Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934330Ab3IDFrv (ORCPT ); Wed, 4 Sep 2013 01:47:51 -0400 Received: from mail-pb0-f46.google.com ([209.85.160.46]:43797 "EHLO mail-pb0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934300Ab3IDFrt (ORCPT ); Wed, 4 Sep 2013 01:47:49 -0400 From: Govindarajulu Varadarajan To: davem@davemloft.net, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Cc: benve@cisco.com, ssujith@cisco.com, nistrive@cisco.com, umalhi@cisco.com, Govindarajulu Varadarajan Subject: [PATCH net-next 2/5] driver/net: enic: record q_number and rss_hash for skb Date: Wed, 4 Sep 2013 11:17:15 +0530 Message-Id: <1378273638-7780-3-git-send-email-govindarajulu90@gmail.com> X-Mailer: git-send-email 1.8.4 In-Reply-To: <1378273638-7780-1-git-send-email-govindarajulu90@gmail.com> References: <1378273638-7780-1-git-send-email-govindarajulu90@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2103 Lines: 55 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: Govindarajulu Varadarajan Signed-off-by: Nishank Trivedi Signed-off-by: Christian Benvenuti --- drivers/net/ethernet/cisco/enic/enic_main.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/net/ethernet/cisco/enic/enic_main.c b/drivers/net/ethernet/cisco/enic/enic_main.c index 1ab3f18..93898ba 100644 --- a/drivers/net/ethernet/cisco/enic/enic_main.c +++ b/drivers/net/ethernet/cisco/enic/enic_main.c @@ -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; -- 1.8.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/