?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
powerpc/mm/4k: don't allocate larger pmd page table for 4k
[linux/fpc-iii.git] / drivers / infiniband / ulp / ipoib / ipoib.h
blobda12717a3eb794f100438988c564eb56004ef0d7
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 <linux/list.h>
39 #include <linux/skbuff.h>
40 #include <linux/netdevice.h>
41 #include <linux/workqueue.h>
42 #include <linux/kref.h>
43 #include <linux/if_infiniband.h>
44 #include <linux/mutex.h>
45
46 #include <net/neighbour.h>
47 #include <net/sch_generic.h>
48
49 #include <linux/atomic.h>
50
51 #include <rdma/ib_verbs.h>
52 #include <rdma/ib_pack.h>
53 #include <rdma/ib_sa.h>
54 #include <linux/sched.h>
55
56 /* constants */
57
58 enum ipoib_flush_level {
59 IPOIB_FLUSH_LIGHT,
60 IPOIB_FLUSH_NORMAL,
61 IPOIB_FLUSH_HEAVY
62 };
63
64 enum {
65 IPOIB_ENCAP_LEN = 4,
66 IPOIB_PSEUDO_LEN = 20,
67 IPOIB_HARD_LEN = IPOIB_ENCAP_LEN + IPOIB_PSEUDO_LEN,
68
69 IPOIB_UD_HEAD_SIZE = IB_GRH_BYTES + IPOIB_ENCAP_LEN,
70 IPOIB_UD_RX_SG = 2, /* max buffer needed for 4K mtu */
71
72 IPOIB_CM_MTU = 0x10000 - 0x10, /* padding to align header to 16 */
73 IPOIB_CM_BUF_SIZE = IPOIB_CM_MTU + IPOIB_ENCAP_LEN,
74 IPOIB_CM_HEAD_SIZE = IPOIB_CM_BUF_SIZE % PAGE_SIZE,
75 IPOIB_CM_RX_SG = ALIGN(IPOIB_CM_BUF_SIZE, PAGE_SIZE) / PAGE_SIZE,
76 IPOIB_RX_RING_SIZE = 256,
77 IPOIB_TX_RING_SIZE = 128,
78 IPOIB_MAX_QUEUE_SIZE = 8192,
79 IPOIB_MIN_QUEUE_SIZE = 2,
80 IPOIB_CM_MAX_CONN_QP = 4096,
81
82 IPOIB_NUM_WC = 4,
83
84 IPOIB_MAX_PATH_REC_QUEUE = 3,
85 IPOIB_MAX_MCAST_QUEUE = 64,
86
87 IPOIB_FLAG_OPER_UP = 0,
88 IPOIB_FLAG_INITIALIZED = 1,
89 IPOIB_FLAG_ADMIN_UP = 2,
90 IPOIB_PKEY_ASSIGNED = 3,
91 IPOIB_FLAG_SUBINTERFACE = 5,
92 IPOIB_STOP_REAPER = 7,
93 IPOIB_FLAG_ADMIN_CM = 9,
94 IPOIB_FLAG_UMCAST = 10,
95 IPOIB_STOP_NEIGH_GC = 11,
96 IPOIB_NEIGH_TBL_FLUSH = 12,
97 IPOIB_FLAG_DEV_ADDR_SET = 13,
98 IPOIB_FLAG_DEV_ADDR_CTRL = 14,
99 IPOIB_FLAG_GOING_DOWN = 15,
100
101 IPOIB_MAX_BACKOFF_SECONDS = 16,
102
103 IPOIB_MCAST_FLAG_FOUND = 0, /* used in set_multicast_list */
104 IPOIB_MCAST_FLAG_SENDONLY = 1,
105 /*
106 * For IPOIB_MCAST_FLAG_BUSY
107 * When set, in flight join and mcast->mc is unreliable
108 * When clear and mcast->mc IS_ERR_OR_NULL, need to restart or
109 * haven't started yet
110 * When clear and mcast->mc is valid pointer, join was successful
111 */
112 IPOIB_MCAST_FLAG_BUSY = 2,
113 IPOIB_MCAST_FLAG_ATTACHED = 3,
114
115 MAX_SEND_CQE = 16,
116 IPOIB_CM_COPYBREAK = 256,
117
118 IPOIB_NON_CHILD = 0,
119 IPOIB_LEGACY_CHILD = 1,
120 IPOIB_RTNL_CHILD = 2,
121 };
122
123 #define IPOIB_OP_RECV (1ul << 31)
124 #ifdef CONFIG_INFINIBAND_IPOIB_CM
125 #define IPOIB_OP_CM (1ul << 30)
126 #else
127 #define IPOIB_OP_CM (0)
128 #endif
129
130 #define IPOIB_QPN_MASK ((__force u32) cpu_to_be32(0xFFFFFF))
131
132 /* structs */
133
134 struct ipoib_header {
135 __be16 proto;
136 u16 reserved;
137 };
138
139 struct ipoib_pseudo_header {
140 u8 hwaddr[INFINIBAND_ALEN];
141 };
142
143 static inline void skb_add_pseudo_hdr(struct sk_buff *skb)
144 {
145 char *data = skb_push(skb, IPOIB_PSEUDO_LEN);
146
147 /*
148 * only the ipoib header is present now, make room for a dummy
149 * pseudo header and set skb field accordingly
150 */
151 memset(data, 0, IPOIB_PSEUDO_LEN);
152 skb_reset_mac_header(skb);
153 skb_pull(skb, IPOIB_HARD_LEN);
154 }
155
156 /* Used for all multicast joins (broadcast, IPv4 mcast and IPv6 mcast) */
157 struct ipoib_mcast {
158 struct ib_sa_mcmember_rec mcmember;
159 struct ib_sa_multicast *mc;
160 struct ipoib_ah *ah;
161
162 struct rb_node rb_node;
163 struct list_head list;
164
165 unsigned long created;
166 unsigned long backoff;
167 unsigned long delay_until;
168
169 unsigned long flags;
170 unsigned char logcount;
171
172 struct list_head neigh_list;
173
174 struct sk_buff_head pkt_queue;
175
176 struct net_device *dev;
177 struct completion done;
178 };
179
180 struct ipoib_rx_buf {
181 struct sk_buff *skb;
182 u64 mapping[IPOIB_UD_RX_SG];
183 };
184
185 struct ipoib_tx_buf {
186 struct sk_buff *skb;
187 u64 mapping[MAX_SKB_FRAGS + 1];
188 };
189
190 struct ipoib_cm_tx_buf {
191 struct sk_buff *skb;
192 u64 mapping;
193 };
194
195 struct ib_cm_id;
196
197 struct ipoib_cm_data {
198 __be32 qpn; /* High byte MUST be ignored on receive */
199 __be32 mtu;
200 };
201
202 /*
203 * Quoting 10.3.1 Queue Pair and EE Context States:
204 *
205 * Note, for QPs that are associated with an SRQ, the Consumer should take the
206 * QP through the Error State before invoking a Destroy QP or a Modify QP to the
207 * Reset State. The Consumer may invoke the Destroy QP without first performing
208 * a Modify QP to the Error State and waiting for the Affiliated Asynchronous
209 * Last WQE Reached Event. However, if the Consumer does not wait for the
210 * Affiliated Asynchronous Last WQE Reached Event, then WQE and Data Segment
211 * leakage may occur. Therefore, it is good programming practice to tear down a
212 * QP that is associated with an SRQ by using the following process:
213 *
214 * - Put the QP in the Error State
215 * - Wait for the Affiliated Asynchronous Last WQE Reached Event;
216 * - either:
217 * drain the CQ by invoking the Poll CQ verb and either wait for CQ
218 * to be empty or the number of Poll CQ operations has exceeded
219 * CQ capacity size;
220 * - or
221 * post another WR that completes on the same CQ and wait for this
222 * WR to return as a WC;
223 * - and then invoke a Destroy QP or Reset QP.
224 *
225 * We use the second option and wait for a completion on the
226 * same CQ before destroying QPs attached to our SRQ.
227 */
228
229 enum ipoib_cm_state {
230 IPOIB_CM_RX_LIVE,
231 IPOIB_CM_RX_ERROR, /* Ignored by stale task */
232 IPOIB_CM_RX_FLUSH /* Last WQE Reached event observed */
233 };
234
235 struct ipoib_cm_rx {
236 struct ib_cm_id *id;
237 struct ib_qp *qp;
238 struct ipoib_cm_rx_buf *rx_ring;
239 struct list_head list;
240 struct net_device *dev;
241 unsigned long jiffies;
242 enum ipoib_cm_state state;
243 int recv_count;
244 };
245
246 struct ipoib_cm_tx {
247 struct ib_cm_id *id;
248 struct ib_qp *qp;
249 struct list_head list;
250 struct net_device *dev;
251 struct ipoib_neigh *neigh;
252 struct ipoib_path *path;
253 struct ipoib_tx_buf *tx_ring;
254 unsigned tx_head;
255 unsigned tx_tail;
256 unsigned long flags;
257 u32 mtu;
258 unsigned max_send_sge;
259 };
260
261 struct ipoib_cm_rx_buf {
262 struct sk_buff *skb;
263 u64 mapping[IPOIB_CM_RX_SG];
264 };
265
266 struct ipoib_cm_dev_priv {
267 struct ib_srq *srq;
268 struct ipoib_cm_rx_buf *srq_ring;
269 struct ib_cm_id *id;
270 struct list_head passive_ids; /* state: LIVE */
271 struct list_head rx_error_list; /* state: ERROR */
272 struct list_head rx_flush_list; /* state: FLUSH, drain not started */
273 struct list_head rx_drain_list; /* state: FLUSH, drain started */
274 struct list_head rx_reap_list; /* state: FLUSH, drain done */
275 struct work_struct start_task;
276 struct work_struct reap_task;
277 struct work_struct skb_task;
278 struct work_struct rx_reap_task;
279 struct delayed_work stale_task;
280 struct sk_buff_head skb_queue;
281 struct list_head start_list;
282 struct list_head reap_list;
283 struct ib_wc ibwc[IPOIB_NUM_WC];
284 struct ib_sge rx_sge[IPOIB_CM_RX_SG];
285 struct ib_recv_wr rx_wr;
286 int nonsrq_conn_qp;
287 int max_cm_mtu;
288 int num_frags;
289 };
290
291 struct ipoib_ethtool_st {
292 u16 coalesce_usecs;
293 u16 max_coalesced_frames;
294 };
295
296 struct ipoib_neigh_table;
297
298 struct ipoib_neigh_hash {
299 struct ipoib_neigh_table *ntbl;
300 struct ipoib_neigh __rcu **buckets;
301 struct rcu_head rcu;
302 u32 mask;
303 u32 size;
304 };
305
306 struct ipoib_neigh_table {
307 struct ipoib_neigh_hash __rcu *htbl;
308 atomic_t entries;
309 struct completion flushed;
310 struct completion deleted;
311 };
312
313 struct ipoib_qp_state_validate {
314 struct work_struct work;
315 struct ipoib_dev_priv *priv;
316 };
317
318 /*
319 * Device private locking: network stack tx_lock protects members used
320 * in TX fast path, lock protects everything else. lock nests inside
321 * of tx_lock (ie tx_lock must be acquired first if needed).
322 */
323 struct ipoib_dev_priv {
324 spinlock_t lock;
325
326 struct net_device *dev;
327
328 struct napi_struct napi;
329
330 unsigned long flags;
331
332 struct rw_semaphore vlan_rwsem;
333
334 struct rb_root path_tree;
335 struct list_head path_list;
336
337 struct ipoib_neigh_table ntbl;
338
339 struct ipoib_mcast *broadcast;
340 struct list_head multicast_list;
341 struct rb_root multicast_tree;
342
343 struct workqueue_struct *wq;
344 struct delayed_work mcast_task;
345 struct work_struct carrier_on_task;
346 struct work_struct flush_light;
347 struct work_struct flush_normal;
348 struct work_struct flush_heavy;
349 struct work_struct restart_task;
350 struct delayed_work ah_reap_task;
351 struct delayed_work neigh_reap_task;
352 struct ib_device *ca;
353 u8 port;
354 u16 pkey;
355 u16 pkey_index;
356 struct ib_pd *pd;
357 struct ib_cq *recv_cq;
358 struct ib_cq *send_cq;
359 struct ib_qp *qp;
360 u32 qkey;
361
362 union ib_gid local_gid;
363 u16 local_lid;
364
365 unsigned int admin_mtu;
366 unsigned int mcast_mtu;
367 unsigned int max_ib_mtu;
368
369 struct ipoib_rx_buf *rx_ring;
370
371 struct ipoib_tx_buf *tx_ring;
372 unsigned tx_head;
373 unsigned tx_tail;
374 struct ib_sge tx_sge[MAX_SKB_FRAGS + 1];
375 struct ib_ud_wr tx_wr;
376 unsigned tx_outstanding;
377 struct ib_wc send_wc[MAX_SEND_CQE];
378
379 struct ib_recv_wr rx_wr;
380 struct ib_sge rx_sge[IPOIB_UD_RX_SG];
381
382 struct ib_wc ibwc[IPOIB_NUM_WC];
383
384 struct list_head dead_ahs;
385
386 struct ib_event_handler event_handler;
387
388 struct net_device *parent;
389 struct list_head child_intfs;
390 struct list_head list;
391 int child_type;
392
393 #ifdef CONFIG_INFINIBAND_IPOIB_CM
394 struct ipoib_cm_dev_priv cm;
395 #endif
396
397 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
398 struct list_head fs_list;
399 struct dentry *mcg_dentry;
400 struct dentry *path_dentry;
401 #endif
402 u64 hca_caps;
403 struct ipoib_ethtool_st ethtool;
404 struct timer_list poll_timer;
405 unsigned max_send_sge;
406 bool sm_fullmember_sendonly_support;
407 };
408
409 struct ipoib_ah {
410 struct net_device *dev;
411 struct ib_ah *ah;
412 struct list_head list;
413 struct kref ref;
414 unsigned last_send;
415 };
416
417 struct ipoib_path {
418 struct net_device *dev;
419 struct ib_sa_path_rec pathrec;
420 struct ipoib_ah *ah;
421 struct sk_buff_head queue;
422
423 struct list_head neigh_list;
424
425 int query_id;
426 struct ib_sa_query *query;
427 struct completion done;
428
429 struct rb_node rb_node;
430 struct list_head list;
431 int valid;
432 };
433
434 struct ipoib_neigh {
435 struct ipoib_ah *ah;
436 #ifdef CONFIG_INFINIBAND_IPOIB_CM
437 struct ipoib_cm_tx *cm;
438 #endif
439 u8 daddr[INFINIBAND_ALEN];
440 struct sk_buff_head queue;
441
442 struct net_device *dev;
443
444 struct list_head list;
445 struct ipoib_neigh __rcu *hnext;
446 struct rcu_head rcu;
447 atomic_t refcnt;
448 unsigned long alive;
449 };
450
451 #define IPOIB_UD_MTU(ib_mtu) (ib_mtu - IPOIB_ENCAP_LEN)
452 #define IPOIB_UD_BUF_SIZE(ib_mtu) (ib_mtu + IB_GRH_BYTES)
453
454 void ipoib_neigh_dtor(struct ipoib_neigh *neigh);
455 static inline void ipoib_neigh_put(struct ipoib_neigh *neigh)
456 {
457 if (atomic_dec_and_test(&neigh->refcnt))
458 ipoib_neigh_dtor(neigh);
459 }
460 struct ipoib_neigh *ipoib_neigh_get(struct net_device *dev, u8 *daddr);
461 struct ipoib_neigh *ipoib_neigh_alloc(u8 *daddr,
462 struct net_device *dev);
463 void ipoib_neigh_free(struct ipoib_neigh *neigh);
464 void ipoib_del_neighs_by_gid(struct net_device *dev, u8 *gid);
465
466 extern struct workqueue_struct *ipoib_workqueue;
467
468 /* functions */
469
470 int ipoib_poll(struct napi_struct *napi, int budget);
471 void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr);
472 void ipoib_send_comp_handler(struct ib_cq *cq, void *dev_ptr);
473
474 struct ipoib_ah *ipoib_create_ah(struct net_device *dev,
475 struct ib_pd *pd, struct ib_ah_attr *attr);
476 void ipoib_free_ah(struct kref *kref);
477 static inline void ipoib_put_ah(struct ipoib_ah *ah)
478 {
479 kref_put(&ah->ref, ipoib_free_ah);
480 }
481 int ipoib_open(struct net_device *dev);
482 int ipoib_add_pkey_attr(struct net_device *dev);
483 int ipoib_add_umcast_attr(struct net_device *dev);
484
485 void ipoib_send(struct net_device *dev, struct sk_buff *skb,
486 struct ipoib_ah *address, u32 qpn);
487 void ipoib_reap_ah(struct work_struct *work);
488
489 struct ipoib_path *__path_find(struct net_device *dev, void *gid);
490 void ipoib_mark_paths_invalid(struct net_device *dev);
491 void ipoib_flush_paths(struct net_device *dev);
492 int ipoib_check_sm_sendonly_fullmember_support(struct ipoib_dev_priv *priv);
493 struct ipoib_dev_priv *ipoib_intf_alloc(const char *format);
494
495 int ipoib_ib_dev_init(struct net_device *dev, struct ib_device *ca, int port);
496 void ipoib_ib_dev_flush_light(struct work_struct *work);
497 void ipoib_ib_dev_flush_normal(struct work_struct *work);
498 void ipoib_ib_dev_flush_heavy(struct work_struct *work);
499 void ipoib_pkey_event(struct work_struct *work);
500 void ipoib_ib_dev_cleanup(struct net_device *dev);
501
502 int ipoib_ib_dev_open(struct net_device *dev);
503 int ipoib_ib_dev_up(struct net_device *dev);
504 int ipoib_ib_dev_down(struct net_device *dev);
505 int ipoib_ib_dev_stop(struct net_device *dev);
506 void ipoib_pkey_dev_check_presence(struct net_device *dev);
507
508 int ipoib_dev_init(struct net_device *dev, struct ib_device *ca, int port);
509 void ipoib_dev_cleanup(struct net_device *dev);
510
511 void ipoib_mcast_join_task(struct work_struct *work);
512 void ipoib_mcast_carrier_on_task(struct work_struct *work);
513 void ipoib_mcast_send(struct net_device *dev, u8 *daddr, struct sk_buff *skb);
514
515 void ipoib_mcast_restart_task(struct work_struct *work);
516 int ipoib_mcast_start_thread(struct net_device *dev);
517 int ipoib_mcast_stop_thread(struct net_device *dev);
518
519 void ipoib_mcast_dev_down(struct net_device *dev);
520 void ipoib_mcast_dev_flush(struct net_device *dev);
521
522 int ipoib_dma_map_tx(struct ib_device *ca, struct ipoib_tx_buf *tx_req);
523 void ipoib_dma_unmap_tx(struct ipoib_dev_priv *priv,
524 struct ipoib_tx_buf *tx_req);
525
526 static inline void ipoib_build_sge(struct ipoib_dev_priv *priv,
527 struct ipoib_tx_buf *tx_req)
528 {
529 int i, off;
530 struct sk_buff *skb = tx_req->skb;
531 skb_frag_t *frags = skb_shinfo(skb)->frags;
532 int nr_frags = skb_shinfo(skb)->nr_frags;
533 u64 *mapping = tx_req->mapping;
534
535 if (skb_headlen(skb)) {
536 priv->tx_sge[0].addr = mapping[0];
537 priv->tx_sge[0].length = skb_headlen(skb);
538 off = 1;
539 } else
540 off = 0;
541
542 for (i = 0; i < nr_frags; ++i) {
543 priv->tx_sge[i + off].addr = mapping[i + off];
544 priv->tx_sge[i + off].length = skb_frag_size(&frags[i]);
545 }
546 priv->tx_wr.wr.num_sge = nr_frags + off;
547 }
548
549 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
550 struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct net_device *dev);
551 int ipoib_mcast_iter_next(struct ipoib_mcast_iter *iter);
552 void ipoib_mcast_iter_read(struct ipoib_mcast_iter *iter,
553 union ib_gid *gid,
554 unsigned long *created,
555 unsigned int *queuelen,
556 unsigned int *complete,
557 unsigned int *send_only);
558
559 struct ipoib_path_iter *ipoib_path_iter_init(struct net_device *dev);
560 int ipoib_path_iter_next(struct ipoib_path_iter *iter);
561 void ipoib_path_iter_read(struct ipoib_path_iter *iter,
562 struct ipoib_path *path);
563 #endif
564
565 int ipoib_mcast_attach(struct net_device *dev, u16 mlid,
566 union ib_gid *mgid, int set_qkey);
567 void ipoib_mcast_remove_list(struct list_head *remove_list);
568 void ipoib_check_and_add_mcast_sendonly(struct ipoib_dev_priv *priv, u8 *mgid,
569 struct list_head *remove_list);
570
571 int ipoib_init_qp(struct net_device *dev);
572 int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca);
573 void ipoib_transport_dev_cleanup(struct net_device *dev);
574
575 void ipoib_event(struct ib_event_handler *handler,
576 struct ib_event *record);
577
578 int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey);
579 int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey);
580
581 int __ipoib_vlan_add(struct ipoib_dev_priv *ppriv, struct ipoib_dev_priv *priv,
582 u16 pkey, int child_type);
583
584 int __init ipoib_netlink_init(void);
585 void __exit ipoib_netlink_fini(void);
586
587 void ipoib_set_umcast(struct net_device *ndev, int umcast_val);
588 int ipoib_set_mode(struct net_device *dev, const char *buf);
589
590 void ipoib_setup(struct net_device *dev);
591
592 void ipoib_pkey_open(struct ipoib_dev_priv *priv);
593 void ipoib_drain_cq(struct net_device *dev);
594
595 void ipoib_set_ethtool_ops(struct net_device *dev);
596 int ipoib_set_dev_features(struct ipoib_dev_priv *priv, struct ib_device *hca);
597
598 #define IPOIB_FLAGS_RC 0x80
599 #define IPOIB_FLAGS_UC 0x40
600
601 /* We don't support UC connections at the moment */
602 #define IPOIB_CM_SUPPORTED(ha) (ha[0] & (IPOIB_FLAGS_RC))
603
604 #ifdef CONFIG_INFINIBAND_IPOIB_CM
605
606 extern int ipoib_max_conn_qp;
607
608 static inline int ipoib_cm_admin_enabled(struct net_device *dev)
609 {
610 struct ipoib_dev_priv *priv = netdev_priv(dev);
611 return IPOIB_CM_SUPPORTED(dev->dev_addr) &&
612 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
613 }
614
615 static inline int ipoib_cm_enabled(struct net_device *dev, u8 *hwaddr)
616 {
617 struct ipoib_dev_priv *priv = netdev_priv(dev);
618 return IPOIB_CM_SUPPORTED(hwaddr) &&
619 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
620 }
621
622 static inline int ipoib_cm_up(struct ipoib_neigh *neigh)
623
624 {
625 return test_bit(IPOIB_FLAG_OPER_UP, &neigh->cm->flags);
626 }
627
628 static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh)
629 {
630 return neigh->cm;
631 }
632
633 static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx)
634 {
635 neigh->cm = tx;
636 }
637
638 static inline int ipoib_cm_has_srq(struct net_device *dev)
639 {
640 struct ipoib_dev_priv *priv = netdev_priv(dev);
641 return !!priv->cm.srq;
642 }
643
644 static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev)
645 {
646 struct ipoib_dev_priv *priv = netdev_priv(dev);
647 return priv->cm.max_cm_mtu;
648 }
649
650 void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx);
651 int ipoib_cm_dev_open(struct net_device *dev);
652 void ipoib_cm_dev_stop(struct net_device *dev);
653 int ipoib_cm_dev_init(struct net_device *dev);
654 int ipoib_cm_add_mode_attr(struct net_device *dev);
655 void ipoib_cm_dev_cleanup(struct net_device *dev);
656 struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path,
657 struct ipoib_neigh *neigh);
658 void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx);
659 void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb,
660 unsigned int mtu);
661 void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc);
662 void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc);
663 #else
664
665 struct ipoib_cm_tx;
666
667 #define ipoib_max_conn_qp 0
668
669 static inline int ipoib_cm_admin_enabled(struct net_device *dev)
670 {
671 return 0;
672 }
673 static inline int ipoib_cm_enabled(struct net_device *dev, u8 *hwaddr)
674
675 {
676 return 0;
677 }
678
679 static inline int ipoib_cm_up(struct ipoib_neigh *neigh)
680
681 {
682 return 0;
683 }
684
685 static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh)
686 {
687 return NULL;
688 }
689
690 static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx)
691 {
692 }
693
694 static inline int ipoib_cm_has_srq(struct net_device *dev)
695 {
696 return 0;
697 }
698
699 static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev)
700 {
701 return 0;
702 }
703
704 static inline
705 void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx)
706 {
707 return;
708 }
709
710 static inline
711 int ipoib_cm_dev_open(struct net_device *dev)
712 {
713 return 0;
714 }
715
716 static inline
717 void ipoib_cm_dev_stop(struct net_device *dev)
718 {
719 return;
720 }
721
722 static inline
723 int ipoib_cm_dev_init(struct net_device *dev)
724 {
725 return -ENOSYS;
726 }
727
728 static inline
729 void ipoib_cm_dev_cleanup(struct net_device *dev)
730 {
731 return;
732 }
733
734 static inline
735 struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path,
736 struct ipoib_neigh *neigh)
737 {
738 return NULL;
739 }
740
741 static inline
742 void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx)
743 {
744 return;
745 }
746
747 static inline
748 int ipoib_cm_add_mode_attr(struct net_device *dev)
749 {
750 return 0;
751 }
752
753 static inline void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb,
754 unsigned int mtu)
755 {
756 dev_kfree_skb_any(skb);
757 }
758
759 static inline void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
760 {
761 }
762
763 static inline void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc)
764 {
765 }
766 #endif
767
768 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
769 void ipoib_create_debug_files(struct net_device *dev);
770 void ipoib_delete_debug_files(struct net_device *dev);
771 int ipoib_register_debugfs(void);
772 void ipoib_unregister_debugfs(void);
773 #else
774 static inline void ipoib_create_debug_files(struct net_device *dev) { }
775 static inline void ipoib_delete_debug_files(struct net_device *dev) { }
776 static inline int ipoib_register_debugfs(void) { return 0; }
777 static inline void ipoib_unregister_debugfs(void) { }
778 #endif
779
780 #define ipoib_printk(level, priv, format, arg...) \
781 printk(level "%s: " format, ((struct ipoib_dev_priv *) priv)->dev->name , ## arg)
782 #define ipoib_warn(priv, format, arg...) \
783 do { \
784 static DEFINE_RATELIMIT_STATE(_rs, \
785 10 * HZ /*10 seconds */, \
786 100); \
787 if (__ratelimit(&_rs)) \
788 ipoib_printk(KERN_WARNING, priv, format , ## arg);\
789 } while (0)
790
791 extern int ipoib_sendq_size;
792 extern int ipoib_recvq_size;
793
794 extern struct ib_sa_client ipoib_sa_client;
795
796 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
797 extern int ipoib_debug_level;
798
799 #define ipoib_dbg(priv, format, arg...) \
800 do { \
801 if (ipoib_debug_level > 0) \
802 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
803 } while (0)
804 #define ipoib_dbg_mcast(priv, format, arg...) \
805 do { \
806 if (mcast_debug_level > 0) \
807 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
808 } while (0)
809 #else /* CONFIG_INFINIBAND_IPOIB_DEBUG */
810 #define ipoib_dbg(priv, format, arg...) \
811 do { (void) (priv); } while (0)
812 #define ipoib_dbg_mcast(priv, format, arg...) \
813 do { (void) (priv); } while (0)
814 #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */
815
816 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG_DATA
817 #define ipoib_dbg_data(priv, format, arg...) \
818 do { \
819 if (data_debug_level > 0) \
820 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
821 } while (0)
822 #else /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
823 #define ipoib_dbg_data(priv, format, arg...) \
824 do { (void) (priv); } while (0)
825 #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
826
827 #define IPOIB_QPN(ha) (be32_to_cpup((__be32 *) ha) & 0xffffff)
828
829 extern const char ipoib_driver_version[];
830
831 #endif /* _IPOIB_H */
Linux with added FPC-III support