Merge branch 'mlx5-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux

Merge mlx5-next patches needed for upcoming mlx5 software steering.

1) Alex adds HW bits and definitions required for SW steering
2) Ariel moves device memory management to mlx5_core (From mlx5_ib)
3) Maor, Cleanups and fixups for eswitch mode and RoCE
4) Mark, Set only stag for match untagged packets

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

drivers/infiniband/hw/mlx5/cmd.c

@@ -186,136 +186,6 @@ int mlx5_cmd_dealloc_memic(struct mlx5_dm *dm, phys_addr_t addr, u64 length)
 	return err;
 }
 
-int mlx5_cmd_alloc_sw_icm(struct mlx5_dm *dm, int type, u64 length,
-			  u16 uid, phys_addr_t *addr, u32 *obj_id)
-{
-	struct mlx5_core_dev *dev = dm->dev;
-	u32 out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)] = {};
-	u32 in[MLX5_ST_SZ_DW(create_sw_icm_in)] = {};
-	unsigned long *block_map;
-	u64 icm_start_addr;
-	u32 log_icm_size;
-	u32 num_blocks;
-	u32 max_blocks;
-	u64 block_idx;
-	void *sw_icm;
-	int ret;
-
-	MLX5_SET(general_obj_in_cmd_hdr, in, opcode,
-		 MLX5_CMD_OP_CREATE_GENERAL_OBJECT);
-	MLX5_SET(general_obj_in_cmd_hdr, in, obj_type, MLX5_OBJ_TYPE_SW_ICM);
-	MLX5_SET(general_obj_in_cmd_hdr, in, uid, uid);
-
-	switch (type) {
-	case MLX5_IB_UAPI_DM_TYPE_STEERING_SW_ICM:
-		icm_start_addr = MLX5_CAP64_DEV_MEM(dev,
-						steering_sw_icm_start_address);
-		log_icm_size = MLX5_CAP_DEV_MEM(dev, log_steering_sw_icm_size);
-		block_map = dm->steering_sw_icm_alloc_blocks;
-		break;
-	case MLX5_IB_UAPI_DM_TYPE_HEADER_MODIFY_SW_ICM:
-		icm_start_addr = MLX5_CAP64_DEV_MEM(dev,
-					header_modify_sw_icm_start_address);
-		log_icm_size = MLX5_CAP_DEV_MEM(dev,
-						log_header_modify_sw_icm_size);
-		block_map = dm->header_modify_sw_icm_alloc_blocks;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	num_blocks = (length + MLX5_SW_ICM_BLOCK_SIZE(dev) - 1) >>
-		     MLX5_LOG_SW_ICM_BLOCK_SIZE(dev);
-	max_blocks = BIT(log_icm_size - MLX5_LOG_SW_ICM_BLOCK_SIZE(dev));
-	spin_lock(&dm->lock);
-	block_idx = bitmap_find_next_zero_area(block_map,
-					       max_blocks,
-					       0,
-					       num_blocks, 0);
-
-	if (block_idx < max_blocks)
-		bitmap_set(block_map,
-			   block_idx, num_blocks);
-
-	spin_unlock(&dm->lock);
-
-	if (block_idx >= max_blocks)
-		return -ENOMEM;
-
-	sw_icm = MLX5_ADDR_OF(create_sw_icm_in, in, sw_icm);
-	icm_start_addr += block_idx << MLX5_LOG_SW_ICM_BLOCK_SIZE(dev);
-	MLX5_SET64(sw_icm, sw_icm, sw_icm_start_addr,
-		   icm_start_addr);
-	MLX5_SET(sw_icm, sw_icm, log_sw_icm_size, ilog2(length));
-
-	ret = mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
-	if (ret) {
-		spin_lock(&dm->lock);
-		bitmap_clear(block_map,
-			     block_idx, num_blocks);
-		spin_unlock(&dm->lock);
-
-		return ret;
-	}
-
-	*addr = icm_start_addr;
-	*obj_id = MLX5_GET(general_obj_out_cmd_hdr, out, obj_id);
-
-	return 0;
-}
-
-int mlx5_cmd_dealloc_sw_icm(struct mlx5_dm *dm, int type, u64 length,
-			    u16 uid, phys_addr_t addr, u32 obj_id)
-{
-	struct mlx5_core_dev *dev = dm->dev;
-	u32 out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)] = {};
-	u32 in[MLX5_ST_SZ_DW(general_obj_in_cmd_hdr)] = {};
-	unsigned long *block_map;
-	u32 num_blocks;
-	u64 start_idx;
-	int err;
-
-	num_blocks = (length + MLX5_SW_ICM_BLOCK_SIZE(dev) - 1) >>
-		     MLX5_LOG_SW_ICM_BLOCK_SIZE(dev);
-
-	switch (type) {
-	case MLX5_IB_UAPI_DM_TYPE_STEERING_SW_ICM:
-		start_idx =
-			(addr - MLX5_CAP64_DEV_MEM(
-					dev, steering_sw_icm_start_address)) >>
-			MLX5_LOG_SW_ICM_BLOCK_SIZE(dev);
-		block_map = dm->steering_sw_icm_alloc_blocks;
-		break;
-	case MLX5_IB_UAPI_DM_TYPE_HEADER_MODIFY_SW_ICM:
-		start_idx =
-			(addr -
-			 MLX5_CAP64_DEV_MEM(
-				 dev, header_modify_sw_icm_start_address)) >>
-			MLX5_LOG_SW_ICM_BLOCK_SIZE(dev);
-		block_map = dm->header_modify_sw_icm_alloc_blocks;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	MLX5_SET(general_obj_in_cmd_hdr, in, opcode,
-		 MLX5_CMD_OP_DESTROY_GENERAL_OBJECT);
-	MLX5_SET(general_obj_in_cmd_hdr, in, obj_type, MLX5_OBJ_TYPE_SW_ICM);
-	MLX5_SET(general_obj_in_cmd_hdr, in, obj_id, obj_id);
-	MLX5_SET(general_obj_in_cmd_hdr, in, uid, uid);
-
-	err =  mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
-	if (err)
-		return err;
-
-	spin_lock(&dm->lock);
-	bitmap_clear(block_map,
-		     start_idx, num_blocks);
-	spin_unlock(&dm->lock);
-
-	return 0;
-}
-
 int mlx5_cmd_query_ext_ppcnt_counters(struct mlx5_core_dev *dev, void *out)
 {
 	u32 in[MLX5_ST_SZ_DW(ppcnt_reg)] = {};

drivers/infiniband/hw/mlx5/cmd.h

@@ -65,8 +65,4 @@ int mlx5_cmd_alloc_q_counter(struct mlx5_core_dev *dev, u16 *counter_id,
 			     u16 uid);
 int mlx5_cmd_mad_ifc(struct mlx5_core_dev *dev, const void *inb, void *outb,
 		     u16 opmod, u8 port);
-int mlx5_cmd_alloc_sw_icm(struct mlx5_dm *dm, int type, u64 length,
-			  u16 uid, phys_addr_t *addr, u32 *obj_id);
-int mlx5_cmd_dealloc_sw_icm(struct mlx5_dm *dm, int type, u64 length,
-			    u16 uid, phys_addr_t addr, u32 obj_id);
 #endif /* MLX5_IB_CMD_H */

drivers/infiniband/hw/mlx5/main.c

@@ -2280,6 +2280,7 @@ static inline int check_dm_type_support(struct mlx5_ib_dev *dev,
 			return -EOPNOTSUPP;
 		break;
 	case MLX5_IB_UAPI_DM_TYPE_STEERING_SW_ICM:
+	case MLX5_IB_UAPI_DM_TYPE_HEADER_MODIFY_SW_ICM:
 		if (!capable(CAP_SYS_RAWIO) ||
 		    !capable(CAP_NET_RAW))
 			return -EPERM;
@@ -2344,20 +2345,20 @@ static int handle_alloc_dm_sw_icm(struct ib_ucontext *ctx,
 				  struct uverbs_attr_bundle *attrs,
 				  int type)
 {
-	struct mlx5_dm *dm_db = &to_mdev(ctx->device)->dm;
+	struct mlx5_core_dev *dev = to_mdev(ctx->device)->mdev;
 	u64 act_size;
 	int err;
 
 	/* Allocation size must a multiple of the basic block size
 	 * and a power of 2.
 	 */
-	act_size = round_up(attr->length, MLX5_SW_ICM_BLOCK_SIZE(dm_db->dev));
+	act_size = round_up(attr->length, MLX5_SW_ICM_BLOCK_SIZE(dev));
 	act_size = roundup_pow_of_two(act_size);
 
 	dm->size = act_size;
-	err = mlx5_cmd_alloc_sw_icm(dm_db, type, act_size,
-				    to_mucontext(ctx)->devx_uid, &dm->dev_addr,
-				    &dm->icm_dm.obj_id);
+	err = mlx5_dm_sw_icm_alloc(dev, type, act_size,
+				   to_mucontext(ctx)->devx_uid, &dm->dev_addr,
+				   &dm->icm_dm.obj_id);
 	if (err)
 		return err;
 
@@ -2365,9 +2366,9 @@ static int handle_alloc_dm_sw_icm(struct ib_ucontext *ctx,
 			     MLX5_IB_ATTR_ALLOC_DM_RESP_START_OFFSET,
 			     &dm->dev_addr, sizeof(dm->dev_addr));
 	if (err)
-		mlx5_cmd_dealloc_sw_icm(dm_db, type, dm->size,
-					to_mucontext(ctx)->devx_uid,
-					dm->dev_addr, dm->icm_dm.obj_id);
+		mlx5_dm_sw_icm_dealloc(dev, type, dm->size,
+				       to_mucontext(ctx)->devx_uid, dm->dev_addr,
+				       dm->icm_dm.obj_id);
 
 	return err;
 }
@@ -2407,8 +2408,14 @@ struct ib_dm *mlx5_ib_alloc_dm(struct ib_device *ibdev,
 					    attrs);
 		break;
 	case MLX5_IB_UAPI_DM_TYPE_STEERING_SW_ICM:
+		err = handle_alloc_dm_sw_icm(context, dm,
+					     attr, attrs,
+					     MLX5_SW_ICM_TYPE_STEERING);
+		break;
 	case MLX5_IB_UAPI_DM_TYPE_HEADER_MODIFY_SW_ICM:
-		err = handle_alloc_dm_sw_icm(context, dm, attr, attrs, type);
+		err = handle_alloc_dm_sw_icm(context, dm,
+					     attr, attrs,
+					     MLX5_SW_ICM_TYPE_HEADER_MODIFY);
 		break;
 	default:
 		err = -EOPNOTSUPP;
@@ -2428,6 +2435,7 @@ int mlx5_ib_dealloc_dm(struct ib_dm *ibdm, struct uverbs_attr_bundle *attrs)
 {
 	struct mlx5_ib_ucontext *ctx = rdma_udata_to_drv_context(
 		&attrs->driver_udata, struct mlx5_ib_ucontext, ibucontext);
+	struct mlx5_core_dev *dev = to_mdev(ibdm->device)->mdev;
 	struct mlx5_dm *dm_db = &to_mdev(ibdm->device)->dm;
 	struct mlx5_ib_dm *dm = to_mdm(ibdm);
 	u32 page_idx;
@@ -2439,19 +2447,23 @@ int mlx5_ib_dealloc_dm(struct ib_dm *ibdm, struct uverbs_attr_bundle *attrs)
 		if (ret)
 			return ret;
 
-		page_idx = (dm->dev_addr -
-			    pci_resource_start(dm_db->dev->pdev, 0) -
-			    MLX5_CAP64_DEV_MEM(dm_db->dev,
-					       memic_bar_start_addr)) >>
-			   PAGE_SHIFT;
+		page_idx = (dm->dev_addr - pci_resource_start(dev->pdev, 0) -
+			    MLX5_CAP64_DEV_MEM(dev, memic_bar_start_addr)) >>
+			    PAGE_SHIFT;
 		bitmap_clear(ctx->dm_pages, page_idx,
 			     DIV_ROUND_UP(dm->size, PAGE_SIZE));
 		break;
 	case MLX5_IB_UAPI_DM_TYPE_STEERING_SW_ICM:
+		ret = mlx5_dm_sw_icm_dealloc(dev, MLX5_SW_ICM_TYPE_STEERING,
+					     dm->size, ctx->devx_uid, dm->dev_addr,
+					     dm->icm_dm.obj_id);
+		if (ret)
+			return ret;
+		break;
 	case MLX5_IB_UAPI_DM_TYPE_HEADER_MODIFY_SW_ICM:
-		ret = mlx5_cmd_dealloc_sw_icm(dm_db, dm->type, dm->size,
-					      ctx->devx_uid, dm->dev_addr,
-					      dm->icm_dm.obj_id);
+		ret = mlx5_dm_sw_icm_dealloc(dev, MLX5_SW_ICM_TYPE_HEADER_MODIFY,
+					     dm->size, ctx->devx_uid, dm->dev_addr,
+					     dm->icm_dm.obj_id);
 		if (ret)
 			return ret;
 		break;
@@ -6096,8 +6108,6 @@ static struct ib_counters *mlx5_ib_create_counters(struct ib_device *device,
 
 static void mlx5_ib_stage_init_cleanup(struct mlx5_ib_dev *dev)
 {
-	struct mlx5_core_dev *mdev = dev->mdev;
-
 	mlx5_ib_cleanup_multiport_master(dev);
 	if (IS_ENABLED(CONFIG_INFINIBAND_ON_DEMAND_PAGING)) {
 		srcu_barrier(&dev->mr_srcu);
@@ -6105,29 +6115,11 @@ static void mlx5_ib_stage_init_cleanup(struct mlx5_ib_dev *dev)
 	}
 
 	WARN_ON(!bitmap_empty(dev->dm.memic_alloc_pages, MLX5_MAX_MEMIC_PAGES));
-
-	WARN_ON(dev->dm.steering_sw_icm_alloc_blocks &&
-		!bitmap_empty(
-			dev->dm.steering_sw_icm_alloc_blocks,
-			BIT(MLX5_CAP_DEV_MEM(mdev, log_steering_sw_icm_size) -
-			    MLX5_LOG_SW_ICM_BLOCK_SIZE(mdev))));
-
-	kfree(dev->dm.steering_sw_icm_alloc_blocks);
-
-	WARN_ON(dev->dm.header_modify_sw_icm_alloc_blocks &&
-		!bitmap_empty(dev->dm.header_modify_sw_icm_alloc_blocks,
-			      BIT(MLX5_CAP_DEV_MEM(
-					  mdev, log_header_modify_sw_icm_size) -
-				  MLX5_LOG_SW_ICM_BLOCK_SIZE(mdev))));
-
-	kfree(dev->dm.header_modify_sw_icm_alloc_blocks);
 }
 
 static int mlx5_ib_stage_init_init(struct mlx5_ib_dev *dev)
 {
 	struct mlx5_core_dev *mdev = dev->mdev;
-	u64 header_modify_icm_blocks = 0;
-	u64 steering_icm_blocks = 0;
 	int err;
 	int i;
 
@@ -6174,51 +6166,17 @@ static int mlx5_ib_stage_init_init(struct mlx5_ib_dev *dev)
 	INIT_LIST_HEAD(&dev->qp_list);
 	spin_lock_init(&dev->reset_flow_resource_lock);
 
-	if (MLX5_CAP_GEN_64(mdev, general_obj_types) &
-	    MLX5_GENERAL_OBJ_TYPES_CAP_SW_ICM) {
-		if (MLX5_CAP64_DEV_MEM(mdev, steering_sw_icm_start_address)) {
-			steering_icm_blocks =
-				BIT(MLX5_CAP_DEV_MEM(mdev,
-						     log_steering_sw_icm_size) -
-				    MLX5_LOG_SW_ICM_BLOCK_SIZE(mdev));
-
-			dev->dm.steering_sw_icm_alloc_blocks =
-				kcalloc(BITS_TO_LONGS(steering_icm_blocks),
-					sizeof(unsigned long), GFP_KERNEL);
-			if (!dev->dm.steering_sw_icm_alloc_blocks)
-				goto err_mp;
-		}
-
-		if (MLX5_CAP64_DEV_MEM(mdev,
-				       header_modify_sw_icm_start_address)) {
-			header_modify_icm_blocks = BIT(
-				MLX5_CAP_DEV_MEM(
-					mdev, log_header_modify_sw_icm_size) -
-				MLX5_LOG_SW_ICM_BLOCK_SIZE(mdev));
-
-			dev->dm.header_modify_sw_icm_alloc_blocks =
-				kcalloc(BITS_TO_LONGS(header_modify_icm_blocks),
-					sizeof(unsigned long), GFP_KERNEL);
-			if (!dev->dm.header_modify_sw_icm_alloc_blocks)
-				goto err_dm;
-		}
-	}
-
 	spin_lock_init(&dev->dm.lock);
 	dev->dm.dev = mdev;
 
 	if (IS_ENABLED(CONFIG_INFINIBAND_ON_DEMAND_PAGING)) {
 		err = init_srcu_struct(&dev->mr_srcu);
 		if (err)
-			goto err_dm;
+			goto err_mp;
 	}
 
 	return 0;
 
-err_dm:
-	kfree(dev->dm.steering_sw_icm_alloc_blocks);
-	kfree(dev->dm.header_modify_sw_icm_alloc_blocks);
-
 err_mp:
 	mlx5_ib_cleanup_multiport_master(dev);
 

drivers/infiniband/hw/mlx5/mlx5_ib.h

@@ -881,8 +881,6 @@ struct mlx5_dm {
 	 */
 	spinlock_t lock;
 	DECLARE_BITMAP(memic_alloc_pages, MLX5_MAX_MEMIC_PAGES);
-	unsigned long *steering_sw_icm_alloc_blocks;
-	unsigned long *header_modify_sw_icm_alloc_blocks;
 };
 
 struct mlx5_read_counters_attr {