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IB/ipath: Fix PSN of send WQEs after an RDMA read resend

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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: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Ralph Campbell 2008-12-05 11:13:18 -08:00 committed by Roland Dreier
parent 7c37d74474
commit fab01fc560
1 changed files with 2 additions and 3 deletions
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5
drivers/infiniband/hw/ipath/ipath_rc.c
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@ -573,9 +573,8 @@ int ipath_make_rc_req(struct ipath_qp *qp)
ohdr->u.rc.reth.length = cpu_to_be32(qp->s_len); ohdr->u.rc.reth.length = cpu_to_be32(qp->s_len);
qp->s_state = OP(RDMA_READ_REQUEST); qp->s_state = OP(RDMA_READ_REQUEST);
hwords += sizeof(ohdr->u.rc.reth) / sizeof(u32); hwords += sizeof(ohdr->u.rc.reth) / sizeof(u32);
bth2 = qp->s_psn++ & IPATH_PSN_MASK; bth2 = qp->s_psn & IPATH_PSN_MASK;
if (ipath_cmp24(qp->s_psn, qp->s_next_psn) > 0) qp->s_psn = wqe->lpsn + 1;
qp->s_next_psn = qp->s_psn;
ss = NULL; ss = NULL;
len = 0; len = 0;
qp->s_cur++; qp->s_cur++;