Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit bf751ba8 authored by govindarajulu.v's avatar govindarajulu.v Committed by David S. Miller
Browse files

driver/net: enic: record q_number and rss_hash for skb 



The following patch sets the skb->rxhash and skb->q_number.
This is used by RPS and RFS. Kernel can make use of hw provided hash
instead of calculating the hash.

Signed-off-by: default avatarGovindarajulu Varadarajan <govindarajulu90@gmail.com>
Signed-off-by: default avatarNishank Trivedi <nistrive@cisco.com>
Signed-off-by: default avatarChristian Benvenuti <benve@cisco.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 822473b6

drivers/net/ethernet/cisco/enic/enic_main.c

+11 −0
Original line number Diff line number Diff line
@@ -1034,6 +1034,14 @@ static void enic_rq_indicate_buf(struct vnic_rq *rq, 


		skb_put(skb, bytes_written);

		skb->protocol = eth_type_trans(skb, netdev);

		skb_record_rx_queue(skb, q_number);

		if (netdev->features & NETIF_F_RXHASH) {

			skb->rxhash = rss_hash;

			if (rss_type & (NIC_CFG_RSS_HASH_TYPE_TCP_IPV6_EX |

					NIC_CFG_RSS_HASH_TYPE_TCP_IPV6 |

					NIC_CFG_RSS_HASH_TYPE_TCP_IPV4))

				skb->l4_rxhash = true;

		}



		if ((netdev->features & NETIF_F_RXCSUM) && !csum_not_calc) {

			skb->csum = htons(checksum);
@@ -2209,6 +2217,7 @@ static int enic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) 
	}



	netif_set_real_num_tx_queues(netdev, enic->wq_count);

	netif_set_real_num_rx_queues(netdev, enic->rq_count);



	/* Setup notification timer, HW reset task, and wq locks

	 */
@@ -2258,6 +2267,8 @@ static int enic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) 
	if (ENIC_SETTING(enic, TSO))

		netdev->hw_features |= NETIF_F_TSO |

			NETIF_F_TSO6 | NETIF_F_TSO_ECN;

	if (ENIC_SETTING(enic, RSS))

		netdev->hw_features |= NETIF_F_RXHASH;

	if (ENIC_SETTING(enic, RXCSUM))

		netdev->hw_features |= NETIF_F_RXCSUM;