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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 | ||
58 | enum { | |
2337f809 RD |
59 | IPOIB_PACKET_SIZE = 2048, |
60 | IPOIB_BUF_SIZE = IPOIB_PACKET_SIZE + IB_GRH_BYTES, | |
1da177e4 | 61 | |
2337f809 | 62 | IPOIB_ENCAP_LEN = 4, |
1da177e4 | 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, |
1da177e4 LT |
90 | |
91 | IPOIB_MAX_BACKOFF_SECONDS = 16, | |
92 | ||
2337f809 | 93 | IPOIB_MCAST_FLAG_FOUND = 0, /* used in set_multicast_list */ |
1da177e4 | 94 | IPOIB_MCAST_FLAG_SENDONLY = 1, |
2337f809 | 95 | IPOIB_MCAST_FLAG_BUSY = 2, /* joining or already joined */ |
1da177e4 LT |
96 | IPOIB_MCAST_FLAG_ATTACHED = 3, |
97 | }; | |
98 | ||
839fcaba MT |
99 | #define IPOIB_OP_RECV (1ul << 31) |
100 | #ifdef CONFIG_INFINIBAND_IPOIB_CM | |
1b524963 | 101 | #define IPOIB_OP_CM (1ul << 30) |
839fcaba | 102 | #else |
1b524963 | 103 | #define IPOIB_OP_CM (0) |
839fcaba MT |
104 | #endif |
105 | ||
1da177e4 LT |
106 | /* structs */ |
107 | ||
108 | struct ipoib_header { | |
97f52eb4 SH |
109 | __be16 proto; |
110 | u16 reserved; | |
1da177e4 LT |
111 | }; |
112 | ||
113 | struct ipoib_pseudoheader { | |
114 | u8 hwaddr[INFINIBAND_ALEN]; | |
115 | }; | |
116 | ||
81668838 SH |
117 | /* Used for all multicast joins (broadcast, IPv4 mcast and IPv6 mcast) */ |
118 | struct ipoib_mcast { | |
119 | struct ib_sa_mcmember_rec mcmember; | |
120 | struct ib_sa_multicast *mc; | |
2337f809 | 121 | struct ipoib_ah *ah; |
81668838 SH |
122 | |
123 | struct rb_node rb_node; | |
124 | struct list_head list; | |
125 | ||
126 | unsigned long created; | |
127 | unsigned long backoff; | |
128 | ||
129 | unsigned long flags; | |
130 | unsigned char logcount; | |
131 | ||
132 | struct list_head neigh_list; | |
133 | ||
134 | struct sk_buff_head pkt_queue; | |
135 | ||
136 | struct net_device *dev; | |
137 | }; | |
1da177e4 | 138 | |
1993d683 RD |
139 | struct ipoib_rx_buf { |
140 | struct sk_buff *skb; | |
37ccf9df | 141 | u64 mapping; |
1993d683 RD |
142 | }; |
143 | ||
144 | struct ipoib_tx_buf { | |
1da177e4 | 145 | struct sk_buff *skb; |
7143740d | 146 | u64 mapping[MAX_SKB_FRAGS + 1]; |
1da177e4 LT |
147 | }; |
148 | ||
839fcaba MT |
149 | struct ib_cm_id; |
150 | ||
151 | struct ipoib_cm_data { | |
152 | __be32 qpn; /* High byte MUST be ignored on receive */ | |
153 | __be32 mtu; | |
154 | }; | |
155 | ||
518b1646 MT |
156 | /* |
157 | * Quoting 10.3.1 Queue Pair and EE Context States: | |
158 | * | |
159 | * Note, for QPs that are associated with an SRQ, the Consumer should take the | |
160 | * QP through the Error State before invoking a Destroy QP or a Modify QP to the | |
161 | * Reset State. The Consumer may invoke the Destroy QP without first performing | |
162 | * a Modify QP to the Error State and waiting for the Affiliated Asynchronous | |
163 | * Last WQE Reached Event. However, if the Consumer does not wait for the | |
164 | * Affiliated Asynchronous Last WQE Reached Event, then WQE and Data Segment | |
165 | * leakage may occur. Therefore, it is good programming practice to tear down a | |
166 | * QP that is associated with an SRQ by using the following process: | |
167 | * | |
168 | * - Put the QP in the Error State | |
169 | * - Wait for the Affiliated Asynchronous Last WQE Reached Event; | |
170 | * - either: | |
171 | * drain the CQ by invoking the Poll CQ verb and either wait for CQ | |
172 | * to be empty or the number of Poll CQ operations has exceeded | |
173 | * CQ capacity size; | |
174 | * - or | |
175 | * post another WR that completes on the same CQ and wait for this | |
176 | * WR to return as a WC; | |
177 | * - and then invoke a Destroy QP or Reset QP. | |
178 | * | |
179 | * We use the second option and wait for a completion on the | |
ec56dc0b | 180 | * same CQ before destroying QPs attached to our SRQ. |
518b1646 MT |
181 | */ |
182 | ||
183 | enum ipoib_cm_state { | |
184 | IPOIB_CM_RX_LIVE, | |
185 | IPOIB_CM_RX_ERROR, /* Ignored by stale task */ | |
186 | IPOIB_CM_RX_FLUSH /* Last WQE Reached event observed */ | |
187 | }; | |
188 | ||
839fcaba | 189 | struct ipoib_cm_rx { |
2337f809 RD |
190 | struct ib_cm_id *id; |
191 | struct ib_qp *qp; | |
68e995a2 | 192 | struct ipoib_cm_rx_buf *rx_ring; |
2337f809 RD |
193 | struct list_head list; |
194 | struct net_device *dev; | |
195 | unsigned long jiffies; | |
196 | enum ipoib_cm_state state; | |
68e995a2 | 197 | int recv_count; |
839fcaba MT |
198 | }; |
199 | ||
200 | struct ipoib_cm_tx { | |
2337f809 RD |
201 | struct ib_cm_id *id; |
202 | struct ib_qp *qp; | |
839fcaba MT |
203 | struct list_head list; |
204 | struct net_device *dev; | |
205 | struct ipoib_neigh *neigh; | |
206 | struct ipoib_path *path; | |
207 | struct ipoib_tx_buf *tx_ring; | |
2337f809 RD |
208 | unsigned tx_head; |
209 | unsigned tx_tail; | |
210 | unsigned long flags; | |
211 | u32 mtu; | |
839fcaba MT |
212 | }; |
213 | ||
214 | struct ipoib_cm_rx_buf { | |
215 | struct sk_buff *skb; | |
216 | u64 mapping[IPOIB_CM_RX_SG]; | |
217 | }; | |
218 | ||
219 | struct ipoib_cm_dev_priv { | |
2337f809 | 220 | struct ib_srq *srq; |
839fcaba | 221 | struct ipoib_cm_rx_buf *srq_ring; |
2337f809 RD |
222 | struct ib_cm_id *id; |
223 | struct list_head passive_ids; /* state: LIVE */ | |
224 | struct list_head rx_error_list; /* state: ERROR */ | |
225 | struct list_head rx_flush_list; /* state: FLUSH, drain not started */ | |
226 | struct list_head rx_drain_list; /* state: FLUSH, drain started */ | |
227 | struct list_head rx_reap_list; /* state: FLUSH, drain done */ | |
839fcaba MT |
228 | struct work_struct start_task; |
229 | struct work_struct reap_task; | |
230 | struct work_struct skb_task; | |
518b1646 | 231 | struct work_struct rx_reap_task; |
839fcaba MT |
232 | struct delayed_work stale_task; |
233 | struct sk_buff_head skb_queue; | |
2337f809 RD |
234 | struct list_head start_list; |
235 | struct list_head reap_list; | |
236 | struct ib_wc ibwc[IPOIB_NUM_WC]; | |
237 | struct ib_sge rx_sge[IPOIB_CM_RX_SG]; | |
839fcaba | 238 | struct ib_recv_wr rx_wr; |
68e995a2 | 239 | int nonsrq_conn_qp; |
586a6934 PS |
240 | int max_cm_mtu; |
241 | int num_frags; | |
839fcaba MT |
242 | }; |
243 | ||
1da177e4 LT |
244 | /* |
245 | * Device private locking: tx_lock protects members used in TX fast | |
246 | * path (and we use LLTX so upper layers don't do extra locking). | |
247 | * lock protects everything else. lock nests inside of tx_lock (ie | |
248 | * tx_lock must be acquired first if needed). | |
249 | */ | |
250 | struct ipoib_dev_priv { | |
251 | spinlock_t lock; | |
252 | ||
253 | struct net_device *dev; | |
254 | ||
bea3348e SH |
255 | struct napi_struct napi; |
256 | ||
1da177e4 LT |
257 | unsigned long flags; |
258 | ||
95ed644f IM |
259 | struct mutex mcast_mutex; |
260 | struct mutex vlan_mutex; | |
1da177e4 LT |
261 | |
262 | struct rb_root path_tree; | |
263 | struct list_head path_list; | |
264 | ||
265 | struct ipoib_mcast *broadcast; | |
266 | struct list_head multicast_list; | |
267 | struct rb_root multicast_tree; | |
268 | ||
26bbf13c | 269 | struct delayed_work pkey_poll_task; |
c4028958 | 270 | struct delayed_work mcast_task; |
1da177e4 LT |
271 | struct work_struct flush_task; |
272 | struct work_struct restart_task; | |
c4028958 | 273 | struct delayed_work ah_reap_task; |
26bbf13c | 274 | struct work_struct pkey_event_task; |
1da177e4 LT |
275 | |
276 | struct ib_device *ca; | |
2337f809 RD |
277 | u8 port; |
278 | u16 pkey; | |
279 | u16 pkey_index; | |
280 | struct ib_pd *pd; | |
281 | struct ib_mr *mr; | |
282 | struct ib_cq *cq; | |
283 | struct ib_qp *qp; | |
284 | u32 qkey; | |
1da177e4 LT |
285 | |
286 | union ib_gid local_gid; | |
2337f809 | 287 | u16 local_lid; |
1da177e4 LT |
288 | |
289 | unsigned int admin_mtu; | |
290 | unsigned int mcast_mtu; | |
291 | ||
1993d683 | 292 | struct ipoib_rx_buf *rx_ring; |
1da177e4 | 293 | |
2337f809 | 294 | spinlock_t tx_lock; |
1993d683 | 295 | struct ipoib_tx_buf *tx_ring; |
2337f809 RD |
296 | unsigned tx_head; |
297 | unsigned tx_tail; | |
7143740d | 298 | struct ib_sge tx_sge[MAX_SKB_FRAGS + 1]; |
1993d683 | 299 | struct ib_send_wr tx_wr; |
2337f809 | 300 | unsigned tx_outstanding; |
1da177e4 LT |
301 | |
302 | struct ib_wc ibwc[IPOIB_NUM_WC]; | |
303 | ||
304 | struct list_head dead_ahs; | |
305 | ||
306 | struct ib_event_handler event_handler; | |
307 | ||
1da177e4 LT |
308 | struct net_device *parent; |
309 | struct list_head child_intfs; | |
310 | struct list_head list; | |
311 | ||
839fcaba MT |
312 | #ifdef CONFIG_INFINIBAND_IPOIB_CM |
313 | struct ipoib_cm_dev_priv cm; | |
314 | #endif | |
315 | ||
1da177e4 LT |
316 | #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG |
317 | struct list_head fs_list; | |
318 | struct dentry *mcg_dentry; | |
1732b0ef | 319 | struct dentry *path_dentry; |
1da177e4 LT |
320 | #endif |
321 | }; | |
322 | ||
323 | struct ipoib_ah { | |
324 | struct net_device *dev; | |
2337f809 | 325 | struct ib_ah *ah; |
1da177e4 | 326 | struct list_head list; |
2337f809 RD |
327 | struct kref ref; |
328 | unsigned last_send; | |
1da177e4 LT |
329 | }; |
330 | ||
331 | struct ipoib_path { | |
332 | struct net_device *dev; | |
333 | struct ib_sa_path_rec pathrec; | |
334 | struct ipoib_ah *ah; | |
335 | struct sk_buff_head queue; | |
336 | ||
337 | struct list_head neigh_list; | |
338 | ||
2337f809 | 339 | int query_id; |
1da177e4 LT |
340 | struct ib_sa_query *query; |
341 | struct completion done; | |
342 | ||
2337f809 | 343 | struct rb_node rb_node; |
1da177e4 LT |
344 | struct list_head list; |
345 | }; | |
346 | ||
347 | struct ipoib_neigh { | |
348 | struct ipoib_ah *ah; | |
839fcaba MT |
349 | #ifdef CONFIG_INFINIBAND_IPOIB_CM |
350 | struct ipoib_cm_tx *cm; | |
351 | #endif | |
2337f809 | 352 | union ib_gid dgid; |
1da177e4 LT |
353 | struct sk_buff_head queue; |
354 | ||
355 | struct neighbour *neighbour; | |
732a2170 | 356 | struct net_device *dev; |
1da177e4 LT |
357 | |
358 | struct list_head list; | |
359 | }; | |
360 | ||
44af79f9 MT |
361 | /* |
362 | * We stash a pointer to our private neighbour information after our | |
363 | * hardware address in neigh->ha. The ALIGN() expression here makes | |
364 | * sure that this pointer is stored aligned so that an unaligned | |
365 | * load is not needed to dereference it. | |
366 | */ | |
1da177e4 LT |
367 | static inline struct ipoib_neigh **to_ipoib_neigh(struct neighbour *neigh) |
368 | { | |
44af79f9 MT |
369 | return (void*) neigh + ALIGN(offsetof(struct neighbour, ha) + |
370 | INFINIBAND_ALEN, sizeof(void *)); | |
1da177e4 LT |
371 | } |
372 | ||
732a2170 MS |
373 | struct ipoib_neigh *ipoib_neigh_alloc(struct neighbour *neigh, |
374 | struct net_device *dev); | |
2745b5b7 | 375 | void ipoib_neigh_free(struct net_device *dev, struct ipoib_neigh *neigh); |
d2e0655e | 376 | |
1da177e4 LT |
377 | extern struct workqueue_struct *ipoib_workqueue; |
378 | ||
379 | /* functions */ | |
380 | ||
bea3348e | 381 | int ipoib_poll(struct napi_struct *napi, int budget); |
1da177e4 LT |
382 | void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr); |
383 | ||
384 | struct ipoib_ah *ipoib_create_ah(struct net_device *dev, | |
385 | struct ib_pd *pd, struct ib_ah_attr *attr); | |
386 | void ipoib_free_ah(struct kref *kref); | |
387 | static inline void ipoib_put_ah(struct ipoib_ah *ah) | |
388 | { | |
389 | kref_put(&ah->ref, ipoib_free_ah); | |
390 | } | |
391 | ||
8ae5a8a2 | 392 | int ipoib_open(struct net_device *dev); |
1da177e4 | 393 | int ipoib_add_pkey_attr(struct net_device *dev); |
335a64a5 | 394 | int ipoib_add_umcast_attr(struct net_device *dev); |
1da177e4 LT |
395 | |
396 | void ipoib_send(struct net_device *dev, struct sk_buff *skb, | |
397 | struct ipoib_ah *address, u32 qpn); | |
c4028958 | 398 | void ipoib_reap_ah(struct work_struct *work); |
1da177e4 LT |
399 | |
400 | void ipoib_flush_paths(struct net_device *dev); | |
401 | struct ipoib_dev_priv *ipoib_intf_alloc(const char *format); | |
402 | ||
403 | int ipoib_ib_dev_init(struct net_device *dev, struct ib_device *ca, int port); | |
c4028958 | 404 | void ipoib_ib_dev_flush(struct work_struct *work); |
26bbf13c | 405 | void ipoib_pkey_event(struct work_struct *work); |
1da177e4 LT |
406 | void ipoib_ib_dev_cleanup(struct net_device *dev); |
407 | ||
408 | int ipoib_ib_dev_open(struct net_device *dev); | |
409 | int ipoib_ib_dev_up(struct net_device *dev); | |
0b3ea082 | 410 | int ipoib_ib_dev_down(struct net_device *dev, int flush); |
26bbf13c | 411 | int ipoib_ib_dev_stop(struct net_device *dev, int flush); |
1da177e4 LT |
412 | |
413 | int ipoib_dev_init(struct net_device *dev, struct ib_device *ca, int port); | |
414 | void ipoib_dev_cleanup(struct net_device *dev); | |
415 | ||
c4028958 | 416 | void ipoib_mcast_join_task(struct work_struct *work); |
37c22a77 | 417 | void ipoib_mcast_send(struct net_device *dev, void *mgid, struct sk_buff *skb); |
1da177e4 | 418 | |
c4028958 | 419 | void ipoib_mcast_restart_task(struct work_struct *work); |
1da177e4 | 420 | int ipoib_mcast_start_thread(struct net_device *dev); |
8d2cae06 | 421 | int ipoib_mcast_stop_thread(struct net_device *dev, int flush); |
1da177e4 LT |
422 | |
423 | void ipoib_mcast_dev_down(struct net_device *dev); | |
424 | void ipoib_mcast_dev_flush(struct net_device *dev); | |
425 | ||
8ae5a8a2 | 426 | #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG |
1da177e4 | 427 | struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct net_device *dev); |
1da177e4 LT |
428 | int ipoib_mcast_iter_next(struct ipoib_mcast_iter *iter); |
429 | void ipoib_mcast_iter_read(struct ipoib_mcast_iter *iter, | |
430 | union ib_gid *gid, | |
431 | unsigned long *created, | |
432 | unsigned int *queuelen, | |
433 | unsigned int *complete, | |
434 | unsigned int *send_only); | |
1732b0ef RD |
435 | |
436 | struct ipoib_path_iter *ipoib_path_iter_init(struct net_device *dev); | |
437 | int ipoib_path_iter_next(struct ipoib_path_iter *iter); | |
438 | void ipoib_path_iter_read(struct ipoib_path_iter *iter, | |
439 | struct ipoib_path *path); | |
8ae5a8a2 | 440 | #endif |
1da177e4 LT |
441 | |
442 | int ipoib_mcast_attach(struct net_device *dev, u16 mlid, | |
443 | union ib_gid *mgid); | |
444 | int ipoib_mcast_detach(struct net_device *dev, u16 mlid, | |
445 | union ib_gid *mgid); | |
446 | ||
5b6810e0 | 447 | int ipoib_init_qp(struct net_device *dev); |
1da177e4 LT |
448 | int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca); |
449 | void ipoib_transport_dev_cleanup(struct net_device *dev); | |
450 | ||
451 | void ipoib_event(struct ib_event_handler *handler, | |
452 | struct ib_event *record); | |
453 | ||
454 | int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey); | |
455 | int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey); | |
456 | ||
c4028958 | 457 | void ipoib_pkey_poll(struct work_struct *work); |
1da177e4 | 458 | int ipoib_pkey_dev_delay_open(struct net_device *dev); |
2dfbfc37 | 459 | void ipoib_drain_cq(struct net_device *dev); |
1da177e4 | 460 | |
839fcaba MT |
461 | #ifdef CONFIG_INFINIBAND_IPOIB_CM |
462 | ||
2337f809 RD |
463 | #define IPOIB_FLAGS_RC 0x80 |
464 | #define IPOIB_FLAGS_UC 0x40 | |
839fcaba MT |
465 | |
466 | /* We don't support UC connections at the moment */ | |
467 | #define IPOIB_CM_SUPPORTED(ha) (ha[0] & (IPOIB_FLAGS_RC)) | |
468 | ||
68e995a2 PS |
469 | extern int ipoib_max_conn_qp; |
470 | ||
839fcaba MT |
471 | static inline int ipoib_cm_admin_enabled(struct net_device *dev) |
472 | { | |
473 | struct ipoib_dev_priv *priv = netdev_priv(dev); | |
474 | return IPOIB_CM_SUPPORTED(dev->dev_addr) && | |
475 | test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags); | |
476 | } | |
477 | ||
478 | static inline int ipoib_cm_enabled(struct net_device *dev, struct neighbour *n) | |
479 | { | |
480 | struct ipoib_dev_priv *priv = netdev_priv(dev); | |
481 | return IPOIB_CM_SUPPORTED(n->ha) && | |
482 | test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags); | |
483 | } | |
484 | ||
485 | static inline int ipoib_cm_up(struct ipoib_neigh *neigh) | |
486 | ||
487 | { | |
488 | return test_bit(IPOIB_FLAG_OPER_UP, &neigh->cm->flags); | |
489 | } | |
490 | ||
491 | static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh) | |
492 | { | |
493 | return neigh->cm; | |
494 | } | |
495 | ||
496 | static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx) | |
497 | { | |
498 | neigh->cm = tx; | |
499 | } | |
500 | ||
68e995a2 PS |
501 | static inline int ipoib_cm_has_srq(struct net_device *dev) |
502 | { | |
503 | struct ipoib_dev_priv *priv = netdev_priv(dev); | |
504 | return !!priv->cm.srq; | |
505 | } | |
506 | ||
586a6934 PS |
507 | static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev) |
508 | { | |
509 | struct ipoib_dev_priv *priv = netdev_priv(dev); | |
510 | return priv->cm.max_cm_mtu; | |
511 | } | |
512 | ||
839fcaba MT |
513 | void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx); |
514 | int ipoib_cm_dev_open(struct net_device *dev); | |
515 | void ipoib_cm_dev_stop(struct net_device *dev); | |
516 | int ipoib_cm_dev_init(struct net_device *dev); | |
517 | int ipoib_cm_add_mode_attr(struct net_device *dev); | |
518 | void ipoib_cm_dev_cleanup(struct net_device *dev); | |
519 | struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path, | |
520 | struct ipoib_neigh *neigh); | |
521 | void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx); | |
2337f809 | 522 | void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb, |
839fcaba MT |
523 | unsigned int mtu); |
524 | void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc); | |
1b524963 | 525 | void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc); |
839fcaba MT |
526 | #else |
527 | ||
528 | struct ipoib_cm_tx; | |
529 | ||
68e995a2 PS |
530 | #define ipoib_max_conn_qp 0 |
531 | ||
839fcaba MT |
532 | static inline int ipoib_cm_admin_enabled(struct net_device *dev) |
533 | { | |
534 | return 0; | |
535 | } | |
536 | static inline int ipoib_cm_enabled(struct net_device *dev, struct neighbour *n) | |
537 | ||
538 | { | |
539 | return 0; | |
540 | } | |
541 | ||
542 | static inline int ipoib_cm_up(struct ipoib_neigh *neigh) | |
543 | ||
544 | { | |
545 | return 0; | |
546 | } | |
547 | ||
548 | static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh) | |
549 | { | |
550 | return NULL; | |
551 | } | |
552 | ||
553 | static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx) | |
554 | { | |
555 | } | |
556 | ||
68e995a2 PS |
557 | static inline int ipoib_cm_has_srq(struct net_device *dev) |
558 | { | |
559 | return 0; | |
560 | } | |
561 | ||
586a6934 PS |
562 | static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev) |
563 | { | |
564 | return 0; | |
565 | } | |
566 | ||
839fcaba MT |
567 | static inline |
568 | void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx) | |
569 | { | |
570 | return; | |
571 | } | |
572 | ||
573 | static inline | |
574 | int ipoib_cm_dev_open(struct net_device *dev) | |
575 | { | |
576 | return 0; | |
577 | } | |
578 | ||
579 | static inline | |
580 | void ipoib_cm_dev_stop(struct net_device *dev) | |
581 | { | |
582 | return; | |
583 | } | |
584 | ||
585 | static inline | |
586 | int ipoib_cm_dev_init(struct net_device *dev) | |
587 | { | |
588 | return -ENOSYS; | |
589 | } | |
590 | ||
591 | static inline | |
592 | void ipoib_cm_dev_cleanup(struct net_device *dev) | |
593 | { | |
594 | return; | |
595 | } | |
596 | ||
597 | static inline | |
598 | struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path, | |
599 | struct ipoib_neigh *neigh) | |
600 | { | |
601 | return NULL; | |
602 | } | |
603 | ||
604 | static inline | |
605 | void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx) | |
606 | { | |
607 | return; | |
608 | } | |
609 | ||
610 | static inline | |
611 | int ipoib_cm_add_mode_attr(struct net_device *dev) | |
612 | { | |
613 | return 0; | |
614 | } | |
615 | ||
2337f809 | 616 | static inline void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb, |
839fcaba MT |
617 | unsigned int mtu) |
618 | { | |
619 | dev_kfree_skb_any(skb); | |
620 | } | |
621 | ||
622 | static inline void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc) | |
623 | { | |
624 | } | |
625 | ||
1b524963 MT |
626 | static inline void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc) |
627 | { | |
628 | } | |
839fcaba MT |
629 | #endif |
630 | ||
1da177e4 | 631 | #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG |
1732b0ef RD |
632 | void ipoib_create_debug_files(struct net_device *dev); |
633 | void ipoib_delete_debug_files(struct net_device *dev); | |
1da177e4 LT |
634 | int ipoib_register_debugfs(void); |
635 | void ipoib_unregister_debugfs(void); | |
636 | #else | |
1732b0ef RD |
637 | static inline void ipoib_create_debug_files(struct net_device *dev) { } |
638 | static inline void ipoib_delete_debug_files(struct net_device *dev) { } | |
1da177e4 LT |
639 | static inline int ipoib_register_debugfs(void) { return 0; } |
640 | static inline void ipoib_unregister_debugfs(void) { } | |
641 | #endif | |
642 | ||
643 | ||
644 | #define ipoib_printk(level, priv, format, arg...) \ | |
645 | printk(level "%s: " format, ((struct ipoib_dev_priv *) priv)->dev->name , ## arg) | |
646 | #define ipoib_warn(priv, format, arg...) \ | |
647 | ipoib_printk(KERN_WARNING, priv, format , ## arg) | |
648 | ||
0f485251 SM |
649 | extern int ipoib_sendq_size; |
650 | extern int ipoib_recvq_size; | |
1da177e4 | 651 | |
c1a0b23b MT |
652 | extern struct ib_sa_client ipoib_sa_client; |
653 | ||
1da177e4 LT |
654 | #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG |
655 | extern int ipoib_debug_level; | |
656 | ||
657 | #define ipoib_dbg(priv, format, arg...) \ | |
2337f809 | 658 | do { \ |
1da177e4 LT |
659 | if (ipoib_debug_level > 0) \ |
660 | ipoib_printk(KERN_DEBUG, priv, format , ## arg); \ | |
661 | } while (0) | |
662 | #define ipoib_dbg_mcast(priv, format, arg...) \ | |
2337f809 | 663 | do { \ |
1da177e4 LT |
664 | if (mcast_debug_level > 0) \ |
665 | ipoib_printk(KERN_DEBUG, priv, format , ## arg); \ | |
666 | } while (0) | |
667 | #else /* CONFIG_INFINIBAND_IPOIB_DEBUG */ | |
668 | #define ipoib_dbg(priv, format, arg...) \ | |
669 | do { (void) (priv); } while (0) | |
670 | #define ipoib_dbg_mcast(priv, format, arg...) \ | |
671 | do { (void) (priv); } while (0) | |
672 | #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */ | |
673 | ||
674 | #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG_DATA | |
675 | #define ipoib_dbg_data(priv, format, arg...) \ | |
2337f809 | 676 | do { \ |
1da177e4 LT |
677 | if (data_debug_level > 0) \ |
678 | ipoib_printk(KERN_DEBUG, priv, format , ## arg); \ | |
679 | } while (0) | |
680 | #else /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */ | |
681 | #define ipoib_dbg_data(priv, format, arg...) \ | |
682 | do { (void) (priv); } while (0) | |
683 | #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */ | |
684 | ||
685 | ||
37c22a77 JM |
686 | #define IPOIB_GID_FMT "%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x:" \ |
687 | "%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x" | |
688 | ||
689 | #define IPOIB_GID_RAW_ARG(gid) ((u8 *)(gid))[0], \ | |
690 | ((u8 *)(gid))[1], \ | |
691 | ((u8 *)(gid))[2], \ | |
692 | ((u8 *)(gid))[3], \ | |
693 | ((u8 *)(gid))[4], \ | |
694 | ((u8 *)(gid))[5], \ | |
695 | ((u8 *)(gid))[6], \ | |
696 | ((u8 *)(gid))[7], \ | |
697 | ((u8 *)(gid))[8], \ | |
698 | ((u8 *)(gid))[9], \ | |
699 | ((u8 *)(gid))[10],\ | |
700 | ((u8 *)(gid))[11],\ | |
701 | ((u8 *)(gid))[12],\ | |
702 | ((u8 *)(gid))[13],\ | |
703 | ((u8 *)(gid))[14],\ | |
704 | ((u8 *)(gid))[15] | |
705 | ||
706 | #define IPOIB_GID_ARG(gid) IPOIB_GID_RAW_ARG((gid).raw) | |
1da177e4 | 707 | |
839fcaba MT |
708 | #define IPOIB_QPN(ha) (be32_to_cpup((__be32 *) ha) & 0xffffff) |
709 | ||
1da177e4 | 710 | #endif /* _IPOIB_H */ |