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 79751A034C; Mon, 24 Oct 2022 15:15:45 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 3FAE042BE7; Mon, 24 Oct 2022 15:14:42 +0200 (CEST) Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by mails.dpdk.org (Postfix) with ESMTP id F21D342BDD for ; Mon, 24 Oct 2022 15:14:35 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1666617276; x=1698153276; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=vG3DmFug8s+uhQ8uVcgc48/m70hm3zp4ngjpeTPNAjc=; b=KAivEoSyZL/LbShhJ0rM+Pmh1R7fYZuWtI/ssPGQ1CLDCg/bz/P3OVaF LE9sAtdCHl6eV29cvqqUCpmVj8/GX2MJPBAgrkNv9rL5sR1nAg0BLYL3v sQ1lEL+VnbKj4ldekm986KhR8bTxmUWasb540idN88uH0TbHwO7fpxebu mD/s5Avisz+Rjq0RnbCP8Z207RA9LFUp0h43+D4DHXAypTlQeRpxlUG7m lcoRzcmoIkH8lLrrGoG4DCjWQ5FXuAv+KRqPdCnqbh0XhaVFITq8yVwvt vJoazQcHWvju0YRyJn2MIDpFoYYVFxyqtYV2SQKi1AJAQWkipsqnfpGHa A==; X-IronPort-AV: E=McAfee;i="6500,9779,10510"; a="309100064" X-IronPort-AV: E=Sophos;i="5.95,209,1661842800"; d="scan'208";a="309100064" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Oct 2022 06:14:35 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10510"; a="664540069" X-IronPort-AV: E=Sophos;i="5.95,209,1661842800"; d="scan'208";a="664540069" Received: from dpdk-jf-ntb-one.sh.intel.com ([10.67.111.104]) by orsmga001.jf.intel.com with ESMTP; 24 Oct 2022 06:14:33 -0700 From: Junfeng Guo To: andrew.rybchenko@oktetlabs.ru, qi.z.zhang@intel.com, jingjing.wu@intel.com, beilei.xing@intel.com Cc: dev@dpdk.org, Junfeng Guo Subject: [PATCH v11 13/18] net/idpf: add support for write back based on ITR expire Date: Mon, 24 Oct 2022 21:12:22 +0800 Message-Id: <20221024131227.1062446-14-junfeng.guo@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20221024131227.1062446-1-junfeng.guo@intel.com> References: <20221024130134.1046536-2-junfeng.guo@intel.com> <20221024131227.1062446-1-junfeng.guo@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 Enable write back on ITR expire, then packets can be received one by one. Signed-off-by: Beilei Xing Signed-off-by: Junfeng Guo --- drivers/net/idpf/idpf_ethdev.c | 116 +++++++++++++++++++++++++++++++++ drivers/net/idpf/idpf_ethdev.h | 13 ++++ drivers/net/idpf/idpf_vchnl.c | 111 +++++++++++++++++++++++++++++++ 3 files changed, 240 insertions(+) diff --git a/drivers/net/idpf/idpf_ethdev.c b/drivers/net/idpf/idpf_ethdev.c index d3ac269419..57e4bf0d67 100644 --- a/drivers/net/idpf/idpf_ethdev.c +++ b/drivers/net/idpf/idpf_ethdev.c @@ -280,6 +280,90 @@ idpf_dev_configure(struct rte_eth_dev *dev) return 0; } +static int +idpf_config_rx_queues_irqs(struct rte_eth_dev *dev) +{ + struct idpf_vport *vport = dev->data->dev_private; + struct idpf_adapter *adapter = vport->adapter; + struct virtchnl2_queue_vector *qv_map; + struct idpf_hw *hw = &adapter->hw; + uint32_t dynctl_reg_start; + uint32_t itrn_reg_start; + uint32_t dynctl_val, itrn_val; + uint16_t i; + + qv_map = rte_zmalloc("qv_map", + dev->data->nb_rx_queues * + sizeof(struct virtchnl2_queue_vector), 0); + if (qv_map == NULL) { + PMD_DRV_LOG(ERR, "Failed to allocate %d queue-vector map", + dev->data->nb_rx_queues); + goto qv_map_alloc_err; + } + + /* Rx interrupt disabled, Map interrupt only for writeback */ + + /* The capability flags adapter->caps->other_caps here should be + * compared with bit VIRTCHNL2_CAP_WB_ON_ITR. The if condition should + * be updated when the FW can return correct flag bits. + */ + if (adapter->caps->other_caps != 0) { + dynctl_reg_start = + vport->recv_vectors->vchunks.vchunks->dynctl_reg_start; + itrn_reg_start = + vport->recv_vectors->vchunks.vchunks->itrn_reg_start; + dynctl_val = IDPF_READ_REG(hw, dynctl_reg_start); + PMD_DRV_LOG(DEBUG, "Value of dynctl_reg_start is 0x%x", + dynctl_val); + itrn_val = IDPF_READ_REG(hw, itrn_reg_start); + PMD_DRV_LOG(DEBUG, "Value of itrn_reg_start is 0x%x", itrn_val); + /* Force write-backs by setting WB_ON_ITR bit in DYN_CTL + * register. WB_ON_ITR and INTENA are mutually exclusive + * bits. Setting WB_ON_ITR bits means TX and RX Descs + * are written back based on ITR expiration irrespective + * of INTENA setting. + */ + /* TBD: need to tune INTERVAL value for better performance. */ + if (itrn_val != 0) + IDPF_WRITE_REG(hw, + dynctl_reg_start, + VIRTCHNL2_ITR_IDX_0 << + PF_GLINT_DYN_CTL_ITR_INDX_S | + PF_GLINT_DYN_CTL_WB_ON_ITR_M | + itrn_val << + PF_GLINT_DYN_CTL_INTERVAL_S); + else + IDPF_WRITE_REG(hw, + dynctl_reg_start, + VIRTCHNL2_ITR_IDX_0 << + PF_GLINT_DYN_CTL_ITR_INDX_S | + PF_GLINT_DYN_CTL_WB_ON_ITR_M | + IDPF_DFLT_INTERVAL << + PF_GLINT_DYN_CTL_INTERVAL_S); + } + for (i = 0; i < dev->data->nb_rx_queues; i++) { + /* map all queues to the same vector */ + qv_map[i].queue_id = vport->chunks_info.rx_start_qid + i; + qv_map[i].vector_id = + vport->recv_vectors->vchunks.vchunks->start_vector_id; + } + vport->qv_map = qv_map; + + if (idpf_vc_config_irq_map_unmap(vport, true) != 0) { + PMD_DRV_LOG(ERR, "config interrupt mapping failed"); + goto config_irq_map_err; + } + + return 0; + +config_irq_map_err: + rte_free(vport->qv_map); + vport->qv_map = NULL; + +qv_map_alloc_err: + return -1; +} + static int idpf_start_queues(struct rte_eth_dev *dev) { @@ -317,6 +401,10 @@ static int idpf_dev_start(struct rte_eth_dev *dev) { struct idpf_vport *vport = dev->data->dev_private; + struct idpf_adapter *adapter = vport->adapter; + uint16_t num_allocated_vectors = + adapter->caps->num_allocated_vectors; + uint16_t req_vecs_num; if (dev->data->mtu > vport->max_mtu) { PMD_DRV_LOG(ERR, "MTU should be less than %d", vport->max_mtu); @@ -325,6 +413,23 @@ idpf_dev_start(struct rte_eth_dev *dev) vport->max_pkt_len = dev->data->mtu + IDPF_ETH_OVERHEAD; + req_vecs_num = IDPF_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); + goto err_mtu; + } + if (idpf_vc_alloc_vectors(vport, req_vecs_num) != 0) { + PMD_DRV_LOG(ERR, "Failed to allocate interrupt vectors"); + goto err_mtu; + } + adapter->used_vecs_num += req_vecs_num; + + if (idpf_config_rx_queues_irqs(dev) != 0) { + PMD_DRV_LOG(ERR, "Failed to configure irqs"); + goto err_mtu; + } + if (idpf_start_queues(dev) != 0) { PMD_DRV_LOG(ERR, "Failed to start queues"); goto err_mtu; @@ -354,6 +459,10 @@ idpf_dev_stop(struct rte_eth_dev *dev) idpf_stop_queues(dev); + idpf_vc_config_irq_map_unmap(vport, false); + + idpf_vc_dealloc_vectors(vport); + return 0; } @@ -365,6 +474,11 @@ idpf_dev_close(struct rte_eth_dev *dev) idpf_vc_destroy_vport(vport); + rte_free(vport->recv_vectors); + vport->recv_vectors = NULL; + + rte_free(vport->qv_map); + vport->qv_map = NULL; adapter->cur_vports &= ~RTE_BIT32(vport->devarg_id); @@ -717,6 +831,8 @@ idpf_adapter_init(struct rte_pci_device *pci_dev, struct idpf_adapter *adapter) adapter->cur_vports = 0; adapter->cur_vport_nb = 0; + adapter->used_vecs_num = 0; + return ret; err_vports: diff --git a/drivers/net/idpf/idpf_ethdev.h b/drivers/net/idpf/idpf_ethdev.h index 238c641c3f..d89a06d239 100644 --- a/drivers/net/idpf/idpf_ethdev.h +++ b/drivers/net/idpf/idpf_ethdev.h @@ -42,6 +42,9 @@ #define IDPF_CTLQ_LEN 64 #define IDPF_DFLT_MBX_BUF_SIZE 4096 +#define IDPF_DFLT_Q_VEC_NUM 1 +#define IDPF_DFLT_INTERVAL 16 + #define IDPF_MIN_BUF_SIZE 1024 #define IDPF_MAX_FRAME_SIZE 9728 #define IDPF_MIN_FRAME_SIZE 14 @@ -105,6 +108,11 @@ struct idpf_vport { struct rte_eth_dev_data *dev_data; /* Pointer to the device data */ uint16_t max_pkt_len; /* Maximum packet length */ + /* MSIX info*/ + struct virtchnl2_queue_vector *qv_map; /* queue vector mapping */ + uint16_t max_vectors; + struct virtchnl2_alloc_vectors *recv_vectors; + /* Chunk info */ struct idpf_chunks_info chunks_info; @@ -140,6 +148,8 @@ struct idpf_adapter { uint16_t cur_vport_nb; uint16_t cur_vport_idx; + uint16_t used_vecs_num; + /* Max config queue number per VC message */ uint32_t max_rxq_per_msg; uint32_t max_txq_per_msg; @@ -219,6 +229,9 @@ int idpf_switch_queue(struct idpf_vport *vport, uint16_t qid, bool rx, bool on); int idpf_vc_ena_dis_queues(struct idpf_vport *vport, bool enable); int idpf_vc_ena_dis_vport(struct idpf_vport *vport, bool enable); +int idpf_vc_config_irq_map_unmap(struct idpf_vport *vport, bool map); +int idpf_vc_alloc_vectors(struct idpf_vport *vport, uint16_t num_vectors); +int idpf_vc_dealloc_vectors(struct idpf_vport *vport); int idpf_vc_query_ptype_info(struct idpf_adapter *adapter); int idpf_read_one_msg(struct idpf_adapter *adapter, uint32_t ops, uint16_t buf_len, uint8_t *buf); diff --git a/drivers/net/idpf/idpf_vchnl.c b/drivers/net/idpf/idpf_vchnl.c index 86a55d2ff1..34369cfc96 100644 --- a/drivers/net/idpf/idpf_vchnl.c +++ b/drivers/net/idpf/idpf_vchnl.c @@ -234,6 +234,10 @@ idpf_execute_vc_cmd(struct idpf_adapter *adapter, struct idpf_cmd_info *args) case VIRTCHNL2_OP_DISABLE_QUEUES: case VIRTCHNL2_OP_ENABLE_VPORT: case VIRTCHNL2_OP_DISABLE_VPORT: + case VIRTCHNL2_OP_MAP_QUEUE_VECTOR: + case VIRTCHNL2_OP_UNMAP_QUEUE_VECTOR: + case VIRTCHNL2_OP_ALLOC_VECTORS: + case VIRTCHNL2_OP_DEALLOC_VECTORS: /* for init virtchnl ops, need to poll the response */ err = idpf_read_one_msg(adapter, args->ops, args->out_size, args->out_buffer); clear_cmd(adapter); @@ -1024,6 +1028,113 @@ idpf_vc_config_txq(struct idpf_vport *vport, uint16_t txq_id) return err; } +int +idpf_vc_config_irq_map_unmap(struct idpf_vport *vport, bool map) +{ + struct idpf_adapter *adapter = vport->adapter; + struct virtchnl2_queue_vector_maps *map_info; + struct virtchnl2_queue_vector *vecmap; + uint16_t nb_rxq = vport->dev_data->nb_rx_queues; + struct idpf_cmd_info args; + int len, i, err = 0; + + len = sizeof(struct virtchnl2_queue_vector_maps) + + (nb_rxq - 1) * sizeof(struct virtchnl2_queue_vector); + + map_info = rte_zmalloc("map_info", len, 0); + if (map_info == NULL) + return -ENOMEM; + + map_info->vport_id = vport->vport_id; + map_info->num_qv_maps = nb_rxq; + for (i = 0; i < nb_rxq; i++) { + vecmap = &map_info->qv_maps[i]; + vecmap->queue_id = vport->qv_map[i].queue_id; + vecmap->vector_id = vport->qv_map[i].vector_id; + vecmap->itr_idx = VIRTCHNL2_ITR_IDX_0; + vecmap->queue_type = VIRTCHNL2_QUEUE_TYPE_RX; + } + + args.ops = map ? VIRTCHNL2_OP_MAP_QUEUE_VECTOR : + VIRTCHNL2_OP_UNMAP_QUEUE_VECTOR; + args.in_args = (u8 *)map_info; + args.in_args_size = len; + args.out_buffer = adapter->mbx_resp; + args.out_size = IDPF_DFLT_MBX_BUF_SIZE; + err = idpf_execute_vc_cmd(adapter, &args); + if (err != 0) + PMD_DRV_LOG(ERR, "Failed to execute command of VIRTCHNL2_OP_%s_QUEUE_VECTOR", + map ? "MAP" : "UNMAP"); + + rte_free(map_info); + return err; +} + +int +idpf_vc_alloc_vectors(struct idpf_vport *vport, uint16_t num_vectors) +{ + struct idpf_adapter *adapter = vport->adapter; + struct virtchnl2_alloc_vectors *alloc_vec; + struct idpf_cmd_info args; + int err, len; + + len = sizeof(struct virtchnl2_alloc_vectors) + + (num_vectors - 1) * sizeof(struct virtchnl2_vector_chunk); + alloc_vec = rte_zmalloc("alloc_vec", len, 0); + if (alloc_vec == NULL) + return -ENOMEM; + + alloc_vec->num_vectors = num_vectors; + + args.ops = VIRTCHNL2_OP_ALLOC_VECTORS; + args.in_args = (u8 *)alloc_vec; + args.in_args_size = sizeof(struct virtchnl2_alloc_vectors); + args.out_buffer = adapter->mbx_resp; + args.out_size = IDPF_DFLT_MBX_BUF_SIZE; + err = idpf_execute_vc_cmd(adapter, &args); + if (err != 0) + PMD_DRV_LOG(ERR, "Failed to execute command VIRTCHNL2_OP_ALLOC_VECTORS"); + + if (vport->recv_vectors == NULL) { + vport->recv_vectors = rte_zmalloc("recv_vectors", len, 0); + if (vport->recv_vectors == NULL) { + rte_free(alloc_vec); + return -ENOMEM; + } + } + + rte_memcpy(vport->recv_vectors, args.out_buffer, len); + rte_free(alloc_vec); + return err; +} + +int +idpf_vc_dealloc_vectors(struct idpf_vport *vport) +{ + struct idpf_adapter *adapter = vport->adapter; + struct virtchnl2_alloc_vectors *alloc_vec; + struct virtchnl2_vector_chunks *vcs; + struct idpf_cmd_info args; + int err, len; + + alloc_vec = vport->recv_vectors; + vcs = &alloc_vec->vchunks; + + len = sizeof(struct virtchnl2_vector_chunks) + + (vcs->num_vchunks - 1) * sizeof(struct virtchnl2_vector_chunk); + + args.ops = VIRTCHNL2_OP_DEALLOC_VECTORS; + args.in_args = (u8 *)vcs; + args.in_args_size = len; + args.out_buffer = adapter->mbx_resp; + args.out_size = IDPF_DFLT_MBX_BUF_SIZE; + err = idpf_execute_vc_cmd(adapter, &args); + if (err != 0) + PMD_DRV_LOG(ERR, "Failed to execute command VIRTCHNL2_OP_DEALLOC_VECTORS"); + + return err; +} + static int idpf_vc_ena_dis_one_queue(struct idpf_vport *vport, uint16_t qid, uint32_t type, bool on) -- 2.34.1