From: "lihuisong (C)" <lihuisong@huawei.com>
To: Thomas Monjalon <thomas@monjalon.net>
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: Fri, 15 Oct 2021 11:03:12 +0800 [thread overview]
Message-ID: <c31f17a9-f81a-48fc-efea-deb060670729@huawei.com> (raw)
In-Reply-To: <2377545.FrEbOPdPNe@thomas>
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
>
>
>
>
> .
next prev parent reply other threads:[~2021-10-15 3:03 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
2021-10-15 3:03 ` lihuisong (C) [this message]
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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