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SubjectRe: [PATCH v4 1/5] xen-pciback: Document the various parameters and attributes in SysFS
On 07/11/2014 04:08 PM, konrad@kernel.org wrote:
> From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
>
> Which hadn't been done with the initial commit.
>
> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
> ---
> v2: Dropped the parameters and one that is unlikeable.
> ---
> Documentation/ABI/testing/sysfs-driver-pciback | 25 ++++++++++++++++++++++++
> 1 files changed, 25 insertions(+), 0 deletions(-)
> create mode 100644 Documentation/ABI/testing/sysfs-driver-pciback
>
> diff --git a/Documentation/ABI/testing/sysfs-driver-pciback b/Documentation/ABI/testing/sysfs-driver-pciback
> new file mode 100644
> index 0000000..e482240
> --- /dev/null
> +++ b/Documentation/ABI/testing/sysfs-driver-pciback
> @@ -0,0 +1,25 @@
> +What: /sys/bus/pci/drivers/pciback/quirks
> +Date: Oct 2011
> +KernelVersion: 3.1
> +Contact: xen-devel@lists.xenproject.org
> +Description:
> + If the permissive attribute is set, then writing a string in
> + the format of DDDD:BB:DD.F-REG:SIZE:MASK will allow the guest
> + to write and read from the PCI device. That is Domain:Bus:
> + Device.Function-Register:Size:Mask (Domain is optional).
> + For example:
> + #echo 00:19.0-E0:2:FF > /sys/bus/pci/drivers/pciback/quirks
> + will allow the guest to read and write to the configuration
> + register 0x0E.
> +
> +What: /sys/bus/pci/drivers/pciback/irq_handlers
> +Date: Oct 2011
> +KernelVersion: 3.1
> +Contact: xen-devel@lists.xenproject.org
> +Description:
> + A list of all of the PCI devices owned by Xen PCI back and
> + whether Xen PCI backend will acknowledge the interrupts received
> + and the amount of interrupts received. Xen PCI back acknowledges
> + said interrupts only when they are level, shared with another
> + guest, and enabled by the guest.

There are 4 fields per device. This description misses isr_on.

-boris



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