sif: sqflush: Handle duplicate completions in poll_cq

sif: sqflush: Handle duplicate completions in poll_cq

Orabug: 23759723

During the QP transition from RTS-> ERR, the HW might generate
duplicate FLUSHED-IN-ERR completion. The SIF driver inverses the
sq_seq in a dedicated completion entry and sets the
CQ_POLLING_IGNORED_SEQ bit in the cq_sw flags. Nevertheless, this bit
is cleared once a duplicate FLUSHED-IN-ERR completion is detected in
poll_cq.

The above mentioned method cannot handle a scenario where HW generates
multiple duplicate completions. Thus, this patch moves the detection
of the duplicate completions to translate_wr_id. Then, SIF driver
will only return non duplicate completions to the user.

Signed-off-by: Wei Lin Guay <wei.lin.guay@oracle.com>
Reviewed-by: Knut Omang <knut.omang@oracle.com>