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[mirror_ubuntu-focal-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.
1da177e4
LT		 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>
1da177e4
LT		 42#include <linux/kref.h>
43#include <linux/if_infiniband.h>
95ed644f 44#include <linux/mutex.h>
1da177e4
LT		 45
46#include <net/neighbour.h>
47
60063497 48#include <linux/atomic.h>
1da177e4 49
a4d61e84
RD		 50#include <rdma/ib_verbs.h>
51#include <rdma/ib_pack.h>
52#include <rdma/ib_sa.h>
19e364f6 53#include <linux/sched.h>
1da177e4
LT		 54
55/* constants */
56
ee1e2c82
MS		 57enum ipoib_flush_level {
58 IPOIB_FLUSH_LIGHT,
59 IPOIB_FLUSH_NORMAL,
60 IPOIB_FLUSH_HEAVY
61};
62
1da177e4 63enum {
2337f809 64 IPOIB_ENCAP_LEN = 4,
1da177e4 65
bc7b3a36
SM		 66 IPOIB_UD_HEAD_SIZE = IB_GRH_BYTES + IPOIB_ENCAP_LEN,
67 IPOIB_UD_RX_SG = 2, /* max buffer needed for 4K mtu */
68
2337f809
RD		 69 IPOIB_CM_MTU = 0x10000 - 0x10, /* padding to align header to 16 */
70 IPOIB_CM_BUF_SIZE = IPOIB_CM_MTU + IPOIB_ENCAP_LEN,
71 IPOIB_CM_HEAD_SIZE = IPOIB_CM_BUF_SIZE % PAGE_SIZE,
72 IPOIB_CM_RX_SG = ALIGN(IPOIB_CM_BUF_SIZE, PAGE_SIZE) / PAGE_SIZE,
bc3a290b
EC		 73 IPOIB_RX_RING_SIZE = 256,
74 IPOIB_TX_RING_SIZE = 128,
0f485251
SM		 75 IPOIB_MAX_QUEUE_SIZE = 8192,
76 IPOIB_MIN_QUEUE_SIZE = 2,
68e995a2 77 IPOIB_CM_MAX_CONN_QP = 4096,
1da177e4 78
2337f809 79 IPOIB_NUM_WC = 4,
1da177e4
LT		 80
81 IPOIB_MAX_PATH_REC_QUEUE = 3,
2337f809
RD		 82 IPOIB_MAX_MCAST_QUEUE = 3,
83
84 IPOIB_FLAG_OPER_UP = 0,
85 IPOIB_FLAG_INITIALIZED = 1,
86 IPOIB_FLAG_ADMIN_UP = 2,
87 IPOIB_PKEY_ASSIGNED = 3,
88 IPOIB_PKEY_STOP = 4,
89 IPOIB_FLAG_SUBINTERFACE = 5,
90 IPOIB_MCAST_RUN = 6,
91 IPOIB_STOP_REAPER = 7,
2337f809 92 IPOIB_FLAG_ADMIN_CM = 9,
1b524963 93 IPOIB_FLAG_UMCAST = 10,
1da177e4
LT		 94
95 IPOIB_MAX_BACKOFF_SECONDS = 16,
96
2337f809 97 IPOIB_MCAST_FLAG_FOUND = 0, /* used in set_multicast_list */
1da177e4 98 IPOIB_MCAST_FLAG_SENDONLY = 1,
2337f809 99 IPOIB_MCAST_FLAG_BUSY = 2, /* joining or already joined */
1da177e4 100 IPOIB_MCAST_FLAG_ATTACHED = 3,
f56bcd80
EC		 101
102 MAX_SEND_CQE = 16,
f89271da 103 IPOIB_CM_COPYBREAK = 256,
1da177e4
LT		 104};
105
839fcaba
MT		 106#define IPOIB_OP_RECV (1ul << 31)
107#ifdef CONFIG_INFINIBAND_IPOIB_CM
1b524963 108#define IPOIB_OP_CM (1ul << 30)
839fcaba 109#else
1b524963 110#define IPOIB_OP_CM (0)
839fcaba
MT		 111#endif
112
1da177e4
LT		 113/* structs */
114
115struct ipoib_header {
97f52eb4
SH		 116 __be16 proto;
117 u16 reserved;
1da177e4
LT		 118};
119
120struct ipoib_pseudoheader {
121 u8 hwaddr[INFINIBAND_ALEN];
122};
123
81668838
SH		 124/* Used for all multicast joins (broadcast, IPv4 mcast and IPv6 mcast) */
125struct ipoib_mcast {
126 struct ib_sa_mcmember_rec mcmember;
127 struct ib_sa_multicast *mc;
2337f809 128 struct ipoib_ah *ah;
81668838
SH		 129
130 struct rb_node rb_node;
131 struct list_head list;
132
133 unsigned long created;
134 unsigned long backoff;
135
136 unsigned long flags;
137 unsigned char logcount;
138
139 struct list_head neigh_list;
140
141 struct sk_buff_head pkt_queue;
142
143 struct net_device *dev;
144};
1da177e4 145
1993d683
RD		 146struct ipoib_rx_buf {
147 struct sk_buff *skb;
bc7b3a36 148 u64 mapping[IPOIB_UD_RX_SG];
1993d683
RD		 149};
150
151struct ipoib_tx_buf {
1da177e4 152 struct sk_buff *skb;
7143740d 153 u64 mapping[MAX_SKB_FRAGS + 1];
1da177e4
LT		 154};
155
e112373f
EC		 156struct ipoib_cm_tx_buf {
157 struct sk_buff *skb;
158 u64 mapping;
159};
160
839fcaba
MT		 161struct ib_cm_id;
162
163struct ipoib_cm_data {
164 __be32 qpn; /* High byte MUST be ignored on receive */
165 __be32 mtu;
166};
167
518b1646
MT		 168/*
169 * Quoting 10.3.1 Queue Pair and EE Context States:
170 *
171 * Note, for QPs that are associated with an SRQ, the Consumer should take the
172 * QP through the Error State before invoking a Destroy QP or a Modify QP to the
173 * Reset State. The Consumer may invoke the Destroy QP without first performing
174 * a Modify QP to the Error State and waiting for the Affiliated Asynchronous
175 * Last WQE Reached Event. However, if the Consumer does not wait for the
176 * Affiliated Asynchronous Last WQE Reached Event, then WQE and Data Segment
177 * leakage may occur. Therefore, it is good programming practice to tear down a
178 * QP that is associated with an SRQ by using the following process:
179 *
180 * - Put the QP in the Error State
181 * - Wait for the Affiliated Asynchronous Last WQE Reached Event;
182 * - either:
183 * drain the CQ by invoking the Poll CQ verb and either wait for CQ
184 * to be empty or the number of Poll CQ operations has exceeded
185 * CQ capacity size;
186 * - or
187 * post another WR that completes on the same CQ and wait for this
188 * WR to return as a WC;
189 * - and then invoke a Destroy QP or Reset QP.
190 *
191 * We use the second option and wait for a completion on the
ec56dc0b 192 * same CQ before destroying QPs attached to our SRQ.
518b1646
MT		 193 */
194
195enum ipoib_cm_state {
196 IPOIB_CM_RX_LIVE,
197 IPOIB_CM_RX_ERROR, /* Ignored by stale task */
198 IPOIB_CM_RX_FLUSH /* Last WQE Reached event observed */
199};
200
839fcaba 201struct ipoib_cm_rx {
2337f809
RD		 202 struct ib_cm_id *id;
203 struct ib_qp *qp;
68e995a2 204 struct ipoib_cm_rx_buf *rx_ring;
2337f809
RD		 205 struct list_head list;
206 struct net_device *dev;
207 unsigned long jiffies;
208 enum ipoib_cm_state state;
68e995a2 209 int recv_count;
839fcaba
MT		 210};
211
212struct ipoib_cm_tx {
2337f809
RD		 213 struct ib_cm_id *id;
214 struct ib_qp *qp;
839fcaba
MT		 215 struct list_head list;
216 struct net_device *dev;
217 struct ipoib_neigh *neigh;
218 struct ipoib_path *path;
e112373f 219 struct ipoib_cm_tx_buf *tx_ring;
2337f809
RD		 220 unsigned tx_head;
221 unsigned tx_tail;
222 unsigned long flags;
223 u32 mtu;
839fcaba
MT		 224};
225
226struct ipoib_cm_rx_buf {
227 struct sk_buff *skb;
228 u64 mapping[IPOIB_CM_RX_SG];
229};
230
231struct ipoib_cm_dev_priv {
2337f809 232 struct ib_srq *srq;
839fcaba 233 struct ipoib_cm_rx_buf *srq_ring;
2337f809
RD		 234 struct ib_cm_id *id;
235 struct list_head passive_ids; /* state: LIVE */
236 struct list_head rx_error_list; /* state: ERROR */
237 struct list_head rx_flush_list; /* state: FLUSH, drain not started */
238 struct list_head rx_drain_list; /* state: FLUSH, drain started */
239 struct list_head rx_reap_list; /* state: FLUSH, drain done */
839fcaba
MT		 240 struct work_struct start_task;
241 struct work_struct reap_task;
242 struct work_struct skb_task;
518b1646 243 struct work_struct rx_reap_task;
839fcaba
MT		 244 struct delayed_work stale_task;
245 struct sk_buff_head skb_queue;
2337f809
RD		 246 struct list_head start_list;
247 struct list_head reap_list;
248 struct ib_wc ibwc[IPOIB_NUM_WC];
249 struct ib_sge rx_sge[IPOIB_CM_RX_SG];
839fcaba 250 struct ib_recv_wr rx_wr;
68e995a2 251 int nonsrq_conn_qp;
586a6934
PS		 252 int max_cm_mtu;
253 int num_frags;
839fcaba
MT		 254};
255
28d52b3c
EC		 256struct ipoib_ethtool_st {
257 u16 coalesce_usecs;
258 u16 max_coalesced_frames;
259};
260
1da177e4 261/*
943c246e
RD		 262 * Device private locking: network stack tx_lock protects members used
263 * in TX fast path, lock protects everything else. lock nests inside
264 * of tx_lock (ie tx_lock must be acquired first if needed).
1da177e4
LT		 265 */
266struct ipoib_dev_priv {
267 spinlock_t lock;
268
269 struct net_device *dev;
270
bea3348e
SH		 271 struct napi_struct napi;
272
1da177e4
LT		 273 unsigned long flags;
274
95ed644f 275 struct mutex vlan_mutex;
1da177e4
LT		 276
277 struct rb_root path_tree;
278 struct list_head path_list;
279
280 struct ipoib_mcast *broadcast;
281 struct list_head multicast_list;
282 struct rb_root multicast_tree;
283
26bbf13c 284 struct delayed_work pkey_poll_task;
c4028958 285 struct delayed_work mcast_task;
e8224e4b 286 struct work_struct carrier_on_task;
ee1e2c82
MS		 287 struct work_struct flush_light;
288 struct work_struct flush_normal;
289 struct work_struct flush_heavy;
1da177e4 290 struct work_struct restart_task;
c4028958 291 struct delayed_work ah_reap_task;
1da177e4
LT		 292
293 struct ib_device *ca;
2337f809
RD		 294 u8 port;
295 u16 pkey;
296 u16 pkey_index;
297 struct ib_pd *pd;
298 struct ib_mr *mr;
f56bcd80
EC		 299 struct ib_cq *recv_cq;
300 struct ib_cq *send_cq;
2337f809
RD		 301 struct ib_qp *qp;
302 u32 qkey;
1da177e4
LT		 303
304 union ib_gid local_gid;
2337f809 305 u16 local_lid;
1da177e4
LT		 306
307 unsigned int admin_mtu;
308 unsigned int mcast_mtu;
bc7b3a36 309 unsigned int max_ib_mtu;
1da177e4 310
1993d683 311 struct ipoib_rx_buf *rx_ring;
1da177e4 312
1993d683 313 struct ipoib_tx_buf *tx_ring;
2337f809
RD		 314 unsigned tx_head;
315 unsigned tx_tail;
7143740d 316 struct ib_sge tx_sge[MAX_SKB_FRAGS + 1];
1993d683 317 struct ib_send_wr tx_wr;
2337f809 318 unsigned tx_outstanding;
f56bcd80 319 struct ib_wc send_wc[MAX_SEND_CQE];
1da177e4 320
bc7b3a36
SM		 321 struct ib_recv_wr rx_wr;
322 struct ib_sge rx_sge[IPOIB_UD_RX_SG];
323
1da177e4
LT		 324 struct ib_wc ibwc[IPOIB_NUM_WC];
325
326 struct list_head dead_ahs;
327
328 struct ib_event_handler event_handler;
329
1da177e4
LT		 330 struct net_device *parent;
331 struct list_head child_intfs;
332 struct list_head list;
333
839fcaba
MT		 334#ifdef CONFIG_INFINIBAND_IPOIB_CM
335 struct ipoib_cm_dev_priv cm;
336#endif
337
1da177e4
LT		 338#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
339 struct list_head fs_list;
340 struct dentry *mcg_dentry;
1732b0ef 341 struct dentry *path_dentry;
1da177e4 342#endif
40ca1988 343 int hca_caps;
28d52b3c 344 struct ipoib_ethtool_st ethtool;
57ce41d1 345 struct timer_list poll_timer;
1da177e4
LT		 346};
347
348struct ipoib_ah {
349 struct net_device *dev;
2337f809 350 struct ib_ah *ah;
1da177e4 351 struct list_head list;
2337f809
RD		 352 struct kref ref;
353 unsigned last_send;
1da177e4
LT		 354};
355
356struct ipoib_path {
357 struct net_device *dev;
358 struct ib_sa_path_rec pathrec;
359 struct ipoib_ah *ah;
360 struct sk_buff_head queue;
361
362 struct list_head neigh_list;
363
2337f809 364 int query_id;
1da177e4
LT		 365 struct ib_sa_query *query;
366 struct completion done;
367
2337f809 368 struct rb_node rb_node;
1da177e4 369 struct list_head list;
ee1e2c82 370 int valid;
1da177e4
LT		 371};
372
373struct ipoib_neigh {
374 struct ipoib_ah *ah;
839fcaba
MT		 375#ifdef CONFIG_INFINIBAND_IPOIB_CM
376 struct ipoib_cm_tx *cm;
377#endif
2337f809 378 union ib_gid dgid;
1da177e4
LT		 379 struct sk_buff_head queue;
380
381 struct neighbour *neighbour;
732a2170 382 struct net_device *dev;
1da177e4
LT		 383
384 struct list_head list;
385};
386
bc7b3a36
SM		 387#define IPOIB_UD_MTU(ib_mtu) (ib_mtu - IPOIB_ENCAP_LEN)
388#define IPOIB_UD_BUF_SIZE(ib_mtu) (ib_mtu + IB_GRH_BYTES)
389
390static inline int ipoib_ud_need_sg(unsigned int ib_mtu)
391{
392 return IPOIB_UD_BUF_SIZE(ib_mtu) > PAGE_SIZE;
393}
394
44af79f9
MT		 395/*
396 * We stash a pointer to our private neighbour information after our
397 * hardware address in neigh->ha. The ALIGN() expression here makes
398 * sure that this pointer is stored aligned so that an unaligned
399 * load is not needed to dereference it.
400 */
1da177e4
LT		 401static inline struct ipoib_neigh **to_ipoib_neigh(struct neighbour *neigh)
402{
44af79f9
MT		 403 return (void*) neigh + ALIGN(offsetof(struct neighbour, ha) +
404 INFINIBAND_ALEN, sizeof(void *));
1da177e4
LT		 405}
406
732a2170
MS		 407struct ipoib_neigh *ipoib_neigh_alloc(struct neighbour *neigh,
408 struct net_device *dev);
2745b5b7 409void ipoib_neigh_free(struct net_device *dev, struct ipoib_neigh *neigh);
d2e0655e 410
1da177e4
LT		 411extern struct workqueue_struct *ipoib_workqueue;
412
413/* functions */
414
bea3348e 415int ipoib_poll(struct napi_struct *napi, int budget);
1da177e4 416void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr);
57ce41d1 417void ipoib_send_comp_handler(struct ib_cq *cq, void *dev_ptr);
1da177e4
LT		 418
419struct ipoib_ah *ipoib_create_ah(struct net_device *dev,
420 struct ib_pd *pd, struct ib_ah_attr *attr);
421void ipoib_free_ah(struct kref *kref);
422static inline void ipoib_put_ah(struct ipoib_ah *ah)
423{
424 kref_put(&ah->ref, ipoib_free_ah);
425}
426
8ae5a8a2 427int ipoib_open(struct net_device *dev);
1da177e4 428int ipoib_add_pkey_attr(struct net_device *dev);
335a64a5 429int ipoib_add_umcast_attr(struct net_device *dev);
1da177e4
LT		 430
431void ipoib_send(struct net_device *dev, struct sk_buff *skb,
432 struct ipoib_ah *address, u32 qpn);
c4028958 433void ipoib_reap_ah(struct work_struct *work);
1da177e4 434
ee1e2c82 435void ipoib_mark_paths_invalid(struct net_device *dev);
1da177e4
LT		 436void ipoib_flush_paths(struct net_device *dev);
437struct ipoib_dev_priv *ipoib_intf_alloc(const char *format);
438
439int ipoib_ib_dev_init(struct net_device *dev, struct ib_device *ca, int port);
ee1e2c82
MS		 440void ipoib_ib_dev_flush_light(struct work_struct *work);
441void ipoib_ib_dev_flush_normal(struct work_struct *work);
442void ipoib_ib_dev_flush_heavy(struct work_struct *work);
26bbf13c 443void ipoib_pkey_event(struct work_struct *work);
1da177e4
LT		 444void ipoib_ib_dev_cleanup(struct net_device *dev);
445
446int ipoib_ib_dev_open(struct net_device *dev);
447int ipoib_ib_dev_up(struct net_device *dev);
0b3ea082 448int ipoib_ib_dev_down(struct net_device *dev, int flush);
26bbf13c 449int ipoib_ib_dev_stop(struct net_device *dev, int flush);
1da177e4
LT		 450
451int ipoib_dev_init(struct net_device *dev, struct ib_device *ca, int port);
452void ipoib_dev_cleanup(struct net_device *dev);
453
c4028958 454void ipoib_mcast_join_task(struct work_struct *work);
e8224e4b 455void ipoib_mcast_carrier_on_task(struct work_struct *work);
37c22a77 456void ipoib_mcast_send(struct net_device *dev, void *mgid, struct sk_buff *skb);
1da177e4 457
c4028958 458void ipoib_mcast_restart_task(struct work_struct *work);
1da177e4 459int ipoib_mcast_start_thread(struct net_device *dev);
8d2cae06 460int ipoib_mcast_stop_thread(struct net_device *dev, int flush);
1da177e4
LT		 461
462void ipoib_mcast_dev_down(struct net_device *dev);
463void ipoib_mcast_dev_flush(struct net_device *dev);
464
8ae5a8a2 465#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
1da177e4 466struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct net_device *dev);
1da177e4
LT		 467int ipoib_mcast_iter_next(struct ipoib_mcast_iter *iter);
468void ipoib_mcast_iter_read(struct ipoib_mcast_iter *iter,
469 union ib_gid *gid,
470 unsigned long *created,
471 unsigned int *queuelen,
472 unsigned int *complete,
473 unsigned int *send_only);
1732b0ef
RD		 474
475struct ipoib_path_iter *ipoib_path_iter_init(struct net_device *dev);
476int ipoib_path_iter_next(struct ipoib_path_iter *iter);
477void ipoib_path_iter_read(struct ipoib_path_iter *iter,
478 struct ipoib_path *path);
8ae5a8a2 479#endif
1da177e4
LT		 480
481int ipoib_mcast_attach(struct net_device *dev, u16 mlid,
d0de1362 482 union ib_gid *mgid, int set_qkey);
1da177e4 483
5b6810e0 484int ipoib_init_qp(struct net_device *dev);
1da177e4
LT		 485int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca);
486void ipoib_transport_dev_cleanup(struct net_device *dev);
487
488void ipoib_event(struct ib_event_handler *handler,
489 struct ib_event *record);
490
491int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey);
492int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey);
493
c4028958 494void ipoib_pkey_poll(struct work_struct *work);
1da177e4 495int ipoib_pkey_dev_delay_open(struct net_device *dev);
2dfbfc37 496void ipoib_drain_cq(struct net_device *dev);
1da177e4 497
82c24c18 498void ipoib_set_ethtool_ops(struct net_device *dev);
83bb63f6 499int ipoib_set_dev_features(struct ipoib_dev_priv *priv, struct ib_device *hca);
82c24c18 500
839fcaba
MT		 501#ifdef CONFIG_INFINIBAND_IPOIB_CM
502
2337f809
RD		 503#define IPOIB_FLAGS_RC 0x80
504#define IPOIB_FLAGS_UC 0x40
839fcaba
MT		 505
506/* We don't support UC connections at the moment */
507#define IPOIB_CM_SUPPORTED(ha) (ha[0] & (IPOIB_FLAGS_RC))
508
68e995a2
PS		 509extern int ipoib_max_conn_qp;
510
839fcaba
MT		 511static inline int ipoib_cm_admin_enabled(struct net_device *dev)
512{
513 struct ipoib_dev_priv *priv = netdev_priv(dev);
514 return IPOIB_CM_SUPPORTED(dev->dev_addr) &&
515 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
516}
517
518static inline int ipoib_cm_enabled(struct net_device *dev, struct neighbour *n)
519{
520 struct ipoib_dev_priv *priv = netdev_priv(dev);
521 return IPOIB_CM_SUPPORTED(n->ha) &&
522 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
523}
524
525static inline int ipoib_cm_up(struct ipoib_neigh *neigh)
526
527{
528 return test_bit(IPOIB_FLAG_OPER_UP, &neigh->cm->flags);
529}
530
531static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh)
532{
533 return neigh->cm;
534}
535
536static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx)
537{
538 neigh->cm = tx;
539}
540
68e995a2
PS		 541static inline int ipoib_cm_has_srq(struct net_device *dev)
542{
543 struct ipoib_dev_priv *priv = netdev_priv(dev);
544 return !!priv->cm.srq;
545}
546
586a6934
PS		 547static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev)
548{
549 struct ipoib_dev_priv *priv = netdev_priv(dev);
550 return priv->cm.max_cm_mtu;
551}
552
839fcaba
MT		 553void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx);
554int ipoib_cm_dev_open(struct net_device *dev);
555void ipoib_cm_dev_stop(struct net_device *dev);
556int ipoib_cm_dev_init(struct net_device *dev);
557int ipoib_cm_add_mode_attr(struct net_device *dev);
558void ipoib_cm_dev_cleanup(struct net_device *dev);
559struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path,
560 struct ipoib_neigh *neigh);
561void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx);
2337f809 562void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb,
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MT		 563 unsigned int mtu);
564void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc);
1b524963 565void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc);
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MT		 566#else
567
568struct ipoib_cm_tx;
569
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PS		 570#define ipoib_max_conn_qp 0
571
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MT		 572static inline int ipoib_cm_admin_enabled(struct net_device *dev)
573{
574 return 0;
575}
576static inline int ipoib_cm_enabled(struct net_device *dev, struct neighbour *n)
577
578{
579 return 0;
580}
581
582static inline int ipoib_cm_up(struct ipoib_neigh *neigh)
583
584{
585 return 0;
586}
587
588static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh)
589{
590 return NULL;
591}
592
593static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx)
594{
595}
596
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PS		 597static inline int ipoib_cm_has_srq(struct net_device *dev)
598{
599 return 0;
600}
601
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PS		 602static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev)
603{
604 return 0;
605}
606
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MT		 607static inline
608void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx)
609{
610 return;
611}
612
613static inline
614int ipoib_cm_dev_open(struct net_device *dev)
615{
616 return 0;
617}
618
619static inline
620void ipoib_cm_dev_stop(struct net_device *dev)
621{
622 return;
623}
624
625static inline
626int ipoib_cm_dev_init(struct net_device *dev)
627{
628 return -ENOSYS;
629}
630
631static inline
632void ipoib_cm_dev_cleanup(struct net_device *dev)
633{
634 return;
635}
636
637static inline
638struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path,
639 struct ipoib_neigh *neigh)
640{
641 return NULL;
642}
643
644static inline
645void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx)
646{
647 return;
648}
649
650static inline
651int ipoib_cm_add_mode_attr(struct net_device *dev)
652{
653 return 0;
654}
655
2337f809 656static inline void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb,
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MT		 657 unsigned int mtu)
658{
659 dev_kfree_skb_any(skb);
660}
661
662static inline void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
663{
664}
665
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MT		 666static inline void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc)
667{
668}
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MT		 669#endif
670
1da177e4 671#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
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RD		 672void ipoib_create_debug_files(struct net_device *dev);
673void ipoib_delete_debug_files(struct net_device *dev);
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LT		 674int ipoib_register_debugfs(void);
675void ipoib_unregister_debugfs(void);
676#else
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RD		 677static inline void ipoib_create_debug_files(struct net_device *dev) { }
678static inline void ipoib_delete_debug_files(struct net_device *dev) { }
1da177e4
LT		 679static inline int ipoib_register_debugfs(void) { return 0; }
680static inline void ipoib_unregister_debugfs(void) { }
681#endif
682
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LT		 683#define ipoib_printk(level, priv, format, arg...) \
684 printk(level "%s: " format, ((struct ipoib_dev_priv *) priv)->dev->name , ## arg)
685#define ipoib_warn(priv, format, arg...) \
686 ipoib_printk(KERN_WARNING, priv, format , ## arg)
687
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SM		 688extern int ipoib_sendq_size;
689extern int ipoib_recvq_size;
1da177e4 690
c1a0b23b
MT		 691extern struct ib_sa_client ipoib_sa_client;
692
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LT		 693#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
694extern int ipoib_debug_level;
695
696#define ipoib_dbg(priv, format, arg...) \
2337f809 697 do { \
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LT		 698 if (ipoib_debug_level > 0) \
699 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
700 } while (0)
701#define ipoib_dbg_mcast(priv, format, arg...) \
2337f809 702 do { \
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LT		 703 if (mcast_debug_level > 0) \
704 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
705 } while (0)
706#else /* CONFIG_INFINIBAND_IPOIB_DEBUG */
707#define ipoib_dbg(priv, format, arg...) \
708 do { (void) (priv); } while (0)
709#define ipoib_dbg_mcast(priv, format, arg...) \
710 do { (void) (priv); } while (0)
711#endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */
712
713#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG_DATA
714#define ipoib_dbg_data(priv, format, arg...) \
2337f809 715 do { \
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LT		 716 if (data_debug_level > 0) \
717 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
718 } while (0)
719#else /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
720#define ipoib_dbg_data(priv, format, arg...) \
721 do { (void) (priv); } while (0)
722#endif /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
723
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MT		 724#define IPOIB_QPN(ha) (be32_to_cpup((__be32 *) ha) & 0xffffff)
725
1da177e4 726#endif /* _IPOIB_H */
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