From: Don Dutile <ddutile@redhat.com>
To: David Woodhouse <dwmw2@infradead.org>,
Alexander Duyck <alexander.duyck@gmail.com>
Cc: Bjorn Helgaas <helgaas@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-pci <linux-pci@vger.kernel.org>,
linux-kernel <linux-kernel@vger.kernel.org>,
Alexander Duyck <alexander.h.duyck@intel.com>,
"Bryant G. Ly" <bryantly@linux.vnet.ibm.com>,
Bodong Wang <bodong@mellanox.com>,
Alex Williamson <alex.williamson@redhat.com>,
"Michael S. Tsirkin" <mst@redhat.com>,
kvm@vger.kernel.org
Subject: Re: [PATCH] uio/uio_pci_generic: Add SR-IOV support
Date: Thu, 28 Sep 2017 12:56:15 -0400 [thread overview]
Message-ID: <3ddc65bd-bf47-acb8-4cc5-db2531e1e864@redhat.com> (raw)
In-Reply-To: <1506613946.7476.130.camel@infradead.org>
On 09/28/2017 11:52 AM, David Woodhouse wrote:
> On Thu, 2017-09-28 at 11:05 -0400, Don Dutile wrote:
>> ah, nickel summary: no in-kernel driver w/.sriov-configure method.
>> if so, now I'm up to speed with you....
>> hmmmm....
>> so, that would imply we need an in-kernel, pcie-common, .sriov-
>> configure method
>> that's invoked if a driver isn't bound to a device? ... yes?
>
> Well that was kind of the point in my question below the ---
>
> Is that something we want to be generic? Would we want to have quirks
> for the devices where we might *not* want it?
>
> Anything that *has* a driver for the PF, should have .sriov_configure
> already. Anything that doesn't have a driver can (now) use UIO to
> enable SR-IOV. So we don't *have* to make it unconditionally
> available...
>
Well, my point is more like: why put it in uio?
why not make it available via pcie, setup while/if no driver attached?
i.e., other non-uio users can use the mechanism.... like libvirt? ...
if a PF driver isn't required.
next prev parent reply other threads:[~2017-09-28 16:56 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-27 12:59 [PATCH] uio/uio_pci_generic: Add SR-IOV support David Woodhouse
2017-09-27 22:00 ` Bjorn Helgaas
2017-09-27 22:20 ` David Woodhouse
2017-09-27 23:06 ` Alexander Duyck
2017-09-28 12:22 ` Don Dutile
2017-09-28 13:46 ` David Woodhouse
2017-09-28 15:05 ` Don Dutile
2017-09-28 15:52 ` David Woodhouse
2017-09-28 16:56 ` Don Dutile [this message]
2017-10-02 12:35 ` David Woodhouse
2017-10-02 18:52 ` Don Dutile
2017-10-02 19:10 ` David Woodhouse
2017-10-02 22:02 ` Don Dutile
2017-09-28 12:12 ` Don Dutile
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