6 files changed, 36 insertions, 7 deletions

diff --git a/drivers/target/iscsi/iscsi_target_configfs.c b/drivers/target/iscsi/iscsi_target_configfs.c
index fde3624dce7e..e3318edb233d 100644
--- a/drivers/target/iscsi/iscsi_target_configfs.c
+++ b/drivers/target/iscsi/iscsi_target_configfs.c
@@ -1046,6 +1046,11 @@ TPG_ATTR(prod_mode_write_protect, S_IRUGO | S_IWUSR);
  */
 DEF_TPG_ATTRIB(demo_mode_discovery);
 TPG_ATTR(demo_mode_discovery, S_IRUGO | S_IWUSR);
+/*
+ * Define iscsi_tpg_attrib_s_default_erl
+ */
+DEF_TPG_ATTRIB(default_erl);
+TPG_ATTR(default_erl, S_IRUGO | S_IWUSR);
 
 static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = {
         &iscsi_tpg_attrib_authentication.attr,
@@ -1057,6 +1062,7 @@ static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = {
         &iscsi_tpg_attrib_demo_mode_write_protect.attr,
         &iscsi_tpg_attrib_prod_mode_write_protect.attr,
         &iscsi_tpg_attrib_demo_mode_discovery.attr,
+        &iscsi_tpg_attrib_default_erl.attr,
         NULL,
 };
 
@@ -1919,9 +1925,12 @@ static void lio_set_default_node_attributes(struct se_node_acl *se_acl)
 {
         struct iscsi_node_acl *acl = container_of(se_acl, struct iscsi_node_acl,
                                 se_node_acl);
+        struct se_portal_group *se_tpg = se_acl->se_tpg;
+        struct iscsi_portal_group *tpg = container_of(se_tpg,
+                                struct iscsi_portal_group, tpg_se_tpg);
 
         acl->node_attrib.nacl = acl;
-        iscsit_set_default_node_attribues(acl);
+        iscsit_set_default_node_attribues(acl, tpg);
 }
 
 static int lio_check_stop_free(struct se_cmd *se_cmd)
diff --git a/drivers/target/iscsi/iscsi_target_core.h b/drivers/target/iscsi/iscsi_target_core.h
index 8dcb3c1aa801..48f7b3bf4e8c 100644
--- a/drivers/target/iscsi/iscsi_target_core.h
+++ b/drivers/target/iscsi/iscsi_target_core.h
@@ -37,9 +37,6 @@
 #define NA_RANDOM_DATAIN_PDU_OFFSETS    0
 #define NA_RANDOM_DATAIN_SEQ_OFFSETS    0
 #define NA_RANDOM_R2T_OFFSETS           0
-#define NA_DEFAULT_ERL                  0
-#define NA_DEFAULT_ERL_MAX              2
-#define NA_DEFAULT_ERL_MIN              0
 
 /* struct iscsi_tpg_attrib sanity values */
 #define TA_AUTHENTICATION               1
@@ -59,6 +56,7 @@
 /* Disabled by default in production mode w/ explict ACLs */
 #define TA_PROD_MODE_WRITE_PROTECT      0
 #define TA_DEMO_MODE_DISCOVERY          1
+#define TA_DEFAULT_ERL                  0
 #define TA_CACHE_CORE_NPS               0
 
 
@@ -766,6 +764,7 @@ struct iscsi_tpg_attrib {
         u32                     demo_mode_write_protect;
         u32                     prod_mode_write_protect;
         u32                     demo_mode_discovery;
+        u32                     default_erl;
         struct iscsi_portal_group *tpg;
 };
 
diff --git a/drivers/target/iscsi/iscsi_target_nodeattrib.c b/drivers/target/iscsi/iscsi_target_nodeattrib.c
index 93bdc475eb00..16454a922e2b 100644
--- a/drivers/target/iscsi/iscsi_target_nodeattrib.c
+++ b/drivers/target/iscsi/iscsi_target_nodeattrib.c
@@ -33,7 +33,8 @@ static inline char *iscsit_na_get_initiatorname(
 }
 
 void iscsit_set_default_node_attribues(
-        struct iscsi_node_acl *acl)
+        struct iscsi_node_acl *acl,
+        struct iscsi_portal_group *tpg)
 {
         struct iscsi_node_attrib *a = &acl->node_attrib;
 
@@ -44,7 +45,7 @@ void iscsit_set_default_node_attribues(
         a->random_datain_pdu_offsets = NA_RANDOM_DATAIN_PDU_OFFSETS;
         a->random_datain_seq_offsets = NA_RANDOM_DATAIN_SEQ_OFFSETS;
         a->random_r2t_offsets = NA_RANDOM_R2T_OFFSETS;
-        a->default_erl = NA_DEFAULT_ERL;
+        a->default_erl = tpg->tpg_attrib.default_erl;
 }
 
 int iscsit_na_dataout_timeout(
diff --git a/drivers/target/iscsi/iscsi_target_nodeattrib.h b/drivers/target/iscsi/iscsi_target_nodeattrib.h
index c970b326ef23..0c69a46a62ec 100644
--- a/drivers/target/iscsi/iscsi_target_nodeattrib.h
+++ b/drivers/target/iscsi/iscsi_target_nodeattrib.h
@@ -1,7 +1,8 @@
 #ifndef ISCSI_TARGET_NODEATTRIB_H
 #define ISCSI_TARGET_NODEATTRIB_H
 
-extern void iscsit_set_default_node_attribues(struct iscsi_node_acl *);
+extern void iscsit_set_default_node_attribues(struct iscsi_node_acl *,
+                                              struct iscsi_portal_group *);
 extern int iscsit_na_dataout_timeout(struct iscsi_node_acl *, u32);
 extern int iscsit_na_dataout_timeout_retries(struct iscsi_node_acl *, u32);
 extern int iscsit_na_nopin_timeout(struct iscsi_node_acl *, u32);
diff --git a/drivers/target/iscsi/iscsi_target_tpg.c b/drivers/target/iscsi/iscsi_target_tpg.c
index 98ccf0bff546..39761837608d 100644
--- 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;
+}
diff --git a/drivers/target/iscsi/iscsi_target_tpg.h b/drivers/target/iscsi/iscsi_target_tpg.h
index 3e8ce8644082..213c0fc7fdc9 100644
--- a/drivers/target/iscsi/iscsi_target_tpg.h
+++ b/drivers/target/iscsi/iscsi_target_tpg.h
@@ -38,5 +38,6 @@ extern int iscsit_ta_cache_dynamic_acls(struct iscsi_portal_group *, u32);
 extern int iscsit_ta_demo_mode_write_protect(struct iscsi_portal_group *, u32);
 extern int iscsit_ta_prod_mode_write_protect(struct iscsi_portal_group *, u32);
 extern int iscsit_ta_demo_mode_discovery(struct iscsi_portal_group *, u32);
+extern int iscsit_ta_default_erl(struct iscsi_portal_group *, u32);
 
 #endif /* ISCSI_TARGET_TPG_H */