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IPoIB: Avoid flushing the driver workqueue on dev_down
[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>
936d7de3 47#include <net/sch_generic.h>
1da177e4 48
60063497 49#include <linux/atomic.h>
1da177e4 50
a4d61e84
RD		 51#include <rdma/ib_verbs.h>
52#include <rdma/ib_pack.h>
53#include <rdma/ib_sa.h>
19e364f6 54#include <linux/sched.h>
1da177e4
LT		 55
56/* constants */
57
ee1e2c82
MS		 58enum ipoib_flush_level {
59 IPOIB_FLUSH_LIGHT,
60 IPOIB_FLUSH_NORMAL,
61 IPOIB_FLUSH_HEAVY
62};
63
1da177e4 64enum {
2337f809 65 IPOIB_ENCAP_LEN = 4,
1da177e4 66
bc7b3a36
SM		 67 IPOIB_UD_HEAD_SIZE = IB_GRH_BYTES + IPOIB_ENCAP_LEN,
68 IPOIB_UD_RX_SG = 2, /* max buffer needed for 4K mtu */
69
2337f809
RD		 70 IPOIB_CM_MTU = 0x10000 - 0x10, /* padding to align header to 16 */
71 IPOIB_CM_BUF_SIZE = IPOIB_CM_MTU + IPOIB_ENCAP_LEN,
72 IPOIB_CM_HEAD_SIZE = IPOIB_CM_BUF_SIZE % PAGE_SIZE,
73 IPOIB_CM_RX_SG = ALIGN(IPOIB_CM_BUF_SIZE, PAGE_SIZE) / PAGE_SIZE,
bc3a290b
EC		 74 IPOIB_RX_RING_SIZE = 256,
75 IPOIB_TX_RING_SIZE = 128,
0f485251
SM		 76 IPOIB_MAX_QUEUE_SIZE = 8192,
77 IPOIB_MIN_QUEUE_SIZE = 2,
68e995a2 78 IPOIB_CM_MAX_CONN_QP = 4096,
1da177e4 79
2337f809 80 IPOIB_NUM_WC = 4,
1da177e4
LT		 81
82 IPOIB_MAX_PATH_REC_QUEUE = 3,
2337f809
RD		 83 IPOIB_MAX_MCAST_QUEUE = 3,
84
85 IPOIB_FLAG_OPER_UP = 0,
86 IPOIB_FLAG_INITIALIZED = 1,
87 IPOIB_FLAG_ADMIN_UP = 2,
88 IPOIB_PKEY_ASSIGNED = 3,
89 IPOIB_PKEY_STOP = 4,
90 IPOIB_FLAG_SUBINTERFACE = 5,
91 IPOIB_MCAST_RUN = 6,
92 IPOIB_STOP_REAPER = 7,
2337f809 93 IPOIB_FLAG_ADMIN_CM = 9,
1b524963 94 IPOIB_FLAG_UMCAST = 10,
b63b70d8
SP		 95 IPOIB_STOP_NEIGH_GC = 11,
96 IPOIB_NEIGH_TBL_FLUSH = 12,
1da177e4
LT		 97
98 IPOIB_MAX_BACKOFF_SECONDS = 16,
99
2337f809 100 IPOIB_MCAST_FLAG_FOUND = 0, /* used in set_multicast_list */
1da177e4 101 IPOIB_MCAST_FLAG_SENDONLY = 1,
2337f809 102 IPOIB_MCAST_FLAG_BUSY = 2, /* joining or already joined */
1da177e4 103 IPOIB_MCAST_FLAG_ATTACHED = 3,
f56bcd80
EC		 104
105 MAX_SEND_CQE = 16,
f89271da 106 IPOIB_CM_COPYBREAK = 256,
9baa0b03
OG		 107
108 IPOIB_NON_CHILD = 0,
109 IPOIB_LEGACY_CHILD = 1,
110 IPOIB_RTNL_CHILD = 2,
1da177e4
LT		 111};
112
839fcaba
MT		 113#define IPOIB_OP_RECV (1ul << 31)
114#ifdef CONFIG_INFINIBAND_IPOIB_CM
1b524963 115#define IPOIB_OP_CM (1ul << 30)
839fcaba 116#else
1b524963 117#define IPOIB_OP_CM (0)
839fcaba
MT		 118#endif
119
9d1ad66e
SP		 120#define IPOIB_QPN_MASK ((__force u32) cpu_to_be32(0xFFFFFF))
121
1da177e4
LT		 122/* structs */
123
124struct ipoib_header {
97f52eb4
SH		 125 __be16 proto;
126 u16 reserved;
1da177e4
LT		 127};
128
936d7de3
RD		 129struct ipoib_cb {
130 struct qdisc_skb_cb qdisc_cb;
131 u8 hwaddr[INFINIBAND_ALEN];
1da177e4
LT		 132};
133
81668838
SH		 134/* Used for all multicast joins (broadcast, IPv4 mcast and IPv6 mcast) */
135struct ipoib_mcast {
136 struct ib_sa_mcmember_rec mcmember;
137 struct ib_sa_multicast *mc;
2337f809 138 struct ipoib_ah *ah;
81668838
SH		 139
140 struct rb_node rb_node;
141 struct list_head list;
142
143 unsigned long created;
144 unsigned long backoff;
145
146 unsigned long flags;
147 unsigned char logcount;
148
149 struct list_head neigh_list;
150
151 struct sk_buff_head pkt_queue;
152
153 struct net_device *dev;
154};
1da177e4 155
1993d683
RD		 156struct ipoib_rx_buf {
157 struct sk_buff *skb;
bc7b3a36 158 u64 mapping[IPOIB_UD_RX_SG];
1993d683
RD		 159};
160
161struct ipoib_tx_buf {
1da177e4 162 struct sk_buff *skb;
7143740d 163 u64 mapping[MAX_SKB_FRAGS + 1];
1da177e4
LT		 164};
165
e112373f
EC		 166struct ipoib_cm_tx_buf {
167 struct sk_buff *skb;
168 u64 mapping;
169};
170
839fcaba
MT		 171struct ib_cm_id;
172
173struct ipoib_cm_data {
174 __be32 qpn; /* High byte MUST be ignored on receive */
175 __be32 mtu;
176};
177
518b1646
MT		 178/*
179 * Quoting 10.3.1 Queue Pair and EE Context States:
180 *
181 * Note, for QPs that are associated with an SRQ, the Consumer should take the
182 * QP through the Error State before invoking a Destroy QP or a Modify QP to the
183 * Reset State. The Consumer may invoke the Destroy QP without first performing
184 * a Modify QP to the Error State and waiting for the Affiliated Asynchronous
185 * Last WQE Reached Event. However, if the Consumer does not wait for the
186 * Affiliated Asynchronous Last WQE Reached Event, then WQE and Data Segment
187 * leakage may occur. Therefore, it is good programming practice to tear down a
188 * QP that is associated with an SRQ by using the following process:
189 *
190 * - Put the QP in the Error State
191 * - Wait for the Affiliated Asynchronous Last WQE Reached Event;
192 * - either:
193 * drain the CQ by invoking the Poll CQ verb and either wait for CQ
194 * to be empty or the number of Poll CQ operations has exceeded
195 * CQ capacity size;
196 * - or
197 * post another WR that completes on the same CQ and wait for this
198 * WR to return as a WC;
199 * - and then invoke a Destroy QP or Reset QP.
200 *
201 * We use the second option and wait for a completion on the
ec56dc0b 202 * same CQ before destroying QPs attached to our SRQ.
518b1646
MT		 203 */
204
205enum ipoib_cm_state {
206 IPOIB_CM_RX_LIVE,
207 IPOIB_CM_RX_ERROR, /* Ignored by stale task */
208 IPOIB_CM_RX_FLUSH /* Last WQE Reached event observed */
209};
210
839fcaba 211struct ipoib_cm_rx {
2337f809
RD		 212 struct ib_cm_id *id;
213 struct ib_qp *qp;
68e995a2 214 struct ipoib_cm_rx_buf *rx_ring;
2337f809
RD		 215 struct list_head list;
216 struct net_device *dev;
217 unsigned long jiffies;
218 enum ipoib_cm_state state;
68e995a2 219 int recv_count;
839fcaba
MT		 220};
221
222struct ipoib_cm_tx {
2337f809
RD		 223 struct ib_cm_id *id;
224 struct ib_qp *qp;
839fcaba
MT		 225 struct list_head list;
226 struct net_device *dev;
227 struct ipoib_neigh *neigh;
228 struct ipoib_path *path;
e112373f 229 struct ipoib_cm_tx_buf *tx_ring;
2337f809
RD		 230 unsigned tx_head;
231 unsigned tx_tail;
232 unsigned long flags;
233 u32 mtu;
839fcaba
MT		 234};
235
236struct ipoib_cm_rx_buf {
237 struct sk_buff *skb;
238 u64 mapping[IPOIB_CM_RX_SG];
239};
240
241struct ipoib_cm_dev_priv {
2337f809 242 struct ib_srq *srq;
839fcaba 243 struct ipoib_cm_rx_buf *srq_ring;
2337f809
RD		 244 struct ib_cm_id *id;
245 struct list_head passive_ids; /* state: LIVE */
246 struct list_head rx_error_list; /* state: ERROR */
247 struct list_head rx_flush_list; /* state: FLUSH, drain not started */
248 struct list_head rx_drain_list; /* state: FLUSH, drain started */
249 struct list_head rx_reap_list; /* state: FLUSH, drain done */
839fcaba
MT		 250 struct work_struct start_task;
251 struct work_struct reap_task;
252 struct work_struct skb_task;
518b1646 253 struct work_struct rx_reap_task;
839fcaba
MT		 254 struct delayed_work stale_task;
255 struct sk_buff_head skb_queue;
2337f809
RD		 256 struct list_head start_list;
257 struct list_head reap_list;
258 struct ib_wc ibwc[IPOIB_NUM_WC];
259 struct ib_sge rx_sge[IPOIB_CM_RX_SG];
839fcaba 260 struct ib_recv_wr rx_wr;
68e995a2 261 int nonsrq_conn_qp;
586a6934
PS		 262 int max_cm_mtu;
263 int num_frags;
839fcaba
MT		 264};
265
28d52b3c
EC		 266struct ipoib_ethtool_st {
267 u16 coalesce_usecs;
268 u16 max_coalesced_frames;
269};
270
66172c09
SP		 271struct ipoib_neigh_table;
272
b63b70d8 273struct ipoib_neigh_hash {
66172c09 274 struct ipoib_neigh_table *ntbl;
b63b70d8
SP		 275 struct ipoib_neigh __rcu **buckets;
276 struct rcu_head rcu;
277 u32 mask;
278 u32 size;
279};
280
281struct ipoib_neigh_table {
282 struct ipoib_neigh_hash __rcu *htbl;
b63b70d8
SP		 283 atomic_t entries;
284 struct completion flushed;
66172c09 285 struct completion deleted;
b63b70d8
SP		 286};
287
1da177e4 288/*
943c246e
RD		 289 * Device private locking: network stack tx_lock protects members used
290 * in TX fast path, lock protects everything else. lock nests inside
291 * of tx_lock (ie tx_lock must be acquired first if needed).
1da177e4
LT		 292 */
293struct ipoib_dev_priv {
294 spinlock_t lock;
295
296 struct net_device *dev;
297
bea3348e
SH		 298 struct napi_struct napi;
299
1da177e4
LT		 300 unsigned long flags;
301
f47944cc 302 struct rw_semaphore vlan_rwsem;
1da177e4
LT		 303
304 struct rb_root path_tree;
305 struct list_head path_list;
306
b63b70d8
SP		 307 struct ipoib_neigh_table ntbl;
308
1da177e4
LT		 309 struct ipoib_mcast *broadcast;
310 struct list_head multicast_list;
311 struct rb_root multicast_tree;
312
26bbf13c 313 struct delayed_work pkey_poll_task;
c4028958 314 struct delayed_work mcast_task;
e8224e4b 315 struct work_struct carrier_on_task;
ee1e2c82
MS		 316 struct work_struct flush_light;
317 struct work_struct flush_normal;
318 struct work_struct flush_heavy;
1da177e4 319 struct work_struct restart_task;
c4028958 320 struct delayed_work ah_reap_task;
b63b70d8 321 struct delayed_work neigh_reap_task;
1da177e4 322 struct ib_device *ca;
2337f809
RD		 323 u8 port;
324 u16 pkey;
325 u16 pkey_index;
326 struct ib_pd *pd;
327 struct ib_mr *mr;
f56bcd80
EC		 328 struct ib_cq *recv_cq;
329 struct ib_cq *send_cq;
2337f809
RD		 330 struct ib_qp *qp;
331 u32 qkey;
1da177e4
LT		 332
333 union ib_gid local_gid;
2337f809 334 u16 local_lid;
1da177e4
LT		 335
336 unsigned int admin_mtu;
337 unsigned int mcast_mtu;
bc7b3a36 338 unsigned int max_ib_mtu;
1da177e4 339
1993d683 340 struct ipoib_rx_buf *rx_ring;
1da177e4 341
1993d683 342 struct ipoib_tx_buf *tx_ring;
2337f809
RD		 343 unsigned tx_head;
344 unsigned tx_tail;
7143740d 345 struct ib_sge tx_sge[MAX_SKB_FRAGS + 1];
1993d683 346 struct ib_send_wr tx_wr;
2337f809 347 unsigned tx_outstanding;
f56bcd80 348 struct ib_wc send_wc[MAX_SEND_CQE];
1da177e4 349
bc7b3a36
SM		 350 struct ib_recv_wr rx_wr;
351 struct ib_sge rx_sge[IPOIB_UD_RX_SG];
352
1da177e4
LT		 353 struct ib_wc ibwc[IPOIB_NUM_WC];
354
355 struct list_head dead_ahs;
356
357 struct ib_event_handler event_handler;
358
1da177e4
LT		 359 struct net_device *parent;
360 struct list_head child_intfs;
361 struct list_head list;
9baa0b03 362 int child_type;
1da177e4 363
839fcaba
MT		 364#ifdef CONFIG_INFINIBAND_IPOIB_CM
365 struct ipoib_cm_dev_priv cm;
366#endif
367
1da177e4
LT		 368#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
369 struct list_head fs_list;
370 struct dentry *mcg_dentry;
1732b0ef 371 struct dentry *path_dentry;
1da177e4 372#endif
40ca1988 373 int hca_caps;
28d52b3c 374 struct ipoib_ethtool_st ethtool;
57ce41d1 375 struct timer_list poll_timer;
1da177e4
LT		 376};
377
378struct ipoib_ah {
379 struct net_device *dev;
2337f809 380 struct ib_ah *ah;
1da177e4 381 struct list_head list;
2337f809
RD		 382 struct kref ref;
383 unsigned last_send;
1da177e4
LT		 384};
385
386struct ipoib_path {
387 struct net_device *dev;
388 struct ib_sa_path_rec pathrec;
389 struct ipoib_ah *ah;
390 struct sk_buff_head queue;
391
392 struct list_head neigh_list;
393
2337f809 394 int query_id;
1da177e4
LT		 395 struct ib_sa_query *query;
396 struct completion done;
397
2337f809 398 struct rb_node rb_node;
1da177e4 399 struct list_head list;
ee1e2c82 400 int valid;
1da177e4
LT		 401};
402
403struct ipoib_neigh {
404 struct ipoib_ah *ah;
839fcaba
MT		 405#ifdef CONFIG_INFINIBAND_IPOIB_CM
406 struct ipoib_cm_tx *cm;
407#endif
b63b70d8 408 u8 daddr[INFINIBAND_ALEN];
1da177e4
LT		 409 struct sk_buff_head queue;
410
732a2170 411 struct net_device *dev;
1da177e4
LT		 412
413 struct list_head list;
b63b70d8
SP		 414 struct ipoib_neigh __rcu *hnext;
415 struct rcu_head rcu;
416 atomic_t refcnt;
417 unsigned long alive;
1da177e4
LT		 418};
419
bc7b3a36
SM		 420#define IPOIB_UD_MTU(ib_mtu) (ib_mtu - IPOIB_ENCAP_LEN)
421#define IPOIB_UD_BUF_SIZE(ib_mtu) (ib_mtu + IB_GRH_BYTES)
422
423static inline int ipoib_ud_need_sg(unsigned int ib_mtu)
424{
425 return IPOIB_UD_BUF_SIZE(ib_mtu) > PAGE_SIZE;
426}
427
b63b70d8
SP		 428void ipoib_neigh_dtor(struct ipoib_neigh *neigh);
429static inline void ipoib_neigh_put(struct ipoib_neigh *neigh)
1da177e4 430{
b63b70d8
SP		 431 if (atomic_dec_and_test(&neigh->refcnt))
432 ipoib_neigh_dtor(neigh);
1da177e4 433}
b63b70d8
SP		 434struct ipoib_neigh *ipoib_neigh_get(struct net_device *dev, u8 *daddr);
435struct ipoib_neigh *ipoib_neigh_alloc(u8 *daddr,
732a2170 436 struct net_device *dev);
b63b70d8
SP		 437void ipoib_neigh_free(struct ipoib_neigh *neigh);
438void ipoib_del_neighs_by_gid(struct net_device *dev, u8 *gid);
d2e0655e 439
1da177e4
LT		 440extern struct workqueue_struct *ipoib_workqueue;
441
442/* functions */
443
bea3348e 444int ipoib_poll(struct napi_struct *napi, int budget);
1da177e4 445void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr);
57ce41d1 446void ipoib_send_comp_handler(struct ib_cq *cq, void *dev_ptr);
1da177e4
LT		 447
448struct ipoib_ah *ipoib_create_ah(struct net_device *dev,
449 struct ib_pd *pd, struct ib_ah_attr *attr);
450void ipoib_free_ah(struct kref *kref);
451static inline void ipoib_put_ah(struct ipoib_ah *ah)
452{
453 kref_put(&ah->ref, ipoib_free_ah);
454}
8ae5a8a2 455int ipoib_open(struct net_device *dev);
1da177e4 456int ipoib_add_pkey_attr(struct net_device *dev);
335a64a5 457int ipoib_add_umcast_attr(struct net_device *dev);
1da177e4
LT		 458
459void ipoib_send(struct net_device *dev, struct sk_buff *skb,
460 struct ipoib_ah *address, u32 qpn);
c4028958 461void ipoib_reap_ah(struct work_struct *work);
1da177e4 462
ee1e2c82 463void ipoib_mark_paths_invalid(struct net_device *dev);
1da177e4
LT		 464void ipoib_flush_paths(struct net_device *dev);
465struct ipoib_dev_priv *ipoib_intf_alloc(const char *format);
466
467int ipoib_ib_dev_init(struct net_device *dev, struct ib_device *ca, int port);
ee1e2c82
MS		 468void ipoib_ib_dev_flush_light(struct work_struct *work);
469void ipoib_ib_dev_flush_normal(struct work_struct *work);
470void ipoib_ib_dev_flush_heavy(struct work_struct *work);
26bbf13c 471void ipoib_pkey_event(struct work_struct *work);
1da177e4
LT		 472void ipoib_ib_dev_cleanup(struct net_device *dev);
473
474int ipoib_ib_dev_open(struct net_device *dev);
475int ipoib_ib_dev_up(struct net_device *dev);
0b3ea082 476int ipoib_ib_dev_down(struct net_device *dev, int flush);
26bbf13c 477int ipoib_ib_dev_stop(struct net_device *dev, int flush);
1da177e4
LT		 478
479int ipoib_dev_init(struct net_device *dev, struct ib_device *ca, int port);
480void ipoib_dev_cleanup(struct net_device *dev);
481
c4028958 482void ipoib_mcast_join_task(struct work_struct *work);
e8224e4b 483void ipoib_mcast_carrier_on_task(struct work_struct *work);
b63b70d8 484void ipoib_mcast_send(struct net_device *dev, u8 *daddr, struct sk_buff *skb);
1da177e4 485
c4028958 486void ipoib_mcast_restart_task(struct work_struct *work);
1da177e4 487int ipoib_mcast_start_thread(struct net_device *dev);
8d2cae06 488int ipoib_mcast_stop_thread(struct net_device *dev, int flush);
1da177e4
LT		 489
490void ipoib_mcast_dev_down(struct net_device *dev);
491void ipoib_mcast_dev_flush(struct net_device *dev);
492
8ae5a8a2 493#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
1da177e4 494struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct net_device *dev);
1da177e4
LT		 495int ipoib_mcast_iter_next(struct ipoib_mcast_iter *iter);
496void ipoib_mcast_iter_read(struct ipoib_mcast_iter *iter,
497 union ib_gid *gid,
498 unsigned long *created,
499 unsigned int *queuelen,
500 unsigned int *complete,
501 unsigned int *send_only);
1732b0ef
RD		 502
503struct ipoib_path_iter *ipoib_path_iter_init(struct net_device *dev);
504int ipoib_path_iter_next(struct ipoib_path_iter *iter);
505void ipoib_path_iter_read(struct ipoib_path_iter *iter,
506 struct ipoib_path *path);
8ae5a8a2 507#endif
1da177e4
LT		 508
509int ipoib_mcast_attach(struct net_device *dev, u16 mlid,
d0de1362 510 union ib_gid *mgid, int set_qkey);
1da177e4 511
5b6810e0 512int ipoib_init_qp(struct net_device *dev);
1da177e4
LT		 513int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca);
514void ipoib_transport_dev_cleanup(struct net_device *dev);
515
516void ipoib_event(struct ib_event_handler *handler,
517 struct ib_event *record);
518
519int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey);
520int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey);
521
9baa0b03
OG		 522int __ipoib_vlan_add(struct ipoib_dev_priv *ppriv, struct ipoib_dev_priv *priv,
523 u16 pkey, int child_type);
524
525int __init ipoib_netlink_init(void);
526void __exit ipoib_netlink_fini(void);
527
862096a8
OG		 528void ipoib_set_umcast(struct net_device *ndev, int umcast_val);
529int ipoib_set_mode(struct net_device *dev, const char *buf);
530
9baa0b03
OG		 531void ipoib_setup(struct net_device *dev);
532
c4028958 533void ipoib_pkey_poll(struct work_struct *work);
1da177e4 534int ipoib_pkey_dev_delay_open(struct net_device *dev);
2dfbfc37 535void ipoib_drain_cq(struct net_device *dev);
1da177e4 536
82c24c18 537void ipoib_set_ethtool_ops(struct net_device *dev);
83bb63f6 538int ipoib_set_dev_features(struct ipoib_dev_priv *priv, struct ib_device *hca);
82c24c18 539
2337f809
RD		 540#define IPOIB_FLAGS_RC 0x80
541#define IPOIB_FLAGS_UC 0x40
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MT		 542
543/* We don't support UC connections at the moment */
544#define IPOIB_CM_SUPPORTED(ha) (ha[0] & (IPOIB_FLAGS_RC))
545
71d9c5f9
RD		 546#ifdef CONFIG_INFINIBAND_IPOIB_CM
547
68e995a2
PS		 548extern int ipoib_max_conn_qp;
549
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MT		 550static inline int ipoib_cm_admin_enabled(struct net_device *dev)
551{
552 struct ipoib_dev_priv *priv = netdev_priv(dev);
553 return IPOIB_CM_SUPPORTED(dev->dev_addr) &&
554 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
555}
556
b63b70d8 557static inline int ipoib_cm_enabled(struct net_device *dev, u8 *hwaddr)
839fcaba
MT		 558{
559 struct ipoib_dev_priv *priv = netdev_priv(dev);
b63b70d8 560 return IPOIB_CM_SUPPORTED(hwaddr) &&
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MT		 561 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
562}
563
564static inline int ipoib_cm_up(struct ipoib_neigh *neigh)
565
566{
567 return test_bit(IPOIB_FLAG_OPER_UP, &neigh->cm->flags);
568}
569
570static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh)
571{
572 return neigh->cm;
573}
574
575static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx)
576{
577 neigh->cm = tx;
578}
579
68e995a2
PS		 580static inline int ipoib_cm_has_srq(struct net_device *dev)
581{
582 struct ipoib_dev_priv *priv = netdev_priv(dev);
583 return !!priv->cm.srq;
584}
585
586a6934
PS		 586static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev)
587{
588 struct ipoib_dev_priv *priv = netdev_priv(dev);
589 return priv->cm.max_cm_mtu;
590}
591
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MT		 592void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx);
593int ipoib_cm_dev_open(struct net_device *dev);
594void ipoib_cm_dev_stop(struct net_device *dev);
595int ipoib_cm_dev_init(struct net_device *dev);
596int ipoib_cm_add_mode_attr(struct net_device *dev);
597void ipoib_cm_dev_cleanup(struct net_device *dev);
598struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path,
599 struct ipoib_neigh *neigh);
600void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx);
2337f809 601void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb,
839fcaba
MT		 602 unsigned int mtu);
603void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc);
1b524963 604void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc);
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MT		 605#else
606
607struct ipoib_cm_tx;
608
68e995a2
PS		 609#define ipoib_max_conn_qp 0
610
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MT		 611static inline int ipoib_cm_admin_enabled(struct net_device *dev)
612{
613 return 0;
614}
b63b70d8 615static inline int ipoib_cm_enabled(struct net_device *dev, u8 *hwaddr)
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MT		 616
617{
618 return 0;
619}
620
621static inline int ipoib_cm_up(struct ipoib_neigh *neigh)
622
623{
624 return 0;
625}
626
627static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh)
628{
629 return NULL;
630}
631
632static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx)
633{
634}
635
68e995a2
PS		 636static inline int ipoib_cm_has_srq(struct net_device *dev)
637{
638 return 0;
639}
640
586a6934
PS		 641static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev)
642{
643 return 0;
644}
645
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MT		 646static inline
647void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx)
648{
649 return;
650}
651
652static inline
653int ipoib_cm_dev_open(struct net_device *dev)
654{
655 return 0;
656}
657
658static inline
659void ipoib_cm_dev_stop(struct net_device *dev)
660{
661 return;
662}
663
664static inline
665int ipoib_cm_dev_init(struct net_device *dev)
666{
667 return -ENOSYS;
668}
669
670static inline
671void ipoib_cm_dev_cleanup(struct net_device *dev)
672{
673 return;
674}
675
676static inline
677struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path,
678 struct ipoib_neigh *neigh)
679{
680 return NULL;
681}
682
683static inline
684void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx)
685{
686 return;
687}
688
689static inline
690int ipoib_cm_add_mode_attr(struct net_device *dev)
691{
692 return 0;
693}
694
2337f809 695static inline void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb,
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MT		 696 unsigned int mtu)
697{
698 dev_kfree_skb_any(skb);
699}
700
701static inline void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
702{
703}
704
1b524963
MT		 705static inline void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc)
706{
707}
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MT		 708#endif
709
1da177e4 710#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
1732b0ef
RD		 711void ipoib_create_debug_files(struct net_device *dev);
712void ipoib_delete_debug_files(struct net_device *dev);
1da177e4
LT		 713int ipoib_register_debugfs(void);
714void ipoib_unregister_debugfs(void);
715#else
1732b0ef
RD		 716static inline void ipoib_create_debug_files(struct net_device *dev) { }
717static inline void ipoib_delete_debug_files(struct net_device *dev) { }
1da177e4
LT		 718static inline int ipoib_register_debugfs(void) { return 0; }
719static inline void ipoib_unregister_debugfs(void) { }
720#endif
721
1da177e4
LT		 722#define ipoib_printk(level, priv, format, arg...) \
723 printk(level "%s: " format, ((struct ipoib_dev_priv *) priv)->dev->name , ## arg)
724#define ipoib_warn(priv, format, arg...) \
725 ipoib_printk(KERN_WARNING, priv, format , ## arg)
726
0f485251
SM		 727extern int ipoib_sendq_size;
728extern int ipoib_recvq_size;
1da177e4 729
c1a0b23b
MT		 730extern struct ib_sa_client ipoib_sa_client;
731
1da177e4
LT		 732#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
733extern int ipoib_debug_level;
734
735#define ipoib_dbg(priv, format, arg...) \
2337f809 736 do { \
1da177e4
LT		 737 if (ipoib_debug_level > 0) \
738 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
739 } while (0)
740#define ipoib_dbg_mcast(priv, format, arg...) \
2337f809 741 do { \
1da177e4
LT		 742 if (mcast_debug_level > 0) \
743 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
744 } while (0)
745#else /* CONFIG_INFINIBAND_IPOIB_DEBUG */
746#define ipoib_dbg(priv, format, arg...) \
747 do { (void) (priv); } while (0)
748#define ipoib_dbg_mcast(priv, format, arg...) \
749 do { (void) (priv); } while (0)
750#endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */
751
752#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG_DATA
753#define ipoib_dbg_data(priv, format, arg...) \
2337f809 754 do { \
1da177e4
LT		 755 if (data_debug_level > 0) \
756 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
757 } while (0)
758#else /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
759#define ipoib_dbg_data(priv, format, arg...) \
760 do { (void) (priv); } while (0)
761#endif /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
762
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MT		 763#define IPOIB_QPN(ha) (be32_to_cpup((__be32 *) ha) & 0xffffff)
764
4b48680b
YB		 765extern const char ipoib_driver_version[];
766
1da177e4 767#endif /* _IPOIB_H */
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