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IB/hfi1: Correct defered count after processing qp_wait_list

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The qp_wait_list processing leaves the defered ack count
at its prior value.

This can result in a premature send of an ack.

Fixed by unconditionally reseting the defered ack count
in hfi1_send_rc_ack().

Fixes: Commit 7c091e5c0685 ("staging/rdma/hfi1: add ACK coalescing logic")
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Mike Marciniszyn 2017-02-08 05:25:56 -08:00 committed by Doug Ledford
parent 8d8a473380
commit 4fcf1de5a7
1 changed files with 4 additions and 0 deletions
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4
drivers/infiniband/hw/hfi1/rc.c
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@ -853,6 +853,10 @@ void hfi1_send_rc_ack(struct hfi1_ctxtdata *rcd, struct rvt_qp *qp,
struct ib_header hdr;
struct ib_other_headers *ohdr;
unsigned long flags;
struct hfi1_qp_priv *priv = qp->priv;
/* clear the defer count */
priv->r_adefered = 0;
/* Don't send ACK or NAK if a RDMA read or atomic is pending. */
if (qp->s_flags & RVT_S_RESP_PENDING)