linux-kernel - Re: [PATCH] PCI: Add ACS quirks for Intel 1G NICs

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Date:	Mon, 23 Mar 2015 16:26:40 -0500
From:	Bjorn Helgaas <bhelgaas@...gle.com>
To:	Alex Williamson <alex.williamson@...hat.com>
Cc:	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
	"Ronciak, John" <john.ronciak@...el.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] PCI: Add ACS quirks for Intel 1G NICs

On Fri, Mar 20, 2015 at 1:27 PM, Alex Williamson
<alex.williamson@...hat.com> wrote:
> Intel has verified that there is no peer-to-peer between functions for
> the below selection of 82580, 82576, 82575, I350, and 82571 multi-port
> devices.  This adds the necessary quirks to consider the functions
> isolated from each other.  82571 quad-port devices are omitted due to
> likely lack of ACS/isolation in the onboard switch, rendering quirks
> for the downstream endpoints useless.
>
> Signed-off-by: Alex Williamson <alex.williamson@...hat.com>
> Cc: John Ronciak <john.ronciak@...el.com>

Applied to pci/virtualization for v4.1, thanks!

> ---
>  drivers/pci/quirks.c |   32 ++++++++++++++++++++++++++++++++
>  1 file changed, 32 insertions(+)
>
> diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
> index 85f247e..1bde397 100644
> --- a/drivers/pci/quirks.c
> +++ b/drivers/pci/quirks.c
> @@ -3822,6 +3822,38 @@ static const struct pci_dev_acs_enabled {
>         { PCI_VENDOR_ID_INTEL, 0x154F, pci_quirk_mf_endpoint_acs },
>         { PCI_VENDOR_ID_INTEL, 0x1551, pci_quirk_mf_endpoint_acs },
>         { PCI_VENDOR_ID_INTEL, 0x1558, pci_quirk_mf_endpoint_acs },
> +       /* 82580 */
> +       { PCI_VENDOR_ID_INTEL, 0x1509, pci_quirk_mf_endpoint_acs },
> +       { PCI_VENDOR_ID_INTEL, 0x150E, pci_quirk_mf_endpoint_acs },
> +       { PCI_VENDOR_ID_INTEL, 0x150F, pci_quirk_mf_endpoint_acs },
> +       { PCI_VENDOR_ID_INTEL, 0x1510, pci_quirk_mf_endpoint_acs },
> +       { PCI_VENDOR_ID_INTEL, 0x1511, pci_quirk_mf_endpoint_acs },
> +       { PCI_VENDOR_ID_INTEL, 0x1516, pci_quirk_mf_endpoint_acs },
> +       { PCI_VENDOR_ID_INTEL, 0x1527, pci_quirk_mf_endpoint_acs },
> +       /* 82576 */
> +       { PCI_VENDOR_ID_INTEL, 0x10C9, pci_quirk_mf_endpoint_acs },
> +       { PCI_VENDOR_ID_INTEL, 0x10E6, pci_quirk_mf_endpoint_acs },
> +       { PCI_VENDOR_ID_INTEL, 0x10E7, pci_quirk_mf_endpoint_acs },
> +       { PCI_VENDOR_ID_INTEL, 0x10E8, pci_quirk_mf_endpoint_acs },
> +       { PCI_VENDOR_ID_INTEL, 0x150A, pci_quirk_mf_endpoint_acs },
> +       { PCI_VENDOR_ID_INTEL, 0x150D, pci_quirk_mf_endpoint_acs },
> +       { PCI_VENDOR_ID_INTEL, 0x1518, pci_quirk_mf_endpoint_acs },
> +       { PCI_VENDOR_ID_INTEL, 0x1526, pci_quirk_mf_endpoint_acs },
> +       /* 82575 */
> +       { PCI_VENDOR_ID_INTEL, 0x10A7, pci_quirk_mf_endpoint_acs },
> +       { PCI_VENDOR_ID_INTEL, 0x10A9, pci_quirk_mf_endpoint_acs },
> +       { PCI_VENDOR_ID_INTEL, 0x10D6, pci_quirk_mf_endpoint_acs },
> +       /* I350 */
> +       { PCI_VENDOR_ID_INTEL, 0x1521, pci_quirk_mf_endpoint_acs },
> +       { PCI_VENDOR_ID_INTEL, 0x1522, pci_quirk_mf_endpoint_acs },
> +       { PCI_VENDOR_ID_INTEL, 0x1523, pci_quirk_mf_endpoint_acs },
> +       { PCI_VENDOR_ID_INTEL, 0x1524, pci_quirk_mf_endpoint_acs },
> +       /* 82571 (Quads omitted due to non-ACS switch) */
> +       { PCI_VENDOR_ID_INTEL, 0x105E, pci_quirk_mf_endpoint_acs },
> +       { PCI_VENDOR_ID_INTEL, 0x105F, pci_quirk_mf_endpoint_acs },
> +       { PCI_VENDOR_ID_INTEL, 0x1060, pci_quirk_mf_endpoint_acs },
> +       { PCI_VENDOR_ID_INTEL, 0x10D9, pci_quirk_mf_endpoint_acs },
> +       /* Intel PCH root ports */
>         { PCI_VENDOR_ID_INTEL, PCI_ANY_ID, pci_quirk_intel_pch_acs },
>         { 0x19a2, 0x710, pci_quirk_mf_endpoint_acs }, /* Emulex BE3-R */
>         { 0x10df, 0x720, pci_quirk_mf_endpoint_acs }, /* Emulex Skyhawk-R */
>
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