This is a note to let you know that I've just added the patch titled

net/mlx5: Stay in polling mode when command EQ destroy fails

to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

The filename of the patch is: net-mlx5-stay-in-polling-mode-when-command-eq-destroy-fails.patch and it can be found in the queue-4.14 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.

From foo@baz Wed Feb 28 16:23:28 CET 2018

From: Moshe Shemesh moshe@mellanox.com Date: Mon, 4 Dec 2017 15:23:51 +0200 Subject: net/mlx5: Stay in polling mode when command EQ destroy fails

From: Moshe Shemesh moshe@mellanox.com

[ Upstream commit a2fba188fd5eadd6061bef4f2f2577a43231ebf3 ]

During unload, on mlx5_stop_eqs we move command interface from events mode to polling mode, but if command interface EQ destroy fail we move back to events mode. That's wrong since even if we fail to destroy command interface EQ, we do release its irq, so no interrupts will be received.

Fixes: e126ba97dba9 ("mlx5: Add driver for Mellanox Connect-IB adapters") Signed-off-by: Moshe Shemesh moshe@mellanox.com Signed-off-by: Saeed Mahameed saeedm@mellanox.com Signed-off-by: Sasha Levin alexander.levin@verizon.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/mellanox/mlx5/core/eq.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-)

--- a/drivers/net/ethernet/mellanox/mlx5/core/eq.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/eq.c @@ -802,11 +802,9 @@ void mlx5_stop_eqs(struct mlx5_core_dev mlx5_cmd_use_polling(dev);

err = mlx5_destroy_unmap_eq(dev, &table->cmd_eq); - if (err) { + if (err) mlx5_core_err(dev, "failed to destroy command eq, err(%d)\n", err); - mlx5_cmd_use_events(dev); - } }

int mlx5_core_eq_query(struct mlx5_core_dev *dev, struct mlx5_eq *eq,

Patches currently in stable-queue which might be from moshe@mellanox.com are

queue-4.14/net-mlx5e-fix-ets-bw-check.patch queue-4.14/net-mlx5-stay-in-polling-mode-when-command-eq-destroy-fails.patch queue-4.14/net-mlx5-cleanup-irqs-in-case-of-unload-failure.patch