From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id C7942A0C4C; Fri, 15 Oct 2021 05:03:17 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 9288A40041; Fri, 15 Oct 2021 05:03:17 +0200 (CEST) Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by mails.dpdk.org (Postfix) with ESMTP id B7B4D4003C for ; Fri, 15 Oct 2021 05:03:16 +0200 (CEST) Received: from dggemv711-chm.china.huawei.com (unknown [172.30.72.54]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4HVrdV1P9PzWr9T; Fri, 15 Oct 2021 11:01:34 +0800 (CST) Received: from dggema767-chm.china.huawei.com (10.1.198.209) by dggemv711-chm.china.huawei.com (10.1.198.66) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.1.2308.8; Fri, 15 Oct 2021 11:03:12 +0800 Received: from [10.67.103.231] (10.67.103.231) by dggema767-chm.china.huawei.com (10.1.198.209) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2308.8; Fri, 15 Oct 2021 11:03:12 +0800 Message-ID: Date: Fri, 15 Oct 2021 11:03:12 +0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Thunderbird/91.2.0 To: Thomas Monjalon CC: , , , , References: <1627908397-51565-1-git-send-email-lihuisong@huawei.com> <2527815.Doo92MvZa3@thomas> <13a0f09e-fc93-3256-e58f-11cec1e02dc8@huawei.com> <2377545.FrEbOPdPNe@thomas> From: "lihuisong (C)" In-Reply-To: <2377545.FrEbOPdPNe@thomas> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 8bit X-Originating-IP: [10.67.103.231] X-ClientProxiedBy: dggems702-chm.china.huawei.com (10.3.19.179) To dggema767-chm.china.huawei.com (10.1.198.209) X-CFilter-Loop: Reflected Subject: Re: [dpdk-dev] [PATCH V2] ethdev: fix eth device released repeatedly 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" 在 2021/10/14 20:50, Thomas Monjalon 写道: > 14/10/2021 14:32, lihuisong (C): >> Hi, Thomas >> >> *The commit log:* >> In secondary process, rte_eth_dev_close() doesn't clear eth_dev->data. >> If calling rte_dev_remove() after rte_eth_dev_close(), in >> rte_eth_dev_pci_generic_remove() >> function, the released eth device still can be found by its name in >> shared memory. >> As a result, the eth device will be released repeatedly. The state of >> the eth device >> is modified to RTE_ETH_DEV_UNUSED after rte_eth_dev_close(). So this >> state can >> be used to avoid this problem. >> >> Is that will be more clear? > Yes, that's clear (at least for me). > >> /* >> * A released eth device can be found by its name in shared memory. >> * If the state of the eth device is RTE_ETH_DEV_UNUSED, which means >> * the eth device has been released. >> */ >> >> Is it ok to use the above description as a comment in the code? > Yes. One small change, I think "which" should be "it". Thanks. I will fix it. > >> Hope for your reply. Thanks. > Thanks > > > > > .