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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. | |
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> | |
47 | ||
48 | #include <asm/atomic.h> | |
1da177e4 | 49 | |
a4d61e84 RD |
50 | #include <rdma/ib_verbs.h> |
51 | #include <rdma/ib_pack.h> | |
52 | #include <rdma/ib_sa.h> | |
af40da89 | 53 | #include <linux/inet_lro.h> |
1da177e4 LT |
54 | |
55 | /* constants */ | |
56 | ||
ee1e2c82 MS |
57 | enum ipoib_flush_level { |
58 | IPOIB_FLUSH_LIGHT, | |
59 | IPOIB_FLUSH_NORMAL, | |
60 | IPOIB_FLUSH_HEAVY | |
61 | }; | |
62 | ||
1da177e4 | 63 | enum { |
2337f809 | 64 | IPOIB_ENCAP_LEN = 4, |
1da177e4 | 65 | |
bc7b3a36 SM |
66 | IPOIB_UD_HEAD_SIZE = IB_GRH_BYTES + IPOIB_ENCAP_LEN, |
67 | IPOIB_UD_RX_SG = 2, /* max buffer needed for 4K mtu */ | |
68 | ||
2337f809 RD |
69 | IPOIB_CM_MTU = 0x10000 - 0x10, /* padding to align header to 16 */ |
70 | IPOIB_CM_BUF_SIZE = IPOIB_CM_MTU + IPOIB_ENCAP_LEN, | |
71 | IPOIB_CM_HEAD_SIZE = IPOIB_CM_BUF_SIZE % PAGE_SIZE, | |
72 | IPOIB_CM_RX_SG = ALIGN(IPOIB_CM_BUF_SIZE, PAGE_SIZE) / PAGE_SIZE, | |
bc3a290b EC |
73 | IPOIB_RX_RING_SIZE = 256, |
74 | IPOIB_TX_RING_SIZE = 128, | |
0f485251 SM |
75 | IPOIB_MAX_QUEUE_SIZE = 8192, |
76 | IPOIB_MIN_QUEUE_SIZE = 2, | |
68e995a2 | 77 | IPOIB_CM_MAX_CONN_QP = 4096, |
1da177e4 | 78 | |
2337f809 | 79 | IPOIB_NUM_WC = 4, |
1da177e4 LT |
80 | |
81 | IPOIB_MAX_PATH_REC_QUEUE = 3, | |
2337f809 RD |
82 | IPOIB_MAX_MCAST_QUEUE = 3, |
83 | ||
84 | IPOIB_FLAG_OPER_UP = 0, | |
85 | IPOIB_FLAG_INITIALIZED = 1, | |
86 | IPOIB_FLAG_ADMIN_UP = 2, | |
87 | IPOIB_PKEY_ASSIGNED = 3, | |
88 | IPOIB_PKEY_STOP = 4, | |
89 | IPOIB_FLAG_SUBINTERFACE = 5, | |
90 | IPOIB_MCAST_RUN = 6, | |
91 | IPOIB_STOP_REAPER = 7, | |
2337f809 | 92 | IPOIB_FLAG_ADMIN_CM = 9, |
1b524963 | 93 | IPOIB_FLAG_UMCAST = 10, |
6046136c | 94 | IPOIB_FLAG_CSUM = 11, |
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, |
2337f809 | 100 | IPOIB_MCAST_FLAG_BUSY = 2, /* joining or already joined */ |
1da177e4 | 101 | IPOIB_MCAST_FLAG_ATTACHED = 3, |
f56bcd80 | 102 | |
af40da89 VS |
103 | IPOIB_MAX_LRO_DESCRIPTORS = 8, |
104 | IPOIB_LRO_MAX_AGGR = 64, | |
105 | ||
f56bcd80 | 106 | MAX_SEND_CQE = 16, |
f89271da | 107 | IPOIB_CM_COPYBREAK = 256, |
1da177e4 LT |
108 | }; |
109 | ||
839fcaba MT |
110 | #define IPOIB_OP_RECV (1ul << 31) |
111 | #ifdef CONFIG_INFINIBAND_IPOIB_CM | |
1b524963 | 112 | #define IPOIB_OP_CM (1ul << 30) |
839fcaba | 113 | #else |
1b524963 | 114 | #define IPOIB_OP_CM (0) |
839fcaba MT |
115 | #endif |
116 | ||
1da177e4 LT |
117 | /* structs */ |
118 | ||
119 | struct ipoib_header { | |
97f52eb4 SH |
120 | __be16 proto; |
121 | u16 reserved; | |
1da177e4 LT |
122 | }; |
123 | ||
124 | struct ipoib_pseudoheader { | |
125 | u8 hwaddr[INFINIBAND_ALEN]; | |
126 | }; | |
127 | ||
81668838 SH |
128 | /* Used for all multicast joins (broadcast, IPv4 mcast and IPv6 mcast) */ |
129 | struct ipoib_mcast { | |
130 | struct ib_sa_mcmember_rec mcmember; | |
131 | struct ib_sa_multicast *mc; | |
2337f809 | 132 | struct ipoib_ah *ah; |
81668838 SH |
133 | |
134 | struct rb_node rb_node; | |
135 | struct list_head list; | |
136 | ||
137 | unsigned long created; | |
138 | unsigned long backoff; | |
139 | ||
140 | unsigned long flags; | |
141 | unsigned char logcount; | |
142 | ||
143 | struct list_head neigh_list; | |
144 | ||
145 | struct sk_buff_head pkt_queue; | |
146 | ||
147 | struct net_device *dev; | |
148 | }; | |
1da177e4 | 149 | |
1993d683 RD |
150 | struct ipoib_rx_buf { |
151 | struct sk_buff *skb; | |
bc7b3a36 | 152 | u64 mapping[IPOIB_UD_RX_SG]; |
1993d683 RD |
153 | }; |
154 | ||
155 | struct ipoib_tx_buf { | |
1da177e4 | 156 | struct sk_buff *skb; |
7143740d | 157 | u64 mapping[MAX_SKB_FRAGS + 1]; |
1da177e4 LT |
158 | }; |
159 | ||
e112373f EC |
160 | struct ipoib_cm_tx_buf { |
161 | struct sk_buff *skb; | |
162 | u64 mapping; | |
163 | }; | |
164 | ||
839fcaba MT |
165 | struct ib_cm_id; |
166 | ||
167 | struct ipoib_cm_data { | |
168 | __be32 qpn; /* High byte MUST be ignored on receive */ | |
169 | __be32 mtu; | |
170 | }; | |
171 | ||
518b1646 MT |
172 | /* |
173 | * Quoting 10.3.1 Queue Pair and EE Context States: | |
174 | * | |
175 | * Note, for QPs that are associated with an SRQ, the Consumer should take the | |
176 | * QP through the Error State before invoking a Destroy QP or a Modify QP to the | |
177 | * Reset State. The Consumer may invoke the Destroy QP without first performing | |
178 | * a Modify QP to the Error State and waiting for the Affiliated Asynchronous | |
179 | * Last WQE Reached Event. However, if the Consumer does not wait for the | |
180 | * Affiliated Asynchronous Last WQE Reached Event, then WQE and Data Segment | |
181 | * leakage may occur. Therefore, it is good programming practice to tear down a | |
182 | * QP that is associated with an SRQ by using the following process: | |
183 | * | |
184 | * - Put the QP in the Error State | |
185 | * - Wait for the Affiliated Asynchronous Last WQE Reached Event; | |
186 | * - either: | |
187 | * drain the CQ by invoking the Poll CQ verb and either wait for CQ | |
188 | * to be empty or the number of Poll CQ operations has exceeded | |
189 | * CQ capacity size; | |
190 | * - or | |
191 | * post another WR that completes on the same CQ and wait for this | |
192 | * WR to return as a WC; | |
193 | * - and then invoke a Destroy QP or Reset QP. | |
194 | * | |
195 | * We use the second option and wait for a completion on the | |
ec56dc0b | 196 | * same CQ before destroying QPs attached to our SRQ. |
518b1646 MT |
197 | */ |
198 | ||
199 | enum ipoib_cm_state { | |
200 | IPOIB_CM_RX_LIVE, | |
201 | IPOIB_CM_RX_ERROR, /* Ignored by stale task */ | |
202 | IPOIB_CM_RX_FLUSH /* Last WQE Reached event observed */ | |
203 | }; | |
204 | ||
839fcaba | 205 | struct ipoib_cm_rx { |
2337f809 RD |
206 | struct ib_cm_id *id; |
207 | struct ib_qp *qp; | |
68e995a2 | 208 | struct ipoib_cm_rx_buf *rx_ring; |
2337f809 RD |
209 | struct list_head list; |
210 | struct net_device *dev; | |
211 | unsigned long jiffies; | |
212 | enum ipoib_cm_state state; | |
68e995a2 | 213 | int recv_count; |
839fcaba MT |
214 | }; |
215 | ||
216 | struct ipoib_cm_tx { | |
2337f809 RD |
217 | struct ib_cm_id *id; |
218 | struct ib_qp *qp; | |
839fcaba MT |
219 | struct list_head list; |
220 | struct net_device *dev; | |
221 | struct ipoib_neigh *neigh; | |
222 | struct ipoib_path *path; | |
e112373f | 223 | struct ipoib_cm_tx_buf *tx_ring; |
2337f809 RD |
224 | unsigned tx_head; |
225 | unsigned tx_tail; | |
226 | unsigned long flags; | |
227 | u32 mtu; | |
839fcaba MT |
228 | }; |
229 | ||
230 | struct ipoib_cm_rx_buf { | |
231 | struct sk_buff *skb; | |
232 | u64 mapping[IPOIB_CM_RX_SG]; | |
233 | }; | |
234 | ||
235 | struct ipoib_cm_dev_priv { | |
2337f809 | 236 | struct ib_srq *srq; |
839fcaba | 237 | struct ipoib_cm_rx_buf *srq_ring; |
2337f809 RD |
238 | struct ib_cm_id *id; |
239 | struct list_head passive_ids; /* state: LIVE */ | |
240 | struct list_head rx_error_list; /* state: ERROR */ | |
241 | struct list_head rx_flush_list; /* state: FLUSH, drain not started */ | |
242 | struct list_head rx_drain_list; /* state: FLUSH, drain started */ | |
243 | struct list_head rx_reap_list; /* state: FLUSH, drain done */ | |
839fcaba MT |
244 | struct work_struct start_task; |
245 | struct work_struct reap_task; | |
246 | struct work_struct skb_task; | |
518b1646 | 247 | struct work_struct rx_reap_task; |
839fcaba MT |
248 | struct delayed_work stale_task; |
249 | struct sk_buff_head skb_queue; | |
2337f809 RD |
250 | struct list_head start_list; |
251 | struct list_head reap_list; | |
252 | struct ib_wc ibwc[IPOIB_NUM_WC]; | |
253 | struct ib_sge rx_sge[IPOIB_CM_RX_SG]; | |
839fcaba | 254 | struct ib_recv_wr rx_wr; |
68e995a2 | 255 | int nonsrq_conn_qp; |
586a6934 PS |
256 | int max_cm_mtu; |
257 | int num_frags; | |
839fcaba MT |
258 | }; |
259 | ||
28d52b3c EC |
260 | struct ipoib_ethtool_st { |
261 | u16 coalesce_usecs; | |
262 | u16 max_coalesced_frames; | |
263 | }; | |
264 | ||
af40da89 VS |
265 | struct ipoib_lro { |
266 | struct net_lro_mgr lro_mgr; | |
267 | struct net_lro_desc lro_desc[IPOIB_MAX_LRO_DESCRIPTORS]; | |
268 | }; | |
269 | ||
1da177e4 | 270 | /* |
943c246e RD |
271 | * Device private locking: network stack tx_lock protects members used |
272 | * in TX fast path, lock protects everything else. lock nests inside | |
273 | * of tx_lock (ie tx_lock must be acquired first if needed). | |
1da177e4 LT |
274 | */ |
275 | struct ipoib_dev_priv { | |
276 | spinlock_t lock; | |
277 | ||
278 | struct net_device *dev; | |
279 | ||
bea3348e SH |
280 | struct napi_struct napi; |
281 | ||
1da177e4 LT |
282 | unsigned long flags; |
283 | ||
95ed644f | 284 | struct mutex vlan_mutex; |
1da177e4 LT |
285 | |
286 | struct rb_root path_tree; | |
287 | struct list_head path_list; | |
288 | ||
289 | struct ipoib_mcast *broadcast; | |
290 | struct list_head multicast_list; | |
291 | struct rb_root multicast_tree; | |
292 | ||
26bbf13c | 293 | struct delayed_work pkey_poll_task; |
c4028958 | 294 | struct delayed_work mcast_task; |
e8224e4b | 295 | struct work_struct carrier_on_task; |
ee1e2c82 MS |
296 | struct work_struct flush_light; |
297 | struct work_struct flush_normal; | |
298 | struct work_struct flush_heavy; | |
1da177e4 | 299 | struct work_struct restart_task; |
c4028958 | 300 | struct delayed_work ah_reap_task; |
1da177e4 LT |
301 | |
302 | struct ib_device *ca; | |
2337f809 RD |
303 | u8 port; |
304 | u16 pkey; | |
305 | u16 pkey_index; | |
306 | struct ib_pd *pd; | |
307 | struct ib_mr *mr; | |
f56bcd80 EC |
308 | struct ib_cq *recv_cq; |
309 | struct ib_cq *send_cq; | |
2337f809 RD |
310 | struct ib_qp *qp; |
311 | u32 qkey; | |
1da177e4 LT |
312 | |
313 | union ib_gid local_gid; | |
2337f809 | 314 | u16 local_lid; |
1da177e4 LT |
315 | |
316 | unsigned int admin_mtu; | |
317 | unsigned int mcast_mtu; | |
bc7b3a36 | 318 | unsigned int max_ib_mtu; |
1da177e4 | 319 | |
1993d683 | 320 | struct ipoib_rx_buf *rx_ring; |
1da177e4 | 321 | |
1993d683 | 322 | struct ipoib_tx_buf *tx_ring; |
2337f809 RD |
323 | unsigned tx_head; |
324 | unsigned tx_tail; | |
7143740d | 325 | struct ib_sge tx_sge[MAX_SKB_FRAGS + 1]; |
1993d683 | 326 | struct ib_send_wr tx_wr; |
2337f809 | 327 | unsigned tx_outstanding; |
f56bcd80 | 328 | struct ib_wc send_wc[MAX_SEND_CQE]; |
1da177e4 | 329 | |
bc7b3a36 SM |
330 | struct ib_recv_wr rx_wr; |
331 | struct ib_sge rx_sge[IPOIB_UD_RX_SG]; | |
332 | ||
1da177e4 LT |
333 | struct ib_wc ibwc[IPOIB_NUM_WC]; |
334 | ||
335 | struct list_head dead_ahs; | |
336 | ||
337 | struct ib_event_handler event_handler; | |
338 | ||
1da177e4 LT |
339 | struct net_device *parent; |
340 | struct list_head child_intfs; | |
341 | struct list_head list; | |
342 | ||
839fcaba MT |
343 | #ifdef CONFIG_INFINIBAND_IPOIB_CM |
344 | struct ipoib_cm_dev_priv cm; | |
345 | #endif | |
346 | ||
1da177e4 LT |
347 | #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG |
348 | struct list_head fs_list; | |
349 | struct dentry *mcg_dentry; | |
1732b0ef | 350 | struct dentry *path_dentry; |
1da177e4 | 351 | #endif |
40ca1988 | 352 | int hca_caps; |
28d52b3c | 353 | struct ipoib_ethtool_st ethtool; |
57ce41d1 | 354 | struct timer_list poll_timer; |
af40da89 VS |
355 | |
356 | struct ipoib_lro lro; | |
1da177e4 LT |
357 | }; |
358 | ||
359 | struct ipoib_ah { | |
360 | struct net_device *dev; | |
2337f809 | 361 | struct ib_ah *ah; |
1da177e4 | 362 | struct list_head list; |
2337f809 RD |
363 | struct kref ref; |
364 | unsigned last_send; | |
1da177e4 LT |
365 | }; |
366 | ||
367 | struct ipoib_path { | |
368 | struct net_device *dev; | |
369 | struct ib_sa_path_rec pathrec; | |
370 | struct ipoib_ah *ah; | |
371 | struct sk_buff_head queue; | |
372 | ||
373 | struct list_head neigh_list; | |
374 | ||
2337f809 | 375 | int query_id; |
1da177e4 LT |
376 | struct ib_sa_query *query; |
377 | struct completion done; | |
378 | ||
2337f809 | 379 | struct rb_node rb_node; |
1da177e4 | 380 | struct list_head list; |
ee1e2c82 | 381 | int valid; |
1da177e4 LT |
382 | }; |
383 | ||
384 | struct ipoib_neigh { | |
385 | struct ipoib_ah *ah; | |
839fcaba MT |
386 | #ifdef CONFIG_INFINIBAND_IPOIB_CM |
387 | struct ipoib_cm_tx *cm; | |
388 | #endif | |
2337f809 | 389 | union ib_gid dgid; |
1da177e4 LT |
390 | struct sk_buff_head queue; |
391 | ||
392 | struct neighbour *neighbour; | |
732a2170 | 393 | struct net_device *dev; |
1da177e4 LT |
394 | |
395 | struct list_head list; | |
396 | }; | |
397 | ||
bc7b3a36 SM |
398 | #define IPOIB_UD_MTU(ib_mtu) (ib_mtu - IPOIB_ENCAP_LEN) |
399 | #define IPOIB_UD_BUF_SIZE(ib_mtu) (ib_mtu + IB_GRH_BYTES) | |
400 | ||
401 | static inline int ipoib_ud_need_sg(unsigned int ib_mtu) | |
402 | { | |
403 | return IPOIB_UD_BUF_SIZE(ib_mtu) > PAGE_SIZE; | |
404 | } | |
405 | ||
44af79f9 MT |
406 | /* |
407 | * We stash a pointer to our private neighbour information after our | |
408 | * hardware address in neigh->ha. The ALIGN() expression here makes | |
409 | * sure that this pointer is stored aligned so that an unaligned | |
410 | * load is not needed to dereference it. | |
411 | */ | |
1da177e4 LT |
412 | static inline struct ipoib_neigh **to_ipoib_neigh(struct neighbour *neigh) |
413 | { | |
44af79f9 MT |
414 | return (void*) neigh + ALIGN(offsetof(struct neighbour, ha) + |
415 | INFINIBAND_ALEN, sizeof(void *)); | |
1da177e4 LT |
416 | } |
417 | ||
732a2170 MS |
418 | struct ipoib_neigh *ipoib_neigh_alloc(struct neighbour *neigh, |
419 | struct net_device *dev); | |
2745b5b7 | 420 | void ipoib_neigh_free(struct net_device *dev, struct ipoib_neigh *neigh); |
d2e0655e | 421 | |
1da177e4 LT |
422 | extern struct workqueue_struct *ipoib_workqueue; |
423 | ||
424 | /* functions */ | |
425 | ||
bea3348e | 426 | int ipoib_poll(struct napi_struct *napi, int budget); |
1da177e4 | 427 | void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr); |
57ce41d1 | 428 | void ipoib_send_comp_handler(struct ib_cq *cq, void *dev_ptr); |
1da177e4 LT |
429 | |
430 | struct ipoib_ah *ipoib_create_ah(struct net_device *dev, | |
431 | struct ib_pd *pd, struct ib_ah_attr *attr); | |
432 | void ipoib_free_ah(struct kref *kref); | |
433 | static inline void ipoib_put_ah(struct ipoib_ah *ah) | |
434 | { | |
435 | kref_put(&ah->ref, ipoib_free_ah); | |
436 | } | |
437 | ||
8ae5a8a2 | 438 | int ipoib_open(struct net_device *dev); |
1da177e4 | 439 | int ipoib_add_pkey_attr(struct net_device *dev); |
335a64a5 | 440 | int ipoib_add_umcast_attr(struct net_device *dev); |
1da177e4 LT |
441 | |
442 | void ipoib_send(struct net_device *dev, struct sk_buff *skb, | |
443 | struct ipoib_ah *address, u32 qpn); | |
c4028958 | 444 | void ipoib_reap_ah(struct work_struct *work); |
1da177e4 | 445 | |
ee1e2c82 | 446 | void ipoib_mark_paths_invalid(struct net_device *dev); |
1da177e4 LT |
447 | void ipoib_flush_paths(struct net_device *dev); |
448 | struct ipoib_dev_priv *ipoib_intf_alloc(const char *format); | |
449 | ||
450 | int ipoib_ib_dev_init(struct net_device *dev, struct ib_device *ca, int port); | |
ee1e2c82 MS |
451 | void ipoib_ib_dev_flush_light(struct work_struct *work); |
452 | void ipoib_ib_dev_flush_normal(struct work_struct *work); | |
453 | void ipoib_ib_dev_flush_heavy(struct work_struct *work); | |
26bbf13c | 454 | void ipoib_pkey_event(struct work_struct *work); |
1da177e4 LT |
455 | void ipoib_ib_dev_cleanup(struct net_device *dev); |
456 | ||
457 | int ipoib_ib_dev_open(struct net_device *dev); | |
458 | int ipoib_ib_dev_up(struct net_device *dev); | |
0b3ea082 | 459 | int ipoib_ib_dev_down(struct net_device *dev, int flush); |
26bbf13c | 460 | int ipoib_ib_dev_stop(struct net_device *dev, int flush); |
1da177e4 LT |
461 | |
462 | int ipoib_dev_init(struct net_device *dev, struct ib_device *ca, int port); | |
463 | void ipoib_dev_cleanup(struct net_device *dev); | |
464 | ||
c4028958 | 465 | void ipoib_mcast_join_task(struct work_struct *work); |
e8224e4b | 466 | void ipoib_mcast_carrier_on_task(struct work_struct *work); |
37c22a77 | 467 | void ipoib_mcast_send(struct net_device *dev, void *mgid, struct sk_buff *skb); |
1da177e4 | 468 | |
c4028958 | 469 | void ipoib_mcast_restart_task(struct work_struct *work); |
1da177e4 | 470 | int ipoib_mcast_start_thread(struct net_device *dev); |
8d2cae06 | 471 | int ipoib_mcast_stop_thread(struct net_device *dev, int flush); |
1da177e4 LT |
472 | |
473 | void ipoib_mcast_dev_down(struct net_device *dev); | |
474 | void ipoib_mcast_dev_flush(struct net_device *dev); | |
475 | ||
8ae5a8a2 | 476 | #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG |
1da177e4 | 477 | struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct net_device *dev); |
1da177e4 LT |
478 | int ipoib_mcast_iter_next(struct ipoib_mcast_iter *iter); |
479 | void ipoib_mcast_iter_read(struct ipoib_mcast_iter *iter, | |
480 | union ib_gid *gid, | |
481 | unsigned long *created, | |
482 | unsigned int *queuelen, | |
483 | unsigned int *complete, | |
484 | unsigned int *send_only); | |
1732b0ef RD |
485 | |
486 | struct ipoib_path_iter *ipoib_path_iter_init(struct net_device *dev); | |
487 | int ipoib_path_iter_next(struct ipoib_path_iter *iter); | |
488 | void ipoib_path_iter_read(struct ipoib_path_iter *iter, | |
489 | struct ipoib_path *path); | |
8ae5a8a2 | 490 | #endif |
1da177e4 LT |
491 | |
492 | int ipoib_mcast_attach(struct net_device *dev, u16 mlid, | |
d0de1362 | 493 | union ib_gid *mgid, int set_qkey); |
1da177e4 | 494 | |
5b6810e0 | 495 | int ipoib_init_qp(struct net_device *dev); |
1da177e4 LT |
496 | int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca); |
497 | void ipoib_transport_dev_cleanup(struct net_device *dev); | |
498 | ||
499 | void ipoib_event(struct ib_event_handler *handler, | |
500 | struct ib_event *record); | |
501 | ||
502 | int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey); | |
503 | int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey); | |
504 | ||
c4028958 | 505 | void ipoib_pkey_poll(struct work_struct *work); |
1da177e4 | 506 | int ipoib_pkey_dev_delay_open(struct net_device *dev); |
2dfbfc37 | 507 | void ipoib_drain_cq(struct net_device *dev); |
1da177e4 | 508 | |
82c24c18 EC |
509 | void ipoib_set_ethtool_ops(struct net_device *dev); |
510 | ||
839fcaba MT |
511 | #ifdef CONFIG_INFINIBAND_IPOIB_CM |
512 | ||
2337f809 RD |
513 | #define IPOIB_FLAGS_RC 0x80 |
514 | #define IPOIB_FLAGS_UC 0x40 | |
839fcaba MT |
515 | |
516 | /* We don't support UC connections at the moment */ | |
517 | #define IPOIB_CM_SUPPORTED(ha) (ha[0] & (IPOIB_FLAGS_RC)) | |
518 | ||
68e995a2 PS |
519 | extern int ipoib_max_conn_qp; |
520 | ||
839fcaba MT |
521 | static inline int ipoib_cm_admin_enabled(struct net_device *dev) |
522 | { | |
523 | struct ipoib_dev_priv *priv = netdev_priv(dev); | |
524 | return IPOIB_CM_SUPPORTED(dev->dev_addr) && | |
525 | test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags); | |
526 | } | |
527 | ||
528 | static inline int ipoib_cm_enabled(struct net_device *dev, struct neighbour *n) | |
529 | { | |
530 | struct ipoib_dev_priv *priv = netdev_priv(dev); | |
531 | return IPOIB_CM_SUPPORTED(n->ha) && | |
532 | test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags); | |
533 | } | |
534 | ||
535 | static inline int ipoib_cm_up(struct ipoib_neigh *neigh) | |
536 | ||
537 | { | |
538 | return test_bit(IPOIB_FLAG_OPER_UP, &neigh->cm->flags); | |
539 | } | |
540 | ||
541 | static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh) | |
542 | { | |
543 | return neigh->cm; | |
544 | } | |
545 | ||
546 | static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx) | |
547 | { | |
548 | neigh->cm = tx; | |
549 | } | |
550 | ||
68e995a2 PS |
551 | static inline int ipoib_cm_has_srq(struct net_device *dev) |
552 | { | |
553 | struct ipoib_dev_priv *priv = netdev_priv(dev); | |
554 | return !!priv->cm.srq; | |
555 | } | |
556 | ||
586a6934 PS |
557 | static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev) |
558 | { | |
559 | struct ipoib_dev_priv *priv = netdev_priv(dev); | |
560 | return priv->cm.max_cm_mtu; | |
561 | } | |
562 | ||
839fcaba MT |
563 | void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx); |
564 | int ipoib_cm_dev_open(struct net_device *dev); | |
565 | void ipoib_cm_dev_stop(struct net_device *dev); | |
566 | int ipoib_cm_dev_init(struct net_device *dev); | |
567 | int ipoib_cm_add_mode_attr(struct net_device *dev); | |
568 | void ipoib_cm_dev_cleanup(struct net_device *dev); | |
569 | struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path, | |
570 | struct ipoib_neigh *neigh); | |
571 | void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx); | |
2337f809 | 572 | void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb, |
839fcaba MT |
573 | unsigned int mtu); |
574 | void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc); | |
1b524963 | 575 | void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc); |
839fcaba MT |
576 | #else |
577 | ||
578 | struct ipoib_cm_tx; | |
579 | ||
68e995a2 PS |
580 | #define ipoib_max_conn_qp 0 |
581 | ||
839fcaba MT |
582 | static inline int ipoib_cm_admin_enabled(struct net_device *dev) |
583 | { | |
584 | return 0; | |
585 | } | |
586 | static inline int ipoib_cm_enabled(struct net_device *dev, struct neighbour *n) | |
587 | ||
588 | { | |
589 | return 0; | |
590 | } | |
591 | ||
592 | static inline int ipoib_cm_up(struct ipoib_neigh *neigh) | |
593 | ||
594 | { | |
595 | return 0; | |
596 | } | |
597 | ||
598 | static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh) | |
599 | { | |
600 | return NULL; | |
601 | } | |
602 | ||
603 | static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx) | |
604 | { | |
605 | } | |
606 | ||
68e995a2 PS |
607 | static inline int ipoib_cm_has_srq(struct net_device *dev) |
608 | { | |
609 | return 0; | |
610 | } | |
611 | ||
586a6934 PS |
612 | static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev) |
613 | { | |
614 | return 0; | |
615 | } | |
616 | ||
839fcaba MT |
617 | static inline |
618 | void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx) | |
619 | { | |
620 | return; | |
621 | } | |
622 | ||
623 | static inline | |
624 | int ipoib_cm_dev_open(struct net_device *dev) | |
625 | { | |
626 | return 0; | |
627 | } | |
628 | ||
629 | static inline | |
630 | void ipoib_cm_dev_stop(struct net_device *dev) | |
631 | { | |
632 | return; | |
633 | } | |
634 | ||
635 | static inline | |
636 | int ipoib_cm_dev_init(struct net_device *dev) | |
637 | { | |
638 | return -ENOSYS; | |
639 | } | |
640 | ||
641 | static inline | |
642 | void ipoib_cm_dev_cleanup(struct net_device *dev) | |
643 | { | |
644 | return; | |
645 | } | |
646 | ||
647 | static inline | |
648 | struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path, | |
649 | struct ipoib_neigh *neigh) | |
650 | { | |
651 | return NULL; | |
652 | } | |
653 | ||
654 | static inline | |
655 | void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx) | |
656 | { | |
657 | return; | |
658 | } | |
659 | ||
660 | static inline | |
661 | int ipoib_cm_add_mode_attr(struct net_device *dev) | |
662 | { | |
663 | return 0; | |
664 | } | |
665 | ||
2337f809 | 666 | static inline void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb, |
839fcaba MT |
667 | unsigned int mtu) |
668 | { | |
669 | dev_kfree_skb_any(skb); | |
670 | } | |
671 | ||
672 | static inline void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc) | |
673 | { | |
674 | } | |
675 | ||
1b524963 MT |
676 | static inline void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc) |
677 | { | |
678 | } | |
839fcaba MT |
679 | #endif |
680 | ||
1da177e4 | 681 | #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG |
1732b0ef RD |
682 | void ipoib_create_debug_files(struct net_device *dev); |
683 | void ipoib_delete_debug_files(struct net_device *dev); | |
1da177e4 LT |
684 | int ipoib_register_debugfs(void); |
685 | void ipoib_unregister_debugfs(void); | |
686 | #else | |
1732b0ef RD |
687 | static inline void ipoib_create_debug_files(struct net_device *dev) { } |
688 | static inline void ipoib_delete_debug_files(struct net_device *dev) { } | |
1da177e4 LT |
689 | static inline int ipoib_register_debugfs(void) { return 0; } |
690 | static inline void ipoib_unregister_debugfs(void) { } | |
691 | #endif | |
692 | ||
1da177e4 LT |
693 | #define ipoib_printk(level, priv, format, arg...) \ |
694 | printk(level "%s: " format, ((struct ipoib_dev_priv *) priv)->dev->name , ## arg) | |
695 | #define ipoib_warn(priv, format, arg...) \ | |
696 | ipoib_printk(KERN_WARNING, priv, format , ## arg) | |
697 | ||
0f485251 SM |
698 | extern int ipoib_sendq_size; |
699 | extern int ipoib_recvq_size; | |
1da177e4 | 700 | |
c1a0b23b MT |
701 | extern struct ib_sa_client ipoib_sa_client; |
702 | ||
1da177e4 LT |
703 | #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG |
704 | extern int ipoib_debug_level; | |
705 | ||
706 | #define ipoib_dbg(priv, format, arg...) \ | |
2337f809 | 707 | do { \ |
1da177e4 LT |
708 | if (ipoib_debug_level > 0) \ |
709 | ipoib_printk(KERN_DEBUG, priv, format , ## arg); \ | |
710 | } while (0) | |
711 | #define ipoib_dbg_mcast(priv, format, arg...) \ | |
2337f809 | 712 | do { \ |
1da177e4 LT |
713 | if (mcast_debug_level > 0) \ |
714 | ipoib_printk(KERN_DEBUG, priv, format , ## arg); \ | |
715 | } while (0) | |
716 | #else /* CONFIG_INFINIBAND_IPOIB_DEBUG */ | |
717 | #define ipoib_dbg(priv, format, arg...) \ | |
718 | do { (void) (priv); } while (0) | |
719 | #define ipoib_dbg_mcast(priv, format, arg...) \ | |
720 | do { (void) (priv); } while (0) | |
721 | #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */ | |
722 | ||
723 | #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG_DATA | |
724 | #define ipoib_dbg_data(priv, format, arg...) \ | |
2337f809 | 725 | do { \ |
1da177e4 LT |
726 | if (data_debug_level > 0) \ |
727 | ipoib_printk(KERN_DEBUG, priv, format , ## arg); \ | |
728 | } while (0) | |
729 | #else /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */ | |
730 | #define ipoib_dbg_data(priv, format, arg...) \ | |
731 | do { (void) (priv); } while (0) | |
732 | #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */ | |
733 | ||
734 | ||
37c22a77 JM |
735 | #define IPOIB_GID_FMT "%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x:" \ |
736 | "%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x" | |
737 | ||
738 | #define IPOIB_GID_RAW_ARG(gid) ((u8 *)(gid))[0], \ | |
739 | ((u8 *)(gid))[1], \ | |
740 | ((u8 *)(gid))[2], \ | |
741 | ((u8 *)(gid))[3], \ | |
742 | ((u8 *)(gid))[4], \ | |
743 | ((u8 *)(gid))[5], \ | |
744 | ((u8 *)(gid))[6], \ | |
745 | ((u8 *)(gid))[7], \ | |
746 | ((u8 *)(gid))[8], \ | |
747 | ((u8 *)(gid))[9], \ | |
748 | ((u8 *)(gid))[10],\ | |
749 | ((u8 *)(gid))[11],\ | |
750 | ((u8 *)(gid))[12],\ | |
751 | ((u8 *)(gid))[13],\ | |
752 | ((u8 *)(gid))[14],\ | |
753 | ((u8 *)(gid))[15] | |
754 | ||
755 | #define IPOIB_GID_ARG(gid) IPOIB_GID_RAW_ARG((gid).raw) | |
1da177e4 | 756 | |
839fcaba MT |
757 | #define IPOIB_QPN(ha) (be32_to_cpup((__be32 *) ha) & 0xffffff) |
758 | ||
1da177e4 | 759 | #endif /* _IPOIB_H */ |