[Xen-devel] [PATCH] allow netif frontend to indicate ethernet multicast groups of interest

[David Edmondson <dme@xxxxxxx>]

# HG changeset patch
# User David Edmondson <dme@xxxxxxx>
# Date 1195652069 28800
# Node ID 30a7087e908701deb125f55a004c5841dc6c2165
# Parent  ba69fe2dce91cd7ef633b4b21706344f6be1a6de
Allow multicast address add/remove requests to be passed from the  
frontend
to the backend.

Signed-off-by: David Edmondson <dme@xxxxxxx>

diff --git a/xen/include/public/io/netif.h b/xen/include/public/io/ 
netif.h
--- a/xen/include/public/io/netif.h
+++ b/xen/include/public/io/netif.h
@@ -75,9 +75,11 @@ typedef struct netif_tx_request netif_tx
 typedef struct netif_tx_request netif_tx_request_t;

 /* Types of netif_extra_info descriptors. */
-#define XEN_NETIF_EXTRA_TYPE_NONE  (0)  /* Never used - invalid */
-#define XEN_NETIF_EXTRA_TYPE_GSO   (1)  /* u.gso */
-#define XEN_NETIF_EXTRA_TYPE_MAX   (2)
+#define XEN_NETIF_EXTRA_TYPE_NONE      (0)  /* Never used - invalid */
+#define XEN_NETIF_EXTRA_TYPE_GSO       (1)  /* u.gso */
+#define XEN_NETIF_EXTRA_TYPE_MCAST_ADD (2)  /* u.mcast */
+#define XEN_NETIF_EXTRA_TYPE_MCAST_DEL (3)  /* u.mcast */
+#define XEN_NETIF_EXTRA_TYPE_MAX       (4)

 /* netif_extra_info flags. */
 #define _XEN_NETIF_EXTRA_FLAG_MORE (0)
@@ -118,9 +120,15 @@ struct netif_extra_info {
             uint16_t features; /* XEN_NETIF_GSO_FEAT_* */
         } gso;

+        struct {
+            uint8_t addr[6]; /* Address to add/remove. */
+        } mcast;
+
         uint16_t pad[3];
     } u;
 };
+
+typedef struct netif_extra_info netif_extra_info_t;

 struct netif_tx_response {
     uint16_t id;


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