aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/infiniband/include/ib_mad.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/infiniband/include/ib_mad.h')
-rw-r--r--drivers/infiniband/include/ib_mad.h579
1 files changed, 0 insertions, 579 deletions
diff --git a/drivers/infiniband/include/ib_mad.h b/drivers/infiniband/include/ib_mad.h
deleted file mode 100644
index 9fcf6fc09035..000000000000
--- a/drivers/infiniband/include/ib_mad.h
+++ /dev/null
@@ -1,579 +0,0 @@
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.
7 *
8 * This software is available to you under a choice of one of two
9 * licenses. You may choose to be licensed under the terms of the GNU
10 * General Public License (GPL) Version 2, available from the file
11 * COPYING in the main directory of this source tree, or the
12 * OpenIB.org BSD license below:
13 *
14 * Redistribution and use in source and binary forms, with or
15 * without modification, are permitted provided that the following
16 * conditions are met:
17 *
18 * - Redistributions of source code must retain the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer.
21 *
22 * - Redistributions in binary form must reproduce the above
23 * copyright notice, this list of conditions and the following
24 * disclaimer in the documentation and/or other materials
25 * provided with the distribution.
26 *
27 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
28 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
29 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
30 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
31 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
32 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
33 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
34 * SOFTWARE.
35 *
36 * $Id: ib_mad.h 2775 2005-07-02 13:42:12Z halr $
37 */
38
39#if !defined( IB_MAD_H )
40#define IB_MAD_H
41
42#include <linux/pci.h>
43
44#include <ib_verbs.h>
45
46/* Management base version */
47#define IB_MGMT_BASE_VERSION 1
48
49/* Management classes */
50#define IB_MGMT_CLASS_SUBN_LID_ROUTED 0x01
51#define IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE 0x81
52#define IB_MGMT_CLASS_SUBN_ADM 0x03
53#define IB_MGMT_CLASS_PERF_MGMT 0x04
54#define IB_MGMT_CLASS_BM 0x05
55#define IB_MGMT_CLASS_DEVICE_MGMT 0x06
56#define IB_MGMT_CLASS_CM 0x07
57#define IB_MGMT_CLASS_SNMP 0x08
58#define IB_MGMT_CLASS_VENDOR_RANGE2_START 0x30
59#define IB_MGMT_CLASS_VENDOR_RANGE2_END 0x4F
60
61#define IB_OPENIB_OUI (0x001405)
62
63/* Management methods */
64#define IB_MGMT_METHOD_GET 0x01
65#define IB_MGMT_METHOD_SET 0x02
66#define IB_MGMT_METHOD_GET_RESP 0x81
67#define IB_MGMT_METHOD_SEND 0x03
68#define IB_MGMT_METHOD_TRAP 0x05
69#define IB_MGMT_METHOD_REPORT 0x06
70#define IB_MGMT_METHOD_REPORT_RESP 0x86
71#define IB_MGMT_METHOD_TRAP_REPRESS 0x07
72
73#define IB_MGMT_METHOD_RESP 0x80
74
75#define IB_MGMT_MAX_METHODS 128
76
77/* RMPP information */
78#define IB_MGMT_RMPP_VERSION 1
79
80#define IB_MGMT_RMPP_TYPE_DATA 1
81#define IB_MGMT_RMPP_TYPE_ACK 2
82#define IB_MGMT_RMPP_TYPE_STOP 3
83#define IB_MGMT_RMPP_TYPE_ABORT 4
84
85#define IB_MGMT_RMPP_FLAG_ACTIVE 1
86#define IB_MGMT_RMPP_FLAG_FIRST (1<<1)
87#define IB_MGMT_RMPP_FLAG_LAST (1<<2)
88
89#define IB_MGMT_RMPP_NO_RESPTIME 0x1F
90
91#define IB_MGMT_RMPP_STATUS_SUCCESS 0
92#define IB_MGMT_RMPP_STATUS_RESX 1
93#define IB_MGMT_RMPP_STATUS_ABORT_MIN 118
94#define IB_MGMT_RMPP_STATUS_T2L 118
95#define IB_MGMT_RMPP_STATUS_BAD_LEN 119
96#define IB_MGMT_RMPP_STATUS_BAD_SEG 120
97#define IB_MGMT_RMPP_STATUS_BADT 121
98#define IB_MGMT_RMPP_STATUS_W2S 122
99#define IB_MGMT_RMPP_STATUS_S2B 123
100#define IB_MGMT_RMPP_STATUS_BAD_STATUS 124
101#define IB_MGMT_RMPP_STATUS_UNV 125
102#define IB_MGMT_RMPP_STATUS_TMR 126
103#define IB_MGMT_RMPP_STATUS_UNSPEC 127
104#define IB_MGMT_RMPP_STATUS_ABORT_MAX 127
105
106#define IB_QP0 0
107#define IB_QP1 __constant_htonl(1)
108#define IB_QP1_QKEY 0x80010000
109#define IB_QP_SET_QKEY 0x80000000
110
111struct ib_mad_hdr {
112 u8 base_version;
113 u8 mgmt_class;
114 u8 class_version;
115 u8 method;
116 __be16 status;
117 __be16 class_specific;
118 __be64 tid;
119 __be16 attr_id;
120 __be16 resv;
121 __be32 attr_mod;
122};
123
124struct ib_rmpp_hdr {
125 u8 rmpp_version;
126 u8 rmpp_type;
127 u8 rmpp_rtime_flags;
128 u8 rmpp_status;
129 __be32 seg_num;
130 __be32 paylen_newwin;
131};
132
133typedef u64 __bitwise ib_sa_comp_mask;
134
135#define IB_SA_COMP_MASK(n) ((__force ib_sa_comp_mask) cpu_to_be64(1ull << n))
136
137/*
138 * ib_sa_hdr and ib_sa_mad structures must be packed because they have
139 * 64-bit fields that are only 32-bit aligned. 64-bit architectures will
140 * lay them out wrong otherwise. (And unfortunately they are sent on
141 * the wire so we can't change the layout)
142 */
143struct ib_sa_hdr {
144 __be64 sm_key;
145 __be16 attr_offset;
146 __be16 reserved;
147 ib_sa_comp_mask comp_mask;
148} __attribute__ ((packed));
149
150struct ib_mad {
151 struct ib_mad_hdr mad_hdr;
152 u8 data[232];
153};
154
155struct ib_rmpp_mad {
156 struct ib_mad_hdr mad_hdr;
157 struct ib_rmpp_hdr rmpp_hdr;
158 u8 data[220];
159};
160
161struct ib_sa_mad {
162 struct ib_mad_hdr mad_hdr;
163 struct ib_rmpp_hdr rmpp_hdr;
164 struct ib_sa_hdr sa_hdr;
165 u8 data[200];
166} __attribute__ ((packed));
167
168struct ib_vendor_mad {
169 struct ib_mad_hdr mad_hdr;
170 struct ib_rmpp_hdr rmpp_hdr;
171 u8 reserved;
172 u8 oui[3];
173 u8 data[216];
174};
175
176/**
177 * ib_mad_send_buf - MAD data buffer and work request for sends.
178 * @mad: References an allocated MAD data buffer. The size of the data
179 * buffer is specified in the @send_wr.length field.
180 * @mapping: DMA mapping information.
181 * @mad_agent: MAD agent that allocated the buffer.
182 * @context: User-controlled context fields.
183 * @send_wr: An initialized work request structure used when sending the MAD.
184 * The wr_id field of the work request is initialized to reference this
185 * data structure.
186 * @sge: A scatter-gather list referenced by the work request.
187 *
188 * Users are responsible for initializing the MAD buffer itself, with the
189 * exception of specifying the payload length field in any RMPP MAD.
190 */
191struct ib_mad_send_buf {
192 struct ib_mad *mad;
193 DECLARE_PCI_UNMAP_ADDR(mapping)
194 struct ib_mad_agent *mad_agent;
195 void *context[2];
196 struct ib_send_wr send_wr;
197 struct ib_sge sge;
198};
199
200/**
201 * ib_get_rmpp_resptime - Returns the RMPP response time.
202 * @rmpp_hdr: An RMPP header.
203 */
204static inline u8 ib_get_rmpp_resptime(struct ib_rmpp_hdr *rmpp_hdr)
205{
206 return rmpp_hdr->rmpp_rtime_flags >> 3;
207}
208
209/**
210 * ib_get_rmpp_flags - Returns the RMPP flags.
211 * @rmpp_hdr: An RMPP header.
212 */
213static inline u8 ib_get_rmpp_flags(struct ib_rmpp_hdr *rmpp_hdr)
214{
215 return rmpp_hdr->rmpp_rtime_flags & 0x7;
216}
217
218/**
219 * ib_set_rmpp_resptime - Sets the response time in an RMPP header.
220 * @rmpp_hdr: An RMPP header.
221 * @rtime: The response time to set.
222 */
223static inline void ib_set_rmpp_resptime(struct ib_rmpp_hdr *rmpp_hdr, u8 rtime)
224{
225 rmpp_hdr->rmpp_rtime_flags = ib_get_rmpp_flags(rmpp_hdr) | (rtime << 3);
226}
227
228/**
229 * ib_set_rmpp_flags - Sets the flags in an RMPP header.
230 * @rmpp_hdr: An RMPP header.
231 * @flags: The flags to set.
232 */
233static inline void ib_set_rmpp_flags(struct ib_rmpp_hdr *rmpp_hdr, u8 flags)
234{
235 rmpp_hdr->rmpp_rtime_flags = (rmpp_hdr->rmpp_rtime_flags & 0xF1) |
236 (flags & 0x7);
237}
238
239struct ib_mad_agent;
240struct ib_mad_send_wc;
241struct ib_mad_recv_wc;
242
243/**
244 * ib_mad_send_handler - callback handler for a sent MAD.
245 * @mad_agent: MAD agent that sent the MAD.
246 * @mad_send_wc: Send work completion information on the sent MAD.
247 */
248typedef void (*ib_mad_send_handler)(struct ib_mad_agent *mad_agent,
249 struct ib_mad_send_wc *mad_send_wc);
250
251/**
252 * ib_mad_snoop_handler - Callback handler for snooping sent MADs.
253 * @mad_agent: MAD agent that snooped the MAD.
254 * @send_wr: Work request information on the sent MAD.
255 * @mad_send_wc: Work completion information on the sent MAD. Valid
256 * only for snooping that occurs on a send completion.
257 *
258 * Clients snooping MADs should not modify data referenced by the @send_wr
259 * or @mad_send_wc.
260 */
261typedef void (*ib_mad_snoop_handler)(struct ib_mad_agent *mad_agent,
262 struct ib_send_wr *send_wr,
263 struct ib_mad_send_wc *mad_send_wc);
264
265/**
266 * ib_mad_recv_handler - callback handler for a received MAD.
267 * @mad_agent: MAD agent requesting the received MAD.
268 * @mad_recv_wc: Received work completion information on the received MAD.
269 *
270 * MADs received in response to a send request operation will be handed to
271 * the user after the send operation completes. All data buffers given
272 * to registered agents through this routine are owned by the receiving
273 * client, except for snooping agents. Clients snooping MADs should not
274 * modify the data referenced by @mad_recv_wc.
275 */
276typedef void (*ib_mad_recv_handler)(struct ib_mad_agent *mad_agent,
277 struct ib_mad_recv_wc *mad_recv_wc);
278
279/**
280 * ib_mad_agent - Used to track MAD registration with the access layer.
281 * @device: Reference to device registration is on.
282 * @qp: Reference to QP used for sending and receiving MADs.
283 * @mr: Memory region for system memory usable for DMA.
284 * @recv_handler: Callback handler for a received MAD.
285 * @send_handler: Callback handler for a sent MAD.
286 * @snoop_handler: Callback handler for snooped sent MADs.
287 * @context: User-specified context associated with this registration.
288 * @hi_tid: Access layer assigned transaction ID for this client.
289 * Unsolicited MADs sent by this client will have the upper 32-bits
290 * of their TID set to this value.
291 * @port_num: Port number on which QP is registered
292 * @rmpp_version: If set, indicates the RMPP version used by this agent.
293 */
294struct ib_mad_agent {
295 struct ib_device *device;
296 struct ib_qp *qp;
297 struct ib_mr *mr;
298 ib_mad_recv_handler recv_handler;
299 ib_mad_send_handler send_handler;
300 ib_mad_snoop_handler snoop_handler;
301 void *context;
302 u32 hi_tid;
303 u8 port_num;
304 u8 rmpp_version;
305};
306
307/**
308 * ib_mad_send_wc - MAD send completion information.
309 * @wr_id: Work request identifier associated with the send MAD request.
310 * @status: Completion status.
311 * @vendor_err: Optional vendor error information returned with a failed
312 * request.
313 */
314struct ib_mad_send_wc {
315 u64 wr_id;
316 enum ib_wc_status status;
317 u32 vendor_err;
318};
319
320/**
321 * ib_mad_recv_buf - received MAD buffer information.
322 * @list: Reference to next data buffer for a received RMPP MAD.
323 * @grh: References a data buffer containing the global route header.
324 * The data refereced by this buffer is only valid if the GRH is
325 * valid.
326 * @mad: References the start of the received MAD.
327 */
328struct ib_mad_recv_buf {
329 struct list_head list;
330 struct ib_grh *grh;
331 struct ib_mad *mad;
332};
333
334/**
335 * ib_mad_recv_wc - received MAD information.
336 * @wc: Completion information for the received data.
337 * @recv_buf: Specifies the location of the received data buffer(s).
338 * @rmpp_list: Specifies a list of RMPP reassembled received MAD buffers.
339 * @mad_len: The length of the received MAD, without duplicated headers.
340 *
341 * For received response, the wr_id field of the wc is set to the wr_id
342 * for the corresponding send request.
343 */
344struct ib_mad_recv_wc {
345 struct ib_wc *wc;
346 struct ib_mad_recv_buf recv_buf;
347 struct list_head rmpp_list;
348 int mad_len;
349};
350
351/**
352 * ib_mad_reg_req - MAD registration request
353 * @mgmt_class: Indicates which management class of MADs should be receive
354 * by the caller. This field is only required if the user wishes to
355 * receive unsolicited MADs, otherwise it should be 0.
356 * @mgmt_class_version: Indicates which version of MADs for the given
357 * management class to receive.
358 * @oui: Indicates IEEE OUI when mgmt_class is a vendor class
359 * in the range from 0x30 to 0x4f. Otherwise not used.
360 * @method_mask: The caller will receive unsolicited MADs for any method
361 * where @method_mask = 1.
362 */
363struct ib_mad_reg_req {
364 u8 mgmt_class;
365 u8 mgmt_class_version;
366 u8 oui[3];
367 DECLARE_BITMAP(method_mask, IB_MGMT_MAX_METHODS);
368};
369
370/**
371 * ib_register_mad_agent - Register to send/receive MADs.
372 * @device: The device to register with.
373 * @port_num: The port on the specified device to use.
374 * @qp_type: Specifies which QP to access. Must be either
375 * IB_QPT_SMI or IB_QPT_GSI.
376 * @mad_reg_req: Specifies which unsolicited MADs should be received
377 * by the caller. This parameter may be NULL if the caller only
378 * wishes to receive solicited responses.
379 * @rmpp_version: If set, indicates that the client will send
380 * and receive MADs that contain the RMPP header for the given version.
381 * If set to 0, indicates that RMPP is not used by this client.
382 * @send_handler: The completion callback routine invoked after a send
383 * request has completed.
384 * @recv_handler: The completion callback routine invoked for a received
385 * MAD.
386 * @context: User specified context associated with the registration.
387 */
388struct ib_mad_agent *ib_register_mad_agent(struct ib_device *device,
389 u8 port_num,
390 enum ib_qp_type qp_type,
391 struct ib_mad_reg_req *mad_reg_req,
392 u8 rmpp_version,
393 ib_mad_send_handler send_handler,
394 ib_mad_recv_handler recv_handler,
395 void *context);
396
397enum ib_mad_snoop_flags {
398 /*IB_MAD_SNOOP_POSTED_SENDS = 1,*/
399 /*IB_MAD_SNOOP_RMPP_SENDS = (1<<1),*/
400 IB_MAD_SNOOP_SEND_COMPLETIONS = (1<<2),
401 /*IB_MAD_SNOOP_RMPP_SEND_COMPLETIONS = (1<<3),*/
402 IB_MAD_SNOOP_RECVS = (1<<4)
403 /*IB_MAD_SNOOP_RMPP_RECVS = (1<<5),*/
404 /*IB_MAD_SNOOP_REDIRECTED_QPS = (1<<6)*/
405};
406
407/**
408 * ib_register_mad_snoop - Register to snoop sent and received MADs.
409 * @device: The device to register with.
410 * @port_num: The port on the specified device to use.
411 * @qp_type: Specifies which QP traffic to snoop. Must be either
412 * IB_QPT_SMI or IB_QPT_GSI.
413 * @mad_snoop_flags: Specifies information where snooping occurs.
414 * @send_handler: The callback routine invoked for a snooped send.
415 * @recv_handler: The callback routine invoked for a snooped receive.
416 * @context: User specified context associated with the registration.
417 */
418struct ib_mad_agent *ib_register_mad_snoop(struct ib_device *device,
419 u8 port_num,
420 enum ib_qp_type qp_type,
421 int mad_snoop_flags,
422 ib_mad_snoop_handler snoop_handler,
423 ib_mad_recv_handler recv_handler,
424 void *context);
425
426/**
427 * ib_unregister_mad_agent - Unregisters a client from using MAD services.
428 * @mad_agent: Corresponding MAD registration request to deregister.
429 *
430 * After invoking this routine, MAD services are no longer usable by the
431 * client on the associated QP.
432 */
433int ib_unregister_mad_agent(struct ib_mad_agent *mad_agent);
434
435/**
436 * ib_post_send_mad - Posts MAD(s) to the send queue of the QP associated
437 * with the registered client.
438 * @mad_agent: Specifies the associated registration to post the send to.
439 * @send_wr: Specifies the information needed to send the MAD(s).
440 * @bad_send_wr: Specifies the MAD on which an error was encountered.
441 *
442 * Sent MADs are not guaranteed to complete in the order that they were posted.
443 *
444 * If the MAD requires RMPP, the data buffer should contain a single copy
445 * of the common MAD, RMPP, and class specific headers, followed by the class
446 * defined data. If the class defined data would not divide evenly into
447 * RMPP segments, then space must be allocated at the end of the referenced
448 * buffer for any required padding. To indicate the amount of class defined
449 * data being transferred, the paylen_newwin field in the RMPP header should
450 * be set to the size of the class specific header plus the amount of class
451 * defined data being transferred. The paylen_newwin field should be
452 * specified in network-byte order.
453 */
454int ib_post_send_mad(struct ib_mad_agent *mad_agent,
455 struct ib_send_wr *send_wr,
456 struct ib_send_wr **bad_send_wr);
457
458/**
459 * ib_coalesce_recv_mad - Coalesces received MAD data into a single buffer.
460 * @mad_recv_wc: Work completion information for a received MAD.
461 * @buf: User-provided data buffer to receive the coalesced buffers. The
462 * referenced buffer should be at least the size of the mad_len specified
463 * by @mad_recv_wc.
464 *
465 * This call copies a chain of received MAD segments into a single data buffer,
466 * removing duplicated headers.
467 */
468void ib_coalesce_recv_mad(struct ib_mad_recv_wc *mad_recv_wc, void *buf);
469
470/**
471 * ib_free_recv_mad - Returns data buffers used to receive a MAD.
472 * @mad_recv_wc: Work completion information for a received MAD.
473 *
474 * Clients receiving MADs through their ib_mad_recv_handler must call this
475 * routine to return the work completion buffers to the access layer.
476 */
477void ib_free_recv_mad(struct ib_mad_recv_wc *mad_recv_wc);
478
479/**
480 * ib_cancel_mad - Cancels an outstanding send MAD operation.
481 * @mad_agent: Specifies the registration associated with sent MAD.
482 * @wr_id: Indicates the work request identifier of the MAD to cancel.
483 *
484 * MADs will be returned to the user through the corresponding
485 * ib_mad_send_handler.
486 */
487void ib_cancel_mad(struct ib_mad_agent *mad_agent, u64 wr_id);
488
489/**
490 * ib_modify_mad - Modifies an outstanding send MAD operation.
491 * @mad_agent: Specifies the registration associated with sent MAD.
492 * @wr_id: Indicates the work request identifier of the MAD to modify.
493 * @timeout_ms: New timeout value for sent MAD.
494 *
495 * This call will reset the timeout value for a sent MAD to the specified
496 * value.
497 */
498int ib_modify_mad(struct ib_mad_agent *mad_agent, u64 wr_id, u32 timeout_ms);
499
500/**
501 * ib_redirect_mad_qp - Registers a QP for MAD services.
502 * @qp: Reference to a QP that requires MAD services.
503 * @rmpp_version: If set, indicates that the client will send
504 * and receive MADs that contain the RMPP header for the given version.
505 * If set to 0, indicates that RMPP is not used by this client.
506 * @send_handler: The completion callback routine invoked after a send
507 * request has completed.
508 * @recv_handler: The completion callback routine invoked for a received
509 * MAD.
510 * @context: User specified context associated with the registration.
511 *
512 * Use of this call allows clients to use MAD services, such as RMPP,
513 * on user-owned QPs. After calling this routine, users may send
514 * MADs on the specified QP by calling ib_mad_post_send.
515 */
516struct ib_mad_agent *ib_redirect_mad_qp(struct ib_qp *qp,
517 u8 rmpp_version,
518 ib_mad_send_handler send_handler,
519 ib_mad_recv_handler recv_handler,
520 void *context);
521
522/**
523 * ib_process_mad_wc - Processes a work completion associated with a
524 * MAD sent or received on a redirected QP.
525 * @mad_agent: Specifies the registered MAD service using the redirected QP.
526 * @wc: References a work completion associated with a sent or received
527 * MAD segment.
528 *
529 * This routine is used to complete or continue processing on a MAD request.
530 * If the work completion is associated with a send operation, calling
531 * this routine is required to continue an RMPP transfer or to wait for a
532 * corresponding response, if it is a request. If the work completion is
533 * associated with a receive operation, calling this routine is required to
534 * process an inbound or outbound RMPP transfer, or to match a response MAD
535 * with its corresponding request.
536 */
537int ib_process_mad_wc(struct ib_mad_agent *mad_agent,
538 struct ib_wc *wc);
539
540/**
541 * ib_create_send_mad - Allocate and initialize a data buffer and work request
542 * for sending a MAD.
543 * @mad_agent: Specifies the registered MAD service to associate with the MAD.
544 * @remote_qpn: Specifies the QPN of the receiving node.
545 * @pkey_index: Specifies which PKey the MAD will be sent using. This field
546 * is valid only if the remote_qpn is QP 1.
547 * @ah: References the address handle used to transfer to the remote node.
548 * @rmpp_active: Indicates if the send will enable RMPP.
549 * @hdr_len: Indicates the size of the data header of the MAD. This length
550 * should include the common MAD header, RMPP header, plus any class
551 * specific header.
552 * @data_len: Indicates the size of any user-transferred data. The call will
553 * automatically adjust the allocated buffer size to account for any
554 * additional padding that may be necessary.
555 * @gfp_mask: GFP mask used for the memory allocation.
556 *
557 * This is a helper routine that may be used to allocate a MAD. Users are
558 * not required to allocate outbound MADs using this call. The returned
559 * MAD send buffer will reference a data buffer usable for sending a MAD, along
560 * with an initialized work request structure. Users may modify the returned
561 * MAD data buffer or work request before posting the send.
562 *
563 * The returned data buffer will be cleared. Users are responsible for
564 * initializing the common MAD and any class specific headers. If @rmpp_active
565 * is set, the RMPP header will be initialized for sending.
566 */
567struct ib_mad_send_buf * ib_create_send_mad(struct ib_mad_agent *mad_agent,
568 u32 remote_qpn, u16 pkey_index,
569 struct ib_ah *ah, int rmpp_active,
570 int hdr_len, int data_len,
571 unsigned int __nocast gfp_mask);
572
573/**
574 * ib_free_send_mad - Returns data buffers used to send a MAD.
575 * @send_buf: Previously allocated send data buffer.
576 */
577void ib_free_send_mad(struct ib_mad_send_buf *send_buf);
578
579#endif /* IB_MAD_H */
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-19 00:58:21 -0500