From ba5d3c66e02c3dac66a386b6af0dc9687a4dba67 Mon Sep 17 00:00:00 2001
From: Dimitris Michailidis <dm@chelsio.com>
Date: Mon, 2 Aug 2010 13:19:17 +0000
Subject: cxgb4: don't offload Rx checksums for IPv6 fragments
The checksum provided by the device doesn't include the L3 headers,
as IPv6 expects.
Signed-off-by: Dimitris Michailidis <dm@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/cxgb4/sge.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
(limited to 'drivers/net/cxgb4/sge.c')
diff --git a/drivers/net/cxgb4/sge.c b/drivers/net/cxgb4/sge.c
index 4388f72d586..304302a71db 100644
--- a/drivers/net/cxgb4/sge.c
+++ b/drivers/net/cxgb4/sge.c
@@ -1593,14 +1593,15 @@ int t4_ethrx_handler(struct sge_rspq *q, const __be64 *rsp,
if (csum_ok && (pi->rx_offload & RX_CSO) &&
(pkt->l2info & htonl(RXF_UDP | RXF_TCP))) {
- if (!pkt->ip_frag)
+ if (!pkt->ip_frag) {
skb->ip_summed = CHECKSUM_UNNECESSARY;
- else {
+ rxq->stats.rx_cso++;
+ } else if (pkt->l2info & htonl(RXF_IP)) {
__sum16 c = (__force __sum16)pkt->csum;
skb->csum = csum_unfold(c);
skb->ip_summed = CHECKSUM_COMPLETE;
+ rxq->stats.rx_cso++;
}
- rxq->stats.rx_cso++;
} else
skb->ip_summed = CHECKSUM_NONE;
--
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