linux-kernel - Re: [PATCH net-next] net: stmmac: bump tc when get underflow error from DMA descriptor

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Message-Id: <163939860926.21128.12756625004904393893.git-patchwork-notify@kernel.org>
Date:   Mon, 13 Dec 2021 12:30:09 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Xiaoliang Yang <xiaoliang.yang_1@....com>
Cc:     davem@...emloft.net, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, kuba@...nel.org,
        qiangqing.zhang@....com, peppe.cavallaro@...com,
        alexandre.torgue@...s.st.com, joabreu@...opsys.com,
        yannick.vignon@....com, boon.leong.ong@...el.com,
        Jose.Abreu@...opsys.com, mst@...hat.com, sonic.zhang@...log.com,
        Joao.Pinto@...opsys.com, mingkai.hu@....com, leoyang.li@....com
Subject: Re: [PATCH net-next] net: stmmac: bump tc when get underflow error from
 DMA descriptor

Hello:

This patch was applied to netdev/net-next.git (master)
by David S. Miller <davem@...emloft.net>:

On Wed,  8 Dec 2021 18:06:51 +0800 you wrote:
> In DMA threshold mode, frame underflow errors may sometimes occur when
> the TC(threshold control) value is not enough. The TC value need to be
> bumped up in this case.
> 
> There is no underflow interrupt bit on DMA_CH(#i)_Status of dwmac4, so
> the DMA threshold cannot be bumped up in stmmac_dma_interrupt(). The
> i.mx8mp board observed an underflow error while running NFS boot, the
> NFS rootfs could not be mounted.
> 
> [...]

Here is the summary with links:
  - [net-next] net: stmmac: bump tc when get underflow error from DMA descriptor
    https://git.kernel.org/netdev/net-next/c/3a6c12a0c6c3

You are awesome, thank you!
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