Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1276997

Re: [RFC PATCH V2 0/3] IXGBE/VFIO: Add live migration support for SRIOV NIC

Show all headers | View raw

On 2015年11月24日 22:20, Alexander Duyck wrote:
> I'm still not a fan of this approach.  I really feel like this is
> something that should be resolved by extending the existing PCI hot-plug
> rather than trying to instrument this per driver.  Then you will get the
> goodness for multiple drivers and multiple OSes instead of just one.  An
> added advantage to dealing with this in the PCI hot-plug environment
> would be that you could then still do a hot-plug even if the guest
> didn't load a driver for the VF since you would be working with the PCI
> slot instead of the device itself.
> 
> - Alex

Hi Alex:
	What's you mentioned seems the bonding driver solution.
Paper "Live Migration with Pass-through Device for Linux VM" describes
it. It does VF hotplug during migration. In order to maintain Network
connection when VF is out, it takes advantage of Linux bonding driver to
switch between VF NIC and emulated NIC. But the side affects, that
requires VM to do additional configure and the performance during
switching two NIC is not good.

-- 
Best regards
Tianyu Lan
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

[RFC PATCH V2 0/3] IXGBE/VFIO: Add live migration support for SRIOV NIC Lan Tianyu <tianyu.lan@intel.com> - 2015-11-24 15:00 +0100
  Re: [RFC PATCH V2 0/3] IXGBE/VFIO: Add live migration support for  SRIOV NIC Alexander Duyck <alexander.duyck@gmail.com> - 2015-11-24 15:30 +0100
    Re: [RFC PATCH V2 0/3] IXGBE/VFIO: Add live migration support for  SRIOV NIC Lan Tianyu <tianyu.lan@intel.com> - 2015-11-25 04:40 +0100
      Re: [RFC PATCH V2 0/3] IXGBE/VFIO: Add live migration support for  SRIOV NIC Alexander Duyck <alexander.duyck@gmail.com> - 2015-11-25 06:40 +0100
        Re: [RFC PATCH V2 0/3] IXGBE/VFIO: Add live migration support for  SRIOV NIC Lan Tianyu <tianyu.lan@intel.com> - 2015-11-25 09:40 +0100
          Re: [RFC PATCH V2 0/3] IXGBE/VFIO: Add live migration support for  SRIOV NIC Alexander Duyck <alexander.duyck@gmail.com> - 2015-11-25 16:40 +0100
            RE: [RFC PATCH V2 0/3] IXGBE/VFIO: Add live migration support for  SRIOV NIC "Dong, Eddie" <eddie.dong@intel.com> - 2015-11-26 04:20 +0100
              Re: [RFC PATCH V2 0/3] IXGBE/VFIO: Add live migration support for  SRIOV NIC Alexander Duyck <alexander.duyck@gmail.com> - 2015-11-26 05:00 +0100
                Re: [RFC PATCH V2 0/3] IXGBE/VFIO: Add live migration support for  SRIOV NIC "Lan, Tianyu" <tianyu.lan@intel.com> - 2015-11-30 08:00 +0100

csiph-web