team: add support for per-port options

This patch allows to create per-port options. That becomes handy for all
sorts of stuff, for example for userspace driven link-state, 802.3ad
implementation and so on.

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 17 insertions, 13 deletions

diff --git a/include/linux/if_team.h b/include/linux/if_team.h
index 41163ac14ab4..6f27c841c9a8 100644
--- a/include/linux/if_team.h
+++ b/include/linux/if_team.h
@@ -71,25 +71,27 @@ enum team_option_type {
         TEAM_OPTION_TYPE_BINARY,
 };
 
+struct team_gsetter_ctx {
+        union {
+                u32 u32_val;
+                const char *str_val;
+                struct {
+                        const void *ptr;
+                        u32 len;
+                } bin_val;
+        } data;
+        struct team_port *port;
+};
+
 struct team_option {
         struct list_head list;
         const char *name;
+        bool per_port;
         enum team_option_type type;
-        int (*getter)(struct team *team, void *arg);
-        int (*setter)(struct team *team, void *arg);
-
-        /* Custom gennetlink interface related flags */
-        bool changed;
-        bool removed;
+        int (*getter)(struct team *team, struct team_gsetter_ctx *ctx);
+        int (*setter)(struct team *team, struct team_gsetter_ctx *ctx);
 };
 
-struct team_option_binary {
-        u32 data_len;
-        void *data;
-};
-
-#define team_optarg_tbinary(arg) (*((struct team_option_binary **) arg))
-
 struct team_mode {
         struct list_head list;
         const char *kind;
@@ -118,6 +120,7 @@ struct team {
         struct list_head port_list;
 
         struct list_head option_list;
+        struct list_head option_inst_list; /* list of option instances */
 
         const struct team_mode *mode;
         struct team_mode_ops ops;
@@ -224,6 +227,7 @@ enum {
         TEAM_ATTR_OPTION_TYPE,          /* u8 */
         TEAM_ATTR_OPTION_DATA,          /* dynamic */
         TEAM_ATTR_OPTION_REMOVED,       /* flag */
+        TEAM_ATTR_OPTION_PORT_IFINDEX,  /* u32 */ /* for per-port options */
 
         __TEAM_ATTR_OPTION_MAX,
         TEAM_ATTR_OPTION_MAX = __TEAM_ATTR_OPTION_MAX - 1,