commit cc1f0f45425d0cca41ad421623f92bebc93a21a9
author Jason Wang <jasowang@redhat.com> Wed Jan 30 19:12:23 2013 +0800
committer Anthony Liguori <aliguori@us.ibm.com> Fri Feb 01 11:03:00 2013 -0600
tree 8015fb30e1da7eab59fbbf236f790500a47cbea0
parent b356f76de31e343121cdab3a01b39182edce9519

net: introduce qemu_get_nic()

To support multiqueue, this patch introduces a helper qemu_get_nic() to get
NICState from a NetClientState. The following patches would refactor this helper
to support multiqueue.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

hw/rtl8139.c

diff --git a/hw/rtl8139.c b/hw/rtl8139.c
index 22d24ae..b825e83 100644
--- a/hw/rtl8139.c
+++ b/hw/rtl8139.c
@@ -786,7 +786,7 @@
 
 static int rtl8139_can_receive(NetClientState *nc)
 {
-    RTL8139State *s = DO_UPCAST(NICState, nc, nc)->opaque;
+    RTL8139State *s = qemu_get_nic_opaque(nc);
     int avail;
 
     /* Receive (drop) packets if card is disabled.  */
@@ -808,7 +808,7 @@
 
 static ssize_t rtl8139_do_receive(NetClientState *nc, const uint8_t *buf, size_t size_, int do_interrupt)
 {
-    RTL8139State *s = DO_UPCAST(NICState, nc, nc)->opaque;
+    RTL8139State *s = qemu_get_nic_opaque(nc);
     /* size is the length of the buffer passed to the driver */
     int size = size_;
     const uint8_t *dot1q_buf = NULL;
@@ -3429,7 +3429,7 @@
 
 static void rtl8139_cleanup(NetClientState *nc)
 {
-    RTL8139State *s = DO_UPCAST(NICState, nc, nc)->opaque;
+    RTL8139State *s = qemu_get_nic_opaque(nc);
 
     s->nic = NULL;
 }
@@ -3451,7 +3451,7 @@
 
 static void rtl8139_set_link_status(NetClientState *nc)
 {
-    RTL8139State *s = DO_UPCAST(NICState, nc, nc)->opaque;
+    RTL8139State *s = qemu_get_nic_opaque(nc);
 
     if (nc->link_down) {
         s->BasicModeStatus &= ~0x04;