e1000 supports multi-buffer packets larger than rxbuf_size.
This fixes the following (on linux):
- in guest: ifconfig eth1 mtu 16110
- in host: ifconfig tap0 mtu 16110
ping -s 16082 <guest-ip>
Red Hat bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=602205
Changes from v1:
fix buffer overflow reported by Kevin
added a patch to fix EOP spec violation reported by Juan
added a patch to fix spec violation noted by myself
Michael S. Tsirkin (3):
e1000: multi-buffer packet support
e1000: clear EOP for multi-buffer descriptors
e1000: verify we have buffers, upfront
hw/e1000.c | 61 +++++++++++++++++++++++++++++++++++++++++++++++------------
1 files changed, 48 insertions(+), 13 deletions(-)
--
1.7.3.2.91.g446ac
