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

Pull rdma updates from Jason Gunthorpe:
 "A quiet cycle after the larger 5.8 effort. Substantially cleanup and
  driver work with a few smaller features this time.

   - Driver updates for hfi1, rxe, mlx5, hns, qedr, usnic, bnxt_re

   - Removal of dead or redundant code across the drivers

   - RAW resource tracker dumps to include a device specific data blob
     for device objects to aide device debugging

   - Further advance the IOCTL interface, remove the ability to turn it
     off. Add QUERY_CONTEXT, QUERY_MR, and QUERY_PD commands

   - Remove stubs related to devices with no pkey table

   - A shared CQ scheme to allow multiple ULPs to share the CQ rings of
     a device to give higher performance

   - Several more static checker, syzkaller and rare crashers fixed"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (121 commits)
  RDMA/mlx5: Fix flow destination setting for RDMA TX flow table
  RDMA/rxe: Remove pkey table
  RDMA/umem: Add a schedule point in ib_umem_get()
  RDMA/hns: Fix the unneeded process when getting a general type of CQE error
  RDMA/hns: Fix error during modify qp RTS2RTS
  RDMA/hns: Delete unnecessary memset when allocating VF resource
  RDMA/hns: Remove redundant parameters in set_rc_wqe()
  RDMA/hns: Remove support for HIP08_A
  RDMA/hns: Refactor hns_roce_v2_set_hem()
  RDMA/hns: Remove redundant hardware opcode definitions
  RDMA/netlink: Remove CAP_NET_RAW check when dump a raw QP
  RDMA/include: Replace license text with SPDX tags
  RDMA/rtrs: remove WQ_MEM_RECLAIM for rtrs_wq
  RDMA/rtrs-clt: add an additional random 8 seconds before reconnecting
  RDMA/cma: Execute rdma_cm destruction from a handler properly
  RDMA/cma: Remove unneeded locking for req paths
  RDMA/cma: Using the standard locking pattern when delivering the removal event
  RDMA/cma: Simplify DEVICE_REMOVAL for internal_id
  RDMA/efa: Add EFA 0xefa1 PCI ID
  RDMA/efa: User/kernel compatibility handshake mechanism
  ...

1 files changed, 28 insertions, 74 deletions

diff --git a/drivers/infiniband/hw/mlx5/devx.c b/drivers/infiniband/hw/mlx5/devx.c
index 655ea9c984e1..9e3d8b826498 100644
--- a/drivers/infiniband/hw/mlx5/devx.c
+++ b/drivers/infiniband/hw/mlx5/devx.c
@@ -14,6 +14,7 @@
 #include <linux/mlx5/driver.h>
 #include <linux/mlx5/fs.h>
 #include "mlx5_ib.h"
+#include "devx.h"
 #include "qp.h"
 #include <linux/xarray.h>
 
@@ -89,22 +90,6 @@ struct devx_async_event_file {
 	u8 is_destroyed:1;
 };
 
-#define MLX5_MAX_DESTROY_INBOX_SIZE_DW MLX5_ST_SZ_DW(delete_fte_in)
-struct devx_obj {
-	struct mlx5_ib_dev	*ib_dev;
-	u64			obj_id;
-	u32			dinlen; /* destroy inbox length */
-	u32			dinbox[MLX5_MAX_DESTROY_INBOX_SIZE_DW];
-	u32			flags;
-	union {
-		struct mlx5_ib_devx_mr	devx_mr;
-		struct mlx5_core_dct	core_dct;
-		struct mlx5_core_cq	core_cq;
-		u32			flow_counter_bulk_size;
-	};
-	struct list_head event_sub; /* holds devx_event_subscription entries */
-};
-
 struct devx_umem {
 	struct mlx5_core_dev		*mdev;
 	struct ib_umem			*umem;
@@ -171,48 +156,6 @@ void mlx5_ib_devx_destroy(struct mlx5_ib_dev *dev, u16 uid)
 	mlx5_cmd_exec(dev->mdev, in, sizeof(in), out, sizeof(out));
 }
 
-bool mlx5_ib_devx_is_flow_dest(void *obj, int *dest_id, int *dest_type)
-{
-	struct devx_obj *devx_obj = obj;
-	u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, devx_obj->dinbox, opcode);
-
-	switch (opcode) {
-	case MLX5_CMD_OP_DESTROY_TIR:
-		*dest_type = MLX5_FLOW_DESTINATION_TYPE_TIR;
-		*dest_id = MLX5_GET(general_obj_in_cmd_hdr, devx_obj->dinbox,
-				    obj_id);
-		return true;
-
-	case MLX5_CMD_OP_DESTROY_FLOW_TABLE:
-		*dest_type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
-		*dest_id = MLX5_GET(destroy_flow_table_in, devx_obj->dinbox,
-				    table_id);
-		return true;
-	default:
-		return false;
-	}
-}
-
-bool mlx5_ib_devx_is_flow_counter(void *obj, u32 offset, u32 *counter_id)
-{
-	struct devx_obj *devx_obj = obj;
-	u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, devx_obj->dinbox, opcode);
-
-	if (opcode == MLX5_CMD_OP_DEALLOC_FLOW_COUNTER) {
-
-		if (offset && offset >= devx_obj->flow_counter_bulk_size)
-			return false;
-
-		*counter_id = MLX5_GET(dealloc_flow_counter_in,
-				       devx_obj->dinbox,
-				       flow_counter_id);
-		*counter_id += offset;
-		return true;
-	}
-
-	return false;
-}
-
 static bool is_legacy_unaffiliated_event_num(u16 event_num)
 {
 	switch (event_num) {
@@ -2419,17 +2362,24 @@ static int devx_event_notifier(struct notifier_block *nb,
 	return NOTIFY_OK;
 }
 
-void mlx5_ib_devx_init_event_table(struct mlx5_ib_dev *dev)
+int mlx5_ib_devx_init(struct mlx5_ib_dev *dev)
 {
 	struct mlx5_devx_event_table *table = &dev->devx_event_table;
+	int uid;
 
-	xa_init(&table->event_xa);
-	mutex_init(&table->event_xa_lock);
-	MLX5_NB_INIT(&table->devx_nb, devx_event_notifier, NOTIFY_ANY);
-	mlx5_eq_notifier_register(dev->mdev, &table->devx_nb);
+	uid = mlx5_ib_devx_create(dev, false);
+	if (uid > 0) {
+		dev->devx_whitelist_uid = uid;
+		xa_init(&table->event_xa);
+		mutex_init(&table->event_xa_lock);
+		MLX5_NB_INIT(&table->devx_nb, devx_event_notifier, NOTIFY_ANY);
+		mlx5_eq_notifier_register(dev->mdev, &table->devx_nb);
+	}
+
+	return 0;
 }
 
-void mlx5_ib_devx_cleanup_event_table(struct mlx5_ib_dev *dev)
+void mlx5_ib_devx_cleanup(struct mlx5_ib_dev *dev)
 {
 	struct mlx5_devx_event_table *table = &dev->devx_event_table;
 	struct devx_event_subscription *sub, *tmp;
@@ -2437,17 +2387,21 @@ void mlx5_ib_devx_cleanup_event_table(struct mlx5_ib_dev *dev)
 	void *entry;
 	unsigned long id;
 
-	mlx5_eq_notifier_unregister(dev->mdev, &table->devx_nb);
-	mutex_lock(&dev->devx_event_table.event_xa_lock);
-	xa_for_each(&table->event_xa, id, entry) {
-		event = entry;
-		list_for_each_entry_safe(sub, tmp, &event->unaffiliated_list,
-					 xa_list)
-			devx_cleanup_subscription(dev, sub);
-		kfree(entry);
+	if (dev->devx_whitelist_uid) {
+		mlx5_eq_notifier_unregister(dev->mdev, &table->devx_nb);
+		mutex_lock(&dev->devx_event_table.event_xa_lock);
+		xa_for_each(&table->event_xa, id, entry) {
+			event = entry;
+			list_for_each_entry_safe(
+				sub, tmp, &event->unaffiliated_list, xa_list)
+				devx_cleanup_subscription(dev, sub);
+			kfree(entry);
+		}
+		mutex_unlock(&dev->devx_event_table.event_xa_lock);
+		xa_destroy(&table->event_xa);
+
+		mlx5_ib_devx_destroy(dev, dev->devx_whitelist_uid);
 	}
-	mutex_unlock(&dev->devx_event_table.event_xa_lock);
-	xa_destroy(&table->event_xa);
 }
 
 static ssize_t devx_async_cmd_event_read(struct file *filp, char __user *buf,