diff options
| author | aliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162> | 2009-01-08 19:45:50 +0000 |
|---|---|---|
| committer | aliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162> | 2009-01-08 19:45:50 +0000 |
| commit | 99ed7e30cbd6862ef3bb1ebe51c8a4923d0e282b (patch) | |
| tree | e41a87104eec3a8b2cf5e468432684f48e032d6a /hw/e1000.c | |
| parent | 34b25ca74eab49cedf994193dc7727e3f2613219 (diff) | |
Implement e1000 link status (Mark McLoughlin)
On link up or down we set the E1000_STATUS_LU ("link up") bit
in the status register and set the E1000_ICR_LSC ("link
status changed") bit in the interrupt cause register before
interrupting the guest.
Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6249 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'hw/e1000.c')
| -rw-r--r-- | hw/e1000.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/hw/e1000.c b/hw/e1000.c index 09cb96a0a6..ccf9bc0e74 100644 --- a/hw/e1000.c +++ b/hw/e1000.c @@ -570,6 +570,21 @@ receive_filter(E1000State *s, const uint8_t *buf, int size) return 0; } +static void +e1000_set_link_status(VLANClientState *vc) +{ + E1000State *s = vc->opaque; + uint32_t old_status = s->mac_reg[STATUS]; + + if (vc->link_down) + s->mac_reg[STATUS] &= ~E1000_STATUS_LU; + else + s->mac_reg[STATUS] |= E1000_STATUS_LU; + + if (s->mac_reg[STATUS] != old_status) + set_ics(s, 0, E1000_ICR_LSC); +} + static int e1000_can_receive(void *opaque) { @@ -1073,6 +1088,7 @@ pci_e1000_init(PCIBus *bus, NICInfo *nd, int devfn) d->vc = qemu_new_vlan_client(nd->vlan, nd->model, nd->name, e1000_receive, e1000_can_receive, d); + d->vc->link_status_changed = e1000_set_link_status; qemu_format_nic_info_str(d->vc, d->nd->macaddr); |