From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by dpdk.org (Postfix) with ESMTP id 9AAEE29C7; Mon, 20 Nov 2017 04:36:14 +0100 (CET) Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga102.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 19 Nov 2017 19:36:13 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.44,424,1505804400"; d="scan'208";a="9678971" Received: from dpdk26.sh.intel.com ([10.67.110.152]) by orsmga002.jf.intel.com with ESMTP; 19 Nov 2017 19:36:12 -0800 From: Wenzhuo Lu To: dev@dpdk.org Cc: Wenzhuo Lu , stable@dpdk.org Date: Mon, 20 Nov 2017 11:37:45 +0800 Message-Id: <1511149065-15646-1-git-send-email-wenzhuo.lu@intel.com> X-Mailer: git-send-email 1.9.3 Subject: [dpdk-stable] [PATCH] net/ixgbe: fix VF RX hang X-BeenThere: stable@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches for DPDK stable branches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 20 Nov 2017 03:36:15 -0000 The datasheet says, if using MSI-X mode, the PBA support bit of the GPIE register must be set to 1. DPDK uses polling mode, we cannot hit this issue in the scenario DPDK PF + DPDK VF. If we use DPDK PF + kernel VF, as the kernel driver uses interrpt mode, VF may hit RX hang after running hours. Fixes: 00e30184daa0 ("ixgbe: add PF support") Cc: stable@dpdk.org Signed-off-by: Wenzhuo Lu --- drivers/net/ixgbe/ixgbe_pf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ixgbe/ixgbe_pf.c b/drivers/net/ixgbe/ixgbe_pf.c index 676e92c..0114694 100644 --- a/drivers/net/ixgbe/ixgbe_pf.c +++ b/drivers/net/ixgbe/ixgbe_pf.c @@ -273,7 +273,7 @@ int ixgbe_pf_host_configure(struct rte_eth_dev *eth_dev) gpie = IXGBE_READ_REG(hw, IXGBE_GPIE); gpie &= ~IXGBE_GPIE_VTMODE_MASK; - gpie |= IXGBE_GPIE_MSIX_MODE; + gpie |= IXGBE_GPIE_MSIX_MODE | IXGBE_GPIE_PBA_SUPPORT; switch (RTE_ETH_DEV_SRIOV(eth_dev).active) { case ETH_64_POOLS: -- 1.9.3