1 /*
2 * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
3 * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
4 * Copyright (c) 2004 Voltaire, Inc. All rights reserved.
5 *
6 * This software is available to you under a choice of one of two
7 * licenses. You may choose to be licensed under the terms of the GNU
8 * General Public License (GPL) Version 2, available from the file
9 * COPYING in the main directory of this source tree, or the
10 * OpenIB.org BSD license below:
11 *
12 * Redistribution and use in source and binary forms, with or
13 * without modification, are permitted provided that the following
14 * conditions are met:
15 *
16 * - Redistributions of source code must retain the above
17 * copyright notice, this list of conditions and the following
18 * disclaimer.
19 *
20 * - Redistributions in binary form must reproduce the above
21 * copyright notice, this list of conditions and the following
22 * disclaimer in the documentation and/or other materials
23 * provided with the distribution.
24 *
25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
26 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
32 * SOFTWARE.
33 */
34
35 #ifndef _IPOIB_H
36 #define _IPOIB_H
37
38 #include "opt_inet.h"
39 #include "opt_inet6.h"
40 #include "opt_ofed.h"
41
42 #include <sys/param.h>
43 #include <sys/systm.h>
44 #include <sys/kernel.h>
45 #include <sys/lock.h>
46 #include <sys/malloc.h>
47 #include <sys/mbuf.h>
48 #include <sys/random.h>
49 #include <sys/rwlock.h>
50 #include <sys/socket.h>
51 #include <sys/sockio.h>
52 #include <sys/sysctl.h>
53
54 #include <net/if.h>
55 #include <net/if_var.h>
56 #include <net/if_arp.h>
57 #include <net/netisr.h>
58 #include <net/route.h>
59 #include <net/if_llc.h>
60 #include <net/if_dl.h>
61 #include <net/if_types.h>
62 #include <net/bpf.h>
63 #include <net/if_llatbl.h>
64 #include <net/vnet.h>
65
66 #if defined(INET) || defined(INET6)
67 #include <netinet/in.h>
68 #include <netinet/in_var.h>
69 #include <netinet/if_ether.h>
70 #include <netinet/ip_var.h>
71 #endif
72 #ifdef INET6
73 #include <netinet6/nd6.h>
74 #endif
75
76 #include <security/mac/mac_framework.h>
77
78 #include <linux/list.h>
79
80 #include <linux/workqueue.h>
81 #include <linux/kref.h>
82 #include <linux/mutex.h>
83 #include <linux/rbtree.h>
84
85 #include <asm/atomic.h>
86
87 #include <rdma/ib_verbs.h>
88 #include <rdma/ib_pack.h>
89 #include <rdma/ib_sa.h>
90
91 /* constants */
92
93 #define INFINIBAND_ALEN 20 /* Octets in IPoIB HW addr */
94
95 #ifdef IPOIB_CM
96 #define CONFIG_INFINIBAND_IPOIB_CM
97 #endif
98
99 #ifdef IPOIB_DEBUG
100 #define CONFIG_INFINIBAND_IPOIB_DEBUG
101 #define CONFIG_INFINIBAND_IPOIB_DEBUG_DATA
102 #endif
103
104 enum ipoib_flush_level {
105 IPOIB_FLUSH_LIGHT,
106 IPOIB_FLUSH_NORMAL,
107 IPOIB_FLUSH_HEAVY
108 };
109
110 enum {
111 IPOIB_ENCAP_LEN = 4,
112 IPOIB_HEADER_LEN = IPOIB_ENCAP_LEN + INFINIBAND_ALEN,
113 IPOIB_UD_MAX_MTU = 4 * 1024,
114 // IPOIB_UD_RX_SG = (IPOIB_UD_MAX_MTU / MJUMPAGESIZE),
115 IPOIB_UD_RX_SG = 2,
116 IPOIB_UD_TX_SG = (IPOIB_UD_MAX_MTU / MCLBYTES) + 2,
117 IPOIB_CM_MAX_MTU = (64 * 1024),
118 IPOIB_CM_TX_SG = (IPOIB_CM_MAX_MTU / MCLBYTES) + 2,
119 IPOIB_CM_RX_SG = (IPOIB_CM_MAX_MTU / MJUMPAGESIZE),
120 IPOIB_RX_RING_SIZE = 256,
121 IPOIB_TX_RING_SIZE = 128,
122 IPOIB_MAX_RX_SG = MAX(IPOIB_CM_RX_SG, IPOIB_UD_RX_SG),
123 IPOIB_MAX_TX_SG = MAX(IPOIB_CM_TX_SG, IPOIB_UD_TX_SG),
124 IPOIB_MAX_QUEUE_SIZE = 8192,
125 IPOIB_MIN_QUEUE_SIZE = 2,
126 IPOIB_CM_MAX_CONN_QP = 4096,
127
128 IPOIB_NUM_WC = 4,
129
130 IPOIB_MAX_PATH_REC_QUEUE = 3,
131 IPOIB_MAX_MCAST_QUEUE = 3,
132
133 IPOIB_FLAG_OPER_UP = 0,
134 IPOIB_FLAG_INITIALIZED = 1,
135 IPOIB_FLAG_ADMIN_UP = 2,
136 IPOIB_PKEY_ASSIGNED = 3,
137 IPOIB_PKEY_STOP = 4,
138 IPOIB_FLAG_SUBINTERFACE = 5,
139 IPOIB_MCAST_RUN = 6,
140 IPOIB_STOP_REAPER = 7,
141 IPOIB_FLAG_UMCAST = 10,
142 IPOIB_FLAG_CSUM = 11,
143
144 IPOIB_MAX_BACKOFF_SECONDS = 16,
145
146 IPOIB_MCAST_FLAG_FOUND = 0, /* used in set_multicast_list */
147 IPOIB_MCAST_FLAG_SENDONLY = 1,
148 IPOIB_MCAST_FLAG_BUSY = 2, /* joining or already joined */
149 IPOIB_MCAST_FLAG_ATTACHED = 3,
150
151 IPOIB_MAX_LRO_DESCRIPTORS = 8,
152 IPOIB_LRO_MAX_AGGR = 64,
153
154 MAX_SEND_CQE = 16,
155 IPOIB_CM_COPYBREAK = 256,
156 };
157
158 #define IPOIB_OP_RECV (1ul << 31)
159 #ifdef CONFIG_INFINIBAND_IPOIB_CM
160 #define IPOIB_OP_CM (1ul << 30)
161 #else
162 #define IPOIB_OP_CM (0)
163 #endif
164
165 /* structs */
166
167 struct ipoib_header {
168 u8 hwaddr[INFINIBAND_ALEN];
169 __be16 proto;
170 u16 reserved;
171 };
172
173 struct ipoib_pseudoheader {
174 u8 hwaddr[INFINIBAND_ALEN];
175 };
176
177 /* Used for all multicast joins (broadcast, IPv4 mcast and IPv6 mcast) */
178 struct ipoib_mcast {
179 struct ib_sa_mcmember_rec mcmember;
180 struct ib_sa_multicast *mc;
181 struct ipoib_ah *ah;
182
183 struct rb_node rb_node;
184 struct list_head list;
185
186 unsigned long created;
187 unsigned long backoff;
188
189 unsigned long flags;
190 unsigned char logcount;
191
192 struct ifqueue pkt_queue;
193
194 struct ipoib_dev_priv *priv;
195 };
196
197 struct ipoib_cm_rx_buf {
198 struct mbuf *mb;
199 u64 mapping[IPOIB_CM_RX_SG];
200 };
201
202 struct ipoib_cm_tx_buf {
203 struct mbuf *mb;
204 u64 mapping[IPOIB_CM_TX_SG];
205 };
206
207 struct ipoib_rx_buf {
208 struct mbuf *mb;
209 u64 mapping[IPOIB_UD_RX_SG];
210 };
211
212 struct ipoib_tx_buf {
213 struct mbuf *mb;
214 u64 mapping[IPOIB_UD_TX_SG];
215 };
216
217 struct ib_cm_id;
218
219 struct ipoib_cm_data {
220 __be32 qpn; /* High byte MUST be ignored on receive */
221 __be32 mtu;
222 };
223
224 /*
225 * Quoting 10.3.1 Queue Pair and EE Context States:
226 *
227 * Note, for QPs that are associated with an SRQ, the Consumer should take the
228 * QP through the Error State before invoking a Destroy QP or a Modify QP to the
229 * Reset State. The Consumer may invoke the Destroy QP without first performing
230 * a Modify QP to the Error State and waiting for the Affiliated Asynchronous
231 * Last WQE Reached Event. However, if the Consumer does not wait for the
232 * Affiliated Asynchronous Last WQE Reached Event, then WQE and Data Segment
233 * leakage may occur. Therefore, it is good programming practice to tear down a
234 * QP that is associated with an SRQ by using the following process:
235 *
236 * - Put the QP in the Error State
237 * - Wait for the Affiliated Asynchronous Last WQE Reached Event;
238 * - either:
239 * drain the CQ by invoking the Poll CQ verb and either wait for CQ
240 * to be empty or the number of Poll CQ operations has exceeded
241 * CQ capacity size;
242 * - or
243 * post another WR that completes on the same CQ and wait for this
244 * WR to return as a WC;
245 * - and then invoke a Destroy QP or Reset QP.
246 *
247 * We use the second option and wait for a completion on the
248 * same CQ before destroying QPs attached to our SRQ.
249 */
250
251 enum ipoib_cm_state {
252 IPOIB_CM_RX_LIVE,
253 IPOIB_CM_RX_ERROR, /* Ignored by stale task */
254 IPOIB_CM_RX_FLUSH /* Last WQE Reached event observed */
255 };
256
257 struct ipoib_cm_rx {
258 struct ib_cm_id *id;
259 struct ib_qp *qp;
260 struct ipoib_cm_rx_buf *rx_ring;
261 struct list_head list;
262 struct ipoib_dev_priv *priv;
263 unsigned long jiffies;
264 enum ipoib_cm_state state;
265 int recv_count;
266 };
267
268 struct ipoib_cm_tx {
269 struct ib_cm_id *id;
270 struct ib_qp *qp;
271 struct list_head list;
272 struct ipoib_dev_priv *priv;
273 struct ipoib_path *path;
274 struct ipoib_cm_tx_buf *tx_ring;
275 unsigned tx_head;
276 unsigned tx_tail;
277 unsigned long flags;
278 u32 mtu; /* remote specified mtu, with grh. */
279 };
280
281 struct ipoib_cm_dev_priv {
282 struct ib_srq *srq;
283 struct ipoib_cm_rx_buf *srq_ring;
284 struct ib_cm_id *id;
285 struct list_head passive_ids; /* state: LIVE */
286 struct list_head rx_error_list; /* state: ERROR */
287 struct list_head rx_flush_list; /* state: FLUSH, drain not started */
288 struct list_head rx_drain_list; /* state: FLUSH, drain started */
289 struct list_head rx_reap_list; /* state: FLUSH, drain done */
290 struct work_struct start_task;
291 struct work_struct reap_task;
292 struct work_struct mb_task;
293 struct work_struct rx_reap_task;
294 struct delayed_work stale_task;
295 struct ifqueue mb_queue;
296 struct list_head start_list;
297 struct list_head reap_list;
298 struct ib_sge rx_sge[IPOIB_CM_RX_SG];
299 struct ib_recv_wr rx_wr;
300 int nonsrq_conn_qp;
301 int max_cm_mtu; /* Actual buf size. */
302 int num_frags;
303 };
304
305 struct ipoib_ethtool_st {
306 u16 coalesce_usecs;
307 u16 max_coalesced_frames;
308 };
309
310 /*
311 * Device private locking: network stack tx_lock protects members used
312 * in TX fast path, lock protects everything else. lock nests inside
313 * of tx_lock (ie tx_lock must be acquired first if needed).
314 */
315 struct ipoib_dev_priv {
316 spinlock_t lock;
317 spinlock_t drain_lock;
318
319 struct ifnet *dev;
320
321 u8 broadcastaddr[INFINIBAND_ALEN];
322
323 unsigned long flags;
324
325 struct mutex vlan_mutex;
326
327 struct rb_root path_tree;
328 struct list_head path_list;
329
330 struct ipoib_mcast *broadcast;
331 struct list_head multicast_list;
332 struct rb_root multicast_tree;
333
334 struct delayed_work pkey_poll_task;
335 struct delayed_work mcast_task;
336 struct work_struct carrier_on_task;
337 struct work_struct flush_light;
338 struct work_struct flush_normal;
339 struct work_struct flush_heavy;
340 struct work_struct restart_task;
341 struct delayed_work ah_reap_task;
342
343 struct ib_device *ca;
344 u8 port;
345 u16 pkey;
346 u16 pkey_index;
347 struct ib_pd *pd;
348 struct ib_mr *mr;
349 struct ib_cq *recv_cq;
350 struct ib_cq *send_cq;
351 struct ib_qp *qp;
352 u32 qkey;
353
354 union ib_gid local_gid;
355 u16 local_lid;
356
357 unsigned int admin_mtu; /* User selected MTU, no GRH. */
358 unsigned int mcast_mtu; /* Minus GRH bytes, from mcast group. */
359 unsigned int max_ib_mtu; /* Without header, actual buf size. */
360
361 struct ipoib_rx_buf *rx_ring;
362
363 struct ipoib_tx_buf *tx_ring;
364 unsigned tx_head;
365 unsigned tx_tail;
366 struct ib_sge tx_sge[IPOIB_MAX_TX_SG];
367 struct ib_send_wr tx_wr;
368 unsigned tx_outstanding;
369 struct ib_wc send_wc[MAX_SEND_CQE];
370
371 struct ib_recv_wr rx_wr;
372 struct ib_sge rx_sge[IPOIB_MAX_RX_SG];
373
374 struct ib_wc ibwc[IPOIB_NUM_WC];
375
376 struct list_head dead_ahs;
377
378 struct ib_event_handler event_handler;
379
380 struct ifnet *parent;
381 struct list_head child_intfs;
382 struct list_head list;
383
384 #ifdef CONFIG_INFINIBAND_IPOIB_CM
385 struct ipoib_cm_dev_priv cm;
386 #endif
387
388 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
389 struct list_head fs_list;
390 struct dentry *mcg_dentry;
391 struct dentry *path_dentry;
392 #endif
393 int hca_caps;
394 struct ipoib_ethtool_st ethtool;
395 struct timer_list poll_timer;
396 };
397
398 struct ipoib_ah {
399 struct ipoib_dev_priv *priv;
400 struct ib_ah *ah;
401 struct list_head list;
402 struct kref ref;
403 unsigned last_send;
404 };
405
406 struct ipoib_path {
407 struct ipoib_dev_priv *priv;
408 struct rb_node rb_node;
409 struct list_head list;
410 #ifdef CONFIG_INFINIBAND_IPOIB_CM
411 uint8_t hwaddr[INFINIBAND_ALEN];
412 struct ipoib_cm_tx *cm;
413 #endif
414 struct ipoib_ah *ah;
415 struct ib_sa_path_rec pathrec;
416 struct ifqueue queue;
417
418 int query_id;
419 struct ib_sa_query *query;
420 struct completion done;
421
422 int valid;
423 };
424
425 /* UD Only transmits encap len but we want the two sizes to be symmetrical. */
426 #define IPOIB_UD_MTU(ib_mtu) (ib_mtu - IPOIB_ENCAP_LEN)
427 #define IPOIB_CM_MTU(ib_mtu) (ib_mtu - 0x10)
428
429 #define IPOIB_IS_MULTICAST(addr) ((addr)[4] == 0xff)
430
431 extern struct workqueue_struct *ipoib_workqueue;
432
433 #define IPOIB_MTAP_PROTO(_ifp, _m, _proto) \
434 do { \
435 if (bpf_peers_present((_ifp)->if_bpf)) { \
436 M_ASSERTVALID(_m); \
437 ipoib_mtap_proto((_ifp), (_m), (_proto)); \
438 } \
439 } while (0)
440
441 /* functions */
442 void ipoib_mtap_proto(struct ifnet *ifp, struct mbuf *mb, uint16_t proto);
443 void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr);
444 void ipoib_send_comp_handler(struct ib_cq *cq, void *dev_ptr);
445
446 struct ipoib_ah *ipoib_create_ah(struct ipoib_dev_priv *,
447 struct ib_pd *pd, struct ib_ah_attr *attr);
448 void ipoib_free_ah(struct kref *kref);
ipoib_put_ah(struct ipoib_ah * ah)449 static inline void ipoib_put_ah(struct ipoib_ah *ah)
450 {
451 kref_put(&ah->ref, ipoib_free_ah);
452 }
453
454 int ipoib_open(struct ipoib_dev_priv *priv);
455 int ipoib_add_pkey_attr(struct ipoib_dev_priv *priv);
456 int ipoib_add_umcast_attr(struct ipoib_dev_priv *priv);
457
458 void ipoib_demux(struct ifnet *ifp, struct mbuf *m, u_short proto);
459
460 void ipoib_send(struct ipoib_dev_priv *priv, struct mbuf *mb,
461 struct ipoib_ah *address, u32 qpn);
462 void ipoib_reap_ah(struct work_struct *work);
463
464 void ipoib_mark_paths_invalid(struct ipoib_dev_priv *priv);
465 void ipoib_flush_paths(struct ipoib_dev_priv *priv);
466 struct ipoib_dev_priv *ipoib_intf_alloc(const char *format);
467
468 int ipoib_ib_dev_init(struct ipoib_dev_priv *priv, struct ib_device *ca,
469 int port);
470 void ipoib_ib_dev_flush_light(struct work_struct *work);
471 void ipoib_ib_dev_flush_normal(struct work_struct *work);
472 void ipoib_ib_dev_flush_heavy(struct work_struct *work);
473 void ipoib_pkey_event(struct work_struct *work);
474 void ipoib_ib_dev_cleanup(struct ipoib_dev_priv *priv);
475
476 int ipoib_ib_dev_open(struct ipoib_dev_priv *priv);
477 int ipoib_ib_dev_up(struct ipoib_dev_priv *priv);
478 int ipoib_ib_dev_down(struct ipoib_dev_priv *priv, int flush);
479 int ipoib_ib_dev_stop(struct ipoib_dev_priv *priv, int flush);
480
481 int ipoib_dev_init(struct ipoib_dev_priv *priv, struct ib_device *ca, int port);
482 void ipoib_dev_cleanup(struct ipoib_dev_priv *priv);
483
484 void ipoib_mcast_join_task(struct work_struct *work);
485 void ipoib_mcast_carrier_on_task(struct work_struct *work);
486 void ipoib_mcast_send(struct ipoib_dev_priv *priv, void *mgid, struct mbuf *mb);
487
488 void ipoib_mcast_restart_task(struct work_struct *work);
489 void ipoib_mcast_restart(struct ipoib_dev_priv *);
490 int ipoib_mcast_start_thread(struct ipoib_dev_priv *priv);
491 int ipoib_mcast_stop_thread(struct ipoib_dev_priv *priv, int flush);
492
493 void ipoib_mcast_dev_down(struct ipoib_dev_priv *priv);
494 void ipoib_mcast_dev_flush(struct ipoib_dev_priv *priv);
495
496 void ipoib_path_free(struct ipoib_dev_priv *priv, struct ipoib_path *path);
497 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
498 struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct ipoib_dev_priv *priv);
499 int ipoib_mcast_iter_next(struct ipoib_mcast_iter *iter);
500 void ipoib_mcast_iter_read(struct ipoib_mcast_iter *iter,
501 union ib_gid *gid,
502 unsigned long *created,
503 unsigned int *queuelen,
504 unsigned int *complete,
505 unsigned int *send_only);
506
507 struct ipoib_path_iter *ipoib_path_iter_init(struct ipoib_dev_priv *priv);
508 int ipoib_path_iter_next(struct ipoib_path_iter *iter);
509 void ipoib_path_iter_read(struct ipoib_path_iter *iter,
510 struct ipoib_path *path);
511 #endif
512
513 int ipoib_change_mtu(struct ipoib_dev_priv *priv, int new_mtu);
514
515 int ipoib_mcast_attach(struct ipoib_dev_priv *priv, u16 mlid,
516 union ib_gid *mgid, int set_qkey);
517
518 int ipoib_init_qp(struct ipoib_dev_priv *priv);
519 int ipoib_transport_dev_init(struct ipoib_dev_priv *priv, struct ib_device *ca);
520 void ipoib_transport_dev_cleanup(struct ipoib_dev_priv *priv);
521
522 void ipoib_event(struct ib_event_handler *handler,
523 struct ib_event *record);
524
525 void ipoib_pkey_poll(struct work_struct *work);
526 int ipoib_pkey_dev_delay_open(struct ipoib_dev_priv *priv);
527 void ipoib_drain_cq(struct ipoib_dev_priv *priv);
528
529 int ipoib_dma_map_tx(struct ib_device *ca, struct ipoib_tx_buf *tx_req, int max);
530 void ipoib_dma_unmap_tx(struct ib_device *ca, struct ipoib_tx_buf *tx_req);
531 int ipoib_poll_tx(struct ipoib_dev_priv *priv);
532
533 void ipoib_dma_unmap_rx(struct ipoib_dev_priv *priv, struct ipoib_rx_buf *rx_req);
534 void ipoib_dma_mb(struct ipoib_dev_priv *priv, struct mbuf *mb, unsigned int length);
535 struct mbuf *ipoib_alloc_map_mb(struct ipoib_dev_priv *priv, struct ipoib_rx_buf *rx_req, int size);
536
537
538 void ipoib_set_ethtool_ops(struct ifnet *dev);
539 int ipoib_set_dev_features(struct ipoib_dev_priv *priv, struct ib_device *hca);
540
541 #ifdef CONFIG_INFINIBAND_IPOIB_CM
542
543 #define IPOIB_FLAGS_RC 0x80
544 #define IPOIB_FLAGS_UC 0x40
545
546 /* We don't support UC connections at the moment */
547 #define IPOIB_CM_SUPPORTED(ha) (ha[0] & (IPOIB_FLAGS_RC))
548
549 extern int ipoib_max_conn_qp;
550
ipoib_cm_admin_enabled(struct ipoib_dev_priv * priv)551 static inline int ipoib_cm_admin_enabled(struct ipoib_dev_priv *priv)
552 {
553 return IPOIB_CM_SUPPORTED(IF_LLADDR(priv->dev));
554 }
555
ipoib_cm_enabled(struct ipoib_dev_priv * priv,uint8_t * hwaddr)556 static inline int ipoib_cm_enabled(struct ipoib_dev_priv *priv, uint8_t *hwaddr)
557 {
558 return IPOIB_CM_SUPPORTED(hwaddr);
559 }
560
ipoib_cm_up(struct ipoib_path * path)561 static inline int ipoib_cm_up(struct ipoib_path *path)
562
563 {
564 return test_bit(IPOIB_FLAG_OPER_UP, &path->cm->flags);
565 }
566
ipoib_cm_get(struct ipoib_path * path)567 static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_path *path)
568 {
569 return path->cm;
570 }
571
ipoib_cm_set(struct ipoib_path * path,struct ipoib_cm_tx * tx)572 static inline void ipoib_cm_set(struct ipoib_path *path, struct ipoib_cm_tx *tx)
573 {
574 path->cm = tx;
575 }
576
ipoib_cm_has_srq(struct ipoib_dev_priv * priv)577 static inline int ipoib_cm_has_srq(struct ipoib_dev_priv *priv)
578 {
579 return !!priv->cm.srq;
580 }
581
ipoib_cm_max_mtu(struct ipoib_dev_priv * priv)582 static inline unsigned int ipoib_cm_max_mtu(struct ipoib_dev_priv *priv)
583 {
584 return priv->cm.max_cm_mtu;
585 }
586
587 void ipoib_cm_send(struct ipoib_dev_priv *priv, struct mbuf *mb, struct ipoib_cm_tx *tx);
588 int ipoib_cm_dev_open(struct ipoib_dev_priv *priv);
589 void ipoib_cm_dev_stop(struct ipoib_dev_priv *priv);
590 int ipoib_cm_dev_init(struct ipoib_dev_priv *priv);
591 int ipoib_cm_add_mode_attr(struct ipoib_dev_priv *priv);
592 void ipoib_cm_dev_cleanup(struct ipoib_dev_priv *priv);
593 struct ipoib_cm_tx *ipoib_cm_create_tx(struct ipoib_dev_priv *priv,
594 struct ipoib_path *path);
595 void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx);
596 void ipoib_cm_mb_too_long(struct ipoib_dev_priv *priv, struct mbuf *mb,
597 unsigned int mtu);
598 void ipoib_cm_handle_rx_wc(struct ipoib_dev_priv *priv, struct ib_wc *wc);
599 void ipoib_cm_handle_tx_wc(struct ipoib_dev_priv *priv, struct ib_wc *wc);
600 #else
601
602 struct ipoib_cm_tx;
603
604 #define ipoib_max_conn_qp 0
605
ipoib_cm_admin_enabled(struct ipoib_dev_priv * priv)606 static inline int ipoib_cm_admin_enabled(struct ipoib_dev_priv *priv)
607 {
608 return 0;
609 }
ipoib_cm_enabled(struct ipoib_dev_priv * priv,uint8_t * hwaddr)610 static inline int ipoib_cm_enabled(struct ipoib_dev_priv *priv, uint8_t *hwaddr)
611
612 {
613 return 0;
614 }
615
ipoib_cm_up(struct ipoib_path * path)616 static inline int ipoib_cm_up(struct ipoib_path *path)
617
618 {
619 return 0;
620 }
621
ipoib_cm_get(struct ipoib_path * path)622 static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_path *path)
623 {
624 return NULL;
625 }
626
ipoib_cm_set(struct ipoib_path * path,struct ipoib_cm_tx * tx)627 static inline void ipoib_cm_set(struct ipoib_path *path, struct ipoib_cm_tx *tx)
628 {
629 }
630
ipoib_cm_has_srq(struct ipoib_dev_priv * priv)631 static inline int ipoib_cm_has_srq(struct ipoib_dev_priv *priv)
632 {
633 return 0;
634 }
635
ipoib_cm_max_mtu(struct ipoib_dev_priv * priv)636 static inline unsigned int ipoib_cm_max_mtu(struct ipoib_dev_priv *priv)
637 {
638 return 0;
639 }
640
641 static inline
ipoib_cm_send(struct ipoib_dev_priv * priv,struct mbuf * mb,struct ipoib_cm_tx * tx)642 void ipoib_cm_send(struct ipoib_dev_priv *priv, struct mbuf *mb, struct ipoib_cm_tx *tx)
643 {
644 return;
645 }
646
647 static inline
ipoib_cm_dev_open(struct ipoib_dev_priv * priv)648 int ipoib_cm_dev_open(struct ipoib_dev_priv *priv)
649 {
650 return 0;
651 }
652
653 static inline
ipoib_cm_dev_stop(struct ipoib_dev_priv * priv)654 void ipoib_cm_dev_stop(struct ipoib_dev_priv *priv)
655 {
656 return;
657 }
658
659 static inline
ipoib_cm_dev_init(struct ipoib_dev_priv * priv)660 int ipoib_cm_dev_init(struct ipoib_dev_priv *priv)
661 {
662 return -ENOSYS;
663 }
664
665 static inline
ipoib_cm_dev_cleanup(struct ipoib_dev_priv * priv)666 void ipoib_cm_dev_cleanup(struct ipoib_dev_priv *priv)
667 {
668 return;
669 }
670
671 static inline
ipoib_cm_create_tx(struct ipoib_dev_priv * priv,struct ipoib_path * path)672 struct ipoib_cm_tx *ipoib_cm_create_tx(struct ipoib_dev_priv *priv, struct ipoib_path *path)
673 {
674 return NULL;
675 }
676
677 static inline
ipoib_cm_destroy_tx(struct ipoib_cm_tx * tx)678 void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx)
679 {
680 return;
681 }
682
683 static inline
ipoib_cm_add_mode_attr(struct ipoib_dev_priv * priv)684 int ipoib_cm_add_mode_attr(struct ipoib_dev_priv *priv)
685 {
686 return 0;
687 }
688
ipoib_cm_mb_too_long(struct ipoib_dev_priv * priv,struct mbuf * mb,unsigned int mtu)689 static inline void ipoib_cm_mb_too_long(struct ipoib_dev_priv *priv, struct mbuf *mb,
690 unsigned int mtu)
691 {
692 m_freem(mb);
693 }
694
ipoib_cm_handle_rx_wc(struct ipoib_dev_priv * priv,struct ib_wc * wc)695 static inline void ipoib_cm_handle_rx_wc(struct ipoib_dev_priv *priv, struct ib_wc *wc)
696 {
697 }
698
ipoib_cm_handle_tx_wc(struct ipoib_dev_priv * priv,struct ib_wc * wc)699 static inline void ipoib_cm_handle_tx_wc(struct ipoib_dev_priv *priv, struct ib_wc *wc)
700 {
701 }
702 #endif
703
704 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
705 void ipoib_create_debug_files(struct ipoib_dev_priv *priv);
706 void ipoib_delete_debug_files(struct ipoib_dev_priv *priv);
707 int ipoib_register_debugfs(void);
708 void ipoib_unregister_debugfs(void);
709 #else
ipoib_create_debug_files(struct ipoib_dev_priv * priv)710 static inline void ipoib_create_debug_files(struct ipoib_dev_priv *priv) { }
ipoib_delete_debug_files(struct ipoib_dev_priv * priv)711 static inline void ipoib_delete_debug_files(struct ipoib_dev_priv *priv) { }
ipoib_register_debugfs(void)712 static inline int ipoib_register_debugfs(void) { return 0; }
ipoib_unregister_debugfs(void)713 static inline void ipoib_unregister_debugfs(void) { }
714 #endif
715
716 #define ipoib_printk(level, priv, format, arg...) \
717 printk(level "%s: " format, if_name(((struct ipoib_dev_priv *) priv)->dev), ## arg)
718 #define ipoib_warn(priv, format, arg...) \
719 ipoib_printk(KERN_WARNING, priv, format , ## arg)
720
721 extern int ipoib_sendq_size;
722 extern int ipoib_recvq_size;
723
724 extern struct ib_sa_client ipoib_sa_client;
725
726 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
727 extern int ipoib_debug_level;
728
729 #define ipoib_dbg(priv, format, arg...) \
730 do { \
731 if (ipoib_debug_level > 0) \
732 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
733 } while (0)
734 #define ipoib_dbg_mcast(priv, format, arg...) \
735 do { \
736 if (mcast_debug_level > 0) \
737 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
738 } while (0)
739 #else /* CONFIG_INFINIBAND_IPOIB_DEBUG */
740 #define ipoib_dbg(priv, format, arg...) \
741 do { (void) (priv); } while (0)
742 #define ipoib_dbg_mcast(priv, format, arg...) \
743 do { (void) (priv); } while (0)
744 #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */
745
746 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG_DATA
747 #define ipoib_dbg_data(priv, format, arg...) \
748 do { \
749 if (data_debug_level > 0) \
750 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
751 } while (0)
752 #else /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
753 #define ipoib_dbg_data(priv, format, arg...) \
754 do { (void) (priv); } while (0)
755 #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
756
757 #define IPOIB_QPN(ha) (be32_to_cpup((__be32 *) ha) & 0xffffff)
758
759 #endif /* _IPOIB_H */
760