From patchwork Fri Apr 9 10:16:01 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "humin (Q)" X-Patchwork-Id: 90958 X-Patchwork-Delegate: ferruh.yigit@amd.com Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 844A8A0579; Fri, 9 Apr 2021 12:15:54 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 57874140F34; Fri, 9 Apr 2021 12:15:50 +0200 (CEST) Received: from szxga07-in.huawei.com (szxga07-in.huawei.com [45.249.212.35]) by mails.dpdk.org (Postfix) with ESMTP id E3FB7140F20 for ; Fri, 9 Apr 2021 12:15:47 +0200 (CEST) Received: from DGGEMS401-HUB.china.huawei.com (unknown [172.30.72.60]) by szxga07-in.huawei.com (SkyGuard) with ESMTP id 4FGv990b0Mz9xbH for ; Fri, 9 Apr 2021 18:13:33 +0800 (CST) Received: from localhost.localdomain (10.69.192.56) by DGGEMS401-HUB.china.huawei.com (10.3.19.201) with Microsoft SMTP Server id 14.3.498.0; Fri, 9 Apr 2021 18:15:45 +0800 From: "Min Hu (Connor)" To: CC: Date: Fri, 9 Apr 2021 18:16:01 +0800 Message-ID: <1617963365-41299-4-git-send-email-humin29@huawei.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1617963365-41299-1-git-send-email-humin29@huawei.com> References: <1617963365-41299-1-git-send-email-humin29@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.69.192.56] X-CFilter-Loop: Reflected Subject: [dpdk-dev] [PATCH 3/7] net/hns3: fix FLR failure when RAS concurrently with FLR 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 Sender: "dev" From: Hongbo Zheng Currently, if RAS interrupt and FLR occurred at the same time, FLR will be detected and corresponding schedule state will be set during RAS interrupt processing. However, the schedule state value will be overridden in subsequent RAS processing, resulting in FLR processing failure. This patch solves this problem. Fixes: 2790c6464725 ("net/hns3: support device reset") Cc: stable@dpdk.org Signed-off-by: Hongbo Zheng Signed-off-by: Min Hu (Connor) --- drivers/net/hns3/hns3_intr.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/net/hns3/hns3_intr.c b/drivers/net/hns3/hns3_intr.c index 39a16a0..f3217c6 100644 --- a/drivers/net/hns3/hns3_intr.c +++ b/drivers/net/hns3/hns3_intr.c @@ -2133,10 +2133,11 @@ hns3_schedule_reset(struct hns3_adapter *hns) SCHEDULE_REQUESTED) return; if (__atomic_load_n(&hw->reset.schedule, __ATOMIC_RELAXED) == - SCHEDULE_DEFERRED) + SCHEDULE_DEFERRED) rte_eal_alarm_cancel(hw->reset.ops->reset_service, hns); - __atomic_store_n(&hw->reset.schedule, SCHEDULE_REQUESTED, - __ATOMIC_RELAXED); + else + __atomic_store_n(&hw->reset.schedule, SCHEDULE_REQUESTED, + __ATOMIC_RELAXED); rte_eal_alarm_set(SWITCH_CONTEXT_US, hw->reset.ops->reset_service, hns); }