linux-kernel - Re: [virtio-dev] [pci PATCH v7 1/5] pci: Add pci_sriov_configure_simple for PFs that don't manage VF resources

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Date:   Wed, 28 Mar 2018 21:30:29 +0000
From:   "Rustad, Mark D" <mark.d.rustad@...el.com>
To:     Alexander Duyck <alexander.duyck@...il.com>
CC:     "bhelgaas@...gle.com" <bhelgaas@...gle.com>,
        "Duyck, Alexander H" <alexander.h.duyck@...el.com>,
        "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
        "virtio-dev@...ts.oasis-open.org" <virtio-dev@...ts.oasis-open.org>,
        "kvm@...r.kernel.org" <kvm@...r.kernel.org>,
        Netdev <netdev@...r.kernel.org>,
        "Daly, Dan" <dan.daly@...el.com>,
        LKML <linux-kernel@...r.kernel.org>,
        "linux-nvme@...ts.infradead.org" <linux-nvme@...ts.infradead.org>,
        "Busch, Keith" <keith.busch@...el.com>,
        "netanel@...zon.com" <netanel@...zon.com>,
        "ddutile@...hat.com" <ddutile@...hat.com>,
        "mheyne@...zon.de" <mheyne@...zon.de>,
        "Wang, Liang-min" <liang-min.wang@...el.com>,
        "dwmw2@...radead.org" <dwmw2@...radead.org>,
        "hch@....de" <hch@....de>, "dwmw@...zon.co.uk" <dwmw@...zon.co.uk>
Subject: Re: [virtio-dev] [pci PATCH v7 1/5] pci: Add
 pci_sriov_configure_simple for PFs that don't manage VF resources

On Mar 15, 2018, at 11:41 AM, Alexander Duyck <alexander.duyck@...il.com> wrote:

> From: Alexander Duyck <alexander.h.duyck@...el.com>
> 
> This patch adds a common configuration function called
> pci_sriov_configure_simple that will allow for managing VFs on devices
> where the PF is not capable of managing VF resources.
> 
> Signed-off-by: Alexander Duyck <alexander.h.duyck@...el.com>
> ---
> 
> v5: New patch replacing pci_sriov_configure_unmanaged with
>       pci_sriov_configure_simple
>     Dropped bits related to autoprobe changes
> v6: Defined pci_sriov_configure_simple as NULL if IOV is disabled
> v7: Updated pci_sriov_configure_simple to drop need for err value
>     Fixed comment explaining why pci_sriov_configure_simple is NULL
> 
>  drivers/pci/iov.c   |   31 +++++++++++++++++++++++++++++++
>  include/linux/pci.h |    3 +++
>  2 files changed, 34 insertions(+)

Tested with the device identified in patch #2.

Tested-by: Mark Rustad <mark.d.rustad@...el.com>

--
Mark Rustad, Networking Division, Intel Corporation

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