diff options
Diffstat (limited to 'drivers/infiniband/hw/mlx5/cmd.c')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/cmd.c | 101 | 
1 files changed, 0 insertions, 101 deletions
| diff --git a/drivers/infiniband/hw/mlx5/cmd.c b/drivers/infiniband/hw/mlx5/cmd.c index 234f29912ba9..a8db8a051170 100644 --- a/drivers/infiniband/hw/mlx5/cmd.c +++ b/drivers/infiniband/hw/mlx5/cmd.c @@ -47,107 +47,6 @@ int mlx5_cmd_query_cong_params(struct mlx5_core_dev *dev, int cong_point,  	return mlx5_cmd_exec_inout(dev, query_cong_params, in, out);  } -int mlx5_cmd_alloc_memic(struct mlx5_dm *dm, phys_addr_t *addr, -			 u64 length, u32 alignment) -{ -	struct mlx5_core_dev *dev = dm->dev; -	u64 num_memic_hw_pages = MLX5_CAP_DEV_MEM(dev, memic_bar_size) -					>> PAGE_SHIFT; -	u64 hw_start_addr = MLX5_CAP64_DEV_MEM(dev, memic_bar_start_addr); -	u32 max_alignment = MLX5_CAP_DEV_MEM(dev, log_max_memic_addr_alignment); -	u32 num_pages = DIV_ROUND_UP(length, PAGE_SIZE); -	u32 out[MLX5_ST_SZ_DW(alloc_memic_out)] = {}; -	u32 in[MLX5_ST_SZ_DW(alloc_memic_in)] = {}; -	u32 mlx5_alignment; -	u64 page_idx = 0; -	int ret = 0; - -	if (!length || (length & MLX5_MEMIC_ALLOC_SIZE_MASK)) -		return -EINVAL; - -	/* mlx5 device sets alignment as 64*2^driver_value -	 * so normalizing is needed. -	 */ -	mlx5_alignment = (alignment < MLX5_MEMIC_BASE_ALIGN) ? 0 : -			 alignment - MLX5_MEMIC_BASE_ALIGN; -	if (mlx5_alignment > max_alignment) -		return -EINVAL; - -	MLX5_SET(alloc_memic_in, in, opcode, MLX5_CMD_OP_ALLOC_MEMIC); -	MLX5_SET(alloc_memic_in, in, range_size, num_pages * PAGE_SIZE); -	MLX5_SET(alloc_memic_in, in, memic_size, length); -	MLX5_SET(alloc_memic_in, in, log_memic_addr_alignment, -		 mlx5_alignment); - -	while (page_idx < num_memic_hw_pages) { -		spin_lock(&dm->lock); -		page_idx = bitmap_find_next_zero_area(dm->memic_alloc_pages, -						      num_memic_hw_pages, -						      page_idx, -						      num_pages, 0); - -		if (page_idx < num_memic_hw_pages) -			bitmap_set(dm->memic_alloc_pages, -				   page_idx, num_pages); - -		spin_unlock(&dm->lock); - -		if (page_idx >= num_memic_hw_pages) -			break; - -		MLX5_SET64(alloc_memic_in, in, range_start_addr, -			   hw_start_addr + (page_idx * PAGE_SIZE)); - -		ret = mlx5_cmd_exec_inout(dev, alloc_memic, in, out); -		if (ret) { -			spin_lock(&dm->lock); -			bitmap_clear(dm->memic_alloc_pages, -				     page_idx, num_pages); -			spin_unlock(&dm->lock); - -			if (ret == -EAGAIN) { -				page_idx++; -				continue; -			} - -			return ret; -		} - -		*addr = dev->bar_addr + -			MLX5_GET64(alloc_memic_out, out, memic_start_addr); - -		return 0; -	} - -	return -ENOMEM; -} - -void mlx5_cmd_dealloc_memic(struct mlx5_dm *dm, phys_addr_t addr, u64 length) -{ -	struct mlx5_core_dev *dev = dm->dev; -	u64 hw_start_addr = MLX5_CAP64_DEV_MEM(dev, memic_bar_start_addr); -	u32 num_pages = DIV_ROUND_UP(length, PAGE_SIZE); -	u32 in[MLX5_ST_SZ_DW(dealloc_memic_in)] = {}; -	u64 start_page_idx; -	int err; - -	addr -= dev->bar_addr; -	start_page_idx = (addr - hw_start_addr) >> PAGE_SHIFT; - -	MLX5_SET(dealloc_memic_in, in, opcode, MLX5_CMD_OP_DEALLOC_MEMIC); -	MLX5_SET64(dealloc_memic_in, in, memic_start_addr, addr); -	MLX5_SET(dealloc_memic_in, in, memic_size, length); - -	err =  mlx5_cmd_exec_in(dev, dealloc_memic, in); -	if (err) -		return; - -	spin_lock(&dm->lock); -	bitmap_clear(dm->memic_alloc_pages, -		     start_page_idx, num_pages); -	spin_unlock(&dm->lock); -} -  void mlx5_cmd_destroy_tir(struct mlx5_core_dev *dev, u32 tirn, u16 uid)  {  	u32 in[MLX5_ST_SZ_DW(destroy_tir_in)] = {}; | 
