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authorFelix Fietkau <nbd@openwrt.org>2012-09-21 00:13:12 +0000
committerFelix Fietkau <nbd@openwrt.org>2012-09-21 00:13:12 +0000
commit15159604d978ec6cfb34d9467c823e46f243e871 (patch)
tree015056a1ffb5a5930687aeafc7ed44706f4efa3d
parenta1c016fe16816d083686508e03cc36b0231f4ab2 (diff)
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cns3xxx: add a small optimization for rx offload
SVN-Revision: 33500
-rw-r--r--target/linux/cns3xxx/patches-3.3/420-ethernet_optimize_rx_offload.patch27
1 files changed, 27 insertions, 0 deletions
diff --git 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
new file mode 100644
index 0000000000..67929ef895
--- /dev/null
+++ 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;
+ }