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>
diff --git a/drivers/net/cxgb4/sge.c b/drivers/net/cxgb4/sge.c
index 65d91c4..d1f8f22 100644
--- a/drivers/net/cxgb4/sge.c
+++ b/drivers/net/cxgb4/sge.c
@@ -1524,6 +1524,8 @@
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 @@
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 @@
__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++;