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Yishai Hadas
ad4095d125
[ Upstream commit9c7c5430bc] Align the page tracking maximum message size with the device's capability instead of relying on PAGE_SIZE. This adjustment resolves a mismatch on systems where PAGE_SIZE is 64K, but the firmware only supports a maximum message size of 4K. Now that we rely on the device's capability for max_message_size, we must account for potential future increases in its value. Key considerations include: - Supporting message sizes that exceed a single system page (e.g., an 8K message on a 4K system). - Ensuring the RQ size is adjusted to accommodate at least 4 WQEs/messages, in line with the device specification. The above has been addressed as part of the patch. Fixes:79c3cf2799("vfio/mlx5: Init QP based resources for dirty tracking") Reviewed-by: Cédric Le Goater <clg@redhat.com> Tested-by: Yingshun Cui <yicui@redhat.com> Signed-off-by: Yishai Hadas <yishaih@nvidia.com> Link: https://lore.kernel.org/r/20241205122654.235619-1-yishaih@nvidia.com Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org>