[PATCH v3 0/3] new ib_drain_qp() API

[Steve Wise <swise-ut6Up61K2wZBDgjK7y7TUQ@public.gmane.org>]

This series creates new helper API functions for draining a queue pair.
It is a rework of an original patch created by Christoph Hellwig as
part of the CQ API rework and was dropped to be resubmitted by me with
iw_cxgb4 support.

Original thread: http://www.spinics.net/lists/linux-rdma/msg30296.html

Changes since v2:

- created 3 drain API functions: ib_drain_rq(), ib_drain_sq(), and
ib_drain_qp()

- add provider-specific drain function pointers for the sq and rq

- refactored the code a bit

- support for IB_DIRECT_POLL CQs


Changes since v1:

- added comments to the ib_drain_qp() function header specifying the
consumer requirements

- in __ib_drain_qp(), if the ib_post_send() fails, still wait for the
recv wr to drain since we already posted it.

- CC the SRP maintainer, bart.vanassche-XdAiOPVOjtvowKkBSvOlow@public.gmane.org

---

Steve Wise (3):
  IB: new common API for draining queues
  iw_cxgb4: add queue drain functions
  IB/srp: use ib_drain_rq()

 drivers/infiniband/core/verbs.c        | 144 +++++++++++++++++++++++++++++++++
 drivers/infiniband/hw/cxgb4/cq.c       |   9 ++-
 drivers/infiniband/hw/cxgb4/iw_cxgb4.h |   4 +
 drivers/infiniband/hw/cxgb4/provider.c |   2 +
 drivers/infiniband/hw/cxgb4/qp.c       |  16 ++++
 drivers/infiniband/ulp/srp/ib_srp.c    |  40 +--------
 include/rdma/ib_verbs.h                |   5 ++
 7 files changed, 183 insertions(+), 37 deletions(-)

-- 
2.7.0

--
To unsubscribe from this list: send the line "unsubscribe linux-rdma" in
the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html