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 #ifdef CISS_DEBUG 111 #include "opt_ddb.h" 112 #endif 113 114 static MALLOC_DEFINE(CISS_MALLOC_CLASS, "ciss_data", 115 "ciss internal data buffers"); 116 117 /* pci interface */ 118 static int ciss_lookup(device_t dev); 119 static int ciss_probe(device_t dev); 120 static int ciss_attach(device_t dev); 121 static int ciss_detach(device_t dev); 122 static int ciss_shutdown(device_t dev); 123 124 /* (de)initialisation functions, control wrappers */ 125 static int ciss_init_pci(struct ciss_softc *sc); 126 static int ciss_setup_msix(struct ciss_softc *sc); 127 static int ciss_init_perf(struct ciss_softc *sc); 128 static int ciss_wait_adapter(struct ciss_softc *sc); 129 static int ciss_flush_adapter(struct ciss_softc *sc); 130 static int ciss_init_requests(struct ciss_softc *sc); 131 static void ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, 132 int nseg, int error); 133 static int ciss_identify_adapter(struct ciss_softc *sc); 134 static int ciss_init_logical(struct ciss_softc *sc); 135 static int ciss_init_physical(struct ciss_softc *sc); 136 static int ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll); 137 static int ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld); 138 static int ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld); 139 static int ciss_update_config(struct ciss_softc *sc); 140 static int ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld); 141 static void ciss_init_sysctl(struct ciss_softc *sc); 142 static void ciss_soft_reset(struct ciss_softc *sc); 143 static void ciss_free(struct ciss_softc *sc); 144 static void ciss_spawn_notify_thread(struct ciss_softc *sc); 145 static void ciss_kill_notify_thread(struct ciss_softc *sc); 146 147 /* request submission/completion */ 148 static int ciss_start(struct ciss_request *cr); 149 static void ciss_done(struct ciss_softc *sc, cr_qhead_t *qh); 150 static void ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh); 151 static void ciss_intr(void *arg); 152 static void ciss_perf_intr(void *arg); 153 static void ciss_perf_msi_intr(void *arg); 154 static void ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh); 155 static int _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func); 156 static int ciss_synch_request(struct ciss_request *cr, int timeout); 157 static int ciss_poll_request(struct ciss_request *cr, int timeout); 158 static int ciss_wait_request(struct ciss_request *cr, int timeout); 159 #if 0 160 static int ciss_abort_request(struct ciss_request *cr); 161 #endif 162 163 /* request queueing */ 164 static int ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp); 165 static void ciss_preen_command(struct ciss_request *cr); 166 static void ciss_release_request(struct ciss_request *cr); 167 168 /* request helpers */ 169 static int ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 170 int opcode, void **bufp, size_t bufsize); 171 static int ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc); 172 173 /* DMA map/unmap */ 174 static int ciss_map_request(struct ciss_request *cr); 175 static void ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, 176 int nseg, int error); 177 static void ciss_unmap_request(struct ciss_request *cr); 178 179 /* CAM interface */ 180 static int ciss_cam_init(struct ciss_softc *sc); 181 static void ciss_cam_rescan_target(struct ciss_softc *sc, 182 int bus, int target); 183 static void ciss_cam_action(struct cam_sim *sim, union ccb *ccb); 184 static int ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio); 185 static int ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio); 186 static void ciss_cam_poll(struct cam_sim *sim); 187 static void ciss_cam_complete(struct ciss_request *cr); 188 static void ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio); 189 static int ciss_name_device(struct ciss_softc *sc, int bus, int target); 190 191 /* periodic status monitoring */ 192 static void ciss_periodic(void *arg); 193 static void ciss_nop_complete(struct ciss_request *cr); 194 static void ciss_disable_adapter(struct ciss_softc *sc); 195 static void ciss_notify_event(struct ciss_softc *sc); 196 static void ciss_notify_complete(struct ciss_request *cr); 197 static int ciss_notify_abort(struct ciss_softc *sc); 198 static int ciss_notify_abort_bmic(struct ciss_softc *sc); 199 static void ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn); 200 static void ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn); 201 static void ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn); 202 203 /* debugging output */ 204 #ifdef DDB 205 static void ciss_print_request(struct ciss_request *cr); 206 #endif 207 static void ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld); 208 static const char *ciss_name_ldrive_status(int status); 209 static int ciss_decode_ldrive_status(int status); 210 static const char *ciss_name_ldrive_org(int org); 211 static const char *ciss_name_command_status(int status); 212 213 /* 214 * PCI bus interface. 215 */ 216 static device_method_t ciss_methods[] = { 217 /* Device interface */ 218 DEVMETHOD(device_probe, ciss_probe), 219 DEVMETHOD(device_attach, ciss_attach), 220 DEVMETHOD(device_detach, ciss_detach), 221 DEVMETHOD(device_shutdown, ciss_shutdown), 222 { 0, 0 } 223 }; 224 225 static driver_t ciss_pci_driver = { 226 "ciss", 227 ciss_methods, 228 sizeof(struct ciss_softc) 229 }; 230 231 /* 232 * Control device interface. 233 */ 234 static d_open_t ciss_open; 235 static d_close_t ciss_close; 236 static d_ioctl_t ciss_ioctl; 237 238 static struct cdevsw ciss_cdevsw = { 239 .d_version = D_VERSION, 240 .d_flags = 0, 241 .d_open = ciss_open, 242 .d_close = ciss_close, 243 .d_ioctl = ciss_ioctl, 244 .d_name = "ciss", 245 }; 246 247 /* 248 * This tunable can be set at boot time and controls whether physical devices 249 * that are marked hidden by the firmware should be exposed anyways. 250 */ 251 static unsigned int ciss_expose_hidden_physical = 0; 252 TUNABLE_INT("hw.ciss.expose_hidden_physical", &ciss_expose_hidden_physical); 253 254 static unsigned int ciss_nop_message_heartbeat = 0; 255 TUNABLE_INT("hw.ciss.nop_message_heartbeat", &ciss_nop_message_heartbeat); 256 257 /* 258 * This tunable can force a particular transport to be used: 259 * <= 0 : use default 260 * 1 : force simple 261 * 2 : force performant 262 */ 263 static int ciss_force_transport = 0; 264 TUNABLE_INT("hw.ciss.force_transport", &ciss_force_transport); 265 266 /* 267 * This tunable can force a particular interrupt delivery method to be used: 268 * <= 0 : use default 269 * 1 : force INTx 270 * 2 : force MSIX 271 */ 272 static int ciss_force_interrupt = 0; 273 TUNABLE_INT("hw.ciss.force_interrupt", &ciss_force_interrupt); 274 275 /************************************************************************ 276 * CISS adapters amazingly don't have a defined programming interface 277 * value. (One could say some very despairing things about PCI and 278 * people just not getting the general idea.) So we are forced to 279 * stick with matching against subvendor/subdevice, and thus have to 280 * be updated for every new CISS adapter that appears. 281 */ 282 #define CISS_BOARD_UNKNWON 0 283 #define CISS_BOARD_SA5 1 284 #define CISS_BOARD_SA5B 2 285 #define CISS_BOARD_NOMSI (1<<4) 286 #define CISS_BOARD_SIMPLE (1<<5) 287 288 static struct 289 { 290 u_int16_t subvendor; 291 u_int16_t subdevice; 292 int flags; 293 char *desc; 294 } ciss_vendor_data[] = { 295 { 0x0e11, 0x4070, CISS_BOARD_SA5|CISS_BOARD_NOMSI|CISS_BOARD_SIMPLE, 296 "Compaq Smart Array 5300" }, 297 { 0x0e11, 0x4080, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 5i" }, 298 { 0x0e11, 0x4082, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 532" }, 299 { 0x0e11, 0x4083, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "HP Smart Array 5312" }, 300 { 0x0e11, 0x4091, CISS_BOARD_SA5, "HP Smart Array 6i" }, 301 { 0x0e11, 0x409A, CISS_BOARD_SA5, "HP Smart Array 641" }, 302 { 0x0e11, 0x409B, CISS_BOARD_SA5, "HP Smart Array 642" }, 303 { 0x0e11, 0x409C, CISS_BOARD_SA5, "HP Smart Array 6400" }, 304 { 0x0e11, 0x409D, CISS_BOARD_SA5, "HP Smart Array 6400 EM" }, 305 { 0x103C, 0x3211, CISS_BOARD_SA5, "HP Smart Array E200i" }, 306 { 0x103C, 0x3212, CISS_BOARD_SA5, "HP Smart Array E200" }, 307 { 0x103C, 0x3213, CISS_BOARD_SA5, "HP Smart Array E200i" }, 308 { 0x103C, 0x3214, CISS_BOARD_SA5, "HP Smart Array E200i" }, 309 { 0x103C, 0x3215, CISS_BOARD_SA5, "HP Smart Array E200i" }, 310 { 0x103C, 0x3220, CISS_BOARD_SA5, "HP Smart Array" }, 311 { 0x103C, 0x3222, CISS_BOARD_SA5, "HP Smart Array" }, 312 { 0x103C, 0x3223, CISS_BOARD_SA5, "HP Smart Array P800" }, 313 { 0x103C, 0x3225, CISS_BOARD_SA5, "HP Smart Array P600" }, 314 { 0x103C, 0x3230, CISS_BOARD_SA5, "HP Smart Array" }, 315 { 0x103C, 0x3231, CISS_BOARD_SA5, "HP Smart Array" }, 316 { 0x103C, 0x3232, CISS_BOARD_SA5, "HP Smart Array" }, 317 { 0x103C, 0x3233, CISS_BOARD_SA5, "HP Smart Array" }, 318 { 0x103C, 0x3234, CISS_BOARD_SA5, "HP Smart Array P400" }, 319 { 0x103C, 0x3235, CISS_BOARD_SA5, "HP Smart Array P400i" }, 320 { 0x103C, 0x3236, CISS_BOARD_SA5, "HP Smart Array" }, 321 { 0x103C, 0x3237, CISS_BOARD_SA5, "HP Smart Array E500" }, 322 { 0x103C, 0x3238, CISS_BOARD_SA5, "HP Smart Array" }, 323 { 0x103C, 0x3239, CISS_BOARD_SA5, "HP Smart Array" }, 324 { 0x103C, 0x323A, CISS_BOARD_SA5, "HP Smart Array" }, 325 { 0x103C, 0x323B, CISS_BOARD_SA5, "HP Smart Array" }, 326 { 0x103C, 0x323C, CISS_BOARD_SA5, "HP Smart Array" }, 327 { 0x103C, 0x323D, CISS_BOARD_SA5, "HP Smart Array P700m" }, 328 { 0x103C, 0x3241, CISS_BOARD_SA5, "HP Smart Array P212" }, 329 { 0x103C, 0x3243, CISS_BOARD_SA5, "HP Smart Array P410" }, 330 { 0x103C, 0x3245, CISS_BOARD_SA5, "HP Smart Array P410i" }, 331 { 0x103C, 0x3247, CISS_BOARD_SA5, "HP Smart Array P411" }, 332 { 0x103C, 0x3249, CISS_BOARD_SA5, "HP Smart Array P812" }, 333 { 0x103C, 0x324A, CISS_BOARD_SA5, "HP Smart Array P712m" }, 334 { 0x103C, 0x324B, CISS_BOARD_SA5, "HP Smart Array" }, 335 { 0x103C, 0x3350, CISS_BOARD_SA5, "HP Smart Array P222" }, 336 { 0x103C, 0x3351, CISS_BOARD_SA5, "HP Smart Array P420" }, 337 { 0x103C, 0x3352, CISS_BOARD_SA5, "HP Smart Array P421" }, 338 { 0x103C, 0x3353, CISS_BOARD_SA5, "HP Smart Array P822" }, 339 { 0x103C, 0x3354, CISS_BOARD_SA5, "HP Smart Array P420i" }, 340 { 0x103C, 0x3355, CISS_BOARD_SA5, "HP Smart Array P220i" }, 341 { 0x103C, 0x3356, CISS_BOARD_SA5, "HP Smart Array P721m" }, 342 { 0x103C, 0x1920, CISS_BOARD_SA5, "HP Smart Array P430i" }, 343 { 0x103C, 0x1921, CISS_BOARD_SA5, "HP Smart Array P830i" }, 344 { 0x103C, 0x1922, CISS_BOARD_SA5, "HP Smart Array P430" }, 345 { 0x103C, 0x1923, CISS_BOARD_SA5, "HP Smart Array P431" }, 346 { 0x103C, 0x1924, CISS_BOARD_SA5, "HP Smart Array P830" }, 347 { 0x103C, 0x1926, CISS_BOARD_SA5, "HP Smart Array P731m" }, 348 { 0x103C, 0x1928, CISS_BOARD_SA5, "HP Smart Array P230i" }, 349 { 0x103C, 0x1929, CISS_BOARD_SA5, "HP Smart Array P530" }, 350 { 0x103C, 0x192A, CISS_BOARD_SA5, "HP Smart Array P531" }, 351 { 0x103C, 0x21BD, CISS_BOARD_SA5, "HP Smart Array P244br" }, 352 { 0x103C, 0x21BE, CISS_BOARD_SA5, "HP Smart Array P741m" }, 353 { 0x103C, 0x21BF, CISS_BOARD_SA5, "HP Smart Array H240ar" }, 354 { 0x103C, 0x21C0, CISS_BOARD_SA5, "HP Smart Array P440ar" }, 355 { 0x103C, 0x21C1, CISS_BOARD_SA5, "HP Smart Array P840ar" }, 356 { 0x103C, 0x21C2, CISS_BOARD_SA5, "HP Smart Array P440" }, 357 { 0x103C, 0x21C3, CISS_BOARD_SA5, "HP Smart Array P441" }, 358 { 0x103C, 0x21C5, CISS_BOARD_SA5, "HP Smart Array P841" }, 359 { 0x103C, 0x21C6, CISS_BOARD_SA5, "HP Smart Array H244br" }, 360 { 0x103C, 0x21C7, CISS_BOARD_SA5, "HP Smart Array H240" }, 361 { 0x103C, 0x21C8, CISS_BOARD_SA5, "HP Smart Array H241" }, 362 { 0x103C, 0x21CA, CISS_BOARD_SA5, "HP Smart Array P246br" }, 363 { 0x103C, 0x21CB, CISS_BOARD_SA5, "HP Smart Array P840" }, 364 { 0x103C, 0x21CC, CISS_BOARD_SA5, "HP Smart Array P542d" }, 365 { 0x103C, 0x21CD, CISS_BOARD_SA5, "HP Smart Array P240nr" }, 366 { 0x103C, 0x21CE, CISS_BOARD_SA5, "HP Smart Array H240nr" }, 367 { 0, 0, 0, NULL } 368 }; 369 370 static devclass_t ciss_devclass; 371 DRIVER_MODULE(ciss, pci, ciss_pci_driver, ciss_devclass, 0, 0); 372 MODULE_PNP_INFO("U16:vendor;U16:device;", pci, ciss, ciss_vendor_data, 373 nitems(ciss_vendor_data) - 1); 374 MODULE_DEPEND(ciss, cam, 1, 1, 1); 375 MODULE_DEPEND(ciss, pci, 1, 1, 1); 376 377 /************************************************************************ 378 * Find a match for the device in our list of known adapters. 379 */ 380 static int 381 ciss_lookup(device_t dev) 382 { 383 int i; 384 385 for (i = 0; ciss_vendor_data[i].desc != NULL; i++) 386 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) && 387 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) { 388 return(i); 389 } 390 return(-1); 391 } 392 393 /************************************************************************ 394 * Match a known CISS adapter. 395 */ 396 static int 397 ciss_probe(device_t dev) 398 { 399 int i; 400 401 i = ciss_lookup(dev); 402 if (i != -1) { 403 device_set_desc(dev, ciss_vendor_data[i].desc); 404 return(BUS_PROBE_DEFAULT); 405 } 406 return(ENOENT); 407 } 408 409 /************************************************************************ 410 * Attach the driver to this adapter. 411 */ 412 static int 413 ciss_attach(device_t dev) 414 { 415 struct ciss_softc *sc; 416 int error; 417 418 debug_called(1); 419 420 #ifdef CISS_DEBUG 421 /* print structure/union sizes */ 422 debug_struct(ciss_command); 423 debug_struct(ciss_header); 424 debug_union(ciss_device_address); 425 debug_struct(ciss_cdb); 426 debug_struct(ciss_report_cdb); 427 debug_struct(ciss_notify_cdb); 428 debug_struct(ciss_notify); 429 debug_struct(ciss_message_cdb); 430 debug_struct(ciss_error_info_pointer); 431 debug_struct(ciss_error_info); 432 debug_struct(ciss_sg_entry); 433 debug_struct(ciss_config_table); 434 debug_struct(ciss_bmic_cdb); 435 debug_struct(ciss_bmic_id_ldrive); 436 debug_struct(ciss_bmic_id_lstatus); 437 debug_struct(ciss_bmic_id_table); 438 debug_struct(ciss_bmic_id_pdrive); 439 debug_struct(ciss_bmic_blink_pdrive); 440 debug_struct(ciss_bmic_flush_cache); 441 debug_const(CISS_MAX_REQUESTS); 442 debug_const(CISS_MAX_LOGICAL); 443 debug_const(CISS_INTERRUPT_COALESCE_DELAY); 444 debug_const(CISS_INTERRUPT_COALESCE_COUNT); 445 debug_const(CISS_COMMAND_ALLOC_SIZE); 446 debug_const(CISS_COMMAND_SG_LENGTH); 447 448 debug_type(cciss_pci_info_struct); 449 debug_type(cciss_coalint_struct); 450 debug_type(cciss_coalint_struct); 451 debug_type(NodeName_type); 452 debug_type(NodeName_type); 453 debug_type(Heartbeat_type); 454 debug_type(BusTypes_type); 455 debug_type(FirmwareVer_type); 456 debug_type(DriverVer_type); 457 debug_type(IOCTL_Command_struct); 458 #endif 459 460 sc = device_get_softc(dev); 461 sc->ciss_dev = dev; 462 mtx_init(&sc->ciss_mtx, "cissmtx", NULL, MTX_DEF); 463 callout_init_mtx(&sc->ciss_periodic, &sc->ciss_mtx, 0); 464 465 /* 466 * Do PCI-specific init. 467 */ 468 if ((error = ciss_init_pci(sc)) != 0) 469 goto out; 470 471 /* 472 * Initialise driver queues. 473 */ 474 ciss_initq_free(sc); 475 ciss_initq_notify(sc); 476 477 /* 478 * Initialize device sysctls. 479 */ 480 ciss_init_sysctl(sc); 481 482 /* 483 * Initialise command/request pool. 484 */ 485 if ((error = ciss_init_requests(sc)) != 0) 486 goto out; 487 488 /* 489 * Get adapter information. 490 */ 491 if ((error = ciss_identify_adapter(sc)) != 0) 492 goto out; 493 494 /* 495 * Find all the physical devices. 496 */ 497 if ((error = ciss_init_physical(sc)) != 0) 498 goto out; 499 500 /* 501 * Build our private table of logical devices. 502 */ 503 if ((error = ciss_init_logical(sc)) != 0) 504 goto out; 505 506 /* 507 * Enable interrupts so that the CAM scan can complete. 508 */ 509 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc); 510 511 /* 512 * Initialise the CAM interface. 513 */ 514 if ((error = ciss_cam_init(sc)) != 0) 515 goto out; 516 517 /* 518 * Start the heartbeat routine and event chain. 519 */ 520 ciss_periodic(sc); 521 522 /* 523 * Create the control device. 524 */ 525 sc->ciss_dev_t = make_dev(&ciss_cdevsw, device_get_unit(sc->ciss_dev), 526 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR, 527 "ciss%d", device_get_unit(sc->ciss_dev)); 528 sc->ciss_dev_t->si_drv1 = sc; 529 530 /* 531 * The adapter is running; synchronous commands can now sleep 532 * waiting for an interrupt to signal completion. 533 */ 534 sc->ciss_flags |= CISS_FLAG_RUNNING; 535 536 ciss_spawn_notify_thread(sc); 537 538 error = 0; 539 out: 540 if (error != 0) { 541 /* ciss_free() expects the mutex to be held */ 542 mtx_lock(&sc->ciss_mtx); 543 ciss_free(sc); 544 } 545 return(error); 546 } 547 548 /************************************************************************ 549 * Detach the driver from this adapter. 550 */ 551 static int 552 ciss_detach(device_t dev) 553 { 554 struct ciss_softc *sc = device_get_softc(dev); 555 556 debug_called(1); 557 558 mtx_lock(&sc->ciss_mtx); 559 if (sc->ciss_flags & CISS_FLAG_CONTROL_OPEN) { 560 mtx_unlock(&sc->ciss_mtx); 561 return (EBUSY); 562 } 563 564 /* flush adapter cache */ 565 ciss_flush_adapter(sc); 566 567 /* release all resources. The mutex is released and freed here too. */ 568 ciss_free(sc); 569 570 return(0); 571 } 572 573 /************************************************************************ 574 * Prepare adapter for system shutdown. 575 */ 576 static int 577 ciss_shutdown(device_t dev) 578 { 579 struct ciss_softc *sc = device_get_softc(dev); 580 581 debug_called(1); 582 583 mtx_lock(&sc->ciss_mtx); 584 /* flush adapter cache */ 585 ciss_flush_adapter(sc); 586 587 if (sc->ciss_soft_reset) 588 ciss_soft_reset(sc); 589 mtx_unlock(&sc->ciss_mtx); 590 591 return(0); 592 } 593 594 static void 595 ciss_init_sysctl(struct ciss_softc *sc) 596 { 597 598 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->ciss_dev), 599 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ciss_dev)), 600 OID_AUTO, "soft_reset", CTLFLAG_RW, &sc->ciss_soft_reset, 0, ""); 601 } 602 603 /************************************************************************ 604 * Perform PCI-specific attachment actions. 605 */ 606 static int 607 ciss_init_pci(struct ciss_softc *sc) 608 { 609 uintptr_t cbase, csize, cofs; 610 uint32_t method, supported_methods; 611 int error, sqmask, i; 612 void *intr; 613 614 debug_called(1); 615 616 /* 617 * Work out adapter type. 618 */ 619 i = ciss_lookup(sc->ciss_dev); 620 if (i < 0) { 621 ciss_printf(sc, "unknown adapter type\n"); 622 return (ENXIO); 623 } 624 625 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) { 626 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5; 627 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) { 628 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5B; 629 } else { 630 /* 631 * XXX Big hammer, masks/unmasks all possible interrupts. This should 632 * work on all hardware variants. Need to add code to handle the 633 * "controller crashed" interrupt bit that this unmasks. 634 */ 635 sqmask = ~0; 636 } 637 638 /* 639 * Allocate register window first (we need this to find the config 640 * struct). 641 */ 642 error = ENXIO; 643 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS; 644 if ((sc->ciss_regs_resource = 645 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 646 &sc->ciss_regs_rid, RF_ACTIVE)) == NULL) { 647 ciss_printf(sc, "can't allocate register window\n"); 648 return(ENXIO); 649 } 650 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource); 651 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource); 652 653 /* 654 * Find the BAR holding the config structure. If it's not the one 655 * we already mapped for registers, map it too. 656 */ 657 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff; 658 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) { 659 if ((sc->ciss_cfg_resource = 660 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 661 &sc->ciss_cfg_rid, RF_ACTIVE)) == NULL) { 662 ciss_printf(sc, "can't allocate config window\n"); 663 return(ENXIO); 664 } 665 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource); 666 csize = rman_get_end(sc->ciss_cfg_resource) - 667 rman_get_start(sc->ciss_cfg_resource) + 1; 668 } else { 669 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource); 670 csize = rman_get_end(sc->ciss_regs_resource) - 671 rman_get_start(sc->ciss_regs_resource) + 1; 672 } 673 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF); 674 675 /* 676 * Use the base/size/offset values we just calculated to 677 * sanity-check the config structure. If it's OK, point to it. 678 */ 679 if ((cofs + sizeof(struct ciss_config_table)) > csize) { 680 ciss_printf(sc, "config table outside window\n"); 681 return(ENXIO); 682 } 683 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs); 684 debug(1, "config struct at %p", sc->ciss_cfg); 685 686 /* 687 * Calculate the number of request structures/commands we are 688 * going to provide for this adapter. 689 */ 690 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands); 691 692 /* 693 * Validate the config structure. If we supported other transport 694 * methods, we could select amongst them at this point in time. 695 */ 696 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) { 697 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n", 698 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1], 699 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]); 700 return(ENXIO); 701 } 702 703 /* 704 * Select the mode of operation, prefer Performant. 705 */ 706 if (!(sc->ciss_cfg->supported_methods & 707 (CISS_TRANSPORT_METHOD_SIMPLE | CISS_TRANSPORT_METHOD_PERF))) { 708 ciss_printf(sc, "No supported transport layers: 0x%x\n", 709 sc->ciss_cfg->supported_methods); 710 } 711 712 switch (ciss_force_transport) { 713 case 1: 714 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE; 715 break; 716 case 2: 717 supported_methods = CISS_TRANSPORT_METHOD_PERF; 718 break; 719 default: 720 /* 721 * Override the capabilities of the BOARD and specify SIMPLE 722 * MODE 723 */ 724 if (ciss_vendor_data[i].flags & CISS_BOARD_SIMPLE) 725 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE; 726 else 727 supported_methods = sc->ciss_cfg->supported_methods; 728 break; 729 } 730 731 setup: 732 if ((supported_methods & CISS_TRANSPORT_METHOD_PERF) != 0) { 733 method = CISS_TRANSPORT_METHOD_PERF; 734 sc->ciss_perf = (struct ciss_perf_config *)(cbase + cofs + 735 sc->ciss_cfg->transport_offset); 736 if (ciss_init_perf(sc)) { 737 supported_methods &= ~method; 738 goto setup; 739 } 740 } else if (supported_methods & CISS_TRANSPORT_METHOD_SIMPLE) { 741 method = CISS_TRANSPORT_METHOD_SIMPLE; 742 } else { 743 ciss_printf(sc, "No supported transport methods: 0x%x\n", 744 sc->ciss_cfg->supported_methods); 745 return(ENXIO); 746 } 747 748 /* 749 * Tell it we're using the low 4GB of RAM. Set the default interrupt 750 * coalescing options. 751 */ 752 sc->ciss_cfg->requested_method = method; 753 sc->ciss_cfg->command_physlimit = 0; 754 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY; 755 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT; 756 757 #ifdef __i386__ 758 sc->ciss_cfg->host_driver |= CISS_DRIVER_SCSI_PREFETCH; 759 #endif 760 761 if (ciss_update_config(sc)) { 762 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n", 763 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR)); 764 return(ENXIO); 765 } 766 if ((sc->ciss_cfg->active_method & method) == 0) { 767 supported_methods &= ~method; 768 if (supported_methods == 0) { 769 ciss_printf(sc, "adapter refuses to go into available transports " 770 "mode (0x%x, 0x%x)\n", supported_methods, 771 sc->ciss_cfg->active_method); 772 return(ENXIO); 773 } else 774 goto setup; 775 } 776 777 /* 778 * Wait for the adapter to come ready. 779 */ 780 if ((error = ciss_wait_adapter(sc)) != 0) 781 return(error); 782 783 /* Prepare to possibly use MSIX and/or PERFORMANT interrupts. Normal 784 * interrupts have a rid of 0, this will be overridden if MSIX is used. 785 */ 786 sc->ciss_irq_rid[0] = 0; 787 if (method == CISS_TRANSPORT_METHOD_PERF) { 788 ciss_printf(sc, "PERFORMANT Transport\n"); 789 if ((ciss_force_interrupt != 1) && (ciss_setup_msix(sc) == 0)) { 790 intr = ciss_perf_msi_intr; 791 } else { 792 intr = ciss_perf_intr; 793 } 794 /* XXX The docs say that the 0x01 bit is only for SAS controllers. 795 * Unfortunately, there is no good way to know if this is a SAS 796 * controller. Hopefully enabling this bit universally will work OK. 797 * It seems to work fine for SA6i controllers. 798 */ 799 sc->ciss_interrupt_mask = CISS_TL_PERF_INTR_OPQ | CISS_TL_PERF_INTR_MSI; 800 801 } else { 802 ciss_printf(sc, "SIMPLE Transport\n"); 803 /* MSIX doesn't seem to work in SIMPLE mode, only enable if it forced */ 804 if (ciss_force_interrupt == 2) 805 /* If this fails, we automatically revert to INTx */ 806 ciss_setup_msix(sc); 807 sc->ciss_perf = NULL; 808 intr = ciss_intr; 809 sc->ciss_interrupt_mask = sqmask; 810 } 811 812 /* 813 * Turn off interrupts before we go routing anything. 814 */ 815 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 816 817 /* 818 * Allocate and set up our interrupt. 819 */ 820 if ((sc->ciss_irq_resource = 821 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid[0], 822 RF_ACTIVE | RF_SHAREABLE)) == NULL) { 823 ciss_printf(sc, "can't allocate interrupt\n"); 824 return(ENXIO); 825 } 826 827 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource, 828 INTR_TYPE_CAM|INTR_MPSAFE, NULL, intr, sc, 829 &sc->ciss_intr)) { 830 ciss_printf(sc, "can't set up interrupt\n"); 831 return(ENXIO); 832 } 833 834 /* 835 * Allocate the parent bus DMA tag appropriate for our PCI 836 * interface. 837 * 838 * Note that "simple" adapters can only address within a 32-bit 839 * span. 840 */ 841 if (bus_dma_tag_create(bus_get_dma_tag(sc->ciss_dev),/* PCI parent */ 842 1, 0, /* alignment, boundary */ 843 BUS_SPACE_MAXADDR, /* lowaddr */ 844 BUS_SPACE_MAXADDR, /* highaddr */ 845 NULL, NULL, /* filter, filterarg */ 846 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 847 BUS_SPACE_UNRESTRICTED, /* nsegments */ 848 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 849 0, /* flags */ 850 NULL, NULL, /* lockfunc, lockarg */ 851 &sc->ciss_parent_dmat)) { 852 ciss_printf(sc, "can't allocate parent DMA tag\n"); 853 return(ENOMEM); 854 } 855 856 /* 857 * Create DMA tag for mapping buffers into adapter-addressable 858 * space. 859 */ 860 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 861 1, 0, /* alignment, boundary */ 862 BUS_SPACE_MAXADDR, /* lowaddr */ 863 BUS_SPACE_MAXADDR, /* highaddr */ 864 NULL, NULL, /* filter, filterarg */ 865 (CISS_MAX_SG_ELEMENTS - 1) * PAGE_SIZE, /* maxsize */ 866 CISS_MAX_SG_ELEMENTS, /* nsegments */ 867 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 868 BUS_DMA_ALLOCNOW, /* flags */ 869 busdma_lock_mutex, &sc->ciss_mtx, /* lockfunc, lockarg */ 870 &sc->ciss_buffer_dmat)) { 871 ciss_printf(sc, "can't allocate buffer DMA tag\n"); 872 return(ENOMEM); 873 } 874 return(0); 875 } 876 877 /************************************************************************ 878 * Setup MSI/MSIX operation (Performant only) 879 * Four interrupts are available, but we only use 1 right now. If MSI-X 880 * isn't avaialble, try using MSI instead. 881 */ 882 static int 883 ciss_setup_msix(struct ciss_softc *sc) 884 { 885 int val, i; 886 887 /* Weed out devices that don't actually support MSI */ 888 i = ciss_lookup(sc->ciss_dev); 889 if (ciss_vendor_data[i].flags & CISS_BOARD_NOMSI) 890 return (EINVAL); 891 892 /* 893 * Only need to use the minimum number of MSI vectors, as the driver 894 * doesn't support directed MSIX interrupts. 895 */ 896 val = pci_msix_count(sc->ciss_dev); 897 if (val < CISS_MSI_COUNT) { 898 val = pci_msi_count(sc->ciss_dev); 899 device_printf(sc->ciss_dev, "got %d MSI messages]\n", val); 900 if (val < CISS_MSI_COUNT) 901 return (EINVAL); 902 } 903 val = MIN(val, CISS_MSI_COUNT); 904 if (pci_alloc_msix(sc->ciss_dev, &val) != 0) { 905 if (pci_alloc_msi(sc->ciss_dev, &val) != 0) 906 return (EINVAL); 907 } 908 909 sc->ciss_msi = val; 910 if (bootverbose) 911 ciss_printf(sc, "Using %d MSIX interrupt%s\n", val, 912 (val != 1) ? "s" : ""); 913 914 for (i = 0; i < val; i++) 915 sc->ciss_irq_rid[i] = i + 1; 916 917 return (0); 918 919 } 920 921 /************************************************************************ 922 * Setup the Performant structures. 923 */ 924 static int 925 ciss_init_perf(struct ciss_softc *sc) 926 { 927 struct ciss_perf_config *pc = sc->ciss_perf; 928 int reply_size; 929 930 /* 931 * Create the DMA tag for the reply queue. 932 */ 933 reply_size = sizeof(uint64_t) * sc->ciss_max_requests; 934 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 935 1, 0, /* alignment, boundary */ 936 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 937 BUS_SPACE_MAXADDR, /* highaddr */ 938 NULL, NULL, /* filter, filterarg */ 939 reply_size, 1, /* maxsize, nsegments */ 940 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 941 0, /* flags */ 942 NULL, NULL, /* lockfunc, lockarg */ 943 &sc->ciss_reply_dmat)) { 944 ciss_printf(sc, "can't allocate reply DMA tag\n"); 945 return(ENOMEM); 946 } 947 /* 948 * Allocate memory and make it available for DMA. 949 */ 950 if (bus_dmamem_alloc(sc->ciss_reply_dmat, (void **)&sc->ciss_reply, 951 BUS_DMA_NOWAIT, &sc->ciss_reply_map)) { 952 ciss_printf(sc, "can't allocate reply memory\n"); 953 return(ENOMEM); 954 } 955 bus_dmamap_load(sc->ciss_reply_dmat, sc->ciss_reply_map, sc->ciss_reply, 956 reply_size, ciss_command_map_helper, &sc->ciss_reply_phys, 0); 957 bzero(sc->ciss_reply, reply_size); 958 959 sc->ciss_cycle = 0x1; 960 sc->ciss_rqidx = 0; 961 962 /* 963 * Preload the fetch table with common command sizes. This allows the 964 * hardware to not waste bus cycles for typical i/o commands, but also not 965 * tax the driver to be too exact in choosing sizes. The table is optimized 966 * for page-aligned i/o's, but since most i/o comes from the various pagers, 967 * it's a reasonable assumption to make. 968 */ 969 pc->fetch_count[CISS_SG_FETCH_NONE] = (sizeof(struct ciss_command) + 15) / 16; 970 pc->fetch_count[CISS_SG_FETCH_1] = 971 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 1 + 15) / 16; 972 pc->fetch_count[CISS_SG_FETCH_2] = 973 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 2 + 15) / 16; 974 pc->fetch_count[CISS_SG_FETCH_4] = 975 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 4 + 15) / 16; 976 pc->fetch_count[CISS_SG_FETCH_8] = 977 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 8 + 15) / 16; 978 pc->fetch_count[CISS_SG_FETCH_16] = 979 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 16 + 15) / 16; 980 pc->fetch_count[CISS_SG_FETCH_32] = 981 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 32 + 15) / 16; 982 pc->fetch_count[CISS_SG_FETCH_MAX] = (CISS_COMMAND_ALLOC_SIZE + 15) / 16; 983 984 pc->rq_size = sc->ciss_max_requests; /* XXX less than the card supports? */ 985 pc->rq_count = 1; /* XXX Hardcode for a single queue */ 986 pc->rq_bank_hi = 0; 987 pc->rq_bank_lo = 0; 988 pc->rq[0].rq_addr_hi = 0x0; 989 pc->rq[0].rq_addr_lo = sc->ciss_reply_phys; 990 991 return(0); 992 } 993 994 /************************************************************************ 995 * Wait for the adapter to come ready. 996 */ 997 static int 998 ciss_wait_adapter(struct ciss_softc *sc) 999 { 1000 int i; 1001 1002 debug_called(1); 1003 1004 /* 1005 * Wait for the adapter to come ready. 1006 */ 1007 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) { 1008 ciss_printf(sc, "waiting for adapter to come ready...\n"); 1009 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) { 1010 DELAY(1000000); /* one second */ 1011 if (i > 30) { 1012 ciss_printf(sc, "timed out waiting for adapter to come ready\n"); 1013 return(EIO); 1014 } 1015 } 1016 } 1017 return(0); 1018 } 1019 1020 /************************************************************************ 1021 * Flush the adapter cache. 1022 */ 1023 static int 1024 ciss_flush_adapter(struct ciss_softc *sc) 1025 { 1026 struct ciss_request *cr; 1027 struct ciss_bmic_flush_cache *cbfc; 1028 int error, command_status; 1029 1030 debug_called(1); 1031 1032 cr = NULL; 1033 cbfc = NULL; 1034 1035 /* 1036 * Build a BMIC request to flush the cache. We don't disable 1037 * it, as we may be going to do more I/O (eg. we are emulating 1038 * the Synchronise Cache command). 1039 */ 1040 if ((cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 1041 error = ENOMEM; 1042 goto out; 1043 } 1044 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE, 1045 (void **)&cbfc, sizeof(*cbfc))) != 0) 1046 goto out; 1047 1048 /* 1049 * Submit the request and wait for it to complete. 1050 */ 1051 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1052 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error); 1053 goto out; 1054 } 1055 1056 /* 1057 * Check response. 1058 */ 1059 ciss_report_request(cr, &command_status, NULL); 1060 switch(command_status) { 1061 case CISS_CMD_STATUS_SUCCESS: 1062 break; 1063 default: 1064 ciss_printf(sc, "error flushing cache (%s)\n", 1065 ciss_name_command_status(command_status)); 1066 error = EIO; 1067 goto out; 1068 } 1069 1070 out: 1071 if (cbfc != NULL) 1072 free(cbfc, CISS_MALLOC_CLASS); 1073 if (cr != NULL) 1074 ciss_release_request(cr); 1075 return(error); 1076 } 1077 1078 static void 1079 ciss_soft_reset(struct ciss_softc *sc) 1080 { 1081 struct ciss_request *cr = NULL; 1082 struct ciss_command *cc; 1083 int i, error = 0; 1084 1085 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1086 /* only reset proxy controllers */ 1087 if (sc->ciss_controllers[i].physical.bus == 0) 1088 continue; 1089 1090 if ((error = ciss_get_request(sc, &cr)) != 0) 1091 break; 1092 1093 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_SOFT_RESET, 1094 NULL, 0)) != 0) 1095 break; 1096 1097 cc = cr->cr_cc; 1098 cc->header.address = sc->ciss_controllers[i]; 1099 1100 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) 1101 break; 1102 1103 ciss_release_request(cr); 1104 } 1105 1106 if (error) 1107 ciss_printf(sc, "error resetting controller (%d)\n", error); 1108 1109 if (cr != NULL) 1110 ciss_release_request(cr); 1111 } 1112 1113 /************************************************************************ 1114 * Allocate memory for the adapter command structures, initialise 1115 * the request structures. 1116 * 1117 * Note that the entire set of commands are allocated in a single 1118 * contiguous slab. 1119 */ 1120 static int 1121 ciss_init_requests(struct ciss_softc *sc) 1122 { 1123 struct ciss_request *cr; 1124 int i; 1125 1126 debug_called(1); 1127 1128 if (bootverbose) 1129 ciss_printf(sc, "using %d of %d available commands\n", 1130 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands); 1131 1132 /* 1133 * Create the DMA tag for commands. 1134 */ 1135 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 1136 32, 0, /* alignment, boundary */ 1137 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 1138 BUS_SPACE_MAXADDR, /* highaddr */ 1139 NULL, NULL, /* filter, filterarg */ 1140 CISS_COMMAND_ALLOC_SIZE * 1141 sc->ciss_max_requests, 1, /* maxsize, nsegments */ 1142 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 1143 0, /* flags */ 1144 NULL, NULL, /* lockfunc, lockarg */ 1145 &sc->ciss_command_dmat)) { 1146 ciss_printf(sc, "can't allocate command DMA tag\n"); 1147 return(ENOMEM); 1148 } 1149 /* 1150 * Allocate memory and make it available for DMA. 1151 */ 1152 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command, 1153 BUS_DMA_NOWAIT, &sc->ciss_command_map)) { 1154 ciss_printf(sc, "can't allocate command memory\n"); 1155 return(ENOMEM); 1156 } 1157 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map,sc->ciss_command, 1158 CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests, 1159 ciss_command_map_helper, &sc->ciss_command_phys, 0); 1160 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests); 1161 1162 /* 1163 * Set up the request and command structures, push requests onto 1164 * the free queue. 1165 */ 1166 for (i = 1; i < sc->ciss_max_requests; i++) { 1167 cr = &sc->ciss_request[i]; 1168 cr->cr_sc = sc; 1169 cr->cr_tag = i; 1170 cr->cr_cc = (struct ciss_command *)((uintptr_t)sc->ciss_command + 1171 CISS_COMMAND_ALLOC_SIZE * i); 1172 cr->cr_ccphys = sc->ciss_command_phys + CISS_COMMAND_ALLOC_SIZE * i; 1173 bus_dmamap_create(sc->ciss_buffer_dmat, 0, &cr->cr_datamap); 1174 ciss_enqueue_free(cr); 1175 } 1176 return(0); 1177 } 1178 1179 static void 1180 ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1181 { 1182 uint32_t *addr; 1183 1184 addr = arg; 1185 *addr = segs[0].ds_addr; 1186 } 1187 1188 /************************************************************************ 1189 * Identify the adapter, print some information about it. 1190 */ 1191 static int 1192 ciss_identify_adapter(struct ciss_softc *sc) 1193 { 1194 struct ciss_request *cr; 1195 int error, command_status; 1196 1197 debug_called(1); 1198 1199 cr = NULL; 1200 1201 /* 1202 * Get a request, allocate storage for the adapter data. 1203 */ 1204 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR, 1205 (void **)&sc->ciss_id, 1206 sizeof(*sc->ciss_id))) != 0) 1207 goto out; 1208 1209 /* 1210 * Submit the request and wait for it to complete. 1211 */ 1212 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1213 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error); 1214 goto out; 1215 } 1216 1217 /* 1218 * Check response. 1219 */ 1220 ciss_report_request(cr, &command_status, NULL); 1221 switch(command_status) { 1222 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1223 break; 1224 case CISS_CMD_STATUS_DATA_UNDERRUN: 1225 case CISS_CMD_STATUS_DATA_OVERRUN: 1226 ciss_printf(sc, "data over/underrun reading adapter information\n"); 1227 default: 1228 ciss_printf(sc, "error reading adapter information (%s)\n", 1229 ciss_name_command_status(command_status)); 1230 error = EIO; 1231 goto out; 1232 } 1233 1234 /* sanity-check reply */ 1235 if (!(sc->ciss_id->controller_flags & CONTROLLER_FLAGS_BIG_MAP_SUPPORT)) { 1236 ciss_printf(sc, "adapter does not support BIG_MAP\n"); 1237 error = ENXIO; 1238 goto out; 1239 } 1240 1241 #if 0 1242 /* XXX later revisions may not need this */ 1243 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH; 1244 #endif 1245 1246 /* XXX only really required for old 5300 adapters? */ 1247 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT; 1248 1249 /* 1250 * Earlier controller specs do not contain these config 1251 * entries, so assume that a 0 means its old and assign 1252 * these values to the defaults that were established 1253 * when this driver was developed for them 1254 */ 1255 if (sc->ciss_cfg->max_logical_supported == 0) 1256 sc->ciss_cfg->max_logical_supported = CISS_MAX_LOGICAL; 1257 if (sc->ciss_cfg->max_physical_supported == 0) 1258 sc->ciss_cfg->max_physical_supported = CISS_MAX_PHYSICAL; 1259 /* print information */ 1260 if (bootverbose) { 1261 ciss_printf(sc, " %d logical drive%s configured\n", 1262 sc->ciss_id->configured_logical_drives, 1263 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s"); 1264 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision); 1265 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_chip_count); 1266 1267 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature); 1268 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence); 1269 ciss_printf(sc, " supported I/O methods 0x%b\n", 1270 sc->ciss_cfg->supported_methods, 1271 "\20\1READY\2simple\3performant\4MEMQ\n"); 1272 ciss_printf(sc, " active I/O method 0x%b\n", 1273 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n"); 1274 ciss_printf(sc, " 4G page base 0x%08x\n", 1275 sc->ciss_cfg->command_physlimit); 1276 ciss_printf(sc, " interrupt coalesce delay %dus\n", 1277 sc->ciss_cfg->interrupt_coalesce_delay); 1278 ciss_printf(sc, " interrupt coalesce count %d\n", 1279 sc->ciss_cfg->interrupt_coalesce_count); 1280 ciss_printf(sc, " max outstanding commands %d\n", 1281 sc->ciss_cfg->max_outstanding_commands); 1282 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types, 1283 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n"); 1284 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name); 1285 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat); 1286 ciss_printf(sc, " max logical volumes: %d\n", sc->ciss_cfg->max_logical_supported); 1287 ciss_printf(sc, " max physical disks supported: %d\n", sc->ciss_cfg->max_physical_supported); 1288 ciss_printf(sc, " max physical disks per logical volume: %d\n", sc->ciss_cfg->max_physical_per_logical); 1289 ciss_printf(sc, " JBOD Support is %s\n", (sc->ciss_id->uiYetMoreControllerFlags & YMORE_CONTROLLER_FLAGS_JBOD_SUPPORTED) ? 1290 "Available" : "Unavailable"); 1291 ciss_printf(sc, " JBOD Mode is %s\n", (sc->ciss_id->PowerUPNvramFlags & PWR_UP_FLAG_JBOD_ENABLED) ? 1292 "Enabled" : "Disabled"); 1293 } 1294 1295 out: 1296 if (error) { 1297 if (sc->ciss_id != NULL) { 1298 free(sc->ciss_id, CISS_MALLOC_CLASS); 1299 sc->ciss_id = NULL; 1300 } 1301 } 1302 if (cr != NULL) 1303 ciss_release_request(cr); 1304 return(error); 1305 } 1306 1307 /************************************************************************ 1308 * Helper routine for generating a list of logical and physical luns. 1309 */ 1310 static struct ciss_lun_report * 1311 ciss_report_luns(struct ciss_softc *sc, int opcode, int nunits) 1312 { 1313 struct ciss_request *cr; 1314 struct ciss_command *cc; 1315 struct ciss_report_cdb *crc; 1316 struct ciss_lun_report *cll; 1317 int command_status; 1318 int report_size; 1319 int error = 0; 1320 1321 debug_called(1); 1322 1323 cr = NULL; 1324 cll = NULL; 1325 1326 /* 1327 * Get a request, allocate storage for the address list. 1328 */ 1329 if ((error = ciss_get_request(sc, &cr)) != 0) 1330 goto out; 1331 report_size = sizeof(*cll) + nunits * sizeof(union ciss_device_address); 1332 if ((cll = malloc(report_size, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 1333 ciss_printf(sc, "can't allocate memory for lun report\n"); 1334 error = ENOMEM; 1335 goto out; 1336 } 1337 1338 /* 1339 * Build the Report Logical/Physical LUNs command. 1340 */ 1341 cc = cr->cr_cc; 1342 cr->cr_data = cll; 1343 cr->cr_length = report_size; 1344 cr->cr_flags = CISS_REQ_DATAIN; 1345 1346 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 1347 cc->header.address.physical.bus = 0; 1348 cc->header.address.physical.target = 0; 1349 cc->cdb.cdb_length = sizeof(*crc); 1350 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1351 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1352 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1353 cc->cdb.timeout = 30; /* XXX better suggestions? */ 1354 1355 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]); 1356 bzero(crc, sizeof(*crc)); 1357 crc->opcode = opcode; 1358 crc->length = htonl(report_size); /* big-endian field */ 1359 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */ 1360 1361 /* 1362 * Submit the request and wait for it to complete. (timeout 1363 * here should be much greater than above) 1364 */ 1365 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1366 ciss_printf(sc, "error sending %d LUN command (%d)\n", opcode, error); 1367 goto out; 1368 } 1369 1370 /* 1371 * Check response. Note that data over/underrun is OK. 1372 */ 1373 ciss_report_request(cr, &command_status, NULL); 1374 switch(command_status) { 1375 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1376 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */ 1377 break; 1378 case CISS_CMD_STATUS_DATA_OVERRUN: 1379 ciss_printf(sc, "WARNING: more units than driver limit (%d)\n", 1380 sc->ciss_cfg->max_logical_supported); 1381 break; 1382 default: 1383 ciss_printf(sc, "error detecting logical drive configuration (%s)\n", 1384 ciss_name_command_status(command_status)); 1385 error = EIO; 1386 goto out; 1387 } 1388 ciss_release_request(cr); 1389 cr = NULL; 1390 1391 out: 1392 if (cr != NULL) 1393 ciss_release_request(cr); 1394 if (error && cll != NULL) { 1395 free(cll, CISS_MALLOC_CLASS); 1396 cll = NULL; 1397 } 1398 return(cll); 1399 } 1400 1401 /************************************************************************ 1402 * Find logical drives on the adapter. 1403 */ 1404 static int 1405 ciss_init_logical(struct ciss_softc *sc) 1406 { 1407 struct ciss_lun_report *cll; 1408 int error = 0, i, j; 1409 int ndrives; 1410 1411 debug_called(1); 1412 1413 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 1414 sc->ciss_cfg->max_logical_supported); 1415 if (cll == NULL) { 1416 error = ENXIO; 1417 goto out; 1418 } 1419 1420 /* sanity-check reply */ 1421 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1422 if ((ndrives < 0) || (ndrives > sc->ciss_cfg->max_logical_supported)) { 1423 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n", 1424 ndrives, sc->ciss_cfg->max_logical_supported); 1425 error = ENXIO; 1426 goto out; 1427 } 1428 1429 /* 1430 * Save logical drive information. 1431 */ 1432 if (bootverbose) { 1433 ciss_printf(sc, "%d logical drive%s\n", 1434 ndrives, (ndrives > 1 || ndrives == 0) ? "s" : ""); 1435 } 1436 1437 sc->ciss_logical = 1438 malloc(sc->ciss_max_logical_bus * sizeof(struct ciss_ldrive *), 1439 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1440 if (sc->ciss_logical == NULL) { 1441 error = ENXIO; 1442 goto out; 1443 } 1444 1445 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1446 sc->ciss_logical[i] = 1447 malloc(sc->ciss_cfg->max_logical_supported * 1448 sizeof(struct ciss_ldrive), 1449 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1450 if (sc->ciss_logical[i] == NULL) { 1451 error = ENXIO; 1452 goto out; 1453 } 1454 1455 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) 1456 sc->ciss_logical[i][j].cl_status = CISS_LD_NONEXISTENT; 1457 } 1458 1459 for (i = 0; i < sc->ciss_cfg->max_logical_supported; i++) { 1460 if (i < ndrives) { 1461 struct ciss_ldrive *ld; 1462 int bus, target; 1463 1464 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 1465 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 1466 ld = &sc->ciss_logical[bus][target]; 1467 1468 ld->cl_address = cll->lun[i]; 1469 ld->cl_controller = &sc->ciss_controllers[bus]; 1470 if (ciss_identify_logical(sc, ld) != 0) 1471 continue; 1472 /* 1473 * If the drive has had media exchanged, we should bring it online. 1474 */ 1475 if (ld->cl_lstatus->media_exchanged) 1476 ciss_accept_media(sc, ld); 1477 } 1478 } 1479 1480 out: 1481 if (cll != NULL) 1482 free(cll, CISS_MALLOC_CLASS); 1483 return(error); 1484 } 1485 1486 static int 1487 ciss_init_physical(struct ciss_softc *sc) 1488 { 1489 struct ciss_lun_report *cll; 1490 int error = 0, i; 1491 int nphys; 1492 int bus; 1493 1494 debug_called(1); 1495 1496 bus = 0; 1497 1498 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 1499 sc->ciss_cfg->max_physical_supported); 1500 if (cll == NULL) { 1501 error = ENXIO; 1502 goto out; 1503 } 1504 1505 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1506 1507 if (bootverbose) { 1508 ciss_printf(sc, "%d physical device%s\n", 1509 nphys, (nphys > 1 || nphys == 0) ? "s" : ""); 1510 } 1511 1512 /* 1513 * Figure out the bus mapping. 1514 * Logical buses include both the local logical bus for local arrays and 1515 * proxy buses for remote arrays. Physical buses are numbered by the 1516 * controller and represent physical buses that hold physical devices. 1517 * We shift these bus numbers so that everything fits into a single flat 1518 * numbering space for CAM. Logical buses occupy the first 32 CAM bus 1519 * numbers, and the physical bus numbers are shifted to be above that. 1520 * This results in the various driver arrays being indexed as follows: 1521 * 1522 * ciss_controllers[] - indexed by logical bus 1523 * ciss_cam_sim[] - indexed by both logical and physical, with physical 1524 * being shifted by 32. 1525 * ciss_logical[][] - indexed by logical bus 1526 * ciss_physical[][] - indexed by physical bus 1527 * 1528 * XXX This is getting more and more hackish. CISS really doesn't play 1529 * well with a standard SCSI model; devices are addressed via magic 1530 * cookies, not via b/t/l addresses. Since there is no way to store 1531 * the cookie in the CAM device object, we have to keep these lookup 1532 * tables handy so that the devices can be found quickly at the cost 1533 * of wasting memory and having a convoluted lookup scheme. This 1534 * driver should probably be converted to block interface. 1535 */ 1536 /* 1537 * If the L2 and L3 SCSI addresses are 0, this signifies a proxy 1538 * controller. A proxy controller is another physical controller 1539 * behind the primary PCI controller. We need to know about this 1540 * so that BMIC commands can be properly targeted. There can be 1541 * proxy controllers attached to a single PCI controller, so 1542 * find the highest numbered one so the array can be properly 1543 * sized. 1544 */ 1545 sc->ciss_max_logical_bus = 1; 1546 for (i = 0; i < nphys; i++) { 1547 if (cll->lun[i].physical.extra_address == 0) { 1548 bus = cll->lun[i].physical.bus; 1549 sc->ciss_max_logical_bus = max(sc->ciss_max_logical_bus, bus) + 1; 1550 } else { 1551 bus = CISS_EXTRA_BUS2(cll->lun[i].physical.extra_address); 1552 sc->ciss_max_physical_bus = max(sc->ciss_max_physical_bus, bus); 1553 } 1554 } 1555 1556 sc->ciss_controllers = 1557 malloc(sc->ciss_max_logical_bus * sizeof (union ciss_device_address), 1558 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1559 1560 if (sc->ciss_controllers == NULL) { 1561 ciss_printf(sc, "Could not allocate memory for controller map\n"); 1562 error = ENOMEM; 1563 goto out; 1564 } 1565 1566 /* setup a map of controller addresses */ 1567 for (i = 0; i < nphys; i++) { 1568 if (cll->lun[i].physical.extra_address == 0) { 1569 sc->ciss_controllers[cll->lun[i].physical.bus] = cll->lun[i]; 1570 } 1571 } 1572 1573 sc->ciss_physical = 1574 malloc(sc->ciss_max_physical_bus * sizeof(struct ciss_pdrive *), 1575 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1576 if (sc->ciss_physical == NULL) { 1577 ciss_printf(sc, "Could not allocate memory for physical device map\n"); 1578 error = ENOMEM; 1579 goto out; 1580 } 1581 1582 for (i = 0; i < sc->ciss_max_physical_bus; i++) { 1583 sc->ciss_physical[i] = 1584 malloc(sizeof(struct ciss_pdrive) * CISS_MAX_PHYSTGT, 1585 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1586 if (sc->ciss_physical[i] == NULL) { 1587 ciss_printf(sc, "Could not allocate memory for target map\n"); 1588 error = ENOMEM; 1589 goto out; 1590 } 1591 } 1592 1593 ciss_filter_physical(sc, cll); 1594 1595 out: 1596 if (cll != NULL) 1597 free(cll, CISS_MALLOC_CLASS); 1598 1599 return(error); 1600 } 1601 1602 static int 1603 ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll) 1604 { 1605 u_int32_t ea; 1606 int i, nphys; 1607 int bus, target; 1608 1609 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1610 for (i = 0; i < nphys; i++) { 1611 if (cll->lun[i].physical.extra_address == 0) 1612 continue; 1613 1614 /* 1615 * Filter out devices that we don't want. Level 3 LUNs could 1616 * probably be supported, but the docs don't give enough of a 1617 * hint to know how. 1618 * 1619 * The mode field of the physical address is likely set to have 1620 * hard disks masked out. Honor it unless the user has overridden 1621 * us with the tunable. We also munge the inquiry data for these 1622 * disks so that they only show up as passthrough devices. Keeping 1623 * them visible in this fashion is useful for doing things like 1624 * flashing firmware. 1625 */ 1626 ea = cll->lun[i].physical.extra_address; 1627 if ((CISS_EXTRA_BUS3(ea) != 0) || (CISS_EXTRA_TARGET3(ea) != 0) || 1628 (CISS_EXTRA_MODE2(ea) == 0x3)) 1629 continue; 1630 if ((ciss_expose_hidden_physical == 0) && 1631 (cll->lun[i].physical.mode == CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL)) 1632 continue; 1633 1634 /* 1635 * Note: CISS firmware numbers physical busses starting at '1', not 1636 * '0'. This numbering is internal to the firmware and is only 1637 * used as a hint here. 1638 */ 1639 bus = CISS_EXTRA_BUS2(ea) - 1; 1640 target = CISS_EXTRA_TARGET2(ea); 1641 sc->ciss_physical[bus][target].cp_address = cll->lun[i]; 1642 sc->ciss_physical[bus][target].cp_online = 1; 1643 } 1644 1645 return (0); 1646 } 1647 1648 static int 1649 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1650 { 1651 struct ciss_request *cr; 1652 struct ciss_command *cc; 1653 struct scsi_inquiry *inq; 1654 int error; 1655 int command_status; 1656 1657 cr = NULL; 1658 1659 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry)); 1660 1661 if ((error = ciss_get_request(sc, &cr)) != 0) 1662 goto out; 1663 1664 cc = cr->cr_cc; 1665 cr->cr_data = &ld->cl_geometry; 1666 cr->cr_length = sizeof(ld->cl_geometry); 1667 cr->cr_flags = CISS_REQ_DATAIN; 1668 1669 cc->header.address = ld->cl_address; 1670 cc->cdb.cdb_length = 6; 1671 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1672 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1673 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1674 cc->cdb.timeout = 30; 1675 1676 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]); 1677 inq->opcode = INQUIRY; 1678 inq->byte2 = SI_EVPD; 1679 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY; 1680 scsi_ulto2b(sizeof(ld->cl_geometry), inq->length); 1681 1682 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1683 ciss_printf(sc, "error getting geometry (%d)\n", error); 1684 goto out; 1685 } 1686 1687 ciss_report_request(cr, &command_status, NULL); 1688 switch(command_status) { 1689 case CISS_CMD_STATUS_SUCCESS: 1690 case CISS_CMD_STATUS_DATA_UNDERRUN: 1691 break; 1692 case CISS_CMD_STATUS_DATA_OVERRUN: 1693 ciss_printf(sc, "WARNING: Data overrun\n"); 1694 break; 1695 default: 1696 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n", 1697 ciss_name_command_status(command_status)); 1698 break; 1699 } 1700 1701 out: 1702 if (cr != NULL) 1703 ciss_release_request(cr); 1704 return(error); 1705 } 1706 /************************************************************************ 1707 * Identify a logical drive, initialise state related to it. 1708 */ 1709 static int 1710 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1711 { 1712 struct ciss_request *cr; 1713 struct ciss_command *cc; 1714 struct ciss_bmic_cdb *cbc; 1715 int error, command_status; 1716 1717 debug_called(1); 1718 1719 cr = NULL; 1720 1721 /* 1722 * Build a BMIC request to fetch the drive ID. 1723 */ 1724 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE, 1725 (void **)&ld->cl_ldrive, 1726 sizeof(*ld->cl_ldrive))) != 0) 1727 goto out; 1728 cc = cr->cr_cc; 1729 cc->header.address = *ld->cl_controller; /* target controller */ 1730 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1731 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1732 1733 /* 1734 * Submit the request and wait for it to complete. 1735 */ 1736 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1737 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error); 1738 goto out; 1739 } 1740 1741 /* 1742 * Check response. 1743 */ 1744 ciss_report_request(cr, &command_status, NULL); 1745 switch(command_status) { 1746 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1747 break; 1748 case CISS_CMD_STATUS_DATA_UNDERRUN: 1749 case CISS_CMD_STATUS_DATA_OVERRUN: 1750 ciss_printf(sc, "data over/underrun reading logical drive ID\n"); 1751 default: 1752 ciss_printf(sc, "error reading logical drive ID (%s)\n", 1753 ciss_name_command_status(command_status)); 1754 error = EIO; 1755 goto out; 1756 } 1757 ciss_release_request(cr); 1758 cr = NULL; 1759 1760 /* 1761 * Build a CISS BMIC command to get the logical drive status. 1762 */ 1763 if ((error = ciss_get_ldrive_status(sc, ld)) != 0) 1764 goto out; 1765 1766 /* 1767 * Get the logical drive geometry. 1768 */ 1769 if ((error = ciss_inquiry_logical(sc, ld)) != 0) 1770 goto out; 1771 1772 /* 1773 * Print the drive's basic characteristics. 1774 */ 1775 if (bootverbose) { 1776 ciss_printf(sc, "logical drive (b%dt%d): %s, %dMB ", 1777 CISS_LUN_TO_BUS(ld->cl_address.logical.lun), 1778 CISS_LUN_TO_TARGET(ld->cl_address.logical.lun), 1779 ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance), 1780 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) * 1781 ld->cl_ldrive->block_size)); 1782 1783 ciss_print_ldrive(sc, ld); 1784 } 1785 out: 1786 if (error != 0) { 1787 /* make the drive not-exist */ 1788 ld->cl_status = CISS_LD_NONEXISTENT; 1789 if (ld->cl_ldrive != NULL) { 1790 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 1791 ld->cl_ldrive = NULL; 1792 } 1793 if (ld->cl_lstatus != NULL) { 1794 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 1795 ld->cl_lstatus = NULL; 1796 } 1797 } 1798 if (cr != NULL) 1799 ciss_release_request(cr); 1800 1801 return(error); 1802 } 1803 1804 /************************************************************************ 1805 * Get status for a logical drive. 1806 * 1807 * XXX should we also do this in response to Test Unit Ready? 1808 */ 1809 static int 1810 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld) 1811 { 1812 struct ciss_request *cr; 1813 struct ciss_command *cc; 1814 struct ciss_bmic_cdb *cbc; 1815 int error, command_status; 1816 1817 /* 1818 * Build a CISS BMIC command to get the logical drive status. 1819 */ 1820 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS, 1821 (void **)&ld->cl_lstatus, 1822 sizeof(*ld->cl_lstatus))) != 0) 1823 goto out; 1824 cc = cr->cr_cc; 1825 cc->header.address = *ld->cl_controller; /* target controller */ 1826 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1827 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1828 1829 /* 1830 * Submit the request and wait for it to complete. 1831 */ 1832 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1833 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1834 goto out; 1835 } 1836 1837 /* 1838 * Check response. 1839 */ 1840 ciss_report_request(cr, &command_status, NULL); 1841 switch(command_status) { 1842 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1843 break; 1844 case CISS_CMD_STATUS_DATA_UNDERRUN: 1845 case CISS_CMD_STATUS_DATA_OVERRUN: 1846 ciss_printf(sc, "data over/underrun reading logical drive status\n"); 1847 default: 1848 ciss_printf(sc, "error reading logical drive status (%s)\n", 1849 ciss_name_command_status(command_status)); 1850 error = EIO; 1851 goto out; 1852 } 1853 1854 /* 1855 * Set the drive's summary status based on the returned status. 1856 * 1857 * XXX testing shows that a failed JBOD drive comes back at next 1858 * boot in "queued for expansion" mode. WTF? 1859 */ 1860 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status); 1861 1862 out: 1863 if (cr != NULL) 1864 ciss_release_request(cr); 1865 return(error); 1866 } 1867 1868 /************************************************************************ 1869 * Notify the adapter of a config update. 1870 */ 1871 static int 1872 ciss_update_config(struct ciss_softc *sc) 1873 { 1874 int i; 1875 1876 debug_called(1); 1877 1878 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE); 1879 for (i = 0; i < 1000; i++) { 1880 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) & 1881 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) { 1882 return(0); 1883 } 1884 DELAY(1000); 1885 } 1886 return(1); 1887 } 1888 1889 /************************************************************************ 1890 * Accept new media into a logical drive. 1891 * 1892 * XXX The drive has previously been offline; it would be good if we 1893 * could make sure it's not open right now. 1894 */ 1895 static int 1896 ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld) 1897 { 1898 struct ciss_request *cr; 1899 struct ciss_command *cc; 1900 struct ciss_bmic_cdb *cbc; 1901 int command_status; 1902 int error = 0, ldrive; 1903 1904 ldrive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1905 1906 debug(0, "bringing logical drive %d back online", ldrive); 1907 1908 /* 1909 * Build a CISS BMIC command to bring the drive back online. 1910 */ 1911 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA, 1912 NULL, 0)) != 0) 1913 goto out; 1914 cc = cr->cr_cc; 1915 cc->header.address = *ld->cl_controller; /* target controller */ 1916 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1917 cbc->log_drive = ldrive; 1918 1919 /* 1920 * Submit the request and wait for it to complete. 1921 */ 1922 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1923 ciss_printf(sc, "error sending BMIC ACCEPT MEDIA command (%d)\n", error); 1924 goto out; 1925 } 1926 1927 /* 1928 * Check response. 1929 */ 1930 ciss_report_request(cr, &command_status, NULL); 1931 switch(command_status) { 1932 case CISS_CMD_STATUS_SUCCESS: /* all OK */ 1933 /* we should get a logical drive status changed event here */ 1934 break; 1935 default: 1936 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n", 1937 ciss_name_command_status(command_status)); 1938 break; 1939 } 1940 1941 out: 1942 if (cr != NULL) 1943 ciss_release_request(cr); 1944 return(error); 1945 } 1946 1947 /************************************************************************ 1948 * Release adapter resources. 1949 */ 1950 static void 1951 ciss_free(struct ciss_softc *sc) 1952 { 1953 struct ciss_request *cr; 1954 int i, j; 1955 1956 debug_called(1); 1957 1958 /* we're going away */ 1959 sc->ciss_flags |= CISS_FLAG_ABORTING; 1960 1961 /* terminate the periodic heartbeat routine */ 1962 callout_stop(&sc->ciss_periodic); 1963 1964 /* cancel the Event Notify chain */ 1965 ciss_notify_abort(sc); 1966 1967 ciss_kill_notify_thread(sc); 1968 1969 /* disconnect from CAM */ 1970 if (sc->ciss_cam_sim) { 1971 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1972 if (sc->ciss_cam_sim[i]) { 1973 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1974 cam_sim_free(sc->ciss_cam_sim[i], 0); 1975 } 1976 } 1977 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 1978 CISS_PHYSICAL_BASE; i++) { 1979 if (sc->ciss_cam_sim[i]) { 1980 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1981 cam_sim_free(sc->ciss_cam_sim[i], 0); 1982 } 1983 } 1984 free(sc->ciss_cam_sim, CISS_MALLOC_CLASS); 1985 } 1986 if (sc->ciss_cam_devq) 1987 cam_simq_free(sc->ciss_cam_devq); 1988 1989 /* remove the control device */ 1990 mtx_unlock(&sc->ciss_mtx); 1991 if (sc->ciss_dev_t != NULL) 1992 destroy_dev(sc->ciss_dev_t); 1993 1994 /* Final cleanup of the callout. */ 1995 callout_drain(&sc->ciss_periodic); 1996 mtx_destroy(&sc->ciss_mtx); 1997 1998 /* free the controller data */ 1999 if (sc->ciss_id != NULL) 2000 free(sc->ciss_id, CISS_MALLOC_CLASS); 2001 2002 /* release I/O resources */ 2003 if (sc->ciss_regs_resource != NULL) 2004 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 2005 sc->ciss_regs_rid, sc->ciss_regs_resource); 2006 if (sc->ciss_cfg_resource != NULL) 2007 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 2008 sc->ciss_cfg_rid, sc->ciss_cfg_resource); 2009 if (sc->ciss_intr != NULL) 2010 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr); 2011 if (sc->ciss_irq_resource != NULL) 2012 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ, 2013 sc->ciss_irq_rid[0], sc->ciss_irq_resource); 2014 if (sc->ciss_msi) 2015 pci_release_msi(sc->ciss_dev); 2016 2017 while ((cr = ciss_dequeue_free(sc)) != NULL) 2018 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap); 2019 if (sc->ciss_buffer_dmat) 2020 bus_dma_tag_destroy(sc->ciss_buffer_dmat); 2021 2022 /* destroy command memory and DMA tag */ 2023 if (sc->ciss_command != NULL) { 2024 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map); 2025 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map); 2026 } 2027 if (sc->ciss_command_dmat) 2028 bus_dma_tag_destroy(sc->ciss_command_dmat); 2029 2030 if (sc->ciss_reply) { 2031 bus_dmamap_unload(sc->ciss_reply_dmat, sc->ciss_reply_map); 2032 bus_dmamem_free(sc->ciss_reply_dmat, sc->ciss_reply, sc->ciss_reply_map); 2033 } 2034 if (sc->ciss_reply_dmat) 2035 bus_dma_tag_destroy(sc->ciss_reply_dmat); 2036 2037 /* destroy DMA tags */ 2038 if (sc->ciss_parent_dmat) 2039 bus_dma_tag_destroy(sc->ciss_parent_dmat); 2040 if (sc->ciss_logical) { 2041 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 2042 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) { 2043 if (sc->ciss_logical[i][j].cl_ldrive) 2044 free(sc->ciss_logical[i][j].cl_ldrive, CISS_MALLOC_CLASS); 2045 if (sc->ciss_logical[i][j].cl_lstatus) 2046 free(sc->ciss_logical[i][j].cl_lstatus, CISS_MALLOC_CLASS); 2047 } 2048 free(sc->ciss_logical[i], CISS_MALLOC_CLASS); 2049 } 2050 free(sc->ciss_logical, CISS_MALLOC_CLASS); 2051 } 2052 2053 if (sc->ciss_physical) { 2054 for (i = 0; i < sc->ciss_max_physical_bus; i++) 2055 free(sc->ciss_physical[i], CISS_MALLOC_CLASS); 2056 free(sc->ciss_physical, CISS_MALLOC_CLASS); 2057 } 2058 2059 if (sc->ciss_controllers) 2060 free(sc->ciss_controllers, CISS_MALLOC_CLASS); 2061 2062 } 2063 2064 /************************************************************************ 2065 * Give a command to the adapter. 2066 * 2067 * Note that this uses the simple transport layer directly. If we 2068 * want to add support for other layers, we'll need a switch of some 2069 * sort. 2070 * 2071 * Note that the simple transport layer has no way of refusing a 2072 * command; we only have as many request structures as the adapter 2073 * supports commands, so we don't have to check (this presumes that 2074 * the adapter can handle commands as fast as we throw them at it). 2075 */ 2076 static int 2077 ciss_start(struct ciss_request *cr) 2078 { 2079 int error; 2080 2081 debug(2, "post command %d tag %d ", cr->cr_tag, cr->cr_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 tag = CISS_TL_SIMPLE_FETCH_CMD(sc); 2125 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY) 2126 break; 2127 index = tag >> 2; 2128 debug(2, "completed command %d%s", index, 2129 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2130 if (index >= sc->ciss_max_requests) { 2131 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2132 continue; 2133 } 2134 cr = &(sc->ciss_request[index]); 2135 cc = cr->cr_cc; 2136 cc->header.host_tag = tag; /* not updated by adapter */ 2137 ciss_enqueue_complete(cr, qh); 2138 } 2139 2140 } 2141 2142 static void 2143 ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh) 2144 { 2145 struct ciss_request *cr; 2146 struct ciss_command *cc; 2147 u_int32_t tag, index; 2148 2149 debug_called(3); 2150 2151 /* 2152 * Loop quickly taking requests from the adapter and moving them 2153 * to the completed queue. 2154 */ 2155 for (;;) { 2156 tag = sc->ciss_reply[sc->ciss_rqidx]; 2157 if ((tag & CISS_CYCLE_MASK) != sc->ciss_cycle) 2158 break; 2159 index = tag >> 2; 2160 debug(2, "completed command %d%s\n", index, 2161 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2162 if (index < sc->ciss_max_requests) { 2163 cr = &(sc->ciss_request[index]); 2164 cc = cr->cr_cc; 2165 cc->header.host_tag = tag; /* not updated by adapter */ 2166 ciss_enqueue_complete(cr, qh); 2167 } else { 2168 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2169 } 2170 if (++sc->ciss_rqidx == sc->ciss_max_requests) { 2171 sc->ciss_rqidx = 0; 2172 sc->ciss_cycle ^= 1; 2173 } 2174 } 2175 2176 } 2177 2178 /************************************************************************ 2179 * Take an interrupt from the adapter. 2180 */ 2181 static void 2182 ciss_intr(void *arg) 2183 { 2184 cr_qhead_t qh; 2185 struct ciss_softc *sc = (struct ciss_softc *)arg; 2186 2187 /* 2188 * The only interrupt we recognise indicates that there are 2189 * entries in the outbound post queue. 2190 */ 2191 STAILQ_INIT(&qh); 2192 ciss_done(sc, &qh); 2193 mtx_lock(&sc->ciss_mtx); 2194 ciss_complete(sc, &qh); 2195 mtx_unlock(&sc->ciss_mtx); 2196 } 2197 2198 static void 2199 ciss_perf_intr(void *arg) 2200 { 2201 struct ciss_softc *sc = (struct ciss_softc *)arg; 2202 2203 /* Clear the interrupt and flush the bridges. Docs say that the flush 2204 * needs to be done twice, which doesn't seem right. 2205 */ 2206 CISS_TL_PERF_CLEAR_INT(sc); 2207 CISS_TL_PERF_FLUSH_INT(sc); 2208 2209 ciss_perf_msi_intr(sc); 2210 } 2211 2212 static void 2213 ciss_perf_msi_intr(void *arg) 2214 { 2215 cr_qhead_t qh; 2216 struct ciss_softc *sc = (struct ciss_softc *)arg; 2217 2218 STAILQ_INIT(&qh); 2219 ciss_perf_done(sc, &qh); 2220 mtx_lock(&sc->ciss_mtx); 2221 ciss_complete(sc, &qh); 2222 mtx_unlock(&sc->ciss_mtx); 2223 } 2224 2225 /************************************************************************ 2226 * Process completed requests. 2227 * 2228 * Requests can be completed in three fashions: 2229 * 2230 * - by invoking a callback function (cr_complete is non-null) 2231 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set) 2232 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context 2233 */ 2234 static void 2235 ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh) 2236 { 2237 struct ciss_request *cr; 2238 2239 debug_called(2); 2240 2241 /* 2242 * Loop taking requests off the completed queue and performing 2243 * completion processing on them. 2244 */ 2245 for (;;) { 2246 if ((cr = ciss_dequeue_complete(sc, qh)) == NULL) 2247 break; 2248 ciss_unmap_request(cr); 2249 2250 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 2251 ciss_printf(sc, "WARNING: completing non-busy request\n"); 2252 cr->cr_flags &= ~CISS_REQ_BUSY; 2253 2254 /* 2255 * If the request has a callback, invoke it. 2256 */ 2257 if (cr->cr_complete != NULL) { 2258 cr->cr_complete(cr); 2259 continue; 2260 } 2261 2262 /* 2263 * If someone is sleeping on this request, wake them up. 2264 */ 2265 if (cr->cr_flags & CISS_REQ_SLEEP) { 2266 cr->cr_flags &= ~CISS_REQ_SLEEP; 2267 wakeup(cr); 2268 continue; 2269 } 2270 2271 /* 2272 * If someone is polling this request for completion, signal. 2273 */ 2274 if (cr->cr_flags & CISS_REQ_POLL) { 2275 cr->cr_flags &= ~CISS_REQ_POLL; 2276 continue; 2277 } 2278 2279 /* 2280 * Give up and throw the request back on the free queue. This 2281 * should never happen; resources will probably be lost. 2282 */ 2283 ciss_printf(sc, "WARNING: completed command with no submitter\n"); 2284 ciss_enqueue_free(cr); 2285 } 2286 } 2287 2288 /************************************************************************ 2289 * Report on the completion status of a request, and pass back SCSI 2290 * and command status values. 2291 */ 2292 static int 2293 _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func) 2294 { 2295 struct ciss_command *cc; 2296 struct ciss_error_info *ce; 2297 2298 debug_called(2); 2299 2300 cc = cr->cr_cc; 2301 ce = (struct ciss_error_info *)&(cc->sg[0]); 2302 2303 /* 2304 * We don't consider data under/overrun an error for the Report 2305 * Logical/Physical LUNs commands. 2306 */ 2307 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) && 2308 ((ce->command_status == CISS_CMD_STATUS_DATA_OVERRUN) || 2309 (ce->command_status == CISS_CMD_STATUS_DATA_UNDERRUN)) && 2310 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) || 2311 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS) || 2312 (cc->cdb.cdb[0] == INQUIRY))) { 2313 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR; 2314 debug(2, "ignoring irrelevant under/overrun error"); 2315 } 2316 2317 /* 2318 * Check the command's error bit, if clear, there's no status and 2319 * everything is OK. 2320 */ 2321 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) { 2322 if (scsi_status != NULL) 2323 *scsi_status = SCSI_STATUS_OK; 2324 if (command_status != NULL) 2325 *command_status = CISS_CMD_STATUS_SUCCESS; 2326 return(0); 2327 } else { 2328 if (command_status != NULL) 2329 *command_status = ce->command_status; 2330 if (scsi_status != NULL) { 2331 if (ce->command_status == CISS_CMD_STATUS_DATA_UNDERRUN) { 2332 *scsi_status = SCSI_STATUS_OK; 2333 } else 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 && ce->command_status != CISS_CMD_STATUS_DATA_UNDERRUN) 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 * Fetch and initialise a request 2481 */ 2482 static int 2483 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp) 2484 { 2485 struct ciss_request *cr; 2486 2487 debug_called(2); 2488 2489 /* 2490 * Get a request and clean it up. 2491 */ 2492 if ((cr = ciss_dequeue_free(sc)) == NULL) 2493 return(ENOMEM); 2494 2495 cr->cr_data = NULL; 2496 cr->cr_flags = 0; 2497 cr->cr_complete = NULL; 2498 cr->cr_private = NULL; 2499 cr->cr_sg_tag = CISS_SG_MAX; /* Backstop to prevent accidents */ 2500 2501 ciss_preen_command(cr); 2502 *crp = cr; 2503 return(0); 2504 } 2505 2506 static void 2507 ciss_preen_command(struct ciss_request *cr) 2508 { 2509 struct ciss_command *cc; 2510 u_int32_t cmdphys; 2511 2512 /* 2513 * Clean up the command structure. 2514 * 2515 * Note that we set up the error_info structure here, since the 2516 * length can be overwritten by any command. 2517 */ 2518 cc = cr->cr_cc; 2519 cc->header.sg_in_list = 0; /* kinda inefficient this way */ 2520 cc->header.sg_total = 0; 2521 cc->header.host_tag = cr->cr_tag << 2; 2522 cc->header.host_tag_zeroes = 0; 2523 bzero(&(cc->sg[0]), CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command)); 2524 cmdphys = cr->cr_ccphys; 2525 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command); 2526 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command); 2527 } 2528 2529 /************************************************************************ 2530 * Release a request to the free list. 2531 */ 2532 static void 2533 ciss_release_request(struct ciss_request *cr) 2534 { 2535 2536 debug_called(2); 2537 2538 /* release the request to the free queue */ 2539 ciss_requeue_free(cr); 2540 } 2541 2542 /************************************************************************ 2543 * Allocate a request that will be used to send a BMIC command. Do some 2544 * of the common setup here to avoid duplicating it everywhere else. 2545 */ 2546 static int 2547 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 2548 int opcode, void **bufp, size_t bufsize) 2549 { 2550 struct ciss_request *cr; 2551 struct ciss_command *cc; 2552 struct ciss_bmic_cdb *cbc; 2553 void *buf; 2554 int error; 2555 int dataout; 2556 2557 debug_called(2); 2558 2559 cr = NULL; 2560 buf = NULL; 2561 2562 /* 2563 * Get a request. 2564 */ 2565 if ((error = ciss_get_request(sc, &cr)) != 0) 2566 goto out; 2567 2568 /* 2569 * Allocate data storage if requested, determine the data direction. 2570 */ 2571 dataout = 0; 2572 if ((bufsize > 0) && (bufp != NULL)) { 2573 if (*bufp == NULL) { 2574 if ((buf = malloc(bufsize, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 2575 error = ENOMEM; 2576 goto out; 2577 } 2578 } else { 2579 buf = *bufp; 2580 dataout = 1; /* we are given a buffer, so we are writing */ 2581 } 2582 } 2583 2584 /* 2585 * Build a CISS BMIC command to get the logical drive ID. 2586 */ 2587 cr->cr_data = buf; 2588 cr->cr_length = bufsize; 2589 if (!dataout) 2590 cr->cr_flags = CISS_REQ_DATAIN; 2591 2592 cc = cr->cr_cc; 2593 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2594 cc->header.address.physical.bus = 0; 2595 cc->header.address.physical.target = 0; 2596 cc->cdb.cdb_length = sizeof(*cbc); 2597 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2598 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2599 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ; 2600 cc->cdb.timeout = 0; 2601 2602 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 2603 bzero(cbc, sizeof(*cbc)); 2604 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ; 2605 cbc->bmic_opcode = opcode; 2606 cbc->size = htons((u_int16_t)bufsize); 2607 2608 out: 2609 if (error) { 2610 if (cr != NULL) 2611 ciss_release_request(cr); 2612 } else { 2613 *crp = cr; 2614 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 2615 *bufp = buf; 2616 } 2617 return(error); 2618 } 2619 2620 /************************************************************************ 2621 * Handle a command passed in from userspace. 2622 */ 2623 static int 2624 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc) 2625 { 2626 struct ciss_request *cr; 2627 struct ciss_command *cc; 2628 struct ciss_error_info *ce; 2629 int error = 0; 2630 2631 debug_called(1); 2632 2633 cr = NULL; 2634 2635 /* 2636 * Get a request. 2637 */ 2638 while (ciss_get_request(sc, &cr) != 0) 2639 msleep(sc, &sc->ciss_mtx, PPAUSE, "cissREQ", hz); 2640 cc = cr->cr_cc; 2641 2642 /* 2643 * Allocate an in-kernel databuffer if required, copy in user data. 2644 */ 2645 mtx_unlock(&sc->ciss_mtx); 2646 cr->cr_length = ioc->buf_size; 2647 if (ioc->buf_size > 0) { 2648 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 2649 error = ENOMEM; 2650 goto out_unlocked; 2651 } 2652 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) { 2653 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2654 goto out_unlocked; 2655 } 2656 } 2657 2658 /* 2659 * Build the request based on the user command. 2660 */ 2661 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address)); 2662 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb)); 2663 2664 /* XXX anything else to populate here? */ 2665 mtx_lock(&sc->ciss_mtx); 2666 2667 /* 2668 * Run the command. 2669 */ 2670 if ((error = ciss_synch_request(cr, 60 * 1000))) { 2671 debug(0, "request failed - %d", error); 2672 goto out; 2673 } 2674 2675 /* 2676 * Check to see if the command succeeded. 2677 */ 2678 ce = (struct ciss_error_info *)&(cc->sg[0]); 2679 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) == 0) 2680 bzero(ce, sizeof(*ce)); 2681 2682 /* 2683 * Copy the results back to the user. 2684 */ 2685 bcopy(ce, &ioc->error_info, sizeof(*ce)); 2686 mtx_unlock(&sc->ciss_mtx); 2687 if ((ioc->buf_size > 0) && 2688 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) { 2689 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2690 goto out_unlocked; 2691 } 2692 2693 /* done OK */ 2694 error = 0; 2695 2696 out_unlocked: 2697 mtx_lock(&sc->ciss_mtx); 2698 2699 out: 2700 if ((cr != NULL) && (cr->cr_data != NULL)) 2701 free(cr->cr_data, CISS_MALLOC_CLASS); 2702 if (cr != NULL) 2703 ciss_release_request(cr); 2704 return(error); 2705 } 2706 2707 /************************************************************************ 2708 * Map a request into bus-visible space, initialise the scatter/gather 2709 * list. 2710 */ 2711 static int 2712 ciss_map_request(struct ciss_request *cr) 2713 { 2714 struct ciss_softc *sc; 2715 int error = 0; 2716 2717 debug_called(2); 2718 2719 sc = cr->cr_sc; 2720 2721 /* check that mapping is necessary */ 2722 if (cr->cr_flags & CISS_REQ_MAPPED) 2723 return(0); 2724 2725 cr->cr_flags |= CISS_REQ_MAPPED; 2726 2727 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2728 BUS_DMASYNC_PREWRITE); 2729 2730 if (cr->cr_data != NULL) { 2731 if (cr->cr_flags & CISS_REQ_CCB) 2732 error = bus_dmamap_load_ccb(sc->ciss_buffer_dmat, 2733 cr->cr_datamap, cr->cr_data, 2734 ciss_request_map_helper, cr, 0); 2735 else 2736 error = bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, 2737 cr->cr_data, cr->cr_length, 2738 ciss_request_map_helper, cr, 0); 2739 if (error != 0) 2740 return (error); 2741 } else { 2742 /* 2743 * Post the command to the adapter. 2744 */ 2745 cr->cr_sg_tag = CISS_SG_NONE; 2746 cr->cr_flags |= CISS_REQ_BUSY; 2747 if (sc->ciss_perf) 2748 CISS_TL_PERF_POST_CMD(sc, cr); 2749 else 2750 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys); 2751 } 2752 2753 return(0); 2754 } 2755 2756 static void 2757 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2758 { 2759 struct ciss_command *cc; 2760 struct ciss_request *cr; 2761 struct ciss_softc *sc; 2762 int i; 2763 2764 debug_called(2); 2765 2766 cr = (struct ciss_request *)arg; 2767 sc = cr->cr_sc; 2768 cc = cr->cr_cc; 2769 2770 for (i = 0; i < nseg; i++) { 2771 cc->sg[i].address = segs[i].ds_addr; 2772 cc->sg[i].length = segs[i].ds_len; 2773 cc->sg[i].extension = 0; 2774 } 2775 /* we leave the s/g table entirely within the command */ 2776 cc->header.sg_in_list = nseg; 2777 cc->header.sg_total = nseg; 2778 2779 if (cr->cr_flags & CISS_REQ_DATAIN) 2780 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD); 2781 if (cr->cr_flags & CISS_REQ_DATAOUT) 2782 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE); 2783 2784 if (nseg == 0) 2785 cr->cr_sg_tag = CISS_SG_NONE; 2786 else if (nseg == 1) 2787 cr->cr_sg_tag = CISS_SG_1; 2788 else if (nseg == 2) 2789 cr->cr_sg_tag = CISS_SG_2; 2790 else if (nseg <= 4) 2791 cr->cr_sg_tag = CISS_SG_4; 2792 else if (nseg <= 8) 2793 cr->cr_sg_tag = CISS_SG_8; 2794 else if (nseg <= 16) 2795 cr->cr_sg_tag = CISS_SG_16; 2796 else if (nseg <= 32) 2797 cr->cr_sg_tag = CISS_SG_32; 2798 else 2799 cr->cr_sg_tag = CISS_SG_MAX; 2800 2801 /* 2802 * Post the command to the adapter. 2803 */ 2804 cr->cr_flags |= CISS_REQ_BUSY; 2805 if (sc->ciss_perf) 2806 CISS_TL_PERF_POST_CMD(sc, cr); 2807 else 2808 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys); 2809 } 2810 2811 /************************************************************************ 2812 * Unmap a request from bus-visible space. 2813 */ 2814 static void 2815 ciss_unmap_request(struct ciss_request *cr) 2816 { 2817 struct ciss_softc *sc; 2818 2819 debug_called(2); 2820 2821 sc = cr->cr_sc; 2822 2823 /* check that unmapping is necessary */ 2824 if ((cr->cr_flags & CISS_REQ_MAPPED) == 0) 2825 return; 2826 2827 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2828 BUS_DMASYNC_POSTWRITE); 2829 2830 if (cr->cr_data == NULL) 2831 goto out; 2832 2833 if (cr->cr_flags & CISS_REQ_DATAIN) 2834 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD); 2835 if (cr->cr_flags & CISS_REQ_DATAOUT) 2836 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE); 2837 2838 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap); 2839 out: 2840 cr->cr_flags &= ~CISS_REQ_MAPPED; 2841 } 2842 2843 /************************************************************************ 2844 * Attach the driver to CAM. 2845 * 2846 * We put all the logical drives on a single SCSI bus. 2847 */ 2848 static int 2849 ciss_cam_init(struct ciss_softc *sc) 2850 { 2851 int i, maxbus; 2852 2853 debug_called(1); 2854 2855 /* 2856 * Allocate a devq. We can reuse this for the masked physical 2857 * devices if we decide to export these as well. 2858 */ 2859 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests - 2)) == NULL) { 2860 ciss_printf(sc, "can't allocate CAM SIM queue\n"); 2861 return(ENOMEM); 2862 } 2863 2864 /* 2865 * Create a SIM. 2866 * 2867 * This naturally wastes a bit of memory. The alternative is to allocate 2868 * and register each bus as it is found, and then track them on a linked 2869 * list. Unfortunately, the driver has a few places where it needs to 2870 * look up the SIM based solely on bus number, and it's unclear whether 2871 * a list traversal would work for these situations. 2872 */ 2873 maxbus = max(sc->ciss_max_logical_bus, sc->ciss_max_physical_bus + 2874 CISS_PHYSICAL_BASE); 2875 sc->ciss_cam_sim = malloc(maxbus * sizeof(struct cam_sim*), 2876 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 2877 if (sc->ciss_cam_sim == NULL) { 2878 ciss_printf(sc, "can't allocate memory for controller SIM\n"); 2879 return(ENOMEM); 2880 } 2881 2882 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 2883 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2884 "ciss", sc, 2885 device_get_unit(sc->ciss_dev), 2886 &sc->ciss_mtx, 2887 2, 2888 sc->ciss_max_requests - 2, 2889 sc->ciss_cam_devq)) == NULL) { 2890 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2891 return(ENOMEM); 2892 } 2893 2894 /* 2895 * Register bus with this SIM. 2896 */ 2897 mtx_lock(&sc->ciss_mtx); 2898 if (i == 0 || sc->ciss_controllers[i].physical.bus != 0) { 2899 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) { 2900 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2901 mtx_unlock(&sc->ciss_mtx); 2902 return (ENXIO); 2903 } 2904 } 2905 mtx_unlock(&sc->ciss_mtx); 2906 } 2907 2908 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2909 CISS_PHYSICAL_BASE; i++) { 2910 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2911 "ciss", sc, 2912 device_get_unit(sc->ciss_dev), 2913 &sc->ciss_mtx, 1, 2914 sc->ciss_max_requests - 2, 2915 sc->ciss_cam_devq)) == NULL) { 2916 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2917 return (ENOMEM); 2918 } 2919 2920 mtx_lock(&sc->ciss_mtx); 2921 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) { 2922 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2923 mtx_unlock(&sc->ciss_mtx); 2924 return (ENXIO); 2925 } 2926 mtx_unlock(&sc->ciss_mtx); 2927 } 2928 2929 return(0); 2930 } 2931 2932 /************************************************************************ 2933 * Initiate a rescan of the 'logical devices' SIM 2934 */ 2935 static void 2936 ciss_cam_rescan_target(struct ciss_softc *sc, int bus, int target) 2937 { 2938 union ccb *ccb; 2939 2940 debug_called(1); 2941 2942 if ((ccb = xpt_alloc_ccb_nowait()) == NULL) { 2943 ciss_printf(sc, "rescan failed (can't allocate CCB)\n"); 2944 return; 2945 } 2946 2947 if (xpt_create_path(&ccb->ccb_h.path, NULL, 2948 cam_sim_path(sc->ciss_cam_sim[bus]), 2949 target, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 2950 ciss_printf(sc, "rescan failed (can't create path)\n"); 2951 xpt_free_ccb(ccb); 2952 return; 2953 } 2954 xpt_rescan(ccb); 2955 /* scan is now in progress */ 2956 } 2957 2958 /************************************************************************ 2959 * Handle requests coming from CAM 2960 */ 2961 static void 2962 ciss_cam_action(struct cam_sim *sim, union ccb *ccb) 2963 { 2964 struct ciss_softc *sc; 2965 struct ccb_scsiio *csio; 2966 int bus, target; 2967 int physical; 2968 2969 sc = cam_sim_softc(sim); 2970 bus = cam_sim_bus(sim); 2971 csio = (struct ccb_scsiio *)&ccb->csio; 2972 target = csio->ccb_h.target_id; 2973 physical = CISS_IS_PHYSICAL(bus); 2974 2975 switch (ccb->ccb_h.func_code) { 2976 /* perform SCSI I/O */ 2977 case XPT_SCSI_IO: 2978 if (!ciss_cam_action_io(sim, csio)) 2979 return; 2980 break; 2981 2982 /* perform geometry calculations */ 2983 case XPT_CALC_GEOMETRY: 2984 { 2985 struct ccb_calc_geometry *ccg = &ccb->ccg; 2986 struct ciss_ldrive *ld; 2987 2988 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2989 2990 ld = NULL; 2991 if (!physical) 2992 ld = &sc->ciss_logical[bus][target]; 2993 2994 /* 2995 * Use the cached geometry settings unless the fault tolerance 2996 * is invalid. 2997 */ 2998 if (physical || ld->cl_geometry.fault_tolerance == 0xFF) { 2999 u_int32_t secs_per_cylinder; 3000 3001 ccg->heads = 255; 3002 ccg->secs_per_track = 32; 3003 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 3004 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 3005 } else { 3006 ccg->heads = ld->cl_geometry.heads; 3007 ccg->secs_per_track = ld->cl_geometry.sectors; 3008 ccg->cylinders = ntohs(ld->cl_geometry.cylinders); 3009 } 3010 ccb->ccb_h.status = CAM_REQ_CMP; 3011 break; 3012 } 3013 3014 /* handle path attribute inquiry */ 3015 case XPT_PATH_INQ: 3016 { 3017 struct ccb_pathinq *cpi = &ccb->cpi; 3018 int sg_length; 3019 3020 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 3021 3022 cpi->version_num = 1; 3023 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */ 3024 cpi->target_sprt = 0; 3025 cpi->hba_misc = 0; 3026 cpi->max_target = sc->ciss_cfg->max_logical_supported; 3027 cpi->max_lun = 0; /* 'logical drive' channel only */ 3028 cpi->initiator_id = sc->ciss_cfg->max_logical_supported; 3029 strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 3030 strlcpy(cpi->hba_vid, "CISS", HBA_IDLEN); 3031 strlcpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 3032 cpi->unit_number = cam_sim_unit(sim); 3033 cpi->bus_id = cam_sim_bus(sim); 3034 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */ 3035 cpi->transport = XPORT_SPI; 3036 cpi->transport_version = 2; 3037 cpi->protocol = PROTO_SCSI; 3038 cpi->protocol_version = SCSI_REV_2; 3039 if (sc->ciss_cfg->max_sg_length == 0) { 3040 sg_length = 17; 3041 } else { 3042 /* XXX Fix for ZMR cards that advertise max_sg_length == 32 3043 * Confusing bit here. max_sg_length is usually a power of 2. We always 3044 * need to subtract 1 to account for partial pages. Then we need to 3045 * align on a valid PAGE_SIZE so we round down to the nearest power of 2. 3046 * Add 1 so we can then subtract it out in the assignment to maxio. 3047 * The reason for all these shenanigans is to create a maxio value that 3048 * creates IO operations to volumes that yield consistent operations 3049 * with good performance. 3050 */ 3051 sg_length = sc->ciss_cfg->max_sg_length - 1; 3052 sg_length = (1 << (fls(sg_length) - 1)) + 1; 3053 } 3054 cpi->maxio = (min(CISS_MAX_SG_ELEMENTS, sg_length) - 1) * PAGE_SIZE; 3055 ccb->ccb_h.status = CAM_REQ_CMP; 3056 break; 3057 } 3058 3059 case XPT_GET_TRAN_SETTINGS: 3060 { 3061 struct ccb_trans_settings *cts = &ccb->cts; 3062 struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi; 3063 struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi; 3064 3065 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", cam_sim_bus(sim), 3066 ctl->ccb_h.target_id); 3067 /* disconnect always OK */ 3068 cts->protocol = PROTO_SCSI; 3069 cts->protocol_version = SCSI_REV_2; 3070 cts->transport = XPORT_SPI; 3071 cts->transport_version = 2; 3072 3073 spi->valid = CTS_SPI_VALID_DISC; 3074 spi->flags = CTS_SPI_FLAGS_DISC_ENB; 3075 3076 scsi->valid = CTS_SCSI_VALID_TQ; 3077 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB; 3078 3079 cts->ccb_h.status = CAM_REQ_CMP; 3080 break; 3081 } 3082 3083 default: /* we can't do this */ 3084 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code); 3085 ccb->ccb_h.status = CAM_REQ_INVALID; 3086 break; 3087 } 3088 3089 xpt_done(ccb); 3090 } 3091 3092 /************************************************************************ 3093 * Handle a CAM SCSI I/O request. 3094 */ 3095 static int 3096 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio) 3097 { 3098 struct ciss_softc *sc; 3099 int bus, target; 3100 struct ciss_request *cr; 3101 struct ciss_command *cc; 3102 int error; 3103 3104 sc = cam_sim_softc(sim); 3105 bus = cam_sim_bus(sim); 3106 target = csio->ccb_h.target_id; 3107 3108 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun); 3109 3110 /* check that the CDB pointer is not to a physical address */ 3111 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) { 3112 debug(3, " CDB pointer is to physical address"); 3113 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3114 } 3115 3116 /* abandon aborted ccbs or those that have failed validation */ 3117 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 3118 debug(3, "abandoning CCB due to abort/validation failure"); 3119 return(EINVAL); 3120 } 3121 3122 /* handle emulation of some SCSI commands ourself */ 3123 if (ciss_cam_emulate(sc, csio)) 3124 return(0); 3125 3126 /* 3127 * Get a request to manage this command. If we can't, return the 3128 * ccb, freeze the queue and flag so that we unfreeze it when a 3129 * request completes. 3130 */ 3131 if ((error = ciss_get_request(sc, &cr)) != 0) { 3132 xpt_freeze_simq(sim, 1); 3133 sc->ciss_flags |= CISS_FLAG_BUSY; 3134 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3135 return(error); 3136 } 3137 3138 /* 3139 * Build the command. 3140 */ 3141 cc = cr->cr_cc; 3142 cr->cr_data = csio; 3143 cr->cr_length = csio->dxfer_len; 3144 cr->cr_complete = ciss_cam_complete; 3145 cr->cr_private = csio; 3146 3147 /* 3148 * Target the right logical volume. 3149 */ 3150 if (CISS_IS_PHYSICAL(bus)) 3151 cc->header.address = 3152 sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_address; 3153 else 3154 cc->header.address = 3155 sc->ciss_logical[bus][target].cl_address; 3156 cc->cdb.cdb_length = csio->cdb_len; 3157 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3158 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */ 3159 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 3160 cr->cr_flags = CISS_REQ_DATAOUT | CISS_REQ_CCB; 3161 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3162 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 3163 cr->cr_flags = CISS_REQ_DATAIN | CISS_REQ_CCB; 3164 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3165 } else { 3166 cr->cr_data = NULL; 3167 cr->cr_flags = 0; 3168 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 3169 } 3170 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1; 3171 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 3172 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len); 3173 } else { 3174 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len); 3175 } 3176 3177 /* 3178 * Submit the request to the adapter. 3179 * 3180 * Note that this may fail if we're unable to map the request (and 3181 * if we ever learn a transport layer other than simple, may fail 3182 * if the adapter rejects the command). 3183 */ 3184 if ((error = ciss_start(cr)) != 0) { 3185 xpt_freeze_simq(sim, 1); 3186 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3187 if (error == EINPROGRESS) { 3188 error = 0; 3189 } else { 3190 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3191 ciss_release_request(cr); 3192 } 3193 return(error); 3194 } 3195 3196 return(0); 3197 } 3198 3199 /************************************************************************ 3200 * Emulate SCSI commands the adapter doesn't handle as we might like. 3201 */ 3202 static int 3203 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio) 3204 { 3205 int bus, target; 3206 u_int8_t opcode; 3207 3208 target = csio->ccb_h.target_id; 3209 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3210 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 3211 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]; 3212 3213 if (CISS_IS_PHYSICAL(bus)) { 3214 if (sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_online != 1) { 3215 csio->ccb_h.status |= CAM_SEL_TIMEOUT; 3216 xpt_done((union ccb *)csio); 3217 return(1); 3218 } else 3219 return(0); 3220 } 3221 3222 /* 3223 * Handle requests for volumes that don't exist or are not online. 3224 * A selection timeout is slightly better than an illegal request. 3225 * Other errors might be better. 3226 */ 3227 if (sc->ciss_logical[bus][target].cl_status != CISS_LD_ONLINE) { 3228 csio->ccb_h.status |= CAM_SEL_TIMEOUT; 3229 xpt_done((union ccb *)csio); 3230 return(1); 3231 } 3232 3233 /* if we have to fake Synchronise Cache */ 3234 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) { 3235 /* 3236 * If this is a Synchronise Cache command, typically issued when 3237 * a device is closed, flush the adapter and complete now. 3238 */ 3239 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 3240 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) { 3241 ciss_flush_adapter(sc); 3242 csio->ccb_h.status |= CAM_REQ_CMP; 3243 xpt_done((union ccb *)csio); 3244 return(1); 3245 } 3246 } 3247 3248 /* 3249 * A CISS target can only ever have one lun per target. REPORT_LUNS requires 3250 * at least one LUN field to be pre created for us, so snag it and fill in 3251 * the least significant byte indicating 1 LUN here. Emulate the command 3252 * return to shut up warning on console of a CDB error. swb 3253 */ 3254 if (opcode == REPORT_LUNS && csio->dxfer_len > 0) { 3255 csio->data_ptr[3] = 8; 3256 csio->ccb_h.status |= CAM_REQ_CMP; 3257 xpt_done((union ccb *)csio); 3258 return(1); 3259 } 3260 3261 return(0); 3262 } 3263 3264 /************************************************************************ 3265 * Check for possibly-completed commands. 3266 */ 3267 static void 3268 ciss_cam_poll(struct cam_sim *sim) 3269 { 3270 cr_qhead_t qh; 3271 struct ciss_softc *sc = cam_sim_softc(sim); 3272 3273 debug_called(2); 3274 3275 STAILQ_INIT(&qh); 3276 if (sc->ciss_perf) 3277 ciss_perf_done(sc, &qh); 3278 else 3279 ciss_done(sc, &qh); 3280 ciss_complete(sc, &qh); 3281 } 3282 3283 /************************************************************************ 3284 * Handle completion of a command - pass results back through the CCB 3285 */ 3286 static void 3287 ciss_cam_complete(struct ciss_request *cr) 3288 { 3289 struct ciss_softc *sc; 3290 struct ciss_command *cc; 3291 struct ciss_error_info *ce; 3292 struct ccb_scsiio *csio; 3293 int scsi_status; 3294 int command_status; 3295 3296 debug_called(2); 3297 3298 sc = cr->cr_sc; 3299 cc = cr->cr_cc; 3300 ce = (struct ciss_error_info *)&(cc->sg[0]); 3301 csio = (struct ccb_scsiio *)cr->cr_private; 3302 3303 /* 3304 * Extract status values from request. 3305 */ 3306 ciss_report_request(cr, &command_status, &scsi_status); 3307 switch(command_status) { 3308 case CISS_CMD_STATUS_DATA_UNDERRUN: 3309 csio->resid = ce->residual_count; 3310 /* FALLTHROUGH */ 3311 case CISS_CMD_STATUS_SUCCESS: 3312 csio->scsi_status = scsi_status; 3313 debug(2, "SCSI_STATUS_OK"); 3314 csio->ccb_h.status |= CAM_REQ_CMP; 3315 break; 3316 case CISS_CMD_STATUS_TARGET_STATUS: 3317 csio->scsi_status = scsi_status; 3318 bzero(&csio->sense_data, SSD_FULL_SIZE); 3319 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length); 3320 if (csio->sense_len > ce->sense_length) 3321 csio->sense_resid = csio->sense_len - ce->sense_length; 3322 else 3323 csio->sense_resid = 0; 3324 csio->resid = ce->residual_count; 3325 csio->ccb_h.status |= CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 3326 break; 3327 case CISS_CMD_STATUS_DATA_OVERRUN: 3328 csio->ccb_h.status |= CAM_DATA_RUN_ERR; 3329 break; 3330 default: 3331 csio->ccb_h.status |= CAM_REQ_CMP_ERR; 3332 break; 3333 } 3334 3335 /* handle post-command fixup */ 3336 ciss_cam_complete_fixup(sc, csio); 3337 3338 ciss_release_request(cr); 3339 if (sc->ciss_flags & CISS_FLAG_BUSY) { 3340 sc->ciss_flags &= ~CISS_FLAG_BUSY; 3341 if (csio->ccb_h.status & CAM_RELEASE_SIMQ) 3342 xpt_release_simq(xpt_path_sim(csio->ccb_h.path), 0); 3343 else 3344 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3345 } 3346 xpt_done((union ccb *)csio); 3347 } 3348 3349 /******************************************************************************** 3350 * Fix up the result of some commands here. 3351 */ 3352 static void 3353 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio) 3354 { 3355 struct scsi_inquiry_data *inq; 3356 struct ciss_ldrive *cl; 3357 uint8_t *cdb; 3358 int bus, target; 3359 3360 cdb = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 3361 (uint8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes; 3362 if (cdb[0] == INQUIRY && 3363 (cdb[1] & SI_EVPD) == 0 && 3364 (csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN && 3365 csio->dxfer_len >= SHORT_INQUIRY_LENGTH) { 3366 inq = (struct scsi_inquiry_data *)csio->data_ptr; 3367 target = csio->ccb_h.target_id; 3368 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3369 3370 /* 3371 * If the controller is in JBOD mode, there are no logical volumes. 3372 * Let the disks be probed and dealt with via CAM. Else, mask off 3373 * the physical disks and setup the parts of the inq structure for 3374 * the logical volume. swb 3375 */ 3376 if( !(sc->ciss_id->PowerUPNvramFlags & PWR_UP_FLAG_JBOD_ENABLED)){ 3377 if (CISS_IS_PHYSICAL(bus)) { 3378 if (SID_TYPE(inq) == T_DIRECT) 3379 inq->device = (inq->device & 0xe0) | T_NODEVICE; 3380 return; 3381 } 3382 cl = &sc->ciss_logical[bus][target]; 3383 3384 padstr(inq->vendor, "HP", 3385 SID_VENDOR_SIZE); 3386 padstr(inq->product, 3387 ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 3388 SID_PRODUCT_SIZE); 3389 padstr(inq->revision, 3390 ciss_name_ldrive_status(cl->cl_lstatus->status), 3391 SID_REVISION_SIZE); 3392 } 3393 } 3394 } 3395 3396 /******************************************************************************** 3397 * Name the device at (target) 3398 * 3399 * XXX is this strictly correct? 3400 */ 3401 static int 3402 ciss_name_device(struct ciss_softc *sc, int bus, int target) 3403 { 3404 struct cam_periph *periph; 3405 struct cam_path *path; 3406 int status; 3407 3408 if (CISS_IS_PHYSICAL(bus)) 3409 return (0); 3410 3411 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim[bus]), 3412 target, 0); 3413 3414 if (status == CAM_REQ_CMP) { 3415 xpt_path_lock(path); 3416 periph = cam_periph_find(path, NULL); 3417 xpt_path_unlock(path); 3418 xpt_free_path(path); 3419 if (periph != NULL) { 3420 sprintf(sc->ciss_logical[bus][target].cl_name, "%s%d", 3421 periph->periph_name, periph->unit_number); 3422 return(0); 3423 } 3424 } 3425 sc->ciss_logical[bus][target].cl_name[0] = 0; 3426 return(ENOENT); 3427 } 3428 3429 /************************************************************************ 3430 * Periodic status monitoring. 3431 */ 3432 static void 3433 ciss_periodic(void *arg) 3434 { 3435 struct ciss_softc *sc; 3436 struct ciss_request *cr = NULL; 3437 struct ciss_command *cc = NULL; 3438 int error = 0; 3439 3440 debug_called(1); 3441 3442 sc = (struct ciss_softc *)arg; 3443 3444 /* 3445 * Check the adapter heartbeat. 3446 */ 3447 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) { 3448 sc->ciss_heart_attack++; 3449 debug(0, "adapter heart attack in progress 0x%x/%d", 3450 sc->ciss_heartbeat, sc->ciss_heart_attack); 3451 if (sc->ciss_heart_attack == 3) { 3452 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n"); 3453 ciss_disable_adapter(sc); 3454 return; 3455 } 3456 } else { 3457 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat; 3458 sc->ciss_heart_attack = 0; 3459 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat); 3460 } 3461 3462 /* 3463 * Send the NOP message and wait for a response. 3464 */ 3465 if (ciss_nop_message_heartbeat != 0 && (error = ciss_get_request(sc, &cr)) == 0) { 3466 cc = cr->cr_cc; 3467 cr->cr_complete = ciss_nop_complete; 3468 cc->cdb.cdb_length = 1; 3469 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 3470 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3471 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3472 cc->cdb.timeout = 0; 3473 cc->cdb.cdb[0] = CISS_OPCODE_MESSAGE_NOP; 3474 3475 if ((error = ciss_start(cr)) != 0) { 3476 ciss_printf(sc, "SENDING NOP MESSAGE FAILED\n"); 3477 } 3478 } 3479 3480 /* 3481 * If the notify event request has died for some reason, or has 3482 * not started yet, restart it. 3483 */ 3484 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) { 3485 debug(0, "(re)starting Event Notify chain"); 3486 ciss_notify_event(sc); 3487 } 3488 3489 /* 3490 * Reschedule. 3491 */ 3492 callout_reset(&sc->ciss_periodic, CISS_HEARTBEAT_RATE * hz, ciss_periodic, sc); 3493 } 3494 3495 static void 3496 ciss_nop_complete(struct ciss_request *cr) 3497 { 3498 struct ciss_softc *sc; 3499 static int first_time = 1; 3500 3501 sc = cr->cr_sc; 3502 if (ciss_report_request(cr, NULL, NULL) != 0) { 3503 if (first_time == 1) { 3504 first_time = 0; 3505 ciss_printf(sc, "SENDING NOP MESSAGE FAILED (not logging anymore)\n"); 3506 } 3507 } 3508 3509 ciss_release_request(cr); 3510 } 3511 3512 /************************************************************************ 3513 * Disable the adapter. 3514 * 3515 * The all requests in completed queue is failed with hardware error. 3516 * This will cause failover in a multipath configuration. 3517 */ 3518 static void 3519 ciss_disable_adapter(struct ciss_softc *sc) 3520 { 3521 cr_qhead_t qh; 3522 struct ciss_request *cr; 3523 struct ciss_command *cc; 3524 struct ciss_error_info *ce; 3525 int i; 3526 3527 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 3528 pci_disable_busmaster(sc->ciss_dev); 3529 sc->ciss_flags &= ~CISS_FLAG_RUNNING; 3530 3531 STAILQ_INIT(&qh); 3532 for (i = 1; i < sc->ciss_max_requests; i++) { 3533 cr = &sc->ciss_request[i]; 3534 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 3535 continue; 3536 3537 cc = cr->cr_cc; 3538 ce = (struct ciss_error_info *)&(cc->sg[0]); 3539 ce->command_status = CISS_CMD_STATUS_HARDWARE_ERROR; 3540 ciss_enqueue_complete(cr, &qh); 3541 } 3542 3543 for (;;) { 3544 if ((cr = ciss_dequeue_complete(sc, &qh)) == NULL) 3545 break; 3546 3547 /* 3548 * If the request has a callback, invoke it. 3549 */ 3550 if (cr->cr_complete != NULL) { 3551 cr->cr_complete(cr); 3552 continue; 3553 } 3554 3555 /* 3556 * If someone is sleeping on this request, wake them up. 3557 */ 3558 if (cr->cr_flags & CISS_REQ_SLEEP) { 3559 cr->cr_flags &= ~CISS_REQ_SLEEP; 3560 wakeup(cr); 3561 continue; 3562 } 3563 } 3564 } 3565 3566 /************************************************************************ 3567 * Request a notification response from the adapter. 3568 * 3569 * If (cr) is NULL, this is the first request of the adapter, so 3570 * reset the adapter's message pointer and start with the oldest 3571 * message available. 3572 */ 3573 static void 3574 ciss_notify_event(struct ciss_softc *sc) 3575 { 3576 struct ciss_request *cr; 3577 struct ciss_command *cc; 3578 struct ciss_notify_cdb *cnc; 3579 int error; 3580 3581 debug_called(1); 3582 3583 cr = sc->ciss_periodic_notify; 3584 3585 /* get a request if we don't already have one */ 3586 if (cr == NULL) { 3587 if ((error = ciss_get_request(sc, &cr)) != 0) { 3588 debug(0, "can't get notify event request"); 3589 goto out; 3590 } 3591 sc->ciss_periodic_notify = cr; 3592 cr->cr_complete = ciss_notify_complete; 3593 debug(1, "acquired request %d", cr->cr_tag); 3594 } 3595 3596 /* 3597 * Get a databuffer if we don't already have one, note that the 3598 * adapter command wants a larger buffer than the actual 3599 * structure. 3600 */ 3601 if (cr->cr_data == NULL) { 3602 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3603 debug(0, "can't get notify event request buffer"); 3604 error = ENOMEM; 3605 goto out; 3606 } 3607 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3608 } 3609 3610 /* re-setup the request's command (since we never release it) XXX overkill*/ 3611 ciss_preen_command(cr); 3612 3613 /* (re)build the notify event command */ 3614 cc = cr->cr_cc; 3615 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3616 cc->header.address.physical.bus = 0; 3617 cc->header.address.physical.target = 0; 3618 3619 cc->cdb.cdb_length = sizeof(*cnc); 3620 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3621 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3622 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3623 cc->cdb.timeout = 0; /* no timeout, we hope */ 3624 3625 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3626 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE); 3627 cnc->opcode = CISS_OPCODE_READ; 3628 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT; 3629 cnc->timeout = 0; /* no timeout, we hope */ 3630 cnc->synchronous = 0; 3631 cnc->ordered = 0; 3632 cnc->seek_to_oldest = 0; 3633 if ((sc->ciss_flags & CISS_FLAG_RUNNING) == 0) 3634 cnc->new_only = 1; 3635 else 3636 cnc->new_only = 0; 3637 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3638 3639 /* submit the request */ 3640 error = ciss_start(cr); 3641 3642 out: 3643 if (error) { 3644 if (cr != NULL) { 3645 if (cr->cr_data != NULL) 3646 free(cr->cr_data, CISS_MALLOC_CLASS); 3647 ciss_release_request(cr); 3648 } 3649 sc->ciss_periodic_notify = NULL; 3650 debug(0, "can't submit notify event request"); 3651 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3652 } else { 3653 debug(1, "notify event submitted"); 3654 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK; 3655 } 3656 } 3657 3658 static void 3659 ciss_notify_complete(struct ciss_request *cr) 3660 { 3661 struct ciss_notify *cn; 3662 struct ciss_softc *sc; 3663 int scsi_status; 3664 int command_status; 3665 debug_called(1); 3666 3667 cn = (struct ciss_notify *)cr->cr_data; 3668 sc = cr->cr_sc; 3669 3670 /* 3671 * Report request results, decode status. 3672 */ 3673 ciss_report_request(cr, &command_status, &scsi_status); 3674 3675 /* 3676 * Abort the chain on a fatal error. 3677 * 3678 * XXX which of these are actually errors? 3679 */ 3680 if ((command_status != CISS_CMD_STATUS_SUCCESS) && 3681 (command_status != CISS_CMD_STATUS_TARGET_STATUS) && 3682 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */ 3683 ciss_printf(sc, "fatal error in Notify Event request (%s)\n", 3684 ciss_name_command_status(command_status)); 3685 ciss_release_request(cr); 3686 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3687 return; 3688 } 3689 3690 /* 3691 * If the adapter gave us a text message, print it. 3692 */ 3693 if (cn->message[0] != 0) 3694 ciss_printf(sc, "*** %.80s\n", cn->message); 3695 3696 debug(0, "notify event class %d subclass %d detail %d", 3697 cn->class, cn->subclass, cn->detail); 3698 3699 /* 3700 * If the response indicates that the notifier has been aborted, 3701 * release the notifier command. 3702 */ 3703 if ((cn->class == CISS_NOTIFY_NOTIFIER) && 3704 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) && 3705 (cn->detail == 1)) { 3706 debug(0, "notifier exiting"); 3707 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3708 ciss_release_request(cr); 3709 sc->ciss_periodic_notify = NULL; 3710 wakeup(&sc->ciss_periodic_notify); 3711 } else { 3712 /* Handle notify events in a kernel thread */ 3713 ciss_enqueue_notify(cr); 3714 sc->ciss_periodic_notify = NULL; 3715 wakeup(&sc->ciss_periodic_notify); 3716 wakeup(&sc->ciss_notify); 3717 } 3718 /* 3719 * Send a new notify event command, if we're not aborting. 3720 */ 3721 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) { 3722 ciss_notify_event(sc); 3723 } 3724 } 3725 3726 /************************************************************************ 3727 * Abort the Notify Event chain. 3728 * 3729 * Note that we can't just abort the command in progress; we have to 3730 * explicitly issue an Abort Notify Event command in order for the 3731 * adapter to clean up correctly. 3732 * 3733 * If we are called with CISS_FLAG_ABORTING set in the adapter softc, 3734 * the chain will not restart itself. 3735 */ 3736 static int 3737 ciss_notify_abort(struct ciss_softc *sc) 3738 { 3739 struct ciss_request *cr; 3740 struct ciss_command *cc; 3741 struct ciss_notify_cdb *cnc; 3742 int error, command_status, scsi_status; 3743 3744 debug_called(1); 3745 3746 cr = NULL; 3747 error = 0; 3748 3749 /* verify that there's an outstanding command */ 3750 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3751 goto out; 3752 3753 /* get a command to issue the abort with */ 3754 if ((error = ciss_get_request(sc, &cr))) 3755 goto out; 3756 3757 /* get a buffer for the result */ 3758 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3759 debug(0, "can't get notify event request buffer"); 3760 error = ENOMEM; 3761 goto out; 3762 } 3763 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3764 3765 /* build the CDB */ 3766 cc = cr->cr_cc; 3767 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3768 cc->header.address.physical.bus = 0; 3769 cc->header.address.physical.target = 0; 3770 cc->cdb.cdb_length = sizeof(*cnc); 3771 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3772 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3773 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3774 cc->cdb.timeout = 0; /* no timeout, we hope */ 3775 3776 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3777 bzero(cnc, sizeof(*cnc)); 3778 cnc->opcode = CISS_OPCODE_WRITE; 3779 cnc->command = CISS_COMMAND_ABORT_NOTIFY; 3780 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3781 #if 0 3782 ciss_print_request(cr); 3783 #endif 3784 3785 /* 3786 * Submit the request and wait for it to complete. 3787 */ 3788 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3789 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error); 3790 goto out; 3791 } 3792 3793 /* 3794 * Check response. 3795 */ 3796 ciss_report_request(cr, &command_status, &scsi_status); 3797 switch(command_status) { 3798 case CISS_CMD_STATUS_SUCCESS: 3799 break; 3800 case CISS_CMD_STATUS_INVALID_COMMAND: 3801 /* 3802 * Some older adapters don't support the CISS version of this 3803 * command. Fall back to using the BMIC version. 3804 */ 3805 error = ciss_notify_abort_bmic(sc); 3806 if (error != 0) 3807 goto out; 3808 break; 3809 3810 case CISS_CMD_STATUS_TARGET_STATUS: 3811 /* 3812 * This can happen if the adapter thinks there wasn't an outstanding 3813 * Notify Event command but we did. We clean up here. 3814 */ 3815 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) { 3816 if (sc->ciss_periodic_notify != NULL) 3817 ciss_release_request(sc->ciss_periodic_notify); 3818 error = 0; 3819 goto out; 3820 } 3821 /* FALLTHROUGH */ 3822 3823 default: 3824 ciss_printf(sc, "Abort Notify Event command failed (%s)\n", 3825 ciss_name_command_status(command_status)); 3826 error = EIO; 3827 goto out; 3828 } 3829 3830 /* 3831 * Sleep waiting for the notifier command to complete. Note 3832 * that if it doesn't, we may end up in a bad situation, since 3833 * the adapter may deliver it later. Also note that the adapter 3834 * requires the Notify Event command to be cancelled in order to 3835 * maintain internal bookkeeping. 3836 */ 3837 while (sc->ciss_periodic_notify != NULL) { 3838 error = msleep(&sc->ciss_periodic_notify, &sc->ciss_mtx, PRIBIO, "cissNEA", hz * 5); 3839 if (error == EWOULDBLOCK) { 3840 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n"); 3841 break; 3842 } 3843 } 3844 3845 out: 3846 /* release the cancel request */ 3847 if (cr != NULL) { 3848 if (cr->cr_data != NULL) 3849 free(cr->cr_data, CISS_MALLOC_CLASS); 3850 ciss_release_request(cr); 3851 } 3852 if (error == 0) 3853 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3854 return(error); 3855 } 3856 3857 /************************************************************************ 3858 * Abort the Notify Event chain using a BMIC command. 3859 */ 3860 static int 3861 ciss_notify_abort_bmic(struct ciss_softc *sc) 3862 { 3863 struct ciss_request *cr; 3864 int error, command_status; 3865 3866 debug_called(1); 3867 3868 cr = NULL; 3869 error = 0; 3870 3871 /* verify that there's an outstanding command */ 3872 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3873 goto out; 3874 3875 /* 3876 * Build a BMIC command to cancel the Notify on Event command. 3877 * 3878 * Note that we are sending a CISS opcode here. Odd. 3879 */ 3880 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY, 3881 NULL, 0)) != 0) 3882 goto out; 3883 3884 /* 3885 * Submit the request and wait for it to complete. 3886 */ 3887 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3888 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error); 3889 goto out; 3890 } 3891 3892 /* 3893 * Check response. 3894 */ 3895 ciss_report_request(cr, &command_status, NULL); 3896 switch(command_status) { 3897 case CISS_CMD_STATUS_SUCCESS: 3898 break; 3899 default: 3900 ciss_printf(sc, "error cancelling Notify on Event (%s)\n", 3901 ciss_name_command_status(command_status)); 3902 error = EIO; 3903 goto out; 3904 } 3905 3906 out: 3907 if (cr != NULL) 3908 ciss_release_request(cr); 3909 return(error); 3910 } 3911 3912 /************************************************************************ 3913 * Handle rescanning all the logical volumes when a notify event 3914 * causes the drives to come online or offline. 3915 */ 3916 static void 3917 ciss_notify_rescan_logical(struct ciss_softc *sc) 3918 { 3919 struct ciss_lun_report *cll; 3920 struct ciss_ldrive *ld; 3921 int i, j, ndrives; 3922 3923 /* 3924 * We must rescan all logical volumes to get the right logical 3925 * drive address. 3926 */ 3927 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 3928 sc->ciss_cfg->max_logical_supported); 3929 if (cll == NULL) 3930 return; 3931 3932 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 3933 3934 /* 3935 * Delete any of the drives which were destroyed by the 3936 * firmware. 3937 */ 3938 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 3939 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) { 3940 ld = &sc->ciss_logical[i][j]; 3941 3942 if (ld->cl_update == 0) 3943 continue; 3944 3945 if (ld->cl_status != CISS_LD_ONLINE) { 3946 ciss_cam_rescan_target(sc, i, j); 3947 ld->cl_update = 0; 3948 if (ld->cl_ldrive) 3949 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 3950 if (ld->cl_lstatus) 3951 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 3952 3953 ld->cl_ldrive = NULL; 3954 ld->cl_lstatus = NULL; 3955 } 3956 } 3957 } 3958 3959 /* 3960 * Scan for new drives. 3961 */ 3962 for (i = 0; i < ndrives; i++) { 3963 int bus, target; 3964 3965 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 3966 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 3967 ld = &sc->ciss_logical[bus][target]; 3968 3969 if (ld->cl_update == 0) 3970 continue; 3971 3972 ld->cl_update = 0; 3973 ld->cl_address = cll->lun[i]; 3974 ld->cl_controller = &sc->ciss_controllers[bus]; 3975 if (ciss_identify_logical(sc, ld) == 0) { 3976 ciss_cam_rescan_target(sc, bus, target); 3977 } 3978 } 3979 free(cll, CISS_MALLOC_CLASS); 3980 } 3981 3982 /************************************************************************ 3983 * Handle a notify event relating to the status of a logical drive. 3984 * 3985 * XXX need to be able to defer some of these to properly handle 3986 * calling the "ID Physical drive" command, unless the 'extended' 3987 * drive IDs are always in BIG_MAP format. 3988 */ 3989 static void 3990 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn) 3991 { 3992 struct ciss_ldrive *ld; 3993 int ostatus, bus, target; 3994 3995 debug_called(2); 3996 3997 bus = cn->device.physical.bus; 3998 target = cn->data.logical_status.logical_drive; 3999 ld = &sc->ciss_logical[bus][target]; 4000 4001 switch (cn->subclass) { 4002 case CISS_NOTIFY_LOGICAL_STATUS: 4003 switch (cn->detail) { 4004 case 0: 4005 ciss_name_device(sc, bus, target); 4006 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n", 4007 cn->data.logical_status.logical_drive, ld->cl_name, 4008 ciss_name_ldrive_status(cn->data.logical_status.previous_state), 4009 ciss_name_ldrive_status(cn->data.logical_status.new_state), 4010 cn->data.logical_status.spare_state, 4011 "\20\1configured\2rebuilding\3failed\4in use\5available\n"); 4012 4013 /* 4014 * Update our idea of the drive's status. 4015 */ 4016 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state); 4017 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 4018 if (ld->cl_lstatus != NULL) 4019 ld->cl_lstatus->status = cn->data.logical_status.new_state; 4020 4021 /* 4022 * Have CAM rescan the drive if its status has changed. 4023 */ 4024 if (ostatus != ld->cl_status) { 4025 ld->cl_update = 1; 4026 ciss_notify_rescan_logical(sc); 4027 } 4028 4029 break; 4030 4031 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */ 4032 ciss_name_device(sc, bus, target); 4033 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n", 4034 cn->data.logical_status.logical_drive, ld->cl_name); 4035 ciss_accept_media(sc, ld); 4036 4037 ld->cl_update = 1; 4038 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 4039 ciss_notify_rescan_logical(sc); 4040 break; 4041 4042 case 2: 4043 case 3: 4044 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n", 4045 cn->data.rebuild_aborted.logical_drive, 4046 ld->cl_name, 4047 (cn->detail == 2) ? "read" : "write"); 4048 break; 4049 } 4050 break; 4051 4052 case CISS_NOTIFY_LOGICAL_ERROR: 4053 if (cn->detail == 0) { 4054 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n", 4055 cn->data.io_error.logical_drive, 4056 ld->cl_name, 4057 cn->data.io_error.failure_bus, 4058 cn->data.io_error.failure_drive); 4059 /* XXX should we take the drive down at this point, or will we be told? */ 4060 } 4061 break; 4062 4063 case CISS_NOTIFY_LOGICAL_SURFACE: 4064 if (cn->detail == 0) 4065 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n", 4066 cn->data.consistency_completed.logical_drive, 4067 ld->cl_name); 4068 break; 4069 } 4070 } 4071 4072 /************************************************************************ 4073 * Handle a notify event relating to the status of a physical drive. 4074 */ 4075 static void 4076 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn) 4077 { 4078 } 4079 4080 /************************************************************************ 4081 * Handle a notify event relating to the status of a physical drive. 4082 */ 4083 static void 4084 ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn) 4085 { 4086 struct ciss_lun_report *cll = NULL; 4087 int bus, target; 4088 4089 switch (cn->subclass) { 4090 case CISS_NOTIFY_HOTPLUG_PHYSICAL: 4091 case CISS_NOTIFY_HOTPLUG_NONDISK: 4092 bus = CISS_BIG_MAP_BUS(sc, cn->data.drive.big_physical_drive_number); 4093 target = 4094 CISS_BIG_MAP_TARGET(sc, cn->data.drive.big_physical_drive_number); 4095 4096 if (cn->detail == 0) { 4097 /* 4098 * Mark the device offline so that it'll start producing selection 4099 * timeouts to the upper layer. 4100 */ 4101 if ((bus >= 0) && (target >= 0)) 4102 sc->ciss_physical[bus][target].cp_online = 0; 4103 } else { 4104 /* 4105 * Rescan the physical lun list for new items 4106 */ 4107 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 4108 sc->ciss_cfg->max_physical_supported); 4109 if (cll == NULL) { 4110 ciss_printf(sc, "Warning, cannot get physical lun list\n"); 4111 break; 4112 } 4113 ciss_filter_physical(sc, cll); 4114 } 4115 break; 4116 4117 default: 4118 ciss_printf(sc, "Unknown hotplug event %d\n", cn->subclass); 4119 return; 4120 } 4121 4122 if (cll != NULL) 4123 free(cll, CISS_MALLOC_CLASS); 4124 } 4125 4126 /************************************************************************ 4127 * Handle deferred processing of notify events. Notify events may need 4128 * sleep which is unsafe during an interrupt. 4129 */ 4130 static void 4131 ciss_notify_thread(void *arg) 4132 { 4133 struct ciss_softc *sc; 4134 struct ciss_request *cr; 4135 struct ciss_notify *cn; 4136 4137 sc = (struct ciss_softc *)arg; 4138 mtx_lock(&sc->ciss_mtx); 4139 4140 for (;;) { 4141 if (STAILQ_EMPTY(&sc->ciss_notify) != 0 && 4142 (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) == 0) { 4143 msleep(&sc->ciss_notify, &sc->ciss_mtx, PUSER, "idle", 0); 4144 } 4145 4146 if (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) 4147 break; 4148 4149 cr = ciss_dequeue_notify(sc); 4150 4151 if (cr == NULL) 4152 panic("cr null"); 4153 cn = (struct ciss_notify *)cr->cr_data; 4154 4155 switch (cn->class) { 4156 case CISS_NOTIFY_HOTPLUG: 4157 ciss_notify_hotplug(sc, cn); 4158 break; 4159 case CISS_NOTIFY_LOGICAL: 4160 ciss_notify_logical(sc, cn); 4161 break; 4162 case CISS_NOTIFY_PHYSICAL: 4163 ciss_notify_physical(sc, cn); 4164 break; 4165 } 4166 4167 ciss_release_request(cr); 4168 } 4169 sc->ciss_notify_thread = NULL; 4170 wakeup(&sc->ciss_notify_thread); 4171 4172 mtx_unlock(&sc->ciss_mtx); 4173 kproc_exit(0); 4174 } 4175 4176 /************************************************************************ 4177 * Start the notification kernel thread. 4178 */ 4179 static void 4180 ciss_spawn_notify_thread(struct ciss_softc *sc) 4181 { 4182 4183 if (kproc_create((void(*)(void *))ciss_notify_thread, sc, 4184 &sc->ciss_notify_thread, 0, 0, "ciss_notify%d", 4185 device_get_unit(sc->ciss_dev))) 4186 panic("Could not create notify thread\n"); 4187 } 4188 4189 /************************************************************************ 4190 * Kill the notification kernel thread. 4191 */ 4192 static void 4193 ciss_kill_notify_thread(struct ciss_softc *sc) 4194 { 4195 4196 if (sc->ciss_notify_thread == NULL) 4197 return; 4198 4199 sc->ciss_flags |= CISS_FLAG_THREAD_SHUT; 4200 wakeup(&sc->ciss_notify); 4201 msleep(&sc->ciss_notify_thread, &sc->ciss_mtx, PUSER, "thtrm", 0); 4202 } 4203 4204 /************************************************************************ 4205 * Print a request. 4206 */ 4207 #ifdef DDB 4208 static void 4209 ciss_print_request(struct ciss_request *cr) 4210 { 4211 struct ciss_softc *sc; 4212 struct ciss_command *cc; 4213 int i; 4214 4215 sc = cr->cr_sc; 4216 cc = cr->cr_cc; 4217 4218 ciss_printf(sc, "REQUEST @ %p\n", cr); 4219 ciss_printf(sc, " data %p/%d tag %d flags %b\n", 4220 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags, 4221 "\20\1mapped\2sleep\3poll\4dataout\5datain\n"); 4222 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n", 4223 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag); 4224 switch(cc->header.address.mode.mode) { 4225 case CISS_HDR_ADDRESS_MODE_PERIPHERAL: 4226 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL: 4227 ciss_printf(sc, " physical bus %d target %d\n", 4228 cc->header.address.physical.bus, cc->header.address.physical.target); 4229 break; 4230 case CISS_HDR_ADDRESS_MODE_LOGICAL: 4231 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun); 4232 break; 4233 } 4234 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n", 4235 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" : 4236 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" : 4237 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??", 4238 cc->cdb.cdb_length, 4239 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" : 4240 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??", 4241 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" : 4242 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" : 4243 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" : 4244 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" : 4245 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??"); 4246 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " "); 4247 4248 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) { 4249 /* XXX print error info */ 4250 } else { 4251 /* since we don't use chained s/g, don't support it here */ 4252 for (i = 0; i < cc->header.sg_in_list; i++) { 4253 if ((i % 4) == 0) 4254 ciss_printf(sc, " "); 4255 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length); 4256 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1))) 4257 printf("\n"); 4258 } 4259 } 4260 } 4261 #endif 4262 4263 /************************************************************************ 4264 * Print information about the status of a logical drive. 4265 */ 4266 static void 4267 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld) 4268 { 4269 int bus, target, i; 4270 4271 if (ld->cl_lstatus == NULL) { 4272 printf("does not exist\n"); 4273 return; 4274 } 4275 4276 /* print drive status */ 4277 switch(ld->cl_lstatus->status) { 4278 case CISS_LSTATUS_OK: 4279 printf("online\n"); 4280 break; 4281 case CISS_LSTATUS_INTERIM_RECOVERY: 4282 printf("in interim recovery mode\n"); 4283 break; 4284 case CISS_LSTATUS_READY_RECOVERY: 4285 printf("ready to begin recovery\n"); 4286 break; 4287 case CISS_LSTATUS_RECOVERING: 4288 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4289 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4290 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n", 4291 bus, target, ld->cl_lstatus->blocks_to_recover); 4292 break; 4293 case CISS_LSTATUS_EXPANDING: 4294 printf("being expanded, %u blocks remaining\n", 4295 ld->cl_lstatus->blocks_to_recover); 4296 break; 4297 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4298 printf("queued for expansion\n"); 4299 break; 4300 case CISS_LSTATUS_FAILED: 4301 printf("queued for expansion\n"); 4302 break; 4303 case CISS_LSTATUS_WRONG_PDRIVE: 4304 printf("wrong physical drive inserted\n"); 4305 break; 4306 case CISS_LSTATUS_MISSING_PDRIVE: 4307 printf("missing a needed physical drive\n"); 4308 break; 4309 case CISS_LSTATUS_BECOMING_READY: 4310 printf("becoming ready\n"); 4311 break; 4312 } 4313 4314 /* print failed physical drives */ 4315 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) { 4316 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]); 4317 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]); 4318 if (bus == -1) 4319 continue; 4320 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target, 4321 ld->cl_lstatus->drive_failure_map[i]); 4322 } 4323 } 4324 4325 #ifdef DDB 4326 #include <ddb/ddb.h> 4327 /************************************************************************ 4328 * Print information about the controller/driver. 4329 */ 4330 static void 4331 ciss_print_adapter(struct ciss_softc *sc) 4332 { 4333 int i, j; 4334 4335 ciss_printf(sc, "ADAPTER:\n"); 4336 for (i = 0; i < CISSQ_COUNT; i++) { 4337 ciss_printf(sc, "%s %d/%d\n", 4338 i == 0 ? "free" : 4339 i == 1 ? "busy" : "complete", 4340 sc->ciss_qstat[i].q_length, 4341 sc->ciss_qstat[i].q_max); 4342 } 4343 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests); 4344 ciss_printf(sc, "flags %b\n", sc->ciss_flags, 4345 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n"); 4346 4347 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 4348 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) { 4349 ciss_printf(sc, "LOGICAL DRIVE %d: ", i); 4350 ciss_print_ldrive(sc, &sc->ciss_logical[i][j]); 4351 } 4352 } 4353 4354 /* XXX Should physical drives be printed out here? */ 4355 4356 for (i = 1; i < sc->ciss_max_requests; i++) 4357 ciss_print_request(sc->ciss_request + i); 4358 } 4359 4360 /* DDB hook */ 4361 DB_COMMAND(ciss_prt, db_ciss_prt) 4362 { 4363 struct ciss_softc *sc; 4364 devclass_t dc; 4365 int maxciss, i; 4366 4367 dc = devclass_find("ciss"); 4368 if ( dc == NULL ) { 4369 printf("%s: can't find devclass!\n", __func__); 4370 return; 4371 } 4372 maxciss = devclass_get_maxunit(dc); 4373 for (i = 0; i < maxciss; i++) { 4374 sc = devclass_get_softc(dc, i); 4375 ciss_print_adapter(sc); 4376 } 4377 } 4378 #endif 4379 4380 /************************************************************************ 4381 * Return a name for a logical drive status value. 4382 */ 4383 static const char * 4384 ciss_name_ldrive_status(int status) 4385 { 4386 switch (status) { 4387 case CISS_LSTATUS_OK: 4388 return("OK"); 4389 case CISS_LSTATUS_FAILED: 4390 return("failed"); 4391 case CISS_LSTATUS_NOT_CONFIGURED: 4392 return("not configured"); 4393 case CISS_LSTATUS_INTERIM_RECOVERY: 4394 return("interim recovery"); 4395 case CISS_LSTATUS_READY_RECOVERY: 4396 return("ready for recovery"); 4397 case CISS_LSTATUS_RECOVERING: 4398 return("recovering"); 4399 case CISS_LSTATUS_WRONG_PDRIVE: 4400 return("wrong physical drive inserted"); 4401 case CISS_LSTATUS_MISSING_PDRIVE: 4402 return("missing physical drive"); 4403 case CISS_LSTATUS_EXPANDING: 4404 return("expanding"); 4405 case CISS_LSTATUS_BECOMING_READY: 4406 return("becoming ready"); 4407 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4408 return("queued for expansion"); 4409 } 4410 return("unknown status"); 4411 } 4412 4413 /************************************************************************ 4414 * Return an online/offline/nonexistent value for a logical drive 4415 * status value. 4416 */ 4417 static int 4418 ciss_decode_ldrive_status(int status) 4419 { 4420 switch(status) { 4421 case CISS_LSTATUS_NOT_CONFIGURED: 4422 return(CISS_LD_NONEXISTENT); 4423 4424 case CISS_LSTATUS_OK: 4425 case CISS_LSTATUS_INTERIM_RECOVERY: 4426 case CISS_LSTATUS_READY_RECOVERY: 4427 case CISS_LSTATUS_RECOVERING: 4428 case CISS_LSTATUS_EXPANDING: 4429 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4430 return(CISS_LD_ONLINE); 4431 4432 case CISS_LSTATUS_FAILED: 4433 case CISS_LSTATUS_WRONG_PDRIVE: 4434 case CISS_LSTATUS_MISSING_PDRIVE: 4435 case CISS_LSTATUS_BECOMING_READY: 4436 default: 4437 return(CISS_LD_OFFLINE); 4438 } 4439 } 4440 4441 /************************************************************************ 4442 * Return a name for a logical drive's organisation. 4443 */ 4444 static const char * 4445 ciss_name_ldrive_org(int org) 4446 { 4447 switch(org) { 4448 case CISS_LDRIVE_RAID0: 4449 return("RAID 0"); 4450 case CISS_LDRIVE_RAID1: 4451 return("RAID 1(1+0)"); 4452 case CISS_LDRIVE_RAID4: 4453 return("RAID 4"); 4454 case CISS_LDRIVE_RAID5: 4455 return("RAID 5"); 4456 case CISS_LDRIVE_RAID51: 4457 return("RAID 5+1"); 4458 case CISS_LDRIVE_RAIDADG: 4459 return("RAID ADG"); 4460 } 4461 return("unknown"); 4462 } 4463 4464 /************************************************************************ 4465 * Return a name for a command status value. 4466 */ 4467 static const char * 4468 ciss_name_command_status(int status) 4469 { 4470 switch(status) { 4471 case CISS_CMD_STATUS_SUCCESS: 4472 return("success"); 4473 case CISS_CMD_STATUS_TARGET_STATUS: 4474 return("target status"); 4475 case CISS_CMD_STATUS_DATA_UNDERRUN: 4476 return("data underrun"); 4477 case CISS_CMD_STATUS_DATA_OVERRUN: 4478 return("data overrun"); 4479 case CISS_CMD_STATUS_INVALID_COMMAND: 4480 return("invalid command"); 4481 case CISS_CMD_STATUS_PROTOCOL_ERROR: 4482 return("protocol error"); 4483 case CISS_CMD_STATUS_HARDWARE_ERROR: 4484 return("hardware error"); 4485 case CISS_CMD_STATUS_CONNECTION_LOST: 4486 return("connection lost"); 4487 case CISS_CMD_STATUS_ABORTED: 4488 return("aborted"); 4489 case CISS_CMD_STATUS_ABORT_FAILED: 4490 return("abort failed"); 4491 case CISS_CMD_STATUS_UNSOLICITED_ABORT: 4492 return("unsolicited abort"); 4493 case CISS_CMD_STATUS_TIMEOUT: 4494 return("timeout"); 4495 case CISS_CMD_STATUS_UNABORTABLE: 4496 return("unabortable"); 4497 } 4498 return("unknown status"); 4499 } 4500 4501 /************************************************************************ 4502 * Handle an open on the control device. 4503 */ 4504 static int 4505 ciss_open(struct cdev *dev, int flags, int fmt, struct thread *p) 4506 { 4507 struct ciss_softc *sc; 4508 4509 debug_called(1); 4510 4511 sc = (struct ciss_softc *)dev->si_drv1; 4512 4513 /* we might want to veto if someone already has us open */ 4514 4515 mtx_lock(&sc->ciss_mtx); 4516 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN; 4517 mtx_unlock(&sc->ciss_mtx); 4518 return(0); 4519 } 4520 4521 /************************************************************************ 4522 * Handle the last close on the control device. 4523 */ 4524 static int 4525 ciss_close(struct cdev *dev, int flags, int fmt, struct thread *p) 4526 { 4527 struct ciss_softc *sc; 4528 4529 debug_called(1); 4530 4531 sc = (struct ciss_softc *)dev->si_drv1; 4532 4533 mtx_lock(&sc->ciss_mtx); 4534 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN; 4535 mtx_unlock(&sc->ciss_mtx); 4536 return (0); 4537 } 4538 4539 /******************************************************************************** 4540 * Handle adapter-specific control operations. 4541 * 4542 * Note that the API here is compatible with the Linux driver, in order to 4543 * simplify the porting of Compaq's userland tools. 4544 */ 4545 static int 4546 ciss_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag, struct thread *p) 4547 { 4548 struct ciss_softc *sc; 4549 IOCTL_Command_struct *ioc = (IOCTL_Command_struct *)addr; 4550 #ifdef __amd64__ 4551 IOCTL_Command_struct32 *ioc32 = (IOCTL_Command_struct32 *)addr; 4552 IOCTL_Command_struct ioc_swab; 4553 #endif 4554 int error; 4555 4556 debug_called(1); 4557 4558 sc = (struct ciss_softc *)dev->si_drv1; 4559 error = 0; 4560 mtx_lock(&sc->ciss_mtx); 4561 4562 switch(cmd) { 4563 case CCISS_GETQSTATS: 4564 { 4565 union ciss_statrequest *cr = (union ciss_statrequest *)addr; 4566 4567 switch (cr->cs_item) { 4568 case CISSQ_FREE: 4569 case CISSQ_NOTIFY: 4570 bcopy(&sc->ciss_qstat[cr->cs_item], &cr->cs_qstat, 4571 sizeof(struct ciss_qstat)); 4572 break; 4573 default: 4574 error = ENOIOCTL; 4575 break; 4576 } 4577 4578 break; 4579 } 4580 4581 case CCISS_GETPCIINFO: 4582 { 4583 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr; 4584 4585 pis->bus = pci_get_bus(sc->ciss_dev); 4586 pis->dev_fn = pci_get_slot(sc->ciss_dev); 4587 pis->board_id = (pci_get_subvendor(sc->ciss_dev) << 16) | 4588 pci_get_subdevice(sc->ciss_dev); 4589 4590 break; 4591 } 4592 4593 case CCISS_GETINTINFO: 4594 { 4595 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4596 4597 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay; 4598 cis->count = sc->ciss_cfg->interrupt_coalesce_count; 4599 4600 break; 4601 } 4602 4603 case CCISS_SETINTINFO: 4604 { 4605 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4606 4607 if ((cis->delay == 0) && (cis->count == 0)) { 4608 error = EINVAL; 4609 break; 4610 } 4611 4612 /* 4613 * XXX apparently this is only safe if the controller is idle, 4614 * we should suspend it before doing this. 4615 */ 4616 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay; 4617 sc->ciss_cfg->interrupt_coalesce_count = cis->count; 4618 4619 if (ciss_update_config(sc)) 4620 error = EIO; 4621 4622 /* XXX resume the controller here */ 4623 break; 4624 } 4625 4626 case CCISS_GETNODENAME: 4627 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr, 4628 sizeof(NodeName_type)); 4629 break; 4630 4631 case CCISS_SETNODENAME: 4632 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name, 4633 sizeof(NodeName_type)); 4634 if (ciss_update_config(sc)) 4635 error = EIO; 4636 break; 4637 4638 case CCISS_GETHEARTBEAT: 4639 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat; 4640 break; 4641 4642 case CCISS_GETBUSTYPES: 4643 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types; 4644 break; 4645 4646 case CCISS_GETFIRMVER: 4647 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr, 4648 sizeof(FirmwareVer_type)); 4649 break; 4650 4651 case CCISS_GETDRIVERVER: 4652 *(DriverVer_type *)addr = CISS_DRIVER_VERSION; 4653 break; 4654 4655 case CCISS_REVALIDVOLS: 4656 /* 4657 * This is a bit ugly; to do it "right" we really need 4658 * to find any disks that have changed, kick CAM off them, 4659 * then rescan only these disks. It'd be nice if they 4660 * a) told us which disk(s) they were going to play with, 4661 * and b) which ones had arrived. 8( 4662 */ 4663 break; 4664 4665 #ifdef __amd64__ 4666 case CCISS_PASSTHRU32: 4667 ioc_swab.LUN_info = ioc32->LUN_info; 4668 ioc_swab.Request = ioc32->Request; 4669 ioc_swab.error_info = ioc32->error_info; 4670 ioc_swab.buf_size = ioc32->buf_size; 4671 ioc_swab.buf = (u_int8_t *)(uintptr_t)ioc32->buf; 4672 ioc = &ioc_swab; 4673 /* FALLTHROUGH */ 4674 #endif 4675 4676 case CCISS_PASSTHRU: 4677 error = ciss_user_command(sc, ioc); 4678 break; 4679 4680 default: 4681 debug(0, "unknown ioctl 0x%lx", cmd); 4682 4683 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO); 4684 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO); 4685 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO); 4686 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME); 4687 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME); 4688 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT); 4689 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES); 4690 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER); 4691 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER); 4692 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS); 4693 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU); 4694 4695 error = ENOIOCTL; 4696 break; 4697 } 4698 4699 mtx_unlock(&sc->ciss_mtx); 4700 return(error); 4701 } 4702