diff options
| author | Eran Ben Elisha <eranbe@mellanox.com> | 2020-03-30 14:27:08 +0300 |
|---|---|---|
| committer | Saeed Mahameed <saeedm@mellanox.com> | 2020-04-30 10:10:44 -0700 |
| commit | c655c1f46957eb4f30221c52580e38f85058e167 (patch) | |
| tree | 6cdabff70f9cdc783b19e7570d93ae650217e0d4 /drivers/net | |
| parent | 51dde00b8fb3cf07e577be6aa4d98ee1f34b84be (diff) | |
| download | linux-c655c1f46957eb4f30221c52580e38f85058e167.tar.bz2 | |
net/mlx5: Add helper function to release fw page
Factor out the fwp address release page to an helper function, will be
used in the downstream patch.
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Reviewed-by: Moshe Shemesh <moshe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c | 30 |
1 files changed, 17 insertions, 13 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c b/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c index 3d6f617abb7d..c39907c641a0 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c @@ -181,25 +181,17 @@ static int alloc_4k(struct mlx5_core_dev *dev, u64 *addr) #define MLX5_U64_4K_PAGE_MASK ((~(u64)0U) << PAGE_SHIFT) -static void free_4k(struct mlx5_core_dev *dev, u64 addr) +static void free_fwp(struct mlx5_core_dev *dev, struct fw_page *fwp) { - struct fw_page *fwp; - int n; + int n = (fwp->addr & ~MLX5_U64_4K_PAGE_MASK) >> MLX5_ADAPTER_PAGE_SHIFT; - fwp = find_fw_page(dev, addr & MLX5_U64_4K_PAGE_MASK); - if (!fwp) { - mlx5_core_warn(dev, "page not found\n"); - return; - } - - n = (addr & ~MLX5_U64_4K_PAGE_MASK) >> MLX5_ADAPTER_PAGE_SHIFT; fwp->free_count++; set_bit(n, &fwp->bitmask); if (fwp->free_count == MLX5_NUM_4K_IN_PAGE) { rb_erase(&fwp->rb_node, &dev->priv.page_root); if (fwp->free_count != 1) list_del(&fwp->list); - dma_unmap_page(dev->device, addr & MLX5_U64_4K_PAGE_MASK, + dma_unmap_page(dev->device, fwp->addr & MLX5_U64_4K_PAGE_MASK, PAGE_SIZE, DMA_BIDIRECTIONAL); __free_page(fwp->page); kfree(fwp); @@ -208,6 +200,18 @@ static void free_4k(struct mlx5_core_dev *dev, u64 addr) } } +static void free_addr(struct mlx5_core_dev *dev, u64 addr) +{ + struct fw_page *fwp; + + fwp = find_fw_page(dev, addr & MLX5_U64_4K_PAGE_MASK); + if (!fwp) { + mlx5_core_warn(dev, "page not found\n"); + return; + } + free_fwp(dev, fwp); +} + static int alloc_system_page(struct mlx5_core_dev *dev, u16 func_id) { struct device *device = dev->device; @@ -329,7 +333,7 @@ retry: out_4k: for (i--; i >= 0; i--) - free_4k(dev, MLX5_GET64(manage_pages_in, in, pas[i])); + free_addr(dev, MLX5_GET64(manage_pages_in, in, pas[i])); out_free: kvfree(in); if (notify_fail) @@ -408,7 +412,7 @@ static int reclaim_pages(struct mlx5_core_dev *dev, u32 func_id, int npages, } for (i = 0; i < num_claimed; i++) - free_4k(dev, MLX5_GET64(manage_pages_out, out, pas[i])); + free_addr(dev, MLX5_GET64(manage_pages_out, out, pas[i])); if (nclaimed) *nclaimed = num_claimed; |