Merge branch 'switchdev-obj'

Jiri Pirko says:

====================
switchdev: bring back switchdev_obj

Second version of the patch extends to a patchset. Basically this patchset
brings object structure back which disappeared with recent Vivien's patchset.
Also it does a bit of naming changes in order to get the things in line.
Also, object id is put back into object structure.
Thanks to Scott and Vivien for review and suggestions.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 49 insertions, 44 deletions

diff --git a/net/switchdev/switchdev.c b/net/switchdev/switchdev.c
index fe82fab1d55c..6e4a4f9ad927 100644
--- a/net/switchdev/switchdev.c
+++ b/net/switchdev/switchdev.c
@@ -104,7 +104,7 @@ int switchdev_port_attr_get(struct net_device *dev, struct switchdev_attr *attr)
 	struct net_device *lower_dev;
 	struct list_head *iter;
 	struct switchdev_attr first = {
-		.id = SWITCHDEV_ATTR_UNDEFINED
+		.id = SWITCHDEV_ATTR_ID_UNDEFINED
 	};
 	int err = -EOPNOTSUPP;
 
@@ -124,7 +124,7 @@ int switchdev_port_attr_get(struct net_device *dev, struct switchdev_attr *attr)
 		err = switchdev_port_attr_get(lower_dev, attr);
 		if (err)
 			break;
-		if (first.id == SWITCHDEV_ATTR_UNDEFINED)
+		if (first.id == SWITCHDEV_ATTR_ID_UNDEFINED)
 			first = *attr;
 		else if (memcmp(&first, attr, sizeof(*attr)))
 			return -ENODATA;
@@ -270,7 +270,7 @@ int switchdev_port_attr_set(struct net_device *dev, struct switchdev_attr *attr)
 EXPORT_SYMBOL_GPL(switchdev_port_attr_set);
 
 static int __switchdev_port_obj_add(struct net_device *dev,
-				    enum switchdev_obj_id id, const void *obj,
+				    const struct switchdev_obj *obj,
 				    struct switchdev_trans *trans)
 {
 	const struct switchdev_ops *ops = dev->switchdev_ops;
@@ -279,7 +279,7 @@ static int __switchdev_port_obj_add(struct net_device *dev,
 	int err = -EOPNOTSUPP;
 
 	if (ops && ops->switchdev_port_obj_add)
-		return ops->switchdev_port_obj_add(dev, id, obj, trans);
+		return ops->switchdev_port_obj_add(dev, obj, trans);
 
 	/* Switch device port(s) may be stacked under
 	 * bond/team/vlan dev, so recurse down to add object on
@@ -287,7 +287,7 @@ static int __switchdev_port_obj_add(struct net_device *dev,
 	 */
 
 	netdev_for_each_lower_dev(dev, lower_dev, iter) {
-		err = __switchdev_port_obj_add(lower_dev, id, obj, trans);
+		err = __switchdev_port_obj_add(lower_dev, obj, trans);
 		if (err)
 			break;
 	}
@@ -308,8 +308,8 @@ static int __switchdev_port_obj_add(struct net_device *dev,
  *
  *	rtnl_lock must be held.
  */
-int switchdev_port_obj_add(struct net_device *dev, enum switchdev_obj_id id,
-			   const void *obj)
+int switchdev_port_obj_add(struct net_device *dev,
+			   const struct switchdev_obj *obj)
 {
 	struct switchdev_trans trans;
 	int err;
@@ -326,7 +326,7 @@ int switchdev_port_obj_add(struct net_device *dev, enum switchdev_obj_id id,
 	 */
 
 	trans.ph_prepare = true;
-	err = __switchdev_port_obj_add(dev, id, obj, &trans);
+	err = __switchdev_port_obj_add(dev, obj, &trans);
 	if (err) {
 		/* Prepare phase failed: abort the transaction.  Any
 		 * resources reserved in the prepare phase are
@@ -345,8 +345,8 @@ int switchdev_port_obj_add(struct net_device *dev, enum switchdev_obj_id id,
 	 */
 
 	trans.ph_prepare = false;
-	err = __switchdev_port_obj_add(dev, id, obj, &trans);
-	WARN(err, "%s: Commit of object (id=%d) failed.\n", dev->name, id);
+	err = __switchdev_port_obj_add(dev, obj, &trans);
+	WARN(err, "%s: Commit of object (id=%d) failed.\n", dev->name, obj->id);
 	switchdev_trans_items_warn_destroy(dev, &trans);
 
 	return err;
@@ -360,8 +360,8 @@ EXPORT_SYMBOL_GPL(switchdev_port_obj_add);
  *	@id: object ID
  *	@obj: object to delete
  */
-int switchdev_port_obj_del(struct net_device *dev, enum switchdev_obj_id id,
-			   const void *obj)
+int switchdev_port_obj_del(struct net_device *dev,
+			   const struct switchdev_obj *obj)
 {
 	const struct switchdev_ops *ops = dev->switchdev_ops;
 	struct net_device *lower_dev;
@@ -369,7 +369,7 @@ int switchdev_port_obj_del(struct net_device *dev, enum switchdev_obj_id id,
 	int err = -EOPNOTSUPP;
 
 	if (ops && ops->switchdev_port_obj_del)
-		return ops->switchdev_port_obj_del(dev, id, obj);
+		return ops->switchdev_port_obj_del(dev, obj);
 
 	/* Switch device port(s) may be stacked under
 	 * bond/team/vlan dev, so recurse down to delete object on
@@ -377,7 +377,7 @@ int switchdev_port_obj_del(struct net_device *dev, enum switchdev_obj_id id,
 	 */
 
 	netdev_for_each_lower_dev(dev, lower_dev, iter) {
-		err = switchdev_port_obj_del(lower_dev, id, obj);
+		err = switchdev_port_obj_del(lower_dev, obj);
 		if (err)
 			break;
 	}
@@ -394,8 +394,8 @@ EXPORT_SYMBOL_GPL(switchdev_port_obj_del);
  *	@obj: object to dump
  *	@cb: function to call with a filled object
  */
-int switchdev_port_obj_dump(struct net_device *dev, enum switchdev_obj_id id,
-			    void *obj, int (*cb)(void *obj))
+int switchdev_port_obj_dump(struct net_device *dev, struct switchdev_obj *obj,
+			    switchdev_obj_dump_cb_t *cb)
 {
 	const struct switchdev_ops *ops = dev->switchdev_ops;
 	struct net_device *lower_dev;
@@ -403,7 +403,7 @@ int switchdev_port_obj_dump(struct net_device *dev, enum switchdev_obj_id id,
 	int err = -EOPNOTSUPP;
 
 	if (ops && ops->switchdev_port_obj_dump)
-		return ops->switchdev_port_obj_dump(dev, id, obj, cb);
+		return ops->switchdev_port_obj_dump(dev, obj, cb);
 
 	/* Switch device port(s) may be stacked under
 	 * bond/team/vlan dev, so recurse down to dump objects on
@@ -411,7 +411,7 @@ int switchdev_port_obj_dump(struct net_device *dev, enum switchdev_obj_id id,
 	 */
 
 	netdev_for_each_lower_dev(dev, lower_dev, iter) {
-		err = switchdev_port_obj_dump(lower_dev, id, obj, cb);
+		err = switchdev_port_obj_dump(lower_dev, obj, cb);
 		break;
 	}
 
@@ -483,7 +483,7 @@ int call_switchdev_notifiers(unsigned long val, struct net_device *dev,
 EXPORT_SYMBOL_GPL(call_switchdev_notifiers);
 
 struct switchdev_vlan_dump {
-	struct switchdev_obj_vlan vlan;
+	struct switchdev_obj_port_vlan vlan;
 	struct sk_buff *skb;
 	u32 filter_mask;
 	u16 flags;
@@ -521,9 +521,9 @@ static int switchdev_port_vlan_dump_put(struct switchdev_vlan_dump *dump)
 	return 0;
 }
 
-static int switchdev_port_vlan_dump_cb(void *obj)
+static int switchdev_port_vlan_dump_cb(struct switchdev_obj *obj)
 {
-	struct switchdev_obj_vlan *vlan = obj;
+	struct switchdev_obj_port_vlan *vlan = SWITCHDEV_OBJ_PORT_VLAN(obj);
 	struct switchdev_vlan_dump *dump =
 		container_of(vlan, struct switchdev_vlan_dump, vlan);
 	int err = 0;
@@ -577,6 +577,7 @@ static int switchdev_port_vlan_fill(struct sk_buff *skb, struct net_device *dev,
 				    u32 filter_mask)
 {
 	struct switchdev_vlan_dump dump = {
+		.vlan.obj.id = SWITCHDEV_OBJ_ID_PORT_VLAN,
 		.skb = skb,
 		.filter_mask = filter_mask,
 	};
@@ -584,8 +585,7 @@ static int switchdev_port_vlan_fill(struct sk_buff *skb, struct net_device *dev,
 
 	if ((filter_mask & RTEXT_FILTER_BRVLAN) ||
 	    (filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED)) {
-		err = switchdev_port_obj_dump(dev, SWITCHDEV_OBJ_PORT_VLAN,
-					      &dump.vlan,
+		err = switchdev_port_obj_dump(dev, &dump.vlan.obj,
 					      switchdev_port_vlan_dump_cb);
 		if (err)
 			goto err_out;
@@ -611,7 +611,7 @@ int switchdev_port_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
 				  int nlflags)
 {
 	struct switchdev_attr attr = {
-		.id = SWITCHDEV_ATTR_PORT_BRIDGE_FLAGS,
+		.id = SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS,
 	};
 	u16 mode = BRIDGE_MODE_UNDEF;
 	u32 mask = BR_LEARNING | BR_LEARNING_SYNC;
@@ -632,7 +632,7 @@ static int switchdev_port_br_setflag(struct net_device *dev,
 				     unsigned long brport_flag)
 {
 	struct switchdev_attr attr = {
-		.id = SWITCHDEV_ATTR_PORT_BRIDGE_FLAGS,
+		.id = SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS,
 	};
 	u8 flag = nla_get_u8(nlattr);
 	int err;
@@ -699,12 +699,13 @@ static int switchdev_port_br_setlink_protinfo(struct net_device *dev,
 static int switchdev_port_br_afspec(struct net_device *dev,
 				    struct nlattr *afspec,
 				    int (*f)(struct net_device *dev,
-					     enum switchdev_obj_id id,
-					     const void *obj))
+					     const struct switchdev_obj *obj))
 {
 	struct nlattr *attr;
 	struct bridge_vlan_info *vinfo;
-	struct switchdev_obj_vlan vlan = { 0 };
+	struct switchdev_obj_port_vlan vlan = {
+		.obj.id = SWITCHDEV_OBJ_ID_PORT_VLAN,
+	};
 	int rem;
 	int err;
 
@@ -725,7 +726,7 @@ static int switchdev_port_br_afspec(struct net_device *dev,
 			vlan.vid_end = vinfo->vid;
 			if (vlan.vid_end <= vlan.vid_begin)
 				return -EINVAL;
-			err = f(dev, SWITCHDEV_OBJ_PORT_VLAN, &vlan);
+			err = f(dev, &vlan.obj);
 			if (err)
 				return err;
 			memset(&vlan, 0, sizeof(vlan));
@@ -734,7 +735,7 @@ static int switchdev_port_br_afspec(struct net_device *dev,
 				return -EINVAL;
 			vlan.vid_begin = vinfo->vid;
 			vlan.vid_end = vinfo->vid;
-			err = f(dev, SWITCHDEV_OBJ_PORT_VLAN, &vlan);
+			err = f(dev, &vlan.obj);
 			if (err)
 				return err;
 			memset(&vlan, 0, sizeof(vlan));
@@ -819,12 +820,13 @@ int switchdev_port_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
 			   struct net_device *dev, const unsigned char *addr,
 			   u16 vid, u16 nlm_flags)
 {
-	struct switchdev_obj_fdb fdb = {
+	struct switchdev_obj_port_fdb fdb = {
+		.obj.id = SWITCHDEV_OBJ_ID_PORT_FDB,
 		.addr = addr,
 		.vid = vid,
 	};
 
-	return switchdev_port_obj_add(dev, SWITCHDEV_OBJ_PORT_FDB, &fdb);
+	return switchdev_port_obj_add(dev, &fdb.obj);
 }
 EXPORT_SYMBOL_GPL(switchdev_port_fdb_add);
 
@@ -843,26 +845,27 @@ int switchdev_port_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
 			   struct net_device *dev, const unsigned char *addr,
 			   u16 vid)
 {
-	struct switchdev_obj_fdb fdb = {
+	struct switchdev_obj_port_fdb fdb = {
+		.obj.id = SWITCHDEV_OBJ_ID_PORT_FDB,
 		.addr = addr,
 		.vid = vid,
 	};
 
-	return switchdev_port_obj_del(dev, SWITCHDEV_OBJ_PORT_FDB, &fdb);
+	return switchdev_port_obj_del(dev, &fdb.obj);
 }
 EXPORT_SYMBOL_GPL(switchdev_port_fdb_del);
 
 struct switchdev_fdb_dump {
-	struct switchdev_obj_fdb fdb;
+	struct switchdev_obj_port_fdb fdb;
 	struct net_device *dev;
 	struct sk_buff *skb;
 	struct netlink_callback *cb;
 	int idx;
 };
 
-static int switchdev_port_fdb_dump_cb(void *obj)
+static int switchdev_port_fdb_dump_cb(struct switchdev_obj *obj)
 {
-	struct switchdev_obj_fdb *fdb = obj;
+	struct switchdev_obj_port_fdb *fdb = SWITCHDEV_OBJ_PORT_FDB(obj);
 	struct switchdev_fdb_dump *dump =
 		container_of(fdb, struct switchdev_fdb_dump, fdb);
 	u32 portid = NETLINK_CB(dump->cb->skb).portid;
@@ -920,14 +923,14 @@ int switchdev_port_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb,
 			    struct net_device *filter_dev, int idx)
 {
 	struct switchdev_fdb_dump dump = {
+		.fdb.obj.id = SWITCHDEV_OBJ_ID_PORT_FDB,
 		.dev = dev,
 		.skb = skb,
 		.cb = cb,
 		.idx = idx,
 	};
 
-	switchdev_port_obj_dump(dev, SWITCHDEV_OBJ_PORT_FDB, &dump.fdb,
-				switchdev_port_fdb_dump_cb);
+	switchdev_port_obj_dump(dev, &dump.fdb.obj, switchdev_port_fdb_dump_cb);
 	return dump.idx;
 }
 EXPORT_SYMBOL_GPL(switchdev_port_fdb_dump);
@@ -958,7 +961,7 @@ static struct net_device *switchdev_get_lowest_dev(struct net_device *dev)
 static struct net_device *switchdev_get_dev_by_nhs(struct fib_info *fi)
 {
 	struct switchdev_attr attr = {
-		.id = SWITCHDEV_ATTR_PORT_PARENT_ID,
+		.id = SWITCHDEV_ATTR_ID_PORT_PARENT_ID,
 	};
 	struct switchdev_attr prev_attr;
 	struct net_device *dev = NULL;
@@ -1006,6 +1009,7 @@ int switchdev_fib_ipv4_add(u32 dst, int dst_len, struct fib_info *fi,
 			   u8 tos, u8 type, u32 nlflags, u32 tb_id)
 {
 	struct switchdev_obj_ipv4_fib ipv4_fib = {
+		.obj.id = SWITCHDEV_OBJ_ID_IPV4_FIB,
 		.dst = dst,
 		.dst_len = dst_len,
 		.fi = fi,
@@ -1033,7 +1037,7 @@ int switchdev_fib_ipv4_add(u32 dst, int dst_len, struct fib_info *fi,
 	if (!dev)
 		return 0;
 
-	err = switchdev_port_obj_add(dev, SWITCHDEV_OBJ_IPV4_FIB, &ipv4_fib);
+	err = switchdev_port_obj_add(dev, &ipv4_fib.obj);
 	if (!err)
 		fi->fib_flags |= RTNH_F_OFFLOAD;
 
@@ -1057,6 +1061,7 @@ int switchdev_fib_ipv4_del(u32 dst, int dst_len, struct fib_info *fi,
 			   u8 tos, u8 type, u32 tb_id)
 {
 	struct switchdev_obj_ipv4_fib ipv4_fib = {
+		.obj.id = SWITCHDEV_OBJ_ID_IPV4_FIB,
 		.dst = dst,
 		.dst_len = dst_len,
 		.fi = fi,
@@ -1075,7 +1080,7 @@ int switchdev_fib_ipv4_del(u32 dst, int dst_len, struct fib_info *fi,
 	if (!dev)
 		return 0;
 
-	err = switchdev_port_obj_del(dev, SWITCHDEV_OBJ_IPV4_FIB, &ipv4_fib);
+	err = switchdev_port_obj_del(dev, &ipv4_fib.obj);
 	if (!err)
 		fi->fib_flags &= ~RTNH_F_OFFLOAD;
 
@@ -1107,11 +1112,11 @@ static bool switchdev_port_same_parent_id(struct net_device *a,
 					  struct net_device *b)
 {
 	struct switchdev_attr a_attr = {
-		.id = SWITCHDEV_ATTR_PORT_PARENT_ID,
+		.id = SWITCHDEV_ATTR_ID_PORT_PARENT_ID,
 		.flags = SWITCHDEV_F_NO_RECURSE,
 	};
 	struct switchdev_attr b_attr = {
-		.id = SWITCHDEV_ATTR_PORT_PARENT_ID,
+		.id = SWITCHDEV_ATTR_ID_PORT_PARENT_ID,
 		.flags = SWITCHDEV_F_NO_RECURSE,
 	};