Hi Bjorn,
> Subject: Re: [PATCH v2 1/5] PCI/P2PDMA: Don't enforce ACS check for
> functions of same device
>
> On Wed, Oct 30, 2024 at 03:20:02PM -0600, Logan Gunthorpe wrote:
> > On 2024-10-30 12:46, Bjorn Helgaas wrote:
> > > On Fri, Oct 25, 2024 at 06:57:37
On Wed, Oct 30, 2024 at 03:20:02PM -0600, Logan Gunthorpe wrote:
> On 2024-10-30 12:46, Bjorn Helgaas wrote:
> > On Fri, Oct 25, 2024 at 06:57:37AM +, Kasireddy, Vivek wrote:
> > In the PCIe world, I don't think a TLP can "loop back" to another
> > function on the same device.
>
> I'm not sure
On 2024-10-30 12:46, Bjorn Helgaas wrote:
> On Fri, Oct 25, 2024 at 06:57:37AM +, Kasireddy, Vivek wrote:
> In the PCIe world, I don't think a TLP can "loop back" to another
> function on the same device.
I'm not sure if the spec says anything that specifically denies this.
But it seems to
On Fri, Oct 25, 2024 at 06:57:37AM +, Kasireddy, Vivek wrote:
> > Subject: Re: [PATCH v2 1/5] PCI/P2PDMA: Don't enforce ACS check for
> > functions of same device
> >
> > On Thu, Oct 24, 2024 at 05:58:48AM +, Kasireddy, Vivek wrote:
> > > > Subj
On Thu, Oct 24, 2024 at 10:21:17AM -0600, Logan Gunthorpe wrote:
> On 2024-10-23 23:50, Kasireddy, Vivek wrote:
> >> I'd echo many of Bjorn's concerns. In addition, I think the name of the
> >> pci_devs_are_p2pdma_compatible() isn't quite right. Specifically this is
> >> dealing with PCI functions
Hi Bjorn,
> Subject: Re: [PATCH v2 1/5] PCI/P2PDMA: Don't enforce ACS check for
> functions of same device
>
> On Thu, Oct 24, 2024 at 05:58:48AM +, Kasireddy, Vivek wrote:
> > > Subject: Re: [PATCH v2 1/5] PCI/P2PDMA: Don't enforce ACS check for
> > >
On Thu, Oct 24, 2024 at 05:58:48AM +, Kasireddy, Vivek wrote:
> > Subject: Re: [PATCH v2 1/5] PCI/P2PDMA: Don't enforce ACS check for
> > functions of same device
> >
> > On Sun, Oct 20, 2024 at 10:21:29PM -0700, Vivek Kasireddy wrote:
> > > Functions of
On 2024-10-23 23:50, Kasireddy, Vivek wrote:
>> I'd echo many of Bjorn's concerns. In addition, I think the name of the
>> pci_devs_are_p2pdma_compatible() isn't quite right. Specifically this is
>> dealing with PCI functions within a single device that are known to
>> allow P2P traffic. So I th
Hi Bjorn,
> Subject: Re: [PATCH v2 1/5] PCI/P2PDMA: Don't enforce ACS check for
> functions of same device
>
> On Sun, Oct 20, 2024 at 10:21:29PM -0700, Vivek Kasireddy wrote:
> > Functions of the same PCI device (such as a PF and a VF) share the
> > same bus an
Hi Logan,
> Subject: Re: [PATCH v2 1/5] PCI/P2PDMA: Don't enforce ACS check for
> functions of same device
>
>
>
> On 2024-10-22 09:16, Bjorn Helgaas wrote:
> > On Sun, Oct 20, 2024 at 10:21:29PM -0700, Vivek Kasireddy wrote:
> >> Functions of the same PC
On 2024-10-22 09:16, Bjorn Helgaas wrote:
> On Sun, Oct 20, 2024 at 10:21:29PM -0700, Vivek Kasireddy wrote:
>> Functions of the same PCI device (such as a PF and a VF) share the
>> same bus and have a common root port and typically, the PF provisions
>> resources for the VF. Therefore, they can
On Sun, Oct 20, 2024 at 10:21:29PM -0700, Vivek Kasireddy wrote:
> Functions of the same PCI device (such as a PF and a VF) share the
> same bus and have a common root port and typically, the PF provisions
> resources for the VF. Therefore, they can be considered compatible
> as far as P2P access i
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