From: patchwork-bot+netdevbpf@kernel.org
To: Shradha Gupta <shradhagupta@linux.microsoft.com>
Cc: decui@microsoft.com, wei.liu@kernel.org, haiyangz@microsoft.com,
kys@microsoft.com, andrew+netdev@lunn.ch, davem@davemloft.net,
edumazet@google.com, kuba@kernel.org, pabeni@redhat.com,
kotaranov@microsoft.com, horms@kernel.org,
ernis@linux.microsoft.com, dipayanroy@linux.microsoft.com,
shirazsaleem@microsoft.com, mhklinux@outlook.com,
longli@microsoft.com, yury.norov@gmail.com,
linux-hyperv@vger.kernel.org, linux-kernel@vger.kernel.org,
netdev@vger.kernel.org, paulros@microsoft.com,
shradhagupta@microsoft.com, ssengar@microsoft.com,
stable@vger.kernel.org, ynorov@nvidia.com
Subject: Re: [PATCH v5 net] net: mana: Optimize irq affinity for low vcpu configs
Date: Thu, 25 Jun 2026 16:20:44 +0000 [thread overview]
Message-ID: <178240444427.3803792.16004003411741167135.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20260624072138.1632849-1-shradhagupta@linux.microsoft.com>
Hello:
This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@kernel.org>:
On Wed, 24 Jun 2026 00:21:35 -0700 you wrote:
> Before the commit 755391121038 ("net: mana: Allocate MSI-X vectors
> dynamically"), all the MANA IRQs were assigned statically and together
> during early driver load.
>
> After this commit, the IRQ allocation for MANA was done in two phases.
> HWC IRQ allocated earlier and then, queue IRQs dynamically added at a
> later point. By this time, the IRQ weights on vCPUs can become imbalanced
> and if IRQ count is greater than the vCPU count the topology aware IRQ
> distribution logic in MANA can cause multiple MANA IRQs to land on the
> same vCPUs, while other sibling vCPUs have none (case 1).
>
> [...]
Here is the summary with links:
- [v5,net] net: mana: Optimize irq affinity for low vcpu configs
https://git.kernel.org/netdev/net/c/5316394b1752
You are awesome, thank you!
--
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prev parent reply other threads:[~2026-06-25 16:20 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-24 7:21 [PATCH v5 net] net: mana: Optimize irq affinity for low vcpu configs Shradha Gupta
2026-06-25 16:20 ` patchwork-bot+netdevbpf [this message]
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