From patchwork Wed May 26 09:27:41 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Huazhong Tan X-Patchwork-Id: 448743 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CB0D1C47089 for ; Wed, 26 May 2021 09:28:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AB59D613D8 for ; Wed, 26 May 2021 09:28:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233429AbhEZJ3d (ORCPT ); Wed, 26 May 2021 05:29:33 -0400 Received: from szxga05-in.huawei.com ([45.249.212.191]:5556 "EHLO szxga05-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233309AbhEZJ31 (ORCPT ); Wed, 26 May 2021 05:29:27 -0400 Received: from dggems705-chm.china.huawei.com (unknown [172.30.72.58]) by szxga05-in.huawei.com (SkyGuard) with ESMTP id 4FqlsW03PvzkZSs; Wed, 26 May 2021 17:25:03 +0800 (CST) Received: from dggpemm500006.china.huawei.com (7.185.36.236) by dggems705-chm.china.huawei.com (10.3.19.182) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2176.2; Wed, 26 May 2021 17:27:54 +0800 Received: from localhost.localdomain (10.69.192.56) by dggpemm500006.china.huawei.com (7.185.36.236) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2176.2; Wed, 26 May 2021 17:27:54 +0800 From: Huazhong Tan To: , CC: , , , , , , , , , , , , , , , , , , , , , , , , , Subject: [RFC net-next 3/4] net: hns3: add support for EQE/CQE mode configuration Date: Wed, 26 May 2021 17:27:41 +0800 Message-ID: <1622021262-8881-4-git-send-email-tanhuazhong@huawei.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1622021262-8881-1-git-send-email-tanhuazhong@huawei.com> References: <1622021262-8881-1-git-send-email-tanhuazhong@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.69.192.56] X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) To dggpemm500006.china.huawei.com (7.185.36.236) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org For device whose version is above V3(include V3), the GL can select EQE or CQE mode, so adds support for it. In CQE mode, the coalesced timer will restart when the first new completion occurs, while in EQE mode, the timer will not restart. Signed-off-by: Huazhong Tan --- drivers/net/ethernet/hisilicon/hns3/hnae3.h | 1 + drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 49 +++++++++++++++++++++- drivers/net/ethernet/hisilicon/hns3/hns3_enet.h | 8 ++++ .../ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 1 + .../ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c | 1 + 5 files changed, 58 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.h b/drivers/net/ethernet/hisilicon/hns3/hnae3.h index 57fa7fc..46a52db 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hnae3.h +++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.h @@ -754,6 +754,7 @@ struct hnae3_knic_private_info { u16 int_rl_setting; enum pkt_hash_types rss_type; + void __iomem *io_base; }; struct hnae3_roce_private_info { diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c index a9a813a..3399f26 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c @@ -4014,9 +4014,7 @@ static void hns3_tx_dim_work(struct work_struct *work) static void hns3_nic_init_dim(struct hns3_enet_tqp_vector *tqp_vector) { INIT_WORK(&tqp_vector->rx_group.dim.work, hns3_rx_dim_work); - tqp_vector->rx_group.dim.mode = DIM_CQ_PERIOD_MODE_START_FROM_EQE; INIT_WORK(&tqp_vector->tx_group.dim.work, hns3_tx_dim_work); - tqp_vector->tx_group.dim.mode = DIM_CQ_PERIOD_MODE_START_FROM_EQE; } static int hns3_nic_init_vector_data(struct hns3_nic_priv *priv) @@ -4521,6 +4519,48 @@ static void hns3_info_show(struct hns3_nic_priv *priv) dev_info(priv->dev, "Max mtu size: %u\n", priv->netdev->max_mtu); } +static void hns3_set_cq_period_mode(struct hns3_nic_priv *priv, + enum dim_cq_period_mode mode, bool is_tx) +{ + struct hnae3_ae_dev *ae_dev = pci_get_drvdata(priv->ae_handle->pdev); + struct hnae3_handle *handle = priv->ae_handle; + int i; + + if (is_tx) { + priv->tx_cqe_mode = mode; + + for (i = 0; i < priv->vector_num; i++) + priv->tqp_vector[i].tx_group.dim.mode = mode; + } else { + priv->rx_cqe_mode = mode; + + for (i = 0; i < priv->vector_num; i++) + priv->tqp_vector[i].rx_group.dim.mode = mode; + } + + /* only device version above V3(include V3), GL can switch CQ/EQ + * period mode. + */ + if (ae_dev->dev_version >= HNAE3_DEVICE_VERSION_V3) { + u32 new_mode; + u64 reg; + + new_mode = (mode == DIM_CQ_PERIOD_MODE_START_FROM_CQE) ? + HNS3_CQ_MODE_CQE : HNS3_CQ_MODE_EQE; + reg = is_tx ? HNS3_GL1_CQ_MODE_REG : HNS3_GL0_CQ_MODE_REG; + + writel(new_mode, handle->kinfo.io_base + reg); + } +} + +static void hns3_cq_period_mode_init(struct hns3_nic_priv *priv, + enum dim_cq_period_mode tx_mode, + enum dim_cq_period_mode rx_mode) +{ + hns3_set_cq_period_mode(priv, tx_mode, true); + hns3_set_cq_period_mode(priv, rx_mode, false); +} + static int hns3_client_init(struct hnae3_handle *handle) { struct pci_dev *pdev = handle->pdev; @@ -4588,6 +4628,9 @@ static int hns3_client_init(struct hnae3_handle *handle) goto out_init_ring; } + hns3_cq_period_mode_init(priv, DIM_CQ_PERIOD_MODE_START_FROM_EQE, + DIM_CQ_PERIOD_MODE_START_FROM_EQE); + ret = hns3_init_phy(netdev); if (ret) goto out_init_phy; @@ -4920,6 +4963,8 @@ static int hns3_reset_notify_init_enet(struct hnae3_handle *handle) if (ret) goto err_uninit_vector; + hns3_cq_period_mode_init(priv, priv->tx_cqe_mode, priv->rx_cqe_mode); + /* the device can work without cpu rmap, only aRFS needs it */ ret = hns3_set_rx_cpu_rmap(netdev); if (ret) diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h index b038441..8445596 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h @@ -200,6 +200,12 @@ enum hns3_nic_state { #define HNS3_RING_EN_B 0 +#define HNS3_GL0_CQ_MODE_REG 0x20d00 +#define HNS3_GL1_CQ_MODE_REG 0x20d04 +#define HNS3_GL2_CQ_MODE_REG 0x20d08 +#define HNS3_CQ_MODE_EQE 1U +#define HNS3_CQ_MODE_CQE 0U + enum hns3_pkt_l2t_type { HNS3_L2_TYPE_UNICAST, HNS3_L2_TYPE_MULTICAST, @@ -526,6 +532,8 @@ struct hns3_nic_priv { unsigned long state; + enum dim_cq_period_mode tx_cqe_mode; + enum dim_cq_period_mode rx_cqe_mode; struct hns3_enet_coalesce tx_coal; struct hns3_enet_coalesce rx_coal; }; diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c index 6addeb2..549a12c 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c @@ -1794,6 +1794,7 @@ static int hclge_vport_setup(struct hclge_vport *vport, u16 num_tqps) nic->pdev = hdev->pdev; nic->ae_algo = &ae_algo; nic->numa_node_mask = hdev->numa_node_mask; + nic->kinfo.io_base = hdev->hw.io_base; ret = hclge_knic_setup(vport, num_tqps, hdev->num_tx_desc, hdev->num_rx_desc); diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c index 7bef6b2..4b9460a 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c @@ -530,6 +530,7 @@ static int hclgevf_set_handle_info(struct hclgevf_dev *hdev) nic->pdev = hdev->pdev; nic->numa_node_mask = hdev->numa_node_mask; nic->flags |= HNAE3_SUPPORT_VF; + nic->kinfo.io_base = hdev->hw.io_base; ret = hclgevf_knic_setup(hdev); if (ret)