From patchwork Fri Dec 14 14:37:20 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Yan, Zhirun" X-Patchwork-Id: 48800 X-Patchwork-Delegate: qi.z.zhang@intel.com Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id F24ED1B6E2; Fri, 14 Dec 2018 08:00:36 +0100 (CET) Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by dpdk.org (Postfix) with ESMTP id B29FB1B6DA for ; Fri, 14 Dec 2018 08:00:34 +0100 (CET) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by fmsmga102.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 13 Dec 2018 23:00:34 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,351,1539673200"; d="scan'208";a="303762733" Received: from dpdk-server.sh.intel.com ([10.67.110.170]) by fmsmga005.fm.intel.com with ESMTP; 13 Dec 2018 23:00:33 -0800 From: Zhirun Yan To: dev@dpdk.org, qi.z.zhang@intel.com Cc: Zhirun Yan , Haiyue Wang Date: Fri, 14 Dec 2018 14:37:20 +0000 Message-Id: <20181214143720.34163-3-zhirun.yan@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20181214143720.34163-1-zhirun.yan@intel.com> References: <20181213140505.14578-1-zhirun.yan@intel.com> <20181214143720.34163-1-zhirun.yan@intel.com> Subject: [dpdk-dev] [PATCH v4 2/2] net/i40e: support PF respond VF request more queues X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" This patch respond the VIRTCHNL_OP_REQUEST_QUEUES msg from VF, and process to allocated more queues for the requested VF. If successful, PF will notify VF to reset. If unsuccessful, PF will send message to inform VF. Signed-off-by: Zhirun Yan Signed-off-by: Haiyue Wang --- drivers/net/i40e/i40e_pf.c | 65 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 65 insertions(+) diff --git a/drivers/net/i40e/i40e_pf.c b/drivers/net/i40e/i40e_pf.c index dd3962d38..da0e5d6c5 100644 --- a/drivers/net/i40e/i40e_pf.c +++ b/drivers/net/i40e/i40e_pf.c @@ -1218,6 +1218,66 @@ i40e_notify_vf_link_status(struct rte_eth_dev *dev, struct i40e_pf_vf *vf) I40E_SUCCESS, (uint8_t *)&event, sizeof(event)); } +/** + * i40e_vc_notify_vf_reset + * @vf: pointer to the VF structure + * + * indicate a pending reset to the given VF + **/ +static void +i40e_vc_notify_vf_reset(struct i40e_pf_vf *vf) +{ + struct i40e_hw *hw = I40E_PF_TO_HW(vf->pf); + struct virtchnl_pf_event pfe; + int abs_vf_id; + uint16_t vf_id = vf->vf_idx; + + abs_vf_id = vf_id + hw->func_caps.vf_base_id; + pfe.event = VIRTCHNL_EVENT_RESET_IMPENDING; + pfe.severity = PF_EVENT_SEVERITY_CERTAIN_DOOM; + i40e_aq_send_msg_to_vf(hw, abs_vf_id, VIRTCHNL_OP_EVENT, 0, (u8 *)&pfe, + sizeof(struct virtchnl_pf_event), NULL); +} + +static int +i40e_pf_host_process_cmd_request_queues(struct i40e_pf_vf *vf, uint8_t *msg) +{ + struct virtchnl_vf_res_request *vfres = + (struct virtchnl_vf_res_request *)msg; + struct i40e_pf *pf; + uint32_t req_pairs = vfres->num_queue_pairs; + uint32_t cur_pairs = vf->vsi->nb_used_qps; + + pf = vf->pf; + + if (req_pairs <= 0) { + PMD_DRV_LOG(ERR, "VF %d tried to request %d queues. Ignoring.\n", + vf->vf_idx, + I40E_MAX_QP_NUM_PER_VF); + } else if (req_pairs > I40E_MAX_QP_NUM_PER_VF) { + PMD_DRV_LOG(ERR, "VF %d tried to request more than %d queues.\n", + vf->vf_idx, + I40E_MAX_QP_NUM_PER_VF); + vfres->num_queue_pairs = I40E_MAX_QP_NUM_PER_VF; + } else if (req_pairs > cur_pairs + pf->qp_pool.num_free) { + PMD_DRV_LOG(ERR, "VF %d requested %d more queues, but noly %d left\n", + vf->vf_idx, + req_pairs - cur_pairs, + pf->qp_pool.num_free); + vfres->num_queue_pairs = pf->qp_pool.num_free + cur_pairs; + } else { + i40e_vc_notify_vf_reset(vf); + vf->vsi->nb_qps = req_pairs; + pf->vf_nb_qps = req_pairs; + i40e_pf_host_process_cmd_reset_vf(vf); + + return 0; + } + + return i40e_pf_host_send_msg_to_vf(vf, VIRTCHNL_OP_REQUEST_QUEUES, 0, + (u8 *)vfres, sizeof(*vfres)); +} + void i40e_pf_host_handle_vf_msg(struct rte_eth_dev *dev, uint16_t abs_vf_id, uint32_t opcode, @@ -1351,6 +1411,11 @@ i40e_pf_host_handle_vf_msg(struct rte_eth_dev *dev, PMD_DRV_LOG(INFO, "OP_CONFIG_RSS_KEY received"); i40e_pf_host_process_cmd_set_rss_key(vf, msg, msglen, b_op); break; + case VIRTCHNL_OP_REQUEST_QUEUES: + PMD_DRV_LOG(INFO, "OP_REQUEST_QUEUES received"); + i40e_pf_host_process_cmd_request_queues(vf, msg); + break; + /* Don't add command supported below, which will * return an error code. */