diff options
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/devlink.c | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/net/core/devlink.c b/net/core/devlink.c index b6848b607e9c..baa45eca6b5a 100644 --- a/net/core/devlink.c +++ b/net/core/devlink.c @@ -85,6 +85,10 @@ EXPORT_SYMBOL(devlink_dpipe_header_ipv6); EXPORT_TRACEPOINT_SYMBOL_GPL(devlink_hwmsg); EXPORT_TRACEPOINT_SYMBOL_GPL(devlink_hwerr); +static const struct nla_policy devlink_function_nl_policy[DEVLINK_PORT_FUNCTION_ATTR_MAX + 1] = { + [DEVLINK_PORT_FUNCTION_ATTR_HW_ADDR] = { .type = NLA_BINARY }, +}; + static LIST_HEAD(devlink_list); /* devlink_mutex @@ -827,6 +831,67 @@ static int devlink_port_type_set(struct devlink *devlink, return -EOPNOTSUPP; } +static int +devlink_port_function_hw_addr_set(struct devlink *devlink, struct devlink_port *port, + const struct nlattr *attr, struct netlink_ext_ack *extack) +{ + const struct devlink_ops *ops; + const u8 *hw_addr; + int hw_addr_len; + int err; + + hw_addr = nla_data(attr); + hw_addr_len = nla_len(attr); + if (hw_addr_len > MAX_ADDR_LEN) { + NL_SET_ERR_MSG_MOD(extack, "Port function hardware address too long"); + return -EINVAL; + } + if (port->type == DEVLINK_PORT_TYPE_ETH) { + if (hw_addr_len != ETH_ALEN) { + NL_SET_ERR_MSG_MOD(extack, "Address must be 6 bytes for Ethernet device"); + return -EINVAL; + } + if (!is_unicast_ether_addr(hw_addr)) { + NL_SET_ERR_MSG_MOD(extack, "Non-unicast hardware address unsupported"); + return -EINVAL; + } + } + + ops = devlink->ops; + if (!ops->port_function_hw_addr_set) { + NL_SET_ERR_MSG_MOD(extack, "Port doesn't support function attributes"); + return -EOPNOTSUPP; + } + + err = ops->port_function_hw_addr_set(devlink, port, hw_addr, hw_addr_len, extack); + if (err) + return err; + + devlink_port_notify(port, DEVLINK_CMD_PORT_NEW); + return 0; +} + +static int +devlink_port_function_set(struct devlink *devlink, struct devlink_port *port, + const struct nlattr *attr, struct netlink_ext_ack *extack) +{ + struct nlattr *tb[DEVLINK_PORT_FUNCTION_ATTR_MAX + 1]; + int err; + + err = nla_parse_nested(tb, DEVLINK_PORT_FUNCTION_ATTR_MAX, attr, + devlink_function_nl_policy, extack); + if (err < 0) { + NL_SET_ERR_MSG_MOD(extack, "Fail to parse port function attributes"); + return err; + } + + attr = tb[DEVLINK_PORT_FUNCTION_ATTR_HW_ADDR]; + if (attr) + err = devlink_port_function_hw_addr_set(devlink, port, attr, extack); + + return err; +} + static int devlink_nl_cmd_port_set_doit(struct sk_buff *skb, struct genl_info *info) { @@ -842,6 +907,16 @@ static int devlink_nl_cmd_port_set_doit(struct sk_buff *skb, if (err) return err; } + + if (info->attrs[DEVLINK_ATTR_PORT_FUNCTION]) { + struct nlattr *attr = info->attrs[DEVLINK_ATTR_PORT_FUNCTION]; + struct netlink_ext_ack *extack = info->extack; + + err = devlink_port_function_set(devlink, devlink_port, attr, extack); + if (err) + return err; + } + return 0; } @@ -6758,6 +6833,7 @@ static const struct nla_policy devlink_nl_policy[DEVLINK_ATTR_MAX + 1] = { [DEVLINK_ATTR_TRAP_POLICER_ID] = { .type = NLA_U32 }, [DEVLINK_ATTR_TRAP_POLICER_RATE] = { .type = NLA_U64 }, [DEVLINK_ATTR_TRAP_POLICER_BURST] = { .type = NLA_U64 }, + [DEVLINK_ATTR_PORT_FUNCTION] = { .type = NLA_NESTED }, }; static const struct genl_ops devlink_nl_ops[] = { |