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authorZhang, Yanmin <yanmin_zhang@linux.intel.com>2009-06-16 13:35:11 +0800
committerJesse Barnes <jbarnes@virtuousgeek.org>2009-06-16 14:30:13 -0700
commit28eb27cf0839a30948335f9b2edda739f48b7a2e (patch)
tree3278825cdfc730c4b44fcf18a41a2d96180030a3 /Documentation/PCI
parent70298c6e6c1ba68346336b4ea54bd5c0abbf73c8 (diff)
PCI AER: support invalid error source IDs
When the bus id part of error source id is equal to 0 or nosourceid=1, make the kernel probe the AER status registers of all devices under the root port to find the initial error reporter. Reviewed-by: Andrew Patterson <andrew.patterson@hp.com> Signed-off-by: Zhang Yanmin <yanmin_zhang@linux.intel.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'Documentation/PCI')
-rw-r--r--Documentation/PCI/pcieaer-howto.txt4
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/PCI/pcieaer-howto.txt b/Documentation/PCI/pcieaer-howto.txt
index f6b1ba7464dc..5408b9b39d89 100644
--- a/Documentation/PCI/pcieaer-howto.txt
+++ b/Documentation/PCI/pcieaer-howto.txt
@@ -61,6 +61,10 @@ be initiated although firmwares have no _OSC support. To enable the
walkaround, pls. add aerdriver.forceload=y to kernel boot parameter line
when booting kernel. Note that forceload=n by default.
+nosourceid, another parameter of type bool, can be used when broken
+hardware (mostly chipsets) has root ports that cannot obtain the reporting
+source ID. nosourceid=n by default.
+
2.3 AER error output
When a PCI-E AER error is captured, an error message will be outputed to
console. If it's a correctable error, it is outputed as a warning.

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