]> git.proxmox.com Git - mirror_ubuntu-artful-kernel.git/blame - drivers/infiniband/ulp/ipoib/ipoib.h
projects / mirror_ubuntu-artful-kernel.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
IB/cma: Accept connection without a valid netdev on RoCE
[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,
2866196f 83 IPOIB_MAX_MCAST_QUEUE = 64,
2337f809
RD		 84
85 IPOIB_FLAG_OPER_UP = 0,
86 IPOIB_FLAG_INITIALIZED = 1,
87 IPOIB_FLAG_ADMIN_UP = 2,
88 IPOIB_PKEY_ASSIGNED = 3,
2337f809 89 IPOIB_FLAG_SUBINTERFACE = 5,
2337f809 90 IPOIB_STOP_REAPER = 7,
2337f809 91 IPOIB_FLAG_ADMIN_CM = 9,
1b524963 92 IPOIB_FLAG_UMCAST = 10,
b63b70d8
SP		 93 IPOIB_STOP_NEIGH_GC = 11,
94 IPOIB_NEIGH_TBL_FLUSH = 12,
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,
69911416
DL		 100 /*
101 * For IPOIB_MCAST_FLAG_BUSY
102 * When set, in flight join and mcast->mc is unreliable
103 * When clear and mcast->mc IS_ERR_OR_NULL, need to restart or
104 * haven't started yet
105 * When clear and mcast->mc is valid pointer, join was successful
106 */
107 IPOIB_MCAST_FLAG_BUSY = 2,
1da177e4 108 IPOIB_MCAST_FLAG_ATTACHED = 3,
f56bcd80
EC		 109
110 MAX_SEND_CQE = 16,
f89271da 111 IPOIB_CM_COPYBREAK = 256,
9baa0b03
OG		 112
113 IPOIB_NON_CHILD = 0,
114 IPOIB_LEGACY_CHILD = 1,
115 IPOIB_RTNL_CHILD = 2,
1da177e4
LT		 116};
117
839fcaba
MT		 118#define IPOIB_OP_RECV (1ul << 31)
119#ifdef CONFIG_INFINIBAND_IPOIB_CM
1b524963 120#define IPOIB_OP_CM (1ul << 30)
839fcaba 121#else
1b524963 122#define IPOIB_OP_CM (0)
839fcaba
MT		 123#endif
124
9d1ad66e
SP		 125#define IPOIB_QPN_MASK ((__force u32) cpu_to_be32(0xFFFFFF))
126
1da177e4
LT		 127/* structs */
128
129struct ipoib_header {
97f52eb4
SH		 130 __be16 proto;
131 u16 reserved;
1da177e4
LT		 132};
133
936d7de3
RD		 134struct ipoib_cb {
135 struct qdisc_skb_cb qdisc_cb;
136 u8 hwaddr[INFINIBAND_ALEN];
1da177e4
LT		 137};
138
b49fe362
ED		 139static inline struct ipoib_cb *ipoib_skb_cb(const struct sk_buff *skb)
140{
141 BUILD_BUG_ON(sizeof(skb->cb) < sizeof(struct ipoib_cb));
142 return (struct ipoib_cb *)skb->cb;
143}
144
81668838
SH		 145/* Used for all multicast joins (broadcast, IPv4 mcast and IPv6 mcast) */
146struct ipoib_mcast {
147 struct ib_sa_mcmember_rec mcmember;
148 struct ib_sa_multicast *mc;
2337f809 149 struct ipoib_ah *ah;
81668838
SH		 150
151 struct rb_node rb_node;
152 struct list_head list;
153
154 unsigned long created;
155 unsigned long backoff;
69911416 156 unsigned long delay_until;
81668838
SH		 157
158 unsigned long flags;
159 unsigned char logcount;
160
161 struct list_head neigh_list;
162
163 struct sk_buff_head pkt_queue;
164
165 struct net_device *dev;
a9c8ba58 166 struct completion done;
81668838 167};
1da177e4 168
1993d683
RD		 169struct ipoib_rx_buf {
170 struct sk_buff *skb;
bc7b3a36 171 u64 mapping[IPOIB_UD_RX_SG];
1993d683
RD		 172};
173
174struct ipoib_tx_buf {
1da177e4 175 struct sk_buff *skb;
7143740d 176 u64 mapping[MAX_SKB_FRAGS + 1];
1da177e4
LT		 177};
178
e112373f
EC		 179struct ipoib_cm_tx_buf {
180 struct sk_buff *skb;
181 u64 mapping;
182};
183
839fcaba
MT		 184struct ib_cm_id;
185
186struct ipoib_cm_data {
187 __be32 qpn; /* High byte MUST be ignored on receive */
188 __be32 mtu;
189};
190
518b1646
MT		 191/*
192 * Quoting 10.3.1 Queue Pair and EE Context States:
193 *
194 * Note, for QPs that are associated with an SRQ, the Consumer should take the
195 * QP through the Error State before invoking a Destroy QP or a Modify QP to the
196 * Reset State. The Consumer may invoke the Destroy QP without first performing
197 * a Modify QP to the Error State and waiting for the Affiliated Asynchronous
198 * Last WQE Reached Event. However, if the Consumer does not wait for the
199 * Affiliated Asynchronous Last WQE Reached Event, then WQE and Data Segment
200 * leakage may occur. Therefore, it is good programming practice to tear down a
201 * QP that is associated with an SRQ by using the following process:
202 *
203 * - Put the QP in the Error State
204 * - Wait for the Affiliated Asynchronous Last WQE Reached Event;
205 * - either:
206 * drain the CQ by invoking the Poll CQ verb and either wait for CQ
207 * to be empty or the number of Poll CQ operations has exceeded
208 * CQ capacity size;
209 * - or
210 * post another WR that completes on the same CQ and wait for this
211 * WR to return as a WC;
212 * - and then invoke a Destroy QP or Reset QP.
213 *
214 * We use the second option and wait for a completion on the
ec56dc0b 215 * same CQ before destroying QPs attached to our SRQ.
518b1646
MT		 216 */
217
218enum ipoib_cm_state {
219 IPOIB_CM_RX_LIVE,
220 IPOIB_CM_RX_ERROR, /* Ignored by stale task */
221 IPOIB_CM_RX_FLUSH /* Last WQE Reached event observed */
222};
223
839fcaba 224struct ipoib_cm_rx {
2337f809
RD		 225 struct ib_cm_id *id;
226 struct ib_qp *qp;
68e995a2 227 struct ipoib_cm_rx_buf *rx_ring;
2337f809
RD		 228 struct list_head list;
229 struct net_device *dev;
230 unsigned long jiffies;
231 enum ipoib_cm_state state;
68e995a2 232 int recv_count;
839fcaba
MT		 233};
234
235struct ipoib_cm_tx {
2337f809
RD		 236 struct ib_cm_id *id;
237 struct ib_qp *qp;
839fcaba
MT		 238 struct list_head list;
239 struct net_device *dev;
240 struct ipoib_neigh *neigh;
241 struct ipoib_path *path;
c4268778 242 struct ipoib_tx_buf *tx_ring;
2337f809
RD		 243 unsigned tx_head;
244 unsigned tx_tail;
245 unsigned long flags;
246 u32 mtu;
839fcaba
MT		 247};
248
249struct ipoib_cm_rx_buf {
250 struct sk_buff *skb;
251 u64 mapping[IPOIB_CM_RX_SG];
252};
253
254struct ipoib_cm_dev_priv {
2337f809 255 struct ib_srq *srq;
839fcaba 256 struct ipoib_cm_rx_buf *srq_ring;
2337f809
RD		 257 struct ib_cm_id *id;
258 struct list_head passive_ids; /* state: LIVE */
259 struct list_head rx_error_list; /* state: ERROR */
260 struct list_head rx_flush_list; /* state: FLUSH, drain not started */
261 struct list_head rx_drain_list; /* state: FLUSH, drain started */
262 struct list_head rx_reap_list; /* state: FLUSH, drain done */
839fcaba
MT		 263 struct work_struct start_task;
264 struct work_struct reap_task;
265 struct work_struct skb_task;
518b1646 266 struct work_struct rx_reap_task;
839fcaba
MT		 267 struct delayed_work stale_task;
268 struct sk_buff_head skb_queue;
2337f809
RD		 269 struct list_head start_list;
270 struct list_head reap_list;
271 struct ib_wc ibwc[IPOIB_NUM_WC];
272 struct ib_sge rx_sge[IPOIB_CM_RX_SG];
839fcaba 273 struct ib_recv_wr rx_wr;
68e995a2 274 int nonsrq_conn_qp;
586a6934
PS		 275 int max_cm_mtu;
276 int num_frags;
839fcaba
MT		 277};
278
28d52b3c
EC		 279struct ipoib_ethtool_st {
280 u16 coalesce_usecs;
281 u16 max_coalesced_frames;
282};
283
66172c09
SP		 284struct ipoib_neigh_table;
285
b63b70d8 286struct ipoib_neigh_hash {
66172c09 287 struct ipoib_neigh_table *ntbl;
b63b70d8
SP		 288 struct ipoib_neigh __rcu **buckets;
289 struct rcu_head rcu;
290 u32 mask;
291 u32 size;
292};
293
294struct ipoib_neigh_table {
295 struct ipoib_neigh_hash __rcu *htbl;
b63b70d8
SP		 296 atomic_t entries;
297 struct completion flushed;
66172c09 298 struct completion deleted;
b63b70d8
SP		 299};
300
2c010730
ES		 301struct ipoib_qp_state_validate {
302 struct work_struct work;
303 struct ipoib_dev_priv *priv;
304};
305
1da177e4 306/*
943c246e
RD		 307 * Device private locking: network stack tx_lock protects members used
308 * in TX fast path, lock protects everything else. lock nests inside
309 * of tx_lock (ie tx_lock must be acquired first if needed).
1da177e4
LT		 310 */
311struct ipoib_dev_priv {
312 spinlock_t lock;
313
314 struct net_device *dev;
315
bea3348e
SH		 316 struct napi_struct napi;
317
1da177e4
LT		 318 unsigned long flags;
319
f47944cc 320 struct rw_semaphore vlan_rwsem;
1da177e4
LT		 321
322 struct rb_root path_tree;
323 struct list_head path_list;
324
b63b70d8
SP		 325 struct ipoib_neigh_table ntbl;
326
1da177e4
LT		 327 struct ipoib_mcast *broadcast;
328 struct list_head multicast_list;
329 struct rb_root multicast_tree;
330
0b39578b 331 struct workqueue_struct *wq;
c4028958 332 struct delayed_work mcast_task;
e8224e4b 333 struct work_struct carrier_on_task;
ee1e2c82
MS		 334 struct work_struct flush_light;
335 struct work_struct flush_normal;
336 struct work_struct flush_heavy;
1da177e4 337 struct work_struct restart_task;
c4028958 338 struct delayed_work ah_reap_task;
b63b70d8 339 struct delayed_work neigh_reap_task;
1da177e4 340 struct ib_device *ca;
2337f809
RD		 341 u8 port;
342 u16 pkey;
343 u16 pkey_index;
344 struct ib_pd *pd;
f56bcd80
EC		 345 struct ib_cq *recv_cq;
346 struct ib_cq *send_cq;
2337f809
RD		 347 struct ib_qp *qp;
348 u32 qkey;
1da177e4
LT		 349
350 union ib_gid local_gid;
2337f809 351 u16 local_lid;
1da177e4
LT		 352
353 unsigned int admin_mtu;
354 unsigned int mcast_mtu;
bc7b3a36 355 unsigned int max_ib_mtu;
1da177e4 356
1993d683 357 struct ipoib_rx_buf *rx_ring;
1da177e4 358
1993d683 359 struct ipoib_tx_buf *tx_ring;
2337f809
RD		 360 unsigned tx_head;
361 unsigned tx_tail;
7143740d 362 struct ib_sge tx_sge[MAX_SKB_FRAGS + 1];
1993d683 363 struct ib_send_wr tx_wr;
2337f809 364 unsigned tx_outstanding;
f56bcd80 365 struct ib_wc send_wc[MAX_SEND_CQE];
1da177e4 366
bc7b3a36
SM		 367 struct ib_recv_wr rx_wr;
368 struct ib_sge rx_sge[IPOIB_UD_RX_SG];
369
1da177e4
LT		 370 struct ib_wc ibwc[IPOIB_NUM_WC];
371
372 struct list_head dead_ahs;
373
374 struct ib_event_handler event_handler;
375
1da177e4
LT		 376 struct net_device *parent;
377 struct list_head child_intfs;
378 struct list_head list;
9baa0b03 379 int child_type;
1da177e4 380
839fcaba
MT		 381#ifdef CONFIG_INFINIBAND_IPOIB_CM
382 struct ipoib_cm_dev_priv cm;
383#endif
384
1da177e4
LT		 385#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
386 struct list_head fs_list;
387 struct dentry *mcg_dentry;
1732b0ef 388 struct dentry *path_dentry;
1da177e4 389#endif
40ca1988 390 int hca_caps;
28d52b3c 391 struct ipoib_ethtool_st ethtool;
57ce41d1 392 struct timer_list poll_timer;
1da177e4
LT		 393};
394
395struct ipoib_ah {
396 struct net_device *dev;
2337f809 397 struct ib_ah *ah;
1da177e4 398 struct list_head list;
2337f809
RD		 399 struct kref ref;
400 unsigned last_send;
1da177e4
LT		 401};
402
403struct ipoib_path {
404 struct net_device *dev;
405 struct ib_sa_path_rec pathrec;
406 struct ipoib_ah *ah;
407 struct sk_buff_head queue;
408
409 struct list_head neigh_list;
410
2337f809 411 int query_id;
1da177e4
LT		 412 struct ib_sa_query *query;
413 struct completion done;
414
2337f809 415 struct rb_node rb_node;
1da177e4 416 struct list_head list;
ee1e2c82 417 int valid;
1da177e4
LT		 418};
419
420struct ipoib_neigh {
421 struct ipoib_ah *ah;
839fcaba
MT		 422#ifdef CONFIG_INFINIBAND_IPOIB_CM
423 struct ipoib_cm_tx *cm;
424#endif
b63b70d8 425 u8 daddr[INFINIBAND_ALEN];
1da177e4
LT		 426 struct sk_buff_head queue;
427
732a2170 428 struct net_device *dev;
1da177e4
LT		 429
430 struct list_head list;
b63b70d8
SP		 431 struct ipoib_neigh __rcu *hnext;
432 struct rcu_head rcu;
433 atomic_t refcnt;
434 unsigned long alive;
1da177e4
LT		 435};
436
bc7b3a36
SM		 437#define IPOIB_UD_MTU(ib_mtu) (ib_mtu - IPOIB_ENCAP_LEN)
438#define IPOIB_UD_BUF_SIZE(ib_mtu) (ib_mtu + IB_GRH_BYTES)
439
b63b70d8
SP		 440void ipoib_neigh_dtor(struct ipoib_neigh *neigh);
441static inline void ipoib_neigh_put(struct ipoib_neigh *neigh)
1da177e4 442{
b63b70d8
SP		 443 if (atomic_dec_and_test(&neigh->refcnt))
444 ipoib_neigh_dtor(neigh);
1da177e4 445}
b63b70d8
SP		 446struct ipoib_neigh *ipoib_neigh_get(struct net_device *dev, u8 *daddr);
447struct ipoib_neigh *ipoib_neigh_alloc(u8 *daddr,
732a2170 448 struct net_device *dev);
b63b70d8
SP		 449void ipoib_neigh_free(struct ipoib_neigh *neigh);
450void ipoib_del_neighs_by_gid(struct net_device *dev, u8 *gid);
d2e0655e 451
1da177e4
LT		 452extern struct workqueue_struct *ipoib_workqueue;
453
454/* functions */
455
bea3348e 456int ipoib_poll(struct napi_struct *napi, int budget);
1da177e4 457void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr);
57ce41d1 458void ipoib_send_comp_handler(struct ib_cq *cq, void *dev_ptr);
1da177e4
LT		 459
460struct ipoib_ah *ipoib_create_ah(struct net_device *dev,
461 struct ib_pd *pd, struct ib_ah_attr *attr);
462void ipoib_free_ah(struct kref *kref);
463static inline void ipoib_put_ah(struct ipoib_ah *ah)
464{
465 kref_put(&ah->ref, ipoib_free_ah);
466}
8ae5a8a2 467int ipoib_open(struct net_device *dev);
1da177e4 468int ipoib_add_pkey_attr(struct net_device *dev);
335a64a5 469int ipoib_add_umcast_attr(struct net_device *dev);
1da177e4
LT		 470
471void ipoib_send(struct net_device *dev, struct sk_buff *skb,
472 struct ipoib_ah *address, u32 qpn);
c4028958 473void ipoib_reap_ah(struct work_struct *work);
1da177e4 474
ee1e2c82 475void ipoib_mark_paths_invalid(struct net_device *dev);
1da177e4
LT		 476void ipoib_flush_paths(struct net_device *dev);
477struct ipoib_dev_priv *ipoib_intf_alloc(const char *format);
478
479int ipoib_ib_dev_init(struct net_device *dev, struct ib_device *ca, int port);
ee1e2c82
MS		 480void ipoib_ib_dev_flush_light(struct work_struct *work);
481void ipoib_ib_dev_flush_normal(struct work_struct *work);
482void ipoib_ib_dev_flush_heavy(struct work_struct *work);
26bbf13c 483void ipoib_pkey_event(struct work_struct *work);
1da177e4
LT		 484void ipoib_ib_dev_cleanup(struct net_device *dev);
485
efc82eee 486int ipoib_ib_dev_open(struct net_device *dev);
1da177e4 487int ipoib_ib_dev_up(struct net_device *dev);
efc82eee
DL		 488int ipoib_ib_dev_down(struct net_device *dev);
489int ipoib_ib_dev_stop(struct net_device *dev);
db84f880 490void ipoib_pkey_dev_check_presence(struct net_device *dev);
1da177e4
LT		 491
492int ipoib_dev_init(struct net_device *dev, struct ib_device *ca, int port);
493void ipoib_dev_cleanup(struct net_device *dev);
494
c4028958 495void ipoib_mcast_join_task(struct work_struct *work);
e8224e4b 496void ipoib_mcast_carrier_on_task(struct work_struct *work);
b63b70d8 497void ipoib_mcast_send(struct net_device *dev, u8 *daddr, struct sk_buff *skb);
1da177e4 498
c4028958 499void ipoib_mcast_restart_task(struct work_struct *work);
1da177e4 500int ipoib_mcast_start_thread(struct net_device *dev);
efc82eee 501int ipoib_mcast_stop_thread(struct net_device *dev);
1da177e4
LT		 502
503void ipoib_mcast_dev_down(struct net_device *dev);
504void ipoib_mcast_dev_flush(struct net_device *dev);
505
c4268778
YS		 506int ipoib_dma_map_tx(struct ib_device *ca, struct ipoib_tx_buf *tx_req);
507void ipoib_dma_unmap_tx(struct ipoib_dev_priv *priv,
508 struct ipoib_tx_buf *tx_req);
509
510static inline void ipoib_build_sge(struct ipoib_dev_priv *priv,
511 struct ipoib_tx_buf *tx_req)
512{
513 int i, off;
514 struct sk_buff *skb = tx_req->skb;
515 skb_frag_t *frags = skb_shinfo(skb)->frags;
516 int nr_frags = skb_shinfo(skb)->nr_frags;
517 u64 *mapping = tx_req->mapping;
518
519 if (skb_headlen(skb)) {
520 priv->tx_sge[0].addr = mapping[0];
521 priv->tx_sge[0].length = skb_headlen(skb);
522 off = 1;
523 } else
524 off = 0;
525
526 for (i = 0; i < nr_frags; ++i) {
527 priv->tx_sge[i + off].addr = mapping[i + off];
528 priv->tx_sge[i + off].length = skb_frag_size(&frags[i]);
529 }
530 priv->tx_wr.num_sge = nr_frags + off;
531}
532
8ae5a8a2 533#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
1da177e4 534struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct net_device *dev);
1da177e4
LT		 535int ipoib_mcast_iter_next(struct ipoib_mcast_iter *iter);
536void ipoib_mcast_iter_read(struct ipoib_mcast_iter *iter,
537 union ib_gid *gid,
538 unsigned long *created,
539 unsigned int *queuelen,
540 unsigned int *complete,
541 unsigned int *send_only);
1732b0ef
RD		 542
543struct ipoib_path_iter *ipoib_path_iter_init(struct net_device *dev);
544int ipoib_path_iter_next(struct ipoib_path_iter *iter);
545void ipoib_path_iter_read(struct ipoib_path_iter *iter,
546 struct ipoib_path *path);
8ae5a8a2 547#endif
1da177e4
LT		 548
549int ipoib_mcast_attach(struct net_device *dev, u16 mlid,
d0de1362 550 union ib_gid *mgid, int set_qkey);
bd99b2e0
CL		 551int ipoib_mcast_leave(struct net_device *dev, struct ipoib_mcast *mcast);
552struct ipoib_mcast *__ipoib_mcast_find(struct net_device *dev, void *mgid);
1da177e4 553
5b6810e0 554int ipoib_init_qp(struct net_device *dev);
1da177e4
LT		 555int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca);
556void ipoib_transport_dev_cleanup(struct net_device *dev);
557
558void ipoib_event(struct ib_event_handler *handler,
559 struct ib_event *record);
560
561int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey);
562int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey);
563
9baa0b03
OG		 564int __ipoib_vlan_add(struct ipoib_dev_priv *ppriv, struct ipoib_dev_priv *priv,
565 u16 pkey, int child_type);
566
567int __init ipoib_netlink_init(void);
568void __exit ipoib_netlink_fini(void);
569
862096a8
OG		 570void ipoib_set_umcast(struct net_device *ndev, int umcast_val);
571int ipoib_set_mode(struct net_device *dev, const char *buf);
572
9baa0b03
OG		 573void ipoib_setup(struct net_device *dev);
574
db84f880 575void ipoib_pkey_open(struct ipoib_dev_priv *priv);
2dfbfc37 576void ipoib_drain_cq(struct net_device *dev);
1da177e4 577
82c24c18 578void ipoib_set_ethtool_ops(struct net_device *dev);
83bb63f6 579int ipoib_set_dev_features(struct ipoib_dev_priv *priv, struct ib_device *hca);
82c24c18 580
2337f809
RD		 581#define IPOIB_FLAGS_RC 0x80
582#define IPOIB_FLAGS_UC 0x40
839fcaba
MT		 583
584/* We don't support UC connections at the moment */
585#define IPOIB_CM_SUPPORTED(ha) (ha[0] & (IPOIB_FLAGS_RC))
586
71d9c5f9
RD		 587#ifdef CONFIG_INFINIBAND_IPOIB_CM
588
68e995a2
PS		 589extern int ipoib_max_conn_qp;
590
839fcaba
MT		 591static inline int ipoib_cm_admin_enabled(struct net_device *dev)
592{
593 struct ipoib_dev_priv *priv = netdev_priv(dev);
594 return IPOIB_CM_SUPPORTED(dev->dev_addr) &&
595 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
596}
597
b63b70d8 598static inline int ipoib_cm_enabled(struct net_device *dev, u8 *hwaddr)
839fcaba
MT		 599{
600 struct ipoib_dev_priv *priv = netdev_priv(dev);
b63b70d8 601 return IPOIB_CM_SUPPORTED(hwaddr) &&
839fcaba
MT		 602 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
603}
604
605static inline int ipoib_cm_up(struct ipoib_neigh *neigh)
606
607{
608 return test_bit(IPOIB_FLAG_OPER_UP, &neigh->cm->flags);
609}
610
611static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh)
612{
613 return neigh->cm;
614}
615
616static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx)
617{
618 neigh->cm = tx;
619}
620
68e995a2
PS		 621static inline int ipoib_cm_has_srq(struct net_device *dev)
622{
623 struct ipoib_dev_priv *priv = netdev_priv(dev);
624 return !!priv->cm.srq;
625}
626
586a6934
PS		 627static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev)
628{
629 struct ipoib_dev_priv *priv = netdev_priv(dev);
630 return priv->cm.max_cm_mtu;
631}
632
839fcaba
MT		 633void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx);
634int ipoib_cm_dev_open(struct net_device *dev);
635void ipoib_cm_dev_stop(struct net_device *dev);
636int ipoib_cm_dev_init(struct net_device *dev);
637int ipoib_cm_add_mode_attr(struct net_device *dev);
638void ipoib_cm_dev_cleanup(struct net_device *dev);
639struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path,
640 struct ipoib_neigh *neigh);
641void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx);
2337f809 642void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb,
839fcaba
MT		 643 unsigned int mtu);
644void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc);
1b524963 645void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc);
839fcaba
MT		 646#else
647
648struct ipoib_cm_tx;
649
68e995a2
PS		 650#define ipoib_max_conn_qp 0
651
839fcaba
MT		 652static inline int ipoib_cm_admin_enabled(struct net_device *dev)
653{
654 return 0;
655}
b63b70d8 656static inline int ipoib_cm_enabled(struct net_device *dev, u8 *hwaddr)
839fcaba
MT		 657
658{
659 return 0;
660}
661
662static inline int ipoib_cm_up(struct ipoib_neigh *neigh)
663
664{
665 return 0;
666}
667
668static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh)
669{
670 return NULL;
671}
672
673static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx)
674{
675}
676
68e995a2
PS		 677static inline int ipoib_cm_has_srq(struct net_device *dev)
678{
679 return 0;
680}
681
586a6934
PS		 682static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev)
683{
684 return 0;
685}
686
839fcaba
MT		 687static inline
688void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx)
689{
690 return;
691}
692
693static inline
694int ipoib_cm_dev_open(struct net_device *dev)
695{
696 return 0;
697}
698
699static inline
700void ipoib_cm_dev_stop(struct net_device *dev)
701{
702 return;
703}
704
705static inline
706int ipoib_cm_dev_init(struct net_device *dev)
707{
708 return -ENOSYS;
709}
710
711static inline
712void ipoib_cm_dev_cleanup(struct net_device *dev)
713{
714 return;
715}
716
717static inline
718struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path,
719 struct ipoib_neigh *neigh)
720{
721 return NULL;
722}
723
724static inline
725void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx)
726{
727 return;
728}
729
730static inline
731int ipoib_cm_add_mode_attr(struct net_device *dev)
732{
733 return 0;
734}
735
2337f809 736static inline void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb,
839fcaba
MT		 737 unsigned int mtu)
738{
739 dev_kfree_skb_any(skb);
740}
741
742static inline void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
743{
744}
745
1b524963
MT		 746static inline void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc)
747{
748}
839fcaba
MT		 749#endif
750
1da177e4 751#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
1732b0ef
RD		 752void ipoib_create_debug_files(struct net_device *dev);
753void ipoib_delete_debug_files(struct net_device *dev);
1da177e4
LT		 754int ipoib_register_debugfs(void);
755void ipoib_unregister_debugfs(void);
756#else
1732b0ef
RD		 757static inline void ipoib_create_debug_files(struct net_device *dev) { }
758static inline void ipoib_delete_debug_files(struct net_device *dev) { }
1da177e4
LT		 759static inline int ipoib_register_debugfs(void) { return 0; }
760static inline void ipoib_unregister_debugfs(void) { }
761#endif
762
1da177e4
LT		 763#define ipoib_printk(level, priv, format, arg...) \
764 printk(level "%s: " format, ((struct ipoib_dev_priv *) priv)->dev->name , ## arg)
765#define ipoib_warn(priv, format, arg...) \
766 ipoib_printk(KERN_WARNING, priv, format , ## arg)
767
0f485251
SM		 768extern int ipoib_sendq_size;
769extern int ipoib_recvq_size;
1da177e4 770
c1a0b23b
MT		 771extern struct ib_sa_client ipoib_sa_client;
772
1da177e4
LT		 773#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
774extern int ipoib_debug_level;
775
776#define ipoib_dbg(priv, format, arg...) \
2337f809 777 do { \
1da177e4
LT		 778 if (ipoib_debug_level > 0) \
779 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
780 } while (0)
781#define ipoib_dbg_mcast(priv, format, arg...) \
2337f809 782 do { \
1da177e4
LT		 783 if (mcast_debug_level > 0) \
784 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
785 } while (0)
786#else /* CONFIG_INFINIBAND_IPOIB_DEBUG */
787#define ipoib_dbg(priv, format, arg...) \
788 do { (void) (priv); } while (0)
789#define ipoib_dbg_mcast(priv, format, arg...) \
790 do { (void) (priv); } while (0)
791#endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */
792
793#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG_DATA
794#define ipoib_dbg_data(priv, format, arg...) \
2337f809 795 do { \
1da177e4
LT		 796 if (data_debug_level > 0) \
797 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
798 } while (0)
799#else /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
800#define ipoib_dbg_data(priv, format, arg...) \
801 do { (void) (priv); } while (0)
802#endif /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
803
839fcaba
MT		 804#define IPOIB_QPN(ha) (be32_to_cpup((__be32 *) ha) & 0xffffff)
805
4b48680b
YB		 806extern const char ipoib_driver_version[];
807
1da177e4 808#endif /* _IPOIB_H */
Ubuntu Artful kernel mirror