The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/dev/cxgbe/t4_main.c

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    1 /*-
    2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    3  *
    4  * Copyright (c) 2011 Chelsio Communications, Inc.
    5  * All rights reserved.
    6  * Written by: Navdeep Parhar <np@FreeBSD.org>
    7  *
    8  * Redistribution and use in source and binary forms, with or without
    9  * modification, are permitted provided that the following conditions
   10  * are met:
   11  * 1. Redistributions of source code must retain the above copyright
   12  *    notice, this list of conditions and the following disclaimer.
   13  * 2. Redistributions in binary form must reproduce the above copyright
   14  *    notice, this list of conditions and the following disclaimer in the
   15  *    documentation and/or other materials provided with the distribution.
   16  *
   17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   27  * SUCH DAMAGE.
   28  */
   29 
   30 #include <sys/cdefs.h>
   31 __FBSDID("$FreeBSD$");
   32 
   33 #include "opt_ddb.h"
   34 #include "opt_inet.h"
   35 #include "opt_inet6.h"
   36 #include "opt_kern_tls.h"
   37 #include "opt_ratelimit.h"
   38 #include "opt_rss.h"
   39 
   40 #include <sys/param.h>
   41 #include <sys/conf.h>
   42 #include <sys/priv.h>
   43 #include <sys/kernel.h>
   44 #include <sys/bus.h>
   45 #include <sys/eventhandler.h>
   46 #include <sys/module.h>
   47 #include <sys/malloc.h>
   48 #include <sys/queue.h>
   49 #include <sys/taskqueue.h>
   50 #include <sys/pciio.h>
   51 #include <dev/pci/pcireg.h>
   52 #include <dev/pci/pcivar.h>
   53 #include <dev/pci/pci_private.h>
   54 #include <sys/firmware.h>
   55 #include <sys/sbuf.h>
   56 #include <sys/smp.h>
   57 #include <sys/socket.h>
   58 #include <sys/sockio.h>
   59 #include <sys/sysctl.h>
   60 #include <net/ethernet.h>
   61 #include <net/if.h>
   62 #include <net/if_types.h>
   63 #include <net/if_dl.h>
   64 #include <net/if_vlan_var.h>
   65 #ifdef RSS
   66 #include <net/rss_config.h>
   67 #endif
   68 #include <netinet/in.h>
   69 #include <netinet/ip.h>
   70 #ifdef KERN_TLS
   71 #include <netinet/tcp_seq.h>
   72 #endif
   73 #if defined(__i386__) || defined(__amd64__)
   74 #include <machine/md_var.h>
   75 #include <machine/cputypes.h>
   76 #include <vm/vm.h>
   77 #include <vm/pmap.h>
   78 #endif
   79 #ifdef DDB
   80 #include <ddb/ddb.h>
   81 #include <ddb/db_lex.h>
   82 #endif
   83 
   84 #include "common/common.h"
   85 #include "common/t4_msg.h"
   86 #include "common/t4_regs.h"
   87 #include "common/t4_regs_values.h"
   88 #include "cudbg/cudbg.h"
   89 #include "t4_clip.h"
   90 #include "t4_ioctl.h"
   91 #include "t4_l2t.h"
   92 #include "t4_mp_ring.h"
   93 #include "t4_if.h"
   94 #include "t4_smt.h"
   95 
   96 /* T4 bus driver interface */
   97 static int t4_probe(device_t);
   98 static int t4_attach(device_t);
   99 static int t4_detach(device_t);
  100 static int t4_child_location(device_t, device_t, struct sbuf *);
  101 static int t4_ready(device_t);
  102 static int t4_read_port_device(device_t, int, device_t *);
  103 static int t4_suspend(device_t);
  104 static int t4_resume(device_t);
  105 static int t4_reset_prepare(device_t, device_t);
  106 static int t4_reset_post(device_t, device_t);
  107 static device_method_t t4_methods[] = {
  108         DEVMETHOD(device_probe,         t4_probe),
  109         DEVMETHOD(device_attach,        t4_attach),
  110         DEVMETHOD(device_detach,        t4_detach),
  111         DEVMETHOD(device_suspend,       t4_suspend),
  112         DEVMETHOD(device_resume,        t4_resume),
  113 
  114         DEVMETHOD(bus_child_location,   t4_child_location),
  115         DEVMETHOD(bus_reset_prepare,    t4_reset_prepare),
  116         DEVMETHOD(bus_reset_post,       t4_reset_post),
  117 
  118         DEVMETHOD(t4_is_main_ready,     t4_ready),
  119         DEVMETHOD(t4_read_port_device,  t4_read_port_device),
  120 
  121         DEVMETHOD_END
  122 };
  123 static driver_t t4_driver = {
  124         "t4nex",
  125         t4_methods,
  126         sizeof(struct adapter)
  127 };
  128 
  129 
  130 /* T4 port (cxgbe) interface */
  131 static int cxgbe_probe(device_t);
  132 static int cxgbe_attach(device_t);
  133 static int cxgbe_detach(device_t);
  134 device_method_t cxgbe_methods[] = {
  135         DEVMETHOD(device_probe,         cxgbe_probe),
  136         DEVMETHOD(device_attach,        cxgbe_attach),
  137         DEVMETHOD(device_detach,        cxgbe_detach),
  138         { 0, 0 }
  139 };
  140 static driver_t cxgbe_driver = {
  141         "cxgbe",
  142         cxgbe_methods,
  143         sizeof(struct port_info)
  144 };
  145 
  146 /* T4 VI (vcxgbe) interface */
  147 static int vcxgbe_probe(device_t);
  148 static int vcxgbe_attach(device_t);
  149 static int vcxgbe_detach(device_t);
  150 static device_method_t vcxgbe_methods[] = {
  151         DEVMETHOD(device_probe,         vcxgbe_probe),
  152         DEVMETHOD(device_attach,        vcxgbe_attach),
  153         DEVMETHOD(device_detach,        vcxgbe_detach),
  154         { 0, 0 }
  155 };
  156 static driver_t vcxgbe_driver = {
  157         "vcxgbe",
  158         vcxgbe_methods,
  159         sizeof(struct vi_info)
  160 };
  161 
  162 static d_ioctl_t t4_ioctl;
  163 
  164 static struct cdevsw t4_cdevsw = {
  165        .d_version = D_VERSION,
  166        .d_ioctl = t4_ioctl,
  167        .d_name = "t4nex",
  168 };
  169 
  170 /* T5 bus driver interface */
  171 static int t5_probe(device_t);
  172 static device_method_t t5_methods[] = {
  173         DEVMETHOD(device_probe,         t5_probe),
  174         DEVMETHOD(device_attach,        t4_attach),
  175         DEVMETHOD(device_detach,        t4_detach),
  176         DEVMETHOD(device_suspend,       t4_suspend),
  177         DEVMETHOD(device_resume,        t4_resume),
  178 
  179         DEVMETHOD(bus_child_location,   t4_child_location),
  180         DEVMETHOD(bus_reset_prepare,    t4_reset_prepare),
  181         DEVMETHOD(bus_reset_post,       t4_reset_post),
  182 
  183         DEVMETHOD(t4_is_main_ready,     t4_ready),
  184         DEVMETHOD(t4_read_port_device,  t4_read_port_device),
  185 
  186         DEVMETHOD_END
  187 };
  188 static driver_t t5_driver = {
  189         "t5nex",
  190         t5_methods,
  191         sizeof(struct adapter)
  192 };
  193 
  194 
  195 /* T5 port (cxl) interface */
  196 static driver_t cxl_driver = {
  197         "cxl",
  198         cxgbe_methods,
  199         sizeof(struct port_info)
  200 };
  201 
  202 /* T5 VI (vcxl) interface */
  203 static driver_t vcxl_driver = {
  204         "vcxl",
  205         vcxgbe_methods,
  206         sizeof(struct vi_info)
  207 };
  208 
  209 /* T6 bus driver interface */
  210 static int t6_probe(device_t);
  211 static device_method_t t6_methods[] = {
  212         DEVMETHOD(device_probe,         t6_probe),
  213         DEVMETHOD(device_attach,        t4_attach),
  214         DEVMETHOD(device_detach,        t4_detach),
  215         DEVMETHOD(device_suspend,       t4_suspend),
  216         DEVMETHOD(device_resume,        t4_resume),
  217 
  218         DEVMETHOD(bus_child_location,   t4_child_location),
  219         DEVMETHOD(bus_reset_prepare,    t4_reset_prepare),
  220         DEVMETHOD(bus_reset_post,       t4_reset_post),
  221 
  222         DEVMETHOD(t4_is_main_ready,     t4_ready),
  223         DEVMETHOD(t4_read_port_device,  t4_read_port_device),
  224 
  225         DEVMETHOD_END
  226 };
  227 static driver_t t6_driver = {
  228         "t6nex",
  229         t6_methods,
  230         sizeof(struct adapter)
  231 };
  232 
  233 
  234 /* T6 port (cc) interface */
  235 static driver_t cc_driver = {
  236         "cc",
  237         cxgbe_methods,
  238         sizeof(struct port_info)
  239 };
  240 
  241 /* T6 VI (vcc) interface */
  242 static driver_t vcc_driver = {
  243         "vcc",
  244         vcxgbe_methods,
  245         sizeof(struct vi_info)
  246 };
  247 
  248 /* ifnet interface */
  249 static void cxgbe_init(void *);
  250 static int cxgbe_ioctl(struct ifnet *, unsigned long, caddr_t);
  251 static int cxgbe_transmit(struct ifnet *, struct mbuf *);
  252 static void cxgbe_qflush(struct ifnet *);
  253 #if defined(KERN_TLS) || defined(RATELIMIT)
  254 static int cxgbe_snd_tag_alloc(struct ifnet *, union if_snd_tag_alloc_params *,
  255     struct m_snd_tag **);
  256 #endif
  257 
  258 MALLOC_DEFINE(M_CXGBE, "cxgbe", "Chelsio T4/T5 Ethernet driver and services");
  259 
  260 /*
  261  * Correct lock order when you need to acquire multiple locks is t4_list_lock,
  262  * then ADAPTER_LOCK, then t4_uld_list_lock.
  263  */
  264 static struct sx t4_list_lock;
  265 SLIST_HEAD(, adapter) t4_list;
  266 #ifdef TCP_OFFLOAD
  267 static struct sx t4_uld_list_lock;
  268 SLIST_HEAD(, uld_info) t4_uld_list;
  269 #endif
  270 
  271 /*
  272  * Tunables.  See tweak_tunables() too.
  273  *
  274  * Each tunable is set to a default value here if it's known at compile-time.
  275  * Otherwise it is set to -n as an indication to tweak_tunables() that it should
  276  * provide a reasonable default (upto n) when the driver is loaded.
  277  *
  278  * Tunables applicable to both T4 and T5 are under hw.cxgbe.  Those specific to
  279  * T5 are under hw.cxl.
  280  */
  281 SYSCTL_NODE(_hw, OID_AUTO, cxgbe, CTLFLAG_RD | CTLFLAG_MPSAFE, 0,
  282     "cxgbe(4) parameters");
  283 SYSCTL_NODE(_hw, OID_AUTO, cxl, CTLFLAG_RD | CTLFLAG_MPSAFE, 0,
  284     "cxgbe(4) T5+ parameters");
  285 SYSCTL_NODE(_hw_cxgbe, OID_AUTO, toe, CTLFLAG_RD | CTLFLAG_MPSAFE, 0,
  286     "cxgbe(4) TOE parameters");
  287 
  288 /*
  289  * Number of queues for tx and rx, NIC and offload.
  290  */
  291 #define NTXQ 16
  292 int t4_ntxq = -NTXQ;
  293 SYSCTL_INT(_hw_cxgbe, OID_AUTO, ntxq, CTLFLAG_RDTUN, &t4_ntxq, 0,
  294     "Number of TX queues per port");
  295 TUNABLE_INT("hw.cxgbe.ntxq10g", &t4_ntxq);      /* Old name, undocumented */
  296 
  297 #define NRXQ 8
  298 int t4_nrxq = -NRXQ;
  299 SYSCTL_INT(_hw_cxgbe, OID_AUTO, nrxq, CTLFLAG_RDTUN, &t4_nrxq, 0,
  300     "Number of RX queues per port");
  301 TUNABLE_INT("hw.cxgbe.nrxq10g", &t4_nrxq);      /* Old name, undocumented */
  302 
  303 #define NTXQ_VI 1
  304 static int t4_ntxq_vi = -NTXQ_VI;
  305 SYSCTL_INT(_hw_cxgbe, OID_AUTO, ntxq_vi, CTLFLAG_RDTUN, &t4_ntxq_vi, 0,
  306     "Number of TX queues per VI");
  307 
  308 #define NRXQ_VI 1
  309 static int t4_nrxq_vi = -NRXQ_VI;
  310 SYSCTL_INT(_hw_cxgbe, OID_AUTO, nrxq_vi, CTLFLAG_RDTUN, &t4_nrxq_vi, 0,
  311     "Number of RX queues per VI");
  312 
  313 static int t4_rsrv_noflowq = 0;
  314 SYSCTL_INT(_hw_cxgbe, OID_AUTO, rsrv_noflowq, CTLFLAG_RDTUN, &t4_rsrv_noflowq,
  315     0, "Reserve TX queue 0 of each VI for non-flowid packets");
  316 
  317 #if defined(TCP_OFFLOAD) || defined(RATELIMIT)
  318 #define NOFLDTXQ 8
  319 static int t4_nofldtxq = -NOFLDTXQ;
  320 SYSCTL_INT(_hw_cxgbe, OID_AUTO, nofldtxq, CTLFLAG_RDTUN, &t4_nofldtxq, 0,
  321     "Number of offload TX queues per port");
  322 
  323 #define NOFLDRXQ 2
  324 static int t4_nofldrxq = -NOFLDRXQ;
  325 SYSCTL_INT(_hw_cxgbe, OID_AUTO, nofldrxq, CTLFLAG_RDTUN, &t4_nofldrxq, 0,
  326     "Number of offload RX queues per port");
  327 
  328 #define NOFLDTXQ_VI 1
  329 static int t4_nofldtxq_vi = -NOFLDTXQ_VI;
  330 SYSCTL_INT(_hw_cxgbe, OID_AUTO, nofldtxq_vi, CTLFLAG_RDTUN, &t4_nofldtxq_vi, 0,
  331     "Number of offload TX queues per VI");
  332 
  333 #define NOFLDRXQ_VI 1
  334 static int t4_nofldrxq_vi = -NOFLDRXQ_VI;
  335 SYSCTL_INT(_hw_cxgbe, OID_AUTO, nofldrxq_vi, CTLFLAG_RDTUN, &t4_nofldrxq_vi, 0,
  336     "Number of offload RX queues per VI");
  337 
  338 #define TMR_IDX_OFLD 1
  339 int t4_tmr_idx_ofld = TMR_IDX_OFLD;
  340 SYSCTL_INT(_hw_cxgbe, OID_AUTO, holdoff_timer_idx_ofld, CTLFLAG_RDTUN,
  341     &t4_tmr_idx_ofld, 0, "Holdoff timer index for offload queues");
  342 
  343 #define PKTC_IDX_OFLD (-1)
  344 int t4_pktc_idx_ofld = PKTC_IDX_OFLD;
  345 SYSCTL_INT(_hw_cxgbe, OID_AUTO, holdoff_pktc_idx_ofld, CTLFLAG_RDTUN,
  346     &t4_pktc_idx_ofld, 0, "holdoff packet counter index for offload queues");
  347 
  348 /* 0 means chip/fw default, non-zero number is value in microseconds */
  349 static u_long t4_toe_keepalive_idle = 0;
  350 SYSCTL_ULONG(_hw_cxgbe_toe, OID_AUTO, keepalive_idle, CTLFLAG_RDTUN,
  351     &t4_toe_keepalive_idle, 0, "TOE keepalive idle timer (us)");
  352 
  353 /* 0 means chip/fw default, non-zero number is value in microseconds */
  354 static u_long t4_toe_keepalive_interval = 0;
  355 SYSCTL_ULONG(_hw_cxgbe_toe, OID_AUTO, keepalive_interval, CTLFLAG_RDTUN,
  356     &t4_toe_keepalive_interval, 0, "TOE keepalive interval timer (us)");
  357 
  358 /* 0 means chip/fw default, non-zero number is # of keepalives before abort */
  359 static int t4_toe_keepalive_count = 0;
  360 SYSCTL_INT(_hw_cxgbe_toe, OID_AUTO, keepalive_count, CTLFLAG_RDTUN,
  361     &t4_toe_keepalive_count, 0, "Number of TOE keepalive probes before abort");
  362 
  363 /* 0 means chip/fw default, non-zero number is value in microseconds */
  364 static u_long t4_toe_rexmt_min = 0;
  365 SYSCTL_ULONG(_hw_cxgbe_toe, OID_AUTO, rexmt_min, CTLFLAG_RDTUN,
  366     &t4_toe_rexmt_min, 0, "Minimum TOE retransmit interval (us)");
  367 
  368 /* 0 means chip/fw default, non-zero number is value in microseconds */
  369 static u_long t4_toe_rexmt_max = 0;
  370 SYSCTL_ULONG(_hw_cxgbe_toe, OID_AUTO, rexmt_max, CTLFLAG_RDTUN,
  371     &t4_toe_rexmt_max, 0, "Maximum TOE retransmit interval (us)");
  372 
  373 /* 0 means chip/fw default, non-zero number is # of rexmt before abort */
  374 static int t4_toe_rexmt_count = 0;
  375 SYSCTL_INT(_hw_cxgbe_toe, OID_AUTO, rexmt_count, CTLFLAG_RDTUN,
  376     &t4_toe_rexmt_count, 0, "Number of TOE retransmissions before abort");
  377 
  378 /* -1 means chip/fw default, other values are raw backoff values to use */
  379 static int t4_toe_rexmt_backoff[16] = {
  380         -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
  381 };
  382 SYSCTL_NODE(_hw_cxgbe_toe, OID_AUTO, rexmt_backoff,
  383     CTLFLAG_RD | CTLFLAG_MPSAFE, 0,
  384     "cxgbe(4) TOE retransmit backoff values");
  385 SYSCTL_INT(_hw_cxgbe_toe_rexmt_backoff, OID_AUTO, 0, CTLFLAG_RDTUN,
  386     &t4_toe_rexmt_backoff[0], 0, "");
  387 SYSCTL_INT(_hw_cxgbe_toe_rexmt_backoff, OID_AUTO, 1, CTLFLAG_RDTUN,
  388     &t4_toe_rexmt_backoff[1], 0, "");
  389 SYSCTL_INT(_hw_cxgbe_toe_rexmt_backoff, OID_AUTO, 2, CTLFLAG_RDTUN,
  390     &t4_toe_rexmt_backoff[2], 0, "");
  391 SYSCTL_INT(_hw_cxgbe_toe_rexmt_backoff, OID_AUTO, 3, CTLFLAG_RDTUN,
  392     &t4_toe_rexmt_backoff[3], 0, "");
  393 SYSCTL_INT(_hw_cxgbe_toe_rexmt_backoff, OID_AUTO, 4, CTLFLAG_RDTUN,
  394     &t4_toe_rexmt_backoff[4], 0, "");
  395 SYSCTL_INT(_hw_cxgbe_toe_rexmt_backoff, OID_AUTO, 5, CTLFLAG_RDTUN,
  396     &t4_toe_rexmt_backoff[5], 0, "");
  397 SYSCTL_INT(_hw_cxgbe_toe_rexmt_backoff, OID_AUTO, 6, CTLFLAG_RDTUN,
  398     &t4_toe_rexmt_backoff[6], 0, "");
  399 SYSCTL_INT(_hw_cxgbe_toe_rexmt_backoff, OID_AUTO, 7, CTLFLAG_RDTUN,
  400     &t4_toe_rexmt_backoff[7], 0, "");
  401 SYSCTL_INT(_hw_cxgbe_toe_rexmt_backoff, OID_AUTO, 8, CTLFLAG_RDTUN,
  402     &t4_toe_rexmt_backoff[8], 0, "");
  403 SYSCTL_INT(_hw_cxgbe_toe_rexmt_backoff, OID_AUTO, 9, CTLFLAG_RDTUN,
  404     &t4_toe_rexmt_backoff[9], 0, "");
  405 SYSCTL_INT(_hw_cxgbe_toe_rexmt_backoff, OID_AUTO, 10, CTLFLAG_RDTUN,
  406     &t4_toe_rexmt_backoff[10], 0, "");
  407 SYSCTL_INT(_hw_cxgbe_toe_rexmt_backoff, OID_AUTO, 11, CTLFLAG_RDTUN,
  408     &t4_toe_rexmt_backoff[11], 0, "");
  409 SYSCTL_INT(_hw_cxgbe_toe_rexmt_backoff, OID_AUTO, 12, CTLFLAG_RDTUN,
  410     &t4_toe_rexmt_backoff[12], 0, "");
  411 SYSCTL_INT(_hw_cxgbe_toe_rexmt_backoff, OID_AUTO, 13, CTLFLAG_RDTUN,
  412     &t4_toe_rexmt_backoff[13], 0, "");
  413 SYSCTL_INT(_hw_cxgbe_toe_rexmt_backoff, OID_AUTO, 14, CTLFLAG_RDTUN,
  414     &t4_toe_rexmt_backoff[14], 0, "");
  415 SYSCTL_INT(_hw_cxgbe_toe_rexmt_backoff, OID_AUTO, 15, CTLFLAG_RDTUN,
  416     &t4_toe_rexmt_backoff[15], 0, "");
  417 #endif
  418 
  419 #ifdef DEV_NETMAP
  420 #define NN_MAIN_VI      (1 << 0)        /* Native netmap on the main VI */
  421 #define NN_EXTRA_VI     (1 << 1)        /* Native netmap on the extra VI(s) */
  422 static int t4_native_netmap = NN_EXTRA_VI;
  423 SYSCTL_INT(_hw_cxgbe, OID_AUTO, native_netmap, CTLFLAG_RDTUN, &t4_native_netmap,
  424     0, "Native netmap support.  bit 0 = main VI, bit 1 = extra VIs");
  425 
  426 #define NNMTXQ 8
  427 static int t4_nnmtxq = -NNMTXQ;
  428 SYSCTL_INT(_hw_cxgbe, OID_AUTO, nnmtxq, CTLFLAG_RDTUN, &t4_nnmtxq, 0,
  429     "Number of netmap TX queues");
  430 
  431 #define NNMRXQ 8
  432 static int t4_nnmrxq = -NNMRXQ;
  433 SYSCTL_INT(_hw_cxgbe, OID_AUTO, nnmrxq, CTLFLAG_RDTUN, &t4_nnmrxq, 0,
  434     "Number of netmap RX queues");
  435 
  436 #define NNMTXQ_VI 2
  437 static int t4_nnmtxq_vi = -NNMTXQ_VI;
  438 SYSCTL_INT(_hw_cxgbe, OID_AUTO, nnmtxq_vi, CTLFLAG_RDTUN, &t4_nnmtxq_vi, 0,
  439     "Number of netmap TX queues per VI");
  440 
  441 #define NNMRXQ_VI 2
  442 static int t4_nnmrxq_vi = -NNMRXQ_VI;
  443 SYSCTL_INT(_hw_cxgbe, OID_AUTO, nnmrxq_vi, CTLFLAG_RDTUN, &t4_nnmrxq_vi, 0,
  444     "Number of netmap RX queues per VI");
  445 #endif
  446 
  447 /*
  448  * Holdoff parameters for ports.
  449  */
  450 #define TMR_IDX 1
  451 int t4_tmr_idx = TMR_IDX;
  452 SYSCTL_INT(_hw_cxgbe, OID_AUTO, holdoff_timer_idx, CTLFLAG_RDTUN, &t4_tmr_idx,
  453     0, "Holdoff timer index");
  454 TUNABLE_INT("hw.cxgbe.holdoff_timer_idx_10G", &t4_tmr_idx);     /* Old name */
  455 
  456 #define PKTC_IDX (-1)
  457 int t4_pktc_idx = PKTC_IDX;
  458 SYSCTL_INT(_hw_cxgbe, OID_AUTO, holdoff_pktc_idx, CTLFLAG_RDTUN, &t4_pktc_idx,
  459     0, "Holdoff packet counter index");
  460 TUNABLE_INT("hw.cxgbe.holdoff_pktc_idx_10G", &t4_pktc_idx);     /* Old name */
  461 
  462 /*
  463  * Size (# of entries) of each tx and rx queue.
  464  */
  465 unsigned int t4_qsize_txq = TX_EQ_QSIZE;
  466 SYSCTL_INT(_hw_cxgbe, OID_AUTO, qsize_txq, CTLFLAG_RDTUN, &t4_qsize_txq, 0,
  467     "Number of descriptors in each TX queue");
  468 
  469 unsigned int t4_qsize_rxq = RX_IQ_QSIZE;
  470 SYSCTL_INT(_hw_cxgbe, OID_AUTO, qsize_rxq, CTLFLAG_RDTUN, &t4_qsize_rxq, 0,
  471     "Number of descriptors in each RX queue");
  472 
  473 /*
  474  * Interrupt types allowed (bits 0, 1, 2 = INTx, MSI, MSI-X respectively).
  475  */
  476 int t4_intr_types = INTR_MSIX | INTR_MSI | INTR_INTX;
  477 SYSCTL_INT(_hw_cxgbe, OID_AUTO, interrupt_types, CTLFLAG_RDTUN, &t4_intr_types,
  478     0, "Interrupt types allowed (bit 0 = INTx, 1 = MSI, 2 = MSI-X)");
  479 
  480 /*
  481  * Configuration file.  All the _CF names here are special.
  482  */
  483 #define DEFAULT_CF      "default"
  484 #define BUILTIN_CF      "built-in"
  485 #define FLASH_CF        "flash"
  486 #define UWIRE_CF        "uwire"
  487 #define FPGA_CF         "fpga"
  488 static char t4_cfg_file[32] = DEFAULT_CF;
  489 SYSCTL_STRING(_hw_cxgbe, OID_AUTO, config_file, CTLFLAG_RDTUN, t4_cfg_file,
  490     sizeof(t4_cfg_file), "Firmware configuration file");
  491 
  492 /*
  493  * PAUSE settings (bit 0, 1, 2 = rx_pause, tx_pause, pause_autoneg respectively).
  494  * rx_pause = 1 to heed incoming PAUSE frames, 0 to ignore them.
  495  * tx_pause = 1 to emit PAUSE frames when the rx FIFO reaches its high water
  496  *            mark or when signalled to do so, 0 to never emit PAUSE.
  497  * pause_autoneg = 1 means PAUSE will be negotiated if possible and the
  498  *                 negotiated settings will override rx_pause/tx_pause.
  499  *                 Otherwise rx_pause/tx_pause are applied forcibly.
  500  */
  501 static int t4_pause_settings = PAUSE_RX | PAUSE_TX | PAUSE_AUTONEG;
  502 SYSCTL_INT(_hw_cxgbe, OID_AUTO, pause_settings, CTLFLAG_RDTUN,
  503     &t4_pause_settings, 0,
  504     "PAUSE settings (bit 0 = rx_pause, 1 = tx_pause, 2 = pause_autoneg)");
  505 
  506 /*
  507  * Forward Error Correction settings (bit 0, 1 = RS, BASER respectively).
  508  * -1 to run with the firmware default.  Same as FEC_AUTO (bit 5)
  509  *  0 to disable FEC.
  510  */
  511 static int t4_fec = -1;
  512 SYSCTL_INT(_hw_cxgbe, OID_AUTO, fec, CTLFLAG_RDTUN, &t4_fec, 0,
  513     "Forward Error Correction (bit 0 = RS, bit 1 = BASER_RS)");
  514 
  515 /*
  516  * Controls when the driver sets the FORCE_FEC bit in the L1_CFG32 that it
  517  * issues to the firmware.  If the firmware doesn't support FORCE_FEC then the
  518  * driver runs as if this is set to 0.
  519  * -1 to set FORCE_FEC iff requested_fec != AUTO. Multiple FEC bits are okay.
  520  *  0 to never set FORCE_FEC. requested_fec = AUTO means use the hint from the
  521  *    transceiver. Multiple FEC bits may not be okay but will be passed on to
  522  *    the firmware anyway (may result in l1cfg errors with old firmwares).
  523  *  1 to always set FORCE_FEC. Multiple FEC bits are okay. requested_fec = AUTO
  524  *    means set all FEC bits that are valid for the speed.
  525  */
  526 static int t4_force_fec = -1;
  527 SYSCTL_INT(_hw_cxgbe, OID_AUTO, force_fec, CTLFLAG_RDTUN, &t4_force_fec, 0,
  528     "Controls the use of FORCE_FEC bit in L1 configuration.");
  529 
  530 /*
  531  * Link autonegotiation.
  532  * -1 to run with the firmware default.
  533  *  0 to disable.
  534  *  1 to enable.
  535  */
  536 static int t4_autoneg = -1;
  537 SYSCTL_INT(_hw_cxgbe, OID_AUTO, autoneg, CTLFLAG_RDTUN, &t4_autoneg, 0,
  538     "Link autonegotiation");
  539 
  540 /*
  541  * Firmware auto-install by driver during attach (0, 1, 2 = prohibited, allowed,
  542  * encouraged respectively).  '-n' is the same as 'n' except the firmware
  543  * version used in the checks is read from the firmware bundled with the driver.
  544  */
  545 static int t4_fw_install = 1;
  546 SYSCTL_INT(_hw_cxgbe, OID_AUTO, fw_install, CTLFLAG_RDTUN, &t4_fw_install, 0,
  547     "Firmware auto-install (0 = prohibited, 1 = allowed, 2 = encouraged)");
  548 
  549 /*
  550  * ASIC features that will be used.  Disable the ones you don't want so that the
  551  * chip resources aren't wasted on features that will not be used.
  552  */
  553 static int t4_nbmcaps_allowed = 0;
  554 SYSCTL_INT(_hw_cxgbe, OID_AUTO, nbmcaps_allowed, CTLFLAG_RDTUN,
  555     &t4_nbmcaps_allowed, 0, "Default NBM capabilities");
  556 
  557 static int t4_linkcaps_allowed = 0;     /* No DCBX, PPP, etc. by default */
  558 SYSCTL_INT(_hw_cxgbe, OID_AUTO, linkcaps_allowed, CTLFLAG_RDTUN,
  559     &t4_linkcaps_allowed, 0, "Default link capabilities");
  560 
  561 static int t4_switchcaps_allowed = FW_CAPS_CONFIG_SWITCH_INGRESS |
  562     FW_CAPS_CONFIG_SWITCH_EGRESS;
  563 SYSCTL_INT(_hw_cxgbe, OID_AUTO, switchcaps_allowed, CTLFLAG_RDTUN,
  564     &t4_switchcaps_allowed, 0, "Default switch capabilities");
  565 
  566 #ifdef RATELIMIT
  567 static int t4_niccaps_allowed = FW_CAPS_CONFIG_NIC |
  568         FW_CAPS_CONFIG_NIC_HASHFILTER | FW_CAPS_CONFIG_NIC_ETHOFLD;
  569 #else
  570 static int t4_niccaps_allowed = FW_CAPS_CONFIG_NIC |
  571         FW_CAPS_CONFIG_NIC_HASHFILTER;
  572 #endif
  573 SYSCTL_INT(_hw_cxgbe, OID_AUTO, niccaps_allowed, CTLFLAG_RDTUN,
  574     &t4_niccaps_allowed, 0, "Default NIC capabilities");
  575 
  576 static int t4_toecaps_allowed = -1;
  577 SYSCTL_INT(_hw_cxgbe, OID_AUTO, toecaps_allowed, CTLFLAG_RDTUN,
  578     &t4_toecaps_allowed, 0, "Default TCP offload capabilities");
  579 
  580 static int t4_rdmacaps_allowed = -1;
  581 SYSCTL_INT(_hw_cxgbe, OID_AUTO, rdmacaps_allowed, CTLFLAG_RDTUN,
  582     &t4_rdmacaps_allowed, 0, "Default RDMA capabilities");
  583 
  584 static int t4_cryptocaps_allowed = -1;
  585 SYSCTL_INT(_hw_cxgbe, OID_AUTO, cryptocaps_allowed, CTLFLAG_RDTUN,
  586     &t4_cryptocaps_allowed, 0, "Default crypto capabilities");
  587 
  588 static int t4_iscsicaps_allowed = -1;
  589 SYSCTL_INT(_hw_cxgbe, OID_AUTO, iscsicaps_allowed, CTLFLAG_RDTUN,
  590     &t4_iscsicaps_allowed, 0, "Default iSCSI capabilities");
  591 
  592 static int t4_fcoecaps_allowed = 0;
  593 SYSCTL_INT(_hw_cxgbe, OID_AUTO, fcoecaps_allowed, CTLFLAG_RDTUN,
  594     &t4_fcoecaps_allowed, 0, "Default FCoE capabilities");
  595 
  596 static int t5_write_combine = 0;
  597 SYSCTL_INT(_hw_cxl, OID_AUTO, write_combine, CTLFLAG_RDTUN, &t5_write_combine,
  598     0, "Use WC instead of UC for BAR2");
  599 
  600 static int t4_num_vis = 1;
  601 SYSCTL_INT(_hw_cxgbe, OID_AUTO, num_vis, CTLFLAG_RDTUN, &t4_num_vis, 0,
  602     "Number of VIs per port");
  603 
  604 /*
  605  * PCIe Relaxed Ordering.
  606  * -1: driver should figure out a good value.
  607  * 0: disable RO.
  608  * 1: enable RO.
  609  * 2: leave RO alone.
  610  */
  611 static int pcie_relaxed_ordering = -1;
  612 SYSCTL_INT(_hw_cxgbe, OID_AUTO, pcie_relaxed_ordering, CTLFLAG_RDTUN,
  613     &pcie_relaxed_ordering, 0,
  614     "PCIe Relaxed Ordering: 0 = disable, 1 = enable, 2 = leave alone");
  615 
  616 static int t4_panic_on_fatal_err = 0;
  617 SYSCTL_INT(_hw_cxgbe, OID_AUTO, panic_on_fatal_err, CTLFLAG_RWTUN,
  618     &t4_panic_on_fatal_err, 0, "panic on fatal errors");
  619 
  620 static int t4_reset_on_fatal_err = 0;
  621 SYSCTL_INT(_hw_cxgbe, OID_AUTO, reset_on_fatal_err, CTLFLAG_RWTUN,
  622     &t4_reset_on_fatal_err, 0, "reset adapter on fatal errors");
  623 
  624 static int t4_clock_gate_on_suspend = 0;
  625 SYSCTL_INT(_hw_cxgbe, OID_AUTO, clock_gate_on_suspend, CTLFLAG_RWTUN,
  626     &t4_clock_gate_on_suspend, 0, "gate the clock on suspend");
  627 
  628 static int t4_tx_vm_wr = 0;
  629 SYSCTL_INT(_hw_cxgbe, OID_AUTO, tx_vm_wr, CTLFLAG_RWTUN, &t4_tx_vm_wr, 0,
  630     "Use VM work requests to transmit packets.");
  631 
  632 /*
  633  * Set to non-zero to enable the attack filter.  A packet that matches any of
  634  * these conditions will get dropped on ingress:
  635  * 1) IP && source address == destination address.
  636  * 2) TCP/IP && source address is not a unicast address.
  637  * 3) TCP/IP && destination address is not a unicast address.
  638  * 4) IP && source address is loopback (127.x.y.z).
  639  * 5) IP && destination address is loopback (127.x.y.z).
  640  * 6) IPv6 && source address == destination address.
  641  * 7) IPv6 && source address is not a unicast address.
  642  * 8) IPv6 && source address is loopback (::1/128).
  643  * 9) IPv6 && destination address is loopback (::1/128).
  644  * 10) IPv6 && source address is unspecified (::/128).
  645  * 11) IPv6 && destination address is unspecified (::/128).
  646  * 12) TCP/IPv6 && source address is multicast (ff00::/8).
  647  * 13) TCP/IPv6 && destination address is multicast (ff00::/8).
  648  */
  649 static int t4_attack_filter = 0;
  650 SYSCTL_INT(_hw_cxgbe, OID_AUTO, attack_filter, CTLFLAG_RDTUN,
  651     &t4_attack_filter, 0, "Drop suspicious traffic");
  652 
  653 static int t4_drop_ip_fragments = 0;
  654 SYSCTL_INT(_hw_cxgbe, OID_AUTO, drop_ip_fragments, CTLFLAG_RDTUN,
  655     &t4_drop_ip_fragments, 0, "Drop IP fragments");
  656 
  657 static int t4_drop_pkts_with_l2_errors = 1;
  658 SYSCTL_INT(_hw_cxgbe, OID_AUTO, drop_pkts_with_l2_errors, CTLFLAG_RDTUN,
  659     &t4_drop_pkts_with_l2_errors, 0,
  660     "Drop all frames with Layer 2 length or checksum errors");
  661 
  662 static int t4_drop_pkts_with_l3_errors = 0;
  663 SYSCTL_INT(_hw_cxgbe, OID_AUTO, drop_pkts_with_l3_errors, CTLFLAG_RDTUN,
  664     &t4_drop_pkts_with_l3_errors, 0,
  665     "Drop all frames with IP version, length, or checksum errors");
  666 
  667 static int t4_drop_pkts_with_l4_errors = 0;
  668 SYSCTL_INT(_hw_cxgbe, OID_AUTO, drop_pkts_with_l4_errors, CTLFLAG_RDTUN,
  669     &t4_drop_pkts_with_l4_errors, 0,
  670     "Drop all frames with Layer 4 length, checksum, or other errors");
  671 
  672 #ifdef TCP_OFFLOAD
  673 /*
  674  * TOE tunables.
  675  */
  676 static int t4_cop_managed_offloading = 0;
  677 SYSCTL_INT(_hw_cxgbe, OID_AUTO, cop_managed_offloading, CTLFLAG_RDTUN,
  678     &t4_cop_managed_offloading, 0,
  679     "COP (Connection Offload Policy) controls all TOE offload");
  680 #endif
  681 
  682 #ifdef KERN_TLS
  683 /*
  684  * This enables KERN_TLS for all adapters if set.
  685  */
  686 static int t4_kern_tls = 0;
  687 SYSCTL_INT(_hw_cxgbe, OID_AUTO, kern_tls, CTLFLAG_RDTUN, &t4_kern_tls, 0,
  688     "Enable KERN_TLS mode for T6 adapters");
  689 
  690 SYSCTL_NODE(_hw_cxgbe, OID_AUTO, tls, CTLFLAG_RD | CTLFLAG_MPSAFE, 0,
  691     "cxgbe(4) KERN_TLS parameters");
  692 
  693 static int t4_tls_inline_keys = 0;
  694 SYSCTL_INT(_hw_cxgbe_tls, OID_AUTO, inline_keys, CTLFLAG_RDTUN,
  695     &t4_tls_inline_keys, 0,
  696     "Always pass TLS keys in work requests (1) or attempt to store TLS keys "
  697     "in card memory.");
  698 
  699 static int t4_tls_combo_wrs = 0;
  700 SYSCTL_INT(_hw_cxgbe_tls, OID_AUTO, combo_wrs, CTLFLAG_RDTUN, &t4_tls_combo_wrs,
  701     0, "Attempt to combine TCB field updates with TLS record work requests.");
  702 #endif
  703 
  704 /* Functions used by VIs to obtain unique MAC addresses for each VI. */
  705 static int vi_mac_funcs[] = {
  706         FW_VI_FUNC_ETH,
  707         FW_VI_FUNC_OFLD,
  708         FW_VI_FUNC_IWARP,
  709         FW_VI_FUNC_OPENISCSI,
  710         FW_VI_FUNC_OPENFCOE,
  711         FW_VI_FUNC_FOISCSI,
  712         FW_VI_FUNC_FOFCOE,
  713 };
  714 
  715 struct intrs_and_queues {
  716         uint16_t intr_type;     /* INTx, MSI, or MSI-X */
  717         uint16_t num_vis;       /* number of VIs for each port */
  718         uint16_t nirq;          /* Total # of vectors */
  719         uint16_t ntxq;          /* # of NIC txq's for each port */
  720         uint16_t nrxq;          /* # of NIC rxq's for each port */
  721         uint16_t nofldtxq;      /* # of TOE/ETHOFLD txq's for each port */
  722         uint16_t nofldrxq;      /* # of TOE rxq's for each port */
  723         uint16_t nnmtxq;        /* # of netmap txq's */
  724         uint16_t nnmrxq;        /* # of netmap rxq's */
  725 
  726         /* The vcxgbe/vcxl interfaces use these and not the ones above. */
  727         uint16_t ntxq_vi;       /* # of NIC txq's */
  728         uint16_t nrxq_vi;       /* # of NIC rxq's */
  729         uint16_t nofldtxq_vi;   /* # of TOE txq's */
  730         uint16_t nofldrxq_vi;   /* # of TOE rxq's */
  731         uint16_t nnmtxq_vi;     /* # of netmap txq's */
  732         uint16_t nnmrxq_vi;     /* # of netmap rxq's */
  733 };
  734 
  735 static void setup_memwin(struct adapter *);
  736 static void position_memwin(struct adapter *, int, uint32_t);
  737 static int validate_mem_range(struct adapter *, uint32_t, uint32_t);
  738 static int fwmtype_to_hwmtype(int);
  739 static int validate_mt_off_len(struct adapter *, int, uint32_t, uint32_t,
  740     uint32_t *);
  741 static int fixup_devlog_params(struct adapter *);
  742 static int cfg_itype_and_nqueues(struct adapter *, struct intrs_and_queues *);
  743 static int contact_firmware(struct adapter *);
  744 static int partition_resources(struct adapter *);
  745 static int get_params__pre_init(struct adapter *);
  746 static int set_params__pre_init(struct adapter *);
  747 static int get_params__post_init(struct adapter *);
  748 static int set_params__post_init(struct adapter *);
  749 static void t4_set_desc(struct adapter *);
  750 static bool fixed_ifmedia(struct port_info *);
  751 static void build_medialist(struct port_info *);
  752 static void init_link_config(struct port_info *);
  753 static int fixup_link_config(struct port_info *);
  754 static int apply_link_config(struct port_info *);
  755 static int cxgbe_init_synchronized(struct vi_info *);
  756 static int cxgbe_uninit_synchronized(struct vi_info *);
  757 static int adapter_full_init(struct adapter *);
  758 static void adapter_full_uninit(struct adapter *);
  759 static int vi_full_init(struct vi_info *);
  760 static void vi_full_uninit(struct vi_info *);
  761 static int alloc_extra_vi(struct adapter *, struct port_info *, struct vi_info *);
  762 static void quiesce_txq(struct sge_txq *);
  763 static void quiesce_wrq(struct sge_wrq *);
  764 static void quiesce_iq_fl(struct adapter *, struct sge_iq *, struct sge_fl *);
  765 static void quiesce_vi(struct vi_info *);
  766 static int t4_alloc_irq(struct adapter *, struct irq *, int rid,
  767     driver_intr_t *, void *, char *);
  768 static int t4_free_irq(struct adapter *, struct irq *);
  769 static void t4_init_atid_table(struct adapter *);
  770 static void t4_free_atid_table(struct adapter *);
  771 static void get_regs(struct adapter *, struct t4_regdump *, uint8_t *);
  772 static void vi_refresh_stats(struct vi_info *);
  773 static void cxgbe_refresh_stats(struct vi_info *);
  774 static void cxgbe_tick(void *);
  775 static void vi_tick(void *);
  776 static void cxgbe_sysctls(struct port_info *);
  777 static int sysctl_int_array(SYSCTL_HANDLER_ARGS);
  778 static int sysctl_bitfield_8b(SYSCTL_HANDLER_ARGS);
  779 static int sysctl_bitfield_16b(SYSCTL_HANDLER_ARGS);
  780 static int sysctl_btphy(SYSCTL_HANDLER_ARGS);
  781 static int sysctl_noflowq(SYSCTL_HANDLER_ARGS);
  782 static int sysctl_tx_vm_wr(SYSCTL_HANDLER_ARGS);
  783 static int sysctl_holdoff_tmr_idx(SYSCTL_HANDLER_ARGS);
  784 static int sysctl_holdoff_pktc_idx(SYSCTL_HANDLER_ARGS);
  785 static int sysctl_qsize_rxq(SYSCTL_HANDLER_ARGS);
  786 static int sysctl_qsize_txq(SYSCTL_HANDLER_ARGS);
  787 static int sysctl_pause_settings(SYSCTL_HANDLER_ARGS);
  788 static int sysctl_link_fec(SYSCTL_HANDLER_ARGS);
  789 static int sysctl_requested_fec(SYSCTL_HANDLER_ARGS);
  790 static int sysctl_module_fec(SYSCTL_HANDLER_ARGS);
  791 static int sysctl_autoneg(SYSCTL_HANDLER_ARGS);
  792 static int sysctl_force_fec(SYSCTL_HANDLER_ARGS);
  793 static int sysctl_handle_t4_reg64(SYSCTL_HANDLER_ARGS);
  794 static int sysctl_temperature(SYSCTL_HANDLER_ARGS);
  795 static int sysctl_vdd(SYSCTL_HANDLER_ARGS);
  796 static int sysctl_reset_sensor(SYSCTL_HANDLER_ARGS);
  797 static int sysctl_loadavg(SYSCTL_HANDLER_ARGS);
  798 static int sysctl_cctrl(SYSCTL_HANDLER_ARGS);
  799 static int sysctl_cim_ibq_obq(SYSCTL_HANDLER_ARGS);
  800 static int sysctl_cim_la(SYSCTL_HANDLER_ARGS);
  801 static int sysctl_cim_ma_la(SYSCTL_HANDLER_ARGS);
  802 static int sysctl_cim_pif_la(SYSCTL_HANDLER_ARGS);
  803 static int sysctl_cim_qcfg(SYSCTL_HANDLER_ARGS);
  804 static int sysctl_cpl_stats(SYSCTL_HANDLER_ARGS);
  805 static int sysctl_ddp_stats(SYSCTL_HANDLER_ARGS);
  806 static int sysctl_tid_stats(SYSCTL_HANDLER_ARGS);
  807 static int sysctl_devlog(SYSCTL_HANDLER_ARGS);
  808 static int sysctl_fcoe_stats(SYSCTL_HANDLER_ARGS);
  809 static int sysctl_hw_sched(SYSCTL_HANDLER_ARGS);
  810 static int sysctl_lb_stats(SYSCTL_HANDLER_ARGS);
  811 static int sysctl_linkdnrc(SYSCTL_HANDLER_ARGS);
  812 static int sysctl_meminfo(SYSCTL_HANDLER_ARGS);
  813 static int sysctl_mps_tcam(SYSCTL_HANDLER_ARGS);
  814 static int sysctl_mps_tcam_t6(SYSCTL_HANDLER_ARGS);
  815 static int sysctl_path_mtus(SYSCTL_HANDLER_ARGS);
  816 static int sysctl_pm_stats(SYSCTL_HANDLER_ARGS);
  817 static int sysctl_rdma_stats(SYSCTL_HANDLER_ARGS);
  818 static int sysctl_tcp_stats(SYSCTL_HANDLER_ARGS);
  819 static int sysctl_tids(SYSCTL_HANDLER_ARGS);
  820 static int sysctl_tp_err_stats(SYSCTL_HANDLER_ARGS);
  821 static int sysctl_tnl_stats(SYSCTL_HANDLER_ARGS);
  822 static int sysctl_tp_la_mask(SYSCTL_HANDLER_ARGS);
  823 static int sysctl_tp_la(SYSCTL_HANDLER_ARGS);
  824 static int sysctl_tx_rate(SYSCTL_HANDLER_ARGS);
  825 static int sysctl_ulprx_la(SYSCTL_HANDLER_ARGS);
  826 static int sysctl_wcwr_stats(SYSCTL_HANDLER_ARGS);
  827 static int sysctl_cpus(SYSCTL_HANDLER_ARGS);
  828 static int sysctl_reset(SYSCTL_HANDLER_ARGS);
  829 #ifdef TCP_OFFLOAD
  830 static int sysctl_tls(SYSCTL_HANDLER_ARGS);
  831 static int sysctl_tp_tick(SYSCTL_HANDLER_ARGS);
  832 static int sysctl_tp_dack_timer(SYSCTL_HANDLER_ARGS);
  833 static int sysctl_tp_timer(SYSCTL_HANDLER_ARGS);
  834 static int sysctl_tp_shift_cnt(SYSCTL_HANDLER_ARGS);
  835 static int sysctl_tp_backoff(SYSCTL_HANDLER_ARGS);
  836 static int sysctl_holdoff_tmr_idx_ofld(SYSCTL_HANDLER_ARGS);
  837 static int sysctl_holdoff_pktc_idx_ofld(SYSCTL_HANDLER_ARGS);
  838 #endif
  839 static int get_sge_context(struct adapter *, struct t4_sge_context *);
  840 static int load_fw(struct adapter *, struct t4_data *);
  841 static int load_cfg(struct adapter *, struct t4_data *);
  842 static int load_boot(struct adapter *, struct t4_bootrom *);
  843 static int load_bootcfg(struct adapter *, struct t4_data *);
  844 static int cudbg_dump(struct adapter *, struct t4_cudbg_dump *);
  845 static void free_offload_policy(struct t4_offload_policy *);
  846 static int set_offload_policy(struct adapter *, struct t4_offload_policy *);
  847 static int read_card_mem(struct adapter *, int, struct t4_mem_range *);
  848 static int read_i2c(struct adapter *, struct t4_i2c_data *);
  849 static int clear_stats(struct adapter *, u_int);
  850 static int hold_clip_addr(struct adapter *, struct t4_clip_addr *);
  851 static int release_clip_addr(struct adapter *, struct t4_clip_addr *);
  852 #ifdef TCP_OFFLOAD
  853 static int toe_capability(struct vi_info *, bool);
  854 static int t4_deactivate_all_uld(struct adapter *);
  855 static void t4_async_event(struct adapter *);
  856 #endif
  857 #ifdef KERN_TLS
  858 static int ktls_capability(struct adapter *, bool);
  859 #endif
  860 static int mod_event(module_t, int, void *);
  861 static int notify_siblings(device_t, int);
  862 static uint64_t vi_get_counter(struct ifnet *, ift_counter);
  863 static uint64_t cxgbe_get_counter(struct ifnet *, ift_counter);
  864 static void enable_vxlan_rx(struct adapter *);
  865 static void reset_adapter_task(void *, int);
  866 static void fatal_error_task(void *, int);
  867 static void dump_devlog(struct adapter *);
  868 static void dump_cim_regs(struct adapter *);
  869 static void dump_cimla(struct adapter *);
  870 
  871 struct {
  872         uint16_t device;
  873         char *desc;
  874 } t4_pciids[] = {
  875         {0xa000, "Chelsio Terminator 4 FPGA"},
  876         {0x4400, "Chelsio T440-dbg"},
  877         {0x4401, "Chelsio T420-CR"},
  878         {0x4402, "Chelsio T422-CR"},
  879         {0x4403, "Chelsio T440-CR"},
  880         {0x4404, "Chelsio T420-BCH"},
  881         {0x4405, "Chelsio T440-BCH"},
  882         {0x4406, "Chelsio T440-CH"},
  883         {0x4407, "Chelsio T420-SO"},
  884         {0x4408, "Chelsio T420-CX"},
  885         {0x4409, "Chelsio T420-BT"},
  886         {0x440a, "Chelsio T404-BT"},
  887         {0x440e, "Chelsio T440-LP-CR"},
  888 }, t5_pciids[] = {
  889         {0xb000, "Chelsio Terminator 5 FPGA"},
  890         {0x5400, "Chelsio T580-dbg"},
  891         {0x5401,  "Chelsio T520-CR"},           /* 2 x 10G */
  892         {0x5402,  "Chelsio T522-CR"},           /* 2 x 10G, 2 X 1G */
  893         {0x5403,  "Chelsio T540-CR"},           /* 4 x 10G */
  894         {0x5407,  "Chelsio T520-SO"},           /* 2 x 10G, nomem */
  895         {0x5409,  "Chelsio T520-BT"},           /* 2 x 10GBaseT */
  896         {0x540a,  "Chelsio T504-BT"},           /* 4 x 1G */
  897         {0x540d,  "Chelsio T580-CR"},           /* 2 x 40G */
  898         {0x540e,  "Chelsio T540-LP-CR"},        /* 4 x 10G */
  899         {0x5410,  "Chelsio T580-LP-CR"},        /* 2 x 40G */
  900         {0x5411,  "Chelsio T520-LL-CR"},        /* 2 x 10G */
  901         {0x5412,  "Chelsio T560-CR"},           /* 1 x 40G, 2 x 10G */
  902         {0x5414,  "Chelsio T580-LP-SO-CR"},     /* 2 x 40G, nomem */
  903         {0x5415,  "Chelsio T502-BT"},           /* 2 x 1G */
  904         {0x5418,  "Chelsio T540-BT"},           /* 4 x 10GBaseT */
  905         {0x5419,  "Chelsio T540-LP-BT"},        /* 4 x 10GBaseT */
  906         {0x541a,  "Chelsio T540-SO-BT"},        /* 4 x 10GBaseT, nomem */
  907         {0x541b,  "Chelsio T540-SO-CR"},        /* 4 x 10G, nomem */
  908 
  909         /* Custom */
  910         {0x5483, "Custom T540-CR"},
  911         {0x5484, "Custom T540-BT"},
  912 }, t6_pciids[] = {
  913         {0xc006, "Chelsio Terminator 6 FPGA"},  /* T6 PE10K6 FPGA (PF0) */
  914         {0x6400, "Chelsio T6-DBG-25"},          /* 2 x 10/25G, debug */
  915         {0x6401, "Chelsio T6225-CR"},           /* 2 x 10/25G */
  916         {0x6402, "Chelsio T6225-SO-CR"},        /* 2 x 10/25G, nomem */
  917         {0x6403, "Chelsio T6425-CR"},           /* 4 x 10/25G */
  918         {0x6404, "Chelsio T6425-SO-CR"},        /* 4 x 10/25G, nomem */
  919         {0x6405, "Chelsio T6225-OCP-SO"},       /* 2 x 10/25G, nomem */
  920         {0x6406, "Chelsio T62100-OCP-SO"},      /* 2 x 40/50/100G, nomem */
  921         {0x6407, "Chelsio T62100-LP-CR"},       /* 2 x 40/50/100G */
  922         {0x6408, "Chelsio T62100-SO-CR"},       /* 2 x 40/50/100G, nomem */
  923         {0x6409, "Chelsio T6210-BT"},           /* 2 x 10GBASE-T */
  924         {0x640d, "Chelsio T62100-CR"},          /* 2 x 40/50/100G */
  925         {0x6410, "Chelsio T6-DBG-100"},         /* 2 x 40/50/100G, debug */
  926         {0x6411, "Chelsio T6225-LL-CR"},        /* 2 x 10/25G */
  927         {0x6414, "Chelsio T61100-OCP-SO"},      /* 1 x 40/50/100G, nomem */
  928         {0x6415, "Chelsio T6201-BT"},           /* 2 x 1000BASE-T */
  929 
  930         /* Custom */
  931         {0x6480, "Custom T6225-CR"},
  932         {0x6481, "Custom T62100-CR"},
  933         {0x6482, "Custom T6225-CR"},
  934         {0x6483, "Custom T62100-CR"},
  935         {0x6484, "Custom T64100-CR"},
  936         {0x6485, "Custom T6240-SO"},
  937         {0x6486, "Custom T6225-SO-CR"},
  938         {0x6487, "Custom T6225-CR"},
  939 };
  940 
  941 #ifdef TCP_OFFLOAD
  942 /*
  943  * service_iq_fl() has an iq and needs the fl.  Offset of fl from the iq should
  944  * be exactly the same for both rxq and ofld_rxq.
  945  */
  946 CTASSERT(offsetof(struct sge_ofld_rxq, iq) == offsetof(struct sge_rxq, iq));
  947 CTASSERT(offsetof(struct sge_ofld_rxq, fl) == offsetof(struct sge_rxq, fl));
  948 #endif
  949 CTASSERT(sizeof(struct cluster_metadata) <= CL_METADATA_SIZE);
  950 
  951 static int
  952 t4_probe(device_t dev)
  953 {
  954         int i;
  955         uint16_t v = pci_get_vendor(dev);
  956         uint16_t d = pci_get_device(dev);
  957         uint8_t f = pci_get_function(dev);
  958 
  959         if (v != PCI_VENDOR_ID_CHELSIO)
  960                 return (ENXIO);
  961 
  962         /* Attach only to PF0 of the FPGA */
  963         if (d == 0xa000 && f != 0)
  964                 return (ENXIO);
  965 
  966         for (i = 0; i < nitems(t4_pciids); i++) {
  967                 if (d == t4_pciids[i].device) {
  968                         device_set_desc(dev, t4_pciids[i].desc);
  969                         return (BUS_PROBE_DEFAULT);
  970                 }
  971         }
  972 
  973         return (ENXIO);
  974 }
  975 
  976 static int
  977 t5_probe(device_t dev)
  978 {
  979         int i;
  980         uint16_t v = pci_get_vendor(dev);
  981         uint16_t d = pci_get_device(dev);
  982         uint8_t f = pci_get_function(dev);
  983 
  984         if (v != PCI_VENDOR_ID_CHELSIO)
  985                 return (ENXIO);
  986 
  987         /* Attach only to PF0 of the FPGA */
  988         if (d == 0xb000 && f != 0)
  989                 return (ENXIO);
  990 
  991         for (i = 0; i < nitems(t5_pciids); i++) {
  992                 if (d == t5_pciids[i].device) {
  993                         device_set_desc(dev, t5_pciids[i].desc);
  994                         return (BUS_PROBE_DEFAULT);
  995                 }
  996         }
  997 
  998         return (ENXIO);
  999 }
 1000 
 1001 static int
 1002 t6_probe(device_t dev)
 1003 {
 1004         int i;
 1005         uint16_t v = pci_get_vendor(dev);
 1006         uint16_t d = pci_get_device(dev);
 1007 
 1008         if (v != PCI_VENDOR_ID_CHELSIO)
 1009                 return (ENXIO);
 1010 
 1011         for (i = 0; i < nitems(t6_pciids); i++) {
 1012                 if (d == t6_pciids[i].device) {
 1013                         device_set_desc(dev, t6_pciids[i].desc);
 1014                         return (BUS_PROBE_DEFAULT);
 1015                 }
 1016         }
 1017 
 1018         return (ENXIO);
 1019 }
 1020 
 1021 static void
 1022 t5_attribute_workaround(device_t dev)
 1023 {
 1024         device_t root_port;
 1025         uint32_t v;
 1026 
 1027         /*
 1028          * The T5 chips do not properly echo the No Snoop and Relaxed
 1029          * Ordering attributes when replying to a TLP from a Root
 1030          * Port.  As a workaround, find the parent Root Port and
 1031          * disable No Snoop and Relaxed Ordering.  Note that this
 1032          * affects all devices under this root port.
 1033          */
 1034         root_port = pci_find_pcie_root_port(dev);
 1035         if (root_port == NULL) {
 1036                 device_printf(dev, "Unable to find parent root port\n");
 1037                 return;
 1038         }
 1039 
 1040         v = pcie_adjust_config(root_port, PCIER_DEVICE_CTL,
 1041             PCIEM_CTL_RELAXED_ORD_ENABLE | PCIEM_CTL_NOSNOOP_ENABLE, 0, 2);
 1042         if ((v & (PCIEM_CTL_RELAXED_ORD_ENABLE | PCIEM_CTL_NOSNOOP_ENABLE)) !=
 1043             0)
 1044                 device_printf(dev, "Disabled No Snoop/Relaxed Ordering on %s\n",
 1045                     device_get_nameunit(root_port));
 1046 }
 1047 
 1048 static const struct devnames devnames[] = {
 1049         {
 1050                 .nexus_name = "t4nex",
 1051                 .ifnet_name = "cxgbe",
 1052                 .vi_ifnet_name = "vcxgbe",
 1053                 .pf03_drv_name = "t4iov",
 1054                 .vf_nexus_name = "t4vf",
 1055                 .vf_ifnet_name = "cxgbev"
 1056         }, {
 1057                 .nexus_name = "t5nex",
 1058                 .ifnet_name = "cxl",
 1059                 .vi_ifnet_name = "vcxl",
 1060                 .pf03_drv_name = "t5iov",
 1061                 .vf_nexus_name = "t5vf",
 1062                 .vf_ifnet_name = "cxlv"
 1063         }, {
 1064                 .nexus_name = "t6nex",
 1065                 .ifnet_name = "cc",
 1066                 .vi_ifnet_name = "vcc",
 1067                 .pf03_drv_name = "t6iov",
 1068                 .vf_nexus_name = "t6vf",
 1069                 .vf_ifnet_name = "ccv"
 1070         }
 1071 };
 1072 
 1073 void
 1074 t4_init_devnames(struct adapter *sc)
 1075 {
 1076         int id;
 1077 
 1078         id = chip_id(sc);
 1079         if (id >= CHELSIO_T4 && id - CHELSIO_T4 < nitems(devnames))
 1080                 sc->names = &devnames[id - CHELSIO_T4];
 1081         else {
 1082                 device_printf(sc->dev, "chip id %d is not supported.\n", id);
 1083                 sc->names = NULL;
 1084         }
 1085 }
 1086 
 1087 static int
 1088 t4_ifnet_unit(struct adapter *sc, struct port_info *pi)
 1089 {
 1090         const char *parent, *name;
 1091         long value;
 1092         int line, unit;
 1093 
 1094         line = 0;
 1095         parent = device_get_nameunit(sc->dev);
 1096         name = sc->names->ifnet_name;
 1097         while (resource_find_dev(&line, name, &unit, "at", parent) == 0) {
 1098                 if (resource_long_value(name, unit, "port", &value) == 0 &&
 1099                     value == pi->port_id)
 1100                         return (unit);
 1101         }
 1102         return (-1);
 1103 }
 1104 
 1105 static void
 1106 t4_calibration(void *arg)
 1107 {
 1108         struct adapter *sc;
 1109         struct clock_sync *cur, *nex;
 1110         uint64_t hw;
 1111         sbintime_t sbt;
 1112         int next_up;
 1113 
 1114         sc = (struct adapter *)arg;
 1115 
 1116         KASSERT((hw_off_limits(sc) == 0), ("hw_off_limits at t4_calibration"));
 1117         hw = t4_read_reg64(sc, A_SGE_TIMESTAMP_LO);
 1118         sbt = sbinuptime();
 1119 
 1120         cur = &sc->cal_info[sc->cal_current];
 1121         next_up = (sc->cal_current + 1) % CNT_CAL_INFO;
 1122         nex = &sc->cal_info[next_up];
 1123         if (__predict_false(sc->cal_count == 0)) {
 1124                 /* First time in, just get the values in */
 1125                 cur->hw_cur = hw;
 1126                 cur->sbt_cur = sbt;
 1127                 sc->cal_count++;
 1128                 goto done;
 1129         }
 1130 
 1131         if (cur->hw_cur == hw) {
 1132                 /* The clock is not advancing? */
 1133                 sc->cal_count = 0;
 1134                 atomic_store_rel_int(&cur->gen, 0);
 1135                 goto done;
 1136         }
 1137 
 1138         seqc_write_begin(&nex->gen);
 1139         nex->hw_prev = cur->hw_cur;
 1140         nex->sbt_prev = cur->sbt_cur;
 1141         nex->hw_cur = hw;
 1142         nex->sbt_cur = sbt;
 1143         seqc_write_end(&nex->gen);
 1144         sc->cal_current = next_up;
 1145 done:
 1146         callout_reset_sbt_curcpu(&sc->cal_callout, SBT_1S, 0, t4_calibration,
 1147             sc, C_DIRECT_EXEC);
 1148 }
 1149 
 1150 static void
 1151 t4_calibration_start(struct adapter *sc)
 1152 {
 1153         /*
 1154          * Here if we have not done a calibration
 1155          * then do so otherwise start the appropriate
 1156          * timer.
 1157          */
 1158         int i;
 1159 
 1160         for (i = 0; i < CNT_CAL_INFO; i++) {
 1161                 sc->cal_info[i].gen = 0;
 1162         }
 1163         sc->cal_current = 0;
 1164         sc->cal_count = 0;
 1165         sc->cal_gen = 0;
 1166         t4_calibration(sc);
 1167 }
 1168 
 1169 static int
 1170 t4_attach(device_t dev)
 1171 {
 1172         struct adapter *sc;
 1173         int rc = 0, i, j, rqidx, tqidx, nports;
 1174         struct make_dev_args mda;
 1175         struct intrs_and_queues iaq;
 1176         struct sge *s;
 1177         uint32_t *buf;
 1178 #if defined(TCP_OFFLOAD) || defined(RATELIMIT)
 1179         int ofld_tqidx;
 1180 #endif
 1181 #ifdef TCP_OFFLOAD
 1182         int ofld_rqidx;
 1183 #endif
 1184 #ifdef DEV_NETMAP
 1185         int nm_rqidx, nm_tqidx;
 1186 #endif
 1187         int num_vis;
 1188 
 1189         sc = device_get_softc(dev);
 1190         sc->dev = dev;
 1191         sysctl_ctx_init(&sc->ctx);
 1192         TUNABLE_INT_FETCH("hw.cxgbe.dflags", &sc->debug_flags);
 1193 
 1194         if ((pci_get_device(dev) & 0xff00) == 0x5400)
 1195                 t5_attribute_workaround(dev);
 1196         pci_enable_busmaster(dev);
 1197         if (pci_find_cap(dev, PCIY_EXPRESS, &i) == 0) {
 1198                 uint32_t v;
 1199 
 1200                 pci_set_max_read_req(dev, 4096);
 1201                 v = pci_read_config(dev, i + PCIER_DEVICE_CTL, 2);
 1202                 sc->params.pci.mps = 128 << ((v & PCIEM_CTL_MAX_PAYLOAD) >> 5);
 1203                 if (pcie_relaxed_ordering == 0 &&
 1204                     (v & PCIEM_CTL_RELAXED_ORD_ENABLE) != 0) {
 1205                         v &= ~PCIEM_CTL_RELAXED_ORD_ENABLE;
 1206                         pci_write_config(dev, i + PCIER_DEVICE_CTL, v, 2);
 1207                 } else if (pcie_relaxed_ordering == 1 &&
 1208                     (v & PCIEM_CTL_RELAXED_ORD_ENABLE) == 0) {
 1209                         v |= PCIEM_CTL_RELAXED_ORD_ENABLE;
 1210                         pci_write_config(dev, i + PCIER_DEVICE_CTL, v, 2);
 1211                 }
 1212         }
 1213 
 1214         sc->sge_gts_reg = MYPF_REG(A_SGE_PF_GTS);
 1215         sc->sge_kdoorbell_reg = MYPF_REG(A_SGE_PF_KDOORBELL);
 1216         sc->traceq = -1;
 1217         mtx_init(&sc->ifp_lock, sc->ifp_lockname, 0, MTX_DEF);
 1218         snprintf(sc->ifp_lockname, sizeof(sc->ifp_lockname), "%s tracer",
 1219             device_get_nameunit(dev));
 1220 
 1221         snprintf(sc->lockname, sizeof(sc->lockname), "%s",
 1222             device_get_nameunit(dev));
 1223         mtx_init(&sc->sc_lock, sc->lockname, 0, MTX_DEF);
 1224         t4_add_adapter(sc);
 1225 
 1226         mtx_init(&sc->sfl_lock, "starving freelists", 0, MTX_DEF);
 1227         TAILQ_INIT(&sc->sfl);
 1228         callout_init_mtx(&sc->sfl_callout, &sc->sfl_lock, 0);
 1229 
 1230         mtx_init(&sc->reg_lock, "indirect register access", 0, MTX_DEF);
 1231 
 1232         sc->policy = NULL;
 1233         rw_init(&sc->policy_lock, "connection offload policy");
 1234 
 1235         callout_init(&sc->ktls_tick, 1);
 1236 
 1237         callout_init(&sc->cal_callout, 1);
 1238 
 1239         refcount_init(&sc->vxlan_refcount, 0);
 1240 
 1241         TASK_INIT(&sc->reset_task, 0, reset_adapter_task, sc);
 1242         TASK_INIT(&sc->fatal_error_task, 0, fatal_error_task, sc);
 1243 
 1244         sc->ctrlq_oid = SYSCTL_ADD_NODE(&sc->ctx,
 1245             SYSCTL_CHILDREN(device_get_sysctl_tree(sc->dev)), OID_AUTO, "ctrlq",
 1246             CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "control queues");
 1247         sc->fwq_oid = SYSCTL_ADD_NODE(&sc->ctx,
 1248             SYSCTL_CHILDREN(device_get_sysctl_tree(sc->dev)), OID_AUTO, "fwq",
 1249             CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "firmware event queue");
 1250 
 1251         rc = t4_map_bars_0_and_4(sc);
 1252         if (rc != 0)
 1253                 goto done; /* error message displayed already */
 1254 
 1255         memset(sc->chan_map, 0xff, sizeof(sc->chan_map));
 1256 
 1257         /* Prepare the adapter for operation. */
 1258         buf = malloc(PAGE_SIZE, M_CXGBE, M_ZERO | M_WAITOK);
 1259         rc = -t4_prep_adapter(sc, buf);
 1260         free(buf, M_CXGBE);
 1261         if (rc != 0) {
 1262                 device_printf(dev, "failed to prepare adapter: %d.\n", rc);
 1263                 goto done;
 1264         }
 1265 
 1266         /*
 1267          * This is the real PF# to which we're attaching.  Works from within PCI
 1268          * passthrough environments too, where pci_get_function() could return a
 1269          * different PF# depending on the passthrough configuration.  We need to
 1270          * use the real PF# in all our communication with the firmware.
 1271          */
 1272         j = t4_read_reg(sc, A_PL_WHOAMI);
 1273         sc->pf = chip_id(sc) <= CHELSIO_T5 ? G_SOURCEPF(j) : G_T6_SOURCEPF(j);
 1274         sc->mbox = sc->pf;
 1275 
 1276         t4_init_devnames(sc);
 1277         if (sc->names == NULL) {
 1278                 rc = ENOTSUP;
 1279                 goto done; /* error message displayed already */
 1280         }
 1281 
 1282         /*
 1283          * Do this really early, with the memory windows set up even before the
 1284          * character device.  The userland tool's register i/o and mem read
 1285          * will work even in "recovery mode".
 1286          */
 1287         setup_memwin(sc);
 1288         if (t4_init_devlog_params(sc, 0) == 0)
 1289                 fixup_devlog_params(sc);
 1290         make_dev_args_init(&mda);
 1291         mda.mda_devsw = &t4_cdevsw;
 1292         mda.mda_uid = UID_ROOT;
 1293         mda.mda_gid = GID_WHEEL;
 1294         mda.mda_mode = 0600;
 1295         mda.mda_si_drv1 = sc;
 1296         rc = make_dev_s(&mda, &sc->cdev, "%s", device_get_nameunit(dev));
 1297         if (rc != 0)
 1298                 device_printf(dev, "failed to create nexus char device: %d.\n",
 1299                     rc);
 1300 
 1301         /* Go no further if recovery mode has been requested. */
 1302         if (TUNABLE_INT_FETCH("hw.cxgbe.sos", &i) && i != 0) {
 1303                 device_printf(dev, "recovery mode.\n");
 1304                 goto done;
 1305         }
 1306 
 1307 #if defined(__i386__)
 1308         if ((cpu_feature & CPUID_CX8) == 0) {
 1309                 device_printf(dev, "64 bit atomics not available.\n");
 1310                 rc = ENOTSUP;
 1311                 goto done;
 1312         }
 1313 #endif
 1314 
 1315         /* Contact the firmware and try to become the master driver. */
 1316         rc = contact_firmware(sc);
 1317         if (rc != 0)
 1318                 goto done; /* error message displayed already */
 1319         MPASS(sc->flags & FW_OK);
 1320 
 1321         rc = get_params__pre_init(sc);
 1322         if (rc != 0)
 1323                 goto done; /* error message displayed already */
 1324 
 1325         if (sc->flags & MASTER_PF) {
 1326                 rc = partition_resources(sc);
 1327                 if (rc != 0)
 1328                         goto done; /* error message displayed already */
 1329                 t4_intr_clear(sc);
 1330         }
 1331 
 1332         rc = get_params__post_init(sc);
 1333         if (rc != 0)
 1334                 goto done; /* error message displayed already */
 1335 
 1336         rc = set_params__post_init(sc);
 1337         if (rc != 0)
 1338                 goto done; /* error message displayed already */
 1339 
 1340         rc = t4_map_bar_2(sc);
 1341         if (rc != 0)
 1342                 goto done; /* error message displayed already */
 1343 
 1344         rc = t4_create_dma_tag(sc);
 1345         if (rc != 0)
 1346                 goto done; /* error message displayed already */
 1347 
 1348         /*
 1349          * First pass over all the ports - allocate VIs and initialize some
 1350          * basic parameters like mac address, port type, etc.
 1351          */
 1352         for_each_port(sc, i) {
 1353                 struct port_info *pi;
 1354 
 1355                 pi = malloc(sizeof(*pi), M_CXGBE, M_ZERO | M_WAITOK);
 1356                 sc->port[i] = pi;
 1357 
 1358                 /* These must be set before t4_port_init */
 1359                 pi->adapter = sc;
 1360                 pi->port_id = i;
 1361                 /*
 1362                  * XXX: vi[0] is special so we can't delay this allocation until
 1363                  * pi->nvi's final value is known.
 1364                  */
 1365                 pi->vi = malloc(sizeof(struct vi_info) * t4_num_vis, M_CXGBE,
 1366                     M_ZERO | M_WAITOK);
 1367 
 1368                 /*
 1369                  * Allocate the "main" VI and initialize parameters
 1370                  * like mac addr.
 1371                  */
 1372                 rc = -t4_port_init(sc, sc->mbox, sc->pf, 0, i);
 1373                 if (rc != 0) {
 1374                         device_printf(dev, "unable to initialize port %d: %d\n",
 1375                             i, rc);
 1376                         free(pi->vi, M_CXGBE);
 1377                         free(pi, M_CXGBE);
 1378                         sc->port[i] = NULL;
 1379                         goto done;
 1380                 }
 1381 
 1382                 if (is_bt(pi->port_type))
 1383                         setbit(&sc->bt_map, pi->tx_chan);
 1384                 else
 1385                         MPASS(!isset(&sc->bt_map, pi->tx_chan));
 1386 
 1387                 snprintf(pi->lockname, sizeof(pi->lockname), "%sp%d",
 1388                     device_get_nameunit(dev), i);
 1389                 mtx_init(&pi->pi_lock, pi->lockname, 0, MTX_DEF);
 1390                 sc->chan_map[pi->tx_chan] = i;
 1391 
 1392                 /*
 1393                  * The MPS counter for FCS errors doesn't work correctly on the
 1394                  * T6 so we use the MAC counter here.  Which MAC is in use
 1395                  * depends on the link settings which will be known when the
 1396                  * link comes up.
 1397                  */
 1398                 if (is_t6(sc)) {
 1399                         pi->fcs_reg = -1;
 1400                 } else if (is_t4(sc)) {
 1401                         pi->fcs_reg = PORT_REG(pi->tx_chan,
 1402                             A_MPS_PORT_STAT_RX_PORT_CRC_ERROR_L);
 1403                 } else {
 1404                         pi->fcs_reg = T5_PORT_REG(pi->tx_chan,
 1405                             A_MPS_PORT_STAT_RX_PORT_CRC_ERROR_L);
 1406                 }
 1407                 pi->fcs_base = 0;
 1408 
 1409                 /* All VIs on this port share this media. */
 1410                 ifmedia_init(&pi->media, IFM_IMASK, cxgbe_media_change,
 1411                     cxgbe_media_status);
 1412 
 1413                 PORT_LOCK(pi);
 1414                 init_link_config(pi);
 1415                 fixup_link_config(pi);
 1416                 build_medialist(pi);
 1417                 if (fixed_ifmedia(pi))
 1418                         pi->flags |= FIXED_IFMEDIA;
 1419                 PORT_UNLOCK(pi);
 1420 
 1421                 pi->dev = device_add_child(dev, sc->names->ifnet_name,
 1422                     t4_ifnet_unit(sc, pi));
 1423                 if (pi->dev == NULL) {
 1424                         device_printf(dev,
 1425                             "failed to add device for port %d.\n", i);
 1426                         rc = ENXIO;
 1427                         goto done;
 1428                 }
 1429                 pi->vi[0].dev = pi->dev;
 1430                 device_set_softc(pi->dev, pi);
 1431         }
 1432 
 1433         /*
 1434          * Interrupt type, # of interrupts, # of rx/tx queues, etc.
 1435          */
 1436         nports = sc->params.nports;
 1437         rc = cfg_itype_and_nqueues(sc, &iaq);
 1438         if (rc != 0)
 1439                 goto done; /* error message displayed already */
 1440 
 1441         num_vis = iaq.num_vis;
 1442         sc->intr_type = iaq.intr_type;
 1443         sc->intr_count = iaq.nirq;
 1444 
 1445         s = &sc->sge;
 1446         s->nrxq = nports * iaq.nrxq;
 1447         s->ntxq = nports * iaq.ntxq;
 1448         if (num_vis > 1) {
 1449                 s->nrxq += nports * (num_vis - 1) * iaq.nrxq_vi;
 1450                 s->ntxq += nports * (num_vis - 1) * iaq.ntxq_vi;
 1451         }
 1452         s->neq = s->ntxq + s->nrxq;     /* the free list in an rxq is an eq */
 1453         s->neq += nports;               /* ctrl queues: 1 per port */
 1454         s->niq = s->nrxq + 1;           /* 1 extra for firmware event queue */
 1455 #if defined(TCP_OFFLOAD) || defined(RATELIMIT)
 1456         if (is_offload(sc) || is_ethoffload(sc)) {
 1457                 s->nofldtxq = nports * iaq.nofldtxq;
 1458                 if (num_vis > 1)
 1459                         s->nofldtxq += nports * (num_vis - 1) * iaq.nofldtxq_vi;
 1460                 s->neq += s->nofldtxq;
 1461 
 1462                 s->ofld_txq = malloc(s->nofldtxq * sizeof(struct sge_ofld_txq),
 1463                     M_CXGBE, M_ZERO | M_WAITOK);
 1464         }
 1465 #endif
 1466 #ifdef TCP_OFFLOAD
 1467         if (is_offload(sc)) {
 1468                 s->nofldrxq = nports * iaq.nofldrxq;
 1469                 if (num_vis > 1)
 1470                         s->nofldrxq += nports * (num_vis - 1) * iaq.nofldrxq_vi;
 1471                 s->neq += s->nofldrxq;  /* free list */
 1472                 s->niq += s->nofldrxq;
 1473 
 1474                 s->ofld_rxq = malloc(s->nofldrxq * sizeof(struct sge_ofld_rxq),
 1475                     M_CXGBE, M_ZERO | M_WAITOK);
 1476         }
 1477 #endif
 1478 #ifdef DEV_NETMAP
 1479         s->nnmrxq = 0;
 1480         s->nnmtxq = 0;
 1481         if (t4_native_netmap & NN_MAIN_VI) {
 1482                 s->nnmrxq += nports * iaq.nnmrxq;
 1483                 s->nnmtxq += nports * iaq.nnmtxq;
 1484         }
 1485         if (num_vis > 1 && t4_native_netmap & NN_EXTRA_VI) {
 1486                 s->nnmrxq += nports * (num_vis - 1) * iaq.nnmrxq_vi;
 1487                 s->nnmtxq += nports * (num_vis - 1) * iaq.nnmtxq_vi;
 1488         }
 1489         s->neq += s->nnmtxq + s->nnmrxq;
 1490         s->niq += s->nnmrxq;
 1491 
 1492         s->nm_rxq = malloc(s->nnmrxq * sizeof(struct sge_nm_rxq),
 1493             M_CXGBE, M_ZERO | M_WAITOK);
 1494         s->nm_txq = malloc(s->nnmtxq * sizeof(struct sge_nm_txq),
 1495             M_CXGBE, M_ZERO | M_WAITOK);
 1496 #endif
 1497         MPASS(s->niq <= s->iqmap_sz);
 1498         MPASS(s->neq <= s->eqmap_sz);
 1499 
 1500         s->ctrlq = malloc(nports * sizeof(struct sge_wrq), M_CXGBE,
 1501             M_ZERO | M_WAITOK);
 1502         s->rxq = malloc(s->nrxq * sizeof(struct sge_rxq), M_CXGBE,
 1503             M_ZERO | M_WAITOK);
 1504         s->txq = malloc(s->ntxq * sizeof(struct sge_txq), M_CXGBE,
 1505             M_ZERO | M_WAITOK);
 1506         s->iqmap = malloc(s->iqmap_sz * sizeof(struct sge_iq *), M_CXGBE,
 1507             M_ZERO | M_WAITOK);
 1508         s->eqmap = malloc(s->eqmap_sz * sizeof(struct sge_eq *), M_CXGBE,
 1509             M_ZERO | M_WAITOK);
 1510 
 1511         sc->irq = malloc(sc->intr_count * sizeof(struct irq), M_CXGBE,
 1512             M_ZERO | M_WAITOK);
 1513 
 1514         t4_init_l2t(sc, M_WAITOK);
 1515         t4_init_smt(sc, M_WAITOK);
 1516         t4_init_tx_sched(sc);
 1517         t4_init_atid_table(sc);
 1518 #ifdef RATELIMIT
 1519         t4_init_etid_table(sc);
 1520 #endif
 1521 #ifdef INET6
 1522         t4_init_clip_table(sc);
 1523 #endif
 1524         if (sc->vres.key.size != 0)
 1525                 sc->key_map = vmem_create("T4TLS key map", sc->vres.key.start,
 1526                     sc->vres.key.size, 32, 0, M_FIRSTFIT | M_WAITOK);
 1527 
 1528         /*
 1529          * Second pass over the ports.  This time we know the number of rx and
 1530          * tx queues that each port should get.
 1531          */
 1532         rqidx = tqidx = 0;
 1533 #if defined(TCP_OFFLOAD) || defined(RATELIMIT)
 1534         ofld_tqidx = 0;
 1535 #endif
 1536 #ifdef TCP_OFFLOAD
 1537         ofld_rqidx = 0;
 1538 #endif
 1539 #ifdef DEV_NETMAP
 1540         nm_rqidx = nm_tqidx = 0;
 1541 #endif
 1542         for_each_port(sc, i) {
 1543                 struct port_info *pi = sc->port[i];
 1544                 struct vi_info *vi;
 1545 
 1546                 if (pi == NULL)
 1547                         continue;
 1548 
 1549                 pi->nvi = num_vis;
 1550                 for_each_vi(pi, j, vi) {
 1551                         vi->pi = pi;
 1552                         vi->adapter = sc;
 1553                         vi->first_intr = -1;
 1554                         vi->qsize_rxq = t4_qsize_rxq;
 1555                         vi->qsize_txq = t4_qsize_txq;
 1556 
 1557                         vi->first_rxq = rqidx;
 1558                         vi->first_txq = tqidx;
 1559                         vi->tmr_idx = t4_tmr_idx;
 1560                         vi->pktc_idx = t4_pktc_idx;
 1561                         vi->nrxq = j == 0 ? iaq.nrxq : iaq.nrxq_vi;
 1562                         vi->ntxq = j == 0 ? iaq.ntxq : iaq.ntxq_vi;
 1563 
 1564                         rqidx += vi->nrxq;
 1565                         tqidx += vi->ntxq;
 1566 
 1567                         if (j == 0 && vi->ntxq > 1)
 1568                                 vi->rsrv_noflowq = t4_rsrv_noflowq ? 1 : 0;
 1569                         else
 1570                                 vi->rsrv_noflowq = 0;
 1571 
 1572 #if defined(TCP_OFFLOAD) || defined(RATELIMIT)
 1573                         vi->first_ofld_txq = ofld_tqidx;
 1574                         vi->nofldtxq = j == 0 ? iaq.nofldtxq : iaq.nofldtxq_vi;
 1575                         ofld_tqidx += vi->nofldtxq;
 1576 #endif
 1577 #ifdef TCP_OFFLOAD
 1578                         vi->ofld_tmr_idx = t4_tmr_idx_ofld;
 1579                         vi->ofld_pktc_idx = t4_pktc_idx_ofld;
 1580                         vi->first_ofld_rxq = ofld_rqidx;
 1581                         vi->nofldrxq = j == 0 ? iaq.nofldrxq : iaq.nofldrxq_vi;
 1582 
 1583                         ofld_rqidx += vi->nofldrxq;
 1584 #endif
 1585 #ifdef DEV_NETMAP
 1586                         vi->first_nm_rxq = nm_rqidx;
 1587                         vi->first_nm_txq = nm_tqidx;
 1588                         if (j == 0) {
 1589                                 vi->nnmrxq = iaq.nnmrxq;
 1590                                 vi->nnmtxq = iaq.nnmtxq;
 1591                         } else {
 1592                                 vi->nnmrxq = iaq.nnmrxq_vi;
 1593                                 vi->nnmtxq = iaq.nnmtxq_vi;
 1594                         }
 1595                         nm_rqidx += vi->nnmrxq;
 1596                         nm_tqidx += vi->nnmtxq;
 1597 #endif
 1598                 }
 1599         }
 1600 
 1601         rc = t4_setup_intr_handlers(sc);
 1602         if (rc != 0) {
 1603                 device_printf(dev,
 1604                     "failed to setup interrupt handlers: %d\n", rc);
 1605                 goto done;
 1606         }
 1607 
 1608         rc = bus_generic_probe(dev);
 1609         if (rc != 0) {
 1610                 device_printf(dev, "failed to probe child drivers: %d\n", rc);
 1611                 goto done;
 1612         }
 1613 
 1614         /*
 1615          * Ensure thread-safe mailbox access (in debug builds).
 1616          *
 1617          * So far this was the only thread accessing the mailbox but various
 1618          * ifnets and sysctls are about to be created and their handlers/ioctls
 1619          * will access the mailbox from different threads.
 1620          */
 1621         sc->flags |= CHK_MBOX_ACCESS;
 1622 
 1623         rc = bus_generic_attach(dev);
 1624         if (rc != 0) {
 1625                 device_printf(dev,
 1626                     "failed to attach all child ports: %d\n", rc);
 1627                 goto done;
 1628         }
 1629         t4_calibration_start(sc);
 1630 
 1631         device_printf(dev,
 1632             "PCIe gen%d x%d, %d ports, %d %s interrupt%s, %d eq, %d iq\n",
 1633             sc->params.pci.speed, sc->params.pci.width, sc->params.nports,
 1634             sc->intr_count, sc->intr_type == INTR_MSIX ? "MSI-X" :
 1635             (sc->intr_type == INTR_MSI ? "MSI" : "INTx"),
 1636             sc->intr_count > 1 ? "s" : "", sc->sge.neq, sc->sge.niq);
 1637 
 1638         t4_set_desc(sc);
 1639 
 1640         notify_siblings(dev, 0);
 1641 
 1642 done:
 1643         if (rc != 0 && sc->cdev) {
 1644                 /* cdev was created and so cxgbetool works; recover that way. */
 1645                 device_printf(dev,
 1646                     "error during attach, adapter is now in recovery mode.\n");
 1647                 rc = 0;
 1648         }
 1649 
 1650         if (rc != 0)
 1651                 t4_detach_common(dev);
 1652         else
 1653                 t4_sysctls(sc);
 1654 
 1655         return (rc);
 1656 }
 1657 
 1658 static int
 1659 t4_child_location(device_t bus, device_t dev, struct sbuf *sb)
 1660 {
 1661         struct adapter *sc;
 1662         struct port_info *pi;
 1663         int i;
 1664 
 1665         sc = device_get_softc(bus);
 1666         for_each_port(sc, i) {
 1667                 pi = sc->port[i];
 1668                 if (pi != NULL && pi->dev == dev) {
 1669                         sbuf_printf(sb, "port=%d", pi->port_id);
 1670                         break;
 1671                 }
 1672         }
 1673         return (0);
 1674 }
 1675 
 1676 static int
 1677 t4_ready(device_t dev)
 1678 {
 1679         struct adapter *sc;
 1680 
 1681         sc = device_get_softc(dev);
 1682         if (sc->flags & FW_OK)
 1683                 return (0);
 1684         return (ENXIO);
 1685 }
 1686 
 1687 static int
 1688 t4_read_port_device(device_t dev, int port, device_t *child)
 1689 {
 1690         struct adapter *sc;
 1691         struct port_info *pi;
 1692 
 1693         sc = device_get_softc(dev);
 1694         if (port < 0 || port >= MAX_NPORTS)
 1695                 return (EINVAL);
 1696         pi = sc->port[port];
 1697         if (pi == NULL || pi->dev == NULL)
 1698                 return (ENXIO);
 1699         *child = pi->dev;
 1700         return (0);
 1701 }
 1702 
 1703 static int
 1704 notify_siblings(device_t dev, int detaching)
 1705 {
 1706         device_t sibling;
 1707         int error, i;
 1708 
 1709         error = 0;
 1710         for (i = 0; i < PCI_FUNCMAX; i++) {
 1711                 if (i == pci_get_function(dev))
 1712                         continue;
 1713                 sibling = pci_find_dbsf(pci_get_domain(dev), pci_get_bus(dev),
 1714                     pci_get_slot(dev), i);
 1715                 if (sibling == NULL || !device_is_attached(sibling))
 1716                         continue;
 1717                 if (detaching)
 1718                         error = T4_DETACH_CHILD(sibling);
 1719                 else
 1720                         (void)T4_ATTACH_CHILD(sibling);
 1721                 if (error)
 1722                         break;
 1723         }
 1724         return (error);
 1725 }
 1726 
 1727 /*
 1728  * Idempotent
 1729  */
 1730 static int
 1731 t4_detach(device_t dev)
 1732 {
 1733         int rc;
 1734 
 1735         rc = notify_siblings(dev, 1);
 1736         if (rc) {
 1737                 device_printf(dev,
 1738                     "failed to detach sibling devices: %d\n", rc);
 1739                 return (rc);
 1740         }
 1741 
 1742         return (t4_detach_common(dev));
 1743 }
 1744 
 1745 int
 1746 t4_detach_common(device_t dev)
 1747 {
 1748         struct adapter *sc;
 1749         struct port_info *pi;
 1750         int i, rc;
 1751 
 1752         sc = device_get_softc(dev);
 1753 
 1754 #ifdef TCP_OFFLOAD
 1755         rc = t4_deactivate_all_uld(sc);
 1756         if (rc) {
 1757                 device_printf(dev,
 1758                     "failed to detach upper layer drivers: %d\n", rc);
 1759                 return (rc);
 1760         }
 1761 #endif
 1762 
 1763         if (sc->cdev) {
 1764                 destroy_dev(sc->cdev);
 1765                 sc->cdev = NULL;
 1766         }
 1767 
 1768         sx_xlock(&t4_list_lock);
 1769         SLIST_REMOVE(&t4_list, sc, adapter, link);
 1770         sx_xunlock(&t4_list_lock);
 1771 
 1772         sc->flags &= ~CHK_MBOX_ACCESS;
 1773         if (sc->flags & FULL_INIT_DONE) {
 1774                 if (!(sc->flags & IS_VF))
 1775                         t4_intr_disable(sc);
 1776         }
 1777 
 1778         if (device_is_attached(dev)) {
 1779                 rc = bus_generic_detach(dev);
 1780                 if (rc) {
 1781                         device_printf(dev,
 1782                             "failed to detach child devices: %d\n", rc);
 1783                         return (rc);
 1784                 }
 1785         }
 1786 
 1787         for (i = 0; i < sc->intr_count; i++)
 1788                 t4_free_irq(sc, &sc->irq[i]);
 1789 
 1790         if ((sc->flags & (IS_VF | FW_OK)) == FW_OK)
 1791                 t4_free_tx_sched(sc);
 1792 
 1793         for (i = 0; i < MAX_NPORTS; i++) {
 1794                 pi = sc->port[i];
 1795                 if (pi) {
 1796                         t4_free_vi(sc, sc->mbox, sc->pf, 0, pi->vi[0].viid);
 1797                         if (pi->dev)
 1798                                 device_delete_child(dev, pi->dev);
 1799 
 1800                         mtx_destroy(&pi->pi_lock);
 1801                         free(pi->vi, M_CXGBE);
 1802                         free(pi, M_CXGBE);
 1803                 }
 1804         }
 1805         callout_stop(&sc->cal_callout);
 1806         callout_drain(&sc->cal_callout);
 1807         device_delete_children(dev);
 1808         sysctl_ctx_free(&sc->ctx);
 1809         adapter_full_uninit(sc);
 1810 
 1811         if ((sc->flags & (IS_VF | FW_OK)) == FW_OK)
 1812                 t4_fw_bye(sc, sc->mbox);
 1813 
 1814         if (sc->intr_type == INTR_MSI || sc->intr_type == INTR_MSIX)
 1815                 pci_release_msi(dev);
 1816 
 1817         if (sc->regs_res)
 1818                 bus_release_resource(dev, SYS_RES_MEMORY, sc->regs_rid,
 1819                     sc->regs_res);
 1820 
 1821         if (sc->udbs_res)
 1822                 bus_release_resource(dev, SYS_RES_MEMORY, sc->udbs_rid,
 1823                     sc->udbs_res);
 1824 
 1825         if (sc->msix_res)
 1826                 bus_release_resource(dev, SYS_RES_MEMORY, sc->msix_rid,
 1827                     sc->msix_res);
 1828 
 1829         if (sc->l2t)
 1830                 t4_free_l2t(sc->l2t);
 1831         if (sc->smt)
 1832                 t4_free_smt(sc->smt);
 1833         t4_free_atid_table(sc);
 1834 #ifdef RATELIMIT
 1835         t4_free_etid_table(sc);
 1836 #endif
 1837         if (sc->key_map)
 1838                 vmem_destroy(sc->key_map);
 1839 #ifdef INET6
 1840         t4_destroy_clip_table(sc);
 1841 #endif
 1842 
 1843 #if defined(TCP_OFFLOAD) || defined(RATELIMIT)
 1844         free(sc->sge.ofld_txq, M_CXGBE);
 1845 #endif
 1846 #ifdef TCP_OFFLOAD
 1847         free(sc->sge.ofld_rxq, M_CXGBE);
 1848 #endif
 1849 #ifdef DEV_NETMAP
 1850         free(sc->sge.nm_rxq, M_CXGBE);
 1851         free(sc->sge.nm_txq, M_CXGBE);
 1852 #endif
 1853         free(sc->irq, M_CXGBE);
 1854         free(sc->sge.rxq, M_CXGBE);
 1855         free(sc->sge.txq, M_CXGBE);
 1856         free(sc->sge.ctrlq, M_CXGBE);
 1857         free(sc->sge.iqmap, M_CXGBE);
 1858         free(sc->sge.eqmap, M_CXGBE);
 1859         free(sc->tids.ftid_tab, M_CXGBE);
 1860         free(sc->tids.hpftid_tab, M_CXGBE);
 1861         free_hftid_hash(&sc->tids);
 1862         free(sc->tids.tid_tab, M_CXGBE);
 1863         t4_destroy_dma_tag(sc);
 1864 
 1865         callout_drain(&sc->ktls_tick);
 1866         callout_drain(&sc->sfl_callout);
 1867         if (mtx_initialized(&sc->tids.ftid_lock)) {
 1868                 mtx_destroy(&sc->tids.ftid_lock);
 1869                 cv_destroy(&sc->tids.ftid_cv);
 1870         }
 1871         if (mtx_initialized(&sc->tids.atid_lock))
 1872                 mtx_destroy(&sc->tids.atid_lock);
 1873         if (mtx_initialized(&sc->ifp_lock))
 1874                 mtx_destroy(&sc->ifp_lock);
 1875 
 1876         if (rw_initialized(&sc->policy_lock)) {
 1877                 rw_destroy(&sc->policy_lock);
 1878 #ifdef TCP_OFFLOAD
 1879                 if (sc->policy != NULL)
 1880                         free_offload_policy(sc->policy);
 1881 #endif
 1882         }
 1883 
 1884         for (i = 0; i < NUM_MEMWIN; i++) {
 1885                 struct memwin *mw = &sc->memwin[i];
 1886 
 1887                 if (rw_initialized(&mw->mw_lock))
 1888                         rw_destroy(&mw->mw_lock);
 1889         }
 1890 
 1891         mtx_destroy(&sc->sfl_lock);
 1892         mtx_destroy(&sc->reg_lock);
 1893         mtx_destroy(&sc->sc_lock);
 1894 
 1895         bzero(sc, sizeof(*sc));
 1896 
 1897         return (0);
 1898 }
 1899 
 1900 static inline bool
 1901 ok_to_reset(struct adapter *sc)
 1902 {
 1903         struct tid_info *t = &sc->tids;
 1904         struct port_info *pi;
 1905         struct vi_info *vi;
 1906         int i, j;
 1907         int caps = IFCAP_TOE | IFCAP_NETMAP | IFCAP_TXRTLMT;
 1908 
 1909         if (is_t6(sc))
 1910                 caps |= IFCAP_TXTLS;
 1911 
 1912         ASSERT_SYNCHRONIZED_OP(sc);
 1913         MPASS(!(sc->flags & IS_VF));
 1914 
 1915         for_each_port(sc, i) {
 1916                 pi = sc->port[i];
 1917                 for_each_vi(pi, j, vi) {
 1918                         if (vi->ifp->if_capenable & caps)
 1919                                 return (false);
 1920                 }
 1921         }
 1922 
 1923         if (atomic_load_int(&t->tids_in_use) > 0)
 1924                 return (false);
 1925         if (atomic_load_int(&t->stids_in_use) > 0)
 1926                 return (false);
 1927         if (atomic_load_int(&t->atids_in_use) > 0)
 1928                 return (false);
 1929         if (atomic_load_int(&t->ftids_in_use) > 0)
 1930                 return (false);
 1931         if (atomic_load_int(&t->hpftids_in_use) > 0)
 1932                 return (false);
 1933         if (atomic_load_int(&t->etids_in_use) > 0)
 1934                 return (false);
 1935 
 1936         return (true);
 1937 }
 1938 
 1939 static inline int
 1940 stop_adapter(struct adapter *sc)
 1941 {
 1942         if (atomic_testandset_int(&sc->error_flags, ilog2(ADAP_STOPPED)))
 1943                 return (1);             /* Already stopped. */
 1944         return (t4_shutdown_adapter(sc));
 1945 }
 1946 
 1947 static int
 1948 t4_suspend(device_t dev)
 1949 {
 1950         struct adapter *sc = device_get_softc(dev);
 1951         struct port_info *pi;
 1952         struct vi_info *vi;
 1953         struct ifnet *ifp;
 1954         struct sge_rxq *rxq;
 1955         struct sge_txq *txq;
 1956         struct sge_wrq *wrq;
 1957 #ifdef TCP_OFFLOAD
 1958         struct sge_ofld_rxq *ofld_rxq;
 1959 #endif
 1960 #if defined(TCP_OFFLOAD) || defined(RATELIMIT)
 1961         struct sge_ofld_txq *ofld_txq;
 1962 #endif
 1963         int rc, i, j, k;
 1964 
 1965         CH_ALERT(sc, "suspend requested\n");
 1966 
 1967         rc = begin_synchronized_op(sc, NULL, SLEEP_OK, "t4sus");
 1968         if (rc != 0)
 1969                 return (ENXIO);
 1970 
 1971         /* XXX: Can the kernel call suspend repeatedly without resume? */
 1972         MPASS(!hw_off_limits(sc));
 1973 
 1974         if (!ok_to_reset(sc)) {
 1975                 /* XXX: should list what resource is preventing suspend. */
 1976                 CH_ERR(sc, "not safe to suspend.\n");
 1977                 rc = EBUSY;
 1978                 goto done;
 1979         }
 1980 
 1981         /* No more DMA or interrupts. */
 1982         stop_adapter(sc);
 1983 
 1984         /* Quiesce all activity. */
 1985         for_each_port(sc, i) {
 1986                 pi = sc->port[i];
 1987                 pi->vxlan_tcam_entry = false;
 1988 
 1989                 PORT_LOCK(pi);
 1990                 if (pi->up_vis > 0) {
 1991                         /*
 1992                          * t4_shutdown_adapter has already shut down all the
 1993                          * PHYs but it also disables interrupts and DMA so there
 1994                          * won't be a link interrupt.  So we update the state
 1995                          * manually and inform the kernel.
 1996                          */
 1997                         pi->link_cfg.link_ok = false;
 1998                         t4_os_link_changed(pi);
 1999                 }
 2000                 PORT_UNLOCK(pi);
 2001 
 2002                 for_each_vi(pi, j, vi) {
 2003                         vi->xact_addr_filt = -1;
 2004                         mtx_lock(&vi->tick_mtx);
 2005                         vi->flags |= VI_SKIP_STATS;
 2006                         mtx_unlock(&vi->tick_mtx);
 2007                         if (!(vi->flags & VI_INIT_DONE))
 2008                                 continue;
 2009 
 2010                         ifp = vi->ifp;
 2011                         if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
 2012                                 mtx_lock(&vi->tick_mtx);
 2013                                 callout_stop(&vi->tick);
 2014                                 mtx_unlock(&vi->tick_mtx);
 2015                                 callout_drain(&vi->tick);
 2016                         }
 2017 
 2018                         /*
 2019                          * Note that the HW is not available.
 2020                          */
 2021                         for_each_txq(vi, k, txq) {
 2022                                 TXQ_LOCK(txq);
 2023                                 txq->eq.flags &= ~(EQ_ENABLED | EQ_HW_ALLOCATED);
 2024                                 TXQ_UNLOCK(txq);
 2025                         }
 2026 #if defined(TCP_OFFLOAD) || defined(RATELIMIT)
 2027                         for_each_ofld_txq(vi, k, ofld_txq) {
 2028                                 ofld_txq->wrq.eq.flags &= ~EQ_HW_ALLOCATED;
 2029                         }
 2030 #endif
 2031                         for_each_rxq(vi, k, rxq) {
 2032                                 rxq->iq.flags &= ~IQ_HW_ALLOCATED;
 2033                         }
 2034 #if defined(TCP_OFFLOAD)
 2035                         for_each_ofld_rxq(vi, k, ofld_rxq) {
 2036                                 ofld_rxq->iq.flags &= ~IQ_HW_ALLOCATED;
 2037                         }
 2038 #endif
 2039 
 2040                         quiesce_vi(vi);
 2041                 }
 2042 
 2043                 if (sc->flags & FULL_INIT_DONE) {
 2044                         /* Control queue */
 2045                         wrq = &sc->sge.ctrlq[i];
 2046                         wrq->eq.flags &= ~EQ_HW_ALLOCATED;
 2047                         quiesce_wrq(wrq);
 2048                 }
 2049         }
 2050         if (sc->flags & FULL_INIT_DONE) {
 2051                 /* Firmware event queue */
 2052                 sc->sge.fwq.flags &= ~IQ_HW_ALLOCATED;
 2053                 quiesce_iq_fl(sc, &sc->sge.fwq, NULL);
 2054         }
 2055 
 2056         /* Stop calibration */
 2057         callout_stop(&sc->cal_callout);
 2058         callout_drain(&sc->cal_callout);
 2059 
 2060         /* Mark the adapter totally off limits. */
 2061         mtx_lock(&sc->reg_lock);
 2062         atomic_set_int(&sc->error_flags, HW_OFF_LIMITS);
 2063         sc->flags &= ~(FW_OK | MASTER_PF);
 2064         sc->reset_thread = NULL;
 2065         mtx_unlock(&sc->reg_lock);
 2066 
 2067         if (t4_clock_gate_on_suspend) {
 2068                 t4_set_reg_field(sc, A_PMU_PART_CG_PWRMODE, F_MA_PART_CGEN |
 2069                     F_LE_PART_CGEN | F_EDC1_PART_CGEN | F_EDC0_PART_CGEN |
 2070                     F_TP_PART_CGEN | F_PDP_PART_CGEN | F_SGE_PART_CGEN, 0);
 2071         }
 2072 
 2073         CH_ALERT(sc, "suspend completed.\n");
 2074 done:
 2075         end_synchronized_op(sc, 0);
 2076         return (rc);
 2077 }
 2078 
 2079 struct adapter_pre_reset_state {
 2080         u_int flags;
 2081         uint16_t nbmcaps;
 2082         uint16_t linkcaps;
 2083         uint16_t switchcaps;
 2084         uint16_t niccaps;
 2085         uint16_t toecaps;
 2086         uint16_t rdmacaps;
 2087         uint16_t cryptocaps;
 2088         uint16_t iscsicaps;
 2089         uint16_t fcoecaps;
 2090 
 2091         u_int cfcsum;
 2092         char cfg_file[32];
 2093 
 2094         struct adapter_params params;
 2095         struct t4_virt_res vres;
 2096         struct tid_info tids;
 2097         struct sge sge;
 2098 
 2099         int rawf_base;
 2100         int nrawf;
 2101 
 2102 };
 2103 
 2104 static void
 2105 save_caps_and_params(struct adapter *sc, struct adapter_pre_reset_state *o)
 2106 {
 2107 
 2108         ASSERT_SYNCHRONIZED_OP(sc);
 2109 
 2110         o->flags = sc->flags;
 2111 
 2112         o->nbmcaps =  sc->nbmcaps;
 2113         o->linkcaps = sc->linkcaps;
 2114         o->switchcaps = sc->switchcaps;
 2115         o->niccaps = sc->niccaps;
 2116         o->toecaps = sc->toecaps;
 2117         o->rdmacaps = sc->rdmacaps;
 2118         o->cryptocaps = sc->cryptocaps;
 2119         o->iscsicaps = sc->iscsicaps;
 2120         o->fcoecaps = sc->fcoecaps;
 2121 
 2122         o->cfcsum = sc->cfcsum;
 2123         MPASS(sizeof(o->cfg_file) == sizeof(sc->cfg_file));
 2124         memcpy(o->cfg_file, sc->cfg_file, sizeof(o->cfg_file));
 2125 
 2126         o->params = sc->params;
 2127         o->vres = sc->vres;
 2128         o->tids = sc->tids;
 2129         o->sge = sc->sge;
 2130 
 2131         o->rawf_base = sc->rawf_base;
 2132         o->nrawf = sc->nrawf;
 2133 }
 2134 
 2135 static int
 2136 compare_caps_and_params(struct adapter *sc, struct adapter_pre_reset_state *o)
 2137 {
 2138         int rc = 0;
 2139 
 2140         ASSERT_SYNCHRONIZED_OP(sc);
 2141 
 2142         /* Capabilities */
 2143 #define COMPARE_CAPS(c) do { \
 2144         if (o->c##caps != sc->c##caps) { \
 2145                 CH_ERR(sc, "%scaps 0x%04x -> 0x%04x.\n", #c, o->c##caps, \
 2146                     sc->c##caps); \
 2147                 rc = EINVAL; \
 2148         } \
 2149 } while (0)
 2150         COMPARE_CAPS(nbm);
 2151         COMPARE_CAPS(link);
 2152         COMPARE_CAPS(switch);
 2153         COMPARE_CAPS(nic);
 2154         COMPARE_CAPS(toe);
 2155         COMPARE_CAPS(rdma);
 2156         COMPARE_CAPS(crypto);
 2157         COMPARE_CAPS(iscsi);
 2158         COMPARE_CAPS(fcoe);
 2159 #undef COMPARE_CAPS
 2160 
 2161         /* Firmware config file */
 2162         if (o->cfcsum != sc->cfcsum) {
 2163                 CH_ERR(sc, "config file %s (0x%x) -> %s (0x%x)\n", o->cfg_file,
 2164                     o->cfcsum, sc->cfg_file, sc->cfcsum);
 2165                 rc = EINVAL;
 2166         }
 2167 
 2168 #define COMPARE_PARAM(p, name) do { \
 2169         if (o->p != sc->p) { \
 2170                 CH_ERR(sc, #name " %d -> %d\n", o->p, sc->p); \
 2171                 rc = EINVAL; \
 2172         } \
 2173 } while (0)
 2174         COMPARE_PARAM(sge.iq_start, iq_start);
 2175         COMPARE_PARAM(sge.eq_start, eq_start);
 2176         COMPARE_PARAM(tids.ftid_base, ftid_base);
 2177         COMPARE_PARAM(tids.ftid_end, ftid_end);
 2178         COMPARE_PARAM(tids.nftids, nftids);
 2179         COMPARE_PARAM(vres.l2t.start, l2t_start);
 2180         COMPARE_PARAM(vres.l2t.size, l2t_size);
 2181         COMPARE_PARAM(sge.iqmap_sz, iqmap_sz);
 2182         COMPARE_PARAM(sge.eqmap_sz, eqmap_sz);
 2183         COMPARE_PARAM(tids.tid_base, tid_base);
 2184         COMPARE_PARAM(tids.hpftid_base, hpftid_base);
 2185         COMPARE_PARAM(tids.hpftid_end, hpftid_end);
 2186         COMPARE_PARAM(tids.nhpftids, nhpftids);
 2187         COMPARE_PARAM(rawf_base, rawf_base);
 2188         COMPARE_PARAM(nrawf, nrawf);
 2189         COMPARE_PARAM(params.mps_bg_map, mps_bg_map);
 2190         COMPARE_PARAM(params.filter2_wr_support, filter2_wr_support);
 2191         COMPARE_PARAM(params.ulptx_memwrite_dsgl, ulptx_memwrite_dsgl);
 2192         COMPARE_PARAM(params.fr_nsmr_tpte_wr_support, fr_nsmr_tpte_wr_support);
 2193         COMPARE_PARAM(params.max_pkts_per_eth_tx_pkts_wr, max_pkts_per_eth_tx_pkts_wr);
 2194         COMPARE_PARAM(tids.ntids, ntids);
 2195         COMPARE_PARAM(tids.etid_base, etid_base);
 2196         COMPARE_PARAM(tids.etid_end, etid_end);
 2197         COMPARE_PARAM(tids.netids, netids);
 2198         COMPARE_PARAM(params.eo_wr_cred, eo_wr_cred);
 2199         COMPARE_PARAM(params.ethoffload, ethoffload);
 2200         COMPARE_PARAM(tids.natids, natids);
 2201         COMPARE_PARAM(tids.stid_base, stid_base);
 2202         COMPARE_PARAM(vres.ddp.start, ddp_start);
 2203         COMPARE_PARAM(vres.ddp.size, ddp_size);
 2204         COMPARE_PARAM(params.ofldq_wr_cred, ofldq_wr_cred);
 2205         COMPARE_PARAM(vres.stag.start, stag_start);
 2206         COMPARE_PARAM(vres.stag.size, stag_size);
 2207         COMPARE_PARAM(vres.rq.start, rq_start);
 2208         COMPARE_PARAM(vres.rq.size, rq_size);
 2209         COMPARE_PARAM(vres.pbl.start, pbl_start);
 2210         COMPARE_PARAM(vres.pbl.size, pbl_size);
 2211         COMPARE_PARAM(vres.qp.start, qp_start);
 2212         COMPARE_PARAM(vres.qp.size, qp_size);
 2213         COMPARE_PARAM(vres.cq.start, cq_start);
 2214         COMPARE_PARAM(vres.cq.size, cq_size);
 2215         COMPARE_PARAM(vres.ocq.start, ocq_start);
 2216         COMPARE_PARAM(vres.ocq.size, ocq_size);
 2217         COMPARE_PARAM(vres.srq.start, srq_start);
 2218         COMPARE_PARAM(vres.srq.size, srq_size);
 2219         COMPARE_PARAM(params.max_ordird_qp, max_ordird_qp);
 2220         COMPARE_PARAM(params.max_ird_adapter, max_ird_adapter);
 2221         COMPARE_PARAM(vres.iscsi.start, iscsi_start);
 2222         COMPARE_PARAM(vres.iscsi.size, iscsi_size);
 2223         COMPARE_PARAM(vres.key.start, key_start);
 2224         COMPARE_PARAM(vres.key.size, key_size);
 2225 #undef COMPARE_PARAM
 2226 
 2227         return (rc);
 2228 }
 2229 
 2230 static int
 2231 t4_resume(device_t dev)
 2232 {
 2233         struct adapter *sc = device_get_softc(dev);
 2234         struct adapter_pre_reset_state *old_state = NULL;
 2235         struct port_info *pi;
 2236         struct vi_info *vi;
 2237         struct ifnet *ifp;
 2238         struct sge_txq *txq;
 2239         int rc, i, j, k;
 2240 
 2241         CH_ALERT(sc, "resume requested.\n");
 2242 
 2243         rc = begin_synchronized_op(sc, NULL, SLEEP_OK, "t4res");
 2244         if (rc != 0)
 2245                 return (ENXIO);
 2246         MPASS(hw_off_limits(sc));
 2247         MPASS((sc->flags & FW_OK) == 0);
 2248         MPASS((sc->flags & MASTER_PF) == 0);
 2249         MPASS(sc->reset_thread == NULL);
 2250         sc->reset_thread = curthread;
 2251 
 2252         /* Register access is expected to work by the time we're here. */
 2253         if (t4_read_reg(sc, A_PL_WHOAMI) == 0xffffffff) {
 2254                 CH_ERR(sc, "%s: can't read device registers\n", __func__);
 2255                 rc = ENXIO;
 2256                 goto done;
 2257         }
 2258 
 2259         /* Note that HW_OFF_LIMITS is cleared a bit later. */
 2260         atomic_clear_int(&sc->error_flags, ADAP_FATAL_ERR | ADAP_STOPPED);
 2261 
 2262         /* Restore memory window. */
 2263         setup_memwin(sc);
 2264 
 2265         /* Go no further if recovery mode has been requested. */
 2266         if (TUNABLE_INT_FETCH("hw.cxgbe.sos", &i) && i != 0) {
 2267                 CH_ALERT(sc, "recovery mode on resume.\n");
 2268                 rc = 0;
 2269                 mtx_lock(&sc->reg_lock);
 2270                 atomic_clear_int(&sc->error_flags, HW_OFF_LIMITS);
 2271                 mtx_unlock(&sc->reg_lock);
 2272                 goto done;
 2273         }
 2274 
 2275         old_state = malloc(sizeof(*old_state), M_CXGBE, M_ZERO | M_WAITOK);
 2276         save_caps_and_params(sc, old_state);
 2277 
 2278         /* Reestablish contact with firmware and become the primary PF. */
 2279         rc = contact_firmware(sc);
 2280         if (rc != 0)
 2281                 goto done; /* error message displayed already */
 2282         MPASS(sc->flags & FW_OK);
 2283 
 2284         if (sc->flags & MASTER_PF) {
 2285                 rc = partition_resources(sc);
 2286                 if (rc != 0)
 2287                         goto done; /* error message displayed already */
 2288                 t4_intr_clear(sc);
 2289         }
 2290 
 2291         rc = get_params__post_init(sc);
 2292         if (rc != 0)
 2293                 goto done; /* error message displayed already */
 2294 
 2295         rc = set_params__post_init(sc);
 2296         if (rc != 0)
 2297                 goto done; /* error message displayed already */
 2298 
 2299         rc = compare_caps_and_params(sc, old_state);
 2300         if (rc != 0)
 2301                 goto done; /* error message displayed already */
 2302 
 2303         for_each_port(sc, i) {
 2304                 pi = sc->port[i];
 2305                 MPASS(pi != NULL);
 2306                 MPASS(pi->vi != NULL);
 2307                 MPASS(pi->vi[0].dev == pi->dev);
 2308 
 2309                 rc = -t4_port_init(sc, sc->mbox, sc->pf, 0, i);
 2310                 if (rc != 0) {
 2311                         CH_ERR(sc,
 2312                             "failed to re-initialize port %d: %d\n", i, rc);
 2313                         goto done;
 2314                 }
 2315                 MPASS(sc->chan_map[pi->tx_chan] == i);
 2316 
 2317                 PORT_LOCK(pi);
 2318                 fixup_link_config(pi);
 2319                 build_medialist(pi);
 2320                 PORT_UNLOCK(pi);
 2321                 for_each_vi(pi, j, vi) {
 2322                         if (IS_MAIN_VI(vi))
 2323                                 continue;
 2324                         rc = alloc_extra_vi(sc, pi, vi);
 2325                         if (rc != 0) {
 2326                                 CH_ERR(vi,
 2327                                     "failed to re-allocate extra VI: %d\n", rc);
 2328                                 goto done;
 2329                         }
 2330                 }
 2331         }
 2332 
 2333         /*
 2334          * Interrupts and queues are about to be enabled and other threads will
 2335          * want to access the hardware too.  It is safe to do so.  Note that
 2336          * this thread is still in the middle of a synchronized_op.
 2337          */
 2338         mtx_lock(&sc->reg_lock);
 2339         atomic_clear_int(&sc->error_flags, HW_OFF_LIMITS);
 2340         mtx_unlock(&sc->reg_lock);
 2341 
 2342         if (sc->flags & FULL_INIT_DONE) {
 2343                 rc = adapter_full_init(sc);
 2344                 if (rc != 0) {
 2345                         CH_ERR(sc, "failed to re-initialize adapter: %d\n", rc);
 2346                         goto done;
 2347                 }
 2348 
 2349                 if (sc->vxlan_refcount > 0)
 2350                         enable_vxlan_rx(sc);
 2351 
 2352                 for_each_port(sc, i) {
 2353                         pi = sc->port[i];
 2354                         for_each_vi(pi, j, vi) {
 2355                                 mtx_lock(&vi->tick_mtx);
 2356                                 vi->flags &= ~VI_SKIP_STATS;
 2357                                 mtx_unlock(&vi->tick_mtx);
 2358                                 if (!(vi->flags & VI_INIT_DONE))
 2359                                         continue;
 2360                                 rc = vi_full_init(vi);
 2361                                 if (rc != 0) {
 2362                                         CH_ERR(vi, "failed to re-initialize "
 2363                                             "interface: %d\n", rc);
 2364                                         goto done;
 2365                                 }
 2366 
 2367                                 ifp = vi->ifp;
 2368                                 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING))
 2369                                         continue;
 2370                                 /*
 2371                                  * Note that we do not setup multicast addresses
 2372                                  * in the first pass.  This ensures that the
 2373                                  * unicast DMACs for all VIs on all ports get an
 2374                                  * MPS TCAM entry.
 2375                                  */
 2376                                 rc = update_mac_settings(ifp, XGMAC_ALL &
 2377                                     ~XGMAC_MCADDRS);
 2378                                 if (rc != 0) {
 2379                                         CH_ERR(vi, "failed to re-configure MAC: %d\n", rc);
 2380                                         goto done;
 2381                                 }
 2382                                 rc = -t4_enable_vi(sc, sc->mbox, vi->viid, true,
 2383                                     true);
 2384                                 if (rc != 0) {
 2385                                         CH_ERR(vi, "failed to re-enable VI: %d\n", rc);
 2386                                         goto done;
 2387                                 }
 2388                                 for_each_txq(vi, k, txq) {
 2389                                         TXQ_LOCK(txq);
 2390                                         txq->eq.flags |= EQ_ENABLED;
 2391                                         TXQ_UNLOCK(txq);
 2392                                 }
 2393                                 mtx_lock(&vi->tick_mtx);
 2394                                 callout_schedule(&vi->tick, hz);
 2395                                 mtx_unlock(&vi->tick_mtx);
 2396                         }
 2397                         PORT_LOCK(pi);
 2398                         if (pi->up_vis > 0) {
 2399                                 t4_update_port_info(pi);
 2400                                 fixup_link_config(pi);
 2401                                 build_medialist(pi);
 2402                                 apply_link_config(pi);
 2403                                 if (pi->link_cfg.link_ok)
 2404                                         t4_os_link_changed(pi);
 2405                         }
 2406                         PORT_UNLOCK(pi);
 2407                 }
 2408 
 2409                 /* Now reprogram the L2 multicast addresses. */
 2410                 for_each_port(sc, i) {
 2411                         pi = sc->port[i];
 2412                         for_each_vi(pi, j, vi) {
 2413                                 if (!(vi->flags & VI_INIT_DONE))
 2414                                         continue;
 2415                                 ifp = vi->ifp;
 2416                                 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING))
 2417                                         continue;
 2418                                 rc = update_mac_settings(ifp, XGMAC_MCADDRS);
 2419                                 if (rc != 0) {
 2420                                         CH_ERR(vi, "failed to re-configure MCAST MACs: %d\n", rc);
 2421                                         rc = 0; /* carry on */
 2422                                 }
 2423                         }
 2424                 }
 2425         }
 2426 
 2427         /* Reset all calibration */
 2428         t4_calibration_start(sc);
 2429 
 2430 done:
 2431         if (rc == 0) {
 2432                 sc->incarnation++;
 2433                 CH_ALERT(sc, "resume completed.\n");
 2434         }
 2435         end_synchronized_op(sc, 0);
 2436         free(old_state, M_CXGBE);
 2437         return (rc);
 2438 }
 2439 
 2440 static int
 2441 t4_reset_prepare(device_t dev, device_t child)
 2442 {
 2443         struct adapter *sc = device_get_softc(dev);
 2444 
 2445         CH_ALERT(sc, "reset_prepare.\n");
 2446         return (0);
 2447 }
 2448 
 2449 static int
 2450 t4_reset_post(device_t dev, device_t child)
 2451 {
 2452         struct adapter *sc = device_get_softc(dev);
 2453 
 2454         CH_ALERT(sc, "reset_post.\n");
 2455         return (0);
 2456 }
 2457 
 2458 static int
 2459 reset_adapter(struct adapter *sc)
 2460 {
 2461         int rc, oldinc, error_flags;
 2462 
 2463         CH_ALERT(sc, "reset requested.\n");
 2464 
 2465         rc = begin_synchronized_op(sc, NULL, SLEEP_OK, "t4rst1");
 2466         if (rc != 0)
 2467                 return (EBUSY);
 2468 
 2469         if (hw_off_limits(sc)) {
 2470                 CH_ERR(sc, "adapter is suspended, use resume (not reset).\n");
 2471                 rc = ENXIO;
 2472                 goto done;
 2473         }
 2474 
 2475         if (!ok_to_reset(sc)) {
 2476                 /* XXX: should list what resource is preventing reset. */
 2477                 CH_ERR(sc, "not safe to reset.\n");
 2478                 rc = EBUSY;
 2479                 goto done;
 2480         }
 2481 
 2482 done:
 2483         oldinc = sc->incarnation;
 2484         end_synchronized_op(sc, 0);
 2485         if (rc != 0)
 2486                 return (rc);    /* Error logged already. */
 2487 
 2488         atomic_add_int(&sc->num_resets, 1);
 2489         mtx_lock(&Giant);
 2490         rc = BUS_RESET_CHILD(device_get_parent(sc->dev), sc->dev, 0);
 2491         mtx_unlock(&Giant);
 2492         if (rc != 0)
 2493                 CH_ERR(sc, "bus_reset_child failed: %d.\n", rc);
 2494         else {
 2495                 rc = begin_synchronized_op(sc, NULL, SLEEP_OK, "t4rst2");
 2496                 if (rc != 0)
 2497                         return (EBUSY);
 2498                 error_flags = atomic_load_int(&sc->error_flags);
 2499                 if (sc->incarnation > oldinc && error_flags == 0) {
 2500                         CH_ALERT(sc, "bus_reset_child succeeded.\n");
 2501                 } else {
 2502                         CH_ERR(sc, "adapter did not reset properly, flags "
 2503                             "0x%08x, error_flags 0x%08x.\n", sc->flags,
 2504                             error_flags);
 2505                         rc = ENXIO;
 2506                 }
 2507                 end_synchronized_op(sc, 0);
 2508         }
 2509 
 2510         return (rc);
 2511 }
 2512 
 2513 static void
 2514 reset_adapter_task(void *arg, int pending)
 2515 {
 2516         /* XXX: t4_async_event here? */
 2517         reset_adapter(arg);
 2518 }
 2519 
 2520 static int
 2521 cxgbe_probe(device_t dev)
 2522 {
 2523         char buf[128];
 2524         struct port_info *pi = device_get_softc(dev);
 2525 
 2526         snprintf(buf, sizeof(buf), "port %d", pi->port_id);
 2527         device_set_desc_copy(dev, buf);
 2528 
 2529         return (BUS_PROBE_DEFAULT);
 2530 }
 2531 
 2532 #define T4_CAP (IFCAP_VLAN_HWTAGGING | IFCAP_VLAN_MTU | IFCAP_HWCSUM | \
 2533     IFCAP_VLAN_HWCSUM | IFCAP_TSO | IFCAP_JUMBO_MTU | IFCAP_LRO | \
 2534     IFCAP_VLAN_HWTSO | IFCAP_LINKSTATE | IFCAP_HWCSUM_IPV6 | IFCAP_HWSTATS | \
 2535     IFCAP_HWRXTSTMP | IFCAP_MEXTPG)
 2536 #define T4_CAP_ENABLE (T4_CAP)
 2537 
 2538 static int
 2539 cxgbe_vi_attach(device_t dev, struct vi_info *vi)
 2540 {
 2541         struct ifnet *ifp;
 2542         struct sbuf *sb;
 2543         struct sysctl_ctx_list *ctx = &vi->ctx;
 2544         struct sysctl_oid_list *children;
 2545         struct pfil_head_args pa;
 2546         struct adapter *sc = vi->adapter;
 2547 
 2548         sysctl_ctx_init(ctx);
 2549         children = SYSCTL_CHILDREN(device_get_sysctl_tree(vi->dev));
 2550         vi->rxq_oid = SYSCTL_ADD_NODE(ctx, children, OID_AUTO, "rxq",
 2551             CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "NIC rx queues");
 2552         vi->txq_oid = SYSCTL_ADD_NODE(ctx, children, OID_AUTO, "txq",
 2553             CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "NIC tx queues");
 2554 #ifdef DEV_NETMAP
 2555         vi->nm_rxq_oid = SYSCTL_ADD_NODE(ctx, children, OID_AUTO, "nm_rxq",
 2556             CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "netmap rx queues");
 2557         vi->nm_txq_oid = SYSCTL_ADD_NODE(ctx, children, OID_AUTO, "nm_txq",
 2558             CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "netmap tx queues");
 2559 #endif
 2560 #ifdef TCP_OFFLOAD
 2561         vi->ofld_rxq_oid = SYSCTL_ADD_NODE(ctx, children, OID_AUTO, "ofld_rxq",
 2562             CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "TOE rx queues");
 2563 #endif
 2564 #if defined(TCP_OFFLOAD) || defined(RATELIMIT)
 2565         vi->ofld_txq_oid = SYSCTL_ADD_NODE(ctx, children, OID_AUTO, "ofld_txq",
 2566             CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "TOE/ETHOFLD tx queues");
 2567 #endif
 2568 
 2569         vi->xact_addr_filt = -1;
 2570         mtx_init(&vi->tick_mtx, "vi tick", NULL, MTX_DEF);
 2571         callout_init_mtx(&vi->tick, &vi->tick_mtx, 0);
 2572         if (sc->flags & IS_VF || t4_tx_vm_wr != 0)
 2573                 vi->flags |= TX_USES_VM_WR;
 2574 
 2575         /* Allocate an ifnet and set it up */
 2576         ifp = if_alloc_dev(IFT_ETHER, dev);
 2577         if (ifp == NULL) {
 2578                 device_printf(dev, "Cannot allocate ifnet\n");
 2579                 return (ENOMEM);
 2580         }
 2581         vi->ifp = ifp;
 2582         ifp->if_softc = vi;
 2583 
 2584         if_initname(ifp, device_get_name(dev), device_get_unit(dev));
 2585         ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
 2586 
 2587         ifp->if_init = cxgbe_init;
 2588         ifp->if_ioctl = cxgbe_ioctl;
 2589         ifp->if_transmit = cxgbe_transmit;
 2590         ifp->if_qflush = cxgbe_qflush;
 2591         if (vi->pi->nvi > 1 || sc->flags & IS_VF)
 2592                 ifp->if_get_counter = vi_get_counter;
 2593         else
 2594                 ifp->if_get_counter = cxgbe_get_counter;
 2595 #if defined(KERN_TLS) || defined(RATELIMIT)
 2596         ifp->if_snd_tag_alloc = cxgbe_snd_tag_alloc;
 2597 #endif
 2598 #ifdef RATELIMIT
 2599         ifp->if_ratelimit_query = cxgbe_ratelimit_query;
 2600 #endif
 2601 
 2602         ifp->if_capabilities = T4_CAP;
 2603         ifp->if_capenable = T4_CAP_ENABLE;
 2604         ifp->if_hwassist = CSUM_TCP | CSUM_UDP | CSUM_IP | CSUM_TSO |
 2605             CSUM_UDP_IPV6 | CSUM_TCP_IPV6;
 2606         if (chip_id(sc) >= CHELSIO_T6) {
 2607                 ifp->if_capabilities |= IFCAP_VXLAN_HWCSUM | IFCAP_VXLAN_HWTSO;
 2608                 ifp->if_capenable |= IFCAP_VXLAN_HWCSUM | IFCAP_VXLAN_HWTSO;
 2609                 ifp->if_hwassist |= CSUM_INNER_IP6_UDP | CSUM_INNER_IP6_TCP |
 2610                     CSUM_INNER_IP6_TSO | CSUM_INNER_IP | CSUM_INNER_IP_UDP |
 2611                     CSUM_INNER_IP_TCP | CSUM_INNER_IP_TSO | CSUM_ENCAP_VXLAN;
 2612         }
 2613 
 2614 #ifdef TCP_OFFLOAD
 2615         if (vi->nofldrxq != 0)
 2616                 ifp->if_capabilities |= IFCAP_TOE;
 2617 #endif
 2618 #ifdef RATELIMIT
 2619         if (is_ethoffload(sc) && vi->nofldtxq != 0) {
 2620                 ifp->if_capabilities |= IFCAP_TXRTLMT;
 2621                 ifp->if_capenable |= IFCAP_TXRTLMT;
 2622         }
 2623 #endif
 2624 
 2625         ifp->if_hw_tsomax = IP_MAXPACKET;
 2626         if (vi->flags & TX_USES_VM_WR)
 2627                 ifp->if_hw_tsomaxsegcount = TX_SGL_SEGS_VM_TSO;
 2628         else
 2629                 ifp->if_hw_tsomaxsegcount = TX_SGL_SEGS_TSO;
 2630 #ifdef RATELIMIT
 2631         if (is_ethoffload(sc) && vi->nofldtxq != 0)
 2632                 ifp->if_hw_tsomaxsegcount = TX_SGL_SEGS_EO_TSO;
 2633 #endif
 2634         ifp->if_hw_tsomaxsegsize = 65536;
 2635 #ifdef KERN_TLS
 2636         if (is_ktls(sc)) {
 2637                 ifp->if_capabilities |= IFCAP_TXTLS;
 2638                 if (sc->flags & KERN_TLS_ON || !is_t6(sc))
 2639                         ifp->if_capenable |= IFCAP_TXTLS;
 2640         }
 2641 #endif
 2642 
 2643         ether_ifattach(ifp, vi->hw_addr);
 2644 #ifdef DEV_NETMAP
 2645         if (vi->nnmrxq != 0)
 2646                 cxgbe_nm_attach(vi);
 2647 #endif
 2648         sb = sbuf_new_auto();
 2649         sbuf_printf(sb, "%d txq, %d rxq (NIC)", vi->ntxq, vi->nrxq);
 2650 #if defined(TCP_OFFLOAD) || defined(RATELIMIT)
 2651         switch (ifp->if_capabilities & (IFCAP_TOE | IFCAP_TXRTLMT)) {
 2652         case IFCAP_TOE:
 2653                 sbuf_printf(sb, "; %d txq (TOE)", vi->nofldtxq);
 2654                 break;
 2655         case IFCAP_TOE | IFCAP_TXRTLMT:
 2656                 sbuf_printf(sb, "; %d txq (TOE/ETHOFLD)", vi->nofldtxq);
 2657                 break;
 2658         case IFCAP_TXRTLMT:
 2659                 sbuf_printf(sb, "; %d txq (ETHOFLD)", vi->nofldtxq);
 2660                 break;
 2661         }
 2662 #endif
 2663 #ifdef TCP_OFFLOAD
 2664         if (ifp->if_capabilities & IFCAP_TOE)
 2665                 sbuf_printf(sb, ", %d rxq (TOE)", vi->nofldrxq);
 2666 #endif
 2667 #ifdef DEV_NETMAP
 2668         if (ifp->if_capabilities & IFCAP_NETMAP)
 2669                 sbuf_printf(sb, "; %d txq, %d rxq (netmap)",
 2670                     vi->nnmtxq, vi->nnmrxq);
 2671 #endif
 2672         sbuf_finish(sb);
 2673         device_printf(dev, "%s\n", sbuf_data(sb));
 2674         sbuf_delete(sb);
 2675 
 2676         vi_sysctls(vi);
 2677 
 2678         pa.pa_version = PFIL_VERSION;
 2679         pa.pa_flags = PFIL_IN;
 2680         pa.pa_type = PFIL_TYPE_ETHERNET;
 2681         pa.pa_headname = ifp->if_xname;
 2682         vi->pfil = pfil_head_register(&pa);
 2683 
 2684         return (0);
 2685 }
 2686 
 2687 static int
 2688 cxgbe_attach(device_t dev)
 2689 {
 2690         struct port_info *pi = device_get_softc(dev);
 2691         struct adapter *sc = pi->adapter;
 2692         struct vi_info *vi;
 2693         int i, rc;
 2694 
 2695         sysctl_ctx_init(&pi->ctx);
 2696 
 2697         rc = cxgbe_vi_attach(dev, &pi->vi[0]);
 2698         if (rc)
 2699                 return (rc);
 2700 
 2701         for_each_vi(pi, i, vi) {
 2702                 if (i == 0)
 2703                         continue;
 2704                 vi->dev = device_add_child(dev, sc->names->vi_ifnet_name, -1);
 2705                 if (vi->dev == NULL) {
 2706                         device_printf(dev, "failed to add VI %d\n", i);
 2707                         continue;
 2708                 }
 2709                 device_set_softc(vi->dev, vi);
 2710         }
 2711 
 2712         cxgbe_sysctls(pi);
 2713 
 2714         bus_generic_attach(dev);
 2715 
 2716         return (0);
 2717 }
 2718 
 2719 static void
 2720 cxgbe_vi_detach(struct vi_info *vi)
 2721 {
 2722         struct ifnet *ifp = vi->ifp;
 2723 
 2724         if (vi->pfil != NULL) {
 2725                 pfil_head_unregister(vi->pfil);
 2726                 vi->pfil = NULL;
 2727         }
 2728 
 2729         ether_ifdetach(ifp);
 2730 
 2731         /* Let detach proceed even if these fail. */
 2732 #ifdef DEV_NETMAP
 2733         if (ifp->if_capabilities & IFCAP_NETMAP)
 2734                 cxgbe_nm_detach(vi);
 2735 #endif
 2736         cxgbe_uninit_synchronized(vi);
 2737         callout_drain(&vi->tick);
 2738         sysctl_ctx_free(&vi->ctx);
 2739         vi_full_uninit(vi);
 2740 
 2741         if_free(vi->ifp);
 2742         vi->ifp = NULL;
 2743 }
 2744 
 2745 static int
 2746 cxgbe_detach(device_t dev)
 2747 {
 2748         struct port_info *pi = device_get_softc(dev);
 2749         struct adapter *sc = pi->adapter;
 2750         int rc;
 2751 
 2752         /* Detach the extra VIs first. */
 2753         rc = bus_generic_detach(dev);
 2754         if (rc)
 2755                 return (rc);
 2756         device_delete_children(dev);
 2757 
 2758         sysctl_ctx_free(&pi->ctx);
 2759         doom_vi(sc, &pi->vi[0]);
 2760 
 2761         if (pi->flags & HAS_TRACEQ) {
 2762                 sc->traceq = -1;        /* cloner should not create ifnet */
 2763                 t4_tracer_port_detach(sc);
 2764         }
 2765 
 2766         cxgbe_vi_detach(&pi->vi[0]);
 2767         ifmedia_removeall(&pi->media);
 2768 
 2769         end_synchronized_op(sc, 0);
 2770 
 2771         return (0);
 2772 }
 2773 
 2774 static void
 2775 cxgbe_init(void *arg)
 2776 {
 2777         struct vi_info *vi = arg;
 2778         struct adapter *sc = vi->adapter;
 2779 
 2780         if (begin_synchronized_op(sc, vi, SLEEP_OK | INTR_OK, "t4init") != 0)
 2781                 return;
 2782         cxgbe_init_synchronized(vi);
 2783         end_synchronized_op(sc, 0);
 2784 }
 2785 
 2786 static int
 2787 cxgbe_ioctl(struct ifnet *ifp, unsigned long cmd, caddr_t data)
 2788 {
 2789         int rc = 0, mtu, flags;
 2790         struct vi_info *vi = ifp->if_softc;
 2791         struct port_info *pi = vi->pi;
 2792         struct adapter *sc = pi->adapter;
 2793         struct ifreq *ifr = (struct ifreq *)data;
 2794         uint32_t mask;
 2795 
 2796         switch (cmd) {
 2797         case SIOCSIFMTU:
 2798                 mtu = ifr->ifr_mtu;
 2799                 if (mtu < ETHERMIN || mtu > MAX_MTU)
 2800                         return (EINVAL);
 2801 
 2802                 rc = begin_synchronized_op(sc, vi, SLEEP_OK | INTR_OK, "t4mtu");
 2803                 if (rc)
 2804                         return (rc);
 2805                 ifp->if_mtu = mtu;
 2806                 if (vi->flags & VI_INIT_DONE) {
 2807                         t4_update_fl_bufsize(ifp);
 2808                         if (!hw_off_limits(sc) &&
 2809                             ifp->if_drv_flags & IFF_DRV_RUNNING)
 2810                                 rc = update_mac_settings(ifp, XGMAC_MTU);
 2811                 }
 2812                 end_synchronized_op(sc, 0);
 2813                 break;
 2814 
 2815         case SIOCSIFFLAGS:
 2816                 rc = begin_synchronized_op(sc, vi, SLEEP_OK | INTR_OK, "t4flg");
 2817                 if (rc)
 2818                         return (rc);
 2819 
 2820                 if (hw_off_limits(sc)) {
 2821                         rc = ENXIO;
 2822                         goto fail;
 2823                 }
 2824 
 2825                 if (ifp->if_flags & IFF_UP) {
 2826                         if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
 2827                                 flags = vi->if_flags;
 2828                                 if ((ifp->if_flags ^ flags) &
 2829                                     (IFF_PROMISC | IFF_ALLMULTI)) {
 2830                                         rc = update_mac_settings(ifp,
 2831                                             XGMAC_PROMISC | XGMAC_ALLMULTI);
 2832                                 }
 2833                         } else {
 2834                                 rc = cxgbe_init_synchronized(vi);
 2835                         }
 2836                         vi->if_flags = ifp->if_flags;
 2837                 } else if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
 2838                         rc = cxgbe_uninit_synchronized(vi);
 2839                 }
 2840                 end_synchronized_op(sc, 0);
 2841                 break;
 2842 
 2843         case SIOCADDMULTI:
 2844         case SIOCDELMULTI:
 2845                 rc = begin_synchronized_op(sc, vi, SLEEP_OK | INTR_OK, "t4multi");
 2846                 if (rc)
 2847                         return (rc);
 2848                 if (!hw_off_limits(sc) && ifp->if_drv_flags & IFF_DRV_RUNNING)
 2849                         rc = update_mac_settings(ifp, XGMAC_MCADDRS);
 2850                 end_synchronized_op(sc, 0);
 2851                 break;
 2852 
 2853         case SIOCSIFCAP:
 2854                 rc = begin_synchronized_op(sc, vi, SLEEP_OK | INTR_OK, "t4cap");
 2855                 if (rc)
 2856                         return (rc);
 2857 
 2858                 mask = ifr->ifr_reqcap ^ ifp->if_capenable;
 2859                 if (mask & IFCAP_TXCSUM) {
 2860                         ifp->if_capenable ^= IFCAP_TXCSUM;
 2861                         ifp->if_hwassist ^= (CSUM_TCP | CSUM_UDP | CSUM_IP);
 2862 
 2863                         if (IFCAP_TSO4 & ifp->if_capenable &&
 2864                             !(IFCAP_TXCSUM & ifp->if_capenable)) {
 2865                                 mask &= ~IFCAP_TSO4;
 2866                                 ifp->if_capenable &= ~IFCAP_TSO4;
 2867                                 if_printf(ifp,
 2868                                     "tso4 disabled due to -txcsum.\n");
 2869                         }
 2870                 }
 2871                 if (mask & IFCAP_TXCSUM_IPV6) {
 2872                         ifp->if_capenable ^= IFCAP_TXCSUM_IPV6;
 2873                         ifp->if_hwassist ^= (CSUM_UDP_IPV6 | CSUM_TCP_IPV6);
 2874 
 2875                         if (IFCAP_TSO6 & ifp->if_capenable &&
 2876                             !(IFCAP_TXCSUM_IPV6 & ifp->if_capenable)) {
 2877                                 mask &= ~IFCAP_TSO6;
 2878                                 ifp->if_capenable &= ~IFCAP_TSO6;
 2879                                 if_printf(ifp,
 2880                                     "tso6 disabled due to -txcsum6.\n");
 2881                         }
 2882                 }
 2883                 if (mask & IFCAP_RXCSUM)
 2884                         ifp->if_capenable ^= IFCAP_RXCSUM;
 2885                 if (mask & IFCAP_RXCSUM_IPV6)
 2886                         ifp->if_capenable ^= IFCAP_RXCSUM_IPV6;
 2887 
 2888                 /*
 2889                  * Note that we leave CSUM_TSO alone (it is always set).  The
 2890                  * kernel takes both IFCAP_TSOx and CSUM_TSO into account before
 2891                  * sending a TSO request our way, so it's sufficient to toggle
 2892                  * IFCAP_TSOx only.
 2893                  */
 2894                 if (mask & IFCAP_TSO4) {
 2895                         if (!(IFCAP_TSO4 & ifp->if_capenable) &&
 2896                             !(IFCAP_TXCSUM & ifp->if_capenable)) {
 2897                                 if_printf(ifp, "enable txcsum first.\n");
 2898                                 rc = EAGAIN;
 2899                                 goto fail;
 2900                         }
 2901                         ifp->if_capenable ^= IFCAP_TSO4;
 2902                 }
 2903                 if (mask & IFCAP_TSO6) {
 2904                         if (!(IFCAP_TSO6 & ifp->if_capenable) &&
 2905                             !(IFCAP_TXCSUM_IPV6 & ifp->if_capenable)) {
 2906                                 if_printf(ifp, "enable txcsum6 first.\n");
 2907                                 rc = EAGAIN;
 2908                                 goto fail;
 2909                         }
 2910                         ifp->if_capenable ^= IFCAP_TSO6;
 2911                 }
 2912                 if (mask & IFCAP_LRO) {
 2913 #if defined(INET) || defined(INET6)
 2914                         int i;
 2915                         struct sge_rxq *rxq;
 2916 
 2917                         ifp->if_capenable ^= IFCAP_LRO;
 2918                         for_each_rxq(vi, i, rxq) {
 2919                                 if (ifp->if_capenable & IFCAP_LRO)
 2920                                         rxq->iq.flags |= IQ_LRO_ENABLED;
 2921                                 else
 2922                                         rxq->iq.flags &= ~IQ_LRO_ENABLED;
 2923                         }
 2924 #endif
 2925                 }
 2926 #ifdef TCP_OFFLOAD
 2927                 if (mask & IFCAP_TOE) {
 2928                         int enable = (ifp->if_capenable ^ mask) & IFCAP_TOE;
 2929 
 2930                         rc = toe_capability(vi, enable);
 2931                         if (rc != 0)
 2932                                 goto fail;
 2933 
 2934                         ifp->if_capenable ^= mask;
 2935                 }
 2936 #endif
 2937                 if (mask & IFCAP_VLAN_HWTAGGING) {
 2938                         ifp->if_capenable ^= IFCAP_VLAN_HWTAGGING;
 2939                         if (ifp->if_drv_flags & IFF_DRV_RUNNING)
 2940                                 rc = update_mac_settings(ifp, XGMAC_VLANEX);
 2941                 }
 2942                 if (mask & IFCAP_VLAN_MTU) {
 2943                         ifp->if_capenable ^= IFCAP_VLAN_MTU;
 2944 
 2945                         /* Need to find out how to disable auto-mtu-inflation */
 2946                 }
 2947                 if (mask & IFCAP_VLAN_HWTSO)
 2948                         ifp->if_capenable ^= IFCAP_VLAN_HWTSO;
 2949                 if (mask & IFCAP_VLAN_HWCSUM)
 2950                         ifp->if_capenable ^= IFCAP_VLAN_HWCSUM;
 2951 #ifdef RATELIMIT
 2952                 if (mask & IFCAP_TXRTLMT)
 2953                         ifp->if_capenable ^= IFCAP_TXRTLMT;
 2954 #endif
 2955                 if (mask & IFCAP_HWRXTSTMP) {
 2956                         int i;
 2957                         struct sge_rxq *rxq;
 2958 
 2959                         ifp->if_capenable ^= IFCAP_HWRXTSTMP;
 2960                         for_each_rxq(vi, i, rxq) {
 2961                                 if (ifp->if_capenable & IFCAP_HWRXTSTMP)
 2962                                         rxq->iq.flags |= IQ_RX_TIMESTAMP;
 2963                                 else
 2964                                         rxq->iq.flags &= ~IQ_RX_TIMESTAMP;
 2965                         }
 2966                 }
 2967                 if (mask & IFCAP_MEXTPG)
 2968                         ifp->if_capenable ^= IFCAP_MEXTPG;
 2969 
 2970 #ifdef KERN_TLS
 2971                 if (mask & IFCAP_TXTLS) {
 2972                         int enable = (ifp->if_capenable ^ mask) & IFCAP_TXTLS;
 2973 
 2974                         rc = ktls_capability(sc, enable);
 2975                         if (rc != 0)
 2976                                 goto fail;
 2977 
 2978                         ifp->if_capenable ^= (mask & IFCAP_TXTLS);
 2979                 }
 2980 #endif
 2981                 if (mask & IFCAP_VXLAN_HWCSUM) {
 2982                         ifp->if_capenable ^= IFCAP_VXLAN_HWCSUM;
 2983                         ifp->if_hwassist ^= CSUM_INNER_IP6_UDP |
 2984                             CSUM_INNER_IP6_TCP | CSUM_INNER_IP |
 2985                             CSUM_INNER_IP_UDP | CSUM_INNER_IP_TCP;
 2986                 }
 2987                 if (mask & IFCAP_VXLAN_HWTSO) {
 2988                         ifp->if_capenable ^= IFCAP_VXLAN_HWTSO;
 2989                         ifp->if_hwassist ^= CSUM_INNER_IP6_TSO |
 2990                             CSUM_INNER_IP_TSO;
 2991                 }
 2992 
 2993 #ifdef VLAN_CAPABILITIES
 2994                 VLAN_CAPABILITIES(ifp);
 2995 #endif
 2996 fail:
 2997                 end_synchronized_op(sc, 0);
 2998                 break;
 2999 
 3000         case SIOCSIFMEDIA:
 3001         case SIOCGIFMEDIA:
 3002         case SIOCGIFXMEDIA:
 3003                 rc = ifmedia_ioctl(ifp, ifr, &pi->media, cmd);
 3004                 break;
 3005 
 3006         case SIOCGI2C: {
 3007                 struct ifi2creq i2c;
 3008 
 3009                 rc = copyin(ifr_data_get_ptr(ifr), &i2c, sizeof(i2c));
 3010                 if (rc != 0)
 3011                         break;
 3012                 if (i2c.dev_addr != 0xA0 && i2c.dev_addr != 0xA2) {
 3013                         rc = EPERM;
 3014                         break;
 3015                 }
 3016                 if (i2c.len > sizeof(i2c.data)) {
 3017                         rc = EINVAL;
 3018                         break;
 3019                 }
 3020                 rc = begin_synchronized_op(sc, vi, SLEEP_OK | INTR_OK, "t4i2c");
 3021                 if (rc)
 3022                         return (rc);
 3023                 if (hw_off_limits(sc))
 3024                         rc = ENXIO;
 3025                 else
 3026                         rc = -t4_i2c_rd(sc, sc->mbox, pi->port_id, i2c.dev_addr,
 3027                             i2c.offset, i2c.len, &i2c.data[0]);
 3028                 end_synchronized_op(sc, 0);
 3029                 if (rc == 0)
 3030                         rc = copyout(&i2c, ifr_data_get_ptr(ifr), sizeof(i2c));
 3031                 break;
 3032         }
 3033 
 3034         default:
 3035                 rc = ether_ioctl(ifp, cmd, data);
 3036         }
 3037 
 3038         return (rc);
 3039 }
 3040 
 3041 static int
 3042 cxgbe_transmit(struct ifnet *ifp, struct mbuf *m)
 3043 {
 3044         struct vi_info *vi = ifp->if_softc;
 3045         struct port_info *pi = vi->pi;
 3046         struct adapter *sc;
 3047         struct sge_txq *txq;
 3048         void *items[1];
 3049         int rc;
 3050 
 3051         M_ASSERTPKTHDR(m);
 3052         MPASS(m->m_nextpkt == NULL);    /* not quite ready for this yet */
 3053 #if defined(KERN_TLS) || defined(RATELIMIT)
 3054         if (m->m_pkthdr.csum_flags & CSUM_SND_TAG)
 3055                 MPASS(m->m_pkthdr.snd_tag->ifp == ifp);
 3056 #endif
 3057 
 3058         if (__predict_false(pi->link_cfg.link_ok == false)) {
 3059                 m_freem(m);
 3060                 return (ENETDOWN);
 3061         }
 3062 
 3063         rc = parse_pkt(&m, vi->flags & TX_USES_VM_WR);
 3064         if (__predict_false(rc != 0)) {
 3065                 MPASS(m == NULL);                       /* was freed already */
 3066                 atomic_add_int(&pi->tx_parse_error, 1); /* rare, atomic is ok */
 3067                 return (rc);
 3068         }
 3069 #ifdef RATELIMIT
 3070         if (m->m_pkthdr.csum_flags & CSUM_SND_TAG) {
 3071                 if (m->m_pkthdr.snd_tag->sw->type == IF_SND_TAG_TYPE_RATE_LIMIT)
 3072                         return (ethofld_transmit(ifp, m));
 3073         }
 3074 #endif
 3075 
 3076         /* Select a txq. */
 3077         sc = vi->adapter;
 3078         txq = &sc->sge.txq[vi->first_txq];
 3079         if (M_HASHTYPE_GET(m) != M_HASHTYPE_NONE)
 3080                 txq += ((m->m_pkthdr.flowid % (vi->ntxq - vi->rsrv_noflowq)) +
 3081                     vi->rsrv_noflowq);
 3082 
 3083         items[0] = m;
 3084         rc = mp_ring_enqueue(txq->r, items, 1, 256);
 3085         if (__predict_false(rc != 0))
 3086                 m_freem(m);
 3087 
 3088         return (rc);
 3089 }
 3090 
 3091 static void
 3092 cxgbe_qflush(struct ifnet *ifp)
 3093 {
 3094         struct vi_info *vi = ifp->if_softc;
 3095         struct sge_txq *txq;
 3096         int i;
 3097 
 3098         /* queues do not exist if !VI_INIT_DONE. */
 3099         if (vi->flags & VI_INIT_DONE) {
 3100                 for_each_txq(vi, i, txq) {
 3101                         TXQ_LOCK(txq);
 3102                         txq->eq.flags |= EQ_QFLUSH;
 3103                         TXQ_UNLOCK(txq);
 3104                         while (!mp_ring_is_idle(txq->r)) {
 3105                                 mp_ring_check_drainage(txq->r, 4096);
 3106                                 pause("qflush", 1);
 3107                         }
 3108                         TXQ_LOCK(txq);
 3109                         txq->eq.flags &= ~EQ_QFLUSH;
 3110                         TXQ_UNLOCK(txq);
 3111                 }
 3112         }
 3113         if_qflush(ifp);
 3114 }
 3115 
 3116 static uint64_t
 3117 vi_get_counter(struct ifnet *ifp, ift_counter c)
 3118 {
 3119         struct vi_info *vi = ifp->if_softc;
 3120         struct fw_vi_stats_vf *s = &vi->stats;
 3121 
 3122         mtx_lock(&vi->tick_mtx);
 3123         vi_refresh_stats(vi);
 3124         mtx_unlock(&vi->tick_mtx);
 3125 
 3126         switch (c) {
 3127         case IFCOUNTER_IPACKETS:
 3128                 return (s->rx_bcast_frames + s->rx_mcast_frames +
 3129                     s->rx_ucast_frames);
 3130         case IFCOUNTER_IERRORS:
 3131                 return (s->rx_err_frames);
 3132         case IFCOUNTER_OPACKETS:
 3133                 return (s->tx_bcast_frames + s->tx_mcast_frames +
 3134                     s->tx_ucast_frames + s->tx_offload_frames);
 3135         case IFCOUNTER_OERRORS:
 3136                 return (s->tx_drop_frames);
 3137         case IFCOUNTER_IBYTES:
 3138                 return (s->rx_bcast_bytes + s->rx_mcast_bytes +
 3139                     s->rx_ucast_bytes);
 3140         case IFCOUNTER_OBYTES:
 3141                 return (s->tx_bcast_bytes + s->tx_mcast_bytes +
 3142                     s->tx_ucast_bytes + s->tx_offload_bytes);
 3143         case IFCOUNTER_IMCASTS:
 3144                 return (s->rx_mcast_frames);
 3145         case IFCOUNTER_OMCASTS:
 3146                 return (s->tx_mcast_frames);
 3147         case IFCOUNTER_OQDROPS: {
 3148                 uint64_t drops;
 3149 
 3150                 drops = 0;
 3151                 if (vi->flags & VI_INIT_DONE) {
 3152                         int i;
 3153                         struct sge_txq *txq;
 3154 
 3155                         for_each_txq(vi, i, txq)
 3156                                 drops += counter_u64_fetch(txq->r->dropped);
 3157                 }
 3158 
 3159                 return (drops);
 3160 
 3161         }
 3162 
 3163         default:
 3164                 return (if_get_counter_default(ifp, c));
 3165         }
 3166 }
 3167 
 3168 static uint64_t
 3169 cxgbe_get_counter(struct ifnet *ifp, ift_counter c)
 3170 {
 3171         struct vi_info *vi = ifp->if_softc;
 3172         struct port_info *pi = vi->pi;
 3173         struct port_stats *s = &pi->stats;
 3174 
 3175         mtx_lock(&vi->tick_mtx);
 3176         cxgbe_refresh_stats(vi);
 3177         mtx_unlock(&vi->tick_mtx);
 3178 
 3179         switch (c) {
 3180         case IFCOUNTER_IPACKETS:
 3181                 return (s->rx_frames);
 3182 
 3183         case IFCOUNTER_IERRORS:
 3184                 return (s->rx_jabber + s->rx_runt + s->rx_too_long +
 3185                     s->rx_fcs_err + s->rx_len_err);
 3186 
 3187         case IFCOUNTER_OPACKETS:
 3188                 return (s->tx_frames);
 3189 
 3190         case IFCOUNTER_OERRORS:
 3191                 return (s->tx_error_frames);
 3192 
 3193         case IFCOUNTER_IBYTES:
 3194                 return (s->rx_octets);
 3195 
 3196         case IFCOUNTER_OBYTES:
 3197                 return (s->tx_octets);
 3198 
 3199         case IFCOUNTER_IMCASTS:
 3200                 return (s->rx_mcast_frames);
 3201 
 3202         case IFCOUNTER_OMCASTS:
 3203                 return (s->tx_mcast_frames);
 3204 
 3205         case IFCOUNTER_IQDROPS:
 3206                 return (s->rx_ovflow0 + s->rx_ovflow1 + s->rx_ovflow2 +
 3207                     s->rx_ovflow3 + s->rx_trunc0 + s->rx_trunc1 + s->rx_trunc2 +
 3208                     s->rx_trunc3 + pi->tnl_cong_drops);
 3209 
 3210         case IFCOUNTER_OQDROPS: {
 3211                 uint64_t drops;
 3212 
 3213                 drops = s->tx_drop;
 3214                 if (vi->flags & VI_INIT_DONE) {
 3215                         int i;
 3216                         struct sge_txq *txq;
 3217 
 3218                         for_each_txq(vi, i, txq)
 3219                                 drops += counter_u64_fetch(txq->r->dropped);
 3220                 }
 3221 
 3222                 return (drops);
 3223 
 3224         }
 3225 
 3226         default:
 3227                 return (if_get_counter_default(ifp, c));
 3228         }
 3229 }
 3230 
 3231 #if defined(KERN_TLS) || defined(RATELIMIT)
 3232 static int
 3233 cxgbe_snd_tag_alloc(struct ifnet *ifp, union if_snd_tag_alloc_params *params,
 3234     struct m_snd_tag **pt)
 3235 {
 3236         int error;
 3237 
 3238         switch (params->hdr.type) {
 3239 #ifdef RATELIMIT
 3240         case IF_SND_TAG_TYPE_RATE_LIMIT:
 3241                 error = cxgbe_rate_tag_alloc(ifp, params, pt);
 3242                 break;
 3243 #endif
 3244 #ifdef KERN_TLS
 3245         case IF_SND_TAG_TYPE_TLS:
 3246         {
 3247                 struct vi_info *vi = ifp->if_softc;
 3248 
 3249                 if (is_t6(vi->pi->adapter))
 3250                         error = t6_tls_tag_alloc(ifp, params, pt);
 3251                 else
 3252                         error = EOPNOTSUPP;
 3253                 break;
 3254         }
 3255 #endif
 3256         default:
 3257                 error = EOPNOTSUPP;
 3258         }
 3259         return (error);
 3260 }
 3261 #endif
 3262 
 3263 /*
 3264  * The kernel picks a media from the list we had provided but we still validate
 3265  * the requeste.
 3266  */
 3267 int
 3268 cxgbe_media_change(struct ifnet *ifp)
 3269 {
 3270         struct vi_info *vi = ifp->if_softc;
 3271         struct port_info *pi = vi->pi;
 3272         struct ifmedia *ifm = &pi->media;
 3273         struct link_config *lc = &pi->link_cfg;
 3274         struct adapter *sc = pi->adapter;
 3275         int rc;
 3276 
 3277         rc = begin_synchronized_op(sc, NULL, SLEEP_OK | INTR_OK, "t4mec");
 3278         if (rc != 0)
 3279                 return (rc);
 3280         PORT_LOCK(pi);
 3281         if (IFM_SUBTYPE(ifm->ifm_media) == IFM_AUTO) {
 3282                 /* ifconfig .. media autoselect */
 3283                 if (!(lc->pcaps & FW_PORT_CAP32_ANEG)) {
 3284                         rc = ENOTSUP; /* AN not supported by transceiver */
 3285                         goto done;
 3286                 }
 3287                 lc->requested_aneg = AUTONEG_ENABLE;
 3288                 lc->requested_speed = 0;
 3289                 lc->requested_fc |= PAUSE_AUTONEG;
 3290         } else {
 3291                 lc->requested_aneg = AUTONEG_DISABLE;
 3292                 lc->requested_speed =
 3293                     ifmedia_baudrate(ifm->ifm_media) / 1000000;
 3294                 lc->requested_fc = 0;
 3295                 if (IFM_OPTIONS(ifm->ifm_media) & IFM_ETH_RXPAUSE)
 3296                         lc->requested_fc |= PAUSE_RX;
 3297                 if (IFM_OPTIONS(ifm->ifm_media) & IFM_ETH_TXPAUSE)
 3298                         lc->requested_fc |= PAUSE_TX;
 3299         }
 3300         if (pi->up_vis > 0 && !hw_off_limits(sc)) {
 3301                 fixup_link_config(pi);
 3302                 rc = apply_link_config(pi);
 3303         }
 3304 done:
 3305         PORT_UNLOCK(pi);
 3306         end_synchronized_op(sc, 0);
 3307         return (rc);
 3308 }
 3309 
 3310 /*
 3311  * Base media word (without ETHER, pause, link active, etc.) for the port at the
 3312  * given speed.
 3313  */
 3314 static int
 3315 port_mword(struct port_info *pi, uint32_t speed)
 3316 {
 3317 
 3318         MPASS(speed & M_FW_PORT_CAP32_SPEED);
 3319         MPASS(powerof2(speed));
 3320 
 3321         switch(pi->port_type) {
 3322         case FW_PORT_TYPE_BT_SGMII:
 3323         case FW_PORT_TYPE_BT_XFI:
 3324         case FW_PORT_TYPE_BT_XAUI:
 3325                 /* BaseT */
 3326                 switch (speed) {
 3327                 case FW_PORT_CAP32_SPEED_100M:
 3328                         return (IFM_100_T);
 3329                 case FW_PORT_CAP32_SPEED_1G:
 3330                         return (IFM_1000_T);
 3331                 case FW_PORT_CAP32_SPEED_10G:
 3332                         return (IFM_10G_T);
 3333                 }
 3334                 break;
 3335         case FW_PORT_TYPE_KX4:
 3336                 if (speed == FW_PORT_CAP32_SPEED_10G)
 3337                         return (IFM_10G_KX4);
 3338                 break;
 3339         case FW_PORT_TYPE_CX4:
 3340                 if (speed == FW_PORT_CAP32_SPEED_10G)
 3341                         return (IFM_10G_CX4);
 3342                 break;
 3343         case FW_PORT_TYPE_KX:
 3344                 if (speed == FW_PORT_CAP32_SPEED_1G)
 3345                         return (IFM_1000_KX);
 3346                 break;
 3347         case FW_PORT_TYPE_KR:
 3348         case FW_PORT_TYPE_BP_AP:
 3349         case FW_PORT_TYPE_BP4_AP:
 3350         case FW_PORT_TYPE_BP40_BA:
 3351         case FW_PORT_TYPE_KR4_100G:
 3352         case FW_PORT_TYPE_KR_SFP28:
 3353         case FW_PORT_TYPE_KR_XLAUI:
 3354                 switch (speed) {
 3355                 case FW_PORT_CAP32_SPEED_1G:
 3356                         return (IFM_1000_KX);
 3357                 case FW_PORT_CAP32_SPEED_10G:
 3358                         return (IFM_10G_KR);
 3359                 case FW_PORT_CAP32_SPEED_25G:
 3360                         return (IFM_25G_KR);
 3361                 case FW_PORT_CAP32_SPEED_40G:
 3362                         return (IFM_40G_KR4);
 3363                 case FW_PORT_CAP32_SPEED_50G:
 3364                         return (IFM_50G_KR2);
 3365                 case FW_PORT_CAP32_SPEED_100G:
 3366                         return (IFM_100G_KR4);
 3367                 }
 3368                 break;
 3369         case FW_PORT_TYPE_FIBER_XFI:
 3370         case FW_PORT_TYPE_FIBER_XAUI:
 3371         case FW_PORT_TYPE_SFP:
 3372         case FW_PORT_TYPE_QSFP_10G:
 3373         case FW_PORT_TYPE_QSA:
 3374         case FW_PORT_TYPE_QSFP:
 3375         case FW_PORT_TYPE_CR4_QSFP:
 3376         case FW_PORT_TYPE_CR_QSFP:
 3377         case FW_PORT_TYPE_CR2_QSFP:
 3378         case FW_PORT_TYPE_SFP28:
 3379                 /* Pluggable transceiver */
 3380                 switch (pi->mod_type) {
 3381                 case FW_PORT_MOD_TYPE_LR:
 3382                         switch (speed) {
 3383                         case FW_PORT_CAP32_SPEED_1G:
 3384                                 return (IFM_1000_LX);
 3385                         case FW_PORT_CAP32_SPEED_10G:
 3386                                 return (IFM_10G_LR);
 3387                         case FW_PORT_CAP32_SPEED_25G:
 3388                                 return (IFM_25G_LR);
 3389                         case FW_PORT_CAP32_SPEED_40G:
 3390                                 return (IFM_40G_LR4);
 3391                         case FW_PORT_CAP32_SPEED_50G:
 3392                                 return (IFM_50G_LR2);
 3393                         case FW_PORT_CAP32_SPEED_100G:
 3394                                 return (IFM_100G_LR4);
 3395                         }
 3396                         break;
 3397                 case FW_PORT_MOD_TYPE_SR:
 3398                         switch (speed) {
 3399                         case FW_PORT_CAP32_SPEED_1G:
 3400                                 return (IFM_1000_SX);
 3401                         case FW_PORT_CAP32_SPEED_10G:
 3402                                 return (IFM_10G_SR);
 3403                         case FW_PORT_CAP32_SPEED_25G:
 3404                                 return (IFM_25G_SR);
 3405                         case FW_PORT_CAP32_SPEED_40G:
 3406                                 return (IFM_40G_SR4);
 3407                         case FW_PORT_CAP32_SPEED_50G:
 3408                                 return (IFM_50G_SR2);
 3409                         case FW_PORT_CAP32_SPEED_100G:
 3410                                 return (IFM_100G_SR4);
 3411                         }
 3412                         break;
 3413                 case FW_PORT_MOD_TYPE_ER:
 3414                         if (speed == FW_PORT_CAP32_SPEED_10G)
 3415                                 return (IFM_10G_ER);
 3416                         break;
 3417                 case FW_PORT_MOD_TYPE_TWINAX_PASSIVE:
 3418                 case FW_PORT_MOD_TYPE_TWINAX_ACTIVE:
 3419                         switch (speed) {
 3420                         case FW_PORT_CAP32_SPEED_1G:
 3421                                 return (IFM_1000_CX);
 3422                         case FW_PORT_CAP32_SPEED_10G:
 3423                                 return (IFM_10G_TWINAX);
 3424                         case FW_PORT_CAP32_SPEED_25G:
 3425                                 return (IFM_25G_CR);
 3426                         case FW_PORT_CAP32_SPEED_40G:
 3427                                 return (IFM_40G_CR4);
 3428                         case FW_PORT_CAP32_SPEED_50G:
 3429                                 return (IFM_50G_CR2);
 3430                         case FW_PORT_CAP32_SPEED_100G:
 3431                                 return (IFM_100G_CR4);
 3432                         }
 3433                         break;
 3434                 case FW_PORT_MOD_TYPE_LRM:
 3435                         if (speed == FW_PORT_CAP32_SPEED_10G)
 3436                                 return (IFM_10G_LRM);
 3437                         break;
 3438                 case FW_PORT_MOD_TYPE_NA:
 3439                         MPASS(0);       /* Not pluggable? */
 3440                         /* fall throough */
 3441                 case FW_PORT_MOD_TYPE_ERROR:
 3442                 case FW_PORT_MOD_TYPE_UNKNOWN:
 3443                 case FW_PORT_MOD_TYPE_NOTSUPPORTED:
 3444                         break;
 3445                 case FW_PORT_MOD_TYPE_NONE:
 3446                         return (IFM_NONE);
 3447                 }
 3448                 break;
 3449         case FW_PORT_TYPE_NONE:
 3450                 return (IFM_NONE);
 3451         }
 3452 
 3453         return (IFM_UNKNOWN);
 3454 }
 3455 
 3456 void
 3457 cxgbe_media_status(struct ifnet *ifp, struct ifmediareq *ifmr)
 3458 {
 3459         struct vi_info *vi = ifp->if_softc;
 3460         struct port_info *pi = vi->pi;
 3461         struct adapter *sc = pi->adapter;
 3462         struct link_config *lc = &pi->link_cfg;
 3463 
 3464         if (begin_synchronized_op(sc, NULL, SLEEP_OK | INTR_OK, "t4med") != 0)
 3465                 return;
 3466         PORT_LOCK(pi);
 3467 
 3468         if (pi->up_vis == 0 && !hw_off_limits(sc)) {
 3469                 /*
 3470                  * If all the interfaces are administratively down the firmware
 3471                  * does not report transceiver changes.  Refresh port info here
 3472                  * so that ifconfig displays accurate ifmedia at all times.
 3473                  * This is the only reason we have a synchronized op in this
 3474                  * function.  Just PORT_LOCK would have been enough otherwise.
 3475                  */
 3476                 t4_update_port_info(pi);
 3477                 build_medialist(pi);
 3478         }
 3479 
 3480         /* ifm_status */
 3481         ifmr->ifm_status = IFM_AVALID;
 3482         if (lc->link_ok == false)
 3483                 goto done;
 3484         ifmr->ifm_status |= IFM_ACTIVE;
 3485 
 3486         /* ifm_active */
 3487         ifmr->ifm_active = IFM_ETHER | IFM_FDX;
 3488         ifmr->ifm_active &= ~(IFM_ETH_TXPAUSE | IFM_ETH_RXPAUSE);
 3489         if (lc->fc & PAUSE_RX)
 3490                 ifmr->ifm_active |= IFM_ETH_RXPAUSE;
 3491         if (lc->fc & PAUSE_TX)
 3492                 ifmr->ifm_active |= IFM_ETH_TXPAUSE;
 3493         ifmr->ifm_active |= port_mword(pi, speed_to_fwcap(lc->speed));
 3494 done:
 3495         PORT_UNLOCK(pi);
 3496         end_synchronized_op(sc, 0);
 3497 }
 3498 
 3499 static int
 3500 vcxgbe_probe(device_t dev)
 3501 {
 3502         char buf[128];
 3503         struct vi_info *vi = device_get_softc(dev);
 3504 
 3505         snprintf(buf, sizeof(buf), "port %d vi %td", vi->pi->port_id,
 3506             vi - vi->pi->vi);
 3507         device_set_desc_copy(dev, buf);
 3508 
 3509         return (BUS_PROBE_DEFAULT);
 3510 }
 3511 
 3512 static int
 3513 alloc_extra_vi(struct adapter *sc, struct port_info *pi, struct vi_info *vi)
 3514 {
 3515         int func, index, rc;
 3516         uint32_t param, val;
 3517 
 3518         ASSERT_SYNCHRONIZED_OP(sc);
 3519 
 3520         index = vi - pi->vi;
 3521         MPASS(index > 0);       /* This function deals with _extra_ VIs only */
 3522         KASSERT(index < nitems(vi_mac_funcs),
 3523             ("%s: VI %s doesn't have a MAC func", __func__,
 3524             device_get_nameunit(vi->dev)));
 3525         func = vi_mac_funcs[index];
 3526         rc = t4_alloc_vi_func(sc, sc->mbox, pi->tx_chan, sc->pf, 0, 1,
 3527             vi->hw_addr, &vi->rss_size, &vi->vfvld, &vi->vin, func, 0);
 3528         if (rc < 0) {
 3529                 CH_ERR(vi, "failed to allocate virtual interface %d"
 3530                     "for port %d: %d\n", index, pi->port_id, -rc);
 3531                 return (-rc);
 3532         }
 3533         vi->viid = rc;
 3534 
 3535         if (vi->rss_size == 1) {
 3536                 /*
 3537                  * This VI didn't get a slice of the RSS table.  Reduce the
 3538                  * number of VIs being created (hw.cxgbe.num_vis) or modify the
 3539                  * configuration file (nvi, rssnvi for this PF) if this is a
 3540                  * problem.
 3541                  */
 3542                 device_printf(vi->dev, "RSS table not available.\n");
 3543                 vi->rss_base = 0xffff;
 3544 
 3545                 return (0);
 3546         }
 3547 
 3548         param = V_FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) |
 3549             V_FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_RSSINFO) |
 3550             V_FW_PARAMS_PARAM_YZ(vi->viid);
 3551         rc = t4_query_params(sc, sc->mbox, sc->pf, 0, 1, &param, &val);
 3552         if (rc)
 3553                 vi->rss_base = 0xffff;
 3554         else {
 3555                 MPASS((val >> 16) == vi->rss_size);
 3556                 vi->rss_base = val & 0xffff;
 3557         }
 3558 
 3559         return (0);
 3560 }
 3561 
 3562 static int
 3563 vcxgbe_attach(device_t dev)
 3564 {
 3565         struct vi_info *vi;
 3566         struct port_info *pi;
 3567         struct adapter *sc;
 3568         int rc;
 3569 
 3570         vi = device_get_softc(dev);
 3571         pi = vi->pi;
 3572         sc = pi->adapter;
 3573 
 3574         rc = begin_synchronized_op(sc, vi, SLEEP_OK | INTR_OK, "t4via");
 3575         if (rc)
 3576                 return (rc);
 3577         rc = alloc_extra_vi(sc, pi, vi);
 3578         end_synchronized_op(sc, 0);
 3579         if (rc)
 3580                 return (rc);
 3581 
 3582         rc = cxgbe_vi_attach(dev, vi);
 3583         if (rc) {
 3584                 t4_free_vi(sc, sc->mbox, sc->pf, 0, vi->viid);
 3585                 return (rc);
 3586         }
 3587         return (0);
 3588 }
 3589 
 3590 static int
 3591 vcxgbe_detach(device_t dev)
 3592 {
 3593         struct vi_info *vi;
 3594         struct adapter *sc;
 3595 
 3596         vi = device_get_softc(dev);
 3597         sc = vi->adapter;
 3598 
 3599         doom_vi(sc, vi);
 3600 
 3601         cxgbe_vi_detach(vi);
 3602         t4_free_vi(sc, sc->mbox, sc->pf, 0, vi->viid);
 3603 
 3604         end_synchronized_op(sc, 0);
 3605 
 3606         return (0);
 3607 }
 3608 
 3609 static struct callout fatal_callout;
 3610 static struct taskqueue *reset_tq;
 3611 
 3612 static void
 3613 delayed_panic(void *arg)
 3614 {
 3615         struct adapter *sc = arg;
 3616 
 3617         panic("%s: panic on fatal error", device_get_nameunit(sc->dev));
 3618 }
 3619 
 3620 static void
 3621 fatal_error_task(void *arg, int pending)
 3622 {
 3623         struct adapter *sc = arg;
 3624         int rc;
 3625 
 3626 #ifdef TCP_OFFLOAD
 3627         t4_async_event(sc);
 3628 #endif
 3629         if (atomic_testandclear_int(&sc->error_flags, ilog2(ADAP_CIM_ERR))) {
 3630                 dump_cim_regs(sc);
 3631                 dump_cimla(sc);
 3632                 dump_devlog(sc);
 3633         }
 3634 
 3635         if (t4_reset_on_fatal_err) {
 3636                 CH_ALERT(sc, "resetting on fatal error.\n");
 3637                 rc = reset_adapter(sc);
 3638                 if (rc == 0 && t4_panic_on_fatal_err) {
 3639                         CH_ALERT(sc, "reset was successful, "
 3640                             "system will NOT panic.\n");
 3641                         return;
 3642                 }
 3643         }
 3644 
 3645         if (t4_panic_on_fatal_err) {
 3646                 CH_ALERT(sc, "panicking on fatal error (after 30s).\n");
 3647                 callout_reset(&fatal_callout, hz * 30, delayed_panic, sc);
 3648         }
 3649 }
 3650 
 3651 void
 3652 t4_fatal_err(struct adapter *sc, bool fw_error)
 3653 {
 3654         const bool verbose = (sc->debug_flags & DF_VERBOSE_SLOWINTR) != 0;
 3655 
 3656         stop_adapter(sc);
 3657         if (atomic_testandset_int(&sc->error_flags, ilog2(ADAP_FATAL_ERR)))
 3658                 return;
 3659         if (fw_error) {
 3660                 /*
 3661                  * We are here because of a firmware error/timeout and not
 3662                  * because of a hardware interrupt.  It is possible (although
 3663                  * not very likely) that an error interrupt was also raised but
 3664                  * this thread ran first and inhibited t4_intr_err.  We walk the
 3665                  * main INT_CAUSE registers here to make sure we haven't missed
 3666                  * anything interesting.
 3667                  */
 3668                 t4_slow_intr_handler(sc, verbose);
 3669                 atomic_set_int(&sc->error_flags, ADAP_CIM_ERR);
 3670         }
 3671         t4_report_fw_error(sc);
 3672         log(LOG_ALERT, "%s: encountered fatal error, adapter stopped (%d).\n",
 3673             device_get_nameunit(sc->dev), fw_error);
 3674         taskqueue_enqueue(reset_tq, &sc->fatal_error_task);
 3675 }
 3676 
 3677 void
 3678 t4_add_adapter(struct adapter *sc)
 3679 {
 3680         sx_xlock(&t4_list_lock);
 3681         SLIST_INSERT_HEAD(&t4_list, sc, link);
 3682         sx_xunlock(&t4_list_lock);
 3683 }
 3684 
 3685 int
 3686 t4_map_bars_0_and_4(struct adapter *sc)
 3687 {
 3688         sc->regs_rid = PCIR_BAR(0);
 3689         sc->regs_res = bus_alloc_resource_any(sc->dev, SYS_RES_MEMORY,
 3690             &sc->regs_rid, RF_ACTIVE);
 3691         if (sc->regs_res == NULL) {
 3692                 device_printf(sc->dev, "cannot map registers.\n");
 3693                 return (ENXIO);
 3694         }
 3695         sc->bt = rman_get_bustag(sc->regs_res);
 3696         sc->bh = rman_get_bushandle(sc->regs_res);
 3697         sc->mmio_len = rman_get_size(sc->regs_res);
 3698         setbit(&sc->doorbells, DOORBELL_KDB);
 3699 
 3700         sc->msix_rid = PCIR_BAR(4);
 3701         sc->msix_res = bus_alloc_resource_any(sc->dev, SYS_RES_MEMORY,
 3702             &sc->msix_rid, RF_ACTIVE);
 3703         if (sc->msix_res == NULL) {
 3704                 device_printf(sc->dev, "cannot map MSI-X BAR.\n");
 3705                 return (ENXIO);
 3706         }
 3707 
 3708         return (0);
 3709 }
 3710 
 3711 int
 3712 t4_map_bar_2(struct adapter *sc)
 3713 {
 3714 
 3715         /*
 3716          * T4: only iWARP driver uses the userspace doorbells.  There is no need
 3717          * to map it if RDMA is disabled.
 3718          */
 3719         if (is_t4(sc) && sc->rdmacaps == 0)
 3720                 return (0);
 3721 
 3722         sc->udbs_rid = PCIR_BAR(2);
 3723         sc->udbs_res = bus_alloc_resource_any(sc->dev, SYS_RES_MEMORY,
 3724             &sc->udbs_rid, RF_ACTIVE);
 3725         if (sc->udbs_res == NULL) {
 3726                 device_printf(sc->dev, "cannot map doorbell BAR.\n");
 3727                 return (ENXIO);
 3728         }
 3729         sc->udbs_base = rman_get_virtual(sc->udbs_res);
 3730 
 3731         if (chip_id(sc) >= CHELSIO_T5) {
 3732                 setbit(&sc->doorbells, DOORBELL_UDB);
 3733 #if defined(__i386__) || defined(__amd64__)
 3734                 if (t5_write_combine) {
 3735                         int rc, mode;
 3736 
 3737                         /*
 3738                          * Enable write combining on BAR2.  This is the
 3739                          * userspace doorbell BAR and is split into 128B
 3740                          * (UDBS_SEG_SIZE) doorbell regions, each associated
 3741                          * with an egress queue.  The first 64B has the doorbell
 3742                          * and the second 64B can be used to submit a tx work
 3743                          * request with an implicit doorbell.
 3744                          */
 3745 
 3746                         rc = pmap_change_attr((vm_offset_t)sc->udbs_base,
 3747                             rman_get_size(sc->udbs_res), PAT_WRITE_COMBINING);
 3748                         if (rc == 0) {
 3749                                 clrbit(&sc->doorbells, DOORBELL_UDB);
 3750                                 setbit(&sc->doorbells, DOORBELL_WCWR);
 3751                                 setbit(&sc->doorbells, DOORBELL_UDBWC);
 3752                         } else {
 3753                                 device_printf(sc->dev,
 3754                                     "couldn't enable write combining: %d\n",
 3755                                     rc);
 3756                         }
 3757 
 3758                         mode = is_t5(sc) ? V_STATMODE(0) : V_T6_STATMODE(0);
 3759                         t4_write_reg(sc, A_SGE_STAT_CFG,
 3760                             V_STATSOURCE_T5(7) | mode);
 3761                 }
 3762 #endif
 3763         }
 3764         sc->iwt.wc_en = isset(&sc->doorbells, DOORBELL_UDBWC) ? 1 : 0;
 3765 
 3766         return (0);
 3767 }
 3768 
 3769 struct memwin_init {
 3770         uint32_t base;
 3771         uint32_t aperture;
 3772 };
 3773 
 3774 static const struct memwin_init t4_memwin[NUM_MEMWIN] = {
 3775         { MEMWIN0_BASE, MEMWIN0_APERTURE },
 3776         { MEMWIN1_BASE, MEMWIN1_APERTURE },
 3777         { MEMWIN2_BASE_T4, MEMWIN2_APERTURE_T4 }
 3778 };
 3779 
 3780 static const struct memwin_init t5_memwin[NUM_MEMWIN] = {
 3781         { MEMWIN0_BASE, MEMWIN0_APERTURE },
 3782         { MEMWIN1_BASE, MEMWIN1_APERTURE },
 3783         { MEMWIN2_BASE_T5, MEMWIN2_APERTURE_T5 },
 3784 };
 3785 
 3786 static void
 3787 setup_memwin(struct adapter *sc)
 3788 {
 3789         const struct memwin_init *mw_init;
 3790         struct memwin *mw;
 3791         int i;
 3792         uint32_t bar0;
 3793 
 3794         if (is_t4(sc)) {
 3795                 /*
 3796                  * Read low 32b of bar0 indirectly via the hardware backdoor
 3797                  * mechanism.  Works from within PCI passthrough environments
 3798                  * too, where rman_get_start() can return a different value.  We
 3799                  * need to program the T4 memory window decoders with the actual
 3800                  * addresses that will be coming across the PCIe link.
 3801                  */
 3802                 bar0 = t4_hw_pci_read_cfg4(sc, PCIR_BAR(0));
 3803                 bar0 &= (uint32_t) PCIM_BAR_MEM_BASE;
 3804 
 3805                 mw_init = &t4_memwin[0];
 3806         } else {
 3807                 /* T5+ use the relative offset inside the PCIe BAR */
 3808                 bar0 = 0;
 3809 
 3810                 mw_init = &t5_memwin[0];
 3811         }
 3812 
 3813         for (i = 0, mw = &sc->memwin[0]; i < NUM_MEMWIN; i++, mw_init++, mw++) {
 3814                 if (!rw_initialized(&mw->mw_lock)) {
 3815                         rw_init(&mw->mw_lock, "memory window access");
 3816                         mw->mw_base = mw_init->base;
 3817                         mw->mw_aperture = mw_init->aperture;
 3818                         mw->mw_curpos = 0;
 3819                 }
 3820                 t4_write_reg(sc,
 3821                     PCIE_MEM_ACCESS_REG(A_PCIE_MEM_ACCESS_BASE_WIN, i),
 3822                     (mw->mw_base + bar0) | V_BIR(0) |
 3823                     V_WINDOW(ilog2(mw->mw_aperture) - 10));
 3824                 rw_wlock(&mw->mw_lock);
 3825                 position_memwin(sc, i, mw->mw_curpos);
 3826                 rw_wunlock(&mw->mw_lock);
 3827         }
 3828 
 3829         /* flush */
 3830         t4_read_reg(sc, PCIE_MEM_ACCESS_REG(A_PCIE_MEM_ACCESS_BASE_WIN, 2));
 3831 }
 3832 
 3833 /*
 3834  * Positions the memory window at the given address in the card's address space.
 3835  * There are some alignment requirements and the actual position may be at an
 3836  * address prior to the requested address.  mw->mw_curpos always has the actual
 3837  * position of the window.
 3838  */
 3839 static void
 3840 position_memwin(struct adapter *sc, int idx, uint32_t addr)
 3841 {
 3842         struct memwin *mw;
 3843         uint32_t pf;
 3844         uint32_t reg;
 3845 
 3846         MPASS(idx >= 0 && idx < NUM_MEMWIN);
 3847         mw = &sc->memwin[idx];
 3848         rw_assert(&mw->mw_lock, RA_WLOCKED);
 3849 
 3850         if (is_t4(sc)) {
 3851                 pf = 0;
 3852                 mw->mw_curpos = addr & ~0xf;    /* start must be 16B aligned */
 3853         } else {
 3854                 pf = V_PFNUM(sc->pf);
 3855                 mw->mw_curpos = addr & ~0x7f;   /* start must be 128B aligned */
 3856         }
 3857         reg = PCIE_MEM_ACCESS_REG(A_PCIE_MEM_ACCESS_OFFSET, idx);
 3858         t4_write_reg(sc, reg, mw->mw_curpos | pf);
 3859         t4_read_reg(sc, reg);   /* flush */
 3860 }
 3861 
 3862 int
 3863 rw_via_memwin(struct adapter *sc, int idx, uint32_t addr, uint32_t *val,
 3864     int len, int rw)
 3865 {
 3866         struct memwin *mw;
 3867         uint32_t mw_end, v;
 3868 
 3869         MPASS(idx >= 0 && idx < NUM_MEMWIN);
 3870 
 3871         /* Memory can only be accessed in naturally aligned 4 byte units */
 3872         if (addr & 3 || len & 3 || len <= 0)
 3873                 return (EINVAL);
 3874 
 3875         mw = &sc->memwin[idx];
 3876         while (len > 0) {
 3877                 rw_rlock(&mw->mw_lock);
 3878                 mw_end = mw->mw_curpos + mw->mw_aperture;
 3879                 if (addr >= mw_end || addr < mw->mw_curpos) {
 3880                         /* Will need to reposition the window */
 3881                         if (!rw_try_upgrade(&mw->mw_lock)) {
 3882                                 rw_runlock(&mw->mw_lock);
 3883                                 rw_wlock(&mw->mw_lock);
 3884                         }
 3885                         rw_assert(&mw->mw_lock, RA_WLOCKED);
 3886                         position_memwin(sc, idx, addr);
 3887                         rw_downgrade(&mw->mw_lock);
 3888                         mw_end = mw->mw_curpos + mw->mw_aperture;
 3889                 }
 3890                 rw_assert(&mw->mw_lock, RA_RLOCKED);
 3891                 while (addr < mw_end && len > 0) {
 3892                         if (rw == 0) {
 3893                                 v = t4_read_reg(sc, mw->mw_base + addr -
 3894                                     mw->mw_curpos);
 3895                                 *val++ = le32toh(v);
 3896                         } else {
 3897                                 v = *val++;
 3898                                 t4_write_reg(sc, mw->mw_base + addr -
 3899                                     mw->mw_curpos, htole32(v));
 3900                         }
 3901                         addr += 4;
 3902                         len -= 4;
 3903                 }
 3904                 rw_runlock(&mw->mw_lock);
 3905         }
 3906 
 3907         return (0);
 3908 }
 3909 
 3910 static void
 3911 t4_init_atid_table(struct adapter *sc)
 3912 {
 3913         struct tid_info *t;
 3914         int i;
 3915 
 3916         t = &sc->tids;
 3917         if (t->natids == 0)
 3918                 return;
 3919 
 3920         MPASS(t->atid_tab == NULL);
 3921 
 3922         t->atid_tab = malloc(t->natids * sizeof(*t->atid_tab), M_CXGBE,
 3923             M_ZERO | M_WAITOK);
 3924         mtx_init(&t->atid_lock, "atid lock", NULL, MTX_DEF);
 3925         t->afree = t->atid_tab;
 3926         t->atids_in_use = 0;
 3927         for (i = 1; i < t->natids; i++)
 3928                 t->atid_tab[i - 1].next = &t->atid_tab[i];
 3929         t->atid_tab[t->natids - 1].next = NULL;
 3930 }
 3931 
 3932 static void
 3933 t4_free_atid_table(struct adapter *sc)
 3934 {
 3935         struct tid_info *t;
 3936 
 3937         t = &sc->tids;
 3938 
 3939         KASSERT(t->atids_in_use == 0,
 3940             ("%s: %d atids still in use.", __func__, t->atids_in_use));
 3941 
 3942         if (mtx_initialized(&t->atid_lock))
 3943                 mtx_destroy(&t->atid_lock);
 3944         free(t->atid_tab, M_CXGBE);
 3945         t->atid_tab = NULL;
 3946 }
 3947 
 3948 int
 3949 alloc_atid(struct adapter *sc, void *ctx)
 3950 {
 3951         struct tid_info *t = &sc->tids;
 3952         int atid = -1;
 3953 
 3954         mtx_lock(&t->atid_lock);
 3955         if (t->afree) {
 3956                 union aopen_entry *p = t->afree;
 3957 
 3958                 atid = p - t->atid_tab;
 3959                 MPASS(atid <= M_TID_TID);
 3960                 t->afree = p->next;
 3961                 p->data = ctx;
 3962                 t->atids_in_use++;
 3963         }
 3964         mtx_unlock(&t->atid_lock);
 3965         return (atid);
 3966 }
 3967 
 3968 void *
 3969 lookup_atid(struct adapter *sc, int atid)
 3970 {
 3971         struct tid_info *t = &sc->tids;
 3972 
 3973         return (t->atid_tab[atid].data);
 3974 }
 3975 
 3976 void
 3977 free_atid(struct adapter *sc, int atid)
 3978 {
 3979         struct tid_info *t = &sc->tids;
 3980         union aopen_entry *p = &t->atid_tab[atid];
 3981 
 3982         mtx_lock(&t->atid_lock);
 3983         p->next = t->afree;
 3984         t->afree = p;
 3985         t->atids_in_use--;
 3986         mtx_unlock(&t->atid_lock);
 3987 }
 3988 
 3989 static void
 3990 queue_tid_release(struct adapter *sc, int tid)
 3991 {
 3992 
 3993         CXGBE_UNIMPLEMENTED("deferred tid release");
 3994 }
 3995 
 3996 void
 3997 release_tid(struct adapter *sc, int tid, struct sge_wrq *ctrlq)
 3998 {
 3999         struct wrqe *wr;
 4000         struct cpl_tid_release *req;
 4001 
 4002         wr = alloc_wrqe(sizeof(*req), ctrlq);
 4003         if (wr == NULL) {
 4004                 queue_tid_release(sc, tid);     /* defer */
 4005                 return;
 4006         }
 4007         req = wrtod(wr);
 4008 
 4009         INIT_TP_WR_MIT_CPL(req, CPL_TID_RELEASE, tid);
 4010 
 4011         t4_wrq_tx(sc, wr);
 4012 }
 4013 
 4014 static int
 4015 t4_range_cmp(const void *a, const void *b)
 4016 {
 4017         return ((const struct t4_range *)a)->start -
 4018                ((const struct t4_range *)b)->start;
 4019 }
 4020 
 4021 /*
 4022  * Verify that the memory range specified by the addr/len pair is valid within
 4023  * the card's address space.
 4024  */
 4025 static int
 4026 validate_mem_range(struct adapter *sc, uint32_t addr, uint32_t len)
 4027 {
 4028         struct t4_range mem_ranges[4], *r, *next;
 4029         uint32_t em, addr_len;
 4030         int i, n, remaining;
 4031 
 4032         /* Memory can only be accessed in naturally aligned 4 byte units */
 4033         if (addr & 3 || len & 3 || len == 0)
 4034                 return (EINVAL);
 4035 
 4036         /* Enabled memories */
 4037         em = t4_read_reg(sc, A_MA_TARGET_MEM_ENABLE);
 4038 
 4039         r = &mem_ranges[0];
 4040         n = 0;
 4041         bzero(r, sizeof(mem_ranges));
 4042         if (em & F_EDRAM0_ENABLE) {
 4043                 addr_len = t4_read_reg(sc, A_MA_EDRAM0_BAR);
 4044                 r->size = G_EDRAM0_SIZE(addr_len) << 20;
 4045                 if (r->size > 0) {
 4046                         r->start = G_EDRAM0_BASE(addr_len) << 20;
 4047                         if (addr >= r->start &&
 4048                             addr + len <= r->start + r->size)
 4049                                 return (0);
 4050                         r++;
 4051                         n++;
 4052                 }
 4053         }
 4054         if (em & F_EDRAM1_ENABLE) {
 4055                 addr_len = t4_read_reg(sc, A_MA_EDRAM1_BAR);
 4056                 r->size = G_EDRAM1_SIZE(addr_len) << 20;
 4057                 if (r->size > 0) {
 4058                         r->start = G_EDRAM1_BASE(addr_len) << 20;
 4059                         if (addr >= r->start &&
 4060                             addr + len <= r->start + r->size)
 4061                                 return (0);
 4062                         r++;
 4063                         n++;
 4064                 }
 4065         }
 4066         if (em & F_EXT_MEM_ENABLE) {
 4067                 addr_len = t4_read_reg(sc, A_MA_EXT_MEMORY_BAR);
 4068                 r->size = G_EXT_MEM_SIZE(addr_len) << 20;
 4069                 if (r->size > 0) {
 4070                         r->start = G_EXT_MEM_BASE(addr_len) << 20;
 4071                         if (addr >= r->start &&
 4072                             addr + len <= r->start + r->size)
 4073                                 return (0);
 4074                         r++;
 4075                         n++;
 4076                 }
 4077         }
 4078         if (is_t5(sc) && em & F_EXT_MEM1_ENABLE) {
 4079                 addr_len = t4_read_reg(sc, A_MA_EXT_MEMORY1_BAR);
 4080                 r->size = G_EXT_MEM1_SIZE(addr_len) << 20;
 4081                 if (r->size > 0) {
 4082                         r->start = G_EXT_MEM1_BASE(addr_len) << 20;
 4083                         if (addr >= r->start &&
 4084                             addr + len <= r->start + r->size)
 4085                                 return (0);
 4086                         r++;
 4087                         n++;
 4088                 }
 4089         }
 4090         MPASS(n <= nitems(mem_ranges));
 4091 
 4092         if (n > 1) {
 4093                 /* Sort and merge the ranges. */
 4094                 qsort(mem_ranges, n, sizeof(struct t4_range), t4_range_cmp);
 4095 
 4096                 /* Start from index 0 and examine the next n - 1 entries. */
 4097                 r = &mem_ranges[0];
 4098                 for (remaining = n - 1; remaining > 0; remaining--, r++) {
 4099 
 4100                         MPASS(r->size > 0);     /* r is a valid entry. */
 4101                         next = r + 1;
 4102                         MPASS(next->size > 0);  /* and so is the next one. */
 4103 
 4104                         while (r->start + r->size >= next->start) {
 4105                                 /* Merge the next one into the current entry. */
 4106                                 r->size = max(r->start + r->size,
 4107                                     next->start + next->size) - r->start;
 4108                                 n--;    /* One fewer entry in total. */
 4109                                 if (--remaining == 0)
 4110                                         goto done;      /* short circuit */
 4111                                 next++;
 4112                         }
 4113                         if (next != r + 1) {
 4114                                 /*
 4115                                  * Some entries were merged into r and next
 4116                                  * points to the first valid entry that couldn't
 4117                                  * be merged.
 4118                                  */
 4119                                 MPASS(next->size > 0);  /* must be valid */
 4120                                 memcpy(r + 1, next, remaining * sizeof(*r));
 4121 #ifdef INVARIANTS
 4122                                 /*
 4123                                  * This so that the foo->size assertion in the
 4124                                  * next iteration of the loop do the right
 4125                                  * thing for entries that were pulled up and are
 4126                                  * no longer valid.
 4127                                  */
 4128                                 MPASS(n < nitems(mem_ranges));
 4129                                 bzero(&mem_ranges[n], (nitems(mem_ranges) - n) *
 4130                                     sizeof(struct t4_range));
 4131 #endif
 4132                         }
 4133                 }
 4134 done:
 4135                 /* Done merging the ranges. */
 4136                 MPASS(n > 0);
 4137                 r = &mem_ranges[0];
 4138                 for (i = 0; i < n; i++, r++) {
 4139                         if (addr >= r->start &&
 4140                             addr + len <= r->start + r->size)
 4141                                 return (0);
 4142                 }
 4143         }
 4144 
 4145         return (EFAULT);
 4146 }
 4147 
 4148 static int
 4149 fwmtype_to_hwmtype(int mtype)
 4150 {
 4151 
 4152         switch (mtype) {
 4153         case FW_MEMTYPE_EDC0:
 4154                 return (MEM_EDC0);
 4155         case FW_MEMTYPE_EDC1:
 4156                 return (MEM_EDC1);
 4157         case FW_MEMTYPE_EXTMEM:
 4158                 return (MEM_MC0);
 4159         case FW_MEMTYPE_EXTMEM1:
 4160                 return (MEM_MC1);
 4161         default:
 4162                 panic("%s: cannot translate fw mtype %d.", __func__, mtype);
 4163         }
 4164 }
 4165 
 4166 /*
 4167  * Verify that the memory range specified by the memtype/offset/len pair is
 4168  * valid and lies entirely within the memtype specified.  The global address of
 4169  * the start of the range is returned in addr.
 4170  */
 4171 static int
 4172 validate_mt_off_len(struct adapter *sc, int mtype, uint32_t off, uint32_t len,
 4173     uint32_t *addr)
 4174 {
 4175         uint32_t em, addr_len, maddr;
 4176 
 4177         /* Memory can only be accessed in naturally aligned 4 byte units */
 4178         if (off & 3 || len & 3 || len == 0)
 4179                 return (EINVAL);
 4180 
 4181         em = t4_read_reg(sc, A_MA_TARGET_MEM_ENABLE);
 4182         switch (fwmtype_to_hwmtype(mtype)) {
 4183         case MEM_EDC0:
 4184                 if (!(em & F_EDRAM0_ENABLE))
 4185                         return (EINVAL);
 4186                 addr_len = t4_read_reg(sc, A_MA_EDRAM0_BAR);
 4187                 maddr = G_EDRAM0_BASE(addr_len) << 20;
 4188                 break;
 4189         case MEM_EDC1:
 4190                 if (!(em & F_EDRAM1_ENABLE))
 4191                         return (EINVAL);
 4192                 addr_len = t4_read_reg(sc, A_MA_EDRAM1_BAR);
 4193                 maddr = G_EDRAM1_BASE(addr_len) << 20;
 4194                 break;
 4195         case MEM_MC:
 4196                 if (!(em & F_EXT_MEM_ENABLE))
 4197                         return (EINVAL);
 4198                 addr_len = t4_read_reg(sc, A_MA_EXT_MEMORY_BAR);
 4199                 maddr = G_EXT_MEM_BASE(addr_len) << 20;
 4200                 break;
 4201         case MEM_MC1:
 4202                 if (!is_t5(sc) || !(em & F_EXT_MEM1_ENABLE))
 4203                         return (EINVAL);
 4204                 addr_len = t4_read_reg(sc, A_MA_EXT_MEMORY1_BAR);
 4205                 maddr = G_EXT_MEM1_BASE(addr_len) << 20;
 4206                 break;
 4207         default:
 4208                 return (EINVAL);
 4209         }
 4210 
 4211         *addr = maddr + off;    /* global address */
 4212         return (validate_mem_range(sc, *addr, len));
 4213 }
 4214 
 4215 static int
 4216 fixup_devlog_params(struct adapter *sc)
 4217 {
 4218         struct devlog_params *dparams = &sc->params.devlog;
 4219         int rc;
 4220 
 4221         rc = validate_mt_off_len(sc, dparams->memtype, dparams->start,
 4222             dparams->size, &dparams->addr);
 4223 
 4224         return (rc);
 4225 }
 4226 
 4227 static void
 4228 update_nirq(struct intrs_and_queues *iaq, int nports)
 4229 {
 4230 
 4231         iaq->nirq = T4_EXTRA_INTR;
 4232         iaq->nirq += nports * max(iaq->nrxq, iaq->nnmrxq);
 4233         iaq->nirq += nports * iaq->nofldrxq;
 4234         iaq->nirq += nports * (iaq->num_vis - 1) *
 4235             max(iaq->nrxq_vi, iaq->nnmrxq_vi);
 4236         iaq->nirq += nports * (iaq->num_vis - 1) * iaq->nofldrxq_vi;
 4237 }
 4238 
 4239 /*
 4240  * Adjust requirements to fit the number of interrupts available.
 4241  */
 4242 static void
 4243 calculate_iaq(struct adapter *sc, struct intrs_and_queues *iaq, int itype,
 4244     int navail)
 4245 {
 4246         int old_nirq;
 4247         const int nports = sc->params.nports;
 4248 
 4249         MPASS(nports > 0);
 4250         MPASS(navail > 0);
 4251 
 4252         bzero(iaq, sizeof(*iaq));
 4253         iaq->intr_type = itype;
 4254         iaq->num_vis = t4_num_vis;
 4255         iaq->ntxq = t4_ntxq;
 4256         iaq->ntxq_vi = t4_ntxq_vi;
 4257         iaq->nrxq = t4_nrxq;
 4258         iaq->nrxq_vi = t4_nrxq_vi;
 4259 #if defined(TCP_OFFLOAD) || defined(RATELIMIT)
 4260         if (is_offload(sc) || is_ethoffload(sc)) {
 4261                 iaq->nofldtxq = t4_nofldtxq;
 4262                 iaq->nofldtxq_vi = t4_nofldtxq_vi;
 4263         }
 4264 #endif
 4265 #ifdef TCP_OFFLOAD
 4266         if (is_offload(sc)) {
 4267                 iaq->nofldrxq = t4_nofldrxq;
 4268                 iaq->nofldrxq_vi = t4_nofldrxq_vi;
 4269         }
 4270 #endif
 4271 #ifdef DEV_NETMAP
 4272         if (t4_native_netmap & NN_MAIN_VI) {
 4273                 iaq->nnmtxq = t4_nnmtxq;
 4274                 iaq->nnmrxq = t4_nnmrxq;
 4275         }
 4276         if (t4_native_netmap & NN_EXTRA_VI) {
 4277                 iaq->nnmtxq_vi = t4_nnmtxq_vi;
 4278                 iaq->nnmrxq_vi = t4_nnmrxq_vi;
 4279         }
 4280 #endif
 4281 
 4282         update_nirq(iaq, nports);
 4283         if (iaq->nirq <= navail &&
 4284             (itype != INTR_MSI || powerof2(iaq->nirq))) {
 4285                 /*
 4286                  * This is the normal case -- there are enough interrupts for
 4287                  * everything.
 4288                  */
 4289                 goto done;
 4290         }
 4291 
 4292         /*
 4293          * If extra VIs have been configured try reducing their count and see if
 4294          * that works.
 4295          */
 4296         while (iaq->num_vis > 1) {
 4297                 iaq->num_vis--;
 4298                 update_nirq(iaq, nports);
 4299                 if (iaq->nirq <= navail &&
 4300                     (itype != INTR_MSI || powerof2(iaq->nirq))) {
 4301                         device_printf(sc->dev, "virtual interfaces per port "
 4302                             "reduced to %d from %d.  nrxq=%u, nofldrxq=%u, "
 4303                             "nrxq_vi=%u nofldrxq_vi=%u, nnmrxq_vi=%u.  "
 4304                             "itype %d, navail %u, nirq %d.\n",
 4305                             iaq->num_vis, t4_num_vis, iaq->nrxq, iaq->nofldrxq,
 4306                             iaq->nrxq_vi, iaq->nofldrxq_vi, iaq->nnmrxq_vi,
 4307                             itype, navail, iaq->nirq);
 4308                         goto done;
 4309                 }
 4310         }
 4311 
 4312         /*
 4313          * Extra VIs will not be created.  Log a message if they were requested.
 4314          */
 4315         MPASS(iaq->num_vis == 1);
 4316         iaq->ntxq_vi = iaq->nrxq_vi = 0;
 4317         iaq->nofldtxq_vi = iaq->nofldrxq_vi = 0;
 4318         iaq->nnmtxq_vi = iaq->nnmrxq_vi = 0;
 4319         if (iaq->num_vis != t4_num_vis) {
 4320                 device_printf(sc->dev, "extra virtual interfaces disabled.  "
 4321                     "nrxq=%u, nofldrxq=%u, nrxq_vi=%u nofldrxq_vi=%u, "
 4322                     "nnmrxq_vi=%u.  itype %d, navail %u, nirq %d.\n",
 4323                     iaq->nrxq, iaq->nofldrxq, iaq->nrxq_vi, iaq->nofldrxq_vi,
 4324                     iaq->nnmrxq_vi, itype, navail, iaq->nirq);
 4325         }
 4326 
 4327         /*
 4328          * Keep reducing the number of NIC rx queues to the next lower power of
 4329          * 2 (for even RSS distribution) and halving the TOE rx queues and see
 4330          * if that works.
 4331          */
 4332         do {
 4333                 if (iaq->nrxq > 1) {
 4334                         do {
 4335                                 iaq->nrxq--;
 4336                         } while (!powerof2(iaq->nrxq));
 4337                         if (iaq->nnmrxq > iaq->nrxq)
 4338                                 iaq->nnmrxq = iaq->nrxq;
 4339                 }
 4340                 if (iaq->nofldrxq > 1)
 4341                         iaq->nofldrxq >>= 1;
 4342 
 4343                 old_nirq = iaq->nirq;
 4344                 update_nirq(iaq, nports);
 4345                 if (iaq->nirq <= navail &&
 4346                     (itype != INTR_MSI || powerof2(iaq->nirq))) {
 4347                         device_printf(sc->dev, "running with reduced number of "
 4348                             "rx queues because of shortage of interrupts.  "
 4349                             "nrxq=%u, nofldrxq=%u.  "
 4350                             "itype %d, navail %u, nirq %d.\n", iaq->nrxq,
 4351                             iaq->nofldrxq, itype, navail, iaq->nirq);
 4352                         goto done;
 4353                 }
 4354         } while (old_nirq != iaq->nirq);
 4355 
 4356         /* One interrupt for everything.  Ugh. */
 4357         device_printf(sc->dev, "running with minimal number of queues.  "
 4358             "itype %d, navail %u.\n", itype, navail);
 4359         iaq->nirq = 1;
 4360         iaq->nrxq = 1;
 4361         iaq->ntxq = 1;
 4362         if (iaq->nofldrxq > 0) {
 4363                 iaq->nofldrxq = 1;
 4364                 iaq->nofldtxq = 1;
 4365         }
 4366         iaq->nnmtxq = 0;
 4367         iaq->nnmrxq = 0;
 4368 done:
 4369         MPASS(iaq->num_vis > 0);
 4370         if (iaq->num_vis > 1) {
 4371                 MPASS(iaq->nrxq_vi > 0);
 4372                 MPASS(iaq->ntxq_vi > 0);
 4373         }
 4374         MPASS(iaq->nirq > 0);
 4375         MPASS(iaq->nrxq > 0);
 4376         MPASS(iaq->ntxq > 0);
 4377         if (itype == INTR_MSI) {
 4378                 MPASS(powerof2(iaq->nirq));
 4379         }
 4380 }
 4381 
 4382 static int
 4383 cfg_itype_and_nqueues(struct adapter *sc, struct intrs_and_queues *iaq)
 4384 {
 4385         int rc, itype, navail, nalloc;
 4386 
 4387         for (itype = INTR_MSIX; itype; itype >>= 1) {
 4388 
 4389                 if ((itype & t4_intr_types) == 0)
 4390                         continue;       /* not allowed */
 4391 
 4392                 if (itype == INTR_MSIX)
 4393                         navail = pci_msix_count(sc->dev);
 4394                 else if (itype == INTR_MSI)
 4395                         navail = pci_msi_count(sc->dev);
 4396                 else
 4397                         navail = 1;
 4398 restart:
 4399                 if (navail == 0)
 4400                         continue;
 4401 
 4402                 calculate_iaq(sc, iaq, itype, navail);
 4403                 nalloc = iaq->nirq;
 4404                 rc = 0;
 4405                 if (itype == INTR_MSIX)
 4406                         rc = pci_alloc_msix(sc->dev, &nalloc);
 4407                 else if (itype == INTR_MSI)
 4408                         rc = pci_alloc_msi(sc->dev, &nalloc);
 4409 
 4410                 if (rc == 0 && nalloc > 0) {
 4411                         if (nalloc == iaq->nirq)
 4412                                 return (0);
 4413 
 4414                         /*
 4415                          * Didn't get the number requested.  Use whatever number
 4416                          * the kernel is willing to allocate.
 4417                          */
 4418                         device_printf(sc->dev, "fewer vectors than requested, "
 4419                             "type=%d, req=%d, rcvd=%d; will downshift req.\n",
 4420                             itype, iaq->nirq, nalloc);
 4421                         pci_release_msi(sc->dev);
 4422                         navail = nalloc;
 4423                         goto restart;
 4424                 }
 4425 
 4426                 device_printf(sc->dev,
 4427                     "failed to allocate vectors:%d, type=%d, req=%d, rcvd=%d\n",
 4428                     itype, rc, iaq->nirq, nalloc);
 4429         }
 4430 
 4431         device_printf(sc->dev,
 4432             "failed to find a usable interrupt type.  "
 4433             "allowed=%d, msi-x=%d, msi=%d, intx=1", t4_intr_types,
 4434             pci_msix_count(sc->dev), pci_msi_count(sc->dev));
 4435 
 4436         return (ENXIO);
 4437 }
 4438 
 4439 #define FW_VERSION(chip) ( \
 4440     V_FW_HDR_FW_VER_MAJOR(chip##FW_VERSION_MAJOR) | \
 4441     V_FW_HDR_FW_VER_MINOR(chip##FW_VERSION_MINOR) | \
 4442     V_FW_HDR_FW_VER_MICRO(chip##FW_VERSION_MICRO) | \
 4443     V_FW_HDR_FW_VER_BUILD(chip##FW_VERSION_BUILD))
 4444 #define FW_INTFVER(chip, intf) (chip##FW_HDR_INTFVER_##intf)
 4445 
 4446 /* Just enough of fw_hdr to cover all version info. */
 4447 struct fw_h {
 4448         __u8    ver;
 4449         __u8    chip;
 4450         __be16  len512;
 4451         __be32  fw_ver;
 4452         __be32  tp_microcode_ver;
 4453         __u8    intfver_nic;
 4454         __u8    intfver_vnic;
 4455         __u8    intfver_ofld;
 4456         __u8    intfver_ri;
 4457         __u8    intfver_iscsipdu;
 4458         __u8    intfver_iscsi;
 4459         __u8    intfver_fcoepdu;
 4460         __u8    intfver_fcoe;
 4461 };
 4462 /* Spot check a couple of fields. */
 4463 CTASSERT(offsetof(struct fw_h, fw_ver) == offsetof(struct fw_hdr, fw_ver));
 4464 CTASSERT(offsetof(struct fw_h, intfver_nic) == offsetof(struct fw_hdr, intfver_nic));
 4465 CTASSERT(offsetof(struct fw_h, intfver_fcoe) == offsetof(struct fw_hdr, intfver_fcoe));
 4466 
 4467 struct fw_info {
 4468         uint8_t chip;
 4469         char *kld_name;
 4470         char *fw_mod_name;
 4471         struct fw_h fw_h;
 4472 } fw_info[] = {
 4473         {
 4474                 .chip = CHELSIO_T4,
 4475                 .kld_name = "t4fw_cfg",
 4476                 .fw_mod_name = "t4fw",
 4477                 .fw_h = {
 4478                         .chip = FW_HDR_CHIP_T4,
 4479                         .fw_ver = htobe32(FW_VERSION(T4)),
 4480                         .intfver_nic = FW_INTFVER(T4, NIC),
 4481                         .intfver_vnic = FW_INTFVER(T4, VNIC),
 4482                         .intfver_ofld = FW_INTFVER(T4, OFLD),
 4483                         .intfver_ri = FW_INTFVER(T4, RI),
 4484                         .intfver_iscsipdu = FW_INTFVER(T4, ISCSIPDU),
 4485                         .intfver_iscsi = FW_INTFVER(T4, ISCSI),
 4486                         .intfver_fcoepdu = FW_INTFVER(T4, FCOEPDU),
 4487                         .intfver_fcoe = FW_INTFVER(T4, FCOE),
 4488                 },
 4489         }, {
 4490                 .chip = CHELSIO_T5,
 4491                 .kld_name = "t5fw_cfg",
 4492                 .fw_mod_name = "t5fw",
 4493                 .fw_h = {
 4494                         .chip = FW_HDR_CHIP_T5,
 4495                         .fw_ver = htobe32(FW_VERSION(T5)),
 4496                         .intfver_nic = FW_INTFVER(T5, NIC),
 4497                         .intfver_vnic = FW_INTFVER(T5, VNIC),
 4498                         .intfver_ofld = FW_INTFVER(T5, OFLD),
 4499                         .intfver_ri = FW_INTFVER(T5, RI),
 4500                         .intfver_iscsipdu = FW_INTFVER(T5, ISCSIPDU),
 4501                         .intfver_iscsi = FW_INTFVER(T5, ISCSI),
 4502                         .intfver_fcoepdu = FW_INTFVER(T5, FCOEPDU),
 4503                         .intfver_fcoe = FW_INTFVER(T5, FCOE),
 4504                 },
 4505         }, {
 4506                 .chip = CHELSIO_T6,
 4507                 .kld_name = "t6fw_cfg",
 4508                 .fw_mod_name = "t6fw",
 4509                 .fw_h = {
 4510                         .chip = FW_HDR_CHIP_T6,
 4511                         .fw_ver = htobe32(FW_VERSION(T6)),
 4512                         .intfver_nic = FW_INTFVER(T6, NIC),
 4513                         .intfver_vnic = FW_INTFVER(T6, VNIC),
 4514                         .intfver_ofld = FW_INTFVER(T6, OFLD),
 4515                         .intfver_ri = FW_INTFVER(T6, RI),
 4516                         .intfver_iscsipdu = FW_INTFVER(T6, ISCSIPDU),
 4517                         .intfver_iscsi = FW_INTFVER(T6, ISCSI),
 4518                         .intfver_fcoepdu = FW_INTFVER(T6, FCOEPDU),
 4519                         .intfver_fcoe = FW_INTFVER(T6, FCOE),
 4520                 },
 4521         }
 4522 };
 4523 
 4524 static struct fw_info *
 4525 find_fw_info(int chip)
 4526 {
 4527         int i;
 4528 
 4529         for (i = 0; i < nitems(fw_info); i++) {
 4530                 if (fw_info[i].chip == chip)
 4531                         return (&fw_info[i]);
 4532         }
 4533         return (NULL);
 4534 }
 4535 
 4536 /*
 4537  * Is the given firmware API compatible with the one the driver was compiled
 4538  * with?
 4539  */
 4540 static int
 4541 fw_compatible(const struct fw_h *hdr1, const struct fw_h *hdr2)
 4542 {
 4543 
 4544         /* short circuit if it's the exact same firmware version */
 4545         if (hdr1->chip == hdr2->chip && hdr1->fw_ver == hdr2->fw_ver)
 4546                 return (1);
 4547 
 4548         /*
 4549          * XXX: Is this too conservative?  Perhaps I should limit this to the
 4550          * features that are supported in the driver.
 4551          */
 4552 #define SAME_INTF(x) (hdr1->intfver_##x == hdr2->intfver_##x)
 4553         if (hdr1->chip == hdr2->chip && SAME_INTF(nic) && SAME_INTF(vnic) &&
 4554             SAME_INTF(ofld) && SAME_INTF(ri) && SAME_INTF(iscsipdu) &&
 4555             SAME_INTF(iscsi) && SAME_INTF(fcoepdu) && SAME_INTF(fcoe))
 4556                 return (1);
 4557 #undef SAME_INTF
 4558 
 4559         return (0);
 4560 }
 4561 
 4562 static int
 4563 load_fw_module(struct adapter *sc, const struct firmware **dcfg,
 4564     const struct firmware **fw)
 4565 {
 4566         struct fw_info *fw_info;
 4567 
 4568         *dcfg = NULL;
 4569         if (fw != NULL)
 4570                 *fw = NULL;
 4571 
 4572         fw_info = find_fw_info(chip_id(sc));
 4573         if (fw_info == NULL) {
 4574                 device_printf(sc->dev,
 4575                     "unable to look up firmware information for chip %d.\n",
 4576                     chip_id(sc));
 4577                 return (EINVAL);
 4578         }
 4579 
 4580         *dcfg = firmware_get(fw_info->kld_name);
 4581         if (*dcfg != NULL) {
 4582                 if (fw != NULL)
 4583                         *fw = firmware_get(fw_info->fw_mod_name);
 4584                 return (0);
 4585         }
 4586 
 4587         return (ENOENT);
 4588 }
 4589 
 4590 static void
 4591 unload_fw_module(struct adapter *sc, const struct firmware *dcfg,
 4592     const struct firmware *fw)
 4593 {
 4594 
 4595         if (fw != NULL)
 4596                 firmware_put(fw, FIRMWARE_UNLOAD);
 4597         if (dcfg != NULL)
 4598                 firmware_put(dcfg, FIRMWARE_UNLOAD);
 4599 }
 4600 
 4601 /*
 4602  * Return values:
 4603  * 0 means no firmware install attempted.
 4604  * ERESTART means a firmware install was attempted and was successful.
 4605  * +ve errno means a firmware install was attempted but failed.
 4606  */
 4607 static int
 4608 install_kld_firmware(struct adapter *sc, struct fw_h *card_fw,
 4609     const struct fw_h *drv_fw, const char *reason, int *already)
 4610 {
 4611         const struct firmware *cfg, *fw;
 4612         const uint32_t c = be32toh(card_fw->fw_ver);
 4613         uint32_t d, k;
 4614         int rc, fw_install;
 4615         struct fw_h bundled_fw;
 4616         bool load_attempted;
 4617 
 4618         cfg = fw = NULL;
 4619         load_attempted = false;
 4620         fw_install = t4_fw_install < 0 ? -t4_fw_install : t4_fw_install;
 4621 
 4622         memcpy(&bundled_fw, drv_fw, sizeof(bundled_fw));
 4623         if (t4_fw_install < 0) {
 4624                 rc = load_fw_module(sc, &cfg, &fw);
 4625                 if (rc != 0 || fw == NULL) {
 4626                         device_printf(sc->dev,
 4627                             "failed to load firmware module: %d. cfg %p, fw %p;"
 4628                             " will use compiled-in firmware version for"
 4629                             "hw.cxgbe.fw_install checks.\n",
 4630                             rc, cfg, fw);
 4631                 } else {
 4632                         memcpy(&bundled_fw, fw->data, sizeof(bundled_fw));
 4633                 }
 4634                 load_attempted = true;
 4635         }
 4636         d = be32toh(bundled_fw.fw_ver);
 4637 
 4638         if (reason != NULL)
 4639                 goto install;
 4640 
 4641         if ((sc->flags & FW_OK) == 0) {
 4642 
 4643                 if (c == 0xffffffff) {
 4644                         reason = "missing";
 4645                         goto install;
 4646                 }
 4647 
 4648                 rc = 0;
 4649                 goto done;
 4650         }
 4651 
 4652         if (!fw_compatible(card_fw, &bundled_fw)) {
 4653                 reason = "incompatible or unusable";
 4654                 goto install;
 4655         }
 4656 
 4657         if (d > c) {
 4658                 reason = "older than the version bundled with this driver";
 4659                 goto install;
 4660         }
 4661 
 4662         if (fw_install == 2 && d != c) {
 4663                 reason = "different than the version bundled with this driver";
 4664                 goto install;
 4665         }
 4666 
 4667         /* No reason to do anything to the firmware already on the card. */
 4668         rc = 0;
 4669         goto done;
 4670 
 4671 install:
 4672         rc = 0;
 4673         if ((*already)++)
 4674                 goto done;
 4675 
 4676         if (fw_install == 0) {
 4677                 device_printf(sc->dev, "firmware on card (%u.%u.%u.%u) is %s, "
 4678                     "but the driver is prohibited from installing a firmware "
 4679                     "on the card.\n",
 4680                     G_FW_HDR_FW_VER_MAJOR(c), G_FW_HDR_FW_VER_MINOR(c),
 4681                     G_FW_HDR_FW_VER_MICRO(c), G_FW_HDR_FW_VER_BUILD(c), reason);
 4682 
 4683                 goto done;
 4684         }
 4685 
 4686         /*
 4687          * We'll attempt to install a firmware.  Load the module first (if it
 4688          * hasn't been loaded already).
 4689          */
 4690         if (!load_attempted) {
 4691                 rc = load_fw_module(sc, &cfg, &fw);
 4692                 if (rc != 0 || fw == NULL) {
 4693                         device_printf(sc->dev,
 4694                             "failed to load firmware module: %d. cfg %p, fw %p\n",
 4695                             rc, cfg, fw);
 4696                         /* carry on */
 4697                 }
 4698         }
 4699         if (fw == NULL) {
 4700                 device_printf(sc->dev, "firmware on card (%u.%u.%u.%u) is %s, "
 4701                     "but the driver cannot take corrective action because it "
 4702                     "is unable to load the firmware module.\n",
 4703                     G_FW_HDR_FW_VER_MAJOR(c), G_FW_HDR_FW_VER_MINOR(c),
 4704                     G_FW_HDR_FW_VER_MICRO(c), G_FW_HDR_FW_VER_BUILD(c), reason);
 4705                 rc = sc->flags & FW_OK ? 0 : ENOENT;
 4706                 goto done;
 4707         }
 4708         k = be32toh(((const struct fw_hdr *)fw->data)->fw_ver);
 4709         if (k != d) {
 4710                 MPASS(t4_fw_install > 0);
 4711                 device_printf(sc->dev,
 4712                     "firmware in KLD (%u.%u.%u.%u) is not what the driver was "
 4713                     "expecting (%u.%u.%u.%u) and will not be used.\n",
 4714                     G_FW_HDR_FW_VER_MAJOR(k), G_FW_HDR_FW_VER_MINOR(k),
 4715                     G_FW_HDR_FW_VER_MICRO(k), G_FW_HDR_FW_VER_BUILD(k),
 4716                     G_FW_HDR_FW_VER_MAJOR(d), G_FW_HDR_FW_VER_MINOR(d),
 4717                     G_FW_HDR_FW_VER_MICRO(d), G_FW_HDR_FW_VER_BUILD(d));
 4718                 rc = sc->flags & FW_OK ? 0 : EINVAL;
 4719                 goto done;
 4720         }
 4721 
 4722         device_printf(sc->dev, "firmware on card (%u.%u.%u.%u) is %s, "
 4723             "installing firmware %u.%u.%u.%u on card.\n",
 4724             G_FW_HDR_FW_VER_MAJOR(c), G_FW_HDR_FW_VER_MINOR(c),
 4725             G_FW_HDR_FW_VER_MICRO(c), G_FW_HDR_FW_VER_BUILD(c), reason,
 4726             G_FW_HDR_FW_VER_MAJOR(d), G_FW_HDR_FW_VER_MINOR(d),
 4727             G_FW_HDR_FW_VER_MICRO(d), G_FW_HDR_FW_VER_BUILD(d));
 4728 
 4729         rc = -t4_fw_upgrade(sc, sc->mbox, fw->data, fw->datasize, 0);
 4730         if (rc != 0) {
 4731                 device_printf(sc->dev, "failed to install firmware: %d\n", rc);
 4732         } else {
 4733                 /* Installed successfully, update the cached header too. */
 4734                 rc = ERESTART;
 4735                 memcpy(card_fw, fw->data, sizeof(*card_fw));
 4736         }
 4737 done:
 4738         unload_fw_module(sc, cfg, fw);
 4739 
 4740         return (rc);
 4741 }
 4742 
 4743 /*
 4744  * Establish contact with the firmware and attempt to become the master driver.
 4745  *
 4746  * A firmware will be installed to the card if needed (if the driver is allowed
 4747  * to do so).
 4748  */
 4749 static int
 4750 contact_firmware(struct adapter *sc)
 4751 {
 4752         int rc, already = 0;
 4753         enum dev_state state;
 4754         struct fw_info *fw_info;
 4755         struct fw_hdr *card_fw;         /* fw on the card */
 4756         const struct fw_h *drv_fw;
 4757 
 4758         fw_info = find_fw_info(chip_id(sc));
 4759         if (fw_info == NULL) {
 4760                 device_printf(sc->dev,
 4761                     "unable to look up firmware information for chip %d.\n",
 4762                     chip_id(sc));
 4763                 return (EINVAL);
 4764         }
 4765         drv_fw = &fw_info->fw_h;
 4766 
 4767         /* Read the header of the firmware on the card */
 4768         card_fw = malloc(sizeof(*card_fw), M_CXGBE, M_ZERO | M_WAITOK);
 4769 restart:
 4770         rc = -t4_get_fw_hdr(sc, card_fw);
 4771         if (rc != 0) {
 4772                 device_printf(sc->dev,
 4773                     "unable to read firmware header from card's flash: %d\n",
 4774                     rc);
 4775                 goto done;
 4776         }
 4777 
 4778         rc = install_kld_firmware(sc, (struct fw_h *)card_fw, drv_fw, NULL,
 4779             &already);
 4780         if (rc == ERESTART)
 4781                 goto restart;
 4782         if (rc != 0)
 4783                 goto done;
 4784 
 4785         rc = t4_fw_hello(sc, sc->mbox, sc->mbox, MASTER_MAY, &state);
 4786         if (rc < 0 || state == DEV_STATE_ERR) {
 4787                 rc = -rc;
 4788                 device_printf(sc->dev,
 4789                     "failed to connect to the firmware: %d, %d.  "
 4790                     "PCIE_FW 0x%08x\n", rc, state, t4_read_reg(sc, A_PCIE_FW));
 4791 #if 0
 4792                 if (install_kld_firmware(sc, (struct fw_h *)card_fw, drv_fw,
 4793                     "not responding properly to HELLO", &already) == ERESTART)
 4794                         goto restart;
 4795 #endif
 4796                 goto done;
 4797         }
 4798         MPASS(be32toh(card_fw->flags) & FW_HDR_FLAGS_RESET_HALT);
 4799         sc->flags |= FW_OK;     /* The firmware responded to the FW_HELLO. */
 4800 
 4801         if (rc == sc->pf) {
 4802                 sc->flags |= MASTER_PF;
 4803                 rc = install_kld_firmware(sc, (struct fw_h *)card_fw, drv_fw,
 4804                     NULL, &already);
 4805                 if (rc == ERESTART)
 4806                         rc = 0;
 4807                 else if (rc != 0)
 4808                         goto done;
 4809         } else if (state == DEV_STATE_UNINIT) {
 4810                 /*
 4811                  * We didn't get to be the master so we definitely won't be
 4812                  * configuring the chip.  It's a bug if someone else hasn't
 4813                  * configured it already.
 4814                  */
 4815                 device_printf(sc->dev, "couldn't be master(%d), "
 4816                     "device not already initialized either(%d).  "
 4817                     "PCIE_FW 0x%08x\n", rc, state, t4_read_reg(sc, A_PCIE_FW));
 4818                 rc = EPROTO;
 4819                 goto done;
 4820         } else {
 4821                 /*
 4822                  * Some other PF is the master and has configured the chip.
 4823                  * This is allowed but untested.
 4824                  */
 4825                 device_printf(sc->dev, "PF%d is master, device state %d.  "
 4826                     "PCIE_FW 0x%08x\n", rc, state, t4_read_reg(sc, A_PCIE_FW));
 4827                 snprintf(sc->cfg_file, sizeof(sc->cfg_file), "pf%d", rc);
 4828                 sc->cfcsum = 0;
 4829                 rc = 0;
 4830         }
 4831 done:
 4832         if (rc != 0 && sc->flags & FW_OK) {
 4833                 t4_fw_bye(sc, sc->mbox);
 4834                 sc->flags &= ~FW_OK;
 4835         }
 4836         free(card_fw, M_CXGBE);
 4837         return (rc);
 4838 }
 4839 
 4840 static int
 4841 copy_cfg_file_to_card(struct adapter *sc, char *cfg_file,
 4842     uint32_t mtype, uint32_t moff)
 4843 {
 4844         struct fw_info *fw_info;
 4845         const struct firmware *dcfg, *rcfg = NULL;
 4846         const uint32_t *cfdata;
 4847         uint32_t cflen, addr;
 4848         int rc;
 4849 
 4850         load_fw_module(sc, &dcfg, NULL);
 4851 
 4852         /* Card specific interpretation of "default". */
 4853         if (strncmp(cfg_file, DEFAULT_CF, sizeof(t4_cfg_file)) == 0) {
 4854                 if (pci_get_device(sc->dev) == 0x440a)
 4855                         snprintf(cfg_file, sizeof(t4_cfg_file), UWIRE_CF);
 4856                 if (is_fpga(sc))
 4857                         snprintf(cfg_file, sizeof(t4_cfg_file), FPGA_CF);
 4858         }
 4859 
 4860         if (strncmp(cfg_file, DEFAULT_CF, sizeof(t4_cfg_file)) == 0) {
 4861                 if (dcfg == NULL) {
 4862                         device_printf(sc->dev,
 4863                             "KLD with default config is not available.\n");
 4864                         rc = ENOENT;
 4865                         goto done;
 4866                 }
 4867                 cfdata = dcfg->data;
 4868                 cflen = dcfg->datasize & ~3;
 4869         } else {
 4870                 char s[32];
 4871 
 4872                 fw_info = find_fw_info(chip_id(sc));
 4873                 if (fw_info == NULL) {
 4874                         device_printf(sc->dev,
 4875                             "unable to look up firmware information for chip %d.\n",
 4876                             chip_id(sc));
 4877                         rc = EINVAL;
 4878                         goto done;
 4879                 }
 4880                 snprintf(s, sizeof(s), "%s_%s", fw_info->kld_name, cfg_file);
 4881 
 4882                 rcfg = firmware_get(s);
 4883                 if (rcfg == NULL) {
 4884                         device_printf(sc->dev,
 4885                             "unable to load module \"%s\" for configuration "
 4886                             "profile \"%s\".\n", s, cfg_file);
 4887                         rc = ENOENT;
 4888                         goto done;
 4889                 }
 4890                 cfdata = rcfg->data;
 4891                 cflen = rcfg->datasize & ~3;
 4892         }
 4893 
 4894         if (cflen > FLASH_CFG_MAX_SIZE) {
 4895                 device_printf(sc->dev,
 4896                     "config file too long (%d, max allowed is %d).\n",
 4897                     cflen, FLASH_CFG_MAX_SIZE);
 4898                 rc = EINVAL;
 4899                 goto done;
 4900         }
 4901 
 4902         rc = validate_mt_off_len(sc, mtype, moff, cflen, &addr);
 4903         if (rc != 0) {
 4904                 device_printf(sc->dev,
 4905                     "%s: addr (%d/0x%x) or len %d is not valid: %d.\n",
 4906                     __func__, mtype, moff, cflen, rc);
 4907                 rc = EINVAL;
 4908                 goto done;
 4909         }
 4910         write_via_memwin(sc, 2, addr, cfdata, cflen);
 4911 done:
 4912         if (rcfg != NULL)
 4913                 firmware_put(rcfg, FIRMWARE_UNLOAD);
 4914         unload_fw_module(sc, dcfg, NULL);
 4915         return (rc);
 4916 }
 4917 
 4918 struct caps_allowed {
 4919         uint16_t nbmcaps;
 4920         uint16_t linkcaps;
 4921         uint16_t switchcaps;
 4922         uint16_t niccaps;
 4923         uint16_t toecaps;
 4924         uint16_t rdmacaps;
 4925         uint16_t cryptocaps;
 4926         uint16_t iscsicaps;
 4927         uint16_t fcoecaps;
 4928 };
 4929 
 4930 #define FW_PARAM_DEV(param) \
 4931         (V_FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) | \
 4932          V_FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_##param))
 4933 #define FW_PARAM_PFVF(param) \
 4934         (V_FW_PARAMS_MNEM(FW_PARAMS_MNEM_PFVF) | \
 4935          V_FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_PFVF_##param))
 4936 
 4937 /*
 4938  * Provide a configuration profile to the firmware and have it initialize the
 4939  * chip accordingly.  This may involve uploading a configuration file to the
 4940  * card.
 4941  */
 4942 static int
 4943 apply_cfg_and_initialize(struct adapter *sc, char *cfg_file,
 4944     const struct caps_allowed *caps_allowed)
 4945 {
 4946         int rc;
 4947         struct fw_caps_config_cmd caps;
 4948         uint32_t mtype, moff, finicsum, cfcsum, param, val;
 4949 
 4950         rc = -t4_fw_reset(sc, sc->mbox, F_PIORSTMODE | F_PIORST);
 4951         if (rc != 0) {
 4952                 device_printf(sc->dev, "firmware reset failed: %d.\n", rc);
 4953                 return (rc);
 4954         }
 4955 
 4956         bzero(&caps, sizeof(caps));
 4957         caps.op_to_write = htobe32(V_FW_CMD_OP(FW_CAPS_CONFIG_CMD) |
 4958             F_FW_CMD_REQUEST | F_FW_CMD_READ);
 4959         if (strncmp(cfg_file, BUILTIN_CF, sizeof(t4_cfg_file)) == 0) {
 4960                 mtype = 0;
 4961                 moff = 0;
 4962                 caps.cfvalid_to_len16 = htobe32(FW_LEN16(caps));
 4963         } else if (strncmp(cfg_file, FLASH_CF, sizeof(t4_cfg_file)) == 0) {
 4964                 mtype = FW_MEMTYPE_FLASH;
 4965                 moff = t4_flash_cfg_addr(sc);
 4966                 caps.cfvalid_to_len16 = htobe32(F_FW_CAPS_CONFIG_CMD_CFVALID |
 4967                     V_FW_CAPS_CONFIG_CMD_MEMTYPE_CF(mtype) |
 4968                     V_FW_CAPS_CONFIG_CMD_MEMADDR64K_CF(moff >> 16) |
 4969                     FW_LEN16(caps));
 4970         } else {
 4971                 /*
 4972                  * Ask the firmware where it wants us to upload the config file.
 4973                  */
 4974                 param = FW_PARAM_DEV(CF);
 4975                 rc = -t4_query_params(sc, sc->mbox, sc->pf, 0, 1, &param, &val);
 4976                 if (rc != 0) {
 4977                         /* No support for config file?  Shouldn't happen. */
 4978                         device_printf(sc->dev,
 4979                             "failed to query config file location: %d.\n", rc);
 4980                         goto done;
 4981                 }
 4982                 mtype = G_FW_PARAMS_PARAM_Y(val);
 4983                 moff = G_FW_PARAMS_PARAM_Z(val) << 16;
 4984                 caps.cfvalid_to_len16 = htobe32(F_FW_CAPS_CONFIG_CMD_CFVALID |
 4985                     V_FW_CAPS_CONFIG_CMD_MEMTYPE_CF(mtype) |
 4986                     V_FW_CAPS_CONFIG_CMD_MEMADDR64K_CF(moff >> 16) |
 4987                     FW_LEN16(caps));
 4988 
 4989                 rc = copy_cfg_file_to_card(sc, cfg_file, mtype, moff);
 4990                 if (rc != 0) {
 4991                         device_printf(sc->dev,
 4992                             "failed to upload config file to card: %d.\n", rc);
 4993                         goto done;
 4994                 }
 4995         }
 4996         rc = -t4_wr_mbox(sc, sc->mbox, &caps, sizeof(caps), &caps);
 4997         if (rc != 0) {
 4998                 device_printf(sc->dev, "failed to pre-process config file: %d "
 4999                     "(mtype %d, moff 0x%x).\n", rc, mtype, moff);
 5000                 goto done;
 5001         }
 5002 
 5003         finicsum = be32toh(caps.finicsum);
 5004         cfcsum = be32toh(caps.cfcsum);  /* actual */
 5005         if (finicsum != cfcsum) {
 5006                 device_printf(sc->dev,
 5007                     "WARNING: config file checksum mismatch: %08x %08x\n",
 5008                     finicsum, cfcsum);
 5009         }
 5010         sc->cfcsum = cfcsum;
 5011         snprintf(sc->cfg_file, sizeof(sc->cfg_file), "%s", cfg_file);
 5012 
 5013         /*
 5014          * Let the firmware know what features will (not) be used so it can tune
 5015          * things accordingly.
 5016          */
 5017 #define LIMIT_CAPS(x) do { \
 5018         caps.x##caps &= htobe16(caps_allowed->x##caps); \
 5019 } while (0)
 5020         LIMIT_CAPS(nbm);
 5021         LIMIT_CAPS(link);
 5022         LIMIT_CAPS(switch);
 5023         LIMIT_CAPS(nic);
 5024         LIMIT_CAPS(toe);
 5025         LIMIT_CAPS(rdma);
 5026         LIMIT_CAPS(crypto);
 5027         LIMIT_CAPS(iscsi);
 5028         LIMIT_CAPS(fcoe);
 5029 #undef LIMIT_CAPS
 5030         if (caps.niccaps & htobe16(FW_CAPS_CONFIG_NIC_HASHFILTER)) {
 5031                 /*
 5032                  * TOE and hashfilters are mutually exclusive.  It is a config
 5033                  * file or firmware bug if both are reported as available.  Try
 5034                  * to cope with the situation in non-debug builds by disabling
 5035                  * TOE.
 5036                  */
 5037                 MPASS(caps.toecaps == 0);
 5038 
 5039                 caps.toecaps = 0;
 5040                 caps.rdmacaps = 0;
 5041                 caps.iscsicaps = 0;
 5042         }
 5043 
 5044         caps.op_to_write = htobe32(V_FW_CMD_OP(FW_CAPS_CONFIG_CMD) |
 5045             F_FW_CMD_REQUEST | F_FW_CMD_WRITE);
 5046         caps.cfvalid_to_len16 = htobe32(FW_LEN16(caps));
 5047         rc = -t4_wr_mbox(sc, sc->mbox, &caps, sizeof(caps), NULL);
 5048         if (rc != 0) {
 5049                 device_printf(sc->dev,
 5050                     "failed to process config file: %d.\n", rc);
 5051                 goto done;
 5052         }
 5053 
 5054         t4_tweak_chip_settings(sc);
 5055         set_params__pre_init(sc);
 5056 
 5057         /* get basic stuff going */
 5058         rc = -t4_fw_initialize(sc, sc->mbox);
 5059         if (rc != 0) {
 5060                 device_printf(sc->dev, "fw_initialize failed: %d.\n", rc);
 5061                 goto done;
 5062         }
 5063 done:
 5064         return (rc);
 5065 }
 5066 
 5067 /*
 5068  * Partition chip resources for use between various PFs, VFs, etc.
 5069  */
 5070 static int
 5071 partition_resources(struct adapter *sc)
 5072 {
 5073         char cfg_file[sizeof(t4_cfg_file)];
 5074         struct caps_allowed caps_allowed;
 5075         int rc;
 5076         bool fallback;
 5077 
 5078         /* Only the master driver gets to configure the chip resources. */
 5079         MPASS(sc->flags & MASTER_PF);
 5080 
 5081 #define COPY_CAPS(x) do { \
 5082         caps_allowed.x##caps = t4_##x##caps_allowed; \
 5083 } while (0)
 5084         bzero(&caps_allowed, sizeof(caps_allowed));
 5085         COPY_CAPS(nbm);
 5086         COPY_CAPS(link);
 5087         COPY_CAPS(switch);
 5088         COPY_CAPS(nic);
 5089         COPY_CAPS(toe);
 5090         COPY_CAPS(rdma);
 5091         COPY_CAPS(crypto);
 5092         COPY_CAPS(iscsi);
 5093         COPY_CAPS(fcoe);
 5094         fallback = sc->debug_flags & DF_DISABLE_CFG_RETRY ? false : true;
 5095         snprintf(cfg_file, sizeof(cfg_file), "%s", t4_cfg_file);
 5096 retry:
 5097         rc = apply_cfg_and_initialize(sc, cfg_file, &caps_allowed);
 5098         if (rc != 0 && fallback) {
 5099                 device_printf(sc->dev,
 5100                     "failed (%d) to configure card with \"%s\" profile, "
 5101                     "will fall back to a basic configuration and retry.\n",
 5102                     rc, cfg_file);
 5103                 snprintf(cfg_file, sizeof(cfg_file), "%s", BUILTIN_CF);
 5104                 bzero(&caps_allowed, sizeof(caps_allowed));
 5105                 COPY_CAPS(switch);
 5106                 caps_allowed.niccaps = FW_CAPS_CONFIG_NIC;
 5107                 fallback = false;
 5108                 goto retry;
 5109         }
 5110 #undef COPY_CAPS
 5111         return (rc);
 5112 }
 5113 
 5114 /*
 5115  * Retrieve parameters that are needed (or nice to have) very early.
 5116  */
 5117 static int
 5118 get_params__pre_init(struct adapter *sc)
 5119 {
 5120         int rc;
 5121         uint32_t param[2], val[2];
 5122 
 5123         t4_get_version_info(sc);
 5124 
 5125         snprintf(sc->fw_version, sizeof(sc->fw_version), "%u.%u.%u.%u",
 5126             G_FW_HDR_FW_VER_MAJOR(sc->params.fw_vers),
 5127             G_FW_HDR_FW_VER_MINOR(sc->params.fw_vers),
 5128             G_FW_HDR_FW_VER_MICRO(sc->params.fw_vers),
 5129             G_FW_HDR_FW_VER_BUILD(sc->params.fw_vers));
 5130 
 5131         snprintf(sc->bs_version, sizeof(sc->bs_version), "%u.%u.%u.%u",
 5132             G_FW_HDR_FW_VER_MAJOR(sc->params.bs_vers),
 5133             G_FW_HDR_FW_VER_MINOR(sc->params.bs_vers),
 5134             G_FW_HDR_FW_VER_MICRO(sc->params.bs_vers),
 5135             G_FW_HDR_FW_VER_BUILD(sc->params.bs_vers));
 5136 
 5137         snprintf(sc->tp_version, sizeof(sc->tp_version), "%u.%u.%u.%u",
 5138             G_FW_HDR_FW_VER_MAJOR(sc->params.tp_vers),
 5139             G_FW_HDR_FW_VER_MINOR(sc->params.tp_vers),
 5140             G_FW_HDR_FW_VER_MICRO(sc->params.tp_vers),
 5141             G_FW_HDR_FW_VER_BUILD(sc->params.tp_vers));
 5142 
 5143         snprintf(sc->er_version, sizeof(sc->er_version), "%u.%u.%u.%u",
 5144             G_FW_HDR_FW_VER_MAJOR(sc->params.er_vers),
 5145             G_FW_HDR_FW_VER_MINOR(sc->params.er_vers),
 5146             G_FW_HDR_FW_VER_MICRO(sc->params.er_vers),
 5147             G_FW_HDR_FW_VER_BUILD(sc->params.er_vers));
 5148 
 5149         param[0] = FW_PARAM_DEV(PORTVEC);
 5150         param[1] = FW_PARAM_DEV(CCLK);
 5151         rc = -t4_query_params(sc, sc->mbox, sc->pf, 0, 2, param, val);
 5152         if (rc != 0) {
 5153                 device_printf(sc->dev,
 5154                     "failed to query parameters (pre_init): %d.\n", rc);
 5155                 return (rc);
 5156         }
 5157 
 5158         sc->params.portvec = val[0];
 5159         sc->params.nports = bitcount32(val[0]);
 5160         sc->params.vpd.cclk = val[1];
 5161 
 5162         /* Read device log parameters. */
 5163         rc = -t4_init_devlog_params(sc, 1);
 5164         if (rc == 0)
 5165                 fixup_devlog_params(sc);
 5166         else {
 5167                 device_printf(sc->dev,
 5168                     "failed to get devlog parameters: %d.\n", rc);
 5169                 rc = 0; /* devlog isn't critical for device operation */
 5170         }
 5171 
 5172         return (rc);
 5173 }
 5174 
 5175 /*
 5176  * Any params that need to be set before FW_INITIALIZE.
 5177  */
 5178 static int
 5179 set_params__pre_init(struct adapter *sc)
 5180 {
 5181         int rc = 0;
 5182         uint32_t param, val;
 5183 
 5184         if (chip_id(sc) >= CHELSIO_T6) {
 5185                 param = FW_PARAM_DEV(HPFILTER_REGION_SUPPORT);
 5186                 val = 1;
 5187                 rc = -t4_set_params(sc, sc->mbox, sc->pf, 0, 1, &param, &val);
 5188                 /* firmwares < 1.20.1.0 do not have this param. */
 5189                 if (rc == FW_EINVAL &&
 5190                     sc->params.fw_vers < FW_VERSION32(1, 20, 1, 0)) {
 5191                         rc = 0;
 5192                 }
 5193                 if (rc != 0) {
 5194                         device_printf(sc->dev,
 5195                             "failed to enable high priority filters :%d.\n",
 5196                             rc);
 5197                 }
 5198 
 5199                 param = FW_PARAM_DEV(PPOD_EDRAM);
 5200                 rc = -t4_query_params(sc, sc->mbox, sc->pf, 0, 1, &param, &val);
 5201                 if (rc == 0 && val == 1) {
 5202                         rc = -t4_set_params(sc, sc->mbox, sc->pf, 0, 1, &param,
 5203                             &val);
 5204                         if (rc != 0) {
 5205                                 device_printf(sc->dev,
 5206                                     "failed to set PPOD_EDRAM: %d.\n", rc);
 5207                         }
 5208                 }
 5209         }
 5210 
 5211         /* Enable opaque VIIDs with firmwares that support it. */
 5212         param = FW_PARAM_DEV(OPAQUE_VIID_SMT_EXTN);
 5213         val = 1;
 5214         rc = -t4_set_params(sc, sc->mbox, sc->pf, 0, 1, &param, &val);
 5215         if (rc == 0 && val == 1)
 5216                 sc->params.viid_smt_extn_support = true;
 5217         else
 5218                 sc->params.viid_smt_extn_support = false;
 5219 
 5220         return (rc);
 5221 }
 5222 
 5223 /*
 5224  * Retrieve various parameters that are of interest to the driver.  The device
 5225  * has been initialized by the firmware at this point.
 5226  */
 5227 static int
 5228 get_params__post_init(struct adapter *sc)
 5229 {
 5230         int rc;
 5231         uint32_t param[7], val[7];
 5232         struct fw_caps_config_cmd caps;
 5233 
 5234         param[0] = FW_PARAM_PFVF(IQFLINT_START);
 5235         param[1] = FW_PARAM_PFVF(EQ_START);
 5236         param[2] = FW_PARAM_PFVF(FILTER_START);
 5237         param[3] = FW_PARAM_PFVF(FILTER_END);
 5238         param[4] = FW_PARAM_PFVF(L2T_START);
 5239         param[5] = FW_PARAM_PFVF(L2T_END);
 5240         param[6] = V_FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) |
 5241             V_FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_DIAG) |
 5242             V_FW_PARAMS_PARAM_Y(FW_PARAM_DEV_DIAG_VDD);
 5243         rc = -t4_query_params(sc, sc->mbox, sc->pf, 0, 7, param, val);
 5244         if (rc != 0) {
 5245                 device_printf(sc->dev,
 5246                     "failed to query parameters (post_init): %d.\n", rc);
 5247                 return (rc);
 5248         }
 5249 
 5250         sc->sge.iq_start = val[0];
 5251         sc->sge.eq_start = val[1];
 5252         if ((int)val[3] > (int)val[2]) {
 5253                 sc->tids.ftid_base = val[2];
 5254                 sc->tids.ftid_end = val[3];
 5255                 sc->tids.nftids = val[3] - val[2] + 1;
 5256         }
 5257         sc->vres.l2t.start = val[4];
 5258         sc->vres.l2t.size = val[5] - val[4] + 1;
 5259         KASSERT(sc->vres.l2t.size <= L2T_SIZE,
 5260             ("%s: L2 table size (%u) larger than expected (%u)",
 5261             __func__, sc->vres.l2t.size, L2T_SIZE));
 5262         sc->params.core_vdd = val[6];
 5263 
 5264         param[0] = FW_PARAM_PFVF(IQFLINT_END);
 5265         param[1] = FW_PARAM_PFVF(EQ_END);
 5266         rc = -t4_query_params(sc, sc->mbox, sc->pf, 0, 2, param, val);
 5267         if (rc != 0) {
 5268                 device_printf(sc->dev,
 5269                     "failed to query parameters (post_init2): %d.\n", rc);
 5270                 return (rc);
 5271         }
 5272         MPASS((int)val[0] >= sc->sge.iq_start);
 5273         sc->sge.iqmap_sz = val[0] - sc->sge.iq_start + 1;
 5274         MPASS((int)val[1] >= sc->sge.eq_start);
 5275         sc->sge.eqmap_sz = val[1] - sc->sge.eq_start + 1;
 5276 
 5277         if (chip_id(sc) >= CHELSIO_T6) {
 5278 
 5279                 sc->tids.tid_base = t4_read_reg(sc,
 5280                     A_LE_DB_ACTIVE_TABLE_START_INDEX);
 5281 
 5282                 param[0] = FW_PARAM_PFVF(HPFILTER_START);
 5283                 param[1] = FW_PARAM_PFVF(HPFILTER_END);
 5284                 rc = -t4_query_params(sc, sc->mbox, sc->pf, 0, 2, param, val);
 5285                 if (rc != 0) {
 5286                         device_printf(sc->dev,
 5287                            "failed to query hpfilter parameters: %d.\n", rc);
 5288                         return (rc);
 5289                 }
 5290                 if ((int)val[1] > (int)val[0]) {
 5291                         sc->tids.hpftid_base = val[0];
 5292                         sc->tids.hpftid_end = val[1];
 5293                         sc->tids.nhpftids = val[1] - val[0] + 1;
 5294 
 5295                         /*
 5296                          * These should go off if the layout changes and the
 5297                          * driver needs to catch up.
 5298                          */
 5299                         MPASS(sc->tids.hpftid_base == 0);
 5300                         MPASS(sc->tids.tid_base == sc->tids.nhpftids);
 5301                 }
 5302 
 5303                 param[0] = FW_PARAM_PFVF(RAWF_START);
 5304                 param[1] = FW_PARAM_PFVF(RAWF_END);
 5305                 rc = -t4_query_params(sc, sc->mbox, sc->pf, 0, 2, param, val);
 5306                 if (rc != 0) {
 5307                         device_printf(sc->dev,
 5308                            "failed to query rawf parameters: %d.\n", rc);
 5309                         return (rc);
 5310                 }
 5311                 if ((int)val[1] > (int)val[0]) {
 5312                         sc->rawf_base = val[0];
 5313                         sc->nrawf = val[1] - val[0] + 1;
 5314                 }
 5315         }
 5316 
 5317         /*
 5318          * MPSBGMAP is queried separately because only recent firmwares support
 5319          * it as a parameter and we don't want the compound query above to fail
 5320          * on older firmwares.
 5321          */
 5322         param[0] = FW_PARAM_DEV(MPSBGMAP);
 5323         val[0] = 0;
 5324         rc = -t4_query_params(sc, sc->mbox, sc->pf, 0, 1, param, val);
 5325         if (rc == 0)
 5326                 sc->params.mps_bg_map = val[0];
 5327         else
 5328                 sc->params.mps_bg_map = 0;
 5329 
 5330         /*
 5331          * Determine whether the firmware supports the filter2 work request.
 5332          * This is queried separately for the same reason as MPSBGMAP above.
 5333          */
 5334         param[0] = FW_PARAM_DEV(FILTER2_WR);
 5335         val[0] = 0;
 5336         rc = -t4_query_params(sc, sc->mbox, sc->pf, 0, 1, param, val);
 5337         if (rc == 0)
 5338                 sc->params.filter2_wr_support = val[0] != 0;
 5339         else
 5340                 sc->params.filter2_wr_support = 0;
 5341 
 5342         /*
 5343          * Find out whether we're allowed to use the ULPTX MEMWRITE DSGL.
 5344          * This is queried separately for the same reason as other params above.
 5345          */
 5346         param[0] = FW_PARAM_DEV(ULPTX_MEMWRITE_DSGL);
 5347         val[0] = 0;
 5348         rc = -t4_query_params(sc, sc->mbox, sc->pf, 0, 1, param, val);
 5349         if (rc == 0)
 5350                 sc->params.ulptx_memwrite_dsgl = val[0] != 0;
 5351         else
 5352                 sc->params.ulptx_memwrite_dsgl = false;
 5353 
 5354         /* FW_RI_FR_NSMR_TPTE_WR support */
 5355         param[0] = FW_PARAM_DEV(RI_FR_NSMR_TPTE_WR);
 5356         rc = -t4_query_params(sc, sc->mbox, sc->pf, 0, 1, param, val);
 5357         if (rc == 0)
 5358                 sc->params.fr_nsmr_tpte_wr_support = val[0] != 0;
 5359         else
 5360                 sc->params.fr_nsmr_tpte_wr_support = false;
 5361 
 5362         /* Support for 512 SGL entries per FR MR. */
 5363         param[0] = FW_PARAM_DEV(DEV_512SGL_MR);
 5364         rc = -t4_query_params(sc, sc->mbox, sc->pf, 0, 1, param, val);
 5365         if (rc == 0)
 5366                 sc->params.dev_512sgl_mr = val[0] != 0;
 5367         else
 5368                 sc->params.dev_512sgl_mr = false;
 5369 
 5370         param[0] = FW_PARAM_PFVF(MAX_PKTS_PER_ETH_TX_PKTS_WR);
 5371         rc = -t4_query_params(sc, sc->mbox, sc->pf, 0, 1, param, val);
 5372         if (rc == 0)
 5373                 sc->params.max_pkts_per_eth_tx_pkts_wr = val[0];
 5374         else
 5375                 sc->params.max_pkts_per_eth_tx_pkts_wr = 15;
 5376 
 5377         param[0] = FW_PARAM_DEV(NUM_TM_CLASS);
 5378         rc = -t4_query_params(sc, sc->mbox, sc->pf, 0, 1, param, val);
 5379         if (rc == 0) {
 5380                 MPASS(val[0] > 0 && val[0] < 256);      /* nsched_cls is 8b */
 5381                 sc->params.nsched_cls = val[0];
 5382         } else
 5383                 sc->params.nsched_cls = sc->chip_params->nsched_cls;
 5384 
 5385         /* get capabilites */
 5386         bzero(&caps, sizeof(caps));
 5387         caps.op_to_write = htobe32(V_FW_CMD_OP(FW_CAPS_CONFIG_CMD) |
 5388             F_FW_CMD_REQUEST | F_FW_CMD_READ);
 5389         caps.cfvalid_to_len16 = htobe32(FW_LEN16(caps));
 5390         rc = -t4_wr_mbox(sc, sc->mbox, &caps, sizeof(caps), &caps);
 5391         if (rc != 0) {
 5392                 device_printf(sc->dev,
 5393                     "failed to get card capabilities: %d.\n", rc);
 5394                 return (rc);
 5395         }
 5396 
 5397 #define READ_CAPS(x) do { \
 5398         sc->x = htobe16(caps.x); \
 5399 } while (0)
 5400         READ_CAPS(nbmcaps);
 5401         READ_CAPS(linkcaps);
 5402         READ_CAPS(switchcaps);
 5403         READ_CAPS(niccaps);
 5404         READ_CAPS(toecaps);
 5405         READ_CAPS(rdmacaps);
 5406         READ_CAPS(cryptocaps);
 5407         READ_CAPS(iscsicaps);
 5408         READ_CAPS(fcoecaps);
 5409 
 5410         if (sc->niccaps & FW_CAPS_CONFIG_NIC_HASHFILTER) {
 5411                 MPASS(chip_id(sc) > CHELSIO_T4);
 5412                 MPASS(sc->toecaps == 0);
 5413                 sc->toecaps = 0;
 5414 
 5415                 param[0] = FW_PARAM_DEV(NTID);
 5416                 rc = -t4_query_params(sc, sc->mbox, sc->pf, 0, 1, param, val);
 5417                 if (rc != 0) {
 5418                         device_printf(sc->dev,
 5419                             "failed to query HASHFILTER parameters: %d.\n", rc);
 5420                         return (rc);
 5421                 }
 5422                 sc->tids.ntids = val[0];
 5423                 if (sc->params.fw_vers < FW_VERSION32(1, 20, 5, 0)) {
 5424                         MPASS(sc->tids.ntids >= sc->tids.nhpftids);
 5425                         sc->tids.ntids -= sc->tids.nhpftids;
 5426                 }
 5427                 sc->tids.natids = min(sc->tids.ntids / 2, MAX_ATIDS);
 5428                 sc->params.hash_filter = 1;
 5429         }
 5430         if (sc->niccaps & FW_CAPS_CONFIG_NIC_ETHOFLD) {
 5431                 param[0] = FW_PARAM_PFVF(ETHOFLD_START);
 5432                 param[1] = FW_PARAM_PFVF(ETHOFLD_END);
 5433                 param[2] = FW_PARAM_DEV(FLOWC_BUFFIFO_SZ);
 5434                 rc = -t4_query_params(sc, sc->mbox, sc->pf, 0, 3, param, val);
 5435                 if (rc != 0) {
 5436                         device_printf(sc->dev,
 5437                             "failed to query NIC parameters: %d.\n", rc);
 5438                         return (rc);
 5439                 }
 5440                 if ((int)val[1] > (int)val[0]) {
 5441                         sc->tids.etid_base = val[0];
 5442                         sc->tids.etid_end = val[1];
 5443                         sc->tids.netids = val[1] - val[0] + 1;
 5444                         sc->params.eo_wr_cred = val[2];
 5445                         sc->params.ethoffload = 1;
 5446                 }
 5447         }
 5448         if (sc->toecaps) {
 5449                 /* query offload-related parameters */
 5450                 param[0] = FW_PARAM_DEV(NTID);
 5451                 param[1] = FW_PARAM_PFVF(SERVER_START);
 5452                 param[2] = FW_PARAM_PFVF(SERVER_END);
 5453                 param[3] = FW_PARAM_PFVF(TDDP_START);
 5454                 param[4] = FW_PARAM_PFVF(TDDP_END);
 5455                 param[5] = FW_PARAM_DEV(FLOWC_BUFFIFO_SZ);
 5456                 rc = -t4_query_params(sc, sc->mbox, sc->pf, 0, 6, param, val);
 5457                 if (rc != 0) {
 5458                         device_printf(sc->dev,
 5459                             "failed to query TOE parameters: %d.\n", rc);
 5460                         return (rc);
 5461                 }
 5462                 sc->tids.ntids = val[0];
 5463                 if (sc->params.fw_vers < FW_VERSION32(1, 20, 5, 0)) {
 5464                         MPASS(sc->tids.ntids >= sc->tids.nhpftids);
 5465                         sc->tids.ntids -= sc->tids.nhpftids;
 5466                 }
 5467                 sc->tids.natids = min(sc->tids.ntids / 2, MAX_ATIDS);
 5468                 if ((int)val[2] > (int)val[1]) {
 5469                         sc->tids.stid_base = val[1];
 5470                         sc->tids.nstids = val[2] - val[1] + 1;
 5471                 }
 5472                 sc->vres.ddp.start = val[3];
 5473                 sc->vres.ddp.size = val[4] - val[3] + 1;
 5474                 sc->params.ofldq_wr_cred = val[5];
 5475                 sc->params.offload = 1;
 5476         } else {
 5477                 /*
 5478                  * The firmware attempts memfree TOE configuration for -SO cards
 5479                  * and will report toecaps=0 if it runs out of resources (this
 5480                  * depends on the config file).  It may not report 0 for other
 5481                  * capabilities dependent on the TOE in this case.  Set them to
 5482                  * 0 here so that the driver doesn't bother tracking resources
 5483                  * that will never be used.
 5484                  */
 5485                 sc->iscsicaps = 0;
 5486                 sc->rdmacaps = 0;
 5487         }
 5488         if (sc->rdmacaps) {
 5489                 param[0] = FW_PARAM_PFVF(STAG_START);
 5490                 param[1] = FW_PARAM_PFVF(STAG_END);
 5491                 param[2] = FW_PARAM_PFVF(RQ_START);
 5492                 param[3] = FW_PARAM_PFVF(RQ_END);
 5493                 param[4] = FW_PARAM_PFVF(PBL_START);
 5494                 param[5] = FW_PARAM_PFVF(PBL_END);
 5495                 rc = -t4_query_params(sc, sc->mbox, sc->pf, 0, 6, param, val);
 5496                 if (rc != 0) {
 5497                         device_printf(sc->dev,
 5498                             "failed to query RDMA parameters(1): %d.\n", rc);
 5499                         return (rc);
 5500                 }
 5501                 sc->vres.stag.start = val[0];
 5502                 sc->vres.stag.size = val[1] - val[0] + 1;
 5503                 sc->vres.rq.start = val[2];
 5504                 sc->vres.rq.size = val[3] - val[2] + 1;
 5505                 sc->vres.pbl.start = val[4];
 5506                 sc->vres.pbl.size = val[5] - val[4] + 1;
 5507 
 5508                 param[0] = FW_PARAM_PFVF(SQRQ_START);
 5509                 param[1] = FW_PARAM_PFVF(SQRQ_END);
 5510                 param[2] = FW_PARAM_PFVF(CQ_START);
 5511                 param[3] = FW_PARAM_PFVF(CQ_END);
 5512                 param[4] = FW_PARAM_PFVF(OCQ_START);
 5513                 param[5] = FW_PARAM_PFVF(OCQ_END);
 5514                 rc = -t4_query_params(sc, sc->mbox, sc->pf, 0, 6, param, val);
 5515                 if (rc != 0) {
 5516                         device_printf(sc->dev,
 5517                             "failed to query RDMA parameters(2): %d.\n", rc);
 5518                         return (rc);
 5519                 }
 5520                 sc->vres.qp.start = val[0];
 5521                 sc->vres.qp.size = val[1] - val[0] + 1;
 5522                 sc->vres.cq.start = val[2];
 5523                 sc->vres.cq.size = val[3] - val[2] + 1;
 5524                 sc->vres.ocq.start = val[4];
 5525                 sc->vres.ocq.size = val[5] - val[4] + 1;
 5526 
 5527                 param[0] = FW_PARAM_PFVF(SRQ_START);
 5528                 param[1] = FW_PARAM_PFVF(SRQ_END);
 5529                 param[2] = FW_PARAM_DEV(MAXORDIRD_QP);
 5530                 param[3] = FW_PARAM_DEV(MAXIRD_ADAPTER);
 5531                 rc = -t4_query_params(sc, sc->mbox, sc->pf, 0, 4, param, val);
 5532                 if (rc != 0) {
 5533                         device_printf(sc->dev,
 5534                             "failed to query RDMA parameters(3): %d.\n", rc);
 5535                         return (rc);
 5536                 }
 5537                 sc->vres.srq.start = val[0];
 5538                 sc->vres.srq.size = val[1] - val[0] + 1;
 5539                 sc->params.max_ordird_qp = val[2];
 5540                 sc->params.max_ird_adapter = val[3];
 5541         }
 5542         if (sc->iscsicaps) {
 5543                 param[0] = FW_PARAM_PFVF(ISCSI_START);
 5544                 param[1] = FW_PARAM_PFVF(ISCSI_END);
 5545                 rc = -t4_query_params(sc, sc->mbox, sc->pf, 0, 2, param, val);
 5546                 if (rc != 0) {
 5547                         device_printf(sc->dev,
 5548                             "failed to query iSCSI parameters: %d.\n", rc);
 5549                         return (rc);
 5550                 }
 5551                 sc->vres.iscsi.start = val[0];
 5552                 sc->vres.iscsi.size = val[1] - val[0] + 1;
 5553         }
 5554         if (sc->cryptocaps & FW_CAPS_CONFIG_TLSKEYS) {
 5555                 param[0] = FW_PARAM_PFVF(TLS_START);
 5556                 param[1] = FW_PARAM_PFVF(TLS_END);
 5557                 rc = -t4_query_params(sc, sc->mbox, sc->pf, 0, 2, param, val);
 5558                 if (rc != 0) {
 5559                         device_printf(sc->dev,
 5560                             "failed to query TLS parameters: %d.\n", rc);
 5561                         return (rc);
 5562                 }
 5563                 sc->vres.key.start = val[0];
 5564                 sc->vres.key.size = val[1] - val[0] + 1;
 5565         }
 5566 
 5567         /*
 5568          * We've got the params we wanted to query directly from the firmware.
 5569          * Grab some others via other means.
 5570          */
 5571         t4_init_sge_params(sc);
 5572         t4_init_tp_params(sc);
 5573         t4_read_mtu_tbl(sc, sc->params.mtus, NULL);
 5574         t4_load_mtus(sc, sc->params.mtus, sc->params.a_wnd, sc->params.b_wnd);
 5575 
 5576         rc = t4_verify_chip_settings(sc);
 5577         if (rc != 0)
 5578                 return (rc);
 5579         t4_init_rx_buf_info(sc);
 5580 
 5581         return (rc);
 5582 }
 5583 
 5584 #ifdef KERN_TLS
 5585 static void
 5586 ktls_tick(void *arg)
 5587 {
 5588         struct adapter *sc;
 5589         uint32_t tstamp;
 5590 
 5591         sc = arg;
 5592         tstamp = tcp_ts_getticks();
 5593         t4_write_reg(sc, A_TP_SYNC_TIME_HI, tstamp >> 1);
 5594         t4_write_reg(sc, A_TP_SYNC_TIME_LO, tstamp << 31);
 5595         callout_schedule_sbt(&sc->ktls_tick, SBT_1MS, 0, C_HARDCLOCK);
 5596 }
 5597 
 5598 static int
 5599 t6_config_kern_tls(struct adapter *sc, bool enable)
 5600 {
 5601         int rc;
 5602         uint32_t param = V_FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) |
 5603             V_FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_KTLS_HW) |
 5604             V_FW_PARAMS_PARAM_Y(enable ? 1 : 0) |
 5605             V_FW_PARAMS_PARAM_Z(FW_PARAMS_PARAM_DEV_KTLS_HW_USER_ENABLE);
 5606 
 5607         rc = -t4_set_params(sc, sc->mbox, sc->pf, 0, 1, &param, &param);
 5608         if (rc != 0) {
 5609                 CH_ERR(sc, "failed to %s NIC TLS: %d\n",
 5610                     enable ?  "enable" : "disable", rc);
 5611                 return (rc);
 5612         }
 5613 
 5614         if (enable) {
 5615                 sc->flags |= KERN_TLS_ON;
 5616                 callout_reset_sbt(&sc->ktls_tick, SBT_1MS, 0, ktls_tick, sc,
 5617                     C_HARDCLOCK);
 5618         } else {
 5619                 sc->flags &= ~KERN_TLS_ON;
 5620                 callout_stop(&sc->ktls_tick);
 5621         }
 5622 
 5623         return (rc);
 5624 }
 5625 #endif
 5626 
 5627 static int
 5628 set_params__post_init(struct adapter *sc)
 5629 {
 5630         uint32_t mask, param, val;
 5631 #ifdef TCP_OFFLOAD
 5632         int i, v, shift;
 5633 #endif
 5634 
 5635         /* ask for encapsulated CPLs */
 5636         param = FW_PARAM_PFVF(CPLFW4MSG_ENCAP);
 5637         val = 1;
 5638         (void)t4_set_params(sc, sc->mbox, sc->pf, 0, 1, &param, &val);
 5639 
 5640         /* Enable 32b port caps if the firmware supports it. */
 5641         param = FW_PARAM_PFVF(PORT_CAPS32);
 5642         val = 1;
 5643         if (t4_set_params(sc, sc->mbox, sc->pf, 0, 1, &param, &val) == 0)
 5644                 sc->params.port_caps32 = 1;
 5645 
 5646         /* Let filter + maskhash steer to a part of the VI's RSS region. */
 5647         val = 1 << (G_MASKSIZE(t4_read_reg(sc, A_TP_RSS_CONFIG_TNL)) - 1);
 5648         t4_set_reg_field(sc, A_TP_RSS_CONFIG_TNL, V_MASKFILTER(M_MASKFILTER),
 5649             V_MASKFILTER(val - 1));
 5650 
 5651         mask = F_DROPERRORANY | F_DROPERRORMAC | F_DROPERRORIPVER |
 5652             F_DROPERRORFRAG | F_DROPERRORATTACK | F_DROPERRORETHHDRLEN |
 5653             F_DROPERRORIPHDRLEN | F_DROPERRORTCPHDRLEN | F_DROPERRORPKTLEN |
 5654             F_DROPERRORTCPOPT | F_DROPERRORCSUMIP | F_DROPERRORCSUM;
 5655         val = 0;
 5656         if (chip_id(sc) < CHELSIO_T6 && t4_attack_filter != 0) {
 5657                 t4_set_reg_field(sc, A_TP_GLOBAL_CONFIG, F_ATTACKFILTERENABLE,
 5658                     F_ATTACKFILTERENABLE);
 5659                 val |= F_DROPERRORATTACK;
 5660         }
 5661         if (t4_drop_ip_fragments != 0) {
 5662                 t4_set_reg_field(sc, A_TP_GLOBAL_CONFIG, F_FRAGMENTDROP,
 5663                     F_FRAGMENTDROP);
 5664                 val |= F_DROPERRORFRAG;
 5665         }
 5666         if (t4_drop_pkts_with_l2_errors != 0)
 5667                 val |= F_DROPERRORMAC | F_DROPERRORETHHDRLEN;
 5668         if (t4_drop_pkts_with_l3_errors != 0) {
 5669                 val |= F_DROPERRORIPVER | F_DROPERRORIPHDRLEN |
 5670                     F_DROPERRORCSUMIP;
 5671         }
 5672         if (t4_drop_pkts_with_l4_errors != 0) {
 5673                 val |= F_DROPERRORTCPHDRLEN | F_DROPERRORPKTLEN |
 5674                     F_DROPERRORTCPOPT | F_DROPERRORCSUM;
 5675         }
 5676         t4_set_reg_field(sc, A_TP_ERR_CONFIG, mask, val);
 5677 
 5678 #ifdef TCP_OFFLOAD
 5679         /*
 5680          * Override the TOE timers with user provided tunables.  This is not the
 5681          * recommended way to change the timers (the firmware config file is) so
 5682          * these tunables are not documented.
 5683          *
 5684          * All the timer tunables are in microseconds.
 5685          */
 5686         if (t4_toe_keepalive_idle != 0) {
 5687                 v = us_to_tcp_ticks(sc, t4_toe_keepalive_idle);
 5688                 v &= M_KEEPALIVEIDLE;
 5689                 t4_set_reg_field(sc, A_TP_KEEP_IDLE,
 5690                     V_KEEPALIVEIDLE(M_KEEPALIVEIDLE), V_KEEPALIVEIDLE(v));
 5691         }
 5692         if (t4_toe_keepalive_interval != 0) {
 5693                 v = us_to_tcp_ticks(sc, t4_toe_keepalive_interval);
 5694                 v &= M_KEEPALIVEINTVL;
 5695                 t4_set_reg_field(sc, A_TP_KEEP_INTVL,
 5696                     V_KEEPALIVEINTVL(M_KEEPALIVEINTVL), V_KEEPALIVEINTVL(v));
 5697         }
 5698         if (t4_toe_keepalive_count != 0) {
 5699                 v = t4_toe_keepalive_count & M_KEEPALIVEMAXR2;
 5700                 t4_set_reg_field(sc, A_TP_SHIFT_CNT,
 5701                     V_KEEPALIVEMAXR1(M_KEEPALIVEMAXR1) |
 5702                     V_KEEPALIVEMAXR2(M_KEEPALIVEMAXR2),
 5703                     V_KEEPALIVEMAXR1(1) | V_KEEPALIVEMAXR2(v));
 5704         }
 5705         if (t4_toe_rexmt_min != 0) {
 5706                 v = us_to_tcp_ticks(sc, t4_toe_rexmt_min);
 5707                 v &= M_RXTMIN;
 5708                 t4_set_reg_field(sc, A_TP_RXT_MIN,
 5709                     V_RXTMIN(M_RXTMIN), V_RXTMIN(v));
 5710         }
 5711         if (t4_toe_rexmt_max != 0) {
 5712                 v = us_to_tcp_ticks(sc, t4_toe_rexmt_max);
 5713                 v &= M_RXTMAX;
 5714                 t4_set_reg_field(sc, A_TP_RXT_MAX,
 5715                     V_RXTMAX(M_RXTMAX), V_RXTMAX(v));
 5716         }
 5717         if (t4_toe_rexmt_count != 0) {
 5718                 v = t4_toe_rexmt_count & M_RXTSHIFTMAXR2;
 5719                 t4_set_reg_field(sc, A_TP_SHIFT_CNT,
 5720                     V_RXTSHIFTMAXR1(M_RXTSHIFTMAXR1) |
 5721                     V_RXTSHIFTMAXR2(M_RXTSHIFTMAXR2),
 5722                     V_RXTSHIFTMAXR1(1) | V_RXTSHIFTMAXR2(v));
 5723         }
 5724         for (i = 0; i < nitems(t4_toe_rexmt_backoff); i++) {
 5725                 if (t4_toe_rexmt_backoff[i] != -1) {
 5726                         v = t4_toe_rexmt_backoff[i] & M_TIMERBACKOFFINDEX0;
 5727                         shift = (i & 3) << 3;
 5728                         t4_set_reg_field(sc, A_TP_TCP_BACKOFF_REG0 + (i & ~3),
 5729                             M_TIMERBACKOFFINDEX0 << shift, v << shift);
 5730                 }
 5731         }
 5732 #endif
 5733 
 5734 #ifdef KERN_TLS
 5735         if (sc->cryptocaps & FW_CAPS_CONFIG_TLSKEYS &&
 5736             sc->toecaps & FW_CAPS_CONFIG_TOE) {
 5737                 /*
 5738                  * Limit TOE connections to 2 reassembly "islands".
 5739                  * This is required to permit migrating TOE
 5740                  * connections to UPL_MODE_TLS.
 5741                  */
 5742                 t4_tp_wr_bits_indirect(sc, A_TP_FRAG_CONFIG,
 5743                     V_PASSMODE(M_PASSMODE), V_PASSMODE(2));
 5744         }
 5745 
 5746         if (is_ktls(sc)) {
 5747                 sc->tlst.inline_keys = t4_tls_inline_keys;
 5748                 sc->tlst.combo_wrs = t4_tls_combo_wrs;
 5749                 if (t4_kern_tls != 0 && is_t6(sc))
 5750                         t6_config_kern_tls(sc, true);
 5751         }
 5752 #endif
 5753         return (0);
 5754 }
 5755 
 5756 #undef FW_PARAM_PFVF
 5757 #undef FW_PARAM_DEV
 5758 
 5759 static void
 5760 t4_set_desc(struct adapter *sc)
 5761 {
 5762         char buf[128];
 5763         struct adapter_params *p = &sc->params;
 5764 
 5765         snprintf(buf, sizeof(buf), "Chelsio %s", p->vpd.id);
 5766 
 5767         device_set_desc_copy(sc->dev, buf);
 5768 }
 5769 
 5770 static inline void
 5771 ifmedia_add4(struct ifmedia *ifm, int m)
 5772 {
 5773 
 5774         ifmedia_add(ifm, m, 0, NULL);
 5775         ifmedia_add(ifm, m | IFM_ETH_TXPAUSE, 0, NULL);
 5776         ifmedia_add(ifm, m | IFM_ETH_RXPAUSE, 0, NULL);
 5777         ifmedia_add(ifm, m | IFM_ETH_TXPAUSE | IFM_ETH_RXPAUSE, 0, NULL);
 5778 }
 5779 
 5780 /*
 5781  * This is the selected media, which is not quite the same as the active media.
 5782  * The media line in ifconfig is "media: Ethernet selected (active)" if selected
 5783  * and active are not the same, and "media: Ethernet selected" otherwise.
 5784  */
 5785 static void
 5786 set_current_media(struct port_info *pi)
 5787 {
 5788         struct link_config *lc;
 5789         struct ifmedia *ifm;
 5790         int mword;
 5791         u_int speed;
 5792 
 5793         PORT_LOCK_ASSERT_OWNED(pi);
 5794 
 5795         /* Leave current media alone if it's already set to IFM_NONE. */
 5796         ifm = &pi->media;
 5797         if (ifm->ifm_cur != NULL &&
 5798             IFM_SUBTYPE(ifm->ifm_cur->ifm_media) == IFM_NONE)
 5799                 return;
 5800 
 5801         lc = &pi->link_cfg;
 5802         if (lc->requested_aneg != AUTONEG_DISABLE &&
 5803             lc->pcaps & FW_PORT_CAP32_ANEG) {
 5804                 ifmedia_set(ifm, IFM_ETHER | IFM_AUTO);
 5805                 return;
 5806         }
 5807         mword = IFM_ETHER | IFM_FDX;
 5808         if (lc->requested_fc & PAUSE_TX)
 5809                 mword |= IFM_ETH_TXPAUSE;
 5810         if (lc->requested_fc & PAUSE_RX)
 5811                 mword |= IFM_ETH_RXPAUSE;
 5812         if (lc->requested_speed == 0)
 5813                 speed = port_top_speed(pi) * 1000;      /* Gbps -> Mbps */
 5814         else
 5815                 speed = lc->requested_speed;
 5816         mword |= port_mword(pi, speed_to_fwcap(speed));
 5817         ifmedia_set(ifm, mword);
 5818 }
 5819 
 5820 /*
 5821  * Returns true if the ifmedia list for the port cannot change.
 5822  */
 5823 static bool
 5824 fixed_ifmedia(struct port_info *pi)
 5825 {
 5826 
 5827         return (pi->port_type == FW_PORT_TYPE_BT_SGMII ||
 5828             pi->port_type == FW_PORT_TYPE_BT_XFI ||
 5829             pi->port_type == FW_PORT_TYPE_BT_XAUI ||
 5830             pi->port_type == FW_PORT_TYPE_KX4 ||
 5831             pi->port_type == FW_PORT_TYPE_KX ||
 5832             pi->port_type == FW_PORT_TYPE_KR ||
 5833             pi->port_type == FW_PORT_TYPE_BP_AP ||
 5834             pi->port_type == FW_PORT_TYPE_BP4_AP ||
 5835             pi->port_type == FW_PORT_TYPE_BP40_BA ||
 5836             pi->port_type == FW_PORT_TYPE_KR4_100G ||
 5837             pi->port_type == FW_PORT_TYPE_KR_SFP28 ||
 5838             pi->port_type == FW_PORT_TYPE_KR_XLAUI);
 5839 }
 5840 
 5841 static void
 5842 build_medialist(struct port_info *pi)
 5843 {
 5844         uint32_t ss, speed;
 5845         int unknown, mword, bit;
 5846         struct link_config *lc;
 5847         struct ifmedia *ifm;
 5848 
 5849         PORT_LOCK_ASSERT_OWNED(pi);
 5850 
 5851         if (pi->flags & FIXED_IFMEDIA)
 5852                 return;
 5853 
 5854         /*
 5855          * Rebuild the ifmedia list.
 5856          */
 5857         ifm = &pi->media;
 5858         ifmedia_removeall(ifm);
 5859         lc = &pi->link_cfg;
 5860         ss = G_FW_PORT_CAP32_SPEED(lc->pcaps); /* Supported Speeds */
 5861         if (__predict_false(ss == 0)) { /* not supposed to happen. */
 5862                 MPASS(ss != 0);
 5863 no_media:
 5864                 MPASS(LIST_EMPTY(&ifm->ifm_list));
 5865                 ifmedia_add(ifm, IFM_ETHER | IFM_NONE, 0, NULL);
 5866                 ifmedia_set(ifm, IFM_ETHER | IFM_NONE);
 5867                 return;
 5868         }
 5869 
 5870         unknown = 0;
 5871         for (bit = S_FW_PORT_CAP32_SPEED; bit < fls(ss); bit++) {
 5872                 speed = 1 << bit;
 5873                 MPASS(speed & M_FW_PORT_CAP32_SPEED);
 5874                 if (ss & speed) {
 5875                         mword = port_mword(pi, speed);
 5876                         if (mword == IFM_NONE) {
 5877                                 goto no_media;
 5878                         } else if (mword == IFM_UNKNOWN)
 5879                                 unknown++;
 5880                         else
 5881                                 ifmedia_add4(ifm, IFM_ETHER | IFM_FDX | mword);
 5882                 }
 5883         }
 5884         if (unknown > 0) /* Add one unknown for all unknown media types. */
 5885                 ifmedia_add4(ifm, IFM_ETHER | IFM_FDX | IFM_UNKNOWN);
 5886         if (lc->pcaps & FW_PORT_CAP32_ANEG)
 5887                 ifmedia_add(ifm, IFM_ETHER | IFM_AUTO, 0, NULL);
 5888 
 5889         set_current_media(pi);
 5890 }
 5891 
 5892 /*
 5893  * Initialize the requested fields in the link config based on driver tunables.
 5894  */
 5895 static void
 5896 init_link_config(struct port_info *pi)
 5897 {
 5898         struct link_config *lc = &pi->link_cfg;
 5899 
 5900         PORT_LOCK_ASSERT_OWNED(pi);
 5901 
 5902         lc->requested_caps = 0;
 5903         lc->requested_speed = 0;
 5904 
 5905         if (t4_autoneg == 0)
 5906                 lc->requested_aneg = AUTONEG_DISABLE;
 5907         else if (t4_autoneg == 1)
 5908                 lc->requested_aneg = AUTONEG_ENABLE;
 5909         else
 5910                 lc->requested_aneg = AUTONEG_AUTO;
 5911 
 5912         lc->requested_fc = t4_pause_settings & (PAUSE_TX | PAUSE_RX |
 5913             PAUSE_AUTONEG);
 5914 
 5915         if (t4_fec & FEC_AUTO)
 5916                 lc->requested_fec = FEC_AUTO;
 5917         else if (t4_fec == 0)
 5918                 lc->requested_fec = FEC_NONE;
 5919         else {
 5920                 /* -1 is handled by the FEC_AUTO block above and not here. */
 5921                 lc->requested_fec = t4_fec &
 5922                     (FEC_RS | FEC_BASER_RS | FEC_NONE | FEC_MODULE);
 5923                 if (lc->requested_fec == 0)
 5924                         lc->requested_fec = FEC_AUTO;
 5925         }
 5926         if (t4_force_fec < 0)
 5927                 lc->force_fec = -1;
 5928         else if (t4_force_fec > 0)
 5929                 lc->force_fec = 1;
 5930         else
 5931                 lc->force_fec = 0;
 5932 }
 5933 
 5934 /*
 5935  * Makes sure that all requested settings comply with what's supported by the
 5936  * port.  Returns the number of settings that were invalid and had to be fixed.
 5937  */
 5938 static int
 5939 fixup_link_config(struct port_info *pi)
 5940 {
 5941         int n = 0;
 5942         struct link_config *lc = &pi->link_cfg;
 5943         uint32_t fwspeed;
 5944 
 5945         PORT_LOCK_ASSERT_OWNED(pi);
 5946 
 5947         /* Speed (when not autonegotiating) */
 5948         if (lc->requested_speed != 0) {
 5949                 fwspeed = speed_to_fwcap(lc->requested_speed);
 5950                 if ((fwspeed & lc->pcaps) == 0) {
 5951                         n++;
 5952                         lc->requested_speed = 0;
 5953                 }
 5954         }
 5955 
 5956         /* Link autonegotiation */
 5957         MPASS(lc->requested_aneg == AUTONEG_ENABLE ||
 5958             lc->requested_aneg == AUTONEG_DISABLE ||
 5959             lc->requested_aneg == AUTONEG_AUTO);
 5960         if (lc->requested_aneg == AUTONEG_ENABLE &&
 5961             !(lc->pcaps & FW_PORT_CAP32_ANEG)) {
 5962                 n++;
 5963                 lc->requested_aneg = AUTONEG_AUTO;
 5964         }
 5965 
 5966         /* Flow control */
 5967         MPASS((lc->requested_fc & ~(PAUSE_TX | PAUSE_RX | PAUSE_AUTONEG)) == 0);
 5968         if (lc->requested_fc & PAUSE_TX &&
 5969             !(lc->pcaps & FW_PORT_CAP32_FC_TX)) {
 5970                 n++;
 5971                 lc->requested_fc &= ~PAUSE_TX;
 5972         }
 5973         if (lc->requested_fc & PAUSE_RX &&
 5974             !(lc->pcaps & FW_PORT_CAP32_FC_RX)) {
 5975                 n++;
 5976                 lc->requested_fc &= ~PAUSE_RX;
 5977         }
 5978         if (!(lc->requested_fc & PAUSE_AUTONEG) &&
 5979             !(lc->pcaps & FW_PORT_CAP32_FORCE_PAUSE)) {
 5980                 n++;
 5981                 lc->requested_fc |= PAUSE_AUTONEG;
 5982         }
 5983 
 5984         /* FEC */
 5985         if ((lc->requested_fec & FEC_RS &&
 5986             !(lc->pcaps & FW_PORT_CAP32_FEC_RS)) ||
 5987             (lc->requested_fec & FEC_BASER_RS &&
 5988             !(lc->pcaps & FW_PORT_CAP32_FEC_BASER_RS))) {
 5989                 n++;
 5990                 lc->requested_fec = FEC_AUTO;
 5991         }
 5992 
 5993         return (n);
 5994 }
 5995 
 5996 /*
 5997  * Apply the requested L1 settings, which are expected to be valid, to the
 5998  * hardware.
 5999  */
 6000 static int
 6001 apply_link_config(struct port_info *pi)
 6002 {
 6003         struct adapter *sc = pi->adapter;
 6004         struct link_config *lc = &pi->link_cfg;
 6005         int rc;
 6006 
 6007 #ifdef INVARIANTS
 6008         ASSERT_SYNCHRONIZED_OP(sc);
 6009         PORT_LOCK_ASSERT_OWNED(pi);
 6010 
 6011         if (lc->requested_aneg == AUTONEG_ENABLE)
 6012                 MPASS(lc->pcaps & FW_PORT_CAP32_ANEG);
 6013         if (!(lc->requested_fc & PAUSE_AUTONEG))
 6014                 MPASS(lc->pcaps & FW_PORT_CAP32_FORCE_PAUSE);
 6015         if (lc->requested_fc & PAUSE_TX)
 6016                 MPASS(lc->pcaps & FW_PORT_CAP32_FC_TX);
 6017         if (lc->requested_fc & PAUSE_RX)
 6018                 MPASS(lc->pcaps & FW_PORT_CAP32_FC_RX);
 6019         if (lc->requested_fec & FEC_RS)
 6020                 MPASS(lc->pcaps & FW_PORT_CAP32_FEC_RS);
 6021         if (lc->requested_fec & FEC_BASER_RS)
 6022                 MPASS(lc->pcaps & FW_PORT_CAP32_FEC_BASER_RS);
 6023 #endif
 6024         rc = -t4_link_l1cfg(sc, sc->mbox, pi->tx_chan, lc);
 6025         if (rc != 0) {
 6026                 /* Don't complain if the VF driver gets back an EPERM. */
 6027                 if (!(sc->flags & IS_VF) || rc != FW_EPERM)
 6028                         device_printf(pi->dev, "l1cfg failed: %d\n", rc);
 6029         } else {
 6030                 /*
 6031                  * An L1_CFG will almost always result in a link-change event if
 6032                  * the link is up, and the driver will refresh the actual
 6033                  * fec/fc/etc. when the notification is processed.  If the link
 6034                  * is down then the actual settings are meaningless.
 6035                  *
 6036                  * This takes care of the case where a change in the L1 settings
 6037                  * may not result in a notification.
 6038                  */
 6039                 if (lc->link_ok && !(lc->requested_fc & PAUSE_AUTONEG))
 6040                         lc->fc = lc->requested_fc & (PAUSE_TX | PAUSE_RX);
 6041         }
 6042         return (rc);
 6043 }
 6044 
 6045 #define FW_MAC_EXACT_CHUNK      7
 6046 struct mcaddr_ctx {
 6047         struct ifnet *ifp;
 6048         const uint8_t *mcaddr[FW_MAC_EXACT_CHUNK];
 6049         uint64_t hash;
 6050         int i;
 6051         int del;
 6052         int rc;
 6053 };
 6054 
 6055 static u_int
 6056 add_maddr(void *arg, struct sockaddr_dl *sdl, u_int cnt)
 6057 {
 6058         struct mcaddr_ctx *ctx = arg;
 6059         struct vi_info *vi = ctx->ifp->if_softc;
 6060         struct port_info *pi = vi->pi;
 6061         struct adapter *sc = pi->adapter;
 6062 
 6063         if (ctx->rc < 0)
 6064                 return (0);
 6065 
 6066         ctx->mcaddr[ctx->i] = LLADDR(sdl);
 6067         MPASS(ETHER_IS_MULTICAST(ctx->mcaddr[ctx->i]));
 6068         ctx->i++;
 6069 
 6070         if (ctx->i == FW_MAC_EXACT_CHUNK) {
 6071                 ctx->rc = t4_alloc_mac_filt(sc, sc->mbox, vi->viid, ctx->del,
 6072                     ctx->i, ctx->mcaddr, NULL, &ctx->hash, 0);
 6073                 if (ctx->rc < 0) {
 6074                         int j;
 6075 
 6076                         for (j = 0; j < ctx->i; j++) {
 6077                                 if_printf(ctx->ifp,
 6078                                     "failed to add mc address"
 6079                                     " %02x:%02x:%02x:"
 6080                                     "%02x:%02x:%02x rc=%d\n",
 6081                                     ctx->mcaddr[j][0], ctx->mcaddr[j][1],
 6082                                     ctx->mcaddr[j][2], ctx->mcaddr[j][3],
 6083                                     ctx->mcaddr[j][4], ctx->mcaddr[j][5],
 6084                                     -ctx->rc);
 6085                         }
 6086                         return (0);
 6087                 }
 6088                 ctx->del = 0;
 6089                 ctx->i = 0;
 6090         }
 6091 
 6092         return (1);
 6093 }
 6094 
 6095 /*
 6096  * Program the port's XGMAC based on parameters in ifnet.  The caller also
 6097  * indicates which parameters should be programmed (the rest are left alone).
 6098  */
 6099 int
 6100 update_mac_settings(struct ifnet *ifp, int flags)
 6101 {
 6102         int rc = 0;
 6103         struct vi_info *vi = ifp->if_softc;
 6104         struct port_info *pi = vi->pi;
 6105         struct adapter *sc = pi->adapter;
 6106         int mtu = -1, promisc = -1, allmulti = -1, vlanex = -1;
 6107         uint8_t match_all_mac[ETHER_ADDR_LEN] = {0};
 6108 
 6109         ASSERT_SYNCHRONIZED_OP(sc);
 6110         KASSERT(flags, ("%s: not told what to update.", __func__));
 6111 
 6112         if (flags & XGMAC_MTU)
 6113                 mtu = ifp->if_mtu;
 6114 
 6115         if (flags & XGMAC_PROMISC)
 6116                 promisc = ifp->if_flags & IFF_PROMISC ? 1 : 0;
 6117 
 6118         if (flags & XGMAC_ALLMULTI)
 6119                 allmulti = ifp->if_flags & IFF_ALLMULTI ? 1 : 0;
 6120 
 6121         if (flags & XGMAC_VLANEX)
 6122                 vlanex = ifp->if_capenable & IFCAP_VLAN_HWTAGGING ? 1 : 0;
 6123 
 6124         if (flags & (XGMAC_MTU|XGMAC_PROMISC|XGMAC_ALLMULTI|XGMAC_VLANEX)) {
 6125                 rc = -t4_set_rxmode(sc, sc->mbox, vi->viid, mtu, promisc,
 6126                     allmulti, 1, vlanex, false);
 6127                 if (rc) {
 6128                         if_printf(ifp, "set_rxmode (%x) failed: %d\n", flags,
 6129                             rc);
 6130                         return (rc);
 6131                 }
 6132         }
 6133 
 6134         if (flags & XGMAC_UCADDR) {
 6135                 uint8_t ucaddr[ETHER_ADDR_LEN];
 6136 
 6137                 bcopy(IF_LLADDR(ifp), ucaddr, sizeof(ucaddr));
 6138                 rc = t4_change_mac(sc, sc->mbox, vi->viid, vi->xact_addr_filt,
 6139                     ucaddr, true, &vi->smt_idx);
 6140                 if (rc < 0) {
 6141                         rc = -rc;
 6142                         if_printf(ifp, "change_mac failed: %d\n", rc);
 6143                         return (rc);
 6144                 } else {
 6145                         vi->xact_addr_filt = rc;
 6146                         rc = 0;
 6147                 }
 6148         }
 6149 
 6150         if (flags & XGMAC_MCADDRS) {
 6151                 struct epoch_tracker et;
 6152                 struct mcaddr_ctx ctx;
 6153                 int j;
 6154 
 6155                 ctx.ifp = ifp;
 6156                 ctx.hash = 0;
 6157                 ctx.i = 0;
 6158                 ctx.del = 1;
 6159                 ctx.rc = 0;
 6160                 /*
 6161                  * Unlike other drivers, we accumulate list of pointers into
 6162                  * interface address lists and we need to keep it safe even
 6163                  * after if_foreach_llmaddr() returns, thus we must enter the
 6164                  * network epoch.
 6165                  */
 6166                 NET_EPOCH_ENTER(et);
 6167                 if_foreach_llmaddr(ifp, add_maddr, &ctx);
 6168                 if (ctx.rc < 0) {
 6169                         NET_EPOCH_EXIT(et);
 6170                         rc = -ctx.rc;
 6171                         return (rc);
 6172                 }
 6173                 if (ctx.i > 0) {
 6174                         rc = t4_alloc_mac_filt(sc, sc->mbox, vi->viid,
 6175                             ctx.del, ctx.i, ctx.mcaddr, NULL, &ctx.hash, 0);
 6176                         NET_EPOCH_EXIT(et);
 6177                         if (rc < 0) {
 6178                                 rc = -rc;
 6179                                 for (j = 0; j < ctx.i; j++) {
 6180                                         if_printf(ifp,
 6181                                             "failed to add mcast address"
 6182                                             " %02x:%02x:%02x:"
 6183                                             "%02x:%02x:%02x rc=%d\n",
 6184                                             ctx.mcaddr[j][0], ctx.mcaddr[j][1],
 6185                                             ctx.mcaddr[j][2], ctx.mcaddr[j][3],
 6186                                             ctx.mcaddr[j][4], ctx.mcaddr[j][5],
 6187                                             rc);
 6188                                 }
 6189                                 return (rc);
 6190                         }
 6191                         ctx.del = 0;
 6192                 } else
 6193                         NET_EPOCH_EXIT(et);
 6194 
 6195                 rc = -t4_set_addr_hash(sc, sc->mbox, vi->viid, 0, ctx.hash, 0);
 6196                 if (rc != 0)
 6197                         if_printf(ifp, "failed to set mcast address hash: %d\n",
 6198                             rc);
 6199                 if (ctx.del == 0) {
 6200                         /* We clobbered the VXLAN entry if there was one. */
 6201                         pi->vxlan_tcam_entry = false;
 6202                 }
 6203         }
 6204 
 6205         if (IS_MAIN_VI(vi) && sc->vxlan_refcount > 0 &&
 6206             pi->vxlan_tcam_entry == false) {
 6207                 rc = t4_alloc_raw_mac_filt(sc, vi->viid, match_all_mac,
 6208                     match_all_mac, sc->rawf_base + pi->port_id, 1, pi->port_id,
 6209                     true);
 6210                 if (rc < 0) {
 6211                         rc = -rc;
 6212                         if_printf(ifp, "failed to add VXLAN TCAM entry: %d.\n",
 6213                             rc);
 6214                 } else {
 6215                         MPASS(rc == sc->rawf_base + pi->port_id);
 6216                         rc = 0;
 6217                         pi->vxlan_tcam_entry = true;
 6218                 }
 6219         }
 6220 
 6221         return (rc);
 6222 }
 6223 
 6224 /*
 6225  * {begin|end}_synchronized_op must be called from the same thread.
 6226  */
 6227 int
 6228 begin_synchronized_op(struct adapter *sc, struct vi_info *vi, int flags,
 6229     char *wmesg)
 6230 {
 6231         int rc, pri;
 6232 
 6233 #ifdef WITNESS
 6234         /* the caller thinks it's ok to sleep, but is it really? */
 6235         if (flags & SLEEP_OK)
 6236                 WITNESS_WARN(WARN_GIANTOK | WARN_SLEEPOK, NULL,
 6237                     "begin_synchronized_op");
 6238 #endif
 6239 
 6240         if (INTR_OK)
 6241                 pri = PCATCH;
 6242         else
 6243                 pri = 0;
 6244 
 6245         ADAPTER_LOCK(sc);
 6246         for (;;) {
 6247 
 6248                 if (vi && IS_DOOMED(vi)) {
 6249                         rc = ENXIO;
 6250                         goto done;
 6251                 }
 6252 
 6253                 if (!IS_BUSY(sc)) {
 6254                         rc = 0;
 6255                         break;
 6256                 }
 6257 
 6258                 if (!(flags & SLEEP_OK)) {
 6259                         rc = EBUSY;
 6260                         goto done;
 6261                 }
 6262 
 6263                 if (mtx_sleep(&sc->flags, &sc->sc_lock, pri, wmesg, 0)) {
 6264                         rc = EINTR;
 6265                         goto done;
 6266                 }
 6267         }
 6268 
 6269         KASSERT(!IS_BUSY(sc), ("%s: controller busy.", __func__));
 6270         SET_BUSY(sc);
 6271 #ifdef INVARIANTS
 6272         sc->last_op = wmesg;
 6273         sc->last_op_thr = curthread;
 6274         sc->last_op_flags = flags;
 6275 #endif
 6276 
 6277 done:
 6278         if (!(flags & HOLD_LOCK) || rc)
 6279                 ADAPTER_UNLOCK(sc);
 6280 
 6281         return (rc);
 6282 }
 6283 
 6284 /*
 6285  * Tell if_ioctl and if_init that the VI is going away.  This is
 6286  * special variant of begin_synchronized_op and must be paired with a
 6287  * call to end_synchronized_op.
 6288  */
 6289 void
 6290 doom_vi(struct adapter *sc, struct vi_info *vi)
 6291 {
 6292 
 6293         ADAPTER_LOCK(sc);
 6294         SET_DOOMED(vi);
 6295         wakeup(&sc->flags);
 6296         while (IS_BUSY(sc))
 6297                 mtx_sleep(&sc->flags, &sc->sc_lock, 0, "t4detach", 0);
 6298         SET_BUSY(sc);
 6299 #ifdef INVARIANTS
 6300         sc->last_op = "t4detach";
 6301         sc->last_op_thr = curthread;
 6302         sc->last_op_flags = 0;
 6303 #endif
 6304         ADAPTER_UNLOCK(sc);
 6305 }
 6306 
 6307 /*
 6308  * {begin|end}_synchronized_op must be called from the same thread.
 6309  */
 6310 void
 6311 end_synchronized_op(struct adapter *sc, int flags)
 6312 {
 6313 
 6314         if (flags & LOCK_HELD)
 6315                 ADAPTER_LOCK_ASSERT_OWNED(sc);
 6316         else
 6317                 ADAPTER_LOCK(sc);
 6318 
 6319         KASSERT(IS_BUSY(sc), ("%s: controller not busy.", __func__));
 6320         CLR_BUSY(sc);
 6321         wakeup(&sc->flags);
 6322         ADAPTER_UNLOCK(sc);
 6323 }
 6324 
 6325 static int
 6326 cxgbe_init_synchronized(struct vi_info *vi)
 6327 {
 6328         struct port_info *pi = vi->pi;
 6329         struct adapter *sc = pi->adapter;
 6330         struct ifnet *ifp = vi->ifp;
 6331         int rc = 0, i;
 6332         struct sge_txq *txq;
 6333 
 6334         ASSERT_SYNCHRONIZED_OP(sc);
 6335 
 6336         if (ifp->if_drv_flags & IFF_DRV_RUNNING)
 6337                 return (0);     /* already running */
 6338 
 6339         if (!(sc->flags & FULL_INIT_DONE) && ((rc = adapter_init(sc)) != 0))
 6340                 return (rc);    /* error message displayed already */
 6341 
 6342         if (!(vi->flags & VI_INIT_DONE) && ((rc = vi_init(vi)) != 0))
 6343                 return (rc); /* error message displayed already */
 6344 
 6345         rc = update_mac_settings(ifp, XGMAC_ALL);
 6346         if (rc)
 6347                 goto done;      /* error message displayed already */
 6348 
 6349         PORT_LOCK(pi);
 6350         if (pi->up_vis == 0) {
 6351                 t4_update_port_info(pi);
 6352                 fixup_link_config(pi);
 6353                 build_medialist(pi);
 6354                 apply_link_config(pi);
 6355         }
 6356 
 6357         rc = -t4_enable_vi(sc, sc->mbox, vi->viid, true, true);
 6358         if (rc != 0) {
 6359                 if_printf(ifp, "enable_vi failed: %d\n", rc);
 6360                 PORT_UNLOCK(pi);
 6361                 goto done;
 6362         }
 6363 
 6364         /*
 6365          * Can't fail from this point onwards.  Review cxgbe_uninit_synchronized
 6366          * if this changes.
 6367          */
 6368 
 6369         for_each_txq(vi, i, txq) {
 6370                 TXQ_LOCK(txq);
 6371                 txq->eq.flags |= EQ_ENABLED;
 6372                 TXQ_UNLOCK(txq);
 6373         }
 6374 
 6375         /*
 6376          * The first iq of the first port to come up is used for tracing.
 6377          */
 6378         if (sc->traceq < 0 && IS_MAIN_VI(vi)) {
 6379                 sc->traceq = sc->sge.rxq[vi->first_rxq].iq.abs_id;
 6380                 t4_write_reg(sc, is_t4(sc) ?  A_MPS_TRC_RSS_CONTROL :
 6381                     A_MPS_T5_TRC_RSS_CONTROL, V_RSSCONTROL(pi->tx_chan) |
 6382                     V_QUEUENUMBER(sc->traceq));
 6383                 pi->flags |= HAS_TRACEQ;
 6384         }
 6385 
 6386         /* all ok */
 6387         pi->up_vis++;
 6388         ifp->if_drv_flags |= IFF_DRV_RUNNING;
 6389         if (pi->link_cfg.link_ok)
 6390                 t4_os_link_changed(pi);
 6391         PORT_UNLOCK(pi);
 6392 
 6393         mtx_lock(&vi->tick_mtx);
 6394         if (ifp->if_get_counter == vi_get_counter)
 6395                 callout_reset(&vi->tick, hz, vi_tick, vi);
 6396         else
 6397                 callout_reset(&vi->tick, hz, cxgbe_tick, vi);
 6398         mtx_unlock(&vi->tick_mtx);
 6399 done:
 6400         if (rc != 0)
 6401                 cxgbe_uninit_synchronized(vi);
 6402 
 6403         return (rc);
 6404 }
 6405 
 6406 /*
 6407  * Idempotent.
 6408  */
 6409 static int
 6410 cxgbe_uninit_synchronized(struct vi_info *vi)
 6411 {
 6412         struct port_info *pi = vi->pi;
 6413         struct adapter *sc = pi->adapter;
 6414         struct ifnet *ifp = vi->ifp;
 6415         int rc, i;
 6416         struct sge_txq *txq;
 6417 
 6418         ASSERT_SYNCHRONIZED_OP(sc);
 6419 
 6420         if (!(vi->flags & VI_INIT_DONE)) {
 6421                 if (__predict_false(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
 6422                         KASSERT(0, ("uninited VI is running"));
 6423                         if_printf(ifp, "uninited VI with running ifnet.  "
 6424                             "vi->flags 0x%016lx, if_flags 0x%08x, "
 6425                             "if_drv_flags 0x%08x\n", vi->flags, ifp->if_flags,
 6426                             ifp->if_drv_flags);
 6427                 }
 6428                 return (0);
 6429         }
 6430 
 6431         /*
 6432          * Disable the VI so that all its data in either direction is discarded
 6433          * by the MPS.  Leave everything else (the queues, interrupts, and 1Hz
 6434          * tick) intact as the TP can deliver negative advice or data that it's
 6435          * holding in its RAM (for an offloaded connection) even after the VI is
 6436          * disabled.
 6437          */
 6438         rc = -t4_enable_vi(sc, sc->mbox, vi->viid, false, false);
 6439         if (rc) {
 6440                 if_printf(ifp, "disable_vi failed: %d\n", rc);
 6441                 return (rc);
 6442         }
 6443 
 6444         for_each_txq(vi, i, txq) {
 6445                 TXQ_LOCK(txq);
 6446                 txq->eq.flags &= ~EQ_ENABLED;
 6447                 TXQ_UNLOCK(txq);
 6448         }
 6449 
 6450         mtx_lock(&vi->tick_mtx);
 6451         callout_stop(&vi->tick);
 6452         mtx_unlock(&vi->tick_mtx);
 6453 
 6454         PORT_LOCK(pi);
 6455         if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
 6456                 PORT_UNLOCK(pi);
 6457                 return (0);
 6458         }
 6459         ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
 6460         pi->up_vis--;
 6461         if (pi->up_vis > 0) {
 6462                 PORT_UNLOCK(pi);
 6463                 return (0);
 6464         }
 6465 
 6466         pi->link_cfg.link_ok = false;
 6467         pi->link_cfg.speed = 0;
 6468         pi->link_cfg.link_down_rc = 255;
 6469         t4_os_link_changed(pi);
 6470         PORT_UNLOCK(pi);
 6471 
 6472         return (0);
 6473 }
 6474 
 6475 /*
 6476  * It is ok for this function to fail midway and return right away.  t4_detach
 6477  * will walk the entire sc->irq list and clean up whatever is valid.
 6478  */
 6479 int
 6480 t4_setup_intr_handlers(struct adapter *sc)
 6481 {
 6482         int rc, rid, p, q, v;
 6483         char s[8];
 6484         struct irq *irq;
 6485         struct port_info *pi;
 6486         struct vi_info *vi;
 6487         struct sge *sge = &sc->sge;
 6488         struct sge_rxq *rxq;
 6489 #ifdef TCP_OFFLOAD
 6490         struct sge_ofld_rxq *ofld_rxq;
 6491 #endif
 6492 #ifdef DEV_NETMAP
 6493         struct sge_nm_rxq *nm_rxq;
 6494 #endif
 6495 #ifdef RSS
 6496         int nbuckets = rss_getnumbuckets();
 6497 #endif
 6498 
 6499         /*
 6500          * Setup interrupts.
 6501          */
 6502         irq = &sc->irq[0];
 6503         rid = sc->intr_type == INTR_INTX ? 0 : 1;
 6504         if (forwarding_intr_to_fwq(sc))
 6505                 return (t4_alloc_irq(sc, irq, rid, t4_intr_all, sc, "all"));
 6506 
 6507         /* Multiple interrupts. */
 6508         if (sc->flags & IS_VF)
 6509                 KASSERT(sc->intr_count >= T4VF_EXTRA_INTR + sc->params.nports,
 6510                     ("%s: too few intr.", __func__));
 6511         else
 6512                 KASSERT(sc->intr_count >= T4_EXTRA_INTR + sc->params.nports,
 6513                     ("%s: too few intr.", __func__));
 6514 
 6515         /* The first one is always error intr on PFs */
 6516         if (!(sc->flags & IS_VF)) {
 6517                 rc = t4_alloc_irq(sc, irq, rid, t4_intr_err, sc, "err");
 6518                 if (rc != 0)
 6519                         return (rc);
 6520                 irq++;
 6521                 rid++;
 6522         }
 6523 
 6524         /* The second one is always the firmware event queue (first on VFs) */
 6525         rc = t4_alloc_irq(sc, irq, rid, t4_intr_evt, &sge->fwq, "evt");
 6526         if (rc != 0)
 6527                 return (rc);
 6528         irq++;
 6529         rid++;
 6530 
 6531         for_each_port(sc, p) {
 6532                 pi = sc->port[p];
 6533                 for_each_vi(pi, v, vi) {
 6534                         vi->first_intr = rid - 1;
 6535 
 6536                         if (vi->nnmrxq > 0) {
 6537                                 int n = max(vi->nrxq, vi->nnmrxq);
 6538 
 6539                                 rxq = &sge->rxq[vi->first_rxq];
 6540 #ifdef DEV_NETMAP
 6541                                 nm_rxq = &sge->nm_rxq[vi->first_nm_rxq];
 6542 #endif
 6543                                 for (q = 0; q < n; q++) {
 6544                                         snprintf(s, sizeof(s), "%x%c%x", p,
 6545                                             'a' + v, q);
 6546                                         if (q < vi->nrxq)
 6547                                                 irq->rxq = rxq++;
 6548 #ifdef DEV_NETMAP
 6549                                         if (q < vi->nnmrxq)
 6550                                                 irq->nm_rxq = nm_rxq++;
 6551 
 6552                                         if (irq->nm_rxq != NULL &&
 6553                                             irq->rxq == NULL) {
 6554                                                 /* Netmap rx only */
 6555                                                 rc = t4_alloc_irq(sc, irq, rid,
 6556                                                     t4_nm_intr, irq->nm_rxq, s);
 6557                                         }
 6558                                         if (irq->nm_rxq != NULL &&
 6559                                             irq->rxq != NULL) {
 6560                                                 /* NIC and Netmap rx */
 6561                                                 rc = t4_alloc_irq(sc, irq, rid,
 6562                                                     t4_vi_intr, irq, s);
 6563                                         }
 6564 #endif
 6565                                         if (irq->rxq != NULL &&
 6566                                             irq->nm_rxq == NULL) {
 6567                                                 /* NIC rx only */
 6568                                                 rc = t4_alloc_irq(sc, irq, rid,
 6569                                                     t4_intr, irq->rxq, s);
 6570                                         }
 6571                                         if (rc != 0)
 6572                                                 return (rc);
 6573 #ifdef RSS
 6574                                         if (q < vi->nrxq) {
 6575                                                 bus_bind_intr(sc->dev, irq->res,
 6576                                                     rss_getcpu(q % nbuckets));
 6577                                         }
 6578 #endif
 6579                                         irq++;
 6580                                         rid++;
 6581                                         vi->nintr++;
 6582                                 }
 6583                         } else {
 6584                                 for_each_rxq(vi, q, rxq) {
 6585                                         snprintf(s, sizeof(s), "%x%c%x", p,
 6586                                             'a' + v, q);
 6587                                         rc = t4_alloc_irq(sc, irq, rid,
 6588                                             t4_intr, rxq, s);
 6589                                         if (rc != 0)
 6590                                                 return (rc);
 6591 #ifdef RSS
 6592                                         bus_bind_intr(sc->dev, irq->res,
 6593                                             rss_getcpu(q % nbuckets));
 6594 #endif
 6595                                         irq++;
 6596                                         rid++;
 6597                                         vi->nintr++;
 6598                                 }
 6599                         }
 6600 #ifdef TCP_OFFLOAD
 6601                         for_each_ofld_rxq(vi, q, ofld_rxq) {
 6602                                 snprintf(s, sizeof(s), "%x%c%x", p, 'A' + v, q);
 6603                                 rc = t4_alloc_irq(sc, irq, rid, t4_intr,
 6604                                     ofld_rxq, s);
 6605                                 if (rc != 0)
 6606                                         return (rc);
 6607                                 irq++;
 6608                                 rid++;
 6609                                 vi->nintr++;
 6610                         }
 6611 #endif
 6612                 }
 6613         }
 6614         MPASS(irq == &sc->irq[sc->intr_count]);
 6615 
 6616         return (0);
 6617 }
 6618 
 6619 static void
 6620 write_global_rss_key(struct adapter *sc)
 6621 {
 6622 #ifdef RSS
 6623         int i;
 6624         uint32_t raw_rss_key[RSS_KEYSIZE / sizeof(uint32_t)];
 6625         uint32_t rss_key[RSS_KEYSIZE / sizeof(uint32_t)];
 6626 
 6627         CTASSERT(RSS_KEYSIZE == 40);
 6628 
 6629         rss_getkey((void *)&raw_rss_key[0]);
 6630         for (i = 0; i < nitems(rss_key); i++) {
 6631                 rss_key[i] = htobe32(raw_rss_key[nitems(rss_key) - 1 - i]);
 6632         }
 6633         t4_write_rss_key(sc, &rss_key[0], -1, 1);
 6634 #endif
 6635 }
 6636 
 6637 /*
 6638  * Idempotent.
 6639  */
 6640 static int
 6641 adapter_full_init(struct adapter *sc)
 6642 {
 6643         int rc, i;
 6644 
 6645         ASSERT_SYNCHRONIZED_OP(sc);
 6646 
 6647         /*
 6648          * queues that belong to the adapter (not any particular port).
 6649          */
 6650         rc = t4_setup_adapter_queues(sc);
 6651         if (rc != 0)
 6652                 return (rc);
 6653 
 6654         for (i = 0; i < nitems(sc->tq); i++) {
 6655                 if (sc->tq[i] != NULL)
 6656                         continue;
 6657                 sc->tq[i] = taskqueue_create("t4 taskq", M_NOWAIT,
 6658                     taskqueue_thread_enqueue, &sc->tq[i]);
 6659                 if (sc->tq[i] == NULL) {
 6660                         CH_ERR(sc, "failed to allocate task queue %d\n", i);
 6661                         return (ENOMEM);
 6662                 }
 6663                 taskqueue_start_threads(&sc->tq[i], 1, PI_NET, "%s tq%d",
 6664                     device_get_nameunit(sc->dev), i);
 6665         }
 6666 
 6667         if (!(sc->flags & IS_VF)) {
 6668                 write_global_rss_key(sc);
 6669                 t4_intr_enable(sc);
 6670         }
 6671         return (0);
 6672 }
 6673 
 6674 int
 6675 adapter_init(struct adapter *sc)
 6676 {
 6677         int rc;
 6678 
 6679         ASSERT_SYNCHRONIZED_OP(sc);
 6680         ADAPTER_LOCK_ASSERT_NOTOWNED(sc);
 6681         KASSERT((sc->flags & FULL_INIT_DONE) == 0,
 6682             ("%s: FULL_INIT_DONE already", __func__));
 6683 
 6684         rc = adapter_full_init(sc);
 6685         if (rc != 0)
 6686                 adapter_full_uninit(sc);
 6687         else
 6688                 sc->flags |= FULL_INIT_DONE;
 6689 
 6690         return (rc);
 6691 }
 6692 
 6693 /*
 6694  * Idempotent.
 6695  */
 6696 static void
 6697 adapter_full_uninit(struct adapter *sc)
 6698 {
 6699         int i;
 6700 
 6701         t4_teardown_adapter_queues(sc);
 6702 
 6703         for (i = 0; i < nitems(sc->tq) && sc->tq[i]; i++) {
 6704                 taskqueue_free(sc->tq[i]);
 6705                 sc->tq[i] = NULL;
 6706         }
 6707 
 6708         sc->flags &= ~FULL_INIT_DONE;
 6709 }
 6710 
 6711 #ifdef RSS
 6712 #define SUPPORTED_RSS_HASHTYPES (RSS_HASHTYPE_RSS_IPV4 | \
 6713     RSS_HASHTYPE_RSS_TCP_IPV4 | RSS_HASHTYPE_RSS_IPV6 | \
 6714     RSS_HASHTYPE_RSS_TCP_IPV6 | RSS_HASHTYPE_RSS_UDP_IPV4 | \
 6715     RSS_HASHTYPE_RSS_UDP_IPV6)
 6716 
 6717 /* Translates kernel hash types to hardware. */
 6718 static int
 6719 hashconfig_to_hashen(int hashconfig)
 6720 {
 6721         int hashen = 0;
 6722 
 6723         if (hashconfig & RSS_HASHTYPE_RSS_IPV4)
 6724                 hashen |= F_FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN;
 6725         if (hashconfig & RSS_HASHTYPE_RSS_IPV6)
 6726                 hashen |= F_FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN;
 6727         if (hashconfig & RSS_HASHTYPE_RSS_UDP_IPV4) {
 6728                 hashen |= F_FW_RSS_VI_CONFIG_CMD_UDPEN |
 6729                     F_FW_RSS_VI_CONFIG_CMD_IP4FOURTUPEN;
 6730         }
 6731         if (hashconfig & RSS_HASHTYPE_RSS_UDP_IPV6) {
 6732                 hashen |= F_FW_RSS_VI_CONFIG_CMD_UDPEN |
 6733                     F_FW_RSS_VI_CONFIG_CMD_IP6FOURTUPEN;
 6734         }
 6735         if (hashconfig & RSS_HASHTYPE_RSS_TCP_IPV4)
 6736                 hashen |= F_FW_RSS_VI_CONFIG_CMD_IP4FOURTUPEN;
 6737         if (hashconfig & RSS_HASHTYPE_RSS_TCP_IPV6)
 6738                 hashen |= F_FW_RSS_VI_CONFIG_CMD_IP6FOURTUPEN;
 6739 
 6740         return (hashen);
 6741 }
 6742 
 6743 /* Translates hardware hash types to kernel. */
 6744 static int
 6745 hashen_to_hashconfig(int hashen)
 6746 {
 6747         int hashconfig = 0;
 6748 
 6749         if (hashen & F_FW_RSS_VI_CONFIG_CMD_UDPEN) {
 6750                 /*
 6751                  * If UDP hashing was enabled it must have been enabled for
 6752                  * either IPv4 or IPv6 (inclusive or).  Enabling UDP without
 6753                  * enabling any 4-tuple hash is nonsense configuration.
 6754                  */
 6755                 MPASS(hashen & (F_FW_RSS_VI_CONFIG_CMD_IP4FOURTUPEN |
 6756                     F_FW_RSS_VI_CONFIG_CMD_IP6FOURTUPEN));
 6757 
 6758                 if (hashen & F_FW_RSS_VI_CONFIG_CMD_IP4FOURTUPEN)
 6759                         hashconfig |= RSS_HASHTYPE_RSS_UDP_IPV4;
 6760                 if (hashen & F_FW_RSS_VI_CONFIG_CMD_IP6FOURTUPEN)
 6761                         hashconfig |= RSS_HASHTYPE_RSS_UDP_IPV6;
 6762         }
 6763         if (hashen & F_FW_RSS_VI_CONFIG_CMD_IP4FOURTUPEN)
 6764                 hashconfig |= RSS_HASHTYPE_RSS_TCP_IPV4;
 6765         if (hashen & F_FW_RSS_VI_CONFIG_CMD_IP6FOURTUPEN)
 6766                 hashconfig |= RSS_HASHTYPE_RSS_TCP_IPV6;
 6767         if (hashen & F_FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN)
 6768                 hashconfig |= RSS_HASHTYPE_RSS_IPV4;
 6769         if (hashen & F_FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN)
 6770                 hashconfig |= RSS_HASHTYPE_RSS_IPV6;
 6771 
 6772         return (hashconfig);
 6773 }
 6774 #endif
 6775 
 6776 /*
 6777  * Idempotent.
 6778  */
 6779 static int
 6780 vi_full_init(struct vi_info *vi)
 6781 {
 6782         struct adapter *sc = vi->adapter;
 6783         struct sge_rxq *rxq;
 6784         int rc, i, j;
 6785 #ifdef RSS
 6786         int nbuckets = rss_getnumbuckets();
 6787         int hashconfig = rss_gethashconfig();
 6788         int extra;
 6789 #endif
 6790 
 6791         ASSERT_SYNCHRONIZED_OP(sc);
 6792 
 6793         /*
 6794          * Allocate tx/rx/fl queues for this VI.
 6795          */
 6796         rc = t4_setup_vi_queues(vi);
 6797         if (rc != 0)
 6798                 return (rc);
 6799 
 6800         /*
 6801          * Setup RSS for this VI.  Save a copy of the RSS table for later use.
 6802          */
 6803         if (vi->nrxq > vi->rss_size) {
 6804                 CH_ALERT(vi, "nrxq (%d) > hw RSS table size (%d); "
 6805                     "some queues will never receive traffic.\n", vi->nrxq,
 6806                     vi->rss_size);
 6807         } else if (vi->rss_size % vi->nrxq) {
 6808                 CH_ALERT(vi, "nrxq (%d), hw RSS table size (%d); "
 6809                     "expect uneven traffic distribution.\n", vi->nrxq,
 6810                     vi->rss_size);
 6811         }
 6812 #ifdef RSS
 6813         if (vi->nrxq != nbuckets) {
 6814                 CH_ALERT(vi, "nrxq (%d) != kernel RSS buckets (%d);"
 6815                     "performance will be impacted.\n", vi->nrxq, nbuckets);
 6816         }
 6817 #endif
 6818         if (vi->rss == NULL)
 6819                 vi->rss = malloc(vi->rss_size * sizeof (*vi->rss), M_CXGBE,
 6820                     M_ZERO | M_WAITOK);
 6821         for (i = 0; i < vi->rss_size;) {
 6822 #ifdef RSS
 6823                 j = rss_get_indirection_to_bucket(i);
 6824                 j %= vi->nrxq;
 6825                 rxq = &sc->sge.rxq[vi->first_rxq + j];
 6826                 vi->rss[i++] = rxq->iq.abs_id;
 6827 #else
 6828                 for_each_rxq(vi, j, rxq) {
 6829                         vi->rss[i++] = rxq->iq.abs_id;
 6830                         if (i == vi->rss_size)
 6831                                 break;
 6832                 }
 6833 #endif
 6834         }
 6835 
 6836         rc = -t4_config_rss_range(sc, sc->mbox, vi->viid, 0, vi->rss_size,
 6837             vi->rss, vi->rss_size);
 6838         if (rc != 0) {
 6839                 CH_ERR(vi, "rss_config failed: %d\n", rc);
 6840                 return (rc);
 6841         }
 6842 
 6843 #ifdef RSS
 6844         vi->hashen = hashconfig_to_hashen(hashconfig);
 6845 
 6846         /*
 6847          * We may have had to enable some hashes even though the global config
 6848          * wants them disabled.  This is a potential problem that must be
 6849          * reported to the user.
 6850          */
 6851         extra = hashen_to_hashconfig(vi->hashen) ^ hashconfig;
 6852 
 6853         /*
 6854          * If we consider only the supported hash types, then the enabled hashes
 6855          * are a superset of the requested hashes.  In other words, there cannot
 6856          * be any supported hash that was requested but not enabled, but there
 6857          * can be hashes that were not requested but had to be enabled.
 6858          */
 6859         extra &= SUPPORTED_RSS_HASHTYPES;
 6860         MPASS((extra & hashconfig) == 0);
 6861 
 6862         if (extra) {
 6863                 CH_ALERT(vi,
 6864                     "global RSS config (0x%x) cannot be accommodated.\n",
 6865                     hashconfig);
 6866         }
 6867         if (extra & RSS_HASHTYPE_RSS_IPV4)
 6868                 CH_ALERT(vi, "IPv4 2-tuple hashing forced on.\n");
 6869         if (extra & RSS_HASHTYPE_RSS_TCP_IPV4)
 6870                 CH_ALERT(vi, "TCP/IPv4 4-tuple hashing forced on.\n");
 6871         if (extra & RSS_HASHTYPE_RSS_IPV6)
 6872                 CH_ALERT(vi, "IPv6 2-tuple hashing forced on.\n");
 6873         if (extra & RSS_HASHTYPE_RSS_TCP_IPV6)
 6874                 CH_ALERT(vi, "TCP/IPv6 4-tuple hashing forced on.\n");
 6875         if (extra & RSS_HASHTYPE_RSS_UDP_IPV4)
 6876                 CH_ALERT(vi, "UDP/IPv4 4-tuple hashing forced on.\n");
 6877         if (extra & RSS_HASHTYPE_RSS_UDP_IPV6)
 6878                 CH_ALERT(vi, "UDP/IPv6 4-tuple hashing forced on.\n");
 6879 #else
 6880         vi->hashen = F_FW_RSS_VI_CONFIG_CMD_IP6FOURTUPEN |
 6881             F_FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN |
 6882             F_FW_RSS_VI_CONFIG_CMD_IP4FOURTUPEN |
 6883             F_FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN | F_FW_RSS_VI_CONFIG_CMD_UDPEN;
 6884 #endif
 6885         rc = -t4_config_vi_rss(sc, sc->mbox, vi->viid, vi->hashen, vi->rss[0],
 6886             0, 0);
 6887         if (rc != 0) {
 6888                 CH_ERR(vi, "rss hash/defaultq config failed: %d\n", rc);
 6889                 return (rc);
 6890         }
 6891 
 6892         return (0);
 6893 }
 6894 
 6895 int
 6896 vi_init(struct vi_info *vi)
 6897 {
 6898         int rc;
 6899 
 6900         ASSERT_SYNCHRONIZED_OP(vi->adapter);
 6901         KASSERT((vi->flags & VI_INIT_DONE) == 0,
 6902             ("%s: VI_INIT_DONE already", __func__));
 6903 
 6904         rc = vi_full_init(vi);
 6905         if (rc != 0)
 6906                 vi_full_uninit(vi);
 6907         else
 6908                 vi->flags |= VI_INIT_DONE;
 6909 
 6910         return (rc);
 6911 }
 6912 
 6913 /*
 6914  * Idempotent.
 6915  */
 6916 static void
 6917 vi_full_uninit(struct vi_info *vi)
 6918 {
 6919 
 6920         if (vi->flags & VI_INIT_DONE) {
 6921                 quiesce_vi(vi);
 6922                 free(vi->rss, M_CXGBE);
 6923                 free(vi->nm_rss, M_CXGBE);
 6924         }
 6925 
 6926         t4_teardown_vi_queues(vi);
 6927         vi->flags &= ~VI_INIT_DONE;
 6928 }
 6929 
 6930 static void
 6931 quiesce_txq(struct sge_txq *txq)
 6932 {
 6933         struct sge_eq *eq = &txq->eq;
 6934         struct sge_qstat *spg = (void *)&eq->desc[eq->sidx];
 6935 
 6936         MPASS(eq->flags & EQ_SW_ALLOCATED);
 6937         MPASS(!(eq->flags & EQ_ENABLED));
 6938 
 6939         /* Wait for the mp_ring to empty. */
 6940         while (!mp_ring_is_idle(txq->r)) {
 6941                 mp_ring_check_drainage(txq->r, 4096);
 6942                 pause("rquiesce", 1);
 6943         }
 6944         MPASS(txq->txp.npkt == 0);
 6945 
 6946         if (eq->flags & EQ_HW_ALLOCATED) {
 6947                 /*
 6948                  * Hardware is alive and working normally.  Wait for it to
 6949                  * finish and then wait for the driver to catch up and reclaim
 6950                  * all descriptors.
 6951                  */
 6952                 while (spg->cidx != htobe16(eq->pidx))
 6953                         pause("equiesce", 1);
 6954                 while (eq->cidx != eq->pidx)
 6955                         pause("dquiesce", 1);
 6956         } else {
 6957                 /*
 6958                  * Hardware is unavailable.  Discard all pending tx and reclaim
 6959                  * descriptors directly.
 6960                  */
 6961                 TXQ_LOCK(txq);
 6962                 while (eq->cidx != eq->pidx) {
 6963                         struct mbuf *m, *nextpkt;
 6964                         struct tx_sdesc *txsd;
 6965 
 6966                         txsd = &txq->sdesc[eq->cidx];
 6967                         for (m = txsd->m; m != NULL; m = nextpkt) {
 6968                                 nextpkt = m->m_nextpkt;
 6969                                 m->m_nextpkt = NULL;
 6970                                 m_freem(m);
 6971                         }
 6972                         IDXINCR(eq->cidx, txsd->desc_used, eq->sidx);
 6973                 }
 6974                 spg->pidx = spg->cidx = htobe16(eq->cidx);
 6975                 TXQ_UNLOCK(txq);
 6976         }
 6977 }
 6978 
 6979 static void
 6980 quiesce_wrq(struct sge_wrq *wrq)
 6981 {
 6982 
 6983         /* XXXTX */
 6984 }
 6985 
 6986 static void
 6987 quiesce_iq_fl(struct adapter *sc, struct sge_iq *iq, struct sge_fl *fl)
 6988 {
 6989         /* Synchronize with the interrupt handler */
 6990         while (!atomic_cmpset_int(&iq->state, IQS_IDLE, IQS_DISABLED))
 6991                 pause("iqfree", 1);
 6992 
 6993         if (fl != NULL) {
 6994                 MPASS(iq->flags & IQ_HAS_FL);
 6995 
 6996                 mtx_lock(&sc->sfl_lock);
 6997                 FL_LOCK(fl);
 6998                 fl->flags |= FL_DOOMED;
 6999                 FL_UNLOCK(fl);
 7000                 callout_stop(&sc->sfl_callout);
 7001                 mtx_unlock(&sc->sfl_lock);
 7002 
 7003                 KASSERT((fl->flags & FL_STARVING) == 0,
 7004                     ("%s: still starving", __func__));
 7005 
 7006                 /* Release all buffers if hardware is no longer available. */
 7007                 if (!(iq->flags & IQ_HW_ALLOCATED))
 7008                         free_fl_buffers(sc, fl);
 7009         }
 7010 }
 7011 
 7012 /*
 7013  * Wait for all activity on all the queues of the VI to complete.  It is assumed
 7014  * that no new work is being enqueued by the hardware or the driver.  That part
 7015  * should be arranged before calling this function.
 7016  */
 7017 static void
 7018 quiesce_vi(struct vi_info *vi)
 7019 {
 7020         int i;
 7021         struct adapter *sc = vi->adapter;
 7022         struct sge_rxq *rxq;
 7023         struct sge_txq *txq;
 7024 #ifdef TCP_OFFLOAD
 7025         struct sge_ofld_rxq *ofld_rxq;
 7026 #endif
 7027 #if defined(TCP_OFFLOAD) || defined(RATELIMIT)
 7028         struct sge_ofld_txq *ofld_txq;
 7029 #endif
 7030 
 7031         if (!(vi->flags & VI_INIT_DONE))
 7032                 return;
 7033 
 7034         for_each_txq(vi, i, txq) {
 7035                 quiesce_txq(txq);
 7036         }
 7037 
 7038 #if defined(TCP_OFFLOAD) || defined(RATELIMIT)
 7039         for_each_ofld_txq(vi, i, ofld_txq) {
 7040                 quiesce_wrq(&ofld_txq->wrq);
 7041         }
 7042 #endif
 7043 
 7044         for_each_rxq(vi, i, rxq) {
 7045                 quiesce_iq_fl(sc, &rxq->iq, &rxq->fl);
 7046         }
 7047 
 7048 #ifdef TCP_OFFLOAD
 7049         for_each_ofld_rxq(vi, i, ofld_rxq) {
 7050                 quiesce_iq_fl(sc, &ofld_rxq->iq, &ofld_rxq->fl);
 7051         }
 7052 #endif
 7053 }
 7054 
 7055 static int
 7056 t4_alloc_irq(struct adapter *sc, struct irq *irq, int rid,
 7057     driver_intr_t *handler, void *arg, char *name)
 7058 {
 7059         int rc;
 7060 
 7061         irq->rid = rid;
 7062         irq->res = bus_alloc_resource_any(sc->dev, SYS_RES_IRQ, &irq->rid,
 7063             RF_SHAREABLE | RF_ACTIVE);
 7064         if (irq->res == NULL) {
 7065                 device_printf(sc->dev,
 7066                     "failed to allocate IRQ for rid %d, name %s.\n", rid, name);
 7067                 return (ENOMEM);
 7068         }
 7069 
 7070         rc = bus_setup_intr(sc->dev, irq->res, INTR_MPSAFE | INTR_TYPE_NET,
 7071             NULL, handler, arg, &irq->tag);
 7072         if (rc != 0) {
 7073                 device_printf(sc->dev,
 7074                     "failed to setup interrupt for rid %d, name %s: %d\n",
 7075                     rid, name, rc);
 7076         } else if (name)
 7077                 bus_describe_intr(sc->dev, irq->res, irq->tag, "%s", name);
 7078 
 7079         return (rc);
 7080 }
 7081 
 7082 static int
 7083 t4_free_irq(struct adapter *sc, struct irq *irq)
 7084 {
 7085         if (irq->tag)
 7086                 bus_teardown_intr(sc->dev, irq->res, irq->tag);
 7087         if (irq->res)
 7088                 bus_release_resource(sc->dev, SYS_RES_IRQ, irq->rid, irq->res);
 7089 
 7090         bzero(irq, sizeof(*irq));
 7091 
 7092         return (0);
 7093 }
 7094 
 7095 static void
 7096 get_regs(struct adapter *sc, struct t4_regdump *regs, uint8_t *buf)
 7097 {
 7098 
 7099         regs->version = chip_id(sc) | chip_rev(sc) << 10;
 7100         t4_get_regs(sc, buf, regs->len);
 7101 }
 7102 
 7103 #define A_PL_INDIR_CMD  0x1f8
 7104 
 7105 #define S_PL_AUTOINC    31
 7106 #define M_PL_AUTOINC    0x1U
 7107 #define V_PL_AUTOINC(x) ((x) << S_PL_AUTOINC)
 7108 #define G_PL_AUTOINC(x) (((x) >> S_PL_AUTOINC) & M_PL_AUTOINC)
 7109 
 7110 #define S_PL_VFID       20
 7111 #define M_PL_VFID       0xffU
 7112 #define V_PL_VFID(x)    ((x) << S_PL_VFID)
 7113 #define G_PL_VFID(x)    (((x) >> S_PL_VFID) & M_PL_VFID)
 7114 
 7115 #define S_PL_ADDR       0
 7116 #define M_PL_ADDR       0xfffffU
 7117 #define V_PL_ADDR(x)    ((x) << S_PL_ADDR)
 7118 #define G_PL_ADDR(x)    (((x) >> S_PL_ADDR) & M_PL_ADDR)
 7119 
 7120 #define A_PL_INDIR_DATA 0x1fc
 7121 
 7122 static uint64_t
 7123 read_vf_stat(struct adapter *sc, u_int vin, int reg)
 7124 {
 7125         u32 stats[2];
 7126 
 7127         if (sc->flags & IS_VF) {
 7128                 stats[0] = t4_read_reg(sc, VF_MPS_REG(reg));
 7129                 stats[1] = t4_read_reg(sc, VF_MPS_REG(reg + 4));
 7130         } else {
 7131                 mtx_assert(&sc->reg_lock, MA_OWNED);
 7132                 t4_write_reg(sc, A_PL_INDIR_CMD, V_PL_AUTOINC(1) |
 7133                     V_PL_VFID(vin) | V_PL_ADDR(VF_MPS_REG(reg)));
 7134                 stats[0] = t4_read_reg(sc, A_PL_INDIR_DATA);
 7135                 stats[1] = t4_read_reg(sc, A_PL_INDIR_DATA);
 7136         }
 7137         return (((uint64_t)stats[1]) << 32 | stats[0]);
 7138 }
 7139 
 7140 static void
 7141 t4_get_vi_stats(struct adapter *sc, u_int vin, struct fw_vi_stats_vf *stats)
 7142 {
 7143 
 7144 #define GET_STAT(name) \
 7145         read_vf_stat(sc, vin, A_MPS_VF_STAT_##name##_L)
 7146 
 7147         if (!(sc->flags & IS_VF))
 7148                 mtx_lock(&sc->reg_lock);
 7149         stats->tx_bcast_bytes    = GET_STAT(TX_VF_BCAST_BYTES);
 7150         stats->tx_bcast_frames   = GET_STAT(TX_VF_BCAST_FRAMES);
 7151         stats->tx_mcast_bytes    = GET_STAT(TX_VF_MCAST_BYTES);
 7152         stats->tx_mcast_frames   = GET_STAT(TX_VF_MCAST_FRAMES);
 7153         stats->tx_ucast_bytes    = GET_STAT(TX_VF_UCAST_BYTES);
 7154         stats->tx_ucast_frames   = GET_STAT(TX_VF_UCAST_FRAMES);
 7155         stats->tx_drop_frames    = GET_STAT(TX_VF_DROP_FRAMES);
 7156         stats->tx_offload_bytes  = GET_STAT(TX_VF_OFFLOAD_BYTES);
 7157         stats->tx_offload_frames = GET_STAT(TX_VF_OFFLOAD_FRAMES);
 7158         stats->rx_bcast_bytes    = GET_STAT(RX_VF_BCAST_BYTES);
 7159         stats->rx_bcast_frames   = GET_STAT(RX_VF_BCAST_FRAMES);
 7160         stats->rx_mcast_bytes    = GET_STAT(RX_VF_MCAST_BYTES);
 7161         stats->rx_mcast_frames   = GET_STAT(RX_VF_MCAST_FRAMES);
 7162         stats->rx_ucast_bytes    = GET_STAT(RX_VF_UCAST_BYTES);
 7163         stats->rx_ucast_frames   = GET_STAT(RX_VF_UCAST_FRAMES);
 7164         stats->rx_err_frames     = GET_STAT(RX_VF_ERR_FRAMES);
 7165         if (!(sc->flags & IS_VF))
 7166                 mtx_unlock(&sc->reg_lock);
 7167 
 7168 #undef GET_STAT
 7169 }
 7170 
 7171 static void
 7172 t4_clr_vi_stats(struct adapter *sc, u_int vin)
 7173 {
 7174         int reg;
 7175 
 7176         t4_write_reg(sc, A_PL_INDIR_CMD, V_PL_AUTOINC(1) | V_PL_VFID(vin) |
 7177             V_PL_ADDR(VF_MPS_REG(A_MPS_VF_STAT_TX_VF_BCAST_BYTES_L)));
 7178         for (reg = A_MPS_VF_STAT_TX_VF_BCAST_BYTES_L;
 7179              reg <= A_MPS_VF_STAT_RX_VF_ERR_FRAMES_H; reg += 4)
 7180                 t4_write_reg(sc, A_PL_INDIR_DATA, 0);
 7181 }
 7182 
 7183 static void
 7184 vi_refresh_stats(struct vi_info *vi)
 7185 {
 7186         struct timeval tv;
 7187         const struct timeval interval = {0, 250000};    /* 250ms */
 7188 
 7189         mtx_assert(&vi->tick_mtx, MA_OWNED);
 7190 
 7191         if (vi->flags & VI_SKIP_STATS)
 7192                 return;
 7193 
 7194         getmicrotime(&tv);
 7195         timevalsub(&tv, &interval);
 7196         if (timevalcmp(&tv, &vi->last_refreshed, <))
 7197                 return;
 7198 
 7199         t4_get_vi_stats(vi->adapter, vi->vin, &vi->stats);
 7200         getmicrotime(&vi->last_refreshed);
 7201 }
 7202 
 7203 static void
 7204 cxgbe_refresh_stats(struct vi_info *vi)
 7205 {
 7206         u_int i, v, tnl_cong_drops, chan_map;
 7207         struct timeval tv;
 7208         const struct timeval interval = {0, 250000};    /* 250ms */
 7209         struct port_info *pi;
 7210         struct adapter *sc;
 7211 
 7212         mtx_assert(&vi->tick_mtx, MA_OWNED);
 7213 
 7214         if (vi->flags & VI_SKIP_STATS)
 7215                 return;
 7216 
 7217         getmicrotime(&tv);
 7218         timevalsub(&tv, &interval);
 7219         if (timevalcmp(&tv, &vi->last_refreshed, <))
 7220                 return;
 7221 
 7222         pi = vi->pi;
 7223         sc = vi->adapter;
 7224         tnl_cong_drops = 0;
 7225         t4_get_port_stats(sc, pi->port_id, &pi->stats);
 7226         chan_map = pi->rx_e_chan_map;
 7227         while (chan_map) {
 7228                 i = ffs(chan_map) - 1;
 7229                 mtx_lock(&sc->reg_lock);
 7230                 t4_read_indirect(sc, A_TP_MIB_INDEX, A_TP_MIB_DATA, &v, 1,
 7231                     A_TP_MIB_TNL_CNG_DROP_0 + i);
 7232                 mtx_unlock(&sc->reg_lock);
 7233                 tnl_cong_drops += v;
 7234                 chan_map &= ~(1 << i);
 7235         }
 7236         pi->tnl_cong_drops = tnl_cong_drops;
 7237         getmicrotime(&vi->last_refreshed);
 7238 }
 7239 
 7240 static void
 7241 cxgbe_tick(void *arg)
 7242 {
 7243         struct vi_info *vi = arg;
 7244 
 7245         MPASS(IS_MAIN_VI(vi));
 7246         mtx_assert(&vi->tick_mtx, MA_OWNED);
 7247 
 7248         cxgbe_refresh_stats(vi);
 7249         callout_schedule(&vi->tick, hz);
 7250 }
 7251 
 7252 static void
 7253 vi_tick(void *arg)
 7254 {
 7255         struct vi_info *vi = arg;
 7256 
 7257         mtx_assert(&vi->tick_mtx, MA_OWNED);
 7258 
 7259         vi_refresh_stats(vi);
 7260         callout_schedule(&vi->tick, hz);
 7261 }
 7262 
 7263 /*
 7264  * Should match fw_caps_config_<foo> enums in t4fw_interface.h
 7265  */
 7266 static char *caps_decoder[] = {
 7267         "\2\001IPMI\002NCSI",                          /* 0: NBM */
 7268         "\2\001PPP\002QFC\003DCBX",                    /* 1: link */
 7269         "\2\001INGRESS\002EGRESS",                     /* 2: switch */
 7270         "\2\001NIC\002VM\003IDS\004UM\005UM_ISGL"      /* 3: NIC */
 7271             "\006HASHFILTER\007ETHOFLD",
 7272         "\2\001TOE",                                   /* 4: TOE */
 7273         "\2\001RDDP\002RDMAC",                         /* 5: RDMA */
 7274         "\2\001INITIATOR_PDU\002TARGET_PDU"            /* 6: iSCSI */
 7275             "\003INITIATOR_CNXOFLD\004TARGET_CNXOFLD"
 7276             "\005INITIATOR_SSNOFLD\006TARGET_SSNOFLD"
 7277             "\007T10DIF"
 7278             "\010INITIATOR_CMDOFLD\011TARGET_CMDOFLD",
 7279         "\2\001LOOKASIDE\002TLSKEYS\003IPSEC_INLINE"   /* 7: Crypto */
 7280             "\004TLS_HW",
 7281         "\2\001INITIATOR\002TARGET\003CTRL_OFLD"       /* 8: FCoE */
 7282                     "\004PO_INITIATOR\005PO_TARGET",
 7283 };
 7284 
 7285 void
 7286 t4_sysctls(struct adapter *sc)
 7287 {
 7288         struct sysctl_ctx_list *ctx = &sc->ctx;
 7289         struct sysctl_oid *oid;
 7290         struct sysctl_oid_list *children, *c0;
 7291         static char *doorbells = {"\2\1UDB\2WCWR\3UDBWC\4KDB"};
 7292 
 7293         /*
 7294          * dev.t4nex.X.
 7295          */
 7296         oid = device_get_sysctl_tree(sc->dev);
 7297         c0 = children = SYSCTL_CHILDREN(oid);
 7298 
 7299         sc->sc_do_rxcopy = 1;
 7300         SYSCTL_ADD_INT(ctx, children, OID_AUTO, "do_rx_copy", CTLFLAG_RW,
 7301             &sc->sc_do_rxcopy, 1, "Do RX copy of small frames");
 7302 
 7303         SYSCTL_ADD_INT(ctx, children, OID_AUTO, "nports", CTLFLAG_RD, NULL,
 7304             sc->params.nports, "# of ports");
 7305 
 7306         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "doorbells",
 7307             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, doorbells,
 7308             (uintptr_t)&sc->doorbells, sysctl_bitfield_8b, "A",
 7309             "available doorbells");
 7310 
 7311         SYSCTL_ADD_INT(ctx, children, OID_AUTO, "core_clock", CTLFLAG_RD, NULL,
 7312             sc->params.vpd.cclk, "core clock frequency (in KHz)");
 7313 
 7314         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "holdoff_timers",
 7315             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE,
 7316             sc->params.sge.timer_val, sizeof(sc->params.sge.timer_val),
 7317             sysctl_int_array, "A", "interrupt holdoff timer values (us)");
 7318 
 7319         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "holdoff_pkt_counts",
 7320             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE,
 7321             sc->params.sge.counter_val, sizeof(sc->params.sge.counter_val),
 7322             sysctl_int_array, "A", "interrupt holdoff packet counter values");
 7323 
 7324         t4_sge_sysctls(sc, ctx, children);
 7325 
 7326         sc->lro_timeout = 100;
 7327         SYSCTL_ADD_INT(ctx, children, OID_AUTO, "lro_timeout", CTLFLAG_RW,
 7328             &sc->lro_timeout, 0, "lro inactive-flush timeout (in us)");
 7329 
 7330         SYSCTL_ADD_INT(ctx, children, OID_AUTO, "dflags", CTLFLAG_RW,
 7331             &sc->debug_flags, 0, "flags to enable runtime debugging");
 7332 
 7333         SYSCTL_ADD_STRING(ctx, children, OID_AUTO, "tp_version",
 7334             CTLFLAG_RD, sc->tp_version, 0, "TP microcode version");
 7335 
 7336         SYSCTL_ADD_STRING(ctx, children, OID_AUTO, "firmware_version",
 7337             CTLFLAG_RD, sc->fw_version, 0, "firmware version");
 7338 
 7339         if (sc->flags & IS_VF)
 7340                 return;
 7341 
 7342         SYSCTL_ADD_INT(ctx, children, OID_AUTO, "hw_revision", CTLFLAG_RD,
 7343             NULL, chip_rev(sc), "chip hardware revision");
 7344 
 7345         SYSCTL_ADD_STRING(ctx, children, OID_AUTO, "sn",
 7346             CTLFLAG_RD, sc->params.vpd.sn, 0, "serial number");
 7347 
 7348         SYSCTL_ADD_STRING(ctx, children, OID_AUTO, "pn",
 7349             CTLFLAG_RD, sc->params.vpd.pn, 0, "part number");
 7350 
 7351         SYSCTL_ADD_STRING(ctx, children, OID_AUTO, "ec",
 7352             CTLFLAG_RD, sc->params.vpd.ec, 0, "engineering change");
 7353 
 7354         SYSCTL_ADD_STRING(ctx, children, OID_AUTO, "md_version",
 7355             CTLFLAG_RD, sc->params.vpd.md, 0, "manufacturing diags version");
 7356 
 7357         SYSCTL_ADD_STRING(ctx, children, OID_AUTO, "na",
 7358             CTLFLAG_RD, sc->params.vpd.na, 0, "network address");
 7359 
 7360         SYSCTL_ADD_STRING(ctx, children, OID_AUTO, "er_version", CTLFLAG_RD,
 7361             sc->er_version, 0, "expansion ROM version");
 7362 
 7363         SYSCTL_ADD_STRING(ctx, children, OID_AUTO, "bs_version", CTLFLAG_RD,
 7364             sc->bs_version, 0, "bootstrap firmware version");
 7365 
 7366         SYSCTL_ADD_UINT(ctx, children, OID_AUTO, "scfg_version", CTLFLAG_RD,
 7367             NULL, sc->params.scfg_vers, "serial config version");
 7368 
 7369         SYSCTL_ADD_UINT(ctx, children, OID_AUTO, "vpd_version", CTLFLAG_RD,
 7370             NULL, sc->params.vpd_vers, "VPD version");
 7371 
 7372         SYSCTL_ADD_STRING(ctx, children, OID_AUTO, "cf",
 7373             CTLFLAG_RD, sc->cfg_file, 0, "configuration file");
 7374 
 7375         SYSCTL_ADD_UINT(ctx, children, OID_AUTO, "cfcsum", CTLFLAG_RD, NULL,
 7376             sc->cfcsum, "config file checksum");
 7377 
 7378 #define SYSCTL_CAP(name, n, text) \
 7379         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, #name, \
 7380             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, caps_decoder[n], \
 7381             (uintptr_t)&sc->name, sysctl_bitfield_16b, "A", \
 7382             "available " text " capabilities")
 7383 
 7384         SYSCTL_CAP(nbmcaps, 0, "NBM");
 7385         SYSCTL_CAP(linkcaps, 1, "link");
 7386         SYSCTL_CAP(switchcaps, 2, "switch");
 7387         SYSCTL_CAP(niccaps, 3, "NIC");
 7388         SYSCTL_CAP(toecaps, 4, "TCP offload");
 7389         SYSCTL_CAP(rdmacaps, 5, "RDMA");
 7390         SYSCTL_CAP(iscsicaps, 6, "iSCSI");
 7391         SYSCTL_CAP(cryptocaps, 7, "crypto");
 7392         SYSCTL_CAP(fcoecaps, 8, "FCoE");
 7393 #undef SYSCTL_CAP
 7394 
 7395         SYSCTL_ADD_INT(ctx, children, OID_AUTO, "nfilters", CTLFLAG_RD,
 7396             NULL, sc->tids.nftids, "number of filters");
 7397 
 7398         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "temperature",
 7399             CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 0,
 7400             sysctl_temperature, "I", "chip temperature (in Celsius)");
 7401         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "reset_sensor",
 7402             CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, sc, 0,
 7403             sysctl_reset_sensor, "I", "reset the chip's temperature sensor.");
 7404 
 7405         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "loadavg",
 7406             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 0,
 7407             sysctl_loadavg, "A",
 7408             "microprocessor load averages (debug firmwares only)");
 7409 
 7410         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "core_vdd",
 7411             CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 0, sysctl_vdd,
 7412             "I", "core Vdd (in mV)");
 7413 
 7414         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "local_cpus",
 7415             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, LOCAL_CPUS,
 7416             sysctl_cpus, "A", "local CPUs");
 7417 
 7418         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "intr_cpus",
 7419             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, INTR_CPUS,
 7420             sysctl_cpus, "A", "preferred CPUs for interrupts");
 7421 
 7422         SYSCTL_ADD_INT(ctx, children, OID_AUTO, "swintr", CTLFLAG_RW,
 7423             &sc->swintr, 0, "software triggered interrupts");
 7424 
 7425         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "reset",
 7426             CTLTYPE_INT | CTLFLAG_RW, sc, 0, sysctl_reset, "I",
 7427             "1 = reset adapter, 0 = zero reset counter");
 7428 
 7429         /*
 7430          * dev.t4nex.X.misc.  Marked CTLFLAG_SKIP to avoid information overload.
 7431          */
 7432         oid = SYSCTL_ADD_NODE(ctx, c0, OID_AUTO, "misc",
 7433             CTLFLAG_RD | CTLFLAG_SKIP | CTLFLAG_MPSAFE, NULL,
 7434             "logs and miscellaneous information");
 7435         children = SYSCTL_CHILDREN(oid);
 7436 
 7437         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cctrl",
 7438             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 0,
 7439             sysctl_cctrl, "A", "congestion control");
 7440 
 7441         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cim_ibq_tp0",
 7442             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 0,
 7443             sysctl_cim_ibq_obq, "A", "CIM IBQ 0 (TP0)");
 7444 
 7445         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cim_ibq_tp1",
 7446             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 1,
 7447             sysctl_cim_ibq_obq, "A", "CIM IBQ 1 (TP1)");
 7448 
 7449         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cim_ibq_ulp",
 7450             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 2,
 7451             sysctl_cim_ibq_obq, "A", "CIM IBQ 2 (ULP)");
 7452 
 7453         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cim_ibq_sge0",
 7454             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 3,
 7455             sysctl_cim_ibq_obq, "A", "CIM IBQ 3 (SGE0)");
 7456 
 7457         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cim_ibq_sge1",
 7458             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 4,
 7459             sysctl_cim_ibq_obq, "A", "CIM IBQ 4 (SGE1)");
 7460 
 7461         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cim_ibq_ncsi",
 7462             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 5,
 7463             sysctl_cim_ibq_obq, "A", "CIM IBQ 5 (NCSI)");
 7464 
 7465         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cim_la",
 7466             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 0,
 7467             sysctl_cim_la, "A", "CIM logic analyzer");
 7468 
 7469         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cim_ma_la",
 7470             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 0,
 7471             sysctl_cim_ma_la, "A", "CIM MA logic analyzer");
 7472 
 7473         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cim_obq_ulp0",
 7474             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc,
 7475             0 + CIM_NUM_IBQ, sysctl_cim_ibq_obq, "A", "CIM OBQ 0 (ULP0)");
 7476 
 7477         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cim_obq_ulp1",
 7478             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc,
 7479             1 + CIM_NUM_IBQ, sysctl_cim_ibq_obq, "A", "CIM OBQ 1 (ULP1)");
 7480 
 7481         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cim_obq_ulp2",
 7482             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc,
 7483             2 + CIM_NUM_IBQ, sysctl_cim_ibq_obq, "A", "CIM OBQ 2 (ULP2)");
 7484 
 7485         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cim_obq_ulp3",
 7486             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc,
 7487             3 + CIM_NUM_IBQ, sysctl_cim_ibq_obq, "A", "CIM OBQ 3 (ULP3)");
 7488 
 7489         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cim_obq_sge",
 7490             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc,
 7491             4 + CIM_NUM_IBQ, sysctl_cim_ibq_obq, "A", "CIM OBQ 4 (SGE)");
 7492 
 7493         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cim_obq_ncsi",
 7494             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc,
 7495             5 + CIM_NUM_IBQ, sysctl_cim_ibq_obq, "A", "CIM OBQ 5 (NCSI)");
 7496 
 7497         if (chip_id(sc) > CHELSIO_T4) {
 7498                 SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cim_obq_sge0_rx",
 7499                     CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc,
 7500                     6 + CIM_NUM_IBQ, sysctl_cim_ibq_obq, "A",
 7501                     "CIM OBQ 6 (SGE0-RX)");
 7502 
 7503                 SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cim_obq_sge1_rx",
 7504                     CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc,
 7505                     7 + CIM_NUM_IBQ, sysctl_cim_ibq_obq, "A",
 7506                     "CIM OBQ 7 (SGE1-RX)");
 7507         }
 7508 
 7509         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cim_pif_la",
 7510             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 0,
 7511             sysctl_cim_pif_la, "A", "CIM PIF logic analyzer");
 7512 
 7513         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cim_qcfg",
 7514             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 0,
 7515             sysctl_cim_qcfg, "A", "CIM queue configuration");
 7516 
 7517         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "cpl_stats",
 7518             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 0,
 7519             sysctl_cpl_stats, "A", "CPL statistics");
 7520 
 7521         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "ddp_stats",
 7522             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 0,
 7523             sysctl_ddp_stats, "A", "non-TCP DDP statistics");
 7524 
 7525         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "tid_stats",
 7526             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 0,
 7527             sysctl_tid_stats, "A", "tid stats");
 7528 
 7529         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "devlog",
 7530             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 0,
 7531             sysctl_devlog, "A", "firmware's device log");
 7532 
 7533         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "fcoe_stats",
 7534             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 0,
 7535             sysctl_fcoe_stats, "A", "FCoE statistics");
 7536 
 7537         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "hw_sched",
 7538             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 0,
 7539             sysctl_hw_sched, "A", "hardware scheduler ");
 7540 
 7541         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "l2t",
 7542             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 0,
 7543             sysctl_l2t, "A", "hardware L2 table");
 7544 
 7545         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "smt",
 7546             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 0,
 7547             sysctl_smt, "A", "hardware source MAC table");
 7548 
 7549 #ifdef INET6
 7550         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "clip",
 7551             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 0,
 7552             sysctl_clip, "A", "active CLIP table entries");
 7553 #endif
 7554 
 7555         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "lb_stats",
 7556             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 0,
 7557             sysctl_lb_stats, "A", "loopback statistics");
 7558 
 7559         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "meminfo",
 7560             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 0,
 7561             sysctl_meminfo, "A", "memory regions");
 7562 
 7563         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "mps_tcam",
 7564             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 0,
 7565             chip_id(sc) <= CHELSIO_T5 ? sysctl_mps_tcam : sysctl_mps_tcam_t6,
 7566             "A", "MPS TCAM entries");
 7567 
 7568         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "path_mtus",
 7569             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 0,
 7570             sysctl_path_mtus, "A", "path MTUs");
 7571 
 7572         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "pm_stats",
 7573             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 0,
 7574             sysctl_pm_stats, "A", "PM statistics");
 7575 
 7576         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "rdma_stats",
 7577             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 0,
 7578             sysctl_rdma_stats, "A", "RDMA statistics");
 7579 
 7580         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "tcp_stats",
 7581             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 0,
 7582             sysctl_tcp_stats, "A", "TCP statistics");
 7583 
 7584         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "tids",
 7585             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 0,
 7586             sysctl_tids, "A", "TID information");
 7587 
 7588         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "tp_err_stats",
 7589             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 0,
 7590             sysctl_tp_err_stats, "A", "TP error statistics");
 7591 
 7592         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "tnl_stats",
 7593             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 0,
 7594             sysctl_tnl_stats, "A", "TP tunnel statistics");
 7595 
 7596         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "tp_la_mask",
 7597             CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, sc, 0,
 7598             sysctl_tp_la_mask, "I", "TP logic analyzer event capture mask");
 7599 
 7600         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "tp_la",
 7601             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 0,
 7602             sysctl_tp_la, "A", "TP logic analyzer");
 7603 
 7604         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "tx_rate",
 7605             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 0,
 7606             sysctl_tx_rate, "A", "Tx rate");
 7607 
 7608         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "ulprx_la",
 7609             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 0,
 7610             sysctl_ulprx_la, "A", "ULPRX logic analyzer");
 7611 
 7612         if (chip_id(sc) >= CHELSIO_T5) {
 7613                 SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "wcwr_stats",
 7614                     CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 0,
 7615                     sysctl_wcwr_stats, "A", "write combined work requests");
 7616         }
 7617 
 7618 #ifdef KERN_TLS
 7619         if (is_ktls(sc)) {
 7620                 /*
 7621                  * dev.t4nex.0.tls.
 7622                  */
 7623                 oid = SYSCTL_ADD_NODE(ctx, c0, OID_AUTO, "tls",
 7624                     CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "KERN_TLS parameters");
 7625                 children = SYSCTL_CHILDREN(oid);
 7626 
 7627                 SYSCTL_ADD_INT(ctx, children, OID_AUTO, "inline_keys",
 7628                     CTLFLAG_RW, &sc->tlst.inline_keys, 0, "Always pass TLS "
 7629                     "keys in work requests (1) or attempt to store TLS keys "
 7630                     "in card memory.");
 7631 
 7632                 if (is_t6(sc))
 7633                         SYSCTL_ADD_INT(ctx, children, OID_AUTO, "combo_wrs",
 7634                             CTLFLAG_RW, &sc->tlst.combo_wrs, 0, "Attempt to "
 7635                             "combine TCB field updates with TLS record work "
 7636                             "requests.");
 7637         }
 7638 #endif
 7639 
 7640 #ifdef TCP_OFFLOAD
 7641         if (is_offload(sc)) {
 7642                 int i;
 7643                 char s[4];
 7644 
 7645                 /*
 7646                  * dev.t4nex.X.toe.
 7647                  */
 7648                 oid = SYSCTL_ADD_NODE(ctx, c0, OID_AUTO, "toe",
 7649                     CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "TOE parameters");
 7650                 children = SYSCTL_CHILDREN(oid);
 7651 
 7652                 sc->tt.cong_algorithm = -1;
 7653                 SYSCTL_ADD_INT(ctx, children, OID_AUTO, "cong_algorithm",
 7654                     CTLFLAG_RW, &sc->tt.cong_algorithm, 0, "congestion control "
 7655                     "(-1 = default, 0 = reno, 1 = tahoe, 2 = newreno, "
 7656                     "3 = highspeed)");
 7657 
 7658                 sc->tt.sndbuf = -1;
 7659                 SYSCTL_ADD_INT(ctx, children, OID_AUTO, "sndbuf", CTLFLAG_RW,
 7660                     &sc->tt.sndbuf, 0, "hardware send buffer");
 7661 
 7662                 sc->tt.ddp = 0;
 7663                 SYSCTL_ADD_INT(ctx, children, OID_AUTO, "ddp",
 7664                     CTLFLAG_RW | CTLFLAG_SKIP, &sc->tt.ddp, 0, "");
 7665                 SYSCTL_ADD_INT(ctx, children, OID_AUTO, "rx_zcopy", CTLFLAG_RW,
 7666                     &sc->tt.ddp, 0, "Enable zero-copy aio_read(2)");
 7667 
 7668                 sc->tt.rx_coalesce = -1;
 7669                 SYSCTL_ADD_INT(ctx, children, OID_AUTO, "rx_coalesce",
 7670                     CTLFLAG_RW, &sc->tt.rx_coalesce, 0, "receive coalescing");
 7671 
 7672                 sc->tt.tls = 0;
 7673                 SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "tls", CTLTYPE_INT |
 7674                     CTLFLAG_RW | CTLFLAG_MPSAFE, sc, 0, sysctl_tls, "I",
 7675                     "Inline TLS allowed");
 7676 
 7677                 sc->tt.tx_align = -1;
 7678                 SYSCTL_ADD_INT(ctx, children, OID_AUTO, "tx_align",
 7679                     CTLFLAG_RW, &sc->tt.tx_align, 0, "chop and align payload");
 7680 
 7681                 sc->tt.tx_zcopy = 0;
 7682                 SYSCTL_ADD_INT(ctx, children, OID_AUTO, "tx_zcopy",
 7683                     CTLFLAG_RW, &sc->tt.tx_zcopy, 0,
 7684                     "Enable zero-copy aio_write(2)");
 7685 
 7686                 sc->tt.cop_managed_offloading = !!t4_cop_managed_offloading;
 7687                 SYSCTL_ADD_INT(ctx, children, OID_AUTO,
 7688                     "cop_managed_offloading", CTLFLAG_RW,
 7689                     &sc->tt.cop_managed_offloading, 0,
 7690                     "COP (Connection Offload Policy) controls all TOE offload");
 7691 
 7692                 sc->tt.autorcvbuf_inc = 16 * 1024;
 7693                 SYSCTL_ADD_INT(ctx, children, OID_AUTO, "autorcvbuf_inc",
 7694                     CTLFLAG_RW, &sc->tt.autorcvbuf_inc, 0,
 7695                     "autorcvbuf increment");
 7696 
 7697                 sc->tt.update_hc_on_pmtu_change = 1;
 7698                 SYSCTL_ADD_INT(ctx, children, OID_AUTO,
 7699                     "update_hc_on_pmtu_change", CTLFLAG_RW,
 7700                     &sc->tt.update_hc_on_pmtu_change, 0,
 7701                     "Update hostcache entry if the PMTU changes");
 7702 
 7703                 sc->tt.iso = 1;
 7704                 SYSCTL_ADD_INT(ctx, children, OID_AUTO, "iso", CTLFLAG_RW,
 7705                     &sc->tt.iso, 0, "Enable iSCSI segmentation offload");
 7706 
 7707                 SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "timer_tick",
 7708                     CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 0,
 7709                     sysctl_tp_tick, "A", "TP timer tick (us)");
 7710 
 7711                 SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "timestamp_tick",
 7712                     CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 1,
 7713                     sysctl_tp_tick, "A", "TCP timestamp tick (us)");
 7714 
 7715                 SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "dack_tick",
 7716                     CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 2,
 7717                     sysctl_tp_tick, "A", "DACK tick (us)");
 7718 
 7719                 SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "dack_timer",
 7720                     CTLTYPE_UINT | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 0,
 7721                     sysctl_tp_dack_timer, "IU", "DACK timer (us)");
 7722 
 7723                 SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "rexmt_min",
 7724                     CTLTYPE_ULONG | CTLFLAG_RD | CTLFLAG_MPSAFE, sc,
 7725                     A_TP_RXT_MIN, sysctl_tp_timer, "LU",
 7726                     "Minimum retransmit interval (us)");
 7727 
 7728                 SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "rexmt_max",
 7729                     CTLTYPE_ULONG | CTLFLAG_RD | CTLFLAG_MPSAFE, sc,
 7730                     A_TP_RXT_MAX, sysctl_tp_timer, "LU",
 7731                     "Maximum retransmit interval (us)");
 7732 
 7733                 SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "persist_min",
 7734                     CTLTYPE_ULONG | CTLFLAG_RD | CTLFLAG_MPSAFE, sc,
 7735                     A_TP_PERS_MIN, sysctl_tp_timer, "LU",
 7736                     "Persist timer min (us)");
 7737 
 7738                 SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "persist_max",
 7739                     CTLTYPE_ULONG | CTLFLAG_RD | CTLFLAG_MPSAFE, sc,
 7740                     A_TP_PERS_MAX, sysctl_tp_timer, "LU",
 7741                     "Persist timer max (us)");
 7742 
 7743                 SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "keepalive_idle",
 7744                     CTLTYPE_ULONG | CTLFLAG_RD | CTLFLAG_MPSAFE, sc,
 7745                     A_TP_KEEP_IDLE, sysctl_tp_timer, "LU",
 7746                     "Keepalive idle timer (us)");
 7747 
 7748                 SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "keepalive_interval",
 7749                     CTLTYPE_ULONG | CTLFLAG_RD | CTLFLAG_MPSAFE, sc,
 7750                     A_TP_KEEP_INTVL, sysctl_tp_timer, "LU",
 7751                     "Keepalive interval timer (us)");
 7752 
 7753                 SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "initial_srtt",
 7754                     CTLTYPE_ULONG | CTLFLAG_RD | CTLFLAG_MPSAFE, sc,
 7755                     A_TP_INIT_SRTT, sysctl_tp_timer, "LU", "Initial SRTT (us)");
 7756 
 7757                 SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "finwait2_timer",
 7758                     CTLTYPE_ULONG | CTLFLAG_RD | CTLFLAG_MPSAFE, sc,
 7759                     A_TP_FINWAIT2_TIMER, sysctl_tp_timer, "LU",
 7760                     "FINWAIT2 timer (us)");
 7761 
 7762                 SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "syn_rexmt_count",
 7763                     CTLTYPE_UINT | CTLFLAG_RD | CTLFLAG_MPSAFE, sc,
 7764                     S_SYNSHIFTMAX, sysctl_tp_shift_cnt, "IU",
 7765                     "Number of SYN retransmissions before abort");
 7766 
 7767                 SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "rexmt_count",
 7768                     CTLTYPE_UINT | CTLFLAG_RD | CTLFLAG_MPSAFE, sc,
 7769                     S_RXTSHIFTMAXR2, sysctl_tp_shift_cnt, "IU",
 7770                     "Number of retransmissions before abort");
 7771 
 7772                 SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "keepalive_count",
 7773                     CTLTYPE_UINT | CTLFLAG_RD | CTLFLAG_MPSAFE, sc,
 7774                     S_KEEPALIVEMAXR2, sysctl_tp_shift_cnt, "IU",
 7775                     "Number of keepalive probes before abort");
 7776 
 7777                 oid = SYSCTL_ADD_NODE(ctx, children, OID_AUTO, "rexmt_backoff",
 7778                     CTLFLAG_RD | CTLFLAG_MPSAFE, NULL,
 7779                     "TOE retransmit backoffs");
 7780                 children = SYSCTL_CHILDREN(oid);
 7781                 for (i = 0; i < 16; i++) {
 7782                         snprintf(s, sizeof(s), "%u", i);
 7783                         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, s,
 7784                             CTLTYPE_UINT | CTLFLAG_RD | CTLFLAG_MPSAFE, sc,
 7785                             i, sysctl_tp_backoff, "IU",
 7786                             "TOE retransmit backoff");
 7787                 }
 7788         }
 7789 #endif
 7790 }
 7791 
 7792 void
 7793 vi_sysctls(struct vi_info *vi)
 7794 {
 7795         struct sysctl_ctx_list *ctx = &vi->ctx;
 7796         struct sysctl_oid *oid;
 7797         struct sysctl_oid_list *children;
 7798 
 7799         /*
 7800          * dev.v?(cxgbe|cxl).X.
 7801          */
 7802         oid = device_get_sysctl_tree(vi->dev);
 7803         children = SYSCTL_CHILDREN(oid);
 7804 
 7805         SYSCTL_ADD_UINT(ctx, children, OID_AUTO, "viid", CTLFLAG_RD, NULL,
 7806             vi->viid, "VI identifer");
 7807         SYSCTL_ADD_INT(ctx, children, OID_AUTO, "nrxq", CTLFLAG_RD,
 7808             &vi->nrxq, 0, "# of rx queues");
 7809         SYSCTL_ADD_INT(ctx, children, OID_AUTO, "ntxq", CTLFLAG_RD,
 7810             &vi->ntxq, 0, "# of tx queues");
 7811         SYSCTL_ADD_INT(ctx, children, OID_AUTO, "first_rxq", CTLFLAG_RD,
 7812             &vi->first_rxq, 0, "index of first rx queue");
 7813         SYSCTL_ADD_INT(ctx, children, OID_AUTO, "first_txq", CTLFLAG_RD,
 7814             &vi->first_txq, 0, "index of first tx queue");
 7815         SYSCTL_ADD_UINT(ctx, children, OID_AUTO, "rss_base", CTLFLAG_RD, NULL,
 7816             vi->rss_base, "start of RSS indirection table");
 7817         SYSCTL_ADD_UINT(ctx, children, OID_AUTO, "rss_size", CTLFLAG_RD, NULL,
 7818             vi->rss_size, "size of RSS indirection table");
 7819 
 7820         if (IS_MAIN_VI(vi)) {
 7821                 SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "rsrv_noflowq",
 7822                     CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, vi, 0,
 7823                     sysctl_noflowq, "IU",
 7824                     "Reserve queue 0 for non-flowid packets");
 7825         }
 7826 
 7827         if (vi->adapter->flags & IS_VF) {
 7828                 MPASS(vi->flags & TX_USES_VM_WR);
 7829                 SYSCTL_ADD_UINT(ctx, children, OID_AUTO, "tx_vm_wr", CTLFLAG_RD,
 7830                     NULL, 1, "use VM work requests for transmit");
 7831         } else {
 7832                 SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "tx_vm_wr",
 7833                     CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, vi, 0,
 7834                     sysctl_tx_vm_wr, "I", "use VM work requestes for transmit");
 7835         }
 7836 
 7837 #ifdef TCP_OFFLOAD
 7838         if (vi->nofldrxq != 0) {
 7839                 SYSCTL_ADD_INT(ctx, children, OID_AUTO, "nofldrxq", CTLFLAG_RD,
 7840                     &vi->nofldrxq, 0,
 7841                     "# of rx queues for offloaded TCP connections");
 7842                 SYSCTL_ADD_INT(ctx, children, OID_AUTO, "first_ofld_rxq",
 7843                     CTLFLAG_RD, &vi->first_ofld_rxq, 0,
 7844                     "index of first TOE rx queue");
 7845                 SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "holdoff_tmr_idx_ofld",
 7846                     CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, vi, 0,
 7847                     sysctl_holdoff_tmr_idx_ofld, "I",
 7848                     "holdoff timer index for TOE queues");
 7849                 SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "holdoff_pktc_idx_ofld",
 7850                     CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, vi, 0,
 7851                     sysctl_holdoff_pktc_idx_ofld, "I",
 7852                     "holdoff packet counter index for TOE queues");
 7853         }
 7854 #endif
 7855 #if defined(TCP_OFFLOAD) || defined(RATELIMIT)
 7856         if (vi->nofldtxq != 0) {
 7857                 SYSCTL_ADD_INT(ctx, children, OID_AUTO, "nofldtxq", CTLFLAG_RD,
 7858                     &vi->nofldtxq, 0,
 7859                     "# of tx queues for TOE/ETHOFLD");
 7860                 SYSCTL_ADD_INT(ctx, children, OID_AUTO, "first_ofld_txq",
 7861                     CTLFLAG_RD, &vi->first_ofld_txq, 0,
 7862                     "index of first TOE/ETHOFLD tx queue");
 7863         }
 7864 #endif
 7865 #ifdef DEV_NETMAP
 7866         if (vi->nnmrxq != 0) {
 7867                 SYSCTL_ADD_INT(ctx, children, OID_AUTO, "nnmrxq", CTLFLAG_RD,
 7868                     &vi->nnmrxq, 0, "# of netmap rx queues");
 7869                 SYSCTL_ADD_INT(ctx, children, OID_AUTO, "nnmtxq", CTLFLAG_RD,
 7870                     &vi->nnmtxq, 0, "# of netmap tx queues");
 7871                 SYSCTL_ADD_INT(ctx, children, OID_AUTO, "first_nm_rxq",
 7872                     CTLFLAG_RD, &vi->first_nm_rxq, 0,
 7873                     "index of first netmap rx queue");
 7874                 SYSCTL_ADD_INT(ctx, children, OID_AUTO, "first_nm_txq",
 7875                     CTLFLAG_RD, &vi->first_nm_txq, 0,
 7876                     "index of first netmap tx queue");
 7877         }
 7878 #endif
 7879 
 7880         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "holdoff_tmr_idx",
 7881             CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, vi, 0,
 7882             sysctl_holdoff_tmr_idx, "I", "holdoff timer index");
 7883         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "holdoff_pktc_idx",
 7884             CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, vi, 0,
 7885             sysctl_holdoff_pktc_idx, "I", "holdoff packet counter index");
 7886 
 7887         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "qsize_rxq",
 7888             CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, vi, 0,
 7889             sysctl_qsize_rxq, "I", "rx queue size");
 7890         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "qsize_txq",
 7891             CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, vi, 0,
 7892             sysctl_qsize_txq, "I", "tx queue size");
 7893 }
 7894 
 7895 static void
 7896 cxgbe_sysctls(struct port_info *pi)
 7897 {
 7898         struct sysctl_ctx_list *ctx = &pi->ctx;
 7899         struct sysctl_oid *oid;
 7900         struct sysctl_oid_list *children, *children2;
 7901         struct adapter *sc = pi->adapter;
 7902         int i;
 7903         char name[16];
 7904         static char *tc_flags = {"\2\1USER"};
 7905 
 7906         /*
 7907          * dev.cxgbe.X.
 7908          */
 7909         oid = device_get_sysctl_tree(pi->dev);
 7910         children = SYSCTL_CHILDREN(oid);
 7911 
 7912         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "linkdnrc",
 7913             CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, pi, 0,
 7914             sysctl_linkdnrc, "A", "reason why link is down");
 7915         if (pi->port_type == FW_PORT_TYPE_BT_XAUI) {
 7916                 SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "temperature",
 7917                     CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, pi, 0,
 7918                     sysctl_btphy, "I", "PHY temperature (in Celsius)");
 7919                 SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "fw_version",
 7920                     CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, pi, 1,
 7921                     sysctl_btphy, "I", "PHY firmware version");
 7922         }
 7923 
 7924         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "pause_settings",
 7925             CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_MPSAFE, pi, 0,
 7926             sysctl_pause_settings, "A",
 7927             "PAUSE settings (bit 0 = rx_pause, 1 = tx_pause, 2 = pause_autoneg)");
 7928         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "link_fec",
 7929             CTLTYPE_STRING | CTLFLAG_MPSAFE, pi, 0, sysctl_link_fec, "A",
 7930             "FEC in use on the link");
 7931         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "requested_fec",
 7932             CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_MPSAFE, pi, 0,
 7933             sysctl_requested_fec, "A",
 7934             "FECs to use (bit 0 = RS, 1 = FC, 2 = none, 5 = auto, 6 = module)");
 7935         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "module_fec",
 7936             CTLTYPE_STRING | CTLFLAG_MPSAFE, pi, 0, sysctl_module_fec, "A",
 7937             "FEC recommended by the cable/transceiver");
 7938         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "autoneg",
 7939             CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, pi, 0,
 7940             sysctl_autoneg, "I",
 7941             "autonegotiation (-1 = not supported)");
 7942         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "force_fec",
 7943             CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, pi, 0,
 7944             sysctl_force_fec, "I", "when to use FORCE_FEC bit for link config");
 7945 
 7946         SYSCTL_ADD_INT(ctx, children, OID_AUTO, "rcaps", CTLFLAG_RD,
 7947             &pi->link_cfg.requested_caps, 0, "L1 config requested by driver");
 7948         SYSCTL_ADD_INT(ctx, children, OID_AUTO, "pcaps", CTLFLAG_RD,
 7949             &pi->link_cfg.pcaps, 0, "port capabilities");
 7950         SYSCTL_ADD_INT(ctx, children, OID_AUTO, "acaps", CTLFLAG_RD,
 7951             &pi->link_cfg.acaps, 0, "advertised capabilities");
 7952         SYSCTL_ADD_INT(ctx, children, OID_AUTO, "lpacaps", CTLFLAG_RD,
 7953             &pi->link_cfg.lpacaps, 0, "link partner advertised capabilities");
 7954 
 7955         SYSCTL_ADD_INT(ctx, children, OID_AUTO, "max_speed", CTLFLAG_RD, NULL,
 7956             port_top_speed(pi), "max speed (in Gbps)");
 7957         SYSCTL_ADD_INT(ctx, children, OID_AUTO, "mps_bg_map", CTLFLAG_RD, NULL,
 7958             pi->mps_bg_map, "MPS buffer group map");
 7959         SYSCTL_ADD_INT(ctx, children, OID_AUTO, "rx_e_chan_map", CTLFLAG_RD,
 7960             NULL, pi->rx_e_chan_map, "TP rx e-channel map");
 7961         SYSCTL_ADD_INT(ctx, children, OID_AUTO, "rx_c_chan", CTLFLAG_RD, NULL,
 7962             pi->rx_c_chan, "TP rx c-channel");
 7963 
 7964         if (sc->flags & IS_VF)
 7965                 return;
 7966 
 7967         /*
 7968          * dev.(cxgbe|cxl).X.tc.
 7969          */
 7970         oid = SYSCTL_ADD_NODE(ctx, children, OID_AUTO, "tc",
 7971             CTLFLAG_RD | CTLFLAG_MPSAFE, NULL,
 7972             "Tx scheduler traffic classes (cl_rl)");
 7973         children2 = SYSCTL_CHILDREN(oid);
 7974         SYSCTL_ADD_UINT(ctx, children2, OID_AUTO, "pktsize",
 7975             CTLFLAG_RW, &pi->sched_params->pktsize, 0,
 7976             "pktsize for per-flow cl-rl (0 means up to the driver )");
 7977         SYSCTL_ADD_UINT(ctx, children2, OID_AUTO, "burstsize",
 7978             CTLFLAG_RW, &pi->sched_params->burstsize, 0,
 7979             "burstsize for per-flow cl-rl (0 means up to the driver)");
 7980         for (i = 0; i < sc->params.nsched_cls; i++) {
 7981                 struct tx_cl_rl_params *tc = &pi->sched_params->cl_rl[i];
 7982 
 7983                 snprintf(name, sizeof(name), "%d", i);
 7984                 children2 = SYSCTL_CHILDREN(SYSCTL_ADD_NODE(ctx,
 7985                     SYSCTL_CHILDREN(oid), OID_AUTO, name,
 7986                     CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "traffic class"));
 7987                 SYSCTL_ADD_UINT(ctx, children2, OID_AUTO, "state",
 7988                     CTLFLAG_RD, &tc->state, 0, "current state");
 7989                 SYSCTL_ADD_PROC(ctx, children2, OID_AUTO, "flags",
 7990                     CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, tc_flags,
 7991                     (uintptr_t)&tc->flags, sysctl_bitfield_8b, "A", "flags");
 7992                 SYSCTL_ADD_UINT(ctx, children2, OID_AUTO, "refcount",
 7993                     CTLFLAG_RD, &tc->refcount, 0, "references to this class");
 7994                 SYSCTL_ADD_PROC(ctx, children2, OID_AUTO, "params",
 7995                     CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc,
 7996                     (pi->port_id << 16) | i, sysctl_tc_params, "A",
 7997                     "traffic class parameters");
 7998         }
 7999 
 8000         /*
 8001          * dev.cxgbe.X.stats.
 8002          */
 8003         oid = SYSCTL_ADD_NODE(ctx, children, OID_AUTO, "stats",
 8004             CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "port statistics");
 8005         children = SYSCTL_CHILDREN(oid);
 8006         SYSCTL_ADD_UINT(ctx, children, OID_AUTO, "tx_parse_error", CTLFLAG_RD,
 8007             &pi->tx_parse_error, 0,
 8008             "# of tx packets with invalid length or # of segments");
 8009 
 8010 #define T4_REGSTAT(name, stat, desc) \
 8011     SYSCTL_ADD_OID(ctx, children, OID_AUTO, #name, \
 8012         CTLTYPE_U64 | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, \
 8013         (is_t4(sc) ? PORT_REG(pi->tx_chan, A_MPS_PORT_STAT_##stat##_L) : \
 8014         T5_PORT_REG(pi->tx_chan, A_MPS_PORT_STAT_##stat##_L)), \
 8015         sysctl_handle_t4_reg64, "QU", desc)
 8016 
 8017 /* We get these from port_stats and they may be stale by up to 1s */
 8018 #define T4_PORTSTAT(name, desc) \
 8019         SYSCTL_ADD_UQUAD(ctx, children, OID_AUTO, #name, CTLFLAG_RD, \
 8020             &pi->stats.name, desc)
 8021 
 8022         T4_REGSTAT(tx_octets, TX_PORT_BYTES, "# of octets in good frames");
 8023         T4_REGSTAT(tx_frames, TX_PORT_FRAMES, "total # of good frames");
 8024         T4_REGSTAT(tx_bcast_frames, TX_PORT_BCAST, "# of broadcast frames");
 8025         T4_REGSTAT(tx_mcast_frames, TX_PORT_MCAST, "# of multicast frames");
 8026         T4_REGSTAT(tx_ucast_frames, TX_PORT_UCAST, "# of unicast frames");
 8027         T4_REGSTAT(tx_error_frames, TX_PORT_ERROR, "# of error frames");
 8028         T4_REGSTAT(tx_frames_64, TX_PORT_64B, "# of tx frames in this range");
 8029         T4_REGSTAT(tx_frames_65_127, TX_PORT_65B_127B, "# of tx frames in this range");
 8030         T4_REGSTAT(tx_frames_128_255, TX_PORT_128B_255B, "# of tx frames in this range");
 8031         T4_REGSTAT(tx_frames_256_511, TX_PORT_256B_511B, "# of tx frames in this range");
 8032         T4_REGSTAT(tx_frames_512_1023, TX_PORT_512B_1023B, "# of tx frames in this range");
 8033         T4_REGSTAT(tx_frames_1024_1518, TX_PORT_1024B_1518B, "# of tx frames in this range");
 8034         T4_REGSTAT(tx_frames_1519_max, TX_PORT_1519B_MAX, "# of tx frames in this range");
 8035         T4_REGSTAT(tx_drop, TX_PORT_DROP, "# of dropped tx frames");
 8036         T4_REGSTAT(tx_pause, TX_PORT_PAUSE, "# of pause frames transmitted");
 8037         T4_REGSTAT(tx_ppp0, TX_PORT_PPP0, "# of PPP prio 0 frames transmitted");
 8038         T4_REGSTAT(tx_ppp1, TX_PORT_PPP1, "# of PPP prio 1 frames transmitted");
 8039         T4_REGSTAT(tx_ppp2, TX_PORT_PPP2, "# of PPP prio 2 frames transmitted");
 8040         T4_REGSTAT(tx_ppp3, TX_PORT_PPP3, "# of PPP prio 3 frames transmitted");
 8041         T4_REGSTAT(tx_ppp4, TX_PORT_PPP4, "# of PPP prio 4 frames transmitted");
 8042         T4_REGSTAT(tx_ppp5, TX_PORT_PPP5, "# of PPP prio 5 frames transmitted");
 8043         T4_REGSTAT(tx_ppp6, TX_PORT_PPP6, "# of PPP prio 6 frames transmitted");
 8044         T4_REGSTAT(tx_ppp7, TX_PORT_PPP7, "# of PPP prio 7 frames transmitted");
 8045 
 8046         T4_REGSTAT(rx_octets, RX_PORT_BYTES, "# of octets in good frames");
 8047         T4_REGSTAT(rx_frames, RX_PORT_FRAMES, "total # of good frames");
 8048         T4_REGSTAT(rx_bcast_frames, RX_PORT_BCAST, "# of broadcast frames");
 8049         T4_REGSTAT(rx_mcast_frames, RX_PORT_MCAST, "# of multicast frames");
 8050         T4_REGSTAT(rx_ucast_frames, RX_PORT_UCAST, "# of unicast frames");
 8051         T4_REGSTAT(rx_too_long, RX_PORT_MTU_ERROR, "# of frames exceeding MTU");
 8052         T4_REGSTAT(rx_jabber, RX_PORT_MTU_CRC_ERROR, "# of jabber frames");
 8053         if (is_t6(sc)) {
 8054                 T4_PORTSTAT(rx_fcs_err,
 8055                     "# of frames received with bad FCS since last link up");
 8056         } else {
 8057                 T4_REGSTAT(rx_fcs_err, RX_PORT_CRC_ERROR,
 8058                     "# of frames received with bad FCS");
 8059         }
 8060         T4_REGSTAT(rx_len_err, RX_PORT_LEN_ERROR, "# of frames received with length error");
 8061         T4_REGSTAT(rx_symbol_err, RX_PORT_SYM_ERROR, "symbol errors");
 8062         T4_REGSTAT(rx_runt, RX_PORT_LESS_64B, "# of short frames received");
 8063         T4_REGSTAT(rx_frames_64, RX_PORT_64B, "# of rx frames in this range");
 8064         T4_REGSTAT(rx_frames_65_127, RX_PORT_65B_127B, "# of rx frames in this range");
 8065         T4_REGSTAT(rx_frames_128_255, RX_PORT_128B_255B, "# of rx frames in this range");
 8066         T4_REGSTAT(rx_frames_256_511, RX_PORT_256B_511B, "# of rx frames in this range");
 8067         T4_REGSTAT(rx_frames_512_1023, RX_PORT_512B_1023B, "# of rx frames in this range");
 8068         T4_REGSTAT(rx_frames_1024_1518, RX_PORT_1024B_1518B, "# of rx frames in this range");
 8069         T4_REGSTAT(rx_frames_1519_max, RX_PORT_1519B_MAX, "# of rx frames in this range");
 8070         T4_REGSTAT(rx_pause, RX_PORT_PAUSE, "# of pause frames received");
 8071         T4_REGSTAT(rx_ppp0, RX_PORT_PPP0, "# of PPP prio 0 frames received");
 8072         T4_REGSTAT(rx_ppp1, RX_PORT_PPP1, "# of PPP prio 1 frames received");
 8073         T4_REGSTAT(rx_ppp2, RX_PORT_PPP2, "# of PPP prio 2 frames received");
 8074         T4_REGSTAT(rx_ppp3, RX_PORT_PPP3, "# of PPP prio 3 frames received");
 8075         T4_REGSTAT(rx_ppp4, RX_PORT_PPP4, "# of PPP prio 4 frames received");
 8076         T4_REGSTAT(rx_ppp5, RX_PORT_PPP5, "# of PPP prio 5 frames received");
 8077         T4_REGSTAT(rx_ppp6, RX_PORT_PPP6, "# of PPP prio 6 frames received");
 8078         T4_REGSTAT(rx_ppp7, RX_PORT_PPP7, "# of PPP prio 7 frames received");
 8079 
 8080         T4_PORTSTAT(rx_ovflow0, "# drops due to buffer-group 0 overflows");
 8081         T4_PORTSTAT(rx_ovflow1, "# drops due to buffer-group 1 overflows");
 8082         T4_PORTSTAT(rx_ovflow2, "# drops due to buffer-group 2 overflows");
 8083         T4_PORTSTAT(rx_ovflow3, "# drops due to buffer-group 3 overflows");
 8084         T4_PORTSTAT(rx_trunc0, "# of buffer-group 0 truncated packets");
 8085         T4_PORTSTAT(rx_trunc1, "# of buffer-group 1 truncated packets");
 8086         T4_PORTSTAT(rx_trunc2, "# of buffer-group 2 truncated packets");
 8087         T4_PORTSTAT(rx_trunc3, "# of buffer-group 3 truncated packets");
 8088 
 8089 #undef T4_REGSTAT
 8090 #undef T4_PORTSTAT
 8091 }
 8092 
 8093 static int
 8094 sysctl_int_array(SYSCTL_HANDLER_ARGS)
 8095 {
 8096         int rc, *i, space = 0;
 8097         struct sbuf sb;
 8098 
 8099         sbuf_new_for_sysctl(&sb, NULL, 64, req);
 8100         for (i = arg1; arg2; arg2 -= sizeof(int), i++) {
 8101                 if (space)
 8102                         sbuf_printf(&sb, " ");
 8103                 sbuf_printf(&sb, "%d", *i);
 8104                 space = 1;
 8105         }
 8106         rc = sbuf_finish(&sb);
 8107         sbuf_delete(&sb);
 8108         return (rc);
 8109 }
 8110 
 8111 static int
 8112 sysctl_bitfield_8b(SYSCTL_HANDLER_ARGS)
 8113 {
 8114         int rc;
 8115         struct sbuf *sb;
 8116 
 8117         rc = sysctl_wire_old_buffer(req, 0);
 8118         if (rc != 0)
 8119                 return(rc);
 8120 
 8121         sb = sbuf_new_for_sysctl(NULL, NULL, 128, req);
 8122         if (sb == NULL)
 8123                 return (ENOMEM);
 8124 
 8125         sbuf_printf(sb, "%b", *(uint8_t *)(uintptr_t)arg2, (char *)arg1);
 8126         rc = sbuf_finish(sb);
 8127         sbuf_delete(sb);
 8128 
 8129         return (rc);
 8130 }
 8131 
 8132 static int
 8133 sysctl_bitfield_16b(SYSCTL_HANDLER_ARGS)
 8134 {
 8135         int rc;
 8136         struct sbuf *sb;
 8137 
 8138         rc = sysctl_wire_old_buffer(req, 0);
 8139         if (rc != 0)
 8140                 return(rc);
 8141 
 8142         sb = sbuf_new_for_sysctl(NULL, NULL, 128, req);
 8143         if (sb == NULL)
 8144                 return (ENOMEM);
 8145 
 8146         sbuf_printf(sb, "%b", *(uint16_t *)(uintptr_t)arg2, (char *)arg1);
 8147         rc = sbuf_finish(sb);
 8148         sbuf_delete(sb);
 8149 
 8150         return (rc);
 8151 }
 8152 
 8153 static int
 8154 sysctl_btphy(SYSCTL_HANDLER_ARGS)
 8155 {
 8156         struct port_info *pi = arg1;
 8157         int op = arg2;
 8158         struct adapter *sc = pi->adapter;
 8159         u_int v;
 8160         int rc;
 8161 
 8162         rc = begin_synchronized_op(sc, &pi->vi[0], SLEEP_OK | INTR_OK, "t4btt");
 8163         if (rc)
 8164                 return (rc);
 8165         if (hw_off_limits(sc))
 8166                 rc = ENXIO;
 8167         else {
 8168                 /* XXX: magic numbers */
 8169                 rc = -t4_mdio_rd(sc, sc->mbox, pi->mdio_addr, 0x1e,
 8170                     op ? 0x20 : 0xc820, &v);
 8171         }
 8172         end_synchronized_op(sc, 0);
 8173         if (rc)
 8174                 return (rc);
 8175         if (op == 0)
 8176                 v /= 256;
 8177 
 8178         rc = sysctl_handle_int(oidp, &v, 0, req);
 8179         return (rc);
 8180 }
 8181 
 8182 static int
 8183 sysctl_noflowq(SYSCTL_HANDLER_ARGS)
 8184 {
 8185         struct vi_info *vi = arg1;
 8186         int rc, val;
 8187 
 8188         val = vi->rsrv_noflowq;
 8189         rc = sysctl_handle_int(oidp, &val, 0, req);
 8190         if (rc != 0 || req->newptr == NULL)
 8191                 return (rc);
 8192 
 8193         if ((val >= 1) && (vi->ntxq > 1))
 8194                 vi->rsrv_noflowq = 1;
 8195         else
 8196                 vi->rsrv_noflowq = 0;
 8197 
 8198         return (rc);
 8199 }
 8200 
 8201 static int
 8202 sysctl_tx_vm_wr(SYSCTL_HANDLER_ARGS)
 8203 {
 8204         struct vi_info *vi = arg1;
 8205         struct adapter *sc = vi->adapter;
 8206         int rc, val, i;
 8207 
 8208         MPASS(!(sc->flags & IS_VF));
 8209 
 8210         val = vi->flags & TX_USES_VM_WR ? 1 : 0;
 8211         rc = sysctl_handle_int(oidp, &val, 0, req);
 8212         if (rc != 0 || req->newptr == NULL)
 8213                 return (rc);
 8214 
 8215         if (val != 0 && val != 1)
 8216                 return (EINVAL);
 8217 
 8218         rc = begin_synchronized_op(sc, vi, HOLD_LOCK | SLEEP_OK | INTR_OK,
 8219             "t4txvm");
 8220         if (rc)
 8221                 return (rc);
 8222         if (hw_off_limits(sc))
 8223                 rc = ENXIO;
 8224         else if (vi->ifp->if_drv_flags & IFF_DRV_RUNNING) {
 8225                 /*
 8226                  * We don't want parse_pkt to run with one setting (VF or PF)
 8227                  * and then eth_tx to see a different setting but still use
 8228                  * stale information calculated by parse_pkt.
 8229                  */
 8230                 rc = EBUSY;
 8231         } else {
 8232                 struct port_info *pi = vi->pi;
 8233                 struct sge_txq *txq;
 8234                 uint32_t ctrl0;
 8235                 uint8_t npkt = sc->params.max_pkts_per_eth_tx_pkts_wr;
 8236 
 8237                 if (val) {
 8238                         vi->flags |= TX_USES_VM_WR;
 8239                         vi->ifp->if_hw_tsomaxsegcount = TX_SGL_SEGS_VM_TSO;
 8240                         ctrl0 = htobe32(V_TXPKT_OPCODE(CPL_TX_PKT_XT) |
 8241                             V_TXPKT_INTF(pi->tx_chan));
 8242                         if (!(sc->flags & IS_VF))
 8243                                 npkt--;
 8244                 } else {
 8245                         vi->flags &= ~TX_USES_VM_WR;
 8246                         vi->ifp->if_hw_tsomaxsegcount = TX_SGL_SEGS_TSO;
 8247                         ctrl0 = htobe32(V_TXPKT_OPCODE(CPL_TX_PKT_XT) |
 8248                             V_TXPKT_INTF(pi->tx_chan) | V_TXPKT_PF(sc->pf) |
 8249                             V_TXPKT_VF(vi->vin) | V_TXPKT_VF_VLD(vi->vfvld));
 8250                 }
 8251                 for_each_txq(vi, i, txq) {
 8252                         txq->cpl_ctrl0 = ctrl0;
 8253                         txq->txp.max_npkt = npkt;
 8254                 }
 8255         }
 8256         end_synchronized_op(sc, LOCK_HELD);
 8257         return (rc);
 8258 }
 8259 
 8260 static int
 8261 sysctl_holdoff_tmr_idx(SYSCTL_HANDLER_ARGS)
 8262 {
 8263         struct vi_info *vi = arg1;
 8264         struct adapter *sc = vi->adapter;
 8265         int idx, rc, i;
 8266         struct sge_rxq *rxq;
 8267         uint8_t v;
 8268 
 8269         idx = vi->tmr_idx;
 8270 
 8271         rc = sysctl_handle_int(oidp, &idx, 0, req);
 8272         if (rc != 0 || req->newptr == NULL)
 8273                 return (rc);
 8274 
 8275         if (idx < 0 || idx >= SGE_NTIMERS)
 8276                 return (EINVAL);
 8277 
 8278         rc = begin_synchronized_op(sc, vi, HOLD_LOCK | SLEEP_OK | INTR_OK,
 8279             "t4tmr");
 8280         if (rc)
 8281                 return (rc);
 8282 
 8283         v = V_QINTR_TIMER_IDX(idx) | V_QINTR_CNT_EN(vi->pktc_idx != -1);
 8284         for_each_rxq(vi, i, rxq) {
 8285 #ifdef atomic_store_rel_8
 8286                 atomic_store_rel_8(&rxq->iq.intr_params, v);
 8287 #else
 8288                 rxq->iq.intr_params = v;
 8289 #endif
 8290         }
 8291         vi->tmr_idx = idx;
 8292 
 8293         end_synchronized_op(sc, LOCK_HELD);
 8294         return (0);
 8295 }
 8296 
 8297 static int
 8298 sysctl_holdoff_pktc_idx(SYSCTL_HANDLER_ARGS)
 8299 {
 8300         struct vi_info *vi = arg1;
 8301         struct adapter *sc = vi->adapter;
 8302         int idx, rc;
 8303 
 8304         idx = vi->pktc_idx;
 8305 
 8306         rc = sysctl_handle_int(oidp, &idx, 0, req);
 8307         if (rc != 0 || req->newptr == NULL)
 8308                 return (rc);
 8309 
 8310         if (idx < -1 || idx >= SGE_NCOUNTERS)
 8311                 return (EINVAL);
 8312 
 8313         rc = begin_synchronized_op(sc, vi, HOLD_LOCK | SLEEP_OK | INTR_OK,
 8314             "t4pktc");
 8315         if (rc)
 8316                 return (rc);
 8317 
 8318         if (vi->flags & VI_INIT_DONE)
 8319                 rc = EBUSY; /* cannot be changed once the queues are created */
 8320         else
 8321                 vi->pktc_idx = idx;
 8322 
 8323         end_synchronized_op(sc, LOCK_HELD);
 8324         return (rc);
 8325 }
 8326 
 8327 static int
 8328 sysctl_qsize_rxq(SYSCTL_HANDLER_ARGS)
 8329 {
 8330         struct vi_info *vi = arg1;
 8331         struct adapter *sc = vi->adapter;
 8332         int qsize, rc;
 8333 
 8334         qsize = vi->qsize_rxq;
 8335 
 8336         rc = sysctl_handle_int(oidp, &qsize, 0, req);
 8337         if (rc != 0 || req->newptr == NULL)
 8338                 return (rc);
 8339 
 8340         if (qsize < 128 || (qsize & 7))
 8341                 return (EINVAL);
 8342 
 8343         rc = begin_synchronized_op(sc, vi, HOLD_LOCK | SLEEP_OK | INTR_OK,
 8344             "t4rxqs");
 8345         if (rc)
 8346                 return (rc);
 8347 
 8348         if (vi->flags & VI_INIT_DONE)
 8349                 rc = EBUSY; /* cannot be changed once the queues are created */
 8350         else
 8351                 vi->qsize_rxq = qsize;
 8352 
 8353         end_synchronized_op(sc, LOCK_HELD);
 8354         return (rc);
 8355 }
 8356 
 8357 static int
 8358 sysctl_qsize_txq(SYSCTL_HANDLER_ARGS)
 8359 {
 8360         struct vi_info *vi = arg1;
 8361         struct adapter *sc = vi->adapter;
 8362         int qsize, rc;
 8363 
 8364         qsize = vi->qsize_txq;
 8365 
 8366         rc = sysctl_handle_int(oidp, &qsize, 0, req);
 8367         if (rc != 0 || req->newptr == NULL)
 8368                 return (rc);
 8369 
 8370         if (qsize < 128 || qsize > 65536)
 8371                 return (EINVAL);
 8372 
 8373         rc = begin_synchronized_op(sc, vi, HOLD_LOCK | SLEEP_OK | INTR_OK,
 8374             "t4txqs");
 8375         if (rc)
 8376                 return (rc);
 8377 
 8378         if (vi->flags & VI_INIT_DONE)
 8379                 rc = EBUSY; /* cannot be changed once the queues are created */
 8380         else
 8381                 vi->qsize_txq = qsize;
 8382 
 8383         end_synchronized_op(sc, LOCK_HELD);
 8384         return (rc);
 8385 }
 8386 
 8387 static int
 8388 sysctl_pause_settings(SYSCTL_HANDLER_ARGS)
 8389 {
 8390         struct port_info *pi = arg1;
 8391         struct adapter *sc = pi->adapter;
 8392         struct link_config *lc = &pi->link_cfg;
 8393         int rc;
 8394 
 8395         if (req->newptr == NULL) {
 8396                 struct sbuf *sb;
 8397                 static char *bits = "\2\1RX\2TX\3AUTO";
 8398 
 8399                 rc = sysctl_wire_old_buffer(req, 0);
 8400                 if (rc != 0)
 8401                         return(rc);
 8402 
 8403                 sb = sbuf_new_for_sysctl(NULL, NULL, 128, req);
 8404                 if (sb == NULL)
 8405                         return (ENOMEM);
 8406 
 8407                 if (lc->link_ok) {
 8408                         sbuf_printf(sb, "%b", (lc->fc & (PAUSE_TX | PAUSE_RX)) |
 8409                             (lc->requested_fc & PAUSE_AUTONEG), bits);
 8410                 } else {
 8411                         sbuf_printf(sb, "%b", lc->requested_fc & (PAUSE_TX |
 8412                             PAUSE_RX | PAUSE_AUTONEG), bits);
 8413                 }
 8414                 rc = sbuf_finish(sb);
 8415                 sbuf_delete(sb);
 8416         } else {
 8417                 char s[2];
 8418                 int n;
 8419 
 8420                 s[0] = '' + (lc->requested_fc & (PAUSE_TX | PAUSE_RX |
 8421                     PAUSE_AUTONEG));
 8422                 s[1] = 0;
 8423 
 8424                 rc = sysctl_handle_string(oidp, s, sizeof(s), req);
 8425                 if (rc != 0)
 8426                         return(rc);
 8427 
 8428                 if (s[1] != 0)
 8429                         return (EINVAL);
 8430                 if (s[0] < '' || s[0] > '9')
 8431                         return (EINVAL);        /* not a number */
 8432                 n = s[0] - '';
 8433                 if (n & ~(PAUSE_TX | PAUSE_RX | PAUSE_AUTONEG))
 8434                         return (EINVAL);        /* some other bit is set too */
 8435 
 8436                 rc = begin_synchronized_op(sc, &pi->vi[0], SLEEP_OK | INTR_OK,
 8437                     "t4PAUSE");
 8438                 if (rc)
 8439                         return (rc);
 8440                 if (!hw_off_limits(sc)) {
 8441                         PORT_LOCK(pi);
 8442                         lc->requested_fc = n;
 8443                         fixup_link_config(pi);
 8444                         if (pi->up_vis > 0)
 8445                                 rc = apply_link_config(pi);
 8446                         set_current_media(pi);
 8447                         PORT_UNLOCK(pi);
 8448                 }
 8449                 end_synchronized_op(sc, 0);
 8450         }
 8451 
 8452         return (rc);
 8453 }
 8454 
 8455 static int
 8456 sysctl_link_fec(SYSCTL_HANDLER_ARGS)
 8457 {
 8458         struct port_info *pi = arg1;
 8459         struct link_config *lc = &pi->link_cfg;
 8460         int rc;
 8461         struct sbuf *sb;
 8462         static char *bits = "\2\1RS-FEC\2FC-FEC\3NO-FEC\4RSVD1\5RSVD2";
 8463 
 8464         rc = sysctl_wire_old_buffer(req, 0);
 8465         if (rc != 0)
 8466                 return(rc);
 8467 
 8468         sb = sbuf_new_for_sysctl(NULL, NULL, 128, req);
 8469         if (sb == NULL)
 8470                 return (ENOMEM);
 8471         if (lc->link_ok)
 8472                 sbuf_printf(sb, "%b", lc->fec, bits);
 8473         else
 8474                 sbuf_printf(sb, "no link");
 8475         rc = sbuf_finish(sb);
 8476         sbuf_delete(sb);
 8477 
 8478         return (rc);
 8479 }
 8480 
 8481 static int
 8482 sysctl_requested_fec(SYSCTL_HANDLER_ARGS)
 8483 {
 8484         struct port_info *pi = arg1;
 8485         struct adapter *sc = pi->adapter;
 8486         struct link_config *lc = &pi->link_cfg;
 8487         int rc;
 8488         int8_t old;
 8489 
 8490         if (req->newptr == NULL) {
 8491                 struct sbuf *sb;
 8492                 static char *bits = "\2\1RS-FEC\2FC-FEC\3NO-FEC\4RSVD2"
 8493                     "\5RSVD3\6auto\7module";
 8494 
 8495                 rc = sysctl_wire_old_buffer(req, 0);
 8496                 if (rc != 0)
 8497                         return(rc);
 8498 
 8499                 sb = sbuf_new_for_sysctl(NULL, NULL, 128, req);
 8500                 if (sb == NULL)
 8501                         return (ENOMEM);
 8502 
 8503                 sbuf_printf(sb, "%b", lc->requested_fec, bits);
 8504                 rc = sbuf_finish(sb);
 8505                 sbuf_delete(sb);
 8506         } else {
 8507                 char s[8];
 8508                 int n;
 8509 
 8510                 snprintf(s, sizeof(s), "%d",
 8511                     lc->requested_fec == FEC_AUTO ? -1 :
 8512                     lc->requested_fec & (M_FW_PORT_CAP32_FEC | FEC_MODULE));
 8513 
 8514                 rc = sysctl_handle_string(oidp, s, sizeof(s), req);
 8515                 if (rc != 0)
 8516                         return(rc);
 8517 
 8518                 n = strtol(&s[0], NULL, 0);
 8519                 if (n < 0 || n & FEC_AUTO)
 8520                         n = FEC_AUTO;
 8521                 else if (n & ~(M_FW_PORT_CAP32_FEC | FEC_MODULE))
 8522                         return (EINVAL);/* some other bit is set too */
 8523 
 8524                 rc = begin_synchronized_op(sc, &pi->vi[0], SLEEP_OK | INTR_OK,
 8525                     "t4reqf");
 8526                 if (rc)
 8527                         return (rc);
 8528                 PORT_LOCK(pi);
 8529                 old = lc->requested_fec;
 8530                 if (n == FEC_AUTO)
 8531                         lc->requested_fec = FEC_AUTO;
 8532                 else if (n == 0 || n == FEC_NONE)
 8533                         lc->requested_fec = FEC_NONE;
 8534                 else {
 8535                         if ((lc->pcaps |
 8536                             V_FW_PORT_CAP32_FEC(n & M_FW_PORT_CAP32_FEC)) !=
 8537                             lc->pcaps) {
 8538                                 rc = ENOTSUP;
 8539                                 goto done;
 8540                         }
 8541                         lc->requested_fec = n & (M_FW_PORT_CAP32_FEC |
 8542                             FEC_MODULE);
 8543                 }
 8544                 if (!hw_off_limits(sc)) {
 8545                         fixup_link_config(pi);
 8546                         if (pi->up_vis > 0) {
 8547                                 rc = apply_link_config(pi);
 8548                                 if (rc != 0) {
 8549                                         lc->requested_fec = old;
 8550                                         if (rc == FW_EPROTO)
 8551                                                 rc = ENOTSUP;
 8552                                 }
 8553                         }
 8554                 }
 8555 done:
 8556                 PORT_UNLOCK(pi);
 8557                 end_synchronized_op(sc, 0);
 8558         }
 8559 
 8560         return (rc);
 8561 }
 8562 
 8563 static int
 8564 sysctl_module_fec(SYSCTL_HANDLER_ARGS)
 8565 {
 8566         struct port_info *pi = arg1;
 8567         struct adapter *sc = pi->adapter;
 8568         struct link_config *lc = &pi->link_cfg;
 8569         int rc;
 8570         int8_t fec;
 8571         struct sbuf *sb;
 8572         static char *bits = "\2\1RS-FEC\2FC-FEC\3NO-FEC\4RSVD2\5RSVD3";
 8573 
 8574         rc = sysctl_wire_old_buffer(req, 0);
 8575         if (rc != 0)
 8576                 return (rc);
 8577 
 8578         sb = sbuf_new_for_sysctl(NULL, NULL, 128, req);
 8579         if (sb == NULL)
 8580                 return (ENOMEM);
 8581 
 8582         if (begin_synchronized_op(sc, NULL, SLEEP_OK | INTR_OK, "t4mfec") != 0) {
 8583                 rc = EBUSY;
 8584                 goto done;
 8585         }
 8586         if (hw_off_limits(sc)) {
 8587                 rc = ENXIO;
 8588                 goto done;
 8589         }
 8590         PORT_LOCK(pi);
 8591         if (pi->up_vis == 0) {
 8592                 /*
 8593                  * If all the interfaces are administratively down the firmware
 8594                  * does not report transceiver changes.  Refresh port info here.
 8595                  * This is the only reason we have a synchronized op in this
 8596                  * function.  Just PORT_LOCK would have been enough otherwise.
 8597                  */
 8598                 t4_update_port_info(pi);
 8599         }
 8600 
 8601         fec = lc->fec_hint;
 8602         if (pi->mod_type == FW_PORT_MOD_TYPE_NONE ||
 8603             !fec_supported(lc->pcaps)) {
 8604                 sbuf_printf(sb, "n/a");
 8605         } else {
 8606                 if (fec == 0)
 8607                         fec = FEC_NONE;
 8608                 sbuf_printf(sb, "%b", fec & M_FW_PORT_CAP32_FEC, bits);
 8609         }
 8610         rc = sbuf_finish(sb);
 8611         PORT_UNLOCK(pi);
 8612 done:
 8613         sbuf_delete(sb);
 8614         end_synchronized_op(sc, 0);
 8615 
 8616         return (rc);
 8617 }
 8618 
 8619 static int
 8620 sysctl_autoneg(SYSCTL_HANDLER_ARGS)
 8621 {
 8622         struct port_info *pi = arg1;
 8623         struct adapter *sc = pi->adapter;
 8624         struct link_config *lc = &pi->link_cfg;
 8625         int rc, val;
 8626 
 8627         if (lc->pcaps & FW_PORT_CAP32_ANEG)
 8628                 val = lc->requested_aneg == AUTONEG_DISABLE ? 0 : 1;
 8629         else
 8630                 val = -1;
 8631         rc = sysctl_handle_int(oidp, &val, 0, req);
 8632         if (rc != 0 || req->newptr == NULL)
 8633                 return (rc);
 8634         if (val == 0)
 8635                 val = AUTONEG_DISABLE;
 8636         else if (val == 1)
 8637                 val = AUTONEG_ENABLE;
 8638         else
 8639                 val = AUTONEG_AUTO;
 8640 
 8641         rc = begin_synchronized_op(sc, &pi->vi[0], SLEEP_OK | INTR_OK,
 8642             "t4aneg");
 8643         if (rc)
 8644                 return (rc);
 8645         PORT_LOCK(pi);
 8646         if (val == AUTONEG_ENABLE && !(lc->pcaps & FW_PORT_CAP32_ANEG)) {
 8647                 rc = ENOTSUP;
 8648                 goto done;
 8649         }
 8650         lc->requested_aneg = val;
 8651         if (!hw_off_limits(sc)) {
 8652                 fixup_link_config(pi);
 8653                 if (pi->up_vis > 0)
 8654                         rc = apply_link_config(pi);
 8655                 set_current_media(pi);
 8656         }
 8657 done:
 8658         PORT_UNLOCK(pi);
 8659         end_synchronized_op(sc, 0);
 8660         return (rc);
 8661 }
 8662 
 8663 static int
 8664 sysctl_force_fec(SYSCTL_HANDLER_ARGS)
 8665 {
 8666         struct port_info *pi = arg1;
 8667         struct adapter *sc = pi->adapter;
 8668         struct link_config *lc = &pi->link_cfg;
 8669         int rc, val;
 8670 
 8671         val = lc->force_fec;
 8672         MPASS(val >= -1 && val <= 1);
 8673         rc = sysctl_handle_int(oidp, &val, 0, req);
 8674         if (rc != 0 || req->newptr == NULL)
 8675                 return (rc);
 8676         if (!(lc->pcaps & FW_PORT_CAP32_FORCE_FEC))
 8677                 return (ENOTSUP);
 8678         if (val < -1 || val > 1)
 8679                 return (EINVAL);
 8680 
 8681         rc = begin_synchronized_op(sc, &pi->vi[0], SLEEP_OK | INTR_OK, "t4ff");
 8682         if (rc)
 8683                 return (rc);
 8684         PORT_LOCK(pi);
 8685         lc->force_fec = val;
 8686         if (!hw_off_limits(sc)) {
 8687                 fixup_link_config(pi);
 8688                 if (pi->up_vis > 0)
 8689                         rc = apply_link_config(pi);
 8690         }
 8691         PORT_UNLOCK(pi);
 8692         end_synchronized_op(sc, 0);
 8693         return (rc);
 8694 }
 8695 
 8696 static int
 8697 sysctl_handle_t4_reg64(SYSCTL_HANDLER_ARGS)
 8698 {
 8699         struct adapter *sc = arg1;
 8700         int rc, reg = arg2;
 8701         uint64_t val;
 8702 
 8703         mtx_lock(&sc->reg_lock);
 8704         if (hw_off_limits(sc))
 8705                 rc = ENXIO;
 8706         else {
 8707                 rc = 0;
 8708                 val = t4_read_reg64(sc, reg);
 8709         }
 8710         mtx_unlock(&sc->reg_lock);
 8711         if (rc == 0)
 8712                 rc = sysctl_handle_64(oidp, &val, 0, req);
 8713         return (rc);
 8714 }
 8715 
 8716 static int
 8717 sysctl_temperature(SYSCTL_HANDLER_ARGS)
 8718 {
 8719         struct adapter *sc = arg1;
 8720         int rc, t;
 8721         uint32_t param, val;
 8722 
 8723         rc = begin_synchronized_op(sc, NULL, SLEEP_OK | INTR_OK, "t4temp");
 8724         if (rc)
 8725                 return (rc);
 8726         if (hw_off_limits(sc))
 8727                 rc = ENXIO;
 8728         else {
 8729                 param = V_FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) |
 8730                     V_FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_DIAG) |
 8731                     V_FW_PARAMS_PARAM_Y(FW_PARAM_DEV_DIAG_TMP);
 8732                 rc = -t4_query_params(sc, sc->mbox, sc->pf, 0, 1, &param, &val);
 8733         }
 8734         end_synchronized_op(sc, 0);
 8735         if (rc)
 8736                 return (rc);
 8737 
 8738         /* unknown is returned as 0 but we display -1 in that case */
 8739         t = val == 0 ? -1 : val;
 8740 
 8741         rc = sysctl_handle_int(oidp, &t, 0, req);
 8742         return (rc);
 8743 }
 8744 
 8745 static int
 8746 sysctl_vdd(SYSCTL_HANDLER_ARGS)
 8747 {
 8748         struct adapter *sc = arg1;
 8749         int rc;
 8750         uint32_t param, val;
 8751 
 8752         if (sc->params.core_vdd == 0) {
 8753                 rc = begin_synchronized_op(sc, NULL, SLEEP_OK | INTR_OK,
 8754                     "t4vdd");
 8755                 if (rc)
 8756                         return (rc);
 8757                 if (hw_off_limits(sc))
 8758                         rc = ENXIO;
 8759                 else {
 8760                         param = V_FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) |
 8761                             V_FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_DIAG) |
 8762                             V_FW_PARAMS_PARAM_Y(FW_PARAM_DEV_DIAG_VDD);
 8763                         rc = -t4_query_params(sc, sc->mbox, sc->pf, 0, 1,
 8764                             &param, &val);
 8765                 }
 8766                 end_synchronized_op(sc, 0);
 8767                 if (rc)
 8768                         return (rc);
 8769                 sc->params.core_vdd = val;
 8770         }
 8771 
 8772         return (sysctl_handle_int(oidp, &sc->params.core_vdd, 0, req));
 8773 }
 8774 
 8775 static int
 8776 sysctl_reset_sensor(SYSCTL_HANDLER_ARGS)
 8777 {
 8778         struct adapter *sc = arg1;
 8779         int rc, v;
 8780         uint32_t param, val;
 8781 
 8782         v = sc->sensor_resets;
 8783         rc = sysctl_handle_int(oidp, &v, 0, req);
 8784         if (rc != 0 || req->newptr == NULL || v <= 0)
 8785                 return (rc);
 8786 
 8787         if (sc->params.fw_vers < FW_VERSION32(1, 24, 7, 0) ||
 8788             chip_id(sc) < CHELSIO_T5)
 8789                 return (ENOTSUP);
 8790 
 8791         rc = begin_synchronized_op(sc, NULL, SLEEP_OK | INTR_OK, "t4srst");
 8792         if (rc)
 8793                 return (rc);
 8794         if (hw_off_limits(sc))
 8795                 rc = ENXIO;
 8796         else {
 8797                 param = (V_FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) |
 8798                     V_FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_DIAG) |
 8799                     V_FW_PARAMS_PARAM_Y(FW_PARAM_DEV_DIAG_RESET_TMP_SENSOR));
 8800                 val = 1;
 8801                 rc = -t4_set_params(sc, sc->mbox, sc->pf, 0, 1, &param, &val);
 8802         }
 8803         end_synchronized_op(sc, 0);
 8804         if (rc == 0)
 8805                 sc->sensor_resets++;
 8806         return (rc);
 8807 }
 8808 
 8809 static int
 8810 sysctl_loadavg(SYSCTL_HANDLER_ARGS)
 8811 {
 8812         struct adapter *sc = arg1;
 8813         struct sbuf *sb;
 8814         int rc;
 8815         uint32_t param, val;
 8816 
 8817         rc = begin_synchronized_op(sc, NULL, SLEEP_OK | INTR_OK, "t4lavg");
 8818         if (rc)
 8819                 return (rc);
 8820         if (hw_off_limits(sc))
 8821                 rc = ENXIO;
 8822         else {
 8823                 param = V_FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) |
 8824                     V_FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_LOAD);
 8825                 rc = -t4_query_params(sc, sc->mbox, sc->pf, 0, 1, &param, &val);
 8826         }
 8827         end_synchronized_op(sc, 0);
 8828         if (rc)
 8829                 return (rc);
 8830 
 8831         rc = sysctl_wire_old_buffer(req, 0);
 8832         if (rc != 0)
 8833                 return (rc);
 8834 
 8835         sb = sbuf_new_for_sysctl(NULL, NULL, 4096, req);
 8836         if (sb == NULL)
 8837                 return (ENOMEM);
 8838 
 8839         if (val == 0xffffffff) {
 8840                 /* Only debug and custom firmwares report load averages. */
 8841                 sbuf_printf(sb, "not available");
 8842         } else {
 8843                 sbuf_printf(sb, "%d %d %d", val & 0xff, (val >> 8) & 0xff,
 8844                     (val >> 16) & 0xff);
 8845         }
 8846         rc = sbuf_finish(sb);
 8847         sbuf_delete(sb);
 8848 
 8849         return (rc);
 8850 }
 8851 
 8852 static int
 8853 sysctl_cctrl(SYSCTL_HANDLER_ARGS)
 8854 {
 8855         struct adapter *sc = arg1;
 8856         struct sbuf *sb;
 8857         int rc, i;
 8858         uint16_t incr[NMTUS][NCCTRL_WIN];
 8859         static const char *dec_fac[] = {
 8860                 "0.5", "0.5625", "0.625", "0.6875", "0.75", "0.8125", "0.875",
 8861                 "0.9375"
 8862         };
 8863 
 8864         rc = sysctl_wire_old_buffer(req, 0);
 8865         if (rc != 0)
 8866                 return (rc);
 8867 
 8868         sb = sbuf_new_for_sysctl(NULL, NULL, 4096, req);
 8869         if (sb == NULL)
 8870                 return (ENOMEM);
 8871 
 8872         mtx_lock(&sc->reg_lock);
 8873         if (hw_off_limits(sc))
 8874                 rc = ENXIO;
 8875         else
 8876                 t4_read_cong_tbl(sc, incr);
 8877         mtx_unlock(&sc->reg_lock);
 8878         if (rc)
 8879                 goto done;
 8880 
 8881         for (i = 0; i < NCCTRL_WIN; ++i) {
 8882                 sbuf_printf(sb, "%2d: %4u %4u %4u %4u %4u %4u %4u %4u\n", i,
 8883                     incr[0][i], incr[1][i], incr[2][i], incr[3][i], incr[4][i],
 8884                     incr[5][i], incr[6][i], incr[7][i]);
 8885                 sbuf_printf(sb, "%8u %4u %4u %4u %4u %4u %4u %4u %5u %s\n",
 8886                     incr[8][i], incr[9][i], incr[10][i], incr[11][i],
 8887                     incr[12][i], incr[13][i], incr[14][i], incr[15][i],
 8888                     sc->params.a_wnd[i], dec_fac[sc->params.b_wnd[i]]);
 8889         }
 8890 
 8891         rc = sbuf_finish(sb);
 8892 done:
 8893         sbuf_delete(sb);
 8894         return (rc);
 8895 }
 8896 
 8897 static const char *qname[CIM_NUM_IBQ + CIM_NUM_OBQ_T5] = {
 8898         "TP0", "TP1", "ULP", "SGE0", "SGE1", "NC-SI",   /* ibq's */
 8899         "ULP0", "ULP1", "ULP2", "ULP3", "SGE", "NC-SI", /* obq's */
 8900         "SGE0-RX", "SGE1-RX"    /* additional obq's (T5 onwards) */
 8901 };
 8902 
 8903 static int
 8904 sysctl_cim_ibq_obq(SYSCTL_HANDLER_ARGS)
 8905 {
 8906         struct adapter *sc = arg1;
 8907         struct sbuf *sb;
 8908         int rc, i, n, qid = arg2;
 8909         uint32_t *buf, *p;
 8910         char *qtype;
 8911         u_int cim_num_obq = sc->chip_params->cim_num_obq;
 8912 
 8913         KASSERT(qid >= 0 && qid < CIM_NUM_IBQ + cim_num_obq,
 8914             ("%s: bad qid %d\n", __func__, qid));
 8915 
 8916         if (qid < CIM_NUM_IBQ) {
 8917                 /* inbound queue */
 8918                 qtype = "IBQ";
 8919                 n = 4 * CIM_IBQ_SIZE;
 8920                 buf = malloc(n * sizeof(uint32_t), M_CXGBE, M_ZERO | M_WAITOK);
 8921                 mtx_lock(&sc->reg_lock);
 8922                 if (hw_off_limits(sc))
 8923                         rc = -ENXIO;
 8924                 else
 8925                         rc = t4_read_cim_ibq(sc, qid, buf, n);
 8926                 mtx_unlock(&sc->reg_lock);
 8927         } else {
 8928                 /* outbound queue */
 8929                 qtype = "OBQ";
 8930                 qid -= CIM_NUM_IBQ;
 8931                 n = 4 * cim_num_obq * CIM_OBQ_SIZE;
 8932                 buf = malloc(n * sizeof(uint32_t), M_CXGBE, M_ZERO | M_WAITOK);
 8933                 mtx_lock(&sc->reg_lock);
 8934                 if (hw_off_limits(sc))
 8935                         rc = -ENXIO;
 8936                 else
 8937                         rc = t4_read_cim_obq(sc, qid, buf, n);
 8938                 mtx_unlock(&sc->reg_lock);
 8939         }
 8940 
 8941         if (rc < 0) {
 8942                 rc = -rc;
 8943                 goto done;
 8944         }
 8945         n = rc * sizeof(uint32_t);      /* rc has # of words actually read */
 8946 
 8947         rc = sysctl_wire_old_buffer(req, 0);
 8948         if (rc != 0)
 8949                 goto done;
 8950 
 8951         sb = sbuf_new_for_sysctl(NULL, NULL, PAGE_SIZE, req);
 8952         if (sb == NULL) {
 8953                 rc = ENOMEM;
 8954                 goto done;
 8955         }
 8956 
 8957         sbuf_printf(sb, "%s%d %s", qtype , qid, qname[arg2]);
 8958         for (i = 0, p = buf; i < n; i += 16, p += 4)
 8959                 sbuf_printf(sb, "\n%#06x: %08x %08x %08x %08x", i, p[0], p[1],
 8960                     p[2], p[3]);
 8961 
 8962         rc = sbuf_finish(sb);
 8963         sbuf_delete(sb);
 8964 done:
 8965         free(buf, M_CXGBE);
 8966         return (rc);
 8967 }
 8968 
 8969 static void
 8970 sbuf_cim_la4(struct adapter *sc, struct sbuf *sb, uint32_t *buf, uint32_t cfg)
 8971 {
 8972         uint32_t *p;
 8973 
 8974         sbuf_printf(sb, "Status   Data      PC%s",
 8975             cfg & F_UPDBGLACAPTPCONLY ? "" :
 8976             "     LS0Stat  LS0Addr             LS0Data");
 8977 
 8978         for (p = buf; p <= &buf[sc->params.cim_la_size - 8]; p += 8) {
 8979                 if (cfg & F_UPDBGLACAPTPCONLY) {
 8980                         sbuf_printf(sb, "\n  %02x   %08x %08x", p[5] & 0xff,
 8981                             p[6], p[7]);
 8982                         sbuf_printf(sb, "\n  %02x   %02x%06x %02x%06x",
 8983                             (p[3] >> 8) & 0xff, p[3] & 0xff, p[4] >> 8,
 8984                             p[4] & 0xff, p[5] >> 8);
 8985                         sbuf_printf(sb, "\n  %02x   %x%07x %x%07x",
 8986                             (p[0] >> 4) & 0xff, p[0] & 0xf, p[1] >> 4,
 8987                             p[1] & 0xf, p[2] >> 4);
 8988                 } else {
 8989                         sbuf_printf(sb,
 8990                             "\n  %02x   %x%07x %x%07x %08x %08x "
 8991                             "%08x%08x%08x%08x",
 8992                             (p[0] >> 4) & 0xff, p[0] & 0xf, p[1] >> 4,
 8993                             p[1] & 0xf, p[2] >> 4, p[2] & 0xf, p[3], p[4], p[5],
 8994                             p[6], p[7]);
 8995                 }
 8996         }
 8997 }
 8998 
 8999 static void
 9000 sbuf_cim_la6(struct adapter *sc, struct sbuf *sb, uint32_t *buf, uint32_t cfg)
 9001 {
 9002         uint32_t *p;
 9003 
 9004         sbuf_printf(sb, "Status   Inst    Data      PC%s",
 9005             cfg & F_UPDBGLACAPTPCONLY ? "" :
 9006             "     LS0Stat  LS0Addr  LS0Data  LS1Stat  LS1Addr  LS1Data");
 9007 
 9008         for (p = buf; p <= &buf[sc->params.cim_la_size - 10]; p += 10) {
 9009                 if (cfg & F_UPDBGLACAPTPCONLY) {
 9010                         sbuf_printf(sb, "\n  %02x   %08x %08x %08x",
 9011                             p[3] & 0xff, p[2], p[1], p[0]);
 9012                         sbuf_printf(sb, "\n  %02x   %02x%06x %02x%06x %02x%06x",
 9013                             (p[6] >> 8) & 0xff, p[6] & 0xff, p[5] >> 8,
 9014                             p[5] & 0xff, p[4] >> 8, p[4] & 0xff, p[3] >> 8);
 9015                         sbuf_printf(sb, "\n  %02x   %04x%04x %04x%04x %04x%04x",
 9016                             (p[9] >> 16) & 0xff, p[9] & 0xffff, p[8] >> 16,
 9017                             p[8] & 0xffff, p[7] >> 16, p[7] & 0xffff,
 9018                             p[6] >> 16);
 9019                 } else {
 9020                         sbuf_printf(sb, "\n  %02x   %04x%04x %04x%04x %04x%04x "
 9021                             "%08x %08x %08x %08x %08x %08x",
 9022                             (p[9] >> 16) & 0xff,
 9023                             p[9] & 0xffff, p[8] >> 16,
 9024                             p[8] & 0xffff, p[7] >> 16,
 9025                             p[7] & 0xffff, p[6] >> 16,
 9026                             p[2], p[1], p[0], p[5], p[4], p[3]);
 9027                 }
 9028         }
 9029 }
 9030 
 9031 static int
 9032 sbuf_cim_la(struct adapter *sc, struct sbuf *sb, int flags)
 9033 {
 9034         uint32_t cfg, *buf;
 9035         int rc;
 9036 
 9037         MPASS(flags == M_WAITOK || flags == M_NOWAIT);
 9038         buf = malloc(sc->params.cim_la_size * sizeof(uint32_t), M_CXGBE,
 9039             M_ZERO | flags);
 9040         if (buf == NULL)
 9041                 return (ENOMEM);
 9042 
 9043         mtx_lock(&sc->reg_lock);
 9044         if (hw_off_limits(sc))
 9045                 rc = ENXIO;
 9046         else {
 9047                 rc = -t4_cim_read(sc, A_UP_UP_DBG_LA_CFG, 1, &cfg);
 9048                 if (rc == 0)
 9049                         rc = -t4_cim_read_la(sc, buf, NULL);
 9050         }
 9051         mtx_unlock(&sc->reg_lock);
 9052         if (rc == 0) {
 9053                 if (chip_id(sc) < CHELSIO_T6)
 9054                         sbuf_cim_la4(sc, sb, buf, cfg);
 9055                 else
 9056                         sbuf_cim_la6(sc, sb, buf, cfg);
 9057         }
 9058         free(buf, M_CXGBE);
 9059         return (rc);
 9060 }
 9061 
 9062 static int
 9063 sysctl_cim_la(SYSCTL_HANDLER_ARGS)
 9064 {
 9065         struct adapter *sc = arg1;
 9066         struct sbuf *sb;
 9067         int rc;
 9068 
 9069         rc = sysctl_wire_old_buffer(req, 0);
 9070         if (rc != 0)
 9071                 return (rc);
 9072         sb = sbuf_new_for_sysctl(NULL, NULL, 4096, req);
 9073         if (sb == NULL)
 9074                 return (ENOMEM);
 9075 
 9076         rc = sbuf_cim_la(sc, sb, M_WAITOK);
 9077         if (rc == 0)
 9078                 rc = sbuf_finish(sb);
 9079         sbuf_delete(sb);
 9080         return (rc);
 9081 }
 9082 
 9083 static void
 9084 dump_cim_regs(struct adapter *sc)
 9085 {
 9086         log(LOG_DEBUG, "%s: CIM debug regs1 %08x %08x %08x %08x %08x\n",
 9087             device_get_nameunit(sc->dev),
 9088             t4_read_reg(sc, A_EDC_H_BIST_USER_WDATA0),
 9089             t4_read_reg(sc, A_EDC_H_BIST_USER_WDATA1),
 9090             t4_read_reg(sc, A_EDC_H_BIST_USER_WDATA2),
 9091             t4_read_reg(sc, A_EDC_H_BIST_DATA_PATTERN),
 9092             t4_read_reg(sc, A_EDC_H_BIST_STATUS_RDATA));
 9093         log(LOG_DEBUG, "%s: CIM debug regs2 %08x %08x %08x %08x %08x\n",
 9094             device_get_nameunit(sc->dev),
 9095             t4_read_reg(sc, A_EDC_H_BIST_USER_WDATA0),
 9096             t4_read_reg(sc, A_EDC_H_BIST_USER_WDATA1),
 9097             t4_read_reg(sc, A_EDC_H_BIST_USER_WDATA0 + 0x800),
 9098             t4_read_reg(sc, A_EDC_H_BIST_USER_WDATA1 + 0x800),
 9099             t4_read_reg(sc, A_EDC_H_BIST_CMD_LEN));
 9100 }
 9101 
 9102 static void
 9103 dump_cimla(struct adapter *sc)
 9104 {
 9105         struct sbuf sb;
 9106         int rc;
 9107 
 9108         if (sbuf_new(&sb, NULL, 4096, SBUF_AUTOEXTEND) != &sb) {
 9109                 log(LOG_DEBUG, "%s: failed to generate CIM LA dump.\n",
 9110                     device_get_nameunit(sc->dev));
 9111                 return;
 9112         }
 9113         rc = sbuf_cim_la(sc, &sb, M_WAITOK);
 9114         if (rc == 0) {
 9115                 rc = sbuf_finish(&sb);
 9116                 if (rc == 0) {
 9117                         log(LOG_DEBUG, "%s: CIM LA dump follows.\n%s\n",
 9118                             device_get_nameunit(sc->dev), sbuf_data(&sb));
 9119                 }
 9120         }
 9121         sbuf_delete(&sb);
 9122 }
 9123 
 9124 void
 9125 t4_os_cim_err(struct adapter *sc)
 9126 {
 9127         atomic_set_int(&sc->error_flags, ADAP_CIM_ERR);
 9128 }
 9129 
 9130 static int
 9131 sysctl_cim_ma_la(SYSCTL_HANDLER_ARGS)
 9132 {
 9133         struct adapter *sc = arg1;
 9134         u_int i;
 9135         struct sbuf *sb;
 9136         uint32_t *buf, *p;
 9137         int rc;
 9138 
 9139         rc = sysctl_wire_old_buffer(req, 0);
 9140         if (rc != 0)
 9141                 return (rc);
 9142 
 9143         sb = sbuf_new_for_sysctl(NULL, NULL, 4096, req);
 9144         if (sb == NULL)
 9145                 return (ENOMEM);
 9146 
 9147         buf = malloc(2 * CIM_MALA_SIZE * 5 * sizeof(uint32_t), M_CXGBE,
 9148             M_ZERO | M_WAITOK);
 9149 
 9150         mtx_lock(&sc->reg_lock);
 9151         if (hw_off_limits(sc))
 9152                 rc = ENXIO;
 9153         else
 9154                 t4_cim_read_ma_la(sc, buf, buf + 5 * CIM_MALA_SIZE);
 9155         mtx_unlock(&sc->reg_lock);
 9156         if (rc)
 9157                 goto done;
 9158 
 9159         p = buf;
 9160         for (i = 0; i < CIM_MALA_SIZE; i++, p += 5) {
 9161                 sbuf_printf(sb, "\n%02x%08x%08x%08x%08x", p[4], p[3], p[2],
 9162                     p[1], p[0]);
 9163         }
 9164 
 9165         sbuf_printf(sb, "\n\nCnt ID Tag UE       Data       RDY VLD");
 9166         for (i = 0; i < CIM_MALA_SIZE; i++, p += 5) {
 9167                 sbuf_printf(sb, "\n%3u %2u  %x   %u %08x%08x  %u   %u",
 9168                     (p[2] >> 10) & 0xff, (p[2] >> 7) & 7,
 9169                     (p[2] >> 3) & 0xf, (p[2] >> 2) & 1,
 9170                     (p[1] >> 2) | ((p[2] & 3) << 30),
 9171                     (p[0] >> 2) | ((p[1] & 3) << 30), (p[0] >> 1) & 1,
 9172                     p[0] & 1);
 9173         }
 9174         rc = sbuf_finish(sb);
 9175 done:
 9176         sbuf_delete(sb);
 9177         free(buf, M_CXGBE);
 9178         return (rc);
 9179 }
 9180 
 9181 static int
 9182 sysctl_cim_pif_la(SYSCTL_HANDLER_ARGS)
 9183 {
 9184         struct adapter *sc = arg1;
 9185         u_int i;
 9186         struct sbuf *sb;
 9187         uint32_t *buf, *p;
 9188         int rc;
 9189 
 9190         rc = sysctl_wire_old_buffer(req, 0);
 9191         if (rc != 0)
 9192                 return (rc);
 9193 
 9194         sb = sbuf_new_for_sysctl(NULL, NULL, 4096, req);
 9195         if (sb == NULL)
 9196                 return (ENOMEM);
 9197 
 9198         buf = malloc(2 * CIM_PIFLA_SIZE * 6 * sizeof(uint32_t), M_CXGBE,
 9199             M_ZERO | M_WAITOK);
 9200 
 9201         mtx_lock(&sc->reg_lock);
 9202         if (hw_off_limits(sc))
 9203                 rc = ENXIO;
 9204         else
 9205                 t4_cim_read_pif_la(sc, buf, buf + 6 * CIM_PIFLA_SIZE, NULL, NULL);
 9206         mtx_unlock(&sc->reg_lock);
 9207         if (rc)
 9208                 goto done;
 9209 
 9210         p = buf;
 9211         sbuf_printf(sb, "Cntl ID DataBE   Addr                 Data");
 9212         for (i = 0; i < CIM_PIFLA_SIZE; i++, p += 6) {
 9213                 sbuf_printf(sb, "\n %02x  %02x  %04x  %08x %08x%08x%08x%08x",
 9214                     (p[5] >> 22) & 0xff, (p[5] >> 16) & 0x3f, p[5] & 0xffff,
 9215                     p[4], p[3], p[2], p[1], p[0]);
 9216         }
 9217 
 9218         sbuf_printf(sb, "\n\nCntl ID               Data");
 9219         for (i = 0; i < CIM_PIFLA_SIZE; i++, p += 6) {
 9220                 sbuf_printf(sb, "\n %02x  %02x %08x%08x%08x%08x",
 9221                     (p[4] >> 6) & 0xff, p[4] & 0x3f, p[3], p[2], p[1], p[0]);
 9222         }
 9223 
 9224         rc = sbuf_finish(sb);
 9225 done:
 9226         sbuf_delete(sb);
 9227         free(buf, M_CXGBE);
 9228         return (rc);
 9229 }
 9230 
 9231 static int
 9232 sysctl_cim_qcfg(SYSCTL_HANDLER_ARGS)
 9233 {
 9234         struct adapter *sc = arg1;
 9235         struct sbuf *sb;
 9236         int rc, i;
 9237         uint16_t base[CIM_NUM_IBQ + CIM_NUM_OBQ_T5];
 9238         uint16_t size[CIM_NUM_IBQ + CIM_NUM_OBQ_T5];
 9239         uint16_t thres[CIM_NUM_IBQ];
 9240         uint32_t obq_wr[2 * CIM_NUM_OBQ_T5], *wr = obq_wr;
 9241         uint32_t stat[4 * (CIM_NUM_IBQ + CIM_NUM_OBQ_T5)], *p = stat;
 9242         u_int cim_num_obq, ibq_rdaddr, obq_rdaddr, nq;
 9243 
 9244         cim_num_obq = sc->chip_params->cim_num_obq;
 9245         if (is_t4(sc)) {
 9246                 ibq_rdaddr = A_UP_IBQ_0_RDADDR;
 9247                 obq_rdaddr = A_UP_OBQ_0_REALADDR;
 9248         } else {
 9249                 ibq_rdaddr = A_UP_IBQ_0_SHADOW_RDADDR;
 9250                 obq_rdaddr = A_UP_OBQ_0_SHADOW_REALADDR;
 9251         }
 9252         nq = CIM_NUM_IBQ + cim_num_obq;
 9253 
 9254         mtx_lock(&sc->reg_lock);
 9255         if (hw_off_limits(sc))
 9256                 rc = ENXIO;
 9257         else {
 9258                 rc = -t4_cim_read(sc, ibq_rdaddr, 4 * nq, stat);
 9259                 if (rc == 0) {
 9260                         rc = -t4_cim_read(sc, obq_rdaddr, 2 * cim_num_obq,
 9261                             obq_wr);
 9262                         if (rc == 0)
 9263                                 t4_read_cimq_cfg(sc, base, size, thres);
 9264                 }
 9265         }
 9266         mtx_unlock(&sc->reg_lock);
 9267         if (rc)
 9268                 return (rc);
 9269 
 9270         rc = sysctl_wire_old_buffer(req, 0);
 9271         if (rc != 0)
 9272                 return (rc);
 9273 
 9274         sb = sbuf_new_for_sysctl(NULL, NULL, PAGE_SIZE, req);
 9275         if (sb == NULL)
 9276                 return (ENOMEM);
 9277 
 9278         sbuf_printf(sb,
 9279             "  Queue  Base  Size Thres  RdPtr WrPtr  SOP  EOP Avail");
 9280 
 9281         for (i = 0; i < CIM_NUM_IBQ; i++, p += 4)
 9282                 sbuf_printf(sb, "\n%7s %5x %5u %5u %6x  %4x %4u %4u %5u",
 9283                     qname[i], base[i], size[i], thres[i], G_IBQRDADDR(p[0]),
 9284                     G_IBQWRADDR(p[1]), G_QUESOPCNT(p[3]), G_QUEEOPCNT(p[3]),
 9285                     G_QUEREMFLITS(p[2]) * 16);
 9286         for ( ; i < nq; i++, p += 4, wr += 2)
 9287                 sbuf_printf(sb, "\n%7s %5x %5u %12x  %4x %4u %4u %5u", qname[i],
 9288                     base[i], size[i], G_QUERDADDR(p[0]) & 0x3fff,
 9289                     wr[0] - base[i], G_QUESOPCNT(p[3]), G_QUEEOPCNT(p[3]),
 9290                     G_QUEREMFLITS(p[2]) * 16);
 9291 
 9292         rc = sbuf_finish(sb);
 9293         sbuf_delete(sb);
 9294 
 9295         return (rc);
 9296 }
 9297 
 9298 static int
 9299 sysctl_cpl_stats(SYSCTL_HANDLER_ARGS)
 9300 {
 9301         struct adapter *sc = arg1;
 9302         struct sbuf *sb;
 9303         int rc;
 9304         struct tp_cpl_stats stats;
 9305 
 9306         rc = sysctl_wire_old_buffer(req, 0);
 9307         if (rc != 0)
 9308                 return (rc);
 9309 
 9310         sb = sbuf_new_for_sysctl(NULL, NULL, 256, req);
 9311         if (sb == NULL)
 9312                 return (ENOMEM);
 9313 
 9314         mtx_lock(&sc->reg_lock);
 9315         if (hw_off_limits(sc))
 9316                 rc = ENXIO;
 9317         else
 9318                 t4_tp_get_cpl_stats(sc, &stats, 0);
 9319         mtx_unlock(&sc->reg_lock);
 9320         if (rc)
 9321                 goto done;
 9322 
 9323         if (sc->chip_params->nchan > 2) {
 9324                 sbuf_printf(sb, "                 channel 0  channel 1"
 9325                     "  channel 2  channel 3");
 9326                 sbuf_printf(sb, "\nCPL requests:   %10u %10u %10u %10u",
 9327                     stats.req[0], stats.req[1], stats.req[2], stats.req[3]);
 9328                 sbuf_printf(sb, "\nCPL responses:  %10u %10u %10u %10u",
 9329                     stats.rsp[0], stats.rsp[1], stats.rsp[2], stats.rsp[3]);
 9330         } else {
 9331                 sbuf_printf(sb, "                 channel 0  channel 1");
 9332                 sbuf_printf(sb, "\nCPL requests:   %10u %10u",
 9333                     stats.req[0], stats.req[1]);
 9334                 sbuf_printf(sb, "\nCPL responses:  %10u %10u",
 9335                     stats.rsp[0], stats.rsp[1]);
 9336         }
 9337 
 9338         rc = sbuf_finish(sb);
 9339 done:
 9340         sbuf_delete(sb);
 9341         return (rc);
 9342 }
 9343 
 9344 static int
 9345 sysctl_ddp_stats(SYSCTL_HANDLER_ARGS)
 9346 {
 9347         struct adapter *sc = arg1;
 9348         struct sbuf *sb;
 9349         int rc;
 9350         struct tp_usm_stats stats;
 9351 
 9352         rc = sysctl_wire_old_buffer(req, 0);
 9353         if (rc != 0)
 9354                 return(rc);
 9355 
 9356         sb = sbuf_new_for_sysctl(NULL, NULL, 256, req);
 9357         if (sb == NULL)
 9358                 return (ENOMEM);
 9359 
 9360         mtx_lock(&sc->reg_lock);
 9361         if (hw_off_limits(sc))
 9362                 rc = ENXIO;
 9363         else
 9364                 t4_get_usm_stats(sc, &stats, 1);
 9365         mtx_unlock(&sc->reg_lock);
 9366         if (rc == 0) {
 9367                 sbuf_printf(sb, "Frames: %u\n", stats.frames);
 9368                 sbuf_printf(sb, "Octets: %ju\n", stats.octets);
 9369                 sbuf_printf(sb, "Drops:  %u", stats.drops);
 9370                 rc = sbuf_finish(sb);
 9371         }
 9372         sbuf_delete(sb);
 9373 
 9374         return (rc);
 9375 }
 9376 
 9377 static int
 9378 sysctl_tid_stats(SYSCTL_HANDLER_ARGS)
 9379 {
 9380         struct adapter *sc = arg1;
 9381         struct sbuf *sb;
 9382         int rc;
 9383         struct tp_tid_stats stats;
 9384 
 9385         rc = sysctl_wire_old_buffer(req, 0);
 9386         if (rc != 0)
 9387                 return(rc);
 9388 
 9389         sb = sbuf_new_for_sysctl(NULL, NULL, 256, req);
 9390         if (sb == NULL)
 9391                 return (ENOMEM);
 9392 
 9393         mtx_lock(&sc->reg_lock);
 9394         if (hw_off_limits(sc))
 9395                 rc = ENXIO;
 9396         else
 9397                 t4_tp_get_tid_stats(sc, &stats, 1);
 9398         mtx_unlock(&sc->reg_lock);
 9399         if (rc == 0) {
 9400                 sbuf_printf(sb, "Delete:     %u\n", stats.del);
 9401                 sbuf_printf(sb, "Invalidate: %u\n", stats.inv);
 9402                 sbuf_printf(sb, "Active:     %u\n", stats.act);
 9403                 sbuf_printf(sb, "Passive:    %u", stats.pas);
 9404                 rc = sbuf_finish(sb);
 9405         }
 9406         sbuf_delete(sb);
 9407 
 9408         return (rc);
 9409 }
 9410 
 9411 static const char * const devlog_level_strings[] = {
 9412         [FW_DEVLOG_LEVEL_EMERG]         = "EMERG",
 9413         [FW_DEVLOG_LEVEL_CRIT]          = "CRIT",
 9414         [FW_DEVLOG_LEVEL_ERR]           = "ERR",
 9415         [FW_DEVLOG_LEVEL_NOTICE]        = "NOTICE",
 9416         [FW_DEVLOG_LEVEL_INFO]          = "INFO",
 9417         [FW_DEVLOG_LEVEL_DEBUG]         = "DEBUG"
 9418 };
 9419 
 9420 static const char * const devlog_facility_strings[] = {
 9421         [FW_DEVLOG_FACILITY_CORE]       = "CORE",
 9422         [FW_DEVLOG_FACILITY_CF]         = "CF",
 9423         [FW_DEVLOG_FACILITY_SCHED]      = "SCHED",
 9424         [FW_DEVLOG_FACILITY_TIMER]      = "TIMER",
 9425         [FW_DEVLOG_FACILITY_RES]        = "RES",
 9426         [FW_DEVLOG_FACILITY_HW]         = "HW",
 9427         [FW_DEVLOG_FACILITY_FLR]        = "FLR",
 9428         [FW_DEVLOG_FACILITY_DMAQ]       = "DMAQ",
 9429         [FW_DEVLOG_FACILITY_PHY]        = "PHY",
 9430         [FW_DEVLOG_FACILITY_MAC]        = "MAC",
 9431         [FW_DEVLOG_FACILITY_PORT]       = "PORT",
 9432         [FW_DEVLOG_FACILITY_VI]         = "VI",
 9433         [FW_DEVLOG_FACILITY_FILTER]     = "FILTER",
 9434         [FW_DEVLOG_FACILITY_ACL]        = "ACL",
 9435         [FW_DEVLOG_FACILITY_TM]         = "TM",
 9436         [FW_DEVLOG_FACILITY_QFC]        = "QFC",
 9437         [FW_DEVLOG_FACILITY_DCB]        = "DCB",
 9438         [FW_DEVLOG_FACILITY_ETH]        = "ETH",
 9439         [FW_DEVLOG_FACILITY_OFLD]       = "OFLD",
 9440         [FW_DEVLOG_FACILITY_RI]         = "RI",
 9441         [FW_DEVLOG_FACILITY_ISCSI]      = "ISCSI",
 9442         [FW_DEVLOG_FACILITY_FCOE]       = "FCOE",
 9443         [FW_DEVLOG_FACILITY_FOISCSI]    = "FOISCSI",
 9444         [FW_DEVLOG_FACILITY_FOFCOE]     = "FOFCOE",
 9445         [FW_DEVLOG_FACILITY_CHNET]      = "CHNET",
 9446 };
 9447 
 9448 static int
 9449 sbuf_devlog(struct adapter *sc, struct sbuf *sb, int flags)
 9450 {
 9451         int i, j, rc, nentries, first = 0;
 9452         struct devlog_params *dparams = &sc->params.devlog;
 9453         struct fw_devlog_e *buf, *e;
 9454         uint64_t ftstamp = UINT64_MAX;
 9455 
 9456         if (dparams->addr == 0)
 9457                 return (ENXIO);
 9458 
 9459         MPASS(flags == M_WAITOK || flags == M_NOWAIT);
 9460         buf = malloc(dparams->size, M_CXGBE, M_ZERO | flags);
 9461         if (buf == NULL)
 9462                 return (ENOMEM);
 9463 
 9464         mtx_lock(&sc->reg_lock);
 9465         if (hw_off_limits(sc))
 9466                 rc = ENXIO;
 9467         else
 9468                 rc = read_via_memwin(sc, 1, dparams->addr, (void *)buf,
 9469                     dparams->size);
 9470         mtx_unlock(&sc->reg_lock);
 9471         if (rc != 0)
 9472                 goto done;
 9473 
 9474         nentries = dparams->size / sizeof(struct fw_devlog_e);
 9475         for (i = 0; i < nentries; i++) {
 9476                 e = &buf[i];
 9477 
 9478                 if (e->timestamp == 0)
 9479                         break;  /* end */
 9480 
 9481                 e->timestamp = be64toh(e->timestamp);
 9482                 e->seqno = be32toh(e->seqno);
 9483                 for (j = 0; j < 8; j++)
 9484                         e->params[j] = be32toh(e->params[j]);
 9485 
 9486                 if (e->timestamp < ftstamp) {
 9487                         ftstamp = e->timestamp;
 9488                         first = i;
 9489                 }
 9490         }
 9491 
 9492         if (buf[first].timestamp == 0)
 9493                 goto done;      /* nothing in the log */
 9494 
 9495         sbuf_printf(sb, "%10s  %15s  %8s  %8s  %s\n",
 9496             "Seq#", "Tstamp", "Level", "Facility", "Message");
 9497 
 9498         i = first;
 9499         do {
 9500                 e = &buf[i];
 9501                 if (e->timestamp == 0)
 9502                         break;  /* end */
 9503 
 9504                 sbuf_printf(sb, "%10d  %15ju  %8s  %8s  ",
 9505                     e->seqno, e->timestamp,
 9506                     (e->level < nitems(devlog_level_strings) ?
 9507                         devlog_level_strings[e->level] : "UNKNOWN"),
 9508                     (e->facility < nitems(devlog_facility_strings) ?
 9509                         devlog_facility_strings[e->facility] : "UNKNOWN"));
 9510                 sbuf_printf(sb, e->fmt, e->params[0], e->params[1],
 9511                     e->params[2], e->params[3], e->params[4],
 9512                     e->params[5], e->params[6], e->params[7]);
 9513 
 9514                 if (++i == nentries)
 9515                         i = 0;
 9516         } while (i != first);
 9517 done:
 9518         free(buf, M_CXGBE);
 9519         return (rc);
 9520 }
 9521 
 9522 static int
 9523 sysctl_devlog(SYSCTL_HANDLER_ARGS)
 9524 {
 9525         struct adapter *sc = arg1;
 9526         int rc;
 9527         struct sbuf *sb;
 9528 
 9529         rc = sysctl_wire_old_buffer(req, 0);
 9530         if (rc != 0)
 9531                 return (rc);
 9532         sb = sbuf_new_for_sysctl(NULL, NULL, 4096, req);
 9533         if (sb == NULL)
 9534                 return (ENOMEM);
 9535 
 9536         rc = sbuf_devlog(sc, sb, M_WAITOK);
 9537         if (rc == 0)
 9538                 rc = sbuf_finish(sb);
 9539         sbuf_delete(sb);
 9540         return (rc);
 9541 }
 9542 
 9543 static void
 9544 dump_devlog(struct adapter *sc)
 9545 {
 9546         int rc;
 9547         struct sbuf sb;
 9548 
 9549         if (sbuf_new(&sb, NULL, 4096, SBUF_AUTOEXTEND) != &sb) {
 9550                 log(LOG_DEBUG, "%s: failed to generate devlog dump.\n",
 9551                     device_get_nameunit(sc->dev));
 9552                 return;
 9553         }
 9554         rc = sbuf_devlog(sc, &sb, M_WAITOK);
 9555         if (rc == 0) {
 9556                 rc = sbuf_finish(&sb);
 9557                 if (rc == 0) {
 9558                         log(LOG_DEBUG, "%s: device log follows.\n%s",
 9559                             device_get_nameunit(sc->dev), sbuf_data(&sb));
 9560                 }
 9561         }
 9562         sbuf_delete(&sb);
 9563 }
 9564 
 9565 static int
 9566 sysctl_fcoe_stats(SYSCTL_HANDLER_ARGS)
 9567 {
 9568         struct adapter *sc = arg1;
 9569         struct sbuf *sb;
 9570         int rc;
 9571         struct tp_fcoe_stats stats[MAX_NCHAN];
 9572         int i, nchan = sc->chip_params->nchan;
 9573 
 9574         rc = sysctl_wire_old_buffer(req, 0);
 9575         if (rc != 0)
 9576                 return (rc);
 9577 
 9578         mtx_lock(&sc->reg_lock);
 9579         if (hw_off_limits(sc))
 9580                 rc = ENXIO;
 9581         else {
 9582                 for (i = 0; i < nchan; i++)
 9583                         t4_get_fcoe_stats(sc, i, &stats[i], 1);
 9584         }
 9585         mtx_unlock(&sc->reg_lock);
 9586         if (rc != 0)
 9587                 return (rc);
 9588 
 9589         sb = sbuf_new_for_sysctl(NULL, NULL, 256, req);
 9590         if (sb == NULL)
 9591                 return (ENOMEM);
 9592 
 9593         if (nchan > 2) {
 9594                 sbuf_printf(sb, "                   channel 0        channel 1"
 9595                     "        channel 2        channel 3");
 9596                 sbuf_printf(sb, "\noctetsDDP:  %16ju %16ju %16ju %16ju",
 9597                     stats[0].octets_ddp, stats[1].octets_ddp,
 9598                     stats[2].octets_ddp, stats[3].octets_ddp);
 9599                 sbuf_printf(sb, "\nframesDDP:  %16u %16u %16u %16u",
 9600                     stats[0].frames_ddp, stats[1].frames_ddp,
 9601                     stats[2].frames_ddp, stats[3].frames_ddp);
 9602                 sbuf_printf(sb, "\nframesDrop: %16u %16u %16u %16u",
 9603                     stats[0].frames_drop, stats[1].frames_drop,
 9604                     stats[2].frames_drop, stats[3].frames_drop);
 9605         } else {
 9606                 sbuf_printf(sb, "                   channel 0        channel 1");
 9607                 sbuf_printf(sb, "\noctetsDDP:  %16ju %16ju",
 9608                     stats[0].octets_ddp, stats[1].octets_ddp);
 9609                 sbuf_printf(sb, "\nframesDDP:  %16u %16u",
 9610                     stats[0].frames_ddp, stats[1].frames_ddp);
 9611                 sbuf_printf(sb, "\nframesDrop: %16u %16u",
 9612                     stats[0].frames_drop, stats[1].frames_drop);
 9613         }
 9614 
 9615         rc = sbuf_finish(sb);
 9616         sbuf_delete(sb);
 9617 
 9618         return (rc);
 9619 }
 9620 
 9621 static int
 9622 sysctl_hw_sched(SYSCTL_HANDLER_ARGS)
 9623 {
 9624         struct adapter *sc = arg1;
 9625         struct sbuf *sb;
 9626         int rc, i;
 9627         unsigned int map, kbps, ipg, mode;
 9628         unsigned int pace_tab[NTX_SCHED];
 9629 
 9630         rc = sysctl_wire_old_buffer(req, 0);
 9631         if (rc != 0)
 9632                 return (rc);
 9633 
 9634         sb = sbuf_new_for_sysctl(NULL, NULL, 512, req);
 9635         if (sb == NULL)
 9636                 return (ENOMEM);
 9637 
 9638         mtx_lock(&sc->reg_lock);
 9639         if (hw_off_limits(sc)) {
 9640                 rc = ENXIO;
 9641                 goto done;
 9642         }
 9643 
 9644         map = t4_read_reg(sc, A_TP_TX_MOD_QUEUE_REQ_MAP);
 9645         mode = G_TIMERMODE(t4_read_reg(sc, A_TP_MOD_CONFIG));
 9646         t4_read_pace_tbl(sc, pace_tab);
 9647 
 9648         sbuf_printf(sb, "Scheduler  Mode   Channel  Rate (Kbps)   "
 9649             "Class IPG (0.1 ns)   Flow IPG (us)");
 9650 
 9651         for (i = 0; i < NTX_SCHED; ++i, map >>= 2) {
 9652                 t4_get_tx_sched(sc, i, &kbps, &ipg, 1);
 9653                 sbuf_printf(sb, "\n    %u      %-5s     %u     ", i,
 9654                     (mode & (1 << i)) ? "flow" : "class", map & 3);
 9655                 if (kbps)
 9656                         sbuf_printf(sb, "%9u     ", kbps);
 9657                 else
 9658                         sbuf_printf(sb, " disabled     ");
 9659 
 9660                 if (ipg)
 9661                         sbuf_printf(sb, "%13u        ", ipg);
 9662                 else
 9663                         sbuf_printf(sb, "     disabled        ");
 9664 
 9665                 if (pace_tab[i])
 9666                         sbuf_printf(sb, "%10u", pace_tab[i]);
 9667                 else
 9668                         sbuf_printf(sb, "  disabled");
 9669         }
 9670         rc = sbuf_finish(sb);
 9671 done:
 9672         mtx_unlock(&sc->reg_lock);
 9673         sbuf_delete(sb);
 9674         return (rc);
 9675 }
 9676 
 9677 static int
 9678 sysctl_lb_stats(SYSCTL_HANDLER_ARGS)
 9679 {
 9680         struct adapter *sc = arg1;
 9681         struct sbuf *sb;
 9682         int rc, i, j;
 9683         uint64_t *p0, *p1;
 9684         struct lb_port_stats s[2];
 9685         static const char *stat_name[] = {
 9686                 "OctetsOK:", "FramesOK:", "BcastFrames:", "McastFrames:",
 9687                 "UcastFrames:", "ErrorFrames:", "Frames64:", "Frames65To127:",
 9688                 "Frames128To255:", "Frames256To511:", "Frames512To1023:",
 9689                 "Frames1024To1518:", "Frames1519ToMax:", "FramesDropped:",
 9690                 "BG0FramesDropped:", "BG1FramesDropped:", "BG2FramesDropped:",
 9691                 "BG3FramesDropped:", "BG0FramesTrunc:", "BG1FramesTrunc:",
 9692                 "BG2FramesTrunc:", "BG3FramesTrunc:"
 9693         };
 9694 
 9695         rc = sysctl_wire_old_buffer(req, 0);
 9696         if (rc != 0)
 9697                 return (rc);
 9698 
 9699         sb = sbuf_new_for_sysctl(NULL, NULL, 4096, req);
 9700         if (sb == NULL)
 9701                 return (ENOMEM);
 9702 
 9703         memset(s, 0, sizeof(s));
 9704 
 9705         for (i = 0; i < sc->chip_params->nchan; i += 2) {
 9706                 mtx_lock(&sc->reg_lock);
 9707                 if (hw_off_limits(sc))
 9708                         rc = ENXIO;
 9709                 else {
 9710                         t4_get_lb_stats(sc, i, &s[0]);
 9711                         t4_get_lb_stats(sc, i + 1, &s[1]);
 9712                 }
 9713                 mtx_unlock(&sc->reg_lock);
 9714                 if (rc != 0)
 9715                         break;
 9716 
 9717                 p0 = &s[0].octets;
 9718                 p1 = &s[1].octets;
 9719                 sbuf_printf(sb, "%s                       Loopback %u"
 9720                     "           Loopback %u", i == 0 ? "" : "\n", i, i + 1);
 9721 
 9722                 for (j = 0; j < nitems(stat_name); j++)
 9723                         sbuf_printf(sb, "\n%-17s %20ju %20ju", stat_name[j],
 9724                                    *p0++, *p1++);
 9725         }
 9726 
 9727         rc = sbuf_finish(sb);
 9728         sbuf_delete(sb);
 9729 
 9730         return (rc);
 9731 }
 9732 
 9733 static int
 9734 sysctl_linkdnrc(SYSCTL_HANDLER_ARGS)
 9735 {
 9736         int rc = 0;
 9737         struct port_info *pi = arg1;
 9738         struct link_config *lc = &pi->link_cfg;
 9739         struct sbuf *sb;
 9740 
 9741         rc = sysctl_wire_old_buffer(req, 0);
 9742         if (rc != 0)
 9743                 return(rc);
 9744         sb = sbuf_new_for_sysctl(NULL, NULL, 64, req);
 9745         if (sb == NULL)
 9746                 return (ENOMEM);
 9747 
 9748         if (lc->link_ok || lc->link_down_rc == 255)
 9749                 sbuf_printf(sb, "n/a");
 9750         else
 9751                 sbuf_printf(sb, "%s", t4_link_down_rc_str(lc->link_down_rc));
 9752 
 9753         rc = sbuf_finish(sb);
 9754         sbuf_delete(sb);
 9755 
 9756         return (rc);
 9757 }
 9758 
 9759 struct mem_desc {
 9760         u_int base;
 9761         u_int limit;
 9762         u_int idx;
 9763 };
 9764 
 9765 static int
 9766 mem_desc_cmp(const void *a, const void *b)
 9767 {
 9768         const u_int v1 = ((const struct mem_desc *)a)->base;
 9769         const u_int v2 = ((const struct mem_desc *)b)->base;
 9770 
 9771         if (v1 < v2)
 9772                 return (-1);
 9773         else if (v1 > v2)
 9774                 return (1);
 9775 
 9776         return (0);
 9777 }
 9778 
 9779 static void
 9780 mem_region_show(struct sbuf *sb, const char *name, unsigned int from,
 9781     unsigned int to)
 9782 {
 9783         unsigned int size;
 9784 
 9785         if (from == to)
 9786                 return;
 9787 
 9788         size = to - from + 1;
 9789         if (size == 0)
 9790                 return;
 9791 
 9792         /* XXX: need humanize_number(3) in libkern for a more readable 'size' */
 9793         sbuf_printf(sb, "%-15s %#x-%#x [%u]\n", name, from, to, size);
 9794 }
 9795 
 9796 static int
 9797 sysctl_meminfo(SYSCTL_HANDLER_ARGS)
 9798 {
 9799         struct adapter *sc = arg1;
 9800         struct sbuf *sb;
 9801         int rc, i, n;
 9802         uint32_t lo, hi, used, free, alloc;
 9803         static const char *memory[] = {
 9804                 "EDC0:", "EDC1:", "MC:", "MC0:", "MC1:", "HMA:"
 9805         };
 9806         static const char *region[] = {
 9807                 "DBQ contexts:", "IMSG contexts:", "FLM cache:", "TCBs:",
 9808                 "Pstructs:", "Timers:", "Rx FL:", "Tx FL:", "Pstruct FL:",
 9809                 "Tx payload:", "Rx payload:", "LE hash:", "iSCSI region:",
 9810                 "TDDP region:", "TPT region:", "STAG region:", "RQ region:",
 9811                 "RQUDP region:", "PBL region:", "TXPBL region:",
 9812                 "TLSKey region:", "DBVFIFO region:", "ULPRX state:",
 9813                 "ULPTX state:", "On-chip queues:",
 9814         };
 9815         struct mem_desc avail[4];
 9816         struct mem_desc mem[nitems(region) + 3];        /* up to 3 holes */
 9817         struct mem_desc *md = mem;
 9818 
 9819         rc = sysctl_wire_old_buffer(req, 0);
 9820         if (rc != 0)
 9821                 return (rc);
 9822 
 9823         sb = sbuf_new_for_sysctl(NULL, NULL, 4096, req);
 9824         if (sb == NULL)
 9825                 return (ENOMEM);
 9826 
 9827         for (i = 0; i < nitems(mem); i++) {
 9828                 mem[i].limit = 0;
 9829                 mem[i].idx = i;
 9830         }
 9831 
 9832         mtx_lock(&sc->reg_lock);
 9833         if (hw_off_limits(sc)) {
 9834                 rc = ENXIO;
 9835                 goto done;
 9836         }
 9837 
 9838         /* Find and sort the populated memory ranges */
 9839         i = 0;
 9840         lo = t4_read_reg(sc, A_MA_TARGET_MEM_ENABLE);
 9841         if (lo & F_EDRAM0_ENABLE) {
 9842                 hi = t4_read_reg(sc, A_MA_EDRAM0_BAR);
 9843                 avail[i].base = G_EDRAM0_BASE(hi) << 20;
 9844                 avail[i].limit = avail[i].base + (G_EDRAM0_SIZE(hi) << 20);
 9845                 avail[i].idx = 0;
 9846                 i++;
 9847         }
 9848         if (lo & F_EDRAM1_ENABLE) {
 9849                 hi = t4_read_reg(sc, A_MA_EDRAM1_BAR);
 9850                 avail[i].base = G_EDRAM1_BASE(hi) << 20;
 9851                 avail[i].limit = avail[i].base + (G_EDRAM1_SIZE(hi) << 20);
 9852                 avail[i].idx = 1;
 9853                 i++;
 9854         }
 9855         if (lo & F_EXT_MEM_ENABLE) {
 9856                 hi = t4_read_reg(sc, A_MA_EXT_MEMORY_BAR);
 9857                 avail[i].base = G_EXT_MEM_BASE(hi) << 20;
 9858                 avail[i].limit = avail[i].base + (G_EXT_MEM_SIZE(hi) << 20);
 9859                 avail[i].idx = is_t5(sc) ? 3 : 2;       /* Call it MC0 for T5 */
 9860                 i++;
 9861         }
 9862         if (is_t5(sc) && lo & F_EXT_MEM1_ENABLE) {
 9863                 hi = t4_read_reg(sc, A_MA_EXT_MEMORY1_BAR);
 9864                 avail[i].base = G_EXT_MEM1_BASE(hi) << 20;
 9865                 avail[i].limit = avail[i].base + (G_EXT_MEM1_SIZE(hi) << 20);
 9866                 avail[i].idx = 4;
 9867                 i++;
 9868         }
 9869         if (is_t6(sc) && lo & F_HMA_MUX) {
 9870                 hi = t4_read_reg(sc, A_MA_EXT_MEMORY1_BAR);
 9871                 avail[i].base = G_EXT_MEM1_BASE(hi) << 20;
 9872                 avail[i].limit = avail[i].base + (G_EXT_MEM1_SIZE(hi) << 20);
 9873                 avail[i].idx = 5;
 9874                 i++;
 9875         }
 9876         MPASS(i <= nitems(avail));
 9877         if (!i)                                    /* no memory available */
 9878                 goto done;
 9879         qsort(avail, i, sizeof(struct mem_desc), mem_desc_cmp);
 9880 
 9881         (md++)->base = t4_read_reg(sc, A_SGE_DBQ_CTXT_BADDR);
 9882         (md++)->base = t4_read_reg(sc, A_SGE_IMSG_CTXT_BADDR);
 9883         (md++)->base = t4_read_reg(sc, A_SGE_FLM_CACHE_BADDR);
 9884         (md++)->base = t4_read_reg(sc, A_TP_CMM_TCB_BASE);
 9885         (md++)->base = t4_read_reg(sc, A_TP_CMM_MM_BASE);
 9886         (md++)->base = t4_read_reg(sc, A_TP_CMM_TIMER_BASE);
 9887         (md++)->base = t4_read_reg(sc, A_TP_CMM_MM_RX_FLST_BASE);
 9888         (md++)->base = t4_read_reg(sc, A_TP_CMM_MM_TX_FLST_BASE);
 9889         (md++)->base = t4_read_reg(sc, A_TP_CMM_MM_PS_FLST_BASE);
 9890 
 9891         /* the next few have explicit upper bounds */
 9892         md->base = t4_read_reg(sc, A_TP_PMM_TX_BASE);
 9893         md->limit = md->base - 1 +
 9894                     t4_read_reg(sc, A_TP_PMM_TX_PAGE_SIZE) *
 9895                     G_PMTXMAXPAGE(t4_read_reg(sc, A_TP_PMM_TX_MAX_PAGE));
 9896         md++;
 9897 
 9898         md->base = t4_read_reg(sc, A_TP_PMM_RX_BASE);
 9899         md->limit = md->base - 1 +
 9900                     t4_read_reg(sc, A_TP_PMM_RX_PAGE_SIZE) *
 9901                     G_PMRXMAXPAGE(t4_read_reg(sc, A_TP_PMM_RX_MAX_PAGE));
 9902         md++;
 9903 
 9904         if (t4_read_reg(sc, A_LE_DB_CONFIG) & F_HASHEN) {
 9905                 if (chip_id(sc) <= CHELSIO_T5)
 9906                         md->base = t4_read_reg(sc, A_LE_DB_HASH_TID_BASE);
 9907                 else
 9908                         md->base = t4_read_reg(sc, A_LE_DB_HASH_TBL_BASE_ADDR);
 9909                 md->limit = 0;
 9910         } else {
 9911                 md->base = 0;
 9912                 md->idx = nitems(region);  /* hide it */
 9913         }
 9914         md++;
 9915 
 9916 #define ulp_region(reg) \
 9917         md->base = t4_read_reg(sc, A_ULP_ ## reg ## _LLIMIT);\
 9918         (md++)->limit = t4_read_reg(sc, A_ULP_ ## reg ## _ULIMIT)
 9919 
 9920         ulp_region(RX_ISCSI);
 9921         ulp_region(RX_TDDP);
 9922         ulp_region(TX_TPT);
 9923         ulp_region(RX_STAG);
 9924         ulp_region(RX_RQ);
 9925         ulp_region(RX_RQUDP);
 9926         ulp_region(RX_PBL);
 9927         ulp_region(TX_PBL);
 9928         if (sc->cryptocaps & FW_CAPS_CONFIG_TLSKEYS) {
 9929                 ulp_region(RX_TLS_KEY);
 9930         }
 9931 #undef ulp_region
 9932 
 9933         md->base = 0;
 9934         if (is_t4(sc))
 9935                 md->idx = nitems(region);
 9936         else {
 9937                 uint32_t size = 0;
 9938                 uint32_t sge_ctrl = t4_read_reg(sc, A_SGE_CONTROL2);
 9939                 uint32_t fifo_size = t4_read_reg(sc, A_SGE_DBVFIFO_SIZE);
 9940 
 9941                 if (is_t5(sc)) {
 9942                         if (sge_ctrl & F_VFIFO_ENABLE)
 9943                                 size = fifo_size << 2;
 9944                 } else
 9945                         size = G_T6_DBVFIFO_SIZE(fifo_size) << 6;
 9946 
 9947                 if (size) {
 9948                         md->base = t4_read_reg(sc, A_SGE_DBVFIFO_BADDR);
 9949                         md->limit = md->base + size - 1;
 9950                 } else
 9951                         md->idx = nitems(region);
 9952         }
 9953         md++;
 9954 
 9955         md->base = t4_read_reg(sc, A_ULP_RX_CTX_BASE);
 9956         md->limit = 0;
 9957         md++;
 9958         md->base = t4_read_reg(sc, A_ULP_TX_ERR_TABLE_BASE);
 9959         md->limit = 0;
 9960         md++;
 9961 
 9962         md->base = sc->vres.ocq.start;
 9963         if (sc->vres.ocq.size)
 9964                 md->limit = md->base + sc->vres.ocq.size - 1;
 9965         else
 9966                 md->idx = nitems(region);  /* hide it */
 9967         md++;
 9968 
 9969         /* add any address-space holes, there can be up to 3 */
 9970         for (n = 0; n < i - 1; n++)
 9971                 if (avail[n].limit < avail[n + 1].base)
 9972                         (md++)->base = avail[n].limit;
 9973         if (avail[n].limit)
 9974                 (md++)->base = avail[n].limit;
 9975 
 9976         n = md - mem;
 9977         MPASS(n <= nitems(mem));
 9978         qsort(mem, n, sizeof(struct mem_desc), mem_desc_cmp);
 9979 
 9980         for (lo = 0; lo < i; lo++)
 9981                 mem_region_show(sb, memory[avail[lo].idx], avail[lo].base,
 9982                                 avail[lo].limit - 1);
 9983 
 9984         sbuf_printf(sb, "\n");
 9985         for (i = 0; i < n; i++) {
 9986                 if (mem[i].idx >= nitems(region))
 9987                         continue;                        /* skip holes */
 9988                 if (!mem[i].limit)
 9989                         mem[i].limit = i < n - 1 ? mem[i + 1].base - 1 : ~0;
 9990                 mem_region_show(sb, region[mem[i].idx], mem[i].base,
 9991                                 mem[i].limit);
 9992         }
 9993 
 9994         sbuf_printf(sb, "\n");
 9995         lo = t4_read_reg(sc, A_CIM_SDRAM_BASE_ADDR);
 9996         hi = t4_read_reg(sc, A_CIM_SDRAM_ADDR_SIZE) + lo - 1;
 9997         mem_region_show(sb, "uP RAM:", lo, hi);
 9998 
 9999         lo = t4_read_reg(sc, A_CIM_EXTMEM2_BASE_ADDR);
10000         hi = t4_read_reg(sc, A_CIM_EXTMEM2_ADDR_SIZE) + lo - 1;
10001         mem_region_show(sb, "uP Extmem2:", lo, hi);
10002 
10003         lo = t4_read_reg(sc, A_TP_PMM_RX_MAX_PAGE);
10004         for (i = 0, free = 0; i < 2; i++)
10005                 free += G_FREERXPAGECOUNT(t4_read_reg(sc, A_TP_FLM_FREE_RX_CNT));
10006         sbuf_printf(sb, "\n%u Rx pages (%u free) of size %uKiB for %u channels\n",
10007                    G_PMRXMAXPAGE(lo), free,
10008                    t4_read_reg(sc, A_TP_PMM_RX_PAGE_SIZE) >> 10,
10009                    (lo & F_PMRXNUMCHN) ? 2 : 1);
10010 
10011         lo = t4_read_reg(sc, A_TP_PMM_TX_MAX_PAGE);
10012         hi = t4_read_reg(sc, A_TP_PMM_TX_PAGE_SIZE);
10013         for (i = 0, free = 0; i < 4; i++)
10014                 free += G_FREETXPAGECOUNT(t4_read_reg(sc, A_TP_FLM_FREE_TX_CNT));
10015         sbuf_printf(sb, "%u Tx pages (%u free) of size %u%ciB for %u channels\n",
10016                    G_PMTXMAXPAGE(lo), free,
10017                    hi >= (1 << 20) ? (hi >> 20) : (hi >> 10),
10018                    hi >= (1 << 20) ? 'M' : 'K', 1 << G_PMTXNUMCHN(lo));
10019         sbuf_printf(sb, "%u p-structs (%u free)\n",
10020                    t4_read_reg(sc, A_TP_CMM_MM_MAX_PSTRUCT),
10021                    G_FREEPSTRUCTCOUNT(t4_read_reg(sc, A_TP_FLM_FREE_PS_CNT)));
10022 
10023         for (i = 0; i < 4; i++) {
10024                 if (chip_id(sc) > CHELSIO_T5)
10025                         lo = t4_read_reg(sc, A_MPS_RX_MAC_BG_PG_CNT0 + i * 4);
10026                 else
10027                         lo = t4_read_reg(sc, A_MPS_RX_PG_RSV0 + i * 4);
10028                 if (is_t5(sc)) {
10029                         used = G_T5_USED(lo);
10030                         alloc = G_T5_ALLOC(lo);
10031                 } else {
10032                         used = G_USED(lo);
10033                         alloc = G_ALLOC(lo);
10034                 }
10035                 /* For T6 these are MAC buffer groups */
10036                 sbuf_printf(sb, "\nPort %d using %u pages out of %u allocated",
10037                     i, used, alloc);
10038         }
10039         for (i = 0; i < sc->chip_params->nchan; i++) {
10040                 if (chip_id(sc) > CHELSIO_T5)
10041                         lo = t4_read_reg(sc, A_MPS_RX_LPBK_BG_PG_CNT0 + i * 4);
10042                 else
10043                         lo = t4_read_reg(sc, A_MPS_RX_PG_RSV4 + i * 4);
10044                 if (is_t5(sc)) {
10045                         used = G_T5_USED(lo);
10046                         alloc = G_T5_ALLOC(lo);
10047                 } else {
10048                         used = G_USED(lo);
10049                         alloc = G_ALLOC(lo);
10050                 }
10051                 /* For T6 these are MAC buffer groups */
10052                 sbuf_printf(sb,
10053                     "\nLoopback %d using %u pages out of %u allocated",
10054                     i, used, alloc);
10055         }
10056 done:
10057         mtx_unlock(&sc->reg_lock);
10058         if (rc == 0)
10059                 rc = sbuf_finish(sb);
10060         sbuf_delete(sb);
10061         return (rc);
10062 }
10063 
10064 static inline void
10065 tcamxy2valmask(uint64_t x, uint64_t y, uint8_t *addr, uint64_t *mask)
10066 {
10067         *mask = x | y;
10068         y = htobe64(y);
10069         memcpy(addr, (char *)&y + 2, ETHER_ADDR_LEN);
10070 }
10071 
10072 static int
10073 sysctl_mps_tcam(SYSCTL_HANDLER_ARGS)
10074 {
10075         struct adapter *sc = arg1;
10076         struct sbuf *sb;
10077         int rc, i;
10078 
10079         MPASS(chip_id(sc) <= CHELSIO_T5);
10080 
10081         rc = sysctl_wire_old_buffer(req, 0);
10082         if (rc != 0)
10083                 return (rc);
10084 
10085         sb = sbuf_new_for_sysctl(NULL, NULL, 4096, req);
10086         if (sb == NULL)
10087                 return (ENOMEM);
10088 
10089         sbuf_printf(sb,
10090             "Idx  Ethernet address     Mask     Vld Ports PF"
10091             "  VF              Replication             P0 P1 P2 P3  ML");
10092         for (i = 0; i < sc->chip_params->mps_tcam_size; i++) {
10093                 uint64_t tcamx, tcamy, mask;
10094                 uint32_t cls_lo, cls_hi;
10095                 uint8_t addr[ETHER_ADDR_LEN];
10096 
10097                 mtx_lock(&sc->reg_lock);
10098                 if (hw_off_limits(sc))
10099                         rc = ENXIO;
10100                 else {
10101                         tcamy = t4_read_reg64(sc, MPS_CLS_TCAM_Y_L(i));
10102                         tcamx = t4_read_reg64(sc, MPS_CLS_TCAM_X_L(i));
10103                 }
10104                 mtx_unlock(&sc->reg_lock);
10105                 if (rc != 0)
10106                         break;
10107                 if (tcamx & tcamy)
10108                         continue;
10109                 tcamxy2valmask(tcamx, tcamy, addr, &mask);
10110                 mtx_lock(&sc->reg_lock);
10111                 if (hw_off_limits(sc))
10112                         rc = ENXIO;
10113                 else {
10114                         cls_lo = t4_read_reg(sc, MPS_CLS_SRAM_L(i));
10115                         cls_hi = t4_read_reg(sc, MPS_CLS_SRAM_H(i));
10116                 }
10117                 mtx_unlock(&sc->reg_lock);
10118                 if (rc != 0)
10119                         break;
10120                 sbuf_printf(sb, "\n%3u %02x:%02x:%02x:%02x:%02x:%02x %012jx"
10121                            "  %c   %#x%4u%4d", i, addr[0], addr[1], addr[2],
10122                            addr[3], addr[4], addr[5], (uintmax_t)mask,
10123                            (cls_lo & F_SRAM_VLD) ? 'Y' : 'N',
10124                            G_PORTMAP(cls_hi), G_PF(cls_lo),
10125                            (cls_lo & F_VF_VALID) ? G_VF(cls_lo) : -1);
10126 
10127                 if (cls_lo & F_REPLICATE) {
10128                         struct fw_ldst_cmd ldst_cmd;
10129 
10130                         memset(&ldst_cmd, 0, sizeof(ldst_cmd));
10131                         ldst_cmd.op_to_addrspace =
10132                             htobe32(V_FW_CMD_OP(FW_LDST_CMD) |
10133                                 F_FW_CMD_REQUEST | F_FW_CMD_READ |
10134                                 V_FW_LDST_CMD_ADDRSPACE(FW_LDST_ADDRSPC_MPS));
10135                         ldst_cmd.cycles_to_len16 = htobe32(FW_LEN16(ldst_cmd));
10136                         ldst_cmd.u.mps.rplc.fid_idx =
10137                             htobe16(V_FW_LDST_CMD_FID(FW_LDST_MPS_RPLC) |
10138                                 V_FW_LDST_CMD_IDX(i));
10139 
10140                         rc = begin_synchronized_op(sc, NULL, SLEEP_OK | INTR_OK,
10141                             "t4mps");
10142                         if (rc)
10143                                 break;
10144                         if (hw_off_limits(sc))
10145                                 rc = ENXIO;
10146                         else
10147                                 rc = -t4_wr_mbox(sc, sc->mbox, &ldst_cmd,
10148                                     sizeof(ldst_cmd), &ldst_cmd);
10149                         end_synchronized_op(sc, 0);
10150                         if (rc != 0)
10151                                 break;
10152                         else {
10153                                 sbuf_printf(sb, " %08x %08x %08x %08x",
10154                                     be32toh(ldst_cmd.u.mps.rplc.rplc127_96),
10155                                     be32toh(ldst_cmd.u.mps.rplc.rplc95_64),
10156                                     be32toh(ldst_cmd.u.mps.rplc.rplc63_32),
10157                                     be32toh(ldst_cmd.u.mps.rplc.rplc31_0));
10158                         }
10159                 } else
10160                         sbuf_printf(sb, "%36s", "");
10161 
10162                 sbuf_printf(sb, "%4u%3u%3u%3u %#3x", G_SRAM_PRIO0(cls_lo),
10163                     G_SRAM_PRIO1(cls_lo), G_SRAM_PRIO2(cls_lo),
10164                     G_SRAM_PRIO3(cls_lo), (cls_lo >> S_MULTILISTEN0) & 0xf);
10165         }
10166 
10167         if (rc)
10168                 (void) sbuf_finish(sb);
10169         else
10170                 rc = sbuf_finish(sb);
10171         sbuf_delete(sb);
10172 
10173         return (rc);
10174 }
10175 
10176 static int
10177 sysctl_mps_tcam_t6(SYSCTL_HANDLER_ARGS)
10178 {
10179         struct adapter *sc = arg1;
10180         struct sbuf *sb;
10181         int rc, i;
10182 
10183         MPASS(chip_id(sc) > CHELSIO_T5);
10184 
10185         rc = sysctl_wire_old_buffer(req, 0);
10186         if (rc != 0)
10187                 return (rc);
10188 
10189         sb = sbuf_new_for_sysctl(NULL, NULL, 4096, req);
10190         if (sb == NULL)
10191                 return (ENOMEM);
10192 
10193         sbuf_printf(sb, "Idx  Ethernet address     Mask       VNI   Mask"
10194             "   IVLAN Vld DIP_Hit   Lookup  Port Vld Ports PF  VF"
10195             "                           Replication"
10196             "                                    P0 P1 P2 P3  ML\n");
10197 
10198         for (i = 0; i < sc->chip_params->mps_tcam_size; i++) {
10199                 uint8_t dip_hit, vlan_vld, lookup_type, port_num;
10200                 uint16_t ivlan;
10201                 uint64_t tcamx, tcamy, val, mask;
10202                 uint32_t cls_lo, cls_hi, ctl, data2, vnix, vniy;
10203                 uint8_t addr[ETHER_ADDR_LEN];
10204 
10205                 ctl = V_CTLREQID(1) | V_CTLCMDTYPE(0) | V_CTLXYBITSEL(0);
10206                 if (i < 256)
10207                         ctl |= V_CTLTCAMINDEX(i) | V_CTLTCAMSEL(0);
10208                 else
10209                         ctl |= V_CTLTCAMINDEX(i - 256) | V_CTLTCAMSEL(1);
10210                 mtx_lock(&sc->reg_lock);
10211                 if (hw_off_limits(sc))
10212                         rc = ENXIO;
10213                 else {
10214                         t4_write_reg(sc, A_MPS_CLS_TCAM_DATA2_CTL, ctl);
10215                         val = t4_read_reg(sc, A_MPS_CLS_TCAM_RDATA1_REQ_ID1);
10216                         tcamy = G_DMACH(val) << 32;
10217                         tcamy |= t4_read_reg(sc, A_MPS_CLS_TCAM_RDATA0_REQ_ID1);
10218                         data2 = t4_read_reg(sc, A_MPS_CLS_TCAM_RDATA2_REQ_ID1);
10219                 }
10220                 mtx_unlock(&sc->reg_lock);
10221                 if (rc != 0)
10222                         break;
10223 
10224                 lookup_type = G_DATALKPTYPE(data2);
10225                 port_num = G_DATAPORTNUM(data2);
10226                 if (lookup_type && lookup_type != M_DATALKPTYPE) {
10227                         /* Inner header VNI */
10228                         vniy = ((data2 & F_DATAVIDH2) << 23) |
10229                                        (G_DATAVIDH1(data2) << 16) | G_VIDL(val);
10230                         dip_hit = data2 & F_DATADIPHIT;
10231                         vlan_vld = 0;
10232                 } else {
10233                         vniy = 0;
10234                         dip_hit = 0;
10235                         vlan_vld = data2 & F_DATAVIDH2;
10236                         ivlan = G_VIDL(val);
10237                 }
10238 
10239                 ctl |= V_CTLXYBITSEL(1);
10240                 mtx_lock(&sc->reg_lock);
10241                 if (hw_off_limits(sc))
10242                         rc = ENXIO;
10243                 else {
10244                         t4_write_reg(sc, A_MPS_CLS_TCAM_DATA2_CTL, ctl);
10245                         val = t4_read_reg(sc, A_MPS_CLS_TCAM_RDATA1_REQ_ID1);
10246                         tcamx = G_DMACH(val) << 32;
10247                         tcamx |= t4_read_reg(sc, A_MPS_CLS_TCAM_RDATA0_REQ_ID1);
10248                         data2 = t4_read_reg(sc, A_MPS_CLS_TCAM_RDATA2_REQ_ID1);
10249                 }
10250                 mtx_unlock(&sc->reg_lock);
10251                 if (rc != 0)
10252                         break;
10253 
10254                 if (lookup_type && lookup_type != M_DATALKPTYPE) {
10255                         /* Inner header VNI mask */
10256                         vnix = ((data2 & F_DATAVIDH2) << 23) |
10257                                (G_DATAVIDH1(data2) << 16) | G_VIDL(val);
10258                 } else
10259                         vnix = 0;
10260 
10261                 if (tcamx & tcamy)
10262                         continue;
10263                 tcamxy2valmask(tcamx, tcamy, addr, &mask);
10264 
10265                 mtx_lock(&sc->reg_lock);
10266                 if (hw_off_limits(sc))
10267                         rc = ENXIO;
10268                 else {
10269                         cls_lo = t4_read_reg(sc, MPS_CLS_SRAM_L(i));
10270                         cls_hi = t4_read_reg(sc, MPS_CLS_SRAM_H(i));
10271                 }
10272                 mtx_unlock(&sc->reg_lock);
10273                 if (rc != 0)
10274                         break;
10275 
10276                 if (lookup_type && lookup_type != M_DATALKPTYPE) {
10277                         sbuf_printf(sb, "\n%3u %02x:%02x:%02x:%02x:%02x:%02x "
10278                             "%012jx %06x %06x    -    -   %3c"
10279                             "        I  %4x   %3c   %#x%4u%4d", i, addr[0],
10280                             addr[1], addr[2], addr[3], addr[4], addr[5],
10281                             (uintmax_t)mask, vniy, vnix, dip_hit ? 'Y' : 'N',
10282                             port_num, cls_lo & F_T6_SRAM_VLD ? 'Y' : 'N',
10283                             G_PORTMAP(cls_hi), G_T6_PF(cls_lo),
10284                             cls_lo & F_T6_VF_VALID ? G_T6_VF(cls_lo) : -1);
10285                 } else {
10286                         sbuf_printf(sb, "\n%3u %02x:%02x:%02x:%02x:%02x:%02x "
10287                             "%012jx    -       -   ", i, addr[0], addr[1],
10288                             addr[2], addr[3], addr[4], addr[5],
10289                             (uintmax_t)mask);
10290 
10291                         if (vlan_vld)
10292                                 sbuf_printf(sb, "%4u   Y     ", ivlan);
10293                         else
10294                                 sbuf_printf(sb, "  -    N     ");
10295 
10296                         sbuf_printf(sb, "-      %3c  %4x   %3c   %#x%4u%4d",
10297                             lookup_type ? 'I' : 'O', port_num,
10298                             cls_lo & F_T6_SRAM_VLD ? 'Y' : 'N',
10299                             G_PORTMAP(cls_hi), G_T6_PF(cls_lo),
10300                             cls_lo & F_T6_VF_VALID ? G_T6_VF(cls_lo) : -1);
10301                 }
10302 
10303 
10304                 if (cls_lo & F_T6_REPLICATE) {
10305                         struct fw_ldst_cmd ldst_cmd;
10306 
10307                         memset(&ldst_cmd, 0, sizeof(ldst_cmd));
10308                         ldst_cmd.op_to_addrspace =
10309                             htobe32(V_FW_CMD_OP(FW_LDST_CMD) |
10310                                 F_FW_CMD_REQUEST | F_FW_CMD_READ |
10311                                 V_FW_LDST_CMD_ADDRSPACE(FW_LDST_ADDRSPC_MPS));
10312                         ldst_cmd.cycles_to_len16 = htobe32(FW_LEN16(ldst_cmd));
10313                         ldst_cmd.u.mps.rplc.fid_idx =
10314                             htobe16(V_FW_LDST_CMD_FID(FW_LDST_MPS_RPLC) |
10315                                 V_FW_LDST_CMD_IDX(i));
10316 
10317                         rc = begin_synchronized_op(sc, NULL, SLEEP_OK | INTR_OK,
10318                             "t6mps");
10319                         if (rc)
10320                                 break;
10321                         if (hw_off_limits(sc))
10322                                 rc = ENXIO;
10323                         else
10324                                 rc = -t4_wr_mbox(sc, sc->mbox, &ldst_cmd,
10325                                     sizeof(ldst_cmd), &ldst_cmd);
10326                         end_synchronized_op(sc, 0);
10327                         if (rc != 0)
10328                                 break;
10329                         else {
10330                                 sbuf_printf(sb, " %08x %08x %08x %08x"
10331                                     " %08x %08x %08x %08x",
10332                                     be32toh(ldst_cmd.u.mps.rplc.rplc255_224),
10333                                     be32toh(ldst_cmd.u.mps.rplc.rplc223_192),
10334                                     be32toh(ldst_cmd.u.mps.rplc.rplc191_160),
10335                                     be32toh(ldst_cmd.u.mps.rplc.rplc159_128),
10336                                     be32toh(ldst_cmd.u.mps.rplc.rplc127_96),
10337                                     be32toh(ldst_cmd.u.mps.rplc.rplc95_64),
10338                                     be32toh(ldst_cmd.u.mps.rplc.rplc63_32),
10339                                     be32toh(ldst_cmd.u.mps.rplc.rplc31_0));
10340                         }
10341                 } else
10342                         sbuf_printf(sb, "%72s", "");
10343 
10344                 sbuf_printf(sb, "%4u%3u%3u%3u %#x",
10345                     G_T6_SRAM_PRIO0(cls_lo), G_T6_SRAM_PRIO1(cls_lo),
10346                     G_T6_SRAM_PRIO2(cls_lo), G_T6_SRAM_PRIO3(cls_lo),
10347                     (cls_lo >> S_T6_MULTILISTEN0) & 0xf);
10348         }
10349 
10350         if (rc)
10351                 (void) sbuf_finish(sb);
10352         else
10353                 rc = sbuf_finish(sb);
10354         sbuf_delete(sb);
10355 
10356         return (rc);
10357 }
10358 
10359 static int
10360 sysctl_path_mtus(SYSCTL_HANDLER_ARGS)
10361 {
10362         struct adapter *sc = arg1;
10363         struct sbuf *sb;
10364         int rc;
10365         uint16_t mtus[NMTUS];
10366 
10367         rc = sysctl_wire_old_buffer(req, 0);
10368         if (rc != 0)
10369                 return (rc);
10370 
10371         mtx_lock(&sc->reg_lock);
10372         if (hw_off_limits(sc))
10373                 rc = ENXIO;
10374         else
10375                 t4_read_mtu_tbl(sc, mtus, NULL);
10376         mtx_unlock(&sc->reg_lock);
10377         if (rc != 0)
10378                 return (rc);
10379 
10380         sb = sbuf_new_for_sysctl(NULL, NULL, 256, req);
10381         if (sb == NULL)
10382                 return (ENOMEM);
10383 
10384         sbuf_printf(sb, "%u %u %u %u %u %u %u %u %u %u %u %u %u %u %u %u",
10385             mtus[0], mtus[1], mtus[2], mtus[3], mtus[4], mtus[5], mtus[6],
10386             mtus[7], mtus[8], mtus[9], mtus[10], mtus[11], mtus[12], mtus[13],
10387             mtus[14], mtus[15]);
10388 
10389         rc = sbuf_finish(sb);
10390         sbuf_delete(sb);
10391 
10392         return (rc);
10393 }
10394 
10395 static int
10396 sysctl_pm_stats(SYSCTL_HANDLER_ARGS)
10397 {
10398         struct adapter *sc = arg1;
10399         struct sbuf *sb;
10400         int rc, i;
10401         uint32_t tx_cnt[MAX_PM_NSTATS], rx_cnt[MAX_PM_NSTATS];
10402         uint64_t tx_cyc[MAX_PM_NSTATS], rx_cyc[MAX_PM_NSTATS];
10403         static const char *tx_stats[MAX_PM_NSTATS] = {
10404                 "Read:", "Write bypass:", "Write mem:", "Bypass + mem:",
10405                 "Tx FIFO wait", NULL, "Tx latency"
10406         };
10407         static const char *rx_stats[MAX_PM_NSTATS] = {
10408                 "Read:", "Write bypass:", "Write mem:", "Flush:",
10409                 "Rx FIFO wait", NULL, "Rx latency"
10410         };
10411 
10412         rc = sysctl_wire_old_buffer(req, 0);
10413         if (rc != 0)
10414                 return (rc);
10415 
10416         mtx_lock(&sc->reg_lock);
10417         if (hw_off_limits(sc))
10418                 rc = ENXIO;
10419         else {
10420                 t4_pmtx_get_stats(sc, tx_cnt, tx_cyc);
10421                 t4_pmrx_get_stats(sc, rx_cnt, rx_cyc);
10422         }
10423         mtx_unlock(&sc->reg_lock);
10424         if (rc != 0)
10425                 return (rc);
10426 
10427         sb = sbuf_new_for_sysctl(NULL, NULL, 256, req);
10428         if (sb == NULL)
10429                 return (ENOMEM);
10430 
10431         sbuf_printf(sb, "                Tx pcmds             Tx bytes");
10432         for (i = 0; i < 4; i++) {
10433                 sbuf_printf(sb, "\n%-13s %10u %20ju", tx_stats[i], tx_cnt[i],
10434                     tx_cyc[i]);
10435         }
10436 
10437         sbuf_printf(sb, "\n                Rx pcmds             Rx bytes");
10438         for (i = 0; i < 4; i++) {
10439                 sbuf_printf(sb, "\n%-13s %10u %20ju", rx_stats[i], rx_cnt[i],
10440                     rx_cyc[i]);
10441         }
10442 
10443         if (chip_id(sc) > CHELSIO_T5) {
10444                 sbuf_printf(sb,
10445                     "\n              Total wait      Total occupancy");
10446                 sbuf_printf(sb, "\n%-13s %10u %20ju", tx_stats[i], tx_cnt[i],
10447                     tx_cyc[i]);
10448                 sbuf_printf(sb, "\n%-13s %10u %20ju", rx_stats[i], rx_cnt[i],
10449                     rx_cyc[i]);
10450 
10451                 i += 2;
10452                 MPASS(i < nitems(tx_stats));
10453 
10454                 sbuf_printf(sb,
10455                     "\n                   Reads           Total wait");
10456                 sbuf_printf(sb, "\n%-13s %10u %20ju", tx_stats[i], tx_cnt[i],
10457                     tx_cyc[i]);
10458                 sbuf_printf(sb, "\n%-13s %10u %20ju", rx_stats[i], rx_cnt[i],
10459                     rx_cyc[i]);
10460         }
10461 
10462         rc = sbuf_finish(sb);
10463         sbuf_delete(sb);
10464 
10465         return (rc);
10466 }
10467 
10468 static int
10469 sysctl_rdma_stats(SYSCTL_HANDLER_ARGS)
10470 {
10471         struct adapter *sc = arg1;
10472         struct sbuf *sb;
10473         int rc;
10474         struct tp_rdma_stats stats;
10475 
10476         rc = sysctl_wire_old_buffer(req, 0);
10477         if (rc != 0)
10478                 return (rc);
10479 
10480         mtx_lock(&sc->reg_lock);
10481         if (hw_off_limits(sc))
10482                 rc = ENXIO;
10483         else
10484                 t4_tp_get_rdma_stats(sc, &stats, 0);
10485         mtx_unlock(&sc->reg_lock);
10486         if (rc != 0)
10487                 return (rc);
10488 
10489         sb = sbuf_new_for_sysctl(NULL, NULL, 256, req);
10490         if (sb == NULL)
10491                 return (ENOMEM);
10492 
10493         sbuf_printf(sb, "NoRQEModDefferals: %u\n", stats.rqe_dfr_mod);
10494         sbuf_printf(sb, "NoRQEPktDefferals: %u", stats.rqe_dfr_pkt);
10495 
10496         rc = sbuf_finish(sb);
10497         sbuf_delete(sb);
10498 
10499         return (rc);
10500 }
10501 
10502 static int
10503 sysctl_tcp_stats(SYSCTL_HANDLER_ARGS)
10504 {
10505         struct adapter *sc = arg1;
10506         struct sbuf *sb;
10507         int rc;
10508         struct tp_tcp_stats v4, v6;
10509 
10510         rc = sysctl_wire_old_buffer(req, 0);
10511         if (rc != 0)
10512                 return (rc);
10513 
10514         mtx_lock(&sc->reg_lock);
10515         if (hw_off_limits(sc))
10516                 rc = ENXIO;
10517         else
10518                 t4_tp_get_tcp_stats(sc, &v4, &v6, 0);
10519         mtx_unlock(&sc->reg_lock);
10520         if (rc != 0)
10521                 return (rc);
10522 
10523         sb = sbuf_new_for_sysctl(NULL, NULL, 256, req);
10524         if (sb == NULL)
10525                 return (ENOMEM);
10526 
10527         sbuf_printf(sb,
10528             "                                IP                 IPv6\n");
10529         sbuf_printf(sb, "OutRsts:      %20u %20u\n",
10530             v4.tcp_out_rsts, v6.tcp_out_rsts);
10531         sbuf_printf(sb, "InSegs:       %20ju %20ju\n",
10532             v4.tcp_in_segs, v6.tcp_in_segs);
10533         sbuf_printf(sb, "OutSegs:      %20ju %20ju\n",
10534             v4.tcp_out_segs, v6.tcp_out_segs);
10535         sbuf_printf(sb, "RetransSegs:  %20ju %20ju",
10536             v4.tcp_retrans_segs, v6.tcp_retrans_segs);
10537 
10538         rc = sbuf_finish(sb);
10539         sbuf_delete(sb);
10540 
10541         return (rc);
10542 }
10543 
10544 static int
10545 sysctl_tids(SYSCTL_HANDLER_ARGS)
10546 {
10547         struct adapter *sc = arg1;
10548         struct sbuf *sb;
10549         int rc;
10550         uint32_t x, y;
10551         struct tid_info *t = &sc->tids;
10552 
10553         rc = sysctl_wire_old_buffer(req, 0);
10554         if (rc != 0)
10555                 return (rc);
10556 
10557         sb = sbuf_new_for_sysctl(NULL, NULL, 256, req);
10558         if (sb == NULL)
10559                 return (ENOMEM);
10560 
10561         if (t->natids) {
10562                 sbuf_printf(sb, "ATID range: 0-%u, in use: %u\n", t->natids - 1,
10563                     t->atids_in_use);
10564         }
10565 
10566         if (t->nhpftids) {
10567                 sbuf_printf(sb, "HPFTID range: %u-%u, in use: %u\n",
10568                     t->hpftid_base, t->hpftid_end, t->hpftids_in_use);
10569         }
10570 
10571         if (t->ntids) {
10572                 bool hashen = false;
10573 
10574                 mtx_lock(&sc->reg_lock);
10575                 if (hw_off_limits(sc))
10576                         rc = ENXIO;
10577                 else if (t4_read_reg(sc, A_LE_DB_CONFIG) & F_HASHEN) {
10578                         hashen = true;
10579                         if (chip_id(sc) <= CHELSIO_T5) {
10580                                 x = t4_read_reg(sc, A_LE_DB_SERVER_INDEX) / 4;
10581                                 y = t4_read_reg(sc, A_LE_DB_TID_HASHBASE) / 4;
10582                         } else {
10583                                 x = t4_read_reg(sc, A_LE_DB_SRVR_START_INDEX);
10584                                 y = t4_read_reg(sc, A_T6_LE_DB_HASH_TID_BASE);
10585                         }
10586                 }
10587                 mtx_unlock(&sc->reg_lock);
10588                 if (rc != 0)
10589                         goto done;
10590 
10591                 sbuf_printf(sb, "TID range: ");
10592                 if (hashen) {
10593                         if (x)
10594                                 sbuf_printf(sb, "%u-%u, ", t->tid_base, x - 1);
10595                         sbuf_printf(sb, "%u-%u", y, t->ntids - 1);
10596                 } else {
10597                         sbuf_printf(sb, "%u-%u", t->tid_base, t->tid_base +
10598                             t->ntids - 1);
10599                 }
10600                 sbuf_printf(sb, ", in use: %u\n",
10601                     atomic_load_acq_int(&t->tids_in_use));
10602         }
10603 
10604         if (t->nstids) {
10605                 sbuf_printf(sb, "STID range: %u-%u, in use: %u\n", t->stid_base,
10606                     t->stid_base + t->nstids - 1, t->stids_in_use);
10607         }
10608 
10609         if (t->nftids) {
10610                 sbuf_printf(sb, "FTID range: %u-%u, in use: %u\n", t->ftid_base,
10611                     t->ftid_end, t->ftids_in_use);
10612         }
10613 
10614         if (t->netids) {
10615                 sbuf_printf(sb, "ETID range: %u-%u, in use: %u\n", t->etid_base,
10616                     t->etid_base + t->netids - 1, t->etids_in_use);
10617         }
10618 
10619         mtx_lock(&sc->reg_lock);
10620         if (hw_off_limits(sc))
10621                 rc = ENXIO;
10622         else {
10623                 x = t4_read_reg(sc, A_LE_DB_ACT_CNT_IPV4);
10624                 y = t4_read_reg(sc, A_LE_DB_ACT_CNT_IPV6);
10625         }
10626         mtx_unlock(&sc->reg_lock);
10627         if (rc != 0)
10628                 goto done;
10629         sbuf_printf(sb, "HW TID usage: %u IP users, %u IPv6 users", x, y);
10630 done:
10631         if (rc == 0)
10632                 rc = sbuf_finish(sb);
10633         else
10634                 (void)sbuf_finish(sb);
10635         sbuf_delete(sb);
10636 
10637         return (rc);
10638 }
10639 
10640 static int
10641 sysctl_tp_err_stats(SYSCTL_HANDLER_ARGS)
10642 {
10643         struct adapter *sc = arg1;
10644         struct sbuf *sb;
10645         int rc;
10646         struct tp_err_stats stats;
10647 
10648         rc = sysctl_wire_old_buffer(req, 0);
10649         if (rc != 0)
10650                 return (rc);
10651 
10652         mtx_lock(&sc->reg_lock);
10653         if (hw_off_limits(sc))
10654                 rc = ENXIO;
10655         else
10656                 t4_tp_get_err_stats(sc, &stats, 0);
10657         mtx_unlock(&sc->reg_lock);
10658         if (rc != 0)
10659                 return (rc);
10660 
10661         sb = sbuf_new_for_sysctl(NULL, NULL, 256, req);
10662         if (sb == NULL)
10663                 return (ENOMEM);
10664 
10665         if (sc->chip_params->nchan > 2) {
10666                 sbuf_printf(sb, "                 channel 0  channel 1"
10667                     "  channel 2  channel 3\n");
10668                 sbuf_printf(sb, "macInErrs:      %10u %10u %10u %10u\n",
10669                     stats.mac_in_errs[0], stats.mac_in_errs[1],
10670                     stats.mac_in_errs[2], stats.mac_in_errs[3]);
10671                 sbuf_printf(sb, "hdrInErrs:      %10u %10u %10u %10u\n",
10672                     stats.hdr_in_errs[0], stats.hdr_in_errs[1],
10673                     stats.hdr_in_errs[2], stats.hdr_in_errs[3]);
10674                 sbuf_printf(sb, "tcpInErrs:      %10u %10u %10u %10u\n",
10675                     stats.tcp_in_errs[0], stats.tcp_in_errs[1],
10676                     stats.tcp_in_errs[2], stats.tcp_in_errs[3]);
10677                 sbuf_printf(sb, "tcp6InErrs:     %10u %10u %10u %10u\n",
10678                     stats.tcp6_in_errs[0], stats.tcp6_in_errs[1],
10679                     stats.tcp6_in_errs[2], stats.tcp6_in_errs[3]);
10680                 sbuf_printf(sb, "tnlCongDrops:   %10u %10u %10u %10u\n",
10681                     stats.tnl_cong_drops[0], stats.tnl_cong_drops[1],
10682                     stats.tnl_cong_drops[2], stats.tnl_cong_drops[3]);
10683                 sbuf_printf(sb, "tnlTxDrops:     %10u %10u %10u %10u\n",
10684                     stats.tnl_tx_drops[0], stats.tnl_tx_drops[1],
10685                     stats.tnl_tx_drops[2], stats.tnl_tx_drops[3]);
10686                 sbuf_printf(sb, "ofldVlanDrops:  %10u %10u %10u %10u\n",
10687                     stats.ofld_vlan_drops[0], stats.ofld_vlan_drops[1],
10688                     stats.ofld_vlan_drops[2], stats.ofld_vlan_drops[3]);
10689                 sbuf_printf(sb, "ofldChanDrops:  %10u %10u %10u %10u\n\n",
10690                     stats.ofld_chan_drops[0], stats.ofld_chan_drops[1],
10691                     stats.ofld_chan_drops[2], stats.ofld_chan_drops[3]);
10692         } else {
10693                 sbuf_printf(sb, "                 channel 0  channel 1\n");
10694                 sbuf_printf(sb, "macInErrs:      %10u %10u\n",
10695                     stats.mac_in_errs[0], stats.mac_in_errs[1]);
10696                 sbuf_printf(sb, "hdrInErrs:      %10u %10u\n",
10697                     stats.hdr_in_errs[0], stats.hdr_in_errs[1]);
10698                 sbuf_printf(sb, "tcpInErrs:      %10u %10u\n",
10699                     stats.tcp_in_errs[0], stats.tcp_in_errs[1]);
10700                 sbuf_printf(sb, "tcp6InErrs:     %10u %10u\n",
10701                     stats.tcp6_in_errs[0], stats.tcp6_in_errs[1]);
10702                 sbuf_printf(sb, "tnlCongDrops:   %10u %10u\n",
10703                     stats.tnl_cong_drops[0], stats.tnl_cong_drops[1]);
10704                 sbuf_printf(sb, "tnlTxDrops:     %10u %10u\n",
10705                     stats.tnl_tx_drops[0], stats.tnl_tx_drops[1]);
10706                 sbuf_printf(sb, "ofldVlanDrops:  %10u %10u\n",
10707                     stats.ofld_vlan_drops[0], stats.ofld_vlan_drops[1]);
10708                 sbuf_printf(sb, "ofldChanDrops:  %10u %10u\n\n",
10709                     stats.ofld_chan_drops[0], stats.ofld_chan_drops[1]);
10710         }
10711 
10712         sbuf_printf(sb, "ofldNoNeigh:    %u\nofldCongDefer:  %u",
10713             stats.ofld_no_neigh, stats.ofld_cong_defer);
10714 
10715         rc = sbuf_finish(sb);
10716         sbuf_delete(sb);
10717 
10718         return (rc);
10719 }
10720 
10721 static int
10722 sysctl_tnl_stats(SYSCTL_HANDLER_ARGS)
10723 {
10724         struct adapter *sc = arg1;
10725         struct sbuf *sb;
10726         int rc;
10727         struct tp_tnl_stats stats;
10728 
10729         rc = sysctl_wire_old_buffer(req, 0);
10730         if (rc != 0)
10731                 return(rc);
10732 
10733         mtx_lock(&sc->reg_lock);
10734         if (hw_off_limits(sc))
10735                 rc = ENXIO;
10736         else
10737                 t4_tp_get_tnl_stats(sc, &stats, 1);
10738         mtx_unlock(&sc->reg_lock);
10739         if (rc != 0)
10740                 return (rc);
10741 
10742         sb = sbuf_new_for_sysctl(NULL, NULL, 256, req);
10743         if (sb == NULL)
10744                 return (ENOMEM);
10745 
10746         if (sc->chip_params->nchan > 2) {
10747                 sbuf_printf(sb, "           channel 0  channel 1"
10748                     "  channel 2  channel 3\n");
10749                 sbuf_printf(sb, "OutPkts:  %10u %10u %10u %10u\n",
10750                     stats.out_pkt[0], stats.out_pkt[1],
10751                     stats.out_pkt[2], stats.out_pkt[3]);
10752                 sbuf_printf(sb, "InPkts:   %10u %10u %10u %10u",
10753                     stats.in_pkt[0], stats.in_pkt[1],
10754                     stats.in_pkt[2], stats.in_pkt[3]);
10755         } else {
10756                 sbuf_printf(sb, "           channel 0  channel 1\n");
10757                 sbuf_printf(sb, "OutPkts:  %10u %10u\n",
10758                     stats.out_pkt[0], stats.out_pkt[1]);
10759                 sbuf_printf(sb, "InPkts:   %10u %10u",
10760                     stats.in_pkt[0], stats.in_pkt[1]);
10761         }
10762 
10763         rc = sbuf_finish(sb);
10764         sbuf_delete(sb);
10765 
10766         return (rc);
10767 }
10768 
10769 static int
10770 sysctl_tp_la_mask(SYSCTL_HANDLER_ARGS)
10771 {
10772         struct adapter *sc = arg1;
10773         struct tp_params *tpp = &sc->params.tp;
10774         u_int mask;
10775         int rc;
10776 
10777         mask = tpp->la_mask >> 16;
10778         rc = sysctl_handle_int(oidp, &mask, 0, req);
10779         if (rc != 0 || req->newptr == NULL)
10780                 return (rc);
10781         if (mask > 0xffff)
10782                 return (EINVAL);
10783         mtx_lock(&sc->reg_lock);
10784         if (hw_off_limits(sc))
10785                 rc = ENXIO;
10786         else {
10787                 tpp->la_mask = mask << 16;
10788                 t4_set_reg_field(sc, A_TP_DBG_LA_CONFIG, 0xffff0000U,
10789                     tpp->la_mask);
10790         }
10791         mtx_unlock(&sc->reg_lock);
10792 
10793         return (rc);
10794 }
10795 
10796 struct field_desc {
10797         const char *name;
10798         u_int start;
10799         u_int width;
10800 };
10801 
10802 static void
10803 field_desc_show(struct sbuf *sb, uint64_t v, const struct field_desc *f)
10804 {
10805         char buf[32];
10806         int line_size = 0;
10807 
10808         while (f->name) {
10809                 uint64_t mask = (1ULL << f->width) - 1;
10810                 int len = snprintf(buf, sizeof(buf), "%s: %ju", f->name,
10811                     ((uintmax_t)v >> f->start) & mask);
10812 
10813                 if (line_size + len >= 79) {
10814                         line_size = 8;
10815                         sbuf_printf(sb, "\n        ");
10816                 }
10817                 sbuf_printf(sb, "%s ", buf);
10818                 line_size += len + 1;
10819                 f++;
10820         }
10821         sbuf_printf(sb, "\n");
10822 }
10823 
10824 static const struct field_desc tp_la0[] = {
10825         { "RcfOpCodeOut", 60, 4 },
10826         { "State", 56, 4 },
10827         { "WcfState", 52, 4 },
10828         { "RcfOpcSrcOut", 50, 2 },
10829         { "CRxError", 49, 1 },
10830         { "ERxError", 48, 1 },
10831         { "SanityFailed", 47, 1 },
10832         { "SpuriousMsg", 46, 1 },
10833         { "FlushInputMsg", 45, 1 },
10834         { "FlushInputCpl", 44, 1 },
10835         { "RssUpBit", 43, 1 },
10836         { "RssFilterHit", 42, 1 },
10837         { "Tid", 32, 10 },
10838         { "InitTcb", 31, 1 },
10839         { "LineNumber", 24, 7 },
10840         { "Emsg", 23, 1 },
10841         { "EdataOut", 22, 1 },
10842         { "Cmsg", 21, 1 },
10843         { "CdataOut", 20, 1 },
10844         { "EreadPdu", 19, 1 },
10845         { "CreadPdu", 18, 1 },
10846         { "TunnelPkt", 17, 1 },
10847         { "RcfPeerFin", 16, 1 },
10848         { "RcfReasonOut", 12, 4 },
10849         { "TxCchannel", 10, 2 },
10850         { "RcfTxChannel", 8, 2 },
10851         { "RxEchannel", 6, 2 },
10852         { "RcfRxChannel", 5, 1 },
10853         { "RcfDataOutSrdy", 4, 1 },
10854         { "RxDvld", 3, 1 },
10855         { "RxOoDvld", 2, 1 },
10856         { "RxCongestion", 1, 1 },
10857         { "TxCongestion", 0, 1 },
10858         { NULL }
10859 };
10860 
10861 static const struct field_desc tp_la1[] = {
10862         { "CplCmdIn", 56, 8 },
10863         { "CplCmdOut", 48, 8 },
10864         { "ESynOut", 47, 1 },
10865         { "EAckOut", 46, 1 },
10866         { "EFinOut", 45, 1 },
10867         { "ERstOut", 44, 1 },
10868         { "SynIn", 43, 1 },
10869         { "AckIn", 42, 1 },
10870         { "FinIn", 41, 1 },
10871         { "RstIn", 40, 1 },
10872         { "DataIn", 39, 1 },
10873         { "DataInVld", 38, 1 },
10874         { "PadIn", 37, 1 },
10875         { "RxBufEmpty", 36, 1 },
10876         { "RxDdp", 35, 1 },
10877         { "RxFbCongestion", 34, 1 },
10878         { "TxFbCongestion", 33, 1 },
10879         { "TxPktSumSrdy", 32, 1 },
10880         { "RcfUlpType", 28, 4 },
10881         { "Eread", 27, 1 },
10882         { "Ebypass", 26, 1 },
10883         { "Esave", 25, 1 },
10884         { "Static0", 24, 1 },
10885         { "Cread", 23, 1 },
10886         { "Cbypass", 22, 1 },
10887         { "Csave", 21, 1 },
10888         { "CPktOut", 20, 1 },
10889         { "RxPagePoolFull", 18, 2 },
10890         { "RxLpbkPkt", 17, 1 },
10891         { "TxLpbkPkt", 16, 1 },
10892         { "RxVfValid", 15, 1 },
10893         { "SynLearned", 14, 1 },
10894         { "SetDelEntry", 13, 1 },
10895         { "SetInvEntry", 12, 1 },
10896         { "CpcmdDvld", 11, 1 },
10897         { "CpcmdSave", 10, 1 },
10898         { "RxPstructsFull", 8, 2 },
10899         { "EpcmdDvld", 7, 1 },
10900         { "EpcmdFlush", 6, 1 },
10901         { "EpcmdTrimPrefix", 5, 1 },
10902         { "EpcmdTrimPostfix", 4, 1 },
10903         { "ERssIp4Pkt", 3, 1 },
10904         { "ERssIp6Pkt", 2, 1 },
10905         { "ERssTcpUdpPkt", 1, 1 },
10906         { "ERssFceFipPkt", 0, 1 },
10907         { NULL }
10908 };
10909 
10910 static const struct field_desc tp_la2[] = {
10911         { "CplCmdIn", 56, 8 },
10912         { "MpsVfVld", 55, 1 },
10913         { "MpsPf", 52, 3 },
10914         { "MpsVf", 44, 8 },
10915         { "SynIn", 43, 1 },
10916         { "AckIn", 42, 1 },
10917         { "FinIn", 41, 1 },
10918         { "RstIn", 40, 1 },
10919         { "DataIn", 39, 1 },
10920         { "DataInVld", 38, 1 },
10921         { "PadIn", 37, 1 },
10922         { "RxBufEmpty", 36, 1 },
10923         { "RxDdp", 35, 1 },
10924         { "RxFbCongestion", 34, 1 },
10925         { "TxFbCongestion", 33, 1 },
10926         { "TxPktSumSrdy", 32, 1 },
10927         { "RcfUlpType", 28, 4 },
10928         { "Eread", 27, 1 },
10929         { "Ebypass", 26, 1 },
10930         { "Esave", 25, 1 },
10931         { "Static0", 24, 1 },
10932         { "Cread", 23, 1 },
10933         { "Cbypass", 22, 1 },
10934         { "Csave", 21, 1 },
10935         { "CPktOut", 20, 1 },
10936         { "RxPagePoolFull", 18, 2 },
10937         { "RxLpbkPkt", 17, 1 },
10938         { "TxLpbkPkt", 16, 1 },
10939         { "RxVfValid", 15, 1 },
10940         { "SynLearned", 14, 1 },
10941         { "SetDelEntry", 13, 1 },
10942         { "SetInvEntry", 12, 1 },
10943         { "CpcmdDvld", 11, 1 },
10944         { "CpcmdSave", 10, 1 },
10945         { "RxPstructsFull", 8, 2 },
10946         { "EpcmdDvld", 7, 1 },
10947         { "EpcmdFlush", 6, 1 },
10948         { "EpcmdTrimPrefix", 5, 1 },
10949         { "EpcmdTrimPostfix", 4, 1 },
10950         { "ERssIp4Pkt", 3, 1 },
10951         { "ERssIp6Pkt", 2, 1 },
10952         { "ERssTcpUdpPkt", 1, 1 },
10953         { "ERssFceFipPkt", 0, 1 },
10954         { NULL }
10955 };
10956 
10957 static void
10958 tp_la_show(struct sbuf *sb, uint64_t *p, int idx)
10959 {
10960 
10961         field_desc_show(sb, *p, tp_la0);
10962 }
10963 
10964 static void
10965 tp_la_show2(struct sbuf *sb, uint64_t *p, int idx)
10966 {
10967 
10968         if (idx)
10969                 sbuf_printf(sb, "\n");
10970         field_desc_show(sb, p[0], tp_la0);
10971         if (idx < (TPLA_SIZE / 2 - 1) || p[1] != ~0ULL)
10972                 field_desc_show(sb, p[1], tp_la0);
10973 }
10974 
10975 static void
10976 tp_la_show3(struct sbuf *sb, uint64_t *p, int idx)
10977 {
10978 
10979         if (idx)
10980                 sbuf_printf(sb, "\n");
10981         field_desc_show(sb, p[0], tp_la0);
10982         if (idx < (TPLA_SIZE / 2 - 1) || p[1] != ~0ULL)
10983                 field_desc_show(sb, p[1], (p[0] & (1 << 17)) ? tp_la2 : tp_la1);
10984 }
10985 
10986 static int
10987 sysctl_tp_la(SYSCTL_HANDLER_ARGS)
10988 {
10989         struct adapter *sc = arg1;
10990         struct sbuf *sb;
10991         uint64_t *buf, *p;
10992         int rc;
10993         u_int i, inc;
10994         void (*show_func)(struct sbuf *, uint64_t *, int);
10995 
10996         rc = sysctl_wire_old_buffer(req, 0);
10997         if (rc != 0)
10998                 return (rc);
10999 
11000         sb = sbuf_new_for_sysctl(NULL, NULL, 4096, req);
11001         if (sb == NULL)
11002                 return (ENOMEM);
11003 
11004         buf = malloc(TPLA_SIZE * sizeof(uint64_t), M_CXGBE, M_ZERO | M_WAITOK);
11005 
11006         mtx_lock(&sc->reg_lock);
11007         if (hw_off_limits(sc))
11008                 rc = ENXIO;
11009         else {
11010                 t4_tp_read_la(sc, buf, NULL);
11011                 switch (G_DBGLAMODE(t4_read_reg(sc, A_TP_DBG_LA_CONFIG))) {
11012                 case 2:
11013                         inc = 2;
11014                         show_func = tp_la_show2;
11015                         break;
11016                 case 3:
11017                         inc = 2;
11018                         show_func = tp_la_show3;
11019                         break;
11020                 default:
11021                         inc = 1;
11022                         show_func = tp_la_show;
11023                 }
11024         }
11025         mtx_unlock(&sc->reg_lock);
11026         if (rc != 0)
11027                 goto done;
11028 
11029         p = buf;
11030         for (i = 0; i < TPLA_SIZE / inc; i++, p += inc)
11031                 (*show_func)(sb, p, i);
11032         rc = sbuf_finish(sb);
11033 done:
11034         sbuf_delete(sb);
11035         free(buf, M_CXGBE);
11036         return (rc);
11037 }
11038 
11039 static int
11040 sysctl_tx_rate(SYSCTL_HANDLER_ARGS)
11041 {
11042         struct adapter *sc = arg1;
11043         struct sbuf *sb;
11044         int rc;
11045         u64 nrate[MAX_NCHAN], orate[MAX_NCHAN];
11046 
11047         rc = sysctl_wire_old_buffer(req, 0);
11048         if (rc != 0)
11049                 return (rc);
11050 
11051         mtx_lock(&sc->reg_lock);
11052         if (hw_off_limits(sc))
11053                 rc = ENXIO;
11054         else
11055                 t4_get_chan_txrate(sc, nrate, orate);
11056         mtx_unlock(&sc->reg_lock);
11057         if (rc != 0)
11058                 return (rc);
11059 
11060         sb = sbuf_new_for_sysctl(NULL, NULL, 256, req);
11061         if (sb == NULL)
11062                 return (ENOMEM);
11063 
11064         if (sc->chip_params->nchan > 2) {
11065                 sbuf_printf(sb, "              channel 0   channel 1"
11066                     "   channel 2   channel 3\n");
11067                 sbuf_printf(sb, "NIC B/s:     %10ju  %10ju  %10ju  %10ju\n",
11068                     nrate[0], nrate[1], nrate[2], nrate[3]);
11069                 sbuf_printf(sb, "Offload B/s: %10ju  %10ju  %10ju  %10ju",
11070                     orate[0], orate[1], orate[2], orate[3]);
11071         } else {
11072                 sbuf_printf(sb, "              channel 0   channel 1\n");
11073                 sbuf_printf(sb, "NIC B/s:     %10ju  %10ju\n",
11074                     nrate[0], nrate[1]);
11075                 sbuf_printf(sb, "Offload B/s: %10ju  %10ju",
11076                     orate[0], orate[1]);
11077         }
11078 
11079         rc = sbuf_finish(sb);
11080         sbuf_delete(sb);
11081 
11082         return (rc);
11083 }
11084 
11085 static int
11086 sysctl_ulprx_la(SYSCTL_HANDLER_ARGS)
11087 {
11088         struct adapter *sc = arg1;
11089         struct sbuf *sb;
11090         uint32_t *buf, *p;
11091         int rc, i;
11092 
11093         rc = sysctl_wire_old_buffer(req, 0);
11094         if (rc != 0)
11095                 return (rc);
11096 
11097         sb = sbuf_new_for_sysctl(NULL, NULL, 4096, req);
11098         if (sb == NULL)
11099                 return (ENOMEM);
11100 
11101         buf = malloc(ULPRX_LA_SIZE * 8 * sizeof(uint32_t), M_CXGBE,
11102             M_ZERO | M_WAITOK);
11103 
11104         mtx_lock(&sc->reg_lock);
11105         if (hw_off_limits(sc))
11106                 rc = ENXIO;
11107         else
11108                 t4_ulprx_read_la(sc, buf);
11109         mtx_unlock(&sc->reg_lock);
11110         if (rc != 0)
11111                 goto done;
11112 
11113         p = buf;
11114         sbuf_printf(sb, "      Pcmd        Type   Message"
11115             "                Data");
11116         for (i = 0; i < ULPRX_LA_SIZE; i++, p += 8) {
11117                 sbuf_printf(sb, "\n%08x%08x  %4x  %08x  %08x%08x%08x%08x",
11118                     p[1], p[0], p[2], p[3], p[7], p[6], p[5], p[4]);
11119         }
11120         rc = sbuf_finish(sb);
11121 done:
11122         sbuf_delete(sb);
11123         free(buf, M_CXGBE);
11124         return (rc);
11125 }
11126 
11127 static int
11128 sysctl_wcwr_stats(SYSCTL_HANDLER_ARGS)
11129 {
11130         struct adapter *sc = arg1;
11131         struct sbuf *sb;
11132         int rc;
11133         uint32_t cfg, s1, s2;
11134 
11135         MPASS(chip_id(sc) >= CHELSIO_T5);
11136 
11137         rc = sysctl_wire_old_buffer(req, 0);
11138         if (rc != 0)
11139                 return (rc);
11140 
11141         mtx_lock(&sc->reg_lock);
11142         if (hw_off_limits(sc))
11143                 rc = ENXIO;
11144         else {
11145                 cfg = t4_read_reg(sc, A_SGE_STAT_CFG);
11146                 s1 = t4_read_reg(sc, A_SGE_STAT_TOTAL);
11147                 s2 = t4_read_reg(sc, A_SGE_STAT_MATCH);
11148         }
11149         mtx_unlock(&sc->reg_lock);
11150         if (rc != 0)
11151                 return (rc);
11152 
11153         sb = sbuf_new_for_sysctl(NULL, NULL, 4096, req);
11154         if (sb == NULL)
11155                 return (ENOMEM);
11156 
11157         if (G_STATSOURCE_T5(cfg) == 7) {
11158                 int mode;
11159 
11160                 mode = is_t5(sc) ? G_STATMODE(cfg) : G_T6_STATMODE(cfg);
11161                 if (mode == 0)
11162                         sbuf_printf(sb, "total %d, incomplete %d", s1, s2);
11163                 else if (mode == 1)
11164                         sbuf_printf(sb, "total %d, data overflow %d", s1, s2);
11165                 else
11166                         sbuf_printf(sb, "unknown mode %d", mode);
11167         }
11168         rc = sbuf_finish(sb);
11169         sbuf_delete(sb);
11170 
11171         return (rc);
11172 }
11173 
11174 static int
11175 sysctl_cpus(SYSCTL_HANDLER_ARGS)
11176 {
11177         struct adapter *sc = arg1;
11178         enum cpu_sets op = arg2;
11179         cpuset_t cpuset;
11180         struct sbuf *sb;
11181         int i, rc;
11182 
11183         MPASS(op == LOCAL_CPUS || op == INTR_CPUS);
11184 
11185         CPU_ZERO(&cpuset);
11186         rc = bus_get_cpus(sc->dev, op, sizeof(cpuset), &cpuset);
11187         if (rc != 0)
11188                 return (rc);
11189 
11190         rc = sysctl_wire_old_buffer(req, 0);
11191         if (rc != 0)
11192                 return (rc);
11193 
11194         sb = sbuf_new_for_sysctl(NULL, NULL, 4096, req);
11195         if (sb == NULL)
11196                 return (ENOMEM);
11197 
11198         CPU_FOREACH(i)
11199                 sbuf_printf(sb, "%d ", i);
11200         rc = sbuf_finish(sb);
11201         sbuf_delete(sb);
11202 
11203         return (rc);
11204 }
11205 
11206 static int
11207 sysctl_reset(SYSCTL_HANDLER_ARGS)
11208 {
11209         struct adapter *sc = arg1;
11210         u_int val;
11211         int rc;
11212 
11213         val = atomic_load_int(&sc->num_resets);
11214         rc = sysctl_handle_int(oidp, &val, 0, req);
11215         if (rc != 0 || req->newptr == NULL)
11216                 return (rc);
11217 
11218         if (val == 0) {
11219                 /* Zero out the counter that tracks reset. */
11220                 atomic_store_int(&sc->num_resets, 0);
11221                 return (0);
11222         }
11223 
11224         if (val != 1)
11225                 return (EINVAL);        /* 0 or 1 are the only legal values */
11226 
11227         if (hw_off_limits(sc))          /* harmless race */
11228                 return (EALREADY);
11229 
11230         taskqueue_enqueue(reset_tq, &sc->reset_task);
11231         return (0);
11232 }
11233 
11234 #ifdef TCP_OFFLOAD
11235 static int
11236 sysctl_tls(SYSCTL_HANDLER_ARGS)
11237 {
11238         struct adapter *sc = arg1;
11239         int i, j, v, rc;
11240         struct vi_info *vi;
11241 
11242         v = sc->tt.tls;
11243         rc = sysctl_handle_int(oidp, &v, 0, req);
11244         if (rc != 0 || req->newptr == NULL)
11245                 return (rc);
11246 
11247         if (v != 0 && !(sc->cryptocaps & FW_CAPS_CONFIG_TLSKEYS))
11248                 return (ENOTSUP);
11249 
11250         rc = begin_synchronized_op(sc, NULL, SLEEP_OK | INTR_OK, "t4stls");
11251         if (rc)
11252                 return (rc);
11253         if (hw_off_limits(sc))
11254                 rc = ENXIO;
11255         else {
11256                 sc->tt.tls = !!v;
11257                 for_each_port(sc, i) {
11258                         for_each_vi(sc->port[i], j, vi) {
11259                                 if (vi->flags & VI_INIT_DONE)
11260                                         t4_update_fl_bufsize(vi->ifp);
11261                         }
11262                 }
11263         }
11264         end_synchronized_op(sc, 0);
11265 
11266         return (rc);
11267 
11268 }
11269 
11270 static void
11271 unit_conv(char *buf, size_t len, u_int val, u_int factor)
11272 {
11273         u_int rem = val % factor;
11274 
11275         if (rem == 0)
11276                 snprintf(buf, len, "%u", val / factor);
11277         else {
11278                 while (rem % 10 == 0)
11279                         rem /= 10;
11280                 snprintf(buf, len, "%u.%u", val / factor, rem);
11281         }
11282 }
11283 
11284 static int
11285 sysctl_tp_tick(SYSCTL_HANDLER_ARGS)
11286 {
11287         struct adapter *sc = arg1;
11288         char buf[16];
11289         u_int res, re;
11290         u_int cclk_ps = 1000000000 / sc->params.vpd.cclk;
11291 
11292         mtx_lock(&sc->reg_lock);
11293         if (hw_off_limits(sc))
11294                 res = (u_int)-1;
11295         else
11296                 res = t4_read_reg(sc, A_TP_TIMER_RESOLUTION);
11297         mtx_unlock(&sc->reg_lock);
11298         if (res == (u_int)-1)
11299                 return (ENXIO);
11300 
11301         switch (arg2) {
11302         case 0:
11303                 /* timer_tick */
11304                 re = G_TIMERRESOLUTION(res);
11305                 break;
11306         case 1:
11307                 /* TCP timestamp tick */
11308                 re = G_TIMESTAMPRESOLUTION(res);
11309                 break;
11310         case 2:
11311                 /* DACK tick */
11312                 re = G_DELAYEDACKRESOLUTION(res);
11313                 break;
11314         default:
11315                 return (EDOOFUS);
11316         }
11317 
11318         unit_conv(buf, sizeof(buf), (cclk_ps << re), 1000000);
11319 
11320         return (sysctl_handle_string(oidp, buf, sizeof(buf), req));
11321 }
11322 
11323 static int
11324 sysctl_tp_dack_timer(SYSCTL_HANDLER_ARGS)
11325 {
11326         struct adapter *sc = arg1;
11327         int rc;
11328         u_int dack_tmr, dack_re, v;
11329         u_int cclk_ps = 1000000000 / sc->params.vpd.cclk;
11330 
11331         mtx_lock(&sc->reg_lock);
11332         if (hw_off_limits(sc))
11333                 rc = ENXIO;
11334         else {
11335                 rc = 0;
11336                 dack_re = G_DELAYEDACKRESOLUTION(t4_read_reg(sc,
11337                     A_TP_TIMER_RESOLUTION));
11338                 dack_tmr = t4_read_reg(sc, A_TP_DACK_TIMER);
11339         }
11340         mtx_unlock(&sc->reg_lock);
11341         if (rc != 0)
11342                 return (rc);
11343 
11344         v = ((cclk_ps << dack_re) / 1000000) * dack_tmr;
11345 
11346         return (sysctl_handle_int(oidp, &v, 0, req));
11347 }
11348 
11349 static int
11350 sysctl_tp_timer(SYSCTL_HANDLER_ARGS)
11351 {
11352         struct adapter *sc = arg1;
11353         int rc, reg = arg2;
11354         u_int tre;
11355         u_long tp_tick_us, v;
11356         u_int cclk_ps = 1000000000 / sc->params.vpd.cclk;
11357 
11358         MPASS(reg == A_TP_RXT_MIN || reg == A_TP_RXT_MAX ||
11359             reg == A_TP_PERS_MIN  || reg == A_TP_PERS_MAX ||
11360             reg == A_TP_KEEP_IDLE || reg == A_TP_KEEP_INTVL ||
11361             reg == A_TP_INIT_SRTT || reg == A_TP_FINWAIT2_TIMER);
11362 
11363         mtx_lock(&sc->reg_lock);
11364         if (hw_off_limits(sc))
11365                 rc = ENXIO;
11366         else {
11367                 rc = 0;
11368                 tre = G_TIMERRESOLUTION(t4_read_reg(sc, A_TP_TIMER_RESOLUTION));
11369                 tp_tick_us = (cclk_ps << tre) / 1000000;
11370                 if (reg == A_TP_INIT_SRTT)
11371                         v = tp_tick_us * G_INITSRTT(t4_read_reg(sc, reg));
11372                 else
11373                         v = tp_tick_us * t4_read_reg(sc, reg);
11374         }
11375         mtx_unlock(&sc->reg_lock);
11376         if (rc != 0)
11377                 return (rc);
11378         else
11379                 return (sysctl_handle_long(oidp, &v, 0, req));
11380 }
11381 
11382 /*
11383  * All fields in TP_SHIFT_CNT are 4b and the starting location of the field is
11384  * passed to this function.
11385  */
11386 static int
11387 sysctl_tp_shift_cnt(SYSCTL_HANDLER_ARGS)
11388 {
11389         struct adapter *sc = arg1;
11390         int rc, idx = arg2;
11391         u_int v;
11392 
11393         MPASS(idx >= 0 && idx <= 24);
11394 
11395         mtx_lock(&sc->reg_lock);
11396         if (hw_off_limits(sc))
11397                 rc = ENXIO;
11398         else {
11399                 rc = 0;
11400                 v = (t4_read_reg(sc, A_TP_SHIFT_CNT) >> idx) & 0xf;
11401         }
11402         mtx_unlock(&sc->reg_lock);
11403         if (rc != 0)
11404                 return (rc);
11405         else
11406                 return (sysctl_handle_int(oidp, &v, 0, req));
11407 }
11408 
11409 static int
11410 sysctl_tp_backoff(SYSCTL_HANDLER_ARGS)
11411 {
11412         struct adapter *sc = arg1;
11413         int rc, idx = arg2;
11414         u_int shift, v, r;
11415 
11416         MPASS(idx >= 0 && idx < 16);
11417 
11418         r = A_TP_TCP_BACKOFF_REG0 + (idx & ~3);
11419         shift = (idx & 3) << 3;
11420         mtx_lock(&sc->reg_lock);
11421         if (hw_off_limits(sc))
11422                 rc = ENXIO;
11423         else {
11424                 rc = 0;
11425                 v = (t4_read_reg(sc, r) >> shift) & M_TIMERBACKOFFINDEX0;
11426         }
11427         mtx_unlock(&sc->reg_lock);
11428         if (rc != 0)
11429                 return (rc);
11430         else
11431                 return (sysctl_handle_int(oidp, &v, 0, req));
11432 }
11433 
11434 static int
11435 sysctl_holdoff_tmr_idx_ofld(SYSCTL_HANDLER_ARGS)
11436 {
11437         struct vi_info *vi = arg1;
11438         struct adapter *sc = vi->adapter;
11439         int idx, rc, i;
11440         struct sge_ofld_rxq *ofld_rxq;
11441         uint8_t v;
11442 
11443         idx = vi->ofld_tmr_idx;
11444 
11445         rc = sysctl_handle_int(oidp, &idx, 0, req);
11446         if (rc != 0 || req->newptr == NULL)
11447                 return (rc);
11448 
11449         if (idx < 0 || idx >= SGE_NTIMERS)
11450                 return (EINVAL);
11451 
11452         rc = begin_synchronized_op(sc, vi, HOLD_LOCK | SLEEP_OK | INTR_OK,
11453             "t4otmr");
11454         if (rc)
11455                 return (rc);
11456 
11457         v = V_QINTR_TIMER_IDX(idx) | V_QINTR_CNT_EN(vi->ofld_pktc_idx != -1);
11458         for_each_ofld_rxq(vi, i, ofld_rxq) {
11459 #ifdef atomic_store_rel_8
11460                 atomic_store_rel_8(&ofld_rxq->iq.intr_params, v);
11461 #else
11462                 ofld_rxq->iq.intr_params = v;
11463 #endif
11464         }
11465         vi->ofld_tmr_idx = idx;
11466 
11467         end_synchronized_op(sc, LOCK_HELD);
11468         return (0);
11469 }
11470 
11471 static int
11472 sysctl_holdoff_pktc_idx_ofld(SYSCTL_HANDLER_ARGS)
11473 {
11474         struct vi_info *vi = arg1;
11475         struct adapter *sc = vi->adapter;
11476         int idx, rc;
11477 
11478         idx = vi->ofld_pktc_idx;
11479 
11480         rc = sysctl_handle_int(oidp, &idx, 0, req);
11481         if (rc != 0 || req->newptr == NULL)
11482                 return (rc);
11483 
11484         if (idx < -1 || idx >= SGE_NCOUNTERS)
11485                 return (EINVAL);
11486 
11487         rc = begin_synchronized_op(sc, vi, HOLD_LOCK | SLEEP_OK | INTR_OK,
11488             "t4opktc");
11489         if (rc)
11490                 return (rc);
11491 
11492         if (vi->flags & VI_INIT_DONE)
11493                 rc = EBUSY; /* cannot be changed once the queues are created */
11494         else
11495                 vi->ofld_pktc_idx = idx;
11496 
11497         end_synchronized_op(sc, LOCK_HELD);
11498         return (rc);
11499 }
11500 #endif
11501 
11502 static int
11503 get_sge_context(struct adapter *sc, struct t4_sge_context *cntxt)
11504 {
11505         int rc;
11506 
11507         if (cntxt->cid > M_CTXTQID)
11508                 return (EINVAL);
11509 
11510         if (cntxt->mem_id != CTXT_EGRESS && cntxt->mem_id != CTXT_INGRESS &&
11511             cntxt->mem_id != CTXT_FLM && cntxt->mem_id != CTXT_CNM)
11512                 return (EINVAL);
11513 
11514         rc = begin_synchronized_op(sc, NULL, SLEEP_OK | INTR_OK, "t4ctxt");
11515         if (rc)
11516                 return (rc);
11517 
11518         if (hw_off_limits(sc)) {
11519                 rc = ENXIO;
11520                 goto done;
11521         }
11522 
11523         if (sc->flags & FW_OK) {
11524                 rc = -t4_sge_ctxt_rd(sc, sc->mbox, cntxt->cid, cntxt->mem_id,
11525                     &cntxt->data[0]);
11526                 if (rc == 0)
11527                         goto done;
11528         }
11529 
11530         /*
11531          * Read via firmware failed or wasn't even attempted.  Read directly via
11532          * the backdoor.
11533          */
11534         rc = -t4_sge_ctxt_rd_bd(sc, cntxt->cid, cntxt->mem_id, &cntxt->data[0]);
11535 done:
11536         end_synchronized_op(sc, 0);
11537         return (rc);
11538 }
11539 
11540 static int
11541 load_fw(struct adapter *sc, struct t4_data *fw)
11542 {
11543         int rc;
11544         uint8_t *fw_data;
11545 
11546         rc = begin_synchronized_op(sc, NULL, SLEEP_OK | INTR_OK, "t4ldfw");
11547         if (rc)
11548                 return (rc);
11549 
11550         if (hw_off_limits(sc)) {
11551                 rc = ENXIO;
11552                 goto done;
11553         }
11554 
11555         /*
11556          * The firmware, with the sole exception of the memory parity error
11557          * handler, runs from memory and not flash.  It is almost always safe to
11558          * install a new firmware on a running system.  Just set bit 1 in
11559          * hw.cxgbe.dflags or dev.<nexus>.<n>.dflags first.
11560          */
11561         if (sc->flags & FULL_INIT_DONE &&
11562             (sc->debug_flags & DF_LOAD_FW_ANYTIME) == 0) {
11563                 rc = EBUSY;
11564                 goto done;
11565         }
11566 
11567         fw_data = malloc(fw->len, M_CXGBE, M_WAITOK);
11568 
11569         rc = copyin(fw->data, fw_data, fw->len);
11570         if (rc == 0)
11571                 rc = -t4_load_fw(sc, fw_data, fw->len);
11572 
11573         free(fw_data, M_CXGBE);
11574 done:
11575         end_synchronized_op(sc, 0);
11576         return (rc);
11577 }
11578 
11579 static int
11580 load_cfg(struct adapter *sc, struct t4_data *cfg)
11581 {
11582         int rc;
11583         uint8_t *cfg_data = NULL;
11584 
11585         rc = begin_synchronized_op(sc, NULL, SLEEP_OK | INTR_OK, "t4ldcf");
11586         if (rc)
11587                 return (rc);
11588 
11589         if (hw_off_limits(sc)) {
11590                 rc = ENXIO;
11591                 goto done;
11592         }
11593 
11594         if (cfg->len == 0) {
11595                 /* clear */
11596                 rc = -t4_load_cfg(sc, NULL, 0);
11597                 goto done;
11598         }
11599 
11600         cfg_data = malloc(cfg->len, M_CXGBE, M_WAITOK);
11601 
11602         rc = copyin(cfg->data, cfg_data, cfg->len);
11603         if (rc == 0)
11604                 rc = -t4_load_cfg(sc, cfg_data, cfg->len);
11605 
11606         free(cfg_data, M_CXGBE);
11607 done:
11608         end_synchronized_op(sc, 0);
11609         return (rc);
11610 }
11611 
11612 static int
11613 load_boot(struct adapter *sc, struct t4_bootrom *br)
11614 {
11615         int rc;
11616         uint8_t *br_data = NULL;
11617         u_int offset;
11618 
11619         if (br->len > 1024 * 1024)
11620                 return (EFBIG);
11621 
11622         if (br->pf_offset == 0) {
11623                 /* pfidx */
11624                 if (br->pfidx_addr > 7)
11625                         return (EINVAL);
11626                 offset = G_OFFSET(t4_read_reg(sc, PF_REG(br->pfidx_addr,
11627                     A_PCIE_PF_EXPROM_OFST)));
11628         } else if (br->pf_offset == 1) {
11629                 /* offset */
11630                 offset = G_OFFSET(br->pfidx_addr);
11631         } else {
11632                 return (EINVAL);
11633         }
11634 
11635         rc = begin_synchronized_op(sc, NULL, SLEEP_OK | INTR_OK, "t4ldbr");
11636         if (rc)
11637                 return (rc);
11638 
11639         if (hw_off_limits(sc)) {
11640                 rc = ENXIO;
11641                 goto done;
11642         }
11643 
11644         if (br->len == 0) {
11645                 /* clear */
11646                 rc = -t4_load_boot(sc, NULL, offset, 0);
11647                 goto done;
11648         }
11649 
11650         br_data = malloc(br->len, M_CXGBE, M_WAITOK);
11651 
11652         rc = copyin(br->data, br_data, br->len);
11653         if (rc == 0)
11654                 rc = -t4_load_boot(sc, br_data, offset, br->len);
11655 
11656         free(br_data, M_CXGBE);
11657 done:
11658         end_synchronized_op(sc, 0);
11659         return (rc);
11660 }
11661 
11662 static int
11663 load_bootcfg(struct adapter *sc, struct t4_data *bc)
11664 {
11665         int rc;
11666         uint8_t *bc_data = NULL;
11667 
11668         rc = begin_synchronized_op(sc, NULL, SLEEP_OK | INTR_OK, "t4ldcf");
11669         if (rc)
11670                 return (rc);
11671 
11672         if (hw_off_limits(sc)) {
11673                 rc = ENXIO;
11674                 goto done;
11675         }
11676 
11677         if (bc->len == 0) {
11678                 /* clear */
11679                 rc = -t4_load_bootcfg(sc, NULL, 0);
11680                 goto done;
11681         }
11682 
11683         bc_data = malloc(bc->len, M_CXGBE, M_WAITOK);
11684 
11685         rc = copyin(bc->data, bc_data, bc->len);
11686         if (rc == 0)
11687                 rc = -t4_load_bootcfg(sc, bc_data, bc->len);
11688 
11689         free(bc_data, M_CXGBE);
11690 done:
11691         end_synchronized_op(sc, 0);
11692         return (rc);
11693 }
11694 
11695 static int
11696 cudbg_dump(struct adapter *sc, struct t4_cudbg_dump *dump)
11697 {
11698         int rc;
11699         struct cudbg_init *cudbg;
11700         void *handle, *buf;
11701 
11702         /* buf is large, don't block if no memory is available */
11703         buf = malloc(dump->len, M_CXGBE, M_NOWAIT | M_ZERO);
11704         if (buf == NULL)
11705                 return (ENOMEM);
11706 
11707         handle = cudbg_alloc_handle();
11708         if (handle == NULL) {
11709                 rc = ENOMEM;
11710                 goto done;
11711         }
11712 
11713         cudbg = cudbg_get_init(handle);
11714         cudbg->adap = sc;
11715         cudbg->print = (cudbg_print_cb)printf;
11716 
11717 #ifndef notyet
11718         device_printf(sc->dev, "%s: wr_flash %u, len %u, data %p.\n",
11719             __func__, dump->wr_flash, dump->len, dump->data);
11720 #endif
11721 
11722         if (dump->wr_flash)
11723                 cudbg->use_flash = 1;
11724         MPASS(sizeof(cudbg->dbg_bitmap) == sizeof(dump->bitmap));
11725         memcpy(cudbg->dbg_bitmap, dump->bitmap, sizeof(cudbg->dbg_bitmap));
11726 
11727         rc = cudbg_collect(handle, buf, &dump->len);
11728         if (rc != 0)
11729                 goto done;
11730 
11731         rc = copyout(buf, dump->data, dump->len);
11732 done:
11733         cudbg_free_handle(handle);
11734         free(buf, M_CXGBE);
11735         return (rc);
11736 }
11737 
11738 static void
11739 free_offload_policy(struct t4_offload_policy *op)
11740 {
11741         struct offload_rule *r;
11742         int i;
11743 
11744         if (op == NULL)
11745                 return;
11746 
11747         r = &op->rule[0];
11748         for (i = 0; i < op->nrules; i++, r++) {
11749                 free(r->bpf_prog.bf_insns, M_CXGBE);
11750         }
11751         free(op->rule, M_CXGBE);
11752         free(op, M_CXGBE);
11753 }
11754 
11755 static int
11756 set_offload_policy(struct adapter *sc, struct t4_offload_policy *uop)
11757 {
11758         int i, rc, len;
11759         struct t4_offload_policy *op, *old;
11760         struct bpf_program *bf;
11761         const struct offload_settings *s;
11762         struct offload_rule *r;
11763         void *u;
11764 
11765         if (!is_offload(sc))
11766                 return (ENODEV);
11767 
11768         if (uop->nrules == 0) {
11769                 /* Delete installed policies. */
11770                 op = NULL;
11771                 goto set_policy;
11772         } else if (uop->nrules > 256) { /* arbitrary */
11773                 return (E2BIG);
11774         }
11775 
11776         /* Copy userspace offload policy to kernel */
11777         op = malloc(sizeof(*op), M_CXGBE, M_ZERO | M_WAITOK);
11778         op->nrules = uop->nrules;
11779         len = op->nrules * sizeof(struct offload_rule);
11780         op->rule = malloc(len, M_CXGBE, M_ZERO | M_WAITOK);
11781         rc = copyin(uop->rule, op->rule, len);
11782         if (rc) {
11783                 free(op->rule, M_CXGBE);
11784                 free(op, M_CXGBE);
11785                 return (rc);
11786         }
11787 
11788         r = &op->rule[0];
11789         for (i = 0; i < op->nrules; i++, r++) {
11790 
11791                 /* Validate open_type */
11792                 if (r->open_type != OPEN_TYPE_LISTEN &&
11793                     r->open_type != OPEN_TYPE_ACTIVE &&
11794                     r->open_type != OPEN_TYPE_PASSIVE &&
11795                     r->open_type != OPEN_TYPE_DONTCARE) {
11796 error:
11797                         /*
11798                          * Rules 0 to i have malloc'd filters that need to be
11799                          * freed.  Rules i+1 to nrules have userspace pointers
11800                          * and should be left alone.
11801                          */
11802                         op->nrules = i;
11803                         free_offload_policy(op);
11804                         return (rc);
11805                 }
11806 
11807                 /* Validate settings */
11808                 s = &r->settings;
11809                 if ((s->offload != 0 && s->offload != 1) ||
11810                     s->cong_algo < -1 || s->cong_algo > CONG_ALG_HIGHSPEED ||
11811                     s->sched_class < -1 ||
11812                     s->sched_class >= sc->params.nsched_cls) {
11813                         rc = EINVAL;
11814                         goto error;
11815                 }
11816 
11817                 bf = &r->bpf_prog;
11818                 u = bf->bf_insns;       /* userspace ptr */
11819                 bf->bf_insns = NULL;
11820                 if (bf->bf_len == 0) {
11821                         /* legal, matches everything */
11822                         continue;
11823                 }
11824                 len = bf->bf_len * sizeof(*bf->bf_insns);
11825                 bf->bf_insns = malloc(len, M_CXGBE, M_ZERO | M_WAITOK);
11826                 rc = copyin(u, bf->bf_insns, len);
11827                 if (rc != 0)
11828                         goto error;
11829 
11830                 if (!bpf_validate(bf->bf_insns, bf->bf_len)) {
11831                         rc = EINVAL;
11832                         goto error;
11833                 }
11834         }
11835 set_policy:
11836         rw_wlock(&sc->policy_lock);
11837         old = sc->policy;
11838         sc->policy = op;
11839         rw_wunlock(&sc->policy_lock);
11840         free_offload_policy(old);
11841 
11842         return (0);
11843 }
11844 
11845 #define MAX_READ_BUF_SIZE (128 * 1024)
11846 static int
11847 read_card_mem(struct adapter *sc, int win, struct t4_mem_range *mr)
11848 {
11849         uint32_t addr, remaining, n;
11850         uint32_t *buf;
11851         int rc;
11852         uint8_t *dst;
11853 
11854         mtx_lock(&sc->reg_lock);
11855         if (hw_off_limits(sc))
11856                 rc = ENXIO;
11857         else
11858                 rc = validate_mem_range(sc, mr->addr, mr->len);
11859         mtx_unlock(&sc->reg_lock);
11860         if (rc != 0)
11861                 return (rc);
11862 
11863         buf = malloc(min(mr->len, MAX_READ_BUF_SIZE), M_CXGBE, M_WAITOK);
11864         addr = mr->addr;
11865         remaining = mr->len;
11866         dst = (void *)mr->data;
11867 
11868         while (remaining) {
11869                 n = min(remaining, MAX_READ_BUF_SIZE);
11870                 mtx_lock(&sc->reg_lock);
11871                 if (hw_off_limits(sc))
11872                         rc = ENXIO;
11873                 else
11874                         read_via_memwin(sc, 2, addr, buf, n);
11875                 mtx_unlock(&sc->reg_lock);
11876                 if (rc != 0)
11877                         break;
11878 
11879                 rc = copyout(buf, dst, n);
11880                 if (rc != 0)
11881                         break;
11882 
11883                 dst += n;
11884                 remaining -= n;
11885                 addr += n;
11886         }
11887 
11888         free(buf, M_CXGBE);
11889         return (rc);
11890 }
11891 #undef MAX_READ_BUF_SIZE
11892 
11893 static int
11894 read_i2c(struct adapter *sc, struct t4_i2c_data *i2cd)
11895 {
11896         int rc;
11897 
11898         if (i2cd->len == 0 || i2cd->port_id >= sc->params.nports)
11899                 return (EINVAL);
11900 
11901         if (i2cd->len > sizeof(i2cd->data))
11902                 return (EFBIG);
11903 
11904         rc = begin_synchronized_op(sc, NULL, SLEEP_OK | INTR_OK, "t4i2crd");
11905         if (rc)
11906                 return (rc);
11907         if (hw_off_limits(sc))
11908                 rc = ENXIO;
11909         else
11910                 rc = -t4_i2c_rd(sc, sc->mbox, i2cd->port_id, i2cd->dev_addr,
11911                     i2cd->offset, i2cd->len, &i2cd->data[0]);
11912         end_synchronized_op(sc, 0);
11913 
11914         return (rc);
11915 }
11916 
11917 static int
11918 clear_stats(struct adapter *sc, u_int port_id)
11919 {
11920         int i, v, chan_map;
11921         struct port_info *pi;
11922         struct vi_info *vi;
11923         struct sge_rxq *rxq;
11924         struct sge_txq *txq;
11925         struct sge_wrq *wrq;
11926 #if defined(TCP_OFFLOAD) || defined(RATELIMIT)
11927         struct sge_ofld_txq *ofld_txq;
11928 #endif
11929 #ifdef TCP_OFFLOAD
11930         struct sge_ofld_rxq *ofld_rxq;
11931 #endif
11932 
11933         if (port_id >= sc->params.nports)
11934                 return (EINVAL);
11935         pi = sc->port[port_id];
11936         if (pi == NULL)
11937                 return (EIO);
11938 
11939         mtx_lock(&sc->reg_lock);
11940         if (!hw_off_limits(sc)) {
11941                 /* MAC stats */
11942                 t4_clr_port_stats(sc, pi->tx_chan);
11943                 if (is_t6(sc)) {
11944                         if (pi->fcs_reg != -1)
11945                                 pi->fcs_base = t4_read_reg64(sc, pi->fcs_reg);
11946                         else
11947                                 pi->stats.rx_fcs_err = 0;
11948                 }
11949                 for_each_vi(pi, v, vi) {
11950                         if (vi->flags & VI_INIT_DONE)
11951                                 t4_clr_vi_stats(sc, vi->vin);
11952                 }
11953                 chan_map = pi->rx_e_chan_map;
11954                 v = 0;  /* reuse */
11955                 while (chan_map) {
11956                         i = ffs(chan_map) - 1;
11957                         t4_write_indirect(sc, A_TP_MIB_INDEX, A_TP_MIB_DATA, &v,
11958                             1, A_TP_MIB_TNL_CNG_DROP_0 + i);
11959                         chan_map &= ~(1 << i);
11960                 }
11961         }
11962         mtx_unlock(&sc->reg_lock);
11963         pi->tx_parse_error = 0;
11964         pi->tnl_cong_drops = 0;
11965 
11966         /*
11967          * Since this command accepts a port, clear stats for
11968          * all VIs on this port.
11969          */
11970         for_each_vi(pi, v, vi) {
11971                 if (vi->flags & VI_INIT_DONE) {
11972 
11973                         for_each_rxq(vi, i, rxq) {
11974 #if defined(INET) || defined(INET6)
11975                                 rxq->lro.lro_queued = 0;
11976                                 rxq->lro.lro_flushed = 0;
11977 #endif
11978                                 rxq->rxcsum = 0;
11979                                 rxq->vlan_extraction = 0;
11980                                 rxq->vxlan_rxcsum = 0;
11981 
11982                                 rxq->fl.cl_allocated = 0;
11983                                 rxq->fl.cl_recycled = 0;
11984                                 rxq->fl.cl_fast_recycled = 0;
11985                         }
11986 
11987                         for_each_txq(vi, i, txq) {
11988                                 txq->txcsum = 0;
11989                                 txq->tso_wrs = 0;
11990                                 txq->vlan_insertion = 0;
11991                                 txq->imm_wrs = 0;
11992                                 txq->sgl_wrs = 0;
11993                                 txq->txpkt_wrs = 0;
11994                                 txq->txpkts0_wrs = 0;
11995                                 txq->txpkts1_wrs = 0;
11996                                 txq->txpkts0_pkts = 0;
11997                                 txq->txpkts1_pkts = 0;
11998                                 txq->txpkts_flush = 0;
11999                                 txq->raw_wrs = 0;
12000                                 txq->vxlan_tso_wrs = 0;
12001                                 txq->vxlan_txcsum = 0;
12002                                 txq->kern_tls_records = 0;
12003                                 txq->kern_tls_short = 0;
12004                                 txq->kern_tls_partial = 0;
12005                                 txq->kern_tls_full = 0;
12006                                 txq->kern_tls_octets = 0;
12007                                 txq->kern_tls_waste = 0;
12008                                 txq->kern_tls_options = 0;
12009                                 txq->kern_tls_header = 0;
12010                                 txq->kern_tls_fin = 0;
12011                                 txq->kern_tls_fin_short = 0;
12012                                 txq->kern_tls_cbc = 0;
12013                                 txq->kern_tls_gcm = 0;
12014                                 mp_ring_reset_stats(txq->r);
12015                         }
12016 
12017 #if defined(TCP_OFFLOAD) || defined(RATELIMIT)
12018                         for_each_ofld_txq(vi, i, ofld_txq) {
12019                                 ofld_txq->wrq.tx_wrs_direct = 0;
12020                                 ofld_txq->wrq.tx_wrs_copied = 0;
12021                                 counter_u64_zero(ofld_txq->tx_iscsi_pdus);
12022                                 counter_u64_zero(ofld_txq->tx_iscsi_octets);
12023                                 counter_u64_zero(ofld_txq->tx_iscsi_iso_wrs);
12024                                 counter_u64_zero(ofld_txq->tx_toe_tls_records);
12025                                 counter_u64_zero(ofld_txq->tx_toe_tls_octets);
12026                         }
12027 #endif
12028 #ifdef TCP_OFFLOAD
12029                         for_each_ofld_rxq(vi, i, ofld_rxq) {
12030                                 ofld_rxq->fl.cl_allocated = 0;
12031                                 ofld_rxq->fl.cl_recycled = 0;
12032                                 ofld_rxq->fl.cl_fast_recycled = 0;
12033                                 counter_u64_zero(
12034                                     ofld_rxq->rx_iscsi_ddp_setup_ok);
12035                                 counter_u64_zero(
12036                                     ofld_rxq->rx_iscsi_ddp_setup_error);
12037                                 ofld_rxq->rx_iscsi_ddp_pdus = 0;
12038                                 ofld_rxq->rx_iscsi_ddp_octets = 0;
12039                                 ofld_rxq->rx_iscsi_fl_pdus = 0;
12040                                 ofld_rxq->rx_iscsi_fl_octets = 0;
12041                                 ofld_rxq->rx_toe_tls_records = 0;
12042                                 ofld_rxq->rx_toe_tls_octets = 0;
12043                         }
12044 #endif
12045 
12046                         if (IS_MAIN_VI(vi)) {
12047                                 wrq = &sc->sge.ctrlq[pi->port_id];
12048                                 wrq->tx_wrs_direct = 0;
12049                                 wrq->tx_wrs_copied = 0;
12050                         }
12051                 }
12052         }
12053 
12054         return (0);
12055 }
12056 
12057 static int
12058 hold_clip_addr(struct adapter *sc, struct t4_clip_addr *ca)
12059 {
12060 #ifdef INET6
12061         struct in6_addr in6;
12062 
12063         bcopy(&ca->addr[0], &in6.s6_addr[0], sizeof(in6.s6_addr));
12064         if (t4_get_clip_entry(sc, &in6, true) != NULL)
12065                 return (0);
12066         else
12067                 return (EIO);
12068 #else
12069         return (ENOTSUP);
12070 #endif
12071 }
12072 
12073 static int
12074 release_clip_addr(struct adapter *sc, struct t4_clip_addr *ca)
12075 {
12076 #ifdef INET6
12077         struct in6_addr in6;
12078 
12079         bcopy(&ca->addr[0], &in6.s6_addr[0], sizeof(in6.s6_addr));
12080         return (t4_release_clip_addr(sc, &in6));
12081 #else
12082         return (ENOTSUP);
12083 #endif
12084 }
12085 
12086 int
12087 t4_os_find_pci_capability(struct adapter *sc, int cap)
12088 {
12089         int i;
12090 
12091         return (pci_find_cap(sc->dev, cap, &i) == 0 ? i : 0);
12092 }
12093 
12094 int
12095 t4_os_pci_save_state(struct adapter *sc)
12096 {
12097         device_t dev;
12098         struct pci_devinfo *dinfo;
12099 
12100         dev = sc->dev;
12101         dinfo = device_get_ivars(dev);
12102 
12103         pci_cfg_save(dev, dinfo, 0);
12104         return (0);
12105 }
12106 
12107 int
12108 t4_os_pci_restore_state(struct adapter *sc)
12109 {
12110         device_t dev;
12111         struct pci_devinfo *dinfo;
12112 
12113         dev = sc->dev;
12114         dinfo = device_get_ivars(dev);
12115 
12116         pci_cfg_restore(dev, dinfo);
12117         return (0);
12118 }
12119 
12120 void
12121 t4_os_portmod_changed(struct port_info *pi)
12122 {
12123         struct adapter *sc = pi->adapter;
12124         struct vi_info *vi;
12125         struct ifnet *ifp;
12126         static const char *mod_str[] = {
12127                 NULL, "LR", "SR", "ER", "TWINAX", "active TWINAX", "LRM"
12128         };
12129 
12130         KASSERT((pi->flags & FIXED_IFMEDIA) == 0,
12131             ("%s: port_type %u", __func__, pi->port_type));
12132 
12133         vi = &pi->vi[0];
12134         if (begin_synchronized_op(sc, vi, HOLD_LOCK, "t4mod") == 0) {
12135                 PORT_LOCK(pi);
12136                 build_medialist(pi);
12137                 if (pi->mod_type != FW_PORT_MOD_TYPE_NONE) {
12138                         fixup_link_config(pi);
12139                         apply_link_config(pi);
12140                 }
12141                 PORT_UNLOCK(pi);
12142                 end_synchronized_op(sc, LOCK_HELD);
12143         }
12144 
12145         ifp = vi->ifp;
12146         if (pi->mod_type == FW_PORT_MOD_TYPE_NONE)
12147                 if_printf(ifp, "transceiver unplugged.\n");
12148         else if (pi->mod_type == FW_PORT_MOD_TYPE_UNKNOWN)
12149                 if_printf(ifp, "unknown transceiver inserted.\n");
12150         else if (pi->mod_type == FW_PORT_MOD_TYPE_NOTSUPPORTED)
12151                 if_printf(ifp, "unsupported transceiver inserted.\n");
12152         else if (pi->mod_type > 0 && pi->mod_type < nitems(mod_str)) {
12153                 if_printf(ifp, "%dGbps %s transceiver inserted.\n",
12154                     port_top_speed(pi), mod_str[pi->mod_type]);
12155         } else {
12156                 if_printf(ifp, "transceiver (type %d) inserted.\n",
12157                     pi->mod_type);
12158         }
12159 }
12160 
12161 void
12162 t4_os_link_changed(struct port_info *pi)
12163 {
12164         struct vi_info *vi;
12165         struct ifnet *ifp;
12166         struct link_config *lc = &pi->link_cfg;
12167         struct adapter *sc = pi->adapter;
12168         int v;
12169 
12170         PORT_LOCK_ASSERT_OWNED(pi);
12171 
12172         if (is_t6(sc)) {
12173                 if (lc->link_ok) {
12174                         if (lc->speed > 25000 ||
12175                             (lc->speed == 25000 && lc->fec == FEC_RS)) {
12176                                 pi->fcs_reg = T5_PORT_REG(pi->tx_chan,
12177                                     A_MAC_PORT_AFRAMECHECKSEQUENCEERRORS);
12178                         } else {
12179                                 pi->fcs_reg = T5_PORT_REG(pi->tx_chan,
12180                                     A_MAC_PORT_MTIP_1G10G_RX_CRCERRORS);
12181                         }
12182                         pi->fcs_base = t4_read_reg64(sc, pi->fcs_reg);
12183                         pi->stats.rx_fcs_err = 0;
12184                 } else {
12185                         pi->fcs_reg = -1;
12186                 }
12187         } else {
12188                 MPASS(pi->fcs_reg != -1);
12189                 MPASS(pi->fcs_base == 0);
12190         }
12191 
12192         for_each_vi(pi, v, vi) {
12193                 ifp = vi->ifp;
12194                 if (ifp == NULL)
12195                         continue;
12196 
12197                 if (lc->link_ok) {
12198                         ifp->if_baudrate = IF_Mbps(lc->speed);
12199                         if_link_state_change(ifp, LINK_STATE_UP);
12200                 } else {
12201                         if_link_state_change(ifp, LINK_STATE_DOWN);
12202                 }
12203         }
12204 }
12205 
12206 void
12207 t4_iterate(void (*func)(struct adapter *, void *), void *arg)
12208 {
12209         struct adapter *sc;
12210 
12211         sx_slock(&t4_list_lock);
12212         SLIST_FOREACH(sc, &t4_list, link) {
12213                 /*
12214                  * func should not make any assumptions about what state sc is
12215                  * in - the only guarantee is that sc->sc_lock is a valid lock.
12216                  */
12217                 func(sc, arg);
12218         }
12219         sx_sunlock(&t4_list_lock);
12220 }
12221 
12222 static int
12223 t4_ioctl(struct cdev *dev, unsigned long cmd, caddr_t data, int fflag,
12224     struct thread *td)
12225 {
12226         int rc;
12227         struct adapter *sc = dev->si_drv1;
12228 
12229         rc = priv_check(td, PRIV_DRIVER);
12230         if (rc != 0)
12231                 return (rc);
12232 
12233         switch (cmd) {
12234         case CHELSIO_T4_GETREG: {
12235                 struct t4_reg *edata = (struct t4_reg *)data;
12236 
12237                 if ((edata->addr & 0x3) != 0 || edata->addr >= sc->mmio_len)
12238                         return (EFAULT);
12239 
12240                 mtx_lock(&sc->reg_lock);
12241                 if (hw_off_limits(sc))
12242                         rc = ENXIO;
12243                 else if (edata->size == 4)
12244                         edata->val = t4_read_reg(sc, edata->addr);
12245                 else if (edata->size == 8)
12246                         edata->val = t4_read_reg64(sc, edata->addr);
12247                 else
12248                         rc = EINVAL;
12249                 mtx_unlock(&sc->reg_lock);
12250 
12251                 break;
12252         }
12253         case CHELSIO_T4_SETREG: {
12254                 struct t4_reg *edata = (struct t4_reg *)data;
12255 
12256                 if ((edata->addr & 0x3) != 0 || edata->addr >= sc->mmio_len)
12257                         return (EFAULT);
12258 
12259                 mtx_lock(&sc->reg_lock);
12260                 if (hw_off_limits(sc))
12261                         rc = ENXIO;
12262                 else if (edata->size == 4) {
12263                         if (edata->val & 0xffffffff00000000)
12264                                 rc = EINVAL;
12265                         t4_write_reg(sc, edata->addr, (uint32_t) edata->val);
12266                 } else if (edata->size == 8)
12267                         t4_write_reg64(sc, edata->addr, edata->val);
12268                 else
12269                         rc = EINVAL;
12270                 mtx_unlock(&sc->reg_lock);
12271 
12272                 break;
12273         }
12274         case CHELSIO_T4_REGDUMP: {
12275                 struct t4_regdump *regs = (struct t4_regdump *)data;
12276                 int reglen = t4_get_regs_len(sc);
12277                 uint8_t *buf;
12278 
12279                 if (regs->len < reglen) {
12280                         regs->len = reglen; /* hint to the caller */
12281                         return (ENOBUFS);
12282                 }
12283 
12284                 regs->len = reglen;
12285                 buf = malloc(reglen, M_CXGBE, M_WAITOK | M_ZERO);
12286                 mtx_lock(&sc->reg_lock);
12287                 if (hw_off_limits(sc))
12288                         rc = ENXIO;
12289                 else
12290                         get_regs(sc, regs, buf);
12291                 mtx_unlock(&sc->reg_lock);
12292                 if (rc == 0)
12293                         rc = copyout(buf, regs->data, reglen);
12294                 free(buf, M_CXGBE);
12295                 break;
12296         }
12297         case CHELSIO_T4_GET_FILTER_MODE:
12298                 rc = get_filter_mode(sc, (uint32_t *)data);
12299                 break;
12300         case CHELSIO_T4_SET_FILTER_MODE:
12301                 rc = set_filter_mode(sc, *(uint32_t *)data);
12302                 break;
12303         case CHELSIO_T4_SET_FILTER_MASK:
12304                 rc = set_filter_mask(sc, *(uint32_t *)data);
12305                 break;
12306         case CHELSIO_T4_GET_FILTER:
12307                 rc = get_filter(sc, (struct t4_filter *)data);
12308                 break;
12309         case CHELSIO_T4_SET_FILTER:
12310                 rc = set_filter(sc, (struct t4_filter *)data);
12311                 break;
12312         case CHELSIO_T4_DEL_FILTER:
12313                 rc = del_filter(sc, (struct t4_filter *)data);
12314                 break;
12315         case CHELSIO_T4_GET_SGE_CONTEXT:
12316                 rc = get_sge_context(sc, (struct t4_sge_context *)data);
12317                 break;
12318         case CHELSIO_T4_LOAD_FW:
12319                 rc = load_fw(sc, (struct t4_data *)data);
12320                 break;
12321         case CHELSIO_T4_GET_MEM:
12322                 rc = read_card_mem(sc, 2, (struct t4_mem_range *)data);
12323                 break;
12324         case CHELSIO_T4_GET_I2C:
12325                 rc = read_i2c(sc, (struct t4_i2c_data *)data);
12326                 break;
12327         case CHELSIO_T4_CLEAR_STATS:
12328                 rc = clear_stats(sc, *(uint32_t *)data);
12329                 break;
12330         case CHELSIO_T4_SCHED_CLASS:
12331                 rc = t4_set_sched_class(sc, (struct t4_sched_params *)data);
12332                 break;
12333         case CHELSIO_T4_SCHED_QUEUE:
12334                 rc = t4_set_sched_queue(sc, (struct t4_sched_queue *)data);
12335                 break;
12336         case CHELSIO_T4_GET_TRACER:
12337                 rc = t4_get_tracer(sc, (struct t4_tracer *)data);
12338                 break;
12339         case CHELSIO_T4_SET_TRACER:
12340                 rc = t4_set_tracer(sc, (struct t4_tracer *)data);
12341                 break;
12342         case CHELSIO_T4_LOAD_CFG:
12343                 rc = load_cfg(sc, (struct t4_data *)data);
12344                 break;
12345         case CHELSIO_T4_LOAD_BOOT:
12346                 rc = load_boot(sc, (struct t4_bootrom *)data);
12347                 break;
12348         case CHELSIO_T4_LOAD_BOOTCFG:
12349                 rc = load_bootcfg(sc, (struct t4_data *)data);
12350                 break;
12351         case CHELSIO_T4_CUDBG_DUMP:
12352                 rc = cudbg_dump(sc, (struct t4_cudbg_dump *)data);
12353                 break;
12354         case CHELSIO_T4_SET_OFLD_POLICY:
12355                 rc = set_offload_policy(sc, (struct t4_offload_policy *)data);
12356                 break;
12357         case CHELSIO_T4_HOLD_CLIP_ADDR:
12358                 rc = hold_clip_addr(sc, (struct t4_clip_addr *)data);
12359                 break;
12360         case CHELSIO_T4_RELEASE_CLIP_ADDR:
12361                 rc = release_clip_addr(sc, (struct t4_clip_addr *)data);
12362                 break;
12363         default:
12364                 rc = ENOTTY;
12365         }
12366 
12367         return (rc);
12368 }
12369 
12370 #ifdef TCP_OFFLOAD
12371 static int
12372 toe_capability(struct vi_info *vi, bool enable)
12373 {
12374         int rc;
12375         struct port_info *pi = vi->pi;
12376         struct adapter *sc = pi->adapter;
12377 
12378         ASSERT_SYNCHRONIZED_OP(sc);
12379 
12380         if (!is_offload(sc))
12381                 return (ENODEV);
12382         if (hw_off_limits(sc))
12383                 return (ENXIO);
12384 
12385         if (enable) {
12386 #ifdef KERN_TLS
12387                 if (sc->flags & KERN_TLS_ON && is_t6(sc)) {
12388                         int i, j, n;
12389                         struct port_info *p;
12390                         struct vi_info *v;
12391 
12392                         /*
12393                          * Reconfigure hardware for TOE if TXTLS is not enabled
12394                          * on any ifnet.
12395                          */
12396                         n = 0;
12397                         for_each_port(sc, i) {
12398                                 p = sc->port[i];
12399                                 for_each_vi(p, j, v) {
12400                                         if (v->ifp->if_capenable & IFCAP_TXTLS) {
12401                                                 CH_WARN(sc,
12402                                                     "%s has NIC TLS enabled.\n",
12403                                                     device_get_nameunit(v->dev));
12404                                                 n++;
12405                                         }
12406                                 }
12407                         }
12408                         if (n > 0) {
12409                                 CH_WARN(sc, "Disable NIC TLS on all interfaces "
12410                                     "associated with this adapter before "
12411                                     "trying to enable TOE.\n");
12412                                 return (EAGAIN);
12413                         }
12414                         rc = t6_config_kern_tls(sc, false);
12415                         if (rc)
12416                                 return (rc);
12417                 }
12418 #endif
12419                 if ((vi->ifp->if_capenable & IFCAP_TOE) != 0) {
12420                         /* TOE is already enabled. */
12421                         return (0);
12422                 }
12423 
12424                 /*
12425                  * We need the port's queues around so that we're able to send
12426                  * and receive CPLs to/from the TOE even if the ifnet for this
12427                  * port has never been UP'd administratively.
12428                  */
12429                 if (!(vi->flags & VI_INIT_DONE) && ((rc = vi_init(vi)) != 0))
12430                         return (rc);
12431                 if (!(pi->vi[0].flags & VI_INIT_DONE) &&
12432                     ((rc = vi_init(&pi->vi[0])) != 0))
12433                         return (rc);
12434 
12435                 if (isset(&sc->offload_map, pi->port_id)) {
12436                         /* TOE is enabled on another VI of this port. */
12437                         pi->uld_vis++;
12438                         return (0);
12439                 }
12440 
12441                 if (!uld_active(sc, ULD_TOM)) {
12442                         rc = t4_activate_uld(sc, ULD_TOM);
12443                         if (rc == EAGAIN) {
12444                                 log(LOG_WARNING,
12445                                     "You must kldload t4_tom.ko before trying "
12446                                     "to enable TOE on a cxgbe interface.\n");
12447                         }
12448                         if (rc != 0)
12449                                 return (rc);
12450                         KASSERT(sc->tom_softc != NULL,
12451                             ("%s: TOM activated but softc NULL", __func__));
12452                         KASSERT(uld_active(sc, ULD_TOM),
12453                             ("%s: TOM activated but flag not set", __func__));
12454                 }
12455 
12456                 /* Activate iWARP and iSCSI too, if the modules are loaded. */
12457                 if (!uld_active(sc, ULD_IWARP))
12458                         (void) t4_activate_uld(sc, ULD_IWARP);
12459                 if (!uld_active(sc, ULD_ISCSI))
12460                         (void) t4_activate_uld(sc, ULD_ISCSI);
12461 
12462                 pi->uld_vis++;
12463                 setbit(&sc->offload_map, pi->port_id);
12464         } else {
12465                 pi->uld_vis--;
12466 
12467                 if (!isset(&sc->offload_map, pi->port_id) || pi->uld_vis > 0)
12468                         return (0);
12469 
12470                 KASSERT(uld_active(sc, ULD_TOM),
12471                     ("%s: TOM never initialized?", __func__));
12472                 clrbit(&sc->offload_map, pi->port_id);
12473         }
12474 
12475         return (0);
12476 }
12477 
12478 /*
12479  * Add an upper layer driver to the global list.
12480  */
12481 int
12482 t4_register_uld(struct uld_info *ui)
12483 {
12484         int rc = 0;
12485         struct uld_info *u;
12486 
12487         sx_xlock(&t4_uld_list_lock);
12488         SLIST_FOREACH(u, &t4_uld_list, link) {
12489             if (u->uld_id == ui->uld_id) {
12490                     rc = EEXIST;
12491                     goto done;
12492             }
12493         }
12494 
12495         SLIST_INSERT_HEAD(&t4_uld_list, ui, link);
12496         ui->refcount = 0;
12497 done:
12498         sx_xunlock(&t4_uld_list_lock);
12499         return (rc);
12500 }
12501 
12502 int
12503 t4_unregister_uld(struct uld_info *ui)
12504 {
12505         int rc = EINVAL;
12506         struct uld_info *u;
12507 
12508         sx_xlock(&t4_uld_list_lock);
12509 
12510         SLIST_FOREACH(u, &t4_uld_list, link) {
12511             if (u == ui) {
12512                     if (ui->refcount > 0) {
12513                             rc = EBUSY;
12514                             goto done;
12515                     }
12516 
12517                     SLIST_REMOVE(&t4_uld_list, ui, uld_info, link);
12518                     rc = 0;
12519                     goto done;
12520             }
12521         }
12522 done:
12523         sx_xunlock(&t4_uld_list_lock);
12524         return (rc);
12525 }
12526 
12527 int
12528 t4_activate_uld(struct adapter *sc, int id)
12529 {
12530         int rc;
12531         struct uld_info *ui;
12532 
12533         ASSERT_SYNCHRONIZED_OP(sc);
12534 
12535         if (id < 0 || id > ULD_MAX)
12536                 return (EINVAL);
12537         rc = EAGAIN;    /* kldoad the module with this ULD and try again. */
12538 
12539         sx_slock(&t4_uld_list_lock);
12540 
12541         SLIST_FOREACH(ui, &t4_uld_list, link) {
12542                 if (ui->uld_id == id) {
12543                         if (!(sc->flags & FULL_INIT_DONE)) {
12544                                 rc = adapter_init(sc);
12545                                 if (rc != 0)
12546                                         break;
12547                         }
12548 
12549                         rc = ui->activate(sc);
12550                         if (rc == 0) {
12551                                 setbit(&sc->active_ulds, id);
12552                                 ui->refcount++;
12553                         }
12554                         break;
12555                 }
12556         }
12557 
12558         sx_sunlock(&t4_uld_list_lock);
12559 
12560         return (rc);
12561 }
12562 
12563 int
12564 t4_deactivate_uld(struct adapter *sc, int id)
12565 {
12566         int rc;
12567         struct uld_info *ui;
12568 
12569         ASSERT_SYNCHRONIZED_OP(sc);
12570 
12571         if (id < 0 || id > ULD_MAX)
12572                 return (EINVAL);
12573         rc = ENXIO;
12574 
12575         sx_slock(&t4_uld_list_lock);
12576 
12577         SLIST_FOREACH(ui, &t4_uld_list, link) {
12578                 if (ui->uld_id == id) {
12579                         rc = ui->deactivate(sc);
12580                         if (rc == 0) {
12581                                 clrbit(&sc->active_ulds, id);
12582                                 ui->refcount--;
12583                         }
12584                         break;
12585                 }
12586         }
12587 
12588         sx_sunlock(&t4_uld_list_lock);
12589 
12590         return (rc);
12591 }
12592 
12593 static int
12594 t4_deactivate_all_uld(struct adapter *sc)
12595 {
12596         int rc;
12597         struct uld_info *ui;
12598 
12599         rc = begin_synchronized_op(sc, NULL, SLEEP_OK, "t4detuld");
12600         if (rc != 0)
12601                 return (ENXIO);
12602 
12603         sx_slock(&t4_uld_list_lock);
12604 
12605         SLIST_FOREACH(ui, &t4_uld_list, link) {
12606                 if (isset(&sc->active_ulds, ui->uld_id)) {
12607                         rc = ui->deactivate(sc);
12608                         if (rc != 0)
12609                                 break;
12610                         clrbit(&sc->active_ulds, ui->uld_id);
12611                         ui->refcount--;
12612                 }
12613         }
12614 
12615         sx_sunlock(&t4_uld_list_lock);
12616         end_synchronized_op(sc, 0);
12617 
12618         return (rc);
12619 }
12620 
12621 static void
12622 t4_async_event(struct adapter *sc)
12623 {
12624         struct uld_info *ui;
12625 
12626         if (begin_synchronized_op(sc, NULL, SLEEP_OK | INTR_OK, "t4async") != 0)
12627                 return;
12628         sx_slock(&t4_uld_list_lock);
12629         SLIST_FOREACH(ui, &t4_uld_list, link) {
12630                 if (ui->uld_id == ULD_IWARP) {
12631                         ui->async_event(sc);
12632                         break;
12633                 }
12634         }
12635         sx_sunlock(&t4_uld_list_lock);
12636         end_synchronized_op(sc, 0);
12637 }
12638 
12639 int
12640 uld_active(struct adapter *sc, int uld_id)
12641 {
12642 
12643         MPASS(uld_id >= 0 && uld_id <= ULD_MAX);
12644 
12645         return (isset(&sc->active_ulds, uld_id));
12646 }
12647 #endif
12648 
12649 #ifdef KERN_TLS
12650 static int
12651 ktls_capability(struct adapter *sc, bool enable)
12652 {
12653         ASSERT_SYNCHRONIZED_OP(sc);
12654 
12655         if (!is_ktls(sc))
12656                 return (ENODEV);
12657         if (!is_t6(sc))
12658                 return (0);
12659         if (hw_off_limits(sc))
12660                 return (ENXIO);
12661 
12662         if (enable) {
12663                 if (sc->flags & KERN_TLS_ON)
12664                         return (0);     /* already on */
12665                 if (sc->offload_map != 0) {
12666                         CH_WARN(sc,
12667                             "Disable TOE on all interfaces associated with "
12668                             "this adapter before trying to enable NIC TLS.\n");
12669                         return (EAGAIN);
12670                 }
12671                 return (t6_config_kern_tls(sc, true));
12672         } else {
12673                 /*
12674                  * Nothing to do for disable.  If TOE is enabled sometime later
12675                  * then toe_capability will reconfigure the hardware.
12676                  */
12677                 return (0);
12678         }
12679 }
12680 #endif
12681 
12682 /*
12683  * t  = ptr to tunable.
12684  * nc = number of CPUs.
12685  * c  = compiled in default for that tunable.
12686  */
12687 static void
12688 calculate_nqueues(int *t, int nc, const int c)
12689 {
12690         int nq;
12691 
12692         if (*t > 0)
12693                 return;
12694         nq = *t < 0 ? -*t : c;
12695         *t = min(nc, nq);
12696 }
12697 
12698 /*
12699  * Come up with reasonable defaults for some of the tunables, provided they're
12700  * not set by the user (in which case we'll use the values as is).
12701  */
12702 static void
12703 tweak_tunables(void)
12704 {
12705         int nc = mp_ncpus;      /* our snapshot of the number of CPUs */
12706 
12707         if (t4_ntxq < 1) {
12708 #ifdef RSS
12709                 t4_ntxq = rss_getnumbuckets();
12710 #else
12711                 calculate_nqueues(&t4_ntxq, nc, NTXQ);
12712 #endif
12713         }
12714 
12715         calculate_nqueues(&t4_ntxq_vi, nc, NTXQ_VI);
12716 
12717         if (t4_nrxq < 1) {
12718 #ifdef RSS
12719                 t4_nrxq = rss_getnumbuckets();
12720 #else
12721                 calculate_nqueues(&t4_nrxq, nc, NRXQ);
12722 #endif
12723         }
12724 
12725         calculate_nqueues(&t4_nrxq_vi, nc, NRXQ_VI);
12726 
12727 #if defined(TCP_OFFLOAD) || defined(RATELIMIT)
12728         calculate_nqueues(&t4_nofldtxq, nc, NOFLDTXQ);
12729         calculate_nqueues(&t4_nofldtxq_vi, nc, NOFLDTXQ_VI);
12730 #endif
12731 #ifdef TCP_OFFLOAD
12732         calculate_nqueues(&t4_nofldrxq, nc, NOFLDRXQ);
12733         calculate_nqueues(&t4_nofldrxq_vi, nc, NOFLDRXQ_VI);
12734 #endif
12735 
12736 #if defined(TCP_OFFLOAD) || defined(KERN_TLS)
12737         if (t4_toecaps_allowed == -1)
12738                 t4_toecaps_allowed = FW_CAPS_CONFIG_TOE;
12739 #else
12740         if (t4_toecaps_allowed == -1)
12741                 t4_toecaps_allowed = 0;
12742 #endif
12743 
12744 #ifdef TCP_OFFLOAD
12745         if (t4_rdmacaps_allowed == -1) {
12746                 t4_rdmacaps_allowed = FW_CAPS_CONFIG_RDMA_RDDP |
12747                     FW_CAPS_CONFIG_RDMA_RDMAC;
12748         }
12749 
12750         if (t4_iscsicaps_allowed == -1) {
12751                 t4_iscsicaps_allowed = FW_CAPS_CONFIG_ISCSI_INITIATOR_PDU |
12752                     FW_CAPS_CONFIG_ISCSI_TARGET_PDU |
12753                     FW_CAPS_CONFIG_ISCSI_T10DIF;
12754         }
12755 
12756         if (t4_tmr_idx_ofld < 0 || t4_tmr_idx_ofld >= SGE_NTIMERS)
12757                 t4_tmr_idx_ofld = TMR_IDX_OFLD;
12758 
12759         if (t4_pktc_idx_ofld < -1 || t4_pktc_idx_ofld >= SGE_NCOUNTERS)
12760                 t4_pktc_idx_ofld = PKTC_IDX_OFLD;
12761 #else
12762         if (t4_rdmacaps_allowed == -1)
12763                 t4_rdmacaps_allowed = 0;
12764 
12765         if (t4_iscsicaps_allowed == -1)
12766                 t4_iscsicaps_allowed = 0;
12767 #endif
12768 
12769 #ifdef DEV_NETMAP
12770         calculate_nqueues(&t4_nnmtxq, nc, NNMTXQ);
12771         calculate_nqueues(&t4_nnmrxq, nc, NNMRXQ);
12772         calculate_nqueues(&t4_nnmtxq_vi, nc, NNMTXQ_VI);
12773         calculate_nqueues(&t4_nnmrxq_vi, nc, NNMRXQ_VI);
12774 #endif
12775 
12776         if (t4_tmr_idx < 0 || t4_tmr_idx >= SGE_NTIMERS)
12777                 t4_tmr_idx = TMR_IDX;
12778 
12779         if (t4_pktc_idx < -1 || t4_pktc_idx >= SGE_NCOUNTERS)
12780                 t4_pktc_idx = PKTC_IDX;
12781 
12782         if (t4_qsize_txq < 128)
12783                 t4_qsize_txq = 128;
12784 
12785         if (t4_qsize_rxq < 128)
12786                 t4_qsize_rxq = 128;
12787         while (t4_qsize_rxq & 7)
12788                 t4_qsize_rxq++;
12789 
12790         t4_intr_types &= INTR_MSIX | INTR_MSI | INTR_INTX;
12791 
12792         /*
12793          * Number of VIs to create per-port.  The first VI is the "main" regular
12794          * VI for the port.  The rest are additional virtual interfaces on the
12795          * same physical port.  Note that the main VI does not have native
12796          * netmap support but the extra VIs do.
12797          *
12798          * Limit the number of VIs per port to the number of available
12799          * MAC addresses per port.
12800          */
12801         if (t4_num_vis < 1)
12802                 t4_num_vis = 1;
12803         if (t4_num_vis > nitems(vi_mac_funcs)) {
12804                 t4_num_vis = nitems(vi_mac_funcs);
12805                 printf("cxgbe: number of VIs limited to %d\n", t4_num_vis);
12806         }
12807 
12808         if (pcie_relaxed_ordering < 0 || pcie_relaxed_ordering > 2) {
12809                 pcie_relaxed_ordering = 1;
12810 #if defined(__i386__) || defined(__amd64__)
12811                 if (cpu_vendor_id == CPU_VENDOR_INTEL)
12812                         pcie_relaxed_ordering = 0;
12813 #endif
12814         }
12815 }
12816 
12817 #ifdef DDB
12818 static void
12819 t4_dump_tcb(struct adapter *sc, int tid)
12820 {
12821         uint32_t base, i, j, off, pf, reg, save, tcb_addr, win_pos;
12822 
12823         reg = PCIE_MEM_ACCESS_REG(A_PCIE_MEM_ACCESS_OFFSET, 2);
12824         save = t4_read_reg(sc, reg);
12825         base = sc->memwin[2].mw_base;
12826 
12827         /* Dump TCB for the tid */
12828         tcb_addr = t4_read_reg(sc, A_TP_CMM_TCB_BASE);
12829         tcb_addr += tid * TCB_SIZE;
12830 
12831         if (is_t4(sc)) {
12832                 pf = 0;
12833                 win_pos = tcb_addr & ~0xf;      /* start must be 16B aligned */
12834         } else {
12835                 pf = V_PFNUM(sc->pf);
12836                 win_pos = tcb_addr & ~0x7f;     /* start must be 128B aligned */
12837         }
12838         t4_write_reg(sc, reg, win_pos | pf);
12839         t4_read_reg(sc, reg);
12840 
12841         off = tcb_addr - win_pos;
12842         for (i = 0; i < 4; i++) {
12843                 uint32_t buf[8];
12844                 for (j = 0; j < 8; j++, off += 4)
12845                         buf[j] = htonl(t4_read_reg(sc, base + off));
12846 
12847                 db_printf("%08x %08x %08x %08x %08x %08x %08x %08x\n",
12848                     buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], buf[6],
12849                     buf[7]);
12850         }
12851 
12852         t4_write_reg(sc, reg, save);
12853         t4_read_reg(sc, reg);
12854 }
12855 
12856 static void
12857 t4_dump_devlog(struct adapter *sc)
12858 {
12859         struct devlog_params *dparams = &sc->params.devlog;
12860         struct fw_devlog_e e;
12861         int i, first, j, m, nentries, rc;
12862         uint64_t ftstamp = UINT64_MAX;
12863 
12864         if (dparams->start == 0) {
12865                 db_printf("devlog params not valid\n");
12866                 return;
12867         }
12868 
12869         nentries = dparams->size / sizeof(struct fw_devlog_e);
12870         m = fwmtype_to_hwmtype(dparams->memtype);
12871 
12872         /* Find the first entry. */
12873         first = -1;
12874         for (i = 0; i < nentries && !db_pager_quit; i++) {
12875                 rc = -t4_mem_read(sc, m, dparams->start + i * sizeof(e),
12876                     sizeof(e), (void *)&e);
12877                 if (rc != 0)
12878                         break;
12879 
12880                 if (e.timestamp == 0)
12881                         break;
12882 
12883                 e.timestamp = be64toh(e.timestamp);
12884                 if (e.timestamp < ftstamp) {
12885                         ftstamp = e.timestamp;
12886                         first = i;
12887                 }
12888         }
12889 
12890         if (first == -1)
12891                 return;
12892 
12893         i = first;
12894         do {
12895                 rc = -t4_mem_read(sc, m, dparams->start + i * sizeof(e),
12896                     sizeof(e), (void *)&e);
12897                 if (rc != 0)
12898                         return;
12899 
12900                 if (e.timestamp == 0)
12901                         return;
12902 
12903                 e.timestamp = be64toh(e.timestamp);
12904                 e.seqno = be32toh(e.seqno);
12905                 for (j = 0; j < 8; j++)
12906                         e.params[j] = be32toh(e.params[j]);
12907 
12908                 db_printf("%10d  %15ju  %8s  %8s  ",
12909                     e.seqno, e.timestamp,
12910                     (e.level < nitems(devlog_level_strings) ?
12911                         devlog_level_strings[e.level] : "UNKNOWN"),
12912                     (e.facility < nitems(devlog_facility_strings) ?
12913                         devlog_facility_strings[e.facility] : "UNKNOWN"));
12914                 db_printf(e.fmt, e.params[0], e.params[1], e.params[2],
12915                     e.params[3], e.params[4], e.params[5], e.params[6],
12916                     e.params[7]);
12917 
12918                 if (++i == nentries)
12919                         i = 0;
12920         } while (i != first && !db_pager_quit);
12921 }
12922 
12923 static struct db_command_table db_t4_table = LIST_HEAD_INITIALIZER(db_t4_table);
12924 _DB_SET(_show, t4, NULL, db_show_table, 0, &db_t4_table);
12925 
12926 DB_FUNC(devlog, db_show_devlog, db_t4_table, CS_OWN, NULL)
12927 {
12928         device_t dev;
12929         int t;
12930         bool valid;
12931 
12932         valid = false;
12933         t = db_read_token();
12934         if (t == tIDENT) {
12935                 dev = device_lookup_by_name(db_tok_string);
12936                 valid = true;
12937         }
12938         db_skip_to_eol();
12939         if (!valid) {
12940                 db_printf("usage: show t4 devlog <nexus>\n");
12941                 return;
12942         }
12943 
12944         if (dev == NULL) {
12945                 db_printf("device not found\n");
12946                 return;
12947         }
12948 
12949         t4_dump_devlog(device_get_softc(dev));
12950 }
12951 
12952 DB_FUNC(tcb, db_show_t4tcb, db_t4_table, CS_OWN, NULL)
12953 {
12954         device_t dev;
12955         int radix, tid, t;
12956         bool valid;
12957 
12958         valid = false;
12959         radix = db_radix;
12960         db_radix = 10;
12961         t = db_read_token();
12962         if (t == tIDENT) {
12963                 dev = device_lookup_by_name(db_tok_string);
12964                 t = db_read_token();
12965                 if (t == tNUMBER) {
12966                         tid = db_tok_number;
12967                         valid = true;
12968                 }
12969         }
12970         db_radix = radix;
12971         db_skip_to_eol();
12972         if (!valid) {
12973                 db_printf("usage: show t4 tcb <nexus> <tid>\n");
12974                 return;
12975         }
12976 
12977         if (dev == NULL) {
12978                 db_printf("device not found\n");
12979                 return;
12980         }
12981         if (tid < 0) {
12982                 db_printf("invalid tid\n");
12983                 return;
12984         }
12985 
12986         t4_dump_tcb(device_get_softc(dev), tid);
12987 }
12988 #endif
12989 
12990 static eventhandler_tag vxlan_start_evtag;
12991 static eventhandler_tag vxlan_stop_evtag;
12992 
12993 struct vxlan_evargs {
12994         struct ifnet *ifp;
12995         uint16_t port;
12996 };
12997 
12998 static void
12999 enable_vxlan_rx(struct adapter *sc)
13000 {
13001         int i, rc;
13002         struct port_info *pi;
13003         uint8_t match_all_mac[ETHER_ADDR_LEN] = {0};
13004 
13005         ASSERT_SYNCHRONIZED_OP(sc);
13006 
13007         t4_write_reg(sc, A_MPS_RX_VXLAN_TYPE, V_VXLAN(sc->vxlan_port) |
13008             F_VXLAN_EN);
13009         for_each_port(sc, i) {
13010                 pi = sc->port[i];
13011                 if (pi->vxlan_tcam_entry == true)
13012                         continue;
13013                 rc = t4_alloc_raw_mac_filt(sc, pi->vi[0].viid, match_all_mac,
13014                     match_all_mac, sc->rawf_base + pi->port_id, 1, pi->port_id,
13015                     true);
13016                 if (rc < 0) {
13017                         rc = -rc;
13018                         CH_ERR(&pi->vi[0],
13019                             "failed to add VXLAN TCAM entry: %d.\n", rc);
13020                 } else {
13021                         MPASS(rc == sc->rawf_base + pi->port_id);
13022                         pi->vxlan_tcam_entry = true;
13023                 }
13024         }
13025 }
13026 
13027 static void
13028 t4_vxlan_start(struct adapter *sc, void *arg)
13029 {
13030         struct vxlan_evargs *v = arg;
13031 
13032         if (sc->nrawf == 0 || chip_id(sc) <= CHELSIO_T5)
13033                 return;
13034         if (begin_synchronized_op(sc, NULL, SLEEP_OK | INTR_OK, "t4vxst") != 0)
13035                 return;
13036 
13037         if (sc->vxlan_refcount == 0) {
13038                 sc->vxlan_port = v->port;
13039                 sc->vxlan_refcount = 1;
13040                 if (!hw_off_limits(sc))
13041                         enable_vxlan_rx(sc);
13042         } else if (sc->vxlan_port == v->port) {
13043                 sc->vxlan_refcount++;
13044         } else {
13045                 CH_ERR(sc, "VXLAN already configured on port  %d; "
13046                     "ignoring attempt to configure it on port %d\n",
13047                     sc->vxlan_port, v->port);
13048         }
13049         end_synchronized_op(sc, 0);
13050 }
13051 
13052 static void
13053 t4_vxlan_stop(struct adapter *sc, void *arg)
13054 {
13055         struct vxlan_evargs *v = arg;
13056 
13057         if (sc->nrawf == 0 || chip_id(sc) <= CHELSIO_T5)
13058                 return;
13059         if (begin_synchronized_op(sc, NULL, SLEEP_OK | INTR_OK, "t4vxsp") != 0)
13060                 return;
13061 
13062         /*
13063          * VXLANs may have been configured before the driver was loaded so we
13064          * may see more stops than starts.  This is not handled cleanly but at
13065          * least we keep the refcount sane.
13066          */
13067         if (sc->vxlan_port != v->port)
13068                 goto done;
13069         if (sc->vxlan_refcount == 0) {
13070                 CH_ERR(sc, "VXLAN operation on port %d was stopped earlier; "
13071                     "ignoring attempt to stop it again.\n", sc->vxlan_port);
13072         } else if (--sc->vxlan_refcount == 0 && !hw_off_limits(sc))
13073                 t4_set_reg_field(sc, A_MPS_RX_VXLAN_TYPE, F_VXLAN_EN, 0);
13074 done:
13075         end_synchronized_op(sc, 0);
13076 }
13077 
13078 static void
13079 t4_vxlan_start_handler(void *arg __unused, struct ifnet *ifp,
13080     sa_family_t family, u_int port)
13081 {
13082         struct vxlan_evargs v;
13083 
13084         MPASS(family == AF_INET || family == AF_INET6);
13085         v.ifp = ifp;
13086         v.port = port;
13087 
13088         t4_iterate(t4_vxlan_start, &v);
13089 }
13090 
13091 static void
13092 t4_vxlan_stop_handler(void *arg __unused, struct ifnet *ifp, sa_family_t family,
13093     u_int port)
13094 {
13095         struct vxlan_evargs v;
13096 
13097         MPASS(family == AF_INET || family == AF_INET6);
13098         v.ifp = ifp;
13099         v.port = port;
13100 
13101         t4_iterate(t4_vxlan_stop, &v);
13102 }
13103 
13104 
13105 static struct sx mlu;   /* mod load unload */
13106 SX_SYSINIT(cxgbe_mlu, &mlu, "cxgbe mod load/unload");
13107 
13108 static int
13109 mod_event(module_t mod, int cmd, void *arg)
13110 {
13111         int rc = 0;
13112         static int loaded = 0;
13113 
13114         switch (cmd) {
13115         case MOD_LOAD:
13116                 sx_xlock(&mlu);
13117                 if (loaded++ == 0) {
13118                         t4_sge_modload();
13119                         t4_register_shared_cpl_handler(CPL_SET_TCB_RPL,
13120                             t4_filter_rpl, CPL_COOKIE_FILTER);
13121                         t4_register_shared_cpl_handler(CPL_L2T_WRITE_RPL,
13122                             do_l2t_write_rpl, CPL_COOKIE_FILTER);
13123                         t4_register_shared_cpl_handler(CPL_ACT_OPEN_RPL,
13124                             t4_hashfilter_ao_rpl, CPL_COOKIE_HASHFILTER);
13125                         t4_register_shared_cpl_handler(CPL_SET_TCB_RPL,
13126                             t4_hashfilter_tcb_rpl, CPL_COOKIE_HASHFILTER);
13127                         t4_register_shared_cpl_handler(CPL_ABORT_RPL_RSS,
13128                             t4_del_hashfilter_rpl, CPL_COOKIE_HASHFILTER);
13129                         t4_register_cpl_handler(CPL_TRACE_PKT, t4_trace_pkt);
13130                         t4_register_cpl_handler(CPL_T5_TRACE_PKT, t5_trace_pkt);
13131                         t4_register_cpl_handler(CPL_SMT_WRITE_RPL,
13132                             do_smt_write_rpl);
13133                         sx_init(&t4_list_lock, "T4/T5 adapters");
13134                         SLIST_INIT(&t4_list);
13135                         callout_init(&fatal_callout, 1);
13136 #ifdef TCP_OFFLOAD
13137                         sx_init(&t4_uld_list_lock, "T4/T5 ULDs");
13138                         SLIST_INIT(&t4_uld_list);
13139 #endif
13140 #ifdef INET6
13141                         t4_clip_modload();
13142 #endif
13143 #ifdef KERN_TLS
13144                         t6_ktls_modload();
13145 #endif
13146                         t4_tracer_modload();
13147                         tweak_tunables();
13148                         vxlan_start_evtag =
13149                             EVENTHANDLER_REGISTER(vxlan_start,
13150                                 t4_vxlan_start_handler, NULL,
13151                                 EVENTHANDLER_PRI_ANY);
13152                         vxlan_stop_evtag =
13153                             EVENTHANDLER_REGISTER(vxlan_stop,
13154                                 t4_vxlan_stop_handler, NULL,
13155                                 EVENTHANDLER_PRI_ANY);
13156                         reset_tq = taskqueue_create("t4_rst_tq", M_WAITOK,
13157                             taskqueue_thread_enqueue, &reset_tq);
13158                         taskqueue_start_threads(&reset_tq, 1, PI_SOFT,
13159                             "t4_rst_thr");
13160                 }
13161                 sx_xunlock(&mlu);
13162                 break;
13163 
13164         case MOD_UNLOAD:
13165                 sx_xlock(&mlu);
13166                 if (--loaded == 0) {
13167                         int tries;
13168 
13169                         taskqueue_free(reset_tq);
13170                         sx_slock(&t4_list_lock);
13171                         if (!SLIST_EMPTY(&t4_list)) {
13172                                 rc = EBUSY;
13173                                 sx_sunlock(&t4_list_lock);
13174                                 goto done_unload;
13175                         }
13176 #ifdef TCP_OFFLOAD
13177                         sx_slock(&t4_uld_list_lock);
13178                         if (!SLIST_EMPTY(&t4_uld_list)) {
13179                                 rc = EBUSY;
13180                                 sx_sunlock(&t4_uld_list_lock);
13181                                 sx_sunlock(&t4_list_lock);
13182                                 goto done_unload;
13183                         }
13184 #endif
13185                         tries = 0;
13186                         while (tries++ < 5 && t4_sge_extfree_refs() != 0) {
13187                                 uprintf("%ju clusters with custom free routine "
13188                                     "still is use.\n", t4_sge_extfree_refs());
13189                                 pause("t4unload", 2 * hz);
13190                         }
13191 #ifdef TCP_OFFLOAD
13192                         sx_sunlock(&t4_uld_list_lock);
13193 #endif
13194                         sx_sunlock(&t4_list_lock);
13195 
13196                         if (t4_sge_extfree_refs() == 0) {
13197                                 EVENTHANDLER_DEREGISTER(vxlan_start,
13198                                     vxlan_start_evtag);
13199                                 EVENTHANDLER_DEREGISTER(vxlan_stop,
13200                                     vxlan_stop_evtag);
13201                                 t4_tracer_modunload();
13202 #ifdef KERN_TLS
13203                                 t6_ktls_modunload();
13204 #endif
13205 #ifdef INET6
13206                                 t4_clip_modunload();
13207 #endif
13208 #ifdef TCP_OFFLOAD
13209                                 sx_destroy(&t4_uld_list_lock);
13210 #endif
13211                                 sx_destroy(&t4_list_lock);
13212                                 t4_sge_modunload();
13213                                 loaded = 0;
13214                         } else {
13215                                 rc = EBUSY;
13216                                 loaded++;       /* undo earlier decrement */
13217                         }
13218                 }
13219 done_unload:
13220                 sx_xunlock(&mlu);
13221                 break;
13222         }
13223 
13224         return (rc);
13225 }
13226 
13227 DRIVER_MODULE(t4nex, pci, t4_driver, mod_event, 0);
13228 MODULE_VERSION(t4nex, 1);
13229 MODULE_DEPEND(t4nex, firmware, 1, 1, 1);
13230 #ifdef DEV_NETMAP
13231 MODULE_DEPEND(t4nex, netmap, 1, 1, 1);
13232 #endif /* DEV_NETMAP */
13233 
13234 DRIVER_MODULE(t5nex, pci, t5_driver, mod_event, 0);
13235 MODULE_VERSION(t5nex, 1);
13236 MODULE_DEPEND(t5nex, firmware, 1, 1, 1);
13237 #ifdef DEV_NETMAP
13238 MODULE_DEPEND(t5nex, netmap, 1, 1, 1);
13239 #endif /* DEV_NETMAP */
13240 
13241 DRIVER_MODULE(t6nex, pci, t6_driver, mod_event, 0);
13242 MODULE_VERSION(t6nex, 1);
13243 MODULE_DEPEND(t6nex, firmware, 1, 1, 1);
13244 #ifdef DEV_NETMAP
13245 MODULE_DEPEND(t6nex, netmap, 1, 1, 1);
13246 #endif /* DEV_NETMAP */
13247 
13248 DRIVER_MODULE(cxgbe, t4nex, cxgbe_driver, 0, 0);
13249 MODULE_VERSION(cxgbe, 1);
13250 
13251 DRIVER_MODULE(cxl, t5nex, cxl_driver, 0, 0);
13252 MODULE_VERSION(cxl, 1);
13253 
13254 DRIVER_MODULE(cc, t6nex, cc_driver, 0, 0);
13255 MODULE_VERSION(cc, 1);
13256 
13257 DRIVER_MODULE(vcxgbe, cxgbe, vcxgbe_driver, 0, 0);
13258 MODULE_VERSION(vcxgbe, 1);
13259 
13260 DRIVER_MODULE(vcxl, cxl, vcxl_driver, 0, 0);
13261 MODULE_VERSION(vcxl, 1);
13262 
13263 DRIVER_MODULE(vcc, cc, vcc_driver, 0, 0);
13264 MODULE_VERSION(vcc, 1);

Cache object: 8976a320b4e3494a0c6b9e8a4b86ba2c


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