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b388face5f
The documentation currently says:
config_acs=
Format:
<ACS flags>@<pci_dev>[; ...]
Specify one or more PCI devices (in the format
specified above) optionally prepended with flags
and separated by semicolons. The respective
capabilities will be enabled, disabled or
unchanged based on what is specified in
flags.
(...)
For example,
pci=config_acs=10x
would configure all devices that support
ACS to enable P2P Request Redirect, disable
Translation Blocking, and leave Source
Validation unchanged from whatever power-up
or firmware set it to.
See the complete documentation at:
https://www.kernel.org/doc/html/latest/admin-guide/kernel-parameters.html
However, a flag specification always needs to be suffixed with "@" and
a PCI valid device address, which is missing in this example. Also, to
configure all devices that support ACS, the flag needs to be suffixed
with "@pci:0:0", for the ACS support to be enabled.
Fix the documentation so the example is correct.
Link: https://lore.kernel.org/r/20240915-acs-v1-1-b9ee536ee9bd@daynix.com
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
[kwilczynski: commit log]
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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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.