net/mlx5: SD, add L2 table silent mode query support

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Add mlx5_fs_cmd_query_l2table_silent() to query the current silent mode
state from firmware. This allows detecting if firmware has already put
secondary devices into silent mode.

During SD group registration, query the silent mode of each device. If
a device is already in silent mode (set by firmware), record this in
the fw_silents_secondaries flag and use it to help determine the
primary/secondary roles.

When fw_silents_secondaries is set, skip the driver-initiated silent
mode set/unset operations since firmware manages this state. This
handles configurations where firmware persistently silences secondary
devices.

Signed-off-by: Shay Drory <shayd@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20260612113904.537595-6-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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This commit is contained in:

Shay Drory 2026-06-12 14:38:54 +03:00 • committed by Jakub Kicinski

parent 4b918a1983

commit 13158554a3

3 changed files with 114 additions and 14 deletions

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21

drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c

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2

drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.h

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105

drivers/net/ethernet/mellanox/mlx5/core/lib/sd.c

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