[haiku-bugs] Re: [Haiku] #17239: [virtio] Support modern virtio v2 PCI virtio network (was: [virtio] Support "direct attach" PCI virtio network)

  • From: "Haiku" <trac@xxxxxxxxxxxx>
  • To: undisclosed-recipients: ;
  • Date: Fri, 03 Sep 2021 20:09:03 -0000

#17239: [virtio] Support modern virtio v2  PCI virtio network
-------------------------------------+----------------------
  Reporter:  kallisti5               |      Owner:  nobody
      Type:  bug                     |     Status:  new
  Priority:  normal                  |  Milestone:  R1/beta4
 Component:  Drivers/Network/virtio  |    Version:  R1/beta3
Resolution:                          |   Keywords:
Blocked By:                          |   Blocking:
  Platform:  All                     |
-------------------------------------+----------------------
Changes (by kallisti5):

 * summary:  [virtio] Support "direct attach" PCI virtio network => [virtio]
     Support modern virtio v2  PCI virtio network


Old description:

It looks as though some virtio network devices can be "directly attached"
to the PCI bus instead of being attached through a virtio bus.

Seen on a vultr vm trying to boot Haiku R1/beta3

src/add-ons/kernel/drivers/network/virtio/virtio_net.cpp likely needs
some code path to attach to a "virtio bus" or a "pci bus"

New description:

 It looks like a newer "modern" virtio v2 design is now in use which our
 drivers don't work with.  The PCI device ID's are higher.


 Seen on a vultr vm trying to boot Haiku R1/beta3

 src/add-ons/kernel/drivers/network/virtio/virtio_net.cpp likely needs some
 code path to attach to a "virtio bus" or a "pci bus"

--
Comment:

 see #17239 for a little investigation
-- 
Ticket URL: <https://dev.haiku-os.org/ticket/17239#comment:3>
Haiku <https://dev.haiku-os.org>
The Haiku operating system.

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  • » [haiku-bugs] Re: [Haiku] #17239: [virtio] Support modern virtio v2 PCI virtio network (was: [virtio] Support "direct attach" PCI virtio network) - Haiku