linux/drivers/infiniband/ulp/isert
Nicholas Bellinger ebbe442183 iser-target: Fix command leak for tx_desc->comp_llnode_batch
This patch addresses a number of active I/O shutdown issues
related to isert_cmd descriptors being leaked that are part
of a completion interrupt coalescing batch.

This includes adding logic in isert_cq_tx_comp_err() to
drain any associated tx_desc->comp_llnode_batch, as well
as isert_cq_drain_comp_llist() to drain any associated
isert_conn->conn_comp_llist.

Also, set tx_desc->llnode_active in isert_init_send_wr()
in order to determine when work requests need to be skipped
in isert_cq_tx_work() exception path code.

Finally, update isert_init_send_wr() to only allow interrupt
coalescing when ISER_CONN_UP.

Acked-by: Sagi Grimberg <sagig@mellanox.com>
Cc: Or Gerlitz <ogerlitz@mellanox.com>
Cc: <stable@vger.kernel.org> #3.13+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2014-03-04 17:54:10 -08:00
..
ib_isert.c iser-target: Fix command leak for tx_desc->comp_llnode_batch 2014-03-04 17:54:10 -08:00
ib_isert.h iser-target: Fix command leak for tx_desc->comp_llnode_batch 2014-03-04 17:54:10 -08:00
isert_proto.h
Kconfig treewide: Fix typo in Kconfig 2013-10-14 15:23:02 +02:00
Makefile