ACK: [PATCH 0/2][j/l linux-azure] Azure: mlx5e: Add support for PCI relaxed ordering (RO) for better performance

[Philip Cox]

On Thu, 2023-10-12 at 11:14 -0600, Tim Gardner wrote:
> BugLink: https://bugs.launchpad.net/bugs/2039208
> 
> SRU Justification
> 
> [Impact]
> On Azure, the VM SKU Standard_NC64as_T4_v3's bandwidth is 30 Gbps,
> but we can
> only reach 15~20 Gbps with the 5.15.0-1049-azure kernel in Ubuntu
> 20.04 or
> the 6.2.0-1014-azure kernel in Ubuntu 22.04.
> 
> After I pick up the upstream patch(es) to enable PCI relaxed ordering
> (RO) for
> the Mellanox VF NIC, the throughput goes up to 30.4 Gbps.
> 
> [Fix]
> 
> [1]
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=17347d5430c4e4e1a3c58ffa2732746bd26a9c02
> [2]
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e2351e517068718724f1d3b4010e2a41ec91fa76
> [3]
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=77528e2aed9246cf8017b8a6f1b658a264d6f2b2
> [4]
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ed4b0661cce119870edb1994fd06c9cbc1dc05c3
> 
> [Test Plan]
> 
> Microsoft tested
> 
> [Regression Potential]
> 
> Mellanox connections could be corrupted or run slower.
> 
> [Other Info]
> 
> SF: #00370735
> 
> 

-- 
Acked-by: Philip Cox <philip.cox at canonical.com>

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