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linux/drivers/infiniband
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Steve Wise 44d52834ef iw_cxgb4: do not send RX_DATA_ACK CPLs after close/abort 
[ Upstream commit 3bcf96e018 ]

Function rx_data(), which handles ingress CPL_RX_DATA messages, was
always sending an RX_DATA_ACK with the goal of updating the credits.
However, if the RDMA connection is moved out of FPDU mode abruptly,
then it is possible for iw_cxgb4 to process queued RX_DATA CPLs after HW
has aborted the connection.  These CPLs should not trigger RX_DATA_ACKS.
If they do, HW can see a READ after DELETE of the DB_LE hash entry for
the tid and post a LE_DB HashTblMemCrcError.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2017-08-11 08:49:36 -07:00
..
core RDMA/uverbs: Fix the check for port number 2017-08-06 18:59:43 -07:00
hw iw_cxgb4: do not send RX_DATA_ACK CPLs after close/abort 2017-08-11 08:49:36 -07:00
sw IB/rxe: Fix mem_check_range integer overflow 2017-02-14 15:25:42 -08:00
ulp iser-target: Avoid isert_conn->cm_id dereference in isert_login_recv_done 2017-07-27 15:08:06 -07:00
Kconfig qedr: Add RoCE driver framework 2016-10-14 15:00:10 -04:00
Makefile IB/rdmavt: Create module framework and handle driver registration 2016-03-10 20:37:04 -05:00