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From: Thomas Monjalon <thomas@monjalon.net>
To: "lihuisong (C)" <lihuisong@huawei.com>
Cc: dev@dpdk.org, ferruh.yigit@intel.com, aman.deep.singh@intel.com,
	andrew.rybchenko@oktetlabs.ru, anatoly.burakov@intel.com
Subject: Re: [dpdk-dev] [PATCH V2] ethdev: fix eth device released repeatedly
Date: Thu, 14 Oct 2021 14:50:53 +0200
Message-ID: <2377545.FrEbOPdPNe@thomas> (raw)
In-Reply-To: <13a0f09e-fc93-3256-e58f-11cec1e02dc8@huawei.com>

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".

> Hope for your reply.  Thanks.

Thanks





  reply	other threads:[~2021-10-14 12:51 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-02 12:46 [dpdk-dev] [RFC V1] ethdev: fix the issue that dev uninit may be called twice Huisong Li
2021-08-03  2:30 ` [dpdk-dev] [RFC V2] ethdev: fix issue that dev close in PMD calls twice Huisong Li
2021-08-13  2:11   ` Huisong Li
2021-08-13  6:12     ` Thomas Monjalon
2021-08-13  8:16       ` Huisong Li
2021-08-18 11:24         ` Ferruh Yigit
2021-08-19  3:45           ` Huisong Li
2021-08-24 14:42             ` Ferruh Yigit
2021-08-25  9:53               ` Huisong Li
2021-09-04  1:23                 ` Huisong Li
2021-09-18  3:31                 ` Huisong Li
2021-09-20 14:07                 ` Ferruh Yigit
2021-09-22  3:31                   ` Huisong Li
2021-09-28  7:19                     ` Singh, Aman Deep
2021-09-30 10:54                       ` Huisong Li
2021-09-30 11:01                         ` Ferruh Yigit
2021-10-08  6:13                           ` lihuisong (C)
2021-08-18  9:47 ` [dpdk-dev] [RFC V1] ethdev: fix the issue that dev uninit may be called twice Singh, Aman Deep
2021-08-24  2:10   ` Huisong Li
2021-10-08  8:21 ` [dpdk-dev] [PATCH] ethdev: fix eth device released repeatedly Huisong Li
2021-10-08 10:23   ` Thomas Monjalon
2021-10-09  1:29     ` lihuisong (C)
2021-10-12 11:39 ` [dpdk-dev] [PATCH V2] " Huisong Li
2021-10-12 15:33   ` Thomas Monjalon
2021-10-14  3:50     ` lihuisong (C)
2021-10-14 12:32     ` lihuisong (C)
2021-10-14 12:50       ` Thomas Monjalon [this message]
2021-10-15  3:03         ` lihuisong (C)
2021-10-15  3:44 ` [dpdk-dev] [PATCH V3] " Huisong Li
2021-10-19 13:09   ` Ferruh Yigit
2021-10-21  2:31     ` lihuisong (C)
2021-10-21  2:24 ` [dpdk-dev] [PATCH V4] " Huisong Li
2021-10-21 21:19   ` Ferruh Yigit

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