qcacld-3.0: Fix rx_starvation on multiple-rx case
In case of parallel rx execution, fill_count was being updated
by multiple threads and this was causing fill_count to be incorrect
in parallel rx execution cases. This was causing rx ring to be under
filled and in time was causing rx starvation (data stall).
Fix this by:
- making sure that we always fill the right number of buffers based
on the msdu_count in the in_order_indication message.
- making sure that only one execution thread fills the ring
- making sure that the lock holder (filling the ring) does not
run too long by introducing a max fill limit, in which case the
filler will give up and the contender (the other rx execution
thread) takes the lock and fills the ring itself.
CRs-Fixed: 1103851
Change-Id: I59ee2903d51877afc112a1a76b7a5529f1c6a5c0
4 files changed