From: Barry Song <21cnbao@gmail.com>
To: bhelgaas@google.com, maz@kernel.org, tglx@linutronix.de
Cc: Jonathan.Cameron@huawei.com, bilbao@vt.edu, corbet@lwn.net,
gregkh@linuxfoundation.org, leon@kernel.org,
linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org,
linuxarm@huawei.com, luzmaximilian@gmail.com,
mchehab+huawei@kernel.org, schnelle@linux.ibm.com,
jesse.brandeburg@intel.com, anthony.l.nguyen@intel.com,
intel-wired-lan@lists.osuosl.org,
Barry Song <song.bao.hua@hisilicon.com>
Subject: [PATCH v3 0/3] PCI/MSI: Clarify the IRQ sysfs ABI for PCI devices
Date: Wed, 25 Aug 2021 18:26:33 +0800 [thread overview]
Message-ID: <20210825102636.52757-1-21cnbao@gmail.com> (raw)
From: Barry Song <song.bao.hua@hisilicon.com>
/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@gmail.com/
-v1:
https://lore.kernel.org/lkml/20210813122650.25764-1-21cnbao@gmail.com/#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
next reply other threads:[~2021-08-25 10:27 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-25 10:26 Barry Song [this message]
2021-08-25 10:26 ` [PATCH v3 1/3] Documentation: ABI: sysfs-bus-pci: Add description for IRQ entry Barry Song
2021-08-25 10:26 ` [PATCH v3 2/3] PCI/sysfs: Don't depend on pci_dev.irq " Barry Song
2021-08-25 13:30 ` Marc Zyngier
2021-08-25 10:26 ` [PATCH v3 3/3] PCI/MSI: remove msi_attrib.default_irq in msi_desc Barry Song
2021-08-25 13:38 ` Marc Zyngier
2021-08-29 14:55 ` [PCI/MSI] a4fc4cf388: dmesg.genirq:Flags_mismatch_irq##(mei_me)vs.#(xhci_hcd) kernel test robot
2021-08-31 1:21 ` Barry Song
2021-08-31 1:36 ` Barry Song
2021-09-02 19:34 ` Winkler, Tomas
2021-10-03 8:32 ` Barry Song
2021-10-15 14:45 ` [LKP] " Carel Si
2021-10-16 0:08 ` Barry Song
2021-10-19 6:52 ` Carel Si
2021-08-31 8:08 ` Marc Zyngier
2021-08-31 21:36 ` Barry Song
2021-09-01 13:09 ` Marc Zyngier
2021-10-16 10:11 ` [PATCH v3 0/3] PCI/MSI: Clarify the IRQ sysfs ABI for PCI devices Barry Song
2021-10-18 21:50 ` Bjorn Helgaas
2021-10-19 7:39 ` Marc Zyngier
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