* Re: question about PSN sequence error cause (mlx5)
[not found] <CAN-5tyHSyLU-6CKrkAxsEgyA9ZUXeTGrUVSd25zJ00vgUQ5Mgg@mail.gmail.com>
@ 2024-01-30 19:21 ` Leon Romanovsky
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From: Leon Romanovsky @ 2024-01-30 19:21 UTC (permalink / raw)
To: Olga Kornievskaia; +Cc: linux-rdma
On Tue, Jan 30, 2024 at 10:03:29AM -0500, Olga Kornievskaia wrote:
> Hi Leon,
>
> I have a question about the PSN sequence error emitted by the RDMA
> Roce (using Cx-6 card). Could you confirm/provide info about the
> possible cause other than the packet being dropped by the switch?
> Earlier it was confirmed that the PSN checking is done in firmware but the
> setting/getting of the PSN is done in the kernel. I wanted to confirm
> the driver can't drop packets due to resource constraints of sorts.
Driver is responsible for control-path only. All data-path is done by HW.
>
> Thank you.
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2024-01-30 19:21 ` question about PSN sequence error cause (mlx5) Leon Romanovsky
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