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authorMike Christie <mchristi@redhat.com>2017-01-13 13:47:48 +0300
committerNicholas Bellinger <nab@linux-iscsi.org>2017-02-19 08:36:50 +0300
commit0ab8ac6f504d61b59856bd34e62bbfd60edd2bb0 (patch)
tree7db286b7de7dd9e3347133dfcdd03f70e9b547af /drivers/target
parent6cb3216a7863fd13fb125f0867fce55c2bbd8c8e (diff)
downloadlinux-0ab8ac6f504d61b59856bd34e62bbfd60edd2bb0.tar.xz
target: export protocol identifier
I think the transport statistics device file was supposed to show scsiTransportProtocolType. It instead shows the fabric name which is normally closer to the driver name. I was thinking I cannot change from fabric name to protocol type name incase people are expecting the driver name, so this patch adds another file proto_id that exports the SCSI protocol identifier ID. Signed-off-by: Mike Christie <mchristi@redhat.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/target')
-rw-r--r--drivers/target/target_core_stat.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/target/target_core_stat.c b/drivers/target/target_core_stat.c
index 1a39033d2bff..be380e4acfcd 100644
--- a/drivers/target/target_core_stat.c
+++ b/drivers/target/target_core_stat.c
@@ -795,16 +795,34 @@ static ssize_t target_stat_transport_dev_name_show(struct config_item *item,
return ret;
}
+static ssize_t target_stat_transport_proto_id_show(struct config_item *item,
+ char *page)
+{
+ struct se_lun *lun = to_transport_stat(item);
+ struct se_device *dev;
+ struct se_portal_group *tpg = lun->lun_tpg;
+ ssize_t ret = -ENODEV;
+
+ rcu_read_lock();
+ dev = rcu_dereference(lun->lun_se_dev);
+ if (dev)
+ ret = snprintf(page, PAGE_SIZE, "%u\n", tpg->proto_id);
+ rcu_read_unlock();
+ return ret;
+}
+
CONFIGFS_ATTR_RO(target_stat_transport_, inst);
CONFIGFS_ATTR_RO(target_stat_transport_, device);
CONFIGFS_ATTR_RO(target_stat_transport_, indx);
CONFIGFS_ATTR_RO(target_stat_transport_, dev_name);
+CONFIGFS_ATTR_RO(target_stat_transport_, proto_id);
static struct configfs_attribute *target_stat_scsi_transport_attrs[] = {
&target_stat_transport_attr_inst,
&target_stat_transport_attr_device,
&target_stat_transport_attr_indx,
&target_stat_transport_attr_dev_name,
+ &target_stat_transport_attr_proto_id,
NULL,
};