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| author | Michael Guralnik <michaelgur@mellanox.com> | 2018-11-21 15:03:54 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-12-08 12:59:07 +0100 |
| commit | a990756426665b86baa14e23ff2de2c3f8243ff7 (patch) | |
| tree | 2051d949f81b6d9d7b5a859fb16e98a3e5105a6d /kernel/trace | |
| parent | a41e946e93806a7fae0a67af381230ae899f07ea (diff) | |
IB/mlx5: Avoid load failure due to unknown link width
commit db7a691a1551a748cb92d9c89c6b190ea87e28d5 upstream.
If the firmware reports a connection width that is not 1x, 4x, 8x or 12x
it causes the driver to fail during initialization.
To prevent this failure every time a new width is introduced to the RDMA
stack, we will set a default 4x width for these widths which ar unknown to
the driver.
This is needed to allow to run old kernels with new firmware.
Cc: <stable@vger.kernel.org> # 4.1
Fixes: 1b5daf11b015 ("IB/mlx5: Avoid using the MAD_IFC command under ISSI > 0 mode")
Signed-off-by: Michael Guralnik <michaelgur@mellanox.com>
Reviewed-by: Majd Dibbiny <majd@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel/trace')
0 files changed, 0 insertions, 0 deletions