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5045 use atomic_{inc,dec}_* instead of atomic_add_*
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--- old/usr/src/uts/common/sys/aggr_impl.h
+++ new/usr/src/uts/common/sys/aggr_impl.h
1 1 /*
2 2 * CDDL HEADER START
3 3 *
4 4 * The contents of this file are subject to the terms of the
5 5 * Common Development and Distribution License (the "License").
6 6 * You may not use this file except in compliance with the License.
7 7 *
8 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 9 * or http://www.opensolaris.org/os/licensing.
10 10 * See the License for the specific language governing permissions
11 11 * and limitations under the License.
12 12 *
13 13 * When distributing Covered Code, include this CDDL HEADER in each
14 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 15 * If applicable, add the following below this CDDL HEADER, with the
16 16 * fields enclosed by brackets "[]" replaced with your own identifying
17 17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 18 *
19 19 * CDDL HEADER END
20 20 */
21 21 /*
22 22 * Copyright 2010 Sun Microsystems, Inc. All rights reserved.
23 23 * Use is subject to license terms.
24 24 */
25 25
26 26 #ifndef _SYS_AGGR_IMPL_H
27 27 #define _SYS_AGGR_IMPL_H
28 28
29 29 #include <sys/types.h>
30 30 #include <sys/cred.h>
31 31 #include <sys/mac_ether.h>
32 32 #include <sys/mac_provider.h>
33 33 #include <sys/mac_client.h>
34 34 #include <sys/mac_client_priv.h>
35 35 #include <sys/aggr_lacp.h>
36 36
37 37 #ifdef __cplusplus
38 38 extern "C" {
39 39 #endif
40 40
41 41 #ifdef _KERNEL
42 42
43 43 #define AGGR_MINOR_CTL 1 /* control interface minor */
44 44
45 45 /* flags for aggr_grp_modify() */
46 46 #define AGGR_MODIFY_POLICY 0x01
47 47 #define AGGR_MODIFY_MAC 0x02
48 48 #define AGGR_MODIFY_LACP_MODE 0x04
49 49 #define AGGR_MODIFY_LACP_TIMER 0x08
50 50
51 51 /*
52 52 * Possible value of aggr_rseudo_rx_ring_t.arr_flags. Set when the ring entry
53 53 * in the pseudo RX group is used.
54 54 */
55 55 #define MAC_PSEUDO_RING_INUSE 0x01
56 56
57 57 typedef struct aggr_unicst_addr_s {
58 58 uint8_t aua_addr[ETHERADDRL];
59 59 struct aggr_unicst_addr_s *aua_next;
60 60 } aggr_unicst_addr_t;
61 61
62 62 typedef struct aggr_pseudo_rx_ring_s {
63 63 mac_ring_handle_t arr_rh; /* filled in by aggr_fill_ring() */
64 64 struct aggr_port_s *arr_port;
65 65 mac_ring_handle_t arr_hw_rh;
66 66 uint_t arr_flags;
67 67 uint64_t arr_gen;
68 68 } aggr_pseudo_rx_ring_t;
69 69
70 70 typedef struct aggr_pseudo_rx_group_s {
71 71 struct aggr_grp_s *arg_grp; /* filled in by aggr_fill_group() */
72 72 mac_group_handle_t arg_gh; /* filled in by aggr_fill_group() */
73 73 aggr_unicst_addr_t *arg_macaddr;
74 74 aggr_pseudo_rx_ring_t arg_rings[MAX_RINGS_PER_GROUP];
75 75 uint_t arg_ring_cnt;
76 76 } aggr_pseudo_rx_group_t;
77 77
78 78 typedef struct aggr_pseudo_tx_ring_s {
79 79 mac_ring_handle_t atr_rh; /* filled in by aggr_fill_ring() */
80 80 struct aggr_port_s *atr_port;
81 81 mac_ring_handle_t atr_hw_rh;
82 82 uint_t atr_flags;
83 83 } aggr_pseudo_tx_ring_t;
84 84
85 85 typedef struct aggr_pseudo_tx_group_s {
86 86 mac_group_handle_t atg_gh; /* filled in by aggr_fill_group() */
87 87 uint_t atg_ring_cnt;
88 88 aggr_pseudo_tx_ring_t atg_rings[MAX_RINGS_PER_GROUP];
89 89 } aggr_pseudo_tx_group_t;
90 90
91 91 /*
92 92 * A link aggregation MAC port.
93 93 * Note that lp_next is protected by the lg_lock of the group the
94 94 * port is part of.
95 95 */
96 96 typedef struct aggr_port_s {
97 97 struct aggr_port_s *lp_next;
98 98 struct aggr_grp_s *lp_grp; /* back ptr to group */
99 99 datalink_id_t lp_linkid;
100 100 uint16_t lp_portid;
101 101 uint8_t lp_addr[ETHERADDRL]; /* port MAC address */
102 102 uint32_t lp_refs; /* refcount */
103 103 aggr_port_state_t lp_state;
104 104 uint32_t lp_started : 1,
105 105 lp_tx_enabled : 1,
106 106 lp_collector_enabled : 1,
107 107 lp_promisc_on : 1,
108 108 lp_no_link_update : 1,
109 109 lp_rx_grp_added : 1,
110 110 lp_tx_grp_added : 1,
111 111 lp_closing : 1,
112 112 lp_pad_bits : 24;
113 113 mac_handle_t lp_mh;
114 114 mac_client_handle_t lp_mch;
115 115 const mac_info_t *lp_mip;
116 116 mac_notify_handle_t lp_mnh;
117 117 uint_t lp_tx_idx; /* idx in group's tx array */
118 118 uint64_t lp_ifspeed;
119 119 link_state_t lp_link_state;
120 120 link_duplex_t lp_link_duplex;
121 121 uint64_t lp_stat[MAC_NSTAT];
122 122 uint64_t lp_ether_stat[ETHER_NSTAT];
123 123 aggr_lacp_port_t lp_lacp; /* LACP state */
124 124 lacp_stats_t lp_lacp_stats;
125 125 uint32_t lp_margin;
126 126 mac_promisc_handle_t lp_mphp;
127 127 mac_unicast_handle_t lp_mah;
128 128
129 129 /* List of non-primary addresses that requires promiscous mode set */
130 130 aggr_unicst_addr_t *lp_prom_addr;
131 131 /* handle of the underlying HW RX group */
132 132 mac_group_handle_t lp_hwgh;
133 133 int lp_tx_ring_cnt;
134 134 /* handles of the underlying HW TX rings */
135 135 mac_ring_handle_t *lp_tx_rings;
136 136 /*
137 137 * Handles of the pseudo TX rings. Each of them maps to
138 138 * corresponding hardware TX ring in lp_tx_rings[]. A
139 139 * pseudo TX ring is presented to aggr primary mac
140 140 * client even when underlying NIC has no TX ring.
141 141 */
142 142 mac_ring_handle_t *lp_pseudo_tx_rings;
143 143 void *lp_tx_notify_mh;
144 144 } aggr_port_t;
145 145
146 146 /*
147 147 * A link aggregation group.
148 148 *
149 149 * The following per-group flags are defined:
150 150 *
151 151 * - lg_addr_fixed: set when the MAC address has been explicitely set
152 152 * when the group was created, or by a m_unicst_set() request.
153 153 * If this flag is not set, the MAC address of the group will be
154 154 * set to the first port that is added to the group.
155 155 *
156 156 * - lg_add_set: used only when lg_addr_fixed is not set. Captures whether
157 157 * the MAC address was initialized according to the members of the group.
158 158 * When set, the lg_port field points to the port from which the
159 159 * MAC address was initialized.
160 160 *
161 161 */
162 162 typedef struct aggr_grp_s {
163 163 datalink_id_t lg_linkid;
164 164 uint16_t lg_key; /* key (group port number) */
165 165 uint32_t lg_refs; /* refcount */
166 166 uint16_t lg_nports; /* number of MAC ports */
167 167 uint8_t lg_addr[ETHERADDRL]; /* group MAC address */
168 168 uint16_t
169 169 lg_closing : 1,
170 170 lg_addr_fixed : 1, /* fixed MAC address? */
171 171 lg_started : 1, /* group started? */
172 172 lg_promisc : 1, /* in promiscuous mode? */
173 173 lg_zcopy : 1,
174 174 lg_vlan : 1,
175 175 lg_force : 1,
176 176 lg_lso : 1,
177 177 lg_pad_bits : 8;
178 178 aggr_port_t *lg_ports; /* list of configured ports */
179 179 aggr_port_t *lg_mac_addr_port;
180 180 mac_handle_t lg_mh;
181 181 zoneid_t lg_zoneid;
182 182 uint_t lg_nattached_ports;
183 183 krwlock_t lg_tx_lock;
184 184 uint_t lg_ntx_ports;
185 185 aggr_port_t **lg_tx_ports; /* array of tx ports */
186 186 uint_t lg_tx_ports_size; /* size of lg_tx_ports */
187 187 uint32_t lg_tx_policy; /* outbound policy */
188 188 uint8_t lg_mac_tx_policy;
189 189 uint64_t lg_ifspeed;
190 190 link_state_t lg_link_state;
191 191 link_duplex_t lg_link_duplex;
192 192 uint64_t lg_stat[MAC_NSTAT];
193 193 uint64_t lg_ether_stat[ETHER_NSTAT];
194 194 aggr_lacp_mode_t lg_lacp_mode; /* off, active, or passive */
195 195 Agg_t aggr; /* 802.3ad data */
196 196 uint32_t lg_hcksum_txflags;
197 197 uint_t lg_max_sdu;
198 198 uint32_t lg_margin;
199 199 mac_capab_lso_t lg_cap_lso;
200 200
201 201 /*
202 202 * The following fields are used by the LACP packets processing.
203 203 * Specifically, as the LACP packets processing is not performance
204 204 * critical, all LACP packets will be handled by a dedicated thread
205 205 * instead of in the mac_rx() call. This is to avoid the dead lock
206 206 * with mac_unicast_remove(), which holding the mac perimeter of the
207 207 * aggr, and wait for the mr_refcnt of the RX ring to drop to zero.
208 208 */
209 209 kmutex_t lg_lacp_lock;
210 210 kcondvar_t lg_lacp_cv;
211 211 mblk_t *lg_lacp_head;
212 212 mblk_t *lg_lacp_tail;
213 213 kthread_t *lg_lacp_rx_thread;
214 214 boolean_t lg_lacp_done;
215 215
216 216 aggr_pseudo_rx_group_t lg_rx_group;
217 217 aggr_pseudo_tx_group_t lg_tx_group;
218 218
219 219 kmutex_t lg_tx_flowctl_lock;
220 220 kcondvar_t lg_tx_flowctl_cv;
221 221 uint_t lg_tx_blocked_cnt;
222 222 mac_ring_handle_t *lg_tx_blocked_rings;
223 223 kthread_t *lg_tx_notify_thread;
224 224 boolean_t lg_tx_notify_done;
225 225
226 226 /*
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227 227 * The following fields are used by aggr to wait for all the
228 228 * aggr_port_notify_cb() and aggr_port_timer_thread() to finish
229 229 * before it calls mac_unregister() when the aggr is deleted.
230 230 */
231 231 kmutex_t lg_port_lock;
232 232 kcondvar_t lg_port_cv;
233 233 int lg_port_ref;
234 234 } aggr_grp_t;
235 235
236 236 #define AGGR_GRP_REFHOLD(grp) { \
237 - atomic_add_32(&(grp)->lg_refs, 1); \
237 + atomic_inc_32(&(grp)->lg_refs); \
238 238 ASSERT((grp)->lg_refs != 0); \
239 239 }
240 240
241 241 #define AGGR_GRP_REFRELE(grp) { \
242 242 ASSERT((grp)->lg_refs != 0); \
243 243 membar_exit(); \
244 - if (atomic_add_32_nv(&(grp)->lg_refs, -1) == 0) \
244 + if (atomic_dec_32_nv(&(grp)->lg_refs) == 0) \
245 245 aggr_grp_free(grp); \
246 246 }
247 247
248 248 #define AGGR_PORT_REFHOLD(port) { \
249 - atomic_add_32(&(port)->lp_refs, 1); \
249 + atomic_inc_32(&(port)->lp_refs); \
250 250 ASSERT((port)->lp_refs != 0); \
251 251 }
252 252
253 253 #define AGGR_PORT_REFRELE(port) { \
254 254 ASSERT((port)->lp_refs != 0); \
255 255 membar_exit(); \
256 - if (atomic_add_32_nv(&(port)->lp_refs, -1) == 0) \
256 + if (atomic_dec_32_nv(&(port)->lp_refs) == 0) \
257 257 aggr_port_free(port); \
258 258 }
259 259
260 260 extern dev_info_t *aggr_dip;
261 261 extern int aggr_ioc_init(void);
262 262 extern void aggr_ioc_fini(void);
263 263
264 264 typedef int (*aggr_grp_info_new_grp_fn_t)(void *, datalink_id_t, uint32_t,
265 265 uchar_t *, boolean_t, boolean_t, uint32_t, uint32_t, aggr_lacp_mode_t,
266 266 aggr_lacp_timer_t);
267 267 typedef int (*aggr_grp_info_new_port_fn_t)(void *, datalink_id_t, uchar_t *,
268 268 aggr_port_state_t, aggr_lacp_state_t *);
269 269
270 270 extern void aggr_grp_init(void);
271 271 extern void aggr_grp_fini(void);
272 272 extern int aggr_grp_create(datalink_id_t, uint32_t, uint_t, laioc_port_t *,
273 273 uint32_t, boolean_t, boolean_t, uchar_t *, aggr_lacp_mode_t,
274 274 aggr_lacp_timer_t, cred_t *);
275 275 extern int aggr_grp_delete(datalink_id_t, cred_t *);
276 276 extern void aggr_grp_free(aggr_grp_t *);
277 277
278 278 extern int aggr_grp_info(datalink_id_t, void *, aggr_grp_info_new_grp_fn_t,
279 279 aggr_grp_info_new_port_fn_t, cred_t *);
280 280 extern void aggr_grp_notify(aggr_grp_t *, uint32_t);
281 281 extern boolean_t aggr_grp_attach_port(aggr_grp_t *, aggr_port_t *);
282 282 extern boolean_t aggr_grp_detach_port(aggr_grp_t *, aggr_port_t *);
283 283 extern void aggr_grp_port_mac_changed(aggr_grp_t *, aggr_port_t *,
284 284 boolean_t *, boolean_t *);
285 285 extern int aggr_grp_add_ports(datalink_id_t, uint_t, boolean_t,
286 286 laioc_port_t *);
287 287 extern int aggr_grp_rem_ports(datalink_id_t, uint_t, laioc_port_t *);
288 288 extern boolean_t aggr_grp_update_ports_mac(aggr_grp_t *);
289 289 extern int aggr_grp_modify(datalink_id_t, uint8_t, uint32_t, boolean_t,
290 290 const uchar_t *, aggr_lacp_mode_t, aggr_lacp_timer_t);
291 291 extern void aggr_grp_multicst_port(aggr_port_t *, boolean_t);
292 292 extern uint_t aggr_grp_count(void);
293 293
294 294 extern void aggr_port_init(void);
295 295 extern void aggr_port_fini(void);
296 296 extern int aggr_port_create(aggr_grp_t *, const datalink_id_t, boolean_t,
297 297 aggr_port_t **);
298 298 extern void aggr_port_delete(aggr_port_t *);
299 299 extern void aggr_port_free(aggr_port_t *);
300 300 extern int aggr_port_start(aggr_port_t *);
301 301 extern void aggr_port_stop(aggr_port_t *);
302 302 extern int aggr_port_promisc(aggr_port_t *, boolean_t);
303 303 extern int aggr_port_unicst(aggr_port_t *);
304 304 extern int aggr_port_multicst(void *, boolean_t, const uint8_t *);
305 305 extern uint64_t aggr_port_stat(aggr_port_t *, uint_t);
306 306 extern boolean_t aggr_port_notify_link(aggr_grp_t *, aggr_port_t *);
307 307 extern void aggr_port_init_callbacks(aggr_port_t *);
308 308
309 309 extern void aggr_recv_cb(void *, mac_resource_handle_t, mblk_t *, boolean_t);
310 310
311 311 extern void aggr_tx_ring_update(void *, uintptr_t);
312 312 extern void aggr_tx_notify_thread(void *);
313 313 extern void aggr_send_port_enable(aggr_port_t *);
314 314 extern void aggr_send_port_disable(aggr_port_t *);
315 315 extern void aggr_send_update_policy(aggr_grp_t *, uint32_t);
316 316
317 317 extern void aggr_lacp_init(void);
318 318 extern void aggr_lacp_fini(void);
319 319 extern void aggr_lacp_init_port(aggr_port_t *);
320 320 extern void aggr_lacp_init_grp(aggr_grp_t *);
321 321 extern void aggr_lacp_set_mode(aggr_grp_t *, aggr_lacp_mode_t,
322 322 aggr_lacp_timer_t);
323 323 extern void aggr_lacp_update_mode(aggr_grp_t *, aggr_lacp_mode_t);
324 324 extern void aggr_lacp_update_timer(aggr_grp_t *, aggr_lacp_timer_t);
325 325 extern void aggr_lacp_rx_enqueue(aggr_port_t *, mblk_t *);
326 326 extern void aggr_lacp_port_attached(aggr_port_t *);
327 327 extern void aggr_lacp_port_detached(aggr_port_t *);
328 328 extern void aggr_port_lacp_set_mode(aggr_grp_t *, aggr_port_t *);
329 329
330 330 extern void aggr_lacp_rx_thread(void *);
331 331 extern void aggr_recv_lacp(aggr_port_t *, mac_resource_handle_t, mblk_t *);
332 332
333 333 extern void aggr_grp_port_hold(aggr_port_t *);
334 334 extern void aggr_grp_port_rele(aggr_port_t *);
335 335 extern void aggr_grp_port_wait(aggr_grp_t *);
336 336
337 337 extern int aggr_port_addmac(aggr_port_t *, const uint8_t *);
338 338 extern void aggr_port_remmac(aggr_port_t *, const uint8_t *);
339 339
340 340 extern mblk_t *aggr_ring_tx(void *, mblk_t *);
341 341 extern mblk_t *aggr_find_tx_ring(void *, mblk_t *,
342 342 uintptr_t, mac_ring_handle_t *);
343 343
344 344 #endif /* _KERNEL */
345 345
346 346 #ifdef __cplusplus
347 347 }
348 348 #endif
349 349
350 350 #endif /* _SYS_AGGR_IMPL_H */
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