net/mlx5: SD, support switchdev mode transition with shared FDB

Browse source

When the eswitch transitions, propagate the change to SD: secondaries
get their TX flow table root reconfigured for the new mode, and when
all group devices move to switchdev, the per-group shared FDB is
activated.

Shared FDB activation is best-effort - failure does not block the
eswitch transition; the next transition retries.

Note: the existing mlx5_get_sd() guard that blocks switchdev for SD
devices is intentionally retained. It will be removed once all
supporting patches are in place.

Signed-off-by: Shay Drory <shayd@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20260612113904.537595-8-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

...

This commit is contained in:

Shay Drory 2026-06-12 14:38:56 +03:00 • committed by Jakub Kicinski

parent a1bfe9f1da

commit 2a3fb8b2f4

3 changed files with 154 additions and 3 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

12

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

View file

138

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

View file

7

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

View file