From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by dpdk.org (Postfix) with ESMTP id 228801B3B8; Thu, 2 Nov 2017 14:25:16 +0100 (CET) Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga101.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 02 Nov 2017 06:25:14 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.44,334,1505804400"; d="scan'208";a="1213344360" Received: from unknown (HELO dpdk6.bj.intel.com) ([172.16.182.87]) by fmsmga001.fm.intel.com with ESMTP; 02 Nov 2017 06:25:12 -0700 From: Wei Dai To: jingjing.wu@intel.com, beilei.xing@intel.com, cunming.liang@intel.com Cc: dev@dpdk.org, Wei Dai , stable@dpdk.org Date: Thu, 2 Nov 2017 21:10:56 +0800 Message-Id: <1509628256-16300-3-git-send-email-wei.dai@intel.com> X-Mailer: git-send-email 2.7.5 In-Reply-To: <1509628256-16300-1-git-send-email-wei.dai@intel.com> References: <1509628256-16300-1-git-send-email-wei.dai@intel.com> Subject: [dpdk-stable] [PATCH 2/2] net/i40e: fix Rx queue interrupt mapping in VF 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: Thu, 02 Nov 2017 13:25:17 -0000 When a VF port is bound to VFIO-PCI, miscellaneous interrupt is mapped to MSI-X vector 0 and Rx queues interrupt are mapped to other vectors in vfio_enable_msix( ). To simplify implementation, all VFIO-PCI bound i40e VF Rx queue interrupts can be mapped in vector 1. And as current igb_uio only support only one vector, i40e VF PMD should use vector 0 for igb_uio and vector 1 for VFIO-PCI. Without this patch, VF Rx queue interrupt is mapped to vector 0 in register settings and mapped to VFIO vector 1 in vfio_enable_msix( ), and then all Rx queue interrupts will be missed. Fixes: 4b90a3ff26c5 ("i40evf: support Rx interrupt") Fixes: 975ffea6f671 ("net/i40e: remove DPDK PF version specific code") Cc: stable@dpdk.org Signed-off-by: Wei Dai --- drivers/net/i40e/i40e_ethdev_vf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/i40e/i40e_ethdev_vf.c b/drivers/net/i40e/i40e_ethdev_vf.c index 567b7d0..94fb4b1 100644 --- a/drivers/net/i40e/i40e_ethdev_vf.c +++ b/drivers/net/i40e/i40e_ethdev_vf.c @@ -654,7 +654,7 @@ i40evf_config_irq_map(struct rte_eth_dev *dev) int i, err; if (rte_intr_allow_others(intr_handle)) - vector_id = I40EVF_VSI_DEFAULT_MSIX_INTR_LNX; + vector_id = I40EVF_VSI_DEFAULT_MSIX_INTR; else vector_id = I40E_MISC_VEC_ID; -- 2.7.5