From patchwork Wed Dec 31 17:40:37 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vlad Zolotarov X-Patchwork-Id: 424817 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id B1A3C14011E for ; Thu, 1 Jan 2015 04:41:12 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751618AbaLaRlC (ORCPT ); Wed, 31 Dec 2014 12:41:02 -0500 Received: from mail-we0-f170.google.com ([74.125.82.170]:65229 "EHLO mail-we0-f170.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751450AbaLaRk5 (ORCPT ); Wed, 31 Dec 2014 12:40:57 -0500 Received: by mail-we0-f170.google.com with SMTP id w61so2673133wes.15 for ; Wed, 31 Dec 2014 09:40:55 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=Gpy5KSK7Im4lSIchEJtnTBpd1gipiVw2glKZVoANqgU=; b=BZeyqYPdqJSUHVloC9GkfdJhDxYLUY6Sds1xWjh57NQG16l1b5Z8mciayVdHqSuqly D9HzESz5l4KKl+eR8yvqTuN5SvMoNQORSgkmKbT+TTBFRMF0Wydrr6xGfvzPj9GTswQI ZHFNWrKvo2zR2zlveSj1+96lHf6ttaDwoXkATSRSEg8rqfqTtnOVPHUejKutBgCUrqmc yTlDwhkb22ga7iIvy1kTZTwAbB8Gk4bdLxkiDiI8J6724V9uxoZ2RdKVGSmoVBk/Fg7Y iYqbnmNGnrWq3Ok8lEBZGzwPyXvcxQHnqnSut7cVr6zX24fEsArFP2hLbhHBrh4fmUJr MaMA== X-Gm-Message-State: ALoCoQlnImQKqWZVss9QfIZqBhWC/Scw9jxHwuSkzW3lHnC8KXgNrbr865r1RIzjYZk462kqkAU+ X-Received: by 10.180.74.212 with SMTP id w20mr118295691wiv.22.1420047655853; Wed, 31 Dec 2014 09:40:55 -0800 (PST) Received: from vladz-laptop.localdomain (bzq-79-179-97-80.red.bezeqint.net. [79.179.97.80]) by mx.google.com with ESMTPSA id a1sm9466522wjx.28.2014.12.31.09.40.54 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 31 Dec 2014 09:40:55 -0800 (PST) From: Vlad Zolotarov To: netdev@vger.kernel.org Cc: gleb@cloudius-systems.com, avi@cloudius-systems.com, jeffrey.t.kirsher@intel.com, Vlad Zolotarov Subject: [PATCH net-next v2 3/5] ixgbe: Add GET_RSS_KEY command to VF-PF channel commands set Date: Wed, 31 Dec 2014 19:40:37 +0200 Message-Id: <1420047639-10862-4-git-send-email-vladz@cloudius-systems.com> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1420047639-10862-1-git-send-email-vladz@cloudius-systems.com> References: <1420047639-10862-1-git-send-email-vladz@cloudius-systems.com> Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org 82599 VFs and PF share the same RSS Key. Therefore we will return the same RSS key for all VFs. Signed-off-by: Vlad Zolotarov --- New in v1 (compared to RFC): - Use "if-else" statement instead of a "switch-case" for a single option case (in ixgbe_get_vf_rss_key()). --- drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.h | 2 ++ drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c | 21 +++++++++++++++++++++ 2 files changed, 23 insertions(+) diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.h index c1123d9..52e775b 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.h +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.h @@ -97,6 +97,8 @@ enum ixgbe_pfvf_api_rev { #define IXGBE_VF_GET_RETA_1 0x0b /* get RETA[12..23] */ #define IXGBE_VF_GET_RETA_2 0x0c /* get RETA[24..31] */ +#define IXGBE_VF_GET_RSS_KEY 0x0d /* get RSS key */ + /* GET_QUEUES return data indices within the mailbox */ #define IXGBE_VF_TX_QUEUES 1 /* number of Tx queues supported */ #define IXGBE_VF_RX_QUEUES 2 /* number of Rx queues supported */ diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c index b1625c8..d79415e 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c @@ -966,6 +966,24 @@ static int ixgbe_get_vf_reta(struct ixgbe_adapter *adapter, return 0; } +static int ixgbe_get_vf_rss_key(struct ixgbe_adapter *adapter, + u32 *msgbuf, u32 vf) +{ + struct ixgbe_hw *hw = &adapter->hw; + int i; + u32 *rss_key = &msgbuf[1]; + + /* verify the PF is supporting the correct API */ + if (adapter->vfinfo[vf].vf_api != ixgbe_mbox_api_12) + return -EPERM; + + /* Read the RSS KEY */ + for (i = 0; i < 10; i++) + rss_key[i] = IXGBE_READ_REG(hw, IXGBE_RSSRK(i)); + + return 0; +} + static int ixgbe_rcv_msg_from_vf(struct ixgbe_adapter *adapter, u32 vf) { u32 mbx_size = IXGBE_VFMAILBOX_SIZE; @@ -1031,6 +1049,9 @@ static int ixgbe_rcv_msg_from_vf(struct ixgbe_adapter *adapter, u32 vf) case IXGBE_VF_GET_RETA_2: retval = ixgbe_get_vf_reta(adapter, msgbuf, vf, 24, 8); break; + case IXGBE_VF_GET_RSS_KEY: + retval = ixgbe_get_vf_rss_key(adapter, msgbuf, vf); + break; default: e_err(drv, "Unhandled Msg %8.8x\n", msgbuf[0]); retval = IXGBE_ERR_MBX;