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

Pull rdma updates from Doug Ledford:
 "This is my initial round of 4.4 merge window patches.  There are a few
  other things I wish to get in for 4.4 that aren't in this pull, as
  this represents what has gone through merge/build/run testing and not
  what is the last few items for which testing is not yet complete.

   - "Checksum offload support in user space" enablement
   - Misc cxgb4 fixes, add T6 support
   - Misc usnic fixes
   - 32 bit build warning fixes
   - Misc ocrdma fixes
   - Multicast loopback prevention extension
   - Extend the GID cache to store and return attributes of GIDs
   - Misc iSER updates
   - iSER clustering update
   - Network NameSpace support for rdma CM
   - Work Request cleanup series
   - New Memory Registration API"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (76 commits)
  IB/core, cma: Make __attribute_const__ declarations sparse-friendly
  IB/core: Remove old fast registration API
  IB/ipath: Remove fast registration from the code
  IB/hfi1: Remove fast registration from the code
  RDMA/nes: Remove old FRWR API
  IB/qib: Remove old FRWR API
  iw_cxgb4: Remove old FRWR API
  RDMA/cxgb3: Remove old FRWR API
  RDMA/ocrdma: Remove old FRWR API
  IB/mlx4: Remove old FRWR API support
  IB/mlx5: Remove old FRWR API support
  IB/srp: Dont allocate a page vector when using fast_reg
  IB/srp: Remove srp_finish_mapping
  IB/srp: Convert to new registration API
  IB/srp: Split srp_map_sg
  RDS/IW: Convert to new memory registration API
  svcrdma: Port to new memory registration API
  xprtrdma: Port to new memory registration API
  iser-target: Port to new memory registration API
  IB/iser: Port to new fast registration API
  ...

1 files changed, 10 insertions, 15 deletions

diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.h b/drivers/infiniband/ulp/iser/iscsi_iser.h
index a5edd6ede692..8a5998e6a407 100644
--- a/drivers/infiniband/ulp/iser/iscsi_iser.h
+++ b/drivers/infiniband/ulp/iser/iscsi_iser.h
@@ -227,18 +227,13 @@ enum iser_data_dir {
  * @size:         num entries of this sg
  * @data_len:     total beffer byte len
  * @dma_nents:    returned by dma_map_sg
- * @orig_sg:      pointer to the original sg list (in case
- *                we used a copy)
- * @orig_size:    num entris of orig sg list
  */
 struct iser_data_buf {
 	struct scatterlist *sg;
-	unsigned int       size;
+	int                size;
 	unsigned long      data_len;
 	unsigned int       dma_nents;
-	struct scatterlist *orig_sg;
-	unsigned int       orig_size;
-  };
+};
 
 /* fwd declarations */
 struct iser_device;
@@ -300,7 +295,11 @@ struct iser_tx_desc {
 	int                          num_sge;
 	bool			     mapped;
 	u8                           wr_idx;
-	struct ib_send_wr            wrs[ISER_MAX_WRS];
+	union iser_wr {
+		struct ib_send_wr		send;
+		struct ib_reg_wr		fast_reg;
+		struct ib_sig_handover_wr	sig;
+	} wrs[ISER_MAX_WRS];
 	struct iser_mem_reg          data_reg;
 	struct iser_mem_reg          prot_reg;
 	struct ib_sig_attrs          sig_attrs;
@@ -413,7 +412,6 @@ struct iser_device {
  *
  * @mr:         memory region
  * @fmr_pool:   pool of fmrs
- * @frpl:       fast reg page list used by frwrs
  * @page_vec:   fast reg page list used by fmr pool
  * @mr_valid:   is mr valid indicator
  */
@@ -422,10 +420,7 @@ struct iser_reg_resources {
 		struct ib_mr             *mr;
 		struct ib_fmr_pool       *fmr_pool;
 	};
-	union {
-		struct ib_fast_reg_page_list     *frpl;
-		struct iser_page_vec             *page_vec;
-	};
+	struct iser_page_vec             *page_vec;
 	u8				  mr_valid:1;
 };
 
@@ -712,11 +707,11 @@ iser_reg_desc_put_fmr(struct ib_conn *ib_conn,
 static inline struct ib_send_wr *
 iser_tx_next_wr(struct iser_tx_desc *tx_desc)
 {
-	struct ib_send_wr *cur_wr = &tx_desc->wrs[tx_desc->wr_idx];
+	struct ib_send_wr *cur_wr = &tx_desc->wrs[tx_desc->wr_idx].send;
 	struct ib_send_wr *last_wr;
 
 	if (tx_desc->wr_idx) {
-		last_wr = &tx_desc->wrs[tx_desc->wr_idx - 1];
+		last_wr = &tx_desc->wrs[tx_desc->wr_idx - 1].send;
 		last_wr->next = cur_wr;
 	}
 	tx_desc->wr_idx++;