Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull rdma updates from Jason Gunthorpe:
 "Quite a small cycle this time, even with the rc8. I suppose everyone
  went to sleep over xmas.

   - Minor driver updates for hfi1, cxgb4, erdma, hns, irdma, mlx5, siw,
     mana

   - inline CQE support for hns

   - Have mlx5 display device error codes

   - Pinned DMABUF support for irdma

   - Continued rxe cleanups, particularly converting the MRs to use
     xarray

   - Improvements to what can be cached in the mlx5 mkey cache"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (61 commits)
  IB/mlx5: Extend debug control for CC parameters
  IB/hfi1: Fix sdma.h tx->num_descs off-by-one errors
  IB/hfi1: Fix math bugs in hfi1_can_pin_pages()
  RDMA/irdma: Add support for dmabuf pin memory regions
  RDMA/mlx5: Use query_special_contexts for mkeys
  net/mlx5e: Use query_special_contexts for mkeys
  net/mlx5: Change define name for 0x100 lkey value
  net/mlx5: Expose bits for querying special mkeys
  RDMA/rxe: Fix missing memory barriers in rxe_queue.h
  RDMA/mana_ib: Fix a bug when the PF indicates more entries for registering memory on first packet
  RDMA/rxe: Remove rxe_alloc()
  RDMA/cma: Distinguish between sockaddr_in and sockaddr_in6 by size
  Subject: RDMA/rxe: Handle zero length rdma
  iw_cxgb4: Fix potential NULL dereference in c4iw_fill_res_cm_id_entry()
  RDMA/mlx5: Use rdma_umem_for_each_dma_block()
  RDMA/umem: Remove unused 'work' member from struct ib_umem
  RDMA/irdma: Cap MSIX used to online CPUs + 1
  RDMA/mlx5: Check reg_create() create for errors
  RDMA/restrack: Correct spelling
  RDMA/cxgb4: Fix potential null-ptr-deref in pass_establish()
  ...

1 files changed, 12 insertions, 10 deletions

diff --git a/drivers/infiniband/hw/mana/main.c b/drivers/infiniband/hw/mana/main.c
index 8b3bc302d6f3..7be4c3adb4e2 100644
--- a/drivers/infiniband/hw/mana/main.c
+++ b/drivers/infiniband/hw/mana/main.c
@@ -249,7 +249,8 @@ static int
 mana_ib_gd_first_dma_region(struct mana_ib_dev *dev,
 			    struct gdma_context *gc,
 			    struct gdma_create_dma_region_req *create_req,
-			    size_t num_pages, mana_handle_t *gdma_region)
+			    size_t num_pages, mana_handle_t *gdma_region,
+			    u32 expected_status)
 {
 	struct gdma_create_dma_region_resp create_resp = {};
 	unsigned int create_req_msg_size;
@@ -261,7 +262,7 @@ mana_ib_gd_first_dma_region(struct mana_ib_dev *dev,
 
 	err = mana_gd_send_request(gc, create_req_msg_size, create_req,
 				   sizeof(create_resp), &create_resp);
-	if (err || create_resp.hdr.status) {
+	if (err || create_resp.hdr.status != expected_status) {
 		ibdev_dbg(&dev->ib_dev,
 			  "Failed to create DMA region: %d, 0x%x\n",
 			  err, create_resp.hdr.status);
@@ -372,14 +373,21 @@ int mana_ib_gd_create_dma_region(struct mana_ib_dev *dev, struct ib_umem *umem,
 
 	page_addr_list = create_req->page_addr_list;
 	rdma_umem_for_each_dma_block(umem, &biter, page_sz) {
+		u32 expected_status = 0;
+
 		page_addr_list[tail++] = rdma_block_iter_dma_address(&biter);
 		if (tail < num_pages_to_handle)
 			continue;
 
+		if (num_pages_processed + num_pages_to_handle <
+		    num_pages_total)
+			expected_status = GDMA_STATUS_MORE_ENTRIES;
+
 		if (!num_pages_processed) {
 			/* First create message */
 			err = mana_ib_gd_first_dma_region(dev, gc, create_req,
-							  tail, gdma_region);
+							  tail, gdma_region,
+							  expected_status);
 			if (err)
 				goto out;
 
@@ -392,14 +400,8 @@ int mana_ib_gd_create_dma_region(struct mana_ib_dev *dev, struct ib_umem *umem,
 			page_addr_list = add_req->page_addr_list;
 		} else {
 			/* Subsequent create messages */
-			u32 expected_s = 0;
-
-			if (num_pages_processed + num_pages_to_handle <
-			    num_pages_total)
-				expected_s = GDMA_STATUS_MORE_ENTRIES;
-
 			err = mana_ib_gd_add_dma_region(dev, gc, add_req, tail,
-							expected_s);
+							expected_status);
 			if (err)
 				break;
 		}