From nobody Wed Nov 27 12:28:15 2024 Received: from szxga06-in.huawei.com (szxga06-in.huawei.com [45.249.212.32]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B7320212F0E; Fri, 11 Oct 2024 09:51:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.32 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728640320; cv=none; b=Z5cPQGiJQ98lJdxvp6RUUVM0PreDS5pgISXnQtIn7DnDhkSa+/UurW3OGaDnTZ5ligp+nvtiCjeD6LIhjZpXBs7h12NEVr6mBfTpkaJPMTrkE6/XFhAd8lho/yumvFjaU0bkK1pXSWE057Ey/+dlbFDF2IzROXvZO/zuOWRypd4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728640320; c=relaxed/simple; bh=UtdNmvjICnBZD6p/TYuXBcv7rzHVH/JrPElFaCoDD3s=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=Rrn08Jblr6wE6DXGSrN8NmOoPVB4VvfbjcwthKU2QveX3raWm8eVQO3SnYS3s0cF+oO4KAGrmrZkqqwItuXmN2RYi2t5nc1CeQ1uTknn6s+gbY0rtmi4/pKonSxDrDqN4Vx3uCZv3I26jNEVB/AeNLC4bQArbYUmtdiFqO0n5HM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com; spf=pass smtp.mailfrom=huawei.com; arc=none smtp.client-ip=45.249.212.32 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huawei.com Received: from mail.maildlp.com (unknown [172.19.88.214]) by szxga06-in.huawei.com (SkyGuard) with ESMTP id 4XQ22y5wbRz2WQs0; Fri, 11 Oct 2024 17:51:54 +0800 (CST) Received: from kwepemm000007.china.huawei.com (unknown [7.193.23.189]) by mail.maildlp.com (Postfix) with ESMTPS id EFF741A016C; Fri, 11 Oct 2024 17:51:49 +0800 (CST) Received: from localhost.localdomain (10.90.30.45) by kwepemm000007.china.huawei.com (7.193.23.189) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.39; Fri, 11 Oct 2024 17:51:49 +0800 From: Jijie Shao To: , , , , , CC: , , , , , , Subject: [PATCH net 6/9] net: hns3: don't auto enable misc vector Date: Fri, 11 Oct 2024 17:45:18 +0800 Message-ID: <20241011094521.3008298-7-shaojijie@huawei.com> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20241011094521.3008298-1-shaojijie@huawei.com> References: <20241011094521.3008298-1-shaojijie@huawei.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) To kwepemm000007.china.huawei.com (7.193.23.189) Content-Type: text/plain; charset="utf-8" From: Jian Shen Currently, there is a time window between misc irq enabled and service task inited. If an interrupte is reported at this time, it will cause warning like below: [ 16.324639] Call trace: [ 16.324641] __queue_delayed_work+0xb8/0xe0 [ 16.324643] mod_delayed_work_on+0x78/0xd0 [ 16.324655] hclge_errhand_task_schedule+0x58/0x90 [hclge] [ 16.324662] hclge_misc_irq_handle+0x168/0x240 [hclge] [ 16.324666] __handle_irq_event_percpu+0x64/0x1e0 [ 16.324667] handle_irq_event+0x80/0x170 [ 16.324670] handle_fasteoi_edge_irq+0x110/0x2bc [ 16.324671] __handle_domain_irq+0x84/0xfc [ 16.324673] gic_handle_irq+0x88/0x2c0 [ 16.324674] el1_irq+0xb8/0x140 [ 16.324677] arch_cpu_idle+0x18/0x40 [ 16.324679] default_idle_call+0x5c/0x1bc [ 16.324682] cpuidle_idle_call+0x18c/0x1c4 [ 16.324684] do_idle+0x174/0x17c [ 16.324685] cpu_startup_entry+0x30/0x6c [ 16.324687] secondary_start_kernel+0x1a4/0x280 [ 16.324688] ---[ end trace 6aa0bff672a964aa ]--- So don't auto enable misc vector when request irq.. Fixes: 7be1b9f3e99f ("net: hns3: make hclge_service use delayed workqueue") Signed-off-by: Jian Shen Signed-off-by: Jijie Shao --- .../net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/driv= ers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c index 35c618c794be..07e48145f3fe 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c @@ -6,6 +6,7 @@ #include #include #include +#include #include #include #include @@ -3779,6 +3780,7 @@ static int hclge_misc_irq_init(struct hclge_dev *hdev) /* this would be explicitly freed in the end */ snprintf(hdev->misc_vector.name, HNAE3_INT_NAME_LEN, "%s-misc-%s", HCLGE_NAME, pci_name(hdev->pdev)); + irq_set_status_flags(hdev->misc_vector.vector_irq, IRQ_NOAUTOEN); ret =3D request_irq(hdev->misc_vector.vector_irq, hclge_misc_irq_handle, 0, hdev->misc_vector.name, hdev); if (ret) { @@ -11916,9 +11918,6 @@ static int hclge_init_ae_dev(struct hnae3_ae_dev *a= e_dev) =20 hclge_init_rxd_adv_layout(hdev); =20 - /* Enable MISC vector(vector0) */ - hclge_enable_vector(&hdev->misc_vector, true); - ret =3D hclge_init_wol(hdev); if (ret) dev_warn(&pdev->dev, @@ -11931,6 +11930,10 @@ static int hclge_init_ae_dev(struct hnae3_ae_dev *= ae_dev) hclge_state_init(hdev); hdev->last_reset_time =3D jiffies; =20 + /* Enable MISC vector(vector0) */ + enable_irq(hdev->misc_vector.vector_irq); + hclge_enable_vector(&hdev->misc_vector, true); + dev_info(&hdev->pdev->dev, "%s driver initialization finished.\n", HCLGE_DRIVER_NAME); =20 @@ -12336,7 +12339,7 @@ static void hclge_uninit_ae_dev(struct hnae3_ae_dev= *ae_dev) =20 /* Disable MISC vector(vector0) */ hclge_enable_vector(&hdev->misc_vector, false); - synchronize_irq(hdev->misc_vector.vector_irq); + disable_irq(hdev->misc_vector.vector_irq); =20 /* Disable all hw interrupts */ hclge_config_mac_tnl_int(hdev, false); --=20 2.33.0