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7898489880
For some mlx5 HW models (CX4, CX4Lx), the VF driver needs to put part of the packet headers on the TX descriptor so the e-switch can do proper matching and steering. This is called "min-inline", it's advertized to the VF by the FW and also enforced on them by the HW, such that if they don't obey, their packets are dropped. SRIOV VF libmlx5 instances should take into account the min-inline value of their vports. For that end, we provide this value through the vendor response part of init_ucontext command. The min inline value is reported in a way which will let newer libmlx5 instances realize that they are running over an older kernel and act accordingly (e.g apply some educated guess). Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Reviewed-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> |
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