Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 4fcf1de5 authored by Mike Marciniszyn's avatar Mike Marciniszyn Committed by Doug Ledford
Browse files

IB/hfi1: Correct defered count after processing qp_wait_list 



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 7c091e5c ("staging/rdma/hfi1: add ACK coalescing logic")
Signed-off-by: default avatarMike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: default avatarDennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent 8d8a4733

drivers/infiniband/hw/hfi1/rc.c

+4 −0
Original line number Diff line number Diff line
@@ -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)