enic: enable ethtool LRO support

Enable ethtool support for get/set_flags so LRO can be turned on/off
by fwding drivers such as the bridge driver.  LRO is not compatible
with fwding drivers.

Signed-off-by: Scott Feldman <scofeldm@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 23 insertions, 19 deletions

diff --git a/drivers/net/enic/enic_main.c b/drivers/net/enic/enic_main.c
index 1c409df735d4..deddd76a550c 100644
--- a/drivers/net/enic/enic_main.c
+++ b/drivers/net/enic/enic_main.c
@@ -273,6 +273,8 @@ static struct ethtool_ops enic_ethtool_ops = {
         .set_sg = ethtool_op_set_sg,
         .get_tso = ethtool_op_get_tso,
         .set_tso = enic_set_tso,
+        .get_flags = ethtool_op_get_flags,
+        .set_flags = ethtool_op_set_flags,
 };
 
 static void enic_free_wq_buf(struct vnic_wq *wq, struct vnic_wq_buf *buf)
@@ -895,6 +897,7 @@ static void enic_rq_indicate_buf(struct vnic_rq *rq,
         int skipped, void *opaque)
 {
         struct enic *enic = vnic_dev_priv(rq->vdev);
+        struct net_device *netdev = enic->netdev;
         struct sk_buff *skb;
 
         u8 type, color, eop, sop, ingress_port, vlan_stripped;
@@ -929,7 +932,7 @@ static void enic_rq_indicate_buf(struct vnic_rq *rq,
                         if (net_ratelimit())
                                 printk(KERN_ERR PFX
                                         "%s: packet error: bad FCS\n",
-                                        enic->netdev->name);
+                                        netdev->name);
                 }
 
                 dev_kfree_skb_any(skb);
@@ -943,18 +946,18 @@ static void enic_rq_indicate_buf(struct vnic_rq *rq,
                  */
 
                 skb_put(skb, bytes_written);
-                skb->protocol = eth_type_trans(skb, enic->netdev);
+                skb->protocol = eth_type_trans(skb, netdev);
 
                 if (enic->csum_rx_enabled && !csum_not_calc) {
                         skb->csum = htons(checksum);
                         skb->ip_summed = CHECKSUM_COMPLETE;
                 }
 
-                skb->dev = enic->netdev;
+                skb->dev = netdev;
 
                 if (enic->vlan_group && vlan_stripped) {
 
-                        if (ENIC_SETTING(enic, LRO) && ipv4)
+                        if ((netdev->features & NETIF_F_LRO) && ipv4)
                                 lro_vlan_hwaccel_receive_skb(&enic->lro_mgr,
                                         skb, enic->vlan_group,
                                         vlan, cq_desc);
@@ -964,7 +967,7 @@ static void enic_rq_indicate_buf(struct vnic_rq *rq,
 
                 } else {
 
-                        if (ENIC_SETTING(enic, LRO) && ipv4)
+                        if ((netdev->features & NETIF_F_LRO) && ipv4)
                                 lro_receive_skb(&enic->lro_mgr, skb, cq_desc);
                         else
                                 netif_receive_skb(skb);
@@ -1062,7 +1065,7 @@ static int enic_poll(struct napi_struct *napi, int budget)
                 /* If no work done, flush all LROs and exit polling
                  */
 
-                if (ENIC_SETTING(enic, LRO))
+                if (netdev->features & NETIF_F_LRO)
                         lro_flush_all(&enic->lro_mgr);
 
                 netif_rx_complete(netdev, napi);
@@ -1106,7 +1109,7 @@ static int enic_poll_msix(struct napi_struct *napi, int budget)
                 /* If no work done, flush all LROs and exit polling
                  */
 
-                if (ENIC_SETTING(enic, LRO))
+                if (netdev->features & NETIF_F_LRO)
                         lro_flush_all(&enic->lro_mgr);
 
                 netif_rx_complete(netdev, napi);
@@ -1762,13 +1765,13 @@ static int __devinit enic_probe(struct pci_dev *pdev,
         }
 
         /* Get available resource counts
-        */
+         */
 
         enic_get_res_counts(enic);
 
         /* Set interrupt mode based on resource counts and system
          * capabilities
-        */
+         */
 
         err = enic_set_intr_mode(enic);
         if (err) {
@@ -1849,22 +1852,23 @@ static int __devinit enic_probe(struct pci_dev *pdev,
         if (ENIC_SETTING(enic, TSO))
                 netdev->features |= NETIF_F_TSO |
                         NETIF_F_TSO6 | NETIF_F_TSO_ECN;
+        if (ENIC_SETTING(enic, LRO))
+                netdev->features |= NETIF_F_LRO;
         if (using_dac)
                 netdev->features |= NETIF_F_HIGHDMA;
 
 
         enic->csum_rx_enabled = ENIC_SETTING(enic, RXCSUM);
 
-        if (ENIC_SETTING(enic, LRO)) {
-                enic->lro_mgr.max_aggr = ENIC_LRO_MAX_AGGR;
-                enic->lro_mgr.max_desc = ENIC_LRO_MAX_DESC;
-                enic->lro_mgr.lro_arr = enic->lro_desc;
-                enic->lro_mgr.get_skb_header = enic_get_skb_header;
-                enic->lro_mgr.features  = LRO_F_NAPI | LRO_F_EXTRACT_VLAN_ID;
-                enic->lro_mgr.dev = netdev;
-                enic->lro_mgr.ip_summed = CHECKSUM_COMPLETE;
-                enic->lro_mgr.ip_summed_aggr = CHECKSUM_UNNECESSARY;
-        }
+        enic->lro_mgr.max_aggr = ENIC_LRO_MAX_AGGR;
+        enic->lro_mgr.max_desc = ENIC_LRO_MAX_DESC;
+        enic->lro_mgr.lro_arr = enic->lro_desc;
+        enic->lro_mgr.get_skb_header = enic_get_skb_header;
+        enic->lro_mgr.features  = LRO_F_NAPI | LRO_F_EXTRACT_VLAN_ID;
+        enic->lro_mgr.dev = netdev;
+        enic->lro_mgr.ip_summed = CHECKSUM_COMPLETE;
+        enic->lro_mgr.ip_summed_aggr = CHECKSUM_UNNECESSARY;
+
 
         err = register_netdev(netdev);
         if (err) {