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