On Wed, Dec 21, 2016 at 03:42:09AM -0800, Selvin Xavier wrote: > Implements callback handler for processing Async events related to a QP. > This patch also implements the control path command completion handling. > > v3: Removes unwanted braces > > Signed-off-by: Eddie Wai <[email protected]> > Signed-off-by: Devesh Sharma <[email protected]> > Signed-off-by: Somnath Kotur <[email protected]> > Signed-off-by: Sriharsha Basavapatna <[email protected]> > Signed-off-by: Selvin Xavier <[email protected]> > --- > drivers/infiniband/hw/bnxt_re/qplib_rcfw.c | 47 > ++++++++++++++++++++++++++++++ > 1 file changed, 47 insertions(+) > > diff --git a/drivers/infiniband/hw/bnxt_re/qplib_rcfw.c > b/drivers/infiniband/hw/bnxt_re/qplib_rcfw.c > index 9144b5a..a000397 100644 > --- a/drivers/infiniband/hw/bnxt_re/qplib_rcfw.c > +++ b/drivers/infiniband/hw/bnxt_re/qplib_rcfw.c > @@ -257,6 +257,44 @@ static int bnxt_qplib_process_func_event(struct > bnxt_qplib_rcfw *rcfw, > return 0; > } > > +static int bnxt_qplib_process_qp_event(struct bnxt_qplib_rcfw *rcfw, > + struct creq_qp_event *qp_event) > +{ > + struct bnxt_qplib_crsq *crsq = &rcfw->crsq; > + struct bnxt_qplib_hwq *cmdq = &rcfw->cmdq; > + struct bnxt_qplib_crsqe *crsqe; > + u16 cbit, cookie, blocked = 0; > + unsigned long flags; > + u32 sw_cons; > + > + switch (qp_event->event) { > + case CREQ_QP_EVENT_EVENT_QP_ERROR_NOTIFICATION: > + break;
it looks like if( ... ) return 0;
> + default:
> + /* Command Response */
> + spin_lock_irqsave(&cmdq->lock, flags);
> + sw_cons = HWQ_CMP(crsq->cons, crsq);
> + crsqe = &crsq->crsq[sw_cons];
> + crsq->cons++;
> + memcpy(&crsqe->qp_event, qp_event, sizeof(crsqe->qp_event));
> +
> + cookie = le16_to_cpu(crsqe->qp_event.cookie);
> + blocked = cookie & RCFW_CMD_IS_BLOCKING;
> + cookie &= RCFW_MAX_COOKIE_VALUE;
> + cbit = cookie % RCFW_MAX_OUTSTANDING_CMD;
> + if (!test_and_clear_bit(cbit, rcfw->cmdq_bitmap))
> + dev_warn(&rcfw->pdev->dev,
> + "QPLIB: CMD bit %d was not requested", cbit);
> +
> + cmdq->cons += crsqe->req_size;
> + spin_unlock_irqrestore(&cmdq->lock, flags);
> + if (!blocked)
> + wake_up(&rcfw->waitq);
> + break;
> + }
> + return 0;
> +}
> +
> /* SP - CREQ Completion handlers */
> static void bnxt_qplib_service_creq(unsigned long data)
> {
> @@ -280,6 +318,15 @@ static void bnxt_qplib_service_creq(unsigned long data)
> type = creqe->type & CREQ_BASE_TYPE_MASK;
> switch (type) {
> case CREQ_BASE_TYPE_QP_EVENT:
> + if (!bnxt_qplib_process_qp_event
> + (rcfw, (struct creq_qp_event *)creqe))
> + rcfw->creq_qp_event_processed++;
> + else {
> + dev_warn(&rcfw->pdev->dev, "QPLIB: crsqe with");
> + dev_warn(&rcfw->pdev->dev,
> + "QPLIB: type = 0x%x not handled",
> + type);
> + }
> break;
> case CREQ_BASE_TYPE_FUNC_EVENT:
> if (!bnxt_qplib_process_func_event
> --
> 2.5.5
>
> --
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