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| author | Mengyuan Lou <mengyuanlou@net-swift.com> | 2024-11-15 05:46:04 +0300 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2024-11-16 02:30:15 +0300 |
| commit | aa46a3736afcb7b0793766d22479b8b99fc1b322 (patch) | |
| tree | df72f8042df89168c54bb3e8e5965a7ce5a0f0a6 /tools/perf/scripts/python/syscall-counts.py | |
| parent | 9852d85ec9d492ebef56dc5f229416c925758edc (diff) | |
| download | linux-aa46a3736afcb7b0793766d22479b8b99fc1b322.tar.xz | |
PCI: Add ACS quirk for Wangxun FF5xxx NICs
Wangxun FF5xxx NICs are similar to SFxxx, RP1000 and RP2000 NICs. They may
be multi-function devices, but they do not advertise an ACS capability.
But the hardware does isolate FF5xxx functions as though it had an ACS
capability and PCI_ACS_RR and PCI_ACS_CR were set in the ACS Control
register, i.e., all peer-to-peer traffic is directed upstream instead of
being routed internally.
Add ACS quirk for FF5xxx NICs in pci_quirk_wangxun_nic_acs() so the
functions can be in independent IOMMU groups.
Link: https://lore.kernel.org/r/E16053DB2B80E9A5+20241115024604.30493-1-mengyuanlou@net-swift.com
Signed-off-by: Mengyuan Lou <mengyuanlou@net-swift.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts.py')
0 files changed, 0 insertions, 0 deletions