diff options
| author | Dimitris Michailidis <dm@chelsio.com> | 2010-04-27 16:22:42 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-04-27 16:22:42 -0700 |
| commit | 87b6cf51acb4999fff7e6841986874b108679cb4 (patch) | |
| tree | 304fe476f4d3acd192ba7991d28b888845114586 /drivers/net/cxgb4 | |
| parent | 8cd9b13207f9a38e4da2d69bba51eb8dcbe1ead9 (diff) | |
| download | linux-87b6cf51acb4999fff7e6841986874b108679cb4.tar.bz2 | |
cxgb4: set skb->rxhash
Implement the ->set_flags ethtool method to control NETIF_F_RXHASH and
set skb->rxhash to the HW calculated hash accordingly.
Follow Eric Dumazet's suggestion and use the hash value raw.
Signed-off-by: Dimitris Michailidis <dm@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/cxgb4')
| -rw-r--r-- | drivers/net/cxgb4/cxgb4_main.c | 15 | ||||
| -rw-r--r-- | drivers/net/cxgb4/sge.c | 7 | ||||
| -rw-r--r-- | drivers/net/cxgb4/t4_msg.h | 1 |
3 files changed, 21 insertions, 2 deletions
diff --git a/drivers/net/cxgb4/cxgb4_main.c b/drivers/net/cxgb4/cxgb4_main.c index 5f582dba928f..1bad50041427 100644 --- a/drivers/net/cxgb4/cxgb4_main.c +++ b/drivers/net/cxgb4/cxgb4_main.c @@ -1711,6 +1711,18 @@ static int set_tso(struct net_device *dev, u32 value) return 0; } +static int set_flags(struct net_device *dev, u32 flags) +{ + if (flags & ~ETH_FLAG_RXHASH) + return -EOPNOTSUPP; + + if (flags & ETH_FLAG_RXHASH) + dev->features |= NETIF_F_RXHASH; + else + dev->features &= ~NETIF_F_RXHASH; + return 0; +} + static struct ethtool_ops cxgb_ethtool_ops = { .get_settings = get_settings, .set_settings = set_settings, @@ -1741,6 +1753,7 @@ static struct ethtool_ops cxgb_ethtool_ops = { .get_wol = get_wol, .set_wol = set_wol, .set_tso = set_tso, + .set_flags = set_flags, .flash_device = set_flash, }; @@ -3203,7 +3216,7 @@ static int __devinit init_one(struct pci_dev *pdev, netdev->features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6; netdev->features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM; - netdev->features |= NETIF_F_GRO | highdma; + netdev->features |= NETIF_F_GRO | NETIF_F_RXHASH | highdma; netdev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX; netdev->vlan_features = netdev->features & VLAN_FEAT; diff --git a/drivers/net/cxgb4/sge.c b/drivers/net/cxgb4/sge.c index 65d91c4ec9f5..d1f8f225e45a 100644 --- a/drivers/net/cxgb4/sge.c +++ b/drivers/net/cxgb4/sge.c @@ -1524,6 +1524,8 @@ static void do_gro(struct sge_eth_rxq *rxq, const struct pkt_gl *gl, skb->truesize += skb->data_len; skb->ip_summed = CHECKSUM_UNNECESSARY; skb_record_rx_queue(skb, rxq->rspq.idx); + if (rxq->rspq.netdev->features & NETIF_F_RXHASH) + skb->rxhash = (__force u32)pkt->rsshdr.hash_val; if (unlikely(pkt->vlan_ex)) { struct port_info *pi = netdev_priv(rxq->rspq.netdev); @@ -1565,7 +1567,7 @@ int t4_ethrx_handler(struct sge_rspq *q, const __be64 *rsp, if (unlikely(*(u8 *)rsp == CPL_TRACE_PKT)) return handle_trace_pkt(q->adap, si); - pkt = (void *)&rsp[1]; + pkt = (const struct cpl_rx_pkt *)rsp; csum_ok = pkt->csum_calc && !pkt->err_vec; if ((pkt->l2info & htonl(RXF_TCP)) && (q->netdev->features & NETIF_F_GRO) && csum_ok && !pkt->ip_frag) { @@ -1583,6 +1585,9 @@ int t4_ethrx_handler(struct sge_rspq *q, const __be64 *rsp, __skb_pull(skb, RX_PKT_PAD); /* remove ethernet header padding */ skb->protocol = eth_type_trans(skb, q->netdev); skb_record_rx_queue(skb, q->idx); + if (skb->dev->features & NETIF_F_RXHASH) + skb->rxhash = (__force u32)pkt->rsshdr.hash_val; + pi = netdev_priv(skb->dev); rxq->stats.pkts++; diff --git a/drivers/net/cxgb4/t4_msg.h b/drivers/net/cxgb4/t4_msg.h index fdb117443144..7a981b81afaf 100644 --- a/drivers/net/cxgb4/t4_msg.h +++ b/drivers/net/cxgb4/t4_msg.h @@ -503,6 +503,7 @@ struct cpl_rx_data_ack { }; struct cpl_rx_pkt { + struct rss_header rsshdr; u8 opcode; #if defined(__LITTLE_ENDIAN_BITFIELD) u8 iff:4; |