netdev - Re: [PATCH net-next v4] xsk: support use vaddr as ring

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Message-Id: <167688181847.23180.1453814070713890770.git-patchwork-notify@kernel.org>
Date:   Mon, 20 Feb 2023 08:30:18 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Xuan Zhuo <xuanzhuo@...ux.alibaba.com>
Cc:     netdev@...r.kernel.org, bjorn@...nel.org,
        magnus.karlsson@...el.com, maciej.fijalkowski@...el.com,
        jonathan.lemon@...il.com, davem@...emloft.net, edumazet@...gle.com,
        kuba@...nel.org, pabeni@...hat.com, ast@...nel.org,
        daniel@...earbox.net, hawk@...nel.org, john.fastabend@...il.com,
        bpf@...r.kernel.org
Subject: Re: [PATCH net-next v4] xsk: support use vaddr as ring

Hello:

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

On Thu, 16 Feb 2023 16:30:47 +0800 you wrote:
> When we try to start AF_XDP on some machines with long running time, due
> to the machine's memory fragmentation problem, there is no sufficient
> contiguous physical memory that will cause the start failure.
> 
> If the size of the queue is 8 * 1024, then the size of the desc[] is
> 8 * 1024 * 8 = 16 * PAGE, but we also add struct xdp_ring size, so it is
> 16page+. This is necessary to apply for a 4-order memory. If there are a
> lot of queues, it is difficult to these machine with long running time.
> 
> [...]

Here is the summary with links:
  - [net-next,v4] xsk: support use vaddr as ring
    https://git.kernel.org/netdev/net-next/c/9f78bf330a66

You are awesome, thank you!
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