bonding: add Netlink support mode option (90af2311) · Commits · e / devices / android_kernel_xiaomi_markw

drivers/net/bonding/bond_netlink.c

+56 −0

Original line number	Diff line number	Diff line
		@@ -20,6 +20,10 @@
		#include <net/rtnetlink.h>
		#include "bonding.h"

		static const struct nla_policy bond_policy[IFLA_BOND_MAX + 1] = {
		[IFLA_BOND_MODE] = { .type = NLA_U8 },
		};

		static int bond_validate(struct nlattr tb[], struct nlattr data[])
		{
		if (tb[IFLA_ADDRESS]) {
		@@ -31,11 +35,63 @@ static int bond_validate(struct nlattr tb[], struct nlattr data[])
		return 0;
		}

		static int bond_changelink(struct net_device *bond_dev,
		struct nlattr tb[], struct nlattr data[])
		{
		struct bonding *bond = netdev_priv(bond_dev);
		int err;

		if (data && data[IFLA_BOND_MODE]) {
		int mode = nla_get_u8(data[IFLA_BOND_MODE]);

		err = bond_option_mode_set(bond, mode);
		if (err)
		return err;
		}
		return 0;
		}

		static int bond_newlink(struct net src_net, struct net_device bond_dev,
		struct nlattr tb[], struct nlattr data[])
		{
		int err;

		err = bond_changelink(bond_dev, tb, data);
		if (err < 0)
		return err;

		return register_netdevice(bond_dev);
		}

		static size_t bond_get_size(const struct net_device *bond_dev)
		{
		return nla_total_size(sizeof(u8)); /* IFLA_BOND_MODE */
		}

		static int bond_fill_info(struct sk_buff *skb,
		const struct net_device *bond_dev)
		{
		struct bonding *bond = netdev_priv(bond_dev);

		if (nla_put_u8(skb, IFLA_BOND_MODE, bond->params.mode))
		goto nla_put_failure;
		return 0;

		nla_put_failure:
		return -EMSGSIZE;
		}

		struct rtnl_link_ops bond_link_ops __read_mostly = {
		.kind = "bond",
		.priv_size = sizeof(struct bonding),
		.setup = bond_setup,
		.maxtype = IFLA_BOND_MAX,
		.policy = bond_policy,
		.validate = bond_validate,
		.newlink = bond_newlink,
		.changelink = bond_changelink,
		.get_size = bond_get_size,
		.fill_info = bond_fill_info,
		.get_num_tx_queues = bond_get_num_tx_queues,
		.get_num_rx_queues = bond_get_num_tx_queues, /* Use the same number
		as for TX queues */

include/uapi/linux/if_link.h

+10 −0

Original line number	Diff line number	Diff line
		@@ -325,6 +325,16 @@ struct ifla_vxlan_port_range {
		__be16 high;
		};

		/* Bonding section */

		enum {
		IFLA_BOND_UNSPEC,
		IFLA_BOND_MODE,
		__IFLA_BOND_MAX,
		};

		#define IFLA_BOND_MAX (__IFLA_BOND_MAX - 1)

		/* SR-IOV virtual function management section */

		enum {