[deliverable/linux.git] / include / linux / drbd_genl.h

/*
 * General overview:
 * full generic netlink message:
 * |nlmsghdr|genlmsghdr|<payload>
 *
 * payload:
 * |optional fixed size family header|<sequence of netlink attributes>
 *
 * sequence of netlink attributes:
 * I chose to have all "top level" attributes NLA_NESTED,
 * corresponding to some real struct.
 * So we have a sequence of |tla, len|<nested nla sequence>
 *
 * nested nla sequence:
 * may be empty, or contain a sequence of netlink attributes
 * representing the struct fields.
 *
 * The tag number of any field (regardless of containing struct)
 * will be available as T_ ## field_name,
 * so you cannot have the same field name in two differnt structs.
 *
 * The tag numbers themselves are per struct, though,
 * so should always begin at 1 (not 0, that is the special "NLA_UNSPEC" type,
 * which we won't use here).
 * The tag numbers are used as index in the respective nla_policy array.
 *
 * GENL_struct(tag_name, tag_number, struct name, struct fields) - struct and policy
 *	genl_magic_struct.h
 *		generates the struct declaration,
 *		generates an entry in the tla enum,
 *	genl_magic_func.h
 *		generates an entry in the static tla policy
 *		with .type = NLA_NESTED
 *		generates the static <struct_name>_nl_policy definition,
 *		and static conversion functions
 *
 *	genl_magic_func.h
 *
 * GENL_mc_group(group)
 *	genl_magic_struct.h
 *		does nothing
 *	genl_magic_func.h
 *		defines and registers the mcast group,
 *		and provides a send helper
 *
 * GENL_notification(op_name, op_num, mcast_group, tla list)
 *	These are notifications to userspace.
 *
 *	genl_magic_struct.h
 *		generates an entry in the genl_ops enum,
 *	genl_magic_func.h
 *		does nothing
 *
 *	mcast group: the name of the mcast group this notification should be
 *	expected on
 *	tla list: the list of expected top level attributes,
 *	for documentation and sanity checking.
 *
 * GENL_op(op_name, op_num, flags and handler, tla list) - "genl operations"
 *	These are requests from userspace.
 *
 *	_op and _notification share the same "number space",
 *	op_nr will be assigned to "genlmsghdr->cmd"
 *
 *	genl_magic_struct.h
 *		generates an entry in the genl_ops enum,
 *	genl_magic_func.h
 *		generates an entry in the static genl_ops array,
 *		and static register/unregister functions to
 *		genl_register_family_with_ops().
 *
 *	flags and handler:
 *		GENL_op_init( .doit = x, .dumpit = y, .flags = something)
 *		GENL_doit(x) => .dumpit = NULL, .flags = GENL_ADMIN_PERM
 *	tla list: the list of expected top level attributes,
 *	for documentation and sanity checking.
 */

/*
 * STRUCTS
 */

/* this is sent kernel -> userland on various error conditions, and contains
 * informational textual info, which is supposedly human readable.
 * The computer relevant return code is in the drbd_genlmsghdr.
 */
GENL_struct(DRBD_NLA_CFG_REPLY, 1, drbd_cfg_reply,
		/* "arbitrary" size strings, nla_policy.len = 0 */
	__str_field(1, GENLA_F_MANDATORY,	info_text, 0)
)

/* Configuration requests typically need a context to operate on.
 * Possible keys are device minor (fits in the drbd_genlmsghdr),
 * the replication link (aka connection) name,
 * and/or the replication group (aka resource) name,
 * and the volume id within the resource. */
GENL_struct(DRBD_NLA_CFG_CONTEXT, 2, drbd_cfg_context,
	__u32_field(1, GENLA_F_MANDATORY,	ctx_volume)
	__str_field(2, GENLA_F_MANDATORY,	ctx_conn_name, 128)
)

GENL_struct(DRBD_NLA_DISK_CONF, 3, disk_conf,
	__str_field(1, GENLA_F_REQUIRED | GENLA_F_INVARIANT,	backing_dev,	128)
	__str_field(2, GENLA_F_REQUIRED | GENLA_F_INVARIANT,	meta_dev,	128)
	__u32_field(3, GENLA_F_REQUIRED | GENLA_F_INVARIANT,	meta_dev_idx)

	/* use the resize command to try and change the disk_size */
	__u64_field(4, GENLA_F_MANDATORY | GENLA_F_INVARIANT,	disk_size)
	/* we could change the max_bio_bvecs,
	 * but it won't propagate through the stack */
	__u32_field(5, GENLA_F_MANDATORY | GENLA_F_INVARIANT,	max_bio_bvecs)

	__u32_field(6, GENLA_F_MANDATORY,	on_io_error)
	__u32_field(7, GENLA_F_MANDATORY,	fencing)

	__u32_field(8,	GENLA_F_MANDATORY,	resync_rate)
	__u32_field(9,	GENLA_F_MANDATORY,	resync_after)
	__u32_field(10,	GENLA_F_MANDATORY,	al_extents)
	__u32_field(11,	GENLA_F_MANDATORY,	c_plan_ahead)
	__u32_field(12,	GENLA_F_MANDATORY,	c_delay_target)
	__u32_field(13,	GENLA_F_MANDATORY,	c_fill_target)
	__u32_field(14,	GENLA_F_MANDATORY,	c_max_rate)
	__u32_field(15,	GENLA_F_MANDATORY,	c_min_rate)

	__flg_field(16, GENLA_F_MANDATORY,	no_disk_barrier)
	__flg_field(17, GENLA_F_MANDATORY,	no_disk_flush)
	__flg_field(18, GENLA_F_MANDATORY,	no_disk_drain)
	__flg_field(19, GENLA_F_MANDATORY,	no_md_flush)

)

GENL_struct(DRBD_NLA_RESOURCE_OPTS, 4, res_opts,
	__str_field(1,	GENLA_F_MANDATORY,	cpu_mask,       32)
	__u32_field(2,	GENLA_F_MANDATORY,	on_no_data)
)

GENL_struct(DRBD_NLA_NET_CONF, 5, net_conf,
	__bin_field(1,	GENLA_F_REQUIRED | GENLA_F_INVARIANT,	my_addr,	128)
	__bin_field(2,	GENLA_F_REQUIRED | GENLA_F_INVARIANT,	peer_addr,	128)
	__str_field(3,	GENLA_F_MANDATORY | GENLA_F_SENSITIVE,
						shared_secret,	SHARED_SECRET_MAX)
	__str_field(4,	GENLA_F_MANDATORY,	cram_hmac_alg,	SHARED_SECRET_MAX)
	__str_field(5,	GENLA_F_MANDATORY,	integrity_alg,	SHARED_SECRET_MAX)
	__str_field(6,	GENLA_F_MANDATORY,	verify_alg,     SHARED_SECRET_MAX)
	__str_field(7,	GENLA_F_MANDATORY,	csums_alg,	SHARED_SECRET_MAX)
	__u32_field(8,	GENLA_F_MANDATORY,	wire_protocol)
	__u32_field(9,	GENLA_F_MANDATORY,	try_connect_int)
	__u32_field(10,	GENLA_F_MANDATORY,	timeout)
	__u32_field(11,	GENLA_F_MANDATORY,	ping_int)
	__u32_field(12,	GENLA_F_MANDATORY,	ping_timeo)
	__u32_field(13,	GENLA_F_MANDATORY,	sndbuf_size)
	__u32_field(14,	GENLA_F_MANDATORY,	rcvbuf_size)
	__u32_field(15,	GENLA_F_MANDATORY,	ko_count)
	__u32_field(16,	GENLA_F_MANDATORY,	max_buffers)
	__u32_field(17,	GENLA_F_MANDATORY,	max_epoch_size)
	__u32_field(18,	GENLA_F_MANDATORY,	unplug_watermark)
	__u32_field(19,	GENLA_F_MANDATORY,	after_sb_0p)
	__u32_field(20,	GENLA_F_MANDATORY,	after_sb_1p)
	__u32_field(21,	GENLA_F_MANDATORY,	after_sb_2p)
	__u32_field(22,	GENLA_F_MANDATORY,	rr_conflict)
	__u32_field(23,	GENLA_F_MANDATORY,	on_congestion)
	__u32_field(24,	GENLA_F_MANDATORY,	cong_fill)
	__u32_field(25,	GENLA_F_MANDATORY,	cong_extents)
	__flg_field(26, GENLA_F_MANDATORY,	two_primaries)
	__flg_field(27, GENLA_F_MANDATORY | GENLA_F_INVARIANT,	want_lose)
	__flg_field(28, GENLA_F_MANDATORY,	no_cork)
	__flg_field(29, GENLA_F_MANDATORY,	always_asbp)
	__flg_field(30, GENLA_F_MANDATORY | GENLA_F_INVARIANT,	dry_run)
	__flg_field(31,	GENLA_F_MANDATORY,	use_rle)
)

GENL_struct(DRBD_NLA_SET_ROLE_PARMS, 6, set_role_parms,
	__flg_field(1, GENLA_F_MANDATORY,	assume_uptodate)
)

GENL_struct(DRBD_NLA_RESIZE_PARMS, 7, resize_parms,
	__u64_field(1, GENLA_F_MANDATORY,	resize_size)
	__flg_field(2, GENLA_F_MANDATORY,	resize_force)
	__flg_field(3, GENLA_F_MANDATORY,	no_resync)
)

GENL_struct(DRBD_NLA_STATE_INFO, 8, state_info,
	/* the reason of the broadcast,
	 * if this is an event triggered broadcast. */
	__u32_field(1, GENLA_F_MANDATORY,	sib_reason)
	__u32_field(2, GENLA_F_REQUIRED,	current_state)
	__u64_field(3, GENLA_F_MANDATORY,	capacity)
	__u64_field(4, GENLA_F_MANDATORY,	ed_uuid)

	/* These are for broadcast from after state change work.
	 * prev_state and new_state are from the moment the state change took
	 * place, new_state is not neccessarily the same as current_state,
	 * there may have been more state changes since.  Which will be
	 * broadcasted soon, in their respective after state change work.  */
	__u32_field(5, GENLA_F_MANDATORY,	prev_state)
	__u32_field(6, GENLA_F_MANDATORY,	new_state)

	/* if we have a local disk: */
	__bin_field(7, GENLA_F_MANDATORY,	uuids, (UI_SIZE*sizeof(__u64)))
	__u32_field(8, GENLA_F_MANDATORY,	disk_flags)
	__u64_field(9, GENLA_F_MANDATORY,	bits_total)
	__u64_field(10, GENLA_F_MANDATORY,	bits_oos)
	/* and in case resync or online verify is active */
	__u64_field(11, GENLA_F_MANDATORY,	bits_rs_total)
	__u64_field(12, GENLA_F_MANDATORY,	bits_rs_failed)

	/* for pre and post notifications of helper execution */
	__str_field(13, GENLA_F_MANDATORY,	helper, 32)
	__u32_field(14, GENLA_F_MANDATORY,	helper_exit_code)
)

GENL_struct(DRBD_NLA_START_OV_PARMS, 9, start_ov_parms,
	__u64_field(1, GENLA_F_MANDATORY,	ov_start_sector)
)

GENL_struct(DRBD_NLA_NEW_C_UUID_PARMS, 10, new_c_uuid_parms,
	__flg_field(1, GENLA_F_MANDATORY, clear_bm)
)

GENL_struct(DRBD_NLA_TIMEOUT_PARMS, 11, timeout_parms,
	__u32_field(1,	GENLA_F_REQUIRED,	timeout_type)
)

GENL_struct(DRBD_NLA_DISCONNECT_PARMS, 12, disconnect_parms,
	__flg_field(1, GENLA_F_MANDATORY,	force_disconnect)
)

/*
 * Notifications and commands (genlmsghdr->cmd)
 */
GENL_mc_group(events)

	/* kernel -> userspace announcement of changes */
GENL_notification(
	DRBD_EVENT, 1, events,
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED)
	GENL_tla_expected(DRBD_NLA_STATE_INFO, GENLA_F_REQUIRED)
	GENL_tla_expected(DRBD_NLA_NET_CONF, GENLA_F_MANDATORY)
	GENL_tla_expected(DRBD_NLA_DISK_CONF, GENLA_F_MANDATORY)
	GENL_tla_expected(DRBD_NLA_SYNCER_CONF, GENLA_F_MANDATORY)
)

	/* query kernel for specific or all info */
GENL_op(
	DRBD_ADM_GET_STATUS, 2,
	GENL_op_init(
		.doit = drbd_adm_get_status,
		.dumpit = drbd_adm_get_status_all,
		/* anyone may ask for the status,
		 * it is broadcasted anyways */
	),
	/* To select the object .doit.
	 * Or a subset of objects in .dumpit. */
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_MANDATORY)
)

#if 0
	/* TO BE DONE */
	/* create or destroy resources, aka replication groups */
GENL_op(DRBD_ADM_CREATE_RESOURCE, 3, GENL_doit(drbd_adm_create_resource),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
GENL_op(DRBD_ADM_DELETE_RESOURCE, 4, GENL_doit(drbd_adm_delete_resource),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
#endif

	/* add DRBD minor devices as volumes to resources */
GENL_op(DRBD_ADM_ADD_MINOR, 5, GENL_doit(drbd_adm_add_minor),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
GENL_op(DRBD_ADM_DEL_MINOR, 6, GENL_doit(drbd_adm_delete_minor),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))

	/* add or delete replication links to resources */
GENL_op(DRBD_ADM_ADD_LINK, 7, GENL_doit(drbd_adm_create_connection),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
GENL_op(DRBD_ADM_DEL_LINK, 8, GENL_doit(drbd_adm_delete_connection),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))

GENL_op(DRBD_ADM_RESOURCE_OPTS, 9,
	GENL_doit(drbd_adm_resource_opts),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED)
	GENL_tla_expected(DRBD_NLA_RESOURCE_OPTS, GENLA_F_MANDATORY)
)

GENL_op(
	DRBD_ADM_CONNECT, 10,
	GENL_doit(drbd_adm_connect),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED)
	GENL_tla_expected(DRBD_NLA_NET_CONF, GENLA_F_REQUIRED)
)

GENL_op(
	DRBD_ADM_CHG_NET_OPTS, 29,
	GENL_doit(drbd_adm_net_opts),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED)
	GENL_tla_expected(DRBD_NLA_NET_CONF, GENLA_F_REQUIRED)
)

GENL_op(DRBD_ADM_DISCONNECT, 11, GENL_doit(drbd_adm_disconnect),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))

GENL_op(DRBD_ADM_ATTACH, 12,
	GENL_doit(drbd_adm_attach),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED)
	GENL_tla_expected(DRBD_NLA_DISK_CONF, GENLA_F_REQUIRED)
)

GENL_op(DRBD_ADM_CHG_DISK_OPTS, 28,
	GENL_doit(drbd_adm_disk_opts),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED)
	GENL_tla_expected(DRBD_NLA_DISK_OPTS, GENLA_F_REQUIRED)
)

GENL_op(
	DRBD_ADM_RESIZE, 13,
	GENL_doit(drbd_adm_resize),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED)
	GENL_tla_expected(DRBD_NLA_RESIZE_PARMS, GENLA_F_MANDATORY)
)

GENL_op(
	DRBD_ADM_PRIMARY, 14,
	GENL_doit(drbd_adm_set_role),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED)
	GENL_tla_expected(DRBD_NLA_SET_ROLE_PARMS, GENLA_F_REQUIRED)
)

GENL_op(
	DRBD_ADM_SECONDARY, 15,
	GENL_doit(drbd_adm_set_role),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED)
	GENL_tla_expected(DRBD_NLA_SET_ROLE_PARMS, GENLA_F_REQUIRED)
)

GENL_op(
	DRBD_ADM_NEW_C_UUID, 16,
	GENL_doit(drbd_adm_new_c_uuid),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED)
	GENL_tla_expected(DRBD_NLA_NEW_C_UUID_PARMS, GENLA_F_MANDATORY)
)

GENL_op(
	DRBD_ADM_START_OV, 17,
	GENL_doit(drbd_adm_start_ov),
	GENL_tla_expected(DRBD_NLA_START_OV_PARMS, GENLA_F_MANDATORY)
)

GENL_op(DRBD_ADM_DETACH,	18, GENL_doit(drbd_adm_detach),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
GENL_op(DRBD_ADM_INVALIDATE,	19, GENL_doit(drbd_adm_invalidate),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
GENL_op(DRBD_ADM_INVAL_PEER,	20, GENL_doit(drbd_adm_invalidate_peer),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
GENL_op(DRBD_ADM_PAUSE_SYNC,	21, GENL_doit(drbd_adm_pause_sync),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
GENL_op(DRBD_ADM_RESUME_SYNC,	22, GENL_doit(drbd_adm_resume_sync),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
GENL_op(DRBD_ADM_SUSPEND_IO,	23, GENL_doit(drbd_adm_suspend_io),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
GENL_op(DRBD_ADM_RESUME_IO,	24, GENL_doit(drbd_adm_resume_io),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
GENL_op(DRBD_ADM_OUTDATE,	25, GENL_doit(drbd_adm_outdate),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
GENL_op(DRBD_ADM_GET_TIMEOUT_TYPE, 26, GENL_doit(drbd_adm_get_timeout_type),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
GENL_op(DRBD_ADM_DOWN,		27, GENL_doit(drbd_adm_down),
	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
Commit	Line	Data
ec2c35ac LE	1	/*
	2	* General overview:
	3	* full generic netlink message:
	4	* \|nlmsghdr\|genlmsghdr\|<payload>
	5	*
	6	* payload:
	7	* \|optional fixed size family header\|<sequence of netlink attributes>
	8	*
	9	* sequence of netlink attributes:
	10	* I chose to have all "top level" attributes NLA_NESTED,
	11	* corresponding to some real struct.
	12	* So we have a sequence of \|tla, len\|<nested nla sequence>
	13	*
	14	* nested nla sequence:
	15	* may be empty, or contain a sequence of netlink attributes
	16	* representing the struct fields.
	17	*
	18	* The tag number of any field (regardless of containing struct)
	19	* will be available as T_ ## field_name,
	20	* so you cannot have the same field name in two differnt structs.
	21	*
	22	* The tag numbers themselves are per struct, though,
	23	* so should always begin at 1 (not 0, that is the special "NLA_UNSPEC" type,
	24	* which we won't use here).
	25	* The tag numbers are used as index in the respective nla_policy array.
	26	*
	27	* GENL_struct(tag_name, tag_number, struct name, struct fields) - struct and policy
	28	* genl_magic_struct.h
	29	* generates the struct declaration,
	30	* generates an entry in the tla enum,
	31	* genl_magic_func.h
	32	* generates an entry in the static tla policy
	33	* with .type = NLA_NESTED
	34	* generates the static <struct_name>_nl_policy definition,
	35	* and static conversion functions
	36	*
	37	* genl_magic_func.h
	38	*
	39	* GENL_mc_group(group)
	40	* genl_magic_struct.h
	41	* does nothing
	42	* genl_magic_func.h
	43	* defines and registers the mcast group,
	44	* and provides a send helper
	45	*
	46	* GENL_notification(op_name, op_num, mcast_group, tla list)
	47	* These are notifications to userspace.
	48	*
	49	* genl_magic_struct.h
	50	* generates an entry in the genl_ops enum,
	51	* genl_magic_func.h
	52	* does nothing
	53	*
	54	* mcast group: the name of the mcast group this notification should be
	55	* expected on
	56	* tla list: the list of expected top level attributes,
	57	* for documentation and sanity checking.
	58	*
	59	* GENL_op(op_name, op_num, flags and handler, tla list) - "genl operations"
	60	* These are requests from userspace.
	61	*
	62	* _op and _notification share the same "number space",
	63	* op_nr will be assigned to "genlmsghdr->cmd"
	64	*
65	* genl_magic_struct.h
66	* generates an entry in the genl_ops enum,
67	* genl_magic_func.h
68	* generates an entry in the static genl_ops array,
69	* and static register/unregister functions to
70	* genl_register_family_with_ops().
71	*
72	* flags and handler:
73	* GENL_op_init( .doit = x, .dumpit = y, .flags = something)
74	* GENL_doit(x) => .dumpit = NULL, .flags = GENL_ADMIN_PERM
75	* tla list: the list of expected top level attributes,
76	* for documentation and sanity checking.
77	*/
78
79	/*
80	* STRUCTS
81	*/
82
83	/* this is sent kernel -> userland on various error conditions, and contains
84	* informational textual info, which is supposedly human readable.
85	* The computer relevant return code is in the drbd_genlmsghdr.
86	*/
87	GENL_struct(DRBD_NLA_CFG_REPLY, 1, drbd_cfg_reply,
88	/* "arbitrary" size strings, nla_policy.len = 0 */
89	__str_field(1, GENLA_F_MANDATORY, info_text, 0)
90	)
91
92	/* Configuration requests typically need a context to operate on.
93	* Possible keys are device minor (fits in the drbd_genlmsghdr),
94	* the replication link (aka connection) name,
95	* and/or the replication group (aka resource) name,
96	* and the volume id within the resource. */
97	GENL_struct(DRBD_NLA_CFG_CONTEXT, 2, drbd_cfg_context,
ec2c35ac LE	98	__u32_field(1, GENLA_F_MANDATORY, ctx_volume)
	99	__str_field(2, GENLA_F_MANDATORY, ctx_conn_name, 128)
	100	)
	101
	102	GENL_struct(DRBD_NLA_DISK_CONF, 3, disk_conf,
f399002e LE	103	__str_field(1, GENLA_F_REQUIRED \| GENLA_F_INVARIANT, backing_dev, 128)
	104	__str_field(2, GENLA_F_REQUIRED \| GENLA_F_INVARIANT, meta_dev, 128)
	105	__u32_field(3, GENLA_F_REQUIRED \| GENLA_F_INVARIANT, meta_dev_idx)
	106
	107	/* use the resize command to try and change the disk_size */
	108	__u64_field(4, GENLA_F_MANDATORY \| GENLA_F_INVARIANT, disk_size)
	109	/* we could change the max_bio_bvecs,
	110	* but it won't propagate through the stack */
	111	__u32_field(5, GENLA_F_MANDATORY \| GENLA_F_INVARIANT, max_bio_bvecs)
	112
ec2c35ac LE	113	__u32_field(6, GENLA_F_MANDATORY, on_io_error)
ec2c35ac LE	114	__u32_field(7, GENLA_F_MANDATORY, fencing)
f399002e LE	115
	116	__u32_field(8, GENLA_F_MANDATORY, resync_rate)
	117	__u32_field(9, GENLA_F_MANDATORY, resync_after)
	118	__u32_field(10, GENLA_F_MANDATORY, al_extents)
	119	__u32_field(11, GENLA_F_MANDATORY, c_plan_ahead)
	120	__u32_field(12, GENLA_F_MANDATORY, c_delay_target)
	121	__u32_field(13, GENLA_F_MANDATORY, c_fill_target)
	122	__u32_field(14, GENLA_F_MANDATORY, c_max_rate)
	123	__u32_field(15, GENLA_F_MANDATORY, c_min_rate)
	124
	125	__flg_field(16, GENLA_F_MANDATORY, no_disk_barrier)
	126	__flg_field(17, GENLA_F_MANDATORY, no_disk_flush)
	127	__flg_field(18, GENLA_F_MANDATORY, no_disk_drain)
	128	__flg_field(19, GENLA_F_MANDATORY, no_md_flush)
	129
ec2c35ac LE	130	)
ec2c35ac LE	131
f399002e LE	132	GENL_struct(DRBD_NLA_RESOURCE_OPTS, 4, res_opts,
	133	__str_field(1, GENLA_F_MANDATORY, cpu_mask, 32)
	134	__u32_field(2, GENLA_F_MANDATORY, on_no_data)
ec2c35ac LE	135	)
	136
	137	GENL_struct(DRBD_NLA_NET_CONF, 5, net_conf,
f399002e LE	138	__bin_field(1, GENLA_F_REQUIRED \| GENLA_F_INVARIANT, my_addr, 128)
	139	__bin_field(2, GENLA_F_REQUIRED \| GENLA_F_INVARIANT, peer_addr, 128)
	140	__str_field(3, GENLA_F_MANDATORY \| GENLA_F_SENSITIVE,
ec2c35ac	141	shared_secret, SHARED_SECRET_MAX)
f399002e LE	142	__str_field(4, GENLA_F_MANDATORY, cram_hmac_alg, SHARED_SECRET_MAX)
	143	__str_field(5, GENLA_F_MANDATORY, integrity_alg, SHARED_SECRET_MAX)
	144	__str_field(6, GENLA_F_MANDATORY, verify_alg, SHARED_SECRET_MAX)
	145	__str_field(7, GENLA_F_MANDATORY, csums_alg, SHARED_SECRET_MAX)
	146	__u32_field(8, GENLA_F_MANDATORY, wire_protocol)
	147	__u32_field(9, GENLA_F_MANDATORY, try_connect_int)
	148	__u32_field(10, GENLA_F_MANDATORY, timeout)
	149	__u32_field(11, GENLA_F_MANDATORY, ping_int)
	150	__u32_field(12, GENLA_F_MANDATORY, ping_timeo)
	151	__u32_field(13, GENLA_F_MANDATORY, sndbuf_size)
	152	__u32_field(14, GENLA_F_MANDATORY, rcvbuf_size)
	153	__u32_field(15, GENLA_F_MANDATORY, ko_count)
	154	__u32_field(16, GENLA_F_MANDATORY, max_buffers)
	155	__u32_field(17, GENLA_F_MANDATORY, max_epoch_size)
	156	__u32_field(18, GENLA_F_MANDATORY, unplug_watermark)
	157	__u32_field(19, GENLA_F_MANDATORY, after_sb_0p)
	158	__u32_field(20, GENLA_F_MANDATORY, after_sb_1p)
	159	__u32_field(21, GENLA_F_MANDATORY, after_sb_2p)
	160	__u32_field(22, GENLA_F_MANDATORY, rr_conflict)
	161	__u32_field(23, GENLA_F_MANDATORY, on_congestion)
	162	__u32_field(24, GENLA_F_MANDATORY, cong_fill)
	163	__u32_field(25, GENLA_F_MANDATORY, cong_extents)
	164	__flg_field(26, GENLA_F_MANDATORY, two_primaries)
	165	__flg_field(27, GENLA_F_MANDATORY \| GENLA_F_INVARIANT, want_lose)
	166	__flg_field(28, GENLA_F_MANDATORY, no_cork)
	167	__flg_field(29, GENLA_F_MANDATORY, always_asbp)
	168	__flg_field(30, GENLA_F_MANDATORY \| GENLA_F_INVARIANT, dry_run)
	169	__flg_field(31, GENLA_F_MANDATORY, use_rle)
ec2c35ac LE	170	)
	171
	172	GENL_struct(DRBD_NLA_SET_ROLE_PARMS, 6, set_role_parms,
	173	__flg_field(1, GENLA_F_MANDATORY, assume_uptodate)
	174	)
	175
	176	GENL_struct(DRBD_NLA_RESIZE_PARMS, 7, resize_parms,
	177	__u64_field(1, GENLA_F_MANDATORY, resize_size)
	178	__flg_field(2, GENLA_F_MANDATORY, resize_force)
	179	__flg_field(3, GENLA_F_MANDATORY, no_resync)
	180	)
	181
	182	GENL_struct(DRBD_NLA_STATE_INFO, 8, state_info,
	183	/* the reason of the broadcast,
	184	* if this is an event triggered broadcast. */
	185	__u32_field(1, GENLA_F_MANDATORY, sib_reason)
	186	__u32_field(2, GENLA_F_REQUIRED, current_state)
	187	__u64_field(3, GENLA_F_MANDATORY, capacity)
	188	__u64_field(4, GENLA_F_MANDATORY, ed_uuid)
	189
	190	/* These are for broadcast from after state change work.
	191	* prev_state and new_state are from the moment the state change took
	192	* place, new_state is not neccessarily the same as current_state,
	193	* there may have been more state changes since. Which will be
	194	* broadcasted soon, in their respective after state change work. */
	195	__u32_field(5, GENLA_F_MANDATORY, prev_state)
	196	__u32_field(6, GENLA_F_MANDATORY, new_state)
	197
	198	/* if we have a local disk: */
	199	__bin_field(7, GENLA_F_MANDATORY, uuids, (UI_SIZE*sizeof(__u64)))
	200	__u32_field(8, GENLA_F_MANDATORY, disk_flags)
	201	__u64_field(9, GENLA_F_MANDATORY, bits_total)
	202	__u64_field(10, GENLA_F_MANDATORY, bits_oos)
	203	/* and in case resync or online verify is active */
	204	__u64_field(11, GENLA_F_MANDATORY, bits_rs_total)
	205	__u64_field(12, GENLA_F_MANDATORY, bits_rs_failed)
	206
	207	/* for pre and post notifications of helper execution */
	208	__str_field(13, GENLA_F_MANDATORY, helper, 32)
	209	__u32_field(14, GENLA_F_MANDATORY, helper_exit_code)
	210	)
	211
	212	GENL_struct(DRBD_NLA_START_OV_PARMS, 9, start_ov_parms,
	213	__u64_field(1, GENLA_F_MANDATORY, ov_start_sector)
	214	)
	215
	216	GENL_struct(DRBD_NLA_NEW_C_UUID_PARMS, 10, new_c_uuid_parms,
	217	__flg_field(1, GENLA_F_MANDATORY, clear_bm)
	218	)
	219
	220	GENL_struct(DRBD_NLA_TIMEOUT_PARMS, 11, timeout_parms,
	221	__u32_field(1, GENLA_F_REQUIRED, timeout_type)
	222	)
	223
	224	GENL_struct(DRBD_NLA_DISCONNECT_PARMS, 12, disconnect_parms,
	225	__flg_field(1, GENLA_F_MANDATORY, force_disconnect)
	226	)
	227
	228	/*
	229	* Notifications and commands (genlmsghdr->cmd)
	230	*/
	231	GENL_mc_group(events)
	232
	233	/* kernel -> userspace announcement of changes */
234	GENL_notification(
235	DRBD_EVENT, 1, events,
236	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED)
237	GENL_tla_expected(DRBD_NLA_STATE_INFO, GENLA_F_REQUIRED)
238	GENL_tla_expected(DRBD_NLA_NET_CONF, GENLA_F_MANDATORY)
239	GENL_tla_expected(DRBD_NLA_DISK_CONF, GENLA_F_MANDATORY)
240	GENL_tla_expected(DRBD_NLA_SYNCER_CONF, GENLA_F_MANDATORY)
241	)
242
243	/* query kernel for specific or all info */
244	GENL_op(
245	DRBD_ADM_GET_STATUS, 2,
246	GENL_op_init(
247	.doit = drbd_adm_get_status,
248	.dumpit = drbd_adm_get_status_all,
249	/* anyone may ask for the status,
250	* it is broadcasted anyways */
251	),
252	/* To select the object .doit.
253	* Or a subset of objects in .dumpit. */
254	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_MANDATORY)
255	)
256
257	#if 0
258	/* TO BE DONE */
259	/* create or destroy resources, aka replication groups */
260	GENL_op(DRBD_ADM_CREATE_RESOURCE, 3, GENL_doit(drbd_adm_create_resource),
261	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
262	GENL_op(DRBD_ADM_DELETE_RESOURCE, 4, GENL_doit(drbd_adm_delete_resource),
263	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
264	#endif
265
266	/* add DRBD minor devices as volumes to resources */
267	GENL_op(DRBD_ADM_ADD_MINOR, 5, GENL_doit(drbd_adm_add_minor),
268	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
269	GENL_op(DRBD_ADM_DEL_MINOR, 6, GENL_doit(drbd_adm_delete_minor),
270	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
271
272	/* add or delete replication links to resources */
273	GENL_op(DRBD_ADM_ADD_LINK, 7, GENL_doit(drbd_adm_create_connection),
274	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
275	GENL_op(DRBD_ADM_DEL_LINK, 8, GENL_doit(drbd_adm_delete_connection),
276	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
277
f399002e LE	278	GENL_op(DRBD_ADM_RESOURCE_OPTS, 9,
f399002e LE	279	GENL_doit(drbd_adm_resource_opts),
ec2c35ac	280	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED)
f399002e	281	GENL_tla_expected(DRBD_NLA_RESOURCE_OPTS, GENLA_F_MANDATORY)
ec2c35ac LE	282	)
	283
	284	GENL_op(
	285	DRBD_ADM_CONNECT, 10,
	286	GENL_doit(drbd_adm_connect),
	287	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED)
	288	GENL_tla_expected(DRBD_NLA_NET_CONF, GENLA_F_REQUIRED)
	289	)
	290
f399002e LE	291	GENL_op(
	292	DRBD_ADM_CHG_NET_OPTS, 29,
	293	GENL_doit(drbd_adm_net_opts),
	294	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED)
	295	GENL_tla_expected(DRBD_NLA_NET_CONF, GENLA_F_REQUIRED)
	296	)
	297
ec2c35ac LE	298	GENL_op(DRBD_ADM_DISCONNECT, 11, GENL_doit(drbd_adm_disconnect),
	299	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
	300
ec2c35ac LE	301	GENL_op(DRBD_ADM_ATTACH, 12,
	302	GENL_doit(drbd_adm_attach),
	303	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED)
	304	GENL_tla_expected(DRBD_NLA_DISK_CONF, GENLA_F_REQUIRED)
	305	)
	306
f399002e LE	307	GENL_op(DRBD_ADM_CHG_DISK_OPTS, 28,
	308	GENL_doit(drbd_adm_disk_opts),
	309	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED)
	310	GENL_tla_expected(DRBD_NLA_DISK_OPTS, GENLA_F_REQUIRED)
	311	)
	312
ec2c35ac LE	313	GENL_op(
	314	DRBD_ADM_RESIZE, 13,
	315	GENL_doit(drbd_adm_resize),
	316	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED)
	317	GENL_tla_expected(DRBD_NLA_RESIZE_PARMS, GENLA_F_MANDATORY)
	318	)
	319
ec2c35ac LE	320	GENL_op(
	321	DRBD_ADM_PRIMARY, 14,
	322	GENL_doit(drbd_adm_set_role),
	323	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED)
	324	GENL_tla_expected(DRBD_NLA_SET_ROLE_PARMS, GENLA_F_REQUIRED)
	325	)
	326
	327	GENL_op(
	328	DRBD_ADM_SECONDARY, 15,
	329	GENL_doit(drbd_adm_set_role),
	330	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED)
	331	GENL_tla_expected(DRBD_NLA_SET_ROLE_PARMS, GENLA_F_REQUIRED)
	332	)
	333
	334	GENL_op(
	335	DRBD_ADM_NEW_C_UUID, 16,
	336	GENL_doit(drbd_adm_new_c_uuid),
	337	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED)
	338	GENL_tla_expected(DRBD_NLA_NEW_C_UUID_PARMS, GENLA_F_MANDATORY)
	339	)
	340
	341	GENL_op(
	342	DRBD_ADM_START_OV, 17,
	343	GENL_doit(drbd_adm_start_ov),
	344	GENL_tla_expected(DRBD_NLA_START_OV_PARMS, GENLA_F_MANDATORY)
	345	)
	346
	347	GENL_op(DRBD_ADM_DETACH, 18, GENL_doit(drbd_adm_detach),
	348	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
	349	GENL_op(DRBD_ADM_INVALIDATE, 19, GENL_doit(drbd_adm_invalidate),
	350	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
	351	GENL_op(DRBD_ADM_INVAL_PEER, 20, GENL_doit(drbd_adm_invalidate_peer),
	352	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
	353	GENL_op(DRBD_ADM_PAUSE_SYNC, 21, GENL_doit(drbd_adm_pause_sync),
	354	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
	355	GENL_op(DRBD_ADM_RESUME_SYNC, 22, GENL_doit(drbd_adm_resume_sync),
	356	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
	357	GENL_op(DRBD_ADM_SUSPEND_IO, 23, GENL_doit(drbd_adm_suspend_io),
	358	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
	359	GENL_op(DRBD_ADM_RESUME_IO, 24, GENL_doit(drbd_adm_resume_io),
	360	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
	361	GENL_op(DRBD_ADM_OUTDATE, 25, GENL_doit(drbd_adm_outdate),
	362	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
	363	GENL_op(DRBD_ADM_GET_TIMEOUT_TYPE, 26, GENL_doit(drbd_adm_get_timeout_type),
	364	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))
85f75dd7 LE	365	GENL_op(DRBD_ADM_DOWN, 27, GENL_doit(drbd_adm_down),
85f75dd7 LE	366	GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, GENLA_F_REQUIRED))