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[Qemu-devel] [6249] Implement e1000 link status (Mark McLoughlin)
From: |
Anthony Liguori |
Subject: |
[Qemu-devel] [6249] Implement e1000 link status (Mark McLoughlin) |
Date: |
Thu, 08 Jan 2009 19:45:51 +0000 |
Revision: 6249
http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=6249
Author: aliguori
Date: 2009-01-08 19:45:50 +0000 (Thu, 08 Jan 2009)
Log Message:
-----------
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 <address@hidden>
Signed-off-by: Anthony Liguori <address@hidden>
Modified Paths:
--------------
trunk/hw/e1000.c
Modified: trunk/hw/e1000.c
===================================================================
--- trunk/hw/e1000.c 2009-01-08 19:45:03 UTC (rev 6248)
+++ trunk/hw/e1000.c 2009-01-08 19:45:50 UTC (rev 6249)
@@ -570,6 +570,21 @@
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 @@
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);
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