On Fri, Dec 19, 2014 at 11:09 AM, Amos Kong <ak...@redhat.com> wrote:
On Thu, Dec 18, 2014 at 10:13:07AM +0008, Jason Wang wrote:
On Thu, Dec 18, 2014 at 5:22 PM, Amos Kong <ak...@redhat.com> wrote:
>Win2012-64r2 guest doesn't set bus mastering correctly,
>it caused guest network down, this patch ignored it for
>e1000 nic for workarounding the guest issue.
>
>Patch 1 is an update version of:
>http://lists.gnu.org/archive/html/qemu-devel/2014-12/msg00048.html
>transmit packets are also defered in latest version.
>
>Amos Kong (1):
> e1000: unconditionally enable bus mastering
>
>Michael S. Tsirkin (1):
> e1000: defer packets until BM enabled
>
> hw/net/e1000.c | 34 +++++++++++++++++++++++++++++++++-
> 1 file changed, 33 insertions(+), 1 deletion(-)
>
>--
>2.1.0
Another question unrelated to this series:
Does 82540EM still supported by Win2k12?
82540EM isn't in the support list. Some users want to use emulated
e1000 to debug Windows guests. I will try other emulated nics in QEMU.
Right, but I suspect the issue may be still. But let's see.
The following link shows that 82540EM were not supported in Win2k12.
https://downloadcenter.intel.com/SearchResult.aspx?lang=eng&ProdId=983
The oldest 825x card supported by 2k12 seems 82574.
https://downloadcenter.intel.com/Detail_Desc.aspx?DwnldID=21694&lang=eng&ProdId=3189
If yes, workaround a buggy driver may be endless work in the future.
I think so.
--
Amos.
