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 "spdk/stdinc.h" 39 40 #include "spdk/scsi.h" 41 42 struct spdk_iscsi_conn; 43 struct spdk_iscsi_init_grp; 44 struct spdk_iscsi_portal_grp; 45 struct spdk_iscsi_portal; 46 47 #define MAX_TARGET_MAP 256 48 #define SPDK_TN_TAG_MAX 0x0000ffff 49 50 struct spdk_iscsi_ig_map { 51 struct spdk_iscsi_init_grp *ig; 52 TAILQ_ENTRY(spdk_iscsi_ig_map) tailq; 53 }; 54 55 struct spdk_iscsi_pg_map { 56 struct spdk_iscsi_portal_grp *pg; 57 int num_ig_maps; 58 TAILQ_HEAD(, spdk_iscsi_ig_map) ig_map_head; 59 TAILQ_ENTRY(spdk_iscsi_pg_map) tailq ; 60 }; 61 62 struct spdk_iscsi_tgt_node { 63 int num; 64 char *name; 65 char *alias; 66 67 pthread_mutex_t mutex; 68 69 bool disable_chap; 70 bool require_chap; 71 bool mutual_chap; 72 int chap_group; 73 bool header_digest; 74 bool data_digest; 75 int queue_depth; 76 77 struct spdk_scsi_dev *dev; 78 /** 79 * Counts number of active iSCSI connections associated with this 80 * target node. 81 */ 82 uint32_t num_active_conns; 83 int lcore; 84 85 int num_pg_maps; 86 TAILQ_HEAD(, spdk_iscsi_pg_map) pg_map_head; 87 TAILQ_ENTRY(spdk_iscsi_tgt_node) tailq; 88 }; 89 90 int spdk_iscsi_init_tgt_nodes(void); 91 92 void spdk_iscsi_shutdown_tgt_nodes(void); 93 int spdk_iscsi_shutdown_tgt_node_by_name(const char *target_name); 94 int spdk_iscsi_send_tgts(struct spdk_iscsi_conn *conn, const char *iiqn, 95 const char *iaddr, const char *tiqn, uint8_t *data, int alloc_len, 96 int data_len); 97 98 /* This typedef exists to work around an astyle 2.05 bug. 99 * Remove it when astyle is fixed. 100 */ 101 typedef struct spdk_iscsi_tgt_node _spdk_iscsi_tgt_node; 102 103 /* 104 * bdev_name_list and lun_id_list are equal sized arrays of size num_luns. 105 * bdev_name_list refers to the names of the bdevs that will be used for the LUNs on the 106 * new target node. 107 * lun_id_list refers to the LUN IDs that will be used for the LUNs on the target node. 108 */ 109 _spdk_iscsi_tgt_node * 110 spdk_iscsi_tgt_node_construct(int target_index, 111 const char *name, const char *alias, 112 int *pg_tag_list, int *ig_tag_list, uint16_t num_maps, 113 const char *bdev_name_list[], int *lun_id_list, int num_luns, 114 int queue_depth, 115 bool disable_chap, bool require_chap, bool mutual_chap, int chap_group, 116 bool header_digest, bool data_digest); 117 118 int spdk_iscsi_tgt_node_add_pg_ig_maps(struct spdk_iscsi_tgt_node *target, 119 int *pg_tag_list, int *ig_tag_list, 120 uint16_t num_maps); 121 int spdk_iscsi_tgt_node_delete_pg_ig_maps(struct spdk_iscsi_tgt_node *target, 122 int *pg_tag_list, int *ig_tag_list, 123 uint16_t num_maps); 124 125 bool spdk_iscsi_tgt_node_access(struct spdk_iscsi_conn *conn, 126 struct spdk_iscsi_tgt_node *target, const char *iqn, 127 const char *addr); 128 struct spdk_iscsi_tgt_node *spdk_iscsi_find_tgt_node(const char *target_name); 129 int spdk_iscsi_tgt_node_reset(struct spdk_iscsi_tgt_node *target, 130 uint64_t lun); 131 int spdk_iscsi_tgt_node_cleanup_luns(struct spdk_iscsi_conn *conn, 132 struct spdk_iscsi_tgt_node *target); 133 void spdk_iscsi_tgt_node_delete_map(struct spdk_iscsi_portal_grp *portal_group, 134 struct spdk_iscsi_init_grp *initiator_group); 135 int spdk_iscsi_tgt_node_add_lun(struct spdk_iscsi_tgt_node *target, 136 const char *bdev_name, int lun_id); 137 #endif /* SPDK_ISCSI_TGT_NODE_H_ */ 138