From patchwork Thu Apr 8 03:40:04 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Huazhong Tan X-Patchwork-Id: 12189897 X-Patchwork-Delegate: kuba@kernel.org 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 A5ABCC433B4 for ; Thu, 8 Apr 2021 03:40:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 823AD611BD for ; Thu, 8 Apr 2021 03:40:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229652AbhDHDkL (ORCPT ); Wed, 7 Apr 2021 23:40:11 -0400 Received: from szxga05-in.huawei.com ([45.249.212.191]:16030 "EHLO szxga05-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229618AbhDHDkK (ORCPT ); Wed, 7 Apr 2021 23:40:10 -0400 Received: from DGGEMS413-HUB.china.huawei.com (unknown [172.30.72.59]) by szxga05-in.huawei.com (SkyGuard) with ESMTP id 4FG6QH6cTFzNtq3; Thu, 8 Apr 2021 11:37:11 +0800 (CST) Received: from localhost.localdomain (10.69.192.56) by DGGEMS413-HUB.china.huawei.com (10.3.19.213) with Microsoft SMTP Server id 14.3.498.0; Thu, 8 Apr 2021 11:39:48 +0800 From: Huazhong Tan To: , CC: , , , , , , Jiaran Zhang , Huazhong Tan Subject: [PATCH net-next 1/2] net: hns3: change flr_prepare/flr_done function names Date: Thu, 8 Apr 2021 11:40:04 +0800 Message-ID: <1617853205-32760-2-git-send-email-tanhuazhong@huawei.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1617853205-32760-1-git-send-email-tanhuazhong@huawei.com> References: <1617853205-32760-1-git-send-email-tanhuazhong@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.69.192.56] X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org From: Jiaran Zhang The flr_prepare/flr_done functions are not only used in the FLR scenario, but also used in the suspend/resume. Change the function names to prepare_for_reset/rebuild_for_reset, change the flr_prepare/flr_done to reset_prepare/reset_done in hnae3_ae_ops. Signed-off-by: Jiaran Zhang Signed-off-by: Huazhong Tan --- drivers/net/ethernet/hisilicon/hns3/hnae3.h | 5 ++-- drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 8 +++---- .../ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 27 ++++++++++++---------- .../ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c | 27 ++++++++++++---------- 4 files changed, 37 insertions(+), 30 deletions(-) diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.h b/drivers/net/ethernet/hisilicon/hns3/hnae3.h index a234116..1d21890 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hnae3.h +++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.h @@ -474,8 +474,9 @@ struct hnae3_ae_dev { struct hnae3_ae_ops { int (*init_ae_dev)(struct hnae3_ae_dev *ae_dev); void (*uninit_ae_dev)(struct hnae3_ae_dev *ae_dev); - void (*flr_prepare)(struct hnae3_ae_dev *ae_dev); - void (*flr_done)(struct hnae3_ae_dev *ae_dev); + void (*reset_prepare)(struct hnae3_ae_dev *ae_dev, + enum hnae3_reset_type rst_type); + void (*reset_done)(struct hnae3_ae_dev *ae_dev); int (*init_client_instance)(struct hnae3_client *client, struct hnae3_ae_dev *ae_dev); void (*uninit_client_instance)(struct hnae3_client *client, diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c index 076bfb7..67fc5aa 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c @@ -2423,8 +2423,8 @@ static void hns3_reset_prepare(struct pci_dev *pdev) struct hnae3_ae_dev *ae_dev = pci_get_drvdata(pdev); dev_info(&pdev->dev, "FLR prepare\n"); - if (ae_dev && ae_dev->ops && ae_dev->ops->flr_prepare) - ae_dev->ops->flr_prepare(ae_dev); + if (ae_dev && ae_dev->ops && ae_dev->ops->reset_prepare) + ae_dev->ops->reset_prepare(ae_dev, HNAE3_FLR_RESET); } static void hns3_reset_done(struct pci_dev *pdev) @@ -2432,8 +2432,8 @@ static void hns3_reset_done(struct pci_dev *pdev) struct hnae3_ae_dev *ae_dev = pci_get_drvdata(pdev); dev_info(&pdev->dev, "FLR done\n"); - if (ae_dev && ae_dev->ops && ae_dev->ops->flr_done) - ae_dev->ops->flr_done(ae_dev); + if (ae_dev && ae_dev->ops && ae_dev->ops->reset_done) + ae_dev->ops->reset_done(ae_dev); } static const struct pci_error_handlers hns3_err_handler = { diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c index bc805d5..47c95dc 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c @@ -11058,10 +11058,11 @@ static void hclge_state_uninit(struct hclge_dev *hdev) cancel_delayed_work_sync(&hdev->service_task); } -static void hclge_flr_prepare(struct hnae3_ae_dev *ae_dev) +static void hclge_reset_prepare_general(struct hnae3_ae_dev *ae_dev, + enum hnae3_reset_type rst_type) { -#define HCLGE_FLR_RETRY_WAIT_MS 500 -#define HCLGE_FLR_RETRY_CNT 5 +#define HCLGE_RESET_RETRY_WAIT_MS 500 +#define HCLGE_RESET_RETRY_CNT 5 struct hclge_dev *hdev = ae_dev->priv; int retry_cnt = 0; @@ -11070,30 +11071,32 @@ static void hclge_flr_prepare(struct hnae3_ae_dev *ae_dev) retry: down(&hdev->reset_sem); set_bit(HCLGE_STATE_RST_HANDLING, &hdev->state); - hdev->reset_type = HNAE3_FLR_RESET; + hdev->reset_type = rst_type; ret = hclge_reset_prepare(hdev); if (ret || hdev->reset_pending) { - dev_err(&hdev->pdev->dev, "fail to prepare FLR, ret=%d\n", + dev_err(&hdev->pdev->dev, "fail to prepare to reset, ret=%d\n", ret); if (hdev->reset_pending || - retry_cnt++ < HCLGE_FLR_RETRY_CNT) { + retry_cnt++ < HCLGE_RESET_RETRY_CNT) { dev_err(&hdev->pdev->dev, "reset_pending:0x%lx, retry_cnt:%d\n", hdev->reset_pending, retry_cnt); clear_bit(HCLGE_STATE_RST_HANDLING, &hdev->state); up(&hdev->reset_sem); - msleep(HCLGE_FLR_RETRY_WAIT_MS); + msleep(HCLGE_RESET_RETRY_WAIT_MS); goto retry; } } - /* disable misc vector before FLR done */ + /* disable misc vector before reset done */ hclge_enable_vector(&hdev->misc_vector, false); set_bit(HCLGE_STATE_CMD_DISABLE, &hdev->state); - hdev->rst_stats.flr_rst_cnt++; + + if (hdev->reset_type == HNAE3_FLR_RESET) + hdev->rst_stats.flr_rst_cnt++; } -static void hclge_flr_done(struct hnae3_ae_dev *ae_dev) +static void hclge_reset_done(struct hnae3_ae_dev *ae_dev) { struct hclge_dev *hdev = ae_dev->priv; int ret; @@ -12466,8 +12469,8 @@ static int hclge_get_module_eeprom(struct hnae3_handle *handle, u32 offset, static const struct hnae3_ae_ops hclge_ops = { .init_ae_dev = hclge_init_ae_dev, .uninit_ae_dev = hclge_uninit_ae_dev, - .flr_prepare = hclge_flr_prepare, - .flr_done = hclge_flr_done, + .reset_prepare = hclge_reset_prepare_general, + .reset_done = hclge_reset_done, .init_client_instance = hclge_init_client_instance, .uninit_client_instance = hclge_uninit_client_instance, .map_ring_to_vector = hclge_map_ring_to_vector, diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c index 1682769..c7d5c17 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c @@ -2114,10 +2114,11 @@ static void hclgevf_enable_vector(struct hclgevf_misc_vector *vector, bool en) writel(en ? 1 : 0, vector->addr); } -static void hclgevf_flr_prepare(struct hnae3_ae_dev *ae_dev) +static void hclgevf_reset_prepare_general(struct hnae3_ae_dev *ae_dev, + enum hnae3_reset_type rst_type) { -#define HCLGEVF_FLR_RETRY_WAIT_MS 500 -#define HCLGEVF_FLR_RETRY_CNT 5 +#define HCLGEVF_RESET_RETRY_WAIT_MS 500 +#define HCLGEVF_RESET_RETRY_CNT 5 struct hclgevf_dev *hdev = ae_dev->priv; int retry_cnt = 0; @@ -2126,29 +2127,31 @@ static void hclgevf_flr_prepare(struct hnae3_ae_dev *ae_dev) retry: down(&hdev->reset_sem); set_bit(HCLGEVF_STATE_RST_HANDLING, &hdev->state); - hdev->reset_type = HNAE3_FLR_RESET; + hdev->reset_type = rst_type; ret = hclgevf_reset_prepare(hdev); if (ret) { - dev_err(&hdev->pdev->dev, "fail to prepare FLR, ret=%d\n", + dev_err(&hdev->pdev->dev, "fail to prepare to reset, ret=%d\n", ret); if (hdev->reset_pending || - retry_cnt++ < HCLGEVF_FLR_RETRY_CNT) { + retry_cnt++ < HCLGEVF_RESET_RETRY_CNT) { dev_err(&hdev->pdev->dev, "reset_pending:0x%lx, retry_cnt:%d\n", hdev->reset_pending, retry_cnt); clear_bit(HCLGEVF_STATE_RST_HANDLING, &hdev->state); up(&hdev->reset_sem); - msleep(HCLGEVF_FLR_RETRY_WAIT_MS); + msleep(HCLGEVF_RESET_RETRY_WAIT_MS); goto retry; } } - /* disable misc vector before FLR done */ + /* disable misc vector before reset done */ hclgevf_enable_vector(&hdev->misc_vector, false); - hdev->rst_stats.flr_rst_cnt++; + + if (hdev->reset_type == HNAE3_FLR_RESET) + hdev->rst_stats.flr_rst_cnt++; } -static void hclgevf_flr_done(struct hnae3_ae_dev *ae_dev) +static void hclgevf_reset_done(struct hnae3_ae_dev *ae_dev) { struct hclgevf_dev *hdev = ae_dev->priv; int ret; @@ -3748,8 +3751,8 @@ void hclgevf_update_port_base_vlan_info(struct hclgevf_dev *hdev, u16 state, static const struct hnae3_ae_ops hclgevf_ops = { .init_ae_dev = hclgevf_init_ae_dev, .uninit_ae_dev = hclgevf_uninit_ae_dev, - .flr_prepare = hclgevf_flr_prepare, - .flr_done = hclgevf_flr_done, + .reset_prepare = hclgevf_reset_prepare_general, + .reset_done = hclgevf_reset_done, .init_client_instance = hclgevf_init_client_instance, .uninit_client_instance = hclgevf_uninit_client_instance, .start = hclgevf_ae_start, From patchwork Thu Apr 8 03:40:05 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Huazhong Tan X-Patchwork-Id: 12189899 X-Patchwork-Delegate: kuba@kernel.org 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 88E75C433ED for ; Thu, 8 Apr 2021 03:40:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5E742611BE for ; Thu, 8 Apr 2021 03:40:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229672AbhDHDkM (ORCPT ); Wed, 7 Apr 2021 23:40:12 -0400 Received: from szxga05-in.huawei.com ([45.249.212.191]:16031 "EHLO szxga05-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229552AbhDHDkK (ORCPT ); Wed, 7 Apr 2021 23:40:10 -0400 Received: from DGGEMS413-HUB.china.huawei.com (unknown [172.30.72.59]) by szxga05-in.huawei.com (SkyGuard) with ESMTP id 4FG6QH73XTzNtq5; Thu, 8 Apr 2021 11:37:11 +0800 (CST) Received: from localhost.localdomain (10.69.192.56) by DGGEMS413-HUB.china.huawei.com (10.3.19.213) with Microsoft SMTP Server id 14.3.498.0; Thu, 8 Apr 2021 11:39:48 +0800 From: Huazhong Tan To: , CC: , , , , , , Jiaran Zhang , Huazhong Tan Subject: [PATCH net-next 2/2] net: hns3: add suspend and resume pm_ops Date: Thu, 8 Apr 2021 11:40:05 +0800 Message-ID: <1617853205-32760-3-git-send-email-tanhuazhong@huawei.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1617853205-32760-1-git-send-email-tanhuazhong@huawei.com> References: <1617853205-32760-1-git-send-email-tanhuazhong@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.69.192.56] X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org From: Jiaran Zhang To implement the system suspend/resume functions, the NIC driver needs to support: 1. When the system enters the suspend mode, the driver needs to implement the suspend callback function of the NIC device. The driver needs to mute the device, stop all RX/TX activities of the device, and unmap the interrupt. 2. When the system enters the resume mode, the driver needs to implement the resume callback function of the NIC device and restore the device to the state before suspension. When the system enters the suspend and resume mode, the NIC driver actually executes the PF function reset process. When the PFs are suspending/resuming, VFs also enter the suspend/resume state because the PFs trigger the VFs to reset, therefore no operation is required when the VF pci_driver is suspending or resuming. Signed-off-by: Jiaran Zhang Signed-off-by: Huazhong Tan --- drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 29 ++++++++++++++++++++++ .../ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 2 ++ 2 files changed, 31 insertions(+) diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c index 67fc5aa..25afe5a 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c @@ -2365,6 +2365,32 @@ static void hns3_shutdown(struct pci_dev *pdev) pci_set_power_state(pdev, PCI_D3hot); } +static int __maybe_unused hns3_suspend(struct device *dev) +{ + struct hnae3_ae_dev *ae_dev = dev_get_drvdata(dev); + + if (hns3_is_phys_func(ae_dev->pdev)) { + dev_info(dev, "Begin to suspend.\n"); + if (ae_dev && ae_dev->ops && ae_dev->ops->reset_prepare) + ae_dev->ops->reset_prepare(ae_dev, HNAE3_FUNC_RESET); + } + + return 0; +} + +static int __maybe_unused hns3_resume(struct device *dev) +{ + struct hnae3_ae_dev *ae_dev = dev_get_drvdata(dev); + + if (hns3_is_phys_func(ae_dev->pdev)) { + dev_info(dev, "Begin to resume.\n"); + if (ae_dev && ae_dev->ops && ae_dev->ops->reset_done) + ae_dev->ops->reset_done(ae_dev); + } + + return 0; +} + static pci_ers_result_t hns3_error_detected(struct pci_dev *pdev, pci_channel_state_t state) { @@ -2443,12 +2469,15 @@ static const struct pci_error_handlers hns3_err_handler = { .reset_done = hns3_reset_done, }; +static SIMPLE_DEV_PM_OPS(hns3_pm_ops, hns3_suspend, hns3_resume); + static struct pci_driver hns3_driver = { .name = hns3_driver_name, .id_table = hns3_pci_tbl, .probe = hns3_probe, .remove = hns3_remove, .shutdown = hns3_shutdown, + .driver.pm = &hns3_pm_ops, .sriov_configure = hns3_pci_sriov_configure, .err_handler = &hns3_err_handler, }; diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c index 47c95dc..c446b63 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c @@ -11094,6 +11094,8 @@ static void hclge_reset_prepare_general(struct hnae3_ae_dev *ae_dev, if (hdev->reset_type == HNAE3_FLR_RESET) hdev->rst_stats.flr_rst_cnt++; + else if (hdev->reset_type == HNAE3_FUNC_RESET) + hdev->rst_stats.pf_rst_cnt++; } static void hclge_reset_done(struct hnae3_ae_dev *ae_dev)