Re: [PATCH vhost v9 0/6] refactor the params of find_vqs()

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On Wed, May 22, 2024 at 08:35:21PM +0800, Xuan Zhuo wrote:
> On Wed, 22 May 2024 08:28:43 -0400, "Michael S. Tsirkin" <mst@xxxxxxxxxx> wrote:
> > On Wed, Apr 24, 2024 at 05:15:27PM +0800, Xuan Zhuo wrote:
> > > This pathset is splited from the
> > >
> > >      http://lore.kernel.org/all/20240229072044.77388-1-xuanzhuo@xxxxxxxxxxxxxxxxx
> > >
> > > That may needs some cycles to discuss. But that notifies too many people.
> > >
> > > But just the four commits need to notify so many people.
> > > And four commits are independent. So I split that patch set,
> > > let us review these first.
> > >
> > > The patch set try to  refactor the params of find_vqs().
> > > Then we can just change the structure, when introducing new
> > > features.
> > >
> > > Thanks.
> >
> > It's nice but I'd like to see something that uses this before I bother
> > merging. IIUC premapped is dropped - are we going to use this in practice?
> 
> 
> 1. You know this modification makes sense.
> 2. This modification is difficult. Unlike modifying virtio ring or virtio-net,
>    this patch set requires modifying many modules and being reviewed by
>    many people.
> 3. If you do not merge it now, then this patch set will most likely be
>    abandoned. And I worked a lot on that.
> 4. premapped has not been abandoned, I have been advancing this work. What was
>    abandoned was just virtio-net big mode's support for premapped.
> 5. My plan is to complete virtio-net support for af-xdp in 6.10. This must
>    depend on premapped.
> 
> So, I hope you merge this patch set.
> 
> Thanks.

If this makes thing easier for you, I can put it in my tree post
release. This way you do not need to keep reposting it.
I'll then merge it with premapped.


> 
> >
> > > v8:
> > >   1. rebase the vhost branch
> > >
> > > v7:
> > >   1. fix two bugs. @Jason
> > >
> > > v6:
> > >   1. virtio_balloon: a single variable for both purposes.
> > >   2. if names[i] is null, return error
> > >
> > > v5:
> > >   1. virtio_balloon: follow David Hildenbrand's suggest
> > >     http://lore.kernel.org/all/3620be9c-e288-4ff2-a7be-1fcf806e6e6e@xxxxxxxxxx
> > >   2. fix bug of the reference of "cfg_idx"
> > >     http://lore.kernel.org/all/202403222227.Sdp23Lcb-lkp@xxxxxxxxx
> > >
> > > v4:
> > >   1. remove support for names array entries being null
> > >   2. remove cfg_idx from virtio_vq_config
> > >
> > > v3:
> > >   1. fix the bug: "assignment of read-only location '*cfg.names'"
> > >
> > > v2:
> > >   1. add kerneldoc for "struct vq_transport_config" @ilpo.jarvinen
> > >
> > > v1:
> > >   1. fix some comments from ilpo.jarvinen@xxxxxxxxxxxxxxx
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > > Xuan Zhuo (6):
> > >   virtio_balloon: remove the dependence where names[] is null
> > >   virtio: remove support for names array entries being null.
> > >   virtio: find_vqs: pass struct instead of multi parameters
> > >   virtio: vring_create_virtqueue: pass struct instead of multi
> > >     parameters
> > >   virtio: vring_new_virtqueue(): pass struct instead of multi parameters
> > >   virtio_ring: simplify the parameters of the funcs related to
> > >     vring_create/new_virtqueue()
> > >
> > >  arch/um/drivers/virtio_uml.c             |  36 +++--
> > >  drivers/platform/mellanox/mlxbf-tmfifo.c |  23 +--
> > >  drivers/remoteproc/remoteproc_virtio.c   |  37 +++--
> > >  drivers/s390/virtio/virtio_ccw.c         |  38 ++---
> > >  drivers/virtio/virtio_balloon.c          |  48 +++---
> > >  drivers/virtio/virtio_mmio.c             |  36 +++--
> > >  drivers/virtio/virtio_pci_common.c       |  69 ++++-----
> > >  drivers/virtio/virtio_pci_common.h       |   9 +-
> > >  drivers/virtio/virtio_pci_legacy.c       |  16 +-
> > >  drivers/virtio/virtio_pci_modern.c       |  37 +++--
> > >  drivers/virtio/virtio_ring.c             | 177 ++++++++---------------
> > >  drivers/virtio/virtio_vdpa.c             |  51 +++----
> > >  include/linux/virtio_config.h            |  76 +++++++---
> > >  include/linux/virtio_ring.h              |  93 +++++++-----
> > >  tools/virtio/virtio_test.c               |   4 +-
> > >  tools/virtio/vringh_test.c               |  28 ++--
> > >  16 files changed, 384 insertions(+), 394 deletions(-)
> > >
> > > --
> > > 2.32.0.3.g01195cf9f
> >





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