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, target; 1493 1494 debug_called(1); 1495 1496 bus = 0; 1497 target = 0; 1498 1499 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 1500 sc->ciss_cfg->max_physical_supported); 1501 if (cll == NULL) { 1502 error = ENXIO; 1503 goto out; 1504 } 1505 1506 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1507 1508 if (bootverbose) { 1509 ciss_printf(sc, "%d physical device%s\n", 1510 nphys, (nphys > 1 || nphys == 0) ? "s" : ""); 1511 } 1512 1513 /* 1514 * Figure out the bus mapping. 1515 * Logical buses include both the local logical bus for local arrays and 1516 * proxy buses for remote arrays. Physical buses are numbered by the 1517 * controller and represent physical buses that hold physical devices. 1518 * We shift these bus numbers so that everything fits into a single flat 1519 * numbering space for CAM. Logical buses occupy the first 32 CAM bus 1520 * numbers, and the physical bus numbers are shifted to be above that. 1521 * This results in the various driver arrays being indexed as follows: 1522 * 1523 * ciss_controllers[] - indexed by logical bus 1524 * ciss_cam_sim[] - indexed by both logical and physical, with physical 1525 * being shifted by 32. 1526 * ciss_logical[][] - indexed by logical bus 1527 * ciss_physical[][] - indexed by physical bus 1528 * 1529 * XXX This is getting more and more hackish. CISS really doesn't play 1530 * well with a standard SCSI model; devices are addressed via magic 1531 * cookies, not via b/t/l addresses. Since there is no way to store 1532 * the cookie in the CAM device object, we have to keep these lookup 1533 * tables handy so that the devices can be found quickly at the cost 1534 * of wasting memory and having a convoluted lookup scheme. This 1535 * driver should probably be converted to block interface. 1536 */ 1537 /* 1538 * If the L2 and L3 SCSI addresses are 0, this signifies a proxy 1539 * controller. A proxy controller is another physical controller 1540 * behind the primary PCI controller. We need to know about this 1541 * so that BMIC commands can be properly targeted. There can be 1542 * proxy controllers attached to a single PCI controller, so 1543 * find the highest numbered one so the array can be properly 1544 * sized. 1545 */ 1546 sc->ciss_max_logical_bus = 1; 1547 for (i = 0; i < nphys; i++) { 1548 if (cll->lun[i].physical.extra_address == 0) { 1549 bus = cll->lun[i].physical.bus; 1550 sc->ciss_max_logical_bus = max(sc->ciss_max_logical_bus, bus) + 1; 1551 } else { 1552 bus = CISS_EXTRA_BUS2(cll->lun[i].physical.extra_address); 1553 sc->ciss_max_physical_bus = max(sc->ciss_max_physical_bus, bus); 1554 } 1555 } 1556 1557 sc->ciss_controllers = 1558 malloc(sc->ciss_max_logical_bus * sizeof (union ciss_device_address), 1559 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1560 1561 if (sc->ciss_controllers == NULL) { 1562 ciss_printf(sc, "Could not allocate memory for controller map\n"); 1563 error = ENOMEM; 1564 goto out; 1565 } 1566 1567 /* setup a map of controller addresses */ 1568 for (i = 0; i < nphys; i++) { 1569 if (cll->lun[i].physical.extra_address == 0) { 1570 sc->ciss_controllers[cll->lun[i].physical.bus] = cll->lun[i]; 1571 } 1572 } 1573 1574 sc->ciss_physical = 1575 malloc(sc->ciss_max_physical_bus * sizeof(struct ciss_pdrive *), 1576 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1577 if (sc->ciss_physical == NULL) { 1578 ciss_printf(sc, "Could not allocate memory for physical device map\n"); 1579 error = ENOMEM; 1580 goto out; 1581 } 1582 1583 for (i = 0; i < sc->ciss_max_physical_bus; i++) { 1584 sc->ciss_physical[i] = 1585 malloc(sizeof(struct ciss_pdrive) * CISS_MAX_PHYSTGT, 1586 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1587 if (sc->ciss_physical[i] == NULL) { 1588 ciss_printf(sc, "Could not allocate memory for target map\n"); 1589 error = ENOMEM; 1590 goto out; 1591 } 1592 } 1593 1594 ciss_filter_physical(sc, cll); 1595 1596 out: 1597 if (cll != NULL) 1598 free(cll, CISS_MALLOC_CLASS); 1599 1600 return(error); 1601 } 1602 1603 static int 1604 ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll) 1605 { 1606 u_int32_t ea; 1607 int i, nphys; 1608 int bus, target; 1609 1610 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1611 for (i = 0; i < nphys; i++) { 1612 if (cll->lun[i].physical.extra_address == 0) 1613 continue; 1614 1615 /* 1616 * Filter out devices that we don't want. Level 3 LUNs could 1617 * probably be supported, but the docs don't give enough of a 1618 * hint to know how. 1619 * 1620 * The mode field of the physical address is likely set to have 1621 * hard disks masked out. Honor it unless the user has overridden 1622 * us with the tunable. We also munge the inquiry data for these 1623 * disks so that they only show up as passthrough devices. Keeping 1624 * them visible in this fashion is useful for doing things like 1625 * flashing firmware. 1626 */ 1627 ea = cll->lun[i].physical.extra_address; 1628 if ((CISS_EXTRA_BUS3(ea) != 0) || (CISS_EXTRA_TARGET3(ea) != 0) || 1629 (CISS_EXTRA_MODE2(ea) == 0x3)) 1630 continue; 1631 if ((ciss_expose_hidden_physical == 0) && 1632 (cll->lun[i].physical.mode == CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL)) 1633 continue; 1634 1635 /* 1636 * Note: CISS firmware numbers physical busses starting at '1', not 1637 * '0'. This numbering is internal to the firmware and is only 1638 * used as a hint here. 1639 */ 1640 bus = CISS_EXTRA_BUS2(ea) - 1; 1641 target = CISS_EXTRA_TARGET2(ea); 1642 sc->ciss_physical[bus][target].cp_address = cll->lun[i]; 1643 sc->ciss_physical[bus][target].cp_online = 1; 1644 } 1645 1646 return (0); 1647 } 1648 1649 static int 1650 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1651 { 1652 struct ciss_request *cr; 1653 struct ciss_command *cc; 1654 struct scsi_inquiry *inq; 1655 int error; 1656 int command_status; 1657 1658 cr = NULL; 1659 1660 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry)); 1661 1662 if ((error = ciss_get_request(sc, &cr)) != 0) 1663 goto out; 1664 1665 cc = cr->cr_cc; 1666 cr->cr_data = &ld->cl_geometry; 1667 cr->cr_length = sizeof(ld->cl_geometry); 1668 cr->cr_flags = CISS_REQ_DATAIN; 1669 1670 cc->header.address = ld->cl_address; 1671 cc->cdb.cdb_length = 6; 1672 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1673 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1674 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1675 cc->cdb.timeout = 30; 1676 1677 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]); 1678 inq->opcode = INQUIRY; 1679 inq->byte2 = SI_EVPD; 1680 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY; 1681 scsi_ulto2b(sizeof(ld->cl_geometry), inq->length); 1682 1683 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1684 ciss_printf(sc, "error getting geometry (%d)\n", error); 1685 goto out; 1686 } 1687 1688 ciss_report_request(cr, &command_status, NULL); 1689 switch(command_status) { 1690 case CISS_CMD_STATUS_SUCCESS: 1691 case CISS_CMD_STATUS_DATA_UNDERRUN: 1692 break; 1693 case CISS_CMD_STATUS_DATA_OVERRUN: 1694 ciss_printf(sc, "WARNING: Data overrun\n"); 1695 break; 1696 default: 1697 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n", 1698 ciss_name_command_status(command_status)); 1699 break; 1700 } 1701 1702 out: 1703 if (cr != NULL) 1704 ciss_release_request(cr); 1705 return(error); 1706 } 1707 /************************************************************************ 1708 * Identify a logical drive, initialise state related to it. 1709 */ 1710 static int 1711 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1712 { 1713 struct ciss_request *cr; 1714 struct ciss_command *cc; 1715 struct ciss_bmic_cdb *cbc; 1716 int error, command_status; 1717 1718 debug_called(1); 1719 1720 cr = NULL; 1721 1722 /* 1723 * Build a BMIC request to fetch the drive ID. 1724 */ 1725 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE, 1726 (void **)&ld->cl_ldrive, 1727 sizeof(*ld->cl_ldrive))) != 0) 1728 goto out; 1729 cc = cr->cr_cc; 1730 cc->header.address = *ld->cl_controller; /* target controller */ 1731 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1732 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1733 1734 /* 1735 * Submit the request and wait for it to complete. 1736 */ 1737 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1738 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error); 1739 goto out; 1740 } 1741 1742 /* 1743 * Check response. 1744 */ 1745 ciss_report_request(cr, &command_status, NULL); 1746 switch(command_status) { 1747 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1748 break; 1749 case CISS_CMD_STATUS_DATA_UNDERRUN: 1750 case CISS_CMD_STATUS_DATA_OVERRUN: 1751 ciss_printf(sc, "data over/underrun reading logical drive ID\n"); 1752 default: 1753 ciss_printf(sc, "error reading logical drive ID (%s)\n", 1754 ciss_name_command_status(command_status)); 1755 error = EIO; 1756 goto out; 1757 } 1758 ciss_release_request(cr); 1759 cr = NULL; 1760 1761 /* 1762 * Build a CISS BMIC command to get the logical drive status. 1763 */ 1764 if ((error = ciss_get_ldrive_status(sc, ld)) != 0) 1765 goto out; 1766 1767 /* 1768 * Get the logical drive geometry. 1769 */ 1770 if ((error = ciss_inquiry_logical(sc, ld)) != 0) 1771 goto out; 1772 1773 /* 1774 * Print the drive's basic characteristics. 1775 */ 1776 if (bootverbose) { 1777 ciss_printf(sc, "logical drive (b%dt%d): %s, %dMB ", 1778 CISS_LUN_TO_BUS(ld->cl_address.logical.lun), 1779 CISS_LUN_TO_TARGET(ld->cl_address.logical.lun), 1780 ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance), 1781 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) * 1782 ld->cl_ldrive->block_size)); 1783 1784 ciss_print_ldrive(sc, ld); 1785 } 1786 out: 1787 if (error != 0) { 1788 /* make the drive not-exist */ 1789 ld->cl_status = CISS_LD_NONEXISTENT; 1790 if (ld->cl_ldrive != NULL) { 1791 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 1792 ld->cl_ldrive = NULL; 1793 } 1794 if (ld->cl_lstatus != NULL) { 1795 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 1796 ld->cl_lstatus = NULL; 1797 } 1798 } 1799 if (cr != NULL) 1800 ciss_release_request(cr); 1801 1802 return(error); 1803 } 1804 1805 /************************************************************************ 1806 * Get status for a logical drive. 1807 * 1808 * XXX should we also do this in response to Test Unit Ready? 1809 */ 1810 static int 1811 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld) 1812 { 1813 struct ciss_request *cr; 1814 struct ciss_command *cc; 1815 struct ciss_bmic_cdb *cbc; 1816 int error, command_status; 1817 1818 /* 1819 * Build a CISS BMIC command to get the logical drive status. 1820 */ 1821 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS, 1822 (void **)&ld->cl_lstatus, 1823 sizeof(*ld->cl_lstatus))) != 0) 1824 goto out; 1825 cc = cr->cr_cc; 1826 cc->header.address = *ld->cl_controller; /* target controller */ 1827 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1828 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1829 1830 /* 1831 * Submit the request and wait for it to complete. 1832 */ 1833 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1834 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1835 goto out; 1836 } 1837 1838 /* 1839 * Check response. 1840 */ 1841 ciss_report_request(cr, &command_status, NULL); 1842 switch(command_status) { 1843 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1844 break; 1845 case CISS_CMD_STATUS_DATA_UNDERRUN: 1846 case CISS_CMD_STATUS_DATA_OVERRUN: 1847 ciss_printf(sc, "data over/underrun reading logical drive status\n"); 1848 default: 1849 ciss_printf(sc, "error reading logical drive status (%s)\n", 1850 ciss_name_command_status(command_status)); 1851 error = EIO; 1852 goto out; 1853 } 1854 1855 /* 1856 * Set the drive's summary status based on the returned status. 1857 * 1858 * XXX testing shows that a failed JBOD drive comes back at next 1859 * boot in "queued for expansion" mode. WTF? 1860 */ 1861 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status); 1862 1863 out: 1864 if (cr != NULL) 1865 ciss_release_request(cr); 1866 return(error); 1867 } 1868 1869 /************************************************************************ 1870 * Notify the adapter of a config update. 1871 */ 1872 static int 1873 ciss_update_config(struct ciss_softc *sc) 1874 { 1875 int i; 1876 1877 debug_called(1); 1878 1879 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE); 1880 for (i = 0; i < 1000; i++) { 1881 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) & 1882 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) { 1883 return(0); 1884 } 1885 DELAY(1000); 1886 } 1887 return(1); 1888 } 1889 1890 /************************************************************************ 1891 * Accept new media into a logical drive. 1892 * 1893 * XXX The drive has previously been offline; it would be good if we 1894 * could make sure it's not open right now. 1895 */ 1896 static int 1897 ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld) 1898 { 1899 struct ciss_request *cr; 1900 struct ciss_command *cc; 1901 struct ciss_bmic_cdb *cbc; 1902 int command_status; 1903 int error = 0, ldrive; 1904 1905 ldrive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1906 1907 debug(0, "bringing logical drive %d back online", ldrive); 1908 1909 /* 1910 * Build a CISS BMIC command to bring the drive back online. 1911 */ 1912 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA, 1913 NULL, 0)) != 0) 1914 goto out; 1915 cc = cr->cr_cc; 1916 cc->header.address = *ld->cl_controller; /* target controller */ 1917 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1918 cbc->log_drive = ldrive; 1919 1920 /* 1921 * Submit the request and wait for it to complete. 1922 */ 1923 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1924 ciss_printf(sc, "error sending BMIC ACCEPT MEDIA command (%d)\n", error); 1925 goto out; 1926 } 1927 1928 /* 1929 * Check response. 1930 */ 1931 ciss_report_request(cr, &command_status, NULL); 1932 switch(command_status) { 1933 case CISS_CMD_STATUS_SUCCESS: /* all OK */ 1934 /* we should get a logical drive status changed event here */ 1935 break; 1936 default: 1937 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n", 1938 ciss_name_command_status(command_status)); 1939 break; 1940 } 1941 1942 out: 1943 if (cr != NULL) 1944 ciss_release_request(cr); 1945 return(error); 1946 } 1947 1948 /************************************************************************ 1949 * Release adapter resources. 1950 */ 1951 static void 1952 ciss_free(struct ciss_softc *sc) 1953 { 1954 struct ciss_request *cr; 1955 int i, j; 1956 1957 debug_called(1); 1958 1959 /* we're going away */ 1960 sc->ciss_flags |= CISS_FLAG_ABORTING; 1961 1962 /* terminate the periodic heartbeat routine */ 1963 callout_stop(&sc->ciss_periodic); 1964 1965 /* cancel the Event Notify chain */ 1966 ciss_notify_abort(sc); 1967 1968 ciss_kill_notify_thread(sc); 1969 1970 /* disconnect from CAM */ 1971 if (sc->ciss_cam_sim) { 1972 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1973 if (sc->ciss_cam_sim[i]) { 1974 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1975 cam_sim_free(sc->ciss_cam_sim[i], 0); 1976 } 1977 } 1978 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 1979 CISS_PHYSICAL_BASE; i++) { 1980 if (sc->ciss_cam_sim[i]) { 1981 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 1982 cam_sim_free(sc->ciss_cam_sim[i], 0); 1983 } 1984 } 1985 free(sc->ciss_cam_sim, CISS_MALLOC_CLASS); 1986 } 1987 if (sc->ciss_cam_devq) 1988 cam_simq_free(sc->ciss_cam_devq); 1989 1990 /* remove the control device */ 1991 mtx_unlock(&sc->ciss_mtx); 1992 if (sc->ciss_dev_t != NULL) 1993 destroy_dev(sc->ciss_dev_t); 1994 1995 /* Final cleanup of the callout. */ 1996 callout_drain(&sc->ciss_periodic); 1997 mtx_destroy(&sc->ciss_mtx); 1998 1999 /* free the controller data */ 2000 if (sc->ciss_id != NULL) 2001 free(sc->ciss_id, CISS_MALLOC_CLASS); 2002 2003 /* release I/O resources */ 2004 if (sc->ciss_regs_resource != NULL) 2005 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 2006 sc->ciss_regs_rid, sc->ciss_regs_resource); 2007 if (sc->ciss_cfg_resource != NULL) 2008 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 2009 sc->ciss_cfg_rid, sc->ciss_cfg_resource); 2010 if (sc->ciss_intr != NULL) 2011 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr); 2012 if (sc->ciss_irq_resource != NULL) 2013 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ, 2014 sc->ciss_irq_rid[0], sc->ciss_irq_resource); 2015 if (sc->ciss_msi) 2016 pci_release_msi(sc->ciss_dev); 2017 2018 while ((cr = ciss_dequeue_free(sc)) != NULL) 2019 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap); 2020 if (sc->ciss_buffer_dmat) 2021 bus_dma_tag_destroy(sc->ciss_buffer_dmat); 2022 2023 /* destroy command memory and DMA tag */ 2024 if (sc->ciss_command != NULL) { 2025 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map); 2026 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map); 2027 } 2028 if (sc->ciss_command_dmat) 2029 bus_dma_tag_destroy(sc->ciss_command_dmat); 2030 2031 if (sc->ciss_reply) { 2032 bus_dmamap_unload(sc->ciss_reply_dmat, sc->ciss_reply_map); 2033 bus_dmamem_free(sc->ciss_reply_dmat, sc->ciss_reply, sc->ciss_reply_map); 2034 } 2035 if (sc->ciss_reply_dmat) 2036 bus_dma_tag_destroy(sc->ciss_reply_dmat); 2037 2038 /* destroy DMA tags */ 2039 if (sc->ciss_parent_dmat) 2040 bus_dma_tag_destroy(sc->ciss_parent_dmat); 2041 if (sc->ciss_logical) { 2042 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 2043 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) { 2044 if (sc->ciss_logical[i][j].cl_ldrive) 2045 free(sc->ciss_logical[i][j].cl_ldrive, CISS_MALLOC_CLASS); 2046 if (sc->ciss_logical[i][j].cl_lstatus) 2047 free(sc->ciss_logical[i][j].cl_lstatus, CISS_MALLOC_CLASS); 2048 } 2049 free(sc->ciss_logical[i], CISS_MALLOC_CLASS); 2050 } 2051 free(sc->ciss_logical, CISS_MALLOC_CLASS); 2052 } 2053 2054 if (sc->ciss_physical) { 2055 for (i = 0; i < sc->ciss_max_physical_bus; i++) 2056 free(sc->ciss_physical[i], CISS_MALLOC_CLASS); 2057 free(sc->ciss_physical, CISS_MALLOC_CLASS); 2058 } 2059 2060 if (sc->ciss_controllers) 2061 free(sc->ciss_controllers, CISS_MALLOC_CLASS); 2062 2063 } 2064 2065 /************************************************************************ 2066 * Give a command to the adapter. 2067 * 2068 * Note that this uses the simple transport layer directly. If we 2069 * want to add support for other layers, we'll need a switch of some 2070 * sort. 2071 * 2072 * Note that the simple transport layer has no way of refusing a 2073 * command; we only have as many request structures as the adapter 2074 * supports commands, so we don't have to check (this presumes that 2075 * the adapter can handle commands as fast as we throw them at it). 2076 */ 2077 static int 2078 ciss_start(struct ciss_request *cr) 2079 { 2080 struct ciss_command *cc; /* XXX debugging only */ 2081 int error; 2082 2083 cc = cr->cr_cc; 2084 debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag); 2085 2086 /* 2087 * Map the request's data. 2088 */ 2089 if ((error = ciss_map_request(cr))) 2090 return(error); 2091 2092 #if 0 2093 ciss_print_request(cr); 2094 #endif 2095 2096 return(0); 2097 } 2098 2099 /************************************************************************ 2100 * Fetch completed request(s) from the adapter, queue them for 2101 * completion handling. 2102 * 2103 * Note that this uses the simple transport layer directly. If we 2104 * want to add support for other layers, we'll need a switch of some 2105 * sort. 2106 * 2107 * Note that the simple transport mechanism does not require any 2108 * reentrancy protection; the OPQ read is atomic. If there is a 2109 * chance of a race with something else that might move the request 2110 * off the busy list, then we will have to lock against that 2111 * (eg. timeouts, etc.) 2112 */ 2113 static void 2114 ciss_done(struct ciss_softc *sc, cr_qhead_t *qh) 2115 { 2116 struct ciss_request *cr; 2117 struct ciss_command *cc; 2118 u_int32_t tag, index; 2119 2120 debug_called(3); 2121 2122 /* 2123 * Loop quickly taking requests from the adapter and moving them 2124 * to the completed queue. 2125 */ 2126 for (;;) { 2127 tag = CISS_TL_SIMPLE_FETCH_CMD(sc); 2128 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY) 2129 break; 2130 index = tag >> 2; 2131 debug(2, "completed command %d%s", index, 2132 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2133 if (index >= sc->ciss_max_requests) { 2134 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2135 continue; 2136 } 2137 cr = &(sc->ciss_request[index]); 2138 cc = cr->cr_cc; 2139 cc->header.host_tag = tag; /* not updated by adapter */ 2140 ciss_enqueue_complete(cr, qh); 2141 } 2142 2143 } 2144 2145 static void 2146 ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh) 2147 { 2148 struct ciss_request *cr; 2149 struct ciss_command *cc; 2150 u_int32_t tag, index; 2151 2152 debug_called(3); 2153 2154 /* 2155 * Loop quickly taking requests from the adapter and moving them 2156 * to the completed queue. 2157 */ 2158 for (;;) { 2159 tag = sc->ciss_reply[sc->ciss_rqidx]; 2160 if ((tag & CISS_CYCLE_MASK) != sc->ciss_cycle) 2161 break; 2162 index = tag >> 2; 2163 debug(2, "completed command %d%s\n", index, 2164 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2165 if (index < sc->ciss_max_requests) { 2166 cr = &(sc->ciss_request[index]); 2167 cc = cr->cr_cc; 2168 cc->header.host_tag = tag; /* not updated by adapter */ 2169 ciss_enqueue_complete(cr, qh); 2170 } else { 2171 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2172 } 2173 if (++sc->ciss_rqidx == sc->ciss_max_requests) { 2174 sc->ciss_rqidx = 0; 2175 sc->ciss_cycle ^= 1; 2176 } 2177 } 2178 2179 } 2180 2181 /************************************************************************ 2182 * Take an interrupt from the adapter. 2183 */ 2184 static void 2185 ciss_intr(void *arg) 2186 { 2187 cr_qhead_t qh; 2188 struct ciss_softc *sc = (struct ciss_softc *)arg; 2189 2190 /* 2191 * The only interrupt we recognise indicates that there are 2192 * entries in the outbound post queue. 2193 */ 2194 STAILQ_INIT(&qh); 2195 ciss_done(sc, &qh); 2196 mtx_lock(&sc->ciss_mtx); 2197 ciss_complete(sc, &qh); 2198 mtx_unlock(&sc->ciss_mtx); 2199 } 2200 2201 static void 2202 ciss_perf_intr(void *arg) 2203 { 2204 struct ciss_softc *sc = (struct ciss_softc *)arg; 2205 2206 /* Clear the interrupt and flush the bridges. Docs say that the flush 2207 * needs to be done twice, which doesn't seem right. 2208 */ 2209 CISS_TL_PERF_CLEAR_INT(sc); 2210 CISS_TL_PERF_FLUSH_INT(sc); 2211 2212 ciss_perf_msi_intr(sc); 2213 } 2214 2215 static void 2216 ciss_perf_msi_intr(void *arg) 2217 { 2218 cr_qhead_t qh; 2219 struct ciss_softc *sc = (struct ciss_softc *)arg; 2220 2221 STAILQ_INIT(&qh); 2222 ciss_perf_done(sc, &qh); 2223 mtx_lock(&sc->ciss_mtx); 2224 ciss_complete(sc, &qh); 2225 mtx_unlock(&sc->ciss_mtx); 2226 } 2227 2228 /************************************************************************ 2229 * Process completed requests. 2230 * 2231 * Requests can be completed in three fashions: 2232 * 2233 * - by invoking a callback function (cr_complete is non-null) 2234 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set) 2235 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context 2236 */ 2237 static void 2238 ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh) 2239 { 2240 struct ciss_request *cr; 2241 2242 debug_called(2); 2243 2244 /* 2245 * Loop taking requests off the completed queue and performing 2246 * completion processing on them. 2247 */ 2248 for (;;) { 2249 if ((cr = ciss_dequeue_complete(sc, qh)) == NULL) 2250 break; 2251 ciss_unmap_request(cr); 2252 2253 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 2254 ciss_printf(sc, "WARNING: completing non-busy request\n"); 2255 cr->cr_flags &= ~CISS_REQ_BUSY; 2256 2257 /* 2258 * If the request has a callback, invoke it. 2259 */ 2260 if (cr->cr_complete != NULL) { 2261 cr->cr_complete(cr); 2262 continue; 2263 } 2264 2265 /* 2266 * If someone is sleeping on this request, wake them up. 2267 */ 2268 if (cr->cr_flags & CISS_REQ_SLEEP) { 2269 cr->cr_flags &= ~CISS_REQ_SLEEP; 2270 wakeup(cr); 2271 continue; 2272 } 2273 2274 /* 2275 * If someone is polling this request for completion, signal. 2276 */ 2277 if (cr->cr_flags & CISS_REQ_POLL) { 2278 cr->cr_flags &= ~CISS_REQ_POLL; 2279 continue; 2280 } 2281 2282 /* 2283 * Give up and throw the request back on the free queue. This 2284 * should never happen; resources will probably be lost. 2285 */ 2286 ciss_printf(sc, "WARNING: completed command with no submitter\n"); 2287 ciss_enqueue_free(cr); 2288 } 2289 } 2290 2291 /************************************************************************ 2292 * Report on the completion status of a request, and pass back SCSI 2293 * and command status values. 2294 */ 2295 static int 2296 _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func) 2297 { 2298 struct ciss_command *cc; 2299 struct ciss_error_info *ce; 2300 2301 debug_called(2); 2302 2303 cc = cr->cr_cc; 2304 ce = (struct ciss_error_info *)&(cc->sg[0]); 2305 2306 /* 2307 * We don't consider data under/overrun an error for the Report 2308 * Logical/Physical LUNs commands. 2309 */ 2310 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) && 2311 ((ce->command_status == CISS_CMD_STATUS_DATA_OVERRUN) || 2312 (ce->command_status == CISS_CMD_STATUS_DATA_UNDERRUN)) && 2313 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) || 2314 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS) || 2315 (cc->cdb.cdb[0] == INQUIRY))) { 2316 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR; 2317 debug(2, "ignoring irrelevant under/overrun error"); 2318 } 2319 2320 /* 2321 * Check the command's error bit, if clear, there's no status and 2322 * everything is OK. 2323 */ 2324 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) { 2325 if (scsi_status != NULL) 2326 *scsi_status = SCSI_STATUS_OK; 2327 if (command_status != NULL) 2328 *command_status = CISS_CMD_STATUS_SUCCESS; 2329 return(0); 2330 } else { 2331 if (command_status != NULL) 2332 *command_status = ce->command_status; 2333 if (scsi_status != NULL) { 2334 if (ce->command_status == CISS_CMD_STATUS_DATA_UNDERRUN) { 2335 *scsi_status = SCSI_STATUS_OK; 2336 } else if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) { 2337 *scsi_status = ce->scsi_status; 2338 } else { 2339 *scsi_status = -1; 2340 } 2341 } 2342 if (bootverbose && ce->command_status != CISS_CMD_STATUS_DATA_UNDERRUN) 2343 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n", 2344 ce->command_status, ciss_name_command_status(ce->command_status), 2345 ce->scsi_status); 2346 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) { 2347 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x, function %s\n", 2348 ce->additional_error_info.invalid_command.offense_size, 2349 ce->additional_error_info.invalid_command.offense_offset, 2350 ce->additional_error_info.invalid_command.offense_value, 2351 func); 2352 } 2353 } 2354 #if 0 2355 ciss_print_request(cr); 2356 #endif 2357 return(1); 2358 } 2359 2360 /************************************************************************ 2361 * Issue a request and don't return until it's completed. 2362 * 2363 * Depending on adapter status, we may poll or sleep waiting for 2364 * completion. 2365 */ 2366 static int 2367 ciss_synch_request(struct ciss_request *cr, int timeout) 2368 { 2369 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) { 2370 return(ciss_wait_request(cr, timeout)); 2371 } else { 2372 return(ciss_poll_request(cr, timeout)); 2373 } 2374 } 2375 2376 /************************************************************************ 2377 * Issue a request and poll for completion. 2378 * 2379 * Timeout in milliseconds. 2380 */ 2381 static int 2382 ciss_poll_request(struct ciss_request *cr, int timeout) 2383 { 2384 cr_qhead_t qh; 2385 struct ciss_softc *sc; 2386 int error; 2387 2388 debug_called(2); 2389 2390 STAILQ_INIT(&qh); 2391 sc = cr->cr_sc; 2392 cr->cr_flags |= CISS_REQ_POLL; 2393 if ((error = ciss_start(cr)) != 0) 2394 return(error); 2395 2396 do { 2397 if (sc->ciss_perf) 2398 ciss_perf_done(sc, &qh); 2399 else 2400 ciss_done(sc, &qh); 2401 ciss_complete(sc, &qh); 2402 if (!(cr->cr_flags & CISS_REQ_POLL)) 2403 return(0); 2404 DELAY(1000); 2405 } while (timeout-- >= 0); 2406 return(EWOULDBLOCK); 2407 } 2408 2409 /************************************************************************ 2410 * Issue a request and sleep waiting for completion. 2411 * 2412 * Timeout in milliseconds. Note that a spurious wakeup will reset 2413 * the timeout. 2414 */ 2415 static int 2416 ciss_wait_request(struct ciss_request *cr, int timeout) 2417 { 2418 int error; 2419 2420 debug_called(2); 2421 2422 cr->cr_flags |= CISS_REQ_SLEEP; 2423 if ((error = ciss_start(cr)) != 0) 2424 return(error); 2425 2426 while ((cr->cr_flags & CISS_REQ_SLEEP) && (error != EWOULDBLOCK)) { 2427 error = msleep_sbt(cr, &cr->cr_sc->ciss_mtx, PRIBIO, "cissREQ", 2428 SBT_1MS * timeout, 0, 0); 2429 } 2430 return(error); 2431 } 2432 2433 #if 0 2434 /************************************************************************ 2435 * Abort a request. Note that a potential exists here to race the 2436 * request being completed; the caller must deal with this. 2437 */ 2438 static int 2439 ciss_abort_request(struct ciss_request *ar) 2440 { 2441 struct ciss_request *cr; 2442 struct ciss_command *cc; 2443 struct ciss_message_cdb *cmc; 2444 int error; 2445 2446 debug_called(1); 2447 2448 /* get a request */ 2449 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0) 2450 return(error); 2451 2452 /* build the abort command */ 2453 cc = cr->cr_cc; 2454 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */ 2455 cc->header.address.physical.target = 0; 2456 cc->header.address.physical.bus = 0; 2457 cc->cdb.cdb_length = sizeof(*cmc); 2458 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 2459 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2460 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2461 cc->cdb.timeout = 30; 2462 2463 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]); 2464 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT; 2465 cmc->type = CISS_MESSAGE_ABORT_TASK; 2466 cmc->abort_tag = ar->cr_tag; /* endianness?? */ 2467 2468 /* 2469 * Send the request and wait for a response. If we believe we 2470 * aborted the request OK, clear the flag that indicates it's 2471 * running. 2472 */ 2473 error = ciss_synch_request(cr, 35 * 1000); 2474 if (!error) 2475 error = ciss_report_request(cr, NULL, NULL); 2476 ciss_release_request(cr); 2477 2478 return(error); 2479 } 2480 #endif 2481 2482 /************************************************************************ 2483 * Fetch and initialise a request 2484 */ 2485 static int 2486 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp) 2487 { 2488 struct ciss_request *cr; 2489 2490 debug_called(2); 2491 2492 /* 2493 * Get a request and clean it up. 2494 */ 2495 if ((cr = ciss_dequeue_free(sc)) == NULL) 2496 return(ENOMEM); 2497 2498 cr->cr_data = NULL; 2499 cr->cr_flags = 0; 2500 cr->cr_complete = NULL; 2501 cr->cr_private = NULL; 2502 cr->cr_sg_tag = CISS_SG_MAX; /* Backstop to prevent accidents */ 2503 2504 ciss_preen_command(cr); 2505 *crp = cr; 2506 return(0); 2507 } 2508 2509 static void 2510 ciss_preen_command(struct ciss_request *cr) 2511 { 2512 struct ciss_command *cc; 2513 u_int32_t cmdphys; 2514 2515 /* 2516 * Clean up the command structure. 2517 * 2518 * Note that we set up the error_info structure here, since the 2519 * length can be overwritten by any command. 2520 */ 2521 cc = cr->cr_cc; 2522 cc->header.sg_in_list = 0; /* kinda inefficient this way */ 2523 cc->header.sg_total = 0; 2524 cc->header.host_tag = cr->cr_tag << 2; 2525 cc->header.host_tag_zeroes = 0; 2526 bzero(&(cc->sg[0]), CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command)); 2527 cmdphys = cr->cr_ccphys; 2528 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command); 2529 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command); 2530 } 2531 2532 /************************************************************************ 2533 * Release a request to the free list. 2534 */ 2535 static void 2536 ciss_release_request(struct ciss_request *cr) 2537 { 2538 struct ciss_softc *sc; 2539 2540 debug_called(2); 2541 2542 sc = cr->cr_sc; 2543 2544 /* release the request to the free queue */ 2545 ciss_requeue_free(cr); 2546 } 2547 2548 /************************************************************************ 2549 * Allocate a request that will be used to send a BMIC command. Do some 2550 * of the common setup here to avoid duplicating it everywhere else. 2551 */ 2552 static int 2553 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 2554 int opcode, void **bufp, size_t bufsize) 2555 { 2556 struct ciss_request *cr; 2557 struct ciss_command *cc; 2558 struct ciss_bmic_cdb *cbc; 2559 void *buf; 2560 int error; 2561 int dataout; 2562 2563 debug_called(2); 2564 2565 cr = NULL; 2566 buf = NULL; 2567 2568 /* 2569 * Get a request. 2570 */ 2571 if ((error = ciss_get_request(sc, &cr)) != 0) 2572 goto out; 2573 2574 /* 2575 * Allocate data storage if requested, determine the data direction. 2576 */ 2577 dataout = 0; 2578 if ((bufsize > 0) && (bufp != NULL)) { 2579 if (*bufp == NULL) { 2580 if ((buf = malloc(bufsize, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 2581 error = ENOMEM; 2582 goto out; 2583 } 2584 } else { 2585 buf = *bufp; 2586 dataout = 1; /* we are given a buffer, so we are writing */ 2587 } 2588 } 2589 2590 /* 2591 * Build a CISS BMIC command to get the logical drive ID. 2592 */ 2593 cr->cr_data = buf; 2594 cr->cr_length = bufsize; 2595 if (!dataout) 2596 cr->cr_flags = CISS_REQ_DATAIN; 2597 2598 cc = cr->cr_cc; 2599 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2600 cc->header.address.physical.bus = 0; 2601 cc->header.address.physical.target = 0; 2602 cc->cdb.cdb_length = sizeof(*cbc); 2603 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2604 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2605 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ; 2606 cc->cdb.timeout = 0; 2607 2608 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 2609 bzero(cbc, sizeof(*cbc)); 2610 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ; 2611 cbc->bmic_opcode = opcode; 2612 cbc->size = htons((u_int16_t)bufsize); 2613 2614 out: 2615 if (error) { 2616 if (cr != NULL) 2617 ciss_release_request(cr); 2618 } else { 2619 *crp = cr; 2620 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 2621 *bufp = buf; 2622 } 2623 return(error); 2624 } 2625 2626 /************************************************************************ 2627 * Handle a command passed in from userspace. 2628 */ 2629 static int 2630 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc) 2631 { 2632 struct ciss_request *cr; 2633 struct ciss_command *cc; 2634 struct ciss_error_info *ce; 2635 int error = 0; 2636 2637 debug_called(1); 2638 2639 cr = NULL; 2640 2641 /* 2642 * Get a request. 2643 */ 2644 while (ciss_get_request(sc, &cr) != 0) 2645 msleep(sc, &sc->ciss_mtx, PPAUSE, "cissREQ", hz); 2646 cc = cr->cr_cc; 2647 2648 /* 2649 * Allocate an in-kernel databuffer if required, copy in user data. 2650 */ 2651 mtx_unlock(&sc->ciss_mtx); 2652 cr->cr_length = ioc->buf_size; 2653 if (ioc->buf_size > 0) { 2654 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 2655 error = ENOMEM; 2656 goto out_unlocked; 2657 } 2658 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) { 2659 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2660 goto out_unlocked; 2661 } 2662 } 2663 2664 /* 2665 * Build the request based on the user command. 2666 */ 2667 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address)); 2668 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb)); 2669 2670 /* XXX anything else to populate here? */ 2671 mtx_lock(&sc->ciss_mtx); 2672 2673 /* 2674 * Run the command. 2675 */ 2676 if ((error = ciss_synch_request(cr, 60 * 1000))) { 2677 debug(0, "request failed - %d", error); 2678 goto out; 2679 } 2680 2681 /* 2682 * Check to see if the command succeeded. 2683 */ 2684 ce = (struct ciss_error_info *)&(cc->sg[0]); 2685 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) == 0) 2686 bzero(ce, sizeof(*ce)); 2687 2688 /* 2689 * Copy the results back to the user. 2690 */ 2691 bcopy(ce, &ioc->error_info, sizeof(*ce)); 2692 mtx_unlock(&sc->ciss_mtx); 2693 if ((ioc->buf_size > 0) && 2694 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) { 2695 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2696 goto out_unlocked; 2697 } 2698 2699 /* done OK */ 2700 error = 0; 2701 2702 out_unlocked: 2703 mtx_lock(&sc->ciss_mtx); 2704 2705 out: 2706 if ((cr != NULL) && (cr->cr_data != NULL)) 2707 free(cr->cr_data, CISS_MALLOC_CLASS); 2708 if (cr != NULL) 2709 ciss_release_request(cr); 2710 return(error); 2711 } 2712 2713 /************************************************************************ 2714 * Map a request into bus-visible space, initialise the scatter/gather 2715 * list. 2716 */ 2717 static int 2718 ciss_map_request(struct ciss_request *cr) 2719 { 2720 struct ciss_softc *sc; 2721 int error = 0; 2722 2723 debug_called(2); 2724 2725 sc = cr->cr_sc; 2726 2727 /* check that mapping is necessary */ 2728 if (cr->cr_flags & CISS_REQ_MAPPED) 2729 return(0); 2730 2731 cr->cr_flags |= CISS_REQ_MAPPED; 2732 2733 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2734 BUS_DMASYNC_PREWRITE); 2735 2736 if (cr->cr_data != NULL) { 2737 if (cr->cr_flags & CISS_REQ_CCB) 2738 error = bus_dmamap_load_ccb(sc->ciss_buffer_dmat, 2739 cr->cr_datamap, cr->cr_data, 2740 ciss_request_map_helper, cr, 0); 2741 else 2742 error = bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, 2743 cr->cr_data, cr->cr_length, 2744 ciss_request_map_helper, cr, 0); 2745 if (error != 0) 2746 return (error); 2747 } else { 2748 /* 2749 * Post the command to the adapter. 2750 */ 2751 cr->cr_sg_tag = CISS_SG_NONE; 2752 cr->cr_flags |= CISS_REQ_BUSY; 2753 if (sc->ciss_perf) 2754 CISS_TL_PERF_POST_CMD(sc, cr); 2755 else 2756 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys); 2757 } 2758 2759 return(0); 2760 } 2761 2762 static void 2763 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2764 { 2765 struct ciss_command *cc; 2766 struct ciss_request *cr; 2767 struct ciss_softc *sc; 2768 int i; 2769 2770 debug_called(2); 2771 2772 cr = (struct ciss_request *)arg; 2773 sc = cr->cr_sc; 2774 cc = cr->cr_cc; 2775 2776 for (i = 0; i < nseg; i++) { 2777 cc->sg[i].address = segs[i].ds_addr; 2778 cc->sg[i].length = segs[i].ds_len; 2779 cc->sg[i].extension = 0; 2780 } 2781 /* we leave the s/g table entirely within the command */ 2782 cc->header.sg_in_list = nseg; 2783 cc->header.sg_total = nseg; 2784 2785 if (cr->cr_flags & CISS_REQ_DATAIN) 2786 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD); 2787 if (cr->cr_flags & CISS_REQ_DATAOUT) 2788 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE); 2789 2790 if (nseg == 0) 2791 cr->cr_sg_tag = CISS_SG_NONE; 2792 else if (nseg == 1) 2793 cr->cr_sg_tag = CISS_SG_1; 2794 else if (nseg == 2) 2795 cr->cr_sg_tag = CISS_SG_2; 2796 else if (nseg <= 4) 2797 cr->cr_sg_tag = CISS_SG_4; 2798 else if (nseg <= 8) 2799 cr->cr_sg_tag = CISS_SG_8; 2800 else if (nseg <= 16) 2801 cr->cr_sg_tag = CISS_SG_16; 2802 else if (nseg <= 32) 2803 cr->cr_sg_tag = CISS_SG_32; 2804 else 2805 cr->cr_sg_tag = CISS_SG_MAX; 2806 2807 /* 2808 * Post the command to the adapter. 2809 */ 2810 cr->cr_flags |= CISS_REQ_BUSY; 2811 if (sc->ciss_perf) 2812 CISS_TL_PERF_POST_CMD(sc, cr); 2813 else 2814 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys); 2815 } 2816 2817 /************************************************************************ 2818 * Unmap a request from bus-visible space. 2819 */ 2820 static void 2821 ciss_unmap_request(struct ciss_request *cr) 2822 { 2823 struct ciss_softc *sc; 2824 2825 debug_called(2); 2826 2827 sc = cr->cr_sc; 2828 2829 /* check that unmapping is necessary */ 2830 if ((cr->cr_flags & CISS_REQ_MAPPED) == 0) 2831 return; 2832 2833 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2834 BUS_DMASYNC_POSTWRITE); 2835 2836 if (cr->cr_data == NULL) 2837 goto out; 2838 2839 if (cr->cr_flags & CISS_REQ_DATAIN) 2840 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD); 2841 if (cr->cr_flags & CISS_REQ_DATAOUT) 2842 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE); 2843 2844 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap); 2845 out: 2846 cr->cr_flags &= ~CISS_REQ_MAPPED; 2847 } 2848 2849 /************************************************************************ 2850 * Attach the driver to CAM. 2851 * 2852 * We put all the logical drives on a single SCSI bus. 2853 */ 2854 static int 2855 ciss_cam_init(struct ciss_softc *sc) 2856 { 2857 int i, maxbus; 2858 2859 debug_called(1); 2860 2861 /* 2862 * Allocate a devq. We can reuse this for the masked physical 2863 * devices if we decide to export these as well. 2864 */ 2865 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests - 2)) == NULL) { 2866 ciss_printf(sc, "can't allocate CAM SIM queue\n"); 2867 return(ENOMEM); 2868 } 2869 2870 /* 2871 * Create a SIM. 2872 * 2873 * This naturally wastes a bit of memory. The alternative is to allocate 2874 * and register each bus as it is found, and then track them on a linked 2875 * list. Unfortunately, the driver has a few places where it needs to 2876 * look up the SIM based solely on bus number, and it's unclear whether 2877 * a list traversal would work for these situations. 2878 */ 2879 maxbus = max(sc->ciss_max_logical_bus, sc->ciss_max_physical_bus + 2880 CISS_PHYSICAL_BASE); 2881 sc->ciss_cam_sim = malloc(maxbus * sizeof(struct cam_sim*), 2882 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 2883 if (sc->ciss_cam_sim == NULL) { 2884 ciss_printf(sc, "can't allocate memory for controller SIM\n"); 2885 return(ENOMEM); 2886 } 2887 2888 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 2889 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2890 "ciss", sc, 2891 device_get_unit(sc->ciss_dev), 2892 &sc->ciss_mtx, 2893 2, 2894 sc->ciss_max_requests - 2, 2895 sc->ciss_cam_devq)) == NULL) { 2896 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2897 return(ENOMEM); 2898 } 2899 2900 /* 2901 * Register bus with this SIM. 2902 */ 2903 mtx_lock(&sc->ciss_mtx); 2904 if (i == 0 || sc->ciss_controllers[i].physical.bus != 0) { 2905 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) { 2906 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2907 mtx_unlock(&sc->ciss_mtx); 2908 return (ENXIO); 2909 } 2910 } 2911 mtx_unlock(&sc->ciss_mtx); 2912 } 2913 2914 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2915 CISS_PHYSICAL_BASE; i++) { 2916 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2917 "ciss", sc, 2918 device_get_unit(sc->ciss_dev), 2919 &sc->ciss_mtx, 1, 2920 sc->ciss_max_requests - 2, 2921 sc->ciss_cam_devq)) == NULL) { 2922 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2923 return (ENOMEM); 2924 } 2925 2926 mtx_lock(&sc->ciss_mtx); 2927 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) { 2928 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2929 mtx_unlock(&sc->ciss_mtx); 2930 return (ENXIO); 2931 } 2932 mtx_unlock(&sc->ciss_mtx); 2933 } 2934 2935 return(0); 2936 } 2937 2938 /************************************************************************ 2939 * Initiate a rescan of the 'logical devices' SIM 2940 */ 2941 static void 2942 ciss_cam_rescan_target(struct ciss_softc *sc, int bus, int target) 2943 { 2944 union ccb *ccb; 2945 2946 debug_called(1); 2947 2948 if ((ccb = xpt_alloc_ccb_nowait()) == NULL) { 2949 ciss_printf(sc, "rescan failed (can't allocate CCB)\n"); 2950 return; 2951 } 2952 2953 if (xpt_create_path(&ccb->ccb_h.path, NULL, 2954 cam_sim_path(sc->ciss_cam_sim[bus]), 2955 target, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 2956 ciss_printf(sc, "rescan failed (can't create path)\n"); 2957 xpt_free_ccb(ccb); 2958 return; 2959 } 2960 xpt_rescan(ccb); 2961 /* scan is now in progress */ 2962 } 2963 2964 /************************************************************************ 2965 * Handle requests coming from CAM 2966 */ 2967 static void 2968 ciss_cam_action(struct cam_sim *sim, union ccb *ccb) 2969 { 2970 struct ciss_softc *sc; 2971 struct ccb_scsiio *csio; 2972 int bus, target; 2973 int physical; 2974 2975 sc = cam_sim_softc(sim); 2976 bus = cam_sim_bus(sim); 2977 csio = (struct ccb_scsiio *)&ccb->csio; 2978 target = csio->ccb_h.target_id; 2979 physical = CISS_IS_PHYSICAL(bus); 2980 2981 switch (ccb->ccb_h.func_code) { 2982 /* perform SCSI I/O */ 2983 case XPT_SCSI_IO: 2984 if (!ciss_cam_action_io(sim, csio)) 2985 return; 2986 break; 2987 2988 /* perform geometry calculations */ 2989 case XPT_CALC_GEOMETRY: 2990 { 2991 struct ccb_calc_geometry *ccg = &ccb->ccg; 2992 struct ciss_ldrive *ld; 2993 2994 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 2995 2996 ld = NULL; 2997 if (!physical) 2998 ld = &sc->ciss_logical[bus][target]; 2999 3000 /* 3001 * Use the cached geometry settings unless the fault tolerance 3002 * is invalid. 3003 */ 3004 if (physical || ld->cl_geometry.fault_tolerance == 0xFF) { 3005 u_int32_t secs_per_cylinder; 3006 3007 ccg->heads = 255; 3008 ccg->secs_per_track = 32; 3009 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 3010 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 3011 } else { 3012 ccg->heads = ld->cl_geometry.heads; 3013 ccg->secs_per_track = ld->cl_geometry.sectors; 3014 ccg->cylinders = ntohs(ld->cl_geometry.cylinders); 3015 } 3016 ccb->ccb_h.status = CAM_REQ_CMP; 3017 break; 3018 } 3019 3020 /* handle path attribute inquiry */ 3021 case XPT_PATH_INQ: 3022 { 3023 struct ccb_pathinq *cpi = &ccb->cpi; 3024 int sg_length; 3025 3026 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 3027 3028 cpi->version_num = 1; 3029 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */ 3030 cpi->target_sprt = 0; 3031 cpi->hba_misc = 0; 3032 cpi->max_target = sc->ciss_cfg->max_logical_supported; 3033 cpi->max_lun = 0; /* 'logical drive' channel only */ 3034 cpi->initiator_id = sc->ciss_cfg->max_logical_supported; 3035 strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 3036 strlcpy(cpi->hba_vid, "CISS", HBA_IDLEN); 3037 strlcpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 3038 cpi->unit_number = cam_sim_unit(sim); 3039 cpi->bus_id = cam_sim_bus(sim); 3040 cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */ 3041 cpi->transport = XPORT_SPI; 3042 cpi->transport_version = 2; 3043 cpi->protocol = PROTO_SCSI; 3044 cpi->protocol_version = SCSI_REV_2; 3045 if (sc->ciss_cfg->max_sg_length == 0) { 3046 sg_length = 17; 3047 } else { 3048 /* XXX Fix for ZMR cards that advertise max_sg_length == 32 3049 * Confusing bit here. max_sg_length is usually a power of 2. We always 3050 * need to subtract 1 to account for partial pages. Then we need to 3051 * align on a valid PAGE_SIZE so we round down to the nearest power of 2. 3052 * Add 1 so we can then subtract it out in the assignment to maxio. 3053 * The reason for all these shenanigans is to create a maxio value that 3054 * creates IO operations to volumes that yield consistent operations 3055 * with good performance. 3056 */ 3057 sg_length = sc->ciss_cfg->max_sg_length - 1; 3058 sg_length = (1 << (fls(sg_length) - 1)) + 1; 3059 } 3060 cpi->maxio = (min(CISS_MAX_SG_ELEMENTS, sg_length) - 1) * PAGE_SIZE; 3061 ccb->ccb_h.status = CAM_REQ_CMP; 3062 break; 3063 } 3064 3065 case XPT_GET_TRAN_SETTINGS: 3066 { 3067 struct ccb_trans_settings *cts = &ccb->cts; 3068 int bus, target; 3069 struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi; 3070 struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi; 3071 3072 bus = cam_sim_bus(sim); 3073 target = cts->ccb_h.target_id; 3074 3075 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target); 3076 /* disconnect always OK */ 3077 cts->protocol = PROTO_SCSI; 3078 cts->protocol_version = SCSI_REV_2; 3079 cts->transport = XPORT_SPI; 3080 cts->transport_version = 2; 3081 3082 spi->valid = CTS_SPI_VALID_DISC; 3083 spi->flags = CTS_SPI_FLAGS_DISC_ENB; 3084 3085 scsi->valid = CTS_SCSI_VALID_TQ; 3086 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB; 3087 3088 cts->ccb_h.status = CAM_REQ_CMP; 3089 break; 3090 } 3091 3092 default: /* we can't do this */ 3093 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code); 3094 ccb->ccb_h.status = CAM_REQ_INVALID; 3095 break; 3096 } 3097 3098 xpt_done(ccb); 3099 } 3100 3101 /************************************************************************ 3102 * Handle a CAM SCSI I/O request. 3103 */ 3104 static int 3105 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio) 3106 { 3107 struct ciss_softc *sc; 3108 int bus, target; 3109 struct ciss_request *cr; 3110 struct ciss_command *cc; 3111 int error; 3112 3113 sc = cam_sim_softc(sim); 3114 bus = cam_sim_bus(sim); 3115 target = csio->ccb_h.target_id; 3116 3117 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun); 3118 3119 /* check that the CDB pointer is not to a physical address */ 3120 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) { 3121 debug(3, " CDB pointer is to physical address"); 3122 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3123 } 3124 3125 /* abandon aborted ccbs or those that have failed validation */ 3126 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 3127 debug(3, "abandoning CCB due to abort/validation failure"); 3128 return(EINVAL); 3129 } 3130 3131 /* handle emulation of some SCSI commands ourself */ 3132 if (ciss_cam_emulate(sc, csio)) 3133 return(0); 3134 3135 /* 3136 * Get a request to manage this command. If we can't, return the 3137 * ccb, freeze the queue and flag so that we unfreeze it when a 3138 * request completes. 3139 */ 3140 if ((error = ciss_get_request(sc, &cr)) != 0) { 3141 xpt_freeze_simq(sim, 1); 3142 sc->ciss_flags |= CISS_FLAG_BUSY; 3143 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3144 return(error); 3145 } 3146 3147 /* 3148 * Build the command. 3149 */ 3150 cc = cr->cr_cc; 3151 cr->cr_data = csio; 3152 cr->cr_length = csio->dxfer_len; 3153 cr->cr_complete = ciss_cam_complete; 3154 cr->cr_private = csio; 3155 3156 /* 3157 * Target the right logical volume. 3158 */ 3159 if (CISS_IS_PHYSICAL(bus)) 3160 cc->header.address = 3161 sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_address; 3162 else 3163 cc->header.address = 3164 sc->ciss_logical[bus][target].cl_address; 3165 cc->cdb.cdb_length = csio->cdb_len; 3166 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3167 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */ 3168 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 3169 cr->cr_flags = CISS_REQ_DATAOUT | CISS_REQ_CCB; 3170 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3171 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 3172 cr->cr_flags = CISS_REQ_DATAIN | CISS_REQ_CCB; 3173 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3174 } else { 3175 cr->cr_data = NULL; 3176 cr->cr_flags = 0; 3177 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 3178 } 3179 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1; 3180 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 3181 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len); 3182 } else { 3183 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len); 3184 } 3185 3186 /* 3187 * Submit the request to the adapter. 3188 * 3189 * Note that this may fail if we're unable to map the request (and 3190 * if we ever learn a transport layer other than simple, may fail 3191 * if the adapter rejects the command). 3192 */ 3193 if ((error = ciss_start(cr)) != 0) { 3194 xpt_freeze_simq(sim, 1); 3195 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3196 if (error == EINPROGRESS) { 3197 error = 0; 3198 } else { 3199 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3200 ciss_release_request(cr); 3201 } 3202 return(error); 3203 } 3204 3205 return(0); 3206 } 3207 3208 /************************************************************************ 3209 * Emulate SCSI commands the adapter doesn't handle as we might like. 3210 */ 3211 static int 3212 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio) 3213 { 3214 int bus, target; 3215 u_int8_t opcode; 3216 3217 target = csio->ccb_h.target_id; 3218 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3219 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 3220 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]; 3221 3222 if (CISS_IS_PHYSICAL(bus)) { 3223 if (sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_online != 1) { 3224 csio->ccb_h.status |= CAM_SEL_TIMEOUT; 3225 xpt_done((union ccb *)csio); 3226 return(1); 3227 } else 3228 return(0); 3229 } 3230 3231 /* 3232 * Handle requests for volumes that don't exist or are not online. 3233 * A selection timeout is slightly better than an illegal request. 3234 * Other errors might be better. 3235 */ 3236 if (sc->ciss_logical[bus][target].cl_status != CISS_LD_ONLINE) { 3237 csio->ccb_h.status |= CAM_SEL_TIMEOUT; 3238 xpt_done((union ccb *)csio); 3239 return(1); 3240 } 3241 3242 /* if we have to fake Synchronise Cache */ 3243 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) { 3244 /* 3245 * If this is a Synchronise Cache command, typically issued when 3246 * a device is closed, flush the adapter and complete now. 3247 */ 3248 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 3249 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) { 3250 ciss_flush_adapter(sc); 3251 csio->ccb_h.status |= CAM_REQ_CMP; 3252 xpt_done((union ccb *)csio); 3253 return(1); 3254 } 3255 } 3256 3257 /* 3258 * A CISS target can only ever have one lun per target. REPORT_LUNS requires 3259 * at least one LUN field to be pre created for us, so snag it and fill in 3260 * the least significant byte indicating 1 LUN here. Emulate the command 3261 * return to shut up warning on console of a CDB error. swb 3262 */ 3263 if (opcode == REPORT_LUNS && csio->dxfer_len > 0) { 3264 csio->data_ptr[3] = 8; 3265 csio->ccb_h.status |= CAM_REQ_CMP; 3266 xpt_done((union ccb *)csio); 3267 return(1); 3268 } 3269 3270 return(0); 3271 } 3272 3273 /************************************************************************ 3274 * Check for possibly-completed commands. 3275 */ 3276 static void 3277 ciss_cam_poll(struct cam_sim *sim) 3278 { 3279 cr_qhead_t qh; 3280 struct ciss_softc *sc = cam_sim_softc(sim); 3281 3282 debug_called(2); 3283 3284 STAILQ_INIT(&qh); 3285 if (sc->ciss_perf) 3286 ciss_perf_done(sc, &qh); 3287 else 3288 ciss_done(sc, &qh); 3289 ciss_complete(sc, &qh); 3290 } 3291 3292 /************************************************************************ 3293 * Handle completion of a command - pass results back through the CCB 3294 */ 3295 static void 3296 ciss_cam_complete(struct ciss_request *cr) 3297 { 3298 struct ciss_softc *sc; 3299 struct ciss_command *cc; 3300 struct ciss_error_info *ce; 3301 struct ccb_scsiio *csio; 3302 int scsi_status; 3303 int command_status; 3304 3305 debug_called(2); 3306 3307 sc = cr->cr_sc; 3308 cc = cr->cr_cc; 3309 ce = (struct ciss_error_info *)&(cc->sg[0]); 3310 csio = (struct ccb_scsiio *)cr->cr_private; 3311 3312 /* 3313 * Extract status values from request. 3314 */ 3315 ciss_report_request(cr, &command_status, &scsi_status); 3316 switch(command_status) { 3317 case CISS_CMD_STATUS_DATA_UNDERRUN: 3318 csio->resid = ce->residual_count; 3319 /* FALLTHROUGH */ 3320 case CISS_CMD_STATUS_SUCCESS: 3321 csio->scsi_status = scsi_status; 3322 debug(2, "SCSI_STATUS_OK"); 3323 csio->ccb_h.status |= CAM_REQ_CMP; 3324 break; 3325 case CISS_CMD_STATUS_TARGET_STATUS: 3326 csio->scsi_status = scsi_status; 3327 bzero(&csio->sense_data, SSD_FULL_SIZE); 3328 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length); 3329 if (csio->sense_len > ce->sense_length) 3330 csio->sense_resid = csio->sense_len - ce->sense_length; 3331 else 3332 csio->sense_resid = 0; 3333 csio->resid = ce->residual_count; 3334 csio->ccb_h.status |= CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 3335 break; 3336 case CISS_CMD_STATUS_DATA_OVERRUN: 3337 csio->ccb_h.status |= CAM_DATA_RUN_ERR; 3338 break; 3339 default: 3340 csio->ccb_h.status |= CAM_REQ_CMP_ERR; 3341 break; 3342 } 3343 3344 /* handle post-command fixup */ 3345 ciss_cam_complete_fixup(sc, csio); 3346 3347 ciss_release_request(cr); 3348 if (sc->ciss_flags & CISS_FLAG_BUSY) { 3349 sc->ciss_flags &= ~CISS_FLAG_BUSY; 3350 if (csio->ccb_h.status & CAM_RELEASE_SIMQ) 3351 xpt_release_simq(xpt_path_sim(csio->ccb_h.path), 0); 3352 else 3353 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3354 } 3355 xpt_done((union ccb *)csio); 3356 } 3357 3358 /******************************************************************************** 3359 * Fix up the result of some commands here. 3360 */ 3361 static void 3362 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio) 3363 { 3364 struct scsi_inquiry_data *inq; 3365 struct ciss_ldrive *cl; 3366 uint8_t *cdb; 3367 int bus, target; 3368 3369 cdb = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 3370 (uint8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes; 3371 if (cdb[0] == INQUIRY && 3372 (cdb[1] & SI_EVPD) == 0 && 3373 (csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN && 3374 csio->dxfer_len >= SHORT_INQUIRY_LENGTH) { 3375 inq = (struct scsi_inquiry_data *)csio->data_ptr; 3376 target = csio->ccb_h.target_id; 3377 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3378 3379 /* 3380 * If the controller is in JBOD mode, there are no logical volumes. 3381 * Let the disks be probed and dealt with via CAM. Else, mask off 3382 * the physical disks and setup the parts of the inq structure for 3383 * the logical volume. swb 3384 */ 3385 if( !(sc->ciss_id->PowerUPNvramFlags & PWR_UP_FLAG_JBOD_ENABLED)){ 3386 if (CISS_IS_PHYSICAL(bus)) { 3387 if (SID_TYPE(inq) == T_DIRECT) 3388 inq->device = (inq->device & 0xe0) | T_NODEVICE; 3389 return; 3390 } 3391 cl = &sc->ciss_logical[bus][target]; 3392 3393 padstr(inq->vendor, "HP", 3394 SID_VENDOR_SIZE); 3395 padstr(inq->product, 3396 ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 3397 SID_PRODUCT_SIZE); 3398 padstr(inq->revision, 3399 ciss_name_ldrive_status(cl->cl_lstatus->status), 3400 SID_REVISION_SIZE); 3401 } 3402 } 3403 } 3404 3405 /******************************************************************************** 3406 * Name the device at (target) 3407 * 3408 * XXX is this strictly correct? 3409 */ 3410 static int 3411 ciss_name_device(struct ciss_softc *sc, int bus, int target) 3412 { 3413 struct cam_periph *periph; 3414 struct cam_path *path; 3415 int status; 3416 3417 if (CISS_IS_PHYSICAL(bus)) 3418 return (0); 3419 3420 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim[bus]), 3421 target, 0); 3422 3423 if (status == CAM_REQ_CMP) { 3424 xpt_path_lock(path); 3425 periph = cam_periph_find(path, NULL); 3426 xpt_path_unlock(path); 3427 xpt_free_path(path); 3428 if (periph != NULL) { 3429 sprintf(sc->ciss_logical[bus][target].cl_name, "%s%d", 3430 periph->periph_name, periph->unit_number); 3431 return(0); 3432 } 3433 } 3434 sc->ciss_logical[bus][target].cl_name[0] = 0; 3435 return(ENOENT); 3436 } 3437 3438 /************************************************************************ 3439 * Periodic status monitoring. 3440 */ 3441 static void 3442 ciss_periodic(void *arg) 3443 { 3444 struct ciss_softc *sc; 3445 struct ciss_request *cr = NULL; 3446 struct ciss_command *cc = NULL; 3447 int error = 0; 3448 3449 debug_called(1); 3450 3451 sc = (struct ciss_softc *)arg; 3452 3453 /* 3454 * Check the adapter heartbeat. 3455 */ 3456 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) { 3457 sc->ciss_heart_attack++; 3458 debug(0, "adapter heart attack in progress 0x%x/%d", 3459 sc->ciss_heartbeat, sc->ciss_heart_attack); 3460 if (sc->ciss_heart_attack == 3) { 3461 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n"); 3462 ciss_disable_adapter(sc); 3463 return; 3464 } 3465 } else { 3466 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat; 3467 sc->ciss_heart_attack = 0; 3468 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat); 3469 } 3470 3471 /* 3472 * Send the NOP message and wait for a response. 3473 */ 3474 if (ciss_nop_message_heartbeat != 0 && (error = ciss_get_request(sc, &cr)) == 0) { 3475 cc = cr->cr_cc; 3476 cr->cr_complete = ciss_nop_complete; 3477 cc->cdb.cdb_length = 1; 3478 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 3479 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3480 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3481 cc->cdb.timeout = 0; 3482 cc->cdb.cdb[0] = CISS_OPCODE_MESSAGE_NOP; 3483 3484 if ((error = ciss_start(cr)) != 0) { 3485 ciss_printf(sc, "SENDING NOP MESSAGE FAILED\n"); 3486 } 3487 } 3488 3489 /* 3490 * If the notify event request has died for some reason, or has 3491 * not started yet, restart it. 3492 */ 3493 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) { 3494 debug(0, "(re)starting Event Notify chain"); 3495 ciss_notify_event(sc); 3496 } 3497 3498 /* 3499 * Reschedule. 3500 */ 3501 callout_reset(&sc->ciss_periodic, CISS_HEARTBEAT_RATE * hz, ciss_periodic, sc); 3502 } 3503 3504 static void 3505 ciss_nop_complete(struct ciss_request *cr) 3506 { 3507 struct ciss_softc *sc; 3508 static int first_time = 1; 3509 3510 sc = cr->cr_sc; 3511 if (ciss_report_request(cr, NULL, NULL) != 0) { 3512 if (first_time == 1) { 3513 first_time = 0; 3514 ciss_printf(sc, "SENDING NOP MESSAGE FAILED (not logging anymore)\n"); 3515 } 3516 } 3517 3518 ciss_release_request(cr); 3519 } 3520 3521 /************************************************************************ 3522 * Disable the adapter. 3523 * 3524 * The all requests in completed queue is failed with hardware error. 3525 * This will cause failover in a multipath configuration. 3526 */ 3527 static void 3528 ciss_disable_adapter(struct ciss_softc *sc) 3529 { 3530 cr_qhead_t qh; 3531 struct ciss_request *cr; 3532 struct ciss_command *cc; 3533 struct ciss_error_info *ce; 3534 int i; 3535 3536 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 3537 pci_disable_busmaster(sc->ciss_dev); 3538 sc->ciss_flags &= ~CISS_FLAG_RUNNING; 3539 3540 STAILQ_INIT(&qh); 3541 for (i = 1; i < sc->ciss_max_requests; i++) { 3542 cr = &sc->ciss_request[i]; 3543 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 3544 continue; 3545 3546 cc = cr->cr_cc; 3547 ce = (struct ciss_error_info *)&(cc->sg[0]); 3548 ce->command_status = CISS_CMD_STATUS_HARDWARE_ERROR; 3549 ciss_enqueue_complete(cr, &qh); 3550 } 3551 3552 for (;;) { 3553 if ((cr = ciss_dequeue_complete(sc, &qh)) == NULL) 3554 break; 3555 3556 /* 3557 * If the request has a callback, invoke it. 3558 */ 3559 if (cr->cr_complete != NULL) { 3560 cr->cr_complete(cr); 3561 continue; 3562 } 3563 3564 /* 3565 * If someone is sleeping on this request, wake them up. 3566 */ 3567 if (cr->cr_flags & CISS_REQ_SLEEP) { 3568 cr->cr_flags &= ~CISS_REQ_SLEEP; 3569 wakeup(cr); 3570 continue; 3571 } 3572 } 3573 } 3574 3575 /************************************************************************ 3576 * Request a notification response from the adapter. 3577 * 3578 * If (cr) is NULL, this is the first request of the adapter, so 3579 * reset the adapter's message pointer and start with the oldest 3580 * message available. 3581 */ 3582 static void 3583 ciss_notify_event(struct ciss_softc *sc) 3584 { 3585 struct ciss_request *cr; 3586 struct ciss_command *cc; 3587 struct ciss_notify_cdb *cnc; 3588 int error; 3589 3590 debug_called(1); 3591 3592 cr = sc->ciss_periodic_notify; 3593 3594 /* get a request if we don't already have one */ 3595 if (cr == NULL) { 3596 if ((error = ciss_get_request(sc, &cr)) != 0) { 3597 debug(0, "can't get notify event request"); 3598 goto out; 3599 } 3600 sc->ciss_periodic_notify = cr; 3601 cr->cr_complete = ciss_notify_complete; 3602 debug(1, "acquired request %d", cr->cr_tag); 3603 } 3604 3605 /* 3606 * Get a databuffer if we don't already have one, note that the 3607 * adapter command wants a larger buffer than the actual 3608 * structure. 3609 */ 3610 if (cr->cr_data == NULL) { 3611 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3612 debug(0, "can't get notify event request buffer"); 3613 error = ENOMEM; 3614 goto out; 3615 } 3616 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3617 } 3618 3619 /* re-setup the request's command (since we never release it) XXX overkill*/ 3620 ciss_preen_command(cr); 3621 3622 /* (re)build the notify event command */ 3623 cc = cr->cr_cc; 3624 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3625 cc->header.address.physical.bus = 0; 3626 cc->header.address.physical.target = 0; 3627 3628 cc->cdb.cdb_length = sizeof(*cnc); 3629 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3630 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3631 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3632 cc->cdb.timeout = 0; /* no timeout, we hope */ 3633 3634 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3635 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE); 3636 cnc->opcode = CISS_OPCODE_READ; 3637 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT; 3638 cnc->timeout = 0; /* no timeout, we hope */ 3639 cnc->synchronous = 0; 3640 cnc->ordered = 0; 3641 cnc->seek_to_oldest = 0; 3642 if ((sc->ciss_flags & CISS_FLAG_RUNNING) == 0) 3643 cnc->new_only = 1; 3644 else 3645 cnc->new_only = 0; 3646 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3647 3648 /* submit the request */ 3649 error = ciss_start(cr); 3650 3651 out: 3652 if (error) { 3653 if (cr != NULL) { 3654 if (cr->cr_data != NULL) 3655 free(cr->cr_data, CISS_MALLOC_CLASS); 3656 ciss_release_request(cr); 3657 } 3658 sc->ciss_periodic_notify = NULL; 3659 debug(0, "can't submit notify event request"); 3660 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3661 } else { 3662 debug(1, "notify event submitted"); 3663 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK; 3664 } 3665 } 3666 3667 static void 3668 ciss_notify_complete(struct ciss_request *cr) 3669 { 3670 struct ciss_command *cc; 3671 struct ciss_notify *cn; 3672 struct ciss_softc *sc; 3673 int scsi_status; 3674 int command_status; 3675 debug_called(1); 3676 3677 cc = cr->cr_cc; 3678 cn = (struct ciss_notify *)cr->cr_data; 3679 sc = cr->cr_sc; 3680 3681 /* 3682 * Report request results, decode status. 3683 */ 3684 ciss_report_request(cr, &command_status, &scsi_status); 3685 3686 /* 3687 * Abort the chain on a fatal error. 3688 * 3689 * XXX which of these are actually errors? 3690 */ 3691 if ((command_status != CISS_CMD_STATUS_SUCCESS) && 3692 (command_status != CISS_CMD_STATUS_TARGET_STATUS) && 3693 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */ 3694 ciss_printf(sc, "fatal error in Notify Event request (%s)\n", 3695 ciss_name_command_status(command_status)); 3696 ciss_release_request(cr); 3697 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3698 return; 3699 } 3700 3701 /* 3702 * If the adapter gave us a text message, print it. 3703 */ 3704 if (cn->message[0] != 0) 3705 ciss_printf(sc, "*** %.80s\n", cn->message); 3706 3707 debug(0, "notify event class %d subclass %d detail %d", 3708 cn->class, cn->subclass, cn->detail); 3709 3710 /* 3711 * If the response indicates that the notifier has been aborted, 3712 * release the notifier command. 3713 */ 3714 if ((cn->class == CISS_NOTIFY_NOTIFIER) && 3715 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) && 3716 (cn->detail == 1)) { 3717 debug(0, "notifier exiting"); 3718 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3719 ciss_release_request(cr); 3720 sc->ciss_periodic_notify = NULL; 3721 wakeup(&sc->ciss_periodic_notify); 3722 } else { 3723 /* Handle notify events in a kernel thread */ 3724 ciss_enqueue_notify(cr); 3725 sc->ciss_periodic_notify = NULL; 3726 wakeup(&sc->ciss_periodic_notify); 3727 wakeup(&sc->ciss_notify); 3728 } 3729 /* 3730 * Send a new notify event command, if we're not aborting. 3731 */ 3732 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) { 3733 ciss_notify_event(sc); 3734 } 3735 } 3736 3737 /************************************************************************ 3738 * Abort the Notify Event chain. 3739 * 3740 * Note that we can't just abort the command in progress; we have to 3741 * explicitly issue an Abort Notify Event command in order for the 3742 * adapter to clean up correctly. 3743 * 3744 * If we are called with CISS_FLAG_ABORTING set in the adapter softc, 3745 * the chain will not restart itself. 3746 */ 3747 static int 3748 ciss_notify_abort(struct ciss_softc *sc) 3749 { 3750 struct ciss_request *cr; 3751 struct ciss_command *cc; 3752 struct ciss_notify_cdb *cnc; 3753 int error, command_status, scsi_status; 3754 3755 debug_called(1); 3756 3757 cr = NULL; 3758 error = 0; 3759 3760 /* verify that there's an outstanding command */ 3761 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3762 goto out; 3763 3764 /* get a command to issue the abort with */ 3765 if ((error = ciss_get_request(sc, &cr))) 3766 goto out; 3767 3768 /* get a buffer for the result */ 3769 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3770 debug(0, "can't get notify event request buffer"); 3771 error = ENOMEM; 3772 goto out; 3773 } 3774 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3775 3776 /* build the CDB */ 3777 cc = cr->cr_cc; 3778 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3779 cc->header.address.physical.bus = 0; 3780 cc->header.address.physical.target = 0; 3781 cc->cdb.cdb_length = sizeof(*cnc); 3782 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3783 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3784 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3785 cc->cdb.timeout = 0; /* no timeout, we hope */ 3786 3787 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3788 bzero(cnc, sizeof(*cnc)); 3789 cnc->opcode = CISS_OPCODE_WRITE; 3790 cnc->command = CISS_COMMAND_ABORT_NOTIFY; 3791 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3792 #if 0 3793 ciss_print_request(cr); 3794 #endif 3795 3796 /* 3797 * Submit the request and wait for it to complete. 3798 */ 3799 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3800 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error); 3801 goto out; 3802 } 3803 3804 /* 3805 * Check response. 3806 */ 3807 ciss_report_request(cr, &command_status, &scsi_status); 3808 switch(command_status) { 3809 case CISS_CMD_STATUS_SUCCESS: 3810 break; 3811 case CISS_CMD_STATUS_INVALID_COMMAND: 3812 /* 3813 * Some older adapters don't support the CISS version of this 3814 * command. Fall back to using the BMIC version. 3815 */ 3816 error = ciss_notify_abort_bmic(sc); 3817 if (error != 0) 3818 goto out; 3819 break; 3820 3821 case CISS_CMD_STATUS_TARGET_STATUS: 3822 /* 3823 * This can happen if the adapter thinks there wasn't an outstanding 3824 * Notify Event command but we did. We clean up here. 3825 */ 3826 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) { 3827 if (sc->ciss_periodic_notify != NULL) 3828 ciss_release_request(sc->ciss_periodic_notify); 3829 error = 0; 3830 goto out; 3831 } 3832 /* FALLTHROUGH */ 3833 3834 default: 3835 ciss_printf(sc, "Abort Notify Event command failed (%s)\n", 3836 ciss_name_command_status(command_status)); 3837 error = EIO; 3838 goto out; 3839 } 3840 3841 /* 3842 * Sleep waiting for the notifier command to complete. Note 3843 * that if it doesn't, we may end up in a bad situation, since 3844 * the adapter may deliver it later. Also note that the adapter 3845 * requires the Notify Event command to be cancelled in order to 3846 * maintain internal bookkeeping. 3847 */ 3848 while (sc->ciss_periodic_notify != NULL) { 3849 error = msleep(&sc->ciss_periodic_notify, &sc->ciss_mtx, PRIBIO, "cissNEA", hz * 5); 3850 if (error == EWOULDBLOCK) { 3851 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n"); 3852 break; 3853 } 3854 } 3855 3856 out: 3857 /* release the cancel request */ 3858 if (cr != NULL) { 3859 if (cr->cr_data != NULL) 3860 free(cr->cr_data, CISS_MALLOC_CLASS); 3861 ciss_release_request(cr); 3862 } 3863 if (error == 0) 3864 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3865 return(error); 3866 } 3867 3868 /************************************************************************ 3869 * Abort the Notify Event chain using a BMIC command. 3870 */ 3871 static int 3872 ciss_notify_abort_bmic(struct ciss_softc *sc) 3873 { 3874 struct ciss_request *cr; 3875 int error, command_status; 3876 3877 debug_called(1); 3878 3879 cr = NULL; 3880 error = 0; 3881 3882 /* verify that there's an outstanding command */ 3883 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3884 goto out; 3885 3886 /* 3887 * Build a BMIC command to cancel the Notify on Event command. 3888 * 3889 * Note that we are sending a CISS opcode here. Odd. 3890 */ 3891 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY, 3892 NULL, 0)) != 0) 3893 goto out; 3894 3895 /* 3896 * Submit the request and wait for it to complete. 3897 */ 3898 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3899 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error); 3900 goto out; 3901 } 3902 3903 /* 3904 * Check response. 3905 */ 3906 ciss_report_request(cr, &command_status, NULL); 3907 switch(command_status) { 3908 case CISS_CMD_STATUS_SUCCESS: 3909 break; 3910 default: 3911 ciss_printf(sc, "error cancelling Notify on Event (%s)\n", 3912 ciss_name_command_status(command_status)); 3913 error = EIO; 3914 goto out; 3915 } 3916 3917 out: 3918 if (cr != NULL) 3919 ciss_release_request(cr); 3920 return(error); 3921 } 3922 3923 /************************************************************************ 3924 * Handle rescanning all the logical volumes when a notify event 3925 * causes the drives to come online or offline. 3926 */ 3927 static void 3928 ciss_notify_rescan_logical(struct ciss_softc *sc) 3929 { 3930 struct ciss_lun_report *cll; 3931 struct ciss_ldrive *ld; 3932 int i, j, ndrives; 3933 3934 /* 3935 * We must rescan all logical volumes to get the right logical 3936 * drive address. 3937 */ 3938 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 3939 sc->ciss_cfg->max_logical_supported); 3940 if (cll == NULL) 3941 return; 3942 3943 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 3944 3945 /* 3946 * Delete any of the drives which were destroyed by the 3947 * firmware. 3948 */ 3949 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 3950 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) { 3951 ld = &sc->ciss_logical[i][j]; 3952 3953 if (ld->cl_update == 0) 3954 continue; 3955 3956 if (ld->cl_status != CISS_LD_ONLINE) { 3957 ciss_cam_rescan_target(sc, i, j); 3958 ld->cl_update = 0; 3959 if (ld->cl_ldrive) 3960 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 3961 if (ld->cl_lstatus) 3962 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 3963 3964 ld->cl_ldrive = NULL; 3965 ld->cl_lstatus = NULL; 3966 } 3967 } 3968 } 3969 3970 /* 3971 * Scan for new drives. 3972 */ 3973 for (i = 0; i < ndrives; i++) { 3974 int bus, target; 3975 3976 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 3977 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 3978 ld = &sc->ciss_logical[bus][target]; 3979 3980 if (ld->cl_update == 0) 3981 continue; 3982 3983 ld->cl_update = 0; 3984 ld->cl_address = cll->lun[i]; 3985 ld->cl_controller = &sc->ciss_controllers[bus]; 3986 if (ciss_identify_logical(sc, ld) == 0) { 3987 ciss_cam_rescan_target(sc, bus, target); 3988 } 3989 } 3990 free(cll, CISS_MALLOC_CLASS); 3991 } 3992 3993 /************************************************************************ 3994 * Handle a notify event relating to the status of a logical drive. 3995 * 3996 * XXX need to be able to defer some of these to properly handle 3997 * calling the "ID Physical drive" command, unless the 'extended' 3998 * drive IDs are always in BIG_MAP format. 3999 */ 4000 static void 4001 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn) 4002 { 4003 struct ciss_ldrive *ld; 4004 int ostatus, bus, target; 4005 4006 debug_called(2); 4007 4008 bus = cn->device.physical.bus; 4009 target = cn->data.logical_status.logical_drive; 4010 ld = &sc->ciss_logical[bus][target]; 4011 4012 switch (cn->subclass) { 4013 case CISS_NOTIFY_LOGICAL_STATUS: 4014 switch (cn->detail) { 4015 case 0: 4016 ciss_name_device(sc, bus, target); 4017 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n", 4018 cn->data.logical_status.logical_drive, ld->cl_name, 4019 ciss_name_ldrive_status(cn->data.logical_status.previous_state), 4020 ciss_name_ldrive_status(cn->data.logical_status.new_state), 4021 cn->data.logical_status.spare_state, 4022 "\20\1configured\2rebuilding\3failed\4in use\5available\n"); 4023 4024 /* 4025 * Update our idea of the drive's status. 4026 */ 4027 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state); 4028 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 4029 if (ld->cl_lstatus != NULL) 4030 ld->cl_lstatus->status = cn->data.logical_status.new_state; 4031 4032 /* 4033 * Have CAM rescan the drive if its status has changed. 4034 */ 4035 if (ostatus != ld->cl_status) { 4036 ld->cl_update = 1; 4037 ciss_notify_rescan_logical(sc); 4038 } 4039 4040 break; 4041 4042 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */ 4043 ciss_name_device(sc, bus, target); 4044 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n", 4045 cn->data.logical_status.logical_drive, ld->cl_name); 4046 ciss_accept_media(sc, ld); 4047 4048 ld->cl_update = 1; 4049 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 4050 ciss_notify_rescan_logical(sc); 4051 break; 4052 4053 case 2: 4054 case 3: 4055 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n", 4056 cn->data.rebuild_aborted.logical_drive, 4057 ld->cl_name, 4058 (cn->detail == 2) ? "read" : "write"); 4059 break; 4060 } 4061 break; 4062 4063 case CISS_NOTIFY_LOGICAL_ERROR: 4064 if (cn->detail == 0) { 4065 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n", 4066 cn->data.io_error.logical_drive, 4067 ld->cl_name, 4068 cn->data.io_error.failure_bus, 4069 cn->data.io_error.failure_drive); 4070 /* XXX should we take the drive down at this point, or will we be told? */ 4071 } 4072 break; 4073 4074 case CISS_NOTIFY_LOGICAL_SURFACE: 4075 if (cn->detail == 0) 4076 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n", 4077 cn->data.consistency_completed.logical_drive, 4078 ld->cl_name); 4079 break; 4080 } 4081 } 4082 4083 /************************************************************************ 4084 * Handle a notify event relating to the status of a physical drive. 4085 */ 4086 static void 4087 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn) 4088 { 4089 } 4090 4091 /************************************************************************ 4092 * Handle a notify event relating to the status of a physical drive. 4093 */ 4094 static void 4095 ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn) 4096 { 4097 struct ciss_lun_report *cll = NULL; 4098 int bus, target; 4099 4100 switch (cn->subclass) { 4101 case CISS_NOTIFY_HOTPLUG_PHYSICAL: 4102 case CISS_NOTIFY_HOTPLUG_NONDISK: 4103 bus = CISS_BIG_MAP_BUS(sc, cn->data.drive.big_physical_drive_number); 4104 target = 4105 CISS_BIG_MAP_TARGET(sc, cn->data.drive.big_physical_drive_number); 4106 4107 if (cn->detail == 0) { 4108 /* 4109 * Mark the device offline so that it'll start producing selection 4110 * timeouts to the upper layer. 4111 */ 4112 if ((bus >= 0) && (target >= 0)) 4113 sc->ciss_physical[bus][target].cp_online = 0; 4114 } else { 4115 /* 4116 * Rescan the physical lun list for new items 4117 */ 4118 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 4119 sc->ciss_cfg->max_physical_supported); 4120 if (cll == NULL) { 4121 ciss_printf(sc, "Warning, cannot get physical lun list\n"); 4122 break; 4123 } 4124 ciss_filter_physical(sc, cll); 4125 } 4126 break; 4127 4128 default: 4129 ciss_printf(sc, "Unknown hotplug event %d\n", cn->subclass); 4130 return; 4131 } 4132 4133 if (cll != NULL) 4134 free(cll, CISS_MALLOC_CLASS); 4135 } 4136 4137 /************************************************************************ 4138 * Handle deferred processing of notify events. Notify events may need 4139 * sleep which is unsafe during an interrupt. 4140 */ 4141 static void 4142 ciss_notify_thread(void *arg) 4143 { 4144 struct ciss_softc *sc; 4145 struct ciss_request *cr; 4146 struct ciss_notify *cn; 4147 4148 sc = (struct ciss_softc *)arg; 4149 mtx_lock(&sc->ciss_mtx); 4150 4151 for (;;) { 4152 if (STAILQ_EMPTY(&sc->ciss_notify) != 0 && 4153 (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) == 0) { 4154 msleep(&sc->ciss_notify, &sc->ciss_mtx, PUSER, "idle", 0); 4155 } 4156 4157 if (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) 4158 break; 4159 4160 cr = ciss_dequeue_notify(sc); 4161 4162 if (cr == NULL) 4163 panic("cr null"); 4164 cn = (struct ciss_notify *)cr->cr_data; 4165 4166 switch (cn->class) { 4167 case CISS_NOTIFY_HOTPLUG: 4168 ciss_notify_hotplug(sc, cn); 4169 break; 4170 case CISS_NOTIFY_LOGICAL: 4171 ciss_notify_logical(sc, cn); 4172 break; 4173 case CISS_NOTIFY_PHYSICAL: 4174 ciss_notify_physical(sc, cn); 4175 break; 4176 } 4177 4178 ciss_release_request(cr); 4179 } 4180 sc->ciss_notify_thread = NULL; 4181 wakeup(&sc->ciss_notify_thread); 4182 4183 mtx_unlock(&sc->ciss_mtx); 4184 kproc_exit(0); 4185 } 4186 4187 /************************************************************************ 4188 * Start the notification kernel thread. 4189 */ 4190 static void 4191 ciss_spawn_notify_thread(struct ciss_softc *sc) 4192 { 4193 4194 if (kproc_create((void(*)(void *))ciss_notify_thread, sc, 4195 &sc->ciss_notify_thread, 0, 0, "ciss_notify%d", 4196 device_get_unit(sc->ciss_dev))) 4197 panic("Could not create notify thread\n"); 4198 } 4199 4200 /************************************************************************ 4201 * Kill the notification kernel thread. 4202 */ 4203 static void 4204 ciss_kill_notify_thread(struct ciss_softc *sc) 4205 { 4206 4207 if (sc->ciss_notify_thread == NULL) 4208 return; 4209 4210 sc->ciss_flags |= CISS_FLAG_THREAD_SHUT; 4211 wakeup(&sc->ciss_notify); 4212 msleep(&sc->ciss_notify_thread, &sc->ciss_mtx, PUSER, "thtrm", 0); 4213 } 4214 4215 /************************************************************************ 4216 * Print a request. 4217 */ 4218 #ifdef DDB 4219 static void 4220 ciss_print_request(struct ciss_request *cr) 4221 { 4222 struct ciss_softc *sc; 4223 struct ciss_command *cc; 4224 int i; 4225 4226 sc = cr->cr_sc; 4227 cc = cr->cr_cc; 4228 4229 ciss_printf(sc, "REQUEST @ %p\n", cr); 4230 ciss_printf(sc, " data %p/%d tag %d flags %b\n", 4231 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags, 4232 "\20\1mapped\2sleep\3poll\4dataout\5datain\n"); 4233 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n", 4234 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag); 4235 switch(cc->header.address.mode.mode) { 4236 case CISS_HDR_ADDRESS_MODE_PERIPHERAL: 4237 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL: 4238 ciss_printf(sc, " physical bus %d target %d\n", 4239 cc->header.address.physical.bus, cc->header.address.physical.target); 4240 break; 4241 case CISS_HDR_ADDRESS_MODE_LOGICAL: 4242 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun); 4243 break; 4244 } 4245 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n", 4246 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" : 4247 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" : 4248 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??", 4249 cc->cdb.cdb_length, 4250 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" : 4251 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??", 4252 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" : 4253 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" : 4254 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" : 4255 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" : 4256 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??"); 4257 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " "); 4258 4259 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) { 4260 /* XXX print error info */ 4261 } else { 4262 /* since we don't use chained s/g, don't support it here */ 4263 for (i = 0; i < cc->header.sg_in_list; i++) { 4264 if ((i % 4) == 0) 4265 ciss_printf(sc, " "); 4266 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length); 4267 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1))) 4268 printf("\n"); 4269 } 4270 } 4271 } 4272 #endif 4273 4274 /************************************************************************ 4275 * Print information about the status of a logical drive. 4276 */ 4277 static void 4278 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld) 4279 { 4280 int bus, target, i; 4281 4282 if (ld->cl_lstatus == NULL) { 4283 printf("does not exist\n"); 4284 return; 4285 } 4286 4287 /* print drive status */ 4288 switch(ld->cl_lstatus->status) { 4289 case CISS_LSTATUS_OK: 4290 printf("online\n"); 4291 break; 4292 case CISS_LSTATUS_INTERIM_RECOVERY: 4293 printf("in interim recovery mode\n"); 4294 break; 4295 case CISS_LSTATUS_READY_RECOVERY: 4296 printf("ready to begin recovery\n"); 4297 break; 4298 case CISS_LSTATUS_RECOVERING: 4299 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4300 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4301 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n", 4302 bus, target, ld->cl_lstatus->blocks_to_recover); 4303 break; 4304 case CISS_LSTATUS_EXPANDING: 4305 printf("being expanded, %u blocks remaining\n", 4306 ld->cl_lstatus->blocks_to_recover); 4307 break; 4308 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4309 printf("queued for expansion\n"); 4310 break; 4311 case CISS_LSTATUS_FAILED: 4312 printf("queued for expansion\n"); 4313 break; 4314 case CISS_LSTATUS_WRONG_PDRIVE: 4315 printf("wrong physical drive inserted\n"); 4316 break; 4317 case CISS_LSTATUS_MISSING_PDRIVE: 4318 printf("missing a needed physical drive\n"); 4319 break; 4320 case CISS_LSTATUS_BECOMING_READY: 4321 printf("becoming ready\n"); 4322 break; 4323 } 4324 4325 /* print failed physical drives */ 4326 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) { 4327 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]); 4328 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]); 4329 if (bus == -1) 4330 continue; 4331 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target, 4332 ld->cl_lstatus->drive_failure_map[i]); 4333 } 4334 } 4335 4336 #ifdef DDB 4337 #include <ddb/ddb.h> 4338 /************************************************************************ 4339 * Print information about the controller/driver. 4340 */ 4341 static void 4342 ciss_print_adapter(struct ciss_softc *sc) 4343 { 4344 int i, j; 4345 4346 ciss_printf(sc, "ADAPTER:\n"); 4347 for (i = 0; i < CISSQ_COUNT; i++) { 4348 ciss_printf(sc, "%s %d/%d\n", 4349 i == 0 ? "free" : 4350 i == 1 ? "busy" : "complete", 4351 sc->ciss_qstat[i].q_length, 4352 sc->ciss_qstat[i].q_max); 4353 } 4354 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests); 4355 ciss_printf(sc, "flags %b\n", sc->ciss_flags, 4356 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n"); 4357 4358 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 4359 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) { 4360 ciss_printf(sc, "LOGICAL DRIVE %d: ", i); 4361 ciss_print_ldrive(sc, &sc->ciss_logical[i][j]); 4362 } 4363 } 4364 4365 /* XXX Should physical drives be printed out here? */ 4366 4367 for (i = 1; i < sc->ciss_max_requests; i++) 4368 ciss_print_request(sc->ciss_request + i); 4369 } 4370 4371 /* DDB hook */ 4372 DB_COMMAND(ciss_prt, db_ciss_prt) 4373 { 4374 struct ciss_softc *sc; 4375 devclass_t dc; 4376 int maxciss, i; 4377 4378 dc = devclass_find("ciss"); 4379 if ( dc == NULL ) { 4380 printf("%s: can't find devclass!\n", __func__); 4381 return; 4382 } 4383 maxciss = devclass_get_maxunit(dc); 4384 for (i = 0; i < maxciss; i++) { 4385 sc = devclass_get_softc(dc, i); 4386 ciss_print_adapter(sc); 4387 } 4388 } 4389 #endif 4390 4391 /************************************************************************ 4392 * Return a name for a logical drive status value. 4393 */ 4394 static const char * 4395 ciss_name_ldrive_status(int status) 4396 { 4397 switch (status) { 4398 case CISS_LSTATUS_OK: 4399 return("OK"); 4400 case CISS_LSTATUS_FAILED: 4401 return("failed"); 4402 case CISS_LSTATUS_NOT_CONFIGURED: 4403 return("not configured"); 4404 case CISS_LSTATUS_INTERIM_RECOVERY: 4405 return("interim recovery"); 4406 case CISS_LSTATUS_READY_RECOVERY: 4407 return("ready for recovery"); 4408 case CISS_LSTATUS_RECOVERING: 4409 return("recovering"); 4410 case CISS_LSTATUS_WRONG_PDRIVE: 4411 return("wrong physical drive inserted"); 4412 case CISS_LSTATUS_MISSING_PDRIVE: 4413 return("missing physical drive"); 4414 case CISS_LSTATUS_EXPANDING: 4415 return("expanding"); 4416 case CISS_LSTATUS_BECOMING_READY: 4417 return("becoming ready"); 4418 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4419 return("queued for expansion"); 4420 } 4421 return("unknown status"); 4422 } 4423 4424 /************************************************************************ 4425 * Return an online/offline/nonexistent value for a logical drive 4426 * status value. 4427 */ 4428 static int 4429 ciss_decode_ldrive_status(int status) 4430 { 4431 switch(status) { 4432 case CISS_LSTATUS_NOT_CONFIGURED: 4433 return(CISS_LD_NONEXISTENT); 4434 4435 case CISS_LSTATUS_OK: 4436 case CISS_LSTATUS_INTERIM_RECOVERY: 4437 case CISS_LSTATUS_READY_RECOVERY: 4438 case CISS_LSTATUS_RECOVERING: 4439 case CISS_LSTATUS_EXPANDING: 4440 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4441 return(CISS_LD_ONLINE); 4442 4443 case CISS_LSTATUS_FAILED: 4444 case CISS_LSTATUS_WRONG_PDRIVE: 4445 case CISS_LSTATUS_MISSING_PDRIVE: 4446 case CISS_LSTATUS_BECOMING_READY: 4447 default: 4448 return(CISS_LD_OFFLINE); 4449 } 4450 } 4451 4452 /************************************************************************ 4453 * Return a name for a logical drive's organisation. 4454 */ 4455 static const char * 4456 ciss_name_ldrive_org(int org) 4457 { 4458 switch(org) { 4459 case CISS_LDRIVE_RAID0: 4460 return("RAID 0"); 4461 case CISS_LDRIVE_RAID1: 4462 return("RAID 1(1+0)"); 4463 case CISS_LDRIVE_RAID4: 4464 return("RAID 4"); 4465 case CISS_LDRIVE_RAID5: 4466 return("RAID 5"); 4467 case CISS_LDRIVE_RAID51: 4468 return("RAID 5+1"); 4469 case CISS_LDRIVE_RAIDADG: 4470 return("RAID ADG"); 4471 } 4472 return("unknown"); 4473 } 4474 4475 /************************************************************************ 4476 * Return a name for a command status value. 4477 */ 4478 static const char * 4479 ciss_name_command_status(int status) 4480 { 4481 switch(status) { 4482 case CISS_CMD_STATUS_SUCCESS: 4483 return("success"); 4484 case CISS_CMD_STATUS_TARGET_STATUS: 4485 return("target status"); 4486 case CISS_CMD_STATUS_DATA_UNDERRUN: 4487 return("data underrun"); 4488 case CISS_CMD_STATUS_DATA_OVERRUN: 4489 return("data overrun"); 4490 case CISS_CMD_STATUS_INVALID_COMMAND: 4491 return("invalid command"); 4492 case CISS_CMD_STATUS_PROTOCOL_ERROR: 4493 return("protocol error"); 4494 case CISS_CMD_STATUS_HARDWARE_ERROR: 4495 return("hardware error"); 4496 case CISS_CMD_STATUS_CONNECTION_LOST: 4497 return("connection lost"); 4498 case CISS_CMD_STATUS_ABORTED: 4499 return("aborted"); 4500 case CISS_CMD_STATUS_ABORT_FAILED: 4501 return("abort failed"); 4502 case CISS_CMD_STATUS_UNSOLICITED_ABORT: 4503 return("unsolicited abort"); 4504 case CISS_CMD_STATUS_TIMEOUT: 4505 return("timeout"); 4506 case CISS_CMD_STATUS_UNABORTABLE: 4507 return("unabortable"); 4508 } 4509 return("unknown status"); 4510 } 4511 4512 /************************************************************************ 4513 * Handle an open on the control device. 4514 */ 4515 static int 4516 ciss_open(struct cdev *dev, int flags, int fmt, struct thread *p) 4517 { 4518 struct ciss_softc *sc; 4519 4520 debug_called(1); 4521 4522 sc = (struct ciss_softc *)dev->si_drv1; 4523 4524 /* we might want to veto if someone already has us open */ 4525 4526 mtx_lock(&sc->ciss_mtx); 4527 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN; 4528 mtx_unlock(&sc->ciss_mtx); 4529 return(0); 4530 } 4531 4532 /************************************************************************ 4533 * Handle the last close on the control device. 4534 */ 4535 static int 4536 ciss_close(struct cdev *dev, int flags, int fmt, struct thread *p) 4537 { 4538 struct ciss_softc *sc; 4539 4540 debug_called(1); 4541 4542 sc = (struct ciss_softc *)dev->si_drv1; 4543 4544 mtx_lock(&sc->ciss_mtx); 4545 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN; 4546 mtx_unlock(&sc->ciss_mtx); 4547 return (0); 4548 } 4549 4550 /******************************************************************************** 4551 * Handle adapter-specific control operations. 4552 * 4553 * Note that the API here is compatible with the Linux driver, in order to 4554 * simplify the porting of Compaq's userland tools. 4555 */ 4556 static int 4557 ciss_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag, struct thread *p) 4558 { 4559 struct ciss_softc *sc; 4560 IOCTL_Command_struct *ioc = (IOCTL_Command_struct *)addr; 4561 #ifdef __amd64__ 4562 IOCTL_Command_struct32 *ioc32 = (IOCTL_Command_struct32 *)addr; 4563 IOCTL_Command_struct ioc_swab; 4564 #endif 4565 int error; 4566 4567 debug_called(1); 4568 4569 sc = (struct ciss_softc *)dev->si_drv1; 4570 error = 0; 4571 mtx_lock(&sc->ciss_mtx); 4572 4573 switch(cmd) { 4574 case CCISS_GETQSTATS: 4575 { 4576 union ciss_statrequest *cr = (union ciss_statrequest *)addr; 4577 4578 switch (cr->cs_item) { 4579 case CISSQ_FREE: 4580 case CISSQ_NOTIFY: 4581 bcopy(&sc->ciss_qstat[cr->cs_item], &cr->cs_qstat, 4582 sizeof(struct ciss_qstat)); 4583 break; 4584 default: 4585 error = ENOIOCTL; 4586 break; 4587 } 4588 4589 break; 4590 } 4591 4592 case CCISS_GETPCIINFO: 4593 { 4594 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr; 4595 4596 pis->bus = pci_get_bus(sc->ciss_dev); 4597 pis->dev_fn = pci_get_slot(sc->ciss_dev); 4598 pis->board_id = (pci_get_subvendor(sc->ciss_dev) << 16) | 4599 pci_get_subdevice(sc->ciss_dev); 4600 4601 break; 4602 } 4603 4604 case CCISS_GETINTINFO: 4605 { 4606 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4607 4608 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay; 4609 cis->count = sc->ciss_cfg->interrupt_coalesce_count; 4610 4611 break; 4612 } 4613 4614 case CCISS_SETINTINFO: 4615 { 4616 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4617 4618 if ((cis->delay == 0) && (cis->count == 0)) { 4619 error = EINVAL; 4620 break; 4621 } 4622 4623 /* 4624 * XXX apparently this is only safe if the controller is idle, 4625 * we should suspend it before doing this. 4626 */ 4627 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay; 4628 sc->ciss_cfg->interrupt_coalesce_count = cis->count; 4629 4630 if (ciss_update_config(sc)) 4631 error = EIO; 4632 4633 /* XXX resume the controller here */ 4634 break; 4635 } 4636 4637 case CCISS_GETNODENAME: 4638 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr, 4639 sizeof(NodeName_type)); 4640 break; 4641 4642 case CCISS_SETNODENAME: 4643 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name, 4644 sizeof(NodeName_type)); 4645 if (ciss_update_config(sc)) 4646 error = EIO; 4647 break; 4648 4649 case CCISS_GETHEARTBEAT: 4650 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat; 4651 break; 4652 4653 case CCISS_GETBUSTYPES: 4654 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types; 4655 break; 4656 4657 case CCISS_GETFIRMVER: 4658 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr, 4659 sizeof(FirmwareVer_type)); 4660 break; 4661 4662 case CCISS_GETDRIVERVER: 4663 *(DriverVer_type *)addr = CISS_DRIVER_VERSION; 4664 break; 4665 4666 case CCISS_REVALIDVOLS: 4667 /* 4668 * This is a bit ugly; to do it "right" we really need 4669 * to find any disks that have changed, kick CAM off them, 4670 * then rescan only these disks. It'd be nice if they 4671 * a) told us which disk(s) they were going to play with, 4672 * and b) which ones had arrived. 8( 4673 */ 4674 break; 4675 4676 #ifdef __amd64__ 4677 case CCISS_PASSTHRU32: 4678 ioc_swab.LUN_info = ioc32->LUN_info; 4679 ioc_swab.Request = ioc32->Request; 4680 ioc_swab.error_info = ioc32->error_info; 4681 ioc_swab.buf_size = ioc32->buf_size; 4682 ioc_swab.buf = (u_int8_t *)(uintptr_t)ioc32->buf; 4683 ioc = &ioc_swab; 4684 /* FALLTHROUGH */ 4685 #endif 4686 4687 case CCISS_PASSTHRU: 4688 error = ciss_user_command(sc, ioc); 4689 break; 4690 4691 default: 4692 debug(0, "unknown ioctl 0x%lx", cmd); 4693 4694 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO); 4695 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO); 4696 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO); 4697 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME); 4698 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME); 4699 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT); 4700 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES); 4701 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER); 4702 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER); 4703 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS); 4704 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU); 4705 4706 error = ENOIOCTL; 4707 break; 4708 } 4709 4710 mtx_unlock(&sc->ciss_mtx); 4711 return(error); 4712 } 4713