diff options
| author | Divy Le Ray <divy@chelsio.com> | 2010-02-08 22:37:24 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-02-08 22:37:24 -0800 |
| commit | 2d171886b183982feb03446997c65e9e212b948e (patch) | |
| tree | 34e88be6ca9b1fcd909957d0d3894b8d1c561f58 | |
| parent | 2fc1b5dd99f66d93ffc23fd8df82d384c1a354c8 (diff) | |
cxgb3: fix GRO checksum check
Verify the HW checksum state for frames handed to GRO processing.
Signed-off-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/cxgb3/sge.c | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/drivers/net/cxgb3/sge.c b/drivers/net/cxgb3/sge.c index bdbd14727e4..318a018ca7c 100644 --- a/drivers/net/cxgb3/sge.c +++ b/drivers/net/cxgb3/sge.c @@ -2079,6 +2079,7 @@ static void lro_add_page(struct adapter *adap, struct sge_qset *qs, struct sge_fl *fl, int len, int complete) { struct rx_sw_desc *sd = &fl->sdesc[fl->cidx]; + struct port_info *pi = netdev_priv(qs->netdev); struct sk_buff *skb = NULL; struct cpl_rx_pkt *cpl; struct skb_frag_struct *rx_frag; @@ -2116,11 +2117,18 @@ static void lro_add_page(struct adapter *adap, struct sge_qset *qs, if (!nr_frags) { offset = 2 + sizeof(struct cpl_rx_pkt); - qs->lro_va = sd->pg_chunk.va + 2; - } - len -= offset; + cpl = qs->lro_va = sd->pg_chunk.va + 2; - prefetch(qs->lro_va); + if ((pi->rx_offload & T3_RX_CSUM) && + cpl->csum_valid && cpl->csum == htons(0xffff)) { + skb->ip_summed = CHECKSUM_UNNECESSARY; + qs->port_stats[SGE_PSTAT_RX_CSUM_GOOD]++; + } else + skb->ip_summed = CHECKSUM_NONE; + } else + cpl = qs->lro_va; + + len -= offset; rx_frag += nr_frags; rx_frag->page = sd->pg_chunk.page; @@ -2136,12 +2144,8 @@ static void lro_add_page(struct adapter *adap, struct sge_qset *qs, return; skb_record_rx_queue(skb, qs - &adap->sge.qs[0]); - skb->ip_summed = CHECKSUM_UNNECESSARY; - cpl = qs->lro_va; if (unlikely(cpl->vlan_valid)) { - struct net_device *dev = qs->netdev; - struct port_info *pi = netdev_priv(dev); struct vlan_group *grp = pi->vlan_grp; if (likely(grp != NULL)) { |