src/sys/dev/virtio/virtio_if.m, branch release/12.4.0

Add optional VirtIO device method for post-attach notifications

2013-09-01T04:20:23+00:00

This is called after the parent device (ie virito_pci) has
completed the device attachment/initialization.

Merge virtio changes from projects/virtio

2013-07-04T17:57:26+00:00

Contains projects/virtio commits:

r245738:
    virtio: Minor man page tweaks
r246060:
    virtio: Cleanup feature description printing
r246306:
    virtio: Remove old debugging flag
r247238:
    virtio: Remove PRIx64 macros from format strings
r247239:
    virtio: Constify some fields
r247240:
    virtio: Minor code simplifications
r249962:
    virtio: Update to my freebsd.org email address

MFC after:	1 month

Convert VirtIO to use ithreads instead of taskqueues

2013-07-04T17:50:11+00:00

Contains projects/virtio commits:

r245709:
    Each VirtIO device was scheduling its own taskqueue(9) to do the
    off-level interrupt handling. ithreads(9) is the more nature way
    to do this. The primary motivation for this work to better support
    network multiqueue.
r245710:
    virtio: Change virtqueue intr handlers to return void
r245711:
    virtio_blk: Remove interrupt taskqueue
r245721:
    vtnet: Remove interrupt taskqueue
r245722:
    virtio_scsi: Remove interrupt taskqueue
r245747:
    vtnet: Remove taskqueue fields missed in r245721

MFC after:	1 month

Import virtio base, PCI front-end, and net/block/balloon drivers.

2011-11-18T05:43:43+00:00

Tested on Qemu/KVM, VirtualBox, and BHyVe.

Currently built as modules-only on i386/amd64. Man pages not yet hooked
up, pending review.

Submitted by:	Bryan Venteicher  bryanv at daemoninthecloset dot org
Reviewed by:	bz
MFC after:	4 weeks or so