RDMA/ocrdma: Debugfs enhancments for ocrdma driver
1. Add statistics counters for error cqes.
2. Add file ("reset_stats") to reset rdma stats in Debugfs.
Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com>
Signed-off-by: Mitesh Ahuja <mitesh.ahuja@emulex.com>
Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
index 4593f9d..fd93591 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
@@ -2594,8 +2594,11 @@
bool *polled, bool *stop)
{
bool expand;
+ struct ocrdma_dev *dev = get_ocrdma_dev(qp->ibqp.device);
int status = (le32_to_cpu(cqe->flags_status_srcqpn) &
OCRDMA_CQE_STATUS_MASK) >> OCRDMA_CQE_STATUS_SHIFT;
+ if (status < OCRDMA_MAX_CQE_ERR)
+ atomic_inc(&dev->cqe_err_stats[status]);
/* when hw sq is empty, but rq is not empty, so we continue
* to keep the cqe in order to get the cq event again.
@@ -2714,6 +2717,10 @@
int status)
{
bool expand;
+ struct ocrdma_dev *dev = get_ocrdma_dev(qp->ibqp.device);
+
+ if (status < OCRDMA_MAX_CQE_ERR)
+ atomic_inc(&dev->cqe_err_stats[status]);
/* when hw_rq is empty, but wq is not empty, so continue
* to keep the cqe to get the cq event again.