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Subject[PATCH 2.6.26] RDMA/cxgb3: Wrap the software sq ptr as needed on flush.
Date

cxio_flush_sq() was failing to wrap around the sw-sq causing garbage
completion entries on a flush operation.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
---

drivers/infiniband/hw/cxgb3/cxio_hal.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/infiniband/hw/cxgb3/cxio_hal.c b/drivers/infiniband/hw/cxgb3/cxio_hal.c
index 5fd8506..20a6326 100644
--- a/drivers/infiniband/hw/cxgb3/cxio_hal.c
+++ b/drivers/infiniband/hw/cxgb3/cxio_hal.c
@@ -405,11 +405,11 @@ int cxio_flush_sq(struct t3_wq *wq, struct t3_cq *cq, int count)
struct t3_swsq *sqp = wq->sq + Q_PTR2IDX(wq->sq_rptr, wq->sq_size_log2);

ptr = wq->sq_rptr + count;
- sqp += count;
+ sqp = wq->sq + Q_PTR2IDX(ptr, wq->sq_size_log2);
while (ptr != wq->sq_wptr) {
insert_sq_cqe(wq, cq, sqp);
- sqp++;
ptr++;
+ sqp = wq->sq + Q_PTR2IDX(ptr, wq->sq_size_log2);
flushed++;
}
return flushed;

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