From: Barry Song <song.bao.hua@xxxxxxxxxxxxx>
/sys/bus/pci/devices/.../irq has been there for many years but it has never
been documented. This patchset is trying to clarify it.
-v3:
- Don't attempt to modify the current behaviour of IRQ ABI for MSI-X
- Make MSI IRQ ABI more explicit(return 1st IRQ of the IRQ vector)
- Add Marc's patch of removing default_irq from the previous comment to
the series.
Note patch 3/3 indirectly changed the code of pci_restore_msi_state(),
drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c is the only driver
calling this API. I would appreciate testing done from this driver's
maintainers.
-v2:
- split into two patches according to Bjorn's comments;
- Add Greg's Acked-by, thanks for reviewing!
https://lore.kernel.org/lkml/20210820223744.8439-1-21cnbao@xxxxxxxxx/
-v1:
https://lore.kernel.org/lkml/20210813122650.25764-1-21cnbao@xxxxxxxxx/#t
Barry Song (2):
Documentation: ABI: sysfs-bus-pci: Add description for IRQ entry
PCI/sysfs: Don't depend on pci_dev.irq for IRQ entry
Marc Zyngier (1):
PCI/MSI: remove msi_attrib.default_irq in msi_desc
Documentation/ABI/testing/sysfs-bus-pci | 10 ++++++++++
drivers/pci/msi.c | 12 +++++-------
drivers/pci/pci-sysfs.c | 23 ++++++++++++++++++++++-
include/linux/msi.h | 2 --
4 files changed, 37 insertions(+), 10 deletions(-)
--
1.8.3.1
