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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 | 59 | IPOIB_ENCAP_LEN = 4, |
1da177e4 | 60 | |
bc7b3a36 SM |
61 | IPOIB_UD_HEAD_SIZE = IB_GRH_BYTES + IPOIB_ENCAP_LEN, |
62 | IPOIB_UD_RX_SG = 2, /* max buffer needed for 4K mtu */ | |
63 | ||
2337f809 RD |
64 | IPOIB_CM_MTU = 0x10000 - 0x10, /* padding to align header to 16 */ |
65 | IPOIB_CM_BUF_SIZE = IPOIB_CM_MTU + IPOIB_ENCAP_LEN, | |
66 | IPOIB_CM_HEAD_SIZE = IPOIB_CM_BUF_SIZE % PAGE_SIZE, | |
67 | IPOIB_CM_RX_SG = ALIGN(IPOIB_CM_BUF_SIZE, PAGE_SIZE) / PAGE_SIZE, | |
68 | IPOIB_RX_RING_SIZE = 128, | |
69 | IPOIB_TX_RING_SIZE = 64, | |
0f485251 SM |
70 | IPOIB_MAX_QUEUE_SIZE = 8192, |
71 | IPOIB_MIN_QUEUE_SIZE = 2, | |
68e995a2 | 72 | IPOIB_CM_MAX_CONN_QP = 4096, |
1da177e4 | 73 | |
2337f809 | 74 | IPOIB_NUM_WC = 4, |
1da177e4 LT |
75 | |
76 | IPOIB_MAX_PATH_REC_QUEUE = 3, | |
2337f809 RD |
77 | IPOIB_MAX_MCAST_QUEUE = 3, |
78 | ||
79 | IPOIB_FLAG_OPER_UP = 0, | |
80 | IPOIB_FLAG_INITIALIZED = 1, | |
81 | IPOIB_FLAG_ADMIN_UP = 2, | |
82 | IPOIB_PKEY_ASSIGNED = 3, | |
83 | IPOIB_PKEY_STOP = 4, | |
84 | IPOIB_FLAG_SUBINTERFACE = 5, | |
85 | IPOIB_MCAST_RUN = 6, | |
86 | IPOIB_STOP_REAPER = 7, | |
87 | IPOIB_MCAST_STARTED = 8, | |
88 | IPOIB_FLAG_ADMIN_CM = 9, | |
1b524963 | 89 | IPOIB_FLAG_UMCAST = 10, |
6046136c | 90 | IPOIB_FLAG_CSUM = 11, |
1da177e4 LT |
91 | |
92 | IPOIB_MAX_BACKOFF_SECONDS = 16, | |
93 | ||
2337f809 | 94 | IPOIB_MCAST_FLAG_FOUND = 0, /* used in set_multicast_list */ |
1da177e4 | 95 | IPOIB_MCAST_FLAG_SENDONLY = 1, |
2337f809 | 96 | IPOIB_MCAST_FLAG_BUSY = 2, /* joining or already joined */ |
1da177e4 LT |
97 | IPOIB_MCAST_FLAG_ATTACHED = 3, |
98 | }; | |
99 | ||
839fcaba MT |
100 | #define IPOIB_OP_RECV (1ul << 31) |
101 | #ifdef CONFIG_INFINIBAND_IPOIB_CM | |
1b524963 | 102 | #define IPOIB_OP_CM (1ul << 30) |
839fcaba | 103 | #else |
1b524963 | 104 | #define IPOIB_OP_CM (0) |
839fcaba MT |
105 | #endif |
106 | ||
1da177e4 LT |
107 | /* structs */ |
108 | ||
109 | struct ipoib_header { | |
97f52eb4 SH |
110 | __be16 proto; |
111 | u16 reserved; | |
1da177e4 LT |
112 | }; |
113 | ||
114 | struct ipoib_pseudoheader { | |
115 | u8 hwaddr[INFINIBAND_ALEN]; | |
116 | }; | |
117 | ||
81668838 SH |
118 | /* Used for all multicast joins (broadcast, IPv4 mcast and IPv6 mcast) */ |
119 | struct ipoib_mcast { | |
120 | struct ib_sa_mcmember_rec mcmember; | |
121 | struct ib_sa_multicast *mc; | |
2337f809 | 122 | struct ipoib_ah *ah; |
81668838 SH |
123 | |
124 | struct rb_node rb_node; | |
125 | struct list_head list; | |
126 | ||
127 | unsigned long created; | |
128 | unsigned long backoff; | |
129 | ||
130 | unsigned long flags; | |
131 | unsigned char logcount; | |
132 | ||
133 | struct list_head neigh_list; | |
134 | ||
135 | struct sk_buff_head pkt_queue; | |
136 | ||
137 | struct net_device *dev; | |
138 | }; | |
1da177e4 | 139 | |
1993d683 RD |
140 | struct ipoib_rx_buf { |
141 | struct sk_buff *skb; | |
bc7b3a36 | 142 | u64 mapping[IPOIB_UD_RX_SG]; |
1993d683 RD |
143 | }; |
144 | ||
145 | struct ipoib_tx_buf { | |
1da177e4 | 146 | struct sk_buff *skb; |
7143740d | 147 | u64 mapping[MAX_SKB_FRAGS + 1]; |
1da177e4 LT |
148 | }; |
149 | ||
839fcaba MT |
150 | struct ib_cm_id; |
151 | ||
152 | struct ipoib_cm_data { | |
153 | __be32 qpn; /* High byte MUST be ignored on receive */ | |
154 | __be32 mtu; | |
155 | }; | |
156 | ||
518b1646 MT |
157 | /* |
158 | * Quoting 10.3.1 Queue Pair and EE Context States: | |
159 | * | |
160 | * Note, for QPs that are associated with an SRQ, the Consumer should take the | |
161 | * QP through the Error State before invoking a Destroy QP or a Modify QP to the | |
162 | * Reset State. The Consumer may invoke the Destroy QP without first performing | |
163 | * a Modify QP to the Error State and waiting for the Affiliated Asynchronous | |
164 | * Last WQE Reached Event. However, if the Consumer does not wait for the | |
165 | * Affiliated Asynchronous Last WQE Reached Event, then WQE and Data Segment | |
166 | * leakage may occur. Therefore, it is good programming practice to tear down a | |
167 | * QP that is associated with an SRQ by using the following process: | |
168 | * | |
169 | * - Put the QP in the Error State | |
170 | * - Wait for the Affiliated Asynchronous Last WQE Reached Event; | |
171 | * - either: | |
172 | * drain the CQ by invoking the Poll CQ verb and either wait for CQ | |
173 | * to be empty or the number of Poll CQ operations has exceeded | |
174 | * CQ capacity size; | |
175 | * - or | |
176 | * post another WR that completes on the same CQ and wait for this | |
177 | * WR to return as a WC; | |
178 | * - and then invoke a Destroy QP or Reset QP. | |
179 | * | |
180 | * We use the second option and wait for a completion on the | |
ec56dc0b | 181 | * same CQ before destroying QPs attached to our SRQ. |
518b1646 MT |
182 | */ |
183 | ||
184 | enum ipoib_cm_state { | |
185 | IPOIB_CM_RX_LIVE, | |
186 | IPOIB_CM_RX_ERROR, /* Ignored by stale task */ | |
187 | IPOIB_CM_RX_FLUSH /* Last WQE Reached event observed */ | |
188 | }; | |
189 | ||
839fcaba | 190 | struct ipoib_cm_rx { |
2337f809 RD |
191 | struct ib_cm_id *id; |
192 | struct ib_qp *qp; | |
68e995a2 | 193 | struct ipoib_cm_rx_buf *rx_ring; |
2337f809 RD |
194 | struct list_head list; |
195 | struct net_device *dev; | |
196 | unsigned long jiffies; | |
197 | enum ipoib_cm_state state; | |
68e995a2 | 198 | int recv_count; |
839fcaba MT |
199 | }; |
200 | ||
201 | struct ipoib_cm_tx { | |
2337f809 RD |
202 | struct ib_cm_id *id; |
203 | struct ib_qp *qp; | |
839fcaba MT |
204 | struct list_head list; |
205 | struct net_device *dev; | |
206 | struct ipoib_neigh *neigh; | |
207 | struct ipoib_path *path; | |
208 | struct ipoib_tx_buf *tx_ring; | |
2337f809 RD |
209 | unsigned tx_head; |
210 | unsigned tx_tail; | |
211 | unsigned long flags; | |
212 | u32 mtu; | |
839fcaba MT |
213 | }; |
214 | ||
215 | struct ipoib_cm_rx_buf { | |
216 | struct sk_buff *skb; | |
217 | u64 mapping[IPOIB_CM_RX_SG]; | |
218 | }; | |
219 | ||
220 | struct ipoib_cm_dev_priv { | |
2337f809 | 221 | struct ib_srq *srq; |
839fcaba | 222 | struct ipoib_cm_rx_buf *srq_ring; |
2337f809 RD |
223 | struct ib_cm_id *id; |
224 | struct list_head passive_ids; /* state: LIVE */ | |
225 | struct list_head rx_error_list; /* state: ERROR */ | |
226 | struct list_head rx_flush_list; /* state: FLUSH, drain not started */ | |
227 | struct list_head rx_drain_list; /* state: FLUSH, drain started */ | |
228 | struct list_head rx_reap_list; /* state: FLUSH, drain done */ | |
839fcaba MT |
229 | struct work_struct start_task; |
230 | struct work_struct reap_task; | |
231 | struct work_struct skb_task; | |
518b1646 | 232 | struct work_struct rx_reap_task; |
839fcaba MT |
233 | struct delayed_work stale_task; |
234 | struct sk_buff_head skb_queue; | |
2337f809 RD |
235 | struct list_head start_list; |
236 | struct list_head reap_list; | |
237 | struct ib_wc ibwc[IPOIB_NUM_WC]; | |
238 | struct ib_sge rx_sge[IPOIB_CM_RX_SG]; | |
839fcaba | 239 | struct ib_recv_wr rx_wr; |
68e995a2 | 240 | int nonsrq_conn_qp; |
586a6934 PS |
241 | int max_cm_mtu; |
242 | int num_frags; | |
839fcaba MT |
243 | }; |
244 | ||
28d52b3c EC |
245 | struct ipoib_ethtool_st { |
246 | u16 coalesce_usecs; | |
247 | u16 max_coalesced_frames; | |
248 | }; | |
249 | ||
1da177e4 LT |
250 | /* |
251 | * Device private locking: tx_lock protects members used in TX fast | |
252 | * path (and we use LLTX so upper layers don't do extra locking). | |
253 | * lock protects everything else. lock nests inside of tx_lock (ie | |
254 | * tx_lock must be acquired first if needed). | |
255 | */ | |
256 | struct ipoib_dev_priv { | |
257 | spinlock_t lock; | |
258 | ||
259 | struct net_device *dev; | |
260 | ||
bea3348e SH |
261 | struct napi_struct napi; |
262 | ||
1da177e4 LT |
263 | unsigned long flags; |
264 | ||
95ed644f IM |
265 | struct mutex mcast_mutex; |
266 | struct mutex vlan_mutex; | |
1da177e4 LT |
267 | |
268 | struct rb_root path_tree; | |
269 | struct list_head path_list; | |
270 | ||
271 | struct ipoib_mcast *broadcast; | |
272 | struct list_head multicast_list; | |
273 | struct rb_root multicast_tree; | |
274 | ||
26bbf13c | 275 | struct delayed_work pkey_poll_task; |
c4028958 | 276 | struct delayed_work mcast_task; |
1da177e4 LT |
277 | struct work_struct flush_task; |
278 | struct work_struct restart_task; | |
c4028958 | 279 | struct delayed_work ah_reap_task; |
26bbf13c | 280 | struct work_struct pkey_event_task; |
1da177e4 LT |
281 | |
282 | struct ib_device *ca; | |
2337f809 RD |
283 | u8 port; |
284 | u16 pkey; | |
285 | u16 pkey_index; | |
286 | struct ib_pd *pd; | |
287 | struct ib_mr *mr; | |
288 | struct ib_cq *cq; | |
289 | struct ib_qp *qp; | |
290 | u32 qkey; | |
1da177e4 LT |
291 | |
292 | union ib_gid local_gid; | |
2337f809 | 293 | u16 local_lid; |
1da177e4 LT |
294 | |
295 | unsigned int admin_mtu; | |
296 | unsigned int mcast_mtu; | |
bc7b3a36 | 297 | unsigned int max_ib_mtu; |
1da177e4 | 298 | |
1993d683 | 299 | struct ipoib_rx_buf *rx_ring; |
1da177e4 | 300 | |
2337f809 | 301 | spinlock_t tx_lock; |
1993d683 | 302 | struct ipoib_tx_buf *tx_ring; |
2337f809 RD |
303 | unsigned tx_head; |
304 | unsigned tx_tail; | |
7143740d | 305 | struct ib_sge tx_sge[MAX_SKB_FRAGS + 1]; |
1993d683 | 306 | struct ib_send_wr tx_wr; |
2337f809 | 307 | unsigned tx_outstanding; |
1da177e4 | 308 | |
bc7b3a36 SM |
309 | struct ib_recv_wr rx_wr; |
310 | struct ib_sge rx_sge[IPOIB_UD_RX_SG]; | |
311 | ||
1da177e4 LT |
312 | struct ib_wc ibwc[IPOIB_NUM_WC]; |
313 | ||
314 | struct list_head dead_ahs; | |
315 | ||
316 | struct ib_event_handler event_handler; | |
317 | ||
1da177e4 LT |
318 | struct net_device *parent; |
319 | struct list_head child_intfs; | |
320 | struct list_head list; | |
321 | ||
839fcaba MT |
322 | #ifdef CONFIG_INFINIBAND_IPOIB_CM |
323 | struct ipoib_cm_dev_priv cm; | |
324 | #endif | |
325 | ||
1da177e4 LT |
326 | #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG |
327 | struct list_head fs_list; | |
328 | struct dentry *mcg_dentry; | |
1732b0ef | 329 | struct dentry *path_dentry; |
1da177e4 | 330 | #endif |
40ca1988 | 331 | int hca_caps; |
28d52b3c | 332 | struct ipoib_ethtool_st ethtool; |
1da177e4 LT |
333 | }; |
334 | ||
335 | struct ipoib_ah { | |
336 | struct net_device *dev; | |
2337f809 | 337 | struct ib_ah *ah; |
1da177e4 | 338 | struct list_head list; |
2337f809 RD |
339 | struct kref ref; |
340 | unsigned last_send; | |
1da177e4 LT |
341 | }; |
342 | ||
343 | struct ipoib_path { | |
344 | struct net_device *dev; | |
345 | struct ib_sa_path_rec pathrec; | |
346 | struct ipoib_ah *ah; | |
347 | struct sk_buff_head queue; | |
348 | ||
349 | struct list_head neigh_list; | |
350 | ||
2337f809 | 351 | int query_id; |
1da177e4 LT |
352 | struct ib_sa_query *query; |
353 | struct completion done; | |
354 | ||
2337f809 | 355 | struct rb_node rb_node; |
1da177e4 LT |
356 | struct list_head list; |
357 | }; | |
358 | ||
359 | struct ipoib_neigh { | |
360 | struct ipoib_ah *ah; | |
839fcaba MT |
361 | #ifdef CONFIG_INFINIBAND_IPOIB_CM |
362 | struct ipoib_cm_tx *cm; | |
363 | #endif | |
2337f809 | 364 | union ib_gid dgid; |
1da177e4 LT |
365 | struct sk_buff_head queue; |
366 | ||
367 | struct neighbour *neighbour; | |
732a2170 | 368 | struct net_device *dev; |
1da177e4 LT |
369 | |
370 | struct list_head list; | |
371 | }; | |
372 | ||
bc7b3a36 SM |
373 | #define IPOIB_UD_MTU(ib_mtu) (ib_mtu - IPOIB_ENCAP_LEN) |
374 | #define IPOIB_UD_BUF_SIZE(ib_mtu) (ib_mtu + IB_GRH_BYTES) | |
375 | ||
376 | static inline int ipoib_ud_need_sg(unsigned int ib_mtu) | |
377 | { | |
378 | return IPOIB_UD_BUF_SIZE(ib_mtu) > PAGE_SIZE; | |
379 | } | |
380 | ||
44af79f9 MT |
381 | /* |
382 | * We stash a pointer to our private neighbour information after our | |
383 | * hardware address in neigh->ha. The ALIGN() expression here makes | |
384 | * sure that this pointer is stored aligned so that an unaligned | |
385 | * load is not needed to dereference it. | |
386 | */ | |
1da177e4 LT |
387 | static inline struct ipoib_neigh **to_ipoib_neigh(struct neighbour *neigh) |
388 | { | |
44af79f9 MT |
389 | return (void*) neigh + ALIGN(offsetof(struct neighbour, ha) + |
390 | INFINIBAND_ALEN, sizeof(void *)); | |
1da177e4 LT |
391 | } |
392 | ||
732a2170 MS |
393 | struct ipoib_neigh *ipoib_neigh_alloc(struct neighbour *neigh, |
394 | struct net_device *dev); | |
2745b5b7 | 395 | void ipoib_neigh_free(struct net_device *dev, struct ipoib_neigh *neigh); |
d2e0655e | 396 | |
1da177e4 LT |
397 | extern struct workqueue_struct *ipoib_workqueue; |
398 | ||
399 | /* functions */ | |
400 | ||
bea3348e | 401 | int ipoib_poll(struct napi_struct *napi, int budget); |
1da177e4 LT |
402 | void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr); |
403 | ||
404 | struct ipoib_ah *ipoib_create_ah(struct net_device *dev, | |
405 | struct ib_pd *pd, struct ib_ah_attr *attr); | |
406 | void ipoib_free_ah(struct kref *kref); | |
407 | static inline void ipoib_put_ah(struct ipoib_ah *ah) | |
408 | { | |
409 | kref_put(&ah->ref, ipoib_free_ah); | |
410 | } | |
411 | ||
8ae5a8a2 | 412 | int ipoib_open(struct net_device *dev); |
1da177e4 | 413 | int ipoib_add_pkey_attr(struct net_device *dev); |
335a64a5 | 414 | int ipoib_add_umcast_attr(struct net_device *dev); |
1da177e4 LT |
415 | |
416 | void ipoib_send(struct net_device *dev, struct sk_buff *skb, | |
417 | struct ipoib_ah *address, u32 qpn); | |
c4028958 | 418 | void ipoib_reap_ah(struct work_struct *work); |
1da177e4 LT |
419 | |
420 | void ipoib_flush_paths(struct net_device *dev); | |
421 | struct ipoib_dev_priv *ipoib_intf_alloc(const char *format); | |
422 | ||
423 | int ipoib_ib_dev_init(struct net_device *dev, struct ib_device *ca, int port); | |
c4028958 | 424 | void ipoib_ib_dev_flush(struct work_struct *work); |
26bbf13c | 425 | void ipoib_pkey_event(struct work_struct *work); |
1da177e4 LT |
426 | void ipoib_ib_dev_cleanup(struct net_device *dev); |
427 | ||
428 | int ipoib_ib_dev_open(struct net_device *dev); | |
429 | int ipoib_ib_dev_up(struct net_device *dev); | |
0b3ea082 | 430 | int ipoib_ib_dev_down(struct net_device *dev, int flush); |
26bbf13c | 431 | int ipoib_ib_dev_stop(struct net_device *dev, int flush); |
1da177e4 LT |
432 | |
433 | int ipoib_dev_init(struct net_device *dev, struct ib_device *ca, int port); | |
434 | void ipoib_dev_cleanup(struct net_device *dev); | |
435 | ||
c4028958 | 436 | void ipoib_mcast_join_task(struct work_struct *work); |
37c22a77 | 437 | void ipoib_mcast_send(struct net_device *dev, void *mgid, struct sk_buff *skb); |
1da177e4 | 438 | |
c4028958 | 439 | void ipoib_mcast_restart_task(struct work_struct *work); |
1da177e4 | 440 | int ipoib_mcast_start_thread(struct net_device *dev); |
8d2cae06 | 441 | int ipoib_mcast_stop_thread(struct net_device *dev, int flush); |
1da177e4 LT |
442 | |
443 | void ipoib_mcast_dev_down(struct net_device *dev); | |
444 | void ipoib_mcast_dev_flush(struct net_device *dev); | |
445 | ||
8ae5a8a2 | 446 | #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG |
1da177e4 | 447 | struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct net_device *dev); |
1da177e4 LT |
448 | int ipoib_mcast_iter_next(struct ipoib_mcast_iter *iter); |
449 | void ipoib_mcast_iter_read(struct ipoib_mcast_iter *iter, | |
450 | union ib_gid *gid, | |
451 | unsigned long *created, | |
452 | unsigned int *queuelen, | |
453 | unsigned int *complete, | |
454 | unsigned int *send_only); | |
1732b0ef RD |
455 | |
456 | struct ipoib_path_iter *ipoib_path_iter_init(struct net_device *dev); | |
457 | int ipoib_path_iter_next(struct ipoib_path_iter *iter); | |
458 | void ipoib_path_iter_read(struct ipoib_path_iter *iter, | |
459 | struct ipoib_path *path); | |
8ae5a8a2 | 460 | #endif |
1da177e4 LT |
461 | |
462 | int ipoib_mcast_attach(struct net_device *dev, u16 mlid, | |
463 | union ib_gid *mgid); | |
464 | int ipoib_mcast_detach(struct net_device *dev, u16 mlid, | |
465 | union ib_gid *mgid); | |
466 | ||
5b6810e0 | 467 | int ipoib_init_qp(struct net_device *dev); |
1da177e4 LT |
468 | int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca); |
469 | void ipoib_transport_dev_cleanup(struct net_device *dev); | |
470 | ||
471 | void ipoib_event(struct ib_event_handler *handler, | |
472 | struct ib_event *record); | |
473 | ||
474 | int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey); | |
475 | int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey); | |
476 | ||
c4028958 | 477 | void ipoib_pkey_poll(struct work_struct *work); |
1da177e4 | 478 | int ipoib_pkey_dev_delay_open(struct net_device *dev); |
2dfbfc37 | 479 | void ipoib_drain_cq(struct net_device *dev); |
1da177e4 | 480 | |
82c24c18 EC |
481 | void ipoib_set_ethtool_ops(struct net_device *dev); |
482 | ||
839fcaba MT |
483 | #ifdef CONFIG_INFINIBAND_IPOIB_CM |
484 | ||
2337f809 RD |
485 | #define IPOIB_FLAGS_RC 0x80 |
486 | #define IPOIB_FLAGS_UC 0x40 | |
839fcaba MT |
487 | |
488 | /* We don't support UC connections at the moment */ | |
489 | #define IPOIB_CM_SUPPORTED(ha) (ha[0] & (IPOIB_FLAGS_RC)) | |
490 | ||
68e995a2 PS |
491 | extern int ipoib_max_conn_qp; |
492 | ||
839fcaba MT |
493 | static inline int ipoib_cm_admin_enabled(struct net_device *dev) |
494 | { | |
495 | struct ipoib_dev_priv *priv = netdev_priv(dev); | |
496 | return IPOIB_CM_SUPPORTED(dev->dev_addr) && | |
497 | test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags); | |
498 | } | |
499 | ||
500 | static inline int ipoib_cm_enabled(struct net_device *dev, struct neighbour *n) | |
501 | { | |
502 | struct ipoib_dev_priv *priv = netdev_priv(dev); | |
503 | return IPOIB_CM_SUPPORTED(n->ha) && | |
504 | test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags); | |
505 | } | |
506 | ||
507 | static inline int ipoib_cm_up(struct ipoib_neigh *neigh) | |
508 | ||
509 | { | |
510 | return test_bit(IPOIB_FLAG_OPER_UP, &neigh->cm->flags); | |
511 | } | |
512 | ||
513 | static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh) | |
514 | { | |
515 | return neigh->cm; | |
516 | } | |
517 | ||
518 | static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx) | |
519 | { | |
520 | neigh->cm = tx; | |
521 | } | |
522 | ||
68e995a2 PS |
523 | static inline int ipoib_cm_has_srq(struct net_device *dev) |
524 | { | |
525 | struct ipoib_dev_priv *priv = netdev_priv(dev); | |
526 | return !!priv->cm.srq; | |
527 | } | |
528 | ||
586a6934 PS |
529 | static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev) |
530 | { | |
531 | struct ipoib_dev_priv *priv = netdev_priv(dev); | |
532 | return priv->cm.max_cm_mtu; | |
533 | } | |
534 | ||
839fcaba MT |
535 | void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx); |
536 | int ipoib_cm_dev_open(struct net_device *dev); | |
537 | void ipoib_cm_dev_stop(struct net_device *dev); | |
538 | int ipoib_cm_dev_init(struct net_device *dev); | |
539 | int ipoib_cm_add_mode_attr(struct net_device *dev); | |
540 | void ipoib_cm_dev_cleanup(struct net_device *dev); | |
541 | struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path, | |
542 | struct ipoib_neigh *neigh); | |
543 | void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx); | |
2337f809 | 544 | void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb, |
839fcaba MT |
545 | unsigned int mtu); |
546 | void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc); | |
1b524963 | 547 | void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc); |
839fcaba MT |
548 | #else |
549 | ||
550 | struct ipoib_cm_tx; | |
551 | ||
68e995a2 PS |
552 | #define ipoib_max_conn_qp 0 |
553 | ||
839fcaba MT |
554 | static inline int ipoib_cm_admin_enabled(struct net_device *dev) |
555 | { | |
556 | return 0; | |
557 | } | |
558 | static inline int ipoib_cm_enabled(struct net_device *dev, struct neighbour *n) | |
559 | ||
560 | { | |
561 | return 0; | |
562 | } | |
563 | ||
564 | static inline int ipoib_cm_up(struct ipoib_neigh *neigh) | |
565 | ||
566 | { | |
567 | return 0; | |
568 | } | |
569 | ||
570 | static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh) | |
571 | { | |
572 | return NULL; | |
573 | } | |
574 | ||
575 | static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx) | |
576 | { | |
577 | } | |
578 | ||
68e995a2 PS |
579 | static inline int ipoib_cm_has_srq(struct net_device *dev) |
580 | { | |
581 | return 0; | |
582 | } | |
583 | ||
586a6934 PS |
584 | static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev) |
585 | { | |
586 | return 0; | |
587 | } | |
588 | ||
839fcaba MT |
589 | static inline |
590 | void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx) | |
591 | { | |
592 | return; | |
593 | } | |
594 | ||
595 | static inline | |
596 | int ipoib_cm_dev_open(struct net_device *dev) | |
597 | { | |
598 | return 0; | |
599 | } | |
600 | ||
601 | static inline | |
602 | void ipoib_cm_dev_stop(struct net_device *dev) | |
603 | { | |
604 | return; | |
605 | } | |
606 | ||
607 | static inline | |
608 | int ipoib_cm_dev_init(struct net_device *dev) | |
609 | { | |
610 | return -ENOSYS; | |
611 | } | |
612 | ||
613 | static inline | |
614 | void ipoib_cm_dev_cleanup(struct net_device *dev) | |
615 | { | |
616 | return; | |
617 | } | |
618 | ||
619 | static inline | |
620 | struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path, | |
621 | struct ipoib_neigh *neigh) | |
622 | { | |
623 | return NULL; | |
624 | } | |
625 | ||
626 | static inline | |
627 | void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx) | |
628 | { | |
629 | return; | |
630 | } | |
631 | ||
632 | static inline | |
633 | int ipoib_cm_add_mode_attr(struct net_device *dev) | |
634 | { | |
635 | return 0; | |
636 | } | |
637 | ||
2337f809 | 638 | static inline void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb, |
839fcaba MT |
639 | unsigned int mtu) |
640 | { | |
641 | dev_kfree_skb_any(skb); | |
642 | } | |
643 | ||
644 | static inline void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc) | |
645 | { | |
646 | } | |
647 | ||
1b524963 MT |
648 | static inline void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc) |
649 | { | |
650 | } | |
839fcaba MT |
651 | #endif |
652 | ||
1da177e4 | 653 | #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG |
1732b0ef RD |
654 | void ipoib_create_debug_files(struct net_device *dev); |
655 | void ipoib_delete_debug_files(struct net_device *dev); | |
1da177e4 LT |
656 | int ipoib_register_debugfs(void); |
657 | void ipoib_unregister_debugfs(void); | |
658 | #else | |
1732b0ef RD |
659 | static inline void ipoib_create_debug_files(struct net_device *dev) { } |
660 | static inline void ipoib_delete_debug_files(struct net_device *dev) { } | |
1da177e4 LT |
661 | static inline int ipoib_register_debugfs(void) { return 0; } |
662 | static inline void ipoib_unregister_debugfs(void) { } | |
663 | #endif | |
664 | ||
665 | ||
666 | #define ipoib_printk(level, priv, format, arg...) \ | |
667 | printk(level "%s: " format, ((struct ipoib_dev_priv *) priv)->dev->name , ## arg) | |
668 | #define ipoib_warn(priv, format, arg...) \ | |
669 | ipoib_printk(KERN_WARNING, priv, format , ## arg) | |
670 | ||
0f485251 SM |
671 | extern int ipoib_sendq_size; |
672 | extern int ipoib_recvq_size; | |
1da177e4 | 673 | |
c1a0b23b MT |
674 | extern struct ib_sa_client ipoib_sa_client; |
675 | ||
1da177e4 LT |
676 | #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG |
677 | extern int ipoib_debug_level; | |
678 | ||
679 | #define ipoib_dbg(priv, format, arg...) \ | |
2337f809 | 680 | do { \ |
1da177e4 LT |
681 | if (ipoib_debug_level > 0) \ |
682 | ipoib_printk(KERN_DEBUG, priv, format , ## arg); \ | |
683 | } while (0) | |
684 | #define ipoib_dbg_mcast(priv, format, arg...) \ | |
2337f809 | 685 | do { \ |
1da177e4 LT |
686 | if (mcast_debug_level > 0) \ |
687 | ipoib_printk(KERN_DEBUG, priv, format , ## arg); \ | |
688 | } while (0) | |
689 | #else /* CONFIG_INFINIBAND_IPOIB_DEBUG */ | |
690 | #define ipoib_dbg(priv, format, arg...) \ | |
691 | do { (void) (priv); } while (0) | |
692 | #define ipoib_dbg_mcast(priv, format, arg...) \ | |
693 | do { (void) (priv); } while (0) | |
694 | #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */ | |
695 | ||
696 | #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG_DATA | |
697 | #define ipoib_dbg_data(priv, format, arg...) \ | |
2337f809 | 698 | do { \ |
1da177e4 LT |
699 | if (data_debug_level > 0) \ |
700 | ipoib_printk(KERN_DEBUG, priv, format , ## arg); \ | |
701 | } while (0) | |
702 | #else /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */ | |
703 | #define ipoib_dbg_data(priv, format, arg...) \ | |
704 | do { (void) (priv); } while (0) | |
705 | #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */ | |
706 | ||
707 | ||
37c22a77 JM |
708 | #define IPOIB_GID_FMT "%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x:" \ |
709 | "%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x" | |
710 | ||
711 | #define IPOIB_GID_RAW_ARG(gid) ((u8 *)(gid))[0], \ | |
712 | ((u8 *)(gid))[1], \ | |
713 | ((u8 *)(gid))[2], \ | |
714 | ((u8 *)(gid))[3], \ | |
715 | ((u8 *)(gid))[4], \ | |
716 | ((u8 *)(gid))[5], \ | |
717 | ((u8 *)(gid))[6], \ | |
718 | ((u8 *)(gid))[7], \ | |
719 | ((u8 *)(gid))[8], \ | |
720 | ((u8 *)(gid))[9], \ | |
721 | ((u8 *)(gid))[10],\ | |
722 | ((u8 *)(gid))[11],\ | |
723 | ((u8 *)(gid))[12],\ | |
724 | ((u8 *)(gid))[13],\ | |
725 | ((u8 *)(gid))[14],\ | |
726 | ((u8 *)(gid))[15] | |
727 | ||
728 | #define IPOIB_GID_ARG(gid) IPOIB_GID_RAW_ARG((gid).raw) | |
1da177e4 | 729 | |
839fcaba MT |
730 | #define IPOIB_QPN(ha) (be32_to_cpup((__be32 *) ha) & 0xffffff) |
731 | ||
1da177e4 | 732 | #endif /* _IPOIB_H */ |