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IB/mlx4: Fix off-by-one errors in calls to mlx4_ib_free_cq_buf()
[deliverable/linux.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 59 IPOIB_ENCAP_LEN = 4,
1da177e4 60
bc7b3a36
SM		 61 IPOIB_UD_HEAD_SIZE = IB_GRH_BYTES + IPOIB_ENCAP_LEN,
62 IPOIB_UD_RX_SG = 2, /* max buffer needed for 4K mtu */
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,
6046136c 90 IPOIB_FLAG_CSUM = 11,
1da177e4
LT		 91
92 IPOIB_MAX_BACKOFF_SECONDS = 16,
93
2337f809 94 IPOIB_MCAST_FLAG_FOUND = 0, /* used in set_multicast_list */
1da177e4 95 IPOIB_MCAST_FLAG_SENDONLY = 1,
2337f809 96 IPOIB_MCAST_FLAG_BUSY = 2, /* joining or already joined */
1da177e4 97 IPOIB_MCAST_FLAG_ATTACHED = 3,
f56bcd80
EC		 98
99 MAX_SEND_CQE = 16,
1da177e4
LT		 100};
101
839fcaba
MT		 102#define IPOIB_OP_RECV (1ul << 31)
103#ifdef CONFIG_INFINIBAND_IPOIB_CM
1b524963 104#define IPOIB_OP_CM (1ul << 30)
839fcaba 105#else
1b524963 106#define IPOIB_OP_CM (0)
839fcaba
MT		 107#endif
108
1da177e4
LT		 109/* structs */
110
111struct ipoib_header {
97f52eb4
SH		 112 __be16 proto;
113 u16 reserved;
1da177e4
LT		 114};
115
116struct ipoib_pseudoheader {
117 u8 hwaddr[INFINIBAND_ALEN];
118};
119
81668838
SH		 120/* Used for all multicast joins (broadcast, IPv4 mcast and IPv6 mcast) */
121struct ipoib_mcast {
122 struct ib_sa_mcmember_rec mcmember;
123 struct ib_sa_multicast *mc;
2337f809 124 struct ipoib_ah *ah;
81668838
SH		 125
126 struct rb_node rb_node;
127 struct list_head list;
128
129 unsigned long created;
130 unsigned long backoff;
131
132 unsigned long flags;
133 unsigned char logcount;
134
135 struct list_head neigh_list;
136
137 struct sk_buff_head pkt_queue;
138
139 struct net_device *dev;
140};
1da177e4 141
1993d683
RD		 142struct ipoib_rx_buf {
143 struct sk_buff *skb;
bc7b3a36 144 u64 mapping[IPOIB_UD_RX_SG];
1993d683
RD		 145};
146
147struct ipoib_tx_buf {
1da177e4 148 struct sk_buff *skb;
7143740d 149 u64 mapping[MAX_SKB_FRAGS + 1];
1da177e4
LT		 150};
151
839fcaba
MT		 152struct ib_cm_id;
153
154struct ipoib_cm_data {
155 __be32 qpn; /* High byte MUST be ignored on receive */
156 __be32 mtu;
157};
158
518b1646
MT		 159/*
160 * Quoting 10.3.1 Queue Pair and EE Context States:
161 *
162 * Note, for QPs that are associated with an SRQ, the Consumer should take the
163 * QP through the Error State before invoking a Destroy QP or a Modify QP to the
164 * Reset State. The Consumer may invoke the Destroy QP without first performing
165 * a Modify QP to the Error State and waiting for the Affiliated Asynchronous
166 * Last WQE Reached Event. However, if the Consumer does not wait for the
167 * Affiliated Asynchronous Last WQE Reached Event, then WQE and Data Segment
168 * leakage may occur. Therefore, it is good programming practice to tear down a
169 * QP that is associated with an SRQ by using the following process:
170 *
171 * - Put the QP in the Error State
172 * - Wait for the Affiliated Asynchronous Last WQE Reached Event;
173 * - either:
174 * drain the CQ by invoking the Poll CQ verb and either wait for CQ
175 * to be empty or the number of Poll CQ operations has exceeded
176 * CQ capacity size;
177 * - or
178 * post another WR that completes on the same CQ and wait for this
179 * WR to return as a WC;
180 * - and then invoke a Destroy QP or Reset QP.
181 *
182 * We use the second option and wait for a completion on the
ec56dc0b 183 * same CQ before destroying QPs attached to our SRQ.
518b1646
MT		 184 */
185
186enum ipoib_cm_state {
187 IPOIB_CM_RX_LIVE,
188 IPOIB_CM_RX_ERROR, /* Ignored by stale task */
189 IPOIB_CM_RX_FLUSH /* Last WQE Reached event observed */
190};
191
839fcaba 192struct ipoib_cm_rx {
2337f809
RD		 193 struct ib_cm_id *id;
194 struct ib_qp *qp;
68e995a2 195 struct ipoib_cm_rx_buf *rx_ring;
2337f809
RD		 196 struct list_head list;
197 struct net_device *dev;
198 unsigned long jiffies;
199 enum ipoib_cm_state state;
68e995a2 200 int recv_count;
839fcaba
MT		 201};
202
203struct ipoib_cm_tx {
2337f809
RD		 204 struct ib_cm_id *id;
205 struct ib_qp *qp;
839fcaba
MT		 206 struct list_head list;
207 struct net_device *dev;
208 struct ipoib_neigh *neigh;
209 struct ipoib_path *path;
210 struct ipoib_tx_buf *tx_ring;
2337f809
RD		 211 unsigned tx_head;
212 unsigned tx_tail;
213 unsigned long flags;
214 u32 mtu;
839fcaba
MT		 215};
216
217struct ipoib_cm_rx_buf {
218 struct sk_buff *skb;
219 u64 mapping[IPOIB_CM_RX_SG];
220};
221
222struct ipoib_cm_dev_priv {
2337f809 223 struct ib_srq *srq;
839fcaba 224 struct ipoib_cm_rx_buf *srq_ring;
2337f809
RD		 225 struct ib_cm_id *id;
226 struct list_head passive_ids; /* state: LIVE */
227 struct list_head rx_error_list; /* state: ERROR */
228 struct list_head rx_flush_list; /* state: FLUSH, drain not started */
229 struct list_head rx_drain_list; /* state: FLUSH, drain started */
230 struct list_head rx_reap_list; /* state: FLUSH, drain done */
839fcaba
MT		 231 struct work_struct start_task;
232 struct work_struct reap_task;
233 struct work_struct skb_task;
518b1646 234 struct work_struct rx_reap_task;
839fcaba
MT		 235 struct delayed_work stale_task;
236 struct sk_buff_head skb_queue;
2337f809
RD		 237 struct list_head start_list;
238 struct list_head reap_list;
239 struct ib_wc ibwc[IPOIB_NUM_WC];
240 struct ib_sge rx_sge[IPOIB_CM_RX_SG];
839fcaba 241 struct ib_recv_wr rx_wr;
68e995a2 242 int nonsrq_conn_qp;
586a6934
PS		 243 int max_cm_mtu;
244 int num_frags;
839fcaba
MT		 245};
246
28d52b3c
EC		 247struct ipoib_ethtool_st {
248 u16 coalesce_usecs;
249 u16 max_coalesced_frames;
250};
251
1da177e4
LT		 252/*
253 * Device private locking: tx_lock protects members used in TX fast
254 * path (and we use LLTX so upper layers don't do extra locking).
255 * lock protects everything else. lock nests inside of tx_lock (ie
256 * tx_lock must be acquired first if needed).
257 */
258struct ipoib_dev_priv {
259 spinlock_t lock;
260
261 struct net_device *dev;
262
bea3348e
SH		 263 struct napi_struct napi;
264
1da177e4
LT		 265 unsigned long flags;
266
95ed644f
IM		 267 struct mutex mcast_mutex;
268 struct mutex vlan_mutex;
1da177e4
LT		 269
270 struct rb_root path_tree;
271 struct list_head path_list;
272
273 struct ipoib_mcast *broadcast;
274 struct list_head multicast_list;
275 struct rb_root multicast_tree;
276
26bbf13c 277 struct delayed_work pkey_poll_task;
c4028958 278 struct delayed_work mcast_task;
1da177e4
LT		 279 struct work_struct flush_task;
280 struct work_struct restart_task;
c4028958 281 struct delayed_work ah_reap_task;
26bbf13c 282 struct work_struct pkey_event_task;
1da177e4
LT		 283
284 struct ib_device *ca;
2337f809
RD		 285 u8 port;
286 u16 pkey;
287 u16 pkey_index;
288 struct ib_pd *pd;
289 struct ib_mr *mr;
f56bcd80
EC		 290 struct ib_cq *recv_cq;
291 struct ib_cq *send_cq;
2337f809
RD		 292 struct ib_qp *qp;
293 u32 qkey;
1da177e4
LT		 294
295 union ib_gid local_gid;
2337f809 296 u16 local_lid;
1da177e4
LT		 297
298 unsigned int admin_mtu;
299 unsigned int mcast_mtu;
bc7b3a36 300 unsigned int max_ib_mtu;
1da177e4 301
1993d683 302 struct ipoib_rx_buf *rx_ring;
1da177e4 303
2337f809 304 spinlock_t tx_lock;
1993d683 305 struct ipoib_tx_buf *tx_ring;
2337f809
RD		 306 unsigned tx_head;
307 unsigned tx_tail;
7143740d 308 struct ib_sge tx_sge[MAX_SKB_FRAGS + 1];
1993d683 309 struct ib_send_wr tx_wr;
2337f809 310 unsigned tx_outstanding;
f56bcd80 311 struct ib_wc send_wc[MAX_SEND_CQE];
1da177e4 312
bc7b3a36
SM		 313 struct ib_recv_wr rx_wr;
314 struct ib_sge rx_sge[IPOIB_UD_RX_SG];
315
1da177e4
LT		 316 struct ib_wc ibwc[IPOIB_NUM_WC];
317
318 struct list_head dead_ahs;
319
320 struct ib_event_handler event_handler;
321
1da177e4
LT		 322 struct net_device *parent;
323 struct list_head child_intfs;
324 struct list_head list;
325
839fcaba
MT		 326#ifdef CONFIG_INFINIBAND_IPOIB_CM
327 struct ipoib_cm_dev_priv cm;
328#endif
329
1da177e4
LT		 330#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
331 struct list_head fs_list;
332 struct dentry *mcg_dentry;
1732b0ef 333 struct dentry *path_dentry;
1da177e4 334#endif
40ca1988 335 int hca_caps;
28d52b3c 336 struct ipoib_ethtool_st ethtool;
1da177e4
LT		 337};
338
339struct ipoib_ah {
340 struct net_device *dev;
2337f809 341 struct ib_ah *ah;
1da177e4 342 struct list_head list;
2337f809
RD		 343 struct kref ref;
344 unsigned last_send;
1da177e4
LT		 345};
346
347struct ipoib_path {
348 struct net_device *dev;
349 struct ib_sa_path_rec pathrec;
350 struct ipoib_ah *ah;
351 struct sk_buff_head queue;
352
353 struct list_head neigh_list;
354
2337f809 355 int query_id;
1da177e4
LT		 356 struct ib_sa_query *query;
357 struct completion done;
358
2337f809 359 struct rb_node rb_node;
1da177e4
LT		 360 struct list_head list;
361};
362
363struct ipoib_neigh {
364 struct ipoib_ah *ah;
839fcaba
MT		 365#ifdef CONFIG_INFINIBAND_IPOIB_CM
366 struct ipoib_cm_tx *cm;
367#endif
2337f809 368 union ib_gid dgid;
1da177e4
LT		 369 struct sk_buff_head queue;
370
371 struct neighbour *neighbour;
732a2170 372 struct net_device *dev;
1da177e4
LT		 373
374 struct list_head list;
375};
376
bc7b3a36
SM		 377#define IPOIB_UD_MTU(ib_mtu) (ib_mtu - IPOIB_ENCAP_LEN)
378#define IPOIB_UD_BUF_SIZE(ib_mtu) (ib_mtu + IB_GRH_BYTES)
379
380static inline int ipoib_ud_need_sg(unsigned int ib_mtu)
381{
382 return IPOIB_UD_BUF_SIZE(ib_mtu) > PAGE_SIZE;
383}
384
44af79f9
MT		 385/*
386 * We stash a pointer to our private neighbour information after our
387 * hardware address in neigh->ha. The ALIGN() expression here makes
388 * sure that this pointer is stored aligned so that an unaligned
389 * load is not needed to dereference it.
390 */
1da177e4
LT		 391static inline struct ipoib_neigh **to_ipoib_neigh(struct neighbour *neigh)
392{
44af79f9
MT		 393 return (void*) neigh + ALIGN(offsetof(struct neighbour, ha) +
394 INFINIBAND_ALEN, sizeof(void *));
1da177e4
LT		 395}
396
732a2170
MS		 397struct ipoib_neigh *ipoib_neigh_alloc(struct neighbour *neigh,
398 struct net_device *dev);
2745b5b7 399void ipoib_neigh_free(struct net_device *dev, struct ipoib_neigh *neigh);
d2e0655e 400
1da177e4
LT		 401extern struct workqueue_struct *ipoib_workqueue;
402
403/* functions */
404
bea3348e 405int ipoib_poll(struct napi_struct *napi, int budget);
1da177e4
LT		 406void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr);
407
408struct ipoib_ah *ipoib_create_ah(struct net_device *dev,
409 struct ib_pd *pd, struct ib_ah_attr *attr);
410void ipoib_free_ah(struct kref *kref);
411static inline void ipoib_put_ah(struct ipoib_ah *ah)
412{
413 kref_put(&ah->ref, ipoib_free_ah);
414}
415
8ae5a8a2 416int ipoib_open(struct net_device *dev);
1da177e4 417int ipoib_add_pkey_attr(struct net_device *dev);
335a64a5 418int ipoib_add_umcast_attr(struct net_device *dev);
1da177e4
LT		 419
420void ipoib_send(struct net_device *dev, struct sk_buff *skb,
421 struct ipoib_ah *address, u32 qpn);
c4028958 422void ipoib_reap_ah(struct work_struct *work);
1da177e4
LT		 423
424void ipoib_flush_paths(struct net_device *dev);
425struct ipoib_dev_priv *ipoib_intf_alloc(const char *format);
426
427int ipoib_ib_dev_init(struct net_device *dev, struct ib_device *ca, int port);
c4028958 428void ipoib_ib_dev_flush(struct work_struct *work);
26bbf13c 429void ipoib_pkey_event(struct work_struct *work);
1da177e4
LT		 430void ipoib_ib_dev_cleanup(struct net_device *dev);
431
432int ipoib_ib_dev_open(struct net_device *dev);
433int ipoib_ib_dev_up(struct net_device *dev);
0b3ea082 434int ipoib_ib_dev_down(struct net_device *dev, int flush);
26bbf13c 435int ipoib_ib_dev_stop(struct net_device *dev, int flush);
1da177e4
LT		 436
437int ipoib_dev_init(struct net_device *dev, struct ib_device *ca, int port);
438void ipoib_dev_cleanup(struct net_device *dev);
439
c4028958 440void ipoib_mcast_join_task(struct work_struct *work);
37c22a77 441void ipoib_mcast_send(struct net_device *dev, void *mgid, struct sk_buff *skb);
1da177e4 442
c4028958 443void ipoib_mcast_restart_task(struct work_struct *work);
1da177e4 444int ipoib_mcast_start_thread(struct net_device *dev);
8d2cae06 445int ipoib_mcast_stop_thread(struct net_device *dev, int flush);
1da177e4
LT		 446
447void ipoib_mcast_dev_down(struct net_device *dev);
448void ipoib_mcast_dev_flush(struct net_device *dev);
449
8ae5a8a2 450#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
1da177e4 451struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct net_device *dev);
1da177e4
LT		 452int ipoib_mcast_iter_next(struct ipoib_mcast_iter *iter);
453void ipoib_mcast_iter_read(struct ipoib_mcast_iter *iter,
454 union ib_gid *gid,
455 unsigned long *created,
456 unsigned int *queuelen,
457 unsigned int *complete,
458 unsigned int *send_only);
1732b0ef
RD		 459
460struct ipoib_path_iter *ipoib_path_iter_init(struct net_device *dev);
461int ipoib_path_iter_next(struct ipoib_path_iter *iter);
462void ipoib_path_iter_read(struct ipoib_path_iter *iter,
463 struct ipoib_path *path);
8ae5a8a2 464#endif
1da177e4
LT		 465
466int ipoib_mcast_attach(struct net_device *dev, u16 mlid,
467 union ib_gid *mgid);
468int ipoib_mcast_detach(struct net_device *dev, u16 mlid,
469 union ib_gid *mgid);
470
5b6810e0 471int ipoib_init_qp(struct net_device *dev);
1da177e4
LT		 472int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca);
473void ipoib_transport_dev_cleanup(struct net_device *dev);
474
475void ipoib_event(struct ib_event_handler *handler,
476 struct ib_event *record);
477
478int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey);
479int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey);
480
c4028958 481void ipoib_pkey_poll(struct work_struct *work);
1da177e4 482int ipoib_pkey_dev_delay_open(struct net_device *dev);
2dfbfc37 483void ipoib_drain_cq(struct net_device *dev);
1da177e4 484
82c24c18
EC		 485void ipoib_set_ethtool_ops(struct net_device *dev);
486
839fcaba
MT		 487#ifdef CONFIG_INFINIBAND_IPOIB_CM
488
2337f809
RD		 489#define IPOIB_FLAGS_RC 0x80
490#define IPOIB_FLAGS_UC 0x40
839fcaba
MT		 491
492/* We don't support UC connections at the moment */
493#define IPOIB_CM_SUPPORTED(ha) (ha[0] & (IPOIB_FLAGS_RC))
494
68e995a2
PS		 495extern int ipoib_max_conn_qp;
496
839fcaba
MT		 497static inline int ipoib_cm_admin_enabled(struct net_device *dev)
498{
499 struct ipoib_dev_priv *priv = netdev_priv(dev);
500 return IPOIB_CM_SUPPORTED(dev->dev_addr) &&
501 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
502}
503
504static inline int ipoib_cm_enabled(struct net_device *dev, struct neighbour *n)
505{
506 struct ipoib_dev_priv *priv = netdev_priv(dev);
507 return IPOIB_CM_SUPPORTED(n->ha) &&
508 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
509}
510
511static inline int ipoib_cm_up(struct ipoib_neigh *neigh)
512
513{
514 return test_bit(IPOIB_FLAG_OPER_UP, &neigh->cm->flags);
515}
516
517static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh)
518{
519 return neigh->cm;
520}
521
522static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx)
523{
524 neigh->cm = tx;
525}
526
68e995a2
PS		 527static inline int ipoib_cm_has_srq(struct net_device *dev)
528{
529 struct ipoib_dev_priv *priv = netdev_priv(dev);
530 return !!priv->cm.srq;
531}
532
586a6934
PS		 533static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev)
534{
535 struct ipoib_dev_priv *priv = netdev_priv(dev);
536 return priv->cm.max_cm_mtu;
537}
538
839fcaba
MT		 539void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx);
540int ipoib_cm_dev_open(struct net_device *dev);
541void ipoib_cm_dev_stop(struct net_device *dev);
542int ipoib_cm_dev_init(struct net_device *dev);
543int ipoib_cm_add_mode_attr(struct net_device *dev);
544void ipoib_cm_dev_cleanup(struct net_device *dev);
545struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path,
546 struct ipoib_neigh *neigh);
547void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx);
2337f809 548void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb,
839fcaba
MT		 549 unsigned int mtu);
550void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc);
1b524963 551void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc);
839fcaba
MT		 552#else
553
554struct ipoib_cm_tx;
555
68e995a2
PS		 556#define ipoib_max_conn_qp 0
557
839fcaba
MT		 558static inline int ipoib_cm_admin_enabled(struct net_device *dev)
559{
560 return 0;
561}
562static inline int ipoib_cm_enabled(struct net_device *dev, struct neighbour *n)
563
564{
565 return 0;
566}
567
568static inline int ipoib_cm_up(struct ipoib_neigh *neigh)
569
570{
571 return 0;
572}
573
574static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh)
575{
576 return NULL;
577}
578
579static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx)
580{
581}
582
68e995a2
PS		 583static inline int ipoib_cm_has_srq(struct net_device *dev)
584{
585 return 0;
586}
587
586a6934
PS		 588static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev)
589{
590 return 0;
591}
592
839fcaba
MT		 593static inline
594void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx)
595{
596 return;
597}
598
599static inline
600int ipoib_cm_dev_open(struct net_device *dev)
601{
602 return 0;
603}
604
605static inline
606void ipoib_cm_dev_stop(struct net_device *dev)
607{
608 return;
609}
610
611static inline
612int ipoib_cm_dev_init(struct net_device *dev)
613{
614 return -ENOSYS;
615}
616
617static inline
618void ipoib_cm_dev_cleanup(struct net_device *dev)
619{
620 return;
621}
622
623static inline
624struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path,
625 struct ipoib_neigh *neigh)
626{
627 return NULL;
628}
629
630static inline
631void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx)
632{
633 return;
634}
635
636static inline
637int ipoib_cm_add_mode_attr(struct net_device *dev)
638{
639 return 0;
640}
641
2337f809 642static inline void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb,
839fcaba
MT		 643 unsigned int mtu)
644{
645 dev_kfree_skb_any(skb);
646}
647
648static inline void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
649{
650}
651
1b524963
MT		 652static inline void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc)
653{
654}
839fcaba
MT		 655#endif
656
1da177e4 657#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
1732b0ef
RD		 658void ipoib_create_debug_files(struct net_device *dev);
659void ipoib_delete_debug_files(struct net_device *dev);
1da177e4
LT		 660int ipoib_register_debugfs(void);
661void ipoib_unregister_debugfs(void);
662#else
1732b0ef
RD		 663static inline void ipoib_create_debug_files(struct net_device *dev) { }
664static inline void ipoib_delete_debug_files(struct net_device *dev) { }
1da177e4
LT		 665static inline int ipoib_register_debugfs(void) { return 0; }
666static inline void ipoib_unregister_debugfs(void) { }
667#endif
668
1da177e4
LT		 669#define ipoib_printk(level, priv, format, arg...) \
670 printk(level "%s: " format, ((struct ipoib_dev_priv *) priv)->dev->name , ## arg)
671#define ipoib_warn(priv, format, arg...) \
672 ipoib_printk(KERN_WARNING, priv, format , ## arg)
673
0f485251
SM		 674extern int ipoib_sendq_size;
675extern int ipoib_recvq_size;
1da177e4 676
c1a0b23b
MT		 677extern struct ib_sa_client ipoib_sa_client;
678
1da177e4
LT		 679#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
680extern int ipoib_debug_level;
681
682#define ipoib_dbg(priv, format, arg...) \
2337f809 683 do { \
1da177e4
LT		 684 if (ipoib_debug_level > 0) \
685 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
686 } while (0)
687#define ipoib_dbg_mcast(priv, format, arg...) \
2337f809 688 do { \
1da177e4
LT		 689 if (mcast_debug_level > 0) \
690 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
691 } while (0)
692#else /* CONFIG_INFINIBAND_IPOIB_DEBUG */
693#define ipoib_dbg(priv, format, arg...) \
694 do { (void) (priv); } while (0)
695#define ipoib_dbg_mcast(priv, format, arg...) \
696 do { (void) (priv); } while (0)
697#endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */
698
699#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG_DATA
700#define ipoib_dbg_data(priv, format, arg...) \
2337f809 701 do { \
1da177e4
LT		 702 if (data_debug_level > 0) \
703 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
704 } while (0)
705#else /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
706#define ipoib_dbg_data(priv, format, arg...) \
707 do { (void) (priv); } while (0)
708#endif /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
709
710
37c22a77
JM		 711#define IPOIB_GID_FMT "%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x:" \
712 "%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x"
713
714#define IPOIB_GID_RAW_ARG(gid) ((u8 *)(gid))[0], \
715 ((u8 *)(gid))[1], \
716 ((u8 *)(gid))[2], \
717 ((u8 *)(gid))[3], \
718 ((u8 *)(gid))[4], \
719 ((u8 *)(gid))[5], \
720 ((u8 *)(gid))[6], \
721 ((u8 *)(gid))[7], \
722 ((u8 *)(gid))[8], \
723 ((u8 *)(gid))[9], \
724 ((u8 *)(gid))[10],\
725 ((u8 *)(gid))[11],\
726 ((u8 *)(gid))[12],\
727 ((u8 *)(gid))[13],\
728 ((u8 *)(gid))[14],\
729 ((u8 *)(gid))[15]
730
731#define IPOIB_GID_ARG(gid) IPOIB_GID_RAW_ARG((gid).raw)
1da177e4 732
839fcaba
MT		 733#define IPOIB_QPN(ha) (be32_to_cpup((__be32 *) ha) & 0xffffff)
734
1da177e4 735#endif /* _IPOIB_H */
Linux kernel - Deliverables
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