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From: "Michael S. Tsirkin" <mst@redhat.com>
To: Jason Wang <jasowang@redhat.com>
Cc: shahafs@mellanox.com, lulu@redhat.com, rdunlap@infradead.org,
	linux-kernel@vger.kernel.org,
	virtualization@lists.linux-foundation.org
Subject: Re: [PATCH V3 16/19] virtio-pci: introduce modern device module
Date: Wed, 10 Feb 2021 07:35:03 -0500	[thread overview]
Message-ID: <20210210073404-mutt-send-email-mst@kernel.org> (raw)
In-Reply-To: <721bf1dc-0b06-7f2a-9685-064a7c281366@redhat.com>

On Wed, Feb 10, 2021 at 12:44:03PM +0800, Jason Wang wrote:
> 
> On 2021/2/9 下午10:20, Michael S. Tsirkin wrote:
> > On Mon, Jan 04, 2021 at 02:55:00PM +0800, Jason Wang wrote:
> > > Signed-off-by: Jason Wang <jasowang@redhat.com>
> > > ---
> > >   drivers/virtio/Kconfig                 |  10 +-
> > >   drivers/virtio/Makefile                |   1 +
> > >   drivers/virtio/virtio_pci_common.h     |  27 +-
> > >   drivers/virtio/virtio_pci_modern.c     | 617 -------------------------
> > >   drivers/virtio/virtio_pci_modern_dev.c | 599 ++++++++++++++++++++++++
> > >   include/linux/virtio_pci_modern.h      | 111 +++++
> > >   6 files changed, 721 insertions(+), 644 deletions(-)
> > >   create mode 100644 drivers/virtio/virtio_pci_modern_dev.c
> > >   create mode 100644 include/linux/virtio_pci_modern.h
> > > 
> > > diff --git a/drivers/virtio/Kconfig b/drivers/virtio/Kconfig
> > > index 7b41130d3f35..6b9b81f4b8c2 100644
> > > --- a/drivers/virtio/Kconfig
> > > +++ b/drivers/virtio/Kconfig
> > > @@ -12,6 +12,14 @@ config ARCH_HAS_RESTRICTED_VIRTIO_MEMORY_ACCESS
> > >   	  This option is selected if the architecture may need to enforce
> > >   	  VIRTIO_F_ACCESS_PLATFORM
> > > +config VIRTIO_PCI_MODERN
> > > +	tristate "Modern Virtio PCI Device"
> > > +	depends on PCI
> > > +	help
> > > +	  Modern PCI device implementation. This module implements the
> > > +	  basic probe and control for devices which are based on modern
> > > +	  PCI device with possible vendor specific extensions.
> > > +
> > >   menuconfig VIRTIO_MENU
> > >   	bool "Virtio drivers"
> > >   	default y
> > > @@ -20,7 +28,7 @@ if VIRTIO_MENU
> > >   config VIRTIO_PCI
> > >   	tristate "PCI driver for virtio devices"
> > > -	depends on PCI
> > > +	depends on VIRTIO_PCI_MODERN
> > >   	select VIRTIO
> > >   	help
> > >   	  This driver provides support for virtio based paravirtual device
> > Looks like VIRTIO_PCI_MODERN is actually just a library that
> > virtio pci uses. Is that right?
> 
> 
> Right.
> 
> 
> > In that case just select it
> > automatically, let's not make users enable it manually.
> 
> 
> I've considered to do this but the problem is that the module depends on PCI
> so it can't be selected I think.

Drop the dependency, document that whoever selects it must depend on PCI.

> Thanks
> 
> 
> > 

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  reply	other threads:[~2021-02-10 12:35 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-04  6:54 [PATCH V3 00/19] vDPA driver for virtio-pci device Jason Wang
2021-01-04  6:54 ` [PATCH V3 01/19] virtio-pci: do not access iomem via struct virtio_pci_device directly Jason Wang
2021-01-04  6:54 ` [PATCH V3 02/19] virtio-pci: split out modern device Jason Wang
2021-01-04  6:54 ` [PATCH V3 03/19] virtio-pci-modern: factor out modern device initialization logic Jason Wang
2021-01-04  6:54 ` [PATCH V3 04/19] virtio-pci-modern: introduce vp_modern_remove() Jason Wang
2021-01-04  6:54 ` [PATCH V3 05/19] virtio-pci-modern: introduce helper to set config vector Jason Wang
2021-01-04  6:54 ` [PATCH V3 06/19] virtio-pci-modern: introduce helpers for setting and getting status Jason Wang
2021-01-04  6:54 ` [PATCH V3 07/19] virtio-pci-modern: introduce helpers for setting and getting features Jason Wang
2021-01-04  6:54 ` [PATCH V3 08/19] virtio-pci-modern: introduce vp_modern_generation() Jason Wang
2021-01-04  6:54 ` [PATCH V3 09/19] virtio-pci-modern: introduce vp_modern_set_queue_vector() Jason Wang
2021-01-04  6:54 ` [PATCH V3 10/19] virtio-pci-modern: introduce vp_modern_queue_address() Jason Wang
2021-01-04  6:54 ` [PATCH V3 11/19] virtio-pci-modern: introduce helper to set/get queue_enable Jason Wang
2021-01-04  6:54 ` [PATCH V3 12/19] virtio-pci-modern: introduce helper for setting/geting queue size Jason Wang
2021-01-04  6:54 ` [PATCH V3 13/19] virtio-pci-modern: introduce helper for getting queue nums Jason Wang
2021-01-04  6:54 ` [PATCH V3 14/19] virtio-pci-modern: introduce helper to get notification offset Jason Wang
2021-01-04  6:54 ` [PATCH V3 15/19] virito-pci-modern: rename map_capability() to vp_modern_map_capability() Jason Wang
2021-01-04  6:55 ` [PATCH V3 16/19] virtio-pci: introduce modern device module Jason Wang
2021-02-05 15:34   ` Michael S. Tsirkin
2021-02-08  5:42     ` Jason Wang
2021-02-08 12:04       ` Michael S. Tsirkin
     [not found]         ` <fe639f0f-d639-3c3c-e297-042127788aca@redhat.com>
2021-02-09  9:23           ` Michael S. Tsirkin
     [not found]   ` <CA+G9fYteUN=s5Mp+BhdMPZt96B3qDa+2HwudmWgEmmrDELLPdw@mail.gmail.com>
2021-02-10  4:38     ` Jason Wang
     [not found]   ` <20210209091916-mutt-send-email-mst@kernel.org>
2021-02-10  4:44     ` Jason Wang
2021-02-10 12:35       ` Michael S. Tsirkin [this message]
2021-02-18  5:49         ` Jason Wang
2021-02-12 20:14   ` Guenter Roeck
2021-02-19  8:31     ` Jason Wang
2021-01-04  6:55 ` [PATCH V3 17/19] vdpa: set the virtqueue num during register Jason Wang
2021-02-05 15:27   ` Michael S. Tsirkin
2021-02-08  4:16     ` Jason Wang
2021-01-04  6:55 ` [PATCH V3 18/19] virtio_vdpa: don't warn when fail to disable vq Jason Wang
2021-02-05 15:24   ` Michael S. Tsirkin
2021-02-08  4:15     ` Jason Wang
2021-01-04  6:55 ` [PATCH V3 19/19] vdpa: introduce virtio pci driver Jason Wang
2021-02-02  3:53 ` [PATCH V3 00/19] vDPA driver for virtio-pci device Jason Wang

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