From 99ed7e30cbd6862ef3bb1ebe51c8a4923d0e282b Mon Sep 17 00:00:00 2001 From: aliguori Date: Thu, 8 Jan 2009 19:45:50 +0000 Subject: [PATCH] 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 Signed-off-by: Anthony Liguori git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6249 c046a42c-6fe2-441c-8c8c-71466251a162 --- hw/e1000.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) 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); -- 2.34.1