diff options
| -rw-r--r-- | drivers/target/target_core_configfs.c | 1 | ||||
| -rw-r--r-- | drivers/target/target_core_fabric_configfs.c | 78 | ||||
| -rw-r--r-- | include/target/target_core_base.h | 1 | ||||
| -rw-r--r-- | include/target/target_core_fabric.h | 1 |
4 files changed, 79 insertions, 2 deletions
diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c index 102ec644bc8a..3b9e50c1ccef 100644 --- a/drivers/target/target_core_configfs.c +++ b/drivers/target/target_core_configfs.c @@ -490,6 +490,7 @@ void target_unregister_template(const struct target_core_fabric_ops *fo) * fabric driver unload of TFO->module to proceed. */ rcu_barrier(); + kfree(t->tf_tpg_base_cit.ct_attrs); kfree(t); return; } diff --git a/drivers/target/target_core_fabric_configfs.c b/drivers/target/target_core_fabric_configfs.c index fc7edc04ee09..0b65de9f2df1 100644 --- a/drivers/target/target_core_fabric_configfs.c +++ b/drivers/target/target_core_fabric_configfs.c @@ -815,8 +815,76 @@ static struct configfs_item_operations target_fabric_tpg_base_item_ops = { .release = target_fabric_tpg_release, }; -TF_CIT_SETUP_DRV(tpg_base, &target_fabric_tpg_base_item_ops, NULL); +static ssize_t target_fabric_tpg_base_enable_show(struct config_item *item, + char *page) +{ + return sysfs_emit(page, "%d\n", to_tpg(item)->enabled); +} + +static ssize_t target_fabric_tpg_base_enable_store(struct config_item *item, + const char *page, + size_t count) +{ + struct se_portal_group *se_tpg = to_tpg(item); + int ret; + bool op; + + ret = strtobool(page, &op); + if (ret) + return ret; + + if (se_tpg->enabled == op) + return count; + + ret = se_tpg->se_tpg_tfo->fabric_enable_tpg(se_tpg, op); + if (ret) + return ret; + + se_tpg->enabled = op; + + return count; +} + +CONFIGFS_ATTR(target_fabric_tpg_base_, enable); +static int +target_fabric_setup_tpg_base_cit(struct target_fabric_configfs *tf) +{ + struct config_item_type *cit = &tf->tf_tpg_base_cit; + struct configfs_attribute **attrs = NULL; + size_t nr_attrs = 0; + int i = 0; + + if (tf->tf_ops->tfc_tpg_base_attrs) + while (tf->tf_ops->tfc_tpg_base_attrs[nr_attrs] != NULL) + nr_attrs++; + + if (tf->tf_ops->fabric_enable_tpg) + nr_attrs++; + + if (nr_attrs == 0) + goto done; + + /* + 1 for final NULL in the array */ + attrs = kcalloc(nr_attrs + 1, sizeof(*attrs), GFP_KERNEL); + if (!attrs) + return -ENOMEM; + + if (tf->tf_ops->tfc_tpg_base_attrs) + for (; tf->tf_ops->tfc_tpg_base_attrs[i] != NULL; i++) + attrs[i] = tf->tf_ops->tfc_tpg_base_attrs[i]; + + if (tf->tf_ops->fabric_enable_tpg) + attrs[i] = &target_fabric_tpg_base_attr_enable; + +done: + cit->ct_item_ops = &target_fabric_tpg_base_item_ops; + cit->ct_attrs = attrs; + cit->ct_owner = tf->tf_ops->module; + pr_debug("Setup generic tpg_base\n"); + + return 0; +} /* End of tfc_tpg_base_cit */ /* Start of tfc_tpg_cit */ @@ -1028,12 +1096,18 @@ TF_CIT_SETUP_DRV(discovery, NULL, NULL); int target_fabric_setup_cits(struct target_fabric_configfs *tf) { + int ret; + target_fabric_setup_discovery_cit(tf); target_fabric_setup_wwn_cit(tf); target_fabric_setup_wwn_fabric_stats_cit(tf); target_fabric_setup_wwn_param_cit(tf); target_fabric_setup_tpg_cit(tf); - target_fabric_setup_tpg_base_cit(tf); + + ret = target_fabric_setup_tpg_base_cit(tf); + if (ret) + return ret; + target_fabric_setup_tpg_port_cit(tf); target_fabric_setup_tpg_port_stat_cit(tf); target_fabric_setup_tpg_lun_cit(tf); diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h index fb11c7693b25..2130f102798d 100644 --- a/include/target/target_core_base.h +++ b/include/target/target_core_base.h @@ -900,6 +900,7 @@ struct se_portal_group { * Negative values can be used by fabric drivers for internal use TPGs. */ int proto_id; + bool enabled; /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */ atomic_t tpg_pr_ref_count; /* Spinlock for adding/removing ACLed Nodes */ diff --git a/include/target/target_core_fabric.h b/include/target/target_core_fabric.h index 3c5ade7a04a6..38f0662476d1 100644 --- a/include/target/target_core_fabric.h +++ b/include/target/target_core_fabric.h @@ -89,6 +89,7 @@ struct target_core_fabric_ops { void (*add_wwn_groups)(struct se_wwn *); struct se_portal_group *(*fabric_make_tpg)(struct se_wwn *, const char *); + int (*fabric_enable_tpg)(struct se_portal_group *se_tpg, bool enable); void (*fabric_drop_tpg)(struct se_portal_group *); int (*fabric_post_link)(struct se_portal_group *, struct se_lun *); |