usr/transport.c

   1 /*
   2  * iSCSI transport
   3  *
   4  * Copyright (C) 2006 Mike Christie
   5  * Copyright (C) 2006 Red Hat, Inc. All rights reserved.
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published
   9  * by the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  15  * General Public License for more details.
  16  */
  17 #include <stdlib.h>
  18 #include <string.h>
  19 #include <stdio.h>
  20 #include <unistd.h>
  21 #include <errno.h>
  22
  23 #include "initiator.h"
  24 #include "transport.h"
  25 #include "log.h"
  26 #include "iscsi_util.h"
  27 #include "iscsi_sysfs.h"
  28 #include "cxgbi.h"
  29 #include "be2iscsi.h"
  30
  31 struct iscsi_transport_template iscsi_tcp = {
  32         .name           = "tcp",
  33         .ep_connect     = iscsi_io_tcp_connect,
  34         .ep_poll        = iscsi_io_tcp_poll,
  35         .ep_disconnect  = iscsi_io_tcp_disconnect,
  36 };
  37
  38 struct iscsi_transport_template iscsi_iser = {
  39         .name           = "iser",
  40         .rdma           = 1,
  41         .ep_connect     = ktransport_ep_connect,
  42         .ep_poll        = ktransport_ep_poll,
  43         .ep_disconnect  = ktransport_ep_disconnect,
  44 };
  45
  46 struct iscsi_transport_template cxgb3i = {
  47         .name           = "cxgb3i",
  48         .set_host_ip    = 1,
  49         .ep_connect     = ktransport_ep_connect,
  50         .ep_poll        = ktransport_ep_poll,
  51         .ep_disconnect  = ktransport_ep_disconnect,
  52         .create_conn    = cxgbi_create_conn,
  53 };
  54
  55 struct iscsi_transport_template cxgb4i = {
  56         .name           = "cxgb4i",
  57         .set_host_ip    = 1,
  58         .ep_connect     = ktransport_ep_connect,
  59         .ep_poll        = ktransport_ep_poll,
  60         .ep_disconnect  = ktransport_ep_disconnect,
  61         .create_conn    = cxgbi_create_conn,
  62 };
  63
  64 struct iscsi_transport_template bnx2i = {
  65         .name           = "bnx2i",
  66         .set_host_ip    = 1,
  67         .ep_connect     = ktransport_ep_connect,
  68         .ep_poll        = ktransport_ep_poll,
  69         .ep_disconnect  = ktransport_ep_disconnect,
  70 };
  71
  72 struct iscsi_transport_template be2iscsi = {
  73         .name           = "be2iscsi",
  74         .create_conn    = be2iscsi_create_conn,
  75         .ep_connect     = ktransport_ep_connect,
  76         .ep_poll        = ktransport_ep_poll,
  77         .ep_disconnect  = ktransport_ep_disconnect,
  78 };
  79
  80 struct iscsi_transport_template qla4xxx = {
  81         .name           = "qla4xxx",
  82 };
  83
  84 static struct iscsi_transport_template *iscsi_transport_templates[] = {
  85         &iscsi_tcp,
  86         &iscsi_iser,
  87         &cxgb3i,
  88         &cxgb4i,
  89         &bnx2i,
  90         &qla4xxx,
  91         &be2iscsi,
  92         NULL
  93 };
  94
  95 int set_transport_template(struct iscsi_transport *t)
  96 {
  97         struct iscsi_transport_template *tmpl;
  98         int j;
  99
 100         for (j = 0; iscsi_transport_templates[j] != NULL; j++) {
 101                 tmpl = iscsi_transport_templates[j];
 102
 103                 if (!strcmp(tmpl->name, t->name)) {
 104                         t->template = tmpl;
 105                         log_debug(3, "Matched transport %s\n", t->name);
 106                         return 0;
 107                 }
 108         }
 109
 110         log_error("Could not find template for %s. An updated iscsiadm "
 111                   "is probably needed.\n", t->name);
 112         return ENOSYS;
 113 }