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authorRalph Campbell <ralph.campbell@qlogic.com>2008-12-05 11:13:18 -0800
committerRoland Dreier <rolandd@cisco.com>2008-12-05 11:13:18 -0800
commitfab01fc56063dafcc083f481ac0f9e6b5a576dd6 (patch)
tree8b1063ec87ec440b3bc85efe31970948087ad818 /drivers/infiniband
parent7c37d74474c8ee8ddcd5a2d2a9571d4a1290c844 (diff)
downloadlinux-fab01fc56063dafcc083f481ac0f9e6b5a576dd6.tar.bz2
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: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband')
-rw-r--r--drivers/infiniband/hw/ipath/ipath_rc.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_rc.c b/drivers/infiniband/hw/ipath/ipath_rc.c
index 7b93cda1a4bd..9170710b950d 100644
--- a/drivers/infiniband/hw/ipath/ipath_rc.c
+++ b/drivers/infiniband/hw/ipath/ipath_rc.c
@@ -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++;