src/usr/fcmgmt.c

   1 /*
   2  * Copyright (C) 2010 Michael Brown <mbrown@fensystems.co.uk>.
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License as
   6  * published by the Free Software Foundation; either version 2 of the
   7  * License, or any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  17  * 02110-1301, USA.
  18  *
  19  * You can also choose to distribute this program under the terms of
  20  * the Unmodified Binary Distribution Licence (as given in the file
  21  * COPYING.UBDL), provided that you have satisfied its requirements.
  22  */
  23
  24 FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
  25
  26 #include <string.h>
  27 #include <stdio.h>
  28 #include <errno.h>
  29 #include <ipxe/fc.h>
  30 #include <ipxe/fcels.h>
  31 #include <ipxe/monojob.h>
  32 #include <usr/fcmgmt.h>
  33
  34 /** @file
  35  *
  36  * Fibre Channel management
  37  *
  38  */
  39
  40 /**
  41  * Print status of Fibre Channel port
  42  *
  43  * @v port              Fibre Channel port
  44  */
  45 void fcportstat ( struct fc_port *port ) {
  46         printf ( "%s: %s id %s", port->name, fc_ntoa ( &port->port_wwn ),
  47                  fc_id_ntoa ( &port->port_id ) );
  48         printf ( " node %s\n  [Link:", fc_ntoa ( &port->node_wwn ) );
  49         if ( fc_link_ok ( &port->link ) ) {
  50                 printf ( " up, %s", fc_ntoa ( &port->link_port_wwn ) );
  51                 if ( ( port->flags & FC_PORT_HAS_FABRIC ) ) {
  52                         printf ( " fabric" );
  53                 } else {
  54                         printf ( " id %s",
  55                                  fc_id_ntoa ( &port->ptp_link_port_id ) );
  56                 }
  57                 printf ( " node %s]\n", fc_ntoa ( &port->link_node_wwn ) );
  58         } else {
  59                 printf ( " down: %s]\n", strerror ( port->link.rc ) );
  60         }
  61 }
  62
  63 /**
  64  * Print status of Fibre Channel peer
  65  *
  66  * @v peer              Fibre Channel peer
  67  */
  68 void fcpeerstat ( struct fc_peer *peer ) {
  69         struct fc_ulp *ulp;
  70         uint8_t *param;
  71         unsigned int i;
  72
  73         printf ( "%s:\n  [Link:", fc_ntoa ( &peer->port_wwn ) );
  74         if ( fc_link_ok ( &peer->link ) ) {
  75                 printf ( " up, port %s id %s]\n", peer->port->name,
  76                          fc_id_ntoa ( &peer->port_id ) );
  77         } else {
  78                 printf ( " down: %s]\n", strerror ( peer->link.rc ) );
  79         }
  80
  81         list_for_each_entry ( ulp, &peer->ulps, list ) {
  82                 printf ( "  [Type %02x link:", ulp->type );
  83                 if ( fc_link_ok ( &ulp->link ) ) {
  84                         printf ( " up, params" );
  85                         param = ulp->param;
  86                         for ( i = 0 ; i < ulp->param_len ; i++ ) {
  87                                 printf ( "%c%02x", ( ( i == 0 ) ? ' ' : ':' ),
  88                                          param[i] );
  89                         }
  90                 } else {
  91                         printf ( " down: %s", strerror ( ulp->link.rc ) );
  92                 }
  93                 printf ( "]\n" );
  94         }
  95 }
  96
  97 /**
  98  * Issue Fibre Channel ELS
  99  *
 100  * @v port              Fibre Channel port
 101  * @v peer_port_id      Peer port ID
 102  * @v handler           ELS handler
 103  * @ret rc              Return status code
 104  */
 105 int fcels ( struct fc_port *port, struct fc_port_id *peer_port_id,
 106             struct fc_els_handler *handler ) {
 107         int rc;
 108
 109         /* Initiate ELS */
 110         printf ( "%s %s to %s...",
 111                  port->name, handler->name, fc_id_ntoa ( peer_port_id ) );
 112         if ( ( rc = fc_els_request ( &monojob, port, peer_port_id,
 113                                      handler ) ) != 0 ) {
 114                 printf ( "%s\n", strerror ( rc ) );
 115                 return rc;
 116         }
 117
 118         /* Wait for ELS to complete */
 119         return monojob_wait ( "", 0 );
 120 }