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Linux 2.6.37
[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.
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
48#include <asm/atomic.h>
1da177e4 49
a4d61e84
RD		 50#include <rdma/ib_verbs.h>
51#include <rdma/ib_pack.h>
52#include <rdma/ib_sa.h>
af40da89 53#include <linux/inet_lro.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,
6046136c 94 IPOIB_FLAG_CSUM = 11,
1da177e4
LT		 95
96 IPOIB_MAX_BACKOFF_SECONDS = 16,
97
2337f809 98 IPOIB_MCAST_FLAG_FOUND = 0, /* used in set_multicast_list */
1da177e4 99 IPOIB_MCAST_FLAG_SENDONLY = 1,
2337f809 100 IPOIB_MCAST_FLAG_BUSY = 2, /* joining or already joined */
1da177e4 101 IPOIB_MCAST_FLAG_ATTACHED = 3,
f56bcd80 102
af40da89
VS		 103 IPOIB_MAX_LRO_DESCRIPTORS = 8,
104 IPOIB_LRO_MAX_AGGR = 64,
105
f56bcd80 106 MAX_SEND_CQE = 16,
f89271da 107 IPOIB_CM_COPYBREAK = 256,
1da177e4
LT		 108};
109
839fcaba
MT		 110#define IPOIB_OP_RECV (1ul << 31)
111#ifdef CONFIG_INFINIBAND_IPOIB_CM
1b524963 112#define IPOIB_OP_CM (1ul << 30)
839fcaba 113#else
1b524963 114#define IPOIB_OP_CM (0)
839fcaba
MT		 115#endif
116
1da177e4
LT		 117/* structs */
118
119struct ipoib_header {
97f52eb4
SH		 120 __be16 proto;
121 u16 reserved;
1da177e4
LT		 122};
123
124struct ipoib_pseudoheader {
125 u8 hwaddr[INFINIBAND_ALEN];
126};
127
81668838
SH		 128/* Used for all multicast joins (broadcast, IPv4 mcast and IPv6 mcast) */
129struct ipoib_mcast {
130 struct ib_sa_mcmember_rec mcmember;
131 struct ib_sa_multicast *mc;
2337f809 132 struct ipoib_ah *ah;
81668838
SH		 133
134 struct rb_node rb_node;
135 struct list_head list;
136
137 unsigned long created;
138 unsigned long backoff;
139
140 unsigned long flags;
141 unsigned char logcount;
142
143 struct list_head neigh_list;
144
145 struct sk_buff_head pkt_queue;
146
147 struct net_device *dev;
148};
1da177e4 149
1993d683
RD		 150struct ipoib_rx_buf {
151 struct sk_buff *skb;
bc7b3a36 152 u64 mapping[IPOIB_UD_RX_SG];
1993d683
RD		 153};
154
155struct ipoib_tx_buf {
1da177e4 156 struct sk_buff *skb;
7143740d 157 u64 mapping[MAX_SKB_FRAGS + 1];
1da177e4
LT		 158};
159
e112373f
EC		 160struct ipoib_cm_tx_buf {
161 struct sk_buff *skb;
162 u64 mapping;
163};
164
839fcaba
MT		 165struct ib_cm_id;
166
167struct ipoib_cm_data {
168 __be32 qpn; /* High byte MUST be ignored on receive */
169 __be32 mtu;
170};
171
518b1646
MT		 172/*
173 * Quoting 10.3.1 Queue Pair and EE Context States:
174 *
175 * Note, for QPs that are associated with an SRQ, the Consumer should take the
176 * QP through the Error State before invoking a Destroy QP or a Modify QP to the
177 * Reset State. The Consumer may invoke the Destroy QP without first performing
178 * a Modify QP to the Error State and waiting for the Affiliated Asynchronous
179 * Last WQE Reached Event. However, if the Consumer does not wait for the
180 * Affiliated Asynchronous Last WQE Reached Event, then WQE and Data Segment
181 * leakage may occur. Therefore, it is good programming practice to tear down a
182 * QP that is associated with an SRQ by using the following process:
183 *
184 * - Put the QP in the Error State
185 * - Wait for the Affiliated Asynchronous Last WQE Reached Event;
186 * - either:
187 * drain the CQ by invoking the Poll CQ verb and either wait for CQ
188 * to be empty or the number of Poll CQ operations has exceeded
189 * CQ capacity size;
190 * - or
191 * post another WR that completes on the same CQ and wait for this
192 * WR to return as a WC;
193 * - and then invoke a Destroy QP or Reset QP.
194 *
195 * We use the second option and wait for a completion on the
ec56dc0b 196 * same CQ before destroying QPs attached to our SRQ.
518b1646
MT		 197 */
198
199enum ipoib_cm_state {
200 IPOIB_CM_RX_LIVE,
201 IPOIB_CM_RX_ERROR, /* Ignored by stale task */
202 IPOIB_CM_RX_FLUSH /* Last WQE Reached event observed */
203};
204
839fcaba 205struct ipoib_cm_rx {
2337f809
RD		 206 struct ib_cm_id *id;
207 struct ib_qp *qp;
68e995a2 208 struct ipoib_cm_rx_buf *rx_ring;
2337f809
RD		 209 struct list_head list;
210 struct net_device *dev;
211 unsigned long jiffies;
212 enum ipoib_cm_state state;
68e995a2 213 int recv_count;
839fcaba
MT		 214};
215
216struct ipoib_cm_tx {
2337f809
RD		 217 struct ib_cm_id *id;
218 struct ib_qp *qp;
839fcaba
MT		 219 struct list_head list;
220 struct net_device *dev;
221 struct ipoib_neigh *neigh;
222 struct ipoib_path *path;
e112373f 223 struct ipoib_cm_tx_buf *tx_ring;
2337f809
RD		 224 unsigned tx_head;
225 unsigned tx_tail;
226 unsigned long flags;
227 u32 mtu;
839fcaba
MT		 228};
229
230struct ipoib_cm_rx_buf {
231 struct sk_buff *skb;
232 u64 mapping[IPOIB_CM_RX_SG];
233};
234
235struct ipoib_cm_dev_priv {
2337f809 236 struct ib_srq *srq;
839fcaba 237 struct ipoib_cm_rx_buf *srq_ring;
2337f809
RD		 238 struct ib_cm_id *id;
239 struct list_head passive_ids; /* state: LIVE */
240 struct list_head rx_error_list; /* state: ERROR */
241 struct list_head rx_flush_list; /* state: FLUSH, drain not started */
242 struct list_head rx_drain_list; /* state: FLUSH, drain started */
243 struct list_head rx_reap_list; /* state: FLUSH, drain done */
839fcaba
MT		 244 struct work_struct start_task;
245 struct work_struct reap_task;
246 struct work_struct skb_task;
518b1646 247 struct work_struct rx_reap_task;
839fcaba
MT		 248 struct delayed_work stale_task;
249 struct sk_buff_head skb_queue;
2337f809
RD		 250 struct list_head start_list;
251 struct list_head reap_list;
252 struct ib_wc ibwc[IPOIB_NUM_WC];
253 struct ib_sge rx_sge[IPOIB_CM_RX_SG];
839fcaba 254 struct ib_recv_wr rx_wr;
68e995a2 255 int nonsrq_conn_qp;
586a6934
PS		 256 int max_cm_mtu;
257 int num_frags;
839fcaba
MT		 258};
259
28d52b3c
EC		 260struct ipoib_ethtool_st {
261 u16 coalesce_usecs;
262 u16 max_coalesced_frames;
263};
264
af40da89
VS		 265struct ipoib_lro {
266 struct net_lro_mgr lro_mgr;
267 struct net_lro_desc lro_desc[IPOIB_MAX_LRO_DESCRIPTORS];
268};
269
1da177e4 270/*
943c246e
RD		 271 * Device private locking: network stack tx_lock protects members used
272 * in TX fast path, lock protects everything else. lock nests inside
273 * of tx_lock (ie tx_lock must be acquired first if needed).
1da177e4
LT		 274 */
275struct ipoib_dev_priv {
276 spinlock_t lock;
277
278 struct net_device *dev;
279
bea3348e
SH		 280 struct napi_struct napi;
281
1da177e4
LT		 282 unsigned long flags;
283
95ed644f 284 struct mutex vlan_mutex;
1da177e4
LT		 285
286 struct rb_root path_tree;
287 struct list_head path_list;
288
289 struct ipoib_mcast *broadcast;
290 struct list_head multicast_list;
291 struct rb_root multicast_tree;
292
26bbf13c 293 struct delayed_work pkey_poll_task;
c4028958 294 struct delayed_work mcast_task;
e8224e4b 295 struct work_struct carrier_on_task;
ee1e2c82
MS		 296 struct work_struct flush_light;
297 struct work_struct flush_normal;
298 struct work_struct flush_heavy;
1da177e4 299 struct work_struct restart_task;
c4028958 300 struct delayed_work ah_reap_task;
1da177e4
LT		 301
302 struct ib_device *ca;
2337f809
RD		 303 u8 port;
304 u16 pkey;
305 u16 pkey_index;
306 struct ib_pd *pd;
307 struct ib_mr *mr;
f56bcd80
EC		 308 struct ib_cq *recv_cq;
309 struct ib_cq *send_cq;
2337f809
RD		 310 struct ib_qp *qp;
311 u32 qkey;
1da177e4
LT		 312
313 union ib_gid local_gid;
2337f809 314 u16 local_lid;
1da177e4
LT		 315
316 unsigned int admin_mtu;
317 unsigned int mcast_mtu;
bc7b3a36 318 unsigned int max_ib_mtu;
1da177e4 319
1993d683 320 struct ipoib_rx_buf *rx_ring;
1da177e4 321
1993d683 322 struct ipoib_tx_buf *tx_ring;
2337f809
RD		 323 unsigned tx_head;
324 unsigned tx_tail;
7143740d 325 struct ib_sge tx_sge[MAX_SKB_FRAGS + 1];
1993d683 326 struct ib_send_wr tx_wr;
2337f809 327 unsigned tx_outstanding;
f56bcd80 328 struct ib_wc send_wc[MAX_SEND_CQE];
1da177e4 329
bc7b3a36
SM		 330 struct ib_recv_wr rx_wr;
331 struct ib_sge rx_sge[IPOIB_UD_RX_SG];
332
1da177e4
LT		 333 struct ib_wc ibwc[IPOIB_NUM_WC];
334
335 struct list_head dead_ahs;
336
337 struct ib_event_handler event_handler;
338
1da177e4
LT		 339 struct net_device *parent;
340 struct list_head child_intfs;
341 struct list_head list;
342
839fcaba
MT		 343#ifdef CONFIG_INFINIBAND_IPOIB_CM
344 struct ipoib_cm_dev_priv cm;
345#endif
346
1da177e4
LT		 347#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
348 struct list_head fs_list;
349 struct dentry *mcg_dentry;
1732b0ef 350 struct dentry *path_dentry;
1da177e4 351#endif
40ca1988 352 int hca_caps;
28d52b3c 353 struct ipoib_ethtool_st ethtool;
57ce41d1 354 struct timer_list poll_timer;
af40da89
VS		 355
356 struct ipoib_lro lro;
1da177e4
LT		 357};
358
359struct ipoib_ah {
360 struct net_device *dev;
2337f809 361 struct ib_ah *ah;
1da177e4 362 struct list_head list;
2337f809
RD		 363 struct kref ref;
364 unsigned last_send;
1da177e4
LT		 365};
366
367struct ipoib_path {
368 struct net_device *dev;
369 struct ib_sa_path_rec pathrec;
370 struct ipoib_ah *ah;
371 struct sk_buff_head queue;
372
373 struct list_head neigh_list;
374
2337f809 375 int query_id;
1da177e4
LT		 376 struct ib_sa_query *query;
377 struct completion done;
378
2337f809 379 struct rb_node rb_node;
1da177e4 380 struct list_head list;
ee1e2c82 381 int valid;
1da177e4
LT		 382};
383
384struct ipoib_neigh {
385 struct ipoib_ah *ah;
839fcaba
MT		 386#ifdef CONFIG_INFINIBAND_IPOIB_CM
387 struct ipoib_cm_tx *cm;
388#endif
2337f809 389 union ib_gid dgid;
1da177e4
LT		 390 struct sk_buff_head queue;
391
392 struct neighbour *neighbour;
732a2170 393 struct net_device *dev;
1da177e4
LT		 394
395 struct list_head list;
396};
397
bc7b3a36
SM		 398#define IPOIB_UD_MTU(ib_mtu) (ib_mtu - IPOIB_ENCAP_LEN)
399#define IPOIB_UD_BUF_SIZE(ib_mtu) (ib_mtu + IB_GRH_BYTES)
400
401static inline int ipoib_ud_need_sg(unsigned int ib_mtu)
402{
403 return IPOIB_UD_BUF_SIZE(ib_mtu) > PAGE_SIZE;
404}
405
44af79f9
MT		 406/*
407 * We stash a pointer to our private neighbour information after our
408 * hardware address in neigh->ha. The ALIGN() expression here makes
409 * sure that this pointer is stored aligned so that an unaligned
410 * load is not needed to dereference it.
411 */
1da177e4
LT		 412static inline struct ipoib_neigh **to_ipoib_neigh(struct neighbour *neigh)
413{
44af79f9
MT		 414 return (void*) neigh + ALIGN(offsetof(struct neighbour, ha) +
415 INFINIBAND_ALEN, sizeof(void *));
1da177e4
LT		 416}
417
732a2170
MS		 418struct ipoib_neigh *ipoib_neigh_alloc(struct neighbour *neigh,
419 struct net_device *dev);
2745b5b7 420void ipoib_neigh_free(struct net_device *dev, struct ipoib_neigh *neigh);
d2e0655e 421
1da177e4
LT		 422extern struct workqueue_struct *ipoib_workqueue;
423
424/* functions */
425
bea3348e 426int ipoib_poll(struct napi_struct *napi, int budget);
1da177e4 427void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr);
57ce41d1 428void ipoib_send_comp_handler(struct ib_cq *cq, void *dev_ptr);
1da177e4
LT		 429
430struct ipoib_ah *ipoib_create_ah(struct net_device *dev,
431 struct ib_pd *pd, struct ib_ah_attr *attr);
432void ipoib_free_ah(struct kref *kref);
433static inline void ipoib_put_ah(struct ipoib_ah *ah)
434{
435 kref_put(&ah->ref, ipoib_free_ah);
436}
437
8ae5a8a2 438int ipoib_open(struct net_device *dev);
1da177e4 439int ipoib_add_pkey_attr(struct net_device *dev);
335a64a5 440int ipoib_add_umcast_attr(struct net_device *dev);
1da177e4
LT		 441
442void ipoib_send(struct net_device *dev, struct sk_buff *skb,
443 struct ipoib_ah *address, u32 qpn);
c4028958 444void ipoib_reap_ah(struct work_struct *work);
1da177e4 445
ee1e2c82 446void ipoib_mark_paths_invalid(struct net_device *dev);
1da177e4
LT		 447void ipoib_flush_paths(struct net_device *dev);
448struct ipoib_dev_priv *ipoib_intf_alloc(const char *format);
449
450int ipoib_ib_dev_init(struct net_device *dev, struct ib_device *ca, int port);
ee1e2c82
MS		 451void ipoib_ib_dev_flush_light(struct work_struct *work);
452void ipoib_ib_dev_flush_normal(struct work_struct *work);
453void ipoib_ib_dev_flush_heavy(struct work_struct *work);
26bbf13c 454void ipoib_pkey_event(struct work_struct *work);
1da177e4
LT		 455void ipoib_ib_dev_cleanup(struct net_device *dev);
456
457int ipoib_ib_dev_open(struct net_device *dev);
458int ipoib_ib_dev_up(struct net_device *dev);
0b3ea082 459int ipoib_ib_dev_down(struct net_device *dev, int flush);
26bbf13c 460int ipoib_ib_dev_stop(struct net_device *dev, int flush);
1da177e4
LT		 461
462int ipoib_dev_init(struct net_device *dev, struct ib_device *ca, int port);
463void ipoib_dev_cleanup(struct net_device *dev);
464
c4028958 465void ipoib_mcast_join_task(struct work_struct *work);
e8224e4b 466void ipoib_mcast_carrier_on_task(struct work_struct *work);
37c22a77 467void ipoib_mcast_send(struct net_device *dev, void *mgid, struct sk_buff *skb);
1da177e4 468
c4028958 469void ipoib_mcast_restart_task(struct work_struct *work);
1da177e4 470int ipoib_mcast_start_thread(struct net_device *dev);
8d2cae06 471int ipoib_mcast_stop_thread(struct net_device *dev, int flush);
1da177e4
LT		 472
473void ipoib_mcast_dev_down(struct net_device *dev);
474void ipoib_mcast_dev_flush(struct net_device *dev);
475
8ae5a8a2 476#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
1da177e4 477struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct net_device *dev);
1da177e4
LT		 478int ipoib_mcast_iter_next(struct ipoib_mcast_iter *iter);
479void ipoib_mcast_iter_read(struct ipoib_mcast_iter *iter,
480 union ib_gid *gid,
481 unsigned long *created,
482 unsigned int *queuelen,
483 unsigned int *complete,
484 unsigned int *send_only);
1732b0ef
RD		 485
486struct ipoib_path_iter *ipoib_path_iter_init(struct net_device *dev);
487int ipoib_path_iter_next(struct ipoib_path_iter *iter);
488void ipoib_path_iter_read(struct ipoib_path_iter *iter,
489 struct ipoib_path *path);
8ae5a8a2 490#endif
1da177e4
LT		 491
492int ipoib_mcast_attach(struct net_device *dev, u16 mlid,
d0de1362 493 union ib_gid *mgid, int set_qkey);
1da177e4 494
5b6810e0 495int ipoib_init_qp(struct net_device *dev);
1da177e4
LT		 496int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca);
497void ipoib_transport_dev_cleanup(struct net_device *dev);
498
499void ipoib_event(struct ib_event_handler *handler,
500 struct ib_event *record);
501
502int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey);
503int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey);
504
c4028958 505void ipoib_pkey_poll(struct work_struct *work);
1da177e4 506int ipoib_pkey_dev_delay_open(struct net_device *dev);
2dfbfc37 507void ipoib_drain_cq(struct net_device *dev);
1da177e4 508
82c24c18 509void ipoib_set_ethtool_ops(struct net_device *dev);
83bb63f6 510int ipoib_set_dev_features(struct ipoib_dev_priv *priv, struct ib_device *hca);
82c24c18 511
839fcaba
MT		 512#ifdef CONFIG_INFINIBAND_IPOIB_CM
513
2337f809
RD		 514#define IPOIB_FLAGS_RC 0x80
515#define IPOIB_FLAGS_UC 0x40
839fcaba
MT		 516
517/* We don't support UC connections at the moment */
518#define IPOIB_CM_SUPPORTED(ha) (ha[0] & (IPOIB_FLAGS_RC))
519
68e995a2
PS		 520extern int ipoib_max_conn_qp;
521
839fcaba
MT		 522static inline int ipoib_cm_admin_enabled(struct net_device *dev)
523{
524 struct ipoib_dev_priv *priv = netdev_priv(dev);
525 return IPOIB_CM_SUPPORTED(dev->dev_addr) &&
526 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
527}
528
529static inline int ipoib_cm_enabled(struct net_device *dev, struct neighbour *n)
530{
531 struct ipoib_dev_priv *priv = netdev_priv(dev);
532 return IPOIB_CM_SUPPORTED(n->ha) &&
533 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
534}
535
536static inline int ipoib_cm_up(struct ipoib_neigh *neigh)
537
538{
539 return test_bit(IPOIB_FLAG_OPER_UP, &neigh->cm->flags);
540}
541
542static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh)
543{
544 return neigh->cm;
545}
546
547static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx)
548{
549 neigh->cm = tx;
550}
551
68e995a2
PS		 552static inline int ipoib_cm_has_srq(struct net_device *dev)
553{
554 struct ipoib_dev_priv *priv = netdev_priv(dev);
555 return !!priv->cm.srq;
556}
557
586a6934
PS		 558static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev)
559{
560 struct ipoib_dev_priv *priv = netdev_priv(dev);
561 return priv->cm.max_cm_mtu;
562}
563
839fcaba
MT		 564void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx);
565int ipoib_cm_dev_open(struct net_device *dev);
566void ipoib_cm_dev_stop(struct net_device *dev);
567int ipoib_cm_dev_init(struct net_device *dev);
568int ipoib_cm_add_mode_attr(struct net_device *dev);
569void ipoib_cm_dev_cleanup(struct net_device *dev);
570struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path,
571 struct ipoib_neigh *neigh);
572void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx);
2337f809 573void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb,
839fcaba
MT		 574 unsigned int mtu);
575void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc);
1b524963 576void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc);
839fcaba
MT		 577#else
578
579struct ipoib_cm_tx;
580
68e995a2
PS		 581#define ipoib_max_conn_qp 0
582
839fcaba
MT		 583static inline int ipoib_cm_admin_enabled(struct net_device *dev)
584{
585 return 0;
586}
587static inline int ipoib_cm_enabled(struct net_device *dev, struct neighbour *n)
588
589{
590 return 0;
591}
592
593static inline int ipoib_cm_up(struct ipoib_neigh *neigh)
594
595{
596 return 0;
597}
598
599static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh)
600{
601 return NULL;
602}
603
604static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx)
605{
606}
607
68e995a2
PS		 608static inline int ipoib_cm_has_srq(struct net_device *dev)
609{
610 return 0;
611}
612
586a6934
PS		 613static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev)
614{
615 return 0;
616}
617
839fcaba
MT		 618static inline
619void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx)
620{
621 return;
622}
623
624static inline
625int ipoib_cm_dev_open(struct net_device *dev)
626{
627 return 0;
628}
629
630static inline
631void ipoib_cm_dev_stop(struct net_device *dev)
632{
633 return;
634}
635
636static inline
637int ipoib_cm_dev_init(struct net_device *dev)
638{
639 return -ENOSYS;
640}
641
642static inline
643void ipoib_cm_dev_cleanup(struct net_device *dev)
644{
645 return;
646}
647
648static inline
649struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path,
650 struct ipoib_neigh *neigh)
651{
652 return NULL;
653}
654
655static inline
656void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx)
657{
658 return;
659}
660
661static inline
662int ipoib_cm_add_mode_attr(struct net_device *dev)
663{
664 return 0;
665}
666
2337f809 667static inline void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb,
839fcaba
MT		 668 unsigned int mtu)
669{
670 dev_kfree_skb_any(skb);
671}
672
673static inline void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
674{
675}
676
1b524963
MT		 677static inline void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc)
678{
679}
839fcaba
MT		 680#endif
681
1da177e4 682#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
1732b0ef
RD		 683void ipoib_create_debug_files(struct net_device *dev);
684void ipoib_delete_debug_files(struct net_device *dev);
1da177e4
LT		 685int ipoib_register_debugfs(void);
686void ipoib_unregister_debugfs(void);
687#else
1732b0ef
RD		 688static inline void ipoib_create_debug_files(struct net_device *dev) { }
689static inline void ipoib_delete_debug_files(struct net_device *dev) { }
1da177e4
LT		 690static inline int ipoib_register_debugfs(void) { return 0; }
691static inline void ipoib_unregister_debugfs(void) { }
692#endif
693
1da177e4
LT		 694#define ipoib_printk(level, priv, format, arg...) \
695 printk(level "%s: " format, ((struct ipoib_dev_priv *) priv)->dev->name , ## arg)
696#define ipoib_warn(priv, format, arg...) \
697 ipoib_printk(KERN_WARNING, priv, format , ## arg)
698
0f485251
SM		 699extern int ipoib_sendq_size;
700extern int ipoib_recvq_size;
1da177e4 701
c1a0b23b
MT		 702extern struct ib_sa_client ipoib_sa_client;
703
1da177e4
LT		 704#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
705extern int ipoib_debug_level;
706
707#define ipoib_dbg(priv, format, arg...) \
2337f809 708 do { \
1da177e4
LT		 709 if (ipoib_debug_level > 0) \
710 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
711 } while (0)
712#define ipoib_dbg_mcast(priv, format, arg...) \
2337f809 713 do { \
1da177e4
LT		 714 if (mcast_debug_level > 0) \
715 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
716 } while (0)
717#else /* CONFIG_INFINIBAND_IPOIB_DEBUG */
718#define ipoib_dbg(priv, format, arg...) \
719 do { (void) (priv); } while (0)
720#define ipoib_dbg_mcast(priv, format, arg...) \
721 do { (void) (priv); } while (0)
722#endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */
723
724#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG_DATA
725#define ipoib_dbg_data(priv, format, arg...) \
2337f809 726 do { \
1da177e4
LT		 727 if (data_debug_level > 0) \
728 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
729 } while (0)
730#else /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
731#define ipoib_dbg_data(priv, format, arg...) \
732 do { (void) (priv); } while (0)
733#endif /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
734
839fcaba
MT		 735#define IPOIB_QPN(ha) (be32_to_cpup((__be32 *) ha) & 0xffffff)
736
1da177e4 737#endif /* _IPOIB_H */
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