xref: /illumos-gate/usr/src/uts/common/sys/ib/mgt/ibdm/ibdm_impl.h (revision d4660949aa62dd6a963f4913b7120b383cf473c4)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #ifndef _SYS_IB_MGT_IBDM_IBDM_IMPL_H
27 #define	_SYS_IB_MGT_IBDM_IBDM_IMPL_H
28 
29 #pragma ident	"%Z%%M%	%I%	%E% SMI"
30 
31 /*
32  * ibdm_impl.h
33  *
34  *	This file contains definitions of the data structures, macros etc
35  *	related to the IBDM module.
36  */
37 
38 #include <sys/ib/mgt/ibdm/ibdm_ibnex.h>
39 #include <sys/ib/ibtl/impl/ibtl_util.h>
40 
41 #ifdef __cplusplus
42 extern "C" {
43 #endif
44 
45 /* values for "cb_req_type" */
46 #define	IBDM_REQ_TYPE_INVALID		0x0
47 #define	IBDM_REQ_TYPE_CLASSPORTINFO	0x1
48 #define	IBDM_REQ_TYPE_IOUINFO		0x2
49 #define	IBDM_REQ_TYPE_IOCINFO		0x4
50 #define	IBDM_REQ_TYPE_SRVENTS		0x8
51 #define	IBDM_REQ_TYPE_IOU_DIAGCODE	0x10
52 #define	IBDM_REQ_TYPE_IOC_DIAGCODE	0x20
53 
54 typedef struct ibdm_taskq_args_s {
55 	ibmf_handle_t		tq_ibmf_handle;
56 	ibmf_msg_t		*tq_ibmf_msg;
57 	void			*tq_args;
58 } ibdm_taskq_args_t;
59 _NOTE(SCHEME_PROTECTS_DATA("unique per call", ibdm_taskq_args_t))
60 _NOTE(SCHEME_PROTECTS_DATA("unique per call", ib_mad_hdr_t))
61 _NOTE(SCHEME_PROTECTS_DATA("unique per call", ibmf_msg_t))
62 
63 #define	IBDM_GID_PRESENT		0x1
64 #define	IBDM_GID_NOT_PRESENT		0x0
65 
66 #define	IBDM_IBMF_PKT_DUP_RESP		0x1
67 #define	IBDM_IBMF_PKT_REUSED		0x2
68 #define	IBDM_IBMF_PKT_UNEXP_RESP	0x4
69 
70 #define	IBDM_MAX_SERV_ENTRIES_PER_REQ	4
71 
72 typedef struct ibdm_gid_s {
73 	uint64_t		gid_dgid_hi;
74 	uint64_t		gid_dgid_lo;
75 	struct ibdm_gid_s	*gid_next;
76 } ibdm_gid_t;
77 
78 #define	IBDM_GID_PROBE_NOT_DONE		0x00
79 #define	IBDM_GET_CLASSPORTINFO		0x01
80 #define	IBDM_GET_IOUNITINFO		0x02
81 #define	IBDM_GET_IOC_DETAILS		0x04
82 #define	IBDM_GID_PROBING_COMPLETE	0x08
83 #define	IBDM_GID_PROBING_SKIPPED	0x10
84 #define	IBDM_GID_PROBING_FAILED		0x20
85 #define	IBDM_SET_CLASSPORTINFO		0x40
86 
87 /*
88  * Identifiers to distinguish a Cisco FC GW from others.
89  * Used to filter a setclassportinfo request.
90  */
91 #define	IBDM_CISCO_COMPANY_ID		(0x5ad)
92 #define	IBDM_CISCO_DEVICE_ID		(0xa87c)
93 
94 /*
95  * the bit-shift value for OUI in GUID
96  * A 64 bit globally unique identifier (GUID) composed of a 24 bit company id
97  * and an 48 bit extension identifier, and this value is used to extract
98  * the company id from the GUID.
99  */
100 #define	IBDM_OUI_GUID_SHIFT		(40)
101 
102 /*
103  * The state diagram for the gl_state
104  *
105  *                          (in case of Cisco FC GW)
106  * IBDM_GID_PROBE_NOT_DONE  ---------- 40 -> IBDM_SET_CLASSPORTINFO
107  *                          ----.	        |
108  *    |      |			| (others)      |
109  *    |      |			1		|
110  *    |      |			|               1
111  *    |      |			`-------------.	|
112  *    |      |                                v v
113  *    |	     |				     IBDM_GET_CLASSPORTINFO
114  *    |      |
115  *    |      |                                  |
116  *    |      2                                  3
117  *    |      |                                  |
118  *    |      v                                  v
119  *    |     IBDM_GID_PROBING_FAILED          IBDM_GET_IOUNITINFO
120  *    |                                         |
121  *    6                                         4
122  *    |                                         |
123  *    v                                         v
124  *  IBDM_GID_PROBING_SKIPPLED                IBDM_GET_IOC_DETAILS
125  *                                              |
126  *                                              5
127  *                                              |
128  *                                              v
129  *                                           IBDM_GID_PROBE_COMPLETE
130  *
131  * Initial state : IBDM_GID_PROBE_NOT_DONE
132  *     40 = Port sends setClassPortInfo to activate Cisco FC GW
133  *	1 = Port supports DM MAD's and a request to ClassportInfo is sent
134  *	3 = Received ClassPortInfo and sent IOUnitInfo
135  *	4 = Recevied IOUunitInfo and sent IOC profile, diagcodes, and
136  *		service entries requests
137  *	5 = Received all the IOC information
138  *	2 = Failed to probe the GID
139  *		Port does not support DM MAD's
140  *		Port did not respond property
141  *	6 = A different GID for the same port, skip the probe
142  *
143  * Reprobe state transition :
144  *
145  * IBDM_GID_PROBE_COMPLETE
146  *	|
147  *	7
148  *	|
149  *	v
150  * IBDM_GET_IOC_DETAILS
151  *	|
152  *	8
153  *	|
154  *	v
155  * IBDM_GID_PROBE_COMPLETE
156  *
157  *	7 = Reprobe request for one or more IOCs initiated.
158  *	8 = Reprobe done(IOC COntroller Profile & Service entries)
159  */
160 
161 typedef struct ibdm_dp_gidinfo_s {
162 	kmutex_t		gl_mutex;
163 	uint_t			gl_state;
164 	int			gl_reprobe_flag;	/* pass this to taskq */
165 	struct ibdm_dp_gidinfo_s *gl_next;
166 	struct ibdm_dp_gidinfo_s *gl_prev;
167 	ibdm_iou_info_t		*gl_iou;
168 	int			gl_pending_cmds;
169 	ibmf_qp_handle_t	gl_qp_hdl;
170 	uint64_t		gl_transactionID;
171 	ibdm_timeout_cb_args_t	gl_iou_cb_args;
172 	ib_lid_t		gl_dlid;
173 	ib_lid_t		gl_slid;
174 	uint64_t		gl_dgid_hi;
175 	uint64_t		gl_dgid_lo;
176 	uint64_t		gl_sgid_hi;
177 	uint64_t		gl_sgid_lo;
178 	ib_guid_t		gl_nodeguid;
179 	ib_guid_t		gl_portguid;
180 	ib_pkey_t		gl_p_key;
181 	boolean_t		gl_redirected;
182 	uint32_t		gl_redirect_dlid;
183 	uint32_t		gl_redirect_QP;
184 	ib_pkey_t		gl_redirect_pkey;
185 	ib_qkey_t		gl_redirect_qkey;
186 	uint64_t		gl_redirectGID_hi;
187 	uint64_t		gl_redirectGID_lo;
188 	ibmf_handle_t		gl_ibmf_hdl;
189 	ibmf_saa_handle_t	gl_sa_hdl;
190 	timeout_id_t		gl_timeout_id;
191 	ibdm_timeout_cb_args_t	gl_cpi_cb_args;
192 	uint32_t		gl_ngids;
193 	ibdm_gid_t		*gl_gid;
194 	uint32_t		gl_resp_timeout;
195 	int			gl_num_iocs;
196 	ibdm_hca_list_t		*gl_hca_list;
197 	int			gl_disconnected;
198 	uint64_t		gl_min_transactionID;
199 	uint64_t		gl_max_transactionID;
200 	ibdm_iou_info_t		*gl_prev_iou;
201 	uint16_t		gl_devid;	/* device ID info */
202 	kcondvar_t		gl_probe_cv;	/* sync for Cisco FC GW */
203 	uint32_t		gl_flag;
204 } ibdm_dp_gidinfo_t;
205 _NOTE(MUTEX_PROTECTS_DATA(ibdm_dp_gidinfo_s::gl_mutex,
206 	ibdm_dp_gidinfo_s::{gl_state gl_timeout_id gl_pending_cmds}))
207 _NOTE(SCHEME_PROTECTS_DATA("Serialized access by cv", ibdm_dp_gidinfo_s))
208 _NOTE(DATA_READABLE_WITHOUT_LOCK(ibdm_dp_gidinfo_s::{gl_ibmf_hdl gl_sa_hdl}))
209 
210 /*
211  * The transaction ID for the GID contains of two parts :
212  *	1. Upper 32 bits which is unique for each GID.
213  *	2. Lower 32 bits which is unique for each MAD.
214  * The assumptions are :
215  *	1. At most 2 power 32 DM capable GIDs on the IB fabric
216  *	2. IBDM sends maximum of 2 power 32 MADs to the same DM GID
217  * The limits are sufficient for practical configurations.
218  */
219 #define	IBDM_GID_TRANSACTIONID_SHIFT	((ulong_t)32)
220 #define	IBDM_GID_TRANSACTIONID_MASK	0xFFFFFFFF00000000ULL
221 
222 typedef struct ibdm_s {
223 	/* Protects IBDM's critical data */
224 	kmutex_t		ibdm_mutex;
225 	uint32_t		ibdm_hca_count;
226 	kmutex_t		ibdm_hl_mutex;
227 	kmutex_t		ibdm_ibnex_mutex;
228 	ibdm_hca_list_t		*ibdm_hca_list_head;
229 	ibdm_hca_list_t		*ibdm_hca_list_tail;
230 
231 	ibdm_dp_gidinfo_t	*ibdm_dp_gidlist_head;
232 	ibdm_dp_gidinfo_t	*ibdm_dp_gidlist_tail;
233 
234 	kcondvar_t		ibdm_probe_cv;
235 	kcondvar_t		ibdm_busy_cv;
236 	uint32_t		ibdm_ngid_probes_in_progress;
237 	uint64_t		ibdm_transactionID;
238 	uint32_t		ibdm_ngids;
239 	uint32_t		ibdm_busy;
240 	int			ibdm_state;
241 	ibt_clnt_hdl_t		ibdm_ibt_clnt_hdl;
242 
243 	/*
244 	 * These are callback routines registered by the IB nexus driver.
245 	 * These callbacks are used to inform the IB nexus driver about
246 	 * the arrival/removal of HCA and IOC's
247 	 */
248 	ibdm_callback_t		ibdm_ibnex_callback;
249 
250 	/* Flag indicating - prev_iou during sweep */
251 	int			ibdm_prev_iou;
252 } ibdm_t;
253 _NOTE(MUTEX_PROTECTS_DATA(ibdm_s::ibdm_mutex, ibdm_s::{ibdm_ibt_clnt_hdl
254 	ibdm_busy ibdm_state}))
255 _NOTE(DATA_READABLE_WITHOUT_LOCK(ibdm_s::ibdm_ibt_clnt_hdl))
256 _NOTE(MUTEX_PROTECTS_DATA(ibdm_s::ibdm_hl_mutex,
257 	ibdm_s::{ibdm_hca_list_head ibdm_hca_list_tail}))
258 _NOTE(MUTEX_PROTECTS_DATA(ibdm_s::ibdm_ibnex_mutex,
259 	ibdm_s::ibdm_ibnex_callback))
260 _NOTE(SCHEME_PROTECTS_DATA("Serialized access by cv", ibdm_s))
261 _NOTE(LOCK_ORDER(ibdm_s::ibdm_mutex ibdm_dp_gidinfo_s::gl_mutex))
262 
263 /* valid values for ibdm_state */
264 #define	IBDM_LOCKS_ALLOCED	0x01		/* global locks alloced */
265 #define	IBDM_CVS_ALLOCED	0x02		/* global "cv"s alloced */
266 #define	IBDM_IBT_ATTACHED	0x04		/* ibt_attach() called */
267 #define	IBDM_HCA_ATTACHED	0x08		/* ibdm_handle_hca() called */
268 
269 #define	IBDM_8_BIT_MASK		0x00FF
270 #define	IBDM_16_BIT_MASK	0xFFFF
271 #define	IBDM_RETRY_COUNT	0x2
272 
273 #define	IBDM_BUSY		0x1
274 #define	IBDM_PROBE_IN_PROGRESS	0x2
275 #define	IBDM_CISCO_PROBE	0x4
276 #define	IBDM_CISCO_PROBE_DONE	0x8
277 
278 /*
279  * Device Management MAD packet format
280  * +--------+------------+------------+------------+------------+
281  * | offset |   byte 0   |   byte 1   |   byte 2   |   byte 3   |
282  * +--------+------------+------------+------------+------------+ --
283  * |   0    |                                                   |  ^
284  * +--------+                                                   | sizeof(
285  * |   ...  |              Common MAD Header                    | ib_mad_hdr_t)
286  * +--------+                                                   |  | (A)
287  * |   20   |                                                   |  v
288  * +--------+------------+------------+------------+------------+ --
289  * |   24   |                                                   |  ^
290  * +--------+                                                   |  |
291  * |   ...  |              RMPP Header                          |  |
292  * +--------+                                                   |  |
293  * |   32   |                                                   |  |
294  * +--------+------------+------------+------------+------------+  |
295  * |   36   |                                                   |  |
296  * +--------+              Access_Key                           |
297  * |   40   |                                                   | IBDM_DM_MAD_
298  * +--------+------------+------------+------------+------------+ HDR_SZ
299  * |   44   |  KeyType   |              reserved                |    (B)
300  * +--------+------------+------------+------------+------------+  |
301  * |   48   |                                                   |  |
302  * +--------+                                                   |  |
303  * |   52   |              Reserved                             |  |
304  * +--------+                                                   |  |
305  * |   56   |                                                   |  |
306  * +--------+------------+------------+------------+------------+  |
307  * |   60   |       Change_ID         |     ComponentMask       |  v
308  * +--------+------------+------------+------------+------------+ --
309  * |   64   |                                                   |  ^
310  * +--------+                                                   | IBDM_MAD_SIZE
311  * |   ...  |              Device Management Data               | - (A) - (B)
312  * +--------+                                                   |  |
313  * |  252   |                                                   |  v
314  * +--------+------------+------------+------------+------------+ --
315  */
316 #define	IBDM_MAD_SIZE		256
317 #define	IBDM_DM_MAD_HDR_SZ	40
318 
319 #define	IBDM_DFT_TIMEOUT	4
320 #define	IBDM_DFT_NRETRIES	3
321 
322 #define	IBDM_ENABLE_TASKQ_HANDLING	1
323 #define	IBDM_DISABLE_TASKQ_HANLDING	0
324 
325 typedef struct ibdm_saa_event_arg_s {
326 	ibmf_saa_handle_t ibmf_saa_handle;
327 	ibmf_saa_subnet_event_t ibmf_saa_event;
328 	ibmf_saa_event_details_t event_details;
329 	void *callback_arg;
330 } ibdm_saa_event_arg_t;
331 
332 #define	IBDM_TIMEOUT_VALUE(t)	(drv_usectohz(t * 1000000))
333 
334 #define	IBDM_OUT_IBMFMSG_MADHDR(msg)\
335 		(msg->im_msgbufs_send.im_bufs_mad_hdr)
336 
337 #define	IBDM_IN_IBMFMSG_MADHDR(msg)\
338 		(msg->im_msgbufs_recv.im_bufs_mad_hdr)
339 
340 #define	IBDM_IN_IBMFMSG_STATUS(msg)\
341 		b2h16(msg->im_msgbufs_recv.im_bufs_mad_hdr->Status)
342 
343 #define	IBDM_IN_IBMFMSG_ATTR(msg)\
344 		b2h16(msg->im_msgbufs_recv.im_bufs_mad_hdr->AttributeID)
345 
346 #define	IBDM_IN_IBMFMSG_ATTRMOD(msg)\
347 		b2h32(msg->im_msgbufs_recv.im_bufs_mad_hdr->AttributeModifier)
348 
349 #define	IBDM_IN_IBMFMSG2IOU(msg)	(ib_dm_io_unitinfo_t *)\
350 		(msg->im_msgbufs_recv.im_bufs_cl_data)
351 
352 #define	IBDM_IN_IBMFMSG2IOC(msg)	(ib_dm_ioc_ctrl_profile_t *)\
353 		(msg->im_msgbufs_recv.im_bufs_cl_data)
354 
355 #define	IBDM_IN_IBMFMSG2SRVENT(msg)	(ib_dm_srv_t *)\
356 		(msg->im_msgbufs_recv.im_bufs_cl_data)
357 
358 #define	IBDM_IN_IBMFMSG2DIAGCODE(msg)	(uint32_t *)\
359 		(msg->im_msgbufs_recv.im_bufs_cl_data)
360 
361 #define	IBDM_GIDINFO2IOCINFO(gid_info, idx) \
362 		(ibdm_ioc_info_t *)&gid_info->gl_iou->iou_ioc_info[idx];
363 
364 #define	IBDM_IS_IOC_NUM_INVALID(ioc_no, gid_info)\
365 		((ioc_no < 1) || (ioc_no >\
366 			gid_info->gl_iou->iou_info.iou_num_ctrl_slots))
367 
368 #define	IBDM_INVALID_PKEY(pkey)	\
369 		(((pkey) == IB_PKEY_INVALID_FULL) || \
370 		((pkey) == IB_PKEY_INVALID_LIMITED))
371 
372 #ifdef DEBUG
373 
374 void	ibdm_dump_mad_hdr(ib_mad_hdr_t *);
375 void	ibdm_dump_ibmf_msg(ibmf_msg_t *, int);
376 void	ibdm_dump_path_info(sa_path_record_t *);
377 void	ibdm_dump_classportinfo(ib_mad_classportinfo_t *);
378 void	ibdm_dump_iounitinfo(ib_dm_io_unitinfo_t *);
379 void	ibdm_dump_ioc_profile(ib_dm_ioc_ctrl_profile_t *);
380 void	ibdm_dump_service_entries(ib_dm_srv_t *);
381 void	ibdm_dump_sweep_fabric_timestamp(int);
382 
383 #define	ibdm_dump_mad_hdr(a)		ibdm_dump_mad_hdr(a)
384 #define	ibdm_dump_ibmf_msg(a, b)	ibdm_dump_ibmf_msg(a, b)
385 #define	ibdm_dump_path_info(a)		ibdm_dump_path_info(a)
386 #define	ibdm_dump_classportinfo(a)	ibdm_dump_classportinfo(a)
387 #define	ibdm_dump_iounitinfo(a)		ibdm_dump_iounitinfo(a)
388 #define	ibdm_dump_ioc_profile(a)	ibdm_dump_ioc_profile(a)
389 #define	ibdm_dump_service_entries(a)	ibdm_dump_service_entries(a)
390 
391 #else
392 
393 #define	ibdm_dump_mad_hdr(a)
394 #define	ibdm_dump_ibmf_msg(a, b)
395 #define	ibdm_dump_path_info(a)
396 #define	ibdm_dump_classportinfo(a)
397 #define	ibdm_dump_iounitinfo(a)
398 #define	ibdm_dump_ioc_profile(a)
399 #define	ibdm_dump_service_entries(a)
400 #define	ibdm_dump_sweep_fabric_timestamp(a)
401 
402 #endif
403 
404 #ifdef __cplusplus
405 }
406 #endif
407 
408 #endif	/* _SYS_IB_MGT_IBDM_IBDM_IMPL_H */
409