diff options
| author | Akihiko Odaki <akihiko.odaki@daynix.com> | 2024-09-15 10:36:58 +0900 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2025-01-21 17:29:11 -0600 |
| commit | b388face5f169e7a41c1b5e1cdd20515160a83b3 (patch) | |
| tree | 299b8a59683ebd57fe46c7e55f21dff7a7cb8695 | |
| parent | 188973e3536a18aebee3af486cd3d2ef82b09f88 (diff) | |
Documentation: Fix pci=config_acs= example
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>
| -rw-r--r-- | Documentation/admin-guide/kernel-parameters.txt | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index dc663c0ca670..b1350b66cc4f 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -4673,7 +4673,7 @@ '1' – force enabled 'x' – unchanged For example, - pci=config_acs=10x + pci=config_acs=10x@pci:0:0 would configure all devices that support ACS to enable P2P Request Redirect, disable Translation Blocking, and leave Source |