cns3xxx: add a small optimization for rx offload

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@33500 3c298f89-4303-0410-b956-a3cf2f4a3e73
2012-09-21 00:13:12 +00:00 · 2012-09-21 00:13:12 +00:00 · 19d64c1668
parent 341e4ab8dd
commit 19d64c1668
1 changed files with 27 additions and 0 deletions
--- a/target/linux/cns3xxx/patches-3.3/420-ethernet_optimize_rx_offload.patch
+++ b/target/linux/cns3xxx/patches-3.3/420-ethernet_optimize_rx_offload.patch
@ -0,0 +1,27 @@
+--- a/drivers/net/ethernet/cavium/cns3xxx_eth.c
+++ b/drivers/net/ethernet/cavium/cns3xxx_eth.c
+@@ -653,17 +653,17 @@ static int eth_poll(struct napi_struct *
+ 				case 6:
+ 				case 13:
+ 				case 14:
+-					if (desc->l4f)
+					if (!desc->l4f) {
+						skb->ip_summed = CHECKSUM_UNNECESSARY;
+						napi_gro_receive(napi, skb);
+ 						break;
+-
+-					skb->ip_summed = CHECKSUM_UNNECESSARY;
+-					break;
+					}
+					/* fall through */
+ 				default:
+-				break;
+					netif_receive_skb(skb);
+					break;
+ 			}
+ 
+-			napi_gro_receive(napi, skb);
+-
+ 			sw->frag_first = NULL;
+ 			sw->frag_last = NULL;
+ 		}