[PATCH 4.14 042/193] net/mlx5: Enhance debug print in page allocation failure

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



From: Jack Morgenstein <jackm@xxxxxxxxxx>

[ Upstream commit 7eef93003e5d20e1a6a6e59e12d914b5431cbda2 ]

Provide more details to aid debugging.

Fixes: bf0bf77f6519 ("mlx5: Support communicating arbitrary host page size to firmware")
Signed-off-by: Eran Ben Elisha <eranbe@xxxxxxxxxx>
Signed-off-by: Majd Dibbiny <majd@xxxxxxxxxx>
Signed-off-by: Jack Morgenstein <jackm@xxxxxxxxxx>
Signed-off-by: Saeed Mahameed <saeedm@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c b/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c
index 9c3653e06886a..fc880c02459db 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c
@@ -164,7 +164,8 @@ 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);
-- 
2.39.2






[Index of Archives]     [Linux Kernel]     [Kernel Development Newbies]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite Hiking]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux