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net/mlx5: Add qp_latency_sensitive_disable cap bit

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Introduce the qp_latency_sensitive_disable capability bit to indicate
that the device no longer implements a separate class for
latency-sensitive QPs, so drivers can stop programming the
latency_sensitive QPC field and skip allocating the dedicated
fast-path bfreg on such HW.

Signed-off-by: Michael Guralnik <michaelgur@nvidia.com>
Reviewed-by: Patrisious Haddad <phaddad@nvidia.com>
Signed-off-by: Edward Srouji <edwards@nvidia.com>
Link: https://patch.msgid.link/20260726-deprecate-lat-qps-v2-1-5e0c2ee55046@nvidia.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
This commit is contained in:
Michael Guralnik 2026-07-26 12:09:40 +03:00 committed by Leon Romanovsky
parent bee40a7d0b
commit 36b1d3299d
1 changed files with 2 additions and 1 deletions
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3
include/linux/mlx5/mlx5_ifc.h
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@ -2005,7 +2005,8 @@ struct mlx5_ifc_cmd_hca_cap_bits {
u8 log_max_stride_sz_rq[0x5];
u8 reserved_at_3a8[0x3];
u8 log_min_stride_sz_rq[0x5];
u8 reserved_at_3b0[0x3];
u8 reserved_at_3b0[0x2];
u8 qp_latency_sensitive_disable[0x1];
u8 log_max_stride_sz_sq[0x5];
u8 reserved_at_3b8[0x3];
u8 log_min_stride_sz_sq[0x5];