From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wei Dai Subject: [PATCH 2/2] net/i40e: fix Rx queue interrupt mapping in VF Date: Thu, 2 Nov 2017 21:10:56 +0800 Message-ID: <1509628256-16300-3-git-send-email-wei.dai@intel.com> References: <1509628256-16300-1-git-send-email-wei.dai@intel.com> Cc: dev@dpdk.org, Wei Dai , stable@dpdk.org To: jingjing.wu@intel.com, beilei.xing@intel.com, cunming.liang@intel.com Return-path: In-Reply-To: <1509628256-16300-1-git-send-email-wei.dai@intel.com> List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" 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