1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause OR GPL-2.0
3 *
4 * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
5 * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
6 * Copyright (c) 2004 Voltaire, Inc. All rights reserved.
7 *
8 * This software is available to you under a choice of one of two
9 * licenses. You may choose to be licensed under the terms of the GNU
10 * General Public License (GPL) Version 2, available from the file
11 * COPYING in the main directory of this source tree, or the
12 * OpenIB.org BSD license below:
13 *
14 * Redistribution and use in source and binary forms, with or
15 * without modification, are permitted provided that the following
16 * conditions are met:
17 *
18 * - Redistributions of source code must retain the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer.
21 *
22 * - Redistributions in binary form must reproduce the above
23 * copyright notice, this list of conditions and the following
24 * disclaimer in the documentation and/or other materials
25 * provided with the distribution.
26 *
27 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
28 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
29 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
30 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
31 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
32 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
33 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
34 * SOFTWARE.
35 */
36
37 #ifndef _IPOIB_H
38 #define _IPOIB_H
39
40 #define LINUXKPI_PARAM_PREFIX ipoib_
41
42 #include "opt_inet.h"
43 #include "opt_inet6.h"
44 #include "opt_ofed.h"
45
46 #include <sys/param.h>
47 #include <sys/systm.h>
48 #include <sys/kernel.h>
49 #include <sys/lock.h>
50 #include <sys/malloc.h>
51 #include <sys/mbuf.h>
52 #include <sys/random.h>
53 #include <sys/rwlock.h>
54 #include <sys/socket.h>
55 #include <sys/sockio.h>
56 #include <sys/sysctl.h>
57
58 #include <net/if.h>
59 #include <net/if_var.h>
60 #include <net/if_arp.h>
61 #include <net/netisr.h>
62 #include <net/route.h>
63 #include <net/if_llc.h>
64 #include <net/if_dl.h>
65 #include <net/if_types.h>
66 #include <net/bpf.h>
67 #include <net/if_llatbl.h>
68 #include <net/vnet.h>
69
70 #if defined(INET) || defined(INET6)
71 #include <netinet/in.h>
72 #include <netinet/in_var.h>
73 #include <netinet/if_ether.h>
74 #include <netinet/ip_var.h>
75 #endif
76 #ifdef INET6
77 #include <netinet6/nd6.h>
78 #endif
79
80 #include <security/mac/mac_framework.h>
81
82 #include <linux/list.h>
83
84 #include <linux/workqueue.h>
85 #include <linux/kref.h>
86 #include <linux/mutex.h>
87 #include <linux/rbtree.h>
88
89 #include <asm/atomic.h>
90
91 #include <rdma/ib_verbs.h>
92 #include <rdma/ib_pack.h>
93 #include <rdma/ib_sa.h>
94
95 /* constants */
96
97 #define INFINIBAND_ALEN 20 /* Octets in IPoIB HW addr */
98
99 #ifdef IPOIB_CM
100 #define CONFIG_INFINIBAND_IPOIB_CM
101 #endif
102
103 #ifdef IPOIB_DEBUG
104 #define CONFIG_INFINIBAND_IPOIB_DEBUG
105 #define CONFIG_INFINIBAND_IPOIB_DEBUG_DATA
106 #endif
107
108 enum ipoib_flush_level {
109 IPOIB_FLUSH_LIGHT,
110 IPOIB_FLUSH_NORMAL,
111 IPOIB_FLUSH_HEAVY
112 };
113
114 enum {
115 IPOIB_ENCAP_LEN = 4,
116 IPOIB_HEADER_LEN = IPOIB_ENCAP_LEN + INFINIBAND_ALEN,
117 IPOIB_UD_MAX_MTU = 4 * 1024,
118 IPOIB_UD_RX_SG = 2, /* packet header and one cluster */
119 IPOIB_UD_TX_SG = (IPOIB_UD_MAX_MTU / MCLBYTES) + 2,
120 IPOIB_CM_MAX_MTU = (64 * 1024),
121 IPOIB_CM_TX_SG = (IPOIB_CM_MAX_MTU / MCLBYTES) + 2,
122 IPOIB_CM_RX_SG = (IPOIB_CM_MAX_MTU / MCLBYTES) + 2,
123 IPOIB_RX_RING_SIZE = 256,
124 IPOIB_TX_RING_SIZE = 128,
125 IPOIB_MAX_RX_SG = MAX(IPOIB_CM_RX_SG, IPOIB_UD_RX_SG),
126 IPOIB_MAX_TX_SG = MAX(IPOIB_CM_TX_SG, IPOIB_UD_TX_SG),
127 IPOIB_MAX_QUEUE_SIZE = 8192,
128 IPOIB_MIN_QUEUE_SIZE = 2,
129 IPOIB_CM_MAX_CONN_QP = 4096,
130
131 IPOIB_NUM_WC = 4,
132
133 IPOIB_MAX_PATH_REC_QUEUE = 16,
134 IPOIB_MAX_MCAST_QUEUE = 16,
135
136 IPOIB_FLAG_OPER_UP = 0,
137 IPOIB_FLAG_INITIALIZED = 1,
138 IPOIB_FLAG_ADMIN_UP = 2,
139 IPOIB_PKEY_ASSIGNED = 3,
140 IPOIB_PKEY_STOP = 4,
141 IPOIB_FLAG_SUBINTERFACE = 5,
142 IPOIB_MCAST_RUN = 6,
143 IPOIB_STOP_REAPER = 7,
144 IPOIB_FLAG_UMCAST = 10,
145 IPOIB_FLAG_CSUM = 11,
146
147 IPOIB_MAX_BACKOFF_SECONDS = 16,
148
149 IPOIB_MCAST_FLAG_FOUND = 0, /* used in set_multicast_list */
150 IPOIB_MCAST_FLAG_SENDONLY = 1,
151 IPOIB_MCAST_FLAG_BUSY = 2, /* joining or already joined */
152 IPOIB_MCAST_FLAG_ATTACHED = 3,
153
154 IPOIB_MAX_LRO_DESCRIPTORS = 8,
155 IPOIB_LRO_MAX_AGGR = 64,
156
157 MAX_SEND_CQE = 16,
158 IPOIB_CM_COPYBREAK = 256,
159 };
160
161 #define IPOIB_OP_RECV (1ul << 31)
162 #ifdef CONFIG_INFINIBAND_IPOIB_CM
163 #define IPOIB_OP_CM (1ul << 30)
164 #else
165 #define IPOIB_OP_CM (0)
166 #endif
167
168 /* structs */
169
170 struct ipoib_header {
171 u8 hwaddr[INFINIBAND_ALEN];
172 __be16 proto;
173 u16 reserved;
174 };
175
176 struct ipoib_pseudoheader {
177 u8 hwaddr[INFINIBAND_ALEN];
178 };
179
180 /* Used for all multicast joins (broadcast, IPv4 mcast and IPv6 mcast) */
181 struct ipoib_mcast {
182 struct ib_sa_mcmember_rec mcmember;
183 struct ib_sa_multicast *mc;
184 struct ipoib_ah *ah;
185
186 struct rb_node rb_node;
187 struct list_head list;
188
189 unsigned long created;
190 unsigned long backoff;
191
192 unsigned long flags;
193 unsigned char logcount;
194
195 struct ifqueue pkt_queue;
196
197 struct ipoib_dev_priv *priv;
198 };
199
200 struct ipoib_cm_rx_buf {
201 struct mbuf *mb;
202 u64 mapping[IPOIB_CM_RX_SG];
203 };
204
205 struct ipoib_cm_tx_buf {
206 struct mbuf *mb;
207 u64 mapping[IPOIB_CM_TX_SG];
208 };
209
210 struct ipoib_rx_buf {
211 struct mbuf *mb;
212 u64 mapping[IPOIB_UD_RX_SG];
213 };
214
215 struct ipoib_tx_buf {
216 struct mbuf *mb;
217 u64 mapping[IPOIB_UD_TX_SG];
218 };
219
220 struct ib_cm_id;
221
222 struct ipoib_cm_data {
223 __be32 qpn; /* High byte MUST be ignored on receive */
224 __be32 mtu;
225 };
226
227 /*
228 * Quoting 10.3.1 Queue Pair and EE Context States:
229 *
230 * Note, for QPs that are associated with an SRQ, the Consumer should take the
231 * QP through the Error State before invoking a Destroy QP or a Modify QP to the
232 * Reset State. The Consumer may invoke the Destroy QP without first performing
233 * a Modify QP to the Error State and waiting for the Affiliated Asynchronous
234 * Last WQE Reached Event. However, if the Consumer does not wait for the
235 * Affiliated Asynchronous Last WQE Reached Event, then WQE and Data Segment
236 * leakage may occur. Therefore, it is good programming practice to tear down a
237 * QP that is associated with an SRQ by using the following process:
238 *
239 * - Put the QP in the Error State
240 * - Wait for the Affiliated Asynchronous Last WQE Reached Event;
241 * - either:
242 * drain the CQ by invoking the Poll CQ verb and either wait for CQ
243 * to be empty or the number of Poll CQ operations has exceeded
244 * CQ capacity size;
245 * - or
246 * post another WR that completes on the same CQ and wait for this
247 * WR to return as a WC;
248 * - and then invoke a Destroy QP or Reset QP.
249 *
250 * We use the second option and wait for a completion on the
251 * same CQ before destroying QPs attached to our SRQ.
252 */
253
254 enum ipoib_cm_state {
255 IPOIB_CM_RX_LIVE,
256 IPOIB_CM_RX_ERROR, /* Ignored by stale task */
257 IPOIB_CM_RX_FLUSH /* Last WQE Reached event observed */
258 };
259
260 struct ipoib_cm_rx {
261 struct ib_cm_id *id;
262 struct ib_qp *qp;
263 struct ipoib_cm_rx_buf *rx_ring;
264 struct list_head list;
265 struct ipoib_dev_priv *priv;
266 unsigned long jiffies;
267 enum ipoib_cm_state state;
268 int recv_count;
269 };
270
271 struct ipoib_cm_tx {
272 struct ib_cm_id *id;
273 struct ib_qp *qp;
274 struct list_head list;
275 struct ipoib_dev_priv *priv;
276 struct ipoib_path *path;
277 struct ipoib_cm_tx_buf *tx_ring;
278 unsigned tx_head;
279 unsigned tx_tail;
280 unsigned long flags;
281 u32 mtu; /* remote specified mtu, with grh. */
282 };
283
284 struct ipoib_cm_dev_priv {
285 struct ib_srq *srq;
286 struct ipoib_cm_rx_buf *srq_ring;
287 struct ib_cm_id *id;
288 struct list_head passive_ids; /* state: LIVE */
289 struct list_head rx_error_list; /* state: ERROR */
290 struct list_head rx_flush_list; /* state: FLUSH, drain not started */
291 struct list_head rx_drain_list; /* state: FLUSH, drain started */
292 struct list_head rx_reap_list; /* state: FLUSH, drain done */
293 struct work_struct start_task;
294 struct work_struct reap_task;
295 struct work_struct mb_task;
296 struct work_struct rx_reap_task;
297 struct delayed_work stale_task;
298 struct ifqueue mb_queue;
299 struct list_head start_list;
300 struct list_head reap_list;
301 struct ib_sge rx_sge[IPOIB_CM_RX_SG];
302 struct ib_recv_wr rx_wr;
303 int nonsrq_conn_qp;
304 int max_cm_mtu; /* Actual buf size. */
305 int num_frags;
306 };
307
308 struct ipoib_ethtool_st {
309 u16 coalesce_usecs;
310 u16 max_coalesced_frames;
311 };
312
313 /*
314 * Device private locking: network stack tx_lock protects members used
315 * in TX fast path, lock protects everything else. lock nests inside
316 * of tx_lock (ie tx_lock must be acquired first if needed).
317 */
318 struct ipoib_dev_priv {
319 spinlock_t lock;
320 spinlock_t drain_lock;
321
322 if_t dev;
323
324 u8 broadcastaddr[INFINIBAND_ALEN];
325
326 unsigned long flags;
327
328 int gone;
329 int unit;
330
331 struct mutex vlan_mutex;
332
333 struct rb_root path_tree;
334 struct list_head path_list;
335
336 struct ipoib_mcast *broadcast;
337 struct list_head multicast_list;
338 struct rb_root multicast_tree;
339
340 struct delayed_work pkey_poll_task;
341 struct delayed_work mcast_task;
342 struct work_struct carrier_on_task;
343 struct work_struct flush_light;
344 struct work_struct flush_normal;
345 struct work_struct flush_heavy;
346 struct work_struct restart_task;
347 struct delayed_work ah_reap_task;
348
349 struct ib_device *ca;
350 u8 port;
351 u16 pkey;
352 u16 pkey_index;
353 struct ib_pd *pd;
354 struct ib_cq *recv_cq;
355 struct ib_cq *send_cq;
356 struct ib_qp *qp;
357 u32 qkey;
358
359 union ib_gid local_gid;
360 u16 local_lid;
361
362 unsigned int admin_mtu; /* User selected MTU, no GRH. */
363 unsigned int mcast_mtu; /* Minus GRH bytes, from mcast group. */
364 unsigned int max_ib_mtu; /* Without header, actual buf size. */
365
366 struct ipoib_rx_buf *rx_ring;
367
368 struct ipoib_tx_buf *tx_ring;
369 unsigned tx_head;
370 unsigned tx_tail;
371 struct ib_sge tx_sge[IPOIB_MAX_TX_SG];
372 struct ib_ud_wr tx_wr;
373 unsigned tx_outstanding;
374 struct ib_wc send_wc[MAX_SEND_CQE];
375
376 struct ib_recv_wr rx_wr;
377 struct ib_sge rx_sge[IPOIB_MAX_RX_SG];
378
379 struct ib_wc ibwc[IPOIB_NUM_WC];
380
381 struct list_head dead_ahs;
382
383 struct ib_event_handler event_handler;
384
385 if_t parent;
386 struct list_head child_intfs;
387 struct list_head list;
388
389 #ifdef CONFIG_INFINIBAND_IPOIB_CM
390 struct ipoib_cm_dev_priv cm;
391 #endif
392
393 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
394 struct list_head fs_list;
395 struct dentry *mcg_dentry;
396 struct dentry *path_dentry;
397 #endif
398 int hca_caps;
399 struct ipoib_ethtool_st ethtool;
400 struct timer_list poll_timer;
401 };
402
403 struct ipoib_ah {
404 struct ipoib_dev_priv *priv;
405 struct ib_ah *ah;
406 struct list_head list;
407 struct kref ref;
408 unsigned last_send;
409 };
410
411 struct ipoib_path {
412 struct ipoib_dev_priv *priv;
413 struct rb_node rb_node;
414 struct list_head list;
415 #ifdef CONFIG_INFINIBAND_IPOIB_CM
416 uint8_t hwaddr[INFINIBAND_ALEN];
417 struct ipoib_cm_tx *cm;
418 #endif
419 struct ipoib_ah *ah;
420 struct ib_sa_path_rec pathrec;
421 struct ifqueue queue;
422
423 int query_id;
424 struct ib_sa_query *query;
425 struct completion done;
426
427 int valid;
428 };
429
430 /* UD Only transmits encap len but we want the two sizes to be symmetrical. */
431 #define IPOIB_UD_MTU(ib_mtu) (ib_mtu - IPOIB_ENCAP_LEN)
432 #define IPOIB_CM_MTU(ib_mtu) (ib_mtu - 0x10)
433
434 #define IPOIB_IS_MULTICAST(addr) ((addr)[4] == 0xff)
435
436 extern struct workqueue_struct *ipoib_workqueue;
437
438 /* functions */
439 void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr);
440 void ipoib_send_comp_handler(struct ib_cq *cq, void *dev_ptr);
441
442 struct ipoib_ah *ipoib_create_ah(struct ipoib_dev_priv *,
443 struct ib_pd *pd, struct ib_ah_attr *attr);
444 void ipoib_free_ah(struct kref *kref);
ipoib_put_ah(struct ipoib_ah * ah)445 static inline void ipoib_put_ah(struct ipoib_ah *ah)
446 {
447 kref_put(&ah->ref, ipoib_free_ah);
448 }
449
450 int ipoib_open(struct ipoib_dev_priv *priv);
451 int ipoib_add_pkey_attr(struct ipoib_dev_priv *priv);
452 int ipoib_add_umcast_attr(struct ipoib_dev_priv *priv);
453
454 void ipoib_send(struct ipoib_dev_priv *priv, struct mbuf *mb,
455 struct ipoib_ah *address, u32 qpn);
456 void ipoib_reap_ah(struct work_struct *work);
457
458 void ipoib_mark_paths_invalid(struct ipoib_dev_priv *priv);
459 void ipoib_flush_paths(struct ipoib_dev_priv *priv);
460 struct ipoib_dev_priv *ipoib_intf_alloc(const char *format, struct ib_device *ca);
461
462 int ipoib_ib_dev_init(struct ipoib_dev_priv *priv, struct ib_device *ca,
463 int port);
464 void ipoib_ib_dev_flush_light(struct work_struct *work);
465 void ipoib_ib_dev_flush_normal(struct work_struct *work);
466 void ipoib_ib_dev_flush_heavy(struct work_struct *work);
467 void ipoib_pkey_event(struct work_struct *work);
468 void ipoib_ib_dev_cleanup(struct ipoib_dev_priv *priv);
469
470 int ipoib_ib_dev_open(struct ipoib_dev_priv *priv);
471 int ipoib_ib_dev_up(struct ipoib_dev_priv *priv);
472 int ipoib_ib_dev_down(struct ipoib_dev_priv *priv, int flush);
473 int ipoib_ib_dev_stop(struct ipoib_dev_priv *priv, int flush);
474
475 int ipoib_dev_init(struct ipoib_dev_priv *priv, struct ib_device *ca, int port);
476 void ipoib_dev_cleanup(struct ipoib_dev_priv *priv);
477
478 void ipoib_mcast_join_task(struct work_struct *work);
479 void ipoib_mcast_carrier_on_task(struct work_struct *work);
480 void ipoib_mcast_send(struct ipoib_dev_priv *priv, void *mgid, struct mbuf *mb);
481
482 void ipoib_mcast_restart_task(struct work_struct *work);
483 void ipoib_mcast_restart(struct ipoib_dev_priv *);
484 int ipoib_mcast_start_thread(struct ipoib_dev_priv *priv);
485 int ipoib_mcast_stop_thread(struct ipoib_dev_priv *priv, int flush);
486
487 void ipoib_mcast_dev_down(struct ipoib_dev_priv *priv);
488 void ipoib_mcast_dev_flush(struct ipoib_dev_priv *priv);
489
490 void ipoib_path_free(struct ipoib_dev_priv *priv, struct ipoib_path *path);
491 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
492 struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct ipoib_dev_priv *priv);
493 int ipoib_mcast_iter_next(struct ipoib_mcast_iter *iter);
494 void ipoib_mcast_iter_read(struct ipoib_mcast_iter *iter,
495 union ib_gid *gid,
496 unsigned long *created,
497 unsigned int *queuelen,
498 unsigned int *complete,
499 unsigned int *send_only);
500
501 struct ipoib_path_iter *ipoib_path_iter_init(struct ipoib_dev_priv *priv);
502 int ipoib_path_iter_next(struct ipoib_path_iter *iter);
503 void ipoib_path_iter_read(struct ipoib_path_iter *iter,
504 struct ipoib_path *path);
505 #endif
506
507 int ipoib_change_mtu(struct ipoib_dev_priv *priv, int new_mtu, bool propagate);
508
509 int ipoib_mcast_attach(struct ipoib_dev_priv *priv, u16 mlid,
510 union ib_gid *mgid, int set_qkey);
511
512 int ipoib_init_qp(struct ipoib_dev_priv *priv);
513 int ipoib_transport_dev_init(struct ipoib_dev_priv *priv, struct ib_device *ca);
514 void ipoib_transport_dev_cleanup(struct ipoib_dev_priv *priv);
515
516 void ipoib_event(struct ib_event_handler *handler,
517 struct ib_event *record);
518
519 void ipoib_pkey_poll(struct work_struct *work);
520 int ipoib_pkey_dev_delay_open(struct ipoib_dev_priv *priv);
521 void ipoib_drain_cq(struct ipoib_dev_priv *priv);
522
523 int ipoib_dma_map_tx(struct ib_device *ca, struct ipoib_tx_buf *tx_req, int max);
524 void ipoib_dma_unmap_tx(struct ib_device *ca, struct ipoib_tx_buf *tx_req);
525 int ipoib_poll_tx(struct ipoib_dev_priv *priv, bool do_start);
526
527 void ipoib_dma_unmap_rx(struct ipoib_dev_priv *priv, struct ipoib_rx_buf *rx_req);
528 void ipoib_dma_mb(struct ipoib_dev_priv *priv, struct mbuf *mb, unsigned int length);
529 struct mbuf *ipoib_alloc_map_mb(struct ipoib_dev_priv *priv, struct ipoib_rx_buf *rx_req, int align, int size, int max_frags);
530
531
532 void ipoib_set_ethtool_ops(if_t dev);
533 int ipoib_set_dev_features(struct ipoib_dev_priv *priv, struct ib_device *hca);
534
535 #ifdef CONFIG_INFINIBAND_IPOIB_CM
536
537 #define IPOIB_FLAGS_RC 0x80
538 #define IPOIB_FLAGS_UC 0x40
539
540 /* We don't support UC connections at the moment */
541 #define IPOIB_CM_SUPPORTED(ha) (ha[0] & (IPOIB_FLAGS_RC))
542
543 extern int ipoib_max_conn_qp;
544
ipoib_cm_admin_enabled(struct ipoib_dev_priv * priv)545 static inline int ipoib_cm_admin_enabled(struct ipoib_dev_priv *priv)
546 {
547 return IPOIB_CM_SUPPORTED(if_getlladdr(priv->dev));
548 }
549
ipoib_cm_enabled(struct ipoib_dev_priv * priv,uint8_t * hwaddr)550 static inline int ipoib_cm_enabled(struct ipoib_dev_priv *priv, uint8_t *hwaddr)
551 {
552 return IPOIB_CM_SUPPORTED(hwaddr);
553 }
554
ipoib_cm_up(struct ipoib_path * path)555 static inline int ipoib_cm_up(struct ipoib_path *path)
556
557 {
558 return test_bit(IPOIB_FLAG_OPER_UP, &path->cm->flags);
559 }
560
ipoib_cm_get(struct ipoib_path * path)561 static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_path *path)
562 {
563 return path->cm;
564 }
565
ipoib_cm_set(struct ipoib_path * path,struct ipoib_cm_tx * tx)566 static inline void ipoib_cm_set(struct ipoib_path *path, struct ipoib_cm_tx *tx)
567 {
568 path->cm = tx;
569 }
570
ipoib_cm_has_srq(struct ipoib_dev_priv * priv)571 static inline int ipoib_cm_has_srq(struct ipoib_dev_priv *priv)
572 {
573 return !!priv->cm.srq;
574 }
575
ipoib_cm_max_mtu(struct ipoib_dev_priv * priv)576 static inline unsigned int ipoib_cm_max_mtu(struct ipoib_dev_priv *priv)
577 {
578 return priv->cm.max_cm_mtu;
579 }
580
581 void ipoib_cm_send(struct ipoib_dev_priv *priv, struct mbuf *mb, struct ipoib_cm_tx *tx);
582 int ipoib_cm_dev_open(struct ipoib_dev_priv *priv);
583 void ipoib_cm_dev_stop(struct ipoib_dev_priv *priv);
584 int ipoib_cm_dev_init(struct ipoib_dev_priv *priv);
585 int ipoib_cm_add_mode_attr(struct ipoib_dev_priv *priv);
586 void ipoib_cm_dev_cleanup(struct ipoib_dev_priv *priv);
587 struct ipoib_cm_tx *ipoib_cm_create_tx(struct ipoib_dev_priv *priv,
588 struct ipoib_path *path);
589 void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx);
590 void ipoib_cm_mb_too_long(struct ipoib_dev_priv *priv, struct mbuf *mb,
591 unsigned int mtu);
592 void ipoib_cm_handle_rx_wc(struct ipoib_dev_priv *priv, struct ib_wc *wc);
593 void ipoib_cm_handle_tx_wc(struct ipoib_dev_priv *priv, struct ib_wc *wc);
594 #else
595
596 struct ipoib_cm_tx;
597
598 #define ipoib_max_conn_qp 0
599
ipoib_cm_admin_enabled(struct ipoib_dev_priv * priv)600 static inline int ipoib_cm_admin_enabled(struct ipoib_dev_priv *priv)
601 {
602 return 0;
603 }
ipoib_cm_enabled(struct ipoib_dev_priv * priv,uint8_t * hwaddr)604 static inline int ipoib_cm_enabled(struct ipoib_dev_priv *priv, uint8_t *hwaddr)
605
606 {
607 return 0;
608 }
609
ipoib_cm_up(struct ipoib_path * path)610 static inline int ipoib_cm_up(struct ipoib_path *path)
611
612 {
613 return 0;
614 }
615
ipoib_cm_get(struct ipoib_path * path)616 static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_path *path)
617 {
618 return NULL;
619 }
620
ipoib_cm_set(struct ipoib_path * path,struct ipoib_cm_tx * tx)621 static inline void ipoib_cm_set(struct ipoib_path *path, struct ipoib_cm_tx *tx)
622 {
623 }
624
ipoib_cm_has_srq(struct ipoib_dev_priv * priv)625 static inline int ipoib_cm_has_srq(struct ipoib_dev_priv *priv)
626 {
627 return 0;
628 }
629
ipoib_cm_max_mtu(struct ipoib_dev_priv * priv)630 static inline unsigned int ipoib_cm_max_mtu(struct ipoib_dev_priv *priv)
631 {
632 return 0;
633 }
634
635 static inline
ipoib_cm_send(struct ipoib_dev_priv * priv,struct mbuf * mb,struct ipoib_cm_tx * tx)636 void ipoib_cm_send(struct ipoib_dev_priv *priv, struct mbuf *mb, struct ipoib_cm_tx *tx)
637 {
638 return;
639 }
640
641 static inline
ipoib_cm_dev_open(struct ipoib_dev_priv * priv)642 int ipoib_cm_dev_open(struct ipoib_dev_priv *priv)
643 {
644 return 0;
645 }
646
647 static inline
ipoib_cm_dev_stop(struct ipoib_dev_priv * priv)648 void ipoib_cm_dev_stop(struct ipoib_dev_priv *priv)
649 {
650 return;
651 }
652
653 static inline
ipoib_cm_dev_init(struct ipoib_dev_priv * priv)654 int ipoib_cm_dev_init(struct ipoib_dev_priv *priv)
655 {
656 return -ENOSYS;
657 }
658
659 static inline
ipoib_cm_dev_cleanup(struct ipoib_dev_priv * priv)660 void ipoib_cm_dev_cleanup(struct ipoib_dev_priv *priv)
661 {
662 return;
663 }
664
665 static inline
ipoib_cm_create_tx(struct ipoib_dev_priv * priv,struct ipoib_path * path)666 struct ipoib_cm_tx *ipoib_cm_create_tx(struct ipoib_dev_priv *priv, struct ipoib_path *path)
667 {
668 return NULL;
669 }
670
671 static inline
ipoib_cm_destroy_tx(struct ipoib_cm_tx * tx)672 void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx)
673 {
674 return;
675 }
676
677 static inline
ipoib_cm_add_mode_attr(struct ipoib_dev_priv * priv)678 int ipoib_cm_add_mode_attr(struct ipoib_dev_priv *priv)
679 {
680 return 0;
681 }
682
ipoib_cm_mb_too_long(struct ipoib_dev_priv * priv,struct mbuf * mb,unsigned int mtu)683 static inline void ipoib_cm_mb_too_long(struct ipoib_dev_priv *priv, struct mbuf *mb,
684 unsigned int mtu)
685 {
686 m_freem(mb);
687 }
688
ipoib_cm_handle_rx_wc(struct ipoib_dev_priv * priv,struct ib_wc * wc)689 static inline void ipoib_cm_handle_rx_wc(struct ipoib_dev_priv *priv, struct ib_wc *wc)
690 {
691 }
692
ipoib_cm_handle_tx_wc(struct ipoib_dev_priv * priv,struct ib_wc * wc)693 static inline void ipoib_cm_handle_tx_wc(struct ipoib_dev_priv *priv, struct ib_wc *wc)
694 {
695 }
696 #endif
697
698 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
699 void ipoib_create_debug_files(struct ipoib_dev_priv *priv);
700 void ipoib_delete_debug_files(struct ipoib_dev_priv *priv);
701 int ipoib_register_debugfs(void);
702 void ipoib_unregister_debugfs(void);
703 #else
ipoib_create_debug_files(struct ipoib_dev_priv * priv)704 static inline void ipoib_create_debug_files(struct ipoib_dev_priv *priv) { }
ipoib_delete_debug_files(struct ipoib_dev_priv * priv)705 static inline void ipoib_delete_debug_files(struct ipoib_dev_priv *priv) { }
ipoib_register_debugfs(void)706 static inline int ipoib_register_debugfs(void) { return 0; }
ipoib_unregister_debugfs(void)707 static inline void ipoib_unregister_debugfs(void) { }
708 #endif
709
710 #define ipoib_printk(level, priv, format, arg...) \
711 printk(level "%s: " format, if_name(((struct ipoib_dev_priv *) priv)->dev), ## arg)
712 #define ipoib_warn(priv, format, arg...) \
713 ipoib_printk(KERN_WARNING, priv, format , ## arg)
714
715 extern int ipoib_sendq_size;
716 extern int ipoib_recvq_size;
717
718 extern struct ib_sa_client ipoib_sa_client;
719
720 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
721 extern int ipoib_debug_level;
722
723 #define ipoib_dbg(priv, format, arg...) \
724 do { \
725 if (ipoib_debug_level > 0) \
726 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
727 } while (0)
728 #define ipoib_dbg_mcast(priv, format, arg...) \
729 do { \
730 if (mcast_debug_level > 0) \
731 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
732 } while (0)
733 #else /* CONFIG_INFINIBAND_IPOIB_DEBUG */
734 #define ipoib_dbg(priv, format, arg...) \
735 do { (void) (priv); } while (0)
736 #define ipoib_dbg_mcast(priv, format, arg...) \
737 do { (void) (priv); } while (0)
738 #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */
739
740 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG_DATA
741 #define ipoib_dbg_data(priv, format, arg...) \
742 do { \
743 if (data_debug_level > 0) \
744 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
745 } while (0)
746 #else /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
747 #define ipoib_dbg_data(priv, format, arg...) \
748 do { (void) (priv); } while (0)
749 #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
750
751 #define IPOIB_QPN(ha) (be32_to_cpup((__be32 *) ha) & 0xffffff)
752
753 void ipoib_start_locked(if_t, struct ipoib_dev_priv *);
754
755 #endif /* _IPOIB_H */
756