Commit 7cce0c9f authored Jan 18, 2023 by Jack Morgenstein Committed by Greg Kroah-Hartman Mar 11, 2023

net/mlx5: Enhance debug print in page allocation failure



[ Upstream commit 7eef93003e5d20e1a6a6e59e12d914b5431cbda2 ]

Provide more details to aid debugging.

Fixes: bf0bf77f ("mlx5: Support communicating arbitrary host page size to firmware")
Signed-off-by: Eran Ben Elisha <eranbe@nvidia.com>
Signed-off-by: Majd Dibbiny <majd@nvidia.com>
Signed-off-by: Jack Morgenstein <jackm@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

parent dbd6ae09

drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -167,7 +167,8 @@ static int alloc_4k(struct mlx5_core_dev dev, u64 addr)
		fp = list_entry(dev->priv.free_list.next, struct fw_page, list);
		n = find_first_bit(&fp->bitmask, 8 * sizeof(fp->bitmask));
		if (n >= MLX5_NUM_4K_IN_PAGE) {
		mlx5_core_warn(dev, "alloc 4k bug\n");
		mlx5_core_warn(dev, "alloc 4k bug: fw page = 0x%llx, n = %u, bitmask: %lu, max num of 4K pages: %d\n",
		fp->addr, n, fp->bitmask, MLX5_NUM_4K_IN_PAGE);
		return -ENOENT;
		}
		clear_bit(n, &fp->bitmask);