Mercurial > illumos > illumos-gate
annotate usr/src/uts/common/io/scsi/adapters/scsi_vhci/scsi_vhci.c @ 8335:2b50eb467f7f
PSARC/2008/675 SCSI_HBA_ADDR_COMPLEX SCSA data structure linkage
6780376 PSARC/2008/675: SCSI_HBA_ADDR_COMPLEX
| author | Chris Horne <Chris.Horne@Sun.COM> |
|---|---|
| date | Wed, 10 Dec 2008 23:43:47 -0700 |
| parents | 2621e50fdf4a |
| children | cf2ef2a74136 |
| rev | line source |
|---|---|
| 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 | |
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94 static int vhci_bus_config_debug = 0; |
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95 |
| 4851 | 96 /* |
| 97 * Bidirectional map of 'target-port' to port id <pid> for support of | |
| 98 * iostat(1M) '-Xx' and '-Yx' output. | |
| 99 */ | |
| 100 static kmutex_t vhci_targetmap_mutex; | |
| 101 static uint_t vhci_targetmap_pid = 1; | |
| 102 static mod_hash_t *vhci_targetmap_bypid; /* <pid> -> 'target-port' */ | |
| 103 static mod_hash_t *vhci_targetmap_byport; /* 'target-port' -> <pid> */ | |
| 104 | |
| 105 /* | |
| 106 * functions exported by scsi_vhci struct cb_ops | |
| 107 */ | |
| 108 static int vhci_open(dev_t *, int, int, cred_t *); | |
| 109 static int vhci_close(dev_t, int, int, cred_t *); | |
| 110 static int vhci_ioctl(dev_t, int, intptr_t, int, cred_t *, int *); | |
| 111 | |
| 112 /* | |
| 113 * functions exported by scsi_vhci struct dev_ops | |
| 114 */ | |
| 115 static int vhci_getinfo(dev_info_t *, ddi_info_cmd_t, void *, void **); | |
| 116 static int vhci_attach(dev_info_t *, ddi_attach_cmd_t); | |
| 117 static int vhci_detach(dev_info_t *, ddi_detach_cmd_t); | |
| 118 | |
| 119 /* | |
| 120 * functions exported by scsi_vhci scsi_hba_tran_t transport table | |
| 121 */ | |
| 122 static int vhci_scsi_tgt_init(dev_info_t *, dev_info_t *, | |
| 123 scsi_hba_tran_t *, struct scsi_device *); | |
| 124 static void vhci_scsi_tgt_free(dev_info_t *, dev_info_t *, scsi_hba_tran_t *, | |
| 125 struct scsi_device *); | |
| 126 static int vhci_pgr_register_start(scsi_vhci_lun_t *, struct scsi_pkt *); | |
| 127 static int vhci_scsi_start(struct scsi_address *, struct scsi_pkt *); | |
| 128 static int vhci_scsi_abort(struct scsi_address *, struct scsi_pkt *); | |
| 129 static int vhci_scsi_reset(struct scsi_address *, int); | |
| 130 static int vhci_scsi_reset_target(struct scsi_address *, int level, | |
| 131 uint8_t select_path); | |
| 132 static int vhci_scsi_reset_bus(struct scsi_address *); | |
| 133 static int vhci_scsi_getcap(struct scsi_address *, char *, int); | |
| 134 static int vhci_scsi_setcap(struct scsi_address *, char *, int, int); | |
| 135 static int vhci_commoncap(struct scsi_address *, char *, int, int, int); | |
| 136 static int vhci_pHCI_cap(struct scsi_address *ap, char *cap, int val, int whom, | |
| 137 mdi_pathinfo_t *pip); | |
| 138 static struct scsi_pkt *vhci_scsi_init_pkt(struct scsi_address *, | |
| 139 struct scsi_pkt *, struct buf *, int, int, int, int, int (*)(), caddr_t); | |
| 140 static void vhci_scsi_destroy_pkt(struct scsi_address *, struct scsi_pkt *); | |
| 141 static void vhci_scsi_dmafree(struct scsi_address *, struct scsi_pkt *); | |
| 142 static void vhci_scsi_sync_pkt(struct scsi_address *, struct scsi_pkt *); | |
| 143 static int vhci_scsi_reset_notify(struct scsi_address *, int, void (*)(caddr_t), | |
| 144 caddr_t); | |
| 145 static int vhci_scsi_get_bus_addr(struct scsi_device *, char *, int); | |
| 146 static int vhci_scsi_get_name(struct scsi_device *, char *, int); | |
| 147 static int vhci_scsi_bus_power(dev_info_t *, void *, pm_bus_power_op_t, | |
| 148 void *, void *); | |
| 149 static int vhci_scsi_bus_config(dev_info_t *, uint_t, ddi_bus_config_op_t, | |
| 150 void *, dev_info_t **); | |
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151 static int vhci_scsi_bus_unconfig(dev_info_t *, uint_t, ddi_bus_config_op_t, |
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152 void *); |
| 4851 | 153 |
| 154 /* | |
| 155 * functions registered with the mpxio framework via mdi_vhci_ops_t | |
| 156 */ | |
| 157 static int vhci_pathinfo_init(dev_info_t *, mdi_pathinfo_t *, int); | |
| 158 static int vhci_pathinfo_uninit(dev_info_t *, mdi_pathinfo_t *, int); | |
| 159 static int vhci_pathinfo_state_change(dev_info_t *, mdi_pathinfo_t *, | |
| 160 mdi_pathinfo_state_t, uint32_t, int); | |
| 161 static int vhci_pathinfo_online(dev_info_t *, mdi_pathinfo_t *, int); | |
| 162 static int vhci_pathinfo_offline(dev_info_t *, mdi_pathinfo_t *, int); | |
| 163 static int vhci_failover(dev_info_t *, dev_info_t *, int); | |
| 164 static void vhci_client_attached(dev_info_t *); | |
| 165 | |
| 166 static int vhci_ctl(dev_t, int, intptr_t, int, cred_t *, int *); | |
| 167 static int vhci_devctl(dev_t, int, intptr_t, int, cred_t *, int *); | |
| 168 static int vhci_ioc_get_phci_path(sv_iocdata_t *, caddr_t, int, caddr_t); | |
| 169 static int vhci_ioc_get_client_path(sv_iocdata_t *, caddr_t, int, caddr_t); | |
| 170 static int vhci_ioc_get_paddr(sv_iocdata_t *, caddr_t, int, caddr_t); | |
| 171 static int vhci_ioc_send_client_path(caddr_t, sv_iocdata_t *, int, caddr_t); | |
| 172 static void vhci_ioc_devi_to_path(dev_info_t *, caddr_t); | |
| 173 static int vhci_get_phci_path_list(dev_info_t *, sv_path_info_t *, uint_t); | |
| 174 static int vhci_get_client_path_list(dev_info_t *, sv_path_info_t *, uint_t); | |
| 175 static int vhci_get_iocdata(const void *, sv_iocdata_t *, int, caddr_t); | |
| 176 static int vhci_get_iocswitchdata(const void *, sv_switch_to_cntlr_iocdata_t *, | |
| 177 int, caddr_t); | |
| 178 static int vhci_ioc_alloc_pathinfo(sv_path_info_t **, sv_path_info_t **, | |
| 179 uint_t, sv_iocdata_t *, int, caddr_t); | |
| 180 static void vhci_ioc_free_pathinfo(sv_path_info_t *, sv_path_info_t *, uint_t); | |
| 181 static int vhci_ioc_send_pathinfo(sv_path_info_t *, sv_path_info_t *, uint_t, | |
| 182 sv_iocdata_t *, int, caddr_t); | |
| 183 static int vhci_handle_ext_fo(struct scsi_pkt *, int); | |
| 184 static int vhci_efo_watch_cb(caddr_t, struct scsi_watch_result *); | |
| 185 static int vhci_quiesce_lun(struct scsi_vhci_lun *); | |
| 186 static int vhci_pgr_validate_and_register(scsi_vhci_priv_t *); | |
| 187 static void vhci_dispatch_scsi_start(void *); | |
| 188 static void vhci_efo_done(void *); | |
| 189 static void vhci_initiate_auto_failback(void *); | |
| 190 static void vhci_update_pHCI_pkt(struct vhci_pkt *, struct scsi_pkt *); | |
| 191 static int vhci_update_pathinfo(struct scsi_device *, mdi_pathinfo_t *, | |
| 192 struct scsi_failover_ops *, scsi_vhci_lun_t *, struct scsi_vhci *); | |
| 193 static void vhci_kstat_create_pathinfo(mdi_pathinfo_t *); | |
| 194 static int vhci_quiesce_paths(dev_info_t *, dev_info_t *, | |
| 195 scsi_vhci_lun_t *, char *, char *); | |
| 196 | |
| 197 static char *vhci_devnm_to_guid(char *); | |
| 198 static int vhci_bind_transport(struct scsi_address *, struct vhci_pkt *, | |
| 199 int, int (*func)(caddr_t)); | |
| 200 static void vhci_intr(struct scsi_pkt *); | |
| 201 static int vhci_do_prout(scsi_vhci_priv_t *); | |
| 202 static void vhci_run_cmd(void *); | |
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203 static int vhci_do_prin(struct vhci_pkt **); |
| 4851 | 204 static struct scsi_pkt *vhci_create_retry_pkt(struct vhci_pkt *); |
| 205 static struct vhci_pkt *vhci_sync_retry_pkt(struct vhci_pkt *); | |
| 206 static struct scsi_vhci_lun *vhci_lun_lookup(dev_info_t *); | |
| 207 static struct scsi_vhci_lun *vhci_lun_lookup_alloc(dev_info_t *, char *, int *); | |
| 208 static void vhci_lun_free(dev_info_t *); | |
| 209 static int vhci_recovery_reset(scsi_vhci_lun_t *, struct scsi_address *, | |
| 210 uint8_t, uint8_t); | |
| 211 void vhci_update_pathstates(void *); | |
| 212 | |
| 213 #ifdef DEBUG | |
| 214 static void vhci_print_prin_keys(vhci_prin_readkeys_t *, int); | |
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215 static void vhci_print_cdb(dev_info_t *dip, uint_t level, |
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216 char *title, uchar_t *cdb); |
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217 static void vhci_clean_print(dev_info_t *dev, uint_t level, |
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218 char *title, uchar_t *data, int len); |
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219 #endif |
| 4851 | 220 static void vhci_print_prout_keys(scsi_vhci_lun_t *, char *); |
| 221 static void vhci_uscsi_iodone(struct scsi_pkt *pkt); | |
| 222 | |
| 223 /* | |
| 224 * MP-API related functions | |
| 225 */ | |
| 226 extern int vhci_mpapi_init(struct scsi_vhci *); | |
| 227 extern void vhci_mpapi_add_dev_prod(struct scsi_vhci *, char *); | |
| 228 extern int vhci_mpapi_ctl(dev_t, int, intptr_t, int, cred_t *, int *); | |
| 229 extern void vhci_update_mpapi_data(struct scsi_vhci *, | |
| 230 scsi_vhci_lun_t *, mdi_pathinfo_t *); | |
| 231 extern void* vhci_get_mpapi_item(struct scsi_vhci *, mpapi_list_header_t *, | |
| 232 uint8_t, void*); | |
| 233 extern void vhci_mpapi_set_path_state(dev_info_t *, mdi_pathinfo_t *, int); | |
| 234 extern int vhci_mpapi_update_tpg_acc_state_for_lu(struct scsi_vhci *, | |
| 235 scsi_vhci_lun_t *); | |
| 236 | |
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237 #define VHCI_DMA_MAX_XFER_CAP INT_MAX |
| 4851 | 238 |
| 239 #define VHCI_MAX_PGR_RETRIES 3 | |
| 240 | |
| 241 /* | |
| 242 * Macros for the device-type mpxio options | |
| 243 */ | |
| 244 #define LOAD_BALANCE_OPTIONS "load-balance-options" | |
| 245 #define LOGICAL_BLOCK_REGION_SIZE "region-size" | |
| 246 #define MPXIO_OPTIONS_LIST "device-type-mpxio-options-list" | |
| 247 #define DEVICE_TYPE_STR "device-type" | |
| 248 #define isdigit(ch) ((ch) >= '0' && (ch) <= '9') | |
| 249 | |
| 250 static struct cb_ops vhci_cb_ops = { | |
| 251 vhci_open, /* open */ | |
| 252 vhci_close, /* close */ | |
| 253 nodev, /* strategy */ | |
| 254 nodev, /* print */ | |
| 255 nodev, /* dump */ | |
| 256 nodev, /* read */ | |
| 257 nodev, /* write */ | |
| 258 vhci_ioctl, /* ioctl */ | |
| 259 nodev, /* devmap */ | |
| 260 nodev, /* mmap */ | |
| 261 nodev, /* segmap */ | |
| 262 nochpoll, /* chpoll */ | |
| 263 ddi_prop_op, /* cb_prop_op */ | |
| 264 0, /* streamtab */ | |
| 265 D_NEW | D_MP, /* cb_flag */ | |
| 266 CB_REV, /* rev */ | |
| 267 nodev, /* aread */ | |
| 268 nodev /* awrite */ | |
| 269 }; | |
| 270 | |
| 271 static struct dev_ops vhci_ops = { | |
| 272 DEVO_REV, | |
| 273 0, | |
| 274 vhci_getinfo, | |
| 275 nulldev, /* identify */ | |
| 276 nulldev, /* probe */ | |
| 277 vhci_attach, /* attach and detach are mandatory */ | |
| 278 vhci_detach, | |
| 279 nodev, /* reset */ | |
| 280 &vhci_cb_ops, /* cb_ops */ | |
| 281 NULL, /* bus_ops */ | |
| 282 NULL, /* power */ | |
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283 ddi_quiesce_not_needed, /* quiesce */ |
| 4851 | 284 }; |
| 285 | |
| 286 extern struct mod_ops mod_driverops; | |
| 287 | |
| 288 static struct modldrv modldrv = { | |
| 289 &mod_driverops, | |
| 290 vhci_version_name, /* module name */ | |
| 291 &vhci_ops | |
| 292 }; | |
| 293 | |
| 294 static struct modlinkage modlinkage = { | |
| 295 MODREV_1, | |
| 296 &modldrv, | |
| 297 NULL | |
| 298 }; | |
| 299 | |
| 300 static mdi_vhci_ops_t vhci_opinfo = { | |
| 301 MDI_VHCI_OPS_REV, | |
| 302 vhci_pathinfo_init, /* Pathinfo node init callback */ | |
| 303 vhci_pathinfo_uninit, /* Pathinfo uninit callback */ | |
| 304 vhci_pathinfo_state_change, /* Pathinfo node state change */ | |
| 305 vhci_failover, /* failover callback */ | |
| 306 vhci_client_attached /* client attached callback */ | |
| 307 }; | |
| 308 | |
| 309 /* | |
| 310 * The scsi_failover table defines an ordered set of 'fops' modules supported | |
| 311 * by scsi_vhci. Currently, initialize this table from the 'ddi-forceload' | |
| 312 * property specified in scsi_vhci.conf. | |
| 313 */ | |
| 314 struct scsi_failover { | |
| 315 ddi_modhandle_t sf_mod; | |
| 316 struct scsi_failover_ops *sf_sfo; | |
| 317 } *scsi_failover_table; | |
| 318 uint_t scsi_nfailover; | |
| 319 | |
| 320 int | |
| 321 _init(void) | |
| 322 { | |
| 323 int rval; | |
| 324 | |
| 325 /* | |
| 326 * Allocate soft state and prepare to do ddi_soft_state_zalloc() | |
| 327 * before registering with the transport first. | |
| 328 */ | |
| 329 if ((rval = ddi_soft_state_init(&vhci_softstate, | |
| 330 sizeof (struct scsi_vhci), 1)) != 0) { | |
| 331 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
| 332 "!_init:soft state init failed\n")); | |
| 333 return (rval); | |
| 334 } | |
| 335 | |
| 336 if ((rval = scsi_hba_init(&modlinkage)) != 0) { | |
| 337 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
| 338 "!_init: scsi hba init failed\n")); | |
| 339 ddi_soft_state_fini(&vhci_softstate); | |
| 340 return (rval); | |
| 341 } | |
| 342 | |
| 343 mutex_init(&vhci_global_mutex, NULL, MUTEX_DRIVER, NULL); | |
| 344 cv_init(&vhci_cv, NULL, CV_DRIVER, NULL); | |
| 345 | |
| 346 mutex_init(&vhci_targetmap_mutex, NULL, MUTEX_DRIVER, NULL); | |
| 347 vhci_targetmap_byport = mod_hash_create_strhash( | |
| 348 "vhci_targetmap_byport", 256, mod_hash_null_valdtor); | |
| 349 vhci_targetmap_bypid = mod_hash_create_idhash( | |
| 350 "vhci_targetmap_bypid", 256, mod_hash_null_valdtor); | |
| 351 | |
| 352 if ((rval = mod_install(&modlinkage)) != 0) { | |
| 353 VHCI_DEBUG(1, (CE_NOTE, NULL, "!_init: mod_install failed\n")); | |
| 354 if (vhci_targetmap_bypid) | |
| 355 mod_hash_destroy_idhash(vhci_targetmap_bypid); | |
| 356 if (vhci_targetmap_byport) | |
| 357 mod_hash_destroy_strhash(vhci_targetmap_byport); | |
| 358 mutex_destroy(&vhci_targetmap_mutex); | |
| 359 cv_destroy(&vhci_cv); | |
| 360 mutex_destroy(&vhci_global_mutex); | |
| 361 scsi_hba_fini(&modlinkage); | |
| 362 ddi_soft_state_fini(&vhci_softstate); | |
| 363 } | |
| 364 return (rval); | |
| 365 } | |
| 366 | |
| 367 | |
| 368 /* | |
| 369 * the system is done with us as a driver, so clean up | |
| 370 */ | |
| 371 int | |
| 372 _fini(void) | |
| 373 { | |
| 374 int rval; | |
| 375 | |
| 376 /* | |
| 377 * don't start cleaning up until we know that the module remove | |
| 378 * has worked -- if this works, then we know that each instance | |
| 379 * has successfully been DDI_DETACHed | |
| 380 */ | |
| 381 if ((rval = mod_remove(&modlinkage)) != 0) { | |
| 382 VHCI_DEBUG(4, (CE_NOTE, NULL, "!_fini: mod_remove failed\n")); | |
| 383 return (rval); | |
| 384 } | |
| 385 | |
| 386 if (vhci_targetmap_bypid) | |
| 387 mod_hash_destroy_idhash(vhci_targetmap_bypid); | |
| 388 if (vhci_targetmap_byport) | |
| 389 mod_hash_destroy_strhash(vhci_targetmap_byport); | |
| 390 mutex_destroy(&vhci_targetmap_mutex); | |
| 391 cv_destroy(&vhci_cv); | |
| 392 mutex_destroy(&vhci_global_mutex); | |
| 393 scsi_hba_fini(&modlinkage); | |
| 394 ddi_soft_state_fini(&vhci_softstate); | |
| 395 | |
| 396 return (rval); | |
| 397 } | |
| 398 | |
| 399 int | |
| 400 _info(struct modinfo *modinfop) | |
| 401 { | |
| 402 return (mod_info(&modlinkage, modinfop)); | |
| 403 } | |
| 404 | |
| 405 /* | |
| 406 * Lookup scsi_failover by "short name" of failover module. | |
| 407 */ | |
| 408 struct scsi_failover_ops * | |
| 409 vhci_failover_ops_by_name(char *name) | |
| 410 { | |
| 411 struct scsi_failover *sf; | |
| 412 | |
| 413 for (sf = scsi_failover_table; sf->sf_mod; sf++) { | |
| 414 if (sf->sf_sfo == NULL) | |
| 415 continue; | |
| 416 if (strcmp(sf->sf_sfo->sfo_name, name) == 0) | |
| 417 return (sf->sf_sfo); | |
| 418 } | |
| 419 return (NULL); | |
| 420 } | |
| 421 | |
| 422 /* | |
| 423 * Load all scsi_failover_ops 'fops' modules. | |
| 424 */ | |
| 425 static void | |
| 426 vhci_failover_modopen(struct scsi_vhci *vhci) | |
| 427 { | |
| 428 char **module; | |
| 429 int i; | |
| 430 struct scsi_failover *sf; | |
| 431 char **dt; | |
| 432 int e; | |
| 433 | |
| 434 if (scsi_failover_table) | |
| 435 return; | |
| 436 | |
| 437 /* Get the list of modules from scsi_vhci.conf */ | |
| 438 if (ddi_prop_lookup_string_array(DDI_DEV_T_ANY, | |
| 439 vhci->vhci_dip, DDI_PROP_DONTPASS, "ddi-forceload", | |
| 440 &module, &scsi_nfailover) != DDI_PROP_SUCCESS) { | |
| 441 cmn_err(CE_WARN, "scsi_vhci: " | |
| 442 "scsi_vhci.conf is missing 'ddi-forceload'"); | |
| 443 return; | |
| 444 } | |
| 445 if (scsi_nfailover == 0) { | |
| 446 cmn_err(CE_WARN, "scsi_vhci: " | |
| 447 "scsi_vhci.conf has empty 'ddi-forceload'"); | |
|
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diff
changeset
|
448 ddi_prop_free(module); |
| 4851 | 449 return; |
| 450 } | |
| 451 | |
| 452 /* allocate failover table based on number of modules */ | |
| 453 scsi_failover_table = (struct scsi_failover *) | |
| 454 kmem_zalloc(sizeof (struct scsi_failover) * (scsi_nfailover + 1), | |
| 455 KM_SLEEP); | |
| 456 | |
| 457 /* loop over modules specified in scsi_vhci.conf and open each module */ | |
| 458 for (i = 0, sf = scsi_failover_table; i < scsi_nfailover; i++) { | |
| 459 if (module[i] == NULL) | |
| 460 continue; | |
| 461 | |
| 462 sf->sf_mod = ddi_modopen(module[i], KRTLD_MODE_FIRST, &e); | |
| 463 if (sf->sf_mod == NULL) { | |
| 464 /* | |
| 465 * A module returns EEXIST if other software is | |
| 466 * supporting the intended function: for example | |
| 467 * the scsi_vhci_f_sum_emc module returns EEXIST | |
| 468 * from _init if EMC powerpath software is installed. | |
| 469 */ | |
| 470 if (e != EEXIST) | |
| 471 cmn_err(CE_WARN, "scsi_vhci: unable to open " | |
| 472 "module '%s', error %d", module[i], e); | |
| 473 continue; | |
| 474 } | |
| 475 sf->sf_sfo = ddi_modsym(sf->sf_mod, | |
| 476 "scsi_vhci_failover_ops", &e); | |
| 477 if (sf->sf_sfo == NULL) { | |
| 478 cmn_err(CE_WARN, "scsi_vhci: " | |
| 479 "unable to import 'scsi_failover_ops' from '%s', " | |
| 480 "error %d", module[i], e); | |
| 481 (void) ddi_modclose(sf->sf_mod); | |
| 482 sf->sf_mod = NULL; | |
| 483 continue; | |
| 484 } | |
| 485 | |
| 486 /* register vid/pid of devices supported with mpapi */ | |
| 487 for (dt = sf->sf_sfo->sfo_devices; *dt; dt++) | |
| 488 vhci_mpapi_add_dev_prod(vhci, *dt); | |
| 489 sf++; | |
| 490 } | |
| 491 | |
| 492 /* verify that at least the "well-known" modules were there */ | |
| 493 if (vhci_failover_ops_by_name(SFO_NAME_SYM) == NULL) | |
| 494 cmn_err(CE_WARN, "scsi_vhci: well-known module \"" | |
| 495 SFO_NAME_SYM "\" not defined in scsi_vhci.conf's " | |
| 496 "'ddi-forceload'"); | |
| 497 if (vhci_failover_ops_by_name(SFO_NAME_TPGS) == NULL) | |
| 498 cmn_err(CE_WARN, "scsi_vhci: well-known module \"" | |
| 499 SFO_NAME_TPGS "\" not defined in scsi_vhci.conf's " | |
| 500 "'ddi-forceload'"); | |
| 501 | |
| 502 /* call sfo_init for modules that need it */ | |
| 503 for (sf = scsi_failover_table; sf->sf_mod; sf++) { | |
| 504 if (sf->sf_sfo && sf->sf_sfo->sfo_init) | |
|
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parents:
6777
diff
changeset
|
505 sf->sf_sfo->sfo_init(); |
| 4851 | 506 } |
|
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changeset
|
507 |
|
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diff
changeset
|
508 ddi_prop_free(module); |
| 4851 | 509 } |
| 510 | |
| 511 /* | |
| 512 * unload all loaded scsi_failover_ops modules | |
| 513 */ | |
| 514 static void | |
| 515 vhci_failover_modclose() | |
| 516 { | |
| 517 struct scsi_failover *sf; | |
| 518 | |
| 519 for (sf = scsi_failover_table; sf->sf_mod; sf++) { | |
| 520 if ((sf->sf_mod == NULL) || (sf->sf_sfo == NULL)) | |
| 521 continue; | |
| 522 (void) ddi_modclose(sf->sf_mod); | |
| 523 sf->sf_mod = NULL; | |
| 524 sf->sf_sfo = NULL; | |
| 525 } | |
| 526 | |
| 527 if (scsi_failover_table && scsi_nfailover) | |
| 528 kmem_free(scsi_failover_table, | |
| 529 sizeof (struct scsi_failover) * (scsi_nfailover + 1)); | |
| 530 scsi_failover_table = NULL; | |
| 531 scsi_nfailover = 0; | |
| 532 } | |
| 533 | |
| 534 /* ARGSUSED */ | |
| 535 static int | |
| 536 vhci_open(dev_t *devp, int flag, int otype, cred_t *credp) | |
| 537 { | |
| 538 struct scsi_vhci *vhci; | |
| 539 | |
| 540 if (otype != OTYP_CHR) { | |
| 541 return (EINVAL); | |
| 542 } | |
| 543 | |
| 544 vhci = ddi_get_soft_state(vhci_softstate, MINOR2INST(getminor(*devp))); | |
| 545 if (vhci == NULL) { | |
| 546 VHCI_DEBUG(1, (CE_NOTE, NULL, "vhci_open: failed ENXIO\n")); | |
| 547 return (ENXIO); | |
| 548 } | |
| 549 | |
| 550 mutex_enter(&vhci->vhci_mutex); | |
| 551 if ((flag & FEXCL) && (vhci->vhci_state & VHCI_STATE_OPEN)) { | |
| 552 mutex_exit(&vhci->vhci_mutex); | |
| 553 vhci_log(CE_NOTE, vhci->vhci_dip, | |
| 554 "!vhci%d: Already open\n", getminor(*devp)); | |
| 555 return (EBUSY); | |
| 556 } | |
| 557 | |
| 558 vhci->vhci_state |= VHCI_STATE_OPEN; | |
| 559 mutex_exit(&vhci->vhci_mutex); | |
| 560 return (0); | |
| 561 } | |
| 562 | |
| 563 | |
| 564 /* ARGSUSED */ | |
| 565 static int | |
| 566 vhci_close(dev_t dev, int flag, int otype, cred_t *credp) | |
| 567 { | |
| 568 struct scsi_vhci *vhci; | |
| 569 | |
| 570 if (otype != OTYP_CHR) { | |
| 571 return (EINVAL); | |
| 572 } | |
| 573 | |
| 574 vhci = ddi_get_soft_state(vhci_softstate, MINOR2INST(getminor(dev))); | |
| 575 if (vhci == NULL) { | |
| 576 VHCI_DEBUG(1, (CE_NOTE, NULL, "vhci_close: failed ENXIO\n")); | |
| 577 return (ENXIO); | |
| 578 } | |
| 579 | |
| 580 mutex_enter(&vhci->vhci_mutex); | |
| 581 vhci->vhci_state &= ~VHCI_STATE_OPEN; | |
| 582 mutex_exit(&vhci->vhci_mutex); | |
| 583 | |
| 584 return (0); | |
| 585 } | |
| 586 | |
| 587 /* ARGSUSED */ | |
| 588 static int | |
| 589 vhci_ioctl(dev_t dev, int cmd, intptr_t data, int mode, | |
| 590 cred_t *credp, int *rval) | |
| 591 { | |
| 592 if (IS_DEVCTL(cmd)) { | |
| 593 return (vhci_devctl(dev, cmd, data, mode, credp, rval)); | |
| 594 } else if (cmd == MP_CMD) { | |
| 595 return (vhci_mpapi_ctl(dev, cmd, data, mode, credp, rval)); | |
| 596 } else { | |
| 597 return (vhci_ctl(dev, cmd, data, mode, credp, rval)); | |
| 598 } | |
| 599 } | |
| 600 | |
| 601 /* | |
| 602 * attach the module | |
| 603 */ | |
| 604 static int | |
| 605 vhci_attach(dev_info_t *dip, ddi_attach_cmd_t cmd) | |
| 606 { | |
| 607 int rval = DDI_FAILURE; | |
| 608 int scsi_hba_attached = 0; | |
| 609 int vhci_attached = 0; | |
| 610 int mutex_initted = 0; | |
| 611 int instance; | |
| 612 struct scsi_vhci *vhci; | |
| 613 scsi_hba_tran_t *tran; | |
| 614 char cache_name_buf[64]; | |
| 615 char *data; | |
| 616 | |
| 617 VHCI_DEBUG(4, (CE_NOTE, NULL, "vhci_attach: cmd=0x%x\n", cmd)); | |
| 618 | |
| 619 instance = ddi_get_instance(dip); | |
| 620 | |
| 621 switch (cmd) { | |
| 622 case DDI_ATTACH: | |
| 623 break; | |
| 624 | |
| 625 case DDI_RESUME: | |
| 626 case DDI_PM_RESUME: | |
| 627 VHCI_DEBUG(1, (CE_NOTE, NULL, "!vhci_attach: resume not yet" | |
| 628 "implemented\n")); | |
| 629 return (rval); | |
| 630 | |
| 631 default: | |
| 632 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
| 633 "!vhci_attach: unknown ddi command\n")); | |
| 634 return (rval); | |
| 635 } | |
| 636 | |
| 637 /* | |
| 638 * Allocate vhci data structure. | |
| 639 */ | |
| 640 if (ddi_soft_state_zalloc(vhci_softstate, instance) != DDI_SUCCESS) { | |
| 641 VHCI_DEBUG(1, (CE_NOTE, dip, "!vhci_attach:" | |
| 642 "soft state alloc failed\n")); | |
| 643 return (DDI_FAILURE); | |
| 644 } | |
| 645 | |
| 646 if ((vhci = ddi_get_soft_state(vhci_softstate, instance)) == NULL) { | |
| 647 VHCI_DEBUG(1, (CE_NOTE, dip, "!vhci_attach:" | |
| 648 "bad soft state\n")); | |
| 649 ddi_soft_state_free(vhci_softstate, instance); | |
| 650 return (DDI_FAILURE); | |
| 651 } | |
| 652 | |
| 653 /* Allocate packet cache */ | |
| 654 (void) snprintf(cache_name_buf, sizeof (cache_name_buf), | |
| 655 "vhci%d_cache", instance); | |
| 656 | |
| 657 mutex_init(&vhci->vhci_mutex, NULL, MUTEX_DRIVER, NULL); | |
| 658 mutex_initted++; | |
| 659 | |
| 660 /* | |
| 661 * Allocate a transport structure | |
| 662 */ | |
| 663 tran = scsi_hba_tran_alloc(dip, SCSI_HBA_CANSLEEP); | |
| 664 ASSERT(tran != NULL); | |
| 665 | |
| 666 vhci->vhci_tran = tran; | |
| 667 vhci->vhci_dip = dip; | |
| 668 vhci->vhci_instance = instance; | |
| 669 | |
| 670 tran->tran_hba_private = vhci; | |
| 671 tran->tran_tgt_init = vhci_scsi_tgt_init; | |
| 672 tran->tran_tgt_probe = NULL; | |
| 673 tran->tran_tgt_free = vhci_scsi_tgt_free; | |
| 674 | |
| 675 tran->tran_start = vhci_scsi_start; | |
| 676 tran->tran_abort = vhci_scsi_abort; | |
| 677 tran->tran_reset = vhci_scsi_reset; | |
| 678 tran->tran_getcap = vhci_scsi_getcap; | |
| 679 tran->tran_setcap = vhci_scsi_setcap; | |
| 680 tran->tran_init_pkt = vhci_scsi_init_pkt; | |
| 681 tran->tran_destroy_pkt = vhci_scsi_destroy_pkt; | |
| 682 tran->tran_dmafree = vhci_scsi_dmafree; | |
| 683 tran->tran_sync_pkt = vhci_scsi_sync_pkt; | |
| 684 tran->tran_reset_notify = vhci_scsi_reset_notify; | |
| 685 | |
| 686 tran->tran_get_bus_addr = vhci_scsi_get_bus_addr; | |
| 687 tran->tran_get_name = vhci_scsi_get_name; | |
| 688 tran->tran_bus_reset = NULL; | |
| 689 tran->tran_quiesce = NULL; | |
| 690 tran->tran_unquiesce = NULL; | |
| 691 | |
| 692 /* | |
| 693 * register event notification routines with scsa | |
| 694 */ | |
| 695 tran->tran_get_eventcookie = NULL; | |
| 696 tran->tran_add_eventcall = NULL; | |
| 697 tran->tran_remove_eventcall = NULL; | |
| 698 tran->tran_post_event = NULL; | |
| 699 | |
| 700 tran->tran_bus_power = vhci_scsi_bus_power; | |
| 701 | |
| 702 tran->tran_bus_config = vhci_scsi_bus_config; | |
|
8335
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Chris Horne <Chris.Horne@Sun.COM>
parents:
7656
diff
changeset
|
703 tran->tran_bus_unconfig = vhci_scsi_bus_unconfig; |
| 4851 | 704 |
| 705 /* | |
| 706 * Attach this instance with the mpxio framework | |
| 707 */ | |
| 708 if (mdi_vhci_register(MDI_HCI_CLASS_SCSI, dip, &vhci_opinfo, 0) | |
| 709 != MDI_SUCCESS) { | |
| 710 VHCI_DEBUG(1, (CE_NOTE, dip, "!vhci_attach:" | |
| 711 "mdi_vhci_register failed\n")); | |
| 712 goto attach_fail; | |
| 713 } | |
| 714 vhci_attached++; | |
| 715 | |
| 716 /* | |
| 717 * Attach this instance of the hba. | |
| 718 * | |
| 719 * Regarding dma attributes: Since scsi_vhci is a virtual scsi HBA | |
| 720 * driver, it has nothing to do with DMA. However, when calling | |
| 721 * scsi_hba_attach_setup() we need to pass something valid in the | |
| 722 * dma attributes parameter. So we just use scsi_alloc_attr. | |
| 723 * SCSA itself seems to care only for dma_attr_minxfer and | |
| 724 * dma_attr_burstsizes fields of dma attributes structure. | |
| 725 * It expects those fileds to be non-zero. | |
| 726 */ | |
| 727 if (scsi_hba_attach_setup(dip, &scsi_alloc_attr, tran, | |
|
8335
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Chris Horne <Chris.Horne@Sun.COM>
parents:
7656
diff
changeset
|
728 SCSI_HBA_ADDR_COMPLEX) != DDI_SUCCESS) { |
| 4851 | 729 VHCI_DEBUG(1, (CE_NOTE, dip, "!vhci_attach:" |
| 730 "hba attach failed\n")); | |
| 731 goto attach_fail; | |
| 732 } | |
| 733 scsi_hba_attached++; | |
| 734 | |
| 735 if (ddi_create_minor_node(dip, "devctl", S_IFCHR, | |
| 736 INST2DEVCTL(instance), DDI_NT_SCSI_NEXUS, 0) != DDI_SUCCESS) { | |
| 737 VHCI_DEBUG(1, (CE_NOTE, dip, "!vhci_attach:" | |
| 738 " ddi_create_minor_node failed\n")); | |
| 739 goto attach_fail; | |
| 740 } | |
| 741 | |
| 742 /* | |
| 743 * Set pm-want-child-notification property for | |
| 744 * power management of the phci and client | |
| 745 */ | |
| 746 if (ddi_prop_create(DDI_DEV_T_NONE, dip, DDI_PROP_CANSLEEP, | |
| 747 "pm-want-child-notification?", NULL, NULL) != DDI_PROP_SUCCESS) { | |
| 748 cmn_err(CE_WARN, | |
| 749 "%s%d fail to create pm-want-child-notification? prop", | |
| 750 ddi_driver_name(dip), ddi_get_instance(dip)); | |
| 751 goto attach_fail; | |
| 752 } | |
| 753 | |
| 754 vhci->vhci_taskq = taskq_create("vhci_taskq", 1, MINCLSYSPRI, 1, 4, 0); | |
| 755 vhci->vhci_update_pathstates_taskq = | |
| 756 taskq_create("vhci_update_pathstates", VHCI_NUM_UPDATE_TASKQ, | |
| 757 MINCLSYSPRI, 1, 4, 0); | |
| 758 ASSERT(vhci->vhci_taskq); | |
| 759 ASSERT(vhci->vhci_update_pathstates_taskq); | |
| 760 | |
| 761 /* | |
| 762 * Set appropriate configuration flags based on options set in | |
| 763 * conf file. | |
| 764 */ | |
| 765 vhci->vhci_conf_flags = 0; | |
| 766 if (ddi_prop_lookup_string(DDI_DEV_T_ANY, dip, PROPFLAGS, | |
| 767 "auto-failback", &data) == DDI_SUCCESS) { | |
| 768 if (strcmp(data, "enable") == 0) | |
| 769 vhci->vhci_conf_flags |= VHCI_CONF_FLAGS_AUTO_FAILBACK; | |
| 770 ddi_prop_free(data); | |
| 771 } | |
| 772 | |
| 773 if (!(vhci->vhci_conf_flags & VHCI_CONF_FLAGS_AUTO_FAILBACK)) | |
| 774 vhci_log(CE_NOTE, dip, "!Auto-failback capability " | |
| 775 "disabled through scsi_vhci.conf file."); | |
| 776 | |
| 777 /* | |
| 778 * Allocate an mpapi private structure | |
| 779 */ | |
| 780 vhci->mp_priv = kmem_zalloc(sizeof (mpapi_priv_t), KM_SLEEP); | |
| 781 if (vhci_mpapi_init(vhci) != 0) { | |
| 782 VHCI_DEBUG(1, (CE_WARN, NULL, "!vhci_attach: " | |
| 783 "vhci_mpapi_init() failed")); | |
| 784 } | |
| 785 | |
| 786 vhci_failover_modopen(vhci); /* load failover modules */ | |
| 787 | |
| 788 ddi_report_dev(dip); | |
| 789 return (DDI_SUCCESS); | |
| 790 | |
| 791 attach_fail: | |
| 792 if (vhci_attached) | |
| 793 (void) mdi_vhci_unregister(dip, 0); | |
| 794 | |
| 795 if (scsi_hba_attached) | |
| 796 (void) scsi_hba_detach(dip); | |
| 797 | |
| 798 if (vhci->vhci_tran) | |
| 799 scsi_hba_tran_free(vhci->vhci_tran); | |
| 800 | |
| 801 if (mutex_initted) { | |
| 802 mutex_destroy(&vhci->vhci_mutex); | |
| 803 } | |
| 804 | |
| 805 ddi_soft_state_free(vhci_softstate, instance); | |
| 806 return (DDI_FAILURE); | |
| 807 } | |
| 808 | |
| 809 | |
| 810 /*ARGSUSED*/ | |
| 811 static int | |
| 812 vhci_detach(dev_info_t *dip, ddi_detach_cmd_t cmd) | |
| 813 { | |
| 814 int instance = ddi_get_instance(dip); | |
| 815 scsi_hba_tran_t *tran; | |
| 816 struct scsi_vhci *vhci; | |
| 817 | |
| 818 VHCI_DEBUG(4, (CE_NOTE, NULL, "vhci_detach: cmd=0x%x\n", cmd)); | |
| 819 | |
| 820 if ((tran = ddi_get_driver_private(dip)) == NULL) | |
| 821 return (DDI_FAILURE); | |
| 822 | |
| 823 vhci = TRAN2HBAPRIVATE(tran); | |
| 824 if (!vhci) { | |
| 825 return (DDI_FAILURE); | |
| 826 } | |
| 827 | |
| 828 switch (cmd) { | |
| 829 case DDI_DETACH: | |
| 830 break; | |
| 831 | |
| 832 case DDI_SUSPEND: | |
| 833 case DDI_PM_SUSPEND: | |
| 834 VHCI_DEBUG(1, (CE_NOTE, NULL, "!vhci_detach: suspend/pm not yet" | |
| 835 "implemented\n")); | |
| 836 return (DDI_FAILURE); | |
| 837 | |
| 838 default: | |
| 839 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
| 840 "!vhci_detach: unknown ddi command\n")); | |
| 841 return (DDI_FAILURE); | |
| 842 } | |
| 843 | |
| 844 (void) mdi_vhci_unregister(dip, 0); | |
| 845 (void) scsi_hba_detach(dip); | |
| 846 scsi_hba_tran_free(tran); | |
| 847 | |
| 848 if (ddi_prop_remove(DDI_DEV_T_NONE, dip, | |
| 849 "pm-want-child-notification?") != DDI_PROP_SUCCESS) { | |
| 850 cmn_err(CE_WARN, | |
| 851 "%s%d unable to remove prop pm-want_child_notification?", | |
| 852 ddi_driver_name(dip), ddi_get_instance(dip)); | |
| 853 } | |
| 854 if (vhci_restart_timeid != 0) { | |
| 855 (void) untimeout(vhci_restart_timeid); | |
| 856 } | |
| 857 vhci_restart_timeid = 0; | |
| 858 | |
| 859 mutex_destroy(&vhci->vhci_mutex); | |
| 860 vhci->vhci_dip = NULL; | |
| 861 vhci->vhci_tran = NULL; | |
| 862 taskq_destroy(vhci->vhci_taskq); | |
| 863 taskq_destroy(vhci->vhci_update_pathstates_taskq); | |
| 864 ddi_remove_minor_node(dip, NULL); | |
| 865 ddi_soft_state_free(vhci_softstate, instance); | |
| 866 | |
| 867 vhci_failover_modclose(); /* unload failover modules */ | |
| 868 return (DDI_SUCCESS); | |
| 869 } | |
| 870 | |
| 871 /* | |
| 872 * vhci_getinfo() | |
| 873 * Given the device number, return the devinfo pointer or the | |
| 874 * instance number. | |
| 875 * Note: always succeed DDI_INFO_DEVT2INSTANCE, even before attach. | |
| 876 */ | |
| 877 | |
| 878 /*ARGSUSED*/ | |
| 879 static int | |
| 880 vhci_getinfo(dev_info_t *dip, ddi_info_cmd_t cmd, void *arg, void **result) | |
| 881 { | |
| 882 struct scsi_vhci *vhcip; | |
| 883 int instance = MINOR2INST(getminor((dev_t)arg)); | |
| 884 | |
| 885 switch (cmd) { | |
| 886 case DDI_INFO_DEVT2DEVINFO: | |
| 887 vhcip = ddi_get_soft_state(vhci_softstate, instance); | |
| 888 if (vhcip != NULL) | |
| 889 *result = vhcip->vhci_dip; | |
| 890 else { | |
| 891 *result = NULL; | |
| 892 return (DDI_FAILURE); | |
| 893 } | |
| 894 break; | |
| 895 | |
| 896 case DDI_INFO_DEVT2INSTANCE: | |
| 897 *result = (void *)(uintptr_t)instance; | |
| 898 break; | |
| 899 | |
| 900 default: | |
| 901 return (DDI_FAILURE); | |
| 902 } | |
| 903 | |
| 904 return (DDI_SUCCESS); | |
| 905 } | |
| 906 | |
| 907 /*ARGSUSED*/ | |
| 908 static int | |
| 909 vhci_scsi_tgt_init(dev_info_t *hba_dip, dev_info_t *tgt_dip, | |
| 910 scsi_hba_tran_t *hba_tran, struct scsi_device *sd) | |
| 911 { | |
| 912 char *guid; | |
| 913 scsi_vhci_lun_t *vlun; | |
| 914 struct scsi_vhci *vhci; | |
| 915 clock_t from_ticks; | |
| 916 mdi_pathinfo_t *pip; | |
| 917 int rval; | |
| 918 | |
| 919 ASSERT(hba_dip != NULL); | |
| 920 ASSERT(tgt_dip != NULL); | |
| 921 | |
| 6777 | 922 if (ddi_prop_lookup_string(DDI_DEV_T_ANY, tgt_dip, PROPFLAGS, |
| 923 MDI_CLIENT_GUID_PROP, &guid) != DDI_SUCCESS) { | |
| 924 /* | |
| 925 * This must be the .conf node without GUID property. | |
| 926 * The node under fp already inserts a delay, so we | |
| 927 * just return from here. We rely on this delay to have | |
| 928 * all dips be posted to the ndi hotplug thread's newdev | |
| 929 * list. This is necessary for the deferred attach | |
| 930 * mechanism to work and opens() done soon after boot to | |
| 931 * succeed. | |
| 932 */ | |
| 933 VHCI_DEBUG(4, (CE_WARN, hba_dip, "tgt_init: lun guid " | |
| 934 "property failed")); | |
| 935 return (DDI_NOT_WELL_FORMED); | |
| 936 } | |
| 937 | |
| 938 if (ndi_dev_is_persistent_node(tgt_dip) == 0) { | |
| 939 /* | |
| 940 * This must be .conf node with the GUID property. We don't | |
| 941 * merge property by ndi_merge_node() here because the | |
| 942 * devi_addr_buf of .conf node is "" always according the | |
| 943 * implementation of vhci_scsi_get_name_bus_addr(). | |
| 944 */ | |
| 945 ddi_set_name_addr(tgt_dip, NULL); | |
| 946 return (DDI_FAILURE); | |
| 947 } | |
| 948 | |
| 4851 | 949 vhci = ddi_get_soft_state(vhci_softstate, ddi_get_instance(hba_dip)); |
| 950 ASSERT(vhci != NULL); | |
| 951 | |
| 952 VHCI_DEBUG(4, (CE_NOTE, hba_dip, | |
| 953 "!tgt_init: called for %s (instance %d)\n", | |
| 954 ddi_driver_name(tgt_dip), ddi_get_instance(tgt_dip))); | |
| 955 | |
| 956 vlun = vhci_lun_lookup(tgt_dip); | |
| 957 | |
| 958 mutex_enter(&vhci_global_mutex); | |
| 959 | |
| 960 from_ticks = ddi_get_lbolt(); | |
| 961 if (vhci_to_ticks == 0) { | |
| 962 vhci_to_ticks = from_ticks + | |
| 963 drv_usectohz(vhci_init_wait_timeout); | |
| 964 } | |
| 965 | |
| 966 #if DEBUG | |
| 967 if (vlun) { | |
| 968 VHCI_DEBUG(1, (CE_WARN, hba_dip, "tgt_init: " | |
| 969 "vhci_scsi_tgt_init: guid %s : found vlun 0x%p " | |
| 970 "from_ticks %lx to_ticks %lx", | |
| 971 guid, (void *)vlun, from_ticks, vhci_to_ticks)); | |
| 972 } else { | |
| 973 VHCI_DEBUG(1, (CE_WARN, hba_dip, "tgt_init: " | |
| 974 "vhci_scsi_tgt_init: guid %s : vlun not found " | |
| 975 "from_ticks %lx to_ticks %lx", guid, from_ticks, | |
| 976 vhci_to_ticks)); | |
| 977 } | |
| 978 #endif | |
| 979 | |
| 980 rval = mdi_select_path(tgt_dip, NULL, | |
| 981 (MDI_SELECT_ONLINE_PATH | MDI_SELECT_STANDBY_PATH), NULL, &pip); | |
| 982 if (rval == MDI_SUCCESS) { | |
| 983 mdi_rele_path(pip); | |
| 984 } | |
| 985 | |
| 986 /* | |
| 987 * Wait for the following conditions : | |
| 988 * 1. no vlun available yet | |
| 989 * 2. no path established | |
| 990 * 3. timer did not expire | |
| 991 */ | |
| 992 while ((vlun == NULL) || (mdi_client_get_path_count(tgt_dip) == 0) || | |
| 993 (rval != MDI_SUCCESS)) { | |
| 994 if (vlun && vlun->svl_not_supported) { | |
| 995 VHCI_DEBUG(1, (CE_WARN, hba_dip, "tgt_init: " | |
| 996 "vlun 0x%p lun guid %s not supported!", | |
| 997 (void *)vlun, guid)); | |
| 998 mutex_exit(&vhci_global_mutex); | |
| 999 ddi_prop_free(guid); | |
| 1000 return (DDI_NOT_WELL_FORMED); | |
| 1001 } | |
| 1002 if ((vhci_first_time == 0) && (from_ticks >= vhci_to_ticks)) { | |
| 1003 vhci_first_time = 1; | |
| 1004 } | |
| 1005 if (vhci_first_time == 1) { | |
| 1006 VHCI_DEBUG(1, (CE_WARN, hba_dip, "vhci_scsi_tgt_init: " | |
| 1007 "no wait for %s. from_tick %lx, to_tick %lx", | |
| 1008 guid, from_ticks, vhci_to_ticks)); | |
| 1009 mutex_exit(&vhci_global_mutex); | |
| 1010 ddi_prop_free(guid); | |
| 1011 return (DDI_NOT_WELL_FORMED); | |
| 1012 } | |
| 1013 | |
| 1014 if (cv_timedwait(&vhci_cv, | |
| 1015 &vhci_global_mutex, vhci_to_ticks) == -1) { | |
| 1016 /* Timed out */ | |
| 1017 #ifdef DEBUG | |
| 1018 if (vlun == NULL) { | |
| 1019 VHCI_DEBUG(1, (CE_WARN, hba_dip, | |
| 1020 "tgt_init: no vlun for %s!", guid)); | |
| 1021 } else if (mdi_client_get_path_count(tgt_dip) == 0) { | |
| 1022 VHCI_DEBUG(1, (CE_WARN, hba_dip, | |
| 1023 "tgt_init: client path count is " | |
| 1024 "zero for %s!", guid)); | |
| 1025 } else { | |
| 1026 VHCI_DEBUG(1, (CE_WARN, hba_dip, | |
| 1027 "tgt_init: client path not " | |
| 1028 "available yet for %s!", guid)); | |
| 1029 } | |
| 1030 #endif /* DEBUG */ | |
| 1031 mutex_exit(&vhci_global_mutex); | |
| 1032 ddi_prop_free(guid); | |
| 1033 return (DDI_NOT_WELL_FORMED); | |
| 1034 } | |
| 1035 vlun = vhci_lun_lookup(tgt_dip); | |
| 1036 rval = mdi_select_path(tgt_dip, NULL, | |
| 1037 (MDI_SELECT_ONLINE_PATH | MDI_SELECT_STANDBY_PATH), | |
| 1038 NULL, &pip); | |
| 1039 if (rval == MDI_SUCCESS) { | |
| 1040 mdi_rele_path(pip); | |
| 1041 } | |
| 1042 from_ticks = ddi_get_lbolt(); | |
| 1043 } | |
| 1044 mutex_exit(&vhci_global_mutex); | |
| 1045 | |
| 1046 ASSERT(vlun != NULL); | |
| 1047 ddi_prop_free(guid); | |
|
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|
1048 |
|
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parents:
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diff
changeset
|
1049 scsi_device_hba_private_set(sd, vlun); |
| 4851 | 1050 |
| 1051 return (DDI_SUCCESS); | |
| 1052 } | |
| 1053 | |
| 1054 /*ARGSUSED*/ | |
| 1055 static void | |
| 1056 vhci_scsi_tgt_free(dev_info_t *hba_dip, dev_info_t *tgt_dip, | |
| 1057 scsi_hba_tran_t *hba_tran, struct scsi_device *sd) | |
| 1058 { | |
| 1059 } | |
| 1060 | |
| 1061 /* | |
| 1062 * a PGR register command has started; copy the info we need | |
| 1063 */ | |
| 1064 int | |
| 1065 vhci_pgr_register_start(scsi_vhci_lun_t *vlun, struct scsi_pkt *pkt) | |
| 1066 { | |
| 1067 struct vhci_pkt *vpkt = TGTPKT2VHCIPKT(pkt); | |
| 1068 void *addr; | |
| 1069 | |
| 1070 if (!vpkt->vpkt_tgt_init_bp) | |
| 1071 return (TRAN_BADPKT); | |
| 1072 | |
| 1073 addr = bp_mapin_common(vpkt->vpkt_tgt_init_bp, | |
| 1074 (vpkt->vpkt_flags & CFLAG_NOWAIT) ? VM_NOSLEEP : VM_SLEEP); | |
| 1075 if (addr == NULL) | |
| 1076 return (TRAN_BUSY); | |
| 1077 | |
| 1078 mutex_enter(&vlun->svl_mutex); | |
| 1079 | |
| 1080 vhci_print_prout_keys(vlun, "v_pgr_reg_start: before bcopy:"); | |
| 1081 | |
| 1082 bcopy(addr, &vlun->svl_prout, sizeof (vhci_prout_t) - | |
| 1083 (2 * MHIOC_RESV_KEY_SIZE*sizeof (char))); | |
| 1084 bcopy(pkt->pkt_cdbp, vlun->svl_cdb, sizeof (vlun->svl_cdb)); | |
| 1085 | |
| 1086 vhci_print_prout_keys(vlun, "v_pgr_reg_start: after bcopy:"); | |
| 1087 | |
| 1088 vlun->svl_time = pkt->pkt_time; | |
| 1089 vlun->svl_bcount = vpkt->vpkt_tgt_init_bp->b_bcount; | |
| 1090 vlun->svl_first_path = vpkt->vpkt_path; | |
| 1091 mutex_exit(&vlun->svl_mutex); | |
| 1092 return (0); | |
| 1093 } | |
| 1094 | |
| 1095 /* | |
| 1096 * Function name : vhci_scsi_start() | |
| 1097 * | |
| 1098 * Return Values : TRAN_FATAL_ERROR - vhci has been shutdown | |
| 1099 * or other fatal failure | |
| 1100 * preventing packet transportation | |
| 1101 * TRAN_BUSY - request queue is full | |
| 1102 * TRAN_ACCEPT - pkt has been submitted to phci | |
| 1103 * (or is held in the waitQ) | |
| 1104 * Description : Implements SCSA's tran_start() entry point for | |
| 1105 * packet transport | |
| 1106 * | |
| 1107 */ | |
| 1108 static int | |
| 1109 vhci_scsi_start(struct scsi_address *ap, struct scsi_pkt *pkt) | |
| 1110 { | |
| 1111 int rval = TRAN_ACCEPT; | |
| 1112 int instance, held; | |
| 1113 struct scsi_vhci *vhci = ADDR2VHCI(ap); | |
| 1114 struct scsi_vhci_lun *vlun = ADDR2VLUN(ap); | |
| 1115 struct vhci_pkt *vpkt = TGTPKT2VHCIPKT(pkt); | |
| 1116 int flags = 0; | |
| 1117 scsi_vhci_priv_t *svp; | |
| 1118 dev_info_t *cdip; | |
| 1119 client_lb_t lbp; | |
| 1120 int restore_lbp = 0; | |
| 1121 /* set if pkt is SCSI-II RESERVE cmd */ | |
| 1122 int pkt_reserve_cmd = 0; | |
| 1123 int reserve_failed = 0; | |
| 1124 | |
| 1125 ASSERT(vhci != NULL); | |
| 1126 ASSERT(vpkt != NULL); | |
| 1127 ASSERT(vpkt->vpkt_state != VHCI_PKT_ISSUED); | |
| 1128 cdip = ADDR2DIP(ap); | |
| 1129 | |
| 1130 /* | |
| 1131 * Block IOs if LUN is held or QUIESCED for IOs. | |
| 1132 */ | |
| 1133 if ((VHCI_LUN_IS_HELD(vlun)) || | |
| 1134 ((vlun->svl_flags & VLUN_QUIESCED_FLG) == VLUN_QUIESCED_FLG)) { | |
| 1135 return (TRAN_BUSY); | |
| 1136 } | |
| 1137 | |
| 1138 /* | |
| 1139 * vhci_lun needs to be quiesced before SCSI-II RESERVE command | |
| 1140 * can be issued. This may require a cv_timedwait, which is | |
| 1141 * dangerous to perform in an interrupt context. So if this | |
| 1142 * is a RESERVE command a taskq is dispatched to service it. | |
| 1143 * This taskq shall again call vhci_scsi_start, but we shall be | |
| 1144 * sure its not in an interrupt context. | |
| 1145 */ | |
| 1146 if ((pkt->pkt_cdbp[0] == SCMD_RESERVE) || | |
| 1147 (pkt->pkt_cdbp[0] == SCMD_RESERVE_G1)) { | |
| 1148 if (!(vpkt->vpkt_state & VHCI_PKT_THRU_TASKQ)) { | |
| 1149 if (taskq_dispatch(vhci->vhci_taskq, | |
| 1150 vhci_dispatch_scsi_start, (void *) vpkt, | |
| 1151 KM_NOSLEEP)) { | |
| 1152 return (TRAN_ACCEPT); | |
| 1153 } else { | |
| 1154 return (TRAN_BUSY); | |
| 1155 } | |
| 1156 } | |
| 1157 | |
| 1158 /* | |
| 1159 * Here we ensure that simultaneous SCSI-II RESERVE cmds don't | |
| 1160 * get serviced for a lun. | |
| 1161 */ | |
| 1162 VHCI_HOLD_LUN(vlun, VH_NOSLEEP, held); | |
| 1163 if (!held) { | |
| 1164 return (TRAN_BUSY); | |
| 1165 } else if ((vlun->svl_flags & VLUN_QUIESCED_FLG) == | |
| 1166 VLUN_QUIESCED_FLG) { | |
| 1167 VHCI_RELEASE_LUN(vlun); | |
| 1168 return (TRAN_BUSY); | |
| 1169 } | |
| 1170 | |
| 1171 /* | |
| 1172 * To ensure that no IOs occur for this LUN for the duration | |
| 1173 * of this pkt set the VLUN_QUIESCED_FLG. | |
| 1174 * In case this routine needs to exit on error make sure that | |
| 1175 * this flag is cleared. | |
| 1176 */ | |
| 1177 vlun->svl_flags |= VLUN_QUIESCED_FLG; | |
| 1178 pkt_reserve_cmd = 1; | |
| 1179 | |
| 1180 /* | |
| 1181 * if this is a SCSI-II RESERVE command, set load balancing | |
| 1182 * policy to be ALTERNATE PATH to ensure that all subsequent | |
| 1183 * IOs are routed on the same path. This is because if commands | |
| 1184 * are routed across multiple paths then IOs on paths other than | |
| 1185 * the one on which the RESERVE was executed will get a | |
| 1186 * RESERVATION CONFLICT | |
| 1187 */ | |
| 1188 lbp = mdi_get_lb_policy(cdip); | |
| 1189 if (lbp != LOAD_BALANCE_NONE) { | |
| 1190 if (vhci_quiesce_lun(vlun) != 1) { | |
| 1191 vlun->svl_flags &= ~VLUN_QUIESCED_FLG; | |
| 1192 VHCI_RELEASE_LUN(vlun); | |
| 1193 return (TRAN_FATAL_ERROR); | |
| 1194 } | |
| 1195 vlun->svl_lb_policy_save = lbp; | |
| 1196 if (mdi_set_lb_policy(cdip, LOAD_BALANCE_NONE) != | |
| 1197 MDI_SUCCESS) { | |
| 1198 vlun->svl_flags &= ~VLUN_QUIESCED_FLG; | |
| 1199 VHCI_RELEASE_LUN(vlun); | |
| 1200 return (TRAN_FATAL_ERROR); | |
| 1201 } | |
| 1202 restore_lbp = 1; | |
| 1203 } | |
| 1204 /* | |
| 1205 * See comments for VLUN_RESERVE_ACTIVE_FLG in scsi_vhci.h | |
| 1206 * To narrow this window where a reserve command may be sent | |
| 1207 * down an inactive path the path states first need to be | |
| 1208 * updated. Before calling vhci_update_pathstates reset | |
| 1209 * VLUN_RESERVE_ACTIVE_FLG, just in case it was already set | |
| 1210 * for this lun. This shall prevent an unnecessary reset | |
| 1211 * from being sent out. | |
| 1212 */ | |
| 1213 vlun->svl_flags &= ~VLUN_RESERVE_ACTIVE_FLG; | |
| 1214 vhci_update_pathstates((void *)vlun); | |
| 1215 } | |
| 1216 | |
| 1217 instance = ddi_get_instance(vhci->vhci_dip); | |
| 1218 | |
| 1219 /* | |
| 1220 * If the command is PRIN with action of zero, then the cmd | |
| 1221 * is reading PR keys which requires filtering on completion. | |
| 1222 * Data cache sync must be guaranteed. | |
| 1223 */ | |
|
6941
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rralphs
parents:
6777
diff
changeset
|
1224 if ((pkt->pkt_cdbp[0] == SCMD_PRIN) && (pkt->pkt_cdbp[1] == 0) && |
| 4851 | 1225 (vpkt->vpkt_org_vpkt == NULL)) { |
| 1226 vpkt->vpkt_tgt_init_pkt_flags |= PKT_CONSISTENT; | |
| 1227 } | |
| 1228 | |
| 1229 /* | |
| 1230 * Do not defer bind for PKT_DMA_PARTIAL | |
| 1231 */ | |
| 1232 if ((vpkt->vpkt_flags & CFLAG_DMA_PARTIAL) == 0) { | |
| 1233 | |
| 1234 /* This is a non pkt_dma_partial case */ | |
| 1235 if ((rval = vhci_bind_transport( | |
| 1236 ap, vpkt, vpkt->vpkt_tgt_init_pkt_flags, NULL_FUNC)) | |
| 1237 != TRAN_ACCEPT) { | |
| 1238 VHCI_DEBUG(6, (CE_WARN, vhci->vhci_dip, | |
| 1239 "!vhci%d %x: failed to bind transport: " | |
| 1240 "vlun 0x%p pkt_reserved %x restore_lbp %x," | |
| 1241 "lbp %x", instance, rval, (void *)vlun, | |
| 1242 pkt_reserve_cmd, restore_lbp, lbp)); | |
| 1243 if (restore_lbp) | |
| 1244 (void) mdi_set_lb_policy(cdip, lbp); | |
| 1245 if (pkt_reserve_cmd) | |
| 1246 vlun->svl_flags &= ~VLUN_QUIESCED_FLG; | |
| 1247 return (rval); | |
| 1248 } | |
| 1249 VHCI_DEBUG(8, (CE_NOTE, NULL, | |
| 1250 "vhci_scsi_start: v_b_t called 0x%p\n", (void *)vpkt)); | |
| 1251 } | |
| 1252 ASSERT(vpkt->vpkt_hba_pkt != NULL); | |
| 1253 ASSERT(vpkt->vpkt_path != NULL); | |
| 1254 | |
| 1255 /* | |
| 1256 * This is the chance to adjust the pHCI's pkt and other information | |
| 1257 * from target driver's pkt. | |
| 1258 */ | |
| 1259 VHCI_DEBUG(8, (CE_NOTE, vhci->vhci_dip, "vhci_scsi_start vpkt %p\n", | |
| 1260 (void *)vpkt)); | |
| 1261 vhci_update_pHCI_pkt(vpkt, pkt); | |
| 1262 | |
| 1263 if (vlun->svl_flags & VLUN_RESERVE_ACTIVE_FLG) { | |
| 1264 if (vpkt->vpkt_path != vlun->svl_resrv_pip) { | |
| 1265 VHCI_DEBUG(1, (CE_WARN, vhci->vhci_dip, | |
| 1266 "!vhci_bind: reserve flag set for vlun 0x%p, but, " | |
| 1267 "pktpath 0x%p resrv path 0x%p differ. lb_policy %x", | |
| 1268 (void *)vlun, (void *)vpkt->vpkt_path, | |
| 1269 (void *)vlun->svl_resrv_pip, | |
| 1270 mdi_get_lb_policy(cdip))); | |
| 1271 reserve_failed = 1; | |
| 1272 } | |
| 1273 } | |
| 1274 | |
|
6941
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rralphs
parents:
6777
diff
changeset
|
1275 svp = (scsi_vhci_priv_t *)mdi_pi_get_vhci_private(vpkt->vpkt_path); |
| 4851 | 1276 if (svp == NULL || reserve_failed) { |
| 1277 if (pkt_reserve_cmd) { | |
| 1278 VHCI_DEBUG(6, (CE_WARN, vhci->vhci_dip, | |
| 1279 "!vhci_bind returned null svp vlun 0x%p", | |
| 1280 (void *)vlun)); | |
| 1281 vlun->svl_flags &= ~VLUN_QUIESCED_FLG; | |
| 1282 if (restore_lbp) | |
| 1283 (void) mdi_set_lb_policy(cdip, lbp); | |
| 1284 } | |
| 1285 pkt_cleanup: | |
| 1286 if ((vpkt->vpkt_flags & CFLAG_DMA_PARTIAL) == 0) { | |
| 1287 scsi_destroy_pkt(vpkt->vpkt_hba_pkt); | |
| 1288 vpkt->vpkt_hba_pkt = NULL; | |
| 1289 if (vpkt->vpkt_path) { | |
| 1290 mdi_rele_path(vpkt->vpkt_path); | |
| 1291 vpkt->vpkt_path = NULL; | |
| 1292 } | |
| 1293 } | |
| 1294 if ((pkt->pkt_cdbp[0] == SCMD_PROUT) && | |
| 1295 (((pkt->pkt_cdbp[1] & 0x1f) == VHCI_PROUT_REGISTER) || | |
|
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diff
changeset
|
1296 ((pkt->pkt_cdbp[1] & 0x1f) == VHCI_PROUT_R_AND_IGNORE))) { |
| 4851 | 1297 sema_v(&vlun->svl_pgr_sema); |
| 1298 } | |
| 1299 return (TRAN_BUSY); | |
| 1300 } | |
| 1301 | |
| 1302 VHCI_INCR_PATH_CMDCOUNT(svp); | |
| 1303 | |
| 1304 /* | |
| 1305 * Ensure that no other IOs raced ahead, while a RESERVE cmd was | |
| 1306 * QUIESCING the same lun. | |
| 1307 */ | |
| 1308 if ((!pkt_reserve_cmd) && | |
| 1309 ((vlun->svl_flags & VLUN_QUIESCED_FLG) == VLUN_QUIESCED_FLG)) { | |
| 1310 VHCI_DECR_PATH_CMDCOUNT(svp); | |
| 1311 goto pkt_cleanup; | |
| 1312 } | |
| 1313 | |
| 1314 if ((pkt->pkt_cdbp[0] == SCMD_PRIN) || | |
| 1315 (pkt->pkt_cdbp[0] == SCMD_PROUT)) { | |
| 1316 /* | |
| 1317 * currently this thread only handles running PGR | |
| 1318 * commands, so don't bother creating it unless | |
| 1319 * something interesting is going to happen (like | |
| 1320 * either a PGR out, or a PGR in with enough space | |
| 1321 * to hold the keys that are getting returned) | |
| 1322 */ | |
| 1323 mutex_enter(&vlun->svl_mutex); | |
| 1324 if (((vlun->svl_flags & VLUN_TASK_D_ALIVE_FLG) == 0) && | |
| 1325 (pkt->pkt_cdbp[0] == SCMD_PROUT)) { | |
| 1326 vlun->svl_taskq = taskq_create("vlun_pgr_task_daemon", | |
| 1327 1, MINCLSYSPRI, 1, 4, 0); | |
| 1328 vlun->svl_flags |= VLUN_TASK_D_ALIVE_FLG; | |
| 1329 } | |
| 1330 mutex_exit(&vlun->svl_mutex); | |
| 1331 if ((pkt->pkt_cdbp[0] == SCMD_PROUT) && | |
| 1332 (((pkt->pkt_cdbp[1] & 0x1f) == VHCI_PROUT_REGISTER) || | |
|
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1333 ((pkt->pkt_cdbp[1] & 0x1f) == VHCI_PROUT_R_AND_IGNORE))) { |
| 4851 | 1334 if (rval = vhci_pgr_register_start(vlun, pkt)) { |
| 1335 /* an error */ | |
| 1336 sema_v(&vlun->svl_pgr_sema); | |
| 1337 return (rval); | |
| 1338 } | |
| 1339 } | |
| 1340 } | |
| 1341 | |
| 1342 /* | |
| 1343 * SCSI-II RESERVE cmd is not expected in polled mode. | |
| 1344 * If this changes it needs to be handled for the polled scenario. | |
| 1345 */ | |
| 1346 flags = vpkt->vpkt_hba_pkt->pkt_flags; | |
|
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1347 |
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1348 /* |
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1349 * Set the path_instance *before* sending the scsi_pkt down the path |
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1350 * to mpxio's pHCI so that additional path abstractions at a pHCI |
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1351 * level (like maybe iSCSI at some point in the future) can update |
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1352 * the path_instance. |
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1353 */ |
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1354 if (scsi_pkt_allocated_correctly(vpkt->vpkt_hba_pkt)) |
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1355 vpkt->vpkt_hba_pkt->pkt_path_instance = |
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1356 mdi_pi_get_path_instance(vpkt->vpkt_path); |
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1357 |
| 4851 | 1358 rval = scsi_transport(vpkt->vpkt_hba_pkt); |
| 1359 if (rval == TRAN_ACCEPT) { | |
| 1360 if (flags & FLAG_NOINTR) { | |
| 1361 struct scsi_pkt *tpkt = vpkt->vpkt_tgt_pkt; | |
| 1362 struct scsi_pkt *pkt = vpkt->vpkt_hba_pkt; | |
| 1363 | |
| 1364 ASSERT(tpkt != NULL); | |
| 1365 *(tpkt->pkt_scbp) = *(pkt->pkt_scbp); | |
| 1366 tpkt->pkt_resid = pkt->pkt_resid; | |
| 1367 tpkt->pkt_state = pkt->pkt_state; | |
| 1368 tpkt->pkt_statistics = pkt->pkt_statistics; | |
| 1369 tpkt->pkt_reason = pkt->pkt_reason; | |
| 1370 | |
| 1371 if ((*(pkt->pkt_scbp) == STATUS_CHECK) && | |
| 1372 (pkt->pkt_state & STATE_ARQ_DONE)) { | |
| 1373 bcopy(pkt->pkt_scbp, tpkt->pkt_scbp, | |
| 1374 vpkt->vpkt_tgt_init_scblen); | |
| 1375 } | |
| 1376 | |
| 1377 VHCI_DECR_PATH_CMDCOUNT(svp); | |
| 1378 if ((vpkt->vpkt_flags & CFLAG_DMA_PARTIAL) == 0) { | |
| 1379 scsi_destroy_pkt(vpkt->vpkt_hba_pkt); | |
| 1380 vpkt->vpkt_hba_pkt = NULL; | |
| 1381 if (vpkt->vpkt_path) { | |
| 1382 mdi_rele_path(vpkt->vpkt_path); | |
| 1383 vpkt->vpkt_path = NULL; | |
| 1384 } | |
| 1385 } | |
| 1386 /* | |
| 1387 * This path will not automatically retry pkts | |
| 1388 * internally, therefore, vpkt_org_vpkt should | |
| 1389 * never be set. | |
| 1390 */ | |
| 1391 ASSERT(vpkt->vpkt_org_vpkt == NULL); | |
| 1392 if (tpkt->pkt_comp) { | |
|
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1393 tpkt->pkt_comp(tpkt); |
| 4851 | 1394 } |
| 1395 } | |
| 1396 return (rval); | |
| 1397 } else if ((pkt->pkt_cdbp[0] == SCMD_PROUT) && | |
| 1398 (((pkt->pkt_cdbp[1] & 0x1f) == VHCI_PROUT_REGISTER) || | |
| 1399 ((pkt->pkt_cdbp[1] & 0x1f) == VHCI_PROUT_R_AND_IGNORE))) { | |
| 1400 /* the command exited with bad status */ | |
| 1401 sema_v(&vlun->svl_pgr_sema); | |
| 1402 } else if (vpkt->vpkt_tgt_pkt->pkt_cdbp[0] == SCMD_PRIN) { | |
| 1403 /* the command exited with bad status */ | |
| 1404 sema_v(&vlun->svl_pgr_sema); | |
| 1405 } else if (pkt_reserve_cmd) { | |
| 1406 VHCI_DEBUG(6, (CE_WARN, vhci->vhci_dip, | |
| 1407 "!vhci_scsi_start: reserve failed vlun 0x%p", | |
| 1408 (void *)vlun)); | |
| 1409 vlun->svl_flags &= ~VLUN_QUIESCED_FLG; | |
| 1410 if (restore_lbp) | |
| 1411 (void) mdi_set_lb_policy(cdip, lbp); | |
| 1412 } | |
| 1413 | |
| 1414 ASSERT(vpkt->vpkt_hba_pkt != NULL); | |
| 1415 VHCI_DECR_PATH_CMDCOUNT(svp); | |
| 1416 | |
| 1417 /* Do not destroy phci packet information for PKT_DMA_PARTIAL */ | |
| 1418 if ((vpkt->vpkt_flags & CFLAG_DMA_PARTIAL) == 0) { | |
| 1419 scsi_destroy_pkt(vpkt->vpkt_hba_pkt); | |
| 1420 vpkt->vpkt_hba_pkt = NULL; | |
| 1421 if (vpkt->vpkt_path) { | |
| 1422 MDI_PI_ERRSTAT(vpkt->vpkt_path, MDI_PI_TRANSERR); | |
| 1423 mdi_rele_path(vpkt->vpkt_path); | |
| 1424 vpkt->vpkt_path = NULL; | |
| 1425 } | |
| 1426 } | |
| 1427 return (TRAN_BUSY); | |
| 1428 } | |
| 1429 | |
| 1430 /* | |
| 1431 * Function name : vhci_scsi_reset() | |
| 1432 * | |
| 1433 * Return Values : 0 - reset failed | |
| 1434 * 1 - reset succeeded | |
| 1435 */ | |
| 1436 | |
| 1437 /* ARGSUSED */ | |
| 1438 static int | |
| 1439 vhci_scsi_reset(struct scsi_address *ap, int level) | |
| 1440 { | |
| 1441 int rval = 0; | |
| 1442 | |
| 1443 cmn_err(CE_WARN, "!vhci_scsi_reset 0x%x", level); | |
| 1444 if ((level == RESET_TARGET) || (level == RESET_LUN)) { | |
| 1445 return (vhci_scsi_reset_target(ap, level, TRUE)); | |
| 1446 } else if (level == RESET_ALL) { | |
| 1447 return (vhci_scsi_reset_bus(ap)); | |
| 1448 } | |
| 1449 | |
| 1450 return (rval); | |
| 1451 } | |
| 1452 | |
| 1453 /* | |
| 1454 * vhci_recovery_reset: | |
| 1455 * Issues reset to the device | |
| 1456 * Input: | |
| 1457 * vlun - vhci lun pointer of the device | |
| 1458 * ap - address of the device | |
| 1459 * select_path: | |
| 1460 * If select_path is FALSE, then the address specified in ap is | |
| 1461 * the path on which reset will be issued. | |
| 1462 * If select_path is TRUE, then path is obtained by calling | |
| 1463 * mdi_select_path. | |
| 1464 * | |
| 1465 * recovery_depth: | |
| 1466 * Caller can specify the level of reset. | |
| 1467 * VHCI_DEPTH_LUN - | |
| 1468 * Issues LUN RESET if device supports lun reset. | |
| 1469 * VHCI_DEPTH_TARGET - | |
| 1470 * If Lun Reset fails or the device does not support | |
| 1471 * Lun Reset, issues TARGET RESET | |
| 1472 * VHCI_DEPTH_ALL - | |
| 1473 * If Lun Reset fails or the device does not support | |
| 1474 * Lun Reset, issues TARGET RESET. | |
| 1475 * If TARGET RESET does not succeed, issues Bus Reset. | |
| 1476 */ | |
| 1477 | |
| 1478 static int | |
| 1479 vhci_recovery_reset(scsi_vhci_lun_t *vlun, struct scsi_address *ap, | |
| 1480 uint8_t select_path, uint8_t recovery_depth) | |
| 1481 { | |
| 1482 int ret = 0; | |
| 1483 | |
| 1484 ASSERT(ap != NULL); | |
| 1485 | |
| 1486 if (vlun && vlun->svl_support_lun_reset == 1) { | |
| 1487 ret = vhci_scsi_reset_target(ap, RESET_LUN, | |
| 1488 select_path); | |
| 1489 } | |
| 1490 | |
| 1491 recovery_depth--; | |
| 1492 | |
| 1493 if ((ret == 0) && recovery_depth) { | |
| 1494 ret = vhci_scsi_reset_target(ap, RESET_TARGET, | |
| 1495 select_path); | |
| 1496 recovery_depth--; | |
| 1497 } | |
| 1498 | |
| 1499 if ((ret == 0) && recovery_depth) { | |
| 1500 (void) scsi_reset(ap, RESET_ALL); | |
| 1501 } | |
| 1502 | |
| 1503 return (ret); | |
| 1504 } | |
| 1505 | |
| 1506 /* | |
| 1507 * Note: The scsi_address passed to this routine could be the scsi_address | |
| 1508 * for the virtual device or the physical device. No assumptions should be | |
|
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1509 * made in this routine about the contents of the ap structure. |
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1510 * Further, note that the child dip would be the dip of the ssd node regardless |
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1511 * of the scsi_address passed in. |
| 4851 | 1512 */ |
| 1513 static int | |
| 1514 vhci_scsi_reset_target(struct scsi_address *ap, int level, uint8_t select_path) | |
| 1515 { | |
| 1516 dev_info_t *vdip, *pdip, *cdip = ADDR2DIP(ap); | |
| 1517 mdi_pathinfo_t *pip = NULL; | |
| 1518 mdi_pathinfo_t *npip = NULL; | |
| 1519 int rval = -1; | |
| 1520 scsi_vhci_priv_t *svp = NULL; | |
| 1521 struct scsi_address *pap = NULL; | |
| 1522 scsi_hba_tran_t *hba = NULL; | |
| 1523 int sps; | |
| 1524 struct scsi_vhci *vhci = NULL; | |
| 1525 | |
| 1526 if (select_path != TRUE) { | |
| 1527 ASSERT(ap != NULL); | |
| 1528 if (level == RESET_LUN) { | |
| 1529 hba = ap->a_hba_tran; | |
| 1530 ASSERT(hba != NULL); | |
|
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1531 return (hba->tran_reset(ap, RESET_LUN)); |
| 4851 | 1532 } |
| 1533 return (scsi_reset(ap, level)); | |
| 1534 } | |
| 1535 | |
| 1536 ASSERT(cdip != NULL); | |
| 1537 vdip = ddi_get_parent(cdip); | |
| 1538 ASSERT(vdip != NULL); | |
| 1539 vhci = ddi_get_soft_state(vhci_softstate, ddi_get_instance(vdip)); | |
| 1540 ASSERT(vhci != NULL); | |
| 1541 | |
| 1542 rval = mdi_select_path(cdip, NULL, MDI_SELECT_ONLINE_PATH, NULL, &pip); | |
| 1543 if ((rval != MDI_SUCCESS) || (pip == NULL)) { | |
| 1544 VHCI_DEBUG(2, (CE_WARN, NULL, "!vhci_scsi_reset_target: " | |
| 1545 "Unable to get a path, dip 0x%p", (void *)cdip)); | |
| 1546 return (0); | |
| 1547 } | |
| 1548 again: | |
| 1549 svp = (scsi_vhci_priv_t *)mdi_pi_get_vhci_private(pip); | |
| 1550 if (svp == NULL) { | |
| 1551 VHCI_DEBUG(2, (CE_WARN, NULL, "!vhci_scsi_reset_target: " | |
| 1552 "priv is NULL, pip 0x%p", (void *)pip)); | |
| 1553 mdi_rele_path(pip); | |
| 1554 return (0); | |
| 1555 } | |
| 1556 | |
| 1557 if (svp->svp_psd == NULL) { | |
| 1558 VHCI_DEBUG(2, (CE_WARN, NULL, "!vhci_scsi_reset_target: " | |
| 1559 "psd is NULL, pip 0x%p, svp 0x%p", | |
| 1560 (void *)pip, (void *)svp)); | |
| 1561 mdi_rele_path(pip); | |
| 1562 return (0); | |
| 1563 } | |
| 1564 | |
| 1565 pap = &svp->svp_psd->sd_address; | |
| 1566 hba = pap->a_hba_tran; | |
| 1567 | |
| 1568 ASSERT(pap != NULL); | |
| 1569 ASSERT(hba != NULL); | |
| 1570 | |
| 1571 if (hba->tran_reset != NULL) { | |
|
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1572 if (hba->tran_reset(pap, level) == 0) { |
| 4851 | 1573 pdip = mdi_pi_get_phci(pip); |
| 1574 vhci_log(CE_WARN, vdip, "!(%s%d):" | |
| 1575 " path (%s%d), reset %d failed", | |
| 1576 ddi_driver_name(cdip), ddi_get_instance(cdip), | |
| 1577 ddi_driver_name(pdip), ddi_get_instance(pdip), | |
| 1578 level); | |
| 1579 | |
| 1580 /* | |
| 1581 * Select next path and issue the reset, repeat | |
| 1582 * until all paths are exhausted | |
| 1583 */ | |
| 1584 sps = mdi_select_path(cdip, NULL, | |
| 1585 MDI_SELECT_ONLINE_PATH, pip, &npip); | |
| 1586 if ((sps != MDI_SUCCESS) || (npip == NULL)) { | |
| 1587 mdi_rele_path(pip); | |
| 1588 return (0); | |
| 1589 } | |
| 1590 mdi_rele_path(pip); | |
| 1591 pip = npip; | |
| 1592 goto again; | |
| 1593 } | |
| 1594 mdi_rele_path(pip); | |
| 1595 mutex_enter(&vhci->vhci_mutex); | |
| 1596 scsi_hba_reset_notify_callback(&vhci->vhci_mutex, | |
| 1597 &vhci->vhci_reset_notify_listf); | |
| 1598 mutex_exit(&vhci->vhci_mutex); | |
| 1599 VHCI_DEBUG(6, (CE_NOTE, NULL, "!vhci_scsi_reset_target: " | |
| 1600 "reset %d sent down pip:%p for cdip:%p\n", level, | |
| 1601 (void *)pip, (void *)cdip)); | |
| 1602 return (1); | |
| 1603 } | |
| 1604 mdi_rele_path(pip); | |
| 1605 return (0); | |
| 1606 } | |
| 1607 | |
| 1608 | |
| 1609 /* ARGSUSED */ | |
| 1610 static int | |
| 1611 vhci_scsi_reset_bus(struct scsi_address *ap) | |
| 1612 { | |
| 1613 return (1); | |
| 1614 } | |
| 1615 | |
| 1616 | |
| 1617 /* | |
| 1618 * called by vhci_getcap and vhci_setcap to get and set (respectively) | |
| 1619 * SCSI capabilities | |
| 1620 */ | |
| 1621 /* ARGSUSED */ | |
| 1622 static int | |
| 1623 vhci_commoncap(struct scsi_address *ap, char *cap, | |
| 1624 int val, int tgtonly, int doset) | |
| 1625 { | |
| 1626 struct scsi_vhci *vhci = ADDR2VHCI(ap); | |
| 1627 struct scsi_vhci_lun *vlun = ADDR2VLUN(ap); | |
| 1628 int cidx; | |
| 1629 int rval = 0; | |
| 1630 | |
| 1631 if (cap == (char *)0) { | |
| 1632 VHCI_DEBUG(3, (CE_WARN, vhci->vhci_dip, | |
| 1633 "!vhci_commoncap: invalid arg")); | |
| 1634 return (rval); | |
| 1635 } | |
| 1636 | |
|
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1637 if (vlun == NULL) { |
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1638 VHCI_DEBUG(3, (CE_WARN, vhci->vhci_dip, |
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1639 "!vhci_commoncap: vlun is null")); |
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1640 return (rval); |
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1641 } |
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1642 |
| 4851 | 1643 if ((cidx = scsi_hba_lookup_capstr(cap)) == -1) { |
| 1644 return (UNDEFINED); | |
| 1645 } | |
| 1646 | |
| 1647 /* | |
| 1648 * Process setcap request. | |
| 1649 */ | |
| 1650 if (doset) { | |
| 1651 /* | |
| 1652 * At present, we can only set binary (0/1) values | |
| 1653 */ | |
| 1654 switch (cidx) { | |
| 1655 case SCSI_CAP_ARQ: | |
| 1656 if (val == 0) { | |
| 1657 rval = 0; | |
| 1658 } else { | |
| 1659 rval = 1; | |
| 1660 } | |
| 1661 break; | |
| 1662 | |
| 1663 case SCSI_CAP_LUN_RESET: | |
| 1664 if (tgtonly == 0) { | |
| 1665 VHCI_DEBUG(1, (CE_WARN, vhci->vhci_dip, | |
| 1666 "scsi_vhci_setcap: " | |
| 1667 "Returning error since whom = 0")); | |
| 1668 rval = -1; | |
| 1669 break; | |
| 1670 } | |
| 1671 /* | |
| 1672 * Set the capability accordingly. | |
| 1673 */ | |
| 1674 mutex_enter(&vlun->svl_mutex); | |
| 1675 vlun->svl_support_lun_reset = val; | |
| 1676 rval = val; | |
| 1677 mutex_exit(&vlun->svl_mutex); | |
| 1678 break; | |
| 1679 | |
| 1680 case SCSI_CAP_SECTOR_SIZE: | |
| 1681 mutex_enter(&vlun->svl_mutex); | |
| 1682 vlun->svl_sector_size = val; | |
| 1683 vlun->svl_setcap_done = 1; | |
| 1684 mutex_exit(&vlun->svl_mutex); | |
| 1685 (void) vhci_pHCI_cap(ap, cap, val, tgtonly, NULL); | |
| 1686 | |
| 1687 /* Always return success */ | |
| 1688 rval = 1; | |
| 1689 break; | |
| 1690 | |
| 1691 default: | |
| 1692 VHCI_DEBUG(6, (CE_WARN, vhci->vhci_dip, | |
| 1693 "!vhci_setcap: unsupported %d", cidx)); | |
| 1694 rval = UNDEFINED; | |
| 1695 break; | |
| 1696 } | |
| 1697 | |
| 1698 VHCI_DEBUG(6, (CE_NOTE, vhci->vhci_dip, | |
| 1699 "!set cap: cap=%s, val/tgtonly/doset/rval = " | |
| 1700 "0x%x/0x%x/0x%x/%d\n", | |
| 1701 cap, val, tgtonly, doset, rval)); | |
| 1702 | |
| 1703 } else { | |
| 1704 /* | |
| 1705 * Process getcap request. | |
| 1706 */ | |
| 1707 switch (cidx) { | |
| 1708 case SCSI_CAP_DMA_MAX: | |
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1709 /* |
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1710 * For X86 this capability is caught in scsi_ifgetcap(). |
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1711 * XXX Should this be getting the value from the pHCI? |
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1712 */ |
| 4851 | 1713 rval = (int)VHCI_DMA_MAX_XFER_CAP; |
| 1714 break; | |
| 1715 | |
| 1716 case SCSI_CAP_INITIATOR_ID: | |
| 1717 rval = 0x00; | |
| 1718 break; | |
| 1719 | |
| 1720 case SCSI_CAP_ARQ: | |
| 1721 case SCSI_CAP_RESET_NOTIFICATION: | |
| 1722 case SCSI_CAP_TAGGED_QING: | |
| 1723 rval = 1; | |
| 1724 break; | |
| 1725 | |
| 1726 case SCSI_CAP_SCSI_VERSION: | |
| 1727 rval = 3; | |
| 1728 break; | |
| 1729 | |
| 1730 case SCSI_CAP_INTERCONNECT_TYPE: | |
| 1731 rval = INTERCONNECT_FABRIC; | |
| 1732 break; | |
| 1733 | |
| 1734 case SCSI_CAP_LUN_RESET: | |
| 1735 /* | |
| 1736 * scsi_vhci will always return success for LUN reset. | |
| 1737 * When request for doing LUN reset comes | |
| 1738 * through scsi_reset entry point, at that time attempt | |
| 1739 * will be made to do reset through all the possible | |
| 1740 * paths. | |
| 1741 */ | |
| 1742 mutex_enter(&vlun->svl_mutex); | |
| 1743 rval = vlun->svl_support_lun_reset; | |
| 1744 mutex_exit(&vlun->svl_mutex); | |
| 1745 VHCI_DEBUG(4, (CE_WARN, vhci->vhci_dip, | |
| 1746 "scsi_vhci_getcap:" | |
| 1747 "Getting the Lun reset capability %d", rval)); | |
| 1748 break; | |
| 1749 | |
| 1750 case SCSI_CAP_SECTOR_SIZE: | |
| 1751 mutex_enter(&vlun->svl_mutex); | |
| 1752 rval = vlun->svl_sector_size; | |
| 1753 mutex_exit(&vlun->svl_mutex); | |
| 1754 break; | |
| 1755 | |
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1756 case SCSI_CAP_CDB_LEN: |
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1757 rval = VHCI_SCSI_CDB_SIZE; |
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1758 break; |
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1759 |
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1760 case SCSI_CAP_DMA_MAX_ARCH: |
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1761 /* |
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1762 * For X86 this capability is caught in scsi_ifgetcap(). |
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1763 * XXX Should this be getting the value from the pHCI? |
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1764 */ |
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1765 rval = 0; |
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1766 break; |
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1767 |
| 4851 | 1768 default: |
| 1769 VHCI_DEBUG(6, (CE_WARN, vhci->vhci_dip, | |
| 1770 "!vhci_getcap: unsupported %d", cidx)); | |
| 1771 rval = UNDEFINED; | |
| 1772 break; | |
| 1773 } | |
| 1774 | |
| 1775 VHCI_DEBUG(6, (CE_NOTE, vhci->vhci_dip, | |
| 1776 "!get cap: cap=%s, val/tgtonly/doset/rval = " | |
| 1777 "0x%x/0x%x/0x%x/%d\n", | |
| 1778 cap, val, tgtonly, doset, rval)); | |
| 1779 } | |
| 1780 return (rval); | |
| 1781 } | |
| 1782 | |
| 1783 | |
| 1784 /* | |
| 1785 * Function name : vhci_scsi_getcap() | |
| 1786 * | |
| 1787 */ | |
| 1788 static int | |
| 1789 vhci_scsi_getcap(struct scsi_address *ap, char *cap, int whom) | |
| 1790 { | |
| 1791 return (vhci_commoncap(ap, cap, 0, whom, 0)); | |
| 1792 } | |
| 1793 | |
| 1794 static int | |
| 1795 vhci_scsi_setcap(struct scsi_address *ap, char *cap, int value, int whom) | |
| 1796 { | |
| 1797 return (vhci_commoncap(ap, cap, value, whom, 1)); | |
| 1798 } | |
| 1799 | |
| 1800 /* | |
| 1801 * Function name : vhci_scsi_abort() | |
| 1802 */ | |
| 1803 /* ARGSUSED */ | |
| 1804 static int | |
| 1805 vhci_scsi_abort(struct scsi_address *ap, struct scsi_pkt *pkt) | |
| 1806 { | |
| 1807 return (0); | |
| 1808 } | |
| 1809 | |
| 1810 /* | |
| 1811 * Function name : vhci_scsi_init_pkt | |
| 1812 * | |
| 1813 * Return Values : pointer to scsi_pkt, or NULL | |
| 1814 */ | |
| 1815 /* ARGSUSED */ | |
| 1816 static struct scsi_pkt * | |
| 1817 vhci_scsi_init_pkt(struct scsi_address *ap, struct scsi_pkt *pkt, | |
| 1818 struct buf *bp, int cmdlen, int statuslen, int tgtlen, | |
| 1819 int flags, int (*callback)(caddr_t), caddr_t arg) | |
| 1820 { | |
| 1821 struct scsi_vhci *vhci = ADDR2VHCI(ap); | |
| 1822 struct vhci_pkt *vpkt; | |
| 1823 int rval; | |
| 1824 int newpkt = 0; | |
| 1825 struct scsi_pkt *pktp; | |
| 1826 | |
| 1827 | |
| 1828 if (pkt == NULL) { | |
| 1829 if (cmdlen > VHCI_SCSI_CDB_SIZE) { | |
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1830 if ((cmdlen != VHCI_SCSI_OSD_CDB_SIZE) || |
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1831 ((flags & VHCI_SCSI_OSD_PKT_FLAGS) != |
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1832 VHCI_SCSI_OSD_PKT_FLAGS)) { |
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1833 VHCI_DEBUG(1, (CE_NOTE, NULL, |
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1834 "!init pkt: cdb size not supported\n")); |
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1835 return (NULL); |
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1836 } |
| 4851 | 1837 } |
| 1838 | |
| 1839 pktp = scsi_hba_pkt_alloc(vhci->vhci_dip, | |
| 1840 ap, cmdlen, statuslen, tgtlen, sizeof (*vpkt), callback, | |
| 1841 arg); | |
| 1842 | |
| 1843 if (pktp == NULL) { | |
| 1844 return (NULL); | |
| 1845 } | |
| 1846 | |
| 1847 /* Get the vhci's private structure */ | |
| 1848 vpkt = (struct vhci_pkt *)(pktp->pkt_ha_private); | |
| 1849 ASSERT(vpkt); | |
| 1850 | |
| 1851 /* Save the target driver's packet */ | |
| 1852 vpkt->vpkt_tgt_pkt = pktp; | |
| 1853 | |
| 1854 /* | |
| 1855 * Save pkt_tgt_init_pkt fields if deferred binding | |
| 1856 * is needed or for other purposes. | |
| 1857 */ | |
| 1858 vpkt->vpkt_tgt_init_pkt_flags = flags; | |
| 1859 vpkt->vpkt_flags = (callback == NULL_FUNC) ? CFLAG_NOWAIT : 0; | |
| 1860 vpkt->vpkt_state = VHCI_PKT_IDLE; | |
| 1861 vpkt->vpkt_tgt_init_cdblen = cmdlen; | |
| 1862 vpkt->vpkt_tgt_init_scblen = statuslen; | |
| 1863 newpkt = 1; | |
| 1864 } else { /* pkt not NULL */ | |
| 1865 vpkt = pkt->pkt_ha_private; | |
| 1866 } | |
| 1867 | |
| 1868 VHCI_DEBUG(8, (CE_NOTE, NULL, "vhci_scsi_init_pkt " | |
| 1869 "vpkt %p flags %x\n", (void *)vpkt, flags)); | |
| 1870 | |
| 1871 /* Clear any stale error flags */ | |
| 1872 if (bp) { | |
| 1873 bioerror(bp, 0); | |
| 1874 } | |
| 1875 | |
| 1876 vpkt->vpkt_tgt_init_bp = bp; | |
| 1877 | |
| 1878 if (flags & PKT_DMA_PARTIAL) { | |
| 1879 | |
| 1880 /* | |
| 1881 * Immediate binding is needed. | |
| 1882 * Target driver may not set this flag in next invocation. | |
| 1883 * vhci has to remember this flag was set during first | |
| 1884 * invocation of vhci_scsi_init_pkt. | |
| 1885 */ | |
| 1886 vpkt->vpkt_flags |= CFLAG_DMA_PARTIAL; | |
| 1887 } | |
| 1888 | |
| 1889 if (vpkt->vpkt_flags & CFLAG_DMA_PARTIAL) { | |
| 1890 | |
| 1891 /* | |
| 1892 * Re-initialize some of the target driver packet state | |
| 1893 * information. | |
| 1894 */ | |
| 1895 vpkt->vpkt_tgt_pkt->pkt_state = 0; | |
| 1896 vpkt->vpkt_tgt_pkt->pkt_statistics = 0; | |
| 1897 vpkt->vpkt_tgt_pkt->pkt_reason = 0; | |
| 1898 | |
| 1899 /* | |
| 1900 * Binding a vpkt->vpkt_path for this IO at init_time. | |
| 1901 * If an IO error happens later, target driver will clear | |
| 1902 * this vpkt->vpkt_path binding before re-init IO again. | |
| 1903 */ | |
| 1904 VHCI_DEBUG(8, (CE_NOTE, NULL, | |
| 1905 "vhci_scsi_init_pkt: calling v_b_t %p, newpkt %d\n", | |
| 1906 (void *)vpkt, newpkt)); | |
| 1907 if (pkt && vpkt->vpkt_hba_pkt) { | |
| 1908 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
| 1909 "v_s_i_p calling update_pHCI_pkt resid %ld\n", | |
| 1910 pkt->pkt_resid)); | |
| 1911 vhci_update_pHCI_pkt(vpkt, pkt); | |
| 1912 } | |
| 1913 if (callback == SLEEP_FUNC) { | |
| 1914 rval = vhci_bind_transport( | |
| 1915 ap, vpkt, flags, callback); | |
| 1916 } else { | |
| 1917 rval = vhci_bind_transport( | |
| 1918 ap, vpkt, flags, NULL_FUNC); | |
| 1919 } | |
| 1920 VHCI_DEBUG(8, (CE_NOTE, NULL, | |
| 1921 "vhci_scsi_init_pkt: v_b_t called 0x%p rval 0x%x\n", | |
| 1922 (void *)vpkt, rval)); | |
| 1923 if (bp) { | |
| 1924 if (rval == TRAN_FATAL_ERROR) { | |
| 1925 /* | |
| 1926 * No paths available. Could not bind | |
| 1927 * any pHCI. Setting EFAULT as a way | |
| 1928 * to indicate no DMA is mapped. | |
| 1929 */ | |
| 1930 bioerror(bp, EFAULT); | |
| 1931 } else { | |
| 1932 /* | |
| 1933 * Do not indicate any pHCI errors to | |
| 1934 * target driver otherwise. | |
| 1935 */ | |
| 1936 bioerror(bp, 0); | |
| 1937 } | |
| 1938 } | |
| 1939 if (rval != TRAN_ACCEPT) { | |
| 1940 VHCI_DEBUG(8, (CE_NOTE, NULL, | |
| 1941 "vhci_scsi_init_pkt: " | |
| 1942 "v_b_t failed 0x%p newpkt %x\n", | |
| 1943 (void *)vpkt, newpkt)); | |
| 1944 if (newpkt) { | |
| 1945 scsi_hba_pkt_free(ap, | |
| 1946 vpkt->vpkt_tgt_pkt); | |
| 1947 } | |
| 1948 return (NULL); | |
| 1949 } | |
| 1950 ASSERT(vpkt->vpkt_hba_pkt != NULL); | |
| 1951 ASSERT(vpkt->vpkt_path != NULL); | |
| 1952 | |
| 1953 /* Update the resid for the target driver */ | |
| 1954 vpkt->vpkt_tgt_pkt->pkt_resid = | |
| 1955 vpkt->vpkt_hba_pkt->pkt_resid; | |
| 1956 } | |
| 1957 | |
| 1958 return (vpkt->vpkt_tgt_pkt); | |
| 1959 } | |
| 1960 | |
| 1961 /* | |
| 1962 * Function name : vhci_scsi_destroy_pkt | |
| 1963 * | |
| 1964 * Return Values : none | |
| 1965 */ | |
| 1966 static void | |
| 1967 vhci_scsi_destroy_pkt(struct scsi_address *ap, struct scsi_pkt *pkt) | |
| 1968 { | |
| 1969 struct vhci_pkt *vpkt = (struct vhci_pkt *)pkt->pkt_ha_private; | |
| 1970 | |
| 1971 VHCI_DEBUG(8, (CE_NOTE, NULL, | |
| 1972 "vhci_scsi_destroy_pkt: vpkt 0x%p\n", (void *)vpkt)); | |
| 1973 | |
| 1974 vpkt->vpkt_tgt_init_pkt_flags = 0; | |
| 1975 if (vpkt->vpkt_hba_pkt) { | |
| 1976 scsi_destroy_pkt(vpkt->vpkt_hba_pkt); | |
| 1977 vpkt->vpkt_hba_pkt = NULL; | |
| 1978 } | |
| 1979 if (vpkt->vpkt_path) { | |
| 1980 mdi_rele_path(vpkt->vpkt_path); | |
| 1981 vpkt->vpkt_path = NULL; | |
| 1982 } | |
| 1983 | |
| 1984 ASSERT(vpkt->vpkt_state != VHCI_PKT_ISSUED); | |
| 1985 scsi_hba_pkt_free(ap, vpkt->vpkt_tgt_pkt); | |
| 1986 } | |
| 1987 | |
| 1988 /* | |
| 1989 * Function name : vhci_scsi_dmafree() | |
| 1990 * | |
| 1991 * Return Values : none | |
| 1992 */ | |
| 1993 /*ARGSUSED*/ | |
| 1994 static void | |
| 1995 vhci_scsi_dmafree(struct scsi_address *ap, struct scsi_pkt *pkt) | |
| 1996 { | |
| 1997 struct vhci_pkt *vpkt = (struct vhci_pkt *)pkt->pkt_ha_private; | |
| 1998 | |
| 1999 VHCI_DEBUG(6, (CE_NOTE, NULL, | |
| 2000 "vhci_scsi_dmafree: vpkt 0x%p\n", (void *)vpkt)); | |
| 2001 | |
| 2002 ASSERT(vpkt != NULL); | |
| 2003 if (vpkt->vpkt_hba_pkt) { | |
| 2004 scsi_destroy_pkt(vpkt->vpkt_hba_pkt); | |
| 2005 vpkt->vpkt_hba_pkt = NULL; | |
| 2006 } | |
| 2007 if (vpkt->vpkt_path) { | |
| 2008 mdi_rele_path(vpkt->vpkt_path); | |
| 2009 vpkt->vpkt_path = NULL; | |
| 2010 } | |
| 2011 } | |
| 2012 | |
| 2013 /* | |
| 2014 * Function name : vhci_scsi_sync_pkt() | |
| 2015 * | |
| 2016 * Return Values : none | |
| 2017 */ | |
| 2018 /*ARGSUSED*/ | |
| 2019 static void | |
| 2020 vhci_scsi_sync_pkt(struct scsi_address *ap, struct scsi_pkt *pkt) | |
| 2021 { | |
| 2022 struct vhci_pkt *vpkt = (struct vhci_pkt *)pkt->pkt_ha_private; | |
| 2023 | |
| 2024 ASSERT(vpkt != NULL); | |
| 2025 if (vpkt->vpkt_hba_pkt) { | |
| 2026 scsi_sync_pkt(vpkt->vpkt_hba_pkt); | |
| 2027 } | |
| 2028 } | |
| 2029 | |
| 2030 /* | |
| 2031 * routine for reset notification setup, to register or cancel. | |
| 2032 */ | |
| 2033 static int | |
| 2034 vhci_scsi_reset_notify(struct scsi_address *ap, int flag, | |
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2035 void (*callback)(caddr_t), caddr_t arg) |
| 4851 | 2036 { |
| 2037 struct scsi_vhci *vhci = ADDR2VHCI(ap); | |
| 2038 return (scsi_hba_reset_notify_setup(ap, flag, callback, arg, | |
| 2039 &vhci->vhci_mutex, &vhci->vhci_reset_notify_listf)); | |
| 2040 } | |
| 2041 | |
| 2042 static int | |
| 2043 vhci_scsi_get_name_bus_addr(struct scsi_device *sd, | |
| 2044 char *name, int len, int bus_addr) | |
| 2045 { | |
| 2046 dev_info_t *cdip; | |
| 2047 char *guid; | |
| 2048 scsi_vhci_lun_t *vlun; | |
| 2049 | |
| 2050 ASSERT(sd != NULL); | |
| 2051 ASSERT(name != NULL); | |
| 2052 | |
| 2053 cdip = sd->sd_dev; | |
| 2054 | |
| 2055 ASSERT(cdip != NULL); | |
| 2056 | |
| 2057 if (mdi_component_is_client(cdip, NULL) != MDI_SUCCESS) { | |
| 2058 name[0] = '\0'; | |
| 2059 return (1); | |
| 2060 } | |
| 2061 | |
| 2062 if (ddi_prop_lookup_string(DDI_DEV_T_ANY, cdip, PROPFLAGS, | |
| 2063 MDI_CLIENT_GUID_PROP, &guid) != DDI_SUCCESS) { | |
| 2064 name[0] = '\0'; | |
| 2065 return (1); | |
| 2066 } | |
| 2067 | |
| 2068 vlun = ADDR2VLUN(&sd->sd_address); | |
| 2069 if (bus_addr && vlun && vlun->svl_fops_name) { | |
| 2070 /* report the guid and the name of the failover module */ | |
| 2071 (void) snprintf(name, len, "g%s %s", guid, vlun->svl_fops_name); | |
| 2072 } else { | |
| 2073 /* report the guid */ | |
| 2074 (void) snprintf(name, len, "g%s", guid); | |
| 2075 } | |
| 2076 | |
| 2077 ddi_prop_free(guid); | |
| 2078 return (1); | |
| 2079 } | |
| 2080 | |
| 2081 static int | |
| 2082 vhci_scsi_get_bus_addr(struct scsi_device *sd, char *name, int len) | |
| 2083 { | |
| 2084 return (vhci_scsi_get_name_bus_addr(sd, name, len, 1)); | |
| 2085 } | |
| 2086 | |
| 2087 static int | |
| 2088 vhci_scsi_get_name(struct scsi_device *sd, char *name, int len) | |
| 2089 { | |
| 2090 return (vhci_scsi_get_name_bus_addr(sd, name, len, 0)); | |
| 2091 } | |
| 2092 | |
| 2093 /* | |
| 2094 * Return a pointer to the guid part of the devnm. | |
| 2095 * devnm format is "nodename@busaddr", busaddr format is "gGUID". | |
| 2096 */ | |
| 2097 static char * | |
| 2098 vhci_devnm_to_guid(char *devnm) | |
| 2099 { | |
| 2100 char *cp = devnm; | |
| 2101 | |
| 2102 if (devnm == NULL) | |
| 2103 return (NULL); | |
| 2104 | |
| 2105 while (*cp != '\0' && *cp != '@') | |
| 2106 cp++; | |
| 2107 if (*cp == '@' && *(cp + 1) == 'g') | |
| 2108 return (cp + 2); | |
| 2109 return (NULL); | |
| 2110 } | |
| 2111 | |
| 2112 static int | |
| 2113 vhci_bind_transport(struct scsi_address *ap, struct vhci_pkt *vpkt, int flags, | |
| 2114 int (*func)(caddr_t)) | |
| 2115 { | |
| 2116 struct scsi_vhci *vhci = ADDR2VHCI(ap); | |
| 2117 dev_info_t *cdip = ADDR2DIP(ap); | |
| 2118 mdi_pathinfo_t *pip = NULL; | |
| 2119 mdi_pathinfo_t *npip = NULL; | |
| 2120 scsi_vhci_priv_t *svp = NULL; | |
| 2121 struct scsi_device *psd = NULL; | |
| 2122 struct scsi_address *address = NULL; | |
| 2123 struct scsi_pkt *pkt = NULL; | |
| 2124 int rval = -1; | |
| 2125 int pgr_sema_held = 0; | |
| 2126 int held; | |
| 2127 int mps_flag = MDI_SELECT_ONLINE_PATH; | |
| 2128 struct scsi_vhci_lun *vlun; | |
| 2129 time_t tnow; | |
|
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2130 int path_instance = 0; |
| 4851 | 2131 |
| 2132 vlun = ADDR2VLUN(ap); | |
| 2133 ASSERT(vlun != 0); | |
| 2134 | |
| 2135 if ((vpkt->vpkt_tgt_pkt->pkt_cdbp[0] == SCMD_PROUT) && | |
| 2136 (((vpkt->vpkt_tgt_pkt->pkt_cdbp[1] & 0x1f) == | |
| 2137 VHCI_PROUT_REGISTER) || | |
| 2138 ((vpkt->vpkt_tgt_pkt->pkt_cdbp[1] & 0x1f) == | |
| 2139 VHCI_PROUT_R_AND_IGNORE))) { | |
| 2140 if (!sema_tryp(&vlun->svl_pgr_sema)) | |
| 2141 return (TRAN_BUSY); | |
| 2142 pgr_sema_held = 1; | |
| 2143 if (vlun->svl_first_path != NULL) { | |
| 2144 rval = mdi_select_path(cdip, NULL, | |
| 2145 MDI_SELECT_ONLINE_PATH | MDI_SELECT_STANDBY_PATH, | |
| 2146 NULL, &pip); | |
| 2147 if ((rval != MDI_SUCCESS) || (pip == NULL)) { | |
| 2148 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
| 2149 "vhci_bind_transport: path select fail\n")); | |
| 2150 } else { | |
| 2151 npip = pip; | |
| 2152 do { | |
| 2153 if (npip == vlun->svl_first_path) { | |
| 2154 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
| 2155 "vhci_bind_transport: " | |
| 2156 "valid first path 0x%p\n", | |
| 2157 (void *) | |
| 2158 vlun->svl_first_path)); | |
| 2159 pip = vlun->svl_first_path; | |
| 2160 goto bind_path; | |
| 2161 } | |
| 2162 pip = npip; | |
| 2163 rval = mdi_select_path(cdip, NULL, | |
| 2164 MDI_SELECT_ONLINE_PATH | | |
| 2165 MDI_SELECT_STANDBY_PATH, | |
| 2166 pip, &npip); | |
| 2167 mdi_rele_path(pip); | |
| 2168 } while ((rval == MDI_SUCCESS) && | |
| 2169 (npip != NULL)); | |
| 2170 } | |
| 2171 } | |
| 2172 | |
| 2173 if (vlun->svl_first_path) { | |
| 2174 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
| 2175 "vhci_bind_transport: invalid first path 0x%p\n", | |
| 2176 (void *)vlun->svl_first_path)); | |
| 2177 vlun->svl_first_path = NULL; | |
| 2178 } | |
| 2179 } else if (vpkt->vpkt_tgt_pkt->pkt_cdbp[0] == SCMD_PRIN) { | |
| 2180 if ((vpkt->vpkt_state & VHCI_PKT_THRU_TASKQ) == 0) { | |
| 2181 if (!sema_tryp(&vlun->svl_pgr_sema)) | |
| 2182 return (TRAN_BUSY); | |
| 2183 } | |
| 2184 pgr_sema_held = 1; | |
| 2185 } | |
| 2186 | |
| 2187 /* | |
| 2188 * If the path is already bound for PKT_PARTIAL_DMA case, | |
| 2189 * try to use the same path. | |
| 2190 */ | |
| 2191 if ((vpkt->vpkt_flags & CFLAG_DMA_PARTIAL) && vpkt->vpkt_path) { | |
| 2192 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
| 2193 "vhci_bind_transport: PKT_PARTIAL_DMA " | |
| 2194 "vpkt 0x%p, path 0x%p\n", | |
| 2195 (void *)vpkt, (void *)vpkt->vpkt_path)); | |
| 2196 pip = vpkt->vpkt_path; | |
| 2197 goto bind_path; | |
| 2198 } | |
| 2199 | |
| 2200 /* | |
|
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|
2201 * Get path_instance. Non-zero with FLAG_PKT_PATH_INSTANCE set |
|
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|
2202 * indicates that mdi_select_path should be called to select a |
|
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|
2203 * specific instance. |
|
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|
2204 * |
|
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2205 * NB: Condition pkt_path_instance reference on proper allocation. |
|
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|
2206 */ |
|
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|
2207 if ((vpkt->vpkt_tgt_pkt->pkt_flags & FLAG_PKT_PATH_INSTANCE) && |
|
4b91990abccd
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|
2208 scsi_pkt_allocated_correctly(vpkt->vpkt_tgt_pkt)) { |
|
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|
2209 path_instance = vpkt->vpkt_tgt_pkt->pkt_path_instance; |
|
7121
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|
2210 } |
|
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|
2211 |
|
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|
2212 /* |
| 4851 | 2213 * If reservation is active bind the transport directly to the pip |
| 2214 * with the reservation. | |
| 2215 */ | |
| 2216 if (vpkt->vpkt_hba_pkt == NULL) { | |
| 2217 if (vlun->svl_flags & VLUN_RESERVE_ACTIVE_FLG) { | |
| 2218 if (MDI_PI_IS_ONLINE(vlun->svl_resrv_pip)) { | |
| 2219 pip = vlun->svl_resrv_pip; | |
| 2220 mdi_hold_path(pip); | |
| 2221 vlun->svl_waiting_for_activepath = 0; | |
| 2222 rval = MDI_SUCCESS; | |
| 2223 goto bind_path; | |
| 2224 } else { | |
| 2225 if (pgr_sema_held) { | |
| 2226 sema_v(&vlun->svl_pgr_sema); | |
| 2227 } | |
| 2228 return (TRAN_BUSY); | |
| 2229 } | |
| 2230 } | |
| 2231 try_again: | |
|
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|
2232 rval = mdi_select_path(cdip, vpkt->vpkt_tgt_init_bp, |
|
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|
2233 path_instance ? MDI_SELECT_PATH_INSTANCE : 0, |
|
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|
2234 (void *)(intptr_t)path_instance, &pip); |
| 4851 | 2235 if (rval == MDI_BUSY) { |
| 2236 if (pgr_sema_held) { | |
| 2237 sema_v(&vlun->svl_pgr_sema); | |
| 2238 } | |
| 2239 return (TRAN_BUSY); | |
| 2240 } else if (rval == MDI_DEVI_ONLINING) { | |
| 2241 /* | |
| 2242 * if we are here then we are in the midst of | |
| 2243 * an attach/probe of the client device. | |
| 2244 * We attempt to bind to ONLINE path if available, | |
| 2245 * else it is OK to bind to a STANDBY path (instead | |
| 2246 * of triggering a failover) because IO associated | |
| 2247 * with attach/probe (eg. INQUIRY, block 0 read) | |
| 2248 * are completed by targets even on passive paths | |
| 2249 * If no ONLINE paths available, it is important | |
| 2250 * to set svl_waiting_for_activepath for two | |
| 2251 * reasons: (1) avoid sense analysis in the | |
| 2252 * "external failure detection" codepath in | |
| 2253 * vhci_intr(). Failure to do so will result in | |
| 2254 * infinite loop (unless an ONLINE path becomes | |
| 2255 * available at some point) (2) avoid | |
| 2256 * unnecessary failover (see "---Waiting For Active | |
| 2257 * Path---" comment below). | |
| 2258 */ | |
| 2259 VHCI_DEBUG(1, (CE_NOTE, NULL, "!%p in onlining " | |
| 2260 "state\n", (void *)cdip)); | |
| 2261 pip = NULL; | |
| 2262 rval = mdi_select_path(cdip, vpkt->vpkt_tgt_init_bp, | |
| 2263 mps_flag, NULL, &pip); | |
| 2264 if ((rval != MDI_SUCCESS) || (pip == NULL)) { | |
| 2265 if (vlun->svl_waiting_for_activepath == 0) { | |
| 2266 vlun->svl_waiting_for_activepath = 1; | |
| 2267 vlun->svl_wfa_time = ddi_get_time(); | |
| 2268 } | |
| 2269 mps_flag |= MDI_SELECT_STANDBY_PATH; | |
| 2270 rval = mdi_select_path(cdip, | |
| 2271 vpkt->vpkt_tgt_init_bp, | |
| 2272 mps_flag, NULL, &pip); | |
| 2273 if ((rval != MDI_SUCCESS) || (pip == NULL)) { | |
| 2274 if (pgr_sema_held) { | |
| 2275 sema_v(&vlun->svl_pgr_sema); | |
| 2276 } | |
| 2277 return (TRAN_FATAL_ERROR); | |
| 2278 } | |
| 2279 goto bind_path; | |
| 2280 } | |
| 2281 } else if (rval == MDI_FAILURE) { | |
| 2282 if (pgr_sema_held) { | |
| 2283 sema_v(&vlun->svl_pgr_sema); | |
| 2284 } | |
| 2285 return (TRAN_FATAL_ERROR); | |
| 2286 } | |
| 2287 | |
| 2288 if ((pip == NULL) || (rval == MDI_NOPATH)) { | |
| 2289 while (vlun->svl_waiting_for_activepath) { | |
| 2290 /* | |
| 2291 * ---Waiting For Active Path--- | |
| 2292 * This device was discovered across a | |
| 2293 * passive path; lets wait for a little | |
| 2294 * bit, hopefully an active path will | |
| 2295 * show up obviating the need for a | |
| 2296 * failover | |
| 2297 */ | |
| 2298 tnow = ddi_get_time(); | |
| 2299 if (tnow - vlun->svl_wfa_time >= 60) { | |
| 2300 vlun->svl_waiting_for_activepath = 0; | |
| 2301 } else { | |
| 2302 drv_usecwait(1000); | |
| 2303 if (vlun->svl_waiting_for_activepath | |
| 2304 == 0) { | |
| 2305 /* | |
| 2306 * an active path has come | |
| 2307 * online! | |
| 2308 */ | |
| 2309 goto try_again; | |
| 2310 } | |
| 2311 } | |
| 2312 } | |
| 2313 VHCI_HOLD_LUN(vlun, VH_NOSLEEP, held); | |
| 2314 if (!held) { | |
| 2315 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
| 2316 "!Lun not held\n")); | |
| 2317 if (pgr_sema_held) { | |
| 2318 sema_v(&vlun->svl_pgr_sema); | |
| 2319 } | |
| 2320 return (TRAN_BUSY); | |
| 2321 } | |
| 2322 /* | |
| 2323 * now that the LUN is stable, one last check | |
| 2324 * to make sure no other changes sneaked in | |
| 2325 * (like a path coming online or a | |
| 2326 * failover initiated by another thread) | |
| 2327 */ | |
| 2328 pip = NULL; | |
| 2329 rval = mdi_select_path(cdip, vpkt->vpkt_tgt_init_bp, | |
| 2330 0, NULL, &pip); | |
| 2331 if (pip != NULL) { | |
| 2332 VHCI_RELEASE_LUN(vlun); | |
| 2333 vlun->svl_waiting_for_activepath = 0; | |
| 2334 goto bind_path; | |
| 2335 } | |
| 2336 | |
| 2337 /* | |
| 2338 * Check if there is an ONLINE path OR a STANDBY path | |
| 2339 * available. If none is available, do not attempt | |
| 2340 * to do a failover, just return a fatal error at this | |
| 2341 * point. | |
| 2342 */ | |
| 2343 npip = NULL; | |
| 2344 rval = mdi_select_path(cdip, NULL, | |
| 2345 (MDI_SELECT_ONLINE_PATH | MDI_SELECT_STANDBY_PATH), | |
| 2346 NULL, &npip); | |
| 2347 if ((npip == NULL) || (rval != MDI_SUCCESS)) { | |
| 2348 /* | |
| 2349 * No paths available, jus return FATAL error. | |
| 2350 */ | |
| 2351 VHCI_RELEASE_LUN(vlun); | |
| 2352 if (pgr_sema_held) { | |
| 2353 sema_v(&vlun->svl_pgr_sema); | |
| 2354 } | |
| 2355 return (TRAN_FATAL_ERROR); | |
| 2356 } | |
| 2357 mdi_rele_path(npip); | |
| 2358 VHCI_DEBUG(1, (CE_NOTE, NULL, "!invoking " | |
| 2359 "mdi_failover\n")); | |
| 2360 rval = mdi_failover(vhci->vhci_dip, cdip, | |
| 2361 MDI_FAILOVER_ASYNC); | |
| 2362 if (rval == MDI_FAILURE) { | |
| 2363 VHCI_RELEASE_LUN(vlun); | |
| 2364 if (pgr_sema_held) { | |
| 2365 sema_v(&vlun->svl_pgr_sema); | |
| 2366 } | |
| 2367 return (TRAN_FATAL_ERROR); | |
| 2368 } else if (rval == MDI_BUSY) { | |
| 2369 VHCI_RELEASE_LUN(vlun); | |
| 2370 if (pgr_sema_held) { | |
| 2371 sema_v(&vlun->svl_pgr_sema); | |
| 2372 } | |
| 2373 return (TRAN_BUSY); | |
| 2374 } else { | |
| 2375 if (pgr_sema_held) { | |
| 2376 sema_v(&vlun->svl_pgr_sema); | |
| 2377 } | |
| 2378 return (TRAN_BUSY); | |
| 2379 } | |
| 2380 } | |
| 2381 vlun->svl_waiting_for_activepath = 0; | |
| 2382 bind_path: | |
| 2383 vpkt->vpkt_path = pip; | |
| 2384 svp = (scsi_vhci_priv_t *)mdi_pi_get_vhci_private(pip); | |
| 2385 ASSERT(svp != NULL); | |
| 2386 | |
| 2387 psd = svp->svp_psd; | |
| 2388 ASSERT(psd != NULL); | |
| 2389 address = &psd->sd_address; | |
| 2390 } else { | |
| 2391 pkt = vpkt->vpkt_hba_pkt; | |
| 2392 address = &pkt->pkt_address; | |
| 2393 } | |
| 2394 | |
|
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|
2395 /* Verify match of specified path_instance and selected path_instance */ |
|
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|
2396 ASSERT((path_instance == 0) || |
|
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|
2397 (path_instance == mdi_pi_get_path_instance(vpkt->vpkt_path))); |
|
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|
2398 |
| 4851 | 2399 /* |
| 2400 * For PKT_PARTIAL_DMA case, call pHCI's scsi_init_pkt whenever | |
| 2401 * target driver calls vhci_scsi_init_pkt. | |
| 2402 */ | |
| 2403 if ((vpkt->vpkt_flags & CFLAG_DMA_PARTIAL) && | |
| 2404 vpkt->vpkt_path && vpkt->vpkt_hba_pkt) { | |
| 2405 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
| 2406 "vhci_bind_transport: PKT_PARTIAL_DMA " | |
| 2407 "vpkt 0x%p, path 0x%p hba_pkt 0x%p\n", | |
| 2408 (void *)vpkt, (void *)vpkt->vpkt_path, (void *)pkt)); | |
| 2409 pkt = vpkt->vpkt_hba_pkt; | |
| 2410 address = &pkt->pkt_address; | |
| 2411 } | |
| 2412 | |
| 2413 if (pkt == NULL || (vpkt->vpkt_flags & CFLAG_DMA_PARTIAL)) { | |
| 2414 pkt = scsi_init_pkt(address, pkt, | |
| 2415 vpkt->vpkt_tgt_init_bp, vpkt->vpkt_tgt_init_cdblen, | |
|
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|
2416 vpkt->vpkt_tgt_init_scblen, 0, flags, func, NULL); |
| 4851 | 2417 |
| 2418 if (pkt == NULL) { | |
| 2419 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
| 2420 "!bind transport: 0x%p 0x%p 0x%p\n", | |
| 2421 (void *)vhci, (void *)psd, (void *)vpkt)); | |
| 2422 if ((vpkt->vpkt_hba_pkt == NULL) && vpkt->vpkt_path) { | |
| 2423 MDI_PI_ERRSTAT(vpkt->vpkt_path, | |
| 2424 MDI_PI_TRANSERR); | |
| 2425 mdi_rele_path(vpkt->vpkt_path); | |
| 2426 vpkt->vpkt_path = NULL; | |
| 2427 } | |
| 2428 if (pgr_sema_held) { | |
| 2429 sema_v(&vlun->svl_pgr_sema); | |
| 2430 } | |
| 2431 /* | |
| 2432 * Looks like a fatal error. | |
| 2433 * May be device disappeared underneath. | |
| 2434 * Give another chance to target driver for a retry to | |
| 2435 * get another path. | |
| 2436 */ | |
| 2437 return (TRAN_BUSY); | |
| 2438 } | |
| 2439 } | |
| 2440 | |
| 2441 pkt->pkt_private = vpkt; | |
| 2442 vpkt->vpkt_hba_pkt = pkt; | |
| 2443 return (TRAN_ACCEPT); | |
| 2444 } | |
| 2445 | |
| 2446 | |
| 2447 /*PRINTFLIKE3*/ | |
| 2448 void | |
| 2449 vhci_log(int level, dev_info_t *dip, const char *fmt, ...) | |
| 2450 { | |
| 2451 char buf[256]; | |
| 2452 va_list ap; | |
| 2453 | |
| 2454 va_start(ap, fmt); | |
| 2455 (void) vsprintf(buf, fmt, ap); | |
| 2456 va_end(ap); | |
| 2457 | |
| 2458 scsi_log(dip, "scsi_vhci", level, buf); | |
| 2459 } | |
| 2460 | |
| 2461 /* do a PGR out with the information we've saved away */ | |
| 2462 static int | |
| 2463 vhci_do_prout(scsi_vhci_priv_t *svp) | |
| 2464 { | |
| 2465 | |
| 2466 struct scsi_pkt *new_pkt; | |
| 2467 struct buf *bp; | |
|
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2468 scsi_vhci_lun_t *vlun = svp->svp_svl; |
| 4851 | 2469 int rval, retry, nr_retry, ua_retry; |
| 2470 struct scsi_extended_sense *sns; | |
| 2471 | |
| 2472 bp = getrbuf(KM_SLEEP); | |
| 2473 bp->b_flags = B_WRITE; | |
| 2474 bp->b_resid = 0; | |
|
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2475 bp->b_un.b_addr = (caddr_t)&vlun->svl_prout; |
|
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2476 bp->b_bcount = vlun->svl_bcount; |
| 4851 | 2477 |
| 2478 VHCI_INCR_PATH_CMDCOUNT(svp); | |
| 2479 | |
| 2480 new_pkt = scsi_init_pkt(&svp->svp_psd->sd_address, NULL, bp, | |
| 2481 CDB_GROUP1, sizeof (struct scsi_arq_status), 0, 0, | |
| 2482 SLEEP_FUNC, NULL); | |
| 2483 if (new_pkt == NULL) { | |
| 2484 VHCI_DECR_PATH_CMDCOUNT(svp); | |
| 2485 freerbuf(bp); | |
| 2486 cmn_err(CE_WARN, "!vhci_do_prout: scsi_init_pkt failed"); | |
| 2487 return (0); | |
| 2488 } | |
| 2489 mutex_enter(&vlun->svl_mutex); | |
| 2490 bp->b_un.b_addr = (caddr_t)&vlun->svl_prout; | |
| 2491 bp->b_bcount = vlun->svl_bcount; | |
| 2492 bcopy(vlun->svl_cdb, new_pkt->pkt_cdbp, | |
| 2493 sizeof (vlun->svl_cdb)); | |
| 2494 new_pkt->pkt_time = vlun->svl_time; | |
| 2495 mutex_exit(&vlun->svl_mutex); | |
| 2496 new_pkt->pkt_flags = FLAG_NOINTR; | |
| 2497 | |
| 2498 ua_retry = nr_retry = retry = 0; | |
| 2499 again: | |
| 2500 rval = vhci_do_scsi_cmd(new_pkt); | |
| 2501 if (rval != 1) { | |
| 2502 if ((new_pkt->pkt_reason == CMD_CMPLT) && | |
| 2503 (SCBP_C(new_pkt) == STATUS_CHECK) && | |
| 2504 (new_pkt->pkt_state & STATE_ARQ_DONE)) { | |
| 2505 sns = &(((struct scsi_arq_status *)(uintptr_t) | |
| 2506 (new_pkt->pkt_scbp))->sts_sensedata); | |
| 2507 if ((sns->es_key == KEY_UNIT_ATTENTION) || | |
| 2508 (sns->es_key == KEY_NOT_READY)) { | |
| 2509 int max_retry; | |
| 2510 struct scsi_failover_ops *fops; | |
| 2511 fops = vlun->svl_fops; | |
|
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2512 rval = fops->sfo_analyze_sense(svp->svp_psd, |
|
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2513 sns, vlun->svl_fops_ctpriv); |
| 4851 | 2514 if (rval == SCSI_SENSE_NOT_READY) { |
| 2515 max_retry = vhci_prout_not_ready_retry; | |
| 2516 retry = nr_retry++; | |
| 2517 delay(1*drv_usectohz(1000000)); | |
| 2518 } else { | |
| 2519 /* chk for state change and update */ | |
| 2520 if (rval == SCSI_SENSE_STATE_CHANGED) { | |
| 2521 int held; | |
| 2522 VHCI_HOLD_LUN(vlun, | |
| 2523 VH_NOSLEEP, held); | |
| 2524 if (!held) { | |
| 2525 rval = TRAN_BUSY; | |
| 2526 } else { | |
| 2527 /* chk for alua first */ | |
| 2528 vhci_update_pathstates( | |
| 2529 (void *)vlun); | |
| 2530 } | |
| 2531 } | |
| 2532 retry = ua_retry++; | |
| 2533 max_retry = VHCI_MAX_PGR_RETRIES; | |
| 2534 } | |
| 2535 if (retry < max_retry) { | |
| 2536 VHCI_DEBUG(4, (CE_WARN, NULL, | |
| 2537 "!vhci_do_prout retry 0x%x " | |
| 2538 "(0x%x 0x%x 0x%x)", | |
| 2539 SCBP_C(new_pkt), | |
| 2540 new_pkt->pkt_cdbp[0], | |
| 2541 new_pkt->pkt_cdbp[1], | |
| 2542 new_pkt->pkt_cdbp[2])); | |
| 2543 goto again; | |
| 2544 } | |
| 2545 rval = 0; | |
| 2546 VHCI_DEBUG(4, (CE_WARN, NULL, | |
| 2547 "!vhci_do_prout 0x%x " | |
| 2548 "(0x%x 0x%x 0x%x)", | |
| 2549 SCBP_C(new_pkt), | |
| 2550 new_pkt->pkt_cdbp[0], | |
| 2551 new_pkt->pkt_cdbp[1], | |
| 2552 new_pkt->pkt_cdbp[2])); | |
| 2553 } else if (sns->es_key == KEY_ILLEGAL_REQUEST) | |
| 2554 rval = VHCI_PGR_ILLEGALOP; | |
| 2555 } | |
| 2556 } else { | |
| 2557 rval = 1; | |
| 2558 } | |
| 2559 scsi_destroy_pkt(new_pkt); | |
| 2560 VHCI_DECR_PATH_CMDCOUNT(svp); | |
| 2561 freerbuf(bp); | |
| 2562 return (rval); | |
| 2563 } | |
| 2564 | |
| 2565 static void | |
| 2566 vhci_run_cmd(void *arg) | |
| 2567 { | |
| 2568 struct scsi_pkt *pkt = (struct scsi_pkt *)arg; | |
| 2569 struct scsi_pkt *tpkt; | |
| 2570 scsi_vhci_priv_t *svp; | |
| 2571 mdi_pathinfo_t *pip, *npip; | |
| 2572 scsi_vhci_lun_t *vlun; | |
| 2573 dev_info_t *cdip; | |
| 2574 scsi_vhci_priv_t *nsvp; | |
| 2575 int fail = 0; | |
| 2576 int rval; | |
| 2577 struct vhci_pkt *vpkt; | |
| 2578 uchar_t cdb_1; | |
| 2579 vhci_prout_t *prout; | |
| 2580 | |
| 2581 vpkt = (struct vhci_pkt *)pkt->pkt_private; | |
| 2582 tpkt = vpkt->vpkt_tgt_pkt; | |
| 2583 pip = vpkt->vpkt_path; | |
| 2584 svp = (scsi_vhci_priv_t *)mdi_pi_get_vhci_private(pip); | |
| 2585 if (svp == NULL) { | |
| 2586 tpkt->pkt_reason = CMD_TRAN_ERR; | |
| 2587 tpkt->pkt_statistics = STAT_ABORTED; | |
| 2588 goto done; | |
| 2589 } | |
| 2590 vlun = svp->svp_svl; | |
| 2591 prout = &vlun->svl_prout; | |
| 2592 if (SCBP_C(pkt) != STATUS_GOOD) | |
| 2593 fail++; | |
| 2594 cdip = vlun->svl_dip; | |
| 2595 pip = npip = NULL; | |
| 2596 rval = mdi_select_path(cdip, NULL, | |
| 2597 MDI_SELECT_ONLINE_PATH|MDI_SELECT_STANDBY_PATH, NULL, &npip); | |
| 2598 if ((rval != MDI_SUCCESS) || (npip == NULL)) { | |
| 2599 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
| 2600 "vhci_run_cmd: no path! 0x%p\n", (void *)svp)); | |
| 2601 tpkt->pkt_reason = CMD_TRAN_ERR; | |
| 2602 tpkt->pkt_statistics = STAT_ABORTED; | |
| 2603 goto done; | |
| 2604 } | |
| 2605 | |
| 2606 cdb_1 = vlun->svl_cdb[1]; | |
| 2607 vlun->svl_cdb[1] &= 0xe0; | |
| 2608 vlun->svl_cdb[1] |= VHCI_PROUT_R_AND_IGNORE; | |
| 2609 | |
| 2610 do { | |
|
6941
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
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6777
diff
changeset
|
2611 nsvp = (scsi_vhci_priv_t *)mdi_pi_get_vhci_private(npip); |
| 4851 | 2612 if (nsvp == NULL) { |
| 2613 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
| 2614 "vhci_run_cmd: no " | |
| 2615 "client priv! 0x%p offlined?\n", | |
| 2616 (void *)npip)); | |
| 2617 goto next_path; | |
| 2618 } | |
| 2619 if (vlun->svl_first_path == npip) { | |
| 2620 goto next_path; | |
| 2621 } else { | |
| 2622 if (vhci_do_prout(nsvp) != 1) | |
| 2623 fail++; | |
| 2624 } | |
| 2625 next_path: | |
| 2626 pip = npip; | |
| 2627 rval = mdi_select_path(cdip, NULL, | |
| 2628 MDI_SELECT_ONLINE_PATH|MDI_SELECT_STANDBY_PATH, | |
| 2629 pip, &npip); | |
| 2630 mdi_rele_path(pip); | |
| 2631 } while ((rval == MDI_SUCCESS) && (npip != NULL)); | |
| 2632 | |
| 2633 vlun->svl_cdb[1] = cdb_1; | |
| 2634 | |
| 2635 if (fail) { | |
| 2636 VHCI_DEBUG(4, (CE_WARN, NULL, "%s%d: key registration failed, " | |
| 2637 "couldn't be replicated on all paths", | |
| 2638 ddi_driver_name(cdip), ddi_get_instance(cdip))); | |
| 2639 vhci_print_prout_keys(vlun, "vhci_run_cmd: "); | |
| 2640 | |
| 2641 if (SCBP_C(pkt) != STATUS_GOOD) { | |
| 2642 tpkt->pkt_reason = CMD_TRAN_ERR; | |
| 2643 tpkt->pkt_statistics = STAT_ABORTED; | |
| 2644 } | |
| 2645 } else { | |
| 2646 vlun->svl_pgr_active = 1; | |
| 2647 vhci_print_prout_keys(vlun, "vhci_run_cmd: before bcopy:"); | |
| 2648 | |
| 2649 bcopy((const void *)prout->service_key, | |
| 2650 (void *)prout->active_service_key, MHIOC_RESV_KEY_SIZE); | |
| 2651 bcopy((const void *)prout->res_key, | |
| 2652 (void *)prout->active_res_key, MHIOC_RESV_KEY_SIZE); | |
| 2653 | |
| 2654 vhci_print_prout_keys(vlun, "vhci_run_cmd: after bcopy:"); | |
| 2655 } | |
| 2656 done: | |
| 2657 if (SCBP_C(pkt) == STATUS_GOOD) | |
| 2658 vlun->svl_first_path = NULL; | |
| 2659 | |
| 2660 if (svp) | |
| 2661 VHCI_DECR_PATH_CMDCOUNT(svp); | |
| 2662 | |
| 2663 if ((vpkt->vpkt_flags & CFLAG_DMA_PARTIAL) == 0) { | |
| 2664 scsi_destroy_pkt(pkt); | |
| 2665 vpkt->vpkt_hba_pkt = NULL; | |
| 2666 if (vpkt->vpkt_path) { | |
| 2667 mdi_rele_path(vpkt->vpkt_path); | |
| 2668 vpkt->vpkt_path = NULL; | |
| 2669 } | |
| 2670 } | |
| 2671 | |
| 2672 sema_v(&vlun->svl_pgr_sema); | |
| 2673 /* | |
| 2674 * The PROUT commands are not included in the automatic retry | |
| 2675 * mechanism, therefore, vpkt_org_vpkt should never be set here. | |
| 2676 */ | |
| 2677 ASSERT(vpkt->vpkt_org_vpkt == NULL); | |
| 2678 if (tpkt->pkt_comp) | |
| 2679 (*tpkt->pkt_comp)(tpkt); | |
| 2680 | |
| 2681 } | |
| 2682 | |
| 2683 /* | |
| 2684 * Get the keys registered with this target. Since we will have | |
| 2685 * registered the same key with multiple initiators, strip out | |
| 2686 * any duplicate keys. | |
| 2687 * | |
| 2688 * The pointers which will be used to filter the registered keys from | |
| 2689 * the device will be stored in filter_prin and filter_pkt. If the | |
| 2690 * allocation length of the buffer was sufficient for the number of | |
| 2691 * parameter data bytes available to be returned by the device then the | |
| 2692 * key filtering will use the keylist returned from the original | |
| 2693 * request. If the allocation length of the buffer was not sufficient, | |
| 2694 * then the filtering will use the keylist returned from the request | |
| 2695 * that is resent below. | |
| 2696 * | |
| 2697 * If the device returns an additional length field that is greater than | |
| 2698 * the allocation length of the buffer, then allocate a new buffer which | |
| 2699 * can accommodate the number of parameter data bytes available to be | |
| 2700 * returned. Resend the scsi PRIN command, filter out the duplicate | |
| 2701 * keys and return as many of the unique keys found that was originally | |
| 2702 * requested and set the additional length field equal to the data bytes | |
| 2703 * of unique reservation keys available to be returned. | |
| 2704 * | |
| 2705 * If the device returns an additional length field that is less than or | |
| 2706 * equal to the allocation length of the buffer, then all the available | |
| 2707 * keys registered were returned by the device. Filter out the | |
| 2708 * duplicate keys and return all of the unique keys found and set the | |
| 2709 * additional length field equal to the data bytes of the reservation | |
| 2710 * keys to be returned. | |
| 2711 */ | |
|
7201
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
|
2712 |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2713 #define VHCI_PRIN_HEADER_SZ (sizeof (prin->length) + sizeof (prin->generation)) |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2714 |
| 4851 | 2715 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
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changeset
|
2716 vhci_do_prin(struct vhci_pkt **intr_vpkt) |
| 4851 | 2717 { |
|
7201
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2718 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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changeset
|
2719 struct vhci_pkt *vpkt = *intr_vpkt; |
| 4851 | 2720 vhci_prin_readkeys_t *prin; |
|
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
|
2721 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
|
2722 struct scsi_vhci *vhci = ADDR2VHCI(&vpkt->vpkt_tgt_pkt->pkt_address); |
| 4851 | 2723 |
| 2724 struct buf *new_bp = NULL; | |
| 2725 struct scsi_pkt *new_pkt = NULL; | |
| 2726 struct vhci_pkt *new_vpkt = NULL; | |
|
7201
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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changeset
|
2727 uint32_t needed_length; |
| 4851 | 2728 int rval = VHCI_CMD_CMPLT; |
| 2729 uint32_t prin_length = 0; | |
| 2730 uint32_t svl_prin_length = 0; | |
| 2731 | |
|
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
|
2732 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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parents:
7191
diff
changeset
|
2733 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
|
2734 ASSERT(svp); |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2735 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
|
2736 ASSERT(vlun); |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2737 |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2738 /* |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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7191
diff
changeset
|
2739 * 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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7191
diff
changeset
|
2740 * 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
|
2741 * 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
|
2742 * 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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7191
diff
changeset
|
2743 * 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
|
2744 */ |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2745 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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parents:
7191
diff
changeset
|
2746 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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7191
diff
changeset
|
2747 goto exit; |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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parents:
7191
diff
changeset
|
2748 } |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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7191
diff
changeset
|
2749 |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2750 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
|
2751 /* |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2752 * 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
|
2753 */ |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2754 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
|
2755 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
|
2756 } else { |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2757 /* |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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7191
diff
changeset
|
2758 * 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"
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diff
changeset
|
2759 */ |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2760 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
|
2761 vpkt->vpkt_tgt_init_bp->b_un.b_daddr; |
| 4851 | 2762 } |
| 2763 | |
| 2764 if (prin == NULL) { | |
| 2765 VHCI_DEBUG(5, (CE_WARN, NULL, | |
| 2766 "vhci_do_prin: bp_mapin_common failed.")); | |
| 2767 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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diff
changeset
|
2768 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
|
2769 } |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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7191
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 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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diff
changeset
|
2772 |
|
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 /* |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2774 * 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
|
2775 * 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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diff
changeset
|
2776 * 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"
rralphs
parents:
7191
diff
changeset
|
2777 * 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
parents:
7191
diff
changeset
|
2778 * 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
parents:
7191
diff
changeset
|
2779 * 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"
rralphs
parents:
7191
diff
changeset
|
2780 * 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"
rralphs
parents:
7191
diff
changeset
|
2781 * 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
parents:
7191
diff
changeset
|
2782 */ |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2783 |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2784 |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2785 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
parents:
7191
diff
changeset
|
2786 VHCI_DEBUG(5, (CE_NOTE, NULL, |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2787 "vhci_do_prin: Device returned invalid " |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2788 "length 0x%x\n", prin_length)); |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2789 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
|
2790 goto fail; |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2791 } |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2792 needed_length = prin_length + VHCI_PRIN_HEADER_SZ; |
| 4851 | 2793 |
| 2794 /* | |
| 2795 * If prin->length is greater than the byte count allocated in the | |
| 2796 * original buffer, then resend the request with enough buffer | |
| 2797 * allocated to get all of the available registered keys. | |
| 2798 */ | |
|
7201
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2799 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"
rralphs
parents:
7191
diff
changeset
|
2800 (vpkt->vpkt_org_vpkt == NULL)) { |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2801 |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2802 new_pkt = vhci_create_retry_pkt(vpkt); |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2803 if (new_pkt == NULL) { |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2804 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
|
2805 goto fail; |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2806 } |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2807 new_vpkt = TGTPKT2VHCIPKT(new_pkt); |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2808 |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2809 /* |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2810 * This is the buf with buffer pointer |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2811 * where the prin readkeys will be |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2812 * returned from the device |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2813 */ |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2814 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"
rralphs
parents:
7191
diff
changeset
|
2815 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"
rralphs
parents:
7191
diff
changeset
|
2816 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"
rralphs
parents:
7191
diff
changeset
|
2817 if (new_bp) { |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2818 scsi_free_consistent_buf(new_bp); |
| 4851 | 2819 } |
|
7201
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2820 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"
rralphs
parents:
7191
diff
changeset
|
2821 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
|
2822 goto fail; |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2823 } |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2824 new_bp->b_bcount = needed_length; |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2825 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"
rralphs
parents:
7191
diff
changeset
|
2826 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"
rralphs
parents:
7191
diff
changeset
|
2827 |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2828 rval = VHCI_CMD_RETRY; |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2829 |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2830 new_vpkt->vpkt_tgt_init_bp = new_bp; |
| 4851 | 2831 } |
| 2832 | |
| 2833 if (rval == VHCI_CMD_RETRY) { | |
|
7201
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2834 |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2835 /* |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2836 * There were more keys then the original request asked for. |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2837 */ |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2838 mdi_pathinfo_t *path_holder = vpkt->vpkt_path; |
| 4851 | 2839 |
| 2840 /* | |
| 2841 * Release the old path because it does not matter which path | |
| 2842 * this command is sent down. This allows the normal bind | |
| 2843 * transport mechanism to be used. | |
| 2844 */ | |
|
6941
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
rralphs
parents:
6777
diff
changeset
|
2845 if (vpkt->vpkt_path != NULL) { |
|
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
rralphs
parents:
6777
diff
changeset
|
2846 mdi_rele_path(vpkt->vpkt_path); |
|
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
rralphs
parents:
6777
diff
changeset
|
2847 vpkt->vpkt_path = NULL; |
| 4851 | 2848 } |
| 2849 | |
| 2850 /* | |
| 2851 * Dispatch the retry command | |
| 2852 */ | |
| 2853 if (taskq_dispatch(vhci->vhci_taskq, vhci_dispatch_scsi_start, | |
| 2854 (void *) new_vpkt, KM_NOSLEEP) == NULL) { | |
|
7201
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2855 if (path_holder) { |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2856 vpkt->vpkt_path = path_holder; |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2857 mdi_hold_path(path_holder); |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2858 } |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2859 scsi_free_consistent_buf(new_bp); |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2860 vhci_scsi_destroy_pkt(&new_pkt->pkt_address, new_pkt); |
| 4851 | 2861 rval = VHCI_CMD_ERROR; |
|
7201
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2862 goto fail; |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2863 } |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2864 |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2865 /* |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2866 * 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
parents:
7191
diff
changeset
|
2867 * 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
parents:
7191
diff
changeset
|
2868 * 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"
rralphs
parents:
7191
diff
changeset
|
2869 * 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"
rralphs
parents:
7191
diff
changeset
|
2870 * 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
parents:
7191
diff
changeset
|
2871 */ |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2872 VHCI_DECR_PATH_CMDCOUNT(svp); |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2873 goto exit; |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2874 |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2875 } |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2876 |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2877 if (rval == VHCI_CMD_CMPLT) { |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2878 /* |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2879 * 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
parents:
7191
diff
changeset
|
2880 * packet returns. |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2881 */ |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2882 int new; |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2883 int old; |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2884 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"
rralphs
parents:
7191
diff
changeset
|
2885 |
| 4851 | 2886 VHCI_DEBUG(4, (CE_NOTE, NULL, "vhci_do_prin: %d keys read\n", |
|
7201
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
parents:
7191
diff
changeset
|
2887 num_keys)); |
| 4851 | 2888 |
| 2889 #ifdef DEBUG | |
| 2890 VHCI_DEBUG(5, (CE_NOTE, NULL, "vhci_do_prin: from storage\n")); | |
| 2891 if (vhci_debug == 5) | |
|
7201
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
rralphs
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|
2892 vhci_print_prin_keys(prin, num_keys); |
| 4851 | 2893 VHCI_DEBUG(5, (CE_NOTE, NULL, |
| 2894 "vhci_do_prin: MPxIO old keys:\n")); | |
| 2895 if (vhci_debug == 5) | |
|
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|
2896 vhci_print_prin_keys(&vlun->svl_prin, num_keys); |
| 4851 | 2897 #endif |
| 2898 | |
| 2899 /* | |
| 2900 * Filter out all duplicate keys returned from the device | |
| 2901 * We know that we use a different key for every host, so we | |
| 2902 * can simply strip out duplicates. Otherwise we would need to | |
| 2903 * do more bookkeeping to figure out which keys to strip out. | |
| 2904 */ | |
| 2905 | |
| 2906 new = 0; | |
| 2907 | |
|
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|
2908 /* |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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|
2909 * 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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|
2910 */ |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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|
2911 if (num_keys > 0) { |
| 4851 | 2912 vlun->svl_prin.keylist[0] = prin->keylist[0]; |
| 2913 new++; | |
| 2914 } | |
| 2915 | |
|
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6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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|
2916 /* |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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|
2917 * find next unique key. |
|
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6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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|
2918 */ |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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|
2919 for (old = 1; old < num_keys; old++) { |
| 4851 | 2920 int j; |
| 2921 int match = 0; | |
|
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|
2922 |
|
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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|
2923 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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|
2924 break; |
| 4851 | 2925 for (j = 0; j < new; j++) { |
| 2926 if (bcmp(&prin->keylist[old], | |
| 2927 &vlun->svl_prin.keylist[j], | |
| 2928 sizeof (mhioc_resv_key_t)) == 0) { | |
| 2929 match = 1; | |
| 2930 break; | |
| 2931 } | |
| 2932 } | |
| 2933 if (!match) { | |
| 2934 vlun->svl_prin.keylist[new] = | |
| 2935 prin->keylist[old]; | |
| 2936 new++; | |
| 2937 } | |
| 2938 } | |
| 2939 | |
|
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6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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|
2940 /* Stored Big Endian */ |
| 4851 | 2941 vlun->svl_prin.generation = prin->generation; |
|
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|
2942 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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|
2943 /* Stored Big Endian */ |
| 4851 | 2944 vlun->svl_prin.length = BE_32(svl_prin_length); |
|
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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
|
2945 svl_prin_length += VHCI_PRIN_HEADER_SZ; |
| 4851 | 2946 |
| 2947 /* | |
| 2948 * If we arrived at this point after issuing a retry, make sure | |
| 2949 * that we put everything back the way it originally was so | |
| 2950 * that the target driver can complete the command correctly. | |
| 2951 */ | |
|
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6459247 scsi_vhci does not return correct value for dma-max property
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|
2952 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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|
2953 new_bp = vpkt->vpkt_tgt_init_bp; |
| 4851 | 2954 |
| 2955 scsi_free_consistent_buf(new_bp); | |
| 2956 | |
|
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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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|
2957 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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diff
changeset
|
2958 *intr_vpkt = vpkt; |
| 4851 | 2959 |
| 2960 /* | |
| 2961 * Make sure the original buffer is mapped into kernel | |
| 2962 * space before we try to copy the filtered keys into | |
| 2963 * it. | |
| 2964 */ | |
| 2965 prin = (vhci_prin_readkeys_t *)bp_mapin_common( | |
|
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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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|
2966 vpkt->vpkt_tgt_init_bp, VM_NOSLEEP); |
| 4851 | 2967 } |
| 2968 | |
| 2969 /* | |
| 2970 * Now copy the desired number of prin keys into the original | |
| 2971 * target buffer. | |
| 2972 */ | |
|
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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
|
2973 if (svl_prin_length <= vpkt->vpkt_tgt_init_bp->b_bcount) { |
| 4851 | 2974 /* |
| 2975 * It is safe to return all of the available unique | |
| 2976 * keys | |
| 2977 */ | |
|
7201
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
|
2978 bcopy(&vlun->svl_prin, prin, svl_prin_length); |
| 4851 | 2979 } else { |
| 2980 /* | |
| 2981 * Not all of the available keys were requested by the | |
| 2982 * original command. | |
| 2983 */ | |
| 2984 bcopy(&vlun->svl_prin, prin, | |
|
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6459247 scsi_vhci does not return correct value for dma-max property
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diff
changeset
|
2985 vpkt->vpkt_tgt_init_bp->b_bcount); |
| 4851 | 2986 } |
| 2987 #ifdef DEBUG | |
| 2988 VHCI_DEBUG(5, (CE_NOTE, NULL, | |
| 2989 "vhci_do_prin: To Application:\n")); | |
| 2990 if (vhci_debug == 5) | |
| 2991 vhci_print_prin_keys(prin, new); | |
| 2992 VHCI_DEBUG(5, (CE_NOTE, NULL, | |
| 2993 "vhci_do_prin: MPxIO new keys:\n")); | |
| 2994 if (vhci_debug == 5) | |
| 2995 vhci_print_prin_keys(&vlun->svl_prin, new); | |
| 2996 #endif | |
| 2997 } | |
|
7201
0259de900d45
6625553 BAD TRAP: type=31 rp=2a100297730 addr=0 mmu_fsr=0 occurred in module "genunix"
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diff
changeset
|
2998 fail: |
| 4851 | 2999 if (rval == VHCI_CMD_ERROR) { |
| 3000 /* | |
| 3001 * If we arrived at this point after issuing a | |
| 3002 * retry, make sure that we put everything back | |
| 3003 * the way it originally was so that ssd can | |
| 3004 * complete the command correctly. | |
| 3005 */ | |
| 3006 | |
|
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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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|
3007 if (vpkt->vpkt_org_vpkt != NULL) { |
|
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
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diff
changeset
|
3008 new_bp = vpkt->vpkt_tgt_init_bp; |
| 4851 | 3009 if (new_bp != NULL) { |
| 3010 scsi_free_consistent_buf(new_bp); | |
| 3011 } | |
| 3012 | |
|
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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|
3013 new_vpkt = vpkt; |
|
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
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6777
diff
changeset
|
3014 vpkt = vpkt->vpkt_org_vpkt; |
| 4851 | 3015 |
| 3016 vhci_scsi_destroy_pkt(&svp->svp_psd->sd_address, | |
| 3017 new_vpkt->vpkt_tgt_pkt); | |
| 3018 } | |
| 3019 | |
| 3020 /* | |
| 3021 * Mark this command completion as having an error so that | |
| 3022 * ssd will retry the command. | |
| 3023 */ | |
| 3024 | |
|
6941
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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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|
3025 vpkt->vpkt_tgt_pkt->pkt_reason = CMD_ABORTED; |
|
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
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diff
changeset
|
3026 vpkt->vpkt_tgt_pkt->pkt_statistics |= STAT_ABORTED; |
| 4851 | 3027 |
| 3028 rval = VHCI_CMD_CMPLT; | |
| 3029 } | |
|
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
|
3030 exit: |
| 4851 | 3031 /* |
| 3032 * Make sure that the semaphore is only released once. | |
| 3033 */ | |
| 3034 if (rval == VHCI_CMD_CMPLT) { | |
| 3035 sema_v(&vlun->svl_pgr_sema); | |
| 3036 } | |
| 3037 | |
| 3038 return (rval); | |
| 3039 } | |
| 3040 | |
| 3041 static void | |
| 3042 vhci_intr(struct scsi_pkt *pkt) | |
| 3043 { | |
| 3044 struct vhci_pkt *vpkt = (struct vhci_pkt *)pkt->pkt_private; | |
| 3045 struct scsi_pkt *tpkt; | |
| 3046 scsi_vhci_priv_t *svp; | |
| 3047 scsi_vhci_lun_t *vlun; | |
| 3048 int rval, held; | |
| 3049 struct scsi_failover_ops *fops; | |
| 3050 struct scsi_extended_sense *sns; | |
| 3051 mdi_pathinfo_t *lpath; | |
| 3052 static char *timeout_err = "Command Timeout"; | |
| 3053 static char *parity_err = "Parity Error"; | |
| 3054 char *err_str = NULL; | |
| 3055 dev_info_t *vdip, *cdip, *pdip; | |
| 3056 char *cpath, *dpath; | |
| 3057 | |
| 3058 ASSERT(vpkt != NULL); | |
| 3059 tpkt = vpkt->vpkt_tgt_pkt; | |
| 3060 ASSERT(tpkt != NULL); | |
| 3061 svp = (scsi_vhci_priv_t *)mdi_pi_get_vhci_private(vpkt->vpkt_path); | |
| 3062 ASSERT(svp != NULL); | |
| 3063 vlun = svp->svp_svl; | |
| 3064 ASSERT(vlun != NULL); | |
| 3065 lpath = vpkt->vpkt_path; | |
| 3066 | |
| 3067 /* | |
| 3068 * sync up the target driver's pkt with the pkt that | |
| 3069 * we actually used | |
| 3070 */ | |
| 3071 *(tpkt->pkt_scbp) = *(pkt->pkt_scbp); | |
| 3072 tpkt->pkt_resid = pkt->pkt_resid; | |
| 3073 tpkt->pkt_state = pkt->pkt_state; | |
| 3074 tpkt->pkt_statistics = pkt->pkt_statistics; | |
| 3075 tpkt->pkt_reason = pkt->pkt_reason; | |
| 3076 | |
|
6640
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diff
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|
3077 /* Return path_instance information back to the target driver. */ |
|
c92ca9b95b9c
PSARC/2007/522 Disk enumeration for Sun Fire X4200 and X4200 M2
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diff
changeset
|
3078 if (scsi_pkt_allocated_correctly(tpkt)) { |
|
c92ca9b95b9c
PSARC/2007/522 Disk enumeration for Sun Fire X4200 and X4200 M2
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diff
changeset
|
3079 if (scsi_pkt_allocated_correctly(pkt)) { |
|
c92ca9b95b9c
PSARC/2007/522 Disk enumeration for Sun Fire X4200 and X4200 M2
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diff
changeset
|
3080 /* |
|
c92ca9b95b9c
PSARC/2007/522 Disk enumeration for Sun Fire X4200 and X4200 M2
cth
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diff
changeset
|
3081 * If both packets were correctly allocated, |
|
c92ca9b95b9c
PSARC/2007/522 Disk enumeration for Sun Fire X4200 and X4200 M2
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diff
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|
3082 * 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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|
3083 */ |
|
c92ca9b95b9c
PSARC/2007/522 Disk enumeration for Sun Fire X4200 and X4200 M2
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diff
changeset
|
3084 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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6042
diff
changeset
|
3085 } else { |
|
c92ca9b95b9c
PSARC/2007/522 Disk enumeration for Sun Fire X4200 and X4200 M2
cth
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6042
diff
changeset
|
3086 /* Otherwise return path of pHCI we used */ |
|
c92ca9b95b9c
PSARC/2007/522 Disk enumeration for Sun Fire X4200 and X4200 M2
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diff
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|
3087 tpkt->pkt_path_instance = |
|
c92ca9b95b9c
PSARC/2007/522 Disk enumeration for Sun Fire X4200 and X4200 M2
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diff
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|
3088 mdi_pi_get_path_instance(lpath); |
|
c92ca9b95b9c
PSARC/2007/522 Disk enumeration for Sun Fire X4200 and X4200 M2
cth
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6042
diff
changeset
|
3089 } |
|
c92ca9b95b9c
PSARC/2007/522 Disk enumeration for Sun Fire X4200 and X4200 M2
cth
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diff
changeset
|
3090 } |
|
c92ca9b95b9c
PSARC/2007/522 Disk enumeration for Sun Fire X4200 and X4200 M2
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diff
changeset
|
3091 |
| 4851 | 3092 if (pkt->pkt_cdbp[0] == SCMD_PROUT && |
| 3093 ((pkt->pkt_cdbp[1] & 0x1f) == VHCI_PROUT_REGISTER) || | |
| 3094 ((pkt->pkt_cdbp[1] & 0x1f) == VHCI_PROUT_R_AND_IGNORE)) { | |
| 3095 if ((SCBP_C(pkt) != STATUS_GOOD) || | |
| 3096 (pkt->pkt_reason != CMD_CMPLT)) { | |
| 3097 sema_v(&vlun->svl_pgr_sema); | |
| 3098 } | |
| 3099 } else if (pkt->pkt_cdbp[0] == SCMD_PRIN) { | |
| 3100 if (pkt->pkt_reason != CMD_CMPLT || | |
| 3101 (SCBP_C(pkt) != STATUS_GOOD)) { | |
| 3102 sema_v(&vlun->svl_pgr_sema); | |
| 3103 } | |
| 3104 } | |
| 3105 | |
| 3106 switch (pkt->pkt_reason) { | |
| 3107 case CMD_CMPLT: | |
| 3108 /* | |
| 3109 * cmd completed successfully, check for scsi errors | |
| 3110 */ | |
| 3111 switch (*(pkt->pkt_scbp)) { | |
| 3112 case STATUS_CHECK: | |
| 3113 if (pkt->pkt_state & STATE_ARQ_DONE) { | |
| 3114 sns = &(((struct scsi_arq_status *)(uintptr_t) | |
| 3115 (pkt->pkt_scbp))->sts_sensedata); | |
| 3116 fops = vlun->svl_fops; | |
| 3117 ASSERT(fops != NULL); | |
| 3118 VHCI_DEBUG(4, (CE_NOTE, NULL, "vhci_intr: " | |
| 3119 "Received sns key %x esc %x escq %x\n", | |
| 3120 sns->es_key, sns->es_add_code, | |
| 3121 sns->es_qual_code)); | |
| 3122 | |
| 3123 if (vlun->svl_waiting_for_activepath == 1) { | |
| 3124 /* | |
| 3125 * if we are here it means we are | |
| 3126 * in the midst of a probe/attach | |
| 3127 * through a passive path; this | |
| 3128 * case is exempt from sense analysis | |
| 3129 * for detection of ext. failover | |
| 3130 * because that would unnecessarily | |
| 3131 * increase attach time. | |
| 3132 */ | |
| 3133 bcopy(pkt->pkt_scbp, tpkt->pkt_scbp, | |
| 3134 vpkt->vpkt_tgt_init_scblen); | |
| 3135 break; | |
| 3136 } | |
| 3137 if (sns->es_add_code == VHCI_SCSI_PERR) { | |
| 3138 /* | |
| 3139 * parity error | |
| 3140 */ | |
| 3141 err_str = parity_err; | |
| 3142 bcopy(pkt->pkt_scbp, tpkt->pkt_scbp, | |
| 3143 vpkt->vpkt_tgt_init_scblen); | |
| 3144 break; | |
| 3145 } | |
|
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|
3146 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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|
3147 sns, vlun->svl_fops_ctpriv); |
| 4851 | 3148 if ((rval == SCSI_SENSE_NOFAILOVER) || |
| 3149 (rval == SCSI_SENSE_UNKNOWN) || | |
| 3150 (rval == SCSI_SENSE_NOT_READY)) { | |
| 3151 bcopy(pkt->pkt_scbp, tpkt->pkt_scbp, | |
| 3152 vpkt->vpkt_tgt_init_scblen); | |
| 3153 break; | |
| 3154 } else if (rval == SCSI_SENSE_STATE_CHANGED) { | |
| 3155 struct scsi_vhci *vhci; | |
| 3156 vhci = ADDR2VHCI(&tpkt->pkt_address); | |
| 3157 VHCI_HOLD_LUN(vlun, VH_NOSLEEP, held); | |
| 3158 if (!held) { | |
| 3159 /* | |
| 3160 * looks like some other thread | |
| 3161 * has already detected this | |
| 3162 * condition | |
| 3163 */ | |
| 3164 tpkt->pkt_state &= | |
| 3165 ~STATE_ARQ_DONE; | |
| 3166 *(tpkt->pkt_scbp) = | |
| 3167 STATUS_BUSY; | |
| 3168 break; | |
| 3169 } | |
| 3170 (void) taskq_dispatch( | |
| 3171 vhci->vhci_update_pathstates_taskq, | |
| 3172 vhci_update_pathstates, | |
| 3173 (void *)vlun, KM_SLEEP); | |
| 3174 } else { | |
| 3175 /* | |
| 3176 * externally initiated failover | |
| 3177 * has occurred or is in progress | |
| 3178 */ | |
| 3179 VHCI_HOLD_LUN(vlun, VH_NOSLEEP, held); | |
| 3180 if (!held) { | |
| 3181 /* | |
| 3182 * looks like some other thread | |
| 3183 * has already detected this | |
| 3184 * condition | |
| 3185 */ | |
| 3186 tpkt->pkt_state &= | |
| 3187 ~STATE_ARQ_DONE; | |
| 3188 *(tpkt->pkt_scbp) = | |
| 3189 STATUS_BUSY; | |
| 3190 break; | |
| 3191 } else { | |
| 3192 rval = vhci_handle_ext_fo | |
| 3193 (pkt, rval); | |
| 3194 if (rval == BUSY_RETURN) { | |
| 3195 tpkt->pkt_state &= | |
| 3196 ~STATE_ARQ_DONE; | |
| 3197 *(tpkt->pkt_scbp) = | |
| 3198 STATUS_BUSY; | |
| 3199 break; | |
| 3200 } | |
| 3201 bcopy(pkt->pkt_scbp, | |
| 3202 tpkt->pkt_scbp, | |
| 3203 vpkt->vpkt_tgt_init_scblen); | |
| 3204 break; | |
| 3205 } | |
| 3206 } | |
| 3207 } | |
| 3208 break; | |
| 3209 | |
| 3210 /* | |
| 3211 * If this is a good SCSI-II RELEASE cmd completion then restore | |
| 3212 * the load balancing policy and reset VLUN_RESERVE_ACTIVE_FLG. | |
| 3213 * If this is a good SCSI-II RESERVE cmd completion then set | |
| 3214 * VLUN_RESERVE_ACTIVE_FLG. | |
| 3215 */ | |
| 3216 case STATUS_GOOD: | |
| 3217 if ((pkt->pkt_cdbp[0] == SCMD_RELEASE) || | |
| 3218 (pkt->pkt_cdbp[0] == SCMD_RELEASE_G1)) { | |
| 3219 (void) mdi_set_lb_policy(vlun->svl_dip, | |
| 3220 vlun->svl_lb_policy_save); | |
| 3221 vlun->svl_flags &= ~VLUN_RESERVE_ACTIVE_FLG; | |
| 3222 VHCI_DEBUG(1, (CE_WARN, NULL, | |
| 3223 "!vhci_intr: vlun 0x%p release path 0x%p", | |
| 3224 (void *)vlun, (void *)vpkt->vpkt_path)); | |
| 3225 } | |
| 3226 | |
| 3227 if ((pkt->pkt_cdbp[0] == SCMD_RESERVE) || | |
| 3228 (pkt->pkt_cdbp[0] == SCMD_RESERVE_G1)) { | |
| 3229 vlun->svl_flags |= VLUN_RESERVE_ACTIVE_FLG; | |
| 3230 vlun->svl_resrv_pip = vpkt->vpkt_path; | |
| 3231 VHCI_DEBUG(1, (CE_WARN, NULL, | |
| 3232 "!vhci_intr: vlun 0x%p reserved path 0x%p", | |
| 3233 (void *)vlun, (void *)vpkt->vpkt_path)); | |
| 3234 } | |
| 3235 break; | |
| 3236 | |
| 3237 case STATUS_RESERVATION_CONFLICT: | |
| 3238 VHCI_DEBUG(1, (CE_WARN, NULL, | |
| 3239 "!vhci_intr: vlun 0x%p " | |
| 3240 "reserve conflict on path 0x%p", | |
| 3241 (void *)vlun, (void *)vpkt->vpkt_path)); | |
| 3242 /* FALLTHROUGH */ | |
| 3243 default: | |
| 3244 break; | |
| 3245 } | |
| 3246 | |
| 3247 /* | |
| 3248 * Update I/O completion statistics for the path | |
| 3249 */ | |
| 3250 mdi_pi_kstat_iosupdate(vpkt->vpkt_path, vpkt->vpkt_tgt_init_bp); | |
| 3251 | |
| 3252 /* | |
| 3253 * Command completed successfully, release the dma binding and | |
| 3254 * destroy the transport side of the packet. | |
| 3255 */ | |
|
7201
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diff
changeset
|
3256 if ((pkt->pkt_cdbp[0] == SCMD_PROUT) && |
| 4851 | 3257 (((pkt->pkt_cdbp[1] & 0x1f) == VHCI_PROUT_REGISTER) || |
|
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|
3258 ((pkt->pkt_cdbp[1] & 0x1f) == VHCI_PROUT_R_AND_IGNORE))) { |
| 4851 | 3259 if (SCBP_C(pkt) == STATUS_GOOD) { |
| 3260 ASSERT(vlun->svl_taskq); | |
| 3261 svp->svp_last_pkt_reason = pkt->pkt_reason; | |
| 3262 (void) taskq_dispatch(vlun->svl_taskq, | |
| 3263 vhci_run_cmd, pkt, KM_SLEEP); | |
| 3264 return; | |
| 3265 } | |
| 3266 } | |
| 3267 if ((SCBP_C(pkt) == STATUS_GOOD) && | |
|
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changeset
|
3268 (pkt->pkt_cdbp[0] == SCMD_PRIN) && vpkt->vpkt_tgt_init_bp) { |
| 4851 | 3269 /* |
| 3270 * If the action (value in byte 1 of the cdb) is zero, | |
| 3271 * we're reading keys, and that's the only condition | |
| 3272 * where we need to be concerned with filtering keys | |
| 3273 * and potential retries. Otherwise, we simply signal | |
| 3274 * the semaphore and move on. | |
| 3275 */ | |
| 3276 if (pkt->pkt_cdbp[1] == 0) { | |
| 3277 /* | |
| 3278 * If this is the completion of an internal | |
| 3279 * retry then we need to make sure that the | |
| 3280 * pkt and tpkt pointers are readjusted so | |
| 3281 * the calls to scsi_destroy_pkt and pkt_comp | |
| 3282 * below work * correctly. | |
| 3283 */ | |
| 3284 if (vpkt->vpkt_org_vpkt != NULL) { | |
| 3285 pkt = vpkt->vpkt_org_vpkt->vpkt_hba_pkt; | |
| 3286 tpkt = vpkt->vpkt_org_vpkt-> | |
| 3287 vpkt_tgt_pkt; | |
| 3288 | |
| 3289 /* | |
| 3290 * If this command was issued through | |
| 3291 * the taskq then we need to clear | |
| 3292 * this flag for proper processing in | |
| 3293 * the case of a retry from the target | |
| 3294 * driver. | |
| 3295 */ | |
| 3296 vpkt->vpkt_state &= | |
| 3297 ~VHCI_PKT_THRU_TASKQ; | |
| 3298 } | |
| 3299 | |
| 3300 /* | |
| 3301 * if vhci_do_prin returns VHCI_CMD_CMPLT then | |
| 3302 * vpkt will contain the address of the | |
| 3303 * original vpkt | |
| 3304 */ | |
|
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
|
3305 if (vhci_do_prin(&vpkt) == VHCI_CMD_RETRY) { |
| 4851 | 3306 /* |
| 3307 * The command has been resent to get | |
| 3308 * all the keys from the device. Don't | |
| 3309 * complete the command with ssd until | |
| 3310 * the retry completes. | |
| 3311 */ | |
| 3312 return; | |
| 3313 } | |
| 3314 } else { | |
| 3315 sema_v(&vlun->svl_pgr_sema); | |
| 3316 } | |
| 3317 } | |
| 3318 | |
| 3319 break; | |
| 3320 | |
| 3321 case CMD_TIMEOUT: | |
| 3322 if ((pkt->pkt_statistics & | |
| 3323 (STAT_BUS_RESET|STAT_DEV_RESET|STAT_ABORTED)) == 0) { | |
| 3324 | |
| 3325 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
| 3326 "!scsi vhci timeout invoked\n")); | |
| 3327 | |
| 3328 (void) vhci_recovery_reset(vlun, &pkt->pkt_address, | |
| 3329 FALSE, VHCI_DEPTH_ALL); | |
| 3330 } | |
| 3331 MDI_PI_ERRSTAT(lpath, MDI_PI_TRANSERR); | |
| 3332 tpkt->pkt_statistics |= STAT_ABORTED; | |
| 3333 err_str = timeout_err; | |
| 3334 break; | |
| 3335 | |
| 3336 case CMD_TRAN_ERR: | |
| 3337 /* | |
| 3338 * This status is returned if the transport has sent the cmd | |
| 3339 * down the link to the target and then some error occurs. | |
| 3340 * In case of SCSI-II RESERVE cmd, we don't know if the | |
| 3341 * reservation been accepted by the target or not, so we need | |
| 3342 * to clear the reservation. | |
| 3343 */ | |
| 3344 if ((pkt->pkt_cdbp[0] == SCMD_RESERVE) || | |
| 3345 (pkt->pkt_cdbp[0] == SCMD_RESERVE_G1)) { | |
| 3346 VHCI_DEBUG(1, (CE_NOTE, NULL, "!vhci_intr received" | |
| 3347 " cmd_tran_err for scsi-2 reserve cmd\n")); | |
| 3348 if (!vhci_recovery_reset(vlun, &pkt->pkt_address, | |
| 3349 TRUE, VHCI_DEPTH_TARGET)) { | |
| 3350 VHCI_DEBUG(1, (CE_WARN, NULL, | |
| 3351 "!vhci_intr cmd_tran_err reset failed!")); | |
| 3352 } | |
| 3353 } | |
| 3354 break; | |
| 3355 | |
| 3356 case CMD_DEV_GONE: | |
|
6941
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6777
diff
changeset
|
3357 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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|
3358 "cmd_dev_gone\n")); |
| 4851 | 3359 tpkt->pkt_reason = CMD_CMPLT; |
| 3360 tpkt->pkt_state = STATE_GOT_BUS | | |
| 3361 STATE_GOT_TARGET | STATE_SENT_CMD | | |
| 3362 STATE_GOT_STATUS; | |
| 3363 *(tpkt->pkt_scbp) = STATUS_BUSY; | |
| 3364 break; | |
| 3365 | |
| 3366 default: | |
| 3367 break; | |
| 3368 } | |
| 3369 | |
| 3370 /* | |
| 3371 * SCSI-II RESERVE cmd has been serviced by the lower layers clear | |
| 3372 * the flag so the lun is not QUIESCED any longer. | |
| 3373 * Also clear the VHCI_PKT_THRU_TASKQ flag, to ensure that if this pkt | |
| 3374 * is retried, a taskq shall again be dispatched to service it. Else | |
| 3375 * it may lead to a system hang if the retry is within interrupt | |
| 3376 * context. | |
| 3377 */ | |
| 3378 if ((pkt->pkt_cdbp[0] == SCMD_RESERVE) || | |
| 3379 (pkt->pkt_cdbp[0] == SCMD_RESERVE_G1)) { | |
| 3380 vlun->svl_flags &= ~VLUN_QUIESCED_FLG; | |
| 3381 vpkt->vpkt_state &= ~VHCI_PKT_THRU_TASKQ; | |
| 3382 } | |
| 3383 | |
| 3384 /* | |
| 3385 * vpkt_org_vpkt should always be NULL here if the retry command | |
| 3386 * has been successfully processed. If vpkt_org_vpkt != NULL at | |
| 3387 * this point, it is an error so restore the original vpkt and | |
| 3388 * return an error to the target driver so it can retry the | |
| 3389 * command as appropriate. | |
| 3390 */ | |
| 3391 if (vpkt->vpkt_org_vpkt != NULL) { | |
| 3392 struct vhci_pkt *new_vpkt = vpkt; | |
| 3393 vpkt = vpkt->vpkt_org_vpkt; | |
| 3394 | |
| 3395 vhci_scsi_destroy_pkt(&svp->svp_psd->sd_address, | |
| 3396 new_vpkt->vpkt_tgt_pkt); | |
| 3397 | |
| 3398 /* | |
| 3399 * Mark this command completion as having an error so that | |
| 3400 * ssd will retry the command. | |
| 3401 */ | |
| 3402 vpkt->vpkt_tgt_pkt->pkt_reason = CMD_ABORTED; | |
| 3403 vpkt->vpkt_tgt_pkt->pkt_statistics |= STAT_ABORTED; | |
| 3404 | |
| 3405 pkt = vpkt->vpkt_hba_pkt; | |
| 3406 tpkt = vpkt->vpkt_tgt_pkt; | |
| 3407 } | |
| 3408 | |
| 3409 if ((err_str != NULL) && (pkt->pkt_reason != | |
| 3410 svp->svp_last_pkt_reason)) { | |
| 3411 cdip = vlun->svl_dip; | |
| 3412 pdip = mdi_pi_get_phci(vpkt->vpkt_path); | |
| 3413 vdip = ddi_get_parent(cdip); | |
| 3414 cpath = kmem_alloc(MAXPATHLEN, KM_SLEEP); | |
| 3415 dpath = kmem_alloc(MAXPATHLEN, KM_SLEEP); | |
| 3416 vhci_log(CE_WARN, vdip, "!%s (%s%d): %s on path %s (%s%d)", | |
| 3417 ddi_pathname(cdip, cpath), ddi_driver_name(cdip), | |
| 3418 ddi_get_instance(cdip), err_str, | |
| 3419 ddi_pathname(pdip, dpath), ddi_driver_name(pdip), | |
| 3420 ddi_get_instance(pdip)); | |
| 3421 kmem_free(cpath, MAXPATHLEN); | |
| 3422 kmem_free(dpath, MAXPATHLEN); | |
| 3423 } | |
| 3424 svp->svp_last_pkt_reason = pkt->pkt_reason; | |
| 3425 VHCI_DECR_PATH_CMDCOUNT(svp); | |
| 3426 | |
| 3427 /* | |
| 3428 * For PARTIAL_DMA, vhci should not free the path. | |
| 3429 * Target driver will call into vhci_scsi_dmafree or | |
| 3430 * destroy pkt to release this path. | |
| 3431 */ | |
| 3432 if ((vpkt->vpkt_flags & CFLAG_DMA_PARTIAL) == 0) { | |
| 3433 scsi_destroy_pkt(pkt); | |
| 3434 vpkt->vpkt_hba_pkt = NULL; | |
| 3435 if (vpkt->vpkt_path) { | |
| 3436 mdi_rele_path(vpkt->vpkt_path); | |
| 3437 vpkt->vpkt_path = NULL; | |
| 3438 } | |
| 3439 } | |
| 3440 | |
| 3441 if (tpkt->pkt_comp) { | |
| 3442 (*tpkt->pkt_comp)(tpkt); | |
| 3443 } | |
| 3444 } | |
| 3445 | |
| 3446 /* | |
| 3447 * two possibilities: (1) failover has completed | |
| 3448 * or (2) is in progress; update our path states for | |
| 3449 * the former case; for the latter case, | |
| 3450 * initiate a scsi_watch request to | |
| 3451 * determine when failover completes - vlun is HELD | |
| 3452 * until failover completes; BUSY is returned to upper | |
| 3453 * layer in both the cases | |
| 3454 */ | |
| 3455 static int | |
| 3456 vhci_handle_ext_fo(struct scsi_pkt *pkt, int fostat) | |
| 3457 { | |
| 3458 struct vhci_pkt *vpkt = (struct vhci_pkt *)pkt->pkt_private; | |
| 3459 struct scsi_pkt *tpkt; | |
| 3460 scsi_vhci_priv_t *svp; | |
| 3461 scsi_vhci_lun_t *vlun; | |
| 3462 struct scsi_vhci *vhci; | |
| 3463 scsi_vhci_swarg_t *swarg; | |
| 3464 char *path; | |
| 3465 | |
| 3466 ASSERT(vpkt != NULL); | |
| 3467 tpkt = vpkt->vpkt_tgt_pkt; | |
| 3468 ASSERT(tpkt != NULL); | |
| 3469 svp = (scsi_vhci_priv_t *)mdi_pi_get_vhci_private(vpkt->vpkt_path); | |
| 3470 ASSERT(svp != NULL); | |
| 3471 vlun = svp->svp_svl; | |
| 3472 ASSERT(vlun != NULL); | |
| 3473 ASSERT(VHCI_LUN_IS_HELD(vlun)); | |
| 3474 | |
| 3475 vhci = ADDR2VHCI(&tpkt->pkt_address); | |
| 3476 | |
| 3477 if (fostat == SCSI_SENSE_INACTIVE) { | |
| 3478 VHCI_DEBUG(1, (CE_NOTE, NULL, "!Failover " | |
| 3479 "detected for %s; updating path states...\n", | |
| 3480 vlun->svl_lun_wwn)); | |
| 3481 /* | |
| 3482 * set the vlun flag to indicate to the task that the target | |
| 3483 * port group needs updating | |
| 3484 */ | |
| 3485 vlun->svl_flags |= VLUN_UPDATE_TPG; | |
| 3486 (void) taskq_dispatch(vhci->vhci_update_pathstates_taskq, | |
| 3487 vhci_update_pathstates, (void *)vlun, KM_SLEEP); | |
| 3488 } else { | |
| 3489 path = kmem_alloc(MAXPATHLEN, KM_SLEEP); | |
| 3490 vhci_log(CE_NOTE, ddi_get_parent(vlun->svl_dip), | |
| 3491 "!%s (%s%d): Waiting for externally initiated failover " | |
| 3492 "to complete", ddi_pathname(vlun->svl_dip, path), | |
| 3493 ddi_driver_name(vlun->svl_dip), | |
| 3494 ddi_get_instance(vlun->svl_dip)); | |
| 3495 kmem_free(path, MAXPATHLEN); | |
| 3496 swarg = kmem_alloc(sizeof (*swarg), KM_NOSLEEP); | |
| 3497 if (swarg == NULL) { | |
| 3498 VHCI_DEBUG(1, (CE_NOTE, NULL, "!vhci_handle_ext_fo: " | |
| 3499 "request packet allocation for %s failed....\n", | |
| 3500 vlun->svl_lun_wwn)); | |
| 3501 VHCI_RELEASE_LUN(vlun); | |
| 3502 return (PKT_RETURN); | |
| 3503 } | |
| 3504 swarg->svs_svp = svp; | |
| 3505 swarg->svs_tos = ddi_get_time(); | |
| 3506 swarg->svs_pi = vpkt->vpkt_path; | |
| 3507 swarg->svs_release_lun = 0; | |
| 3508 swarg->svs_done = 0; | |
| 3509 /* | |
| 3510 * place a hold on the path...we don't want it to | |
| 3511 * vanish while scsi_watch is in progress | |
| 3512 */ | |
| 3513 mdi_hold_path(vpkt->vpkt_path); | |
| 3514 svp->svp_sw_token = scsi_watch_request_submit(svp->svp_psd, | |
| 3515 VHCI_FOWATCH_INTERVAL, SENSE_LENGTH, vhci_efo_watch_cb, | |
| 3516 (caddr_t)swarg); | |
| 3517 } | |
| 3518 return (BUSY_RETURN); | |
| 3519 } | |
| 3520 | |
| 3521 /* | |
| 3522 * vhci_efo_watch_cb: | |
| 3523 * Callback from scsi_watch request to check the failover status. | |
| 3524 * Completion is either due to successful failover or timeout. | |
| 3525 * Upon successful completion, vhci_update_path_states is called. | |
| 3526 * For timeout condition, vhci_efo_done is called. | |
| 3527 * Always returns 0 to scsi_watch to keep retrying till vhci_efo_done | |
| 3528 * terminates this request properly in a separate thread. | |
| 3529 */ | |
| 3530 | |
| 3531 static int | |
| 3532 vhci_efo_watch_cb(caddr_t arg, struct scsi_watch_result *resultp) | |
| 3533 { | |
| 3534 struct scsi_status *statusp = resultp->statusp; | |
| 3535 struct scsi_extended_sense *sensep = resultp->sensep; | |
| 3536 struct scsi_pkt *pkt = resultp->pkt; | |
| 3537 scsi_vhci_swarg_t *swarg; | |
| 3538 scsi_vhci_priv_t *svp; | |
| 3539 scsi_vhci_lun_t *vlun; | |
| 3540 struct scsi_vhci *vhci; | |
| 3541 dev_info_t *vdip; | |
| 3542 int rval, updt_paths; | |
| 3543 | |
| 3544 swarg = (scsi_vhci_swarg_t *)(uintptr_t)arg; | |
| 3545 svp = swarg->svs_svp; | |
| 3546 if (swarg->svs_done) { | |
| 3547 /* | |
| 3548 * Already completed failover or timedout. | |
| 3549 * Waiting for vhci_efo_done to terminate this scsi_watch. | |
| 3550 */ | |
| 3551 return (0); | |
| 3552 } | |
| 3553 | |
| 3554 ASSERT(svp != NULL); | |
| 3555 vlun = svp->svp_svl; | |
| 3556 ASSERT(vlun != NULL); | |
| 3557 ASSERT(VHCI_LUN_IS_HELD(vlun)); | |
| 3558 vlun->svl_efo_update_path = 0; | |
| 3559 vdip = ddi_get_parent(vlun->svl_dip); | |
| 3560 vhci = ddi_get_soft_state(vhci_softstate, | |
| 3561 ddi_get_instance(vdip)); | |
| 3562 | |
| 3563 updt_paths = 0; | |
| 3564 | |
| 3565 if (pkt->pkt_reason != CMD_CMPLT) { | |
| 3566 if ((ddi_get_time() - swarg->svs_tos) >= VHCI_EXTFO_TIMEOUT) { | |
| 3567 swarg->svs_release_lun = 1; | |
| 3568 goto done; | |
| 3569 } | |
| 3570 return (0); | |
| 3571 } | |
| 3572 if (*((unsigned char *)statusp) == STATUS_CHECK) { | |
|
6941
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parents:
6777
diff
changeset
|
3573 rval = vlun->svl_fops->sfo_analyze_sense(svp->svp_psd, sensep, |
|
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
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6777
diff
changeset
|
3574 vlun->svl_fops_ctpriv); |
| 4851 | 3575 switch (rval) { |
| 3576 /* | |
| 3577 * Only update path states in case path is definitely | |
| 3578 * inactive, or no failover occurred. For all other | |
| 3579 * check conditions continue pinging. A unexpected | |
| 3580 * check condition shouldn't cause pinging to complete | |
| 3581 * prematurely. | |
| 3582 */ | |
| 3583 case SCSI_SENSE_INACTIVE: | |
| 3584 case SCSI_SENSE_NOFAILOVER: | |
| 3585 updt_paths = 1; | |
| 3586 break; | |
| 3587 default: | |
| 3588 if ((ddi_get_time() - swarg->svs_tos) | |
| 3589 >= VHCI_EXTFO_TIMEOUT) { | |
| 3590 swarg->svs_release_lun = 1; | |
| 3591 goto done; | |
| 3592 } | |
| 3593 return (0); | |
| 3594 } | |
| 3595 } else if (*((unsigned char *)statusp) == | |
| 3596 STATUS_RESERVATION_CONFLICT) { | |
| 3597 updt_paths = 1; | |
| 3598 } else if ((*((unsigned char *)statusp)) & | |
| 3599 (STATUS_BUSY | STATUS_QFULL)) { | |
| 3600 return (0); | |
| 3601 } | |
| 3602 if ((*((unsigned char *)statusp) == STATUS_GOOD) || | |
| 3603 (updt_paths == 1)) { | |
| 3604 /* | |
| 3605 * we got here because we had detected an | |
| 3606 * externally initiated failover; things | |
| 3607 * have settled down now, so let's | |
| 3608 * start up a task to update the | |
| 3609 * path states and target port group | |
| 3610 */ | |
| 3611 vlun->svl_efo_update_path = 1; | |
| 3612 swarg->svs_done = 1; | |
| 3613 vlun->svl_swarg = swarg; | |
| 3614 vlun->svl_flags |= VLUN_UPDATE_TPG; | |
| 3615 (void) taskq_dispatch(vhci->vhci_update_pathstates_taskq, | |
| 3616 vhci_update_pathstates, (void *)vlun, | |
| 3617 KM_SLEEP); | |
| 3618 return (0); | |
| 3619 } | |
| 3620 if ((ddi_get_time() - swarg->svs_tos) >= VHCI_EXTFO_TIMEOUT) { | |
| 3621 swarg->svs_release_lun = 1; | |
| 3622 goto done; | |
| 3623 } | |
| 3624 return (0); | |
| 3625 done: | |
| 3626 swarg->svs_done = 1; | |
| 3627 (void) taskq_dispatch(vhci->vhci_taskq, | |
| 3628 vhci_efo_done, (void *)swarg, KM_SLEEP); | |
| 3629 return (0); | |
| 3630 } | |
| 3631 | |
| 3632 /* | |
| 3633 * vhci_efo_done: | |
| 3634 * cleanly terminates scsi_watch and free up resources. | |
| 3635 * Called as taskq function in vhci_efo_watch_cb for EFO timeout condition | |
| 3636 * or by vhci_update_path_states invoked during external initiated | |
| 3637 * failover completion. | |
| 3638 */ | |
| 3639 static void | |
| 3640 vhci_efo_done(void *arg) | |
| 3641 { | |
| 3642 scsi_vhci_lun_t *vlun; | |
| 3643 scsi_vhci_swarg_t *swarg = (scsi_vhci_swarg_t *)arg; | |
| 3644 scsi_vhci_priv_t *svp = swarg->svs_svp; | |
| 3645 ASSERT(svp); | |
| 3646 | |
| 3647 vlun = svp->svp_svl; | |
| 3648 ASSERT(vlun); | |
| 3649 | |
| 3650 /* Wait for clean termination of scsi_watch */ | |
| 3651 (void) scsi_watch_request_terminate(svp->svp_sw_token, | |
|
7191
174d749b3f22
6520112 simultaneous DKIOCSTATE calls causes panic
tl223370
parents:
7121
diff
changeset
|
3652 SCSI_WATCH_TERMINATE_ALL_WAIT); |
| 4851 | 3653 svp->svp_sw_token = NULL; |
| 3654 | |
| 3655 /* release path and freeup resources to indicate failover completion */ | |
| 3656 mdi_rele_path(swarg->svs_pi); | |
| 3657 if (swarg->svs_release_lun) { | |
| 3658 VHCI_RELEASE_LUN(vlun); | |
| 3659 } | |
| 3660 kmem_free((void *)swarg, sizeof (*swarg)); | |
| 3661 } | |
| 3662 | |
| 3663 /* | |
| 3664 * Update the path states | |
| 3665 * vlun should be HELD when this is invoked. | |
| 3666 * Calls vhci_efo_done to cleanup resources allocated for EFO. | |
| 3667 */ | |
| 3668 void | |
| 3669 vhci_update_pathstates(void *arg) | |
| 3670 { | |
| 3671 mdi_pathinfo_t *pip, *npip; | |
| 3672 dev_info_t *dip, *pdip; | |
| 3673 struct scsi_failover_ops *fo; | |
| 3674 struct scsi_vhci_priv *svp; | |
| 3675 struct scsi_device *psd; | |
| 3676 struct scsi_path_opinfo opinfo; | |
| 3677 char *pclass, *tptr; | |
| 3678 struct scsi_vhci_lun *vlun = (struct scsi_vhci_lun *)arg; | |
| 3679 int sps; /* mdi_select_path() status */ | |
| 3680 char *cpath, *dpath; | |
| 3681 struct scsi_vhci *vhci; | |
| 3682 struct scsi_pkt *pkt; | |
| 3683 struct buf *bp; | |
| 3684 int reserve_conflict = 0; | |
| 3685 | |
| 3686 ASSERT(VHCI_LUN_IS_HELD(vlun)); | |
| 3687 dip = vlun->svl_dip; | |
| 3688 pip = npip = NULL; | |
| 3689 | |
| 3690 vhci = ddi_get_soft_state(vhci_softstate, | |
| 3691 ddi_get_instance(ddi_get_parent(dip))); | |
| 3692 | |
| 3693 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
|
3694 MDI_SELECT_STANDBY_PATH | MDI_SELECT_NO_PREFERRED), NULL, &npip); |
| 4851 | 3695 if ((npip == NULL) || (sps != MDI_SUCCESS)) { |
| 3696 goto done; | |
| 3697 } | |
| 3698 | |
| 3699 fo = vlun->svl_fops; | |
| 3700 do { | |
| 3701 pip = npip; | |
| 3702 svp = (scsi_vhci_priv_t *)mdi_pi_get_vhci_private(pip); | |
| 3703 psd = svp->svp_psd; | |
|
6941
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
rralphs
parents:
6777
diff
changeset
|
3704 if (fo->sfo_path_get_opinfo(psd, &opinfo, |
| 4851 | 3705 vlun->svl_fops_ctpriv) != 0) { |
| 3706 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
|
3707 (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
|
3708 MDI_SELECT_NO_PREFERRED), pip, &npip); |
| 4851 | 3709 mdi_rele_path(pip); |
| 3710 continue; | |
| 3711 } | |
| 3712 | |
| 3713 if (mdi_prop_lookup_string(pip, "path-class", &pclass) != | |
| 3714 MDI_SUCCESS) { | |
| 3715 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
| 3716 "!vhci_update_pathstates: prop lookup failed for " | |
| 3717 "path 0x%p\n", (void *)pip)); | |
| 3718 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
|
3719 (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
|
3720 MDI_SELECT_NO_PREFERRED), pip, &npip); |
| 4851 | 3721 mdi_rele_path(pip); |
| 3722 continue; | |
| 3723 } | |
| 3724 | |
| 3725 /* | |
| 3726 * Need to update the "path-class" property | |
| 3727 * value in the device tree if different | |
| 3728 * from the existing value. | |
| 3729 */ | |
| 3730 if (strcmp(pclass, opinfo.opinfo_path_attr) != 0) { | |
| 3731 (void) mdi_prop_update_string(pip, "path-class", | |
| 3732 opinfo.opinfo_path_attr); | |
| 3733 } | |
| 3734 | |
| 3735 /* | |
| 3736 * Only change the state if needed. i.e. Don't call | |
| 3737 * mdi_pi_set_state to ONLINE a path if its already | |
| 3738 * ONLINE. Same for STANDBY paths. | |
| 3739 */ | |
| 3740 | |
| 3741 if ((opinfo.opinfo_path_state == SCSI_PATH_ACTIVE || | |
| 3742 opinfo.opinfo_path_state == SCSI_PATH_ACTIVE_NONOPT)) { | |
| 3743 if (!(MDI_PI_IS_ONLINE(pip))) { | |
| 3744 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
| 3745 "!vhci_update_pathstates: marking path" | |
| 3746 " 0x%p as ONLINE\n", (void *)pip)); | |
| 3747 pdip = mdi_pi_get_phci(pip); | |
| 3748 cpath = kmem_alloc(MAXPATHLEN, KM_SLEEP); | |
| 3749 dpath = kmem_alloc(MAXPATHLEN, KM_SLEEP); | |
| 3750 vhci_log(CE_NOTE, ddi_get_parent(dip), "!%s" | |
| 3751 " (%s%d): path %s (%s%d) target address %s" | |
| 3752 " is now ONLINE because of" | |
| 3753 " an externally initiated failover", | |
| 3754 ddi_pathname(dip, cpath), | |
| 3755 ddi_driver_name(dip), | |
| 3756 ddi_get_instance(dip), | |
| 3757 ddi_pathname(pdip, dpath), | |
| 3758 ddi_driver_name(pdip), | |
| 3759 ddi_get_instance(pdip), | |
| 3760 mdi_pi_get_addr(pip)); | |
| 3761 kmem_free(cpath, MAXPATHLEN); | |
| 3762 kmem_free(dpath, MAXPATHLEN); | |
| 3763 mdi_pi_set_state(pip, | |
| 3764 MDI_PATHINFO_STATE_ONLINE); | |
| 3765 mdi_pi_set_preferred(pip, | |
| 3766 opinfo.opinfo_preferred); | |
| 3767 tptr = kmem_alloc(strlen | |
| 3768 (opinfo.opinfo_path_attr)+1, KM_SLEEP); | |
| 3769 (void) strlcpy(tptr, opinfo.opinfo_path_attr, | |
| 3770 (strlen(opinfo.opinfo_path_attr)+1)); | |
| 3771 mutex_enter(&vlun->svl_mutex); | |
| 3772 if (vlun->svl_active_pclass != NULL) { | |
| 3773 kmem_free(vlun->svl_active_pclass, | |
| 3774 strlen(vlun->svl_active_pclass)+1); | |
| 3775 } | |
| 3776 vlun->svl_active_pclass = tptr; | |
| 3777 if (vlun->svl_waiting_for_activepath) { | |
| 3778 vlun->svl_waiting_for_activepath = 0; | |
| 3779 } | |
| 3780 mutex_exit(&vlun->svl_mutex); | |
| 3781 /* Check for Reservation Conflict */ | |
| 3782 bp = scsi_alloc_consistent_buf( | |
| 3783 &svp->svp_psd->sd_address, | |
| 3784 (struct buf *)NULL, DEV_BSIZE, B_READ, | |
| 3785 NULL, NULL); | |
| 3786 if (!bp) { | |
| 3787 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
| 3788 "vhci_update_pathstates: " | |
| 3789 "!No resources (buf)\n")); | |
| 3790 mdi_rele_path(pip); | |
| 3791 goto done; | |
| 3792 } | |
| 3793 pkt = scsi_init_pkt(&svp->svp_psd->sd_address, | |
| 3794 NULL, bp, CDB_GROUP1, | |
| 3795 sizeof (struct scsi_arq_status), 0, | |
| 3796 PKT_CONSISTENT, NULL, NULL); | |
| 3797 if (pkt) { | |
| 3798 (void) scsi_setup_cdb((union scsi_cdb *) | |
| 3799 (uintptr_t)pkt->pkt_cdbp, | |
| 3800 SCMD_READ, 1, 1, 0); | |
| 3801 pkt->pkt_time = 3*30; | |
| 3802 pkt->pkt_flags = FLAG_NOINTR; | |
|
6640
c92ca9b95b9c
PSARC/2007/522 Disk enumeration for Sun Fire X4200 and X4200 M2
cth
parents:
6042
diff
changeset
|
3803 pkt->pkt_path_instance = |
|
c92ca9b95b9c
PSARC/2007/522 Disk enumeration for Sun Fire X4200 and X4200 M2
cth
parents:
6042
diff
changeset
|
3804 mdi_pi_get_path_instance(pip); |
|
c92ca9b95b9c
PSARC/2007/522 Disk enumeration for Sun Fire X4200 and X4200 M2
cth
parents:
6042
diff
changeset
|
3805 |
| 4851 | 3806 if ((scsi_transport(pkt) == |
| 3807 TRAN_ACCEPT) && (pkt->pkt_reason | |
| 3808 == CMD_CMPLT) && (SCBP_C(pkt) == | |
| 3809 STATUS_RESERVATION_CONFLICT)) { | |
| 3810 reserve_conflict = 1; | |
| 3811 } | |
| 3812 scsi_destroy_pkt(pkt); | |
| 3813 } | |
| 3814 scsi_free_consistent_buf(bp); | |
| 3815 } else if (MDI_PI_IS_ONLINE(pip)) { | |
| 3816 if (strcmp(pclass, opinfo.opinfo_path_attr) | |
| 3817 != 0) { | |
| 3818 mdi_pi_set_preferred(pip, | |
| 3819 opinfo.opinfo_preferred); | |
| 3820 mutex_enter(&vlun->svl_mutex); | |
| 3821 if (vlun->svl_active_pclass == NULL || | |
| 3822 strcmp(opinfo.opinfo_path_attr, | |
| 3823 vlun->svl_active_pclass) != 0) { | |
| 3824 mutex_exit(&vlun->svl_mutex); | |
| 3825 tptr = kmem_alloc(strlen | |
| 3826 (opinfo.opinfo_path_attr)+1, | |
| 3827 KM_SLEEP); | |
| 3828 (void) strlcpy(tptr, | |
| 3829 opinfo.opinfo_path_attr, | |
| 3830 (strlen | |
| 3831 (opinfo.opinfo_path_attr) | |
| 3832 +1)); | |
| 3833 mutex_enter(&vlun->svl_mutex); | |
| 3834 } else { | |
| 3835 /* | |
| 3836 * No need to update | |
| 3837 * svl_active_pclass | |
| 3838 */ | |
| 3839 tptr = NULL; | |
| 3840 mutex_exit(&vlun->svl_mutex); | |
| 3841 } | |
| 3842 if (tptr) { | |
| 3843 if (vlun->svl_active_pclass | |
| 3844 != NULL) { | |
| 3845 kmem_free(vlun-> | |
| 3846 svl_active_pclass, | |
| 3847 strlen(vlun-> | |
| 3848 svl_active_pclass) | |
| 3849 +1); | |
| 3850 } | |
| 3851 vlun->svl_active_pclass = tptr; | |
| 3852 mutex_exit(&vlun->svl_mutex); | |
| 3853 } | |
| 3854 } | |
| 3855 } | |
| 3856 } else if ((opinfo.opinfo_path_state == SCSI_PATH_INACTIVE) && | |
| 3857 !(MDI_PI_IS_STANDBY(pip))) { | |
| 3858 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
| 3859 "!vhci_update_pathstates: marking path" | |
| 3860 " 0x%p as STANDBY\n", (void *)pip)); | |
| 3861 pdip = mdi_pi_get_phci(pip); | |
| 3862 cpath = kmem_alloc(MAXPATHLEN, KM_SLEEP); | |
| 3863 dpath = kmem_alloc(MAXPATHLEN, KM_SLEEP); | |
| 3864 vhci_log(CE_NOTE, ddi_get_parent(dip), "!%s" | |
| 3865 " (%s%d): path %s (%s%d) target address %s" | |
| 3866 " is now STANDBY because of" | |
| 3867 " an externally initiated failover", | |
| 3868 ddi_pathname(dip, cpath), | |
| 3869 ddi_driver_name(dip), | |
| 3870 ddi_get_instance(dip), | |
| 3871 ddi_pathname(pdip, dpath), | |
| 3872 ddi_driver_name(pdip), | |
| 3873 ddi_get_instance(pdip), | |
| 3874 mdi_pi_get_addr(pip)); | |
| 3875 kmem_free(cpath, MAXPATHLEN); | |
| 3876 kmem_free(dpath, MAXPATHLEN); | |
| 3877 mdi_pi_set_state(pip, | |
| 3878 MDI_PATHINFO_STATE_STANDBY); | |
| 3879 mdi_pi_set_preferred(pip, | |
| 3880 opinfo.opinfo_preferred); | |
| 3881 mutex_enter(&vlun->svl_mutex); | |
| 3882 if (vlun->svl_active_pclass != NULL) { | |
| 3883 if (strcmp(vlun->svl_active_pclass, | |
| 3884 opinfo.opinfo_path_attr) == 0) { | |
| 3885 kmem_free(vlun-> | |
| 3886 svl_active_pclass, | |
| 3887 strlen(vlun-> | |
| 3888 svl_active_pclass)+1); | |
| 3889 vlun->svl_active_pclass = NULL; | |
| 3890 } | |
| 3891 } | |
| 3892 mutex_exit(&vlun->svl_mutex); | |
| 3893 } | |
| 3894 (void) mdi_prop_free(pclass); | |
| 3895 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
|
3896 (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
|
3897 MDI_SELECT_NO_PREFERRED), pip, &npip); |
| 4851 | 3898 mdi_rele_path(pip); |
| 3899 | |
| 3900 } while ((npip != NULL) && (sps == MDI_SUCCESS)); | |
| 3901 | |
| 3902 /* | |
| 3903 * Check to see if this vlun has an active SCSI-II RESERVE. If so | |
| 3904 * clear the reservation by sending a reset, so the host doesn't | |
| 3905 * receive a reservation conflict. | |
| 3906 * Reset VLUN_RESERVE_ACTIVE_FLG for this vlun. Also notify ssd | |
| 3907 * of the reset, explicitly. | |
| 3908 */ | |
| 3909 if (vlun->svl_flags & VLUN_RESERVE_ACTIVE_FLG) { | |
| 3910 if (reserve_conflict && (vlun->svl_xlf_capable == 0)) { | |
| 3911 (void) vhci_recovery_reset(vlun, | |
| 3912 &svp->svp_psd->sd_address, FALSE, | |
| 3913 VHCI_DEPTH_TARGET); | |
| 3914 } | |
| 3915 vlun->svl_flags &= ~VLUN_RESERVE_ACTIVE_FLG; | |
| 3916 mutex_enter(&vhci->vhci_mutex); | |
| 3917 scsi_hba_reset_notify_callback(&vhci->vhci_mutex, | |
| 3918 &vhci->vhci_reset_notify_listf); | |
| 3919 mutex_exit(&vhci->vhci_mutex); | |
| 3920 } | |
| 3921 if (vlun->svl_flags & VLUN_UPDATE_TPG) { | |
| 3922 /* | |
| 3923 * Update the AccessState of related MP-API TPGs | |
| 3924 */ | |
| 3925 (void) vhci_mpapi_update_tpg_acc_state_for_lu(vhci, vlun); | |
| 3926 vlun->svl_flags &= ~VLUN_UPDATE_TPG; | |
| 3927 } | |
| 3928 done: | |
| 3929 if (vlun->svl_efo_update_path) { | |
| 3930 vlun->svl_efo_update_path = 0; | |
| 3931 vhci_efo_done(vlun->svl_swarg); | |
| 3932 vlun->svl_swarg = 0; | |
| 3933 } | |
| 3934 VHCI_RELEASE_LUN(vlun); | |
| 3935 } | |
| 3936 | |
| 3937 /* ARGSUSED */ | |
| 3938 static int | |
| 3939 vhci_pathinfo_init(dev_info_t *vdip, mdi_pathinfo_t *pip, int flags) | |
| 3940 { | |
| 3941 scsi_hba_tran_t *hba = NULL; | |
| 3942 struct scsi_device *psd = NULL; | |
| 3943 scsi_vhci_lun_t *vlun = NULL; | |
| 3944 dev_info_t *pdip = NULL; | |
| 3945 dev_info_t *tgt_dip; | |
| 3946 struct scsi_vhci *vhci; | |
| 3947 char *guid; | |
| 3948 scsi_vhci_priv_t *svp = NULL; | |
| 3949 int rval = MDI_FAILURE; | |
| 3950 int vlun_alloced = 0; | |
| 3951 | |
| 3952 ASSERT(vdip != NULL); | |
| 3953 ASSERT(pip != NULL); | |
| 3954 | |
| 3955 vhci = ddi_get_soft_state(vhci_softstate, ddi_get_instance(vdip)); | |
| 3956 ASSERT(vhci != NULL); | |
| 3957 | |
| 3958 pdip = mdi_pi_get_phci(pip); | |
| 3959 ASSERT(pdip != NULL); | |
| 3960 | |
| 3961 hba = ddi_get_driver_private(pdip); | |
| 3962 ASSERT(hba != NULL); | |
| 3963 | |
| 3964 tgt_dip = mdi_pi_get_client(pip); | |
| 3965 ASSERT(tgt_dip != NULL); | |
| 3966 | |
| 3967 if (ddi_prop_lookup_string(DDI_DEV_T_ANY, tgt_dip, PROPFLAGS, | |
| 3968 MDI_CLIENT_GUID_PROP, &guid) != DDI_SUCCESS) { | |
| 3969 VHCI_DEBUG(1, (CE_WARN, NULL, | |
| 3970 "vhci_pathinfo_init: lun guid property failed")); | |
| 3971 goto failure; | |
| 3972 } | |
| 3973 | |
| 3974 vlun = vhci_lun_lookup_alloc(tgt_dip, guid, &vlun_alloced); | |
| 3975 ddi_prop_free(guid); | |
| 3976 | |
| 3977 vlun->svl_dip = tgt_dip; | |
| 3978 | |
| 3979 svp = kmem_zalloc(sizeof (*svp), KM_SLEEP); | |
| 3980 svp->svp_svl = vlun; | |
| 3981 | |
| 3982 vlun->svl_lb_policy_save = mdi_get_lb_policy(tgt_dip); | |
| 3983 mutex_init(&svp->svp_mutex, NULL, MUTEX_DRIVER, NULL); | |
| 3984 cv_init(&svp->svp_cv, NULL, CV_DRIVER, NULL); | |
| 3985 | |
| 3986 psd = kmem_zalloc(sizeof (*psd), KM_SLEEP); | |
| 3987 mutex_init(&psd->sd_mutex, NULL, MUTEX_DRIVER, NULL); | |
| 3988 | |
|
8335
2b50eb467f7f
PSARC/2008/675 SCSI_HBA_ADDR_COMPLEX SCSA data structure linkage
Chris Horne <Chris.Horne@Sun.COM>
parents:
7656
diff
changeset
|
3989 if (hba->tran_hba_flags & SCSI_HBA_ADDR_COMPLEX) { |
|
2b50eb467f7f
PSARC/2008/675 SCSI_HBA_ADDR_COMPLEX SCSA data structure linkage
Chris Horne <Chris.Horne@Sun.COM>
parents:
7656
diff
changeset
|
3990 /* |
|
2b50eb467f7f
PSARC/2008/675 SCSI_HBA_ADDR_COMPLEX SCSA data structure linkage
Chris Horne <Chris.Horne@Sun.COM>
parents:
7656
diff
changeset
|
3991 * For a SCSI_HBA_ADDR_COMPLEX transport we store a pointer to |
|
2b50eb467f7f
PSARC/2008/675 SCSI_HBA_ADDR_COMPLEX SCSA data structure linkage
Chris Horne <Chris.Horne@Sun.COM>
parents:
7656
diff
changeset
|
3992 * scsi_device in the scsi_address structure. This allows an |
|
2b50eb467f7f
PSARC/2008/675 SCSI_HBA_ADDR_COMPLEX SCSA data structure linkage
Chris Horne <Chris.Horne@Sun.COM>
parents:
7656
diff
changeset
|
3993 * an HBA driver to find its scsi_device(9S) and |
|
2b50eb467f7f
PSARC/2008/675 SCSI_HBA_ADDR_COMPLEX SCSA data structure linkage
Chris Horne <Chris.Horne@Sun.COM>
parents:
7656
diff
changeset
|
3994 * per-scsi_device(9S) HBA private data given a |
|
2b50eb467f7f
PSARC/2008/675 SCSI_HBA_ADDR_COMPLEX SCSA data structure linkage
Chris Horne <Chris.Horne@Sun.COM>
parents:
7656
diff
changeset
|
3995 * scsi_address(9S) by using scsi_address_device(9F) and |
|
2b50eb467f7f
PSARC/2008/675 SCSI_HBA_ADDR_COMPLEX SCSA data structure linkage
Chris Horne <Chris.Horne@Sun.COM>
parents:
7656
diff
changeset
|
3996 * scsi_device_hba_private_get(9F)). |
|
2b50eb467f7f
PSARC/2008/675 SCSI_HBA_ADDR_COMPLEX SCSA data structure linkage
Chris Horne <Chris.Horne@Sun.COM>
parents:
7656
diff
changeset
|
3997 */ |
|
2b50eb467f7f
PSARC/2008/675 SCSI_HBA_ADDR_COMPLEX SCSA data structure linkage
Chris Horne <Chris.Horne@Sun.COM>
parents:
7656
diff
changeset
|
3998 psd->sd_address.a.a_sd = psd; |
|
2b50eb467f7f
PSARC/2008/675 SCSI_HBA_ADDR_COMPLEX SCSA data structure linkage
Chris Horne <Chris.Horne@Sun.COM>
parents:
7656
diff
changeset
|
3999 } else if (hba->tran_hba_flags & SCSI_HBA_TRAN_CLONE) { |
|
2b50eb467f7f
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|
4000 /* |
|
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|
4001 * Clone transport structure if requested, so |
|
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4002 * Self enumerating HBAs always need to use cloning |
|
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|
4003 */ |
| 4851 | 4004 scsi_hba_tran_t *clone = |
| 4005 kmem_alloc(sizeof (scsi_hba_tran_t), KM_SLEEP); | |
| 4006 bcopy(hba, clone, sizeof (scsi_hba_tran_t)); | |
| 4007 hba = clone; | |
| 4008 hba->tran_sd = psd; | |
| 4009 } else { | |
|
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4010 /* |
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4011 * SPI pHCI unit-address. If we ever need to support this |
|
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|
4012 * we could set a.spi.a_target/a.spi.a_lun based on pathinfo |
|
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4013 * node unit-address properties. For now we fail... |
|
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|
4014 */ |
|
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4015 goto failure; |
|
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|
4016 } |
|
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|
4017 |
| 4851 | 4018 psd->sd_dev = tgt_dip; |
| 4019 psd->sd_address.a_hba_tran = hba; | |
|
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4020 |
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|
4021 /* |
|
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4022 * Mark scsi_device as being associated with a pathinfo node. For |
|
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4023 * a scsi_device structure associated with a devinfo node, |
|
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|
4024 * scsi_ctlops_initchild sets this field to NULL. |
|
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|
4025 */ |
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4026 psd->sd_pathinfo = pip; |
|
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|
4027 |
|
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|
4028 /* |
|
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4029 * LEGACY: sd_private: set for older mpxio-capable pHCI drivers with |
|
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4030 * too much scsi_vhci/mdi/ndi knowledge. Remove this code when all |
|
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|
4031 * mpxio-capable pHCI drivers use SCSA enumeration services (or at |
|
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diff
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|
4032 * least have been changed to use sd_pathinfo instead). |
|
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|
4033 */ |
| 4851 | 4034 psd->sd_private = (caddr_t)pip; |
|
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|
4035 |
|
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|
4036 /* See scsi_hba.c for info on sd_tran_safe kludge */ |
|
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4037 psd->sd_tran_safe = hba; |
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|
4038 |
| 4851 | 4039 svp->svp_psd = psd; |
| 4040 mdi_pi_set_vhci_private(pip, (caddr_t)svp); | |
| 4041 | |
| 4042 /* | |
| 4043 * call hba's target init entry point if it exists | |
| 4044 */ | |
| 4045 if (hba->tran_tgt_init != NULL) { | |
| 4046 if ((rval = (*hba->tran_tgt_init)(pdip, tgt_dip, | |
| 4047 hba, psd)) != DDI_SUCCESS) { | |
| 4048 VHCI_DEBUG(1, (CE_WARN, pdip, | |
| 4049 "!vhci_pathinfo_init: tran_tgt_init failed for " | |
| 4050 "path=0x%p rval=%x", (void *)pip, rval)); | |
| 4051 goto failure; | |
| 4052 } | |
| 4053 } | |
| 4054 | |
| 4055 svp->svp_new_path = 1; | |
| 4056 | |
| 4057 psd->sd_inq = NULL; | |
| 4058 | |
| 4059 VHCI_DEBUG(4, (CE_NOTE, NULL, "!vhci_pathinfo_init: path:%p\n", | |
| 4060 (void *)pip)); | |
| 4061 return (MDI_SUCCESS); | |
| 4062 | |
| 4063 failure: | |
| 4064 if (psd) { | |
| 4065 mutex_destroy(&psd->sd_mutex); | |
| 4066 kmem_free(psd, sizeof (*psd)); | |
| 4067 } | |
| 4068 if (svp) { | |
| 4069 mdi_pi_set_vhci_private(pip, NULL); | |
| 4070 mutex_destroy(&svp->svp_mutex); | |
| 4071 cv_destroy(&svp->svp_cv); | |
| 4072 kmem_free(svp, sizeof (*svp)); | |
| 4073 } | |
|
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|
4074 if (hba && (hba->tran_hba_flags & SCSI_HBA_TRAN_CLONE)) |
| 4851 | 4075 kmem_free(hba, sizeof (scsi_hba_tran_t)); |
| 4076 | |
| 4077 if (vlun_alloced) | |
| 4078 vhci_lun_free(tgt_dip); | |
| 4079 | |
| 4080 return (rval); | |
| 4081 } | |
| 4082 | |
| 4083 /* ARGSUSED */ | |
| 4084 static int | |
| 4085 vhci_pathinfo_uninit(dev_info_t *vdip, mdi_pathinfo_t *pip, int flags) | |
| 4086 { | |
| 4087 scsi_hba_tran_t *hba = NULL; | |
| 4088 struct scsi_device *psd = NULL; | |
| 4089 dev_info_t *pdip = NULL; | |
| 4090 dev_info_t *cdip = NULL; | |
| 4091 scsi_vhci_priv_t *svp = NULL; | |
| 4092 | |
| 4093 ASSERT(vdip != NULL); | |
| 4094 ASSERT(pip != NULL); | |
| 4095 | |
| 4096 pdip = mdi_pi_get_phci(pip); | |
| 4097 ASSERT(pdip != NULL); | |
| 4098 | |
| 4099 cdip = mdi_pi_get_client(pip); | |
| 4100 ASSERT(cdip != NULL); | |
| 4101 | |
| 4102 hba = ddi_get_driver_private(pdip); | |
| 4103 ASSERT(hba != NULL); | |
| 4104 | |
| 4105 vhci_mpapi_set_path_state(vdip, pip, MP_DRVR_PATH_STATE_REMOVED); | |
| 4106 svp = (scsi_vhci_priv_t *)mdi_pi_get_vhci_private(pip); | |
| 4107 if (svp == NULL) { | |
| 4108 /* path already freed. Nothing to do. */ | |
| 4109 return (MDI_SUCCESS); | |
| 4110 } | |
| 4111 | |
| 4112 psd = svp->svp_psd; | |
| 4113 ASSERT(psd != NULL); | |
| 4114 | |
|
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|
4115 if (hba->tran_hba_flags & SCSI_HBA_ADDR_COMPLEX) { |
|
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|
4116 /* Verify plumbing */ |
|
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|
4117 ASSERT(psd->sd_address.a_hba_tran == hba); |
|
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diff
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|
4118 ASSERT(psd->sd_address.a.a_sd == psd); |
|
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|
4119 } else if (hba->tran_hba_flags & SCSI_HBA_TRAN_CLONE) { |
|
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diff
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|
4120 /* Switch to cloned scsi_hba_tran(9S) structure */ |
| 4851 | 4121 hba = psd->sd_address.a_hba_tran; |
| 4122 ASSERT(hba->tran_hba_flags & SCSI_HBA_TRAN_CLONE); | |
| 4123 ASSERT(hba->tran_sd == psd); | |
| 4124 } | |
| 4125 | |
| 4126 if (hba->tran_tgt_free != NULL) { | |
| 4127 (*hba->tran_tgt_free) (pdip, cdip, hba, psd); | |
| 4128 } | |
| 4129 mutex_destroy(&psd->sd_mutex); | |
| 4130 if (hba->tran_hba_flags & SCSI_HBA_TRAN_CLONE) { | |
| 4131 kmem_free(hba, sizeof (*hba)); | |
| 4132 } | |
| 4133 | |
| 4134 mdi_pi_set_vhci_private(pip, NULL); | |
| 4135 kmem_free((caddr_t)psd, sizeof (*psd)); | |
| 4136 | |
| 4137 mutex_destroy(&svp->svp_mutex); | |
| 4138 cv_destroy(&svp->svp_cv); | |
| 4139 kmem_free((caddr_t)svp, sizeof (*svp)); | |
| 4140 | |
| 4141 /* | |
| 4142 * If this is the last path to the client, | |
| 4143 * then free up the vlun as well. | |
| 4144 */ | |
| 4145 if (mdi_client_get_path_count(cdip) == 1) { | |
| 4146 vhci_lun_free(cdip); | |
| 4147 } | |
| 4148 | |
| 4149 VHCI_DEBUG(4, (CE_NOTE, NULL, "!vhci_pathinfo_uninit: path=0x%p\n", | |
| 4150 (void *)pip)); | |
| 4151 return (MDI_SUCCESS); | |
| 4152 } | |
| 4153 | |
| 4154 /* ARGSUSED */ | |
| 4155 static int | |
| 4156 vhci_pathinfo_state_change(dev_info_t *vdip, mdi_pathinfo_t *pip, | |
| 4157 mdi_pathinfo_state_t state, uint32_t ext_state, int flags) | |
| 4158 { | |
| 4159 int rval = MDI_SUCCESS; | |
| 4160 scsi_vhci_priv_t *svp; | |
| 4161 scsi_vhci_lun_t *vlun; | |
| 4162 int held; | |
| 4163 int op = (flags & 0xf00) >> 8; | |
| 4164 struct scsi_vhci *vhci; | |
| 4165 | |
| 4166 vhci = ddi_get_soft_state(vhci_softstate, ddi_get_instance(vdip)); | |
| 4167 | |
| 4168 if (flags & MDI_EXT_STATE_CHANGE) { | |
| 4169 /* | |
| 4170 * We do not want to issue any commands down the path in case | |
| 4171 * sync flag is set. Lower layers might not be ready to accept | |
| 4172 * any I/O commands. | |
| 4173 */ | |
| 4174 if (op == DRIVER_DISABLE) | |
| 4175 return (MDI_SUCCESS); | |
| 4176 | |
| 4177 svp = (scsi_vhci_priv_t *)mdi_pi_get_vhci_private(pip); | |
| 4178 if (svp == NULL) { | |
| 4179 return (MDI_FAILURE); | |
| 4180 } | |
| 4181 vlun = svp->svp_svl; | |
| 4182 | |
| 4183 if (flags & MDI_BEFORE_STATE_CHANGE) { | |
| 4184 /* | |
| 4185 * Hold the LUN. | |
| 4186 */ | |
| 4187 VHCI_HOLD_LUN(vlun, VH_SLEEP, held); | |
| 4188 if (flags & MDI_DISABLE_OP) { | |
| 4189 /* | |
| 4190 * Issue scsi reset if it happens to be | |
| 4191 * reserved path. | |
| 4192 */ | |
| 4193 if (vlun->svl_flags & VLUN_RESERVE_ACTIVE_FLG) { | |
| 4194 /* | |
| 4195 * if reservation pending on | |
| 4196 * this path, dont' mark the | |
| 4197 * path busy | |
| 4198 */ | |
| 4199 if (op == DRIVER_DISABLE_TRANSIENT) { | |
| 4200 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
| 4201 "!vhci_pathinfo" | |
| 4202 "_state_change (pip:%p): " | |
| 4203 " reservation: fail busy\n", | |
| 4204 (void *)pip)); | |
| 4205 return (MDI_FAILURE); | |
| 4206 } | |
| 4207 if (pip == vlun->svl_resrv_pip) { | |
| 4208 if (vhci_recovery_reset( | |
| 4209 svp->svp_svl, | |
| 4210 &svp->svp_psd->sd_address, | |
| 4211 TRUE, | |
| 4212 VHCI_DEPTH_TARGET) == 0) { | |
| 4213 VHCI_DEBUG(1, | |
| 4214 (CE_NOTE, NULL, | |
| 4215 "!vhci_pathinfo" | |
| 4216 "_state_change " | |
| 4217 " (pip:%p): " | |
| 4218 "reset failed, " | |
| 4219 "give up!\n", | |
| 4220 (void *)pip)); | |
| 4221 } | |
| 4222 vlun->svl_flags &= | |
| 4223 ~VLUN_RESERVE_ACTIVE_FLG; | |
| 4224 } | |
| 4225 } | |
| 4226 } else if (flags & MDI_ENABLE_OP) { | |
| 4227 if (((vhci->vhci_conf_flags & | |
| 4228 VHCI_CONF_FLAGS_AUTO_FAILBACK) == | |
| 4229 VHCI_CONF_FLAGS_AUTO_FAILBACK) && | |
| 4230 MDI_PI_IS_USER_DISABLE(pip) && | |
| 4231 MDI_PI_IS_STANDBY(pip)) { | |
| 4232 struct scsi_failover_ops *fo; | |
| 4233 char *best_pclass, *pclass = NULL; | |
| 4234 int best_class, rv; | |
| 4235 /* | |
| 4236 * Failback if enabling a standby path | |
| 4237 * and it is the primary class or | |
| 4238 * preferred class | |
| 4239 */ | |
| 4240 best_class = mdi_pi_get_preferred(pip); | |
| 4241 if (best_class == 0) { | |
| 4242 /* | |
| 4243 * if not preferred - compare | |
| 4244 * path-class with class | |
| 4245 */ | |
| 4246 fo = vlun->svl_fops; | |
|
6941
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6459247 scsi_vhci does not return correct value for dma-max property
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|
4247 (void) fo->sfo_pathclass_next( |
|
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changeset
|
4248 NULL, &best_pclass, |
| 4851 | 4249 vlun->svl_fops_ctpriv); |
| 4250 pclass = NULL; | |
| 4251 rv = mdi_prop_lookup_string(pip, | |
| 4252 "path-class", &pclass); | |
| 4253 if (rv != MDI_SUCCESS || | |
| 4254 pclass == NULL) { | |
| 4255 vhci_log(CE_NOTE, vdip, | |
| 4256 "!path-class " | |
| 4257 " lookup " | |
| 4258 "failed. rv: %d" | |
| 4259 "class: %p", rv, | |
| 4260 (void *)pclass); | |
| 4261 } else if (strncmp(pclass, | |
| 4262 best_pclass, | |
| 4263 strlen(best_pclass)) == 0) { | |
| 4264 best_class = 1; | |
| 4265 } | |
| 4266 if (rv == MDI_SUCCESS && | |
| 4267 pclass != NULL) { | |
| 4268 rv = mdi_prop_free( | |
| 4269 pclass); | |
| 4270 if (rv != | |
| 4271 DDI_PROP_SUCCESS) { | |
| 4272 vhci_log( | |
| 4273 CE_NOTE, | |
| 4274 vdip, | |
| 4275 "!path-" | |
| 4276 "class" | |
| 4277 " free" | |
| 4278 " failed" | |
| 4279 " rv: %d" | |
| 4280 " class: " | |
| 4281 "%p", | |
| 4282 rv, | |
| 4283 (void *) | |
| 4284 pclass); | |
| 4285 } | |
| 4286 } | |
| 4287 } | |
| 4288 if (best_class == 1) { | |
| 4289 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
| 4290 "preferred path: %p " | |
| 4291 "USER_DISABLE->USER_ENABLE " | |
| 4292 "transition for lun %s\n", | |
| 4293 (void *)pip, | |
| 4294 vlun->svl_lun_wwn)); | |
| 4295 (void) taskq_dispatch( | |
| 4296 vhci->vhci_taskq, | |
| 4297 vhci_initiate_auto_failback, | |
| 4298 (void *) vlun, KM_SLEEP); | |
| 4299 } | |
| 4300 } | |
| 4301 /* | |
| 4302 * if PGR is active, revalidate key and | |
| 4303 * register on this path also, if key is | |
| 4304 * still valid | |
| 4305 */ | |
| 4306 sema_p(&vlun->svl_pgr_sema); | |
| 4307 if (vlun->svl_pgr_active) | |
| 4308 (void) | |
| 4309 vhci_pgr_validate_and_register(svp); | |
| 4310 sema_v(&vlun->svl_pgr_sema); | |
| 4311 /* | |
| 4312 * Inform target driver about any | |
| 4313 * reservations to be reinstated if target | |
| 4314 * has dropped reservation during the busy | |
| 4315 * period. | |
| 4316 */ | |
| 4317 mutex_enter(&vhci->vhci_mutex); | |
| 4318 scsi_hba_reset_notify_callback( | |
| 4319 &vhci->vhci_mutex, | |
| 4320 &vhci->vhci_reset_notify_listf); | |
| 4321 mutex_exit(&vhci->vhci_mutex); | |
| 4322 } | |
| 4323 } | |
| 4324 if (flags & MDI_AFTER_STATE_CHANGE) { | |
| 4325 if (flags & MDI_ENABLE_OP) { | |
| 4326 mutex_enter(&vhci_global_mutex); | |
| 4327 cv_broadcast(&vhci_cv); | |
| 4328 mutex_exit(&vhci_global_mutex); | |
| 4329 } | |
| 4330 if (vlun->svl_setcap_done) { | |
| 4331 (void) vhci_pHCI_cap(&svp->svp_psd->sd_address, | |
| 4332 "sector-size", vlun->svl_sector_size, | |
| 4333 1, pip); | |
| 4334 } | |
| 4335 | |
| 4336 /* | |
| 4337 * Release the LUN | |
| 4338 */ | |
| 4339 VHCI_RELEASE_LUN(vlun); | |
| 4340 | |
| 4341 /* | |
| 4342 * Path transition is complete. | |
| 4343 * Run callback to indicate target driver to | |
| 4344 * retry to prevent IO starvation. | |
| 4345 */ | |
| 4346 if (scsi_callback_id != 0) { | |
| 4347 ddi_run_callback(&scsi_callback_id); | |
| 4348 } | |
| 4349 } | |
| 4350 } else { | |
| 4351 switch (state) { | |
| 4352 case MDI_PATHINFO_STATE_ONLINE: | |
| 4353 rval = vhci_pathinfo_online(vdip, pip, flags); | |
| 4354 break; | |
| 4355 | |
| 4356 case MDI_PATHINFO_STATE_OFFLINE: | |
| 4357 rval = vhci_pathinfo_offline(vdip, pip, flags); | |
| 4358 break; | |
| 4359 | |
| 4360 default: | |
| 4361 break; | |
| 4362 } | |
| 4363 /* | |
| 4364 * Path transition is complete. | |
| 4365 * Run callback to indicate target driver to | |
| 4366 * retry to prevent IO starvation. | |
| 4367 */ | |
| 4368 if ((rval == MDI_SUCCESS) && (scsi_callback_id != 0)) { | |
| 4369 ddi_run_callback(&scsi_callback_id); | |
| 4370 } | |
| 4371 return (rval); | |
| 4372 } | |
| 4373 | |
| 4374 return (MDI_SUCCESS); | |
| 4375 } | |
| 4376 | |
| 4377 /* | |
| 4378 * Parse the mpxio load balancing options. The datanameptr | |
| 4379 * will point to a string containing the load-balance-options value. | |
| 4380 * The load-balance-options value will be a property that | |
| 4381 * defines the load-balance algorithm and any arguments to that | |
| 4382 * algorithm. | |
| 4383 * For example: | |
| 4384 * device-type-mpxio-options-list= | |
| 4385 * "device-type=SUN SENA", "load-balance-options=logical-block-options" | |
| 4386 * "device-type=SUN SE6920", "round-robin-options"; | |
| 4387 * logical-block-options="load-balance=logical-block", "region-size=15"; | |
| 4388 * round-robin-options="load-balance=round-robin"; | |
| 4389 * | |
| 4390 * If the load-balance is not defined the load balance algorithm will | |
| 4391 * default to the global setting. There will be default values assigned | |
| 4392 * to the arguments (region-size=18) and if an argument is one | |
| 4393 * that is not known, it will be ignored. | |
| 4394 */ | |
| 4395 static void | |
| 4396 vhci_parse_mpxio_lb_options(dev_info_t *dip, dev_info_t *cdip, | |
| 4397 caddr_t datanameptr) | |
| 4398 { | |
| 4399 char *dataptr, *next_entry; | |
| 4400 caddr_t config_list = NULL; | |
| 4401 int config_list_len = 0, list_len = 0; | |
| 4402 int region_size = -1; | |
| 4403 client_lb_t load_balance; | |
| 4404 | |
| 4405 if (ddi_getlongprop(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS, datanameptr, | |
| 4406 (caddr_t)&config_list, &config_list_len) != DDI_PROP_SUCCESS) { | |
| 4407 return; | |
| 4408 } | |
| 4409 | |
| 4410 list_len = config_list_len; | |
| 4411 next_entry = config_list; | |
| 4412 while (config_list_len > 0) { | |
| 4413 dataptr = next_entry; | |
| 4414 | |
| 4415 if (strncmp(mdi_load_balance, dataptr, | |
| 4416 strlen(mdi_load_balance)) == 0) { | |
| 4417 /* get the load-balance scheme */ | |
| 4418 dataptr += strlen(mdi_load_balance) + 1; | |
| 4419 if (strcmp(dataptr, LOAD_BALANCE_PROP_RR) == 0) { | |
| 4420 (void) mdi_set_lb_policy(cdip, LOAD_BALANCE_RR); | |
| 4421 load_balance = LOAD_BALANCE_RR; | |
| 4422 } else if (strcmp(dataptr, | |
| 4423 LOAD_BALANCE_PROP_LBA) == 0) { | |
| 4424 (void) mdi_set_lb_policy(cdip, | |
| 4425 LOAD_BALANCE_LBA); | |
| 4426 load_balance = LOAD_BALANCE_LBA; | |
| 4427 } else if (strcmp(dataptr, | |
| 4428 LOAD_BALANCE_PROP_NONE) == 0) { | |
| 4429 (void) mdi_set_lb_policy(cdip, | |
| 4430 LOAD_BALANCE_NONE); | |
| 4431 load_balance = LOAD_BALANCE_NONE; | |
| 4432 } | |
| 4433 } else if (strncmp(dataptr, LOGICAL_BLOCK_REGION_SIZE, | |
| 4434 strlen(LOGICAL_BLOCK_REGION_SIZE)) == 0) { | |
| 4435 int i = 0; | |
| 4436 char *ptr; | |
| 4437 char *tmp; | |
| 4438 | |
| 4439 tmp = dataptr + (strlen(LOGICAL_BLOCK_REGION_SIZE) + 1); | |
| 4440 /* check for numeric value */ | |
| 4441 for (ptr = tmp; i < strlen(tmp); i++, ptr++) { | |
| 4442 if (!isdigit(*ptr)) { | |
| 4443 cmn_err(CE_WARN, | |
| 4444 "Illegal region size: %s." | |
| 4445 " Setting to default value: %d", | |
| 4446 tmp, | |
| 4447 LOAD_BALANCE_DEFAULT_REGION_SIZE); | |
| 4448 region_size = | |
| 4449 LOAD_BALANCE_DEFAULT_REGION_SIZE; | |
| 4450 break; | |
| 4451 } | |
| 4452 } | |
| 4453 if (i >= strlen(tmp)) { | |
| 4454 region_size = stoi(&tmp); | |
| 4455 } | |
| 4456 (void) mdi_set_lb_region_size(cdip, region_size); | |
| 4457 } | |
| 4458 config_list_len -= (strlen(next_entry) + 1); | |
| 4459 next_entry += strlen(next_entry) + 1; | |
| 4460 } | |
| 4461 #ifdef DEBUG | |
| 4462 if ((region_size >= 0) && (load_balance != LOAD_BALANCE_LBA)) { | |
| 4463 VHCI_DEBUG(1, (CE_NOTE, dip, | |
| 4464 "!vhci_parse_mpxio_lb_options: region-size: %d" | |
| 4465 "only valid for load-balance=logical-block\n", | |
| 4466 region_size)); | |
| 4467 } | |
| 4468 #endif | |
| 4469 if ((region_size == -1) && (load_balance == LOAD_BALANCE_LBA)) { | |
| 4470 VHCI_DEBUG(1, (CE_NOTE, dip, | |
| 4471 "!vhci_parse_mpxio_lb_options: No region-size" | |
| 4472 " defined load-balance=logical-block." | |
| 4473 " Default to: %d\n", LOAD_BALANCE_DEFAULT_REGION_SIZE)); | |
| 4474 (void) mdi_set_lb_region_size(cdip, | |
| 4475 LOAD_BALANCE_DEFAULT_REGION_SIZE); | |
| 4476 } | |
| 4477 if (list_len > 0) { | |
| 4478 kmem_free(config_list, list_len); | |
| 4479 } | |
| 4480 } | |
| 4481 | |
| 4482 /* | |
| 4483 * Parse the device-type-mpxio-options-list looking for the key of | |
| 4484 * "load-balance-options". If found, parse the load balancing options. | |
| 4485 * Check the comment of the vhci_get_device_type_mpxio_options() | |
| 4486 * for the device-type-mpxio-options-list. | |
| 4487 */ | |
| 4488 static void | |
| 4489 vhci_parse_mpxio_options(dev_info_t *dip, dev_info_t *cdip, | |
| 4490 caddr_t datanameptr, int list_len) | |
| 4491 { | |
| 4492 char *dataptr; | |
| 4493 int len; | |
| 4494 | |
| 4495 /* | |
| 4496 * get the data list | |
| 4497 */ | |
| 4498 dataptr = datanameptr; | |
| 4499 len = 0; | |
| 4500 while (len < list_len && | |
| 4501 strncmp(dataptr, DEVICE_TYPE_STR, strlen(DEVICE_TYPE_STR)) | |
| 4502 != 0) { | |
| 4503 if (strncmp(dataptr, LOAD_BALANCE_OPTIONS, | |
| 4504 strlen(LOAD_BALANCE_OPTIONS)) == 0) { | |
| 4505 len += strlen(LOAD_BALANCE_OPTIONS) + 1; | |
| 4506 dataptr += strlen(LOAD_BALANCE_OPTIONS) + 1; | |
| 4507 vhci_parse_mpxio_lb_options(dip, cdip, dataptr); | |
| 4508 } | |
| 4509 len += strlen(dataptr) + 1; | |
| 4510 dataptr += strlen(dataptr) + 1; | |
| 4511 } | |
| 4512 } | |
| 4513 | |
| 4514 /* | |
| 4515 * Check the inquriy string returned from the device wiith the device-type | |
| 4516 * Check for the existence of the device-type-mpxio-options-list and | |
| 4517 * if found parse the list checking for a match with the device-type | |
| 4518 * value and the inquiry string returned from the device. If a match | |
| 4519 * is found, parse the mpxio options list. The format of the | |
| 4520 * device-type-mpxio-options-list is: | |
| 4521 * device-type-mpxio-options-list= | |
| 4522 * "device-type=SUN SENA", "load-balance-options=logical-block-options" | |
| 4523 * "device-type=SUN SE6920", "round-robin-options"; | |
| 4524 * logical-block-options="load-balance=logical-block", "region-size=15"; | |
| 4525 * round-robin-options="load-balance=round-robin"; | |
| 4526 */ | |
| 4527 void | |
| 4528 vhci_get_device_type_mpxio_options(dev_info_t *dip, dev_info_t *cdip, | |
| 4529 struct scsi_device *devp) | |
| 4530 { | |
| 4531 | |
| 4532 caddr_t config_list = NULL; | |
| 4533 caddr_t vidptr, datanameptr; | |
| 4534 int vidlen, dupletlen = 0; | |
| 4535 int config_list_len = 0, len; | |
| 4536 struct scsi_inquiry *inq = devp->sd_inq; | |
| 4537 | |
| 4538 /* | |
| 4539 * look up the device-type-mpxio-options-list and walk thru | |
| 4540 * the list compare the vendor ids of the earlier inquiry command and | |
| 4541 * with those vids in the list if there is a match, lookup | |
| 4542 * the mpxio-options value | |
| 4543 */ | |
| 4544 if (ddi_getlongprop(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS, | |
| 4545 MPXIO_OPTIONS_LIST, | |
| 4546 (caddr_t)&config_list, &config_list_len) == DDI_PROP_SUCCESS) { | |
| 4547 | |
| 4548 /* | |
| 4549 * Compare vids in each duplet - if it matches, | |
| 4550 * parse the mpxio options list. | |
| 4551 */ | |
| 4552 for (len = config_list_len, vidptr = config_list; len > 0; | |
| 4553 len -= dupletlen) { | |
| 4554 | |
| 4555 dupletlen = 0; | |
| 4556 | |
| 4557 if (strlen(vidptr) != 0 && | |
| 4558 strncmp(vidptr, DEVICE_TYPE_STR, | |
| 4559 strlen(DEVICE_TYPE_STR)) == 0) { | |
| 4560 /* point to next duplet */ | |
| 4561 datanameptr = vidptr + strlen(vidptr) + 1; | |
| 4562 /* add len of this duplet */ | |
| 4563 dupletlen += strlen(vidptr) + 1; | |
| 4564 /* get to device type */ | |
| 4565 vidptr += strlen(DEVICE_TYPE_STR) + 1; | |
| 4566 vidlen = strlen(vidptr); | |
| 4567 if ((vidlen != 0) && | |
| 4568 bcmp(inq->inq_vid, vidptr, vidlen) == 0) { | |
| 4569 vhci_parse_mpxio_options(dip, cdip, | |
| 4570 datanameptr, len - dupletlen); | |
| 4571 break; | |
| 4572 } | |
| 4573 /* get to next duplet */ | |
| 4574 vidptr += strlen(vidptr) + 1; | |
| 4575 } | |
| 4576 /* get to the next device-type */ | |
| 4577 while (len - dupletlen > 0 && | |
| 4578 strlen(vidptr) != 0 && | |
| 4579 strncmp(vidptr, DEVICE_TYPE_STR, | |
| 4580 strlen(DEVICE_TYPE_STR)) != 0) { | |
| 4581 dupletlen += strlen(vidptr) + 1; | |
| 4582 vidptr += strlen(vidptr) + 1; | |
| 4583 } | |
| 4584 } | |
| 4585 if (config_list_len > 0) { | |
| 4586 kmem_free(config_list, config_list_len); | |
| 4587 } | |
| 4588 } | |
| 4589 } | |
| 4590 | |
| 4591 static int | |
| 4592 vhci_update_pathinfo(struct scsi_device *psd, mdi_pathinfo_t *pip, | |
| 4593 struct scsi_failover_ops *fo, | |
| 4594 scsi_vhci_lun_t *vlun, | |
| 4595 struct scsi_vhci *vhci) | |
| 4596 { | |
| 4597 struct scsi_path_opinfo opinfo; | |
| 4598 char *pclass, *best_pclass; | |
| 4599 | |
|
6941
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|
4600 if (fo->sfo_path_get_opinfo(psd, &opinfo, vlun->svl_fops_ctpriv) != 0) { |
| 4851 | 4601 VHCI_DEBUG(1, (CE_NOTE, NULL, "!vhci_update_pathinfo: " |
| 4602 "Failed to get operation info for path:%p\n", (void *)pip)); | |
| 4603 return (MDI_FAILURE); | |
| 4604 } | |
| 4605 /* set the xlf capable flag in the vlun for future use */ | |
| 4606 vlun->svl_xlf_capable = opinfo.opinfo_xlf_capable; | |
| 4607 (void) mdi_prop_update_string(pip, "path-class", | |
| 4608 opinfo.opinfo_path_attr); | |
| 4609 | |
| 4610 pclass = opinfo.opinfo_path_attr; | |
| 4611 if (opinfo.opinfo_path_state == SCSI_PATH_ACTIVE) { | |
| 4612 mutex_enter(&vlun->svl_mutex); | |
| 4613 if (vlun->svl_active_pclass != NULL) { | |
| 4614 if (strcmp(vlun->svl_active_pclass, pclass) != 0) { | |
| 4615 mutex_exit(&vlun->svl_mutex); | |
| 4616 /* | |
| 4617 * Externally initiated failover has happened; | |
| 4618 * force the path state to be STANDBY/ONLINE, | |
| 4619 * next IO will trigger failover and thus | |
| 4620 * sync-up the pathstates. Reason we don't | |
| 4621 * sync-up immediately by invoking | |
| 4622 * vhci_update_pathstates() is because it | |
| 4623 * needs a VHCI_HOLD_LUN() and we don't | |
| 4624 * want to block here. | |
| 4625 * | |
| 4626 * Further, if the device is an ALUA device, | |
| 4627 * then failure to exactly match 'pclass' and | |
| 4628 * 'svl_active_pclass'(as is the case here) | |
| 4629 * indicates that the currently active path | |
| 4630 * is a 'non-optimized' path - which means | |
| 4631 * that 'svl_active_pclass' needs to be | |
| 4632 * replaced with opinfo.opinfo_path_state | |
| 4633 * value. | |
| 4634 */ | |
| 4635 | |
| 4636 if (SCSI_FAILOVER_IS_TPGS(vlun->svl_fops)) { | |
| 4637 char *tptr; | |
| 4638 | |
| 4639 /* | |
| 4640 * The device is ALUA compliant. The | |
| 4641 * state need to be changed to online | |
| 4642 * rather than standby state which is | |
| 4643 * done typically for a asymmetric | |
| 4644 * device that is non ALUA compliant. | |
| 4645 */ | |
| 4646 mdi_pi_set_state(pip, | |
| 4647 MDI_PATHINFO_STATE_ONLINE); | |
| 4648 tptr = kmem_alloc(strlen | |
| 4649 (opinfo.opinfo_path_attr)+1, | |
| 4650 KM_SLEEP); | |
| 4651 (void) strlcpy(tptr, | |
| 4652 opinfo.opinfo_path_attr, | |
| 4653 (strlen(opinfo.opinfo_path_attr) | |
| 4654 +1)); | |
| 4655 mutex_enter(&vlun->svl_mutex); | |
| 4656 kmem_free(vlun->svl_active_pclass, | |
| 4657 strlen(vlun->svl_active_pclass)+1); | |
| 4658 vlun->svl_active_pclass = tptr; | |
| 4659 mutex_exit(&vlun->svl_mutex); | |
| 4660 } else { | |
| 4661 /* | |
| 4662 * Non ALUA device case. | |
| 4663 */ | |
| 4664 mdi_pi_set_state(pip, | |
| 4665 MDI_PATHINFO_STATE_STANDBY); | |
| 4666 } | |
| 4667 vlun->svl_fo_support = opinfo.opinfo_mode; | |
| 4668 mdi_pi_set_preferred(pip, | |
| 4669 opinfo.opinfo_preferred); | |
| 4670 return (MDI_SUCCESS); | |
| 4671 } | |
| 4672 } else { | |
| 4673 char *tptr; | |
| 4674 | |
| 4675 /* | |
| 4676 * lets release the mutex before we try to | |
| 4677 * allocate since the potential to sleep is | |
| 4678 * possible. | |
| 4679 */ | |
| 4680 mutex_exit(&vlun->svl_mutex); | |
| 4681 tptr = kmem_alloc(strlen(pclass)+1, KM_SLEEP); | |
| 4682 (void) strlcpy(tptr, pclass, (strlen(pclass)+1)); | |
| 4683 mutex_enter(&vlun->svl_mutex); | |
| 4684 vlun->svl_active_pclass = tptr; | |
| 4685 } | |
| 4686 mutex_exit(&vlun->svl_mutex); | |
| 4687 mdi_pi_set_state(pip, MDI_PATHINFO_STATE_ONLINE); | |
| 4688 vlun->svl_waiting_for_activepath = 0; | |
| 4689 } else if (opinfo.opinfo_path_state == SCSI_PATH_ACTIVE_NONOPT) { | |
| 4690 mutex_enter(&vlun->svl_mutex); | |
| 4691 if (vlun->svl_active_pclass == NULL) { | |
| 4692 char *tptr; | |
| 4693 | |
| 4694 mutex_exit(&vlun->svl_mutex); | |
| 4695 tptr = kmem_alloc(strlen(pclass)+1, KM_SLEEP); | |
| 4696 (void) strlcpy(tptr, pclass, (strlen(pclass)+1)); | |
| 4697 mutex_enter(&vlun->svl_mutex); | |
| 4698 vlun->svl_active_pclass = tptr; | |
| 4699 } | |
| 4700 mutex_exit(&vlun->svl_mutex); | |
| 4701 mdi_pi_set_state(pip, MDI_PATHINFO_STATE_ONLINE); | |
| 4702 vlun->svl_waiting_for_activepath = 0; | |
| 4703 } else if (opinfo.opinfo_path_state == SCSI_PATH_INACTIVE) { | |
| 4704 mutex_enter(&vlun->svl_mutex); | |
| 4705 if (vlun->svl_active_pclass != NULL) { | |
| 4706 if (strcmp(vlun->svl_active_pclass, pclass) == 0) { | |
| 4707 mutex_exit(&vlun->svl_mutex); | |
| 4708 /* | |
| 4709 * externally initiated failover has happened; | |
| 4710 * force state to ONLINE (see comment above) | |
| 4711 */ | |
| 4712 mdi_pi_set_state(pip, | |
| 4713 MDI_PATHINFO_STATE_ONLINE); | |
| 4714 vlun->svl_fo_support = opinfo.opinfo_mode; | |
| 4715 mdi_pi_set_preferred(pip, | |
| 4716 opinfo.opinfo_preferred); | |
| 4717 return (MDI_SUCCESS); | |
| 4718 } | |
| 4719 } | |
| 4720 mutex_exit(&vlun->svl_mutex); | |
| 4721 mdi_pi_set_state(pip, MDI_PATHINFO_STATE_STANDBY); | |
| 4722 | |
| 4723 /* | |
| 4724 * Initiate auto-failback, if enabled, for path if path-state | |
| 4725 * is transitioning from OFFLINE->STANDBY and pathclass is the | |
| 4726 * prefered pathclass for this storage. | |
| 4727 * NOTE: In case where opinfo_path_state is SCSI_PATH_ACTIVE | |
| 4728 * (above), where the pi state is set to STANDBY, we don't | |
| 4729 * initiate auto-failback as the next IO shall take care of. | |
| 4730 * this. See comment above. | |
| 4731 */ | |
|
6941
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6459247 scsi_vhci does not return correct value for dma-max property
rralphs
parents:
6777
diff
changeset
|
4732 (void) fo->sfo_pathclass_next(NULL, &best_pclass, |
| 4851 | 4733 vlun->svl_fops_ctpriv); |
| 4734 if (((vhci->vhci_conf_flags & VHCI_CONF_FLAGS_AUTO_FAILBACK) == | |
| 4735 VHCI_CONF_FLAGS_AUTO_FAILBACK) && | |
| 4736 ((strcmp(pclass, best_pclass) == 0) || | |
| 4737 mdi_pi_get_preferred(pip) == 1) && | |
| 4738 ((MDI_PI_OLD_STATE(pip) == MDI_PATHINFO_STATE_OFFLINE)|| | |
| 4739 (MDI_PI_OLD_STATE(pip) == MDI_PATHINFO_STATE_INIT))) { | |
| 4740 VHCI_DEBUG(1, (CE_NOTE, NULL, "%s pathclass path: %p" | |
| 4741 " OFFLINE->STANDBY transition for lun %s\n", | |
| 4742 best_pclass, (void *)pip, vlun->svl_lun_wwn)); | |
| 4743 (void) taskq_dispatch(vhci->vhci_taskq, | |
| 4744 vhci_initiate_auto_failback, (void *) vlun, | |
| 4745 KM_SLEEP); | |
| 4746 } | |
| 4747 } | |
| 4748 vlun->svl_fo_support = opinfo.opinfo_mode; | |
| 4749 mdi_pi_set_preferred(pip, opinfo.opinfo_preferred); | |
| 4750 | |
| 4751 VHCI_DEBUG(8, (CE_NOTE, NULL, "vhci_update_pathinfo: opinfo_rev = %x," | |
| 4752 " opinfo_path_state = %x opinfo_preferred = %x, opinfo_mode = %x\n", | |
| 4753 opinfo.opinfo_rev, opinfo.opinfo_path_state, | |
| 4754 opinfo.opinfo_preferred, opinfo.opinfo_mode)); | |
| 4755 | |
| 4756 return (MDI_SUCCESS); | |
| 4757 } | |
| 4758 | |
| 4759 /* | |
| 4760 * Form the kstat name and and call mdi_pi_kstat_create() | |
| 4761 */ | |
| 4762 void | |
| 4763 vhci_kstat_create_pathinfo(mdi_pathinfo_t *pip) | |
| 4764 { | |
| 4765 dev_info_t *tgt_dip; | |
| 4766 dev_info_t *pdip; | |
| 4767 char *guid; | |
| 4768 char *target_port, *target_port_dup; | |
| 4769 char ks_name[KSTAT_STRLEN]; | |
| 4770 uint_t pid; | |
| 4771 int by_id; | |
| 4772 mod_hash_val_t hv; | |
| 4773 | |
| 4774 | |
| 4775 /* return if we have already allocated kstats */ | |
| 4776 if (mdi_pi_kstat_exists(pip)) | |
| 4777 return; | |
| 4778 | |
| 4779 /* | |
| 4780 * We need instance numbers to create a kstat name, return if we don't | |
| 4781 * have instance numbers assigned yet. | |
| 4782 */ | |
| 4783 tgt_dip = mdi_pi_get_client(pip); | |
| 4784 pdip = mdi_pi_get_phci(pip); | |
| 4785 if ((ddi_get_instance(tgt_dip) == -1) || (ddi_get_instance(pdip) == -1)) | |
| 4786 return; | |
| 4787 | |
| 4788 /* | |
| 4789 * A path oriented kstat has a ks_name of the form: | |
| 4790 * | |
| 4791 * <client-driver><instance>.t<pid>.<pHCI-driver><instance> | |
| 4792 * | |
| 4793 * We maintain a bidirectional 'target-port' to <pid> map, | |
| 4794 * called targetmap. All pathinfo nodes with the same | |
| 4795 * 'target-port' map to the same <pid>. The iostat(1M) code, | |
| 4796 * when parsing a path oriented kstat name, uses the <pid> as | |
| 4797 * a SCSI_VHCI_GET_TARGET_LONGNAME ioctl argument in order | |
| 4798 * to get the 'target-port'. For KSTAT_FLAG_PERSISTENT kstats, | |
| 4799 * this ioctl needs to translate a <pid> to a 'target-port' | |
| 4800 * even after all pathinfo nodes associated with the | |
| 4801 * 'target-port' have been destroyed. This is needed to support | |
| 4802 * consistent first-iteration activity-since-boot iostat(1M) | |
| 4803 * output. Because of this requirement, the mapping can't be | |
| 4804 * based on pathinfo information in a devinfo snapshot. | |
| 4805 */ | |
| 4806 | |
| 4807 /* determine 'target-port' */ | |
| 4808 if (mdi_prop_lookup_string(pip, | |
| 4809 "target-port", &target_port) == MDI_SUCCESS) { | |
| 4810 target_port_dup = i_ddi_strdup(target_port, KM_SLEEP); | |
| 4811 (void) mdi_prop_free(target_port); | |
| 4812 by_id = 1; | |
| 4813 } else { | |
| 4814 /* | |
| 4815 * If the pHCI did not set up 'target-port' on this | |
| 4816 * pathinfo node, assume that our client is the only | |
| 4817 * one with paths to the device by using the guid | |
| 4818 * value as the 'target-port'. Since no other client | |
| 4819 * will have the same guid, no other client will use | |
| 4820 * the same <pid>. NOTE: a client with an instance | |
| 4821 * number always has a guid. | |
| 4822 */ | |
| 4823 (void) ddi_prop_lookup_string(DDI_DEV_T_ANY, tgt_dip, | |
| 4824 PROPFLAGS, MDI_CLIENT_GUID_PROP, &guid); | |
| 4825 target_port_dup = i_ddi_strdup(guid, KM_SLEEP); | |
| 4826 ddi_prop_free(guid); | |
| 4827 | |
| 4828 /* | |
| 4829 * For this type of mapping we don't want the | |
| 4830 * <id> -> 'target-port' mapping to be made. This | |
| 4831 * will cause the SCSI_VHCI_GET_TARGET_LONGNAME ioctl | |
| 4832 * to fail, and the iostat(1M) long '-n' output will | |
| 4833 * still use the <pid>. We do this because we just | |
| 4834 * made up the 'target-port' using the guid, and we | |
| 4835 * don't want to expose that fact in iostat output. | |
| 4836 */ | |
| 4837 by_id = 0; | |
| 4838 } | |
| 4839 | |
| 4840 /* find/establish <pid> given 'target-port' */ | |
| 4841 mutex_enter(&vhci_targetmap_mutex); | |
| 4842 if (mod_hash_find(vhci_targetmap_byport, | |
| 4843 (mod_hash_key_t)target_port_dup, &hv) == 0) { | |
| 4844 pid = (int)(intptr_t)hv; /* mapping exists */ | |
| 4845 } else { | |
| 4846 pid = vhci_targetmap_pid++; /* new mapping */ | |
| 4847 | |
| 4848 (void) mod_hash_insert(vhci_targetmap_byport, | |
| 4849 (mod_hash_key_t)target_port_dup, | |
| 4850 (mod_hash_val_t)(intptr_t)pid); | |
| 4851 if (by_id) { | |
| 4852 (void) mod_hash_insert(vhci_targetmap_bypid, | |
| 4853 (mod_hash_key_t)(uintptr_t)pid, | |
| 4854 (mod_hash_val_t)(uintptr_t)target_port_dup); | |
| 4855 } | |
| 4856 target_port_dup = NULL; /* owned by hash */ | |
| 4857 } | |
| 4858 mutex_exit(&vhci_targetmap_mutex); | |
| 4859 | |
| 4860 /* form kstat name */ | |
| 4861 (void) snprintf(ks_name, KSTAT_STRLEN, "%s%d.t%d.%s%d", | |
| 4862 ddi_driver_name(tgt_dip), ddi_get_instance(tgt_dip), | |
| 4863 pid, ddi_driver_name(pdip), ddi_get_instance(pdip)); | |
| 4864 | |
| 4865 VHCI_DEBUG(1, (CE_NOTE, NULL, "!vhci_path_online: path:%p " | |
| 4866 "kstat %s: pid %x <-> port %s\n", (void *)pip, | |
| 4867 ks_name, pid, target_port_dup)); | |
| 4868 if (target_port_dup) | |
| 4869 kmem_free(target_port_dup, strlen(target_port_dup) + 1); | |
| 4870 | |
| 4871 /* call mdi to create kstats with the name we built */ | |
| 4872 (void) mdi_pi_kstat_create(pip, ks_name); | |
| 4873 } | |
| 4874 | |
| 4875 /* ARGSUSED */ | |
| 4876 static int | |
| 4877 vhci_pathinfo_online(dev_info_t *vdip, mdi_pathinfo_t *pip, int flags) | |
| 4878 { | |
| 4879 scsi_hba_tran_t *hba = NULL; | |
| 4880 struct scsi_device *psd = NULL; | |
| 4881 scsi_vhci_lun_t *vlun = NULL; | |
| 4882 dev_info_t *pdip = NULL; | |
| 4883 dev_info_t *tgt_dip; | |
| 4884 struct scsi_vhci *vhci; | |
| 4885 char *guid; | |
| 4886 struct scsi_failover *sf; | |
| 4887 struct scsi_failover_ops *sfo; | |
|
7399
9d7357dfac4a
6636264 Memory leak in vhci_pathinfo_online in Nevada build 78
wl202157@chogori
parents:
7201
diff
changeset
|
4888 char *sfo_name; |
| 4851 | 4889 char *override; |
| 4890 scsi_vhci_priv_t *svp = NULL; | |
| 4891 struct buf *bp; | |
| 4892 struct scsi_address *ap; | |
| 4893 struct scsi_pkt *pkt; | |
| 4894 int rval = MDI_FAILURE; | |
| 4895 uint_t inq_size = VHCI_STD_INQ_SIZE; | |
| 4896 mpapi_item_list_t *list_ptr; | |
| 4897 mpapi_lu_data_t *ld; | |
| 4898 | |
| 4899 ASSERT(vdip != NULL); | |
| 4900 ASSERT(pip != NULL); | |
| 4901 | |
| 4902 vhci = ddi_get_soft_state(vhci_softstate, ddi_get_instance(vdip)); | |
| 4903 ASSERT(vhci != NULL); | |
| 4904 | |
| 4905 pdip = mdi_pi_get_phci(pip); | |
| 4906 hba = ddi_get_driver_private(pdip); | |
| 4907 ASSERT(hba != NULL); | |
| 4908 | |
| 4909 svp = (scsi_vhci_priv_t *)mdi_pi_get_vhci_private(pip); | |
| 4910 ASSERT(svp != NULL); | |
| 4911 | |
| 4912 tgt_dip = mdi_pi_get_client(pip); | |
| 4913 ASSERT(tgt_dip != NULL); | |
| 4914 if (ddi_prop_lookup_string(DDI_DEV_T_ANY, tgt_dip, PROPFLAGS, | |
| 4915 MDI_CLIENT_GUID_PROP, &guid) != DDI_SUCCESS) { | |
| 4916 VHCI_DEBUG(1, (CE_WARN, NULL, "vhci_path_online: lun guid " | |
| 4917 "property failed")); | |
| 4918 goto failure; | |
| 4919 } | |
| 4920 | |
| 4921 vlun = vhci_lun_lookup(tgt_dip); | |
| 4922 ASSERT(vlun != NULL); | |
| 4923 | |
| 4924 ddi_prop_free(guid); | |
| 4925 | |
| 4926 vlun->svl_dip = mdi_pi_get_client(pip); | |
| 4927 ASSERT(vlun->svl_dip != NULL); | |
| 4928 | |
| 4929 psd = svp->svp_psd; | |
| 4930 ASSERT(psd != NULL); | |
| 4931 | |
| 4932 /* | |
|
6023
9adf47ae28c4
6634757 add support for the HDS midrange array subsystem
cm136836
parents:
4949
diff
changeset
|
4933 * For INQUIRY response buffer size, we use VHCI_STD_INQ_SIZE(132bytes) |
| 4851 | 4934 * instead of SUN_INQSIZE(48bytes) which is used in sd layer. This is |
| 4935 * because we could get the Vendor specific parameters(present 97th | |
| 4936 * byte onwards) which are required to process Vendor specific data | |
| 4937 * based on array type. | |
| 4938 * This INQUIRY buffer is freed in vhci_pathinfo_offline but NEVER | |
| 4939 * in a different layer like sd/phci transport. In other words, vhci | |
| 4940 * maintains its own copy of scsi_device and scsi_inquiry data on a | |
| 4941 * per-path basis. | |
| 4942 */ | |
| 4943 if (psd->sd_inq == NULL) { | |
| 4944 psd->sd_inq = (struct scsi_inquiry *) | |
| 4945 kmem_zalloc(inq_size, KM_SLEEP); | |
| 4946 } | |
| 4947 | |
| 4948 tgt_dip = psd->sd_dev; | |
| 4949 ASSERT(tgt_dip != NULL); | |
| 4950 | |
| 4951 /* | |
| 4952 * do inquiry to pass into probe routine; this | |
| 4953 * will avoid each probe routine doing scsi inquiry | |
| 4954 */ | |
| 4955 bp = getrbuf(KM_SLEEP); | |
| 4956 bp->b_un.b_addr = (caddr_t)psd->sd_inq; | |
| 4957 bp->b_flags = B_READ; | |
| 4958 bp->b_bcount = inq_size; | |
| 4959 bp->b_resid = 0; | |
| 4960 | |
| 4961 ap = &psd->sd_address; | |
| 4962 pkt = scsi_init_pkt(ap, NULL, bp, CDB_GROUP0, | |
| 4963 sizeof (struct scsi_arq_status), 0, 0, SLEEP_FUNC, NULL); | |
| 4964 if (pkt == NULL) { | |
| 4965 VHCI_DEBUG(1, (CE_NOTE, NULL, "!vhci_pathinfo_online: " | |
| 4966 "Inquiry init_pkt failed :%p\n", (void *)pip)); | |
| 4967 rval = MDI_FAILURE; | |
| 4968 goto failure; | |
| 4969 } | |
| 4970 pkt->pkt_cdbp[0] = SCMD_INQUIRY; | |
| 4971 pkt->pkt_cdbp[4] = (uchar_t)inq_size; | |
| 4972 pkt->pkt_time = 60; | |
| 4973 | |
| 4974 rval = vhci_do_scsi_cmd(pkt); | |
| 4975 scsi_destroy_pkt(pkt); | |
| 4976 freerbuf(bp); | |
| 4977 if (rval == 0) { | |
| 4978 VHCI_DEBUG(1, (CE_NOTE, NULL, "!vhci_pathinfo_online: " | |
| 4979 "Failover Inquiry failed path:%p rval:%x\n", | |
| 4980 (void *)pip, rval)); | |
| 4981 rval = MDI_FAILURE; | |
| 4982 goto failure; | |
| 4983 } | |
| 4984 | |
| 4985 /* | |
| 4986 * Determine if device is supported under scsi_vhci, and select | |
| 4987 * failover module. | |
| 4988 * | |
| 4989 * See if there is a scsi_vhci.conf file override for this devices's | |
| 4990 * VID/PID. The following values can be returned: | |
| 4991 * | |
| 4992 * NULL If the NULL is returned then there is no scsi_vhci.conf | |
| 4993 * override. For NULL, we determine the failover_ops for | |
| 4994 * this device by checking the sfo_device_probe entry | |
| 4995 * point for each 'fops' module, in order. | |
| 4996 * | |
| 4997 * NOTE: Correct operation may depend on module ordering | |
| 4998 * of 'specific' (failover modules that are completely | |
| 4999 * VID/PID table based) to 'generic' (failover modules | |
| 5000 * that based on T10 standards like TPGS). Currently, | |
| 5001 * the value of 'ddi-forceload' in scsi_vhci.conf is used | |
| 5002 * to establish the module list and probe order. | |
| 5003 * | |
| 5004 * "NONE" If value "NONE" is returned then there is a | |
| 5005 * scsi_vhci.conf VID/PID override to indicate the device | |
| 5006 * should not be supported under scsi_vhci (even if there | |
| 5007 * is an 'fops' module supporting the device). | |
| 5008 * | |
| 5009 * "<other>" If another value is returned then that value is the | |
| 5010 * name of the 'fops' module that should be used. | |
| 5011 */ | |
| 5012 sfo = NULL; /* "NONE" */ | |
|
7399
9d7357dfac4a
6636264 Memory leak in vhci_pathinfo_online in Nevada build 78
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parents:
7201
diff
changeset
|
5013 sfo_name = NULL; |
| 4851 | 5014 override = scsi_get_device_type_string( |
| 5015 "scsi-vhci-failover-override", vdip, psd); | |
| 5016 | |
| 5017 if (override == NULL) { | |
| 5018 /* NULL: default: select based on sfo_device_probe results */ | |
| 5019 for (sf = scsi_failover_table; sf->sf_mod; sf++) { | |
| 5020 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
|
5021 sf->sf_sfo->sfo_device_probe(psd, psd->sd_inq, |
|
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
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6777
diff
changeset
|
5022 &vlun->svl_fops_ctpriv) == SFO_DEVICE_PROBE_PHCI) |
| 4851 | 5023 continue; |
| 5024 | |
| 5025 /* found failover module, supported under scsi_vhci */ | |
| 5026 sfo = sf->sf_sfo; | |
|
7399
9d7357dfac4a
6636264 Memory leak in vhci_pathinfo_online in Nevada build 78
wl202157@chogori
parents:
7201
diff
changeset
|
5027 sfo_name = i_ddi_strdup(sfo->sfo_name, KM_SLEEP); |
| 4851 | 5028 break; |
| 5029 } | |
|
6941
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
rralphs
parents:
6777
diff
changeset
|
5030 } else if (strcasecmp(override, "NONE")) { |
| 4851 | 5031 /* !"NONE": select based on driver.conf specified name */ |
| 5032 for (sf = scsi_failover_table, sfo = NULL; sf->sf_mod; sf++) { | |
| 5033 if ((sf->sf_sfo == NULL) || | |
| 5034 (sf->sf_sfo->sfo_name == NULL) || | |
| 5035 strcmp(override, sf->sf_sfo->sfo_name)) | |
| 5036 continue; | |
| 5037 | |
| 5038 /* found failover module, supported under scsi_vhci */ | |
| 5039 sfo = sf->sf_sfo; | |
|
7399
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6636264 Memory leak in vhci_pathinfo_online in Nevada build 78
wl202157@chogori
parents:
7201
diff
changeset
|
5040 sfo_name = kmem_alloc(strlen("conf ") + |
| 4851 | 5041 strlen(sfo->sfo_name) + 1, KM_SLEEP); |
|
7399
9d7357dfac4a
6636264 Memory leak in vhci_pathinfo_online in Nevada build 78
wl202157@chogori
parents:
7201
diff
changeset
|
5042 (void) sprintf(sfo_name, "conf %s", sfo->sfo_name); |
| 4851 | 5043 break; |
| 5044 } | |
| 5045 } | |
| 5046 if (override) | |
| 5047 kmem_free(override, strlen(override) + 1); | |
| 5048 | |
| 5049 if (sfo == NULL) { | |
| 5050 /* no failover module - device not supported */ | |
| 5051 VHCI_DEBUG(1, (CE_NOTE, vhci->vhci_dip, | |
| 5052 "!vhci_pathinfo_online: dev (path 0x%p) not " | |
| 5053 "supported\n", (void *)pip)); | |
| 5054 vlun->svl_not_supported = 1; | |
| 5055 rval = MDI_NOT_SUPPORTED; | |
| 5056 goto done; | |
| 5057 } | |
| 5058 | |
| 5059 /* failover supported for device - save failover_ops in vlun */ | |
| 5060 vlun->svl_fops = sfo; | |
|
7399
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6636264 Memory leak in vhci_pathinfo_online in Nevada build 78
wl202157@chogori
parents:
7201
diff
changeset
|
5061 ASSERT(sfo_name != NULL); |
|
9d7357dfac4a
6636264 Memory leak in vhci_pathinfo_online in Nevada build 78
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parents:
7201
diff
changeset
|
5062 /* 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
parents:
7201
diff
changeset
|
5063 /* been set one, a vlun has more than one path, the function */ |
|
9d7357dfac4a
6636264 Memory leak in vhci_pathinfo_online in Nevada build 78
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parents:
7201
diff
changeset
|
5064 /* vhci_pathinfo_online() will be invoked when each path comes */ |
|
9d7357dfac4a
6636264 Memory leak in vhci_pathinfo_online in Nevada build 78
wl202157@chogori
parents:
7201
diff
changeset
|
5065 /* 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
|
5066 if (vlun->svl_fops_name) { |
|
9d7357dfac4a
6636264 Memory leak in vhci_pathinfo_online in Nevada build 78
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parents:
7201
diff
changeset
|
5067 kmem_free(vlun->svl_fops_name, |
|
9d7357dfac4a
6636264 Memory leak in vhci_pathinfo_online in Nevada build 78
wl202157@chogori
parents:
7201
diff
changeset
|
5068 strlen(vlun->svl_fops_name) + 1); |
|
9d7357dfac4a
6636264 Memory leak in vhci_pathinfo_online in Nevada build 78
wl202157@chogori
parents:
7201
diff
changeset
|
5069 } |
|
9d7357dfac4a
6636264 Memory leak in vhci_pathinfo_online in Nevada build 78
wl202157@chogori
parents:
7201
diff
changeset
|
5070 vlun->svl_fops_name = sfo_name; |
| 4851 | 5071 |
| 5072 /* | |
| 5073 * Obtain the device-type based mpxio options as specified in | |
| 5074 * scsi_vhci.conf file. | |
| 5075 * | |
| 5076 * NOTE: currently, the end result is a call to | |
| 5077 * mdi_set_lb_region_size(). | |
| 5078 */ | |
| 5079 vhci_get_device_type_mpxio_options(vdip, tgt_dip, psd); | |
| 5080 | |
| 5081 /* | |
|
6941
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
rralphs
parents:
6777
diff
changeset
|
5082 * 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
|
5083 * lb policy, save the current value. |
|
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
rralphs
parents:
6777
diff
changeset
|
5084 */ |
|
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
rralphs
parents:
6777
diff
changeset
|
5085 vlun->svl_lb_policy_save = mdi_get_lb_policy(tgt_dip); |
|
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
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diff
changeset
|
5086 |
|
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
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diff
changeset
|
5087 /* |
| 4851 | 5088 * if PGR is active, revalidate key and register on this path also, |
| 5089 * if key is still valid | |
| 5090 */ | |
| 5091 sema_p(&vlun->svl_pgr_sema); | |
| 5092 if (vlun->svl_pgr_active) { | |
| 5093 rval = vhci_pgr_validate_and_register(svp); | |
| 5094 if (rval != 1) { | |
| 5095 rval = MDI_FAILURE; | |
| 5096 sema_v(&vlun->svl_pgr_sema); | |
| 5097 goto failure; | |
| 5098 } | |
| 5099 } | |
| 5100 sema_v(&vlun->svl_pgr_sema); | |
| 5101 | |
| 5102 if (svp->svp_new_path) { | |
| 5103 /* | |
| 5104 * Last chance to perform any cleanup operations on this | |
| 5105 * new path before making this path completely online. | |
| 5106 */ | |
| 5107 svp->svp_new_path = 0; | |
| 5108 | |
| 5109 /* | |
| 5110 * If scsi_vhci knows the lun is alread RESERVE'd, | |
| 5111 * then skip the issue of RELEASE on new path. | |
| 5112 */ | |
| 5113 if ((vlun->svl_flags & VLUN_RESERVE_ACTIVE_FLG) == 0) { | |
| 5114 /* | |
| 5115 * Issue SCSI-2 RELEASE only for the first time on | |
| 5116 * a new path just in case the host rebooted and | |
| 5117 * a reservation is still pending on this path. | |
| 5118 * IBM Shark storage does not clear RESERVE upon | |
| 5119 * host reboot. | |
| 5120 */ | |
| 5121 ap = &psd->sd_address; | |
| 5122 pkt = scsi_init_pkt(ap, NULL, NULL, CDB_GROUP0, | |
| 5123 sizeof (struct scsi_arq_status), 0, 0, | |
| 5124 SLEEP_FUNC, NULL); | |
| 5125 if (pkt == NULL) { | |
| 5126 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
| 5127 "!vhci_pathinfo_online: " | |
| 5128 "Release init_pkt failed :%p\n", | |
| 5129 (void *)pip)); | |
| 5130 rval = MDI_FAILURE; | |
| 5131 goto failure; | |
| 5132 } | |
| 5133 pkt->pkt_cdbp[0] = SCMD_RELEASE; | |
| 5134 pkt->pkt_time = 60; | |
| 5135 | |
| 5136 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
| 5137 "!vhci_path_online: path:%p " | |
| 5138 "Issued SCSI-2 RELEASE\n", (void *)pip)); | |
| 5139 | |
| 5140 /* Ignore the return value */ | |
| 5141 (void) vhci_do_scsi_cmd(pkt); | |
| 5142 scsi_destroy_pkt(pkt); | |
| 5143 } | |
| 5144 } | |
| 5145 | |
| 5146 rval = vhci_update_pathinfo(psd, pip, sfo, vlun, vhci); | |
| 5147 if (rval == MDI_FAILURE) { | |
| 5148 goto failure; | |
| 5149 } | |
| 5150 | |
| 5151 /* Initialize MP-API data */ | |
| 5152 vhci_update_mpapi_data(vhci, vlun, pip); | |
| 5153 | |
| 5154 /* | |
| 5155 * MP-API also needs the Inquiry data to be maintained in the | |
| 5156 * mp_vendor_prop_t structure, so find the lun and update its | |
| 5157 * structure with this data. | |
| 5158 */ | |
| 5159 list_ptr = (mpapi_item_list_t *)vhci_get_mpapi_item(vhci, NULL, | |
| 5160 MP_OBJECT_TYPE_MULTIPATH_LU, (void *)vlun); | |
| 5161 ld = (mpapi_lu_data_t *)list_ptr->item->idata; | |
| 5162 if (ld != NULL) { | |
| 5163 bcopy(psd->sd_inq->inq_vid, ld->prop.prodInfo.vendor, 8); | |
| 5164 bcopy(psd->sd_inq->inq_pid, ld->prop.prodInfo.product, 16); | |
| 5165 bcopy(psd->sd_inq->inq_revision, ld->prop.prodInfo.revision, 4); | |
| 5166 } else { | |
| 5167 VHCI_DEBUG(1, (CE_WARN, NULL, "!vhci_pathinfo_online: " | |
| 5168 "mpapi_lu_data_t is NULL")); | |
| 5169 } | |
| 5170 | |
| 5171 /* create kstats for path */ | |
| 5172 vhci_kstat_create_pathinfo(pip); | |
| 5173 | |
| 5174 done: | |
| 5175 mutex_enter(&vhci_global_mutex); | |
| 5176 cv_broadcast(&vhci_cv); | |
| 5177 mutex_exit(&vhci_global_mutex); | |
| 5178 | |
| 5179 if (vlun->svl_setcap_done) { | |
| 5180 (void) vhci_pHCI_cap(ap, "sector-size", | |
| 5181 vlun->svl_sector_size, 1, pip); | |
| 5182 } | |
| 5183 | |
| 5184 VHCI_DEBUG(1, (CE_NOTE, NULL, "!vhci_path_online: path:%p\n", | |
| 5185 (void *)pip)); | |
| 5186 | |
| 5187 failure: | |
| 5188 if ((rval != MDI_SUCCESS) && psd->sd_inq) { | |
| 5189 kmem_free((caddr_t)psd->sd_inq, inq_size); | |
| 5190 psd->sd_inq = (struct scsi_inquiry *)NULL; | |
| 5191 } | |
| 5192 return (rval); | |
| 5193 } | |
| 5194 | |
| 5195 /* | |
| 5196 * path offline handler. Release all bindings that will not be | |
| 5197 * released by the normal packet transport/completion code path. | |
| 5198 * Since we don't (presently) keep any bindings alive outside of | |
| 5199 * the in-transport packets (which will be released on completion) | |
| 5200 * there is not much to do here. | |
| 5201 */ | |
| 5202 /* ARGSUSED */ | |
| 5203 static int | |
| 5204 vhci_pathinfo_offline(dev_info_t *vdip, mdi_pathinfo_t *pip, int flags) | |
| 5205 { | |
| 5206 scsi_hba_tran_t *hba = NULL; | |
| 5207 struct scsi_device *psd = NULL; | |
| 5208 dev_info_t *pdip = NULL; | |
| 5209 dev_info_t *cdip = NULL; | |
| 5210 scsi_vhci_priv_t *svp = NULL; | |
| 5211 uint_t inq_size = VHCI_STD_INQ_SIZE; | |
| 5212 | |
| 5213 ASSERT(vdip != NULL); | |
| 5214 ASSERT(pip != NULL); | |
| 5215 | |
| 5216 pdip = mdi_pi_get_phci(pip); | |
| 5217 ASSERT(pdip != NULL); | |
| 5218 if (pdip == NULL) { | |
| 5219 VHCI_DEBUG(1, (CE_WARN, vdip, "Invalid path 0x%p: NULL " | |
| 5220 "phci dip", (void *)pip)); | |
| 5221 return (MDI_FAILURE); | |
| 5222 } | |
| 5223 | |
| 5224 cdip = mdi_pi_get_client(pip); | |
| 5225 ASSERT(cdip != NULL); | |
| 5226 if (cdip == NULL) { | |
| 5227 VHCI_DEBUG(1, (CE_WARN, vdip, "Invalid path 0x%p: NULL " | |
| 5228 "client dip", (void *)pip)); | |
| 5229 return (MDI_FAILURE); | |
| 5230 } | |
| 5231 | |
| 5232 hba = ddi_get_driver_private(pdip); | |
| 5233 ASSERT(hba != NULL); | |
| 5234 | |
| 5235 svp = (scsi_vhci_priv_t *)mdi_pi_get_vhci_private(pip); | |
| 5236 if (svp == NULL) { | |
| 5237 /* | |
| 5238 * mdi_pathinfo node in INIT state can have vHCI private | |
| 5239 * information set to null | |
| 5240 */ | |
| 5241 VHCI_DEBUG(1, (CE_NOTE, vdip, "!vhci_pathinfo_offline: " | |
| 5242 "svp is NULL for pip 0x%p\n", (void *)pip)); | |
| 5243 return (MDI_SUCCESS); | |
| 5244 } | |
| 5245 | |
| 5246 psd = svp->svp_psd; | |
| 5247 ASSERT(psd != NULL); | |
| 5248 | |
| 5249 mutex_enter(&svp->svp_mutex); | |
| 5250 | |
| 5251 VHCI_DEBUG(1, (CE_NOTE, vdip, "!vhci_pathinfo_offline: " | |
| 5252 "%d cmds pending on path: 0x%p\n", svp->svp_cmds, (void *)pip)); | |
| 5253 while (svp->svp_cmds != 0) { | |
| 5254 if (cv_timedwait(&svp->svp_cv, &svp->svp_mutex, | |
| 5255 ddi_get_lbolt() + | |
| 5256 drv_usectohz(vhci_path_quiesce_timeout * 1000000)) == -1) { | |
| 5257 /* | |
| 5258 * The timeout time reached without the condition | |
| 5259 * being signaled. | |
| 5260 */ | |
| 5261 VHCI_DEBUG(1, (CE_NOTE, vdip, "!vhci_pathinfo_offline: " | |
| 5262 "Timeout reached on path 0x%p without the cond\n", | |
| 5263 (void *)pip)); | |
| 5264 VHCI_DEBUG(1, (CE_NOTE, vdip, "!vhci_pathinfo_offline: " | |
| 5265 "%d cmds still pending on path: 0x%p\n", | |
| 5266 svp->svp_cmds, (void *)pip)); | |
| 5267 break; | |
| 5268 } | |
| 5269 } | |
| 5270 mutex_exit(&svp->svp_mutex); | |
| 5271 | |
| 5272 /* | |
| 5273 * Check to see if this vlun has an active SCSI-II RESERVE. And this | |
| 5274 * is the pip for the path that has been reserved. | |
| 5275 * If so clear the reservation by sending a reset, so the host will not | |
| 5276 * get a reservation conflict. Reset the flag VLUN_RESERVE_ACTIVE_FLG | |
| 5277 * for this lun. Also a reset notify is sent to the target driver | |
| 5278 * just in case the POR check condition is cleared by some other layer | |
| 5279 * in the stack. | |
| 5280 */ | |
| 5281 if (svp->svp_svl->svl_flags & VLUN_RESERVE_ACTIVE_FLG) { | |
| 5282 if (pip == svp->svp_svl->svl_resrv_pip) { | |
| 5283 if (vhci_recovery_reset(svp->svp_svl, | |
| 5284 &svp->svp_psd->sd_address, TRUE, | |
| 5285 VHCI_DEPTH_TARGET) == 0) { | |
| 5286 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
| 5287 "!vhci_pathinfo_offline (pip:%p):" | |
| 5288 "reset failed, retrying\n", (void *)pip)); | |
| 5289 delay(1*drv_usectohz(1000000)); | |
| 5290 if (vhci_recovery_reset(svp->svp_svl, | |
| 5291 &svp->svp_psd->sd_address, TRUE, | |
| 5292 VHCI_DEPTH_TARGET) == 0) { | |
| 5293 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
| 5294 "!vhci_pathinfo_offline " | |
| 5295 "(pip:%p): reset failed, " | |
| 5296 "giving up!\n", (void *)pip)); | |
| 5297 } | |
| 5298 } | |
| 5299 svp->svp_svl->svl_flags &= ~VLUN_RESERVE_ACTIVE_FLG; | |
| 5300 } | |
| 5301 } | |
| 5302 | |
| 5303 mdi_pi_set_state(pip, MDI_PATHINFO_STATE_OFFLINE); | |
| 5304 if (psd->sd_inq) { | |
| 5305 kmem_free((caddr_t)psd->sd_inq, inq_size); | |
| 5306 psd->sd_inq = (struct scsi_inquiry *)NULL; | |
| 5307 } | |
| 5308 vhci_mpapi_set_path_state(vdip, pip, MP_DRVR_PATH_STATE_REMOVED); | |
| 5309 | |
| 5310 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
| 5311 "!vhci_pathinfo_offline: offlined path 0x%p\n", (void *)pip)); | |
| 5312 return (MDI_SUCCESS); | |
| 5313 } | |
| 5314 | |
| 5315 | |
| 5316 /* | |
| 5317 * routine for SCSI VHCI IOCTL implementation. | |
| 5318 */ | |
| 5319 /* ARGSUSED */ | |
| 5320 static int | |
| 5321 vhci_ctl(dev_t dev, int cmd, intptr_t data, int mode, cred_t *credp, int *rval) | |
| 5322 { | |
| 5323 struct scsi_vhci *vhci; | |
| 5324 dev_info_t *vdip; | |
| 5325 mdi_pathinfo_t *pip; | |
| 5326 int instance, held; | |
| 5327 int retval = 0; | |
| 5328 caddr_t phci_path = NULL, client_path = NULL; | |
| 5329 caddr_t paddr = NULL; | |
| 5330 sv_iocdata_t ioc; | |
| 5331 sv_iocdata_t *pioc = &ioc; | |
| 5332 sv_switch_to_cntlr_iocdata_t iocsc; | |
| 5333 sv_switch_to_cntlr_iocdata_t *piocsc = &iocsc; | |
| 5334 caddr_t s; | |
| 5335 scsi_vhci_lun_t *vlun; | |
| 5336 struct scsi_failover_ops *fo; | |
| 5337 char *pclass; | |
| 5338 | |
| 5339 /* Check for validity of vhci structure */ | |
| 5340 vhci = ddi_get_soft_state(vhci_softstate, MINOR2INST(getminor(dev))); | |
| 5341 if (vhci == NULL) { | |
| 5342 return (ENXIO); | |
| 5343 } | |
| 5344 | |
| 5345 mutex_enter(&vhci->vhci_mutex); | |
| 5346 if ((vhci->vhci_state & VHCI_STATE_OPEN) == 0) { | |
| 5347 mutex_exit(&vhci->vhci_mutex); | |
| 5348 return (ENXIO); | |
| 5349 } | |
| 5350 mutex_exit(&vhci->vhci_mutex); | |
| 5351 | |
| 5352 /* Get the vhci dip */ | |
| 5353 vdip = vhci->vhci_dip; | |
| 5354 ASSERT(vdip != NULL); | |
| 5355 instance = ddi_get_instance(vdip); | |
| 5356 | |
| 5357 /* Allocate memory for getting parameters from userland */ | |
| 5358 phci_path = kmem_zalloc(MAXPATHLEN, KM_SLEEP); | |
| 5359 client_path = kmem_zalloc(MAXPATHLEN, KM_SLEEP); | |
| 5360 paddr = kmem_zalloc(MAXNAMELEN, KM_SLEEP); | |
| 5361 | |
| 5362 /* | |
| 5363 * Set a local variable indicating the ioctl name. Used for | |
| 5364 * printing debug strings. | |
| 5365 */ | |
| 5366 switch (cmd) { | |
| 5367 case SCSI_VHCI_GET_CLIENT_MULTIPATH_INFO: | |
| 5368 s = "GET_CLIENT_MULTIPATH_INFO"; | |
| 5369 break; | |
| 5370 | |
| 5371 case SCSI_VHCI_GET_PHCI_MULTIPATH_INFO: | |
| 5372 s = "GET_PHCI_MULTIPATH_INFO"; | |
| 5373 break; | |
| 5374 | |
| 5375 case SCSI_VHCI_GET_CLIENT_NAME: | |
| 5376 s = "GET_CLIENT_NAME"; | |
| 5377 break; | |
| 5378 | |
| 5379 case SCSI_VHCI_PATH_ONLINE: | |
| 5380 s = "PATH_ONLINE"; | |
| 5381 break; | |
| 5382 | |
| 5383 case SCSI_VHCI_PATH_OFFLINE: | |
| 5384 s = "PATH_OFFLINE"; | |
| 5385 break; | |
| 5386 | |
| 5387 case SCSI_VHCI_PATH_STANDBY: | |
| 5388 s = "PATH_STANDBY"; | |
| 5389 break; | |
| 5390 | |
| 5391 case SCSI_VHCI_PATH_TEST: | |
| 5392 s = "PATH_TEST"; | |
| 5393 break; | |
| 5394 | |
| 5395 case SCSI_VHCI_SWITCH_TO_CNTLR: | |
| 5396 s = "SWITCH_TO_CNTLR"; | |
| 5397 break; | |
| 5398 case SCSI_VHCI_PATH_DISABLE: | |
| 5399 s = "PATH_DISABLE"; | |
| 5400 break; | |
| 5401 case SCSI_VHCI_PATH_ENABLE: | |
| 5402 s = "PATH_ENABLE"; | |
| 5403 break; | |
| 5404 | |
| 5405 case SCSI_VHCI_GET_TARGET_LONGNAME: | |
| 5406 s = "GET_TARGET_LONGNAME"; | |
| 5407 break; | |
| 5408 | |
| 5409 #ifdef DEBUG | |
| 5410 case SCSI_VHCI_CONFIGURE_PHCI: | |
| 5411 s = "CONFIGURE_PHCI"; | |
| 5412 break; | |
| 5413 | |
| 5414 case SCSI_VHCI_UNCONFIGURE_PHCI: | |
| 5415 s = "UNCONFIGURE_PHCI"; | |
| 5416 break; | |
| 5417 #endif | |
| 5418 | |
| 5419 default: | |
| 5420 s = "Unknown"; | |
| 5421 vhci_log(CE_NOTE, vdip, | |
| 5422 "!vhci%d: ioctl %x (unsupported ioctl)", instance, cmd); | |
| 5423 retval = ENOTSUP; | |
| 5424 break; | |
| 5425 } | |
| 5426 if (retval != 0) { | |
| 5427 goto end; | |
| 5428 } | |
| 5429 | |
| 5430 VHCI_DEBUG(6, (CE_WARN, vdip, "!vhci%d: ioctl <%s>", instance, s)); | |
| 5431 | |
| 5432 /* | |
| 5433 * Get IOCTL parameters from userland | |
| 5434 */ | |
| 5435 switch (cmd) { | |
| 5436 case SCSI_VHCI_GET_CLIENT_MULTIPATH_INFO: | |
| 5437 case SCSI_VHCI_GET_PHCI_MULTIPATH_INFO: | |
| 5438 case SCSI_VHCI_GET_CLIENT_NAME: | |
| 5439 case SCSI_VHCI_PATH_ONLINE: | |
| 5440 case SCSI_VHCI_PATH_OFFLINE: | |
| 5441 case SCSI_VHCI_PATH_STANDBY: | |
| 5442 case SCSI_VHCI_PATH_TEST: | |
| 5443 case SCSI_VHCI_PATH_DISABLE: | |
| 5444 case SCSI_VHCI_PATH_ENABLE: | |
| 5445 case SCSI_VHCI_GET_TARGET_LONGNAME: | |
| 5446 #ifdef DEBUG | |
| 5447 case SCSI_VHCI_CONFIGURE_PHCI: | |
| 5448 case SCSI_VHCI_UNCONFIGURE_PHCI: | |
| 5449 #endif | |
| 5450 retval = vhci_get_iocdata((const void *)data, pioc, mode, s); | |
| 5451 break; | |
| 5452 | |
| 5453 case SCSI_VHCI_SWITCH_TO_CNTLR: | |
| 5454 retval = vhci_get_iocswitchdata((const void *)data, piocsc, | |
| 5455 mode, s); | |
| 5456 break; | |
| 5457 } | |
| 5458 if (retval != 0) { | |
| 5459 goto end; | |
| 5460 } | |
| 5461 | |
| 5462 | |
| 5463 /* | |
| 5464 * Process the IOCTL | |
| 5465 */ | |
| 5466 switch (cmd) { | |
| 5467 case SCSI_VHCI_GET_CLIENT_MULTIPATH_INFO: | |
| 5468 { | |
| 5469 uint_t num_paths; /* Num paths to client dev */ | |
| 5470 sv_path_info_t *upibuf = NULL; /* To keep userland values */ | |
| 5471 sv_path_info_t *kpibuf = NULL; /* Kernel data for ioctls */ | |
| 5472 dev_info_t *cdip; /* Client device dip */ | |
| 5473 | |
| 5474 if (pioc->ret_elem == NULL) { | |
| 5475 retval = EINVAL; | |
| 5476 break; | |
| 5477 } | |
| 5478 | |
| 5479 /* Get client device path from user land */ | |
| 5480 if (vhci_ioc_get_client_path(pioc, client_path, mode, s)) { | |
| 5481 retval = EFAULT; | |
| 5482 break; | |
| 5483 } | |
| 5484 | |
| 5485 VHCI_DEBUG(6, (CE_WARN, vdip, "!vhci_ioctl: ioctl <%s> " | |
| 5486 "client <%s>", s, client_path)); | |
| 5487 | |
| 5488 /* Get number of paths to this client device */ | |
| 5489 if ((cdip = mdi_client_path2devinfo(vdip, client_path)) | |
| 5490 == NULL) { | |
| 5491 retval = ENXIO; | |
| 5492 VHCI_DEBUG(1, (CE_WARN, NULL, "!vhci_ioctl: ioctl <%s> " | |
| 5493 "client dip doesn't exist. invalid path <%s>", | |
| 5494 s, client_path)); | |
| 5495 break; | |
| 5496 } | |
| 5497 num_paths = mdi_client_get_path_count(cdip); | |
| 5498 | |
| 5499 if (ddi_copyout(&num_paths, pioc->ret_elem, | |
| 5500 sizeof (num_paths), mode)) { | |
| 5501 VHCI_DEBUG(1, (CE_WARN, NULL, "!vhci_ioctl: ioctl <%s> " | |
| 5502 "num_paths copyout failed", s)); | |
| 5503 retval = EFAULT; | |
| 5504 break; | |
| 5505 } | |
| 5506 | |
| 5507 /* If user just wanted num_paths, then return */ | |
| 5508 if (pioc->buf_elem == 0 || pioc->ret_buf == NULL || | |
| 5509 num_paths == 0) { | |
| 5510 break; | |
| 5511 } | |
| 5512 | |
| 5513 /* Set num_paths to value as much as can be sent to userland */ | |
| 5514 if (num_paths > pioc->buf_elem) { | |
| 5515 num_paths = pioc->buf_elem; | |
| 5516 } | |
| 5517 | |
| 5518 /* Allocate memory and get userland pointers */ | |
| 5519 if (vhci_ioc_alloc_pathinfo(&upibuf, &kpibuf, num_paths, | |
| 5520 pioc, mode, s) != 0) { | |
| 5521 retval = EFAULT; | |
| 5522 break; | |
| 5523 } | |
| 5524 ASSERT(upibuf != NULL); | |
| 5525 ASSERT(kpibuf != NULL); | |
| 5526 | |
| 5527 /* | |
| 5528 * Get the path information and send it to userland. | |
| 5529 */ | |
| 5530 if (vhci_get_client_path_list(cdip, kpibuf, num_paths) | |
| 5531 != MDI_SUCCESS) { | |
| 5532 retval = ENXIO; | |
| 5533 vhci_ioc_free_pathinfo(upibuf, kpibuf, num_paths); | |
| 5534 break; | |
| 5535 } | |
| 5536 | |
| 5537 if (vhci_ioc_send_pathinfo(upibuf, kpibuf, num_paths, | |
| 5538 pioc, mode, s)) { | |
| 5539 retval = EFAULT; | |
| 5540 vhci_ioc_free_pathinfo(upibuf, kpibuf, num_paths); | |
| 5541 break; | |
| 5542 } | |
| 5543 | |
| 5544 /* Free the memory allocated for path information */ | |
| 5545 vhci_ioc_free_pathinfo(upibuf, kpibuf, num_paths); | |
| 5546 break; | |
| 5547 } | |
| 5548 | |
| 5549 case SCSI_VHCI_GET_PHCI_MULTIPATH_INFO: | |
| 5550 { | |
| 5551 uint_t num_paths; /* Num paths to client dev */ | |
| 5552 sv_path_info_t *upibuf = NULL; /* To keep userland values */ | |
| 5553 sv_path_info_t *kpibuf = NULL; /* Kernel data for ioctls */ | |
| 5554 dev_info_t *pdip; /* PHCI device dip */ | |
| 5555 | |
| 5556 if (pioc->ret_elem == NULL) { | |
| 5557 retval = EINVAL; | |
| 5558 break; | |
| 5559 } | |
| 5560 | |
| 5561 /* Get PHCI device path from user land */ | |
| 5562 if (vhci_ioc_get_phci_path(pioc, phci_path, mode, s)) { | |
| 5563 retval = EFAULT; | |
| 5564 break; | |
| 5565 } | |
| 5566 | |
| 5567 VHCI_DEBUG(6, (CE_WARN, vdip, | |
| 5568 "!vhci_ioctl: ioctl <%s> phci <%s>", s, phci_path)); | |
| 5569 | |
| 5570 /* Get number of devices associated with this PHCI device */ | |
| 5571 if ((pdip = mdi_phci_path2devinfo(vdip, phci_path)) == NULL) { | |
| 5572 VHCI_DEBUG(1, (CE_WARN, NULL, "!vhci_ioctl: ioctl <%s> " | |
| 5573 "phci dip doesn't exist. invalid path <%s>", | |
| 5574 s, phci_path)); | |
| 5575 retval = ENXIO; | |
| 5576 break; | |
| 5577 } | |
| 5578 | |
| 5579 num_paths = mdi_phci_get_path_count(pdip); | |
| 5580 | |
| 5581 if (ddi_copyout(&num_paths, pioc->ret_elem, | |
| 5582 sizeof (num_paths), mode)) { | |
| 5583 VHCI_DEBUG(2, (CE_WARN, NULL, "!vhci_ioctl: ioctl <%s> " | |
| 5584 "num_paths copyout failed", s)); | |
| 5585 retval = EFAULT; | |
| 5586 break; | |
| 5587 } | |
| 5588 | |
| 5589 /* If user just wanted num_paths, then return */ | |
| 5590 if (pioc->buf_elem == 0 || pioc->ret_buf == NULL || | |
| 5591 num_paths == 0) { | |
| 5592 break; | |
| 5593 } | |
| 5594 | |
| 5595 /* Set num_paths to value as much as can be sent to userland */ | |
| 5596 if (num_paths > pioc->buf_elem) { | |
| 5597 num_paths = pioc->buf_elem; | |
| 5598 } | |
| 5599 | |
| 5600 /* Allocate memory and get userland pointers */ | |
| 5601 if (vhci_ioc_alloc_pathinfo(&upibuf, &kpibuf, num_paths, | |
| 5602 pioc, mode, s) != 0) { | |
| 5603 retval = EFAULT; | |
| 5604 break; | |
| 5605 } | |
| 5606 ASSERT(upibuf != NULL); | |
| 5607 ASSERT(kpibuf != NULL); | |
| 5608 | |
| 5609 /* | |
| 5610 * Get the path information and send it to userland. | |
| 5611 */ | |
| 5612 if (vhci_get_phci_path_list(pdip, kpibuf, num_paths) | |
| 5613 != MDI_SUCCESS) { | |
| 5614 retval = ENXIO; | |
| 5615 vhci_ioc_free_pathinfo(upibuf, kpibuf, num_paths); | |
| 5616 break; | |
| 5617 } | |
| 5618 | |
| 5619 if (vhci_ioc_send_pathinfo(upibuf, kpibuf, num_paths, | |
| 5620 pioc, mode, s)) { | |
| 5621 retval = EFAULT; | |
| 5622 vhci_ioc_free_pathinfo(upibuf, kpibuf, num_paths); | |
| 5623 break; | |
| 5624 } | |
| 5625 | |
| 5626 /* Free the memory allocated for path information */ | |
| 5627 vhci_ioc_free_pathinfo(upibuf, kpibuf, num_paths); | |
| 5628 break; | |
| 5629 } | |
| 5630 | |
| 5631 case SCSI_VHCI_GET_CLIENT_NAME: | |
| 5632 { | |
| 5633 dev_info_t *cdip, *pdip; | |
| 5634 | |
| 5635 /* Get PHCI path and device address from user land */ | |
| 5636 if (vhci_ioc_get_phci_path(pioc, phci_path, mode, s) || | |
| 5637 vhci_ioc_get_paddr(pioc, paddr, mode, s)) { | |
| 5638 retval = EFAULT; | |
| 5639 break; | |
| 5640 } | |
| 5641 | |
| 5642 VHCI_DEBUG(6, (CE_WARN, vdip, "!vhci_ioctl: ioctl <%s> " | |
| 5643 "phci <%s>, paddr <%s>", s, phci_path, paddr)); | |
| 5644 | |
| 5645 /* Get the PHCI dip */ | |
| 5646 if ((pdip = mdi_phci_path2devinfo(vdip, phci_path)) == NULL) { | |
| 5647 VHCI_DEBUG(1, (CE_WARN, NULL, "!vhci_ioctl: ioctl <%s> " | |
| 5648 "phci dip doesn't exist. invalid path <%s>", | |
| 5649 s, phci_path)); | |
| 5650 retval = ENXIO; | |
| 5651 break; | |
| 5652 } | |
| 5653 | |
| 5654 if ((pip = mdi_pi_find(pdip, NULL, paddr)) == NULL) { | |
| 5655 VHCI_DEBUG(1, (CE_WARN, vdip, "!vhci_ioctl: ioctl <%s> " | |
| 5656 "pathinfo doesn't exist. invalid device addr", s)); | |
| 5657 retval = ENXIO; | |
| 5658 break; | |
| 5659 } | |
| 5660 | |
| 5661 /* Get the client device pathname and send to userland */ | |
| 5662 cdip = mdi_pi_get_client(pip); | |
| 5663 vhci_ioc_devi_to_path(cdip, client_path); | |
| 5664 | |
| 5665 VHCI_DEBUG(6, (CE_WARN, vdip, "!vhci_ioctl: ioctl <%s> " | |
| 5666 "client <%s>", s, client_path)); | |
| 5667 | |
| 5668 if (vhci_ioc_send_client_path(client_path, pioc, mode, s)) { | |
| 5669 retval = EFAULT; | |
| 5670 break; | |
| 5671 } | |
| 5672 break; | |
| 5673 } | |
| 5674 | |
| 5675 case SCSI_VHCI_PATH_ONLINE: | |
| 5676 case SCSI_VHCI_PATH_OFFLINE: | |
| 5677 case SCSI_VHCI_PATH_STANDBY: | |
| 5678 case SCSI_VHCI_PATH_TEST: | |
| 5679 { | |
| 5680 dev_info_t *pdip; /* PHCI dip */ | |
| 5681 | |
| 5682 /* Get PHCI path and device address from user land */ | |
| 5683 if (vhci_ioc_get_phci_path(pioc, phci_path, mode, s) || | |
| 5684 vhci_ioc_get_paddr(pioc, paddr, mode, s)) { | |
| 5685 retval = EFAULT; | |
| 5686 break; | |
| 5687 } | |
| 5688 | |
| 5689 VHCI_DEBUG(6, (CE_WARN, vdip, "!vhci_ioctl: ioctl <%s> " | |
| 5690 "phci <%s>, paddr <%s>", s, phci_path, paddr)); | |
| 5691 | |
| 5692 /* Get the PHCI dip */ | |
| 5693 if ((pdip = mdi_phci_path2devinfo(vdip, phci_path)) == NULL) { | |
| 5694 VHCI_DEBUG(1, (CE_WARN, NULL, "!vhci_ioctl: ioctl <%s> " | |
| 5695 "phci dip doesn't exist. invalid path <%s>", | |
| 5696 s, phci_path)); | |
| 5697 retval = ENXIO; | |
| 5698 break; | |
| 5699 } | |
| 5700 | |
| 5701 if ((pip = mdi_pi_find(pdip, NULL, paddr)) == NULL) { | |
| 5702 VHCI_DEBUG(1, (CE_WARN, vdip, "!vhci_ioctl: ioctl <%s> " | |
| 5703 "pathinfo doesn't exist. invalid device addr", s)); | |
| 5704 retval = ENXIO; | |
| 5705 break; | |
| 5706 } | |
| 5707 | |
| 5708 VHCI_DEBUG(6, (CE_WARN, vdip, "!vhci_ioctl: ioctl <%s> " | |
| 5709 "Calling MDI function to change device state", s)); | |
| 5710 | |
| 5711 switch (cmd) { | |
| 5712 case SCSI_VHCI_PATH_ONLINE: | |
| 5713 retval = mdi_pi_online(pip, 0); | |
| 5714 break; | |
| 5715 | |
| 5716 case SCSI_VHCI_PATH_OFFLINE: | |
| 5717 retval = mdi_pi_offline(pip, 0); | |
| 5718 break; | |
| 5719 | |
| 5720 case SCSI_VHCI_PATH_STANDBY: | |
| 5721 retval = mdi_pi_standby(pip, 0); | |
| 5722 break; | |
| 5723 | |
| 5724 case SCSI_VHCI_PATH_TEST: | |
| 5725 break; | |
| 5726 } | |
| 5727 break; | |
| 5728 } | |
| 5729 | |
| 5730 case SCSI_VHCI_SWITCH_TO_CNTLR: | |
| 5731 { | |
| 5732 dev_info_t *cdip; | |
| 5733 struct scsi_device *devp; | |
| 5734 | |
| 5735 /* Get the client device pathname */ | |
| 5736 if (ddi_copyin(piocsc->client, client_path, | |
| 5737 MAXPATHLEN, mode)) { | |
| 5738 VHCI_DEBUG(2, (CE_WARN, vdip, "!vhci_ioctl: ioctl <%s> " | |
| 5739 "client_path copyin failed", s)); | |
| 5740 retval = EFAULT; | |
| 5741 break; | |
| 5742 } | |
| 5743 | |
| 5744 /* Get the path class to which user wants to switch */ | |
| 5745 if (ddi_copyin(piocsc->class, paddr, MAXNAMELEN, mode)) { | |
| 5746 VHCI_DEBUG(2, (CE_WARN, vdip, "!vhci_ioctl: ioctl <%s> " | |
| 5747 "controller_class copyin failed", s)); | |
| 5748 retval = EFAULT; | |
| 5749 break; | |
| 5750 } | |
| 5751 | |
| 5752 /* Perform validity checks */ | |
| 5753 if ((cdip = mdi_client_path2devinfo(vdip, | |
| 5754 client_path)) == NULL) { | |
| 5755 VHCI_DEBUG(1, (CE_WARN, NULL, "!vhci_ioctl: ioctl <%s> " | |
| 5756 "client dip doesn't exist. invalid path <%s>", | |
| 5757 s, client_path)); | |
| 5758 retval = ENXIO; | |
| 5759 break; | |
| 5760 } | |
| 5761 | |
| 5762 VHCI_DEBUG(6, (CE_WARN, vdip, "!vhci_ioctl: Calling MDI func " | |
| 5763 "to switch controller")); | |
| 5764 VHCI_DEBUG(6, (CE_WARN, vdip, "!vhci_ioctl: client <%s> " | |
| 5765 "class <%s>", client_path, paddr)); | |
| 5766 | |
| 5767 if (strcmp(paddr, PCLASS_PRIMARY) && | |
| 5768 strcmp(paddr, PCLASS_SECONDARY)) { | |
| 5769 VHCI_DEBUG(2, (CE_WARN, NULL, "!vhci_ioctl: ioctl <%s> " | |
| 5770 "invalid path class <%s>", s, paddr)); | |
| 5771 retval = ENXIO; | |
| 5772 break; | |
| 5773 } | |
| 5774 | |
| 5775 devp = ddi_get_driver_private(cdip); | |
| 5776 if (devp == NULL) { | |
| 5777 VHCI_DEBUG(2, (CE_WARN, NULL, "!vhci_ioctl: ioctl <%s> " | |
| 5778 "invalid scsi device <%s>", s, client_path)); | |
| 5779 retval = ENXIO; | |
| 5780 break; | |
| 5781 } | |
| 5782 vlun = ADDR2VLUN(&devp->sd_address); | |
| 5783 ASSERT(vlun); | |
| 5784 | |
| 5785 /* | |
| 5786 * Checking to see if device has only one pclass, PRIMARY. | |
| 5787 * If so this device doesn't support failovers. Assumed | |
| 5788 * that the devices with one pclass is PRIMARY, as thats the | |
| 5789 * case today. If this is not true and in future other | |
| 5790 * symmetric devices are supported with other pclass, this | |
| 5791 * IOCTL shall have to be overhauled anyways as now the only | |
| 5792 * arguments it accepts are PRIMARY and SECONDARY. | |
| 5793 */ | |
| 5794 fo = vlun->svl_fops; | |
|
6941
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
rralphs
parents:
6777
diff
changeset
|
5795 if (fo->sfo_pathclass_next(PCLASS_PRIMARY, &pclass, |
| 4851 | 5796 vlun->svl_fops_ctpriv)) { |
| 5797 retval = ENOTSUP; | |
| 5798 break; | |
| 5799 } | |
| 5800 | |
| 5801 VHCI_HOLD_LUN(vlun, VH_SLEEP, held); | |
| 5802 mutex_enter(&vlun->svl_mutex); | |
| 5803 if (vlun->svl_active_pclass != NULL) { | |
| 5804 if (strcmp(vlun->svl_active_pclass, paddr) == 0) { | |
| 5805 mutex_exit(&vlun->svl_mutex); | |
| 5806 retval = EALREADY; | |
| 5807 VHCI_RELEASE_LUN(vlun); | |
| 5808 break; | |
| 5809 } | |
| 5810 } | |
| 5811 mutex_exit(&vlun->svl_mutex); | |
| 5812 /* Call mdi function to cause a switch over */ | |
| 5813 retval = mdi_failover(vdip, cdip, MDI_FAILOVER_SYNC); | |
| 5814 if (retval == MDI_SUCCESS) { | |
| 5815 retval = 0; | |
| 5816 } else if (retval == MDI_BUSY) { | |
| 5817 retval = EBUSY; | |
| 5818 } else { | |
| 5819 retval = EIO; | |
| 5820 } | |
| 5821 VHCI_RELEASE_LUN(vlun); | |
| 5822 break; | |
| 5823 } | |
| 5824 | |
| 5825 case SCSI_VHCI_PATH_ENABLE: | |
| 5826 case SCSI_VHCI_PATH_DISABLE: | |
| 5827 { | |
| 5828 dev_info_t *cdip, *pdip; | |
| 5829 | |
| 5830 /* | |
| 5831 * Get client device path from user land | |
| 5832 */ | |
| 5833 if (vhci_ioc_get_client_path(pioc, client_path, mode, s)) { | |
| 5834 retval = EFAULT; | |
| 5835 break; | |
| 5836 } | |
| 5837 | |
| 5838 /* | |
| 5839 * Get Phci device path from user land | |
| 5840 */ | |
| 5841 if (vhci_ioc_get_phci_path(pioc, phci_path, mode, s)) { | |
| 5842 retval = EFAULT; | |
| 5843 break; | |
| 5844 } | |
| 5845 | |
| 5846 /* | |
| 5847 * Get the devinfo for the Phci. | |
| 5848 */ | |
| 5849 if ((pdip = mdi_phci_path2devinfo(vdip, phci_path)) == NULL) { | |
| 5850 VHCI_DEBUG(1, (CE_WARN, NULL, "!vhci_ioctl: ioctl <%s> " | |
| 5851 "phci dip doesn't exist. invalid path <%s>", | |
| 5852 s, phci_path)); | |
| 5853 retval = ENXIO; | |
| 5854 break; | |
| 5855 } | |
| 5856 | |
| 5857 /* | |
| 5858 * If the client path is set to /scsi_vhci then we need | |
| 5859 * to do the operation on all the clients so set cdip to NULL. | |
| 5860 * Else, try to get the client dip. | |
| 5861 */ | |
| 5862 if (strcmp(client_path, "/scsi_vhci") == 0) { | |
| 5863 cdip = NULL; | |
| 5864 } else { | |
| 5865 if ((cdip = mdi_client_path2devinfo(vdip, | |
| 5866 client_path)) == NULL) { | |
| 5867 retval = ENXIO; | |
| 5868 VHCI_DEBUG(1, (CE_WARN, NULL, | |
| 5869 "!vhci_ioctl: ioctl <%s> client dip " | |
| 5870 "doesn't exist. invalid path <%s>", | |
| 5871 s, client_path)); | |
| 5872 break; | |
| 5873 } | |
| 5874 } | |
| 5875 | |
| 5876 if (cmd == SCSI_VHCI_PATH_ENABLE) | |
| 5877 retval = mdi_pi_enable(cdip, pdip, USER_DISABLE); | |
| 5878 else | |
| 5879 retval = mdi_pi_disable(cdip, pdip, USER_DISABLE); | |
| 5880 | |
| 5881 break; | |
| 5882 } | |
| 5883 | |
| 5884 case SCSI_VHCI_GET_TARGET_LONGNAME: | |
| 5885 { | |
| 5886 uint_t pid = pioc->buf_elem; | |
| 5887 char *target_port; | |
| 5888 mod_hash_val_t hv; | |
| 5889 | |
| 5890 /* targetmap lookup of 'target-port' by <pid> */ | |
| 5891 if (mod_hash_find(vhci_targetmap_bypid, | |
| 5892 (mod_hash_key_t)(uintptr_t)pid, &hv) != 0) { | |
| 5893 /* | |
| 5894 * NOTE: failure to find the mapping is OK for guid | |
| 5895 * based 'target-port' values. | |
| 5896 */ | |
| 5897 VHCI_DEBUG(3, (CE_WARN, NULL, "!vhci_ioctl: ioctl <%s> " | |
| 5898 "targetport mapping doesn't exist: pid %d", | |
| 5899 s, pid)); | |
| 5900 retval = ENXIO; | |
| 5901 break; | |
| 5902 } | |
| 5903 | |
| 5904 /* copyout 'target-port' result */ | |
| 5905 target_port = (char *)hv; | |
| 5906 if (copyoutstr(target_port, pioc->addr, MAXNAMELEN, NULL)) { | |
| 5907 VHCI_DEBUG(1, (CE_WARN, NULL, "!vhci_ioctl: ioctl <%s> " | |
| 5908 "targetport copyout failed: len: %d", | |
| 5909 s, (int)strlen(target_port))); | |
| 5910 retval = EFAULT; | |
| 5911 } | |
| 5912 break; | |
| 5913 } | |
| 5914 | |
| 5915 #ifdef DEBUG | |
| 5916 case SCSI_VHCI_CONFIGURE_PHCI: | |
| 5917 { | |
| 5918 dev_info_t *pdip; | |
| 5919 | |
| 5920 /* Get PHCI path and device address from user land */ | |
| 5921 if (vhci_ioc_get_phci_path(pioc, phci_path, mode, s)) { | |
| 5922 retval = EFAULT; | |
| 5923 break; | |
| 5924 } | |
| 5925 | |
| 5926 VHCI_DEBUG(6, (CE_WARN, vdip, "!vhci_ioctl: ioctl <%s> " | |
| 5927 "phci <%s>", s, phci_path)); | |
| 5928 | |
| 5929 /* Get the PHCI dip */ | |
| 5930 if ((pdip = e_ddi_hold_devi_by_path(phci_path, 0)) == NULL) { | |
| 5931 VHCI_DEBUG(3, (CE_WARN, NULL, "!vhci_ioctl: ioctl <%s> " | |
| 5932 "phci dip doesn't exist. invalid path <%s>", | |
| 5933 s, phci_path)); | |
| 5934 retval = ENXIO; | |
| 5935 break; | |
| 5936 } | |
| 5937 | |
| 5938 if (ndi_devi_config(pdip, | |
| 5939 NDI_DEVFS_CLEAN|NDI_DEVI_PERSIST) != NDI_SUCCESS) { | |
| 5940 retval = EIO; | |
| 5941 } | |
| 5942 | |
| 5943 ddi_release_devi(pdip); | |
| 5944 break; | |
| 5945 } | |
| 5946 | |
| 5947 case SCSI_VHCI_UNCONFIGURE_PHCI: | |
| 5948 { | |
| 5949 dev_info_t *pdip; | |
| 5950 | |
| 5951 /* Get PHCI path and device address from user land */ | |
| 5952 if (vhci_ioc_get_phci_path(pioc, phci_path, mode, s)) { | |
| 5953 retval = EFAULT; | |
| 5954 break; | |
| 5955 } | |
| 5956 | |
| 5957 VHCI_DEBUG(6, (CE_WARN, vdip, "!vhci_ioctl: ioctl <%s> " | |
| 5958 "phci <%s>", s, phci_path)); | |
| 5959 | |
| 5960 /* Get the PHCI dip */ | |
| 5961 if ((pdip = e_ddi_hold_devi_by_path(phci_path, 0)) == NULL) { | |
| 5962 VHCI_DEBUG(3, (CE_WARN, NULL, "!vhci_ioctl: ioctl <%s> " | |
| 5963 "phci dip doesn't exist. invalid path <%s>", | |
| 5964 s, phci_path)); | |
| 5965 retval = ENXIO; | |
| 5966 break; | |
| 5967 } | |
| 5968 | |
| 5969 if (ndi_devi_unconfig(pdip, | |
| 5970 NDI_DEVI_REMOVE|NDI_DEVFS_CLEAN) != NDI_SUCCESS) { | |
| 5971 retval = EBUSY; | |
| 5972 } | |
| 5973 | |
| 5974 ddi_release_devi(pdip); | |
| 5975 break; | |
| 5976 } | |
| 5977 #endif | |
| 5978 } | |
| 5979 | |
| 5980 end: | |
| 5981 /* Free the memory allocated above */ | |
| 5982 if (phci_path != NULL) { | |
| 5983 kmem_free(phci_path, MAXPATHLEN); | |
| 5984 } | |
| 5985 if (client_path != NULL) { | |
| 5986 kmem_free(client_path, MAXPATHLEN); | |
| 5987 } | |
| 5988 if (paddr != NULL) { | |
| 5989 kmem_free(paddr, MAXNAMELEN); | |
| 5990 } | |
| 5991 return (retval); | |
| 5992 } | |
| 5993 | |
| 5994 /* | |
| 5995 * devctl IOCTL support for client device DR | |
| 5996 */ | |
| 5997 /* ARGSUSED */ | |
| 5998 int | |
| 5999 vhci_devctl(dev_t dev, int cmd, intptr_t arg, int mode, cred_t *credp, | |
| 6000 int *rvalp) | |
| 6001 { | |
| 6002 dev_info_t *self; | |
| 6003 dev_info_t *child; | |
| 6004 scsi_hba_tran_t *hba; | |
| 6005 struct devctl_iocdata *dcp; | |
| 6006 struct scsi_vhci *vhci; | |
| 6007 int rv = 0; | |
| 6008 int retval = 0; | |
| 6009 scsi_vhci_priv_t *svp; | |
| 6010 mdi_pathinfo_t *pip; | |
| 6011 | |
| 6012 if ((vhci = ddi_get_soft_state(vhci_softstate, | |
| 6013 MINOR2INST(getminor(dev)))) == NULL) | |
| 6014 return (ENXIO); | |
| 6015 | |
| 6016 /* | |
| 6017 * check if :devctl minor device has been opened | |
| 6018 */ | |
| 6019 mutex_enter(&vhci->vhci_mutex); | |
| 6020 if ((vhci->vhci_state & VHCI_STATE_OPEN) == 0) { | |
| 6021 mutex_exit(&vhci->vhci_mutex); | |
| 6022 return (ENXIO); | |
| 6023 } | |
| 6024 mutex_exit(&vhci->vhci_mutex); | |
| 6025 | |
| 6026 self = vhci->vhci_dip; | |
| 6027 hba = ddi_get_driver_private(self); | |
| 6028 if (hba == NULL) | |
| 6029 return (ENXIO); | |
| 6030 | |
| 6031 /* | |
| 6032 * We can use the generic implementation for these ioctls | |
| 6033 */ | |
| 6034 switch (cmd) { | |
| 6035 case DEVCTL_DEVICE_GETSTATE: | |
| 6036 case DEVCTL_DEVICE_ONLINE: | |
| 6037 case DEVCTL_DEVICE_OFFLINE: | |
| 6038 case DEVCTL_DEVICE_REMOVE: | |
| 6039 case DEVCTL_BUS_GETSTATE: | |
| 6040 return (ndi_devctl_ioctl(self, cmd, arg, mode, 0)); | |
| 6041 } | |
| 6042 | |
| 6043 /* | |
| 6044 * read devctl ioctl data | |
| 6045 */ | |
| 6046 if (ndi_dc_allochdl((void *)arg, &dcp) != NDI_SUCCESS) | |
| 6047 return (EFAULT); | |
| 6048 | |
| 6049 switch (cmd) { | |
| 6050 | |
| 6051 case DEVCTL_DEVICE_RESET: | |
| 6052 /* | |
| 6053 * lookup and hold child device | |
| 6054 */ | |
| 6055 if ((child = ndi_devi_find(self, ndi_dc_getname(dcp), | |
| 6056 ndi_dc_getaddr(dcp))) == NULL) { | |
| 6057 rv = ENXIO; | |
| 6058 break; | |
| 6059 } | |
| 6060 retval = mdi_select_path(child, NULL, | |
| 6061 (MDI_SELECT_ONLINE_PATH | MDI_SELECT_STANDBY_PATH), | |
| 6062 NULL, &pip); | |
| 6063 if ((retval != MDI_SUCCESS) || (pip == NULL)) { | |
| 6064 VHCI_DEBUG(2, (CE_WARN, NULL, "!vhci_ioctl:" | |
| 6065 "Unable to get a path, dip 0x%p", (void *)child)); | |
| 6066 rv = ENXIO; | |
| 6067 break; | |
| 6068 } | |
| 6069 svp = (scsi_vhci_priv_t *)mdi_pi_get_vhci_private(pip); | |
| 6070 if (vhci_recovery_reset(svp->svp_svl, | |
| 6071 &svp->svp_psd->sd_address, TRUE, | |
| 6072 VHCI_DEPTH_TARGET) == 0) { | |
| 6073 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
| 6074 "!vhci_ioctl(pip:%p): " | |
| 6075 "reset failed\n", (void *)pip)); | |
| 6076 rv = ENXIO; | |
| 6077 } | |
| 6078 mdi_rele_path(pip); | |
| 6079 break; | |
| 6080 | |
| 6081 case DEVCTL_BUS_QUIESCE: | |
| 6082 case DEVCTL_BUS_UNQUIESCE: | |
| 6083 case DEVCTL_BUS_RESET: | |
| 6084 case DEVCTL_BUS_RESETALL: | |
| 6085 #ifdef DEBUG | |
| 6086 case DEVCTL_BUS_CONFIGURE: | |
| 6087 case DEVCTL_BUS_UNCONFIGURE: | |
| 6088 #endif | |
| 6089 rv = ENOTSUP; | |
| 6090 break; | |
| 6091 | |
| 6092 default: | |
| 6093 rv = ENOTTY; | |
| 6094 } /* end of outer switch */ | |
| 6095 | |
| 6096 ndi_dc_freehdl(dcp); | |
| 6097 return (rv); | |
| 6098 } | |
| 6099 | |
| 6100 /* | |
| 6101 * Routine to get the PHCI pathname from ioctl structures in userland | |
| 6102 */ | |
| 6103 /* ARGSUSED */ | |
| 6104 static int | |
| 6105 vhci_ioc_get_phci_path(sv_iocdata_t *pioc, caddr_t phci_path, | |
| 6106 int mode, caddr_t s) | |
| 6107 { | |
| 6108 int retval = 0; | |
| 6109 | |
| 6110 if (ddi_copyin(pioc->phci, phci_path, MAXPATHLEN, mode)) { | |
| 6111 VHCI_DEBUG(2, (CE_WARN, NULL, "!vhci_ioc_get_phci: ioctl <%s> " | |
| 6112 "phci_path copyin failed", s)); | |
| 6113 retval = EFAULT; | |
| 6114 } | |
| 6115 return (retval); | |
| 6116 | |
| 6117 } | |
| 6118 | |
| 6119 | |
| 6120 /* | |
| 6121 * Routine to get the Client device pathname from ioctl structures in userland | |
| 6122 */ | |
| 6123 /* ARGSUSED */ | |
| 6124 static int | |
| 6125 vhci_ioc_get_client_path(sv_iocdata_t *pioc, caddr_t client_path, | |
| 6126 int mode, caddr_t s) | |
| 6127 { | |
| 6128 int retval = 0; | |
| 6129 | |
| 6130 if (ddi_copyin(pioc->client, client_path, MAXPATHLEN, mode)) { | |
| 6131 VHCI_DEBUG(2, (CE_WARN, NULL, "!vhci_ioc_get_client: " | |
| 6132 "ioctl <%s> client_path copyin failed", s)); | |
| 6133 retval = EFAULT; | |
| 6134 } | |
| 6135 return (retval); | |
| 6136 } | |
| 6137 | |
| 6138 | |
| 6139 /* | |
| 6140 * Routine to get physical device address from ioctl structure in userland | |
| 6141 */ | |
| 6142 /* ARGSUSED */ | |
| 6143 static int | |
| 6144 vhci_ioc_get_paddr(sv_iocdata_t *pioc, caddr_t paddr, int mode, caddr_t s) | |
| 6145 { | |
| 6146 int retval = 0; | |
| 6147 | |
| 6148 if (ddi_copyin(pioc->addr, paddr, MAXNAMELEN, mode)) { | |
| 6149 VHCI_DEBUG(2, (CE_WARN, NULL, "!vhci_ioc_get_paddr: " | |
| 6150 "ioctl <%s> device addr copyin failed", s)); | |
| 6151 retval = EFAULT; | |
| 6152 } | |
| 6153 return (retval); | |
| 6154 } | |
| 6155 | |
| 6156 | |
| 6157 /* | |
| 6158 * Routine to send client device pathname to userland. | |
| 6159 */ | |
| 6160 /* ARGSUSED */ | |
| 6161 static int | |
| 6162 vhci_ioc_send_client_path(caddr_t client_path, sv_iocdata_t *pioc, | |
| 6163 int mode, caddr_t s) | |
| 6164 { | |
| 6165 int retval = 0; | |
| 6166 | |
| 6167 if (ddi_copyout(client_path, pioc->client, MAXPATHLEN, mode)) { | |
| 6168 VHCI_DEBUG(2, (CE_WARN, NULL, "!vhci_ioc_send_client: " | |
| 6169 "ioctl <%s> client_path copyout failed", s)); | |
| 6170 retval = EFAULT; | |
| 6171 } | |
| 6172 return (retval); | |
| 6173 } | |
| 6174 | |
| 6175 | |
| 6176 /* | |
| 6177 * Routine to translated dev_info pointer (dip) to device pathname. | |
| 6178 */ | |
| 6179 static void | |
| 6180 vhci_ioc_devi_to_path(dev_info_t *dip, caddr_t path) | |
| 6181 { | |
| 6182 (void) ddi_pathname(dip, path); | |
| 6183 } | |
| 6184 | |
| 6185 | |
| 6186 /* | |
| 6187 * vhci_get_phci_path_list: | |
| 6188 * get information about devices associated with a | |
| 6189 * given PHCI device. | |
| 6190 * | |
| 6191 * Return Values: | |
| 6192 * path information elements | |
| 6193 */ | |
| 6194 int | |
| 6195 vhci_get_phci_path_list(dev_info_t *pdip, sv_path_info_t *pibuf, | |
| 6196 uint_t num_elems) | |
| 6197 { | |
| 6198 uint_t count, done; | |
| 6199 mdi_pathinfo_t *pip; | |
| 6200 sv_path_info_t *ret_pip; | |
| 6201 int status; | |
| 6202 size_t prop_size; | |
| 6203 int circular; | |
| 6204 | |
| 6205 /* | |
| 6206 * Get the PHCI structure and retrieve the path information | |
| 6207 * from the GUID hash table. | |
| 6208 */ | |
| 6209 | |
| 6210 ret_pip = pibuf; | |
| 6211 count = 0; | |
| 6212 | |
| 6213 ndi_devi_enter(pdip, &circular); | |
| 6214 | |
| 6215 done = (count >= num_elems); | |
| 6216 pip = mdi_get_next_client_path(pdip, NULL); | |
| 6217 while (pip && !done) { | |
| 6218 mdi_pi_lock(pip); | |
| 6219 (void) ddi_pathname(mdi_pi_get_phci(pip), | |
| 6220 ret_pip->device.ret_phci); | |
| 6221 (void) strcpy(ret_pip->ret_addr, mdi_pi_get_addr(pip)); | |
| 6222 (void) mdi_pi_get_state2(pip, &ret_pip->ret_state, | |
| 6223 &ret_pip->ret_ext_state); | |
| 6224 | |
| 6225 status = mdi_prop_size(pip, &prop_size); | |
| 6226 if (status == MDI_SUCCESS && ret_pip->ret_prop.ret_buf_size) { | |
| 6227 *ret_pip->ret_prop.ret_buf_size = (uint_t)prop_size; | |
| 6228 } | |
| 6229 | |
| 6230 #ifdef DEBUG | |
| 6231 if (status != MDI_SUCCESS) { | |
| 6232 VHCI_DEBUG(2, (CE_WARN, NULL, | |
| 6233 "!vhci_get_phci_path_list: " | |
| 6234 "phci <%s>, prop size failure 0x%x", | |
| 6235 ret_pip->device.ret_phci, status)); | |
| 6236 } | |
| 6237 #endif /* DEBUG */ | |
| 6238 | |
| 6239 | |
| 6240 if (status == MDI_SUCCESS && ret_pip->ret_prop.buf && | |
| 6241 prop_size && ret_pip->ret_prop.buf_size >= prop_size) { | |
| 6242 status = mdi_prop_pack(pip, | |
| 6243 &ret_pip->ret_prop.buf, | |
| 6244 ret_pip->ret_prop.buf_size); | |
| 6245 | |
| 6246 #ifdef DEBUG | |
| 6247 if (status != MDI_SUCCESS) { | |
| 6248 VHCI_DEBUG(2, (CE_WARN, NULL, | |
| 6249 "!vhci_get_phci_path_list: " | |
| 6250 "phci <%s>, prop pack failure 0x%x", | |
| 6251 ret_pip->device.ret_phci, status)); | |
| 6252 } | |
| 6253 #endif /* DEBUG */ | |
| 6254 } | |
| 6255 | |
| 6256 mdi_pi_unlock(pip); | |
| 6257 pip = mdi_get_next_client_path(pdip, pip); | |
| 6258 ret_pip++; | |
| 6259 count++; | |
| 6260 done = (count >= num_elems); | |
| 6261 } | |
| 6262 | |
| 6263 ndi_devi_exit(pdip, circular); | |
| 6264 | |
| 6265 return (MDI_SUCCESS); | |
| 6266 } | |
| 6267 | |
| 6268 | |
| 6269 /* | |
| 6270 * vhci_get_client_path_list: | |
| 6271 * get information about various paths associated with a | |
| 6272 * given client device. | |
| 6273 * | |
| 6274 * Return Values: | |
| 6275 * path information elements | |
| 6276 */ | |
| 6277 int | |
| 6278 vhci_get_client_path_list(dev_info_t *cdip, sv_path_info_t *pibuf, | |
| 6279 uint_t num_elems) | |
| 6280 { | |
| 6281 uint_t count, done; | |
| 6282 mdi_pathinfo_t *pip; | |
| 6283 sv_path_info_t *ret_pip; | |
| 6284 int status; | |
| 6285 size_t prop_size; | |
| 6286 int circular; | |
| 6287 | |
| 6288 ret_pip = pibuf; | |
| 6289 count = 0; | |
| 6290 | |
| 6291 ndi_devi_enter(cdip, &circular); | |
| 6292 | |
| 6293 done = (count >= num_elems); | |
| 6294 pip = mdi_get_next_phci_path(cdip, NULL); | |
| 6295 while (pip && !done) { | |
| 6296 mdi_pi_lock(pip); | |
| 6297 (void) ddi_pathname(mdi_pi_get_phci(pip), | |
| 6298 ret_pip->device.ret_phci); | |
| 6299 (void) strcpy(ret_pip->ret_addr, mdi_pi_get_addr(pip)); | |
| 6300 (void) mdi_pi_get_state2(pip, &ret_pip->ret_state, | |
| 6301 &ret_pip->ret_ext_state); | |
| 6302 | |
| 6303 status = mdi_prop_size(pip, &prop_size); | |
| 6304 if (status == MDI_SUCCESS && ret_pip->ret_prop.ret_buf_size) { | |
| 6305 *ret_pip->ret_prop.ret_buf_size = (uint_t)prop_size; | |
| 6306 } | |
| 6307 | |
| 6308 #ifdef DEBUG | |
| 6309 if (status != MDI_SUCCESS) { | |
| 6310 VHCI_DEBUG(2, (CE_WARN, NULL, | |
| 6311 "!vhci_get_client_path_list: " | |
| 6312 "phci <%s>, prop size failure 0x%x", | |
| 6313 ret_pip->device.ret_phci, status)); | |
| 6314 } | |
| 6315 #endif /* DEBUG */ | |
| 6316 | |
| 6317 | |
| 6318 if (status == MDI_SUCCESS && ret_pip->ret_prop.buf && | |
| 6319 prop_size && ret_pip->ret_prop.buf_size >= prop_size) { | |
| 6320 status = mdi_prop_pack(pip, | |
| 6321 &ret_pip->ret_prop.buf, | |
| 6322 ret_pip->ret_prop.buf_size); | |
| 6323 | |
| 6324 #ifdef DEBUG | |
| 6325 if (status != MDI_SUCCESS) { | |
| 6326 VHCI_DEBUG(2, (CE_WARN, NULL, | |
| 6327 "!vhci_get_client_path_list: " | |
| 6328 "phci <%s>, prop pack failure 0x%x", | |
| 6329 ret_pip->device.ret_phci, status)); | |
| 6330 } | |
| 6331 #endif /* DEBUG */ | |
| 6332 } | |
| 6333 | |
| 6334 mdi_pi_unlock(pip); | |
| 6335 pip = mdi_get_next_phci_path(cdip, pip); | |
| 6336 ret_pip++; | |
| 6337 count++; | |
| 6338 done = (count >= num_elems); | |
| 6339 } | |
| 6340 | |
| 6341 ndi_devi_exit(cdip, circular); | |
| 6342 | |
| 6343 return (MDI_SUCCESS); | |
| 6344 } | |
| 6345 | |
| 6346 | |
| 6347 /* | |
| 6348 * Routine to get ioctl argument structure from userland. | |
| 6349 */ | |
| 6350 /* ARGSUSED */ | |
| 6351 static int | |
| 6352 vhci_get_iocdata(const void *data, sv_iocdata_t *pioc, int mode, caddr_t s) | |
| 6353 { | |
| 6354 int retval = 0; | |
| 6355 | |
| 6356 #ifdef _MULTI_DATAMODEL | |
| 6357 switch (ddi_model_convert_from(mode & FMODELS)) { | |
| 6358 case DDI_MODEL_ILP32: | |
| 6359 { | |
| 6360 sv_iocdata32_t ioc32; | |
| 6361 | |
| 6362 if (ddi_copyin(data, &ioc32, sizeof (ioc32), mode)) { | |
| 6363 retval = EFAULT; | |
| 6364 break; | |
| 6365 } | |
| 6366 pioc->client = (caddr_t)(uintptr_t)ioc32.client; | |
| 6367 pioc->phci = (caddr_t)(uintptr_t)ioc32.phci; | |
| 6368 pioc->addr = (caddr_t)(uintptr_t)ioc32.addr; | |
| 6369 pioc->buf_elem = (uint_t)ioc32.buf_elem; | |
| 6370 pioc->ret_buf = (sv_path_info_t *)(uintptr_t)ioc32.ret_buf; | |
| 6371 pioc->ret_elem = (uint_t *)(uintptr_t)ioc32.ret_elem; | |
| 6372 break; | |
| 6373 } | |
| 6374 | |
| 6375 case DDI_MODEL_NONE: | |
| 6376 if (ddi_copyin(data, pioc, sizeof (*pioc), mode)) { | |
| 6377 retval = EFAULT; | |
| 6378 break; | |
| 6379 } | |
| 6380 break; | |
| 6381 } | |
| 6382 #else /* _MULTI_DATAMODEL */ | |
| 6383 if (ddi_copyin(data, pioc, sizeof (*pioc), mode)) { | |
| 6384 retval = EFAULT; | |
| 6385 } | |
| 6386 #endif /* _MULTI_DATAMODEL */ | |
| 6387 | |
| 6388 #ifdef DEBUG | |
| 6389 if (retval) { | |
| 6390 VHCI_DEBUG(2, (CE_WARN, NULL, "!vhci_get_ioc: cmd <%s> " | |
| 6391 "iocdata copyin failed", s)); | |
| 6392 } | |
| 6393 #endif | |
| 6394 | |
| 6395 return (retval); | |
| 6396 } | |
| 6397 | |
| 6398 | |
| 6399 /* | |
| 6400 * Routine to get the ioctl argument for ioctl causing controller switchover. | |
| 6401 */ | |
| 6402 /* ARGSUSED */ | |
| 6403 static int | |
| 6404 vhci_get_iocswitchdata(const void *data, sv_switch_to_cntlr_iocdata_t *piocsc, | |
| 6405 int mode, caddr_t s) | |
| 6406 { | |
| 6407 int retval = 0; | |
| 6408 | |
| 6409 #ifdef _MULTI_DATAMODEL | |
| 6410 switch (ddi_model_convert_from(mode & FMODELS)) { | |
| 6411 case DDI_MODEL_ILP32: | |
| 6412 { | |
| 6413 sv_switch_to_cntlr_iocdata32_t ioc32; | |
| 6414 | |
| 6415 if (ddi_copyin(data, &ioc32, sizeof (ioc32), mode)) { | |
| 6416 retval = EFAULT; | |
| 6417 break; | |
| 6418 } | |
| 6419 piocsc->client = (caddr_t)(uintptr_t)ioc32.client; | |
| 6420 piocsc->class = (caddr_t)(uintptr_t)ioc32.class; | |
| 6421 break; | |
| 6422 } | |
| 6423 | |
| 6424 case DDI_MODEL_NONE: | |
| 6425 if (ddi_copyin(data, piocsc, sizeof (*piocsc), mode)) { | |
| 6426 retval = EFAULT; | |
| 6427 } | |
| 6428 break; | |
| 6429 } | |
| 6430 #else /* _MULTI_DATAMODEL */ | |
| 6431 if (ddi_copyin(data, piocsc, sizeof (*piocsc), mode)) { | |
| 6432 retval = EFAULT; | |
| 6433 } | |
| 6434 #endif /* _MULTI_DATAMODEL */ | |
| 6435 | |
| 6436 #ifdef DEBUG | |
| 6437 if (retval) { | |
| 6438 VHCI_DEBUG(2, (CE_WARN, NULL, "!vhci_get_ioc: cmd <%s> " | |
| 6439 "switch_to_cntlr_iocdata copyin failed", s)); | |
| 6440 } | |
| 6441 #endif | |
| 6442 | |
| 6443 return (retval); | |
| 6444 } | |
| 6445 | |
| 6446 | |
| 6447 /* | |
| 6448 * Routine to allocate memory for the path information structures. | |
| 6449 * It allocates two chunks of memory - one for keeping userland | |
| 6450 * pointers/values for path information and path properties, second for | |
| 6451 * keeping allocating kernel memory for path properties. These path | |
| 6452 * properties are finally copied to userland. | |
| 6453 */ | |
| 6454 /* ARGSUSED */ | |
| 6455 static int | |
| 6456 vhci_ioc_alloc_pathinfo(sv_path_info_t **upibuf, sv_path_info_t **kpibuf, | |
| 6457 uint_t num_paths, sv_iocdata_t *pioc, int mode, caddr_t s) | |
| 6458 { | |
| 6459 sv_path_info_t *pi; | |
| 6460 uint_t bufsize; | |
| 6461 int retval = 0; | |
| 6462 int index; | |
| 6463 | |
| 6464 /* Allocate memory */ | |
| 6465 *upibuf = (sv_path_info_t *) | |
| 6466 kmem_zalloc(sizeof (sv_path_info_t) * num_paths, KM_SLEEP); | |
| 6467 ASSERT(*upibuf != NULL); | |
| 6468 *kpibuf = (sv_path_info_t *) | |
| 6469 kmem_zalloc(sizeof (sv_path_info_t) * num_paths, KM_SLEEP); | |
| 6470 ASSERT(*kpibuf != NULL); | |
| 6471 | |
| 6472 /* | |
| 6473 * Get the path info structure from the user space. | |
| 6474 * We are interested in the following fields: | |
| 6475 * - user size of buffer for per path properties. | |
| 6476 * - user address of buffer for path info properties. | |
| 6477 * - user pointer for returning actual buffer size | |
| 6478 * Keep these fields in the 'upibuf' structures. | |
| 6479 * Allocate buffer for per path info properties in kernel | |
| 6480 * structure ('kpibuf'). | |
| 6481 * Size of these buffers will be equal to the size of buffers | |
| 6482 * in the user space. | |
| 6483 */ | |
| 6484 #ifdef _MULTI_DATAMODEL | |
| 6485 switch (ddi_model_convert_from(mode & FMODELS)) { | |
| 6486 case DDI_MODEL_ILP32: | |
| 6487 { | |
| 6488 sv_path_info32_t *src; | |
| 6489 sv_path_info32_t pi32; | |
| 6490 | |
| 6491 src = (sv_path_info32_t *)pioc->ret_buf; | |
| 6492 pi = (sv_path_info_t *)*upibuf; | |
| 6493 for (index = 0; index < num_paths; index++, src++, pi++) { | |
| 6494 if (ddi_copyin(src, &pi32, sizeof (pi32), mode)) { | |
| 6495 retval = EFAULT; | |
| 6496 break; | |
| 6497 } | |
| 6498 | |
| 6499 pi->ret_prop.buf_size = | |
| 6500 (uint_t)pi32.ret_prop.buf_size; | |
| 6501 pi->ret_prop.ret_buf_size = | |
| 6502 (uint_t *)(uintptr_t)pi32.ret_prop.ret_buf_size; | |
| 6503 pi->ret_prop.buf = | |
| 6504 (caddr_t)(uintptr_t)pi32.ret_prop.buf; | |
| 6505 } | |
| 6506 break; | |
| 6507 } | |
| 6508 | |
| 6509 case DDI_MODEL_NONE: | |
| 6510 if (ddi_copyin(pioc->ret_buf, *upibuf, | |
| 6511 sizeof (sv_path_info_t) * num_paths, mode)) { | |
| 6512 retval = EFAULT; | |
| 6513 } | |
| 6514 break; | |
| 6515 } | |
| 6516 #else /* _MULTI_DATAMODEL */ | |
| 6517 if (ddi_copyin(pioc->ret_buf, *upibuf, | |
| 6518 sizeof (sv_path_info_t) * num_paths, mode)) { | |
| 6519 retval = EFAULT; | |
| 6520 } | |
| 6521 #endif /* _MULTI_DATAMODEL */ | |
| 6522 | |
| 6523 if (retval != 0) { | |
| 6524 VHCI_DEBUG(2, (CE_WARN, NULL, "!vhci_alloc_path_info: " | |
| 6525 "ioctl <%s> normal: path_info copyin failed", s)); | |
| 6526 kmem_free(*upibuf, sizeof (sv_path_info_t) * num_paths); | |
| 6527 kmem_free(*kpibuf, sizeof (sv_path_info_t) * num_paths); | |
| 6528 *upibuf = NULL; | |
| 6529 *kpibuf = NULL; | |
| 6530 return (retval); | |
| 6531 } | |
| 6532 | |
| 6533 /* | |
| 6534 * Allocate memory for per path properties. | |
| 6535 */ | |
| 6536 for (index = 0, pi = *kpibuf; index < num_paths; index++, pi++) { | |
| 6537 bufsize = (*upibuf)[index].ret_prop.buf_size; | |
| 6538 | |
| 6539 if (bufsize && bufsize <= SV_PROP_MAX_BUF_SIZE) { | |
| 6540 pi->ret_prop.buf_size = bufsize; | |
| 6541 pi->ret_prop.buf = (caddr_t) | |
| 6542 kmem_zalloc(bufsize, KM_SLEEP); | |
| 6543 ASSERT(pi->ret_prop.buf != NULL); | |
| 6544 } else { | |
| 6545 pi->ret_prop.buf_size = 0; | |
| 6546 pi->ret_prop.buf = NULL; | |
| 6547 } | |
| 6548 | |
| 6549 if ((*upibuf)[index].ret_prop.ret_buf_size != NULL) { | |
| 6550 pi->ret_prop.ret_buf_size = (uint_t *)kmem_zalloc( | |
| 6551 sizeof (*pi->ret_prop.ret_buf_size), KM_SLEEP); | |
| 6552 ASSERT(pi->ret_prop.ret_buf_size != NULL); | |
| 6553 } else { | |
| 6554 pi->ret_prop.ret_buf_size = NULL; | |
| 6555 } | |
| 6556 } | |
| 6557 | |
| 6558 return (0); | |
| 6559 } | |
| 6560 | |
| 6561 | |
| 6562 /* | |
| 6563 * Routine to free memory for the path information structures. | |
| 6564 * This is the memory which was allocated earlier. | |
| 6565 */ | |
| 6566 /* ARGSUSED */ | |
| 6567 static void | |
| 6568 vhci_ioc_free_pathinfo(sv_path_info_t *upibuf, sv_path_info_t *kpibuf, | |
| 6569 uint_t num_paths) | |
| 6570 { | |
| 6571 sv_path_info_t *pi; | |
| 6572 int index; | |
| 6573 | |
| 6574 /* Free memory for per path properties */ | |
| 6575 for (index = 0, pi = kpibuf; index < num_paths; index++, pi++) { | |
| 6576 if (pi->ret_prop.ret_buf_size != NULL) { | |
| 6577 kmem_free(pi->ret_prop.ret_buf_size, | |
| 6578 sizeof (*pi->ret_prop.ret_buf_size)); | |
| 6579 } | |
| 6580 | |
| 6581 if (pi->ret_prop.buf != NULL) { | |
| 6582 kmem_free(pi->ret_prop.buf, pi->ret_prop.buf_size); | |
| 6583 } | |
| 6584 } | |
| 6585 | |
| 6586 /* Free memory for path info structures */ | |
| 6587 kmem_free(upibuf, sizeof (sv_path_info_t) * num_paths); | |
| 6588 kmem_free(kpibuf, sizeof (sv_path_info_t) * num_paths); | |
| 6589 } | |
| 6590 | |
| 6591 | |
| 6592 /* | |
| 6593 * Routine to copy path information and path properties to userland. | |
| 6594 */ | |
| 6595 /* ARGSUSED */ | |
| 6596 static int | |
| 6597 vhci_ioc_send_pathinfo(sv_path_info_t *upibuf, sv_path_info_t *kpibuf, | |
| 6598 uint_t num_paths, sv_iocdata_t *pioc, int mode, caddr_t s) | |
| 6599 { | |
| 6600 int retval = 0, index; | |
| 6601 sv_path_info_t *upi_ptr; | |
| 6602 sv_path_info32_t *upi32_ptr; | |
| 6603 | |
| 6604 #ifdef _MULTI_DATAMODEL | |
| 6605 switch (ddi_model_convert_from(mode & FMODELS)) { | |
| 6606 case DDI_MODEL_ILP32: | |
| 6607 goto copy_32bit; | |
| 6608 | |
| 6609 case DDI_MODEL_NONE: | |
| 6610 goto copy_normal; | |
| 6611 } | |
| 6612 #else /* _MULTI_DATAMODEL */ | |
| 6613 | |
| 6614 goto copy_normal; | |
| 6615 | |
| 6616 #endif /* _MULTI_DATAMODEL */ | |
| 6617 | |
| 6618 copy_normal: | |
| 6619 | |
| 6620 /* | |
| 6621 * Copy path information and path properties to user land. | |
| 6622 * Pointer fields inside the path property structure were | |
| 6623 * saved in the 'upibuf' structure earlier. | |
| 6624 */ | |
| 6625 upi_ptr = pioc->ret_buf; | |
| 6626 for (index = 0; index < num_paths; index++) { | |
| 6627 if (ddi_copyout(kpibuf[index].device.ret_ct, | |
| 6628 upi_ptr[index].device.ret_ct, MAXPATHLEN, mode)) { | |
| 6629 retval = EFAULT; | |
| 6630 break; | |
| 6631 } | |
| 6632 | |
| 6633 if (ddi_copyout(kpibuf[index].ret_addr, | |
| 6634 upi_ptr[index].ret_addr, MAXNAMELEN, mode)) { | |
| 6635 retval = EFAULT; | |
| 6636 break; | |
| 6637 } | |
| 6638 | |
| 6639 if (ddi_copyout(&kpibuf[index].ret_state, | |
| 6640 &upi_ptr[index].ret_state, sizeof (kpibuf[index].ret_state), | |
| 6641 mode)) { | |
| 6642 retval = EFAULT; | |
| 6643 break; | |
| 6644 } | |
| 6645 | |
| 6646 if (ddi_copyout(&kpibuf[index].ret_ext_state, | |
| 6647 &upi_ptr[index].ret_ext_state, | |
| 6648 sizeof (kpibuf[index].ret_ext_state), mode)) { | |
| 6649 retval = EFAULT; | |
| 6650 break; | |
| 6651 } | |
| 6652 | |
| 6653 if ((kpibuf[index].ret_prop.ret_buf_size != NULL) && | |
| 6654 ddi_copyout(kpibuf[index].ret_prop.ret_buf_size, | |
| 6655 upibuf[index].ret_prop.ret_buf_size, | |
| 6656 sizeof (*upibuf[index].ret_prop.ret_buf_size), mode)) { | |
| 6657 retval = EFAULT; | |
| 6658 break; | |
| 6659 } | |
| 6660 | |
| 6661 if ((kpibuf[index].ret_prop.buf != NULL) && | |
| 6662 ddi_copyout(kpibuf[index].ret_prop.buf, | |
| 6663 upibuf[index].ret_prop.buf, | |
| 6664 upibuf[index].ret_prop.buf_size, mode)) { | |
| 6665 retval = EFAULT; | |
| 6666 break; | |
| 6667 } | |
| 6668 } | |
| 6669 | |
| 6670 #ifdef DEBUG | |
| 6671 if (retval) { | |
| 6672 VHCI_DEBUG(2, (CE_WARN, NULL, "!vhci_get_ioc: ioctl <%s> " | |
| 6673 "normal: path_info copyout failed", s)); | |
| 6674 } | |
| 6675 #endif | |
| 6676 | |
| 6677 return (retval); | |
| 6678 | |
| 6679 copy_32bit: | |
| 6680 /* | |
| 6681 * Copy path information and path properties to user land. | |
| 6682 * Pointer fields inside the path property structure were | |
| 6683 * saved in the 'upibuf' structure earlier. | |
| 6684 */ | |
| 6685 upi32_ptr = (sv_path_info32_t *)pioc->ret_buf; | |
| 6686 for (index = 0; index < num_paths; index++) { | |
| 6687 if (ddi_copyout(kpibuf[index].device.ret_ct, | |
| 6688 upi32_ptr[index].device.ret_ct, MAXPATHLEN, mode)) { | |
| 6689 retval = EFAULT; | |
| 6690 break; | |
| 6691 } | |
| 6692 | |
| 6693 if (ddi_copyout(kpibuf[index].ret_addr, | |
| 6694 upi32_ptr[index].ret_addr, MAXNAMELEN, mode)) { | |
| 6695 retval = EFAULT; | |
| 6696 break; | |
| 6697 } | |
| 6698 | |
| 6699 if (ddi_copyout(&kpibuf[index].ret_state, | |
| 6700 &upi32_ptr[index].ret_state, | |
| 6701 sizeof (kpibuf[index].ret_state), mode)) { | |
| 6702 retval = EFAULT; | |
| 6703 break; | |
| 6704 } | |
| 6705 | |
| 6706 if (ddi_copyout(&kpibuf[index].ret_ext_state, | |
| 6707 &upi32_ptr[index].ret_ext_state, | |
| 6708 sizeof (kpibuf[index].ret_ext_state), mode)) { | |
| 6709 retval = EFAULT; | |
| 6710 break; | |
| 6711 } | |
| 6712 if ((kpibuf[index].ret_prop.ret_buf_size != NULL) && | |
| 6713 ddi_copyout(kpibuf[index].ret_prop.ret_buf_size, | |
| 6714 upibuf[index].ret_prop.ret_buf_size, | |
| 6715 sizeof (*upibuf[index].ret_prop.ret_buf_size), mode)) { | |
| 6716 retval = EFAULT; | |
| 6717 break; | |
| 6718 } | |
| 6719 | |
| 6720 if ((kpibuf[index].ret_prop.buf != NULL) && | |
| 6721 ddi_copyout(kpibuf[index].ret_prop.buf, | |
| 6722 upibuf[index].ret_prop.buf, | |
| 6723 upibuf[index].ret_prop.buf_size, mode)) { | |
| 6724 retval = EFAULT; | |
| 6725 break; | |
| 6726 } | |
| 6727 } | |
| 6728 | |
| 6729 #ifdef DEBUG | |
| 6730 if (retval) { | |
| 6731 VHCI_DEBUG(2, (CE_WARN, NULL, "!vhci_get_ioc: ioctl <%s> " | |
| 6732 "normal: path_info copyout failed", s)); | |
| 6733 } | |
| 6734 #endif | |
| 6735 | |
| 6736 return (retval); | |
| 6737 } | |
| 6738 | |
| 6739 | |
| 6740 /* | |
| 6741 * vhci_failover() | |
| 6742 * This routine expects VHCI_HOLD_LUN before being invoked. It can be invoked | |
| 6743 * as MDI_FAILOVER_ASYNC or MDI_FAILOVER_SYNC. For Asynchronous failovers | |
| 6744 * this routine shall VHCI_RELEASE_LUN on exiting. For synchronous failovers | |
| 6745 * it is the callers responsibility to release lun. | |
| 6746 */ | |
| 6747 | |
| 6748 /* ARGSUSED */ | |
| 6749 static int | |
| 6750 vhci_failover(dev_info_t *vdip, dev_info_t *cdip, int flags) | |
| 6751 { | |
| 6752 char *guid; | |
| 6753 scsi_vhci_lun_t *vlun = NULL; | |
| 6754 struct scsi_vhci *vhci; | |
| 6755 mdi_pathinfo_t *pip, *npip; | |
| 6756 char *s_pclass, *pclass1, *pclass2, *pclass; | |
| 6757 char active_pclass_copy[255], *active_pclass_ptr; | |
| 6758 char *ptr1, *ptr2; | |
| 6759 mdi_pathinfo_state_t pi_state; | |
| 6760 uint32_t pi_ext_state; | |
| 6761 scsi_vhci_priv_t *svp; | |
| 6762 struct scsi_device *sd; | |
| 6763 struct scsi_failover_ops *sfo; | |
| 6764 int sps; /* mdi_select_path() status */ | |
| 6765 int activation_done = 0; | |
| 6766 int rval, retval = MDI_FAILURE; | |
| 6767 int reserve_pending, check_condition, UA_condition; | |
| 6768 struct scsi_pkt *pkt; | |
| 6769 struct buf *bp; | |
| 6770 | |
| 6771 vhci = ddi_get_soft_state(vhci_softstate, ddi_get_instance(vdip)); | |
| 6772 sd = ddi_get_driver_private(cdip); | |
| 6773 vlun = ADDR2VLUN(&sd->sd_address); | |
| 6774 ASSERT(vlun != 0); | |
| 6775 ASSERT(VHCI_LUN_IS_HELD(vlun)); | |
| 6776 guid = vlun->svl_lun_wwn; | |
| 6777 VHCI_DEBUG(1, (CE_NOTE, NULL, "!vhci_failover(1): guid %s\n", guid)); | |
| 6778 vhci_log(CE_NOTE, vdip, "!Initiating failover for device %s " | |
| 6779 "(GUID %s)", ddi_node_name(cdip), guid); | |
| 6780 | |
| 6781 /* | |
| 6782 * Lets maintain a local copy of the vlun->svl_active_pclass | |
| 6783 * for the rest of the processing. Accessing the field | |
| 6784 * directly in the loop below causes loop logic to break | |
| 6785 * especially when the field gets updated by other threads | |
| 6786 * update path status etc and causes 'paths are not currently | |
| 6787 * available' condition to be declared prematurely. | |
| 6788 */ | |
| 6789 mutex_enter(&vlun->svl_mutex); | |
| 6790 if (vlun->svl_active_pclass != NULL) { | |
| 6791 (void) strlcpy(active_pclass_copy, vlun->svl_active_pclass, | |
| 6792 sizeof (active_pclass_copy)); | |
| 6793 active_pclass_ptr = &active_pclass_copy[0]; | |
| 6794 mutex_exit(&vlun->svl_mutex); | |
| 6795 if (vhci_quiesce_paths(vdip, cdip, vlun, guid, | |
| 6796 active_pclass_ptr) != 0) { | |
| 6797 retval = MDI_FAILURE; | |
| 6798 } | |
| 6799 } else { | |
| 6800 /* | |
| 6801 * can happen only when the available path to device | |
| 6802 * discovered is a STANDBY path. | |
| 6803 */ | |
| 6804 mutex_exit(&vlun->svl_mutex); | |
| 6805 active_pclass_copy[0] = '\0'; | |
| 6806 active_pclass_ptr = NULL; | |
| 6807 } | |
| 6808 | |
| 6809 sfo = vlun->svl_fops; | |
| 6810 ASSERT(sfo != NULL); | |
| 6811 pclass1 = s_pclass = active_pclass_ptr; | |
| 6812 VHCI_DEBUG(1, (CE_NOTE, NULL, "!(%s)failing over from %s\n", guid, | |
| 6813 (s_pclass == NULL ? "<none>" : s_pclass))); | |
| 6814 | |
| 6815 next_pathclass: | |
| 6816 | |
|
6941
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diff
changeset
|
6817 rval = sfo->sfo_pathclass_next(pclass1, &pclass2, |
| 4851 | 6818 vlun->svl_fops_ctpriv); |
| 6819 if (rval == ENOENT) { | |
| 6820 if (s_pclass == NULL) { | |
| 6821 VHCI_DEBUG(1, (CE_NOTE, NULL, "!vhci_failover(4)(%s): " | |
| 6822 "failed, no more pathclasses\n", guid)); | |
| 6823 goto done; | |
| 6824 } else { | |
|
6941
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
rralphs
parents:
6777
diff
changeset
|
6825 (void) sfo->sfo_pathclass_next(NULL, &pclass2, |
| 4851 | 6826 vlun->svl_fops_ctpriv); |
| 6827 } | |
| 6828 } else if (rval == EINVAL) { | |
| 6829 vhci_log(CE_NOTE, vdip, "!Failover operation failed for " | |
| 6830 "device %s (GUID %s): Invalid path-class %s", | |
| 6831 ddi_node_name(cdip), guid, | |
| 6832 ((pclass1 == NULL) ? "<none>" : pclass1)); | |
| 6833 goto done; | |
| 6834 } | |
| 6835 if ((s_pclass != NULL) && (strcmp(pclass2, s_pclass) == 0)) { | |
| 6836 /* | |
| 6837 * paths are not currently available | |
| 6838 */ | |
| 6839 vhci_log(CE_NOTE, vdip, "!Failover path currently unavailable" | |
| 6840 " for device %s (GUID %s)", | |
| 6841 ddi_node_name(cdip), guid); | |
| 6842 goto done; | |
| 6843 } | |
| 6844 pip = npip = NULL; | |
| 6845 VHCI_DEBUG(1, (CE_NOTE, NULL, "!vhci_failover(5.2)(%s): considering " | |
| 6846 "%s as failover destination\n", guid, pclass2)); | |
| 6847 sps = mdi_select_path(cdip, NULL, MDI_SELECT_STANDBY_PATH, NULL, &npip); | |
| 6848 if ((npip == NULL) || (sps != MDI_SUCCESS)) { | |
| 6849 VHCI_DEBUG(1, (CE_NOTE, NULL, "!vhci_failover(%s): no " | |
| 6850 "STANDBY paths found (status:%x)!\n", guid, sps)); | |
| 6851 pclass1 = pclass2; | |
| 6852 goto next_pathclass; | |
| 6853 } | |
| 6854 do { | |
| 6855 pclass = NULL; | |
| 6856 if ((mdi_prop_lookup_string(npip, "path-class", | |
| 6857 &pclass) != MDI_SUCCESS) || (strcmp(pclass2, | |
| 6858 pclass) != 0)) { | |
| 6859 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
| 6860 "!vhci_failover(5.5)(%s): skipping path " | |
| 6861 "%p(%s)...\n", guid, (void *)npip, pclass)); | |
| 6862 pip = npip; | |
| 6863 sps = mdi_select_path(cdip, NULL, | |
| 6864 MDI_SELECT_STANDBY_PATH, pip, &npip); | |
| 6865 mdi_rele_path(pip); | |
| 6866 (void) mdi_prop_free(pclass); | |
| 6867 continue; | |
| 6868 } | |
| 6869 svp = (scsi_vhci_priv_t *)mdi_pi_get_vhci_private(npip); | |
| 6870 | |
| 6871 /* | |
| 6872 * Issue READ at non-zer block on this STANDBY path. | |
| 6873 * Purple returns | |
| 6874 * 1. RESERVATION_CONFLICT if reservation is pending | |
| 6875 * 2. POR check condition if it reset happened. | |
| 6876 * 2. failover Check Conditions if one is already in progress. | |
| 6877 */ | |
| 6878 reserve_pending = 0; | |
| 6879 check_condition = 0; | |
| 6880 UA_condition = 0; | |
| 6881 | |
| 6882 bp = scsi_alloc_consistent_buf(&svp->svp_psd->sd_address, | |
| 6883 (struct buf *)NULL, DEV_BSIZE, B_READ, NULL, NULL); | |
| 6884 if (!bp) { | |
| 6885 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
| 6886 "vhci_failover !No resources (buf)\n")); | |
| 6887 mdi_rele_path(npip); | |
| 6888 goto done; | |
| 6889 } | |
| 6890 pkt = scsi_init_pkt(&svp->svp_psd->sd_address, NULL, bp, | |
| 6891 CDB_GROUP1, sizeof (struct scsi_arq_status), 0, | |
| 6892 PKT_CONSISTENT, NULL, NULL); | |
| 6893 if (pkt) { | |
| 6894 (void) scsi_setup_cdb((union scsi_cdb *)(uintptr_t) | |
| 6895 pkt->pkt_cdbp, SCMD_READ, 1, 1, 0); | |
| 6896 pkt->pkt_flags = FLAG_NOINTR; | |
| 6897 check_path_again: | |
|
6640
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parents:
6042
diff
changeset
|
6898 pkt->pkt_path_instance = mdi_pi_get_path_instance(npip); |
| 4851 | 6899 pkt->pkt_time = 3*30; |
|
6640
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parents:
6042
diff
changeset
|
6900 |
| 4851 | 6901 if (scsi_transport(pkt) == TRAN_ACCEPT) { |
| 6902 switch (pkt->pkt_reason) { | |
| 6903 case CMD_CMPLT: | |
| 6904 switch (SCBP_C(pkt)) { | |
| 6905 case STATUS_GOOD: | |
| 6906 /* Already failed over */ | |
| 6907 activation_done = 1; | |
| 6908 break; | |
| 6909 case STATUS_RESERVATION_CONFLICT: | |
| 6910 reserve_pending = 1; | |
| 6911 break; | |
| 6912 case STATUS_CHECK: | |
| 6913 check_condition = 1; | |
| 6914 break; | |
| 6915 } | |
| 6916 } | |
| 6917 } | |
| 6918 if (check_condition && | |
| 6919 (pkt->pkt_state & STATE_ARQ_DONE)) { | |
| 6920 struct scsi_extended_sense *sns = | |
| 6921 &(((struct scsi_arq_status *)(uintptr_t) | |
| 6922 (pkt->pkt_scbp))->sts_sensedata); | |
| 6923 if (sns->es_key == KEY_UNIT_ATTENTION && | |
| 6924 sns->es_add_code == 0x29) { | |
| 6925 /* Already failed over */ | |
| 6926 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
| 6927 "!vhci_failover(7)(%s): " | |
| 6928 "path 0x%p POR UA condition\n", | |
| 6929 guid, (void *)npip)); | |
| 6930 if (UA_condition == 0) { | |
| 6931 UA_condition = 1; | |
| 6932 goto check_path_again; | |
| 6933 } | |
| 6934 } else { | |
| 6935 activation_done = 0; | |
| 6936 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
| 6937 "!vhci_failover(%s): path 0x%p " | |
| 6938 "unhandled chkcond %x %x %x\n", | |
| 6939 guid, (void *)npip, sns->es_key, | |
| 6940 sns->es_add_code, | |
| 6941 sns->es_qual_code)); | |
| 6942 } | |
| 6943 } | |
| 6944 scsi_destroy_pkt(pkt); | |
| 6945 } | |
| 6946 scsi_free_consistent_buf(bp); | |
| 6947 | |
| 6948 if (activation_done) { | |
| 6949 mdi_rele_path(npip); | |
| 6950 VHCI_DEBUG(1, (CE_NOTE, NULL, "!vhci_failover(7)(%s): " | |
| 6951 "path 0x%p already failedover\n", guid, | |
| 6952 (void *)npip)); | |
| 6953 break; | |
| 6954 } | |
| 6955 if (reserve_pending && (vlun->svl_xlf_capable == 0)) { | |
| 6956 (void) vhci_recovery_reset(vlun, | |
| 6957 &svp->svp_psd->sd_address, | |
| 6958 FALSE, VHCI_DEPTH_ALL); | |
| 6959 } | |
| 6960 VHCI_DEBUG(1, (CE_NOTE, NULL, "!vhci_failover(6)(%s): " | |
| 6961 "activating path 0x%p(psd:%p)\n", guid, (void *)npip, | |
| 6962 (void *)svp->svp_psd)); | |
|
6941
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6459247 scsi_vhci does not return correct value for dma-max property
rralphs
parents:
6777
diff
changeset
|
6963 if (sfo->sfo_path_activate(svp->svp_psd, pclass2, |
| 4851 | 6964 vlun->svl_fops_ctpriv) == 0) { |
| 6965 activation_done = 1; | |
| 6966 mdi_rele_path(npip); | |
| 6967 VHCI_DEBUG(1, (CE_NOTE, NULL, "!vhci_failover(7)(%s): " | |
| 6968 "path 0x%p successfully activated\n", guid, | |
| 6969 (void *)npip)); | |
| 6970 break; | |
| 6971 } | |
| 6972 pip = npip; | |
| 6973 sps = mdi_select_path(cdip, NULL, MDI_SELECT_STANDBY_PATH, | |
| 6974 pip, &npip); | |
| 6975 mdi_rele_path(pip); | |
| 6976 } while ((npip != NULL) && (sps == MDI_SUCCESS)); | |
| 6977 if (activation_done == 0) { | |
| 6978 pclass1 = pclass2; | |
| 6979 goto next_pathclass; | |
| 6980 } | |
| 6981 | |
| 6982 /* | |
| 6983 * if we are here, we have succeeded in activating path npip of | |
| 6984 * pathclass pclass2; let us validate all paths of pclass2 by | |
| 6985 * "ping"-ing each one and mark the good ones ONLINE | |
| 6986 * Also, set the state of the paths belonging to the previously | |
| 6987 * active pathclass to STANDBY | |
| 6988 */ | |
| 6989 pip = npip = NULL; | |
| 6990 sps = mdi_select_path(cdip, NULL, (MDI_SELECT_ONLINE_PATH | | |
| 6991 MDI_SELECT_STANDBY_PATH | MDI_SELECT_USER_DISABLE_PATH), | |
| 6992 NULL, &npip); | |
| 6993 if (npip == NULL || sps != MDI_SUCCESS) { | |
| 6994 VHCI_DEBUG(1, (CE_NOTE, NULL, "!Failover operation failed for " | |
| 6995 "device %s (GUID %s): paths may be busy\n", | |
| 6996 ddi_node_name(cdip), guid)); | |
| 6997 goto done; | |
| 6998 } | |
| 6999 do { | |
| 7000 (void) mdi_pi_get_state2(npip, &pi_state, &pi_ext_state); | |
| 7001 if (mdi_prop_lookup_string(npip, "path-class", &pclass) | |
| 7002 != MDI_SUCCESS) { | |
| 7003 pip = npip; | |
| 7004 sps = mdi_select_path(cdip, NULL, | |
| 7005 (MDI_SELECT_ONLINE_PATH | | |
| 7006 MDI_SELECT_STANDBY_PATH | | |
| 7007 MDI_SELECT_USER_DISABLE_PATH), | |
| 7008 pip, &npip); | |
| 7009 mdi_rele_path(pip); | |
| 7010 continue; | |
| 7011 } | |
| 7012 if (strcmp(pclass, pclass2) == 0) { | |
| 7013 if (pi_state == MDI_PATHINFO_STATE_STANDBY) { | |
| 7014 svp = (scsi_vhci_priv_t *) | |
| 7015 mdi_pi_get_vhci_private(npip); | |
| 7016 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
| 7017 "!vhci_failover(8)(%s): " | |
| 7018 "pinging path 0x%p\n", | |
| 7019 guid, (void *)npip)); | |
|
6941
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
rralphs
parents:
6777
diff
changeset
|
7020 if (sfo->sfo_path_ping(svp->svp_psd, |
| 4851 | 7021 vlun->svl_fops_ctpriv) == 1) { |
| 7022 mdi_pi_set_state(npip, | |
| 7023 MDI_PATHINFO_STATE_ONLINE); | |
| 7024 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
| 7025 "!vhci_failover(9)(%s): " | |
| 7026 "path 0x%p ping successful, " | |
| 7027 "marked online\n", guid, | |
| 7028 (void *)npip)); | |
| 7029 MDI_PI_ERRSTAT(npip, MDI_PI_FAILTO); | |
| 7030 } | |
| 7031 } | |
| 7032 } else if ((s_pclass != NULL) && (strcmp(pclass, s_pclass) | |
| 7033 == 0)) { | |
| 7034 if (pi_state == MDI_PATHINFO_STATE_ONLINE) { | |
| 7035 mdi_pi_set_state(npip, | |
| 7036 MDI_PATHINFO_STATE_STANDBY); | |
| 7037 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
| 7038 "!vhci_failover(10)(%s): path 0x%p marked " | |
| 7039 "STANDBY\n", guid, (void *)npip)); | |
| 7040 MDI_PI_ERRSTAT(npip, MDI_PI_FAILFROM); | |
| 7041 } | |
| 7042 } | |
| 7043 (void) mdi_prop_free(pclass); | |
| 7044 pip = npip; | |
| 7045 sps = mdi_select_path(cdip, NULL, (MDI_SELECT_ONLINE_PATH | | |
| 7046 MDI_SELECT_STANDBY_PATH|MDI_SELECT_USER_DISABLE_PATH), | |
| 7047 pip, &npip); | |
| 7048 mdi_rele_path(pip); | |
| 7049 } while ((npip != NULL) && (sps == MDI_SUCCESS)); | |
| 7050 | |
| 7051 /* | |
| 7052 * Update the AccessState of related MP-API TPGs | |
| 7053 */ | |
| 7054 (void) vhci_mpapi_update_tpg_acc_state_for_lu(vhci, vlun); | |
| 7055 | |
| 7056 vhci_log(CE_NOTE, vdip, "!Failover operation completed successfully " | |
| 7057 "for device %s (GUID %s): failed over from %s to %s", | |
| 7058 ddi_node_name(cdip), guid, ((s_pclass == NULL) ? "<none>" : | |
| 7059 s_pclass), pclass2); | |
| 7060 ptr1 = kmem_alloc(strlen(pclass2)+1, KM_SLEEP); | |
| 7061 (void) strlcpy(ptr1, pclass2, (strlen(pclass2)+1)); | |
| 7062 mutex_enter(&vlun->svl_mutex); | |
| 7063 ptr2 = vlun->svl_active_pclass; | |
| 7064 vlun->svl_active_pclass = ptr1; | |
| 7065 mutex_exit(&vlun->svl_mutex); | |
| 7066 if (ptr2) { | |
| 7067 kmem_free(ptr2, strlen(ptr2)+1); | |
| 7068 } | |
| 7069 mutex_enter(&vhci->vhci_mutex); | |
| 7070 scsi_hba_reset_notify_callback(&vhci->vhci_mutex, | |
| 7071 &vhci->vhci_reset_notify_listf); | |
| 7072 /* All reservations are cleared upon these resets. */ | |
| 7073 vlun->svl_flags &= ~VLUN_RESERVE_ACTIVE_FLG; | |
| 7074 mutex_exit(&vhci->vhci_mutex); | |
| 7075 VHCI_DEBUG(1, (CE_NOTE, NULL, "!vhci_failover(11): DONE! Active " | |
| 7076 "pathclass for %s is now %s\n", guid, pclass2)); | |
| 7077 retval = MDI_SUCCESS; | |
| 7078 | |
| 7079 done: | |
| 7080 if (flags == MDI_FAILOVER_ASYNC) { | |
| 7081 VHCI_RELEASE_LUN(vlun); | |
| 7082 VHCI_DEBUG(6, (CE_NOTE, NULL, "!vhci_failover(12): DONE! " | |
| 7083 "releasing lun, as failover was ASYNC\n")); | |
| 7084 } else { | |
| 7085 VHCI_DEBUG(6, (CE_NOTE, NULL, "!vhci_failover(12): DONE! " | |
| 7086 "NOT releasing lun, as failover was SYNC\n")); | |
| 7087 } | |
| 7088 return (retval); | |
| 7089 } | |
| 7090 | |
| 7091 /* | |
| 7092 * vhci_client_attached is called after the successful attach of a | |
| 7093 * client devinfo node. | |
| 7094 */ | |
| 7095 static void | |
| 7096 vhci_client_attached(dev_info_t *cdip) | |
| 7097 { | |
| 7098 mdi_pathinfo_t *pip; | |
| 7099 int circular; | |
| 7100 | |
| 7101 /* | |
| 7102 * At this point the client has attached and it's instance number is | |
| 7103 * valid, so we can set up kstats. We need to do this here because it | |
| 7104 * is possible for paths to go online prior to client attach, in which | |
| 7105 * case the call to vhci_kstat_create_pathinfo in vhci_pathinfo_online | |
| 7106 * was a noop. | |
| 7107 */ | |
| 7108 ndi_devi_enter(cdip, &circular); | |
| 7109 for (pip = mdi_get_next_phci_path(cdip, NULL); pip; | |
| 7110 pip = mdi_get_next_phci_path(cdip, pip)) | |
| 7111 vhci_kstat_create_pathinfo(pip); | |
| 7112 ndi_devi_exit(cdip, circular); | |
| 7113 } | |
| 7114 | |
| 7115 /* | |
| 7116 * quiesce all of the online paths | |
| 7117 */ | |
| 7118 static int | |
| 7119 vhci_quiesce_paths(dev_info_t *vdip, dev_info_t *cdip, scsi_vhci_lun_t *vlun, | |
| 7120 char *guid, char *active_pclass_ptr) | |
| 7121 { | |
| 7122 scsi_vhci_priv_t *svp; | |
| 7123 char *s_pclass = NULL; | |
| 7124 mdi_pathinfo_t *npip, *pip; | |
| 7125 int sps; | |
| 7126 | |
| 7127 /* quiesce currently active paths */ | |
| 7128 s_pclass = NULL; | |
| 7129 pip = npip = NULL; | |
| 7130 sps = mdi_select_path(cdip, NULL, MDI_SELECT_ONLINE_PATH, NULL, &npip); | |
| 7131 if ((npip == NULL) || (sps != MDI_SUCCESS)) { | |
| 7132 return (1); | |
| 7133 } | |
| 7134 do { | |
| 7135 if (mdi_prop_lookup_string(npip, "path-class", | |
| 7136 &s_pclass) != MDI_SUCCESS) { | |
| 7137 mdi_rele_path(npip); | |
| 7138 vhci_log(CE_NOTE, vdip, "!Failover operation failed " | |
| 7139 "for device %s (GUID %s) due to an internal " | |
| 7140 "error", ddi_node_name(cdip), guid); | |
| 7141 return (1); | |
| 7142 } | |
| 7143 if (strcmp(s_pclass, active_pclass_ptr) == 0) { | |
| 7144 /* | |
| 7145 * quiesce path. Free s_pclass since | |
| 7146 * we don't need it anymore | |
| 7147 */ | |
| 7148 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
| 7149 "!vhci_failover(2)(%s): failing over " | |
| 7150 "from %s; quiescing path %p\n", | |
| 7151 guid, s_pclass, (void *)npip)); | |
| 7152 (void) mdi_prop_free(s_pclass); | |
| 7153 svp = (scsi_vhci_priv_t *) | |
| 7154 mdi_pi_get_vhci_private(npip); | |
| 7155 if (svp == NULL) { | |
| 7156 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
| 7157 "!vhci_failover(2.5)(%s): no " | |
| 7158 "client priv! %p offlined?\n", | |
| 7159 guid, (void *)npip)); | |
| 7160 pip = npip; | |
| 7161 sps = mdi_select_path(cdip, NULL, | |
| 7162 MDI_SELECT_ONLINE_PATH, pip, &npip); | |
| 7163 mdi_rele_path(pip); | |
| 7164 continue; | |
| 7165 } | |
| 7166 if (scsi_abort(&svp->svp_psd->sd_address, NULL) | |
| 7167 == 0) { | |
| 7168 (void) vhci_recovery_reset(vlun, | |
| 7169 &svp->svp_psd->sd_address, FALSE, | |
| 7170 VHCI_DEPTH_TARGET); | |
| 7171 } | |
| 7172 mutex_enter(&svp->svp_mutex); | |
| 7173 if (svp->svp_cmds == 0) { | |
| 7174 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
| 7175 "!vhci_failover(3)(%s):" | |
| 7176 "quiesced path %p\n", guid, (void *)npip)); | |
| 7177 } else { | |
| 7178 while (svp->svp_cmds != 0) { | |
| 7179 cv_wait(&svp->svp_cv, &svp->svp_mutex); | |
| 7180 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
| 7181 "!vhci_failover(3.cv)(%s):" | |
| 7182 "quiesced path %p\n", guid, | |
| 7183 (void *)npip)); | |
| 7184 } | |
| 7185 } | |
| 7186 mutex_exit(&svp->svp_mutex); | |
| 7187 } else { | |
| 7188 /* | |
| 7189 * make sure we freeup the memory | |
| 7190 */ | |
| 7191 (void) mdi_prop_free(s_pclass); | |
| 7192 } | |
| 7193 pip = npip; | |
| 7194 sps = mdi_select_path(cdip, NULL, MDI_SELECT_ONLINE_PATH, | |
| 7195 pip, &npip); | |
| 7196 mdi_rele_path(pip); | |
| 7197 } while ((npip != NULL) && (sps == MDI_SUCCESS)); | |
| 7198 return (0); | |
| 7199 } | |
| 7200 | |
| 7201 static struct scsi_vhci_lun * | |
| 7202 vhci_lun_lookup(dev_info_t *tgt_dip) | |
| 7203 { | |
| 7204 return ((struct scsi_vhci_lun *) | |
| 7205 mdi_client_get_vhci_private(tgt_dip)); | |
| 7206 } | |
| 7207 | |
| 7208 static struct scsi_vhci_lun * | |
| 7209 vhci_lun_lookup_alloc(dev_info_t *tgt_dip, char *guid, int *didalloc) | |
| 7210 { | |
| 7211 struct scsi_vhci_lun *svl; | |
| 7212 | |
| 7213 if (svl = vhci_lun_lookup(tgt_dip)) { | |
| 7214 return (svl); | |
| 7215 } | |
| 7216 | |
| 7217 svl = kmem_zalloc(sizeof (*svl), KM_SLEEP); | |
| 7218 svl->svl_lun_wwn = kmem_zalloc(strlen(guid)+1, KM_SLEEP); | |
| 7219 (void) strcpy(svl->svl_lun_wwn, guid); | |
| 7220 mutex_init(&svl->svl_mutex, NULL, MUTEX_DRIVER, NULL); | |
| 7221 cv_init(&svl->svl_cv, NULL, CV_DRIVER, NULL); | |
| 7222 sema_init(&svl->svl_pgr_sema, 1, NULL, SEMA_DRIVER, NULL); | |
| 7223 svl->svl_waiting_for_activepath = 1; | |
| 7224 svl->svl_sector_size = 1; | |
| 7225 mdi_client_set_vhci_private(tgt_dip, svl); | |
| 7226 *didalloc = 1; | |
| 7227 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
| 7228 "vhci_lun_lookup_alloc: guid %s vlun 0x%p\n", | |
| 7229 guid, (void *)svl)); | |
| 7230 return (svl); | |
| 7231 } | |
| 7232 | |
| 7233 static void | |
| 7234 vhci_lun_free(dev_info_t *tgt_dip) | |
| 7235 { | |
| 7236 struct scsi_vhci_lun *dvlp; | |
| 7237 char *guid; | |
|
4882
272a171bc996
6531069 SCSI2 (tc_mhioctkown test cases) testing are showing UNRESOLVED results for ST2530
jw149990
parents:
4851
diff
changeset
|
7238 struct scsi_device *sd; |
|
272a171bc996
6531069 SCSI2 (tc_mhioctkown test cases) testing are showing UNRESOLVED results for ST2530
jw149990
parents:
4851
diff
changeset
|
7239 |
|
272a171bc996
6531069 SCSI2 (tc_mhioctkown test cases) testing are showing UNRESOLVED results for ST2530
jw149990
parents:
4851
diff
changeset
|
7240 /* |
|
272a171bc996
6531069 SCSI2 (tc_mhioctkown test cases) testing are showing UNRESOLVED results for ST2530
jw149990
parents:
4851
diff
changeset
|
7241 * 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
|
7242 * 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
|
7243 */ |
|
272a171bc996
6531069 SCSI2 (tc_mhioctkown test cases) testing are showing UNRESOLVED results for ST2530
jw149990
parents:
4851
diff
changeset
|
7244 sd = (struct scsi_device *)ddi_get_driver_private(tgt_dip); |
| 4851 | 7245 |
| 7246 dvlp = (struct scsi_vhci_lun *) | |
| 7247 mdi_client_get_vhci_private(tgt_dip); | |
| 7248 ASSERT(dvlp != NULL); | |
| 7249 | |
| 7250 mdi_client_set_vhci_private(tgt_dip, NULL); | |
| 7251 | |
| 7252 guid = dvlp->svl_lun_wwn; | |
| 7253 ASSERT(guid != NULL); | |
| 7254 VHCI_DEBUG(4, (CE_NOTE, NULL, "!vhci_lun_free: %s\n", guid)); | |
| 7255 | |
| 7256 mutex_enter(&dvlp->svl_mutex); | |
| 7257 if (dvlp->svl_active_pclass != NULL) { | |
| 7258 kmem_free(dvlp->svl_active_pclass, | |
| 7259 strlen(dvlp->svl_active_pclass)+1); | |
| 7260 } | |
| 7261 dvlp->svl_active_pclass = NULL; | |
| 7262 mutex_exit(&dvlp->svl_mutex); | |
| 7263 | |
| 7264 if (dvlp->svl_lun_wwn != NULL) { | |
| 7265 kmem_free(dvlp->svl_lun_wwn, strlen(dvlp->svl_lun_wwn)+1); | |
| 7266 } | |
| 7267 dvlp->svl_lun_wwn = NULL; | |
| 7268 | |
| 7269 if (dvlp->svl_fops_name) { | |
| 7270 kmem_free(dvlp->svl_fops_name, strlen(dvlp->svl_fops_name)+1); | |
| 7271 } | |
| 7272 dvlp->svl_fops_name = NULL; | |
| 7273 | |
|
6023
9adf47ae28c4
6634757 add support for the HDS midrange array subsystem
cm136836
parents:
4949
diff
changeset
|
7274 if (dvlp->svl_fops_ctpriv != NULL) { |
|
9adf47ae28c4
6634757 add support for the HDS midrange array subsystem
cm136836
parents:
4949
diff
changeset
|
7275 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
|
7276 } |
|
9adf47ae28c4
6634757 add support for the HDS midrange array subsystem
cm136836
parents:
4949
diff
changeset
|
7277 |
| 4851 | 7278 if (dvlp->svl_flags & VLUN_TASK_D_ALIVE_FLG) |
| 7279 taskq_destroy(dvlp->svl_taskq); | |
| 7280 | |
| 7281 mutex_destroy(&dvlp->svl_mutex); | |
| 7282 cv_destroy(&dvlp->svl_cv); | |
| 7283 sema_destroy(&dvlp->svl_pgr_sema); | |
| 7284 kmem_free(dvlp, sizeof (*dvlp)); | |
|
4896
ff3edba9ce8c
6594084 fixing of 6591973 could cause system panic.
jw149990
parents:
4882
diff
changeset
|
7285 /* |
|
ff3edba9ce8c
6594084 fixing of 6591973 could cause system panic.
jw149990
parents:
4882
diff
changeset
|
7286 * vhci_lun_free may be called before the tgt_dip |
|
ff3edba9ce8c
6594084 fixing of 6591973 could cause system panic.
jw149990
parents:
4882
diff
changeset
|
7287 * initialization so check if the sd is NULL. |
|
ff3edba9ce8c
6594084 fixing of 6591973 could cause system panic.
jw149990
parents:
4882
diff
changeset
|
7288 */ |
|
ff3edba9ce8c
6594084 fixing of 6591973 could cause system panic.
jw149990
parents:
4882
diff
changeset
|
7289 if (sd != NULL) |
|
8335
2b50eb467f7f
PSARC/2008/675 SCSI_HBA_ADDR_COMPLEX SCSA data structure linkage
Chris Horne <Chris.Horne@Sun.COM>
parents:
7656
diff
changeset
|
7290 scsi_device_hba_private_set(sd, NULL); |
| 4851 | 7291 } |
| 7292 | |
| 7293 int | |
| 7294 vhci_do_scsi_cmd(struct scsi_pkt *pkt) | |
| 7295 { | |
| 7296 int err = 0; | |
| 7297 int retry_cnt = 0; | |
| 7298 struct scsi_extended_sense *sns; | |
| 7299 | |
|
6941
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
rralphs
parents:
6777
diff
changeset
|
7300 #ifdef DEBUG |
|
6962
225346ebbb42
6719151 scsi_vhci debug kernels spews a *lot* on the console during boot
rralphs
parents:
6941
diff
changeset
|
7301 if (vhci_debug > 5) { |
|
225346ebbb42
6719151 scsi_vhci debug kernels spews a *lot* on the console during boot
rralphs
parents:
6941
diff
changeset
|
7302 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
|
7303 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
|
7304 } |
|
6941
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
rralphs
parents:
6777
diff
changeset
|
7305 #endif |
|
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
rralphs
parents:
6777
diff
changeset
|
7306 |
| 4851 | 7307 retry: |
| 7308 err = scsi_poll(pkt); | |
| 7309 if (err) { | |
| 7310 if (pkt->pkt_cdbp[0] == SCMD_RELEASE) { | |
| 7311 if (SCBP_C(pkt) == STATUS_RESERVATION_CONFLICT) { | |
| 7312 VHCI_DEBUG(1, (CE_NOTE, NULL, | |
| 7313 "!v_s_do_s_c: RELEASE conflict\n")); | |
| 7314 return (0); | |
| 7315 } | |
| 7316 } | |
| 7317 if (retry_cnt++ < 3) { | |
| 7318 VHCI_DEBUG(1, (CE_WARN, NULL, | |
| 7319 "!v_s_do_s_c:retry packet 0x%p " | |
| 7320 "status 0x%x reason %s", | |
| 7321 (void *)pkt, SCBP_C(pkt), | |
| 7322 scsi_rname(pkt->pkt_reason))); | |
| 7323 if ((pkt->pkt_reason == CMD_CMPLT) && | |
| 7324 (SCBP_C(pkt) == STATUS_CHECK) && | |
| 7325 (pkt->pkt_state & STATE_ARQ_DONE)) { | |
| 7326 sns = &(((struct scsi_arq_status *)(uintptr_t) | |
| 7327 (pkt->pkt_scbp))->sts_sensedata); | |
| 7328 VHCI_DEBUG(1, (CE_WARN, NULL, | |
| 7329 "!v_s_do_s_c:retry " | |
| 7330 "packet 0x%p sense data %s", (void *)pkt, | |
| 7331 scsi_sname(sns->es_key))); | |
| 7332 } | |
| 7333 goto retry; | |
| 7334 } | |
| 7335 VHCI_DEBUG(1, (CE_WARN, NULL, | |
| 7336 "!v_s_do_s_c: failed transport 0x%p 0x%x", | |
| 7337 (void *)pkt, SCBP_C(pkt))); | |
| 7338 return (0); | |
| 7339 } | |
| 7340 | |
| 7341 switch (pkt->pkt_reason) { | |
| 7342 case CMD_TIMEOUT: | |
| 7343 VHCI_DEBUG(1, (CE_WARN, NULL, "!pkt timed " | |
| 7344 "out (pkt 0x%p)", (void *)pkt)); | |
| 7345 return (0); | |
| 7346 case CMD_CMPLT: | |
| 7347 switch (SCBP_C(pkt)) { | |
| 7348 case STATUS_GOOD: | |
| 7349 break; | |
| 7350 case STATUS_CHECK: | |
| 7351 if (pkt->pkt_state & STATE_ARQ_DONE) { | |
| 7352 sns = &((( | |
| 7353 struct scsi_arq_status *) | |
| 7354 (uintptr_t) | |
| 7355 (pkt->pkt_scbp))-> | |
| 7356 sts_sensedata); | |
| 7357 if ((sns->es_key == | |
| 7358 KEY_UNIT_ATTENTION) || | |
| 7359 (sns->es_key == | |
| 7360 KEY_NOT_READY)) { | |
| 7361 /* | |
| 7362 * clear unit attn. | |
| 7363 */ | |
| 7364 | |
| 7365 VHCI_DEBUG(1, | |
| 7366 (CE_WARN, NULL, | |
| 7367 "!v_s_do_s_c: " | |
| 7368 "retry " | |
| 7369 "packet 0x%p sense " | |
| 7370 "data %s", | |
| 7371 (void *)pkt, | |
| 7372 scsi_sname | |
| 7373 (sns->es_key))); | |
| 7374 goto retry; | |
| 7375 } | |
| 7376 VHCI_DEBUG(4, (CE_WARN, NULL, | |
| 7377 "!ARQ while " | |
| 7378 "transporting " | |
| 7379 "(pkt 0x%p)", | |
| 7380 (void *)pkt)); | |
| 7381 return (0); | |
| 7382 } | |
| 7383 return (0); | |
| 7384 default: | |
| 7385 VHCI_DEBUG(1, (CE_WARN, NULL, | |
| 7386 "!Bad status returned " | |
| 7387 "(pkt 0x%p, status %x)", | |
| 7388 (void *)pkt, SCBP_C(pkt))); | |
| 7389 return (0); | |
| 7390 } | |
| 7391 break; | |
| 7392 case CMD_INCOMPLETE: | |
| 7393 case CMD_RESET: | |
| 7394 case CMD_ABORTED: | |
| 7395 case CMD_TRAN_ERR: | |
| 7396 if (retry_cnt++ < 1) { | |
| 7397 VHCI_DEBUG(1, (CE_WARN, NULL, | |
| 7398 "!v_s_do_s_c: retry packet 0x%p %s", | |
| 7399 (void *)pkt, scsi_rname(pkt->pkt_reason))); | |
| 7400 goto retry; | |
| 7401 } | |
| 7402 /* FALLTHROUGH */ | |
| 7403 default: | |
| 7404 VHCI_DEBUG(1, (CE_WARN, NULL, "!pkt did not " | |
| 7405 "complete successfully (pkt 0x%p," | |
| 7406 "reason %x)", (void *)pkt, pkt->pkt_reason)); | |
| 7407 return (0); | |
| 7408 } | |
| 7409 return (1); | |
| 7410 } | |
| 7411 | |
| 7412 static int | |
| 7413 vhci_quiesce_lun(struct scsi_vhci_lun *vlun) | |
| 7414 { | |
| 7415 mdi_pathinfo_t *pip, *spip; | |
| 7416 dev_info_t *cdip; | |
| 7417 struct scsi_vhci_priv *svp; | |
| 7418 mdi_pathinfo_state_t pstate; | |
| 7419 uint32_t p_ext_state; | |
| 7420 int circular; | |
| 7421 | |
| 7422 cdip = vlun->svl_dip; | |
| 7423 pip = spip = NULL; | |
| 7424 ndi_devi_enter(cdip, &circular); | |
| 7425 pip = mdi_get_next_phci_path(cdip, NULL); | |
| 7426 while (pip != NULL) { | |
| 7427 (void) mdi_pi_get_state2(pip, &pstate, &p_ext_state); | |
| 7428 if (pstate != MDI_PATHINFO_STATE_ONLINE) { | |
| 7429 spip = pip; | |
| 7430 pip = mdi_get_next_phci_path(cdip, spip); | |
| 7431 continue; | |
| 7432 } | |
| 7433 mdi_hold_path(pip); | |
| 7434 ndi_devi_exit(cdip, circular); | |
| 7435 svp = (scsi_vhci_priv_t *)mdi_pi_get_vhci_private(pip); | |
| 7436 mutex_enter(&svp->svp_mutex); | |
| 7437 while (svp->svp_cmds != 0) { | |
| 7438 if (cv_timedwait(&svp->svp_cv, &svp->svp_mutex, | |
| 7439 ddi_get_lbolt() + drv_usectohz | |
| 7440 (vhci_path_quiesce_timeout * 1000000)) == -1) { | |
| 7441 mutex_exit(&svp->svp_mutex); | |
| 7442 mdi_rele_path(pip); | |
| 7443 VHCI_DEBUG(1, (CE_WARN, NULL, | |
| 7444 "Quiesce of lun is not successful " | |
| 7445 "vlun: 0x%p.", (void *)vlun)); | |
| 7446 return (0); | |
| 7447 } | |
| 7448 } | |
| 7449 mutex_exit(&svp->svp_mutex); | |
| 7450 ndi_devi_enter(cdip, &circular); | |
| 7451 spip = pip; | |
| 7452 pip = mdi_get_next_phci_path(cdip, spip); | |
| 7453 mdi_rele_path(spip); | |
| 7454 } | |
| 7455 ndi_devi_exit(cdip, circular); | |
| 7456 return (1); | |
| 7457 } | |
| 7458 | |
| 7459 static int | |
| 7460 vhci_pgr_validate_and_register(scsi_vhci_priv_t *svp) | |
| 7461 { | |
| 7462 scsi_vhci_lun_t *vlun; | |
| 7463 vhci_prout_t *prout; | |
| 7464 int rval, success; | |
| 7465 mdi_pathinfo_t *pip, *npip; | |
| 7466 scsi_vhci_priv_t *osvp; | |
| 7467 dev_info_t *cdip; | |
| 7468 uchar_t cdb_1; | |
| 7469 uchar_t temp_res_key[MHIOC_RESV_KEY_SIZE]; | |
| 7470 | |
| 7471 | |
| 7472 /* | |
| 7473 * see if there are any other paths available; if none, | |
| 7474 * then there is nothing to do. | |
| 7475 */ | |
| 7476 cdip = svp->svp_svl->svl_dip; | |
| 7477 rval = mdi_select_path(cdip, NULL, MDI_SELECT_ONLINE_PATH | | |
| 7478 MDI_SELECT_STANDBY_PATH, NULL, &pip); | |
| 7479 if ((rval != MDI_SUCCESS) || (pip == NULL)) { | |
| 7480 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
| 7481 "%s%d: vhci_pgr_validate_and_register: first path\n", | |
| 7482 ddi_driver_name(cdip), ddi_get_instance(cdip))); | |
| 7483 return (1); | |
| 7484 } | |
| 7485 | |
| 7486 vlun = svp->svp_svl; | |
| 7487 prout = &vlun->svl_prout; | |
| 7488 ASSERT(vlun->svl_pgr_active != 0); | |
| 7489 | |
| 7490 /* | |
| 7491 * When the path was busy/offlined, some other host might have | |
| 7492 * cleared this key. Validate key on some other path first. | |
| 7493 * If it fails, return failure. | |
| 7494 */ | |
| 7495 | |
| 7496 npip = pip; | |
| 7497 pip = NULL; | |
| 7498 success = 0; | |
| 7499 | |
| 7500 /* Save the res key */ | |
|
6941
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
rralphs
parents:
6777
diff
changeset
|
7501 bcopy(prout->res_key, temp_res_key, MHIOC_RESV_KEY_SIZE); |
| 4851 | 7502 |
| 7503 /* | |
| 7504 * Sometimes CDB from application can be a Register_And_Ignore. | |
| 7505 * Instead of validation, this cdb would result in force registration. | |
| 7506 * Convert it to normal cdb for validation. | |
| 7507 * After that be sure to restore the cdb. | |
| 7508 */ | |
| 7509 cdb_1 = vlun->svl_cdb[1]; | |
| 7510 vlun->svl_cdb[1] &= 0xe0; | |
| 7511 | |
| 7512 do { | |
|
6941
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
rralphs
parents:
6777
diff
changeset
|
7513 osvp = (scsi_vhci_priv_t *)mdi_pi_get_vhci_private(npip); |
| 4851 | 7514 if (osvp == NULL) { |
| 7515 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
| 7516 "vhci_pgr_validate_and_register: no " | |
| 7517 "client priv! 0x%p offlined?\n", | |
| 7518 (void *)npip)); | |
| 7519 goto next_path_1; | |
| 7520 } | |
| 7521 | |
| 7522 if (osvp == svp) { | |
| 7523 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
| 7524 "vhci_pgr_validate_and_register: same svp 0x%p" | |
| 7525 " npip 0x%p vlun 0x%p\n", | |
| 7526 (void *)svp, (void *)npip, (void *)vlun)); | |
| 7527 goto next_path_1; | |
| 7528 } | |
| 7529 | |
| 7530 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
| 7531 "vhci_pgr_validate_and_register: First validate on" | |
| 7532 " osvp 0x%p being done. vlun 0x%p thread 0x%p Before bcopy" | |
| 7533 " cdb1 %x\n", (void *)osvp, (void *)vlun, | |
| 7534 (void *)curthread, vlun->svl_cdb[1])); | |
| 7535 vhci_print_prout_keys(vlun, "v_pgr_val_reg: before bcopy:"); | |
| 7536 | |
|
6941
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
rralphs
parents:
6777
diff
changeset
|
7537 bcopy(prout->service_key, prout->res_key, MHIOC_RESV_KEY_SIZE); |
| 4851 | 7538 |
| 7539 VHCI_DEBUG(4, (CE_WARN, NULL, "vlun 0x%p After bcopy", | |
| 7540 (void *)vlun)); | |
| 7541 vhci_print_prout_keys(vlun, "v_pgr_val_reg: after bcopy: "); | |
| 7542 | |
| 7543 rval = vhci_do_prout(osvp); | |
| 7544 if (rval == 1) { | |
| 7545 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
| 7546 "%s%d: vhci_pgr_validate_and_register: key" | |
| 7547 " validated thread 0x%p\n", ddi_driver_name(cdip), | |
| 7548 ddi_get_instance(cdip), (void *)curthread)); | |
| 7549 pip = npip; | |
| 7550 success = 1; | |
| 7551 break; | |
| 7552 } else { | |
| 7553 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
| 7554 "vhci_pgr_validate_and_register: First validation" | |
| 7555 " on osvp 0x%p failed %x\n", (void *)osvp, rval)); | |
| 7556 vhci_print_prout_keys(vlun, "v_pgr_val_reg: failed:"); | |
| 7557 } | |
| 7558 | |
| 7559 /* | |
| 7560 * Try other paths | |
| 7561 */ | |
| 7562 next_path_1: | |
| 7563 pip = npip; | |
| 7564 rval = mdi_select_path(cdip, NULL, | |
| 7565 MDI_SELECT_ONLINE_PATH|MDI_SELECT_STANDBY_PATH, | |
| 7566 pip, &npip); | |
| 7567 mdi_rele_path(pip); | |
| 7568 } while ((rval == MDI_SUCCESS) && (npip != NULL)); | |
| 7569 | |
| 7570 | |
| 7571 /* Be sure to restore original cdb */ | |
| 7572 vlun->svl_cdb[1] = cdb_1; | |
| 7573 | |
| 7574 /* Restore the res_key */ | |
|
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|
7575 bcopy(temp_res_key, prout->res_key, MHIOC_RESV_KEY_SIZE); |
| 4851 | 7576 |
| 7577 /* | |
| 7578 * If key could not be registered on any path for the first time, | |
| 7579 * return success as online should still continue. | |
| 7580 */ | |
| 7581 if (success == 0) { | |
| 7582 return (1); | |
| 7583 } | |
| 7584 | |
| 7585 ASSERT(pip != NULL); | |
| 7586 | |
| 7587 /* | |
| 7588 * Force register on new path | |
| 7589 */ | |
| 7590 cdb_1 = vlun->svl_cdb[1]; /* store the cdb */ | |
| 7591 | |
| 7592 vlun->svl_cdb[1] &= 0xe0; | |
| 7593 vlun->svl_cdb[1] |= VHCI_PROUT_R_AND_IGNORE; | |
| 7594 | |
| 7595 vhci_print_prout_keys(vlun, "v_pgr_val_reg: keys before bcopy: "); | |
| 7596 | |
|
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|
7597 bcopy(prout->active_service_key, prout->service_key, |
|
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|
7598 MHIOC_RESV_KEY_SIZE); |
|
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|
7599 bcopy(prout->active_res_key, prout->res_key, MHIOC_RESV_KEY_SIZE); |
| 4851 | 7600 |
| 7601 vhci_print_prout_keys(vlun, "v_pgr_val_reg:keys after bcopy: "); | |
| 7602 | |
| 7603 rval = vhci_do_prout(svp); | |
| 7604 vlun->svl_cdb[1] = cdb_1; /* restore the cdb */ | |
| 7605 if (rval != 1) { | |
| 7606 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
| 7607 "vhci_pgr_validate_and_register: register on new" | |
| 7608 " path 0x%p svp 0x%p failed %x\n", | |
| 7609 (void *)pip, (void *)svp, rval)); | |
| 7610 vhci_print_prout_keys(vlun, "v_pgr_val_reg: reg failed: "); | |
| 7611 mdi_rele_path(pip); | |
| 7612 return (0); | |
| 7613 } | |
| 7614 | |
| 7615 if (bcmp(prout->service_key, zero_key, MHIOC_RESV_KEY_SIZE) == 0) { | |
| 7616 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
| 7617 "vhci_pgr_validate_and_register: zero service key\n")); | |
| 7618 mdi_rele_path(pip); | |
| 7619 return (rval); | |
| 7620 } | |
| 7621 | |
| 7622 /* | |
| 7623 * While the key was force registered, some other host might have | |
| 7624 * cleared the key. Re-validate key on another pre-existing path | |
| 7625 * before declaring success. | |
| 7626 */ | |
| 7627 npip = pip; | |
| 7628 pip = NULL; | |
| 7629 | |
| 7630 /* | |
| 7631 * Sometimes CDB from application can be Register and Ignore. | |
| 7632 * Instead of validation, it would result in force registration. | |
| 7633 * Convert it to normal cdb for validation. | |
| 7634 * After that be sure to restore the cdb. | |
| 7635 */ | |
| 7636 cdb_1 = vlun->svl_cdb[1]; | |
| 7637 vlun->svl_cdb[1] &= 0xe0; | |
| 7638 success = 0; | |
| 7639 | |
| 7640 do { | |
| 7641 osvp = (scsi_vhci_priv_t *) | |
| 7642 mdi_pi_get_vhci_private(npip); | |
| 7643 if (osvp == NULL) { | |
| 7644 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
| 7645 "vhci_pgr_validate_and_register: no " | |
| 7646 "client priv! 0x%p offlined?\n", | |
| 7647 (void *)npip)); | |
| 7648 goto next_path_2; | |
| 7649 } | |
| 7650 | |
| 7651 if (osvp == svp) { | |
| 7652 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
| 7653 "vhci_pgr_validate_and_register: same osvp 0x%p" | |
| 7654 " npip 0x%p vlun 0x%p\n", | |
| 7655 (void *)svp, (void *)npip, (void *)vlun)); | |
| 7656 goto next_path_2; | |
| 7657 } | |
| 7658 | |
| 7659 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
| 7660 "vhci_pgr_validate_and_register: Re-validation on" | |
| 7661 " osvp 0x%p being done. vlun 0x%p Before bcopy cdb1 %x\n", | |
| 7662 (void *)osvp, (void *)vlun, vlun->svl_cdb[1])); | |
| 7663 vhci_print_prout_keys(vlun, "v_pgr_val_reg: before bcopy: "); | |
| 7664 | |
|
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|
7665 bcopy(prout->service_key, prout->res_key, MHIOC_RESV_KEY_SIZE); |
| 4851 | 7666 |
| 7667 vhci_print_prout_keys(vlun, "v_pgr_val_reg: after bcopy: "); | |
| 7668 | |
| 7669 rval = vhci_do_prout(osvp); | |
| 7670 if (rval == 1) { | |
| 7671 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
| 7672 "%s%d: vhci_pgr_validate_and_register: key" | |
| 7673 " validated thread 0x%p\n", ddi_driver_name(cdip), | |
| 7674 ddi_get_instance(cdip), (void *)curthread)); | |
| 7675 pip = npip; | |
| 7676 success = 1; | |
| 7677 break; | |
| 7678 } else { | |
| 7679 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
| 7680 "vhci_pgr_validate_and_register: Re-validation on" | |
| 7681 " osvp 0x%p failed %x\n", (void *)osvp, rval)); | |
| 7682 vhci_print_prout_keys(vlun, | |
| 7683 "v_pgr_val_reg: reval failed: "); | |
| 7684 } | |
| 7685 | |
| 7686 /* | |
| 7687 * Try other paths | |
| 7688 */ | |
| 7689 next_path_2: | |
| 7690 pip = npip; | |
| 7691 rval = mdi_select_path(cdip, NULL, | |
| 7692 MDI_SELECT_ONLINE_PATH|MDI_SELECT_STANDBY_PATH, | |
| 7693 pip, &npip); | |
| 7694 mdi_rele_path(pip); | |
| 7695 } while ((rval == MDI_SUCCESS) && (npip != NULL)); | |
| 7696 | |
| 7697 /* Be sure to restore original cdb */ | |
| 7698 vlun->svl_cdb[1] = cdb_1; | |
| 7699 | |
| 7700 if (success == 1) { | |
| 7701 /* Successfully validated registration */ | |
| 7702 mdi_rele_path(pip); | |
| 7703 return (1); | |
| 7704 } | |
| 7705 | |
| 7706 VHCI_DEBUG(4, (CE_WARN, NULL, "key validation failed")); | |
| 7707 | |
| 7708 /* | |
| 7709 * key invalid, back out by registering key value of 0 | |
| 7710 */ | |
| 7711 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
| 7712 "vhci_pgr_validate_and_register: backout on" | |
| 7713 " svp 0x%p being done\n", (void *)svp)); | |
| 7714 vhci_print_prout_keys(vlun, "v_pgr_val_reg: before bcopy: "); | |
| 7715 | |
|
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|
7716 bcopy(prout->service_key, prout->res_key, MHIOC_RESV_KEY_SIZE); |
|
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|
7717 bzero(prout->service_key, MHIOC_RESV_KEY_SIZE); |
| 4851 | 7718 |
| 7719 vhci_print_prout_keys(vlun, "v_pgr_val_reg: before bcopy: "); | |
| 7720 | |
| 7721 /* | |
| 7722 * Get a new path | |
| 7723 */ | |
| 7724 rval = mdi_select_path(cdip, NULL, MDI_SELECT_ONLINE_PATH | | |
| 7725 MDI_SELECT_STANDBY_PATH, NULL, &pip); | |
| 7726 if ((rval != MDI_SUCCESS) || (pip == NULL)) { | |
| 7727 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
| 7728 "%s%d: vhci_pgr_validate_and_register: no valid pip\n", | |
| 7729 ddi_driver_name(cdip), ddi_get_instance(cdip))); | |
| 7730 return (0); | |
| 7731 } | |
| 7732 | |
| 7733 if ((rval = vhci_do_prout(svp)) != 1) { | |
| 7734 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
| 7735 "vhci_pgr_validate_and_register: backout on" | |
| 7736 " svp 0x%p failed\n", (void *)svp)); | |
| 7737 vhci_print_prout_keys(vlun, "backout failed"); | |
| 7738 | |
| 7739 VHCI_DEBUG(4, (CE_WARN, NULL, | |
| 7740 "%s%d: vhci_pgr_validate_and_register: key" | |
| 7741 " validation and backout failed", ddi_driver_name(cdip), | |
| 7742 ddi_get_instance(cdip))); | |
| 7743 if (rval == VHCI_PGR_ILLEGALOP) { | |
| 7744 VHCI_DEBUG(4, (CE_WARN, NULL, | |
| 7745 "%s%d: vhci_pgr_validate_and_register: key" | |
| 7746 " already cleared", ddi_driver_name(cdip), | |
| 7747 ddi_get_instance(cdip))); | |
| 7748 rval = 1; | |
| 7749 } else | |
| 7750 rval = 0; | |
| 7751 } else { | |
| 7752 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
| 7753 "%s%d: vhci_pgr_validate_and_register: key" | |
| 7754 " validation failed, key backed out\n", | |
| 7755 ddi_driver_name(cdip), ddi_get_instance(cdip))); | |
| 7756 vhci_print_prout_keys(vlun, "v_pgr_val_reg: key backed out: "); | |
| 7757 } | |
| 7758 mdi_rele_path(pip); | |
| 7759 | |
| 7760 return (rval); | |
| 7761 } | |
| 7762 | |
| 7763 /* | |
| 7764 * taskq routine to dispatch a scsi cmd to vhci_scsi_start. This ensures | |
| 7765 * that vhci_scsi_start is not called in interrupt context. | |
| 7766 * As the upper layer gets TRAN_ACCEPT when the command is dispatched, we | |
| 7767 * need to complete the command if something goes wrong. | |
| 7768 */ | |
| 7769 static void | |
| 7770 vhci_dispatch_scsi_start(void *arg) | |
| 7771 { | |
|
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|
7772 struct vhci_pkt *vpkt = (struct vhci_pkt *)arg; |
|
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|
7773 struct scsi_pkt *tpkt = vpkt->vpkt_tgt_pkt; |
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|
7774 int rval = TRAN_BUSY; |
| 4851 | 7775 |
| 7776 VHCI_DEBUG(6, (CE_NOTE, NULL, "!vhci_dispatch_scsi_start: sending" | |
| 7777 " scsi-2 reserve for 0x%p\n", | |
| 7778 (void *)ADDR2DIP(&(vpkt->vpkt_tgt_pkt->pkt_address)))); | |
| 7779 | |
| 7780 /* | |
| 7781 * To prevent the taskq from being called recursively we set the | |
| 7782 * the VHCI_PKT_THRU_TASKQ bit in the vhci_pkt_states. | |
| 7783 */ | |
| 7784 vpkt->vpkt_state |= VHCI_PKT_THRU_TASKQ; | |
| 7785 | |
| 7786 /* | |
| 7787 * Wait for the transport to get ready to send packets | |
| 7788 * and if it times out, it will return something other than | |
| 7789 * TRAN_BUSY. The vhci_reserve_delay may want to | |
| 7790 * get tuned for other transports and is therefore a global. | |
| 7791 * Using delay since this routine is called by taskq dispatch | |
| 7792 * and not called during interrupt context. | |
| 7793 */ | |
| 7794 while ((rval = vhci_scsi_start(&(vpkt->vpkt_tgt_pkt->pkt_address), | |
| 7795 vpkt->vpkt_tgt_pkt)) == TRAN_BUSY) { | |
| 7796 delay(drv_usectohz(vhci_reserve_delay)); | |
| 7797 } | |
| 7798 | |
| 7799 switch (rval) { | |
| 7800 case TRAN_ACCEPT: | |
| 7801 return; | |
| 7802 | |
| 7803 default: | |
| 7804 /* | |
| 7805 * This pkt shall be retried, and to ensure another taskq | |
| 7806 * is dispatched for it, clear the VHCI_PKT_THRU_TASKQ | |
| 7807 * flag. | |
| 7808 */ | |
| 7809 vpkt->vpkt_state &= ~VHCI_PKT_THRU_TASKQ; | |
| 7810 | |
| 7811 /* Ensure that the pkt is retried without a reset */ | |
| 7812 tpkt->pkt_reason = CMD_ABORTED; | |
| 7813 tpkt->pkt_statistics |= STAT_ABORTED; | |
| 7814 VHCI_DEBUG(1, (CE_WARN, NULL, "!vhci_dispatch_scsi_start: " | |
| 7815 "TRAN_rval %d returned for dip 0x%p", rval, | |
| 7816 (void *)ADDR2DIP(&(vpkt->vpkt_tgt_pkt->pkt_address)))); | |
| 7817 break; | |
| 7818 } | |
| 7819 | |
| 7820 /* | |
| 7821 * vpkt_org_vpkt should always be NULL here if the retry command | |
| 7822 * has been successfully dispatched. If vpkt_org_vpkt != NULL at | |
| 7823 * this point, it is an error so restore the original vpkt and | |
| 7824 * return an error to the target driver so it can retry the | |
| 7825 * command as appropriate. | |
| 7826 */ | |
| 7827 if (vpkt->vpkt_org_vpkt != NULL) { | |
| 7828 struct vhci_pkt *new_vpkt = vpkt; | |
| 7829 scsi_vhci_priv_t *svp = (scsi_vhci_priv_t *) | |
| 7830 mdi_pi_get_vhci_private(vpkt->vpkt_path); | |
| 7831 | |
| 7832 vpkt = vpkt->vpkt_org_vpkt; | |
| 7833 | |
| 7834 vpkt->vpkt_tgt_pkt->pkt_reason = tpkt->pkt_reason; | |
| 7835 vpkt->vpkt_tgt_pkt->pkt_statistics = tpkt->pkt_statistics; | |
| 7836 | |
| 7837 vhci_scsi_destroy_pkt(&svp->svp_psd->sd_address, | |
| 7838 new_vpkt->vpkt_tgt_pkt); | |
| 7839 | |
| 7840 tpkt = vpkt->vpkt_tgt_pkt; | |
| 7841 } | |
| 7842 | |
| 7843 if (tpkt->pkt_comp) { | |
|
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|
7844 tpkt->pkt_comp(tpkt); |
| 4851 | 7845 } |
| 7846 } | |
| 7847 | |
| 7848 static void | |
| 7849 vhci_initiate_auto_failback(void *arg) | |
| 7850 { | |
| 7851 struct scsi_vhci_lun *vlun = (struct scsi_vhci_lun *)arg; | |
| 7852 dev_info_t *vdip, *cdip; | |
| 7853 int held; | |
| 7854 | |
| 7855 cdip = vlun->svl_dip; | |
| 7856 vdip = ddi_get_parent(cdip); | |
| 7857 | |
| 7858 VHCI_HOLD_LUN(vlun, VH_SLEEP, held); | |
| 7859 | |
| 7860 /* | |
| 7861 * Perform a final check to see if the active path class is indeed | |
| 7862 * not the prefered path class. As in the time the auto failback | |
| 7863 * was dispatched, an external failover could have been detected. | |
| 7864 * [Some other host could have detected this condition and triggered | |
| 7865 * the auto failback before]. | |
| 7866 * In such a case if we go ahead with failover we will be negating the | |
| 7867 * whole purpose of auto failback. | |
| 7868 */ | |
| 7869 mutex_enter(&vlun->svl_mutex); | |
| 7870 if (vlun->svl_active_pclass != NULL) { | |
| 7871 char *best_pclass; | |
| 7872 struct scsi_failover_ops *fo; | |
| 7873 | |
| 7874 fo = vlun->svl_fops; | |
| 7875 | |
|
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|
7876 (void) fo->sfo_pathclass_next(NULL, &best_pclass, |
| 4851 | 7877 vlun->svl_fops_ctpriv); |
| 7878 if (strcmp(vlun->svl_active_pclass, best_pclass) == 0) { | |
| 7879 mutex_exit(&vlun->svl_mutex); | |
| 7880 VHCI_RELEASE_LUN(vlun); | |
| 7881 VHCI_DEBUG(1, (CE_NOTE, NULL, "Not initiating " | |
| 7882 "auto failback for %s as %s pathclass already " | |
| 7883 "active.\n", vlun->svl_lun_wwn, best_pclass)); | |
| 7884 return; | |
| 7885 } | |
| 7886 } | |
| 7887 mutex_exit(&vlun->svl_mutex); | |
| 7888 if (mdi_failover(vdip, vlun->svl_dip, MDI_FAILOVER_SYNC) | |
| 7889 == MDI_SUCCESS) { | |
| 7890 vhci_log(CE_NOTE, vdip, "!Auto failback operation " | |
| 7891 "succeeded for device %s (GUID %s)", | |
| 7892 ddi_node_name(cdip), vlun->svl_lun_wwn); | |
| 7893 } else { | |
| 7894 vhci_log(CE_NOTE, vdip, "!Auto failback operation " | |
| 7895 "failed for device %s (GUID %s)", | |
| 7896 ddi_node_name(cdip), vlun->svl_lun_wwn); | |
| 7897 } | |
| 7898 VHCI_RELEASE_LUN(vlun); | |
| 7899 } | |
| 7900 | |
| 7901 #ifdef DEBUG | |
| 7902 static void | |
| 7903 vhci_print_prin_keys(vhci_prin_readkeys_t *prin, int numkeys) | |
| 7904 { | |
|
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|
7905 vhci_clean_print(NULL, 5, "Current PGR Keys", |
|
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|
7906 (uchar_t *)prin, numkeys * 8); |
| 4851 | 7907 } |
| 7908 #endif | |
| 7909 | |
| 7910 static void | |
| 7911 vhci_print_prout_keys(scsi_vhci_lun_t *vlun, char *msg) | |
| 7912 { | |
| 7913 int i; | |
| 7914 vhci_prout_t *prout; | |
| 7915 char buf1[4*MHIOC_RESV_KEY_SIZE + 1]; | |
| 7916 char buf2[4*MHIOC_RESV_KEY_SIZE + 1]; | |
| 7917 char buf3[4*MHIOC_RESV_KEY_SIZE + 1]; | |
| 7918 char buf4[4*MHIOC_RESV_KEY_SIZE + 1]; | |
| 7919 | |
| 7920 prout = &vlun->svl_prout; | |
| 7921 | |
| 7922 for (i = 0; i < MHIOC_RESV_KEY_SIZE; i++) | |
| 7923 (void) sprintf(&buf1[4*i], "[%02x]", prout->res_key[i]); | |
| 7924 for (i = 0; i < MHIOC_RESV_KEY_SIZE; i++) | |
| 7925 (void) sprintf(&buf2[(4*i)], "[%02x]", prout->service_key[i]); | |
| 7926 for (i = 0; i < MHIOC_RESV_KEY_SIZE; i++) | |
| 7927 (void) sprintf(&buf3[4*i], "[%02x]", prout->active_res_key[i]); | |
| 7928 for (i = 0; i < MHIOC_RESV_KEY_SIZE; i++) | |
| 7929 (void) sprintf(&buf4[4*i], "[%02x]", | |
| 7930 prout->active_service_key[i]); | |
| 7931 | |
| 7932 /* Printing all in one go. Otherwise it will jumble up */ | |
| 7933 VHCI_DEBUG(5, (CE_CONT, NULL, "%s vlun 0x%p, thread 0x%p\n" | |
| 7934 "res_key: : %s\n" | |
| 7935 "service_key : %s\n" | |
| 7936 "active_res_key : %s\n" | |
| 7937 "active_service_key: %s\n", | |
| 7938 msg, (void *)vlun, (void *)curthread, buf1, buf2, buf3, buf4)); | |
| 7939 } | |
| 7940 | |
| 7941 /* | |
| 7942 * Called from vhci_scsi_start to update the pHCI pkt with target packet. | |
| 7943 */ | |
| 7944 static void | |
| 7945 vhci_update_pHCI_pkt(struct vhci_pkt *vpkt, struct scsi_pkt *pkt) | |
| 7946 { | |
| 7947 | |
| 7948 ASSERT(vpkt->vpkt_hba_pkt); | |
| 7949 | |
| 7950 vpkt->vpkt_hba_pkt->pkt_flags = pkt->pkt_flags; | |
| 7951 vpkt->vpkt_hba_pkt->pkt_flags |= FLAG_NOQUEUE; | |
| 7952 | |
| 7953 if ((vpkt->vpkt_hba_pkt->pkt_flags & FLAG_NOINTR) || | |
| 7954 MDI_PI_IS_SUSPENDED(vpkt->vpkt_path)) { | |
| 7955 /* | |
| 7956 * Polled Command is requested or HBA is in | |
| 7957 * suspended state | |
| 7958 */ | |
| 7959 vpkt->vpkt_hba_pkt->pkt_flags |= FLAG_NOINTR; | |
| 7960 vpkt->vpkt_hba_pkt->pkt_comp = NULL; | |
| 7961 } else { | |
| 7962 vpkt->vpkt_hba_pkt->pkt_comp = vhci_intr; | |
| 7963 } | |
| 7964 vpkt->vpkt_hba_pkt->pkt_time = pkt->pkt_time; | |
| 7965 bcopy(pkt->pkt_cdbp, vpkt->vpkt_hba_pkt->pkt_cdbp, | |
| 7966 vpkt->vpkt_tgt_init_cdblen); | |
| 7967 vpkt->vpkt_hba_pkt->pkt_resid = pkt->pkt_resid; | |
| 7968 | |
| 7969 /* Re-initialize the following pHCI packet state information */ | |
| 7970 vpkt->vpkt_hba_pkt->pkt_state = 0; | |
| 7971 vpkt->vpkt_hba_pkt->pkt_statistics = 0; | |
| 7972 vpkt->vpkt_hba_pkt->pkt_reason = 0; | |
| 7973 } | |
| 7974 | |
| 7975 static int | |
| 7976 vhci_scsi_bus_power(dev_info_t *parent, void *impl_arg, pm_bus_power_op_t op, | |
| 7977 void *arg, void *result) | |
| 7978 { | |
| 7979 int ret = DDI_SUCCESS; | |
| 7980 | |
| 7981 /* | |
| 7982 * Generic processing in MPxIO framework | |
| 7983 */ | |
| 7984 ret = mdi_bus_power(parent, impl_arg, op, arg, result); | |
| 7985 | |
| 7986 switch (ret) { | |
| 7987 case MDI_SUCCESS: | |
| 7988 ret = DDI_SUCCESS; | |
| 7989 break; | |
| 7990 case MDI_FAILURE: | |
| 7991 ret = DDI_FAILURE; | |
| 7992 break; | |
| 7993 default: | |
| 7994 break; | |
| 7995 } | |
| 7996 | |
| 7997 return (ret); | |
| 7998 } | |
| 7999 | |
| 8000 static int | |
| 8001 vhci_pHCI_cap(struct scsi_address *ap, char *cap, int val, int whom, | |
| 8002 mdi_pathinfo_t *pip) | |
| 8003 { | |
| 8004 dev_info_t *cdip; | |
| 8005 mdi_pathinfo_t *npip = NULL; | |
| 8006 scsi_vhci_priv_t *svp = NULL; | |
| 8007 struct scsi_address *pap = NULL; | |
| 8008 scsi_hba_tran_t *hba = NULL; | |
| 8009 int sps; | |
| 8010 int mps_flag; | |
| 8011 int rval = 0; | |
| 8012 | |
| 8013 mps_flag = (MDI_SELECT_ONLINE_PATH | MDI_SELECT_STANDBY_PATH); | |
| 8014 if (pip) { | |
| 8015 /* | |
| 8016 * If the call is from vhci_pathinfo_state_change, | |
| 8017 * then this path was busy and is becoming ready to accept IO. | |
| 8018 */ | |
| 8019 ASSERT(ap != NULL); | |
| 8020 hba = ap->a_hba_tran; | |
| 8021 ASSERT(hba != NULL); | |
| 8022 rval = scsi_ifsetcap(ap, cap, val, whom); | |
| 8023 | |
| 8024 VHCI_DEBUG(2, (CE_NOTE, NULL, | |
| 8025 "!vhci_pHCI_cap: only on path %p, ap %p, rval %x\n", | |
| 8026 (void *)pip, (void *)ap, rval)); | |
| 8027 | |
| 8028 return (rval); | |
| 8029 } | |
| 8030 | |
| 8031 /* | |
| 8032 * Set capability on all the pHCIs. | |
| 8033 * If any path is busy, then the capability would be set by | |
| 8034 * vhci_pathinfo_state_change. | |
| 8035 */ | |
| 8036 | |
| 8037 cdip = ADDR2DIP(ap); | |
| 8038 ASSERT(cdip != NULL); | |
| 8039 sps = mdi_select_path(cdip, NULL, mps_flag, NULL, &pip); | |
| 8040 if ((sps != MDI_SUCCESS) || (pip == NULL)) { | |
| 8041 VHCI_DEBUG(2, (CE_WARN, NULL, | |
| 8042 "!vhci_pHCI_cap: Unable to get a path, dip 0x%p", | |
| 8043 (void *)cdip)); | |
| 8044 return (0); | |
| 8045 } | |
| 8046 | |
| 8047 again: | |
| 8048 svp = (scsi_vhci_priv_t *)mdi_pi_get_vhci_private(pip); | |
| 8049 if (svp == NULL) { | |
| 8050 VHCI_DEBUG(2, (CE_WARN, NULL, "!vhci_pHCI_cap: " | |
| 8051 "priv is NULL, pip 0x%p", (void *)pip)); | |
| 8052 mdi_rele_path(pip); | |
| 8053 return (rval); | |
| 8054 } | |
| 8055 | |
| 8056 if (svp->svp_psd == NULL) { | |
| 8057 VHCI_DEBUG(2, (CE_WARN, NULL, "!vhci_pHCI_cap: " | |
| 8058 "psd is NULL, pip 0x%p, svp 0x%p", | |
| 8059 (void *)pip, (void *)svp)); | |
| 8060 mdi_rele_path(pip); | |
| 8061 return (rval); | |
| 8062 } | |
| 8063 | |
| 8064 pap = &svp->svp_psd->sd_address; | |
| 8065 ASSERT(pap != NULL); | |
| 8066 hba = pap->a_hba_tran; | |
| 8067 ASSERT(hba != NULL); | |
| 8068 | |
| 8069 if (hba->tran_setcap != NULL) { | |
| 8070 rval = scsi_ifsetcap(pap, cap, val, whom); | |
| 8071 | |
| 8072 VHCI_DEBUG(2, (CE_NOTE, NULL, | |
| 8073 "!vhci_pHCI_cap: path %p, ap %p, rval %x\n", | |
| 8074 (void *)pip, (void *)ap, rval)); | |
| 8075 | |
| 8076 /* | |
| 8077 * Select next path and issue the setcap, repeat | |
| 8078 * until all paths are exhausted | |
| 8079 */ | |
| 8080 sps = mdi_select_path(cdip, NULL, mps_flag, pip, &npip); | |
| 8081 if ((sps != MDI_SUCCESS) || (npip == NULL)) { | |
| 8082 mdi_rele_path(pip); | |
| 8083 return (1); | |
| 8084 } | |
| 8085 mdi_rele_path(pip); | |
| 8086 pip = npip; | |
| 8087 goto again; | |
| 8088 } | |
| 8089 mdi_rele_path(pip); | |
| 8090 return (rval); | |
| 8091 } | |
| 8092 | |
| 8093 static int | |
| 8094 vhci_scsi_bus_config(dev_info_t *pdip, uint_t flags, ddi_bus_config_op_t op, | |
| 8095 void *arg, dev_info_t **child) | |
| 8096 { | |
| 8097 char *guid; | |
| 8098 | |
|
8335
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diff
changeset
|
8099 if (vhci_bus_config_debug) |
|
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|
8100 flags |= NDI_DEVI_DEBUG; |
|
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diff
changeset
|
8101 |
| 4851 | 8102 if (op == BUS_CONFIG_ONE || op == BUS_UNCONFIG_ONE) |
| 8103 guid = vhci_devnm_to_guid((char *)arg); | |
| 8104 else | |
| 8105 guid = NULL; | |
| 8106 | |
| 8107 if (mdi_vhci_bus_config(pdip, flags, op, arg, child, guid) | |
| 8108 == MDI_SUCCESS) | |
| 8109 return (NDI_SUCCESS); | |
| 8110 else | |
| 8111 return (NDI_FAILURE); | |
| 8112 } | |
| 8113 | |
|
8335
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diff
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|
8114 static int |
|
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parents:
7656
diff
changeset
|
8115 vhci_scsi_bus_unconfig(dev_info_t *pdip, uint_t flags, ddi_bus_config_op_t op, |
|
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parents:
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diff
changeset
|
8116 void *arg) |
|
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parents:
7656
diff
changeset
|
8117 { |
|
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parents:
7656
diff
changeset
|
8118 if (vhci_bus_config_debug) |
|
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diff
changeset
|
8119 flags |= NDI_DEVI_DEBUG; |
|
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parents:
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diff
changeset
|
8120 |
|
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Chris Horne <Chris.Horne@Sun.COM>
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diff
changeset
|
8121 return (ndi_busop_bus_unconfig(pdip, flags, op, arg)); |
|
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diff
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|
8122 } |
|
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diff
changeset
|
8123 |
| 4851 | 8124 /* |
| 8125 * Take the original vhci_pkt, create a duplicate of the pkt for resending | |
| 8126 * as though it originated in ssd. | |
| 8127 */ | |
| 8128 static struct scsi_pkt * | |
| 8129 vhci_create_retry_pkt(struct vhci_pkt *vpkt) | |
| 8130 { | |
| 8131 struct vhci_pkt *new_vpkt = NULL; | |
| 8132 struct scsi_pkt *pkt = NULL; | |
| 8133 | |
| 8134 scsi_vhci_priv_t *svp = (scsi_vhci_priv_t *) | |
| 8135 mdi_pi_get_vhci_private(vpkt->vpkt_path); | |
| 8136 | |
| 8137 /* | |
| 8138 * Ensure consistent data at completion time by setting PKT_CONSISTENT | |
| 8139 */ | |
| 8140 pkt = vhci_scsi_init_pkt(&svp->svp_psd->sd_address, pkt, | |
| 8141 vpkt->vpkt_tgt_init_bp, vpkt->vpkt_tgt_init_cdblen, | |
|
6941
c5d83acec1bc
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parents:
6777
diff
changeset
|
8142 vpkt->vpkt_tgt_init_scblen, 0, PKT_CONSISTENT, NULL_FUNC, NULL); |
| 4851 | 8143 if (pkt != NULL) { |
| 8144 new_vpkt = TGTPKT2VHCIPKT(pkt); | |
| 8145 | |
| 8146 pkt->pkt_address = vpkt->vpkt_tgt_pkt->pkt_address; | |
| 8147 pkt->pkt_flags = vpkt->vpkt_tgt_pkt->pkt_flags; | |
| 8148 pkt->pkt_time = vpkt->vpkt_tgt_pkt->pkt_time; | |
| 8149 pkt->pkt_comp = vpkt->vpkt_tgt_pkt->pkt_comp; | |
| 8150 | |
| 8151 pkt->pkt_resid = 0; | |
| 8152 pkt->pkt_statistics = 0; | |
| 8153 pkt->pkt_reason = 0; | |
| 8154 | |
| 8155 bcopy(vpkt->vpkt_tgt_pkt->pkt_cdbp, | |
| 8156 pkt->pkt_cdbp, vpkt->vpkt_tgt_init_cdblen); | |
| 8157 | |
| 8158 /* | |
| 8159 * Save a pointer to the original vhci_pkt | |
| 8160 */ | |
| 8161 new_vpkt->vpkt_org_vpkt = vpkt; | |
| 8162 } | |
| 8163 | |
| 8164 return (pkt); | |
| 8165 } | |
| 8166 | |
| 8167 /* | |
| 8168 * Copy the successful completion information from the hba packet into | |
| 8169 * the original target pkt from the upper layer. Returns the original | |
| 8170 * vpkt and destroys the new vpkt from the internal retry. | |
| 8171 */ | |
| 8172 static struct vhci_pkt * | |
| 8173 vhci_sync_retry_pkt(struct vhci_pkt *vpkt) | |
| 8174 { | |
| 8175 struct vhci_pkt *ret_vpkt = NULL; | |
| 8176 struct scsi_pkt *tpkt = NULL; | |
| 8177 struct scsi_pkt *hba_pkt = NULL; | |
| 8178 scsi_vhci_priv_t *svp = (scsi_vhci_priv_t *) | |
| 8179 mdi_pi_get_vhci_private(vpkt->vpkt_path); | |
| 8180 | |
| 8181 ASSERT(vpkt->vpkt_org_vpkt != NULL); | |
| 8182 VHCI_DEBUG(0, (CE_NOTE, NULL, "vhci_sync_retry_pkt: Retry pkt " | |
| 8183 "completed successfully!\n")); | |
| 8184 | |
| 8185 ret_vpkt = vpkt->vpkt_org_vpkt; | |
| 8186 tpkt = ret_vpkt->vpkt_tgt_pkt; | |
| 8187 hba_pkt = vpkt->vpkt_hba_pkt; | |
| 8188 | |
| 8189 /* | |
| 8190 * Copy the good status into the target driver's packet | |
| 8191 */ | |
| 8192 *(tpkt->pkt_scbp) = *(hba_pkt->pkt_scbp); | |
| 8193 tpkt->pkt_resid = hba_pkt->pkt_resid; | |
| 8194 tpkt->pkt_state = hba_pkt->pkt_state; | |
| 8195 tpkt->pkt_statistics = hba_pkt->pkt_statistics; | |
| 8196 tpkt->pkt_reason = hba_pkt->pkt_reason; | |
| 8197 | |
| 8198 /* | |
| 8199 * Destroy the internally created vpkt for the retry | |
| 8200 */ | |
| 8201 vhci_scsi_destroy_pkt(&svp->svp_psd->sd_address, | |
| 8202 vpkt->vpkt_tgt_pkt); | |
| 8203 | |
| 8204 return (ret_vpkt); | |
| 8205 } | |
| 8206 | |
| 8207 /* restart the request sense request */ | |
| 8208 static void | |
| 8209 vhci_uscsi_restart_sense(void *arg) | |
| 8210 { | |
| 8211 struct buf *rqbp; | |
| 8212 struct buf *bp; | |
| 8213 struct scsi_pkt *rqpkt = (struct scsi_pkt *)arg; | |
| 8214 mp_uscsi_cmd_t *mp_uscmdp; | |
| 8215 | |
| 8216 VHCI_DEBUG(4, (CE_WARN, NULL, | |
| 8217 "vhci_uscsi_restart_sense: enter: rqpkt: %p", (void *)rqpkt)); | |
| 8218 | |
| 8219 if (scsi_transport(rqpkt) != TRAN_ACCEPT) { | |
| 8220 /* if it fails - need to wakeup the original command */ | |
| 8221 mp_uscmdp = rqpkt->pkt_private; | |
| 8222 bp = mp_uscmdp->cmdbp; | |
| 8223 rqbp = mp_uscmdp->rqbp; | |
| 8224 ASSERT(mp_uscmdp && bp && rqbp); | |
| 8225 scsi_free_consistent_buf(rqbp); | |
| 8226 scsi_destroy_pkt(rqpkt); | |
| 8227 bp->b_resid = bp->b_bcount; | |
| 8228 bioerror(bp, EIO); | |
| 8229 biodone(bp); | |
| 8230 } | |
| 8231 } | |
| 8232 | |
| 8233 /* | |
| 8234 * auto-rqsense is not enabled so we have to retrieve the request sense | |
| 8235 * manually. | |
| 8236 */ | |
| 8237 static int | |
| 8238 vhci_uscsi_send_sense(struct scsi_pkt *pkt, mp_uscsi_cmd_t *mp_uscmdp) | |
| 8239 { | |
| 8240 struct buf *rqbp, *cmdbp; | |
| 8241 struct scsi_pkt *rqpkt; | |
| 8242 int rval = 0; | |
| 8243 | |
| 8244 cmdbp = mp_uscmdp->cmdbp; | |
| 8245 ASSERT(cmdbp != NULL); | |
| 8246 | |
| 8247 VHCI_DEBUG(4, (CE_WARN, NULL, | |
| 8248 "vhci_uscsi_send_sense: enter: bp: %p pkt: %p scmd: %p", | |
| 8249 (void *)cmdbp, (void *)pkt, (void *)mp_uscmdp)); | |
| 8250 /* set up the packet information and cdb */ | |
| 8251 if ((rqbp = scsi_alloc_consistent_buf(mp_uscmdp->ap, NULL, | |
| 8252 SENSE_LENGTH, B_READ, NULL, NULL)) == NULL) { | |
| 8253 return (-1); | |
| 8254 } | |
| 8255 | |
| 8256 if ((rqpkt = scsi_init_pkt(mp_uscmdp->ap, NULL, rqbp, | |
| 8257 CDB_GROUP0, 1, 0, PKT_CONSISTENT, NULL, NULL)) == NULL) { | |
| 8258 scsi_free_consistent_buf(rqbp); | |
| 8259 return (-1); | |
| 8260 } | |
| 8261 | |
| 8262 (void) scsi_setup_cdb((union scsi_cdb *)(intptr_t)rqpkt->pkt_cdbp, | |
| 8263 SCMD_REQUEST_SENSE, 0, SENSE_LENGTH, 0); | |
| 8264 | |
| 8265 mp_uscmdp->rqbp = rqbp; | |
| 8266 rqbp->b_private = mp_uscmdp; | |
| 8267 rqpkt->pkt_flags |= FLAG_SENSING; | |
| 8268 rqpkt->pkt_time = 60; | |
| 8269 rqpkt->pkt_comp = vhci_uscsi_iodone; | |
| 8270 rqpkt->pkt_private = mp_uscmdp; | |
| 8271 | |
|
6640
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6042
diff
changeset
|
8272 /* |
|
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6042
diff
changeset
|
8273 * NOTE: This code path is related to MPAPI uscsi(7I), so path |
|
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diff
changeset
|
8274 * selection is not based on path_instance. |
|
c92ca9b95b9c
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6042
diff
changeset
|
8275 */ |
|
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6042
diff
changeset
|
8276 if (scsi_pkt_allocated_correctly(rqpkt)) |
|
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6042
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changeset
|
8277 rqpkt->pkt_path_instance = 0; |
|
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6042
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changeset
|
8278 |
| 4851 | 8279 /* get her done */ |
| 8280 switch (scsi_transport(rqpkt)) { | |
| 8281 case TRAN_ACCEPT: | |
| 8282 VHCI_DEBUG(1, (CE_NOTE, NULL, "vhci_uscsi_send_sense: " | |
| 8283 "transport accepted.")); | |
| 8284 break; | |
| 8285 case TRAN_BUSY: | |
| 8286 VHCI_DEBUG(1, (CE_NOTE, NULL, "vhci_uscsi_send_sense: " | |
| 8287 "transport busy, setting timeout.")); | |
| 8288 vhci_restart_timeid = timeout(vhci_uscsi_restart_sense, rqpkt, | |
| 8289 (drv_usectohz(5 * 1000000))); | |
| 8290 break; | |
| 8291 default: | |
| 8292 VHCI_DEBUG(1, (CE_NOTE, NULL, "vhci_uscsi_send_sense: " | |
| 8293 "transport failed")); | |
| 8294 scsi_free_consistent_buf(rqbp); | |
| 8295 scsi_destroy_pkt(rqpkt); | |
| 8296 rval = -1; | |
| 8297 } | |
| 8298 | |
| 8299 return (rval); | |
| 8300 } | |
| 8301 | |
| 8302 /* | |
| 8303 * done routine for the mpapi uscsi command - this is behaving as though | |
| 8304 * FLAG_DIAGNOSE is set meaning there are no retries except for a manual | |
| 8305 * request sense. | |
| 8306 */ | |
| 8307 void | |
| 8308 vhci_uscsi_iodone(struct scsi_pkt *pkt) | |
| 8309 { | |
| 8310 struct buf *bp; | |
| 8311 mp_uscsi_cmd_t *mp_uscmdp; | |
| 8312 struct uscsi_cmd *uscmdp; | |
| 8313 struct scsi_arq_status *arqstat; | |
| 8314 int err; | |
| 8315 | |
| 8316 mp_uscmdp = (mp_uscsi_cmd_t *)pkt->pkt_private; | |
| 8317 uscmdp = mp_uscmdp->uscmdp; | |
| 8318 bp = mp_uscmdp->cmdbp; | |
| 8319 ASSERT(bp != NULL); | |
| 8320 VHCI_DEBUG(4, (CE_WARN, NULL, | |
| 8321 "vhci_uscsi_iodone: enter: bp: %p pkt: %p scmd: %p", | |
| 8322 (void *)bp, (void *)pkt, (void *)mp_uscmdp)); | |
| 8323 /* Save the status and the residual into the uscsi_cmd struct */ | |
| 8324 uscmdp->uscsi_status = ((*(pkt)->pkt_scbp) & STATUS_MASK); | |
| 8325 uscmdp->uscsi_resid = bp->b_resid; | |
| 8326 | |
| 8327 /* return on a very successful command */ | |
| 8328 if (pkt->pkt_reason == CMD_CMPLT && | |
| 8329 SCBP_C(pkt) == 0 && ((pkt->pkt_flags & FLAG_SENSING) == 0) && | |
| 8330 pkt->pkt_resid == 0) { | |
| 8331 mdi_pi_kstat_iosupdate(mp_uscmdp->pip, bp); | |
| 8332 scsi_destroy_pkt(pkt); | |
| 8333 biodone(bp); | |
| 8334 return; | |
| 8335 } | |
| 8336 VHCI_DEBUG(4, (CE_NOTE, NULL, "iodone: reason=0x%x " | |
| 8337 " pkt_resid=%ld pkt_state: 0x%x b_count: %ld b_resid: %ld", | |
| 8338 pkt->pkt_reason, pkt->pkt_resid, | |
| 8339 pkt->pkt_state, bp->b_bcount, bp->b_resid)); | |
| 8340 | |
| 8341 err = EIO; | |
| 8342 | |
| 8343 arqstat = (struct scsi_arq_status *)(intptr_t)(pkt->pkt_scbp); | |
| 8344 if (pkt->pkt_reason != CMD_CMPLT) { | |
| 8345 /* | |
| 8346 * The command did not complete. | |
| 8347 */ | |
| 8348 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
| 8349 "vhci_uscsi_iodone: command did not complete." | |
| 8350 " reason: %x flag: %x", pkt->pkt_reason, pkt->pkt_flags)); | |
| 8351 if (pkt->pkt_flags & FLAG_SENSING) { | |
| 8352 MDI_PI_ERRSTAT(mp_uscmdp->pip, MDI_PI_TRANSERR); | |
| 8353 } else if (pkt->pkt_reason == CMD_TIMEOUT) { | |
| 8354 MDI_PI_ERRSTAT(mp_uscmdp->pip, MDI_PI_HARDERR); | |
| 8355 err = ETIMEDOUT; | |
| 8356 } | |
| 8357 } else if (pkt->pkt_state & STATE_ARQ_DONE && mp_uscmdp->arq_enabled) { | |
| 8358 /* | |
| 8359 * The auto-rqsense happened, and the packet has a filled-in | |
| 8360 * scsi_arq_status structure, pointed to by pkt_scbp. | |
| 8361 */ | |
| 8362 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
| 8363 "vhci_uscsi_iodone: received auto-requested sense")); | |
| 8364 if (uscmdp->uscsi_flags & USCSI_RQENABLE) { | |
| 8365 /* get the amount of data to copy into rqbuf */ | |
| 8366 int rqlen = SENSE_LENGTH - arqstat->sts_rqpkt_resid; | |
| 8367 rqlen = min(((int)uscmdp->uscsi_rqlen), rqlen); | |
| 8368 uscmdp->uscsi_rqresid = uscmdp->uscsi_rqlen - rqlen; | |
| 8369 uscmdp->uscsi_rqstatus = | |
| 8370 *((char *)&arqstat->sts_rqpkt_status); | |
| 8371 if (uscmdp->uscsi_rqbuf && uscmdp->uscsi_rqlen && | |
| 8372 rqlen != 0) { | |
| 8373 bcopy(&(arqstat->sts_sensedata), | |
| 8374 uscmdp->uscsi_rqbuf, rqlen); | |
| 8375 } | |
| 8376 mdi_pi_kstat_iosupdate(mp_uscmdp->pip, bp); | |
| 8377 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
| 8378 "vhci_uscsi_iodone: ARQ " | |
| 8379 "uscsi_rqstatus=0x%x uscsi_rqresid=%d rqlen: %d " | |
| 8380 "xfer: %d rqpkt_resid: %d\n", | |
| 8381 uscmdp->uscsi_rqstatus, uscmdp->uscsi_rqresid, | |
| 8382 uscmdp->uscsi_rqlen, rqlen, | |
| 8383 arqstat->sts_rqpkt_resid)); | |
| 8384 } | |
| 8385 } else if (pkt->pkt_flags & FLAG_SENSING) { | |
| 8386 struct buf *rqbp; | |
| 8387 struct scsi_status *rqstatus; | |
| 8388 | |
| 8389 rqstatus = (struct scsi_status *)pkt->pkt_scbp; | |
| 8390 /* a manual request sense was done - get the information */ | |
| 8391 if (uscmdp->uscsi_flags & USCSI_RQENABLE) { | |
| 8392 int rqlen = SENSE_LENGTH - pkt->pkt_resid; | |
| 8393 | |
| 8394 rqbp = mp_uscmdp->rqbp; | |
| 8395 /* get the amount of data to copy into rqbuf */ | |
| 8396 rqlen = min(((int)uscmdp->uscsi_rqlen), rqlen); | |
| 8397 uscmdp->uscsi_rqresid = uscmdp->uscsi_rqlen - rqlen; | |
| 8398 uscmdp->uscsi_rqstatus = *((char *)rqstatus); | |
| 8399 if (uscmdp->uscsi_rqlen && uscmdp->uscsi_rqbuf) { | |
| 8400 bcopy(rqbp->b_un.b_addr, uscmdp->uscsi_rqbuf, | |
| 8401 rqlen); | |
| 8402 } | |
| 8403 MDI_PI_ERRSTAT(mp_uscmdp->pip, MDI_PI_TRANSERR); | |
| 8404 scsi_free_consistent_buf(rqbp); | |
| 8405 } | |
| 8406 VHCI_DEBUG(4, (CE_NOTE, NULL, "vhci_uscsi_iodone: FLAG_SENSING" | |
| 8407 "uscsi_rqstatus=0x%x uscsi_rqresid=%d\n", | |
| 8408 uscmdp->uscsi_rqstatus, uscmdp->uscsi_rqresid)); | |
| 8409 } else { | |
| 8410 struct scsi_status *status = | |
| 8411 (struct scsi_status *)pkt->pkt_scbp; | |
| 8412 /* | |
| 8413 * Command completed and we're not getting sense. Check for | |
| 8414 * errors and decide what to do next. | |
| 8415 */ | |
| 8416 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
| 8417 "vhci_uscsi_iodone: command appears complete: reason: %x", | |
| 8418 pkt->pkt_reason)); | |
| 8419 if (status->sts_chk) { | |
| 8420 /* need to manually get the request sense */ | |
| 8421 if (vhci_uscsi_send_sense(pkt, mp_uscmdp) == 0) { | |
| 8422 scsi_destroy_pkt(pkt); | |
| 8423 return; | |
| 8424 } | |
| 8425 } else { | |
| 8426 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
| 8427 "vhci_chk_err: appears complete")); | |
| 8428 err = 0; | |
| 8429 mdi_pi_kstat_iosupdate(mp_uscmdp->pip, bp); | |
| 8430 if (pkt->pkt_resid) { | |
| 8431 bp->b_resid += pkt->pkt_resid; | |
| 8432 } | |
| 8433 } | |
| 8434 } | |
| 8435 | |
| 8436 if (err) { | |
| 8437 if (bp->b_resid == 0) | |
| 8438 bp->b_resid = bp->b_bcount; | |
| 8439 bioerror(bp, err); | |
| 8440 bp->b_flags |= B_ERROR; | |
| 8441 } | |
| 8442 | |
| 8443 scsi_destroy_pkt(pkt); | |
| 8444 biodone(bp); | |
| 8445 | |
| 8446 VHCI_DEBUG(4, (CE_WARN, NULL, "vhci_uscsi_iodone: exit")); | |
| 8447 } | |
| 8448 | |
| 8449 /* | |
| 8450 * start routine for the mpapi uscsi command | |
| 8451 */ | |
| 8452 int | |
| 8453 vhci_uscsi_iostart(struct buf *bp) | |
| 8454 { | |
| 8455 struct scsi_pkt *pkt; | |
| 8456 struct uscsi_cmd *uscmdp; | |
| 8457 mp_uscsi_cmd_t *mp_uscmdp; | |
| 8458 int stat_size, rval; | |
| 8459 int retry = 0; | |
| 8460 | |
| 8461 ASSERT(bp->b_private != NULL); | |
| 8462 | |
| 8463 mp_uscmdp = (mp_uscsi_cmd_t *)bp->b_private; | |
| 8464 uscmdp = mp_uscmdp->uscmdp; | |
| 8465 if (uscmdp->uscsi_flags & USCSI_RQENABLE) { | |
| 8466 stat_size = SENSE_LENGTH; | |
| 8467 } else { | |
| 8468 stat_size = 1; | |
| 8469 } | |
| 8470 | |
| 8471 pkt = scsi_init_pkt(mp_uscmdp->ap, NULL, bp, uscmdp->uscsi_cdblen, | |
| 8472 stat_size, 0, 0, SLEEP_FUNC, NULL); | |
| 8473 if (pkt == NULL) { | |
| 8474 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
| 8475 "vhci_uscsi_iostart: rval: EINVAL")); | |
| 8476 bp->b_resid = bp->b_bcount; | |
| 8477 uscmdp->uscsi_resid = bp->b_bcount; | |
| 8478 bioerror(bp, EINVAL); | |
| 8479 biodone(bp); | |
| 8480 return (EINVAL); | |
| 8481 } | |
| 8482 | |
| 8483 pkt->pkt_time = uscmdp->uscsi_timeout; | |
| 8484 bcopy(uscmdp->uscsi_cdb, pkt->pkt_cdbp, (size_t)uscmdp->uscsi_cdblen); | |
| 8485 pkt->pkt_comp = vhci_uscsi_iodone; | |
| 8486 pkt->pkt_private = mp_uscmdp; | |
| 8487 if (uscmdp->uscsi_flags & USCSI_SILENT) | |
| 8488 pkt->pkt_flags |= FLAG_SILENT; | |
| 8489 if (uscmdp->uscsi_flags & USCSI_ISOLATE) | |
| 8490 pkt->pkt_flags |= FLAG_ISOLATE; | |
| 8491 if (uscmdp->uscsi_flags & USCSI_DIAGNOSE) | |
| 8492 pkt->pkt_flags |= FLAG_DIAGNOSE; | |
| 8493 if (uscmdp->uscsi_flags & USCSI_RENEGOT) { | |
| 8494 pkt->pkt_flags |= FLAG_RENEGOTIATE_WIDE_SYNC; | |
| 8495 } | |
| 8496 VHCI_DEBUG(4, (CE_WARN, NULL, | |
| 8497 "vhci_uscsi_iostart: ap: %p pkt: %p pcdbp: %p uscmdp: %p" | |
| 8498 " ucdbp: %p pcdblen: %d bp: %p count: %ld pip: %p" | |
| 8499 " stat_size: %d", | |
| 8500 (void *)mp_uscmdp->ap, (void *)pkt, (void *)pkt->pkt_cdbp, | |
| 8501 (void *)uscmdp, (void *)uscmdp->uscsi_cdb, pkt->pkt_cdblen, | |
| 8502 (void *)bp, bp->b_bcount, (void *)mp_uscmdp->pip, stat_size)); | |
| 8503 | |
|
6640
c92ca9b95b9c
PSARC/2007/522 Disk enumeration for Sun Fire X4200 and X4200 M2
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diff
changeset
|
8504 /* |
|
c92ca9b95b9c
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diff
changeset
|
8505 * NOTE: This code path is related to MPAPI uscsi(7I), so path |
|
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|
8506 * selection is not based on path_instance. |
|
c92ca9b95b9c
PSARC/2007/522 Disk enumeration for Sun Fire X4200 and X4200 M2
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changeset
|
8507 */ |
|
c92ca9b95b9c
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diff
changeset
|
8508 if (scsi_pkt_allocated_correctly(pkt)) |
|
c92ca9b95b9c
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|
8509 pkt->pkt_path_instance = 0; |
|
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|
8510 |
| 4851 | 8511 while (((rval = scsi_transport(pkt)) == TRAN_BUSY) && |
| 8512 retry < vhci_uscsi_retry_count) { | |
| 8513 delay(drv_usectohz(vhci_uscsi_delay)); | |
| 8514 retry++; | |
| 8515 } | |
| 8516 if (retry >= vhci_uscsi_retry_count) { | |
| 8517 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
| 8518 "vhci_uscsi_iostart: tran_busy - retry: %d", retry)); | |
| 8519 } | |
| 8520 switch (rval) { | |
| 8521 case TRAN_ACCEPT: | |
| 8522 rval = 0; | |
| 8523 break; | |
| 8524 | |
| 8525 default: | |
| 8526 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
| 8527 "vhci_uscsi_iostart: rval: %d count: %ld res: %ld", | |
| 8528 rval, bp->b_bcount, bp->b_resid)); | |
| 8529 bp->b_resid = bp->b_bcount; | |
| 8530 uscmdp->uscsi_resid = bp->b_bcount; | |
| 8531 bioerror(bp, EIO); | |
| 8532 scsi_destroy_pkt(pkt); | |
| 8533 biodone(bp); | |
| 8534 rval = EIO; | |
| 8535 MDI_PI_ERRSTAT(mp_uscmdp->pip, MDI_PI_TRANSERR); | |
| 8536 break; | |
| 8537 } | |
| 8538 VHCI_DEBUG(4, (CE_NOTE, NULL, | |
| 8539 "vhci_uscsi_iostart: exit: rval: %d", rval)); | |
| 8540 return (rval); | |
| 8541 } | |
|
6941
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6459247 scsi_vhci does not return correct value for dma-max property
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changeset
|
8542 |
|
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
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changeset
|
8543 #ifdef DEBUG |
|
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
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changeset
|
8544 |
|
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6459247 scsi_vhci does not return correct value for dma-max property
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changeset
|
8545 extern struct scsi_key_strings scsi_cmds[]; |
|
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6459247 scsi_vhci does not return correct value for dma-max property
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|
8546 |
|
c5d83acec1bc
6459247 scsi_vhci does not return correct value for dma-max property
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|
8547 static char * |
|
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6459247 scsi_vhci does not return correct value for dma-max property
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changeset
|
8548 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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changeset
|
8549 { |
|
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6459247 scsi_vhci does not return correct value for dma-max property
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changeset
|
8550 char tmp[64]; |
|
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6459247 scsi_vhci does not return correct value for dma-max property
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|
8551 char *cpnt; |
|
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6459247 scsi_vhci does not return correct value for dma-max property
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|
8552 |
|
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6459247 scsi_vhci does not return correct value for dma-max property
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changeset
|
8553 cpnt = scsi_cmd_name(cmd, scsi_cmds, tmp); |
|
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|
8554 /* tmp goes out of scope on return and caller sees garbage */ |
|
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|
8555 if (cpnt == tmp) { |
|
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6459247 scsi_vhci does not return correct value for dma-max property
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|
8556 cpnt = "Unknown Command"; |
|
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6459247 scsi_vhci does not return correct value for dma-max property
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|
8557 } |
|
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6459247 scsi_vhci does not return correct value for dma-max property
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changeset
|
8558 return (cpnt); |
|
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|
8559 } |
|
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changeset
|
8560 |
|
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6459247 scsi_vhci does not return correct value for dma-max property
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|
8561 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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|
8562 |
|
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changeset
|
8563 static void |
|
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6459247 scsi_vhci does not return correct value for dma-max property
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|
8564 vhci_print_cdb(dev_info_t *dip, uint_t level, char *title, uchar_t *cdb) |
|
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|
8565 { |
|
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6459247 scsi_vhci does not return correct value for dma-max property
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|
8566 int len = scsi_cdb_size[CDB_GROUPID(cdb[0])]; |
|
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|
8567 char buf[256]; |
|
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6459247 scsi_vhci does not return correct value for dma-max property
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|
8568 |
|
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|
8569 if (level == CE_NOTE) { |
|
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|
8570 vhci_log(level, dip, "path cmd %s\n", |
|
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|
8571 vhci_print_scsi_cmd(*cdb)); |
|
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|
8572 return; |
|
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6459247 scsi_vhci does not return correct value for dma-max property
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|
8573 } |
|
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changeset
|
8574 |
|
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changeset
|
8575 (void) sprintf(buf, "%s for cmd(%s)", title, vhci_print_scsi_cmd(*cdb)); |
|
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6459247 scsi_vhci does not return correct value for dma-max property
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changeset
|
8576 vhci_clean_print(dip, level, buf, cdb, len); |
|
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|
8577 } |
|
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changeset
|
8578 |
|
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changeset
|
8579 static void |
|
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|
8580 vhci_clean_print(dev_info_t *dev, uint_t level, char *title, uchar_t *data, |
|
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|
8581 int len) |
|
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|
8582 { |
|
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|
8583 int i; |
|
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|
8584 int c; |
|
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|
8585 char *format; |
|
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|
8586 char buf[256]; |
|
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|
8587 uchar_t byte; |
|
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|
8588 |
|
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changeset
|
8589 (void) sprintf(buf, "%s:\n", title); |
|
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6459247 scsi_vhci does not return correct value for dma-max property
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|
8590 vhci_log(level, dev, "%s", buf); |
|
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changeset
|
8591 level = CE_CONT; |
|
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|
8592 for (i = 0; i < len; ) { |
|
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|
8593 buf[0] = 0; |
|
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|
8594 for (c = 0; c < 8 && i < len; c++, i++) { |
|
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|
8595 byte = (uchar_t)data[i]; |
|
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6459247 scsi_vhci does not return correct value for dma-max property
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|
8596 if (byte < 0x10) |
|
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6459247 scsi_vhci does not return correct value for dma-max property
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changeset
|
8597 format = "0x0%x "; |
|
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6459247 scsi_vhci does not return correct value for dma-max property
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|
8598 else |
|
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changeset
|
8599 format = "0x%x "; |
|
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8600 (void) sprintf(&buf[(int)strlen(buf)], format, byte); |
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8601 } |
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8602 (void) sprintf(&buf[(int)strlen(buf)], "\n"); |
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8603 |
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8604 vhci_log(level, dev, "%s\n", buf); |
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8605 } |
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8606 } |
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8607 #endif |