[SCSI] scsi_transport_iscsi: Added support to update mtu

Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index b85f8a4b89626d7f46b0af2d39dbc4a729ed068b..b3a2515386f84a16ed69704c5d16e9c9f802b44c 100644 (file)
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -323,6 +323,7 @@ iscsi_iface_net_attr(iface, enabled, ISCSI_NET_PARAM_IFACE_ENABLE);
 iscsi_iface_net_attr(iface, vlan, ISCSI_NET_PARAM_VLAN_ID);
 iscsi_iface_net_attr(iface, vlan_priority, ISCSI_NET_PARAM_VLAN_PRIORITY);
 iscsi_iface_net_attr(iface, vlan_enabled, ISCSI_NET_PARAM_VLAN_ENABLED);
+iscsi_iface_net_attr(iface, mtu, ISCSI_NET_PARAM_MTU);
 
 static mode_t iscsi_iface_attr_is_visible(struct kobject *kobj,
                                          struct attribute *attr, int i)
@@ -340,6 +341,8 @@ static mode_t iscsi_iface_attr_is_visible(struct kobject *kobj,
                param = ISCSI_NET_PARAM_VLAN_PRIORITY;
        else if (attr == &dev_attr_iface_vlan_enabled.attr)
                param = ISCSI_NET_PARAM_VLAN_ENABLED;
+       else if (attr == &dev_attr_iface_mtu.attr)
+               param = ISCSI_NET_PARAM_MTU;
        else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) {
                if (attr == &dev_attr_ipv4_iface_ipaddress.attr)
                        param = ISCSI_NET_PARAM_IPV4_ADDR;
@@ -386,6 +389,7 @@ static struct attribute *iscsi_iface_attrs[] = {
        &dev_attr_ipv6_iface_router_addr.attr,
        &dev_attr_ipv6_iface_ipaddr_autocfg.attr,
        &dev_attr_ipv6_iface_linklocal_autocfg.attr,
+       &dev_attr_iface_mtu.attr,
        NULL,
 };
 

diff --git a/include/scsi/iscsi_if.h b/include/scsi/iscsi_if.h
index 629ca42dfe75b32123c1279c1d189c87ee126998..d1f092762dfd445706c9ae68a980d70763f187c4 100644 (file)
--- a/include/scsi/iscsi_if.h
+++ b/include/scsi/iscsi_if.h
@@ -313,6 +313,7 @@ enum iscsi_net_param {
        ISCSI_NET_PARAM_VLAN_ENABLED            = 15,
        ISCSI_NET_PARAM_IFACE_TYPE              = 16,
        ISCSI_NET_PARAM_IFACE_NAME              = 17,
+       ISCSI_NET_PARAM_MTU                     = 18,
 };
 
 enum iscsi_conn_state {