ceph/src/spdk/lib/iscsi/tgt_node.h

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright (C) 2008-2012 Daisuke Aoyama <aoyama@peach.ne.jp>.
   5  *   Copyright (c) Intel Corporation.
   6  *   All rights reserved.
   7  *
   8  *   Redistribution and use in source and binary forms, with or without
   9  *   modification, are permitted provided that the following conditions
  10  *   are met:
  11  *
  12  *     * Redistributions of source code must retain the above copyright
  13  *       notice, this list of conditions and the following disclaimer.
  14  *     * Redistributions in binary form must reproduce the above copyright
  15  *       notice, this list of conditions and the following disclaimer in
  16  *       the documentation and/or other materials provided with the
  17  *       distribution.
  18  *     * Neither the name of Intel Corporation nor the names of its
  19  *       contributors may be used to endorse or promote products derived
  20  *       from this software without specific prior written permission.
  21  *
  22  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  23  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  24  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  25  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  26  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  27  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  28  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  29  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  30  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  31  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  32  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  33  */
  34
  35 #ifndef SPDK_ISCSI_TGT_NODE_H_
  36 #define SPDK_ISCSI_TGT_NODE_H_
  37
  38 #include <pthread.h>
  39 #include <time.h>
  40
  41 #include "spdk/scsi.h"
  42
  43 struct spdk_iscsi_conn;
  44
  45 #define SPDK_ISCSI_MAX_QUEUE_DEPTH      64
  46 #define MAX_TARGET_MAP                  256
  47 #define SPDK_TN_TAG_MAX 0x0000ffff
  48
  49 struct spdk_iscsi_tgt_node_map {
  50         struct spdk_iscsi_portal_grp    *pg;
  51         struct spdk_iscsi_init_grp      *ig;
  52 };
  53
  54 struct spdk_iscsi_tgt_node {
  55         int num;
  56         char *name;
  57         char *alias;
  58
  59         pthread_mutex_t mutex;
  60
  61         int auth_chap_disabled;
  62         int auth_chap_required;
  63         int auth_chap_mutual;
  64         int auth_group;
  65         int header_digest;
  66         int data_digest;
  67         int queue_depth;
  68
  69         struct spdk_scsi_dev *dev;
  70         /**
  71          * Counts number of active iSCSI connections associated with this
  72          *  target node.
  73          */
  74         uint32_t num_active_conns;
  75         int lcore;
  76
  77         int maxmap;
  78         struct spdk_iscsi_tgt_node_map map[MAX_TARGET_MAP];
  79 };
  80
  81 int spdk_iscsi_init_tgt_nodes(void);
  82
  83 int spdk_iscsi_shutdown_tgt_nodes(void);
  84 int spdk_iscsi_shutdown_tgt_node_by_name(const char *target_name);
  85 int spdk_iscsi_send_tgts(struct spdk_iscsi_conn *conn, const char *iiqn,
  86                          const char *iaddr, const char *tiqn, uint8_t *data, int alloc_len,
  87                          int data_len);
  88
  89 struct spdk_iscsi_init_grp *
  90 spdk_iscsi_find_init_grp(int tag);
  91
  92 /* This typedef exists to work around an astyle 2.05 bug.
  93  * Remove it when astyle is fixed.
  94 */
  95 typedef struct spdk_iscsi_tgt_node _spdk_iscsi_tgt_node;
  96
  97 _spdk_iscsi_tgt_node *
  98 spdk_iscsi_tgt_node_construct(int target_index,
  99                               const char *name, const char *alias,
 100                               int *pg_tag_list, int *ig_tag_list, uint16_t num_maps,
 101                               char *lun_name_list[], int *lun_id_list, int num_luns,
 102                               int queue_depth,
 103                               int no_auth_chap, int auth_chap, int auth_chap_mutual, int auth_group,
 104                               int header_digest, int data_digest);
 105
 106 int spdk_iscsi_tgt_node_access(struct spdk_iscsi_conn *conn,
 107                                struct spdk_iscsi_tgt_node *target, const char *iqn,
 108                                const char *addr);
 109 struct spdk_iscsi_tgt_node *spdk_iscsi_find_tgt_node(const char *target_name);
 110 int spdk_iscsi_tgt_node_reset(struct spdk_iscsi_tgt_node *target,
 111                               uint64_t lun);
 112 int spdk_iscsi_tgt_node_cleanup_luns(struct spdk_iscsi_conn *conn,
 113                                      struct spdk_iscsi_tgt_node *target);
 114 void spdk_iscsi_tgt_node_delete_map(struct spdk_iscsi_portal_grp *portal_group,
 115                                     struct spdk_iscsi_init_grp *initiator_group);
 116 #endif /* SPDK_ISCSI_TGT_NODE_H_ */