1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2001 Michael Smith 5 * Copyright (c) 2004 Paul Saab 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * $FreeBSD$ 30 */ 31 32 /* 33 * Common Interface for SCSI-3 Support driver. 34 * 35 * CISS claims to provide a common interface between a generic SCSI 36 * transport and an intelligent host adapter. 37 * 38 * This driver supports CISS as defined in the document "CISS Command 39 * Interface for SCSI-3 Support Open Specification", Version 1.04, 40 * Valence Number 1, dated 20001127, produced by Compaq Computer 41 * Corporation. This document appears to be a hastily and somewhat 42 * arbitrarlily cut-down version of a larger (and probably even more 43 * chaotic and inconsistent) Compaq internal document. Various 44 * details were also gleaned from Compaq's "cciss" driver for Linux. 45 * 46 * We provide a shim layer between the CISS interface and CAM, 47 * offloading most of the queueing and being-a-disk chores onto CAM. 48 * Entry to the driver is via the PCI bus attachment (ciss_probe, 49 * ciss_attach, etc) and via the CAM interface (ciss_cam_action, 50 * ciss_cam_poll). The Compaq CISS adapters are, however, poor SCSI 51 * citizens and we have to fake up some responses to get reasonable 52 * behaviour out of them. In addition, the CISS command set is by no 53 * means adequate to support the functionality of a RAID controller, 54 * and thus the supported Compaq adapters utilise portions of the 55 * control protocol from earlier Compaq adapter families. 56 * 57 * Note that we only support the "simple" transport layer over PCI. 58 * This interface (ab)uses the I2O register set (specifically the post 59 * queues) to exchange commands with the adapter. Other interfaces 60 * are available, but we aren't supposed to know about them, and it is 61 * dubious whether they would provide major performance improvements 62 * except under extreme load. 63 * 64 * Currently the only supported CISS adapters are the Compaq Smart 65 * Array 5* series (5300, 5i, 532). Even with only three adapters, 66 * Compaq still manage to have interface variations. 67 * 68 * 69 * Thanks must go to Fred Harris and Darryl DeVinney at Compaq, as 70 * well as Paul Saab at Yahoo! for their assistance in making this 71 * driver happen. 72 * 73 * More thanks must go to John Cagle at HP for the countless hours 74 * spent making this driver "work" with the MSA* series storage 75 * enclosures. Without his help (and nagging), this driver could not 76 * be used with these enclosures. 77 */ 78 79 #include <sys/param.h> 80 #include <sys/systm.h> 81 #include <sys/malloc.h> 82 #include <sys/kernel.h> 83 #include <sys/bus.h> 84 #include <sys/conf.h> 85 #include <sys/stat.h> 86 #include <sys/kthread.h> 87 #include <sys/queue.h> 88 #include <sys/sysctl.h> 89 90 #include <cam/cam.h> 91 #include <cam/cam_ccb.h> 92 #include <cam/cam_periph.h> 93 #include <cam/cam_sim.h> 94 #include <cam/cam_xpt_sim.h> 95 #include <cam/scsi/scsi_all.h> 96 #include <cam/scsi/scsi_message.h> 97 98 #include <machine/bus.h> 99 #include <machine/endian.h> 100 #include <machine/resource.h> 101 #include <sys/rman.h> 102 103 #include <dev/pci/pcireg.h> 104 #include <dev/pci/pcivar.h> 105 106 #include <dev/ciss/cissreg.h> 107 #include <dev/ciss/cissio.h> 108 #include <dev/ciss/cissvar.h> 109 110 static MALLOC_DEFINE(CISS_MALLOC_CLASS, "ciss_data", 111 "ciss internal data buffers"); 112 113 /* pci interface */ 114 static int ciss_lookup(device_t dev); 115 static int ciss_probe(device_t dev); 116 static int ciss_attach(device_t dev); 117 static int ciss_detach(device_t dev); 118 static int ciss_shutdown(device_t dev); 119 120 /* (de)initialisation functions, control wrappers */ 121 static int ciss_init_pci(struct ciss_softc *sc); 122 static int ciss_setup_msix(struct ciss_softc *sc); 123 static int ciss_init_perf(struct ciss_softc *sc); 124 static int ciss_wait_adapter(struct ciss_softc *sc); 125 static int ciss_flush_adapter(struct ciss_softc *sc); 126 static int ciss_init_requests(struct ciss_softc *sc); 127 static void ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, 128 int nseg, int error); 129 static int ciss_identify_adapter(struct ciss_softc *sc); 130 static int ciss_init_logical(struct ciss_softc *sc); 131 static int ciss_init_physical(struct ciss_softc *sc); 132 static int ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll); 133 static int ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld); 134 static int ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld); 135 static int ciss_update_config(struct ciss_softc *sc); 136 static int ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld); 137 static void ciss_init_sysctl(struct ciss_softc *sc); 138 static void ciss_soft_reset(struct ciss_softc *sc); 139 static void ciss_free(struct ciss_softc *sc); 140 static void ciss_spawn_notify_thread(struct ciss_softc *sc); 141 static void ciss_kill_notify_thread(struct ciss_softc *sc); 142 143 /* request submission/completion */ 144 static int ciss_start(struct ciss_request *cr); 145 static void ciss_done(struct ciss_softc *sc, cr_qhead_t *qh); 146 static void ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh); 147 static void ciss_intr(void *arg); 148 static void ciss_perf_intr(void *arg); 149 static void ciss_perf_msi_intr(void *arg); 150 static void ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh); 151 static int _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func); 152 static int ciss_synch_request(struct ciss_request *cr, int timeout); 153 static int ciss_poll_request(struct ciss_request *cr, int timeout); 154 static int ciss_wait_request(struct ciss_request *cr, int timeout); 155 #if 0 156 static int ciss_abort_request(struct ciss_request *cr); 157 #endif 158 159 /* request queueing */ 160 static int ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp); 161 static void ciss_preen_command(struct ciss_request *cr); 162 static void ciss_release_request(struct ciss_request *cr); 163 164 /* request helpers */ 165 static int ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 166 int opcode, void **bufp, size_t bufsize); 167 static int ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc); 168 169 /* DMA map/unmap */ 170 static int ciss_map_request(struct ciss_request *cr); 171 static void ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, 172 int nseg, int error); 173 static void ciss_unmap_request(struct ciss_request *cr); 174 175 /* CAM interface */ 176 static int ciss_cam_init(struct ciss_softc *sc); 177 static void ciss_cam_rescan_target(struct ciss_softc *sc, 178 int bus, int target); 179 static void ciss_cam_action(struct cam_sim *sim, union ccb *ccb); 180 static int ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio); 181 static int ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio); 182 static void ciss_cam_poll(struct cam_sim *sim); 183 static void ciss_cam_complete(struct ciss_request *cr); 184 static void ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio); 185 static int ciss_name_device(struct ciss_softc *sc, int bus, int target); 186 187 /* periodic status monitoring */ 188 static void ciss_periodic(void *arg); 189 static void ciss_nop_complete(struct ciss_request *cr); 190 static void ciss_disable_adapter(struct ciss_softc *sc); 191 static void ciss_notify_event(struct ciss_softc *sc); 192 static void ciss_notify_complete(struct ciss_request *cr); 193 static int ciss_notify_abort(struct ciss_softc *sc); 194 static int ciss_notify_abort_bmic(struct ciss_softc *sc); 195 static void ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn); 196 static void ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn); 197 static void ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn); 198 199 /* debugging output */ 200 static void ciss_print_request(struct ciss_request *cr); 201 static void ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld); 202 static const char *ciss_name_ldrive_status(int status); 203 static int ciss_decode_ldrive_status(int status); 204 static const char *ciss_name_ldrive_org(int org); 205 static const char *ciss_name_command_status(int status); 206 207 /* 208 * PCI bus interface. 209 */ 210 static device_method_t ciss_methods[] = { 211 /* Device interface */ 212 DEVMETHOD(device_probe, ciss_probe), 213 DEVMETHOD(device_attach, ciss_attach), 214 DEVMETHOD(device_detach, ciss_detach), 215 DEVMETHOD(device_shutdown, ciss_shutdown), 216 { 0, 0 } 217 }; 218 219 static driver_t ciss_pci_driver = { 220 "ciss", 221 ciss_methods, 222 sizeof(struct ciss_softc) 223 }; 224 225 static devclass_t ciss_devclass; 226 DRIVER_MODULE(ciss, pci, ciss_pci_driver, ciss_devclass, 0, 0); 227 MODULE_DEPEND(ciss, cam, 1, 1, 1); 228 MODULE_DEPEND(ciss, pci, 1, 1, 1); 229 230 /* 231 * Control device interface. 232 */ 233 static d_open_t ciss_open; 234 static d_close_t ciss_close; 235 static d_ioctl_t ciss_ioctl; 236 237 static struct cdevsw ciss_cdevsw = { 238 .d_version = D_VERSION, 239 .d_flags = 0, 240 .d_open = ciss_open, 241 .d_close = ciss_close, 242 .d_ioctl = ciss_ioctl, 243 .d_name = "ciss", 244 }; 245 246 /* 247 * This tunable can be set at boot time and controls whether physical devices 248 * that are marked hidden by the firmware should be exposed anyways. 249 */ 250 static unsigned int ciss_expose_hidden_physical = 0; 251 TUNABLE_INT("hw.ciss.expose_hidden_physical", &ciss_expose_hidden_physical); 252 253 static unsigned int ciss_nop_message_heartbeat = 0; 254 TUNABLE_INT("hw.ciss.nop_message_heartbeat", &ciss_nop_message_heartbeat); 255 256 /* 257 * This tunable can force a particular transport to be used: 258 * <= 0 : use default 259 * 1 : force simple 260 * 2 : force performant 261 */ 262 static int ciss_force_transport = 0; 263 TUNABLE_INT("hw.ciss.force_transport", &ciss_force_transport); 264 265 /* 266 * This tunable can force a particular interrupt delivery method to be used: 267 * <= 0 : use default 268 * 1 : force INTx 269 * 2 : force MSIX 270 */ 271 static int ciss_force_interrupt = 0; 272 TUNABLE_INT("hw.ciss.force_interrupt", &ciss_force_interrupt); 273 274 /************************************************************************ 275 * CISS adapters amazingly don't have a defined programming interface 276 * value. (One could say some very despairing things about PCI and 277 * people just not getting the general idea.) So we are forced to 278 * stick with matching against subvendor/subdevice, and thus have to 279 * be updated for every new CISS adapter that appears. 280 */ 281 #define CISS_BOARD_UNKNWON 0 282 #define CISS_BOARD_SA5 1 283 #define CISS_BOARD_SA5B 2 284 #define CISS_BOARD_NOMSI (1<<4) 285 #define CISS_BOARD_SIMPLE (1<<5) 286 287 static struct 288 { 289 u_int16_t subvendor; 290 u_int16_t subdevice; 291 int flags; 292 char *desc; 293 } ciss_vendor_data[] = { 294 { 0x0e11, 0x4070, CISS_BOARD_SA5|CISS_BOARD_NOMSI|CISS_BOARD_SIMPLE, 295 "Compaq Smart Array 5300" }, 296 { 0x0e11, 0x4080, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 5i" }, 297 { 0x0e11, 0x4082, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 532" }, 298 { 0x0e11, 0x4083, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "HP Smart Array 5312" }, 299 { 0x0e11, 0x4091, CISS_BOARD_SA5, "HP Smart Array 6i" }, 300 { 0x0e11, 0x409A, CISS_BOARD_SA5, "HP Smart Array 641" }, 301 { 0x0e11, 0x409B, CISS_BOARD_SA5, "HP Smart Array 642" }, 302 { 0x0e11, 0x409C, CISS_BOARD_SA5, "HP Smart Array 6400" }, 303 { 0x0e11, 0x409D, CISS_BOARD_SA5, "HP Smart Array 6400 EM" }, 304 { 0x103C, 0x3211, CISS_BOARD_SA5, "HP Smart Array E200i" }, 305 { 0x103C, 0x3212, CISS_BOARD_SA5, "HP Smart Array E200" }, 306 { 0x103C, 0x3213, CISS_BOARD_SA5, "HP Smart Array E200i" }, 307 { 0x103C, 0x3214, CISS_BOARD_SA5, "HP Smart Array E200i" }, 308 { 0x103C, 0x3215, CISS_BOARD_SA5, "HP Smart Array E200i" }, 309 { 0x103C, 0x3220, CISS_BOARD_SA5, "HP Smart Array" }, 310 { 0x103C, 0x3222, CISS_BOARD_SA5, "HP Smart Array" }, 311 { 0x103C, 0x3223, CISS_BOARD_SA5, "HP Smart Array P800" }, 312 { 0x103C, 0x3225, CISS_BOARD_SA5, "HP Smart Array P600" }, 313 { 0x103C, 0x3230, CISS_BOARD_SA5, "HP Smart Array" }, 314 { 0x103C, 0x3231, CISS_BOARD_SA5, "HP Smart Array" }, 315 { 0x103C, 0x3232, CISS_BOARD_SA5, "HP Smart Array" }, 316 { 0x103C, 0x3233, CISS_BOARD_SA5, "HP Smart Array" }, 317 { 0x103C, 0x3234, CISS_BOARD_SA5, "HP Smart Array P400" }, 318 { 0x103C, 0x3235, CISS_BOARD_SA5, "HP Smart Array P400i" }, 319 { 0x103C, 0x3236, CISS_BOARD_SA5, "HP Smart Array" }, 320 { 0x103C, 0x3237, CISS_BOARD_SA5, "HP Smart Array E500" }, 321 { 0x103C, 0x3238, CISS_BOARD_SA5, "HP Smart Array" }, 322 { 0x103C, 0x3239, CISS_BOARD_SA5, "HP Smart Array" }, 323 { 0x103C, 0x323A, CISS_BOARD_SA5, "HP Smart Array" }, 324 { 0x103C, 0x323B, CISS_BOARD_SA5, "HP Smart Array" }, 325 { 0x103C, 0x323C, CISS_BOARD_SA5, "HP Smart Array" }, 326 { 0x103C, 0x323D, CISS_BOARD_SA5, "HP Smart Array P700m" }, 327 { 0x103C, 0x3241, CISS_BOARD_SA5, "HP Smart Array P212" }, 328 { 0x103C, 0x3243, CISS_BOARD_SA5, "HP Smart Array P410" }, 329 { 0x103C, 0x3245, CISS_BOARD_SA5, "HP Smart Array P410i" }, 330 { 0x103C, 0x3247, CISS_BOARD_SA5, "HP Smart Array P411" }, 331 { 0x103C, 0x3249, CISS_BOARD_SA5, "HP Smart Array P812" }, 332 { 0x103C, 0x324A, CISS_BOARD_SA5, "HP Smart Array P712m" }, 333 { 0x103C, 0x324B, CISS_BOARD_SA5, "HP Smart Array" }, 334 { 0x103C, 0x3350, CISS_BOARD_SA5, "HP Smart Array P222" }, 335 { 0x103C, 0x3351, CISS_BOARD_SA5, "HP Smart Array P420" }, 336 { 0x103C, 0x3352, CISS_BOARD_SA5, "HP Smart Array P421" }, 337 { 0x103C, 0x3353, CISS_BOARD_SA5, "HP Smart Array P822" }, 338 { 0x103C, 0x3354, CISS_BOARD_SA5, "HP Smart Array P420i" }, 339 { 0x103C, 0x3355, CISS_BOARD_SA5, "HP Smart Array P220i" }, 340 { 0x103C, 0x3356, CISS_BOARD_SA5, "HP Smart Array P721m" }, 341 { 0x103C, 0x1920, CISS_BOARD_SA5, "HP Smart Array P430i" }, 342 { 0x103C, 0x1921, CISS_BOARD_SA5, "HP Smart Array P830i" }, 343 { 0x103C, 0x1922, CISS_BOARD_SA5, "HP Smart Array P430" }, 344 { 0x103C, 0x1923, CISS_BOARD_SA5, "HP Smart Array P431" }, 345 { 0x103C, 0x1924, CISS_BOARD_SA5, "HP Smart Array P830" }, 346 { 0x103C, 0x1926, CISS_BOARD_SA5, "HP Smart Array P731m" }, 347 { 0x103C, 0x1928, CISS_BOARD_SA5, "HP Smart Array P230i" }, 348 { 0x103C, 0x1929, CISS_BOARD_SA5, "HP Smart Array P530" }, 349 { 0x103C, 0x192A, CISS_BOARD_SA5, "HP Smart Array P531" }, 350 { 0x103C, 0x21BD, CISS_BOARD_SA5, "HP Smart Array P244br" }, 351 { 0x103C, 0x21BE, CISS_BOARD_SA5, "HP Smart Array P741m" }, 352 { 0x103C, 0x21BF, CISS_BOARD_SA5, "HP Smart Array H240ar" }, 353 { 0x103C, 0x21C0, CISS_BOARD_SA5, "HP Smart Array P440ar" }, 354 { 0x103C, 0x21C1, CISS_BOARD_SA5, "HP Smart Array P840ar" }, 355 { 0x103C, 0x21C2, CISS_BOARD_SA5, "HP Smart Array P440" }, 356 { 0x103C, 0x21C3, CISS_BOARD_SA5, "HP Smart Array P441" }, 357 { 0x103C, 0x21C5, CISS_BOARD_SA5, "HP Smart Array P841" }, 358 { 0x103C, 0x21C6, CISS_BOARD_SA5, "HP Smart Array H244br" }, 359 { 0x103C, 0x21C7, CISS_BOARD_SA5, "HP Smart Array H240" }, 360 { 0x103C, 0x21C8, CISS_BOARD_SA5, "HP Smart Array H241" }, 361 { 0x103C, 0x21CA, CISS_BOARD_SA5, "HP Smart Array P246br" }, 362 { 0x103C, 0x21CB, CISS_BOARD_SA5, "HP Smart Array P840" }, 363 { 0x103C, 0x21CC, CISS_BOARD_SA5, "HP Smart Array TBD" }, 364 { 0x103C, 0x21CD, CISS_BOARD_SA5, "HP Smart Array P240nr" }, 365 { 0x103C, 0x21CE, CISS_BOARD_SA5, "HP Smart Array H240nr" }, 366 { 0, 0, 0, NULL } 367 }; 368 369 /************************************************************************ 370 * Find a match for the device in our list of known adapters. 371 */ 372 static int 373 ciss_lookup(device_t dev) 374 { 375 int i; 376 377 for (i = 0; ciss_vendor_data[i].desc != NULL; i++) 378 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) && 379 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) { 380 return(i); 381 } 382 return(-1); 383 } 384 385 /************************************************************************ 386 * Match a known CISS adapter. 387 */ 388 static int 389 ciss_probe(device_t dev) 390 { 391 int i; 392 393 i = ciss_lookup(dev); 394 if (i != -1) { 395 device_set_desc(dev, ciss_vendor_data[i].desc); 396 return(BUS_PROBE_DEFAULT); 397 } 398 return(ENOENT); 399 } 400 401 /************************************************************************ 402 * Attach the driver to this adapter. 403 */ 404 static int 405 ciss_attach(device_t dev) 406 { 407 struct ciss_softc *sc; 408 int error; 409 410 debug_called(1); 411 412 #ifdef CISS_DEBUG 413 /* print structure/union sizes */ 414 debug_struct(ciss_command); 415 debug_struct(ciss_header); 416 debug_union(ciss_device_address); 417 debug_struct(ciss_cdb); 418 debug_struct(ciss_report_cdb); 419 debug_struct(ciss_notify_cdb); 420 debug_struct(ciss_notify); 421 debug_struct(ciss_message_cdb); 422 debug_struct(ciss_error_info_pointer); 423 debug_struct(ciss_error_info); 424 debug_struct(ciss_sg_entry); 425 debug_struct(ciss_config_table); 426 debug_struct(ciss_bmic_cdb); 427 debug_struct(ciss_bmic_id_ldrive); 428 debug_struct(ciss_bmic_id_lstatus); 429 debug_struct(ciss_bmic_id_table); 430 debug_struct(ciss_bmic_id_pdrive); 431 debug_struct(ciss_bmic_blink_pdrive); 432 debug_struct(ciss_bmic_flush_cache); 433 debug_const(CISS_MAX_REQUESTS); 434 debug_const(CISS_MAX_LOGICAL); 435 debug_const(CISS_INTERRUPT_COALESCE_DELAY); 436 debug_const(CISS_INTERRUPT_COALESCE_COUNT); 437 debug_const(CISS_COMMAND_ALLOC_SIZE); 438 debug_const(CISS_COMMAND_SG_LENGTH); 439 440 debug_type(cciss_pci_info_struct); 441 debug_type(cciss_coalint_struct); 442 debug_type(cciss_coalint_struct); 443 debug_type(NodeName_type); 444 debug_type(NodeName_type); 445 debug_type(Heartbeat_type); 446 debug_type(BusTypes_type); 447 debug_type(FirmwareVer_type); 448 debug_type(DriverVer_type); 449 debug_type(IOCTL_Command_struct); 450 #endif 451 452 sc = device_get_softc(dev); 453 sc->ciss_dev = dev; 454 mtx_init(&sc->ciss_mtx, "cissmtx", NULL, MTX_DEF); 455 callout_init_mtx(&sc->ciss_periodic, &sc->ciss_mtx, 0); 456 457 /* 458 * Do PCI-specific init. 459 */ 460 if ((error = ciss_init_pci(sc)) != 0) 461 goto out; 462 463 /* 464 * Initialise driver queues. 465 */ 466 ciss_initq_free(sc); 467 ciss_initq_notify(sc); 468 469 /* 470 * Initialize device sysctls. 471 */ 472 ciss_init_sysctl(sc); 473 474 /* 475 * Initialise command/request pool. 476 */ 477 if ((error = ciss_init_requests(sc)) != 0) 478 goto out; 479 480 /* 481 * Get adapter information. 482 */ 483 if ((error = ciss_identify_adapter(sc)) != 0) 484 goto out; 485 486 /* 487 * Find all the physical devices. 488 */ 489 if ((error = ciss_init_physical(sc)) != 0) 490 goto out; 491 492 /* 493 * Build our private table of logical devices. 494 */ 495 if ((error = ciss_init_logical(sc)) != 0) 496 goto out; 497 498 /* 499 * Enable interrupts so that the CAM scan can complete. 500 */ 501 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc); 502 503 /* 504 * Initialise the CAM interface. 505 */ 506 if ((error = ciss_cam_init(sc)) != 0) 507 goto out; 508 509 /* 510 * Start the heartbeat routine and event chain. 511 */ 512 ciss_periodic(sc); 513 514 /* 515 * Create the control device. 516 */ 517 sc->ciss_dev_t = make_dev(&ciss_cdevsw, device_get_unit(sc->ciss_dev), 518 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR, 519 "ciss%d", device_get_unit(sc->ciss_dev)); 520 sc->ciss_dev_t->si_drv1 = sc; 521 522 /* 523 * The adapter is running; synchronous commands can now sleep 524 * waiting for an interrupt to signal completion. 525 */ 526 sc->ciss_flags |= CISS_FLAG_RUNNING; 527 528 ciss_spawn_notify_thread(sc); 529 530 error = 0; 531 out: 532 if (error != 0) { 533 /* ciss_free() expects the mutex to be held */ 534 mtx_lock(&sc->ciss_mtx); 535 ciss_free(sc); 536 } 537 return(error); 538 } 539 540 /************************************************************************ 541 * Detach the driver from this adapter. 542 */ 543 static int 544 ciss_detach(device_t dev) 545 { 546 struct ciss_softc *sc = device_get_softc(dev); 547 548 debug_called(1); 549 550 mtx_lock(&sc->ciss_mtx); 551 if (sc->ciss_flags & CISS_FLAG_CONTROL_OPEN) { 552 mtx_unlock(&sc->ciss_mtx); 553 return (EBUSY); 554 } 555 556 /* flush adapter cache */ 557 ciss_flush_adapter(sc); 558 559 /* release all resources. The mutex is released and freed here too. */ 560 ciss_free(sc); 561 562 return(0); 563 } 564 565 /************************************************************************ 566 * Prepare adapter for system shutdown. 567 */ 568 static int 569 ciss_shutdown(device_t dev) 570 { 571 struct ciss_softc *sc = device_get_softc(dev); 572 573 debug_called(1); 574 575 mtx_lock(&sc->ciss_mtx); 576 /* flush adapter cache */ 577 ciss_flush_adapter(sc); 578 579 if (sc->ciss_soft_reset) 580 ciss_soft_reset(sc); 581 mtx_unlock(&sc->ciss_mtx); 582 583 return(0); 584 } 585 586 static void 587 ciss_init_sysctl(struct ciss_softc *sc) 588 { 589 590 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->ciss_dev), 591 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ciss_dev)), 592 OID_AUTO, "soft_reset", CTLFLAG_RW, &sc->ciss_soft_reset, 0, ""); 593 } 594 595 /************************************************************************ 596 * Perform PCI-specific attachment actions. 597 */ 598 static int 599 ciss_init_pci(struct ciss_softc *sc) 600 { 601 uintptr_t cbase, csize, cofs; 602 uint32_t method, supported_methods; 603 int error, sqmask, i; 604 void *intr; 605 606 debug_called(1); 607 608 /* 609 * Work out adapter type. 610 */ 611 i = ciss_lookup(sc->ciss_dev); 612 if (i < 0) { 613 ciss_printf(sc, "unknown adapter type\n"); 614 return (ENXIO); 615 } 616 617 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) { 618 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5; 619 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) { 620 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5B; 621 } else { 622 /* 623 * XXX Big hammer, masks/unmasks all possible interrupts. This should 624 * work on all hardware variants. Need to add code to handle the 625 * "controller crashed" interrupt bit that this unmasks. 626 */ 627 sqmask = ~0; 628 } 629 630 /* 631 * Allocate register window first (we need this to find the config 632 * struct). 633 */ 634 error = ENXIO; 635 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS; 636 if ((sc->ciss_regs_resource = 637 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 638 &sc->ciss_regs_rid, RF_ACTIVE)) == NULL) { 639 ciss_printf(sc, "can't allocate register window\n"); 640 return(ENXIO); 641 } 642 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource); 643 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource); 644 645 /* 646 * Find the BAR holding the config structure. If it's not the one 647 * we already mapped for registers, map it too. 648 */ 649 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff; 650 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) { 651 if ((sc->ciss_cfg_resource = 652 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 653 &sc->ciss_cfg_rid, RF_ACTIVE)) == NULL) { 654 ciss_printf(sc, "can't allocate config window\n"); 655 return(ENXIO); 656 } 657 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource); 658 csize = rman_get_end(sc->ciss_cfg_resource) - 659 rman_get_start(sc->ciss_cfg_resource) + 1; 660 } else { 661 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource); 662 csize = rman_get_end(sc->ciss_regs_resource) - 663 rman_get_start(sc->ciss_regs_resource) + 1; 664 } 665 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF); 666 667 /* 668 * Use the base/size/offset values we just calculated to 669 * sanity-check the config structure. If it's OK, point to it. 670 */ 671 if ((cofs + sizeof(struct ciss_config_table)) > csize) { 672 ciss_printf(sc, "config table outside window\n"); 673 return(ENXIO); 674 } 675 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs); 676 debug(1, "config struct at %p", sc->ciss_cfg); 677 678 /* 679 * Calculate the number of request structures/commands we are 680 * going to provide for this adapter. 681 */ 682 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands); 683 684 /* 685 * Validate the config structure. If we supported other transport 686 * methods, we could select amongst them at this point in time. 687 */ 688 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) { 689 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n", 690 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1], 691 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]); 692 return(ENXIO); 693 } 694 695 /* 696 * Select the mode of operation, prefer Performant. 697 */ 698 if (!(sc->ciss_cfg->supported_methods & 699 (CISS_TRANSPORT_METHOD_SIMPLE | CISS_TRANSPORT_METHOD_PERF))) { 700 ciss_printf(sc, "No supported transport layers: 0x%x\n", 701 sc->ciss_cfg->supported_methods); 702 } 703 704 switch (ciss_force_transport) { 705 case 1: 706 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE; 707 break; 708 case 2: 709 supported_methods = CISS_TRANSPORT_METHOD_PERF; 710 break; 711 default: 712 /* 713 * Override the capabilities of the BOARD and specify SIMPLE 714 * MODE 715 */ 716 if (ciss_vendor_data[i].flags & CISS_BOARD_SIMPLE) 717 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE; 718 else 719 supported_methods = sc->ciss_cfg->supported_methods; 720 break; 721 } 722 723 setup: 724 if ((supported_methods & CISS_TRANSPORT_METHOD_PERF) != 0) { 725 method = CISS_TRANSPORT_METHOD_PERF; 726 sc->ciss_perf = (struct ciss_perf_config *)(cbase + cofs + 727 sc->ciss_cfg->transport_offset); 728 if (ciss_init_perf(sc)) { 729 supported_methods &= ~method; 730 goto setup; 731 } 732 } else if (supported_methods & CISS_TRANSPORT_METHOD_SIMPLE) { 733 method = CISS_TRANSPORT_METHOD_SIMPLE; 734 } else { 735 ciss_printf(sc, "No supported transport methods: 0x%x\n", 736 sc->ciss_cfg->supported_methods); 737 return(ENXIO); 738 } 739 740 /* 741 * Tell it we're using the low 4GB of RAM. Set the default interrupt 742 * coalescing options. 743 */ 744 sc->ciss_cfg->requested_method = method; 745 sc->ciss_cfg->command_physlimit = 0; 746 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY; 747 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT; 748 749 #ifdef __i386__ 750 sc->ciss_cfg->host_driver |= CISS_DRIVER_SCSI_PREFETCH; 751 #endif 752 753 if (ciss_update_config(sc)) { 754 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n", 755 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR)); 756 return(ENXIO); 757 } 758 if ((sc->ciss_cfg->active_method & method) == 0) { 759 supported_methods &= ~method; 760 if (supported_methods == 0) { 761 ciss_printf(sc, "adapter refuses to go into available transports " 762 "mode (0x%x, 0x%x)\n", supported_methods, 763 sc->ciss_cfg->active_method); 764 return(ENXIO); 765 } else 766 goto setup; 767 } 768 769 /* 770 * Wait for the adapter to come ready. 771 */ 772 if ((error = ciss_wait_adapter(sc)) != 0) 773 return(error); 774 775 /* Prepare to possibly use MSIX and/or PERFORMANT interrupts. Normal 776 * interrupts have a rid of 0, this will be overridden if MSIX is used. 777 */ 778 sc->ciss_irq_rid[0] = 0; 779 if (method == CISS_TRANSPORT_METHOD_PERF) { 780 ciss_printf(sc, "PERFORMANT Transport\n"); 781 if ((ciss_force_interrupt != 1) && (ciss_setup_msix(sc) == 0)) { 782 intr = ciss_perf_msi_intr; 783 } else { 784 intr = ciss_perf_intr; 785 } 786 /* XXX The docs say that the 0x01 bit is only for SAS controllers. 787 * Unfortunately, there is no good way to know if this is a SAS 788 * controller. Hopefully enabling this bit universally will work OK. 789 * It seems to work fine for SA6i controllers. 790 */ 791 sc->ciss_interrupt_mask = CISS_TL_PERF_INTR_OPQ | CISS_TL_PERF_INTR_MSI; 792 793 } else { 794 ciss_printf(sc, "SIMPLE Transport\n"); 795 /* MSIX doesn't seem to work in SIMPLE mode, only enable if it forced */ 796 if (ciss_force_interrupt == 2) 797 /* If this fails, we automatically revert to INTx */ 798 ciss_setup_msix(sc); 799 sc->ciss_perf = NULL; 800 intr = ciss_intr; 801 sc->ciss_interrupt_mask = sqmask; 802 } 803 804 /* 805 * Turn off interrupts before we go routing anything. 806 */ 807 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 808 809 /* 810 * Allocate and set up our interrupt. 811 */ 812 if ((sc->ciss_irq_resource = 813 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid[0], 814 RF_ACTIVE | RF_SHAREABLE)) == NULL) { 815 ciss_printf(sc, "can't allocate interrupt\n"); 816 return(ENXIO); 817 } 818 819 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource, 820 INTR_TYPE_CAM|INTR_MPSAFE, NULL, intr, sc, 821 &sc->ciss_intr)) { 822 ciss_printf(sc, "can't set up interrupt\n"); 823 return(ENXIO); 824 } 825 826 /* 827 * Allocate the parent bus DMA tag appropriate for our PCI 828 * interface. 829 * 830 * Note that "simple" adapters can only address within a 32-bit 831 * span. 832 */ 833 if (bus_dma_tag_create(bus_get_dma_tag(sc->ciss_dev),/* PCI parent */ 834 1, 0, /* alignment, boundary */ 835 BUS_SPACE_MAXADDR, /* lowaddr */ 836 BUS_SPACE_MAXADDR, /* highaddr */ 837 NULL, NULL, /* filter, filterarg */ 838 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 839 BUS_SPACE_UNRESTRICTED, /* nsegments */ 840 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 841 0, /* flags */ 842 NULL, NULL, /* lockfunc, lockarg */ 843 &sc->ciss_parent_dmat)) { 844 ciss_printf(sc, "can't allocate parent DMA tag\n"); 845 return(ENOMEM); 846 } 847 848 /* 849 * Create DMA tag for mapping buffers into adapter-addressable 850 * space. 851 */ 852 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 853 1, 0, /* alignment, boundary */ 854 BUS_SPACE_MAXADDR, /* lowaddr */ 855 BUS_SPACE_MAXADDR, /* highaddr */ 856 NULL, NULL, /* filter, filterarg */ 857 (CISS_MAX_SG_ELEMENTS - 1) * PAGE_SIZE, /* maxsize */ 858 CISS_MAX_SG_ELEMENTS, /* nsegments */ 859 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 860 BUS_DMA_ALLOCNOW, /* flags */ 861 busdma_lock_mutex, &sc->ciss_mtx, /* lockfunc, lockarg */ 862 &sc->ciss_buffer_dmat)) { 863 ciss_printf(sc, "can't allocate buffer DMA tag\n"); 864 return(ENOMEM); 865 } 866 return(0); 867 } 868 869 /************************************************************************ 870 * Setup MSI/MSIX operation (Performant only) 871 * Four interrupts are available, but we only use 1 right now. If MSI-X 872 * isn't avaialble, try using MSI instead. 873 */ 874 static int 875 ciss_setup_msix(struct ciss_softc *sc) 876 { 877 int val, i; 878 879 /* Weed out devices that don't actually support MSI */ 880 i = ciss_lookup(sc->ciss_dev); 881 if (ciss_vendor_data[i].flags & CISS_BOARD_NOMSI) 882 return (EINVAL); 883 884 /* 885 * Only need to use the minimum number of MSI vectors, as the driver 886 * doesn't support directed MSIX interrupts. 887 */ 888 val = pci_msix_count(sc->ciss_dev); 889 if (val < CISS_MSI_COUNT) { 890 val = pci_msi_count(sc->ciss_dev); 891 device_printf(sc->ciss_dev, "got %d MSI messages]\n", val); 892 if (val < CISS_MSI_COUNT) 893 return (EINVAL); 894 } 895 val = MIN(val, CISS_MSI_COUNT); 896 if (pci_alloc_msix(sc->ciss_dev, &val) != 0) { 897 if (pci_alloc_msi(sc->ciss_dev, &val) != 0) 898 return (EINVAL); 899 } 900 901 sc->ciss_msi = val; 902 if (bootverbose) 903 ciss_printf(sc, "Using %d MSIX interrupt%s\n", val, 904 (val != 1) ? "s" : ""); 905 906 for (i = 0; i < val; i++) 907 sc->ciss_irq_rid[i] = i + 1; 908 909 return (0); 910 911 } 912 913 /************************************************************************ 914 * Setup the Performant structures. 915 */ 916 static int 917 ciss_init_perf(struct ciss_softc *sc) 918 { 919 struct ciss_perf_config *pc = sc->ciss_perf; 920 int reply_size; 921 922 /* 923 * Create the DMA tag for the reply queue. 924 */ 925 reply_size = sizeof(uint64_t) * sc->ciss_max_requests; 926 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 927 1, 0, /* alignment, boundary */ 928 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 929 BUS_SPACE_MAXADDR, /* highaddr */ 930 NULL, NULL, /* filter, filterarg */ 931 reply_size, 1, /* maxsize, nsegments */ 932 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 933 0, /* flags */ 934 NULL, NULL, /* lockfunc, lockarg */ 935 &sc->ciss_reply_dmat)) { 936 ciss_printf(sc, "can't allocate reply DMA tag\n"); 937 return(ENOMEM); 938 } 939 /* 940 * Allocate memory and make it available for DMA. 941 */ 942 if (bus_dmamem_alloc(sc->ciss_reply_dmat, (void **)&sc->ciss_reply, 943 BUS_DMA_NOWAIT, &sc->ciss_reply_map)) { 944 ciss_printf(sc, "can't allocate reply memory\n"); 945 return(ENOMEM); 946 } 947 bus_dmamap_load(sc->ciss_reply_dmat, sc->ciss_reply_map, sc->ciss_reply, 948 reply_size, ciss_command_map_helper, &sc->ciss_reply_phys, 0); 949 bzero(sc->ciss_reply, reply_size); 950 951 sc->ciss_cycle = 0x1; 952 sc->ciss_rqidx = 0; 953 954 /* 955 * Preload the fetch table with common command sizes. This allows the 956 * hardware to not waste bus cycles for typical i/o commands, but also not 957 * tax the driver to be too exact in choosing sizes. The table is optimized 958 * for page-aligned i/o's, but since most i/o comes from the various pagers, 959 * it's a reasonable assumption to make. 960 */ 961 pc->fetch_count[CISS_SG_FETCH_NONE] = (sizeof(struct ciss_command) + 15) / 16; 962 pc->fetch_count[CISS_SG_FETCH_1] = 963 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 1 + 15) / 16; 964 pc->fetch_count[CISS_SG_FETCH_2] = 965 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 2 + 15) / 16; 966 pc->fetch_count[CISS_SG_FETCH_4] = 967 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 4 + 15) / 16; 968 pc->fetch_count[CISS_SG_FETCH_8] = 969 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 8 + 15) / 16; 970 pc->fetch_count[CISS_SG_FETCH_16] = 971 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 16 + 15) / 16; 972 pc->fetch_count[CISS_SG_FETCH_32] = 973 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 32 + 15) / 16; 974 pc->fetch_count[CISS_SG_FETCH_MAX] = (CISS_COMMAND_ALLOC_SIZE + 15) / 16; 975 976 pc->rq_size = sc->ciss_max_requests; /* XXX less than the card supports? */ 977 pc->rq_count = 1; /* XXX Hardcode for a single queue */ 978 pc->rq_bank_hi = 0; 979 pc->rq_bank_lo = 0; 980 pc->rq[0].rq_addr_hi = 0x0; 981 pc->rq[0].rq_addr_lo = sc->ciss_reply_phys; 982 983 return(0); 984 } 985 986 /************************************************************************ 987 * Wait for the adapter to come ready. 988 */ 989 static int 990 ciss_wait_adapter(struct ciss_softc *sc) 991 { 992 int i; 993 994 debug_called(1); 995 996 /* 997 * Wait for the adapter to come ready. 998 */ 999 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) { 1000 ciss_printf(sc, "waiting for adapter to come ready...\n"); 1001 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) { 1002 DELAY(1000000); /* one second */ 1003 if (i > 30) { 1004 ciss_printf(sc, "timed out waiting for adapter to come ready\n"); 1005 return(EIO); 1006 } 1007 } 1008 } 1009 return(0); 1010 } 1011 1012 /************************************************************************ 1013 * Flush the adapter cache. 1014 */ 1015 static int 1016 ciss_flush_adapter(struct ciss_softc *sc) 1017 { 1018 struct ciss_request *cr; 1019 struct ciss_bmic_flush_cache *cbfc; 1020 int error, command_status; 1021 1022 debug_called(1); 1023 1024 cr = NULL; 1025 cbfc = NULL; 1026 1027 /* 1028 * Build a BMIC request to flush the cache. We don't disable 1029 * it, as we may be going to do more I/O (eg. we are emulating 1030 * the Synchronise Cache command). 1031 */ 1032 if ((cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 1033 error = ENOMEM; 1034 goto out; 1035 } 1036 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE, 1037 (void **)&cbfc, sizeof(*cbfc))) != 0) 1038 goto out; 1039 1040 /* 1041 * Submit the request and wait for it to complete. 1042 */ 1043 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1044 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error); 1045 goto out; 1046 } 1047 1048 /* 1049 * Check response. 1050 */ 1051 ciss_report_request(cr, &command_status, NULL); 1052 switch(command_status) { 1053 case CISS_CMD_STATUS_SUCCESS: 1054 break; 1055 default: 1056 ciss_printf(sc, "error flushing cache (%s)\n", 1057 ciss_name_command_status(command_status)); 1058 error = EIO; 1059 goto out; 1060 } 1061 1062 out: 1063 if (cbfc != NULL) 1064 free(cbfc, CISS_MALLOC_CLASS); 1065 if (cr != NULL) 1066 ciss_release_request(cr); 1067 return(error); 1068 } 1069 1070 static void 1071 ciss_soft_reset(struct ciss_softc *sc) 1072 { 1073 struct ciss_request *cr = NULL; 1074 struct ciss_command *cc; 1075 int i, error = 0; 1076 1077 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1078 /* only reset proxy controllers */ 1079 if (sc->ciss_controllers[i].physical.bus == 0) 1080 continue; 1081 1082 if ((error = ciss_get_request(sc, &cr)) != 0) 1083 break; 1084 1085 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_SOFT_RESET, 1086 NULL, 0)) != 0) 1087 break; 1088 1089 cc = cr->cr_cc; 1090 cc->header.address = sc->ciss_controllers[i]; 1091 1092 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) 1093 break; 1094 1095 ciss_release_request(cr); 1096 } 1097 1098 if (error) 1099 ciss_printf(sc, "error resetting controller (%d)\n", error); 1100 1101 if (cr != NULL) 1102 ciss_release_request(cr); 1103 } 1104 1105 /************************************************************************ 1106 * Allocate memory for the adapter command structures, initialise 1107 * the request structures. 1108 * 1109 * Note that the entire set of commands are allocated in a single 1110 * contiguous slab. 1111 */ 1112 static int 1113 ciss_init_requests(struct ciss_softc *sc) 1114 { 1115 struct ciss_request *cr; 1116 int i; 1117 1118 debug_called(1); 1119 1120 if (bootverbose) 1121 ciss_printf(sc, "using %d of %d available commands\n", 1122 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands); 1123 1124 /* 1125 * Create the DMA tag for commands. 1126 */ 1127 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 1128 32, 0, /* alignment, boundary */ 1129 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 1130 BUS_SPACE_MAXADDR, /* highaddr */ 1131 NULL, NULL, /* filter, filterarg */ 1132 CISS_COMMAND_ALLOC_SIZE * 1133 sc->ciss_max_requests, 1, /* maxsize, nsegments */ 1134 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 1135 0, /* flags */ 1136 NULL, NULL, /* lockfunc, lockarg */ 1137 &sc->ciss_command_dmat)) { 1138 ciss_printf(sc, "can't allocate command DMA tag\n"); 1139 return(ENOMEM); 1140 } 1141 /* 1142 * Allocate memory and make it available for DMA. 1143 */ 1144 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command, 1145 BUS_DMA_NOWAIT, &sc->ciss_command_map)) { 1146 ciss_printf(sc, "can't allocate command memory\n"); 1147 return(ENOMEM); 1148 } 1149 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map,sc->ciss_command, 1150 CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests, 1151 ciss_command_map_helper, &sc->ciss_command_phys, 0); 1152 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests); 1153 1154 /* 1155 * Set up the request and command structures, push requests onto 1156 * the free queue. 1157 */ 1158 for (i = 1; i < sc->ciss_max_requests; i++) { 1159 cr = &sc->ciss_request[i]; 1160 cr->cr_sc = sc; 1161 cr->cr_tag = i; 1162 cr->cr_cc = (struct ciss_command *)((uintptr_t)sc->ciss_command + 1163 CISS_COMMAND_ALLOC_SIZE * i); 1164 cr->cr_ccphys = sc->ciss_command_phys + CISS_COMMAND_ALLOC_SIZE * i; 1165 bus_dmamap_create(sc->ciss_buffer_dmat, 0, &cr->cr_datamap); 1166 ciss_enqueue_free(cr); 1167 } 1168 return(0); 1169 } 1170 1171 static void 1172 ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1173 { 1174 uint32_t *addr; 1175 1176 addr = arg; 1177 *addr = segs[0].ds_addr; 1178 } 1179 1180 /************************************************************************ 1181 * Identify the adapter, print some information about it. 1182 */ 1183 static int 1184 ciss_identify_adapter(struct ciss_softc *sc) 1185 { 1186 struct ciss_request *cr; 1187 int error, command_status; 1188 1189 debug_called(1); 1190 1191 cr = NULL; 1192 1193 /* 1194 * Get a request, allocate storage for the adapter data. 1195 */ 1196 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR, 1197 (void **)&sc->ciss_id, 1198 sizeof(*sc->ciss_id))) != 0) 1199 goto out; 1200 1201 /* 1202 * Submit the request and wait for it to complete. 1203 */ 1204 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1205 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error); 1206 goto out; 1207 } 1208 1209 /* 1210 * Check response. 1211 */ 1212 ciss_report_request(cr, &command_status, NULL); 1213 switch(command_status) { 1214 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1215 break; 1216 case CISS_CMD_STATUS_DATA_UNDERRUN: 1217 case CISS_CMD_STATUS_DATA_OVERRUN: 1218 ciss_printf(sc, "data over/underrun reading adapter information\n"); 1219 default: 1220 ciss_printf(sc, "error reading adapter information (%s)\n", 1221 ciss_name_command_status(command_status)); 1222 error = EIO; 1223 goto out; 1224 } 1225 1226 /* sanity-check reply */ 1227 if (!(sc->ciss_id->controller_flags & CONTROLLER_FLAGS_BIG_MAP_SUPPORT)) { 1228 ciss_printf(sc, "adapter does not support BIG_MAP\n"); 1229 error = ENXIO; 1230 goto out; 1231 } 1232 1233 #if 0 1234 /* XXX later revisions may not need this */ 1235 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH; 1236 #endif 1237 1238 /* XXX only really required for old 5300 adapters? */ 1239 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT; 1240 1241 /* 1242 * Earlier controller specs do not contain these config 1243 * entries, so assume that a 0 means its old and assign 1244 * these values to the defaults that were established 1245 * when this driver was developed for them 1246 */ 1247 if (sc->ciss_cfg->max_logical_supported == 0) 1248 sc->ciss_cfg->max_logical_supported = CISS_MAX_LOGICAL; 1249 if (sc->ciss_cfg->max_physical_supported == 0) 1250 sc->ciss_cfg->max_physical_supported = CISS_MAX_PHYSICAL; 1251 /* print information */ 1252 if (bootverbose) { 1253 ciss_printf(sc, " %d logical drive%s configured\n", 1254 sc->ciss_id->configured_logical_drives, 1255 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s"); 1256 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision); 1257 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_chip_count); 1258 1259 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature); 1260 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence); 1261 ciss_printf(sc, " supported I/O methods 0x%b\n", 1262 sc->ciss_cfg->supported_methods, 1263 "\20\1READY\2simple\3performant\4MEMQ\n"); 1264 ciss_printf(sc, " active I/O method 0x%b\n", 1265 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n"); 1266 ciss_printf(sc, " 4G page base 0x%08x\n", 1267 sc->ciss_cfg->command_physlimit); 1268 ciss_printf(sc, " interrupt coalesce delay %dus\n", 1269 sc->ciss_cfg->interrupt_coalesce_delay); 1270 ciss_printf(sc, " interrupt coalesce count %d\n", 1271 sc->ciss_cfg->interrupt_coalesce_count); 1272 ciss_printf(sc, " max outstanding commands %d\n", 1273 sc->ciss_cfg->max_outstanding_commands); 1274 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types, 1275 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n"); 1276 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name); 1277 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat); 1278 ciss_printf(sc, " max logical logical volumes: %d\n", sc->ciss_cfg->max_logical_supported); 1279 ciss_printf(sc, " max physical disks supported: %d\n", sc->ciss_cfg->max_physical_supported); 1280 ciss_printf(sc, " max physical disks per logical volume: %d\n", sc->ciss_cfg->max_physical_per_logical); 1281 ciss_printf(sc, " JBOD Support is %s\n", (sc->ciss_id->uiYetMoreControllerFlags & YMORE_CONTROLLER_FLAGS_JBOD_SUPPORTED) ? 1282 "Available" : "Unavailable"); 1283 ciss_printf(sc, " JBOD Mode is %s\n", (sc->ciss_id->PowerUPNvramFlags & PWR_UP_FLAG_JBOD_ENABLED) ? 1284 "Enabled" : "Disabled"); 1285 } 1286 1287 out: 1288 if (error) { 1289 if (sc->ciss_id != NULL) { 1290 free(sc->ciss_id, CISS_MALLOC_CLASS); 1291 sc->ciss_id = NULL; 1292 } 1293 } 1294 if (cr != NULL) 1295 ciss_release_request(cr); 1296 return(error); 1297 } 1298 1299 /************************************************************************ 1300 * Helper routine for generating a list of logical and physical luns. 1301 */ 1302 static struct ciss_lun_report * 1303 ciss_report_luns(struct ciss_softc *sc, int opcode, int nunits) 1304 { 1305 struct ciss_request *cr; 1306 struct ciss_command *cc; 1307 struct ciss_report_cdb *crc; 1308 struct ciss_lun_report *cll; 1309 int command_status; 1310 int report_size; 1311 int error = 0; 1312 1313 debug_called(1); 1314 1315 cr = NULL; 1316 cll = NULL; 1317 1318 /* 1319 * Get a request, allocate storage for the address list. 1320 */ 1321 if ((error = ciss_get_request(sc, &cr)) != 0) 1322 goto out; 1323 report_size = sizeof(*cll) + nunits * sizeof(union ciss_device_address); 1324 if ((cll = malloc(report_size, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 1325 ciss_printf(sc, "can't allocate memory for lun report\n"); 1326 error = ENOMEM; 1327 goto out; 1328 } 1329 1330 /* 1331 * Build the Report Logical/Physical LUNs command. 1332 */ 1333 cc = cr->cr_cc; 1334 cr->cr_data = cll; 1335 cr->cr_length = report_size; 1336 cr->cr_flags = CISS_REQ_DATAIN; 1337 1338 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 1339 cc->header.address.physical.bus = 0; 1340 cc->header.address.physical.target = 0; 1341 cc->cdb.cdb_length = sizeof(*crc); 1342 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1343 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1344 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1345 cc->cdb.timeout = 30; /* XXX better suggestions? */ 1346 1347 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]); 1348 bzero(crc, sizeof(*crc)); 1349 crc->opcode = opcode; 1350 crc->length = htonl(report_size); /* big-endian field */ 1351 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */ 1352 1353 /* 1354 * Submit the request and wait for it to complete. (timeout 1355 * here should be much greater than above) 1356 */ 1357 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1358 ciss_printf(sc, "error sending %d LUN command (%d)\n", opcode, error); 1359 goto out; 1360 } 1361 1362 /* 1363 * Check response. Note that data over/underrun is OK. 1364 */ 1365 ciss_report_request(cr, &command_status, NULL); 1366 switch(command_status) { 1367 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1368 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */ 1369 break; 1370 case CISS_CMD_STATUS_DATA_OVERRUN: 1371 ciss_printf(sc, "WARNING: more units than driver limit (%d)\n", 1372 sc->ciss_cfg->max_logical_supported); 1373 break; 1374 default: 1375 ciss_printf(sc, "error detecting logical drive configuration (%s)\n", 1376 ciss_name_command_status(command_status)); 1377 error = EIO; 1378 goto out; 1379 } 1380 ciss_release_request(cr); 1381 cr = NULL; 1382 1383 out: 1384 if (cr != NULL) 1385 ciss_release_request(cr); 1386 if (error && cll != NULL) { 1387 free(cll, CISS_MALLOC_CLASS); 1388 cll = NULL; 1389 } 1390 return(cll); 1391 } 1392 1393 /************************************************************************ 1394 * Find logical drives on the adapter. 1395 */ 1396 static int 1397 ciss_init_logical(struct ciss_softc *sc) 1398 { 1399 struct ciss_lun_report *cll; 1400 int error = 0, i, j; 1401 int ndrives; 1402 1403 debug_called(1); 1404 1405 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 1406 sc->ciss_cfg->max_logical_supported); 1407 if (cll == NULL) { 1408 error = ENXIO; 1409 goto out; 1410 } 1411 1412 /* sanity-check reply */ 1413 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1414 if ((ndrives < 0) || (ndrives > sc->ciss_cfg->max_logical_supported)) { 1415 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n", 1416 ndrives, sc->ciss_cfg->max_logical_supported); 1417 error = ENXIO; 1418 goto out; 1419 } 1420 1421 /* 1422 * Save logical drive information. 1423 */ 1424 if (bootverbose) { 1425 ciss_printf(sc, "%d logical drive%s\n", 1426 ndrives, (ndrives > 1 || ndrives == 0) ? "s" : ""); 1427 } 1428 1429 sc->ciss_logical = 1430 malloc(sc->ciss_max_logical_bus * sizeof(struct ciss_ldrive *), 1431 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1432 if (sc->ciss_logical == NULL) { 1433 error = ENXIO; 1434 goto out; 1435 } 1436 1437 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1438 sc->ciss_logical[i] = 1439 malloc(sc->ciss_cfg->max_logical_supported * 1440 sizeof(struct ciss_ldrive), 1441 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1442 if (sc->ciss_logical[i] == NULL) { 1443 error = ENXIO; 1444 goto out; 1445 } 1446 1447 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) 1448 sc->ciss_logical[i][j].cl_status = CISS_LD_NONEXISTENT; 1449 } 1450 1451 1452 for (i = 0; i < sc->ciss_cfg->max_logical_supported; i++) { 1453 if (i < ndrives) { 1454 struct ciss_ldrive *ld; 1455 int bus, target; 1456 1457 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 1458 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 1459 ld = &sc->ciss_logical[bus][target]; 1460 1461 ld->cl_address = cll->lun[i]; 1462 ld->cl_controller = &sc->ciss_controllers[bus]; 1463 if (ciss_identify_logical(sc, ld) != 0) 1464 continue; 1465 /* 1466 * If the drive has had media exchanged, we should bring it online. 1467 */ 1468 if (ld->cl_lstatus->media_exchanged) 1469 ciss_accept_media(sc, ld); 1470 1471 } 1472 } 1473 1474 out: 1475 if (cll != NULL) 1476 free(cll, CISS_MALLOC_CLASS); 1477 return(error); 1478 } 1479 1480 static int 1481 ciss_init_physical(struct ciss_softc *sc) 1482 { 1483 struct ciss_lun_report *cll; 1484 int error = 0, i; 1485 int nphys; 1486 int bus, target; 1487 1488 debug_called(1); 1489 1490 bus = 0; 1491 target = 0; 1492 1493 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 1494 sc->ciss_cfg->max_physical_supported); 1495 if (cll == NULL) { 1496 error = ENXIO; 1497 goto out; 1498 } 1499 1500 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1501 1502 if (bootverbose) { 1503 ciss_printf(sc, "%d physical device%s\n", 1504 nphys, (nphys > 1 || nphys == 0) ? "s" : ""); 1505 } 1506 1507 /* 1508 * Figure out the bus mapping. 1509 * Logical buses include both the local logical bus for local arrays and 1510 * proxy buses for remote arrays. Physical buses are numbered by the 1511 * controller and represent physical buses that hold physical devices. 1512 * We shift these bus numbers so that everything fits into a single flat 1513 * numbering space for CAM. Logical buses occupy the first 32 CAM bus 1514 * numbers, and the physical bus numbers are shifted to be above that. 1515 * This results in the various driver arrays being indexed as follows: 1516 * 1517 * ciss_controllers[] - indexed by logical bus 1518 * ciss_cam_sim[] - indexed by both logical and physical, with physical 1519 * being shifted by 32. 1520 * ciss_logical[][] - indexed by logical bus 1521 * ciss_physical[][] - indexed by physical bus 1522 * 1523 * XXX This is getting more and more hackish. CISS really doesn't play 1524 * well with a standard SCSI model; devices are addressed via magic 1525 * cookies, not via b/t/l addresses. Since there is no way to store 1526 * the cookie in the CAM device object, we have to keep these lookup 1527 * tables handy so that the devices can be found quickly at the cost 1528 * of wasting memory and having a convoluted lookup scheme. This 1529 * driver should probably be converted to block interface. 1530 */ 1531 /* 1532 * If the L2 and L3 SCSI addresses are 0, this signifies a proxy 1533 * controller. A proxy controller is another physical controller 1534 * behind the primary PCI controller. We need to know about this 1535 * so that BMIC commands can be properly targeted. There can be 1536 * proxy controllers attached to a single PCI controller, so 1537 * find the highest numbered one so the array can be properly 1538 * sized. 1539 */ 1540 sc->ciss_max_logical_bus = 1; 1541 for (i = 0; i < nphys; i++) { 1542 if (cll->lun[i].physical.extra_address == 0) { 1543 bus = cll->lun[i].physical.bus; 1544 sc->ciss_max_logical_bus = max(sc->ciss_max_logical_bus, bus) + 1; 1545 } else { 1546 bus = CISS_EXTRA_BUS2(cll->lun[i].physical.extra_address); 1547 sc->ciss_max_physical_bus = max(sc->ciss_max_physical_bus, bus); 1548 } 1549 } 1550 1551 sc->ciss_controllers = 1552 malloc(sc->ciss_max_logical_bus * sizeof (union ciss_device_address), 1553 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1554 1555 if (sc->ciss_controllers == NULL) { 1556 ciss_printf(sc, "Could not allocate memory for controller map\n"); 1557 error = ENOMEM; 1558 goto out; 1559 } 1560 1561 /* setup a map of controller addresses */ 1562 for (i = 0; i < nphys; i++) { 1563 if (cll->lun[i].physical.extra_address == 0) { 1564 sc->ciss_controllers[cll->lun[i].physical.bus] = cll->lun[i]; 1565 } 1566 } 1567 1568 sc->ciss_physical = 1569 malloc(sc->ciss_max_physical_bus * sizeof(struct ciss_pdrive *), 1570 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1571 if (sc->ciss_physical == NULL) { 1572 ciss_printf(sc, "Could not allocate memory for physical device map\n"); 1573 error = ENOMEM; 1574 goto out; 1575 } 1576 1577 for (i = 0; i < sc->ciss_max_physical_bus; i++) { 1578 sc->ciss_physical[i] = 1579 malloc(sizeof(struct ciss_pdrive) * CISS_MAX_PHYSTGT, 1580 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1581 if (sc->ciss_physical[i] == NULL) { 1582 ciss_printf(sc, "Could not allocate memory for target map\n"); 1583 error = ENOMEM; 1584 goto out; 1585 } 1586 } 1587 1588 ciss_filter_physical(sc, cll); 1589 1590 out: 1591 if (cll != NULL) 1592 free(cll, CISS_MALLOC_CLASS); 1593 1594 return(error); 1595 } 1596 1597 static int 1598 ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll) 1599 { 1600 u_int32_t ea; 1601 int i, nphys; 1602 int bus, target; 1603 1604 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1605 for (i = 0; i < nphys; i++) { 1606 if (cll->lun[i].physical.extra_address == 0) 1607 continue; 1608 1609 /* 1610 * Filter out devices that we don't want. Level 3 LUNs could 1611 * probably be supported, but the docs don't give enough of a 1612 * hint to know how. 1613 * 1614 * The mode field of the physical address is likely set to have 1615 * hard disks masked out. Honor it unless the user has overridden 1616 * us with the tunable. We also munge the inquiry data for these 1617 * disks so that they only show up as passthrough devices. Keeping 1618 * them visible in this fashion is useful for doing things like 1619 * flashing firmware. 1620 */ 1621 ea = cll->lun[i].physical.extra_address; 1622 if ((CISS_EXTRA_BUS3(ea) != 0) || (CISS_EXTRA_TARGET3(ea) != 0) || 1623 (CISS_EXTRA_MODE2(ea) == 0x3)) 1624 continue; 1625 if ((ciss_expose_hidden_physical == 0) && 1626 (cll->lun[i].physical.mode == CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL)) 1627 continue; 1628 1629 /* 1630 * Note: CISS firmware numbers physical busses starting at '1', not 1631 * '0'. This numbering is internal to the firmware and is only 1632 * used as a hint here. 1633 */ 1634 bus = CISS_EXTRA_BUS2(ea) - 1; 1635 target = CISS_EXTRA_TARGET2(ea); 1636 sc->ciss_physical[bus][target].cp_address = cll->lun[i]; 1637 sc->ciss_physical[bus][target].cp_online = 1; 1638 } 1639 1640 return (0); 1641 } 1642 1643 static int 1644 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1645 { 1646 struct ciss_request *cr; 1647 struct ciss_command *cc; 1648 struct scsi_inquiry *inq; 1649 int error; 1650 int command_status; 1651 1652 cr = NULL; 1653 1654 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry)); 1655 1656 if ((error = ciss_get_request(sc, &cr)) != 0) 1657 goto out; 1658 1659 cc = cr->cr_cc; 1660 cr->cr_data = &ld->cl_geometry; 1661 cr->cr_length = sizeof(ld->cl_geometry); 1662 cr->cr_flags = CISS_REQ_DATAIN; 1663 1664 cc->header.address = ld->cl_address; 1665 cc->cdb.cdb_length = 6; 1666 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1667 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1668 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1669 cc->cdb.timeout = 30; 1670 1671 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]); 1672 inq->opcode = INQUIRY; 1673 inq->byte2 = SI_EVPD; 1674 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY; 1675 scsi_ulto2b(sizeof(ld->cl_geometry), inq->length); 1676 1677 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1678 ciss_printf(sc, "error getting geometry (%d)\n", error); 1679 goto out; 1680 } 1681 1682 ciss_report_request(cr, &command_status, NULL); 1683 switch(command_status) { 1684 case CISS_CMD_STATUS_SUCCESS: 1685 case CISS_CMD_STATUS_DATA_UNDERRUN: 1686 break; 1687 case CISS_CMD_STATUS_DATA_OVERRUN: 1688 ciss_printf(sc, "WARNING: Data overrun\n"); 1689 break; 1690 default: 1691 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n", 1692 ciss_name_command_status(command_status)); 1693 break; 1694 } 1695 1696 out: 1697 if (cr != NULL) 1698 ciss_release_request(cr); 1699 return(error); 1700 } 1701 /************************************************************************ 1702 * Identify a logical drive, initialise state related to it. 1703 */ 1704 static int 1705 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1706 { 1707 struct ciss_request *cr; 1708 struct ciss_command *cc; 1709 struct ciss_bmic_cdb *cbc; 1710 int error, command_status; 1711 1712 debug_called(1); 1713 1714 cr = NULL; 1715 1716 /* 1717 * Build a BMIC request to fetch the drive ID. 1718 */ 1719 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE, 1720 (void **)&ld->cl_ldrive, 1721 sizeof(*ld->cl_ldrive))) != 0) 1722 goto out; 1723 cc = cr->cr_cc; 1724 cc->header.address = *ld->cl_controller; /* target controller */ 1725 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1726 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1727 1728 /* 1729 * Submit the request and wait for it to complete. 1730 */ 1731 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1732 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error); 1733 goto out; 1734 } 1735 1736 /* 1737 * Check response. 1738 */ 1739 ciss_report_request(cr, &command_status, NULL); 1740 switch(command_status) { 1741 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1742 break; 1743 case CISS_CMD_STATUS_DATA_UNDERRUN: 1744 case CISS_CMD_STATUS_DATA_OVERRUN: 1745 ciss_printf(sc, "data over/underrun reading logical drive ID\n"); 1746 default: 1747 ciss_printf(sc, "error reading logical drive ID (%s)\n", 1748 ciss_name_command_status(command_status)); 1749 error = EIO; 1750 goto out; 1751 } 1752 ciss_release_request(cr); 1753 cr = NULL; 1754 1755 /* 1756 * Build a CISS BMIC command to get the logical drive status. 1757 */ 1758 if ((error = ciss_get_ldrive_status(sc, ld)) != 0) 1759 goto out; 1760 1761 /* 1762 * Get the logical drive geometry. 1763 */ 1764 if ((error = ciss_inquiry_logical(sc, ld)) != 0) 1765 goto out; 1766 1767 /* 1768 * Print the drive's basic characteristics. 1769 */ 1770 if (bootverbose) { 1771 ciss_printf(sc, "logical drive (b%dt%d): %s, %dMB ", 1772 CISS_LUN_TO_BUS(ld->cl_address.logical.lun), 1773 CISS_LUN_TO_TARGET(ld->cl_address.logical.lun), 1774 ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance), 1775 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) * 1776 ld->cl_ldrive->block_size)); 1777 1778 ciss_print_ldrive(sc, ld); 1779 } 1780 out: 1781 if (error != 0) { 1782 /* make the drive not-exist */ 1783 ld->cl_status = CISS_LD_NONEXISTENT; 1784 if (ld->cl_ldrive != NULL) { 1785 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 1786 ld->cl_ldrive = NULL; 1787 } 1788 if (ld->cl_lstatus != NULL) { 1789 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 1790 ld->cl_lstatus = NULL; 1791 } 1792 } 1793 if (cr != NULL) 1794 ciss_release_request(cr); 1795 1796 return(error); 1797 } 1798 1799 /************************************************************************ 1800 * Get status for a logical drive. 1801 * 1802 * XXX should we also do this in response to Test Unit Ready? 1803 */ 1804 static int 1805 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld) 1806 { 1807 struct ciss_request *cr; 1808 struct ciss_command *cc; 1809 struct ciss_bmic_cdb *cbc; 1810 int error, command_status; 1811 1812 /* 1813 * Build a CISS BMIC command to get the logical drive status. 1814 */ 1815 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS, 1816 (void **)&ld->cl_lstatus, 1817 sizeof(*ld->cl_lstatus))) != 0) 1818 goto out; 1819 cc = cr->cr_cc; 1820 cc->header.address = *ld->cl_controller; /* target controller */ 1821 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1822 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1823 1824 /* 1825 * Submit the request and wait for it to complete. 1826 */ 1827 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1828 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1829 goto out; 1830 } 1831 1832 /* 1833 * Check response. 1834 */ 1835 ciss_report_request(cr, &command_status, NULL); 1836 switch(command_status) { 1837 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1838 break; 1839 case CISS_CMD_STATUS_DATA_UNDERRUN: 1840 case CISS_CMD_STATUS_DATA_OVERRUN: 1841 ciss_printf(sc, "data over/underrun reading logical drive status\n"); 1842 default: 1843 ciss_printf(sc, "error reading logical drive status (%s)\n", 1844 ciss_name_command_status(command_status)); 1845 error = EIO; 1846 goto out; 1847 } 1848 1849 /* 1850 * Set the drive's summary status based on the returned status. 1851 * 1852 * XXX testing shows that a failed JBOD drive comes back at next 1853 * boot in "queued for expansion" mode. WTF? 1854 */ 1855 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status); 1856 1857 out: 1858 if (cr != NULL) 1859 ciss_release_request(cr); 1860 return(error); 1861 } 1862 1863 /************************************************************************ 1864 * Notify the adapter of a config update. 1865 */ 1866 static int 1867 ciss_update_config(struct ciss_softc *sc) 1868 { 1869 int i; 1870 1871 debug_called(1); 1872 1873 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE); 1874 for (i = 0; i < 1000; i++) { 1875 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) & 1876 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) { 1877 return(0); 1878 } 1879 DELAY(1000); 1880 } 1881 return(1); 1882 } 1883 1884 /************************************************************************ 1885 * Accept new media into a logical drive. 1886 * 1887 * XXX The drive has previously been offline; it would be good if we 1888 * could make sure it's not open right now. 1889 */ 1890 static int 1891 ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld) 1892 { 1893 struct ciss_request *cr; 1894 struct ciss_command *cc; 1895 struct ciss_bmic_cdb *cbc; 1896 int command_status; 1897 int error = 0, ldrive; 1898 1899 ldrive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1900 1901 debug(0, "bringing logical drive %d back online", ldrive); 1902 1903 /* 1904 * Build a CISS BMIC command to bring the drive back online. 1905 */ 1906 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA, 1907 NULL, 0)) != 0) 1908 goto out; 1909 cc = cr->cr_cc; 1910 cc->header.address = *ld->cl_controller; /* target controller */ 1911 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1912 cbc->log_drive = ldrive; 1913 1914 /* 1915 * Submit the request and wait for it to complete. 1916 */ 1917 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1918 ciss_printf(sc, "error sending BMIC ACCEPT MEDIA command (%d)\n", error); 1919 goto out; 1920 } 1921 1922 /* 1923 * Check response. 1924 */ 1925 ciss_report_request(cr, &command_status, NULL); 1926 switch(command_status) { 1927 case CISS_CMD_STATUS_SUCCESS: /* all OK */ 1928 /* we should get a logical drive status changed event here */ 1929 break; 1930 default: 1931 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n", 1932 ciss_name_command_status(command_status)); 1933 break; 1934 } 1935 1936 out: 1937 if (cr != NULL) 1938 ciss_release_request(cr); 1939 return(error); 1940 } 1941 1942 /************************************************************************ 1943 * Release adapter resources. 1944 */ 1945 static void 1946 ciss_free(struct ciss_softc *sc) 1947 { 1948 struct ciss_request *cr; 1949 int i, j; 1950 1951 debug_called(1); 1952 1953 /* we're going away */ 1954 sc->ciss_flags |= CISS_FLAG_ABORTING; 1955 1956 /* terminate the periodic heartbeat routine */ 1957 callout_stop(&sc->ciss_periodic); 1958 1959 /* cancel the Event Notify chain */ 1960 ciss_notify_abort(sc); 1961 1962 ciss_kill_notify_thread(sc); 1963 1964 /* disconnect from CAM */ 1965 if (sc->ciss_cam_sim) { 1966 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1967 if (sc->ciss_cam_sim[i]) { 1968 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1969 cam_sim_free(sc->ciss_cam_sim[i], 0); 1970 } 1971 } 1972 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 1973 CISS_PHYSICAL_BASE; i++) { 1974 if (sc->ciss_cam_sim[i]) { 1975 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1976 cam_sim_free(sc->ciss_cam_sim[i], 0); 1977 } 1978 } 1979 free(sc->ciss_cam_sim, CISS_MALLOC_CLASS); 1980 } 1981 if (sc->ciss_cam_devq) 1982 cam_simq_free(sc->ciss_cam_devq); 1983 1984 /* remove the control device */ 1985 mtx_unlock(&sc->ciss_mtx); 1986 if (sc->ciss_dev_t != NULL) 1987 destroy_dev(sc->ciss_dev_t); 1988 1989 /* Final cleanup of the callout. */ 1990 callout_drain(&sc->ciss_periodic); 1991 mtx_destroy(&sc->ciss_mtx); 1992 1993 /* free the controller data */ 1994 if (sc->ciss_id != NULL) 1995 free(sc->ciss_id, CISS_MALLOC_CLASS); 1996 1997 /* release I/O resources */ 1998 if (sc->ciss_regs_resource != NULL) 1999 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 2000 sc->ciss_regs_rid, sc->ciss_regs_resource); 2001 if (sc->ciss_cfg_resource != NULL) 2002 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 2003 sc->ciss_cfg_rid, sc->ciss_cfg_resource); 2004 if (sc->ciss_intr != NULL) 2005 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr); 2006 if (sc->ciss_irq_resource != NULL) 2007 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ, 2008 sc->ciss_irq_rid[0], sc->ciss_irq_resource); 2009 if (sc->ciss_msi) 2010 pci_release_msi(sc->ciss_dev); 2011 2012 while ((cr = ciss_dequeue_free(sc)) != NULL) 2013 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap); 2014 if (sc->ciss_buffer_dmat) 2015 bus_dma_tag_destroy(sc->ciss_buffer_dmat); 2016 2017 /* destroy command memory and DMA tag */ 2018 if (sc->ciss_command != NULL) { 2019 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map); 2020 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map); 2021 } 2022 if (sc->ciss_command_dmat) 2023 bus_dma_tag_destroy(sc->ciss_command_dmat); 2024 2025 if (sc->ciss_reply) { 2026 bus_dmamap_unload(sc->ciss_reply_dmat, sc->ciss_reply_map); 2027 bus_dmamem_free(sc->ciss_reply_dmat, sc->ciss_reply, sc->ciss_reply_map); 2028 } 2029 if (sc->ciss_reply_dmat) 2030 bus_dma_tag_destroy(sc->ciss_reply_dmat); 2031 2032 /* destroy DMA tags */ 2033 if (sc->ciss_parent_dmat) 2034 bus_dma_tag_destroy(sc->ciss_parent_dmat); 2035 if (sc->ciss_logical) { 2036 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 2037 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) { 2038 if (sc->ciss_logical[i][j].cl_ldrive) 2039 free(sc->ciss_logical[i][j].cl_ldrive, CISS_MALLOC_CLASS); 2040 if (sc->ciss_logical[i][j].cl_lstatus) 2041 free(sc->ciss_logical[i][j].cl_lstatus, CISS_MALLOC_CLASS); 2042 } 2043 free(sc->ciss_logical[i], CISS_MALLOC_CLASS); 2044 } 2045 free(sc->ciss_logical, CISS_MALLOC_CLASS); 2046 } 2047 2048 if (sc->ciss_physical) { 2049 for (i = 0; i < sc->ciss_max_physical_bus; i++) 2050 free(sc->ciss_physical[i], CISS_MALLOC_CLASS); 2051 free(sc->ciss_physical, CISS_MALLOC_CLASS); 2052 } 2053 2054 if (sc->ciss_controllers) 2055 free(sc->ciss_controllers, CISS_MALLOC_CLASS); 2056 2057 } 2058 2059 /************************************************************************ 2060 * Give a command to the adapter. 2061 * 2062 * Note that this uses the simple transport layer directly. If we 2063 * want to add support for other layers, we'll need a switch of some 2064 * sort. 2065 * 2066 * Note that the simple transport layer has no way of refusing a 2067 * command; we only have as many request structures as the adapter 2068 * supports commands, so we don't have to check (this presumes that 2069 * the adapter can handle commands as fast as we throw them at it). 2070 */ 2071 static int 2072 ciss_start(struct ciss_request *cr) 2073 { 2074 struct ciss_command *cc; /* XXX debugging only */ 2075 int error; 2076 2077 cc = cr->cr_cc; 2078 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag); 2079 2080 /* 2081 * Map the request's data. 2082 */ 2083 if ((error = ciss_map_request(cr))) 2084 return(error); 2085 2086 #if 0 2087 ciss_print_request(cr); 2088 #endif 2089 2090 return(0); 2091 } 2092 2093 /************************************************************************ 2094 * Fetch completed request(s) from the adapter, queue them for 2095 * completion handling. 2096 * 2097 * Note that this uses the simple transport layer directly. If we 2098 * want to add support for other layers, we'll need a switch of some 2099 * sort. 2100 * 2101 * Note that the simple transport mechanism does not require any 2102 * reentrancy protection; the OPQ read is atomic. If there is a 2103 * chance of a race with something else that might move the request 2104 * off the busy list, then we will have to lock against that 2105 * (eg. timeouts, etc.) 2106 */ 2107 static void 2108 ciss_done(struct ciss_softc *sc, cr_qhead_t *qh) 2109 { 2110 struct ciss_request *cr; 2111 struct ciss_command *cc; 2112 u_int32_t tag, index; 2113 2114 debug_called(3); 2115 2116 /* 2117 * Loop quickly taking requests from the adapter and moving them 2118 * to the completed queue. 2119 */ 2120 for (;;) { 2121 2122 tag = CISS_TL_SIMPLE_FETCH_CMD(sc); 2123 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY) 2124 break; 2125 index = tag >> 2; 2126 debug(2, "completed command %d%s", index, 2127 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2128 if (index >= sc->ciss_max_requests) { 2129 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2130 continue; 2131 } 2132 cr = &(sc->ciss_request[index]); 2133 cc = cr->cr_cc; 2134 cc->header.host_tag = tag; /* not updated by adapter */ 2135 ciss_enqueue_complete(cr, qh); 2136 } 2137 2138 } 2139 2140 static void 2141 ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh) 2142 { 2143 struct ciss_request *cr; 2144 struct ciss_command *cc; 2145 u_int32_t tag, index; 2146 2147 debug_called(3); 2148 2149 /* 2150 * Loop quickly taking requests from the adapter and moving them 2151 * to the completed queue. 2152 */ 2153 for (;;) { 2154 tag = sc->ciss_reply[sc->ciss_rqidx]; 2155 if ((tag & CISS_CYCLE_MASK) != sc->ciss_cycle) 2156 break; 2157 index = tag >> 2; 2158 debug(2, "completed command %d%s\n", index, 2159 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2160 if (index < sc->ciss_max_requests) { 2161 cr = &(sc->ciss_request[index]); 2162 cc = cr->cr_cc; 2163 cc->header.host_tag = tag; /* not updated by adapter */ 2164 ciss_enqueue_complete(cr, qh); 2165 } else { 2166 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2167 } 2168 if (++sc->ciss_rqidx == sc->ciss_max_requests) { 2169 sc->ciss_rqidx = 0; 2170 sc->ciss_cycle ^= 1; 2171 } 2172 } 2173 2174 } 2175 2176 /************************************************************************ 2177 * Take an interrupt from the adapter. 2178 */ 2179 static void 2180 ciss_intr(void *arg) 2181 { 2182 cr_qhead_t qh; 2183 struct ciss_softc *sc = (struct ciss_softc *)arg; 2184 2185 /* 2186 * The only interrupt we recognise indicates that there are 2187 * entries in the outbound post queue. 2188 */ 2189 STAILQ_INIT(&qh); 2190 ciss_done(sc, &qh); 2191 mtx_lock(&sc->ciss_mtx); 2192 ciss_complete(sc, &qh); 2193 mtx_unlock(&sc->ciss_mtx); 2194 } 2195 2196 static void 2197 ciss_perf_intr(void *arg) 2198 { 2199 struct ciss_softc *sc = (struct ciss_softc *)arg; 2200 2201 /* Clear the interrupt and flush the bridges. Docs say that the flush 2202 * needs to be done twice, which doesn't seem right. 2203 */ 2204 CISS_TL_PERF_CLEAR_INT(sc); 2205 CISS_TL_PERF_FLUSH_INT(sc); 2206 2207 ciss_perf_msi_intr(sc); 2208 } 2209 2210 static void 2211 ciss_perf_msi_intr(void *arg) 2212 { 2213 cr_qhead_t qh; 2214 struct ciss_softc *sc = (struct ciss_softc *)arg; 2215 2216 STAILQ_INIT(&qh); 2217 ciss_perf_done(sc, &qh); 2218 mtx_lock(&sc->ciss_mtx); 2219 ciss_complete(sc, &qh); 2220 mtx_unlock(&sc->ciss_mtx); 2221 } 2222 2223 2224 /************************************************************************ 2225 * Process completed requests. 2226 * 2227 * Requests can be completed in three fashions: 2228 * 2229 * - by invoking a callback function (cr_complete is non-null) 2230 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set) 2231 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context 2232 */ 2233 static void 2234 ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh) 2235 { 2236 struct ciss_request *cr; 2237 2238 debug_called(2); 2239 2240 /* 2241 * Loop taking requests off the completed queue and performing 2242 * completion processing on them. 2243 */ 2244 for (;;) { 2245 if ((cr = ciss_dequeue_complete(sc, qh)) == NULL) 2246 break; 2247 ciss_unmap_request(cr); 2248 2249 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 2250 ciss_printf(sc, "WARNING: completing non-busy request\n"); 2251 cr->cr_flags &= ~CISS_REQ_BUSY; 2252 2253 /* 2254 * If the request has a callback, invoke it. 2255 */ 2256 if (cr->cr_complete != NULL) { 2257 cr->cr_complete(cr); 2258 continue; 2259 } 2260 2261 /* 2262 * If someone is sleeping on this request, wake them up. 2263 */ 2264 if (cr->cr_flags & CISS_REQ_SLEEP) { 2265 cr->cr_flags &= ~CISS_REQ_SLEEP; 2266 wakeup(cr); 2267 continue; 2268 } 2269 2270 /* 2271 * If someone is polling this request for completion, signal. 2272 */ 2273 if (cr->cr_flags & CISS_REQ_POLL) { 2274 cr->cr_flags &= ~CISS_REQ_POLL; 2275 continue; 2276 } 2277 2278 /* 2279 * Give up and throw the request back on the free queue. This 2280 * should never happen; resources will probably be lost. 2281 */ 2282 ciss_printf(sc, "WARNING: completed command with no submitter\n"); 2283 ciss_enqueue_free(cr); 2284 } 2285 } 2286 2287 /************************************************************************ 2288 * Report on the completion status of a request, and pass back SCSI 2289 * and command status values. 2290 */ 2291 static int 2292 _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func) 2293 { 2294 struct ciss_command *cc; 2295 struct ciss_error_info *ce; 2296 2297 debug_called(2); 2298 2299 cc = cr->cr_cc; 2300 ce = (struct ciss_error_info *)&(cc->sg[0]); 2301 2302 /* 2303 * We don't consider data under/overrun an error for the Report 2304 * Logical/Physical LUNs commands. 2305 */ 2306 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) && 2307 ((ce->command_status == CISS_CMD_STATUS_DATA_OVERRUN) || 2308 (ce->command_status == CISS_CMD_STATUS_DATA_UNDERRUN)) && 2309 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) || 2310 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS) || 2311 (cc->cdb.cdb[0] == INQUIRY))) { 2312 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR; 2313 debug(2, "ignoring irrelevant under/overrun error"); 2314 } 2315 2316 /* 2317 * Check the command's error bit, if clear, there's no status and 2318 * everything is OK. 2319 */ 2320 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) { 2321 if (scsi_status != NULL) 2322 *scsi_status = SCSI_STATUS_OK; 2323 if (command_status != NULL) 2324 *command_status = CISS_CMD_STATUS_SUCCESS; 2325 return(0); 2326 } else { 2327 if (command_status != NULL) 2328 *command_status = ce->command_status; 2329 if (scsi_status != NULL) { 2330 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) { 2331 *scsi_status = ce->scsi_status; 2332 } else { 2333 *scsi_status = -1; 2334 } 2335 } 2336 if (bootverbose) 2337 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n", 2338 ce->command_status, ciss_name_command_status(ce->command_status), 2339 ce->scsi_status); 2340 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) { 2341 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x, function %s\n", 2342 ce->additional_error_info.invalid_command.offense_size, 2343 ce->additional_error_info.invalid_command.offense_offset, 2344 ce->additional_error_info.invalid_command.offense_value, 2345 func); 2346 } 2347 } 2348 #if 0 2349 ciss_print_request(cr); 2350 #endif 2351 return(1); 2352 } 2353 2354 /************************************************************************ 2355 * Issue a request and don't return until it's completed. 2356 * 2357 * Depending on adapter status, we may poll or sleep waiting for 2358 * completion. 2359 */ 2360 static int 2361 ciss_synch_request(struct ciss_request *cr, int timeout) 2362 { 2363 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) { 2364 return(ciss_wait_request(cr, timeout)); 2365 } else { 2366 return(ciss_poll_request(cr, timeout)); 2367 } 2368 } 2369 2370 /************************************************************************ 2371 * Issue a request and poll for completion. 2372 * 2373 * Timeout in milliseconds. 2374 */ 2375 static int 2376 ciss_poll_request(struct ciss_request *cr, int timeout) 2377 { 2378 cr_qhead_t qh; 2379 struct ciss_softc *sc; 2380 int error; 2381 2382 debug_called(2); 2383 2384 STAILQ_INIT(&qh); 2385 sc = cr->cr_sc; 2386 cr->cr_flags |= CISS_REQ_POLL; 2387 if ((error = ciss_start(cr)) != 0) 2388 return(error); 2389 2390 do { 2391 if (sc->ciss_perf) 2392 ciss_perf_done(sc, &qh); 2393 else 2394 ciss_done(sc, &qh); 2395 ciss_complete(sc, &qh); 2396 if (!(cr->cr_flags & CISS_REQ_POLL)) 2397 return(0); 2398 DELAY(1000); 2399 } while (timeout-- >= 0); 2400 return(EWOULDBLOCK); 2401 } 2402 2403 /************************************************************************ 2404 * Issue a request and sleep waiting for completion. 2405 * 2406 * Timeout in milliseconds. Note that a spurious wakeup will reset 2407 * the timeout. 2408 */ 2409 static int 2410 ciss_wait_request(struct ciss_request *cr, int timeout) 2411 { 2412 int error; 2413 2414 debug_called(2); 2415 2416 cr->cr_flags |= CISS_REQ_SLEEP; 2417 if ((error = ciss_start(cr)) != 0) 2418 return(error); 2419 2420 while ((cr->cr_flags & CISS_REQ_SLEEP) && (error != EWOULDBLOCK)) { 2421 error = msleep_sbt(cr, &cr->cr_sc->ciss_mtx, PRIBIO, "cissREQ", 2422 SBT_1MS * timeout, 0, 0); 2423 } 2424 return(error); 2425 } 2426 2427 #if 0 2428 /************************************************************************ 2429 * Abort a request. Note that a potential exists here to race the 2430 * request being completed; the caller must deal with this. 2431 */ 2432 static int 2433 ciss_abort_request(struct ciss_request *ar) 2434 { 2435 struct ciss_request *cr; 2436 struct ciss_command *cc; 2437 struct ciss_message_cdb *cmc; 2438 int error; 2439 2440 debug_called(1); 2441 2442 /* get a request */ 2443 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0) 2444 return(error); 2445 2446 /* build the abort command */ 2447 cc = cr->cr_cc; 2448 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */ 2449 cc->header.address.physical.target = 0; 2450 cc->header.address.physical.bus = 0; 2451 cc->cdb.cdb_length = sizeof(*cmc); 2452 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 2453 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2454 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2455 cc->cdb.timeout = 30; 2456 2457 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]); 2458 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT; 2459 cmc->type = CISS_MESSAGE_ABORT_TASK; 2460 cmc->abort_tag = ar->cr_tag; /* endianness?? */ 2461 2462 /* 2463 * Send the request and wait for a response. If we believe we 2464 * aborted the request OK, clear the flag that indicates it's 2465 * running. 2466 */ 2467 error = ciss_synch_request(cr, 35 * 1000); 2468 if (!error) 2469 error = ciss_report_request(cr, NULL, NULL); 2470 ciss_release_request(cr); 2471 2472 return(error); 2473 } 2474 #endif 2475 2476 2477 /************************************************************************ 2478 * Fetch and initialise a request 2479 */ 2480 static int 2481 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp) 2482 { 2483 struct ciss_request *cr; 2484 2485 debug_called(2); 2486 2487 /* 2488 * Get a request and clean it up. 2489 */ 2490 if ((cr = ciss_dequeue_free(sc)) == NULL) 2491 return(ENOMEM); 2492 2493 cr->cr_data = NULL; 2494 cr->cr_flags = 0; 2495 cr->cr_complete = NULL; 2496 cr->cr_private = NULL; 2497 cr->cr_sg_tag = CISS_SG_MAX; /* Backstop to prevent accidents */ 2498 2499 ciss_preen_command(cr); 2500 *crp = cr; 2501 return(0); 2502 } 2503 2504 static void 2505 ciss_preen_command(struct ciss_request *cr) 2506 { 2507 struct ciss_command *cc; 2508 u_int32_t cmdphys; 2509 2510 /* 2511 * Clean up the command structure. 2512 * 2513 * Note that we set up the error_info structure here, since the 2514 * length can be overwritten by any command. 2515 */ 2516 cc = cr->cr_cc; 2517 cc->header.sg_in_list = 0; /* kinda inefficient this way */ 2518 cc->header.sg_total = 0; 2519 cc->header.host_tag = cr->cr_tag << 2; 2520 cc->header.host_tag_zeroes = 0; 2521 bzero(&(cc->sg[0]), CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command)); 2522 cmdphys = cr->cr_ccphys; 2523 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command); 2524 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command); 2525 } 2526 2527 /************************************************************************ 2528 * Release a request to the free list. 2529 */ 2530 static void 2531 ciss_release_request(struct ciss_request *cr) 2532 { 2533 struct ciss_softc *sc; 2534 2535 debug_called(2); 2536 2537 sc = cr->cr_sc; 2538 2539 /* release the request to the free queue */ 2540 ciss_requeue_free(cr); 2541 } 2542 2543 /************************************************************************ 2544 * Allocate a request that will be used to send a BMIC command. Do some 2545 * of the common setup here to avoid duplicating it everywhere else. 2546 */ 2547 static int 2548 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 2549 int opcode, void **bufp, size_t bufsize) 2550 { 2551 struct ciss_request *cr; 2552 struct ciss_command *cc; 2553 struct ciss_bmic_cdb *cbc; 2554 void *buf; 2555 int error; 2556 int dataout; 2557 2558 debug_called(2); 2559 2560 cr = NULL; 2561 buf = NULL; 2562 2563 /* 2564 * Get a request. 2565 */ 2566 if ((error = ciss_get_request(sc, &cr)) != 0) 2567 goto out; 2568 2569 /* 2570 * Allocate data storage if requested, determine the data direction. 2571 */ 2572 dataout = 0; 2573 if ((bufsize > 0) && (bufp != NULL)) { 2574 if (*bufp == NULL) { 2575 if ((buf = malloc(bufsize, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 2576 error = ENOMEM; 2577 goto out; 2578 } 2579 } else { 2580 buf = *bufp; 2581 dataout = 1; /* we are given a buffer, so we are writing */ 2582 } 2583 } 2584 2585 /* 2586 * Build a CISS BMIC command to get the logical drive ID. 2587 */ 2588 cr->cr_data = buf; 2589 cr->cr_length = bufsize; 2590 if (!dataout) 2591 cr->cr_flags = CISS_REQ_DATAIN; 2592 2593 cc = cr->cr_cc; 2594 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2595 cc->header.address.physical.bus = 0; 2596 cc->header.address.physical.target = 0; 2597 cc->cdb.cdb_length = sizeof(*cbc); 2598 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2599 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2600 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ; 2601 cc->cdb.timeout = 0; 2602 2603 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 2604 bzero(cbc, sizeof(*cbc)); 2605 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ; 2606 cbc->bmic_opcode = opcode; 2607 cbc->size = htons((u_int16_t)bufsize); 2608 2609 out: 2610 if (error) { 2611 if (cr != NULL) 2612 ciss_release_request(cr); 2613 } else { 2614 *crp = cr; 2615 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 2616 *bufp = buf; 2617 } 2618 return(error); 2619 } 2620 2621 /************************************************************************ 2622 * Handle a command passed in from userspace. 2623 */ 2624 static int 2625 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc) 2626 { 2627 struct ciss_request *cr; 2628 struct ciss_command *cc; 2629 struct ciss_error_info *ce; 2630 int error = 0; 2631 2632 debug_called(1); 2633 2634 cr = NULL; 2635 2636 /* 2637 * Get a request. 2638 */ 2639 while (ciss_get_request(sc, &cr) != 0) 2640 msleep(sc, &sc->ciss_mtx, PPAUSE, "cissREQ", hz); 2641 cc = cr->cr_cc; 2642 2643 /* 2644 * Allocate an in-kernel databuffer if required, copy in user data. 2645 */ 2646 mtx_unlock(&sc->ciss_mtx); 2647 cr->cr_length = ioc->buf_size; 2648 if (ioc->buf_size > 0) { 2649 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 2650 error = ENOMEM; 2651 goto out_unlocked; 2652 } 2653 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) { 2654 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2655 goto out_unlocked; 2656 } 2657 } 2658 2659 /* 2660 * Build the request based on the user command. 2661 */ 2662 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address)); 2663 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb)); 2664 2665 /* XXX anything else to populate here? */ 2666 mtx_lock(&sc->ciss_mtx); 2667 2668 /* 2669 * Run the command. 2670 */ 2671 if ((error = ciss_synch_request(cr, 60 * 1000))) { 2672 debug(0, "request failed - %d", error); 2673 goto out; 2674 } 2675 2676 /* 2677 * Check to see if the command succeeded. 2678 */ 2679 ce = (struct ciss_error_info *)&(cc->sg[0]); 2680 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) == 0) 2681 bzero(ce, sizeof(*ce)); 2682 2683 /* 2684 * Copy the results back to the user. 2685 */ 2686 bcopy(ce, &ioc->error_info, sizeof(*ce)); 2687 mtx_unlock(&sc->ciss_mtx); 2688 if ((ioc->buf_size > 0) && 2689 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) { 2690 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2691 goto out_unlocked; 2692 } 2693 2694 /* done OK */ 2695 error = 0; 2696 2697 out_unlocked: 2698 mtx_lock(&sc->ciss_mtx); 2699 2700 out: 2701 if ((cr != NULL) && (cr->cr_data != NULL)) 2702 free(cr->cr_data, CISS_MALLOC_CLASS); 2703 if (cr != NULL) 2704 ciss_release_request(cr); 2705 return(error); 2706 } 2707 2708 /************************************************************************ 2709 * Map a request into bus-visible space, initialise the scatter/gather 2710 * list. 2711 */ 2712 static int 2713 ciss_map_request(struct ciss_request *cr) 2714 { 2715 struct ciss_softc *sc; 2716 int error = 0; 2717 2718 debug_called(2); 2719 2720 sc = cr->cr_sc; 2721 2722 /* check that mapping is necessary */ 2723 if (cr->cr_flags & CISS_REQ_MAPPED) 2724 return(0); 2725 2726 cr->cr_flags |= CISS_REQ_MAPPED; 2727 2728 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2729 BUS_DMASYNC_PREWRITE); 2730 2731 if (cr->cr_data != NULL) { 2732 if (cr->cr_flags & CISS_REQ_CCB) 2733 error = bus_dmamap_load_ccb(sc->ciss_buffer_dmat, 2734 cr->cr_datamap, cr->cr_data, 2735 ciss_request_map_helper, cr, 0); 2736 else 2737 error = bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, 2738 cr->cr_data, cr->cr_length, 2739 ciss_request_map_helper, cr, 0); 2740 if (error != 0) 2741 return (error); 2742 } else { 2743 /* 2744 * Post the command to the adapter. 2745 */ 2746 cr->cr_sg_tag = CISS_SG_NONE; 2747 cr->cr_flags |= CISS_REQ_BUSY; 2748 if (sc->ciss_perf) 2749 CISS_TL_PERF_POST_CMD(sc, cr); 2750 else 2751 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys); 2752 } 2753 2754 return(0); 2755 } 2756 2757 static void 2758 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2759 { 2760 struct ciss_command *cc; 2761 struct ciss_request *cr; 2762 struct ciss_softc *sc; 2763 int i; 2764 2765 debug_called(2); 2766 2767 cr = (struct ciss_request *)arg; 2768 sc = cr->cr_sc; 2769 cc = cr->cr_cc; 2770 2771 for (i = 0; i < nseg; i++) { 2772 cc->sg[i].address = segs[i].ds_addr; 2773 cc->sg[i].length = segs[i].ds_len; 2774 cc->sg[i].extension = 0; 2775 } 2776 /* we leave the s/g table entirely within the command */ 2777 cc->header.sg_in_list = nseg; 2778 cc->header.sg_total = nseg; 2779 2780 if (cr->cr_flags & CISS_REQ_DATAIN) 2781 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD); 2782 if (cr->cr_flags & CISS_REQ_DATAOUT) 2783 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE); 2784 2785 if (nseg == 0) 2786 cr->cr_sg_tag = CISS_SG_NONE; 2787 else if (nseg == 1) 2788 cr->cr_sg_tag = CISS_SG_1; 2789 else if (nseg == 2) 2790 cr->cr_sg_tag = CISS_SG_2; 2791 else if (nseg <= 4) 2792 cr->cr_sg_tag = CISS_SG_4; 2793 else if (nseg <= 8) 2794 cr->cr_sg_tag = CISS_SG_8; 2795 else if (nseg <= 16) 2796 cr->cr_sg_tag = CISS_SG_16; 2797 else if (nseg <= 32) 2798 cr->cr_sg_tag = CISS_SG_32; 2799 else 2800 cr->cr_sg_tag = CISS_SG_MAX; 2801 2802 /* 2803 * Post the command to the adapter. 2804 */ 2805 cr->cr_flags |= CISS_REQ_BUSY; 2806 if (sc->ciss_perf) 2807 CISS_TL_PERF_POST_CMD(sc, cr); 2808 else 2809 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys); 2810 } 2811 2812 /************************************************************************ 2813 * Unmap a request from bus-visible space. 2814 */ 2815 static void 2816 ciss_unmap_request(struct ciss_request *cr) 2817 { 2818 struct ciss_softc *sc; 2819 2820 debug_called(2); 2821 2822 sc = cr->cr_sc; 2823 2824 /* check that unmapping is necessary */ 2825 if ((cr->cr_flags & CISS_REQ_MAPPED) == 0) 2826 return; 2827 2828 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2829 BUS_DMASYNC_POSTWRITE); 2830 2831 if (cr->cr_data == NULL) 2832 goto out; 2833 2834 if (cr->cr_flags & CISS_REQ_DATAIN) 2835 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD); 2836 if (cr->cr_flags & CISS_REQ_DATAOUT) 2837 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE); 2838 2839 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap); 2840 out: 2841 cr->cr_flags &= ~CISS_REQ_MAPPED; 2842 } 2843 2844 /************************************************************************ 2845 * Attach the driver to CAM. 2846 * 2847 * We put all the logical drives on a single SCSI bus. 2848 */ 2849 static int 2850 ciss_cam_init(struct ciss_softc *sc) 2851 { 2852 int i, maxbus; 2853 2854 debug_called(1); 2855 2856 /* 2857 * Allocate a devq. We can reuse this for the masked physical 2858 * devices if we decide to export these as well. 2859 */ 2860 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests - 2)) == NULL) { 2861 ciss_printf(sc, "can't allocate CAM SIM queue\n"); 2862 return(ENOMEM); 2863 } 2864 2865 /* 2866 * Create a SIM. 2867 * 2868 * This naturally wastes a bit of memory. The alternative is to allocate 2869 * and register each bus as it is found, and then track them on a linked 2870 * list. Unfortunately, the driver has a few places where it needs to 2871 * look up the SIM based solely on bus number, and it's unclear whether 2872 * a list traversal would work for these situations. 2873 */ 2874 maxbus = max(sc->ciss_max_logical_bus, sc->ciss_max_physical_bus + 2875 CISS_PHYSICAL_BASE); 2876 sc->ciss_cam_sim = malloc(maxbus * sizeof(struct cam_sim*), 2877 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 2878 if (sc->ciss_cam_sim == NULL) { 2879 ciss_printf(sc, "can't allocate memory for controller SIM\n"); 2880 return(ENOMEM); 2881 } 2882 2883 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 2884 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2885 "ciss", sc, 2886 device_get_unit(sc->ciss_dev), 2887 &sc->ciss_mtx, 2888 2, 2889 sc->ciss_max_requests - 2, 2890 sc->ciss_cam_devq)) == NULL) { 2891 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2892 return(ENOMEM); 2893 } 2894 2895 /* 2896 * Register bus with this SIM. 2897 */ 2898 mtx_lock(&sc->ciss_mtx); 2899 if (i == 0 || sc->ciss_controllers[i].physical.bus != 0) { 2900 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) { 2901 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2902 mtx_unlock(&sc->ciss_mtx); 2903 return (ENXIO); 2904 } 2905 } 2906 mtx_unlock(&sc->ciss_mtx); 2907 } 2908 2909 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2910 CISS_PHYSICAL_BASE; i++) { 2911 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2912 "ciss", sc, 2913 device_get_unit(sc->ciss_dev), 2914 &sc->ciss_mtx, 1, 2915 sc->ciss_max_requests - 2, 2916 sc->ciss_cam_devq)) == NULL) { 2917 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2918 return (ENOMEM); 2919 } 2920 2921 mtx_lock(&sc->ciss_mtx); 2922 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) { 2923 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2924 mtx_unlock(&sc->ciss_mtx); 2925 return (ENXIO); 2926 } 2927 mtx_unlock(&sc->ciss_mtx); 2928 } 2929 2930 return(0); 2931 } 2932 2933 /************************************************************************ 2934 * Initiate a rescan of the 'logical devices' SIM 2935 */ 2936 static void 2937 ciss_cam_rescan_target(struct ciss_softc *sc, int bus, int target) 2938 { 2939 union ccb *ccb; 2940 2941 debug_called(1); 2942 2943 if ((ccb = xpt_alloc_ccb_nowait()) == NULL) { 2944 ciss_printf(sc, "rescan failed (can't allocate CCB)\n"); 2945 return; 2946 } 2947 2948 if (xpt_create_path(&ccb->ccb_h.path, NULL, 2949 cam_sim_path(sc->ciss_cam_sim[bus]), 2950 target, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 2951 ciss_printf(sc, "rescan failed (can't create path)\n"); 2952 xpt_free_ccb(ccb); 2953 return; 2954 } 2955 xpt_rescan(ccb); 2956 /* scan is now in progress */ 2957 } 2958 2959 /************************************************************************ 2960 * Handle requests coming from CAM 2961 */ 2962 static void 2963 ciss_cam_action(struct cam_sim *sim, union ccb *ccb) 2964 { 2965 struct ciss_softc *sc; 2966 struct ccb_scsiio *csio; 2967 int bus, target; 2968 int physical; 2969 2970 sc = cam_sim_softc(sim); 2971 bus = cam_sim_bus(sim); 2972 csio = (struct ccb_scsiio *)&ccb->csio; 2973 target = csio->ccb_h.target_id; 2974 physical = CISS_IS_PHYSICAL(bus); 2975 2976 switch (ccb->ccb_h.func_code) { 2977 2978 /* perform SCSI I/O */ 2979 case XPT_SCSI_IO: 2980 if (!ciss_cam_action_io(sim, csio)) 2981 return; 2982 break; 2983 2984 /* perform geometry calculations */ 2985 case XPT_CALC_GEOMETRY: 2986 { 2987 struct ccb_calc_geometry *ccg = &ccb->ccg; 2988 struct ciss_ldrive *ld; 2989 2990 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2991 2992 ld = NULL; 2993 if (!physical) 2994 ld = &sc->ciss_logical[bus][target]; 2995 2996 /* 2997 * Use the cached geometry settings unless the fault tolerance 2998 * is invalid. 2999 */ 3000 if (physical || ld->cl_geometry.fault_tolerance == 0xFF) { 3001 u_int32_t secs_per_cylinder; 3002 3003 ccg->heads = 255; 3004 ccg->secs_per_track = 32; 3005 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 3006 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 3007 } else { 3008 ccg->heads = ld->cl_geometry.heads; 3009 ccg->secs_per_track = ld->cl_geometry.sectors; 3010 ccg->cylinders = ntohs(ld->cl_geometry.cylinders); 3011 } 3012 ccb->ccb_h.status = CAM_REQ_CMP; 3013 break; 3014 } 3015 3016 /* handle path attribute inquiry */ 3017 case XPT_PATH_INQ: 3018 { 3019 struct ccb_pathinq *cpi = &ccb->cpi; 3020 int sg_length; 3021 3022 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 3023 3024 cpi->version_num = 1; 3025 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */ 3026 cpi->target_sprt = 0; 3027 cpi->hba_misc = 0; 3028 cpi->max_target = sc->ciss_cfg->max_logical_supported; 3029 cpi->max_lun = 0; /* 'logical drive' channel only */ 3030 cpi->initiator_id = sc->ciss_cfg->max_logical_supported; 3031 strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 3032 strlcpy(cpi->hba_vid, "CISS", HBA_IDLEN); 3033 strlcpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 3034 cpi->unit_number = cam_sim_unit(sim); 3035 cpi->bus_id = cam_sim_bus(sim); 3036 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */ 3037 cpi->transport = XPORT_SPI; 3038 cpi->transport_version = 2; 3039 cpi->protocol = PROTO_SCSI; 3040 cpi->protocol_version = SCSI_REV_2; 3041 if (sc->ciss_cfg->max_sg_length == 0) { 3042 sg_length = 17; 3043 } else { 3044 /* XXX Fix for ZMR cards that advertise max_sg_length == 32 3045 * Confusing bit here. max_sg_length is usually a power of 2. We always 3046 * need to subtract 1 to account for partial pages. Then we need to 3047 * align on a valid PAGE_SIZE so we round down to the nearest power of 2. 3048 * Add 1 so we can then subtract it out in the assignment to maxio. 3049 * The reason for all these shenanigans is to create a maxio value that 3050 * creates IO operations to volumes that yield consistent operations 3051 * with good performance. 3052 */ 3053 sg_length = sc->ciss_cfg->max_sg_length - 1; 3054 sg_length = (1 << (fls(sg_length) - 1)) + 1; 3055 } 3056 cpi->maxio = (min(CISS_MAX_SG_ELEMENTS, sg_length) - 1) * PAGE_SIZE; 3057 ccb->ccb_h.status = CAM_REQ_CMP; 3058 break; 3059 } 3060 3061 case XPT_GET_TRAN_SETTINGS: 3062 { 3063 struct ccb_trans_settings *cts = &ccb->cts; 3064 int bus, target; 3065 struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi; 3066 struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi; 3067 3068 bus = cam_sim_bus(sim); 3069 target = cts->ccb_h.target_id; 3070 3071 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target); 3072 /* disconnect always OK */ 3073 cts->protocol = PROTO_SCSI; 3074 cts->protocol_version = SCSI_REV_2; 3075 cts->transport = XPORT_SPI; 3076 cts->transport_version = 2; 3077 3078 spi->valid = CTS_SPI_VALID_DISC; 3079 spi->flags = CTS_SPI_FLAGS_DISC_ENB; 3080 3081 scsi->valid = CTS_SCSI_VALID_TQ; 3082 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB; 3083 3084 cts->ccb_h.status = CAM_REQ_CMP; 3085 break; 3086 } 3087 3088 default: /* we can't do this */ 3089 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code); 3090 ccb->ccb_h.status = CAM_REQ_INVALID; 3091 break; 3092 } 3093 3094 xpt_done(ccb); 3095 } 3096 3097 /************************************************************************ 3098 * Handle a CAM SCSI I/O request. 3099 */ 3100 static int 3101 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio) 3102 { 3103 struct ciss_softc *sc; 3104 int bus, target; 3105 struct ciss_request *cr; 3106 struct ciss_command *cc; 3107 int error; 3108 3109 sc = cam_sim_softc(sim); 3110 bus = cam_sim_bus(sim); 3111 target = csio->ccb_h.target_id; 3112 3113 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun); 3114 3115 /* check that the CDB pointer is not to a physical address */ 3116 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) { 3117 debug(3, " CDB pointer is to physical address"); 3118 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3119 } 3120 3121 /* abandon aborted ccbs or those that have failed validation */ 3122 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 3123 debug(3, "abandoning CCB due to abort/validation failure"); 3124 return(EINVAL); 3125 } 3126 3127 /* handle emulation of some SCSI commands ourself */ 3128 if (ciss_cam_emulate(sc, csio)) 3129 return(0); 3130 3131 /* 3132 * Get a request to manage this command. If we can't, return the 3133 * ccb, freeze the queue and flag so that we unfreeze it when a 3134 * request completes. 3135 */ 3136 if ((error = ciss_get_request(sc, &cr)) != 0) { 3137 xpt_freeze_simq(sim, 1); 3138 sc->ciss_flags |= CISS_FLAG_BUSY; 3139 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3140 return(error); 3141 } 3142 3143 /* 3144 * Build the command. 3145 */ 3146 cc = cr->cr_cc; 3147 cr->cr_data = csio; 3148 cr->cr_length = csio->dxfer_len; 3149 cr->cr_complete = ciss_cam_complete; 3150 cr->cr_private = csio; 3151 3152 /* 3153 * Target the right logical volume. 3154 */ 3155 if (CISS_IS_PHYSICAL(bus)) 3156 cc->header.address = 3157 sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_address; 3158 else 3159 cc->header.address = 3160 sc->ciss_logical[bus][target].cl_address; 3161 cc->cdb.cdb_length = csio->cdb_len; 3162 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3163 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */ 3164 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 3165 cr->cr_flags = CISS_REQ_DATAOUT | CISS_REQ_CCB; 3166 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3167 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 3168 cr->cr_flags = CISS_REQ_DATAIN | CISS_REQ_CCB; 3169 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3170 } else { 3171 cr->cr_data = NULL; 3172 cr->cr_flags = 0; 3173 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 3174 } 3175 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1; 3176 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 3177 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len); 3178 } else { 3179 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len); 3180 } 3181 3182 /* 3183 * Submit the request to the adapter. 3184 * 3185 * Note that this may fail if we're unable to map the request (and 3186 * if we ever learn a transport layer other than simple, may fail 3187 * if the adapter rejects the command). 3188 */ 3189 if ((error = ciss_start(cr)) != 0) { 3190 xpt_freeze_simq(sim, 1); 3191 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3192 if (error == EINPROGRESS) { 3193 error = 0; 3194 } else { 3195 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3196 ciss_release_request(cr); 3197 } 3198 return(error); 3199 } 3200 3201 return(0); 3202 } 3203 3204 /************************************************************************ 3205 * Emulate SCSI commands the adapter doesn't handle as we might like. 3206 */ 3207 static int 3208 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio) 3209 { 3210 int bus, target; 3211 u_int8_t opcode; 3212 3213 target = csio->ccb_h.target_id; 3214 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3215 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 3216 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]; 3217 3218 if (CISS_IS_PHYSICAL(bus)) { 3219 if (sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_online != 1) { 3220 csio->ccb_h.status |= CAM_SEL_TIMEOUT; 3221 xpt_done((union ccb *)csio); 3222 return(1); 3223 } else 3224 return(0); 3225 } 3226 3227 /* 3228 * Handle requests for volumes that don't exist or are not online. 3229 * A selection timeout is slightly better than an illegal request. 3230 * Other errors might be better. 3231 */ 3232 if (sc->ciss_logical[bus][target].cl_status != CISS_LD_ONLINE) { 3233 csio->ccb_h.status |= CAM_SEL_TIMEOUT; 3234 xpt_done((union ccb *)csio); 3235 return(1); 3236 } 3237 3238 /* if we have to fake Synchronise Cache */ 3239 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) { 3240 /* 3241 * If this is a Synchronise Cache command, typically issued when 3242 * a device is closed, flush the adapter and complete now. 3243 */ 3244 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 3245 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) { 3246 ciss_flush_adapter(sc); 3247 csio->ccb_h.status |= CAM_REQ_CMP; 3248 xpt_done((union ccb *)csio); 3249 return(1); 3250 } 3251 } 3252 3253 /* 3254 * A CISS target can only ever have one lun per target. REPORT_LUNS requires 3255 * at least one LUN field to be pre created for us, so snag it and fill in 3256 * the least significant byte indicating 1 LUN here. Emulate the command 3257 * return to shut up warning on console of a CDB error. swb 3258 */ 3259 if (opcode == REPORT_LUNS && csio->dxfer_len > 0) { 3260 csio->data_ptr[3] = 8; 3261 csio->ccb_h.status |= CAM_REQ_CMP; 3262 xpt_done((union ccb *)csio); 3263 return(1); 3264 } 3265 3266 return(0); 3267 } 3268 3269 /************************************************************************ 3270 * Check for possibly-completed commands. 3271 */ 3272 static void 3273 ciss_cam_poll(struct cam_sim *sim) 3274 { 3275 cr_qhead_t qh; 3276 struct ciss_softc *sc = cam_sim_softc(sim); 3277 3278 debug_called(2); 3279 3280 STAILQ_INIT(&qh); 3281 if (sc->ciss_perf) 3282 ciss_perf_done(sc, &qh); 3283 else 3284 ciss_done(sc, &qh); 3285 ciss_complete(sc, &qh); 3286 } 3287 3288 /************************************************************************ 3289 * Handle completion of a command - pass results back through the CCB 3290 */ 3291 static void 3292 ciss_cam_complete(struct ciss_request *cr) 3293 { 3294 struct ciss_softc *sc; 3295 struct ciss_command *cc; 3296 struct ciss_error_info *ce; 3297 struct ccb_scsiio *csio; 3298 int scsi_status; 3299 int command_status; 3300 3301 debug_called(2); 3302 3303 sc = cr->cr_sc; 3304 cc = cr->cr_cc; 3305 ce = (struct ciss_error_info *)&(cc->sg[0]); 3306 csio = (struct ccb_scsiio *)cr->cr_private; 3307 3308 /* 3309 * Extract status values from request. 3310 */ 3311 ciss_report_request(cr, &command_status, &scsi_status); 3312 csio->scsi_status = scsi_status; 3313 3314 /* 3315 * Handle specific SCSI status values. 3316 */ 3317 switch(scsi_status) { 3318 /* no status due to adapter error */ 3319 case -1: 3320 debug(0, "adapter error"); 3321 csio->ccb_h.status |= CAM_REQ_CMP_ERR; 3322 break; 3323 3324 /* no status due to command completed OK */ 3325 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */ 3326 debug(2, "SCSI_STATUS_OK"); 3327 csio->ccb_h.status |= CAM_REQ_CMP; 3328 break; 3329 3330 /* check condition, sense data included */ 3331 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */ 3332 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d\n", 3333 ce->sense_length, ce->residual_count); 3334 bzero(&csio->sense_data, SSD_FULL_SIZE); 3335 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length); 3336 if (csio->sense_len > ce->sense_length) 3337 csio->sense_resid = csio->sense_len - ce->sense_length; 3338 else 3339 csio->sense_resid = 0; 3340 csio->resid = ce->residual_count; 3341 csio->ccb_h.status |= CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 3342 #ifdef CISS_DEBUG 3343 { 3344 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0]; 3345 debug(0, "sense key %x", scsi_get_sense_key(sns, csio->sense_len - 3346 csio->sense_resid, /*show_errors*/ 1)); 3347 } 3348 #endif 3349 break; 3350 3351 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */ 3352 debug(0, "SCSI_STATUS_BUSY"); 3353 csio->ccb_h.status |= CAM_SCSI_BUSY; 3354 break; 3355 3356 default: 3357 debug(0, "unknown status 0x%x", csio->scsi_status); 3358 csio->ccb_h.status |= CAM_REQ_CMP_ERR; 3359 break; 3360 } 3361 3362 /* handle post-command fixup */ 3363 ciss_cam_complete_fixup(sc, csio); 3364 3365 ciss_release_request(cr); 3366 if (sc->ciss_flags & CISS_FLAG_BUSY) { 3367 sc->ciss_flags &= ~CISS_FLAG_BUSY; 3368 if (csio->ccb_h.status & CAM_RELEASE_SIMQ) 3369 xpt_release_simq(xpt_path_sim(csio->ccb_h.path), 0); 3370 else 3371 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3372 } 3373 xpt_done((union ccb *)csio); 3374 } 3375 3376 /******************************************************************************** 3377 * Fix up the result of some commands here. 3378 */ 3379 static void 3380 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio) 3381 { 3382 struct scsi_inquiry_data *inq; 3383 struct ciss_ldrive *cl; 3384 uint8_t *cdb; 3385 int bus, target; 3386 3387 cdb = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 3388 (uint8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes; 3389 if (cdb[0] == INQUIRY && 3390 (cdb[1] & SI_EVPD) == 0 && 3391 (csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN && 3392 csio->dxfer_len >= SHORT_INQUIRY_LENGTH) { 3393 3394 inq = (struct scsi_inquiry_data *)csio->data_ptr; 3395 target = csio->ccb_h.target_id; 3396 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3397 3398 /* 3399 * If the controller is in JBOD mode, there are no logical volumes. 3400 * Let the disks be probed and dealt with via CAM. Else, mask off 3401 * the physical disks and setup the parts of the inq structure for 3402 * the logical volume. swb 3403 */ 3404 if( !(sc->ciss_id->PowerUPNvramFlags & PWR_UP_FLAG_JBOD_ENABLED)){ 3405 if (CISS_IS_PHYSICAL(bus)) { 3406 if (SID_TYPE(inq) == T_DIRECT) 3407 inq->device = (inq->device & 0xe0) | T_NODEVICE; 3408 return; 3409 } 3410 cl = &sc->ciss_logical[bus][target]; 3411 3412 padstr(inq->vendor, "HP", 3413 SID_VENDOR_SIZE); 3414 padstr(inq->product, 3415 ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 3416 SID_PRODUCT_SIZE); 3417 padstr(inq->revision, 3418 ciss_name_ldrive_status(cl->cl_lstatus->status), 3419 SID_REVISION_SIZE); 3420 } 3421 } 3422 } 3423 3424 3425 /******************************************************************************** 3426 * Name the device at (target) 3427 * 3428 * XXX is this strictly correct? 3429 */ 3430 static int 3431 ciss_name_device(struct ciss_softc *sc, int bus, int target) 3432 { 3433 struct cam_periph *periph; 3434 struct cam_path *path; 3435 int status; 3436 3437 if (CISS_IS_PHYSICAL(bus)) 3438 return (0); 3439 3440 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim[bus]), 3441 target, 0); 3442 3443 if (status == CAM_REQ_CMP) { 3444 xpt_path_lock(path); 3445 periph = cam_periph_find(path, NULL); 3446 xpt_path_unlock(path); 3447 xpt_free_path(path); 3448 if (periph != NULL) { 3449 sprintf(sc->ciss_logical[bus][target].cl_name, "%s%d", 3450 periph->periph_name, periph->unit_number); 3451 return(0); 3452 } 3453 } 3454 sc->ciss_logical[bus][target].cl_name[0] = 0; 3455 return(ENOENT); 3456 } 3457 3458 /************************************************************************ 3459 * Periodic status monitoring. 3460 */ 3461 static void 3462 ciss_periodic(void *arg) 3463 { 3464 struct ciss_softc *sc; 3465 struct ciss_request *cr = NULL; 3466 struct ciss_command *cc = NULL; 3467 int error = 0; 3468 3469 debug_called(1); 3470 3471 sc = (struct ciss_softc *)arg; 3472 3473 /* 3474 * Check the adapter heartbeat. 3475 */ 3476 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) { 3477 sc->ciss_heart_attack++; 3478 debug(0, "adapter heart attack in progress 0x%x/%d", 3479 sc->ciss_heartbeat, sc->ciss_heart_attack); 3480 if (sc->ciss_heart_attack == 3) { 3481 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n"); 3482 ciss_disable_adapter(sc); 3483 return; 3484 } 3485 } else { 3486 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat; 3487 sc->ciss_heart_attack = 0; 3488 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat); 3489 } 3490 3491 /* 3492 * Send the NOP message and wait for a response. 3493 */ 3494 if (ciss_nop_message_heartbeat != 0 && (error = ciss_get_request(sc, &cr)) == 0) { 3495 cc = cr->cr_cc; 3496 cr->cr_complete = ciss_nop_complete; 3497 cc->cdb.cdb_length = 1; 3498 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 3499 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3500 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3501 cc->cdb.timeout = 0; 3502 cc->cdb.cdb[0] = CISS_OPCODE_MESSAGE_NOP; 3503 3504 if ((error = ciss_start(cr)) != 0) { 3505 ciss_printf(sc, "SENDING NOP MESSAGE FAILED\n"); 3506 } 3507 } 3508 3509 /* 3510 * If the notify event request has died for some reason, or has 3511 * not started yet, restart it. 3512 */ 3513 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) { 3514 debug(0, "(re)starting Event Notify chain"); 3515 ciss_notify_event(sc); 3516 } 3517 3518 /* 3519 * Reschedule. 3520 */ 3521 callout_reset(&sc->ciss_periodic, CISS_HEARTBEAT_RATE * hz, ciss_periodic, sc); 3522 } 3523 3524 static void 3525 ciss_nop_complete(struct ciss_request *cr) 3526 { 3527 struct ciss_softc *sc; 3528 static int first_time = 1; 3529 3530 sc = cr->cr_sc; 3531 if (ciss_report_request(cr, NULL, NULL) != 0) { 3532 if (first_time == 1) { 3533 first_time = 0; 3534 ciss_printf(sc, "SENDING NOP MESSAGE FAILED (not logging anymore)\n"); 3535 } 3536 } 3537 3538 ciss_release_request(cr); 3539 } 3540 3541 /************************************************************************ 3542 * Disable the adapter. 3543 * 3544 * The all requests in completed queue is failed with hardware error. 3545 * This will cause failover in a multipath configuration. 3546 */ 3547 static void 3548 ciss_disable_adapter(struct ciss_softc *sc) 3549 { 3550 cr_qhead_t qh; 3551 struct ciss_request *cr; 3552 struct ciss_command *cc; 3553 struct ciss_error_info *ce; 3554 int i; 3555 3556 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 3557 pci_disable_busmaster(sc->ciss_dev); 3558 sc->ciss_flags &= ~CISS_FLAG_RUNNING; 3559 3560 for (i = 1; i < sc->ciss_max_requests; i++) { 3561 cr = &sc->ciss_request[i]; 3562 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 3563 continue; 3564 3565 cc = cr->cr_cc; 3566 ce = (struct ciss_error_info *)&(cc->sg[0]); 3567 ce->command_status = CISS_CMD_STATUS_HARDWARE_ERROR; 3568 ciss_enqueue_complete(cr, &qh); 3569 } 3570 3571 for (;;) { 3572 if ((cr = ciss_dequeue_complete(sc, &qh)) == NULL) 3573 break; 3574 3575 /* 3576 * If the request has a callback, invoke it. 3577 */ 3578 if (cr->cr_complete != NULL) { 3579 cr->cr_complete(cr); 3580 continue; 3581 } 3582 3583 /* 3584 * If someone is sleeping on this request, wake them up. 3585 */ 3586 if (cr->cr_flags & CISS_REQ_SLEEP) { 3587 cr->cr_flags &= ~CISS_REQ_SLEEP; 3588 wakeup(cr); 3589 continue; 3590 } 3591 } 3592 } 3593 3594 /************************************************************************ 3595 * Request a notification response from the adapter. 3596 * 3597 * If (cr) is NULL, this is the first request of the adapter, so 3598 * reset the adapter's message pointer and start with the oldest 3599 * message available. 3600 */ 3601 static void 3602 ciss_notify_event(struct ciss_softc *sc) 3603 { 3604 struct ciss_request *cr; 3605 struct ciss_command *cc; 3606 struct ciss_notify_cdb *cnc; 3607 int error; 3608 3609 debug_called(1); 3610 3611 cr = sc->ciss_periodic_notify; 3612 3613 /* get a request if we don't already have one */ 3614 if (cr == NULL) { 3615 if ((error = ciss_get_request(sc, &cr)) != 0) { 3616 debug(0, "can't get notify event request"); 3617 goto out; 3618 } 3619 sc->ciss_periodic_notify = cr; 3620 cr->cr_complete = ciss_notify_complete; 3621 debug(1, "acquired request %d", cr->cr_tag); 3622 } 3623 3624 /* 3625 * Get a databuffer if we don't already have one, note that the 3626 * adapter command wants a larger buffer than the actual 3627 * structure. 3628 */ 3629 if (cr->cr_data == NULL) { 3630 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3631 debug(0, "can't get notify event request buffer"); 3632 error = ENOMEM; 3633 goto out; 3634 } 3635 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3636 } 3637 3638 /* re-setup the request's command (since we never release it) XXX overkill*/ 3639 ciss_preen_command(cr); 3640 3641 /* (re)build the notify event command */ 3642 cc = cr->cr_cc; 3643 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3644 cc->header.address.physical.bus = 0; 3645 cc->header.address.physical.target = 0; 3646 3647 cc->cdb.cdb_length = sizeof(*cnc); 3648 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3649 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3650 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3651 cc->cdb.timeout = 0; /* no timeout, we hope */ 3652 3653 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3654 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE); 3655 cnc->opcode = CISS_OPCODE_READ; 3656 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT; 3657 cnc->timeout = 0; /* no timeout, we hope */ 3658 cnc->synchronous = 0; 3659 cnc->ordered = 0; 3660 cnc->seek_to_oldest = 0; 3661 if ((sc->ciss_flags & CISS_FLAG_RUNNING) == 0) 3662 cnc->new_only = 1; 3663 else 3664 cnc->new_only = 0; 3665 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3666 3667 /* submit the request */ 3668 error = ciss_start(cr); 3669 3670 out: 3671 if (error) { 3672 if (cr != NULL) { 3673 if (cr->cr_data != NULL) 3674 free(cr->cr_data, CISS_MALLOC_CLASS); 3675 ciss_release_request(cr); 3676 } 3677 sc->ciss_periodic_notify = NULL; 3678 debug(0, "can't submit notify event request"); 3679 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3680 } else { 3681 debug(1, "notify event submitted"); 3682 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK; 3683 } 3684 } 3685 3686 static void 3687 ciss_notify_complete(struct ciss_request *cr) 3688 { 3689 struct ciss_command *cc; 3690 struct ciss_notify *cn; 3691 struct ciss_softc *sc; 3692 int scsi_status; 3693 int command_status; 3694 debug_called(1); 3695 3696 cc = cr->cr_cc; 3697 cn = (struct ciss_notify *)cr->cr_data; 3698 sc = cr->cr_sc; 3699 3700 /* 3701 * Report request results, decode status. 3702 */ 3703 ciss_report_request(cr, &command_status, &scsi_status); 3704 3705 /* 3706 * Abort the chain on a fatal error. 3707 * 3708 * XXX which of these are actually errors? 3709 */ 3710 if ((command_status != CISS_CMD_STATUS_SUCCESS) && 3711 (command_status != CISS_CMD_STATUS_TARGET_STATUS) && 3712 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */ 3713 ciss_printf(sc, "fatal error in Notify Event request (%s)\n", 3714 ciss_name_command_status(command_status)); 3715 ciss_release_request(cr); 3716 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3717 return; 3718 } 3719 3720 /* 3721 * If the adapter gave us a text message, print it. 3722 */ 3723 if (cn->message[0] != 0) 3724 ciss_printf(sc, "*** %.80s\n", cn->message); 3725 3726 debug(0, "notify event class %d subclass %d detail %d", 3727 cn->class, cn->subclass, cn->detail); 3728 3729 /* 3730 * If the response indicates that the notifier has been aborted, 3731 * release the notifier command. 3732 */ 3733 if ((cn->class == CISS_NOTIFY_NOTIFIER) && 3734 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) && 3735 (cn->detail == 1)) { 3736 debug(0, "notifier exiting"); 3737 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3738 ciss_release_request(cr); 3739 sc->ciss_periodic_notify = NULL; 3740 wakeup(&sc->ciss_periodic_notify); 3741 } else { 3742 /* Handle notify events in a kernel thread */ 3743 ciss_enqueue_notify(cr); 3744 sc->ciss_periodic_notify = NULL; 3745 wakeup(&sc->ciss_periodic_notify); 3746 wakeup(&sc->ciss_notify); 3747 } 3748 /* 3749 * Send a new notify event command, if we're not aborting. 3750 */ 3751 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) { 3752 ciss_notify_event(sc); 3753 } 3754 } 3755 3756 /************************************************************************ 3757 * Abort the Notify Event chain. 3758 * 3759 * Note that we can't just abort the command in progress; we have to 3760 * explicitly issue an Abort Notify Event command in order for the 3761 * adapter to clean up correctly. 3762 * 3763 * If we are called with CISS_FLAG_ABORTING set in the adapter softc, 3764 * the chain will not restart itself. 3765 */ 3766 static int 3767 ciss_notify_abort(struct ciss_softc *sc) 3768 { 3769 struct ciss_request *cr; 3770 struct ciss_command *cc; 3771 struct ciss_notify_cdb *cnc; 3772 int error, command_status, scsi_status; 3773 3774 debug_called(1); 3775 3776 cr = NULL; 3777 error = 0; 3778 3779 /* verify that there's an outstanding command */ 3780 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3781 goto out; 3782 3783 /* get a command to issue the abort with */ 3784 if ((error = ciss_get_request(sc, &cr))) 3785 goto out; 3786 3787 /* get a buffer for the result */ 3788 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3789 debug(0, "can't get notify event request buffer"); 3790 error = ENOMEM; 3791 goto out; 3792 } 3793 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3794 3795 /* build the CDB */ 3796 cc = cr->cr_cc; 3797 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3798 cc->header.address.physical.bus = 0; 3799 cc->header.address.physical.target = 0; 3800 cc->cdb.cdb_length = sizeof(*cnc); 3801 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3802 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3803 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3804 cc->cdb.timeout = 0; /* no timeout, we hope */ 3805 3806 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3807 bzero(cnc, sizeof(*cnc)); 3808 cnc->opcode = CISS_OPCODE_WRITE; 3809 cnc->command = CISS_COMMAND_ABORT_NOTIFY; 3810 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3811 3812 ciss_print_request(cr); 3813 3814 /* 3815 * Submit the request and wait for it to complete. 3816 */ 3817 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3818 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error); 3819 goto out; 3820 } 3821 3822 /* 3823 * Check response. 3824 */ 3825 ciss_report_request(cr, &command_status, &scsi_status); 3826 switch(command_status) { 3827 case CISS_CMD_STATUS_SUCCESS: 3828 break; 3829 case CISS_CMD_STATUS_INVALID_COMMAND: 3830 /* 3831 * Some older adapters don't support the CISS version of this 3832 * command. Fall back to using the BMIC version. 3833 */ 3834 error = ciss_notify_abort_bmic(sc); 3835 if (error != 0) 3836 goto out; 3837 break; 3838 3839 case CISS_CMD_STATUS_TARGET_STATUS: 3840 /* 3841 * This can happen if the adapter thinks there wasn't an outstanding 3842 * Notify Event command but we did. We clean up here. 3843 */ 3844 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) { 3845 if (sc->ciss_periodic_notify != NULL) 3846 ciss_release_request(sc->ciss_periodic_notify); 3847 error = 0; 3848 goto out; 3849 } 3850 /* FALLTHROUGH */ 3851 3852 default: 3853 ciss_printf(sc, "Abort Notify Event command failed (%s)\n", 3854 ciss_name_command_status(command_status)); 3855 error = EIO; 3856 goto out; 3857 } 3858 3859 /* 3860 * Sleep waiting for the notifier command to complete. Note 3861 * that if it doesn't, we may end up in a bad situation, since 3862 * the adapter may deliver it later. Also note that the adapter 3863 * requires the Notify Event command to be cancelled in order to 3864 * maintain internal bookkeeping. 3865 */ 3866 while (sc->ciss_periodic_notify != NULL) { 3867 error = msleep(&sc->ciss_periodic_notify, &sc->ciss_mtx, PRIBIO, "cissNEA", hz * 5); 3868 if (error == EWOULDBLOCK) { 3869 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n"); 3870 break; 3871 } 3872 } 3873 3874 out: 3875 /* release the cancel request */ 3876 if (cr != NULL) { 3877 if (cr->cr_data != NULL) 3878 free(cr->cr_data, CISS_MALLOC_CLASS); 3879 ciss_release_request(cr); 3880 } 3881 if (error == 0) 3882 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3883 return(error); 3884 } 3885 3886 /************************************************************************ 3887 * Abort the Notify Event chain using a BMIC command. 3888 */ 3889 static int 3890 ciss_notify_abort_bmic(struct ciss_softc *sc) 3891 { 3892 struct ciss_request *cr; 3893 int error, command_status; 3894 3895 debug_called(1); 3896 3897 cr = NULL; 3898 error = 0; 3899 3900 /* verify that there's an outstanding command */ 3901 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3902 goto out; 3903 3904 /* 3905 * Build a BMIC command to cancel the Notify on Event command. 3906 * 3907 * Note that we are sending a CISS opcode here. Odd. 3908 */ 3909 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY, 3910 NULL, 0)) != 0) 3911 goto out; 3912 3913 /* 3914 * Submit the request and wait for it to complete. 3915 */ 3916 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3917 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error); 3918 goto out; 3919 } 3920 3921 /* 3922 * Check response. 3923 */ 3924 ciss_report_request(cr, &command_status, NULL); 3925 switch(command_status) { 3926 case CISS_CMD_STATUS_SUCCESS: 3927 break; 3928 default: 3929 ciss_printf(sc, "error cancelling Notify on Event (%s)\n", 3930 ciss_name_command_status(command_status)); 3931 error = EIO; 3932 goto out; 3933 } 3934 3935 out: 3936 if (cr != NULL) 3937 ciss_release_request(cr); 3938 return(error); 3939 } 3940 3941 /************************************************************************ 3942 * Handle rescanning all the logical volumes when a notify event 3943 * causes the drives to come online or offline. 3944 */ 3945 static void 3946 ciss_notify_rescan_logical(struct ciss_softc *sc) 3947 { 3948 struct ciss_lun_report *cll; 3949 struct ciss_ldrive *ld; 3950 int i, j, ndrives; 3951 3952 /* 3953 * We must rescan all logical volumes to get the right logical 3954 * drive address. 3955 */ 3956 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 3957 sc->ciss_cfg->max_logical_supported); 3958 if (cll == NULL) 3959 return; 3960 3961 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 3962 3963 /* 3964 * Delete any of the drives which were destroyed by the 3965 * firmware. 3966 */ 3967 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 3968 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) { 3969 ld = &sc->ciss_logical[i][j]; 3970 3971 if (ld->cl_update == 0) 3972 continue; 3973 3974 if (ld->cl_status != CISS_LD_ONLINE) { 3975 ciss_cam_rescan_target(sc, i, j); 3976 ld->cl_update = 0; 3977 if (ld->cl_ldrive) 3978 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 3979 if (ld->cl_lstatus) 3980 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 3981 3982 ld->cl_ldrive = NULL; 3983 ld->cl_lstatus = NULL; 3984 } 3985 } 3986 } 3987 3988 /* 3989 * Scan for new drives. 3990 */ 3991 for (i = 0; i < ndrives; i++) { 3992 int bus, target; 3993 3994 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 3995 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 3996 ld = &sc->ciss_logical[bus][target]; 3997 3998 if (ld->cl_update == 0) 3999 continue; 4000 4001 ld->cl_update = 0; 4002 ld->cl_address = cll->lun[i]; 4003 ld->cl_controller = &sc->ciss_controllers[bus]; 4004 if (ciss_identify_logical(sc, ld) == 0) { 4005 ciss_cam_rescan_target(sc, bus, target); 4006 } 4007 } 4008 free(cll, CISS_MALLOC_CLASS); 4009 } 4010 4011 /************************************************************************ 4012 * Handle a notify event relating to the status of a logical drive. 4013 * 4014 * XXX need to be able to defer some of these to properly handle 4015 * calling the "ID Physical drive" command, unless the 'extended' 4016 * drive IDs are always in BIG_MAP format. 4017 */ 4018 static void 4019 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn) 4020 { 4021 struct ciss_ldrive *ld; 4022 int ostatus, bus, target; 4023 4024 debug_called(2); 4025 4026 bus = cn->device.physical.bus; 4027 target = cn->data.logical_status.logical_drive; 4028 ld = &sc->ciss_logical[bus][target]; 4029 4030 switch (cn->subclass) { 4031 case CISS_NOTIFY_LOGICAL_STATUS: 4032 switch (cn->detail) { 4033 case 0: 4034 ciss_name_device(sc, bus, target); 4035 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n", 4036 cn->data.logical_status.logical_drive, ld->cl_name, 4037 ciss_name_ldrive_status(cn->data.logical_status.previous_state), 4038 ciss_name_ldrive_status(cn->data.logical_status.new_state), 4039 cn->data.logical_status.spare_state, 4040 "\20\1configured\2rebuilding\3failed\4in use\5available\n"); 4041 4042 /* 4043 * Update our idea of the drive's status. 4044 */ 4045 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state); 4046 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 4047 if (ld->cl_lstatus != NULL) 4048 ld->cl_lstatus->status = cn->data.logical_status.new_state; 4049 4050 /* 4051 * Have CAM rescan the drive if its status has changed. 4052 */ 4053 if (ostatus != ld->cl_status) { 4054 ld->cl_update = 1; 4055 ciss_notify_rescan_logical(sc); 4056 } 4057 4058 break; 4059 4060 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */ 4061 ciss_name_device(sc, bus, target); 4062 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n", 4063 cn->data.logical_status.logical_drive, ld->cl_name); 4064 ciss_accept_media(sc, ld); 4065 4066 ld->cl_update = 1; 4067 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 4068 ciss_notify_rescan_logical(sc); 4069 break; 4070 4071 case 2: 4072 case 3: 4073 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n", 4074 cn->data.rebuild_aborted.logical_drive, 4075 ld->cl_name, 4076 (cn->detail == 2) ? "read" : "write"); 4077 break; 4078 } 4079 break; 4080 4081 case CISS_NOTIFY_LOGICAL_ERROR: 4082 if (cn->detail == 0) { 4083 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n", 4084 cn->data.io_error.logical_drive, 4085 ld->cl_name, 4086 cn->data.io_error.failure_bus, 4087 cn->data.io_error.failure_drive); 4088 /* XXX should we take the drive down at this point, or will we be told? */ 4089 } 4090 break; 4091 4092 case CISS_NOTIFY_LOGICAL_SURFACE: 4093 if (cn->detail == 0) 4094 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n", 4095 cn->data.consistency_completed.logical_drive, 4096 ld->cl_name); 4097 break; 4098 } 4099 } 4100 4101 /************************************************************************ 4102 * Handle a notify event relating to the status of a physical drive. 4103 */ 4104 static void 4105 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn) 4106 { 4107 } 4108 4109 /************************************************************************ 4110 * Handle a notify event relating to the status of a physical drive. 4111 */ 4112 static void 4113 ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn) 4114 { 4115 struct ciss_lun_report *cll = NULL; 4116 int bus, target; 4117 4118 switch (cn->subclass) { 4119 case CISS_NOTIFY_HOTPLUG_PHYSICAL: 4120 case CISS_NOTIFY_HOTPLUG_NONDISK: 4121 bus = CISS_BIG_MAP_BUS(sc, cn->data.drive.big_physical_drive_number); 4122 target = 4123 CISS_BIG_MAP_TARGET(sc, cn->data.drive.big_physical_drive_number); 4124 4125 if (cn->detail == 0) { 4126 /* 4127 * Mark the device offline so that it'll start producing selection 4128 * timeouts to the upper layer. 4129 */ 4130 if ((bus >= 0) && (target >= 0)) 4131 sc->ciss_physical[bus][target].cp_online = 0; 4132 } else { 4133 /* 4134 * Rescan the physical lun list for new items 4135 */ 4136 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 4137 sc->ciss_cfg->max_physical_supported); 4138 if (cll == NULL) { 4139 ciss_printf(sc, "Warning, cannot get physical lun list\n"); 4140 break; 4141 } 4142 ciss_filter_physical(sc, cll); 4143 } 4144 break; 4145 4146 default: 4147 ciss_printf(sc, "Unknown hotplug event %d\n", cn->subclass); 4148 return; 4149 } 4150 4151 if (cll != NULL) 4152 free(cll, CISS_MALLOC_CLASS); 4153 } 4154 4155 /************************************************************************ 4156 * Handle deferred processing of notify events. Notify events may need 4157 * sleep which is unsafe during an interrupt. 4158 */ 4159 static void 4160 ciss_notify_thread(void *arg) 4161 { 4162 struct ciss_softc *sc; 4163 struct ciss_request *cr; 4164 struct ciss_notify *cn; 4165 4166 sc = (struct ciss_softc *)arg; 4167 mtx_lock(&sc->ciss_mtx); 4168 4169 for (;;) { 4170 if (STAILQ_EMPTY(&sc->ciss_notify) != 0 && 4171 (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) == 0) { 4172 msleep(&sc->ciss_notify, &sc->ciss_mtx, PUSER, "idle", 0); 4173 } 4174 4175 if (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) 4176 break; 4177 4178 cr = ciss_dequeue_notify(sc); 4179 4180 if (cr == NULL) 4181 panic("cr null"); 4182 cn = (struct ciss_notify *)cr->cr_data; 4183 4184 switch (cn->class) { 4185 case CISS_NOTIFY_HOTPLUG: 4186 ciss_notify_hotplug(sc, cn); 4187 break; 4188 case CISS_NOTIFY_LOGICAL: 4189 ciss_notify_logical(sc, cn); 4190 break; 4191 case CISS_NOTIFY_PHYSICAL: 4192 ciss_notify_physical(sc, cn); 4193 break; 4194 } 4195 4196 ciss_release_request(cr); 4197 4198 } 4199 sc->ciss_notify_thread = NULL; 4200 wakeup(&sc->ciss_notify_thread); 4201 4202 mtx_unlock(&sc->ciss_mtx); 4203 kproc_exit(0); 4204 } 4205 4206 /************************************************************************ 4207 * Start the notification kernel thread. 4208 */ 4209 static void 4210 ciss_spawn_notify_thread(struct ciss_softc *sc) 4211 { 4212 4213 if (kproc_create((void(*)(void *))ciss_notify_thread, sc, 4214 &sc->ciss_notify_thread, 0, 0, "ciss_notify%d", 4215 device_get_unit(sc->ciss_dev))) 4216 panic("Could not create notify thread\n"); 4217 } 4218 4219 /************************************************************************ 4220 * Kill the notification kernel thread. 4221 */ 4222 static void 4223 ciss_kill_notify_thread(struct ciss_softc *sc) 4224 { 4225 4226 if (sc->ciss_notify_thread == NULL) 4227 return; 4228 4229 sc->ciss_flags |= CISS_FLAG_THREAD_SHUT; 4230 wakeup(&sc->ciss_notify); 4231 msleep(&sc->ciss_notify_thread, &sc->ciss_mtx, PUSER, "thtrm", 0); 4232 } 4233 4234 /************************************************************************ 4235 * Print a request. 4236 */ 4237 static void 4238 ciss_print_request(struct ciss_request *cr) 4239 { 4240 struct ciss_softc *sc; 4241 struct ciss_command *cc; 4242 int i; 4243 4244 sc = cr->cr_sc; 4245 cc = cr->cr_cc; 4246 4247 ciss_printf(sc, "REQUEST @ %p\n", cr); 4248 ciss_printf(sc, " data %p/%d tag %d flags %b\n", 4249 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags, 4250 "\20\1mapped\2sleep\3poll\4dataout\5datain\n"); 4251 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n", 4252 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag); 4253 switch(cc->header.address.mode.mode) { 4254 case CISS_HDR_ADDRESS_MODE_PERIPHERAL: 4255 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL: 4256 ciss_printf(sc, " physical bus %d target %d\n", 4257 cc->header.address.physical.bus, cc->header.address.physical.target); 4258 break; 4259 case CISS_HDR_ADDRESS_MODE_LOGICAL: 4260 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun); 4261 break; 4262 } 4263 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n", 4264 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" : 4265 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" : 4266 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??", 4267 cc->cdb.cdb_length, 4268 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" : 4269 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??", 4270 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" : 4271 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" : 4272 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" : 4273 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" : 4274 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??"); 4275 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " "); 4276 4277 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) { 4278 /* XXX print error info */ 4279 } else { 4280 /* since we don't use chained s/g, don't support it here */ 4281 for (i = 0; i < cc->header.sg_in_list; i++) { 4282 if ((i % 4) == 0) 4283 ciss_printf(sc, " "); 4284 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length); 4285 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1))) 4286 printf("\n"); 4287 } 4288 } 4289 } 4290 4291 /************************************************************************ 4292 * Print information about the status of a logical drive. 4293 */ 4294 static void 4295 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld) 4296 { 4297 int bus, target, i; 4298 4299 if (ld->cl_lstatus == NULL) { 4300 printf("does not exist\n"); 4301 return; 4302 } 4303 4304 /* print drive status */ 4305 switch(ld->cl_lstatus->status) { 4306 case CISS_LSTATUS_OK: 4307 printf("online\n"); 4308 break; 4309 case CISS_LSTATUS_INTERIM_RECOVERY: 4310 printf("in interim recovery mode\n"); 4311 break; 4312 case CISS_LSTATUS_READY_RECOVERY: 4313 printf("ready to begin recovery\n"); 4314 break; 4315 case CISS_LSTATUS_RECOVERING: 4316 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4317 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4318 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n", 4319 bus, target, ld->cl_lstatus->blocks_to_recover); 4320 break; 4321 case CISS_LSTATUS_EXPANDING: 4322 printf("being expanded, %u blocks remaining\n", 4323 ld->cl_lstatus->blocks_to_recover); 4324 break; 4325 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4326 printf("queued for expansion\n"); 4327 break; 4328 case CISS_LSTATUS_FAILED: 4329 printf("queued for expansion\n"); 4330 break; 4331 case CISS_LSTATUS_WRONG_PDRIVE: 4332 printf("wrong physical drive inserted\n"); 4333 break; 4334 case CISS_LSTATUS_MISSING_PDRIVE: 4335 printf("missing a needed physical drive\n"); 4336 break; 4337 case CISS_LSTATUS_BECOMING_READY: 4338 printf("becoming ready\n"); 4339 break; 4340 } 4341 4342 /* print failed physical drives */ 4343 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) { 4344 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]); 4345 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]); 4346 if (bus == -1) 4347 continue; 4348 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target, 4349 ld->cl_lstatus->drive_failure_map[i]); 4350 } 4351 } 4352 4353 #ifdef CISS_DEBUG 4354 #include "opt_ddb.h" 4355 #ifdef DDB 4356 #include <ddb/ddb.h> 4357 /************************************************************************ 4358 * Print information about the controller/driver. 4359 */ 4360 static void 4361 ciss_print_adapter(struct ciss_softc *sc) 4362 { 4363 int i, j; 4364 4365 ciss_printf(sc, "ADAPTER:\n"); 4366 for (i = 0; i < CISSQ_COUNT; i++) { 4367 ciss_printf(sc, "%s %d/%d\n", 4368 i == 0 ? "free" : 4369 i == 1 ? "busy" : "complete", 4370 sc->ciss_qstat[i].q_length, 4371 sc->ciss_qstat[i].q_max); 4372 } 4373 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests); 4374 ciss_printf(sc, "flags %b\n", sc->ciss_flags, 4375 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n"); 4376 4377 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 4378 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) { 4379 ciss_printf(sc, "LOGICAL DRIVE %d: ", i); 4380 ciss_print_ldrive(sc, &sc->ciss_logical[i][j]); 4381 } 4382 } 4383 4384 /* XXX Should physical drives be printed out here? */ 4385 4386 for (i = 1; i < sc->ciss_max_requests; i++) 4387 ciss_print_request(sc->ciss_request + i); 4388 } 4389 4390 /* DDB hook */ 4391 DB_COMMAND(ciss_prt, db_ciss_prt) 4392 { 4393 struct ciss_softc *sc; 4394 devclass_t dc; 4395 int maxciss, i; 4396 4397 dc = devclass_find("ciss"); 4398 if ( dc == NULL ) { 4399 printf("%s: can't find devclass!\n", __func__); 4400 return; 4401 } 4402 maxciss = devclass_get_maxunit(dc); 4403 for (i = 0; i < maxciss; i++) { 4404 sc = devclass_get_softc(dc, i); 4405 ciss_print_adapter(sc); 4406 } 4407 } 4408 #endif 4409 #endif 4410 4411 /************************************************************************ 4412 * Return a name for a logical drive status value. 4413 */ 4414 static const char * 4415 ciss_name_ldrive_status(int status) 4416 { 4417 switch (status) { 4418 case CISS_LSTATUS_OK: 4419 return("OK"); 4420 case CISS_LSTATUS_FAILED: 4421 return("failed"); 4422 case CISS_LSTATUS_NOT_CONFIGURED: 4423 return("not configured"); 4424 case CISS_LSTATUS_INTERIM_RECOVERY: 4425 return("interim recovery"); 4426 case CISS_LSTATUS_READY_RECOVERY: 4427 return("ready for recovery"); 4428 case CISS_LSTATUS_RECOVERING: 4429 return("recovering"); 4430 case CISS_LSTATUS_WRONG_PDRIVE: 4431 return("wrong physical drive inserted"); 4432 case CISS_LSTATUS_MISSING_PDRIVE: 4433 return("missing physical drive"); 4434 case CISS_LSTATUS_EXPANDING: 4435 return("expanding"); 4436 case CISS_LSTATUS_BECOMING_READY: 4437 return("becoming ready"); 4438 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4439 return("queued for expansion"); 4440 } 4441 return("unknown status"); 4442 } 4443 4444 /************************************************************************ 4445 * Return an online/offline/nonexistent value for a logical drive 4446 * status value. 4447 */ 4448 static int 4449 ciss_decode_ldrive_status(int status) 4450 { 4451 switch(status) { 4452 case CISS_LSTATUS_NOT_CONFIGURED: 4453 return(CISS_LD_NONEXISTENT); 4454 4455 case CISS_LSTATUS_OK: 4456 case CISS_LSTATUS_INTERIM_RECOVERY: 4457 case CISS_LSTATUS_READY_RECOVERY: 4458 case CISS_LSTATUS_RECOVERING: 4459 case CISS_LSTATUS_EXPANDING: 4460 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4461 return(CISS_LD_ONLINE); 4462 4463 case CISS_LSTATUS_FAILED: 4464 case CISS_LSTATUS_WRONG_PDRIVE: 4465 case CISS_LSTATUS_MISSING_PDRIVE: 4466 case CISS_LSTATUS_BECOMING_READY: 4467 default: 4468 return(CISS_LD_OFFLINE); 4469 } 4470 } 4471 4472 4473 /************************************************************************ 4474 * Return a name for a logical drive's organisation. 4475 */ 4476 static const char * 4477 ciss_name_ldrive_org(int org) 4478 { 4479 switch(org) { 4480 case CISS_LDRIVE_RAID0: 4481 return("RAID 0"); 4482 case CISS_LDRIVE_RAID1: 4483 return("RAID 1(1+0)"); 4484 case CISS_LDRIVE_RAID4: 4485 return("RAID 4"); 4486 case CISS_LDRIVE_RAID5: 4487 return("RAID 5"); 4488 case CISS_LDRIVE_RAID51: 4489 return("RAID 5+1"); 4490 case CISS_LDRIVE_RAIDADG: 4491 return("RAID ADG"); 4492 } 4493 return("unknown"); 4494 } 4495 4496 /************************************************************************ 4497 * Return a name for a command status value. 4498 */ 4499 static const char * 4500 ciss_name_command_status(int status) 4501 { 4502 switch(status) { 4503 case CISS_CMD_STATUS_SUCCESS: 4504 return("success"); 4505 case CISS_CMD_STATUS_TARGET_STATUS: 4506 return("target status"); 4507 case CISS_CMD_STATUS_DATA_UNDERRUN: 4508 return("data underrun"); 4509 case CISS_CMD_STATUS_DATA_OVERRUN: 4510 return("data overrun"); 4511 case CISS_CMD_STATUS_INVALID_COMMAND: 4512 return("invalid command"); 4513 case CISS_CMD_STATUS_PROTOCOL_ERROR: 4514 return("protocol error"); 4515 case CISS_CMD_STATUS_HARDWARE_ERROR: 4516 return("hardware error"); 4517 case CISS_CMD_STATUS_CONNECTION_LOST: 4518 return("connection lost"); 4519 case CISS_CMD_STATUS_ABORTED: 4520 return("aborted"); 4521 case CISS_CMD_STATUS_ABORT_FAILED: 4522 return("abort failed"); 4523 case CISS_CMD_STATUS_UNSOLICITED_ABORT: 4524 return("unsolicited abort"); 4525 case CISS_CMD_STATUS_TIMEOUT: 4526 return("timeout"); 4527 case CISS_CMD_STATUS_UNABORTABLE: 4528 return("unabortable"); 4529 } 4530 return("unknown status"); 4531 } 4532 4533 /************************************************************************ 4534 * Handle an open on the control device. 4535 */ 4536 static int 4537 ciss_open(struct cdev *dev, int flags, int fmt, struct thread *p) 4538 { 4539 struct ciss_softc *sc; 4540 4541 debug_called(1); 4542 4543 sc = (struct ciss_softc *)dev->si_drv1; 4544 4545 /* we might want to veto if someone already has us open */ 4546 4547 mtx_lock(&sc->ciss_mtx); 4548 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN; 4549 mtx_unlock(&sc->ciss_mtx); 4550 return(0); 4551 } 4552 4553 /************************************************************************ 4554 * Handle the last close on the control device. 4555 */ 4556 static int 4557 ciss_close(struct cdev *dev, int flags, int fmt, struct thread *p) 4558 { 4559 struct ciss_softc *sc; 4560 4561 debug_called(1); 4562 4563 sc = (struct ciss_softc *)dev->si_drv1; 4564 4565 mtx_lock(&sc->ciss_mtx); 4566 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN; 4567 mtx_unlock(&sc->ciss_mtx); 4568 return (0); 4569 } 4570 4571 /******************************************************************************** 4572 * Handle adapter-specific control operations. 4573 * 4574 * Note that the API here is compatible with the Linux driver, in order to 4575 * simplify the porting of Compaq's userland tools. 4576 */ 4577 static int 4578 ciss_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag, struct thread *p) 4579 { 4580 struct ciss_softc *sc; 4581 IOCTL_Command_struct *ioc = (IOCTL_Command_struct *)addr; 4582 #ifdef __amd64__ 4583 IOCTL_Command_struct32 *ioc32 = (IOCTL_Command_struct32 *)addr; 4584 IOCTL_Command_struct ioc_swab; 4585 #endif 4586 int error; 4587 4588 debug_called(1); 4589 4590 sc = (struct ciss_softc *)dev->si_drv1; 4591 error = 0; 4592 mtx_lock(&sc->ciss_mtx); 4593 4594 switch(cmd) { 4595 case CCISS_GETQSTATS: 4596 { 4597 union ciss_statrequest *cr = (union ciss_statrequest *)addr; 4598 4599 switch (cr->cs_item) { 4600 case CISSQ_FREE: 4601 case CISSQ_NOTIFY: 4602 bcopy(&sc->ciss_qstat[cr->cs_item], &cr->cs_qstat, 4603 sizeof(struct ciss_qstat)); 4604 break; 4605 default: 4606 error = ENOIOCTL; 4607 break; 4608 } 4609 4610 break; 4611 } 4612 4613 case CCISS_GETPCIINFO: 4614 { 4615 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr; 4616 4617 pis->bus = pci_get_bus(sc->ciss_dev); 4618 pis->dev_fn = pci_get_slot(sc->ciss_dev); 4619 pis->board_id = (pci_get_subvendor(sc->ciss_dev) << 16) | 4620 pci_get_subdevice(sc->ciss_dev); 4621 4622 break; 4623 } 4624 4625 case CCISS_GETINTINFO: 4626 { 4627 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4628 4629 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay; 4630 cis->count = sc->ciss_cfg->interrupt_coalesce_count; 4631 4632 break; 4633 } 4634 4635 case CCISS_SETINTINFO: 4636 { 4637 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4638 4639 if ((cis->delay == 0) && (cis->count == 0)) { 4640 error = EINVAL; 4641 break; 4642 } 4643 4644 /* 4645 * XXX apparently this is only safe if the controller is idle, 4646 * we should suspend it before doing this. 4647 */ 4648 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay; 4649 sc->ciss_cfg->interrupt_coalesce_count = cis->count; 4650 4651 if (ciss_update_config(sc)) 4652 error = EIO; 4653 4654 /* XXX resume the controller here */ 4655 break; 4656 } 4657 4658 case CCISS_GETNODENAME: 4659 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr, 4660 sizeof(NodeName_type)); 4661 break; 4662 4663 case CCISS_SETNODENAME: 4664 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name, 4665 sizeof(NodeName_type)); 4666 if (ciss_update_config(sc)) 4667 error = EIO; 4668 break; 4669 4670 case CCISS_GETHEARTBEAT: 4671 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat; 4672 break; 4673 4674 case CCISS_GETBUSTYPES: 4675 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types; 4676 break; 4677 4678 case CCISS_GETFIRMVER: 4679 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr, 4680 sizeof(FirmwareVer_type)); 4681 break; 4682 4683 case CCISS_GETDRIVERVER: 4684 *(DriverVer_type *)addr = CISS_DRIVER_VERSION; 4685 break; 4686 4687 case CCISS_REVALIDVOLS: 4688 /* 4689 * This is a bit ugly; to do it "right" we really need 4690 * to find any disks that have changed, kick CAM off them, 4691 * then rescan only these disks. It'd be nice if they 4692 * a) told us which disk(s) they were going to play with, 4693 * and b) which ones had arrived. 8( 4694 */ 4695 break; 4696 4697 #ifdef __amd64__ 4698 case CCISS_PASSTHRU32: 4699 ioc_swab.LUN_info = ioc32->LUN_info; 4700 ioc_swab.Request = ioc32->Request; 4701 ioc_swab.error_info = ioc32->error_info; 4702 ioc_swab.buf_size = ioc32->buf_size; 4703 ioc_swab.buf = (u_int8_t *)(uintptr_t)ioc32->buf; 4704 ioc = &ioc_swab; 4705 /* FALLTHROUGH */ 4706 #endif 4707 4708 case CCISS_PASSTHRU: 4709 error = ciss_user_command(sc, ioc); 4710 break; 4711 4712 default: 4713 debug(0, "unknown ioctl 0x%lx", cmd); 4714 4715 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO); 4716 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO); 4717 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO); 4718 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME); 4719 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME); 4720 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT); 4721 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES); 4722 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER); 4723 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER); 4724 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS); 4725 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU); 4726 4727 error = ENOIOCTL; 4728 break; 4729 } 4730 4731 mtx_unlock(&sc->ciss_mtx); 4732 return(error); 4733 } 4734