From: patchwork-bot+netdevbpf@kernel.org
To: Hamza Mahfooz <hamzamahfooz@linux.microsoft.com>
Cc: netdev@vger.kernel.org, haiyangz@microsoft.com,
wei.liu@kernel.org, decui@microsoft.com, andrew+netdev@lunn.ch,
davem@davemloft.net, edumazet@google.com, kuba@kernel.org,
pabeni@redhat.com, kotaranov@microsoft.com, horms@kernel.org,
ast@kernel.org, daniel@iogearbox.net, hawk@kernel.org,
john.fastabend@gmail.com, ernis@linux.microsoft.com,
gargaditya@linux.microsoft.com, dipayanroy@linux.microsoft.com,
leitao@debian.org, jacob.e.keller@intel.com,
ssengar@linux.microsoft.com, linux-hyperv@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org,
bpf@vger.kernel.org, stable@vger.kernel.org
Subject: Re: [PATCH net v2] net: mana: reserve RX buffer headroom to fix forwarding performance
Date: Thu, 08 Oct 2026 17:50:07 +0000 [thread overview]
Message-ID: <179148180777.369078.5370771541534290369.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20261003013647.2051416-1-hamzamahfooz@linux.microsoft.com>
Hello:
This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@kernel.org>:
On Fri, 2 Oct 2026 21:36:47 -0400 you wrote:
> Commit 730ff06d3f5c ("net: mana: Use page pool fragments for RX buffers
> instead of full pages to improve memory efficiency.") started handing
> out RX buffers with zero headroom so that two buffers fit into one page
> at the default MTU.
>
> The MANA TX path, however, stores the per scatter-gather entry DMA
> mappings in `struct mana_skb_head` at skb->head, and mana_start_xmit()
> therefore calls skb_cow_head(skb, MANA_HEADROOM). The port advertises
> this requirement as ndev->needed_headroom = MANA_HEADROOM.
>
> [...]
Here is the summary with links:
- [net,v2] net: mana: reserve RX buffer headroom to fix forwarding performance
https://git.kernel.org/netdev/net/c/259c4a519100
You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
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prev parent reply other threads:[~2026-10-08 17:50 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-03 1:36 [PATCH net v2] net: mana: reserve RX buffer headroom to fix forwarding performance Hamza Mahfooz
2026-10-03 1:47 ` sashiko-bot
2026-10-07 15:09 ` Simon Horman
2026-10-08 17:50 ` patchwork-bot+netdevbpf [this message]
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