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 CISS_MAX_SG_ELEMENTS, /* 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 MAXBSIZE, CISS_MAX_SG_ELEMENTS, /* maxsize, nsegments */ 855 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 856 BUS_DMA_ALLOCNOW, /* flags */ 857 busdma_lock_mutex, &sc->ciss_mtx, /* lockfunc, lockarg */ 858 &sc->ciss_buffer_dmat)) { 859 ciss_printf(sc, "can't allocate buffer DMA tag\n"); 860 return(ENOMEM); 861 } 862 return(0); 863 } 864 865 /************************************************************************ 866 * Setup MSI/MSIX operation (Performant only) 867 * Four interrupts are available, but we only use 1 right now. If MSI-X 868 * isn't avaialble, try using MSI instead. 869 */ 870 static int 871 ciss_setup_msix(struct ciss_softc *sc) 872 { 873 int val, i; 874 875 /* Weed out devices that don't actually support MSI */ 876 i = ciss_lookup(sc->ciss_dev); 877 if (ciss_vendor_data[i].flags & CISS_BOARD_NOMSI) 878 return (EINVAL); 879 880 /* 881 * Only need to use the minimum number of MSI vectors, as the driver 882 * doesn't support directed MSIX interrupts. 883 */ 884 val = pci_msix_count(sc->ciss_dev); 885 if (val < CISS_MSI_COUNT) { 886 val = pci_msi_count(sc->ciss_dev); 887 device_printf(sc->ciss_dev, "got %d MSI messages]\n", val); 888 if (val < CISS_MSI_COUNT) 889 return (EINVAL); 890 } 891 val = MIN(val, CISS_MSI_COUNT); 892 if (pci_alloc_msix(sc->ciss_dev, &val) != 0) { 893 if (pci_alloc_msi(sc->ciss_dev, &val) != 0) 894 return (EINVAL); 895 } 896 897 sc->ciss_msi = val; 898 if (bootverbose) 899 ciss_printf(sc, "Using %d MSIX interrupt%s\n", val, 900 (val != 1) ? "s" : ""); 901 902 for (i = 0; i < val; i++) 903 sc->ciss_irq_rid[i] = i + 1; 904 905 return (0); 906 907 } 908 909 /************************************************************************ 910 * Setup the Performant structures. 911 */ 912 static int 913 ciss_init_perf(struct ciss_softc *sc) 914 { 915 struct ciss_perf_config *pc = sc->ciss_perf; 916 int reply_size; 917 918 /* 919 * Create the DMA tag for the reply queue. 920 */ 921 reply_size = sizeof(uint64_t) * sc->ciss_max_requests; 922 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 923 1, 0, /* alignment, boundary */ 924 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 925 BUS_SPACE_MAXADDR, /* highaddr */ 926 NULL, NULL, /* filter, filterarg */ 927 reply_size, 1, /* maxsize, nsegments */ 928 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 929 0, /* flags */ 930 NULL, NULL, /* lockfunc, lockarg */ 931 &sc->ciss_reply_dmat)) { 932 ciss_printf(sc, "can't allocate reply DMA tag\n"); 933 return(ENOMEM); 934 } 935 /* 936 * Allocate memory and make it available for DMA. 937 */ 938 if (bus_dmamem_alloc(sc->ciss_reply_dmat, (void **)&sc->ciss_reply, 939 BUS_DMA_NOWAIT, &sc->ciss_reply_map)) { 940 ciss_printf(sc, "can't allocate reply memory\n"); 941 return(ENOMEM); 942 } 943 bus_dmamap_load(sc->ciss_reply_dmat, sc->ciss_reply_map, sc->ciss_reply, 944 reply_size, ciss_command_map_helper, &sc->ciss_reply_phys, 0); 945 bzero(sc->ciss_reply, reply_size); 946 947 sc->ciss_cycle = 0x1; 948 sc->ciss_rqidx = 0; 949 950 /* 951 * Preload the fetch table with common command sizes. This allows the 952 * hardware to not waste bus cycles for typical i/o commands, but also not 953 * tax the driver to be too exact in choosing sizes. The table is optimized 954 * for page-aligned i/o's, but since most i/o comes from the various pagers, 955 * it's a reasonable assumption to make. 956 */ 957 pc->fetch_count[CISS_SG_FETCH_NONE] = (sizeof(struct ciss_command) + 15) / 16; 958 pc->fetch_count[CISS_SG_FETCH_1] = 959 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 1 + 15) / 16; 960 pc->fetch_count[CISS_SG_FETCH_2] = 961 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 2 + 15) / 16; 962 pc->fetch_count[CISS_SG_FETCH_4] = 963 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 4 + 15) / 16; 964 pc->fetch_count[CISS_SG_FETCH_8] = 965 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 8 + 15) / 16; 966 pc->fetch_count[CISS_SG_FETCH_16] = 967 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 16 + 15) / 16; 968 pc->fetch_count[CISS_SG_FETCH_32] = 969 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 32 + 15) / 16; 970 pc->fetch_count[CISS_SG_FETCH_MAX] = (CISS_COMMAND_ALLOC_SIZE + 15) / 16; 971 972 pc->rq_size = sc->ciss_max_requests; /* XXX less than the card supports? */ 973 pc->rq_count = 1; /* XXX Hardcode for a single queue */ 974 pc->rq_bank_hi = 0; 975 pc->rq_bank_lo = 0; 976 pc->rq[0].rq_addr_hi = 0x0; 977 pc->rq[0].rq_addr_lo = sc->ciss_reply_phys; 978 979 return(0); 980 } 981 982 /************************************************************************ 983 * Wait for the adapter to come ready. 984 */ 985 static int 986 ciss_wait_adapter(struct ciss_softc *sc) 987 { 988 int i; 989 990 debug_called(1); 991 992 /* 993 * Wait for the adapter to come ready. 994 */ 995 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) { 996 ciss_printf(sc, "waiting for adapter to come ready...\n"); 997 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) { 998 DELAY(1000000); /* one second */ 999 if (i > 30) { 1000 ciss_printf(sc, "timed out waiting for adapter to come ready\n"); 1001 return(EIO); 1002 } 1003 } 1004 } 1005 return(0); 1006 } 1007 1008 /************************************************************************ 1009 * Flush the adapter cache. 1010 */ 1011 static int 1012 ciss_flush_adapter(struct ciss_softc *sc) 1013 { 1014 struct ciss_request *cr; 1015 struct ciss_bmic_flush_cache *cbfc; 1016 int error, command_status; 1017 1018 debug_called(1); 1019 1020 cr = NULL; 1021 cbfc = NULL; 1022 1023 /* 1024 * Build a BMIC request to flush the cache. We don't disable 1025 * it, as we may be going to do more I/O (eg. we are emulating 1026 * the Synchronise Cache command). 1027 */ 1028 if ((cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 1029 error = ENOMEM; 1030 goto out; 1031 } 1032 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE, 1033 (void **)&cbfc, sizeof(*cbfc))) != 0) 1034 goto out; 1035 1036 /* 1037 * Submit the request and wait for it to complete. 1038 */ 1039 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1040 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error); 1041 goto out; 1042 } 1043 1044 /* 1045 * Check response. 1046 */ 1047 ciss_report_request(cr, &command_status, NULL); 1048 switch(command_status) { 1049 case CISS_CMD_STATUS_SUCCESS: 1050 break; 1051 default: 1052 ciss_printf(sc, "error flushing cache (%s)\n", 1053 ciss_name_command_status(command_status)); 1054 error = EIO; 1055 goto out; 1056 } 1057 1058 out: 1059 if (cbfc != NULL) 1060 free(cbfc, CISS_MALLOC_CLASS); 1061 if (cr != NULL) 1062 ciss_release_request(cr); 1063 return(error); 1064 } 1065 1066 static void 1067 ciss_soft_reset(struct ciss_softc *sc) 1068 { 1069 struct ciss_request *cr = NULL; 1070 struct ciss_command *cc; 1071 int i, error = 0; 1072 1073 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1074 /* only reset proxy controllers */ 1075 if (sc->ciss_controllers[i].physical.bus == 0) 1076 continue; 1077 1078 if ((error = ciss_get_request(sc, &cr)) != 0) 1079 break; 1080 1081 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_SOFT_RESET, 1082 NULL, 0)) != 0) 1083 break; 1084 1085 cc = cr->cr_cc; 1086 cc->header.address = sc->ciss_controllers[i]; 1087 1088 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) 1089 break; 1090 1091 ciss_release_request(cr); 1092 } 1093 1094 if (error) 1095 ciss_printf(sc, "error resetting controller (%d)\n", error); 1096 1097 if (cr != NULL) 1098 ciss_release_request(cr); 1099 } 1100 1101 /************************************************************************ 1102 * Allocate memory for the adapter command structures, initialise 1103 * the request structures. 1104 * 1105 * Note that the entire set of commands are allocated in a single 1106 * contiguous slab. 1107 */ 1108 static int 1109 ciss_init_requests(struct ciss_softc *sc) 1110 { 1111 struct ciss_request *cr; 1112 int i; 1113 1114 debug_called(1); 1115 1116 if (bootverbose) 1117 ciss_printf(sc, "using %d of %d available commands\n", 1118 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands); 1119 1120 /* 1121 * Create the DMA tag for commands. 1122 */ 1123 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 1124 32, 0, /* alignment, boundary */ 1125 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 1126 BUS_SPACE_MAXADDR, /* highaddr */ 1127 NULL, NULL, /* filter, filterarg */ 1128 CISS_COMMAND_ALLOC_SIZE * 1129 sc->ciss_max_requests, 1, /* maxsize, nsegments */ 1130 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 1131 0, /* flags */ 1132 NULL, NULL, /* lockfunc, lockarg */ 1133 &sc->ciss_command_dmat)) { 1134 ciss_printf(sc, "can't allocate command DMA tag\n"); 1135 return(ENOMEM); 1136 } 1137 /* 1138 * Allocate memory and make it available for DMA. 1139 */ 1140 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command, 1141 BUS_DMA_NOWAIT, &sc->ciss_command_map)) { 1142 ciss_printf(sc, "can't allocate command memory\n"); 1143 return(ENOMEM); 1144 } 1145 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map,sc->ciss_command, 1146 CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests, 1147 ciss_command_map_helper, &sc->ciss_command_phys, 0); 1148 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests); 1149 1150 /* 1151 * Set up the request and command structures, push requests onto 1152 * the free queue. 1153 */ 1154 for (i = 1; i < sc->ciss_max_requests; i++) { 1155 cr = &sc->ciss_request[i]; 1156 cr->cr_sc = sc; 1157 cr->cr_tag = i; 1158 cr->cr_cc = (struct ciss_command *)((uintptr_t)sc->ciss_command + 1159 CISS_COMMAND_ALLOC_SIZE * i); 1160 cr->cr_ccphys = sc->ciss_command_phys + CISS_COMMAND_ALLOC_SIZE * i; 1161 bus_dmamap_create(sc->ciss_buffer_dmat, 0, &cr->cr_datamap); 1162 ciss_enqueue_free(cr); 1163 } 1164 return(0); 1165 } 1166 1167 static void 1168 ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1169 { 1170 uint32_t *addr; 1171 1172 addr = arg; 1173 *addr = segs[0].ds_addr; 1174 } 1175 1176 /************************************************************************ 1177 * Identify the adapter, print some information about it. 1178 */ 1179 static int 1180 ciss_identify_adapter(struct ciss_softc *sc) 1181 { 1182 struct ciss_request *cr; 1183 int error, command_status; 1184 1185 debug_called(1); 1186 1187 cr = NULL; 1188 1189 /* 1190 * Get a request, allocate storage for the adapter data. 1191 */ 1192 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR, 1193 (void **)&sc->ciss_id, 1194 sizeof(*sc->ciss_id))) != 0) 1195 goto out; 1196 1197 /* 1198 * Submit the request and wait for it to complete. 1199 */ 1200 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1201 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error); 1202 goto out; 1203 } 1204 1205 /* 1206 * Check response. 1207 */ 1208 ciss_report_request(cr, &command_status, NULL); 1209 switch(command_status) { 1210 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1211 break; 1212 case CISS_CMD_STATUS_DATA_UNDERRUN: 1213 case CISS_CMD_STATUS_DATA_OVERRUN: 1214 ciss_printf(sc, "data over/underrun reading adapter information\n"); 1215 default: 1216 ciss_printf(sc, "error reading adapter information (%s)\n", 1217 ciss_name_command_status(command_status)); 1218 error = EIO; 1219 goto out; 1220 } 1221 1222 /* sanity-check reply */ 1223 if (!(sc->ciss_id->controller_flags & CONTROLLER_FLAGS_BIG_MAP_SUPPORT)) { 1224 ciss_printf(sc, "adapter does not support BIG_MAP\n"); 1225 error = ENXIO; 1226 goto out; 1227 } 1228 1229 #if 0 1230 /* XXX later revisions may not need this */ 1231 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH; 1232 #endif 1233 1234 /* XXX only really required for old 5300 adapters? */ 1235 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT; 1236 1237 /* 1238 * Earlier controller specs do not contain these config 1239 * entries, so assume that a 0 means its old and assign 1240 * these values to the defaults that were established 1241 * when this driver was developed for them 1242 */ 1243 if (sc->ciss_cfg->max_logical_supported == 0) 1244 sc->ciss_cfg->max_logical_supported = CISS_MAX_LOGICAL; 1245 if (sc->ciss_cfg->max_physical_supported == 0) 1246 sc->ciss_cfg->max_physical_supported = CISS_MAX_PHYSICAL; 1247 /* print information */ 1248 if (bootverbose) { 1249 ciss_printf(sc, " %d logical drive%s configured\n", 1250 sc->ciss_id->configured_logical_drives, 1251 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s"); 1252 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision); 1253 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_chip_count); 1254 1255 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature); 1256 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence); 1257 ciss_printf(sc, " supported I/O methods 0x%b\n", 1258 sc->ciss_cfg->supported_methods, 1259 "\20\1READY\2simple\3performant\4MEMQ\n"); 1260 ciss_printf(sc, " active I/O method 0x%b\n", 1261 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n"); 1262 ciss_printf(sc, " 4G page base 0x%08x\n", 1263 sc->ciss_cfg->command_physlimit); 1264 ciss_printf(sc, " interrupt coalesce delay %dus\n", 1265 sc->ciss_cfg->interrupt_coalesce_delay); 1266 ciss_printf(sc, " interrupt coalesce count %d\n", 1267 sc->ciss_cfg->interrupt_coalesce_count); 1268 ciss_printf(sc, " max outstanding commands %d\n", 1269 sc->ciss_cfg->max_outstanding_commands); 1270 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types, 1271 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n"); 1272 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name); 1273 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat); 1274 ciss_printf(sc, " max logical logical volumes: %d\n", sc->ciss_cfg->max_logical_supported); 1275 ciss_printf(sc, " max physical disks supported: %d\n", sc->ciss_cfg->max_physical_supported); 1276 ciss_printf(sc, " max physical disks per logical volume: %d\n", sc->ciss_cfg->max_physical_per_logical); 1277 ciss_printf(sc, " JBOD Support is %s\n", (sc->ciss_id->uiYetMoreControllerFlags & YMORE_CONTROLLER_FLAGS_JBOD_SUPPORTED) ? 1278 "Available" : "Unavailable"); 1279 ciss_printf(sc, " JBOD Mode is %s\n", (sc->ciss_id->PowerUPNvramFlags & PWR_UP_FLAG_JBOD_ENABLED) ? 1280 "Enabled" : "Disabled"); 1281 } 1282 1283 out: 1284 if (error) { 1285 if (sc->ciss_id != NULL) { 1286 free(sc->ciss_id, CISS_MALLOC_CLASS); 1287 sc->ciss_id = NULL; 1288 } 1289 } 1290 if (cr != NULL) 1291 ciss_release_request(cr); 1292 return(error); 1293 } 1294 1295 /************************************************************************ 1296 * Helper routine for generating a list of logical and physical luns. 1297 */ 1298 static struct ciss_lun_report * 1299 ciss_report_luns(struct ciss_softc *sc, int opcode, int nunits) 1300 { 1301 struct ciss_request *cr; 1302 struct ciss_command *cc; 1303 struct ciss_report_cdb *crc; 1304 struct ciss_lun_report *cll; 1305 int command_status; 1306 int report_size; 1307 int error = 0; 1308 1309 debug_called(1); 1310 1311 cr = NULL; 1312 cll = NULL; 1313 1314 /* 1315 * Get a request, allocate storage for the address list. 1316 */ 1317 if ((error = ciss_get_request(sc, &cr)) != 0) 1318 goto out; 1319 report_size = sizeof(*cll) + nunits * sizeof(union ciss_device_address); 1320 if ((cll = malloc(report_size, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 1321 ciss_printf(sc, "can't allocate memory for lun report\n"); 1322 error = ENOMEM; 1323 goto out; 1324 } 1325 1326 /* 1327 * Build the Report Logical/Physical LUNs command. 1328 */ 1329 cc = cr->cr_cc; 1330 cr->cr_data = cll; 1331 cr->cr_length = report_size; 1332 cr->cr_flags = CISS_REQ_DATAIN; 1333 1334 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 1335 cc->header.address.physical.bus = 0; 1336 cc->header.address.physical.target = 0; 1337 cc->cdb.cdb_length = sizeof(*crc); 1338 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1339 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1340 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1341 cc->cdb.timeout = 30; /* XXX better suggestions? */ 1342 1343 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]); 1344 bzero(crc, sizeof(*crc)); 1345 crc->opcode = opcode; 1346 crc->length = htonl(report_size); /* big-endian field */ 1347 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */ 1348 1349 /* 1350 * Submit the request and wait for it to complete. (timeout 1351 * here should be much greater than above) 1352 */ 1353 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1354 ciss_printf(sc, "error sending %d LUN command (%d)\n", opcode, error); 1355 goto out; 1356 } 1357 1358 /* 1359 * Check response. Note that data over/underrun is OK. 1360 */ 1361 ciss_report_request(cr, &command_status, NULL); 1362 switch(command_status) { 1363 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1364 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */ 1365 break; 1366 case CISS_CMD_STATUS_DATA_OVERRUN: 1367 ciss_printf(sc, "WARNING: more units than driver limit (%d)\n", 1368 sc->ciss_cfg->max_logical_supported); 1369 break; 1370 default: 1371 ciss_printf(sc, "error detecting logical drive configuration (%s)\n", 1372 ciss_name_command_status(command_status)); 1373 error = EIO; 1374 goto out; 1375 } 1376 ciss_release_request(cr); 1377 cr = NULL; 1378 1379 out: 1380 if (cr != NULL) 1381 ciss_release_request(cr); 1382 if (error && cll != NULL) { 1383 free(cll, CISS_MALLOC_CLASS); 1384 cll = NULL; 1385 } 1386 return(cll); 1387 } 1388 1389 /************************************************************************ 1390 * Find logical drives on the adapter. 1391 */ 1392 static int 1393 ciss_init_logical(struct ciss_softc *sc) 1394 { 1395 struct ciss_lun_report *cll; 1396 int error = 0, i, j; 1397 int ndrives; 1398 1399 debug_called(1); 1400 1401 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 1402 sc->ciss_cfg->max_logical_supported); 1403 if (cll == NULL) { 1404 error = ENXIO; 1405 goto out; 1406 } 1407 1408 /* sanity-check reply */ 1409 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1410 if ((ndrives < 0) || (ndrives > sc->ciss_cfg->max_logical_supported)) { 1411 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n", 1412 ndrives, sc->ciss_cfg->max_logical_supported); 1413 error = ENXIO; 1414 goto out; 1415 } 1416 1417 /* 1418 * Save logical drive information. 1419 */ 1420 if (bootverbose) { 1421 ciss_printf(sc, "%d logical drive%s\n", 1422 ndrives, (ndrives > 1 || ndrives == 0) ? "s" : ""); 1423 } 1424 1425 sc->ciss_logical = 1426 malloc(sc->ciss_max_logical_bus * sizeof(struct ciss_ldrive *), 1427 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1428 if (sc->ciss_logical == NULL) { 1429 error = ENXIO; 1430 goto out; 1431 } 1432 1433 for (i = 0; i <= sc->ciss_max_logical_bus; i++) { 1434 sc->ciss_logical[i] = 1435 malloc(sc->ciss_cfg->max_logical_supported * 1436 sizeof(struct ciss_ldrive), 1437 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1438 if (sc->ciss_logical[i] == NULL) { 1439 error = ENXIO; 1440 goto out; 1441 } 1442 1443 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) 1444 sc->ciss_logical[i][j].cl_status = CISS_LD_NONEXISTENT; 1445 } 1446 1447 1448 for (i = 0; i < sc->ciss_cfg->max_logical_supported; i++) { 1449 if (i < ndrives) { 1450 struct ciss_ldrive *ld; 1451 int bus, target; 1452 1453 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 1454 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 1455 ld = &sc->ciss_logical[bus][target]; 1456 1457 ld->cl_address = cll->lun[i]; 1458 ld->cl_controller = &sc->ciss_controllers[bus]; 1459 if (ciss_identify_logical(sc, ld) != 0) 1460 continue; 1461 /* 1462 * If the drive has had media exchanged, we should bring it online. 1463 */ 1464 if (ld->cl_lstatus->media_exchanged) 1465 ciss_accept_media(sc, ld); 1466 1467 } 1468 } 1469 1470 out: 1471 if (cll != NULL) 1472 free(cll, CISS_MALLOC_CLASS); 1473 return(error); 1474 } 1475 1476 static int 1477 ciss_init_physical(struct ciss_softc *sc) 1478 { 1479 struct ciss_lun_report *cll; 1480 int error = 0, i; 1481 int nphys; 1482 int bus, target; 1483 1484 debug_called(1); 1485 1486 bus = 0; 1487 target = 0; 1488 1489 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 1490 sc->ciss_cfg->max_physical_supported); 1491 if (cll == NULL) { 1492 error = ENXIO; 1493 goto out; 1494 } 1495 1496 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1497 1498 if (bootverbose) { 1499 ciss_printf(sc, "%d physical device%s\n", 1500 nphys, (nphys > 1 || nphys == 0) ? "s" : ""); 1501 } 1502 1503 /* 1504 * Figure out the bus mapping. 1505 * Logical buses include both the local logical bus for local arrays and 1506 * proxy buses for remote arrays. Physical buses are numbered by the 1507 * controller and represent physical buses that hold physical devices. 1508 * We shift these bus numbers so that everything fits into a single flat 1509 * numbering space for CAM. Logical buses occupy the first 32 CAM bus 1510 * numbers, and the physical bus numbers are shifted to be above that. 1511 * This results in the various driver arrays being indexed as follows: 1512 * 1513 * ciss_controllers[] - indexed by logical bus 1514 * ciss_cam_sim[] - indexed by both logical and physical, with physical 1515 * being shifted by 32. 1516 * ciss_logical[][] - indexed by logical bus 1517 * ciss_physical[][] - indexed by physical bus 1518 * 1519 * XXX This is getting more and more hackish. CISS really doesn't play 1520 * well with a standard SCSI model; devices are addressed via magic 1521 * cookies, not via b/t/l addresses. Since there is no way to store 1522 * the cookie in the CAM device object, we have to keep these lookup 1523 * tables handy so that the devices can be found quickly at the cost 1524 * of wasting memory and having a convoluted lookup scheme. This 1525 * driver should probably be converted to block interface. 1526 */ 1527 /* 1528 * If the L2 and L3 SCSI addresses are 0, this signifies a proxy 1529 * controller. A proxy controller is another physical controller 1530 * behind the primary PCI controller. We need to know about this 1531 * so that BMIC commands can be properly targeted. There can be 1532 * proxy controllers attached to a single PCI controller, so 1533 * find the highest numbered one so the array can be properly 1534 * sized. 1535 */ 1536 sc->ciss_max_logical_bus = 1; 1537 for (i = 0; i < nphys; i++) { 1538 if (cll->lun[i].physical.extra_address == 0) { 1539 bus = cll->lun[i].physical.bus; 1540 sc->ciss_max_logical_bus = max(sc->ciss_max_logical_bus, bus) + 1; 1541 } else { 1542 bus = CISS_EXTRA_BUS2(cll->lun[i].physical.extra_address); 1543 sc->ciss_max_physical_bus = max(sc->ciss_max_physical_bus, bus); 1544 } 1545 } 1546 1547 sc->ciss_controllers = 1548 malloc(sc->ciss_max_logical_bus * sizeof (union ciss_device_address), 1549 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1550 1551 if (sc->ciss_controllers == NULL) { 1552 ciss_printf(sc, "Could not allocate memory for controller map\n"); 1553 error = ENOMEM; 1554 goto out; 1555 } 1556 1557 /* setup a map of controller addresses */ 1558 for (i = 0; i < nphys; i++) { 1559 if (cll->lun[i].physical.extra_address == 0) { 1560 sc->ciss_controllers[cll->lun[i].physical.bus] = cll->lun[i]; 1561 } 1562 } 1563 1564 sc->ciss_physical = 1565 malloc(sc->ciss_max_physical_bus * sizeof(struct ciss_pdrive *), 1566 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1567 if (sc->ciss_physical == NULL) { 1568 ciss_printf(sc, "Could not allocate memory for physical device map\n"); 1569 error = ENOMEM; 1570 goto out; 1571 } 1572 1573 for (i = 0; i < sc->ciss_max_physical_bus; i++) { 1574 sc->ciss_physical[i] = 1575 malloc(sizeof(struct ciss_pdrive) * CISS_MAX_PHYSTGT, 1576 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1577 if (sc->ciss_physical[i] == NULL) { 1578 ciss_printf(sc, "Could not allocate memory for target map\n"); 1579 error = ENOMEM; 1580 goto out; 1581 } 1582 } 1583 1584 ciss_filter_physical(sc, cll); 1585 1586 out: 1587 if (cll != NULL) 1588 free(cll, CISS_MALLOC_CLASS); 1589 1590 return(error); 1591 } 1592 1593 static int 1594 ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll) 1595 { 1596 u_int32_t ea; 1597 int i, nphys; 1598 int bus, target; 1599 1600 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1601 for (i = 0; i < nphys; i++) { 1602 if (cll->lun[i].physical.extra_address == 0) 1603 continue; 1604 1605 /* 1606 * Filter out devices that we don't want. Level 3 LUNs could 1607 * probably be supported, but the docs don't give enough of a 1608 * hint to know how. 1609 * 1610 * The mode field of the physical address is likely set to have 1611 * hard disks masked out. Honor it unless the user has overridden 1612 * us with the tunable. We also munge the inquiry data for these 1613 * disks so that they only show up as passthrough devices. Keeping 1614 * them visible in this fashion is useful for doing things like 1615 * flashing firmware. 1616 */ 1617 ea = cll->lun[i].physical.extra_address; 1618 if ((CISS_EXTRA_BUS3(ea) != 0) || (CISS_EXTRA_TARGET3(ea) != 0) || 1619 (CISS_EXTRA_MODE2(ea) == 0x3)) 1620 continue; 1621 if ((ciss_expose_hidden_physical == 0) && 1622 (cll->lun[i].physical.mode == CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL)) 1623 continue; 1624 1625 /* 1626 * Note: CISS firmware numbers physical busses starting at '1', not 1627 * '0'. This numbering is internal to the firmware and is only 1628 * used as a hint here. 1629 */ 1630 bus = CISS_EXTRA_BUS2(ea) - 1; 1631 target = CISS_EXTRA_TARGET2(ea); 1632 sc->ciss_physical[bus][target].cp_address = cll->lun[i]; 1633 sc->ciss_physical[bus][target].cp_online = 1; 1634 } 1635 1636 return (0); 1637 } 1638 1639 static int 1640 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1641 { 1642 struct ciss_request *cr; 1643 struct ciss_command *cc; 1644 struct scsi_inquiry *inq; 1645 int error; 1646 int command_status; 1647 1648 cr = NULL; 1649 1650 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry)); 1651 1652 if ((error = ciss_get_request(sc, &cr)) != 0) 1653 goto out; 1654 1655 cc = cr->cr_cc; 1656 cr->cr_data = &ld->cl_geometry; 1657 cr->cr_length = sizeof(ld->cl_geometry); 1658 cr->cr_flags = CISS_REQ_DATAIN; 1659 1660 cc->header.address = ld->cl_address; 1661 cc->cdb.cdb_length = 6; 1662 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1663 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1664 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1665 cc->cdb.timeout = 30; 1666 1667 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]); 1668 inq->opcode = INQUIRY; 1669 inq->byte2 = SI_EVPD; 1670 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY; 1671 scsi_ulto2b(sizeof(ld->cl_geometry), inq->length); 1672 1673 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1674 ciss_printf(sc, "error getting geometry (%d)\n", error); 1675 goto out; 1676 } 1677 1678 ciss_report_request(cr, &command_status, NULL); 1679 switch(command_status) { 1680 case CISS_CMD_STATUS_SUCCESS: 1681 case CISS_CMD_STATUS_DATA_UNDERRUN: 1682 break; 1683 case CISS_CMD_STATUS_DATA_OVERRUN: 1684 ciss_printf(sc, "WARNING: Data overrun\n"); 1685 break; 1686 default: 1687 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n", 1688 ciss_name_command_status(command_status)); 1689 break; 1690 } 1691 1692 out: 1693 if (cr != NULL) 1694 ciss_release_request(cr); 1695 return(error); 1696 } 1697 /************************************************************************ 1698 * Identify a logical drive, initialise state related to it. 1699 */ 1700 static int 1701 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1702 { 1703 struct ciss_request *cr; 1704 struct ciss_command *cc; 1705 struct ciss_bmic_cdb *cbc; 1706 int error, command_status; 1707 1708 debug_called(1); 1709 1710 cr = NULL; 1711 1712 /* 1713 * Build a BMIC request to fetch the drive ID. 1714 */ 1715 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE, 1716 (void **)&ld->cl_ldrive, 1717 sizeof(*ld->cl_ldrive))) != 0) 1718 goto out; 1719 cc = cr->cr_cc; 1720 cc->header.address = *ld->cl_controller; /* target controller */ 1721 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1722 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1723 1724 /* 1725 * Submit the request and wait for it to complete. 1726 */ 1727 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1728 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error); 1729 goto out; 1730 } 1731 1732 /* 1733 * Check response. 1734 */ 1735 ciss_report_request(cr, &command_status, NULL); 1736 switch(command_status) { 1737 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1738 break; 1739 case CISS_CMD_STATUS_DATA_UNDERRUN: 1740 case CISS_CMD_STATUS_DATA_OVERRUN: 1741 ciss_printf(sc, "data over/underrun reading logical drive ID\n"); 1742 default: 1743 ciss_printf(sc, "error reading logical drive ID (%s)\n", 1744 ciss_name_command_status(command_status)); 1745 error = EIO; 1746 goto out; 1747 } 1748 ciss_release_request(cr); 1749 cr = NULL; 1750 1751 /* 1752 * Build a CISS BMIC command to get the logical drive status. 1753 */ 1754 if ((error = ciss_get_ldrive_status(sc, ld)) != 0) 1755 goto out; 1756 1757 /* 1758 * Get the logical drive geometry. 1759 */ 1760 if ((error = ciss_inquiry_logical(sc, ld)) != 0) 1761 goto out; 1762 1763 /* 1764 * Print the drive's basic characteristics. 1765 */ 1766 if (bootverbose) { 1767 ciss_printf(sc, "logical drive (b%dt%d): %s, %dMB ", 1768 CISS_LUN_TO_BUS(ld->cl_address.logical.lun), 1769 CISS_LUN_TO_TARGET(ld->cl_address.logical.lun), 1770 ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance), 1771 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) * 1772 ld->cl_ldrive->block_size)); 1773 1774 ciss_print_ldrive(sc, ld); 1775 } 1776 out: 1777 if (error != 0) { 1778 /* make the drive not-exist */ 1779 ld->cl_status = CISS_LD_NONEXISTENT; 1780 if (ld->cl_ldrive != NULL) { 1781 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 1782 ld->cl_ldrive = NULL; 1783 } 1784 if (ld->cl_lstatus != NULL) { 1785 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 1786 ld->cl_lstatus = NULL; 1787 } 1788 } 1789 if (cr != NULL) 1790 ciss_release_request(cr); 1791 1792 return(error); 1793 } 1794 1795 /************************************************************************ 1796 * Get status for a logical drive. 1797 * 1798 * XXX should we also do this in response to Test Unit Ready? 1799 */ 1800 static int 1801 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld) 1802 { 1803 struct ciss_request *cr; 1804 struct ciss_command *cc; 1805 struct ciss_bmic_cdb *cbc; 1806 int error, command_status; 1807 1808 /* 1809 * Build a CISS BMIC command to get the logical drive status. 1810 */ 1811 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS, 1812 (void **)&ld->cl_lstatus, 1813 sizeof(*ld->cl_lstatus))) != 0) 1814 goto out; 1815 cc = cr->cr_cc; 1816 cc->header.address = *ld->cl_controller; /* target controller */ 1817 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1818 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1819 1820 /* 1821 * Submit the request and wait for it to complete. 1822 */ 1823 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1824 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1825 goto out; 1826 } 1827 1828 /* 1829 * Check response. 1830 */ 1831 ciss_report_request(cr, &command_status, NULL); 1832 switch(command_status) { 1833 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1834 break; 1835 case CISS_CMD_STATUS_DATA_UNDERRUN: 1836 case CISS_CMD_STATUS_DATA_OVERRUN: 1837 ciss_printf(sc, "data over/underrun reading logical drive status\n"); 1838 default: 1839 ciss_printf(sc, "error reading logical drive status (%s)\n", 1840 ciss_name_command_status(command_status)); 1841 error = EIO; 1842 goto out; 1843 } 1844 1845 /* 1846 * Set the drive's summary status based on the returned status. 1847 * 1848 * XXX testing shows that a failed JBOD drive comes back at next 1849 * boot in "queued for expansion" mode. WTF? 1850 */ 1851 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status); 1852 1853 out: 1854 if (cr != NULL) 1855 ciss_release_request(cr); 1856 return(error); 1857 } 1858 1859 /************************************************************************ 1860 * Notify the adapter of a config update. 1861 */ 1862 static int 1863 ciss_update_config(struct ciss_softc *sc) 1864 { 1865 int i; 1866 1867 debug_called(1); 1868 1869 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE); 1870 for (i = 0; i < 1000; i++) { 1871 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) & 1872 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) { 1873 return(0); 1874 } 1875 DELAY(1000); 1876 } 1877 return(1); 1878 } 1879 1880 /************************************************************************ 1881 * Accept new media into a logical drive. 1882 * 1883 * XXX The drive has previously been offline; it would be good if we 1884 * could make sure it's not open right now. 1885 */ 1886 static int 1887 ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld) 1888 { 1889 struct ciss_request *cr; 1890 struct ciss_command *cc; 1891 struct ciss_bmic_cdb *cbc; 1892 int command_status; 1893 int error = 0, ldrive; 1894 1895 ldrive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1896 1897 debug(0, "bringing logical drive %d back online", ldrive); 1898 1899 /* 1900 * Build a CISS BMIC command to bring the drive back online. 1901 */ 1902 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA, 1903 NULL, 0)) != 0) 1904 goto out; 1905 cc = cr->cr_cc; 1906 cc->header.address = *ld->cl_controller; /* target controller */ 1907 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1908 cbc->log_drive = ldrive; 1909 1910 /* 1911 * Submit the request and wait for it to complete. 1912 */ 1913 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1914 ciss_printf(sc, "error sending BMIC ACCEPT MEDIA command (%d)\n", error); 1915 goto out; 1916 } 1917 1918 /* 1919 * Check response. 1920 */ 1921 ciss_report_request(cr, &command_status, NULL); 1922 switch(command_status) { 1923 case CISS_CMD_STATUS_SUCCESS: /* all OK */ 1924 /* we should get a logical drive status changed event here */ 1925 break; 1926 default: 1927 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n", 1928 ciss_name_command_status(command_status)); 1929 break; 1930 } 1931 1932 out: 1933 if (cr != NULL) 1934 ciss_release_request(cr); 1935 return(error); 1936 } 1937 1938 /************************************************************************ 1939 * Release adapter resources. 1940 */ 1941 static void 1942 ciss_free(struct ciss_softc *sc) 1943 { 1944 struct ciss_request *cr; 1945 int i, j; 1946 1947 debug_called(1); 1948 1949 /* we're going away */ 1950 sc->ciss_flags |= CISS_FLAG_ABORTING; 1951 1952 /* terminate the periodic heartbeat routine */ 1953 callout_stop(&sc->ciss_periodic); 1954 1955 /* cancel the Event Notify chain */ 1956 ciss_notify_abort(sc); 1957 1958 ciss_kill_notify_thread(sc); 1959 1960 /* disconnect from CAM */ 1961 if (sc->ciss_cam_sim) { 1962 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1963 if (sc->ciss_cam_sim[i]) { 1964 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1965 cam_sim_free(sc->ciss_cam_sim[i], 0); 1966 } 1967 } 1968 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 1969 CISS_PHYSICAL_BASE; i++) { 1970 if (sc->ciss_cam_sim[i]) { 1971 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1972 cam_sim_free(sc->ciss_cam_sim[i], 0); 1973 } 1974 } 1975 free(sc->ciss_cam_sim, CISS_MALLOC_CLASS); 1976 } 1977 if (sc->ciss_cam_devq) 1978 cam_simq_free(sc->ciss_cam_devq); 1979 1980 /* remove the control device */ 1981 mtx_unlock(&sc->ciss_mtx); 1982 if (sc->ciss_dev_t != NULL) 1983 destroy_dev(sc->ciss_dev_t); 1984 1985 /* Final cleanup of the callout. */ 1986 callout_drain(&sc->ciss_periodic); 1987 mtx_destroy(&sc->ciss_mtx); 1988 1989 /* free the controller data */ 1990 if (sc->ciss_id != NULL) 1991 free(sc->ciss_id, CISS_MALLOC_CLASS); 1992 1993 /* release I/O resources */ 1994 if (sc->ciss_regs_resource != NULL) 1995 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1996 sc->ciss_regs_rid, sc->ciss_regs_resource); 1997 if (sc->ciss_cfg_resource != NULL) 1998 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1999 sc->ciss_cfg_rid, sc->ciss_cfg_resource); 2000 if (sc->ciss_intr != NULL) 2001 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr); 2002 if (sc->ciss_irq_resource != NULL) 2003 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ, 2004 sc->ciss_irq_rid[0], sc->ciss_irq_resource); 2005 if (sc->ciss_msi) 2006 pci_release_msi(sc->ciss_dev); 2007 2008 while ((cr = ciss_dequeue_free(sc)) != NULL) 2009 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap); 2010 if (sc->ciss_buffer_dmat) 2011 bus_dma_tag_destroy(sc->ciss_buffer_dmat); 2012 2013 /* destroy command memory and DMA tag */ 2014 if (sc->ciss_command != NULL) { 2015 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map); 2016 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map); 2017 } 2018 if (sc->ciss_command_dmat) 2019 bus_dma_tag_destroy(sc->ciss_command_dmat); 2020 2021 if (sc->ciss_reply) { 2022 bus_dmamap_unload(sc->ciss_reply_dmat, sc->ciss_reply_map); 2023 bus_dmamem_free(sc->ciss_reply_dmat, sc->ciss_reply, sc->ciss_reply_map); 2024 } 2025 if (sc->ciss_reply_dmat) 2026 bus_dma_tag_destroy(sc->ciss_reply_dmat); 2027 2028 /* destroy DMA tags */ 2029 if (sc->ciss_parent_dmat) 2030 bus_dma_tag_destroy(sc->ciss_parent_dmat); 2031 if (sc->ciss_logical) { 2032 for (i = 0; i <= sc->ciss_max_logical_bus; i++) { 2033 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) { 2034 if (sc->ciss_logical[i][j].cl_ldrive) 2035 free(sc->ciss_logical[i][j].cl_ldrive, CISS_MALLOC_CLASS); 2036 if (sc->ciss_logical[i][j].cl_lstatus) 2037 free(sc->ciss_logical[i][j].cl_lstatus, CISS_MALLOC_CLASS); 2038 } 2039 free(sc->ciss_logical[i], CISS_MALLOC_CLASS); 2040 } 2041 free(sc->ciss_logical, CISS_MALLOC_CLASS); 2042 } 2043 2044 if (sc->ciss_physical) { 2045 for (i = 0; i < sc->ciss_max_physical_bus; i++) 2046 free(sc->ciss_physical[i], CISS_MALLOC_CLASS); 2047 free(sc->ciss_physical, CISS_MALLOC_CLASS); 2048 } 2049 2050 if (sc->ciss_controllers) 2051 free(sc->ciss_controllers, CISS_MALLOC_CLASS); 2052 2053 } 2054 2055 /************************************************************************ 2056 * Give a command to the adapter. 2057 * 2058 * Note that this uses the simple transport layer directly. If we 2059 * want to add support for other layers, we'll need a switch of some 2060 * sort. 2061 * 2062 * Note that the simple transport layer has no way of refusing a 2063 * command; we only have as many request structures as the adapter 2064 * supports commands, so we don't have to check (this presumes that 2065 * the adapter can handle commands as fast as we throw them at it). 2066 */ 2067 static int 2068 ciss_start(struct ciss_request *cr) 2069 { 2070 struct ciss_command *cc; /* XXX debugging only */ 2071 int error; 2072 2073 cc = cr->cr_cc; 2074 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag); 2075 2076 /* 2077 * Map the request's data. 2078 */ 2079 if ((error = ciss_map_request(cr))) 2080 return(error); 2081 2082 #if 0 2083 ciss_print_request(cr); 2084 #endif 2085 2086 return(0); 2087 } 2088 2089 /************************************************************************ 2090 * Fetch completed request(s) from the adapter, queue them for 2091 * completion handling. 2092 * 2093 * Note that this uses the simple transport layer directly. If we 2094 * want to add support for other layers, we'll need a switch of some 2095 * sort. 2096 * 2097 * Note that the simple transport mechanism does not require any 2098 * reentrancy protection; the OPQ read is atomic. If there is a 2099 * chance of a race with something else that might move the request 2100 * off the busy list, then we will have to lock against that 2101 * (eg. timeouts, etc.) 2102 */ 2103 static void 2104 ciss_done(struct ciss_softc *sc, cr_qhead_t *qh) 2105 { 2106 struct ciss_request *cr; 2107 struct ciss_command *cc; 2108 u_int32_t tag, index; 2109 2110 debug_called(3); 2111 2112 /* 2113 * Loop quickly taking requests from the adapter and moving them 2114 * to the completed queue. 2115 */ 2116 for (;;) { 2117 2118 tag = CISS_TL_SIMPLE_FETCH_CMD(sc); 2119 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY) 2120 break; 2121 index = tag >> 2; 2122 debug(2, "completed command %d%s", index, 2123 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2124 if (index >= sc->ciss_max_requests) { 2125 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2126 continue; 2127 } 2128 cr = &(sc->ciss_request[index]); 2129 cc = cr->cr_cc; 2130 cc->header.host_tag = tag; /* not updated by adapter */ 2131 ciss_enqueue_complete(cr, qh); 2132 } 2133 2134 } 2135 2136 static void 2137 ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh) 2138 { 2139 struct ciss_request *cr; 2140 struct ciss_command *cc; 2141 u_int32_t tag, index; 2142 2143 debug_called(3); 2144 2145 /* 2146 * Loop quickly taking requests from the adapter and moving them 2147 * to the completed queue. 2148 */ 2149 for (;;) { 2150 tag = sc->ciss_reply[sc->ciss_rqidx]; 2151 if ((tag & CISS_CYCLE_MASK) != sc->ciss_cycle) 2152 break; 2153 index = tag >> 2; 2154 debug(2, "completed command %d%s\n", index, 2155 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2156 if (index < sc->ciss_max_requests) { 2157 cr = &(sc->ciss_request[index]); 2158 cc = cr->cr_cc; 2159 cc->header.host_tag = tag; /* not updated by adapter */ 2160 ciss_enqueue_complete(cr, qh); 2161 } else { 2162 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2163 } 2164 if (++sc->ciss_rqidx == sc->ciss_max_requests) { 2165 sc->ciss_rqidx = 0; 2166 sc->ciss_cycle ^= 1; 2167 } 2168 } 2169 2170 } 2171 2172 /************************************************************************ 2173 * Take an interrupt from the adapter. 2174 */ 2175 static void 2176 ciss_intr(void *arg) 2177 { 2178 cr_qhead_t qh; 2179 struct ciss_softc *sc = (struct ciss_softc *)arg; 2180 2181 /* 2182 * The only interrupt we recognise indicates that there are 2183 * entries in the outbound post queue. 2184 */ 2185 STAILQ_INIT(&qh); 2186 ciss_done(sc, &qh); 2187 mtx_lock(&sc->ciss_mtx); 2188 ciss_complete(sc, &qh); 2189 mtx_unlock(&sc->ciss_mtx); 2190 } 2191 2192 static void 2193 ciss_perf_intr(void *arg) 2194 { 2195 struct ciss_softc *sc = (struct ciss_softc *)arg; 2196 2197 /* Clear the interrupt and flush the bridges. Docs say that the flush 2198 * needs to be done twice, which doesn't seem right. 2199 */ 2200 CISS_TL_PERF_CLEAR_INT(sc); 2201 CISS_TL_PERF_FLUSH_INT(sc); 2202 2203 ciss_perf_msi_intr(sc); 2204 } 2205 2206 static void 2207 ciss_perf_msi_intr(void *arg) 2208 { 2209 cr_qhead_t qh; 2210 struct ciss_softc *sc = (struct ciss_softc *)arg; 2211 2212 STAILQ_INIT(&qh); 2213 ciss_perf_done(sc, &qh); 2214 mtx_lock(&sc->ciss_mtx); 2215 ciss_complete(sc, &qh); 2216 mtx_unlock(&sc->ciss_mtx); 2217 } 2218 2219 2220 /************************************************************************ 2221 * Process completed requests. 2222 * 2223 * Requests can be completed in three fashions: 2224 * 2225 * - by invoking a callback function (cr_complete is non-null) 2226 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set) 2227 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context 2228 */ 2229 static void 2230 ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh) 2231 { 2232 struct ciss_request *cr; 2233 2234 debug_called(2); 2235 2236 /* 2237 * Loop taking requests off the completed queue and performing 2238 * completion processing on them. 2239 */ 2240 for (;;) { 2241 if ((cr = ciss_dequeue_complete(sc, qh)) == NULL) 2242 break; 2243 ciss_unmap_request(cr); 2244 2245 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 2246 ciss_printf(sc, "WARNING: completing non-busy request\n"); 2247 cr->cr_flags &= ~CISS_REQ_BUSY; 2248 2249 /* 2250 * If the request has a callback, invoke it. 2251 */ 2252 if (cr->cr_complete != NULL) { 2253 cr->cr_complete(cr); 2254 continue; 2255 } 2256 2257 /* 2258 * If someone is sleeping on this request, wake them up. 2259 */ 2260 if (cr->cr_flags & CISS_REQ_SLEEP) { 2261 cr->cr_flags &= ~CISS_REQ_SLEEP; 2262 wakeup(cr); 2263 continue; 2264 } 2265 2266 /* 2267 * If someone is polling this request for completion, signal. 2268 */ 2269 if (cr->cr_flags & CISS_REQ_POLL) { 2270 cr->cr_flags &= ~CISS_REQ_POLL; 2271 continue; 2272 } 2273 2274 /* 2275 * Give up and throw the request back on the free queue. This 2276 * should never happen; resources will probably be lost. 2277 */ 2278 ciss_printf(sc, "WARNING: completed command with no submitter\n"); 2279 ciss_enqueue_free(cr); 2280 } 2281 } 2282 2283 /************************************************************************ 2284 * Report on the completion status of a request, and pass back SCSI 2285 * and command status values. 2286 */ 2287 static int 2288 _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func) 2289 { 2290 struct ciss_command *cc; 2291 struct ciss_error_info *ce; 2292 2293 debug_called(2); 2294 2295 cc = cr->cr_cc; 2296 ce = (struct ciss_error_info *)&(cc->sg[0]); 2297 2298 /* 2299 * We don't consider data under/overrun an error for the Report 2300 * Logical/Physical LUNs commands. 2301 */ 2302 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) && 2303 ((ce->command_status == CISS_CMD_STATUS_DATA_OVERRUN) || 2304 (ce->command_status == CISS_CMD_STATUS_DATA_UNDERRUN)) && 2305 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) || 2306 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS) || 2307 (cc->cdb.cdb[0] == INQUIRY))) { 2308 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR; 2309 debug(2, "ignoring irrelevant under/overrun error"); 2310 } 2311 2312 /* 2313 * Check the command's error bit, if clear, there's no status and 2314 * everything is OK. 2315 */ 2316 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) { 2317 if (scsi_status != NULL) 2318 *scsi_status = SCSI_STATUS_OK; 2319 if (command_status != NULL) 2320 *command_status = CISS_CMD_STATUS_SUCCESS; 2321 return(0); 2322 } else { 2323 if (command_status != NULL) 2324 *command_status = ce->command_status; 2325 if (scsi_status != NULL) { 2326 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) { 2327 *scsi_status = ce->scsi_status; 2328 } else { 2329 *scsi_status = -1; 2330 } 2331 } 2332 if (bootverbose) 2333 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n", 2334 ce->command_status, ciss_name_command_status(ce->command_status), 2335 ce->scsi_status); 2336 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) { 2337 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x, function %s\n", 2338 ce->additional_error_info.invalid_command.offense_size, 2339 ce->additional_error_info.invalid_command.offense_offset, 2340 ce->additional_error_info.invalid_command.offense_value, 2341 func); 2342 } 2343 } 2344 #if 0 2345 ciss_print_request(cr); 2346 #endif 2347 return(1); 2348 } 2349 2350 /************************************************************************ 2351 * Issue a request and don't return until it's completed. 2352 * 2353 * Depending on adapter status, we may poll or sleep waiting for 2354 * completion. 2355 */ 2356 static int 2357 ciss_synch_request(struct ciss_request *cr, int timeout) 2358 { 2359 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) { 2360 return(ciss_wait_request(cr, timeout)); 2361 } else { 2362 return(ciss_poll_request(cr, timeout)); 2363 } 2364 } 2365 2366 /************************************************************************ 2367 * Issue a request and poll for completion. 2368 * 2369 * Timeout in milliseconds. 2370 */ 2371 static int 2372 ciss_poll_request(struct ciss_request *cr, int timeout) 2373 { 2374 cr_qhead_t qh; 2375 struct ciss_softc *sc; 2376 int error; 2377 2378 debug_called(2); 2379 2380 STAILQ_INIT(&qh); 2381 sc = cr->cr_sc; 2382 cr->cr_flags |= CISS_REQ_POLL; 2383 if ((error = ciss_start(cr)) != 0) 2384 return(error); 2385 2386 do { 2387 if (sc->ciss_perf) 2388 ciss_perf_done(sc, &qh); 2389 else 2390 ciss_done(sc, &qh); 2391 ciss_complete(sc, &qh); 2392 if (!(cr->cr_flags & CISS_REQ_POLL)) 2393 return(0); 2394 DELAY(1000); 2395 } while (timeout-- >= 0); 2396 return(EWOULDBLOCK); 2397 } 2398 2399 /************************************************************************ 2400 * Issue a request and sleep waiting for completion. 2401 * 2402 * Timeout in milliseconds. Note that a spurious wakeup will reset 2403 * the timeout. 2404 */ 2405 static int 2406 ciss_wait_request(struct ciss_request *cr, int timeout) 2407 { 2408 int error; 2409 2410 debug_called(2); 2411 2412 cr->cr_flags |= CISS_REQ_SLEEP; 2413 if ((error = ciss_start(cr)) != 0) 2414 return(error); 2415 2416 while ((cr->cr_flags & CISS_REQ_SLEEP) && (error != EWOULDBLOCK)) { 2417 error = msleep(cr, &cr->cr_sc->ciss_mtx, PRIBIO, "cissREQ", (timeout * hz) / 1000); 2418 } 2419 return(error); 2420 } 2421 2422 #if 0 2423 /************************************************************************ 2424 * Abort a request. Note that a potential exists here to race the 2425 * request being completed; the caller must deal with this. 2426 */ 2427 static int 2428 ciss_abort_request(struct ciss_request *ar) 2429 { 2430 struct ciss_request *cr; 2431 struct ciss_command *cc; 2432 struct ciss_message_cdb *cmc; 2433 int error; 2434 2435 debug_called(1); 2436 2437 /* get a request */ 2438 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0) 2439 return(error); 2440 2441 /* build the abort command */ 2442 cc = cr->cr_cc; 2443 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */ 2444 cc->header.address.physical.target = 0; 2445 cc->header.address.physical.bus = 0; 2446 cc->cdb.cdb_length = sizeof(*cmc); 2447 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 2448 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2449 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2450 cc->cdb.timeout = 30; 2451 2452 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]); 2453 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT; 2454 cmc->type = CISS_MESSAGE_ABORT_TASK; 2455 cmc->abort_tag = ar->cr_tag; /* endianness?? */ 2456 2457 /* 2458 * Send the request and wait for a response. If we believe we 2459 * aborted the request OK, clear the flag that indicates it's 2460 * running. 2461 */ 2462 error = ciss_synch_request(cr, 35 * 1000); 2463 if (!error) 2464 error = ciss_report_request(cr, NULL, NULL); 2465 ciss_release_request(cr); 2466 2467 return(error); 2468 } 2469 #endif 2470 2471 2472 /************************************************************************ 2473 * Fetch and initialise a request 2474 */ 2475 static int 2476 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp) 2477 { 2478 struct ciss_request *cr; 2479 2480 debug_called(2); 2481 2482 /* 2483 * Get a request and clean it up. 2484 */ 2485 if ((cr = ciss_dequeue_free(sc)) == NULL) 2486 return(ENOMEM); 2487 2488 cr->cr_data = NULL; 2489 cr->cr_flags = 0; 2490 cr->cr_complete = NULL; 2491 cr->cr_private = NULL; 2492 cr->cr_sg_tag = CISS_SG_MAX; /* Backstop to prevent accidents */ 2493 2494 ciss_preen_command(cr); 2495 *crp = cr; 2496 return(0); 2497 } 2498 2499 static void 2500 ciss_preen_command(struct ciss_request *cr) 2501 { 2502 struct ciss_command *cc; 2503 u_int32_t cmdphys; 2504 2505 /* 2506 * Clean up the command structure. 2507 * 2508 * Note that we set up the error_info structure here, since the 2509 * length can be overwritten by any command. 2510 */ 2511 cc = cr->cr_cc; 2512 cc->header.sg_in_list = 0; /* kinda inefficient this way */ 2513 cc->header.sg_total = 0; 2514 cc->header.host_tag = cr->cr_tag << 2; 2515 cc->header.host_tag_zeroes = 0; 2516 bzero(&(cc->sg[0]), CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command)); 2517 cmdphys = cr->cr_ccphys; 2518 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command); 2519 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command); 2520 } 2521 2522 /************************************************************************ 2523 * Release a request to the free list. 2524 */ 2525 static void 2526 ciss_release_request(struct ciss_request *cr) 2527 { 2528 struct ciss_softc *sc; 2529 2530 debug_called(2); 2531 2532 sc = cr->cr_sc; 2533 2534 /* release the request to the free queue */ 2535 ciss_requeue_free(cr); 2536 } 2537 2538 /************************************************************************ 2539 * Allocate a request that will be used to send a BMIC command. Do some 2540 * of the common setup here to avoid duplicating it everywhere else. 2541 */ 2542 static int 2543 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 2544 int opcode, void **bufp, size_t bufsize) 2545 { 2546 struct ciss_request *cr; 2547 struct ciss_command *cc; 2548 struct ciss_bmic_cdb *cbc; 2549 void *buf; 2550 int error; 2551 int dataout; 2552 2553 debug_called(2); 2554 2555 cr = NULL; 2556 buf = NULL; 2557 2558 /* 2559 * Get a request. 2560 */ 2561 if ((error = ciss_get_request(sc, &cr)) != 0) 2562 goto out; 2563 2564 /* 2565 * Allocate data storage if requested, determine the data direction. 2566 */ 2567 dataout = 0; 2568 if ((bufsize > 0) && (bufp != NULL)) { 2569 if (*bufp == NULL) { 2570 if ((buf = malloc(bufsize, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 2571 error = ENOMEM; 2572 goto out; 2573 } 2574 } else { 2575 buf = *bufp; 2576 dataout = 1; /* we are given a buffer, so we are writing */ 2577 } 2578 } 2579 2580 /* 2581 * Build a CISS BMIC command to get the logical drive ID. 2582 */ 2583 cr->cr_data = buf; 2584 cr->cr_length = bufsize; 2585 if (!dataout) 2586 cr->cr_flags = CISS_REQ_DATAIN; 2587 2588 cc = cr->cr_cc; 2589 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2590 cc->header.address.physical.bus = 0; 2591 cc->header.address.physical.target = 0; 2592 cc->cdb.cdb_length = sizeof(*cbc); 2593 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2594 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2595 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ; 2596 cc->cdb.timeout = 0; 2597 2598 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 2599 bzero(cbc, sizeof(*cbc)); 2600 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ; 2601 cbc->bmic_opcode = opcode; 2602 cbc->size = htons((u_int16_t)bufsize); 2603 2604 out: 2605 if (error) { 2606 if (cr != NULL) 2607 ciss_release_request(cr); 2608 } else { 2609 *crp = cr; 2610 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 2611 *bufp = buf; 2612 } 2613 return(error); 2614 } 2615 2616 /************************************************************************ 2617 * Handle a command passed in from userspace. 2618 */ 2619 static int 2620 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc) 2621 { 2622 struct ciss_request *cr; 2623 struct ciss_command *cc; 2624 struct ciss_error_info *ce; 2625 int error = 0; 2626 2627 debug_called(1); 2628 2629 cr = NULL; 2630 2631 /* 2632 * Get a request. 2633 */ 2634 while (ciss_get_request(sc, &cr) != 0) 2635 msleep(sc, &sc->ciss_mtx, PPAUSE, "cissREQ", hz); 2636 cc = cr->cr_cc; 2637 2638 /* 2639 * Allocate an in-kernel databuffer if required, copy in user data. 2640 */ 2641 mtx_unlock(&sc->ciss_mtx); 2642 cr->cr_length = ioc->buf_size; 2643 if (ioc->buf_size > 0) { 2644 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 2645 error = ENOMEM; 2646 goto out_unlocked; 2647 } 2648 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) { 2649 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2650 goto out_unlocked; 2651 } 2652 } 2653 2654 /* 2655 * Build the request based on the user command. 2656 */ 2657 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address)); 2658 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb)); 2659 2660 /* XXX anything else to populate here? */ 2661 mtx_lock(&sc->ciss_mtx); 2662 2663 /* 2664 * Run the command. 2665 */ 2666 if ((error = ciss_synch_request(cr, 60 * 1000))) { 2667 debug(0, "request failed - %d", error); 2668 goto out; 2669 } 2670 2671 /* 2672 * Check to see if the command succeeded. 2673 */ 2674 ce = (struct ciss_error_info *)&(cc->sg[0]); 2675 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) == 0) 2676 bzero(ce, sizeof(*ce)); 2677 2678 /* 2679 * Copy the results back to the user. 2680 */ 2681 bcopy(ce, &ioc->error_info, sizeof(*ce)); 2682 mtx_unlock(&sc->ciss_mtx); 2683 if ((ioc->buf_size > 0) && 2684 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) { 2685 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2686 goto out_unlocked; 2687 } 2688 2689 /* done OK */ 2690 error = 0; 2691 2692 out_unlocked: 2693 mtx_lock(&sc->ciss_mtx); 2694 2695 out: 2696 if ((cr != NULL) && (cr->cr_data != NULL)) 2697 free(cr->cr_data, CISS_MALLOC_CLASS); 2698 if (cr != NULL) 2699 ciss_release_request(cr); 2700 return(error); 2701 } 2702 2703 /************************************************************************ 2704 * Map a request into bus-visible space, initialise the scatter/gather 2705 * list. 2706 */ 2707 static int 2708 ciss_map_request(struct ciss_request *cr) 2709 { 2710 struct ciss_softc *sc; 2711 int error = 0; 2712 2713 debug_called(2); 2714 2715 sc = cr->cr_sc; 2716 2717 /* check that mapping is necessary */ 2718 if (cr->cr_flags & CISS_REQ_MAPPED) 2719 return(0); 2720 2721 cr->cr_flags |= CISS_REQ_MAPPED; 2722 2723 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2724 BUS_DMASYNC_PREWRITE); 2725 2726 if (cr->cr_data != NULL) { 2727 if (cr->cr_flags & CISS_REQ_CCB) 2728 error = bus_dmamap_load_ccb(sc->ciss_buffer_dmat, 2729 cr->cr_datamap, cr->cr_data, 2730 ciss_request_map_helper, cr, 0); 2731 else 2732 error = bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, 2733 cr->cr_data, cr->cr_length, 2734 ciss_request_map_helper, cr, 0); 2735 if (error != 0) 2736 return (error); 2737 } else { 2738 /* 2739 * Post the command to the adapter. 2740 */ 2741 cr->cr_sg_tag = CISS_SG_NONE; 2742 cr->cr_flags |= CISS_REQ_BUSY; 2743 if (sc->ciss_perf) 2744 CISS_TL_PERF_POST_CMD(sc, cr); 2745 else 2746 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys); 2747 } 2748 2749 return(0); 2750 } 2751 2752 static void 2753 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2754 { 2755 struct ciss_command *cc; 2756 struct ciss_request *cr; 2757 struct ciss_softc *sc; 2758 int i; 2759 2760 debug_called(2); 2761 2762 cr = (struct ciss_request *)arg; 2763 sc = cr->cr_sc; 2764 cc = cr->cr_cc; 2765 2766 for (i = 0; i < nseg; i++) { 2767 cc->sg[i].address = segs[i].ds_addr; 2768 cc->sg[i].length = segs[i].ds_len; 2769 cc->sg[i].extension = 0; 2770 } 2771 /* we leave the s/g table entirely within the command */ 2772 cc->header.sg_in_list = nseg; 2773 cc->header.sg_total = nseg; 2774 2775 if (cr->cr_flags & CISS_REQ_DATAIN) 2776 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD); 2777 if (cr->cr_flags & CISS_REQ_DATAOUT) 2778 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE); 2779 2780 if (nseg == 0) 2781 cr->cr_sg_tag = CISS_SG_NONE; 2782 else if (nseg == 1) 2783 cr->cr_sg_tag = CISS_SG_1; 2784 else if (nseg == 2) 2785 cr->cr_sg_tag = CISS_SG_2; 2786 else if (nseg <= 4) 2787 cr->cr_sg_tag = CISS_SG_4; 2788 else if (nseg <= 8) 2789 cr->cr_sg_tag = CISS_SG_8; 2790 else if (nseg <= 16) 2791 cr->cr_sg_tag = CISS_SG_16; 2792 else if (nseg <= 32) 2793 cr->cr_sg_tag = CISS_SG_32; 2794 else 2795 cr->cr_sg_tag = CISS_SG_MAX; 2796 2797 /* 2798 * Post the command to the adapter. 2799 */ 2800 cr->cr_flags |= CISS_REQ_BUSY; 2801 if (sc->ciss_perf) 2802 CISS_TL_PERF_POST_CMD(sc, cr); 2803 else 2804 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys); 2805 } 2806 2807 /************************************************************************ 2808 * Unmap a request from bus-visible space. 2809 */ 2810 static void 2811 ciss_unmap_request(struct ciss_request *cr) 2812 { 2813 struct ciss_softc *sc; 2814 2815 debug_called(2); 2816 2817 sc = cr->cr_sc; 2818 2819 /* check that unmapping is necessary */ 2820 if ((cr->cr_flags & CISS_REQ_MAPPED) == 0) 2821 return; 2822 2823 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2824 BUS_DMASYNC_POSTWRITE); 2825 2826 if (cr->cr_data == NULL) 2827 goto out; 2828 2829 if (cr->cr_flags & CISS_REQ_DATAIN) 2830 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD); 2831 if (cr->cr_flags & CISS_REQ_DATAOUT) 2832 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE); 2833 2834 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap); 2835 out: 2836 cr->cr_flags &= ~CISS_REQ_MAPPED; 2837 } 2838 2839 /************************************************************************ 2840 * Attach the driver to CAM. 2841 * 2842 * We put all the logical drives on a single SCSI bus. 2843 */ 2844 static int 2845 ciss_cam_init(struct ciss_softc *sc) 2846 { 2847 int i, maxbus; 2848 2849 debug_called(1); 2850 2851 /* 2852 * Allocate a devq. We can reuse this for the masked physical 2853 * devices if we decide to export these as well. 2854 */ 2855 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests - 2)) == NULL) { 2856 ciss_printf(sc, "can't allocate CAM SIM queue\n"); 2857 return(ENOMEM); 2858 } 2859 2860 /* 2861 * Create a SIM. 2862 * 2863 * This naturally wastes a bit of memory. The alternative is to allocate 2864 * and register each bus as it is found, and then track them on a linked 2865 * list. Unfortunately, the driver has a few places where it needs to 2866 * look up the SIM based solely on bus number, and it's unclear whether 2867 * a list traversal would work for these situations. 2868 */ 2869 maxbus = max(sc->ciss_max_logical_bus, sc->ciss_max_physical_bus + 2870 CISS_PHYSICAL_BASE); 2871 sc->ciss_cam_sim = malloc(maxbus * sizeof(struct cam_sim*), 2872 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 2873 if (sc->ciss_cam_sim == NULL) { 2874 ciss_printf(sc, "can't allocate memory for controller SIM\n"); 2875 return(ENOMEM); 2876 } 2877 2878 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 2879 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2880 "ciss", sc, 2881 device_get_unit(sc->ciss_dev), 2882 &sc->ciss_mtx, 2883 2, 2884 sc->ciss_max_requests - 2, 2885 sc->ciss_cam_devq)) == NULL) { 2886 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2887 return(ENOMEM); 2888 } 2889 2890 /* 2891 * Register bus with this SIM. 2892 */ 2893 mtx_lock(&sc->ciss_mtx); 2894 if (i == 0 || sc->ciss_controllers[i].physical.bus != 0) { 2895 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) { 2896 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2897 mtx_unlock(&sc->ciss_mtx); 2898 return (ENXIO); 2899 } 2900 } 2901 mtx_unlock(&sc->ciss_mtx); 2902 } 2903 2904 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2905 CISS_PHYSICAL_BASE; i++) { 2906 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2907 "ciss", sc, 2908 device_get_unit(sc->ciss_dev), 2909 &sc->ciss_mtx, 1, 2910 sc->ciss_max_requests - 2, 2911 sc->ciss_cam_devq)) == NULL) { 2912 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2913 return (ENOMEM); 2914 } 2915 2916 mtx_lock(&sc->ciss_mtx); 2917 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) { 2918 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2919 mtx_unlock(&sc->ciss_mtx); 2920 return (ENXIO); 2921 } 2922 mtx_unlock(&sc->ciss_mtx); 2923 } 2924 2925 return(0); 2926 } 2927 2928 /************************************************************************ 2929 * Initiate a rescan of the 'logical devices' SIM 2930 */ 2931 static void 2932 ciss_cam_rescan_target(struct ciss_softc *sc, int bus, int target) 2933 { 2934 union ccb *ccb; 2935 2936 debug_called(1); 2937 2938 if ((ccb = xpt_alloc_ccb_nowait()) == NULL) { 2939 ciss_printf(sc, "rescan failed (can't allocate CCB)\n"); 2940 return; 2941 } 2942 2943 if (xpt_create_path(&ccb->ccb_h.path, NULL, 2944 cam_sim_path(sc->ciss_cam_sim[bus]), 2945 target, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 2946 ciss_printf(sc, "rescan failed (can't create path)\n"); 2947 xpt_free_ccb(ccb); 2948 return; 2949 } 2950 xpt_rescan(ccb); 2951 /* scan is now in progress */ 2952 } 2953 2954 /************************************************************************ 2955 * Handle requests coming from CAM 2956 */ 2957 static void 2958 ciss_cam_action(struct cam_sim *sim, union ccb *ccb) 2959 { 2960 struct ciss_softc *sc; 2961 struct ccb_scsiio *csio; 2962 int bus, target; 2963 int physical; 2964 2965 sc = cam_sim_softc(sim); 2966 bus = cam_sim_bus(sim); 2967 csio = (struct ccb_scsiio *)&ccb->csio; 2968 target = csio->ccb_h.target_id; 2969 physical = CISS_IS_PHYSICAL(bus); 2970 2971 switch (ccb->ccb_h.func_code) { 2972 2973 /* perform SCSI I/O */ 2974 case XPT_SCSI_IO: 2975 if (!ciss_cam_action_io(sim, csio)) 2976 return; 2977 break; 2978 2979 /* perform geometry calculations */ 2980 case XPT_CALC_GEOMETRY: 2981 { 2982 struct ccb_calc_geometry *ccg = &ccb->ccg; 2983 struct ciss_ldrive *ld; 2984 2985 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2986 2987 ld = NULL; 2988 if (!physical) 2989 ld = &sc->ciss_logical[bus][target]; 2990 2991 /* 2992 * Use the cached geometry settings unless the fault tolerance 2993 * is invalid. 2994 */ 2995 if (physical || ld->cl_geometry.fault_tolerance == 0xFF) { 2996 u_int32_t secs_per_cylinder; 2997 2998 ccg->heads = 255; 2999 ccg->secs_per_track = 32; 3000 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 3001 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 3002 } else { 3003 ccg->heads = ld->cl_geometry.heads; 3004 ccg->secs_per_track = ld->cl_geometry.sectors; 3005 ccg->cylinders = ntohs(ld->cl_geometry.cylinders); 3006 } 3007 ccb->ccb_h.status = CAM_REQ_CMP; 3008 break; 3009 } 3010 3011 /* handle path attribute inquiry */ 3012 case XPT_PATH_INQ: 3013 { 3014 struct ccb_pathinq *cpi = &ccb->cpi; 3015 int sg_length; 3016 3017 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 3018 3019 cpi->version_num = 1; 3020 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */ 3021 cpi->target_sprt = 0; 3022 cpi->hba_misc = 0; 3023 cpi->max_target = sc->ciss_cfg->max_logical_supported; 3024 cpi->max_lun = 0; /* 'logical drive' channel only */ 3025 cpi->initiator_id = sc->ciss_cfg->max_logical_supported; 3026 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 3027 strncpy(cpi->hba_vid, "msmith@freebsd.org", HBA_IDLEN); 3028 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 3029 cpi->unit_number = cam_sim_unit(sim); 3030 cpi->bus_id = cam_sim_bus(sim); 3031 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */ 3032 cpi->transport = XPORT_SPI; 3033 cpi->transport_version = 2; 3034 cpi->protocol = PROTO_SCSI; 3035 cpi->protocol_version = SCSI_REV_2; 3036 if (sc->ciss_cfg->max_sg_length == 0) { 3037 sg_length = 17; 3038 } else { 3039 /* XXX Fix for ZMR cards that advertise max_sg_length == 32 3040 * Confusing bit here. max_sg_length is usually a power of 2. We always 3041 * need to subtract 1 to account for partial pages. Then we need to 3042 * align on a valid PAGE_SIZE so we round down to the nearest power of 2. 3043 * Add 1 so we can then subtract it out in the assignment to maxio. 3044 * The reason for all these shenanigans is to create a maxio value that 3045 * creates IO operations to volumes that yield consistent operations 3046 * with good performance. 3047 */ 3048 sg_length = sc->ciss_cfg->max_sg_length - 1; 3049 sg_length = (1 << (fls(sg_length) - 1)) + 1; 3050 } 3051 cpi->maxio = (min(CISS_MAX_SG_ELEMENTS, sg_length) - 1) * PAGE_SIZE; 3052 ccb->ccb_h.status = CAM_REQ_CMP; 3053 break; 3054 } 3055 3056 case XPT_GET_TRAN_SETTINGS: 3057 { 3058 struct ccb_trans_settings *cts = &ccb->cts; 3059 int bus, target; 3060 struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi; 3061 struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi; 3062 3063 bus = cam_sim_bus(sim); 3064 target = cts->ccb_h.target_id; 3065 3066 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target); 3067 /* disconnect always OK */ 3068 cts->protocol = PROTO_SCSI; 3069 cts->protocol_version = SCSI_REV_2; 3070 cts->transport = XPORT_SPI; 3071 cts->transport_version = 2; 3072 3073 spi->valid = CTS_SPI_VALID_DISC; 3074 spi->flags = CTS_SPI_FLAGS_DISC_ENB; 3075 3076 scsi->valid = CTS_SCSI_VALID_TQ; 3077 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB; 3078 3079 cts->ccb_h.status = CAM_REQ_CMP; 3080 break; 3081 } 3082 3083 default: /* we can't do this */ 3084 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code); 3085 ccb->ccb_h.status = CAM_REQ_INVALID; 3086 break; 3087 } 3088 3089 xpt_done(ccb); 3090 } 3091 3092 /************************************************************************ 3093 * Handle a CAM SCSI I/O request. 3094 */ 3095 static int 3096 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio) 3097 { 3098 struct ciss_softc *sc; 3099 int bus, target; 3100 struct ciss_request *cr; 3101 struct ciss_command *cc; 3102 int error; 3103 3104 sc = cam_sim_softc(sim); 3105 bus = cam_sim_bus(sim); 3106 target = csio->ccb_h.target_id; 3107 3108 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun); 3109 3110 /* check that the CDB pointer is not to a physical address */ 3111 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) { 3112 debug(3, " CDB pointer is to physical address"); 3113 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3114 } 3115 3116 /* abandon aborted ccbs or those that have failed validation */ 3117 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 3118 debug(3, "abandoning CCB due to abort/validation failure"); 3119 return(EINVAL); 3120 } 3121 3122 /* handle emulation of some SCSI commands ourself */ 3123 if (ciss_cam_emulate(sc, csio)) 3124 return(0); 3125 3126 /* 3127 * Get a request to manage this command. If we can't, return the 3128 * ccb, freeze the queue and flag so that we unfreeze it when a 3129 * request completes. 3130 */ 3131 if ((error = ciss_get_request(sc, &cr)) != 0) { 3132 xpt_freeze_simq(sim, 1); 3133 sc->ciss_flags |= CISS_FLAG_BUSY; 3134 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3135 return(error); 3136 } 3137 3138 /* 3139 * Build the command. 3140 */ 3141 cc = cr->cr_cc; 3142 cr->cr_data = csio; 3143 cr->cr_length = csio->dxfer_len; 3144 cr->cr_complete = ciss_cam_complete; 3145 cr->cr_private = csio; 3146 3147 /* 3148 * Target the right logical volume. 3149 */ 3150 if (CISS_IS_PHYSICAL(bus)) 3151 cc->header.address = 3152 sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_address; 3153 else 3154 cc->header.address = 3155 sc->ciss_logical[bus][target].cl_address; 3156 cc->cdb.cdb_length = csio->cdb_len; 3157 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3158 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */ 3159 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 3160 cr->cr_flags = CISS_REQ_DATAOUT | CISS_REQ_CCB; 3161 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3162 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 3163 cr->cr_flags = CISS_REQ_DATAIN | CISS_REQ_CCB; 3164 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3165 } else { 3166 cr->cr_data = NULL; 3167 cr->cr_flags = 0; 3168 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 3169 } 3170 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1; 3171 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 3172 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len); 3173 } else { 3174 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len); 3175 } 3176 3177 /* 3178 * Submit the request to the adapter. 3179 * 3180 * Note that this may fail if we're unable to map the request (and 3181 * if we ever learn a transport layer other than simple, may fail 3182 * if the adapter rejects the command). 3183 */ 3184 if ((error = ciss_start(cr)) != 0) { 3185 xpt_freeze_simq(sim, 1); 3186 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3187 if (error == EINPROGRESS) { 3188 error = 0; 3189 } else { 3190 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3191 ciss_release_request(cr); 3192 } 3193 return(error); 3194 } 3195 3196 return(0); 3197 } 3198 3199 /************************************************************************ 3200 * Emulate SCSI commands the adapter doesn't handle as we might like. 3201 */ 3202 static int 3203 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio) 3204 { 3205 int bus, target; 3206 u_int8_t opcode; 3207 3208 target = csio->ccb_h.target_id; 3209 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3210 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 3211 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]; 3212 3213 if (CISS_IS_PHYSICAL(bus)) { 3214 if (sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_online != 1) { 3215 csio->ccb_h.status |= CAM_SEL_TIMEOUT; 3216 xpt_done((union ccb *)csio); 3217 return(1); 3218 } else 3219 return(0); 3220 } 3221 3222 /* 3223 * Handle requests for volumes that don't exist or are not online. 3224 * A selection timeout is slightly better than an illegal request. 3225 * Other errors might be better. 3226 */ 3227 if (sc->ciss_logical[bus][target].cl_status != CISS_LD_ONLINE) { 3228 csio->ccb_h.status |= CAM_SEL_TIMEOUT; 3229 xpt_done((union ccb *)csio); 3230 return(1); 3231 } 3232 3233 /* if we have to fake Synchronise Cache */ 3234 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) { 3235 /* 3236 * If this is a Synchronise Cache command, typically issued when 3237 * a device is closed, flush the adapter and complete now. 3238 */ 3239 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 3240 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) { 3241 ciss_flush_adapter(sc); 3242 csio->ccb_h.status |= CAM_REQ_CMP; 3243 xpt_done((union ccb *)csio); 3244 return(1); 3245 } 3246 } 3247 3248 /* 3249 * A CISS target can only ever have one lun per target. REPORT_LUNS requires 3250 * at least one LUN field to be pre created for us, so snag it and fill in 3251 * the least significant byte indicating 1 LUN here. Emulate the command 3252 * return to shut up warning on console of a CDB error. swb 3253 */ 3254 if (opcode == REPORT_LUNS && csio->dxfer_len > 0) { 3255 csio->data_ptr[3] = 8; 3256 csio->ccb_h.status |= CAM_REQ_CMP; 3257 xpt_done((union ccb *)csio); 3258 return(1); 3259 } 3260 3261 return(0); 3262 } 3263 3264 /************************************************************************ 3265 * Check for possibly-completed commands. 3266 */ 3267 static void 3268 ciss_cam_poll(struct cam_sim *sim) 3269 { 3270 cr_qhead_t qh; 3271 struct ciss_softc *sc = cam_sim_softc(sim); 3272 3273 debug_called(2); 3274 3275 STAILQ_INIT(&qh); 3276 if (sc->ciss_perf) 3277 ciss_perf_done(sc, &qh); 3278 else 3279 ciss_done(sc, &qh); 3280 ciss_complete(sc, &qh); 3281 } 3282 3283 /************************************************************************ 3284 * Handle completion of a command - pass results back through the CCB 3285 */ 3286 static void 3287 ciss_cam_complete(struct ciss_request *cr) 3288 { 3289 struct ciss_softc *sc; 3290 struct ciss_command *cc; 3291 struct ciss_error_info *ce; 3292 struct ccb_scsiio *csio; 3293 int scsi_status; 3294 int command_status; 3295 3296 debug_called(2); 3297 3298 sc = cr->cr_sc; 3299 cc = cr->cr_cc; 3300 ce = (struct ciss_error_info *)&(cc->sg[0]); 3301 csio = (struct ccb_scsiio *)cr->cr_private; 3302 3303 /* 3304 * Extract status values from request. 3305 */ 3306 ciss_report_request(cr, &command_status, &scsi_status); 3307 csio->scsi_status = scsi_status; 3308 3309 /* 3310 * Handle specific SCSI status values. 3311 */ 3312 switch(scsi_status) { 3313 /* no status due to adapter error */ 3314 case -1: 3315 debug(0, "adapter error"); 3316 csio->ccb_h.status |= CAM_REQ_CMP_ERR; 3317 break; 3318 3319 /* no status due to command completed OK */ 3320 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */ 3321 debug(2, "SCSI_STATUS_OK"); 3322 csio->ccb_h.status |= CAM_REQ_CMP; 3323 break; 3324 3325 /* check condition, sense data included */ 3326 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */ 3327 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d\n", 3328 ce->sense_length, ce->residual_count); 3329 bzero(&csio->sense_data, SSD_FULL_SIZE); 3330 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length); 3331 if (csio->sense_len > ce->sense_length) 3332 csio->sense_resid = csio->sense_len - ce->sense_length; 3333 else 3334 csio->sense_resid = 0; 3335 csio->resid = ce->residual_count; 3336 csio->ccb_h.status |= CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 3337 #ifdef CISS_DEBUG 3338 { 3339 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0]; 3340 debug(0, "sense key %x", scsi_get_sense_key(sns, csio->sense_len - 3341 csio->sense_resid, /*show_errors*/ 1)); 3342 } 3343 #endif 3344 break; 3345 3346 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */ 3347 debug(0, "SCSI_STATUS_BUSY"); 3348 csio->ccb_h.status |= CAM_SCSI_BUSY; 3349 break; 3350 3351 default: 3352 debug(0, "unknown status 0x%x", csio->scsi_status); 3353 csio->ccb_h.status |= CAM_REQ_CMP_ERR; 3354 break; 3355 } 3356 3357 /* handle post-command fixup */ 3358 ciss_cam_complete_fixup(sc, csio); 3359 3360 ciss_release_request(cr); 3361 if (sc->ciss_flags & CISS_FLAG_BUSY) { 3362 sc->ciss_flags &= ~CISS_FLAG_BUSY; 3363 if (csio->ccb_h.status & CAM_RELEASE_SIMQ) 3364 xpt_release_simq(xpt_path_sim(csio->ccb_h.path), 0); 3365 else 3366 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3367 } 3368 xpt_done((union ccb *)csio); 3369 } 3370 3371 /******************************************************************************** 3372 * Fix up the result of some commands here. 3373 */ 3374 static void 3375 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio) 3376 { 3377 struct scsi_inquiry_data *inq; 3378 struct ciss_ldrive *cl; 3379 uint8_t *cdb; 3380 int bus, target; 3381 3382 cdb = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 3383 (uint8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes; 3384 if (cdb[0] == INQUIRY && 3385 (cdb[1] & SI_EVPD) == 0 && 3386 (csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN && 3387 csio->dxfer_len >= SHORT_INQUIRY_LENGTH) { 3388 3389 inq = (struct scsi_inquiry_data *)csio->data_ptr; 3390 target = csio->ccb_h.target_id; 3391 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3392 3393 /* 3394 * If the controller is in JBOD mode, there are no logical volumes. 3395 * Let the disks be probed and dealt with via CAM. Else, mask off 3396 * the physical disks and setup the parts of the inq structure for 3397 * the logical volume. swb 3398 */ 3399 if( !(sc->ciss_id->PowerUPNvramFlags & PWR_UP_FLAG_JBOD_ENABLED)){ 3400 if (CISS_IS_PHYSICAL(bus)) { 3401 if (SID_TYPE(inq) == T_DIRECT) 3402 inq->device = (inq->device & 0xe0) | T_NODEVICE; 3403 return; 3404 } 3405 cl = &sc->ciss_logical[bus][target]; 3406 3407 padstr(inq->vendor, "HP", 3408 SID_VENDOR_SIZE); 3409 padstr(inq->product, 3410 ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 3411 SID_PRODUCT_SIZE); 3412 padstr(inq->revision, 3413 ciss_name_ldrive_status(cl->cl_lstatus->status), 3414 SID_REVISION_SIZE); 3415 } 3416 } 3417 } 3418 3419 3420 /******************************************************************************** 3421 * Name the device at (target) 3422 * 3423 * XXX is this strictly correct? 3424 */ 3425 static int 3426 ciss_name_device(struct ciss_softc *sc, int bus, int target) 3427 { 3428 struct cam_periph *periph; 3429 struct cam_path *path; 3430 int status; 3431 3432 if (CISS_IS_PHYSICAL(bus)) 3433 return (0); 3434 3435 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim[bus]), 3436 target, 0); 3437 3438 if (status == CAM_REQ_CMP) { 3439 mtx_lock(&sc->ciss_mtx); 3440 xpt_path_lock(path); 3441 periph = cam_periph_find(path, NULL); 3442 xpt_path_unlock(path); 3443 mtx_unlock(&sc->ciss_mtx); 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 bus, target; 4020 int rescan_ld; 4021 4022 debug_called(2); 4023 4024 bus = cn->device.physical.bus; 4025 target = cn->data.logical_status.logical_drive; 4026 ld = &sc->ciss_logical[bus][target]; 4027 4028 switch (cn->subclass) { 4029 case CISS_NOTIFY_LOGICAL_STATUS: 4030 switch (cn->detail) { 4031 case 0: 4032 ciss_name_device(sc, bus, target); 4033 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n", 4034 cn->data.logical_status.logical_drive, ld->cl_name, 4035 ciss_name_ldrive_status(cn->data.logical_status.previous_state), 4036 ciss_name_ldrive_status(cn->data.logical_status.new_state), 4037 cn->data.logical_status.spare_state, 4038 "\20\1configured\2rebuilding\3failed\4in use\5available\n"); 4039 4040 /* 4041 * Update our idea of the drive's status. 4042 */ 4043 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 rescan_ld = (cn->data.logical_status.previous_state != 4051 cn->data.logical_status.new_state) ? 1 : 0; 4052 if (rescan_ld) { 4053 ld->cl_update = 1; 4054 ciss_notify_rescan_logical(sc); 4055 } 4056 4057 break; 4058 4059 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */ 4060 ciss_name_device(sc, bus, target); 4061 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n", 4062 cn->data.logical_status.logical_drive, ld->cl_name); 4063 ciss_accept_media(sc, ld); 4064 4065 ld->cl_update = 1; 4066 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 4067 ciss_notify_rescan_logical(sc); 4068 break; 4069 4070 case 2: 4071 case 3: 4072 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n", 4073 cn->data.rebuild_aborted.logical_drive, 4074 ld->cl_name, 4075 (cn->detail == 2) ? "read" : "write"); 4076 break; 4077 } 4078 break; 4079 4080 case CISS_NOTIFY_LOGICAL_ERROR: 4081 if (cn->detail == 0) { 4082 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n", 4083 cn->data.io_error.logical_drive, 4084 ld->cl_name, 4085 cn->data.io_error.failure_bus, 4086 cn->data.io_error.failure_drive); 4087 /* XXX should we take the drive down at this point, or will we be told? */ 4088 } 4089 break; 4090 4091 case CISS_NOTIFY_LOGICAL_SURFACE: 4092 if (cn->detail == 0) 4093 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n", 4094 cn->data.consistency_completed.logical_drive, 4095 ld->cl_name); 4096 break; 4097 } 4098 } 4099 4100 /************************************************************************ 4101 * Handle a notify event relating to the status of a physical drive. 4102 */ 4103 static void 4104 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn) 4105 { 4106 } 4107 4108 /************************************************************************ 4109 * Handle a notify event relating to the status of a physical drive. 4110 */ 4111 static void 4112 ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn) 4113 { 4114 struct ciss_lun_report *cll = NULL; 4115 int bus, target; 4116 4117 switch (cn->subclass) { 4118 case CISS_NOTIFY_HOTPLUG_PHYSICAL: 4119 case CISS_NOTIFY_HOTPLUG_NONDISK: 4120 bus = CISS_BIG_MAP_BUS(sc, cn->data.drive.big_physical_drive_number); 4121 target = 4122 CISS_BIG_MAP_TARGET(sc, cn->data.drive.big_physical_drive_number); 4123 4124 if (cn->detail == 0) { 4125 /* 4126 * Mark the device offline so that it'll start producing selection 4127 * timeouts to the upper layer. 4128 */ 4129 if ((bus >= 0) && (target >= 0)) 4130 sc->ciss_physical[bus][target].cp_online = 0; 4131 } else { 4132 /* 4133 * Rescan the physical lun list for new items 4134 */ 4135 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 4136 sc->ciss_cfg->max_physical_supported); 4137 if (cll == NULL) { 4138 ciss_printf(sc, "Warning, cannot get physical lun list\n"); 4139 break; 4140 } 4141 ciss_filter_physical(sc, cll); 4142 } 4143 break; 4144 4145 default: 4146 ciss_printf(sc, "Unknown hotplug event %d\n", cn->subclass); 4147 return; 4148 } 4149 4150 if (cll != NULL) 4151 free(cll, CISS_MALLOC_CLASS); 4152 } 4153 4154 /************************************************************************ 4155 * Handle deferred processing of notify events. Notify events may need 4156 * sleep which is unsafe during an interrupt. 4157 */ 4158 static void 4159 ciss_notify_thread(void *arg) 4160 { 4161 struct ciss_softc *sc; 4162 struct ciss_request *cr; 4163 struct ciss_notify *cn; 4164 4165 sc = (struct ciss_softc *)arg; 4166 #if __FreeBSD_version >= 500000 4167 mtx_lock(&sc->ciss_mtx); 4168 #endif 4169 4170 for (;;) { 4171 if (STAILQ_EMPTY(&sc->ciss_notify) != 0 && 4172 (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) == 0) { 4173 msleep(&sc->ciss_notify, &sc->ciss_mtx, PUSER, "idle", 0); 4174 } 4175 4176 if (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) 4177 break; 4178 4179 cr = ciss_dequeue_notify(sc); 4180 4181 if (cr == NULL) 4182 panic("cr null"); 4183 cn = (struct ciss_notify *)cr->cr_data; 4184 4185 switch (cn->class) { 4186 case CISS_NOTIFY_HOTPLUG: 4187 ciss_notify_hotplug(sc, cn); 4188 break; 4189 case CISS_NOTIFY_LOGICAL: 4190 ciss_notify_logical(sc, cn); 4191 break; 4192 case CISS_NOTIFY_PHYSICAL: 4193 ciss_notify_physical(sc, cn); 4194 break; 4195 } 4196 4197 ciss_release_request(cr); 4198 4199 } 4200 sc->ciss_notify_thread = NULL; 4201 wakeup(&sc->ciss_notify_thread); 4202 4203 #if __FreeBSD_version >= 500000 4204 mtx_unlock(&sc->ciss_mtx); 4205 #endif 4206 kproc_exit(0); 4207 } 4208 4209 /************************************************************************ 4210 * Start the notification kernel thread. 4211 */ 4212 static void 4213 ciss_spawn_notify_thread(struct ciss_softc *sc) 4214 { 4215 4216 #if __FreeBSD_version > 500005 4217 if (kproc_create((void(*)(void *))ciss_notify_thread, sc, 4218 &sc->ciss_notify_thread, 0, 0, "ciss_notify%d", 4219 device_get_unit(sc->ciss_dev))) 4220 #else 4221 if (kproc_create((void(*)(void *))ciss_notify_thread, sc, 4222 &sc->ciss_notify_thread, "ciss_notify%d", 4223 device_get_unit(sc->ciss_dev))) 4224 #endif 4225 panic("Could not create notify thread\n"); 4226 } 4227 4228 /************************************************************************ 4229 * Kill the notification kernel thread. 4230 */ 4231 static void 4232 ciss_kill_notify_thread(struct ciss_softc *sc) 4233 { 4234 4235 if (sc->ciss_notify_thread == NULL) 4236 return; 4237 4238 sc->ciss_flags |= CISS_FLAG_THREAD_SHUT; 4239 wakeup(&sc->ciss_notify); 4240 msleep(&sc->ciss_notify_thread, &sc->ciss_mtx, PUSER, "thtrm", 0); 4241 } 4242 4243 /************************************************************************ 4244 * Print a request. 4245 */ 4246 static void 4247 ciss_print_request(struct ciss_request *cr) 4248 { 4249 struct ciss_softc *sc; 4250 struct ciss_command *cc; 4251 int i; 4252 4253 sc = cr->cr_sc; 4254 cc = cr->cr_cc; 4255 4256 ciss_printf(sc, "REQUEST @ %p\n", cr); 4257 ciss_printf(sc, " data %p/%d tag %d flags %b\n", 4258 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags, 4259 "\20\1mapped\2sleep\3poll\4dataout\5datain\n"); 4260 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n", 4261 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag); 4262 switch(cc->header.address.mode.mode) { 4263 case CISS_HDR_ADDRESS_MODE_PERIPHERAL: 4264 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL: 4265 ciss_printf(sc, " physical bus %d target %d\n", 4266 cc->header.address.physical.bus, cc->header.address.physical.target); 4267 break; 4268 case CISS_HDR_ADDRESS_MODE_LOGICAL: 4269 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun); 4270 break; 4271 } 4272 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n", 4273 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" : 4274 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" : 4275 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??", 4276 cc->cdb.cdb_length, 4277 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" : 4278 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??", 4279 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" : 4280 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" : 4281 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" : 4282 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" : 4283 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??"); 4284 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " "); 4285 4286 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) { 4287 /* XXX print error info */ 4288 } else { 4289 /* since we don't use chained s/g, don't support it here */ 4290 for (i = 0; i < cc->header.sg_in_list; i++) { 4291 if ((i % 4) == 0) 4292 ciss_printf(sc, " "); 4293 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length); 4294 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1))) 4295 printf("\n"); 4296 } 4297 } 4298 } 4299 4300 /************************************************************************ 4301 * Print information about the status of a logical drive. 4302 */ 4303 static void 4304 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld) 4305 { 4306 int bus, target, i; 4307 4308 if (ld->cl_lstatus == NULL) { 4309 printf("does not exist\n"); 4310 return; 4311 } 4312 4313 /* print drive status */ 4314 switch(ld->cl_lstatus->status) { 4315 case CISS_LSTATUS_OK: 4316 printf("online\n"); 4317 break; 4318 case CISS_LSTATUS_INTERIM_RECOVERY: 4319 printf("in interim recovery mode\n"); 4320 break; 4321 case CISS_LSTATUS_READY_RECOVERY: 4322 printf("ready to begin recovery\n"); 4323 break; 4324 case CISS_LSTATUS_RECOVERING: 4325 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4326 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4327 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n", 4328 bus, target, ld->cl_lstatus->blocks_to_recover); 4329 break; 4330 case CISS_LSTATUS_EXPANDING: 4331 printf("being expanded, %u blocks remaining\n", 4332 ld->cl_lstatus->blocks_to_recover); 4333 break; 4334 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4335 printf("queued for expansion\n"); 4336 break; 4337 case CISS_LSTATUS_FAILED: 4338 printf("queued for expansion\n"); 4339 break; 4340 case CISS_LSTATUS_WRONG_PDRIVE: 4341 printf("wrong physical drive inserted\n"); 4342 break; 4343 case CISS_LSTATUS_MISSING_PDRIVE: 4344 printf("missing a needed physical drive\n"); 4345 break; 4346 case CISS_LSTATUS_BECOMING_READY: 4347 printf("becoming ready\n"); 4348 break; 4349 } 4350 4351 /* print failed physical drives */ 4352 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) { 4353 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]); 4354 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]); 4355 if (bus == -1) 4356 continue; 4357 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target, 4358 ld->cl_lstatus->drive_failure_map[i]); 4359 } 4360 } 4361 4362 #ifdef CISS_DEBUG 4363 #include "opt_ddb.h" 4364 #ifdef DDB 4365 #include <ddb/ddb.h> 4366 /************************************************************************ 4367 * Print information about the controller/driver. 4368 */ 4369 static void 4370 ciss_print_adapter(struct ciss_softc *sc) 4371 { 4372 int i, j; 4373 4374 ciss_printf(sc, "ADAPTER:\n"); 4375 for (i = 0; i < CISSQ_COUNT; i++) { 4376 ciss_printf(sc, "%s %d/%d\n", 4377 i == 0 ? "free" : 4378 i == 1 ? "busy" : "complete", 4379 sc->ciss_qstat[i].q_length, 4380 sc->ciss_qstat[i].q_max); 4381 } 4382 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests); 4383 ciss_printf(sc, "flags %b\n", sc->ciss_flags, 4384 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n"); 4385 4386 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 4387 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) { 4388 ciss_printf(sc, "LOGICAL DRIVE %d: ", i); 4389 ciss_print_ldrive(sc, &sc->ciss_logical[i][j]); 4390 } 4391 } 4392 4393 /* XXX Should physical drives be printed out here? */ 4394 4395 for (i = 1; i < sc->ciss_max_requests; i++) 4396 ciss_print_request(sc->ciss_request + i); 4397 } 4398 4399 /* DDB hook */ 4400 DB_COMMAND(ciss_prt, db_ciss_prt) 4401 { 4402 struct ciss_softc *sc; 4403 devclass_t dc; 4404 int maxciss, i; 4405 4406 dc = devclass_find("ciss"); 4407 if ( dc == NULL ) { 4408 printf("%s: can't find devclass!\n", __func__); 4409 return; 4410 } 4411 maxciss = devclass_get_maxunit(dc); 4412 for (i = 0; i < maxciss; i++) { 4413 sc = devclass_get_softc(dc, i); 4414 ciss_print_adapter(sc); 4415 } 4416 } 4417 #endif 4418 #endif 4419 4420 /************************************************************************ 4421 * Return a name for a logical drive status value. 4422 */ 4423 static const char * 4424 ciss_name_ldrive_status(int status) 4425 { 4426 switch (status) { 4427 case CISS_LSTATUS_OK: 4428 return("OK"); 4429 case CISS_LSTATUS_FAILED: 4430 return("failed"); 4431 case CISS_LSTATUS_NOT_CONFIGURED: 4432 return("not configured"); 4433 case CISS_LSTATUS_INTERIM_RECOVERY: 4434 return("interim recovery"); 4435 case CISS_LSTATUS_READY_RECOVERY: 4436 return("ready for recovery"); 4437 case CISS_LSTATUS_RECOVERING: 4438 return("recovering"); 4439 case CISS_LSTATUS_WRONG_PDRIVE: 4440 return("wrong physical drive inserted"); 4441 case CISS_LSTATUS_MISSING_PDRIVE: 4442 return("missing physical drive"); 4443 case CISS_LSTATUS_EXPANDING: 4444 return("expanding"); 4445 case CISS_LSTATUS_BECOMING_READY: 4446 return("becoming ready"); 4447 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4448 return("queued for expansion"); 4449 } 4450 return("unknown status"); 4451 } 4452 4453 /************************************************************************ 4454 * Return an online/offline/nonexistent value for a logical drive 4455 * status value. 4456 */ 4457 static int 4458 ciss_decode_ldrive_status(int status) 4459 { 4460 switch(status) { 4461 case CISS_LSTATUS_NOT_CONFIGURED: 4462 return(CISS_LD_NONEXISTENT); 4463 4464 case CISS_LSTATUS_OK: 4465 case CISS_LSTATUS_INTERIM_RECOVERY: 4466 case CISS_LSTATUS_READY_RECOVERY: 4467 case CISS_LSTATUS_RECOVERING: 4468 case CISS_LSTATUS_EXPANDING: 4469 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4470 return(CISS_LD_ONLINE); 4471 4472 case CISS_LSTATUS_FAILED: 4473 case CISS_LSTATUS_WRONG_PDRIVE: 4474 case CISS_LSTATUS_MISSING_PDRIVE: 4475 case CISS_LSTATUS_BECOMING_READY: 4476 default: 4477 return(CISS_LD_OFFLINE); 4478 } 4479 } 4480 4481 4482 /************************************************************************ 4483 * Return a name for a logical drive's organisation. 4484 */ 4485 static const char * 4486 ciss_name_ldrive_org(int org) 4487 { 4488 switch(org) { 4489 case CISS_LDRIVE_RAID0: 4490 return("RAID 0"); 4491 case CISS_LDRIVE_RAID1: 4492 return("RAID 1(1+0)"); 4493 case CISS_LDRIVE_RAID4: 4494 return("RAID 4"); 4495 case CISS_LDRIVE_RAID5: 4496 return("RAID 5"); 4497 case CISS_LDRIVE_RAID51: 4498 return("RAID 5+1"); 4499 case CISS_LDRIVE_RAIDADG: 4500 return("RAID ADG"); 4501 } 4502 return("unkown"); 4503 } 4504 4505 /************************************************************************ 4506 * Return a name for a command status value. 4507 */ 4508 static const char * 4509 ciss_name_command_status(int status) 4510 { 4511 switch(status) { 4512 case CISS_CMD_STATUS_SUCCESS: 4513 return("success"); 4514 case CISS_CMD_STATUS_TARGET_STATUS: 4515 return("target status"); 4516 case CISS_CMD_STATUS_DATA_UNDERRUN: 4517 return("data underrun"); 4518 case CISS_CMD_STATUS_DATA_OVERRUN: 4519 return("data overrun"); 4520 case CISS_CMD_STATUS_INVALID_COMMAND: 4521 return("invalid command"); 4522 case CISS_CMD_STATUS_PROTOCOL_ERROR: 4523 return("protocol error"); 4524 case CISS_CMD_STATUS_HARDWARE_ERROR: 4525 return("hardware error"); 4526 case CISS_CMD_STATUS_CONNECTION_LOST: 4527 return("connection lost"); 4528 case CISS_CMD_STATUS_ABORTED: 4529 return("aborted"); 4530 case CISS_CMD_STATUS_ABORT_FAILED: 4531 return("abort failed"); 4532 case CISS_CMD_STATUS_UNSOLICITED_ABORT: 4533 return("unsolicited abort"); 4534 case CISS_CMD_STATUS_TIMEOUT: 4535 return("timeout"); 4536 case CISS_CMD_STATUS_UNABORTABLE: 4537 return("unabortable"); 4538 } 4539 return("unknown status"); 4540 } 4541 4542 /************************************************************************ 4543 * Handle an open on the control device. 4544 */ 4545 static int 4546 ciss_open(struct cdev *dev, int flags, int fmt, struct thread *p) 4547 { 4548 struct ciss_softc *sc; 4549 4550 debug_called(1); 4551 4552 sc = (struct ciss_softc *)dev->si_drv1; 4553 4554 /* we might want to veto if someone already has us open */ 4555 4556 mtx_lock(&sc->ciss_mtx); 4557 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN; 4558 mtx_unlock(&sc->ciss_mtx); 4559 return(0); 4560 } 4561 4562 /************************************************************************ 4563 * Handle the last close on the control device. 4564 */ 4565 static int 4566 ciss_close(struct cdev *dev, int flags, int fmt, struct thread *p) 4567 { 4568 struct ciss_softc *sc; 4569 4570 debug_called(1); 4571 4572 sc = (struct ciss_softc *)dev->si_drv1; 4573 4574 mtx_lock(&sc->ciss_mtx); 4575 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN; 4576 mtx_unlock(&sc->ciss_mtx); 4577 return (0); 4578 } 4579 4580 /******************************************************************************** 4581 * Handle adapter-specific control operations. 4582 * 4583 * Note that the API here is compatible with the Linux driver, in order to 4584 * simplify the porting of Compaq's userland tools. 4585 */ 4586 static int 4587 ciss_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag, struct thread *p) 4588 { 4589 struct ciss_softc *sc; 4590 IOCTL_Command_struct *ioc = (IOCTL_Command_struct *)addr; 4591 #ifdef __amd64__ 4592 IOCTL_Command_struct32 *ioc32 = (IOCTL_Command_struct32 *)addr; 4593 IOCTL_Command_struct ioc_swab; 4594 #endif 4595 int error; 4596 4597 debug_called(1); 4598 4599 sc = (struct ciss_softc *)dev->si_drv1; 4600 error = 0; 4601 mtx_lock(&sc->ciss_mtx); 4602 4603 switch(cmd) { 4604 case CCISS_GETQSTATS: 4605 { 4606 union ciss_statrequest *cr = (union ciss_statrequest *)addr; 4607 4608 switch (cr->cs_item) { 4609 case CISSQ_FREE: 4610 case CISSQ_NOTIFY: 4611 bcopy(&sc->ciss_qstat[cr->cs_item], &cr->cs_qstat, 4612 sizeof(struct ciss_qstat)); 4613 break; 4614 default: 4615 error = ENOIOCTL; 4616 break; 4617 } 4618 4619 break; 4620 } 4621 4622 case CCISS_GETPCIINFO: 4623 { 4624 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr; 4625 4626 pis->bus = pci_get_bus(sc->ciss_dev); 4627 pis->dev_fn = pci_get_slot(sc->ciss_dev); 4628 pis->board_id = (pci_get_subvendor(sc->ciss_dev) << 16) | 4629 pci_get_subdevice(sc->ciss_dev); 4630 4631 break; 4632 } 4633 4634 case CCISS_GETINTINFO: 4635 { 4636 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4637 4638 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay; 4639 cis->count = sc->ciss_cfg->interrupt_coalesce_count; 4640 4641 break; 4642 } 4643 4644 case CCISS_SETINTINFO: 4645 { 4646 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4647 4648 if ((cis->delay == 0) && (cis->count == 0)) { 4649 error = EINVAL; 4650 break; 4651 } 4652 4653 /* 4654 * XXX apparently this is only safe if the controller is idle, 4655 * we should suspend it before doing this. 4656 */ 4657 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay; 4658 sc->ciss_cfg->interrupt_coalesce_count = cis->count; 4659 4660 if (ciss_update_config(sc)) 4661 error = EIO; 4662 4663 /* XXX resume the controller here */ 4664 break; 4665 } 4666 4667 case CCISS_GETNODENAME: 4668 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr, 4669 sizeof(NodeName_type)); 4670 break; 4671 4672 case CCISS_SETNODENAME: 4673 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name, 4674 sizeof(NodeName_type)); 4675 if (ciss_update_config(sc)) 4676 error = EIO; 4677 break; 4678 4679 case CCISS_GETHEARTBEAT: 4680 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat; 4681 break; 4682 4683 case CCISS_GETBUSTYPES: 4684 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types; 4685 break; 4686 4687 case CCISS_GETFIRMVER: 4688 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr, 4689 sizeof(FirmwareVer_type)); 4690 break; 4691 4692 case CCISS_GETDRIVERVER: 4693 *(DriverVer_type *)addr = CISS_DRIVER_VERSION; 4694 break; 4695 4696 case CCISS_REVALIDVOLS: 4697 /* 4698 * This is a bit ugly; to do it "right" we really need 4699 * to find any disks that have changed, kick CAM off them, 4700 * then rescan only these disks. It'd be nice if they 4701 * a) told us which disk(s) they were going to play with, 4702 * and b) which ones had arrived. 8( 4703 */ 4704 break; 4705 4706 #ifdef __amd64__ 4707 case CCISS_PASSTHRU32: 4708 ioc_swab.LUN_info = ioc32->LUN_info; 4709 ioc_swab.Request = ioc32->Request; 4710 ioc_swab.error_info = ioc32->error_info; 4711 ioc_swab.buf_size = ioc32->buf_size; 4712 ioc_swab.buf = (u_int8_t *)(uintptr_t)ioc32->buf; 4713 ioc = &ioc_swab; 4714 /* FALLTHROUGH */ 4715 #endif 4716 4717 case CCISS_PASSTHRU: 4718 error = ciss_user_command(sc, ioc); 4719 break; 4720 4721 default: 4722 debug(0, "unknown ioctl 0x%lx", cmd); 4723 4724 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO); 4725 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO); 4726 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO); 4727 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME); 4728 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME); 4729 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT); 4730 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES); 4731 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER); 4732 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER); 4733 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS); 4734 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU); 4735 4736 error = ENOIOCTL; 4737 break; 4738 } 4739 4740 mtx_unlock(&sc->ciss_mtx); 4741 return(error); 4742 } 4743