iscsi-target: Expose default_erl as TPG attribute

[firefly-linux-kernel-4.4.55.git] / drivers / target / iscsi / iscsi_target_tpg.c

diff --git a/drivers/target/iscsi/iscsi_target_tpg.c b/drivers/target/iscsi/iscsi_target_tpg.c
index 98ccf0bff546ceae2b802947fc8c677a9ae2c13f..39761837608d3a2ff059356e1049779580182952 100644 (file)
--- a/drivers/target/iscsi/iscsi_target_tpg.c
+++ b/drivers/target/iscsi/iscsi_target_tpg.c
@@ -224,6 +224,7 @@ static void iscsit_set_default_tpg_attribs(struct iscsi_portal_group *tpg)
        a->demo_mode_write_protect = TA_DEMO_MODE_WRITE_PROTECT;
        a->prod_mode_write_protect = TA_PROD_MODE_WRITE_PROTECT;
        a->demo_mode_discovery = TA_DEMO_MODE_DISCOVERY;
+       a->default_erl = TA_DEFAULT_ERL;
 }
 
 int iscsit_tpg_add_portal_group(struct iscsi_tiqn *tiqn, struct iscsi_portal_group *tpg)
@@ -840,3 +841,20 @@ int iscsit_ta_demo_mode_discovery(
 
        return 0;
 }
+
+int iscsit_ta_default_erl(
+       struct iscsi_portal_group *tpg,
+       u32 default_erl)
+{
+       struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
+
+       if ((default_erl != 0) && (default_erl != 1) && (default_erl != 2)) {
+               pr_err("Illegal value for default_erl: %u\n", default_erl);
+               return -EINVAL;
+       }
+
+       a->default_erl = default_erl;
+       pr_debug("iSCSI_TPG[%hu] - DefaultERL: %u\n", tpg->tpgt, a->default_erl);
+
+       return 0;
+}