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->big_map_supported) { 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_bus_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 } 1278 1279 out: 1280 if (error) { 1281 if (sc->ciss_id != NULL) { 1282 free(sc->ciss_id, CISS_MALLOC_CLASS); 1283 sc->ciss_id = NULL; 1284 } 1285 } 1286 if (cr != NULL) 1287 ciss_release_request(cr); 1288 return(error); 1289 } 1290 1291 /************************************************************************ 1292 * Helper routine for generating a list of logical and physical luns. 1293 */ 1294 static struct ciss_lun_report * 1295 ciss_report_luns(struct ciss_softc *sc, int opcode, int nunits) 1296 { 1297 struct ciss_request *cr; 1298 struct ciss_command *cc; 1299 struct ciss_report_cdb *crc; 1300 struct ciss_lun_report *cll; 1301 int command_status; 1302 int report_size; 1303 int error = 0; 1304 1305 debug_called(1); 1306 1307 cr = NULL; 1308 cll = NULL; 1309 1310 /* 1311 * Get a request, allocate storage for the address list. 1312 */ 1313 if ((error = ciss_get_request(sc, &cr)) != 0) 1314 goto out; 1315 report_size = sizeof(*cll) + nunits * sizeof(union ciss_device_address); 1316 if ((cll = malloc(report_size, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 1317 ciss_printf(sc, "can't allocate memory for lun report\n"); 1318 error = ENOMEM; 1319 goto out; 1320 } 1321 1322 /* 1323 * Build the Report Logical/Physical LUNs command. 1324 */ 1325 cc = cr->cr_cc; 1326 cr->cr_data = cll; 1327 cr->cr_length = report_size; 1328 cr->cr_flags = CISS_REQ_DATAIN; 1329 1330 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 1331 cc->header.address.physical.bus = 0; 1332 cc->header.address.physical.target = 0; 1333 cc->cdb.cdb_length = sizeof(*crc); 1334 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1335 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1336 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1337 cc->cdb.timeout = 30; /* XXX better suggestions? */ 1338 1339 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]); 1340 bzero(crc, sizeof(*crc)); 1341 crc->opcode = opcode; 1342 crc->length = htonl(report_size); /* big-endian field */ 1343 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */ 1344 1345 /* 1346 * Submit the request and wait for it to complete. (timeout 1347 * here should be much greater than above) 1348 */ 1349 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1350 ciss_printf(sc, "error sending %d LUN command (%d)\n", opcode, error); 1351 goto out; 1352 } 1353 1354 /* 1355 * Check response. Note that data over/underrun is OK. 1356 */ 1357 ciss_report_request(cr, &command_status, NULL); 1358 switch(command_status) { 1359 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1360 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */ 1361 break; 1362 case CISS_CMD_STATUS_DATA_OVERRUN: 1363 ciss_printf(sc, "WARNING: more units than driver limit (%d)\n", 1364 sc->ciss_cfg->max_logical_supported); 1365 break; 1366 default: 1367 ciss_printf(sc, "error detecting logical drive configuration (%s)\n", 1368 ciss_name_command_status(command_status)); 1369 error = EIO; 1370 goto out; 1371 } 1372 ciss_release_request(cr); 1373 cr = NULL; 1374 1375 out: 1376 if (cr != NULL) 1377 ciss_release_request(cr); 1378 if (error && cll != NULL) { 1379 free(cll, CISS_MALLOC_CLASS); 1380 cll = NULL; 1381 } 1382 return(cll); 1383 } 1384 1385 /************************************************************************ 1386 * Find logical drives on the adapter. 1387 */ 1388 static int 1389 ciss_init_logical(struct ciss_softc *sc) 1390 { 1391 struct ciss_lun_report *cll; 1392 int error = 0, i, j; 1393 int ndrives; 1394 1395 debug_called(1); 1396 1397 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 1398 sc->ciss_cfg->max_logical_supported); 1399 if (cll == NULL) { 1400 error = ENXIO; 1401 goto out; 1402 } 1403 1404 /* sanity-check reply */ 1405 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1406 if ((ndrives < 0) || (ndrives > sc->ciss_cfg->max_logical_supported)) { 1407 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n", 1408 ndrives, sc->ciss_cfg->max_logical_supported); 1409 error = ENXIO; 1410 goto out; 1411 } 1412 1413 /* 1414 * Save logical drive information. 1415 */ 1416 if (bootverbose) { 1417 ciss_printf(sc, "%d logical drive%s\n", 1418 ndrives, (ndrives > 1 || ndrives == 0) ? "s" : ""); 1419 } 1420 1421 sc->ciss_logical = 1422 malloc(sc->ciss_max_logical_bus * sizeof(struct ciss_ldrive *), 1423 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1424 if (sc->ciss_logical == NULL) { 1425 error = ENXIO; 1426 goto out; 1427 } 1428 1429 for (i = 0; i <= sc->ciss_max_logical_bus; i++) { 1430 sc->ciss_logical[i] = 1431 malloc(sc->ciss_cfg->max_logical_supported * 1432 sizeof(struct ciss_ldrive), 1433 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1434 if (sc->ciss_logical[i] == NULL) { 1435 error = ENXIO; 1436 goto out; 1437 } 1438 1439 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) 1440 sc->ciss_logical[i][j].cl_status = CISS_LD_NONEXISTENT; 1441 } 1442 1443 1444 for (i = 0; i < sc->ciss_cfg->max_logical_supported; i++) { 1445 if (i < ndrives) { 1446 struct ciss_ldrive *ld; 1447 int bus, target; 1448 1449 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 1450 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 1451 ld = &sc->ciss_logical[bus][target]; 1452 1453 ld->cl_address = cll->lun[i]; 1454 ld->cl_controller = &sc->ciss_controllers[bus]; 1455 if (ciss_identify_logical(sc, ld) != 0) 1456 continue; 1457 /* 1458 * If the drive has had media exchanged, we should bring it online. 1459 */ 1460 if (ld->cl_lstatus->media_exchanged) 1461 ciss_accept_media(sc, ld); 1462 1463 } 1464 } 1465 1466 out: 1467 if (cll != NULL) 1468 free(cll, CISS_MALLOC_CLASS); 1469 return(error); 1470 } 1471 1472 static int 1473 ciss_init_physical(struct ciss_softc *sc) 1474 { 1475 struct ciss_lun_report *cll; 1476 int error = 0, i; 1477 int nphys; 1478 int bus, target; 1479 1480 debug_called(1); 1481 1482 bus = 0; 1483 target = 0; 1484 1485 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 1486 sc->ciss_cfg->max_physical_supported); 1487 if (cll == NULL) { 1488 error = ENXIO; 1489 goto out; 1490 } 1491 1492 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1493 1494 if (bootverbose) { 1495 ciss_printf(sc, "%d physical device%s\n", 1496 nphys, (nphys > 1 || nphys == 0) ? "s" : ""); 1497 } 1498 1499 /* 1500 * Figure out the bus mapping. 1501 * Logical buses include both the local logical bus for local arrays and 1502 * proxy buses for remote arrays. Physical buses are numbered by the 1503 * controller and represent physical buses that hold physical devices. 1504 * We shift these bus numbers so that everything fits into a single flat 1505 * numbering space for CAM. Logical buses occupy the first 32 CAM bus 1506 * numbers, and the physical bus numbers are shifted to be above that. 1507 * This results in the various driver arrays being indexed as follows: 1508 * 1509 * ciss_controllers[] - indexed by logical bus 1510 * ciss_cam_sim[] - indexed by both logical and physical, with physical 1511 * being shifted by 32. 1512 * ciss_logical[][] - indexed by logical bus 1513 * ciss_physical[][] - indexed by physical bus 1514 * 1515 * XXX This is getting more and more hackish. CISS really doesn't play 1516 * well with a standard SCSI model; devices are addressed via magic 1517 * cookies, not via b/t/l addresses. Since there is no way to store 1518 * the cookie in the CAM device object, we have to keep these lookup 1519 * tables handy so that the devices can be found quickly at the cost 1520 * of wasting memory and having a convoluted lookup scheme. This 1521 * driver should probably be converted to block interface. 1522 */ 1523 /* 1524 * If the L2 and L3 SCSI addresses are 0, this signifies a proxy 1525 * controller. A proxy controller is another physical controller 1526 * behind the primary PCI controller. We need to know about this 1527 * so that BMIC commands can be properly targeted. There can be 1528 * proxy controllers attached to a single PCI controller, so 1529 * find the highest numbered one so the array can be properly 1530 * sized. 1531 */ 1532 sc->ciss_max_logical_bus = 1; 1533 for (i = 0; i < nphys; i++) { 1534 if (cll->lun[i].physical.extra_address == 0) { 1535 bus = cll->lun[i].physical.bus; 1536 sc->ciss_max_logical_bus = max(sc->ciss_max_logical_bus, bus) + 1; 1537 } else { 1538 bus = CISS_EXTRA_BUS2(cll->lun[i].physical.extra_address); 1539 sc->ciss_max_physical_bus = max(sc->ciss_max_physical_bus, bus); 1540 } 1541 } 1542 1543 sc->ciss_controllers = 1544 malloc(sc->ciss_max_logical_bus * sizeof (union ciss_device_address), 1545 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1546 1547 if (sc->ciss_controllers == NULL) { 1548 ciss_printf(sc, "Could not allocate memory for controller map\n"); 1549 error = ENOMEM; 1550 goto out; 1551 } 1552 1553 /* setup a map of controller addresses */ 1554 for (i = 0; i < nphys; i++) { 1555 if (cll->lun[i].physical.extra_address == 0) { 1556 sc->ciss_controllers[cll->lun[i].physical.bus] = cll->lun[i]; 1557 } 1558 } 1559 1560 sc->ciss_physical = 1561 malloc(sc->ciss_max_physical_bus * sizeof(struct ciss_pdrive *), 1562 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1563 if (sc->ciss_physical == NULL) { 1564 ciss_printf(sc, "Could not allocate memory for physical device map\n"); 1565 error = ENOMEM; 1566 goto out; 1567 } 1568 1569 for (i = 0; i < sc->ciss_max_physical_bus; i++) { 1570 sc->ciss_physical[i] = 1571 malloc(sizeof(struct ciss_pdrive) * CISS_MAX_PHYSTGT, 1572 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1573 if (sc->ciss_physical[i] == NULL) { 1574 ciss_printf(sc, "Could not allocate memory for target map\n"); 1575 error = ENOMEM; 1576 goto out; 1577 } 1578 } 1579 1580 ciss_filter_physical(sc, cll); 1581 1582 out: 1583 if (cll != NULL) 1584 free(cll, CISS_MALLOC_CLASS); 1585 1586 return(error); 1587 } 1588 1589 static int 1590 ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll) 1591 { 1592 u_int32_t ea; 1593 int i, nphys; 1594 int bus, target; 1595 1596 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1597 for (i = 0; i < nphys; i++) { 1598 if (cll->lun[i].physical.extra_address == 0) 1599 continue; 1600 1601 /* 1602 * Filter out devices that we don't want. Level 3 LUNs could 1603 * probably be supported, but the docs don't give enough of a 1604 * hint to know how. 1605 * 1606 * The mode field of the physical address is likely set to have 1607 * hard disks masked out. Honor it unless the user has overridden 1608 * us with the tunable. We also munge the inquiry data for these 1609 * disks so that they only show up as passthrough devices. Keeping 1610 * them visible in this fashion is useful for doing things like 1611 * flashing firmware. 1612 */ 1613 ea = cll->lun[i].physical.extra_address; 1614 if ((CISS_EXTRA_BUS3(ea) != 0) || (CISS_EXTRA_TARGET3(ea) != 0) || 1615 (CISS_EXTRA_MODE2(ea) == 0x3)) 1616 continue; 1617 if ((ciss_expose_hidden_physical == 0) && 1618 (cll->lun[i].physical.mode == CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL)) 1619 continue; 1620 1621 /* 1622 * Note: CISS firmware numbers physical busses starting at '1', not 1623 * '0'. This numbering is internal to the firmware and is only 1624 * used as a hint here. 1625 */ 1626 bus = CISS_EXTRA_BUS2(ea) - 1; 1627 target = CISS_EXTRA_TARGET2(ea); 1628 sc->ciss_physical[bus][target].cp_address = cll->lun[i]; 1629 sc->ciss_physical[bus][target].cp_online = 1; 1630 } 1631 1632 return (0); 1633 } 1634 1635 static int 1636 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1637 { 1638 struct ciss_request *cr; 1639 struct ciss_command *cc; 1640 struct scsi_inquiry *inq; 1641 int error; 1642 int command_status; 1643 1644 cr = NULL; 1645 1646 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry)); 1647 1648 if ((error = ciss_get_request(sc, &cr)) != 0) 1649 goto out; 1650 1651 cc = cr->cr_cc; 1652 cr->cr_data = &ld->cl_geometry; 1653 cr->cr_length = sizeof(ld->cl_geometry); 1654 cr->cr_flags = CISS_REQ_DATAIN; 1655 1656 cc->header.address = ld->cl_address; 1657 cc->cdb.cdb_length = 6; 1658 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1659 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1660 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1661 cc->cdb.timeout = 30; 1662 1663 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]); 1664 inq->opcode = INQUIRY; 1665 inq->byte2 = SI_EVPD; 1666 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY; 1667 scsi_ulto2b(sizeof(ld->cl_geometry), inq->length); 1668 1669 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1670 ciss_printf(sc, "error getting geometry (%d)\n", error); 1671 goto out; 1672 } 1673 1674 ciss_report_request(cr, &command_status, NULL); 1675 switch(command_status) { 1676 case CISS_CMD_STATUS_SUCCESS: 1677 case CISS_CMD_STATUS_DATA_UNDERRUN: 1678 break; 1679 case CISS_CMD_STATUS_DATA_OVERRUN: 1680 ciss_printf(sc, "WARNING: Data overrun\n"); 1681 break; 1682 default: 1683 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n", 1684 ciss_name_command_status(command_status)); 1685 break; 1686 } 1687 1688 out: 1689 if (cr != NULL) 1690 ciss_release_request(cr); 1691 return(error); 1692 } 1693 /************************************************************************ 1694 * Identify a logical drive, initialise state related to it. 1695 */ 1696 static int 1697 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1698 { 1699 struct ciss_request *cr; 1700 struct ciss_command *cc; 1701 struct ciss_bmic_cdb *cbc; 1702 int error, command_status; 1703 1704 debug_called(1); 1705 1706 cr = NULL; 1707 1708 /* 1709 * Build a BMIC request to fetch the drive ID. 1710 */ 1711 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE, 1712 (void **)&ld->cl_ldrive, 1713 sizeof(*ld->cl_ldrive))) != 0) 1714 goto out; 1715 cc = cr->cr_cc; 1716 cc->header.address = *ld->cl_controller; /* target controller */ 1717 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1718 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1719 1720 /* 1721 * Submit the request and wait for it to complete. 1722 */ 1723 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1724 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error); 1725 goto out; 1726 } 1727 1728 /* 1729 * Check response. 1730 */ 1731 ciss_report_request(cr, &command_status, NULL); 1732 switch(command_status) { 1733 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1734 break; 1735 case CISS_CMD_STATUS_DATA_UNDERRUN: 1736 case CISS_CMD_STATUS_DATA_OVERRUN: 1737 ciss_printf(sc, "data over/underrun reading logical drive ID\n"); 1738 default: 1739 ciss_printf(sc, "error reading logical drive ID (%s)\n", 1740 ciss_name_command_status(command_status)); 1741 error = EIO; 1742 goto out; 1743 } 1744 ciss_release_request(cr); 1745 cr = NULL; 1746 1747 /* 1748 * Build a CISS BMIC command to get the logical drive status. 1749 */ 1750 if ((error = ciss_get_ldrive_status(sc, ld)) != 0) 1751 goto out; 1752 1753 /* 1754 * Get the logical drive geometry. 1755 */ 1756 if ((error = ciss_inquiry_logical(sc, ld)) != 0) 1757 goto out; 1758 1759 /* 1760 * Print the drive's basic characteristics. 1761 */ 1762 if (bootverbose) { 1763 ciss_printf(sc, "logical drive (b%dt%d): %s, %dMB ", 1764 CISS_LUN_TO_BUS(ld->cl_address.logical.lun), 1765 CISS_LUN_TO_TARGET(ld->cl_address.logical.lun), 1766 ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance), 1767 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) * 1768 ld->cl_ldrive->block_size)); 1769 1770 ciss_print_ldrive(sc, ld); 1771 } 1772 out: 1773 if (error != 0) { 1774 /* make the drive not-exist */ 1775 ld->cl_status = CISS_LD_NONEXISTENT; 1776 if (ld->cl_ldrive != NULL) { 1777 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 1778 ld->cl_ldrive = NULL; 1779 } 1780 if (ld->cl_lstatus != NULL) { 1781 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 1782 ld->cl_lstatus = NULL; 1783 } 1784 } 1785 if (cr != NULL) 1786 ciss_release_request(cr); 1787 1788 return(error); 1789 } 1790 1791 /************************************************************************ 1792 * Get status for a logical drive. 1793 * 1794 * XXX should we also do this in response to Test Unit Ready? 1795 */ 1796 static int 1797 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld) 1798 { 1799 struct ciss_request *cr; 1800 struct ciss_command *cc; 1801 struct ciss_bmic_cdb *cbc; 1802 int error, command_status; 1803 1804 /* 1805 * Build a CISS BMIC command to get the logical drive status. 1806 */ 1807 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS, 1808 (void **)&ld->cl_lstatus, 1809 sizeof(*ld->cl_lstatus))) != 0) 1810 goto out; 1811 cc = cr->cr_cc; 1812 cc->header.address = *ld->cl_controller; /* target controller */ 1813 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1814 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1815 1816 /* 1817 * Submit the request and wait for it to complete. 1818 */ 1819 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1820 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1821 goto out; 1822 } 1823 1824 /* 1825 * Check response. 1826 */ 1827 ciss_report_request(cr, &command_status, NULL); 1828 switch(command_status) { 1829 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1830 break; 1831 case CISS_CMD_STATUS_DATA_UNDERRUN: 1832 case CISS_CMD_STATUS_DATA_OVERRUN: 1833 ciss_printf(sc, "data over/underrun reading logical drive status\n"); 1834 default: 1835 ciss_printf(sc, "error reading logical drive status (%s)\n", 1836 ciss_name_command_status(command_status)); 1837 error = EIO; 1838 goto out; 1839 } 1840 1841 /* 1842 * Set the drive's summary status based on the returned status. 1843 * 1844 * XXX testing shows that a failed JBOD drive comes back at next 1845 * boot in "queued for expansion" mode. WTF? 1846 */ 1847 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status); 1848 1849 out: 1850 if (cr != NULL) 1851 ciss_release_request(cr); 1852 return(error); 1853 } 1854 1855 /************************************************************************ 1856 * Notify the adapter of a config update. 1857 */ 1858 static int 1859 ciss_update_config(struct ciss_softc *sc) 1860 { 1861 int i; 1862 1863 debug_called(1); 1864 1865 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE); 1866 for (i = 0; i < 1000; i++) { 1867 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) & 1868 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) { 1869 return(0); 1870 } 1871 DELAY(1000); 1872 } 1873 return(1); 1874 } 1875 1876 /************************************************************************ 1877 * Accept new media into a logical drive. 1878 * 1879 * XXX The drive has previously been offline; it would be good if we 1880 * could make sure it's not open right now. 1881 */ 1882 static int 1883 ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld) 1884 { 1885 struct ciss_request *cr; 1886 struct ciss_command *cc; 1887 struct ciss_bmic_cdb *cbc; 1888 int command_status; 1889 int error = 0, ldrive; 1890 1891 ldrive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1892 1893 debug(0, "bringing logical drive %d back online", ldrive); 1894 1895 /* 1896 * Build a CISS BMIC command to bring the drive back online. 1897 */ 1898 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA, 1899 NULL, 0)) != 0) 1900 goto out; 1901 cc = cr->cr_cc; 1902 cc->header.address = *ld->cl_controller; /* target controller */ 1903 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1904 cbc->log_drive = ldrive; 1905 1906 /* 1907 * Submit the request and wait for it to complete. 1908 */ 1909 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1910 ciss_printf(sc, "error sending BMIC ACCEPT MEDIA command (%d)\n", error); 1911 goto out; 1912 } 1913 1914 /* 1915 * Check response. 1916 */ 1917 ciss_report_request(cr, &command_status, NULL); 1918 switch(command_status) { 1919 case CISS_CMD_STATUS_SUCCESS: /* all OK */ 1920 /* we should get a logical drive status changed event here */ 1921 break; 1922 default: 1923 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n", 1924 ciss_name_command_status(command_status)); 1925 break; 1926 } 1927 1928 out: 1929 if (cr != NULL) 1930 ciss_release_request(cr); 1931 return(error); 1932 } 1933 1934 /************************************************************************ 1935 * Release adapter resources. 1936 */ 1937 static void 1938 ciss_free(struct ciss_softc *sc) 1939 { 1940 struct ciss_request *cr; 1941 int i, j; 1942 1943 debug_called(1); 1944 1945 /* we're going away */ 1946 sc->ciss_flags |= CISS_FLAG_ABORTING; 1947 1948 /* terminate the periodic heartbeat routine */ 1949 callout_stop(&sc->ciss_periodic); 1950 1951 /* cancel the Event Notify chain */ 1952 ciss_notify_abort(sc); 1953 1954 ciss_kill_notify_thread(sc); 1955 1956 /* disconnect from CAM */ 1957 if (sc->ciss_cam_sim) { 1958 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1959 if (sc->ciss_cam_sim[i]) { 1960 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1961 cam_sim_free(sc->ciss_cam_sim[i], 0); 1962 } 1963 } 1964 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 1965 CISS_PHYSICAL_BASE; i++) { 1966 if (sc->ciss_cam_sim[i]) { 1967 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1968 cam_sim_free(sc->ciss_cam_sim[i], 0); 1969 } 1970 } 1971 free(sc->ciss_cam_sim, CISS_MALLOC_CLASS); 1972 } 1973 if (sc->ciss_cam_devq) 1974 cam_simq_free(sc->ciss_cam_devq); 1975 1976 /* remove the control device */ 1977 mtx_unlock(&sc->ciss_mtx); 1978 if (sc->ciss_dev_t != NULL) 1979 destroy_dev(sc->ciss_dev_t); 1980 1981 /* Final cleanup of the callout. */ 1982 callout_drain(&sc->ciss_periodic); 1983 mtx_destroy(&sc->ciss_mtx); 1984 1985 /* free the controller data */ 1986 if (sc->ciss_id != NULL) 1987 free(sc->ciss_id, CISS_MALLOC_CLASS); 1988 1989 /* release I/O resources */ 1990 if (sc->ciss_regs_resource != NULL) 1991 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1992 sc->ciss_regs_rid, sc->ciss_regs_resource); 1993 if (sc->ciss_cfg_resource != NULL) 1994 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 1995 sc->ciss_cfg_rid, sc->ciss_cfg_resource); 1996 if (sc->ciss_intr != NULL) 1997 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr); 1998 if (sc->ciss_irq_resource != NULL) 1999 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ, 2000 sc->ciss_irq_rid[0], sc->ciss_irq_resource); 2001 if (sc->ciss_msi) 2002 pci_release_msi(sc->ciss_dev); 2003 2004 while ((cr = ciss_dequeue_free(sc)) != NULL) 2005 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap); 2006 if (sc->ciss_buffer_dmat) 2007 bus_dma_tag_destroy(sc->ciss_buffer_dmat); 2008 2009 /* destroy command memory and DMA tag */ 2010 if (sc->ciss_command != NULL) { 2011 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map); 2012 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map); 2013 } 2014 if (sc->ciss_command_dmat) 2015 bus_dma_tag_destroy(sc->ciss_command_dmat); 2016 2017 if (sc->ciss_reply) { 2018 bus_dmamap_unload(sc->ciss_reply_dmat, sc->ciss_reply_map); 2019 bus_dmamem_free(sc->ciss_reply_dmat, sc->ciss_reply, sc->ciss_reply_map); 2020 } 2021 if (sc->ciss_reply_dmat) 2022 bus_dma_tag_destroy(sc->ciss_reply_dmat); 2023 2024 /* destroy DMA tags */ 2025 if (sc->ciss_parent_dmat) 2026 bus_dma_tag_destroy(sc->ciss_parent_dmat); 2027 if (sc->ciss_logical) { 2028 for (i = 0; i <= sc->ciss_max_logical_bus; i++) { 2029 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) { 2030 if (sc->ciss_logical[i][j].cl_ldrive) 2031 free(sc->ciss_logical[i][j].cl_ldrive, CISS_MALLOC_CLASS); 2032 if (sc->ciss_logical[i][j].cl_lstatus) 2033 free(sc->ciss_logical[i][j].cl_lstatus, CISS_MALLOC_CLASS); 2034 } 2035 free(sc->ciss_logical[i], CISS_MALLOC_CLASS); 2036 } 2037 free(sc->ciss_logical, CISS_MALLOC_CLASS); 2038 } 2039 2040 if (sc->ciss_physical) { 2041 for (i = 0; i < sc->ciss_max_physical_bus; i++) 2042 free(sc->ciss_physical[i], CISS_MALLOC_CLASS); 2043 free(sc->ciss_physical, CISS_MALLOC_CLASS); 2044 } 2045 2046 if (sc->ciss_controllers) 2047 free(sc->ciss_controllers, CISS_MALLOC_CLASS); 2048 2049 } 2050 2051 /************************************************************************ 2052 * Give a command to the adapter. 2053 * 2054 * Note that this uses the simple transport layer directly. If we 2055 * want to add support for other layers, we'll need a switch of some 2056 * sort. 2057 * 2058 * Note that the simple transport layer has no way of refusing a 2059 * command; we only have as many request structures as the adapter 2060 * supports commands, so we don't have to check (this presumes that 2061 * the adapter can handle commands as fast as we throw them at it). 2062 */ 2063 static int 2064 ciss_start(struct ciss_request *cr) 2065 { 2066 struct ciss_command *cc; /* XXX debugging only */ 2067 int error; 2068 2069 cc = cr->cr_cc; 2070 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag); 2071 2072 /* 2073 * Map the request's data. 2074 */ 2075 if ((error = ciss_map_request(cr))) 2076 return(error); 2077 2078 #if 0 2079 ciss_print_request(cr); 2080 #endif 2081 2082 return(0); 2083 } 2084 2085 /************************************************************************ 2086 * Fetch completed request(s) from the adapter, queue them for 2087 * completion handling. 2088 * 2089 * Note that this uses the simple transport layer directly. If we 2090 * want to add support for other layers, we'll need a switch of some 2091 * sort. 2092 * 2093 * Note that the simple transport mechanism does not require any 2094 * reentrancy protection; the OPQ read is atomic. If there is a 2095 * chance of a race with something else that might move the request 2096 * off the busy list, then we will have to lock against that 2097 * (eg. timeouts, etc.) 2098 */ 2099 static void 2100 ciss_done(struct ciss_softc *sc, cr_qhead_t *qh) 2101 { 2102 struct ciss_request *cr; 2103 struct ciss_command *cc; 2104 u_int32_t tag, index; 2105 2106 debug_called(3); 2107 2108 /* 2109 * Loop quickly taking requests from the adapter and moving them 2110 * to the completed queue. 2111 */ 2112 for (;;) { 2113 2114 tag = CISS_TL_SIMPLE_FETCH_CMD(sc); 2115 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY) 2116 break; 2117 index = tag >> 2; 2118 debug(2, "completed command %d%s", index, 2119 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2120 if (index >= sc->ciss_max_requests) { 2121 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2122 continue; 2123 } 2124 cr = &(sc->ciss_request[index]); 2125 cc = cr->cr_cc; 2126 cc->header.host_tag = tag; /* not updated by adapter */ 2127 ciss_enqueue_complete(cr, qh); 2128 } 2129 2130 } 2131 2132 static void 2133 ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh) 2134 { 2135 struct ciss_request *cr; 2136 struct ciss_command *cc; 2137 u_int32_t tag, index; 2138 2139 debug_called(3); 2140 2141 /* 2142 * Loop quickly taking requests from the adapter and moving them 2143 * to the completed queue. 2144 */ 2145 for (;;) { 2146 tag = sc->ciss_reply[sc->ciss_rqidx]; 2147 if ((tag & CISS_CYCLE_MASK) != sc->ciss_cycle) 2148 break; 2149 index = tag >> 2; 2150 debug(2, "completed command %d%s\n", index, 2151 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2152 if (index < sc->ciss_max_requests) { 2153 cr = &(sc->ciss_request[index]); 2154 cc = cr->cr_cc; 2155 cc->header.host_tag = tag; /* not updated by adapter */ 2156 ciss_enqueue_complete(cr, qh); 2157 } else { 2158 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2159 } 2160 if (++sc->ciss_rqidx == sc->ciss_max_requests) { 2161 sc->ciss_rqidx = 0; 2162 sc->ciss_cycle ^= 1; 2163 } 2164 } 2165 2166 } 2167 2168 /************************************************************************ 2169 * Take an interrupt from the adapter. 2170 */ 2171 static void 2172 ciss_intr(void *arg) 2173 { 2174 cr_qhead_t qh; 2175 struct ciss_softc *sc = (struct ciss_softc *)arg; 2176 2177 /* 2178 * The only interrupt we recognise indicates that there are 2179 * entries in the outbound post queue. 2180 */ 2181 STAILQ_INIT(&qh); 2182 ciss_done(sc, &qh); 2183 mtx_lock(&sc->ciss_mtx); 2184 ciss_complete(sc, &qh); 2185 mtx_unlock(&sc->ciss_mtx); 2186 } 2187 2188 static void 2189 ciss_perf_intr(void *arg) 2190 { 2191 struct ciss_softc *sc = (struct ciss_softc *)arg; 2192 2193 /* Clear the interrupt and flush the bridges. Docs say that the flush 2194 * needs to be done twice, which doesn't seem right. 2195 */ 2196 CISS_TL_PERF_CLEAR_INT(sc); 2197 CISS_TL_PERF_FLUSH_INT(sc); 2198 2199 ciss_perf_msi_intr(sc); 2200 } 2201 2202 static void 2203 ciss_perf_msi_intr(void *arg) 2204 { 2205 cr_qhead_t qh; 2206 struct ciss_softc *sc = (struct ciss_softc *)arg; 2207 2208 STAILQ_INIT(&qh); 2209 ciss_perf_done(sc, &qh); 2210 mtx_lock(&sc->ciss_mtx); 2211 ciss_complete(sc, &qh); 2212 mtx_unlock(&sc->ciss_mtx); 2213 } 2214 2215 2216 /************************************************************************ 2217 * Process completed requests. 2218 * 2219 * Requests can be completed in three fashions: 2220 * 2221 * - by invoking a callback function (cr_complete is non-null) 2222 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set) 2223 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context 2224 */ 2225 static void 2226 ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh) 2227 { 2228 struct ciss_request *cr; 2229 2230 debug_called(2); 2231 2232 /* 2233 * Loop taking requests off the completed queue and performing 2234 * completion processing on them. 2235 */ 2236 for (;;) { 2237 if ((cr = ciss_dequeue_complete(sc, qh)) == NULL) 2238 break; 2239 ciss_unmap_request(cr); 2240 2241 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 2242 ciss_printf(sc, "WARNING: completing non-busy request\n"); 2243 cr->cr_flags &= ~CISS_REQ_BUSY; 2244 2245 /* 2246 * If the request has a callback, invoke it. 2247 */ 2248 if (cr->cr_complete != NULL) { 2249 cr->cr_complete(cr); 2250 continue; 2251 } 2252 2253 /* 2254 * If someone is sleeping on this request, wake them up. 2255 */ 2256 if (cr->cr_flags & CISS_REQ_SLEEP) { 2257 cr->cr_flags &= ~CISS_REQ_SLEEP; 2258 wakeup(cr); 2259 continue; 2260 } 2261 2262 /* 2263 * If someone is polling this request for completion, signal. 2264 */ 2265 if (cr->cr_flags & CISS_REQ_POLL) { 2266 cr->cr_flags &= ~CISS_REQ_POLL; 2267 continue; 2268 } 2269 2270 /* 2271 * Give up and throw the request back on the free queue. This 2272 * should never happen; resources will probably be lost. 2273 */ 2274 ciss_printf(sc, "WARNING: completed command with no submitter\n"); 2275 ciss_enqueue_free(cr); 2276 } 2277 } 2278 2279 /************************************************************************ 2280 * Report on the completion status of a request, and pass back SCSI 2281 * and command status values. 2282 */ 2283 static int 2284 _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func) 2285 { 2286 struct ciss_command *cc; 2287 struct ciss_error_info *ce; 2288 2289 debug_called(2); 2290 2291 cc = cr->cr_cc; 2292 ce = (struct ciss_error_info *)&(cc->sg[0]); 2293 2294 /* 2295 * We don't consider data under/overrun an error for the Report 2296 * Logical/Physical LUNs commands. 2297 */ 2298 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) && 2299 ((ce->command_status == CISS_CMD_STATUS_DATA_OVERRUN) || 2300 (ce->command_status == CISS_CMD_STATUS_DATA_UNDERRUN)) && 2301 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) || 2302 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS) || 2303 (cc->cdb.cdb[0] == INQUIRY))) { 2304 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR; 2305 debug(2, "ignoring irrelevant under/overrun error"); 2306 } 2307 2308 /* 2309 * Check the command's error bit, if clear, there's no status and 2310 * everything is OK. 2311 */ 2312 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) { 2313 if (scsi_status != NULL) 2314 *scsi_status = SCSI_STATUS_OK; 2315 if (command_status != NULL) 2316 *command_status = CISS_CMD_STATUS_SUCCESS; 2317 return(0); 2318 } else { 2319 if (command_status != NULL) 2320 *command_status = ce->command_status; 2321 if (scsi_status != NULL) { 2322 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) { 2323 *scsi_status = ce->scsi_status; 2324 } else { 2325 *scsi_status = -1; 2326 } 2327 } 2328 if (bootverbose) 2329 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n", 2330 ce->command_status, ciss_name_command_status(ce->command_status), 2331 ce->scsi_status); 2332 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) { 2333 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x, function %s\n", 2334 ce->additional_error_info.invalid_command.offense_size, 2335 ce->additional_error_info.invalid_command.offense_offset, 2336 ce->additional_error_info.invalid_command.offense_value, 2337 func); 2338 } 2339 } 2340 #if 0 2341 ciss_print_request(cr); 2342 #endif 2343 return(1); 2344 } 2345 2346 /************************************************************************ 2347 * Issue a request and don't return until it's completed. 2348 * 2349 * Depending on adapter status, we may poll or sleep waiting for 2350 * completion. 2351 */ 2352 static int 2353 ciss_synch_request(struct ciss_request *cr, int timeout) 2354 { 2355 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) { 2356 return(ciss_wait_request(cr, timeout)); 2357 } else { 2358 return(ciss_poll_request(cr, timeout)); 2359 } 2360 } 2361 2362 /************************************************************************ 2363 * Issue a request and poll for completion. 2364 * 2365 * Timeout in milliseconds. 2366 */ 2367 static int 2368 ciss_poll_request(struct ciss_request *cr, int timeout) 2369 { 2370 cr_qhead_t qh; 2371 struct ciss_softc *sc; 2372 int error; 2373 2374 debug_called(2); 2375 2376 STAILQ_INIT(&qh); 2377 sc = cr->cr_sc; 2378 cr->cr_flags |= CISS_REQ_POLL; 2379 if ((error = ciss_start(cr)) != 0) 2380 return(error); 2381 2382 do { 2383 if (sc->ciss_perf) 2384 ciss_perf_done(sc, &qh); 2385 else 2386 ciss_done(sc, &qh); 2387 ciss_complete(sc, &qh); 2388 if (!(cr->cr_flags & CISS_REQ_POLL)) 2389 return(0); 2390 DELAY(1000); 2391 } while (timeout-- >= 0); 2392 return(EWOULDBLOCK); 2393 } 2394 2395 /************************************************************************ 2396 * Issue a request and sleep waiting for completion. 2397 * 2398 * Timeout in milliseconds. Note that a spurious wakeup will reset 2399 * the timeout. 2400 */ 2401 static int 2402 ciss_wait_request(struct ciss_request *cr, int timeout) 2403 { 2404 int error; 2405 2406 debug_called(2); 2407 2408 cr->cr_flags |= CISS_REQ_SLEEP; 2409 if ((error = ciss_start(cr)) != 0) 2410 return(error); 2411 2412 while ((cr->cr_flags & CISS_REQ_SLEEP) && (error != EWOULDBLOCK)) { 2413 error = msleep(cr, &cr->cr_sc->ciss_mtx, PRIBIO, "cissREQ", (timeout * hz) / 1000); 2414 } 2415 return(error); 2416 } 2417 2418 #if 0 2419 /************************************************************************ 2420 * Abort a request. Note that a potential exists here to race the 2421 * request being completed; the caller must deal with this. 2422 */ 2423 static int 2424 ciss_abort_request(struct ciss_request *ar) 2425 { 2426 struct ciss_request *cr; 2427 struct ciss_command *cc; 2428 struct ciss_message_cdb *cmc; 2429 int error; 2430 2431 debug_called(1); 2432 2433 /* get a request */ 2434 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0) 2435 return(error); 2436 2437 /* build the abort command */ 2438 cc = cr->cr_cc; 2439 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */ 2440 cc->header.address.physical.target = 0; 2441 cc->header.address.physical.bus = 0; 2442 cc->cdb.cdb_length = sizeof(*cmc); 2443 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 2444 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2445 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2446 cc->cdb.timeout = 30; 2447 2448 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]); 2449 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT; 2450 cmc->type = CISS_MESSAGE_ABORT_TASK; 2451 cmc->abort_tag = ar->cr_tag; /* endianness?? */ 2452 2453 /* 2454 * Send the request and wait for a response. If we believe we 2455 * aborted the request OK, clear the flag that indicates it's 2456 * running. 2457 */ 2458 error = ciss_synch_request(cr, 35 * 1000); 2459 if (!error) 2460 error = ciss_report_request(cr, NULL, NULL); 2461 ciss_release_request(cr); 2462 2463 return(error); 2464 } 2465 #endif 2466 2467 2468 /************************************************************************ 2469 * Fetch and initialise a request 2470 */ 2471 static int 2472 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp) 2473 { 2474 struct ciss_request *cr; 2475 2476 debug_called(2); 2477 2478 /* 2479 * Get a request and clean it up. 2480 */ 2481 if ((cr = ciss_dequeue_free(sc)) == NULL) 2482 return(ENOMEM); 2483 2484 cr->cr_data = NULL; 2485 cr->cr_flags = 0; 2486 cr->cr_complete = NULL; 2487 cr->cr_private = NULL; 2488 cr->cr_sg_tag = CISS_SG_MAX; /* Backstop to prevent accidents */ 2489 2490 ciss_preen_command(cr); 2491 *crp = cr; 2492 return(0); 2493 } 2494 2495 static void 2496 ciss_preen_command(struct ciss_request *cr) 2497 { 2498 struct ciss_command *cc; 2499 u_int32_t cmdphys; 2500 2501 /* 2502 * Clean up the command structure. 2503 * 2504 * Note that we set up the error_info structure here, since the 2505 * length can be overwritten by any command. 2506 */ 2507 cc = cr->cr_cc; 2508 cc->header.sg_in_list = 0; /* kinda inefficient this way */ 2509 cc->header.sg_total = 0; 2510 cc->header.host_tag = cr->cr_tag << 2; 2511 cc->header.host_tag_zeroes = 0; 2512 bzero(&(cc->sg[0]), CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command)); 2513 cmdphys = cr->cr_ccphys; 2514 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command); 2515 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command); 2516 } 2517 2518 /************************************************************************ 2519 * Release a request to the free list. 2520 */ 2521 static void 2522 ciss_release_request(struct ciss_request *cr) 2523 { 2524 struct ciss_softc *sc; 2525 2526 debug_called(2); 2527 2528 sc = cr->cr_sc; 2529 2530 /* release the request to the free queue */ 2531 ciss_requeue_free(cr); 2532 } 2533 2534 /************************************************************************ 2535 * Allocate a request that will be used to send a BMIC command. Do some 2536 * of the common setup here to avoid duplicating it everywhere else. 2537 */ 2538 static int 2539 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 2540 int opcode, void **bufp, size_t bufsize) 2541 { 2542 struct ciss_request *cr; 2543 struct ciss_command *cc; 2544 struct ciss_bmic_cdb *cbc; 2545 void *buf; 2546 int error; 2547 int dataout; 2548 2549 debug_called(2); 2550 2551 cr = NULL; 2552 buf = NULL; 2553 2554 /* 2555 * Get a request. 2556 */ 2557 if ((error = ciss_get_request(sc, &cr)) != 0) 2558 goto out; 2559 2560 /* 2561 * Allocate data storage if requested, determine the data direction. 2562 */ 2563 dataout = 0; 2564 if ((bufsize > 0) && (bufp != NULL)) { 2565 if (*bufp == NULL) { 2566 if ((buf = malloc(bufsize, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 2567 error = ENOMEM; 2568 goto out; 2569 } 2570 } else { 2571 buf = *bufp; 2572 dataout = 1; /* we are given a buffer, so we are writing */ 2573 } 2574 } 2575 2576 /* 2577 * Build a CISS BMIC command to get the logical drive ID. 2578 */ 2579 cr->cr_data = buf; 2580 cr->cr_length = bufsize; 2581 if (!dataout) 2582 cr->cr_flags = CISS_REQ_DATAIN; 2583 2584 cc = cr->cr_cc; 2585 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2586 cc->header.address.physical.bus = 0; 2587 cc->header.address.physical.target = 0; 2588 cc->cdb.cdb_length = sizeof(*cbc); 2589 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2590 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2591 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ; 2592 cc->cdb.timeout = 0; 2593 2594 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 2595 bzero(cbc, sizeof(*cbc)); 2596 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ; 2597 cbc->bmic_opcode = opcode; 2598 cbc->size = htons((u_int16_t)bufsize); 2599 2600 out: 2601 if (error) { 2602 if (cr != NULL) 2603 ciss_release_request(cr); 2604 } else { 2605 *crp = cr; 2606 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 2607 *bufp = buf; 2608 } 2609 return(error); 2610 } 2611 2612 /************************************************************************ 2613 * Handle a command passed in from userspace. 2614 */ 2615 static int 2616 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc) 2617 { 2618 struct ciss_request *cr; 2619 struct ciss_command *cc; 2620 struct ciss_error_info *ce; 2621 int error = 0; 2622 2623 debug_called(1); 2624 2625 cr = NULL; 2626 2627 /* 2628 * Get a request. 2629 */ 2630 while (ciss_get_request(sc, &cr) != 0) 2631 msleep(sc, &sc->ciss_mtx, PPAUSE, "cissREQ", hz); 2632 cc = cr->cr_cc; 2633 2634 /* 2635 * Allocate an in-kernel databuffer if required, copy in user data. 2636 */ 2637 mtx_unlock(&sc->ciss_mtx); 2638 cr->cr_length = ioc->buf_size; 2639 if (ioc->buf_size > 0) { 2640 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 2641 error = ENOMEM; 2642 goto out_unlocked; 2643 } 2644 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) { 2645 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2646 goto out_unlocked; 2647 } 2648 } 2649 2650 /* 2651 * Build the request based on the user command. 2652 */ 2653 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address)); 2654 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb)); 2655 2656 /* XXX anything else to populate here? */ 2657 mtx_lock(&sc->ciss_mtx); 2658 2659 /* 2660 * Run the command. 2661 */ 2662 if ((error = ciss_synch_request(cr, 60 * 1000))) { 2663 debug(0, "request failed - %d", error); 2664 goto out; 2665 } 2666 2667 /* 2668 * Check to see if the command succeeded. 2669 */ 2670 ce = (struct ciss_error_info *)&(cc->sg[0]); 2671 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) == 0) 2672 bzero(ce, sizeof(*ce)); 2673 2674 /* 2675 * Copy the results back to the user. 2676 */ 2677 bcopy(ce, &ioc->error_info, sizeof(*ce)); 2678 mtx_unlock(&sc->ciss_mtx); 2679 if ((ioc->buf_size > 0) && 2680 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) { 2681 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2682 goto out_unlocked; 2683 } 2684 2685 /* done OK */ 2686 error = 0; 2687 2688 out_unlocked: 2689 mtx_lock(&sc->ciss_mtx); 2690 2691 out: 2692 if ((cr != NULL) && (cr->cr_data != NULL)) 2693 free(cr->cr_data, CISS_MALLOC_CLASS); 2694 if (cr != NULL) 2695 ciss_release_request(cr); 2696 return(error); 2697 } 2698 2699 /************************************************************************ 2700 * Map a request into bus-visible space, initialise the scatter/gather 2701 * list. 2702 */ 2703 static int 2704 ciss_map_request(struct ciss_request *cr) 2705 { 2706 struct ciss_softc *sc; 2707 int error = 0; 2708 2709 debug_called(2); 2710 2711 sc = cr->cr_sc; 2712 2713 /* check that mapping is necessary */ 2714 if (cr->cr_flags & CISS_REQ_MAPPED) 2715 return(0); 2716 2717 cr->cr_flags |= CISS_REQ_MAPPED; 2718 2719 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2720 BUS_DMASYNC_PREWRITE); 2721 2722 if (cr->cr_data != NULL) { 2723 if (cr->cr_flags & CISS_REQ_CCB) 2724 error = bus_dmamap_load_ccb(sc->ciss_buffer_dmat, 2725 cr->cr_datamap, cr->cr_data, 2726 ciss_request_map_helper, cr, 0); 2727 else 2728 error = bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, 2729 cr->cr_data, cr->cr_length, 2730 ciss_request_map_helper, cr, 0); 2731 if (error != 0) 2732 return (error); 2733 } else { 2734 /* 2735 * Post the command to the adapter. 2736 */ 2737 cr->cr_sg_tag = CISS_SG_NONE; 2738 cr->cr_flags |= CISS_REQ_BUSY; 2739 if (sc->ciss_perf) 2740 CISS_TL_PERF_POST_CMD(sc, cr); 2741 else 2742 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys); 2743 } 2744 2745 return(0); 2746 } 2747 2748 static void 2749 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2750 { 2751 struct ciss_command *cc; 2752 struct ciss_request *cr; 2753 struct ciss_softc *sc; 2754 int i; 2755 2756 debug_called(2); 2757 2758 cr = (struct ciss_request *)arg; 2759 sc = cr->cr_sc; 2760 cc = cr->cr_cc; 2761 2762 for (i = 0; i < nseg; i++) { 2763 cc->sg[i].address = segs[i].ds_addr; 2764 cc->sg[i].length = segs[i].ds_len; 2765 cc->sg[i].extension = 0; 2766 } 2767 /* we leave the s/g table entirely within the command */ 2768 cc->header.sg_in_list = nseg; 2769 cc->header.sg_total = nseg; 2770 2771 if (cr->cr_flags & CISS_REQ_DATAIN) 2772 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD); 2773 if (cr->cr_flags & CISS_REQ_DATAOUT) 2774 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE); 2775 2776 if (nseg == 0) 2777 cr->cr_sg_tag = CISS_SG_NONE; 2778 else if (nseg == 1) 2779 cr->cr_sg_tag = CISS_SG_1; 2780 else if (nseg == 2) 2781 cr->cr_sg_tag = CISS_SG_2; 2782 else if (nseg <= 4) 2783 cr->cr_sg_tag = CISS_SG_4; 2784 else if (nseg <= 8) 2785 cr->cr_sg_tag = CISS_SG_8; 2786 else if (nseg <= 16) 2787 cr->cr_sg_tag = CISS_SG_16; 2788 else if (nseg <= 32) 2789 cr->cr_sg_tag = CISS_SG_32; 2790 else 2791 cr->cr_sg_tag = CISS_SG_MAX; 2792 2793 /* 2794 * Post the command to the adapter. 2795 */ 2796 cr->cr_flags |= CISS_REQ_BUSY; 2797 if (sc->ciss_perf) 2798 CISS_TL_PERF_POST_CMD(sc, cr); 2799 else 2800 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys); 2801 } 2802 2803 /************************************************************************ 2804 * Unmap a request from bus-visible space. 2805 */ 2806 static void 2807 ciss_unmap_request(struct ciss_request *cr) 2808 { 2809 struct ciss_softc *sc; 2810 2811 debug_called(2); 2812 2813 sc = cr->cr_sc; 2814 2815 /* check that unmapping is necessary */ 2816 if ((cr->cr_flags & CISS_REQ_MAPPED) == 0) 2817 return; 2818 2819 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2820 BUS_DMASYNC_POSTWRITE); 2821 2822 if (cr->cr_data == NULL) 2823 goto out; 2824 2825 if (cr->cr_flags & CISS_REQ_DATAIN) 2826 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD); 2827 if (cr->cr_flags & CISS_REQ_DATAOUT) 2828 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE); 2829 2830 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap); 2831 out: 2832 cr->cr_flags &= ~CISS_REQ_MAPPED; 2833 } 2834 2835 /************************************************************************ 2836 * Attach the driver to CAM. 2837 * 2838 * We put all the logical drives on a single SCSI bus. 2839 */ 2840 static int 2841 ciss_cam_init(struct ciss_softc *sc) 2842 { 2843 int i, maxbus; 2844 2845 debug_called(1); 2846 2847 /* 2848 * Allocate a devq. We can reuse this for the masked physical 2849 * devices if we decide to export these as well. 2850 */ 2851 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests - 2)) == NULL) { 2852 ciss_printf(sc, "can't allocate CAM SIM queue\n"); 2853 return(ENOMEM); 2854 } 2855 2856 /* 2857 * Create a SIM. 2858 * 2859 * This naturally wastes a bit of memory. The alternative is to allocate 2860 * and register each bus as it is found, and then track them on a linked 2861 * list. Unfortunately, the driver has a few places where it needs to 2862 * look up the SIM based solely on bus number, and it's unclear whether 2863 * a list traversal would work for these situations. 2864 */ 2865 maxbus = max(sc->ciss_max_logical_bus, sc->ciss_max_physical_bus + 2866 CISS_PHYSICAL_BASE); 2867 sc->ciss_cam_sim = malloc(maxbus * sizeof(struct cam_sim*), 2868 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 2869 if (sc->ciss_cam_sim == NULL) { 2870 ciss_printf(sc, "can't allocate memory for controller SIM\n"); 2871 return(ENOMEM); 2872 } 2873 2874 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 2875 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2876 "ciss", sc, 2877 device_get_unit(sc->ciss_dev), 2878 &sc->ciss_mtx, 2879 2, 2880 sc->ciss_max_requests - 2, 2881 sc->ciss_cam_devq)) == NULL) { 2882 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2883 return(ENOMEM); 2884 } 2885 2886 /* 2887 * Register bus with this SIM. 2888 */ 2889 mtx_lock(&sc->ciss_mtx); 2890 if (i == 0 || sc->ciss_controllers[i].physical.bus != 0) { 2891 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) { 2892 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2893 mtx_unlock(&sc->ciss_mtx); 2894 return (ENXIO); 2895 } 2896 } 2897 mtx_unlock(&sc->ciss_mtx); 2898 } 2899 2900 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2901 CISS_PHYSICAL_BASE; i++) { 2902 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2903 "ciss", sc, 2904 device_get_unit(sc->ciss_dev), 2905 &sc->ciss_mtx, 1, 2906 sc->ciss_max_requests - 2, 2907 sc->ciss_cam_devq)) == NULL) { 2908 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2909 return (ENOMEM); 2910 } 2911 2912 mtx_lock(&sc->ciss_mtx); 2913 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) { 2914 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2915 mtx_unlock(&sc->ciss_mtx); 2916 return (ENXIO); 2917 } 2918 mtx_unlock(&sc->ciss_mtx); 2919 } 2920 2921 return(0); 2922 } 2923 2924 /************************************************************************ 2925 * Initiate a rescan of the 'logical devices' SIM 2926 */ 2927 static void 2928 ciss_cam_rescan_target(struct ciss_softc *sc, int bus, int target) 2929 { 2930 union ccb *ccb; 2931 2932 debug_called(1); 2933 2934 if ((ccb = xpt_alloc_ccb_nowait()) == NULL) { 2935 ciss_printf(sc, "rescan failed (can't allocate CCB)\n"); 2936 return; 2937 } 2938 2939 if (xpt_create_path(&ccb->ccb_h.path, NULL, 2940 cam_sim_path(sc->ciss_cam_sim[bus]), 2941 target, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 2942 ciss_printf(sc, "rescan failed (can't create path)\n"); 2943 xpt_free_ccb(ccb); 2944 return; 2945 } 2946 xpt_rescan(ccb); 2947 /* scan is now in progress */ 2948 } 2949 2950 /************************************************************************ 2951 * Handle requests coming from CAM 2952 */ 2953 static void 2954 ciss_cam_action(struct cam_sim *sim, union ccb *ccb) 2955 { 2956 struct ciss_softc *sc; 2957 struct ccb_scsiio *csio; 2958 int bus, target; 2959 int physical; 2960 2961 sc = cam_sim_softc(sim); 2962 bus = cam_sim_bus(sim); 2963 csio = (struct ccb_scsiio *)&ccb->csio; 2964 target = csio->ccb_h.target_id; 2965 physical = CISS_IS_PHYSICAL(bus); 2966 2967 switch (ccb->ccb_h.func_code) { 2968 2969 /* perform SCSI I/O */ 2970 case XPT_SCSI_IO: 2971 if (!ciss_cam_action_io(sim, csio)) 2972 return; 2973 break; 2974 2975 /* perform geometry calculations */ 2976 case XPT_CALC_GEOMETRY: 2977 { 2978 struct ccb_calc_geometry *ccg = &ccb->ccg; 2979 struct ciss_ldrive *ld; 2980 2981 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2982 2983 ld = NULL; 2984 if (!physical) 2985 ld = &sc->ciss_logical[bus][target]; 2986 2987 /* 2988 * Use the cached geometry settings unless the fault tolerance 2989 * is invalid. 2990 */ 2991 if (physical || ld->cl_geometry.fault_tolerance == 0xFF) { 2992 u_int32_t secs_per_cylinder; 2993 2994 ccg->heads = 255; 2995 ccg->secs_per_track = 32; 2996 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 2997 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 2998 } else { 2999 ccg->heads = ld->cl_geometry.heads; 3000 ccg->secs_per_track = ld->cl_geometry.sectors; 3001 ccg->cylinders = ntohs(ld->cl_geometry.cylinders); 3002 } 3003 ccb->ccb_h.status = CAM_REQ_CMP; 3004 break; 3005 } 3006 3007 /* handle path attribute inquiry */ 3008 case XPT_PATH_INQ: 3009 { 3010 struct ccb_pathinq *cpi = &ccb->cpi; 3011 int sg_length; 3012 3013 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 3014 3015 cpi->version_num = 1; 3016 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */ 3017 cpi->target_sprt = 0; 3018 cpi->hba_misc = 0; 3019 cpi->max_target = sc->ciss_cfg->max_logical_supported; 3020 cpi->max_lun = 0; /* 'logical drive' channel only */ 3021 cpi->initiator_id = sc->ciss_cfg->max_logical_supported; 3022 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 3023 strncpy(cpi->hba_vid, "msmith@freebsd.org", HBA_IDLEN); 3024 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 3025 cpi->unit_number = cam_sim_unit(sim); 3026 cpi->bus_id = cam_sim_bus(sim); 3027 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */ 3028 cpi->transport = XPORT_SPI; 3029 cpi->transport_version = 2; 3030 cpi->protocol = PROTO_SCSI; 3031 cpi->protocol_version = SCSI_REV_2; 3032 if (sc->ciss_cfg->max_sg_length == 0) { 3033 sg_length = 17; 3034 } else { 3035 /* XXX Fix for ZMR cards that advertise max_sg_length == 32 3036 * Confusing bit here. max_sg_length is usually a power of 2. We always 3037 * need to subtract 1 to account for partial pages. Then we need to 3038 * align on a valid PAGE_SIZE so we round down to the nearest power of 2. 3039 * Add 1 so we can then subtract it out in the assignment to maxio. 3040 * The reason for all these shenanigans is to create a maxio value that 3041 * creates IO operations to volumes that yield consistent operations 3042 * with good performance. 3043 */ 3044 sg_length = sc->ciss_cfg->max_sg_length - 1; 3045 sg_length = (1 << (fls(sg_length) - 1)) + 1; 3046 } 3047 cpi->maxio = (min(CISS_MAX_SG_ELEMENTS, sg_length) - 1) * PAGE_SIZE; 3048 ccb->ccb_h.status = CAM_REQ_CMP; 3049 break; 3050 } 3051 3052 case XPT_GET_TRAN_SETTINGS: 3053 { 3054 struct ccb_trans_settings *cts = &ccb->cts; 3055 int bus, target; 3056 struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi; 3057 struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi; 3058 3059 bus = cam_sim_bus(sim); 3060 target = cts->ccb_h.target_id; 3061 3062 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target); 3063 /* disconnect always OK */ 3064 cts->protocol = PROTO_SCSI; 3065 cts->protocol_version = SCSI_REV_2; 3066 cts->transport = XPORT_SPI; 3067 cts->transport_version = 2; 3068 3069 spi->valid = CTS_SPI_VALID_DISC; 3070 spi->flags = CTS_SPI_FLAGS_DISC_ENB; 3071 3072 scsi->valid = CTS_SCSI_VALID_TQ; 3073 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB; 3074 3075 cts->ccb_h.status = CAM_REQ_CMP; 3076 break; 3077 } 3078 3079 default: /* we can't do this */ 3080 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code); 3081 ccb->ccb_h.status = CAM_REQ_INVALID; 3082 break; 3083 } 3084 3085 xpt_done(ccb); 3086 } 3087 3088 /************************************************************************ 3089 * Handle a CAM SCSI I/O request. 3090 */ 3091 static int 3092 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio) 3093 { 3094 struct ciss_softc *sc; 3095 int bus, target; 3096 struct ciss_request *cr; 3097 struct ciss_command *cc; 3098 int error; 3099 3100 sc = cam_sim_softc(sim); 3101 bus = cam_sim_bus(sim); 3102 target = csio->ccb_h.target_id; 3103 3104 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun); 3105 3106 /* check that the CDB pointer is not to a physical address */ 3107 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) { 3108 debug(3, " CDB pointer is to physical address"); 3109 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3110 } 3111 3112 /* abandon aborted ccbs or those that have failed validation */ 3113 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 3114 debug(3, "abandoning CCB due to abort/validation failure"); 3115 return(EINVAL); 3116 } 3117 3118 /* handle emulation of some SCSI commands ourself */ 3119 if (ciss_cam_emulate(sc, csio)) 3120 return(0); 3121 3122 /* 3123 * Get a request to manage this command. If we can't, return the 3124 * ccb, freeze the queue and flag so that we unfreeze it when a 3125 * request completes. 3126 */ 3127 if ((error = ciss_get_request(sc, &cr)) != 0) { 3128 xpt_freeze_simq(sim, 1); 3129 sc->ciss_flags |= CISS_FLAG_BUSY; 3130 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3131 return(error); 3132 } 3133 3134 /* 3135 * Build the command. 3136 */ 3137 cc = cr->cr_cc; 3138 cr->cr_data = csio; 3139 cr->cr_length = csio->dxfer_len; 3140 cr->cr_complete = ciss_cam_complete; 3141 cr->cr_private = csio; 3142 3143 /* 3144 * Target the right logical volume. 3145 */ 3146 if (CISS_IS_PHYSICAL(bus)) 3147 cc->header.address = 3148 sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_address; 3149 else 3150 cc->header.address = 3151 sc->ciss_logical[bus][target].cl_address; 3152 cc->cdb.cdb_length = csio->cdb_len; 3153 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3154 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */ 3155 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 3156 cr->cr_flags = CISS_REQ_DATAOUT | CISS_REQ_CCB; 3157 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3158 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 3159 cr->cr_flags = CISS_REQ_DATAIN | CISS_REQ_CCB; 3160 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3161 } else { 3162 cr->cr_data = NULL; 3163 cr->cr_flags = 0; 3164 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 3165 } 3166 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1; 3167 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 3168 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len); 3169 } else { 3170 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len); 3171 } 3172 3173 /* 3174 * Submit the request to the adapter. 3175 * 3176 * Note that this may fail if we're unable to map the request (and 3177 * if we ever learn a transport layer other than simple, may fail 3178 * if the adapter rejects the command). 3179 */ 3180 if ((error = ciss_start(cr)) != 0) { 3181 xpt_freeze_simq(sim, 1); 3182 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3183 if (error == EINPROGRESS) { 3184 error = 0; 3185 } else { 3186 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3187 ciss_release_request(cr); 3188 } 3189 return(error); 3190 } 3191 3192 return(0); 3193 } 3194 3195 /************************************************************************ 3196 * Emulate SCSI commands the adapter doesn't handle as we might like. 3197 */ 3198 static int 3199 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio) 3200 { 3201 int bus, target; 3202 u_int8_t opcode; 3203 3204 target = csio->ccb_h.target_id; 3205 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3206 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 3207 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]; 3208 3209 if (CISS_IS_PHYSICAL(bus)) { 3210 if (sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_online != 1) { 3211 csio->ccb_h.status |= CAM_SEL_TIMEOUT; 3212 xpt_done((union ccb *)csio); 3213 return(1); 3214 } else 3215 return(0); 3216 } 3217 3218 /* 3219 * Handle requests for volumes that don't exist or are not online. 3220 * A selection timeout is slightly better than an illegal request. 3221 * Other errors might be better. 3222 */ 3223 if (sc->ciss_logical[bus][target].cl_status != CISS_LD_ONLINE) { 3224 csio->ccb_h.status |= CAM_SEL_TIMEOUT; 3225 xpt_done((union ccb *)csio); 3226 return(1); 3227 } 3228 3229 /* if we have to fake Synchronise Cache */ 3230 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) { 3231 /* 3232 * If this is a Synchronise Cache command, typically issued when 3233 * a device is closed, flush the adapter and complete now. 3234 */ 3235 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 3236 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) { 3237 ciss_flush_adapter(sc); 3238 csio->ccb_h.status |= CAM_REQ_CMP; 3239 xpt_done((union ccb *)csio); 3240 return(1); 3241 } 3242 } 3243 3244 /* 3245 * A CISS target can only ever have one lun per target. REPORT_LUNS requires 3246 * at least one LUN field to be pre created for us, so snag it and fill in 3247 * the least significant byte indicating 1 LUN here. Emulate the command 3248 * return to shut up warning on console of a CDB error. swb 3249 */ 3250 if (opcode == REPORT_LUNS && csio->dxfer_len > 0) { 3251 csio->data_ptr[3] = 8; 3252 csio->ccb_h.status |= CAM_REQ_CMP; 3253 xpt_done((union ccb *)csio); 3254 return(1); 3255 } 3256 3257 return(0); 3258 } 3259 3260 /************************************************************************ 3261 * Check for possibly-completed commands. 3262 */ 3263 static void 3264 ciss_cam_poll(struct cam_sim *sim) 3265 { 3266 cr_qhead_t qh; 3267 struct ciss_softc *sc = cam_sim_softc(sim); 3268 3269 debug_called(2); 3270 3271 STAILQ_INIT(&qh); 3272 if (sc->ciss_perf) 3273 ciss_perf_done(sc, &qh); 3274 else 3275 ciss_done(sc, &qh); 3276 ciss_complete(sc, &qh); 3277 } 3278 3279 /************************************************************************ 3280 * Handle completion of a command - pass results back through the CCB 3281 */ 3282 static void 3283 ciss_cam_complete(struct ciss_request *cr) 3284 { 3285 struct ciss_softc *sc; 3286 struct ciss_command *cc; 3287 struct ciss_error_info *ce; 3288 struct ccb_scsiio *csio; 3289 int scsi_status; 3290 int command_status; 3291 3292 debug_called(2); 3293 3294 sc = cr->cr_sc; 3295 cc = cr->cr_cc; 3296 ce = (struct ciss_error_info *)&(cc->sg[0]); 3297 csio = (struct ccb_scsiio *)cr->cr_private; 3298 3299 /* 3300 * Extract status values from request. 3301 */ 3302 ciss_report_request(cr, &command_status, &scsi_status); 3303 csio->scsi_status = scsi_status; 3304 3305 /* 3306 * Handle specific SCSI status values. 3307 */ 3308 switch(scsi_status) { 3309 /* no status due to adapter error */ 3310 case -1: 3311 debug(0, "adapter error"); 3312 csio->ccb_h.status |= CAM_REQ_CMP_ERR; 3313 break; 3314 3315 /* no status due to command completed OK */ 3316 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */ 3317 debug(2, "SCSI_STATUS_OK"); 3318 csio->ccb_h.status |= CAM_REQ_CMP; 3319 break; 3320 3321 /* check condition, sense data included */ 3322 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */ 3323 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d\n", 3324 ce->sense_length, ce->residual_count); 3325 bzero(&csio->sense_data, SSD_FULL_SIZE); 3326 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length); 3327 if (csio->sense_len > ce->sense_length) 3328 csio->sense_resid = csio->sense_len - ce->sense_length; 3329 else 3330 csio->sense_resid = 0; 3331 csio->resid = ce->residual_count; 3332 csio->ccb_h.status |= CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 3333 #ifdef CISS_DEBUG 3334 { 3335 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0]; 3336 debug(0, "sense key %x", scsi_get_sense_key(sns, csio->sense_len - 3337 csio->sense_resid, /*show_errors*/ 1)); 3338 } 3339 #endif 3340 break; 3341 3342 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */ 3343 debug(0, "SCSI_STATUS_BUSY"); 3344 csio->ccb_h.status |= CAM_SCSI_BUSY; 3345 break; 3346 3347 default: 3348 debug(0, "unknown status 0x%x", csio->scsi_status); 3349 csio->ccb_h.status |= CAM_REQ_CMP_ERR; 3350 break; 3351 } 3352 3353 /* handle post-command fixup */ 3354 ciss_cam_complete_fixup(sc, csio); 3355 3356 ciss_release_request(cr); 3357 if (sc->ciss_flags & CISS_FLAG_BUSY) { 3358 sc->ciss_flags &= ~CISS_FLAG_BUSY; 3359 if (csio->ccb_h.status & CAM_RELEASE_SIMQ) 3360 xpt_release_simq(xpt_path_sim(csio->ccb_h.path), 0); 3361 else 3362 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3363 } 3364 xpt_done((union ccb *)csio); 3365 } 3366 3367 /******************************************************************************** 3368 * Fix up the result of some commands here. 3369 */ 3370 static void 3371 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio) 3372 { 3373 struct scsi_inquiry_data *inq; 3374 struct ciss_ldrive *cl; 3375 uint8_t *cdb; 3376 int bus, target; 3377 3378 cdb = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 3379 (uint8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes; 3380 if (cdb[0] == INQUIRY && 3381 (cdb[1] & SI_EVPD) == 0 && 3382 (csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN && 3383 csio->dxfer_len >= SHORT_INQUIRY_LENGTH) { 3384 3385 inq = (struct scsi_inquiry_data *)csio->data_ptr; 3386 target = csio->ccb_h.target_id; 3387 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3388 3389 /* 3390 * Don't let hard drives be seen by the DA driver. They will still be 3391 * attached by the PASS driver. 3392 */ 3393 if (CISS_IS_PHYSICAL(bus)) { 3394 if (SID_TYPE(inq) == T_DIRECT) 3395 inq->device = (inq->device & 0xe0) | T_NODEVICE; 3396 return; 3397 } 3398 3399 cl = &sc->ciss_logical[bus][target]; 3400 3401 padstr(inq->vendor, "HP", 3402 SID_VENDOR_SIZE); 3403 padstr(inq->product, 3404 ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 3405 SID_PRODUCT_SIZE); 3406 padstr(inq->revision, 3407 ciss_name_ldrive_status(cl->cl_lstatus->status), 3408 SID_REVISION_SIZE); 3409 } 3410 } 3411 3412 3413 /******************************************************************************** 3414 * Name the device at (target) 3415 * 3416 * XXX is this strictly correct? 3417 */ 3418 static int 3419 ciss_name_device(struct ciss_softc *sc, int bus, int target) 3420 { 3421 struct cam_periph *periph; 3422 struct cam_path *path; 3423 int status; 3424 3425 if (CISS_IS_PHYSICAL(bus)) 3426 return (0); 3427 3428 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim[bus]), 3429 target, 0); 3430 3431 if (status == CAM_REQ_CMP) { 3432 xpt_path_lock(path); 3433 periph = cam_periph_find(path, NULL); 3434 sprintf(sc->ciss_logical[bus][target].cl_name, "%s%d", 3435 periph->periph_name, periph->unit_number); 3436 xpt_path_unlock(path); 3437 xpt_free_path(path); 3438 return(0); 3439 } 3440 sc->ciss_logical[bus][target].cl_name[0] = 0; 3441 return(ENOENT); 3442 } 3443 3444 /************************************************************************ 3445 * Periodic status monitoring. 3446 */ 3447 static void 3448 ciss_periodic(void *arg) 3449 { 3450 struct ciss_softc *sc; 3451 struct ciss_request *cr = NULL; 3452 struct ciss_command *cc = NULL; 3453 int error = 0; 3454 3455 debug_called(1); 3456 3457 sc = (struct ciss_softc *)arg; 3458 3459 /* 3460 * Check the adapter heartbeat. 3461 */ 3462 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) { 3463 sc->ciss_heart_attack++; 3464 debug(0, "adapter heart attack in progress 0x%x/%d", 3465 sc->ciss_heartbeat, sc->ciss_heart_attack); 3466 if (sc->ciss_heart_attack == 3) { 3467 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n"); 3468 ciss_disable_adapter(sc); 3469 return; 3470 } 3471 } else { 3472 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat; 3473 sc->ciss_heart_attack = 0; 3474 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat); 3475 } 3476 3477 /* 3478 * Send the NOP message and wait for a response. 3479 */ 3480 if (ciss_nop_message_heartbeat != 0 && (error = ciss_get_request(sc, &cr)) == 0) { 3481 cc = cr->cr_cc; 3482 cr->cr_complete = ciss_nop_complete; 3483 cc->cdb.cdb_length = 1; 3484 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 3485 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3486 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3487 cc->cdb.timeout = 0; 3488 cc->cdb.cdb[0] = CISS_OPCODE_MESSAGE_NOP; 3489 3490 if ((error = ciss_start(cr)) != 0) { 3491 ciss_printf(sc, "SENDING NOP MESSAGE FAILED\n"); 3492 } 3493 } 3494 3495 /* 3496 * If the notify event request has died for some reason, or has 3497 * not started yet, restart it. 3498 */ 3499 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) { 3500 debug(0, "(re)starting Event Notify chain"); 3501 ciss_notify_event(sc); 3502 } 3503 3504 /* 3505 * Reschedule. 3506 */ 3507 callout_reset(&sc->ciss_periodic, CISS_HEARTBEAT_RATE * hz, ciss_periodic, sc); 3508 } 3509 3510 static void 3511 ciss_nop_complete(struct ciss_request *cr) 3512 { 3513 struct ciss_softc *sc; 3514 static int first_time = 1; 3515 3516 sc = cr->cr_sc; 3517 if (ciss_report_request(cr, NULL, NULL) != 0) { 3518 if (first_time == 1) { 3519 first_time = 0; 3520 ciss_printf(sc, "SENDING NOP MESSAGE FAILED (not logging anymore)\n"); 3521 } 3522 } 3523 3524 ciss_release_request(cr); 3525 } 3526 3527 /************************************************************************ 3528 * Disable the adapter. 3529 * 3530 * The all requests in completed queue is failed with hardware error. 3531 * This will cause failover in a multipath configuration. 3532 */ 3533 static void 3534 ciss_disable_adapter(struct ciss_softc *sc) 3535 { 3536 cr_qhead_t qh; 3537 struct ciss_request *cr; 3538 struct ciss_command *cc; 3539 struct ciss_error_info *ce; 3540 int i; 3541 3542 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 3543 pci_disable_busmaster(sc->ciss_dev); 3544 sc->ciss_flags &= ~CISS_FLAG_RUNNING; 3545 3546 for (i = 1; i < sc->ciss_max_requests; i++) { 3547 cr = &sc->ciss_request[i]; 3548 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 3549 continue; 3550 3551 cc = cr->cr_cc; 3552 ce = (struct ciss_error_info *)&(cc->sg[0]); 3553 ce->command_status = CISS_CMD_STATUS_HARDWARE_ERROR; 3554 ciss_enqueue_complete(cr, &qh); 3555 } 3556 3557 for (;;) { 3558 if ((cr = ciss_dequeue_complete(sc, &qh)) == NULL) 3559 break; 3560 3561 /* 3562 * If the request has a callback, invoke it. 3563 */ 3564 if (cr->cr_complete != NULL) { 3565 cr->cr_complete(cr); 3566 continue; 3567 } 3568 3569 /* 3570 * If someone is sleeping on this request, wake them up. 3571 */ 3572 if (cr->cr_flags & CISS_REQ_SLEEP) { 3573 cr->cr_flags &= ~CISS_REQ_SLEEP; 3574 wakeup(cr); 3575 continue; 3576 } 3577 } 3578 } 3579 3580 /************************************************************************ 3581 * Request a notification response from the adapter. 3582 * 3583 * If (cr) is NULL, this is the first request of the adapter, so 3584 * reset the adapter's message pointer and start with the oldest 3585 * message available. 3586 */ 3587 static void 3588 ciss_notify_event(struct ciss_softc *sc) 3589 { 3590 struct ciss_request *cr; 3591 struct ciss_command *cc; 3592 struct ciss_notify_cdb *cnc; 3593 int error; 3594 3595 debug_called(1); 3596 3597 cr = sc->ciss_periodic_notify; 3598 3599 /* get a request if we don't already have one */ 3600 if (cr == NULL) { 3601 if ((error = ciss_get_request(sc, &cr)) != 0) { 3602 debug(0, "can't get notify event request"); 3603 goto out; 3604 } 3605 sc->ciss_periodic_notify = cr; 3606 cr->cr_complete = ciss_notify_complete; 3607 debug(1, "acquired request %d", cr->cr_tag); 3608 } 3609 3610 /* 3611 * Get a databuffer if we don't already have one, note that the 3612 * adapter command wants a larger buffer than the actual 3613 * structure. 3614 */ 3615 if (cr->cr_data == NULL) { 3616 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3617 debug(0, "can't get notify event request buffer"); 3618 error = ENOMEM; 3619 goto out; 3620 } 3621 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3622 } 3623 3624 /* re-setup the request's command (since we never release it) XXX overkill*/ 3625 ciss_preen_command(cr); 3626 3627 /* (re)build the notify event command */ 3628 cc = cr->cr_cc; 3629 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3630 cc->header.address.physical.bus = 0; 3631 cc->header.address.physical.target = 0; 3632 3633 cc->cdb.cdb_length = sizeof(*cnc); 3634 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3635 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3636 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3637 cc->cdb.timeout = 0; /* no timeout, we hope */ 3638 3639 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3640 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE); 3641 cnc->opcode = CISS_OPCODE_READ; 3642 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT; 3643 cnc->timeout = 0; /* no timeout, we hope */ 3644 cnc->synchronous = 0; 3645 cnc->ordered = 0; 3646 cnc->seek_to_oldest = 0; 3647 if ((sc->ciss_flags & CISS_FLAG_RUNNING) == 0) 3648 cnc->new_only = 1; 3649 else 3650 cnc->new_only = 0; 3651 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3652 3653 /* submit the request */ 3654 error = ciss_start(cr); 3655 3656 out: 3657 if (error) { 3658 if (cr != NULL) { 3659 if (cr->cr_data != NULL) 3660 free(cr->cr_data, CISS_MALLOC_CLASS); 3661 ciss_release_request(cr); 3662 } 3663 sc->ciss_periodic_notify = NULL; 3664 debug(0, "can't submit notify event request"); 3665 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3666 } else { 3667 debug(1, "notify event submitted"); 3668 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK; 3669 } 3670 } 3671 3672 static void 3673 ciss_notify_complete(struct ciss_request *cr) 3674 { 3675 struct ciss_command *cc; 3676 struct ciss_notify *cn; 3677 struct ciss_softc *sc; 3678 int scsi_status; 3679 int command_status; 3680 debug_called(1); 3681 3682 cc = cr->cr_cc; 3683 cn = (struct ciss_notify *)cr->cr_data; 3684 sc = cr->cr_sc; 3685 3686 /* 3687 * Report request results, decode status. 3688 */ 3689 ciss_report_request(cr, &command_status, &scsi_status); 3690 3691 /* 3692 * Abort the chain on a fatal error. 3693 * 3694 * XXX which of these are actually errors? 3695 */ 3696 if ((command_status != CISS_CMD_STATUS_SUCCESS) && 3697 (command_status != CISS_CMD_STATUS_TARGET_STATUS) && 3698 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */ 3699 ciss_printf(sc, "fatal error in Notify Event request (%s)\n", 3700 ciss_name_command_status(command_status)); 3701 ciss_release_request(cr); 3702 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3703 return; 3704 } 3705 3706 /* 3707 * If the adapter gave us a text message, print it. 3708 */ 3709 if (cn->message[0] != 0) 3710 ciss_printf(sc, "*** %.80s\n", cn->message); 3711 3712 debug(0, "notify event class %d subclass %d detail %d", 3713 cn->class, cn->subclass, cn->detail); 3714 3715 /* 3716 * If the response indicates that the notifier has been aborted, 3717 * release the notifier command. 3718 */ 3719 if ((cn->class == CISS_NOTIFY_NOTIFIER) && 3720 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) && 3721 (cn->detail == 1)) { 3722 debug(0, "notifier exiting"); 3723 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3724 ciss_release_request(cr); 3725 sc->ciss_periodic_notify = NULL; 3726 wakeup(&sc->ciss_periodic_notify); 3727 } else { 3728 /* Handle notify events in a kernel thread */ 3729 ciss_enqueue_notify(cr); 3730 sc->ciss_periodic_notify = NULL; 3731 wakeup(&sc->ciss_periodic_notify); 3732 wakeup(&sc->ciss_notify); 3733 } 3734 /* 3735 * Send a new notify event command, if we're not aborting. 3736 */ 3737 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) { 3738 ciss_notify_event(sc); 3739 } 3740 } 3741 3742 /************************************************************************ 3743 * Abort the Notify Event chain. 3744 * 3745 * Note that we can't just abort the command in progress; we have to 3746 * explicitly issue an Abort Notify Event command in order for the 3747 * adapter to clean up correctly. 3748 * 3749 * If we are called with CISS_FLAG_ABORTING set in the adapter softc, 3750 * the chain will not restart itself. 3751 */ 3752 static int 3753 ciss_notify_abort(struct ciss_softc *sc) 3754 { 3755 struct ciss_request *cr; 3756 struct ciss_command *cc; 3757 struct ciss_notify_cdb *cnc; 3758 int error, command_status, scsi_status; 3759 3760 debug_called(1); 3761 3762 cr = NULL; 3763 error = 0; 3764 3765 /* verify that there's an outstanding command */ 3766 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3767 goto out; 3768 3769 /* get a command to issue the abort with */ 3770 if ((error = ciss_get_request(sc, &cr))) 3771 goto out; 3772 3773 /* get a buffer for the result */ 3774 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3775 debug(0, "can't get notify event request buffer"); 3776 error = ENOMEM; 3777 goto out; 3778 } 3779 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3780 3781 /* build the CDB */ 3782 cc = cr->cr_cc; 3783 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3784 cc->header.address.physical.bus = 0; 3785 cc->header.address.physical.target = 0; 3786 cc->cdb.cdb_length = sizeof(*cnc); 3787 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3788 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3789 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3790 cc->cdb.timeout = 0; /* no timeout, we hope */ 3791 3792 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3793 bzero(cnc, sizeof(*cnc)); 3794 cnc->opcode = CISS_OPCODE_WRITE; 3795 cnc->command = CISS_COMMAND_ABORT_NOTIFY; 3796 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3797 3798 ciss_print_request(cr); 3799 3800 /* 3801 * Submit the request and wait for it to complete. 3802 */ 3803 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3804 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error); 3805 goto out; 3806 } 3807 3808 /* 3809 * Check response. 3810 */ 3811 ciss_report_request(cr, &command_status, &scsi_status); 3812 switch(command_status) { 3813 case CISS_CMD_STATUS_SUCCESS: 3814 break; 3815 case CISS_CMD_STATUS_INVALID_COMMAND: 3816 /* 3817 * Some older adapters don't support the CISS version of this 3818 * command. Fall back to using the BMIC version. 3819 */ 3820 error = ciss_notify_abort_bmic(sc); 3821 if (error != 0) 3822 goto out; 3823 break; 3824 3825 case CISS_CMD_STATUS_TARGET_STATUS: 3826 /* 3827 * This can happen if the adapter thinks there wasn't an outstanding 3828 * Notify Event command but we did. We clean up here. 3829 */ 3830 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) { 3831 if (sc->ciss_periodic_notify != NULL) 3832 ciss_release_request(sc->ciss_periodic_notify); 3833 error = 0; 3834 goto out; 3835 } 3836 /* FALLTHROUGH */ 3837 3838 default: 3839 ciss_printf(sc, "Abort Notify Event command failed (%s)\n", 3840 ciss_name_command_status(command_status)); 3841 error = EIO; 3842 goto out; 3843 } 3844 3845 /* 3846 * Sleep waiting for the notifier command to complete. Note 3847 * that if it doesn't, we may end up in a bad situation, since 3848 * the adapter may deliver it later. Also note that the adapter 3849 * requires the Notify Event command to be cancelled in order to 3850 * maintain internal bookkeeping. 3851 */ 3852 while (sc->ciss_periodic_notify != NULL) { 3853 error = msleep(&sc->ciss_periodic_notify, &sc->ciss_mtx, PRIBIO, "cissNEA", hz * 5); 3854 if (error == EWOULDBLOCK) { 3855 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n"); 3856 break; 3857 } 3858 } 3859 3860 out: 3861 /* release the cancel request */ 3862 if (cr != NULL) { 3863 if (cr->cr_data != NULL) 3864 free(cr->cr_data, CISS_MALLOC_CLASS); 3865 ciss_release_request(cr); 3866 } 3867 if (error == 0) 3868 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3869 return(error); 3870 } 3871 3872 /************************************************************************ 3873 * Abort the Notify Event chain using a BMIC command. 3874 */ 3875 static int 3876 ciss_notify_abort_bmic(struct ciss_softc *sc) 3877 { 3878 struct ciss_request *cr; 3879 int error, command_status; 3880 3881 debug_called(1); 3882 3883 cr = NULL; 3884 error = 0; 3885 3886 /* verify that there's an outstanding command */ 3887 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3888 goto out; 3889 3890 /* 3891 * Build a BMIC command to cancel the Notify on Event command. 3892 * 3893 * Note that we are sending a CISS opcode here. Odd. 3894 */ 3895 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY, 3896 NULL, 0)) != 0) 3897 goto out; 3898 3899 /* 3900 * Submit the request and wait for it to complete. 3901 */ 3902 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3903 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error); 3904 goto out; 3905 } 3906 3907 /* 3908 * Check response. 3909 */ 3910 ciss_report_request(cr, &command_status, NULL); 3911 switch(command_status) { 3912 case CISS_CMD_STATUS_SUCCESS: 3913 break; 3914 default: 3915 ciss_printf(sc, "error cancelling Notify on Event (%s)\n", 3916 ciss_name_command_status(command_status)); 3917 error = EIO; 3918 goto out; 3919 } 3920 3921 out: 3922 if (cr != NULL) 3923 ciss_release_request(cr); 3924 return(error); 3925 } 3926 3927 /************************************************************************ 3928 * Handle rescanning all the logical volumes when a notify event 3929 * causes the drives to come online or offline. 3930 */ 3931 static void 3932 ciss_notify_rescan_logical(struct ciss_softc *sc) 3933 { 3934 struct ciss_lun_report *cll; 3935 struct ciss_ldrive *ld; 3936 int i, j, ndrives; 3937 3938 /* 3939 * We must rescan all logical volumes to get the right logical 3940 * drive address. 3941 */ 3942 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 3943 sc->ciss_cfg->max_logical_supported); 3944 if (cll == NULL) 3945 return; 3946 3947 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 3948 3949 /* 3950 * Delete any of the drives which were destroyed by the 3951 * firmware. 3952 */ 3953 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 3954 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) { 3955 ld = &sc->ciss_logical[i][j]; 3956 3957 if (ld->cl_update == 0) 3958 continue; 3959 3960 if (ld->cl_status != CISS_LD_ONLINE) { 3961 ciss_cam_rescan_target(sc, i, j); 3962 ld->cl_update = 0; 3963 if (ld->cl_ldrive) 3964 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 3965 if (ld->cl_lstatus) 3966 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 3967 3968 ld->cl_ldrive = NULL; 3969 ld->cl_lstatus = NULL; 3970 } 3971 } 3972 } 3973 3974 /* 3975 * Scan for new drives. 3976 */ 3977 for (i = 0; i < ndrives; i++) { 3978 int bus, target; 3979 3980 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 3981 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 3982 ld = &sc->ciss_logical[bus][target]; 3983 3984 if (ld->cl_update == 0) 3985 continue; 3986 3987 ld->cl_update = 0; 3988 ld->cl_address = cll->lun[i]; 3989 ld->cl_controller = &sc->ciss_controllers[bus]; 3990 if (ciss_identify_logical(sc, ld) == 0) { 3991 ciss_cam_rescan_target(sc, bus, target); 3992 } 3993 } 3994 free(cll, CISS_MALLOC_CLASS); 3995 } 3996 3997 /************************************************************************ 3998 * Handle a notify event relating to the status of a logical drive. 3999 * 4000 * XXX need to be able to defer some of these to properly handle 4001 * calling the "ID Physical drive" command, unless the 'extended' 4002 * drive IDs are always in BIG_MAP format. 4003 */ 4004 static void 4005 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn) 4006 { 4007 struct ciss_ldrive *ld; 4008 int bus, target; 4009 int rescan_ld; 4010 4011 debug_called(2); 4012 4013 bus = cn->device.physical.bus; 4014 target = cn->data.logical_status.logical_drive; 4015 ld = &sc->ciss_logical[bus][target]; 4016 4017 switch (cn->subclass) { 4018 case CISS_NOTIFY_LOGICAL_STATUS: 4019 switch (cn->detail) { 4020 case 0: 4021 ciss_name_device(sc, bus, target); 4022 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n", 4023 cn->data.logical_status.logical_drive, ld->cl_name, 4024 ciss_name_ldrive_status(cn->data.logical_status.previous_state), 4025 ciss_name_ldrive_status(cn->data.logical_status.new_state), 4026 cn->data.logical_status.spare_state, 4027 "\20\1configured\2rebuilding\3failed\4in use\5available\n"); 4028 4029 /* 4030 * Update our idea of the drive's status. 4031 */ 4032 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 4033 if (ld->cl_lstatus != NULL) 4034 ld->cl_lstatus->status = cn->data.logical_status.new_state; 4035 4036 /* 4037 * Have CAM rescan the drive if its status has changed. 4038 */ 4039 rescan_ld = (cn->data.logical_status.previous_state != 4040 cn->data.logical_status.new_state) ? 1 : 0; 4041 if (rescan_ld) { 4042 ld->cl_update = 1; 4043 ciss_notify_rescan_logical(sc); 4044 } 4045 4046 break; 4047 4048 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */ 4049 ciss_name_device(sc, bus, target); 4050 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n", 4051 cn->data.logical_status.logical_drive, ld->cl_name); 4052 ciss_accept_media(sc, ld); 4053 4054 ld->cl_update = 1; 4055 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 4056 ciss_notify_rescan_logical(sc); 4057 break; 4058 4059 case 2: 4060 case 3: 4061 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n", 4062 cn->data.rebuild_aborted.logical_drive, 4063 ld->cl_name, 4064 (cn->detail == 2) ? "read" : "write"); 4065 break; 4066 } 4067 break; 4068 4069 case CISS_NOTIFY_LOGICAL_ERROR: 4070 if (cn->detail == 0) { 4071 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n", 4072 cn->data.io_error.logical_drive, 4073 ld->cl_name, 4074 cn->data.io_error.failure_bus, 4075 cn->data.io_error.failure_drive); 4076 /* XXX should we take the drive down at this point, or will we be told? */ 4077 } 4078 break; 4079 4080 case CISS_NOTIFY_LOGICAL_SURFACE: 4081 if (cn->detail == 0) 4082 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n", 4083 cn->data.consistency_completed.logical_drive, 4084 ld->cl_name); 4085 break; 4086 } 4087 } 4088 4089 /************************************************************************ 4090 * Handle a notify event relating to the status of a physical drive. 4091 */ 4092 static void 4093 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn) 4094 { 4095 } 4096 4097 /************************************************************************ 4098 * Handle a notify event relating to the status of a physical drive. 4099 */ 4100 static void 4101 ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn) 4102 { 4103 struct ciss_lun_report *cll = NULL; 4104 int bus, target; 4105 4106 switch (cn->subclass) { 4107 case CISS_NOTIFY_HOTPLUG_PHYSICAL: 4108 case CISS_NOTIFY_HOTPLUG_NONDISK: 4109 bus = CISS_BIG_MAP_BUS(sc, cn->data.drive.big_physical_drive_number); 4110 target = 4111 CISS_BIG_MAP_TARGET(sc, cn->data.drive.big_physical_drive_number); 4112 4113 if (cn->detail == 0) { 4114 /* 4115 * Mark the device offline so that it'll start producing selection 4116 * timeouts to the upper layer. 4117 */ 4118 if ((bus >= 0) && (target >= 0)) 4119 sc->ciss_physical[bus][target].cp_online = 0; 4120 } else { 4121 /* 4122 * Rescan the physical lun list for new items 4123 */ 4124 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 4125 sc->ciss_cfg->max_physical_supported); 4126 if (cll == NULL) { 4127 ciss_printf(sc, "Warning, cannot get physical lun list\n"); 4128 break; 4129 } 4130 ciss_filter_physical(sc, cll); 4131 } 4132 break; 4133 4134 default: 4135 ciss_printf(sc, "Unknown hotplug event %d\n", cn->subclass); 4136 return; 4137 } 4138 4139 if (cll != NULL) 4140 free(cll, CISS_MALLOC_CLASS); 4141 } 4142 4143 /************************************************************************ 4144 * Handle deferred processing of notify events. Notify events may need 4145 * sleep which is unsafe during an interrupt. 4146 */ 4147 static void 4148 ciss_notify_thread(void *arg) 4149 { 4150 struct ciss_softc *sc; 4151 struct ciss_request *cr; 4152 struct ciss_notify *cn; 4153 4154 sc = (struct ciss_softc *)arg; 4155 #if __FreeBSD_version >= 500000 4156 mtx_lock(&sc->ciss_mtx); 4157 #endif 4158 4159 for (;;) { 4160 if (STAILQ_EMPTY(&sc->ciss_notify) != 0 && 4161 (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) == 0) { 4162 msleep(&sc->ciss_notify, &sc->ciss_mtx, PUSER, "idle", 0); 4163 } 4164 4165 if (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) 4166 break; 4167 4168 cr = ciss_dequeue_notify(sc); 4169 4170 if (cr == NULL) 4171 panic("cr null"); 4172 cn = (struct ciss_notify *)cr->cr_data; 4173 4174 switch (cn->class) { 4175 case CISS_NOTIFY_HOTPLUG: 4176 ciss_notify_hotplug(sc, cn); 4177 break; 4178 case CISS_NOTIFY_LOGICAL: 4179 ciss_notify_logical(sc, cn); 4180 break; 4181 case CISS_NOTIFY_PHYSICAL: 4182 ciss_notify_physical(sc, cn); 4183 break; 4184 } 4185 4186 ciss_release_request(cr); 4187 4188 } 4189 sc->ciss_notify_thread = NULL; 4190 wakeup(&sc->ciss_notify_thread); 4191 4192 #if __FreeBSD_version >= 500000 4193 mtx_unlock(&sc->ciss_mtx); 4194 #endif 4195 kproc_exit(0); 4196 } 4197 4198 /************************************************************************ 4199 * Start the notification kernel thread. 4200 */ 4201 static void 4202 ciss_spawn_notify_thread(struct ciss_softc *sc) 4203 { 4204 4205 #if __FreeBSD_version > 500005 4206 if (kproc_create((void(*)(void *))ciss_notify_thread, sc, 4207 &sc->ciss_notify_thread, 0, 0, "ciss_notify%d", 4208 device_get_unit(sc->ciss_dev))) 4209 #else 4210 if (kproc_create((void(*)(void *))ciss_notify_thread, sc, 4211 &sc->ciss_notify_thread, "ciss_notify%d", 4212 device_get_unit(sc->ciss_dev))) 4213 #endif 4214 panic("Could not create notify thread\n"); 4215 } 4216 4217 /************************************************************************ 4218 * Kill the notification kernel thread. 4219 */ 4220 static void 4221 ciss_kill_notify_thread(struct ciss_softc *sc) 4222 { 4223 4224 if (sc->ciss_notify_thread == NULL) 4225 return; 4226 4227 sc->ciss_flags |= CISS_FLAG_THREAD_SHUT; 4228 wakeup(&sc->ciss_notify); 4229 msleep(&sc->ciss_notify_thread, &sc->ciss_mtx, PUSER, "thtrm", 0); 4230 } 4231 4232 /************************************************************************ 4233 * Print a request. 4234 */ 4235 static void 4236 ciss_print_request(struct ciss_request *cr) 4237 { 4238 struct ciss_softc *sc; 4239 struct ciss_command *cc; 4240 int i; 4241 4242 sc = cr->cr_sc; 4243 cc = cr->cr_cc; 4244 4245 ciss_printf(sc, "REQUEST @ %p\n", cr); 4246 ciss_printf(sc, " data %p/%d tag %d flags %b\n", 4247 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags, 4248 "\20\1mapped\2sleep\3poll\4dataout\5datain\n"); 4249 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n", 4250 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag); 4251 switch(cc->header.address.mode.mode) { 4252 case CISS_HDR_ADDRESS_MODE_PERIPHERAL: 4253 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL: 4254 ciss_printf(sc, " physical bus %d target %d\n", 4255 cc->header.address.physical.bus, cc->header.address.physical.target); 4256 break; 4257 case CISS_HDR_ADDRESS_MODE_LOGICAL: 4258 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun); 4259 break; 4260 } 4261 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n", 4262 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" : 4263 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" : 4264 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??", 4265 cc->cdb.cdb_length, 4266 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" : 4267 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??", 4268 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" : 4269 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" : 4270 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" : 4271 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" : 4272 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??"); 4273 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " "); 4274 4275 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) { 4276 /* XXX print error info */ 4277 } else { 4278 /* since we don't use chained s/g, don't support it here */ 4279 for (i = 0; i < cc->header.sg_in_list; i++) { 4280 if ((i % 4) == 0) 4281 ciss_printf(sc, " "); 4282 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length); 4283 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1))) 4284 printf("\n"); 4285 } 4286 } 4287 } 4288 4289 /************************************************************************ 4290 * Print information about the status of a logical drive. 4291 */ 4292 static void 4293 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld) 4294 { 4295 int bus, target, i; 4296 4297 if (ld->cl_lstatus == NULL) { 4298 printf("does not exist\n"); 4299 return; 4300 } 4301 4302 /* print drive status */ 4303 switch(ld->cl_lstatus->status) { 4304 case CISS_LSTATUS_OK: 4305 printf("online\n"); 4306 break; 4307 case CISS_LSTATUS_INTERIM_RECOVERY: 4308 printf("in interim recovery mode\n"); 4309 break; 4310 case CISS_LSTATUS_READY_RECOVERY: 4311 printf("ready to begin recovery\n"); 4312 break; 4313 case CISS_LSTATUS_RECOVERING: 4314 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4315 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4316 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n", 4317 bus, target, ld->cl_lstatus->blocks_to_recover); 4318 break; 4319 case CISS_LSTATUS_EXPANDING: 4320 printf("being expanded, %u blocks remaining\n", 4321 ld->cl_lstatus->blocks_to_recover); 4322 break; 4323 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4324 printf("queued for expansion\n"); 4325 break; 4326 case CISS_LSTATUS_FAILED: 4327 printf("queued for expansion\n"); 4328 break; 4329 case CISS_LSTATUS_WRONG_PDRIVE: 4330 printf("wrong physical drive inserted\n"); 4331 break; 4332 case CISS_LSTATUS_MISSING_PDRIVE: 4333 printf("missing a needed physical drive\n"); 4334 break; 4335 case CISS_LSTATUS_BECOMING_READY: 4336 printf("becoming ready\n"); 4337 break; 4338 } 4339 4340 /* print failed physical drives */ 4341 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) { 4342 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]); 4343 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]); 4344 if (bus == -1) 4345 continue; 4346 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target, 4347 ld->cl_lstatus->drive_failure_map[i]); 4348 } 4349 } 4350 4351 #ifdef CISS_DEBUG 4352 #include "opt_ddb.h" 4353 #ifdef DDB 4354 #include <ddb/ddb.h> 4355 /************************************************************************ 4356 * Print information about the controller/driver. 4357 */ 4358 static void 4359 ciss_print_adapter(struct ciss_softc *sc) 4360 { 4361 int i, j; 4362 4363 ciss_printf(sc, "ADAPTER:\n"); 4364 for (i = 0; i < CISSQ_COUNT; i++) { 4365 ciss_printf(sc, "%s %d/%d\n", 4366 i == 0 ? "free" : 4367 i == 1 ? "busy" : "complete", 4368 sc->ciss_qstat[i].q_length, 4369 sc->ciss_qstat[i].q_max); 4370 } 4371 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests); 4372 ciss_printf(sc, "flags %b\n", sc->ciss_flags, 4373 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n"); 4374 4375 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 4376 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) { 4377 ciss_printf(sc, "LOGICAL DRIVE %d: ", i); 4378 ciss_print_ldrive(sc, &sc->ciss_logical[i][j]); 4379 } 4380 } 4381 4382 /* XXX Should physical drives be printed out here? */ 4383 4384 for (i = 1; i < sc->ciss_max_requests; i++) 4385 ciss_print_request(sc->ciss_request + i); 4386 } 4387 4388 /* DDB hook */ 4389 DB_COMMAND(ciss_prt, db_ciss_prt) 4390 { 4391 struct ciss_softc *sc; 4392 devclass_t dc; 4393 int maxciss, i; 4394 4395 dc = devclass_find("ciss"); 4396 if ( dc == NULL ) { 4397 printf("%s: can't find devclass!\n", __func__); 4398 return; 4399 } 4400 maxciss = devclass_get_maxunit(dc); 4401 for (i = 0; i < maxciss; i++) { 4402 sc = devclass_get_softc(dc, i); 4403 ciss_print_adapter(sc); 4404 } 4405 } 4406 #endif 4407 #endif 4408 4409 /************************************************************************ 4410 * Return a name for a logical drive status value. 4411 */ 4412 static const char * 4413 ciss_name_ldrive_status(int status) 4414 { 4415 switch (status) { 4416 case CISS_LSTATUS_OK: 4417 return("OK"); 4418 case CISS_LSTATUS_FAILED: 4419 return("failed"); 4420 case CISS_LSTATUS_NOT_CONFIGURED: 4421 return("not configured"); 4422 case CISS_LSTATUS_INTERIM_RECOVERY: 4423 return("interim recovery"); 4424 case CISS_LSTATUS_READY_RECOVERY: 4425 return("ready for recovery"); 4426 case CISS_LSTATUS_RECOVERING: 4427 return("recovering"); 4428 case CISS_LSTATUS_WRONG_PDRIVE: 4429 return("wrong physical drive inserted"); 4430 case CISS_LSTATUS_MISSING_PDRIVE: 4431 return("missing physical drive"); 4432 case CISS_LSTATUS_EXPANDING: 4433 return("expanding"); 4434 case CISS_LSTATUS_BECOMING_READY: 4435 return("becoming ready"); 4436 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4437 return("queued for expansion"); 4438 } 4439 return("unknown status"); 4440 } 4441 4442 /************************************************************************ 4443 * Return an online/offline/nonexistent value for a logical drive 4444 * status value. 4445 */ 4446 static int 4447 ciss_decode_ldrive_status(int status) 4448 { 4449 switch(status) { 4450 case CISS_LSTATUS_NOT_CONFIGURED: 4451 return(CISS_LD_NONEXISTENT); 4452 4453 case CISS_LSTATUS_OK: 4454 case CISS_LSTATUS_INTERIM_RECOVERY: 4455 case CISS_LSTATUS_READY_RECOVERY: 4456 case CISS_LSTATUS_RECOVERING: 4457 case CISS_LSTATUS_EXPANDING: 4458 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4459 return(CISS_LD_ONLINE); 4460 4461 case CISS_LSTATUS_FAILED: 4462 case CISS_LSTATUS_WRONG_PDRIVE: 4463 case CISS_LSTATUS_MISSING_PDRIVE: 4464 case CISS_LSTATUS_BECOMING_READY: 4465 default: 4466 return(CISS_LD_OFFLINE); 4467 } 4468 } 4469 4470 4471 /************************************************************************ 4472 * Return a name for a logical drive's organisation. 4473 */ 4474 static const char * 4475 ciss_name_ldrive_org(int org) 4476 { 4477 switch(org) { 4478 case CISS_LDRIVE_RAID0: 4479 return("RAID 0"); 4480 case CISS_LDRIVE_RAID1: 4481 return("RAID 1(1+0)"); 4482 case CISS_LDRIVE_RAID4: 4483 return("RAID 4"); 4484 case CISS_LDRIVE_RAID5: 4485 return("RAID 5"); 4486 case CISS_LDRIVE_RAID51: 4487 return("RAID 5+1"); 4488 case CISS_LDRIVE_RAIDADG: 4489 return("RAID ADG"); 4490 } 4491 return("unkown"); 4492 } 4493 4494 /************************************************************************ 4495 * Return a name for a command status value. 4496 */ 4497 static const char * 4498 ciss_name_command_status(int status) 4499 { 4500 switch(status) { 4501 case CISS_CMD_STATUS_SUCCESS: 4502 return("success"); 4503 case CISS_CMD_STATUS_TARGET_STATUS: 4504 return("target status"); 4505 case CISS_CMD_STATUS_DATA_UNDERRUN: 4506 return("data underrun"); 4507 case CISS_CMD_STATUS_DATA_OVERRUN: 4508 return("data overrun"); 4509 case CISS_CMD_STATUS_INVALID_COMMAND: 4510 return("invalid command"); 4511 case CISS_CMD_STATUS_PROTOCOL_ERROR: 4512 return("protocol error"); 4513 case CISS_CMD_STATUS_HARDWARE_ERROR: 4514 return("hardware error"); 4515 case CISS_CMD_STATUS_CONNECTION_LOST: 4516 return("connection lost"); 4517 case CISS_CMD_STATUS_ABORTED: 4518 return("aborted"); 4519 case CISS_CMD_STATUS_ABORT_FAILED: 4520 return("abort failed"); 4521 case CISS_CMD_STATUS_UNSOLICITED_ABORT: 4522 return("unsolicited abort"); 4523 case CISS_CMD_STATUS_TIMEOUT: 4524 return("timeout"); 4525 case CISS_CMD_STATUS_UNABORTABLE: 4526 return("unabortable"); 4527 } 4528 return("unknown status"); 4529 } 4530 4531 /************************************************************************ 4532 * Handle an open on the control device. 4533 */ 4534 static int 4535 ciss_open(struct cdev *dev, int flags, int fmt, struct thread *p) 4536 { 4537 struct ciss_softc *sc; 4538 4539 debug_called(1); 4540 4541 sc = (struct ciss_softc *)dev->si_drv1; 4542 4543 /* we might want to veto if someone already has us open */ 4544 4545 mtx_lock(&sc->ciss_mtx); 4546 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN; 4547 mtx_unlock(&sc->ciss_mtx); 4548 return(0); 4549 } 4550 4551 /************************************************************************ 4552 * Handle the last close on the control device. 4553 */ 4554 static int 4555 ciss_close(struct cdev *dev, int flags, int fmt, struct thread *p) 4556 { 4557 struct ciss_softc *sc; 4558 4559 debug_called(1); 4560 4561 sc = (struct ciss_softc *)dev->si_drv1; 4562 4563 mtx_lock(&sc->ciss_mtx); 4564 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN; 4565 mtx_unlock(&sc->ciss_mtx); 4566 return (0); 4567 } 4568 4569 /******************************************************************************** 4570 * Handle adapter-specific control operations. 4571 * 4572 * Note that the API here is compatible with the Linux driver, in order to 4573 * simplify the porting of Compaq's userland tools. 4574 */ 4575 static int 4576 ciss_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag, struct thread *p) 4577 { 4578 struct ciss_softc *sc; 4579 IOCTL_Command_struct *ioc = (IOCTL_Command_struct *)addr; 4580 #ifdef __amd64__ 4581 IOCTL_Command_struct32 *ioc32 = (IOCTL_Command_struct32 *)addr; 4582 IOCTL_Command_struct ioc_swab; 4583 #endif 4584 int error; 4585 4586 debug_called(1); 4587 4588 sc = (struct ciss_softc *)dev->si_drv1; 4589 error = 0; 4590 mtx_lock(&sc->ciss_mtx); 4591 4592 switch(cmd) { 4593 case CCISS_GETQSTATS: 4594 { 4595 union ciss_statrequest *cr = (union ciss_statrequest *)addr; 4596 4597 switch (cr->cs_item) { 4598 case CISSQ_FREE: 4599 case CISSQ_NOTIFY: 4600 bcopy(&sc->ciss_qstat[cr->cs_item], &cr->cs_qstat, 4601 sizeof(struct ciss_qstat)); 4602 break; 4603 default: 4604 error = ENOIOCTL; 4605 break; 4606 } 4607 4608 break; 4609 } 4610 4611 case CCISS_GETPCIINFO: 4612 { 4613 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr; 4614 4615 pis->bus = pci_get_bus(sc->ciss_dev); 4616 pis->dev_fn = pci_get_slot(sc->ciss_dev); 4617 pis->board_id = (pci_get_subvendor(sc->ciss_dev) << 16) | 4618 pci_get_subdevice(sc->ciss_dev); 4619 4620 break; 4621 } 4622 4623 case CCISS_GETINTINFO: 4624 { 4625 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4626 4627 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay; 4628 cis->count = sc->ciss_cfg->interrupt_coalesce_count; 4629 4630 break; 4631 } 4632 4633 case CCISS_SETINTINFO: 4634 { 4635 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4636 4637 if ((cis->delay == 0) && (cis->count == 0)) { 4638 error = EINVAL; 4639 break; 4640 } 4641 4642 /* 4643 * XXX apparently this is only safe if the controller is idle, 4644 * we should suspend it before doing this. 4645 */ 4646 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay; 4647 sc->ciss_cfg->interrupt_coalesce_count = cis->count; 4648 4649 if (ciss_update_config(sc)) 4650 error = EIO; 4651 4652 /* XXX resume the controller here */ 4653 break; 4654 } 4655 4656 case CCISS_GETNODENAME: 4657 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr, 4658 sizeof(NodeName_type)); 4659 break; 4660 4661 case CCISS_SETNODENAME: 4662 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name, 4663 sizeof(NodeName_type)); 4664 if (ciss_update_config(sc)) 4665 error = EIO; 4666 break; 4667 4668 case CCISS_GETHEARTBEAT: 4669 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat; 4670 break; 4671 4672 case CCISS_GETBUSTYPES: 4673 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types; 4674 break; 4675 4676 case CCISS_GETFIRMVER: 4677 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr, 4678 sizeof(FirmwareVer_type)); 4679 break; 4680 4681 case CCISS_GETDRIVERVER: 4682 *(DriverVer_type *)addr = CISS_DRIVER_VERSION; 4683 break; 4684 4685 case CCISS_REVALIDVOLS: 4686 /* 4687 * This is a bit ugly; to do it "right" we really need 4688 * to find any disks that have changed, kick CAM off them, 4689 * then rescan only these disks. It'd be nice if they 4690 * a) told us which disk(s) they were going to play with, 4691 * and b) which ones had arrived. 8( 4692 */ 4693 break; 4694 4695 #ifdef __amd64__ 4696 case CCISS_PASSTHRU32: 4697 ioc_swab.LUN_info = ioc32->LUN_info; 4698 ioc_swab.Request = ioc32->Request; 4699 ioc_swab.error_info = ioc32->error_info; 4700 ioc_swab.buf_size = ioc32->buf_size; 4701 ioc_swab.buf = (u_int8_t *)(uintptr_t)ioc32->buf; 4702 ioc = &ioc_swab; 4703 /* FALLTHROUGH */ 4704 #endif 4705 4706 case CCISS_PASSTHRU: 4707 error = ciss_user_command(sc, ioc); 4708 break; 4709 4710 default: 4711 debug(0, "unknown ioctl 0x%lx", cmd); 4712 4713 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO); 4714 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO); 4715 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO); 4716 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME); 4717 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME); 4718 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT); 4719 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES); 4720 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER); 4721 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER); 4722 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS); 4723 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU); 4724 4725 error = ENOIOCTL; 4726 break; 4727 } 4728 4729 mtx_unlock(&sc->ciss_mtx); 4730 return(error); 4731 } 4732