Re: [PATCH v5 2/7] PCI: Add ACS quirk for Amazon Annapurna Labs root ports

2019-09-11 Thread Chocron, Jonathan
On Sat, 2019-09-07 at 11:54 -0500, Bjorn Helgaas wrote: > On Thu, Sep 05, 2019 at 05:00:16PM +0300, Jonathan Chocron wrote: > > From: Ali Saidi > > > > The Amazon's Annapurna Labs root ports don't advertise an ACS > > capability, but they don't allow peer-to-peer transactions and do > > validate

Re: [PATCH v5 2/7] PCI: Add ACS quirk for Amazon Annapurna Labs root ports

2019-09-07 Thread Bjorn Helgaas
On Thu, Sep 05, 2019 at 05:00:16PM +0300, Jonathan Chocron wrote: > From: Ali Saidi > > The Amazon's Annapurna Labs root ports don't advertise an ACS > capability, but they don't allow peer-to-peer transactions and do > validate bus numbers through the SMMU. Additionally, it's not possible > for

[PATCH v5 2/7] PCI: Add ACS quirk for Amazon Annapurna Labs root ports

2019-09-05 Thread Jonathan Chocron
From: Ali Saidi The Amazon's Annapurna Labs root ports don't advertise an ACS capability, but they don't allow peer-to-peer transactions and do validate bus numbers through the SMMU. Additionally, it's not possible for one RP to pass traffic to another RP. Signed-off-by: Ali Saidi Signed-off-by