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/mfi/mfi_debug.c

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    1 /*-
    2  * Copyright (c) 2006 IronPort Systems
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  *
   14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   24  * SUCH DAMAGE.
   25  */
   26 
   27 #include <sys/cdefs.h>
   28 __FBSDID("$FreeBSD: releng/8.3/sys/dev/mfi/mfi_debug.c 229662 2012-01-05 22:14:49Z jhb $");
   29 
   30 #include "opt_mfi.h"
   31 
   32 #ifdef MFI_DEBUG
   33 
   34 #include <sys/param.h>
   35 #include <sys/systm.h>
   36 #include <sys/kernel.h>
   37 #include <sys/conf.h>
   38 #include <sys/bus.h>
   39 #include <sys/bio.h>
   40 #include <sys/lock.h>
   41 #include <sys/mutex.h>
   42 #include <sys/malloc.h>
   43 #include <sys/selinfo.h>
   44 #include <sys/sysctl.h>
   45 #include <sys/taskqueue.h>
   46 #include <sys/uio.h>
   47 #include <machine/resource.h>
   48 #include <machine/bus.h>
   49 
   50 #include <vm/vm.h>
   51 #include <vm/pmap.h>
   52 
   53 #include <dev/mfi/mfireg.h>
   54 #include <dev/mfi/mfi_ioctl.h>
   55 #include <dev/mfi/mfivar.h>
   56 
   57 static void
   58 mfi_print_frame_flags(device_t dev, uint32_t flags)
   59 {
   60         device_printf(dev, "flags=%b\n", flags,
   61             "\2"
   62             "\1NOPOST"
   63             "\2SGL64"
   64             "\3SENSE64"
   65             "\4WRITE"
   66             "\5READ");
   67 }
   68 
   69 static void
   70 mfi_print_sgl(struct mfi_frame_header *hdr, union mfi_sgl *sgl, int count)
   71 {
   72         int i, columns = 0;
   73 
   74         printf("SG List:\n");
   75         for (i = 0; i < count; i++) {
   76                 if (hdr->flags & MFI_FRAME_SGL64) {
   77                         printf("0x%lx:%06d ", (u_long)sgl->sg64[i].addr,
   78                             sgl->sg64[i].len);
   79                         columns += 26;
   80                         if (columns > 77) {
   81                                 printf("\n");
   82                                 columns = 0;
   83                         }
   84                 } else {
   85                         printf("0x%x:%06d ", sgl->sg32[i].addr,
   86                             sgl->sg32[i].len);
   87                         columns += 18;
   88                         if (columns > 71) {
   89                                 printf("\n");
   90                                 columns = 0;
   91                         }
   92                 }
   93         }
   94         if (columns != 0)
   95                 printf("\n");
   96 
   97 }
   98 
   99 static void
  100 mfi_print_ldio(struct mfi_softc *sc, device_t dev, struct mfi_command *cm)
  101 {
  102         struct mfi_io_frame *io;
  103         struct mfi_frame_header *hdr;
  104 
  105         io = &cm->cm_frame->io;
  106         hdr = &io->header;
  107 
  108         device_printf(dev, "cmd=%s target_id=%d sg_count=%d data_len=%d "
  109             "lba=%d\n", (hdr->cmd == MFI_CMD_LD_READ) ? "LD_READ":"LD_WRITE",
  110              hdr->target_id, hdr->sg_count, hdr->data_len, io->lba_lo);
  111         mfi_print_frame_flags(dev, hdr->flags);
  112         mfi_print_sgl(hdr, &io->sgl, hdr->sg_count);
  113 
  114 }
  115 
  116 static void
  117 mfi_print_dcmd(struct mfi_softc *sc, device_t dev, struct mfi_command *cm)
  118 {
  119         struct mfi_dcmd_frame *dcmd;
  120         struct mfi_frame_header *hdr;
  121         const char *opcode;
  122 
  123         dcmd = &cm->cm_frame->dcmd;
  124         hdr = &dcmd->header;
  125 
  126         switch (dcmd->opcode) {
  127         case MFI_DCMD_CTRL_GETINFO:
  128                 opcode = "CTRL_GETINFO";
  129                 break;
  130         case MFI_DCMD_CTRL_FLUSHCACHE:
  131                 opcode = "CTRL_FLUSHCACHE";
  132                 break;
  133         case MFI_DCMD_CTRL_SHUTDOWN:
  134                 opcode = "CTRL_SHUTDOWN";
  135                 break;
  136         case MFI_DCMD_CTRL_EVENT_GETINFO:
  137                 opcode = "EVENT_GETINFO";
  138                 break;
  139         case MFI_DCMD_CTRL_EVENT_GET:
  140                 opcode = "EVENT_GET";
  141                 break;
  142         case MFI_DCMD_CTRL_EVENT_WAIT:
  143                 opcode = "EVENT_WAIT";
  144                 break;
  145         case MFI_DCMD_LD_GET_LIST:
  146                 opcode = "LD_GET_LIST";
  147                 break;
  148         case MFI_DCMD_LD_GET_INFO:
  149                 opcode = "LD_GET_INFO";
  150                 break;
  151         case MFI_DCMD_LD_GET_PROP:
  152                 opcode = "LD_GET_PROP";
  153                 break;
  154         case MFI_DCMD_LD_SET_PROP:
  155                 opcode = "LD_SET_PROP";
  156                 break;
  157         case MFI_DCMD_CLUSTER:
  158                 opcode = "CLUSTER";
  159                 break;
  160         case MFI_DCMD_CLUSTER_RESET_ALL:
  161                 opcode = "CLUSTER_RESET_ALL";
  162                 break;
  163         case MFI_DCMD_CLUSTER_RESET_LD:
  164                 opcode = "CLUSTER_RESET_LD";
  165                 break;
  166         default:
  167                 opcode = "UNKNOWN";
  168                 break;
  169         }
  170 
  171         device_printf(dev, "cmd=MFI_CMD_DCMD opcode=%s data_len=%d\n",
  172             opcode, hdr->data_len);
  173         mfi_print_frame_flags(dev, hdr->flags);
  174         mfi_print_sgl(hdr, &dcmd->sgl, hdr->sg_count);
  175 
  176 }
  177 
  178 static void
  179 mfi_print_generic_frame(struct mfi_softc *sc, struct mfi_command *cm)
  180 {
  181         hexdump(cm->cm_frame, cm->cm_total_frame_size, NULL, HD_OMIT_CHARS);
  182 }
  183 
  184 void
  185 mfi_print_cmd(struct mfi_command *cm)
  186 {
  187         device_t dev;
  188         struct mfi_softc *sc;
  189 
  190         sc = cm->cm_sc;
  191         dev = sc->mfi_dev;
  192 
  193         device_printf(dev, "cm=%p index=%d total_frame_size=%d "
  194             "extra_frames=%d\n", cm, cm->cm_index, cm->cm_total_frame_size,
  195             cm->cm_extra_frames);
  196         device_printf(dev, "flags=%b\n", cm->cm_flags,
  197             "\2"
  198             "\1MAPPED"
  199             "\2DATAIN"
  200             "\3DATAOUT"
  201             "\4COMPLETED"
  202             "\5POLLED"
  203             "\6Q_FREE"
  204             "\7Q_READY"
  205             "\10Q_BUSY");
  206 
  207         switch (cm->cm_frame->header.cmd) {
  208         case MFI_CMD_DCMD:
  209                 mfi_print_dcmd(sc, dev, cm);
  210                 break;
  211         case MFI_CMD_LD_READ:
  212         case MFI_CMD_LD_WRITE:
  213                 mfi_print_ldio(sc, dev, cm);
  214                 break;
  215         default:
  216                 mfi_print_generic_frame(sc, cm);
  217                 break;
  218         }
  219 
  220         return;
  221 }
  222 
  223 void
  224 mfi_dump_cmds(struct mfi_softc *sc)
  225 {
  226         int i;
  227 
  228         for (i = 0; i < sc->mfi_total_cmds; i++)
  229                 mfi_print_generic_frame(sc, &sc->mfi_commands[i]);
  230 }
  231 
  232 void
  233 mfi_validate_sg(struct mfi_softc *sc, struct mfi_command *cm,
  234         const char *function, int line)
  235 {
  236         struct mfi_frame_header *hdr;
  237         int i;
  238         uint32_t count = 0, data_len;
  239 
  240         hdr = &cm->cm_frame->header;
  241         count = 0;
  242         for (i = 0; i < hdr->sg_count; i++) {
  243                 count += cm->cm_sg->sg32[i].len;
  244         }
  245         /*
  246         count++;
  247         */
  248         data_len = hdr->data_len;
  249         switch (hdr->cmd) {
  250         case MFI_CMD_LD_READ:
  251         case MFI_CMD_LD_WRITE:
  252                 data_len = data_len * 512;
  253         case MFI_CMD_DCMD:
  254                 if (count != data_len) {
  255                         device_printf(sc->mfi_dev,
  256                             "%s %d COMMAND %p S/G count bad %d %d %d 0x%jx\n",
  257                             function, line, cm, count, data_len, cm->cm_len,
  258                             (intmax_t)pmap_kextract((vm_offset_t)cm->cm_data));
  259                         MFI_PRINT_CMD(cm);
  260                 }
  261         }
  262 }
  263 
  264 #endif

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