diff options
author | Eli Cohen <eli@dev.mellanox.co.il> | 2014-01-14 17:45:20 +0200 |
---|---|---|
committer | Roland Dreier <roland@purestorage.com> | 2014-01-22 23:23:52 -0800 |
commit | 05bdb2ab6b09f2306f0afe0f60f4b9abffa7aba4 (patch) | |
tree | 526dff83313a9d0b5b136a44cee45e8270db4049 | |
parent | db81a5c374b5bd650c5e6ae85d026709751db103 (diff) | |
download | op-kernel-dev-05bdb2ab6b09f2306f0afe0f60f4b9abffa7aba4.zip op-kernel-dev-05bdb2ab6b09f2306f0afe0f60f4b9abffa7aba4.tar.gz |
mlx5_core: Fix PowerPC support
1. Fix derivation of sub-page index from the dma address in free_4k.
2. Fix the DMA address passed to dma_unmap_page by masking it properly.
Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
-rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c | 9 | ||||
-rw-r--r-- | include/linux/mlx5/device.h | 3 |
2 files changed, 7 insertions, 5 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c b/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c index c35c432..d59790a 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c @@ -99,7 +99,7 @@ enum { enum { MLX5_MAX_RECLAIM_TIME_MILI = 5000, - MLX5_NUM_4K_IN_PAGE = PAGE_SIZE / 4096, + MLX5_NUM_4K_IN_PAGE = PAGE_SIZE / MLX5_ADAPTER_PAGE_SIZE, }; static int insert_page(struct mlx5_core_dev *dev, u64 addr, struct page *page, u16 func_id) @@ -206,7 +206,7 @@ static int alloc_4k(struct mlx5_core_dev *dev, u64 *addr) if (!fp->free_count) list_del(&fp->list); - *addr = fp->addr + n * 4096; + *addr = fp->addr + n * MLX5_ADAPTER_PAGE_SIZE; return 0; } @@ -222,14 +222,15 @@ static void free_4k(struct mlx5_core_dev *dev, u64 addr) return; } - n = (addr & ~PAGE_MASK) % 4096; + n = (addr & ~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->pdev->dev, addr, PAGE_SIZE, DMA_BIDIRECTIONAL); + dma_unmap_page(&dev->pdev->dev, addr & PAGE_MASK, PAGE_SIZE, + DMA_BIDIRECTIONAL); __free_page(fwp->page); kfree(fwp); } else if (fwp->free_count == 1) { diff --git a/include/linux/mlx5/device.h b/include/linux/mlx5/device.h index 87e2371..1d05909 100644 --- a/include/linux/mlx5/device.h +++ b/include/linux/mlx5/device.h @@ -234,7 +234,8 @@ enum { }; enum { - MLX5_ADAPTER_PAGE_SHIFT = 12 + MLX5_ADAPTER_PAGE_SHIFT = 12, + MLX5_ADAPTER_PAGE_SIZE = 1 << MLX5_ADAPTER_PAGE_SHIFT, }; enum { |