IB/ipath: Reset the retry counter for RDMA_READ_RESPONSE_MIDDLE packets

Reset the retry counter when we get a good RDMA_READ_RESPONSE_MIDDLE
packet.  This fix will prevent the requester from reporting a retry
exceeded error too early.

Signed-off-by: Patrick Marchand Latifi <patrick.latifi@qlogic.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/infiniband/hw/ipath/ipath_rc.c b/drivers/infiniband/hw/ipath/ipath_rc.c
index 459e46e2c016..40f3e37d7adc 100644
--- a/drivers/infiniband/hw/ipath/ipath_rc.c
+++ b/drivers/infiniband/hw/ipath/ipath_rc.c
@@ -1196,6 +1196,10 @@ static inline void ipath_rc_rcv_resp(struct ipath_ibdev *dev,
                         list_move_tail(&qp->timerwait,
                                        &dev->pending[dev->pending_index]);
                 spin_unlock(&dev->pending_lock);
+
+                if (opcode == OP(RDMA_READ_RESPONSE_MIDDLE))
+                        qp->s_retry = qp->s_retry_cnt;
+
                 /*
                  * Update the RDMA receive state but do the copy w/o
                  * holding the locks and blocking interrupts.