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cxgb4: don't offload Rx checksums for IPv6 fragments

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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>
This commit is contained in:
Dimitris Michailidis
2010-08-02 13:19:17 +00:00
committed by David S. Miller
parent 63bcceec6e
commit ba5d3c66e0
2 changed files with 6 additions and 3 deletions
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7
drivers/net/cxgb4/sge.c
View File

@@ -1593,14 +1593,15 @@ int t4_ethrx_handler(struct sge_rspq *q, const __be64 *rsp,
if (csum_ok && (pi->rx_offload & RX_CSO) && if (csum_ok && (pi->rx_offload & RX_CSO) &&
(pkt->l2info & htonl(RXF_UDP | RXF_TCP))) { (pkt->l2info & htonl(RXF_UDP | RXF_TCP))) {
if (!pkt->ip_frag) if (!pkt->ip_frag) {
skb->ip_summed = CHECKSUM_UNNECESSARY; skb->ip_summed = CHECKSUM_UNNECESSARY;
else { rxq->stats.rx_cso++;
} else if (pkt->l2info & htonl(RXF_IP)) {
__sum16 c = (__force __sum16)pkt->csum; __sum16 c = (__force __sum16)pkt->csum;
skb->csum = csum_unfold(c); skb->csum = csum_unfold(c);
skb->ip_summed = CHECKSUM_COMPLETE; skb->ip_summed = CHECKSUM_COMPLETE;
rxq->stats.rx_cso++;
} }
rxq->stats.rx_cso++;
} else } else
skb->ip_summed = CHECKSUM_NONE; skb->ip_summed = CHECKSUM_NONE;

2
drivers/net/cxgb4/t4_msg.h
View File

@@ -529,6 +529,8 @@ struct cpl_rx_pkt {
__be32 l2info; __be32 l2info;
#define RXF_UDP (1 << 22) #define RXF_UDP (1 << 22)
#define RXF_TCP (1 << 23) #define RXF_TCP (1 << 23)
#define RXF_IP (1 << 24)
#define RXF_IP6 (1 << 25)
__be16 hdr_len; __be16 hdr_len;
__be16 err_vec; __be16 err_vec;
}; };