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 /* 226 * Control device interface. 227 */ 228 static d_open_t ciss_open; 229 static d_close_t ciss_close; 230 static d_ioctl_t ciss_ioctl; 231 232 static struct cdevsw ciss_cdevsw = { 233 .d_version = D_VERSION, 234 .d_flags = 0, 235 .d_open = ciss_open, 236 .d_close = ciss_close, 237 .d_ioctl = ciss_ioctl, 238 .d_name = "ciss", 239 }; 240 241 /* 242 * This tunable can be set at boot time and controls whether physical devices 243 * that are marked hidden by the firmware should be exposed anyways. 244 */ 245 static unsigned int ciss_expose_hidden_physical = 0; 246 TUNABLE_INT("hw.ciss.expose_hidden_physical", &ciss_expose_hidden_physical); 247 248 static unsigned int ciss_nop_message_heartbeat = 0; 249 TUNABLE_INT("hw.ciss.nop_message_heartbeat", &ciss_nop_message_heartbeat); 250 251 /* 252 * This tunable can force a particular transport to be used: 253 * <= 0 : use default 254 * 1 : force simple 255 * 2 : force performant 256 */ 257 static int ciss_force_transport = 0; 258 TUNABLE_INT("hw.ciss.force_transport", &ciss_force_transport); 259 260 /* 261 * This tunable can force a particular interrupt delivery method to be used: 262 * <= 0 : use default 263 * 1 : force INTx 264 * 2 : force MSIX 265 */ 266 static int ciss_force_interrupt = 0; 267 TUNABLE_INT("hw.ciss.force_interrupt", &ciss_force_interrupt); 268 269 270 /************************************************************************ 271 * CISS adapters amazingly don't have a defined programming interface 272 * value. (One could say some very despairing things about PCI and 273 * people just not getting the general idea.) So we are forced to 274 * stick with matching against subvendor/subdevice, and thus have to 275 * be updated for every new CISS adapter that appears. 276 */ 277 #define CISS_BOARD_UNKNWON 0 278 #define CISS_BOARD_SA5 1 279 #define CISS_BOARD_SA5B 2 280 #define CISS_BOARD_NOMSI (1<<4) 281 #define CISS_BOARD_SIMPLE (1<<5) 282 283 static struct 284 { 285 u_int16_t subvendor; 286 u_int16_t subdevice; 287 int flags; 288 char *desc; 289 } ciss_vendor_data[] = { 290 { 0x0e11, 0x4070, CISS_BOARD_SA5|CISS_BOARD_NOMSI|CISS_BOARD_SIMPLE, 291 "Compaq Smart Array 5300" }, 292 { 0x0e11, 0x4080, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 5i" }, 293 { 0x0e11, 0x4082, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 532" }, 294 { 0x0e11, 0x4083, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "HP Smart Array 5312" }, 295 { 0x0e11, 0x4091, CISS_BOARD_SA5, "HP Smart Array 6i" }, 296 { 0x0e11, 0x409A, CISS_BOARD_SA5, "HP Smart Array 641" }, 297 { 0x0e11, 0x409B, CISS_BOARD_SA5, "HP Smart Array 642" }, 298 { 0x0e11, 0x409C, CISS_BOARD_SA5, "HP Smart Array 6400" }, 299 { 0x0e11, 0x409D, CISS_BOARD_SA5, "HP Smart Array 6400 EM" }, 300 { 0x103C, 0x3211, CISS_BOARD_SA5, "HP Smart Array E200i" }, 301 { 0x103C, 0x3212, CISS_BOARD_SA5, "HP Smart Array E200" }, 302 { 0x103C, 0x3213, CISS_BOARD_SA5, "HP Smart Array E200i" }, 303 { 0x103C, 0x3214, CISS_BOARD_SA5, "HP Smart Array E200i" }, 304 { 0x103C, 0x3215, CISS_BOARD_SA5, "HP Smart Array E200i" }, 305 { 0x103C, 0x3220, CISS_BOARD_SA5, "HP Smart Array" }, 306 { 0x103C, 0x3222, CISS_BOARD_SA5, "HP Smart Array" }, 307 { 0x103C, 0x3223, CISS_BOARD_SA5, "HP Smart Array P800" }, 308 { 0x103C, 0x3225, CISS_BOARD_SA5, "HP Smart Array P600" }, 309 { 0x103C, 0x3230, CISS_BOARD_SA5, "HP Smart Array" }, 310 { 0x103C, 0x3231, CISS_BOARD_SA5, "HP Smart Array" }, 311 { 0x103C, 0x3232, CISS_BOARD_SA5, "HP Smart Array" }, 312 { 0x103C, 0x3233, CISS_BOARD_SA5, "HP Smart Array" }, 313 { 0x103C, 0x3234, CISS_BOARD_SA5, "HP Smart Array P400" }, 314 { 0x103C, 0x3235, CISS_BOARD_SA5, "HP Smart Array P400i" }, 315 { 0x103C, 0x3236, CISS_BOARD_SA5, "HP Smart Array" }, 316 { 0x103C, 0x3237, CISS_BOARD_SA5, "HP Smart Array E500" }, 317 { 0x103C, 0x3238, CISS_BOARD_SA5, "HP Smart Array" }, 318 { 0x103C, 0x3239, CISS_BOARD_SA5, "HP Smart Array" }, 319 { 0x103C, 0x323A, CISS_BOARD_SA5, "HP Smart Array" }, 320 { 0x103C, 0x323B, CISS_BOARD_SA5, "HP Smart Array" }, 321 { 0x103C, 0x323C, CISS_BOARD_SA5, "HP Smart Array" }, 322 { 0x103C, 0x323D, CISS_BOARD_SA5, "HP Smart Array P700m" }, 323 { 0x103C, 0x3241, CISS_BOARD_SA5, "HP Smart Array P212" }, 324 { 0x103C, 0x3243, CISS_BOARD_SA5, "HP Smart Array P410" }, 325 { 0x103C, 0x3245, CISS_BOARD_SA5, "HP Smart Array P410i" }, 326 { 0x103C, 0x3247, CISS_BOARD_SA5, "HP Smart Array P411" }, 327 { 0x103C, 0x3249, CISS_BOARD_SA5, "HP Smart Array P812" }, 328 { 0x103C, 0x324A, CISS_BOARD_SA5, "HP Smart Array P712m" }, 329 { 0x103C, 0x324B, CISS_BOARD_SA5, "HP Smart Array" }, 330 { 0x103C, 0x3350, CISS_BOARD_SA5, "HP Smart Array P222" }, 331 { 0x103C, 0x3351, CISS_BOARD_SA5, "HP Smart Array P420" }, 332 { 0x103C, 0x3352, CISS_BOARD_SA5, "HP Smart Array P421" }, 333 { 0x103C, 0x3353, CISS_BOARD_SA5, "HP Smart Array P822" }, 334 { 0x103C, 0x3354, CISS_BOARD_SA5, "HP Smart Array P420i" }, 335 { 0x103C, 0x3355, CISS_BOARD_SA5, "HP Smart Array P220i" }, 336 { 0x103C, 0x3356, CISS_BOARD_SA5, "HP Smart Array P721m" }, 337 { 0x103C, 0x1920, CISS_BOARD_SA5, "HP Smart Array P430i" }, 338 { 0x103C, 0x1921, CISS_BOARD_SA5, "HP Smart Array P830i" }, 339 { 0x103C, 0x1922, CISS_BOARD_SA5, "HP Smart Array P430" }, 340 { 0x103C, 0x1923, CISS_BOARD_SA5, "HP Smart Array P431" }, 341 { 0x103C, 0x1924, CISS_BOARD_SA5, "HP Smart Array P830" }, 342 { 0x103C, 0x1926, CISS_BOARD_SA5, "HP Smart Array P731m" }, 343 { 0x103C, 0x1928, CISS_BOARD_SA5, "HP Smart Array P230i" }, 344 { 0x103C, 0x1929, CISS_BOARD_SA5, "HP Smart Array P530" }, 345 { 0x103C, 0x192A, CISS_BOARD_SA5, "HP Smart Array P531" }, 346 { 0x103C, 0x21BD, CISS_BOARD_SA5, "HP Smart Array P244br" }, 347 { 0x103C, 0x21BE, CISS_BOARD_SA5, "HP Smart Array P741m" }, 348 { 0x103C, 0x21BF, CISS_BOARD_SA5, "HP Smart Array H240ar" }, 349 { 0x103C, 0x21C0, CISS_BOARD_SA5, "HP Smart Array P440ar" }, 350 { 0x103C, 0x21C1, CISS_BOARD_SA5, "HP Smart Array P840ar" }, 351 { 0x103C, 0x21C2, CISS_BOARD_SA5, "HP Smart Array P440" }, 352 { 0x103C, 0x21C3, CISS_BOARD_SA5, "HP Smart Array P441" }, 353 { 0x103C, 0x21C5, CISS_BOARD_SA5, "HP Smart Array P841" }, 354 { 0x103C, 0x21C6, CISS_BOARD_SA5, "HP Smart Array H244br" }, 355 { 0x103C, 0x21C7, CISS_BOARD_SA5, "HP Smart Array H240" }, 356 { 0x103C, 0x21C8, CISS_BOARD_SA5, "HP Smart Array H241" }, 357 { 0x103C, 0x21CA, CISS_BOARD_SA5, "HP Smart Array P246br" }, 358 { 0x103C, 0x21CB, CISS_BOARD_SA5, "HP Smart Array P840" }, 359 { 0x103C, 0x21CC, CISS_BOARD_SA5, "HP Smart Array P542d" }, 360 { 0x103C, 0x21CD, CISS_BOARD_SA5, "HP Smart Array P240nr" }, 361 { 0x103C, 0x21CE, CISS_BOARD_SA5, "HP Smart Array H240nr" }, 362 { 0, 0, 0, NULL } 363 }; 364 365 static devclass_t ciss_devclass; 366 DRIVER_MODULE(ciss, pci, ciss_pci_driver, ciss_devclass, 0, 0); 367 MODULE_PNP_INFO("U16:vendor;U16:device;", pci, ciss, ciss_vendor_data, 368 nitems(ciss_vendor_data) - 1); 369 MODULE_DEPEND(ciss, cam, 1, 1, 1); 370 MODULE_DEPEND(ciss, pci, 1, 1, 1); 371 372 /************************************************************************ 373 * Find a match for the device in our list of known adapters. 374 */ 375 static int 376 ciss_lookup(device_t dev) 377 { 378 int i; 379 380 for (i = 0; ciss_vendor_data[i].desc != NULL; i++) 381 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) && 382 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) { 383 return(i); 384 } 385 return(-1); 386 } 387 388 /************************************************************************ 389 * Match a known CISS adapter. 390 */ 391 static int 392 ciss_probe(device_t dev) 393 { 394 int i; 395 396 i = ciss_lookup(dev); 397 if (i != -1) { 398 device_set_desc(dev, ciss_vendor_data[i].desc); 399 return(BUS_PROBE_DEFAULT); 400 } 401 return(ENOENT); 402 } 403 404 /************************************************************************ 405 * Attach the driver to this adapter. 406 */ 407 static int 408 ciss_attach(device_t dev) 409 { 410 struct ciss_softc *sc; 411 int error; 412 413 debug_called(1); 414 415 #ifdef CISS_DEBUG 416 /* print structure/union sizes */ 417 debug_struct(ciss_command); 418 debug_struct(ciss_header); 419 debug_union(ciss_device_address); 420 debug_struct(ciss_cdb); 421 debug_struct(ciss_report_cdb); 422 debug_struct(ciss_notify_cdb); 423 debug_struct(ciss_notify); 424 debug_struct(ciss_message_cdb); 425 debug_struct(ciss_error_info_pointer); 426 debug_struct(ciss_error_info); 427 debug_struct(ciss_sg_entry); 428 debug_struct(ciss_config_table); 429 debug_struct(ciss_bmic_cdb); 430 debug_struct(ciss_bmic_id_ldrive); 431 debug_struct(ciss_bmic_id_lstatus); 432 debug_struct(ciss_bmic_id_table); 433 debug_struct(ciss_bmic_id_pdrive); 434 debug_struct(ciss_bmic_blink_pdrive); 435 debug_struct(ciss_bmic_flush_cache); 436 debug_const(CISS_MAX_REQUESTS); 437 debug_const(CISS_MAX_LOGICAL); 438 debug_const(CISS_INTERRUPT_COALESCE_DELAY); 439 debug_const(CISS_INTERRUPT_COALESCE_COUNT); 440 debug_const(CISS_COMMAND_ALLOC_SIZE); 441 debug_const(CISS_COMMAND_SG_LENGTH); 442 443 debug_type(cciss_pci_info_struct); 444 debug_type(cciss_coalint_struct); 445 debug_type(cciss_coalint_struct); 446 debug_type(NodeName_type); 447 debug_type(NodeName_type); 448 debug_type(Heartbeat_type); 449 debug_type(BusTypes_type); 450 debug_type(FirmwareVer_type); 451 debug_type(DriverVer_type); 452 debug_type(IOCTL_Command_struct); 453 #endif 454 455 sc = device_get_softc(dev); 456 sc->ciss_dev = dev; 457 mtx_init(&sc->ciss_mtx, "cissmtx", NULL, MTX_DEF); 458 callout_init_mtx(&sc->ciss_periodic, &sc->ciss_mtx, 0); 459 460 /* 461 * Do PCI-specific init. 462 */ 463 if ((error = ciss_init_pci(sc)) != 0) 464 goto out; 465 466 /* 467 * Initialise driver queues. 468 */ 469 ciss_initq_free(sc); 470 ciss_initq_notify(sc); 471 472 /* 473 * Initialize device sysctls. 474 */ 475 ciss_init_sysctl(sc); 476 477 /* 478 * Initialise command/request pool. 479 */ 480 if ((error = ciss_init_requests(sc)) != 0) 481 goto out; 482 483 /* 484 * Get adapter information. 485 */ 486 if ((error = ciss_identify_adapter(sc)) != 0) 487 goto out; 488 489 /* 490 * Find all the physical devices. 491 */ 492 if ((error = ciss_init_physical(sc)) != 0) 493 goto out; 494 495 /* 496 * Build our private table of logical devices. 497 */ 498 if ((error = ciss_init_logical(sc)) != 0) 499 goto out; 500 501 /* 502 * Enable interrupts so that the CAM scan can complete. 503 */ 504 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc); 505 506 /* 507 * Initialise the CAM interface. 508 */ 509 if ((error = ciss_cam_init(sc)) != 0) 510 goto out; 511 512 /* 513 * Start the heartbeat routine and event chain. 514 */ 515 ciss_periodic(sc); 516 517 /* 518 * Create the control device. 519 */ 520 sc->ciss_dev_t = make_dev(&ciss_cdevsw, device_get_unit(sc->ciss_dev), 521 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR, 522 "ciss%d", device_get_unit(sc->ciss_dev)); 523 sc->ciss_dev_t->si_drv1 = sc; 524 525 /* 526 * The adapter is running; synchronous commands can now sleep 527 * waiting for an interrupt to signal completion. 528 */ 529 sc->ciss_flags |= CISS_FLAG_RUNNING; 530 531 ciss_spawn_notify_thread(sc); 532 533 error = 0; 534 out: 535 if (error != 0) { 536 /* ciss_free() expects the mutex to be held */ 537 mtx_lock(&sc->ciss_mtx); 538 ciss_free(sc); 539 } 540 return(error); 541 } 542 543 /************************************************************************ 544 * Detach the driver from this adapter. 545 */ 546 static int 547 ciss_detach(device_t dev) 548 { 549 struct ciss_softc *sc = device_get_softc(dev); 550 551 debug_called(1); 552 553 mtx_lock(&sc->ciss_mtx); 554 if (sc->ciss_flags & CISS_FLAG_CONTROL_OPEN) { 555 mtx_unlock(&sc->ciss_mtx); 556 return (EBUSY); 557 } 558 559 /* flush adapter cache */ 560 ciss_flush_adapter(sc); 561 562 /* release all resources. The mutex is released and freed here too. */ 563 ciss_free(sc); 564 565 return(0); 566 } 567 568 /************************************************************************ 569 * Prepare adapter for system shutdown. 570 */ 571 static int 572 ciss_shutdown(device_t dev) 573 { 574 struct ciss_softc *sc = device_get_softc(dev); 575 576 debug_called(1); 577 578 mtx_lock(&sc->ciss_mtx); 579 /* flush adapter cache */ 580 ciss_flush_adapter(sc); 581 582 if (sc->ciss_soft_reset) 583 ciss_soft_reset(sc); 584 mtx_unlock(&sc->ciss_mtx); 585 586 return(0); 587 } 588 589 static void 590 ciss_init_sysctl(struct ciss_softc *sc) 591 { 592 593 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->ciss_dev), 594 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ciss_dev)), 595 OID_AUTO, "soft_reset", CTLFLAG_RW, &sc->ciss_soft_reset, 0, ""); 596 } 597 598 /************************************************************************ 599 * Perform PCI-specific attachment actions. 600 */ 601 static int 602 ciss_init_pci(struct ciss_softc *sc) 603 { 604 uintptr_t cbase, csize, cofs; 605 uint32_t method, supported_methods; 606 int error, sqmask, i; 607 void *intr; 608 609 debug_called(1); 610 611 /* 612 * Work out adapter type. 613 */ 614 i = ciss_lookup(sc->ciss_dev); 615 if (i < 0) { 616 ciss_printf(sc, "unknown adapter type\n"); 617 return (ENXIO); 618 } 619 620 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) { 621 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5; 622 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) { 623 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5B; 624 } else { 625 /* 626 * XXX Big hammer, masks/unmasks all possible interrupts. This should 627 * work on all hardware variants. Need to add code to handle the 628 * "controller crashed" interrupt bit that this unmasks. 629 */ 630 sqmask = ~0; 631 } 632 633 /* 634 * Allocate register window first (we need this to find the config 635 * struct). 636 */ 637 error = ENXIO; 638 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS; 639 if ((sc->ciss_regs_resource = 640 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 641 &sc->ciss_regs_rid, RF_ACTIVE)) == NULL) { 642 ciss_printf(sc, "can't allocate register window\n"); 643 return(ENXIO); 644 } 645 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource); 646 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource); 647 648 /* 649 * Find the BAR holding the config structure. If it's not the one 650 * we already mapped for registers, map it too. 651 */ 652 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff; 653 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) { 654 if ((sc->ciss_cfg_resource = 655 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 656 &sc->ciss_cfg_rid, RF_ACTIVE)) == NULL) { 657 ciss_printf(sc, "can't allocate config window\n"); 658 return(ENXIO); 659 } 660 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource); 661 csize = rman_get_end(sc->ciss_cfg_resource) - 662 rman_get_start(sc->ciss_cfg_resource) + 1; 663 } else { 664 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource); 665 csize = rman_get_end(sc->ciss_regs_resource) - 666 rman_get_start(sc->ciss_regs_resource) + 1; 667 } 668 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF); 669 670 /* 671 * Use the base/size/offset values we just calculated to 672 * sanity-check the config structure. If it's OK, point to it. 673 */ 674 if ((cofs + sizeof(struct ciss_config_table)) > csize) { 675 ciss_printf(sc, "config table outside window\n"); 676 return(ENXIO); 677 } 678 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs); 679 debug(1, "config struct at %p", sc->ciss_cfg); 680 681 /* 682 * Calculate the number of request structures/commands we are 683 * going to provide for this adapter. 684 */ 685 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands); 686 687 /* 688 * Validate the config structure. If we supported other transport 689 * methods, we could select amongst them at this point in time. 690 */ 691 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) { 692 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n", 693 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1], 694 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]); 695 return(ENXIO); 696 } 697 698 /* 699 * Select the mode of operation, prefer Performant. 700 */ 701 if (!(sc->ciss_cfg->supported_methods & 702 (CISS_TRANSPORT_METHOD_SIMPLE | CISS_TRANSPORT_METHOD_PERF))) { 703 ciss_printf(sc, "No supported transport layers: 0x%x\n", 704 sc->ciss_cfg->supported_methods); 705 } 706 707 switch (ciss_force_transport) { 708 case 1: 709 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE; 710 break; 711 case 2: 712 supported_methods = CISS_TRANSPORT_METHOD_PERF; 713 break; 714 default: 715 /* 716 * Override the capabilities of the BOARD and specify SIMPLE 717 * MODE 718 */ 719 if (ciss_vendor_data[i].flags & CISS_BOARD_SIMPLE) 720 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE; 721 else 722 supported_methods = sc->ciss_cfg->supported_methods; 723 break; 724 } 725 726 setup: 727 if ((supported_methods & CISS_TRANSPORT_METHOD_PERF) != 0) { 728 method = CISS_TRANSPORT_METHOD_PERF; 729 sc->ciss_perf = (struct ciss_perf_config *)(cbase + cofs + 730 sc->ciss_cfg->transport_offset); 731 if (ciss_init_perf(sc)) { 732 supported_methods &= ~method; 733 goto setup; 734 } 735 } else if (supported_methods & CISS_TRANSPORT_METHOD_SIMPLE) { 736 method = CISS_TRANSPORT_METHOD_SIMPLE; 737 } else { 738 ciss_printf(sc, "No supported transport methods: 0x%x\n", 739 sc->ciss_cfg->supported_methods); 740 return(ENXIO); 741 } 742 743 /* 744 * Tell it we're using the low 4GB of RAM. Set the default interrupt 745 * coalescing options. 746 */ 747 sc->ciss_cfg->requested_method = method; 748 sc->ciss_cfg->command_physlimit = 0; 749 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY; 750 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT; 751 752 #ifdef __i386__ 753 sc->ciss_cfg->host_driver |= CISS_DRIVER_SCSI_PREFETCH; 754 #endif 755 756 if (ciss_update_config(sc)) { 757 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n", 758 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR)); 759 return(ENXIO); 760 } 761 if ((sc->ciss_cfg->active_method & method) == 0) { 762 supported_methods &= ~method; 763 if (supported_methods == 0) { 764 ciss_printf(sc, "adapter refuses to go into available transports " 765 "mode (0x%x, 0x%x)\n", supported_methods, 766 sc->ciss_cfg->active_method); 767 return(ENXIO); 768 } else 769 goto setup; 770 } 771 772 /* 773 * Wait for the adapter to come ready. 774 */ 775 if ((error = ciss_wait_adapter(sc)) != 0) 776 return(error); 777 778 /* Prepare to possibly use MSIX and/or PERFORMANT interrupts. Normal 779 * interrupts have a rid of 0, this will be overridden if MSIX is used. 780 */ 781 sc->ciss_irq_rid[0] = 0; 782 if (method == CISS_TRANSPORT_METHOD_PERF) { 783 ciss_printf(sc, "PERFORMANT Transport\n"); 784 if ((ciss_force_interrupt != 1) && (ciss_setup_msix(sc) == 0)) { 785 intr = ciss_perf_msi_intr; 786 } else { 787 intr = ciss_perf_intr; 788 } 789 /* XXX The docs say that the 0x01 bit is only for SAS controllers. 790 * Unfortunately, there is no good way to know if this is a SAS 791 * controller. Hopefully enabling this bit universally will work OK. 792 * It seems to work fine for SA6i controllers. 793 */ 794 sc->ciss_interrupt_mask = CISS_TL_PERF_INTR_OPQ | CISS_TL_PERF_INTR_MSI; 795 796 } else { 797 ciss_printf(sc, "SIMPLE Transport\n"); 798 /* MSIX doesn't seem to work in SIMPLE mode, only enable if it forced */ 799 if (ciss_force_interrupt == 2) 800 /* If this fails, we automatically revert to INTx */ 801 ciss_setup_msix(sc); 802 sc->ciss_perf = NULL; 803 intr = ciss_intr; 804 sc->ciss_interrupt_mask = sqmask; 805 } 806 807 /* 808 * Turn off interrupts before we go routing anything. 809 */ 810 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 811 812 /* 813 * Allocate and set up our interrupt. 814 */ 815 if ((sc->ciss_irq_resource = 816 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid[0], 817 RF_ACTIVE | RF_SHAREABLE)) == NULL) { 818 ciss_printf(sc, "can't allocate interrupt\n"); 819 return(ENXIO); 820 } 821 822 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource, 823 INTR_TYPE_CAM|INTR_MPSAFE, NULL, intr, sc, 824 &sc->ciss_intr)) { 825 ciss_printf(sc, "can't set up interrupt\n"); 826 return(ENXIO); 827 } 828 829 /* 830 * Allocate the parent bus DMA tag appropriate for our PCI 831 * interface. 832 * 833 * Note that "simple" adapters can only address within a 32-bit 834 * span. 835 */ 836 if (bus_dma_tag_create(bus_get_dma_tag(sc->ciss_dev),/* PCI parent */ 837 1, 0, /* alignment, boundary */ 838 BUS_SPACE_MAXADDR, /* lowaddr */ 839 BUS_SPACE_MAXADDR, /* highaddr */ 840 NULL, NULL, /* filter, filterarg */ 841 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 842 BUS_SPACE_UNRESTRICTED, /* nsegments */ 843 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 844 0, /* flags */ 845 NULL, NULL, /* lockfunc, lockarg */ 846 &sc->ciss_parent_dmat)) { 847 ciss_printf(sc, "can't allocate parent DMA tag\n"); 848 return(ENOMEM); 849 } 850 851 /* 852 * Create DMA tag for mapping buffers into adapter-addressable 853 * space. 854 */ 855 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 856 1, 0, /* alignment, boundary */ 857 BUS_SPACE_MAXADDR, /* lowaddr */ 858 BUS_SPACE_MAXADDR, /* highaddr */ 859 NULL, NULL, /* filter, filterarg */ 860 (CISS_MAX_SG_ELEMENTS - 1) * PAGE_SIZE, /* maxsize */ 861 CISS_MAX_SG_ELEMENTS, /* nsegments */ 862 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 863 BUS_DMA_ALLOCNOW, /* flags */ 864 busdma_lock_mutex, &sc->ciss_mtx, /* lockfunc, lockarg */ 865 &sc->ciss_buffer_dmat)) { 866 ciss_printf(sc, "can't allocate buffer DMA tag\n"); 867 return(ENOMEM); 868 } 869 return(0); 870 } 871 872 /************************************************************************ 873 * Setup MSI/MSIX operation (Performant only) 874 * Four interrupts are available, but we only use 1 right now. If MSI-X 875 * isn't avaialble, try using MSI instead. 876 */ 877 static int 878 ciss_setup_msix(struct ciss_softc *sc) 879 { 880 int val, i; 881 882 /* Weed out devices that don't actually support MSI */ 883 i = ciss_lookup(sc->ciss_dev); 884 if (ciss_vendor_data[i].flags & CISS_BOARD_NOMSI) 885 return (EINVAL); 886 887 /* 888 * Only need to use the minimum number of MSI vectors, as the driver 889 * doesn't support directed MSIX interrupts. 890 */ 891 val = pci_msix_count(sc->ciss_dev); 892 if (val < CISS_MSI_COUNT) { 893 val = pci_msi_count(sc->ciss_dev); 894 device_printf(sc->ciss_dev, "got %d MSI messages]\n", val); 895 if (val < CISS_MSI_COUNT) 896 return (EINVAL); 897 } 898 val = MIN(val, CISS_MSI_COUNT); 899 if (pci_alloc_msix(sc->ciss_dev, &val) != 0) { 900 if (pci_alloc_msi(sc->ciss_dev, &val) != 0) 901 return (EINVAL); 902 } 903 904 sc->ciss_msi = val; 905 if (bootverbose) 906 ciss_printf(sc, "Using %d MSIX interrupt%s\n", val, 907 (val != 1) ? "s" : ""); 908 909 for (i = 0; i < val; i++) 910 sc->ciss_irq_rid[i] = i + 1; 911 912 return (0); 913 914 } 915 916 /************************************************************************ 917 * Setup the Performant structures. 918 */ 919 static int 920 ciss_init_perf(struct ciss_softc *sc) 921 { 922 struct ciss_perf_config *pc = sc->ciss_perf; 923 int reply_size; 924 925 /* 926 * Create the DMA tag for the reply queue. 927 */ 928 reply_size = sizeof(uint64_t) * sc->ciss_max_requests; 929 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 930 1, 0, /* alignment, boundary */ 931 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 932 BUS_SPACE_MAXADDR, /* highaddr */ 933 NULL, NULL, /* filter, filterarg */ 934 reply_size, 1, /* maxsize, nsegments */ 935 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 936 0, /* flags */ 937 NULL, NULL, /* lockfunc, lockarg */ 938 &sc->ciss_reply_dmat)) { 939 ciss_printf(sc, "can't allocate reply DMA tag\n"); 940 return(ENOMEM); 941 } 942 /* 943 * Allocate memory and make it available for DMA. 944 */ 945 if (bus_dmamem_alloc(sc->ciss_reply_dmat, (void **)&sc->ciss_reply, 946 BUS_DMA_NOWAIT, &sc->ciss_reply_map)) { 947 ciss_printf(sc, "can't allocate reply memory\n"); 948 return(ENOMEM); 949 } 950 bus_dmamap_load(sc->ciss_reply_dmat, sc->ciss_reply_map, sc->ciss_reply, 951 reply_size, ciss_command_map_helper, &sc->ciss_reply_phys, 0); 952 bzero(sc->ciss_reply, reply_size); 953 954 sc->ciss_cycle = 0x1; 955 sc->ciss_rqidx = 0; 956 957 /* 958 * Preload the fetch table with common command sizes. This allows the 959 * hardware to not waste bus cycles for typical i/o commands, but also not 960 * tax the driver to be too exact in choosing sizes. The table is optimized 961 * for page-aligned i/o's, but since most i/o comes from the various pagers, 962 * it's a reasonable assumption to make. 963 */ 964 pc->fetch_count[CISS_SG_FETCH_NONE] = (sizeof(struct ciss_command) + 15) / 16; 965 pc->fetch_count[CISS_SG_FETCH_1] = 966 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 1 + 15) / 16; 967 pc->fetch_count[CISS_SG_FETCH_2] = 968 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 2 + 15) / 16; 969 pc->fetch_count[CISS_SG_FETCH_4] = 970 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 4 + 15) / 16; 971 pc->fetch_count[CISS_SG_FETCH_8] = 972 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 8 + 15) / 16; 973 pc->fetch_count[CISS_SG_FETCH_16] = 974 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 16 + 15) / 16; 975 pc->fetch_count[CISS_SG_FETCH_32] = 976 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 32 + 15) / 16; 977 pc->fetch_count[CISS_SG_FETCH_MAX] = (CISS_COMMAND_ALLOC_SIZE + 15) / 16; 978 979 pc->rq_size = sc->ciss_max_requests; /* XXX less than the card supports? */ 980 pc->rq_count = 1; /* XXX Hardcode for a single queue */ 981 pc->rq_bank_hi = 0; 982 pc->rq_bank_lo = 0; 983 pc->rq[0].rq_addr_hi = 0x0; 984 pc->rq[0].rq_addr_lo = sc->ciss_reply_phys; 985 986 return(0); 987 } 988 989 /************************************************************************ 990 * Wait for the adapter to come ready. 991 */ 992 static int 993 ciss_wait_adapter(struct ciss_softc *sc) 994 { 995 int i; 996 997 debug_called(1); 998 999 /* 1000 * Wait for the adapter to come ready. 1001 */ 1002 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) { 1003 ciss_printf(sc, "waiting for adapter to come ready...\n"); 1004 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) { 1005 DELAY(1000000); /* one second */ 1006 if (i > 30) { 1007 ciss_printf(sc, "timed out waiting for adapter to come ready\n"); 1008 return(EIO); 1009 } 1010 } 1011 } 1012 return(0); 1013 } 1014 1015 /************************************************************************ 1016 * Flush the adapter cache. 1017 */ 1018 static int 1019 ciss_flush_adapter(struct ciss_softc *sc) 1020 { 1021 struct ciss_request *cr; 1022 struct ciss_bmic_flush_cache *cbfc; 1023 int error, command_status; 1024 1025 debug_called(1); 1026 1027 cr = NULL; 1028 cbfc = NULL; 1029 1030 /* 1031 * Build a BMIC request to flush the cache. We don't disable 1032 * it, as we may be going to do more I/O (eg. we are emulating 1033 * the Synchronise Cache command). 1034 */ 1035 if ((cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 1036 error = ENOMEM; 1037 goto out; 1038 } 1039 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE, 1040 (void **)&cbfc, sizeof(*cbfc))) != 0) 1041 goto out; 1042 1043 /* 1044 * Submit the request and wait for it to complete. 1045 */ 1046 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1047 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error); 1048 goto out; 1049 } 1050 1051 /* 1052 * Check response. 1053 */ 1054 ciss_report_request(cr, &command_status, NULL); 1055 switch(command_status) { 1056 case CISS_CMD_STATUS_SUCCESS: 1057 break; 1058 default: 1059 ciss_printf(sc, "error flushing cache (%s)\n", 1060 ciss_name_command_status(command_status)); 1061 error = EIO; 1062 goto out; 1063 } 1064 1065 out: 1066 if (cbfc != NULL) 1067 free(cbfc, CISS_MALLOC_CLASS); 1068 if (cr != NULL) 1069 ciss_release_request(cr); 1070 return(error); 1071 } 1072 1073 static void 1074 ciss_soft_reset(struct ciss_softc *sc) 1075 { 1076 struct ciss_request *cr = NULL; 1077 struct ciss_command *cc; 1078 int i, error = 0; 1079 1080 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1081 /* only reset proxy controllers */ 1082 if (sc->ciss_controllers[i].physical.bus == 0) 1083 continue; 1084 1085 if ((error = ciss_get_request(sc, &cr)) != 0) 1086 break; 1087 1088 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_SOFT_RESET, 1089 NULL, 0)) != 0) 1090 break; 1091 1092 cc = cr->cr_cc; 1093 cc->header.address = sc->ciss_controllers[i]; 1094 1095 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) 1096 break; 1097 1098 ciss_release_request(cr); 1099 } 1100 1101 if (error) 1102 ciss_printf(sc, "error resetting controller (%d)\n", error); 1103 1104 if (cr != NULL) 1105 ciss_release_request(cr); 1106 } 1107 1108 /************************************************************************ 1109 * Allocate memory for the adapter command structures, initialise 1110 * the request structures. 1111 * 1112 * Note that the entire set of commands are allocated in a single 1113 * contiguous slab. 1114 */ 1115 static int 1116 ciss_init_requests(struct ciss_softc *sc) 1117 { 1118 struct ciss_request *cr; 1119 int i; 1120 1121 debug_called(1); 1122 1123 if (bootverbose) 1124 ciss_printf(sc, "using %d of %d available commands\n", 1125 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands); 1126 1127 /* 1128 * Create the DMA tag for commands. 1129 */ 1130 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 1131 32, 0, /* alignment, boundary */ 1132 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 1133 BUS_SPACE_MAXADDR, /* highaddr */ 1134 NULL, NULL, /* filter, filterarg */ 1135 CISS_COMMAND_ALLOC_SIZE * 1136 sc->ciss_max_requests, 1, /* maxsize, nsegments */ 1137 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 1138 0, /* flags */ 1139 NULL, NULL, /* lockfunc, lockarg */ 1140 &sc->ciss_command_dmat)) { 1141 ciss_printf(sc, "can't allocate command DMA tag\n"); 1142 return(ENOMEM); 1143 } 1144 /* 1145 * Allocate memory and make it available for DMA. 1146 */ 1147 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command, 1148 BUS_DMA_NOWAIT, &sc->ciss_command_map)) { 1149 ciss_printf(sc, "can't allocate command memory\n"); 1150 return(ENOMEM); 1151 } 1152 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map,sc->ciss_command, 1153 CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests, 1154 ciss_command_map_helper, &sc->ciss_command_phys, 0); 1155 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests); 1156 1157 /* 1158 * Set up the request and command structures, push requests onto 1159 * the free queue. 1160 */ 1161 for (i = 1; i < sc->ciss_max_requests; i++) { 1162 cr = &sc->ciss_request[i]; 1163 cr->cr_sc = sc; 1164 cr->cr_tag = i; 1165 cr->cr_cc = (struct ciss_command *)((uintptr_t)sc->ciss_command + 1166 CISS_COMMAND_ALLOC_SIZE * i); 1167 cr->cr_ccphys = sc->ciss_command_phys + CISS_COMMAND_ALLOC_SIZE * i; 1168 bus_dmamap_create(sc->ciss_buffer_dmat, 0, &cr->cr_datamap); 1169 ciss_enqueue_free(cr); 1170 } 1171 return(0); 1172 } 1173 1174 static void 1175 ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1176 { 1177 uint32_t *addr; 1178 1179 addr = arg; 1180 *addr = segs[0].ds_addr; 1181 } 1182 1183 /************************************************************************ 1184 * Identify the adapter, print some information about it. 1185 */ 1186 static int 1187 ciss_identify_adapter(struct ciss_softc *sc) 1188 { 1189 struct ciss_request *cr; 1190 int error, command_status; 1191 1192 debug_called(1); 1193 1194 cr = NULL; 1195 1196 /* 1197 * Get a request, allocate storage for the adapter data. 1198 */ 1199 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR, 1200 (void **)&sc->ciss_id, 1201 sizeof(*sc->ciss_id))) != 0) 1202 goto out; 1203 1204 /* 1205 * Submit the request and wait for it to complete. 1206 */ 1207 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1208 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error); 1209 goto out; 1210 } 1211 1212 /* 1213 * Check response. 1214 */ 1215 ciss_report_request(cr, &command_status, NULL); 1216 switch(command_status) { 1217 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1218 break; 1219 case CISS_CMD_STATUS_DATA_UNDERRUN: 1220 case CISS_CMD_STATUS_DATA_OVERRUN: 1221 ciss_printf(sc, "data over/underrun reading adapter information\n"); 1222 default: 1223 ciss_printf(sc, "error reading adapter information (%s)\n", 1224 ciss_name_command_status(command_status)); 1225 error = EIO; 1226 goto out; 1227 } 1228 1229 /* sanity-check reply */ 1230 if (!(sc->ciss_id->controller_flags & CONTROLLER_FLAGS_BIG_MAP_SUPPORT)) { 1231 ciss_printf(sc, "adapter does not support BIG_MAP\n"); 1232 error = ENXIO; 1233 goto out; 1234 } 1235 1236 #if 0 1237 /* XXX later revisions may not need this */ 1238 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH; 1239 #endif 1240 1241 /* XXX only really required for old 5300 adapters? */ 1242 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT; 1243 1244 /* 1245 * Earlier controller specs do not contain these config 1246 * entries, so assume that a 0 means its old and assign 1247 * these values to the defaults that were established 1248 * when this driver was developed for them 1249 */ 1250 if (sc->ciss_cfg->max_logical_supported == 0) 1251 sc->ciss_cfg->max_logical_supported = CISS_MAX_LOGICAL; 1252 if (sc->ciss_cfg->max_physical_supported == 0) 1253 sc->ciss_cfg->max_physical_supported = CISS_MAX_PHYSICAL; 1254 /* print information */ 1255 if (bootverbose) { 1256 ciss_printf(sc, " %d logical drive%s configured\n", 1257 sc->ciss_id->configured_logical_drives, 1258 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s"); 1259 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision); 1260 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_chip_count); 1261 1262 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature); 1263 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence); 1264 ciss_printf(sc, " supported I/O methods 0x%b\n", 1265 sc->ciss_cfg->supported_methods, 1266 "\20\1READY\2simple\3performant\4MEMQ\n"); 1267 ciss_printf(sc, " active I/O method 0x%b\n", 1268 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n"); 1269 ciss_printf(sc, " 4G page base 0x%08x\n", 1270 sc->ciss_cfg->command_physlimit); 1271 ciss_printf(sc, " interrupt coalesce delay %dus\n", 1272 sc->ciss_cfg->interrupt_coalesce_delay); 1273 ciss_printf(sc, " interrupt coalesce count %d\n", 1274 sc->ciss_cfg->interrupt_coalesce_count); 1275 ciss_printf(sc, " max outstanding commands %d\n", 1276 sc->ciss_cfg->max_outstanding_commands); 1277 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types, 1278 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n"); 1279 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name); 1280 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat); 1281 ciss_printf(sc, " max logical logical volumes: %d\n", sc->ciss_cfg->max_logical_supported); 1282 ciss_printf(sc, " max physical disks supported: %d\n", sc->ciss_cfg->max_physical_supported); 1283 ciss_printf(sc, " max physical disks per logical volume: %d\n", sc->ciss_cfg->max_physical_per_logical); 1284 ciss_printf(sc, " JBOD Support is %s\n", (sc->ciss_id->uiYetMoreControllerFlags & YMORE_CONTROLLER_FLAGS_JBOD_SUPPORTED) ? 1285 "Available" : "Unavailable"); 1286 ciss_printf(sc, " JBOD Mode is %s\n", (sc->ciss_id->PowerUPNvramFlags & PWR_UP_FLAG_JBOD_ENABLED) ? 1287 "Enabled" : "Disabled"); 1288 } 1289 1290 out: 1291 if (error) { 1292 if (sc->ciss_id != NULL) { 1293 free(sc->ciss_id, CISS_MALLOC_CLASS); 1294 sc->ciss_id = NULL; 1295 } 1296 } 1297 if (cr != NULL) 1298 ciss_release_request(cr); 1299 return(error); 1300 } 1301 1302 /************************************************************************ 1303 * Helper routine for generating a list of logical and physical luns. 1304 */ 1305 static struct ciss_lun_report * 1306 ciss_report_luns(struct ciss_softc *sc, int opcode, int nunits) 1307 { 1308 struct ciss_request *cr; 1309 struct ciss_command *cc; 1310 struct ciss_report_cdb *crc; 1311 struct ciss_lun_report *cll; 1312 int command_status; 1313 int report_size; 1314 int error = 0; 1315 1316 debug_called(1); 1317 1318 cr = NULL; 1319 cll = NULL; 1320 1321 /* 1322 * Get a request, allocate storage for the address list. 1323 */ 1324 if ((error = ciss_get_request(sc, &cr)) != 0) 1325 goto out; 1326 report_size = sizeof(*cll) + nunits * sizeof(union ciss_device_address); 1327 if ((cll = malloc(report_size, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 1328 ciss_printf(sc, "can't allocate memory for lun report\n"); 1329 error = ENOMEM; 1330 goto out; 1331 } 1332 1333 /* 1334 * Build the Report Logical/Physical LUNs command. 1335 */ 1336 cc = cr->cr_cc; 1337 cr->cr_data = cll; 1338 cr->cr_length = report_size; 1339 cr->cr_flags = CISS_REQ_DATAIN; 1340 1341 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 1342 cc->header.address.physical.bus = 0; 1343 cc->header.address.physical.target = 0; 1344 cc->cdb.cdb_length = sizeof(*crc); 1345 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1346 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1347 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1348 cc->cdb.timeout = 30; /* XXX better suggestions? */ 1349 1350 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]); 1351 bzero(crc, sizeof(*crc)); 1352 crc->opcode = opcode; 1353 crc->length = htonl(report_size); /* big-endian field */ 1354 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */ 1355 1356 /* 1357 * Submit the request and wait for it to complete. (timeout 1358 * here should be much greater than above) 1359 */ 1360 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1361 ciss_printf(sc, "error sending %d LUN command (%d)\n", opcode, error); 1362 goto out; 1363 } 1364 1365 /* 1366 * Check response. Note that data over/underrun is OK. 1367 */ 1368 ciss_report_request(cr, &command_status, NULL); 1369 switch(command_status) { 1370 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1371 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */ 1372 break; 1373 case CISS_CMD_STATUS_DATA_OVERRUN: 1374 ciss_printf(sc, "WARNING: more units than driver limit (%d)\n", 1375 sc->ciss_cfg->max_logical_supported); 1376 break; 1377 default: 1378 ciss_printf(sc, "error detecting logical drive configuration (%s)\n", 1379 ciss_name_command_status(command_status)); 1380 error = EIO; 1381 goto out; 1382 } 1383 ciss_release_request(cr); 1384 cr = NULL; 1385 1386 out: 1387 if (cr != NULL) 1388 ciss_release_request(cr); 1389 if (error && cll != NULL) { 1390 free(cll, CISS_MALLOC_CLASS); 1391 cll = NULL; 1392 } 1393 return(cll); 1394 } 1395 1396 /************************************************************************ 1397 * Find logical drives on the adapter. 1398 */ 1399 static int 1400 ciss_init_logical(struct ciss_softc *sc) 1401 { 1402 struct ciss_lun_report *cll; 1403 int error = 0, i, j; 1404 int ndrives; 1405 1406 debug_called(1); 1407 1408 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 1409 sc->ciss_cfg->max_logical_supported); 1410 if (cll == NULL) { 1411 error = ENXIO; 1412 goto out; 1413 } 1414 1415 /* sanity-check reply */ 1416 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1417 if ((ndrives < 0) || (ndrives > sc->ciss_cfg->max_logical_supported)) { 1418 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n", 1419 ndrives, sc->ciss_cfg->max_logical_supported); 1420 error = ENXIO; 1421 goto out; 1422 } 1423 1424 /* 1425 * Save logical drive information. 1426 */ 1427 if (bootverbose) { 1428 ciss_printf(sc, "%d logical drive%s\n", 1429 ndrives, (ndrives > 1 || ndrives == 0) ? "s" : ""); 1430 } 1431 1432 sc->ciss_logical = 1433 malloc(sc->ciss_max_logical_bus * sizeof(struct ciss_ldrive *), 1434 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1435 if (sc->ciss_logical == NULL) { 1436 error = ENXIO; 1437 goto out; 1438 } 1439 1440 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1441 sc->ciss_logical[i] = 1442 malloc(sc->ciss_cfg->max_logical_supported * 1443 sizeof(struct ciss_ldrive), 1444 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1445 if (sc->ciss_logical[i] == NULL) { 1446 error = ENXIO; 1447 goto out; 1448 } 1449 1450 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) 1451 sc->ciss_logical[i][j].cl_status = CISS_LD_NONEXISTENT; 1452 } 1453 1454 1455 for (i = 0; i < sc->ciss_cfg->max_logical_supported; i++) { 1456 if (i < ndrives) { 1457 struct ciss_ldrive *ld; 1458 int bus, target; 1459 1460 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 1461 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 1462 ld = &sc->ciss_logical[bus][target]; 1463 1464 ld->cl_address = cll->lun[i]; 1465 ld->cl_controller = &sc->ciss_controllers[bus]; 1466 if (ciss_identify_logical(sc, ld) != 0) 1467 continue; 1468 /* 1469 * If the drive has had media exchanged, we should bring it online. 1470 */ 1471 if (ld->cl_lstatus->media_exchanged) 1472 ciss_accept_media(sc, ld); 1473 1474 } 1475 } 1476 1477 out: 1478 if (cll != NULL) 1479 free(cll, CISS_MALLOC_CLASS); 1480 return(error); 1481 } 1482 1483 static int 1484 ciss_init_physical(struct ciss_softc *sc) 1485 { 1486 struct ciss_lun_report *cll; 1487 int error = 0, i; 1488 int nphys; 1489 int bus, target; 1490 1491 debug_called(1); 1492 1493 bus = 0; 1494 target = 0; 1495 1496 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 1497 sc->ciss_cfg->max_physical_supported); 1498 if (cll == NULL) { 1499 error = ENXIO; 1500 goto out; 1501 } 1502 1503 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1504 1505 if (bootverbose) { 1506 ciss_printf(sc, "%d physical device%s\n", 1507 nphys, (nphys > 1 || nphys == 0) ? "s" : ""); 1508 } 1509 1510 /* 1511 * Figure out the bus mapping. 1512 * Logical buses include both the local logical bus for local arrays and 1513 * proxy buses for remote arrays. Physical buses are numbered by the 1514 * controller and represent physical buses that hold physical devices. 1515 * We shift these bus numbers so that everything fits into a single flat 1516 * numbering space for CAM. Logical buses occupy the first 32 CAM bus 1517 * numbers, and the physical bus numbers are shifted to be above that. 1518 * This results in the various driver arrays being indexed as follows: 1519 * 1520 * ciss_controllers[] - indexed by logical bus 1521 * ciss_cam_sim[] - indexed by both logical and physical, with physical 1522 * being shifted by 32. 1523 * ciss_logical[][] - indexed by logical bus 1524 * ciss_physical[][] - indexed by physical bus 1525 * 1526 * XXX This is getting more and more hackish. CISS really doesn't play 1527 * well with a standard SCSI model; devices are addressed via magic 1528 * cookies, not via b/t/l addresses. Since there is no way to store 1529 * the cookie in the CAM device object, we have to keep these lookup 1530 * tables handy so that the devices can be found quickly at the cost 1531 * of wasting memory and having a convoluted lookup scheme. This 1532 * driver should probably be converted to block interface. 1533 */ 1534 /* 1535 * If the L2 and L3 SCSI addresses are 0, this signifies a proxy 1536 * controller. A proxy controller is another physical controller 1537 * behind the primary PCI controller. We need to know about this 1538 * so that BMIC commands can be properly targeted. There can be 1539 * proxy controllers attached to a single PCI controller, so 1540 * find the highest numbered one so the array can be properly 1541 * sized. 1542 */ 1543 sc->ciss_max_logical_bus = 1; 1544 for (i = 0; i < nphys; i++) { 1545 if (cll->lun[i].physical.extra_address == 0) { 1546 bus = cll->lun[i].physical.bus; 1547 sc->ciss_max_logical_bus = max(sc->ciss_max_logical_bus, bus) + 1; 1548 } else { 1549 bus = CISS_EXTRA_BUS2(cll->lun[i].physical.extra_address); 1550 sc->ciss_max_physical_bus = max(sc->ciss_max_physical_bus, bus); 1551 } 1552 } 1553 1554 sc->ciss_controllers = 1555 malloc(sc->ciss_max_logical_bus * sizeof (union ciss_device_address), 1556 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1557 1558 if (sc->ciss_controllers == NULL) { 1559 ciss_printf(sc, "Could not allocate memory for controller map\n"); 1560 error = ENOMEM; 1561 goto out; 1562 } 1563 1564 /* setup a map of controller addresses */ 1565 for (i = 0; i < nphys; i++) { 1566 if (cll->lun[i].physical.extra_address == 0) { 1567 sc->ciss_controllers[cll->lun[i].physical.bus] = cll->lun[i]; 1568 } 1569 } 1570 1571 sc->ciss_physical = 1572 malloc(sc->ciss_max_physical_bus * sizeof(struct ciss_pdrive *), 1573 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1574 if (sc->ciss_physical == NULL) { 1575 ciss_printf(sc, "Could not allocate memory for physical device map\n"); 1576 error = ENOMEM; 1577 goto out; 1578 } 1579 1580 for (i = 0; i < sc->ciss_max_physical_bus; i++) { 1581 sc->ciss_physical[i] = 1582 malloc(sizeof(struct ciss_pdrive) * CISS_MAX_PHYSTGT, 1583 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1584 if (sc->ciss_physical[i] == NULL) { 1585 ciss_printf(sc, "Could not allocate memory for target map\n"); 1586 error = ENOMEM; 1587 goto out; 1588 } 1589 } 1590 1591 ciss_filter_physical(sc, cll); 1592 1593 out: 1594 if (cll != NULL) 1595 free(cll, CISS_MALLOC_CLASS); 1596 1597 return(error); 1598 } 1599 1600 static int 1601 ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll) 1602 { 1603 u_int32_t ea; 1604 int i, nphys; 1605 int bus, target; 1606 1607 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1608 for (i = 0; i < nphys; i++) { 1609 if (cll->lun[i].physical.extra_address == 0) 1610 continue; 1611 1612 /* 1613 * Filter out devices that we don't want. Level 3 LUNs could 1614 * probably be supported, but the docs don't give enough of a 1615 * hint to know how. 1616 * 1617 * The mode field of the physical address is likely set to have 1618 * hard disks masked out. Honor it unless the user has overridden 1619 * us with the tunable. We also munge the inquiry data for these 1620 * disks so that they only show up as passthrough devices. Keeping 1621 * them visible in this fashion is useful for doing things like 1622 * flashing firmware. 1623 */ 1624 ea = cll->lun[i].physical.extra_address; 1625 if ((CISS_EXTRA_BUS3(ea) != 0) || (CISS_EXTRA_TARGET3(ea) != 0) || 1626 (CISS_EXTRA_MODE2(ea) == 0x3)) 1627 continue; 1628 if ((ciss_expose_hidden_physical == 0) && 1629 (cll->lun[i].physical.mode == CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL)) 1630 continue; 1631 1632 /* 1633 * Note: CISS firmware numbers physical busses starting at '1', not 1634 * '0'. This numbering is internal to the firmware and is only 1635 * used as a hint here. 1636 */ 1637 bus = CISS_EXTRA_BUS2(ea) - 1; 1638 target = CISS_EXTRA_TARGET2(ea); 1639 sc->ciss_physical[bus][target].cp_address = cll->lun[i]; 1640 sc->ciss_physical[bus][target].cp_online = 1; 1641 } 1642 1643 return (0); 1644 } 1645 1646 static int 1647 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1648 { 1649 struct ciss_request *cr; 1650 struct ciss_command *cc; 1651 struct scsi_inquiry *inq; 1652 int error; 1653 int command_status; 1654 1655 cr = NULL; 1656 1657 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry)); 1658 1659 if ((error = ciss_get_request(sc, &cr)) != 0) 1660 goto out; 1661 1662 cc = cr->cr_cc; 1663 cr->cr_data = &ld->cl_geometry; 1664 cr->cr_length = sizeof(ld->cl_geometry); 1665 cr->cr_flags = CISS_REQ_DATAIN; 1666 1667 cc->header.address = ld->cl_address; 1668 cc->cdb.cdb_length = 6; 1669 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1670 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1671 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1672 cc->cdb.timeout = 30; 1673 1674 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]); 1675 inq->opcode = INQUIRY; 1676 inq->byte2 = SI_EVPD; 1677 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY; 1678 scsi_ulto2b(sizeof(ld->cl_geometry), inq->length); 1679 1680 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1681 ciss_printf(sc, "error getting geometry (%d)\n", error); 1682 goto out; 1683 } 1684 1685 ciss_report_request(cr, &command_status, NULL); 1686 switch(command_status) { 1687 case CISS_CMD_STATUS_SUCCESS: 1688 case CISS_CMD_STATUS_DATA_UNDERRUN: 1689 break; 1690 case CISS_CMD_STATUS_DATA_OVERRUN: 1691 ciss_printf(sc, "WARNING: Data overrun\n"); 1692 break; 1693 default: 1694 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n", 1695 ciss_name_command_status(command_status)); 1696 break; 1697 } 1698 1699 out: 1700 if (cr != NULL) 1701 ciss_release_request(cr); 1702 return(error); 1703 } 1704 /************************************************************************ 1705 * Identify a logical drive, initialise state related to it. 1706 */ 1707 static int 1708 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1709 { 1710 struct ciss_request *cr; 1711 struct ciss_command *cc; 1712 struct ciss_bmic_cdb *cbc; 1713 int error, command_status; 1714 1715 debug_called(1); 1716 1717 cr = NULL; 1718 1719 /* 1720 * Build a BMIC request to fetch the drive ID. 1721 */ 1722 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE, 1723 (void **)&ld->cl_ldrive, 1724 sizeof(*ld->cl_ldrive))) != 0) 1725 goto out; 1726 cc = cr->cr_cc; 1727 cc->header.address = *ld->cl_controller; /* target controller */ 1728 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1729 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1730 1731 /* 1732 * Submit the request and wait for it to complete. 1733 */ 1734 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1735 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error); 1736 goto out; 1737 } 1738 1739 /* 1740 * Check response. 1741 */ 1742 ciss_report_request(cr, &command_status, NULL); 1743 switch(command_status) { 1744 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1745 break; 1746 case CISS_CMD_STATUS_DATA_UNDERRUN: 1747 case CISS_CMD_STATUS_DATA_OVERRUN: 1748 ciss_printf(sc, "data over/underrun reading logical drive ID\n"); 1749 default: 1750 ciss_printf(sc, "error reading logical drive ID (%s)\n", 1751 ciss_name_command_status(command_status)); 1752 error = EIO; 1753 goto out; 1754 } 1755 ciss_release_request(cr); 1756 cr = NULL; 1757 1758 /* 1759 * Build a CISS BMIC command to get the logical drive status. 1760 */ 1761 if ((error = ciss_get_ldrive_status(sc, ld)) != 0) 1762 goto out; 1763 1764 /* 1765 * Get the logical drive geometry. 1766 */ 1767 if ((error = ciss_inquiry_logical(sc, ld)) != 0) 1768 goto out; 1769 1770 /* 1771 * Print the drive's basic characteristics. 1772 */ 1773 if (bootverbose) { 1774 ciss_printf(sc, "logical drive (b%dt%d): %s, %dMB ", 1775 CISS_LUN_TO_BUS(ld->cl_address.logical.lun), 1776 CISS_LUN_TO_TARGET(ld->cl_address.logical.lun), 1777 ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance), 1778 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) * 1779 ld->cl_ldrive->block_size)); 1780 1781 ciss_print_ldrive(sc, ld); 1782 } 1783 out: 1784 if (error != 0) { 1785 /* make the drive not-exist */ 1786 ld->cl_status = CISS_LD_NONEXISTENT; 1787 if (ld->cl_ldrive != NULL) { 1788 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 1789 ld->cl_ldrive = NULL; 1790 } 1791 if (ld->cl_lstatus != NULL) { 1792 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 1793 ld->cl_lstatus = NULL; 1794 } 1795 } 1796 if (cr != NULL) 1797 ciss_release_request(cr); 1798 1799 return(error); 1800 } 1801 1802 /************************************************************************ 1803 * Get status for a logical drive. 1804 * 1805 * XXX should we also do this in response to Test Unit Ready? 1806 */ 1807 static int 1808 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld) 1809 { 1810 struct ciss_request *cr; 1811 struct ciss_command *cc; 1812 struct ciss_bmic_cdb *cbc; 1813 int error, command_status; 1814 1815 /* 1816 * Build a CISS BMIC command to get the logical drive status. 1817 */ 1818 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS, 1819 (void **)&ld->cl_lstatus, 1820 sizeof(*ld->cl_lstatus))) != 0) 1821 goto out; 1822 cc = cr->cr_cc; 1823 cc->header.address = *ld->cl_controller; /* target controller */ 1824 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1825 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1826 1827 /* 1828 * Submit the request and wait for it to complete. 1829 */ 1830 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1831 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1832 goto out; 1833 } 1834 1835 /* 1836 * Check response. 1837 */ 1838 ciss_report_request(cr, &command_status, NULL); 1839 switch(command_status) { 1840 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1841 break; 1842 case CISS_CMD_STATUS_DATA_UNDERRUN: 1843 case CISS_CMD_STATUS_DATA_OVERRUN: 1844 ciss_printf(sc, "data over/underrun reading logical drive status\n"); 1845 default: 1846 ciss_printf(sc, "error reading logical drive status (%s)\n", 1847 ciss_name_command_status(command_status)); 1848 error = EIO; 1849 goto out; 1850 } 1851 1852 /* 1853 * Set the drive's summary status based on the returned status. 1854 * 1855 * XXX testing shows that a failed JBOD drive comes back at next 1856 * boot in "queued for expansion" mode. WTF? 1857 */ 1858 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status); 1859 1860 out: 1861 if (cr != NULL) 1862 ciss_release_request(cr); 1863 return(error); 1864 } 1865 1866 /************************************************************************ 1867 * Notify the adapter of a config update. 1868 */ 1869 static int 1870 ciss_update_config(struct ciss_softc *sc) 1871 { 1872 int i; 1873 1874 debug_called(1); 1875 1876 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE); 1877 for (i = 0; i < 1000; i++) { 1878 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) & 1879 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) { 1880 return(0); 1881 } 1882 DELAY(1000); 1883 } 1884 return(1); 1885 } 1886 1887 /************************************************************************ 1888 * Accept new media into a logical drive. 1889 * 1890 * XXX The drive has previously been offline; it would be good if we 1891 * could make sure it's not open right now. 1892 */ 1893 static int 1894 ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld) 1895 { 1896 struct ciss_request *cr; 1897 struct ciss_command *cc; 1898 struct ciss_bmic_cdb *cbc; 1899 int command_status; 1900 int error = 0, ldrive; 1901 1902 ldrive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1903 1904 debug(0, "bringing logical drive %d back online", ldrive); 1905 1906 /* 1907 * Build a CISS BMIC command to bring the drive back online. 1908 */ 1909 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA, 1910 NULL, 0)) != 0) 1911 goto out; 1912 cc = cr->cr_cc; 1913 cc->header.address = *ld->cl_controller; /* target controller */ 1914 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1915 cbc->log_drive = ldrive; 1916 1917 /* 1918 * Submit the request and wait for it to complete. 1919 */ 1920 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1921 ciss_printf(sc, "error sending BMIC ACCEPT MEDIA command (%d)\n", error); 1922 goto out; 1923 } 1924 1925 /* 1926 * Check response. 1927 */ 1928 ciss_report_request(cr, &command_status, NULL); 1929 switch(command_status) { 1930 case CISS_CMD_STATUS_SUCCESS: /* all OK */ 1931 /* we should get a logical drive status changed event here */ 1932 break; 1933 default: 1934 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n", 1935 ciss_name_command_status(command_status)); 1936 break; 1937 } 1938 1939 out: 1940 if (cr != NULL) 1941 ciss_release_request(cr); 1942 return(error); 1943 } 1944 1945 /************************************************************************ 1946 * Release adapter resources. 1947 */ 1948 static void 1949 ciss_free(struct ciss_softc *sc) 1950 { 1951 struct ciss_request *cr; 1952 int i, j; 1953 1954 debug_called(1); 1955 1956 /* we're going away */ 1957 sc->ciss_flags |= CISS_FLAG_ABORTING; 1958 1959 /* terminate the periodic heartbeat routine */ 1960 callout_stop(&sc->ciss_periodic); 1961 1962 /* cancel the Event Notify chain */ 1963 ciss_notify_abort(sc); 1964 1965 ciss_kill_notify_thread(sc); 1966 1967 /* disconnect from CAM */ 1968 if (sc->ciss_cam_sim) { 1969 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1970 if (sc->ciss_cam_sim[i]) { 1971 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1972 cam_sim_free(sc->ciss_cam_sim[i], 0); 1973 } 1974 } 1975 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 1976 CISS_PHYSICAL_BASE; i++) { 1977 if (sc->ciss_cam_sim[i]) { 1978 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1979 cam_sim_free(sc->ciss_cam_sim[i], 0); 1980 } 1981 } 1982 free(sc->ciss_cam_sim, CISS_MALLOC_CLASS); 1983 } 1984 if (sc->ciss_cam_devq) 1985 cam_simq_free(sc->ciss_cam_devq); 1986 1987 /* remove the control device */ 1988 mtx_unlock(&sc->ciss_mtx); 1989 if (sc->ciss_dev_t != NULL) 1990 destroy_dev(sc->ciss_dev_t); 1991 1992 /* Final cleanup of the callout. */ 1993 callout_drain(&sc->ciss_periodic); 1994 mtx_destroy(&sc->ciss_mtx); 1995 1996 /* free the controller data */ 1997 if (sc->ciss_id != NULL) 1998 free(sc->ciss_id, CISS_MALLOC_CLASS); 1999 2000 /* release I/O resources */ 2001 if (sc->ciss_regs_resource != NULL) 2002 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 2003 sc->ciss_regs_rid, sc->ciss_regs_resource); 2004 if (sc->ciss_cfg_resource != NULL) 2005 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 2006 sc->ciss_cfg_rid, sc->ciss_cfg_resource); 2007 if (sc->ciss_intr != NULL) 2008 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr); 2009 if (sc->ciss_irq_resource != NULL) 2010 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ, 2011 sc->ciss_irq_rid[0], sc->ciss_irq_resource); 2012 if (sc->ciss_msi) 2013 pci_release_msi(sc->ciss_dev); 2014 2015 while ((cr = ciss_dequeue_free(sc)) != NULL) 2016 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap); 2017 if (sc->ciss_buffer_dmat) 2018 bus_dma_tag_destroy(sc->ciss_buffer_dmat); 2019 2020 /* destroy command memory and DMA tag */ 2021 if (sc->ciss_command != NULL) { 2022 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map); 2023 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map); 2024 } 2025 if (sc->ciss_command_dmat) 2026 bus_dma_tag_destroy(sc->ciss_command_dmat); 2027 2028 if (sc->ciss_reply) { 2029 bus_dmamap_unload(sc->ciss_reply_dmat, sc->ciss_reply_map); 2030 bus_dmamem_free(sc->ciss_reply_dmat, sc->ciss_reply, sc->ciss_reply_map); 2031 } 2032 if (sc->ciss_reply_dmat) 2033 bus_dma_tag_destroy(sc->ciss_reply_dmat); 2034 2035 /* destroy DMA tags */ 2036 if (sc->ciss_parent_dmat) 2037 bus_dma_tag_destroy(sc->ciss_parent_dmat); 2038 if (sc->ciss_logical) { 2039 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 2040 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) { 2041 if (sc->ciss_logical[i][j].cl_ldrive) 2042 free(sc->ciss_logical[i][j].cl_ldrive, CISS_MALLOC_CLASS); 2043 if (sc->ciss_logical[i][j].cl_lstatus) 2044 free(sc->ciss_logical[i][j].cl_lstatus, CISS_MALLOC_CLASS); 2045 } 2046 free(sc->ciss_logical[i], CISS_MALLOC_CLASS); 2047 } 2048 free(sc->ciss_logical, CISS_MALLOC_CLASS); 2049 } 2050 2051 if (sc->ciss_physical) { 2052 for (i = 0; i < sc->ciss_max_physical_bus; i++) 2053 free(sc->ciss_physical[i], CISS_MALLOC_CLASS); 2054 free(sc->ciss_physical, CISS_MALLOC_CLASS); 2055 } 2056 2057 if (sc->ciss_controllers) 2058 free(sc->ciss_controllers, CISS_MALLOC_CLASS); 2059 2060 } 2061 2062 /************************************************************************ 2063 * Give a command to the adapter. 2064 * 2065 * Note that this uses the simple transport layer directly. If we 2066 * want to add support for other layers, we'll need a switch of some 2067 * sort. 2068 * 2069 * Note that the simple transport layer has no way of refusing a 2070 * command; we only have as many request structures as the adapter 2071 * supports commands, so we don't have to check (this presumes that 2072 * the adapter can handle commands as fast as we throw them at it). 2073 */ 2074 static int 2075 ciss_start(struct ciss_request *cr) 2076 { 2077 struct ciss_command *cc; /* XXX debugging only */ 2078 int error; 2079 2080 cc = cr->cr_cc; 2081 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag); 2082 2083 /* 2084 * Map the request's data. 2085 */ 2086 if ((error = ciss_map_request(cr))) 2087 return(error); 2088 2089 #if 0 2090 ciss_print_request(cr); 2091 #endif 2092 2093 return(0); 2094 } 2095 2096 /************************************************************************ 2097 * Fetch completed request(s) from the adapter, queue them for 2098 * completion handling. 2099 * 2100 * Note that this uses the simple transport layer directly. If we 2101 * want to add support for other layers, we'll need a switch of some 2102 * sort. 2103 * 2104 * Note that the simple transport mechanism does not require any 2105 * reentrancy protection; the OPQ read is atomic. If there is a 2106 * chance of a race with something else that might move the request 2107 * off the busy list, then we will have to lock against that 2108 * (eg. timeouts, etc.) 2109 */ 2110 static void 2111 ciss_done(struct ciss_softc *sc, cr_qhead_t *qh) 2112 { 2113 struct ciss_request *cr; 2114 struct ciss_command *cc; 2115 u_int32_t tag, index; 2116 2117 debug_called(3); 2118 2119 /* 2120 * Loop quickly taking requests from the adapter and moving them 2121 * to the completed queue. 2122 */ 2123 for (;;) { 2124 2125 tag = CISS_TL_SIMPLE_FETCH_CMD(sc); 2126 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY) 2127 break; 2128 index = tag >> 2; 2129 debug(2, "completed command %d%s", index, 2130 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2131 if (index >= sc->ciss_max_requests) { 2132 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2133 continue; 2134 } 2135 cr = &(sc->ciss_request[index]); 2136 cc = cr->cr_cc; 2137 cc->header.host_tag = tag; /* not updated by adapter */ 2138 ciss_enqueue_complete(cr, qh); 2139 } 2140 2141 } 2142 2143 static void 2144 ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh) 2145 { 2146 struct ciss_request *cr; 2147 struct ciss_command *cc; 2148 u_int32_t tag, index; 2149 2150 debug_called(3); 2151 2152 /* 2153 * Loop quickly taking requests from the adapter and moving them 2154 * to the completed queue. 2155 */ 2156 for (;;) { 2157 tag = sc->ciss_reply[sc->ciss_rqidx]; 2158 if ((tag & CISS_CYCLE_MASK) != sc->ciss_cycle) 2159 break; 2160 index = tag >> 2; 2161 debug(2, "completed command %d%s\n", index, 2162 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2163 if (index < sc->ciss_max_requests) { 2164 cr = &(sc->ciss_request[index]); 2165 cc = cr->cr_cc; 2166 cc->header.host_tag = tag; /* not updated by adapter */ 2167 ciss_enqueue_complete(cr, qh); 2168 } else { 2169 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2170 } 2171 if (++sc->ciss_rqidx == sc->ciss_max_requests) { 2172 sc->ciss_rqidx = 0; 2173 sc->ciss_cycle ^= 1; 2174 } 2175 } 2176 2177 } 2178 2179 /************************************************************************ 2180 * Take an interrupt from the adapter. 2181 */ 2182 static void 2183 ciss_intr(void *arg) 2184 { 2185 cr_qhead_t qh; 2186 struct ciss_softc *sc = (struct ciss_softc *)arg; 2187 2188 /* 2189 * The only interrupt we recognise indicates that there are 2190 * entries in the outbound post queue. 2191 */ 2192 STAILQ_INIT(&qh); 2193 ciss_done(sc, &qh); 2194 mtx_lock(&sc->ciss_mtx); 2195 ciss_complete(sc, &qh); 2196 mtx_unlock(&sc->ciss_mtx); 2197 } 2198 2199 static void 2200 ciss_perf_intr(void *arg) 2201 { 2202 struct ciss_softc *sc = (struct ciss_softc *)arg; 2203 2204 /* Clear the interrupt and flush the bridges. Docs say that the flush 2205 * needs to be done twice, which doesn't seem right. 2206 */ 2207 CISS_TL_PERF_CLEAR_INT(sc); 2208 CISS_TL_PERF_FLUSH_INT(sc); 2209 2210 ciss_perf_msi_intr(sc); 2211 } 2212 2213 static void 2214 ciss_perf_msi_intr(void *arg) 2215 { 2216 cr_qhead_t qh; 2217 struct ciss_softc *sc = (struct ciss_softc *)arg; 2218 2219 STAILQ_INIT(&qh); 2220 ciss_perf_done(sc, &qh); 2221 mtx_lock(&sc->ciss_mtx); 2222 ciss_complete(sc, &qh); 2223 mtx_unlock(&sc->ciss_mtx); 2224 } 2225 2226 2227 /************************************************************************ 2228 * Process completed requests. 2229 * 2230 * Requests can be completed in three fashions: 2231 * 2232 * - by invoking a callback function (cr_complete is non-null) 2233 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set) 2234 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context 2235 */ 2236 static void 2237 ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh) 2238 { 2239 struct ciss_request *cr; 2240 2241 debug_called(2); 2242 2243 /* 2244 * Loop taking requests off the completed queue and performing 2245 * completion processing on them. 2246 */ 2247 for (;;) { 2248 if ((cr = ciss_dequeue_complete(sc, qh)) == NULL) 2249 break; 2250 ciss_unmap_request(cr); 2251 2252 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 2253 ciss_printf(sc, "WARNING: completing non-busy request\n"); 2254 cr->cr_flags &= ~CISS_REQ_BUSY; 2255 2256 /* 2257 * If the request has a callback, invoke it. 2258 */ 2259 if (cr->cr_complete != NULL) { 2260 cr->cr_complete(cr); 2261 continue; 2262 } 2263 2264 /* 2265 * If someone is sleeping on this request, wake them up. 2266 */ 2267 if (cr->cr_flags & CISS_REQ_SLEEP) { 2268 cr->cr_flags &= ~CISS_REQ_SLEEP; 2269 wakeup(cr); 2270 continue; 2271 } 2272 2273 /* 2274 * If someone is polling this request for completion, signal. 2275 */ 2276 if (cr->cr_flags & CISS_REQ_POLL) { 2277 cr->cr_flags &= ~CISS_REQ_POLL; 2278 continue; 2279 } 2280 2281 /* 2282 * Give up and throw the request back on the free queue. This 2283 * should never happen; resources will probably be lost. 2284 */ 2285 ciss_printf(sc, "WARNING: completed command with no submitter\n"); 2286 ciss_enqueue_free(cr); 2287 } 2288 } 2289 2290 /************************************************************************ 2291 * Report on the completion status of a request, and pass back SCSI 2292 * and command status values. 2293 */ 2294 static int 2295 _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func) 2296 { 2297 struct ciss_command *cc; 2298 struct ciss_error_info *ce; 2299 2300 debug_called(2); 2301 2302 cc = cr->cr_cc; 2303 ce = (struct ciss_error_info *)&(cc->sg[0]); 2304 2305 /* 2306 * We don't consider data under/overrun an error for the Report 2307 * Logical/Physical LUNs commands. 2308 */ 2309 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) && 2310 ((ce->command_status == CISS_CMD_STATUS_DATA_OVERRUN) || 2311 (ce->command_status == CISS_CMD_STATUS_DATA_UNDERRUN)) && 2312 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) || 2313 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS) || 2314 (cc->cdb.cdb[0] == INQUIRY))) { 2315 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR; 2316 debug(2, "ignoring irrelevant under/overrun error"); 2317 } 2318 2319 /* 2320 * Check the command's error bit, if clear, there's no status and 2321 * everything is OK. 2322 */ 2323 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) { 2324 if (scsi_status != NULL) 2325 *scsi_status = SCSI_STATUS_OK; 2326 if (command_status != NULL) 2327 *command_status = CISS_CMD_STATUS_SUCCESS; 2328 return(0); 2329 } else { 2330 if (command_status != NULL) 2331 *command_status = ce->command_status; 2332 if (scsi_status != NULL) { 2333 if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) { 2334 *scsi_status = ce->scsi_status; 2335 } else { 2336 *scsi_status = -1; 2337 } 2338 } 2339 if (bootverbose) 2340 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n", 2341 ce->command_status, ciss_name_command_status(ce->command_status), 2342 ce->scsi_status); 2343 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) { 2344 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x, function %s\n", 2345 ce->additional_error_info.invalid_command.offense_size, 2346 ce->additional_error_info.invalid_command.offense_offset, 2347 ce->additional_error_info.invalid_command.offense_value, 2348 func); 2349 } 2350 } 2351 #if 0 2352 ciss_print_request(cr); 2353 #endif 2354 return(1); 2355 } 2356 2357 /************************************************************************ 2358 * Issue a request and don't return until it's completed. 2359 * 2360 * Depending on adapter status, we may poll or sleep waiting for 2361 * completion. 2362 */ 2363 static int 2364 ciss_synch_request(struct ciss_request *cr, int timeout) 2365 { 2366 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) { 2367 return(ciss_wait_request(cr, timeout)); 2368 } else { 2369 return(ciss_poll_request(cr, timeout)); 2370 } 2371 } 2372 2373 /************************************************************************ 2374 * Issue a request and poll for completion. 2375 * 2376 * Timeout in milliseconds. 2377 */ 2378 static int 2379 ciss_poll_request(struct ciss_request *cr, int timeout) 2380 { 2381 cr_qhead_t qh; 2382 struct ciss_softc *sc; 2383 int error; 2384 2385 debug_called(2); 2386 2387 STAILQ_INIT(&qh); 2388 sc = cr->cr_sc; 2389 cr->cr_flags |= CISS_REQ_POLL; 2390 if ((error = ciss_start(cr)) != 0) 2391 return(error); 2392 2393 do { 2394 if (sc->ciss_perf) 2395 ciss_perf_done(sc, &qh); 2396 else 2397 ciss_done(sc, &qh); 2398 ciss_complete(sc, &qh); 2399 if (!(cr->cr_flags & CISS_REQ_POLL)) 2400 return(0); 2401 DELAY(1000); 2402 } while (timeout-- >= 0); 2403 return(EWOULDBLOCK); 2404 } 2405 2406 /************************************************************************ 2407 * Issue a request and sleep waiting for completion. 2408 * 2409 * Timeout in milliseconds. Note that a spurious wakeup will reset 2410 * the timeout. 2411 */ 2412 static int 2413 ciss_wait_request(struct ciss_request *cr, int timeout) 2414 { 2415 int error; 2416 2417 debug_called(2); 2418 2419 cr->cr_flags |= CISS_REQ_SLEEP; 2420 if ((error = ciss_start(cr)) != 0) 2421 return(error); 2422 2423 while ((cr->cr_flags & CISS_REQ_SLEEP) && (error != EWOULDBLOCK)) { 2424 error = msleep_sbt(cr, &cr->cr_sc->ciss_mtx, PRIBIO, "cissREQ", 2425 SBT_1MS * timeout, 0, 0); 2426 } 2427 return(error); 2428 } 2429 2430 #if 0 2431 /************************************************************************ 2432 * Abort a request. Note that a potential exists here to race the 2433 * request being completed; the caller must deal with this. 2434 */ 2435 static int 2436 ciss_abort_request(struct ciss_request *ar) 2437 { 2438 struct ciss_request *cr; 2439 struct ciss_command *cc; 2440 struct ciss_message_cdb *cmc; 2441 int error; 2442 2443 debug_called(1); 2444 2445 /* get a request */ 2446 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0) 2447 return(error); 2448 2449 /* build the abort command */ 2450 cc = cr->cr_cc; 2451 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */ 2452 cc->header.address.physical.target = 0; 2453 cc->header.address.physical.bus = 0; 2454 cc->cdb.cdb_length = sizeof(*cmc); 2455 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 2456 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2457 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2458 cc->cdb.timeout = 30; 2459 2460 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]); 2461 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT; 2462 cmc->type = CISS_MESSAGE_ABORT_TASK; 2463 cmc->abort_tag = ar->cr_tag; /* endianness?? */ 2464 2465 /* 2466 * Send the request and wait for a response. If we believe we 2467 * aborted the request OK, clear the flag that indicates it's 2468 * running. 2469 */ 2470 error = ciss_synch_request(cr, 35 * 1000); 2471 if (!error) 2472 error = ciss_report_request(cr, NULL, NULL); 2473 ciss_release_request(cr); 2474 2475 return(error); 2476 } 2477 #endif 2478 2479 2480 /************************************************************************ 2481 * Fetch and initialise a request 2482 */ 2483 static int 2484 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp) 2485 { 2486 struct ciss_request *cr; 2487 2488 debug_called(2); 2489 2490 /* 2491 * Get a request and clean it up. 2492 */ 2493 if ((cr = ciss_dequeue_free(sc)) == NULL) 2494 return(ENOMEM); 2495 2496 cr->cr_data = NULL; 2497 cr->cr_flags = 0; 2498 cr->cr_complete = NULL; 2499 cr->cr_private = NULL; 2500 cr->cr_sg_tag = CISS_SG_MAX; /* Backstop to prevent accidents */ 2501 2502 ciss_preen_command(cr); 2503 *crp = cr; 2504 return(0); 2505 } 2506 2507 static void 2508 ciss_preen_command(struct ciss_request *cr) 2509 { 2510 struct ciss_command *cc; 2511 u_int32_t cmdphys; 2512 2513 /* 2514 * Clean up the command structure. 2515 * 2516 * Note that we set up the error_info structure here, since the 2517 * length can be overwritten by any command. 2518 */ 2519 cc = cr->cr_cc; 2520 cc->header.sg_in_list = 0; /* kinda inefficient this way */ 2521 cc->header.sg_total = 0; 2522 cc->header.host_tag = cr->cr_tag << 2; 2523 cc->header.host_tag_zeroes = 0; 2524 bzero(&(cc->sg[0]), CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command)); 2525 cmdphys = cr->cr_ccphys; 2526 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command); 2527 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command); 2528 } 2529 2530 /************************************************************************ 2531 * Release a request to the free list. 2532 */ 2533 static void 2534 ciss_release_request(struct ciss_request *cr) 2535 { 2536 struct ciss_softc *sc; 2537 2538 debug_called(2); 2539 2540 sc = cr->cr_sc; 2541 2542 /* release the request to the free queue */ 2543 ciss_requeue_free(cr); 2544 } 2545 2546 /************************************************************************ 2547 * Allocate a request that will be used to send a BMIC command. Do some 2548 * of the common setup here to avoid duplicating it everywhere else. 2549 */ 2550 static int 2551 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 2552 int opcode, void **bufp, size_t bufsize) 2553 { 2554 struct ciss_request *cr; 2555 struct ciss_command *cc; 2556 struct ciss_bmic_cdb *cbc; 2557 void *buf; 2558 int error; 2559 int dataout; 2560 2561 debug_called(2); 2562 2563 cr = NULL; 2564 buf = NULL; 2565 2566 /* 2567 * Get a request. 2568 */ 2569 if ((error = ciss_get_request(sc, &cr)) != 0) 2570 goto out; 2571 2572 /* 2573 * Allocate data storage if requested, determine the data direction. 2574 */ 2575 dataout = 0; 2576 if ((bufsize > 0) && (bufp != NULL)) { 2577 if (*bufp == NULL) { 2578 if ((buf = malloc(bufsize, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 2579 error = ENOMEM; 2580 goto out; 2581 } 2582 } else { 2583 buf = *bufp; 2584 dataout = 1; /* we are given a buffer, so we are writing */ 2585 } 2586 } 2587 2588 /* 2589 * Build a CISS BMIC command to get the logical drive ID. 2590 */ 2591 cr->cr_data = buf; 2592 cr->cr_length = bufsize; 2593 if (!dataout) 2594 cr->cr_flags = CISS_REQ_DATAIN; 2595 2596 cc = cr->cr_cc; 2597 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2598 cc->header.address.physical.bus = 0; 2599 cc->header.address.physical.target = 0; 2600 cc->cdb.cdb_length = sizeof(*cbc); 2601 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2602 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2603 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ; 2604 cc->cdb.timeout = 0; 2605 2606 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 2607 bzero(cbc, sizeof(*cbc)); 2608 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ; 2609 cbc->bmic_opcode = opcode; 2610 cbc->size = htons((u_int16_t)bufsize); 2611 2612 out: 2613 if (error) { 2614 if (cr != NULL) 2615 ciss_release_request(cr); 2616 } else { 2617 *crp = cr; 2618 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 2619 *bufp = buf; 2620 } 2621 return(error); 2622 } 2623 2624 /************************************************************************ 2625 * Handle a command passed in from userspace. 2626 */ 2627 static int 2628 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc) 2629 { 2630 struct ciss_request *cr; 2631 struct ciss_command *cc; 2632 struct ciss_error_info *ce; 2633 int error = 0; 2634 2635 debug_called(1); 2636 2637 cr = NULL; 2638 2639 /* 2640 * Get a request. 2641 */ 2642 while (ciss_get_request(sc, &cr) != 0) 2643 msleep(sc, &sc->ciss_mtx, PPAUSE, "cissREQ", hz); 2644 cc = cr->cr_cc; 2645 2646 /* 2647 * Allocate an in-kernel databuffer if required, copy in user data. 2648 */ 2649 mtx_unlock(&sc->ciss_mtx); 2650 cr->cr_length = ioc->buf_size; 2651 if (ioc->buf_size > 0) { 2652 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 2653 error = ENOMEM; 2654 goto out_unlocked; 2655 } 2656 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) { 2657 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2658 goto out_unlocked; 2659 } 2660 } 2661 2662 /* 2663 * Build the request based on the user command. 2664 */ 2665 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address)); 2666 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb)); 2667 2668 /* XXX anything else to populate here? */ 2669 mtx_lock(&sc->ciss_mtx); 2670 2671 /* 2672 * Run the command. 2673 */ 2674 if ((error = ciss_synch_request(cr, 60 * 1000))) { 2675 debug(0, "request failed - %d", error); 2676 goto out; 2677 } 2678 2679 /* 2680 * Check to see if the command succeeded. 2681 */ 2682 ce = (struct ciss_error_info *)&(cc->sg[0]); 2683 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) == 0) 2684 bzero(ce, sizeof(*ce)); 2685 2686 /* 2687 * Copy the results back to the user. 2688 */ 2689 bcopy(ce, &ioc->error_info, sizeof(*ce)); 2690 mtx_unlock(&sc->ciss_mtx); 2691 if ((ioc->buf_size > 0) && 2692 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) { 2693 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2694 goto out_unlocked; 2695 } 2696 2697 /* done OK */ 2698 error = 0; 2699 2700 out_unlocked: 2701 mtx_lock(&sc->ciss_mtx); 2702 2703 out: 2704 if ((cr != NULL) && (cr->cr_data != NULL)) 2705 free(cr->cr_data, CISS_MALLOC_CLASS); 2706 if (cr != NULL) 2707 ciss_release_request(cr); 2708 return(error); 2709 } 2710 2711 /************************************************************************ 2712 * Map a request into bus-visible space, initialise the scatter/gather 2713 * list. 2714 */ 2715 static int 2716 ciss_map_request(struct ciss_request *cr) 2717 { 2718 struct ciss_softc *sc; 2719 int error = 0; 2720 2721 debug_called(2); 2722 2723 sc = cr->cr_sc; 2724 2725 /* check that mapping is necessary */ 2726 if (cr->cr_flags & CISS_REQ_MAPPED) 2727 return(0); 2728 2729 cr->cr_flags |= CISS_REQ_MAPPED; 2730 2731 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2732 BUS_DMASYNC_PREWRITE); 2733 2734 if (cr->cr_data != NULL) { 2735 if (cr->cr_flags & CISS_REQ_CCB) 2736 error = bus_dmamap_load_ccb(sc->ciss_buffer_dmat, 2737 cr->cr_datamap, cr->cr_data, 2738 ciss_request_map_helper, cr, 0); 2739 else 2740 error = bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, 2741 cr->cr_data, cr->cr_length, 2742 ciss_request_map_helper, cr, 0); 2743 if (error != 0) 2744 return (error); 2745 } else { 2746 /* 2747 * Post the command to the adapter. 2748 */ 2749 cr->cr_sg_tag = CISS_SG_NONE; 2750 cr->cr_flags |= CISS_REQ_BUSY; 2751 if (sc->ciss_perf) 2752 CISS_TL_PERF_POST_CMD(sc, cr); 2753 else 2754 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys); 2755 } 2756 2757 return(0); 2758 } 2759 2760 static void 2761 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2762 { 2763 struct ciss_command *cc; 2764 struct ciss_request *cr; 2765 struct ciss_softc *sc; 2766 int i; 2767 2768 debug_called(2); 2769 2770 cr = (struct ciss_request *)arg; 2771 sc = cr->cr_sc; 2772 cc = cr->cr_cc; 2773 2774 for (i = 0; i < nseg; i++) { 2775 cc->sg[i].address = segs[i].ds_addr; 2776 cc->sg[i].length = segs[i].ds_len; 2777 cc->sg[i].extension = 0; 2778 } 2779 /* we leave the s/g table entirely within the command */ 2780 cc->header.sg_in_list = nseg; 2781 cc->header.sg_total = nseg; 2782 2783 if (cr->cr_flags & CISS_REQ_DATAIN) 2784 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD); 2785 if (cr->cr_flags & CISS_REQ_DATAOUT) 2786 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE); 2787 2788 if (nseg == 0) 2789 cr->cr_sg_tag = CISS_SG_NONE; 2790 else if (nseg == 1) 2791 cr->cr_sg_tag = CISS_SG_1; 2792 else if (nseg == 2) 2793 cr->cr_sg_tag = CISS_SG_2; 2794 else if (nseg <= 4) 2795 cr->cr_sg_tag = CISS_SG_4; 2796 else if (nseg <= 8) 2797 cr->cr_sg_tag = CISS_SG_8; 2798 else if (nseg <= 16) 2799 cr->cr_sg_tag = CISS_SG_16; 2800 else if (nseg <= 32) 2801 cr->cr_sg_tag = CISS_SG_32; 2802 else 2803 cr->cr_sg_tag = CISS_SG_MAX; 2804 2805 /* 2806 * Post the command to the adapter. 2807 */ 2808 cr->cr_flags |= CISS_REQ_BUSY; 2809 if (sc->ciss_perf) 2810 CISS_TL_PERF_POST_CMD(sc, cr); 2811 else 2812 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys); 2813 } 2814 2815 /************************************************************************ 2816 * Unmap a request from bus-visible space. 2817 */ 2818 static void 2819 ciss_unmap_request(struct ciss_request *cr) 2820 { 2821 struct ciss_softc *sc; 2822 2823 debug_called(2); 2824 2825 sc = cr->cr_sc; 2826 2827 /* check that unmapping is necessary */ 2828 if ((cr->cr_flags & CISS_REQ_MAPPED) == 0) 2829 return; 2830 2831 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2832 BUS_DMASYNC_POSTWRITE); 2833 2834 if (cr->cr_data == NULL) 2835 goto out; 2836 2837 if (cr->cr_flags & CISS_REQ_DATAIN) 2838 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD); 2839 if (cr->cr_flags & CISS_REQ_DATAOUT) 2840 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE); 2841 2842 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap); 2843 out: 2844 cr->cr_flags &= ~CISS_REQ_MAPPED; 2845 } 2846 2847 /************************************************************************ 2848 * Attach the driver to CAM. 2849 * 2850 * We put all the logical drives on a single SCSI bus. 2851 */ 2852 static int 2853 ciss_cam_init(struct ciss_softc *sc) 2854 { 2855 int i, maxbus; 2856 2857 debug_called(1); 2858 2859 /* 2860 * Allocate a devq. We can reuse this for the masked physical 2861 * devices if we decide to export these as well. 2862 */ 2863 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests - 2)) == NULL) { 2864 ciss_printf(sc, "can't allocate CAM SIM queue\n"); 2865 return(ENOMEM); 2866 } 2867 2868 /* 2869 * Create a SIM. 2870 * 2871 * This naturally wastes a bit of memory. The alternative is to allocate 2872 * and register each bus as it is found, and then track them on a linked 2873 * list. Unfortunately, the driver has a few places where it needs to 2874 * look up the SIM based solely on bus number, and it's unclear whether 2875 * a list traversal would work for these situations. 2876 */ 2877 maxbus = max(sc->ciss_max_logical_bus, sc->ciss_max_physical_bus + 2878 CISS_PHYSICAL_BASE); 2879 sc->ciss_cam_sim = malloc(maxbus * sizeof(struct cam_sim*), 2880 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 2881 if (sc->ciss_cam_sim == NULL) { 2882 ciss_printf(sc, "can't allocate memory for controller SIM\n"); 2883 return(ENOMEM); 2884 } 2885 2886 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 2887 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2888 "ciss", sc, 2889 device_get_unit(sc->ciss_dev), 2890 &sc->ciss_mtx, 2891 2, 2892 sc->ciss_max_requests - 2, 2893 sc->ciss_cam_devq)) == NULL) { 2894 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2895 return(ENOMEM); 2896 } 2897 2898 /* 2899 * Register bus with this SIM. 2900 */ 2901 mtx_lock(&sc->ciss_mtx); 2902 if (i == 0 || sc->ciss_controllers[i].physical.bus != 0) { 2903 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) { 2904 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2905 mtx_unlock(&sc->ciss_mtx); 2906 return (ENXIO); 2907 } 2908 } 2909 mtx_unlock(&sc->ciss_mtx); 2910 } 2911 2912 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2913 CISS_PHYSICAL_BASE; i++) { 2914 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2915 "ciss", sc, 2916 device_get_unit(sc->ciss_dev), 2917 &sc->ciss_mtx, 1, 2918 sc->ciss_max_requests - 2, 2919 sc->ciss_cam_devq)) == NULL) { 2920 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2921 return (ENOMEM); 2922 } 2923 2924 mtx_lock(&sc->ciss_mtx); 2925 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) { 2926 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2927 mtx_unlock(&sc->ciss_mtx); 2928 return (ENXIO); 2929 } 2930 mtx_unlock(&sc->ciss_mtx); 2931 } 2932 2933 return(0); 2934 } 2935 2936 /************************************************************************ 2937 * Initiate a rescan of the 'logical devices' SIM 2938 */ 2939 static void 2940 ciss_cam_rescan_target(struct ciss_softc *sc, int bus, int target) 2941 { 2942 union ccb *ccb; 2943 2944 debug_called(1); 2945 2946 if ((ccb = xpt_alloc_ccb_nowait()) == NULL) { 2947 ciss_printf(sc, "rescan failed (can't allocate CCB)\n"); 2948 return; 2949 } 2950 2951 if (xpt_create_path(&ccb->ccb_h.path, NULL, 2952 cam_sim_path(sc->ciss_cam_sim[bus]), 2953 target, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 2954 ciss_printf(sc, "rescan failed (can't create path)\n"); 2955 xpt_free_ccb(ccb); 2956 return; 2957 } 2958 xpt_rescan(ccb); 2959 /* scan is now in progress */ 2960 } 2961 2962 /************************************************************************ 2963 * Handle requests coming from CAM 2964 */ 2965 static void 2966 ciss_cam_action(struct cam_sim *sim, union ccb *ccb) 2967 { 2968 struct ciss_softc *sc; 2969 struct ccb_scsiio *csio; 2970 int bus, target; 2971 int physical; 2972 2973 sc = cam_sim_softc(sim); 2974 bus = cam_sim_bus(sim); 2975 csio = (struct ccb_scsiio *)&ccb->csio; 2976 target = csio->ccb_h.target_id; 2977 physical = CISS_IS_PHYSICAL(bus); 2978 2979 switch (ccb->ccb_h.func_code) { 2980 2981 /* perform SCSI I/O */ 2982 case XPT_SCSI_IO: 2983 if (!ciss_cam_action_io(sim, csio)) 2984 return; 2985 break; 2986 2987 /* perform geometry calculations */ 2988 case XPT_CALC_GEOMETRY: 2989 { 2990 struct ccb_calc_geometry *ccg = &ccb->ccg; 2991 struct ciss_ldrive *ld; 2992 2993 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2994 2995 ld = NULL; 2996 if (!physical) 2997 ld = &sc->ciss_logical[bus][target]; 2998 2999 /* 3000 * Use the cached geometry settings unless the fault tolerance 3001 * is invalid. 3002 */ 3003 if (physical || ld->cl_geometry.fault_tolerance == 0xFF) { 3004 u_int32_t secs_per_cylinder; 3005 3006 ccg->heads = 255; 3007 ccg->secs_per_track = 32; 3008 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 3009 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 3010 } else { 3011 ccg->heads = ld->cl_geometry.heads; 3012 ccg->secs_per_track = ld->cl_geometry.sectors; 3013 ccg->cylinders = ntohs(ld->cl_geometry.cylinders); 3014 } 3015 ccb->ccb_h.status = CAM_REQ_CMP; 3016 break; 3017 } 3018 3019 /* handle path attribute inquiry */ 3020 case XPT_PATH_INQ: 3021 { 3022 struct ccb_pathinq *cpi = &ccb->cpi; 3023 int sg_length; 3024 3025 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 3026 3027 cpi->version_num = 1; 3028 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */ 3029 cpi->target_sprt = 0; 3030 cpi->hba_misc = 0; 3031 cpi->max_target = sc->ciss_cfg->max_logical_supported; 3032 cpi->max_lun = 0; /* 'logical drive' channel only */ 3033 cpi->initiator_id = sc->ciss_cfg->max_logical_supported; 3034 strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 3035 strlcpy(cpi->hba_vid, "CISS", HBA_IDLEN); 3036 strlcpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 3037 cpi->unit_number = cam_sim_unit(sim); 3038 cpi->bus_id = cam_sim_bus(sim); 3039 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */ 3040 cpi->transport = XPORT_SPI; 3041 cpi->transport_version = 2; 3042 cpi->protocol = PROTO_SCSI; 3043 cpi->protocol_version = SCSI_REV_2; 3044 if (sc->ciss_cfg->max_sg_length == 0) { 3045 sg_length = 17; 3046 } else { 3047 /* XXX Fix for ZMR cards that advertise max_sg_length == 32 3048 * Confusing bit here. max_sg_length is usually a power of 2. We always 3049 * need to subtract 1 to account for partial pages. Then we need to 3050 * align on a valid PAGE_SIZE so we round down to the nearest power of 2. 3051 * Add 1 so we can then subtract it out in the assignment to maxio. 3052 * The reason for all these shenanigans is to create a maxio value that 3053 * creates IO operations to volumes that yield consistent operations 3054 * with good performance. 3055 */ 3056 sg_length = sc->ciss_cfg->max_sg_length - 1; 3057 sg_length = (1 << (fls(sg_length) - 1)) + 1; 3058 } 3059 cpi->maxio = (min(CISS_MAX_SG_ELEMENTS, sg_length) - 1) * PAGE_SIZE; 3060 ccb->ccb_h.status = CAM_REQ_CMP; 3061 break; 3062 } 3063 3064 case XPT_GET_TRAN_SETTINGS: 3065 { 3066 struct ccb_trans_settings *cts = &ccb->cts; 3067 int bus, target; 3068 struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi; 3069 struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi; 3070 3071 bus = cam_sim_bus(sim); 3072 target = cts->ccb_h.target_id; 3073 3074 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target); 3075 /* disconnect always OK */ 3076 cts->protocol = PROTO_SCSI; 3077 cts->protocol_version = SCSI_REV_2; 3078 cts->transport = XPORT_SPI; 3079 cts->transport_version = 2; 3080 3081 spi->valid = CTS_SPI_VALID_DISC; 3082 spi->flags = CTS_SPI_FLAGS_DISC_ENB; 3083 3084 scsi->valid = CTS_SCSI_VALID_TQ; 3085 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB; 3086 3087 cts->ccb_h.status = CAM_REQ_CMP; 3088 break; 3089 } 3090 3091 default: /* we can't do this */ 3092 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code); 3093 ccb->ccb_h.status = CAM_REQ_INVALID; 3094 break; 3095 } 3096 3097 xpt_done(ccb); 3098 } 3099 3100 /************************************************************************ 3101 * Handle a CAM SCSI I/O request. 3102 */ 3103 static int 3104 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio) 3105 { 3106 struct ciss_softc *sc; 3107 int bus, target; 3108 struct ciss_request *cr; 3109 struct ciss_command *cc; 3110 int error; 3111 3112 sc = cam_sim_softc(sim); 3113 bus = cam_sim_bus(sim); 3114 target = csio->ccb_h.target_id; 3115 3116 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun); 3117 3118 /* check that the CDB pointer is not to a physical address */ 3119 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) { 3120 debug(3, " CDB pointer is to physical address"); 3121 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3122 } 3123 3124 /* abandon aborted ccbs or those that have failed validation */ 3125 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 3126 debug(3, "abandoning CCB due to abort/validation failure"); 3127 return(EINVAL); 3128 } 3129 3130 /* handle emulation of some SCSI commands ourself */ 3131 if (ciss_cam_emulate(sc, csio)) 3132 return(0); 3133 3134 /* 3135 * Get a request to manage this command. If we can't, return the 3136 * ccb, freeze the queue and flag so that we unfreeze it when a 3137 * request completes. 3138 */ 3139 if ((error = ciss_get_request(sc, &cr)) != 0) { 3140 xpt_freeze_simq(sim, 1); 3141 sc->ciss_flags |= CISS_FLAG_BUSY; 3142 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3143 return(error); 3144 } 3145 3146 /* 3147 * Build the command. 3148 */ 3149 cc = cr->cr_cc; 3150 cr->cr_data = csio; 3151 cr->cr_length = csio->dxfer_len; 3152 cr->cr_complete = ciss_cam_complete; 3153 cr->cr_private = csio; 3154 3155 /* 3156 * Target the right logical volume. 3157 */ 3158 if (CISS_IS_PHYSICAL(bus)) 3159 cc->header.address = 3160 sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_address; 3161 else 3162 cc->header.address = 3163 sc->ciss_logical[bus][target].cl_address; 3164 cc->cdb.cdb_length = csio->cdb_len; 3165 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3166 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */ 3167 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 3168 cr->cr_flags = CISS_REQ_DATAOUT | CISS_REQ_CCB; 3169 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3170 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 3171 cr->cr_flags = CISS_REQ_DATAIN | CISS_REQ_CCB; 3172 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3173 } else { 3174 cr->cr_data = NULL; 3175 cr->cr_flags = 0; 3176 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 3177 } 3178 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1; 3179 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 3180 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len); 3181 } else { 3182 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len); 3183 } 3184 3185 /* 3186 * Submit the request to the adapter. 3187 * 3188 * Note that this may fail if we're unable to map the request (and 3189 * if we ever learn a transport layer other than simple, may fail 3190 * if the adapter rejects the command). 3191 */ 3192 if ((error = ciss_start(cr)) != 0) { 3193 xpt_freeze_simq(sim, 1); 3194 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3195 if (error == EINPROGRESS) { 3196 error = 0; 3197 } else { 3198 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3199 ciss_release_request(cr); 3200 } 3201 return(error); 3202 } 3203 3204 return(0); 3205 } 3206 3207 /************************************************************************ 3208 * Emulate SCSI commands the adapter doesn't handle as we might like. 3209 */ 3210 static int 3211 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio) 3212 { 3213 int bus, target; 3214 u_int8_t opcode; 3215 3216 target = csio->ccb_h.target_id; 3217 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3218 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 3219 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]; 3220 3221 if (CISS_IS_PHYSICAL(bus)) { 3222 if (sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_online != 1) { 3223 csio->ccb_h.status |= CAM_SEL_TIMEOUT; 3224 xpt_done((union ccb *)csio); 3225 return(1); 3226 } else 3227 return(0); 3228 } 3229 3230 /* 3231 * Handle requests for volumes that don't exist or are not online. 3232 * A selection timeout is slightly better than an illegal request. 3233 * Other errors might be better. 3234 */ 3235 if (sc->ciss_logical[bus][target].cl_status != CISS_LD_ONLINE) { 3236 csio->ccb_h.status |= CAM_SEL_TIMEOUT; 3237 xpt_done((union ccb *)csio); 3238 return(1); 3239 } 3240 3241 /* if we have to fake Synchronise Cache */ 3242 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) { 3243 /* 3244 * If this is a Synchronise Cache command, typically issued when 3245 * a device is closed, flush the adapter and complete now. 3246 */ 3247 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 3248 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) { 3249 ciss_flush_adapter(sc); 3250 csio->ccb_h.status |= CAM_REQ_CMP; 3251 xpt_done((union ccb *)csio); 3252 return(1); 3253 } 3254 } 3255 3256 /* 3257 * A CISS target can only ever have one lun per target. REPORT_LUNS requires 3258 * at least one LUN field to be pre created for us, so snag it and fill in 3259 * the least significant byte indicating 1 LUN here. Emulate the command 3260 * return to shut up warning on console of a CDB error. swb 3261 */ 3262 if (opcode == REPORT_LUNS && csio->dxfer_len > 0) { 3263 csio->data_ptr[3] = 8; 3264 csio->ccb_h.status |= CAM_REQ_CMP; 3265 xpt_done((union ccb *)csio); 3266 return(1); 3267 } 3268 3269 return(0); 3270 } 3271 3272 /************************************************************************ 3273 * Check for possibly-completed commands. 3274 */ 3275 static void 3276 ciss_cam_poll(struct cam_sim *sim) 3277 { 3278 cr_qhead_t qh; 3279 struct ciss_softc *sc = cam_sim_softc(sim); 3280 3281 debug_called(2); 3282 3283 STAILQ_INIT(&qh); 3284 if (sc->ciss_perf) 3285 ciss_perf_done(sc, &qh); 3286 else 3287 ciss_done(sc, &qh); 3288 ciss_complete(sc, &qh); 3289 } 3290 3291 /************************************************************************ 3292 * Handle completion of a command - pass results back through the CCB 3293 */ 3294 static void 3295 ciss_cam_complete(struct ciss_request *cr) 3296 { 3297 struct ciss_softc *sc; 3298 struct ciss_command *cc; 3299 struct ciss_error_info *ce; 3300 struct ccb_scsiio *csio; 3301 int scsi_status; 3302 int command_status; 3303 3304 debug_called(2); 3305 3306 sc = cr->cr_sc; 3307 cc = cr->cr_cc; 3308 ce = (struct ciss_error_info *)&(cc->sg[0]); 3309 csio = (struct ccb_scsiio *)cr->cr_private; 3310 3311 /* 3312 * Extract status values from request. 3313 */ 3314 ciss_report_request(cr, &command_status, &scsi_status); 3315 csio->scsi_status = scsi_status; 3316 3317 /* 3318 * Handle specific SCSI status values. 3319 */ 3320 switch(scsi_status) { 3321 /* no status due to adapter error */ 3322 case -1: 3323 debug(0, "adapter error"); 3324 csio->ccb_h.status |= CAM_REQ_CMP_ERR; 3325 break; 3326 3327 /* no status due to command completed OK */ 3328 case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */ 3329 debug(2, "SCSI_STATUS_OK"); 3330 csio->ccb_h.status |= CAM_REQ_CMP; 3331 break; 3332 3333 /* check condition, sense data included */ 3334 case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */ 3335 debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d\n", 3336 ce->sense_length, ce->residual_count); 3337 bzero(&csio->sense_data, SSD_FULL_SIZE); 3338 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length); 3339 if (csio->sense_len > ce->sense_length) 3340 csio->sense_resid = csio->sense_len - ce->sense_length; 3341 else 3342 csio->sense_resid = 0; 3343 csio->resid = ce->residual_count; 3344 csio->ccb_h.status |= CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 3345 #ifdef CISS_DEBUG 3346 { 3347 struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0]; 3348 debug(0, "sense key %x", scsi_get_sense_key(sns, csio->sense_len - 3349 csio->sense_resid, /*show_errors*/ 1)); 3350 } 3351 #endif 3352 break; 3353 3354 case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */ 3355 debug(0, "SCSI_STATUS_BUSY"); 3356 csio->ccb_h.status |= CAM_SCSI_BUSY; 3357 break; 3358 3359 default: 3360 debug(0, "unknown status 0x%x", csio->scsi_status); 3361 csio->ccb_h.status |= CAM_REQ_CMP_ERR; 3362 break; 3363 } 3364 3365 /* handle post-command fixup */ 3366 ciss_cam_complete_fixup(sc, csio); 3367 3368 ciss_release_request(cr); 3369 if (sc->ciss_flags & CISS_FLAG_BUSY) { 3370 sc->ciss_flags &= ~CISS_FLAG_BUSY; 3371 if (csio->ccb_h.status & CAM_RELEASE_SIMQ) 3372 xpt_release_simq(xpt_path_sim(csio->ccb_h.path), 0); 3373 else 3374 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3375 } 3376 xpt_done((union ccb *)csio); 3377 } 3378 3379 /******************************************************************************** 3380 * Fix up the result of some commands here. 3381 */ 3382 static void 3383 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio) 3384 { 3385 struct scsi_inquiry_data *inq; 3386 struct ciss_ldrive *cl; 3387 uint8_t *cdb; 3388 int bus, target; 3389 3390 cdb = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 3391 (uint8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes; 3392 if (cdb[0] == INQUIRY && 3393 (cdb[1] & SI_EVPD) == 0 && 3394 (csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN && 3395 csio->dxfer_len >= SHORT_INQUIRY_LENGTH) { 3396 3397 inq = (struct scsi_inquiry_data *)csio->data_ptr; 3398 target = csio->ccb_h.target_id; 3399 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3400 3401 /* 3402 * If the controller is in JBOD mode, there are no logical volumes. 3403 * Let the disks be probed and dealt with via CAM. Else, mask off 3404 * the physical disks and setup the parts of the inq structure for 3405 * the logical volume. swb 3406 */ 3407 if( !(sc->ciss_id->PowerUPNvramFlags & PWR_UP_FLAG_JBOD_ENABLED)){ 3408 if (CISS_IS_PHYSICAL(bus)) { 3409 if (SID_TYPE(inq) == T_DIRECT) 3410 inq->device = (inq->device & 0xe0) | T_NODEVICE; 3411 return; 3412 } 3413 cl = &sc->ciss_logical[bus][target]; 3414 3415 padstr(inq->vendor, "HP", 3416 SID_VENDOR_SIZE); 3417 padstr(inq->product, 3418 ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 3419 SID_PRODUCT_SIZE); 3420 padstr(inq->revision, 3421 ciss_name_ldrive_status(cl->cl_lstatus->status), 3422 SID_REVISION_SIZE); 3423 } 3424 } 3425 } 3426 3427 3428 /******************************************************************************** 3429 * Name the device at (target) 3430 * 3431 * XXX is this strictly correct? 3432 */ 3433 static int 3434 ciss_name_device(struct ciss_softc *sc, int bus, int target) 3435 { 3436 struct cam_periph *periph; 3437 struct cam_path *path; 3438 int status; 3439 3440 if (CISS_IS_PHYSICAL(bus)) 3441 return (0); 3442 3443 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim[bus]), 3444 target, 0); 3445 3446 if (status == CAM_REQ_CMP) { 3447 xpt_path_lock(path); 3448 periph = cam_periph_find(path, NULL); 3449 xpt_path_unlock(path); 3450 xpt_free_path(path); 3451 if (periph != NULL) { 3452 sprintf(sc->ciss_logical[bus][target].cl_name, "%s%d", 3453 periph->periph_name, periph->unit_number); 3454 return(0); 3455 } 3456 } 3457 sc->ciss_logical[bus][target].cl_name[0] = 0; 3458 return(ENOENT); 3459 } 3460 3461 /************************************************************************ 3462 * Periodic status monitoring. 3463 */ 3464 static void 3465 ciss_periodic(void *arg) 3466 { 3467 struct ciss_softc *sc; 3468 struct ciss_request *cr = NULL; 3469 struct ciss_command *cc = NULL; 3470 int error = 0; 3471 3472 debug_called(1); 3473 3474 sc = (struct ciss_softc *)arg; 3475 3476 /* 3477 * Check the adapter heartbeat. 3478 */ 3479 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) { 3480 sc->ciss_heart_attack++; 3481 debug(0, "adapter heart attack in progress 0x%x/%d", 3482 sc->ciss_heartbeat, sc->ciss_heart_attack); 3483 if (sc->ciss_heart_attack == 3) { 3484 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n"); 3485 ciss_disable_adapter(sc); 3486 return; 3487 } 3488 } else { 3489 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat; 3490 sc->ciss_heart_attack = 0; 3491 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat); 3492 } 3493 3494 /* 3495 * Send the NOP message and wait for a response. 3496 */ 3497 if (ciss_nop_message_heartbeat != 0 && (error = ciss_get_request(sc, &cr)) == 0) { 3498 cc = cr->cr_cc; 3499 cr->cr_complete = ciss_nop_complete; 3500 cc->cdb.cdb_length = 1; 3501 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 3502 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3503 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3504 cc->cdb.timeout = 0; 3505 cc->cdb.cdb[0] = CISS_OPCODE_MESSAGE_NOP; 3506 3507 if ((error = ciss_start(cr)) != 0) { 3508 ciss_printf(sc, "SENDING NOP MESSAGE FAILED\n"); 3509 } 3510 } 3511 3512 /* 3513 * If the notify event request has died for some reason, or has 3514 * not started yet, restart it. 3515 */ 3516 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) { 3517 debug(0, "(re)starting Event Notify chain"); 3518 ciss_notify_event(sc); 3519 } 3520 3521 /* 3522 * Reschedule. 3523 */ 3524 callout_reset(&sc->ciss_periodic, CISS_HEARTBEAT_RATE * hz, ciss_periodic, sc); 3525 } 3526 3527 static void 3528 ciss_nop_complete(struct ciss_request *cr) 3529 { 3530 struct ciss_softc *sc; 3531 static int first_time = 1; 3532 3533 sc = cr->cr_sc; 3534 if (ciss_report_request(cr, NULL, NULL) != 0) { 3535 if (first_time == 1) { 3536 first_time = 0; 3537 ciss_printf(sc, "SENDING NOP MESSAGE FAILED (not logging anymore)\n"); 3538 } 3539 } 3540 3541 ciss_release_request(cr); 3542 } 3543 3544 /************************************************************************ 3545 * Disable the adapter. 3546 * 3547 * The all requests in completed queue is failed with hardware error. 3548 * This will cause failover in a multipath configuration. 3549 */ 3550 static void 3551 ciss_disable_adapter(struct ciss_softc *sc) 3552 { 3553 cr_qhead_t qh; 3554 struct ciss_request *cr; 3555 struct ciss_command *cc; 3556 struct ciss_error_info *ce; 3557 int i; 3558 3559 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 3560 pci_disable_busmaster(sc->ciss_dev); 3561 sc->ciss_flags &= ~CISS_FLAG_RUNNING; 3562 3563 for (i = 1; i < sc->ciss_max_requests; i++) { 3564 cr = &sc->ciss_request[i]; 3565 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 3566 continue; 3567 3568 cc = cr->cr_cc; 3569 ce = (struct ciss_error_info *)&(cc->sg[0]); 3570 ce->command_status = CISS_CMD_STATUS_HARDWARE_ERROR; 3571 ciss_enqueue_complete(cr, &qh); 3572 } 3573 3574 for (;;) { 3575 if ((cr = ciss_dequeue_complete(sc, &qh)) == NULL) 3576 break; 3577 3578 /* 3579 * If the request has a callback, invoke it. 3580 */ 3581 if (cr->cr_complete != NULL) { 3582 cr->cr_complete(cr); 3583 continue; 3584 } 3585 3586 /* 3587 * If someone is sleeping on this request, wake them up. 3588 */ 3589 if (cr->cr_flags & CISS_REQ_SLEEP) { 3590 cr->cr_flags &= ~CISS_REQ_SLEEP; 3591 wakeup(cr); 3592 continue; 3593 } 3594 } 3595 } 3596 3597 /************************************************************************ 3598 * Request a notification response from the adapter. 3599 * 3600 * If (cr) is NULL, this is the first request of the adapter, so 3601 * reset the adapter's message pointer and start with the oldest 3602 * message available. 3603 */ 3604 static void 3605 ciss_notify_event(struct ciss_softc *sc) 3606 { 3607 struct ciss_request *cr; 3608 struct ciss_command *cc; 3609 struct ciss_notify_cdb *cnc; 3610 int error; 3611 3612 debug_called(1); 3613 3614 cr = sc->ciss_periodic_notify; 3615 3616 /* get a request if we don't already have one */ 3617 if (cr == NULL) { 3618 if ((error = ciss_get_request(sc, &cr)) != 0) { 3619 debug(0, "can't get notify event request"); 3620 goto out; 3621 } 3622 sc->ciss_periodic_notify = cr; 3623 cr->cr_complete = ciss_notify_complete; 3624 debug(1, "acquired request %d", cr->cr_tag); 3625 } 3626 3627 /* 3628 * Get a databuffer if we don't already have one, note that the 3629 * adapter command wants a larger buffer than the actual 3630 * structure. 3631 */ 3632 if (cr->cr_data == NULL) { 3633 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3634 debug(0, "can't get notify event request buffer"); 3635 error = ENOMEM; 3636 goto out; 3637 } 3638 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3639 } 3640 3641 /* re-setup the request's command (since we never release it) XXX overkill*/ 3642 ciss_preen_command(cr); 3643 3644 /* (re)build the notify event command */ 3645 cc = cr->cr_cc; 3646 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3647 cc->header.address.physical.bus = 0; 3648 cc->header.address.physical.target = 0; 3649 3650 cc->cdb.cdb_length = sizeof(*cnc); 3651 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3652 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3653 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3654 cc->cdb.timeout = 0; /* no timeout, we hope */ 3655 3656 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3657 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE); 3658 cnc->opcode = CISS_OPCODE_READ; 3659 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT; 3660 cnc->timeout = 0; /* no timeout, we hope */ 3661 cnc->synchronous = 0; 3662 cnc->ordered = 0; 3663 cnc->seek_to_oldest = 0; 3664 if ((sc->ciss_flags & CISS_FLAG_RUNNING) == 0) 3665 cnc->new_only = 1; 3666 else 3667 cnc->new_only = 0; 3668 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3669 3670 /* submit the request */ 3671 error = ciss_start(cr); 3672 3673 out: 3674 if (error) { 3675 if (cr != NULL) { 3676 if (cr->cr_data != NULL) 3677 free(cr->cr_data, CISS_MALLOC_CLASS); 3678 ciss_release_request(cr); 3679 } 3680 sc->ciss_periodic_notify = NULL; 3681 debug(0, "can't submit notify event request"); 3682 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3683 } else { 3684 debug(1, "notify event submitted"); 3685 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK; 3686 } 3687 } 3688 3689 static void 3690 ciss_notify_complete(struct ciss_request *cr) 3691 { 3692 struct ciss_command *cc; 3693 struct ciss_notify *cn; 3694 struct ciss_softc *sc; 3695 int scsi_status; 3696 int command_status; 3697 debug_called(1); 3698 3699 cc = cr->cr_cc; 3700 cn = (struct ciss_notify *)cr->cr_data; 3701 sc = cr->cr_sc; 3702 3703 /* 3704 * Report request results, decode status. 3705 */ 3706 ciss_report_request(cr, &command_status, &scsi_status); 3707 3708 /* 3709 * Abort the chain on a fatal error. 3710 * 3711 * XXX which of these are actually errors? 3712 */ 3713 if ((command_status != CISS_CMD_STATUS_SUCCESS) && 3714 (command_status != CISS_CMD_STATUS_TARGET_STATUS) && 3715 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */ 3716 ciss_printf(sc, "fatal error in Notify Event request (%s)\n", 3717 ciss_name_command_status(command_status)); 3718 ciss_release_request(cr); 3719 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3720 return; 3721 } 3722 3723 /* 3724 * If the adapter gave us a text message, print it. 3725 */ 3726 if (cn->message[0] != 0) 3727 ciss_printf(sc, "*** %.80s\n", cn->message); 3728 3729 debug(0, "notify event class %d subclass %d detail %d", 3730 cn->class, cn->subclass, cn->detail); 3731 3732 /* 3733 * If the response indicates that the notifier has been aborted, 3734 * release the notifier command. 3735 */ 3736 if ((cn->class == CISS_NOTIFY_NOTIFIER) && 3737 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) && 3738 (cn->detail == 1)) { 3739 debug(0, "notifier exiting"); 3740 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3741 ciss_release_request(cr); 3742 sc->ciss_periodic_notify = NULL; 3743 wakeup(&sc->ciss_periodic_notify); 3744 } else { 3745 /* Handle notify events in a kernel thread */ 3746 ciss_enqueue_notify(cr); 3747 sc->ciss_periodic_notify = NULL; 3748 wakeup(&sc->ciss_periodic_notify); 3749 wakeup(&sc->ciss_notify); 3750 } 3751 /* 3752 * Send a new notify event command, if we're not aborting. 3753 */ 3754 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) { 3755 ciss_notify_event(sc); 3756 } 3757 } 3758 3759 /************************************************************************ 3760 * Abort the Notify Event chain. 3761 * 3762 * Note that we can't just abort the command in progress; we have to 3763 * explicitly issue an Abort Notify Event command in order for the 3764 * adapter to clean up correctly. 3765 * 3766 * If we are called with CISS_FLAG_ABORTING set in the adapter softc, 3767 * the chain will not restart itself. 3768 */ 3769 static int 3770 ciss_notify_abort(struct ciss_softc *sc) 3771 { 3772 struct ciss_request *cr; 3773 struct ciss_command *cc; 3774 struct ciss_notify_cdb *cnc; 3775 int error, command_status, scsi_status; 3776 3777 debug_called(1); 3778 3779 cr = NULL; 3780 error = 0; 3781 3782 /* verify that there's an outstanding command */ 3783 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3784 goto out; 3785 3786 /* get a command to issue the abort with */ 3787 if ((error = ciss_get_request(sc, &cr))) 3788 goto out; 3789 3790 /* get a buffer for the result */ 3791 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3792 debug(0, "can't get notify event request buffer"); 3793 error = ENOMEM; 3794 goto out; 3795 } 3796 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3797 3798 /* build the CDB */ 3799 cc = cr->cr_cc; 3800 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3801 cc->header.address.physical.bus = 0; 3802 cc->header.address.physical.target = 0; 3803 cc->cdb.cdb_length = sizeof(*cnc); 3804 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3805 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3806 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3807 cc->cdb.timeout = 0; /* no timeout, we hope */ 3808 3809 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3810 bzero(cnc, sizeof(*cnc)); 3811 cnc->opcode = CISS_OPCODE_WRITE; 3812 cnc->command = CISS_COMMAND_ABORT_NOTIFY; 3813 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3814 3815 ciss_print_request(cr); 3816 3817 /* 3818 * Submit the request and wait for it to complete. 3819 */ 3820 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3821 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error); 3822 goto out; 3823 } 3824 3825 /* 3826 * Check response. 3827 */ 3828 ciss_report_request(cr, &command_status, &scsi_status); 3829 switch(command_status) { 3830 case CISS_CMD_STATUS_SUCCESS: 3831 break; 3832 case CISS_CMD_STATUS_INVALID_COMMAND: 3833 /* 3834 * Some older adapters don't support the CISS version of this 3835 * command. Fall back to using the BMIC version. 3836 */ 3837 error = ciss_notify_abort_bmic(sc); 3838 if (error != 0) 3839 goto out; 3840 break; 3841 3842 case CISS_CMD_STATUS_TARGET_STATUS: 3843 /* 3844 * This can happen if the adapter thinks there wasn't an outstanding 3845 * Notify Event command but we did. We clean up here. 3846 */ 3847 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) { 3848 if (sc->ciss_periodic_notify != NULL) 3849 ciss_release_request(sc->ciss_periodic_notify); 3850 error = 0; 3851 goto out; 3852 } 3853 /* FALLTHROUGH */ 3854 3855 default: 3856 ciss_printf(sc, "Abort Notify Event command failed (%s)\n", 3857 ciss_name_command_status(command_status)); 3858 error = EIO; 3859 goto out; 3860 } 3861 3862 /* 3863 * Sleep waiting for the notifier command to complete. Note 3864 * that if it doesn't, we may end up in a bad situation, since 3865 * the adapter may deliver it later. Also note that the adapter 3866 * requires the Notify Event command to be cancelled in order to 3867 * maintain internal bookkeeping. 3868 */ 3869 while (sc->ciss_periodic_notify != NULL) { 3870 error = msleep(&sc->ciss_periodic_notify, &sc->ciss_mtx, PRIBIO, "cissNEA", hz * 5); 3871 if (error == EWOULDBLOCK) { 3872 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n"); 3873 break; 3874 } 3875 } 3876 3877 out: 3878 /* release the cancel request */ 3879 if (cr != NULL) { 3880 if (cr->cr_data != NULL) 3881 free(cr->cr_data, CISS_MALLOC_CLASS); 3882 ciss_release_request(cr); 3883 } 3884 if (error == 0) 3885 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3886 return(error); 3887 } 3888 3889 /************************************************************************ 3890 * Abort the Notify Event chain using a BMIC command. 3891 */ 3892 static int 3893 ciss_notify_abort_bmic(struct ciss_softc *sc) 3894 { 3895 struct ciss_request *cr; 3896 int error, command_status; 3897 3898 debug_called(1); 3899 3900 cr = NULL; 3901 error = 0; 3902 3903 /* verify that there's an outstanding command */ 3904 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3905 goto out; 3906 3907 /* 3908 * Build a BMIC command to cancel the Notify on Event command. 3909 * 3910 * Note that we are sending a CISS opcode here. Odd. 3911 */ 3912 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY, 3913 NULL, 0)) != 0) 3914 goto out; 3915 3916 /* 3917 * Submit the request and wait for it to complete. 3918 */ 3919 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3920 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error); 3921 goto out; 3922 } 3923 3924 /* 3925 * Check response. 3926 */ 3927 ciss_report_request(cr, &command_status, NULL); 3928 switch(command_status) { 3929 case CISS_CMD_STATUS_SUCCESS: 3930 break; 3931 default: 3932 ciss_printf(sc, "error cancelling Notify on Event (%s)\n", 3933 ciss_name_command_status(command_status)); 3934 error = EIO; 3935 goto out; 3936 } 3937 3938 out: 3939 if (cr != NULL) 3940 ciss_release_request(cr); 3941 return(error); 3942 } 3943 3944 /************************************************************************ 3945 * Handle rescanning all the logical volumes when a notify event 3946 * causes the drives to come online or offline. 3947 */ 3948 static void 3949 ciss_notify_rescan_logical(struct ciss_softc *sc) 3950 { 3951 struct ciss_lun_report *cll; 3952 struct ciss_ldrive *ld; 3953 int i, j, ndrives; 3954 3955 /* 3956 * We must rescan all logical volumes to get the right logical 3957 * drive address. 3958 */ 3959 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 3960 sc->ciss_cfg->max_logical_supported); 3961 if (cll == NULL) 3962 return; 3963 3964 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 3965 3966 /* 3967 * Delete any of the drives which were destroyed by the 3968 * firmware. 3969 */ 3970 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 3971 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) { 3972 ld = &sc->ciss_logical[i][j]; 3973 3974 if (ld->cl_update == 0) 3975 continue; 3976 3977 if (ld->cl_status != CISS_LD_ONLINE) { 3978 ciss_cam_rescan_target(sc, i, j); 3979 ld->cl_update = 0; 3980 if (ld->cl_ldrive) 3981 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 3982 if (ld->cl_lstatus) 3983 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 3984 3985 ld->cl_ldrive = NULL; 3986 ld->cl_lstatus = NULL; 3987 } 3988 } 3989 } 3990 3991 /* 3992 * Scan for new drives. 3993 */ 3994 for (i = 0; i < ndrives; i++) { 3995 int bus, target; 3996 3997 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 3998 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 3999 ld = &sc->ciss_logical[bus][target]; 4000 4001 if (ld->cl_update == 0) 4002 continue; 4003 4004 ld->cl_update = 0; 4005 ld->cl_address = cll->lun[i]; 4006 ld->cl_controller = &sc->ciss_controllers[bus]; 4007 if (ciss_identify_logical(sc, ld) == 0) { 4008 ciss_cam_rescan_target(sc, bus, target); 4009 } 4010 } 4011 free(cll, CISS_MALLOC_CLASS); 4012 } 4013 4014 /************************************************************************ 4015 * Handle a notify event relating to the status of a logical drive. 4016 * 4017 * XXX need to be able to defer some of these to properly handle 4018 * calling the "ID Physical drive" command, unless the 'extended' 4019 * drive IDs are always in BIG_MAP format. 4020 */ 4021 static void 4022 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn) 4023 { 4024 struct ciss_ldrive *ld; 4025 int ostatus, bus, target; 4026 4027 debug_called(2); 4028 4029 bus = cn->device.physical.bus; 4030 target = cn->data.logical_status.logical_drive; 4031 ld = &sc->ciss_logical[bus][target]; 4032 4033 switch (cn->subclass) { 4034 case CISS_NOTIFY_LOGICAL_STATUS: 4035 switch (cn->detail) { 4036 case 0: 4037 ciss_name_device(sc, bus, target); 4038 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n", 4039 cn->data.logical_status.logical_drive, ld->cl_name, 4040 ciss_name_ldrive_status(cn->data.logical_status.previous_state), 4041 ciss_name_ldrive_status(cn->data.logical_status.new_state), 4042 cn->data.logical_status.spare_state, 4043 "\20\1configured\2rebuilding\3failed\4in use\5available\n"); 4044 4045 /* 4046 * Update our idea of the drive's status. 4047 */ 4048 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state); 4049 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 4050 if (ld->cl_lstatus != NULL) 4051 ld->cl_lstatus->status = cn->data.logical_status.new_state; 4052 4053 /* 4054 * Have CAM rescan the drive if its status has changed. 4055 */ 4056 if (ostatus != ld->cl_status) { 4057 ld->cl_update = 1; 4058 ciss_notify_rescan_logical(sc); 4059 } 4060 4061 break; 4062 4063 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */ 4064 ciss_name_device(sc, bus, target); 4065 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n", 4066 cn->data.logical_status.logical_drive, ld->cl_name); 4067 ciss_accept_media(sc, ld); 4068 4069 ld->cl_update = 1; 4070 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 4071 ciss_notify_rescan_logical(sc); 4072 break; 4073 4074 case 2: 4075 case 3: 4076 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n", 4077 cn->data.rebuild_aborted.logical_drive, 4078 ld->cl_name, 4079 (cn->detail == 2) ? "read" : "write"); 4080 break; 4081 } 4082 break; 4083 4084 case CISS_NOTIFY_LOGICAL_ERROR: 4085 if (cn->detail == 0) { 4086 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n", 4087 cn->data.io_error.logical_drive, 4088 ld->cl_name, 4089 cn->data.io_error.failure_bus, 4090 cn->data.io_error.failure_drive); 4091 /* XXX should we take the drive down at this point, or will we be told? */ 4092 } 4093 break; 4094 4095 case CISS_NOTIFY_LOGICAL_SURFACE: 4096 if (cn->detail == 0) 4097 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n", 4098 cn->data.consistency_completed.logical_drive, 4099 ld->cl_name); 4100 break; 4101 } 4102 } 4103 4104 /************************************************************************ 4105 * Handle a notify event relating to the status of a physical drive. 4106 */ 4107 static void 4108 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn) 4109 { 4110 } 4111 4112 /************************************************************************ 4113 * Handle a notify event relating to the status of a physical drive. 4114 */ 4115 static void 4116 ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn) 4117 { 4118 struct ciss_lun_report *cll = NULL; 4119 int bus, target; 4120 4121 switch (cn->subclass) { 4122 case CISS_NOTIFY_HOTPLUG_PHYSICAL: 4123 case CISS_NOTIFY_HOTPLUG_NONDISK: 4124 bus = CISS_BIG_MAP_BUS(sc, cn->data.drive.big_physical_drive_number); 4125 target = 4126 CISS_BIG_MAP_TARGET(sc, cn->data.drive.big_physical_drive_number); 4127 4128 if (cn->detail == 0) { 4129 /* 4130 * Mark the device offline so that it'll start producing selection 4131 * timeouts to the upper layer. 4132 */ 4133 if ((bus >= 0) && (target >= 0)) 4134 sc->ciss_physical[bus][target].cp_online = 0; 4135 } else { 4136 /* 4137 * Rescan the physical lun list for new items 4138 */ 4139 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 4140 sc->ciss_cfg->max_physical_supported); 4141 if (cll == NULL) { 4142 ciss_printf(sc, "Warning, cannot get physical lun list\n"); 4143 break; 4144 } 4145 ciss_filter_physical(sc, cll); 4146 } 4147 break; 4148 4149 default: 4150 ciss_printf(sc, "Unknown hotplug event %d\n", cn->subclass); 4151 return; 4152 } 4153 4154 if (cll != NULL) 4155 free(cll, CISS_MALLOC_CLASS); 4156 } 4157 4158 /************************************************************************ 4159 * Handle deferred processing of notify events. Notify events may need 4160 * sleep which is unsafe during an interrupt. 4161 */ 4162 static void 4163 ciss_notify_thread(void *arg) 4164 { 4165 struct ciss_softc *sc; 4166 struct ciss_request *cr; 4167 struct ciss_notify *cn; 4168 4169 sc = (struct ciss_softc *)arg; 4170 mtx_lock(&sc->ciss_mtx); 4171 4172 for (;;) { 4173 if (STAILQ_EMPTY(&sc->ciss_notify) != 0 && 4174 (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) == 0) { 4175 msleep(&sc->ciss_notify, &sc->ciss_mtx, PUSER, "idle", 0); 4176 } 4177 4178 if (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) 4179 break; 4180 4181 cr = ciss_dequeue_notify(sc); 4182 4183 if (cr == NULL) 4184 panic("cr null"); 4185 cn = (struct ciss_notify *)cr->cr_data; 4186 4187 switch (cn->class) { 4188 case CISS_NOTIFY_HOTPLUG: 4189 ciss_notify_hotplug(sc, cn); 4190 break; 4191 case CISS_NOTIFY_LOGICAL: 4192 ciss_notify_logical(sc, cn); 4193 break; 4194 case CISS_NOTIFY_PHYSICAL: 4195 ciss_notify_physical(sc, cn); 4196 break; 4197 } 4198 4199 ciss_release_request(cr); 4200 4201 } 4202 sc->ciss_notify_thread = NULL; 4203 wakeup(&sc->ciss_notify_thread); 4204 4205 mtx_unlock(&sc->ciss_mtx); 4206 kproc_exit(0); 4207 } 4208 4209 /************************************************************************ 4210 * Start the notification kernel thread. 4211 */ 4212 static void 4213 ciss_spawn_notify_thread(struct ciss_softc *sc) 4214 { 4215 4216 if (kproc_create((void(*)(void *))ciss_notify_thread, sc, 4217 &sc->ciss_notify_thread, 0, 0, "ciss_notify%d", 4218 device_get_unit(sc->ciss_dev))) 4219 panic("Could not create notify thread\n"); 4220 } 4221 4222 /************************************************************************ 4223 * Kill the notification kernel thread. 4224 */ 4225 static void 4226 ciss_kill_notify_thread(struct ciss_softc *sc) 4227 { 4228 4229 if (sc->ciss_notify_thread == NULL) 4230 return; 4231 4232 sc->ciss_flags |= CISS_FLAG_THREAD_SHUT; 4233 wakeup(&sc->ciss_notify); 4234 msleep(&sc->ciss_notify_thread, &sc->ciss_mtx, PUSER, "thtrm", 0); 4235 } 4236 4237 /************************************************************************ 4238 * Print a request. 4239 */ 4240 static void 4241 ciss_print_request(struct ciss_request *cr) 4242 { 4243 struct ciss_softc *sc; 4244 struct ciss_command *cc; 4245 int i; 4246 4247 sc = cr->cr_sc; 4248 cc = cr->cr_cc; 4249 4250 ciss_printf(sc, "REQUEST @ %p\n", cr); 4251 ciss_printf(sc, " data %p/%d tag %d flags %b\n", 4252 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags, 4253 "\20\1mapped\2sleep\3poll\4dataout\5datain\n"); 4254 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n", 4255 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag); 4256 switch(cc->header.address.mode.mode) { 4257 case CISS_HDR_ADDRESS_MODE_PERIPHERAL: 4258 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL: 4259 ciss_printf(sc, " physical bus %d target %d\n", 4260 cc->header.address.physical.bus, cc->header.address.physical.target); 4261 break; 4262 case CISS_HDR_ADDRESS_MODE_LOGICAL: 4263 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun); 4264 break; 4265 } 4266 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n", 4267 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" : 4268 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" : 4269 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??", 4270 cc->cdb.cdb_length, 4271 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" : 4272 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??", 4273 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" : 4274 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" : 4275 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" : 4276 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" : 4277 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??"); 4278 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " "); 4279 4280 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) { 4281 /* XXX print error info */ 4282 } else { 4283 /* since we don't use chained s/g, don't support it here */ 4284 for (i = 0; i < cc->header.sg_in_list; i++) { 4285 if ((i % 4) == 0) 4286 ciss_printf(sc, " "); 4287 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length); 4288 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1))) 4289 printf("\n"); 4290 } 4291 } 4292 } 4293 4294 /************************************************************************ 4295 * Print information about the status of a logical drive. 4296 */ 4297 static void 4298 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld) 4299 { 4300 int bus, target, i; 4301 4302 if (ld->cl_lstatus == NULL) { 4303 printf("does not exist\n"); 4304 return; 4305 } 4306 4307 /* print drive status */ 4308 switch(ld->cl_lstatus->status) { 4309 case CISS_LSTATUS_OK: 4310 printf("online\n"); 4311 break; 4312 case CISS_LSTATUS_INTERIM_RECOVERY: 4313 printf("in interim recovery mode\n"); 4314 break; 4315 case CISS_LSTATUS_READY_RECOVERY: 4316 printf("ready to begin recovery\n"); 4317 break; 4318 case CISS_LSTATUS_RECOVERING: 4319 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4320 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4321 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n", 4322 bus, target, ld->cl_lstatus->blocks_to_recover); 4323 break; 4324 case CISS_LSTATUS_EXPANDING: 4325 printf("being expanded, %u blocks remaining\n", 4326 ld->cl_lstatus->blocks_to_recover); 4327 break; 4328 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4329 printf("queued for expansion\n"); 4330 break; 4331 case CISS_LSTATUS_FAILED: 4332 printf("queued for expansion\n"); 4333 break; 4334 case CISS_LSTATUS_WRONG_PDRIVE: 4335 printf("wrong physical drive inserted\n"); 4336 break; 4337 case CISS_LSTATUS_MISSING_PDRIVE: 4338 printf("missing a needed physical drive\n"); 4339 break; 4340 case CISS_LSTATUS_BECOMING_READY: 4341 printf("becoming ready\n"); 4342 break; 4343 } 4344 4345 /* print failed physical drives */ 4346 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) { 4347 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]); 4348 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]); 4349 if (bus == -1) 4350 continue; 4351 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target, 4352 ld->cl_lstatus->drive_failure_map[i]); 4353 } 4354 } 4355 4356 #ifdef CISS_DEBUG 4357 #include "opt_ddb.h" 4358 #ifdef DDB 4359 #include <ddb/ddb.h> 4360 /************************************************************************ 4361 * Print information about the controller/driver. 4362 */ 4363 static void 4364 ciss_print_adapter(struct ciss_softc *sc) 4365 { 4366 int i, j; 4367 4368 ciss_printf(sc, "ADAPTER:\n"); 4369 for (i = 0; i < CISSQ_COUNT; i++) { 4370 ciss_printf(sc, "%s %d/%d\n", 4371 i == 0 ? "free" : 4372 i == 1 ? "busy" : "complete", 4373 sc->ciss_qstat[i].q_length, 4374 sc->ciss_qstat[i].q_max); 4375 } 4376 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests); 4377 ciss_printf(sc, "flags %b\n", sc->ciss_flags, 4378 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n"); 4379 4380 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 4381 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) { 4382 ciss_printf(sc, "LOGICAL DRIVE %d: ", i); 4383 ciss_print_ldrive(sc, &sc->ciss_logical[i][j]); 4384 } 4385 } 4386 4387 /* XXX Should physical drives be printed out here? */ 4388 4389 for (i = 1; i < sc->ciss_max_requests; i++) 4390 ciss_print_request(sc->ciss_request + i); 4391 } 4392 4393 /* DDB hook */ 4394 DB_COMMAND(ciss_prt, db_ciss_prt) 4395 { 4396 struct ciss_softc *sc; 4397 devclass_t dc; 4398 int maxciss, i; 4399 4400 dc = devclass_find("ciss"); 4401 if ( dc == NULL ) { 4402 printf("%s: can't find devclass!\n", __func__); 4403 return; 4404 } 4405 maxciss = devclass_get_maxunit(dc); 4406 for (i = 0; i < maxciss; i++) { 4407 sc = devclass_get_softc(dc, i); 4408 ciss_print_adapter(sc); 4409 } 4410 } 4411 #endif 4412 #endif 4413 4414 /************************************************************************ 4415 * Return a name for a logical drive status value. 4416 */ 4417 static const char * 4418 ciss_name_ldrive_status(int status) 4419 { 4420 switch (status) { 4421 case CISS_LSTATUS_OK: 4422 return("OK"); 4423 case CISS_LSTATUS_FAILED: 4424 return("failed"); 4425 case CISS_LSTATUS_NOT_CONFIGURED: 4426 return("not configured"); 4427 case CISS_LSTATUS_INTERIM_RECOVERY: 4428 return("interim recovery"); 4429 case CISS_LSTATUS_READY_RECOVERY: 4430 return("ready for recovery"); 4431 case CISS_LSTATUS_RECOVERING: 4432 return("recovering"); 4433 case CISS_LSTATUS_WRONG_PDRIVE: 4434 return("wrong physical drive inserted"); 4435 case CISS_LSTATUS_MISSING_PDRIVE: 4436 return("missing physical drive"); 4437 case CISS_LSTATUS_EXPANDING: 4438 return("expanding"); 4439 case CISS_LSTATUS_BECOMING_READY: 4440 return("becoming ready"); 4441 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4442 return("queued for expansion"); 4443 } 4444 return("unknown status"); 4445 } 4446 4447 /************************************************************************ 4448 * Return an online/offline/nonexistent value for a logical drive 4449 * status value. 4450 */ 4451 static int 4452 ciss_decode_ldrive_status(int status) 4453 { 4454 switch(status) { 4455 case CISS_LSTATUS_NOT_CONFIGURED: 4456 return(CISS_LD_NONEXISTENT); 4457 4458 case CISS_LSTATUS_OK: 4459 case CISS_LSTATUS_INTERIM_RECOVERY: 4460 case CISS_LSTATUS_READY_RECOVERY: 4461 case CISS_LSTATUS_RECOVERING: 4462 case CISS_LSTATUS_EXPANDING: 4463 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4464 return(CISS_LD_ONLINE); 4465 4466 case CISS_LSTATUS_FAILED: 4467 case CISS_LSTATUS_WRONG_PDRIVE: 4468 case CISS_LSTATUS_MISSING_PDRIVE: 4469 case CISS_LSTATUS_BECOMING_READY: 4470 default: 4471 return(CISS_LD_OFFLINE); 4472 } 4473 } 4474 4475 4476 /************************************************************************ 4477 * Return a name for a logical drive's organisation. 4478 */ 4479 static const char * 4480 ciss_name_ldrive_org(int org) 4481 { 4482 switch(org) { 4483 case CISS_LDRIVE_RAID0: 4484 return("RAID 0"); 4485 case CISS_LDRIVE_RAID1: 4486 return("RAID 1(1+0)"); 4487 case CISS_LDRIVE_RAID4: 4488 return("RAID 4"); 4489 case CISS_LDRIVE_RAID5: 4490 return("RAID 5"); 4491 case CISS_LDRIVE_RAID51: 4492 return("RAID 5+1"); 4493 case CISS_LDRIVE_RAIDADG: 4494 return("RAID ADG"); 4495 } 4496 return("unknown"); 4497 } 4498 4499 /************************************************************************ 4500 * Return a name for a command status value. 4501 */ 4502 static const char * 4503 ciss_name_command_status(int status) 4504 { 4505 switch(status) { 4506 case CISS_CMD_STATUS_SUCCESS: 4507 return("success"); 4508 case CISS_CMD_STATUS_TARGET_STATUS: 4509 return("target status"); 4510 case CISS_CMD_STATUS_DATA_UNDERRUN: 4511 return("data underrun"); 4512 case CISS_CMD_STATUS_DATA_OVERRUN: 4513 return("data overrun"); 4514 case CISS_CMD_STATUS_INVALID_COMMAND: 4515 return("invalid command"); 4516 case CISS_CMD_STATUS_PROTOCOL_ERROR: 4517 return("protocol error"); 4518 case CISS_CMD_STATUS_HARDWARE_ERROR: 4519 return("hardware error"); 4520 case CISS_CMD_STATUS_CONNECTION_LOST: 4521 return("connection lost"); 4522 case CISS_CMD_STATUS_ABORTED: 4523 return("aborted"); 4524 case CISS_CMD_STATUS_ABORT_FAILED: 4525 return("abort failed"); 4526 case CISS_CMD_STATUS_UNSOLICITED_ABORT: 4527 return("unsolicited abort"); 4528 case CISS_CMD_STATUS_TIMEOUT: 4529 return("timeout"); 4530 case CISS_CMD_STATUS_UNABORTABLE: 4531 return("unabortable"); 4532 } 4533 return("unknown status"); 4534 } 4535 4536 /************************************************************************ 4537 * Handle an open on the control device. 4538 */ 4539 static int 4540 ciss_open(struct cdev *dev, int flags, int fmt, struct thread *p) 4541 { 4542 struct ciss_softc *sc; 4543 4544 debug_called(1); 4545 4546 sc = (struct ciss_softc *)dev->si_drv1; 4547 4548 /* we might want to veto if someone already has us open */ 4549 4550 mtx_lock(&sc->ciss_mtx); 4551 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN; 4552 mtx_unlock(&sc->ciss_mtx); 4553 return(0); 4554 } 4555 4556 /************************************************************************ 4557 * Handle the last close on the control device. 4558 */ 4559 static int 4560 ciss_close(struct cdev *dev, int flags, int fmt, struct thread *p) 4561 { 4562 struct ciss_softc *sc; 4563 4564 debug_called(1); 4565 4566 sc = (struct ciss_softc *)dev->si_drv1; 4567 4568 mtx_lock(&sc->ciss_mtx); 4569 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN; 4570 mtx_unlock(&sc->ciss_mtx); 4571 return (0); 4572 } 4573 4574 /******************************************************************************** 4575 * Handle adapter-specific control operations. 4576 * 4577 * Note that the API here is compatible with the Linux driver, in order to 4578 * simplify the porting of Compaq's userland tools. 4579 */ 4580 static int 4581 ciss_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag, struct thread *p) 4582 { 4583 struct ciss_softc *sc; 4584 IOCTL_Command_struct *ioc = (IOCTL_Command_struct *)addr; 4585 #ifdef __amd64__ 4586 IOCTL_Command_struct32 *ioc32 = (IOCTL_Command_struct32 *)addr; 4587 IOCTL_Command_struct ioc_swab; 4588 #endif 4589 int error; 4590 4591 debug_called(1); 4592 4593 sc = (struct ciss_softc *)dev->si_drv1; 4594 error = 0; 4595 mtx_lock(&sc->ciss_mtx); 4596 4597 switch(cmd) { 4598 case CCISS_GETQSTATS: 4599 { 4600 union ciss_statrequest *cr = (union ciss_statrequest *)addr; 4601 4602 switch (cr->cs_item) { 4603 case CISSQ_FREE: 4604 case CISSQ_NOTIFY: 4605 bcopy(&sc->ciss_qstat[cr->cs_item], &cr->cs_qstat, 4606 sizeof(struct ciss_qstat)); 4607 break; 4608 default: 4609 error = ENOIOCTL; 4610 break; 4611 } 4612 4613 break; 4614 } 4615 4616 case CCISS_GETPCIINFO: 4617 { 4618 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr; 4619 4620 pis->bus = pci_get_bus(sc->ciss_dev); 4621 pis->dev_fn = pci_get_slot(sc->ciss_dev); 4622 pis->board_id = (pci_get_subvendor(sc->ciss_dev) << 16) | 4623 pci_get_subdevice(sc->ciss_dev); 4624 4625 break; 4626 } 4627 4628 case CCISS_GETINTINFO: 4629 { 4630 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4631 4632 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay; 4633 cis->count = sc->ciss_cfg->interrupt_coalesce_count; 4634 4635 break; 4636 } 4637 4638 case CCISS_SETINTINFO: 4639 { 4640 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4641 4642 if ((cis->delay == 0) && (cis->count == 0)) { 4643 error = EINVAL; 4644 break; 4645 } 4646 4647 /* 4648 * XXX apparently this is only safe if the controller is idle, 4649 * we should suspend it before doing this. 4650 */ 4651 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay; 4652 sc->ciss_cfg->interrupt_coalesce_count = cis->count; 4653 4654 if (ciss_update_config(sc)) 4655 error = EIO; 4656 4657 /* XXX resume the controller here */ 4658 break; 4659 } 4660 4661 case CCISS_GETNODENAME: 4662 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr, 4663 sizeof(NodeName_type)); 4664 break; 4665 4666 case CCISS_SETNODENAME: 4667 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name, 4668 sizeof(NodeName_type)); 4669 if (ciss_update_config(sc)) 4670 error = EIO; 4671 break; 4672 4673 case CCISS_GETHEARTBEAT: 4674 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat; 4675 break; 4676 4677 case CCISS_GETBUSTYPES: 4678 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types; 4679 break; 4680 4681 case CCISS_GETFIRMVER: 4682 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr, 4683 sizeof(FirmwareVer_type)); 4684 break; 4685 4686 case CCISS_GETDRIVERVER: 4687 *(DriverVer_type *)addr = CISS_DRIVER_VERSION; 4688 break; 4689 4690 case CCISS_REVALIDVOLS: 4691 /* 4692 * This is a bit ugly; to do it "right" we really need 4693 * to find any disks that have changed, kick CAM off them, 4694 * then rescan only these disks. It'd be nice if they 4695 * a) told us which disk(s) they were going to play with, 4696 * and b) which ones had arrived. 8( 4697 */ 4698 break; 4699 4700 #ifdef __amd64__ 4701 case CCISS_PASSTHRU32: 4702 ioc_swab.LUN_info = ioc32->LUN_info; 4703 ioc_swab.Request = ioc32->Request; 4704 ioc_swab.error_info = ioc32->error_info; 4705 ioc_swab.buf_size = ioc32->buf_size; 4706 ioc_swab.buf = (u_int8_t *)(uintptr_t)ioc32->buf; 4707 ioc = &ioc_swab; 4708 /* FALLTHROUGH */ 4709 #endif 4710 4711 case CCISS_PASSTHRU: 4712 error = ciss_user_command(sc, ioc); 4713 break; 4714 4715 default: 4716 debug(0, "unknown ioctl 0x%lx", cmd); 4717 4718 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO); 4719 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO); 4720 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO); 4721 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME); 4722 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME); 4723 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT); 4724 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES); 4725 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER); 4726 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER); 4727 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS); 4728 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU); 4729 4730 error = ENOIOCTL; 4731 break; 4732 } 4733 4734 mtx_unlock(&sc->ciss_mtx); 4735 return(error); 4736 } 4737