commit 5083d3af8f0e67a2d2e4ea425b87bebafc545ef0
author Or Har-Toov <ohartoov@nvidia.com> Thu Sep 04 16:47:24 2025 +0300
committer Yishai Hadas <yishaih@nvidia.com> Wed Jan 07 09:53:17 2026 +0200
tree 54882039c145d0a25cba6805c5f7e93749275431
parent d4870bddee0005792a10476e172bdc85a4d04f9d

verbs: Add IBV_EVENT_DEVICE_SPEED_CHANGE to async events

Introduce IBV_EVENT_DEVICE_SPEED_CHANGE asynchronous event, which is
triggered when one or many of the device's port speeds change due to
configuration or state updates. This is especially useful in scenarios
such as VF LAG or Multiport LAG configuration, where the effective speed
of a VF can change if one of the PFs in the LAG changes state.

After receiving this event, applications can use ibv_query_port_speed()
on specific ports to check which ones have changed and obtain their new
speeds.

The event is generated at the device level to avoid flooding the user
with many separate notifications when multiple ports are affected
simultaneously, such as when a PF with many SFs changes state or when
all ports are part of a bonded device that updates speed. Users can then
query only those ports they care about for details.

Signed-off-by: Or Har-Toov <ohartoov@nvidia.com>
Reviewed-by: Patrisious Haddad <phaddad@nvidia.com>
Signed-off-by: Yishai Hadas <yishaih@nvidia.com>