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3563606258
STP update is just a settable port attribute, so convert switchdev_port_stp_update to an attr set. For DSA, the prepare phase is skipped and STP updates are only done in the commit phase. This is because currently the DSA drivers don't need to allocate any memory for STP updates and the STP update will not fail to HW (unless something horrible goes wrong on the MDIO bus, in which case the prepare phase wouldn't have been able to predict anyway). Signed-off-by: Scott Feldman <sfeldma@gmail.com> Acked-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
194 lines
5 KiB
C
194 lines
5 KiB
C
/*
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* include/net/switchdev.h - Switch device API
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* Copyright (c) 2014 Jiri Pirko <jiri@resnulli.us>
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* Copyright (c) 2014-2015 Scott Feldman <sfeldma@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef _LINUX_SWITCHDEV_H_
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#define _LINUX_SWITCHDEV_H_
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#include <linux/netdevice.h>
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#include <linux/notifier.h>
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#define SWITCHDEV_F_NO_RECURSE BIT(0)
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enum switchdev_trans {
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SWITCHDEV_TRANS_NONE,
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SWITCHDEV_TRANS_PREPARE,
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SWITCHDEV_TRANS_ABORT,
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SWITCHDEV_TRANS_COMMIT,
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};
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enum switchdev_attr_id {
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SWITCHDEV_ATTR_UNDEFINED,
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SWITCHDEV_ATTR_PORT_PARENT_ID,
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SWITCHDEV_ATTR_PORT_STP_STATE,
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};
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struct switchdev_attr {
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enum switchdev_attr_id id;
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enum switchdev_trans trans;
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u32 flags;
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union {
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struct netdev_phys_item_id ppid; /* PORT_PARENT_ID */
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u8 stp_state; /* PORT_STP_STATE */
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};
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};
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struct fib_info;
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/**
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* struct switchdev_ops - switchdev operations
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*
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* @switchdev_port_attr_get: Get a port attribute (see switchdev_attr).
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*
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* @switchdev_port_attr_set: Set a port attribute (see switchdev_attr).
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*
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* @switchdev_fib_ipv4_add: Called to add/modify IPv4 route to switch device.
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*
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* @switchdev_fib_ipv4_del: Called to delete IPv4 route from switch device.
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*/
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struct switchdev_ops {
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int (*switchdev_port_attr_get)(struct net_device *dev,
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struct switchdev_attr *attr);
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int (*switchdev_port_attr_set)(struct net_device *dev,
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struct switchdev_attr *attr);
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int (*switchdev_fib_ipv4_add)(struct net_device *dev, __be32 dst,
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int dst_len, struct fib_info *fi,
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u8 tos, u8 type, u32 nlflags,
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u32 tb_id);
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int (*switchdev_fib_ipv4_del)(struct net_device *dev, __be32 dst,
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int dst_len, struct fib_info *fi,
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u8 tos, u8 type, u32 tb_id);
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};
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enum switchdev_notifier_type {
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SWITCHDEV_FDB_ADD = 1,
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SWITCHDEV_FDB_DEL,
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};
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struct switchdev_notifier_info {
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struct net_device *dev;
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};
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struct switchdev_notifier_fdb_info {
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struct switchdev_notifier_info info; /* must be first */
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const unsigned char *addr;
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u16 vid;
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};
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static inline struct net_device *
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switchdev_notifier_info_to_dev(const struct switchdev_notifier_info *info)
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{
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return info->dev;
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}
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#ifdef CONFIG_NET_SWITCHDEV
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int switchdev_port_attr_get(struct net_device *dev,
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struct switchdev_attr *attr);
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int switchdev_port_attr_set(struct net_device *dev,
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struct switchdev_attr *attr);
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int register_switchdev_notifier(struct notifier_block *nb);
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int unregister_switchdev_notifier(struct notifier_block *nb);
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int call_switchdev_notifiers(unsigned long val, struct net_device *dev,
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struct switchdev_notifier_info *info);
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int switchdev_port_bridge_setlink(struct net_device *dev,
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struct nlmsghdr *nlh, u16 flags);
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int switchdev_port_bridge_dellink(struct net_device *dev,
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struct nlmsghdr *nlh, u16 flags);
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int ndo_dflt_switchdev_port_bridge_dellink(struct net_device *dev,
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struct nlmsghdr *nlh, u16 flags);
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int ndo_dflt_switchdev_port_bridge_setlink(struct net_device *dev,
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struct nlmsghdr *nlh, u16 flags);
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int switchdev_fib_ipv4_add(u32 dst, int dst_len, struct fib_info *fi,
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u8 tos, u8 type, u32 nlflags, u32 tb_id);
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int switchdev_fib_ipv4_del(u32 dst, int dst_len, struct fib_info *fi,
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u8 tos, u8 type, u32 tb_id);
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void switchdev_fib_ipv4_abort(struct fib_info *fi);
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#else
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static inline int switchdev_port_attr_get(struct net_device *dev,
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struct switchdev_attr *attr)
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{
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return -EOPNOTSUPP;
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}
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static inline int switchdev_port_attr_set(struct net_device *dev,
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struct switchdev_attr *attr)
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{
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return -EOPNOTSUPP;
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}
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static inline int register_switchdev_notifier(struct notifier_block *nb)
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{
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return 0;
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}
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static inline int unregister_switchdev_notifier(struct notifier_block *nb)
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{
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return 0;
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}
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static inline int call_switchdev_notifiers(unsigned long val,
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struct net_device *dev,
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struct switchdev_notifier_info *info)
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{
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return NOTIFY_DONE;
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}
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static inline int switchdev_port_bridge_setlink(struct net_device *dev,
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struct nlmsghdr *nlh,
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u16 flags)
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{
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return -EOPNOTSUPP;
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}
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static inline int switchdev_port_bridge_dellink(struct net_device *dev,
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struct nlmsghdr *nlh,
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u16 flags)
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{
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return -EOPNOTSUPP;
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}
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static inline int ndo_dflt_switchdev_port_bridge_dellink(struct net_device *dev,
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struct nlmsghdr *nlh,
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u16 flags)
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{
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return 0;
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}
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static inline int ndo_dflt_switchdev_port_bridge_setlink(struct net_device *dev,
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struct nlmsghdr *nlh,
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u16 flags)
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{
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return 0;
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}
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static inline int switchdev_fib_ipv4_add(u32 dst, int dst_len,
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struct fib_info *fi,
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u8 tos, u8 type,
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u32 nlflags, u32 tb_id)
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{
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return 0;
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}
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static inline int switchdev_fib_ipv4_del(u32 dst, int dst_len,
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struct fib_info *fi,
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u8 tos, u8 type, u32 tb_id)
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{
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return 0;
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}
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static inline void switchdev_fib_ipv4_abort(struct fib_info *fi)
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{
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}
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#endif
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#endif /* _LINUX_SWITCHDEV_H_ */
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