aggr_impl.h revision 2163:7ec44efa9cdb 
1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21/*
22 * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
23 * Use is subject to license terms.
24 */
25
26#ifndef	_SYS_AGGR_IMPL_H
27#define	_SYS_AGGR_IMPL_H
28
29#pragma ident	"%Z%%M%	%I%	%E% SMI"
30
31#include <sys/types.h>
32#include <sys/mac.h>
33#include <sys/aggr_lacp.h>
34
35#ifdef	__cplusplus
36extern "C" {
37#endif
38
39#ifdef _KERNEL
40
41#define	AGGR_MINOR_CTL	1		/* control interface minor */
42
43/* flags for aggr_grp_modify() */
44#define	AGGR_MODIFY_POLICY		0x01
45#define	AGGR_MODIFY_MAC			0x02
46#define	AGGR_MODIFY_LACP_MODE		0x04
47#define	AGGR_MODIFY_LACP_TIMER		0x08
48
49/*
50 * A link aggregation MAC port.
51 * Note that lp_next is protected by the lg_lock of the group the
52 * port is part of.
53 */
54typedef struct aggr_port_s {
55	struct aggr_port_s *lp_next;
56	struct aggr_grp_s *lp_grp;		/* back ptr to group */
57	char		lp_devname[MAXNAMELEN + 1];
58	uint8_t		lp_addr[ETHERADDRL];	/* port MAC address */
59	uint32_t	lp_refs;		/* refcount */
60	aggr_port_state_t lp_state;
61	uint32_t	lp_started : 1,
62			lp_tx_enabled : 1,
63			lp_collector_enabled : 1,
64			lp_promisc_on : 1,
65			lp_pad_bits : 28;
66	uint32_t	lp_closing;
67	uint_t		lp_port;
68	mac_handle_t	lp_mh;
69	const mac_info_t *lp_mip;
70	mac_notify_handle_t lp_mnh;
71	mac_rx_handle_t	lp_mrh;
72	krwlock_t	lp_lock;
73	uint_t		lp_tx_idx;		/* idx in group's tx array */
74	uint64_t	lp_ifspeed;
75	link_state_t	lp_link_state;
76	link_duplex_t	lp_link_duplex;
77	uint64_t	lp_stat[MAC_NSTAT];
78	aggr_lacp_port_t lp_lacp;		/* LACP state */
79	lacp_stats_t	lp_lacp_stats;
80	const mac_txinfo_t *lp_txinfo;
81} aggr_port_t;
82
83/*
84 * A link aggregation group.
85 *
86 * The following per-group flags are defined:
87 *
88 * - lg_addr_fixed: set when the MAC address has been explicitely set
89 *   when the group was created, or by a m_unicst_set() request.
90 *   If this flag is not set, the MAC address of the group will be
91 *   set to the first port that is added to the group.
92 *
93 * - lg_add_set: used only when lg_addr_fixed is not set. Captures whether
94 *   the MAC address was initialized according to the members of the group.
95 *   When set, the lg_port field points to the port from which the
96 *   MAC address was initialized.
97 *
98 */
99typedef struct aggr_grp_s {
100	krwlock_t	lg_lock;
101	uint16_t	lg_key;			/* key (group port number) */
102	uint32_t	lg_refs;		/* refcount */
103	uint16_t	lg_nports;		/* number of MAC ports */
104	uint8_t		lg_addr[ETHERADDRL];	/* group MAC address */
105	uint16_t
106			lg_closing : 1,
107			lg_addr_fixed : 1,	/* fixed MAC address? */
108			lg_started : 1,		/* group started? */
109			lg_promisc : 1,		/* in promiscuous mode? */
110			lg_pad_bits : 12;
111	aggr_port_t	*lg_ports;		/* list of configured ports */
112	aggr_port_t	*lg_mac_addr_port;
113	mac_t		lg_mac;
114	uint_t		lg_rx_resources;
115	uint_t		lg_nattached_ports;
116	uint_t		lg_ntx_ports;
117	aggr_port_t	**lg_tx_ports;		/* array of tx ports */
118	uint_t		lg_tx_ports_size;	/* size of lg_tx_ports */
119	uint32_t	lg_tx_policy;		/* outbound policy */
120	uint64_t	lg_ifspeed;
121	link_state_t	lg_link_state;
122	link_duplex_t	lg_link_duplex;
123	uint64_t	lg_stat[MAC_NSTAT];
124	aggr_lacp_mode_t lg_lacp_mode;		/* off, active, or passive */
125	Agg_t		aggr;			/* 802.3ad data */
126} aggr_grp_t;
127
128#define	AGGR_LACP_LOCK(grp)	mutex_enter(&(grp)->aggr.gl_lock);
129#define	AGGR_LACP_UNLOCK(grp)	mutex_exit(&(grp)->aggr.gl_lock);
130#define	AGGR_LACP_LOCK_HELD(grp) MUTEX_HELD(&(grp)->aggr.gl_lock)
131
132#define	AGGR_GRP_REFHOLD(grp) {			\
133	atomic_add_32(&(grp)->lg_refs, 1);	\
134	ASSERT((grp)->lg_refs != 0);		\
135}
136
137#define	AGGR_GRP_REFRELE(grp) {					\
138	ASSERT((grp)->lg_refs != 0);				\
139	membar_exit();						\
140	if (atomic_add_32_nv(&(grp)->lg_refs, -1) == 0)		\
141		aggr_grp_free(grp);				\
142}
143
144#define	AGGR_PORT_REFHOLD(port) {		\
145	atomic_add_32(&(port)->lp_refs, 1);	\
146	ASSERT((port)->lp_refs != 0);		\
147}
148
149#define	AGGR_PORT_REFRELE(port) {				\
150	ASSERT((port)->lp_refs != 0);				\
151	membar_exit();						\
152	if (atomic_add_32_nv(&(port)->lp_refs, -1) == 0)	\
153		aggr_port_free(port);				\
154}
155
156extern dev_info_t *aggr_dip;
157extern void aggr_ioctl(queue_t *, mblk_t *);
158
159typedef int (*aggr_grp_info_new_grp_fn_t)(void *, uint32_t, uchar_t *,
160    boolean_t, uint32_t, uint32_t, aggr_lacp_mode_t, aggr_lacp_timer_t);
161typedef int (*aggr_grp_info_new_port_fn_t)(void *, char *, uint32_t,
162    uchar_t *, aggr_port_state_t, aggr_lacp_state_t *);
163
164extern void aggr_grp_init(void);
165extern void aggr_grp_fini(void);
166extern int aggr_grp_create(uint32_t, uint_t, laioc_port_t *, uint32_t,
167    boolean_t, uchar_t *, aggr_lacp_mode_t, aggr_lacp_timer_t);
168extern int aggr_grp_delete(uint32_t);
169extern void aggr_grp_free(aggr_grp_t *);
170
171extern int aggr_grp_info(uint_t *, uint32_t, void *,
172    aggr_grp_info_new_grp_fn_t, aggr_grp_info_new_port_fn_t);
173extern void aggr_grp_notify(aggr_grp_t *, uint32_t);
174extern boolean_t aggr_grp_attach_port(aggr_grp_t *, aggr_port_t *);
175extern boolean_t aggr_grp_detach_port(aggr_grp_t *, aggr_port_t *);
176extern void aggr_grp_port_mac_changed(aggr_grp_t *, aggr_port_t *,
177    boolean_t *, boolean_t *);
178extern int aggr_grp_add_ports(uint32_t, uint_t, laioc_port_t *);
179extern int aggr_grp_rem_ports(uint32_t, uint_t, laioc_port_t *);
180extern boolean_t aggr_grp_update_ports_mac(aggr_grp_t *);
181extern int aggr_grp_modify(uint32_t, aggr_grp_t *, uint8_t, uint32_t,
182    boolean_t, const uchar_t *, aggr_lacp_mode_t, aggr_lacp_timer_t);
183extern void aggr_grp_multicst_port(aggr_port_t *, boolean_t);
184extern uint_t aggr_grp_count(void);
185
186extern void aggr_port_init(void);
187extern void aggr_port_fini(void);
188extern int aggr_port_create(const char *, uint_t, aggr_port_t **);
189extern void aggr_port_delete(aggr_port_t *);
190extern void aggr_port_free(aggr_port_t *);
191extern int aggr_port_start(aggr_port_t *);
192extern void aggr_port_stop(aggr_port_t *);
193extern int aggr_port_promisc(aggr_port_t *, boolean_t);
194extern int aggr_port_unicst(aggr_port_t *, uint8_t *);
195extern int aggr_port_multicst(void *, boolean_t, const uint8_t *);
196extern uint64_t aggr_port_stat(aggr_port_t *, enum mac_stat);
197extern boolean_t aggr_port_notify_link(aggr_grp_t *, aggr_port_t *, boolean_t);
198extern void aggr_port_init_callbacks(aggr_port_t *);
199
200extern void aggr_recv_cb(void *, mac_resource_handle_t, mblk_t *);
201
202extern mblk_t *aggr_m_tx(void *, mblk_t *);
203extern void aggr_send_port_enable(aggr_port_t *);
204extern void aggr_send_port_disable(aggr_port_t *);
205extern void aggr_send_update_policy(aggr_grp_t *, uint32_t);
206
207extern void aggr_lacp_init(void);
208extern void aggr_lacp_fini(void);
209extern void aggr_lacp_init_port(aggr_port_t *);
210extern void aggr_lacp_init_grp(aggr_grp_t *);
211extern void aggr_lacp_set_mode(aggr_grp_t *, aggr_lacp_mode_t,
212    aggr_lacp_timer_t);
213extern void aggr_lacp_update_mode(aggr_grp_t *, aggr_lacp_mode_t);
214extern void aggr_lacp_update_timer(aggr_grp_t *, aggr_lacp_timer_t);
215extern void aggr_lacp_rx(aggr_port_t *, mblk_t *);
216extern void aggr_lacp_port_attached(aggr_port_t *);
217extern void aggr_lacp_port_detached(aggr_port_t *);
218extern void aggr_lacp_policy_changed(aggr_grp_t *);
219
220#endif	/* _KERNEL */
221
222#ifdef	__cplusplus
223}
224#endif
225
226#endif	/* _SYS_AGGR_IMPL_H */
227