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Commit fab01fc5 authored by Ralph Campbell's avatar Ralph Campbell Committed by Roland Dreier
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IB/ipath: Fix PSN of send WQEs after an RDMA read resend 



The PSN of the first packet after an RDMA read is based on the size of
the RDMA read request. This is calculated correctly for the WQE sent
after the first request message but not on subsequent requests if the
RDMA read is resent.

Signed-off-by: default avatarRalph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: default avatarRoland Dreier <rolandd@cisco.com>
parent 7c37d744

drivers/infiniband/hw/ipath/ipath_rc.c

+2 −3
Original line number Diff line number Diff line
@@ -573,9 +573,8 @@ int ipath_make_rc_req(struct ipath_qp *qp) 
		ohdr->u.rc.reth.length = cpu_to_be32(qp->s_len);

		qp->s_state = OP(RDMA_READ_REQUEST);

		hwords += sizeof(ohdr->u.rc.reth) / sizeof(u32);

		bth2 = qp->s_psn++ & IPATH_PSN_MASK;

		if (ipath_cmp24(qp->s_psn, qp->s_next_psn) > 0)

			qp->s_next_psn = qp->s_psn;

		bth2 = qp->s_psn & IPATH_PSN_MASK;

		qp->s_psn = wqe->lpsn + 1;

		ss = NULL;

		len = 0;

		qp->s_cur++;