mohi-kalantari cee978e348 Use setup_nic semaphore in Nic Nexus ...

An unused semaphore is added to Nic Nexus which allows us to notify the
Subnet to start the rekeying logic through the Nic.

In the former version, Vm would directly call the Subnet Nexus to
start the rekey process but if an unlucky nic didn't get enough CPU
time to reach the wait_setup state, it would miss the start_rekey
semaphore and since when we decr a semaphore, it is set to zero,
Nic strand would get stuck on wait_setup until a manual trigger is done.

Now each nic is used as the bridge between Vm and Subnet and this way,
we make sure Nic strand is in the right state before subnet starts
triggering different semaphores and logics.

2025-05-13 11:12:37 +02:00

12 KiB

Raw Permalink Blame History

View Raw