From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id B2C9C41DB5; Thu, 2 Mar 2023 14:07:24 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 66C0842D4E; Thu, 2 Mar 2023 14:06:24 +0100 (CET) Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by mails.dpdk.org (Postfix) with ESMTP id A086642D3F for ; Thu, 2 Mar 2023 14:06:22 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1677762382; x=1709298382; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=UQA6XK7bnikXi6staD7Wc1Wgrh56bXc9g6uNXYgkw6s=; b=ZWOfn/Csa3wPG7RM+N1QzTgNeTuZIsVdzHvHGEgvltq09GDdxrTr1iSE dw7YoeDlZlseXUrlreUkYTnlpBSxgGDSYskJ4tzvGrvmCVkrrR5FMIL8J oZHkUDrlc7mc7aJR3KYt9jsbymoUom0X9TZ3DUhjNnQXyfakZbGFAsG+6 vPNcSPp5gx+nI67aWxIhVaXlV1Qab+wCsdEXyOyqEfCWTrC1Z6gFA/vtj 6lr0rtLEubFbg5inb6uEynTb3g3efNRwjSo3TeptiDbSeAbv1wVkFdRe0 QWcpA6nM+xhmnBz5wya+TiwFAg48kRrI+7Q3U2jh37Qd9ccbMRxV7Fxcx A==; X-IronPort-AV: E=McAfee;i="6500,9779,10636"; a="322988222" X-IronPort-AV: E=Sophos;i="5.98,227,1673942400"; d="scan'208";a="322988222" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Mar 2023 05:06:22 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10636"; a="707406415" X-IronPort-AV: E=Sophos;i="5.98,227,1673942400"; d="scan'208";a="707406415" Received: from dpdk-mingxial-ice.sh.intel.com ([10.67.110.191]) by orsmga001.jf.intel.com with ESMTP; 02 Mar 2023 05:06:20 -0800 From: Mingxia Liu To: dev@dpdk.org, beilei.xing@intel.com, yuying.zhang@intel.com Cc: Mingxia Liu Subject: [PATCH v9 11/21] net/cpfl: support write back based on ITR expire Date: Thu, 2 Mar 2023 21:20:47 +0000 Message-Id: <20230302212057.1114863-12-mingxia.liu@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230302212057.1114863-1-mingxia.liu@intel.com> References: <20230302103527.931071-1-mingxia.liu@intel.com> <20230302212057.1114863-1-mingxia.liu@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org ITR is the interval between two interrupts, it can be understood as a timer here. WB_ON_ITR(write back on ITR expire) is used for receiving packets without interrupts or full cache line, then packets can be received one by one. To enable WB_ON_ITR, need to enable some interrupt with 'idpf_vport_irq_map_config()' first. Signed-off-by: Mingxia Liu --- drivers/net/cpfl/cpfl_ethdev.c | 45 +++++++++++++++++++++++++++++++++- drivers/net/cpfl/cpfl_ethdev.h | 2 ++ 2 files changed, 46 insertions(+), 1 deletion(-) diff --git a/drivers/net/cpfl/cpfl_ethdev.c b/drivers/net/cpfl/cpfl_ethdev.c index c3a6104dac..ef40ae08df 100644 --- a/drivers/net/cpfl/cpfl_ethdev.c +++ b/drivers/net/cpfl/cpfl_ethdev.c @@ -209,6 +209,15 @@ cpfl_dev_configure(struct rte_eth_dev *dev) return 0; } +static int +cpfl_config_rx_queues_irqs(struct rte_eth_dev *dev) +{ + struct idpf_vport *vport = dev->data->dev_private; + uint16_t nb_rx_queues = dev->data->nb_rx_queues; + + return idpf_vport_irq_map_config(vport, nb_rx_queues); +} + static int cpfl_start_queues(struct rte_eth_dev *dev) { @@ -246,12 +255,37 @@ static int cpfl_dev_start(struct rte_eth_dev *dev) { struct idpf_vport *vport = dev->data->dev_private; + struct idpf_adapter *base = vport->adapter; + struct cpfl_adapter_ext *adapter = CPFL_ADAPTER_TO_EXT(base); + uint16_t num_allocated_vectors = base->caps.num_allocated_vectors; + uint16_t req_vecs_num; int ret; + req_vecs_num = CPFL_DFLT_Q_VEC_NUM; + if (req_vecs_num + adapter->used_vecs_num > num_allocated_vectors) { + PMD_DRV_LOG(ERR, "The accumulated request vectors' number should be less than %d", + num_allocated_vectors); + ret = -EINVAL; + goto err_vec; + } + + ret = idpf_vc_vectors_alloc(vport, req_vecs_num); + if (ret != 0) { + PMD_DRV_LOG(ERR, "Failed to allocate interrupt vectors"); + goto err_vec; + } + adapter->used_vecs_num += req_vecs_num; + + ret = cpfl_config_rx_queues_irqs(dev); + if (ret != 0) { + PMD_DRV_LOG(ERR, "Failed to configure irqs"); + goto err_irq; + } + ret = cpfl_start_queues(dev); if (ret != 0) { PMD_DRV_LOG(ERR, "Failed to start queues"); - return ret; + goto err_startq; } cpfl_set_rx_function(dev); @@ -269,6 +303,11 @@ cpfl_dev_start(struct rte_eth_dev *dev) err_vport: cpfl_stop_queues(dev); +err_startq: + idpf_vport_irq_unmap_config(vport, dev->data->nb_rx_queues); +err_irq: + idpf_vc_vectors_dealloc(vport); +err_vec: return ret; } @@ -284,6 +323,10 @@ cpfl_dev_stop(struct rte_eth_dev *dev) cpfl_stop_queues(dev); + idpf_vport_irq_unmap_config(vport, dev->data->nb_rx_queues); + + idpf_vc_vectors_dealloc(vport); + vport->stopped = 1; return 0; diff --git a/drivers/net/cpfl/cpfl_ethdev.h b/drivers/net/cpfl/cpfl_ethdev.h index 9738e89ca8..4d1441ae64 100644 --- a/drivers/net/cpfl/cpfl_ethdev.h +++ b/drivers/net/cpfl/cpfl_ethdev.h @@ -25,6 +25,8 @@ #define CPFL_INVALID_VPORT_IDX 0xffff +#define CPFL_DFLT_Q_VEC_NUM 1 + #define CPFL_MIN_BUF_SIZE 1024 #define CPFL_MAX_FRAME_SIZE 9728 #define CPFL_DEFAULT_MTU RTE_ETHER_MTU -- 2.34.1