From: Marco Varlese <marco.varl...@intel.com> Switch hardware offers a list of attributes that are configurable on a per port basis. This patch provides a mechanism to configure switch ports by adding an NDO for setting specific values to specific attributes. There will be a separate patch that adds the "get" functionality via another NDO and another patch that extends iproute2 to call the two new NDOs.
Signed-off-by: Marco Varlese <marco.varl...@intel.com> --- include/linux/netdevice.h | 5 ++++ include/uapi/linux/if_link.h | 15 ++++++++++++ net/core/rtnetlink.c | 54 ++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 74 insertions(+) diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index c31f74d..4881c7b 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1027,6 +1027,9 @@ typedef u16 (*select_queue_fallback_t)(struct net_device *dev, * int (*ndo_switch_port_stp_update)(struct net_device *dev, u8 state); * Called to notify switch device port of bridge port STP * state change. + * int (*ndo_switch_port_set_cfg)(struct net_device *dev, + * u32 attr, u64 value); + * Called to set specific switch ports attributes. */ struct net_device_ops { int (*ndo_init)(struct net_device *dev); @@ -1185,6 +1188,8 @@ struct net_device_ops { struct netdev_phys_item_id *psid); int (*ndo_switch_port_stp_update)(struct net_device *dev, u8 state); + int (*ndo_switch_port_set_cfg)(struct net_device *dev, + u32 attr, u64 value); #endif }; diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h index f7d0d2d..19cb51a 100644 --- a/include/uapi/linux/if_link.h +++ b/include/uapi/linux/if_link.h @@ -146,6 +146,7 @@ enum { IFLA_PHYS_PORT_ID, IFLA_CARRIER_CHANGES, IFLA_PHYS_SWITCH_ID, + IFLA_SWITCH_PORT_CFG, __IFLA_MAX }; @@ -603,4 +604,18 @@ enum { #define IFLA_HSR_MAX (__IFLA_HSR_MAX - 1) +/* Switch Port Attributes section */ + +enum { + IFLA_ATTR_UNSPEC, + IFLA_ATTR_LEARNING, + IFLA_ATTR_LOOPBACK, + IFLA_ATTR_BCAST_FLOODING, + IFLA_ATTR_UCAST_FLOODING, + IFLA_ATTR_MCAST_FLOODING, + __IFLA_ATTR_MAX +}; + +#define IFLA_ATTR_MAX (__IFLA_ATTR_MAX - 1) + #endif /* _UAPI_LINUX_IF_LINK_H */ diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index eaa057f..c0d1c45 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -1389,6 +1389,46 @@ static int validate_linkmsg(struct net_device *dev, struct nlattr *tb[]) return 0; } +#ifdef CONFIG_NET_SWITCHDEV +static int do_setswcfg(struct net_device *dev, struct nlattr *attr) +{ + int rem, err = -EINVAL; + struct nlattr *v; + const struct net_device_ops *ops = dev->netdev_ops; + + nla_for_each_nested(v, attr, rem) { + u32 op = nla_type(v); + u64 value = 0; + + switch (op) { + case IFLA_ATTR_LEARNING: + case IFLA_ATTR_LOOPBACK: + case IFLA_ATTR_BCAST_FLOODING: + case IFLA_ATTR_UCAST_FLOODING: + case IFLA_ATTR_MCAST_FLOODING: { + if (nla_len(v) < sizeof(value)) { + err = -EINVAL; + break; + } + + value = nla_get_u64(v); + err = ops->ndo_switch_port_set_cfg(dev, + op, + value); + break; + } + default: + err = -EINVAL; + break; + } + if (err) + break; + } + return err; +} + +#endif + static int do_setvfinfo(struct net_device *dev, struct nlattr *attr) { int rem, err = -EINVAL; @@ -1740,6 +1780,20 @@ static int do_setlink(const struct sk_buff *skb, status |= DO_SETLINK_NOTIFY; } } +#ifdef CONFIG_NET_SWITCHDEV + if (tb[IFLA_SWITCH_PORT_CFG]) { + err = -EOPNOTSUPP; + if (!ops->ndo_switch_port_set_cfg) + goto errout; + if (!ops->ndo_switch_parent_id_get) + goto errout; + err = do_setswcfg(dev, tb[IFLA_SWITCH_PORT_CFG]); + if (err < 0) + goto errout; + + status |= DO_SETLINK_NOTIFY; + } +#endif err = 0; errout: -- 1.8.5.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/