linux/drivers/infiniband/ulp
Sagi Grimberg 9d49f5e284 Target/iser: Fix hangs in connection teardown
In ungraceful teardowns isert close flows seem racy such that
isert_wait_conn hangs as RDMA_CM_EVENT_DISCONNECTED never
gets invoked (no one called rdma_disconnect).

Both graceful and ungraceful teardowns will have rx flush errors
(isert posts a batch once connection is established). Once all
flush errors are consumed we invoke isert_wait_conn and it will
be responsible for calling rdma_disconnect. This way it can be
sure that rdma_disconnect was called and it won't wait forever.

This patch also removes the logout_posted indicator. either the
logout completion was consumed and no problem decrementing the
post_send_buf_count, or it was consumed as a flush error. no point
of keeping it for isert_wait_conn as there is no danger that
isert_conn will be accidentally removed while it is running.

(Drop unnecessary sleep_on_conn_wait_comp check in
 isert_cq_rx_comp_err - nab)

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Cc: stable@vger.kernel.org # 3.10+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2014-05-19 14:38:49 -07:00
..
ipoib Merge branches 'cma', 'cxgb4', 'flowsteer', 'ipoib', 'misc', 'mlx4', 'mlx5', 'ocrdma', 'qib', 'srp' and 'usnic' into for-next 2014-01-22 23:24:13 -08:00
iser IB/iser: Bump driver version to 1.3 2014-04-01 11:09:46 -07:00
isert Target/iser: Fix hangs in connection teardown 2014-05-19 14:38:49 -07:00
srp IB/srp: Fix a race condition between failing I/O and I/O completion 2014-03-24 10:05:31 -07:00
srpt ib_srpt: Use correct ib_sg_dma primitives 2014-04-11 15:31:20 -07:00