From: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
This patch converts PSCSI to use an external set of device attributes,
and utilizes target_core_backend_configfs.h macros to generate a default
set of configfs extended-attr handlers.
It calls target_core_setup_sub_cits() to setup the initial config_item_type
based on existing target_core_configfs.c defaults, and using configfs_attribute
for hw_pi_prot_type, hw_block_size, hw_max_sectors, hw_queue_depth populates
pscsi_backend_dev_attrs[]
Only these four hw_* read-only device attributes are exports for PSCSI.
Signed-off-by: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
---
drivers/target/target_core_pscsi.c | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c
index 7c8291f..74873e4 100644
--- a/drivers/target/target_core_pscsi.c
+++ b/drivers/target/target_core_pscsi.c
@@ -44,6 +44,7 @@
#include <target/target_core_base.h>
#include <target/target_core_backend.h>
+#include <target/target_core_backend_configfs.h>
#include "target_core_alua.h"
#include "target_core_pscsi.h"
@@ -1165,6 +1166,26 @@ static void pscsi_req_done(struct request *req, int uptodate)
kfree(pt);
}
+DEF_TB_DEV_ATTRIB_RO(pscsi, hw_pi_prot_type);
+TB_DEV_ATTR_RO(pscsi, hw_pi_prot_type);
+
+DEF_TB_DEV_ATTRIB_RO(pscsi, hw_block_size);
+TB_DEV_ATTR_RO(pscsi, hw_block_size);
+
+DEF_TB_DEV_ATTRIB_RO(pscsi, hw_max_sectors);
+TB_DEV_ATTR_RO(pscsi, hw_max_sectors);
+
+DEF_TB_DEV_ATTRIB_RO(pscsi, hw_queue_depth);
+TB_DEV_ATTR_RO(pscsi, hw_queue_depth);
+
+static struct configfs_attribute *pscsi_backend_dev_attrs[] = {
+ &pscsi_dev_attrib_hw_pi_prot_type.attr,
+ &pscsi_dev_attrib_hw_block_size.attr,
+ &pscsi_dev_attrib_hw_max_sectors.attr,
+ &pscsi_dev_attrib_hw_queue_depth.attr,
+ NULL,
+};
+
static struct se_subsystem_api pscsi_template = {
.name = "pscsi",
.owner = THIS_MODULE,
@@ -1185,6 +1206,11 @@ static struct se_subsystem_api pscsi_template = {
static int __init pscsi_module_init(void)
{
+ struct target_backend_cits *tbc = &pscsi_template.tb_cits;
+
+ target_core_setup_sub_cits(&pscsi_template);
+ tbc->tb_dev_attrib_cit.ct_attrs = pscsi_backend_dev_attrs;
+
return transport_subsystem_register(&pscsi_template);
}
--
1.9.1
--
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
