[dpdk-dev] [PATCH 2/3] net/virtio: clean up LSC setting
Michael S. Tsirkin
mst at redhat.com
Wed Apr 26 17:11:10 CEST 2017
On Wed, Apr 26, 2017 at 05:44:05AM +0000, Tan, Jianfeng wrote:
> > -----Original Message-----
> > From: Yuanhan Liu [mailto:yuanhan.liu at linux.intel.com]
> > Sent: Wednesday, April 26, 2017 1:33 PM
> > To: Tan, Jianfeng
> > Cc: dev at dpdk.org; maxime.coquelin at redhat.com; thomas at monjalon.net
> > Subject: Re: [PATCH 2/3] net/virtio: clean up LSC setting
> > On Wed, Apr 26, 2017 at 04:52:50AM +0000, Jianfeng Tan wrote:
> > > Clean up LSC setting:
> > Firstly, this patch does two things. There should be two patches.
> I just merged them into one to adapt to the name of "clean up" :-)
> > > - LSC flag is set in several places, but only the last one takes
> > > effect; so we just keep the last one.
> > > - As we already change to use capability list to detect MSI-X, remove
> > > the redundant MSI-X detection in legacy devices.
> > However, there is no capability list for legacy device.
> When I try legacy device on QEMU (disable-modern=true), I did detect MSI-X capability. So does virtio spec mean legacy devices do not have vendor-specific capability list?
Yes, as far as I know legacy devices don't have vendor-specific
More information about the dev