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