Mercurial > illumos > illumos-gate
annotate usr/src/uts/common/io/scsi/adapters/scsi_vhci/scsi_vhci.c @ 7656:2621e50fdf4a
PSARC 2008/382 Fast Reboot
6714038 Fast Reboot support for x86 platforms
author | Sherry Moore <Sherry.Moore@Sun.COM> |
---|---|
date | Mon, 22 Sep 2008 16:30:26 -0700 |
parents | 82798d9a3db9 |
children | 2b50eb467f7f |
rev | line source |
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4851 | 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 /* | |
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22 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. |
4851 | 23 * Use is subject to license terms. |
24 */ | |
25 | |
26 /* | |
27 * Multiplexed I/O SCSI vHCI implementation | |
28 */ | |
29 | |
30 #include <sys/conf.h> | |
31 #include <sys/file.h> | |
32 #include <sys/ddi.h> | |
33 #include <sys/sunddi.h> | |
34 #include <sys/scsi/scsi.h> | |
35 #include <sys/scsi/impl/scsi_reset_notify.h> | |
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36 #include <sys/scsi/impl/services.h> |
4851 | 37 #include <sys/sunmdi.h> |
38 #include <sys/mdi_impldefs.h> | |
39 #include <sys/scsi/adapters/scsi_vhci.h> | |
40 #include <sys/disp.h> | |
41 #include <sys/byteorder.h> | |
42 | |
43 extern uintptr_t scsi_callback_id; | |
44 extern ddi_dma_attr_t scsi_alloc_attr; | |
45 | |
46 #ifdef DEBUG | |
47 int vhci_debug = VHCI_DEBUG_DEFAULT_VAL; | |
48 #endif | |
49 | |
50 /* retry for the vhci_do_prout command when a not ready is returned */ | |
51 int vhci_prout_not_ready_retry = 180; | |
52 | |
53 /* | |
54 * These values are defined to support the internal retry of | |
55 * SCSI packets for better sense code handling. | |
56 */ | |
57 #define VHCI_CMD_CMPLT 0 | |
58 #define VHCI_CMD_RETRY 1 | |
59 #define VHCI_CMD_ERROR -1 | |
60 | |
61 #define PROPFLAGS (DDI_PROP_DONTPASS | DDI_PROP_NOTPROM) | |
62 #define VHCI_SCSI_PERR 0x47 | |
63 #define VHCI_PGR_ILLEGALOP -2 | |
64 #define VHCI_NUM_UPDATE_TASKQ 8 | |
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65 /* changed to 132 to accomodate HDS */ |
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66 #define VHCI_STD_INQ_SIZE 132 |
4851 | 67 |
68 /* | |
69 * Version Macros | |
70 */ | |
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71 #define VHCI_NAME_VERSION "SCSI VHCI Driver" |
4851 | 72 char vhci_version_name[] = VHCI_NAME_VERSION; |
73 | |
74 int vhci_first_time = 0; | |
75 clock_t vhci_to_ticks = 0; | |
76 int vhci_init_wait_timeout = VHCI_INIT_WAIT_TIMEOUT; | |
77 kcondvar_t vhci_cv; | |
78 kmutex_t vhci_global_mutex; | |
79 void *vhci_softstate = NULL; /* for soft state */ | |
80 | |
81 /* | |
82 * Flag to delay the retry of the reserve command | |
83 */ | |
84 int vhci_reserve_delay = 100000; | |
85 static int vhci_path_quiesce_timeout = 60; | |
86 static uchar_t zero_key[MHIOC_RESV_KEY_SIZE]; | |
87 | |
88 /* uscsi delay for a TRAN_BUSY */ | |
89 static int vhci_uscsi_delay = 100000; | |
90 static int vhci_uscsi_retry_count = 180; | |
91 /* uscsi_restart_sense timeout id in case it needs to get canceled */ | |
92 static timeout_id_t vhci_restart_timeid = 0; | |
93 | |
94 /* | |
95 * Bidirectional map of 'target-port' to port id <pid> for support of | |
96 * iostat(1M) '-Xx' and '-Yx' output. | |
97 */ | |
98 static kmutex_t vhci_targetmap_mutex; | |
99 static uint_t vhci_targetmap_pid = 1; | |
100 static mod_hash_t *vhci_targetmap_bypid; /* <pid> -> 'target-port' */ | |
101 static mod_hash_t *vhci_targetmap_byport; /* 'target-port' -> <pid> */ | |
102 | |
103 /* | |
104 * functions exported by scsi_vhci struct cb_ops | |
105 */ | |
106 static int vhci_open(dev_t *, int, int, cred_t *); | |
107 static int vhci_close(dev_t, int, int, cred_t *); | |
108 static int vhci_ioctl(dev_t, int, intptr_t, int, cred_t *, int *); | |
109 | |
110 /* | |
111 * functions exported by scsi_vhci struct dev_ops | |
112 */ | |
113 static int vhci_getinfo(dev_info_t *, ddi_info_cmd_t, void *, void **); | |
114 static int vhci_attach(dev_info_t *, ddi_attach_cmd_t); | |
115 static int vhci_detach(dev_info_t *, ddi_detach_cmd_t); | |
116 | |
117 /* | |
118 * functions exported by scsi_vhci scsi_hba_tran_t transport table | |
119 */ | |
120 static int vhci_scsi_tgt_init(dev_info_t *, dev_info_t *, | |
121 scsi_hba_tran_t *, struct scsi_device *); | |
122 static void vhci_scsi_tgt_free(dev_info_t *, dev_info_t *, scsi_hba_tran_t *, | |
123 struct scsi_device *); | |
124 static int vhci_pgr_register_start(scsi_vhci_lun_t *, struct scsi_pkt *); | |
125 static int vhci_scsi_start(struct scsi_address *, struct scsi_pkt *); | |
126 static int vhci_scsi_abort(struct scsi_address *, struct scsi_pkt *); | |
127 static int vhci_scsi_reset(struct scsi_address *, int); | |
128 static int vhci_scsi_reset_target(struct scsi_address *, int level, | |
129 uint8_t select_path); | |
130 static int vhci_scsi_reset_bus(struct scsi_address *); | |
131 static int vhci_scsi_getcap(struct scsi_address *, char *, int); | |
132 static int vhci_scsi_setcap(struct scsi_address *, char *, int, int); | |
133 static int vhci_commoncap(struct scsi_address *, char *, int, int, int); | |
134 static int vhci_pHCI_cap(struct scsi_address *ap, char *cap, int val, int whom, | |
135 mdi_pathinfo_t *pip); | |
136 static struct scsi_pkt *vhci_scsi_init_pkt(struct scsi_address *, | |
137 struct scsi_pkt *, struct buf *, int, int, int, int, int (*)(), caddr_t); | |
138 static void vhci_scsi_destroy_pkt(struct scsi_address *, struct scsi_pkt *); | |
139 static void vhci_scsi_dmafree(struct scsi_address *, struct scsi_pkt *); | |
140 static void vhci_scsi_sync_pkt(struct scsi_address *, struct scsi_pkt *); | |
141 static int vhci_scsi_reset_notify(struct scsi_address *, int, void (*)(caddr_t), | |
142 caddr_t); | |
143 static int vhci_scsi_get_bus_addr(struct scsi_device *, char *, int); | |
144 static int vhci_scsi_get_name(struct scsi_device *, char *, int); | |
145 static int vhci_scsi_bus_power(dev_info_t *, void *, pm_bus_power_op_t, | |
146 void *, void *); | |
147 static int vhci_scsi_bus_config(dev_info_t *, uint_t, ddi_bus_config_op_t, | |
148 void *, dev_info_t **); | |
149 | |
150 /* | |
151 * functions registered with the mpxio framework via mdi_vhci_ops_t | |
152 */ | |
153 static int vhci_pathinfo_init(dev_info_t *, mdi_pathinfo_t *, int); | |
154 static int vhci_pathinfo_uninit(dev_info_t *, mdi_pathinfo_t *, int); | |
155 static int vhci_pathinfo_state_change(dev_info_t *, mdi_pathinfo_t *, | |
156 mdi_pathinfo_state_t, uint32_t, int); | |
157 static int vhci_pathinfo_online(dev_info_t *, mdi_pathinfo_t *, int); | |
158 static int vhci_pathinfo_offline(dev_info_t *, mdi_pathinfo_t *, int); | |
159 static int vhci_failover(dev_info_t *, dev_info_t *, int); | |
160 static void vhci_client_attached(dev_info_t *); | |
161 | |
162 static int vhci_ctl(dev_t, int, intptr_t, int, cred_t *, int *); | |
163 static int vhci_devctl(dev_t, int, intptr_t, int, cred_t *, int *); | |
164 static int vhci_ioc_get_phci_path(sv_iocdata_t *, caddr_t, int, caddr_t); | |
165 static int vhci_ioc_get_client_path(sv_iocdata_t *, caddr_t, int, caddr_t); | |
166 static int vhci_ioc_get_paddr(sv_iocdata_t *, caddr_t, int, caddr_t); | |
167 static int vhci_ioc_send_client_path(caddr_t, sv_iocdata_t *, int, caddr_t); | |
168 static void vhci_ioc_devi_to_path(dev_info_t *, caddr_t); | |
169 static int vhci_get_phci_path_list(dev_info_t *, sv_path_info_t *, uint_t); | |
170 static int vhci_get_client_path_list(dev_info_t *, sv_path_info_t *, uint_t); | |
171 static int vhci_get_iocdata(const void *, sv_iocdata_t *, int, caddr_t); | |
172 static int vhci_get_iocswitchdata(const void *, sv_switch_to_cntlr_iocdata_t *, | |
173 int, caddr_t); | |
174 static int vhci_ioc_alloc_pathinfo(sv_path_info_t **, sv_path_info_t **, | |
175 uint_t, sv_iocdata_t *, int, caddr_t); | |
176 static void vhci_ioc_free_pathinfo(sv_path_info_t *, sv_path_info_t *, uint_t); | |
177 static int vhci_ioc_send_pathinfo(sv_path_info_t *, sv_path_info_t *, uint_t, | |
178 sv_iocdata_t *, int, caddr_t); | |
179 static int vhci_handle_ext_fo(struct scsi_pkt *, int); | |
180 static int vhci_efo_watch_cb(caddr_t, struct scsi_watch_result *); | |
181 static int vhci_quiesce_lun(struct scsi_vhci_lun *); | |
182 static int vhci_pgr_validate_and_register(scsi_vhci_priv_t *); | |
183 static void vhci_dispatch_scsi_start(void *); | |
184 static void vhci_efo_done(void *); | |
185 static void vhci_initiate_auto_failback(void *); | |
186 static void vhci_update_pHCI_pkt(struct vhci_pkt *, struct scsi_pkt *); | |
187 static int vhci_update_pathinfo(struct scsi_device *, mdi_pathinfo_t *, | |
188 struct scsi_failover_ops *, scsi_vhci_lun_t *, struct scsi_vhci *); | |
189 static void vhci_kstat_create_pathinfo(mdi_pathinfo_t *); | |
190 static int vhci_quiesce_paths(dev_info_t *, dev_info_t *, | |
191 scsi_vhci_lun_t *, char *, char *); | |
192 | |
193 static char *vhci_devnm_to_guid(char *); | |
194 static int vhci_bind_transport(struct scsi_address *, struct vhci_pkt *, | |
195 int, int (*func)(caddr_t)); | |
196 static void vhci_intr(struct scsi_pkt *); | |
197 static int vhci_do_prout(scsi_vhci_priv_t *); | |
198 static void vhci_run_cmd(void *); | |
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199 static int vhci_do_prin(struct vhci_pkt **); |
4851 | 200 static struct scsi_pkt *vhci_create_retry_pkt(struct vhci_pkt *); |
201 static struct vhci_pkt *vhci_sync_retry_pkt(struct vhci_pkt *); | |
202 static struct scsi_vhci_lun *vhci_lun_lookup(dev_info_t *); | |
203 static struct scsi_vhci_lun *vhci_lun_lookup_alloc(dev_info_t *, char *, int *); | |
204 static void vhci_lun_free(dev_info_t *); | |
205 static int vhci_recovery_reset(scsi_vhci_lun_t *, struct scsi_address *, | |
206 uint8_t, uint8_t); | |
207 void vhci_update_pathstates(void *); | |
208 | |
209 #ifdef DEBUG | |
210 static void vhci_print_prin_keys(vhci_prin_readkeys_t *, int); | |
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211 static void vhci_print_cdb(dev_info_t *dip, uint_t level, |
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212 char *title, uchar_t *cdb); |
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213 static void vhci_clean_print(dev_info_t *dev, uint_t level, |
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214 char *title, uchar_t *data, int len); |
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215 #endif |
4851 | 216 static void vhci_print_prout_keys(scsi_vhci_lun_t *, char *); |
217 static void vhci_uscsi_iodone(struct scsi_pkt *pkt); | |
218 | |
219 /* | |
220 * MP-API related functions | |
221 */ | |
222 extern int vhci_mpapi_init(struct scsi_vhci *); | |
223 extern void vhci_mpapi_add_dev_prod(struct scsi_vhci *, char *); | |
224 extern int vhci_mpapi_ctl(dev_t, int, intptr_t, int, cred_t *, int *); | |
225 extern void vhci_update_mpapi_data(struct scsi_vhci *, | |
226 scsi_vhci_lun_t *, mdi_pathinfo_t *); | |
227 extern void* vhci_get_mpapi_item(struct scsi_vhci *, mpapi_list_header_t *, | |
228 uint8_t, void*); | |
229 extern void vhci_mpapi_set_path_state(dev_info_t *, mdi_pathinfo_t *, int); | |
230 extern int vhci_mpapi_update_tpg_acc_state_for_lu(struct scsi_vhci *, | |
231 scsi_vhci_lun_t *); | |
232 | |
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233 #define VHCI_DMA_MAX_XFER_CAP INT_MAX |
4851 | 234 |
235 #define VHCI_MAX_PGR_RETRIES 3 | |
236 | |
237 /* | |
238 * Macros for the device-type mpxio options | |
239 */ | |
240 #define LOAD_BALANCE_OPTIONS "load-balance-options" | |
241 #define LOGICAL_BLOCK_REGION_SIZE "region-size" | |
242 #define MPXIO_OPTIONS_LIST "device-type-mpxio-options-list" | |
243 #define DEVICE_TYPE_STR "device-type" | |
244 #define isdigit(ch) ((ch) >= '0' && (ch) <= '9') | |
245 | |
246 static struct cb_ops vhci_cb_ops = { | |
247 vhci_open, /* open */ | |
248 vhci_close, /* close */ | |
249 nodev, /* strategy */ | |
250 nodev, /* print */ | |
251 nodev, /* dump */ | |
252 nodev, /* read */ | |
253 nodev, /* write */ | |
254 vhci_ioctl, /* ioctl */ | |
255 nodev, /* devmap */ | |
256 nodev, /* mmap */ | |
257 nodev, /* segmap */ | |
258 nochpoll, /* chpoll */ | |
259 ddi_prop_op, /* cb_prop_op */ | |
260 0, /* streamtab */ | |
261 D_NEW | D_MP, /* cb_flag */ | |
262 CB_REV, /* rev */ | |
263 nodev, /* aread */ | |
264 nodev /* awrite */ | |
265 }; | |
266 | |
267 static struct dev_ops vhci_ops = { | |
268 DEVO_REV, | |
269 0, | |
270 vhci_getinfo, | |
271 nulldev, /* identify */ | |
272 nulldev, /* probe */ | |
273 vhci_attach, /* attach and detach are mandatory */ | |
274 vhci_detach, | |
275 nodev, /* reset */ | |
276 &vhci_cb_ops, /* cb_ops */ | |
277 NULL, /* bus_ops */ | |
278 NULL, /* power */ | |
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279 ddi_quiesce_not_needed, /* quiesce */ |
4851 | 280 }; |
281 | |
282 extern struct mod_ops mod_driverops; | |
283 | |
284 static struct modldrv modldrv = { | |
285 &mod_driverops, | |
286 vhci_version_name, /* module name */ | |
287 &vhci_ops | |
288 }; | |
289 | |
290 static struct modlinkage modlinkage = { | |
291 MODREV_1, | |
292 &modldrv, | |
293 NULL | |
294 }; | |
295 | |
296 static mdi_vhci_ops_t vhci_opinfo = { | |
297 MDI_VHCI_OPS_REV, | |
298 vhci_pathinfo_init, /* Pathinfo node init callback */ | |
299 vhci_pathinfo_uninit, /* Pathinfo uninit callback */ | |
300 vhci_pathinfo_state_change, /* Pathinfo node state change */ | |
301 vhci_failover, /* failover callback */ | |
302 vhci_client_attached /* client attached callback */ | |
303 }; | |
304 | |
305 /* | |
306 * The scsi_failover table defines an ordered set of 'fops' modules supported | |
307 * by scsi_vhci. Currently, initialize this table from the 'ddi-forceload' | |
308 * property specified in scsi_vhci.conf. | |
309 */ | |
310 struct scsi_failover { | |
311 ddi_modhandle_t sf_mod; | |
312 struct scsi_failover_ops *sf_sfo; | |
313 } *scsi_failover_table; | |
314 uint_t scsi_nfailover; | |
315 | |
316 int | |
317 _init(void) | |
318 { | |
319 int rval; | |
320 | |
321 /* | |
322 * Allocate soft state and prepare to do ddi_soft_state_zalloc() | |
323 * before registering with the transport first. | |
324 */ | |
325 if ((rval = ddi_soft_state_init(&vhci_softstate, | |
326 sizeof (struct scsi_vhci), 1)) != 0) { | |
327 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
328 "!_init:soft state init failed\n")); | |
329 return (rval); | |
330 } | |
331 | |
332 if ((rval = scsi_hba_init(&modlinkage)) != 0) { | |
333 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
334 "!_init: scsi hba init failed\n")); | |
335 ddi_soft_state_fini(&vhci_softstate); | |
336 return (rval); | |
337 } | |
338 | |
339 mutex_init(&vhci_global_mutex, NULL, MUTEX_DRIVER, NULL); | |
340 cv_init(&vhci_cv, NULL, CV_DRIVER, NULL); | |
341 | |
342 mutex_init(&vhci_targetmap_mutex, NULL, MUTEX_DRIVER, NULL); | |
343 vhci_targetmap_byport = mod_hash_create_strhash( | |
344 "vhci_targetmap_byport", 256, mod_hash_null_valdtor); | |
345 vhci_targetmap_bypid = mod_hash_create_idhash( | |
346 "vhci_targetmap_bypid", 256, mod_hash_null_valdtor); | |
347 | |
348 if ((rval = mod_install(&modlinkage)) != 0) { | |
349 VHCI_DEBUG(1, (CE_NOTE, NULL, "!_init: mod_install failed\n")); | |
350 if (vhci_targetmap_bypid) | |
351 mod_hash_destroy_idhash(vhci_targetmap_bypid); | |
352 if (vhci_targetmap_byport) | |
353 mod_hash_destroy_strhash(vhci_targetmap_byport); | |
354 mutex_destroy(&vhci_targetmap_mutex); | |
355 cv_destroy(&vhci_cv); | |
356 mutex_destroy(&vhci_global_mutex); | |
357 scsi_hba_fini(&modlinkage); | |
358 ddi_soft_state_fini(&vhci_softstate); | |
359 } | |
360 return (rval); | |
361 } | |
362 | |
363 | |
364 /* | |
365 * the system is done with us as a driver, so clean up | |
366 */ | |
367 int | |
368 _fini(void) | |
369 { | |
370 int rval; | |
371 | |
372 /* | |
373 * don't start cleaning up until we know that the module remove | |
374 * has worked -- if this works, then we know that each instance | |
375 * has successfully been DDI_DETACHed | |
376 */ | |
377 if ((rval = mod_remove(&modlinkage)) != 0) { | |
378 VHCI_DEBUG(4, (CE_NOTE, NULL, "!_fini: mod_remove failed\n")); | |
379 return (rval); | |
380 } | |
381 | |
382 if (vhci_targetmap_bypid) | |
383 mod_hash_destroy_idhash(vhci_targetmap_bypid); | |
384 if (vhci_targetmap_byport) | |
385 mod_hash_destroy_strhash(vhci_targetmap_byport); | |
386 mutex_destroy(&vhci_targetmap_mutex); | |
387 cv_destroy(&vhci_cv); | |
388 mutex_destroy(&vhci_global_mutex); | |
389 scsi_hba_fini(&modlinkage); | |
390 ddi_soft_state_fini(&vhci_softstate); | |
391 | |
392 return (rval); | |
393 } | |
394 | |
395 int | |
396 _info(struct modinfo *modinfop) | |
397 { | |
398 return (mod_info(&modlinkage, modinfop)); | |
399 } | |
400 | |
401 /* | |
402 * Lookup scsi_failover by "short name" of failover module. | |
403 */ | |
404 struct scsi_failover_ops * | |
405 vhci_failover_ops_by_name(char *name) | |
406 { | |
407 struct scsi_failover *sf; | |
408 | |
409 for (sf = scsi_failover_table; sf->sf_mod; sf++) { | |
410 if (sf->sf_sfo == NULL) | |
411 continue; | |
412 if (strcmp(sf->sf_sfo->sfo_name, name) == 0) | |
413 return (sf->sf_sfo); | |
414 } | |
415 return (NULL); | |
416 } | |
417 | |
418 /* | |
419 * Load all scsi_failover_ops 'fops' modules. | |
420 */ | |
421 static void | |
422 vhci_failover_modopen(struct scsi_vhci *vhci) | |
423 { | |
424 char **module; | |
425 int i; | |
426 struct scsi_failover *sf; | |
427 char **dt; | |
428 int e; | |
429 | |
430 if (scsi_failover_table) | |
431 return; | |
432 | |
433 /* Get the list of modules from scsi_vhci.conf */ | |
434 if (ddi_prop_lookup_string_array(DDI_DEV_T_ANY, | |
435 vhci->vhci_dip, DDI_PROP_DONTPASS, "ddi-forceload", | |
436 &module, &scsi_nfailover) != DDI_PROP_SUCCESS) { | |
437 cmn_err(CE_WARN, "scsi_vhci: " | |
438 "scsi_vhci.conf is missing 'ddi-forceload'"); | |
439 return; | |
440 } | |
441 if (scsi_nfailover == 0) { | |
442 cmn_err(CE_WARN, "scsi_vhci: " | |
443 "scsi_vhci.conf has empty 'ddi-forceload'"); | |
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444 ddi_prop_free(module); |
4851 | 445 return; |
446 } | |
447 | |
448 /* allocate failover table based on number of modules */ | |
449 scsi_failover_table = (struct scsi_failover *) | |
450 kmem_zalloc(sizeof (struct scsi_failover) * (scsi_nfailover + 1), | |
451 KM_SLEEP); | |
452 | |
453 /* loop over modules specified in scsi_vhci.conf and open each module */ | |
454 for (i = 0, sf = scsi_failover_table; i < scsi_nfailover; i++) { | |
455 if (module[i] == NULL) | |
456 continue; | |
457 | |
458 sf->sf_mod = ddi_modopen(module[i], KRTLD_MODE_FIRST, &e); | |
459 if (sf->sf_mod == NULL) { | |
460 /* | |
461 * A module returns EEXIST if other software is | |
462 * supporting the intended function: for example | |
463 * the scsi_vhci_f_sum_emc module returns EEXIST | |
464 * from _init if EMC powerpath software is installed. | |
465 */ | |
466 if (e != EEXIST) | |
467 cmn_err(CE_WARN, "scsi_vhci: unable to open " | |
468 "module '%s', error %d", module[i], e); | |
469 continue; | |
470 } | |
471 sf->sf_sfo = ddi_modsym(sf->sf_mod, | |
472 "scsi_vhci_failover_ops", &e); | |
473 if (sf->sf_sfo == NULL) { | |
474 cmn_err(CE_WARN, "scsi_vhci: " | |
475 "unable to import 'scsi_failover_ops' from '%s', " | |
476 "error %d", module[i], e); | |
477 (void) ddi_modclose(sf->sf_mod); | |
478 sf->sf_mod = NULL; | |
479 continue; | |
480 } | |
481 | |
482 /* register vid/pid of devices supported with mpapi */ | |
483 for (dt = sf->sf_sfo->sfo_devices; *dt; dt++) | |
484 vhci_mpapi_add_dev_prod(vhci, *dt); | |
485 sf++; | |
486 } | |
487 | |
488 /* verify that at least the "well-known" modules were there */ | |
489 if (vhci_failover_ops_by_name(SFO_NAME_SYM) == NULL) | |
490 cmn_err(CE_WARN, "scsi_vhci: well-known module \"" | |
491 SFO_NAME_SYM "\" not defined in scsi_vhci.conf's " | |
492 "'ddi-forceload'"); | |
493 if (vhci_failover_ops_by_name(SFO_NAME_TPGS) == NULL) | |
494 cmn_err(CE_WARN, "scsi_vhci: well-known module \"" | |
495 SFO_NAME_TPGS "\" not defined in scsi_vhci.conf's " | |
496 "'ddi-forceload'"); | |
497 | |
498 /* call sfo_init for modules that need it */ | |
499 for (sf = scsi_failover_table; sf->sf_mod; sf++) { | |
500 if (sf->sf_sfo && sf->sf_sfo->sfo_init) | |
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501 sf->sf_sfo->sfo_init(); |
4851 | 502 } |
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503 |
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504 ddi_prop_free(module); |
4851 | 505 } |
506 | |
507 /* | |
508 * unload all loaded scsi_failover_ops modules | |
509 */ | |
510 static void | |
511 vhci_failover_modclose() | |
512 { | |
513 struct scsi_failover *sf; | |
514 | |
515 for (sf = scsi_failover_table; sf->sf_mod; sf++) { | |
516 if ((sf->sf_mod == NULL) || (sf->sf_sfo == NULL)) | |
517 continue; | |
518 (void) ddi_modclose(sf->sf_mod); | |
519 sf->sf_mod = NULL; | |
520 sf->sf_sfo = NULL; | |
521 } | |
522 | |
523 if (scsi_failover_table && scsi_nfailover) | |
524 kmem_free(scsi_failover_table, | |
525 sizeof (struct scsi_failover) * (scsi_nfailover + 1)); | |
526 scsi_failover_table = NULL; | |
527 scsi_nfailover = 0; | |
528 } | |
529 | |
530 /* ARGSUSED */ | |
531 static int | |
532 vhci_open(dev_t *devp, int flag, int otype, cred_t *credp) | |
533 { | |
534 struct scsi_vhci *vhci; | |
535 | |
536 if (otype != OTYP_CHR) { | |
537 return (EINVAL); | |
538 } | |
539 | |
540 vhci = ddi_get_soft_state(vhci_softstate, MINOR2INST(getminor(*devp))); | |
541 if (vhci == NULL) { | |
542 VHCI_DEBUG(1, (CE_NOTE, NULL, "vhci_open: failed ENXIO\n")); | |
543 return (ENXIO); | |
544 } | |
545 | |
546 mutex_enter(&vhci->vhci_mutex); | |
547 if ((flag & FEXCL) && (vhci->vhci_state & VHCI_STATE_OPEN)) { | |
548 mutex_exit(&vhci->vhci_mutex); | |
549 vhci_log(CE_NOTE, vhci->vhci_dip, | |
550 "!vhci%d: Already open\n", getminor(*devp)); | |
551 return (EBUSY); | |
552 } | |
553 | |
554 vhci->vhci_state |= VHCI_STATE_OPEN; | |
555 mutex_exit(&vhci->vhci_mutex); | |
556 return (0); | |
557 } | |
558 | |
559 | |
560 /* ARGSUSED */ | |
561 static int | |
562 vhci_close(dev_t dev, int flag, int otype, cred_t *credp) | |
563 { | |
564 struct scsi_vhci *vhci; | |
565 | |
566 if (otype != OTYP_CHR) { | |
567 return (EINVAL); | |
568 } | |
569 | |
570 vhci = ddi_get_soft_state(vhci_softstate, MINOR2INST(getminor(dev))); | |
571 if (vhci == NULL) { | |
572 VHCI_DEBUG(1, (CE_NOTE, NULL, "vhci_close: failed ENXIO\n")); | |
573 return (ENXIO); | |
574 } | |
575 | |
576 mutex_enter(&vhci->vhci_mutex); | |
577 vhci->vhci_state &= ~VHCI_STATE_OPEN; | |
578 mutex_exit(&vhci->vhci_mutex); | |
579 | |
580 return (0); | |
581 } | |
582 | |
583 /* ARGSUSED */ | |
584 static int | |
585 vhci_ioctl(dev_t dev, int cmd, intptr_t data, int mode, | |
586 cred_t *credp, int *rval) | |
587 { | |
588 if (IS_DEVCTL(cmd)) { | |
589 return (vhci_devctl(dev, cmd, data, mode, credp, rval)); | |
590 } else if (cmd == MP_CMD) { | |
591 return (vhci_mpapi_ctl(dev, cmd, data, mode, credp, rval)); | |
592 } else { | |
593 return (vhci_ctl(dev, cmd, data, mode, credp, rval)); | |
594 } | |
595 } | |
596 | |
597 /* | |
598 * attach the module | |
599 */ | |
600 static int | |
601 vhci_attach(dev_info_t *dip, ddi_attach_cmd_t cmd) | |
602 { | |
603 int rval = DDI_FAILURE; | |
604 int scsi_hba_attached = 0; | |
605 int vhci_attached = 0; | |
606 int mutex_initted = 0; | |
607 int instance; | |
608 struct scsi_vhci *vhci; | |
609 scsi_hba_tran_t *tran; | |
610 char cache_name_buf[64]; | |
611 char *data; | |
612 | |
613 VHCI_DEBUG(4, (CE_NOTE, NULL, "vhci_attach: cmd=0x%x\n", cmd)); | |
614 | |
615 instance = ddi_get_instance(dip); | |
616 | |
617 switch (cmd) { | |
618 case DDI_ATTACH: | |
619 break; | |
620 | |
621 case DDI_RESUME: | |
622 case DDI_PM_RESUME: | |
623 VHCI_DEBUG(1, (CE_NOTE, NULL, "!vhci_attach: resume not yet" | |
624 "implemented\n")); | |
625 return (rval); | |
626 | |
627 default: | |
628 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
629 "!vhci_attach: unknown ddi command\n")); | |
630 return (rval); | |
631 } | |
632 | |
633 /* | |
634 * Allocate vhci data structure. | |
635 */ | |
636 if (ddi_soft_state_zalloc(vhci_softstate, instance) != DDI_SUCCESS) { | |
637 VHCI_DEBUG(1, (CE_NOTE, dip, "!vhci_attach:" | |
638 "soft state alloc failed\n")); | |
639 return (DDI_FAILURE); | |
640 } | |
641 | |
642 if ((vhci = ddi_get_soft_state(vhci_softstate, instance)) == NULL) { | |
643 VHCI_DEBUG(1, (CE_NOTE, dip, "!vhci_attach:" | |
644 "bad soft state\n")); | |
645 ddi_soft_state_free(vhci_softstate, instance); | |
646 return (DDI_FAILURE); | |
647 } | |
648 | |
649 /* Allocate packet cache */ | |
650 (void) snprintf(cache_name_buf, sizeof (cache_name_buf), | |
651 "vhci%d_cache", instance); | |
652 | |
653 mutex_init(&vhci->vhci_mutex, NULL, MUTEX_DRIVER, NULL); | |
654 mutex_initted++; | |
655 | |
656 /* | |
657 * Allocate a transport structure | |
658 */ | |
659 tran = scsi_hba_tran_alloc(dip, SCSI_HBA_CANSLEEP); | |
660 ASSERT(tran != NULL); | |
661 | |
662 vhci->vhci_tran = tran; | |
663 vhci->vhci_dip = dip; | |
664 vhci->vhci_instance = instance; | |
665 | |
666 tran->tran_hba_private = vhci; | |
667 tran->tran_tgt_private = NULL; | |
668 tran->tran_tgt_init = vhci_scsi_tgt_init; | |
669 tran->tran_tgt_probe = NULL; | |
670 tran->tran_tgt_free = vhci_scsi_tgt_free; | |
671 | |
672 tran->tran_start = vhci_scsi_start; | |
673 tran->tran_abort = vhci_scsi_abort; | |
674 tran->tran_reset = vhci_scsi_reset; | |
675 tran->tran_getcap = vhci_scsi_getcap; | |
676 tran->tran_setcap = vhci_scsi_setcap; | |
677 tran->tran_init_pkt = vhci_scsi_init_pkt; | |
678 tran->tran_destroy_pkt = vhci_scsi_destroy_pkt; | |
679 tran->tran_dmafree = vhci_scsi_dmafree; | |
680 tran->tran_sync_pkt = vhci_scsi_sync_pkt; | |
681 tran->tran_reset_notify = vhci_scsi_reset_notify; | |
682 | |
683 tran->tran_get_bus_addr = vhci_scsi_get_bus_addr; | |
684 tran->tran_get_name = vhci_scsi_get_name; | |
685 tran->tran_bus_reset = NULL; | |
686 tran->tran_quiesce = NULL; | |
687 tran->tran_unquiesce = NULL; | |
688 | |
689 /* | |
690 * register event notification routines with scsa | |
691 */ | |
692 tran->tran_get_eventcookie = NULL; | |
693 tran->tran_add_eventcall = NULL; | |
694 tran->tran_remove_eventcall = NULL; | |
695 tran->tran_post_event = NULL; | |
696 | |
697 tran->tran_bus_power = vhci_scsi_bus_power; | |
698 | |
699 tran->tran_bus_config = vhci_scsi_bus_config; | |
700 | |
701 /* | |
702 * Attach this instance with the mpxio framework | |
703 */ | |
704 if (mdi_vhci_register(MDI_HCI_CLASS_SCSI, dip, &vhci_opinfo, 0) | |
705 != MDI_SUCCESS) { | |
706 VHCI_DEBUG(1, (CE_NOTE, dip, "!vhci_attach:" | |
707 "mdi_vhci_register failed\n")); | |
708 goto attach_fail; | |
709 } | |
710 vhci_attached++; | |
711 | |
712 /* | |
713 * Attach this instance of the hba. | |
714 * | |
715 * Regarding dma attributes: Since scsi_vhci is a virtual scsi HBA | |
716 * driver, it has nothing to do with DMA. However, when calling | |
717 * scsi_hba_attach_setup() we need to pass something valid in the | |
718 * dma attributes parameter. So we just use scsi_alloc_attr. | |
719 * SCSA itself seems to care only for dma_attr_minxfer and | |
720 * dma_attr_burstsizes fields of dma attributes structure. | |
721 * It expects those fileds to be non-zero. | |
722 */ | |
723 if (scsi_hba_attach_setup(dip, &scsi_alloc_attr, tran, | |
724 SCSI_HBA_TRAN_CLONE) != DDI_SUCCESS) { | |
725 VHCI_DEBUG(1, (CE_NOTE, dip, "!vhci_attach:" | |
726 "hba attach failed\n")); | |
727 goto attach_fail; | |
728 } | |
729 scsi_hba_attached++; | |
730 | |
731 if (ddi_create_minor_node(dip, "devctl", S_IFCHR, | |
732 INST2DEVCTL(instance), DDI_NT_SCSI_NEXUS, 0) != DDI_SUCCESS) { | |
733 VHCI_DEBUG(1, (CE_NOTE, dip, "!vhci_attach:" | |
734 " ddi_create_minor_node failed\n")); | |
735 goto attach_fail; | |
736 } | |
737 | |
738 /* | |
739 * Set pm-want-child-notification property for | |
740 * power management of the phci and client | |
741 */ | |
742 if (ddi_prop_create(DDI_DEV_T_NONE, dip, DDI_PROP_CANSLEEP, | |
743 "pm-want-child-notification?", NULL, NULL) != DDI_PROP_SUCCESS) { | |
744 cmn_err(CE_WARN, | |
745 "%s%d fail to create pm-want-child-notification? prop", | |
746 ddi_driver_name(dip), ddi_get_instance(dip)); | |
747 goto attach_fail; | |
748 } | |
749 | |
750 vhci->vhci_taskq = taskq_create("vhci_taskq", 1, MINCLSYSPRI, 1, 4, 0); | |
751 vhci->vhci_update_pathstates_taskq = | |
752 taskq_create("vhci_update_pathstates", VHCI_NUM_UPDATE_TASKQ, | |
753 MINCLSYSPRI, 1, 4, 0); | |
754 ASSERT(vhci->vhci_taskq); | |
755 ASSERT(vhci->vhci_update_pathstates_taskq); | |
756 | |
757 /* | |
758 * Set appropriate configuration flags based on options set in | |
759 * conf file. | |
760 */ | |
761 vhci->vhci_conf_flags = 0; | |
762 if (ddi_prop_lookup_string(DDI_DEV_T_ANY, dip, PROPFLAGS, | |
763 "auto-failback", &data) == DDI_SUCCESS) { | |
764 if (strcmp(data, "enable") == 0) | |
765 vhci->vhci_conf_flags |= VHCI_CONF_FLAGS_AUTO_FAILBACK; | |
766 ddi_prop_free(data); | |
767 } | |
768 | |
769 if (!(vhci->vhci_conf_flags & VHCI_CONF_FLAGS_AUTO_FAILBACK)) | |
770 vhci_log(CE_NOTE, dip, "!Auto-failback capability " | |
771 "disabled through scsi_vhci.conf file."); | |
772 | |
773 /* | |
774 * Allocate an mpapi private structure | |
775 */ | |
776 vhci->mp_priv = kmem_zalloc(sizeof (mpapi_priv_t), KM_SLEEP); | |
777 if (vhci_mpapi_init(vhci) != 0) { | |
778 VHCI_DEBUG(1, (CE_WARN, NULL, "!vhci_attach: " | |
779 "vhci_mpapi_init() failed")); | |
780 } | |
781 | |
782 vhci_failover_modopen(vhci); /* load failover modules */ | |
783 | |
784 ddi_report_dev(dip); | |
785 return (DDI_SUCCESS); | |
786 | |
787 attach_fail: | |
788 if (vhci_attached) | |
789 (void) mdi_vhci_unregister(dip, 0); | |
790 | |
791 if (scsi_hba_attached) | |
792 (void) scsi_hba_detach(dip); | |
793 | |
794 if (vhci->vhci_tran) | |
795 scsi_hba_tran_free(vhci->vhci_tran); | |
796 | |
797 if (mutex_initted) { | |
798 mutex_destroy(&vhci->vhci_mutex); | |
799 } | |
800 | |
801 ddi_soft_state_free(vhci_softstate, instance); | |
802 return (DDI_FAILURE); | |
803 } | |
804 | |
805 | |
806 /*ARGSUSED*/ | |
807 static int | |
808 vhci_detach(dev_info_t *dip, ddi_detach_cmd_t cmd) | |
809 { | |
810 int instance = ddi_get_instance(dip); | |
811 scsi_hba_tran_t *tran; | |
812 struct scsi_vhci *vhci; | |
813 | |
814 VHCI_DEBUG(4, (CE_NOTE, NULL, "vhci_detach: cmd=0x%x\n", cmd)); | |
815 | |
816 if ((tran = ddi_get_driver_private(dip)) == NULL) | |
817 return (DDI_FAILURE); | |
818 | |
819 vhci = TRAN2HBAPRIVATE(tran); | |
820 if (!vhci) { | |
821 return (DDI_FAILURE); | |
822 } | |
823 | |
824 switch (cmd) { | |
825 case DDI_DETACH: | |
826 break; | |
827 | |
828 case DDI_SUSPEND: | |
829 case DDI_PM_SUSPEND: | |
830 VHCI_DEBUG(1, (CE_NOTE, NULL, "!vhci_detach: suspend/pm not yet" | |
831 "implemented\n")); | |
832 return (DDI_FAILURE); | |
833 | |
834 default: | |
835 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
836 "!vhci_detach: unknown ddi command\n")); | |
837 return (DDI_FAILURE); | |
838 } | |
839 | |
840 (void) mdi_vhci_unregister(dip, 0); | |
841 (void) scsi_hba_detach(dip); | |
842 scsi_hba_tran_free(tran); | |
843 | |
844 if (ddi_prop_remove(DDI_DEV_T_NONE, dip, | |
845 "pm-want-child-notification?") != DDI_PROP_SUCCESS) { | |
846 cmn_err(CE_WARN, | |
847 "%s%d unable to remove prop pm-want_child_notification?", | |
848 ddi_driver_name(dip), ddi_get_instance(dip)); | |
849 } | |
850 if (vhci_restart_timeid != 0) { | |
851 (void) untimeout(vhci_restart_timeid); | |
852 } | |
853 vhci_restart_timeid = 0; | |
854 | |
855 mutex_destroy(&vhci->vhci_mutex); | |
856 vhci->vhci_dip = NULL; | |
857 vhci->vhci_tran = NULL; | |
858 taskq_destroy(vhci->vhci_taskq); | |
859 taskq_destroy(vhci->vhci_update_pathstates_taskq); | |
860 ddi_remove_minor_node(dip, NULL); | |
861 ddi_soft_state_free(vhci_softstate, instance); | |
862 | |
863 vhci_failover_modclose(); /* unload failover modules */ | |
864 return (DDI_SUCCESS); | |
865 } | |
866 | |
867 /* | |
868 * vhci_getinfo() | |
869 * Given the device number, return the devinfo pointer or the | |
870 * instance number. | |
871 * Note: always succeed DDI_INFO_DEVT2INSTANCE, even before attach. | |
872 */ | |
873 | |
874 /*ARGSUSED*/ | |
875 static int | |
876 vhci_getinfo(dev_info_t *dip, ddi_info_cmd_t cmd, void *arg, void **result) | |
877 { | |
878 struct scsi_vhci *vhcip; | |
879 int instance = MINOR2INST(getminor((dev_t)arg)); | |
880 | |
881 switch (cmd) { | |
882 case DDI_INFO_DEVT2DEVINFO: | |
883 vhcip = ddi_get_soft_state(vhci_softstate, instance); | |
884 if (vhcip != NULL) | |
885 *result = vhcip->vhci_dip; | |
886 else { | |
887 *result = NULL; | |
888 return (DDI_FAILURE); | |
889 } | |
890 break; | |
891 | |
892 case DDI_INFO_DEVT2INSTANCE: | |
893 *result = (void *)(uintptr_t)instance; | |
894 break; | |
895 | |
896 default: | |
897 return (DDI_FAILURE); | |
898 } | |
899 | |
900 return (DDI_SUCCESS); | |
901 } | |
902 | |
903 /*ARGSUSED*/ | |
904 static int | |
905 vhci_scsi_tgt_init(dev_info_t *hba_dip, dev_info_t *tgt_dip, | |
906 scsi_hba_tran_t *hba_tran, struct scsi_device *sd) | |
907 { | |
908 char *guid; | |
909 scsi_vhci_lun_t *vlun; | |
910 struct scsi_vhci *vhci; | |
911 clock_t from_ticks; | |
912 mdi_pathinfo_t *pip; | |
913 int rval; | |
914 | |
915 ASSERT(hba_dip != NULL); | |
916 ASSERT(tgt_dip != NULL); | |
917 | |
6777 | 918 if (ddi_prop_lookup_string(DDI_DEV_T_ANY, tgt_dip, PROPFLAGS, |
919 MDI_CLIENT_GUID_PROP, &guid) != DDI_SUCCESS) { | |
920 /* | |
921 * This must be the .conf node without GUID property. | |
922 * The node under fp already inserts a delay, so we | |
923 * just return from here. We rely on this delay to have | |
924 * all dips be posted to the ndi hotplug thread's newdev | |
925 * list. This is necessary for the deferred attach | |
926 * mechanism to work and opens() done soon after boot to | |
927 * succeed. | |
928 */ | |
929 VHCI_DEBUG(4, (CE_WARN, hba_dip, "tgt_init: lun guid " | |
930 "property failed")); | |
931 return (DDI_NOT_WELL_FORMED); | |
932 } | |
933 | |
934 if (ndi_dev_is_persistent_node(tgt_dip) == 0) { | |
935 /* | |
936 * This must be .conf node with the GUID property. We don't | |
937 * merge property by ndi_merge_node() here because the | |
938 * devi_addr_buf of .conf node is "" always according the | |
939 * implementation of vhci_scsi_get_name_bus_addr(). | |
940 */ | |
941 ddi_set_name_addr(tgt_dip, NULL); | |
942 return (DDI_FAILURE); | |
943 } | |
944 | |
4851 | 945 vhci = ddi_get_soft_state(vhci_softstate, ddi_get_instance(hba_dip)); |
946 ASSERT(vhci != NULL); | |
947 | |
948 VHCI_DEBUG(4, (CE_NOTE, hba_dip, | |
949 "!tgt_init: called for %s (instance %d)\n", | |
950 ddi_driver_name(tgt_dip), ddi_get_instance(tgt_dip))); | |
951 | |
952 vlun = vhci_lun_lookup(tgt_dip); | |
953 | |
954 mutex_enter(&vhci_global_mutex); | |
955 | |
956 from_ticks = ddi_get_lbolt(); | |
957 if (vhci_to_ticks == 0) { | |
958 vhci_to_ticks = from_ticks + | |
959 drv_usectohz(vhci_init_wait_timeout); | |
960 } | |
961 | |
962 #if DEBUG | |
963 if (vlun) { | |
964 VHCI_DEBUG(1, (CE_WARN, hba_dip, "tgt_init: " | |
965 "vhci_scsi_tgt_init: guid %s : found vlun 0x%p " | |
966 "from_ticks %lx to_ticks %lx", | |
967 guid, (void *)vlun, from_ticks, vhci_to_ticks)); | |
968 } else { | |
969 VHCI_DEBUG(1, (CE_WARN, hba_dip, "tgt_init: " | |
970 "vhci_scsi_tgt_init: guid %s : vlun not found " | |
971 "from_ticks %lx to_ticks %lx", guid, from_ticks, | |
972 vhci_to_ticks)); | |
973 } | |
974 #endif | |
975 | |
976 rval = mdi_select_path(tgt_dip, NULL, | |
977 (MDI_SELECT_ONLINE_PATH | MDI_SELECT_STANDBY_PATH), NULL, &pip); | |
978 if (rval == MDI_SUCCESS) { | |
979 mdi_rele_path(pip); | |
980 } | |
981 | |
982 /* | |
983 * Wait for the following conditions : | |
984 * 1. no vlun available yet | |
985 * 2. no path established | |
986 * 3. timer did not expire | |
987 */ | |
988 while ((vlun == NULL) || (mdi_client_get_path_count(tgt_dip) == 0) || | |
989 (rval != MDI_SUCCESS)) { | |
990 if (vlun && vlun->svl_not_supported) { | |
991 VHCI_DEBUG(1, (CE_WARN, hba_dip, "tgt_init: " | |
992 "vlun 0x%p lun guid %s not supported!", | |
993 (void *)vlun, guid)); | |
994 mutex_exit(&vhci_global_mutex); | |
995 ddi_prop_free(guid); | |
996 return (DDI_NOT_WELL_FORMED); | |
997 } | |
998 if ((vhci_first_time == 0) && (from_ticks >= vhci_to_ticks)) { | |
999 vhci_first_time = 1; | |
1000 } | |
1001 if (vhci_first_time == 1) { | |
1002 VHCI_DEBUG(1, (CE_WARN, hba_dip, "vhci_scsi_tgt_init: " | |
1003 "no wait for %s. from_tick %lx, to_tick %lx", | |
1004 guid, from_ticks, vhci_to_ticks)); | |
1005 mutex_exit(&vhci_global_mutex); | |
1006 ddi_prop_free(guid); | |
1007 return (DDI_NOT_WELL_FORMED); | |
1008 } | |
1009 | |
1010 if (cv_timedwait(&vhci_cv, | |
1011 &vhci_global_mutex, vhci_to_ticks) == -1) { | |
1012 /* Timed out */ | |
1013 #ifdef DEBUG | |
1014 if (vlun == NULL) { | |
1015 VHCI_DEBUG(1, (CE_WARN, hba_dip, | |
1016 "tgt_init: no vlun for %s!", guid)); | |
1017 } else if (mdi_client_get_path_count(tgt_dip) == 0) { | |
1018 VHCI_DEBUG(1, (CE_WARN, hba_dip, | |
1019 "tgt_init: client path count is " | |
1020 "zero for %s!", guid)); | |
1021 } else { | |
1022 VHCI_DEBUG(1, (CE_WARN, hba_dip, | |
1023 "tgt_init: client path not " | |
1024 "available yet for %s!", guid)); | |
1025 } | |
1026 #endif /* DEBUG */ | |
1027 mutex_exit(&vhci_global_mutex); | |
1028 ddi_prop_free(guid); | |
1029 return (DDI_NOT_WELL_FORMED); | |
1030 } | |
1031 vlun = vhci_lun_lookup(tgt_dip); | |
1032 rval = mdi_select_path(tgt_dip, NULL, | |
1033 (MDI_SELECT_ONLINE_PATH | MDI_SELECT_STANDBY_PATH), | |
1034 NULL, &pip); | |
1035 if (rval == MDI_SUCCESS) { | |
1036 mdi_rele_path(pip); | |
1037 } | |
1038 from_ticks = ddi_get_lbolt(); | |
1039 } | |
1040 mutex_exit(&vhci_global_mutex); | |
1041 | |
1042 ASSERT(vlun != NULL); | |
1043 ddi_prop_free(guid); | |
1044 hba_tran->tran_tgt_private = vlun; | |
1045 | |
1046 return (DDI_SUCCESS); | |
1047 } | |
1048 | |
1049 /*ARGSUSED*/ | |
1050 static void | |
1051 vhci_scsi_tgt_free(dev_info_t *hba_dip, dev_info_t *tgt_dip, | |
1052 scsi_hba_tran_t *hba_tran, struct scsi_device *sd) | |
1053 { | |
1054 } | |
1055 | |
1056 /* | |
1057 * a PGR register command has started; copy the info we need | |
1058 */ | |
1059 int | |
1060 vhci_pgr_register_start(scsi_vhci_lun_t *vlun, struct scsi_pkt *pkt) | |
1061 { | |
1062 struct vhci_pkt *vpkt = TGTPKT2VHCIPKT(pkt); | |
1063 void *addr; | |
1064 | |
1065 if (!vpkt->vpkt_tgt_init_bp) | |
1066 return (TRAN_BADPKT); | |
1067 | |
1068 addr = bp_mapin_common(vpkt->vpkt_tgt_init_bp, | |
1069 (vpkt->vpkt_flags & CFLAG_NOWAIT) ? VM_NOSLEEP : VM_SLEEP); | |
1070 if (addr == NULL) | |
1071 return (TRAN_BUSY); | |
1072 | |
1073 mutex_enter(&vlun->svl_mutex); | |
1074 | |
1075 vhci_print_prout_keys(vlun, "v_pgr_reg_start: before bcopy:"); | |
1076 | |
1077 bcopy(addr, &vlun->svl_prout, sizeof (vhci_prout_t) - | |
1078 (2 * MHIOC_RESV_KEY_SIZE*sizeof (char))); | |
1079 bcopy(pkt->pkt_cdbp, vlun->svl_cdb, sizeof (vlun->svl_cdb)); | |
1080 | |
1081 vhci_print_prout_keys(vlun, "v_pgr_reg_start: after bcopy:"); | |
1082 | |
1083 vlun->svl_time = pkt->pkt_time; | |
1084 vlun->svl_bcount = vpkt->vpkt_tgt_init_bp->b_bcount; | |
1085 vlun->svl_first_path = vpkt->vpkt_path; | |
1086 mutex_exit(&vlun->svl_mutex); | |
1087 return (0); | |
1088 } | |
1089 | |
1090 /* | |
1091 * Function name : vhci_scsi_start() | |
1092 * | |
1093 * Return Values : TRAN_FATAL_ERROR - vhci has been shutdown | |
1094 * or other fatal failure | |
1095 * preventing packet transportation | |
1096 * TRAN_BUSY - request queue is full | |
1097 * TRAN_ACCEPT - pkt has been submitted to phci | |
1098 * (or is held in the waitQ) | |
1099 * Description : Implements SCSA's tran_start() entry point for | |
1100 * packet transport | |
1101 * | |
1102 */ | |
1103 static int | |
1104 vhci_scsi_start(struct scsi_address *ap, struct scsi_pkt *pkt) | |
1105 { | |
1106 int rval = TRAN_ACCEPT; | |
1107 int instance, held; | |
1108 struct scsi_vhci *vhci = ADDR2VHCI(ap); | |
1109 struct scsi_vhci_lun *vlun = ADDR2VLUN(ap); | |
1110 struct vhci_pkt *vpkt = TGTPKT2VHCIPKT(pkt); | |
1111 int flags = 0; | |
1112 scsi_vhci_priv_t *svp; | |
1113 dev_info_t *cdip; | |
1114 client_lb_t lbp; | |
1115 int restore_lbp = 0; | |
1116 /* set if pkt is SCSI-II RESERVE cmd */ | |
1117 int pkt_reserve_cmd = 0; | |
1118 int reserve_failed = 0; | |
1119 | |
1120 ASSERT(vhci != NULL); | |
1121 ASSERT(vpkt != NULL); | |
1122 ASSERT(vpkt->vpkt_state != VHCI_PKT_ISSUED); | |
1123 cdip = ADDR2DIP(ap); | |
1124 | |
1125 /* | |
1126 * Block IOs if LUN is held or QUIESCED for IOs. | |
1127 */ | |
1128 if ((VHCI_LUN_IS_HELD(vlun)) || | |
1129 ((vlun->svl_flags & VLUN_QUIESCED_FLG) == VLUN_QUIESCED_FLG)) { | |
1130 return (TRAN_BUSY); | |
1131 } | |
1132 | |
1133 /* | |
1134 * vhci_lun needs to be quiesced before SCSI-II RESERVE command | |
1135 * can be issued. This may require a cv_timedwait, which is | |
1136 * dangerous to perform in an interrupt context. So if this | |
1137 * is a RESERVE command a taskq is dispatched to service it. | |
1138 * This taskq shall again call vhci_scsi_start, but we shall be | |
1139 * sure its not in an interrupt context. | |
1140 */ | |
1141 if ((pkt->pkt_cdbp[0] == SCMD_RESERVE) || | |
1142 (pkt->pkt_cdbp[0] == SCMD_RESERVE_G1)) { | |
1143 if (!(vpkt->vpkt_state & VHCI_PKT_THRU_TASKQ)) { | |
1144 if (taskq_dispatch(vhci->vhci_taskq, | |
1145 vhci_dispatch_scsi_start, (void *) vpkt, | |
1146 KM_NOSLEEP)) { | |
1147 return (TRAN_ACCEPT); | |
1148 } else { | |
1149 return (TRAN_BUSY); | |
1150 } | |
1151 } | |
1152 | |
1153 /* | |
1154 * Here we ensure that simultaneous SCSI-II RESERVE cmds don't | |
1155 * get serviced for a lun. | |
1156 */ | |
1157 VHCI_HOLD_LUN(vlun, VH_NOSLEEP, held); | |
1158 if (!held) { | |
1159 return (TRAN_BUSY); | |
1160 } else if ((vlun->svl_flags & VLUN_QUIESCED_FLG) == | |
1161 VLUN_QUIESCED_FLG) { | |
1162 VHCI_RELEASE_LUN(vlun); | |
1163 return (TRAN_BUSY); | |
1164 } | |
1165 | |
1166 /* | |
1167 * To ensure that no IOs occur for this LUN for the duration | |
1168 * of this pkt set the VLUN_QUIESCED_FLG. | |
1169 * In case this routine needs to exit on error make sure that | |
1170 * this flag is cleared. | |
1171 */ | |
1172 vlun->svl_flags |= VLUN_QUIESCED_FLG; | |
1173 pkt_reserve_cmd = 1; | |
1174 | |
1175 /* | |
1176 * if this is a SCSI-II RESERVE command, set load balancing | |
1177 * policy to be ALTERNATE PATH to ensure that all subsequent | |
1178 * IOs are routed on the same path. This is because if commands | |
1179 * are routed across multiple paths then IOs on paths other than | |
1180 * the one on which the RESERVE was executed will get a | |
1181 * RESERVATION CONFLICT | |
1182 */ | |
1183 lbp = mdi_get_lb_policy(cdip); | |
1184 if (lbp != LOAD_BALANCE_NONE) { | |
1185 if (vhci_quiesce_lun(vlun) != 1) { | |
1186 vlun->svl_flags &= ~VLUN_QUIESCED_FLG; | |
1187 VHCI_RELEASE_LUN(vlun); | |
1188 return (TRAN_FATAL_ERROR); | |
1189 } | |
1190 vlun->svl_lb_policy_save = lbp; | |
1191 if (mdi_set_lb_policy(cdip, LOAD_BALANCE_NONE) != | |
1192 MDI_SUCCESS) { | |
1193 vlun->svl_flags &= ~VLUN_QUIESCED_FLG; | |
1194 VHCI_RELEASE_LUN(vlun); | |
1195 return (TRAN_FATAL_ERROR); | |
1196 } | |
1197 restore_lbp = 1; | |
1198 } | |
1199 /* | |
1200 * See comments for VLUN_RESERVE_ACTIVE_FLG in scsi_vhci.h | |
1201 * To narrow this window where a reserve command may be sent | |
1202 * down an inactive path the path states first need to be | |
1203 * updated. Before calling vhci_update_pathstates reset | |
1204 * VLUN_RESERVE_ACTIVE_FLG, just in case it was already set | |
1205 * for this lun. This shall prevent an unnecessary reset | |
1206 * from being sent out. | |
1207 */ | |
1208 vlun->svl_flags &= ~VLUN_RESERVE_ACTIVE_FLG; | |
1209 vhci_update_pathstates((void *)vlun); | |
1210 } | |
1211 | |
1212 instance = ddi_get_instance(vhci->vhci_dip); | |
1213 | |
1214 /* | |
1215 * If the command is PRIN with action of zero, then the cmd | |
1216 * is reading PR keys which requires filtering on completion. | |
1217 * Data cache sync must be guaranteed. | |
1218 */ | |
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1219 if ((pkt->pkt_cdbp[0] == SCMD_PRIN) && (pkt->pkt_cdbp[1] == 0) && |
4851 | 1220 (vpkt->vpkt_org_vpkt == NULL)) { |
1221 vpkt->vpkt_tgt_init_pkt_flags |= PKT_CONSISTENT; | |
1222 } | |
1223 | |
1224 /* | |
1225 * Do not defer bind for PKT_DMA_PARTIAL | |
1226 */ | |
1227 if ((vpkt->vpkt_flags & CFLAG_DMA_PARTIAL) == 0) { | |
1228 | |
1229 /* This is a non pkt_dma_partial case */ | |
1230 if ((rval = vhci_bind_transport( | |
1231 ap, vpkt, vpkt->vpkt_tgt_init_pkt_flags, NULL_FUNC)) | |
1232 != TRAN_ACCEPT) { | |
1233 VHCI_DEBUG(6, (CE_WARN, vhci->vhci_dip, | |
1234 "!vhci%d %x: failed to bind transport: " | |
1235 "vlun 0x%p pkt_reserved %x restore_lbp %x," | |
1236 "lbp %x", instance, rval, (void *)vlun, | |
1237 pkt_reserve_cmd, restore_lbp, lbp)); | |
1238 if (restore_lbp) | |
1239 (void) mdi_set_lb_policy(cdip, lbp); | |
1240 if (pkt_reserve_cmd) | |
1241 vlun->svl_flags &= ~VLUN_QUIESCED_FLG; | |
1242 return (rval); | |
1243 } | |
1244 VHCI_DEBUG(8, (CE_NOTE, NULL, | |
1245 "vhci_scsi_start: v_b_t called 0x%p\n", (void *)vpkt)); | |
1246 } | |
1247 ASSERT(vpkt->vpkt_hba_pkt != NULL); | |
1248 ASSERT(vpkt->vpkt_path != NULL); | |
1249 | |
1250 /* | |
1251 * This is the chance to adjust the pHCI's pkt and other information | |
1252 * from target driver's pkt. | |
1253 */ | |
1254 VHCI_DEBUG(8, (CE_NOTE, vhci->vhci_dip, "vhci_scsi_start vpkt %p\n", | |
1255 (void *)vpkt)); | |
1256 vhci_update_pHCI_pkt(vpkt, pkt); | |
1257 | |
1258 if (vlun->svl_flags & VLUN_RESERVE_ACTIVE_FLG) { | |
1259 if (vpkt->vpkt_path != vlun->svl_resrv_pip) { | |
1260 VHCI_DEBUG(1, (CE_WARN, vhci->vhci_dip, | |
1261 "!vhci_bind: reserve flag set for vlun 0x%p, but, " | |
1262 "pktpath 0x%p resrv path 0x%p differ. lb_policy %x", | |
1263 (void *)vlun, (void *)vpkt->vpkt_path, | |
1264 (void *)vlun->svl_resrv_pip, | |
1265 mdi_get_lb_policy(cdip))); | |
1266 reserve_failed = 1; | |
1267 } | |
1268 } | |
1269 | |
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1270 svp = (scsi_vhci_priv_t *)mdi_pi_get_vhci_private(vpkt->vpkt_path); |
4851 | 1271 if (svp == NULL || reserve_failed) { |
1272 if (pkt_reserve_cmd) { | |
1273 VHCI_DEBUG(6, (CE_WARN, vhci->vhci_dip, | |
1274 "!vhci_bind returned null svp vlun 0x%p", | |
1275 (void *)vlun)); | |
1276 vlun->svl_flags &= ~VLUN_QUIESCED_FLG; | |
1277 if (restore_lbp) | |
1278 (void) mdi_set_lb_policy(cdip, lbp); | |
1279 } | |
1280 pkt_cleanup: | |
1281 if ((vpkt->vpkt_flags & CFLAG_DMA_PARTIAL) == 0) { | |
1282 scsi_destroy_pkt(vpkt->vpkt_hba_pkt); | |
1283 vpkt->vpkt_hba_pkt = NULL; | |
1284 if (vpkt->vpkt_path) { | |
1285 mdi_rele_path(vpkt->vpkt_path); | |
1286 vpkt->vpkt_path = NULL; | |
1287 } | |
1288 } | |
1289 if ((pkt->pkt_cdbp[0] == SCMD_PROUT) && | |
1290 (((pkt->pkt_cdbp[1] & 0x1f) == VHCI_PROUT_REGISTER) || | |
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1291 ((pkt->pkt_cdbp[1] & 0x1f) == VHCI_PROUT_R_AND_IGNORE))) { |
4851 | 1292 sema_v(&vlun->svl_pgr_sema); |
1293 } | |
1294 return (TRAN_BUSY); | |
1295 } | |
1296 | |
1297 VHCI_INCR_PATH_CMDCOUNT(svp); | |
1298 | |
1299 /* | |
1300 * Ensure that no other IOs raced ahead, while a RESERVE cmd was | |
1301 * QUIESCING the same lun. | |
1302 */ | |
1303 if ((!pkt_reserve_cmd) && | |
1304 ((vlun->svl_flags & VLUN_QUIESCED_FLG) == VLUN_QUIESCED_FLG)) { | |
1305 VHCI_DECR_PATH_CMDCOUNT(svp); | |
1306 goto pkt_cleanup; | |
1307 } | |
1308 | |
1309 if ((pkt->pkt_cdbp[0] == SCMD_PRIN) || | |
1310 (pkt->pkt_cdbp[0] == SCMD_PROUT)) { | |
1311 /* | |
1312 * currently this thread only handles running PGR | |
1313 * commands, so don't bother creating it unless | |
1314 * something interesting is going to happen (like | |
1315 * either a PGR out, or a PGR in with enough space | |
1316 * to hold the keys that are getting returned) | |
1317 */ | |
1318 mutex_enter(&vlun->svl_mutex); | |
1319 if (((vlun->svl_flags & VLUN_TASK_D_ALIVE_FLG) == 0) && | |
1320 (pkt->pkt_cdbp[0] == SCMD_PROUT)) { | |
1321 vlun->svl_taskq = taskq_create("vlun_pgr_task_daemon", | |
1322 1, MINCLSYSPRI, 1, 4, 0); | |
1323 vlun->svl_flags |= VLUN_TASK_D_ALIVE_FLG; | |
1324 } | |
1325 mutex_exit(&vlun->svl_mutex); | |
1326 if ((pkt->pkt_cdbp[0] == SCMD_PROUT) && | |
1327 (((pkt->pkt_cdbp[1] & 0x1f) == VHCI_PROUT_REGISTER) || | |
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1328 ((pkt->pkt_cdbp[1] & 0x1f) == VHCI_PROUT_R_AND_IGNORE))) { |
4851 | 1329 if (rval = vhci_pgr_register_start(vlun, pkt)) { |
1330 /* an error */ | |
1331 sema_v(&vlun->svl_pgr_sema); | |
1332 return (rval); | |
1333 } | |
1334 } | |
1335 } | |
1336 | |
1337 /* | |
1338 * SCSI-II RESERVE cmd is not expected in polled mode. | |
1339 * If this changes it needs to be handled for the polled scenario. | |
1340 */ | |
1341 flags = vpkt->vpkt_hba_pkt->pkt_flags; | |
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1342 |
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1343 /* |
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1344 * Set the path_instance *before* sending the scsi_pkt down the path |
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1345 * to mpxio's pHCI so that additional path abstractions at a pHCI |
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1346 * level (like maybe iSCSI at some point in the future) can update |
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1347 * the path_instance. |
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1348 */ |
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1349 if (scsi_pkt_allocated_correctly(vpkt->vpkt_hba_pkt)) |
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1350 vpkt->vpkt_hba_pkt->pkt_path_instance = |
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1351 mdi_pi_get_path_instance(vpkt->vpkt_path); |
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1352 |
4851 | 1353 rval = scsi_transport(vpkt->vpkt_hba_pkt); |
1354 if (rval == TRAN_ACCEPT) { | |
1355 if (flags & FLAG_NOINTR) { | |
1356 struct scsi_pkt *tpkt = vpkt->vpkt_tgt_pkt; | |
1357 struct scsi_pkt *pkt = vpkt->vpkt_hba_pkt; | |
1358 | |
1359 ASSERT(tpkt != NULL); | |
1360 *(tpkt->pkt_scbp) = *(pkt->pkt_scbp); | |
1361 tpkt->pkt_resid = pkt->pkt_resid; | |
1362 tpkt->pkt_state = pkt->pkt_state; | |
1363 tpkt->pkt_statistics = pkt->pkt_statistics; | |
1364 tpkt->pkt_reason = pkt->pkt_reason; | |
1365 | |
1366 if ((*(pkt->pkt_scbp) == STATUS_CHECK) && | |
1367 (pkt->pkt_state & STATE_ARQ_DONE)) { | |
1368 bcopy(pkt->pkt_scbp, tpkt->pkt_scbp, | |
1369 vpkt->vpkt_tgt_init_scblen); | |
1370 } | |
1371 | |
1372 VHCI_DECR_PATH_CMDCOUNT(svp); | |
1373 if ((vpkt->vpkt_flags & CFLAG_DMA_PARTIAL) == 0) { | |
1374 scsi_destroy_pkt(vpkt->vpkt_hba_pkt); | |
1375 vpkt->vpkt_hba_pkt = NULL; | |
1376 if (vpkt->vpkt_path) { | |
1377 mdi_rele_path(vpkt->vpkt_path); | |
1378 vpkt->vpkt_path = NULL; | |
1379 } | |
1380 } | |
1381 /* | |
1382 * This path will not automatically retry pkts | |
1383 * internally, therefore, vpkt_org_vpkt should | |
1384 * never be set. | |
1385 */ | |
1386 ASSERT(vpkt->vpkt_org_vpkt == NULL); | |
1387 if (tpkt->pkt_comp) { | |
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1388 tpkt->pkt_comp(tpkt); |
4851 | 1389 } |
1390 } | |
1391 return (rval); | |
1392 } else if ((pkt->pkt_cdbp[0] == SCMD_PROUT) && | |
1393 (((pkt->pkt_cdbp[1] & 0x1f) == VHCI_PROUT_REGISTER) || | |
1394 ((pkt->pkt_cdbp[1] & 0x1f) == VHCI_PROUT_R_AND_IGNORE))) { | |
1395 /* the command exited with bad status */ | |
1396 sema_v(&vlun->svl_pgr_sema); | |
1397 } else if (vpkt->vpkt_tgt_pkt->pkt_cdbp[0] == SCMD_PRIN) { | |
1398 /* the command exited with bad status */ | |
1399 sema_v(&vlun->svl_pgr_sema); | |
1400 } else if (pkt_reserve_cmd) { | |
1401 VHCI_DEBUG(6, (CE_WARN, vhci->vhci_dip, | |
1402 "!vhci_scsi_start: reserve failed vlun 0x%p", | |
1403 (void *)vlun)); | |
1404 vlun->svl_flags &= ~VLUN_QUIESCED_FLG; | |
1405 if (restore_lbp) | |
1406 (void) mdi_set_lb_policy(cdip, lbp); | |
1407 } | |
1408 | |
1409 ASSERT(vpkt->vpkt_hba_pkt != NULL); | |
1410 VHCI_DECR_PATH_CMDCOUNT(svp); | |
1411 | |
1412 /* Do not destroy phci packet information for PKT_DMA_PARTIAL */ | |
1413 if ((vpkt->vpkt_flags & CFLAG_DMA_PARTIAL) == 0) { | |
1414 scsi_destroy_pkt(vpkt->vpkt_hba_pkt); | |
1415 vpkt->vpkt_hba_pkt = NULL; | |
1416 if (vpkt->vpkt_path) { | |
1417 MDI_PI_ERRSTAT(vpkt->vpkt_path, MDI_PI_TRANSERR); | |
1418 mdi_rele_path(vpkt->vpkt_path); | |
1419 vpkt->vpkt_path = NULL; | |
1420 } | |
1421 } | |
1422 return (TRAN_BUSY); | |
1423 } | |
1424 | |
1425 /* | |
1426 * Function name : vhci_scsi_reset() | |
1427 * | |
1428 * Return Values : 0 - reset failed | |
1429 * 1 - reset succeeded | |
1430 */ | |
1431 | |
1432 /* ARGSUSED */ | |
1433 static int | |
1434 vhci_scsi_reset(struct scsi_address *ap, int level) | |
1435 { | |
1436 int rval = 0; | |
1437 | |
1438 cmn_err(CE_WARN, "!vhci_scsi_reset 0x%x", level); | |
1439 if ((level == RESET_TARGET) || (level == RESET_LUN)) { | |
1440 return (vhci_scsi_reset_target(ap, level, TRUE)); | |
1441 } else if (level == RESET_ALL) { | |
1442 return (vhci_scsi_reset_bus(ap)); | |
1443 } | |
1444 | |
1445 return (rval); | |
1446 } | |
1447 | |
1448 /* | |
1449 * vhci_recovery_reset: | |
1450 * Issues reset to the device | |
1451 * Input: | |
1452 * vlun - vhci lun pointer of the device | |
1453 * ap - address of the device | |
1454 * select_path: | |
1455 * If select_path is FALSE, then the address specified in ap is | |
1456 * the path on which reset will be issued. | |
1457 * If select_path is TRUE, then path is obtained by calling | |
1458 * mdi_select_path. | |
1459 * | |
1460 * recovery_depth: | |
1461 * Caller can specify the level of reset. | |
1462 * VHCI_DEPTH_LUN - | |
1463 * Issues LUN RESET if device supports lun reset. | |
1464 * VHCI_DEPTH_TARGET - | |
1465 * If Lun Reset fails or the device does not support | |
1466 * Lun Reset, issues TARGET RESET | |
1467 * VHCI_DEPTH_ALL - | |
1468 * If Lun Reset fails or the device does not support | |
1469 * Lun Reset, issues TARGET RESET. | |
1470 * If TARGET RESET does not succeed, issues Bus Reset. | |
1471 */ | |
1472 | |
1473 static int | |
1474 vhci_recovery_reset(scsi_vhci_lun_t *vlun, struct scsi_address *ap, | |
1475 uint8_t select_path, uint8_t recovery_depth) | |
1476 { | |
1477 int ret = 0; | |
1478 | |
1479 ASSERT(ap != NULL); | |
1480 | |
1481 if (vlun && vlun->svl_support_lun_reset == 1) { | |
1482 ret = vhci_scsi_reset_target(ap, RESET_LUN, | |
1483 select_path); | |
1484 } | |
1485 | |
1486 recovery_depth--; | |
1487 | |
1488 if ((ret == 0) && recovery_depth) { | |
1489 ret = vhci_scsi_reset_target(ap, RESET_TARGET, | |
1490 select_path); | |
1491 recovery_depth--; | |
1492 } | |
1493 | |
1494 if ((ret == 0) && recovery_depth) { | |
1495 (void) scsi_reset(ap, RESET_ALL); | |
1496 } | |
1497 | |
1498 return (ret); | |
1499 } | |
1500 | |
1501 /* | |
1502 * Note: The scsi_address passed to this routine could be the scsi_address | |
1503 * for the virtual device or the physical device. No assumptions should be | |
1504 * made in this routine about the ap structure and a_hba_tran->tran_tgt_private | |
1505 * field of ap can not be assumed to be the vhci structure. | |
1506 * Further note that the child dip would be the dip of the ssd node irrespective | |
1507 * of the scsi_address passed. | |
1508 */ | |
1509 | |
1510 static int | |
1511 vhci_scsi_reset_target(struct scsi_address *ap, int level, uint8_t select_path) | |
1512 { | |
1513 dev_info_t *vdip, *pdip, *cdip = ADDR2DIP(ap); | |
1514 mdi_pathinfo_t *pip = NULL; | |
1515 mdi_pathinfo_t *npip = NULL; | |
1516 int rval = -1; | |
1517 scsi_vhci_priv_t *svp = NULL; | |
1518 struct scsi_address *pap = NULL; | |
1519 scsi_hba_tran_t *hba = NULL; | |
1520 int sps; | |
1521 struct scsi_vhci *vhci = NULL; | |
1522 | |
1523 if (select_path != TRUE) { | |
1524 ASSERT(ap != NULL); | |
1525 if (level == RESET_LUN) { | |
1526 hba = ap->a_hba_tran; | |
1527 ASSERT(hba != NULL); | |
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1528 return (hba->tran_reset(ap, RESET_LUN)); |
4851 | 1529 } |
1530 return (scsi_reset(ap, level)); | |
1531 } | |
1532 | |
1533 ASSERT(cdip != NULL); | |
1534 vdip = ddi_get_parent(cdip); | |
1535 ASSERT(vdip != NULL); | |
1536 vhci = ddi_get_soft_state(vhci_softstate, ddi_get_instance(vdip)); | |
1537 ASSERT(vhci != NULL); | |
1538 | |
1539 rval = mdi_select_path(cdip, NULL, MDI_SELECT_ONLINE_PATH, NULL, &pip); | |
1540 if ((rval != MDI_SUCCESS) || (pip == NULL)) { | |
1541 VHCI_DEBUG(2, (CE_WARN, NULL, "!vhci_scsi_reset_target: " | |
1542 "Unable to get a path, dip 0x%p", (void *)cdip)); | |
1543 return (0); | |
1544 } | |
1545 again: | |
1546 svp = (scsi_vhci_priv_t *)mdi_pi_get_vhci_private(pip); | |
1547 if (svp == NULL) { | |
1548 VHCI_DEBUG(2, (CE_WARN, NULL, "!vhci_scsi_reset_target: " | |
1549 "priv is NULL, pip 0x%p", (void *)pip)); | |
1550 mdi_rele_path(pip); | |
1551 return (0); | |
1552 } | |
1553 | |
1554 if (svp->svp_psd == NULL) { | |
1555 VHCI_DEBUG(2, (CE_WARN, NULL, "!vhci_scsi_reset_target: " | |
1556 "psd is NULL, pip 0x%p, svp 0x%p", | |
1557 (void *)pip, (void *)svp)); | |
1558 mdi_rele_path(pip); | |
1559 return (0); | |
1560 } | |
1561 | |
1562 pap = &svp->svp_psd->sd_address; | |
1563 hba = pap->a_hba_tran; | |
1564 | |
1565 ASSERT(pap != NULL); | |
1566 ASSERT(hba != NULL); | |
1567 | |
1568 if (hba->tran_reset != NULL) { | |
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1569 if (hba->tran_reset(pap, level) == 0) { |
4851 | 1570 pdip = mdi_pi_get_phci(pip); |
1571 vhci_log(CE_WARN, vdip, "!(%s%d):" | |
1572 " path (%s%d), reset %d failed", | |
1573 ddi_driver_name(cdip), ddi_get_instance(cdip), | |
1574 ddi_driver_name(pdip), ddi_get_instance(pdip), | |
1575 level); | |
1576 | |
1577 /* | |
1578 * Select next path and issue the reset, repeat | |
1579 * until all paths are exhausted | |
1580 */ | |
1581 sps = mdi_select_path(cdip, NULL, | |
1582 MDI_SELECT_ONLINE_PATH, pip, &npip); | |
1583 if ((sps != MDI_SUCCESS) || (npip == NULL)) { | |
1584 mdi_rele_path(pip); | |
1585 return (0); | |
1586 } | |
1587 mdi_rele_path(pip); | |
1588 pip = npip; | |
1589 goto again; | |
1590 } | |
1591 mdi_rele_path(pip); | |
1592 mutex_enter(&vhci->vhci_mutex); | |
1593 scsi_hba_reset_notify_callback(&vhci->vhci_mutex, | |
1594 &vhci->vhci_reset_notify_listf); | |
1595 mutex_exit(&vhci->vhci_mutex); | |
1596 VHCI_DEBUG(6, (CE_NOTE, NULL, "!vhci_scsi_reset_target: " | |
1597 "reset %d sent down pip:%p for cdip:%p\n", level, | |
1598 (void *)pip, (void *)cdip)); | |
1599 return (1); | |
1600 } | |
1601 mdi_rele_path(pip); | |
1602 return (0); | |
1603 } | |
1604 | |
1605 | |
1606 /* ARGSUSED */ | |
1607 static int | |
1608 vhci_scsi_reset_bus(struct scsi_address *ap) | |
1609 { | |
1610 return (1); | |
1611 } | |
1612 | |
1613 | |
1614 /* | |
1615 * called by vhci_getcap and vhci_setcap to get and set (respectively) | |
1616 * SCSI capabilities | |
1617 */ | |
1618 /* ARGSUSED */ | |
1619 static int | |
1620 vhci_commoncap(struct scsi_address *ap, char *cap, | |
1621 int val, int tgtonly, int doset) | |
1622 { | |
1623 struct scsi_vhci *vhci = ADDR2VHCI(ap); | |
1624 struct scsi_vhci_lun *vlun = ADDR2VLUN(ap); | |
1625 int cidx; | |
1626 int rval = 0; | |
1627 | |
1628 if (cap == (char *)0) { | |
1629 VHCI_DEBUG(3, (CE_WARN, vhci->vhci_dip, | |
1630 "!vhci_commoncap: invalid arg")); | |
1631 return (rval); | |
1632 } | |
1633 | |
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1634 if (vlun == NULL) { |
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1635 VHCI_DEBUG(3, (CE_WARN, vhci->vhci_dip, |
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1636 "!vhci_commoncap: vlun is null")); |
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1637 return (rval); |
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1638 } |
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1639 |
4851 | 1640 if ((cidx = scsi_hba_lookup_capstr(cap)) == -1) { |
1641 return (UNDEFINED); | |
1642 } | |
1643 | |
1644 /* | |
1645 * Process setcap request. | |
1646 */ | |
1647 if (doset) { | |
1648 /* | |
1649 * At present, we can only set binary (0/1) values | |
1650 */ | |
1651 switch (cidx) { | |
1652 case SCSI_CAP_ARQ: | |
1653 if (val == 0) { | |
1654 rval = 0; | |
1655 } else { | |
1656 rval = 1; | |
1657 } | |
1658 break; | |
1659 | |
1660 case SCSI_CAP_LUN_RESET: | |
1661 if (tgtonly == 0) { | |
1662 VHCI_DEBUG(1, (CE_WARN, vhci->vhci_dip, | |
1663 "scsi_vhci_setcap: " | |
1664 "Returning error since whom = 0")); | |
1665 rval = -1; | |
1666 break; | |
1667 } | |
1668 /* | |
1669 * Set the capability accordingly. | |
1670 */ | |
1671 mutex_enter(&vlun->svl_mutex); | |
1672 vlun->svl_support_lun_reset = val; | |
1673 rval = val; | |
1674 mutex_exit(&vlun->svl_mutex); | |
1675 break; | |
1676 | |
1677 case SCSI_CAP_SECTOR_SIZE: | |
1678 mutex_enter(&vlun->svl_mutex); | |
1679 vlun->svl_sector_size = val; | |
1680 vlun->svl_setcap_done = 1; | |
1681 mutex_exit(&vlun->svl_mutex); | |
1682 (void) vhci_pHCI_cap(ap, cap, val, tgtonly, NULL); | |
1683 | |
1684 /* Always return success */ | |
1685 rval = 1; | |
1686 break; | |
1687 | |
1688 default: | |
1689 VHCI_DEBUG(6, (CE_WARN, vhci->vhci_dip, | |
1690 "!vhci_setcap: unsupported %d", cidx)); | |
1691 rval = UNDEFINED; | |
1692 break; | |
1693 } | |
1694 | |
1695 VHCI_DEBUG(6, (CE_NOTE, vhci->vhci_dip, | |
1696 "!set cap: cap=%s, val/tgtonly/doset/rval = " | |
1697 "0x%x/0x%x/0x%x/%d\n", | |
1698 cap, val, tgtonly, doset, rval)); | |
1699 | |
1700 } else { | |
1701 /* | |
1702 * Process getcap request. | |
1703 */ | |
1704 switch (cidx) { | |
1705 case SCSI_CAP_DMA_MAX: | |
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1706 /* |
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1707 * For X86 this capability is caught in scsi_ifgetcap(). |
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1708 * XXX Should this be getting the value from the pHCI? |
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1709 */ |
4851 | 1710 rval = (int)VHCI_DMA_MAX_XFER_CAP; |
1711 break; | |
1712 | |
1713 case SCSI_CAP_INITIATOR_ID: | |
1714 rval = 0x00; | |
1715 break; | |
1716 | |
1717 case SCSI_CAP_ARQ: | |
1718 case SCSI_CAP_RESET_NOTIFICATION: | |
1719 case SCSI_CAP_TAGGED_QING: | |
1720 rval = 1; | |
1721 break; | |
1722 | |
1723 case SCSI_CAP_SCSI_VERSION: | |
1724 rval = 3; | |
1725 break; | |
1726 | |
1727 case SCSI_CAP_INTERCONNECT_TYPE: | |
1728 rval = INTERCONNECT_FABRIC; | |
1729 break; | |
1730 | |
1731 case SCSI_CAP_LUN_RESET: | |
1732 /* | |
1733 * scsi_vhci will always return success for LUN reset. | |
1734 * When request for doing LUN reset comes | |
1735 * through scsi_reset entry point, at that time attempt | |
1736 * will be made to do reset through all the possible | |
1737 * paths. | |
1738 */ | |
1739 mutex_enter(&vlun->svl_mutex); | |
1740 rval = vlun->svl_support_lun_reset; | |
1741 mutex_exit(&vlun->svl_mutex); | |
1742 VHCI_DEBUG(4, (CE_WARN, vhci->vhci_dip, | |
1743 "scsi_vhci_getcap:" | |
1744 "Getting the Lun reset capability %d", rval)); | |
1745 break; | |
1746 | |
1747 case SCSI_CAP_SECTOR_SIZE: | |
1748 mutex_enter(&vlun->svl_mutex); | |
1749 rval = vlun->svl_sector_size; | |
1750 mutex_exit(&vlun->svl_mutex); | |
1751 break; | |
1752 | |
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1753 case SCSI_CAP_CDB_LEN: |
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1754 rval = VHCI_SCSI_CDB_SIZE; |
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1755 break; |
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1756 |
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1757 case SCSI_CAP_DMA_MAX_ARCH: |
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1758 /* |
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1759 * For X86 this capability is caught in scsi_ifgetcap(). |
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1760 * XXX Should this be getting the value from the pHCI? |
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1761 */ |
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1762 rval = 0; |
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1763 break; |
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1764 |
4851 | 1765 default: |
1766 VHCI_DEBUG(6, (CE_WARN, vhci->vhci_dip, | |
1767 "!vhci_getcap: unsupported %d", cidx)); | |
1768 rval = UNDEFINED; | |
1769 break; | |
1770 } | |
1771 | |
1772 VHCI_DEBUG(6, (CE_NOTE, vhci->vhci_dip, | |
1773 "!get cap: cap=%s, val/tgtonly/doset/rval = " | |
1774 "0x%x/0x%x/0x%x/%d\n", | |
1775 cap, val, tgtonly, doset, rval)); | |
1776 } | |
1777 return (rval); | |
1778 } | |
1779 | |
1780 | |
1781 /* | |
1782 * Function name : vhci_scsi_getcap() | |
1783 * | |
1784 */ | |
1785 static int | |
1786 vhci_scsi_getcap(struct scsi_address *ap, char *cap, int whom) | |
1787 { | |
1788 return (vhci_commoncap(ap, cap, 0, whom, 0)); | |
1789 } | |
1790 | |
1791 static int | |
1792 vhci_scsi_setcap(struct scsi_address *ap, char *cap, int value, int whom) | |
1793 { | |
1794 return (vhci_commoncap(ap, cap, value, whom, 1)); | |
1795 } | |
1796 | |
1797 /* | |
1798 * Function name : vhci_scsi_abort() | |
1799 */ | |
1800 /* ARGSUSED */ | |
1801 static int | |
1802 vhci_scsi_abort(struct scsi_address *ap, struct scsi_pkt *pkt) | |
1803 { | |
1804 return (0); | |
1805 } | |
1806 | |
1807 /* | |
1808 * Function name : vhci_scsi_init_pkt | |
1809 * | |
1810 * Return Values : pointer to scsi_pkt, or NULL | |
1811 */ | |
1812 /* ARGSUSED */ | |
1813 static struct scsi_pkt * | |
1814 vhci_scsi_init_pkt(struct scsi_address *ap, struct scsi_pkt *pkt, | |
1815 struct buf *bp, int cmdlen, int statuslen, int tgtlen, | |
1816 int flags, int (*callback)(caddr_t), caddr_t arg) | |
1817 { | |
1818 struct scsi_vhci *vhci = ADDR2VHCI(ap); | |
1819 struct vhci_pkt *vpkt; | |
1820 int rval; | |
1821 int newpkt = 0; | |
1822 struct scsi_pkt *pktp; | |
1823 | |
1824 | |
1825 if (pkt == NULL) { | |
1826 if (cmdlen > VHCI_SCSI_CDB_SIZE) { | |
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1827 if ((cmdlen != VHCI_SCSI_OSD_CDB_SIZE) || |
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1828 ((flags & VHCI_SCSI_OSD_PKT_FLAGS) != |
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1829 VHCI_SCSI_OSD_PKT_FLAGS)) { |
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Ramana.Srikanth <Ramana.Srikanth@Sun.COM>
parents:
7461
diff
changeset
|
1830 VHCI_DEBUG(1, (CE_NOTE, NULL, |
82798d9a3db9
6747477 scsi_vhci should not check for cdb length while initializing scsi_pkt
Ramana.Srikanth <Ramana.Srikanth@Sun.COM>
parents:
7461
diff
changeset
|
1831 "!init pkt: cdb size not supported\n")); |
82798d9a3db9
6747477 scsi_vhci should not check for cdb length while initializing scsi_pkt
Ramana.Srikanth <Ramana.Srikanth@Sun.COM>
parents:
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diff
changeset
|
1832 return (NULL); |
82798d9a3db9
6747477 scsi_vhci should not check for cdb length while initializing scsi_pkt
Ramana.Srikanth <Ramana.Srikanth@Sun.COM>
parents:
7461
diff
changeset
|
1833 } |
4851 | 1834 } |
1835 | |
1836 pktp = scsi_hba_pkt_alloc(vhci->vhci_dip, | |
1837 ap, cmdlen, statuslen, tgtlen, sizeof (*vpkt), callback, | |
1838 arg); | |
1839 | |
1840 if (pktp == NULL) { | |
1841 return (NULL); | |
1842 } | |
1843 | |
1844 /* Get the vhci's private structure */ | |
1845 vpkt = (struct vhci_pkt *)(pktp->pkt_ha_private); | |
1846 ASSERT(vpkt); | |
1847 | |
1848 /* Save the target driver's packet */ | |
1849 vpkt->vpkt_tgt_pkt = pktp; | |
1850 | |
1851 /* | |
1852 * Save pkt_tgt_init_pkt fields if deferred binding | |
1853 * is needed or for other purposes. | |
1854 */ | |
1855 vpkt->vpkt_tgt_init_pkt_flags = flags; | |
1856 vpkt->vpkt_flags = (callback == NULL_FUNC) ? CFLAG_NOWAIT : 0; | |
1857 vpkt->vpkt_state = VHCI_PKT_IDLE; | |
1858 vpkt->vpkt_tgt_init_cdblen = cmdlen; | |
1859 vpkt->vpkt_tgt_init_scblen = statuslen; | |
1860 newpkt = 1; | |
1861 } else { /* pkt not NULL */ | |
1862 vpkt = pkt->pkt_ha_private; | |
1863 } | |
1864 | |
1865 VHCI_DEBUG(8, (CE_NOTE, NULL, "vhci_scsi_init_pkt " | |
1866 "vpkt %p flags %x\n", (void *)vpkt, flags)); | |
1867 | |
1868 /* Clear any stale error flags */ | |
1869 if (bp) { | |
1870 bioerror(bp, 0); | |
1871 } | |
1872 | |
1873 vpkt->vpkt_tgt_init_bp = bp; | |
1874 | |
1875 if (flags & PKT_DMA_PARTIAL) { | |
1876 | |
1877 /* | |
1878 * Immediate binding is needed. | |
1879 * Target driver may not set this flag in next invocation. | |
1880 * vhci has to remember this flag was set during first | |
1881 * invocation of vhci_scsi_init_pkt. | |
1882 */ | |
1883 vpkt->vpkt_flags |= CFLAG_DMA_PARTIAL; | |
1884 } | |
1885 | |
1886 if (vpkt->vpkt_flags & CFLAG_DMA_PARTIAL) { | |
1887 | |
1888 /* | |
1889 * Re-initialize some of the target driver packet state | |
1890 * information. | |
1891 */ | |
1892 vpkt->vpkt_tgt_pkt->pkt_state = 0; | |
1893 vpkt->vpkt_tgt_pkt->pkt_statistics = 0; | |
1894 vpkt->vpkt_tgt_pkt->pkt_reason = 0; | |
1895 | |
1896 /* | |
1897 * Binding a vpkt->vpkt_path for this IO at init_time. | |
1898 * If an IO error happens later, target driver will clear | |
1899 * this vpkt->vpkt_path binding before re-init IO again. | |
1900 */ | |
1901 VHCI_DEBUG(8, (CE_NOTE, NULL, | |
1902 "vhci_scsi_init_pkt: calling v_b_t %p, newpkt %d\n", | |
1903 (void *)vpkt, newpkt)); | |
1904 if (pkt && vpkt->vpkt_hba_pkt) { | |
1905 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
1906 "v_s_i_p calling update_pHCI_pkt resid %ld\n", | |
1907 pkt->pkt_resid)); | |
1908 vhci_update_pHCI_pkt(vpkt, pkt); | |
1909 } | |
1910 if (callback == SLEEP_FUNC) { | |
1911 rval = vhci_bind_transport( | |
1912 ap, vpkt, flags, callback); | |
1913 } else { | |
1914 rval = vhci_bind_transport( | |
1915 ap, vpkt, flags, NULL_FUNC); | |
1916 } | |
1917 VHCI_DEBUG(8, (CE_NOTE, NULL, | |
1918 "vhci_scsi_init_pkt: v_b_t called 0x%p rval 0x%x\n", | |
1919 (void *)vpkt, rval)); | |
1920 if (bp) { | |
1921 if (rval == TRAN_FATAL_ERROR) { | |
1922 /* | |
1923 * No paths available. Could not bind | |
1924 * any pHCI. Setting EFAULT as a way | |
1925 * to indicate no DMA is mapped. | |
1926 */ | |
1927 bioerror(bp, EFAULT); | |
1928 } else { | |
1929 /* | |
1930 * Do not indicate any pHCI errors to | |
1931 * target driver otherwise. | |
1932 */ | |
1933 bioerror(bp, 0); | |
1934 } | |
1935 } | |
1936 if (rval != TRAN_ACCEPT) { | |
1937 VHCI_DEBUG(8, (CE_NOTE, NULL, | |
1938 "vhci_scsi_init_pkt: " | |
1939 "v_b_t failed 0x%p newpkt %x\n", | |
1940 (void *)vpkt, newpkt)); | |
1941 if (newpkt) { | |
1942 scsi_hba_pkt_free(ap, | |
1943 vpkt->vpkt_tgt_pkt); | |
1944 } | |
1945 return (NULL); | |
1946 } | |
1947 ASSERT(vpkt->vpkt_hba_pkt != NULL); | |
1948 ASSERT(vpkt->vpkt_path != NULL); | |
1949 | |
1950 /* Update the resid for the target driver */ | |
1951 vpkt->vpkt_tgt_pkt->pkt_resid = | |
1952 vpkt->vpkt_hba_pkt->pkt_resid; | |
1953 } | |
1954 | |
1955 return (vpkt->vpkt_tgt_pkt); | |
1956 } | |
1957 | |
1958 /* | |
1959 * Function name : vhci_scsi_destroy_pkt | |
1960 * | |
1961 * Return Values : none | |
1962 */ | |
1963 static void | |
1964 vhci_scsi_destroy_pkt(struct scsi_address *ap, struct scsi_pkt *pkt) | |
1965 { | |
1966 struct vhci_pkt *vpkt = (struct vhci_pkt *)pkt->pkt_ha_private; | |
1967 | |
1968 VHCI_DEBUG(8, (CE_NOTE, NULL, | |
1969 "vhci_scsi_destroy_pkt: vpkt 0x%p\n", (void *)vpkt)); | |
1970 | |
1971 vpkt->vpkt_tgt_init_pkt_flags = 0; | |
1972 if (vpkt->vpkt_hba_pkt) { | |
1973 scsi_destroy_pkt(vpkt->vpkt_hba_pkt); | |
1974 vpkt->vpkt_hba_pkt = NULL; | |
1975 } | |
1976 if (vpkt->vpkt_path) { | |
1977 mdi_rele_path(vpkt->vpkt_path); | |
1978 vpkt->vpkt_path = NULL; | |
1979 } | |
1980 | |
1981 ASSERT(vpkt->vpkt_state != VHCI_PKT_ISSUED); | |
1982 scsi_hba_pkt_free(ap, vpkt->vpkt_tgt_pkt); | |
1983 } | |
1984 | |
1985 /* | |
1986 * Function name : vhci_scsi_dmafree() | |
1987 * | |
1988 * Return Values : none | |
1989 */ | |
1990 /*ARGSUSED*/ | |
1991 static void | |
1992 vhci_scsi_dmafree(struct scsi_address *ap, struct scsi_pkt *pkt) | |
1993 { | |
1994 struct vhci_pkt *vpkt = (struct vhci_pkt *)pkt->pkt_ha_private; | |
1995 | |
1996 VHCI_DEBUG(6, (CE_NOTE, NULL, | |
1997 "vhci_scsi_dmafree: vpkt 0x%p\n", (void *)vpkt)); | |
1998 | |
1999 ASSERT(vpkt != NULL); | |
2000 if (vpkt->vpkt_hba_pkt) { | |
2001 scsi_destroy_pkt(vpkt->vpkt_hba_pkt); | |
2002 vpkt->vpkt_hba_pkt = NULL; | |
2003 } | |
2004 if (vpkt->vpkt_path) { | |
2005 mdi_rele_path(vpkt->vpkt_path); | |
2006 vpkt->vpkt_path = NULL; | |
2007 } | |
2008 } | |
2009 | |
2010 /* | |
2011 * Function name : vhci_scsi_sync_pkt() | |
2012 * | |
2013 * Return Values : none | |
2014 */ | |
2015 /*ARGSUSED*/ | |
2016 static void | |
2017 vhci_scsi_sync_pkt(struct scsi_address *ap, struct scsi_pkt *pkt) | |
2018 { | |
2019 struct vhci_pkt *vpkt = (struct vhci_pkt *)pkt->pkt_ha_private; | |
2020 | |
2021 ASSERT(vpkt != NULL); | |
2022 if (vpkt->vpkt_hba_pkt) { | |
2023 scsi_sync_pkt(vpkt->vpkt_hba_pkt); | |
2024 } | |
2025 } | |
2026 | |
2027 /* | |
2028 * routine for reset notification setup, to register or cancel. | |
2029 */ | |
2030 static int | |
2031 vhci_scsi_reset_notify(struct scsi_address *ap, int flag, | |
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6459247 scsi_vhci does not return correct value for dma-max property
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diff
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2032 void (*callback)(caddr_t), caddr_t arg) |
4851 | 2033 { |
2034 struct scsi_vhci *vhci = ADDR2VHCI(ap); | |
2035 return (scsi_hba_reset_notify_setup(ap, flag, callback, arg, | |
2036 &vhci->vhci_mutex, &vhci->vhci_reset_notify_listf)); | |
2037 } | |
2038 | |
2039 static int | |
2040 vhci_scsi_get_name_bus_addr(struct scsi_device *sd, | |
2041 char *name, int len, int bus_addr) | |
2042 { | |
2043 dev_info_t *cdip; | |
2044 char *guid; | |
2045 scsi_vhci_lun_t *vlun; | |
2046 | |
2047 ASSERT(sd != NULL); | |
2048 ASSERT(name != NULL); | |
2049 | |
2050 cdip = sd->sd_dev; | |
2051 | |
2052 ASSERT(cdip != NULL); | |
2053 | |
2054 if (mdi_component_is_client(cdip, NULL) != MDI_SUCCESS) { | |
2055 name[0] = '\0'; | |
2056 return (1); | |
2057 } | |
2058 | |
2059 if (ddi_prop_lookup_string(DDI_DEV_T_ANY, cdip, PROPFLAGS, | |
2060 MDI_CLIENT_GUID_PROP, &guid) != DDI_SUCCESS) { | |
2061 name[0] = '\0'; | |
2062 return (1); | |
2063 } | |
2064 | |
2065 vlun = ADDR2VLUN(&sd->sd_address); | |
2066 if (bus_addr && vlun && vlun->svl_fops_name) { | |
2067 /* report the guid and the name of the failover module */ | |
2068 (void) snprintf(name, len, "g%s %s", guid, vlun->svl_fops_name); | |
2069 } else { | |
2070 /* report the guid */ | |
2071 (void) snprintf(name, len, "g%s", guid); | |
2072 } | |
2073 | |
2074 ddi_prop_free(guid); | |
2075 return (1); | |
2076 } | |
2077 | |
2078 static int | |
2079 vhci_scsi_get_bus_addr(struct scsi_device *sd, char *name, int len) | |
2080 { | |
2081 return (vhci_scsi_get_name_bus_addr(sd, name, len, 1)); | |
2082 } | |
2083 | |
2084 static int | |
2085 vhci_scsi_get_name(struct scsi_device *sd, char *name, int len) | |
2086 { | |
2087 return (vhci_scsi_get_name_bus_addr(sd, name, len, 0)); | |
2088 } | |
2089 | |
2090 /* | |
2091 * Return a pointer to the guid part of the devnm. | |
2092 * devnm format is "nodename@busaddr", busaddr format is "gGUID". | |
2093 */ | |
2094 static char * | |
2095 vhci_devnm_to_guid(char *devnm) | |
2096 { | |
2097 char *cp = devnm; | |
2098 | |
2099 if (devnm == NULL) | |
2100 return (NULL); | |
2101 | |
2102 while (*cp != '\0' && *cp != '@') | |
2103 cp++; | |
2104 if (*cp == '@' && *(cp + 1) == 'g') | |
2105 return (cp + 2); | |
2106 return (NULL); | |
2107 } | |
2108 | |
2109 static int | |
2110 vhci_bind_transport(struct scsi_address *ap, struct vhci_pkt *vpkt, int flags, | |
2111 int (*func)(caddr_t)) | |
2112 { | |
2113 struct scsi_vhci *vhci = ADDR2VHCI(ap); | |
2114 dev_info_t *cdip = ADDR2DIP(ap); | |
2115 mdi_pathinfo_t *pip = NULL; | |
2116 mdi_pathinfo_t *npip = NULL; | |
2117 scsi_vhci_priv_t *svp = NULL; | |
2118 struct scsi_device *psd = NULL; | |
2119 struct scsi_address *address = NULL; | |
2120 struct scsi_pkt *pkt = NULL; | |
2121 int rval = -1; | |
2122 int pgr_sema_held = 0; | |
2123 int held; | |
2124 int mps_flag = MDI_SELECT_ONLINE_PATH; | |
2125 struct scsi_vhci_lun *vlun; | |
2126 time_t tnow; | |
7121
4b91990abccd
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2127 int path_instance = 0; |
4851 | 2128 |
2129 vlun = ADDR2VLUN(ap); | |
2130 ASSERT(vlun != 0); | |
2131 | |
2132 if ((vpkt->vpkt_tgt_pkt->pkt_cdbp[0] == SCMD_PROUT) && | |
2133 (((vpkt->vpkt_tgt_pkt->pkt_cdbp[1] & 0x1f) == | |
2134 VHCI_PROUT_REGISTER) || | |
2135 ((vpkt->vpkt_tgt_pkt->pkt_cdbp[1] & 0x1f) == | |
2136 VHCI_PROUT_R_AND_IGNORE))) { | |
2137 if (!sema_tryp(&vlun->svl_pgr_sema)) | |
2138 return (TRAN_BUSY); | |
2139 pgr_sema_held = 1; | |
2140 if (vlun->svl_first_path != NULL) { | |
2141 rval = mdi_select_path(cdip, NULL, | |
2142 MDI_SELECT_ONLINE_PATH | MDI_SELECT_STANDBY_PATH, | |
2143 NULL, &pip); | |
2144 if ((rval != MDI_SUCCESS) || (pip == NULL)) { | |
2145 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
2146 "vhci_bind_transport: path select fail\n")); | |
2147 } else { | |
2148 npip = pip; | |
2149 do { | |
2150 if (npip == vlun->svl_first_path) { | |
2151 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
2152 "vhci_bind_transport: " | |
2153 "valid first path 0x%p\n", | |
2154 (void *) | |
2155 vlun->svl_first_path)); | |
2156 pip = vlun->svl_first_path; | |
2157 goto bind_path; | |
2158 } | |
2159 pip = npip; | |
2160 rval = mdi_select_path(cdip, NULL, | |
2161 MDI_SELECT_ONLINE_PATH | | |
2162 MDI_SELECT_STANDBY_PATH, | |
2163 pip, &npip); | |
2164 mdi_rele_path(pip); | |
2165 } while ((rval == MDI_SUCCESS) && | |
2166 (npip != NULL)); | |
2167 } | |
2168 } | |
2169 | |
2170 if (vlun->svl_first_path) { | |
2171 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
2172 "vhci_bind_transport: invalid first path 0x%p\n", | |
2173 (void *)vlun->svl_first_path)); | |
2174 vlun->svl_first_path = NULL; | |
2175 } | |
2176 } else if (vpkt->vpkt_tgt_pkt->pkt_cdbp[0] == SCMD_PRIN) { | |
2177 if ((vpkt->vpkt_state & VHCI_PKT_THRU_TASKQ) == 0) { | |
2178 if (!sema_tryp(&vlun->svl_pgr_sema)) | |
2179 return (TRAN_BUSY); | |
2180 } | |
2181 pgr_sema_held = 1; | |
2182 } | |
2183 | |
2184 /* | |
2185 * If the path is already bound for PKT_PARTIAL_DMA case, | |
2186 * try to use the same path. | |
2187 */ | |
2188 if ((vpkt->vpkt_flags & CFLAG_DMA_PARTIAL) && vpkt->vpkt_path) { | |
2189 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
2190 "vhci_bind_transport: PKT_PARTIAL_DMA " | |
2191 "vpkt 0x%p, path 0x%p\n", | |
2192 (void *)vpkt, (void *)vpkt->vpkt_path)); | |
2193 pip = vpkt->vpkt_path; | |
2194 goto bind_path; | |
2195 } | |
2196 | |
2197 /* | |
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|
2198 * Get path_instance. Non-zero with FLAG_PKT_PATH_INSTANCE set |
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2199 * indicates that mdi_select_path should be called to select a |
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2200 * specific instance. |
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2201 * |
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2202 * NB: Condition pkt_path_instance reference on proper allocation. |
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2203 */ |
7121
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6723122 assertion failed: (path_instance == 0) || (path_instance == mdi_pi_get_path_instance(vpkt->vpkt_path
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2204 if ((vpkt->vpkt_tgt_pkt->pkt_flags & FLAG_PKT_PATH_INSTANCE) && |
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|
2205 scsi_pkt_allocated_correctly(vpkt->vpkt_tgt_pkt)) { |
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2206 path_instance = vpkt->vpkt_tgt_pkt->pkt_path_instance; |
7121
4b91990abccd
6723122 assertion failed: (path_instance == 0) || (path_instance == mdi_pi_get_path_instance(vpkt->vpkt_path
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|
2207 } |
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2208 |
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2209 /* |
4851 | 2210 * If reservation is active bind the transport directly to the pip |
2211 * with the reservation. | |
2212 */ | |
2213 if (vpkt->vpkt_hba_pkt == NULL) { | |
2214 if (vlun->svl_flags & VLUN_RESERVE_ACTIVE_FLG) { | |
2215 if (MDI_PI_IS_ONLINE(vlun->svl_resrv_pip)) { | |
2216 pip = vlun->svl_resrv_pip; | |
2217 mdi_hold_path(pip); | |
2218 vlun->svl_waiting_for_activepath = 0; | |
2219 rval = MDI_SUCCESS; | |
2220 goto bind_path; | |
2221 } else { | |
2222 if (pgr_sema_held) { | |
2223 sema_v(&vlun->svl_pgr_sema); | |
2224 } | |
2225 return (TRAN_BUSY); | |
2226 } | |
2227 } | |
2228 try_again: | |
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|
2229 rval = mdi_select_path(cdip, vpkt->vpkt_tgt_init_bp, |
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|
2230 path_instance ? MDI_SELECT_PATH_INSTANCE : 0, |
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2231 (void *)(intptr_t)path_instance, &pip); |
4851 | 2232 if (rval == MDI_BUSY) { |
2233 if (pgr_sema_held) { | |
2234 sema_v(&vlun->svl_pgr_sema); | |
2235 } | |
2236 return (TRAN_BUSY); | |
2237 } else if (rval == MDI_DEVI_ONLINING) { | |
2238 /* | |
2239 * if we are here then we are in the midst of | |
2240 * an attach/probe of the client device. | |
2241 * We attempt to bind to ONLINE path if available, | |
2242 * else it is OK to bind to a STANDBY path (instead | |
2243 * of triggering a failover) because IO associated | |
2244 * with attach/probe (eg. INQUIRY, block 0 read) | |
2245 * are completed by targets even on passive paths | |
2246 * If no ONLINE paths available, it is important | |
2247 * to set svl_waiting_for_activepath for two | |
2248 * reasons: (1) avoid sense analysis in the | |
2249 * "external failure detection" codepath in | |
2250 * vhci_intr(). Failure to do so will result in | |
2251 * infinite loop (unless an ONLINE path becomes | |
2252 * available at some point) (2) avoid | |
2253 * unnecessary failover (see "---Waiting For Active | |
2254 * Path---" comment below). | |
2255 */ | |
2256 VHCI_DEBUG(1, (CE_NOTE, NULL, "!%p in onlining " | |
2257 "state\n", (void *)cdip)); | |
2258 pip = NULL; | |
2259 rval = mdi_select_path(cdip, vpkt->vpkt_tgt_init_bp, | |
2260 mps_flag, NULL, &pip); | |
2261 if ((rval != MDI_SUCCESS) || (pip == NULL)) { | |
2262 if (vlun->svl_waiting_for_activepath == 0) { | |
2263 vlun->svl_waiting_for_activepath = 1; | |
2264 vlun->svl_wfa_time = ddi_get_time(); | |
2265 } | |
2266 mps_flag |= MDI_SELECT_STANDBY_PATH; | |
2267 rval = mdi_select_path(cdip, | |
2268 vpkt->vpkt_tgt_init_bp, | |
2269 mps_flag, NULL, &pip); | |
2270 if ((rval != MDI_SUCCESS) || (pip == NULL)) { | |
2271 if (pgr_sema_held) { | |
2272 sema_v(&vlun->svl_pgr_sema); | |
2273 } | |
2274 return (TRAN_FATAL_ERROR); | |
2275 } | |
2276 goto bind_path; | |
2277 } | |
2278 } else if (rval == MDI_FAILURE) { | |
2279 if (pgr_sema_held) { | |
2280 sema_v(&vlun->svl_pgr_sema); | |
2281 } | |
2282 return (TRAN_FATAL_ERROR); | |
2283 } | |
2284 | |
2285 if ((pip == NULL) || (rval == MDI_NOPATH)) { | |
2286 while (vlun->svl_waiting_for_activepath) { | |
2287 /* | |
2288 * ---Waiting For Active Path--- | |
2289 * This device was discovered across a | |
2290 * passive path; lets wait for a little | |
2291 * bit, hopefully an active path will | |
2292 * show up obviating the need for a | |
2293 * failover | |
2294 */ | |
2295 tnow = ddi_get_time(); | |
2296 if (tnow - vlun->svl_wfa_time >= 60) { | |
2297 vlun->svl_waiting_for_activepath = 0; | |
2298 } else { | |
2299 drv_usecwait(1000); | |
2300 if (vlun->svl_waiting_for_activepath | |
2301 == 0) { | |
2302 /* | |
2303 * an active path has come | |
2304 * online! | |
2305 */ | |
2306 goto try_again; | |
2307 } | |
2308 } | |
2309 } | |
2310 VHCI_HOLD_LUN(vlun, VH_NOSLEEP, held); | |
2311 if (!held) { | |
2312 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
2313 "!Lun not held\n")); | |
2314 if (pgr_sema_held) { | |
2315 sema_v(&vlun->svl_pgr_sema); | |
2316 } | |
2317 return (TRAN_BUSY); | |
2318 } | |
2319 /* | |
2320 * now that the LUN is stable, one last check | |
2321 * to make sure no other changes sneaked in | |
2322 * (like a path coming online or a | |
2323 * failover initiated by another thread) | |
2324 */ | |
2325 pip = NULL; | |
2326 rval = mdi_select_path(cdip, vpkt->vpkt_tgt_init_bp, | |
2327 0, NULL, &pip); | |
2328 if (pip != NULL) { | |
2329 VHCI_RELEASE_LUN(vlun); | |
2330 vlun->svl_waiting_for_activepath = 0; | |
2331 goto bind_path; | |
2332 } | |
2333 | |
2334 /* | |
2335 * Check if there is an ONLINE path OR a STANDBY path | |
2336 * available. If none is available, do not attempt | |
2337 * to do a failover, just return a fatal error at this | |
2338 * point. | |
2339 */ | |
2340 npip = NULL; | |
2341 rval = mdi_select_path(cdip, NULL, | |
2342 (MDI_SELECT_ONLINE_PATH | MDI_SELECT_STANDBY_PATH), | |
2343 NULL, &npip); | |
2344 if ((npip == NULL) || (rval != MDI_SUCCESS)) { | |
2345 /* | |
2346 * No paths available, jus return FATAL error. | |
2347 */ | |
2348 VHCI_RELEASE_LUN(vlun); | |
2349 if (pgr_sema_held) { | |
2350 sema_v(&vlun->svl_pgr_sema); | |
2351 } | |
2352 return (TRAN_FATAL_ERROR); | |
2353 } | |
2354 mdi_rele_path(npip); | |
2355 VHCI_DEBUG(1, (CE_NOTE, NULL, "!invoking " | |
2356 "mdi_failover\n")); | |
2357 rval = mdi_failover(vhci->vhci_dip, cdip, | |
2358 MDI_FAILOVER_ASYNC); | |
2359 if (rval == MDI_FAILURE) { | |
2360 VHCI_RELEASE_LUN(vlun); | |
2361 if (pgr_sema_held) { | |
2362 sema_v(&vlun->svl_pgr_sema); | |
2363 } | |
2364 return (TRAN_FATAL_ERROR); | |
2365 } else if (rval == MDI_BUSY) { | |
2366 VHCI_RELEASE_LUN(vlun); | |
2367 if (pgr_sema_held) { | |
2368 sema_v(&vlun->svl_pgr_sema); | |
2369 } | |
2370 return (TRAN_BUSY); | |
2371 } else { | |
2372 if (pgr_sema_held) { | |
2373 sema_v(&vlun->svl_pgr_sema); | |
2374 } | |
2375 return (TRAN_BUSY); | |
2376 } | |
2377 } | |
2378 vlun->svl_waiting_for_activepath = 0; | |
2379 bind_path: | |
2380 vpkt->vpkt_path = pip; | |
2381 svp = (scsi_vhci_priv_t *)mdi_pi_get_vhci_private(pip); | |
2382 ASSERT(svp != NULL); | |
2383 | |
2384 psd = svp->svp_psd; | |
2385 ASSERT(psd != NULL); | |
2386 address = &psd->sd_address; | |
2387 } else { | |
2388 pkt = vpkt->vpkt_hba_pkt; | |
2389 address = &pkt->pkt_address; | |
2390 } | |
2391 | |
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2392 /* Verify match of specified path_instance and selected path_instance */ |
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|
2393 ASSERT((path_instance == 0) || |
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|
2394 (path_instance == mdi_pi_get_path_instance(vpkt->vpkt_path))); |
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|
2395 |
4851 | 2396 /* |
2397 * For PKT_PARTIAL_DMA case, call pHCI's scsi_init_pkt whenever | |
2398 * target driver calls vhci_scsi_init_pkt. | |
2399 */ | |
2400 if ((vpkt->vpkt_flags & CFLAG_DMA_PARTIAL) && | |
2401 vpkt->vpkt_path && vpkt->vpkt_hba_pkt) { | |
2402 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
2403 "vhci_bind_transport: PKT_PARTIAL_DMA " | |
2404 "vpkt 0x%p, path 0x%p hba_pkt 0x%p\n", | |
2405 (void *)vpkt, (void *)vpkt->vpkt_path, (void *)pkt)); | |
2406 pkt = vpkt->vpkt_hba_pkt; | |
2407 address = &pkt->pkt_address; | |
2408 } | |
2409 | |
2410 if (pkt == NULL || (vpkt->vpkt_flags & CFLAG_DMA_PARTIAL)) { | |
2411 pkt = scsi_init_pkt(address, pkt, | |
2412 vpkt->vpkt_tgt_init_bp, vpkt->vpkt_tgt_init_cdblen, | |
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|
2413 vpkt->vpkt_tgt_init_scblen, 0, flags, func, NULL); |
4851 | 2414 |
2415 if (pkt == NULL) { | |
2416 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
2417 "!bind transport: 0x%p 0x%p 0x%p\n", | |
2418 (void *)vhci, (void *)psd, (void *)vpkt)); | |
2419 if ((vpkt->vpkt_hba_pkt == NULL) && vpkt->vpkt_path) { | |
2420 MDI_PI_ERRSTAT(vpkt->vpkt_path, | |
2421 MDI_PI_TRANSERR); | |
2422 mdi_rele_path(vpkt->vpkt_path); | |
2423 vpkt->vpkt_path = NULL; | |
2424 } | |
2425 if (pgr_sema_held) { | |
2426 sema_v(&vlun->svl_pgr_sema); | |
2427 } | |
2428 /* | |
2429 * Looks like a fatal error. | |
2430 * May be device disappeared underneath. | |
2431 * Give another chance to target driver for a retry to | |
2432 * get another path. | |
2433 */ | |
2434 return (TRAN_BUSY); | |
2435 } | |
2436 } | |
2437 | |
2438 pkt->pkt_private = vpkt; | |
2439 vpkt->vpkt_hba_pkt = pkt; | |
2440 return (TRAN_ACCEPT); | |
2441 } | |
2442 | |
2443 | |
2444 /*PRINTFLIKE3*/ | |
2445 void | |
2446 vhci_log(int level, dev_info_t *dip, const char *fmt, ...) | |
2447 { | |
2448 char buf[256]; | |
2449 va_list ap; | |
2450 | |
2451 va_start(ap, fmt); | |
2452 (void) vsprintf(buf, fmt, ap); | |
2453 va_end(ap); | |
2454 | |
2455 scsi_log(dip, "scsi_vhci", level, buf); | |
2456 } | |
2457 | |
2458 /* do a PGR out with the information we've saved away */ | |
2459 static int | |
2460 vhci_do_prout(scsi_vhci_priv_t *svp) | |
2461 { | |
2462 | |
2463 struct scsi_pkt *new_pkt; | |
2464 struct buf *bp; | |
6941
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diff
changeset
|
2465 scsi_vhci_lun_t *vlun = svp->svp_svl; |
4851 | 2466 int rval, retry, nr_retry, ua_retry; |
2467 struct scsi_extended_sense *sns; | |
2468 | |
2469 bp = getrbuf(KM_SLEEP); | |
2470 bp->b_flags = B_WRITE; | |
2471 bp->b_resid = 0; | |
6941
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6459247 scsi_vhci does not return correct value for dma-max property
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6777
diff
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|
2472 bp->b_un.b_addr = (caddr_t)&vlun->svl_prout; |
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6459247 scsi_vhci does not return correct value for dma-max property
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|
2473 bp->b_bcount = vlun->svl_bcount; |
4851 | 2474 |
2475 VHCI_INCR_PATH_CMDCOUNT(svp); | |
2476 | |
2477 new_pkt = scsi_init_pkt(&svp->svp_psd->sd_address, NULL, bp, | |
2478 CDB_GROUP1, sizeof (struct scsi_arq_status), 0, 0, | |
2479 SLEEP_FUNC, NULL); | |
2480 if (new_pkt == NULL) { | |
2481 VHCI_DECR_PATH_CMDCOUNT(svp); | |
2482 freerbuf(bp); | |
2483 cmn_err(CE_WARN, "!vhci_do_prout: scsi_init_pkt failed"); | |
2484 return (0); | |
2485 } | |
2486 mutex_enter(&vlun->svl_mutex); | |
2487 bp->b_un.b_addr = (caddr_t)&vlun->svl_prout; | |
2488 bp->b_bcount = vlun->svl_bcount; | |
2489 bcopy(vlun->svl_cdb, new_pkt->pkt_cdbp, | |
2490 sizeof (vlun->svl_cdb)); | |
2491 new_pkt->pkt_time = vlun->svl_time; | |
2492 mutex_exit(&vlun->svl_mutex); | |
2493 new_pkt->pkt_flags = FLAG_NOINTR; | |
2494 | |
2495 ua_retry = nr_retry = retry = 0; | |
2496 again: | |
2497 rval = vhci_do_scsi_cmd(new_pkt); | |
2498 if (rval != 1) { | |
2499 if ((new_pkt->pkt_reason == CMD_CMPLT) && | |
2500 (SCBP_C(new_pkt) == STATUS_CHECK) && | |
2501 (new_pkt->pkt_state & STATE_ARQ_DONE)) { | |
2502 sns = &(((struct scsi_arq_status *)(uintptr_t) | |
2503 (new_pkt->pkt_scbp))->sts_sensedata); | |
2504 if ((sns->es_key == KEY_UNIT_ATTENTION) || | |
2505 (sns->es_key == KEY_NOT_READY)) { | |
2506 int max_retry; | |
2507 struct scsi_failover_ops *fops; | |
2508 fops = vlun->svl_fops; | |
6941
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6777
diff
changeset
|
2509 rval = fops->sfo_analyze_sense(svp->svp_psd, |
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6459247 scsi_vhci does not return correct value for dma-max property
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diff
changeset
|
2510 sns, vlun->svl_fops_ctpriv); |
4851 | 2511 if (rval == SCSI_SENSE_NOT_READY) { |
2512 max_retry = vhci_prout_not_ready_retry; | |
2513 retry = nr_retry++; | |
2514 delay(1*drv_usectohz(1000000)); | |
2515 } else { | |
2516 /* chk for state change and update */ | |
2517 if (rval == SCSI_SENSE_STATE_CHANGED) { | |
2518 int held; | |
2519 VHCI_HOLD_LUN(vlun, | |
2520 VH_NOSLEEP, held); | |
2521 if (!held) { | |
2522 rval = TRAN_BUSY; | |
2523 } else { | |
2524 /* chk for alua first */ | |
2525 vhci_update_pathstates( | |
2526 (void *)vlun); | |
2527 } | |
2528 } | |
2529 retry = ua_retry++; | |
2530 max_retry = VHCI_MAX_PGR_RETRIES; | |
2531 } | |
2532 if (retry < max_retry) { | |
2533 VHCI_DEBUG(4, (CE_WARN, NULL, | |
2534 "!vhci_do_prout retry 0x%x " | |
2535 "(0x%x 0x%x 0x%x)", | |
2536 SCBP_C(new_pkt), | |
2537 new_pkt->pkt_cdbp[0], | |
2538 new_pkt->pkt_cdbp[1], | |
2539 new_pkt->pkt_cdbp[2])); | |
2540 goto again; | |
2541 } | |
2542 rval = 0; | |
2543 VHCI_DEBUG(4, (CE_WARN, NULL, | |
2544 "!vhci_do_prout 0x%x " | |
2545 "(0x%x 0x%x 0x%x)", | |
2546 SCBP_C(new_pkt), | |
2547 new_pkt->pkt_cdbp[0], | |
2548 new_pkt->pkt_cdbp[1], | |
2549 new_pkt->pkt_cdbp[2])); | |
2550 } else if (sns->es_key == KEY_ILLEGAL_REQUEST) | |
2551 rval = VHCI_PGR_ILLEGALOP; | |
2552 } | |
2553 } else { | |
2554 rval = 1; | |
2555 } | |
2556 scsi_destroy_pkt(new_pkt); | |
2557 VHCI_DECR_PATH_CMDCOUNT(svp); | |
2558 freerbuf(bp); | |
2559 return (rval); | |
2560 } | |
2561 | |
2562 static void | |
2563 vhci_run_cmd(void *arg) | |
2564 { | |
2565 struct scsi_pkt *pkt = (struct scsi_pkt *)arg; | |
2566 struct scsi_pkt *tpkt; | |
2567 scsi_vhci_priv_t *svp; | |
2568 mdi_pathinfo_t *pip, *npip; | |
2569 scsi_vhci_lun_t *vlun; | |
2570 dev_info_t *cdip; | |
2571 scsi_vhci_priv_t *nsvp; | |
2572 int fail = 0; | |
2573 int rval; | |
2574 struct vhci_pkt *vpkt; | |
2575 uchar_t cdb_1; | |
2576 vhci_prout_t *prout; | |
2577 | |
2578 vpkt = (struct vhci_pkt *)pkt->pkt_private; | |
2579 tpkt = vpkt->vpkt_tgt_pkt; | |
2580 pip = vpkt->vpkt_path; | |
2581 svp = (scsi_vhci_priv_t *)mdi_pi_get_vhci_private(pip); | |
2582 if (svp == NULL) { | |
2583 tpkt->pkt_reason = CMD_TRAN_ERR; | |
2584 tpkt->pkt_statistics = STAT_ABORTED; | |
2585 goto done; | |
2586 } | |
2587 vlun = svp->svp_svl; | |
2588 prout = &vlun->svl_prout; | |
2589 if (SCBP_C(pkt) != STATUS_GOOD) | |
2590 fail++; | |
2591 cdip = vlun->svl_dip; | |
2592 pip = npip = NULL; | |
2593 rval = mdi_select_path(cdip, NULL, | |
2594 MDI_SELECT_ONLINE_PATH|MDI_SELECT_STANDBY_PATH, NULL, &npip); | |
2595 if ((rval != MDI_SUCCESS) || (npip == NULL)) { | |
2596 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
2597 "vhci_run_cmd: no path! 0x%p\n", (void *)svp)); | |
2598 tpkt->pkt_reason = CMD_TRAN_ERR; | |
2599 tpkt->pkt_statistics = STAT_ABORTED; | |
2600 goto done; | |
2601 } | |
2602 | |
2603 cdb_1 = vlun->svl_cdb[1]; | |
2604 vlun->svl_cdb[1] &= 0xe0; | |
2605 vlun->svl_cdb[1] |= VHCI_PROUT_R_AND_IGNORE; | |
2606 | |
2607 do { | |
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|
2608 nsvp = (scsi_vhci_priv_t *)mdi_pi_get_vhci_private(npip); |
4851 | 2609 if (nsvp == NULL) { |
2610 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
2611 "vhci_run_cmd: no " | |
2612 "client priv! 0x%p offlined?\n", | |
2613 (void *)npip)); | |
2614 goto next_path; | |
2615 } | |
2616 if (vlun->svl_first_path == npip) { | |
2617 goto next_path; | |
2618 } else { | |
2619 if (vhci_do_prout(nsvp) != 1) | |
2620 fail++; | |
2621 } | |
2622 next_path: | |
2623 pip = npip; | |
2624 rval = mdi_select_path(cdip, NULL, | |
2625 MDI_SELECT_ONLINE_PATH|MDI_SELECT_STANDBY_PATH, | |
2626 pip, &npip); | |
2627 mdi_rele_path(pip); | |
2628 } while ((rval == MDI_SUCCESS) && (npip != NULL)); | |
2629 | |
2630 vlun->svl_cdb[1] = cdb_1; | |
2631 | |
2632 if (fail) { | |
2633 VHCI_DEBUG(4, (CE_WARN, NULL, "%s%d: key registration failed, " | |
2634 "couldn't be replicated on all paths", | |
2635 ddi_driver_name(cdip), ddi_get_instance(cdip))); | |
2636 vhci_print_prout_keys(vlun, "vhci_run_cmd: "); | |
2637 | |
2638 if (SCBP_C(pkt) != STATUS_GOOD) { | |
2639 tpkt->pkt_reason = CMD_TRAN_ERR; | |
2640 tpkt->pkt_statistics = STAT_ABORTED; | |
2641 } | |
2642 } else { | |
2643 vlun->svl_pgr_active = 1; | |
2644 vhci_print_prout_keys(vlun, "vhci_run_cmd: before bcopy:"); | |
2645 | |
2646 bcopy((const void *)prout->service_key, | |
2647 (void *)prout->active_service_key, MHIOC_RESV_KEY_SIZE); | |
2648 bcopy((const void *)prout->res_key, | |
2649 (void *)prout->active_res_key, MHIOC_RESV_KEY_SIZE); | |
2650 | |
2651 vhci_print_prout_keys(vlun, "vhci_run_cmd: after bcopy:"); | |
2652 } | |
2653 done: | |
2654 if (SCBP_C(pkt) == STATUS_GOOD) | |
2655 vlun->svl_first_path = NULL; | |
2656 | |
2657 if (svp) | |
2658 VHCI_DECR_PATH_CMDCOUNT(svp); | |
2659 | |
2660 if ((vpkt->vpkt_flags & CFLAG_DMA_PARTIAL) == 0) { | |
2661 scsi_destroy_pkt(pkt); | |
2662 vpkt->vpkt_hba_pkt = NULL; | |
2663 if (vpkt->vpkt_path) { | |
2664 mdi_rele_path(vpkt->vpkt_path); | |
2665 vpkt->vpkt_path = NULL; | |
2666 } | |
2667 } | |
2668 | |
2669 sema_v(&vlun->svl_pgr_sema); | |
2670 /* | |
2671 * The PROUT commands are not included in the automatic retry | |
2672 * mechanism, therefore, vpkt_org_vpkt should never be set here. | |
2673 */ | |
2674 ASSERT(vpkt->vpkt_org_vpkt == NULL); | |
2675 if (tpkt->pkt_comp) | |
2676 (*tpkt->pkt_comp)(tpkt); | |
2677 | |
2678 } | |
2679 | |
2680 /* | |
2681 * Get the keys registered with this target. Since we will have | |
2682 * registered the same key with multiple initiators, strip out | |
2683 * any duplicate keys. | |
2684 * | |
2685 * The pointers which will be used to filter the registered keys from | |
2686 * the device will be stored in filter_prin and filter_pkt. If the | |
2687 * allocation length of the buffer was sufficient for the number of | |
2688 * parameter data bytes available to be returned by the device then the | |
2689 * key filtering will use the keylist returned from the original | |
2690 * request. If the allocation length of the buffer was not sufficient, | |
2691 * then the filtering will use the keylist returned from the request | |
2692 * that is resent below. | |
2693 * | |
2694 * If the device returns an additional length field that is greater than | |
2695 * the allocation length of the buffer, then allocate a new buffer which | |
2696 * can accommodate the number of parameter data bytes available to be | |
2697 * returned. Resend the scsi PRIN command, filter out the duplicate | |
2698 * keys and return as many of the unique keys found that was originally | |
2699 * requested and set the additional length field equal to the data bytes | |
2700 * of unique reservation keys available to be returned. | |
2701 * | |
2702 * If the device returns an additional length field that is less than or | |
2703 * equal to the allocation length of the buffer, then all the available | |
2704 * keys registered were returned by the device. Filter out the | |
2705 * duplicate keys and return all of the unique keys found and set the | |
2706 * additional length field equal to the data bytes of the reservation | |
2707 * keys to be returned. | |
2708 */ | |
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7191
diff
changeset
|
2709 |
0259de900d45
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7191
diff
changeset
|
2710 #define VHCI_PRIN_HEADER_SZ (sizeof (prin->length) + sizeof (prin->generation)) |
0259de900d45
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7191
diff
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|
2711 |
4851 | 2712 static int |
7201
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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7191
diff
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|
2713 vhci_do_prin(struct vhci_pkt **intr_vpkt) |
4851 | 2714 { |
7201
0259de900d45
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7191
diff
changeset
|
2715 scsi_vhci_priv_t *svp; |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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|
2716 struct vhci_pkt *vpkt = *intr_vpkt; |
4851 | 2717 vhci_prin_readkeys_t *prin; |
7201
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6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2718 scsi_vhci_lun_t *vlun; |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2719 struct scsi_vhci *vhci = ADDR2VHCI(&vpkt->vpkt_tgt_pkt->pkt_address); |
4851 | 2720 |
2721 struct buf *new_bp = NULL; | |
2722 struct scsi_pkt *new_pkt = NULL; | |
2723 struct vhci_pkt *new_vpkt = NULL; | |
7201
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6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2724 uint32_t needed_length; |
4851 | 2725 int rval = VHCI_CMD_CMPLT; |
2726 uint32_t prin_length = 0; | |
2727 uint32_t svl_prin_length = 0; | |
2728 | |
7201
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6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2729 ASSERT(vpkt->vpkt_path); |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2730 svp = mdi_pi_get_vhci_private(vpkt->vpkt_path); |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2731 ASSERT(svp); |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2732 vlun = svp->svp_svl; |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2733 ASSERT(vlun); |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2734 |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2735 /* |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2736 * If the caller only asked for an amount of data that would not |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2737 * be enough to include any key data it is likely that they will |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2738 * send the next command with a buffer size based on the information |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2739 * from this header. Doing recovery on this would be a duplication |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2740 * of efforts. |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2741 */ |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2742 if (vpkt->vpkt_tgt_init_bp->b_bcount <= VHCI_PRIN_HEADER_SZ) { |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2743 rval = VHCI_CMD_CMPLT; |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2744 goto exit; |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2745 } |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2746 |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2747 if (vpkt->vpkt_org_vpkt == NULL) { |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2748 /* |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2749 * Can fail as sleep is not allowed. |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2750 */ |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2751 prin = (vhci_prin_readkeys_t *) |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2752 bp_mapin_common(vpkt->vpkt_tgt_init_bp, VM_NOSLEEP); |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2753 } else { |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2754 /* |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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7191
diff
changeset
|
2755 * The retry buf doesn't need to be mapped in. |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
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diff
changeset
|
2756 */ |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2757 prin = (vhci_prin_readkeys_t *) |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2758 vpkt->vpkt_tgt_init_bp->b_un.b_daddr; |
4851 | 2759 } |
2760 | |
2761 if (prin == NULL) { | |
2762 VHCI_DEBUG(5, (CE_WARN, NULL, | |
2763 "vhci_do_prin: bp_mapin_common failed.")); | |
2764 rval = VHCI_CMD_ERROR; | |
7201
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
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diff
changeset
|
2765 goto fail; |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2766 } |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2767 |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2768 prin_length = BE_32(prin->length); |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2769 |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2770 /* |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2771 * According to SPC-3r22, sec 4.3.4.6: "If the amount of |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2772 * information to be transferred exceeds the maximum value |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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7191
diff
changeset
|
2773 * that the ALLOCATION LENGTH field is capable of specifying, |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2774 * the device server shall...terminate the command with CHECK |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
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diff
changeset
|
2775 * CONDITION status". The ALLOCATION LENGTH field of the |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
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7191
diff
changeset
|
2776 * PERSISTENT RESERVE IN command is 2 bytes. We should never |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2777 * get here with an ADDITIONAL LENGTH greater than 0xFFFF |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2778 * so if we do, then it is an error! |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
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diff
changeset
|
2779 */ |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
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diff
changeset
|
2780 |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2781 |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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parents:
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changeset
|
2782 if ((prin_length + VHCI_PRIN_HEADER_SZ) > 0xFFFF) { |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
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diff
changeset
|
2783 VHCI_DEBUG(5, (CE_NOTE, NULL, |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
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diff
changeset
|
2784 "vhci_do_prin: Device returned invalid " |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2785 "length 0x%x\n", prin_length)); |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2786 rval = VHCI_CMD_ERROR; |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2787 goto fail; |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
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7191
diff
changeset
|
2788 } |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2789 needed_length = prin_length + VHCI_PRIN_HEADER_SZ; |
4851 | 2790 |
2791 /* | |
2792 * If prin->length is greater than the byte count allocated in the | |
2793 * original buffer, then resend the request with enough buffer | |
2794 * allocated to get all of the available registered keys. | |
2795 */ | |
7201
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2796 if ((vpkt->vpkt_tgt_init_bp->b_bcount < needed_length) && |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2797 (vpkt->vpkt_org_vpkt == NULL)) { |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2798 |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2799 new_pkt = vhci_create_retry_pkt(vpkt); |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2800 if (new_pkt == NULL) { |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2801 rval = VHCI_CMD_ERROR; |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2802 goto fail; |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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|
2803 } |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2804 new_vpkt = TGTPKT2VHCIPKT(new_pkt); |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2805 |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2806 /* |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2807 * This is the buf with buffer pointer |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2808 * where the prin readkeys will be |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2809 * returned from the device |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2810 */ |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2811 new_bp = scsi_alloc_consistent_buf(&svp->svp_psd->sd_address, |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2812 NULL, needed_length, B_READ, NULL_FUNC, NULL); |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2813 if ((new_bp == NULL) || (new_bp->b_un.b_addr == NULL)) { |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2814 if (new_bp) { |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2815 scsi_free_consistent_buf(new_bp); |
4851 | 2816 } |
7201
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2817 vhci_scsi_destroy_pkt(&new_pkt->pkt_address, new_pkt); |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2818 rval = VHCI_CMD_ERROR; |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2819 goto fail; |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
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|
2820 } |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2821 new_bp->b_bcount = needed_length; |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2822 new_pkt->pkt_cdbp[7] = (uchar_t)(needed_length >> 8); |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2823 new_pkt->pkt_cdbp[8] = (uchar_t)needed_length; |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2824 |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2825 rval = VHCI_CMD_RETRY; |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2826 |
0259de900d45
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|
2827 new_vpkt->vpkt_tgt_init_bp = new_bp; |
4851 | 2828 } |
2829 | |
2830 if (rval == VHCI_CMD_RETRY) { | |
7201
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2831 |
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6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2832 /* |
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6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2833 * There were more keys then the original request asked for. |
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6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2834 */ |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2835 mdi_pathinfo_t *path_holder = vpkt->vpkt_path; |
4851 | 2836 |
2837 /* | |
2838 * Release the old path because it does not matter which path | |
2839 * this command is sent down. This allows the normal bind | |
2840 * transport mechanism to be used. | |
2841 */ | |
6941
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6459247 scsi_vhci does not return correct value for dma-max property
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|
2842 if (vpkt->vpkt_path != NULL) { |
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|
2843 mdi_rele_path(vpkt->vpkt_path); |
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|
2844 vpkt->vpkt_path = NULL; |
4851 | 2845 } |
2846 | |
2847 /* | |
2848 * Dispatch the retry command | |
2849 */ | |
2850 if (taskq_dispatch(vhci->vhci_taskq, vhci_dispatch_scsi_start, | |
2851 (void *) new_vpkt, KM_NOSLEEP) == NULL) { | |
7201
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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7191
diff
changeset
|
2852 if (path_holder) { |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2853 vpkt->vpkt_path = path_holder; |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2854 mdi_hold_path(path_holder); |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2855 } |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2856 scsi_free_consistent_buf(new_bp); |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
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changeset
|
2857 vhci_scsi_destroy_pkt(&new_pkt->pkt_address, new_pkt); |
4851 | 2858 rval = VHCI_CMD_ERROR; |
7201
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2859 goto fail; |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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|
2860 } |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2861 |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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|
2862 /* |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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7191
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changeset
|
2863 * If we return VHCI_CMD_RETRY, that means the caller |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
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changeset
|
2864 * is going to bail and wait for the reissued command |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
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changeset
|
2865 * to complete. In that case, we need to decrement |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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7191
diff
changeset
|
2866 * the path command count right now. In any other |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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7191
diff
changeset
|
2867 * case, it'll be decremented by the caller. |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
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7191
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changeset
|
2868 */ |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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7191
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changeset
|
2869 VHCI_DECR_PATH_CMDCOUNT(svp); |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
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changeset
|
2870 goto exit; |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
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changeset
|
2871 |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2872 } |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2873 |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
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7191
diff
changeset
|
2874 if (rval == VHCI_CMD_CMPLT) { |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
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changeset
|
2875 /* |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
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7191
diff
changeset
|
2876 * The original request got all of the keys or the recovery |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
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changeset
|
2877 * packet returns. |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
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diff
changeset
|
2878 */ |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2879 int new; |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2880 int old; |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2881 int num_keys = prin_length / MHIOC_RESV_KEY_SIZE; |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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7191
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changeset
|
2882 |
4851 | 2883 VHCI_DEBUG(4, (CE_NOTE, NULL, "vhci_do_prin: %d keys read\n", |
7201
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6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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7191
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changeset
|
2884 num_keys)); |
4851 | 2885 |
2886 #ifdef DEBUG | |
2887 VHCI_DEBUG(5, (CE_NOTE, NULL, "vhci_do_prin: from storage\n")); | |
2888 if (vhci_debug == 5) | |
7201
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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7191
diff
changeset
|
2889 vhci_print_prin_keys(prin, num_keys); |
4851 | 2890 VHCI_DEBUG(5, (CE_NOTE, NULL, |
2891 "vhci_do_prin: MPxIO old keys:\n")); | |
2892 if (vhci_debug == 5) | |
7201
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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7191
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changeset
|
2893 vhci_print_prin_keys(&vlun->svl_prin, num_keys); |
4851 | 2894 #endif |
2895 | |
2896 /* | |
2897 * Filter out all duplicate keys returned from the device | |
2898 * We know that we use a different key for every host, so we | |
2899 * can simply strip out duplicates. Otherwise we would need to | |
2900 * do more bookkeeping to figure out which keys to strip out. | |
2901 */ | |
2902 | |
2903 new = 0; | |
2904 | |
7201
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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7191
diff
changeset
|
2905 /* |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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7191
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changeset
|
2906 * If we got at least 1 key copy it. |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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7191
diff
changeset
|
2907 */ |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2908 if (num_keys > 0) { |
4851 | 2909 vlun->svl_prin.keylist[0] = prin->keylist[0]; |
2910 new++; | |
2911 } | |
2912 | |
7201
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6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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7191
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|
2913 /* |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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7191
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changeset
|
2914 * find next unique key. |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2915 */ |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2916 for (old = 1; old < num_keys; old++) { |
4851 | 2917 int j; |
2918 int match = 0; | |
7201
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2919 |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2920 if (new >= VHCI_NUM_RESV_KEYS) |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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7191
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changeset
|
2921 break; |
4851 | 2922 for (j = 0; j < new; j++) { |
2923 if (bcmp(&prin->keylist[old], | |
2924 &vlun->svl_prin.keylist[j], | |
2925 sizeof (mhioc_resv_key_t)) == 0) { | |
2926 match = 1; | |
2927 break; | |
2928 } | |
2929 } | |
2930 if (!match) { | |
2931 vlun->svl_prin.keylist[new] = | |
2932 prin->keylist[old]; | |
2933 new++; | |
2934 } | |
2935 } | |
2936 | |
7201
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2937 /* Stored Big Endian */ |
4851 | 2938 vlun->svl_prin.generation = prin->generation; |
7201
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2939 svl_prin_length = new * sizeof (mhioc_resv_key_t); |
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2940 /* Stored Big Endian */ |
4851 | 2941 vlun->svl_prin.length = BE_32(svl_prin_length); |
7201
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2942 svl_prin_length += VHCI_PRIN_HEADER_SZ; |
4851 | 2943 |
2944 /* | |
2945 * If we arrived at this point after issuing a retry, make sure | |
2946 * that we put everything back the way it originally was so | |
2947 * that the target driver can complete the command correctly. | |
2948 */ | |
6941
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changeset
|
2949 if (vpkt->vpkt_org_vpkt != NULL) { |
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6459247 scsi_vhci does not return correct value for dma-max property
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changeset
|
2950 new_bp = vpkt->vpkt_tgt_init_bp; |
4851 | 2951 |
2952 scsi_free_consistent_buf(new_bp); | |
2953 | |
6941
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changeset
|
2954 vpkt = vhci_sync_retry_pkt(vpkt); |
7201
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2955 *intr_vpkt = vpkt; |
4851 | 2956 |
2957 /* | |
2958 * Make sure the original buffer is mapped into kernel | |
2959 * space before we try to copy the filtered keys into | |
2960 * it. | |
2961 */ | |
2962 prin = (vhci_prin_readkeys_t *)bp_mapin_common( | |
6941
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changeset
|
2963 vpkt->vpkt_tgt_init_bp, VM_NOSLEEP); |
4851 | 2964 } |
2965 | |
2966 /* | |
2967 * Now copy the desired number of prin keys into the original | |
2968 * target buffer. | |
2969 */ | |
7201
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2970 if (svl_prin_length <= vpkt->vpkt_tgt_init_bp->b_bcount) { |
4851 | 2971 /* |
2972 * It is safe to return all of the available unique | |
2973 * keys | |
2974 */ | |
7201
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2975 bcopy(&vlun->svl_prin, prin, svl_prin_length); |
4851 | 2976 } else { |
2977 /* | |
2978 * Not all of the available keys were requested by the | |
2979 * original command. | |
2980 */ | |
2981 bcopy(&vlun->svl_prin, prin, | |
6941
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|
2982 vpkt->vpkt_tgt_init_bp->b_bcount); |
4851 | 2983 } |
2984 #ifdef DEBUG | |
2985 VHCI_DEBUG(5, (CE_NOTE, NULL, | |
2986 "vhci_do_prin: To Application:\n")); | |
2987 if (vhci_debug == 5) | |
2988 vhci_print_prin_keys(prin, new); | |
2989 VHCI_DEBUG(5, (CE_NOTE, NULL, | |
2990 "vhci_do_prin: MPxIO new keys:\n")); | |
2991 if (vhci_debug == 5) | |
2992 vhci_print_prin_keys(&vlun->svl_prin, new); | |
2993 #endif | |
2994 } | |
7201
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|
2995 fail: |
4851 | 2996 if (rval == VHCI_CMD_ERROR) { |
2997 /* | |
2998 * If we arrived at this point after issuing a | |
2999 * retry, make sure that we put everything back | |
3000 * the way it originally was so that ssd can | |
3001 * complete the command correctly. | |
3002 */ | |
3003 | |
6941
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|
3004 if (vpkt->vpkt_org_vpkt != NULL) { |
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|
3005 new_bp = vpkt->vpkt_tgt_init_bp; |
4851 | 3006 if (new_bp != NULL) { |
3007 scsi_free_consistent_buf(new_bp); | |
3008 } | |
3009 | |
6941
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changeset
|
3010 new_vpkt = vpkt; |
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|
3011 vpkt = vpkt->vpkt_org_vpkt; |
4851 | 3012 |
3013 vhci_scsi_destroy_pkt(&svp->svp_psd->sd_address, | |
3014 new_vpkt->vpkt_tgt_pkt); | |
3015 } | |
3016 | |
3017 /* | |
3018 * Mark this command completion as having an error so that | |
3019 * ssd will retry the command. | |
3020 */ | |
3021 | |
6941
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changeset
|
3022 vpkt->vpkt_tgt_pkt->pkt_reason = CMD_ABORTED; |
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changeset
|
3023 vpkt->vpkt_tgt_pkt->pkt_statistics |= STAT_ABORTED; |
4851 | 3024 |
3025 rval = VHCI_CMD_CMPLT; | |
3026 } | |
7201
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changeset
|
3027 exit: |
4851 | 3028 /* |
3029 * Make sure that the semaphore is only released once. | |
3030 */ | |
3031 if (rval == VHCI_CMD_CMPLT) { | |
3032 sema_v(&vlun->svl_pgr_sema); | |
3033 } | |
3034 | |
3035 return (rval); | |
3036 } | |
3037 | |
3038 static void | |
3039 vhci_intr(struct scsi_pkt *pkt) | |
3040 { | |
3041 struct vhci_pkt *vpkt = (struct vhci_pkt *)pkt->pkt_private; | |
3042 struct scsi_pkt *tpkt; | |
3043 scsi_vhci_priv_t *svp; | |
3044 scsi_vhci_lun_t *vlun; | |
3045 int rval, held; | |
3046 struct scsi_failover_ops *fops; | |
3047 struct scsi_extended_sense *sns; | |
3048 mdi_pathinfo_t *lpath; | |
3049 static char *timeout_err = "Command Timeout"; | |
3050 static char *parity_err = "Parity Error"; | |
3051 char *err_str = NULL; | |
3052 dev_info_t *vdip, *cdip, *pdip; | |
3053 char *cpath, *dpath; | |
3054 | |
3055 ASSERT(vpkt != NULL); | |
3056 tpkt = vpkt->vpkt_tgt_pkt; | |
3057 ASSERT(tpkt != NULL); | |
3058 svp = (scsi_vhci_priv_t *)mdi_pi_get_vhci_private(vpkt->vpkt_path); | |
3059 ASSERT(svp != NULL); | |
3060 vlun = svp->svp_svl; | |
3061 ASSERT(vlun != NULL); | |
3062 lpath = vpkt->vpkt_path; | |
3063 | |
3064 /* | |
3065 * sync up the target driver's pkt with the pkt that | |
3066 * we actually used | |
3067 */ | |
3068 *(tpkt->pkt_scbp) = *(pkt->pkt_scbp); | |
3069 tpkt->pkt_resid = pkt->pkt_resid; | |
3070 tpkt->pkt_state = pkt->pkt_state; | |
3071 tpkt->pkt_statistics = pkt->pkt_statistics; | |
3072 tpkt->pkt_reason = pkt->pkt_reason; | |
3073 | |
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3074 /* Return path_instance information back to the target driver. */ |
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3075 if (scsi_pkt_allocated_correctly(tpkt)) { |
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|
3076 if (scsi_pkt_allocated_correctly(pkt)) { |
c92ca9b95b9c
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|
3077 /* |
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|
3078 * If both packets were correctly allocated, |
c92ca9b95b9c
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|
3079 * return path returned by pHCI. |
c92ca9b95b9c
PSARC/2007/522 Disk enumeration for Sun Fire X4200 and X4200 M2
cth
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diff
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|
3080 */ |
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diff
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|
3081 tpkt->pkt_path_instance = pkt->pkt_path_instance; |
c92ca9b95b9c
PSARC/2007/522 Disk enumeration for Sun Fire X4200 and X4200 M2
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diff
changeset
|
3082 } else { |
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PSARC/2007/522 Disk enumeration for Sun Fire X4200 and X4200 M2
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diff
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|
3083 /* Otherwise return path of pHCI we used */ |
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PSARC/2007/522 Disk enumeration for Sun Fire X4200 and X4200 M2
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|
3084 tpkt->pkt_path_instance = |
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|
3085 mdi_pi_get_path_instance(lpath); |
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PSARC/2007/522 Disk enumeration for Sun Fire X4200 and X4200 M2
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diff
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|
3086 } |
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diff
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|
3087 } |
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|
3088 |
4851 | 3089 if (pkt->pkt_cdbp[0] == SCMD_PROUT && |
3090 ((pkt->pkt_cdbp[1] & 0x1f) == VHCI_PROUT_REGISTER) || | |
3091 ((pkt->pkt_cdbp[1] & 0x1f) == VHCI_PROUT_R_AND_IGNORE)) { | |
3092 if ((SCBP_C(pkt) != STATUS_GOOD) || | |
3093 (pkt->pkt_reason != CMD_CMPLT)) { | |
3094 sema_v(&vlun->svl_pgr_sema); | |
3095 } | |
3096 } else if (pkt->pkt_cdbp[0] == SCMD_PRIN) { | |
3097 if (pkt->pkt_reason != CMD_CMPLT || | |
3098 (SCBP_C(pkt) != STATUS_GOOD)) { | |
3099 sema_v(&vlun->svl_pgr_sema); | |
3100 } | |
3101 } | |
3102 | |
3103 switch (pkt->pkt_reason) { | |
3104 case CMD_CMPLT: | |
3105 /* | |
3106 * cmd completed successfully, check for scsi errors | |
3107 */ | |
3108 switch (*(pkt->pkt_scbp)) { | |
3109 case STATUS_CHECK: | |
3110 if (pkt->pkt_state & STATE_ARQ_DONE) { | |
3111 sns = &(((struct scsi_arq_status *)(uintptr_t) | |
3112 (pkt->pkt_scbp))->sts_sensedata); | |
3113 fops = vlun->svl_fops; | |
3114 ASSERT(fops != NULL); | |
3115 VHCI_DEBUG(4, (CE_NOTE, NULL, "vhci_intr: " | |
3116 "Received sns key %x esc %x escq %x\n", | |
3117 sns->es_key, sns->es_add_code, | |
3118 sns->es_qual_code)); | |
3119 | |
3120 if (vlun->svl_waiting_for_activepath == 1) { | |
3121 /* | |
3122 * if we are here it means we are | |
3123 * in the midst of a probe/attach | |
3124 * through a passive path; this | |
3125 * case is exempt from sense analysis | |
3126 * for detection of ext. failover | |
3127 * because that would unnecessarily | |
3128 * increase attach time. | |
3129 */ | |
3130 bcopy(pkt->pkt_scbp, tpkt->pkt_scbp, | |
3131 vpkt->vpkt_tgt_init_scblen); | |
3132 break; | |
3133 } | |
3134 if (sns->es_add_code == VHCI_SCSI_PERR) { | |
3135 /* | |
3136 * parity error | |
3137 */ | |
3138 err_str = parity_err; | |
3139 bcopy(pkt->pkt_scbp, tpkt->pkt_scbp, | |
3140 vpkt->vpkt_tgt_init_scblen); | |
3141 break; | |
3142 } | |
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3143 rval = fops->sfo_analyze_sense(svp->svp_psd, |
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changeset
|
3144 sns, vlun->svl_fops_ctpriv); |
4851 | 3145 if ((rval == SCSI_SENSE_NOFAILOVER) || |
3146 (rval == SCSI_SENSE_UNKNOWN) || | |
3147 (rval == SCSI_SENSE_NOT_READY)) { | |
3148 bcopy(pkt->pkt_scbp, tpkt->pkt_scbp, | |
3149 vpkt->vpkt_tgt_init_scblen); | |
3150 break; | |
3151 } else if (rval == SCSI_SENSE_STATE_CHANGED) { | |
3152 struct scsi_vhci *vhci; | |
3153 vhci = ADDR2VHCI(&tpkt->pkt_address); | |
3154 VHCI_HOLD_LUN(vlun, VH_NOSLEEP, held); | |
3155 if (!held) { | |
3156 /* | |
3157 * looks like some other thread | |
3158 * has already detected this | |
3159 * condition | |
3160 */ | |
3161 tpkt->pkt_state &= | |
3162 ~STATE_ARQ_DONE; | |
3163 *(tpkt->pkt_scbp) = | |
3164 STATUS_BUSY; | |
3165 break; | |
3166 } | |
3167 (void) taskq_dispatch( | |
3168 vhci->vhci_update_pathstates_taskq, | |
3169 vhci_update_pathstates, | |
3170 (void *)vlun, KM_SLEEP); | |
3171 } else { | |
3172 /* | |
3173 * externally initiated failover | |
3174 * has occurred or is in progress | |
3175 */ | |
3176 VHCI_HOLD_LUN(vlun, VH_NOSLEEP, held); | |
3177 if (!held) { | |
3178 /* | |
3179 * looks like some other thread | |
3180 * has already detected this | |
3181 * condition | |
3182 */ | |
3183 tpkt->pkt_state &= | |
3184 ~STATE_ARQ_DONE; | |
3185 *(tpkt->pkt_scbp) = | |
3186 STATUS_BUSY; | |
3187 break; | |
3188 } else { | |
3189 rval = vhci_handle_ext_fo | |
3190 (pkt, rval); | |
3191 if (rval == BUSY_RETURN) { | |
3192 tpkt->pkt_state &= | |
3193 ~STATE_ARQ_DONE; | |
3194 *(tpkt->pkt_scbp) = | |
3195 STATUS_BUSY; | |
3196 break; | |
3197 } | |
3198 bcopy(pkt->pkt_scbp, | |
3199 tpkt->pkt_scbp, | |
3200 vpkt->vpkt_tgt_init_scblen); | |
3201 break; | |
3202 } | |
3203 } | |
3204 } | |
3205 break; | |
3206 | |
3207 /* | |
3208 * If this is a good SCSI-II RELEASE cmd completion then restore | |
3209 * the load balancing policy and reset VLUN_RESERVE_ACTIVE_FLG. | |
3210 * If this is a good SCSI-II RESERVE cmd completion then set | |
3211 * VLUN_RESERVE_ACTIVE_FLG. | |
3212 */ | |
3213 case STATUS_GOOD: | |
3214 if ((pkt->pkt_cdbp[0] == SCMD_RELEASE) || | |
3215 (pkt->pkt_cdbp[0] == SCMD_RELEASE_G1)) { | |
3216 (void) mdi_set_lb_policy(vlun->svl_dip, | |
3217 vlun->svl_lb_policy_save); | |
3218 vlun->svl_flags &= ~VLUN_RESERVE_ACTIVE_FLG; | |
3219 VHCI_DEBUG(1, (CE_WARN, NULL, | |
3220 "!vhci_intr: vlun 0x%p release path 0x%p", | |
3221 (void *)vlun, (void *)vpkt->vpkt_path)); | |
3222 } | |
3223 | |
3224 if ((pkt->pkt_cdbp[0] == SCMD_RESERVE) || | |
3225 (pkt->pkt_cdbp[0] == SCMD_RESERVE_G1)) { | |
3226 vlun->svl_flags |= VLUN_RESERVE_ACTIVE_FLG; | |
3227 vlun->svl_resrv_pip = vpkt->vpkt_path; | |
3228 VHCI_DEBUG(1, (CE_WARN, NULL, | |
3229 "!vhci_intr: vlun 0x%p reserved path 0x%p", | |
3230 (void *)vlun, (void *)vpkt->vpkt_path)); | |
3231 } | |
3232 break; | |
3233 | |
3234 case STATUS_RESERVATION_CONFLICT: | |
3235 VHCI_DEBUG(1, (CE_WARN, NULL, | |
3236 "!vhci_intr: vlun 0x%p " | |
3237 "reserve conflict on path 0x%p", | |
3238 (void *)vlun, (void *)vpkt->vpkt_path)); | |
3239 /* FALLTHROUGH */ | |
3240 default: | |
3241 break; | |
3242 } | |
3243 | |
3244 /* | |
3245 * Update I/O completion statistics for the path | |
3246 */ | |
3247 mdi_pi_kstat_iosupdate(vpkt->vpkt_path, vpkt->vpkt_tgt_init_bp); | |
3248 | |
3249 /* | |
3250 * Command completed successfully, release the dma binding and | |
3251 * destroy the transport side of the packet. | |
3252 */ | |
7201
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7191
diff
changeset
|
3253 if ((pkt->pkt_cdbp[0] == SCMD_PROUT) && |
4851 | 3254 (((pkt->pkt_cdbp[1] & 0x1f) == VHCI_PROUT_REGISTER) || |
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diff
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|
3255 ((pkt->pkt_cdbp[1] & 0x1f) == VHCI_PROUT_R_AND_IGNORE))) { |
4851 | 3256 if (SCBP_C(pkt) == STATUS_GOOD) { |
3257 ASSERT(vlun->svl_taskq); | |
3258 svp->svp_last_pkt_reason = pkt->pkt_reason; | |
3259 (void) taskq_dispatch(vlun->svl_taskq, | |
3260 vhci_run_cmd, pkt, KM_SLEEP); | |
3261 return; | |
3262 } | |
3263 } | |
3264 if ((SCBP_C(pkt) == STATUS_GOOD) && | |
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6459247 scsi_vhci does not return correct value for dma-max property
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6777
diff
changeset
|
3265 (pkt->pkt_cdbp[0] == SCMD_PRIN) && vpkt->vpkt_tgt_init_bp) { |
4851 | 3266 /* |
3267 * If the action (value in byte 1 of the cdb) is zero, | |
3268 * we're reading keys, and that's the only condition | |
3269 * where we need to be concerned with filtering keys | |
3270 * and potential retries. Otherwise, we simply signal | |
3271 * the semaphore and move on. | |
3272 */ | |
3273 if (pkt->pkt_cdbp[1] == 0) { | |
3274 /* | |
3275 * If this is the completion of an internal | |
3276 * retry then we need to make sure that the | |
3277 * pkt and tpkt pointers are readjusted so | |
3278 * the calls to scsi_destroy_pkt and pkt_comp | |
3279 * below work * correctly. | |
3280 */ | |
3281 if (vpkt->vpkt_org_vpkt != NULL) { | |
3282 pkt = vpkt->vpkt_org_vpkt->vpkt_hba_pkt; | |
3283 tpkt = vpkt->vpkt_org_vpkt-> | |
3284 vpkt_tgt_pkt; | |
3285 | |
3286 /* | |
3287 * If this command was issued through | |
3288 * the taskq then we need to clear | |
3289 * this flag for proper processing in | |
3290 * the case of a retry from the target | |
3291 * driver. | |
3292 */ | |
3293 vpkt->vpkt_state &= | |
3294 ~VHCI_PKT_THRU_TASKQ; | |
3295 } | |
3296 | |
3297 /* | |
3298 * if vhci_do_prin returns VHCI_CMD_CMPLT then | |
3299 * vpkt will contain the address of the | |
3300 * original vpkt | |
3301 */ | |
7201
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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7191
diff
changeset
|
3302 if (vhci_do_prin(&vpkt) == VHCI_CMD_RETRY) { |
4851 | 3303 /* |
3304 * The command has been resent to get | |
3305 * all the keys from the device. Don't | |
3306 * complete the command with ssd until | |
3307 * the retry completes. | |
3308 */ | |
3309 return; | |
3310 } | |
3311 } else { | |
3312 sema_v(&vlun->svl_pgr_sema); | |
3313 } | |
3314 } | |
3315 | |
3316 break; | |
3317 | |
3318 case CMD_TIMEOUT: | |
3319 if ((pkt->pkt_statistics & | |
3320 (STAT_BUS_RESET|STAT_DEV_RESET|STAT_ABORTED)) == 0) { | |
3321 | |
3322 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
3323 "!scsi vhci timeout invoked\n")); | |
3324 | |
3325 (void) vhci_recovery_reset(vlun, &pkt->pkt_address, | |
3326 FALSE, VHCI_DEPTH_ALL); | |
3327 } | |
3328 MDI_PI_ERRSTAT(lpath, MDI_PI_TRANSERR); | |
3329 tpkt->pkt_statistics |= STAT_ABORTED; | |
3330 err_str = timeout_err; | |
3331 break; | |
3332 | |
3333 case CMD_TRAN_ERR: | |
3334 /* | |
3335 * This status is returned if the transport has sent the cmd | |
3336 * down the link to the target and then some error occurs. | |
3337 * In case of SCSI-II RESERVE cmd, we don't know if the | |
3338 * reservation been accepted by the target or not, so we need | |
3339 * to clear the reservation. | |
3340 */ | |
3341 if ((pkt->pkt_cdbp[0] == SCMD_RESERVE) || | |
3342 (pkt->pkt_cdbp[0] == SCMD_RESERVE_G1)) { | |
3343 VHCI_DEBUG(1, (CE_NOTE, NULL, "!vhci_intr received" | |
3344 " cmd_tran_err for scsi-2 reserve cmd\n")); | |
3345 if (!vhci_recovery_reset(vlun, &pkt->pkt_address, | |
3346 TRUE, VHCI_DEPTH_TARGET)) { | |
3347 VHCI_DEBUG(1, (CE_WARN, NULL, | |
3348 "!vhci_intr cmd_tran_err reset failed!")); | |
3349 } | |
3350 } | |
3351 break; | |
3352 | |
3353 case CMD_DEV_GONE: | |
6941
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
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6777
diff
changeset
|
3354 VHCI_DEBUG(1, (CE_NOTE, NULL, "vhci_intr received " |
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
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6777
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changeset
|
3355 "cmd_dev_gone\n")); |
4851 | 3356 tpkt->pkt_reason = CMD_CMPLT; |
3357 tpkt->pkt_state = STATE_GOT_BUS | | |
3358 STATE_GOT_TARGET | STATE_SENT_CMD | | |
3359 STATE_GOT_STATUS; | |
3360 *(tpkt->pkt_scbp) = STATUS_BUSY; | |
3361 break; | |
3362 | |
3363 default: | |
3364 break; | |
3365 } | |
3366 | |
3367 /* | |
3368 * SCSI-II RESERVE cmd has been serviced by the lower layers clear | |
3369 * the flag so the lun is not QUIESCED any longer. | |
3370 * Also clear the VHCI_PKT_THRU_TASKQ flag, to ensure that if this pkt | |
3371 * is retried, a taskq shall again be dispatched to service it. Else | |
3372 * it may lead to a system hang if the retry is within interrupt | |
3373 * context. | |
3374 */ | |
3375 if ((pkt->pkt_cdbp[0] == SCMD_RESERVE) || | |
3376 (pkt->pkt_cdbp[0] == SCMD_RESERVE_G1)) { | |
3377 vlun->svl_flags &= ~VLUN_QUIESCED_FLG; | |
3378 vpkt->vpkt_state &= ~VHCI_PKT_THRU_TASKQ; | |
3379 } | |
3380 | |
3381 /* | |
3382 * vpkt_org_vpkt should always be NULL here if the retry command | |
3383 * has been successfully processed. If vpkt_org_vpkt != NULL at | |
3384 * this point, it is an error so restore the original vpkt and | |
3385 * return an error to the target driver so it can retry the | |
3386 * command as appropriate. | |
3387 */ | |
3388 if (vpkt->vpkt_org_vpkt != NULL) { | |
3389 struct vhci_pkt *new_vpkt = vpkt; | |
3390 vpkt = vpkt->vpkt_org_vpkt; | |
3391 | |
3392 vhci_scsi_destroy_pkt(&svp->svp_psd->sd_address, | |
3393 new_vpkt->vpkt_tgt_pkt); | |
3394 | |
3395 /* | |
3396 * Mark this command completion as having an error so that | |
3397 * ssd will retry the command. | |
3398 */ | |
3399 vpkt->vpkt_tgt_pkt->pkt_reason = CMD_ABORTED; | |
3400 vpkt->vpkt_tgt_pkt->pkt_statistics |= STAT_ABORTED; | |
3401 | |
3402 pkt = vpkt->vpkt_hba_pkt; | |
3403 tpkt = vpkt->vpkt_tgt_pkt; | |
3404 } | |
3405 | |
3406 if ((err_str != NULL) && (pkt->pkt_reason != | |
3407 svp->svp_last_pkt_reason)) { | |
3408 cdip = vlun->svl_dip; | |
3409 pdip = mdi_pi_get_phci(vpkt->vpkt_path); | |
3410 vdip = ddi_get_parent(cdip); | |
3411 cpath = kmem_alloc(MAXPATHLEN, KM_SLEEP); | |
3412 dpath = kmem_alloc(MAXPATHLEN, KM_SLEEP); | |
3413 vhci_log(CE_WARN, vdip, "!%s (%s%d): %s on path %s (%s%d)", | |
3414 ddi_pathname(cdip, cpath), ddi_driver_name(cdip), | |
3415 ddi_get_instance(cdip), err_str, | |
3416 ddi_pathname(pdip, dpath), ddi_driver_name(pdip), | |
3417 ddi_get_instance(pdip)); | |
3418 kmem_free(cpath, MAXPATHLEN); | |
3419 kmem_free(dpath, MAXPATHLEN); | |
3420 } | |
3421 svp->svp_last_pkt_reason = pkt->pkt_reason; | |
3422 VHCI_DECR_PATH_CMDCOUNT(svp); | |
3423 | |
3424 /* | |
3425 * For PARTIAL_DMA, vhci should not free the path. | |
3426 * Target driver will call into vhci_scsi_dmafree or | |
3427 * destroy pkt to release this path. | |
3428 */ | |
3429 if ((vpkt->vpkt_flags & CFLAG_DMA_PARTIAL) == 0) { | |
3430 scsi_destroy_pkt(pkt); | |
3431 vpkt->vpkt_hba_pkt = NULL; | |
3432 if (vpkt->vpkt_path) { | |
3433 mdi_rele_path(vpkt->vpkt_path); | |
3434 vpkt->vpkt_path = NULL; | |
3435 } | |
3436 } | |
3437 | |
3438 if (tpkt->pkt_comp) { | |
3439 (*tpkt->pkt_comp)(tpkt); | |
3440 } | |
3441 } | |
3442 | |
3443 /* | |
3444 * two possibilities: (1) failover has completed | |
3445 * or (2) is in progress; update our path states for | |
3446 * the former case; for the latter case, | |
3447 * initiate a scsi_watch request to | |
3448 * determine when failover completes - vlun is HELD | |
3449 * until failover completes; BUSY is returned to upper | |
3450 * layer in both the cases | |
3451 */ | |
3452 static int | |
3453 vhci_handle_ext_fo(struct scsi_pkt *pkt, int fostat) | |
3454 { | |
3455 struct vhci_pkt *vpkt = (struct vhci_pkt *)pkt->pkt_private; | |
3456 struct scsi_pkt *tpkt; | |
3457 scsi_vhci_priv_t *svp; | |
3458 scsi_vhci_lun_t *vlun; | |
3459 struct scsi_vhci *vhci; | |
3460 scsi_vhci_swarg_t *swarg; | |
3461 char *path; | |
3462 | |
3463 ASSERT(vpkt != NULL); | |
3464 tpkt = vpkt->vpkt_tgt_pkt; | |
3465 ASSERT(tpkt != NULL); | |
3466 svp = (scsi_vhci_priv_t *)mdi_pi_get_vhci_private(vpkt->vpkt_path); | |
3467 ASSERT(svp != NULL); | |
3468 vlun = svp->svp_svl; | |
3469 ASSERT(vlun != NULL); | |
3470 ASSERT(VHCI_LUN_IS_HELD(vlun)); | |
3471 | |
3472 vhci = ADDR2VHCI(&tpkt->pkt_address); | |
3473 | |
3474 if (fostat == SCSI_SENSE_INACTIVE) { | |
3475 VHCI_DEBUG(1, (CE_NOTE, NULL, "!Failover " | |
3476 "detected for %s; updating path states...\n", | |
3477 vlun->svl_lun_wwn)); | |
3478 /* | |
3479 * set the vlun flag to indicate to the task that the target | |
3480 * port group needs updating | |
3481 */ | |
3482 vlun->svl_flags |= VLUN_UPDATE_TPG; | |
3483 (void) taskq_dispatch(vhci->vhci_update_pathstates_taskq, | |
3484 vhci_update_pathstates, (void *)vlun, KM_SLEEP); | |
3485 } else { | |
3486 path = kmem_alloc(MAXPATHLEN, KM_SLEEP); | |
3487 vhci_log(CE_NOTE, ddi_get_parent(vlun->svl_dip), | |
3488 "!%s (%s%d): Waiting for externally initiated failover " | |
3489 "to complete", ddi_pathname(vlun->svl_dip, path), | |
3490 ddi_driver_name(vlun->svl_dip), | |
3491 ddi_get_instance(vlun->svl_dip)); | |
3492 kmem_free(path, MAXPATHLEN); | |
3493 swarg = kmem_alloc(sizeof (*swarg), KM_NOSLEEP); | |
3494 if (swarg == NULL) { | |
3495 VHCI_DEBUG(1, (CE_NOTE, NULL, "!vhci_handle_ext_fo: " | |
3496 "request packet allocation for %s failed....\n", | |
3497 vlun->svl_lun_wwn)); | |
3498 VHCI_RELEASE_LUN(vlun); | |
3499 return (PKT_RETURN); | |
3500 } | |
3501 swarg->svs_svp = svp; | |
3502 swarg->svs_tos = ddi_get_time(); | |
3503 swarg->svs_pi = vpkt->vpkt_path; | |
3504 swarg->svs_release_lun = 0; | |
3505 swarg->svs_done = 0; | |
3506 /* | |
3507 * place a hold on the path...we don't want it to | |
3508 * vanish while scsi_watch is in progress | |
3509 */ | |
3510 mdi_hold_path(vpkt->vpkt_path); | |
3511 svp->svp_sw_token = scsi_watch_request_submit(svp->svp_psd, | |
3512 VHCI_FOWATCH_INTERVAL, SENSE_LENGTH, vhci_efo_watch_cb, | |
3513 (caddr_t)swarg); | |
3514 } | |
3515 return (BUSY_RETURN); | |
3516 } | |
3517 | |
3518 /* | |
3519 * vhci_efo_watch_cb: | |
3520 * Callback from scsi_watch request to check the failover status. | |
3521 * Completion is either due to successful failover or timeout. | |
3522 * Upon successful completion, vhci_update_path_states is called. | |
3523 * For timeout condition, vhci_efo_done is called. | |
3524 * Always returns 0 to scsi_watch to keep retrying till vhci_efo_done | |
3525 * terminates this request properly in a separate thread. | |
3526 */ | |
3527 | |
3528 static int | |
3529 vhci_efo_watch_cb(caddr_t arg, struct scsi_watch_result *resultp) | |
3530 { | |
3531 struct scsi_status *statusp = resultp->statusp; | |
3532 struct scsi_extended_sense *sensep = resultp->sensep; | |
3533 struct scsi_pkt *pkt = resultp->pkt; | |
3534 scsi_vhci_swarg_t *swarg; | |
3535 scsi_vhci_priv_t *svp; | |
3536 scsi_vhci_lun_t *vlun; | |
3537 struct scsi_vhci *vhci; | |
3538 dev_info_t *vdip; | |
3539 int rval, updt_paths; | |
3540 | |
3541 swarg = (scsi_vhci_swarg_t *)(uintptr_t)arg; | |
3542 svp = swarg->svs_svp; | |
3543 if (swarg->svs_done) { | |
3544 /* | |
3545 * Already completed failover or timedout. | |
3546 * Waiting for vhci_efo_done to terminate this scsi_watch. | |
3547 */ | |
3548 return (0); | |
3549 } | |
3550 | |
3551 ASSERT(svp != NULL); | |
3552 vlun = svp->svp_svl; | |
3553 ASSERT(vlun != NULL); | |
3554 ASSERT(VHCI_LUN_IS_HELD(vlun)); | |
3555 vlun->svl_efo_update_path = 0; | |
3556 vdip = ddi_get_parent(vlun->svl_dip); | |
3557 vhci = ddi_get_soft_state(vhci_softstate, | |
3558 ddi_get_instance(vdip)); | |
3559 | |
3560 updt_paths = 0; | |
3561 | |
3562 if (pkt->pkt_reason != CMD_CMPLT) { | |
3563 if ((ddi_get_time() - swarg->svs_tos) >= VHCI_EXTFO_TIMEOUT) { | |
3564 swarg->svs_release_lun = 1; | |
3565 goto done; | |
3566 } | |
3567 return (0); | |
3568 } | |
3569 if (*((unsigned char *)statusp) == STATUS_CHECK) { | |
6941
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
rralphs
parents:
6777
diff
changeset
|
3570 rval = vlun->svl_fops->sfo_analyze_sense(svp->svp_psd, sensep, |
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
rralphs
parents:
6777
diff
changeset
|
3571 vlun->svl_fops_ctpriv); |
4851 | 3572 switch (rval) { |
3573 /* | |
3574 * Only update path states in case path is definitely | |
3575 * inactive, or no failover occurred. For all other | |
3576 * check conditions continue pinging. A unexpected | |
3577 * check condition shouldn't cause pinging to complete | |
3578 * prematurely. | |
3579 */ | |
3580 case SCSI_SENSE_INACTIVE: | |
3581 case SCSI_SENSE_NOFAILOVER: | |
3582 updt_paths = 1; | |
3583 break; | |
3584 default: | |
3585 if ((ddi_get_time() - swarg->svs_tos) | |
3586 >= VHCI_EXTFO_TIMEOUT) { | |
3587 swarg->svs_release_lun = 1; | |
3588 goto done; | |
3589 } | |
3590 return (0); | |
3591 } | |
3592 } else if (*((unsigned char *)statusp) == | |
3593 STATUS_RESERVATION_CONFLICT) { | |
3594 updt_paths = 1; | |
3595 } else if ((*((unsigned char *)statusp)) & | |
3596 (STATUS_BUSY | STATUS_QFULL)) { | |
3597 return (0); | |
3598 } | |
3599 if ((*((unsigned char *)statusp) == STATUS_GOOD) || | |
3600 (updt_paths == 1)) { | |
3601 /* | |
3602 * we got here because we had detected an | |
3603 * externally initiated failover; things | |
3604 * have settled down now, so let's | |
3605 * start up a task to update the | |
3606 * path states and target port group | |
3607 */ | |
3608 vlun->svl_efo_update_path = 1; | |
3609 swarg->svs_done = 1; | |
3610 vlun->svl_swarg = swarg; | |
3611 vlun->svl_flags |= VLUN_UPDATE_TPG; | |
3612 (void) taskq_dispatch(vhci->vhci_update_pathstates_taskq, | |
3613 vhci_update_pathstates, (void *)vlun, | |
3614 KM_SLEEP); | |
3615 return (0); | |
3616 } | |
3617 if ((ddi_get_time() - swarg->svs_tos) >= VHCI_EXTFO_TIMEOUT) { | |
3618 swarg->svs_release_lun = 1; | |
3619 goto done; | |
3620 } | |
3621 return (0); | |
3622 done: | |
3623 swarg->svs_done = 1; | |
3624 (void) taskq_dispatch(vhci->vhci_taskq, | |
3625 vhci_efo_done, (void *)swarg, KM_SLEEP); | |
3626 return (0); | |
3627 } | |
3628 | |
3629 /* | |
3630 * vhci_efo_done: | |
3631 * cleanly terminates scsi_watch and free up resources. | |
3632 * Called as taskq function in vhci_efo_watch_cb for EFO timeout condition | |
3633 * or by vhci_update_path_states invoked during external initiated | |
3634 * failover completion. | |
3635 */ | |
3636 static void | |
3637 vhci_efo_done(void *arg) | |
3638 { | |
3639 scsi_vhci_lun_t *vlun; | |
3640 scsi_vhci_swarg_t *swarg = (scsi_vhci_swarg_t *)arg; | |
3641 scsi_vhci_priv_t *svp = swarg->svs_svp; | |
3642 ASSERT(svp); | |
3643 | |
3644 vlun = svp->svp_svl; | |
3645 ASSERT(vlun); | |
3646 | |
3647 /* Wait for clean termination of scsi_watch */ | |
3648 (void) scsi_watch_request_terminate(svp->svp_sw_token, | |
7191
174d749b3f22
6520112 simultaneous DKIOCSTATE calls causes panic
tl223370
parents:
7121
diff
changeset
|
3649 SCSI_WATCH_TERMINATE_ALL_WAIT); |
4851 | 3650 svp->svp_sw_token = NULL; |
3651 | |
3652 /* release path and freeup resources to indicate failover completion */ | |
3653 mdi_rele_path(swarg->svs_pi); | |
3654 if (swarg->svs_release_lun) { | |
3655 VHCI_RELEASE_LUN(vlun); | |
3656 } | |
3657 kmem_free((void *)swarg, sizeof (*swarg)); | |
3658 } | |
3659 | |
3660 /* | |
3661 * Update the path states | |
3662 * vlun should be HELD when this is invoked. | |
3663 * Calls vhci_efo_done to cleanup resources allocated for EFO. | |
3664 */ | |
3665 void | |
3666 vhci_update_pathstates(void *arg) | |
3667 { | |
3668 mdi_pathinfo_t *pip, *npip; | |
3669 dev_info_t *dip, *pdip; | |
3670 struct scsi_failover_ops *fo; | |
3671 struct scsi_vhci_priv *svp; | |
3672 struct scsi_device *psd; | |
3673 struct scsi_path_opinfo opinfo; | |
3674 char *pclass, *tptr; | |
3675 struct scsi_vhci_lun *vlun = (struct scsi_vhci_lun *)arg; | |
3676 int sps; /* mdi_select_path() status */ | |
3677 char *cpath, *dpath; | |
3678 struct scsi_vhci *vhci; | |
3679 struct scsi_pkt *pkt; | |
3680 struct buf *bp; | |
3681 int reserve_conflict = 0; | |
3682 | |
3683 ASSERT(VHCI_LUN_IS_HELD(vlun)); | |
3684 dip = vlun->svl_dip; | |
3685 pip = npip = NULL; | |
3686 | |
3687 vhci = ddi_get_soft_state(vhci_softstate, | |
3688 ddi_get_instance(ddi_get_parent(dip))); | |
3689 | |
3690 sps = mdi_select_path(dip, NULL, (MDI_SELECT_ONLINE_PATH | | |
7461
1c206c17e7a2
6649625 MPxIO not trying on all available paths on device and path failures to storage
Sheshadri Vasudevan <Sheshadri.Vasudevan@Sun.COM>
parents:
7399
diff
changeset
|
3691 MDI_SELECT_STANDBY_PATH | MDI_SELECT_NO_PREFERRED), NULL, &npip); |
4851 | 3692 if ((npip == NULL) || (sps != MDI_SUCCESS)) { |
3693 goto done; | |
3694 } | |
3695 | |
3696 fo = vlun->svl_fops; | |
3697 do { | |
3698 pip = npip; | |
3699 svp = (scsi_vhci_priv_t *)mdi_pi_get_vhci_private(pip); | |
3700 psd = svp->svp_psd; | |
6941
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
rralphs
parents:
6777
diff
changeset
|
3701 if (fo->sfo_path_get_opinfo(psd, &opinfo, |
4851 | 3702 vlun->svl_fops_ctpriv) != 0) { |
3703 sps = mdi_select_path(dip, NULL, | |
7461
1c206c17e7a2
6649625 MPxIO not trying on all available paths on device and path failures to storage
Sheshadri Vasudevan <Sheshadri.Vasudevan@Sun.COM>
parents:
7399
diff
changeset
|
3704 (MDI_SELECT_ONLINE_PATH | MDI_SELECT_STANDBY_PATH | |
1c206c17e7a2
6649625 MPxIO not trying on all available paths on device and path failures to storage
Sheshadri Vasudevan <Sheshadri.Vasudevan@Sun.COM>
parents:
7399
diff
changeset
|
3705 MDI_SELECT_NO_PREFERRED), pip, &npip); |
4851 | 3706 mdi_rele_path(pip); |
3707 continue; | |
3708 } | |
3709 | |
3710 if (mdi_prop_lookup_string(pip, "path-class", &pclass) != | |
3711 MDI_SUCCESS) { | |
3712 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
3713 "!vhci_update_pathstates: prop lookup failed for " | |
3714 "path 0x%p\n", (void *)pip)); | |
3715 sps = mdi_select_path(dip, NULL, | |
7461
1c206c17e7a2
6649625 MPxIO not trying on all available paths on device and path failures to storage
Sheshadri Vasudevan <Sheshadri.Vasudevan@Sun.COM>
parents:
7399
diff
changeset
|
3716 (MDI_SELECT_ONLINE_PATH | MDI_SELECT_STANDBY_PATH | |
1c206c17e7a2
6649625 MPxIO not trying on all available paths on device and path failures to storage
Sheshadri Vasudevan <Sheshadri.Vasudevan@Sun.COM>
parents:
7399
diff
changeset
|
3717 MDI_SELECT_NO_PREFERRED), pip, &npip); |
4851 | 3718 mdi_rele_path(pip); |
3719 continue; | |
3720 } | |
3721 | |
3722 /* | |
3723 * Need to update the "path-class" property | |
3724 * value in the device tree if different | |
3725 * from the existing value. | |
3726 */ | |
3727 if (strcmp(pclass, opinfo.opinfo_path_attr) != 0) { | |
3728 (void) mdi_prop_update_string(pip, "path-class", | |
3729 opinfo.opinfo_path_attr); | |
3730 } | |
3731 | |
3732 /* | |
3733 * Only change the state if needed. i.e. Don't call | |
3734 * mdi_pi_set_state to ONLINE a path if its already | |
3735 * ONLINE. Same for STANDBY paths. | |
3736 */ | |
3737 | |
3738 if ((opinfo.opinfo_path_state == SCSI_PATH_ACTIVE || | |
3739 opinfo.opinfo_path_state == SCSI_PATH_ACTIVE_NONOPT)) { | |
3740 if (!(MDI_PI_IS_ONLINE(pip))) { | |
3741 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
3742 "!vhci_update_pathstates: marking path" | |
3743 " 0x%p as ONLINE\n", (void *)pip)); | |
3744 pdip = mdi_pi_get_phci(pip); | |
3745 cpath = kmem_alloc(MAXPATHLEN, KM_SLEEP); | |
3746 dpath = kmem_alloc(MAXPATHLEN, KM_SLEEP); | |
3747 vhci_log(CE_NOTE, ddi_get_parent(dip), "!%s" | |
3748 " (%s%d): path %s (%s%d) target address %s" | |
3749 " is now ONLINE because of" | |
3750 " an externally initiated failover", | |
3751 ddi_pathname(dip, cpath), | |
3752 ddi_driver_name(dip), | |
3753 ddi_get_instance(dip), | |
3754 ddi_pathname(pdip, dpath), | |
3755 ddi_driver_name(pdip), | |
3756 ddi_get_instance(pdip), | |
3757 mdi_pi_get_addr(pip)); | |
3758 kmem_free(cpath, MAXPATHLEN); | |
3759 kmem_free(dpath, MAXPATHLEN); | |
3760 mdi_pi_set_state(pip, | |
3761 MDI_PATHINFO_STATE_ONLINE); | |
3762 mdi_pi_set_preferred(pip, | |
3763 opinfo.opinfo_preferred); | |
3764 tptr = kmem_alloc(strlen | |
3765 (opinfo.opinfo_path_attr)+1, KM_SLEEP); | |
3766 (void) strlcpy(tptr, opinfo.opinfo_path_attr, | |
3767 (strlen(opinfo.opinfo_path_attr)+1)); | |
3768 mutex_enter(&vlun->svl_mutex); | |
3769 if (vlun->svl_active_pclass != NULL) { | |
3770 kmem_free(vlun->svl_active_pclass, | |
3771 strlen(vlun->svl_active_pclass)+1); | |
3772 } | |
3773 vlun->svl_active_pclass = tptr; | |
3774 if (vlun->svl_waiting_for_activepath) { | |
3775 vlun->svl_waiting_for_activepath = 0; | |
3776 } | |
3777 mutex_exit(&vlun->svl_mutex); | |
3778 /* Check for Reservation Conflict */ | |
3779 bp = scsi_alloc_consistent_buf( | |
3780 &svp->svp_psd->sd_address, | |
3781 (struct buf *)NULL, DEV_BSIZE, B_READ, | |
3782 NULL, NULL); | |
3783 if (!bp) { | |
3784 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
3785 "vhci_update_pathstates: " | |
3786 "!No resources (buf)\n")); | |
3787 mdi_rele_path(pip); | |
3788 goto done; | |
3789 } | |
3790 pkt = scsi_init_pkt(&svp->svp_psd->sd_address, | |
3791 NULL, bp, CDB_GROUP1, | |
3792 sizeof (struct scsi_arq_status), 0, | |
3793 PKT_CONSISTENT, NULL, NULL); | |
3794 if (pkt) { | |
3795 (void) scsi_setup_cdb((union scsi_cdb *) | |
3796 (uintptr_t)pkt->pkt_cdbp, | |
3797 SCMD_READ, 1, 1, 0); | |
3798 pkt->pkt_time = 3*30; | |
3799 pkt->pkt_flags = FLAG_NOINTR; | |
6640
c92ca9b95b9c
PSARC/2007/522 Disk enumeration for Sun Fire X4200 and X4200 M2
cth
parents:
6042
diff
changeset
|
3800 pkt->pkt_path_instance = |
c92ca9b95b9c
PSARC/2007/522 Disk enumeration for Sun Fire X4200 and X4200 M2
cth
parents:
6042
diff
changeset
|
3801 mdi_pi_get_path_instance(pip); |
c92ca9b95b9c
PSARC/2007/522 Disk enumeration for Sun Fire X4200 and X4200 M2
cth
parents:
6042
diff
changeset
|
3802 |
4851 | 3803 if ((scsi_transport(pkt) == |
3804 TRAN_ACCEPT) && (pkt->pkt_reason | |
3805 == CMD_CMPLT) && (SCBP_C(pkt) == | |
3806 STATUS_RESERVATION_CONFLICT)) { | |
3807 reserve_conflict = 1; | |
3808 } | |
3809 scsi_destroy_pkt(pkt); | |
3810 } | |
3811 scsi_free_consistent_buf(bp); | |
3812 } else if (MDI_PI_IS_ONLINE(pip)) { | |
3813 if (strcmp(pclass, opinfo.opinfo_path_attr) | |
3814 != 0) { | |
3815 mdi_pi_set_preferred(pip, | |
3816 opinfo.opinfo_preferred); | |
3817 mutex_enter(&vlun->svl_mutex); | |
3818 if (vlun->svl_active_pclass == NULL || | |
3819 strcmp(opinfo.opinfo_path_attr, | |
3820 vlun->svl_active_pclass) != 0) { | |
3821 mutex_exit(&vlun->svl_mutex); | |
3822 tptr = kmem_alloc(strlen | |
3823 (opinfo.opinfo_path_attr)+1, | |
3824 KM_SLEEP); | |
3825 (void) strlcpy(tptr, | |
3826 opinfo.opinfo_path_attr, | |
3827 (strlen | |
3828 (opinfo.opinfo_path_attr) | |
3829 +1)); | |
3830 mutex_enter(&vlun->svl_mutex); | |
3831 } else { | |
3832 /* | |
3833 * No need to update | |
3834 * svl_active_pclass | |
3835 */ | |
3836 tptr = NULL; | |
3837 mutex_exit(&vlun->svl_mutex); | |
3838 } | |
3839 if (tptr) { | |
3840 if (vlun->svl_active_pclass | |
3841 != NULL) { | |
3842 kmem_free(vlun-> | |
3843 svl_active_pclass, | |
3844 strlen(vlun-> | |
3845 svl_active_pclass) | |
3846 +1); | |
3847 } | |
3848 vlun->svl_active_pclass = tptr; | |
3849 mutex_exit(&vlun->svl_mutex); | |
3850 } | |
3851 } | |
3852 } | |
3853 } else if ((opinfo.opinfo_path_state == SCSI_PATH_INACTIVE) && | |
3854 !(MDI_PI_IS_STANDBY(pip))) { | |
3855 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
3856 "!vhci_update_pathstates: marking path" | |
3857 " 0x%p as STANDBY\n", (void *)pip)); | |
3858 pdip = mdi_pi_get_phci(pip); | |
3859 cpath = kmem_alloc(MAXPATHLEN, KM_SLEEP); | |
3860 dpath = kmem_alloc(MAXPATHLEN, KM_SLEEP); | |
3861 vhci_log(CE_NOTE, ddi_get_parent(dip), "!%s" | |
3862 " (%s%d): path %s (%s%d) target address %s" | |
3863 " is now STANDBY because of" | |
3864 " an externally initiated failover", | |
3865 ddi_pathname(dip, cpath), | |
3866 ddi_driver_name(dip), | |
3867 ddi_get_instance(dip), | |
3868 ddi_pathname(pdip, dpath), | |
3869 ddi_driver_name(pdip), | |
3870 ddi_get_instance(pdip), | |
3871 mdi_pi_get_addr(pip)); | |
3872 kmem_free(cpath, MAXPATHLEN); | |
3873 kmem_free(dpath, MAXPATHLEN); | |
3874 mdi_pi_set_state(pip, | |
3875 MDI_PATHINFO_STATE_STANDBY); | |
3876 mdi_pi_set_preferred(pip, | |
3877 opinfo.opinfo_preferred); | |
3878 mutex_enter(&vlun->svl_mutex); | |
3879 if (vlun->svl_active_pclass != NULL) { | |
3880 if (strcmp(vlun->svl_active_pclass, | |
3881 opinfo.opinfo_path_attr) == 0) { | |
3882 kmem_free(vlun-> | |
3883 svl_active_pclass, | |
3884 strlen(vlun-> | |
3885 svl_active_pclass)+1); | |
3886 vlun->svl_active_pclass = NULL; | |
3887 } | |
3888 } | |
3889 mutex_exit(&vlun->svl_mutex); | |
3890 } | |
3891 (void) mdi_prop_free(pclass); | |
3892 sps = mdi_select_path(dip, NULL, | |
7461
1c206c17e7a2
6649625 MPxIO not trying on all available paths on device and path failures to storage
Sheshadri Vasudevan <Sheshadri.Vasudevan@Sun.COM>
parents:
7399
diff
changeset
|
3893 (MDI_SELECT_ONLINE_PATH | MDI_SELECT_STANDBY_PATH | |
1c206c17e7a2
6649625 MPxIO not trying on all available paths on device and path failures to storage
Sheshadri Vasudevan <Sheshadri.Vasudevan@Sun.COM>
parents:
7399
diff
changeset
|
3894 MDI_SELECT_NO_PREFERRED), pip, &npip); |
4851 | 3895 mdi_rele_path(pip); |
3896 | |
3897 } while ((npip != NULL) && (sps == MDI_SUCCESS)); | |
3898 | |
3899 /* | |
3900 * Check to see if this vlun has an active SCSI-II RESERVE. If so | |
3901 * clear the reservation by sending a reset, so the host doesn't | |
3902 * receive a reservation conflict. | |
3903 * Reset VLUN_RESERVE_ACTIVE_FLG for this vlun. Also notify ssd | |
3904 * of the reset, explicitly. | |
3905 */ | |
3906 if (vlun->svl_flags & VLUN_RESERVE_ACTIVE_FLG) { | |
3907 if (reserve_conflict && (vlun->svl_xlf_capable == 0)) { | |
3908 (void) vhci_recovery_reset(vlun, | |
3909 &svp->svp_psd->sd_address, FALSE, | |
3910 VHCI_DEPTH_TARGET); | |
3911 } | |
3912 vlun->svl_flags &= ~VLUN_RESERVE_ACTIVE_FLG; | |
3913 mutex_enter(&vhci->vhci_mutex); | |
3914 scsi_hba_reset_notify_callback(&vhci->vhci_mutex, | |
3915 &vhci->vhci_reset_notify_listf); | |
3916 mutex_exit(&vhci->vhci_mutex); | |
3917 } | |
3918 if (vlun->svl_flags & VLUN_UPDATE_TPG) { | |
3919 /* | |
3920 * Update the AccessState of related MP-API TPGs | |
3921 */ | |
3922 (void) vhci_mpapi_update_tpg_acc_state_for_lu(vhci, vlun); | |
3923 vlun->svl_flags &= ~VLUN_UPDATE_TPG; | |
3924 } | |
3925 done: | |
3926 if (vlun->svl_efo_update_path) { | |
3927 vlun->svl_efo_update_path = 0; | |
3928 vhci_efo_done(vlun->svl_swarg); | |
3929 vlun->svl_swarg = 0; | |
3930 } | |
3931 VHCI_RELEASE_LUN(vlun); | |
3932 } | |
3933 | |
3934 /* ARGSUSED */ | |
3935 static int | |
3936 vhci_pathinfo_init(dev_info_t *vdip, mdi_pathinfo_t *pip, int flags) | |
3937 { | |
3938 scsi_hba_tran_t *hba = NULL; | |
3939 struct scsi_device *psd = NULL; | |
3940 scsi_vhci_lun_t *vlun = NULL; | |
3941 dev_info_t *pdip = NULL; | |
3942 dev_info_t *tgt_dip; | |
3943 struct scsi_vhci *vhci; | |
3944 char *guid; | |
3945 scsi_vhci_priv_t *svp = NULL; | |
3946 int rval = MDI_FAILURE; | |
3947 int vlun_alloced = 0; | |
3948 | |
3949 ASSERT(vdip != NULL); | |
3950 ASSERT(pip != NULL); | |
3951 | |
3952 vhci = ddi_get_soft_state(vhci_softstate, ddi_get_instance(vdip)); | |
3953 ASSERT(vhci != NULL); | |
3954 | |
3955 pdip = mdi_pi_get_phci(pip); | |
3956 ASSERT(pdip != NULL); | |
3957 | |
3958 hba = ddi_get_driver_private(pdip); | |
3959 ASSERT(hba != NULL); | |
3960 | |
3961 tgt_dip = mdi_pi_get_client(pip); | |
3962 ASSERT(tgt_dip != NULL); | |
3963 | |
3964 if (ddi_prop_lookup_string(DDI_DEV_T_ANY, tgt_dip, PROPFLAGS, | |
3965 MDI_CLIENT_GUID_PROP, &guid) != DDI_SUCCESS) { | |
3966 VHCI_DEBUG(1, (CE_WARN, NULL, | |
3967 "vhci_pathinfo_init: lun guid property failed")); | |
3968 goto failure; | |
3969 } | |
3970 | |
3971 vlun = vhci_lun_lookup_alloc(tgt_dip, guid, &vlun_alloced); | |
3972 ddi_prop_free(guid); | |
3973 | |
3974 vlun->svl_dip = tgt_dip; | |
3975 | |
3976 svp = kmem_zalloc(sizeof (*svp), KM_SLEEP); | |
3977 svp->svp_svl = vlun; | |
3978 | |
3979 vlun->svl_lb_policy_save = mdi_get_lb_policy(tgt_dip); | |
3980 mutex_init(&svp->svp_mutex, NULL, MUTEX_DRIVER, NULL); | |
3981 cv_init(&svp->svp_cv, NULL, CV_DRIVER, NULL); | |
3982 | |
3983 psd = kmem_zalloc(sizeof (*psd), KM_SLEEP); | |
3984 mutex_init(&psd->sd_mutex, NULL, MUTEX_DRIVER, NULL); | |
3985 | |
3986 /* | |
3987 * Clone transport structure if requested, so | |
3988 * Self enumerating HBAs always need to use cloning | |
3989 */ | |
3990 | |
3991 if (hba->tran_hba_flags & SCSI_HBA_TRAN_CLONE) { | |
3992 scsi_hba_tran_t *clone = | |
3993 kmem_alloc(sizeof (scsi_hba_tran_t), KM_SLEEP); | |
3994 bcopy(hba, clone, sizeof (scsi_hba_tran_t)); | |
3995 hba = clone; | |
3996 hba->tran_sd = psd; | |
3997 } else { | |
3998 ASSERT(hba->tran_sd == NULL); | |
3999 } | |
4000 psd->sd_dev = tgt_dip; | |
4001 psd->sd_address.a_hba_tran = hba; | |
4002 psd->sd_private = (caddr_t)pip; | |
4003 svp->svp_psd = psd; | |
4004 mdi_pi_set_vhci_private(pip, (caddr_t)svp); | |
4005 | |
4006 /* | |
4007 * call hba's target init entry point if it exists | |
4008 */ | |
4009 if (hba->tran_tgt_init != NULL) { | |
4010 if ((rval = (*hba->tran_tgt_init)(pdip, tgt_dip, | |
4011 hba, psd)) != DDI_SUCCESS) { | |
4012 VHCI_DEBUG(1, (CE_WARN, pdip, | |
4013 "!vhci_pathinfo_init: tran_tgt_init failed for " | |
4014 "path=0x%p rval=%x", (void *)pip, rval)); | |
4015 goto failure; | |
4016 } | |
4017 } | |
4018 | |
4019 svp->svp_new_path = 1; | |
4020 | |
4021 psd->sd_inq = NULL; | |
4022 | |
4023 VHCI_DEBUG(4, (CE_NOTE, NULL, "!vhci_pathinfo_init: path:%p\n", | |
4024 (void *)pip)); | |
4025 return (MDI_SUCCESS); | |
4026 | |
4027 failure: | |
4028 if (psd) { | |
4029 mutex_destroy(&psd->sd_mutex); | |
4030 kmem_free(psd, sizeof (*psd)); | |
4031 } | |
4032 if (svp) { | |
4033 mdi_pi_set_vhci_private(pip, NULL); | |
4034 mutex_destroy(&svp->svp_mutex); | |
4035 cv_destroy(&svp->svp_cv); | |
4036 kmem_free(svp, sizeof (*svp)); | |
4037 } | |
4038 if (hba && hba->tran_hba_flags & SCSI_HBA_TRAN_CLONE) | |
4039 kmem_free(hba, sizeof (scsi_hba_tran_t)); | |
4040 | |
4041 if (vlun_alloced) | |
4042 vhci_lun_free(tgt_dip); | |
4043 | |
4044 return (rval); | |
4045 } | |
4046 | |
4047 /* ARGSUSED */ | |
4048 static int | |
4049 vhci_pathinfo_uninit(dev_info_t *vdip, mdi_pathinfo_t *pip, int flags) | |
4050 { | |
4051 scsi_hba_tran_t *hba = NULL; | |
4052 struct scsi_device *psd = NULL; | |
4053 dev_info_t *pdip = NULL; | |
4054 dev_info_t *cdip = NULL; | |
4055 scsi_vhci_priv_t *svp = NULL; | |
4056 | |
4057 ASSERT(vdip != NULL); | |
4058 ASSERT(pip != NULL); | |
4059 | |
4060 pdip = mdi_pi_get_phci(pip); | |
4061 ASSERT(pdip != NULL); | |
4062 | |
4063 cdip = mdi_pi_get_client(pip); | |
4064 ASSERT(cdip != NULL); | |
4065 | |
4066 hba = ddi_get_driver_private(pdip); | |
4067 ASSERT(hba != NULL); | |
4068 | |
4069 vhci_mpapi_set_path_state(vdip, pip, MP_DRVR_PATH_STATE_REMOVED); | |
4070 svp = (scsi_vhci_priv_t *)mdi_pi_get_vhci_private(pip); | |
4071 if (svp == NULL) { | |
4072 /* path already freed. Nothing to do. */ | |
4073 return (MDI_SUCCESS); | |
4074 } | |
4075 | |
4076 psd = svp->svp_psd; | |
4077 ASSERT(psd != NULL); | |
4078 | |
4079 if (hba->tran_hba_flags & SCSI_HBA_TRAN_CLONE) { | |
4080 hba = psd->sd_address.a_hba_tran; | |
4081 ASSERT(hba->tran_hba_flags & SCSI_HBA_TRAN_CLONE); | |
4082 ASSERT(hba->tran_sd == psd); | |
4083 } else { | |
4084 ASSERT(hba->tran_sd == NULL); | |
4085 } | |
4086 | |
4087 if (hba->tran_tgt_free != NULL) { | |
4088 (*hba->tran_tgt_free) (pdip, cdip, hba, psd); | |
4089 } | |
4090 mutex_destroy(&psd->sd_mutex); | |
4091 if (hba->tran_hba_flags & SCSI_HBA_TRAN_CLONE) { | |
4092 kmem_free(hba, sizeof (*hba)); | |
4093 } | |
4094 | |
4095 mdi_pi_set_vhci_private(pip, NULL); | |
4096 kmem_free((caddr_t)psd, sizeof (*psd)); | |
4097 | |
4098 mutex_destroy(&svp->svp_mutex); | |
4099 cv_destroy(&svp->svp_cv); | |
4100 kmem_free((caddr_t)svp, sizeof (*svp)); | |
4101 | |
4102 /* | |
4103 * If this is the last path to the client, | |
4104 * then free up the vlun as well. | |
4105 */ | |
4106 if (mdi_client_get_path_count(cdip) == 1) { | |
4107 vhci_lun_free(cdip); | |
4108 } | |
4109 | |
4110 VHCI_DEBUG(4, (CE_NOTE, NULL, "!vhci_pathinfo_uninit: path=0x%p\n", | |
4111 (void *)pip)); | |
4112 return (MDI_SUCCESS); | |
4113 } | |
4114 | |
4115 /* ARGSUSED */ | |
4116 static int | |
4117 vhci_pathinfo_state_change(dev_info_t *vdip, mdi_pathinfo_t *pip, | |
4118 mdi_pathinfo_state_t state, uint32_t ext_state, int flags) | |
4119 { | |
4120 int rval = MDI_SUCCESS; | |
4121 scsi_vhci_priv_t *svp; | |
4122 scsi_vhci_lun_t *vlun; | |
4123 int held; | |
4124 int op = (flags & 0xf00) >> 8; | |
4125 struct scsi_vhci *vhci; | |
4126 | |
4127 vhci = ddi_get_soft_state(vhci_softstate, ddi_get_instance(vdip)); | |
4128 | |
4129 if (flags & MDI_EXT_STATE_CHANGE) { | |
4130 /* | |
4131 * We do not want to issue any commands down the path in case | |
4132 * sync flag is set. Lower layers might not be ready to accept | |
4133 * any I/O commands. | |
4134 */ | |
4135 if (op == DRIVER_DISABLE) | |
4136 return (MDI_SUCCESS); | |
4137 | |
4138 svp = (scsi_vhci_priv_t *)mdi_pi_get_vhci_private(pip); | |
4139 if (svp == NULL) { | |
4140 return (MDI_FAILURE); | |
4141 } | |
4142 vlun = svp->svp_svl; | |
4143 | |
4144 if (flags & MDI_BEFORE_STATE_CHANGE) { | |
4145 /* | |
4146 * Hold the LUN. | |
4147 */ | |
4148 VHCI_HOLD_LUN(vlun, VH_SLEEP, held); | |
4149 if (flags & MDI_DISABLE_OP) { | |
4150 /* | |
4151 * Issue scsi reset if it happens to be | |
4152 * reserved path. | |
4153 */ | |
4154 if (vlun->svl_flags & VLUN_RESERVE_ACTIVE_FLG) { | |
4155 /* | |
4156 * if reservation pending on | |
4157 * this path, dont' mark the | |
4158 * path busy | |
4159 */ | |
4160 if (op == DRIVER_DISABLE_TRANSIENT) { | |
4161 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
4162 "!vhci_pathinfo" | |
4163 "_state_change (pip:%p): " | |
4164 " reservation: fail busy\n", | |
4165 (void *)pip)); | |
4166 return (MDI_FAILURE); | |
4167 } | |
4168 if (pip == vlun->svl_resrv_pip) { | |
4169 if (vhci_recovery_reset( | |
4170 svp->svp_svl, | |
4171 &svp->svp_psd->sd_address, | |
4172 TRUE, | |
4173 VHCI_DEPTH_TARGET) == 0) { | |
4174 VHCI_DEBUG(1, | |
4175 (CE_NOTE, NULL, | |
4176 "!vhci_pathinfo" | |
4177 "_state_change " | |
4178 " (pip:%p): " | |
4179 "reset failed, " | |
4180 "give up!\n", | |
4181 (void *)pip)); | |
4182 } | |
4183 vlun->svl_flags &= | |
4184 ~VLUN_RESERVE_ACTIVE_FLG; | |
4185 } | |
4186 } | |
4187 } else if (flags & MDI_ENABLE_OP) { | |
4188 if (((vhci->vhci_conf_flags & | |
4189 VHCI_CONF_FLAGS_AUTO_FAILBACK) == | |
4190 VHCI_CONF_FLAGS_AUTO_FAILBACK) && | |
4191 MDI_PI_IS_USER_DISABLE(pip) && | |
4192 MDI_PI_IS_STANDBY(pip)) { | |
4193 struct scsi_failover_ops *fo; | |
4194 char *best_pclass, *pclass = NULL; | |
4195 int best_class, rv; | |
4196 /* | |
4197 * Failback if enabling a standby path | |
4198 * and it is the primary class or | |
4199 * preferred class | |
4200 */ | |
4201 best_class = mdi_pi_get_preferred(pip); | |
4202 if (best_class == 0) { | |
4203 /* | |
4204 * if not preferred - compare | |
4205 * path-class with class | |
4206 */ | |
4207 fo = vlun->svl_fops; | |
6941
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
rralphs
parents:
6777
diff
changeset
|
4208 (void) fo->sfo_pathclass_next( |
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
rralphs
parents:
6777
diff
changeset
|
4209 NULL, &best_pclass, |
4851 | 4210 vlun->svl_fops_ctpriv); |
4211 pclass = NULL; | |
4212 rv = mdi_prop_lookup_string(pip, | |
4213 "path-class", &pclass); | |
4214 if (rv != MDI_SUCCESS || | |
4215 pclass == NULL) { | |
4216 vhci_log(CE_NOTE, vdip, | |
4217 "!path-class " | |
4218 " lookup " | |
4219 "failed. rv: %d" | |
4220 "class: %p", rv, | |
4221 (void *)pclass); | |
4222 } else if (strncmp(pclass, | |
4223 best_pclass, | |
4224 strlen(best_pclass)) == 0) { | |
4225 best_class = 1; | |
4226 } | |
4227 if (rv == MDI_SUCCESS && | |
4228 pclass != NULL) { | |
4229 rv = mdi_prop_free( | |
4230 pclass); | |
4231 if (rv != | |
4232 DDI_PROP_SUCCESS) { | |
4233 vhci_log( | |
4234 CE_NOTE, | |
4235 vdip, | |
4236 "!path-" | |
4237 "class" | |
4238 " free" | |
4239 " failed" | |
4240 " rv: %d" | |
4241 " class: " | |
4242 "%p", | |
4243 rv, | |
4244 (void *) | |
4245 pclass); | |
4246 } | |
4247 } | |
4248 } | |
4249 if (best_class == 1) { | |
4250 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
4251 "preferred path: %p " | |
4252 "USER_DISABLE->USER_ENABLE " | |
4253 "transition for lun %s\n", | |
4254 (void *)pip, | |
4255 vlun->svl_lun_wwn)); | |
4256 (void) taskq_dispatch( | |
4257 vhci->vhci_taskq, | |
4258 vhci_initiate_auto_failback, | |
4259 (void *) vlun, KM_SLEEP); | |
4260 } | |
4261 } | |
4262 /* | |
4263 * if PGR is active, revalidate key and | |
4264 * register on this path also, if key is | |
4265 * still valid | |
4266 */ | |
4267 sema_p(&vlun->svl_pgr_sema); | |
4268 if (vlun->svl_pgr_active) | |
4269 (void) | |
4270 vhci_pgr_validate_and_register(svp); | |
4271 sema_v(&vlun->svl_pgr_sema); | |
4272 /* | |
4273 * Inform target driver about any | |
4274 * reservations to be reinstated if target | |
4275 * has dropped reservation during the busy | |
4276 * period. | |
4277 */ | |
4278 mutex_enter(&vhci->vhci_mutex); | |
4279 scsi_hba_reset_notify_callback( | |
4280 &vhci->vhci_mutex, | |
4281 &vhci->vhci_reset_notify_listf); | |
4282 mutex_exit(&vhci->vhci_mutex); | |
4283 } | |
4284 } | |
4285 if (flags & MDI_AFTER_STATE_CHANGE) { | |
4286 if (flags & MDI_ENABLE_OP) { | |
4287 mutex_enter(&vhci_global_mutex); | |
4288 cv_broadcast(&vhci_cv); | |
4289 mutex_exit(&vhci_global_mutex); | |
4290 } | |
4291 if (vlun->svl_setcap_done) { | |
4292 (void) vhci_pHCI_cap(&svp->svp_psd->sd_address, | |
4293 "sector-size", vlun->svl_sector_size, | |
4294 1, pip); | |
4295 } | |
4296 | |
4297 /* | |
4298 * Release the LUN | |
4299 */ | |
4300 VHCI_RELEASE_LUN(vlun); | |
4301 | |
4302 /* | |
4303 * Path transition is complete. | |
4304 * Run callback to indicate target driver to | |
4305 * retry to prevent IO starvation. | |
4306 */ | |
4307 if (scsi_callback_id != 0) { | |
4308 ddi_run_callback(&scsi_callback_id); | |
4309 } | |
4310 } | |
4311 } else { | |
4312 switch (state) { | |
4313 case MDI_PATHINFO_STATE_ONLINE: | |
4314 rval = vhci_pathinfo_online(vdip, pip, flags); | |
4315 break; | |
4316 | |
4317 case MDI_PATHINFO_STATE_OFFLINE: | |
4318 rval = vhci_pathinfo_offline(vdip, pip, flags); | |
4319 break; | |
4320 | |
4321 default: | |
4322 break; | |
4323 } | |
4324 /* | |
4325 * Path transition is complete. | |
4326 * Run callback to indicate target driver to | |
4327 * retry to prevent IO starvation. | |
4328 */ | |
4329 if ((rval == MDI_SUCCESS) && (scsi_callback_id != 0)) { | |
4330 ddi_run_callback(&scsi_callback_id); | |
4331 } | |
4332 return (rval); | |
4333 } | |
4334 | |
4335 return (MDI_SUCCESS); | |
4336 } | |
4337 | |
4338 /* | |
4339 * Parse the mpxio load balancing options. The datanameptr | |
4340 * will point to a string containing the load-balance-options value. | |
4341 * The load-balance-options value will be a property that | |
4342 * defines the load-balance algorithm and any arguments to that | |
4343 * algorithm. | |
4344 * For example: | |
4345 * device-type-mpxio-options-list= | |
4346 * "device-type=SUN SENA", "load-balance-options=logical-block-options" | |
4347 * "device-type=SUN SE6920", "round-robin-options"; | |
4348 * logical-block-options="load-balance=logical-block", "region-size=15"; | |
4349 * round-robin-options="load-balance=round-robin"; | |
4350 * | |
4351 * If the load-balance is not defined the load balance algorithm will | |
4352 * default to the global setting. There will be default values assigned | |
4353 * to the arguments (region-size=18) and if an argument is one | |
4354 * that is not known, it will be ignored. | |
4355 */ | |
4356 static void | |
4357 vhci_parse_mpxio_lb_options(dev_info_t *dip, dev_info_t *cdip, | |
4358 caddr_t datanameptr) | |
4359 { | |
4360 char *dataptr, *next_entry; | |
4361 caddr_t config_list = NULL; | |
4362 int config_list_len = 0, list_len = 0; | |
4363 int region_size = -1; | |
4364 client_lb_t load_balance; | |
4365 | |
4366 if (ddi_getlongprop(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS, datanameptr, | |
4367 (caddr_t)&config_list, &config_list_len) != DDI_PROP_SUCCESS) { | |
4368 return; | |
4369 } | |
4370 | |
4371 list_len = config_list_len; | |
4372 next_entry = config_list; | |
4373 while (config_list_len > 0) { | |
4374 dataptr = next_entry; | |
4375 | |
4376 if (strncmp(mdi_load_balance, dataptr, | |
4377 strlen(mdi_load_balance)) == 0) { | |
4378 /* get the load-balance scheme */ | |
4379 dataptr += strlen(mdi_load_balance) + 1; | |
4380 if (strcmp(dataptr, LOAD_BALANCE_PROP_RR) == 0) { | |
4381 (void) mdi_set_lb_policy(cdip, LOAD_BALANCE_RR); | |
4382 load_balance = LOAD_BALANCE_RR; | |
4383 } else if (strcmp(dataptr, | |
4384 LOAD_BALANCE_PROP_LBA) == 0) { | |
4385 (void) mdi_set_lb_policy(cdip, | |
4386 LOAD_BALANCE_LBA); | |
4387 load_balance = LOAD_BALANCE_LBA; | |
4388 } else if (strcmp(dataptr, | |
4389 LOAD_BALANCE_PROP_NONE) == 0) { | |
4390 (void) mdi_set_lb_policy(cdip, | |
4391 LOAD_BALANCE_NONE); | |
4392 load_balance = LOAD_BALANCE_NONE; | |
4393 } | |
4394 } else if (strncmp(dataptr, LOGICAL_BLOCK_REGION_SIZE, | |
4395 strlen(LOGICAL_BLOCK_REGION_SIZE)) == 0) { | |
4396 int i = 0; | |
4397 char *ptr; | |
4398 char *tmp; | |
4399 | |
4400 tmp = dataptr + (strlen(LOGICAL_BLOCK_REGION_SIZE) + 1); | |
4401 /* check for numeric value */ | |
4402 for (ptr = tmp; i < strlen(tmp); i++, ptr++) { | |
4403 if (!isdigit(*ptr)) { | |
4404 cmn_err(CE_WARN, | |
4405 "Illegal region size: %s." | |
4406 " Setting to default value: %d", | |
4407 tmp, | |
4408 LOAD_BALANCE_DEFAULT_REGION_SIZE); | |
4409 region_size = | |
4410 LOAD_BALANCE_DEFAULT_REGION_SIZE; | |
4411 break; | |
4412 } | |
4413 } | |
4414 if (i >= strlen(tmp)) { | |
4415 region_size = stoi(&tmp); | |
4416 } | |
4417 (void) mdi_set_lb_region_size(cdip, region_size); | |
4418 } | |
4419 config_list_len -= (strlen(next_entry) + 1); | |
4420 next_entry += strlen(next_entry) + 1; | |
4421 } | |
4422 #ifdef DEBUG | |
4423 if ((region_size >= 0) && (load_balance != LOAD_BALANCE_LBA)) { | |
4424 VHCI_DEBUG(1, (CE_NOTE, dip, | |
4425 "!vhci_parse_mpxio_lb_options: region-size: %d" | |
4426 "only valid for load-balance=logical-block\n", | |
4427 region_size)); | |
4428 } | |
4429 #endif | |
4430 if ((region_size == -1) && (load_balance == LOAD_BALANCE_LBA)) { | |
4431 VHCI_DEBUG(1, (CE_NOTE, dip, | |
4432 "!vhci_parse_mpxio_lb_options: No region-size" | |
4433 " defined load-balance=logical-block." | |
4434 " Default to: %d\n", LOAD_BALANCE_DEFAULT_REGION_SIZE)); | |
4435 (void) mdi_set_lb_region_size(cdip, | |
4436 LOAD_BALANCE_DEFAULT_REGION_SIZE); | |
4437 } | |
4438 if (list_len > 0) { | |
4439 kmem_free(config_list, list_len); | |
4440 } | |
4441 } | |
4442 | |
4443 /* | |
4444 * Parse the device-type-mpxio-options-list looking for the key of | |
4445 * "load-balance-options". If found, parse the load balancing options. | |
4446 * Check the comment of the vhci_get_device_type_mpxio_options() | |
4447 * for the device-type-mpxio-options-list. | |
4448 */ | |
4449 static void | |
4450 vhci_parse_mpxio_options(dev_info_t *dip, dev_info_t *cdip, | |
4451 caddr_t datanameptr, int list_len) | |
4452 { | |
4453 char *dataptr; | |
4454 int len; | |
4455 | |
4456 /* | |
4457 * get the data list | |
4458 */ | |
4459 dataptr = datanameptr; | |
4460 len = 0; | |
4461 while (len < list_len && | |
4462 strncmp(dataptr, DEVICE_TYPE_STR, strlen(DEVICE_TYPE_STR)) | |
4463 != 0) { | |
4464 if (strncmp(dataptr, LOAD_BALANCE_OPTIONS, | |
4465 strlen(LOAD_BALANCE_OPTIONS)) == 0) { | |
4466 len += strlen(LOAD_BALANCE_OPTIONS) + 1; | |
4467 dataptr += strlen(LOAD_BALANCE_OPTIONS) + 1; | |
4468 vhci_parse_mpxio_lb_options(dip, cdip, dataptr); | |
4469 } | |
4470 len += strlen(dataptr) + 1; | |
4471 dataptr += strlen(dataptr) + 1; | |
4472 } | |
4473 } | |
4474 | |
4475 /* | |
4476 * Check the inquriy string returned from the device wiith the device-type | |
4477 * Check for the existence of the device-type-mpxio-options-list and | |
4478 * if found parse the list checking for a match with the device-type | |
4479 * value and the inquiry string returned from the device. If a match | |
4480 * is found, parse the mpxio options list. The format of the | |
4481 * device-type-mpxio-options-list is: | |
4482 * device-type-mpxio-options-list= | |
4483 * "device-type=SUN SENA", "load-balance-options=logical-block-options" | |
4484 * "device-type=SUN SE6920", "round-robin-options"; | |
4485 * logical-block-options="load-balance=logical-block", "region-size=15"; | |
4486 * round-robin-options="load-balance=round-robin"; | |
4487 */ | |
4488 void | |
4489 vhci_get_device_type_mpxio_options(dev_info_t *dip, dev_info_t *cdip, | |
4490 struct scsi_device *devp) | |
4491 { | |
4492 | |
4493 caddr_t config_list = NULL; | |
4494 caddr_t vidptr, datanameptr; | |
4495 int vidlen, dupletlen = 0; | |
4496 int config_list_len = 0, len; | |
4497 struct scsi_inquiry *inq = devp->sd_inq; | |
4498 | |
4499 /* | |
4500 * look up the device-type-mpxio-options-list and walk thru | |
4501 * the list compare the vendor ids of the earlier inquiry command and | |
4502 * with those vids in the list if there is a match, lookup | |
4503 * the mpxio-options value | |
4504 */ | |
4505 if (ddi_getlongprop(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS, | |
4506 MPXIO_OPTIONS_LIST, | |
4507 (caddr_t)&config_list, &config_list_len) == DDI_PROP_SUCCESS) { | |
4508 | |
4509 /* | |
4510 * Compare vids in each duplet - if it matches, | |
4511 * parse the mpxio options list. | |
4512 */ | |
4513 for (len = config_list_len, vidptr = config_list; len > 0; | |
4514 len -= dupletlen) { | |
4515 | |
4516 dupletlen = 0; | |
4517 | |
4518 if (strlen(vidptr) != 0 && | |
4519 strncmp(vidptr, DEVICE_TYPE_STR, | |
4520 strlen(DEVICE_TYPE_STR)) == 0) { | |
4521 /* point to next duplet */ | |
4522 datanameptr = vidptr + strlen(vidptr) + 1; | |
4523 /* add len of this duplet */ | |
4524 dupletlen += strlen(vidptr) + 1; | |
4525 /* get to device type */ | |
4526 vidptr += strlen(DEVICE_TYPE_STR) + 1; | |
4527 vidlen = strlen(vidptr); | |
4528 if ((vidlen != 0) && | |
4529 bcmp(inq->inq_vid, vidptr, vidlen) == 0) { | |
4530 vhci_parse_mpxio_options(dip, cdip, | |
4531 datanameptr, len - dupletlen); | |
4532 break; | |
4533 } | |
4534 /* get to next duplet */ | |
4535 vidptr += strlen(vidptr) + 1; | |
4536 } | |
4537 /* get to the next device-type */ | |
4538 while (len - dupletlen > 0 && | |
4539 strlen(vidptr) != 0 && | |
4540 strncmp(vidptr, DEVICE_TYPE_STR, | |
4541 strlen(DEVICE_TYPE_STR)) != 0) { | |
4542 dupletlen += strlen(vidptr) + 1; | |
4543 vidptr += strlen(vidptr) + 1; | |
4544 } | |
4545 } | |
4546 if (config_list_len > 0) { | |
4547 kmem_free(config_list, config_list_len); | |
4548 } | |
4549 } | |
4550 } | |
4551 | |
4552 static int | |
4553 vhci_update_pathinfo(struct scsi_device *psd, mdi_pathinfo_t *pip, | |
4554 struct scsi_failover_ops *fo, | |
4555 scsi_vhci_lun_t *vlun, | |
4556 struct scsi_vhci *vhci) | |
4557 { | |
4558 struct scsi_path_opinfo opinfo; | |
4559 char *pclass, *best_pclass; | |
4560 | |
6941
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
rralphs
parents:
6777
diff
changeset
|
4561 if (fo->sfo_path_get_opinfo(psd, &opinfo, vlun->svl_fops_ctpriv) != 0) { |
4851 | 4562 VHCI_DEBUG(1, (CE_NOTE, NULL, "!vhci_update_pathinfo: " |
4563 "Failed to get operation info for path:%p\n", (void *)pip)); | |
4564 return (MDI_FAILURE); | |
4565 } | |
4566 /* set the xlf capable flag in the vlun for future use */ | |
4567 vlun->svl_xlf_capable = opinfo.opinfo_xlf_capable; | |
4568 (void) mdi_prop_update_string(pip, "path-class", | |
4569 opinfo.opinfo_path_attr); | |
4570 | |
4571 pclass = opinfo.opinfo_path_attr; | |
4572 if (opinfo.opinfo_path_state == SCSI_PATH_ACTIVE) { | |
4573 mutex_enter(&vlun->svl_mutex); | |
4574 if (vlun->svl_active_pclass != NULL) { | |
4575 if (strcmp(vlun->svl_active_pclass, pclass) != 0) { | |
4576 mutex_exit(&vlun->svl_mutex); | |
4577 /* | |
4578 * Externally initiated failover has happened; | |
4579 * force the path state to be STANDBY/ONLINE, | |
4580 * next IO will trigger failover and thus | |
4581 * sync-up the pathstates. Reason we don't | |
4582 * sync-up immediately by invoking | |
4583 * vhci_update_pathstates() is because it | |
4584 * needs a VHCI_HOLD_LUN() and we don't | |
4585 * want to block here. | |
4586 * | |
4587 * Further, if the device is an ALUA device, | |
4588 * then failure to exactly match 'pclass' and | |
4589 * 'svl_active_pclass'(as is the case here) | |
4590 * indicates that the currently active path | |
4591 * is a 'non-optimized' path - which means | |
4592 * that 'svl_active_pclass' needs to be | |
4593 * replaced with opinfo.opinfo_path_state | |
4594 * value. | |
4595 */ | |
4596 | |
4597 if (SCSI_FAILOVER_IS_TPGS(vlun->svl_fops)) { | |
4598 char *tptr; | |
4599 | |
4600 /* | |
4601 * The device is ALUA compliant. The | |
4602 * state need to be changed to online | |
4603 * rather than standby state which is | |
4604 * done typically for a asymmetric | |
4605 * device that is non ALUA compliant. | |
4606 */ | |
4607 mdi_pi_set_state(pip, | |
4608 MDI_PATHINFO_STATE_ONLINE); | |
4609 tptr = kmem_alloc(strlen | |
4610 (opinfo.opinfo_path_attr)+1, | |
4611 KM_SLEEP); | |
4612 (void) strlcpy(tptr, | |
4613 opinfo.opinfo_path_attr, | |
4614 (strlen(opinfo.opinfo_path_attr) | |
4615 +1)); | |
4616 mutex_enter(&vlun->svl_mutex); | |
4617 kmem_free(vlun->svl_active_pclass, | |
4618 strlen(vlun->svl_active_pclass)+1); | |
4619 vlun->svl_active_pclass = tptr; | |
4620 mutex_exit(&vlun->svl_mutex); | |
4621 } else { | |
4622 /* | |
4623 * Non ALUA device case. | |
4624 */ | |
4625 mdi_pi_set_state(pip, | |
4626 MDI_PATHINFO_STATE_STANDBY); | |
4627 } | |
4628 vlun->svl_fo_support = opinfo.opinfo_mode; | |
4629 mdi_pi_set_preferred(pip, | |
4630 opinfo.opinfo_preferred); | |
4631 return (MDI_SUCCESS); | |
4632 } | |
4633 } else { | |
4634 char *tptr; | |
4635 | |
4636 /* | |
4637 * lets release the mutex before we try to | |
4638 * allocate since the potential to sleep is | |
4639 * possible. | |
4640 */ | |
4641 mutex_exit(&vlun->svl_mutex); | |
4642 tptr = kmem_alloc(strlen(pclass)+1, KM_SLEEP); | |
4643 (void) strlcpy(tptr, pclass, (strlen(pclass)+1)); | |
4644 mutex_enter(&vlun->svl_mutex); | |
4645 vlun->svl_active_pclass = tptr; | |
4646 } | |
4647 mutex_exit(&vlun->svl_mutex); | |
4648 mdi_pi_set_state(pip, MDI_PATHINFO_STATE_ONLINE); | |
4649 vlun->svl_waiting_for_activepath = 0; | |
4650 } else if (opinfo.opinfo_path_state == SCSI_PATH_ACTIVE_NONOPT) { | |
4651 mutex_enter(&vlun->svl_mutex); | |
4652 if (vlun->svl_active_pclass == NULL) { | |
4653 char *tptr; | |
4654 | |
4655 mutex_exit(&vlun->svl_mutex); | |
4656 tptr = kmem_alloc(strlen(pclass)+1, KM_SLEEP); | |
4657 (void) strlcpy(tptr, pclass, (strlen(pclass)+1)); | |
4658 mutex_enter(&vlun->svl_mutex); | |
4659 vlun->svl_active_pclass = tptr; | |
4660 } | |
4661 mutex_exit(&vlun->svl_mutex); | |
4662 mdi_pi_set_state(pip, MDI_PATHINFO_STATE_ONLINE); | |
4663 vlun->svl_waiting_for_activepath = 0; | |
4664 } else if (opinfo.opinfo_path_state == SCSI_PATH_INACTIVE) { | |
4665 mutex_enter(&vlun->svl_mutex); | |
4666 if (vlun->svl_active_pclass != NULL) { | |
4667 if (strcmp(vlun->svl_active_pclass, pclass) == 0) { | |
4668 mutex_exit(&vlun->svl_mutex); | |
4669 /* | |
4670 * externally initiated failover has happened; | |
4671 * force state to ONLINE (see comment above) | |
4672 */ | |
4673 mdi_pi_set_state(pip, | |
4674 MDI_PATHINFO_STATE_ONLINE); | |
4675 vlun->svl_fo_support = opinfo.opinfo_mode; | |
4676 mdi_pi_set_preferred(pip, | |
4677 opinfo.opinfo_preferred); | |
4678 return (MDI_SUCCESS); | |
4679 } | |
4680 } | |
4681 mutex_exit(&vlun->svl_mutex); | |
4682 mdi_pi_set_state(pip, MDI_PATHINFO_STATE_STANDBY); | |
4683 | |
4684 /* | |
4685 * Initiate auto-failback, if enabled, for path if path-state | |
4686 * is transitioning from OFFLINE->STANDBY and pathclass is the | |
4687 * prefered pathclass for this storage. | |
4688 * NOTE: In case where opinfo_path_state is SCSI_PATH_ACTIVE | |
4689 * (above), where the pi state is set to STANDBY, we don't | |
4690 * initiate auto-failback as the next IO shall take care of. | |
4691 * this. See comment above. | |
4692 */ | |
6941
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
rralphs
parents:
6777
diff
changeset
|
4693 (void) fo->sfo_pathclass_next(NULL, &best_pclass, |
4851 | 4694 vlun->svl_fops_ctpriv); |
4695 if (((vhci->vhci_conf_flags & VHCI_CONF_FLAGS_AUTO_FAILBACK) == | |
4696 VHCI_CONF_FLAGS_AUTO_FAILBACK) && | |
4697 ((strcmp(pclass, best_pclass) == 0) || | |
4698 mdi_pi_get_preferred(pip) == 1) && | |
4699 ((MDI_PI_OLD_STATE(pip) == MDI_PATHINFO_STATE_OFFLINE)|| | |
4700 (MDI_PI_OLD_STATE(pip) == MDI_PATHINFO_STATE_INIT))) { | |
4701 VHCI_DEBUG(1, (CE_NOTE, NULL, "%s pathclass path: %p" | |
4702 " OFFLINE->STANDBY transition for lun %s\n", | |
4703 best_pclass, (void *)pip, vlun->svl_lun_wwn)); | |
4704 (void) taskq_dispatch(vhci->vhci_taskq, | |
4705 vhci_initiate_auto_failback, (void *) vlun, | |
4706 KM_SLEEP); | |
4707 } | |
4708 } | |
4709 vlun->svl_fo_support = opinfo.opinfo_mode; | |
4710 mdi_pi_set_preferred(pip, opinfo.opinfo_preferred); | |
4711 | |
4712 VHCI_DEBUG(8, (CE_NOTE, NULL, "vhci_update_pathinfo: opinfo_rev = %x," | |
4713 " opinfo_path_state = %x opinfo_preferred = %x, opinfo_mode = %x\n", | |
4714 opinfo.opinfo_rev, opinfo.opinfo_path_state, | |
4715 opinfo.opinfo_preferred, opinfo.opinfo_mode)); | |
4716 | |
4717 return (MDI_SUCCESS); | |
4718 } | |
4719 | |
4720 /* | |
4721 * Form the kstat name and and call mdi_pi_kstat_create() | |
4722 */ | |
4723 void | |
4724 vhci_kstat_create_pathinfo(mdi_pathinfo_t *pip) | |
4725 { | |
4726 dev_info_t *tgt_dip; | |
4727 dev_info_t *pdip; | |
4728 char *guid; | |
4729 char *target_port, *target_port_dup; | |
4730 char ks_name[KSTAT_STRLEN]; | |
4731 uint_t pid; | |
4732 int by_id; | |
4733 mod_hash_val_t hv; | |
4734 | |
4735 | |
4736 /* return if we have already allocated kstats */ | |
4737 if (mdi_pi_kstat_exists(pip)) | |
4738 return; | |
4739 | |
4740 /* | |
4741 * We need instance numbers to create a kstat name, return if we don't | |
4742 * have instance numbers assigned yet. | |
4743 */ | |
4744 tgt_dip = mdi_pi_get_client(pip); | |
4745 pdip = mdi_pi_get_phci(pip); | |
4746 if ((ddi_get_instance(tgt_dip) == -1) || (ddi_get_instance(pdip) == -1)) | |
4747 return; | |
4748 | |
4749 /* | |
4750 * A path oriented kstat has a ks_name of the form: | |
4751 * | |
4752 * <client-driver><instance>.t<pid>.<pHCI-driver><instance> | |
4753 * | |
4754 * We maintain a bidirectional 'target-port' to <pid> map, | |
4755 * called targetmap. All pathinfo nodes with the same | |
4756 * 'target-port' map to the same <pid>. The iostat(1M) code, | |
4757 * when parsing a path oriented kstat name, uses the <pid> as | |
4758 * a SCSI_VHCI_GET_TARGET_LONGNAME ioctl argument in order | |
4759 * to get the 'target-port'. For KSTAT_FLAG_PERSISTENT kstats, | |
4760 * this ioctl needs to translate a <pid> to a 'target-port' | |
4761 * even after all pathinfo nodes associated with the | |
4762 * 'target-port' have been destroyed. This is needed to support | |
4763 * consistent first-iteration activity-since-boot iostat(1M) | |
4764 * output. Because of this requirement, the mapping can't be | |
4765 * based on pathinfo information in a devinfo snapshot. | |
4766 */ | |
4767 | |
4768 /* determine 'target-port' */ | |
4769 if (mdi_prop_lookup_string(pip, | |
4770 "target-port", &target_port) == MDI_SUCCESS) { | |
4771 target_port_dup = i_ddi_strdup(target_port, KM_SLEEP); | |
4772 (void) mdi_prop_free(target_port); | |
4773 by_id = 1; | |
4774 } else { | |
4775 /* | |
4776 * If the pHCI did not set up 'target-port' on this | |
4777 * pathinfo node, assume that our client is the only | |
4778 * one with paths to the device by using the guid | |
4779 * value as the 'target-port'. Since no other client | |
4780 * will have the same guid, no other client will use | |
4781 * the same <pid>. NOTE: a client with an instance | |
4782 * number always has a guid. | |
4783 */ | |
4784 (void) ddi_prop_lookup_string(DDI_DEV_T_ANY, tgt_dip, | |
4785 PROPFLAGS, MDI_CLIENT_GUID_PROP, &guid); | |
4786 target_port_dup = i_ddi_strdup(guid, KM_SLEEP); | |
4787 ddi_prop_free(guid); | |
4788 | |
4789 /* | |
4790 * For this type of mapping we don't want the | |
4791 * <id> -> 'target-port' mapping to be made. This | |
4792 * will cause the SCSI_VHCI_GET_TARGET_LONGNAME ioctl | |
4793 * to fail, and the iostat(1M) long '-n' output will | |
4794 * still use the <pid>. We do this because we just | |
4795 * made up the 'target-port' using the guid, and we | |
4796 * don't want to expose that fact in iostat output. | |
4797 */ | |
4798 by_id = 0; | |
4799 } | |
4800 | |
4801 /* find/establish <pid> given 'target-port' */ | |
4802 mutex_enter(&vhci_targetmap_mutex); | |
4803 if (mod_hash_find(vhci_targetmap_byport, | |
4804 (mod_hash_key_t)target_port_dup, &hv) == 0) { | |
4805 pid = (int)(intptr_t)hv; /* mapping exists */ | |
4806 } else { | |
4807 pid = vhci_targetmap_pid++; /* new mapping */ | |
4808 | |
4809 (void) mod_hash_insert(vhci_targetmap_byport, | |
4810 (mod_hash_key_t)target_port_dup, | |
4811 (mod_hash_val_t)(intptr_t)pid); | |
4812 if (by_id) { | |
4813 (void) mod_hash_insert(vhci_targetmap_bypid, | |
4814 (mod_hash_key_t)(uintptr_t)pid, | |
4815 (mod_hash_val_t)(uintptr_t)target_port_dup); | |
4816 } | |
4817 target_port_dup = NULL; /* owned by hash */ | |
4818 } | |
4819 mutex_exit(&vhci_targetmap_mutex); | |
4820 | |
4821 /* form kstat name */ | |
4822 (void) snprintf(ks_name, KSTAT_STRLEN, "%s%d.t%d.%s%d", | |
4823 ddi_driver_name(tgt_dip), ddi_get_instance(tgt_dip), | |
4824 pid, ddi_driver_name(pdip), ddi_get_instance(pdip)); | |
4825 | |
4826 VHCI_DEBUG(1, (CE_NOTE, NULL, "!vhci_path_online: path:%p " | |
4827 "kstat %s: pid %x <-> port %s\n", (void *)pip, | |
4828 ks_name, pid, target_port_dup)); | |
4829 if (target_port_dup) | |
4830 kmem_free(target_port_dup, strlen(target_port_dup) + 1); | |
4831 | |
4832 /* call mdi to create kstats with the name we built */ | |
4833 (void) mdi_pi_kstat_create(pip, ks_name); | |
4834 } | |
4835 | |
4836 /* ARGSUSED */ | |
4837 static int | |
4838 vhci_pathinfo_online(dev_info_t *vdip, mdi_pathinfo_t *pip, int flags) | |
4839 { | |
4840 scsi_hba_tran_t *hba = NULL; | |
4841 struct scsi_device *psd = NULL; | |
4842 scsi_vhci_lun_t *vlun = NULL; | |
4843 dev_info_t *pdip = NULL; | |
4844 dev_info_t *tgt_dip; | |
4845 struct scsi_vhci *vhci; | |
4846 char *guid; | |
4847 struct scsi_failover *sf; | |
4848 struct scsi_failover_ops *sfo; | |
7399
9d7357dfac4a
6636264 Memory leak in vhci_pathinfo_online in Nevada build 78
wl202157@chogori
parents:
7201
diff
changeset
|
4849 char *sfo_name; |
4851 | 4850 char *override; |
4851 scsi_vhci_priv_t *svp = NULL; | |
4852 struct buf *bp; | |
4853 struct scsi_address *ap; | |
4854 struct scsi_pkt *pkt; | |
4855 int rval = MDI_FAILURE; | |
4856 uint_t inq_size = VHCI_STD_INQ_SIZE; | |
4857 mpapi_item_list_t *list_ptr; | |
4858 mpapi_lu_data_t *ld; | |
4859 | |
4860 ASSERT(vdip != NULL); | |
4861 ASSERT(pip != NULL); | |
4862 | |
4863 vhci = ddi_get_soft_state(vhci_softstate, ddi_get_instance(vdip)); | |
4864 ASSERT(vhci != NULL); | |
4865 | |
4866 pdip = mdi_pi_get_phci(pip); | |
4867 hba = ddi_get_driver_private(pdip); | |
4868 ASSERT(hba != NULL); | |
4869 | |
4870 svp = (scsi_vhci_priv_t *)mdi_pi_get_vhci_private(pip); | |
4871 ASSERT(svp != NULL); | |
4872 | |
4873 tgt_dip = mdi_pi_get_client(pip); | |
4874 ASSERT(tgt_dip != NULL); | |
4875 if (ddi_prop_lookup_string(DDI_DEV_T_ANY, tgt_dip, PROPFLAGS, | |
4876 MDI_CLIENT_GUID_PROP, &guid) != DDI_SUCCESS) { | |
4877 VHCI_DEBUG(1, (CE_WARN, NULL, "vhci_path_online: lun guid " | |
4878 "property failed")); | |
4879 goto failure; | |
4880 } | |
4881 | |
4882 vlun = vhci_lun_lookup(tgt_dip); | |
4883 ASSERT(vlun != NULL); | |
4884 | |
4885 ddi_prop_free(guid); | |
4886 | |
4887 vlun->svl_dip = mdi_pi_get_client(pip); | |
4888 ASSERT(vlun->svl_dip != NULL); | |
4889 | |
4890 psd = svp->svp_psd; | |
4891 ASSERT(psd != NULL); | |
4892 | |
4893 /* | |
6023
9adf47ae28c4
6634757 add support for the HDS midrange array subsystem
cm136836
parents:
4949
diff
changeset
|
4894 * For INQUIRY response buffer size, we use VHCI_STD_INQ_SIZE(132bytes) |
4851 | 4895 * instead of SUN_INQSIZE(48bytes) which is used in sd layer. This is |
4896 * because we could get the Vendor specific parameters(present 97th | |
4897 * byte onwards) which are required to process Vendor specific data | |
4898 * based on array type. | |
4899 * This INQUIRY buffer is freed in vhci_pathinfo_offline but NEVER | |
4900 * in a different layer like sd/phci transport. In other words, vhci | |
4901 * maintains its own copy of scsi_device and scsi_inquiry data on a | |
4902 * per-path basis. | |
4903 */ | |
4904 if (psd->sd_inq == NULL) { | |
4905 psd->sd_inq = (struct scsi_inquiry *) | |
4906 kmem_zalloc(inq_size, KM_SLEEP); | |
4907 } | |
4908 | |
4909 tgt_dip = psd->sd_dev; | |
4910 ASSERT(tgt_dip != NULL); | |
4911 | |
4912 /* | |
4913 * do inquiry to pass into probe routine; this | |
4914 * will avoid each probe routine doing scsi inquiry | |
4915 */ | |
4916 bp = getrbuf(KM_SLEEP); | |
4917 bp->b_un.b_addr = (caddr_t)psd->sd_inq; | |
4918 bp->b_flags = B_READ; | |
4919 bp->b_bcount = inq_size; | |
4920 bp->b_resid = 0; | |
4921 | |
4922 ap = &psd->sd_address; | |
4923 pkt = scsi_init_pkt(ap, NULL, bp, CDB_GROUP0, | |
4924 sizeof (struct scsi_arq_status), 0, 0, SLEEP_FUNC, NULL); | |
4925 if (pkt == NULL) { | |
4926 VHCI_DEBUG(1, (CE_NOTE, NULL, "!vhci_pathinfo_online: " | |
4927 "Inquiry init_pkt failed :%p\n", (void *)pip)); | |
4928 rval = MDI_FAILURE; | |
4929 goto failure; | |
4930 } | |
4931 pkt->pkt_cdbp[0] = SCMD_INQUIRY; | |
4932 pkt->pkt_cdbp[4] = (uchar_t)inq_size; | |
4933 pkt->pkt_time = 60; | |
4934 | |
4935 rval = vhci_do_scsi_cmd(pkt); | |
4936 scsi_destroy_pkt(pkt); | |
4937 freerbuf(bp); | |
4938 if (rval == 0) { | |
4939 VHCI_DEBUG(1, (CE_NOTE, NULL, "!vhci_pathinfo_online: " | |
4940 "Failover Inquiry failed path:%p rval:%x\n", | |
4941 (void *)pip, rval)); | |
4942 rval = MDI_FAILURE; | |
4943 goto failure; | |
4944 } | |
4945 | |
4946 /* | |
4947 * Determine if device is supported under scsi_vhci, and select | |
4948 * failover module. | |
4949 * | |
4950 * See if there is a scsi_vhci.conf file override for this devices's | |
4951 * VID/PID. The following values can be returned: | |
4952 * | |
4953 * NULL If the NULL is returned then there is no scsi_vhci.conf | |
4954 * override. For NULL, we determine the failover_ops for | |
4955 * this device by checking the sfo_device_probe entry | |
4956 * point for each 'fops' module, in order. | |
4957 * | |
4958 * NOTE: Correct operation may depend on module ordering | |
4959 * of 'specific' (failover modules that are completely | |
4960 * VID/PID table based) to 'generic' (failover modules | |
4961 * that based on T10 standards like TPGS). Currently, | |
4962 * the value of 'ddi-forceload' in scsi_vhci.conf is used | |
4963 * to establish the module list and probe order. | |
4964 * | |
4965 * "NONE" If value "NONE" is returned then there is a | |
4966 * scsi_vhci.conf VID/PID override to indicate the device | |
4967 * should not be supported under scsi_vhci (even if there | |
4968 * is an 'fops' module supporting the device). | |
4969 * | |
4970 * "<other>" If another value is returned then that value is the | |
4971 * name of the 'fops' module that should be used. | |
4972 */ | |
4973 sfo = NULL; /* "NONE" */ | |
7399
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diff
changeset
|
4974 sfo_name = NULL; |
4851 | 4975 override = scsi_get_device_type_string( |
4976 "scsi-vhci-failover-override", vdip, psd); | |
4977 | |
4978 if (override == NULL) { | |
4979 /* NULL: default: select based on sfo_device_probe results */ | |
4980 for (sf = scsi_failover_table; sf->sf_mod; sf++) { | |
4981 if ((sf->sf_sfo == NULL) || | |
6941
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6459247 scsi_vhci does not return correct value for dma-max property
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6777
diff
changeset
|
4982 sf->sf_sfo->sfo_device_probe(psd, psd->sd_inq, |
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6459247 scsi_vhci does not return correct value for dma-max property
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6777
diff
changeset
|
4983 &vlun->svl_fops_ctpriv) == SFO_DEVICE_PROBE_PHCI) |
4851 | 4984 continue; |
4985 | |
4986 /* found failover module, supported under scsi_vhci */ | |
4987 sfo = sf->sf_sfo; | |
7399
9d7357dfac4a
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7201
diff
changeset
|
4988 sfo_name = i_ddi_strdup(sfo->sfo_name, KM_SLEEP); |
4851 | 4989 break; |
4990 } | |
6941
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
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6777
diff
changeset
|
4991 } else if (strcasecmp(override, "NONE")) { |
4851 | 4992 /* !"NONE": select based on driver.conf specified name */ |
4993 for (sf = scsi_failover_table, sfo = NULL; sf->sf_mod; sf++) { | |
4994 if ((sf->sf_sfo == NULL) || | |
4995 (sf->sf_sfo->sfo_name == NULL) || | |
4996 strcmp(override, sf->sf_sfo->sfo_name)) | |
4997 continue; | |
4998 | |
4999 /* found failover module, supported under scsi_vhci */ | |
5000 sfo = sf->sf_sfo; | |
7399
9d7357dfac4a
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7201
diff
changeset
|
5001 sfo_name = kmem_alloc(strlen("conf ") + |
4851 | 5002 strlen(sfo->sfo_name) + 1, KM_SLEEP); |
7399
9d7357dfac4a
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7201
diff
changeset
|
5003 (void) sprintf(sfo_name, "conf %s", sfo->sfo_name); |
4851 | 5004 break; |
5005 } | |
5006 } | |
5007 if (override) | |
5008 kmem_free(override, strlen(override) + 1); | |
5009 | |
5010 if (sfo == NULL) { | |
5011 /* no failover module - device not supported */ | |
5012 VHCI_DEBUG(1, (CE_NOTE, vhci->vhci_dip, | |
5013 "!vhci_pathinfo_online: dev (path 0x%p) not " | |
5014 "supported\n", (void *)pip)); | |
5015 vlun->svl_not_supported = 1; | |
5016 rval = MDI_NOT_SUPPORTED; | |
5017 goto done; | |
5018 } | |
5019 | |
5020 /* failover supported for device - save failover_ops in vlun */ | |
5021 vlun->svl_fops = sfo; | |
7399
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7201
diff
changeset
|
5022 ASSERT(sfo_name != NULL); |
9d7357dfac4a
6636264 Memory leak in vhci_pathinfo_online in Nevada build 78
wl202157@chogori
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7201
diff
changeset
|
5023 /* to avoid memory leak, free the fops_name if it has already */ |
9d7357dfac4a
6636264 Memory leak in vhci_pathinfo_online in Nevada build 78
wl202157@chogori
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7201
diff
changeset
|
5024 /* been set one, a vlun has more than one path, the function */ |
9d7357dfac4a
6636264 Memory leak in vhci_pathinfo_online in Nevada build 78
wl202157@chogori
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7201
diff
changeset
|
5025 /* vhci_pathinfo_online() will be invoked when each path comes */ |
9d7357dfac4a
6636264 Memory leak in vhci_pathinfo_online in Nevada build 78
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7201
diff
changeset
|
5026 /* online, so the fops name might be set more than one times. */ |
9d7357dfac4a
6636264 Memory leak in vhci_pathinfo_online in Nevada build 78
wl202157@chogori
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7201
diff
changeset
|
5027 if (vlun->svl_fops_name) { |
9d7357dfac4a
6636264 Memory leak in vhci_pathinfo_online in Nevada build 78
wl202157@chogori
parents:
7201
diff
changeset
|
5028 kmem_free(vlun->svl_fops_name, |
9d7357dfac4a
6636264 Memory leak in vhci_pathinfo_online in Nevada build 78
wl202157@chogori
parents:
7201
diff
changeset
|
5029 strlen(vlun->svl_fops_name) + 1); |
9d7357dfac4a
6636264 Memory leak in vhci_pathinfo_online in Nevada build 78
wl202157@chogori
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7201
diff
changeset
|
5030 } |
9d7357dfac4a
6636264 Memory leak in vhci_pathinfo_online in Nevada build 78
wl202157@chogori
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7201
diff
changeset
|
5031 vlun->svl_fops_name = sfo_name; |
4851 | 5032 |
5033 /* | |
5034 * Obtain the device-type based mpxio options as specified in | |
5035 * scsi_vhci.conf file. | |
5036 * | |
5037 * NOTE: currently, the end result is a call to | |
5038 * mdi_set_lb_region_size(). | |
5039 */ | |
5040 vhci_get_device_type_mpxio_options(vdip, tgt_dip, psd); | |
5041 | |
5042 /* | |
6941
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
rralphs
parents:
6777
diff
changeset
|
5043 * The device probe or options in conf file may have set/changed the |
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
rralphs
parents:
6777
diff
changeset
|
5044 * lb policy, save the current value. |
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
rralphs
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6777
diff
changeset
|
5045 */ |
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
rralphs
parents:
6777
diff
changeset
|
5046 vlun->svl_lb_policy_save = mdi_get_lb_policy(tgt_dip); |
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
rralphs
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6777
diff
changeset
|
5047 |
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
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diff
changeset
|
5048 /* |
4851 | 5049 * if PGR is active, revalidate key and register on this path also, |
5050 * if key is still valid | |
5051 */ | |
5052 sema_p(&vlun->svl_pgr_sema); | |
5053 if (vlun->svl_pgr_active) { | |
5054 rval = vhci_pgr_validate_and_register(svp); | |
5055 if (rval != 1) { | |
5056 rval = MDI_FAILURE; | |
5057 sema_v(&vlun->svl_pgr_sema); | |
5058 goto failure; | |
5059 } | |
5060 } | |
5061 sema_v(&vlun->svl_pgr_sema); | |
5062 | |
5063 if (svp->svp_new_path) { | |
5064 /* | |
5065 * Last chance to perform any cleanup operations on this | |
5066 * new path before making this path completely online. | |
5067 */ | |
5068 svp->svp_new_path = 0; | |
5069 | |
5070 /* | |
5071 * If scsi_vhci knows the lun is alread RESERVE'd, | |
5072 * then skip the issue of RELEASE on new path. | |
5073 */ | |
5074 if ((vlun->svl_flags & VLUN_RESERVE_ACTIVE_FLG) == 0) { | |
5075 /* | |
5076 * Issue SCSI-2 RELEASE only for the first time on | |
5077 * a new path just in case the host rebooted and | |
5078 * a reservation is still pending on this path. | |
5079 * IBM Shark storage does not clear RESERVE upon | |
5080 * host reboot. | |
5081 */ | |
5082 ap = &psd->sd_address; | |
5083 pkt = scsi_init_pkt(ap, NULL, NULL, CDB_GROUP0, | |
5084 sizeof (struct scsi_arq_status), 0, 0, | |
5085 SLEEP_FUNC, NULL); | |
5086 if (pkt == NULL) { | |
5087 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
5088 "!vhci_pathinfo_online: " | |
5089 "Release init_pkt failed :%p\n", | |
5090 (void *)pip)); | |
5091 rval = MDI_FAILURE; | |
5092 goto failure; | |
5093 } | |
5094 pkt->pkt_cdbp[0] = SCMD_RELEASE; | |
5095 pkt->pkt_time = 60; | |
5096 | |
5097 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
5098 "!vhci_path_online: path:%p " | |
5099 "Issued SCSI-2 RELEASE\n", (void *)pip)); | |
5100 | |
5101 /* Ignore the return value */ | |
5102 (void) vhci_do_scsi_cmd(pkt); | |
5103 scsi_destroy_pkt(pkt); | |
5104 } | |
5105 } | |
5106 | |
5107 rval = vhci_update_pathinfo(psd, pip, sfo, vlun, vhci); | |
5108 if (rval == MDI_FAILURE) { | |
5109 goto failure; | |
5110 } | |
5111 | |
5112 /* Initialize MP-API data */ | |
5113 vhci_update_mpapi_data(vhci, vlun, pip); | |
5114 | |
5115 /* | |
5116 * MP-API also needs the Inquiry data to be maintained in the | |
5117 * mp_vendor_prop_t structure, so find the lun and update its | |
5118 * structure with this data. | |
5119 */ | |
5120 list_ptr = (mpapi_item_list_t *)vhci_get_mpapi_item(vhci, NULL, | |
5121 MP_OBJECT_TYPE_MULTIPATH_LU, (void *)vlun); | |
5122 ld = (mpapi_lu_data_t *)list_ptr->item->idata; | |
5123 if (ld != NULL) { | |
5124 bcopy(psd->sd_inq->inq_vid, ld->prop.prodInfo.vendor, 8); | |
5125 bcopy(psd->sd_inq->inq_pid, ld->prop.prodInfo.product, 16); | |
5126 bcopy(psd->sd_inq->inq_revision, ld->prop.prodInfo.revision, 4); | |
5127 } else { | |
5128 VHCI_DEBUG(1, (CE_WARN, NULL, "!vhci_pathinfo_online: " | |
5129 "mpapi_lu_data_t is NULL")); | |
5130 } | |
5131 | |
5132 /* create kstats for path */ | |
5133 vhci_kstat_create_pathinfo(pip); | |
5134 | |
5135 done: | |
5136 mutex_enter(&vhci_global_mutex); | |
5137 cv_broadcast(&vhci_cv); | |
5138 mutex_exit(&vhci_global_mutex); | |
5139 | |
5140 if (vlun->svl_setcap_done) { | |
5141 (void) vhci_pHCI_cap(ap, "sector-size", | |
5142 vlun->svl_sector_size, 1, pip); | |
5143 } | |
5144 | |
5145 VHCI_DEBUG(1, (CE_NOTE, NULL, "!vhci_path_online: path:%p\n", | |
5146 (void *)pip)); | |
5147 | |
5148 failure: | |
5149 if ((rval != MDI_SUCCESS) && psd->sd_inq) { | |
5150 kmem_free((caddr_t)psd->sd_inq, inq_size); | |
5151 psd->sd_inq = (struct scsi_inquiry *)NULL; | |
5152 } | |
5153 return (rval); | |
5154 } | |
5155 | |
5156 /* | |
5157 * path offline handler. Release all bindings that will not be | |
5158 * released by the normal packet transport/completion code path. | |
5159 * Since we don't (presently) keep any bindings alive outside of | |
5160 * the in-transport packets (which will be released on completion) | |
5161 * there is not much to do here. | |
5162 */ | |
5163 /* ARGSUSED */ | |
5164 static int | |
5165 vhci_pathinfo_offline(dev_info_t *vdip, mdi_pathinfo_t *pip, int flags) | |
5166 { | |
5167 scsi_hba_tran_t *hba = NULL; | |
5168 struct scsi_device *psd = NULL; | |
5169 dev_info_t *pdip = NULL; | |
5170 dev_info_t *cdip = NULL; | |
5171 scsi_vhci_priv_t *svp = NULL; | |
5172 uint_t inq_size = VHCI_STD_INQ_SIZE; | |
5173 | |
5174 ASSERT(vdip != NULL); | |
5175 ASSERT(pip != NULL); | |
5176 | |
5177 pdip = mdi_pi_get_phci(pip); | |
5178 ASSERT(pdip != NULL); | |
5179 if (pdip == NULL) { | |
5180 VHCI_DEBUG(1, (CE_WARN, vdip, "Invalid path 0x%p: NULL " | |
5181 "phci dip", (void *)pip)); | |
5182 return (MDI_FAILURE); | |
5183 } | |
5184 | |
5185 cdip = mdi_pi_get_client(pip); | |
5186 ASSERT(cdip != NULL); | |
5187 if (cdip == NULL) { | |
5188 VHCI_DEBUG(1, (CE_WARN, vdip, "Invalid path 0x%p: NULL " | |
5189 "client dip", (void *)pip)); | |
5190 return (MDI_FAILURE); | |
5191 } | |
5192 | |
5193 hba = ddi_get_driver_private(pdip); | |
5194 ASSERT(hba != NULL); | |
5195 | |
5196 svp = (scsi_vhci_priv_t *)mdi_pi_get_vhci_private(pip); | |
5197 if (svp == NULL) { | |
5198 /* | |
5199 * mdi_pathinfo node in INIT state can have vHCI private | |
5200 * information set to null | |
5201 */ | |
5202 VHCI_DEBUG(1, (CE_NOTE, vdip, "!vhci_pathinfo_offline: " | |
5203 "svp is NULL for pip 0x%p\n", (void *)pip)); | |
5204 return (MDI_SUCCESS); | |
5205 } | |
5206 | |
5207 psd = svp->svp_psd; | |
5208 ASSERT(psd != NULL); | |
5209 | |
5210 mutex_enter(&svp->svp_mutex); | |
5211 | |
5212 VHCI_DEBUG(1, (CE_NOTE, vdip, "!vhci_pathinfo_offline: " | |
5213 "%d cmds pending on path: 0x%p\n", svp->svp_cmds, (void *)pip)); | |
5214 while (svp->svp_cmds != 0) { | |
5215 if (cv_timedwait(&svp->svp_cv, &svp->svp_mutex, | |
5216 ddi_get_lbolt() + | |
5217 drv_usectohz(vhci_path_quiesce_timeout * 1000000)) == -1) { | |
5218 /* | |
5219 * The timeout time reached without the condition | |
5220 * being signaled. | |
5221 */ | |
5222 VHCI_DEBUG(1, (CE_NOTE, vdip, "!vhci_pathinfo_offline: " | |
5223 "Timeout reached on path 0x%p without the cond\n", | |
5224 (void *)pip)); | |
5225 VHCI_DEBUG(1, (CE_NOTE, vdip, "!vhci_pathinfo_offline: " | |
5226 "%d cmds still pending on path: 0x%p\n", | |
5227 svp->svp_cmds, (void *)pip)); | |
5228 break; | |
5229 } | |
5230 } | |
5231 mutex_exit(&svp->svp_mutex); | |
5232 | |
5233 /* | |
5234 * Check to see if this vlun has an active SCSI-II RESERVE. And this | |
5235 * is the pip for the path that has been reserved. | |
5236 * If so clear the reservation by sending a reset, so the host will not | |
5237 * get a reservation conflict. Reset the flag VLUN_RESERVE_ACTIVE_FLG | |
5238 * for this lun. Also a reset notify is sent to the target driver | |
5239 * just in case the POR check condition is cleared by some other layer | |
5240 * in the stack. | |
5241 */ | |
5242 if (svp->svp_svl->svl_flags & VLUN_RESERVE_ACTIVE_FLG) { | |
5243 if (pip == svp->svp_svl->svl_resrv_pip) { | |
5244 if (vhci_recovery_reset(svp->svp_svl, | |
5245 &svp->svp_psd->sd_address, TRUE, | |
5246 VHCI_DEPTH_TARGET) == 0) { | |
5247 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
5248 "!vhci_pathinfo_offline (pip:%p):" | |
5249 "reset failed, retrying\n", (void *)pip)); | |
5250 delay(1*drv_usectohz(1000000)); | |
5251 if (vhci_recovery_reset(svp->svp_svl, | |
5252 &svp->svp_psd->sd_address, TRUE, | |
5253 VHCI_DEPTH_TARGET) == 0) { | |
5254 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
5255 "!vhci_pathinfo_offline " | |
5256 "(pip:%p): reset failed, " | |
5257 "giving up!\n", (void *)pip)); | |
5258 } | |
5259 } | |
5260 svp->svp_svl->svl_flags &= ~VLUN_RESERVE_ACTIVE_FLG; | |
5261 } | |
5262 } | |
5263 | |
5264 mdi_pi_set_state(pip, MDI_PATHINFO_STATE_OFFLINE); | |
5265 if (psd->sd_inq) { | |
5266 kmem_free((caddr_t)psd->sd_inq, inq_size); | |
5267 psd->sd_inq = (struct scsi_inquiry *)NULL; | |
5268 } | |
5269 vhci_mpapi_set_path_state(vdip, pip, MP_DRVR_PATH_STATE_REMOVED); | |
5270 | |
5271 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
5272 "!vhci_pathinfo_offline: offlined path 0x%p\n", (void *)pip)); | |
5273 return (MDI_SUCCESS); | |
5274 } | |
5275 | |
5276 | |
5277 /* | |
5278 * routine for SCSI VHCI IOCTL implementation. | |
5279 */ | |
5280 /* ARGSUSED */ | |
5281 static int | |
5282 vhci_ctl(dev_t dev, int cmd, intptr_t data, int mode, cred_t *credp, int *rval) | |
5283 { | |
5284 struct scsi_vhci *vhci; | |
5285 dev_info_t *vdip; | |
5286 mdi_pathinfo_t *pip; | |
5287 int instance, held; | |
5288 int retval = 0; | |
5289 caddr_t phci_path = NULL, client_path = NULL; | |
5290 caddr_t paddr = NULL; | |
5291 sv_iocdata_t ioc; | |
5292 sv_iocdata_t *pioc = &ioc; | |
5293 sv_switch_to_cntlr_iocdata_t iocsc; | |
5294 sv_switch_to_cntlr_iocdata_t *piocsc = &iocsc; | |
5295 caddr_t s; | |
5296 scsi_vhci_lun_t *vlun; | |
5297 struct scsi_failover_ops *fo; | |
5298 char *pclass; | |
5299 | |
5300 /* Check for validity of vhci structure */ | |
5301 vhci = ddi_get_soft_state(vhci_softstate, MINOR2INST(getminor(dev))); | |
5302 if (vhci == NULL) { | |
5303 return (ENXIO); | |
5304 } | |
5305 | |
5306 mutex_enter(&vhci->vhci_mutex); | |
5307 if ((vhci->vhci_state & VHCI_STATE_OPEN) == 0) { | |
5308 mutex_exit(&vhci->vhci_mutex); | |
5309 return (ENXIO); | |
5310 } | |
5311 mutex_exit(&vhci->vhci_mutex); | |
5312 | |
5313 /* Get the vhci dip */ | |
5314 vdip = vhci->vhci_dip; | |
5315 ASSERT(vdip != NULL); | |
5316 instance = ddi_get_instance(vdip); | |
5317 | |
5318 /* Allocate memory for getting parameters from userland */ | |
5319 phci_path = kmem_zalloc(MAXPATHLEN, KM_SLEEP); | |
5320 client_path = kmem_zalloc(MAXPATHLEN, KM_SLEEP); | |
5321 paddr = kmem_zalloc(MAXNAMELEN, KM_SLEEP); | |
5322 | |
5323 /* | |
5324 * Set a local variable indicating the ioctl name. Used for | |
5325 * printing debug strings. | |
5326 */ | |
5327 switch (cmd) { | |
5328 case SCSI_VHCI_GET_CLIENT_MULTIPATH_INFO: | |
5329 s = "GET_CLIENT_MULTIPATH_INFO"; | |
5330 break; | |
5331 | |
5332 case SCSI_VHCI_GET_PHCI_MULTIPATH_INFO: | |
5333 s = "GET_PHCI_MULTIPATH_INFO"; | |
5334 break; | |
5335 | |
5336 case SCSI_VHCI_GET_CLIENT_NAME: | |
5337 s = "GET_CLIENT_NAME"; | |
5338 break; | |
5339 | |
5340 case SCSI_VHCI_PATH_ONLINE: | |
5341 s = "PATH_ONLINE"; | |
5342 break; | |
5343 | |
5344 case SCSI_VHCI_PATH_OFFLINE: | |
5345 s = "PATH_OFFLINE"; | |
5346 break; | |
5347 | |
5348 case SCSI_VHCI_PATH_STANDBY: | |
5349 s = "PATH_STANDBY"; | |
5350 break; | |
5351 | |
5352 case SCSI_VHCI_PATH_TEST: | |
5353 s = "PATH_TEST"; | |
5354 break; | |
5355 | |
5356 case SCSI_VHCI_SWITCH_TO_CNTLR: | |
5357 s = "SWITCH_TO_CNTLR"; | |
5358 break; | |
5359 case SCSI_VHCI_PATH_DISABLE: | |
5360 s = "PATH_DISABLE"; | |
5361 break; | |
5362 case SCSI_VHCI_PATH_ENABLE: | |
5363 s = "PATH_ENABLE"; | |
5364 break; | |
5365 | |
5366 case SCSI_VHCI_GET_TARGET_LONGNAME: | |
5367 s = "GET_TARGET_LONGNAME"; | |
5368 break; | |
5369 | |
5370 #ifdef DEBUG | |
5371 case SCSI_VHCI_CONFIGURE_PHCI: | |
5372 s = "CONFIGURE_PHCI"; | |
5373 break; | |
5374 | |
5375 case SCSI_VHCI_UNCONFIGURE_PHCI: | |
5376 s = "UNCONFIGURE_PHCI"; | |
5377 break; | |
5378 #endif | |
5379 | |
5380 default: | |
5381 s = "Unknown"; | |
5382 vhci_log(CE_NOTE, vdip, | |
5383 "!vhci%d: ioctl %x (unsupported ioctl)", instance, cmd); | |
5384 retval = ENOTSUP; | |
5385 break; | |
5386 } | |
5387 if (retval != 0) { | |
5388 goto end; | |
5389 } | |
5390 | |
5391 VHCI_DEBUG(6, (CE_WARN, vdip, "!vhci%d: ioctl <%s>", instance, s)); | |
5392 | |
5393 /* | |
5394 * Get IOCTL parameters from userland | |
5395 */ | |
5396 switch (cmd) { | |
5397 case SCSI_VHCI_GET_CLIENT_MULTIPATH_INFO: | |
5398 case SCSI_VHCI_GET_PHCI_MULTIPATH_INFO: | |
5399 case SCSI_VHCI_GET_CLIENT_NAME: | |
5400 case SCSI_VHCI_PATH_ONLINE: | |
5401 case SCSI_VHCI_PATH_OFFLINE: | |
5402 case SCSI_VHCI_PATH_STANDBY: | |
5403 case SCSI_VHCI_PATH_TEST: | |
5404 case SCSI_VHCI_PATH_DISABLE: | |
5405 case SCSI_VHCI_PATH_ENABLE: | |
5406 case SCSI_VHCI_GET_TARGET_LONGNAME: | |
5407 #ifdef DEBUG | |
5408 case SCSI_VHCI_CONFIGURE_PHCI: | |
5409 case SCSI_VHCI_UNCONFIGURE_PHCI: | |
5410 #endif | |
5411 retval = vhci_get_iocdata((const void *)data, pioc, mode, s); | |
5412 break; | |
5413 | |
5414 case SCSI_VHCI_SWITCH_TO_CNTLR: | |
5415 retval = vhci_get_iocswitchdata((const void *)data, piocsc, | |
5416 mode, s); | |
5417 break; | |
5418 } | |
5419 if (retval != 0) { | |
5420 goto end; | |
5421 } | |
5422 | |
5423 | |
5424 /* | |
5425 * Process the IOCTL | |
5426 */ | |
5427 switch (cmd) { | |
5428 case SCSI_VHCI_GET_CLIENT_MULTIPATH_INFO: | |
5429 { | |
5430 uint_t num_paths; /* Num paths to client dev */ | |
5431 sv_path_info_t *upibuf = NULL; /* To keep userland values */ | |
5432 sv_path_info_t *kpibuf = NULL; /* Kernel data for ioctls */ | |
5433 dev_info_t *cdip; /* Client device dip */ | |
5434 | |
5435 if (pioc->ret_elem == NULL) { | |
5436 retval = EINVAL; | |
5437 break; | |
5438 } | |
5439 | |
5440 /* Get client device path from user land */ | |
5441 if (vhci_ioc_get_client_path(pioc, client_path, mode, s)) { | |
5442 retval = EFAULT; | |
5443 break; | |
5444 } | |
5445 | |
5446 VHCI_DEBUG(6, (CE_WARN, vdip, "!vhci_ioctl: ioctl <%s> " | |
5447 "client <%s>", s, client_path)); | |
5448 | |
5449 /* Get number of paths to this client device */ | |
5450 if ((cdip = mdi_client_path2devinfo(vdip, client_path)) | |
5451 == NULL) { | |
5452 retval = ENXIO; | |
5453 VHCI_DEBUG(1, (CE_WARN, NULL, "!vhci_ioctl: ioctl <%s> " | |
5454 "client dip doesn't exist. invalid path <%s>", | |
5455 s, client_path)); | |
5456 break; | |
5457 } | |
5458 num_paths = mdi_client_get_path_count(cdip); | |
5459 | |
5460 if (ddi_copyout(&num_paths, pioc->ret_elem, | |
5461 sizeof (num_paths), mode)) { | |
5462 VHCI_DEBUG(1, (CE_WARN, NULL, "!vhci_ioctl: ioctl <%s> " | |
5463 "num_paths copyout failed", s)); | |
5464 retval = EFAULT; | |
5465 break; | |
5466 } | |
5467 | |
5468 /* If user just wanted num_paths, then return */ | |
5469 if (pioc->buf_elem == 0 || pioc->ret_buf == NULL || | |
5470 num_paths == 0) { | |
5471 break; | |
5472 } | |
5473 | |
5474 /* Set num_paths to value as much as can be sent to userland */ | |
5475 if (num_paths > pioc->buf_elem) { | |
5476 num_paths = pioc->buf_elem; | |
5477 } | |
5478 | |
5479 /* Allocate memory and get userland pointers */ | |
5480 if (vhci_ioc_alloc_pathinfo(&upibuf, &kpibuf, num_paths, | |
5481 pioc, mode, s) != 0) { | |
5482 retval = EFAULT; | |
5483 break; | |
5484 } | |
5485 ASSERT(upibuf != NULL); | |
5486 ASSERT(kpibuf != NULL); | |
5487 | |
5488 /* | |
5489 * Get the path information and send it to userland. | |
5490 */ | |
5491 if (vhci_get_client_path_list(cdip, kpibuf, num_paths) | |
5492 != MDI_SUCCESS) { | |
5493 retval = ENXIO; | |
5494 vhci_ioc_free_pathinfo(upibuf, kpibuf, num_paths); | |
5495 break; | |
5496 } | |
5497 | |
5498 if (vhci_ioc_send_pathinfo(upibuf, kpibuf, num_paths, | |
5499 pioc, mode, s)) { | |
5500 retval = EFAULT; | |
5501 vhci_ioc_free_pathinfo(upibuf, kpibuf, num_paths); | |
5502 break; | |
5503 } | |
5504 | |
5505 /* Free the memory allocated for path information */ | |
5506 vhci_ioc_free_pathinfo(upibuf, kpibuf, num_paths); | |
5507 break; | |
5508 } | |
5509 | |
5510 case SCSI_VHCI_GET_PHCI_MULTIPATH_INFO: | |
5511 { | |
5512 uint_t num_paths; /* Num paths to client dev */ | |
5513 sv_path_info_t *upibuf = NULL; /* To keep userland values */ | |
5514 sv_path_info_t *kpibuf = NULL; /* Kernel data for ioctls */ | |
5515 dev_info_t *pdip; /* PHCI device dip */ | |
5516 | |
5517 if (pioc->ret_elem == NULL) { | |
5518 retval = EINVAL; | |
5519 break; | |
5520 } | |
5521 | |
5522 /* Get PHCI device path from user land */ | |
5523 if (vhci_ioc_get_phci_path(pioc, phci_path, mode, s)) { | |
5524 retval = EFAULT; | |
5525 break; | |
5526 } | |
5527 | |
5528 VHCI_DEBUG(6, (CE_WARN, vdip, | |
5529 "!vhci_ioctl: ioctl <%s> phci <%s>", s, phci_path)); | |
5530 | |
5531 /* Get number of devices associated with this PHCI device */ | |
5532 if ((pdip = mdi_phci_path2devinfo(vdip, phci_path)) == NULL) { | |
5533 VHCI_DEBUG(1, (CE_WARN, NULL, "!vhci_ioctl: ioctl <%s> " | |
5534 "phci dip doesn't exist. invalid path <%s>", | |
5535 s, phci_path)); | |
5536 retval = ENXIO; | |
5537 break; | |
5538 } | |
5539 | |
5540 num_paths = mdi_phci_get_path_count(pdip); | |
5541 | |
5542 if (ddi_copyout(&num_paths, pioc->ret_elem, | |
5543 sizeof (num_paths), mode)) { | |
5544 VHCI_DEBUG(2, (CE_WARN, NULL, "!vhci_ioctl: ioctl <%s> " | |
5545 "num_paths copyout failed", s)); | |
5546 retval = EFAULT; | |
5547 break; | |
5548 } | |
5549 | |
5550 /* If user just wanted num_paths, then return */ | |
5551 if (pioc->buf_elem == 0 || pioc->ret_buf == NULL || | |
5552 num_paths == 0) { | |
5553 break; | |
5554 } | |
5555 | |
5556 /* Set num_paths to value as much as can be sent to userland */ | |
5557 if (num_paths > pioc->buf_elem) { | |
5558 num_paths = pioc->buf_elem; | |
5559 } | |
5560 | |
5561 /* Allocate memory and get userland pointers */ | |
5562 if (vhci_ioc_alloc_pathinfo(&upibuf, &kpibuf, num_paths, | |
5563 pioc, mode, s) != 0) { | |
5564 retval = EFAULT; | |
5565 break; | |
5566 } | |
5567 ASSERT(upibuf != NULL); | |
5568 ASSERT(kpibuf != NULL); | |
5569 | |
5570 /* | |
5571 * Get the path information and send it to userland. | |
5572 */ | |
5573 if (vhci_get_phci_path_list(pdip, kpibuf, num_paths) | |
5574 != MDI_SUCCESS) { | |
5575 retval = ENXIO; | |
5576 vhci_ioc_free_pathinfo(upibuf, kpibuf, num_paths); | |
5577 break; | |
5578 } | |
5579 | |
5580 if (vhci_ioc_send_pathinfo(upibuf, kpibuf, num_paths, | |
5581 pioc, mode, s)) { | |
5582 retval = EFAULT; | |
5583 vhci_ioc_free_pathinfo(upibuf, kpibuf, num_paths); | |
5584 break; | |
5585 } | |
5586 | |
5587 /* Free the memory allocated for path information */ | |
5588 vhci_ioc_free_pathinfo(upibuf, kpibuf, num_paths); | |
5589 break; | |
5590 } | |
5591 | |
5592 case SCSI_VHCI_GET_CLIENT_NAME: | |
5593 { | |
5594 dev_info_t *cdip, *pdip; | |
5595 | |
5596 /* Get PHCI path and device address from user land */ | |
5597 if (vhci_ioc_get_phci_path(pioc, phci_path, mode, s) || | |
5598 vhci_ioc_get_paddr(pioc, paddr, mode, s)) { | |
5599 retval = EFAULT; | |
5600 break; | |
5601 } | |
5602 | |
5603 VHCI_DEBUG(6, (CE_WARN, vdip, "!vhci_ioctl: ioctl <%s> " | |
5604 "phci <%s>, paddr <%s>", s, phci_path, paddr)); | |
5605 | |
5606 /* Get the PHCI dip */ | |
5607 if ((pdip = mdi_phci_path2devinfo(vdip, phci_path)) == NULL) { | |
5608 VHCI_DEBUG(1, (CE_WARN, NULL, "!vhci_ioctl: ioctl <%s> " | |
5609 "phci dip doesn't exist. invalid path <%s>", | |
5610 s, phci_path)); | |
5611 retval = ENXIO; | |
5612 break; | |
5613 } | |
5614 | |
5615 if ((pip = mdi_pi_find(pdip, NULL, paddr)) == NULL) { | |
5616 VHCI_DEBUG(1, (CE_WARN, vdip, "!vhci_ioctl: ioctl <%s> " | |
5617 "pathinfo doesn't exist. invalid device addr", s)); | |
5618 retval = ENXIO; | |
5619 break; | |
5620 } | |
5621 | |
5622 /* Get the client device pathname and send to userland */ | |
5623 cdip = mdi_pi_get_client(pip); | |
5624 vhci_ioc_devi_to_path(cdip, client_path); | |
5625 | |
5626 VHCI_DEBUG(6, (CE_WARN, vdip, "!vhci_ioctl: ioctl <%s> " | |
5627 "client <%s>", s, client_path)); | |
5628 | |
5629 if (vhci_ioc_send_client_path(client_path, pioc, mode, s)) { | |
5630 retval = EFAULT; | |
5631 break; | |
5632 } | |
5633 break; | |
5634 } | |
5635 | |
5636 case SCSI_VHCI_PATH_ONLINE: | |
5637 case SCSI_VHCI_PATH_OFFLINE: | |
5638 case SCSI_VHCI_PATH_STANDBY: | |
5639 case SCSI_VHCI_PATH_TEST: | |
5640 { | |
5641 dev_info_t *pdip; /* PHCI dip */ | |
5642 | |
5643 /* Get PHCI path and device address from user land */ | |
5644 if (vhci_ioc_get_phci_path(pioc, phci_path, mode, s) || | |
5645 vhci_ioc_get_paddr(pioc, paddr, mode, s)) { | |
5646 retval = EFAULT; | |
5647 break; | |
5648 } | |
5649 | |
5650 VHCI_DEBUG(6, (CE_WARN, vdip, "!vhci_ioctl: ioctl <%s> " | |
5651 "phci <%s>, paddr <%s>", s, phci_path, paddr)); | |
5652 | |
5653 /* Get the PHCI dip */ | |
5654 if ((pdip = mdi_phci_path2devinfo(vdip, phci_path)) == NULL) { | |
5655 VHCI_DEBUG(1, (CE_WARN, NULL, "!vhci_ioctl: ioctl <%s> " | |
5656 "phci dip doesn't exist. invalid path <%s>", | |
5657 s, phci_path)); | |
5658 retval = ENXIO; | |
5659 break; | |
5660 } | |
5661 | |
5662 if ((pip = mdi_pi_find(pdip, NULL, paddr)) == NULL) { | |
5663 VHCI_DEBUG(1, (CE_WARN, vdip, "!vhci_ioctl: ioctl <%s> " | |
5664 "pathinfo doesn't exist. invalid device addr", s)); | |
5665 retval = ENXIO; | |
5666 break; | |
5667 } | |
5668 | |
5669 VHCI_DEBUG(6, (CE_WARN, vdip, "!vhci_ioctl: ioctl <%s> " | |
5670 "Calling MDI function to change device state", s)); | |
5671 | |
5672 switch (cmd) { | |
5673 case SCSI_VHCI_PATH_ONLINE: | |
5674 retval = mdi_pi_online(pip, 0); | |
5675 break; | |
5676 | |
5677 case SCSI_VHCI_PATH_OFFLINE: | |
5678 retval = mdi_pi_offline(pip, 0); | |
5679 break; | |
5680 | |
5681 case SCSI_VHCI_PATH_STANDBY: | |
5682 retval = mdi_pi_standby(pip, 0); | |
5683 break; | |
5684 | |
5685 case SCSI_VHCI_PATH_TEST: | |
5686 break; | |
5687 } | |
5688 break; | |
5689 } | |
5690 | |
5691 case SCSI_VHCI_SWITCH_TO_CNTLR: | |
5692 { | |
5693 dev_info_t *cdip; | |
5694 struct scsi_device *devp; | |
5695 | |
5696 /* Get the client device pathname */ | |
5697 if (ddi_copyin(piocsc->client, client_path, | |
5698 MAXPATHLEN, mode)) { | |
5699 VHCI_DEBUG(2, (CE_WARN, vdip, "!vhci_ioctl: ioctl <%s> " | |
5700 "client_path copyin failed", s)); | |
5701 retval = EFAULT; | |
5702 break; | |
5703 } | |
5704 | |
5705 /* Get the path class to which user wants to switch */ | |
5706 if (ddi_copyin(piocsc->class, paddr, MAXNAMELEN, mode)) { | |
5707 VHCI_DEBUG(2, (CE_WARN, vdip, "!vhci_ioctl: ioctl <%s> " | |
5708 "controller_class copyin failed", s)); | |
5709 retval = EFAULT; | |
5710 break; | |
5711 } | |
5712 | |
5713 /* Perform validity checks */ | |
5714 if ((cdip = mdi_client_path2devinfo(vdip, | |
5715 client_path)) == NULL) { | |
5716 VHCI_DEBUG(1, (CE_WARN, NULL, "!vhci_ioctl: ioctl <%s> " | |
5717 "client dip doesn't exist. invalid path <%s>", | |
5718 s, client_path)); | |
5719 retval = ENXIO; | |
5720 break; | |
5721 } | |
5722 | |
5723 VHCI_DEBUG(6, (CE_WARN, vdip, "!vhci_ioctl: Calling MDI func " | |
5724 "to switch controller")); | |
5725 VHCI_DEBUG(6, (CE_WARN, vdip, "!vhci_ioctl: client <%s> " | |
5726 "class <%s>", client_path, paddr)); | |
5727 | |
5728 if (strcmp(paddr, PCLASS_PRIMARY) && | |
5729 strcmp(paddr, PCLASS_SECONDARY)) { | |
5730 VHCI_DEBUG(2, (CE_WARN, NULL, "!vhci_ioctl: ioctl <%s> " | |
5731 "invalid path class <%s>", s, paddr)); | |
5732 retval = ENXIO; | |
5733 break; | |
5734 } | |
5735 | |
5736 devp = ddi_get_driver_private(cdip); | |
5737 if (devp == NULL) { | |
5738 VHCI_DEBUG(2, (CE_WARN, NULL, "!vhci_ioctl: ioctl <%s> " | |
5739 "invalid scsi device <%s>", s, client_path)); | |
5740 retval = ENXIO; | |
5741 break; | |
5742 } | |
5743 vlun = ADDR2VLUN(&devp->sd_address); | |
5744 ASSERT(vlun); | |
5745 | |
5746 /* | |
5747 * Checking to see if device has only one pclass, PRIMARY. | |
5748 * If so this device doesn't support failovers. Assumed | |
5749 * that the devices with one pclass is PRIMARY, as thats the | |
5750 * case today. If this is not true and in future other | |
5751 * symmetric devices are supported with other pclass, this | |
5752 * IOCTL shall have to be overhauled anyways as now the only | |
5753 * arguments it accepts are PRIMARY and SECONDARY. | |
5754 */ | |
5755 fo = vlun->svl_fops; | |
6941
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
rralphs
parents:
6777
diff
changeset
|
5756 if (fo->sfo_pathclass_next(PCLASS_PRIMARY, &pclass, |
4851 | 5757 vlun->svl_fops_ctpriv)) { |
5758 retval = ENOTSUP; | |
5759 break; | |
5760 } | |
5761 | |
5762 VHCI_HOLD_LUN(vlun, VH_SLEEP, held); | |
5763 mutex_enter(&vlun->svl_mutex); | |
5764 if (vlun->svl_active_pclass != NULL) { | |
5765 if (strcmp(vlun->svl_active_pclass, paddr) == 0) { | |
5766 mutex_exit(&vlun->svl_mutex); | |
5767 retval = EALREADY; | |
5768 VHCI_RELEASE_LUN(vlun); | |
5769 break; | |
5770 } | |
5771 } | |
5772 mutex_exit(&vlun->svl_mutex); | |
5773 /* Call mdi function to cause a switch over */ | |
5774 retval = mdi_failover(vdip, cdip, MDI_FAILOVER_SYNC); | |
5775 if (retval == MDI_SUCCESS) { | |
5776 retval = 0; | |
5777 } else if (retval == MDI_BUSY) { | |
5778 retval = EBUSY; | |
5779 } else { | |
5780 retval = EIO; | |
5781 } | |
5782 VHCI_RELEASE_LUN(vlun); | |
5783 break; | |
5784 } | |
5785 | |
5786 case SCSI_VHCI_PATH_ENABLE: | |
5787 case SCSI_VHCI_PATH_DISABLE: | |
5788 { | |
5789 dev_info_t *cdip, *pdip; | |
5790 | |
5791 /* | |
5792 * Get client device path from user land | |
5793 */ | |
5794 if (vhci_ioc_get_client_path(pioc, client_path, mode, s)) { | |
5795 retval = EFAULT; | |
5796 break; | |
5797 } | |
5798 | |
5799 /* | |
5800 * Get Phci device path from user land | |
5801 */ | |
5802 if (vhci_ioc_get_phci_path(pioc, phci_path, mode, s)) { | |
5803 retval = EFAULT; | |
5804 break; | |
5805 } | |
5806 | |
5807 /* | |
5808 * Get the devinfo for the Phci. | |
5809 */ | |
5810 if ((pdip = mdi_phci_path2devinfo(vdip, phci_path)) == NULL) { | |
5811 VHCI_DEBUG(1, (CE_WARN, NULL, "!vhci_ioctl: ioctl <%s> " | |
5812 "phci dip doesn't exist. invalid path <%s>", | |
5813 s, phci_path)); | |
5814 retval = ENXIO; | |
5815 break; | |
5816 } | |
5817 | |
5818 /* | |
5819 * If the client path is set to /scsi_vhci then we need | |
5820 * to do the operation on all the clients so set cdip to NULL. | |
5821 * Else, try to get the client dip. | |
5822 */ | |
5823 if (strcmp(client_path, "/scsi_vhci") == 0) { | |
5824 cdip = NULL; | |
5825 } else { | |
5826 if ((cdip = mdi_client_path2devinfo(vdip, | |
5827 client_path)) == NULL) { | |
5828 retval = ENXIO; | |
5829 VHCI_DEBUG(1, (CE_WARN, NULL, | |
5830 "!vhci_ioctl: ioctl <%s> client dip " | |
5831 "doesn't exist. invalid path <%s>", | |
5832 s, client_path)); | |
5833 break; | |
5834 } | |
5835 } | |
5836 | |
5837 if (cmd == SCSI_VHCI_PATH_ENABLE) | |
5838 retval = mdi_pi_enable(cdip, pdip, USER_DISABLE); | |
5839 else | |
5840 retval = mdi_pi_disable(cdip, pdip, USER_DISABLE); | |
5841 | |
5842 break; | |
5843 } | |
5844 | |
5845 case SCSI_VHCI_GET_TARGET_LONGNAME: | |
5846 { | |
5847 uint_t pid = pioc->buf_elem; | |
5848 char *target_port; | |
5849 mod_hash_val_t hv; | |
5850 | |
5851 /* targetmap lookup of 'target-port' by <pid> */ | |
5852 if (mod_hash_find(vhci_targetmap_bypid, | |
5853 (mod_hash_key_t)(uintptr_t)pid, &hv) != 0) { | |
5854 /* | |
5855 * NOTE: failure to find the mapping is OK for guid | |
5856 * based 'target-port' values. | |
5857 */ | |
5858 VHCI_DEBUG(3, (CE_WARN, NULL, "!vhci_ioctl: ioctl <%s> " | |
5859 "targetport mapping doesn't exist: pid %d", | |
5860 s, pid)); | |
5861 retval = ENXIO; | |
5862 break; | |
5863 } | |
5864 | |
5865 /* copyout 'target-port' result */ | |
5866 target_port = (char *)hv; | |
5867 if (copyoutstr(target_port, pioc->addr, MAXNAMELEN, NULL)) { | |
5868 VHCI_DEBUG(1, (CE_WARN, NULL, "!vhci_ioctl: ioctl <%s> " | |
5869 "targetport copyout failed: len: %d", | |
5870 s, (int)strlen(target_port))); | |
5871 retval = EFAULT; | |
5872 } | |
5873 break; | |
5874 } | |
5875 | |
5876 #ifdef DEBUG | |
5877 case SCSI_VHCI_CONFIGURE_PHCI: | |
5878 { | |
5879 dev_info_t *pdip; | |
5880 | |
5881 /* Get PHCI path and device address from user land */ | |
5882 if (vhci_ioc_get_phci_path(pioc, phci_path, mode, s)) { | |
5883 retval = EFAULT; | |
5884 break; | |
5885 } | |
5886 | |
5887 VHCI_DEBUG(6, (CE_WARN, vdip, "!vhci_ioctl: ioctl <%s> " | |
5888 "phci <%s>", s, phci_path)); | |
5889 | |
5890 /* Get the PHCI dip */ | |
5891 if ((pdip = e_ddi_hold_devi_by_path(phci_path, 0)) == NULL) { | |
5892 VHCI_DEBUG(3, (CE_WARN, NULL, "!vhci_ioctl: ioctl <%s> " | |
5893 "phci dip doesn't exist. invalid path <%s>", | |
5894 s, phci_path)); | |
5895 retval = ENXIO; | |
5896 break; | |
5897 } | |
5898 | |
5899 if (ndi_devi_config(pdip, | |
5900 NDI_DEVFS_CLEAN|NDI_DEVI_PERSIST) != NDI_SUCCESS) { | |
5901 retval = EIO; | |
5902 } | |
5903 | |
5904 ddi_release_devi(pdip); | |
5905 break; | |
5906 } | |
5907 | |
5908 case SCSI_VHCI_UNCONFIGURE_PHCI: | |
5909 { | |
5910 dev_info_t *pdip; | |
5911 | |
5912 /* Get PHCI path and device address from user land */ | |
5913 if (vhci_ioc_get_phci_path(pioc, phci_path, mode, s)) { | |
5914 retval = EFAULT; | |
5915 break; | |
5916 } | |
5917 | |
5918 VHCI_DEBUG(6, (CE_WARN, vdip, "!vhci_ioctl: ioctl <%s> " | |
5919 "phci <%s>", s, phci_path)); | |
5920 | |
5921 /* Get the PHCI dip */ | |
5922 if ((pdip = e_ddi_hold_devi_by_path(phci_path, 0)) == NULL) { | |
5923 VHCI_DEBUG(3, (CE_WARN, NULL, "!vhci_ioctl: ioctl <%s> " | |
5924 "phci dip doesn't exist. invalid path <%s>", | |
5925 s, phci_path)); | |
5926 retval = ENXIO; | |
5927 break; | |
5928 } | |
5929 | |
5930 if (ndi_devi_unconfig(pdip, | |
5931 NDI_DEVI_REMOVE|NDI_DEVFS_CLEAN) != NDI_SUCCESS) { | |
5932 retval = EBUSY; | |
5933 } | |
5934 | |
5935 ddi_release_devi(pdip); | |
5936 break; | |
5937 } | |
5938 #endif | |
5939 } | |
5940 | |
5941 end: | |
5942 /* Free the memory allocated above */ | |
5943 if (phci_path != NULL) { | |
5944 kmem_free(phci_path, MAXPATHLEN); | |
5945 } | |
5946 if (client_path != NULL) { | |
5947 kmem_free(client_path, MAXPATHLEN); | |
5948 } | |
5949 if (paddr != NULL) { | |
5950 kmem_free(paddr, MAXNAMELEN); | |
5951 } | |
5952 return (retval); | |
5953 } | |
5954 | |
5955 /* | |
5956 * devctl IOCTL support for client device DR | |
5957 */ | |
5958 /* ARGSUSED */ | |
5959 int | |
5960 vhci_devctl(dev_t dev, int cmd, intptr_t arg, int mode, cred_t *credp, | |
5961 int *rvalp) | |
5962 { | |
5963 dev_info_t *self; | |
5964 dev_info_t *child; | |
5965 scsi_hba_tran_t *hba; | |
5966 struct devctl_iocdata *dcp; | |
5967 struct scsi_vhci *vhci; | |
5968 int rv = 0; | |
5969 int retval = 0; | |
5970 scsi_vhci_priv_t *svp; | |
5971 mdi_pathinfo_t *pip; | |
5972 | |
5973 if ((vhci = ddi_get_soft_state(vhci_softstate, | |
5974 MINOR2INST(getminor(dev)))) == NULL) | |
5975 return (ENXIO); | |
5976 | |
5977 /* | |
5978 * check if :devctl minor device has been opened | |
5979 */ | |
5980 mutex_enter(&vhci->vhci_mutex); | |
5981 if ((vhci->vhci_state & VHCI_STATE_OPEN) == 0) { | |
5982 mutex_exit(&vhci->vhci_mutex); | |
5983 return (ENXIO); | |
5984 } | |
5985 mutex_exit(&vhci->vhci_mutex); | |
5986 | |
5987 self = vhci->vhci_dip; | |
5988 hba = ddi_get_driver_private(self); | |
5989 if (hba == NULL) | |
5990 return (ENXIO); | |
5991 | |
5992 /* | |
5993 * We can use the generic implementation for these ioctls | |
5994 */ | |
5995 switch (cmd) { | |
5996 case DEVCTL_DEVICE_GETSTATE: | |
5997 case DEVCTL_DEVICE_ONLINE: | |
5998 case DEVCTL_DEVICE_OFFLINE: | |
5999 case DEVCTL_DEVICE_REMOVE: | |
6000 case DEVCTL_BUS_GETSTATE: | |
6001 return (ndi_devctl_ioctl(self, cmd, arg, mode, 0)); | |
6002 } | |
6003 | |
6004 /* | |
6005 * read devctl ioctl data | |
6006 */ | |
6007 if (ndi_dc_allochdl((void *)arg, &dcp) != NDI_SUCCESS) | |
6008 return (EFAULT); | |
6009 | |
6010 switch (cmd) { | |
6011 | |
6012 case DEVCTL_DEVICE_RESET: | |
6013 /* | |
6014 * lookup and hold child device | |
6015 */ | |
6016 if ((child = ndi_devi_find(self, ndi_dc_getname(dcp), | |
6017 ndi_dc_getaddr(dcp))) == NULL) { | |
6018 rv = ENXIO; | |
6019 break; | |
6020 } | |
6021 retval = mdi_select_path(child, NULL, | |
6022 (MDI_SELECT_ONLINE_PATH | MDI_SELECT_STANDBY_PATH), | |
6023 NULL, &pip); | |
6024 if ((retval != MDI_SUCCESS) || (pip == NULL)) { | |
6025 VHCI_DEBUG(2, (CE_WARN, NULL, "!vhci_ioctl:" | |
6026 "Unable to get a path, dip 0x%p", (void *)child)); | |
6027 rv = ENXIO; | |
6028 break; | |
6029 } | |
6030 svp = (scsi_vhci_priv_t *)mdi_pi_get_vhci_private(pip); | |
6031 if (vhci_recovery_reset(svp->svp_svl, | |
6032 &svp->svp_psd->sd_address, TRUE, | |
6033 VHCI_DEPTH_TARGET) == 0) { | |
6034 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
6035 "!vhci_ioctl(pip:%p): " | |
6036 "reset failed\n", (void *)pip)); | |
6037 rv = ENXIO; | |
6038 } | |
6039 mdi_rele_path(pip); | |
6040 break; | |
6041 | |
6042 case DEVCTL_BUS_QUIESCE: | |
6043 case DEVCTL_BUS_UNQUIESCE: | |
6044 case DEVCTL_BUS_RESET: | |
6045 case DEVCTL_BUS_RESETALL: | |
6046 #ifdef DEBUG | |
6047 case DEVCTL_BUS_CONFIGURE: | |
6048 case DEVCTL_BUS_UNCONFIGURE: | |
6049 #endif | |
6050 rv = ENOTSUP; | |
6051 break; | |
6052 | |
6053 default: | |
6054 rv = ENOTTY; | |
6055 } /* end of outer switch */ | |
6056 | |
6057 ndi_dc_freehdl(dcp); | |
6058 return (rv); | |
6059 } | |
6060 | |
6061 /* | |
6062 * Routine to get the PHCI pathname from ioctl structures in userland | |
6063 */ | |
6064 /* ARGSUSED */ | |
6065 static int | |
6066 vhci_ioc_get_phci_path(sv_iocdata_t *pioc, caddr_t phci_path, | |
6067 int mode, caddr_t s) | |
6068 { | |
6069 int retval = 0; | |
6070 | |
6071 if (ddi_copyin(pioc->phci, phci_path, MAXPATHLEN, mode)) { | |
6072 VHCI_DEBUG(2, (CE_WARN, NULL, "!vhci_ioc_get_phci: ioctl <%s> " | |
6073 "phci_path copyin failed", s)); | |
6074 retval = EFAULT; | |
6075 } | |
6076 return (retval); | |
6077 | |
6078 } | |
6079 | |
6080 | |
6081 /* | |
6082 * Routine to get the Client device pathname from ioctl structures in userland | |
6083 */ | |
6084 /* ARGSUSED */ | |
6085 static int | |
6086 vhci_ioc_get_client_path(sv_iocdata_t *pioc, caddr_t client_path, | |
6087 int mode, caddr_t s) | |
6088 { | |
6089 int retval = 0; | |
6090 | |
6091 if (ddi_copyin(pioc->client, client_path, MAXPATHLEN, mode)) { | |
6092 VHCI_DEBUG(2, (CE_WARN, NULL, "!vhci_ioc_get_client: " | |
6093 "ioctl <%s> client_path copyin failed", s)); | |
6094 retval = EFAULT; | |
6095 } | |
6096 return (retval); | |
6097 } | |
6098 | |
6099 | |
6100 /* | |
6101 * Routine to get physical device address from ioctl structure in userland | |
6102 */ | |
6103 /* ARGSUSED */ | |
6104 static int | |
6105 vhci_ioc_get_paddr(sv_iocdata_t *pioc, caddr_t paddr, int mode, caddr_t s) | |
6106 { | |
6107 int retval = 0; | |
6108 | |
6109 if (ddi_copyin(pioc->addr, paddr, MAXNAMELEN, mode)) { | |
6110 VHCI_DEBUG(2, (CE_WARN, NULL, "!vhci_ioc_get_paddr: " | |
6111 "ioctl <%s> device addr copyin failed", s)); | |
6112 retval = EFAULT; | |
6113 } | |
6114 return (retval); | |
6115 } | |
6116 | |
6117 | |
6118 /* | |
6119 * Routine to send client device pathname to userland. | |
6120 */ | |
6121 /* ARGSUSED */ | |
6122 static int | |
6123 vhci_ioc_send_client_path(caddr_t client_path, sv_iocdata_t *pioc, | |
6124 int mode, caddr_t s) | |
6125 { | |
6126 int retval = 0; | |
6127 | |
6128 if (ddi_copyout(client_path, pioc->client, MAXPATHLEN, mode)) { | |
6129 VHCI_DEBUG(2, (CE_WARN, NULL, "!vhci_ioc_send_client: " | |
6130 "ioctl <%s> client_path copyout failed", s)); | |
6131 retval = EFAULT; | |
6132 } | |
6133 return (retval); | |
6134 } | |
6135 | |
6136 | |
6137 /* | |
6138 * Routine to translated dev_info pointer (dip) to device pathname. | |
6139 */ | |
6140 static void | |
6141 vhci_ioc_devi_to_path(dev_info_t *dip, caddr_t path) | |
6142 { | |
6143 (void) ddi_pathname(dip, path); | |
6144 } | |
6145 | |
6146 | |
6147 /* | |
6148 * vhci_get_phci_path_list: | |
6149 * get information about devices associated with a | |
6150 * given PHCI device. | |
6151 * | |
6152 * Return Values: | |
6153 * path information elements | |
6154 */ | |
6155 int | |
6156 vhci_get_phci_path_list(dev_info_t *pdip, sv_path_info_t *pibuf, | |
6157 uint_t num_elems) | |
6158 { | |
6159 uint_t count, done; | |
6160 mdi_pathinfo_t *pip; | |
6161 sv_path_info_t *ret_pip; | |
6162 int status; | |
6163 size_t prop_size; | |
6164 int circular; | |
6165 | |
6166 /* | |
6167 * Get the PHCI structure and retrieve the path information | |
6168 * from the GUID hash table. | |
6169 */ | |
6170 | |
6171 ret_pip = pibuf; | |
6172 count = 0; | |
6173 | |
6174 ndi_devi_enter(pdip, &circular); | |
6175 | |
6176 done = (count >= num_elems); | |
6177 pip = mdi_get_next_client_path(pdip, NULL); | |
6178 while (pip && !done) { | |
6179 mdi_pi_lock(pip); | |
6180 (void) ddi_pathname(mdi_pi_get_phci(pip), | |
6181 ret_pip->device.ret_phci); | |
6182 (void) strcpy(ret_pip->ret_addr, mdi_pi_get_addr(pip)); | |
6183 (void) mdi_pi_get_state2(pip, &ret_pip->ret_state, | |
6184 &ret_pip->ret_ext_state); | |
6185 | |
6186 status = mdi_prop_size(pip, &prop_size); | |
6187 if (status == MDI_SUCCESS && ret_pip->ret_prop.ret_buf_size) { | |
6188 *ret_pip->ret_prop.ret_buf_size = (uint_t)prop_size; | |
6189 } | |
6190 | |
6191 #ifdef DEBUG | |
6192 if (status != MDI_SUCCESS) { | |
6193 VHCI_DEBUG(2, (CE_WARN, NULL, | |
6194 "!vhci_get_phci_path_list: " | |
6195 "phci <%s>, prop size failure 0x%x", | |
6196 ret_pip->device.ret_phci, status)); | |
6197 } | |
6198 #endif /* DEBUG */ | |
6199 | |
6200 | |
6201 if (status == MDI_SUCCESS && ret_pip->ret_prop.buf && | |
6202 prop_size && ret_pip->ret_prop.buf_size >= prop_size) { | |
6203 status = mdi_prop_pack(pip, | |
6204 &ret_pip->ret_prop.buf, | |
6205 ret_pip->ret_prop.buf_size); | |
6206 | |
6207 #ifdef DEBUG | |
6208 if (status != MDI_SUCCESS) { | |
6209 VHCI_DEBUG(2, (CE_WARN, NULL, | |
6210 "!vhci_get_phci_path_list: " | |
6211 "phci <%s>, prop pack failure 0x%x", | |
6212 ret_pip->device.ret_phci, status)); | |
6213 } | |
6214 #endif /* DEBUG */ | |
6215 } | |
6216 | |
6217 mdi_pi_unlock(pip); | |
6218 pip = mdi_get_next_client_path(pdip, pip); | |
6219 ret_pip++; | |
6220 count++; | |
6221 done = (count >= num_elems); | |
6222 } | |
6223 | |
6224 ndi_devi_exit(pdip, circular); | |
6225 | |
6226 return (MDI_SUCCESS); | |
6227 } | |
6228 | |
6229 | |
6230 /* | |
6231 * vhci_get_client_path_list: | |
6232 * get information about various paths associated with a | |
6233 * given client device. | |
6234 * | |
6235 * Return Values: | |
6236 * path information elements | |
6237 */ | |
6238 int | |
6239 vhci_get_client_path_list(dev_info_t *cdip, sv_path_info_t *pibuf, | |
6240 uint_t num_elems) | |
6241 { | |
6242 uint_t count, done; | |
6243 mdi_pathinfo_t *pip; | |
6244 sv_path_info_t *ret_pip; | |
6245 int status; | |
6246 size_t prop_size; | |
6247 int circular; | |
6248 | |
6249 ret_pip = pibuf; | |
6250 count = 0; | |
6251 | |
6252 ndi_devi_enter(cdip, &circular); | |
6253 | |
6254 done = (count >= num_elems); | |
6255 pip = mdi_get_next_phci_path(cdip, NULL); | |
6256 while (pip && !done) { | |
6257 mdi_pi_lock(pip); | |
6258 (void) ddi_pathname(mdi_pi_get_phci(pip), | |
6259 ret_pip->device.ret_phci); | |
6260 (void) strcpy(ret_pip->ret_addr, mdi_pi_get_addr(pip)); | |
6261 (void) mdi_pi_get_state2(pip, &ret_pip->ret_state, | |
6262 &ret_pip->ret_ext_state); | |
6263 | |
6264 status = mdi_prop_size(pip, &prop_size); | |
6265 if (status == MDI_SUCCESS && ret_pip->ret_prop.ret_buf_size) { | |
6266 *ret_pip->ret_prop.ret_buf_size = (uint_t)prop_size; | |
6267 } | |
6268 | |
6269 #ifdef DEBUG | |
6270 if (status != MDI_SUCCESS) { | |
6271 VHCI_DEBUG(2, (CE_WARN, NULL, | |
6272 "!vhci_get_client_path_list: " | |
6273 "phci <%s>, prop size failure 0x%x", | |
6274 ret_pip->device.ret_phci, status)); | |
6275 } | |
6276 #endif /* DEBUG */ | |
6277 | |
6278 | |
6279 if (status == MDI_SUCCESS && ret_pip->ret_prop.buf && | |
6280 prop_size && ret_pip->ret_prop.buf_size >= prop_size) { | |
6281 status = mdi_prop_pack(pip, | |
6282 &ret_pip->ret_prop.buf, | |
6283 ret_pip->ret_prop.buf_size); | |
6284 | |
6285 #ifdef DEBUG | |
6286 if (status != MDI_SUCCESS) { | |
6287 VHCI_DEBUG(2, (CE_WARN, NULL, | |
6288 "!vhci_get_client_path_list: " | |
6289 "phci <%s>, prop pack failure 0x%x", | |
6290 ret_pip->device.ret_phci, status)); | |
6291 } | |
6292 #endif /* DEBUG */ | |
6293 } | |
6294 | |
6295 mdi_pi_unlock(pip); | |
6296 pip = mdi_get_next_phci_path(cdip, pip); | |
6297 ret_pip++; | |
6298 count++; | |
6299 done = (count >= num_elems); | |
6300 } | |
6301 | |
6302 ndi_devi_exit(cdip, circular); | |
6303 | |
6304 return (MDI_SUCCESS); | |
6305 } | |
6306 | |
6307 | |
6308 /* | |
6309 * Routine to get ioctl argument structure from userland. | |
6310 */ | |
6311 /* ARGSUSED */ | |
6312 static int | |
6313 vhci_get_iocdata(const void *data, sv_iocdata_t *pioc, int mode, caddr_t s) | |
6314 { | |
6315 int retval = 0; | |
6316 | |
6317 #ifdef _MULTI_DATAMODEL | |
6318 switch (ddi_model_convert_from(mode & FMODELS)) { | |
6319 case DDI_MODEL_ILP32: | |
6320 { | |
6321 sv_iocdata32_t ioc32; | |
6322 | |
6323 if (ddi_copyin(data, &ioc32, sizeof (ioc32), mode)) { | |
6324 retval = EFAULT; | |
6325 break; | |
6326 } | |
6327 pioc->client = (caddr_t)(uintptr_t)ioc32.client; | |
6328 pioc->phci = (caddr_t)(uintptr_t)ioc32.phci; | |
6329 pioc->addr = (caddr_t)(uintptr_t)ioc32.addr; | |
6330 pioc->buf_elem = (uint_t)ioc32.buf_elem; | |
6331 pioc->ret_buf = (sv_path_info_t *)(uintptr_t)ioc32.ret_buf; | |
6332 pioc->ret_elem = (uint_t *)(uintptr_t)ioc32.ret_elem; | |
6333 break; | |
6334 } | |
6335 | |
6336 case DDI_MODEL_NONE: | |
6337 if (ddi_copyin(data, pioc, sizeof (*pioc), mode)) { | |
6338 retval = EFAULT; | |
6339 break; | |
6340 } | |
6341 break; | |
6342 } | |
6343 #else /* _MULTI_DATAMODEL */ | |
6344 if (ddi_copyin(data, pioc, sizeof (*pioc), mode)) { | |
6345 retval = EFAULT; | |
6346 } | |
6347 #endif /* _MULTI_DATAMODEL */ | |
6348 | |
6349 #ifdef DEBUG | |
6350 if (retval) { | |
6351 VHCI_DEBUG(2, (CE_WARN, NULL, "!vhci_get_ioc: cmd <%s> " | |
6352 "iocdata copyin failed", s)); | |
6353 } | |
6354 #endif | |
6355 | |
6356 return (retval); | |
6357 } | |
6358 | |
6359 | |
6360 /* | |
6361 * Routine to get the ioctl argument for ioctl causing controller switchover. | |
6362 */ | |
6363 /* ARGSUSED */ | |
6364 static int | |
6365 vhci_get_iocswitchdata(const void *data, sv_switch_to_cntlr_iocdata_t *piocsc, | |
6366 int mode, caddr_t s) | |
6367 { | |
6368 int retval = 0; | |
6369 | |
6370 #ifdef _MULTI_DATAMODEL | |
6371 switch (ddi_model_convert_from(mode & FMODELS)) { | |
6372 case DDI_MODEL_ILP32: | |
6373 { | |
6374 sv_switch_to_cntlr_iocdata32_t ioc32; | |
6375 | |
6376 if (ddi_copyin(data, &ioc32, sizeof (ioc32), mode)) { | |
6377 retval = EFAULT; | |
6378 break; | |
6379 } | |
6380 piocsc->client = (caddr_t)(uintptr_t)ioc32.client; | |
6381 piocsc->class = (caddr_t)(uintptr_t)ioc32.class; | |
6382 break; | |
6383 } | |
6384 | |
6385 case DDI_MODEL_NONE: | |
6386 if (ddi_copyin(data, piocsc, sizeof (*piocsc), mode)) { | |
6387 retval = EFAULT; | |
6388 } | |
6389 break; | |
6390 } | |
6391 #else /* _MULTI_DATAMODEL */ | |
6392 if (ddi_copyin(data, piocsc, sizeof (*piocsc), mode)) { | |
6393 retval = EFAULT; | |
6394 } | |
6395 #endif /* _MULTI_DATAMODEL */ | |
6396 | |
6397 #ifdef DEBUG | |
6398 if (retval) { | |
6399 VHCI_DEBUG(2, (CE_WARN, NULL, "!vhci_get_ioc: cmd <%s> " | |
6400 "switch_to_cntlr_iocdata copyin failed", s)); | |
6401 } | |
6402 #endif | |
6403 | |
6404 return (retval); | |
6405 } | |
6406 | |
6407 | |
6408 /* | |
6409 * Routine to allocate memory for the path information structures. | |
6410 * It allocates two chunks of memory - one for keeping userland | |
6411 * pointers/values for path information and path properties, second for | |
6412 * keeping allocating kernel memory for path properties. These path | |
6413 * properties are finally copied to userland. | |
6414 */ | |
6415 /* ARGSUSED */ | |
6416 static int | |
6417 vhci_ioc_alloc_pathinfo(sv_path_info_t **upibuf, sv_path_info_t **kpibuf, | |
6418 uint_t num_paths, sv_iocdata_t *pioc, int mode, caddr_t s) | |
6419 { | |
6420 sv_path_info_t *pi; | |
6421 uint_t bufsize; | |
6422 int retval = 0; | |
6423 int index; | |
6424 | |
6425 /* Allocate memory */ | |
6426 *upibuf = (sv_path_info_t *) | |
6427 kmem_zalloc(sizeof (sv_path_info_t) * num_paths, KM_SLEEP); | |
6428 ASSERT(*upibuf != NULL); | |
6429 *kpibuf = (sv_path_info_t *) | |
6430 kmem_zalloc(sizeof (sv_path_info_t) * num_paths, KM_SLEEP); | |
6431 ASSERT(*kpibuf != NULL); | |
6432 | |
6433 /* | |
6434 * Get the path info structure from the user space. | |
6435 * We are interested in the following fields: | |
6436 * - user size of buffer for per path properties. | |
6437 * - user address of buffer for path info properties. | |
6438 * - user pointer for returning actual buffer size | |
6439 * Keep these fields in the 'upibuf' structures. | |
6440 * Allocate buffer for per path info properties in kernel | |
6441 * structure ('kpibuf'). | |
6442 * Size of these buffers will be equal to the size of buffers | |
6443 * in the user space. | |
6444 */ | |
6445 #ifdef _MULTI_DATAMODEL | |
6446 switch (ddi_model_convert_from(mode & FMODELS)) { | |
6447 case DDI_MODEL_ILP32: | |
6448 { | |
6449 sv_path_info32_t *src; | |
6450 sv_path_info32_t pi32; | |
6451 | |
6452 src = (sv_path_info32_t *)pioc->ret_buf; | |
6453 pi = (sv_path_info_t *)*upibuf; | |
6454 for (index = 0; index < num_paths; index++, src++, pi++) { | |
6455 if (ddi_copyin(src, &pi32, sizeof (pi32), mode)) { | |
6456 retval = EFAULT; | |
6457 break; | |
6458 } | |
6459 | |
6460 pi->ret_prop.buf_size = | |
6461 (uint_t)pi32.ret_prop.buf_size; | |
6462 pi->ret_prop.ret_buf_size = | |
6463 (uint_t *)(uintptr_t)pi32.ret_prop.ret_buf_size; | |
6464 pi->ret_prop.buf = | |
6465 (caddr_t)(uintptr_t)pi32.ret_prop.buf; | |
6466 } | |
6467 break; | |
6468 } | |
6469 | |
6470 case DDI_MODEL_NONE: | |
6471 if (ddi_copyin(pioc->ret_buf, *upibuf, | |
6472 sizeof (sv_path_info_t) * num_paths, mode)) { | |
6473 retval = EFAULT; | |
6474 } | |
6475 break; | |
6476 } | |
6477 #else /* _MULTI_DATAMODEL */ | |
6478 if (ddi_copyin(pioc->ret_buf, *upibuf, | |
6479 sizeof (sv_path_info_t) * num_paths, mode)) { | |
6480 retval = EFAULT; | |
6481 } | |
6482 #endif /* _MULTI_DATAMODEL */ | |
6483 | |
6484 if (retval != 0) { | |
6485 VHCI_DEBUG(2, (CE_WARN, NULL, "!vhci_alloc_path_info: " | |
6486 "ioctl <%s> normal: path_info copyin failed", s)); | |
6487 kmem_free(*upibuf, sizeof (sv_path_info_t) * num_paths); | |
6488 kmem_free(*kpibuf, sizeof (sv_path_info_t) * num_paths); | |
6489 *upibuf = NULL; | |
6490 *kpibuf = NULL; | |
6491 return (retval); | |
6492 } | |
6493 | |
6494 /* | |
6495 * Allocate memory for per path properties. | |
6496 */ | |
6497 for (index = 0, pi = *kpibuf; index < num_paths; index++, pi++) { | |
6498 bufsize = (*upibuf)[index].ret_prop.buf_size; | |
6499 | |
6500 if (bufsize && bufsize <= SV_PROP_MAX_BUF_SIZE) { | |
6501 pi->ret_prop.buf_size = bufsize; | |
6502 pi->ret_prop.buf = (caddr_t) | |
6503 kmem_zalloc(bufsize, KM_SLEEP); | |
6504 ASSERT(pi->ret_prop.buf != NULL); | |
6505 } else { | |
6506 pi->ret_prop.buf_size = 0; | |
6507 pi->ret_prop.buf = NULL; | |
6508 } | |
6509 | |
6510 if ((*upibuf)[index].ret_prop.ret_buf_size != NULL) { | |
6511 pi->ret_prop.ret_buf_size = (uint_t *)kmem_zalloc( | |
6512 sizeof (*pi->ret_prop.ret_buf_size), KM_SLEEP); | |
6513 ASSERT(pi->ret_prop.ret_buf_size != NULL); | |
6514 } else { | |
6515 pi->ret_prop.ret_buf_size = NULL; | |
6516 } | |
6517 } | |
6518 | |
6519 return (0); | |
6520 } | |
6521 | |
6522 | |
6523 /* | |
6524 * Routine to free memory for the path information structures. | |
6525 * This is the memory which was allocated earlier. | |
6526 */ | |
6527 /* ARGSUSED */ | |
6528 static void | |
6529 vhci_ioc_free_pathinfo(sv_path_info_t *upibuf, sv_path_info_t *kpibuf, | |
6530 uint_t num_paths) | |
6531 { | |
6532 sv_path_info_t *pi; | |
6533 int index; | |
6534 | |
6535 /* Free memory for per path properties */ | |
6536 for (index = 0, pi = kpibuf; index < num_paths; index++, pi++) { | |
6537 if (pi->ret_prop.ret_buf_size != NULL) { | |
6538 kmem_free(pi->ret_prop.ret_buf_size, | |
6539 sizeof (*pi->ret_prop.ret_buf_size)); | |
6540 } | |
6541 | |
6542 if (pi->ret_prop.buf != NULL) { | |
6543 kmem_free(pi->ret_prop.buf, pi->ret_prop.buf_size); | |
6544 } | |
6545 } | |
6546 | |
6547 /* Free memory for path info structures */ | |
6548 kmem_free(upibuf, sizeof (sv_path_info_t) * num_paths); | |
6549 kmem_free(kpibuf, sizeof (sv_path_info_t) * num_paths); | |
6550 } | |
6551 | |
6552 | |
6553 /* | |
6554 * Routine to copy path information and path properties to userland. | |
6555 */ | |
6556 /* ARGSUSED */ | |
6557 static int | |
6558 vhci_ioc_send_pathinfo(sv_path_info_t *upibuf, sv_path_info_t *kpibuf, | |
6559 uint_t num_paths, sv_iocdata_t *pioc, int mode, caddr_t s) | |
6560 { | |
6561 int retval = 0, index; | |
6562 sv_path_info_t *upi_ptr; | |
6563 sv_path_info32_t *upi32_ptr; | |
6564 | |
6565 #ifdef _MULTI_DATAMODEL | |
6566 switch (ddi_model_convert_from(mode & FMODELS)) { | |
6567 case DDI_MODEL_ILP32: | |
6568 goto copy_32bit; | |
6569 | |
6570 case DDI_MODEL_NONE: | |
6571 goto copy_normal; | |
6572 } | |
6573 #else /* _MULTI_DATAMODEL */ | |
6574 | |
6575 goto copy_normal; | |
6576 | |
6577 #endif /* _MULTI_DATAMODEL */ | |
6578 | |
6579 copy_normal: | |
6580 | |
6581 /* | |
6582 * Copy path information and path properties to user land. | |
6583 * Pointer fields inside the path property structure were | |
6584 * saved in the 'upibuf' structure earlier. | |
6585 */ | |
6586 upi_ptr = pioc->ret_buf; | |
6587 for (index = 0; index < num_paths; index++) { | |
6588 if (ddi_copyout(kpibuf[index].device.ret_ct, | |
6589 upi_ptr[index].device.ret_ct, MAXPATHLEN, mode)) { | |
6590 retval = EFAULT; | |
6591 break; | |
6592 } | |
6593 | |
6594 if (ddi_copyout(kpibuf[index].ret_addr, | |
6595 upi_ptr[index].ret_addr, MAXNAMELEN, mode)) { | |
6596 retval = EFAULT; | |
6597 break; | |
6598 } | |
6599 | |
6600 if (ddi_copyout(&kpibuf[index].ret_state, | |
6601 &upi_ptr[index].ret_state, sizeof (kpibuf[index].ret_state), | |
6602 mode)) { | |
6603 retval = EFAULT; | |
6604 break; | |
6605 } | |
6606 | |
6607 if (ddi_copyout(&kpibuf[index].ret_ext_state, | |
6608 &upi_ptr[index].ret_ext_state, | |
6609 sizeof (kpibuf[index].ret_ext_state), mode)) { | |
6610 retval = EFAULT; | |
6611 break; | |
6612 } | |
6613 | |
6614 if ((kpibuf[index].ret_prop.ret_buf_size != NULL) && | |
6615 ddi_copyout(kpibuf[index].ret_prop.ret_buf_size, | |
6616 upibuf[index].ret_prop.ret_buf_size, | |
6617 sizeof (*upibuf[index].ret_prop.ret_buf_size), mode)) { | |
6618 retval = EFAULT; | |
6619 break; | |
6620 } | |
6621 | |
6622 if ((kpibuf[index].ret_prop.buf != NULL) && | |
6623 ddi_copyout(kpibuf[index].ret_prop.buf, | |
6624 upibuf[index].ret_prop.buf, | |
6625 upibuf[index].ret_prop.buf_size, mode)) { | |
6626 retval = EFAULT; | |
6627 break; | |
6628 } | |
6629 } | |
6630 | |
6631 #ifdef DEBUG | |
6632 if (retval) { | |
6633 VHCI_DEBUG(2, (CE_WARN, NULL, "!vhci_get_ioc: ioctl <%s> " | |
6634 "normal: path_info copyout failed", s)); | |
6635 } | |
6636 #endif | |
6637 | |
6638 return (retval); | |
6639 | |
6640 copy_32bit: | |
6641 /* | |
6642 * Copy path information and path properties to user land. | |
6643 * Pointer fields inside the path property structure were | |
6644 * saved in the 'upibuf' structure earlier. | |
6645 */ | |
6646 upi32_ptr = (sv_path_info32_t *)pioc->ret_buf; | |
6647 for (index = 0; index < num_paths; index++) { | |
6648 if (ddi_copyout(kpibuf[index].device.ret_ct, | |
6649 upi32_ptr[index].device.ret_ct, MAXPATHLEN, mode)) { | |
6650 retval = EFAULT; | |
6651 break; | |
6652 } | |
6653 | |
6654 if (ddi_copyout(kpibuf[index].ret_addr, | |
6655 upi32_ptr[index].ret_addr, MAXNAMELEN, mode)) { | |
6656 retval = EFAULT; | |
6657 break; | |
6658 } | |
6659 | |
6660 if (ddi_copyout(&kpibuf[index].ret_state, | |
6661 &upi32_ptr[index].ret_state, | |
6662 sizeof (kpibuf[index].ret_state), mode)) { | |
6663 retval = EFAULT; | |
6664 break; | |
6665 } | |
6666 | |
6667 if (ddi_copyout(&kpibuf[index].ret_ext_state, | |
6668 &upi32_ptr[index].ret_ext_state, | |
6669 sizeof (kpibuf[index].ret_ext_state), mode)) { | |
6670 retval = EFAULT; | |
6671 break; | |
6672 } | |
6673 if ((kpibuf[index].ret_prop.ret_buf_size != NULL) && | |
6674 ddi_copyout(kpibuf[index].ret_prop.ret_buf_size, | |
6675 upibuf[index].ret_prop.ret_buf_size, | |
6676 sizeof (*upibuf[index].ret_prop.ret_buf_size), mode)) { | |
6677 retval = EFAULT; | |
6678 break; | |
6679 } | |
6680 | |
6681 if ((kpibuf[index].ret_prop.buf != NULL) && | |
6682 ddi_copyout(kpibuf[index].ret_prop.buf, | |
6683 upibuf[index].ret_prop.buf, | |
6684 upibuf[index].ret_prop.buf_size, mode)) { | |
6685 retval = EFAULT; | |
6686 break; | |
6687 } | |
6688 } | |
6689 | |
6690 #ifdef DEBUG | |
6691 if (retval) { | |
6692 VHCI_DEBUG(2, (CE_WARN, NULL, "!vhci_get_ioc: ioctl <%s> " | |
6693 "normal: path_info copyout failed", s)); | |
6694 } | |
6695 #endif | |
6696 | |
6697 return (retval); | |
6698 } | |
6699 | |
6700 | |
6701 /* | |
6702 * vhci_failover() | |
6703 * This routine expects VHCI_HOLD_LUN before being invoked. It can be invoked | |
6704 * as MDI_FAILOVER_ASYNC or MDI_FAILOVER_SYNC. For Asynchronous failovers | |
6705 * this routine shall VHCI_RELEASE_LUN on exiting. For synchronous failovers | |
6706 * it is the callers responsibility to release lun. | |
6707 */ | |
6708 | |
6709 /* ARGSUSED */ | |
6710 static int | |
6711 vhci_failover(dev_info_t *vdip, dev_info_t *cdip, int flags) | |
6712 { | |
6713 char *guid; | |
6714 scsi_vhci_lun_t *vlun = NULL; | |
6715 struct scsi_vhci *vhci; | |
6716 mdi_pathinfo_t *pip, *npip; | |
6717 char *s_pclass, *pclass1, *pclass2, *pclass; | |
6718 char active_pclass_copy[255], *active_pclass_ptr; | |
6719 char *ptr1, *ptr2; | |
6720 mdi_pathinfo_state_t pi_state; | |
6721 uint32_t pi_ext_state; | |
6722 scsi_vhci_priv_t *svp; | |
6723 struct scsi_device *sd; | |
6724 struct scsi_failover_ops *sfo; | |
6725 int sps; /* mdi_select_path() status */ | |
6726 int activation_done = 0; | |
6727 int rval, retval = MDI_FAILURE; | |
6728 int reserve_pending, check_condition, UA_condition; | |
6729 struct scsi_pkt *pkt; | |
6730 struct buf *bp; | |
6731 | |
6732 vhci = ddi_get_soft_state(vhci_softstate, ddi_get_instance(vdip)); | |
6733 sd = ddi_get_driver_private(cdip); | |
6734 vlun = ADDR2VLUN(&sd->sd_address); | |
6735 ASSERT(vlun != 0); | |
6736 ASSERT(VHCI_LUN_IS_HELD(vlun)); | |
6737 guid = vlun->svl_lun_wwn; | |
6738 VHCI_DEBUG(1, (CE_NOTE, NULL, "!vhci_failover(1): guid %s\n", guid)); | |
6739 vhci_log(CE_NOTE, vdip, "!Initiating failover for device %s " | |
6740 "(GUID %s)", ddi_node_name(cdip), guid); | |
6741 | |
6742 /* | |
6743 * Lets maintain a local copy of the vlun->svl_active_pclass | |
6744 * for the rest of the processing. Accessing the field | |
6745 * directly in the loop below causes loop logic to break | |
6746 * especially when the field gets updated by other threads | |
6747 * update path status etc and causes 'paths are not currently | |
6748 * available' condition to be declared prematurely. | |
6749 */ | |
6750 mutex_enter(&vlun->svl_mutex); | |
6751 if (vlun->svl_active_pclass != NULL) { | |
6752 (void) strlcpy(active_pclass_copy, vlun->svl_active_pclass, | |
6753 sizeof (active_pclass_copy)); | |
6754 active_pclass_ptr = &active_pclass_copy[0]; | |
6755 mutex_exit(&vlun->svl_mutex); | |
6756 if (vhci_quiesce_paths(vdip, cdip, vlun, guid, | |
6757 active_pclass_ptr) != 0) { | |
6758 retval = MDI_FAILURE; | |
6759 } | |
6760 } else { | |
6761 /* | |
6762 * can happen only when the available path to device | |
6763 * discovered is a STANDBY path. | |
6764 */ | |
6765 mutex_exit(&vlun->svl_mutex); | |
6766 active_pclass_copy[0] = '\0'; | |
6767 active_pclass_ptr = NULL; | |
6768 } | |
6769 | |
6770 sfo = vlun->svl_fops; | |
6771 ASSERT(sfo != NULL); | |
6772 pclass1 = s_pclass = active_pclass_ptr; | |
6773 VHCI_DEBUG(1, (CE_NOTE, NULL, "!(%s)failing over from %s\n", guid, | |
6774 (s_pclass == NULL ? "<none>" : s_pclass))); | |
6775 | |
6776 next_pathclass: | |
6777 | |
6941
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
rralphs
parents:
6777
diff
changeset
|
6778 rval = sfo->sfo_pathclass_next(pclass1, &pclass2, |
4851 | 6779 vlun->svl_fops_ctpriv); |
6780 if (rval == ENOENT) { | |
6781 if (s_pclass == NULL) { | |
6782 VHCI_DEBUG(1, (CE_NOTE, NULL, "!vhci_failover(4)(%s): " | |
6783 "failed, no more pathclasses\n", guid)); | |
6784 goto done; | |
6785 } else { | |
6941
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
rralphs
parents:
6777
diff
changeset
|
6786 (void) sfo->sfo_pathclass_next(NULL, &pclass2, |
4851 | 6787 vlun->svl_fops_ctpriv); |
6788 } | |
6789 } else if (rval == EINVAL) { | |
6790 vhci_log(CE_NOTE, vdip, "!Failover operation failed for " | |
6791 "device %s (GUID %s): Invalid path-class %s", | |
6792 ddi_node_name(cdip), guid, | |
6793 ((pclass1 == NULL) ? "<none>" : pclass1)); | |
6794 goto done; | |
6795 } | |
6796 if ((s_pclass != NULL) && (strcmp(pclass2, s_pclass) == 0)) { | |
6797 /* | |
6798 * paths are not currently available | |
6799 */ | |
6800 vhci_log(CE_NOTE, vdip, "!Failover path currently unavailable" | |
6801 " for device %s (GUID %s)", | |
6802 ddi_node_name(cdip), guid); | |
6803 goto done; | |
6804 } | |
6805 pip = npip = NULL; | |
6806 VHCI_DEBUG(1, (CE_NOTE, NULL, "!vhci_failover(5.2)(%s): considering " | |
6807 "%s as failover destination\n", guid, pclass2)); | |
6808 sps = mdi_select_path(cdip, NULL, MDI_SELECT_STANDBY_PATH, NULL, &npip); | |
6809 if ((npip == NULL) || (sps != MDI_SUCCESS)) { | |
6810 VHCI_DEBUG(1, (CE_NOTE, NULL, "!vhci_failover(%s): no " | |
6811 "STANDBY paths found (status:%x)!\n", guid, sps)); | |
6812 pclass1 = pclass2; | |
6813 goto next_pathclass; | |
6814 } | |
6815 do { | |
6816 pclass = NULL; | |
6817 if ((mdi_prop_lookup_string(npip, "path-class", | |
6818 &pclass) != MDI_SUCCESS) || (strcmp(pclass2, | |
6819 pclass) != 0)) { | |
6820 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
6821 "!vhci_failover(5.5)(%s): skipping path " | |
6822 "%p(%s)...\n", guid, (void *)npip, pclass)); | |
6823 pip = npip; | |
6824 sps = mdi_select_path(cdip, NULL, | |
6825 MDI_SELECT_STANDBY_PATH, pip, &npip); | |
6826 mdi_rele_path(pip); | |
6827 (void) mdi_prop_free(pclass); | |
6828 continue; | |
6829 } | |
6830 svp = (scsi_vhci_priv_t *)mdi_pi_get_vhci_private(npip); | |
6831 | |
6832 /* | |
6833 * Issue READ at non-zer block on this STANDBY path. | |
6834 * Purple returns | |
6835 * 1. RESERVATION_CONFLICT if reservation is pending | |
6836 * 2. POR check condition if it reset happened. | |
6837 * 2. failover Check Conditions if one is already in progress. | |
6838 */ | |
6839 reserve_pending = 0; | |
6840 check_condition = 0; | |
6841 UA_condition = 0; | |
6842 | |
6843 bp = scsi_alloc_consistent_buf(&svp->svp_psd->sd_address, | |
6844 (struct buf *)NULL, DEV_BSIZE, B_READ, NULL, NULL); | |
6845 if (!bp) { | |
6846 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
6847 "vhci_failover !No resources (buf)\n")); | |
6848 mdi_rele_path(npip); | |
6849 goto done; | |
6850 } | |
6851 pkt = scsi_init_pkt(&svp->svp_psd->sd_address, NULL, bp, | |
6852 CDB_GROUP1, sizeof (struct scsi_arq_status), 0, | |
6853 PKT_CONSISTENT, NULL, NULL); | |
6854 if (pkt) { | |
6855 (void) scsi_setup_cdb((union scsi_cdb *)(uintptr_t) | |
6856 pkt->pkt_cdbp, SCMD_READ, 1, 1, 0); | |
6857 pkt->pkt_flags = FLAG_NOINTR; | |
6858 check_path_again: | |
6640
c92ca9b95b9c
PSARC/2007/522 Disk enumeration for Sun Fire X4200 and X4200 M2
cth
parents:
6042
diff
changeset
|
6859 pkt->pkt_path_instance = mdi_pi_get_path_instance(npip); |
4851 | 6860 pkt->pkt_time = 3*30; |
6640
c92ca9b95b9c
PSARC/2007/522 Disk enumeration for Sun Fire X4200 and X4200 M2
cth
parents:
6042
diff
changeset
|
6861 |
4851 | 6862 if (scsi_transport(pkt) == TRAN_ACCEPT) { |
6863 switch (pkt->pkt_reason) { | |
6864 case CMD_CMPLT: | |
6865 switch (SCBP_C(pkt)) { | |
6866 case STATUS_GOOD: | |
6867 /* Already failed over */ | |
6868 activation_done = 1; | |
6869 break; | |
6870 case STATUS_RESERVATION_CONFLICT: | |
6871 reserve_pending = 1; | |
6872 break; | |
6873 case STATUS_CHECK: | |
6874 check_condition = 1; | |
6875 break; | |
6876 } | |
6877 } | |
6878 } | |
6879 if (check_condition && | |
6880 (pkt->pkt_state & STATE_ARQ_DONE)) { | |
6881 struct scsi_extended_sense *sns = | |
6882 &(((struct scsi_arq_status *)(uintptr_t) | |
6883 (pkt->pkt_scbp))->sts_sensedata); | |
6884 if (sns->es_key == KEY_UNIT_ATTENTION && | |
6885 sns->es_add_code == 0x29) { | |
6886 /* Already failed over */ | |
6887 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
6888 "!vhci_failover(7)(%s): " | |
6889 "path 0x%p POR UA condition\n", | |
6890 guid, (void *)npip)); | |
6891 if (UA_condition == 0) { | |
6892 UA_condition = 1; | |
6893 goto check_path_again; | |
6894 } | |
6895 } else { | |
6896 activation_done = 0; | |
6897 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
6898 "!vhci_failover(%s): path 0x%p " | |
6899 "unhandled chkcond %x %x %x\n", | |
6900 guid, (void *)npip, sns->es_key, | |
6901 sns->es_add_code, | |
6902 sns->es_qual_code)); | |
6903 } | |
6904 } | |
6905 scsi_destroy_pkt(pkt); | |
6906 } | |
6907 scsi_free_consistent_buf(bp); | |
6908 | |
6909 if (activation_done) { | |
6910 mdi_rele_path(npip); | |
6911 VHCI_DEBUG(1, (CE_NOTE, NULL, "!vhci_failover(7)(%s): " | |
6912 "path 0x%p already failedover\n", guid, | |
6913 (void *)npip)); | |
6914 break; | |
6915 } | |
6916 if (reserve_pending && (vlun->svl_xlf_capable == 0)) { | |
6917 (void) vhci_recovery_reset(vlun, | |
6918 &svp->svp_psd->sd_address, | |
6919 FALSE, VHCI_DEPTH_ALL); | |
6920 } | |
6921 VHCI_DEBUG(1, (CE_NOTE, NULL, "!vhci_failover(6)(%s): " | |
6922 "activating path 0x%p(psd:%p)\n", guid, (void *)npip, | |
6923 (void *)svp->svp_psd)); | |
6941
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
rralphs
parents:
6777
diff
changeset
|
6924 if (sfo->sfo_path_activate(svp->svp_psd, pclass2, |
4851 | 6925 vlun->svl_fops_ctpriv) == 0) { |
6926 activation_done = 1; | |
6927 mdi_rele_path(npip); | |
6928 VHCI_DEBUG(1, (CE_NOTE, NULL, "!vhci_failover(7)(%s): " | |
6929 "path 0x%p successfully activated\n", guid, | |
6930 (void *)npip)); | |
6931 break; | |
6932 } | |
6933 pip = npip; | |
6934 sps = mdi_select_path(cdip, NULL, MDI_SELECT_STANDBY_PATH, | |
6935 pip, &npip); | |
6936 mdi_rele_path(pip); | |
6937 } while ((npip != NULL) && (sps == MDI_SUCCESS)); | |
6938 if (activation_done == 0) { | |
6939 pclass1 = pclass2; | |
6940 goto next_pathclass; | |
6941 } | |
6942 | |
6943 /* | |
6944 * if we are here, we have succeeded in activating path npip of | |
6945 * pathclass pclass2; let us validate all paths of pclass2 by | |
6946 * "ping"-ing each one and mark the good ones ONLINE | |
6947 * Also, set the state of the paths belonging to the previously | |
6948 * active pathclass to STANDBY | |
6949 */ | |
6950 pip = npip = NULL; | |
6951 sps = mdi_select_path(cdip, NULL, (MDI_SELECT_ONLINE_PATH | | |
6952 MDI_SELECT_STANDBY_PATH | MDI_SELECT_USER_DISABLE_PATH), | |
6953 NULL, &npip); | |
6954 if (npip == NULL || sps != MDI_SUCCESS) { | |
6955 VHCI_DEBUG(1, (CE_NOTE, NULL, "!Failover operation failed for " | |
6956 "device %s (GUID %s): paths may be busy\n", | |
6957 ddi_node_name(cdip), guid)); | |
6958 goto done; | |
6959 } | |
6960 do { | |
6961 (void) mdi_pi_get_state2(npip, &pi_state, &pi_ext_state); | |
6962 if (mdi_prop_lookup_string(npip, "path-class", &pclass) | |
6963 != MDI_SUCCESS) { | |
6964 pip = npip; | |
6965 sps = mdi_select_path(cdip, NULL, | |
6966 (MDI_SELECT_ONLINE_PATH | | |
6967 MDI_SELECT_STANDBY_PATH | | |
6968 MDI_SELECT_USER_DISABLE_PATH), | |
6969 pip, &npip); | |
6970 mdi_rele_path(pip); | |
6971 continue; | |
6972 } | |
6973 if (strcmp(pclass, pclass2) == 0) { | |
6974 if (pi_state == MDI_PATHINFO_STATE_STANDBY) { | |
6975 svp = (scsi_vhci_priv_t *) | |
6976 mdi_pi_get_vhci_private(npip); | |
6977 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
6978 "!vhci_failover(8)(%s): " | |
6979 "pinging path 0x%p\n", | |
6980 guid, (void *)npip)); | |
6941
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
rralphs
parents:
6777
diff
changeset
|
6981 if (sfo->sfo_path_ping(svp->svp_psd, |
4851 | 6982 vlun->svl_fops_ctpriv) == 1) { |
6983 mdi_pi_set_state(npip, | |
6984 MDI_PATHINFO_STATE_ONLINE); | |
6985 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
6986 "!vhci_failover(9)(%s): " | |
6987 "path 0x%p ping successful, " | |
6988 "marked online\n", guid, | |
6989 (void *)npip)); | |
6990 MDI_PI_ERRSTAT(npip, MDI_PI_FAILTO); | |
6991 } | |
6992 } | |
6993 } else if ((s_pclass != NULL) && (strcmp(pclass, s_pclass) | |
6994 == 0)) { | |
6995 if (pi_state == MDI_PATHINFO_STATE_ONLINE) { | |
6996 mdi_pi_set_state(npip, | |
6997 MDI_PATHINFO_STATE_STANDBY); | |
6998 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
6999 "!vhci_failover(10)(%s): path 0x%p marked " | |
7000 "STANDBY\n", guid, (void *)npip)); | |
7001 MDI_PI_ERRSTAT(npip, MDI_PI_FAILFROM); | |
7002 } | |
7003 } | |
7004 (void) mdi_prop_free(pclass); | |
7005 pip = npip; | |
7006 sps = mdi_select_path(cdip, NULL, (MDI_SELECT_ONLINE_PATH | | |
7007 MDI_SELECT_STANDBY_PATH|MDI_SELECT_USER_DISABLE_PATH), | |
7008 pip, &npip); | |
7009 mdi_rele_path(pip); | |
7010 } while ((npip != NULL) && (sps == MDI_SUCCESS)); | |
7011 | |
7012 /* | |
7013 * Update the AccessState of related MP-API TPGs | |
7014 */ | |
7015 (void) vhci_mpapi_update_tpg_acc_state_for_lu(vhci, vlun); | |
7016 | |
7017 vhci_log(CE_NOTE, vdip, "!Failover operation completed successfully " | |
7018 "for device %s (GUID %s): failed over from %s to %s", | |
7019 ddi_node_name(cdip), guid, ((s_pclass == NULL) ? "<none>" : | |
7020 s_pclass), pclass2); | |
7021 ptr1 = kmem_alloc(strlen(pclass2)+1, KM_SLEEP); | |
7022 (void) strlcpy(ptr1, pclass2, (strlen(pclass2)+1)); | |
7023 mutex_enter(&vlun->svl_mutex); | |
7024 ptr2 = vlun->svl_active_pclass; | |
7025 vlun->svl_active_pclass = ptr1; | |
7026 mutex_exit(&vlun->svl_mutex); | |
7027 if (ptr2) { | |
7028 kmem_free(ptr2, strlen(ptr2)+1); | |
7029 } | |
7030 mutex_enter(&vhci->vhci_mutex); | |
7031 scsi_hba_reset_notify_callback(&vhci->vhci_mutex, | |
7032 &vhci->vhci_reset_notify_listf); | |
7033 /* All reservations are cleared upon these resets. */ | |
7034 vlun->svl_flags &= ~VLUN_RESERVE_ACTIVE_FLG; | |
7035 mutex_exit(&vhci->vhci_mutex); | |
7036 VHCI_DEBUG(1, (CE_NOTE, NULL, "!vhci_failover(11): DONE! Active " | |
7037 "pathclass for %s is now %s\n", guid, pclass2)); | |
7038 retval = MDI_SUCCESS; | |
7039 | |
7040 done: | |
7041 if (flags == MDI_FAILOVER_ASYNC) { | |
7042 VHCI_RELEASE_LUN(vlun); | |
7043 VHCI_DEBUG(6, (CE_NOTE, NULL, "!vhci_failover(12): DONE! " | |
7044 "releasing lun, as failover was ASYNC\n")); | |
7045 } else { | |
7046 VHCI_DEBUG(6, (CE_NOTE, NULL, "!vhci_failover(12): DONE! " | |
7047 "NOT releasing lun, as failover was SYNC\n")); | |
7048 } | |
7049 return (retval); | |
7050 } | |
7051 | |
7052 /* | |
7053 * vhci_client_attached is called after the successful attach of a | |
7054 * client devinfo node. | |
7055 */ | |
7056 static void | |
7057 vhci_client_attached(dev_info_t *cdip) | |
7058 { | |
7059 mdi_pathinfo_t *pip; | |
7060 int circular; | |
7061 | |
7062 /* | |
7063 * At this point the client has attached and it's instance number is | |
7064 * valid, so we can set up kstats. We need to do this here because it | |
7065 * is possible for paths to go online prior to client attach, in which | |
7066 * case the call to vhci_kstat_create_pathinfo in vhci_pathinfo_online | |
7067 * was a noop. | |
7068 */ | |
7069 ndi_devi_enter(cdip, &circular); | |
7070 for (pip = mdi_get_next_phci_path(cdip, NULL); pip; | |
7071 pip = mdi_get_next_phci_path(cdip, pip)) | |
7072 vhci_kstat_create_pathinfo(pip); | |
7073 ndi_devi_exit(cdip, circular); | |
7074 } | |
7075 | |
7076 /* | |
7077 * quiesce all of the online paths | |
7078 */ | |
7079 static int | |
7080 vhci_quiesce_paths(dev_info_t *vdip, dev_info_t *cdip, scsi_vhci_lun_t *vlun, | |
7081 char *guid, char *active_pclass_ptr) | |
7082 { | |
7083 scsi_vhci_priv_t *svp; | |
7084 char *s_pclass = NULL; | |
7085 mdi_pathinfo_t *npip, *pip; | |
7086 int sps; | |
7087 | |
7088 /* quiesce currently active paths */ | |
7089 s_pclass = NULL; | |
7090 pip = npip = NULL; | |
7091 sps = mdi_select_path(cdip, NULL, MDI_SELECT_ONLINE_PATH, NULL, &npip); | |
7092 if ((npip == NULL) || (sps != MDI_SUCCESS)) { | |
7093 return (1); | |
7094 } | |
7095 do { | |
7096 if (mdi_prop_lookup_string(npip, "path-class", | |
7097 &s_pclass) != MDI_SUCCESS) { | |
7098 mdi_rele_path(npip); | |
7099 vhci_log(CE_NOTE, vdip, "!Failover operation failed " | |
7100 "for device %s (GUID %s) due to an internal " | |
7101 "error", ddi_node_name(cdip), guid); | |
7102 return (1); | |
7103 } | |
7104 if (strcmp(s_pclass, active_pclass_ptr) == 0) { | |
7105 /* | |
7106 * quiesce path. Free s_pclass since | |
7107 * we don't need it anymore | |
7108 */ | |
7109 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
7110 "!vhci_failover(2)(%s): failing over " | |
7111 "from %s; quiescing path %p\n", | |
7112 guid, s_pclass, (void *)npip)); | |
7113 (void) mdi_prop_free(s_pclass); | |
7114 svp = (scsi_vhci_priv_t *) | |
7115 mdi_pi_get_vhci_private(npip); | |
7116 if (svp == NULL) { | |
7117 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
7118 "!vhci_failover(2.5)(%s): no " | |
7119 "client priv! %p offlined?\n", | |
7120 guid, (void *)npip)); | |
7121 pip = npip; | |
7122 sps = mdi_select_path(cdip, NULL, | |
7123 MDI_SELECT_ONLINE_PATH, pip, &npip); | |
7124 mdi_rele_path(pip); | |
7125 continue; | |
7126 } | |
7127 if (scsi_abort(&svp->svp_psd->sd_address, NULL) | |
7128 == 0) { | |
7129 (void) vhci_recovery_reset(vlun, | |
7130 &svp->svp_psd->sd_address, FALSE, | |
7131 VHCI_DEPTH_TARGET); | |
7132 } | |
7133 mutex_enter(&svp->svp_mutex); | |
7134 if (svp->svp_cmds == 0) { | |
7135 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
7136 "!vhci_failover(3)(%s):" | |
7137 "quiesced path %p\n", guid, (void *)npip)); | |
7138 } else { | |
7139 while (svp->svp_cmds != 0) { | |
7140 cv_wait(&svp->svp_cv, &svp->svp_mutex); | |
7141 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
7142 "!vhci_failover(3.cv)(%s):" | |
7143 "quiesced path %p\n", guid, | |
7144 (void *)npip)); | |
7145 } | |
7146 } | |
7147 mutex_exit(&svp->svp_mutex); | |
7148 } else { | |
7149 /* | |
7150 * make sure we freeup the memory | |
7151 */ | |
7152 (void) mdi_prop_free(s_pclass); | |
7153 } | |
7154 pip = npip; | |
7155 sps = mdi_select_path(cdip, NULL, MDI_SELECT_ONLINE_PATH, | |
7156 pip, &npip); | |
7157 mdi_rele_path(pip); | |
7158 } while ((npip != NULL) && (sps == MDI_SUCCESS)); | |
7159 return (0); | |
7160 } | |
7161 | |
7162 static struct scsi_vhci_lun * | |
7163 vhci_lun_lookup(dev_info_t *tgt_dip) | |
7164 { | |
7165 return ((struct scsi_vhci_lun *) | |
7166 mdi_client_get_vhci_private(tgt_dip)); | |
7167 } | |
7168 | |
7169 static struct scsi_vhci_lun * | |
7170 vhci_lun_lookup_alloc(dev_info_t *tgt_dip, char *guid, int *didalloc) | |
7171 { | |
7172 struct scsi_vhci_lun *svl; | |
7173 | |
7174 if (svl = vhci_lun_lookup(tgt_dip)) { | |
7175 return (svl); | |
7176 } | |
7177 | |
7178 svl = kmem_zalloc(sizeof (*svl), KM_SLEEP); | |
7179 svl->svl_lun_wwn = kmem_zalloc(strlen(guid)+1, KM_SLEEP); | |
7180 (void) strcpy(svl->svl_lun_wwn, guid); | |
7181 mutex_init(&svl->svl_mutex, NULL, MUTEX_DRIVER, NULL); | |
7182 cv_init(&svl->svl_cv, NULL, CV_DRIVER, NULL); | |
7183 sema_init(&svl->svl_pgr_sema, 1, NULL, SEMA_DRIVER, NULL); | |
7184 svl->svl_waiting_for_activepath = 1; | |
7185 svl->svl_sector_size = 1; | |
7186 mdi_client_set_vhci_private(tgt_dip, svl); | |
7187 *didalloc = 1; | |
7188 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
7189 "vhci_lun_lookup_alloc: guid %s vlun 0x%p\n", | |
7190 guid, (void *)svl)); | |
7191 return (svl); | |
7192 } | |
7193 | |
7194 static void | |
7195 vhci_lun_free(dev_info_t *tgt_dip) | |
7196 { | |
7197 struct scsi_vhci_lun *dvlp; | |
7198 char *guid; | |
4882
272a171bc996
6531069 SCSI2 (tc_mhioctkown test cases) testing are showing UNRESOLVED results for ST2530
jw149990
parents:
4851
diff
changeset
|
7199 struct scsi_device *sd; |
272a171bc996
6531069 SCSI2 (tc_mhioctkown test cases) testing are showing UNRESOLVED results for ST2530
jw149990
parents:
4851
diff
changeset
|
7200 |
272a171bc996
6531069 SCSI2 (tc_mhioctkown test cases) testing are showing UNRESOLVED results for ST2530
jw149990
parents:
4851
diff
changeset
|
7201 /* |
272a171bc996
6531069 SCSI2 (tc_mhioctkown test cases) testing are showing UNRESOLVED results for ST2530
jw149990
parents:
4851
diff
changeset
|
7202 * The scsi_device was set to driver private during child node |
272a171bc996
6531069 SCSI2 (tc_mhioctkown test cases) testing are showing UNRESOLVED results for ST2530
jw149990
parents:
4851
diff
changeset
|
7203 * initialization in the scsi_hba_bus_ctl(). |
272a171bc996
6531069 SCSI2 (tc_mhioctkown test cases) testing are showing UNRESOLVED results for ST2530
jw149990
parents:
4851
diff
changeset
|
7204 */ |
272a171bc996
6531069 SCSI2 (tc_mhioctkown test cases) testing are showing UNRESOLVED results for ST2530
jw149990
parents:
4851
diff
changeset
|
7205 sd = (struct scsi_device *)ddi_get_driver_private(tgt_dip); |
4851 | 7206 |
7207 dvlp = (struct scsi_vhci_lun *) | |
7208 mdi_client_get_vhci_private(tgt_dip); | |
7209 ASSERT(dvlp != NULL); | |
7210 | |
7211 mdi_client_set_vhci_private(tgt_dip, NULL); | |
7212 | |
7213 guid = dvlp->svl_lun_wwn; | |
7214 ASSERT(guid != NULL); | |
7215 VHCI_DEBUG(4, (CE_NOTE, NULL, "!vhci_lun_free: %s\n", guid)); | |
7216 | |
7217 mutex_enter(&dvlp->svl_mutex); | |
7218 if (dvlp->svl_active_pclass != NULL) { | |
7219 kmem_free(dvlp->svl_active_pclass, | |
7220 strlen(dvlp->svl_active_pclass)+1); | |
7221 } | |
7222 dvlp->svl_active_pclass = NULL; | |
7223 mutex_exit(&dvlp->svl_mutex); | |
7224 | |
7225 if (dvlp->svl_lun_wwn != NULL) { | |
7226 kmem_free(dvlp->svl_lun_wwn, strlen(dvlp->svl_lun_wwn)+1); | |
7227 } | |
7228 dvlp->svl_lun_wwn = NULL; | |
7229 | |
7230 if (dvlp->svl_fops_name) { | |
7231 kmem_free(dvlp->svl_fops_name, strlen(dvlp->svl_fops_name)+1); | |
7232 } | |
7233 dvlp->svl_fops_name = NULL; | |
7234 | |
6023
9adf47ae28c4
6634757 add support for the HDS midrange array subsystem
cm136836
parents:
4949
diff
changeset
|
7235 if (dvlp->svl_fops_ctpriv != NULL) { |
9adf47ae28c4
6634757 add support for the HDS midrange array subsystem
cm136836
parents:
4949
diff
changeset
|
7236 dvlp->svl_fops->sfo_device_unprobe(sd, dvlp->svl_fops_ctpriv); |
9adf47ae28c4
6634757 add support for the HDS midrange array subsystem
cm136836
parents:
4949
diff
changeset
|
7237 } |
9adf47ae28c4
6634757 add support for the HDS midrange array subsystem
cm136836
parents:
4949
diff
changeset
|
7238 |
4851 | 7239 if (dvlp->svl_flags & VLUN_TASK_D_ALIVE_FLG) |
7240 taskq_destroy(dvlp->svl_taskq); | |
7241 | |
7242 mutex_destroy(&dvlp->svl_mutex); | |
7243 cv_destroy(&dvlp->svl_cv); | |
7244 sema_destroy(&dvlp->svl_pgr_sema); | |
7245 kmem_free(dvlp, sizeof (*dvlp)); | |
4896
ff3edba9ce8c
6594084 fixing of 6591973 could cause system panic.
jw149990
parents:
4882
diff
changeset
|
7246 /* |
ff3edba9ce8c
6594084 fixing of 6591973 could cause system panic.
jw149990
parents:
4882
diff
changeset
|
7247 * vhci_lun_free may be called before the tgt_dip |
ff3edba9ce8c
6594084 fixing of 6591973 could cause system panic.
jw149990
parents:
4882
diff
changeset
|
7248 * initialization so check if the sd is NULL. |
ff3edba9ce8c
6594084 fixing of 6591973 could cause system panic.
jw149990
parents:
4882
diff
changeset
|
7249 */ |
ff3edba9ce8c
6594084 fixing of 6591973 could cause system panic.
jw149990
parents:
4882
diff
changeset
|
7250 if (sd != NULL) |
ff3edba9ce8c
6594084 fixing of 6591973 could cause system panic.
jw149990
parents:
4882
diff
changeset
|
7251 sd->sd_address.a_hba_tran->tran_tgt_private = NULL; |
4851 | 7252 } |
7253 | |
7254 | |
7255 int | |
7256 vhci_do_scsi_cmd(struct scsi_pkt *pkt) | |
7257 { | |
7258 int err = 0; | |
7259 int retry_cnt = 0; | |
7260 struct scsi_extended_sense *sns; | |
7261 | |
6941
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
rralphs
parents:
6777
diff
changeset
|
7262 #ifdef DEBUG |
6962
225346ebbb42
6719151 scsi_vhci debug kernels spews a *lot* on the console during boot
rralphs
parents:
6941
diff
changeset
|
7263 if (vhci_debug > 5) { |
225346ebbb42
6719151 scsi_vhci debug kernels spews a *lot* on the console during boot
rralphs
parents:
6941
diff
changeset
|
7264 vhci_print_cdb(pkt->pkt_address.a_hba_tran->tran_hba_dip, |
225346ebbb42
6719151 scsi_vhci debug kernels spews a *lot* on the console during boot
rralphs
parents:
6941
diff
changeset
|
7265 CE_WARN, "Vhci command", pkt->pkt_cdbp); |
225346ebbb42
6719151 scsi_vhci debug kernels spews a *lot* on the console during boot
rralphs
parents:
6941
diff
changeset
|
7266 } |
6941
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
rralphs
parents:
6777
diff
changeset
|
7267 #endif |
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
rralphs
parents:
6777
diff
changeset
|
7268 |
4851 | 7269 retry: |
7270 err = scsi_poll(pkt); | |
7271 if (err) { | |
7272 if (pkt->pkt_cdbp[0] == SCMD_RELEASE) { | |
7273 if (SCBP_C(pkt) == STATUS_RESERVATION_CONFLICT) { | |
7274 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
7275 "!v_s_do_s_c: RELEASE conflict\n")); | |
7276 return (0); | |
7277 } | |
7278 } | |
7279 if (retry_cnt++ < 3) { | |
7280 VHCI_DEBUG(1, (CE_WARN, NULL, | |
7281 "!v_s_do_s_c:retry packet 0x%p " | |
7282 "status 0x%x reason %s", | |
7283 (void *)pkt, SCBP_C(pkt), | |
7284 scsi_rname(pkt->pkt_reason))); | |
7285 if ((pkt->pkt_reason == CMD_CMPLT) && | |
7286 (SCBP_C(pkt) == STATUS_CHECK) && | |
7287 (pkt->pkt_state & STATE_ARQ_DONE)) { | |
7288 sns = &(((struct scsi_arq_status *)(uintptr_t) | |
7289 (pkt->pkt_scbp))->sts_sensedata); | |
7290 VHCI_DEBUG(1, (CE_WARN, NULL, | |
7291 "!v_s_do_s_c:retry " | |
7292 "packet 0x%p sense data %s", (void *)pkt, | |
7293 scsi_sname(sns->es_key))); | |
7294 } | |
7295 goto retry; | |
7296 } | |
7297 VHCI_DEBUG(1, (CE_WARN, NULL, | |
7298 "!v_s_do_s_c: failed transport 0x%p 0x%x", | |
7299 (void *)pkt, SCBP_C(pkt))); | |
7300 return (0); | |
7301 } | |
7302 | |
7303 switch (pkt->pkt_reason) { | |
7304 case CMD_TIMEOUT: | |
7305 VHCI_DEBUG(1, (CE_WARN, NULL, "!pkt timed " | |
7306 "out (pkt 0x%p)", (void *)pkt)); | |
7307 return (0); | |
7308 case CMD_CMPLT: | |
7309 switch (SCBP_C(pkt)) { | |
7310 case STATUS_GOOD: | |
7311 break; | |
7312 case STATUS_CHECK: | |
7313 if (pkt->pkt_state & STATE_ARQ_DONE) { | |
7314 sns = &((( | |
7315 struct scsi_arq_status *) | |
7316 (uintptr_t) | |
7317 (pkt->pkt_scbp))-> | |
7318 sts_sensedata); | |
7319 if ((sns->es_key == | |
7320 KEY_UNIT_ATTENTION) || | |
7321 (sns->es_key == | |
7322 KEY_NOT_READY)) { | |
7323 /* | |
7324 * clear unit attn. | |
7325 */ | |
7326 | |
7327 VHCI_DEBUG(1, | |
7328 (CE_WARN, NULL, | |
7329 "!v_s_do_s_c: " | |
7330 "retry " | |
7331 "packet 0x%p sense " | |
7332 "data %s", | |
7333 (void *)pkt, | |
7334 scsi_sname | |
7335 (sns->es_key))); | |
7336 goto retry; | |
7337 } | |
7338 VHCI_DEBUG(4, (CE_WARN, NULL, | |
7339 "!ARQ while " | |
7340 "transporting " | |
7341 "(pkt 0x%p)", | |
7342 (void *)pkt)); | |
7343 return (0); | |
7344 } | |
7345 return (0); | |
7346 default: | |
7347 VHCI_DEBUG(1, (CE_WARN, NULL, | |
7348 "!Bad status returned " | |
7349 "(pkt 0x%p, status %x)", | |
7350 (void *)pkt, SCBP_C(pkt))); | |
7351 return (0); | |
7352 } | |
7353 break; | |
7354 case CMD_INCOMPLETE: | |
7355 case CMD_RESET: | |
7356 case CMD_ABORTED: | |
7357 case CMD_TRAN_ERR: | |
7358 if (retry_cnt++ < 1) { | |
7359 VHCI_DEBUG(1, (CE_WARN, NULL, | |
7360 "!v_s_do_s_c: retry packet 0x%p %s", | |
7361 (void *)pkt, scsi_rname(pkt->pkt_reason))); | |
7362 goto retry; | |
7363 } | |
7364 /* FALLTHROUGH */ | |
7365 default: | |
7366 VHCI_DEBUG(1, (CE_WARN, NULL, "!pkt did not " | |
7367 "complete successfully (pkt 0x%p," | |
7368 "reason %x)", (void *)pkt, pkt->pkt_reason)); | |
7369 return (0); | |
7370 } | |
7371 return (1); | |
7372 } | |
7373 | |
7374 static int | |
7375 vhci_quiesce_lun(struct scsi_vhci_lun *vlun) | |
7376 { | |
7377 mdi_pathinfo_t *pip, *spip; | |
7378 dev_info_t *cdip; | |
7379 struct scsi_vhci_priv *svp; | |
7380 mdi_pathinfo_state_t pstate; | |
7381 uint32_t p_ext_state; | |
7382 int circular; | |
7383 | |
7384 cdip = vlun->svl_dip; | |
7385 pip = spip = NULL; | |
7386 ndi_devi_enter(cdip, &circular); | |
7387 pip = mdi_get_next_phci_path(cdip, NULL); | |
7388 while (pip != NULL) { | |
7389 (void) mdi_pi_get_state2(pip, &pstate, &p_ext_state); | |
7390 if (pstate != MDI_PATHINFO_STATE_ONLINE) { | |
7391 spip = pip; | |
7392 pip = mdi_get_next_phci_path(cdip, spip); | |
7393 continue; | |
7394 } | |
7395 mdi_hold_path(pip); | |
7396 ndi_devi_exit(cdip, circular); | |
7397 svp = (scsi_vhci_priv_t *)mdi_pi_get_vhci_private(pip); | |
7398 mutex_enter(&svp->svp_mutex); | |
7399 while (svp->svp_cmds != 0) { | |
7400 if (cv_timedwait(&svp->svp_cv, &svp->svp_mutex, | |
7401 ddi_get_lbolt() + drv_usectohz | |
7402 (vhci_path_quiesce_timeout * 1000000)) == -1) { | |
7403 mutex_exit(&svp->svp_mutex); | |
7404 mdi_rele_path(pip); | |
7405 VHCI_DEBUG(1, (CE_WARN, NULL, | |
7406 "Quiesce of lun is not successful " | |
7407 "vlun: 0x%p.", (void *)vlun)); | |
7408 return (0); | |
7409 } | |
7410 } | |
7411 mutex_exit(&svp->svp_mutex); | |
7412 ndi_devi_enter(cdip, &circular); | |
7413 spip = pip; | |
7414 pip = mdi_get_next_phci_path(cdip, spip); | |
7415 mdi_rele_path(spip); | |
7416 } | |
7417 ndi_devi_exit(cdip, circular); | |
7418 return (1); | |
7419 } | |
7420 | |
7421 static int | |
7422 vhci_pgr_validate_and_register(scsi_vhci_priv_t *svp) | |
7423 { | |
7424 scsi_vhci_lun_t *vlun; | |
7425 vhci_prout_t *prout; | |
7426 int rval, success; | |
7427 mdi_pathinfo_t *pip, *npip; | |
7428 scsi_vhci_priv_t *osvp; | |
7429 dev_info_t *cdip; | |
7430 uchar_t cdb_1; | |
7431 uchar_t temp_res_key[MHIOC_RESV_KEY_SIZE]; | |
7432 | |
7433 | |
7434 /* | |
7435 * see if there are any other paths available; if none, | |
7436 * then there is nothing to do. | |
7437 */ | |
7438 cdip = svp->svp_svl->svl_dip; | |
7439 rval = mdi_select_path(cdip, NULL, MDI_SELECT_ONLINE_PATH | | |
7440 MDI_SELECT_STANDBY_PATH, NULL, &pip); | |
7441 if ((rval != MDI_SUCCESS) || (pip == NULL)) { | |
7442 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
7443 "%s%d: vhci_pgr_validate_and_register: first path\n", | |
7444 ddi_driver_name(cdip), ddi_get_instance(cdip))); | |
7445 return (1); | |
7446 } | |
7447 | |
7448 vlun = svp->svp_svl; | |
7449 prout = &vlun->svl_prout; | |
7450 ASSERT(vlun->svl_pgr_active != 0); | |
7451 | |
7452 /* | |
7453 * When the path was busy/offlined, some other host might have | |
7454 * cleared this key. Validate key on some other path first. | |
7455 * If it fails, return failure. | |
7456 */ | |
7457 | |
7458 npip = pip; | |
7459 pip = NULL; | |
7460 success = 0; | |
7461 | |
7462 /* Save the res key */ | |
6941
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diff
changeset
|
7463 bcopy(prout->res_key, temp_res_key, MHIOC_RESV_KEY_SIZE); |
4851 | 7464 |
7465 /* | |
7466 * Sometimes CDB from application can be a Register_And_Ignore. | |
7467 * Instead of validation, this cdb would result in force registration. | |
7468 * Convert it to normal cdb for validation. | |
7469 * After that be sure to restore the cdb. | |
7470 */ | |
7471 cdb_1 = vlun->svl_cdb[1]; | |
7472 vlun->svl_cdb[1] &= 0xe0; | |
7473 | |
7474 do { | |
6941
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6777
diff
changeset
|
7475 osvp = (scsi_vhci_priv_t *)mdi_pi_get_vhci_private(npip); |
4851 | 7476 if (osvp == NULL) { |
7477 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
7478 "vhci_pgr_validate_and_register: no " | |
7479 "client priv! 0x%p offlined?\n", | |
7480 (void *)npip)); | |
7481 goto next_path_1; | |
7482 } | |
7483 | |
7484 if (osvp == svp) { | |
7485 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
7486 "vhci_pgr_validate_and_register: same svp 0x%p" | |
7487 " npip 0x%p vlun 0x%p\n", | |
7488 (void *)svp, (void *)npip, (void *)vlun)); | |
7489 goto next_path_1; | |
7490 } | |
7491 | |
7492 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
7493 "vhci_pgr_validate_and_register: First validate on" | |
7494 " osvp 0x%p being done. vlun 0x%p thread 0x%p Before bcopy" | |
7495 " cdb1 %x\n", (void *)osvp, (void *)vlun, | |
7496 (void *)curthread, vlun->svl_cdb[1])); | |
7497 vhci_print_prout_keys(vlun, "v_pgr_val_reg: before bcopy:"); | |
7498 | |
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diff
changeset
|
7499 bcopy(prout->service_key, prout->res_key, MHIOC_RESV_KEY_SIZE); |
4851 | 7500 |
7501 VHCI_DEBUG(4, (CE_WARN, NULL, "vlun 0x%p After bcopy", | |
7502 (void *)vlun)); | |
7503 vhci_print_prout_keys(vlun, "v_pgr_val_reg: after bcopy: "); | |
7504 | |
7505 rval = vhci_do_prout(osvp); | |
7506 if (rval == 1) { | |
7507 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
7508 "%s%d: vhci_pgr_validate_and_register: key" | |
7509 " validated thread 0x%p\n", ddi_driver_name(cdip), | |
7510 ddi_get_instance(cdip), (void *)curthread)); | |
7511 pip = npip; | |
7512 success = 1; | |
7513 break; | |
7514 } else { | |
7515 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
7516 "vhci_pgr_validate_and_register: First validation" | |
7517 " on osvp 0x%p failed %x\n", (void *)osvp, rval)); | |
7518 vhci_print_prout_keys(vlun, "v_pgr_val_reg: failed:"); | |
7519 } | |
7520 | |
7521 /* | |
7522 * Try other paths | |
7523 */ | |
7524 next_path_1: | |
7525 pip = npip; | |
7526 rval = mdi_select_path(cdip, NULL, | |
7527 MDI_SELECT_ONLINE_PATH|MDI_SELECT_STANDBY_PATH, | |
7528 pip, &npip); | |
7529 mdi_rele_path(pip); | |
7530 } while ((rval == MDI_SUCCESS) && (npip != NULL)); | |
7531 | |
7532 | |
7533 /* Be sure to restore original cdb */ | |
7534 vlun->svl_cdb[1] = cdb_1; | |
7535 | |
7536 /* Restore the res_key */ | |
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diff
changeset
|
7537 bcopy(temp_res_key, prout->res_key, MHIOC_RESV_KEY_SIZE); |
4851 | 7538 |
7539 /* | |
7540 * If key could not be registered on any path for the first time, | |
7541 * return success as online should still continue. | |
7542 */ | |
7543 if (success == 0) { | |
7544 return (1); | |
7545 } | |
7546 | |
7547 ASSERT(pip != NULL); | |
7548 | |
7549 /* | |
7550 * Force register on new path | |
7551 */ | |
7552 cdb_1 = vlun->svl_cdb[1]; /* store the cdb */ | |
7553 | |
7554 vlun->svl_cdb[1] &= 0xe0; | |
7555 vlun->svl_cdb[1] |= VHCI_PROUT_R_AND_IGNORE; | |
7556 | |
7557 vhci_print_prout_keys(vlun, "v_pgr_val_reg: keys before bcopy: "); | |
7558 | |
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diff
changeset
|
7559 bcopy(prout->active_service_key, prout->service_key, |
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6459247 scsi_vhci does not return correct value for dma-max property
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diff
changeset
|
7560 MHIOC_RESV_KEY_SIZE); |
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6459247 scsi_vhci does not return correct value for dma-max property
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diff
changeset
|
7561 bcopy(prout->active_res_key, prout->res_key, MHIOC_RESV_KEY_SIZE); |
4851 | 7562 |
7563 vhci_print_prout_keys(vlun, "v_pgr_val_reg:keys after bcopy: "); | |
7564 | |
7565 rval = vhci_do_prout(svp); | |
7566 vlun->svl_cdb[1] = cdb_1; /* restore the cdb */ | |
7567 if (rval != 1) { | |
7568 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
7569 "vhci_pgr_validate_and_register: register on new" | |
7570 " path 0x%p svp 0x%p failed %x\n", | |
7571 (void *)pip, (void *)svp, rval)); | |
7572 vhci_print_prout_keys(vlun, "v_pgr_val_reg: reg failed: "); | |
7573 mdi_rele_path(pip); | |
7574 return (0); | |
7575 } | |
7576 | |
7577 if (bcmp(prout->service_key, zero_key, MHIOC_RESV_KEY_SIZE) == 0) { | |
7578 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
7579 "vhci_pgr_validate_and_register: zero service key\n")); | |
7580 mdi_rele_path(pip); | |
7581 return (rval); | |
7582 } | |
7583 | |
7584 /* | |
7585 * While the key was force registered, some other host might have | |
7586 * cleared the key. Re-validate key on another pre-existing path | |
7587 * before declaring success. | |
7588 */ | |
7589 npip = pip; | |
7590 pip = NULL; | |
7591 | |
7592 /* | |
7593 * Sometimes CDB from application can be Register and Ignore. | |
7594 * Instead of validation, it would result in force registration. | |
7595 * Convert it to normal cdb for validation. | |
7596 * After that be sure to restore the cdb. | |
7597 */ | |
7598 cdb_1 = vlun->svl_cdb[1]; | |
7599 vlun->svl_cdb[1] &= 0xe0; | |
7600 success = 0; | |
7601 | |
7602 do { | |
7603 osvp = (scsi_vhci_priv_t *) | |
7604 mdi_pi_get_vhci_private(npip); | |
7605 if (osvp == NULL) { | |
7606 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
7607 "vhci_pgr_validate_and_register: no " | |
7608 "client priv! 0x%p offlined?\n", | |
7609 (void *)npip)); | |
7610 goto next_path_2; | |
7611 } | |
7612 | |
7613 if (osvp == svp) { | |
7614 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
7615 "vhci_pgr_validate_and_register: same osvp 0x%p" | |
7616 " npip 0x%p vlun 0x%p\n", | |
7617 (void *)svp, (void *)npip, (void *)vlun)); | |
7618 goto next_path_2; | |
7619 } | |
7620 | |
7621 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
7622 "vhci_pgr_validate_and_register: Re-validation on" | |
7623 " osvp 0x%p being done. vlun 0x%p Before bcopy cdb1 %x\n", | |
7624 (void *)osvp, (void *)vlun, vlun->svl_cdb[1])); | |
7625 vhci_print_prout_keys(vlun, "v_pgr_val_reg: before bcopy: "); | |
7626 | |
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diff
changeset
|
7627 bcopy(prout->service_key, prout->res_key, MHIOC_RESV_KEY_SIZE); |
4851 | 7628 |
7629 vhci_print_prout_keys(vlun, "v_pgr_val_reg: after bcopy: "); | |
7630 | |
7631 rval = vhci_do_prout(osvp); | |
7632 if (rval == 1) { | |
7633 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
7634 "%s%d: vhci_pgr_validate_and_register: key" | |
7635 " validated thread 0x%p\n", ddi_driver_name(cdip), | |
7636 ddi_get_instance(cdip), (void *)curthread)); | |
7637 pip = npip; | |
7638 success = 1; | |
7639 break; | |
7640 } else { | |
7641 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
7642 "vhci_pgr_validate_and_register: Re-validation on" | |
7643 " osvp 0x%p failed %x\n", (void *)osvp, rval)); | |
7644 vhci_print_prout_keys(vlun, | |
7645 "v_pgr_val_reg: reval failed: "); | |
7646 } | |
7647 | |
7648 /* | |
7649 * Try other paths | |
7650 */ | |
7651 next_path_2: | |
7652 pip = npip; | |
7653 rval = mdi_select_path(cdip, NULL, | |
7654 MDI_SELECT_ONLINE_PATH|MDI_SELECT_STANDBY_PATH, | |
7655 pip, &npip); | |
7656 mdi_rele_path(pip); | |
7657 } while ((rval == MDI_SUCCESS) && (npip != NULL)); | |
7658 | |
7659 /* Be sure to restore original cdb */ | |
7660 vlun->svl_cdb[1] = cdb_1; | |
7661 | |
7662 if (success == 1) { | |
7663 /* Successfully validated registration */ | |
7664 mdi_rele_path(pip); | |
7665 return (1); | |
7666 } | |
7667 | |
7668 VHCI_DEBUG(4, (CE_WARN, NULL, "key validation failed")); | |
7669 | |
7670 /* | |
7671 * key invalid, back out by registering key value of 0 | |
7672 */ | |
7673 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
7674 "vhci_pgr_validate_and_register: backout on" | |
7675 " svp 0x%p being done\n", (void *)svp)); | |
7676 vhci_print_prout_keys(vlun, "v_pgr_val_reg: before bcopy: "); | |
7677 | |
6941
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diff
changeset
|
7678 bcopy(prout->service_key, prout->res_key, MHIOC_RESV_KEY_SIZE); |
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diff
changeset
|
7679 bzero(prout->service_key, MHIOC_RESV_KEY_SIZE); |
4851 | 7680 |
7681 vhci_print_prout_keys(vlun, "v_pgr_val_reg: before bcopy: "); | |
7682 | |
7683 /* | |
7684 * Get a new path | |
7685 */ | |
7686 rval = mdi_select_path(cdip, NULL, MDI_SELECT_ONLINE_PATH | | |
7687 MDI_SELECT_STANDBY_PATH, NULL, &pip); | |
7688 if ((rval != MDI_SUCCESS) || (pip == NULL)) { | |
7689 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
7690 "%s%d: vhci_pgr_validate_and_register: no valid pip\n", | |
7691 ddi_driver_name(cdip), ddi_get_instance(cdip))); | |
7692 return (0); | |
7693 } | |
7694 | |
7695 if ((rval = vhci_do_prout(svp)) != 1) { | |
7696 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
7697 "vhci_pgr_validate_and_register: backout on" | |
7698 " svp 0x%p failed\n", (void *)svp)); | |
7699 vhci_print_prout_keys(vlun, "backout failed"); | |
7700 | |
7701 VHCI_DEBUG(4, (CE_WARN, NULL, | |
7702 "%s%d: vhci_pgr_validate_and_register: key" | |
7703 " validation and backout failed", ddi_driver_name(cdip), | |
7704 ddi_get_instance(cdip))); | |
7705 if (rval == VHCI_PGR_ILLEGALOP) { | |
7706 VHCI_DEBUG(4, (CE_WARN, NULL, | |
7707 "%s%d: vhci_pgr_validate_and_register: key" | |
7708 " already cleared", ddi_driver_name(cdip), | |
7709 ddi_get_instance(cdip))); | |
7710 rval = 1; | |
7711 } else | |
7712 rval = 0; | |
7713 } else { | |
7714 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
7715 "%s%d: vhci_pgr_validate_and_register: key" | |
7716 " validation failed, key backed out\n", | |
7717 ddi_driver_name(cdip), ddi_get_instance(cdip))); | |
7718 vhci_print_prout_keys(vlun, "v_pgr_val_reg: key backed out: "); | |
7719 } | |
7720 mdi_rele_path(pip); | |
7721 | |
7722 return (rval); | |
7723 } | |
7724 | |
7725 /* | |
7726 * taskq routine to dispatch a scsi cmd to vhci_scsi_start. This ensures | |
7727 * that vhci_scsi_start is not called in interrupt context. | |
7728 * As the upper layer gets TRAN_ACCEPT when the command is dispatched, we | |
7729 * need to complete the command if something goes wrong. | |
7730 */ | |
7731 static void | |
7732 vhci_dispatch_scsi_start(void *arg) | |
7733 { | |
6941
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6459247 scsi_vhci does not return correct value for dma-max property
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diff
changeset
|
7734 struct vhci_pkt *vpkt = (struct vhci_pkt *)arg; |
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6459247 scsi_vhci does not return correct value for dma-max property
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diff
changeset
|
7735 struct scsi_pkt *tpkt = vpkt->vpkt_tgt_pkt; |
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6459247 scsi_vhci does not return correct value for dma-max property
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diff
changeset
|
7736 int rval = TRAN_BUSY; |
4851 | 7737 |
7738 VHCI_DEBUG(6, (CE_NOTE, NULL, "!vhci_dispatch_scsi_start: sending" | |
7739 " scsi-2 reserve for 0x%p\n", | |
7740 (void *)ADDR2DIP(&(vpkt->vpkt_tgt_pkt->pkt_address)))); | |
7741 | |
7742 /* | |
7743 * To prevent the taskq from being called recursively we set the | |
7744 * the VHCI_PKT_THRU_TASKQ bit in the vhci_pkt_states. | |
7745 */ | |
7746 vpkt->vpkt_state |= VHCI_PKT_THRU_TASKQ; | |
7747 | |
7748 /* | |
7749 * Wait for the transport to get ready to send packets | |
7750 * and if it times out, it will return something other than | |
7751 * TRAN_BUSY. The vhci_reserve_delay may want to | |
7752 * get tuned for other transports and is therefore a global. | |
7753 * Using delay since this routine is called by taskq dispatch | |
7754 * and not called during interrupt context. | |
7755 */ | |
7756 while ((rval = vhci_scsi_start(&(vpkt->vpkt_tgt_pkt->pkt_address), | |
7757 vpkt->vpkt_tgt_pkt)) == TRAN_BUSY) { | |
7758 delay(drv_usectohz(vhci_reserve_delay)); | |
7759 } | |
7760 | |
7761 switch (rval) { | |
7762 case TRAN_ACCEPT: | |
7763 return; | |
7764 | |
7765 default: | |
7766 /* | |
7767 * This pkt shall be retried, and to ensure another taskq | |
7768 * is dispatched for it, clear the VHCI_PKT_THRU_TASKQ | |
7769 * flag. | |
7770 */ | |
7771 vpkt->vpkt_state &= ~VHCI_PKT_THRU_TASKQ; | |
7772 | |
7773 /* Ensure that the pkt is retried without a reset */ | |
7774 tpkt->pkt_reason = CMD_ABORTED; | |
7775 tpkt->pkt_statistics |= STAT_ABORTED; | |
7776 VHCI_DEBUG(1, (CE_WARN, NULL, "!vhci_dispatch_scsi_start: " | |
7777 "TRAN_rval %d returned for dip 0x%p", rval, | |
7778 (void *)ADDR2DIP(&(vpkt->vpkt_tgt_pkt->pkt_address)))); | |
7779 break; | |
7780 } | |
7781 | |
7782 /* | |
7783 * vpkt_org_vpkt should always be NULL here if the retry command | |
7784 * has been successfully dispatched. If vpkt_org_vpkt != NULL at | |
7785 * this point, it is an error so restore the original vpkt and | |
7786 * return an error to the target driver so it can retry the | |
7787 * command as appropriate. | |
7788 */ | |
7789 if (vpkt->vpkt_org_vpkt != NULL) { | |
7790 struct vhci_pkt *new_vpkt = vpkt; | |
7791 scsi_vhci_priv_t *svp = (scsi_vhci_priv_t *) | |
7792 mdi_pi_get_vhci_private(vpkt->vpkt_path); | |
7793 | |
7794 vpkt = vpkt->vpkt_org_vpkt; | |
7795 | |
7796 vpkt->vpkt_tgt_pkt->pkt_reason = tpkt->pkt_reason; | |
7797 vpkt->vpkt_tgt_pkt->pkt_statistics = tpkt->pkt_statistics; | |
7798 | |
7799 vhci_scsi_destroy_pkt(&svp->svp_psd->sd_address, | |
7800 new_vpkt->vpkt_tgt_pkt); | |
7801 | |
7802 tpkt = vpkt->vpkt_tgt_pkt; | |
7803 } | |
7804 | |
7805 if (tpkt->pkt_comp) { | |
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7806 tpkt->pkt_comp(tpkt); |
4851 | 7807 } |
7808 } | |
7809 | |
7810 static void | |
7811 vhci_initiate_auto_failback(void *arg) | |
7812 { | |
7813 struct scsi_vhci_lun *vlun = (struct scsi_vhci_lun *)arg; | |
7814 dev_info_t *vdip, *cdip; | |
7815 int held; | |
7816 | |
7817 cdip = vlun->svl_dip; | |
7818 vdip = ddi_get_parent(cdip); | |
7819 | |
7820 VHCI_HOLD_LUN(vlun, VH_SLEEP, held); | |
7821 | |
7822 /* | |
7823 * Perform a final check to see if the active path class is indeed | |
7824 * not the prefered path class. As in the time the auto failback | |
7825 * was dispatched, an external failover could have been detected. | |
7826 * [Some other host could have detected this condition and triggered | |
7827 * the auto failback before]. | |
7828 * In such a case if we go ahead with failover we will be negating the | |
7829 * whole purpose of auto failback. | |
7830 */ | |
7831 mutex_enter(&vlun->svl_mutex); | |
7832 if (vlun->svl_active_pclass != NULL) { | |
7833 char *best_pclass; | |
7834 struct scsi_failover_ops *fo; | |
7835 | |
7836 fo = vlun->svl_fops; | |
7837 | |
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7838 (void) fo->sfo_pathclass_next(NULL, &best_pclass, |
4851 | 7839 vlun->svl_fops_ctpriv); |
7840 if (strcmp(vlun->svl_active_pclass, best_pclass) == 0) { | |
7841 mutex_exit(&vlun->svl_mutex); | |
7842 VHCI_RELEASE_LUN(vlun); | |
7843 VHCI_DEBUG(1, (CE_NOTE, NULL, "Not initiating " | |
7844 "auto failback for %s as %s pathclass already " | |
7845 "active.\n", vlun->svl_lun_wwn, best_pclass)); | |
7846 return; | |
7847 } | |
7848 } | |
7849 mutex_exit(&vlun->svl_mutex); | |
7850 if (mdi_failover(vdip, vlun->svl_dip, MDI_FAILOVER_SYNC) | |
7851 == MDI_SUCCESS) { | |
7852 vhci_log(CE_NOTE, vdip, "!Auto failback operation " | |
7853 "succeeded for device %s (GUID %s)", | |
7854 ddi_node_name(cdip), vlun->svl_lun_wwn); | |
7855 } else { | |
7856 vhci_log(CE_NOTE, vdip, "!Auto failback operation " | |
7857 "failed for device %s (GUID %s)", | |
7858 ddi_node_name(cdip), vlun->svl_lun_wwn); | |
7859 } | |
7860 VHCI_RELEASE_LUN(vlun); | |
7861 } | |
7862 | |
7863 #ifdef DEBUG | |
7864 static void | |
7865 vhci_print_prin_keys(vhci_prin_readkeys_t *prin, int numkeys) | |
7866 { | |
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7867 vhci_clean_print(NULL, 5, "Current PGR Keys", |
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7868 (uchar_t *)prin, numkeys * 8); |
4851 | 7869 } |
7870 #endif | |
7871 | |
7872 static void | |
7873 vhci_print_prout_keys(scsi_vhci_lun_t *vlun, char *msg) | |
7874 { | |
7875 int i; | |
7876 vhci_prout_t *prout; | |
7877 char buf1[4*MHIOC_RESV_KEY_SIZE + 1]; | |
7878 char buf2[4*MHIOC_RESV_KEY_SIZE + 1]; | |
7879 char buf3[4*MHIOC_RESV_KEY_SIZE + 1]; | |
7880 char buf4[4*MHIOC_RESV_KEY_SIZE + 1]; | |
7881 | |
7882 prout = &vlun->svl_prout; | |
7883 | |
7884 for (i = 0; i < MHIOC_RESV_KEY_SIZE; i++) | |
7885 (void) sprintf(&buf1[4*i], "[%02x]", prout->res_key[i]); | |
7886 for (i = 0; i < MHIOC_RESV_KEY_SIZE; i++) | |
7887 (void) sprintf(&buf2[(4*i)], "[%02x]", prout->service_key[i]); | |
7888 for (i = 0; i < MHIOC_RESV_KEY_SIZE; i++) | |
7889 (void) sprintf(&buf3[4*i], "[%02x]", prout->active_res_key[i]); | |
7890 for (i = 0; i < MHIOC_RESV_KEY_SIZE; i++) | |
7891 (void) sprintf(&buf4[4*i], "[%02x]", | |
7892 prout->active_service_key[i]); | |
7893 | |
7894 /* Printing all in one go. Otherwise it will jumble up */ | |
7895 VHCI_DEBUG(5, (CE_CONT, NULL, "%s vlun 0x%p, thread 0x%p\n" | |
7896 "res_key: : %s\n" | |
7897 "service_key : %s\n" | |
7898 "active_res_key : %s\n" | |
7899 "active_service_key: %s\n", | |
7900 msg, (void *)vlun, (void *)curthread, buf1, buf2, buf3, buf4)); | |
7901 } | |
7902 | |
7903 /* | |
7904 * Called from vhci_scsi_start to update the pHCI pkt with target packet. | |
7905 */ | |
7906 static void | |
7907 vhci_update_pHCI_pkt(struct vhci_pkt *vpkt, struct scsi_pkt *pkt) | |
7908 { | |
7909 | |
7910 ASSERT(vpkt->vpkt_hba_pkt); | |
7911 | |
7912 vpkt->vpkt_hba_pkt->pkt_flags = pkt->pkt_flags; | |
7913 vpkt->vpkt_hba_pkt->pkt_flags |= FLAG_NOQUEUE; | |
7914 | |
7915 if ((vpkt->vpkt_hba_pkt->pkt_flags & FLAG_NOINTR) || | |
7916 MDI_PI_IS_SUSPENDED(vpkt->vpkt_path)) { | |
7917 /* | |
7918 * Polled Command is requested or HBA is in | |
7919 * suspended state | |
7920 */ | |
7921 vpkt->vpkt_hba_pkt->pkt_flags |= FLAG_NOINTR; | |
7922 vpkt->vpkt_hba_pkt->pkt_comp = NULL; | |
7923 } else { | |
7924 vpkt->vpkt_hba_pkt->pkt_comp = vhci_intr; | |
7925 } | |
7926 vpkt->vpkt_hba_pkt->pkt_time = pkt->pkt_time; | |
7927 bcopy(pkt->pkt_cdbp, vpkt->vpkt_hba_pkt->pkt_cdbp, | |
7928 vpkt->vpkt_tgt_init_cdblen); | |
7929 vpkt->vpkt_hba_pkt->pkt_resid = pkt->pkt_resid; | |
7930 | |
7931 /* Re-initialize the following pHCI packet state information */ | |
7932 vpkt->vpkt_hba_pkt->pkt_state = 0; | |
7933 vpkt->vpkt_hba_pkt->pkt_statistics = 0; | |
7934 vpkt->vpkt_hba_pkt->pkt_reason = 0; | |
7935 } | |
7936 | |
7937 static int | |
7938 vhci_scsi_bus_power(dev_info_t *parent, void *impl_arg, pm_bus_power_op_t op, | |
7939 void *arg, void *result) | |
7940 { | |
7941 int ret = DDI_SUCCESS; | |
7942 | |
7943 /* | |
7944 * Generic processing in MPxIO framework | |
7945 */ | |
7946 ret = mdi_bus_power(parent, impl_arg, op, arg, result); | |
7947 | |
7948 switch (ret) { | |
7949 case MDI_SUCCESS: | |
7950 ret = DDI_SUCCESS; | |
7951 break; | |
7952 case MDI_FAILURE: | |
7953 ret = DDI_FAILURE; | |
7954 break; | |
7955 default: | |
7956 break; | |
7957 } | |
7958 | |
7959 return (ret); | |
7960 } | |
7961 | |
7962 static int | |
7963 vhci_pHCI_cap(struct scsi_address *ap, char *cap, int val, int whom, | |
7964 mdi_pathinfo_t *pip) | |
7965 { | |
7966 dev_info_t *cdip; | |
7967 mdi_pathinfo_t *npip = NULL; | |
7968 scsi_vhci_priv_t *svp = NULL; | |
7969 struct scsi_address *pap = NULL; | |
7970 scsi_hba_tran_t *hba = NULL; | |
7971 int sps; | |
7972 int mps_flag; | |
7973 int rval = 0; | |
7974 | |
7975 mps_flag = (MDI_SELECT_ONLINE_PATH | MDI_SELECT_STANDBY_PATH); | |
7976 if (pip) { | |
7977 /* | |
7978 * If the call is from vhci_pathinfo_state_change, | |
7979 * then this path was busy and is becoming ready to accept IO. | |
7980 */ | |
7981 ASSERT(ap != NULL); | |
7982 hba = ap->a_hba_tran; | |
7983 ASSERT(hba != NULL); | |
7984 rval = scsi_ifsetcap(ap, cap, val, whom); | |
7985 | |
7986 VHCI_DEBUG(2, (CE_NOTE, NULL, | |
7987 "!vhci_pHCI_cap: only on path %p, ap %p, rval %x\n", | |
7988 (void *)pip, (void *)ap, rval)); | |
7989 | |
7990 return (rval); | |
7991 } | |
7992 | |
7993 /* | |
7994 * Set capability on all the pHCIs. | |
7995 * If any path is busy, then the capability would be set by | |
7996 * vhci_pathinfo_state_change. | |
7997 */ | |
7998 | |
7999 cdip = ADDR2DIP(ap); | |
8000 ASSERT(cdip != NULL); | |
8001 sps = mdi_select_path(cdip, NULL, mps_flag, NULL, &pip); | |
8002 if ((sps != MDI_SUCCESS) || (pip == NULL)) { | |
8003 VHCI_DEBUG(2, (CE_WARN, NULL, | |
8004 "!vhci_pHCI_cap: Unable to get a path, dip 0x%p", | |
8005 (void *)cdip)); | |
8006 return (0); | |
8007 } | |
8008 | |
8009 again: | |
8010 svp = (scsi_vhci_priv_t *)mdi_pi_get_vhci_private(pip); | |
8011 if (svp == NULL) { | |
8012 VHCI_DEBUG(2, (CE_WARN, NULL, "!vhci_pHCI_cap: " | |
8013 "priv is NULL, pip 0x%p", (void *)pip)); | |
8014 mdi_rele_path(pip); | |
8015 return (rval); | |
8016 } | |
8017 | |
8018 if (svp->svp_psd == NULL) { | |
8019 VHCI_DEBUG(2, (CE_WARN, NULL, "!vhci_pHCI_cap: " | |
8020 "psd is NULL, pip 0x%p, svp 0x%p", | |
8021 (void *)pip, (void *)svp)); | |
8022 mdi_rele_path(pip); | |
8023 return (rval); | |
8024 } | |
8025 | |
8026 pap = &svp->svp_psd->sd_address; | |
8027 ASSERT(pap != NULL); | |
8028 hba = pap->a_hba_tran; | |
8029 ASSERT(hba != NULL); | |
8030 | |
8031 if (hba->tran_setcap != NULL) { | |
8032 rval = scsi_ifsetcap(pap, cap, val, whom); | |
8033 | |
8034 VHCI_DEBUG(2, (CE_NOTE, NULL, | |
8035 "!vhci_pHCI_cap: path %p, ap %p, rval %x\n", | |
8036 (void *)pip, (void *)ap, rval)); | |
8037 | |
8038 /* | |
8039 * Select next path and issue the setcap, repeat | |
8040 * until all paths are exhausted | |
8041 */ | |
8042 sps = mdi_select_path(cdip, NULL, mps_flag, pip, &npip); | |
8043 if ((sps != MDI_SUCCESS) || (npip == NULL)) { | |
8044 mdi_rele_path(pip); | |
8045 return (1); | |
8046 } | |
8047 mdi_rele_path(pip); | |
8048 pip = npip; | |
8049 goto again; | |
8050 } | |
8051 mdi_rele_path(pip); | |
8052 return (rval); | |
8053 } | |
8054 | |
8055 static int | |
8056 vhci_scsi_bus_config(dev_info_t *pdip, uint_t flags, ddi_bus_config_op_t op, | |
8057 void *arg, dev_info_t **child) | |
8058 { | |
8059 char *guid; | |
8060 | |
8061 if (op == BUS_CONFIG_ONE || op == BUS_UNCONFIG_ONE) | |
8062 guid = vhci_devnm_to_guid((char *)arg); | |
8063 else | |
8064 guid = NULL; | |
8065 | |
8066 if (mdi_vhci_bus_config(pdip, flags, op, arg, child, guid) | |
8067 == MDI_SUCCESS) | |
8068 return (NDI_SUCCESS); | |
8069 else | |
8070 return (NDI_FAILURE); | |
8071 } | |
8072 | |
8073 /* | |
8074 * Take the original vhci_pkt, create a duplicate of the pkt for resending | |
8075 * as though it originated in ssd. | |
8076 */ | |
8077 static struct scsi_pkt * | |
8078 vhci_create_retry_pkt(struct vhci_pkt *vpkt) | |
8079 { | |
8080 struct vhci_pkt *new_vpkt = NULL; | |
8081 struct scsi_pkt *pkt = NULL; | |
8082 | |
8083 scsi_vhci_priv_t *svp = (scsi_vhci_priv_t *) | |
8084 mdi_pi_get_vhci_private(vpkt->vpkt_path); | |
8085 | |
8086 /* | |
8087 * Ensure consistent data at completion time by setting PKT_CONSISTENT | |
8088 */ | |
8089 pkt = vhci_scsi_init_pkt(&svp->svp_psd->sd_address, pkt, | |
8090 vpkt->vpkt_tgt_init_bp, vpkt->vpkt_tgt_init_cdblen, | |
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8091 vpkt->vpkt_tgt_init_scblen, 0, PKT_CONSISTENT, NULL_FUNC, NULL); |
4851 | 8092 if (pkt != NULL) { |
8093 new_vpkt = TGTPKT2VHCIPKT(pkt); | |
8094 | |
8095 pkt->pkt_address = vpkt->vpkt_tgt_pkt->pkt_address; | |
8096 pkt->pkt_flags = vpkt->vpkt_tgt_pkt->pkt_flags; | |
8097 pkt->pkt_time = vpkt->vpkt_tgt_pkt->pkt_time; | |
8098 pkt->pkt_comp = vpkt->vpkt_tgt_pkt->pkt_comp; | |
8099 | |
8100 pkt->pkt_resid = 0; | |
8101 pkt->pkt_statistics = 0; | |
8102 pkt->pkt_reason = 0; | |
8103 | |
8104 bcopy(vpkt->vpkt_tgt_pkt->pkt_cdbp, | |
8105 pkt->pkt_cdbp, vpkt->vpkt_tgt_init_cdblen); | |
8106 | |
8107 /* | |
8108 * Save a pointer to the original vhci_pkt | |
8109 */ | |
8110 new_vpkt->vpkt_org_vpkt = vpkt; | |
8111 } | |
8112 | |
8113 return (pkt); | |
8114 } | |
8115 | |
8116 /* | |
8117 * Copy the successful completion information from the hba packet into | |
8118 * the original target pkt from the upper layer. Returns the original | |
8119 * vpkt and destroys the new vpkt from the internal retry. | |
8120 */ | |
8121 static struct vhci_pkt * | |
8122 vhci_sync_retry_pkt(struct vhci_pkt *vpkt) | |
8123 { | |
8124 struct vhci_pkt *ret_vpkt = NULL; | |
8125 struct scsi_pkt *tpkt = NULL; | |
8126 struct scsi_pkt *hba_pkt = NULL; | |
8127 scsi_vhci_priv_t *svp = (scsi_vhci_priv_t *) | |
8128 mdi_pi_get_vhci_private(vpkt->vpkt_path); | |
8129 | |
8130 ASSERT(vpkt->vpkt_org_vpkt != NULL); | |
8131 VHCI_DEBUG(0, (CE_NOTE, NULL, "vhci_sync_retry_pkt: Retry pkt " | |
8132 "completed successfully!\n")); | |
8133 | |
8134 ret_vpkt = vpkt->vpkt_org_vpkt; | |
8135 tpkt = ret_vpkt->vpkt_tgt_pkt; | |
8136 hba_pkt = vpkt->vpkt_hba_pkt; | |
8137 | |
8138 /* | |
8139 * Copy the good status into the target driver's packet | |
8140 */ | |
8141 *(tpkt->pkt_scbp) = *(hba_pkt->pkt_scbp); | |
8142 tpkt->pkt_resid = hba_pkt->pkt_resid; | |
8143 tpkt->pkt_state = hba_pkt->pkt_state; | |
8144 tpkt->pkt_statistics = hba_pkt->pkt_statistics; | |
8145 tpkt->pkt_reason = hba_pkt->pkt_reason; | |
8146 | |
8147 /* | |
8148 * Destroy the internally created vpkt for the retry | |
8149 */ | |
8150 vhci_scsi_destroy_pkt(&svp->svp_psd->sd_address, | |
8151 vpkt->vpkt_tgt_pkt); | |
8152 | |
8153 return (ret_vpkt); | |
8154 } | |
8155 | |
8156 /* restart the request sense request */ | |
8157 static void | |
8158 vhci_uscsi_restart_sense(void *arg) | |
8159 { | |
8160 struct buf *rqbp; | |
8161 struct buf *bp; | |
8162 struct scsi_pkt *rqpkt = (struct scsi_pkt *)arg; | |
8163 mp_uscsi_cmd_t *mp_uscmdp; | |
8164 | |
8165 VHCI_DEBUG(4, (CE_WARN, NULL, | |
8166 "vhci_uscsi_restart_sense: enter: rqpkt: %p", (void *)rqpkt)); | |
8167 | |
8168 if (scsi_transport(rqpkt) != TRAN_ACCEPT) { | |
8169 /* if it fails - need to wakeup the original command */ | |
8170 mp_uscmdp = rqpkt->pkt_private; | |
8171 bp = mp_uscmdp->cmdbp; | |
8172 rqbp = mp_uscmdp->rqbp; | |
8173 ASSERT(mp_uscmdp && bp && rqbp); | |
8174 scsi_free_consistent_buf(rqbp); | |
8175 scsi_destroy_pkt(rqpkt); | |
8176 bp->b_resid = bp->b_bcount; | |
8177 bioerror(bp, EIO); | |
8178 biodone(bp); | |
8179 } | |
8180 } | |
8181 | |
8182 /* | |
8183 * auto-rqsense is not enabled so we have to retrieve the request sense | |
8184 * manually. | |
8185 */ | |
8186 static int | |
8187 vhci_uscsi_send_sense(struct scsi_pkt *pkt, mp_uscsi_cmd_t *mp_uscmdp) | |
8188 { | |
8189 struct buf *rqbp, *cmdbp; | |
8190 struct scsi_pkt *rqpkt; | |
8191 int rval = 0; | |
8192 | |
8193 cmdbp = mp_uscmdp->cmdbp; | |
8194 ASSERT(cmdbp != NULL); | |
8195 | |
8196 VHCI_DEBUG(4, (CE_WARN, NULL, | |
8197 "vhci_uscsi_send_sense: enter: bp: %p pkt: %p scmd: %p", | |
8198 (void *)cmdbp, (void *)pkt, (void *)mp_uscmdp)); | |
8199 /* set up the packet information and cdb */ | |
8200 if ((rqbp = scsi_alloc_consistent_buf(mp_uscmdp->ap, NULL, | |
8201 SENSE_LENGTH, B_READ, NULL, NULL)) == NULL) { | |
8202 return (-1); | |
8203 } | |
8204 | |
8205 if ((rqpkt = scsi_init_pkt(mp_uscmdp->ap, NULL, rqbp, | |
8206 CDB_GROUP0, 1, 0, PKT_CONSISTENT, NULL, NULL)) == NULL) { | |
8207 scsi_free_consistent_buf(rqbp); | |
8208 return (-1); | |
8209 } | |
8210 | |
8211 (void) scsi_setup_cdb((union scsi_cdb *)(intptr_t)rqpkt->pkt_cdbp, | |
8212 SCMD_REQUEST_SENSE, 0, SENSE_LENGTH, 0); | |
8213 | |
8214 mp_uscmdp->rqbp = rqbp; | |
8215 rqbp->b_private = mp_uscmdp; | |
8216 rqpkt->pkt_flags |= FLAG_SENSING; | |
8217 rqpkt->pkt_time = 60; | |
8218 rqpkt->pkt_comp = vhci_uscsi_iodone; | |
8219 rqpkt->pkt_private = mp_uscmdp; | |
8220 | |
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8221 /* |
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8222 * NOTE: This code path is related to MPAPI uscsi(7I), so path |
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8223 * selection is not based on path_instance. |
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8224 */ |
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8225 if (scsi_pkt_allocated_correctly(rqpkt)) |
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8226 rqpkt->pkt_path_instance = 0; |
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8227 |
4851 | 8228 /* get her done */ |
8229 switch (scsi_transport(rqpkt)) { | |
8230 case TRAN_ACCEPT: | |
8231 VHCI_DEBUG(1, (CE_NOTE, NULL, "vhci_uscsi_send_sense: " | |
8232 "transport accepted.")); | |
8233 break; | |
8234 case TRAN_BUSY: | |
8235 VHCI_DEBUG(1, (CE_NOTE, NULL, "vhci_uscsi_send_sense: " | |
8236 "transport busy, setting timeout.")); | |
8237 vhci_restart_timeid = timeout(vhci_uscsi_restart_sense, rqpkt, | |
8238 (drv_usectohz(5 * 1000000))); | |
8239 break; | |
8240 default: | |
8241 VHCI_DEBUG(1, (CE_NOTE, NULL, "vhci_uscsi_send_sense: " | |
8242 "transport failed")); | |
8243 scsi_free_consistent_buf(rqbp); | |
8244 scsi_destroy_pkt(rqpkt); | |
8245 rval = -1; | |
8246 } | |
8247 | |
8248 return (rval); | |
8249 } | |
8250 | |
8251 /* | |
8252 * done routine for the mpapi uscsi command - this is behaving as though | |
8253 * FLAG_DIAGNOSE is set meaning there are no retries except for a manual | |
8254 * request sense. | |
8255 */ | |
8256 void | |
8257 vhci_uscsi_iodone(struct scsi_pkt *pkt) | |
8258 { | |
8259 struct buf *bp; | |
8260 mp_uscsi_cmd_t *mp_uscmdp; | |
8261 struct uscsi_cmd *uscmdp; | |
8262 struct scsi_arq_status *arqstat; | |
8263 int err; | |
8264 | |
8265 mp_uscmdp = (mp_uscsi_cmd_t *)pkt->pkt_private; | |
8266 uscmdp = mp_uscmdp->uscmdp; | |
8267 bp = mp_uscmdp->cmdbp; | |
8268 ASSERT(bp != NULL); | |
8269 VHCI_DEBUG(4, (CE_WARN, NULL, | |
8270 "vhci_uscsi_iodone: enter: bp: %p pkt: %p scmd: %p", | |
8271 (void *)bp, (void *)pkt, (void *)mp_uscmdp)); | |
8272 /* Save the status and the residual into the uscsi_cmd struct */ | |
8273 uscmdp->uscsi_status = ((*(pkt)->pkt_scbp) & STATUS_MASK); | |
8274 uscmdp->uscsi_resid = bp->b_resid; | |
8275 | |
8276 /* return on a very successful command */ | |
8277 if (pkt->pkt_reason == CMD_CMPLT && | |
8278 SCBP_C(pkt) == 0 && ((pkt->pkt_flags & FLAG_SENSING) == 0) && | |
8279 pkt->pkt_resid == 0) { | |
8280 mdi_pi_kstat_iosupdate(mp_uscmdp->pip, bp); | |
8281 scsi_destroy_pkt(pkt); | |
8282 biodone(bp); | |
8283 return; | |
8284 } | |
8285 VHCI_DEBUG(4, (CE_NOTE, NULL, "iodone: reason=0x%x " | |
8286 " pkt_resid=%ld pkt_state: 0x%x b_count: %ld b_resid: %ld", | |
8287 pkt->pkt_reason, pkt->pkt_resid, | |
8288 pkt->pkt_state, bp->b_bcount, bp->b_resid)); | |
8289 | |
8290 err = EIO; | |
8291 | |
8292 arqstat = (struct scsi_arq_status *)(intptr_t)(pkt->pkt_scbp); | |
8293 if (pkt->pkt_reason != CMD_CMPLT) { | |
8294 /* | |
8295 * The command did not complete. | |
8296 */ | |
8297 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
8298 "vhci_uscsi_iodone: command did not complete." | |
8299 " reason: %x flag: %x", pkt->pkt_reason, pkt->pkt_flags)); | |
8300 if (pkt->pkt_flags & FLAG_SENSING) { | |
8301 MDI_PI_ERRSTAT(mp_uscmdp->pip, MDI_PI_TRANSERR); | |
8302 } else if (pkt->pkt_reason == CMD_TIMEOUT) { | |
8303 MDI_PI_ERRSTAT(mp_uscmdp->pip, MDI_PI_HARDERR); | |
8304 err = ETIMEDOUT; | |
8305 } | |
8306 } else if (pkt->pkt_state & STATE_ARQ_DONE && mp_uscmdp->arq_enabled) { | |
8307 /* | |
8308 * The auto-rqsense happened, and the packet has a filled-in | |
8309 * scsi_arq_status structure, pointed to by pkt_scbp. | |
8310 */ | |
8311 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
8312 "vhci_uscsi_iodone: received auto-requested sense")); | |
8313 if (uscmdp->uscsi_flags & USCSI_RQENABLE) { | |
8314 /* get the amount of data to copy into rqbuf */ | |
8315 int rqlen = SENSE_LENGTH - arqstat->sts_rqpkt_resid; | |
8316 rqlen = min(((int)uscmdp->uscsi_rqlen), rqlen); | |
8317 uscmdp->uscsi_rqresid = uscmdp->uscsi_rqlen - rqlen; | |
8318 uscmdp->uscsi_rqstatus = | |
8319 *((char *)&arqstat->sts_rqpkt_status); | |
8320 if (uscmdp->uscsi_rqbuf && uscmdp->uscsi_rqlen && | |
8321 rqlen != 0) { | |
8322 bcopy(&(arqstat->sts_sensedata), | |
8323 uscmdp->uscsi_rqbuf, rqlen); | |
8324 } | |
8325 mdi_pi_kstat_iosupdate(mp_uscmdp->pip, bp); | |
8326 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
8327 "vhci_uscsi_iodone: ARQ " | |
8328 "uscsi_rqstatus=0x%x uscsi_rqresid=%d rqlen: %d " | |
8329 "xfer: %d rqpkt_resid: %d\n", | |
8330 uscmdp->uscsi_rqstatus, uscmdp->uscsi_rqresid, | |
8331 uscmdp->uscsi_rqlen, rqlen, | |
8332 arqstat->sts_rqpkt_resid)); | |
8333 } | |
8334 } else if (pkt->pkt_flags & FLAG_SENSING) { | |
8335 struct buf *rqbp; | |
8336 struct scsi_status *rqstatus; | |
8337 | |
8338 rqstatus = (struct scsi_status *)pkt->pkt_scbp; | |
8339 /* a manual request sense was done - get the information */ | |
8340 if (uscmdp->uscsi_flags & USCSI_RQENABLE) { | |
8341 int rqlen = SENSE_LENGTH - pkt->pkt_resid; | |
8342 | |
8343 rqbp = mp_uscmdp->rqbp; | |
8344 /* get the amount of data to copy into rqbuf */ | |
8345 rqlen = min(((int)uscmdp->uscsi_rqlen), rqlen); | |
8346 uscmdp->uscsi_rqresid = uscmdp->uscsi_rqlen - rqlen; | |
8347 uscmdp->uscsi_rqstatus = *((char *)rqstatus); | |
8348 if (uscmdp->uscsi_rqlen && uscmdp->uscsi_rqbuf) { | |
8349 bcopy(rqbp->b_un.b_addr, uscmdp->uscsi_rqbuf, | |
8350 rqlen); | |
8351 } | |
8352 MDI_PI_ERRSTAT(mp_uscmdp->pip, MDI_PI_TRANSERR); | |
8353 scsi_free_consistent_buf(rqbp); | |
8354 } | |
8355 VHCI_DEBUG(4, (CE_NOTE, NULL, "vhci_uscsi_iodone: FLAG_SENSING" | |
8356 "uscsi_rqstatus=0x%x uscsi_rqresid=%d\n", | |
8357 uscmdp->uscsi_rqstatus, uscmdp->uscsi_rqresid)); | |
8358 } else { | |
8359 struct scsi_status *status = | |
8360 (struct scsi_status *)pkt->pkt_scbp; | |
8361 /* | |
8362 * Command completed and we're not getting sense. Check for | |
8363 * errors and decide what to do next. | |
8364 */ | |
8365 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
8366 "vhci_uscsi_iodone: command appears complete: reason: %x", | |
8367 pkt->pkt_reason)); | |
8368 if (status->sts_chk) { | |
8369 /* need to manually get the request sense */ | |
8370 if (vhci_uscsi_send_sense(pkt, mp_uscmdp) == 0) { | |
8371 scsi_destroy_pkt(pkt); | |
8372 return; | |
8373 } | |
8374 } else { | |
8375 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
8376 "vhci_chk_err: appears complete")); | |
8377 err = 0; | |
8378 mdi_pi_kstat_iosupdate(mp_uscmdp->pip, bp); | |
8379 if (pkt->pkt_resid) { | |
8380 bp->b_resid += pkt->pkt_resid; | |
8381 } | |
8382 } | |
8383 } | |
8384 | |
8385 if (err) { | |
8386 if (bp->b_resid == 0) | |
8387 bp->b_resid = bp->b_bcount; | |
8388 bioerror(bp, err); | |
8389 bp->b_flags |= B_ERROR; | |
8390 } | |
8391 | |
8392 scsi_destroy_pkt(pkt); | |
8393 biodone(bp); | |
8394 | |
8395 VHCI_DEBUG(4, (CE_WARN, NULL, "vhci_uscsi_iodone: exit")); | |
8396 } | |
8397 | |
8398 /* | |
8399 * start routine for the mpapi uscsi command | |
8400 */ | |
8401 int | |
8402 vhci_uscsi_iostart(struct buf *bp) | |
8403 { | |
8404 struct scsi_pkt *pkt; | |
8405 struct uscsi_cmd *uscmdp; | |
8406 mp_uscsi_cmd_t *mp_uscmdp; | |
8407 int stat_size, rval; | |
8408 int retry = 0; | |
8409 | |
8410 ASSERT(bp->b_private != NULL); | |
8411 | |
8412 mp_uscmdp = (mp_uscsi_cmd_t *)bp->b_private; | |
8413 uscmdp = mp_uscmdp->uscmdp; | |
8414 if (uscmdp->uscsi_flags & USCSI_RQENABLE) { | |
8415 stat_size = SENSE_LENGTH; | |
8416 } else { | |
8417 stat_size = 1; | |
8418 } | |
8419 | |
8420 pkt = scsi_init_pkt(mp_uscmdp->ap, NULL, bp, uscmdp->uscsi_cdblen, | |
8421 stat_size, 0, 0, SLEEP_FUNC, NULL); | |
8422 if (pkt == NULL) { | |
8423 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
8424 "vhci_uscsi_iostart: rval: EINVAL")); | |
8425 bp->b_resid = bp->b_bcount; | |
8426 uscmdp->uscsi_resid = bp->b_bcount; | |
8427 bioerror(bp, EINVAL); | |
8428 biodone(bp); | |
8429 return (EINVAL); | |
8430 } | |
8431 | |
8432 pkt->pkt_time = uscmdp->uscsi_timeout; | |
8433 bcopy(uscmdp->uscsi_cdb, pkt->pkt_cdbp, (size_t)uscmdp->uscsi_cdblen); | |
8434 pkt->pkt_comp = vhci_uscsi_iodone; | |
8435 pkt->pkt_private = mp_uscmdp; | |
8436 if (uscmdp->uscsi_flags & USCSI_SILENT) | |
8437 pkt->pkt_flags |= FLAG_SILENT; | |
8438 if (uscmdp->uscsi_flags & USCSI_ISOLATE) | |
8439 pkt->pkt_flags |= FLAG_ISOLATE; | |
8440 if (uscmdp->uscsi_flags & USCSI_DIAGNOSE) | |
8441 pkt->pkt_flags |= FLAG_DIAGNOSE; | |
8442 if (uscmdp->uscsi_flags & USCSI_RENEGOT) { | |
8443 pkt->pkt_flags |= FLAG_RENEGOTIATE_WIDE_SYNC; | |
8444 } | |
8445 VHCI_DEBUG(4, (CE_WARN, NULL, | |
8446 "vhci_uscsi_iostart: ap: %p pkt: %p pcdbp: %p uscmdp: %p" | |
8447 " ucdbp: %p pcdblen: %d bp: %p count: %ld pip: %p" | |
8448 " stat_size: %d", | |
8449 (void *)mp_uscmdp->ap, (void *)pkt, (void *)pkt->pkt_cdbp, | |
8450 (void *)uscmdp, (void *)uscmdp->uscsi_cdb, pkt->pkt_cdblen, | |
8451 (void *)bp, bp->b_bcount, (void *)mp_uscmdp->pip, stat_size)); | |
8452 | |
6640
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|
8453 /* |
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|
8454 * NOTE: This code path is related to MPAPI uscsi(7I), so path |
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8455 * selection is not based on path_instance. |
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PSARC/2007/522 Disk enumeration for Sun Fire X4200 and X4200 M2
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|
8456 */ |
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|
8457 if (scsi_pkt_allocated_correctly(pkt)) |
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PSARC/2007/522 Disk enumeration for Sun Fire X4200 and X4200 M2
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|
8458 pkt->pkt_path_instance = 0; |
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|
8459 |
4851 | 8460 while (((rval = scsi_transport(pkt)) == TRAN_BUSY) && |
8461 retry < vhci_uscsi_retry_count) { | |
8462 delay(drv_usectohz(vhci_uscsi_delay)); | |
8463 retry++; | |
8464 } | |
8465 if (retry >= vhci_uscsi_retry_count) { | |
8466 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
8467 "vhci_uscsi_iostart: tran_busy - retry: %d", retry)); | |
8468 } | |
8469 switch (rval) { | |
8470 case TRAN_ACCEPT: | |
8471 rval = 0; | |
8472 break; | |
8473 | |
8474 default: | |
8475 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
8476 "vhci_uscsi_iostart: rval: %d count: %ld res: %ld", | |
8477 rval, bp->b_bcount, bp->b_resid)); | |
8478 bp->b_resid = bp->b_bcount; | |
8479 uscmdp->uscsi_resid = bp->b_bcount; | |
8480 bioerror(bp, EIO); | |
8481 scsi_destroy_pkt(pkt); | |
8482 biodone(bp); | |
8483 rval = EIO; | |
8484 MDI_PI_ERRSTAT(mp_uscmdp->pip, MDI_PI_TRANSERR); | |
8485 break; | |
8486 } | |
8487 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
8488 "vhci_uscsi_iostart: exit: rval: %d", rval)); | |
8489 return (rval); | |
8490 } | |
6941
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8491 |
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6459247 scsi_vhci does not return correct value for dma-max property
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|
8492 #ifdef DEBUG |
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6459247 scsi_vhci does not return correct value for dma-max property
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|
8493 |
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6459247 scsi_vhci does not return correct value for dma-max property
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|
8494 extern struct scsi_key_strings scsi_cmds[]; |
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|
8495 |
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6459247 scsi_vhci does not return correct value for dma-max property
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|
8496 static char * |
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6459247 scsi_vhci does not return correct value for dma-max property
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|
8497 vhci_print_scsi_cmd(char cmd) |
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6459247 scsi_vhci does not return correct value for dma-max property
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|
8498 { |
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6459247 scsi_vhci does not return correct value for dma-max property
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|
8499 char tmp[64]; |
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8500 char *cpnt; |
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6459247 scsi_vhci does not return correct value for dma-max property
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|
8501 |
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6459247 scsi_vhci does not return correct value for dma-max property
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8502 cpnt = scsi_cmd_name(cmd, scsi_cmds, tmp); |
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8503 /* tmp goes out of scope on return and caller sees garbage */ |
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8504 if (cpnt == tmp) { |
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|
8505 cpnt = "Unknown Command"; |
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6459247 scsi_vhci does not return correct value for dma-max property
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|
8506 } |
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|
8507 return (cpnt); |
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6459247 scsi_vhci does not return correct value for dma-max property
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|
8508 } |
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|
8509 |
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6459247 scsi_vhci does not return correct value for dma-max property
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|
8510 extern uchar_t scsi_cdb_size[]; |
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6459247 scsi_vhci does not return correct value for dma-max property
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|
8511 |
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6459247 scsi_vhci does not return correct value for dma-max property
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|
8512 static void |
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|
8513 vhci_print_cdb(dev_info_t *dip, uint_t level, char *title, uchar_t *cdb) |
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8514 { |
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8515 int len = scsi_cdb_size[CDB_GROUPID(cdb[0])]; |
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8516 char buf[256]; |
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|
8517 |
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8518 if (level == CE_NOTE) { |
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8519 vhci_log(level, dip, "path cmd %s\n", |
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8520 vhci_print_scsi_cmd(*cdb)); |
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8521 return; |
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|
8522 } |
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|
8523 |
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|
8524 (void) sprintf(buf, "%s for cmd(%s)", title, vhci_print_scsi_cmd(*cdb)); |
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8525 vhci_clean_print(dip, level, buf, cdb, len); |
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|
8526 } |
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|
8527 |
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|
8528 static void |
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|
8529 vhci_clean_print(dev_info_t *dev, uint_t level, char *title, uchar_t *data, |
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8530 int len) |
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|
8531 { |
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|
8532 int i; |
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|
8533 int c; |
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|
8534 char *format; |
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8535 char buf[256]; |
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8536 uchar_t byte; |
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8537 |
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|
8538 (void) sprintf(buf, "%s:\n", title); |
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8539 vhci_log(level, dev, "%s", buf); |
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8540 level = CE_CONT; |
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8541 for (i = 0; i < len; ) { |
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8542 buf[0] = 0; |
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8543 for (c = 0; c < 8 && i < len; c++, i++) { |
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8544 byte = (uchar_t)data[i]; |
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8545 if (byte < 0x10) |
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8546 format = "0x0%x "; |
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8547 else |
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8548 format = "0x%x "; |
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8549 (void) sprintf(&buf[(int)strlen(buf)], format, byte); |
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8550 } |
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8551 (void) sprintf(&buf[(int)strlen(buf)], "\n"); |
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8552 |
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8553 vhci_log(level, dev, "%s\n", buf); |
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8554 } |
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8555 } |
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8556 #endif |