RDMA/cxgb3: Don't allocate the SW queue for user mode CQs

Only kernel mode CQs need the SW queue memory allocated.  The SW queue
for user mode CQs is allocated in userspace by libcxgb3.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

1 files changed, 7 insertions, 7 deletions

diff --git a/drivers/infiniband/hw/cxgb3/cxio_hal.c b/drivers/infiniband/hw/cxgb3/cxio_hal.c
index 8837d56f9c92..a28e862f2d68 100644
--- a/drivers/infiniband/hw/cxgb3/cxio_hal.c
+++ b/drivers/infiniband/hw/cxgb3/cxio_hal.c
@@ -154,7 +154,7 @@ static int cxio_hal_clear_qp_ctx(struct cxio_rdev *rdev_p, u32 qpid)
         return iwch_cxgb3_ofld_send(rdev_p->t3cdev_p, skb);
 }
 
-int cxio_create_cq(struct cxio_rdev *rdev_p, struct t3_cq *cq)
+int cxio_create_cq(struct cxio_rdev *rdev_p, struct t3_cq *cq, int kernel)
 {
         struct rdma_cq_setup setup;
         int size = (1UL << (cq->size_log2)) * sizeof(struct t3_cqe);
@@ -162,12 +162,12 @@ int cxio_create_cq(struct cxio_rdev *rdev_p, struct t3_cq *cq)
         cq->cqid = cxio_hal_get_cqid(rdev_p->rscp);
         if (!cq->cqid)
                 return -ENOMEM;
-        cq->sw_queue = kzalloc(size, GFP_KERNEL);
-        if (!cq->sw_queue)
-                return -ENOMEM;
-        cq->queue = dma_alloc_coherent(&(rdev_p->rnic_info.pdev->dev),
-                                             (1UL << (cq->size_log2)) *
-                                             sizeof(struct t3_cqe),
+        if (kernel) {
+                cq->sw_queue = kzalloc(size, GFP_KERNEL);
+                if (!cq->sw_queue)
+                        return -ENOMEM;
+        }
+        cq->queue = dma_alloc_coherent(&(rdev_p->rnic_info.pdev->dev), size,
                                              &(cq->dma_addr), GFP_KERNEL);
         if (!cq->queue) {
                 kfree(cq->sw_queue);