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Miller" Cc: Saeed Mahameed , Leon Romanovsky , Mark Bloch , netdev@vger.kernel.org, linux-rdma@vger.kernel.org, linux-kernel@vger.kernel.org, Gal Pressman , Moshe Shemesh , Alexei Lazar , Dragos Tatulea References: <20260203073021.1710806-1-tariqt@nvidia.com> <20260203073021.1710806-2-tariqt@nvidia.com> Content-Language: en-US From: Tariq Toukan In-Reply-To: <20260203073021.1710806-2-tariqt@nvidia.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 03/02/2026 9:30, Tariq Toukan wrote: > From: Alexei Lazar > > 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 > Reviewed-by: Dragos Tatulea > Reviewed-by: Gal Pressman > Signed-off-by: Tariq Toukan 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@nvidia.com/