diff options
Diffstat (limited to 'src/spdk/lib/iscsi/tgt_node.h')
| -rw-r--r-- | src/spdk/lib/iscsi/tgt_node.h | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/src/spdk/lib/iscsi/tgt_node.h b/src/spdk/lib/iscsi/tgt_node.h new file mode 100644 index 000000000..2787fac91 --- /dev/null +++ b/src/spdk/lib/iscsi/tgt_node.h @@ -0,0 +1,147 @@ +/*- + * BSD LICENSE + * + * Copyright (C) 2008-2012 Daisuke Aoyama <aoyama@peach.ne.jp>. + * Copyright (c) Intel Corporation. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef SPDK_ISCSI_TGT_NODE_H_ +#define SPDK_ISCSI_TGT_NODE_H_ + +#include "spdk/stdinc.h" + +#include "iscsi/iscsi.h" + +struct spdk_iscsi_conn; +struct spdk_iscsi_init_grp; +struct spdk_iscsi_portal_grp; +struct spdk_iscsi_portal; +struct spdk_json_write_ctx; + +#define MAX_TARGET_MAP 256 +#define SPDK_TN_TAG_MAX 0x0000ffff + +typedef void (*iscsi_tgt_node_destruct_cb)(void *cb_arg, int rc); + +struct spdk_iscsi_ig_map { + struct spdk_iscsi_init_grp *ig; + TAILQ_ENTRY(spdk_iscsi_ig_map) tailq; +}; + +struct spdk_iscsi_pg_map { + struct spdk_iscsi_portal_grp *pg; + int num_ig_maps; + TAILQ_HEAD(, spdk_iscsi_ig_map) ig_map_head; + TAILQ_ENTRY(spdk_iscsi_pg_map) tailq ; +}; + +struct spdk_iscsi_tgt_node { + int num; + char name[MAX_TARGET_NAME + 1]; + char alias[MAX_TARGET_NAME + 1]; + + pthread_mutex_t mutex; + + bool disable_chap; + bool require_chap; + bool mutual_chap; + int chap_group; + bool header_digest; + bool data_digest; + int queue_depth; + + struct spdk_scsi_dev *dev; + /** + * Counts number of active iSCSI connections associated with this + * target node. + */ + uint32_t num_active_conns; + struct spdk_iscsi_poll_group *pg; + + int num_pg_maps; + TAILQ_HEAD(, spdk_iscsi_pg_map) pg_map_head; + TAILQ_ENTRY(spdk_iscsi_tgt_node) tailq; + + bool destructed; + struct spdk_poller *destruct_poller; + iscsi_tgt_node_destruct_cb destruct_cb_fn; + void *destruct_cb_arg; +}; + +int iscsi_parse_tgt_nodes(void); + +void iscsi_shutdown_tgt_nodes(void); +void iscsi_shutdown_tgt_node_by_name(const char *target_name, + iscsi_tgt_node_destruct_cb cb_fn, void *cb_arg); +bool iscsi_tgt_node_is_destructed(struct spdk_iscsi_tgt_node *target); +int iscsi_send_tgts(struct spdk_iscsi_conn *conn, const char *iiqn, + const char *iaddr, const char *tiqn, uint8_t *data, int alloc_len, + int data_len); + +/* + * bdev_name_list and lun_id_list are equal sized arrays of size num_luns. + * bdev_name_list refers to the names of the bdevs that will be used for the LUNs on the + * new target node. + * lun_id_list refers to the LUN IDs that will be used for the LUNs on the target node. + */ +struct spdk_iscsi_tgt_node *iscsi_tgt_node_construct(int target_index, + const char *name, const char *alias, + int *pg_tag_list, int *ig_tag_list, uint16_t num_maps, + const char *bdev_name_list[], int *lun_id_list, int num_luns, + int queue_depth, + bool disable_chap, bool require_chap, bool mutual_chap, int chap_group, + bool header_digest, bool data_digest); + +bool iscsi_check_chap_params(bool disable, bool require, bool mutual, int group); + +int iscsi_target_node_add_pg_ig_maps(struct spdk_iscsi_tgt_node *target, + int *pg_tag_list, int *ig_tag_list, + uint16_t num_maps); +int iscsi_target_node_remove_pg_ig_maps(struct spdk_iscsi_tgt_node *target, + int *pg_tag_list, int *ig_tag_list, + uint16_t num_maps); + +bool iscsi_tgt_node_access(struct spdk_iscsi_conn *conn, + struct spdk_iscsi_tgt_node *target, const char *iqn, + const char *addr); +struct spdk_iscsi_tgt_node *iscsi_find_tgt_node(const char *target_name); +int iscsi_tgt_node_cleanup_luns(struct spdk_iscsi_conn *conn, + struct spdk_iscsi_tgt_node *target); +void iscsi_tgt_node_delete_map(struct spdk_iscsi_portal_grp *portal_group, + struct spdk_iscsi_init_grp *initiator_group); +int iscsi_tgt_node_add_lun(struct spdk_iscsi_tgt_node *target, + const char *bdev_name, int lun_id); +int iscsi_tgt_node_set_chap_params(struct spdk_iscsi_tgt_node *target, + bool disable_chap, bool require_chap, + bool mutual_chap, int32_t chap_group); +void iscsi_tgt_nodes_config_text(FILE *fp); +void iscsi_tgt_nodes_info_json(struct spdk_json_write_ctx *w); +void iscsi_tgt_nodes_config_json(struct spdk_json_write_ctx *w); +#endif /* SPDK_ISCSI_TGT_NODE_H_ */ |