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IPoIB: Add high DMA feature flag
[mirror_ubuntu-artful-kernel.git] / drivers / infiniband / ulp / ipoib / ipoib.h
CommitLineData
1da177e4
LT		 1/*
2 * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
2a1d9b7f
RD		 3 * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
4 * Copyright (c) 2004 Voltaire, Inc. All rights reserved.
1da177e4
LT		 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 * $Id: ipoib.h 1358 2004-12-17 22:00:11Z roland $
35 */
36
37#ifndef _IPOIB_H
38#define _IPOIB_H
39
40#include <linux/list.h>
41#include <linux/skbuff.h>
42#include <linux/netdevice.h>
43#include <linux/workqueue.h>
1da177e4
LT		 44#include <linux/kref.h>
45#include <linux/if_infiniband.h>
95ed644f 46#include <linux/mutex.h>
1da177e4
LT		 47
48#include <net/neighbour.h>
49
50#include <asm/atomic.h>
1da177e4 51
a4d61e84
RD		 52#include <rdma/ib_verbs.h>
53#include <rdma/ib_pack.h>
54#include <rdma/ib_sa.h>
1da177e4
LT		 55
56/* constants */
57
58enum {
2337f809
RD		 59 IPOIB_PACKET_SIZE = 2048,
60 IPOIB_BUF_SIZE = IPOIB_PACKET_SIZE + IB_GRH_BYTES,
1da177e4 61
2337f809 62 IPOIB_ENCAP_LEN = 4,
1da177e4 63
2337f809
RD		 64 IPOIB_CM_MTU = 0x10000 - 0x10, /* padding to align header to 16 */
65 IPOIB_CM_BUF_SIZE = IPOIB_CM_MTU + IPOIB_ENCAP_LEN,
66 IPOIB_CM_HEAD_SIZE = IPOIB_CM_BUF_SIZE % PAGE_SIZE,
67 IPOIB_CM_RX_SG = ALIGN(IPOIB_CM_BUF_SIZE, PAGE_SIZE) / PAGE_SIZE,
68 IPOIB_RX_RING_SIZE = 128,
69 IPOIB_TX_RING_SIZE = 64,
0f485251
SM		 70 IPOIB_MAX_QUEUE_SIZE = 8192,
71 IPOIB_MIN_QUEUE_SIZE = 2,
68e995a2 72 IPOIB_CM_MAX_CONN_QP = 4096,
1da177e4 73
2337f809 74 IPOIB_NUM_WC = 4,
1da177e4
LT		 75
76 IPOIB_MAX_PATH_REC_QUEUE = 3,
2337f809
RD		 77 IPOIB_MAX_MCAST_QUEUE = 3,
78
79 IPOIB_FLAG_OPER_UP = 0,
80 IPOIB_FLAG_INITIALIZED = 1,
81 IPOIB_FLAG_ADMIN_UP = 2,
82 IPOIB_PKEY_ASSIGNED = 3,
83 IPOIB_PKEY_STOP = 4,
84 IPOIB_FLAG_SUBINTERFACE = 5,
85 IPOIB_MCAST_RUN = 6,
86 IPOIB_STOP_REAPER = 7,
87 IPOIB_MCAST_STARTED = 8,
88 IPOIB_FLAG_ADMIN_CM = 9,
1b524963 89 IPOIB_FLAG_UMCAST = 10,
1da177e4
LT		 90
91 IPOIB_MAX_BACKOFF_SECONDS = 16,
92
2337f809 93 IPOIB_MCAST_FLAG_FOUND = 0, /* used in set_multicast_list */
1da177e4 94 IPOIB_MCAST_FLAG_SENDONLY = 1,
2337f809 95 IPOIB_MCAST_FLAG_BUSY = 2, /* joining or already joined */
1da177e4
LT		 96 IPOIB_MCAST_FLAG_ATTACHED = 3,
97};
98
839fcaba
MT		 99#define IPOIB_OP_RECV (1ul << 31)
100#ifdef CONFIG_INFINIBAND_IPOIB_CM
1b524963 101#define IPOIB_OP_CM (1ul << 30)
839fcaba 102#else
1b524963 103#define IPOIB_OP_CM (0)
839fcaba
MT		 104#endif
105
1da177e4
LT		 106/* structs */
107
108struct ipoib_header {
97f52eb4
SH		 109 __be16 proto;
110 u16 reserved;
1da177e4
LT		 111};
112
113struct ipoib_pseudoheader {
114 u8 hwaddr[INFINIBAND_ALEN];
115};
116
81668838
SH		 117/* Used for all multicast joins (broadcast, IPv4 mcast and IPv6 mcast) */
118struct ipoib_mcast {
119 struct ib_sa_mcmember_rec mcmember;
120 struct ib_sa_multicast *mc;
2337f809 121 struct ipoib_ah *ah;
81668838
SH		 122
123 struct rb_node rb_node;
124 struct list_head list;
125
126 unsigned long created;
127 unsigned long backoff;
128
129 unsigned long flags;
130 unsigned char logcount;
131
132 struct list_head neigh_list;
133
134 struct sk_buff_head pkt_queue;
135
136 struct net_device *dev;
137};
1da177e4 138
1993d683
RD		 139struct ipoib_rx_buf {
140 struct sk_buff *skb;
37ccf9df 141 u64 mapping;
1993d683
RD		 142};
143
144struct ipoib_tx_buf {
1da177e4 145 struct sk_buff *skb;
37ccf9df 146 u64 mapping;
1da177e4
LT		 147};
148
839fcaba
MT		 149struct ib_cm_id;
150
151struct ipoib_cm_data {
152 __be32 qpn; /* High byte MUST be ignored on receive */
153 __be32 mtu;
154};
155
518b1646
MT		 156/*
157 * Quoting 10.3.1 Queue Pair and EE Context States:
158 *
159 * Note, for QPs that are associated with an SRQ, the Consumer should take the
160 * QP through the Error State before invoking a Destroy QP or a Modify QP to the
161 * Reset State. The Consumer may invoke the Destroy QP without first performing
162 * a Modify QP to the Error State and waiting for the Affiliated Asynchronous
163 * Last WQE Reached Event. However, if the Consumer does not wait for the
164 * Affiliated Asynchronous Last WQE Reached Event, then WQE and Data Segment
165 * leakage may occur. Therefore, it is good programming practice to tear down a
166 * QP that is associated with an SRQ by using the following process:
167 *
168 * - Put the QP in the Error State
169 * - Wait for the Affiliated Asynchronous Last WQE Reached Event;
170 * - either:
171 * drain the CQ by invoking the Poll CQ verb and either wait for CQ
172 * to be empty or the number of Poll CQ operations has exceeded
173 * CQ capacity size;
174 * - or
175 * post another WR that completes on the same CQ and wait for this
176 * WR to return as a WC;
177 * - and then invoke a Destroy QP or Reset QP.
178 *
179 * We use the second option and wait for a completion on the
ec56dc0b 180 * same CQ before destroying QPs attached to our SRQ.
518b1646
MT		 181 */
182
183enum ipoib_cm_state {
184 IPOIB_CM_RX_LIVE,
185 IPOIB_CM_RX_ERROR, /* Ignored by stale task */
186 IPOIB_CM_RX_FLUSH /* Last WQE Reached event observed */
187};
188
839fcaba 189struct ipoib_cm_rx {
2337f809
RD		 190 struct ib_cm_id *id;
191 struct ib_qp *qp;
68e995a2 192 struct ipoib_cm_rx_buf *rx_ring;
2337f809
RD		 193 struct list_head list;
194 struct net_device *dev;
195 unsigned long jiffies;
196 enum ipoib_cm_state state;
68e995a2 197 int recv_count;
839fcaba
MT		 198};
199
200struct ipoib_cm_tx {
2337f809
RD		 201 struct ib_cm_id *id;
202 struct ib_qp *qp;
839fcaba
MT		 203 struct list_head list;
204 struct net_device *dev;
205 struct ipoib_neigh *neigh;
206 struct ipoib_path *path;
207 struct ipoib_tx_buf *tx_ring;
2337f809
RD		 208 unsigned tx_head;
209 unsigned tx_tail;
210 unsigned long flags;
211 u32 mtu;
212 struct ib_wc ibwc[IPOIB_NUM_WC];
839fcaba
MT		 213};
214
215struct ipoib_cm_rx_buf {
216 struct sk_buff *skb;
217 u64 mapping[IPOIB_CM_RX_SG];
218};
219
220struct ipoib_cm_dev_priv {
2337f809 221 struct ib_srq *srq;
839fcaba 222 struct ipoib_cm_rx_buf *srq_ring;
2337f809
RD		 223 struct ib_cm_id *id;
224 struct list_head passive_ids; /* state: LIVE */
225 struct list_head rx_error_list; /* state: ERROR */
226 struct list_head rx_flush_list; /* state: FLUSH, drain not started */
227 struct list_head rx_drain_list; /* state: FLUSH, drain started */
228 struct list_head rx_reap_list; /* state: FLUSH, drain done */
839fcaba
MT		 229 struct work_struct start_task;
230 struct work_struct reap_task;
231 struct work_struct skb_task;
518b1646 232 struct work_struct rx_reap_task;
839fcaba
MT		 233 struct delayed_work stale_task;
234 struct sk_buff_head skb_queue;
2337f809
RD		 235 struct list_head start_list;
236 struct list_head reap_list;
237 struct ib_wc ibwc[IPOIB_NUM_WC];
238 struct ib_sge rx_sge[IPOIB_CM_RX_SG];
839fcaba 239 struct ib_recv_wr rx_wr;
68e995a2 240 int nonsrq_conn_qp;
586a6934
PS		 241 int max_cm_mtu;
242 int num_frags;
839fcaba
MT		 243};
244
1da177e4
LT		 245/*
246 * Device private locking: tx_lock protects members used in TX fast
247 * path (and we use LLTX so upper layers don't do extra locking).
248 * lock protects everything else. lock nests inside of tx_lock (ie
249 * tx_lock must be acquired first if needed).
250 */
251struct ipoib_dev_priv {
252 spinlock_t lock;
253
254 struct net_device *dev;
255
bea3348e
SH		 256 struct napi_struct napi;
257
1da177e4
LT		 258 unsigned long flags;
259
95ed644f
IM		 260 struct mutex mcast_mutex;
261 struct mutex vlan_mutex;
1da177e4
LT		 262
263 struct rb_root path_tree;
264 struct list_head path_list;
265
266 struct ipoib_mcast *broadcast;
267 struct list_head multicast_list;
268 struct rb_root multicast_tree;
269
26bbf13c 270 struct delayed_work pkey_poll_task;
c4028958 271 struct delayed_work mcast_task;
1da177e4
LT		 272 struct work_struct flush_task;
273 struct work_struct restart_task;
c4028958 274 struct delayed_work ah_reap_task;
26bbf13c 275 struct work_struct pkey_event_task;
1da177e4
LT		 276
277 struct ib_device *ca;
2337f809
RD		 278 u8 port;
279 u16 pkey;
280 u16 pkey_index;
281 struct ib_pd *pd;
282 struct ib_mr *mr;
283 struct ib_cq *cq;
284 struct ib_qp *qp;
285 u32 qkey;
1da177e4
LT		 286
287 union ib_gid local_gid;
2337f809 288 u16 local_lid;
1da177e4
LT		 289
290 unsigned int admin_mtu;
291 unsigned int mcast_mtu;
292
1993d683 293 struct ipoib_rx_buf *rx_ring;
1da177e4 294
2337f809 295 spinlock_t tx_lock;
1993d683 296 struct ipoib_tx_buf *tx_ring;
2337f809
RD		 297 unsigned tx_head;
298 unsigned tx_tail;
299 struct ib_sge tx_sge;
1993d683 300 struct ib_send_wr tx_wr;
2337f809 301 unsigned tx_outstanding;
1da177e4
LT		 302
303 struct ib_wc ibwc[IPOIB_NUM_WC];
304
305 struct list_head dead_ahs;
306
307 struct ib_event_handler event_handler;
308
1da177e4
LT		 309 struct net_device *parent;
310 struct list_head child_intfs;
311 struct list_head list;
312
839fcaba
MT		 313#ifdef CONFIG_INFINIBAND_IPOIB_CM
314 struct ipoib_cm_dev_priv cm;
315#endif
316
1da177e4
LT		 317#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
318 struct list_head fs_list;
319 struct dentry *mcg_dentry;
1732b0ef 320 struct dentry *path_dentry;
1da177e4
LT		 321#endif
322};
323
324struct ipoib_ah {
325 struct net_device *dev;
2337f809 326 struct ib_ah *ah;
1da177e4 327 struct list_head list;
2337f809
RD		 328 struct kref ref;
329 unsigned last_send;
1da177e4
LT		 330};
331
332struct ipoib_path {
333 struct net_device *dev;
334 struct ib_sa_path_rec pathrec;
335 struct ipoib_ah *ah;
336 struct sk_buff_head queue;
337
338 struct list_head neigh_list;
339
2337f809 340 int query_id;
1da177e4
LT		 341 struct ib_sa_query *query;
342 struct completion done;
343
2337f809 344 struct rb_node rb_node;
1da177e4
LT		 345 struct list_head list;
346};
347
348struct ipoib_neigh {
349 struct ipoib_ah *ah;
839fcaba
MT		 350#ifdef CONFIG_INFINIBAND_IPOIB_CM
351 struct ipoib_cm_tx *cm;
352#endif
2337f809 353 union ib_gid dgid;
1da177e4
LT		 354 struct sk_buff_head queue;
355
356 struct neighbour *neighbour;
732a2170 357 struct net_device *dev;
1da177e4
LT		 358
359 struct list_head list;
360};
361
44af79f9
MT		 362/*
363 * We stash a pointer to our private neighbour information after our
364 * hardware address in neigh->ha. The ALIGN() expression here makes
365 * sure that this pointer is stored aligned so that an unaligned
366 * load is not needed to dereference it.
367 */
1da177e4
LT		 368static inline struct ipoib_neigh **to_ipoib_neigh(struct neighbour *neigh)
369{
44af79f9
MT		 370 return (void*) neigh + ALIGN(offsetof(struct neighbour, ha) +
371 INFINIBAND_ALEN, sizeof(void *));
1da177e4
LT		 372}
373
732a2170
MS		 374struct ipoib_neigh *ipoib_neigh_alloc(struct neighbour *neigh,
375 struct net_device *dev);
2745b5b7 376void ipoib_neigh_free(struct net_device *dev, struct ipoib_neigh *neigh);
d2e0655e 377
1da177e4
LT		 378extern struct workqueue_struct *ipoib_workqueue;
379
380/* functions */
381
bea3348e 382int ipoib_poll(struct napi_struct *napi, int budget);
1da177e4
LT		 383void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr);
384
385struct ipoib_ah *ipoib_create_ah(struct net_device *dev,
386 struct ib_pd *pd, struct ib_ah_attr *attr);
387void ipoib_free_ah(struct kref *kref);
388static inline void ipoib_put_ah(struct ipoib_ah *ah)
389{
390 kref_put(&ah->ref, ipoib_free_ah);
391}
392
8ae5a8a2 393int ipoib_open(struct net_device *dev);
1da177e4 394int ipoib_add_pkey_attr(struct net_device *dev);
335a64a5 395int ipoib_add_umcast_attr(struct net_device *dev);
1da177e4
LT		 396
397void ipoib_send(struct net_device *dev, struct sk_buff *skb,
398 struct ipoib_ah *address, u32 qpn);
c4028958 399void ipoib_reap_ah(struct work_struct *work);
1da177e4
LT		 400
401void ipoib_flush_paths(struct net_device *dev);
402struct ipoib_dev_priv *ipoib_intf_alloc(const char *format);
403
404int ipoib_ib_dev_init(struct net_device *dev, struct ib_device *ca, int port);
c4028958 405void ipoib_ib_dev_flush(struct work_struct *work);
26bbf13c 406void ipoib_pkey_event(struct work_struct *work);
1da177e4
LT		 407void ipoib_ib_dev_cleanup(struct net_device *dev);
408
409int ipoib_ib_dev_open(struct net_device *dev);
410int ipoib_ib_dev_up(struct net_device *dev);
0b3ea082 411int ipoib_ib_dev_down(struct net_device *dev, int flush);
26bbf13c 412int ipoib_ib_dev_stop(struct net_device *dev, int flush);
1da177e4
LT		 413
414int ipoib_dev_init(struct net_device *dev, struct ib_device *ca, int port);
415void ipoib_dev_cleanup(struct net_device *dev);
416
c4028958 417void ipoib_mcast_join_task(struct work_struct *work);
37c22a77 418void ipoib_mcast_send(struct net_device *dev, void *mgid, struct sk_buff *skb);
1da177e4 419
c4028958 420void ipoib_mcast_restart_task(struct work_struct *work);
1da177e4 421int ipoib_mcast_start_thread(struct net_device *dev);
8d2cae06 422int ipoib_mcast_stop_thread(struct net_device *dev, int flush);
1da177e4
LT		 423
424void ipoib_mcast_dev_down(struct net_device *dev);
425void ipoib_mcast_dev_flush(struct net_device *dev);
426
8ae5a8a2 427#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
1da177e4 428struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct net_device *dev);
1da177e4
LT		 429int ipoib_mcast_iter_next(struct ipoib_mcast_iter *iter);
430void ipoib_mcast_iter_read(struct ipoib_mcast_iter *iter,
431 union ib_gid *gid,
432 unsigned long *created,
433 unsigned int *queuelen,
434 unsigned int *complete,
435 unsigned int *send_only);
1732b0ef
RD		 436
437struct ipoib_path_iter *ipoib_path_iter_init(struct net_device *dev);
438int ipoib_path_iter_next(struct ipoib_path_iter *iter);
439void ipoib_path_iter_read(struct ipoib_path_iter *iter,
440 struct ipoib_path *path);
8ae5a8a2 441#endif
1da177e4
LT		 442
443int ipoib_mcast_attach(struct net_device *dev, u16 mlid,
444 union ib_gid *mgid);
445int ipoib_mcast_detach(struct net_device *dev, u16 mlid,
446 union ib_gid *mgid);
447
5b6810e0 448int ipoib_init_qp(struct net_device *dev);
1da177e4
LT		 449int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca);
450void ipoib_transport_dev_cleanup(struct net_device *dev);
451
452void ipoib_event(struct ib_event_handler *handler,
453 struct ib_event *record);
454
455int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey);
456int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey);
457
c4028958 458void ipoib_pkey_poll(struct work_struct *work);
1da177e4 459int ipoib_pkey_dev_delay_open(struct net_device *dev);
2dfbfc37 460void ipoib_drain_cq(struct net_device *dev);
1da177e4 461
839fcaba
MT		 462#ifdef CONFIG_INFINIBAND_IPOIB_CM
463
2337f809
RD		 464#define IPOIB_FLAGS_RC 0x80
465#define IPOIB_FLAGS_UC 0x40
839fcaba
MT		 466
467/* We don't support UC connections at the moment */
468#define IPOIB_CM_SUPPORTED(ha) (ha[0] & (IPOIB_FLAGS_RC))
469
68e995a2
PS		 470extern int ipoib_max_conn_qp;
471
839fcaba
MT		 472static inline int ipoib_cm_admin_enabled(struct net_device *dev)
473{
474 struct ipoib_dev_priv *priv = netdev_priv(dev);
475 return IPOIB_CM_SUPPORTED(dev->dev_addr) &&
476 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
477}
478
479static inline int ipoib_cm_enabled(struct net_device *dev, struct neighbour *n)
480{
481 struct ipoib_dev_priv *priv = netdev_priv(dev);
482 return IPOIB_CM_SUPPORTED(n->ha) &&
483 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
484}
485
486static inline int ipoib_cm_up(struct ipoib_neigh *neigh)
487
488{
489 return test_bit(IPOIB_FLAG_OPER_UP, &neigh->cm->flags);
490}
491
492static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh)
493{
494 return neigh->cm;
495}
496
497static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx)
498{
499 neigh->cm = tx;
500}
501
68e995a2
PS		 502static inline int ipoib_cm_has_srq(struct net_device *dev)
503{
504 struct ipoib_dev_priv *priv = netdev_priv(dev);
505 return !!priv->cm.srq;
506}
507
586a6934
PS		 508static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev)
509{
510 struct ipoib_dev_priv *priv = netdev_priv(dev);
511 return priv->cm.max_cm_mtu;
512}
513
839fcaba
MT		 514void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx);
515int ipoib_cm_dev_open(struct net_device *dev);
516void ipoib_cm_dev_stop(struct net_device *dev);
517int ipoib_cm_dev_init(struct net_device *dev);
518int ipoib_cm_add_mode_attr(struct net_device *dev);
519void ipoib_cm_dev_cleanup(struct net_device *dev);
520struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path,
521 struct ipoib_neigh *neigh);
522void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx);
2337f809 523void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb,
839fcaba
MT		 524 unsigned int mtu);
525void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc);
1b524963 526void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc);
839fcaba
MT		 527#else
528
529struct ipoib_cm_tx;
530
68e995a2
PS		 531#define ipoib_max_conn_qp 0
532
839fcaba
MT		 533static inline int ipoib_cm_admin_enabled(struct net_device *dev)
534{
535 return 0;
536}
537static inline int ipoib_cm_enabled(struct net_device *dev, struct neighbour *n)
538
539{
540 return 0;
541}
542
543static inline int ipoib_cm_up(struct ipoib_neigh *neigh)
544
545{
546 return 0;
547}
548
549static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh)
550{
551 return NULL;
552}
553
554static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx)
555{
556}
557
68e995a2
PS		 558static inline int ipoib_cm_has_srq(struct net_device *dev)
559{
560 return 0;
561}
562
586a6934
PS		 563static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev)
564{
565 return 0;
566}
567
839fcaba
MT		 568static inline
569void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx)
570{
571 return;
572}
573
574static inline
575int ipoib_cm_dev_open(struct net_device *dev)
576{
577 return 0;
578}
579
580static inline
581void ipoib_cm_dev_stop(struct net_device *dev)
582{
583 return;
584}
585
586static inline
587int ipoib_cm_dev_init(struct net_device *dev)
588{
589 return -ENOSYS;
590}
591
592static inline
593void ipoib_cm_dev_cleanup(struct net_device *dev)
594{
595 return;
596}
597
598static inline
599struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path,
600 struct ipoib_neigh *neigh)
601{
602 return NULL;
603}
604
605static inline
606void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx)
607{
608 return;
609}
610
611static inline
612int ipoib_cm_add_mode_attr(struct net_device *dev)
613{
614 return 0;
615}
616
2337f809 617static inline void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb,
839fcaba
MT		 618 unsigned int mtu)
619{
620 dev_kfree_skb_any(skb);
621}
622
623static inline void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
624{
625}
626
1b524963
MT		 627static inline void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc)
628{
629}
839fcaba
MT		 630#endif
631
1da177e4 632#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
1732b0ef
RD		 633void ipoib_create_debug_files(struct net_device *dev);
634void ipoib_delete_debug_files(struct net_device *dev);
1da177e4
LT		 635int ipoib_register_debugfs(void);
636void ipoib_unregister_debugfs(void);
637#else
1732b0ef
RD		 638static inline void ipoib_create_debug_files(struct net_device *dev) { }
639static inline void ipoib_delete_debug_files(struct net_device *dev) { }
1da177e4
LT		 640static inline int ipoib_register_debugfs(void) { return 0; }
641static inline void ipoib_unregister_debugfs(void) { }
642#endif
643
644
645#define ipoib_printk(level, priv, format, arg...) \
646 printk(level "%s: " format, ((struct ipoib_dev_priv *) priv)->dev->name , ## arg)
647#define ipoib_warn(priv, format, arg...) \
648 ipoib_printk(KERN_WARNING, priv, format , ## arg)
649
0f485251
SM		 650extern int ipoib_sendq_size;
651extern int ipoib_recvq_size;
1da177e4 652
c1a0b23b
MT		 653extern struct ib_sa_client ipoib_sa_client;
654
1da177e4
LT		 655#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
656extern int ipoib_debug_level;
657
658#define ipoib_dbg(priv, format, arg...) \
2337f809 659 do { \
1da177e4
LT		 660 if (ipoib_debug_level > 0) \
661 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
662 } while (0)
663#define ipoib_dbg_mcast(priv, format, arg...) \
2337f809 664 do { \
1da177e4
LT		 665 if (mcast_debug_level > 0) \
666 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
667 } while (0)
668#else /* CONFIG_INFINIBAND_IPOIB_DEBUG */
669#define ipoib_dbg(priv, format, arg...) \
670 do { (void) (priv); } while (0)
671#define ipoib_dbg_mcast(priv, format, arg...) \
672 do { (void) (priv); } while (0)
673#endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */
674
675#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG_DATA
676#define ipoib_dbg_data(priv, format, arg...) \
2337f809 677 do { \
1da177e4
LT		 678 if (data_debug_level > 0) \
679 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
680 } while (0)
681#else /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
682#define ipoib_dbg_data(priv, format, arg...) \
683 do { (void) (priv); } while (0)
684#endif /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
685
686
37c22a77
JM		 687#define IPOIB_GID_FMT "%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x:" \
688 "%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x"
689
690#define IPOIB_GID_RAW_ARG(gid) ((u8 *)(gid))[0], \
691 ((u8 *)(gid))[1], \
692 ((u8 *)(gid))[2], \
693 ((u8 *)(gid))[3], \
694 ((u8 *)(gid))[4], \
695 ((u8 *)(gid))[5], \
696 ((u8 *)(gid))[6], \
697 ((u8 *)(gid))[7], \
698 ((u8 *)(gid))[8], \
699 ((u8 *)(gid))[9], \
700 ((u8 *)(gid))[10],\
701 ((u8 *)(gid))[11],\
702 ((u8 *)(gid))[12],\
703 ((u8 *)(gid))[13],\
704 ((u8 *)(gid))[14],\
705 ((u8 *)(gid))[15]
706
707#define IPOIB_GID_ARG(gid) IPOIB_GID_RAW_ARG((gid).raw)
1da177e4 708
839fcaba
MT		 709#define IPOIB_QPN(ha) (be32_to_cpup((__be32 *) ha) & 0xffffff)
710
1da177e4 711#endif /* _IPOIB_H */
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