ib_srpt: Remove ib_get_dma_mr calls

The pd now has a local_dma_lkey member which completely replaces
ib_get_dma_mr, use it instead.
Signed-off-by: NJason Gunthorpe <jgunthorpe@obsidianresearch.com>
Reviewed-by: NSagi Grimberg <sagig@mellanox.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

drivers/infiniband/ulp/srpt/ib_srpt.c

@@ -783,7 +783,7 @@ static int srpt_post_recv(struct srpt_device *sdev,
 
 	list.addr = ioctx->ioctx.dma;
 	list.length = srp_max_req_size;
-	list.lkey = sdev->mr->lkey;
+	list.lkey = sdev->pd->local_dma_lkey;
 
 	wr.next = NULL;
 	wr.sg_list = &list;
@@ -818,7 +818,7 @@ static int srpt_post_send(struct srpt_rdma_ch *ch,
 
 	list.addr = ioctx->ioctx.dma;
 	list.length = len;
-	list.lkey = sdev->mr->lkey;
+	list.lkey = sdev->pd->local_dma_lkey;
 
 	wr.next = NULL;
 	wr.wr_id = encode_wr_id(SRPT_SEND, ioctx->ioctx.index);
@@ -1206,7 +1206,7 @@ static int srpt_map_sg_to_ib_sge(struct srpt_rdma_ch *ch,
 
 		while (rsize > 0 && tsize > 0) {
 			sge->addr = dma_addr;
-			sge->lkey = ch->sport->sdev->mr->lkey;
+			sge->lkey = ch->sport->sdev->pd->local_dma_lkey;
 
 			if (rsize >= dma_len) {
 				sge->length =
@@ -3211,10 +3211,6 @@ static void srpt_add_one(struct ib_device *device)
 	if (IS_ERR(sdev->pd))
 		goto free_dev;
 
-	sdev->mr = ib_get_dma_mr(sdev->pd, IB_ACCESS_LOCAL_WRITE);
-	if (IS_ERR(sdev->mr))
-		goto err_pd;
-
 	sdev->srq_size = min(srpt_srq_size, sdev->dev_attr.max_srq_wr);
 
 	srq_attr.event_handler = srpt_srq_event;
@@ -3226,7 +3222,7 @@ static void srpt_add_one(struct ib_device *device)
 
 	sdev->srq = ib_create_srq(sdev->pd, &srq_attr);
 	if (IS_ERR(sdev->srq))
-		goto err_mr;
+		goto err_pd;
 
 	pr_debug("%s: create SRQ #wr= %d max_allow=%d dev= %s\n",
 		 __func__, sdev->srq_size, sdev->dev_attr.max_srq_wr,
@@ -3311,8 +3307,6 @@ static void srpt_add_one(struct ib_device *device)
 	ib_destroy_cm_id(sdev->cm_id);
 err_srq:
 	ib_destroy_srq(sdev->srq);
-err_mr:
-	ib_dereg_mr(sdev->mr);
 err_pd:
 	ib_dealloc_pd(sdev->pd);
 free_dev:
@@ -3357,7 +3351,6 @@ static void srpt_remove_one(struct ib_device *device, void *client_data)
 	srpt_release_sdev(sdev);
 
 	ib_destroy_srq(sdev->srq);
-	ib_dereg_mr(sdev->mr);
 	ib_dealloc_pd(sdev->pd);
 
 	srpt_free_ioctx_ring((struct srpt_ioctx **)sdev->ioctx_ring, sdev,

drivers/infiniband/ulp/srpt/ib_srpt.h

@@ -393,7 +393,6 @@ struct srpt_port {
 struct srpt_device {
 	struct ib_device	*device;
 	struct ib_pd		*pd;
-	struct ib_mr		*mr;
 	struct ib_srq		*srq;
 	struct ib_cm_id		*cm_id;
 	struct ib_device_attr	dev_attr;