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

Pull more rdma updates from Doug Ledford:
 "Items of note:

   - two patches fix a regression in the 4.15 kernel. The 4.14 kernel
     worked fine with NVMe over Fabrics and mlx5 adapters. That broke in
     4.15. The fix is here.

   - one of the patches (the endian notation patch from Lijun) looks
     like a lot of lines of change, but it's mostly mechanical in
     nature. It amounts to the biggest chunk of change in it (it's about
     2/3rds of the overall pull request).

  Summary:

   - Clean up some function signatures in rxe for clarity

   - Tidy the RDMA netlink header to remove unimplemented constants

   - bnxt_re driver fixes, one is a regression this window.

   - Minor hns driver fixes

   - Various fixes from Dan Carpenter and his tool

   - Fix IRQ cleanup race in HFI1

   - HF1 performance optimizations and a fix to report counters in the right units

   - Fix for an IPoIB startup sequence race with the external manager

   - Oops fix for the new kabi path

   - Endian cleanups for hns

   - Fix for mlx5 related to the new automatic affinity support"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (38 commits)
  net/mlx5: increase async EQ to avoid EQ overrun
  mlx5: fix mlx5_get_vector_affinity to start from completion vector 0
  RDMA/hns: Fix the endian problem for hns
  IB/uverbs: Use the standard kConfig format for experimental
  IB: Update references to libibverbs
  IB/hfi1: Add 16B rcvhdr trace support
  IB/hfi1: Convert kzalloc_node and kcalloc to use kcalloc_node
  IB/core: Avoid a potential OOPs for an unused optional parameter
  IB/core: Map iWarp AH type to undefined in rdma_ah_find_type
  IB/ipoib: Fix for potential no-carrier state
  IB/hfi1: Show fault stats in both TX and RX directions
  IB/hfi1: Remove blind constants from 16B update
  IB/hfi1: Convert PortXmitWait/PortVLXmitWait counters to flit times
  IB/hfi1: Do not override given pcie_pset value
  IB/hfi1: Optimize process_receive_ib()
  IB/hfi1: Remove unnecessary fecn and becn fields
  IB/hfi1: Look up ibport using a pointer in receive path
  IB/hfi1: Optimize packet type comparison using 9B and bypass code paths
  IB/hfi1: Compute BTH only for RDMA_WRITE_LAST/SEND_LAST packet
  IB/hfi1: Remove dependence on qp->s_hdrwords
  ...

drivers/infiniband/sw/rxe/rxe_av.c

@@ -52,28 +52,24 @@ int rxe_av_chk_attr(struct rxe_dev *rxe, struct rdma_ah_attr *attr)
 	return 0;
 }
 
-int rxe_av_from_attr(struct rxe_dev *rxe, u8 port_num,
-		     struct rxe_av *av, struct rdma_ah_attr *attr)
+void rxe_av_from_attr(u8 port_num, struct rxe_av *av,
+		     struct rdma_ah_attr *attr)
 {
 	memset(av, 0, sizeof(*av));
 	memcpy(&av->grh, rdma_ah_read_grh(attr),
 	       sizeof(*rdma_ah_read_grh(attr)));
 	av->port_num = port_num;
-	return 0;
 }
 
-int rxe_av_to_attr(struct rxe_dev *rxe, struct rxe_av *av,
-		   struct rdma_ah_attr *attr)
+void rxe_av_to_attr(struct rxe_av *av, struct rdma_ah_attr *attr)
 {
 	attr->type = RDMA_AH_ATTR_TYPE_ROCE;
 	memcpy(rdma_ah_retrieve_grh(attr), &av->grh, sizeof(av->grh));
 	rdma_ah_set_ah_flags(attr, IB_AH_GRH);
 	rdma_ah_set_port_num(attr, av->port_num);
-	return 0;
 }
 
-int rxe_av_fill_ip_info(struct rxe_dev *rxe,
-			struct rxe_av *av,
+void rxe_av_fill_ip_info(struct rxe_av *av,
 			struct rdma_ah_attr *attr,
 			struct ib_gid_attr *sgid_attr,
 			union ib_gid *sgid)
@@ -81,8 +77,6 @@ int rxe_av_fill_ip_info(struct rxe_dev *rxe,
 	rdma_gid2ip(&av->sgid_addr._sockaddr, sgid);
 	rdma_gid2ip(&av->dgid_addr._sockaddr, &rdma_ah_read_grh(attr)->dgid);
 	av->network_type = ib_gid_to_network_type(sgid_attr->gid_type, sgid);
-
-	return 0;
 }
 
 struct rxe_av *rxe_get_av(struct rxe_pkt_info *pkt)

drivers/infiniband/sw/rxe/rxe_loc.h

@@ -38,14 +38,12 @@
 
 int rxe_av_chk_attr(struct rxe_dev *rxe, struct rdma_ah_attr *attr);
 
-int rxe_av_from_attr(struct rxe_dev *rxe, u8 port_num,
-		     struct rxe_av *av, struct rdma_ah_attr *attr);
+void rxe_av_from_attr(u8 port_num, struct rxe_av *av,
+		     struct rdma_ah_attr *attr);
 
-int rxe_av_to_attr(struct rxe_dev *rxe, struct rxe_av *av,
-		   struct rdma_ah_attr *attr);
+void rxe_av_to_attr(struct rxe_av *av, struct rdma_ah_attr *attr);
 
-int rxe_av_fill_ip_info(struct rxe_dev *rxe,
-			struct rxe_av *av,
+void rxe_av_fill_ip_info(struct rxe_av *av,
 			struct rdma_ah_attr *attr,
 			struct ib_gid_attr *sgid_attr,
 			union ib_gid *sgid);

drivers/infiniband/sw/rxe/rxe_qp.c

@@ -633,9 +633,8 @@ int rxe_qp_from_attr(struct rxe_qp *qp, struct ib_qp_attr *attr, int mask,
 		ib_get_cached_gid(&rxe->ib_dev, 1,
 				  rdma_ah_read_grh(&attr->ah_attr)->sgid_index,
 				  &sgid, &sgid_attr);
-		rxe_av_from_attr(rxe, attr->port_num, &qp->pri_av,
-				 &attr->ah_attr);
-		rxe_av_fill_ip_info(rxe, &qp->pri_av, &attr->ah_attr,
+		rxe_av_from_attr(attr->port_num, &qp->pri_av, &attr->ah_attr);
+		rxe_av_fill_ip_info(&qp->pri_av, &attr->ah_attr,
 				    &sgid_attr, &sgid);
 		if (sgid_attr.ndev)
 			dev_put(sgid_attr.ndev);
@@ -648,9 +647,9 @@ int rxe_qp_from_attr(struct rxe_qp *qp, struct ib_qp_attr *attr, int mask,
 		ib_get_cached_gid(&rxe->ib_dev, 1, sgid_index,
 				  &sgid, &sgid_attr);
 
-		rxe_av_from_attr(rxe, attr->alt_port_num, &qp->alt_av,
+		rxe_av_from_attr(attr->alt_port_num, &qp->alt_av,
 				 &attr->alt_ah_attr);
-		rxe_av_fill_ip_info(rxe, &qp->alt_av, &attr->alt_ah_attr,
+		rxe_av_fill_ip_info(&qp->alt_av, &attr->alt_ah_attr,
 				    &sgid_attr, &sgid);
 		if (sgid_attr.ndev)
 			dev_put(sgid_attr.ndev);
@@ -765,8 +764,6 @@ int rxe_qp_from_attr(struct rxe_qp *qp, struct ib_qp_attr *attr, int mask,
 /* called by the query qp verb */
 int rxe_qp_to_attr(struct rxe_qp *qp, struct ib_qp_attr *attr, int mask)
 {
-	struct rxe_dev *rxe = to_rdev(qp->ibqp.device);
-
 	*attr = qp->attr;
 
 	attr->rq_psn				= qp->resp.psn;
@@ -781,8 +778,8 @@ int rxe_qp_to_attr(struct rxe_qp *qp, struct ib_qp_attr *attr, int mask)
 		attr->cap.max_recv_sge		= qp->rq.max_sge;
 	}
 
-	rxe_av_to_attr(rxe, &qp->pri_av, &attr->ah_attr);
-	rxe_av_to_attr(rxe, &qp->alt_av, &attr->alt_ah_attr);
+	rxe_av_to_attr(&qp->pri_av, &attr->ah_attr);
+	rxe_av_to_attr(&qp->alt_av, &attr->alt_ah_attr);
 
 	if (qp->req.state == QP_STATE_DRAIN) {
 		attr->sq_draining = 1;

drivers/infiniband/sw/rxe/rxe_verbs.c

@@ -271,13 +271,12 @@ static int rxe_init_av(struct rxe_dev *rxe, struct rdma_ah_attr *attr,
 		return err;
 	}
 
-	err = rxe_av_from_attr(rxe, rdma_ah_get_port_num(attr), av, attr);
-	if (!err)
-		err = rxe_av_fill_ip_info(rxe, av, attr, &sgid_attr, &sgid);
+	rxe_av_from_attr(rdma_ah_get_port_num(attr), av, attr);
+	rxe_av_fill_ip_info(av, attr, &sgid_attr, &sgid);
 
 	if (sgid_attr.ndev)
 		dev_put(sgid_attr.ndev);
-	return err;
+	return 0;
 }
 
 static struct ib_ah *rxe_create_ah(struct ib_pd *ibpd,
@@ -335,12 +334,11 @@ static int rxe_modify_ah(struct ib_ah *ibah, struct rdma_ah_attr *attr)
 
 static int rxe_query_ah(struct ib_ah *ibah, struct rdma_ah_attr *attr)
 {
-	struct rxe_dev *rxe = to_rdev(ibah->device);
 	struct rxe_ah *ah = to_rah(ibah);
 
 	memset(attr, 0, sizeof(*attr));
 	attr->type = ibah->type;
-	rxe_av_to_attr(rxe, &ah->av, attr);
+	rxe_av_to_attr(&ah->av, attr);
 	return 0;
 }