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Tariq Toukan c31fe2b509 net/mlx5: SD, Do not query MPIR register if no sd_group
Unconditionally calling the MPIR query on BF separate mode yields the FW
syndrome below [1]. Do not call it unless admin clearly specified the SD
group, i.e. expressing the intention of using the multi-PF netdev
feature.

This fix covers cases not covered in
commit fca3b47918 ("net/mlx5: Do not query MPIR on embedded CPU function").

[1]
mlx5_cmd_out_err:808:(pid 8267): ACCESS_REG(0x805) op_mod(0x1) failed,
status bad system state(0x4), syndrome (0x685f19), err(-5)

Fixes: 678eb44805 ("net/mlx5: SD, Implement basic query and instantiation")
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Gal Pressman <gal@nvidia.com>
Link: https://patch.msgid.link/20240808144107.2095424-2-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
History 2024-08-09 22:16:46 -07:00
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Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.