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e1000: Preserve link state across device reset
authorJan Kiszka <jan.kiszka@siemens.com>
Tue, 24 Jan 2012 12:47:46 +0000 (13:47 +0100)
committerStefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Fri, 27 Jan 2012 06:20:37 +0000 (06:20 +0000)
A device reset does not affect the link state, only set_link does.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
hw/e1000.c

index 86c5416..76e736f 100644 (file)
@@ -1133,6 +1133,11 @@ static void e1000_reset(void *opaque)
     memmove(d->mac_reg, mac_reg_init, sizeof mac_reg_init);
     d->rxbuf_min_shift = 1;
     memset(&d->tx, 0, sizeof d->tx);
+
+    if (d->nic->nc.link_down) {
+        d->mac_reg[STATUS] &= ~E1000_STATUS_LU;
+        d->phy_reg[PHY_STATUS] &= ~MII_SR_LINK_STATUS;
+    }
 }
 
 static NetClientInfo net_e1000_info = {