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| author | Chris Wright <[email protected]> | 2011-07-13 10:14:33 -0700 |
|---|---|---|
| committer | Jesse Barnes <[email protected]> | 2011-07-22 08:41:51 -0700 |
| commit | 864d296cf948aef0fa32b81407541572583f7572 (patch) | |
| tree | 67d2cee99f6a5f591bcd6a19bb5333f6c4234598 /tools/perf/util/scripting-engines/trace-event-python.c | |
| parent | a8c7ef3187a266d201af887fd48afbef3598825a (diff) | |
PCI: ARI is a PCIe v2 feature
The function pci_enable_ari() may mistakenly set the downstream port
of a v1 PCIe switch in ARI Forwarding mode. This is a PCIe v2 feature,
and with an SR-IOV device on that switch port believing the switch above
is ARI capable it may attempt to use functions 8-255, translating into
invalid (non-zero) device numbers for that bus. This has been seen
to cause Completion Timeouts and general misbehaviour including hangs
and panics.
Cc: [email protected]
Acked-by: Don Dutile <[email protected]>
Tested-by: Don Dutile <[email protected]>
Signed-off-by: Chris Wright <[email protected]>
Signed-off-by: Jesse Barnes <[email protected]>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
0 files changed, 0 insertions, 0 deletions