[peerdist] Allow PeerDist to be globally enabled or disabled
[ipxe.git] / 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 }