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1da177e4 LT |
1 | /* |
2 | * Copyright (c) 2004 Mellanox Technologies Ltd. All rights reserved. | |
3 | * Copyright (c) 2004 Infinicon Corporation. All rights reserved. | |
4 | * Copyright (c) 2004 Intel Corporation. All rights reserved. | |
5 | * Copyright (c) 2004 Topspin Corporation. All rights reserved. | |
6 | * Copyright (c) 2004 Voltaire Corporation. All rights reserved. | |
2a1d9b7f | 7 | * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved. |
f7c6a7b5 | 8 | * Copyright (c) 2005, 2006, 2007 Cisco Systems. All rights reserved. |
1da177e4 LT |
9 | * |
10 | * This software is available to you under a choice of one of two | |
11 | * licenses. You may choose to be licensed under the terms of the GNU | |
12 | * General Public License (GPL) Version 2, available from the file | |
13 | * COPYING in the main directory of this source tree, or the | |
14 | * OpenIB.org BSD license below: | |
15 | * | |
16 | * Redistribution and use in source and binary forms, with or | |
17 | * without modification, are permitted provided that the following | |
18 | * conditions are met: | |
19 | * | |
20 | * - Redistributions of source code must retain the above | |
21 | * copyright notice, this list of conditions and the following | |
22 | * disclaimer. | |
23 | * | |
24 | * - Redistributions in binary form must reproduce the above | |
25 | * copyright notice, this list of conditions and the following | |
26 | * disclaimer in the documentation and/or other materials | |
27 | * provided with the distribution. | |
28 | * | |
29 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
30 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
31 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
32 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
33 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
34 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
35 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
36 | * SOFTWARE. | |
1da177e4 LT |
37 | */ |
38 | ||
39 | #if !defined(IB_VERBS_H) | |
40 | #define IB_VERBS_H | |
41 | ||
42 | #include <linux/types.h> | |
43 | #include <linux/device.h> | |
9b513090 RC |
44 | #include <linux/mm.h> |
45 | #include <linux/dma-mapping.h> | |
459d6e2a | 46 | #include <linux/kref.h> |
bfb3ea12 DB |
47 | #include <linux/list.h> |
48 | #include <linux/rwsem.h> | |
87ae9afd | 49 | #include <linux/scatterlist.h> |
f0626710 | 50 | #include <linux/workqueue.h> |
e2773c06 | 51 | |
60063497 | 52 | #include <linux/atomic.h> |
e2773c06 | 53 | #include <asm/uaccess.h> |
1da177e4 | 54 | |
f0626710 TH |
55 | extern struct workqueue_struct *ib_wq; |
56 | ||
1da177e4 LT |
57 | union ib_gid { |
58 | u8 raw[16]; | |
59 | struct { | |
97f52eb4 SH |
60 | __be64 subnet_prefix; |
61 | __be64 interface_id; | |
1da177e4 LT |
62 | } global; |
63 | }; | |
64 | ||
07ebafba TT |
65 | enum rdma_node_type { |
66 | /* IB values map to NodeInfo:NodeType. */ | |
67 | RDMA_NODE_IB_CA = 1, | |
68 | RDMA_NODE_IB_SWITCH, | |
69 | RDMA_NODE_IB_ROUTER, | |
70 | RDMA_NODE_RNIC | |
1da177e4 LT |
71 | }; |
72 | ||
07ebafba TT |
73 | enum rdma_transport_type { |
74 | RDMA_TRANSPORT_IB, | |
75 | RDMA_TRANSPORT_IWARP | |
76 | }; | |
77 | ||
78 | enum rdma_transport_type | |
79 | rdma_node_get_transport(enum rdma_node_type node_type) __attribute_const__; | |
80 | ||
a3f5adaf EC |
81 | enum rdma_link_layer { |
82 | IB_LINK_LAYER_UNSPECIFIED, | |
83 | IB_LINK_LAYER_INFINIBAND, | |
84 | IB_LINK_LAYER_ETHERNET, | |
85 | }; | |
86 | ||
1da177e4 LT |
87 | enum ib_device_cap_flags { |
88 | IB_DEVICE_RESIZE_MAX_WR = 1, | |
89 | IB_DEVICE_BAD_PKEY_CNTR = (1<<1), | |
90 | IB_DEVICE_BAD_QKEY_CNTR = (1<<2), | |
91 | IB_DEVICE_RAW_MULTI = (1<<3), | |
92 | IB_DEVICE_AUTO_PATH_MIG = (1<<4), | |
93 | IB_DEVICE_CHANGE_PHY_PORT = (1<<5), | |
94 | IB_DEVICE_UD_AV_PORT_ENFORCE = (1<<6), | |
95 | IB_DEVICE_CURR_QP_STATE_MOD = (1<<7), | |
96 | IB_DEVICE_SHUTDOWN_PORT = (1<<8), | |
97 | IB_DEVICE_INIT_TYPE = (1<<9), | |
98 | IB_DEVICE_PORT_ACTIVE_EVENT = (1<<10), | |
99 | IB_DEVICE_SYS_IMAGE_GUID = (1<<11), | |
100 | IB_DEVICE_RC_RNR_NAK_GEN = (1<<12), | |
101 | IB_DEVICE_SRQ_RESIZE = (1<<13), | |
102 | IB_DEVICE_N_NOTIFY_CQ = (1<<14), | |
96f15c03 | 103 | IB_DEVICE_LOCAL_DMA_LKEY = (1<<15), |
0f39cf3d | 104 | IB_DEVICE_RESERVED = (1<<16), /* old SEND_W_INV */ |
e0605d91 EC |
105 | IB_DEVICE_MEM_WINDOW = (1<<17), |
106 | /* | |
107 | * Devices should set IB_DEVICE_UD_IP_SUM if they support | |
108 | * insertion of UDP and TCP checksum on outgoing UD IPoIB | |
109 | * messages and can verify the validity of checksum for | |
110 | * incoming messages. Setting this flag implies that the | |
111 | * IPoIB driver may set NETIF_F_IP_CSUM for datagram mode. | |
112 | */ | |
113 | IB_DEVICE_UD_IP_CSUM = (1<<18), | |
c93570f2 | 114 | IB_DEVICE_UD_TSO = (1<<19), |
00f7ec36 | 115 | IB_DEVICE_MEM_MGT_EXTENSIONS = (1<<21), |
47ee1b9f | 116 | IB_DEVICE_BLOCK_MULTICAST_LOOPBACK = (1<<22), |
1da177e4 LT |
117 | }; |
118 | ||
119 | enum ib_atomic_cap { | |
120 | IB_ATOMIC_NONE, | |
121 | IB_ATOMIC_HCA, | |
122 | IB_ATOMIC_GLOB | |
123 | }; | |
124 | ||
125 | struct ib_device_attr { | |
126 | u64 fw_ver; | |
97f52eb4 | 127 | __be64 sys_image_guid; |
1da177e4 LT |
128 | u64 max_mr_size; |
129 | u64 page_size_cap; | |
130 | u32 vendor_id; | |
131 | u32 vendor_part_id; | |
132 | u32 hw_ver; | |
133 | int max_qp; | |
134 | int max_qp_wr; | |
135 | int device_cap_flags; | |
136 | int max_sge; | |
137 | int max_sge_rd; | |
138 | int max_cq; | |
139 | int max_cqe; | |
140 | int max_mr; | |
141 | int max_pd; | |
142 | int max_qp_rd_atom; | |
143 | int max_ee_rd_atom; | |
144 | int max_res_rd_atom; | |
145 | int max_qp_init_rd_atom; | |
146 | int max_ee_init_rd_atom; | |
147 | enum ib_atomic_cap atomic_cap; | |
5e80ba8f | 148 | enum ib_atomic_cap masked_atomic_cap; |
1da177e4 LT |
149 | int max_ee; |
150 | int max_rdd; | |
151 | int max_mw; | |
152 | int max_raw_ipv6_qp; | |
153 | int max_raw_ethy_qp; | |
154 | int max_mcast_grp; | |
155 | int max_mcast_qp_attach; | |
156 | int max_total_mcast_qp_attach; | |
157 | int max_ah; | |
158 | int max_fmr; | |
159 | int max_map_per_fmr; | |
160 | int max_srq; | |
161 | int max_srq_wr; | |
162 | int max_srq_sge; | |
00f7ec36 | 163 | unsigned int max_fast_reg_page_list_len; |
1da177e4 LT |
164 | u16 max_pkeys; |
165 | u8 local_ca_ack_delay; | |
166 | }; | |
167 | ||
168 | enum ib_mtu { | |
169 | IB_MTU_256 = 1, | |
170 | IB_MTU_512 = 2, | |
171 | IB_MTU_1024 = 3, | |
172 | IB_MTU_2048 = 4, | |
173 | IB_MTU_4096 = 5 | |
174 | }; | |
175 | ||
176 | static inline int ib_mtu_enum_to_int(enum ib_mtu mtu) | |
177 | { | |
178 | switch (mtu) { | |
179 | case IB_MTU_256: return 256; | |
180 | case IB_MTU_512: return 512; | |
181 | case IB_MTU_1024: return 1024; | |
182 | case IB_MTU_2048: return 2048; | |
183 | case IB_MTU_4096: return 4096; | |
184 | default: return -1; | |
185 | } | |
186 | } | |
187 | ||
188 | enum ib_port_state { | |
189 | IB_PORT_NOP = 0, | |
190 | IB_PORT_DOWN = 1, | |
191 | IB_PORT_INIT = 2, | |
192 | IB_PORT_ARMED = 3, | |
193 | IB_PORT_ACTIVE = 4, | |
194 | IB_PORT_ACTIVE_DEFER = 5 | |
195 | }; | |
196 | ||
197 | enum ib_port_cap_flags { | |
198 | IB_PORT_SM = 1 << 1, | |
199 | IB_PORT_NOTICE_SUP = 1 << 2, | |
200 | IB_PORT_TRAP_SUP = 1 << 3, | |
201 | IB_PORT_OPT_IPD_SUP = 1 << 4, | |
202 | IB_PORT_AUTO_MIGR_SUP = 1 << 5, | |
203 | IB_PORT_SL_MAP_SUP = 1 << 6, | |
204 | IB_PORT_MKEY_NVRAM = 1 << 7, | |
205 | IB_PORT_PKEY_NVRAM = 1 << 8, | |
206 | IB_PORT_LED_INFO_SUP = 1 << 9, | |
207 | IB_PORT_SM_DISABLED = 1 << 10, | |
208 | IB_PORT_SYS_IMAGE_GUID_SUP = 1 << 11, | |
209 | IB_PORT_PKEY_SW_EXT_PORT_TRAP_SUP = 1 << 12, | |
210 | IB_PORT_CM_SUP = 1 << 16, | |
211 | IB_PORT_SNMP_TUNNEL_SUP = 1 << 17, | |
212 | IB_PORT_REINIT_SUP = 1 << 18, | |
213 | IB_PORT_DEVICE_MGMT_SUP = 1 << 19, | |
214 | IB_PORT_VENDOR_CLASS_SUP = 1 << 20, | |
215 | IB_PORT_DR_NOTICE_SUP = 1 << 21, | |
216 | IB_PORT_CAP_MASK_NOTICE_SUP = 1 << 22, | |
217 | IB_PORT_BOOT_MGMT_SUP = 1 << 23, | |
218 | IB_PORT_LINK_LATENCY_SUP = 1 << 24, | |
219 | IB_PORT_CLIENT_REG_SUP = 1 << 25 | |
220 | }; | |
221 | ||
222 | enum ib_port_width { | |
223 | IB_WIDTH_1X = 1, | |
224 | IB_WIDTH_4X = 2, | |
225 | IB_WIDTH_8X = 4, | |
226 | IB_WIDTH_12X = 8 | |
227 | }; | |
228 | ||
229 | static inline int ib_width_enum_to_int(enum ib_port_width width) | |
230 | { | |
231 | switch (width) { | |
232 | case IB_WIDTH_1X: return 1; | |
233 | case IB_WIDTH_4X: return 4; | |
234 | case IB_WIDTH_8X: return 8; | |
235 | case IB_WIDTH_12X: return 12; | |
236 | default: return -1; | |
237 | } | |
238 | } | |
239 | ||
7f624d02 SW |
240 | struct ib_protocol_stats { |
241 | /* TBD... */ | |
242 | }; | |
243 | ||
244 | struct iw_protocol_stats { | |
245 | u64 ipInReceives; | |
246 | u64 ipInHdrErrors; | |
247 | u64 ipInTooBigErrors; | |
248 | u64 ipInNoRoutes; | |
249 | u64 ipInAddrErrors; | |
250 | u64 ipInUnknownProtos; | |
251 | u64 ipInTruncatedPkts; | |
252 | u64 ipInDiscards; | |
253 | u64 ipInDelivers; | |
254 | u64 ipOutForwDatagrams; | |
255 | u64 ipOutRequests; | |
256 | u64 ipOutDiscards; | |
257 | u64 ipOutNoRoutes; | |
258 | u64 ipReasmTimeout; | |
259 | u64 ipReasmReqds; | |
260 | u64 ipReasmOKs; | |
261 | u64 ipReasmFails; | |
262 | u64 ipFragOKs; | |
263 | u64 ipFragFails; | |
264 | u64 ipFragCreates; | |
265 | u64 ipInMcastPkts; | |
266 | u64 ipOutMcastPkts; | |
267 | u64 ipInBcastPkts; | |
268 | u64 ipOutBcastPkts; | |
269 | ||
270 | u64 tcpRtoAlgorithm; | |
271 | u64 tcpRtoMin; | |
272 | u64 tcpRtoMax; | |
273 | u64 tcpMaxConn; | |
274 | u64 tcpActiveOpens; | |
275 | u64 tcpPassiveOpens; | |
276 | u64 tcpAttemptFails; | |
277 | u64 tcpEstabResets; | |
278 | u64 tcpCurrEstab; | |
279 | u64 tcpInSegs; | |
280 | u64 tcpOutSegs; | |
281 | u64 tcpRetransSegs; | |
282 | u64 tcpInErrs; | |
283 | u64 tcpOutRsts; | |
284 | }; | |
285 | ||
286 | union rdma_protocol_stats { | |
287 | struct ib_protocol_stats ib; | |
288 | struct iw_protocol_stats iw; | |
289 | }; | |
290 | ||
1da177e4 LT |
291 | struct ib_port_attr { |
292 | enum ib_port_state state; | |
293 | enum ib_mtu max_mtu; | |
294 | enum ib_mtu active_mtu; | |
295 | int gid_tbl_len; | |
296 | u32 port_cap_flags; | |
297 | u32 max_msg_sz; | |
298 | u32 bad_pkey_cntr; | |
299 | u32 qkey_viol_cntr; | |
300 | u16 pkey_tbl_len; | |
301 | u16 lid; | |
302 | u16 sm_lid; | |
303 | u8 lmc; | |
304 | u8 max_vl_num; | |
305 | u8 sm_sl; | |
306 | u8 subnet_timeout; | |
307 | u8 init_type_reply; | |
308 | u8 active_width; | |
309 | u8 active_speed; | |
310 | u8 phys_state; | |
311 | }; | |
312 | ||
313 | enum ib_device_modify_flags { | |
c5bcbbb9 RD |
314 | IB_DEVICE_MODIFY_SYS_IMAGE_GUID = 1 << 0, |
315 | IB_DEVICE_MODIFY_NODE_DESC = 1 << 1 | |
1da177e4 LT |
316 | }; |
317 | ||
318 | struct ib_device_modify { | |
319 | u64 sys_image_guid; | |
c5bcbbb9 | 320 | char node_desc[64]; |
1da177e4 LT |
321 | }; |
322 | ||
323 | enum ib_port_modify_flags { | |
324 | IB_PORT_SHUTDOWN = 1, | |
325 | IB_PORT_INIT_TYPE = (1<<2), | |
326 | IB_PORT_RESET_QKEY_CNTR = (1<<3) | |
327 | }; | |
328 | ||
329 | struct ib_port_modify { | |
330 | u32 set_port_cap_mask; | |
331 | u32 clr_port_cap_mask; | |
332 | u8 init_type; | |
333 | }; | |
334 | ||
335 | enum ib_event_type { | |
336 | IB_EVENT_CQ_ERR, | |
337 | IB_EVENT_QP_FATAL, | |
338 | IB_EVENT_QP_REQ_ERR, | |
339 | IB_EVENT_QP_ACCESS_ERR, | |
340 | IB_EVENT_COMM_EST, | |
341 | IB_EVENT_SQ_DRAINED, | |
342 | IB_EVENT_PATH_MIG, | |
343 | IB_EVENT_PATH_MIG_ERR, | |
344 | IB_EVENT_DEVICE_FATAL, | |
345 | IB_EVENT_PORT_ACTIVE, | |
346 | IB_EVENT_PORT_ERR, | |
347 | IB_EVENT_LID_CHANGE, | |
348 | IB_EVENT_PKEY_CHANGE, | |
d41fcc67 RD |
349 | IB_EVENT_SM_CHANGE, |
350 | IB_EVENT_SRQ_ERR, | |
351 | IB_EVENT_SRQ_LIMIT_REACHED, | |
63942c9a | 352 | IB_EVENT_QP_LAST_WQE_REACHED, |
761d90ed OG |
353 | IB_EVENT_CLIENT_REREGISTER, |
354 | IB_EVENT_GID_CHANGE, | |
1da177e4 LT |
355 | }; |
356 | ||
357 | struct ib_event { | |
358 | struct ib_device *device; | |
359 | union { | |
360 | struct ib_cq *cq; | |
361 | struct ib_qp *qp; | |
d41fcc67 | 362 | struct ib_srq *srq; |
1da177e4 LT |
363 | u8 port_num; |
364 | } element; | |
365 | enum ib_event_type event; | |
366 | }; | |
367 | ||
368 | struct ib_event_handler { | |
369 | struct ib_device *device; | |
370 | void (*handler)(struct ib_event_handler *, struct ib_event *); | |
371 | struct list_head list; | |
372 | }; | |
373 | ||
374 | #define INIT_IB_EVENT_HANDLER(_ptr, _device, _handler) \ | |
375 | do { \ | |
376 | (_ptr)->device = _device; \ | |
377 | (_ptr)->handler = _handler; \ | |
378 | INIT_LIST_HEAD(&(_ptr)->list); \ | |
379 | } while (0) | |
380 | ||
381 | struct ib_global_route { | |
382 | union ib_gid dgid; | |
383 | u32 flow_label; | |
384 | u8 sgid_index; | |
385 | u8 hop_limit; | |
386 | u8 traffic_class; | |
387 | }; | |
388 | ||
513789ed | 389 | struct ib_grh { |
97f52eb4 SH |
390 | __be32 version_tclass_flow; |
391 | __be16 paylen; | |
513789ed HR |
392 | u8 next_hdr; |
393 | u8 hop_limit; | |
394 | union ib_gid sgid; | |
395 | union ib_gid dgid; | |
396 | }; | |
397 | ||
1da177e4 LT |
398 | enum { |
399 | IB_MULTICAST_QPN = 0xffffff | |
400 | }; | |
401 | ||
f3a7c66b | 402 | #define IB_LID_PERMISSIVE cpu_to_be16(0xFFFF) |
97f52eb4 | 403 | |
1da177e4 LT |
404 | enum ib_ah_flags { |
405 | IB_AH_GRH = 1 | |
406 | }; | |
407 | ||
bf6a9e31 JM |
408 | enum ib_rate { |
409 | IB_RATE_PORT_CURRENT = 0, | |
410 | IB_RATE_2_5_GBPS = 2, | |
411 | IB_RATE_5_GBPS = 5, | |
412 | IB_RATE_10_GBPS = 3, | |
413 | IB_RATE_20_GBPS = 6, | |
414 | IB_RATE_30_GBPS = 4, | |
415 | IB_RATE_40_GBPS = 7, | |
416 | IB_RATE_60_GBPS = 8, | |
417 | IB_RATE_80_GBPS = 9, | |
418 | IB_RATE_120_GBPS = 10 | |
419 | }; | |
420 | ||
421 | /** | |
422 | * ib_rate_to_mult - Convert the IB rate enum to a multiple of the | |
423 | * base rate of 2.5 Gbit/sec. For example, IB_RATE_5_GBPS will be | |
424 | * converted to 2, since 5 Gbit/sec is 2 * 2.5 Gbit/sec. | |
425 | * @rate: rate to convert. | |
426 | */ | |
427 | int ib_rate_to_mult(enum ib_rate rate) __attribute_const__; | |
428 | ||
429 | /** | |
430 | * mult_to_ib_rate - Convert a multiple of 2.5 Gbit/sec to an IB rate | |
431 | * enum. | |
432 | * @mult: multiple to convert. | |
433 | */ | |
434 | enum ib_rate mult_to_ib_rate(int mult) __attribute_const__; | |
435 | ||
1da177e4 LT |
436 | struct ib_ah_attr { |
437 | struct ib_global_route grh; | |
438 | u16 dlid; | |
439 | u8 sl; | |
440 | u8 src_path_bits; | |
441 | u8 static_rate; | |
442 | u8 ah_flags; | |
443 | u8 port_num; | |
444 | }; | |
445 | ||
446 | enum ib_wc_status { | |
447 | IB_WC_SUCCESS, | |
448 | IB_WC_LOC_LEN_ERR, | |
449 | IB_WC_LOC_QP_OP_ERR, | |
450 | IB_WC_LOC_EEC_OP_ERR, | |
451 | IB_WC_LOC_PROT_ERR, | |
452 | IB_WC_WR_FLUSH_ERR, | |
453 | IB_WC_MW_BIND_ERR, | |
454 | IB_WC_BAD_RESP_ERR, | |
455 | IB_WC_LOC_ACCESS_ERR, | |
456 | IB_WC_REM_INV_REQ_ERR, | |
457 | IB_WC_REM_ACCESS_ERR, | |
458 | IB_WC_REM_OP_ERR, | |
459 | IB_WC_RETRY_EXC_ERR, | |
460 | IB_WC_RNR_RETRY_EXC_ERR, | |
461 | IB_WC_LOC_RDD_VIOL_ERR, | |
462 | IB_WC_REM_INV_RD_REQ_ERR, | |
463 | IB_WC_REM_ABORT_ERR, | |
464 | IB_WC_INV_EECN_ERR, | |
465 | IB_WC_INV_EEC_STATE_ERR, | |
466 | IB_WC_FATAL_ERR, | |
467 | IB_WC_RESP_TIMEOUT_ERR, | |
468 | IB_WC_GENERAL_ERR | |
469 | }; | |
470 | ||
471 | enum ib_wc_opcode { | |
472 | IB_WC_SEND, | |
473 | IB_WC_RDMA_WRITE, | |
474 | IB_WC_RDMA_READ, | |
475 | IB_WC_COMP_SWAP, | |
476 | IB_WC_FETCH_ADD, | |
477 | IB_WC_BIND_MW, | |
c93570f2 | 478 | IB_WC_LSO, |
00f7ec36 SW |
479 | IB_WC_LOCAL_INV, |
480 | IB_WC_FAST_REG_MR, | |
5e80ba8f VS |
481 | IB_WC_MASKED_COMP_SWAP, |
482 | IB_WC_MASKED_FETCH_ADD, | |
1da177e4 LT |
483 | /* |
484 | * Set value of IB_WC_RECV so consumers can test if a completion is a | |
485 | * receive by testing (opcode & IB_WC_RECV). | |
486 | */ | |
487 | IB_WC_RECV = 1 << 7, | |
488 | IB_WC_RECV_RDMA_WITH_IMM | |
489 | }; | |
490 | ||
491 | enum ib_wc_flags { | |
492 | IB_WC_GRH = 1, | |
00f7ec36 SW |
493 | IB_WC_WITH_IMM = (1<<1), |
494 | IB_WC_WITH_INVALIDATE = (1<<2), | |
1da177e4 LT |
495 | }; |
496 | ||
497 | struct ib_wc { | |
498 | u64 wr_id; | |
499 | enum ib_wc_status status; | |
500 | enum ib_wc_opcode opcode; | |
501 | u32 vendor_err; | |
502 | u32 byte_len; | |
062dbb69 | 503 | struct ib_qp *qp; |
00f7ec36 SW |
504 | union { |
505 | __be32 imm_data; | |
506 | u32 invalidate_rkey; | |
507 | } ex; | |
1da177e4 LT |
508 | u32 src_qp; |
509 | int wc_flags; | |
510 | u16 pkey_index; | |
511 | u16 slid; | |
512 | u8 sl; | |
513 | u8 dlid_path_bits; | |
514 | u8 port_num; /* valid only for DR SMPs on switches */ | |
e0605d91 | 515 | int csum_ok; |
1da177e4 LT |
516 | }; |
517 | ||
ed23a727 RD |
518 | enum ib_cq_notify_flags { |
519 | IB_CQ_SOLICITED = 1 << 0, | |
520 | IB_CQ_NEXT_COMP = 1 << 1, | |
521 | IB_CQ_SOLICITED_MASK = IB_CQ_SOLICITED | IB_CQ_NEXT_COMP, | |
522 | IB_CQ_REPORT_MISSED_EVENTS = 1 << 2, | |
1da177e4 LT |
523 | }; |
524 | ||
d41fcc67 RD |
525 | enum ib_srq_attr_mask { |
526 | IB_SRQ_MAX_WR = 1 << 0, | |
527 | IB_SRQ_LIMIT = 1 << 1, | |
528 | }; | |
529 | ||
530 | struct ib_srq_attr { | |
531 | u32 max_wr; | |
532 | u32 max_sge; | |
533 | u32 srq_limit; | |
534 | }; | |
535 | ||
536 | struct ib_srq_init_attr { | |
537 | void (*event_handler)(struct ib_event *, void *); | |
538 | void *srq_context; | |
539 | struct ib_srq_attr attr; | |
540 | }; | |
541 | ||
1da177e4 LT |
542 | struct ib_qp_cap { |
543 | u32 max_send_wr; | |
544 | u32 max_recv_wr; | |
545 | u32 max_send_sge; | |
546 | u32 max_recv_sge; | |
547 | u32 max_inline_data; | |
548 | }; | |
549 | ||
550 | enum ib_sig_type { | |
551 | IB_SIGNAL_ALL_WR, | |
552 | IB_SIGNAL_REQ_WR | |
553 | }; | |
554 | ||
555 | enum ib_qp_type { | |
556 | /* | |
557 | * IB_QPT_SMI and IB_QPT_GSI have to be the first two entries | |
558 | * here (and in that order) since the MAD layer uses them as | |
559 | * indices into a 2-entry table. | |
560 | */ | |
561 | IB_QPT_SMI, | |
562 | IB_QPT_GSI, | |
563 | ||
564 | IB_QPT_RC, | |
565 | IB_QPT_UC, | |
566 | IB_QPT_UD, | |
567 | IB_QPT_RAW_IPV6, | |
a2ebf07a | 568 | IB_QPT_RAW_ETHERTYPE |
1da177e4 LT |
569 | }; |
570 | ||
b846f25a | 571 | enum ib_qp_create_flags { |
47ee1b9f RL |
572 | IB_QP_CREATE_IPOIB_UD_LSO = 1 << 0, |
573 | IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK = 1 << 1, | |
b846f25a EC |
574 | }; |
575 | ||
1da177e4 LT |
576 | struct ib_qp_init_attr { |
577 | void (*event_handler)(struct ib_event *, void *); | |
578 | void *qp_context; | |
579 | struct ib_cq *send_cq; | |
580 | struct ib_cq *recv_cq; | |
581 | struct ib_srq *srq; | |
582 | struct ib_qp_cap cap; | |
583 | enum ib_sig_type sq_sig_type; | |
584 | enum ib_qp_type qp_type; | |
b846f25a | 585 | enum ib_qp_create_flags create_flags; |
1da177e4 LT |
586 | u8 port_num; /* special QP types only */ |
587 | }; | |
588 | ||
589 | enum ib_rnr_timeout { | |
590 | IB_RNR_TIMER_655_36 = 0, | |
591 | IB_RNR_TIMER_000_01 = 1, | |
592 | IB_RNR_TIMER_000_02 = 2, | |
593 | IB_RNR_TIMER_000_03 = 3, | |
594 | IB_RNR_TIMER_000_04 = 4, | |
595 | IB_RNR_TIMER_000_06 = 5, | |
596 | IB_RNR_TIMER_000_08 = 6, | |
597 | IB_RNR_TIMER_000_12 = 7, | |
598 | IB_RNR_TIMER_000_16 = 8, | |
599 | IB_RNR_TIMER_000_24 = 9, | |
600 | IB_RNR_TIMER_000_32 = 10, | |
601 | IB_RNR_TIMER_000_48 = 11, | |
602 | IB_RNR_TIMER_000_64 = 12, | |
603 | IB_RNR_TIMER_000_96 = 13, | |
604 | IB_RNR_TIMER_001_28 = 14, | |
605 | IB_RNR_TIMER_001_92 = 15, | |
606 | IB_RNR_TIMER_002_56 = 16, | |
607 | IB_RNR_TIMER_003_84 = 17, | |
608 | IB_RNR_TIMER_005_12 = 18, | |
609 | IB_RNR_TIMER_007_68 = 19, | |
610 | IB_RNR_TIMER_010_24 = 20, | |
611 | IB_RNR_TIMER_015_36 = 21, | |
612 | IB_RNR_TIMER_020_48 = 22, | |
613 | IB_RNR_TIMER_030_72 = 23, | |
614 | IB_RNR_TIMER_040_96 = 24, | |
615 | IB_RNR_TIMER_061_44 = 25, | |
616 | IB_RNR_TIMER_081_92 = 26, | |
617 | IB_RNR_TIMER_122_88 = 27, | |
618 | IB_RNR_TIMER_163_84 = 28, | |
619 | IB_RNR_TIMER_245_76 = 29, | |
620 | IB_RNR_TIMER_327_68 = 30, | |
621 | IB_RNR_TIMER_491_52 = 31 | |
622 | }; | |
623 | ||
624 | enum ib_qp_attr_mask { | |
625 | IB_QP_STATE = 1, | |
626 | IB_QP_CUR_STATE = (1<<1), | |
627 | IB_QP_EN_SQD_ASYNC_NOTIFY = (1<<2), | |
628 | IB_QP_ACCESS_FLAGS = (1<<3), | |
629 | IB_QP_PKEY_INDEX = (1<<4), | |
630 | IB_QP_PORT = (1<<5), | |
631 | IB_QP_QKEY = (1<<6), | |
632 | IB_QP_AV = (1<<7), | |
633 | IB_QP_PATH_MTU = (1<<8), | |
634 | IB_QP_TIMEOUT = (1<<9), | |
635 | IB_QP_RETRY_CNT = (1<<10), | |
636 | IB_QP_RNR_RETRY = (1<<11), | |
637 | IB_QP_RQ_PSN = (1<<12), | |
638 | IB_QP_MAX_QP_RD_ATOMIC = (1<<13), | |
639 | IB_QP_ALT_PATH = (1<<14), | |
640 | IB_QP_MIN_RNR_TIMER = (1<<15), | |
641 | IB_QP_SQ_PSN = (1<<16), | |
642 | IB_QP_MAX_DEST_RD_ATOMIC = (1<<17), | |
643 | IB_QP_PATH_MIG_STATE = (1<<18), | |
644 | IB_QP_CAP = (1<<19), | |
645 | IB_QP_DEST_QPN = (1<<20) | |
646 | }; | |
647 | ||
648 | enum ib_qp_state { | |
649 | IB_QPS_RESET, | |
650 | IB_QPS_INIT, | |
651 | IB_QPS_RTR, | |
652 | IB_QPS_RTS, | |
653 | IB_QPS_SQD, | |
654 | IB_QPS_SQE, | |
655 | IB_QPS_ERR | |
656 | }; | |
657 | ||
658 | enum ib_mig_state { | |
659 | IB_MIG_MIGRATED, | |
660 | IB_MIG_REARM, | |
661 | IB_MIG_ARMED | |
662 | }; | |
663 | ||
664 | struct ib_qp_attr { | |
665 | enum ib_qp_state qp_state; | |
666 | enum ib_qp_state cur_qp_state; | |
667 | enum ib_mtu path_mtu; | |
668 | enum ib_mig_state path_mig_state; | |
669 | u32 qkey; | |
670 | u32 rq_psn; | |
671 | u32 sq_psn; | |
672 | u32 dest_qp_num; | |
673 | int qp_access_flags; | |
674 | struct ib_qp_cap cap; | |
675 | struct ib_ah_attr ah_attr; | |
676 | struct ib_ah_attr alt_ah_attr; | |
677 | u16 pkey_index; | |
678 | u16 alt_pkey_index; | |
679 | u8 en_sqd_async_notify; | |
680 | u8 sq_draining; | |
681 | u8 max_rd_atomic; | |
682 | u8 max_dest_rd_atomic; | |
683 | u8 min_rnr_timer; | |
684 | u8 port_num; | |
685 | u8 timeout; | |
686 | u8 retry_cnt; | |
687 | u8 rnr_retry; | |
688 | u8 alt_port_num; | |
689 | u8 alt_timeout; | |
690 | }; | |
691 | ||
692 | enum ib_wr_opcode { | |
693 | IB_WR_RDMA_WRITE, | |
694 | IB_WR_RDMA_WRITE_WITH_IMM, | |
695 | IB_WR_SEND, | |
696 | IB_WR_SEND_WITH_IMM, | |
697 | IB_WR_RDMA_READ, | |
698 | IB_WR_ATOMIC_CMP_AND_SWP, | |
c93570f2 | 699 | IB_WR_ATOMIC_FETCH_AND_ADD, |
0f39cf3d RD |
700 | IB_WR_LSO, |
701 | IB_WR_SEND_WITH_INV, | |
00f7ec36 SW |
702 | IB_WR_RDMA_READ_WITH_INV, |
703 | IB_WR_LOCAL_INV, | |
704 | IB_WR_FAST_REG_MR, | |
5e80ba8f VS |
705 | IB_WR_MASKED_ATOMIC_CMP_AND_SWP, |
706 | IB_WR_MASKED_ATOMIC_FETCH_AND_ADD, | |
1da177e4 LT |
707 | }; |
708 | ||
709 | enum ib_send_flags { | |
710 | IB_SEND_FENCE = 1, | |
711 | IB_SEND_SIGNALED = (1<<1), | |
712 | IB_SEND_SOLICITED = (1<<2), | |
e0605d91 EC |
713 | IB_SEND_INLINE = (1<<3), |
714 | IB_SEND_IP_CSUM = (1<<4) | |
1da177e4 LT |
715 | }; |
716 | ||
717 | struct ib_sge { | |
718 | u64 addr; | |
719 | u32 length; | |
720 | u32 lkey; | |
721 | }; | |
722 | ||
00f7ec36 SW |
723 | struct ib_fast_reg_page_list { |
724 | struct ib_device *device; | |
725 | u64 *page_list; | |
726 | unsigned int max_page_list_len; | |
727 | }; | |
728 | ||
1da177e4 LT |
729 | struct ib_send_wr { |
730 | struct ib_send_wr *next; | |
731 | u64 wr_id; | |
732 | struct ib_sge *sg_list; | |
733 | int num_sge; | |
734 | enum ib_wr_opcode opcode; | |
735 | int send_flags; | |
0f39cf3d RD |
736 | union { |
737 | __be32 imm_data; | |
738 | u32 invalidate_rkey; | |
739 | } ex; | |
1da177e4 LT |
740 | union { |
741 | struct { | |
742 | u64 remote_addr; | |
743 | u32 rkey; | |
744 | } rdma; | |
745 | struct { | |
746 | u64 remote_addr; | |
747 | u64 compare_add; | |
748 | u64 swap; | |
5e80ba8f VS |
749 | u64 compare_add_mask; |
750 | u64 swap_mask; | |
1da177e4 LT |
751 | u32 rkey; |
752 | } atomic; | |
753 | struct { | |
754 | struct ib_ah *ah; | |
c93570f2 EC |
755 | void *header; |
756 | int hlen; | |
757 | int mss; | |
1da177e4 LT |
758 | u32 remote_qpn; |
759 | u32 remote_qkey; | |
1da177e4 LT |
760 | u16 pkey_index; /* valid for GSI only */ |
761 | u8 port_num; /* valid for DR SMPs on switch only */ | |
762 | } ud; | |
00f7ec36 SW |
763 | struct { |
764 | u64 iova_start; | |
765 | struct ib_fast_reg_page_list *page_list; | |
766 | unsigned int page_shift; | |
767 | unsigned int page_list_len; | |
768 | u32 length; | |
769 | int access_flags; | |
770 | u32 rkey; | |
771 | } fast_reg; | |
1da177e4 LT |
772 | } wr; |
773 | }; | |
774 | ||
775 | struct ib_recv_wr { | |
776 | struct ib_recv_wr *next; | |
777 | u64 wr_id; | |
778 | struct ib_sge *sg_list; | |
779 | int num_sge; | |
780 | }; | |
781 | ||
782 | enum ib_access_flags { | |
783 | IB_ACCESS_LOCAL_WRITE = 1, | |
784 | IB_ACCESS_REMOTE_WRITE = (1<<1), | |
785 | IB_ACCESS_REMOTE_READ = (1<<2), | |
786 | IB_ACCESS_REMOTE_ATOMIC = (1<<3), | |
787 | IB_ACCESS_MW_BIND = (1<<4) | |
788 | }; | |
789 | ||
790 | struct ib_phys_buf { | |
791 | u64 addr; | |
792 | u64 size; | |
793 | }; | |
794 | ||
795 | struct ib_mr_attr { | |
796 | struct ib_pd *pd; | |
797 | u64 device_virt_addr; | |
798 | u64 size; | |
799 | int mr_access_flags; | |
800 | u32 lkey; | |
801 | u32 rkey; | |
802 | }; | |
803 | ||
804 | enum ib_mr_rereg_flags { | |
805 | IB_MR_REREG_TRANS = 1, | |
806 | IB_MR_REREG_PD = (1<<1), | |
807 | IB_MR_REREG_ACCESS = (1<<2) | |
808 | }; | |
809 | ||
810 | struct ib_mw_bind { | |
811 | struct ib_mr *mr; | |
812 | u64 wr_id; | |
813 | u64 addr; | |
814 | u32 length; | |
815 | int send_flags; | |
816 | int mw_access_flags; | |
817 | }; | |
818 | ||
819 | struct ib_fmr_attr { | |
820 | int max_pages; | |
821 | int max_maps; | |
d36f34aa | 822 | u8 page_shift; |
1da177e4 LT |
823 | }; |
824 | ||
e2773c06 RD |
825 | struct ib_ucontext { |
826 | struct ib_device *device; | |
827 | struct list_head pd_list; | |
828 | struct list_head mr_list; | |
829 | struct list_head mw_list; | |
830 | struct list_head cq_list; | |
831 | struct list_head qp_list; | |
832 | struct list_head srq_list; | |
833 | struct list_head ah_list; | |
f7c6a7b5 | 834 | int closing; |
e2773c06 RD |
835 | }; |
836 | ||
837 | struct ib_uobject { | |
838 | u64 user_handle; /* handle given to us by userspace */ | |
839 | struct ib_ucontext *context; /* associated user context */ | |
9ead190b | 840 | void *object; /* containing object */ |
e2773c06 | 841 | struct list_head list; /* link to context's list */ |
b3d636b0 | 842 | int id; /* index into kernel idr */ |
9ead190b RD |
843 | struct kref ref; |
844 | struct rw_semaphore mutex; /* protects .live */ | |
845 | int live; | |
e2773c06 RD |
846 | }; |
847 | ||
e2773c06 RD |
848 | struct ib_udata { |
849 | void __user *inbuf; | |
850 | void __user *outbuf; | |
851 | size_t inlen; | |
852 | size_t outlen; | |
853 | }; | |
854 | ||
1da177e4 | 855 | struct ib_pd { |
e2773c06 RD |
856 | struct ib_device *device; |
857 | struct ib_uobject *uobject; | |
858 | atomic_t usecnt; /* count all resources */ | |
1da177e4 LT |
859 | }; |
860 | ||
861 | struct ib_ah { | |
862 | struct ib_device *device; | |
863 | struct ib_pd *pd; | |
e2773c06 | 864 | struct ib_uobject *uobject; |
1da177e4 LT |
865 | }; |
866 | ||
867 | typedef void (*ib_comp_handler)(struct ib_cq *cq, void *cq_context); | |
868 | ||
869 | struct ib_cq { | |
e2773c06 RD |
870 | struct ib_device *device; |
871 | struct ib_uobject *uobject; | |
872 | ib_comp_handler comp_handler; | |
873 | void (*event_handler)(struct ib_event *, void *); | |
4deccd6d | 874 | void *cq_context; |
e2773c06 RD |
875 | int cqe; |
876 | atomic_t usecnt; /* count number of work queues */ | |
1da177e4 LT |
877 | }; |
878 | ||
879 | struct ib_srq { | |
d41fcc67 RD |
880 | struct ib_device *device; |
881 | struct ib_pd *pd; | |
882 | struct ib_uobject *uobject; | |
883 | void (*event_handler)(struct ib_event *, void *); | |
884 | void *srq_context; | |
1da177e4 LT |
885 | atomic_t usecnt; |
886 | }; | |
887 | ||
888 | struct ib_qp { | |
889 | struct ib_device *device; | |
890 | struct ib_pd *pd; | |
891 | struct ib_cq *send_cq; | |
892 | struct ib_cq *recv_cq; | |
893 | struct ib_srq *srq; | |
e2773c06 | 894 | struct ib_uobject *uobject; |
1da177e4 LT |
895 | void (*event_handler)(struct ib_event *, void *); |
896 | void *qp_context; | |
897 | u32 qp_num; | |
898 | enum ib_qp_type qp_type; | |
899 | }; | |
900 | ||
901 | struct ib_mr { | |
e2773c06 RD |
902 | struct ib_device *device; |
903 | struct ib_pd *pd; | |
904 | struct ib_uobject *uobject; | |
905 | u32 lkey; | |
906 | u32 rkey; | |
907 | atomic_t usecnt; /* count number of MWs */ | |
1da177e4 LT |
908 | }; |
909 | ||
910 | struct ib_mw { | |
911 | struct ib_device *device; | |
912 | struct ib_pd *pd; | |
e2773c06 | 913 | struct ib_uobject *uobject; |
1da177e4 LT |
914 | u32 rkey; |
915 | }; | |
916 | ||
917 | struct ib_fmr { | |
918 | struct ib_device *device; | |
919 | struct ib_pd *pd; | |
920 | struct list_head list; | |
921 | u32 lkey; | |
922 | u32 rkey; | |
923 | }; | |
924 | ||
925 | struct ib_mad; | |
926 | struct ib_grh; | |
927 | ||
928 | enum ib_process_mad_flags { | |
929 | IB_MAD_IGNORE_MKEY = 1, | |
930 | IB_MAD_IGNORE_BKEY = 2, | |
931 | IB_MAD_IGNORE_ALL = IB_MAD_IGNORE_MKEY | IB_MAD_IGNORE_BKEY | |
932 | }; | |
933 | ||
934 | enum ib_mad_result { | |
935 | IB_MAD_RESULT_FAILURE = 0, /* (!SUCCESS is the important flag) */ | |
936 | IB_MAD_RESULT_SUCCESS = 1 << 0, /* MAD was successfully processed */ | |
937 | IB_MAD_RESULT_REPLY = 1 << 1, /* Reply packet needs to be sent */ | |
938 | IB_MAD_RESULT_CONSUMED = 1 << 2 /* Packet consumed: stop processing */ | |
939 | }; | |
940 | ||
941 | #define IB_DEVICE_NAME_MAX 64 | |
942 | ||
943 | struct ib_cache { | |
944 | rwlock_t lock; | |
945 | struct ib_event_handler event_handler; | |
946 | struct ib_pkey_cache **pkey_cache; | |
947 | struct ib_gid_cache **gid_cache; | |
6fb9cdbf | 948 | u8 *lmc_cache; |
1da177e4 LT |
949 | }; |
950 | ||
9b513090 RC |
951 | struct ib_dma_mapping_ops { |
952 | int (*mapping_error)(struct ib_device *dev, | |
953 | u64 dma_addr); | |
954 | u64 (*map_single)(struct ib_device *dev, | |
955 | void *ptr, size_t size, | |
956 | enum dma_data_direction direction); | |
957 | void (*unmap_single)(struct ib_device *dev, | |
958 | u64 addr, size_t size, | |
959 | enum dma_data_direction direction); | |
960 | u64 (*map_page)(struct ib_device *dev, | |
961 | struct page *page, unsigned long offset, | |
962 | size_t size, | |
963 | enum dma_data_direction direction); | |
964 | void (*unmap_page)(struct ib_device *dev, | |
965 | u64 addr, size_t size, | |
966 | enum dma_data_direction direction); | |
967 | int (*map_sg)(struct ib_device *dev, | |
968 | struct scatterlist *sg, int nents, | |
969 | enum dma_data_direction direction); | |
970 | void (*unmap_sg)(struct ib_device *dev, | |
971 | struct scatterlist *sg, int nents, | |
972 | enum dma_data_direction direction); | |
973 | u64 (*dma_address)(struct ib_device *dev, | |
974 | struct scatterlist *sg); | |
975 | unsigned int (*dma_len)(struct ib_device *dev, | |
976 | struct scatterlist *sg); | |
977 | void (*sync_single_for_cpu)(struct ib_device *dev, | |
978 | u64 dma_handle, | |
979 | size_t size, | |
4deccd6d | 980 | enum dma_data_direction dir); |
9b513090 RC |
981 | void (*sync_single_for_device)(struct ib_device *dev, |
982 | u64 dma_handle, | |
983 | size_t size, | |
984 | enum dma_data_direction dir); | |
985 | void *(*alloc_coherent)(struct ib_device *dev, | |
986 | size_t size, | |
987 | u64 *dma_handle, | |
988 | gfp_t flag); | |
989 | void (*free_coherent)(struct ib_device *dev, | |
990 | size_t size, void *cpu_addr, | |
991 | u64 dma_handle); | |
992 | }; | |
993 | ||
07ebafba TT |
994 | struct iw_cm_verbs; |
995 | ||
1da177e4 LT |
996 | struct ib_device { |
997 | struct device *dma_device; | |
998 | ||
999 | char name[IB_DEVICE_NAME_MAX]; | |
1000 | ||
1001 | struct list_head event_handler_list; | |
1002 | spinlock_t event_handler_lock; | |
1003 | ||
17a55f79 | 1004 | spinlock_t client_data_lock; |
1da177e4 LT |
1005 | struct list_head core_list; |
1006 | struct list_head client_data_list; | |
1da177e4 LT |
1007 | |
1008 | struct ib_cache cache; | |
5eb620c8 YE |
1009 | int *pkey_tbl_len; |
1010 | int *gid_tbl_len; | |
1da177e4 | 1011 | |
f4fd0b22 MT |
1012 | int num_comp_vectors; |
1013 | ||
07ebafba TT |
1014 | struct iw_cm_verbs *iwcm; |
1015 | ||
7f624d02 SW |
1016 | int (*get_protocol_stats)(struct ib_device *device, |
1017 | union rdma_protocol_stats *stats); | |
1da177e4 LT |
1018 | int (*query_device)(struct ib_device *device, |
1019 | struct ib_device_attr *device_attr); | |
1020 | int (*query_port)(struct ib_device *device, | |
1021 | u8 port_num, | |
1022 | struct ib_port_attr *port_attr); | |
a3f5adaf EC |
1023 | enum rdma_link_layer (*get_link_layer)(struct ib_device *device, |
1024 | u8 port_num); | |
1da177e4 LT |
1025 | int (*query_gid)(struct ib_device *device, |
1026 | u8 port_num, int index, | |
1027 | union ib_gid *gid); | |
1028 | int (*query_pkey)(struct ib_device *device, | |
1029 | u8 port_num, u16 index, u16 *pkey); | |
1030 | int (*modify_device)(struct ib_device *device, | |
1031 | int device_modify_mask, | |
1032 | struct ib_device_modify *device_modify); | |
1033 | int (*modify_port)(struct ib_device *device, | |
1034 | u8 port_num, int port_modify_mask, | |
1035 | struct ib_port_modify *port_modify); | |
e2773c06 RD |
1036 | struct ib_ucontext * (*alloc_ucontext)(struct ib_device *device, |
1037 | struct ib_udata *udata); | |
1038 | int (*dealloc_ucontext)(struct ib_ucontext *context); | |
1039 | int (*mmap)(struct ib_ucontext *context, | |
1040 | struct vm_area_struct *vma); | |
1041 | struct ib_pd * (*alloc_pd)(struct ib_device *device, | |
1042 | struct ib_ucontext *context, | |
1043 | struct ib_udata *udata); | |
1da177e4 LT |
1044 | int (*dealloc_pd)(struct ib_pd *pd); |
1045 | struct ib_ah * (*create_ah)(struct ib_pd *pd, | |
1046 | struct ib_ah_attr *ah_attr); | |
1047 | int (*modify_ah)(struct ib_ah *ah, | |
1048 | struct ib_ah_attr *ah_attr); | |
1049 | int (*query_ah)(struct ib_ah *ah, | |
1050 | struct ib_ah_attr *ah_attr); | |
1051 | int (*destroy_ah)(struct ib_ah *ah); | |
d41fcc67 RD |
1052 | struct ib_srq * (*create_srq)(struct ib_pd *pd, |
1053 | struct ib_srq_init_attr *srq_init_attr, | |
1054 | struct ib_udata *udata); | |
1055 | int (*modify_srq)(struct ib_srq *srq, | |
1056 | struct ib_srq_attr *srq_attr, | |
9bc57e2d RC |
1057 | enum ib_srq_attr_mask srq_attr_mask, |
1058 | struct ib_udata *udata); | |
d41fcc67 RD |
1059 | int (*query_srq)(struct ib_srq *srq, |
1060 | struct ib_srq_attr *srq_attr); | |
1061 | int (*destroy_srq)(struct ib_srq *srq); | |
1062 | int (*post_srq_recv)(struct ib_srq *srq, | |
1063 | struct ib_recv_wr *recv_wr, | |
1064 | struct ib_recv_wr **bad_recv_wr); | |
1da177e4 | 1065 | struct ib_qp * (*create_qp)(struct ib_pd *pd, |
e2773c06 RD |
1066 | struct ib_qp_init_attr *qp_init_attr, |
1067 | struct ib_udata *udata); | |
1da177e4 LT |
1068 | int (*modify_qp)(struct ib_qp *qp, |
1069 | struct ib_qp_attr *qp_attr, | |
9bc57e2d RC |
1070 | int qp_attr_mask, |
1071 | struct ib_udata *udata); | |
1da177e4 LT |
1072 | int (*query_qp)(struct ib_qp *qp, |
1073 | struct ib_qp_attr *qp_attr, | |
1074 | int qp_attr_mask, | |
1075 | struct ib_qp_init_attr *qp_init_attr); | |
1076 | int (*destroy_qp)(struct ib_qp *qp); | |
1077 | int (*post_send)(struct ib_qp *qp, | |
1078 | struct ib_send_wr *send_wr, | |
1079 | struct ib_send_wr **bad_send_wr); | |
1080 | int (*post_recv)(struct ib_qp *qp, | |
1081 | struct ib_recv_wr *recv_wr, | |
1082 | struct ib_recv_wr **bad_recv_wr); | |
e2773c06 | 1083 | struct ib_cq * (*create_cq)(struct ib_device *device, int cqe, |
f4fd0b22 | 1084 | int comp_vector, |
e2773c06 RD |
1085 | struct ib_ucontext *context, |
1086 | struct ib_udata *udata); | |
2dd57162 EC |
1087 | int (*modify_cq)(struct ib_cq *cq, u16 cq_count, |
1088 | u16 cq_period); | |
1da177e4 | 1089 | int (*destroy_cq)(struct ib_cq *cq); |
33b9b3ee RD |
1090 | int (*resize_cq)(struct ib_cq *cq, int cqe, |
1091 | struct ib_udata *udata); | |
1da177e4 LT |
1092 | int (*poll_cq)(struct ib_cq *cq, int num_entries, |
1093 | struct ib_wc *wc); | |
1094 | int (*peek_cq)(struct ib_cq *cq, int wc_cnt); | |
1095 | int (*req_notify_cq)(struct ib_cq *cq, | |
ed23a727 | 1096 | enum ib_cq_notify_flags flags); |
1da177e4 LT |
1097 | int (*req_ncomp_notif)(struct ib_cq *cq, |
1098 | int wc_cnt); | |
1099 | struct ib_mr * (*get_dma_mr)(struct ib_pd *pd, | |
1100 | int mr_access_flags); | |
1101 | struct ib_mr * (*reg_phys_mr)(struct ib_pd *pd, | |
1102 | struct ib_phys_buf *phys_buf_array, | |
1103 | int num_phys_buf, | |
1104 | int mr_access_flags, | |
1105 | u64 *iova_start); | |
e2773c06 | 1106 | struct ib_mr * (*reg_user_mr)(struct ib_pd *pd, |
f7c6a7b5 RD |
1107 | u64 start, u64 length, |
1108 | u64 virt_addr, | |
e2773c06 RD |
1109 | int mr_access_flags, |
1110 | struct ib_udata *udata); | |
1da177e4 LT |
1111 | int (*query_mr)(struct ib_mr *mr, |
1112 | struct ib_mr_attr *mr_attr); | |
1113 | int (*dereg_mr)(struct ib_mr *mr); | |
00f7ec36 SW |
1114 | struct ib_mr * (*alloc_fast_reg_mr)(struct ib_pd *pd, |
1115 | int max_page_list_len); | |
1116 | struct ib_fast_reg_page_list * (*alloc_fast_reg_page_list)(struct ib_device *device, | |
1117 | int page_list_len); | |
1118 | void (*free_fast_reg_page_list)(struct ib_fast_reg_page_list *page_list); | |
1da177e4 LT |
1119 | int (*rereg_phys_mr)(struct ib_mr *mr, |
1120 | int mr_rereg_mask, | |
1121 | struct ib_pd *pd, | |
1122 | struct ib_phys_buf *phys_buf_array, | |
1123 | int num_phys_buf, | |
1124 | int mr_access_flags, | |
1125 | u64 *iova_start); | |
1126 | struct ib_mw * (*alloc_mw)(struct ib_pd *pd); | |
1127 | int (*bind_mw)(struct ib_qp *qp, | |
1128 | struct ib_mw *mw, | |
1129 | struct ib_mw_bind *mw_bind); | |
1130 | int (*dealloc_mw)(struct ib_mw *mw); | |
1131 | struct ib_fmr * (*alloc_fmr)(struct ib_pd *pd, | |
1132 | int mr_access_flags, | |
1133 | struct ib_fmr_attr *fmr_attr); | |
1134 | int (*map_phys_fmr)(struct ib_fmr *fmr, | |
1135 | u64 *page_list, int list_len, | |
1136 | u64 iova); | |
1137 | int (*unmap_fmr)(struct list_head *fmr_list); | |
1138 | int (*dealloc_fmr)(struct ib_fmr *fmr); | |
1139 | int (*attach_mcast)(struct ib_qp *qp, | |
1140 | union ib_gid *gid, | |
1141 | u16 lid); | |
1142 | int (*detach_mcast)(struct ib_qp *qp, | |
1143 | union ib_gid *gid, | |
1144 | u16 lid); | |
1145 | int (*process_mad)(struct ib_device *device, | |
1146 | int process_mad_flags, | |
1147 | u8 port_num, | |
1148 | struct ib_wc *in_wc, | |
1149 | struct ib_grh *in_grh, | |
1150 | struct ib_mad *in_mad, | |
1151 | struct ib_mad *out_mad); | |
1152 | ||
9b513090 RC |
1153 | struct ib_dma_mapping_ops *dma_ops; |
1154 | ||
e2773c06 | 1155 | struct module *owner; |
f4e91eb4 | 1156 | struct device dev; |
35be0681 | 1157 | struct kobject *ports_parent; |
1da177e4 LT |
1158 | struct list_head port_list; |
1159 | ||
1160 | enum { | |
1161 | IB_DEV_UNINITIALIZED, | |
1162 | IB_DEV_REGISTERED, | |
1163 | IB_DEV_UNREGISTERED | |
1164 | } reg_state; | |
1165 | ||
274c0891 | 1166 | int uverbs_abi_ver; |
17a55f79 | 1167 | u64 uverbs_cmd_mask; |
274c0891 | 1168 | |
c5bcbbb9 | 1169 | char node_desc[64]; |
cf311cd4 | 1170 | __be64 node_guid; |
96f15c03 | 1171 | u32 local_dma_lkey; |
1da177e4 LT |
1172 | u8 node_type; |
1173 | u8 phys_port_cnt; | |
1174 | }; | |
1175 | ||
1176 | struct ib_client { | |
1177 | char *name; | |
1178 | void (*add) (struct ib_device *); | |
1179 | void (*remove)(struct ib_device *); | |
1180 | ||
1181 | struct list_head list; | |
1182 | }; | |
1183 | ||
1184 | struct ib_device *ib_alloc_device(size_t size); | |
1185 | void ib_dealloc_device(struct ib_device *device); | |
1186 | ||
9a6edb60 RC |
1187 | int ib_register_device(struct ib_device *device, |
1188 | int (*port_callback)(struct ib_device *, | |
1189 | u8, struct kobject *)); | |
1da177e4 LT |
1190 | void ib_unregister_device(struct ib_device *device); |
1191 | ||
1192 | int ib_register_client (struct ib_client *client); | |
1193 | void ib_unregister_client(struct ib_client *client); | |
1194 | ||
1195 | void *ib_get_client_data(struct ib_device *device, struct ib_client *client); | |
1196 | void ib_set_client_data(struct ib_device *device, struct ib_client *client, | |
1197 | void *data); | |
1198 | ||
e2773c06 RD |
1199 | static inline int ib_copy_from_udata(void *dest, struct ib_udata *udata, size_t len) |
1200 | { | |
1201 | return copy_from_user(dest, udata->inbuf, len) ? -EFAULT : 0; | |
1202 | } | |
1203 | ||
1204 | static inline int ib_copy_to_udata(struct ib_udata *udata, void *src, size_t len) | |
1205 | { | |
1206 | return copy_to_user(udata->outbuf, src, len) ? -EFAULT : 0; | |
1207 | } | |
1208 | ||
8a51866f RD |
1209 | /** |
1210 | * ib_modify_qp_is_ok - Check that the supplied attribute mask | |
1211 | * contains all required attributes and no attributes not allowed for | |
1212 | * the given QP state transition. | |
1213 | * @cur_state: Current QP state | |
1214 | * @next_state: Next QP state | |
1215 | * @type: QP type | |
1216 | * @mask: Mask of supplied QP attributes | |
1217 | * | |
1218 | * This function is a helper function that a low-level driver's | |
1219 | * modify_qp method can use to validate the consumer's input. It | |
1220 | * checks that cur_state and next_state are valid QP states, that a | |
1221 | * transition from cur_state to next_state is allowed by the IB spec, | |
1222 | * and that the attribute mask supplied is allowed for the transition. | |
1223 | */ | |
1224 | int ib_modify_qp_is_ok(enum ib_qp_state cur_state, enum ib_qp_state next_state, | |
1225 | enum ib_qp_type type, enum ib_qp_attr_mask mask); | |
1226 | ||
1da177e4 LT |
1227 | int ib_register_event_handler (struct ib_event_handler *event_handler); |
1228 | int ib_unregister_event_handler(struct ib_event_handler *event_handler); | |
1229 | void ib_dispatch_event(struct ib_event *event); | |
1230 | ||
1231 | int ib_query_device(struct ib_device *device, | |
1232 | struct ib_device_attr *device_attr); | |
1233 | ||
1234 | int ib_query_port(struct ib_device *device, | |
1235 | u8 port_num, struct ib_port_attr *port_attr); | |
1236 | ||
a3f5adaf EC |
1237 | enum rdma_link_layer rdma_port_get_link_layer(struct ib_device *device, |
1238 | u8 port_num); | |
1239 | ||
1da177e4 LT |
1240 | int ib_query_gid(struct ib_device *device, |
1241 | u8 port_num, int index, union ib_gid *gid); | |
1242 | ||
1243 | int ib_query_pkey(struct ib_device *device, | |
1244 | u8 port_num, u16 index, u16 *pkey); | |
1245 | ||
1246 | int ib_modify_device(struct ib_device *device, | |
1247 | int device_modify_mask, | |
1248 | struct ib_device_modify *device_modify); | |
1249 | ||
1250 | int ib_modify_port(struct ib_device *device, | |
1251 | u8 port_num, int port_modify_mask, | |
1252 | struct ib_port_modify *port_modify); | |
1253 | ||
5eb620c8 YE |
1254 | int ib_find_gid(struct ib_device *device, union ib_gid *gid, |
1255 | u8 *port_num, u16 *index); | |
1256 | ||
1257 | int ib_find_pkey(struct ib_device *device, | |
1258 | u8 port_num, u16 pkey, u16 *index); | |
1259 | ||
1da177e4 LT |
1260 | /** |
1261 | * ib_alloc_pd - Allocates an unused protection domain. | |
1262 | * @device: The device on which to allocate the protection domain. | |
1263 | * | |
1264 | * A protection domain object provides an association between QPs, shared | |
1265 | * receive queues, address handles, memory regions, and memory windows. | |
1266 | */ | |
1267 | struct ib_pd *ib_alloc_pd(struct ib_device *device); | |
1268 | ||
1269 | /** | |
1270 | * ib_dealloc_pd - Deallocates a protection domain. | |
1271 | * @pd: The protection domain to deallocate. | |
1272 | */ | |
1273 | int ib_dealloc_pd(struct ib_pd *pd); | |
1274 | ||
1275 | /** | |
1276 | * ib_create_ah - Creates an address handle for the given address vector. | |
1277 | * @pd: The protection domain associated with the address handle. | |
1278 | * @ah_attr: The attributes of the address vector. | |
1279 | * | |
1280 | * The address handle is used to reference a local or global destination | |
1281 | * in all UD QP post sends. | |
1282 | */ | |
1283 | struct ib_ah *ib_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr); | |
1284 | ||
4e00d694 SH |
1285 | /** |
1286 | * ib_init_ah_from_wc - Initializes address handle attributes from a | |
1287 | * work completion. | |
1288 | * @device: Device on which the received message arrived. | |
1289 | * @port_num: Port on which the received message arrived. | |
1290 | * @wc: Work completion associated with the received message. | |
1291 | * @grh: References the received global route header. This parameter is | |
1292 | * ignored unless the work completion indicates that the GRH is valid. | |
1293 | * @ah_attr: Returned attributes that can be used when creating an address | |
1294 | * handle for replying to the message. | |
1295 | */ | |
1296 | int ib_init_ah_from_wc(struct ib_device *device, u8 port_num, struct ib_wc *wc, | |
1297 | struct ib_grh *grh, struct ib_ah_attr *ah_attr); | |
1298 | ||
513789ed HR |
1299 | /** |
1300 | * ib_create_ah_from_wc - Creates an address handle associated with the | |
1301 | * sender of the specified work completion. | |
1302 | * @pd: The protection domain associated with the address handle. | |
1303 | * @wc: Work completion information associated with a received message. | |
1304 | * @grh: References the received global route header. This parameter is | |
1305 | * ignored unless the work completion indicates that the GRH is valid. | |
1306 | * @port_num: The outbound port number to associate with the address. | |
1307 | * | |
1308 | * The address handle is used to reference a local or global destination | |
1309 | * in all UD QP post sends. | |
1310 | */ | |
1311 | struct ib_ah *ib_create_ah_from_wc(struct ib_pd *pd, struct ib_wc *wc, | |
1312 | struct ib_grh *grh, u8 port_num); | |
1313 | ||
1da177e4 LT |
1314 | /** |
1315 | * ib_modify_ah - Modifies the address vector associated with an address | |
1316 | * handle. | |
1317 | * @ah: The address handle to modify. | |
1318 | * @ah_attr: The new address vector attributes to associate with the | |
1319 | * address handle. | |
1320 | */ | |
1321 | int ib_modify_ah(struct ib_ah *ah, struct ib_ah_attr *ah_attr); | |
1322 | ||
1323 | /** | |
1324 | * ib_query_ah - Queries the address vector associated with an address | |
1325 | * handle. | |
1326 | * @ah: The address handle to query. | |
1327 | * @ah_attr: The address vector attributes associated with the address | |
1328 | * handle. | |
1329 | */ | |
1330 | int ib_query_ah(struct ib_ah *ah, struct ib_ah_attr *ah_attr); | |
1331 | ||
1332 | /** | |
1333 | * ib_destroy_ah - Destroys an address handle. | |
1334 | * @ah: The address handle to destroy. | |
1335 | */ | |
1336 | int ib_destroy_ah(struct ib_ah *ah); | |
1337 | ||
d41fcc67 RD |
1338 | /** |
1339 | * ib_create_srq - Creates a SRQ associated with the specified protection | |
1340 | * domain. | |
1341 | * @pd: The protection domain associated with the SRQ. | |
abb6e9ba DB |
1342 | * @srq_init_attr: A list of initial attributes required to create the |
1343 | * SRQ. If SRQ creation succeeds, then the attributes are updated to | |
1344 | * the actual capabilities of the created SRQ. | |
d41fcc67 RD |
1345 | * |
1346 | * srq_attr->max_wr and srq_attr->max_sge are read the determine the | |
1347 | * requested size of the SRQ, and set to the actual values allocated | |
1348 | * on return. If ib_create_srq() succeeds, then max_wr and max_sge | |
1349 | * will always be at least as large as the requested values. | |
1350 | */ | |
1351 | struct ib_srq *ib_create_srq(struct ib_pd *pd, | |
1352 | struct ib_srq_init_attr *srq_init_attr); | |
1353 | ||
1354 | /** | |
1355 | * ib_modify_srq - Modifies the attributes for the specified SRQ. | |
1356 | * @srq: The SRQ to modify. | |
1357 | * @srq_attr: On input, specifies the SRQ attributes to modify. On output, | |
1358 | * the current values of selected SRQ attributes are returned. | |
1359 | * @srq_attr_mask: A bit-mask used to specify which attributes of the SRQ | |
1360 | * are being modified. | |
1361 | * | |
1362 | * The mask may contain IB_SRQ_MAX_WR to resize the SRQ and/or | |
1363 | * IB_SRQ_LIMIT to set the SRQ's limit and request notification when | |
1364 | * the number of receives queued drops below the limit. | |
1365 | */ | |
1366 | int ib_modify_srq(struct ib_srq *srq, | |
1367 | struct ib_srq_attr *srq_attr, | |
1368 | enum ib_srq_attr_mask srq_attr_mask); | |
1369 | ||
1370 | /** | |
1371 | * ib_query_srq - Returns the attribute list and current values for the | |
1372 | * specified SRQ. | |
1373 | * @srq: The SRQ to query. | |
1374 | * @srq_attr: The attributes of the specified SRQ. | |
1375 | */ | |
1376 | int ib_query_srq(struct ib_srq *srq, | |
1377 | struct ib_srq_attr *srq_attr); | |
1378 | ||
1379 | /** | |
1380 | * ib_destroy_srq - Destroys the specified SRQ. | |
1381 | * @srq: The SRQ to destroy. | |
1382 | */ | |
1383 | int ib_destroy_srq(struct ib_srq *srq); | |
1384 | ||
1385 | /** | |
1386 | * ib_post_srq_recv - Posts a list of work requests to the specified SRQ. | |
1387 | * @srq: The SRQ to post the work request on. | |
1388 | * @recv_wr: A list of work requests to post on the receive queue. | |
1389 | * @bad_recv_wr: On an immediate failure, this parameter will reference | |
1390 | * the work request that failed to be posted on the QP. | |
1391 | */ | |
1392 | static inline int ib_post_srq_recv(struct ib_srq *srq, | |
1393 | struct ib_recv_wr *recv_wr, | |
1394 | struct ib_recv_wr **bad_recv_wr) | |
1395 | { | |
1396 | return srq->device->post_srq_recv(srq, recv_wr, bad_recv_wr); | |
1397 | } | |
1398 | ||
1da177e4 LT |
1399 | /** |
1400 | * ib_create_qp - Creates a QP associated with the specified protection | |
1401 | * domain. | |
1402 | * @pd: The protection domain associated with the QP. | |
abb6e9ba DB |
1403 | * @qp_init_attr: A list of initial attributes required to create the |
1404 | * QP. If QP creation succeeds, then the attributes are updated to | |
1405 | * the actual capabilities of the created QP. | |
1da177e4 LT |
1406 | */ |
1407 | struct ib_qp *ib_create_qp(struct ib_pd *pd, | |
1408 | struct ib_qp_init_attr *qp_init_attr); | |
1409 | ||
1410 | /** | |
1411 | * ib_modify_qp - Modifies the attributes for the specified QP and then | |
1412 | * transitions the QP to the given state. | |
1413 | * @qp: The QP to modify. | |
1414 | * @qp_attr: On input, specifies the QP attributes to modify. On output, | |
1415 | * the current values of selected QP attributes are returned. | |
1416 | * @qp_attr_mask: A bit-mask used to specify which attributes of the QP | |
1417 | * are being modified. | |
1418 | */ | |
1419 | int ib_modify_qp(struct ib_qp *qp, | |
1420 | struct ib_qp_attr *qp_attr, | |
1421 | int qp_attr_mask); | |
1422 | ||
1423 | /** | |
1424 | * ib_query_qp - Returns the attribute list and current values for the | |
1425 | * specified QP. | |
1426 | * @qp: The QP to query. | |
1427 | * @qp_attr: The attributes of the specified QP. | |
1428 | * @qp_attr_mask: A bit-mask used to select specific attributes to query. | |
1429 | * @qp_init_attr: Additional attributes of the selected QP. | |
1430 | * | |
1431 | * The qp_attr_mask may be used to limit the query to gathering only the | |
1432 | * selected attributes. | |
1433 | */ | |
1434 | int ib_query_qp(struct ib_qp *qp, | |
1435 | struct ib_qp_attr *qp_attr, | |
1436 | int qp_attr_mask, | |
1437 | struct ib_qp_init_attr *qp_init_attr); | |
1438 | ||
1439 | /** | |
1440 | * ib_destroy_qp - Destroys the specified QP. | |
1441 | * @qp: The QP to destroy. | |
1442 | */ | |
1443 | int ib_destroy_qp(struct ib_qp *qp); | |
1444 | ||
1445 | /** | |
1446 | * ib_post_send - Posts a list of work requests to the send queue of | |
1447 | * the specified QP. | |
1448 | * @qp: The QP to post the work request on. | |
1449 | * @send_wr: A list of work requests to post on the send queue. | |
1450 | * @bad_send_wr: On an immediate failure, this parameter will reference | |
1451 | * the work request that failed to be posted on the QP. | |
55464d46 BVA |
1452 | * |
1453 | * While IBA Vol. 1 section 11.4.1.1 specifies that if an immediate | |
1454 | * error is returned, the QP state shall not be affected, | |
1455 | * ib_post_send() will return an immediate error after queueing any | |
1456 | * earlier work requests in the list. | |
1da177e4 LT |
1457 | */ |
1458 | static inline int ib_post_send(struct ib_qp *qp, | |
1459 | struct ib_send_wr *send_wr, | |
1460 | struct ib_send_wr **bad_send_wr) | |
1461 | { | |
1462 | return qp->device->post_send(qp, send_wr, bad_send_wr); | |
1463 | } | |
1464 | ||
1465 | /** | |
1466 | * ib_post_recv - Posts a list of work requests to the receive queue of | |
1467 | * the specified QP. | |
1468 | * @qp: The QP to post the work request on. | |
1469 | * @recv_wr: A list of work requests to post on the receive queue. | |
1470 | * @bad_recv_wr: On an immediate failure, this parameter will reference | |
1471 | * the work request that failed to be posted on the QP. | |
1472 | */ | |
1473 | static inline int ib_post_recv(struct ib_qp *qp, | |
1474 | struct ib_recv_wr *recv_wr, | |
1475 | struct ib_recv_wr **bad_recv_wr) | |
1476 | { | |
1477 | return qp->device->post_recv(qp, recv_wr, bad_recv_wr); | |
1478 | } | |
1479 | ||
1480 | /** | |
1481 | * ib_create_cq - Creates a CQ on the specified device. | |
1482 | * @device: The device on which to create the CQ. | |
1483 | * @comp_handler: A user-specified callback that is invoked when a | |
1484 | * completion event occurs on the CQ. | |
1485 | * @event_handler: A user-specified callback that is invoked when an | |
1486 | * asynchronous event not associated with a completion occurs on the CQ. | |
1487 | * @cq_context: Context associated with the CQ returned to the user via | |
1488 | * the associated completion and event handlers. | |
1489 | * @cqe: The minimum size of the CQ. | |
f4fd0b22 MT |
1490 | * @comp_vector - Completion vector used to signal completion events. |
1491 | * Must be >= 0 and < context->num_comp_vectors. | |
1da177e4 LT |
1492 | * |
1493 | * Users can examine the cq structure to determine the actual CQ size. | |
1494 | */ | |
1495 | struct ib_cq *ib_create_cq(struct ib_device *device, | |
1496 | ib_comp_handler comp_handler, | |
1497 | void (*event_handler)(struct ib_event *, void *), | |
f4fd0b22 | 1498 | void *cq_context, int cqe, int comp_vector); |
1da177e4 LT |
1499 | |
1500 | /** | |
1501 | * ib_resize_cq - Modifies the capacity of the CQ. | |
1502 | * @cq: The CQ to resize. | |
1503 | * @cqe: The minimum size of the CQ. | |
1504 | * | |
1505 | * Users can examine the cq structure to determine the actual CQ size. | |
1506 | */ | |
1507 | int ib_resize_cq(struct ib_cq *cq, int cqe); | |
1508 | ||
2dd57162 EC |
1509 | /** |
1510 | * ib_modify_cq - Modifies moderation params of the CQ | |
1511 | * @cq: The CQ to modify. | |
1512 | * @cq_count: number of CQEs that will trigger an event | |
1513 | * @cq_period: max period of time in usec before triggering an event | |
1514 | * | |
1515 | */ | |
1516 | int ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period); | |
1517 | ||
1da177e4 LT |
1518 | /** |
1519 | * ib_destroy_cq - Destroys the specified CQ. | |
1520 | * @cq: The CQ to destroy. | |
1521 | */ | |
1522 | int ib_destroy_cq(struct ib_cq *cq); | |
1523 | ||
1524 | /** | |
1525 | * ib_poll_cq - poll a CQ for completion(s) | |
1526 | * @cq:the CQ being polled | |
1527 | * @num_entries:maximum number of completions to return | |
1528 | * @wc:array of at least @num_entries &struct ib_wc where completions | |
1529 | * will be returned | |
1530 | * | |
1531 | * Poll a CQ for (possibly multiple) completions. If the return value | |
1532 | * is < 0, an error occurred. If the return value is >= 0, it is the | |
1533 | * number of completions returned. If the return value is | |
1534 | * non-negative and < num_entries, then the CQ was emptied. | |
1535 | */ | |
1536 | static inline int ib_poll_cq(struct ib_cq *cq, int num_entries, | |
1537 | struct ib_wc *wc) | |
1538 | { | |
1539 | return cq->device->poll_cq(cq, num_entries, wc); | |
1540 | } | |
1541 | ||
1542 | /** | |
1543 | * ib_peek_cq - Returns the number of unreaped completions currently | |
1544 | * on the specified CQ. | |
1545 | * @cq: The CQ to peek. | |
1546 | * @wc_cnt: A minimum number of unreaped completions to check for. | |
1547 | * | |
1548 | * If the number of unreaped completions is greater than or equal to wc_cnt, | |
1549 | * this function returns wc_cnt, otherwise, it returns the actual number of | |
1550 | * unreaped completions. | |
1551 | */ | |
1552 | int ib_peek_cq(struct ib_cq *cq, int wc_cnt); | |
1553 | ||
1554 | /** | |
1555 | * ib_req_notify_cq - Request completion notification on a CQ. | |
1556 | * @cq: The CQ to generate an event for. | |
ed23a727 RD |
1557 | * @flags: |
1558 | * Must contain exactly one of %IB_CQ_SOLICITED or %IB_CQ_NEXT_COMP | |
1559 | * to request an event on the next solicited event or next work | |
1560 | * completion at any type, respectively. %IB_CQ_REPORT_MISSED_EVENTS | |
1561 | * may also be |ed in to request a hint about missed events, as | |
1562 | * described below. | |
1563 | * | |
1564 | * Return Value: | |
1565 | * < 0 means an error occurred while requesting notification | |
1566 | * == 0 means notification was requested successfully, and if | |
1567 | * IB_CQ_REPORT_MISSED_EVENTS was passed in, then no events | |
1568 | * were missed and it is safe to wait for another event. In | |
1569 | * this case is it guaranteed that any work completions added | |
1570 | * to the CQ since the last CQ poll will trigger a completion | |
1571 | * notification event. | |
1572 | * > 0 is only returned if IB_CQ_REPORT_MISSED_EVENTS was passed | |
1573 | * in. It means that the consumer must poll the CQ again to | |
1574 | * make sure it is empty to avoid missing an event because of a | |
1575 | * race between requesting notification and an entry being | |
1576 | * added to the CQ. This return value means it is possible | |
1577 | * (but not guaranteed) that a work completion has been added | |
1578 | * to the CQ since the last poll without triggering a | |
1579 | * completion notification event. | |
1da177e4 LT |
1580 | */ |
1581 | static inline int ib_req_notify_cq(struct ib_cq *cq, | |
ed23a727 | 1582 | enum ib_cq_notify_flags flags) |
1da177e4 | 1583 | { |
ed23a727 | 1584 | return cq->device->req_notify_cq(cq, flags); |
1da177e4 LT |
1585 | } |
1586 | ||
1587 | /** | |
1588 | * ib_req_ncomp_notif - Request completion notification when there are | |
1589 | * at least the specified number of unreaped completions on the CQ. | |
1590 | * @cq: The CQ to generate an event for. | |
1591 | * @wc_cnt: The number of unreaped completions that should be on the | |
1592 | * CQ before an event is generated. | |
1593 | */ | |
1594 | static inline int ib_req_ncomp_notif(struct ib_cq *cq, int wc_cnt) | |
1595 | { | |
1596 | return cq->device->req_ncomp_notif ? | |
1597 | cq->device->req_ncomp_notif(cq, wc_cnt) : | |
1598 | -ENOSYS; | |
1599 | } | |
1600 | ||
1601 | /** | |
1602 | * ib_get_dma_mr - Returns a memory region for system memory that is | |
1603 | * usable for DMA. | |
1604 | * @pd: The protection domain associated with the memory region. | |
1605 | * @mr_access_flags: Specifies the memory access rights. | |
9b513090 RC |
1606 | * |
1607 | * Note that the ib_dma_*() functions defined below must be used | |
1608 | * to create/destroy addresses used with the Lkey or Rkey returned | |
1609 | * by ib_get_dma_mr(). | |
1da177e4 LT |
1610 | */ |
1611 | struct ib_mr *ib_get_dma_mr(struct ib_pd *pd, int mr_access_flags); | |
1612 | ||
9b513090 RC |
1613 | /** |
1614 | * ib_dma_mapping_error - check a DMA addr for error | |
1615 | * @dev: The device for which the dma_addr was created | |
1616 | * @dma_addr: The DMA address to check | |
1617 | */ | |
1618 | static inline int ib_dma_mapping_error(struct ib_device *dev, u64 dma_addr) | |
1619 | { | |
d1998ef3 BC |
1620 | if (dev->dma_ops) |
1621 | return dev->dma_ops->mapping_error(dev, dma_addr); | |
8d8bb39b | 1622 | return dma_mapping_error(dev->dma_device, dma_addr); |
9b513090 RC |
1623 | } |
1624 | ||
1625 | /** | |
1626 | * ib_dma_map_single - Map a kernel virtual address to DMA address | |
1627 | * @dev: The device for which the dma_addr is to be created | |
1628 | * @cpu_addr: The kernel virtual address | |
1629 | * @size: The size of the region in bytes | |
1630 | * @direction: The direction of the DMA | |
1631 | */ | |
1632 | static inline u64 ib_dma_map_single(struct ib_device *dev, | |
1633 | void *cpu_addr, size_t size, | |
1634 | enum dma_data_direction direction) | |
1635 | { | |
d1998ef3 BC |
1636 | if (dev->dma_ops) |
1637 | return dev->dma_ops->map_single(dev, cpu_addr, size, direction); | |
1638 | return dma_map_single(dev->dma_device, cpu_addr, size, direction); | |
9b513090 RC |
1639 | } |
1640 | ||
1641 | /** | |
1642 | * ib_dma_unmap_single - Destroy a mapping created by ib_dma_map_single() | |
1643 | * @dev: The device for which the DMA address was created | |
1644 | * @addr: The DMA address | |
1645 | * @size: The size of the region in bytes | |
1646 | * @direction: The direction of the DMA | |
1647 | */ | |
1648 | static inline void ib_dma_unmap_single(struct ib_device *dev, | |
1649 | u64 addr, size_t size, | |
1650 | enum dma_data_direction direction) | |
1651 | { | |
d1998ef3 BC |
1652 | if (dev->dma_ops) |
1653 | dev->dma_ops->unmap_single(dev, addr, size, direction); | |
1654 | else | |
9b513090 RC |
1655 | dma_unmap_single(dev->dma_device, addr, size, direction); |
1656 | } | |
1657 | ||
cb9fbc5c AK |
1658 | static inline u64 ib_dma_map_single_attrs(struct ib_device *dev, |
1659 | void *cpu_addr, size_t size, | |
1660 | enum dma_data_direction direction, | |
1661 | struct dma_attrs *attrs) | |
1662 | { | |
1663 | return dma_map_single_attrs(dev->dma_device, cpu_addr, size, | |
1664 | direction, attrs); | |
1665 | } | |
1666 | ||
1667 | static inline void ib_dma_unmap_single_attrs(struct ib_device *dev, | |
1668 | u64 addr, size_t size, | |
1669 | enum dma_data_direction direction, | |
1670 | struct dma_attrs *attrs) | |
1671 | { | |
1672 | return dma_unmap_single_attrs(dev->dma_device, addr, size, | |
1673 | direction, attrs); | |
1674 | } | |
1675 | ||
9b513090 RC |
1676 | /** |
1677 | * ib_dma_map_page - Map a physical page to DMA address | |
1678 | * @dev: The device for which the dma_addr is to be created | |
1679 | * @page: The page to be mapped | |
1680 | * @offset: The offset within the page | |
1681 | * @size: The size of the region in bytes | |
1682 | * @direction: The direction of the DMA | |
1683 | */ | |
1684 | static inline u64 ib_dma_map_page(struct ib_device *dev, | |
1685 | struct page *page, | |
1686 | unsigned long offset, | |
1687 | size_t size, | |
1688 | enum dma_data_direction direction) | |
1689 | { | |
d1998ef3 BC |
1690 | if (dev->dma_ops) |
1691 | return dev->dma_ops->map_page(dev, page, offset, size, direction); | |
1692 | return dma_map_page(dev->dma_device, page, offset, size, direction); | |
9b513090 RC |
1693 | } |
1694 | ||
1695 | /** | |
1696 | * ib_dma_unmap_page - Destroy a mapping created by ib_dma_map_page() | |
1697 | * @dev: The device for which the DMA address was created | |
1698 | * @addr: The DMA address | |
1699 | * @size: The size of the region in bytes | |
1700 | * @direction: The direction of the DMA | |
1701 | */ | |
1702 | static inline void ib_dma_unmap_page(struct ib_device *dev, | |
1703 | u64 addr, size_t size, | |
1704 | enum dma_data_direction direction) | |
1705 | { | |
d1998ef3 BC |
1706 | if (dev->dma_ops) |
1707 | dev->dma_ops->unmap_page(dev, addr, size, direction); | |
1708 | else | |
9b513090 RC |
1709 | dma_unmap_page(dev->dma_device, addr, size, direction); |
1710 | } | |
1711 | ||
1712 | /** | |
1713 | * ib_dma_map_sg - Map a scatter/gather list to DMA addresses | |
1714 | * @dev: The device for which the DMA addresses are to be created | |
1715 | * @sg: The array of scatter/gather entries | |
1716 | * @nents: The number of scatter/gather entries | |
1717 | * @direction: The direction of the DMA | |
1718 | */ | |
1719 | static inline int ib_dma_map_sg(struct ib_device *dev, | |
1720 | struct scatterlist *sg, int nents, | |
1721 | enum dma_data_direction direction) | |
1722 | { | |
d1998ef3 BC |
1723 | if (dev->dma_ops) |
1724 | return dev->dma_ops->map_sg(dev, sg, nents, direction); | |
1725 | return dma_map_sg(dev->dma_device, sg, nents, direction); | |
9b513090 RC |
1726 | } |
1727 | ||
1728 | /** | |
1729 | * ib_dma_unmap_sg - Unmap a scatter/gather list of DMA addresses | |
1730 | * @dev: The device for which the DMA addresses were created | |
1731 | * @sg: The array of scatter/gather entries | |
1732 | * @nents: The number of scatter/gather entries | |
1733 | * @direction: The direction of the DMA | |
1734 | */ | |
1735 | static inline void ib_dma_unmap_sg(struct ib_device *dev, | |
1736 | struct scatterlist *sg, int nents, | |
1737 | enum dma_data_direction direction) | |
1738 | { | |
d1998ef3 BC |
1739 | if (dev->dma_ops) |
1740 | dev->dma_ops->unmap_sg(dev, sg, nents, direction); | |
1741 | else | |
9b513090 RC |
1742 | dma_unmap_sg(dev->dma_device, sg, nents, direction); |
1743 | } | |
1744 | ||
cb9fbc5c AK |
1745 | static inline int ib_dma_map_sg_attrs(struct ib_device *dev, |
1746 | struct scatterlist *sg, int nents, | |
1747 | enum dma_data_direction direction, | |
1748 | struct dma_attrs *attrs) | |
1749 | { | |
1750 | return dma_map_sg_attrs(dev->dma_device, sg, nents, direction, attrs); | |
1751 | } | |
1752 | ||
1753 | static inline void ib_dma_unmap_sg_attrs(struct ib_device *dev, | |
1754 | struct scatterlist *sg, int nents, | |
1755 | enum dma_data_direction direction, | |
1756 | struct dma_attrs *attrs) | |
1757 | { | |
1758 | dma_unmap_sg_attrs(dev->dma_device, sg, nents, direction, attrs); | |
1759 | } | |
9b513090 RC |
1760 | /** |
1761 | * ib_sg_dma_address - Return the DMA address from a scatter/gather entry | |
1762 | * @dev: The device for which the DMA addresses were created | |
1763 | * @sg: The scatter/gather entry | |
1764 | */ | |
1765 | static inline u64 ib_sg_dma_address(struct ib_device *dev, | |
1766 | struct scatterlist *sg) | |
1767 | { | |
d1998ef3 BC |
1768 | if (dev->dma_ops) |
1769 | return dev->dma_ops->dma_address(dev, sg); | |
1770 | return sg_dma_address(sg); | |
9b513090 RC |
1771 | } |
1772 | ||
1773 | /** | |
1774 | * ib_sg_dma_len - Return the DMA length from a scatter/gather entry | |
1775 | * @dev: The device for which the DMA addresses were created | |
1776 | * @sg: The scatter/gather entry | |
1777 | */ | |
1778 | static inline unsigned int ib_sg_dma_len(struct ib_device *dev, | |
1779 | struct scatterlist *sg) | |
1780 | { | |
d1998ef3 BC |
1781 | if (dev->dma_ops) |
1782 | return dev->dma_ops->dma_len(dev, sg); | |
1783 | return sg_dma_len(sg); | |
9b513090 RC |
1784 | } |
1785 | ||
1786 | /** | |
1787 | * ib_dma_sync_single_for_cpu - Prepare DMA region to be accessed by CPU | |
1788 | * @dev: The device for which the DMA address was created | |
1789 | * @addr: The DMA address | |
1790 | * @size: The size of the region in bytes | |
1791 | * @dir: The direction of the DMA | |
1792 | */ | |
1793 | static inline void ib_dma_sync_single_for_cpu(struct ib_device *dev, | |
1794 | u64 addr, | |
1795 | size_t size, | |
1796 | enum dma_data_direction dir) | |
1797 | { | |
d1998ef3 BC |
1798 | if (dev->dma_ops) |
1799 | dev->dma_ops->sync_single_for_cpu(dev, addr, size, dir); | |
1800 | else | |
9b513090 RC |
1801 | dma_sync_single_for_cpu(dev->dma_device, addr, size, dir); |
1802 | } | |
1803 | ||
1804 | /** | |
1805 | * ib_dma_sync_single_for_device - Prepare DMA region to be accessed by device | |
1806 | * @dev: The device for which the DMA address was created | |
1807 | * @addr: The DMA address | |
1808 | * @size: The size of the region in bytes | |
1809 | * @dir: The direction of the DMA | |
1810 | */ | |
1811 | static inline void ib_dma_sync_single_for_device(struct ib_device *dev, | |
1812 | u64 addr, | |
1813 | size_t size, | |
1814 | enum dma_data_direction dir) | |
1815 | { | |
d1998ef3 BC |
1816 | if (dev->dma_ops) |
1817 | dev->dma_ops->sync_single_for_device(dev, addr, size, dir); | |
1818 | else | |
9b513090 RC |
1819 | dma_sync_single_for_device(dev->dma_device, addr, size, dir); |
1820 | } | |
1821 | ||
1822 | /** | |
1823 | * ib_dma_alloc_coherent - Allocate memory and map it for DMA | |
1824 | * @dev: The device for which the DMA address is requested | |
1825 | * @size: The size of the region to allocate in bytes | |
1826 | * @dma_handle: A pointer for returning the DMA address of the region | |
1827 | * @flag: memory allocator flags | |
1828 | */ | |
1829 | static inline void *ib_dma_alloc_coherent(struct ib_device *dev, | |
1830 | size_t size, | |
1831 | u64 *dma_handle, | |
1832 | gfp_t flag) | |
1833 | { | |
d1998ef3 BC |
1834 | if (dev->dma_ops) |
1835 | return dev->dma_ops->alloc_coherent(dev, size, dma_handle, flag); | |
c59a3da1 RD |
1836 | else { |
1837 | dma_addr_t handle; | |
1838 | void *ret; | |
1839 | ||
1840 | ret = dma_alloc_coherent(dev->dma_device, size, &handle, flag); | |
1841 | *dma_handle = handle; | |
1842 | return ret; | |
1843 | } | |
9b513090 RC |
1844 | } |
1845 | ||
1846 | /** | |
1847 | * ib_dma_free_coherent - Free memory allocated by ib_dma_alloc_coherent() | |
1848 | * @dev: The device for which the DMA addresses were allocated | |
1849 | * @size: The size of the region | |
1850 | * @cpu_addr: the address returned by ib_dma_alloc_coherent() | |
1851 | * @dma_handle: the DMA address returned by ib_dma_alloc_coherent() | |
1852 | */ | |
1853 | static inline void ib_dma_free_coherent(struct ib_device *dev, | |
1854 | size_t size, void *cpu_addr, | |
1855 | u64 dma_handle) | |
1856 | { | |
d1998ef3 BC |
1857 | if (dev->dma_ops) |
1858 | dev->dma_ops->free_coherent(dev, size, cpu_addr, dma_handle); | |
1859 | else | |
9b513090 RC |
1860 | dma_free_coherent(dev->dma_device, size, cpu_addr, dma_handle); |
1861 | } | |
1862 | ||
1da177e4 LT |
1863 | /** |
1864 | * ib_reg_phys_mr - Prepares a virtually addressed memory region for use | |
1865 | * by an HCA. | |
1866 | * @pd: The protection domain associated assigned to the registered region. | |
1867 | * @phys_buf_array: Specifies a list of physical buffers to use in the | |
1868 | * memory region. | |
1869 | * @num_phys_buf: Specifies the size of the phys_buf_array. | |
1870 | * @mr_access_flags: Specifies the memory access rights. | |
1871 | * @iova_start: The offset of the region's starting I/O virtual address. | |
1872 | */ | |
1873 | struct ib_mr *ib_reg_phys_mr(struct ib_pd *pd, | |
1874 | struct ib_phys_buf *phys_buf_array, | |
1875 | int num_phys_buf, | |
1876 | int mr_access_flags, | |
1877 | u64 *iova_start); | |
1878 | ||
1879 | /** | |
1880 | * ib_rereg_phys_mr - Modifies the attributes of an existing memory region. | |
1881 | * Conceptually, this call performs the functions deregister memory region | |
1882 | * followed by register physical memory region. Where possible, | |
1883 | * resources are reused instead of deallocated and reallocated. | |
1884 | * @mr: The memory region to modify. | |
1885 | * @mr_rereg_mask: A bit-mask used to indicate which of the following | |
1886 | * properties of the memory region are being modified. | |
1887 | * @pd: If %IB_MR_REREG_PD is set in mr_rereg_mask, this field specifies | |
1888 | * the new protection domain to associated with the memory region, | |
1889 | * otherwise, this parameter is ignored. | |
1890 | * @phys_buf_array: If %IB_MR_REREG_TRANS is set in mr_rereg_mask, this | |
1891 | * field specifies a list of physical buffers to use in the new | |
1892 | * translation, otherwise, this parameter is ignored. | |
1893 | * @num_phys_buf: If %IB_MR_REREG_TRANS is set in mr_rereg_mask, this | |
1894 | * field specifies the size of the phys_buf_array, otherwise, this | |
1895 | * parameter is ignored. | |
1896 | * @mr_access_flags: If %IB_MR_REREG_ACCESS is set in mr_rereg_mask, this | |
1897 | * field specifies the new memory access rights, otherwise, this | |
1898 | * parameter is ignored. | |
1899 | * @iova_start: The offset of the region's starting I/O virtual address. | |
1900 | */ | |
1901 | int ib_rereg_phys_mr(struct ib_mr *mr, | |
1902 | int mr_rereg_mask, | |
1903 | struct ib_pd *pd, | |
1904 | struct ib_phys_buf *phys_buf_array, | |
1905 | int num_phys_buf, | |
1906 | int mr_access_flags, | |
1907 | u64 *iova_start); | |
1908 | ||
1909 | /** | |
1910 | * ib_query_mr - Retrieves information about a specific memory region. | |
1911 | * @mr: The memory region to retrieve information about. | |
1912 | * @mr_attr: The attributes of the specified memory region. | |
1913 | */ | |
1914 | int ib_query_mr(struct ib_mr *mr, struct ib_mr_attr *mr_attr); | |
1915 | ||
1916 | /** | |
1917 | * ib_dereg_mr - Deregisters a memory region and removes it from the | |
1918 | * HCA translation table. | |
1919 | * @mr: The memory region to deregister. | |
1920 | */ | |
1921 | int ib_dereg_mr(struct ib_mr *mr); | |
1922 | ||
00f7ec36 SW |
1923 | /** |
1924 | * ib_alloc_fast_reg_mr - Allocates memory region usable with the | |
1925 | * IB_WR_FAST_REG_MR send work request. | |
1926 | * @pd: The protection domain associated with the region. | |
1927 | * @max_page_list_len: requested max physical buffer list length to be | |
1928 | * used with fast register work requests for this MR. | |
1929 | */ | |
1930 | struct ib_mr *ib_alloc_fast_reg_mr(struct ib_pd *pd, int max_page_list_len); | |
1931 | ||
1932 | /** | |
1933 | * ib_alloc_fast_reg_page_list - Allocates a page list array | |
1934 | * @device - ib device pointer. | |
1935 | * @page_list_len - size of the page list array to be allocated. | |
1936 | * | |
1937 | * This allocates and returns a struct ib_fast_reg_page_list * and a | |
1938 | * page_list array that is at least page_list_len in size. The actual | |
1939 | * size is returned in max_page_list_len. The caller is responsible | |
1940 | * for initializing the contents of the page_list array before posting | |
1941 | * a send work request with the IB_WC_FAST_REG_MR opcode. | |
1942 | * | |
1943 | * The page_list array entries must be translated using one of the | |
1944 | * ib_dma_*() functions just like the addresses passed to | |
1945 | * ib_map_phys_fmr(). Once the ib_post_send() is issued, the struct | |
1946 | * ib_fast_reg_page_list must not be modified by the caller until the | |
1947 | * IB_WC_FAST_REG_MR work request completes. | |
1948 | */ | |
1949 | struct ib_fast_reg_page_list *ib_alloc_fast_reg_page_list( | |
1950 | struct ib_device *device, int page_list_len); | |
1951 | ||
1952 | /** | |
1953 | * ib_free_fast_reg_page_list - Deallocates a previously allocated | |
1954 | * page list array. | |
1955 | * @page_list - struct ib_fast_reg_page_list pointer to be deallocated. | |
1956 | */ | |
1957 | void ib_free_fast_reg_page_list(struct ib_fast_reg_page_list *page_list); | |
1958 | ||
1959 | /** | |
1960 | * ib_update_fast_reg_key - updates the key portion of the fast_reg MR | |
1961 | * R_Key and L_Key. | |
1962 | * @mr - struct ib_mr pointer to be updated. | |
1963 | * @newkey - new key to be used. | |
1964 | */ | |
1965 | static inline void ib_update_fast_reg_key(struct ib_mr *mr, u8 newkey) | |
1966 | { | |
1967 | mr->lkey = (mr->lkey & 0xffffff00) | newkey; | |
1968 | mr->rkey = (mr->rkey & 0xffffff00) | newkey; | |
1969 | } | |
1970 | ||
1da177e4 LT |
1971 | /** |
1972 | * ib_alloc_mw - Allocates a memory window. | |
1973 | * @pd: The protection domain associated with the memory window. | |
1974 | */ | |
1975 | struct ib_mw *ib_alloc_mw(struct ib_pd *pd); | |
1976 | ||
1977 | /** | |
1978 | * ib_bind_mw - Posts a work request to the send queue of the specified | |
1979 | * QP, which binds the memory window to the given address range and | |
1980 | * remote access attributes. | |
1981 | * @qp: QP to post the bind work request on. | |
1982 | * @mw: The memory window to bind. | |
1983 | * @mw_bind: Specifies information about the memory window, including | |
1984 | * its address range, remote access rights, and associated memory region. | |
1985 | */ | |
1986 | static inline int ib_bind_mw(struct ib_qp *qp, | |
1987 | struct ib_mw *mw, | |
1988 | struct ib_mw_bind *mw_bind) | |
1989 | { | |
1990 | /* XXX reference counting in corresponding MR? */ | |
1991 | return mw->device->bind_mw ? | |
1992 | mw->device->bind_mw(qp, mw, mw_bind) : | |
1993 | -ENOSYS; | |
1994 | } | |
1995 | ||
1996 | /** | |
1997 | * ib_dealloc_mw - Deallocates a memory window. | |
1998 | * @mw: The memory window to deallocate. | |
1999 | */ | |
2000 | int ib_dealloc_mw(struct ib_mw *mw); | |
2001 | ||
2002 | /** | |
2003 | * ib_alloc_fmr - Allocates a unmapped fast memory region. | |
2004 | * @pd: The protection domain associated with the unmapped region. | |
2005 | * @mr_access_flags: Specifies the memory access rights. | |
2006 | * @fmr_attr: Attributes of the unmapped region. | |
2007 | * | |
2008 | * A fast memory region must be mapped before it can be used as part of | |
2009 | * a work request. | |
2010 | */ | |
2011 | struct ib_fmr *ib_alloc_fmr(struct ib_pd *pd, | |
2012 | int mr_access_flags, | |
2013 | struct ib_fmr_attr *fmr_attr); | |
2014 | ||
2015 | /** | |
2016 | * ib_map_phys_fmr - Maps a list of physical pages to a fast memory region. | |
2017 | * @fmr: The fast memory region to associate with the pages. | |
2018 | * @page_list: An array of physical pages to map to the fast memory region. | |
2019 | * @list_len: The number of pages in page_list. | |
2020 | * @iova: The I/O virtual address to use with the mapped region. | |
2021 | */ | |
2022 | static inline int ib_map_phys_fmr(struct ib_fmr *fmr, | |
2023 | u64 *page_list, int list_len, | |
2024 | u64 iova) | |
2025 | { | |
2026 | return fmr->device->map_phys_fmr(fmr, page_list, list_len, iova); | |
2027 | } | |
2028 | ||
2029 | /** | |
2030 | * ib_unmap_fmr - Removes the mapping from a list of fast memory regions. | |
2031 | * @fmr_list: A linked list of fast memory regions to unmap. | |
2032 | */ | |
2033 | int ib_unmap_fmr(struct list_head *fmr_list); | |
2034 | ||
2035 | /** | |
2036 | * ib_dealloc_fmr - Deallocates a fast memory region. | |
2037 | * @fmr: The fast memory region to deallocate. | |
2038 | */ | |
2039 | int ib_dealloc_fmr(struct ib_fmr *fmr); | |
2040 | ||
2041 | /** | |
2042 | * ib_attach_mcast - Attaches the specified QP to a multicast group. | |
2043 | * @qp: QP to attach to the multicast group. The QP must be type | |
2044 | * IB_QPT_UD. | |
2045 | * @gid: Multicast group GID. | |
2046 | * @lid: Multicast group LID in host byte order. | |
2047 | * | |
2048 | * In order to send and receive multicast packets, subnet | |
2049 | * administration must have created the multicast group and configured | |
2050 | * the fabric appropriately. The port associated with the specified | |
2051 | * QP must also be a member of the multicast group. | |
2052 | */ | |
2053 | int ib_attach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid); | |
2054 | ||
2055 | /** | |
2056 | * ib_detach_mcast - Detaches the specified QP from a multicast group. | |
2057 | * @qp: QP to detach from the multicast group. | |
2058 | * @gid: Multicast group GID. | |
2059 | * @lid: Multicast group LID in host byte order. | |
2060 | */ | |
2061 | int ib_detach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid); | |
2062 | ||
2063 | #endif /* IB_VERBS_H */ |