From mboxrd@z Thu Jan 1 00:00:00 1970 From: Fan Du Subject: [PATCH v2 1/3] ixgbe: Specify rx hash type wrt rx desc RSS type Date: Wed, 29 Apr 2015 10:57:39 +0800 Message-ID: <1430276261-29821-2-git-send-email-fan.du@intel.com> References: <1430276261-29821-1-git-send-email-fan.du@intel.com> Cc: alexander.h.duyck@redhat.com, emil.s.tantilov@intel.com, intel-wired-lan@lists.osuosl.org, netdev@vger.kernel.org, Fan Du To: jeffrey.t.kirsher@intel.com Return-path: Received: from mga02.intel.com ([134.134.136.20]:39991 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1031389AbbD2DEI (ORCPT ); Tue, 28 Apr 2015 23:04:08 -0400 In-Reply-To: <1430276261-29821-1-git-send-email-fan.du@intel.com> Sender: netdev-owner@vger.kernel.org List-ID: RSS could be leveraged by taking account L4 src/dst ports as ingredients, thus ingress skb rx hash type should honor such the real configuration. Signed-off-by: Fan Du --- drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 25 +++++++++++++++++++++---- 1 files changed, 21 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index d3f4b0c..5df896b 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -1357,14 +1357,31 @@ static int __ixgbe_notify_dca(struct device *dev, void *data) } #endif /* CONFIG_IXGBE_DCA */ + +#define IXGBE_RSS_L4_TYPES_MASK \ + ((1ul << IXGBE_RXDADV_RSSTYPE_IPV4_TCP) | \ + (1ul << IXGBE_RXDADV_RSSTYPE_IPV4_UDP) | \ + (1ul << IXGBE_RXDADV_RSSTYPE_IPV6_TCP) | \ + (1ul << IXGBE_RXDADV_RSSTYPE_IPV6_UDP)) + static inline void ixgbe_rx_hash(struct ixgbe_ring *ring, union ixgbe_adv_rx_desc *rx_desc, struct sk_buff *skb) { - if (ring->netdev->features & NETIF_F_RXHASH) - skb_set_hash(skb, - le32_to_cpu(rx_desc->wb.lower.hi_dword.rss), - PKT_HASH_TYPE_L3); + u16 rss_type; + + if (!(ring->netdev->features & NETIF_F_RXHASH)) + return; + + rss_type = le16_to_cpu(rx_desc->wb.lower.lo_dword.hs_rss.pkt_info) & + IXGBE_RXDADV_RSSTYPE_MASK; + + if (!rss_type) + return; + + skb_set_hash(skb, le32_to_cpu(rx_desc->wb.lower.hi_dword.rss), + (IXGBE_RSS_L4_TYPES_MASK & (1ul << rss_type)) ? + PKT_HASH_TYPE_L4 : PKT_HASH_TYPE_L3); } #ifdef IXGBE_FCOE -- 1.7.1