[RFC PATCH 2/4] net: Introduce model specific nic announce function

[Jason Wang <jasowang@xxxxxxxxxx>]

This patch introduce a function pointer in NetClientInfo which is called during
self announcement to do the model specific mac address announcement. Previous
method were kept for the model without its own implementation.

Signed-off-by: Jason Wang <jasowang@xxxxxxxxxx>
---
 net.h    |    2 ++
 savevm.c |   10 ++++++++--
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/net.h b/net.h
index e3f643c..4fa5603 100644
--- a/net.h
+++ b/net.h
@@ -42,6 +42,7 @@ typedef ssize_t (NetReceive)(VLANClientState *, const uint8_t *, size_t);
 typedef ssize_t (NetReceiveIOV)(VLANClientState *, const struct iovec *, int);
 typedef void (NetCleanup) (VLANClientState *);
 typedef void (LinkStatusChanged)(VLANClientState *);
+typedef void (NetAnnounce)(VLANClientState *);
 
 typedef struct NetClientInfo {
     net_client_type type;
@@ -53,6 +54,7 @@ typedef struct NetClientInfo {
     NetCleanup *cleanup;
     LinkStatusChanged *link_status_changed;
     NetPoll *poll;
+    NetAnnounce *announce;
 } NetClientInfo;
 
 struct VLANClientState {
diff --git a/savevm.c b/savevm.c
index 545d511..c16ee1b 100644
--- a/savevm.c
+++ b/savevm.c
@@ -90,10 +90,16 @@ static void qemu_announce_self_iter(NICState *nic, void *opaque)
 {
     uint8_t buf[60];
     int len;
+    NetAnnounce *func = nic->nc.info->announce;
 
-    len = announce_self_create(buf, nic->conf->macaddr.a);
+    if (func == NULL) {
+        len = announce_self_create(buf, nic->conf->macaddr.a);
 
-    qemu_send_packet_raw(&nic->nc, buf, len);
+        qemu_send_packet_raw(&nic->nc, buf, len);
+    }
+    else {
+        func(&nic->nc);
+    }
 }
 
 

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