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IB/ipath: Add P_Key change event support
[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,
a9c8ba58 104 IPOIB_MCAST_JOIN_STARTED = 4,
f56bcd80
EC		 105
106 MAX_SEND_CQE = 16,
f89271da 107 IPOIB_CM_COPYBREAK = 256,
9baa0b03
OG		 108
109 IPOIB_NON_CHILD = 0,
110 IPOIB_LEGACY_CHILD = 1,
111 IPOIB_RTNL_CHILD = 2,
1da177e4
LT		 112};
113
839fcaba
MT		 114#define IPOIB_OP_RECV (1ul << 31)
115#ifdef CONFIG_INFINIBAND_IPOIB_CM
1b524963 116#define IPOIB_OP_CM (1ul << 30)
839fcaba 117#else
1b524963 118#define IPOIB_OP_CM (0)
839fcaba
MT		 119#endif
120
9d1ad66e
SP		 121#define IPOIB_QPN_MASK ((__force u32) cpu_to_be32(0xFFFFFF))
122
1da177e4
LT		 123/* structs */
124
125struct ipoib_header {
97f52eb4
SH		 126 __be16 proto;
127 u16 reserved;
1da177e4
LT		 128};
129
936d7de3
RD		 130struct ipoib_cb {
131 struct qdisc_skb_cb qdisc_cb;
132 u8 hwaddr[INFINIBAND_ALEN];
1da177e4
LT		 133};
134
81668838
SH		 135/* Used for all multicast joins (broadcast, IPv4 mcast and IPv6 mcast) */
136struct ipoib_mcast {
137 struct ib_sa_mcmember_rec mcmember;
138 struct ib_sa_multicast *mc;
2337f809 139 struct ipoib_ah *ah;
81668838
SH		 140
141 struct rb_node rb_node;
142 struct list_head list;
143
144 unsigned long created;
145 unsigned long backoff;
146
147 unsigned long flags;
148 unsigned char logcount;
149
150 struct list_head neigh_list;
151
152 struct sk_buff_head pkt_queue;
153
154 struct net_device *dev;
a9c8ba58 155 struct completion done;
81668838 156};
1da177e4 157
1993d683
RD		 158struct ipoib_rx_buf {
159 struct sk_buff *skb;
bc7b3a36 160 u64 mapping[IPOIB_UD_RX_SG];
1993d683
RD		 161};
162
163struct ipoib_tx_buf {
1da177e4 164 struct sk_buff *skb;
7143740d 165 u64 mapping[MAX_SKB_FRAGS + 1];
1da177e4
LT		 166};
167
e112373f
EC		 168struct ipoib_cm_tx_buf {
169 struct sk_buff *skb;
170 u64 mapping;
171};
172
839fcaba
MT		 173struct ib_cm_id;
174
175struct ipoib_cm_data {
176 __be32 qpn; /* High byte MUST be ignored on receive */
177 __be32 mtu;
178};
179
518b1646
MT		 180/*
181 * Quoting 10.3.1 Queue Pair and EE Context States:
182 *
183 * Note, for QPs that are associated with an SRQ, the Consumer should take the
184 * QP through the Error State before invoking a Destroy QP or a Modify QP to the
185 * Reset State. The Consumer may invoke the Destroy QP without first performing
186 * a Modify QP to the Error State and waiting for the Affiliated Asynchronous
187 * Last WQE Reached Event. However, if the Consumer does not wait for the
188 * Affiliated Asynchronous Last WQE Reached Event, then WQE and Data Segment
189 * leakage may occur. Therefore, it is good programming practice to tear down a
190 * QP that is associated with an SRQ by using the following process:
191 *
192 * - Put the QP in the Error State
193 * - Wait for the Affiliated Asynchronous Last WQE Reached Event;
194 * - either:
195 * drain the CQ by invoking the Poll CQ verb and either wait for CQ
196 * to be empty or the number of Poll CQ operations has exceeded
197 * CQ capacity size;
198 * - or
199 * post another WR that completes on the same CQ and wait for this
200 * WR to return as a WC;
201 * - and then invoke a Destroy QP or Reset QP.
202 *
203 * We use the second option and wait for a completion on the
ec56dc0b 204 * same CQ before destroying QPs attached to our SRQ.
518b1646
MT		 205 */
206
207enum ipoib_cm_state {
208 IPOIB_CM_RX_LIVE,
209 IPOIB_CM_RX_ERROR, /* Ignored by stale task */
210 IPOIB_CM_RX_FLUSH /* Last WQE Reached event observed */
211};
212
839fcaba 213struct ipoib_cm_rx {
2337f809
RD		 214 struct ib_cm_id *id;
215 struct ib_qp *qp;
68e995a2 216 struct ipoib_cm_rx_buf *rx_ring;
2337f809
RD		 217 struct list_head list;
218 struct net_device *dev;
219 unsigned long jiffies;
220 enum ipoib_cm_state state;
68e995a2 221 int recv_count;
839fcaba
MT		 222};
223
224struct ipoib_cm_tx {
2337f809
RD		 225 struct ib_cm_id *id;
226 struct ib_qp *qp;
839fcaba
MT		 227 struct list_head list;
228 struct net_device *dev;
229 struct ipoib_neigh *neigh;
230 struct ipoib_path *path;
e112373f 231 struct ipoib_cm_tx_buf *tx_ring;
2337f809
RD		 232 unsigned tx_head;
233 unsigned tx_tail;
234 unsigned long flags;
235 u32 mtu;
839fcaba
MT		 236};
237
238struct ipoib_cm_rx_buf {
239 struct sk_buff *skb;
240 u64 mapping[IPOIB_CM_RX_SG];
241};
242
243struct ipoib_cm_dev_priv {
2337f809 244 struct ib_srq *srq;
839fcaba 245 struct ipoib_cm_rx_buf *srq_ring;
2337f809
RD		 246 struct ib_cm_id *id;
247 struct list_head passive_ids; /* state: LIVE */
248 struct list_head rx_error_list; /* state: ERROR */
249 struct list_head rx_flush_list; /* state: FLUSH, drain not started */
250 struct list_head rx_drain_list; /* state: FLUSH, drain started */
251 struct list_head rx_reap_list; /* state: FLUSH, drain done */
839fcaba
MT		 252 struct work_struct start_task;
253 struct work_struct reap_task;
254 struct work_struct skb_task;
518b1646 255 struct work_struct rx_reap_task;
839fcaba
MT		 256 struct delayed_work stale_task;
257 struct sk_buff_head skb_queue;
2337f809
RD		 258 struct list_head start_list;
259 struct list_head reap_list;
260 struct ib_wc ibwc[IPOIB_NUM_WC];
261 struct ib_sge rx_sge[IPOIB_CM_RX_SG];
839fcaba 262 struct ib_recv_wr rx_wr;
68e995a2 263 int nonsrq_conn_qp;
586a6934
PS		 264 int max_cm_mtu;
265 int num_frags;
839fcaba
MT		 266};
267
28d52b3c
EC		 268struct ipoib_ethtool_st {
269 u16 coalesce_usecs;
270 u16 max_coalesced_frames;
271};
272
66172c09
SP		 273struct ipoib_neigh_table;
274
b63b70d8 275struct ipoib_neigh_hash {
66172c09 276 struct ipoib_neigh_table *ntbl;
b63b70d8
SP		 277 struct ipoib_neigh __rcu **buckets;
278 struct rcu_head rcu;
279 u32 mask;
280 u32 size;
281};
282
283struct ipoib_neigh_table {
284 struct ipoib_neigh_hash __rcu *htbl;
b63b70d8
SP		 285 atomic_t entries;
286 struct completion flushed;
66172c09 287 struct completion deleted;
b63b70d8
SP		 288};
289
1da177e4 290/*
943c246e
RD		 291 * Device private locking: network stack tx_lock protects members used
292 * in TX fast path, lock protects everything else. lock nests inside
293 * of tx_lock (ie tx_lock must be acquired first if needed).
1da177e4
LT		 294 */
295struct ipoib_dev_priv {
296 spinlock_t lock;
297
298 struct net_device *dev;
299
bea3348e
SH		 300 struct napi_struct napi;
301
1da177e4
LT		 302 unsigned long flags;
303
f47944cc 304 struct rw_semaphore vlan_rwsem;
1da177e4
LT		 305
306 struct rb_root path_tree;
307 struct list_head path_list;
308
b63b70d8
SP		 309 struct ipoib_neigh_table ntbl;
310
1da177e4
LT		 311 struct ipoib_mcast *broadcast;
312 struct list_head multicast_list;
313 struct rb_root multicast_tree;
314
26bbf13c 315 struct delayed_work pkey_poll_task;
c4028958 316 struct delayed_work mcast_task;
e8224e4b 317 struct work_struct carrier_on_task;
ee1e2c82
MS		 318 struct work_struct flush_light;
319 struct work_struct flush_normal;
320 struct work_struct flush_heavy;
1da177e4 321 struct work_struct restart_task;
c4028958 322 struct delayed_work ah_reap_task;
b63b70d8 323 struct delayed_work neigh_reap_task;
1da177e4 324 struct ib_device *ca;
2337f809
RD		 325 u8 port;
326 u16 pkey;
327 u16 pkey_index;
328 struct ib_pd *pd;
329 struct ib_mr *mr;
f56bcd80
EC		 330 struct ib_cq *recv_cq;
331 struct ib_cq *send_cq;
2337f809
RD		 332 struct ib_qp *qp;
333 u32 qkey;
1da177e4
LT		 334
335 union ib_gid local_gid;
2337f809 336 u16 local_lid;
1da177e4
LT		 337
338 unsigned int admin_mtu;
339 unsigned int mcast_mtu;
bc7b3a36 340 unsigned int max_ib_mtu;
1da177e4 341
1993d683 342 struct ipoib_rx_buf *rx_ring;
1da177e4 343
1993d683 344 struct ipoib_tx_buf *tx_ring;
2337f809
RD		 345 unsigned tx_head;
346 unsigned tx_tail;
7143740d 347 struct ib_sge tx_sge[MAX_SKB_FRAGS + 1];
1993d683 348 struct ib_send_wr tx_wr;
2337f809 349 unsigned tx_outstanding;
f56bcd80 350 struct ib_wc send_wc[MAX_SEND_CQE];
1da177e4 351
bc7b3a36
SM		 352 struct ib_recv_wr rx_wr;
353 struct ib_sge rx_sge[IPOIB_UD_RX_SG];
354
1da177e4
LT		 355 struct ib_wc ibwc[IPOIB_NUM_WC];
356
357 struct list_head dead_ahs;
358
359 struct ib_event_handler event_handler;
360
1da177e4
LT		 361 struct net_device *parent;
362 struct list_head child_intfs;
363 struct list_head list;
9baa0b03 364 int child_type;
1da177e4 365
839fcaba
MT		 366#ifdef CONFIG_INFINIBAND_IPOIB_CM
367 struct ipoib_cm_dev_priv cm;
368#endif
369
1da177e4
LT		 370#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
371 struct list_head fs_list;
372 struct dentry *mcg_dentry;
1732b0ef 373 struct dentry *path_dentry;
1da177e4 374#endif
40ca1988 375 int hca_caps;
28d52b3c 376 struct ipoib_ethtool_st ethtool;
57ce41d1 377 struct timer_list poll_timer;
1da177e4
LT		 378};
379
380struct ipoib_ah {
381 struct net_device *dev;
2337f809 382 struct ib_ah *ah;
1da177e4 383 struct list_head list;
2337f809
RD		 384 struct kref ref;
385 unsigned last_send;
1da177e4
LT		 386};
387
388struct ipoib_path {
389 struct net_device *dev;
390 struct ib_sa_path_rec pathrec;
391 struct ipoib_ah *ah;
392 struct sk_buff_head queue;
393
394 struct list_head neigh_list;
395
2337f809 396 int query_id;
1da177e4
LT		 397 struct ib_sa_query *query;
398 struct completion done;
399
2337f809 400 struct rb_node rb_node;
1da177e4 401 struct list_head list;
ee1e2c82 402 int valid;
1da177e4
LT		 403};
404
405struct ipoib_neigh {
406 struct ipoib_ah *ah;
839fcaba
MT		 407#ifdef CONFIG_INFINIBAND_IPOIB_CM
408 struct ipoib_cm_tx *cm;
409#endif
b63b70d8 410 u8 daddr[INFINIBAND_ALEN];
1da177e4
LT		 411 struct sk_buff_head queue;
412
732a2170 413 struct net_device *dev;
1da177e4
LT		 414
415 struct list_head list;
b63b70d8
SP		 416 struct ipoib_neigh __rcu *hnext;
417 struct rcu_head rcu;
418 atomic_t refcnt;
419 unsigned long alive;
1da177e4
LT		 420};
421
bc7b3a36
SM		 422#define IPOIB_UD_MTU(ib_mtu) (ib_mtu - IPOIB_ENCAP_LEN)
423#define IPOIB_UD_BUF_SIZE(ib_mtu) (ib_mtu + IB_GRH_BYTES)
424
425static inline int ipoib_ud_need_sg(unsigned int ib_mtu)
426{
427 return IPOIB_UD_BUF_SIZE(ib_mtu) > PAGE_SIZE;
428}
429
b63b70d8
SP		 430void ipoib_neigh_dtor(struct ipoib_neigh *neigh);
431static inline void ipoib_neigh_put(struct ipoib_neigh *neigh)
1da177e4 432{
b63b70d8
SP		 433 if (atomic_dec_and_test(&neigh->refcnt))
434 ipoib_neigh_dtor(neigh);
1da177e4 435}
b63b70d8
SP		 436struct ipoib_neigh *ipoib_neigh_get(struct net_device *dev, u8 *daddr);
437struct ipoib_neigh *ipoib_neigh_alloc(u8 *daddr,
732a2170 438 struct net_device *dev);
b63b70d8
SP		 439void ipoib_neigh_free(struct ipoib_neigh *neigh);
440void ipoib_del_neighs_by_gid(struct net_device *dev, u8 *gid);
d2e0655e 441
1da177e4
LT		 442extern struct workqueue_struct *ipoib_workqueue;
443
444/* functions */
445
bea3348e 446int ipoib_poll(struct napi_struct *napi, int budget);
1da177e4 447void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr);
57ce41d1 448void ipoib_send_comp_handler(struct ib_cq *cq, void *dev_ptr);
1da177e4
LT		 449
450struct ipoib_ah *ipoib_create_ah(struct net_device *dev,
451 struct ib_pd *pd, struct ib_ah_attr *attr);
452void ipoib_free_ah(struct kref *kref);
453static inline void ipoib_put_ah(struct ipoib_ah *ah)
454{
455 kref_put(&ah->ref, ipoib_free_ah);
456}
8ae5a8a2 457int ipoib_open(struct net_device *dev);
1da177e4 458int ipoib_add_pkey_attr(struct net_device *dev);
335a64a5 459int ipoib_add_umcast_attr(struct net_device *dev);
1da177e4
LT		 460
461void ipoib_send(struct net_device *dev, struct sk_buff *skb,
462 struct ipoib_ah *address, u32 qpn);
c4028958 463void ipoib_reap_ah(struct work_struct *work);
1da177e4 464
ee1e2c82 465void ipoib_mark_paths_invalid(struct net_device *dev);
1da177e4
LT		 466void ipoib_flush_paths(struct net_device *dev);
467struct ipoib_dev_priv *ipoib_intf_alloc(const char *format);
468
469int ipoib_ib_dev_init(struct net_device *dev, struct ib_device *ca, int port);
ee1e2c82
MS		 470void ipoib_ib_dev_flush_light(struct work_struct *work);
471void ipoib_ib_dev_flush_normal(struct work_struct *work);
472void ipoib_ib_dev_flush_heavy(struct work_struct *work);
26bbf13c 473void ipoib_pkey_event(struct work_struct *work);
1da177e4
LT		 474void ipoib_ib_dev_cleanup(struct net_device *dev);
475
476int ipoib_ib_dev_open(struct net_device *dev);
477int ipoib_ib_dev_up(struct net_device *dev);
0b3ea082 478int ipoib_ib_dev_down(struct net_device *dev, int flush);
26bbf13c 479int ipoib_ib_dev_stop(struct net_device *dev, int flush);
1da177e4
LT		 480
481int ipoib_dev_init(struct net_device *dev, struct ib_device *ca, int port);
482void ipoib_dev_cleanup(struct net_device *dev);
483
c4028958 484void ipoib_mcast_join_task(struct work_struct *work);
e8224e4b 485void ipoib_mcast_carrier_on_task(struct work_struct *work);
b63b70d8 486void ipoib_mcast_send(struct net_device *dev, u8 *daddr, struct sk_buff *skb);
1da177e4 487
c4028958 488void ipoib_mcast_restart_task(struct work_struct *work);
1da177e4 489int ipoib_mcast_start_thread(struct net_device *dev);
8d2cae06 490int ipoib_mcast_stop_thread(struct net_device *dev, int flush);
1da177e4
LT		 491
492void ipoib_mcast_dev_down(struct net_device *dev);
493void ipoib_mcast_dev_flush(struct net_device *dev);
494
8ae5a8a2 495#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
1da177e4 496struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct net_device *dev);
1da177e4
LT		 497int ipoib_mcast_iter_next(struct ipoib_mcast_iter *iter);
498void ipoib_mcast_iter_read(struct ipoib_mcast_iter *iter,
499 union ib_gid *gid,
500 unsigned long *created,
501 unsigned int *queuelen,
502 unsigned int *complete,
503 unsigned int *send_only);
1732b0ef
RD		 504
505struct ipoib_path_iter *ipoib_path_iter_init(struct net_device *dev);
506int ipoib_path_iter_next(struct ipoib_path_iter *iter);
507void ipoib_path_iter_read(struct ipoib_path_iter *iter,
508 struct ipoib_path *path);
8ae5a8a2 509#endif
1da177e4
LT		 510
511int ipoib_mcast_attach(struct net_device *dev, u16 mlid,
d0de1362 512 union ib_gid *mgid, int set_qkey);
1da177e4 513
5b6810e0 514int ipoib_init_qp(struct net_device *dev);
1da177e4
LT		 515int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca);
516void ipoib_transport_dev_cleanup(struct net_device *dev);
517
518void ipoib_event(struct ib_event_handler *handler,
519 struct ib_event *record);
520
521int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey);
522int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey);
523
9baa0b03
OG		 524int __ipoib_vlan_add(struct ipoib_dev_priv *ppriv, struct ipoib_dev_priv *priv,
525 u16 pkey, int child_type);
526
527int __init ipoib_netlink_init(void);
528void __exit ipoib_netlink_fini(void);
529
862096a8
OG		 530void ipoib_set_umcast(struct net_device *ndev, int umcast_val);
531int ipoib_set_mode(struct net_device *dev, const char *buf);
532
9baa0b03
OG		 533void ipoib_setup(struct net_device *dev);
534
c4028958 535void ipoib_pkey_poll(struct work_struct *work);
1da177e4 536int ipoib_pkey_dev_delay_open(struct net_device *dev);
2dfbfc37 537void ipoib_drain_cq(struct net_device *dev);
1da177e4 538
82c24c18 539void ipoib_set_ethtool_ops(struct net_device *dev);
83bb63f6 540int ipoib_set_dev_features(struct ipoib_dev_priv *priv, struct ib_device *hca);
82c24c18 541
2337f809
RD		 542#define IPOIB_FLAGS_RC 0x80
543#define IPOIB_FLAGS_UC 0x40
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MT		 544
545/* We don't support UC connections at the moment */
546#define IPOIB_CM_SUPPORTED(ha) (ha[0] & (IPOIB_FLAGS_RC))
547
71d9c5f9
RD		 548#ifdef CONFIG_INFINIBAND_IPOIB_CM
549
68e995a2
PS		 550extern int ipoib_max_conn_qp;
551
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MT		 552static inline int ipoib_cm_admin_enabled(struct net_device *dev)
553{
554 struct ipoib_dev_priv *priv = netdev_priv(dev);
555 return IPOIB_CM_SUPPORTED(dev->dev_addr) &&
556 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
557}
558
b63b70d8 559static inline int ipoib_cm_enabled(struct net_device *dev, u8 *hwaddr)
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MT		 560{
561 struct ipoib_dev_priv *priv = netdev_priv(dev);
b63b70d8 562 return IPOIB_CM_SUPPORTED(hwaddr) &&
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MT		 563 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
564}
565
566static inline int ipoib_cm_up(struct ipoib_neigh *neigh)
567
568{
569 return test_bit(IPOIB_FLAG_OPER_UP, &neigh->cm->flags);
570}
571
572static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh)
573{
574 return neigh->cm;
575}
576
577static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx)
578{
579 neigh->cm = tx;
580}
581
68e995a2
PS		 582static inline int ipoib_cm_has_srq(struct net_device *dev)
583{
584 struct ipoib_dev_priv *priv = netdev_priv(dev);
585 return !!priv->cm.srq;
586}
587
586a6934
PS		 588static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev)
589{
590 struct ipoib_dev_priv *priv = netdev_priv(dev);
591 return priv->cm.max_cm_mtu;
592}
593
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MT		 594void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx);
595int ipoib_cm_dev_open(struct net_device *dev);
596void ipoib_cm_dev_stop(struct net_device *dev);
597int ipoib_cm_dev_init(struct net_device *dev);
598int ipoib_cm_add_mode_attr(struct net_device *dev);
599void ipoib_cm_dev_cleanup(struct net_device *dev);
600struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path,
601 struct ipoib_neigh *neigh);
602void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx);
2337f809 603void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb,
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MT		 604 unsigned int mtu);
605void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc);
1b524963 606void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc);
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MT		 607#else
608
609struct ipoib_cm_tx;
610
68e995a2
PS		 611#define ipoib_max_conn_qp 0
612
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MT		 613static inline int ipoib_cm_admin_enabled(struct net_device *dev)
614{
615 return 0;
616}
b63b70d8 617static inline int ipoib_cm_enabled(struct net_device *dev, u8 *hwaddr)
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MT		 618
619{
620 return 0;
621}
622
623static inline int ipoib_cm_up(struct ipoib_neigh *neigh)
624
625{
626 return 0;
627}
628
629static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh)
630{
631 return NULL;
632}
633
634static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx)
635{
636}
637
68e995a2
PS		 638static inline int ipoib_cm_has_srq(struct net_device *dev)
639{
640 return 0;
641}
642
586a6934
PS		 643static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev)
644{
645 return 0;
646}
647
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MT		 648static inline
649void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx)
650{
651 return;
652}
653
654static inline
655int ipoib_cm_dev_open(struct net_device *dev)
656{
657 return 0;
658}
659
660static inline
661void ipoib_cm_dev_stop(struct net_device *dev)
662{
663 return;
664}
665
666static inline
667int ipoib_cm_dev_init(struct net_device *dev)
668{
669 return -ENOSYS;
670}
671
672static inline
673void ipoib_cm_dev_cleanup(struct net_device *dev)
674{
675 return;
676}
677
678static inline
679struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path,
680 struct ipoib_neigh *neigh)
681{
682 return NULL;
683}
684
685static inline
686void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx)
687{
688 return;
689}
690
691static inline
692int ipoib_cm_add_mode_attr(struct net_device *dev)
693{
694 return 0;
695}
696
2337f809 697static inline void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb,
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MT		 698 unsigned int mtu)
699{
700 dev_kfree_skb_any(skb);
701}
702
703static inline void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
704{
705}
706
1b524963
MT		 707static inline void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc)
708{
709}
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MT		 710#endif
711
1da177e4 712#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
1732b0ef
RD		 713void ipoib_create_debug_files(struct net_device *dev);
714void ipoib_delete_debug_files(struct net_device *dev);
1da177e4
LT		 715int ipoib_register_debugfs(void);
716void ipoib_unregister_debugfs(void);
717#else
1732b0ef
RD		 718static inline void ipoib_create_debug_files(struct net_device *dev) { }
719static inline void ipoib_delete_debug_files(struct net_device *dev) { }
1da177e4
LT		 720static inline int ipoib_register_debugfs(void) { return 0; }
721static inline void ipoib_unregister_debugfs(void) { }
722#endif
723
1da177e4
LT		 724#define ipoib_printk(level, priv, format, arg...) \
725 printk(level "%s: " format, ((struct ipoib_dev_priv *) priv)->dev->name , ## arg)
726#define ipoib_warn(priv, format, arg...) \
727 ipoib_printk(KERN_WARNING, priv, format , ## arg)
728
0f485251
SM		 729extern int ipoib_sendq_size;
730extern int ipoib_recvq_size;
1da177e4 731
c1a0b23b
MT		 732extern struct ib_sa_client ipoib_sa_client;
733
1da177e4
LT		 734#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
735extern int ipoib_debug_level;
736
737#define ipoib_dbg(priv, format, arg...) \
2337f809 738 do { \
1da177e4
LT		 739 if (ipoib_debug_level > 0) \
740 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
741 } while (0)
742#define ipoib_dbg_mcast(priv, format, arg...) \
2337f809 743 do { \
1da177e4
LT		 744 if (mcast_debug_level > 0) \
745 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
746 } while (0)
747#else /* CONFIG_INFINIBAND_IPOIB_DEBUG */
748#define ipoib_dbg(priv, format, arg...) \
749 do { (void) (priv); } while (0)
750#define ipoib_dbg_mcast(priv, format, arg...) \
751 do { (void) (priv); } while (0)
752#endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */
753
754#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG_DATA
755#define ipoib_dbg_data(priv, format, arg...) \
2337f809 756 do { \
1da177e4
LT		 757 if (data_debug_level > 0) \
758 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
759 } while (0)
760#else /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
761#define ipoib_dbg_data(priv, format, arg...) \
762 do { (void) (priv); } while (0)
763#endif /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
764
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MT		 765#define IPOIB_QPN(ha) (be32_to_cpup((__be32 *) ha) & 0xffffff)
766
4b48680b
YB		 767extern const char ipoib_driver_version[];
768
1da177e4 769#endif /* _IPOIB_H */
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