[ipxe-devel] [PATCH 0/4] [virtio] Virtqueue fixes

Ladi Prosek lprosek at redhat.com
Fri Dec 16 14:30:01 GMT 2016


This series was prompted by the issue reported in:
http://lists.ipxe.org/pipermail/ipxe-devel/2016-December/005317.html

As it turns out, neither legacy nor modern iPXE virtio implementation
currently works well with queue sizes >256.

In patch 1, modern virtio is fixed to correctly negotiate the queue
size. In patch 4, legacy virtio is fixed to accept whatever queue size
is declared by the host.

 src/drivers/bus/virtio-pci.c   | 70 +++++++++++++++++++++++++++++-------------
 src/drivers/net/virtio-net.c   | 31 ++++++++++++-------
 src/include/ipxe/virtio-pci.h  |  2 ++
 src/include/ipxe/virtio-ring.h | 12 +++-----
 4 files changed, 75 insertions(+), 40 deletions(-)

Thanks!
Ladi


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