1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2010-2016 Solarflare Communications Inc.
5 * All rights reserved.
6 *
7 * This software was developed in part by Philip Paeps under contract for
8 * Solarflare Communications, Inc.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions are met:
12 *
13 * 1. Redistributions of source code must retain the above copyright notice,
14 * this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright notice,
16 * this list of conditions and the following disclaimer in the documentation
17 * and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
20 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
29 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 *
31 * The views and conclusions contained in the software and documentation are
32 * those of the authors and should not be interpreted as representing official
33 * policies, either expressed or implied, of the FreeBSD Project.
34 */
35
36 #include <sys/cdefs.h>
37 __FBSDID("$FreeBSD$");
38
39 #include <sys/types.h>
40 #include <sys/limits.h>
41 #include <net/ethernet.h>
42 #include <net/if_dl.h>
43
44 #include "common/efx.h"
45
46 #include "sfxge.h"
47
48 #define SFXGE_PARAM_STATS_UPDATE_PERIOD_MS \
49 SFXGE_PARAM(stats_update_period_ms)
50 static int sfxge_stats_update_period_ms = SFXGE_STATS_UPDATE_PERIOD_MS;
51 TUNABLE_INT(SFXGE_PARAM_STATS_UPDATE_PERIOD_MS,
52 &sfxge_stats_update_period_ms);
53 SYSCTL_INT(_hw_sfxge, OID_AUTO, stats_update_period_ms, CTLFLAG_RDTUN,
54 &sfxge_stats_update_period_ms, 0,
55 "netstat interface statistics update period in milliseconds");
56
57 static int sfxge_phy_cap_mask(struct sfxge_softc *, int, uint32_t *);
58
59 static int
60 sfxge_mac_stat_update(struct sfxge_softc *sc)
61 {
62 struct sfxge_port *port = &sc->port;
63 efsys_mem_t *esmp = &(port->mac_stats.dma_buf);
64 clock_t now;
65 unsigned int min_ticks;
66 unsigned int count;
67 int rc;
68
69 SFXGE_PORT_LOCK_ASSERT_OWNED(port);
70
71 if (__predict_false(port->init_state != SFXGE_PORT_STARTED)) {
72 rc = 0;
73 goto out;
74 }
75
76 min_ticks = (unsigned int)hz * port->stats_update_period_ms / 1000;
77
78 now = ticks;
79 if ((unsigned int)(now - port->mac_stats.update_time) < min_ticks) {
80 rc = 0;
81 goto out;
82 }
83
84 port->mac_stats.update_time = now;
85
86 /* If we're unlucky enough to read statistics wduring the DMA, wait
87 * up to 10ms for it to finish (typically takes <500us) */
88 for (count = 0; count < 100; ++count) {
89 EFSYS_PROBE1(wait, unsigned int, count);
90
91 /* Try to update the cached counters */
92 if ((rc = efx_mac_stats_update(sc->enp, esmp,
93 port->mac_stats.decode_buf, NULL)) != EAGAIN)
94 goto out;
95
96 DELAY(100);
97 }
98
99 rc = ETIMEDOUT;
100 out:
101 return (rc);
102 }
103
104 uint64_t
105 sfxge_get_counter(struct ifnet *ifp, ift_counter c)
106 {
107 struct sfxge_softc *sc = ifp->if_softc;
108 uint64_t *mac_stats;
109 uint64_t val;
110
111 SFXGE_PORT_LOCK(&sc->port);
112
113 /* Ignore error and use old values */
114 (void)sfxge_mac_stat_update(sc);
115
116 mac_stats = (uint64_t *)sc->port.mac_stats.decode_buf;
117
118 switch (c) {
119 case IFCOUNTER_IPACKETS:
120 val = mac_stats[EFX_MAC_RX_PKTS];
121 break;
122 case IFCOUNTER_IERRORS:
123 val = mac_stats[EFX_MAC_RX_ERRORS];
124 break;
125 case IFCOUNTER_OPACKETS:
126 val = mac_stats[EFX_MAC_TX_PKTS];
127 break;
128 case IFCOUNTER_OERRORS:
129 val = mac_stats[EFX_MAC_TX_ERRORS];
130 break;
131 case IFCOUNTER_COLLISIONS:
132 val = mac_stats[EFX_MAC_TX_SGL_COL_PKTS] +
133 mac_stats[EFX_MAC_TX_MULT_COL_PKTS] +
134 mac_stats[EFX_MAC_TX_EX_COL_PKTS] +
135 mac_stats[EFX_MAC_TX_LATE_COL_PKTS];
136 break;
137 case IFCOUNTER_IBYTES:
138 val = mac_stats[EFX_MAC_RX_OCTETS];
139 break;
140 case IFCOUNTER_OBYTES:
141 val = mac_stats[EFX_MAC_TX_OCTETS];
142 break;
143 case IFCOUNTER_OMCASTS:
144 val = mac_stats[EFX_MAC_TX_MULTICST_PKTS] +
145 mac_stats[EFX_MAC_TX_BRDCST_PKTS];
146 break;
147 case IFCOUNTER_OQDROPS:
148 SFXGE_PORT_UNLOCK(&sc->port);
149 return (sfxge_tx_get_drops(sc));
150 case IFCOUNTER_IMCASTS:
151 /* if_imcasts is maintained in net/if_ethersubr.c */
152 case IFCOUNTER_IQDROPS:
153 /* if_iqdrops is maintained in net/if_ethersubr.c */
154 case IFCOUNTER_NOPROTO:
155 /* if_noproto is maintained in net/if_ethersubr.c */
156 default:
157 SFXGE_PORT_UNLOCK(&sc->port);
158 return (if_get_counter_default(ifp, c));
159 }
160
161 SFXGE_PORT_UNLOCK(&sc->port);
162
163 return (val);
164 }
165
166 static int
167 sfxge_mac_stat_handler(SYSCTL_HANDLER_ARGS)
168 {
169 struct sfxge_softc *sc = arg1;
170 unsigned int id = arg2;
171 int rc;
172 uint64_t val;
173
174 SFXGE_PORT_LOCK(&sc->port);
175 if ((rc = sfxge_mac_stat_update(sc)) == 0)
176 val = ((uint64_t *)sc->port.mac_stats.decode_buf)[id];
177 SFXGE_PORT_UNLOCK(&sc->port);
178
179 if (rc == 0)
180 rc = SYSCTL_OUT(req, &val, sizeof(val));
181 return (rc);
182 }
183
184 static void
185 sfxge_mac_stat_init(struct sfxge_softc *sc)
186 {
187 struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->dev);
188 struct sysctl_oid_list *stat_list;
189 unsigned int id;
190 const char *name;
191
192 stat_list = SYSCTL_CHILDREN(sc->stats_node);
193
194 /* Initialise the named stats */
195 for (id = 0; id < EFX_MAC_NSTATS; id++) {
196 name = efx_mac_stat_name(sc->enp, id);
197 SYSCTL_ADD_PROC(ctx, stat_list, OID_AUTO, name,
198 CTLTYPE_U64 | CTLFLAG_RD | CTLFLAG_MPSAFE,
199 sc, id, sfxge_mac_stat_handler, "Q", "");
200 }
201 }
202
203 #ifdef SFXGE_HAVE_PAUSE_MEDIAOPTS
204
205 static unsigned int
206 sfxge_port_wanted_fc(struct sfxge_softc *sc)
207 {
208 struct ifmedia_entry *ifm = sc->media.ifm_cur;
209
210 if (ifm->ifm_media == (IFM_ETHER | IFM_AUTO))
211 return (EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE);
212 return (((ifm->ifm_media & IFM_ETH_RXPAUSE) ? EFX_FCNTL_RESPOND : 0) |
213 ((ifm->ifm_media & IFM_ETH_TXPAUSE) ? EFX_FCNTL_GENERATE : 0));
214 }
215
216 static unsigned int
217 sfxge_port_link_fc_ifm(struct sfxge_softc *sc)
218 {
219 unsigned int wanted_fc, link_fc;
220
221 efx_mac_fcntl_get(sc->enp, &wanted_fc, &link_fc);
222 return ((link_fc & EFX_FCNTL_RESPOND) ? IFM_ETH_RXPAUSE : 0) |
223 ((link_fc & EFX_FCNTL_GENERATE) ? IFM_ETH_TXPAUSE : 0);
224 }
225
226 #else /* !SFXGE_HAVE_PAUSE_MEDIAOPTS */
227
228 static unsigned int
229 sfxge_port_wanted_fc(struct sfxge_softc *sc)
230 {
231 return (sc->port.wanted_fc);
232 }
233
234 static unsigned int
235 sfxge_port_link_fc_ifm(struct sfxge_softc *sc)
236 {
237 return (0);
238 }
239
240 static int
241 sfxge_port_wanted_fc_handler(SYSCTL_HANDLER_ARGS)
242 {
243 struct sfxge_softc *sc;
244 struct sfxge_port *port;
245 unsigned int fcntl;
246 int error;
247
248 sc = arg1;
249 port = &sc->port;
250
251 if (req->newptr != NULL) {
252 if ((error = SYSCTL_IN(req, &fcntl, sizeof(fcntl))) != 0)
253 return (error);
254
255 SFXGE_PORT_LOCK(port);
256
257 if (port->wanted_fc != fcntl) {
258 if (port->init_state == SFXGE_PORT_STARTED)
259 error = efx_mac_fcntl_set(sc->enp,
260 port->wanted_fc,
261 B_TRUE);
262 if (error == 0)
263 port->wanted_fc = fcntl;
264 }
265
266 SFXGE_PORT_UNLOCK(port);
267 } else {
268 SFXGE_PORT_LOCK(port);
269 fcntl = port->wanted_fc;
270 SFXGE_PORT_UNLOCK(port);
271
272 error = SYSCTL_OUT(req, &fcntl, sizeof(fcntl));
273 }
274
275 return (error);
276 }
277
278 static int
279 sfxge_port_link_fc_handler(SYSCTL_HANDLER_ARGS)
280 {
281 struct sfxge_softc *sc;
282 struct sfxge_port *port;
283 unsigned int wanted_fc, link_fc;
284
285 sc = arg1;
286 port = &sc->port;
287
288 SFXGE_PORT_LOCK(port);
289 if (__predict_true(port->init_state == SFXGE_PORT_STARTED) &&
290 SFXGE_LINK_UP(sc))
291 efx_mac_fcntl_get(sc->enp, &wanted_fc, &link_fc);
292 else
293 link_fc = 0;
294 SFXGE_PORT_UNLOCK(port);
295
296 return (SYSCTL_OUT(req, &link_fc, sizeof(link_fc)));
297 }
298
299 #endif /* SFXGE_HAVE_PAUSE_MEDIAOPTS */
300
301 static const uint64_t sfxge_link_baudrate[EFX_LINK_NMODES] = {
302 [EFX_LINK_10HDX] = IF_Mbps(10),
303 [EFX_LINK_10FDX] = IF_Mbps(10),
304 [EFX_LINK_100HDX] = IF_Mbps(100),
305 [EFX_LINK_100FDX] = IF_Mbps(100),
306 [EFX_LINK_1000HDX] = IF_Gbps(1),
307 [EFX_LINK_1000FDX] = IF_Gbps(1),
308 [EFX_LINK_10000FDX] = IF_Gbps(10),
309 [EFX_LINK_25000FDX] = IF_Gbps(25),
310 [EFX_LINK_40000FDX] = IF_Gbps(40),
311 [EFX_LINK_50000FDX] = IF_Gbps(50),
312 [EFX_LINK_100000FDX] = IF_Gbps(100),
313 };
314
315 void
316 sfxge_mac_link_update(struct sfxge_softc *sc, efx_link_mode_t mode)
317 {
318 struct sfxge_port *port;
319 int link_state;
320
321 port = &sc->port;
322
323 if (port->link_mode == mode)
324 return;
325
326 port->link_mode = mode;
327
328 /* Push link state update to the OS */
329 link_state = (SFXGE_LINK_UP(sc) ? LINK_STATE_UP : LINK_STATE_DOWN);
330 sc->ifnet->if_baudrate = sfxge_link_baudrate[port->link_mode];
331 if_link_state_change(sc->ifnet, link_state);
332 }
333
334 static void
335 sfxge_mac_poll_work(void *arg, int npending)
336 {
337 struct sfxge_softc *sc;
338 efx_nic_t *enp;
339 struct sfxge_port *port;
340 efx_link_mode_t mode;
341
342 sc = (struct sfxge_softc *)arg;
343 enp = sc->enp;
344 port = &sc->port;
345
346 SFXGE_PORT_LOCK(port);
347
348 if (__predict_false(port->init_state != SFXGE_PORT_STARTED))
349 goto done;
350
351 /* This may sleep waiting for MCDI completion */
352 (void)efx_port_poll(enp, &mode);
353 sfxge_mac_link_update(sc, mode);
354
355 done:
356 SFXGE_PORT_UNLOCK(port);
357 }
358
359 static u_int
360 sfxge_copy_maddr(void *arg, struct sockaddr_dl *sdl, u_int cnt)
361 {
362 uint8_t *mcast_addr = arg;
363
364 if (cnt == EFX_MAC_MULTICAST_LIST_MAX)
365 return (0);
366
367 memcpy(mcast_addr + (cnt * EFX_MAC_ADDR_LEN), LLADDR(sdl),
368 EFX_MAC_ADDR_LEN);
369
370 return (1);
371 }
372
373 static int
374 sfxge_mac_multicast_list_set(struct sfxge_softc *sc)
375 {
376 struct ifnet *ifp = sc->ifnet;
377 struct sfxge_port *port = &sc->port;
378 int rc = 0;
379
380 mtx_assert(&port->lock, MA_OWNED);
381
382 port->mcast_count = if_foreach_llmaddr(ifp, sfxge_copy_maddr,
383 port->mcast_addrs);
384 if (port->mcast_count == EFX_MAC_MULTICAST_LIST_MAX) {
385 device_printf(sc->dev, "Too many multicast addresses\n");
386 rc = EINVAL;
387 }
388
389 if (rc == 0) {
390 rc = efx_mac_multicast_list_set(sc->enp, port->mcast_addrs,
391 port->mcast_count);
392 if (rc != 0)
393 device_printf(sc->dev,
394 "Cannot set multicast address list\n");
395 }
396
397 return (rc);
398 }
399
400 static int
401 sfxge_mac_filter_set_locked(struct sfxge_softc *sc)
402 {
403 struct ifnet *ifp = sc->ifnet;
404 struct sfxge_port *port = &sc->port;
405 boolean_t all_mulcst;
406 int rc;
407
408 mtx_assert(&port->lock, MA_OWNED);
409
410 all_mulcst = !!(ifp->if_flags & (IFF_PROMISC | IFF_ALLMULTI));
411
412 rc = sfxge_mac_multicast_list_set(sc);
413 /* Fallback to all multicast if cannot set multicast list */
414 if (rc != 0)
415 all_mulcst = B_TRUE;
416
417 rc = efx_mac_filter_set(sc->enp, !!(ifp->if_flags & IFF_PROMISC),
418 (port->mcast_count > 0), all_mulcst, B_TRUE);
419
420 return (rc);
421 }
422
423 int
424 sfxge_mac_filter_set(struct sfxge_softc *sc)
425 {
426 struct sfxge_port *port = &sc->port;
427 int rc;
428
429 SFXGE_PORT_LOCK(port);
430 /*
431 * The function may be called without softc_lock held in the
432 * case of SIOCADDMULTI and SIOCDELMULTI ioctls. ioctl handler
433 * checks IFF_DRV_RUNNING flag which implies port started, but
434 * it is not guaranteed to remain. softc_lock shared lock can't
435 * be held in the case of these ioctls processing, since it
436 * results in failure where kernel complains that non-sleepable
437 * lock is held in sleeping thread. Both problems are repeatable
438 * on LAG with LACP proto bring up.
439 */
440 if (__predict_true(port->init_state == SFXGE_PORT_STARTED))
441 rc = sfxge_mac_filter_set_locked(sc);
442 else
443 rc = 0;
444 SFXGE_PORT_UNLOCK(port);
445 return (rc);
446 }
447
448 void
449 sfxge_port_stop(struct sfxge_softc *sc)
450 {
451 struct sfxge_port *port;
452 efx_nic_t *enp;
453
454 port = &sc->port;
455 enp = sc->enp;
456
457 SFXGE_PORT_LOCK(port);
458
459 KASSERT(port->init_state == SFXGE_PORT_STARTED,
460 ("port not started"));
461
462 port->init_state = SFXGE_PORT_INITIALIZED;
463
464 port->mac_stats.update_time = 0;
465
466 /* This may call MCDI */
467 (void)efx_mac_drain(enp, B_TRUE);
468
469 (void)efx_mac_stats_periodic(enp, &port->mac_stats.dma_buf, 0, B_FALSE);
470
471 port->link_mode = EFX_LINK_UNKNOWN;
472
473 /* Destroy the common code port object. */
474 efx_port_fini(enp);
475
476 efx_filter_fini(enp);
477
478 SFXGE_PORT_UNLOCK(port);
479 }
480
481 int
482 sfxge_port_start(struct sfxge_softc *sc)
483 {
484 uint8_t mac_addr[ETHER_ADDR_LEN];
485 struct epoch_tracker et;
486 struct ifnet *ifp = sc->ifnet;
487 struct sfxge_port *port;
488 efx_nic_t *enp;
489 size_t pdu;
490 int rc;
491 uint32_t phy_cap_mask;
492
493 port = &sc->port;
494 enp = sc->enp;
495
496 SFXGE_PORT_LOCK(port);
497
498 KASSERT(port->init_state == SFXGE_PORT_INITIALIZED,
499 ("port not initialized"));
500
501 /* Initialise the required filtering */
502 if ((rc = efx_filter_init(enp)) != 0)
503 goto fail_filter_init;
504
505 /* Initialize the port object in the common code. */
506 if ((rc = efx_port_init(sc->enp)) != 0)
507 goto fail;
508
509 /* Set the SDU */
510 pdu = EFX_MAC_PDU(ifp->if_mtu);
511 if ((rc = efx_mac_pdu_set(enp, pdu)) != 0)
512 goto fail2;
513
514 if ((rc = efx_mac_fcntl_set(enp, sfxge_port_wanted_fc(sc), B_TRUE))
515 != 0)
516 goto fail3;
517
518 /* Set the unicast address */
519 NET_EPOCH_ENTER(et);
520 bcopy(LLADDR((struct sockaddr_dl *)ifp->if_addr->ifa_addr),
521 mac_addr, sizeof(mac_addr));
522 NET_EPOCH_EXIT(et);
523 if ((rc = efx_mac_addr_set(enp, mac_addr)) != 0)
524 goto fail4;
525
526 sfxge_mac_filter_set_locked(sc);
527
528 /* Update MAC stats by DMA every period */
529 if ((rc = efx_mac_stats_periodic(enp, &port->mac_stats.dma_buf,
530 port->stats_update_period_ms,
531 B_FALSE)) != 0)
532 goto fail6;
533
534 if ((rc = efx_mac_drain(enp, B_FALSE)) != 0)
535 goto fail8;
536
537 if ((rc = sfxge_phy_cap_mask(sc, sc->media.ifm_cur->ifm_media,
538 &phy_cap_mask)) != 0)
539 goto fail9;
540
541 if ((rc = efx_phy_adv_cap_set(sc->enp, phy_cap_mask)) != 0)
542 goto fail10;
543
544 port->init_state = SFXGE_PORT_STARTED;
545
546 /* Single poll in case there were missing initial events */
547 SFXGE_PORT_UNLOCK(port);
548 sfxge_mac_poll_work(sc, 0);
549
550 return (0);
551
552 fail10:
553 fail9:
554 (void)efx_mac_drain(enp, B_TRUE);
555 fail8:
556 (void)efx_mac_stats_periodic(enp, &port->mac_stats.dma_buf, 0, B_FALSE);
557 fail6:
558 fail4:
559 fail3:
560
561 fail2:
562 efx_port_fini(enp);
563 fail:
564 efx_filter_fini(enp);
565 fail_filter_init:
566 SFXGE_PORT_UNLOCK(port);
567
568 return (rc);
569 }
570
571 static int
572 sfxge_phy_stat_update(struct sfxge_softc *sc)
573 {
574 struct sfxge_port *port = &sc->port;
575 efsys_mem_t *esmp = &port->phy_stats.dma_buf;
576 clock_t now;
577 unsigned int count;
578 int rc;
579
580 SFXGE_PORT_LOCK_ASSERT_OWNED(port);
581
582 if (__predict_false(port->init_state != SFXGE_PORT_STARTED)) {
583 rc = 0;
584 goto out;
585 }
586
587 now = ticks;
588 if ((unsigned int)(now - port->phy_stats.update_time) < (unsigned int)hz) {
589 rc = 0;
590 goto out;
591 }
592
593 port->phy_stats.update_time = now;
594
595 /* If we're unlucky enough to read statistics wduring the DMA, wait
596 * up to 10ms for it to finish (typically takes <500us) */
597 for (count = 0; count < 100; ++count) {
598 EFSYS_PROBE1(wait, unsigned int, count);
599
600 /* Synchronize the DMA memory for reading */
601 bus_dmamap_sync(esmp->esm_tag, esmp->esm_map,
602 BUS_DMASYNC_POSTREAD);
603
604 /* Try to update the cached counters */
605 if ((rc = efx_phy_stats_update(sc->enp, esmp,
606 port->phy_stats.decode_buf)) != EAGAIN)
607 goto out;
608
609 DELAY(100);
610 }
611
612 rc = ETIMEDOUT;
613 out:
614 return (rc);
615 }
616
617 static int
618 sfxge_phy_stat_handler(SYSCTL_HANDLER_ARGS)
619 {
620 struct sfxge_softc *sc = arg1;
621 unsigned int id = arg2;
622 int rc;
623 uint32_t val;
624
625 SFXGE_PORT_LOCK(&sc->port);
626 if ((rc = sfxge_phy_stat_update(sc)) == 0)
627 val = ((uint32_t *)sc->port.phy_stats.decode_buf)[id];
628 SFXGE_PORT_UNLOCK(&sc->port);
629
630 if (rc == 0)
631 rc = SYSCTL_OUT(req, &val, sizeof(val));
632 return (rc);
633 }
634
635 static void
636 sfxge_phy_stat_init(struct sfxge_softc *sc)
637 {
638 struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->dev);
639 struct sysctl_oid_list *stat_list;
640 unsigned int id;
641 const char *name;
642 uint64_t stat_mask = efx_nic_cfg_get(sc->enp)->enc_phy_stat_mask;
643
644 stat_list = SYSCTL_CHILDREN(sc->stats_node);
645
646 /* Initialise the named stats */
647 for (id = 0; id < EFX_PHY_NSTATS; id++) {
648 if (!(stat_mask & ((uint64_t)1 << id)))
649 continue;
650 name = efx_phy_stat_name(sc->enp, id);
651 SYSCTL_ADD_PROC(ctx, stat_list, OID_AUTO, name,
652 CTLTYPE_UINT | CTLFLAG_RD | CTLFLAG_MPSAFE,
653 sc, id, sfxge_phy_stat_handler,
654 id == EFX_PHY_STAT_OUI ? "IX" : "IU", "");
655 }
656 }
657
658 void
659 sfxge_port_fini(struct sfxge_softc *sc)
660 {
661 struct sfxge_port *port;
662 efsys_mem_t *esmp;
663
664 port = &sc->port;
665 esmp = &port->mac_stats.dma_buf;
666
667 KASSERT(port->init_state == SFXGE_PORT_INITIALIZED,
668 ("Port not initialized"));
669
670 port->init_state = SFXGE_PORT_UNINITIALIZED;
671
672 port->link_mode = EFX_LINK_UNKNOWN;
673
674 /* Finish with PHY DMA memory */
675 sfxge_dma_free(&port->phy_stats.dma_buf);
676 free(port->phy_stats.decode_buf, M_SFXGE);
677
678 sfxge_dma_free(esmp);
679 free(port->mac_stats.decode_buf, M_SFXGE);
680
681 SFXGE_PORT_LOCK_DESTROY(port);
682
683 port->sc = NULL;
684 }
685
686 static uint16_t
687 sfxge_port_stats_update_period_ms(struct sfxge_softc *sc)
688 {
689 int period_ms = sfxge_stats_update_period_ms;
690
691 if (period_ms < 0) {
692 device_printf(sc->dev,
693 "treat negative stats update period %d as 0 (disable)\n",
694 period_ms);
695 period_ms = 0;
696 } else if (period_ms > UINT16_MAX) {
697 device_printf(sc->dev,
698 "treat too big stats update period %d as %u\n",
699 period_ms, UINT16_MAX);
700 period_ms = UINT16_MAX;
701 }
702
703 return period_ms;
704 }
705
706 static int
707 sfxge_port_stats_update_period_ms_handler(SYSCTL_HANDLER_ARGS)
708 {
709 struct sfxge_softc *sc;
710 struct sfxge_port *port;
711 unsigned int period_ms;
712 int error;
713
714 sc = arg1;
715 port = &sc->port;
716
717 if (req->newptr != NULL) {
718 error = SYSCTL_IN(req, &period_ms, sizeof(period_ms));
719 if (error != 0)
720 return (error);
721
722 if (period_ms > UINT16_MAX)
723 return (EINVAL);
724
725 SFXGE_PORT_LOCK(port);
726
727 if (port->stats_update_period_ms != period_ms) {
728 if (port->init_state == SFXGE_PORT_STARTED)
729 error = efx_mac_stats_periodic(sc->enp,
730 &port->mac_stats.dma_buf,
731 period_ms, B_FALSE);
732 if (error == 0)
733 port->stats_update_period_ms = period_ms;
734 }
735
736 SFXGE_PORT_UNLOCK(port);
737 } else {
738 SFXGE_PORT_LOCK(port);
739 period_ms = port->stats_update_period_ms;
740 SFXGE_PORT_UNLOCK(port);
741
742 error = SYSCTL_OUT(req, &period_ms, sizeof(period_ms));
743 }
744
745 return (error);
746 }
747
748 int
749 sfxge_port_init(struct sfxge_softc *sc)
750 {
751 struct sfxge_port *port;
752 struct sysctl_ctx_list *sysctl_ctx;
753 struct sysctl_oid *sysctl_tree;
754 efsys_mem_t *mac_stats_buf, *phy_stats_buf;
755 uint32_t mac_nstats;
756 size_t mac_stats_size;
757 int rc;
758
759 port = &sc->port;
760 mac_stats_buf = &port->mac_stats.dma_buf;
761 phy_stats_buf = &port->phy_stats.dma_buf;
762
763 KASSERT(port->init_state == SFXGE_PORT_UNINITIALIZED,
764 ("Port already initialized"));
765
766 port->sc = sc;
767
768 SFXGE_PORT_LOCK_INIT(port, device_get_nameunit(sc->dev));
769
770 DBGPRINT(sc->dev, "alloc PHY stats");
771 port->phy_stats.decode_buf = malloc(EFX_PHY_NSTATS * sizeof(uint32_t),
772 M_SFXGE, M_WAITOK | M_ZERO);
773 if ((rc = sfxge_dma_alloc(sc, EFX_PHY_STATS_SIZE, phy_stats_buf)) != 0)
774 goto fail;
775 sfxge_phy_stat_init(sc);
776
777 DBGPRINT(sc->dev, "init sysctl");
778 sysctl_ctx = device_get_sysctl_ctx(sc->dev);
779 sysctl_tree = device_get_sysctl_tree(sc->dev);
780
781 #ifndef SFXGE_HAVE_PAUSE_MEDIAOPTS
782 /* If flow control cannot be configured or reported through
783 * ifmedia, provide sysctls for it. */
784 port->wanted_fc = EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE;
785 SYSCTL_ADD_PROC(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), OID_AUTO,
786 "wanted_fc", CTLTYPE_UINT | CTLFLAG_RW | CTLFLAG_MPSAFE, sc, 0,
787 sfxge_port_wanted_fc_handler, "IU", "wanted flow control mode");
788 SYSCTL_ADD_PROC(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), OID_AUTO,
789 "link_fc", CTLTYPE_UINT | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 0,
790 sfxge_port_link_fc_handler, "IU", "link flow control mode");
791 #endif
792
793 DBGPRINT(sc->dev, "alloc MAC stats");
794 port->mac_stats.decode_buf = malloc(EFX_MAC_NSTATS * sizeof(uint64_t),
795 M_SFXGE, M_WAITOK | M_ZERO);
796 mac_nstats = efx_nic_cfg_get(sc->enp)->enc_mac_stats_nstats;
797 mac_stats_size = EFX_P2ROUNDUP(size_t, mac_nstats * sizeof(uint64_t),
798 EFX_BUF_SIZE);
799 if ((rc = sfxge_dma_alloc(sc, mac_stats_size, mac_stats_buf)) != 0)
800 goto fail2;
801 port->stats_update_period_ms = sfxge_port_stats_update_period_ms(sc);
802 sfxge_mac_stat_init(sc);
803
804 SYSCTL_ADD_PROC(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), OID_AUTO,
805 "stats_update_period_ms",
806 CTLTYPE_UINT | CTLFLAG_RW | CTLFLAG_MPSAFE, sc, 0,
807 sfxge_port_stats_update_period_ms_handler, "IU",
808 "interface statistics refresh period");
809
810 port->init_state = SFXGE_PORT_INITIALIZED;
811
812 DBGPRINT(sc->dev, "success");
813 return (0);
814
815 fail2:
816 free(port->mac_stats.decode_buf, M_SFXGE);
817 sfxge_dma_free(phy_stats_buf);
818 fail:
819 free(port->phy_stats.decode_buf, M_SFXGE);
820 SFXGE_PORT_LOCK_DESTROY(port);
821 port->sc = NULL;
822 DBGPRINT(sc->dev, "failed %d", rc);
823 return (rc);
824 }
825
826 static const int sfxge_link_mode[EFX_PHY_MEDIA_NTYPES][EFX_LINK_NMODES] = {
827 [EFX_PHY_MEDIA_CX4] = {
828 [EFX_LINK_10000FDX] = IFM_ETHER | IFM_FDX | IFM_10G_CX4,
829 },
830 [EFX_PHY_MEDIA_KX4] = {
831 [EFX_LINK_10000FDX] = IFM_ETHER | IFM_FDX | IFM_10G_KX4,
832 },
833 [EFX_PHY_MEDIA_XFP] = {
834 /* Don't know the module type, but assume SR for now. */
835 [EFX_LINK_10000FDX] = IFM_ETHER | IFM_FDX | IFM_10G_SR,
836 },
837 [EFX_PHY_MEDIA_QSFP_PLUS] = {
838 /* Don't know the module type, but assume SR for now. */
839 [EFX_LINK_10000FDX] = IFM_ETHER | IFM_FDX | IFM_10G_SR,
840 [EFX_LINK_25000FDX] = IFM_ETHER | IFM_FDX | IFM_25G_SR,
841 [EFX_LINK_40000FDX] = IFM_ETHER | IFM_FDX | IFM_40G_CR4,
842 [EFX_LINK_50000FDX] = IFM_ETHER | IFM_FDX | IFM_50G_SR,
843 [EFX_LINK_100000FDX] = IFM_ETHER | IFM_FDX | IFM_100G_SR2,
844 },
845 [EFX_PHY_MEDIA_SFP_PLUS] = {
846 /* Don't know the module type, but assume SX/SR for now. */
847 [EFX_LINK_1000FDX] = IFM_ETHER | IFM_FDX | IFM_1000_SX,
848 [EFX_LINK_10000FDX] = IFM_ETHER | IFM_FDX | IFM_10G_SR,
849 [EFX_LINK_25000FDX] = IFM_ETHER | IFM_FDX | IFM_25G_SR,
850 },
851 [EFX_PHY_MEDIA_BASE_T] = {
852 [EFX_LINK_10HDX] = IFM_ETHER | IFM_HDX | IFM_10_T,
853 [EFX_LINK_10FDX] = IFM_ETHER | IFM_FDX | IFM_10_T,
854 [EFX_LINK_100HDX] = IFM_ETHER | IFM_HDX | IFM_100_TX,
855 [EFX_LINK_100FDX] = IFM_ETHER | IFM_FDX | IFM_100_TX,
856 [EFX_LINK_1000HDX] = IFM_ETHER | IFM_HDX | IFM_1000_T,
857 [EFX_LINK_1000FDX] = IFM_ETHER | IFM_FDX | IFM_1000_T,
858 [EFX_LINK_10000FDX] = IFM_ETHER | IFM_FDX | IFM_10G_T,
859 },
860 };
861
862 static void
863 sfxge_media_status(struct ifnet *ifp, struct ifmediareq *ifmr)
864 {
865 struct sfxge_softc *sc;
866 efx_phy_media_type_t medium_type;
867 efx_link_mode_t mode;
868
869 sc = ifp->if_softc;
870 SFXGE_ADAPTER_LOCK(sc);
871
872 ifmr->ifm_status = IFM_AVALID;
873 ifmr->ifm_active = IFM_ETHER;
874
875 if (SFXGE_RUNNING(sc) && SFXGE_LINK_UP(sc)) {
876 ifmr->ifm_status |= IFM_ACTIVE;
877
878 efx_phy_media_type_get(sc->enp, &medium_type);
879 mode = sc->port.link_mode;
880 ifmr->ifm_active |= sfxge_link_mode[medium_type][mode];
881 ifmr->ifm_active |= sfxge_port_link_fc_ifm(sc);
882 }
883
884 SFXGE_ADAPTER_UNLOCK(sc);
885 }
886
887 static efx_phy_cap_type_t
888 sfxge_link_mode_to_phy_cap(efx_link_mode_t mode)
889 {
890 switch (mode) {
891 case EFX_LINK_10HDX:
892 return (EFX_PHY_CAP_10HDX);
893 case EFX_LINK_10FDX:
894 return (EFX_PHY_CAP_10FDX);
895 case EFX_LINK_100HDX:
896 return (EFX_PHY_CAP_100HDX);
897 case EFX_LINK_100FDX:
898 return (EFX_PHY_CAP_100FDX);
899 case EFX_LINK_1000HDX:
900 return (EFX_PHY_CAP_1000HDX);
901 case EFX_LINK_1000FDX:
902 return (EFX_PHY_CAP_1000FDX);
903 case EFX_LINK_10000FDX:
904 return (EFX_PHY_CAP_10000FDX);
905 case EFX_LINK_25000FDX:
906 return (EFX_PHY_CAP_25000FDX);
907 case EFX_LINK_40000FDX:
908 return (EFX_PHY_CAP_40000FDX);
909 case EFX_LINK_50000FDX:
910 return (EFX_PHY_CAP_50000FDX);
911 case EFX_LINK_100000FDX:
912 return (EFX_PHY_CAP_100000FDX);
913 default:
914 return (EFX_PHY_CAP_INVALID);
915 }
916 }
917
918 static int
919 sfxge_phy_cap_mask(struct sfxge_softc *sc, int ifmedia, uint32_t *phy_cap_mask)
920 {
921 /* Get global options (duplex), type and subtype bits */
922 int ifmedia_masked = ifmedia & (IFM_GMASK | IFM_NMASK | IFM_TMASK);
923 efx_phy_media_type_t medium_type;
924 boolean_t mode_found = B_FALSE;
925 uint32_t cap_mask, mode_cap_mask;
926 efx_link_mode_t mode;
927 efx_phy_cap_type_t phy_cap;
928
929 efx_phy_media_type_get(sc->enp, &medium_type);
930 if (medium_type >= nitems(sfxge_link_mode)) {
931 if_printf(sc->ifnet, "unexpected media type %d\n", medium_type);
932 return (EINVAL);
933 }
934
935 efx_phy_adv_cap_get(sc->enp, EFX_PHY_CAP_PERM, &cap_mask);
936
937 for (mode = EFX_LINK_10HDX; mode < EFX_LINK_NMODES; mode++) {
938 if (ifmedia_masked == sfxge_link_mode[medium_type][mode]) {
939 mode_found = B_TRUE;
940 break;
941 }
942 }
943
944 if (!mode_found) {
945 /*
946 * If media is not in the table, it must be IFM_AUTO.
947 */
948 KASSERT((cap_mask & (1 << EFX_PHY_CAP_AN)) &&
949 ifmedia_masked == (IFM_ETHER | IFM_AUTO),
950 ("%s: no mode for media %#x", __func__, ifmedia));
951 *phy_cap_mask = (cap_mask & ~(1 << EFX_PHY_CAP_ASYM));
952 return (0);
953 }
954
955 phy_cap = sfxge_link_mode_to_phy_cap(mode);
956 if (phy_cap == EFX_PHY_CAP_INVALID) {
957 if_printf(sc->ifnet,
958 "cannot map link mode %d to phy capability\n",
959 mode);
960 return (EINVAL);
961 }
962
963 mode_cap_mask = (1 << phy_cap);
964 mode_cap_mask |= cap_mask & (1 << EFX_PHY_CAP_AN);
965 #ifdef SFXGE_HAVE_PAUSE_MEDIAOPTS
966 if (ifmedia & IFM_ETH_RXPAUSE)
967 mode_cap_mask |= cap_mask & (1 << EFX_PHY_CAP_PAUSE);
968 if (!(ifmedia & IFM_ETH_TXPAUSE))
969 mode_cap_mask |= cap_mask & (1 << EFX_PHY_CAP_ASYM);
970 #else
971 mode_cap_mask |= cap_mask & (1 << EFX_PHY_CAP_PAUSE);
972 #endif
973
974 *phy_cap_mask = mode_cap_mask;
975 return (0);
976 }
977
978 static int
979 sfxge_media_change(struct ifnet *ifp)
980 {
981 struct sfxge_softc *sc;
982 struct ifmedia_entry *ifm;
983 int rc;
984 uint32_t phy_cap_mask;
985
986 sc = ifp->if_softc;
987 ifm = sc->media.ifm_cur;
988
989 SFXGE_ADAPTER_LOCK(sc);
990
991 if (!SFXGE_RUNNING(sc)) {
992 rc = 0;
993 goto out;
994 }
995
996 rc = efx_mac_fcntl_set(sc->enp, sfxge_port_wanted_fc(sc), B_TRUE);
997 if (rc != 0)
998 goto out;
999
1000 if ((rc = sfxge_phy_cap_mask(sc, ifm->ifm_media, &phy_cap_mask)) != 0)
1001 goto out;
1002
1003 rc = efx_phy_adv_cap_set(sc->enp, phy_cap_mask);
1004 out:
1005 SFXGE_ADAPTER_UNLOCK(sc);
1006
1007 return (rc);
1008 }
1009
1010 int sfxge_port_ifmedia_init(struct sfxge_softc *sc)
1011 {
1012 efx_phy_media_type_t medium_type;
1013 uint32_t cap_mask, mode_cap_mask;
1014 efx_link_mode_t mode;
1015 efx_phy_cap_type_t phy_cap;
1016 int mode_ifm, best_mode_ifm = 0;
1017 int rc;
1018
1019 /*
1020 * We need port state to initialise the ifmedia list.
1021 * It requires initialized NIC what is already done in
1022 * sfxge_create() when resources are estimated.
1023 */
1024 if ((rc = efx_filter_init(sc->enp)) != 0)
1025 goto out1;
1026 if ((rc = efx_port_init(sc->enp)) != 0)
1027 goto out2;
1028
1029 /*
1030 * Register ifconfig callbacks for querying and setting the
1031 * link mode and link status.
1032 */
1033 ifmedia_init(&sc->media, IFM_IMASK, sfxge_media_change,
1034 sfxge_media_status);
1035
1036 /*
1037 * Map firmware medium type and capabilities to ifmedia types.
1038 * ifmedia does not distinguish between forcing the link mode
1039 * and disabling auto-negotiation. 1000BASE-T and 10GBASE-T
1040 * require AN even if only one link mode is enabled, and for
1041 * 100BASE-TX it is useful even if the link mode is forced.
1042 * Therefore we never disable auto-negotiation.
1043 *
1044 * Also enable and advertise flow control by default.
1045 */
1046
1047 efx_phy_media_type_get(sc->enp, &medium_type);
1048 efx_phy_adv_cap_get(sc->enp, EFX_PHY_CAP_PERM, &cap_mask);
1049
1050 for (mode = EFX_LINK_10HDX; mode < EFX_LINK_NMODES; mode++) {
1051 phy_cap = sfxge_link_mode_to_phy_cap(mode);
1052 if (phy_cap == EFX_PHY_CAP_INVALID)
1053 continue;
1054
1055 mode_cap_mask = (1 << phy_cap);
1056 mode_ifm = sfxge_link_mode[medium_type][mode];
1057
1058 if ((cap_mask & mode_cap_mask) && mode_ifm) {
1059 /* No flow-control */
1060 ifmedia_add(&sc->media, mode_ifm, 0, NULL);
1061
1062 #ifdef SFXGE_HAVE_PAUSE_MEDIAOPTS
1063 /* Respond-only. If using AN, we implicitly
1064 * offer symmetric as well, but that doesn't
1065 * mean we *have* to generate pause frames.
1066 */
1067 mode_ifm |= IFM_ETH_RXPAUSE;
1068 ifmedia_add(&sc->media, mode_ifm, 0, NULL);
1069
1070 /* Symmetric */
1071 mode_ifm |= IFM_ETH_TXPAUSE;
1072 ifmedia_add(&sc->media, mode_ifm, 0, NULL);
1073 #endif
1074
1075 /* Link modes are numbered in order of speed,
1076 * so assume the last one available is the best.
1077 */
1078 best_mode_ifm = mode_ifm;
1079 }
1080 }
1081
1082 if (cap_mask & (1 << EFX_PHY_CAP_AN)) {
1083 /* Add autoselect mode. */
1084 mode_ifm = IFM_ETHER | IFM_AUTO;
1085 ifmedia_add(&sc->media, mode_ifm, 0, NULL);
1086 best_mode_ifm = mode_ifm;
1087 }
1088
1089 if (best_mode_ifm != 0)
1090 ifmedia_set(&sc->media, best_mode_ifm);
1091
1092 /* Now discard port state until interface is started. */
1093 efx_port_fini(sc->enp);
1094 out2:
1095 efx_filter_fini(sc->enp);
1096 out1:
1097 return (rc);
1098 }
Cache object: 182cf03c7666c52aa02369394994bd5f
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