That won't work for iWARP. Is this code new? I didn't see any errors that would result from this code when I tested iSER over
cxgb4 with the old iwarp support patches.
It's there since ~3.17 I think...
Perhaps we need another way to do this? Like a completion object in the QP that gets triggered when the SQ and RQ become empty
after a transition to ERROR (and CLOSING for iwarp). Then a core service that just waits until the QP is empty. Implementation of
this design would hit the providers though since only they know when the flush is completed.
ULPs need a drain functionality, so ib_drain_qp() is the way to go...
How about we add a drain_qp() callout and have:
if (qp->device->drain_qp) {
qp->device->drain_qp();
return;
}
IB drain qp logic...
This way iWARP devices can have their own magic on how to implement this
functionality.
Thoughts?
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