diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-12-19 12:30:17 -0800 |
|---|---|---|
| committer | Richard Zhu <Richard.Zhu@freescale.com> | 2014-11-07 12:56:37 +0800 |
| commit | c397af53ebaf1671e05045c8bef71b09236510d7 (patch) | |
| tree | db02d683b84f5e44345c014b77ceaa88f62e4ed6 /Documentation | |
| parent | 9ed68f522fc84ca65c6f0fe28e7d1316837516dd (diff) | |
PCI/MSI: Export MSI mode using attributes, not kobjects
The PCI MSI sysfs code is a mess with kobjects for things that don't really
need to be kobjects. This patch creates attributes dynamically for the MSI
interrupts instead of using kobjects.
Note, this removes a directory from sysfs. Old MSI kobjects:
pci_device
└── msi_irqs
└── 40
└── mode
New MSI attributes:
pci_device
└── msi_irqs
└── 40
As there was only one file "mode" with the kobject model, the interrupt
number is now a file that returns the "mode" of the interrupt (msi vs.
msix).
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
(cherry picked from commit 1c51b50c2995f543d145d3bce78029ac9f8ca6b3)
Conflicts:
drivers/pci/msi.c
(cherry picked from commit 9018185784be55fe8d04a63c687083db58f85bf0)
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-bus-pci | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-pci b/Documentation/ABI/testing/sysfs-bus-pci index 1ce5ae329c04..297493c4f324 100644 --- a/Documentation/ABI/testing/sysfs-bus-pci +++ b/Documentation/ABI/testing/sysfs-bus-pci @@ -71,18 +71,15 @@ Date: September, 2011 Contact: Neil Horman <nhorman@tuxdriver.com> Description: The /sys/devices/.../msi_irqs directory contains a variable set - of sub-directories, with each sub-directory being named after a - corresponding msi irq vector allocated to that device. Each - numbered sub-directory N contains attributes of that irq. - Note that this directory is not created for device drivers which - do not support msi irqs + of files, with each file being named after a corresponding msi + irq vector allocated to that device. -What: /sys/bus/pci/devices/.../msi_irqs/<N>/mode +What: /sys/bus/pci/devices/.../msi_irqs/<N> Date: September 2011 Contact: Neil Horman <nhorman@tuxdriver.com> Description: This attribute indicates the mode that the irq vector named by - the parent directory is in (msi vs. msix) + the file is in (msi vs. msix) What: /sys/bus/pci/devices/.../remove Date: January 2009 |