np 5f42964041 cxgbe(4): Fix a couple of problems in the sge_wrq data path.
- start_wrq_wr must not drain the wr_list if there are incomplete_wrs
  pending.  This can happen when a t4_wrq_tx runs between two
  start_wrq_wr.

- commit_wrq_wr must examine the cookie's pidx and ndesc with the
  queue's lock held.  Otherwise there is a bad race when incomplete WRs
  are being completed and commit_wrq_wr for the WR that is ahead in the
  queue updates the next incomplete WR's cookie's pidx/ndesc but the
  commit_wrq_wr for the second one is using stale values that it read
  without the lock.

MFC after:	1 week
Sponsored by:	Chelsio Communications
2017-09-09 05:12:14 +00:00
..
2016-09-07 18:13:57 +00:00
2016-05-03 03:41:25 +00:00