pci,net,pc enhancements

This includes some fixes and enhancements that accumulated in my tree:
 pci fixes by dkoch, virtio-net enhancements by akong and mst,
 and a fix for xen pc by mst.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'mst/tags/for_anthony' into staging

pci,net,pc enhancements

This includes some fixes and enhancements that accumulated in my tree:
pci fixes by dkoch, virtio-net enhancements by akong and mst,
and a fix for xen pc by mst.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Wed 17 Jul 2013 04:44:45 AM CDT using RSA key ID D28D5469
# gpg: Can't check signature: public key not found

# By Don Koch (2) and others
# Via Michael S. Tsirkin
* mst/tags/for_anthony:
  pc: don't access fw cfg if NULL
  virtio-net: add feature bit for any header s/g
  net: add support of mac-programming over macvtap in QEMU side
  pci: fix BRDIGE typo
  pci-bridge: update mappings for migration/restore

Message-id: 1374054430-21966-1-git-send-email-mst@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

qmp-commands.hx

@@ -3046,4 +3046,67 @@ Example:
 -> { "execute": "chardev-remove", "arguments": { "id" : "foo" } }
 <- { "return": {} }
 
+EQMP
+    {
+        .name       = "query-rx-filter",
+        .args_type  = "name:s?",
+        .mhandler.cmd_new = qmp_marshal_input_query_rx_filter,
+    },
+
+SQMP
+query-rx-filter
+---------------
+
+Show rx-filter information.
+
+Returns a json-array of rx-filter information for all NICs (or for the
+given NIC), returning an error if the given NIC doesn't exist, or
+given NIC doesn't support rx-filter querying, or given net client
+isn't a NIC.
+
+The query will clear the event notification flag of each NIC, then qemu
+will start to emit event to QMP monitor.
+
+Each array entry contains the following:
+
+- "name": net client name (json-string)
+- "promiscuous": promiscuous mode is enabled (json-bool)
+- "multicast": multicast receive state (one of 'normal', 'none', 'all')
+- "unicast": unicast receive state  (one of 'normal', 'none', 'all')
+- "broadcast-allowed": allow to receive broadcast (json-bool)
+- "multicast-overflow": multicast table is overflowed (json-bool)
+- "unicast-overflow": unicast table is overflowed (json-bool)
+- "main-mac": main macaddr string (json-string)
+- "vlan-table": a json-array of active vlan id
+- "unicast-table": a json-array of unicast macaddr string
+- "multicast-table": a json-array of multicast macaddr string
+
+Example:
+
+-> { "execute": "query-rx-filter", "arguments": { "name": "vnet0" } }
+<- { "return": [
+        {
+            "promiscuous": true,
+            "name": "vnet0",
+            "main-mac": "52:54:00:12:34:56",
+            "unicast": "normal",
+            "vlan-table": [
+                4,
+                0
+            ],
+            "unicast-table": [
+            ],
+            "multicast": "normal",
+            "multicast-overflow": false,
+            "unicast-overflow": false,
+            "multicast-table": [
+                "01:00:5e:00:00:01",
+                "33:33:00:00:00:01",
+                "33:33:ff:12:34:56"
+            ],
+            "broadcast-allowed": false
+        }
+      ]
+   }
+
 EQMP