The rq head in qpc was zero will miss the rq wqes which
have be sent, so here we should take the real value.
Signed-off-by: NLijun Ou <oulijun@huawei.com>
Reviewed-by: NWei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: NSalil Mehta <salil.mehta@huawei.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>