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 32C818E72 for ; Thu, 24 Sep 2015 07:34:09 +0200 (CEST) Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga103.fm.intel.com with ESMTP; 23 Sep 2015 22:34:08 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.17,579,1437462000"; d="scan'208";a="796169435" Received: from shvmail01.sh.intel.com ([10.239.29.42]) by fmsmga001.fm.intel.com with ESMTP; 23 Sep 2015 22:34:08 -0700 Received: from shecgisg004.sh.intel.com (shecgisg004.sh.intel.com [10.239.29.89]) by shvmail01.sh.intel.com with ESMTP id t8O5Y6OI027391; Thu, 24 Sep 2015 13:34:06 +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 t8O5Y2RS019136; Thu, 24 Sep 2015 13:34:04 +0800 Received: (from cliang18@localhost) by shecgisg004.sh.intel.com (8.13.6/8.13.6/Submit) id t8O5Y21N019132; Thu, 24 Sep 2015 13:34:02 +0800 From: Cunming Liang To: dev@dpdk.org Date: Thu, 24 Sep 2015 13:33:43 +0800 Message-Id: <1443072831-19065-4-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 03/11] igb: 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 05:34:09 -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/e1000/igb_ethdev.c | 19 ++++++++++++++----- 1 file changed, 14 insertions(+), 5 deletions(-) diff --git a/drivers/net/e1000/igb_ethdev.c b/drivers/net/e1000/igb_ethdev.c index 848ef6e..03400f4 100644 --- a/drivers/net/e1000/igb_ethdev.c +++ b/drivers/net/e1000/igb_ethdev.c @@ -4210,7 +4210,10 @@ eth_igb_configure_msix_intr(struct rte_eth_dev *dev) uint32_t tmpval, regval, intr_mask; struct e1000_hw *hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private); - uint32_t vec = 0; + uint32_t vec = MISC_VEC_ID; + uint32_t base = MISC_VEC_ID; + uint32_t misc_shift = 0; + struct rte_intr_handle *intr_handle = &dev->pci_dev->intr_handle; /* won't configure msix register if no mapping is done @@ -4219,6 +4222,11 @@ eth_igb_configure_msix_intr(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; + misc_shift = 1; + } + /* set interrupt vector for other causes */ if (hw->mac.type == e1000_82575) { tmpval = E1000_READ_REG(hw, E1000_CTRL_EXT); @@ -4247,8 +4255,8 @@ eth_igb_configure_msix_intr(struct rte_eth_dev *dev) E1000_WRITE_REG(hw, E1000_GPIE, E1000_GPIE_MSIX_MODE | E1000_GPIE_PBA | E1000_GPIE_EIAME | E1000_GPIE_NSICR); - - intr_mask = (1 << intr_handle->max_intr) - 1; + intr_mask = RTE_LEN2MASK(intr_handle->nb_efd, uint32_t) << + misc_shift; regval = E1000_READ_REG(hw, E1000_EIAC); E1000_WRITE_REG(hw, E1000_EIAC, regval | intr_mask); @@ -4262,14 +4270,15 @@ eth_igb_configure_msix_intr(struct rte_eth_dev *dev) /* use EIAM to auto-mask when MSI-X interrupt * is asserted, this saves a register write for every interrupt */ - intr_mask = (1 << intr_handle->nb_efd) - 1; + intr_mask = RTE_LEN2MASK(intr_handle->nb_efd, uint32_t) << + misc_shift; regval = E1000_READ_REG(hw, E1000_EIAM); E1000_WRITE_REG(hw, E1000_EIAM, regval | intr_mask); for (queue_id = 0; queue_id < dev->data->nb_rx_queues; queue_id++) { eth_igb_assign_msix_vector(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++; } -- 2.4.3