diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/target/target_core_tpg.c | 133 |
1 files changed, 56 insertions, 77 deletions
diff --git a/drivers/target/target_core_tpg.c b/drivers/target/target_core_tpg.c index 78dd53ada04a..0cd86ff9a792 100644 --- a/drivers/target/target_core_tpg.c +++ b/drivers/target/target_core_tpg.c @@ -254,24 +254,12 @@ static int core_create_device_list_for_node(struct se_node_acl *nacl) return 0; } -/* core_tpg_check_initiator_node_acl() - * - * - */ -struct se_node_acl *core_tpg_check_initiator_node_acl( - struct se_portal_group *tpg, - unsigned char *initiatorname) +static struct se_node_acl *target_alloc_node_acl(struct se_portal_group *tpg, + const unsigned char *initiatorname) { struct se_node_acl *acl; - acl = core_tpg_get_initiator_node_acl(tpg, initiatorname); - if (acl) - return acl; - - if (!tpg->se_tpg_tfo->tpg_check_demo_mode(tpg)) - return NULL; - - acl = tpg->se_tpg_tfo->tpg_alloc_fabric_acl(tpg); + acl = tpg->se_tpg_tfo->tpg_alloc_fabric_acl(tpg); if (!acl) return NULL; @@ -289,20 +277,60 @@ struct se_node_acl *core_tpg_check_initiator_node_acl( snprintf(acl->initiatorname, TRANSPORT_IQN_LEN, "%s", initiatorname); acl->se_tpg = tpg; acl->acl_index = scsi_get_new_index(SCSI_AUTH_INTR_INDEX); - acl->dynamic_node_acl = 1; tpg->se_tpg_tfo->set_default_node_attributes(acl); - if (core_create_device_list_for_node(acl) < 0) { - tpg->se_tpg_tfo->tpg_release_fabric_acl(tpg, acl); + if (core_create_device_list_for_node(acl) < 0) + goto out_free_acl; + if (core_set_queue_depth_for_node(tpg, acl) < 0) + goto out_free_device_list; + + return acl; + +out_free_device_list: + core_free_device_list_for_node(acl, tpg); +out_free_acl: + tpg->se_tpg_tfo->tpg_release_fabric_acl(tpg, acl); + return NULL; +} + +static void target_add_node_acl(struct se_node_acl *acl) +{ + struct se_portal_group *tpg = acl->se_tpg; + + spin_lock_irq(&tpg->acl_node_lock); + list_add_tail(&acl->acl_list, &tpg->acl_node_list); + tpg->num_node_acls++; + spin_unlock_irq(&tpg->acl_node_lock); + + pr_debug("%s_TPG[%hu] - Added %s ACL with TCQ Depth: %d for %s" + " Initiator Node: %s\n", + tpg->se_tpg_tfo->get_fabric_name(), + tpg->se_tpg_tfo->tpg_get_tag(tpg), + acl->dynamic_node_acl ? "DYNAMIC" : "", + acl->queue_depth, + tpg->se_tpg_tfo->get_fabric_name(), + acl->initiatorname); +} + +struct se_node_acl *core_tpg_check_initiator_node_acl( + struct se_portal_group *tpg, + unsigned char *initiatorname) +{ + struct se_node_acl *acl; + + acl = core_tpg_get_initiator_node_acl(tpg, initiatorname); + if (acl) + return acl; + + if (!tpg->se_tpg_tfo->tpg_check_demo_mode(tpg)) return NULL; - } - if (core_set_queue_depth_for_node(tpg, acl) < 0) { - core_free_device_list_for_node(acl, tpg); - tpg->se_tpg_tfo->tpg_release_fabric_acl(tpg, acl); + acl = target_alloc_node_acl(tpg, initiatorname); + if (!acl) return NULL; - } + acl->dynamic_node_acl = 1; + /* * Here we only create demo-mode MappedLUNs from the active * TPG LUNs if the fabric is not explicitly asking for @@ -312,16 +340,7 @@ struct se_node_acl *core_tpg_check_initiator_node_acl( (tpg->se_tpg_tfo->tpg_check_demo_mode_login_only(tpg) != 1)) core_tpg_add_node_to_devs(acl, tpg); - spin_lock_irq(&tpg->acl_node_lock); - list_add_tail(&acl->acl_list, &tpg->acl_node_list); - tpg->num_node_acls++; - spin_unlock_irq(&tpg->acl_node_lock); - - pr_debug("%s_TPG[%u] - Added DYNAMIC ACL with TCQ Depth: %d for %s" - " Initiator Node: %s\n", tpg->se_tpg_tfo->get_fabric_name(), - tpg->se_tpg_tfo->tpg_get_tag(tpg), acl->queue_depth, - tpg->se_tpg_tfo->get_fabric_name(), initiatorname); - + target_add_node_acl(acl); return acl; } EXPORT_SYMBOL(core_tpg_check_initiator_node_acl); @@ -368,7 +387,7 @@ struct se_node_acl *core_tpg_add_initiator_node_acl( " for %s\n", tpg->se_tpg_tfo->get_fabric_name(), tpg->se_tpg_tfo->tpg_get_tag(tpg), initiatorname); spin_unlock_irq(&tpg->acl_node_lock); - goto done; + return acl; } pr_err("ACL entry for %s Initiator" @@ -380,51 +399,11 @@ struct se_node_acl *core_tpg_add_initiator_node_acl( } spin_unlock_irq(&tpg->acl_node_lock); - acl = tpg->se_tpg_tfo->tpg_alloc_fabric_acl(tpg); - if (!acl) { - pr_err("struct se_node_acl pointer is NULL\n"); - return ERR_PTR(-EINVAL); - } - - INIT_LIST_HEAD(&acl->acl_list); - INIT_LIST_HEAD(&acl->acl_sess_list); - kref_init(&acl->acl_kref); - init_completion(&acl->acl_free_comp); - spin_lock_init(&acl->device_list_lock); - spin_lock_init(&acl->nacl_sess_lock); - atomic_set(&acl->acl_pr_ref_count, 0); - if (tpg->se_tpg_tfo->tpg_get_default_depth) - acl->queue_depth = tpg->se_tpg_tfo->tpg_get_default_depth(tpg); - else - acl->queue_depth = 1; - snprintf(acl->initiatorname, TRANSPORT_IQN_LEN, "%s", initiatorname); - acl->se_tpg = tpg; - acl->acl_index = scsi_get_new_index(SCSI_AUTH_INTR_INDEX); - - tpg->se_tpg_tfo->set_default_node_attributes(acl); - - if (core_create_device_list_for_node(acl) < 0) { - tpg->se_tpg_tfo->tpg_release_fabric_acl(tpg, acl); + acl = target_alloc_node_acl(tpg, initiatorname); + if (!acl) return ERR_PTR(-ENOMEM); - } - - if (core_set_queue_depth_for_node(tpg, acl) < 0) { - core_free_device_list_for_node(acl, tpg); - tpg->se_tpg_tfo->tpg_release_fabric_acl(tpg, acl); - return ERR_PTR(-EINVAL); - } - - spin_lock_irq(&tpg->acl_node_lock); - list_add_tail(&acl->acl_list, &tpg->acl_node_list); - tpg->num_node_acls++; - spin_unlock_irq(&tpg->acl_node_lock); - -done: - pr_debug("%s_TPG[%hu] - Added ACL with TCQ Depth: %d for %s" - " Initiator Node: %s\n", tpg->se_tpg_tfo->get_fabric_name(), - tpg->se_tpg_tfo->tpg_get_tag(tpg), acl->queue_depth, - tpg->se_tpg_tfo->get_fabric_name(), initiatorname); + target_add_node_acl(acl); return acl; } |
