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authorRalph Campbell <ralph.campbell@qlogic.com>2008-10-27 15:31:25 -0700
committerRoland Dreier <rolandd@cisco.com>2008-10-27 15:31:25 -0700
commita8b56f296d7d977fea2512e353a131f8da490aa5 (patch)
treeb40928bd5bb7f77df0671bf8842c6cd69dc6d069 /drivers/infiniband/hw
parent332edc2f7fa58b818dfed1cede60272eecc27c0a (diff)
IB/ipath: Fix RDMA write with immediate copy of last packet
When the last packet of a RDMA write with immediate is received, the next receive work queue entry ID should be used to generate a completion entry. The code was incorrectly resetting part of the state used to copy the last packet. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/hw')
-rw-r--r--drivers/infiniband/hw/ipath/ipath_ruc.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_ruc.c b/drivers/infiniband/hw/ipath/ipath_ruc.c
index fc0f6d9e603..2296832f94d 100644
--- a/drivers/infiniband/hw/ipath/ipath_ruc.c
+++ b/drivers/infiniband/hw/ipath/ipath_ruc.c
@@ -156,7 +156,7 @@ bail:
/**
* ipath_get_rwqe - copy the next RWQE into the QP's RWQE
* @qp: the QP
- * @wr_id_only: update wr_id only, not SGEs
+ * @wr_id_only: update qp->r_wr_id only, not qp->r_sge
*
* Return 0 if no RWQE is available, otherwise return 1.
*
@@ -173,8 +173,6 @@ int ipath_get_rwqe(struct ipath_qp *qp, int wr_id_only)
u32 tail;
int ret;
- qp->r_sge.sg_list = qp->r_sg_list;
-
if (qp->ibqp.srq) {
srq = to_isrq(qp->ibqp.srq);
handler = srq->ibsrq.event_handler;
@@ -206,8 +204,10 @@ int ipath_get_rwqe(struct ipath_qp *qp, int wr_id_only)
wqe = get_rwqe_ptr(rq, tail);
if (++tail >= rq->size)
tail = 0;
- } while (!wr_id_only && !ipath_init_sge(qp, wqe, &qp->r_len,
- &qp->r_sge));
+ if (wr_id_only)
+ break;
+ qp->r_sge.sg_list = qp->r_sg_list;
+ } while (!ipath_init_sge(qp, wqe, &qp->r_len, &qp->r_sge));
qp->r_wr_id = wqe->wr_id;
wq->tail = tail;