net/mlx5: devcom, expose locked variant of send_event

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Factor mlx5_devcom_send_event() into two functions:
- mlx5_devcom_locked_send_event(): performs the dispatch (and
  rollback) with comp->sem already held by the caller.
- mlx5_devcom_send_event(): unchanged wrapper that takes comp->sem,
  calls the locked variant, and releases it.

This lets callers bracket multiple event broadcasts under a single
held write lock, eliminating the gap between consecutive dispatches
where peer state could change.

Will be used by a downstream patch.

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/20260612113904.537595-3-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 14:38:51 +03:00 • committed by Jakub Kicinski

parent 597baeb467

commit 95e26588c8

2 changed files with 25 additions and 7 deletions

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29

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

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3

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

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