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