From patchwork Wed Apr 29 02:57:40 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fan Du X-Patchwork-Id: 465863 X-Patchwork-Delegate: jeffrey.t.kirsher@intel.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from hemlock.osuosl.org (hemlock.osuosl.org [140.211.166.133]) by ozlabs.org (Postfix) with ESMTP id 3AAEB140321 for ; Wed, 29 Apr 2015 13:04:36 +1000 (AEST) Received: from localhost (localhost [127.0.0.1]) by hemlock.osuosl.org (Postfix) with ESMTP id 86E0395645; Wed, 29 Apr 2015 03:04:35 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from hemlock.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id tlC2GgTD2SLH; Wed, 29 Apr 2015 03:04:35 +0000 (UTC) Received: from ash.osuosl.org (ash.osuosl.org [140.211.166.34]) by hemlock.osuosl.org (Postfix) with ESMTP id 08E8C95690; Wed, 29 Apr 2015 03:04:35 +0000 (UTC) X-Original-To: intel-wired-lan@lists.osuosl.org Delivered-To: intel-wired-lan@lists.osuosl.org Received: from silver.osuosl.org (silver.osuosl.org [140.211.166.136]) by ash.osuosl.org (Postfix) with ESMTP id 103F51BF978 for ; Wed, 29 Apr 2015 03:04:34 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by silver.osuosl.org (Postfix) with ESMTP id 0D07D3359A for ; Wed, 29 Apr 2015 03:04:34 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from silver.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id rVzBZIQlrTeS for ; Wed, 29 Apr 2015 03:04:33 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by silver.osuosl.org (Postfix) with ESMTP id 033E2335BF for ; Wed, 29 Apr 2015 03:04:32 +0000 (UTC) Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by orsmga103.jf.intel.com with ESMTP; 28 Apr 2015 20:04:11 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.11,668,1422950400"; d="scan'208";a="486977431" Received: from dufan-optiplex-9010.bj.intel.com ([10.238.155.110]) by FMSMGA003.fm.intel.com with ESMTP; 28 Apr 2015 20:04:06 -0700 From: Fan Du To: jeffrey.t.kirsher@intel.com Date: Wed, 29 Apr 2015 10:57:40 +0800 Message-Id: <1430276261-29821-3-git-send-email-fan.du@intel.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1430276261-29821-1-git-send-email-fan.du@intel.com> References: <1430276261-29821-1-git-send-email-fan.du@intel.com> Cc: netdev@vger.kernel.org, Fan Du , intel-wired-lan@lists.osuosl.org Subject: [Intel-wired-lan] [PATCH v2 2/3] ixgbevf: Set rx hash type for ingress packets X-BeenThere: intel-wired-lan@lists.osuosl.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Intel Wired Ethernet Linux Kernel Driver Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-wired-lan-bounces@lists.osuosl.org Sender: "Intel-wired-lan" Set hash type for ingress packets according to NIC advanced receive descriptors RSS type part. Signed-off-by: Fan Du Tested-by: Phil Schmitt --- drivers/net/ethernet/intel/ixgbevf/defines.h | 12 +++++++++ drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 27 +++++++++++++++++++++ 2 files changed, 39 insertions(+), 0 deletions(-) diff --git a/drivers/net/ethernet/intel/ixgbevf/defines.h b/drivers/net/ethernet/intel/ixgbevf/defines.h index 770e21a..af28ef3 100644 --- a/drivers/net/ethernet/intel/ixgbevf/defines.h +++ b/drivers/net/ethernet/intel/ixgbevf/defines.h @@ -161,6 +161,18 @@ typedef u32 ixgbe_link_speed; #define IXGBE_RXDADV_SPLITHEADER_EN 0x00001000 #define IXGBE_RXDADV_SPH 0x8000 +/* RSS Hash results */ +#define IXGBE_RXDADV_RSSTYPE_NONE 0x00000000 +#define IXGBE_RXDADV_RSSTYPE_IPV4_TCP 0x00000001 +#define IXGBE_RXDADV_RSSTYPE_IPV4 0x00000002 +#define IXGBE_RXDADV_RSSTYPE_IPV6_TCP 0x00000003 +#define IXGBE_RXDADV_RSSTYPE_IPV6_EX 0x00000004 +#define IXGBE_RXDADV_RSSTYPE_IPV6 0x00000005 +#define IXGBE_RXDADV_RSSTYPE_IPV6_TCP_EX 0x00000006 +#define IXGBE_RXDADV_RSSTYPE_IPV4_UDP 0x00000007 +#define IXGBE_RXDADV_RSSTYPE_IPV6_UDP 0x00000008 +#define IXGBE_RXDADV_RSSTYPE_IPV6_UDP_EX 0x00000009 + #define IXGBE_RXD_ERR_FRAME_ERR_MASK ( \ IXGBE_RXD_ERR_CE | \ IXGBE_RXD_ERR_LE | \ diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c index a16d267..2a4ae83 100644 --- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c +++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c @@ -457,6 +457,32 @@ static void ixgbevf_rx_skb(struct ixgbevf_q_vector *q_vector, napi_gro_receive(&q_vector->napi, skb); } +#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 ixgbevf_rx_hash(struct ixgbevf_ring *ring, + union ixgbe_adv_rx_desc *rx_desc, + struct sk_buff *skb) +{ + 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); +} + /** * ixgbevf_rx_checksum - indicate in skb if hw indicated a good cksum * @ring: structure containig ring specific data @@ -506,6 +532,7 @@ static void ixgbevf_process_skb_fields(struct ixgbevf_ring *rx_ring, union ixgbe_adv_rx_desc *rx_desc, struct sk_buff *skb) { + ixgbevf_rx_hash(rx_ring, rx_desc, skb); ixgbevf_rx_checksum(rx_ring, rx_desc, skb); if (ixgbevf_test_staterr(rx_desc, IXGBE_RXD_STAT_VP)) {