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authorMike Christie <michael.christie@oracle.com>2023-09-27 21:09:07 -0500
committerMartin K. Petersen <martin.petersen@oracle.com>2023-10-13 15:53:58 -0400
commit6dbc829d101d9edb41081de01968792a009c9a78 (patch)
tree84987815a97254f1e60447dfda55efd6dc54128f /drivers/target
parente344c00e7ccd8c86e284999921fe0a6e623fffc8 (diff)
scsi: target: Export fabric driver direct submit settings
This exports the fabric driver's direct submit settings, so users know what the driver supports. It will be helpful when they are exporting a device through different targets and one doesn't support direct submission. The new files allow the fabric to report what submission types they default to and if they support direct submission: default_submit_type: 1 - TARGET_DIRECT_SUBMIT - If the user has not requested a specific value then the fabric requests direct submission. 2 - TARGET_QUEUE_SUBMIT - If the user has not requested a specific value then the fabric requests queued submission. Note that these fabric values are based on what the fabric driver currently defaults to for compat with exiting setups. direct_submit_supported: 0 - The fabric does not support direct submission. 1 - The fabric supports direct submission. Signed-off-by: Mike Christie <michael.christie@oracle.com> Link: https://lore.kernel.org/r/20230928020907.5730-8-michael.christie@oracle.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/target')
-rw-r--r--drivers/target/target_core_fabric_configfs.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/target/target_core_fabric_configfs.c b/drivers/target/target_core_fabric_configfs.c
index b7c637644cd4..7156a4dc1ca7 100644
--- a/drivers/target/target_core_fabric_configfs.c
+++ b/drivers/target/target_core_fabric_configfs.c
@@ -1065,8 +1065,32 @@ target_fabric_wwn_cmd_completion_affinity_store(struct config_item *item,
}
CONFIGFS_ATTR(target_fabric_wwn_, cmd_completion_affinity);
+static ssize_t
+target_fabric_wwn_default_submit_type_show(struct config_item *item,
+ char *page)
+{
+ struct se_wwn *wwn = container_of(to_config_group(item), struct se_wwn,
+ param_group);
+ return sysfs_emit(page, "%u\n",
+ wwn->wwn_tf->tf_ops->default_submit_type);
+}
+CONFIGFS_ATTR_RO(target_fabric_wwn_, default_submit_type);
+
+static ssize_t
+target_fabric_wwn_direct_submit_supported_show(struct config_item *item,
+ char *page)
+{
+ struct se_wwn *wwn = container_of(to_config_group(item), struct se_wwn,
+ param_group);
+ return sysfs_emit(page, "%u\n",
+ wwn->wwn_tf->tf_ops->direct_submit_supp);
+}
+CONFIGFS_ATTR_RO(target_fabric_wwn_, direct_submit_supported);
+
static struct configfs_attribute *target_fabric_wwn_param_attrs[] = {
&target_fabric_wwn_attr_cmd_completion_affinity,
+ &target_fabric_wwn_attr_default_submit_type,
+ &target_fabric_wwn_attr_direct_submit_supported,
NULL,
};