K 10
svn:author
V 2
np
K 8
svn:date
V 27
2017-09-09T05:12:14.338442Z
K 7
svn:log
V 636
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

END