usr/src/cmd/mdb/common/modules/fcip/fcip.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 /*
  22  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  23  * Use is subject to license terms.
  24  *
  25  * FCIP mdb module
  26  */
  27
  28
  29 #include <sys/mdb_modapi.h>
  30 #include <sys/mutex.h>
  31 #include <sys/modctl.h>
  32 #include <sys/ethernet.h>
  33 #include <sys/fibre-channel/fc.h>
  34 #include <sys/fibre-channel/impl/fc_ulpif.h>
  35 #include <sys/fibre-channel/impl/fctl_private.h>
  36 #include <sys/fibre-channel/ulp/fcip.h>
  37
  38 /*
  39  * Leadville fcip walker/dcmd code
  40  */
  41
  42 static int
  43 fcip_walk_i(mdb_walk_state_t *wsp)
  44 {
  45         if (wsp->walk_addr == (uintptr_t)NULL &&
  46             mdb_readvar(&wsp->walk_addr, "fcip_port_head") == -1) {
  47                 mdb_warn("failed to read 'fcip_port_head'");
  48                 return (WALK_ERR);
  49         }
  50
  51         wsp->walk_data = mdb_alloc(sizeof (fcip_port_info_t), UM_SLEEP);
  52         return (WALK_NEXT);
  53 }
  54
  55 static int
  56 fcip_walk_s(mdb_walk_state_t *wsp)
  57 {
  58         int status;
  59
  60         if (wsp->walk_addr == (uintptr_t)NULL)
  61                 return (WALK_DONE);
  62
  63         if (mdb_vread(wsp->walk_data, sizeof (fcip_port_info_t),
  64             wsp->walk_addr) == -1) {
  65                 mdb_warn("failed to read fcip_port_info at %p", wsp->walk_addr);
  66                 return (WALK_DONE);
  67         }
  68
  69         status = wsp->walk_callback(wsp->walk_addr, wsp->walk_data,
  70             wsp->walk_cbdata);
  71
  72         wsp->walk_addr =
  73             (uintptr_t)(((fcip_port_info_t *)wsp->walk_data)->fcipp_next);
  74
  75         return (status);
  76 }
  77
  78 /*
  79  * The walker's fini function is invoked at the end of each walk.  Since we
  80  * dynamically allocated a fc_fca_port_t in port_walk_i, we must free it now.
  81  */
  82 static void
  83 fcip_walk_f(mdb_walk_state_t *wsp)
  84 {
  85         mdb_free(wsp->walk_data, sizeof (fc_fca_port_t));
  86 }
  87
  88
  89 static int
  90 fcip(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
  91 {
  92         fcip_port_info_t        pinfo;
  93
  94         if (argc != 0) {
  95                 return (DCMD_USAGE);
  96         }
  97
  98         if (!(flags & DCMD_ADDRSPEC)) {
  99                 if (mdb_walk_dcmd("fcip", "fcip",
 100                     argc, argv) == -1) {
 101                         mdb_warn("failed to walk 'fcip_port_head'");
 102                         return (DCMD_ERR);
 103                 }
 104                 return (DCMD_OK);
 105         }
 106
 107         if (DCMD_HDRSPEC(flags))
 108                 mdb_printf("%12s %12s %12s %16s %16s\n",
 109                     "FCIP Struct", "Handle", "DIP", "Port WWN", "Node WWN");
 110
 111         /*
 112          * For each port, we just need to read the fc_fca_port_t struct, read
 113          * the port_handle
 114          */
 115         if (mdb_vread(&pinfo, sizeof (fcip_port_info_t), addr) ==
 116             sizeof (fcip_port_info_t)) {
 117                 mdb_printf("%12p %12p %12p %02x%02x%02x%02x%02x%02x%02x%02x "
 118                     "%02x%02x%02x%02x%02x%02x%02x%02x\n",
 119                     pinfo.fcipp_fcip, pinfo.fcipp_handle, pinfo.fcipp_dip,
 120                     pinfo.fcipp_pwwn.raw_wwn[0], pinfo.fcipp_pwwn.raw_wwn[1],
 121                     pinfo.fcipp_pwwn.raw_wwn[2], pinfo.fcipp_pwwn.raw_wwn[3],
 122                     pinfo.fcipp_pwwn.raw_wwn[4], pinfo.fcipp_pwwn.raw_wwn[5],
 123                     pinfo.fcipp_pwwn.raw_wwn[6], pinfo.fcipp_pwwn.raw_wwn[7],
 124                     pinfo.fcipp_nwwn.raw_wwn[0], pinfo.fcipp_nwwn.raw_wwn[1],
 125                     pinfo.fcipp_nwwn.raw_wwn[2], pinfo.fcipp_nwwn.raw_wwn[3],
 126                     pinfo.fcipp_nwwn.raw_wwn[4], pinfo.fcipp_nwwn.raw_wwn[5],
 127                     pinfo.fcipp_nwwn.raw_wwn[6], pinfo.fcipp_nwwn.raw_wwn[7]);
 128
 129         } else
 130                 mdb_warn("failed to read port info at %p", addr);
 131
 132         return (DCMD_OK);
 133 }
 134
 135
 136 /*
 137  * MDB module linkage information:
 138  *
 139  * We declare a list of structures describing our dcmds, a list of structures
 140  * describing our walkers, and a function named _mdb_init to return a pointer
 141  * to our module information.
 142  */
 143
 144 static const mdb_dcmd_t dcmds[] = {
 145         { "fcip", NULL, "Leadville fcip instances", fcip },
 146         { NULL }
 147 };
 148
 149 static const mdb_walker_t walkers[] = {
 150         { "fcip", "walk list of Leadville fcip instances",
 151                 fcip_walk_i, fcip_walk_s, fcip_walk_f },
 152         { NULL }
 153 };
 154
 155 static const mdb_modinfo_t modinfo = {
 156         MDB_API_VERSION, dcmds, walkers
 157 };
 158
 159 const mdb_modinfo_t *
 160 _mdb_init(void)
 161 {
 162         return (&modinfo);
 163 }