1 /*- 2 * Copyright (c) 2001 Michael Smith 3 * Copyright (c) 2004 Paul Saab 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * $FreeBSD$ 28 */ 29 30 /* 31 * Common Interface for SCSI-3 Support driver. 32 * 33 * CISS claims to provide a common interface between a generic SCSI 34 * transport and an intelligent host adapter. 35 * 36 * This driver supports CISS as defined in the document "CISS Command 37 * Interface for SCSI-3 Support Open Specification", Version 1.04, 38 * Valence Number 1, dated 20001127, produced by Compaq Computer 39 * Corporation. This document appears to be a hastily and somewhat 40 * arbitrarlily cut-down version of a larger (and probably even more 41 * chaotic and inconsistent) Compaq internal document. Various 42 * details were also gleaned from Compaq's "cciss" driver for Linux. 43 * 44 * We provide a shim layer between the CISS interface and CAM, 45 * offloading most of the queueing and being-a-disk chores onto CAM. 46 * Entry to the driver is via the PCI bus attachment (ciss_probe, 47 * ciss_attach, etc) and via the CAM interface (ciss_cam_action, 48 * ciss_cam_poll). The Compaq CISS adapters are, however, poor SCSI 49 * citizens and we have to fake up some responses to get reasonable 50 * behaviour out of them. In addition, the CISS command set is by no 51 * means adequate to support the functionality of a RAID controller, 52 * and thus the supported Compaq adapters utilise portions of the 53 * control protocol from earlier Compaq adapter families. 54 * 55 * Note that we only support the "simple" transport layer over PCI. 56 * This interface (ab)uses the I2O register set (specifically the post 57 * queues) to exchange commands with the adapter. Other interfaces 58 * are available, but we aren't supposed to know about them, and it is 59 * dubious whether they would provide major performance improvements 60 * except under extreme load. 61 * 62 * Currently the only supported CISS adapters are the Compaq Smart 63 * Array 5* series (5300, 5i, 532). Even with only three adapters, 64 * Compaq still manage to have interface variations. 65 * 66 * 67 * Thanks must go to Fred Harris and Darryl DeVinney at Compaq, as 68 * well as Paul Saab at Yahoo! for their assistance in making this 69 * driver happen. 70 * 71 * More thanks must go to John Cagle at HP for the countless hours 72 * spent making this driver "work" with the MSA* series storage 73 * enclosures. Without his help (and nagging), this driver could not 74 * be used with these enclosures. 75 */ 76 77 #include <sys/param.h> 78 #include <sys/systm.h> 79 #include <sys/malloc.h> 80 #include <sys/kernel.h> 81 #include <sys/bus.h> 82 #include <sys/conf.h> 83 #include <sys/stat.h> 84 #include <sys/kthread.h> 85 #include <sys/queue.h> 86 #include <sys/sysctl.h> 87 88 #include <cam/cam.h> 89 #include <cam/cam_ccb.h> 90 #include <cam/cam_periph.h> 91 #include <cam/cam_sim.h> 92 #include <cam/cam_xpt_sim.h> 93 #include <cam/scsi/scsi_all.h> 94 #include <cam/scsi/scsi_message.h> 95 96 #include <machine/bus.h> 97 #include <machine/endian.h> 98 #include <machine/resource.h> 99 #include <sys/rman.h> 100 101 #include <dev/pci/pcireg.h> 102 #include <dev/pci/pcivar.h> 103 104 #include <dev/ciss/cissreg.h> 105 #include <dev/ciss/cissio.h> 106 #include <dev/ciss/cissvar.h> 107 108 static MALLOC_DEFINE(CISS_MALLOC_CLASS, "ciss_data", 109 "ciss internal data buffers"); 110 111 /* pci interface */ 112 static int ciss_lookup(device_t dev); 113 static int ciss_probe(device_t dev); 114 static int ciss_attach(device_t dev); 115 static int ciss_detach(device_t dev); 116 static int ciss_shutdown(device_t dev); 117 118 /* (de)initialisation functions, control wrappers */ 119 static int ciss_init_pci(struct ciss_softc *sc); 120 static int ciss_setup_msix(struct ciss_softc *sc); 121 static int ciss_init_perf(struct ciss_softc *sc); 122 static int ciss_wait_adapter(struct ciss_softc *sc); 123 static int ciss_flush_adapter(struct ciss_softc *sc); 124 static int ciss_init_requests(struct ciss_softc *sc); 125 static void ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, 126 int nseg, int error); 127 static int ciss_identify_adapter(struct ciss_softc *sc); 128 static int ciss_init_logical(struct ciss_softc *sc); 129 static int ciss_init_physical(struct ciss_softc *sc); 130 static int ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll); 131 static int ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld); 132 static int ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld); 133 static int ciss_update_config(struct ciss_softc *sc); 134 static int ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld); 135 static void ciss_init_sysctl(struct ciss_softc *sc); 136 static void ciss_soft_reset(struct ciss_softc *sc); 137 static void ciss_free(struct ciss_softc *sc); 138 static void ciss_spawn_notify_thread(struct ciss_softc *sc); 139 static void ciss_kill_notify_thread(struct ciss_softc *sc); 140 141 /* request submission/completion */ 142 static int ciss_start(struct ciss_request *cr); 143 static void ciss_done(struct ciss_softc *sc, cr_qhead_t *qh); 144 static void ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh); 145 static void ciss_intr(void *arg); 146 static void ciss_perf_intr(void *arg); 147 static void ciss_perf_msi_intr(void *arg); 148 static void ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh); 149 static int _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func); 150 static int ciss_synch_request(struct ciss_request *cr, int timeout); 151 static int ciss_poll_request(struct ciss_request *cr, int timeout); 152 static int ciss_wait_request(struct ciss_request *cr, int timeout); 153 #if 0 154 static int ciss_abort_request(struct ciss_request *cr); 155 #endif 156 157 /* request queueing */ 158 static int ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp); 159 static void ciss_preen_command(struct ciss_request *cr); 160 static void ciss_release_request(struct ciss_request *cr); 161 162 /* request helpers */ 163 static int ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 164 int opcode, void **bufp, size_t bufsize); 165 static int ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc); 166 167 /* DMA map/unmap */ 168 static int ciss_map_request(struct ciss_request *cr); 169 static void ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, 170 int nseg, int error); 171 static void ciss_unmap_request(struct ciss_request *cr); 172 173 /* CAM interface */ 174 static int ciss_cam_init(struct ciss_softc *sc); 175 static void ciss_cam_rescan_target(struct ciss_softc *sc, 176 int bus, int target); 177 static void ciss_cam_action(struct cam_sim *sim, union ccb *ccb); 178 static int ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio); 179 static int ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio); 180 static void ciss_cam_poll(struct cam_sim *sim); 181 static void ciss_cam_complete(struct ciss_request *cr); 182 static void ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio); 183 static int ciss_name_device(struct ciss_softc *sc, int bus, int target); 184 185 /* periodic status monitoring */ 186 static void ciss_periodic(void *arg); 187 static void ciss_nop_complete(struct ciss_request *cr); 188 static void ciss_disable_adapter(struct ciss_softc *sc); 189 static void ciss_notify_event(struct ciss_softc *sc); 190 static void ciss_notify_complete(struct ciss_request *cr); 191 static int ciss_notify_abort(struct ciss_softc *sc); 192 static int ciss_notify_abort_bmic(struct ciss_softc *sc); 193 static void ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn); 194 static void ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn); 195 static void ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn); 196 197 /* debugging output */ 198 static void ciss_print_request(struct ciss_request *cr); 199 static void ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld); 200 static const char *ciss_name_ldrive_status(int status); 201 static int ciss_decode_ldrive_status(int status); 202 static const char *ciss_name_ldrive_org(int org); 203 static const char *ciss_name_command_status(int status); 204 205 /* 206 * PCI bus interface. 207 */ 208 static device_method_t ciss_methods[] = { 209 /* Device interface */ 210 DEVMETHOD(device_probe, ciss_probe), 211 DEVMETHOD(device_attach, ciss_attach), 212 DEVMETHOD(device_detach, ciss_detach), 213 DEVMETHOD(device_shutdown, ciss_shutdown), 214 { 0, 0 } 215 }; 216 217 static driver_t ciss_pci_driver = { 218 "ciss", 219 ciss_methods, 220 sizeof(struct ciss_softc) 221 }; 222 223 static devclass_t ciss_devclass; 224 DRIVER_MODULE(ciss, pci, ciss_pci_driver, ciss_devclass, 0, 0); 225 MODULE_DEPEND(ciss, cam, 1, 1, 1); 226 MODULE_DEPEND(ciss, pci, 1, 1, 1); 227 228 /* 229 * Control device interface. 230 */ 231 static d_open_t ciss_open; 232 static d_close_t ciss_close; 233 static d_ioctl_t ciss_ioctl; 234 235 static struct cdevsw ciss_cdevsw = { 236 .d_version = D_VERSION, 237 .d_flags = 0, 238 .d_open = ciss_open, 239 .d_close = ciss_close, 240 .d_ioctl = ciss_ioctl, 241 .d_name = "ciss", 242 }; 243 244 /* 245 * This tunable can be set at boot time and controls whether physical devices 246 * that are marked hidden by the firmware should be exposed anyways. 247 */ 248 static unsigned int ciss_expose_hidden_physical = 0; 249 TUNABLE_INT("hw.ciss.expose_hidden_physical", &ciss_expose_hidden_physical); 250 251 static unsigned int ciss_nop_message_heartbeat = 0; 252 TUNABLE_INT("hw.ciss.nop_message_heartbeat", &ciss_nop_message_heartbeat); 253 254 /* 255 * This tunable can force a particular transport to be used: 256 * <= 0 : use default 257 * 1 : force simple 258 * 2 : force performant 259 */ 260 static int ciss_force_transport = 0; 261 TUNABLE_INT("hw.ciss.force_transport", &ciss_force_transport); 262 263 /* 264 * This tunable can force a particular interrupt delivery method to be used: 265 * <= 0 : use default 266 * 1 : force INTx 267 * 2 : force MSIX 268 */ 269 static int ciss_force_interrupt = 0; 270 TUNABLE_INT("hw.ciss.force_interrupt", &ciss_force_interrupt); 271 272 /************************************************************************ 273 * CISS adapters amazingly don't have a defined programming interface 274 * value. (One could say some very despairing things about PCI and 275 * people just not getting the general idea.) So we are forced to 276 * stick with matching against subvendor/subdevice, and thus have to 277 * be updated for every new CISS adapter that appears. 278 */ 279 #define CISS_BOARD_UNKNWON 0 280 #define CISS_BOARD_SA5 1 281 #define CISS_BOARD_SA5B 2 282 #define CISS_BOARD_NOMSI (1<<4) 283 #define CISS_BOARD_SIMPLE (1<<5) 284 285 static struct 286 { 287 u_int16_t subvendor; 288 u_int16_t subdevice; 289 int flags; 290 char *desc; 291 } ciss_vendor_data[] = { 292 { 0x0e11, 0x4070, CISS_BOARD_SA5|CISS_BOARD_NOMSI|CISS_BOARD_SIMPLE, 293 "Compaq Smart Array 5300" }, 294 { 0x0e11, 0x4080, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 5i" }, 295 { 0x0e11, 0x4082, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 532" }, 296 { 0x0e11, 0x4083, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "HP Smart Array 5312" }, 297 { 0x0e11, 0x4091, CISS_BOARD_SA5, "HP Smart Array 6i" }, 298 { 0x0e11, 0x409A, CISS_BOARD_SA5, "HP Smart Array 641" }, 299 { 0x0e11, 0x409B, CISS_BOARD_SA5, "HP Smart Array 642" }, 300 { 0x0e11, 0x409C, CISS_BOARD_SA5, "HP Smart Array 6400" }, 301 { 0x0e11, 0x409D, CISS_BOARD_SA5, "HP Smart Array 6400 EM" }, 302 { 0x103C, 0x3211, CISS_BOARD_SA5, "HP Smart Array E200i" }, 303 { 0x103C, 0x3212, CISS_BOARD_SA5, "HP Smart Array E200" }, 304 { 0x103C, 0x3213, CISS_BOARD_SA5, "HP Smart Array E200i" }, 305 { 0x103C, 0x3214, CISS_BOARD_SA5, "HP Smart Array E200i" }, 306 { 0x103C, 0x3215, CISS_BOARD_SA5, "HP Smart Array E200i" }, 307 { 0x103C, 0x3220, CISS_BOARD_SA5, "HP Smart Array" }, 308 { 0x103C, 0x3222, CISS_BOARD_SA5, "HP Smart Array" }, 309 { 0x103C, 0x3223, CISS_BOARD_SA5, "HP Smart Array P800" }, 310 { 0x103C, 0x3225, CISS_BOARD_SA5, "HP Smart Array P600" }, 311 { 0x103C, 0x3230, CISS_BOARD_SA5, "HP Smart Array" }, 312 { 0x103C, 0x3231, CISS_BOARD_SA5, "HP Smart Array" }, 313 { 0x103C, 0x3232, CISS_BOARD_SA5, "HP Smart Array" }, 314 { 0x103C, 0x3233, CISS_BOARD_SA5, "HP Smart Array" }, 315 { 0x103C, 0x3234, CISS_BOARD_SA5, "HP Smart Array P400" }, 316 { 0x103C, 0x3235, CISS_BOARD_SA5, "HP Smart Array P400i" }, 317 { 0x103C, 0x3236, CISS_BOARD_SA5, "HP Smart Array" }, 318 { 0x103C, 0x3237, CISS_BOARD_SA5, "HP Smart Array E500" }, 319 { 0x103C, 0x3238, CISS_BOARD_SA5, "HP Smart Array" }, 320 { 0x103C, 0x3239, CISS_BOARD_SA5, "HP Smart Array" }, 321 { 0x103C, 0x323A, CISS_BOARD_SA5, "HP Smart Array" }, 322 { 0x103C, 0x323B, CISS_BOARD_SA5, "HP Smart Array" }, 323 { 0x103C, 0x323C, CISS_BOARD_SA5, "HP Smart Array" }, 324 { 0x103C, 0x323D, CISS_BOARD_SA5, "HP Smart Array P700m" }, 325 { 0x103C, 0x3241, CISS_BOARD_SA5, "HP Smart Array P212" }, 326 { 0x103C, 0x3243, CISS_BOARD_SA5, "HP Smart Array P410" }, 327 { 0x103C, 0x3245, CISS_BOARD_SA5, "HP Smart Array P410i" }, 328 { 0x103C, 0x3247, CISS_BOARD_SA5, "HP Smart Array P411" }, 329 { 0x103C, 0x3249, CISS_BOARD_SA5, "HP Smart Array P812" }, 330 { 0x103C, 0x324A, CISS_BOARD_SA5, "HP Smart Array P712m" }, 331 { 0x103C, 0x324B, CISS_BOARD_SA5, "HP Smart Array" }, 332 { 0x103C, 0x3350, CISS_BOARD_SA5, "HP Smart Array P222" }, 333 { 0x103C, 0x3351, CISS_BOARD_SA5, "HP Smart Array P420" }, 334 { 0x103C, 0x3352, CISS_BOARD_SA5, "HP Smart Array P421" }, 335 { 0x103C, 0x3353, CISS_BOARD_SA5, "HP Smart Array P822" }, 336 { 0x103C, 0x3354, CISS_BOARD_SA5, "HP Smart Array P420i" }, 337 { 0x103C, 0x3355, CISS_BOARD_SA5, "HP Smart Array P220i" }, 338 { 0x103C, 0x3356, CISS_BOARD_SA5, "HP Smart Array P721m" }, 339 { 0x103C, 0x1920, CISS_BOARD_SA5, "HP Smart Array P430i" }, 340 { 0x103C, 0x1921, CISS_BOARD_SA5, "HP Smart Array P830i" }, 341 { 0x103C, 0x1922, CISS_BOARD_SA5, "HP Smart Array P430" }, 342 { 0x103C, 0x1923, CISS_BOARD_SA5, "HP Smart Array P431" }, 343 { 0x103C, 0x1924, CISS_BOARD_SA5, "HP Smart Array P830" }, 344 { 0x103C, 0x1926, CISS_BOARD_SA5, "HP Smart Array P731m" }, 345 { 0x103C, 0x1928, CISS_BOARD_SA5, "HP Smart Array P230i" }, 346 { 0x103C, 0x1929, CISS_BOARD_SA5, "HP Smart Array P530" }, 347 { 0x103C, 0x192A, CISS_BOARD_SA5, "HP Smart Array P531" }, 348 { 0x103C, 0x21BD, CISS_BOARD_SA5, "HP Smart Array P244br" }, 349 { 0x103C, 0x21BE, CISS_BOARD_SA5, "HP Smart Array P741m" }, 350 { 0x103C, 0x21BF, CISS_BOARD_SA5, "HP Smart Array H240ar" }, 351 { 0x103C, 0x21C0, CISS_BOARD_SA5, "HP Smart Array P440ar" }, 352 { 0x103C, 0x21C1, CISS_BOARD_SA5, "HP Smart Array P840ar" }, 353 { 0x103C, 0x21C2, CISS_BOARD_SA5, "HP Smart Array P440" }, 354 { 0x103C, 0x21C3, CISS_BOARD_SA5, "HP Smart Array P441" }, 355 { 0x103C, 0x21C5, CISS_BOARD_SA5, "HP Smart Array P841" }, 356 { 0x103C, 0x21C6, CISS_BOARD_SA5, "HP Smart Array H244br" }, 357 { 0x103C, 0x21C7, CISS_BOARD_SA5, "HP Smart Array H240" }, 358 { 0x103C, 0x21C8, CISS_BOARD_SA5, "HP Smart Array H241" }, 359 { 0x103C, 0x21CA, CISS_BOARD_SA5, "HP Smart Array P246br" }, 360 { 0x103C, 0x21CB, CISS_BOARD_SA5, "HP Smart Array P840" }, 361 { 0x103C, 0x21CC, CISS_BOARD_SA5, "HP Smart Array TBD" }, 362 { 0x103C, 0x21CD, CISS_BOARD_SA5, "HP Smart Array P240nr" }, 363 { 0x103C, 0x21CE, CISS_BOARD_SA5, "HP Smart Array H240nr" }, 364 { 0, 0, 0, NULL } 365 }; 366 367 /************************************************************************ 368 * Find a match for the device in our list of known adapters. 369 */ 370 static int 371 ciss_lookup(device_t dev) 372 { 373 int i; 374 375 for (i = 0; ciss_vendor_data[i].desc != NULL; i++) 376 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) && 377 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) { 378 return(i); 379 } 380 return(-1); 381 } 382 383 /************************************************************************ 384 * Match a known CISS adapter. 385 */ 386 static int 387 ciss_probe(device_t dev) 388 { 389 int i; 390 391 i = ciss_lookup(dev); 392 if (i != -1) { 393 device_set_desc(dev, ciss_vendor_data[i].desc); 394 return(BUS_PROBE_DEFAULT); 395 } 396 return(ENOENT); 397 } 398 399 /************************************************************************ 400 * Attach the driver to this adapter. 401 */ 402 static int 403 ciss_attach(device_t dev) 404 { 405 struct ciss_softc *sc; 406 int error; 407 408 debug_called(1); 409 410 #ifdef CISS_DEBUG 411 /* print structure/union sizes */ 412 debug_struct(ciss_command); 413 debug_struct(ciss_header); 414 debug_union(ciss_device_address); 415 debug_struct(ciss_cdb); 416 debug_struct(ciss_report_cdb); 417 debug_struct(ciss_notify_cdb); 418 debug_struct(ciss_notify); 419 debug_struct(ciss_message_cdb); 420 debug_struct(ciss_error_info_pointer); 421 debug_struct(ciss_error_info); 422 debug_struct(ciss_sg_entry); 423 debug_struct(ciss_config_table); 424 debug_struct(ciss_bmic_cdb); 425 debug_struct(ciss_bmic_id_ldrive); 426 debug_struct(ciss_bmic_id_lstatus); 427 debug_struct(ciss_bmic_id_table); 428 debug_struct(ciss_bmic_id_pdrive); 429 debug_struct(ciss_bmic_blink_pdrive); 430 debug_struct(ciss_bmic_flush_cache); 431 debug_const(CISS_MAX_REQUESTS); 432 debug_const(CISS_MAX_LOGICAL); 433 debug_const(CISS_INTERRUPT_COALESCE_DELAY); 434 debug_const(CISS_INTERRUPT_COALESCE_COUNT); 435 debug_const(CISS_COMMAND_ALLOC_SIZE); 436 debug_const(CISS_COMMAND_SG_LENGTH); 437 438 debug_type(cciss_pci_info_struct); 439 debug_type(cciss_coalint_struct); 440 debug_type(cciss_coalint_struct); 441 debug_type(NodeName_type); 442 debug_type(NodeName_type); 443 debug_type(Heartbeat_type); 444 debug_type(BusTypes_type); 445 debug_type(FirmwareVer_type); 446 debug_type(DriverVer_type); 447 debug_type(IOCTL_Command_struct); 448 #endif 449 450 sc = device_get_softc(dev); 451 sc->ciss_dev = dev; 452 mtx_init(&sc->ciss_mtx, "cissmtx", NULL, MTX_DEF); 453 callout_init_mtx(&sc->ciss_periodic, &sc->ciss_mtx, 0); 454 455 /* 456 * Do PCI-specific init. 457 */ 458 if ((error = ciss_init_pci(sc)) != 0) 459 goto out; 460 461 /* 462 * Initialise driver queues. 463 */ 464 ciss_initq_free(sc); 465 ciss_initq_notify(sc); 466 467 /* 468 * Initialize device sysctls. 469 */ 470 ciss_init_sysctl(sc); 471 472 /* 473 * Initialise command/request pool. 474 */ 475 if ((error = ciss_init_requests(sc)) != 0) 476 goto out; 477 478 /* 479 * Get adapter information. 480 */ 481 if ((error = ciss_identify_adapter(sc)) != 0) 482 goto out; 483 484 /* 485 * Find all the physical devices. 486 */ 487 if ((error = ciss_init_physical(sc)) != 0) 488 goto out; 489 490 /* 491 * Build our private table of logical devices. 492 */ 493 if ((error = ciss_init_logical(sc)) != 0) 494 goto out; 495 496 /* 497 * Enable interrupts so that the CAM scan can complete. 498 */ 499 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc); 500 501 /* 502 * Initialise the CAM interface. 503 */ 504 if ((error = ciss_cam_init(sc)) != 0) 505 goto out; 506 507 /* 508 * Start the heartbeat routine and event chain. 509 */ 510 ciss_periodic(sc); 511 512 /* 513 * Create the control device. 514 */ 515 sc->ciss_dev_t = make_dev(&ciss_cdevsw, device_get_unit(sc->ciss_dev), 516 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR, 517 "ciss%d", device_get_unit(sc->ciss_dev)); 518 sc->ciss_dev_t->si_drv1 = sc; 519 520 /* 521 * The adapter is running; synchronous commands can now sleep 522 * waiting for an interrupt to signal completion. 523 */ 524 sc->ciss_flags |= CISS_FLAG_RUNNING; 525 526 ciss_spawn_notify_thread(sc); 527 528 error = 0; 529 out: 530 if (error != 0) { 531 /* ciss_free() expects the mutex to be held */ 532 mtx_lock(&sc->ciss_mtx); 533 ciss_free(sc); 534 } 535 return(error); 536 } 537 538 /************************************************************************ 539 * Detach the driver from this adapter. 540 */ 541 static int 542 ciss_detach(device_t dev) 543 { 544 struct ciss_softc *sc = device_get_softc(dev); 545 546 debug_called(1); 547 548 mtx_lock(&sc->ciss_mtx); 549 if (sc->ciss_flags & CISS_FLAG_CONTROL_OPEN) { 550 mtx_unlock(&sc->ciss_mtx); 551 return (EBUSY); 552 } 553 554 /* flush adapter cache */ 555 ciss_flush_adapter(sc); 556 557 /* release all resources. The mutex is released and freed here too. */ 558 ciss_free(sc); 559 560 return(0); 561 } 562 563 /************************************************************************ 564 * Prepare adapter for system shutdown. 565 */ 566 static int 567 ciss_shutdown(device_t dev) 568 { 569 struct ciss_softc *sc = device_get_softc(dev); 570 571 debug_called(1); 572 573 mtx_lock(&sc->ciss_mtx); 574 /* flush adapter cache */ 575 ciss_flush_adapter(sc); 576 577 if (sc->ciss_soft_reset) 578 ciss_soft_reset(sc); 579 mtx_unlock(&sc->ciss_mtx); 580 581 return(0); 582 } 583 584 static void 585 ciss_init_sysctl(struct ciss_softc *sc) 586 { 587 588 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->ciss_dev), 589 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ciss_dev)), 590 OID_AUTO, "soft_reset", CTLFLAG_RW, &sc->ciss_soft_reset, 0, ""); 591 } 592 593 /************************************************************************ 594 * Perform PCI-specific attachment actions. 595 */ 596 static int 597 ciss_init_pci(struct ciss_softc *sc) 598 { 599 uintptr_t cbase, csize, cofs; 600 uint32_t method, supported_methods; 601 int error, sqmask, i; 602 void *intr; 603 604 debug_called(1); 605 606 /* 607 * Work out adapter type. 608 */ 609 i = ciss_lookup(sc->ciss_dev); 610 if (i < 0) { 611 ciss_printf(sc, "unknown adapter type\n"); 612 return (ENXIO); 613 } 614 615 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) { 616 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5; 617 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) { 618 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5B; 619 } else { 620 /* 621 * XXX Big hammer, masks/unmasks all possible interrupts. This should 622 * work on all hardware variants. Need to add code to handle the 623 * "controller crashed" interrupt bit that this unmasks. 624 */ 625 sqmask = ~0; 626 } 627 628 /* 629 * Allocate register window first (we need this to find the config 630 * struct). 631 */ 632 error = ENXIO; 633 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS; 634 if ((sc->ciss_regs_resource = 635 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 636 &sc->ciss_regs_rid, RF_ACTIVE)) == NULL) { 637 ciss_printf(sc, "can't allocate register window\n"); 638 return(ENXIO); 639 } 640 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource); 641 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource); 642 643 /* 644 * Find the BAR holding the config structure. If it's not the one 645 * we already mapped for registers, map it too. 646 */ 647 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff; 648 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) { 649 if ((sc->ciss_cfg_resource = 650 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 651 &sc->ciss_cfg_rid, RF_ACTIVE)) == NULL) { 652 ciss_printf(sc, "can't allocate config window\n"); 653 return(ENXIO); 654 } 655 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource); 656 csize = rman_get_end(sc->ciss_cfg_resource) - 657 rman_get_start(sc->ciss_cfg_resource) + 1; 658 } else { 659 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource); 660 csize = rman_get_end(sc->ciss_regs_resource) - 661 rman_get_start(sc->ciss_regs_resource) + 1; 662 } 663 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF); 664 665 /* 666 * Use the base/size/offset values we just calculated to 667 * sanity-check the config structure. If it's OK, point to it. 668 */ 669 if ((cofs + sizeof(struct ciss_config_table)) > csize) { 670 ciss_printf(sc, "config table outside window\n"); 671 return(ENXIO); 672 } 673 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs); 674 debug(1, "config struct at %p", sc->ciss_cfg); 675 676 /* 677 * Calculate the number of request structures/commands we are 678 * going to provide for this adapter. 679 */ 680 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands); 681 682 /* 683 * Validate the config structure. If we supported other transport 684 * methods, we could select amongst them at this point in time. 685 */ 686 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) { 687 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n", 688 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1], 689 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]); 690 return(ENXIO); 691 } 692 693 /* 694 * Select the mode of operation, prefer Performant. 695 */ 696 if (!(sc->ciss_cfg->supported_methods & 697 (CISS_TRANSPORT_METHOD_SIMPLE | CISS_TRANSPORT_METHOD_PERF))) { 698 ciss_printf(sc, "No supported transport layers: 0x%x\n", 699 sc->ciss_cfg->supported_methods); 700 } 701 702 switch (ciss_force_transport) { 703 case 1: 704 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE; 705 break; 706 case 2: 707 supported_methods = CISS_TRANSPORT_METHOD_PERF; 708 break; 709 default: 710 /* 711 * Override the capabilities of the BOARD and specify SIMPLE 712 * MODE 713 */ 714 if (ciss_vendor_data[i].flags & CISS_BOARD_SIMPLE) 715 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE; 716 else 717 supported_methods = sc->ciss_cfg->supported_methods; 718 break; 719 } 720 721 setup: 722 if ((supported_methods & CISS_TRANSPORT_METHOD_PERF) != 0) { 723 method = CISS_TRANSPORT_METHOD_PERF; 724 sc->ciss_perf = (struct ciss_perf_config *)(cbase + cofs + 725 sc->ciss_cfg->transport_offset); 726 if (ciss_init_perf(sc)) { 727 supported_methods &= ~method; 728 goto setup; 729 } 730 } else if (supported_methods & CISS_TRANSPORT_METHOD_SIMPLE) { 731 method = CISS_TRANSPORT_METHOD_SIMPLE; 732 } else { 733 ciss_printf(sc, "No supported transport methods: 0x%x\n", 734 sc->ciss_cfg->supported_methods); 735 return(ENXIO); 736 } 737 738 /* 739 * Tell it we're using the low 4GB of RAM. Set the default interrupt 740 * coalescing options. 741 */ 742 sc->ciss_cfg->requested_method = method; 743 sc->ciss_cfg->command_physlimit = 0; 744 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY; 745 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT; 746 747 #ifdef __i386__ 748 sc->ciss_cfg->host_driver |= CISS_DRIVER_SCSI_PREFETCH; 749 #endif 750 751 if (ciss_update_config(sc)) { 752 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n", 753 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR)); 754 return(ENXIO); 755 } 756 if ((sc->ciss_cfg->active_method & method) == 0) { 757 supported_methods &= ~method; 758 if (supported_methods == 0) { 759 ciss_printf(sc, "adapter refuses to go into available transports " 760 "mode (0x%x, 0x%x)\n", supported_methods, 761 sc->ciss_cfg->active_method); 762 return(ENXIO); 763 } else 764 goto setup; 765 } 766 767 /* 768 * Wait for the adapter to come ready. 769 */ 770 if ((error = ciss_wait_adapter(sc)) != 0) 771 return(error); 772 773 /* Prepare to possibly use MSIX and/or PERFORMANT interrupts. Normal 774 * interrupts have a rid of 0, this will be overridden if MSIX is used. 775 */ 776 sc->ciss_irq_rid[0] = 0; 777 if (method == CISS_TRANSPORT_METHOD_PERF) { 778 ciss_printf(sc, "PERFORMANT Transport\n"); 779 if ((ciss_force_interrupt != 1) && (ciss_setup_msix(sc) == 0)) { 780 intr = ciss_perf_msi_intr; 781 } else { 782 intr = ciss_perf_intr; 783 } 784 /* XXX The docs say that the 0x01 bit is only for SAS controllers. 785 * Unfortunately, there is no good way to know if this is a SAS 786 * controller. Hopefully enabling this bit universally will work OK. 787 * It seems to work fine for SA6i controllers. 788 */ 789 sc->ciss_interrupt_mask = CISS_TL_PERF_INTR_OPQ | CISS_TL_PERF_INTR_MSI; 790 791 } else { 792 ciss_printf(sc, "SIMPLE Transport\n"); 793 /* MSIX doesn't seem to work in SIMPLE mode, only enable if it forced */ 794 if (ciss_force_interrupt == 2) 795 /* If this fails, we automatically revert to INTx */ 796 ciss_setup_msix(sc); 797 sc->ciss_perf = NULL; 798 intr = ciss_intr; 799 sc->ciss_interrupt_mask = sqmask; 800 } 801 802 /* 803 * Turn off interrupts before we go routing anything. 804 */ 805 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 806 807 /* 808 * Allocate and set up our interrupt. 809 */ 810 if ((sc->ciss_irq_resource = 811 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid[0], 812 RF_ACTIVE | RF_SHAREABLE)) == NULL) { 813 ciss_printf(sc, "can't allocate interrupt\n"); 814 return(ENXIO); 815 } 816 817 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource, 818 INTR_TYPE_CAM|INTR_MPSAFE, NULL, intr, sc, 819 &sc->ciss_intr)) { 820 ciss_printf(sc, "can't set up interrupt\n"); 821 return(ENXIO); 822 } 823 824 /* 825 * Allocate the parent bus DMA tag appropriate for our PCI 826 * interface. 827 * 828 * Note that "simple" adapters can only address within a 32-bit 829 * span. 830 */ 831 if (bus_dma_tag_create(bus_get_dma_tag(sc->ciss_dev),/* PCI parent */ 832 1, 0, /* alignment, boundary */ 833 BUS_SPACE_MAXADDR, /* lowaddr */ 834 BUS_SPACE_MAXADDR, /* highaddr */ 835 NULL, NULL, /* filter, filterarg */ 836 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 837 BUS_SPACE_UNRESTRICTED, /* nsegments */ 838 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 839 0, /* flags */ 840 NULL, NULL, /* lockfunc, lockarg */ 841 &sc->ciss_parent_dmat)) { 842 ciss_printf(sc, "can't allocate parent DMA tag\n"); 843 return(ENOMEM); 844 } 845 846 /* 847 * Create DMA tag for mapping buffers into adapter-addressable 848 * space. 849 */ 850 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 851 1, 0, /* alignment, boundary */ 852 BUS_SPACE_MAXADDR, /* lowaddr */ 853 BUS_SPACE_MAXADDR, /* highaddr */ 854 NULL, NULL, /* filter, filterarg */ 855 (CISS_MAX_SG_ELEMENTS - 1) * PAGE_SIZE, /* maxsize */ 856 CISS_MAX_SG_ELEMENTS, /* nsegments */ 857 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 858 BUS_DMA_ALLOCNOW, /* flags */ 859 busdma_lock_mutex, &sc->ciss_mtx, /* lockfunc, lockarg */ 860 &sc->ciss_buffer_dmat)) { 861 ciss_printf(sc, "can't allocate buffer DMA tag\n"); 862 return(ENOMEM); 863 } 864 return(0); 865 } 866 867 /************************************************************************ 868 * Setup MSI/MSIX operation (Performant only) 869 * Four interrupts are available, but we only use 1 right now. If MSI-X 870 * isn't avaialble, try using MSI instead. 871 */ 872 static int 873 ciss_setup_msix(struct ciss_softc *sc) 874 { 875 int val, i; 876 877 /* Weed out devices that don't actually support MSI */ 878 i = ciss_lookup(sc->ciss_dev); 879 if (ciss_vendor_data[i].flags & CISS_BOARD_NOMSI) 880 return (EINVAL); 881 882 /* 883 * Only need to use the minimum number of MSI vectors, as the driver 884 * doesn't support directed MSIX interrupts. 885 */ 886 val = pci_msix_count(sc->ciss_dev); 887 if (val < CISS_MSI_COUNT) { 888 val = pci_msi_count(sc->ciss_dev); 889 device_printf(sc->ciss_dev, "got %d MSI messages]\n", val); 890 if (val < CISS_MSI_COUNT) 891 return (EINVAL); 892 } 893 val = MIN(val, CISS_MSI_COUNT); 894 if (pci_alloc_msix(sc->ciss_dev, &val) != 0) { 895 if (pci_alloc_msi(sc->ciss_dev, &val) != 0) 896 return (EINVAL); 897 } 898 899 sc->ciss_msi = val; 900 if (bootverbose) 901 ciss_printf(sc, "Using %d MSIX interrupt%s\n", val, 902 (val != 1) ? "s" : ""); 903 904 for (i = 0; i < val; i++) 905 sc->ciss_irq_rid[i] = i + 1; 906 907 return (0); 908 909 } 910 911 /************************************************************************ 912 * Setup the Performant structures. 913 */ 914 static int 915 ciss_init_perf(struct ciss_softc *sc) 916 { 917 struct ciss_perf_config *pc = sc->ciss_perf; 918 int reply_size; 919 920 /* 921 * Create the DMA tag for the reply queue. 922 */ 923 reply_size = sizeof(uint64_t) * sc->ciss_max_requests; 924 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 925 1, 0, /* alignment, boundary */ 926 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 927 BUS_SPACE_MAXADDR, /* highaddr */ 928 NULL, NULL, /* filter, filterarg */ 929 reply_size, 1, /* maxsize, nsegments */ 930 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 931 0, /* flags */ 932 NULL, NULL, /* lockfunc, lockarg */ 933 &sc->ciss_reply_dmat)) { 934 ciss_printf(sc, "can't allocate reply DMA tag\n"); 935 return(ENOMEM); 936 } 937 /* 938 * Allocate memory and make it available for DMA. 939 */ 940 if (bus_dmamem_alloc(sc->ciss_reply_dmat, (void **)&sc->ciss_reply, 941 BUS_DMA_NOWAIT, &sc->ciss_reply_map)) { 942 ciss_printf(sc, "can't allocate reply memory\n"); 943 return(ENOMEM); 944 } 945 bus_dmamap_load(sc->ciss_reply_dmat, sc->ciss_reply_map, sc->ciss_reply, 946 reply_size, ciss_command_map_helper, &sc->ciss_reply_phys, 0); 947 bzero(sc->ciss_reply, reply_size); 948 949 sc->ciss_cycle = 0x1; 950 sc->ciss_rqidx = 0; 951 952 /* 953 * Preload the fetch table with common command sizes. This allows the 954 * hardware to not waste bus cycles for typical i/o commands, but also not 955 * tax the driver to be too exact in choosing sizes. The table is optimized 956 * for page-aligned i/o's, but since most i/o comes from the various pagers, 957 * it's a reasonable assumption to make. 958 */ 959 pc->fetch_count[CISS_SG_FETCH_NONE] = (sizeof(struct ciss_command) + 15) / 16; 960 pc->fetch_count[CISS_SG_FETCH_1] = 961 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 1 + 15) / 16; 962 pc->fetch_count[CISS_SG_FETCH_2] = 963 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 2 + 15) / 16; 964 pc->fetch_count[CISS_SG_FETCH_4] = 965 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 4 + 15) / 16; 966 pc->fetch_count[CISS_SG_FETCH_8] = 967 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 8 + 15) / 16; 968 pc->fetch_count[CISS_SG_FETCH_16] = 969 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 16 + 15) / 16; 970 pc->fetch_count[CISS_SG_FETCH_32] = 971 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 32 + 15) / 16; 972 pc->fetch_count[CISS_SG_FETCH_MAX] = (CISS_COMMAND_ALLOC_SIZE + 15) / 16; 973 974 pc->rq_size = sc->ciss_max_requests; /* XXX less than the card supports? */ 975 pc->rq_count = 1; /* XXX Hardcode for a single queue */ 976 pc->rq_bank_hi = 0; 977 pc->rq_bank_lo = 0; 978 pc->rq[0].rq_addr_hi = 0x0; 979 pc->rq[0].rq_addr_lo = sc->ciss_reply_phys; 980 981 return(0); 982 } 983 984 /************************************************************************ 985 * Wait for the adapter to come ready. 986 */ 987 static int 988 ciss_wait_adapter(struct ciss_softc *sc) 989 { 990 int i; 991 992 debug_called(1); 993 994 /* 995 * Wait for the adapter to come ready. 996 */ 997 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) { 998 ciss_printf(sc, "waiting for adapter to come ready...\n"); 999 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) { 1000 DELAY(1000000); /* one second */ 1001 if (i > 30) { 1002 ciss_printf(sc, "timed out waiting for adapter to come ready\n"); 1003 return(EIO); 1004 } 1005 } 1006 } 1007 return(0); 1008 } 1009 1010 /************************************************************************ 1011 * Flush the adapter cache. 1012 */ 1013 static int 1014 ciss_flush_adapter(struct ciss_softc *sc) 1015 { 1016 struct ciss_request *cr; 1017 struct ciss_bmic_flush_cache *cbfc; 1018 int error, command_status; 1019 1020 debug_called(1); 1021 1022 cr = NULL; 1023 cbfc = NULL; 1024 1025 /* 1026 * Build a BMIC request to flush the cache. We don't disable 1027 * it, as we may be going to do more I/O (eg. we are emulating 1028 * the Synchronise Cache command). 1029 */ 1030 if ((cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 1031 error = ENOMEM; 1032 goto out; 1033 } 1034 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE, 1035 (void **)&cbfc, sizeof(*cbfc))) != 0) 1036 goto out; 1037 1038 /* 1039 * Submit the request and wait for it to complete. 1040 */ 1041 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1042 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error); 1043 goto out; 1044 } 1045 1046 /* 1047 * Check response. 1048 */ 1049 ciss_report_request(cr, &command_status, NULL); 1050 switch(command_status) { 1051 case CISS_CMD_STATUS_SUCCESS: 1052 break; 1053 default: 1054 ciss_printf(sc, "error flushing cache (%s)\n", 1055 ciss_name_command_status(command_status)); 1056 error = EIO; 1057 goto out; 1058 } 1059 1060 out: 1061 if (cbfc != NULL) 1062 free(cbfc, CISS_MALLOC_CLASS); 1063 if (cr != NULL) 1064 ciss_release_request(cr); 1065 return(error); 1066 } 1067 1068 static void 1069 ciss_soft_reset(struct ciss_softc *sc) 1070 { 1071 struct ciss_request *cr = NULL; 1072 struct ciss_command *cc; 1073 int i, error = 0; 1074 1075 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1076 /* only reset proxy controllers */ 1077 if (sc->ciss_controllers[i].physical.bus == 0) 1078 continue; 1079 1080 if ((error = ciss_get_request(sc, &cr)) != 0) 1081 break; 1082 1083 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_SOFT_RESET, 1084 NULL, 0)) != 0) 1085 break; 1086 1087 cc = cr->cr_cc; 1088 cc->header.address = sc->ciss_controllers[i]; 1089 1090 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) 1091 break; 1092 1093 ciss_release_request(cr); 1094 } 1095 1096 if (error) 1097 ciss_printf(sc, "error resetting controller (%d)\n", error); 1098 1099 if (cr != NULL) 1100 ciss_release_request(cr); 1101 } 1102 1103 /************************************************************************ 1104 * Allocate memory for the adapter command structures, initialise 1105 * the request structures. 1106 * 1107 * Note that the entire set of commands are allocated in a single 1108 * contiguous slab. 1109 */ 1110 static int 1111 ciss_init_requests(struct ciss_softc *sc) 1112 { 1113 struct ciss_request *cr; 1114 int i; 1115 1116 debug_called(1); 1117 1118 if (bootverbose) 1119 ciss_printf(sc, "using %d of %d available commands\n", 1120 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands); 1121 1122 /* 1123 * Create the DMA tag for commands. 1124 */ 1125 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 1126 32, 0, /* alignment, boundary */ 1127 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 1128 BUS_SPACE_MAXADDR, /* highaddr */ 1129 NULL, NULL, /* filter, filterarg */ 1130 CISS_COMMAND_ALLOC_SIZE * 1131 sc->ciss_max_requests, 1, /* maxsize, nsegments */ 1132 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 1133 0, /* flags */ 1134 NULL, NULL, /* lockfunc, lockarg */ 1135 &sc->ciss_command_dmat)) { 1136 ciss_printf(sc, "can't allocate command DMA tag\n"); 1137 return(ENOMEM); 1138 } 1139 /* 1140 * Allocate memory and make it available for DMA. 1141 */ 1142 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command, 1143 BUS_DMA_NOWAIT, &sc->ciss_command_map)) { 1144 ciss_printf(sc, "can't allocate command memory\n"); 1145 return(ENOMEM); 1146 } 1147 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map,sc->ciss_command, 1148 CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests, 1149 ciss_command_map_helper, &sc->ciss_command_phys, 0); 1150 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests); 1151 1152 /* 1153 * Set up the request and command structures, push requests onto 1154 * the free queue. 1155 */ 1156 for (i = 1; i < sc->ciss_max_requests; i++) { 1157 cr = &sc->ciss_request[i]; 1158 cr->cr_sc = sc; 1159 cr->cr_tag = i; 1160 cr->cr_cc = (struct ciss_command *)((uintptr_t)sc->ciss_command + 1161 CISS_COMMAND_ALLOC_SIZE * i); 1162 cr->cr_ccphys = sc->ciss_command_phys + CISS_COMMAND_ALLOC_SIZE * i; 1163 bus_dmamap_create(sc->ciss_buffer_dmat, 0, &cr->cr_datamap); 1164 ciss_enqueue_free(cr); 1165 } 1166 return(0); 1167 } 1168 1169 static void 1170 ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1171 { 1172 uint32_t *addr; 1173 1174 addr = arg; 1175 *addr = segs[0].ds_addr; 1176 } 1177 1178 /************************************************************************ 1179 * Identify the adapter, print some information about it. 1180 */ 1181 static int 1182 ciss_identify_adapter(struct ciss_softc *sc) 1183 { 1184 struct ciss_request *cr; 1185 int error, command_status; 1186 1187 debug_called(1); 1188 1189 cr = NULL; 1190 1191 /* 1192 * Get a request, allocate storage for the adapter data. 1193 */ 1194 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR, 1195 (void **)&sc->ciss_id, 1196 sizeof(*sc->ciss_id))) != 0) 1197 goto out; 1198 1199 /* 1200 * Submit the request and wait for it to complete. 1201 */ 1202 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1203 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error); 1204 goto out; 1205 } 1206 1207 /* 1208 * Check response. 1209 */ 1210 ciss_report_request(cr, &command_status, NULL); 1211 switch(command_status) { 1212 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1213 break; 1214 case CISS_CMD_STATUS_DATA_UNDERRUN: 1215 case CISS_CMD_STATUS_DATA_OVERRUN: 1216 ciss_printf(sc, "data over/underrun reading adapter information\n"); 1217 default: 1218 ciss_printf(sc, "error reading adapter information (%s)\n", 1219 ciss_name_command_status(command_status)); 1220 error = EIO; 1221 goto out; 1222 } 1223 1224 /* sanity-check reply */ 1225 if (!(sc->ciss_id->controller_flags & CONTROLLER_FLAGS_BIG_MAP_SUPPORT)) { 1226 ciss_printf(sc, "adapter does not support BIG_MAP\n"); 1227 error = ENXIO; 1228 goto out; 1229 } 1230 1231 #if 0 1232 /* XXX later revisions may not need this */ 1233 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH; 1234 #endif 1235 1236 /* XXX only really required for old 5300 adapters? */ 1237 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT; 1238 1239 /* 1240 * Earlier controller specs do not contain these config 1241 * entries, so assume that a 0 means its old and assign 1242 * these values to the defaults that were established 1243 * when this driver was developed for them 1244 */ 1245 if (sc->ciss_cfg->max_logical_supported == 0) 1246 sc->ciss_cfg->max_logical_supported = CISS_MAX_LOGICAL; 1247 if (sc->ciss_cfg->max_physical_supported == 0) 1248 sc->ciss_cfg->max_physical_supported = CISS_MAX_PHYSICAL; 1249 /* print information */ 1250 if (bootverbose) { 1251 ciss_printf(sc, " %d logical drive%s configured\n", 1252 sc->ciss_id->configured_logical_drives, 1253 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s"); 1254 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision); 1255 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_chip_count); 1256 1257 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature); 1258 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence); 1259 ciss_printf(sc, " supported I/O methods 0x%b\n", 1260 sc->ciss_cfg->supported_methods, 1261 "\20\1READY\2simple\3performant\4MEMQ\n"); 1262 ciss_printf(sc, " active I/O method 0x%b\n", 1263 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n"); 1264 ciss_printf(sc, " 4G page base 0x%08x\n", 1265 sc->ciss_cfg->command_physlimit); 1266 ciss_printf(sc, " interrupt coalesce delay %dus\n", 1267 sc->ciss_cfg->interrupt_coalesce_delay); 1268 ciss_printf(sc, " interrupt coalesce count %d\n", 1269 sc->ciss_cfg->interrupt_coalesce_count); 1270 ciss_printf(sc, " max outstanding commands %d\n", 1271 sc->ciss_cfg->max_outstanding_commands); 1272 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types, 1273 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n"); 1274 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name); 1275 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat); 1276 ciss_printf(sc, " max logical logical volumes: %d\n", sc->ciss_cfg->max_logical_supported); 1277 ciss_printf(sc, " max physical disks supported: %d\n", sc->ciss_cfg->max_physical_supported); 1278 ciss_printf(sc, " max physical disks per logical volume: %d\n", sc->ciss_cfg->max_physical_per_logical); 1279 ciss_printf(sc, " JBOD Support is %s\n", (sc->ciss_id->uiYetMoreControllerFlags & YMORE_CONTROLLER_FLAGS_JBOD_SUPPORTED) ? 1280 "Available" : "Unavailable"); 1281 ciss_printf(sc, " JBOD Mode is %s\n", (sc->ciss_id->PowerUPNvramFlags & PWR_UP_FLAG_JBOD_ENABLED) ? 1282 "Enabled" : "Disabled"); 1283 } 1284 1285 out: 1286 if (error) { 1287 if (sc->ciss_id != NULL) { 1288 free(sc->ciss_id, CISS_MALLOC_CLASS); 1289 sc->ciss_id = NULL; 1290 } 1291 } 1292 if (cr != NULL) 1293 ciss_release_request(cr); 1294 return(error); 1295 } 1296 1297 /************************************************************************ 1298 * Helper routine for generating a list of logical and physical luns. 1299 */ 1300 static struct ciss_lun_report * 1301 ciss_report_luns(struct ciss_softc *sc, int opcode, int nunits) 1302 { 1303 struct ciss_request *cr; 1304 struct ciss_command *cc; 1305 struct ciss_report_cdb *crc; 1306 struct ciss_lun_report *cll; 1307 int command_status; 1308 int report_size; 1309 int error = 0; 1310 1311 debug_called(1); 1312 1313 cr = NULL; 1314 cll = NULL; 1315 1316 /* 1317 * Get a request, allocate storage for the address list. 1318 */ 1319 if ((error = ciss_get_request(sc, &cr)) != 0) 1320 goto out; 1321 report_size = sizeof(*cll) + nunits * sizeof(union ciss_device_address); 1322 if ((cll = malloc(report_size, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 1323 ciss_printf(sc, "can't allocate memory for lun report\n"); 1324 error = ENOMEM; 1325 goto out; 1326 } 1327 1328 /* 1329 * Build the Report Logical/Physical LUNs command. 1330 */ 1331 cc = cr->cr_cc; 1332 cr->cr_data = cll; 1333 cr->cr_length = report_size; 1334 cr->cr_flags = CISS_REQ_DATAIN; 1335 1336 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 1337 cc->header.address.physical.bus = 0; 1338 cc->header.address.physical.target = 0; 1339 cc->cdb.cdb_length = sizeof(*crc); 1340 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1341 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1342 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1343 cc->cdb.timeout = 30; /* XXX better suggestions? */ 1344 1345 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]); 1346 bzero(crc, sizeof(*crc)); 1347 crc->opcode = opcode; 1348 crc->length = htonl(report_size); /* big-endian field */ 1349 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */ 1350 1351 /* 1352 * Submit the request and wait for it to complete. (timeout 1353 * here should be much greater than above) 1354 */ 1355 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1356 ciss_printf(sc, "error sending %d LUN command (%d)\n", opcode, error); 1357 goto out; 1358 } 1359 1360 /* 1361 * Check response. Note that data over/underrun is OK. 1362 */ 1363 ciss_report_request(cr, &command_status, NULL); 1364 switch(command_status) { 1365 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1366 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */ 1367 break; 1368 case CISS_CMD_STATUS_DATA_OVERRUN: 1369 ciss_printf(sc, "WARNING: more units than driver limit (%d)\n", 1370 sc->ciss_cfg->max_logical_supported); 1371 break; 1372 default: 1373 ciss_printf(sc, "error detecting logical drive configuration (%s)\n", 1374 ciss_name_command_status(command_status)); 1375 error = EIO; 1376 goto out; 1377 } 1378 ciss_release_request(cr); 1379 cr = NULL; 1380 1381 out: 1382 if (cr != NULL) 1383 ciss_release_request(cr); 1384 if (error && cll != NULL) { 1385 free(cll, CISS_MALLOC_CLASS); 1386 cll = NULL; 1387 } 1388 return(cll); 1389 } 1390 1391 /************************************************************************ 1392 * Find logical drives on the adapter. 1393 */ 1394 static int 1395 ciss_init_logical(struct ciss_softc *sc) 1396 { 1397 struct ciss_lun_report *cll; 1398 int error = 0, i, j; 1399 int ndrives; 1400 1401 debug_called(1); 1402 1403 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 1404 sc->ciss_cfg->max_logical_supported); 1405 if (cll == NULL) { 1406 error = ENXIO; 1407 goto out; 1408 } 1409 1410 /* sanity-check reply */ 1411 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1412 if ((ndrives < 0) || (ndrives > sc->ciss_cfg->max_logical_supported)) { 1413 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n", 1414 ndrives, sc->ciss_cfg->max_logical_supported); 1415 error = ENXIO; 1416 goto out; 1417 } 1418 1419 /* 1420 * Save logical drive information. 1421 */ 1422 if (bootverbose) { 1423 ciss_printf(sc, "%d logical drive%s\n", 1424 ndrives, (ndrives > 1 || ndrives == 0) ? "s" : ""); 1425 } 1426 1427 sc->ciss_logical = 1428 malloc(sc->ciss_max_logical_bus * sizeof(struct ciss_ldrive *), 1429 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1430 if (sc->ciss_logical == NULL) { 1431 error = ENXIO; 1432 goto out; 1433 } 1434 1435 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1436 sc->ciss_logical[i] = 1437 malloc(sc->ciss_cfg->max_logical_supported * 1438 sizeof(struct ciss_ldrive), 1439 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1440 if (sc->ciss_logical[i] == NULL) { 1441 error = ENXIO; 1442 goto out; 1443 } 1444 1445 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) 1446 sc->ciss_logical[i][j].cl_status = CISS_LD_NONEXISTENT; 1447 } 1448 1449 1450 for (i = 0; i < sc->ciss_cfg->max_logical_supported; i++) { 1451 if (i < ndrives) { 1452 struct ciss_ldrive *ld; 1453 int bus, target; 1454 1455 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 1456 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 1457 ld = &sc->ciss_logical[bus][target]; 1458 1459 ld->cl_address = cll->lun[i]; 1460 ld->cl_controller = &sc->ciss_controllers[bus]; 1461 if (ciss_identify_logical(sc, ld) != 0) 1462 continue; 1463 /* 1464 * If the drive has had media exchanged, we should bring it online. 1465 */ 1466 if (ld->cl_lstatus->media_exchanged) 1467 ciss_accept_media(sc, ld); 1468 1469 } 1470 } 1471 1472 out: 1473 if (cll != NULL) 1474 free(cll, CISS_MALLOC_CLASS); 1475 return(error); 1476 } 1477 1478 static int 1479 ciss_init_physical(struct ciss_softc *sc) 1480 { 1481 struct ciss_lun_report *cll; 1482 int error = 0, i; 1483 int nphys; 1484 int bus, target; 1485 1486 debug_called(1); 1487 1488 bus = 0; 1489 target = 0; 1490 1491 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 1492 sc->ciss_cfg->max_physical_supported); 1493 if (cll == NULL) { 1494 error = ENXIO; 1495 goto out; 1496 } 1497 1498 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1499 1500 if (bootverbose) { 1501 ciss_printf(sc, "%d physical device%s\n", 1502 nphys, (nphys > 1 || nphys == 0) ? "s" : ""); 1503 } 1504 1505 /* 1506 * Figure out the bus mapping. 1507 * Logical buses include both the local logical bus for local arrays and 1508 * proxy buses for remote arrays. Physical buses are numbered by the 1509 * controller and represent physical buses that hold physical devices. 1510 * We shift these bus numbers so that everything fits into a single flat 1511 * numbering space for CAM. Logical buses occupy the first 32 CAM bus 1512 * numbers, and the physical bus numbers are shifted to be above that. 1513 * This results in the various driver arrays being indexed as follows: 1514 * 1515 * ciss_controllers[] - indexed by logical bus 1516 * ciss_cam_sim[] - indexed by both logical and physical, with physical 1517 * being shifted by 32. 1518 * ciss_logical[][] - indexed by logical bus 1519 * ciss_physical[][] - indexed by physical bus 1520 * 1521 * XXX This is getting more and more hackish. CISS really doesn't play 1522 * well with a standard SCSI model; devices are addressed via magic 1523 * cookies, not via b/t/l addresses. Since there is no way to store 1524 * the cookie in the CAM device object, we have to keep these lookup 1525 * tables handy so that the devices can be found quickly at the cost 1526 * of wasting memory and having a convoluted lookup scheme. This 1527 * driver should probably be converted to block interface. 1528 */ 1529 /* 1530 * If the L2 and L3 SCSI addresses are 0, this signifies a proxy 1531 * controller. A proxy controller is another physical controller 1532 * behind the primary PCI controller. We need to know about this 1533 * so that BMIC commands can be properly targeted. There can be 1534 * proxy controllers attached to a single PCI controller, so 1535 * find the highest numbered one so the array can be properly 1536 * sized. 1537 */ 1538 sc->ciss_max_logical_bus = 1; 1539 for (i = 0; i < nphys; i++) { 1540 if (cll->lun[i].physical.extra_address == 0) { 1541 bus = cll->lun[i].physical.bus; 1542 sc->ciss_max_logical_bus = max(sc->ciss_max_logical_bus, bus) + 1; 1543 } else { 1544 bus = CISS_EXTRA_BUS2(cll->lun[i].physical.extra_address); 1545 sc->ciss_max_physical_bus = max(sc->ciss_max_physical_bus, bus); 1546 } 1547 } 1548 1549 sc->ciss_controllers = 1550 malloc(sc->ciss_max_logical_bus * sizeof (union ciss_device_address), 1551 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1552 1553 if (sc->ciss_controllers == NULL) { 1554 ciss_printf(sc, "Could not allocate memory for controller map\n"); 1555 error = ENOMEM; 1556 goto out; 1557 } 1558 1559 /* setup a map of controller addresses */ 1560 for (i = 0; i < nphys; i++) { 1561 if (cll->lun[i].physical.extra_address == 0) { 1562 sc->ciss_controllers[cll->lun[i].physical.bus] = cll->lun[i]; 1563 } 1564 } 1565 1566 sc->ciss_physical = 1567 malloc(sc->ciss_max_physical_bus * sizeof(struct ciss_pdrive *), 1568 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1569 if (sc->ciss_physical == NULL) { 1570 ciss_printf(sc, "Could not allocate memory for physical device map\n"); 1571 error = ENOMEM; 1572 goto out; 1573 } 1574 1575 for (i = 0; i < sc->ciss_max_physical_bus; i++) { 1576 sc->ciss_physical[i] = 1577 malloc(sizeof(struct ciss_pdrive) * CISS_MAX_PHYSTGT, 1578 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1579 if (sc->ciss_physical[i] == NULL) { 1580 ciss_printf(sc, "Could not allocate memory for target map\n"); 1581 error = ENOMEM; 1582 goto out; 1583 } 1584 } 1585 1586 ciss_filter_physical(sc, cll); 1587 1588 out: 1589 if (cll != NULL) 1590 free(cll, CISS_MALLOC_CLASS); 1591 1592 return(error); 1593 } 1594 1595 static int 1596 ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll) 1597 { 1598 u_int32_t ea; 1599 int i, nphys; 1600 int bus, target; 1601 1602 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1603 for (i = 0; i < nphys; i++) { 1604 if (cll->lun[i].physical.extra_address == 0) 1605 continue; 1606 1607 /* 1608 * Filter out devices that we don't want. Level 3 LUNs could 1609 * probably be supported, but the docs don't give enough of a 1610 * hint to know how. 1611 * 1612 * The mode field of the physical address is likely set to have 1613 * hard disks masked out. Honor it unless the user has overridden 1614 * us with the tunable. We also munge the inquiry data for these 1615 * disks so that they only show up as passthrough devices. Keeping 1616 * them visible in this fashion is useful for doing things like 1617 * flashing firmware. 1618 */ 1619 ea = cll->lun[i].physical.extra_address; 1620 if ((CISS_EXTRA_BUS3(ea) != 0) || (CISS_EXTRA_TARGET3(ea) != 0) || 1621 (CISS_EXTRA_MODE2(ea) == 0x3)) 1622 continue; 1623 if ((ciss_expose_hidden_physical == 0) && 1624 (cll->lun[i].physical.mode == CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL)) 1625 continue; 1626 1627 /* 1628 * Note: CISS firmware numbers physical busses starting at '1', not 1629 * '0'. This numbering is internal to the firmware and is only 1630 * used as a hint here. 1631 */ 1632 bus = CISS_EXTRA_BUS2(ea) - 1; 1633 target = CISS_EXTRA_TARGET2(ea); 1634 sc->ciss_physical[bus][target].cp_address = cll->lun[i]; 1635 sc->ciss_physical[bus][target].cp_online = 1; 1636 } 1637 1638 return (0); 1639 } 1640 1641 static int 1642 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1643 { 1644 struct ciss_request *cr; 1645 struct ciss_command *cc; 1646 struct scsi_inquiry *inq; 1647 int error; 1648 int command_status; 1649 1650 cr = NULL; 1651 1652 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry)); 1653 1654 if ((error = ciss_get_request(sc, &cr)) != 0) 1655 goto out; 1656 1657 cc = cr->cr_cc; 1658 cr->cr_data = &ld->cl_geometry; 1659 cr->cr_length = sizeof(ld->cl_geometry); 1660 cr->cr_flags = CISS_REQ_DATAIN; 1661 1662 cc->header.address = ld->cl_address; 1663 cc->cdb.cdb_length = 6; 1664 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1665 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1666 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1667 cc->cdb.timeout = 30; 1668 1669 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]); 1670 inq->opcode = INQUIRY; 1671 inq->byte2 = SI_EVPD; 1672 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY; 1673 scsi_ulto2b(sizeof(ld->cl_geometry), inq->length); 1674 1675 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1676 ciss_printf(sc, "error getting geometry (%d)\n", error); 1677 goto out; 1678 } 1679 1680 ciss_report_request(cr, &command_status, NULL); 1681 switch(command_status) { 1682 case CISS_CMD_STATUS_SUCCESS: 1683 case CISS_CMD_STATUS_DATA_UNDERRUN: 1684 break; 1685 case CISS_CMD_STATUS_DATA_OVERRUN: 1686 ciss_printf(sc, "WARNING: Data overrun\n"); 1687 break; 1688 default: 1689 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n", 1690 ciss_name_command_status(command_status)); 1691 break; 1692 } 1693 1694 out: 1695 if (cr != NULL) 1696 ciss_release_request(cr); 1697 return(error); 1698 } 1699 /************************************************************************ 1700 * Identify a logical drive, initialise state related to it. 1701 */ 1702 static int 1703 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1704 { 1705 struct ciss_request *cr; 1706 struct ciss_command *cc; 1707 struct ciss_bmic_cdb *cbc; 1708 int error, command_status; 1709 1710 debug_called(1); 1711 1712 cr = NULL; 1713 1714 /* 1715 * Build a BMIC request to fetch the drive ID. 1716 */ 1717 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE, 1718 (void **)&ld->cl_ldrive, 1719 sizeof(*ld->cl_ldrive))) != 0) 1720 goto out; 1721 cc = cr->cr_cc; 1722 cc->header.address = *ld->cl_controller; /* target controller */ 1723 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1724 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1725 1726 /* 1727 * Submit the request and wait for it to complete. 1728 */ 1729 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1730 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error); 1731 goto out; 1732 } 1733 1734 /* 1735 * Check response. 1736 */ 1737 ciss_report_request(cr, &command_status, NULL); 1738 switch(command_status) { 1739 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1740 break; 1741 case CISS_CMD_STATUS_DATA_UNDERRUN: 1742 case CISS_CMD_STATUS_DATA_OVERRUN: 1743 ciss_printf(sc, "data over/underrun reading logical drive ID\n"); 1744 default: 1745 ciss_printf(sc, "error reading logical drive ID (%s)\n", 1746 ciss_name_command_status(command_status)); 1747 error = EIO; 1748 goto out; 1749 } 1750 ciss_release_request(cr); 1751 cr = NULL; 1752 1753 /* 1754 * Build a CISS BMIC command to get the logical drive status. 1755 */ 1756 if ((error = ciss_get_ldrive_status(sc, ld)) != 0) 1757 goto out; 1758 1759 /* 1760 * Get the logical drive geometry. 1761 */ 1762 if ((error = ciss_inquiry_logical(sc, ld)) != 0) 1763 goto out; 1764 1765 /* 1766 * Print the drive's basic characteristics. 1767 */ 1768 if (bootverbose) { 1769 ciss_printf(sc, "logical drive (b%dt%d): %s, %dMB ", 1770 CISS_LUN_TO_BUS(ld->cl_address.logical.lun), 1771 CISS_LUN_TO_TARGET(ld->cl_address.logical.lun), 1772 ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance), 1773 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) * 1774 ld->cl_ldrive->block_size)); 1775 1776 ciss_print_ldrive(sc, ld); 1777 } 1778 out: 1779 if (error != 0) { 1780 /* make the drive not-exist */ 1781 ld->cl_status = CISS_LD_NONEXISTENT; 1782 if (ld->cl_ldrive != NULL) { 1783 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 1784 ld->cl_ldrive = NULL; 1785 } 1786 if (ld->cl_lstatus != NULL) { 1787 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 1788 ld->cl_lstatus = NULL; 1789 } 1790 } 1791 if (cr != NULL) 1792 ciss_release_request(cr); 1793 1794 return(error); 1795 } 1796 1797 /************************************************************************ 1798 * Get status for a logical drive. 1799 * 1800 * XXX should we also do this in response to Test Unit Ready? 1801 */ 1802 static int 1803 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld) 1804 { 1805 struct ciss_request *cr; 1806 struct ciss_command *cc; 1807 struct ciss_bmic_cdb *cbc; 1808 int error, command_status; 1809 1810 /* 1811 * Build a CISS BMIC command to get the logical drive status. 1812 */ 1813 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS, 1814 (void **)&ld->cl_lstatus, 1815 sizeof(*ld->cl_lstatus))) != 0) 1816 goto out; 1817 cc = cr->cr_cc; 1818 cc->header.address = *ld->cl_controller; /* target controller */ 1819 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1820 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1821 1822 /* 1823 * Submit the request and wait for it to complete. 1824 */ 1825 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1826 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1827 goto out; 1828 } 1829 1830 /* 1831 * Check response. 1832 */ 1833 ciss_report_request(cr, &command_status, NULL); 1834 switch(command_status) { 1835 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1836 break; 1837 case CISS_CMD_STATUS_DATA_UNDERRUN: 1838 case CISS_CMD_STATUS_DATA_OVERRUN: 1839 ciss_printf(sc, "data over/underrun reading logical drive status\n"); 1840 default: 1841 ciss_printf(sc, "error reading logical drive status (%s)\n", 1842 ciss_name_command_status(command_status)); 1843 error = EIO; 1844 goto out; 1845 } 1846 1847 /* 1848 * Set the drive's summary status based on the returned status. 1849 * 1850 * XXX testing shows that a failed JBOD drive comes back at next 1851 * boot in "queued for expansion" mode. WTF? 1852 */ 1853 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status); 1854 1855 out: 1856 if (cr != NULL) 1857 ciss_release_request(cr); 1858 return(error); 1859 } 1860 1861 /************************************************************************ 1862 * Notify the adapter of a config update. 1863 */ 1864 static int 1865 ciss_update_config(struct ciss_softc *sc) 1866 { 1867 int i; 1868 1869 debug_called(1); 1870 1871 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE); 1872 for (i = 0; i < 1000; i++) { 1873 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) & 1874 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) { 1875 return(0); 1876 } 1877 DELAY(1000); 1878 } 1879 return(1); 1880 } 1881 1882 /************************************************************************ 1883 * Accept new media into a logical drive. 1884 * 1885 * XXX The drive has previously been offline; it would be good if we 1886 * could make sure it's not open right now. 1887 */ 1888 static int 1889 ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld) 1890 { 1891 struct ciss_request *cr; 1892 struct ciss_command *cc; 1893 struct ciss_bmic_cdb *cbc; 1894 int command_status; 1895 int error = 0, ldrive; 1896 1897 ldrive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1898 1899 debug(0, "bringing logical drive %d back online", ldrive); 1900 1901 /* 1902 * Build a CISS BMIC command to bring the drive back online. 1903 */ 1904 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA, 1905 NULL, 0)) != 0) 1906 goto out; 1907 cc = cr->cr_cc; 1908 cc->header.address = *ld->cl_controller; /* target controller */ 1909 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1910 cbc->log_drive = ldrive; 1911 1912 /* 1913 * Submit the request and wait for it to complete. 1914 */ 1915 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1916 ciss_printf(sc, "error sending BMIC ACCEPT MEDIA command (%d)\n", error); 1917 goto out; 1918 } 1919 1920 /* 1921 * Check response. 1922 */ 1923 ciss_report_request(cr, &command_status, NULL); 1924 switch(command_status) { 1925 case CISS_CMD_STATUS_SUCCESS: /* all OK */ 1926 /* we should get a logical drive status changed event here */ 1927 break; 1928 default: 1929 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n", 1930 ciss_name_command_status(command_status)); 1931 break; 1932 } 1933 1934 out: 1935 if (cr != NULL) 1936 ciss_release_request(cr); 1937 return(error); 1938 } 1939 1940 /************************************************************************ 1941 * Release adapter resources. 1942 */ 1943 static void 1944 ciss_free(struct ciss_softc *sc) 1945 { 1946 struct ciss_request *cr; 1947 int i, j; 1948 1949 debug_called(1); 1950 1951 /* we're going away */ 1952 sc->ciss_flags |= CISS_FLAG_ABORTING; 1953 1954 /* terminate the periodic heartbeat routine */ 1955 callout_stop(&sc->ciss_periodic); 1956 1957 /* cancel the Event Notify chain */ 1958 ciss_notify_abort(sc); 1959 1960 ciss_kill_notify_thread(sc); 1961 1962 /* disconnect from CAM */ 1963 if (sc->ciss_cam_sim) { 1964 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1965 if (sc->ciss_cam_sim[i]) { 1966 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1967 cam_sim_free(sc->ciss_cam_sim[i], 0); 1968 } 1969 } 1970 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 1971 CISS_PHYSICAL_BASE; i++) { 1972 if (sc->ciss_cam_sim[i]) { 1973 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1974 cam_sim_free(sc->ciss_cam_sim[i], 0); 1975 } 1976 } 1977 free(sc->ciss_cam_sim, CISS_MALLOC_CLASS); 1978 } 1979 if (sc->ciss_cam_devq) 1980 cam_simq_free(sc->ciss_cam_devq); 1981 1982 /* remove the control device */ 1983 mtx_unlock(&sc->ciss_mtx); 1984 if (sc->ciss_dev_t != NULL) 1985 destroy_dev(sc->ciss_dev_t); 1986 1987 /* Final cleanup of the callout. */ 1988 callout_drain(&sc->ciss_periodic); 1989 mtx_destroy(&sc->ciss_mtx); 1990 1991 /* free the controller data */ 1992 if (sc->ciss_id != NULL) 1993 free(sc->ciss_id, CISS_MALLOC_CLASS); 1994 1995 /* release I/O resources */ 1996 if (sc->ciss_regs_resource != NULL) 1997 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1998 sc->ciss_regs_rid, sc->ciss_regs_resource); 1999 if (sc->ciss_cfg_resource != NULL) 2000 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 2001 sc->ciss_cfg_rid, sc->ciss_cfg_resource); 2002 if (sc->ciss_intr != NULL) 2003 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr); 2004 if (sc->ciss_irq_resource != NULL) 2005 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ, 2006 sc->ciss_irq_rid[0], sc->ciss_irq_resource); 2007 if (sc->ciss_msi) 2008 pci_release_msi(sc->ciss_dev); 2009 2010 while ((cr = ciss_dequeue_free(sc)) != NULL) 2011 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap); 2012 if (sc->ciss_buffer_dmat) 2013 bus_dma_tag_destroy(sc->ciss_buffer_dmat); 2014 2015 /* destroy command memory and DMA tag */ 2016 if (sc->ciss_command != NULL) { 2017 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map); 2018 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map); 2019 } 2020 if (sc->ciss_command_dmat) 2021 bus_dma_tag_destroy(sc->ciss_command_dmat); 2022 2023 if (sc->ciss_reply) { 2024 bus_dmamap_unload(sc->ciss_reply_dmat, sc->ciss_reply_map); 2025 bus_dmamem_free(sc->ciss_reply_dmat, sc->ciss_reply, sc->ciss_reply_map); 2026 } 2027 if (sc->ciss_reply_dmat) 2028 bus_dma_tag_destroy(sc->ciss_reply_dmat); 2029 2030 /* destroy DMA tags */ 2031 if (sc->ciss_parent_dmat) 2032 bus_dma_tag_destroy(sc->ciss_parent_dmat); 2033 if (sc->ciss_logical) { 2034 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 2035 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) { 2036 if (sc->ciss_logical[i][j].cl_ldrive) 2037 free(sc->ciss_logical[i][j].cl_ldrive, CISS_MALLOC_CLASS); 2038 if (sc->ciss_logical[i][j].cl_lstatus) 2039 free(sc->ciss_logical[i][j].cl_lstatus, CISS_MALLOC_CLASS); 2040 } 2041 free(sc->ciss_logical[i], CISS_MALLOC_CLASS); 2042 } 2043 free(sc->ciss_logical, CISS_MALLOC_CLASS); 2044 } 2045 2046 if (sc->ciss_physical) { 2047 for (i = 0; i < sc->ciss_max_physical_bus; i++) 2048 free(sc->ciss_physical[i], CISS_MALLOC_CLASS); 2049 free(sc->ciss_physical, CISS_MALLOC_CLASS); 2050 } 2051 2052 if (sc->ciss_controllers) 2053 free(sc->ciss_controllers, CISS_MALLOC_CLASS); 2054 2055 } 2056 2057 /************************************************************************ 2058 * Give a command to the adapter. 2059 * 2060 * Note that this uses the simple transport layer directly. If we 2061 * want to add support for other layers, we'll need a switch of some 2062 * sort. 2063 * 2064 * Note that the simple transport layer has no way of refusing a 2065 * command; we only have as many request structures as the adapter 2066 * supports commands, so we don't have to check (this presumes that 2067 * the adapter can handle commands as fast as we throw them at it). 2068 */ 2069 static int 2070 ciss_start(struct ciss_request *cr) 2071 { 2072 struct ciss_command *cc; /* XXX debugging only */ 2073 int error; 2074 2075 cc = cr->cr_cc; 2076 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag); 2077 2078 /* 2079 * Map the request's data. 2080 */ 2081 if ((error = ciss_map_request(cr))) 2082 return(error); 2083 2084 #if 0 2085 ciss_print_request(cr); 2086 #endif 2087 2088 return(0); 2089 } 2090 2091 /************************************************************************ 2092 * Fetch completed request(s) from the adapter, queue them for 2093 * completion handling. 2094 * 2095 * Note that this uses the simple transport layer directly. If we 2096 * want to add support for other layers, we'll need a switch of some 2097 * sort. 2098 * 2099 * Note that the simple transport mechanism does not require any 2100 * reentrancy protection; the OPQ read is atomic. If there is a 2101 * chance of a race with something else that might move the request 2102 * off the busy list, then we will have to lock against that 2103 * (eg. timeouts, etc.) 2104 */ 2105 static void 2106 ciss_done(struct ciss_softc *sc, cr_qhead_t *qh) 2107 { 2108 struct ciss_request *cr; 2109 struct ciss_command *cc; 2110 u_int32_t tag, index; 2111 2112 debug_called(3); 2113 2114 /* 2115 * Loop quickly taking requests from the adapter and moving them 2116 * to the completed queue. 2117 */ 2118 for (;;) { 2119 2120 tag = CISS_TL_SIMPLE_FETCH_CMD(sc); 2121 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY) 2122 break; 2123 index = tag >> 2; 2124 debug(2, "completed command %d%s", index, 2125 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2126 if (index >= sc->ciss_max_requests) { 2127 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2128 continue; 2129 } 2130 cr = &(sc->ciss_request[index]); 2131 cc = cr->cr_cc; 2132 cc->header.host_tag = tag; /* not updated by adapter */ 2133 ciss_enqueue_complete(cr, qh); 2134 } 2135 2136 } 2137 2138 static void 2139 ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh) 2140 { 2141 struct ciss_request *cr; 2142 struct ciss_command *cc; 2143 u_int32_t tag, index; 2144 2145 debug_called(3); 2146 2147 /* 2148 * Loop quickly taking requests from the adapter and moving them 2149 * to the completed queue. 2150 */ 2151 for (;;) { 2152 tag = sc->ciss_reply[sc->ciss_rqidx]; 2153 if ((tag & CISS_CYCLE_MASK) != sc->ciss_cycle) 2154 break; 2155 index = tag >> 2; 2156 debug(2, "completed command %d%s\n", index, 2157 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2158 if (index < sc->ciss_max_requests) { 2159 cr = &(sc->ciss_request[index]); 2160 cc = cr->cr_cc; 2161 cc->header.host_tag = tag; /* not updated by adapter */ 2162 ciss_enqueue_complete(cr, qh); 2163 } else { 2164 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2165 } 2166 if (++sc->ciss_rqidx == sc->ciss_max_requests) { 2167 sc->ciss_rqidx = 0; 2168 sc->ciss_cycle ^= 1; 2169 } 2170 } 2171 2172 } 2173 2174 /************************************************************************ 2175 * Take an interrupt from the adapter. 2176 */ 2177 static void 2178 ciss_intr(void *arg) 2179 { 2180 cr_qhead_t qh; 2181 struct ciss_softc *sc = (struct ciss_softc *)arg; 2182 2183 /* 2184 * The only interrupt we recognise indicates that there are 2185 * entries in the outbound post queue. 2186 */ 2187 STAILQ_INIT(&qh); 2188 ciss_done(sc, &qh); 2189 mtx_lock(&sc->ciss_mtx); 2190 ciss_complete(sc, &qh); 2191 mtx_unlock(&sc->ciss_mtx); 2192 } 2193 2194 static void 2195 ciss_perf_intr(void *arg) 2196 { 2197 struct ciss_softc *sc = (struct ciss_softc *)arg; 2198 2199 /* Clear the interrupt and flush the bridges. Docs say that the flush 2200 * needs to be done twice, which doesn't seem right. 2201 */ 2202 CISS_TL_PERF_CLEAR_INT(sc); 2203 CISS_TL_PERF_FLUSH_INT(sc); 2204 2205 ciss_perf_msi_intr(sc); 2206 } 2207 2208 static void 2209 ciss_perf_msi_intr(void *arg) 2210 { 2211 cr_qhead_t qh; 2212 struct ciss_softc *sc = (struct ciss_softc *)arg; 2213 2214 STAILQ_INIT(&qh); 2215 ciss_perf_done(sc, &qh); 2216 mtx_lock(&sc->ciss_mtx); 2217 ciss_complete(sc, &qh); 2218 mtx_unlock(&sc->ciss_mtx); 2219 } 2220 2221 2222 /************************************************************************ 2223 * Process completed requests. 2224 * 2225 * Requests can be completed in three fashions: 2226 * 2227 * - by invoking a callback function (cr_complete is non-null) 2228 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set) 2229 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context 2230 */ 2231 static void 2232 ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh) 2233 { 2234 struct ciss_request *cr; 2235 2236 debug_called(2); 2237 2238 /* 2239 * Loop taking requests off the completed queue and performing 2240 * completion processing on them. 2241 */ 2242 for (;;) { 2243 if ((cr = ciss_dequeue_complete(sc, qh)) == NULL) 2244 break; 2245 ciss_unmap_request(cr); 2246 2247 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 2248 ciss_printf(sc, "WARNING: completing non-busy request\n"); 2249 cr->cr_flags &= ~CISS_REQ_BUSY; 2250 2251 /* 2252 * If the request has a callback, invoke it. 2253 */ 2254 if (cr->cr_complete != NULL) { 2255 cr->cr_complete(cr); 2256 continue; 2257 } 2258 2259 /* 2260 * If someone is sleeping on this request, wake them up. 2261 */ 2262 if (cr->cr_flags & CISS_REQ_SLEEP) { 2263 cr->cr_flags &= ~CISS_REQ_SLEEP; 2264 wakeup(cr); 2265 continue; 2266 } 2267 2268 /* 2269 * If someone is polling this request for completion, signal. 2270 */ 2271 if (cr->cr_flags & CISS_REQ_POLL) { 2272 cr->cr_flags &= ~CISS_REQ_POLL; 2273 continue; 2274 } 2275 2276 /* 2277 * Give up and throw the request back on the free queue. This 2278 * should never happen; resources will probably be lost. 2279 */ 2280 ciss_printf(sc, "WARNING: completed command with no submitter\n"); 2281 ciss_enqueue_free(cr); 2282 } 2283 } 2284 2285 /************************************************************************ 2286 * Report on the completion status of a request, and pass back SCSI 2287 * and command status values. 2288 */ 2289 static int 2290 _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func) 2291 { 2292 struct ciss_command *cc; 2293 struct ciss_error_info *ce; 2294 2295 debug_called(2); 2296 2297 cc = cr->cr_cc; 2298 ce = (struct ciss_error_info *)&(cc->sg[0]); 2299 2300 /* 2301 * We don't consider data under/overrun an error for the Report 2302 * Logical/Physical LUNs commands. 2303 */ 2304 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) && 2305 ((ce->command_status == CISS_CMD_STATUS_DATA_OVERRUN) || 2306 (ce->command_status == CISS_CMD_STATUS_DATA_UNDERRUN)) && 2307 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) || 2308 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS) || 2309 (cc->cdb.cdb[0] == INQUIRY))) { 2310 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR; 2311 debug(2, "ignoring irrelevant under/overrun error"); 2312 } 2313 2314 /* 2315 * Check the command's error bit, if clear, there's no status and 2316 * everything is OK. 2317 */ 2318 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) { 2319 if (scsi_status != NULL) 2320 *scsi_status = SCSI_STATUS_OK; 2321 if (command_status != NULL) 2322 *command_status = CISS_CMD_STATUS_SUCCESS; 2323 return(0); 2324 } else { 2325 if (command_status != NULL) 2326 *command_status = ce->command_status; 2327 if (scsi_status != NULL) { 2328 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) { 2329 *scsi_status = ce->scsi_status; 2330 } else { 2331 *scsi_status = -1; 2332 } 2333 } 2334 if (bootverbose) 2335 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n", 2336 ce->command_status, ciss_name_command_status(ce->command_status), 2337 ce->scsi_status); 2338 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) { 2339 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x, function %s\n", 2340 ce->additional_error_info.invalid_command.offense_size, 2341 ce->additional_error_info.invalid_command.offense_offset, 2342 ce->additional_error_info.invalid_command.offense_value, 2343 func); 2344 } 2345 } 2346 #if 0 2347 ciss_print_request(cr); 2348 #endif 2349 return(1); 2350 } 2351 2352 /************************************************************************ 2353 * Issue a request and don't return until it's completed. 2354 * 2355 * Depending on adapter status, we may poll or sleep waiting for 2356 * completion. 2357 */ 2358 static int 2359 ciss_synch_request(struct ciss_request *cr, int timeout) 2360 { 2361 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) { 2362 return(ciss_wait_request(cr, timeout)); 2363 } else { 2364 return(ciss_poll_request(cr, timeout)); 2365 } 2366 } 2367 2368 /************************************************************************ 2369 * Issue a request and poll for completion. 2370 * 2371 * Timeout in milliseconds. 2372 */ 2373 static int 2374 ciss_poll_request(struct ciss_request *cr, int timeout) 2375 { 2376 cr_qhead_t qh; 2377 struct ciss_softc *sc; 2378 int error; 2379 2380 debug_called(2); 2381 2382 STAILQ_INIT(&qh); 2383 sc = cr->cr_sc; 2384 cr->cr_flags |= CISS_REQ_POLL; 2385 if ((error = ciss_start(cr)) != 0) 2386 return(error); 2387 2388 do { 2389 if (sc->ciss_perf) 2390 ciss_perf_done(sc, &qh); 2391 else 2392 ciss_done(sc, &qh); 2393 ciss_complete(sc, &qh); 2394 if (!(cr->cr_flags & CISS_REQ_POLL)) 2395 return(0); 2396 DELAY(1000); 2397 } while (timeout-- >= 0); 2398 return(EWOULDBLOCK); 2399 } 2400 2401 /************************************************************************ 2402 * Issue a request and sleep waiting for completion. 2403 * 2404 * Timeout in milliseconds. Note that a spurious wakeup will reset 2405 * the timeout. 2406 */ 2407 static int 2408 ciss_wait_request(struct ciss_request *cr, int timeout) 2409 { 2410 int error; 2411 2412 debug_called(2); 2413 2414 cr->cr_flags |= CISS_REQ_SLEEP; 2415 if ((error = ciss_start(cr)) != 0) 2416 return(error); 2417 2418 while ((cr->cr_flags & CISS_REQ_SLEEP) && (error != EWOULDBLOCK)) { 2419 error = msleep_sbt(cr, &cr->cr_sc->ciss_mtx, PRIBIO, "cissREQ", 2420 SBT_1MS * timeout, 0, 0); 2421 } 2422 return(error); 2423 } 2424 2425 #if 0 2426 /************************************************************************ 2427 * Abort a request. Note that a potential exists here to race the 2428 * request being completed; the caller must deal with this. 2429 */ 2430 static int 2431 ciss_abort_request(struct ciss_request *ar) 2432 { 2433 struct ciss_request *cr; 2434 struct ciss_command *cc; 2435 struct ciss_message_cdb *cmc; 2436 int error; 2437 2438 debug_called(1); 2439 2440 /* get a request */ 2441 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0) 2442 return(error); 2443 2444 /* build the abort command */ 2445 cc = cr->cr_cc; 2446 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */ 2447 cc->header.address.physical.target = 0; 2448 cc->header.address.physical.bus = 0; 2449 cc->cdb.cdb_length = sizeof(*cmc); 2450 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 2451 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2452 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2453 cc->cdb.timeout = 30; 2454 2455 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]); 2456 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT; 2457 cmc->type = CISS_MESSAGE_ABORT_TASK; 2458 cmc->abort_tag = ar->cr_tag; /* endianness?? */ 2459 2460 /* 2461 * Send the request and wait for a response. If we believe we 2462 * aborted the request OK, clear the flag that indicates it's 2463 * running. 2464 */ 2465 error = ciss_synch_request(cr, 35 * 1000); 2466 if (!error) 2467 error = ciss_report_request(cr, NULL, NULL); 2468 ciss_release_request(cr); 2469 2470 return(error); 2471 } 2472 #endif 2473 2474 2475 /************************************************************************ 2476 * Fetch and initialise a request 2477 */ 2478 static int 2479 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp) 2480 { 2481 struct ciss_request *cr; 2482 2483 debug_called(2); 2484 2485 /* 2486 * Get a request and clean it up. 2487 */ 2488 if ((cr = ciss_dequeue_free(sc)) == NULL) 2489 return(ENOMEM); 2490 2491 cr->cr_data = NULL; 2492 cr->cr_flags = 0; 2493 cr->cr_complete = NULL; 2494 cr->cr_private = NULL; 2495 cr->cr_sg_tag = CISS_SG_MAX; /* Backstop to prevent accidents */ 2496 2497 ciss_preen_command(cr); 2498 *crp = cr; 2499 return(0); 2500 } 2501 2502 static void 2503 ciss_preen_command(struct ciss_request *cr) 2504 { 2505 struct ciss_command *cc; 2506 u_int32_t cmdphys; 2507 2508 /* 2509 * Clean up the command structure. 2510 * 2511 * Note that we set up the error_info structure here, since the 2512 * length can be overwritten by any command. 2513 */ 2514 cc = cr->cr_cc; 2515 cc->header.sg_in_list = 0; /* kinda inefficient this way */ 2516 cc->header.sg_total = 0; 2517 cc->header.host_tag = cr->cr_tag << 2; 2518 cc->header.host_tag_zeroes = 0; 2519 bzero(&(cc->sg[0]), CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command)); 2520 cmdphys = cr->cr_ccphys; 2521 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command); 2522 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command); 2523 } 2524 2525 /************************************************************************ 2526 * Release a request to the free list. 2527 */ 2528 static void 2529 ciss_release_request(struct ciss_request *cr) 2530 { 2531 struct ciss_softc *sc; 2532 2533 debug_called(2); 2534 2535 sc = cr->cr_sc; 2536 2537 /* release the request to the free queue */ 2538 ciss_requeue_free(cr); 2539 } 2540 2541 /************************************************************************ 2542 * Allocate a request that will be used to send a BMIC command. Do some 2543 * of the common setup here to avoid duplicating it everywhere else. 2544 */ 2545 static int 2546 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 2547 int opcode, void **bufp, size_t bufsize) 2548 { 2549 struct ciss_request *cr; 2550 struct ciss_command *cc; 2551 struct ciss_bmic_cdb *cbc; 2552 void *buf; 2553 int error; 2554 int dataout; 2555 2556 debug_called(2); 2557 2558 cr = NULL; 2559 buf = NULL; 2560 2561 /* 2562 * Get a request. 2563 */ 2564 if ((error = ciss_get_request(sc, &cr)) != 0) 2565 goto out; 2566 2567 /* 2568 * Allocate data storage if requested, determine the data direction. 2569 */ 2570 dataout = 0; 2571 if ((bufsize > 0) && (bufp != NULL)) { 2572 if (*bufp == NULL) { 2573 if ((buf = malloc(bufsize, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 2574 error = ENOMEM; 2575 goto out; 2576 } 2577 } else { 2578 buf = *bufp; 2579 dataout = 1; /* we are given a buffer, so we are writing */ 2580 } 2581 } 2582 2583 /* 2584 * Build a CISS BMIC command to get the logical drive ID. 2585 */ 2586 cr->cr_data = buf; 2587 cr->cr_length = bufsize; 2588 if (!dataout) 2589 cr->cr_flags = CISS_REQ_DATAIN; 2590 2591 cc = cr->cr_cc; 2592 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2593 cc->header.address.physical.bus = 0; 2594 cc->header.address.physical.target = 0; 2595 cc->cdb.cdb_length = sizeof(*cbc); 2596 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2597 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2598 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ; 2599 cc->cdb.timeout = 0; 2600 2601 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 2602 bzero(cbc, sizeof(*cbc)); 2603 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ; 2604 cbc->bmic_opcode = opcode; 2605 cbc->size = htons((u_int16_t)bufsize); 2606 2607 out: 2608 if (error) { 2609 if (cr != NULL) 2610 ciss_release_request(cr); 2611 } else { 2612 *crp = cr; 2613 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 2614 *bufp = buf; 2615 } 2616 return(error); 2617 } 2618 2619 /************************************************************************ 2620 * Handle a command passed in from userspace. 2621 */ 2622 static int 2623 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc) 2624 { 2625 struct ciss_request *cr; 2626 struct ciss_command *cc; 2627 struct ciss_error_info *ce; 2628 int error = 0; 2629 2630 debug_called(1); 2631 2632 cr = NULL; 2633 2634 /* 2635 * Get a request. 2636 */ 2637 while (ciss_get_request(sc, &cr) != 0) 2638 msleep(sc, &sc->ciss_mtx, PPAUSE, "cissREQ", hz); 2639 cc = cr->cr_cc; 2640 2641 /* 2642 * Allocate an in-kernel databuffer if required, copy in user data. 2643 */ 2644 mtx_unlock(&sc->ciss_mtx); 2645 cr->cr_length = ioc->buf_size; 2646 if (ioc->buf_size > 0) { 2647 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 2648 error = ENOMEM; 2649 goto out_unlocked; 2650 } 2651 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) { 2652 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2653 goto out_unlocked; 2654 } 2655 } 2656 2657 /* 2658 * Build the request based on the user command. 2659 */ 2660 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address)); 2661 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb)); 2662 2663 /* XXX anything else to populate here? */ 2664 mtx_lock(&sc->ciss_mtx); 2665 2666 /* 2667 * Run the command. 2668 */ 2669 if ((error = ciss_synch_request(cr, 60 * 1000))) { 2670 debug(0, "request failed - %d", error); 2671 goto out; 2672 } 2673 2674 /* 2675 * Check to see if the command succeeded. 2676 */ 2677 ce = (struct ciss_error_info *)&(cc->sg[0]); 2678 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) == 0) 2679 bzero(ce, sizeof(*ce)); 2680 2681 /* 2682 * Copy the results back to the user. 2683 */ 2684 bcopy(ce, &ioc->error_info, sizeof(*ce)); 2685 mtx_unlock(&sc->ciss_mtx); 2686 if ((ioc->buf_size > 0) && 2687 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) { 2688 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2689 goto out_unlocked; 2690 } 2691 2692 /* done OK */ 2693 error = 0; 2694 2695 out_unlocked: 2696 mtx_lock(&sc->ciss_mtx); 2697 2698 out: 2699 if ((cr != NULL) && (cr->cr_data != NULL)) 2700 free(cr->cr_data, CISS_MALLOC_CLASS); 2701 if (cr != NULL) 2702 ciss_release_request(cr); 2703 return(error); 2704 } 2705 2706 /************************************************************************ 2707 * Map a request into bus-visible space, initialise the scatter/gather 2708 * list. 2709 */ 2710 static int 2711 ciss_map_request(struct ciss_request *cr) 2712 { 2713 struct ciss_softc *sc; 2714 int error = 0; 2715 2716 debug_called(2); 2717 2718 sc = cr->cr_sc; 2719 2720 /* check that mapping is necessary */ 2721 if (cr->cr_flags & CISS_REQ_MAPPED) 2722 return(0); 2723 2724 cr->cr_flags |= CISS_REQ_MAPPED; 2725 2726 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2727 BUS_DMASYNC_PREWRITE); 2728 2729 if (cr->cr_data != NULL) { 2730 if (cr->cr_flags & CISS_REQ_CCB) 2731 error = bus_dmamap_load_ccb(sc->ciss_buffer_dmat, 2732 cr->cr_datamap, cr->cr_data, 2733 ciss_request_map_helper, cr, 0); 2734 else 2735 error = bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, 2736 cr->cr_data, cr->cr_length, 2737 ciss_request_map_helper, cr, 0); 2738 if (error != 0) 2739 return (error); 2740 } else { 2741 /* 2742 * Post the command to the adapter. 2743 */ 2744 cr->cr_sg_tag = CISS_SG_NONE; 2745 cr->cr_flags |= CISS_REQ_BUSY; 2746 if (sc->ciss_perf) 2747 CISS_TL_PERF_POST_CMD(sc, cr); 2748 else 2749 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys); 2750 } 2751 2752 return(0); 2753 } 2754 2755 static void 2756 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2757 { 2758 struct ciss_command *cc; 2759 struct ciss_request *cr; 2760 struct ciss_softc *sc; 2761 int i; 2762 2763 debug_called(2); 2764 2765 cr = (struct ciss_request *)arg; 2766 sc = cr->cr_sc; 2767 cc = cr->cr_cc; 2768 2769 for (i = 0; i < nseg; i++) { 2770 cc->sg[i].address = segs[i].ds_addr; 2771 cc->sg[i].length = segs[i].ds_len; 2772 cc->sg[i].extension = 0; 2773 } 2774 /* we leave the s/g table entirely within the command */ 2775 cc->header.sg_in_list = nseg; 2776 cc->header.sg_total = nseg; 2777 2778 if (cr->cr_flags & CISS_REQ_DATAIN) 2779 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD); 2780 if (cr->cr_flags & CISS_REQ_DATAOUT) 2781 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE); 2782 2783 if (nseg == 0) 2784 cr->cr_sg_tag = CISS_SG_NONE; 2785 else if (nseg == 1) 2786 cr->cr_sg_tag = CISS_SG_1; 2787 else if (nseg == 2) 2788 cr->cr_sg_tag = CISS_SG_2; 2789 else if (nseg <= 4) 2790 cr->cr_sg_tag = CISS_SG_4; 2791 else if (nseg <= 8) 2792 cr->cr_sg_tag = CISS_SG_8; 2793 else if (nseg <= 16) 2794 cr->cr_sg_tag = CISS_SG_16; 2795 else if (nseg <= 32) 2796 cr->cr_sg_tag = CISS_SG_32; 2797 else 2798 cr->cr_sg_tag = CISS_SG_MAX; 2799 2800 /* 2801 * Post the command to the adapter. 2802 */ 2803 cr->cr_flags |= CISS_REQ_BUSY; 2804 if (sc->ciss_perf) 2805 CISS_TL_PERF_POST_CMD(sc, cr); 2806 else 2807 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys); 2808 } 2809 2810 /************************************************************************ 2811 * Unmap a request from bus-visible space. 2812 */ 2813 static void 2814 ciss_unmap_request(struct ciss_request *cr) 2815 { 2816 struct ciss_softc *sc; 2817 2818 debug_called(2); 2819 2820 sc = cr->cr_sc; 2821 2822 /* check that unmapping is necessary */ 2823 if ((cr->cr_flags & CISS_REQ_MAPPED) == 0) 2824 return; 2825 2826 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2827 BUS_DMASYNC_POSTWRITE); 2828 2829 if (cr->cr_data == NULL) 2830 goto out; 2831 2832 if (cr->cr_flags & CISS_REQ_DATAIN) 2833 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD); 2834 if (cr->cr_flags & CISS_REQ_DATAOUT) 2835 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE); 2836 2837 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap); 2838 out: 2839 cr->cr_flags &= ~CISS_REQ_MAPPED; 2840 } 2841 2842 /************************************************************************ 2843 * Attach the driver to CAM. 2844 * 2845 * We put all the logical drives on a single SCSI bus. 2846 */ 2847 static int 2848 ciss_cam_init(struct ciss_softc *sc) 2849 { 2850 int i, maxbus; 2851 2852 debug_called(1); 2853 2854 /* 2855 * Allocate a devq. We can reuse this for the masked physical 2856 * devices if we decide to export these as well. 2857 */ 2858 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests - 2)) == NULL) { 2859 ciss_printf(sc, "can't allocate CAM SIM queue\n"); 2860 return(ENOMEM); 2861 } 2862 2863 /* 2864 * Create a SIM. 2865 * 2866 * This naturally wastes a bit of memory. The alternative is to allocate 2867 * and register each bus as it is found, and then track them on a linked 2868 * list. Unfortunately, the driver has a few places where it needs to 2869 * look up the SIM based solely on bus number, and it's unclear whether 2870 * a list traversal would work for these situations. 2871 */ 2872 maxbus = max(sc->ciss_max_logical_bus, sc->ciss_max_physical_bus + 2873 CISS_PHYSICAL_BASE); 2874 sc->ciss_cam_sim = malloc(maxbus * sizeof(struct cam_sim*), 2875 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 2876 if (sc->ciss_cam_sim == NULL) { 2877 ciss_printf(sc, "can't allocate memory for controller SIM\n"); 2878 return(ENOMEM); 2879 } 2880 2881 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 2882 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2883 "ciss", sc, 2884 device_get_unit(sc->ciss_dev), 2885 &sc->ciss_mtx, 2886 2, 2887 sc->ciss_max_requests - 2, 2888 sc->ciss_cam_devq)) == NULL) { 2889 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2890 return(ENOMEM); 2891 } 2892 2893 /* 2894 * Register bus with this SIM. 2895 */ 2896 mtx_lock(&sc->ciss_mtx); 2897 if (i == 0 || sc->ciss_controllers[i].physical.bus != 0) { 2898 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) { 2899 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2900 mtx_unlock(&sc->ciss_mtx); 2901 return (ENXIO); 2902 } 2903 } 2904 mtx_unlock(&sc->ciss_mtx); 2905 } 2906 2907 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2908 CISS_PHYSICAL_BASE; i++) { 2909 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2910 "ciss", sc, 2911 device_get_unit(sc->ciss_dev), 2912 &sc->ciss_mtx, 1, 2913 sc->ciss_max_requests - 2, 2914 sc->ciss_cam_devq)) == NULL) { 2915 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2916 return (ENOMEM); 2917 } 2918 2919 mtx_lock(&sc->ciss_mtx); 2920 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) { 2921 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2922 mtx_unlock(&sc->ciss_mtx); 2923 return (ENXIO); 2924 } 2925 mtx_unlock(&sc->ciss_mtx); 2926 } 2927 2928 return(0); 2929 } 2930 2931 /************************************************************************ 2932 * Initiate a rescan of the 'logical devices' SIM 2933 */ 2934 static void 2935 ciss_cam_rescan_target(struct ciss_softc *sc, int bus, int target) 2936 { 2937 union ccb *ccb; 2938 2939 debug_called(1); 2940 2941 if ((ccb = xpt_alloc_ccb_nowait()) == NULL) { 2942 ciss_printf(sc, "rescan failed (can't allocate CCB)\n"); 2943 return; 2944 } 2945 2946 if (xpt_create_path(&ccb->ccb_h.path, NULL, 2947 cam_sim_path(sc->ciss_cam_sim[bus]), 2948 target, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 2949 ciss_printf(sc, "rescan failed (can't create path)\n"); 2950 xpt_free_ccb(ccb); 2951 return; 2952 } 2953 xpt_rescan(ccb); 2954 /* scan is now in progress */ 2955 } 2956 2957 /************************************************************************ 2958 * Handle requests coming from CAM 2959 */ 2960 static void 2961 ciss_cam_action(struct cam_sim *sim, union ccb *ccb) 2962 { 2963 struct ciss_softc *sc; 2964 struct ccb_scsiio *csio; 2965 int bus, target; 2966 int physical; 2967 2968 sc = cam_sim_softc(sim); 2969 bus = cam_sim_bus(sim); 2970 csio = (struct ccb_scsiio *)&ccb->csio; 2971 target = csio->ccb_h.target_id; 2972 physical = CISS_IS_PHYSICAL(bus); 2973 2974 switch (ccb->ccb_h.func_code) { 2975 2976 /* perform SCSI I/O */ 2977 case XPT_SCSI_IO: 2978 if (!ciss_cam_action_io(sim, csio)) 2979 return; 2980 break; 2981 2982 /* perform geometry calculations */ 2983 case XPT_CALC_GEOMETRY: 2984 { 2985 struct ccb_calc_geometry *ccg = &ccb->ccg; 2986 struct ciss_ldrive *ld; 2987 2988 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2989 2990 ld = NULL; 2991 if (!physical) 2992 ld = &sc->ciss_logical[bus][target]; 2993 2994 /* 2995 * Use the cached geometry settings unless the fault tolerance 2996 * is invalid. 2997 */ 2998 if (physical || ld->cl_geometry.fault_tolerance == 0xFF) { 2999 u_int32_t secs_per_cylinder; 3000 3001 ccg->heads = 255; 3002 ccg->secs_per_track = 32; 3003 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 3004 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 3005 } else { 3006 ccg->heads = ld->cl_geometry.heads; 3007 ccg->secs_per_track = ld->cl_geometry.sectors; 3008 ccg->cylinders = ntohs(ld->cl_geometry.cylinders); 3009 } 3010 ccb->ccb_h.status = CAM_REQ_CMP; 3011 break; 3012 } 3013 3014 /* handle path attribute inquiry */ 3015 case XPT_PATH_INQ: 3016 { 3017 struct ccb_pathinq *cpi = &ccb->cpi; 3018 int sg_length; 3019 3020 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 3021 3022 cpi->version_num = 1; 3023 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */ 3024 cpi->target_sprt = 0; 3025 cpi->hba_misc = 0; 3026 cpi->max_target = sc->ciss_cfg->max_logical_supported; 3027 cpi->max_lun = 0; /* 'logical drive' channel only */ 3028 cpi->initiator_id = sc->ciss_cfg->max_logical_supported; 3029 strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 3030 strlcpy(cpi->hba_vid, "CISS", HBA_IDLEN); 3031 strlcpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 3032 cpi->unit_number = cam_sim_unit(sim); 3033 cpi->bus_id = cam_sim_bus(sim); 3034 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */ 3035 cpi->transport = XPORT_SPI; 3036 cpi->transport_version = 2; 3037 cpi->protocol = PROTO_SCSI; 3038 cpi->protocol_version = SCSI_REV_2; 3039 if (sc->ciss_cfg->max_sg_length == 0) { 3040 sg_length = 17; 3041 } else { 3042 /* XXX Fix for ZMR cards that advertise max_sg_length == 32 3043 * Confusing bit here. max_sg_length is usually a power of 2. We always 3044 * need to subtract 1 to account for partial pages. Then we need to 3045 * align on a valid PAGE_SIZE so we round down to the nearest power of 2. 3046 * Add 1 so we can then subtract it out in the assignment to maxio. 3047 * The reason for all these shenanigans is to create a maxio value that 3048 * creates IO operations to volumes that yield consistent operations 3049 * with good performance. 3050 */ 3051 sg_length = sc->ciss_cfg->max_sg_length - 1; 3052 sg_length = (1 << (fls(sg_length) - 1)) + 1; 3053 } 3054 cpi->maxio = (min(CISS_MAX_SG_ELEMENTS, sg_length) - 1) * PAGE_SIZE; 3055 ccb->ccb_h.status = CAM_REQ_CMP; 3056 break; 3057 } 3058 3059 case XPT_GET_TRAN_SETTINGS: 3060 { 3061 struct ccb_trans_settings *cts = &ccb->cts; 3062 int bus, target; 3063 struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi; 3064 struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi; 3065 3066 bus = cam_sim_bus(sim); 3067 target = cts->ccb_h.target_id; 3068 3069 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target); 3070 /* disconnect always OK */ 3071 cts->protocol = PROTO_SCSI; 3072 cts->protocol_version = SCSI_REV_2; 3073 cts->transport = XPORT_SPI; 3074 cts->transport_version = 2; 3075 3076 spi->valid = CTS_SPI_VALID_DISC; 3077 spi->flags = CTS_SPI_FLAGS_DISC_ENB; 3078 3079 scsi->valid = CTS_SCSI_VALID_TQ; 3080 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB; 3081 3082 cts->ccb_h.status = CAM_REQ_CMP; 3083 break; 3084 } 3085 3086 default: /* we can't do this */ 3087 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code); 3088 ccb->ccb_h.status = CAM_REQ_INVALID; 3089 break; 3090 } 3091 3092 xpt_done(ccb); 3093 } 3094 3095 /************************************************************************ 3096 * Handle a CAM SCSI I/O request. 3097 */ 3098 static int 3099 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio) 3100 { 3101 struct ciss_softc *sc; 3102 int bus, target; 3103 struct ciss_request *cr; 3104 struct ciss_command *cc; 3105 int error; 3106 3107 sc = cam_sim_softc(sim); 3108 bus = cam_sim_bus(sim); 3109 target = csio->ccb_h.target_id; 3110 3111 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun); 3112 3113 /* check that the CDB pointer is not to a physical address */ 3114 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) { 3115 debug(3, " CDB pointer is to physical address"); 3116 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3117 } 3118 3119 /* abandon aborted ccbs or those that have failed validation */ 3120 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 3121 debug(3, "abandoning CCB due to abort/validation failure"); 3122 return(EINVAL); 3123 } 3124 3125 /* handle emulation of some SCSI commands ourself */ 3126 if (ciss_cam_emulate(sc, csio)) 3127 return(0); 3128 3129 /* 3130 * Get a request to manage this command. If we can't, return the 3131 * ccb, freeze the queue and flag so that we unfreeze it when a 3132 * request completes. 3133 */ 3134 if ((error = ciss_get_request(sc, &cr)) != 0) { 3135 xpt_freeze_simq(sim, 1); 3136 sc->ciss_flags |= CISS_FLAG_BUSY; 3137 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3138 return(error); 3139 } 3140 3141 /* 3142 * Build the command. 3143 */ 3144 cc = cr->cr_cc; 3145 cr->cr_data = csio; 3146 cr->cr_length = csio->dxfer_len; 3147 cr->cr_complete = ciss_cam_complete; 3148 cr->cr_private = csio; 3149 3150 /* 3151 * Target the right logical volume. 3152 */ 3153 if (CISS_IS_PHYSICAL(bus)) 3154 cc->header.address = 3155 sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_address; 3156 else 3157 cc->header.address = 3158 sc->ciss_logical[bus][target].cl_address; 3159 cc->cdb.cdb_length = csio->cdb_len; 3160 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3161 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */ 3162 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 3163 cr->cr_flags = CISS_REQ_DATAOUT | CISS_REQ_CCB; 3164 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3165 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 3166 cr->cr_flags = CISS_REQ_DATAIN | CISS_REQ_CCB; 3167 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3168 } else { 3169 cr->cr_data = NULL; 3170 cr->cr_flags = 0; 3171 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 3172 } 3173 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1; 3174 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 3175 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len); 3176 } else { 3177 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len); 3178 } 3179 3180 /* 3181 * Submit the request to the adapter. 3182 * 3183 * Note that this may fail if we're unable to map the request (and 3184 * if we ever learn a transport layer other than simple, may fail 3185 * if the adapter rejects the command). 3186 */ 3187 if ((error = ciss_start(cr)) != 0) { 3188 xpt_freeze_simq(sim, 1); 3189 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3190 if (error == EINPROGRESS) { 3191 error = 0; 3192 } else { 3193 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3194 ciss_release_request(cr); 3195 } 3196 return(error); 3197 } 3198 3199 return(0); 3200 } 3201 3202 /************************************************************************ 3203 * Emulate SCSI commands the adapter doesn't handle as we might like. 3204 */ 3205 static int 3206 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio) 3207 { 3208 int bus, target; 3209 u_int8_t opcode; 3210 3211 target = csio->ccb_h.target_id; 3212 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3213 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 3214 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]; 3215 3216 if (CISS_IS_PHYSICAL(bus)) { 3217 if (sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_online != 1) { 3218 csio->ccb_h.status |= CAM_SEL_TIMEOUT; 3219 xpt_done((union ccb *)csio); 3220 return(1); 3221 } else 3222 return(0); 3223 } 3224 3225 /* 3226 * Handle requests for volumes that don't exist or are not online. 3227 * A selection timeout is slightly better than an illegal request. 3228 * Other errors might be better. 3229 */ 3230 if (sc->ciss_logical[bus][target].cl_status != CISS_LD_ONLINE) { 3231 csio->ccb_h.status |= CAM_SEL_TIMEOUT; 3232 xpt_done((union ccb *)csio); 3233 return(1); 3234 } 3235 3236 /* if we have to fake Synchronise Cache */ 3237 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) { 3238 /* 3239 * If this is a Synchronise Cache command, typically issued when 3240 * a device is closed, flush the adapter and complete now. 3241 */ 3242 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 3243 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) { 3244 ciss_flush_adapter(sc); 3245 csio->ccb_h.status |= CAM_REQ_CMP; 3246 xpt_done((union ccb *)csio); 3247 return(1); 3248 } 3249 } 3250 3251 /* 3252 * A CISS target can only ever have one lun per target. REPORT_LUNS requires 3253 * at least one LUN field to be pre created for us, so snag it and fill in 3254 * the least significant byte indicating 1 LUN here. Emulate the command 3255 * return to shut up warning on console of a CDB error. swb 3256 */ 3257 if (opcode == REPORT_LUNS && csio->dxfer_len > 0) { 3258 csio->data_ptr[3] = 8; 3259 csio->ccb_h.status |= CAM_REQ_CMP; 3260 xpt_done((union ccb *)csio); 3261 return(1); 3262 } 3263 3264 return(0); 3265 } 3266 3267 /************************************************************************ 3268 * Check for possibly-completed commands. 3269 */ 3270 static void 3271 ciss_cam_poll(struct cam_sim *sim) 3272 { 3273 cr_qhead_t qh; 3274 struct ciss_softc *sc = cam_sim_softc(sim); 3275 3276 debug_called(2); 3277 3278 STAILQ_INIT(&qh); 3279 if (sc->ciss_perf) 3280 ciss_perf_done(sc, &qh); 3281 else 3282 ciss_done(sc, &qh); 3283 ciss_complete(sc, &qh); 3284 } 3285 3286 /************************************************************************ 3287 * Handle completion of a command - pass results back through the CCB 3288 */ 3289 static void 3290 ciss_cam_complete(struct ciss_request *cr) 3291 { 3292 struct ciss_softc *sc; 3293 struct ciss_command *cc; 3294 struct ciss_error_info *ce; 3295 struct ccb_scsiio *csio; 3296 int scsi_status; 3297 int command_status; 3298 3299 debug_called(2); 3300 3301 sc = cr->cr_sc; 3302 cc = cr->cr_cc; 3303 ce = (struct ciss_error_info *)&(cc->sg[0]); 3304 csio = (struct ccb_scsiio *)cr->cr_private; 3305 3306 /* 3307 * Extract status values from request. 3308 */ 3309 ciss_report_request(cr, &command_status, &scsi_status); 3310 csio->scsi_status = scsi_status; 3311 3312 /* 3313 * Handle specific SCSI status values. 3314 */ 3315 switch(scsi_status) { 3316 /* no status due to adapter error */ 3317 case -1: 3318 debug(0, "adapter error"); 3319 csio->ccb_h.status |= CAM_REQ_CMP_ERR; 3320 break; 3321 3322 /* no status due to command completed OK */ 3323 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */ 3324 debug(2, "SCSI_STATUS_OK"); 3325 csio->ccb_h.status |= CAM_REQ_CMP; 3326 break; 3327 3328 /* check condition, sense data included */ 3329 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */ 3330 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d\n", 3331 ce->sense_length, ce->residual_count); 3332 bzero(&csio->sense_data, SSD_FULL_SIZE); 3333 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length); 3334 if (csio->sense_len > ce->sense_length) 3335 csio->sense_resid = csio->sense_len - ce->sense_length; 3336 else 3337 csio->sense_resid = 0; 3338 csio->resid = ce->residual_count; 3339 csio->ccb_h.status |= CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 3340 #ifdef CISS_DEBUG 3341 { 3342 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0]; 3343 debug(0, "sense key %x", scsi_get_sense_key(sns, csio->sense_len - 3344 csio->sense_resid, /*show_errors*/ 1)); 3345 } 3346 #endif 3347 break; 3348 3349 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */ 3350 debug(0, "SCSI_STATUS_BUSY"); 3351 csio->ccb_h.status |= CAM_SCSI_BUSY; 3352 break; 3353 3354 default: 3355 debug(0, "unknown status 0x%x", csio->scsi_status); 3356 csio->ccb_h.status |= CAM_REQ_CMP_ERR; 3357 break; 3358 } 3359 3360 /* handle post-command fixup */ 3361 ciss_cam_complete_fixup(sc, csio); 3362 3363 ciss_release_request(cr); 3364 if (sc->ciss_flags & CISS_FLAG_BUSY) { 3365 sc->ciss_flags &= ~CISS_FLAG_BUSY; 3366 if (csio->ccb_h.status & CAM_RELEASE_SIMQ) 3367 xpt_release_simq(xpt_path_sim(csio->ccb_h.path), 0); 3368 else 3369 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3370 } 3371 xpt_done((union ccb *)csio); 3372 } 3373 3374 /******************************************************************************** 3375 * Fix up the result of some commands here. 3376 */ 3377 static void 3378 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio) 3379 { 3380 struct scsi_inquiry_data *inq; 3381 struct ciss_ldrive *cl; 3382 uint8_t *cdb; 3383 int bus, target; 3384 3385 cdb = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 3386 (uint8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes; 3387 if (cdb[0] == INQUIRY && 3388 (cdb[1] & SI_EVPD) == 0 && 3389 (csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN && 3390 csio->dxfer_len >= SHORT_INQUIRY_LENGTH) { 3391 3392 inq = (struct scsi_inquiry_data *)csio->data_ptr; 3393 target = csio->ccb_h.target_id; 3394 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3395 3396 /* 3397 * If the controller is in JBOD mode, there are no logical volumes. 3398 * Let the disks be probed and dealt with via CAM. Else, mask off 3399 * the physical disks and setup the parts of the inq structure for 3400 * the logical volume. swb 3401 */ 3402 if( !(sc->ciss_id->PowerUPNvramFlags & PWR_UP_FLAG_JBOD_ENABLED)){ 3403 if (CISS_IS_PHYSICAL(bus)) { 3404 if (SID_TYPE(inq) == T_DIRECT) 3405 inq->device = (inq->device & 0xe0) | T_NODEVICE; 3406 return; 3407 } 3408 cl = &sc->ciss_logical[bus][target]; 3409 3410 padstr(inq->vendor, "HP", 3411 SID_VENDOR_SIZE); 3412 padstr(inq->product, 3413 ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 3414 SID_PRODUCT_SIZE); 3415 padstr(inq->revision, 3416 ciss_name_ldrive_status(cl->cl_lstatus->status), 3417 SID_REVISION_SIZE); 3418 } 3419 } 3420 } 3421 3422 3423 /******************************************************************************** 3424 * Name the device at (target) 3425 * 3426 * XXX is this strictly correct? 3427 */ 3428 static int 3429 ciss_name_device(struct ciss_softc *sc, int bus, int target) 3430 { 3431 struct cam_periph *periph; 3432 struct cam_path *path; 3433 int status; 3434 3435 if (CISS_IS_PHYSICAL(bus)) 3436 return (0); 3437 3438 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim[bus]), 3439 target, 0); 3440 3441 if (status == CAM_REQ_CMP) { 3442 xpt_path_lock(path); 3443 periph = cam_periph_find(path, NULL); 3444 xpt_path_unlock(path); 3445 xpt_free_path(path); 3446 if (periph != NULL) { 3447 sprintf(sc->ciss_logical[bus][target].cl_name, "%s%d", 3448 periph->periph_name, periph->unit_number); 3449 return(0); 3450 } 3451 } 3452 sc->ciss_logical[bus][target].cl_name[0] = 0; 3453 return(ENOENT); 3454 } 3455 3456 /************************************************************************ 3457 * Periodic status monitoring. 3458 */ 3459 static void 3460 ciss_periodic(void *arg) 3461 { 3462 struct ciss_softc *sc; 3463 struct ciss_request *cr = NULL; 3464 struct ciss_command *cc = NULL; 3465 int error = 0; 3466 3467 debug_called(1); 3468 3469 sc = (struct ciss_softc *)arg; 3470 3471 /* 3472 * Check the adapter heartbeat. 3473 */ 3474 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) { 3475 sc->ciss_heart_attack++; 3476 debug(0, "adapter heart attack in progress 0x%x/%d", 3477 sc->ciss_heartbeat, sc->ciss_heart_attack); 3478 if (sc->ciss_heart_attack == 3) { 3479 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n"); 3480 ciss_disable_adapter(sc); 3481 return; 3482 } 3483 } else { 3484 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat; 3485 sc->ciss_heart_attack = 0; 3486 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat); 3487 } 3488 3489 /* 3490 * Send the NOP message and wait for a response. 3491 */ 3492 if (ciss_nop_message_heartbeat != 0 && (error = ciss_get_request(sc, &cr)) == 0) { 3493 cc = cr->cr_cc; 3494 cr->cr_complete = ciss_nop_complete; 3495 cc->cdb.cdb_length = 1; 3496 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 3497 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3498 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3499 cc->cdb.timeout = 0; 3500 cc->cdb.cdb[0] = CISS_OPCODE_MESSAGE_NOP; 3501 3502 if ((error = ciss_start(cr)) != 0) { 3503 ciss_printf(sc, "SENDING NOP MESSAGE FAILED\n"); 3504 } 3505 } 3506 3507 /* 3508 * If the notify event request has died for some reason, or has 3509 * not started yet, restart it. 3510 */ 3511 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) { 3512 debug(0, "(re)starting Event Notify chain"); 3513 ciss_notify_event(sc); 3514 } 3515 3516 /* 3517 * Reschedule. 3518 */ 3519 callout_reset(&sc->ciss_periodic, CISS_HEARTBEAT_RATE * hz, ciss_periodic, sc); 3520 } 3521 3522 static void 3523 ciss_nop_complete(struct ciss_request *cr) 3524 { 3525 struct ciss_softc *sc; 3526 static int first_time = 1; 3527 3528 sc = cr->cr_sc; 3529 if (ciss_report_request(cr, NULL, NULL) != 0) { 3530 if (first_time == 1) { 3531 first_time = 0; 3532 ciss_printf(sc, "SENDING NOP MESSAGE FAILED (not logging anymore)\n"); 3533 } 3534 } 3535 3536 ciss_release_request(cr); 3537 } 3538 3539 /************************************************************************ 3540 * Disable the adapter. 3541 * 3542 * The all requests in completed queue is failed with hardware error. 3543 * This will cause failover in a multipath configuration. 3544 */ 3545 static void 3546 ciss_disable_adapter(struct ciss_softc *sc) 3547 { 3548 cr_qhead_t qh; 3549 struct ciss_request *cr; 3550 struct ciss_command *cc; 3551 struct ciss_error_info *ce; 3552 int i; 3553 3554 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 3555 pci_disable_busmaster(sc->ciss_dev); 3556 sc->ciss_flags &= ~CISS_FLAG_RUNNING; 3557 3558 for (i = 1; i < sc->ciss_max_requests; i++) { 3559 cr = &sc->ciss_request[i]; 3560 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 3561 continue; 3562 3563 cc = cr->cr_cc; 3564 ce = (struct ciss_error_info *)&(cc->sg[0]); 3565 ce->command_status = CISS_CMD_STATUS_HARDWARE_ERROR; 3566 ciss_enqueue_complete(cr, &qh); 3567 } 3568 3569 for (;;) { 3570 if ((cr = ciss_dequeue_complete(sc, &qh)) == NULL) 3571 break; 3572 3573 /* 3574 * If the request has a callback, invoke it. 3575 */ 3576 if (cr->cr_complete != NULL) { 3577 cr->cr_complete(cr); 3578 continue; 3579 } 3580 3581 /* 3582 * If someone is sleeping on this request, wake them up. 3583 */ 3584 if (cr->cr_flags & CISS_REQ_SLEEP) { 3585 cr->cr_flags &= ~CISS_REQ_SLEEP; 3586 wakeup(cr); 3587 continue; 3588 } 3589 } 3590 } 3591 3592 /************************************************************************ 3593 * Request a notification response from the adapter. 3594 * 3595 * If (cr) is NULL, this is the first request of the adapter, so 3596 * reset the adapter's message pointer and start with the oldest 3597 * message available. 3598 */ 3599 static void 3600 ciss_notify_event(struct ciss_softc *sc) 3601 { 3602 struct ciss_request *cr; 3603 struct ciss_command *cc; 3604 struct ciss_notify_cdb *cnc; 3605 int error; 3606 3607 debug_called(1); 3608 3609 cr = sc->ciss_periodic_notify; 3610 3611 /* get a request if we don't already have one */ 3612 if (cr == NULL) { 3613 if ((error = ciss_get_request(sc, &cr)) != 0) { 3614 debug(0, "can't get notify event request"); 3615 goto out; 3616 } 3617 sc->ciss_periodic_notify = cr; 3618 cr->cr_complete = ciss_notify_complete; 3619 debug(1, "acquired request %d", cr->cr_tag); 3620 } 3621 3622 /* 3623 * Get a databuffer if we don't already have one, note that the 3624 * adapter command wants a larger buffer than the actual 3625 * structure. 3626 */ 3627 if (cr->cr_data == NULL) { 3628 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3629 debug(0, "can't get notify event request buffer"); 3630 error = ENOMEM; 3631 goto out; 3632 } 3633 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3634 } 3635 3636 /* re-setup the request's command (since we never release it) XXX overkill*/ 3637 ciss_preen_command(cr); 3638 3639 /* (re)build the notify event command */ 3640 cc = cr->cr_cc; 3641 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3642 cc->header.address.physical.bus = 0; 3643 cc->header.address.physical.target = 0; 3644 3645 cc->cdb.cdb_length = sizeof(*cnc); 3646 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3647 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3648 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3649 cc->cdb.timeout = 0; /* no timeout, we hope */ 3650 3651 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3652 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE); 3653 cnc->opcode = CISS_OPCODE_READ; 3654 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT; 3655 cnc->timeout = 0; /* no timeout, we hope */ 3656 cnc->synchronous = 0; 3657 cnc->ordered = 0; 3658 cnc->seek_to_oldest = 0; 3659 if ((sc->ciss_flags & CISS_FLAG_RUNNING) == 0) 3660 cnc->new_only = 1; 3661 else 3662 cnc->new_only = 0; 3663 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3664 3665 /* submit the request */ 3666 error = ciss_start(cr); 3667 3668 out: 3669 if (error) { 3670 if (cr != NULL) { 3671 if (cr->cr_data != NULL) 3672 free(cr->cr_data, CISS_MALLOC_CLASS); 3673 ciss_release_request(cr); 3674 } 3675 sc->ciss_periodic_notify = NULL; 3676 debug(0, "can't submit notify event request"); 3677 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3678 } else { 3679 debug(1, "notify event submitted"); 3680 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK; 3681 } 3682 } 3683 3684 static void 3685 ciss_notify_complete(struct ciss_request *cr) 3686 { 3687 struct ciss_command *cc; 3688 struct ciss_notify *cn; 3689 struct ciss_softc *sc; 3690 int scsi_status; 3691 int command_status; 3692 debug_called(1); 3693 3694 cc = cr->cr_cc; 3695 cn = (struct ciss_notify *)cr->cr_data; 3696 sc = cr->cr_sc; 3697 3698 /* 3699 * Report request results, decode status. 3700 */ 3701 ciss_report_request(cr, &command_status, &scsi_status); 3702 3703 /* 3704 * Abort the chain on a fatal error. 3705 * 3706 * XXX which of these are actually errors? 3707 */ 3708 if ((command_status != CISS_CMD_STATUS_SUCCESS) && 3709 (command_status != CISS_CMD_STATUS_TARGET_STATUS) && 3710 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */ 3711 ciss_printf(sc, "fatal error in Notify Event request (%s)\n", 3712 ciss_name_command_status(command_status)); 3713 ciss_release_request(cr); 3714 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3715 return; 3716 } 3717 3718 /* 3719 * If the adapter gave us a text message, print it. 3720 */ 3721 if (cn->message[0] != 0) 3722 ciss_printf(sc, "*** %.80s\n", cn->message); 3723 3724 debug(0, "notify event class %d subclass %d detail %d", 3725 cn->class, cn->subclass, cn->detail); 3726 3727 /* 3728 * If the response indicates that the notifier has been aborted, 3729 * release the notifier command. 3730 */ 3731 if ((cn->class == CISS_NOTIFY_NOTIFIER) && 3732 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) && 3733 (cn->detail == 1)) { 3734 debug(0, "notifier exiting"); 3735 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3736 ciss_release_request(cr); 3737 sc->ciss_periodic_notify = NULL; 3738 wakeup(&sc->ciss_periodic_notify); 3739 } else { 3740 /* Handle notify events in a kernel thread */ 3741 ciss_enqueue_notify(cr); 3742 sc->ciss_periodic_notify = NULL; 3743 wakeup(&sc->ciss_periodic_notify); 3744 wakeup(&sc->ciss_notify); 3745 } 3746 /* 3747 * Send a new notify event command, if we're not aborting. 3748 */ 3749 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) { 3750 ciss_notify_event(sc); 3751 } 3752 } 3753 3754 /************************************************************************ 3755 * Abort the Notify Event chain. 3756 * 3757 * Note that we can't just abort the command in progress; we have to 3758 * explicitly issue an Abort Notify Event command in order for the 3759 * adapter to clean up correctly. 3760 * 3761 * If we are called with CISS_FLAG_ABORTING set in the adapter softc, 3762 * the chain will not restart itself. 3763 */ 3764 static int 3765 ciss_notify_abort(struct ciss_softc *sc) 3766 { 3767 struct ciss_request *cr; 3768 struct ciss_command *cc; 3769 struct ciss_notify_cdb *cnc; 3770 int error, command_status, scsi_status; 3771 3772 debug_called(1); 3773 3774 cr = NULL; 3775 error = 0; 3776 3777 /* verify that there's an outstanding command */ 3778 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3779 goto out; 3780 3781 /* get a command to issue the abort with */ 3782 if ((error = ciss_get_request(sc, &cr))) 3783 goto out; 3784 3785 /* get a buffer for the result */ 3786 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3787 debug(0, "can't get notify event request buffer"); 3788 error = ENOMEM; 3789 goto out; 3790 } 3791 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3792 3793 /* build the CDB */ 3794 cc = cr->cr_cc; 3795 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3796 cc->header.address.physical.bus = 0; 3797 cc->header.address.physical.target = 0; 3798 cc->cdb.cdb_length = sizeof(*cnc); 3799 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3800 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3801 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3802 cc->cdb.timeout = 0; /* no timeout, we hope */ 3803 3804 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3805 bzero(cnc, sizeof(*cnc)); 3806 cnc->opcode = CISS_OPCODE_WRITE; 3807 cnc->command = CISS_COMMAND_ABORT_NOTIFY; 3808 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3809 3810 ciss_print_request(cr); 3811 3812 /* 3813 * Submit the request and wait for it to complete. 3814 */ 3815 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3816 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error); 3817 goto out; 3818 } 3819 3820 /* 3821 * Check response. 3822 */ 3823 ciss_report_request(cr, &command_status, &scsi_status); 3824 switch(command_status) { 3825 case CISS_CMD_STATUS_SUCCESS: 3826 break; 3827 case CISS_CMD_STATUS_INVALID_COMMAND: 3828 /* 3829 * Some older adapters don't support the CISS version of this 3830 * command. Fall back to using the BMIC version. 3831 */ 3832 error = ciss_notify_abort_bmic(sc); 3833 if (error != 0) 3834 goto out; 3835 break; 3836 3837 case CISS_CMD_STATUS_TARGET_STATUS: 3838 /* 3839 * This can happen if the adapter thinks there wasn't an outstanding 3840 * Notify Event command but we did. We clean up here. 3841 */ 3842 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) { 3843 if (sc->ciss_periodic_notify != NULL) 3844 ciss_release_request(sc->ciss_periodic_notify); 3845 error = 0; 3846 goto out; 3847 } 3848 /* FALLTHROUGH */ 3849 3850 default: 3851 ciss_printf(sc, "Abort Notify Event command failed (%s)\n", 3852 ciss_name_command_status(command_status)); 3853 error = EIO; 3854 goto out; 3855 } 3856 3857 /* 3858 * Sleep waiting for the notifier command to complete. Note 3859 * that if it doesn't, we may end up in a bad situation, since 3860 * the adapter may deliver it later. Also note that the adapter 3861 * requires the Notify Event command to be cancelled in order to 3862 * maintain internal bookkeeping. 3863 */ 3864 while (sc->ciss_periodic_notify != NULL) { 3865 error = msleep(&sc->ciss_periodic_notify, &sc->ciss_mtx, PRIBIO, "cissNEA", hz * 5); 3866 if (error == EWOULDBLOCK) { 3867 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n"); 3868 break; 3869 } 3870 } 3871 3872 out: 3873 /* release the cancel request */ 3874 if (cr != NULL) { 3875 if (cr->cr_data != NULL) 3876 free(cr->cr_data, CISS_MALLOC_CLASS); 3877 ciss_release_request(cr); 3878 } 3879 if (error == 0) 3880 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3881 return(error); 3882 } 3883 3884 /************************************************************************ 3885 * Abort the Notify Event chain using a BMIC command. 3886 */ 3887 static int 3888 ciss_notify_abort_bmic(struct ciss_softc *sc) 3889 { 3890 struct ciss_request *cr; 3891 int error, command_status; 3892 3893 debug_called(1); 3894 3895 cr = NULL; 3896 error = 0; 3897 3898 /* verify that there's an outstanding command */ 3899 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3900 goto out; 3901 3902 /* 3903 * Build a BMIC command to cancel the Notify on Event command. 3904 * 3905 * Note that we are sending a CISS opcode here. Odd. 3906 */ 3907 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY, 3908 NULL, 0)) != 0) 3909 goto out; 3910 3911 /* 3912 * Submit the request and wait for it to complete. 3913 */ 3914 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3915 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error); 3916 goto out; 3917 } 3918 3919 /* 3920 * Check response. 3921 */ 3922 ciss_report_request(cr, &command_status, NULL); 3923 switch(command_status) { 3924 case CISS_CMD_STATUS_SUCCESS: 3925 break; 3926 default: 3927 ciss_printf(sc, "error cancelling Notify on Event (%s)\n", 3928 ciss_name_command_status(command_status)); 3929 error = EIO; 3930 goto out; 3931 } 3932 3933 out: 3934 if (cr != NULL) 3935 ciss_release_request(cr); 3936 return(error); 3937 } 3938 3939 /************************************************************************ 3940 * Handle rescanning all the logical volumes when a notify event 3941 * causes the drives to come online or offline. 3942 */ 3943 static void 3944 ciss_notify_rescan_logical(struct ciss_softc *sc) 3945 { 3946 struct ciss_lun_report *cll; 3947 struct ciss_ldrive *ld; 3948 int i, j, ndrives; 3949 3950 /* 3951 * We must rescan all logical volumes to get the right logical 3952 * drive address. 3953 */ 3954 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 3955 sc->ciss_cfg->max_logical_supported); 3956 if (cll == NULL) 3957 return; 3958 3959 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 3960 3961 /* 3962 * Delete any of the drives which were destroyed by the 3963 * firmware. 3964 */ 3965 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 3966 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) { 3967 ld = &sc->ciss_logical[i][j]; 3968 3969 if (ld->cl_update == 0) 3970 continue; 3971 3972 if (ld->cl_status != CISS_LD_ONLINE) { 3973 ciss_cam_rescan_target(sc, i, j); 3974 ld->cl_update = 0; 3975 if (ld->cl_ldrive) 3976 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 3977 if (ld->cl_lstatus) 3978 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 3979 3980 ld->cl_ldrive = NULL; 3981 ld->cl_lstatus = NULL; 3982 } 3983 } 3984 } 3985 3986 /* 3987 * Scan for new drives. 3988 */ 3989 for (i = 0; i < ndrives; i++) { 3990 int bus, target; 3991 3992 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 3993 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 3994 ld = &sc->ciss_logical[bus][target]; 3995 3996 if (ld->cl_update == 0) 3997 continue; 3998 3999 ld->cl_update = 0; 4000 ld->cl_address = cll->lun[i]; 4001 ld->cl_controller = &sc->ciss_controllers[bus]; 4002 if (ciss_identify_logical(sc, ld) == 0) { 4003 ciss_cam_rescan_target(sc, bus, target); 4004 } 4005 } 4006 free(cll, CISS_MALLOC_CLASS); 4007 } 4008 4009 /************************************************************************ 4010 * Handle a notify event relating to the status of a logical drive. 4011 * 4012 * XXX need to be able to defer some of these to properly handle 4013 * calling the "ID Physical drive" command, unless the 'extended' 4014 * drive IDs are always in BIG_MAP format. 4015 */ 4016 static void 4017 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn) 4018 { 4019 struct ciss_ldrive *ld; 4020 int ostatus, bus, target; 4021 4022 debug_called(2); 4023 4024 bus = cn->device.physical.bus; 4025 target = cn->data.logical_status.logical_drive; 4026 ld = &sc->ciss_logical[bus][target]; 4027 4028 switch (cn->subclass) { 4029 case CISS_NOTIFY_LOGICAL_STATUS: 4030 switch (cn->detail) { 4031 case 0: 4032 ciss_name_device(sc, bus, target); 4033 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n", 4034 cn->data.logical_status.logical_drive, ld->cl_name, 4035 ciss_name_ldrive_status(cn->data.logical_status.previous_state), 4036 ciss_name_ldrive_status(cn->data.logical_status.new_state), 4037 cn->data.logical_status.spare_state, 4038 "\20\1configured\2rebuilding\3failed\4in use\5available\n"); 4039 4040 /* 4041 * Update our idea of the drive's status. 4042 */ 4043 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state); 4044 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 4045 if (ld->cl_lstatus != NULL) 4046 ld->cl_lstatus->status = cn->data.logical_status.new_state; 4047 4048 /* 4049 * Have CAM rescan the drive if its status has changed. 4050 */ 4051 if (ostatus != ld->cl_status) { 4052 ld->cl_update = 1; 4053 ciss_notify_rescan_logical(sc); 4054 } 4055 4056 break; 4057 4058 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */ 4059 ciss_name_device(sc, bus, target); 4060 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n", 4061 cn->data.logical_status.logical_drive, ld->cl_name); 4062 ciss_accept_media(sc, ld); 4063 4064 ld->cl_update = 1; 4065 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 4066 ciss_notify_rescan_logical(sc); 4067 break; 4068 4069 case 2: 4070 case 3: 4071 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n", 4072 cn->data.rebuild_aborted.logical_drive, 4073 ld->cl_name, 4074 (cn->detail == 2) ? "read" : "write"); 4075 break; 4076 } 4077 break; 4078 4079 case CISS_NOTIFY_LOGICAL_ERROR: 4080 if (cn->detail == 0) { 4081 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n", 4082 cn->data.io_error.logical_drive, 4083 ld->cl_name, 4084 cn->data.io_error.failure_bus, 4085 cn->data.io_error.failure_drive); 4086 /* XXX should we take the drive down at this point, or will we be told? */ 4087 } 4088 break; 4089 4090 case CISS_NOTIFY_LOGICAL_SURFACE: 4091 if (cn->detail == 0) 4092 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n", 4093 cn->data.consistency_completed.logical_drive, 4094 ld->cl_name); 4095 break; 4096 } 4097 } 4098 4099 /************************************************************************ 4100 * Handle a notify event relating to the status of a physical drive. 4101 */ 4102 static void 4103 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn) 4104 { 4105 } 4106 4107 /************************************************************************ 4108 * Handle a notify event relating to the status of a physical drive. 4109 */ 4110 static void 4111 ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn) 4112 { 4113 struct ciss_lun_report *cll = NULL; 4114 int bus, target; 4115 4116 switch (cn->subclass) { 4117 case CISS_NOTIFY_HOTPLUG_PHYSICAL: 4118 case CISS_NOTIFY_HOTPLUG_NONDISK: 4119 bus = CISS_BIG_MAP_BUS(sc, cn->data.drive.big_physical_drive_number); 4120 target = 4121 CISS_BIG_MAP_TARGET(sc, cn->data.drive.big_physical_drive_number); 4122 4123 if (cn->detail == 0) { 4124 /* 4125 * Mark the device offline so that it'll start producing selection 4126 * timeouts to the upper layer. 4127 */ 4128 if ((bus >= 0) && (target >= 0)) 4129 sc->ciss_physical[bus][target].cp_online = 0; 4130 } else { 4131 /* 4132 * Rescan the physical lun list for new items 4133 */ 4134 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 4135 sc->ciss_cfg->max_physical_supported); 4136 if (cll == NULL) { 4137 ciss_printf(sc, "Warning, cannot get physical lun list\n"); 4138 break; 4139 } 4140 ciss_filter_physical(sc, cll); 4141 } 4142 break; 4143 4144 default: 4145 ciss_printf(sc, "Unknown hotplug event %d\n", cn->subclass); 4146 return; 4147 } 4148 4149 if (cll != NULL) 4150 free(cll, CISS_MALLOC_CLASS); 4151 } 4152 4153 /************************************************************************ 4154 * Handle deferred processing of notify events. Notify events may need 4155 * sleep which is unsafe during an interrupt. 4156 */ 4157 static void 4158 ciss_notify_thread(void *arg) 4159 { 4160 struct ciss_softc *sc; 4161 struct ciss_request *cr; 4162 struct ciss_notify *cn; 4163 4164 sc = (struct ciss_softc *)arg; 4165 mtx_lock(&sc->ciss_mtx); 4166 4167 for (;;) { 4168 if (STAILQ_EMPTY(&sc->ciss_notify) != 0 && 4169 (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) == 0) { 4170 msleep(&sc->ciss_notify, &sc->ciss_mtx, PUSER, "idle", 0); 4171 } 4172 4173 if (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) 4174 break; 4175 4176 cr = ciss_dequeue_notify(sc); 4177 4178 if (cr == NULL) 4179 panic("cr null"); 4180 cn = (struct ciss_notify *)cr->cr_data; 4181 4182 switch (cn->class) { 4183 case CISS_NOTIFY_HOTPLUG: 4184 ciss_notify_hotplug(sc, cn); 4185 break; 4186 case CISS_NOTIFY_LOGICAL: 4187 ciss_notify_logical(sc, cn); 4188 break; 4189 case CISS_NOTIFY_PHYSICAL: 4190 ciss_notify_physical(sc, cn); 4191 break; 4192 } 4193 4194 ciss_release_request(cr); 4195 4196 } 4197 sc->ciss_notify_thread = NULL; 4198 wakeup(&sc->ciss_notify_thread); 4199 4200 mtx_unlock(&sc->ciss_mtx); 4201 kproc_exit(0); 4202 } 4203 4204 /************************************************************************ 4205 * Start the notification kernel thread. 4206 */ 4207 static void 4208 ciss_spawn_notify_thread(struct ciss_softc *sc) 4209 { 4210 4211 if (kproc_create((void(*)(void *))ciss_notify_thread, sc, 4212 &sc->ciss_notify_thread, 0, 0, "ciss_notify%d", 4213 device_get_unit(sc->ciss_dev))) 4214 panic("Could not create notify thread\n"); 4215 } 4216 4217 /************************************************************************ 4218 * Kill the notification kernel thread. 4219 */ 4220 static void 4221 ciss_kill_notify_thread(struct ciss_softc *sc) 4222 { 4223 4224 if (sc->ciss_notify_thread == NULL) 4225 return; 4226 4227 sc->ciss_flags |= CISS_FLAG_THREAD_SHUT; 4228 wakeup(&sc->ciss_notify); 4229 msleep(&sc->ciss_notify_thread, &sc->ciss_mtx, PUSER, "thtrm", 0); 4230 } 4231 4232 /************************************************************************ 4233 * Print a request. 4234 */ 4235 static void 4236 ciss_print_request(struct ciss_request *cr) 4237 { 4238 struct ciss_softc *sc; 4239 struct ciss_command *cc; 4240 int i; 4241 4242 sc = cr->cr_sc; 4243 cc = cr->cr_cc; 4244 4245 ciss_printf(sc, "REQUEST @ %p\n", cr); 4246 ciss_printf(sc, " data %p/%d tag %d flags %b\n", 4247 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags, 4248 "\20\1mapped\2sleep\3poll\4dataout\5datain\n"); 4249 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n", 4250 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag); 4251 switch(cc->header.address.mode.mode) { 4252 case CISS_HDR_ADDRESS_MODE_PERIPHERAL: 4253 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL: 4254 ciss_printf(sc, " physical bus %d target %d\n", 4255 cc->header.address.physical.bus, cc->header.address.physical.target); 4256 break; 4257 case CISS_HDR_ADDRESS_MODE_LOGICAL: 4258 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun); 4259 break; 4260 } 4261 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n", 4262 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" : 4263 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" : 4264 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??", 4265 cc->cdb.cdb_length, 4266 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" : 4267 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??", 4268 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" : 4269 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" : 4270 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" : 4271 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" : 4272 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??"); 4273 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " "); 4274 4275 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) { 4276 /* XXX print error info */ 4277 } else { 4278 /* since we don't use chained s/g, don't support it here */ 4279 for (i = 0; i < cc->header.sg_in_list; i++) { 4280 if ((i % 4) == 0) 4281 ciss_printf(sc, " "); 4282 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length); 4283 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1))) 4284 printf("\n"); 4285 } 4286 } 4287 } 4288 4289 /************************************************************************ 4290 * Print information about the status of a logical drive. 4291 */ 4292 static void 4293 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld) 4294 { 4295 int bus, target, i; 4296 4297 if (ld->cl_lstatus == NULL) { 4298 printf("does not exist\n"); 4299 return; 4300 } 4301 4302 /* print drive status */ 4303 switch(ld->cl_lstatus->status) { 4304 case CISS_LSTATUS_OK: 4305 printf("online\n"); 4306 break; 4307 case CISS_LSTATUS_INTERIM_RECOVERY: 4308 printf("in interim recovery mode\n"); 4309 break; 4310 case CISS_LSTATUS_READY_RECOVERY: 4311 printf("ready to begin recovery\n"); 4312 break; 4313 case CISS_LSTATUS_RECOVERING: 4314 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4315 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4316 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n", 4317 bus, target, ld->cl_lstatus->blocks_to_recover); 4318 break; 4319 case CISS_LSTATUS_EXPANDING: 4320 printf("being expanded, %u blocks remaining\n", 4321 ld->cl_lstatus->blocks_to_recover); 4322 break; 4323 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4324 printf("queued for expansion\n"); 4325 break; 4326 case CISS_LSTATUS_FAILED: 4327 printf("queued for expansion\n"); 4328 break; 4329 case CISS_LSTATUS_WRONG_PDRIVE: 4330 printf("wrong physical drive inserted\n"); 4331 break; 4332 case CISS_LSTATUS_MISSING_PDRIVE: 4333 printf("missing a needed physical drive\n"); 4334 break; 4335 case CISS_LSTATUS_BECOMING_READY: 4336 printf("becoming ready\n"); 4337 break; 4338 } 4339 4340 /* print failed physical drives */ 4341 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) { 4342 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]); 4343 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]); 4344 if (bus == -1) 4345 continue; 4346 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target, 4347 ld->cl_lstatus->drive_failure_map[i]); 4348 } 4349 } 4350 4351 #ifdef CISS_DEBUG 4352 #include "opt_ddb.h" 4353 #ifdef DDB 4354 #include <ddb/ddb.h> 4355 /************************************************************************ 4356 * Print information about the controller/driver. 4357 */ 4358 static void 4359 ciss_print_adapter(struct ciss_softc *sc) 4360 { 4361 int i, j; 4362 4363 ciss_printf(sc, "ADAPTER:\n"); 4364 for (i = 0; i < CISSQ_COUNT; i++) { 4365 ciss_printf(sc, "%s %d/%d\n", 4366 i == 0 ? "free" : 4367 i == 1 ? "busy" : "complete", 4368 sc->ciss_qstat[i].q_length, 4369 sc->ciss_qstat[i].q_max); 4370 } 4371 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests); 4372 ciss_printf(sc, "flags %b\n", sc->ciss_flags, 4373 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n"); 4374 4375 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 4376 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) { 4377 ciss_printf(sc, "LOGICAL DRIVE %d: ", i); 4378 ciss_print_ldrive(sc, &sc->ciss_logical[i][j]); 4379 } 4380 } 4381 4382 /* XXX Should physical drives be printed out here? */ 4383 4384 for (i = 1; i < sc->ciss_max_requests; i++) 4385 ciss_print_request(sc->ciss_request + i); 4386 } 4387 4388 /* DDB hook */ 4389 DB_COMMAND(ciss_prt, db_ciss_prt) 4390 { 4391 struct ciss_softc *sc; 4392 devclass_t dc; 4393 int maxciss, i; 4394 4395 dc = devclass_find("ciss"); 4396 if ( dc == NULL ) { 4397 printf("%s: can't find devclass!\n", __func__); 4398 return; 4399 } 4400 maxciss = devclass_get_maxunit(dc); 4401 for (i = 0; i < maxciss; i++) { 4402 sc = devclass_get_softc(dc, i); 4403 ciss_print_adapter(sc); 4404 } 4405 } 4406 #endif 4407 #endif 4408 4409 /************************************************************************ 4410 * Return a name for a logical drive status value. 4411 */ 4412 static const char * 4413 ciss_name_ldrive_status(int status) 4414 { 4415 switch (status) { 4416 case CISS_LSTATUS_OK: 4417 return("OK"); 4418 case CISS_LSTATUS_FAILED: 4419 return("failed"); 4420 case CISS_LSTATUS_NOT_CONFIGURED: 4421 return("not configured"); 4422 case CISS_LSTATUS_INTERIM_RECOVERY: 4423 return("interim recovery"); 4424 case CISS_LSTATUS_READY_RECOVERY: 4425 return("ready for recovery"); 4426 case CISS_LSTATUS_RECOVERING: 4427 return("recovering"); 4428 case CISS_LSTATUS_WRONG_PDRIVE: 4429 return("wrong physical drive inserted"); 4430 case CISS_LSTATUS_MISSING_PDRIVE: 4431 return("missing physical drive"); 4432 case CISS_LSTATUS_EXPANDING: 4433 return("expanding"); 4434 case CISS_LSTATUS_BECOMING_READY: 4435 return("becoming ready"); 4436 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4437 return("queued for expansion"); 4438 } 4439 return("unknown status"); 4440 } 4441 4442 /************************************************************************ 4443 * Return an online/offline/nonexistent value for a logical drive 4444 * status value. 4445 */ 4446 static int 4447 ciss_decode_ldrive_status(int status) 4448 { 4449 switch(status) { 4450 case CISS_LSTATUS_NOT_CONFIGURED: 4451 return(CISS_LD_NONEXISTENT); 4452 4453 case CISS_LSTATUS_OK: 4454 case CISS_LSTATUS_INTERIM_RECOVERY: 4455 case CISS_LSTATUS_READY_RECOVERY: 4456 case CISS_LSTATUS_RECOVERING: 4457 case CISS_LSTATUS_EXPANDING: 4458 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4459 return(CISS_LD_ONLINE); 4460 4461 case CISS_LSTATUS_FAILED: 4462 case CISS_LSTATUS_WRONG_PDRIVE: 4463 case CISS_LSTATUS_MISSING_PDRIVE: 4464 case CISS_LSTATUS_BECOMING_READY: 4465 default: 4466 return(CISS_LD_OFFLINE); 4467 } 4468 } 4469 4470 4471 /************************************************************************ 4472 * Return a name for a logical drive's organisation. 4473 */ 4474 static const char * 4475 ciss_name_ldrive_org(int org) 4476 { 4477 switch(org) { 4478 case CISS_LDRIVE_RAID0: 4479 return("RAID 0"); 4480 case CISS_LDRIVE_RAID1: 4481 return("RAID 1(1+0)"); 4482 case CISS_LDRIVE_RAID4: 4483 return("RAID 4"); 4484 case CISS_LDRIVE_RAID5: 4485 return("RAID 5"); 4486 case CISS_LDRIVE_RAID51: 4487 return("RAID 5+1"); 4488 case CISS_LDRIVE_RAIDADG: 4489 return("RAID ADG"); 4490 } 4491 return("unknown"); 4492 } 4493 4494 /************************************************************************ 4495 * Return a name for a command status value. 4496 */ 4497 static const char * 4498 ciss_name_command_status(int status) 4499 { 4500 switch(status) { 4501 case CISS_CMD_STATUS_SUCCESS: 4502 return("success"); 4503 case CISS_CMD_STATUS_TARGET_STATUS: 4504 return("target status"); 4505 case CISS_CMD_STATUS_DATA_UNDERRUN: 4506 return("data underrun"); 4507 case CISS_CMD_STATUS_DATA_OVERRUN: 4508 return("data overrun"); 4509 case CISS_CMD_STATUS_INVALID_COMMAND: 4510 return("invalid command"); 4511 case CISS_CMD_STATUS_PROTOCOL_ERROR: 4512 return("protocol error"); 4513 case CISS_CMD_STATUS_HARDWARE_ERROR: 4514 return("hardware error"); 4515 case CISS_CMD_STATUS_CONNECTION_LOST: 4516 return("connection lost"); 4517 case CISS_CMD_STATUS_ABORTED: 4518 return("aborted"); 4519 case CISS_CMD_STATUS_ABORT_FAILED: 4520 return("abort failed"); 4521 case CISS_CMD_STATUS_UNSOLICITED_ABORT: 4522 return("unsolicited abort"); 4523 case CISS_CMD_STATUS_TIMEOUT: 4524 return("timeout"); 4525 case CISS_CMD_STATUS_UNABORTABLE: 4526 return("unabortable"); 4527 } 4528 return("unknown status"); 4529 } 4530 4531 /************************************************************************ 4532 * Handle an open on the control device. 4533 */ 4534 static int 4535 ciss_open(struct cdev *dev, int flags, int fmt, struct thread *p) 4536 { 4537 struct ciss_softc *sc; 4538 4539 debug_called(1); 4540 4541 sc = (struct ciss_softc *)dev->si_drv1; 4542 4543 /* we might want to veto if someone already has us open */ 4544 4545 mtx_lock(&sc->ciss_mtx); 4546 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN; 4547 mtx_unlock(&sc->ciss_mtx); 4548 return(0); 4549 } 4550 4551 /************************************************************************ 4552 * Handle the last close on the control device. 4553 */ 4554 static int 4555 ciss_close(struct cdev *dev, int flags, int fmt, struct thread *p) 4556 { 4557 struct ciss_softc *sc; 4558 4559 debug_called(1); 4560 4561 sc = (struct ciss_softc *)dev->si_drv1; 4562 4563 mtx_lock(&sc->ciss_mtx); 4564 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN; 4565 mtx_unlock(&sc->ciss_mtx); 4566 return (0); 4567 } 4568 4569 /******************************************************************************** 4570 * Handle adapter-specific control operations. 4571 * 4572 * Note that the API here is compatible with the Linux driver, in order to 4573 * simplify the porting of Compaq's userland tools. 4574 */ 4575 static int 4576 ciss_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag, struct thread *p) 4577 { 4578 struct ciss_softc *sc; 4579 IOCTL_Command_struct *ioc = (IOCTL_Command_struct *)addr; 4580 #ifdef __amd64__ 4581 IOCTL_Command_struct32 *ioc32 = (IOCTL_Command_struct32 *)addr; 4582 IOCTL_Command_struct ioc_swab; 4583 #endif 4584 int error; 4585 4586 debug_called(1); 4587 4588 sc = (struct ciss_softc *)dev->si_drv1; 4589 error = 0; 4590 mtx_lock(&sc->ciss_mtx); 4591 4592 switch(cmd) { 4593 case CCISS_GETQSTATS: 4594 { 4595 union ciss_statrequest *cr = (union ciss_statrequest *)addr; 4596 4597 switch (cr->cs_item) { 4598 case CISSQ_FREE: 4599 case CISSQ_NOTIFY: 4600 bcopy(&sc->ciss_qstat[cr->cs_item], &cr->cs_qstat, 4601 sizeof(struct ciss_qstat)); 4602 break; 4603 default: 4604 error = ENOIOCTL; 4605 break; 4606 } 4607 4608 break; 4609 } 4610 4611 case CCISS_GETPCIINFO: 4612 { 4613 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr; 4614 4615 pis->bus = pci_get_bus(sc->ciss_dev); 4616 pis->dev_fn = pci_get_slot(sc->ciss_dev); 4617 pis->board_id = (pci_get_subvendor(sc->ciss_dev) << 16) | 4618 pci_get_subdevice(sc->ciss_dev); 4619 4620 break; 4621 } 4622 4623 case CCISS_GETINTINFO: 4624 { 4625 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4626 4627 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay; 4628 cis->count = sc->ciss_cfg->interrupt_coalesce_count; 4629 4630 break; 4631 } 4632 4633 case CCISS_SETINTINFO: 4634 { 4635 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4636 4637 if ((cis->delay == 0) && (cis->count == 0)) { 4638 error = EINVAL; 4639 break; 4640 } 4641 4642 /* 4643 * XXX apparently this is only safe if the controller is idle, 4644 * we should suspend it before doing this. 4645 */ 4646 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay; 4647 sc->ciss_cfg->interrupt_coalesce_count = cis->count; 4648 4649 if (ciss_update_config(sc)) 4650 error = EIO; 4651 4652 /* XXX resume the controller here */ 4653 break; 4654 } 4655 4656 case CCISS_GETNODENAME: 4657 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr, 4658 sizeof(NodeName_type)); 4659 break; 4660 4661 case CCISS_SETNODENAME: 4662 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name, 4663 sizeof(NodeName_type)); 4664 if (ciss_update_config(sc)) 4665 error = EIO; 4666 break; 4667 4668 case CCISS_GETHEARTBEAT: 4669 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat; 4670 break; 4671 4672 case CCISS_GETBUSTYPES: 4673 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types; 4674 break; 4675 4676 case CCISS_GETFIRMVER: 4677 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr, 4678 sizeof(FirmwareVer_type)); 4679 break; 4680 4681 case CCISS_GETDRIVERVER: 4682 *(DriverVer_type *)addr = CISS_DRIVER_VERSION; 4683 break; 4684 4685 case CCISS_REVALIDVOLS: 4686 /* 4687 * This is a bit ugly; to do it "right" we really need 4688 * to find any disks that have changed, kick CAM off them, 4689 * then rescan only these disks. It'd be nice if they 4690 * a) told us which disk(s) they were going to play with, 4691 * and b) which ones had arrived. 8( 4692 */ 4693 break; 4694 4695 #ifdef __amd64__ 4696 case CCISS_PASSTHRU32: 4697 ioc_swab.LUN_info = ioc32->LUN_info; 4698 ioc_swab.Request = ioc32->Request; 4699 ioc_swab.error_info = ioc32->error_info; 4700 ioc_swab.buf_size = ioc32->buf_size; 4701 ioc_swab.buf = (u_int8_t *)(uintptr_t)ioc32->buf; 4702 ioc = &ioc_swab; 4703 /* FALLTHROUGH */ 4704 #endif 4705 4706 case CCISS_PASSTHRU: 4707 error = ciss_user_command(sc, ioc); 4708 break; 4709 4710 default: 4711 debug(0, "unknown ioctl 0x%lx", cmd); 4712 4713 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO); 4714 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO); 4715 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO); 4716 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME); 4717 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME); 4718 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT); 4719 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES); 4720 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER); 4721 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER); 4722 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS); 4723 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU); 4724 4725 error = ENOIOCTL; 4726 break; 4727 } 4728 4729 mtx_unlock(&sc->ciss_mtx); 4730 return(error); 4731 } 4732