@@ -352,6 +352,16 @@ fcs_len(E1000State *s)
}
static void
+e1000_send_packet(E1000State *s, const uint8_t *buf, int size)
+{
+ if (s->phy_reg[PHY_CTRL] & MII_CR_LOOPBACK) {
+ s->nic->nc.info->receive(&s->nic->nc, buf, size);
+ } else {
+ qemu_send_packet(&s->nic->nc, buf, size);
+ }
+}
+
+static void
xmit_seg(E1000State *s)
{
uint16_t len, *sp;
@@ -400,9 +410,9 @@ xmit_seg(E1000State *s)
memmove(tp->vlan, tp->data, 4);
memmove(tp->data, tp->data + 4, 8);
memcpy(tp->data + 8, tp->vlan_header, 4);
- qemu_send_packet(&s->nic->nc, tp->vlan, tp->size + 4);
+ e1000_send_packet(s, tp->vlan, tp->size + 4);
} else
- qemu_send_packet(&s->nic->nc, tp->data, tp->size);
+ e1000_send_packet(s, tp->data, tp->size);
s->mac_reg[TPT]++;
s->mac_reg[GPTC]++;
n = s->mac_reg[TOTL];
The missing of loopback mode prevent the running of self diagnosis program in guest. This patch adds this support. After this patch, loopback test of ethtool were passed in guest. Signed-off-by: Jason Wang <jasowang@redhat.com> --- hw/e1000.c | 14 ++++++++++++-- 1 files changed, 12 insertions(+), 2 deletions(-)