1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2001 Michael Smith 5 * Copyright (c) 2004 Paul Saab 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * $FreeBSD$ 30 */ 31 32 /* 33 * Common Interface for SCSI-3 Support driver. 34 * 35 * CISS claims to provide a common interface between a generic SCSI 36 * transport and an intelligent host adapter. 37 * 38 * This driver supports CISS as defined in the document "CISS Command 39 * Interface for SCSI-3 Support Open Specification", Version 1.04, 40 * Valence Number 1, dated 20001127, produced by Compaq Computer 41 * Corporation. This document appears to be a hastily and somewhat 42 * arbitrarlily cut-down version of a larger (and probably even more 43 * chaotic and inconsistent) Compaq internal document. Various 44 * details were also gleaned from Compaq's "cciss" driver for Linux. 45 * 46 * We provide a shim layer between the CISS interface and CAM, 47 * offloading most of the queueing and being-a-disk chores onto CAM. 48 * Entry to the driver is via the PCI bus attachment (ciss_probe, 49 * ciss_attach, etc) and via the CAM interface (ciss_cam_action, 50 * ciss_cam_poll). The Compaq CISS adapters are, however, poor SCSI 51 * citizens and we have to fake up some responses to get reasonable 52 * behaviour out of them. In addition, the CISS command set is by no 53 * means adequate to support the functionality of a RAID controller, 54 * and thus the supported Compaq adapters utilise portions of the 55 * control protocol from earlier Compaq adapter families. 56 * 57 * Note that we only support the "simple" transport layer over PCI. 58 * This interface (ab)uses the I2O register set (specifically the post 59 * queues) to exchange commands with the adapter. Other interfaces 60 * are available, but we aren't supposed to know about them, and it is 61 * dubious whether they would provide major performance improvements 62 * except under extreme load. 63 * 64 * Currently the only supported CISS adapters are the Compaq Smart 65 * Array 5* series (5300, 5i, 532). Even with only three adapters, 66 * Compaq still manage to have interface variations. 67 * 68 * 69 * Thanks must go to Fred Harris and Darryl DeVinney at Compaq, as 70 * well as Paul Saab at Yahoo! for their assistance in making this 71 * driver happen. 72 * 73 * More thanks must go to John Cagle at HP for the countless hours 74 * spent making this driver "work" with the MSA* series storage 75 * enclosures. Without his help (and nagging), this driver could not 76 * be used with these enclosures. 77 */ 78 79 #include <sys/param.h> 80 #include <sys/systm.h> 81 #include <sys/malloc.h> 82 #include <sys/kernel.h> 83 #include <sys/bus.h> 84 #include <sys/conf.h> 85 #include <sys/stat.h> 86 #include <sys/kthread.h> 87 #include <sys/queue.h> 88 #include <sys/sysctl.h> 89 90 #include <cam/cam.h> 91 #include <cam/cam_ccb.h> 92 #include <cam/cam_periph.h> 93 #include <cam/cam_sim.h> 94 #include <cam/cam_xpt_sim.h> 95 #include <cam/scsi/scsi_all.h> 96 #include <cam/scsi/scsi_message.h> 97 98 #include <machine/bus.h> 99 #include <machine/endian.h> 100 #include <machine/resource.h> 101 #include <sys/rman.h> 102 103 #include <dev/pci/pcireg.h> 104 #include <dev/pci/pcivar.h> 105 106 #include <dev/ciss/cissreg.h> 107 #include <dev/ciss/cissio.h> 108 #include <dev/ciss/cissvar.h> 109 110 #ifdef CISS_DEBUG 111 #include "opt_ddb.h" 112 #endif 113 114 static MALLOC_DEFINE(CISS_MALLOC_CLASS, "ciss_data", 115 "ciss internal data buffers"); 116 117 /* pci interface */ 118 static int ciss_lookup(device_t dev); 119 static int ciss_probe(device_t dev); 120 static int ciss_attach(device_t dev); 121 static int ciss_detach(device_t dev); 122 static int ciss_shutdown(device_t dev); 123 124 /* (de)initialisation functions, control wrappers */ 125 static int ciss_init_pci(struct ciss_softc *sc); 126 static int ciss_setup_msix(struct ciss_softc *sc); 127 static int ciss_init_perf(struct ciss_softc *sc); 128 static int ciss_wait_adapter(struct ciss_softc *sc); 129 static int ciss_flush_adapter(struct ciss_softc *sc); 130 static int ciss_init_requests(struct ciss_softc *sc); 131 static void ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, 132 int nseg, int error); 133 static int ciss_identify_adapter(struct ciss_softc *sc); 134 static int ciss_init_logical(struct ciss_softc *sc); 135 static int ciss_init_physical(struct ciss_softc *sc); 136 static int ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll); 137 static int ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld); 138 static int ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld); 139 static int ciss_update_config(struct ciss_softc *sc); 140 static int ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld); 141 static void ciss_init_sysctl(struct ciss_softc *sc); 142 static void ciss_soft_reset(struct ciss_softc *sc); 143 static void ciss_free(struct ciss_softc *sc); 144 static void ciss_spawn_notify_thread(struct ciss_softc *sc); 145 static void ciss_kill_notify_thread(struct ciss_softc *sc); 146 147 /* request submission/completion */ 148 static int ciss_start(struct ciss_request *cr); 149 static void ciss_done(struct ciss_softc *sc, cr_qhead_t *qh); 150 static void ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh); 151 static void ciss_intr(void *arg); 152 static void ciss_perf_intr(void *arg); 153 static void ciss_perf_msi_intr(void *arg); 154 static void ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh); 155 static int _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func); 156 static int ciss_synch_request(struct ciss_request *cr, int timeout); 157 static int ciss_poll_request(struct ciss_request *cr, int timeout); 158 static int ciss_wait_request(struct ciss_request *cr, int timeout); 159 #if 0 160 static int ciss_abort_request(struct ciss_request *cr); 161 #endif 162 163 /* request queueing */ 164 static int ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp); 165 static void ciss_preen_command(struct ciss_request *cr); 166 static void ciss_release_request(struct ciss_request *cr); 167 168 /* request helpers */ 169 static int ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 170 int opcode, void **bufp, size_t bufsize); 171 static int ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc); 172 173 /* DMA map/unmap */ 174 static int ciss_map_request(struct ciss_request *cr); 175 static void ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, 176 int nseg, int error); 177 static void ciss_unmap_request(struct ciss_request *cr); 178 179 /* CAM interface */ 180 static int ciss_cam_init(struct ciss_softc *sc); 181 static void ciss_cam_rescan_target(struct ciss_softc *sc, 182 int bus, int target); 183 static void ciss_cam_action(struct cam_sim *sim, union ccb *ccb); 184 static int ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio); 185 static int ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio); 186 static void ciss_cam_poll(struct cam_sim *sim); 187 static void ciss_cam_complete(struct ciss_request *cr); 188 static void ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio); 189 static int ciss_name_device(struct ciss_softc *sc, int bus, int target); 190 191 /* periodic status monitoring */ 192 static void ciss_periodic(void *arg); 193 static void ciss_nop_complete(struct ciss_request *cr); 194 static void ciss_disable_adapter(struct ciss_softc *sc); 195 static void ciss_notify_event(struct ciss_softc *sc); 196 static void ciss_notify_complete(struct ciss_request *cr); 197 static int ciss_notify_abort(struct ciss_softc *sc); 198 static int ciss_notify_abort_bmic(struct ciss_softc *sc); 199 static void ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn); 200 static void ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn); 201 static void ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn); 202 203 /* debugging output */ 204 #ifdef DDB 205 static void ciss_print_request(struct ciss_request *cr); 206 #endif 207 static void ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld); 208 static const char *ciss_name_ldrive_status(int status); 209 static int ciss_decode_ldrive_status(int status); 210 static const char *ciss_name_ldrive_org(int org); 211 static const char *ciss_name_command_status(int status); 212 213 /* 214 * PCI bus interface. 215 */ 216 static device_method_t ciss_methods[] = { 217 /* Device interface */ 218 DEVMETHOD(device_probe, ciss_probe), 219 DEVMETHOD(device_attach, ciss_attach), 220 DEVMETHOD(device_detach, ciss_detach), 221 DEVMETHOD(device_shutdown, ciss_shutdown), 222 { 0, 0 } 223 }; 224 225 static driver_t ciss_pci_driver = { 226 "ciss", 227 ciss_methods, 228 sizeof(struct ciss_softc) 229 }; 230 231 /* 232 * Control device interface. 233 */ 234 static d_open_t ciss_open; 235 static d_close_t ciss_close; 236 static d_ioctl_t ciss_ioctl; 237 238 static struct cdevsw ciss_cdevsw = { 239 .d_version = D_VERSION, 240 .d_flags = 0, 241 .d_open = ciss_open, 242 .d_close = ciss_close, 243 .d_ioctl = ciss_ioctl, 244 .d_name = "ciss", 245 }; 246 247 /* 248 * This tunable can be set at boot time and controls whether physical devices 249 * that are marked hidden by the firmware should be exposed anyways. 250 */ 251 static unsigned int ciss_expose_hidden_physical = 0; 252 TUNABLE_INT("hw.ciss.expose_hidden_physical", &ciss_expose_hidden_physical); 253 254 static unsigned int ciss_nop_message_heartbeat = 0; 255 TUNABLE_INT("hw.ciss.nop_message_heartbeat", &ciss_nop_message_heartbeat); 256 257 /* 258 * This tunable can force a particular transport to be used: 259 * <= 0 : use default 260 * 1 : force simple 261 * 2 : force performant 262 */ 263 static int ciss_force_transport = 0; 264 TUNABLE_INT("hw.ciss.force_transport", &ciss_force_transport); 265 266 /* 267 * This tunable can force a particular interrupt delivery method to be used: 268 * <= 0 : use default 269 * 1 : force INTx 270 * 2 : force MSIX 271 */ 272 static int ciss_force_interrupt = 0; 273 TUNABLE_INT("hw.ciss.force_interrupt", &ciss_force_interrupt); 274 275 /************************************************************************ 276 * CISS adapters amazingly don't have a defined programming interface 277 * value. (One could say some very despairing things about PCI and 278 * people just not getting the general idea.) So we are forced to 279 * stick with matching against subvendor/subdevice, and thus have to 280 * be updated for every new CISS adapter that appears. 281 */ 282 #define CISS_BOARD_UNKNWON 0 283 #define CISS_BOARD_SA5 1 284 #define CISS_BOARD_SA5B 2 285 #define CISS_BOARD_NOMSI (1<<4) 286 #define CISS_BOARD_SIMPLE (1<<5) 287 288 static struct 289 { 290 u_int16_t subvendor; 291 u_int16_t subdevice; 292 int flags; 293 char *desc; 294 } ciss_vendor_data[] = { 295 { 0x0e11, 0x4070, CISS_BOARD_SA5|CISS_BOARD_NOMSI|CISS_BOARD_SIMPLE, 296 "Compaq Smart Array 5300" }, 297 { 0x0e11, 0x4080, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 5i" }, 298 { 0x0e11, 0x4082, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 532" }, 299 { 0x0e11, 0x4083, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "HP Smart Array 5312" }, 300 { 0x0e11, 0x4091, CISS_BOARD_SA5, "HP Smart Array 6i" }, 301 { 0x0e11, 0x409A, CISS_BOARD_SA5, "HP Smart Array 641" }, 302 { 0x0e11, 0x409B, CISS_BOARD_SA5, "HP Smart Array 642" }, 303 { 0x0e11, 0x409C, CISS_BOARD_SA5, "HP Smart Array 6400" }, 304 { 0x0e11, 0x409D, CISS_BOARD_SA5, "HP Smart Array 6400 EM" }, 305 { 0x103C, 0x3211, CISS_BOARD_SA5, "HP Smart Array E200i" }, 306 { 0x103C, 0x3212, CISS_BOARD_SA5, "HP Smart Array E200" }, 307 { 0x103C, 0x3213, CISS_BOARD_SA5, "HP Smart Array E200i" }, 308 { 0x103C, 0x3214, CISS_BOARD_SA5, "HP Smart Array E200i" }, 309 { 0x103C, 0x3215, CISS_BOARD_SA5, "HP Smart Array E200i" }, 310 { 0x103C, 0x3220, CISS_BOARD_SA5, "HP Smart Array" }, 311 { 0x103C, 0x3222, CISS_BOARD_SA5, "HP Smart Array" }, 312 { 0x103C, 0x3223, CISS_BOARD_SA5, "HP Smart Array P800" }, 313 { 0x103C, 0x3225, CISS_BOARD_SA5, "HP Smart Array P600" }, 314 { 0x103C, 0x3230, CISS_BOARD_SA5, "HP Smart Array" }, 315 { 0x103C, 0x3231, CISS_BOARD_SA5, "HP Smart Array" }, 316 { 0x103C, 0x3232, CISS_BOARD_SA5, "HP Smart Array" }, 317 { 0x103C, 0x3233, CISS_BOARD_SA5, "HP Smart Array" }, 318 { 0x103C, 0x3234, CISS_BOARD_SA5, "HP Smart Array P400" }, 319 { 0x103C, 0x3235, CISS_BOARD_SA5, "HP Smart Array P400i" }, 320 { 0x103C, 0x3236, CISS_BOARD_SA5, "HP Smart Array" }, 321 { 0x103C, 0x3237, CISS_BOARD_SA5, "HP Smart Array E500" }, 322 { 0x103C, 0x3238, CISS_BOARD_SA5, "HP Smart Array" }, 323 { 0x103C, 0x3239, CISS_BOARD_SA5, "HP Smart Array" }, 324 { 0x103C, 0x323A, CISS_BOARD_SA5, "HP Smart Array" }, 325 { 0x103C, 0x323B, CISS_BOARD_SA5, "HP Smart Array" }, 326 { 0x103C, 0x323C, CISS_BOARD_SA5, "HP Smart Array" }, 327 { 0x103C, 0x323D, CISS_BOARD_SA5, "HP Smart Array P700m" }, 328 { 0x103C, 0x3241, CISS_BOARD_SA5, "HP Smart Array P212" }, 329 { 0x103C, 0x3243, CISS_BOARD_SA5, "HP Smart Array P410" }, 330 { 0x103C, 0x3245, CISS_BOARD_SA5, "HP Smart Array P410i" }, 331 { 0x103C, 0x3247, CISS_BOARD_SA5, "HP Smart Array P411" }, 332 { 0x103C, 0x3249, CISS_BOARD_SA5, "HP Smart Array P812" }, 333 { 0x103C, 0x324A, CISS_BOARD_SA5, "HP Smart Array P712m" }, 334 { 0x103C, 0x324B, CISS_BOARD_SA5, "HP Smart Array" }, 335 { 0x103C, 0x3350, CISS_BOARD_SA5, "HP Smart Array P222" }, 336 { 0x103C, 0x3351, CISS_BOARD_SA5, "HP Smart Array P420" }, 337 { 0x103C, 0x3352, CISS_BOARD_SA5, "HP Smart Array P421" }, 338 { 0x103C, 0x3353, CISS_BOARD_SA5, "HP Smart Array P822" }, 339 { 0x103C, 0x3354, CISS_BOARD_SA5, "HP Smart Array P420i" }, 340 { 0x103C, 0x3355, CISS_BOARD_SA5, "HP Smart Array P220i" }, 341 { 0x103C, 0x3356, CISS_BOARD_SA5, "HP Smart Array P721m" }, 342 { 0x103C, 0x1920, CISS_BOARD_SA5, "HP Smart Array P430i" }, 343 { 0x103C, 0x1921, CISS_BOARD_SA5, "HP Smart Array P830i" }, 344 { 0x103C, 0x1922, CISS_BOARD_SA5, "HP Smart Array P430" }, 345 { 0x103C, 0x1923, CISS_BOARD_SA5, "HP Smart Array P431" }, 346 { 0x103C, 0x1924, CISS_BOARD_SA5, "HP Smart Array P830" }, 347 { 0x103C, 0x1926, CISS_BOARD_SA5, "HP Smart Array P731m" }, 348 { 0x103C, 0x1928, CISS_BOARD_SA5, "HP Smart Array P230i" }, 349 { 0x103C, 0x1929, CISS_BOARD_SA5, "HP Smart Array P530" }, 350 { 0x103C, 0x192A, CISS_BOARD_SA5, "HP Smart Array P531" }, 351 { 0x103C, 0x21BD, CISS_BOARD_SA5, "HP Smart Array P244br" }, 352 { 0x103C, 0x21BE, CISS_BOARD_SA5, "HP Smart Array P741m" }, 353 { 0x103C, 0x21BF, CISS_BOARD_SA5, "HP Smart Array H240ar" }, 354 { 0x103C, 0x21C0, CISS_BOARD_SA5, "HP Smart Array P440ar" }, 355 { 0x103C, 0x21C1, CISS_BOARD_SA5, "HP Smart Array P840ar" }, 356 { 0x103C, 0x21C2, CISS_BOARD_SA5, "HP Smart Array P440" }, 357 { 0x103C, 0x21C3, CISS_BOARD_SA5, "HP Smart Array P441" }, 358 { 0x103C, 0x21C5, CISS_BOARD_SA5, "HP Smart Array P841" }, 359 { 0x103C, 0x21C6, CISS_BOARD_SA5, "HP Smart Array H244br" }, 360 { 0x103C, 0x21C7, CISS_BOARD_SA5, "HP Smart Array H240" }, 361 { 0x103C, 0x21C8, CISS_BOARD_SA5, "HP Smart Array H241" }, 362 { 0x103C, 0x21CA, CISS_BOARD_SA5, "HP Smart Array P246br" }, 363 { 0x103C, 0x21CB, CISS_BOARD_SA5, "HP Smart Array P840" }, 364 { 0x103C, 0x21CC, CISS_BOARD_SA5, "HP Smart Array P542d" }, 365 { 0x103C, 0x21CD, CISS_BOARD_SA5, "HP Smart Array P240nr" }, 366 { 0x103C, 0x21CE, CISS_BOARD_SA5, "HP Smart Array H240nr" }, 367 { 0, 0, 0, NULL } 368 }; 369 370 static devclass_t ciss_devclass; 371 DRIVER_MODULE(ciss, pci, ciss_pci_driver, ciss_devclass, 0, 0); 372 MODULE_PNP_INFO("U16:vendor;U16:device;", pci, ciss, ciss_vendor_data, 373 nitems(ciss_vendor_data) - 1); 374 MODULE_DEPEND(ciss, cam, 1, 1, 1); 375 MODULE_DEPEND(ciss, pci, 1, 1, 1); 376 377 /************************************************************************ 378 * Find a match for the device in our list of known adapters. 379 */ 380 static int 381 ciss_lookup(device_t dev) 382 { 383 int i; 384 385 for (i = 0; ciss_vendor_data[i].desc != NULL; i++) 386 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) && 387 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) { 388 return(i); 389 } 390 return(-1); 391 } 392 393 /************************************************************************ 394 * Match a known CISS adapter. 395 */ 396 static int 397 ciss_probe(device_t dev) 398 { 399 int i; 400 401 i = ciss_lookup(dev); 402 if (i != -1) { 403 device_set_desc(dev, ciss_vendor_data[i].desc); 404 return(BUS_PROBE_DEFAULT); 405 } 406 return(ENOENT); 407 } 408 409 /************************************************************************ 410 * Attach the driver to this adapter. 411 */ 412 static int 413 ciss_attach(device_t dev) 414 { 415 struct ciss_softc *sc; 416 int error; 417 418 debug_called(1); 419 420 #ifdef CISS_DEBUG 421 /* print structure/union sizes */ 422 debug_struct(ciss_command); 423 debug_struct(ciss_header); 424 debug_union(ciss_device_address); 425 debug_struct(ciss_cdb); 426 debug_struct(ciss_report_cdb); 427 debug_struct(ciss_notify_cdb); 428 debug_struct(ciss_notify); 429 debug_struct(ciss_message_cdb); 430 debug_struct(ciss_error_info_pointer); 431 debug_struct(ciss_error_info); 432 debug_struct(ciss_sg_entry); 433 debug_struct(ciss_config_table); 434 debug_struct(ciss_bmic_cdb); 435 debug_struct(ciss_bmic_id_ldrive); 436 debug_struct(ciss_bmic_id_lstatus); 437 debug_struct(ciss_bmic_id_table); 438 debug_struct(ciss_bmic_id_pdrive); 439 debug_struct(ciss_bmic_blink_pdrive); 440 debug_struct(ciss_bmic_flush_cache); 441 debug_const(CISS_MAX_REQUESTS); 442 debug_const(CISS_MAX_LOGICAL); 443 debug_const(CISS_INTERRUPT_COALESCE_DELAY); 444 debug_const(CISS_INTERRUPT_COALESCE_COUNT); 445 debug_const(CISS_COMMAND_ALLOC_SIZE); 446 debug_const(CISS_COMMAND_SG_LENGTH); 447 448 debug_type(cciss_pci_info_struct); 449 debug_type(cciss_coalint_struct); 450 debug_type(cciss_coalint_struct); 451 debug_type(NodeName_type); 452 debug_type(NodeName_type); 453 debug_type(Heartbeat_type); 454 debug_type(BusTypes_type); 455 debug_type(FirmwareVer_type); 456 debug_type(DriverVer_type); 457 debug_type(IOCTL_Command_struct); 458 #endif 459 460 sc = device_get_softc(dev); 461 sc->ciss_dev = dev; 462 mtx_init(&sc->ciss_mtx, "cissmtx", NULL, MTX_DEF); 463 callout_init_mtx(&sc->ciss_periodic, &sc->ciss_mtx, 0); 464 465 /* 466 * Do PCI-specific init. 467 */ 468 if ((error = ciss_init_pci(sc)) != 0) 469 goto out; 470 471 /* 472 * Initialise driver queues. 473 */ 474 ciss_initq_free(sc); 475 ciss_initq_notify(sc); 476 477 /* 478 * Initialize device sysctls. 479 */ 480 ciss_init_sysctl(sc); 481 482 /* 483 * Initialise command/request pool. 484 */ 485 if ((error = ciss_init_requests(sc)) != 0) 486 goto out; 487 488 /* 489 * Get adapter information. 490 */ 491 if ((error = ciss_identify_adapter(sc)) != 0) 492 goto out; 493 494 /* 495 * Find all the physical devices. 496 */ 497 if ((error = ciss_init_physical(sc)) != 0) 498 goto out; 499 500 /* 501 * Build our private table of logical devices. 502 */ 503 if ((error = ciss_init_logical(sc)) != 0) 504 goto out; 505 506 /* 507 * Enable interrupts so that the CAM scan can complete. 508 */ 509 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc); 510 511 /* 512 * Initialise the CAM interface. 513 */ 514 if ((error = ciss_cam_init(sc)) != 0) 515 goto out; 516 517 /* 518 * Start the heartbeat routine and event chain. 519 */ 520 ciss_periodic(sc); 521 522 /* 523 * Create the control device. 524 */ 525 sc->ciss_dev_t = make_dev(&ciss_cdevsw, device_get_unit(sc->ciss_dev), 526 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR, 527 "ciss%d", device_get_unit(sc->ciss_dev)); 528 sc->ciss_dev_t->si_drv1 = sc; 529 530 /* 531 * The adapter is running; synchronous commands can now sleep 532 * waiting for an interrupt to signal completion. 533 */ 534 sc->ciss_flags |= CISS_FLAG_RUNNING; 535 536 ciss_spawn_notify_thread(sc); 537 538 error = 0; 539 out: 540 if (error != 0) { 541 /* ciss_free() expects the mutex to be held */ 542 mtx_lock(&sc->ciss_mtx); 543 ciss_free(sc); 544 } 545 return(error); 546 } 547 548 /************************************************************************ 549 * Detach the driver from this adapter. 550 */ 551 static int 552 ciss_detach(device_t dev) 553 { 554 struct ciss_softc *sc = device_get_softc(dev); 555 556 debug_called(1); 557 558 mtx_lock(&sc->ciss_mtx); 559 if (sc->ciss_flags & CISS_FLAG_CONTROL_OPEN) { 560 mtx_unlock(&sc->ciss_mtx); 561 return (EBUSY); 562 } 563 564 /* flush adapter cache */ 565 ciss_flush_adapter(sc); 566 567 /* release all resources. The mutex is released and freed here too. */ 568 ciss_free(sc); 569 570 return(0); 571 } 572 573 /************************************************************************ 574 * Prepare adapter for system shutdown. 575 */ 576 static int 577 ciss_shutdown(device_t dev) 578 { 579 struct ciss_softc *sc = device_get_softc(dev); 580 581 debug_called(1); 582 583 mtx_lock(&sc->ciss_mtx); 584 /* flush adapter cache */ 585 ciss_flush_adapter(sc); 586 587 if (sc->ciss_soft_reset) 588 ciss_soft_reset(sc); 589 mtx_unlock(&sc->ciss_mtx); 590 591 return(0); 592 } 593 594 static void 595 ciss_init_sysctl(struct ciss_softc *sc) 596 { 597 598 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->ciss_dev), 599 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ciss_dev)), 600 OID_AUTO, "soft_reset", CTLFLAG_RW, &sc->ciss_soft_reset, 0, ""); 601 } 602 603 /************************************************************************ 604 * Perform PCI-specific attachment actions. 605 */ 606 static int 607 ciss_init_pci(struct ciss_softc *sc) 608 { 609 uintptr_t cbase, csize, cofs; 610 uint32_t method, supported_methods; 611 int error, sqmask, i; 612 void *intr; 613 614 debug_called(1); 615 616 /* 617 * Work out adapter type. 618 */ 619 i = ciss_lookup(sc->ciss_dev); 620 if (i < 0) { 621 ciss_printf(sc, "unknown adapter type\n"); 622 return (ENXIO); 623 } 624 625 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) { 626 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5; 627 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) { 628 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5B; 629 } else { 630 /* 631 * XXX Big hammer, masks/unmasks all possible interrupts. This should 632 * work on all hardware variants. Need to add code to handle the 633 * "controller crashed" interrupt bit that this unmasks. 634 */ 635 sqmask = ~0; 636 } 637 638 /* 639 * Allocate register window first (we need this to find the config 640 * struct). 641 */ 642 error = ENXIO; 643 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS; 644 if ((sc->ciss_regs_resource = 645 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 646 &sc->ciss_regs_rid, RF_ACTIVE)) == NULL) { 647 ciss_printf(sc, "can't allocate register window\n"); 648 return(ENXIO); 649 } 650 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource); 651 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource); 652 653 /* 654 * Find the BAR holding the config structure. If it's not the one 655 * we already mapped for registers, map it too. 656 */ 657 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff; 658 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) { 659 if ((sc->ciss_cfg_resource = 660 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 661 &sc->ciss_cfg_rid, RF_ACTIVE)) == NULL) { 662 ciss_printf(sc, "can't allocate config window\n"); 663 return(ENXIO); 664 } 665 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource); 666 csize = rman_get_end(sc->ciss_cfg_resource) - 667 rman_get_start(sc->ciss_cfg_resource) + 1; 668 } else { 669 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource); 670 csize = rman_get_end(sc->ciss_regs_resource) - 671 rman_get_start(sc->ciss_regs_resource) + 1; 672 } 673 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF); 674 675 /* 676 * Use the base/size/offset values we just calculated to 677 * sanity-check the config structure. If it's OK, point to it. 678 */ 679 if ((cofs + sizeof(struct ciss_config_table)) > csize) { 680 ciss_printf(sc, "config table outside window\n"); 681 return(ENXIO); 682 } 683 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs); 684 debug(1, "config struct at %p", sc->ciss_cfg); 685 686 /* 687 * Calculate the number of request structures/commands we are 688 * going to provide for this adapter. 689 */ 690 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands); 691 692 /* 693 * Validate the config structure. If we supported other transport 694 * methods, we could select amongst them at this point in time. 695 */ 696 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) { 697 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n", 698 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1], 699 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]); 700 return(ENXIO); 701 } 702 703 /* 704 * Select the mode of operation, prefer Performant. 705 */ 706 if (!(sc->ciss_cfg->supported_methods & 707 (CISS_TRANSPORT_METHOD_SIMPLE | CISS_TRANSPORT_METHOD_PERF))) { 708 ciss_printf(sc, "No supported transport layers: 0x%x\n", 709 sc->ciss_cfg->supported_methods); 710 } 711 712 switch (ciss_force_transport) { 713 case 1: 714 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE; 715 break; 716 case 2: 717 supported_methods = CISS_TRANSPORT_METHOD_PERF; 718 break; 719 default: 720 /* 721 * Override the capabilities of the BOARD and specify SIMPLE 722 * MODE 723 */ 724 if (ciss_vendor_data[i].flags & CISS_BOARD_SIMPLE) 725 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE; 726 else 727 supported_methods = sc->ciss_cfg->supported_methods; 728 break; 729 } 730 731 setup: 732 if ((supported_methods & CISS_TRANSPORT_METHOD_PERF) != 0) { 733 method = CISS_TRANSPORT_METHOD_PERF; 734 sc->ciss_perf = (struct ciss_perf_config *)(cbase + cofs + 735 sc->ciss_cfg->transport_offset); 736 if (ciss_init_perf(sc)) { 737 supported_methods &= ~method; 738 goto setup; 739 } 740 } else if (supported_methods & CISS_TRANSPORT_METHOD_SIMPLE) { 741 method = CISS_TRANSPORT_METHOD_SIMPLE; 742 } else { 743 ciss_printf(sc, "No supported transport methods: 0x%x\n", 744 sc->ciss_cfg->supported_methods); 745 return(ENXIO); 746 } 747 748 /* 749 * Tell it we're using the low 4GB of RAM. Set the default interrupt 750 * coalescing options. 751 */ 752 sc->ciss_cfg->requested_method = method; 753 sc->ciss_cfg->command_physlimit = 0; 754 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY; 755 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT; 756 757 #ifdef __i386__ 758 sc->ciss_cfg->host_driver |= CISS_DRIVER_SCSI_PREFETCH; 759 #endif 760 761 if (ciss_update_config(sc)) { 762 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n", 763 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR)); 764 return(ENXIO); 765 } 766 if ((sc->ciss_cfg->active_method & method) == 0) { 767 supported_methods &= ~method; 768 if (supported_methods == 0) { 769 ciss_printf(sc, "adapter refuses to go into available transports " 770 "mode (0x%x, 0x%x)\n", supported_methods, 771 sc->ciss_cfg->active_method); 772 return(ENXIO); 773 } else 774 goto setup; 775 } 776 777 /* 778 * Wait for the adapter to come ready. 779 */ 780 if ((error = ciss_wait_adapter(sc)) != 0) 781 return(error); 782 783 /* Prepare to possibly use MSIX and/or PERFORMANT interrupts. Normal 784 * interrupts have a rid of 0, this will be overridden if MSIX is used. 785 */ 786 sc->ciss_irq_rid[0] = 0; 787 if (method == CISS_TRANSPORT_METHOD_PERF) { 788 ciss_printf(sc, "PERFORMANT Transport\n"); 789 if ((ciss_force_interrupt != 1) && (ciss_setup_msix(sc) == 0)) { 790 intr = ciss_perf_msi_intr; 791 } else { 792 intr = ciss_perf_intr; 793 } 794 /* XXX The docs say that the 0x01 bit is only for SAS controllers. 795 * Unfortunately, there is no good way to know if this is a SAS 796 * controller. Hopefully enabling this bit universally will work OK. 797 * It seems to work fine for SA6i controllers. 798 */ 799 sc->ciss_interrupt_mask = CISS_TL_PERF_INTR_OPQ | CISS_TL_PERF_INTR_MSI; 800 801 } else { 802 ciss_printf(sc, "SIMPLE Transport\n"); 803 /* MSIX doesn't seem to work in SIMPLE mode, only enable if it forced */ 804 if (ciss_force_interrupt == 2) 805 /* If this fails, we automatically revert to INTx */ 806 ciss_setup_msix(sc); 807 sc->ciss_perf = NULL; 808 intr = ciss_intr; 809 sc->ciss_interrupt_mask = sqmask; 810 } 811 812 /* 813 * Turn off interrupts before we go routing anything. 814 */ 815 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 816 817 /* 818 * Allocate and set up our interrupt. 819 */ 820 if ((sc->ciss_irq_resource = 821 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid[0], 822 RF_ACTIVE | RF_SHAREABLE)) == NULL) { 823 ciss_printf(sc, "can't allocate interrupt\n"); 824 return(ENXIO); 825 } 826 827 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource, 828 INTR_TYPE_CAM|INTR_MPSAFE, NULL, intr, sc, 829 &sc->ciss_intr)) { 830 ciss_printf(sc, "can't set up interrupt\n"); 831 return(ENXIO); 832 } 833 834 /* 835 * Allocate the parent bus DMA tag appropriate for our PCI 836 * interface. 837 * 838 * Note that "simple" adapters can only address within a 32-bit 839 * span. 840 */ 841 if (bus_dma_tag_create(bus_get_dma_tag(sc->ciss_dev),/* PCI parent */ 842 1, 0, /* alignment, boundary */ 843 BUS_SPACE_MAXADDR, /* lowaddr */ 844 BUS_SPACE_MAXADDR, /* highaddr */ 845 NULL, NULL, /* filter, filterarg */ 846 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 847 BUS_SPACE_UNRESTRICTED, /* nsegments */ 848 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 849 0, /* flags */ 850 NULL, NULL, /* lockfunc, lockarg */ 851 &sc->ciss_parent_dmat)) { 852 ciss_printf(sc, "can't allocate parent DMA tag\n"); 853 return(ENOMEM); 854 } 855 856 /* 857 * Create DMA tag for mapping buffers into adapter-addressable 858 * space. 859 */ 860 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 861 1, 0, /* alignment, boundary */ 862 BUS_SPACE_MAXADDR, /* lowaddr */ 863 BUS_SPACE_MAXADDR, /* highaddr */ 864 NULL, NULL, /* filter, filterarg */ 865 (CISS_MAX_SG_ELEMENTS - 1) * PAGE_SIZE, /* maxsize */ 866 CISS_MAX_SG_ELEMENTS, /* nsegments */ 867 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 868 BUS_DMA_ALLOCNOW, /* flags */ 869 busdma_lock_mutex, &sc->ciss_mtx, /* lockfunc, lockarg */ 870 &sc->ciss_buffer_dmat)) { 871 ciss_printf(sc, "can't allocate buffer DMA tag\n"); 872 return(ENOMEM); 873 } 874 return(0); 875 } 876 877 /************************************************************************ 878 * Setup MSI/MSIX operation (Performant only) 879 * Four interrupts are available, but we only use 1 right now. If MSI-X 880 * isn't avaialble, try using MSI instead. 881 */ 882 static int 883 ciss_setup_msix(struct ciss_softc *sc) 884 { 885 int val, i; 886 887 /* Weed out devices that don't actually support MSI */ 888 i = ciss_lookup(sc->ciss_dev); 889 if (ciss_vendor_data[i].flags & CISS_BOARD_NOMSI) 890 return (EINVAL); 891 892 /* 893 * Only need to use the minimum number of MSI vectors, as the driver 894 * doesn't support directed MSIX interrupts. 895 */ 896 val = pci_msix_count(sc->ciss_dev); 897 if (val < CISS_MSI_COUNT) { 898 val = pci_msi_count(sc->ciss_dev); 899 device_printf(sc->ciss_dev, "got %d MSI messages]\n", val); 900 if (val < CISS_MSI_COUNT) 901 return (EINVAL); 902 } 903 val = MIN(val, CISS_MSI_COUNT); 904 if (pci_alloc_msix(sc->ciss_dev, &val) != 0) { 905 if (pci_alloc_msi(sc->ciss_dev, &val) != 0) 906 return (EINVAL); 907 } 908 909 sc->ciss_msi = val; 910 if (bootverbose) 911 ciss_printf(sc, "Using %d MSIX interrupt%s\n", val, 912 (val != 1) ? "s" : ""); 913 914 for (i = 0; i < val; i++) 915 sc->ciss_irq_rid[i] = i + 1; 916 917 return (0); 918 919 } 920 921 /************************************************************************ 922 * Setup the Performant structures. 923 */ 924 static int 925 ciss_init_perf(struct ciss_softc *sc) 926 { 927 struct ciss_perf_config *pc = sc->ciss_perf; 928 int reply_size; 929 930 /* 931 * Create the DMA tag for the reply queue. 932 */ 933 reply_size = sizeof(uint64_t) * sc->ciss_max_requests; 934 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 935 1, 0, /* alignment, boundary */ 936 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 937 BUS_SPACE_MAXADDR, /* highaddr */ 938 NULL, NULL, /* filter, filterarg */ 939 reply_size, 1, /* maxsize, nsegments */ 940 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 941 0, /* flags */ 942 NULL, NULL, /* lockfunc, lockarg */ 943 &sc->ciss_reply_dmat)) { 944 ciss_printf(sc, "can't allocate reply DMA tag\n"); 945 return(ENOMEM); 946 } 947 /* 948 * Allocate memory and make it available for DMA. 949 */ 950 if (bus_dmamem_alloc(sc->ciss_reply_dmat, (void **)&sc->ciss_reply, 951 BUS_DMA_NOWAIT, &sc->ciss_reply_map)) { 952 ciss_printf(sc, "can't allocate reply memory\n"); 953 return(ENOMEM); 954 } 955 bus_dmamap_load(sc->ciss_reply_dmat, sc->ciss_reply_map, sc->ciss_reply, 956 reply_size, ciss_command_map_helper, &sc->ciss_reply_phys, 0); 957 bzero(sc->ciss_reply, reply_size); 958 959 sc->ciss_cycle = 0x1; 960 sc->ciss_rqidx = 0; 961 962 /* 963 * Preload the fetch table with common command sizes. This allows the 964 * hardware to not waste bus cycles for typical i/o commands, but also not 965 * tax the driver to be too exact in choosing sizes. The table is optimized 966 * for page-aligned i/o's, but since most i/o comes from the various pagers, 967 * it's a reasonable assumption to make. 968 */ 969 pc->fetch_count[CISS_SG_FETCH_NONE] = (sizeof(struct ciss_command) + 15) / 16; 970 pc->fetch_count[CISS_SG_FETCH_1] = 971 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 1 + 15) / 16; 972 pc->fetch_count[CISS_SG_FETCH_2] = 973 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 2 + 15) / 16; 974 pc->fetch_count[CISS_SG_FETCH_4] = 975 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 4 + 15) / 16; 976 pc->fetch_count[CISS_SG_FETCH_8] = 977 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 8 + 15) / 16; 978 pc->fetch_count[CISS_SG_FETCH_16] = 979 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 16 + 15) / 16; 980 pc->fetch_count[CISS_SG_FETCH_32] = 981 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 32 + 15) / 16; 982 pc->fetch_count[CISS_SG_FETCH_MAX] = (CISS_COMMAND_ALLOC_SIZE + 15) / 16; 983 984 pc->rq_size = sc->ciss_max_requests; /* XXX less than the card supports? */ 985 pc->rq_count = 1; /* XXX Hardcode for a single queue */ 986 pc->rq_bank_hi = 0; 987 pc->rq_bank_lo = 0; 988 pc->rq[0].rq_addr_hi = 0x0; 989 pc->rq[0].rq_addr_lo = sc->ciss_reply_phys; 990 991 return(0); 992 } 993 994 /************************************************************************ 995 * Wait for the adapter to come ready. 996 */ 997 static int 998 ciss_wait_adapter(struct ciss_softc *sc) 999 { 1000 int i; 1001 1002 debug_called(1); 1003 1004 /* 1005 * Wait for the adapter to come ready. 1006 */ 1007 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) { 1008 ciss_printf(sc, "waiting for adapter to come ready...\n"); 1009 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) { 1010 DELAY(1000000); /* one second */ 1011 if (i > 30) { 1012 ciss_printf(sc, "timed out waiting for adapter to come ready\n"); 1013 return(EIO); 1014 } 1015 } 1016 } 1017 return(0); 1018 } 1019 1020 /************************************************************************ 1021 * Flush the adapter cache. 1022 */ 1023 static int 1024 ciss_flush_adapter(struct ciss_softc *sc) 1025 { 1026 struct ciss_request *cr; 1027 struct ciss_bmic_flush_cache *cbfc; 1028 int error, command_status; 1029 1030 debug_called(1); 1031 1032 cr = NULL; 1033 cbfc = NULL; 1034 1035 /* 1036 * Build a BMIC request to flush the cache. We don't disable 1037 * it, as we may be going to do more I/O (eg. we are emulating 1038 * the Synchronise Cache command). 1039 */ 1040 if ((cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 1041 error = ENOMEM; 1042 goto out; 1043 } 1044 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE, 1045 (void **)&cbfc, sizeof(*cbfc))) != 0) 1046 goto out; 1047 1048 /* 1049 * Submit the request and wait for it to complete. 1050 */ 1051 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1052 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error); 1053 goto out; 1054 } 1055 1056 /* 1057 * Check response. 1058 */ 1059 ciss_report_request(cr, &command_status, NULL); 1060 switch(command_status) { 1061 case CISS_CMD_STATUS_SUCCESS: 1062 break; 1063 default: 1064 ciss_printf(sc, "error flushing cache (%s)\n", 1065 ciss_name_command_status(command_status)); 1066 error = EIO; 1067 goto out; 1068 } 1069 1070 out: 1071 if (cbfc != NULL) 1072 free(cbfc, CISS_MALLOC_CLASS); 1073 if (cr != NULL) 1074 ciss_release_request(cr); 1075 return(error); 1076 } 1077 1078 static void 1079 ciss_soft_reset(struct ciss_softc *sc) 1080 { 1081 struct ciss_request *cr = NULL; 1082 struct ciss_command *cc; 1083 int i, error = 0; 1084 1085 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1086 /* only reset proxy controllers */ 1087 if (sc->ciss_controllers[i].physical.bus == 0) 1088 continue; 1089 1090 if ((error = ciss_get_request(sc, &cr)) != 0) 1091 break; 1092 1093 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_SOFT_RESET, 1094 NULL, 0)) != 0) 1095 break; 1096 1097 cc = cr->cr_cc; 1098 cc->header.address = sc->ciss_controllers[i]; 1099 1100 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) 1101 break; 1102 1103 ciss_release_request(cr); 1104 } 1105 1106 if (error) 1107 ciss_printf(sc, "error resetting controller (%d)\n", error); 1108 1109 if (cr != NULL) 1110 ciss_release_request(cr); 1111 } 1112 1113 /************************************************************************ 1114 * Allocate memory for the adapter command structures, initialise 1115 * the request structures. 1116 * 1117 * Note that the entire set of commands are allocated in a single 1118 * contiguous slab. 1119 */ 1120 static int 1121 ciss_init_requests(struct ciss_softc *sc) 1122 { 1123 struct ciss_request *cr; 1124 int i; 1125 1126 debug_called(1); 1127 1128 if (bootverbose) 1129 ciss_printf(sc, "using %d of %d available commands\n", 1130 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands); 1131 1132 /* 1133 * Create the DMA tag for commands. 1134 */ 1135 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 1136 32, 0, /* alignment, boundary */ 1137 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 1138 BUS_SPACE_MAXADDR, /* highaddr */ 1139 NULL, NULL, /* filter, filterarg */ 1140 CISS_COMMAND_ALLOC_SIZE * 1141 sc->ciss_max_requests, 1, /* maxsize, nsegments */ 1142 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 1143 0, /* flags */ 1144 NULL, NULL, /* lockfunc, lockarg */ 1145 &sc->ciss_command_dmat)) { 1146 ciss_printf(sc, "can't allocate command DMA tag\n"); 1147 return(ENOMEM); 1148 } 1149 /* 1150 * Allocate memory and make it available for DMA. 1151 */ 1152 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command, 1153 BUS_DMA_NOWAIT, &sc->ciss_command_map)) { 1154 ciss_printf(sc, "can't allocate command memory\n"); 1155 return(ENOMEM); 1156 } 1157 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map,sc->ciss_command, 1158 CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests, 1159 ciss_command_map_helper, &sc->ciss_command_phys, 0); 1160 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests); 1161 1162 /* 1163 * Set up the request and command structures, push requests onto 1164 * the free queue. 1165 */ 1166 for (i = 1; i < sc->ciss_max_requests; i++) { 1167 cr = &sc->ciss_request[i]; 1168 cr->cr_sc = sc; 1169 cr->cr_tag = i; 1170 cr->cr_cc = (struct ciss_command *)((uintptr_t)sc->ciss_command + 1171 CISS_COMMAND_ALLOC_SIZE * i); 1172 cr->cr_ccphys = sc->ciss_command_phys + CISS_COMMAND_ALLOC_SIZE * i; 1173 bus_dmamap_create(sc->ciss_buffer_dmat, 0, &cr->cr_datamap); 1174 ciss_enqueue_free(cr); 1175 } 1176 return(0); 1177 } 1178 1179 static void 1180 ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1181 { 1182 uint32_t *addr; 1183 1184 addr = arg; 1185 *addr = segs[0].ds_addr; 1186 } 1187 1188 /************************************************************************ 1189 * Identify the adapter, print some information about it. 1190 */ 1191 static int 1192 ciss_identify_adapter(struct ciss_softc *sc) 1193 { 1194 struct ciss_request *cr; 1195 int error, command_status; 1196 1197 debug_called(1); 1198 1199 cr = NULL; 1200 1201 /* 1202 * Get a request, allocate storage for the adapter data. 1203 */ 1204 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR, 1205 (void **)&sc->ciss_id, 1206 sizeof(*sc->ciss_id))) != 0) 1207 goto out; 1208 1209 /* 1210 * Submit the request and wait for it to complete. 1211 */ 1212 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1213 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error); 1214 goto out; 1215 } 1216 1217 /* 1218 * Check response. 1219 */ 1220 ciss_report_request(cr, &command_status, NULL); 1221 switch(command_status) { 1222 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1223 break; 1224 case CISS_CMD_STATUS_DATA_UNDERRUN: 1225 case CISS_CMD_STATUS_DATA_OVERRUN: 1226 ciss_printf(sc, "data over/underrun reading adapter information\n"); 1227 default: 1228 ciss_printf(sc, "error reading adapter information (%s)\n", 1229 ciss_name_command_status(command_status)); 1230 error = EIO; 1231 goto out; 1232 } 1233 1234 /* sanity-check reply */ 1235 if (!(sc->ciss_id->controller_flags & CONTROLLER_FLAGS_BIG_MAP_SUPPORT)) { 1236 ciss_printf(sc, "adapter does not support BIG_MAP\n"); 1237 error = ENXIO; 1238 goto out; 1239 } 1240 1241 #if 0 1242 /* XXX later revisions may not need this */ 1243 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH; 1244 #endif 1245 1246 /* XXX only really required for old 5300 adapters? */ 1247 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT; 1248 1249 /* 1250 * Earlier controller specs do not contain these config 1251 * entries, so assume that a 0 means its old and assign 1252 * these values to the defaults that were established 1253 * when this driver was developed for them 1254 */ 1255 if (sc->ciss_cfg->max_logical_supported == 0) 1256 sc->ciss_cfg->max_logical_supported = CISS_MAX_LOGICAL; 1257 if (sc->ciss_cfg->max_physical_supported == 0) 1258 sc->ciss_cfg->max_physical_supported = CISS_MAX_PHYSICAL; 1259 /* print information */ 1260 if (bootverbose) { 1261 ciss_printf(sc, " %d logical drive%s configured\n", 1262 sc->ciss_id->configured_logical_drives, 1263 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s"); 1264 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision); 1265 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_chip_count); 1266 1267 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature); 1268 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence); 1269 ciss_printf(sc, " supported I/O methods 0x%b\n", 1270 sc->ciss_cfg->supported_methods, 1271 "\20\1READY\2simple\3performant\4MEMQ\n"); 1272 ciss_printf(sc, " active I/O method 0x%b\n", 1273 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n"); 1274 ciss_printf(sc, " 4G page base 0x%08x\n", 1275 sc->ciss_cfg->command_physlimit); 1276 ciss_printf(sc, " interrupt coalesce delay %dus\n", 1277 sc->ciss_cfg->interrupt_coalesce_delay); 1278 ciss_printf(sc, " interrupt coalesce count %d\n", 1279 sc->ciss_cfg->interrupt_coalesce_count); 1280 ciss_printf(sc, " max outstanding commands %d\n", 1281 sc->ciss_cfg->max_outstanding_commands); 1282 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types, 1283 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n"); 1284 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name); 1285 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat); 1286 ciss_printf(sc, " max logical volumes: %d\n", sc->ciss_cfg->max_logical_supported); 1287 ciss_printf(sc, " max physical disks supported: %d\n", sc->ciss_cfg->max_physical_supported); 1288 ciss_printf(sc, " max physical disks per logical volume: %d\n", sc->ciss_cfg->max_physical_per_logical); 1289 ciss_printf(sc, " JBOD Support is %s\n", (sc->ciss_id->uiYetMoreControllerFlags & YMORE_CONTROLLER_FLAGS_JBOD_SUPPORTED) ? 1290 "Available" : "Unavailable"); 1291 ciss_printf(sc, " JBOD Mode is %s\n", (sc->ciss_id->PowerUPNvramFlags & PWR_UP_FLAG_JBOD_ENABLED) ? 1292 "Enabled" : "Disabled"); 1293 } 1294 1295 out: 1296 if (error) { 1297 if (sc->ciss_id != NULL) { 1298 free(sc->ciss_id, CISS_MALLOC_CLASS); 1299 sc->ciss_id = NULL; 1300 } 1301 } 1302 if (cr != NULL) 1303 ciss_release_request(cr); 1304 return(error); 1305 } 1306 1307 /************************************************************************ 1308 * Helper routine for generating a list of logical and physical luns. 1309 */ 1310 static struct ciss_lun_report * 1311 ciss_report_luns(struct ciss_softc *sc, int opcode, int nunits) 1312 { 1313 struct ciss_request *cr; 1314 struct ciss_command *cc; 1315 struct ciss_report_cdb *crc; 1316 struct ciss_lun_report *cll; 1317 int command_status; 1318 int report_size; 1319 int error = 0; 1320 1321 debug_called(1); 1322 1323 cr = NULL; 1324 cll = NULL; 1325 1326 /* 1327 * Get a request, allocate storage for the address list. 1328 */ 1329 if ((error = ciss_get_request(sc, &cr)) != 0) 1330 goto out; 1331 report_size = sizeof(*cll) + nunits * sizeof(union ciss_device_address); 1332 if ((cll = malloc(report_size, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 1333 ciss_printf(sc, "can't allocate memory for lun report\n"); 1334 error = ENOMEM; 1335 goto out; 1336 } 1337 1338 /* 1339 * Build the Report Logical/Physical LUNs command. 1340 */ 1341 cc = cr->cr_cc; 1342 cr->cr_data = cll; 1343 cr->cr_length = report_size; 1344 cr->cr_flags = CISS_REQ_DATAIN; 1345 1346 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 1347 cc->header.address.physical.bus = 0; 1348 cc->header.address.physical.target = 0; 1349 cc->cdb.cdb_length = sizeof(*crc); 1350 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1351 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1352 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1353 cc->cdb.timeout = 30; /* XXX better suggestions? */ 1354 1355 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]); 1356 bzero(crc, sizeof(*crc)); 1357 crc->opcode = opcode; 1358 crc->length = htonl(report_size); /* big-endian field */ 1359 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */ 1360 1361 /* 1362 * Submit the request and wait for it to complete. (timeout 1363 * here should be much greater than above) 1364 */ 1365 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1366 ciss_printf(sc, "error sending %d LUN command (%d)\n", opcode, error); 1367 goto out; 1368 } 1369 1370 /* 1371 * Check response. Note that data over/underrun is OK. 1372 */ 1373 ciss_report_request(cr, &command_status, NULL); 1374 switch(command_status) { 1375 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1376 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */ 1377 break; 1378 case CISS_CMD_STATUS_DATA_OVERRUN: 1379 ciss_printf(sc, "WARNING: more units than driver limit (%d)\n", 1380 sc->ciss_cfg->max_logical_supported); 1381 break; 1382 default: 1383 ciss_printf(sc, "error detecting logical drive configuration (%s)\n", 1384 ciss_name_command_status(command_status)); 1385 error = EIO; 1386 goto out; 1387 } 1388 ciss_release_request(cr); 1389 cr = NULL; 1390 1391 out: 1392 if (cr != NULL) 1393 ciss_release_request(cr); 1394 if (error && cll != NULL) { 1395 free(cll, CISS_MALLOC_CLASS); 1396 cll = NULL; 1397 } 1398 return(cll); 1399 } 1400 1401 /************************************************************************ 1402 * Find logical drives on the adapter. 1403 */ 1404 static int 1405 ciss_init_logical(struct ciss_softc *sc) 1406 { 1407 struct ciss_lun_report *cll; 1408 int error = 0, i, j; 1409 int ndrives; 1410 1411 debug_called(1); 1412 1413 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 1414 sc->ciss_cfg->max_logical_supported); 1415 if (cll == NULL) { 1416 error = ENXIO; 1417 goto out; 1418 } 1419 1420 /* sanity-check reply */ 1421 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1422 if ((ndrives < 0) || (ndrives > sc->ciss_cfg->max_logical_supported)) { 1423 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n", 1424 ndrives, sc->ciss_cfg->max_logical_supported); 1425 error = ENXIO; 1426 goto out; 1427 } 1428 1429 /* 1430 * Save logical drive information. 1431 */ 1432 if (bootverbose) { 1433 ciss_printf(sc, "%d logical drive%s\n", 1434 ndrives, (ndrives > 1 || ndrives == 0) ? "s" : ""); 1435 } 1436 1437 sc->ciss_logical = 1438 malloc(sc->ciss_max_logical_bus * sizeof(struct ciss_ldrive *), 1439 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1440 if (sc->ciss_logical == NULL) { 1441 error = ENXIO; 1442 goto out; 1443 } 1444 1445 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1446 sc->ciss_logical[i] = 1447 malloc(sc->ciss_cfg->max_logical_supported * 1448 sizeof(struct ciss_ldrive), 1449 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1450 if (sc->ciss_logical[i] == NULL) { 1451 error = ENXIO; 1452 goto out; 1453 } 1454 1455 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) 1456 sc->ciss_logical[i][j].cl_status = CISS_LD_NONEXISTENT; 1457 } 1458 1459 for (i = 0; i < sc->ciss_cfg->max_logical_supported; i++) { 1460 if (i < ndrives) { 1461 struct ciss_ldrive *ld; 1462 int bus, target; 1463 1464 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 1465 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 1466 ld = &sc->ciss_logical[bus][target]; 1467 1468 ld->cl_address = cll->lun[i]; 1469 ld->cl_controller = &sc->ciss_controllers[bus]; 1470 if (ciss_identify_logical(sc, ld) != 0) 1471 continue; 1472 /* 1473 * If the drive has had media exchanged, we should bring it online. 1474 */ 1475 if (ld->cl_lstatus->media_exchanged) 1476 ciss_accept_media(sc, ld); 1477 } 1478 } 1479 1480 out: 1481 if (cll != NULL) 1482 free(cll, CISS_MALLOC_CLASS); 1483 return(error); 1484 } 1485 1486 static int 1487 ciss_init_physical(struct ciss_softc *sc) 1488 { 1489 struct ciss_lun_report *cll; 1490 int error = 0, i; 1491 int nphys; 1492 int bus; 1493 1494 debug_called(1); 1495 1496 bus = 0; 1497 1498 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 1499 sc->ciss_cfg->max_physical_supported); 1500 if (cll == NULL) { 1501 error = ENXIO; 1502 goto out; 1503 } 1504 1505 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1506 1507 if (bootverbose) { 1508 ciss_printf(sc, "%d physical device%s\n", 1509 nphys, (nphys > 1 || nphys == 0) ? "s" : ""); 1510 } 1511 1512 /* 1513 * Figure out the bus mapping. 1514 * Logical buses include both the local logical bus for local arrays and 1515 * proxy buses for remote arrays. Physical buses are numbered by the 1516 * controller and represent physical buses that hold physical devices. 1517 * We shift these bus numbers so that everything fits into a single flat 1518 * numbering space for CAM. Logical buses occupy the first 32 CAM bus 1519 * numbers, and the physical bus numbers are shifted to be above that. 1520 * This results in the various driver arrays being indexed as follows: 1521 * 1522 * ciss_controllers[] - indexed by logical bus 1523 * ciss_cam_sim[] - indexed by both logical and physical, with physical 1524 * being shifted by 32. 1525 * ciss_logical[][] - indexed by logical bus 1526 * ciss_physical[][] - indexed by physical bus 1527 * 1528 * XXX This is getting more and more hackish. CISS really doesn't play 1529 * well with a standard SCSI model; devices are addressed via magic 1530 * cookies, not via b/t/l addresses. Since there is no way to store 1531 * the cookie in the CAM device object, we have to keep these lookup 1532 * tables handy so that the devices can be found quickly at the cost 1533 * of wasting memory and having a convoluted lookup scheme. This 1534 * driver should probably be converted to block interface. 1535 */ 1536 /* 1537 * If the L2 and L3 SCSI addresses are 0, this signifies a proxy 1538 * controller. A proxy controller is another physical controller 1539 * behind the primary PCI controller. We need to know about this 1540 * so that BMIC commands can be properly targeted. There can be 1541 * proxy controllers attached to a single PCI controller, so 1542 * find the highest numbered one so the array can be properly 1543 * sized. 1544 */ 1545 sc->ciss_max_logical_bus = 1; 1546 for (i = 0; i < nphys; i++) { 1547 if (cll->lun[i].physical.extra_address == 0) { 1548 bus = cll->lun[i].physical.bus; 1549 sc->ciss_max_logical_bus = max(sc->ciss_max_logical_bus, bus) + 1; 1550 } else { 1551 bus = CISS_EXTRA_BUS2(cll->lun[i].physical.extra_address); 1552 sc->ciss_max_physical_bus = max(sc->ciss_max_physical_bus, bus); 1553 } 1554 } 1555 1556 sc->ciss_controllers = 1557 malloc(sc->ciss_max_logical_bus * sizeof (union ciss_device_address), 1558 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1559 1560 if (sc->ciss_controllers == NULL) { 1561 ciss_printf(sc, "Could not allocate memory for controller map\n"); 1562 error = ENOMEM; 1563 goto out; 1564 } 1565 1566 /* setup a map of controller addresses */ 1567 for (i = 0; i < nphys; i++) { 1568 if (cll->lun[i].physical.extra_address == 0) { 1569 sc->ciss_controllers[cll->lun[i].physical.bus] = cll->lun[i]; 1570 } 1571 } 1572 1573 sc->ciss_physical = 1574 malloc(sc->ciss_max_physical_bus * sizeof(struct ciss_pdrive *), 1575 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1576 if (sc->ciss_physical == NULL) { 1577 ciss_printf(sc, "Could not allocate memory for physical device map\n"); 1578 error = ENOMEM; 1579 goto out; 1580 } 1581 1582 for (i = 0; i < sc->ciss_max_physical_bus; i++) { 1583 sc->ciss_physical[i] = 1584 malloc(sizeof(struct ciss_pdrive) * CISS_MAX_PHYSTGT, 1585 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1586 if (sc->ciss_physical[i] == NULL) { 1587 ciss_printf(sc, "Could not allocate memory for target map\n"); 1588 error = ENOMEM; 1589 goto out; 1590 } 1591 } 1592 1593 ciss_filter_physical(sc, cll); 1594 1595 out: 1596 if (cll != NULL) 1597 free(cll, CISS_MALLOC_CLASS); 1598 1599 return(error); 1600 } 1601 1602 static int 1603 ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll) 1604 { 1605 u_int32_t ea; 1606 int i, nphys; 1607 int bus, target; 1608 1609 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1610 for (i = 0; i < nphys; i++) { 1611 if (cll->lun[i].physical.extra_address == 0) 1612 continue; 1613 1614 /* 1615 * Filter out devices that we don't want. Level 3 LUNs could 1616 * probably be supported, but the docs don't give enough of a 1617 * hint to know how. 1618 * 1619 * The mode field of the physical address is likely set to have 1620 * hard disks masked out. Honor it unless the user has overridden 1621 * us with the tunable. We also munge the inquiry data for these 1622 * disks so that they only show up as passthrough devices. Keeping 1623 * them visible in this fashion is useful for doing things like 1624 * flashing firmware. 1625 */ 1626 ea = cll->lun[i].physical.extra_address; 1627 if ((CISS_EXTRA_BUS3(ea) != 0) || (CISS_EXTRA_TARGET3(ea) != 0) || 1628 (CISS_EXTRA_MODE2(ea) == 0x3)) 1629 continue; 1630 if ((ciss_expose_hidden_physical == 0) && 1631 (cll->lun[i].physical.mode == CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL)) 1632 continue; 1633 1634 /* 1635 * Note: CISS firmware numbers physical busses starting at '1', not 1636 * '0'. This numbering is internal to the firmware and is only 1637 * used as a hint here. 1638 */ 1639 bus = CISS_EXTRA_BUS2(ea) - 1; 1640 target = CISS_EXTRA_TARGET2(ea); 1641 sc->ciss_physical[bus][target].cp_address = cll->lun[i]; 1642 sc->ciss_physical[bus][target].cp_online = 1; 1643 } 1644 1645 return (0); 1646 } 1647 1648 static int 1649 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1650 { 1651 struct ciss_request *cr; 1652 struct ciss_command *cc; 1653 struct scsi_inquiry *inq; 1654 int error; 1655 int command_status; 1656 1657 cr = NULL; 1658 1659 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry)); 1660 1661 if ((error = ciss_get_request(sc, &cr)) != 0) 1662 goto out; 1663 1664 cc = cr->cr_cc; 1665 cr->cr_data = &ld->cl_geometry; 1666 cr->cr_length = sizeof(ld->cl_geometry); 1667 cr->cr_flags = CISS_REQ_DATAIN; 1668 1669 cc->header.address = ld->cl_address; 1670 cc->cdb.cdb_length = 6; 1671 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1672 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1673 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1674 cc->cdb.timeout = 30; 1675 1676 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]); 1677 inq->opcode = INQUIRY; 1678 inq->byte2 = SI_EVPD; 1679 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY; 1680 scsi_ulto2b(sizeof(ld->cl_geometry), inq->length); 1681 1682 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1683 ciss_printf(sc, "error getting geometry (%d)\n", error); 1684 goto out; 1685 } 1686 1687 ciss_report_request(cr, &command_status, NULL); 1688 switch(command_status) { 1689 case CISS_CMD_STATUS_SUCCESS: 1690 case CISS_CMD_STATUS_DATA_UNDERRUN: 1691 break; 1692 case CISS_CMD_STATUS_DATA_OVERRUN: 1693 ciss_printf(sc, "WARNING: Data overrun\n"); 1694 break; 1695 default: 1696 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n", 1697 ciss_name_command_status(command_status)); 1698 break; 1699 } 1700 1701 out: 1702 if (cr != NULL) 1703 ciss_release_request(cr); 1704 return(error); 1705 } 1706 /************************************************************************ 1707 * Identify a logical drive, initialise state related to it. 1708 */ 1709 static int 1710 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1711 { 1712 struct ciss_request *cr; 1713 struct ciss_command *cc; 1714 struct ciss_bmic_cdb *cbc; 1715 int error, command_status; 1716 1717 debug_called(1); 1718 1719 cr = NULL; 1720 1721 /* 1722 * Build a BMIC request to fetch the drive ID. 1723 */ 1724 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE, 1725 (void **)&ld->cl_ldrive, 1726 sizeof(*ld->cl_ldrive))) != 0) 1727 goto out; 1728 cc = cr->cr_cc; 1729 cc->header.address = *ld->cl_controller; /* target controller */ 1730 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1731 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1732 1733 /* 1734 * Submit the request and wait for it to complete. 1735 */ 1736 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1737 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error); 1738 goto out; 1739 } 1740 1741 /* 1742 * Check response. 1743 */ 1744 ciss_report_request(cr, &command_status, NULL); 1745 switch(command_status) { 1746 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1747 break; 1748 case CISS_CMD_STATUS_DATA_UNDERRUN: 1749 case CISS_CMD_STATUS_DATA_OVERRUN: 1750 ciss_printf(sc, "data over/underrun reading logical drive ID\n"); 1751 default: 1752 ciss_printf(sc, "error reading logical drive ID (%s)\n", 1753 ciss_name_command_status(command_status)); 1754 error = EIO; 1755 goto out; 1756 } 1757 ciss_release_request(cr); 1758 cr = NULL; 1759 1760 /* 1761 * Build a CISS BMIC command to get the logical drive status. 1762 */ 1763 if ((error = ciss_get_ldrive_status(sc, ld)) != 0) 1764 goto out; 1765 1766 /* 1767 * Get the logical drive geometry. 1768 */ 1769 if ((error = ciss_inquiry_logical(sc, ld)) != 0) 1770 goto out; 1771 1772 /* 1773 * Print the drive's basic characteristics. 1774 */ 1775 if (bootverbose) { 1776 ciss_printf(sc, "logical drive (b%dt%d): %s, %dMB ", 1777 CISS_LUN_TO_BUS(ld->cl_address.logical.lun), 1778 CISS_LUN_TO_TARGET(ld->cl_address.logical.lun), 1779 ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance), 1780 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) * 1781 ld->cl_ldrive->block_size)); 1782 1783 ciss_print_ldrive(sc, ld); 1784 } 1785 out: 1786 if (error != 0) { 1787 /* make the drive not-exist */ 1788 ld->cl_status = CISS_LD_NONEXISTENT; 1789 if (ld->cl_ldrive != NULL) { 1790 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 1791 ld->cl_ldrive = NULL; 1792 } 1793 if (ld->cl_lstatus != NULL) { 1794 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 1795 ld->cl_lstatus = NULL; 1796 } 1797 } 1798 if (cr != NULL) 1799 ciss_release_request(cr); 1800 1801 return(error); 1802 } 1803 1804 /************************************************************************ 1805 * Get status for a logical drive. 1806 * 1807 * XXX should we also do this in response to Test Unit Ready? 1808 */ 1809 static int 1810 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld) 1811 { 1812 struct ciss_request *cr; 1813 struct ciss_command *cc; 1814 struct ciss_bmic_cdb *cbc; 1815 int error, command_status; 1816 1817 /* 1818 * Build a CISS BMIC command to get the logical drive status. 1819 */ 1820 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS, 1821 (void **)&ld->cl_lstatus, 1822 sizeof(*ld->cl_lstatus))) != 0) 1823 goto out; 1824 cc = cr->cr_cc; 1825 cc->header.address = *ld->cl_controller; /* target controller */ 1826 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1827 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1828 1829 /* 1830 * Submit the request and wait for it to complete. 1831 */ 1832 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1833 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1834 goto out; 1835 } 1836 1837 /* 1838 * Check response. 1839 */ 1840 ciss_report_request(cr, &command_status, NULL); 1841 switch(command_status) { 1842 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1843 break; 1844 case CISS_CMD_STATUS_DATA_UNDERRUN: 1845 case CISS_CMD_STATUS_DATA_OVERRUN: 1846 ciss_printf(sc, "data over/underrun reading logical drive status\n"); 1847 default: 1848 ciss_printf(sc, "error reading logical drive status (%s)\n", 1849 ciss_name_command_status(command_status)); 1850 error = EIO; 1851 goto out; 1852 } 1853 1854 /* 1855 * Set the drive's summary status based on the returned status. 1856 * 1857 * XXX testing shows that a failed JBOD drive comes back at next 1858 * boot in "queued for expansion" mode. WTF? 1859 */ 1860 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status); 1861 1862 out: 1863 if (cr != NULL) 1864 ciss_release_request(cr); 1865 return(error); 1866 } 1867 1868 /************************************************************************ 1869 * Notify the adapter of a config update. 1870 */ 1871 static int 1872 ciss_update_config(struct ciss_softc *sc) 1873 { 1874 int i; 1875 1876 debug_called(1); 1877 1878 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE); 1879 for (i = 0; i < 1000; i++) { 1880 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) & 1881 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) { 1882 return(0); 1883 } 1884 DELAY(1000); 1885 } 1886 return(1); 1887 } 1888 1889 /************************************************************************ 1890 * Accept new media into a logical drive. 1891 * 1892 * XXX The drive has previously been offline; it would be good if we 1893 * could make sure it's not open right now. 1894 */ 1895 static int 1896 ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld) 1897 { 1898 struct ciss_request *cr; 1899 struct ciss_command *cc; 1900 struct ciss_bmic_cdb *cbc; 1901 int command_status; 1902 int error = 0, ldrive; 1903 1904 ldrive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1905 1906 debug(0, "bringing logical drive %d back online", ldrive); 1907 1908 /* 1909 * Build a CISS BMIC command to bring the drive back online. 1910 */ 1911 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA, 1912 NULL, 0)) != 0) 1913 goto out; 1914 cc = cr->cr_cc; 1915 cc->header.address = *ld->cl_controller; /* target controller */ 1916 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1917 cbc->log_drive = ldrive; 1918 1919 /* 1920 * Submit the request and wait for it to complete. 1921 */ 1922 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1923 ciss_printf(sc, "error sending BMIC ACCEPT MEDIA command (%d)\n", error); 1924 goto out; 1925 } 1926 1927 /* 1928 * Check response. 1929 */ 1930 ciss_report_request(cr, &command_status, NULL); 1931 switch(command_status) { 1932 case CISS_CMD_STATUS_SUCCESS: /* all OK */ 1933 /* we should get a logical drive status changed event here */ 1934 break; 1935 default: 1936 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n", 1937 ciss_name_command_status(command_status)); 1938 break; 1939 } 1940 1941 out: 1942 if (cr != NULL) 1943 ciss_release_request(cr); 1944 return(error); 1945 } 1946 1947 /************************************************************************ 1948 * Release adapter resources. 1949 */ 1950 static void 1951 ciss_free(struct ciss_softc *sc) 1952 { 1953 struct ciss_request *cr; 1954 int i, j; 1955 1956 debug_called(1); 1957 1958 /* we're going away */ 1959 sc->ciss_flags |= CISS_FLAG_ABORTING; 1960 1961 /* terminate the periodic heartbeat routine */ 1962 callout_stop(&sc->ciss_periodic); 1963 1964 /* cancel the Event Notify chain */ 1965 ciss_notify_abort(sc); 1966 1967 ciss_kill_notify_thread(sc); 1968 1969 /* disconnect from CAM */ 1970 if (sc->ciss_cam_sim) { 1971 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1972 if (sc->ciss_cam_sim[i]) { 1973 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1974 cam_sim_free(sc->ciss_cam_sim[i], 0); 1975 } 1976 } 1977 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 1978 CISS_PHYSICAL_BASE; i++) { 1979 if (sc->ciss_cam_sim[i]) { 1980 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1981 cam_sim_free(sc->ciss_cam_sim[i], 0); 1982 } 1983 } 1984 free(sc->ciss_cam_sim, CISS_MALLOC_CLASS); 1985 } 1986 if (sc->ciss_cam_devq) 1987 cam_simq_free(sc->ciss_cam_devq); 1988 1989 /* remove the control device */ 1990 mtx_unlock(&sc->ciss_mtx); 1991 if (sc->ciss_dev_t != NULL) 1992 destroy_dev(sc->ciss_dev_t); 1993 1994 /* Final cleanup of the callout. */ 1995 callout_drain(&sc->ciss_periodic); 1996 mtx_destroy(&sc->ciss_mtx); 1997 1998 /* free the controller data */ 1999 if (sc->ciss_id != NULL) 2000 free(sc->ciss_id, CISS_MALLOC_CLASS); 2001 2002 /* release I/O resources */ 2003 if (sc->ciss_regs_resource != NULL) 2004 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 2005 sc->ciss_regs_rid, sc->ciss_regs_resource); 2006 if (sc->ciss_cfg_resource != NULL) 2007 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 2008 sc->ciss_cfg_rid, sc->ciss_cfg_resource); 2009 if (sc->ciss_intr != NULL) 2010 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr); 2011 if (sc->ciss_irq_resource != NULL) 2012 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ, 2013 sc->ciss_irq_rid[0], sc->ciss_irq_resource); 2014 if (sc->ciss_msi) 2015 pci_release_msi(sc->ciss_dev); 2016 2017 while ((cr = ciss_dequeue_free(sc)) != NULL) 2018 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap); 2019 if (sc->ciss_buffer_dmat) 2020 bus_dma_tag_destroy(sc->ciss_buffer_dmat); 2021 2022 /* destroy command memory and DMA tag */ 2023 if (sc->ciss_command != NULL) { 2024 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map); 2025 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map); 2026 } 2027 if (sc->ciss_command_dmat) 2028 bus_dma_tag_destroy(sc->ciss_command_dmat); 2029 2030 if (sc->ciss_reply) { 2031 bus_dmamap_unload(sc->ciss_reply_dmat, sc->ciss_reply_map); 2032 bus_dmamem_free(sc->ciss_reply_dmat, sc->ciss_reply, sc->ciss_reply_map); 2033 } 2034 if (sc->ciss_reply_dmat) 2035 bus_dma_tag_destroy(sc->ciss_reply_dmat); 2036 2037 /* destroy DMA tags */ 2038 if (sc->ciss_parent_dmat) 2039 bus_dma_tag_destroy(sc->ciss_parent_dmat); 2040 if (sc->ciss_logical) { 2041 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 2042 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) { 2043 if (sc->ciss_logical[i][j].cl_ldrive) 2044 free(sc->ciss_logical[i][j].cl_ldrive, CISS_MALLOC_CLASS); 2045 if (sc->ciss_logical[i][j].cl_lstatus) 2046 free(sc->ciss_logical[i][j].cl_lstatus, CISS_MALLOC_CLASS); 2047 } 2048 free(sc->ciss_logical[i], CISS_MALLOC_CLASS); 2049 } 2050 free(sc->ciss_logical, CISS_MALLOC_CLASS); 2051 } 2052 2053 if (sc->ciss_physical) { 2054 for (i = 0; i < sc->ciss_max_physical_bus; i++) 2055 free(sc->ciss_physical[i], CISS_MALLOC_CLASS); 2056 free(sc->ciss_physical, CISS_MALLOC_CLASS); 2057 } 2058 2059 if (sc->ciss_controllers) 2060 free(sc->ciss_controllers, CISS_MALLOC_CLASS); 2061 2062 } 2063 2064 /************************************************************************ 2065 * Give a command to the adapter. 2066 * 2067 * Note that this uses the simple transport layer directly. If we 2068 * want to add support for other layers, we'll need a switch of some 2069 * sort. 2070 * 2071 * Note that the simple transport layer has no way of refusing a 2072 * command; we only have as many request structures as the adapter 2073 * supports commands, so we don't have to check (this presumes that 2074 * the adapter can handle commands as fast as we throw them at it). 2075 */ 2076 static int 2077 ciss_start(struct ciss_request *cr) 2078 { 2079 struct ciss_command *cc __diagused; 2080 int error; 2081 2082 cc = cr->cr_cc; 2083 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag); 2084 2085 /* 2086 * Map the request's data. 2087 */ 2088 if ((error = ciss_map_request(cr))) 2089 return(error); 2090 2091 #if 0 2092 ciss_print_request(cr); 2093 #endif 2094 2095 return(0); 2096 } 2097 2098 /************************************************************************ 2099 * Fetch completed request(s) from the adapter, queue them for 2100 * completion handling. 2101 * 2102 * Note that this uses the simple transport layer directly. If we 2103 * want to add support for other layers, we'll need a switch of some 2104 * sort. 2105 * 2106 * Note that the simple transport mechanism does not require any 2107 * reentrancy protection; the OPQ read is atomic. If there is a 2108 * chance of a race with something else that might move the request 2109 * off the busy list, then we will have to lock against that 2110 * (eg. timeouts, etc.) 2111 */ 2112 static void 2113 ciss_done(struct ciss_softc *sc, cr_qhead_t *qh) 2114 { 2115 struct ciss_request *cr; 2116 struct ciss_command *cc; 2117 u_int32_t tag, index; 2118 2119 debug_called(3); 2120 2121 /* 2122 * Loop quickly taking requests from the adapter and moving them 2123 * to the completed queue. 2124 */ 2125 for (;;) { 2126 tag = CISS_TL_SIMPLE_FETCH_CMD(sc); 2127 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY) 2128 break; 2129 index = tag >> 2; 2130 debug(2, "completed command %d%s", index, 2131 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2132 if (index >= sc->ciss_max_requests) { 2133 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2134 continue; 2135 } 2136 cr = &(sc->ciss_request[index]); 2137 cc = cr->cr_cc; 2138 cc->header.host_tag = tag; /* not updated by adapter */ 2139 ciss_enqueue_complete(cr, qh); 2140 } 2141 2142 } 2143 2144 static void 2145 ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh) 2146 { 2147 struct ciss_request *cr; 2148 struct ciss_command *cc; 2149 u_int32_t tag, index; 2150 2151 debug_called(3); 2152 2153 /* 2154 * Loop quickly taking requests from the adapter and moving them 2155 * to the completed queue. 2156 */ 2157 for (;;) { 2158 tag = sc->ciss_reply[sc->ciss_rqidx]; 2159 if ((tag & CISS_CYCLE_MASK) != sc->ciss_cycle) 2160 break; 2161 index = tag >> 2; 2162 debug(2, "completed command %d%s\n", index, 2163 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2164 if (index < sc->ciss_max_requests) { 2165 cr = &(sc->ciss_request[index]); 2166 cc = cr->cr_cc; 2167 cc->header.host_tag = tag; /* not updated by adapter */ 2168 ciss_enqueue_complete(cr, qh); 2169 } else { 2170 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2171 } 2172 if (++sc->ciss_rqidx == sc->ciss_max_requests) { 2173 sc->ciss_rqidx = 0; 2174 sc->ciss_cycle ^= 1; 2175 } 2176 } 2177 2178 } 2179 2180 /************************************************************************ 2181 * Take an interrupt from the adapter. 2182 */ 2183 static void 2184 ciss_intr(void *arg) 2185 { 2186 cr_qhead_t qh; 2187 struct ciss_softc *sc = (struct ciss_softc *)arg; 2188 2189 /* 2190 * The only interrupt we recognise indicates that there are 2191 * entries in the outbound post queue. 2192 */ 2193 STAILQ_INIT(&qh); 2194 ciss_done(sc, &qh); 2195 mtx_lock(&sc->ciss_mtx); 2196 ciss_complete(sc, &qh); 2197 mtx_unlock(&sc->ciss_mtx); 2198 } 2199 2200 static void 2201 ciss_perf_intr(void *arg) 2202 { 2203 struct ciss_softc *sc = (struct ciss_softc *)arg; 2204 2205 /* Clear the interrupt and flush the bridges. Docs say that the flush 2206 * needs to be done twice, which doesn't seem right. 2207 */ 2208 CISS_TL_PERF_CLEAR_INT(sc); 2209 CISS_TL_PERF_FLUSH_INT(sc); 2210 2211 ciss_perf_msi_intr(sc); 2212 } 2213 2214 static void 2215 ciss_perf_msi_intr(void *arg) 2216 { 2217 cr_qhead_t qh; 2218 struct ciss_softc *sc = (struct ciss_softc *)arg; 2219 2220 STAILQ_INIT(&qh); 2221 ciss_perf_done(sc, &qh); 2222 mtx_lock(&sc->ciss_mtx); 2223 ciss_complete(sc, &qh); 2224 mtx_unlock(&sc->ciss_mtx); 2225 } 2226 2227 /************************************************************************ 2228 * Process completed requests. 2229 * 2230 * Requests can be completed in three fashions: 2231 * 2232 * - by invoking a callback function (cr_complete is non-null) 2233 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set) 2234 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context 2235 */ 2236 static void 2237 ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh) 2238 { 2239 struct ciss_request *cr; 2240 2241 debug_called(2); 2242 2243 /* 2244 * Loop taking requests off the completed queue and performing 2245 * completion processing on them. 2246 */ 2247 for (;;) { 2248 if ((cr = ciss_dequeue_complete(sc, qh)) == NULL) 2249 break; 2250 ciss_unmap_request(cr); 2251 2252 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 2253 ciss_printf(sc, "WARNING: completing non-busy request\n"); 2254 cr->cr_flags &= ~CISS_REQ_BUSY; 2255 2256 /* 2257 * If the request has a callback, invoke it. 2258 */ 2259 if (cr->cr_complete != NULL) { 2260 cr->cr_complete(cr); 2261 continue; 2262 } 2263 2264 /* 2265 * If someone is sleeping on this request, wake them up. 2266 */ 2267 if (cr->cr_flags & CISS_REQ_SLEEP) { 2268 cr->cr_flags &= ~CISS_REQ_SLEEP; 2269 wakeup(cr); 2270 continue; 2271 } 2272 2273 /* 2274 * If someone is polling this request for completion, signal. 2275 */ 2276 if (cr->cr_flags & CISS_REQ_POLL) { 2277 cr->cr_flags &= ~CISS_REQ_POLL; 2278 continue; 2279 } 2280 2281 /* 2282 * Give up and throw the request back on the free queue. This 2283 * should never happen; resources will probably be lost. 2284 */ 2285 ciss_printf(sc, "WARNING: completed command with no submitter\n"); 2286 ciss_enqueue_free(cr); 2287 } 2288 } 2289 2290 /************************************************************************ 2291 * Report on the completion status of a request, and pass back SCSI 2292 * and command status values. 2293 */ 2294 static int 2295 _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func) 2296 { 2297 struct ciss_command *cc; 2298 struct ciss_error_info *ce; 2299 2300 debug_called(2); 2301 2302 cc = cr->cr_cc; 2303 ce = (struct ciss_error_info *)&(cc->sg[0]); 2304 2305 /* 2306 * We don't consider data under/overrun an error for the Report 2307 * Logical/Physical LUNs commands. 2308 */ 2309 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) && 2310 ((ce->command_status == CISS_CMD_STATUS_DATA_OVERRUN) || 2311 (ce->command_status == CISS_CMD_STATUS_DATA_UNDERRUN)) && 2312 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) || 2313 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS) || 2314 (cc->cdb.cdb[0] == INQUIRY))) { 2315 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR; 2316 debug(2, "ignoring irrelevant under/overrun error"); 2317 } 2318 2319 /* 2320 * Check the command's error bit, if clear, there's no status and 2321 * everything is OK. 2322 */ 2323 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) { 2324 if (scsi_status != NULL) 2325 *scsi_status = SCSI_STATUS_OK; 2326 if (command_status != NULL) 2327 *command_status = CISS_CMD_STATUS_SUCCESS; 2328 return(0); 2329 } else { 2330 if (command_status != NULL) 2331 *command_status = ce->command_status; 2332 if (scsi_status != NULL) { 2333 if (ce->command_status == CISS_CMD_STATUS_DATA_UNDERRUN) { 2334 *scsi_status = SCSI_STATUS_OK; 2335 } else if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) { 2336 *scsi_status = ce->scsi_status; 2337 } else { 2338 *scsi_status = -1; 2339 } 2340 } 2341 if (bootverbose && ce->command_status != CISS_CMD_STATUS_DATA_UNDERRUN) 2342 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n", 2343 ce->command_status, ciss_name_command_status(ce->command_status), 2344 ce->scsi_status); 2345 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) { 2346 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x, function %s\n", 2347 ce->additional_error_info.invalid_command.offense_size, 2348 ce->additional_error_info.invalid_command.offense_offset, 2349 ce->additional_error_info.invalid_command.offense_value, 2350 func); 2351 } 2352 } 2353 #if 0 2354 ciss_print_request(cr); 2355 #endif 2356 return(1); 2357 } 2358 2359 /************************************************************************ 2360 * Issue a request and don't return until it's completed. 2361 * 2362 * Depending on adapter status, we may poll or sleep waiting for 2363 * completion. 2364 */ 2365 static int 2366 ciss_synch_request(struct ciss_request *cr, int timeout) 2367 { 2368 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) { 2369 return(ciss_wait_request(cr, timeout)); 2370 } else { 2371 return(ciss_poll_request(cr, timeout)); 2372 } 2373 } 2374 2375 /************************************************************************ 2376 * Issue a request and poll for completion. 2377 * 2378 * Timeout in milliseconds. 2379 */ 2380 static int 2381 ciss_poll_request(struct ciss_request *cr, int timeout) 2382 { 2383 cr_qhead_t qh; 2384 struct ciss_softc *sc; 2385 int error; 2386 2387 debug_called(2); 2388 2389 STAILQ_INIT(&qh); 2390 sc = cr->cr_sc; 2391 cr->cr_flags |= CISS_REQ_POLL; 2392 if ((error = ciss_start(cr)) != 0) 2393 return(error); 2394 2395 do { 2396 if (sc->ciss_perf) 2397 ciss_perf_done(sc, &qh); 2398 else 2399 ciss_done(sc, &qh); 2400 ciss_complete(sc, &qh); 2401 if (!(cr->cr_flags & CISS_REQ_POLL)) 2402 return(0); 2403 DELAY(1000); 2404 } while (timeout-- >= 0); 2405 return(EWOULDBLOCK); 2406 } 2407 2408 /************************************************************************ 2409 * Issue a request and sleep waiting for completion. 2410 * 2411 * Timeout in milliseconds. Note that a spurious wakeup will reset 2412 * the timeout. 2413 */ 2414 static int 2415 ciss_wait_request(struct ciss_request *cr, int timeout) 2416 { 2417 int error; 2418 2419 debug_called(2); 2420 2421 cr->cr_flags |= CISS_REQ_SLEEP; 2422 if ((error = ciss_start(cr)) != 0) 2423 return(error); 2424 2425 while ((cr->cr_flags & CISS_REQ_SLEEP) && (error != EWOULDBLOCK)) { 2426 error = msleep_sbt(cr, &cr->cr_sc->ciss_mtx, PRIBIO, "cissREQ", 2427 SBT_1MS * timeout, 0, 0); 2428 } 2429 return(error); 2430 } 2431 2432 #if 0 2433 /************************************************************************ 2434 * Abort a request. Note that a potential exists here to race the 2435 * request being completed; the caller must deal with this. 2436 */ 2437 static int 2438 ciss_abort_request(struct ciss_request *ar) 2439 { 2440 struct ciss_request *cr; 2441 struct ciss_command *cc; 2442 struct ciss_message_cdb *cmc; 2443 int error; 2444 2445 debug_called(1); 2446 2447 /* get a request */ 2448 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0) 2449 return(error); 2450 2451 /* build the abort command */ 2452 cc = cr->cr_cc; 2453 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */ 2454 cc->header.address.physical.target = 0; 2455 cc->header.address.physical.bus = 0; 2456 cc->cdb.cdb_length = sizeof(*cmc); 2457 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 2458 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2459 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2460 cc->cdb.timeout = 30; 2461 2462 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]); 2463 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT; 2464 cmc->type = CISS_MESSAGE_ABORT_TASK; 2465 cmc->abort_tag = ar->cr_tag; /* endianness?? */ 2466 2467 /* 2468 * Send the request and wait for a response. If we believe we 2469 * aborted the request OK, clear the flag that indicates it's 2470 * running. 2471 */ 2472 error = ciss_synch_request(cr, 35 * 1000); 2473 if (!error) 2474 error = ciss_report_request(cr, NULL, NULL); 2475 ciss_release_request(cr); 2476 2477 return(error); 2478 } 2479 #endif 2480 2481 /************************************************************************ 2482 * Fetch and initialise a request 2483 */ 2484 static int 2485 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp) 2486 { 2487 struct ciss_request *cr; 2488 2489 debug_called(2); 2490 2491 /* 2492 * Get a request and clean it up. 2493 */ 2494 if ((cr = ciss_dequeue_free(sc)) == NULL) 2495 return(ENOMEM); 2496 2497 cr->cr_data = NULL; 2498 cr->cr_flags = 0; 2499 cr->cr_complete = NULL; 2500 cr->cr_private = NULL; 2501 cr->cr_sg_tag = CISS_SG_MAX; /* Backstop to prevent accidents */ 2502 2503 ciss_preen_command(cr); 2504 *crp = cr; 2505 return(0); 2506 } 2507 2508 static void 2509 ciss_preen_command(struct ciss_request *cr) 2510 { 2511 struct ciss_command *cc; 2512 u_int32_t cmdphys; 2513 2514 /* 2515 * Clean up the command structure. 2516 * 2517 * Note that we set up the error_info structure here, since the 2518 * length can be overwritten by any command. 2519 */ 2520 cc = cr->cr_cc; 2521 cc->header.sg_in_list = 0; /* kinda inefficient this way */ 2522 cc->header.sg_total = 0; 2523 cc->header.host_tag = cr->cr_tag << 2; 2524 cc->header.host_tag_zeroes = 0; 2525 bzero(&(cc->sg[0]), CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command)); 2526 cmdphys = cr->cr_ccphys; 2527 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command); 2528 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command); 2529 } 2530 2531 /************************************************************************ 2532 * Release a request to the free list. 2533 */ 2534 static void 2535 ciss_release_request(struct ciss_request *cr) 2536 { 2537 2538 debug_called(2); 2539 2540 /* release the request to the free queue */ 2541 ciss_requeue_free(cr); 2542 } 2543 2544 /************************************************************************ 2545 * Allocate a request that will be used to send a BMIC command. Do some 2546 * of the common setup here to avoid duplicating it everywhere else. 2547 */ 2548 static int 2549 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 2550 int opcode, void **bufp, size_t bufsize) 2551 { 2552 struct ciss_request *cr; 2553 struct ciss_command *cc; 2554 struct ciss_bmic_cdb *cbc; 2555 void *buf; 2556 int error; 2557 int dataout; 2558 2559 debug_called(2); 2560 2561 cr = NULL; 2562 buf = NULL; 2563 2564 /* 2565 * Get a request. 2566 */ 2567 if ((error = ciss_get_request(sc, &cr)) != 0) 2568 goto out; 2569 2570 /* 2571 * Allocate data storage if requested, determine the data direction. 2572 */ 2573 dataout = 0; 2574 if ((bufsize > 0) && (bufp != NULL)) { 2575 if (*bufp == NULL) { 2576 if ((buf = malloc(bufsize, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 2577 error = ENOMEM; 2578 goto out; 2579 } 2580 } else { 2581 buf = *bufp; 2582 dataout = 1; /* we are given a buffer, so we are writing */ 2583 } 2584 } 2585 2586 /* 2587 * Build a CISS BMIC command to get the logical drive ID. 2588 */ 2589 cr->cr_data = buf; 2590 cr->cr_length = bufsize; 2591 if (!dataout) 2592 cr->cr_flags = CISS_REQ_DATAIN; 2593 2594 cc = cr->cr_cc; 2595 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2596 cc->header.address.physical.bus = 0; 2597 cc->header.address.physical.target = 0; 2598 cc->cdb.cdb_length = sizeof(*cbc); 2599 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2600 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2601 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ; 2602 cc->cdb.timeout = 0; 2603 2604 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 2605 bzero(cbc, sizeof(*cbc)); 2606 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ; 2607 cbc->bmic_opcode = opcode; 2608 cbc->size = htons((u_int16_t)bufsize); 2609 2610 out: 2611 if (error) { 2612 if (cr != NULL) 2613 ciss_release_request(cr); 2614 } else { 2615 *crp = cr; 2616 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 2617 *bufp = buf; 2618 } 2619 return(error); 2620 } 2621 2622 /************************************************************************ 2623 * Handle a command passed in from userspace. 2624 */ 2625 static int 2626 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc) 2627 { 2628 struct ciss_request *cr; 2629 struct ciss_command *cc; 2630 struct ciss_error_info *ce; 2631 int error = 0; 2632 2633 debug_called(1); 2634 2635 cr = NULL; 2636 2637 /* 2638 * Get a request. 2639 */ 2640 while (ciss_get_request(sc, &cr) != 0) 2641 msleep(sc, &sc->ciss_mtx, PPAUSE, "cissREQ", hz); 2642 cc = cr->cr_cc; 2643 2644 /* 2645 * Allocate an in-kernel databuffer if required, copy in user data. 2646 */ 2647 mtx_unlock(&sc->ciss_mtx); 2648 cr->cr_length = ioc->buf_size; 2649 if (ioc->buf_size > 0) { 2650 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 2651 error = ENOMEM; 2652 goto out_unlocked; 2653 } 2654 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) { 2655 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2656 goto out_unlocked; 2657 } 2658 } 2659 2660 /* 2661 * Build the request based on the user command. 2662 */ 2663 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address)); 2664 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb)); 2665 2666 /* XXX anything else to populate here? */ 2667 mtx_lock(&sc->ciss_mtx); 2668 2669 /* 2670 * Run the command. 2671 */ 2672 if ((error = ciss_synch_request(cr, 60 * 1000))) { 2673 debug(0, "request failed - %d", error); 2674 goto out; 2675 } 2676 2677 /* 2678 * Check to see if the command succeeded. 2679 */ 2680 ce = (struct ciss_error_info *)&(cc->sg[0]); 2681 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) == 0) 2682 bzero(ce, sizeof(*ce)); 2683 2684 /* 2685 * Copy the results back to the user. 2686 */ 2687 bcopy(ce, &ioc->error_info, sizeof(*ce)); 2688 mtx_unlock(&sc->ciss_mtx); 2689 if ((ioc->buf_size > 0) && 2690 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) { 2691 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2692 goto out_unlocked; 2693 } 2694 2695 /* done OK */ 2696 error = 0; 2697 2698 out_unlocked: 2699 mtx_lock(&sc->ciss_mtx); 2700 2701 out: 2702 if ((cr != NULL) && (cr->cr_data != NULL)) 2703 free(cr->cr_data, CISS_MALLOC_CLASS); 2704 if (cr != NULL) 2705 ciss_release_request(cr); 2706 return(error); 2707 } 2708 2709 /************************************************************************ 2710 * Map a request into bus-visible space, initialise the scatter/gather 2711 * list. 2712 */ 2713 static int 2714 ciss_map_request(struct ciss_request *cr) 2715 { 2716 struct ciss_softc *sc; 2717 int error = 0; 2718 2719 debug_called(2); 2720 2721 sc = cr->cr_sc; 2722 2723 /* check that mapping is necessary */ 2724 if (cr->cr_flags & CISS_REQ_MAPPED) 2725 return(0); 2726 2727 cr->cr_flags |= CISS_REQ_MAPPED; 2728 2729 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2730 BUS_DMASYNC_PREWRITE); 2731 2732 if (cr->cr_data != NULL) { 2733 if (cr->cr_flags & CISS_REQ_CCB) 2734 error = bus_dmamap_load_ccb(sc->ciss_buffer_dmat, 2735 cr->cr_datamap, cr->cr_data, 2736 ciss_request_map_helper, cr, 0); 2737 else 2738 error = bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, 2739 cr->cr_data, cr->cr_length, 2740 ciss_request_map_helper, cr, 0); 2741 if (error != 0) 2742 return (error); 2743 } else { 2744 /* 2745 * Post the command to the adapter. 2746 */ 2747 cr->cr_sg_tag = CISS_SG_NONE; 2748 cr->cr_flags |= CISS_REQ_BUSY; 2749 if (sc->ciss_perf) 2750 CISS_TL_PERF_POST_CMD(sc, cr); 2751 else 2752 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys); 2753 } 2754 2755 return(0); 2756 } 2757 2758 static void 2759 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2760 { 2761 struct ciss_command *cc; 2762 struct ciss_request *cr; 2763 struct ciss_softc *sc; 2764 int i; 2765 2766 debug_called(2); 2767 2768 cr = (struct ciss_request *)arg; 2769 sc = cr->cr_sc; 2770 cc = cr->cr_cc; 2771 2772 for (i = 0; i < nseg; i++) { 2773 cc->sg[i].address = segs[i].ds_addr; 2774 cc->sg[i].length = segs[i].ds_len; 2775 cc->sg[i].extension = 0; 2776 } 2777 /* we leave the s/g table entirely within the command */ 2778 cc->header.sg_in_list = nseg; 2779 cc->header.sg_total = nseg; 2780 2781 if (cr->cr_flags & CISS_REQ_DATAIN) 2782 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD); 2783 if (cr->cr_flags & CISS_REQ_DATAOUT) 2784 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE); 2785 2786 if (nseg == 0) 2787 cr->cr_sg_tag = CISS_SG_NONE; 2788 else if (nseg == 1) 2789 cr->cr_sg_tag = CISS_SG_1; 2790 else if (nseg == 2) 2791 cr->cr_sg_tag = CISS_SG_2; 2792 else if (nseg <= 4) 2793 cr->cr_sg_tag = CISS_SG_4; 2794 else if (nseg <= 8) 2795 cr->cr_sg_tag = CISS_SG_8; 2796 else if (nseg <= 16) 2797 cr->cr_sg_tag = CISS_SG_16; 2798 else if (nseg <= 32) 2799 cr->cr_sg_tag = CISS_SG_32; 2800 else 2801 cr->cr_sg_tag = CISS_SG_MAX; 2802 2803 /* 2804 * Post the command to the adapter. 2805 */ 2806 cr->cr_flags |= CISS_REQ_BUSY; 2807 if (sc->ciss_perf) 2808 CISS_TL_PERF_POST_CMD(sc, cr); 2809 else 2810 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys); 2811 } 2812 2813 /************************************************************************ 2814 * Unmap a request from bus-visible space. 2815 */ 2816 static void 2817 ciss_unmap_request(struct ciss_request *cr) 2818 { 2819 struct ciss_softc *sc; 2820 2821 debug_called(2); 2822 2823 sc = cr->cr_sc; 2824 2825 /* check that unmapping is necessary */ 2826 if ((cr->cr_flags & CISS_REQ_MAPPED) == 0) 2827 return; 2828 2829 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2830 BUS_DMASYNC_POSTWRITE); 2831 2832 if (cr->cr_data == NULL) 2833 goto out; 2834 2835 if (cr->cr_flags & CISS_REQ_DATAIN) 2836 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD); 2837 if (cr->cr_flags & CISS_REQ_DATAOUT) 2838 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE); 2839 2840 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap); 2841 out: 2842 cr->cr_flags &= ~CISS_REQ_MAPPED; 2843 } 2844 2845 /************************************************************************ 2846 * Attach the driver to CAM. 2847 * 2848 * We put all the logical drives on a single SCSI bus. 2849 */ 2850 static int 2851 ciss_cam_init(struct ciss_softc *sc) 2852 { 2853 int i, maxbus; 2854 2855 debug_called(1); 2856 2857 /* 2858 * Allocate a devq. We can reuse this for the masked physical 2859 * devices if we decide to export these as well. 2860 */ 2861 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests - 2)) == NULL) { 2862 ciss_printf(sc, "can't allocate CAM SIM queue\n"); 2863 return(ENOMEM); 2864 } 2865 2866 /* 2867 * Create a SIM. 2868 * 2869 * This naturally wastes a bit of memory. The alternative is to allocate 2870 * and register each bus as it is found, and then track them on a linked 2871 * list. Unfortunately, the driver has a few places where it needs to 2872 * look up the SIM based solely on bus number, and it's unclear whether 2873 * a list traversal would work for these situations. 2874 */ 2875 maxbus = max(sc->ciss_max_logical_bus, sc->ciss_max_physical_bus + 2876 CISS_PHYSICAL_BASE); 2877 sc->ciss_cam_sim = malloc(maxbus * sizeof(struct cam_sim*), 2878 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 2879 if (sc->ciss_cam_sim == NULL) { 2880 ciss_printf(sc, "can't allocate memory for controller SIM\n"); 2881 return(ENOMEM); 2882 } 2883 2884 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 2885 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2886 "ciss", sc, 2887 device_get_unit(sc->ciss_dev), 2888 &sc->ciss_mtx, 2889 2, 2890 sc->ciss_max_requests - 2, 2891 sc->ciss_cam_devq)) == NULL) { 2892 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2893 return(ENOMEM); 2894 } 2895 2896 /* 2897 * Register bus with this SIM. 2898 */ 2899 mtx_lock(&sc->ciss_mtx); 2900 if (i == 0 || sc->ciss_controllers[i].physical.bus != 0) { 2901 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) { 2902 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2903 mtx_unlock(&sc->ciss_mtx); 2904 return (ENXIO); 2905 } 2906 } 2907 mtx_unlock(&sc->ciss_mtx); 2908 } 2909 2910 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2911 CISS_PHYSICAL_BASE; i++) { 2912 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2913 "ciss", sc, 2914 device_get_unit(sc->ciss_dev), 2915 &sc->ciss_mtx, 1, 2916 sc->ciss_max_requests - 2, 2917 sc->ciss_cam_devq)) == NULL) { 2918 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2919 return (ENOMEM); 2920 } 2921 2922 mtx_lock(&sc->ciss_mtx); 2923 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) { 2924 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2925 mtx_unlock(&sc->ciss_mtx); 2926 return (ENXIO); 2927 } 2928 mtx_unlock(&sc->ciss_mtx); 2929 } 2930 2931 return(0); 2932 } 2933 2934 /************************************************************************ 2935 * Initiate a rescan of the 'logical devices' SIM 2936 */ 2937 static void 2938 ciss_cam_rescan_target(struct ciss_softc *sc, int bus, int target) 2939 { 2940 union ccb *ccb; 2941 2942 debug_called(1); 2943 2944 if ((ccb = xpt_alloc_ccb_nowait()) == NULL) { 2945 ciss_printf(sc, "rescan failed (can't allocate CCB)\n"); 2946 return; 2947 } 2948 2949 if (xpt_create_path(&ccb->ccb_h.path, NULL, 2950 cam_sim_path(sc->ciss_cam_sim[bus]), 2951 target, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 2952 ciss_printf(sc, "rescan failed (can't create path)\n"); 2953 xpt_free_ccb(ccb); 2954 return; 2955 } 2956 xpt_rescan(ccb); 2957 /* scan is now in progress */ 2958 } 2959 2960 /************************************************************************ 2961 * Handle requests coming from CAM 2962 */ 2963 static void 2964 ciss_cam_action(struct cam_sim *sim, union ccb *ccb) 2965 { 2966 struct ciss_softc *sc; 2967 struct ccb_scsiio *csio; 2968 int bus, target; 2969 int physical; 2970 2971 sc = cam_sim_softc(sim); 2972 bus = cam_sim_bus(sim); 2973 csio = (struct ccb_scsiio *)&ccb->csio; 2974 target = csio->ccb_h.target_id; 2975 physical = CISS_IS_PHYSICAL(bus); 2976 2977 switch (ccb->ccb_h.func_code) { 2978 /* perform SCSI I/O */ 2979 case XPT_SCSI_IO: 2980 if (!ciss_cam_action_io(sim, csio)) 2981 return; 2982 break; 2983 2984 /* perform geometry calculations */ 2985 case XPT_CALC_GEOMETRY: 2986 { 2987 struct ccb_calc_geometry *ccg = &ccb->ccg; 2988 struct ciss_ldrive *ld; 2989 2990 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2991 2992 ld = NULL; 2993 if (!physical) 2994 ld = &sc->ciss_logical[bus][target]; 2995 2996 /* 2997 * Use the cached geometry settings unless the fault tolerance 2998 * is invalid. 2999 */ 3000 if (physical || ld->cl_geometry.fault_tolerance == 0xFF) { 3001 u_int32_t secs_per_cylinder; 3002 3003 ccg->heads = 255; 3004 ccg->secs_per_track = 32; 3005 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 3006 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 3007 } else { 3008 ccg->heads = ld->cl_geometry.heads; 3009 ccg->secs_per_track = ld->cl_geometry.sectors; 3010 ccg->cylinders = ntohs(ld->cl_geometry.cylinders); 3011 } 3012 ccb->ccb_h.status = CAM_REQ_CMP; 3013 break; 3014 } 3015 3016 /* handle path attribute inquiry */ 3017 case XPT_PATH_INQ: 3018 { 3019 struct ccb_pathinq *cpi = &ccb->cpi; 3020 int sg_length; 3021 3022 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 3023 3024 cpi->version_num = 1; 3025 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */ 3026 cpi->target_sprt = 0; 3027 cpi->hba_misc = 0; 3028 cpi->max_target = sc->ciss_cfg->max_logical_supported; 3029 cpi->max_lun = 0; /* 'logical drive' channel only */ 3030 cpi->initiator_id = sc->ciss_cfg->max_logical_supported; 3031 strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 3032 strlcpy(cpi->hba_vid, "CISS", HBA_IDLEN); 3033 strlcpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 3034 cpi->unit_number = cam_sim_unit(sim); 3035 cpi->bus_id = cam_sim_bus(sim); 3036 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */ 3037 cpi->transport = XPORT_SPI; 3038 cpi->transport_version = 2; 3039 cpi->protocol = PROTO_SCSI; 3040 cpi->protocol_version = SCSI_REV_2; 3041 if (sc->ciss_cfg->max_sg_length == 0) { 3042 sg_length = 17; 3043 } else { 3044 /* XXX Fix for ZMR cards that advertise max_sg_length == 32 3045 * Confusing bit here. max_sg_length is usually a power of 2. We always 3046 * need to subtract 1 to account for partial pages. Then we need to 3047 * align on a valid PAGE_SIZE so we round down to the nearest power of 2. 3048 * Add 1 so we can then subtract it out in the assignment to maxio. 3049 * The reason for all these shenanigans is to create a maxio value that 3050 * creates IO operations to volumes that yield consistent operations 3051 * with good performance. 3052 */ 3053 sg_length = sc->ciss_cfg->max_sg_length - 1; 3054 sg_length = (1 << (fls(sg_length) - 1)) + 1; 3055 } 3056 cpi->maxio = (min(CISS_MAX_SG_ELEMENTS, sg_length) - 1) * PAGE_SIZE; 3057 ccb->ccb_h.status = CAM_REQ_CMP; 3058 break; 3059 } 3060 3061 case XPT_GET_TRAN_SETTINGS: 3062 { 3063 struct ccb_trans_settings *cts = &ccb->cts; 3064 int bus __diagused, target __diagused; 3065 struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi; 3066 struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi; 3067 3068 bus = cam_sim_bus(sim); 3069 target = cts->ccb_h.target_id; 3070 3071 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target); 3072 /* disconnect always OK */ 3073 cts->protocol = PROTO_SCSI; 3074 cts->protocol_version = SCSI_REV_2; 3075 cts->transport = XPORT_SPI; 3076 cts->transport_version = 2; 3077 3078 spi->valid = CTS_SPI_VALID_DISC; 3079 spi->flags = CTS_SPI_FLAGS_DISC_ENB; 3080 3081 scsi->valid = CTS_SCSI_VALID_TQ; 3082 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB; 3083 3084 cts->ccb_h.status = CAM_REQ_CMP; 3085 break; 3086 } 3087 3088 default: /* we can't do this */ 3089 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code); 3090 ccb->ccb_h.status = CAM_REQ_INVALID; 3091 break; 3092 } 3093 3094 xpt_done(ccb); 3095 } 3096 3097 /************************************************************************ 3098 * Handle a CAM SCSI I/O request. 3099 */ 3100 static int 3101 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio) 3102 { 3103 struct ciss_softc *sc; 3104 int bus, target; 3105 struct ciss_request *cr; 3106 struct ciss_command *cc; 3107 int error; 3108 3109 sc = cam_sim_softc(sim); 3110 bus = cam_sim_bus(sim); 3111 target = csio->ccb_h.target_id; 3112 3113 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun); 3114 3115 /* check that the CDB pointer is not to a physical address */ 3116 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) { 3117 debug(3, " CDB pointer is to physical address"); 3118 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3119 } 3120 3121 /* abandon aborted ccbs or those that have failed validation */ 3122 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 3123 debug(3, "abandoning CCB due to abort/validation failure"); 3124 return(EINVAL); 3125 } 3126 3127 /* handle emulation of some SCSI commands ourself */ 3128 if (ciss_cam_emulate(sc, csio)) 3129 return(0); 3130 3131 /* 3132 * Get a request to manage this command. If we can't, return the 3133 * ccb, freeze the queue and flag so that we unfreeze it when a 3134 * request completes. 3135 */ 3136 if ((error = ciss_get_request(sc, &cr)) != 0) { 3137 xpt_freeze_simq(sim, 1); 3138 sc->ciss_flags |= CISS_FLAG_BUSY; 3139 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3140 return(error); 3141 } 3142 3143 /* 3144 * Build the command. 3145 */ 3146 cc = cr->cr_cc; 3147 cr->cr_data = csio; 3148 cr->cr_length = csio->dxfer_len; 3149 cr->cr_complete = ciss_cam_complete; 3150 cr->cr_private = csio; 3151 3152 /* 3153 * Target the right logical volume. 3154 */ 3155 if (CISS_IS_PHYSICAL(bus)) 3156 cc->header.address = 3157 sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_address; 3158 else 3159 cc->header.address = 3160 sc->ciss_logical[bus][target].cl_address; 3161 cc->cdb.cdb_length = csio->cdb_len; 3162 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3163 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */ 3164 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 3165 cr->cr_flags = CISS_REQ_DATAOUT | CISS_REQ_CCB; 3166 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3167 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 3168 cr->cr_flags = CISS_REQ_DATAIN | CISS_REQ_CCB; 3169 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3170 } else { 3171 cr->cr_data = NULL; 3172 cr->cr_flags = 0; 3173 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 3174 } 3175 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1; 3176 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 3177 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len); 3178 } else { 3179 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len); 3180 } 3181 3182 /* 3183 * Submit the request to the adapter. 3184 * 3185 * Note that this may fail if we're unable to map the request (and 3186 * if we ever learn a transport layer other than simple, may fail 3187 * if the adapter rejects the command). 3188 */ 3189 if ((error = ciss_start(cr)) != 0) { 3190 xpt_freeze_simq(sim, 1); 3191 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3192 if (error == EINPROGRESS) { 3193 error = 0; 3194 } else { 3195 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3196 ciss_release_request(cr); 3197 } 3198 return(error); 3199 } 3200 3201 return(0); 3202 } 3203 3204 /************************************************************************ 3205 * Emulate SCSI commands the adapter doesn't handle as we might like. 3206 */ 3207 static int 3208 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio) 3209 { 3210 int bus, target; 3211 u_int8_t opcode; 3212 3213 target = csio->ccb_h.target_id; 3214 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3215 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 3216 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]; 3217 3218 if (CISS_IS_PHYSICAL(bus)) { 3219 if (sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_online != 1) { 3220 csio->ccb_h.status |= CAM_SEL_TIMEOUT; 3221 xpt_done((union ccb *)csio); 3222 return(1); 3223 } else 3224 return(0); 3225 } 3226 3227 /* 3228 * Handle requests for volumes that don't exist or are not online. 3229 * A selection timeout is slightly better than an illegal request. 3230 * Other errors might be better. 3231 */ 3232 if (sc->ciss_logical[bus][target].cl_status != CISS_LD_ONLINE) { 3233 csio->ccb_h.status |= CAM_SEL_TIMEOUT; 3234 xpt_done((union ccb *)csio); 3235 return(1); 3236 } 3237 3238 /* if we have to fake Synchronise Cache */ 3239 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) { 3240 /* 3241 * If this is a Synchronise Cache command, typically issued when 3242 * a device is closed, flush the adapter and complete now. 3243 */ 3244 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 3245 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) { 3246 ciss_flush_adapter(sc); 3247 csio->ccb_h.status |= CAM_REQ_CMP; 3248 xpt_done((union ccb *)csio); 3249 return(1); 3250 } 3251 } 3252 3253 /* 3254 * A CISS target can only ever have one lun per target. REPORT_LUNS requires 3255 * at least one LUN field to be pre created for us, so snag it and fill in 3256 * the least significant byte indicating 1 LUN here. Emulate the command 3257 * return to shut up warning on console of a CDB error. swb 3258 */ 3259 if (opcode == REPORT_LUNS && csio->dxfer_len > 0) { 3260 csio->data_ptr[3] = 8; 3261 csio->ccb_h.status |= CAM_REQ_CMP; 3262 xpt_done((union ccb *)csio); 3263 return(1); 3264 } 3265 3266 return(0); 3267 } 3268 3269 /************************************************************************ 3270 * Check for possibly-completed commands. 3271 */ 3272 static void 3273 ciss_cam_poll(struct cam_sim *sim) 3274 { 3275 cr_qhead_t qh; 3276 struct ciss_softc *sc = cam_sim_softc(sim); 3277 3278 debug_called(2); 3279 3280 STAILQ_INIT(&qh); 3281 if (sc->ciss_perf) 3282 ciss_perf_done(sc, &qh); 3283 else 3284 ciss_done(sc, &qh); 3285 ciss_complete(sc, &qh); 3286 } 3287 3288 /************************************************************************ 3289 * Handle completion of a command - pass results back through the CCB 3290 */ 3291 static void 3292 ciss_cam_complete(struct ciss_request *cr) 3293 { 3294 struct ciss_softc *sc; 3295 struct ciss_command *cc; 3296 struct ciss_error_info *ce; 3297 struct ccb_scsiio *csio; 3298 int scsi_status; 3299 int command_status; 3300 3301 debug_called(2); 3302 3303 sc = cr->cr_sc; 3304 cc = cr->cr_cc; 3305 ce = (struct ciss_error_info *)&(cc->sg[0]); 3306 csio = (struct ccb_scsiio *)cr->cr_private; 3307 3308 /* 3309 * Extract status values from request. 3310 */ 3311 ciss_report_request(cr, &command_status, &scsi_status); 3312 switch(command_status) { 3313 case CISS_CMD_STATUS_DATA_UNDERRUN: 3314 csio->resid = ce->residual_count; 3315 /* FALLTHROUGH */ 3316 case CISS_CMD_STATUS_SUCCESS: 3317 csio->scsi_status = scsi_status; 3318 debug(2, "SCSI_STATUS_OK"); 3319 csio->ccb_h.status |= CAM_REQ_CMP; 3320 break; 3321 case CISS_CMD_STATUS_TARGET_STATUS: 3322 csio->scsi_status = scsi_status; 3323 bzero(&csio->sense_data, SSD_FULL_SIZE); 3324 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length); 3325 if (csio->sense_len > ce->sense_length) 3326 csio->sense_resid = csio->sense_len - ce->sense_length; 3327 else 3328 csio->sense_resid = 0; 3329 csio->resid = ce->residual_count; 3330 csio->ccb_h.status |= CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 3331 break; 3332 case CISS_CMD_STATUS_DATA_OVERRUN: 3333 csio->ccb_h.status |= CAM_DATA_RUN_ERR; 3334 break; 3335 default: 3336 csio->ccb_h.status |= CAM_REQ_CMP_ERR; 3337 break; 3338 } 3339 3340 /* handle post-command fixup */ 3341 ciss_cam_complete_fixup(sc, csio); 3342 3343 ciss_release_request(cr); 3344 if (sc->ciss_flags & CISS_FLAG_BUSY) { 3345 sc->ciss_flags &= ~CISS_FLAG_BUSY; 3346 if (csio->ccb_h.status & CAM_RELEASE_SIMQ) 3347 xpt_release_simq(xpt_path_sim(csio->ccb_h.path), 0); 3348 else 3349 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3350 } 3351 xpt_done((union ccb *)csio); 3352 } 3353 3354 /******************************************************************************** 3355 * Fix up the result of some commands here. 3356 */ 3357 static void 3358 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio) 3359 { 3360 struct scsi_inquiry_data *inq; 3361 struct ciss_ldrive *cl; 3362 uint8_t *cdb; 3363 int bus, target; 3364 3365 cdb = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 3366 (uint8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes; 3367 if (cdb[0] == INQUIRY && 3368 (cdb[1] & SI_EVPD) == 0 && 3369 (csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN && 3370 csio->dxfer_len >= SHORT_INQUIRY_LENGTH) { 3371 inq = (struct scsi_inquiry_data *)csio->data_ptr; 3372 target = csio->ccb_h.target_id; 3373 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3374 3375 /* 3376 * If the controller is in JBOD mode, there are no logical volumes. 3377 * Let the disks be probed and dealt with via CAM. Else, mask off 3378 * the physical disks and setup the parts of the inq structure for 3379 * the logical volume. swb 3380 */ 3381 if( !(sc->ciss_id->PowerUPNvramFlags & PWR_UP_FLAG_JBOD_ENABLED)){ 3382 if (CISS_IS_PHYSICAL(bus)) { 3383 if (SID_TYPE(inq) == T_DIRECT) 3384 inq->device = (inq->device & 0xe0) | T_NODEVICE; 3385 return; 3386 } 3387 cl = &sc->ciss_logical[bus][target]; 3388 3389 padstr(inq->vendor, "HP", 3390 SID_VENDOR_SIZE); 3391 padstr(inq->product, 3392 ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 3393 SID_PRODUCT_SIZE); 3394 padstr(inq->revision, 3395 ciss_name_ldrive_status(cl->cl_lstatus->status), 3396 SID_REVISION_SIZE); 3397 } 3398 } 3399 } 3400 3401 /******************************************************************************** 3402 * Name the device at (target) 3403 * 3404 * XXX is this strictly correct? 3405 */ 3406 static int 3407 ciss_name_device(struct ciss_softc *sc, int bus, int target) 3408 { 3409 struct cam_periph *periph; 3410 struct cam_path *path; 3411 int status; 3412 3413 if (CISS_IS_PHYSICAL(bus)) 3414 return (0); 3415 3416 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim[bus]), 3417 target, 0); 3418 3419 if (status == CAM_REQ_CMP) { 3420 xpt_path_lock(path); 3421 periph = cam_periph_find(path, NULL); 3422 xpt_path_unlock(path); 3423 xpt_free_path(path); 3424 if (periph != NULL) { 3425 sprintf(sc->ciss_logical[bus][target].cl_name, "%s%d", 3426 periph->periph_name, periph->unit_number); 3427 return(0); 3428 } 3429 } 3430 sc->ciss_logical[bus][target].cl_name[0] = 0; 3431 return(ENOENT); 3432 } 3433 3434 /************************************************************************ 3435 * Periodic status monitoring. 3436 */ 3437 static void 3438 ciss_periodic(void *arg) 3439 { 3440 struct ciss_softc *sc; 3441 struct ciss_request *cr = NULL; 3442 struct ciss_command *cc = NULL; 3443 int error = 0; 3444 3445 debug_called(1); 3446 3447 sc = (struct ciss_softc *)arg; 3448 3449 /* 3450 * Check the adapter heartbeat. 3451 */ 3452 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) { 3453 sc->ciss_heart_attack++; 3454 debug(0, "adapter heart attack in progress 0x%x/%d", 3455 sc->ciss_heartbeat, sc->ciss_heart_attack); 3456 if (sc->ciss_heart_attack == 3) { 3457 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n"); 3458 ciss_disable_adapter(sc); 3459 return; 3460 } 3461 } else { 3462 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat; 3463 sc->ciss_heart_attack = 0; 3464 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat); 3465 } 3466 3467 /* 3468 * Send the NOP message and wait for a response. 3469 */ 3470 if (ciss_nop_message_heartbeat != 0 && (error = ciss_get_request(sc, &cr)) == 0) { 3471 cc = cr->cr_cc; 3472 cr->cr_complete = ciss_nop_complete; 3473 cc->cdb.cdb_length = 1; 3474 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 3475 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3476 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3477 cc->cdb.timeout = 0; 3478 cc->cdb.cdb[0] = CISS_OPCODE_MESSAGE_NOP; 3479 3480 if ((error = ciss_start(cr)) != 0) { 3481 ciss_printf(sc, "SENDING NOP MESSAGE FAILED\n"); 3482 } 3483 } 3484 3485 /* 3486 * If the notify event request has died for some reason, or has 3487 * not started yet, restart it. 3488 */ 3489 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) { 3490 debug(0, "(re)starting Event Notify chain"); 3491 ciss_notify_event(sc); 3492 } 3493 3494 /* 3495 * Reschedule. 3496 */ 3497 callout_reset(&sc->ciss_periodic, CISS_HEARTBEAT_RATE * hz, ciss_periodic, sc); 3498 } 3499 3500 static void 3501 ciss_nop_complete(struct ciss_request *cr) 3502 { 3503 struct ciss_softc *sc; 3504 static int first_time = 1; 3505 3506 sc = cr->cr_sc; 3507 if (ciss_report_request(cr, NULL, NULL) != 0) { 3508 if (first_time == 1) { 3509 first_time = 0; 3510 ciss_printf(sc, "SENDING NOP MESSAGE FAILED (not logging anymore)\n"); 3511 } 3512 } 3513 3514 ciss_release_request(cr); 3515 } 3516 3517 /************************************************************************ 3518 * Disable the adapter. 3519 * 3520 * The all requests in completed queue is failed with hardware error. 3521 * This will cause failover in a multipath configuration. 3522 */ 3523 static void 3524 ciss_disable_adapter(struct ciss_softc *sc) 3525 { 3526 cr_qhead_t qh; 3527 struct ciss_request *cr; 3528 struct ciss_command *cc; 3529 struct ciss_error_info *ce; 3530 int i; 3531 3532 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 3533 pci_disable_busmaster(sc->ciss_dev); 3534 sc->ciss_flags &= ~CISS_FLAG_RUNNING; 3535 3536 STAILQ_INIT(&qh); 3537 for (i = 1; i < sc->ciss_max_requests; i++) { 3538 cr = &sc->ciss_request[i]; 3539 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 3540 continue; 3541 3542 cc = cr->cr_cc; 3543 ce = (struct ciss_error_info *)&(cc->sg[0]); 3544 ce->command_status = CISS_CMD_STATUS_HARDWARE_ERROR; 3545 ciss_enqueue_complete(cr, &qh); 3546 } 3547 3548 for (;;) { 3549 if ((cr = ciss_dequeue_complete(sc, &qh)) == NULL) 3550 break; 3551 3552 /* 3553 * If the request has a callback, invoke it. 3554 */ 3555 if (cr->cr_complete != NULL) { 3556 cr->cr_complete(cr); 3557 continue; 3558 } 3559 3560 /* 3561 * If someone is sleeping on this request, wake them up. 3562 */ 3563 if (cr->cr_flags & CISS_REQ_SLEEP) { 3564 cr->cr_flags &= ~CISS_REQ_SLEEP; 3565 wakeup(cr); 3566 continue; 3567 } 3568 } 3569 } 3570 3571 /************************************************************************ 3572 * Request a notification response from the adapter. 3573 * 3574 * If (cr) is NULL, this is the first request of the adapter, so 3575 * reset the adapter's message pointer and start with the oldest 3576 * message available. 3577 */ 3578 static void 3579 ciss_notify_event(struct ciss_softc *sc) 3580 { 3581 struct ciss_request *cr; 3582 struct ciss_command *cc; 3583 struct ciss_notify_cdb *cnc; 3584 int error; 3585 3586 debug_called(1); 3587 3588 cr = sc->ciss_periodic_notify; 3589 3590 /* get a request if we don't already have one */ 3591 if (cr == NULL) { 3592 if ((error = ciss_get_request(sc, &cr)) != 0) { 3593 debug(0, "can't get notify event request"); 3594 goto out; 3595 } 3596 sc->ciss_periodic_notify = cr; 3597 cr->cr_complete = ciss_notify_complete; 3598 debug(1, "acquired request %d", cr->cr_tag); 3599 } 3600 3601 /* 3602 * Get a databuffer if we don't already have one, note that the 3603 * adapter command wants a larger buffer than the actual 3604 * structure. 3605 */ 3606 if (cr->cr_data == NULL) { 3607 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3608 debug(0, "can't get notify event request buffer"); 3609 error = ENOMEM; 3610 goto out; 3611 } 3612 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3613 } 3614 3615 /* re-setup the request's command (since we never release it) XXX overkill*/ 3616 ciss_preen_command(cr); 3617 3618 /* (re)build the notify event command */ 3619 cc = cr->cr_cc; 3620 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3621 cc->header.address.physical.bus = 0; 3622 cc->header.address.physical.target = 0; 3623 3624 cc->cdb.cdb_length = sizeof(*cnc); 3625 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3626 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3627 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3628 cc->cdb.timeout = 0; /* no timeout, we hope */ 3629 3630 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3631 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE); 3632 cnc->opcode = CISS_OPCODE_READ; 3633 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT; 3634 cnc->timeout = 0; /* no timeout, we hope */ 3635 cnc->synchronous = 0; 3636 cnc->ordered = 0; 3637 cnc->seek_to_oldest = 0; 3638 if ((sc->ciss_flags & CISS_FLAG_RUNNING) == 0) 3639 cnc->new_only = 1; 3640 else 3641 cnc->new_only = 0; 3642 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3643 3644 /* submit the request */ 3645 error = ciss_start(cr); 3646 3647 out: 3648 if (error) { 3649 if (cr != NULL) { 3650 if (cr->cr_data != NULL) 3651 free(cr->cr_data, CISS_MALLOC_CLASS); 3652 ciss_release_request(cr); 3653 } 3654 sc->ciss_periodic_notify = NULL; 3655 debug(0, "can't submit notify event request"); 3656 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3657 } else { 3658 debug(1, "notify event submitted"); 3659 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK; 3660 } 3661 } 3662 3663 static void 3664 ciss_notify_complete(struct ciss_request *cr) 3665 { 3666 struct ciss_notify *cn; 3667 struct ciss_softc *sc; 3668 int scsi_status; 3669 int command_status; 3670 debug_called(1); 3671 3672 cn = (struct ciss_notify *)cr->cr_data; 3673 sc = cr->cr_sc; 3674 3675 /* 3676 * Report request results, decode status. 3677 */ 3678 ciss_report_request(cr, &command_status, &scsi_status); 3679 3680 /* 3681 * Abort the chain on a fatal error. 3682 * 3683 * XXX which of these are actually errors? 3684 */ 3685 if ((command_status != CISS_CMD_STATUS_SUCCESS) && 3686 (command_status != CISS_CMD_STATUS_TARGET_STATUS) && 3687 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */ 3688 ciss_printf(sc, "fatal error in Notify Event request (%s)\n", 3689 ciss_name_command_status(command_status)); 3690 ciss_release_request(cr); 3691 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3692 return; 3693 } 3694 3695 /* 3696 * If the adapter gave us a text message, print it. 3697 */ 3698 if (cn->message[0] != 0) 3699 ciss_printf(sc, "*** %.80s\n", cn->message); 3700 3701 debug(0, "notify event class %d subclass %d detail %d", 3702 cn->class, cn->subclass, cn->detail); 3703 3704 /* 3705 * If the response indicates that the notifier has been aborted, 3706 * release the notifier command. 3707 */ 3708 if ((cn->class == CISS_NOTIFY_NOTIFIER) && 3709 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) && 3710 (cn->detail == 1)) { 3711 debug(0, "notifier exiting"); 3712 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3713 ciss_release_request(cr); 3714 sc->ciss_periodic_notify = NULL; 3715 wakeup(&sc->ciss_periodic_notify); 3716 } else { 3717 /* Handle notify events in a kernel thread */ 3718 ciss_enqueue_notify(cr); 3719 sc->ciss_periodic_notify = NULL; 3720 wakeup(&sc->ciss_periodic_notify); 3721 wakeup(&sc->ciss_notify); 3722 } 3723 /* 3724 * Send a new notify event command, if we're not aborting. 3725 */ 3726 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) { 3727 ciss_notify_event(sc); 3728 } 3729 } 3730 3731 /************************************************************************ 3732 * Abort the Notify Event chain. 3733 * 3734 * Note that we can't just abort the command in progress; we have to 3735 * explicitly issue an Abort Notify Event command in order for the 3736 * adapter to clean up correctly. 3737 * 3738 * If we are called with CISS_FLAG_ABORTING set in the adapter softc, 3739 * the chain will not restart itself. 3740 */ 3741 static int 3742 ciss_notify_abort(struct ciss_softc *sc) 3743 { 3744 struct ciss_request *cr; 3745 struct ciss_command *cc; 3746 struct ciss_notify_cdb *cnc; 3747 int error, command_status, scsi_status; 3748 3749 debug_called(1); 3750 3751 cr = NULL; 3752 error = 0; 3753 3754 /* verify that there's an outstanding command */ 3755 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3756 goto out; 3757 3758 /* get a command to issue the abort with */ 3759 if ((error = ciss_get_request(sc, &cr))) 3760 goto out; 3761 3762 /* get a buffer for the result */ 3763 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3764 debug(0, "can't get notify event request buffer"); 3765 error = ENOMEM; 3766 goto out; 3767 } 3768 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3769 3770 /* build the CDB */ 3771 cc = cr->cr_cc; 3772 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3773 cc->header.address.physical.bus = 0; 3774 cc->header.address.physical.target = 0; 3775 cc->cdb.cdb_length = sizeof(*cnc); 3776 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3777 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3778 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3779 cc->cdb.timeout = 0; /* no timeout, we hope */ 3780 3781 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3782 bzero(cnc, sizeof(*cnc)); 3783 cnc->opcode = CISS_OPCODE_WRITE; 3784 cnc->command = CISS_COMMAND_ABORT_NOTIFY; 3785 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3786 #if 0 3787 ciss_print_request(cr); 3788 #endif 3789 3790 /* 3791 * Submit the request and wait for it to complete. 3792 */ 3793 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3794 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error); 3795 goto out; 3796 } 3797 3798 /* 3799 * Check response. 3800 */ 3801 ciss_report_request(cr, &command_status, &scsi_status); 3802 switch(command_status) { 3803 case CISS_CMD_STATUS_SUCCESS: 3804 break; 3805 case CISS_CMD_STATUS_INVALID_COMMAND: 3806 /* 3807 * Some older adapters don't support the CISS version of this 3808 * command. Fall back to using the BMIC version. 3809 */ 3810 error = ciss_notify_abort_bmic(sc); 3811 if (error != 0) 3812 goto out; 3813 break; 3814 3815 case CISS_CMD_STATUS_TARGET_STATUS: 3816 /* 3817 * This can happen if the adapter thinks there wasn't an outstanding 3818 * Notify Event command but we did. We clean up here. 3819 */ 3820 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) { 3821 if (sc->ciss_periodic_notify != NULL) 3822 ciss_release_request(sc->ciss_periodic_notify); 3823 error = 0; 3824 goto out; 3825 } 3826 /* FALLTHROUGH */ 3827 3828 default: 3829 ciss_printf(sc, "Abort Notify Event command failed (%s)\n", 3830 ciss_name_command_status(command_status)); 3831 error = EIO; 3832 goto out; 3833 } 3834 3835 /* 3836 * Sleep waiting for the notifier command to complete. Note 3837 * that if it doesn't, we may end up in a bad situation, since 3838 * the adapter may deliver it later. Also note that the adapter 3839 * requires the Notify Event command to be cancelled in order to 3840 * maintain internal bookkeeping. 3841 */ 3842 while (sc->ciss_periodic_notify != NULL) { 3843 error = msleep(&sc->ciss_periodic_notify, &sc->ciss_mtx, PRIBIO, "cissNEA", hz * 5); 3844 if (error == EWOULDBLOCK) { 3845 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n"); 3846 break; 3847 } 3848 } 3849 3850 out: 3851 /* release the cancel request */ 3852 if (cr != NULL) { 3853 if (cr->cr_data != NULL) 3854 free(cr->cr_data, CISS_MALLOC_CLASS); 3855 ciss_release_request(cr); 3856 } 3857 if (error == 0) 3858 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3859 return(error); 3860 } 3861 3862 /************************************************************************ 3863 * Abort the Notify Event chain using a BMIC command. 3864 */ 3865 static int 3866 ciss_notify_abort_bmic(struct ciss_softc *sc) 3867 { 3868 struct ciss_request *cr; 3869 int error, command_status; 3870 3871 debug_called(1); 3872 3873 cr = NULL; 3874 error = 0; 3875 3876 /* verify that there's an outstanding command */ 3877 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3878 goto out; 3879 3880 /* 3881 * Build a BMIC command to cancel the Notify on Event command. 3882 * 3883 * Note that we are sending a CISS opcode here. Odd. 3884 */ 3885 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY, 3886 NULL, 0)) != 0) 3887 goto out; 3888 3889 /* 3890 * Submit the request and wait for it to complete. 3891 */ 3892 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3893 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error); 3894 goto out; 3895 } 3896 3897 /* 3898 * Check response. 3899 */ 3900 ciss_report_request(cr, &command_status, NULL); 3901 switch(command_status) { 3902 case CISS_CMD_STATUS_SUCCESS: 3903 break; 3904 default: 3905 ciss_printf(sc, "error cancelling Notify on Event (%s)\n", 3906 ciss_name_command_status(command_status)); 3907 error = EIO; 3908 goto out; 3909 } 3910 3911 out: 3912 if (cr != NULL) 3913 ciss_release_request(cr); 3914 return(error); 3915 } 3916 3917 /************************************************************************ 3918 * Handle rescanning all the logical volumes when a notify event 3919 * causes the drives to come online or offline. 3920 */ 3921 static void 3922 ciss_notify_rescan_logical(struct ciss_softc *sc) 3923 { 3924 struct ciss_lun_report *cll; 3925 struct ciss_ldrive *ld; 3926 int i, j, ndrives; 3927 3928 /* 3929 * We must rescan all logical volumes to get the right logical 3930 * drive address. 3931 */ 3932 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 3933 sc->ciss_cfg->max_logical_supported); 3934 if (cll == NULL) 3935 return; 3936 3937 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 3938 3939 /* 3940 * Delete any of the drives which were destroyed by the 3941 * firmware. 3942 */ 3943 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 3944 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) { 3945 ld = &sc->ciss_logical[i][j]; 3946 3947 if (ld->cl_update == 0) 3948 continue; 3949 3950 if (ld->cl_status != CISS_LD_ONLINE) { 3951 ciss_cam_rescan_target(sc, i, j); 3952 ld->cl_update = 0; 3953 if (ld->cl_ldrive) 3954 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 3955 if (ld->cl_lstatus) 3956 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 3957 3958 ld->cl_ldrive = NULL; 3959 ld->cl_lstatus = NULL; 3960 } 3961 } 3962 } 3963 3964 /* 3965 * Scan for new drives. 3966 */ 3967 for (i = 0; i < ndrives; i++) { 3968 int bus, target; 3969 3970 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 3971 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 3972 ld = &sc->ciss_logical[bus][target]; 3973 3974 if (ld->cl_update == 0) 3975 continue; 3976 3977 ld->cl_update = 0; 3978 ld->cl_address = cll->lun[i]; 3979 ld->cl_controller = &sc->ciss_controllers[bus]; 3980 if (ciss_identify_logical(sc, ld) == 0) { 3981 ciss_cam_rescan_target(sc, bus, target); 3982 } 3983 } 3984 free(cll, CISS_MALLOC_CLASS); 3985 } 3986 3987 /************************************************************************ 3988 * Handle a notify event relating to the status of a logical drive. 3989 * 3990 * XXX need to be able to defer some of these to properly handle 3991 * calling the "ID Physical drive" command, unless the 'extended' 3992 * drive IDs are always in BIG_MAP format. 3993 */ 3994 static void 3995 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn) 3996 { 3997 struct ciss_ldrive *ld; 3998 int ostatus, bus, target; 3999 4000 debug_called(2); 4001 4002 bus = cn->device.physical.bus; 4003 target = cn->data.logical_status.logical_drive; 4004 ld = &sc->ciss_logical[bus][target]; 4005 4006 switch (cn->subclass) { 4007 case CISS_NOTIFY_LOGICAL_STATUS: 4008 switch (cn->detail) { 4009 case 0: 4010 ciss_name_device(sc, bus, target); 4011 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n", 4012 cn->data.logical_status.logical_drive, ld->cl_name, 4013 ciss_name_ldrive_status(cn->data.logical_status.previous_state), 4014 ciss_name_ldrive_status(cn->data.logical_status.new_state), 4015 cn->data.logical_status.spare_state, 4016 "\20\1configured\2rebuilding\3failed\4in use\5available\n"); 4017 4018 /* 4019 * Update our idea of the drive's status. 4020 */ 4021 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state); 4022 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 4023 if (ld->cl_lstatus != NULL) 4024 ld->cl_lstatus->status = cn->data.logical_status.new_state; 4025 4026 /* 4027 * Have CAM rescan the drive if its status has changed. 4028 */ 4029 if (ostatus != ld->cl_status) { 4030 ld->cl_update = 1; 4031 ciss_notify_rescan_logical(sc); 4032 } 4033 4034 break; 4035 4036 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */ 4037 ciss_name_device(sc, bus, target); 4038 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n", 4039 cn->data.logical_status.logical_drive, ld->cl_name); 4040 ciss_accept_media(sc, ld); 4041 4042 ld->cl_update = 1; 4043 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 4044 ciss_notify_rescan_logical(sc); 4045 break; 4046 4047 case 2: 4048 case 3: 4049 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n", 4050 cn->data.rebuild_aborted.logical_drive, 4051 ld->cl_name, 4052 (cn->detail == 2) ? "read" : "write"); 4053 break; 4054 } 4055 break; 4056 4057 case CISS_NOTIFY_LOGICAL_ERROR: 4058 if (cn->detail == 0) { 4059 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n", 4060 cn->data.io_error.logical_drive, 4061 ld->cl_name, 4062 cn->data.io_error.failure_bus, 4063 cn->data.io_error.failure_drive); 4064 /* XXX should we take the drive down at this point, or will we be told? */ 4065 } 4066 break; 4067 4068 case CISS_NOTIFY_LOGICAL_SURFACE: 4069 if (cn->detail == 0) 4070 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n", 4071 cn->data.consistency_completed.logical_drive, 4072 ld->cl_name); 4073 break; 4074 } 4075 } 4076 4077 /************************************************************************ 4078 * Handle a notify event relating to the status of a physical drive. 4079 */ 4080 static void 4081 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn) 4082 { 4083 } 4084 4085 /************************************************************************ 4086 * Handle a notify event relating to the status of a physical drive. 4087 */ 4088 static void 4089 ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn) 4090 { 4091 struct ciss_lun_report *cll = NULL; 4092 int bus, target; 4093 4094 switch (cn->subclass) { 4095 case CISS_NOTIFY_HOTPLUG_PHYSICAL: 4096 case CISS_NOTIFY_HOTPLUG_NONDISK: 4097 bus = CISS_BIG_MAP_BUS(sc, cn->data.drive.big_physical_drive_number); 4098 target = 4099 CISS_BIG_MAP_TARGET(sc, cn->data.drive.big_physical_drive_number); 4100 4101 if (cn->detail == 0) { 4102 /* 4103 * Mark the device offline so that it'll start producing selection 4104 * timeouts to the upper layer. 4105 */ 4106 if ((bus >= 0) && (target >= 0)) 4107 sc->ciss_physical[bus][target].cp_online = 0; 4108 } else { 4109 /* 4110 * Rescan the physical lun list for new items 4111 */ 4112 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 4113 sc->ciss_cfg->max_physical_supported); 4114 if (cll == NULL) { 4115 ciss_printf(sc, "Warning, cannot get physical lun list\n"); 4116 break; 4117 } 4118 ciss_filter_physical(sc, cll); 4119 } 4120 break; 4121 4122 default: 4123 ciss_printf(sc, "Unknown hotplug event %d\n", cn->subclass); 4124 return; 4125 } 4126 4127 if (cll != NULL) 4128 free(cll, CISS_MALLOC_CLASS); 4129 } 4130 4131 /************************************************************************ 4132 * Handle deferred processing of notify events. Notify events may need 4133 * sleep which is unsafe during an interrupt. 4134 */ 4135 static void 4136 ciss_notify_thread(void *arg) 4137 { 4138 struct ciss_softc *sc; 4139 struct ciss_request *cr; 4140 struct ciss_notify *cn; 4141 4142 sc = (struct ciss_softc *)arg; 4143 mtx_lock(&sc->ciss_mtx); 4144 4145 for (;;) { 4146 if (STAILQ_EMPTY(&sc->ciss_notify) != 0 && 4147 (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) == 0) { 4148 msleep(&sc->ciss_notify, &sc->ciss_mtx, PUSER, "idle", 0); 4149 } 4150 4151 if (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) 4152 break; 4153 4154 cr = ciss_dequeue_notify(sc); 4155 4156 if (cr == NULL) 4157 panic("cr null"); 4158 cn = (struct ciss_notify *)cr->cr_data; 4159 4160 switch (cn->class) { 4161 case CISS_NOTIFY_HOTPLUG: 4162 ciss_notify_hotplug(sc, cn); 4163 break; 4164 case CISS_NOTIFY_LOGICAL: 4165 ciss_notify_logical(sc, cn); 4166 break; 4167 case CISS_NOTIFY_PHYSICAL: 4168 ciss_notify_physical(sc, cn); 4169 break; 4170 } 4171 4172 ciss_release_request(cr); 4173 } 4174 sc->ciss_notify_thread = NULL; 4175 wakeup(&sc->ciss_notify_thread); 4176 4177 mtx_unlock(&sc->ciss_mtx); 4178 kproc_exit(0); 4179 } 4180 4181 /************************************************************************ 4182 * Start the notification kernel thread. 4183 */ 4184 static void 4185 ciss_spawn_notify_thread(struct ciss_softc *sc) 4186 { 4187 4188 if (kproc_create((void(*)(void *))ciss_notify_thread, sc, 4189 &sc->ciss_notify_thread, 0, 0, "ciss_notify%d", 4190 device_get_unit(sc->ciss_dev))) 4191 panic("Could not create notify thread\n"); 4192 } 4193 4194 /************************************************************************ 4195 * Kill the notification kernel thread. 4196 */ 4197 static void 4198 ciss_kill_notify_thread(struct ciss_softc *sc) 4199 { 4200 4201 if (sc->ciss_notify_thread == NULL) 4202 return; 4203 4204 sc->ciss_flags |= CISS_FLAG_THREAD_SHUT; 4205 wakeup(&sc->ciss_notify); 4206 msleep(&sc->ciss_notify_thread, &sc->ciss_mtx, PUSER, "thtrm", 0); 4207 } 4208 4209 /************************************************************************ 4210 * Print a request. 4211 */ 4212 #ifdef DDB 4213 static void 4214 ciss_print_request(struct ciss_request *cr) 4215 { 4216 struct ciss_softc *sc; 4217 struct ciss_command *cc; 4218 int i; 4219 4220 sc = cr->cr_sc; 4221 cc = cr->cr_cc; 4222 4223 ciss_printf(sc, "REQUEST @ %p\n", cr); 4224 ciss_printf(sc, " data %p/%d tag %d flags %b\n", 4225 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags, 4226 "\20\1mapped\2sleep\3poll\4dataout\5datain\n"); 4227 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n", 4228 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag); 4229 switch(cc->header.address.mode.mode) { 4230 case CISS_HDR_ADDRESS_MODE_PERIPHERAL: 4231 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL: 4232 ciss_printf(sc, " physical bus %d target %d\n", 4233 cc->header.address.physical.bus, cc->header.address.physical.target); 4234 break; 4235 case CISS_HDR_ADDRESS_MODE_LOGICAL: 4236 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun); 4237 break; 4238 } 4239 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n", 4240 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" : 4241 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" : 4242 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??", 4243 cc->cdb.cdb_length, 4244 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" : 4245 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??", 4246 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" : 4247 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" : 4248 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" : 4249 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" : 4250 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??"); 4251 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " "); 4252 4253 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) { 4254 /* XXX print error info */ 4255 } else { 4256 /* since we don't use chained s/g, don't support it here */ 4257 for (i = 0; i < cc->header.sg_in_list; i++) { 4258 if ((i % 4) == 0) 4259 ciss_printf(sc, " "); 4260 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length); 4261 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1))) 4262 printf("\n"); 4263 } 4264 } 4265 } 4266 #endif 4267 4268 /************************************************************************ 4269 * Print information about the status of a logical drive. 4270 */ 4271 static void 4272 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld) 4273 { 4274 int bus, target, i; 4275 4276 if (ld->cl_lstatus == NULL) { 4277 printf("does not exist\n"); 4278 return; 4279 } 4280 4281 /* print drive status */ 4282 switch(ld->cl_lstatus->status) { 4283 case CISS_LSTATUS_OK: 4284 printf("online\n"); 4285 break; 4286 case CISS_LSTATUS_INTERIM_RECOVERY: 4287 printf("in interim recovery mode\n"); 4288 break; 4289 case CISS_LSTATUS_READY_RECOVERY: 4290 printf("ready to begin recovery\n"); 4291 break; 4292 case CISS_LSTATUS_RECOVERING: 4293 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4294 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4295 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n", 4296 bus, target, ld->cl_lstatus->blocks_to_recover); 4297 break; 4298 case CISS_LSTATUS_EXPANDING: 4299 printf("being expanded, %u blocks remaining\n", 4300 ld->cl_lstatus->blocks_to_recover); 4301 break; 4302 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4303 printf("queued for expansion\n"); 4304 break; 4305 case CISS_LSTATUS_FAILED: 4306 printf("queued for expansion\n"); 4307 break; 4308 case CISS_LSTATUS_WRONG_PDRIVE: 4309 printf("wrong physical drive inserted\n"); 4310 break; 4311 case CISS_LSTATUS_MISSING_PDRIVE: 4312 printf("missing a needed physical drive\n"); 4313 break; 4314 case CISS_LSTATUS_BECOMING_READY: 4315 printf("becoming ready\n"); 4316 break; 4317 } 4318 4319 /* print failed physical drives */ 4320 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) { 4321 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]); 4322 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]); 4323 if (bus == -1) 4324 continue; 4325 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target, 4326 ld->cl_lstatus->drive_failure_map[i]); 4327 } 4328 } 4329 4330 #ifdef DDB 4331 #include <ddb/ddb.h> 4332 /************************************************************************ 4333 * Print information about the controller/driver. 4334 */ 4335 static void 4336 ciss_print_adapter(struct ciss_softc *sc) 4337 { 4338 int i, j; 4339 4340 ciss_printf(sc, "ADAPTER:\n"); 4341 for (i = 0; i < CISSQ_COUNT; i++) { 4342 ciss_printf(sc, "%s %d/%d\n", 4343 i == 0 ? "free" : 4344 i == 1 ? "busy" : "complete", 4345 sc->ciss_qstat[i].q_length, 4346 sc->ciss_qstat[i].q_max); 4347 } 4348 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests); 4349 ciss_printf(sc, "flags %b\n", sc->ciss_flags, 4350 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n"); 4351 4352 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 4353 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) { 4354 ciss_printf(sc, "LOGICAL DRIVE %d: ", i); 4355 ciss_print_ldrive(sc, &sc->ciss_logical[i][j]); 4356 } 4357 } 4358 4359 /* XXX Should physical drives be printed out here? */ 4360 4361 for (i = 1; i < sc->ciss_max_requests; i++) 4362 ciss_print_request(sc->ciss_request + i); 4363 } 4364 4365 /* DDB hook */ 4366 DB_COMMAND(ciss_prt, db_ciss_prt) 4367 { 4368 struct ciss_softc *sc; 4369 devclass_t dc; 4370 int maxciss, i; 4371 4372 dc = devclass_find("ciss"); 4373 if ( dc == NULL ) { 4374 printf("%s: can't find devclass!\n", __func__); 4375 return; 4376 } 4377 maxciss = devclass_get_maxunit(dc); 4378 for (i = 0; i < maxciss; i++) { 4379 sc = devclass_get_softc(dc, i); 4380 ciss_print_adapter(sc); 4381 } 4382 } 4383 #endif 4384 4385 /************************************************************************ 4386 * Return a name for a logical drive status value. 4387 */ 4388 static const char * 4389 ciss_name_ldrive_status(int status) 4390 { 4391 switch (status) { 4392 case CISS_LSTATUS_OK: 4393 return("OK"); 4394 case CISS_LSTATUS_FAILED: 4395 return("failed"); 4396 case CISS_LSTATUS_NOT_CONFIGURED: 4397 return("not configured"); 4398 case CISS_LSTATUS_INTERIM_RECOVERY: 4399 return("interim recovery"); 4400 case CISS_LSTATUS_READY_RECOVERY: 4401 return("ready for recovery"); 4402 case CISS_LSTATUS_RECOVERING: 4403 return("recovering"); 4404 case CISS_LSTATUS_WRONG_PDRIVE: 4405 return("wrong physical drive inserted"); 4406 case CISS_LSTATUS_MISSING_PDRIVE: 4407 return("missing physical drive"); 4408 case CISS_LSTATUS_EXPANDING: 4409 return("expanding"); 4410 case CISS_LSTATUS_BECOMING_READY: 4411 return("becoming ready"); 4412 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4413 return("queued for expansion"); 4414 } 4415 return("unknown status"); 4416 } 4417 4418 /************************************************************************ 4419 * Return an online/offline/nonexistent value for a logical drive 4420 * status value. 4421 */ 4422 static int 4423 ciss_decode_ldrive_status(int status) 4424 { 4425 switch(status) { 4426 case CISS_LSTATUS_NOT_CONFIGURED: 4427 return(CISS_LD_NONEXISTENT); 4428 4429 case CISS_LSTATUS_OK: 4430 case CISS_LSTATUS_INTERIM_RECOVERY: 4431 case CISS_LSTATUS_READY_RECOVERY: 4432 case CISS_LSTATUS_RECOVERING: 4433 case CISS_LSTATUS_EXPANDING: 4434 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4435 return(CISS_LD_ONLINE); 4436 4437 case CISS_LSTATUS_FAILED: 4438 case CISS_LSTATUS_WRONG_PDRIVE: 4439 case CISS_LSTATUS_MISSING_PDRIVE: 4440 case CISS_LSTATUS_BECOMING_READY: 4441 default: 4442 return(CISS_LD_OFFLINE); 4443 } 4444 } 4445 4446 /************************************************************************ 4447 * Return a name for a logical drive's organisation. 4448 */ 4449 static const char * 4450 ciss_name_ldrive_org(int org) 4451 { 4452 switch(org) { 4453 case CISS_LDRIVE_RAID0: 4454 return("RAID 0"); 4455 case CISS_LDRIVE_RAID1: 4456 return("RAID 1(1+0)"); 4457 case CISS_LDRIVE_RAID4: 4458 return("RAID 4"); 4459 case CISS_LDRIVE_RAID5: 4460 return("RAID 5"); 4461 case CISS_LDRIVE_RAID51: 4462 return("RAID 5+1"); 4463 case CISS_LDRIVE_RAIDADG: 4464 return("RAID ADG"); 4465 } 4466 return("unknown"); 4467 } 4468 4469 /************************************************************************ 4470 * Return a name for a command status value. 4471 */ 4472 static const char * 4473 ciss_name_command_status(int status) 4474 { 4475 switch(status) { 4476 case CISS_CMD_STATUS_SUCCESS: 4477 return("success"); 4478 case CISS_CMD_STATUS_TARGET_STATUS: 4479 return("target status"); 4480 case CISS_CMD_STATUS_DATA_UNDERRUN: 4481 return("data underrun"); 4482 case CISS_CMD_STATUS_DATA_OVERRUN: 4483 return("data overrun"); 4484 case CISS_CMD_STATUS_INVALID_COMMAND: 4485 return("invalid command"); 4486 case CISS_CMD_STATUS_PROTOCOL_ERROR: 4487 return("protocol error"); 4488 case CISS_CMD_STATUS_HARDWARE_ERROR: 4489 return("hardware error"); 4490 case CISS_CMD_STATUS_CONNECTION_LOST: 4491 return("connection lost"); 4492 case CISS_CMD_STATUS_ABORTED: 4493 return("aborted"); 4494 case CISS_CMD_STATUS_ABORT_FAILED: 4495 return("abort failed"); 4496 case CISS_CMD_STATUS_UNSOLICITED_ABORT: 4497 return("unsolicited abort"); 4498 case CISS_CMD_STATUS_TIMEOUT: 4499 return("timeout"); 4500 case CISS_CMD_STATUS_UNABORTABLE: 4501 return("unabortable"); 4502 } 4503 return("unknown status"); 4504 } 4505 4506 /************************************************************************ 4507 * Handle an open on the control device. 4508 */ 4509 static int 4510 ciss_open(struct cdev *dev, int flags, int fmt, struct thread *p) 4511 { 4512 struct ciss_softc *sc; 4513 4514 debug_called(1); 4515 4516 sc = (struct ciss_softc *)dev->si_drv1; 4517 4518 /* we might want to veto if someone already has us open */ 4519 4520 mtx_lock(&sc->ciss_mtx); 4521 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN; 4522 mtx_unlock(&sc->ciss_mtx); 4523 return(0); 4524 } 4525 4526 /************************************************************************ 4527 * Handle the last close on the control device. 4528 */ 4529 static int 4530 ciss_close(struct cdev *dev, int flags, int fmt, struct thread *p) 4531 { 4532 struct ciss_softc *sc; 4533 4534 debug_called(1); 4535 4536 sc = (struct ciss_softc *)dev->si_drv1; 4537 4538 mtx_lock(&sc->ciss_mtx); 4539 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN; 4540 mtx_unlock(&sc->ciss_mtx); 4541 return (0); 4542 } 4543 4544 /******************************************************************************** 4545 * Handle adapter-specific control operations. 4546 * 4547 * Note that the API here is compatible with the Linux driver, in order to 4548 * simplify the porting of Compaq's userland tools. 4549 */ 4550 static int 4551 ciss_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag, struct thread *p) 4552 { 4553 struct ciss_softc *sc; 4554 IOCTL_Command_struct *ioc = (IOCTL_Command_struct *)addr; 4555 #ifdef __amd64__ 4556 IOCTL_Command_struct32 *ioc32 = (IOCTL_Command_struct32 *)addr; 4557 IOCTL_Command_struct ioc_swab; 4558 #endif 4559 int error; 4560 4561 debug_called(1); 4562 4563 sc = (struct ciss_softc *)dev->si_drv1; 4564 error = 0; 4565 mtx_lock(&sc->ciss_mtx); 4566 4567 switch(cmd) { 4568 case CCISS_GETQSTATS: 4569 { 4570 union ciss_statrequest *cr = (union ciss_statrequest *)addr; 4571 4572 switch (cr->cs_item) { 4573 case CISSQ_FREE: 4574 case CISSQ_NOTIFY: 4575 bcopy(&sc->ciss_qstat[cr->cs_item], &cr->cs_qstat, 4576 sizeof(struct ciss_qstat)); 4577 break; 4578 default: 4579 error = ENOIOCTL; 4580 break; 4581 } 4582 4583 break; 4584 } 4585 4586 case CCISS_GETPCIINFO: 4587 { 4588 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr; 4589 4590 pis->bus = pci_get_bus(sc->ciss_dev); 4591 pis->dev_fn = pci_get_slot(sc->ciss_dev); 4592 pis->board_id = (pci_get_subvendor(sc->ciss_dev) << 16) | 4593 pci_get_subdevice(sc->ciss_dev); 4594 4595 break; 4596 } 4597 4598 case CCISS_GETINTINFO: 4599 { 4600 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4601 4602 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay; 4603 cis->count = sc->ciss_cfg->interrupt_coalesce_count; 4604 4605 break; 4606 } 4607 4608 case CCISS_SETINTINFO: 4609 { 4610 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4611 4612 if ((cis->delay == 0) && (cis->count == 0)) { 4613 error = EINVAL; 4614 break; 4615 } 4616 4617 /* 4618 * XXX apparently this is only safe if the controller is idle, 4619 * we should suspend it before doing this. 4620 */ 4621 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay; 4622 sc->ciss_cfg->interrupt_coalesce_count = cis->count; 4623 4624 if (ciss_update_config(sc)) 4625 error = EIO; 4626 4627 /* XXX resume the controller here */ 4628 break; 4629 } 4630 4631 case CCISS_GETNODENAME: 4632 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr, 4633 sizeof(NodeName_type)); 4634 break; 4635 4636 case CCISS_SETNODENAME: 4637 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name, 4638 sizeof(NodeName_type)); 4639 if (ciss_update_config(sc)) 4640 error = EIO; 4641 break; 4642 4643 case CCISS_GETHEARTBEAT: 4644 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat; 4645 break; 4646 4647 case CCISS_GETBUSTYPES: 4648 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types; 4649 break; 4650 4651 case CCISS_GETFIRMVER: 4652 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr, 4653 sizeof(FirmwareVer_type)); 4654 break; 4655 4656 case CCISS_GETDRIVERVER: 4657 *(DriverVer_type *)addr = CISS_DRIVER_VERSION; 4658 break; 4659 4660 case CCISS_REVALIDVOLS: 4661 /* 4662 * This is a bit ugly; to do it "right" we really need 4663 * to find any disks that have changed, kick CAM off them, 4664 * then rescan only these disks. It'd be nice if they 4665 * a) told us which disk(s) they were going to play with, 4666 * and b) which ones had arrived. 8( 4667 */ 4668 break; 4669 4670 #ifdef __amd64__ 4671 case CCISS_PASSTHRU32: 4672 ioc_swab.LUN_info = ioc32->LUN_info; 4673 ioc_swab.Request = ioc32->Request; 4674 ioc_swab.error_info = ioc32->error_info; 4675 ioc_swab.buf_size = ioc32->buf_size; 4676 ioc_swab.buf = (u_int8_t *)(uintptr_t)ioc32->buf; 4677 ioc = &ioc_swab; 4678 /* FALLTHROUGH */ 4679 #endif 4680 4681 case CCISS_PASSTHRU: 4682 error = ciss_user_command(sc, ioc); 4683 break; 4684 4685 default: 4686 debug(0, "unknown ioctl 0x%lx", cmd); 4687 4688 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO); 4689 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO); 4690 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO); 4691 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME); 4692 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME); 4693 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT); 4694 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES); 4695 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER); 4696 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER); 4697 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS); 4698 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU); 4699 4700 error = ENOIOCTL; 4701 break; 4702 } 4703 4704 mtx_unlock(&sc->ciss_mtx); 4705 return(error); 4706 } 4707