diff options
| -rw-r--r-- | drivers/target/iscsi/iscsi_target_configfs.c | 24 | ||||
| -rw-r--r-- | drivers/target/target_core_tpg.c | 23 | ||||
| -rw-r--r-- | include/target/target_core_base.h | 2 | ||||
| -rw-r--r-- | include/target/target_core_fabric.h | 2 |
4 files changed, 51 insertions, 0 deletions
diff --git a/drivers/target/iscsi/iscsi_target_configfs.c b/drivers/target/iscsi/iscsi_target_configfs.c index 542641c504a..5201d5ef970 100644 --- a/drivers/target/iscsi/iscsi_target_configfs.c +++ b/drivers/target/iscsi/iscsi_target_configfs.c @@ -754,9 +754,33 @@ static ssize_t lio_target_nacl_store_cmdsn_depth( TF_NACL_BASE_ATTR(lio_target, cmdsn_depth, S_IRUGO | S_IWUSR); +static ssize_t lio_target_nacl_show_tag( + struct se_node_acl *se_nacl, + char *page) +{ + return snprintf(page, PAGE_SIZE, "%s", se_nacl->acl_tag); +} + +static ssize_t lio_target_nacl_store_tag( + struct se_node_acl *se_nacl, + const char *page, + size_t count) +{ + int ret; + + ret = core_tpg_set_initiator_node_tag(se_nacl->se_tpg, se_nacl, page); + + if (ret < 0) + return ret; + return count; +} + +TF_NACL_BASE_ATTR(lio_target, tag, S_IRUGO | S_IWUSR); + static struct configfs_attribute *lio_target_initiator_attrs[] = { &lio_target_nacl_info.attr, &lio_target_nacl_cmdsn_depth.attr, + &lio_target_nacl_tag.attr, NULL, }; diff --git a/drivers/target/target_core_tpg.c b/drivers/target/target_core_tpg.c index 0163309e2ab..5192ac0337f 100644 --- a/drivers/target/target_core_tpg.c +++ b/drivers/target/target_core_tpg.c @@ -616,6 +616,29 @@ int core_tpg_set_initiator_node_queue_depth( } EXPORT_SYMBOL(core_tpg_set_initiator_node_queue_depth); +/* core_tpg_set_initiator_node_tag(): + * + * Initiator nodeacl tags are not used internally, but may be used by + * userspace to emulate aliases or groups. + * Returns length of newly-set tag or -EINVAL. + */ +int core_tpg_set_initiator_node_tag( + struct se_portal_group *tpg, + struct se_node_acl *acl, + const char *new_tag) +{ + if (strlen(new_tag) >= MAX_ACL_TAG_SIZE) + return -EINVAL; + + if (!strncmp("NULL", new_tag, 4)) { + acl->acl_tag[0] = '\0'; + return 0; + } + + return snprintf(acl->acl_tag, MAX_ACL_TAG_SIZE, "%s", new_tag); +} +EXPORT_SYMBOL(core_tpg_set_initiator_node_tag); + static int core_tpg_setup_virtual_lun0(struct se_portal_group *se_tpg) { /* Set in core_dev_setup_virtual_lun0() */ diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h index 1346ee04db5..7cae2360221 100644 --- a/include/target/target_core_base.h +++ b/include/target/target_core_base.h @@ -507,6 +507,8 @@ struct se_node_acl { bool acl_stop:1; u32 queue_depth; u32 acl_index; +#define MAX_ACL_TAG_SIZE 64 + char acl_tag[MAX_ACL_TAG_SIZE]; u64 num_cmds; u64 read_bytes; u64 write_bytes; diff --git a/include/target/target_core_fabric.h b/include/target/target_core_fabric.h index 9087b200e55..aaa1ee6ab39 100644 --- a/include/target/target_core_fabric.h +++ b/include/target/target_core_fabric.h @@ -142,6 +142,8 @@ int core_tpg_del_initiator_node_acl(struct se_portal_group *, struct se_node_acl *, int); int core_tpg_set_initiator_node_queue_depth(struct se_portal_group *, unsigned char *, u32, int); +int core_tpg_set_initiator_node_tag(struct se_portal_group *, + struct se_node_acl *, const char *); int core_tpg_register(struct target_core_fabric_ops *, struct se_wwn *, struct se_portal_group *, void *, int); int core_tpg_deregister(struct se_portal_group *); |