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      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 == 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 == 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 }
    164