From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by dpdk.org (Postfix) with ESMTP id 1CFF98E72 for ; Thu, 24 Sep 2015 07:34:07 +0200 (CEST) Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga103.fm.intel.com with ESMTP; 23 Sep 2015 22:34:06 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.17,579,1437462000"; d="scan'208";a="651259117" Received: from shvmail01.sh.intel.com ([10.239.29.42]) by orsmga003.jf.intel.com with ESMTP; 23 Sep 2015 22:34:06 -0700 Received: from shecgisg004.sh.intel.com (shecgisg004.sh.intel.com [10.239.29.89]) by shvmail01.sh.intel.com with ESMTP id t8O5Y3IP027387; Thu, 24 Sep 2015 13:34:03 +0800 Received: from shecgisg004.sh.intel.com (localhost [127.0.0.1]) by shecgisg004.sh.intel.com (8.13.6/8.13.6/SuSE Linux 0.8) with ESMTP id t8O5Y0LK019129; Thu, 24 Sep 2015 13:34:02 +0800 Received: (from cliang18@localhost) by shecgisg004.sh.intel.com (8.13.6/8.13.6/Submit) id t8O5XxWY019125; Thu, 24 Sep 2015 13:33:59 +0800 From: Cunming Liang To: dev@dpdk.org Date: Thu, 24 Sep 2015 13:33:42 +0800 Message-Id: <1443072831-19065-3-git-send-email-cunming.liang@intel.com> X-Mailer: git-send-email 1.7.4.1 In-Reply-To: <1443072831-19065-1-git-send-email-cunming.liang@intel.com> References: <1443072831-19065-1-git-send-email-cunming.liang@intel.com> Subject: [dpdk-dev] [PATCH v1 02/11] ixgbe: reserve intr vector zero for misc cause X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 24 Sep 2015 05:34:08 -0000 According to the VFIO interrupt mapping, the interrupt vector id for rxq starts from RX_VEC_START. It doesn't impact the UIO cases. Signed-off-by: Cunming Liang --- drivers/net/ixgbe/ixgbe_ethdev.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c index ec2918c..dbc0cd4 100644 --- a/drivers/net/ixgbe/ixgbe_ethdev.c +++ b/drivers/net/ixgbe/ixgbe_ethdev.c @@ -4249,7 +4249,8 @@ ixgbe_configure_msix(struct rte_eth_dev *dev) struct rte_intr_handle *intr_handle = &dev->pci_dev->intr_handle; struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private); - uint32_t queue_id, vec = 0; + uint32_t queue_id, base = MISC_VEC_ID; + uint32_t vec = MISC_VEC_ID; uint32_t mask; uint32_t gpie; @@ -4259,6 +4260,9 @@ ixgbe_configure_msix(struct rte_eth_dev *dev) if (!rte_intr_dp_is_en(intr_handle)) return; + if (rte_intr_allow_others(intr_handle)) + vec = base = RX_VEC_START; + /* setup GPIE for MSI-x mode */ gpie = IXGBE_READ_REG(hw, IXGBE_GPIE); gpie |= IXGBE_GPIE_MSIX_MODE | IXGBE_GPIE_PBA_SUPPORT | @@ -4282,23 +4286,23 @@ ixgbe_configure_msix(struct rte_eth_dev *dev) /* by default, 1:1 mapping */ ixgbe_set_ivar_map(hw, 0, queue_id, vec); intr_handle->intr_vec[queue_id] = vec; - if (vec < intr_handle->nb_efd - 1) + if (vec < base + intr_handle->nb_efd - 1) vec++; } switch (hw->mac.type) { case ixgbe_mac_82598EB: ixgbe_set_ivar_map(hw, -1, IXGBE_IVAR_OTHER_CAUSES_INDEX, - intr_handle->max_intr - 1); + MISC_VEC_ID); break; case ixgbe_mac_82599EB: case ixgbe_mac_X540: - ixgbe_set_ivar_map(hw, -1, 1, intr_handle->max_intr - 1); + ixgbe_set_ivar_map(hw, -1, 1, MISC_VEC_ID); break; default: break; } - IXGBE_WRITE_REG(hw, IXGBE_EITR(queue_id), + IXGBE_WRITE_REG(hw, IXGBE_EITR(MISC_VEC_ID), IXGBE_MIN_INTER_INTERRUPT_INTERVAL_DEFAULT & 0xFFF); /* set up to autoclear timer, and the vectors */ -- 2.4.3