From: David Miller <davem@davemloft.net>
To: tanhuazhong@huawei.com
Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
salil.mehta@huawei.com, yisen.zhuang@huawei.com,
linuxarm@huawei.com, shenjian15@huawei.com
Subject: Re: [PATCH V2 net] net: hns3: add dma_rmb() for rx description
Date: Fri, 08 Mar 2019 14:44:10 -0800 (PST) [thread overview]
Message-ID: <20190308.144410.1636101669020017013.davem@davemloft.net> (raw)
In-Reply-To: <1551842797-11883-1-git-send-email-tanhuazhong@huawei.com>
From: Huazhong Tan <tanhuazhong@huawei.com>
Date: Wed, 6 Mar 2019 11:26:37 +0800
> From: Jian Shen <shenjian15@huawei.com>
>
> HW can not guarantee complete write desc->rx.size, even though
> HNS3_RXD_VLD_B has been set. Driver needs to add dma_rmb()
> instruction to make sure desc->rx.size is always valid.
>
> Fixes: e55970950556 ("net: hns3: Add handling of GRO Pkts not fully RX'ed in NAPI poll")
> Signed-off-by: Jian Shen <shenjian15@huawei.com>
> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
> ---
> V1->V2: fixes comment from David Miller
Applied and queued up for -stable, thank you.
prev parent reply other threads:[~2019-03-08 22:44 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-06 3:26 [PATCH V2 net] net: hns3: add dma_rmb() for rx description Huazhong Tan
2019-03-08 22:44 ` David Miller [this message]
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