Re: [PATCH net-next] net/mlx5e: Extend TC max ratelimit using max_bw_value_msb

[Tariq Toukan]

On 03/02/2026 9:30, Tariq Toukan wrote:
> From: Alexei Lazar <alazar@xxxxxxxxxx>
>
> The per-TC rate limit was restricted to 255 Gbps due to the 8-bit
> max_bw_value field in the QETC register.
> This limit is insufficient for newer, higher-bandwidth NICs.
>
> Extend the rate limit by using the full 16-bit max_bw_value field.
> This allows the finer 100Mbps granularity to be used for rates up to
> ~6.5 Tbps, instead of switching to 1Gbps granularity at higher rates.
>
> The extended range is only used when the device advertises support
> via the qetcr_qshr_max_bw_val_msb capability bit in the QCAM register.
>
> Signed-off-by: Alexei Lazar <alazar@xxxxxxxxxx>
> Reviewed-by: Dragos Tatulea <dtatulea@xxxxxxxxxx>
> Reviewed-by: Gal Pressman <gal@xxxxxxxxxx>
> Signed-off-by: Tariq Toukan <tariqt@xxxxxxxxxx>

Please ignore this one.
Mistakenly sent two similar patches (with a slight subject change).

Find the other one here:
https://lore.kernel.org/all/20260203073021.1710806-1-tariqt@xxxxxxxxxx/