From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vlad Zolotarov Subject: [RFC PATCH net-next 3/5] ixgbe: Add GET_RSS_KEY command to VF-PF channel commands set Date: Tue, 30 Dec 2014 18:30:33 +0200 Message-ID: <1419957035-1078-4-git-send-email-vladz@cloudius-systems.com> References: <1419957035-1078-1-git-send-email-vladz@cloudius-systems.com> Cc: gleb@cloudius-systems.com, avi@cloudius-systems.com, Vlad Zolotarov To: netdev@vger.kernel.org Return-path: Received: from mail-wi0-f177.google.com ([209.85.212.177]:42266 "EHLO mail-wi0-f177.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750833AbaL3QhX (ORCPT ); Tue, 30 Dec 2014 11:37:23 -0500 Received: by mail-wi0-f177.google.com with SMTP id l15so24359259wiw.4 for ; Tue, 30 Dec 2014 08:37:22 -0800 (PST) In-Reply-To: <1419957035-1078-1-git-send-email-vladz@cloudius-systems.com> Sender: netdev-owner@vger.kernel.org List-ID: 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 --- drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.h | 2 ++ drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c | 25 +++++++++++++++++++++++++ 2 files changed, 27 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 84db1a5..fc8233e 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c @@ -970,6 +970,28 @@ 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 */ + switch (adapter->vfinfo[vf].vf_api) { + case ixgbe_mbox_api_12: + break; + default: + 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; @@ -1035,6 +1057,9 @@ 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; -- 2.1.0