1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright (C) 2008-2012 Daisuke Aoyama <aoyama@peach.ne.jp>. 3 * Copyright (C) 2016 Intel Corporation. 4 * All rights reserved. 5 */ 6 7 #ifndef SPDK_ISCSI_TGT_NODE_H_ 8 #define SPDK_ISCSI_TGT_NODE_H_ 9 10 #include "spdk/stdinc.h" 11 12 #include "iscsi/iscsi.h" 13 14 struct spdk_iscsi_conn; 15 struct spdk_iscsi_init_grp; 16 struct spdk_iscsi_portal_grp; 17 struct spdk_iscsi_portal; 18 struct spdk_json_write_ctx; 19 20 #define MAX_TARGET_MAP 256 21 #define SPDK_TN_TAG_MAX 0x0000ffff 22 23 typedef void (*iscsi_tgt_node_destruct_cb)(void *cb_arg, int rc); 24 25 struct spdk_iscsi_ig_map { 26 struct spdk_iscsi_init_grp *ig; 27 TAILQ_ENTRY(spdk_iscsi_ig_map) tailq; 28 }; 29 30 struct spdk_iscsi_pg_map { 31 struct spdk_iscsi_portal_grp *pg; 32 int num_ig_maps; 33 TAILQ_HEAD(, spdk_iscsi_ig_map) ig_map_head; 34 char redirect_host[MAX_PORTAL_ADDR + 1]; 35 char redirect_port[MAX_PORTAL_PORT + 1]; 36 TAILQ_ENTRY(spdk_iscsi_pg_map) tailq ; 37 }; 38 39 struct spdk_iscsi_tgt_node { 40 int num; 41 char name[MAX_TARGET_NAME + 1]; 42 char alias[MAX_TARGET_NAME + 1]; 43 44 pthread_mutex_t mutex; 45 46 bool disable_chap; 47 bool require_chap; 48 bool mutual_chap; 49 int chap_group; 50 bool header_digest; 51 bool data_digest; 52 int queue_depth; 53 54 struct spdk_scsi_dev *dev; 55 /** 56 * Counts number of active iSCSI connections associated with this 57 * target node. 58 */ 59 uint32_t num_active_conns; 60 struct spdk_iscsi_poll_group *pg; 61 62 int num_pg_maps; 63 TAILQ_HEAD(, spdk_iscsi_pg_map) pg_map_head; 64 TAILQ_ENTRY(spdk_iscsi_tgt_node) tailq; 65 66 bool destructed; 67 struct spdk_poller *destruct_poller; 68 iscsi_tgt_node_destruct_cb destruct_cb_fn; 69 void *destruct_cb_arg; 70 }; 71 72 void iscsi_shutdown_tgt_nodes(void); 73 void iscsi_shutdown_tgt_node_by_name(const char *target_name, 74 iscsi_tgt_node_destruct_cb cb_fn, void *cb_arg); 75 bool iscsi_tgt_node_is_destructed(struct spdk_iscsi_tgt_node *target); 76 int iscsi_send_tgts(struct spdk_iscsi_conn *conn, const char *iiqn, 77 const char *tiqn, uint8_t *data, int alloc_len, int data_len); 78 79 /* 80 * bdev_name_list and lun_id_list are equal sized arrays of size num_luns. 81 * bdev_name_list refers to the names of the bdevs that will be used for the LUNs on the 82 * new target node. 83 * lun_id_list refers to the LUN IDs that will be used for the LUNs on the target node. 84 */ 85 struct spdk_iscsi_tgt_node *iscsi_tgt_node_construct(int target_index, 86 const char *name, const char *alias, 87 int *pg_tag_list, int *ig_tag_list, uint16_t num_maps, 88 const char *bdev_name_list[], int *lun_id_list, int num_luns, 89 int queue_depth, 90 bool disable_chap, bool require_chap, bool mutual_chap, int chap_group, 91 bool header_digest, bool data_digest); 92 93 bool iscsi_check_chap_params(bool disable, bool require, bool mutual, int group); 94 95 int iscsi_target_node_add_pg_ig_maps(struct spdk_iscsi_tgt_node *target, 96 int *pg_tag_list, int *ig_tag_list, 97 uint16_t num_maps); 98 int iscsi_target_node_remove_pg_ig_maps(struct spdk_iscsi_tgt_node *target, 99 int *pg_tag_list, int *ig_tag_list, 100 uint16_t num_maps); 101 int iscsi_tgt_node_redirect(struct spdk_iscsi_tgt_node *target, int pg_tag, 102 const char *host, const char *port); 103 bool iscsi_tgt_node_is_redirected(struct spdk_iscsi_conn *conn, 104 struct spdk_iscsi_tgt_node *target, 105 char *buf, int buf_len); 106 107 bool iscsi_tgt_node_access(struct spdk_iscsi_conn *conn, 108 struct spdk_iscsi_tgt_node *target, const char *iqn, 109 const char *addr); 110 struct spdk_iscsi_tgt_node *iscsi_find_tgt_node(const char *target_name); 111 int iscsi_tgt_node_cleanup_luns(struct spdk_iscsi_conn *conn, 112 struct spdk_iscsi_tgt_node *target); 113 void iscsi_tgt_node_delete_map(struct spdk_iscsi_portal_grp *portal_group, 114 struct spdk_iscsi_init_grp *initiator_group); 115 int iscsi_tgt_node_add_lun(struct spdk_iscsi_tgt_node *target, 116 const char *bdev_name, int lun_id); 117 int iscsi_tgt_node_set_chap_params(struct spdk_iscsi_tgt_node *target, 118 bool disable_chap, bool require_chap, 119 bool mutual_chap, int32_t chap_group); 120 void iscsi_tgt_nodes_info_json(struct spdk_json_write_ctx *w); 121 void iscsi_tgt_nodes_config_json(struct spdk_json_write_ctx *w); 122 #endif /* SPDK_ISCSI_TGT_NODE_H_ */ 123