linux-kernel - Re: [PATCH v4 1/5] xen-pciback: Document the various parameters and attributes in SysFS

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Date:	Fri, 11 Jul 2014 16:46:31 -0400
From:	Boris Ostrovsky <boris.ostrovsky@...cle.com>
To:	konrad@...nel.org, xen-devel@...ts.xenproject.org,
	david.vrabel@...rix.com, linux-kernel@...r.kernel.org
CC:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
Subject: Re: [PATCH v4 1/5] xen-pciback: Document the various parameters and
 attributes in SysFS

On 07/11/2014 04:08 PM, konrad@...nel.org wrote:
> From: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
>
> Which hadn't been done with the initial commit.
>
> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@...cle.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@...ts.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@...ts.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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