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

Pull rdma updates from Jason Gunthorpe:
 "This has been a slightly more active cycle than normal with ongoing
  core changes and quite a lot of collected driver updates.

   - Various driver fixes for bnxt_re, cxgb4, hns, mlx5, pvrdma, rxe

   - A new data transfer mode for HFI1 giving higher performance

   - Significant functional and bug fix update to the mlx5
     On-Demand-Paging MR feature

   - A chip hang reset recovery system for hns

   - Change mm->pinned_vm to an atomic64

   - Update bnxt_re to support a new 57500 chip

   - A sane netlink 'rdma link add' method for creating rxe devices and
     fixing the various unregistration race conditions in rxe's
     unregister flow

   - Allow lookup up objects by an ID over netlink

   - Various reworking of the core to driver interface:
       - drivers should not assume umem SGLs are in PAGE_SIZE chunks
       - ucontext is accessed via udata not other means
       - start to make the core code responsible for object memory
         allocation
       - drivers should convert struct device to struct ib_device via a
         helper
       - drivers have more tools to avoid use after unregister problems"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (280 commits)
  net/mlx5: ODP support for XRC transport is not enabled by default in FW
  IB/hfi1: Close race condition on user context disable and close
  RDMA/umem: Revert broken 'off by one' fix
  RDMA/umem: minor bug fix in error handling path
  RDMA/hns: Use GFP_ATOMIC in hns_roce_v2_modify_qp
  cxgb4: kfree mhp after the debug print
  IB/rdmavt: Fix concurrency panics in QP post_send and modify to error
  IB/rdmavt: Fix loopback send with invalidate ordering
  IB/iser: Fix dma_nents type definition
  IB/mlx5: Set correct write permissions for implicit ODP MR
  bnxt_re: Clean cq for kernel consumers only
  RDMA/uverbs: Don't do double free of allocated PD
  RDMA: Handle ucontext allocations by IB/core
  RDMA/core: Fix a WARN() message
  bnxt_re: fix the regression due to changes in alloc_pbl
  IB/mlx4: Increase the timeout for CM cache
  IB/core: Abort page fault handler silently during owning process exit
  IB/mlx5: Validate correct PD before prefetch MR
  IB/mlx5: Protect against prefetch of invalid MR
  RDMA/uverbs: Store PR pointer before it is overwritten
  ...

net/rds/ib.h

@@ -333,10 +333,8 @@ static inline void rds_ib_dma_sync_sg_for_cpu(struct ib_device *dev,
 	unsigned int i;
 
 	for_each_sg(sglist, sg, sg_dma_len, i) {
-		ib_dma_sync_single_for_cpu(dev,
-				ib_sg_dma_address(dev, sg),
-				ib_sg_dma_len(dev, sg),
-				direction);
+		ib_dma_sync_single_for_cpu(dev, sg_dma_address(sg),
+					   sg_dma_len(sg), direction);
 	}
 }
 #define ib_dma_sync_sg_for_cpu	rds_ib_dma_sync_sg_for_cpu
@@ -350,10 +348,8 @@ static inline void rds_ib_dma_sync_sg_for_device(struct ib_device *dev,
 	unsigned int i;
 
 	for_each_sg(sglist, sg, sg_dma_len, i) {
-		ib_dma_sync_single_for_device(dev,
-				ib_sg_dma_address(dev, sg),
-				ib_sg_dma_len(dev, sg),
-				direction);
+		ib_dma_sync_single_for_device(dev, sg_dma_address(sg),
+					      sg_dma_len(sg), direction);
 	}
 }
 #define ib_dma_sync_sg_for_device	rds_ib_dma_sync_sg_for_device

net/rds/ib_fmr.c

@@ -108,8 +108,8 @@ static int rds_ib_map_fmr(struct rds_ib_device *rds_ibdev,
 	page_cnt = 0;
 
 	for (i = 0; i < sg_dma_len; ++i) {
-		unsigned int dma_len = ib_sg_dma_len(dev, &scat[i]);
-		u64 dma_addr = ib_sg_dma_address(dev, &scat[i]);
+		unsigned int dma_len = sg_dma_len(&scat[i]);
+		u64 dma_addr = sg_dma_address(&scat[i]);
 
 		if (dma_addr & ~PAGE_MASK) {
 			if (i > 0) {
@@ -148,8 +148,8 @@ static int rds_ib_map_fmr(struct rds_ib_device *rds_ibdev,
 
 	page_cnt = 0;
 	for (i = 0; i < sg_dma_len; ++i) {
-		unsigned int dma_len = ib_sg_dma_len(dev, &scat[i]);
-		u64 dma_addr = ib_sg_dma_address(dev, &scat[i]);
+		unsigned int dma_len = sg_dma_len(&scat[i]);
+		u64 dma_addr = sg_dma_address(&scat[i]);
 
 		for (j = 0; j < dma_len; j += PAGE_SIZE)
 			dma_pages[page_cnt++] =

net/rds/ib_frmr.c

@@ -181,8 +181,8 @@ static int rds_ib_map_frmr(struct rds_ib_device *rds_ibdev,
 
 	ret = -EINVAL;
 	for (i = 0; i < ibmr->sg_dma_len; ++i) {
-		unsigned int dma_len = ib_sg_dma_len(dev, &ibmr->sg[i]);
-		u64 dma_addr = ib_sg_dma_address(dev, &ibmr->sg[i]);
+		unsigned int dma_len = sg_dma_len(&ibmr->sg[i]);
+		u64 dma_addr = sg_dma_address(&ibmr->sg[i]);
 
 		frmr->sg_byte_len += dma_len;
 		if (dma_addr & ~PAGE_MASK) {

net/rds/ib_recv.c

@@ -346,8 +346,8 @@ static int rds_ib_recv_refill_one(struct rds_connection *conn,
 	sge->length = sizeof(struct rds_header);
 
 	sge = &recv->r_sge[1];
-	sge->addr = ib_sg_dma_address(ic->i_cm_id->device, &recv->r_frag->f_sg);
-	sge->length = ib_sg_dma_len(ic->i_cm_id->device, &recv->r_frag->f_sg);
+	sge->addr = sg_dma_address(&recv->r_frag->f_sg);
+	sge->length = sg_dma_len(&recv->r_frag->f_sg);
 
 	ret = 0;
 out:
@@ -409,9 +409,7 @@ void rds_ib_recv_refill(struct rds_connection *conn, int prefill, gfp_t gfp)
 
 		rdsdebug("recv %p ibinc %p page %p addr %lu\n", recv,
 			 recv->r_ibinc, sg_page(&recv->r_frag->f_sg),
-			 (long) ib_sg_dma_address(
-				ic->i_cm_id->device,
-				&recv->r_frag->f_sg));
+			 (long)sg_dma_address(&recv->r_frag->f_sg));
 
 		/* XXX when can this fail? */
 		ret = ib_post_recv(ic->i_cm_id->qp, &recv->r_wr, NULL);

net/rds/ib_send.c

@@ -646,16 +646,16 @@ int rds_ib_xmit(struct rds_connection *conn, struct rds_message *rm,
 		if (i < work_alloc
 		    && scat != &rm->data.op_sg[rm->data.op_count]) {
 			len = min(RDS_FRAG_SIZE,
-				ib_sg_dma_len(dev, scat) - rm->data.op_dmaoff);
+				  sg_dma_len(scat) - rm->data.op_dmaoff);
 			send->s_wr.num_sge = 2;
 
-			send->s_sge[1].addr = ib_sg_dma_address(dev, scat);
+			send->s_sge[1].addr = sg_dma_address(scat);
 			send->s_sge[1].addr += rm->data.op_dmaoff;
 			send->s_sge[1].length = len;
 
 			bytes_sent += len;
 			rm->data.op_dmaoff += len;
-			if (rm->data.op_dmaoff == ib_sg_dma_len(dev, scat)) {
+			if (rm->data.op_dmaoff == sg_dma_len(scat)) {
 				scat++;
 				rm->data.op_dmasg++;
 				rm->data.op_dmaoff = 0;
@@ -809,8 +809,8 @@ int rds_ib_xmit_atomic(struct rds_connection *conn, struct rm_atomic_op *op)
 	}
 
 	/* Convert our struct scatterlist to struct ib_sge */
-	send->s_sge[0].addr = ib_sg_dma_address(ic->i_cm_id->device, op->op_sg);
-	send->s_sge[0].length = ib_sg_dma_len(ic->i_cm_id->device, op->op_sg);
+	send->s_sge[0].addr = sg_dma_address(op->op_sg);
+	send->s_sge[0].length = sg_dma_len(op->op_sg);
 	send->s_sge[0].lkey = ic->i_pd->local_dma_lkey;
 
 	rdsdebug("rva %Lx rpa %Lx len %u\n", op->op_remote_addr,
@@ -922,9 +922,8 @@ int rds_ib_xmit_rdma(struct rds_connection *conn, struct rm_rdma_op *op)
 
 		for (j = 0; j < send->s_rdma_wr.wr.num_sge &&
 		     scat != &op->op_sg[op->op_count]; j++) {
-			len = ib_sg_dma_len(ic->i_cm_id->device, scat);
-			send->s_sge[j].addr =
-				 ib_sg_dma_address(ic->i_cm_id->device, scat);
+			len = sg_dma_len(scat);
+			send->s_sge[j].addr = sg_dma_address(scat);
 			send->s_sge[j].length = len;
 			send->s_sge[j].lkey = ic->i_pd->local_dma_lkey;