From: Alexander Duyck <alexander.duyck@gmail.com>
To: Christoph Hellwig <hch@lst.de>
Cc: Alex Williamson <alex.williamson@redhat.com>,
Bjorn Helgaas <bhelgaas@google.com>,
"Duyck, Alexander H" <alexander.h.duyck@intel.com>,
linux-pci@vger.kernel.org, virtio-dev@lists.oasis-open.org,
kvm@vger.kernel.org, Netdev <netdev@vger.kernel.org>,
"Daly, Dan" <dan.daly@intel.com>,
LKML <linux-kernel@vger.kernel.org>,
linux-nvme@lists.infradead.org, keith.busch@intel.com,
netanel@amazon.com, Maximilian Heyne <mheyne@amazon.de>,
"Wang, Liang-min" <liang-min.wang@intel.com>,
"Rustad, Mark D" <mark.d.rustad@intel.com>,
David Woodhouse <dwmw2@infradead.org>,
dwmw@amazon.co.uk
Subject: Re: [pci PATCH v4 1/4] pci-iov: Add support for unmanaged SR-IOV
Date: Mon, 12 Mar 2018 09:01:54 -0700 [thread overview]
Message-ID: <CAKgT0UcJz7go-vRd88M6uo1mqbG9BfedkZmR0CXZ92m6KfRPzw@mail.gmail.com> (raw)
In-Reply-To: <20180312075907.GA5342@lst.de>
On Mon, Mar 12, 2018 at 12:59 AM, Christoph Hellwig <hch@lst.de> wrote:
> On Sun, Mar 11, 2018 at 09:59:09PM -0600, Alex Williamson wrote:
>> I still struggle to understand why we need this "unmanaged"
>> complication and how a user of the sysfs API is expected to have any
>> idea whether a PF is managed or unmanaged and why they should care.
>> Can't we just have a pci_simple_sriov_configure() helper and ignore
>> this unmanaged business? Thanks,
>
> Just a pci_simple_sriov_configure is exactly what I envisioned originally.
I can drop the "unmanaged" bits if that is what is wanted, but based
on previous conversations I thought there was some concern about the
kernel loading VFs when there was some foreign entity managing the VFs
other than the kernel.
Thanks.
- Alex
WARNING: multiple messages have this Message-ID (diff)
From: alexander.duyck@gmail.com (Alexander Duyck)
Subject: [pci PATCH v4 1/4] pci-iov: Add support for unmanaged SR-IOV
Date: Mon, 12 Mar 2018 09:01:54 -0700 [thread overview]
Message-ID: <CAKgT0UcJz7go-vRd88M6uo1mqbG9BfedkZmR0CXZ92m6KfRPzw@mail.gmail.com> (raw)
In-Reply-To: <20180312075907.GA5342@lst.de>
On Mon, Mar 12, 2018@12:59 AM, Christoph Hellwig <hch@lst.de> wrote:
> On Sun, Mar 11, 2018@09:59:09PM -0600, Alex Williamson wrote:
>> I still struggle to understand why we need this "unmanaged"
>> complication and how a user of the sysfs API is expected to have any
>> idea whether a PF is managed or unmanaged and why they should care.
>> Can't we just have a pci_simple_sriov_configure() helper and ignore
>> this unmanaged business? Thanks,
>
> Just a pci_simple_sriov_configure is exactly what I envisioned originally.
I can drop the "unmanaged" bits if that is what is wanted, but based
on previous conversations I thought there was some concern about the
kernel loading VFs when there was some foreign entity managing the VFs
other than the kernel.
Thanks.
- Alex
WARNING: multiple messages have this Message-ID (diff)
From: Alexander Duyck <alexander.duyck@gmail.com>
To: Christoph Hellwig <hch@lst.de>
Cc: Alex Williamson <alex.williamson@redhat.com>,
Bjorn Helgaas <bhelgaas@google.com>,
"Duyck, Alexander H" <alexander.h.duyck@intel.com>,
linux-pci@vger.kernel.org, virtio-dev@lists.oasis-open.org,
kvm@vger.kernel.org, Netdev <netdev@vger.kernel.org>,
"Daly, Dan" <dan.daly@intel.com>,
LKML <linux-kernel@vger.kernel.org>,
linux-nvme@lists.infradead.org, keith.busch@intel.com,
netanel@amazon.com, Maximilian Heyne <mheyne@amazon.de>,
"Wang, Liang-min" <liang-min.wang@intel.com>,
"Rustad, Mark D" <mark.d.rustad@intel.com>,
David Woodhouse <dwmw2@infradead.org>,
dwmw@amazon.co.uk
Subject: [virtio-dev] Re: [pci PATCH v4 1/4] pci-iov: Add support for unmanaged SR-IOV
Date: Mon, 12 Mar 2018 09:01:54 -0700 [thread overview]
Message-ID: <CAKgT0UcJz7go-vRd88M6uo1mqbG9BfedkZmR0CXZ92m6KfRPzw@mail.gmail.com> (raw)
In-Reply-To: <20180312075907.GA5342@lst.de>
On Mon, Mar 12, 2018 at 12:59 AM, Christoph Hellwig <hch@lst.de> wrote:
> On Sun, Mar 11, 2018 at 09:59:09PM -0600, Alex Williamson wrote:
>> I still struggle to understand why we need this "unmanaged"
>> complication and how a user of the sysfs API is expected to have any
>> idea whether a PF is managed or unmanaged and why they should care.
>> Can't we just have a pci_simple_sriov_configure() helper and ignore
>> this unmanaged business? Thanks,
>
> Just a pci_simple_sriov_configure is exactly what I envisioned originally.
I can drop the "unmanaged" bits if that is what is wanted, but based
on previous conversations I thought there was some concern about the
kernel loading VFs when there was some foreign entity managing the VFs
other than the kernel.
Thanks.
- Alex
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next prev parent reply other threads:[~2018-03-12 16:01 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-08 19:00 [pci PATCH v4 0/4] Add support for unmanaged SR-IOV Alexander Duyck
2018-03-08 19:00 ` [virtio-dev] " Alexander Duyck
2018-03-08 19:00 ` Alexander Duyck
2018-03-08 19:02 ` [pci PATCH v4 1/4] pci-iov: " Alexander Duyck
2018-03-08 19:02 ` [virtio-dev] " Alexander Duyck
2018-03-08 19:02 ` Alexander Duyck
2018-03-12 3:59 ` Alex Williamson
2018-03-12 3:59 ` Alex Williamson
2018-03-12 7:59 ` Christoph Hellwig
2018-03-12 7:59 ` Christoph Hellwig
2018-03-12 16:01 ` Alexander Duyck [this message]
2018-03-12 16:01 ` [virtio-dev] " Alexander Duyck
2018-03-12 16:01 ` Alexander Duyck
2018-03-12 16:28 ` Alex Williamson
2018-03-12 16:28 ` Alex Williamson
2018-03-08 19:03 ` [pci PATCH v4 2/4] virtio_pci: Add support for unmanaged SR-IOV on virtio_pci devices Alexander Duyck
2018-03-08 19:03 ` [virtio-dev] " Alexander Duyck
2018-03-08 19:03 ` Alexander Duyck
2018-03-08 19:03 ` [pci PATCH v4 3/4] ena: Migrate over to "unmanaged SR-IOV" support Alexander Duyck
2018-03-08 19:03 ` [virtio-dev] " Alexander Duyck
2018-03-08 19:03 ` Alexander Duyck
2018-03-08 19:04 ` [pci PATCH v4 4/4] nvme: " Alexander Duyck
2018-03-08 19:04 ` [virtio-dev] " Alexander Duyck
2018-03-08 19:04 ` Alexander Duyck
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