1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 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 30 /* 31 * Common Interface for SCSI-3 Support driver. 32 * 33 * CISS claims to provide a common interface between a generic SCSI 34 * transport and an intelligent host adapter. 35 * 36 * This driver supports CISS as defined in the document "CISS Command 37 * Interface for SCSI-3 Support Open Specification", Version 1.04, 38 * Valence Number 1, dated 20001127, produced by Compaq Computer 39 * Corporation. This document appears to be a hastily and somewhat 40 * arbitrarlily cut-down version of a larger (and probably even more 41 * chaotic and inconsistent) Compaq internal document. Various 42 * details were also gleaned from Compaq's "cciss" driver for Linux. 43 * 44 * We provide a shim layer between the CISS interface and CAM, 45 * offloading most of the queueing and being-a-disk chores onto CAM. 46 * Entry to the driver is via the PCI bus attachment (ciss_probe, 47 * ciss_attach, etc) and via the CAM interface (ciss_cam_action, 48 * ciss_cam_poll). The Compaq CISS adapters are, however, poor SCSI 49 * citizens and we have to fake up some responses to get reasonable 50 * behaviour out of them. In addition, the CISS command set is by no 51 * means adequate to support the functionality of a RAID controller, 52 * and thus the supported Compaq adapters utilise portions of the 53 * control protocol from earlier Compaq adapter families. 54 * 55 * Note that we only support the "simple" transport layer over PCI. 56 * This interface (ab)uses the I2O register set (specifically the post 57 * queues) to exchange commands with the adapter. Other interfaces 58 * are available, but we aren't supposed to know about them, and it is 59 * dubious whether they would provide major performance improvements 60 * except under extreme load. 61 * 62 * Currently the only supported CISS adapters are the Compaq Smart 63 * Array 5* series (5300, 5i, 532). Even with only three adapters, 64 * Compaq still manage to have interface variations. 65 * 66 * 67 * Thanks must go to Fred Harris and Darryl DeVinney at Compaq, as 68 * well as Paul Saab at Yahoo! for their assistance in making this 69 * driver happen. 70 * 71 * More thanks must go to John Cagle at HP for the countless hours 72 * spent making this driver "work" with the MSA* series storage 73 * enclosures. Without his help (and nagging), this driver could not 74 * be used with these enclosures. 75 */ 76 77 #include <sys/param.h> 78 #include <sys/systm.h> 79 #include <sys/malloc.h> 80 #include <sys/kernel.h> 81 #include <sys/bus.h> 82 #include <sys/conf.h> 83 #include <sys/stat.h> 84 #include <sys/kthread.h> 85 #include <sys/queue.h> 86 #include <sys/sysctl.h> 87 88 #include <cam/cam.h> 89 #include <cam/cam_ccb.h> 90 #include <cam/cam_periph.h> 91 #include <cam/cam_sim.h> 92 #include <cam/cam_xpt_sim.h> 93 #include <cam/scsi/scsi_all.h> 94 #include <cam/scsi/scsi_message.h> 95 96 #include <machine/bus.h> 97 #include <machine/endian.h> 98 #include <machine/resource.h> 99 #include <sys/rman.h> 100 101 #include <dev/pci/pcireg.h> 102 #include <dev/pci/pcivar.h> 103 104 #include <dev/ciss/cissreg.h> 105 #include <dev/ciss/cissio.h> 106 #include <dev/ciss/cissvar.h> 107 108 #ifdef CISS_DEBUG 109 #include "opt_ddb.h" 110 #endif 111 112 static MALLOC_DEFINE(CISS_MALLOC_CLASS, "ciss_data", 113 "ciss internal data buffers"); 114 115 /* pci interface */ 116 static int ciss_lookup(device_t dev); 117 static int ciss_probe(device_t dev); 118 static int ciss_attach(device_t dev); 119 static int ciss_detach(device_t dev); 120 static int ciss_shutdown(device_t dev); 121 122 /* (de)initialisation functions, control wrappers */ 123 static int ciss_init_pci(struct ciss_softc *sc); 124 static int ciss_setup_msix(struct ciss_softc *sc); 125 static int ciss_init_perf(struct ciss_softc *sc); 126 static int ciss_wait_adapter(struct ciss_softc *sc); 127 static int ciss_flush_adapter(struct ciss_softc *sc); 128 static int ciss_init_requests(struct ciss_softc *sc); 129 static void ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, 130 int nseg, int error); 131 static int ciss_identify_adapter(struct ciss_softc *sc); 132 static int ciss_init_logical(struct ciss_softc *sc); 133 static int ciss_init_physical(struct ciss_softc *sc); 134 static int ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll); 135 static int ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld); 136 static int ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld); 137 static int ciss_update_config(struct ciss_softc *sc); 138 static int ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld); 139 static void ciss_init_sysctl(struct ciss_softc *sc); 140 static void ciss_soft_reset(struct ciss_softc *sc); 141 static void ciss_free(struct ciss_softc *sc); 142 static void ciss_spawn_notify_thread(struct ciss_softc *sc); 143 static void ciss_kill_notify_thread(struct ciss_softc *sc); 144 145 /* request submission/completion */ 146 static int ciss_start(struct ciss_request *cr); 147 static void ciss_done(struct ciss_softc *sc, cr_qhead_t *qh); 148 static void ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh); 149 static void ciss_intr(void *arg); 150 static void ciss_perf_intr(void *arg); 151 static void ciss_perf_msi_intr(void *arg); 152 static void ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh); 153 static int _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func); 154 static int ciss_synch_request(struct ciss_request *cr, int timeout); 155 static int ciss_poll_request(struct ciss_request *cr, int timeout); 156 static int ciss_wait_request(struct ciss_request *cr, int timeout); 157 #if 0 158 static int ciss_abort_request(struct ciss_request *cr); 159 #endif 160 161 /* request queueing */ 162 static int ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp); 163 static void ciss_preen_command(struct ciss_request *cr); 164 static void ciss_release_request(struct ciss_request *cr); 165 166 /* request helpers */ 167 static int ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 168 int opcode, void **bufp, size_t bufsize); 169 static int ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc); 170 171 /* DMA map/unmap */ 172 static int ciss_map_request(struct ciss_request *cr); 173 static void ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, 174 int nseg, int error); 175 static void ciss_unmap_request(struct ciss_request *cr); 176 177 /* CAM interface */ 178 static int ciss_cam_init(struct ciss_softc *sc); 179 static void ciss_cam_rescan_target(struct ciss_softc *sc, 180 int bus, int target); 181 static void ciss_cam_action(struct cam_sim *sim, union ccb *ccb); 182 static int ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio); 183 static int ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio); 184 static void ciss_cam_poll(struct cam_sim *sim); 185 static void ciss_cam_complete(struct ciss_request *cr); 186 static void ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio); 187 static int ciss_name_device(struct ciss_softc *sc, int bus, int target); 188 189 /* periodic status monitoring */ 190 static void ciss_periodic(void *arg); 191 static void ciss_nop_complete(struct ciss_request *cr); 192 static void ciss_disable_adapter(struct ciss_softc *sc); 193 static void ciss_notify_event(struct ciss_softc *sc); 194 static void ciss_notify_complete(struct ciss_request *cr); 195 static int ciss_notify_abort(struct ciss_softc *sc); 196 static int ciss_notify_abort_bmic(struct ciss_softc *sc); 197 static void ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn); 198 static void ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn); 199 static void ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn); 200 201 /* debugging output */ 202 #ifdef DDB 203 static void ciss_print_request(struct ciss_request *cr); 204 #endif 205 static void ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld); 206 static const char *ciss_name_ldrive_status(int status); 207 static int ciss_decode_ldrive_status(int status); 208 static const char *ciss_name_ldrive_org(int org); 209 static const char *ciss_name_command_status(int status); 210 211 /* 212 * PCI bus interface. 213 */ 214 static device_method_t ciss_methods[] = { 215 /* Device interface */ 216 DEVMETHOD(device_probe, ciss_probe), 217 DEVMETHOD(device_attach, ciss_attach), 218 DEVMETHOD(device_detach, ciss_detach), 219 DEVMETHOD(device_shutdown, ciss_shutdown), 220 { 0, 0 } 221 }; 222 223 static driver_t ciss_pci_driver = { 224 "ciss", 225 ciss_methods, 226 sizeof(struct ciss_softc) 227 }; 228 229 /* 230 * Control device interface. 231 */ 232 static d_open_t ciss_open; 233 static d_close_t ciss_close; 234 static d_ioctl_t ciss_ioctl; 235 236 static struct cdevsw ciss_cdevsw = { 237 .d_version = D_VERSION, 238 .d_flags = 0, 239 .d_open = ciss_open, 240 .d_close = ciss_close, 241 .d_ioctl = ciss_ioctl, 242 .d_name = "ciss", 243 }; 244 245 SYSCTL_NODE(_hw, OID_AUTO, ciss, CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "CISS sysctl tunables"); 246 247 /* 248 * This tunable can be used to force a specific initiator id 249 */ 250 static int ciss_initiator_id = CAM_TARGET_WILDCARD; 251 SYSCTL_INT(_hw_ciss, OID_AUTO, initiator_id, CTLFLAG_RDTUN, 252 &ciss_initiator_id, 0, 253 "force a specific initiator id"); 254 255 /* 256 * This tunable can be used to force a specific initiator id 257 */ 258 static int ciss_base_transfer_speed = 132 * 1024; 259 SYSCTL_INT(_hw_ciss, OID_AUTO, base_transfer_speed, CTLFLAG_RDTUN, 260 &ciss_base_transfer_speed, 0, 261 "force a specific base transfer_speed"); 262 263 /* 264 * This tunable can be set to make the driver be more verbose 265 */ 266 static int ciss_verbose = 0; 267 SYSCTL_INT(_hw_ciss, OID_AUTO, verbose, CTLFLAG_RWTUN, &ciss_verbose, 0, 268 "enable verbose messages"); 269 270 /* 271 * This tunable can be set at boot time and controls whether physical devices 272 * that are marked hidden by the firmware should be exposed anyways. 273 */ 274 static unsigned int ciss_expose_hidden_physical = 0; 275 TUNABLE_INT("hw.ciss.expose_hidden_physical", &ciss_expose_hidden_physical); 276 SYSCTL_INT(_hw_ciss, OID_AUTO, expose_hidden_physical, CTLFLAG_RWTUN, 277 &ciss_expose_hidden_physical, 0, 278 "expose hidden physical drives"); 279 280 static unsigned int ciss_nop_message_heartbeat = 0; 281 TUNABLE_INT("hw.ciss.nop_message_heartbeat", &ciss_nop_message_heartbeat); 282 SYSCTL_INT(_hw_ciss, OID_AUTO, nop_message_heartbeat, CTLFLAG_RWTUN, 283 &ciss_nop_message_heartbeat, 0, 284 "nop heartbeat messages"); 285 286 /* 287 * This tunable can force a particular transport to be used: 288 * <= 0 : use default 289 * 1 : force simple 290 * 2 : force performant 291 */ 292 static int ciss_force_transport = 0; 293 TUNABLE_INT("hw.ciss.force_transport", &ciss_force_transport); 294 SYSCTL_INT(_hw_ciss, OID_AUTO, force_transport, CTLFLAG_RDTUN, 295 &ciss_force_transport, 0, 296 "use default (0), force simple (1) or force performant (2) transport"); 297 298 /* 299 * This tunable can force a particular interrupt delivery method to be used: 300 * <= 0 : use default 301 * 1 : force INTx 302 * 2 : force MSIX 303 */ 304 static int ciss_force_interrupt = 0; 305 TUNABLE_INT("hw.ciss.force_interrupt", &ciss_force_interrupt); 306 SYSCTL_INT(_hw_ciss, OID_AUTO, force_interrupt, CTLFLAG_RDTUN, 307 &ciss_force_interrupt, 0, 308 "use default (0), force INTx (1) or force MSIx(2) interrupts"); 309 310 /************************************************************************ 311 * CISS adapters amazingly don't have a defined programming interface 312 * value. (One could say some very despairing things about PCI and 313 * people just not getting the general idea.) So we are forced to 314 * stick with matching against subvendor/subdevice, and thus have to 315 * be updated for every new CISS adapter that appears. 316 */ 317 #define CISS_BOARD_UNKNOWN 0 318 #define CISS_BOARD_SA5 1 319 #define CISS_BOARD_SA5B 2 320 #define CISS_BOARD_NOMSI (1<<4) 321 #define CISS_BOARD_SIMPLE (1<<5) 322 323 static struct 324 { 325 u_int16_t subvendor; 326 u_int16_t subdevice; 327 int flags; 328 char *desc; 329 } ciss_vendor_data[] = { 330 { 0x0e11, 0x4070, CISS_BOARD_SA5|CISS_BOARD_NOMSI|CISS_BOARD_SIMPLE, 331 "Compaq Smart Array 5300" }, 332 { 0x0e11, 0x4080, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 5i" }, 333 { 0x0e11, 0x4082, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "Compaq Smart Array 532" }, 334 { 0x0e11, 0x4083, CISS_BOARD_SA5B|CISS_BOARD_NOMSI, "HP Smart Array 5312" }, 335 { 0x0e11, 0x4091, CISS_BOARD_SA5, "HP Smart Array 6i" }, 336 { 0x0e11, 0x409A, CISS_BOARD_SA5, "HP Smart Array 641" }, 337 { 0x0e11, 0x409B, CISS_BOARD_SA5, "HP Smart Array 642" }, 338 { 0x0e11, 0x409C, CISS_BOARD_SA5, "HP Smart Array 6400" }, 339 { 0x0e11, 0x409D, CISS_BOARD_SA5, "HP Smart Array 6400 EM" }, 340 { 0x103C, 0x3211, CISS_BOARD_SA5, "HP Smart Array E200i" }, 341 { 0x103C, 0x3212, CISS_BOARD_SA5, "HP Smart Array E200" }, 342 { 0x103C, 0x3213, CISS_BOARD_SA5, "HP Smart Array E200i" }, 343 { 0x103C, 0x3214, CISS_BOARD_SA5, "HP Smart Array E200i" }, 344 { 0x103C, 0x3215, CISS_BOARD_SA5, "HP Smart Array E200i" }, 345 { 0x103C, 0x3220, CISS_BOARD_SA5, "HP Smart Array" }, 346 { 0x103C, 0x3222, CISS_BOARD_SA5, "HP Smart Array" }, 347 { 0x103C, 0x3223, CISS_BOARD_SA5, "HP Smart Array P800" }, 348 { 0x103C, 0x3225, CISS_BOARD_SA5, "HP Smart Array P600" }, 349 { 0x103C, 0x3230, CISS_BOARD_SA5, "HP Smart Array" }, 350 { 0x103C, 0x3231, CISS_BOARD_SA5, "HP Smart Array" }, 351 { 0x103C, 0x3232, CISS_BOARD_SA5, "HP Smart Array" }, 352 { 0x103C, 0x3233, CISS_BOARD_SA5, "HP Smart Array" }, 353 { 0x103C, 0x3234, CISS_BOARD_SA5, "HP Smart Array P400" }, 354 { 0x103C, 0x3235, CISS_BOARD_SA5, "HP Smart Array P400i" }, 355 { 0x103C, 0x3236, CISS_BOARD_SA5, "HP Smart Array" }, 356 { 0x103C, 0x3237, CISS_BOARD_SA5, "HP Smart Array E500" }, 357 { 0x103C, 0x3238, CISS_BOARD_SA5, "HP Smart Array" }, 358 { 0x103C, 0x3239, CISS_BOARD_SA5, "HP Smart Array" }, 359 { 0x103C, 0x323A, CISS_BOARD_SA5, "HP Smart Array" }, 360 { 0x103C, 0x323B, CISS_BOARD_SA5, "HP Smart Array" }, 361 { 0x103C, 0x323C, CISS_BOARD_SA5, "HP Smart Array" }, 362 { 0x103C, 0x323D, CISS_BOARD_SA5, "HP Smart Array P700m" }, 363 { 0x103C, 0x3241, CISS_BOARD_SA5, "HP Smart Array P212" }, 364 { 0x103C, 0x3243, CISS_BOARD_SA5, "HP Smart Array P410" }, 365 { 0x103C, 0x3245, CISS_BOARD_SA5, "HP Smart Array P410i" }, 366 { 0x103C, 0x3247, CISS_BOARD_SA5, "HP Smart Array P411" }, 367 { 0x103C, 0x3249, CISS_BOARD_SA5, "HP Smart Array P812" }, 368 { 0x103C, 0x324A, CISS_BOARD_SA5, "HP Smart Array P712m" }, 369 { 0x103C, 0x324B, CISS_BOARD_SA5, "HP Smart Array" }, 370 { 0x103C, 0x3350, CISS_BOARD_SA5, "HP Smart Array P222" }, 371 { 0x103C, 0x3351, CISS_BOARD_SA5, "HP Smart Array P420" }, 372 { 0x103C, 0x3352, CISS_BOARD_SA5, "HP Smart Array P421" }, 373 { 0x103C, 0x3353, CISS_BOARD_SA5, "HP Smart Array P822" }, 374 { 0x103C, 0x3354, CISS_BOARD_SA5, "HP Smart Array P420i" }, 375 { 0x103C, 0x3355, CISS_BOARD_SA5, "HP Smart Array P220i" }, 376 { 0x103C, 0x3356, CISS_BOARD_SA5, "HP Smart Array P721m" }, 377 { 0x103C, 0x1920, CISS_BOARD_SA5, "HP Smart Array P430i" }, 378 { 0x103C, 0x1921, CISS_BOARD_SA5, "HP Smart Array P830i" }, 379 { 0x103C, 0x1922, CISS_BOARD_SA5, "HP Smart Array P430" }, 380 { 0x103C, 0x1923, CISS_BOARD_SA5, "HP Smart Array P431" }, 381 { 0x103C, 0x1924, CISS_BOARD_SA5, "HP Smart Array P830" }, 382 { 0x103C, 0x1926, CISS_BOARD_SA5, "HP Smart Array P731m" }, 383 { 0x103C, 0x1928, CISS_BOARD_SA5, "HP Smart Array P230i" }, 384 { 0x103C, 0x1929, CISS_BOARD_SA5, "HP Smart Array P530" }, 385 { 0x103C, 0x192A, CISS_BOARD_SA5, "HP Smart Array P531" }, 386 { 0x103C, 0x21BD, CISS_BOARD_SA5, "HP Smart Array P244br" }, 387 { 0x103C, 0x21BE, CISS_BOARD_SA5, "HP Smart Array P741m" }, 388 { 0x103C, 0x21BF, CISS_BOARD_SA5, "HP Smart Array H240ar" }, 389 { 0x103C, 0x21C0, CISS_BOARD_SA5, "HP Smart Array P440ar" }, 390 { 0x103C, 0x21C1, CISS_BOARD_SA5, "HP Smart Array P840ar" }, 391 { 0x103C, 0x21C2, CISS_BOARD_SA5, "HP Smart Array P440" }, 392 { 0x103C, 0x21C3, CISS_BOARD_SA5, "HP Smart Array P441" }, 393 { 0x103C, 0x21C5, CISS_BOARD_SA5, "HP Smart Array P841" }, 394 { 0x103C, 0x21C6, CISS_BOARD_SA5, "HP Smart Array H244br" }, 395 { 0x103C, 0x21C7, CISS_BOARD_SA5, "HP Smart Array H240" }, 396 { 0x103C, 0x21C8, CISS_BOARD_SA5, "HP Smart Array H241" }, 397 { 0x103C, 0x21CA, CISS_BOARD_SA5, "HP Smart Array P246br" }, 398 { 0x103C, 0x21CB, CISS_BOARD_SA5, "HP Smart Array P840" }, 399 { 0x103C, 0x21CC, CISS_BOARD_SA5, "HP Smart Array P542d" }, 400 { 0x103C, 0x21CD, CISS_BOARD_SA5, "HP Smart Array P240nr" }, 401 { 0x103C, 0x21CE, CISS_BOARD_SA5, "HP Smart Array H240nr" }, 402 { 0, 0, 0, NULL } 403 }; 404 405 DRIVER_MODULE(ciss, pci, ciss_pci_driver, 0, 0); 406 MODULE_PNP_INFO("U16:vendor;U16:device;", pci, ciss, ciss_vendor_data, 407 nitems(ciss_vendor_data) - 1); 408 MODULE_DEPEND(ciss, cam, 1, 1, 1); 409 MODULE_DEPEND(ciss, pci, 1, 1, 1); 410 411 /************************************************************************ 412 * Find a match for the device in our list of known adapters. 413 */ 414 static int 415 ciss_lookup(device_t dev) 416 { 417 int i; 418 419 for (i = 0; ciss_vendor_data[i].desc != NULL; i++) 420 if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) && 421 (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) { 422 return(i); 423 } 424 return(-1); 425 } 426 427 /************************************************************************ 428 * Match a known CISS adapter. 429 */ 430 static int 431 ciss_probe(device_t dev) 432 { 433 int i; 434 435 i = ciss_lookup(dev); 436 if (i != -1) { 437 device_set_desc(dev, ciss_vendor_data[i].desc); 438 return(BUS_PROBE_DEFAULT); 439 } 440 return(ENOENT); 441 } 442 443 /************************************************************************ 444 * Attach the driver to this adapter. 445 */ 446 static int 447 ciss_attach(device_t dev) 448 { 449 struct ciss_softc *sc; 450 int error; 451 452 debug_called(1); 453 454 #ifdef CISS_DEBUG 455 /* print structure/union sizes */ 456 debug_struct(ciss_command); 457 debug_struct(ciss_header); 458 debug_union(ciss_device_address); 459 debug_struct(ciss_cdb); 460 debug_struct(ciss_report_cdb); 461 debug_struct(ciss_notify_cdb); 462 debug_struct(ciss_notify); 463 debug_struct(ciss_message_cdb); 464 debug_struct(ciss_error_info_pointer); 465 debug_struct(ciss_error_info); 466 debug_struct(ciss_sg_entry); 467 debug_struct(ciss_config_table); 468 debug_struct(ciss_bmic_cdb); 469 debug_struct(ciss_bmic_id_ldrive); 470 debug_struct(ciss_bmic_id_lstatus); 471 debug_struct(ciss_bmic_id_table); 472 debug_struct(ciss_bmic_id_pdrive); 473 debug_struct(ciss_bmic_blink_pdrive); 474 debug_struct(ciss_bmic_flush_cache); 475 debug_const(CISS_MAX_REQUESTS); 476 debug_const(CISS_MAX_LOGICAL); 477 debug_const(CISS_INTERRUPT_COALESCE_DELAY); 478 debug_const(CISS_INTERRUPT_COALESCE_COUNT); 479 debug_const(CISS_COMMAND_ALLOC_SIZE); 480 debug_const(CISS_COMMAND_SG_LENGTH); 481 482 debug_type(cciss_pci_info_struct); 483 debug_type(cciss_coalint_struct); 484 debug_type(cciss_coalint_struct); 485 debug_type(NodeName_type); 486 debug_type(NodeName_type); 487 debug_type(Heartbeat_type); 488 debug_type(BusTypes_type); 489 debug_type(FirmwareVer_type); 490 debug_type(DriverVer_type); 491 debug_type(IOCTL_Command_struct); 492 #endif 493 494 sc = device_get_softc(dev); 495 sc->ciss_dev = dev; 496 mtx_init(&sc->ciss_mtx, "cissmtx", NULL, MTX_DEF); 497 callout_init_mtx(&sc->ciss_periodic, &sc->ciss_mtx, 0); 498 499 /* 500 * Do PCI-specific init. 501 */ 502 if ((error = ciss_init_pci(sc)) != 0) 503 goto out; 504 505 /* 506 * Initialise driver queues. 507 */ 508 ciss_initq_free(sc); 509 ciss_initq_notify(sc); 510 511 /* 512 * Initialize device sysctls. 513 */ 514 ciss_init_sysctl(sc); 515 516 /* 517 * Initialise command/request pool. 518 */ 519 if ((error = ciss_init_requests(sc)) != 0) 520 goto out; 521 522 /* 523 * Get adapter information. 524 */ 525 if ((error = ciss_identify_adapter(sc)) != 0) 526 goto out; 527 528 /* 529 * Find all the physical devices. 530 */ 531 if ((error = ciss_init_physical(sc)) != 0) 532 goto out; 533 534 /* 535 * Build our private table of logical devices. 536 */ 537 if ((error = ciss_init_logical(sc)) != 0) 538 goto out; 539 540 /* 541 * Enable interrupts so that the CAM scan can complete. 542 */ 543 CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc); 544 545 /* 546 * Initialise the CAM interface. 547 */ 548 if ((error = ciss_cam_init(sc)) != 0) 549 goto out; 550 551 /* 552 * Start the heartbeat routine and event chain. 553 */ 554 ciss_periodic(sc); 555 556 /* 557 * Create the control device. 558 */ 559 sc->ciss_dev_t = make_dev(&ciss_cdevsw, device_get_unit(sc->ciss_dev), 560 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR, 561 "ciss%d", device_get_unit(sc->ciss_dev)); 562 sc->ciss_dev_t->si_drv1 = sc; 563 564 /* 565 * The adapter is running; synchronous commands can now sleep 566 * waiting for an interrupt to signal completion. 567 */ 568 sc->ciss_flags |= CISS_FLAG_RUNNING; 569 570 ciss_spawn_notify_thread(sc); 571 572 error = 0; 573 out: 574 if (error != 0) { 575 /* ciss_free() expects the mutex to be held */ 576 mtx_lock(&sc->ciss_mtx); 577 ciss_free(sc); 578 } 579 return(error); 580 } 581 582 /************************************************************************ 583 * Detach the driver from this adapter. 584 */ 585 static int 586 ciss_detach(device_t dev) 587 { 588 struct ciss_softc *sc = device_get_softc(dev); 589 590 debug_called(1); 591 592 mtx_lock(&sc->ciss_mtx); 593 if (sc->ciss_flags & CISS_FLAG_CONTROL_OPEN) { 594 mtx_unlock(&sc->ciss_mtx); 595 return (EBUSY); 596 } 597 598 /* flush adapter cache */ 599 ciss_flush_adapter(sc); 600 601 /* release all resources. The mutex is released and freed here too. */ 602 ciss_free(sc); 603 604 return(0); 605 } 606 607 /************************************************************************ 608 * Prepare adapter for system shutdown. 609 */ 610 static int 611 ciss_shutdown(device_t dev) 612 { 613 struct ciss_softc *sc = device_get_softc(dev); 614 615 debug_called(1); 616 617 mtx_lock(&sc->ciss_mtx); 618 /* flush adapter cache */ 619 ciss_flush_adapter(sc); 620 621 if (sc->ciss_soft_reset) 622 ciss_soft_reset(sc); 623 mtx_unlock(&sc->ciss_mtx); 624 625 return(0); 626 } 627 628 static void 629 ciss_init_sysctl(struct ciss_softc *sc) 630 { 631 632 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->ciss_dev), 633 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ciss_dev)), 634 OID_AUTO, "soft_reset", CTLFLAG_RW, &sc->ciss_soft_reset, 0, ""); 635 } 636 637 /************************************************************************ 638 * Perform PCI-specific attachment actions. 639 */ 640 static int 641 ciss_init_pci(struct ciss_softc *sc) 642 { 643 uintptr_t cbase, csize, cofs; 644 uint32_t method, supported_methods; 645 int error, sqmask, i; 646 void *intr; 647 648 debug_called(1); 649 650 /* 651 * Work out adapter type. 652 */ 653 i = ciss_lookup(sc->ciss_dev); 654 if (i < 0) { 655 ciss_printf(sc, "unknown adapter type\n"); 656 return (ENXIO); 657 } 658 659 if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) { 660 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5; 661 } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) { 662 sqmask = CISS_TL_SIMPLE_INTR_OPQ_SA5B; 663 } else { 664 /* 665 * XXX Big hammer, masks/unmasks all possible interrupts. This should 666 * work on all hardware variants. Need to add code to handle the 667 * "controller crashed" interrupt bit that this unmasks. 668 */ 669 sqmask = ~0; 670 } 671 672 /* 673 * Allocate register window first (we need this to find the config 674 * struct). 675 */ 676 error = ENXIO; 677 sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS; 678 if ((sc->ciss_regs_resource = 679 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 680 &sc->ciss_regs_rid, RF_ACTIVE)) == NULL) { 681 ciss_printf(sc, "can't allocate register window\n"); 682 return(ENXIO); 683 } 684 sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource); 685 sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource); 686 687 /* 688 * Find the BAR holding the config structure. If it's not the one 689 * we already mapped for registers, map it too. 690 */ 691 sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff; 692 if (sc->ciss_cfg_rid != sc->ciss_regs_rid) { 693 if ((sc->ciss_cfg_resource = 694 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_MEMORY, 695 &sc->ciss_cfg_rid, RF_ACTIVE)) == NULL) { 696 ciss_printf(sc, "can't allocate config window\n"); 697 return(ENXIO); 698 } 699 cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource); 700 csize = rman_get_end(sc->ciss_cfg_resource) - 701 rman_get_start(sc->ciss_cfg_resource) + 1; 702 } else { 703 cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource); 704 csize = rman_get_end(sc->ciss_regs_resource) - 705 rman_get_start(sc->ciss_regs_resource) + 1; 706 } 707 cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF); 708 709 /* 710 * Use the base/size/offset values we just calculated to 711 * sanity-check the config structure. If it's OK, point to it. 712 */ 713 if ((cofs + sizeof(struct ciss_config_table)) > csize) { 714 ciss_printf(sc, "config table outside window\n"); 715 return(ENXIO); 716 } 717 sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs); 718 debug(1, "config struct at %p", sc->ciss_cfg); 719 720 /* 721 * Calculate the number of request structures/commands we are 722 * going to provide for this adapter. 723 */ 724 sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands); 725 726 /* 727 * Validate the config structure. If we supported other transport 728 * methods, we could select amongst them at this point in time. 729 */ 730 if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) { 731 ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n", 732 sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1], 733 sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]); 734 return(ENXIO); 735 } 736 737 /* 738 * Select the mode of operation, prefer Performant. 739 */ 740 if (!(sc->ciss_cfg->supported_methods & 741 (CISS_TRANSPORT_METHOD_SIMPLE | CISS_TRANSPORT_METHOD_PERF))) { 742 ciss_printf(sc, "No supported transport layers: 0x%x\n", 743 sc->ciss_cfg->supported_methods); 744 } 745 746 switch (ciss_force_transport) { 747 case 1: 748 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE; 749 break; 750 case 2: 751 supported_methods = CISS_TRANSPORT_METHOD_PERF; 752 break; 753 default: 754 /* 755 * Override the capabilities of the BOARD and specify SIMPLE 756 * MODE 757 */ 758 if (ciss_vendor_data[i].flags & CISS_BOARD_SIMPLE) 759 supported_methods = CISS_TRANSPORT_METHOD_SIMPLE; 760 else 761 supported_methods = sc->ciss_cfg->supported_methods; 762 break; 763 } 764 765 setup: 766 if ((supported_methods & CISS_TRANSPORT_METHOD_PERF) != 0) { 767 method = CISS_TRANSPORT_METHOD_PERF; 768 sc->ciss_perf = (struct ciss_perf_config *)(cbase + cofs + 769 sc->ciss_cfg->transport_offset); 770 if (ciss_init_perf(sc)) { 771 supported_methods &= ~method; 772 goto setup; 773 } 774 } else if (supported_methods & CISS_TRANSPORT_METHOD_SIMPLE) { 775 method = CISS_TRANSPORT_METHOD_SIMPLE; 776 } else { 777 ciss_printf(sc, "No supported transport methods: 0x%x\n", 778 sc->ciss_cfg->supported_methods); 779 return(ENXIO); 780 } 781 782 /* 783 * Tell it we're using the low 4GB of RAM. Set the default interrupt 784 * coalescing options. 785 */ 786 sc->ciss_cfg->requested_method = method; 787 sc->ciss_cfg->command_physlimit = 0; 788 sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY; 789 sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT; 790 791 #ifdef __i386__ 792 sc->ciss_cfg->host_driver |= CISS_DRIVER_SCSI_PREFETCH; 793 #endif 794 795 if (ciss_update_config(sc)) { 796 ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n", 797 CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR)); 798 return(ENXIO); 799 } 800 if ((sc->ciss_cfg->active_method & method) == 0) { 801 supported_methods &= ~method; 802 if (supported_methods == 0) { 803 ciss_printf(sc, "adapter refuses to go into available transports " 804 "mode (0x%x, 0x%x)\n", supported_methods, 805 sc->ciss_cfg->active_method); 806 return(ENXIO); 807 } else 808 goto setup; 809 } 810 811 /* 812 * Wait for the adapter to come ready. 813 */ 814 if ((error = ciss_wait_adapter(sc)) != 0) 815 return(error); 816 817 /* Prepare to possibly use MSIX and/or PERFORMANT interrupts. Normal 818 * interrupts have a rid of 0, this will be overridden if MSIX is used. 819 */ 820 sc->ciss_irq_rid[0] = 0; 821 if (method == CISS_TRANSPORT_METHOD_PERF) { 822 ciss_printf(sc, "PERFORMANT Transport\n"); 823 if ((ciss_force_interrupt != 1) && (ciss_setup_msix(sc) == 0)) { 824 intr = ciss_perf_msi_intr; 825 } else { 826 intr = ciss_perf_intr; 827 } 828 /* XXX The docs say that the 0x01 bit is only for SAS controllers. 829 * Unfortunately, there is no good way to know if this is a SAS 830 * controller. Hopefully enabling this bit universally will work OK. 831 * It seems to work fine for SA6i controllers. 832 */ 833 sc->ciss_interrupt_mask = CISS_TL_PERF_INTR_OPQ | CISS_TL_PERF_INTR_MSI; 834 835 } else { 836 ciss_printf(sc, "SIMPLE Transport\n"); 837 /* MSIX doesn't seem to work in SIMPLE mode, only enable if it forced */ 838 if (ciss_force_interrupt == 2) 839 /* If this fails, we automatically revert to INTx */ 840 ciss_setup_msix(sc); 841 sc->ciss_perf = NULL; 842 intr = ciss_intr; 843 sc->ciss_interrupt_mask = sqmask; 844 } 845 846 /* 847 * Turn off interrupts before we go routing anything. 848 */ 849 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 850 851 /* 852 * Allocate and set up our interrupt. 853 */ 854 if ((sc->ciss_irq_resource = 855 bus_alloc_resource_any(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid[0], 856 RF_ACTIVE | RF_SHAREABLE)) == NULL) { 857 ciss_printf(sc, "can't allocate interrupt\n"); 858 return(ENXIO); 859 } 860 861 if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource, 862 INTR_TYPE_CAM|INTR_MPSAFE, NULL, intr, sc, 863 &sc->ciss_intr)) { 864 ciss_printf(sc, "can't set up interrupt\n"); 865 return(ENXIO); 866 } 867 868 /* 869 * Allocate the parent bus DMA tag appropriate for our PCI 870 * interface. 871 * 872 * Note that "simple" adapters can only address within a 32-bit 873 * span. 874 */ 875 if (bus_dma_tag_create(bus_get_dma_tag(sc->ciss_dev),/* PCI parent */ 876 1, 0, /* alignment, boundary */ 877 BUS_SPACE_MAXADDR, /* lowaddr */ 878 BUS_SPACE_MAXADDR, /* highaddr */ 879 NULL, NULL, /* filter, filterarg */ 880 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 881 BUS_SPACE_UNRESTRICTED, /* nsegments */ 882 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 883 0, /* flags */ 884 NULL, NULL, /* lockfunc, lockarg */ 885 &sc->ciss_parent_dmat)) { 886 ciss_printf(sc, "can't allocate parent DMA tag\n"); 887 return(ENOMEM); 888 } 889 890 /* 891 * Create DMA tag for mapping buffers into adapter-addressable 892 * space. 893 */ 894 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 895 1, 0, /* alignment, boundary */ 896 BUS_SPACE_MAXADDR, /* lowaddr */ 897 BUS_SPACE_MAXADDR, /* highaddr */ 898 NULL, NULL, /* filter, filterarg */ 899 (CISS_MAX_SG_ELEMENTS - 1) * PAGE_SIZE, /* maxsize */ 900 CISS_MAX_SG_ELEMENTS, /* nsegments */ 901 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 902 BUS_DMA_ALLOCNOW, /* flags */ 903 busdma_lock_mutex, &sc->ciss_mtx, /* lockfunc, lockarg */ 904 &sc->ciss_buffer_dmat)) { 905 ciss_printf(sc, "can't allocate buffer DMA tag\n"); 906 return(ENOMEM); 907 } 908 return(0); 909 } 910 911 /************************************************************************ 912 * Setup MSI/MSIX operation (Performant only) 913 * Four interrupts are available, but we only use 1 right now. If MSI-X 914 * isn't avaialble, try using MSI instead. 915 */ 916 static int 917 ciss_setup_msix(struct ciss_softc *sc) 918 { 919 int val, i; 920 921 /* Weed out devices that don't actually support MSI */ 922 i = ciss_lookup(sc->ciss_dev); 923 if (ciss_vendor_data[i].flags & CISS_BOARD_NOMSI) 924 return (EINVAL); 925 926 /* 927 * Only need to use the minimum number of MSI vectors, as the driver 928 * doesn't support directed MSIX interrupts. 929 */ 930 val = pci_msix_count(sc->ciss_dev); 931 if (val < CISS_MSI_COUNT) { 932 val = pci_msi_count(sc->ciss_dev); 933 device_printf(sc->ciss_dev, "got %d MSI messages]\n", val); 934 if (val < CISS_MSI_COUNT) 935 return (EINVAL); 936 } 937 val = MIN(val, CISS_MSI_COUNT); 938 if (pci_alloc_msix(sc->ciss_dev, &val) != 0) { 939 if (pci_alloc_msi(sc->ciss_dev, &val) != 0) 940 return (EINVAL); 941 } 942 943 sc->ciss_msi = val; 944 if (bootverbose || ciss_verbose) 945 ciss_printf(sc, "Using %d MSIX interrupt%s\n", val, 946 (val != 1) ? "s" : ""); 947 948 for (i = 0; i < val; i++) 949 sc->ciss_irq_rid[i] = i + 1; 950 951 return (0); 952 953 } 954 955 /************************************************************************ 956 * Setup the Performant structures. 957 */ 958 static int 959 ciss_init_perf(struct ciss_softc *sc) 960 { 961 struct ciss_perf_config *pc = sc->ciss_perf; 962 int reply_size; 963 964 /* 965 * Create the DMA tag for the reply queue. 966 */ 967 reply_size = sizeof(uint64_t) * sc->ciss_max_requests; 968 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 969 1, 0, /* alignment, boundary */ 970 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 971 BUS_SPACE_MAXADDR, /* highaddr */ 972 NULL, NULL, /* filter, filterarg */ 973 reply_size, 1, /* maxsize, nsegments */ 974 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 975 0, /* flags */ 976 NULL, NULL, /* lockfunc, lockarg */ 977 &sc->ciss_reply_dmat)) { 978 ciss_printf(sc, "can't allocate reply DMA tag\n"); 979 return(ENOMEM); 980 } 981 /* 982 * Allocate memory and make it available for DMA. 983 */ 984 if (bus_dmamem_alloc(sc->ciss_reply_dmat, (void **)&sc->ciss_reply, 985 BUS_DMA_NOWAIT, &sc->ciss_reply_map)) { 986 ciss_printf(sc, "can't allocate reply memory\n"); 987 return(ENOMEM); 988 } 989 bus_dmamap_load(sc->ciss_reply_dmat, sc->ciss_reply_map, sc->ciss_reply, 990 reply_size, ciss_command_map_helper, &sc->ciss_reply_phys, 0); 991 bzero(sc->ciss_reply, reply_size); 992 993 sc->ciss_cycle = 0x1; 994 sc->ciss_rqidx = 0; 995 996 /* 997 * Preload the fetch table with common command sizes. This allows the 998 * hardware to not waste bus cycles for typical i/o commands, but also not 999 * tax the driver to be too exact in choosing sizes. The table is optimized 1000 * for page-aligned i/o's, but since most i/o comes from the various pagers, 1001 * it's a reasonable assumption to make. 1002 */ 1003 pc->fetch_count[CISS_SG_FETCH_NONE] = (sizeof(struct ciss_command) + 15) / 16; 1004 pc->fetch_count[CISS_SG_FETCH_1] = 1005 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 1 + 15) / 16; 1006 pc->fetch_count[CISS_SG_FETCH_2] = 1007 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 2 + 15) / 16; 1008 pc->fetch_count[CISS_SG_FETCH_4] = 1009 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 4 + 15) / 16; 1010 pc->fetch_count[CISS_SG_FETCH_8] = 1011 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 8 + 15) / 16; 1012 pc->fetch_count[CISS_SG_FETCH_16] = 1013 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 16 + 15) / 16; 1014 pc->fetch_count[CISS_SG_FETCH_32] = 1015 (sizeof(struct ciss_command) + sizeof(struct ciss_sg_entry) * 32 + 15) / 16; 1016 pc->fetch_count[CISS_SG_FETCH_MAX] = (CISS_COMMAND_ALLOC_SIZE + 15) / 16; 1017 1018 pc->rq_size = sc->ciss_max_requests; /* XXX less than the card supports? */ 1019 pc->rq_count = 1; /* XXX Hardcode for a single queue */ 1020 pc->rq_bank_hi = 0; 1021 pc->rq_bank_lo = 0; 1022 pc->rq[0].rq_addr_hi = 0x0; 1023 pc->rq[0].rq_addr_lo = sc->ciss_reply_phys; 1024 1025 return(0); 1026 } 1027 1028 /************************************************************************ 1029 * Wait for the adapter to come ready. 1030 */ 1031 static int 1032 ciss_wait_adapter(struct ciss_softc *sc) 1033 { 1034 int i; 1035 1036 debug_called(1); 1037 1038 /* 1039 * Wait for the adapter to come ready. 1040 */ 1041 if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) { 1042 ciss_printf(sc, "waiting for adapter to come ready...\n"); 1043 for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) { 1044 DELAY(1000000); /* one second */ 1045 if (i > 30) { 1046 ciss_printf(sc, "timed out waiting for adapter to come ready\n"); 1047 return(EIO); 1048 } 1049 } 1050 } 1051 return(0); 1052 } 1053 1054 /************************************************************************ 1055 * Flush the adapter cache. 1056 */ 1057 static int 1058 ciss_flush_adapter(struct ciss_softc *sc) 1059 { 1060 struct ciss_request *cr; 1061 struct ciss_bmic_flush_cache *cbfc; 1062 int error, command_status; 1063 1064 debug_called(1); 1065 1066 cr = NULL; 1067 cbfc = NULL; 1068 1069 /* 1070 * Build a BMIC request to flush the cache. We don't disable 1071 * it, as we may be going to do more I/O (eg. we are emulating 1072 * the Synchronise Cache command). 1073 */ 1074 if ((cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 1075 error = ENOMEM; 1076 goto out; 1077 } 1078 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE, 1079 (void **)&cbfc, sizeof(*cbfc))) != 0) 1080 goto out; 1081 1082 /* 1083 * Submit the request and wait for it to complete. 1084 */ 1085 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1086 ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error); 1087 goto out; 1088 } 1089 1090 /* 1091 * Check response. 1092 */ 1093 ciss_report_request(cr, &command_status, NULL); 1094 switch(command_status) { 1095 case CISS_CMD_STATUS_SUCCESS: 1096 break; 1097 default: 1098 ciss_printf(sc, "error flushing cache (%s)\n", 1099 ciss_name_command_status(command_status)); 1100 error = EIO; 1101 goto out; 1102 } 1103 1104 out: 1105 if (cbfc != NULL) 1106 free(cbfc, CISS_MALLOC_CLASS); 1107 if (cr != NULL) 1108 ciss_release_request(cr); 1109 return(error); 1110 } 1111 1112 static void 1113 ciss_soft_reset(struct ciss_softc *sc) 1114 { 1115 struct ciss_request *cr = NULL; 1116 struct ciss_command *cc; 1117 int i, error = 0; 1118 1119 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1120 /* only reset proxy controllers */ 1121 if (sc->ciss_controllers[i].physical.bus == 0) 1122 continue; 1123 1124 if ((error = ciss_get_request(sc, &cr)) != 0) 1125 break; 1126 1127 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_SOFT_RESET, 1128 NULL, 0)) != 0) 1129 break; 1130 1131 cc = cr->cr_cc; 1132 cc->header.address = sc->ciss_controllers[i]; 1133 1134 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) 1135 break; 1136 1137 ciss_release_request(cr); 1138 } 1139 1140 if (error) 1141 ciss_printf(sc, "error resetting controller (%d)\n", error); 1142 1143 if (cr != NULL) 1144 ciss_release_request(cr); 1145 } 1146 1147 /************************************************************************ 1148 * Allocate memory for the adapter command structures, initialise 1149 * the request structures. 1150 * 1151 * Note that the entire set of commands are allocated in a single 1152 * contiguous slab. 1153 */ 1154 static int 1155 ciss_init_requests(struct ciss_softc *sc) 1156 { 1157 struct ciss_request *cr; 1158 int i; 1159 1160 debug_called(1); 1161 1162 if (bootverbose || ciss_verbose) 1163 ciss_printf(sc, "using %d of %d available commands\n", 1164 sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands); 1165 1166 /* 1167 * Create the DMA tag for commands. 1168 */ 1169 if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */ 1170 32, 0, /* alignment, boundary */ 1171 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 1172 BUS_SPACE_MAXADDR, /* highaddr */ 1173 NULL, NULL, /* filter, filterarg */ 1174 CISS_COMMAND_ALLOC_SIZE * 1175 sc->ciss_max_requests, 1, /* maxsize, nsegments */ 1176 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 1177 0, /* flags */ 1178 NULL, NULL, /* lockfunc, lockarg */ 1179 &sc->ciss_command_dmat)) { 1180 ciss_printf(sc, "can't allocate command DMA tag\n"); 1181 return(ENOMEM); 1182 } 1183 /* 1184 * Allocate memory and make it available for DMA. 1185 */ 1186 if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command, 1187 BUS_DMA_NOWAIT, &sc->ciss_command_map)) { 1188 ciss_printf(sc, "can't allocate command memory\n"); 1189 return(ENOMEM); 1190 } 1191 bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map,sc->ciss_command, 1192 CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests, 1193 ciss_command_map_helper, &sc->ciss_command_phys, 0); 1194 bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests); 1195 1196 /* 1197 * Set up the request and command structures, push requests onto 1198 * the free queue. 1199 */ 1200 for (i = 1; i < sc->ciss_max_requests; i++) { 1201 cr = &sc->ciss_request[i]; 1202 cr->cr_sc = sc; 1203 cr->cr_tag = i; 1204 cr->cr_cc = (struct ciss_command *)((uintptr_t)sc->ciss_command + 1205 CISS_COMMAND_ALLOC_SIZE * i); 1206 cr->cr_ccphys = sc->ciss_command_phys + CISS_COMMAND_ALLOC_SIZE * i; 1207 bus_dmamap_create(sc->ciss_buffer_dmat, 0, &cr->cr_datamap); 1208 ciss_enqueue_free(cr); 1209 } 1210 return(0); 1211 } 1212 1213 static void 1214 ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1215 { 1216 uint32_t *addr; 1217 1218 addr = arg; 1219 *addr = segs[0].ds_addr; 1220 } 1221 1222 /************************************************************************ 1223 * Identify the adapter, print some information about it. 1224 */ 1225 static int 1226 ciss_identify_adapter(struct ciss_softc *sc) 1227 { 1228 struct ciss_request *cr; 1229 int error, command_status; 1230 1231 debug_called(1); 1232 1233 cr = NULL; 1234 1235 /* 1236 * Get a request, allocate storage for the adapter data. 1237 */ 1238 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR, 1239 (void **)&sc->ciss_id, 1240 sizeof(*sc->ciss_id))) != 0) 1241 goto out; 1242 1243 /* 1244 * Submit the request and wait for it to complete. 1245 */ 1246 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1247 ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error); 1248 goto out; 1249 } 1250 1251 /* 1252 * Check response. 1253 */ 1254 ciss_report_request(cr, &command_status, NULL); 1255 switch(command_status) { 1256 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1257 break; 1258 case CISS_CMD_STATUS_DATA_UNDERRUN: 1259 case CISS_CMD_STATUS_DATA_OVERRUN: 1260 ciss_printf(sc, "data over/underrun reading adapter information\n"); 1261 default: 1262 ciss_printf(sc, "error reading adapter information (%s)\n", 1263 ciss_name_command_status(command_status)); 1264 error = EIO; 1265 goto out; 1266 } 1267 1268 /* sanity-check reply */ 1269 if (!(sc->ciss_id->controller_flags & CONTROLLER_FLAGS_BIG_MAP_SUPPORT)) { 1270 ciss_printf(sc, "adapter does not support BIG_MAP\n"); 1271 error = ENXIO; 1272 goto out; 1273 } 1274 1275 #if 0 1276 /* XXX later revisions may not need this */ 1277 sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH; 1278 #endif 1279 1280 /* XXX only really required for old 5300 adapters? */ 1281 sc->ciss_flags |= CISS_FLAG_BMIC_ABORT; 1282 1283 /* 1284 * Earlier controller specs do not contain these config 1285 * entries, so assume that a 0 means its old and assign 1286 * these values to the defaults that were established 1287 * when this driver was developed for them 1288 */ 1289 if (sc->ciss_cfg->max_logical_supported == 0) 1290 sc->ciss_cfg->max_logical_supported = CISS_MAX_LOGICAL; 1291 if (sc->ciss_cfg->max_physical_supported == 0) 1292 sc->ciss_cfg->max_physical_supported = CISS_MAX_PHYSICAL; 1293 /* print information */ 1294 if (bootverbose || ciss_verbose) { 1295 ciss_printf(sc, " %d logical drive%s configured\n", 1296 sc->ciss_id->configured_logical_drives, 1297 (sc->ciss_id->configured_logical_drives == 1) ? "" : "s"); 1298 ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision); 1299 ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_chip_count); 1300 1301 if (ciss_verbose > 1) { 1302 ciss_printf(sc, " %d FC channels\n", sc->ciss_id->fibre_chip_count); 1303 ciss_printf(sc, " %d enclosures\n", sc->ciss_id->bEnclosureCount); 1304 ciss_printf(sc, " %d expanders\n", sc->ciss_id->bExpanderCount); 1305 ciss_printf(sc, " maximum blocks: %d\n", sc->ciss_id->maximum_blocks); 1306 ciss_printf(sc, " controller clock: %d\n", sc->ciss_id->controller_clock); 1307 ciss_printf(sc, " %d MB controller memory\n", sc->ciss_id->total_controller_mem_mb); 1308 } 1309 1310 ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature); 1311 ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence); 1312 ciss_printf(sc, " supported I/O methods 0x%b\n", 1313 sc->ciss_cfg->supported_methods, 1314 "\20\1READY\2simple\3performant\4MEMQ\n"); 1315 ciss_printf(sc, " active I/O method 0x%b\n", 1316 sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n"); 1317 ciss_printf(sc, " 4G page base 0x%08x\n", 1318 sc->ciss_cfg->command_physlimit); 1319 ciss_printf(sc, " interrupt coalesce delay %dus\n", 1320 sc->ciss_cfg->interrupt_coalesce_delay); 1321 ciss_printf(sc, " interrupt coalesce count %d\n", 1322 sc->ciss_cfg->interrupt_coalesce_count); 1323 ciss_printf(sc, " max outstanding commands %d\n", 1324 sc->ciss_cfg->max_outstanding_commands); 1325 ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types, 1326 "\20\1ultra2\2ultra3\10fibre1\11fibre2\n"); 1327 ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name); 1328 ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat); 1329 ciss_printf(sc, " max logical volumes: %d\n", sc->ciss_cfg->max_logical_supported); 1330 ciss_printf(sc, " max physical disks supported: %d\n", sc->ciss_cfg->max_physical_supported); 1331 ciss_printf(sc, " max physical disks per logical volume: %d\n", sc->ciss_cfg->max_physical_per_logical); 1332 ciss_printf(sc, " JBOD Support is %s\n", (sc->ciss_id->uiYetMoreControllerFlags & YMORE_CONTROLLER_FLAGS_JBOD_SUPPORTED) ? 1333 "Available" : "Unavailable"); 1334 ciss_printf(sc, " JBOD Mode is %s\n", (sc->ciss_id->PowerUPNvramFlags & PWR_UP_FLAG_JBOD_ENABLED) ? 1335 "Enabled" : "Disabled"); 1336 } 1337 1338 out: 1339 if (error) { 1340 if (sc->ciss_id != NULL) { 1341 free(sc->ciss_id, CISS_MALLOC_CLASS); 1342 sc->ciss_id = NULL; 1343 } 1344 } 1345 if (cr != NULL) 1346 ciss_release_request(cr); 1347 return(error); 1348 } 1349 1350 /************************************************************************ 1351 * Helper routine for generating a list of logical and physical luns. 1352 */ 1353 static struct ciss_lun_report * 1354 ciss_report_luns(struct ciss_softc *sc, int opcode, int nunits) 1355 { 1356 struct ciss_request *cr; 1357 struct ciss_command *cc; 1358 struct ciss_report_cdb *crc; 1359 struct ciss_lun_report *cll; 1360 int command_status; 1361 int report_size; 1362 int error = 0; 1363 1364 debug_called(1); 1365 1366 cr = NULL; 1367 cll = NULL; 1368 1369 /* 1370 * Get a request, allocate storage for the address list. 1371 */ 1372 if ((error = ciss_get_request(sc, &cr)) != 0) 1373 goto out; 1374 report_size = sizeof(*cll) + nunits * sizeof(union ciss_device_address); 1375 if ((cll = malloc(report_size, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 1376 ciss_printf(sc, "can't allocate memory for lun report\n"); 1377 error = ENOMEM; 1378 goto out; 1379 } 1380 1381 /* 1382 * Build the Report Logical/Physical LUNs command. 1383 */ 1384 cc = cr->cr_cc; 1385 cr->cr_data = cll; 1386 cr->cr_length = report_size; 1387 cr->cr_flags = CISS_REQ_DATAIN; 1388 1389 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 1390 cc->header.address.physical.bus = 0; 1391 cc->header.address.physical.target = 0; 1392 cc->cdb.cdb_length = sizeof(*crc); 1393 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1394 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1395 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1396 cc->cdb.timeout = 30; /* XXX better suggestions? */ 1397 1398 crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]); 1399 bzero(crc, sizeof(*crc)); 1400 crc->opcode = opcode; 1401 crc->length = htonl(report_size); /* big-endian field */ 1402 cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */ 1403 1404 /* 1405 * Submit the request and wait for it to complete. (timeout 1406 * here should be much greater than above) 1407 */ 1408 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1409 ciss_printf(sc, "error sending %d LUN command (%d)\n", opcode, error); 1410 goto out; 1411 } 1412 1413 /* 1414 * Check response. Note that data over/underrun is OK. 1415 */ 1416 ciss_report_request(cr, &command_status, NULL); 1417 switch(command_status) { 1418 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1419 case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */ 1420 break; 1421 case CISS_CMD_STATUS_DATA_OVERRUN: 1422 ciss_printf(sc, "WARNING: more units than driver limit (%d)\n", 1423 sc->ciss_cfg->max_logical_supported); 1424 break; 1425 default: 1426 ciss_printf(sc, "error detecting logical drive configuration (%s)\n", 1427 ciss_name_command_status(command_status)); 1428 error = EIO; 1429 goto out; 1430 } 1431 ciss_release_request(cr); 1432 cr = NULL; 1433 1434 out: 1435 if (cr != NULL) 1436 ciss_release_request(cr); 1437 if (error && cll != NULL) { 1438 free(cll, CISS_MALLOC_CLASS); 1439 cll = NULL; 1440 } 1441 return(cll); 1442 } 1443 1444 /************************************************************************ 1445 * Find logical drives on the adapter. 1446 */ 1447 static int 1448 ciss_init_logical(struct ciss_softc *sc) 1449 { 1450 struct ciss_lun_report *cll; 1451 int error = 0, i, j; 1452 int ndrives; 1453 1454 debug_called(1); 1455 1456 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 1457 sc->ciss_cfg->max_logical_supported); 1458 if (cll == NULL) { 1459 error = ENXIO; 1460 goto out; 1461 } 1462 1463 /* sanity-check reply */ 1464 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1465 if ((ndrives < 0) || (ndrives > sc->ciss_cfg->max_logical_supported)) { 1466 ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n", 1467 ndrives, sc->ciss_cfg->max_logical_supported); 1468 error = ENXIO; 1469 goto out; 1470 } 1471 1472 /* 1473 * Save logical drive information. 1474 */ 1475 if (bootverbose || ciss_verbose) { 1476 ciss_printf(sc, "%d logical drive%s\n", 1477 ndrives, (ndrives > 1 || ndrives == 0) ? "s" : ""); 1478 } 1479 1480 sc->ciss_logical = 1481 malloc(sc->ciss_max_logical_bus * sizeof(struct ciss_ldrive *), 1482 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1483 if (sc->ciss_logical == NULL) { 1484 error = ENXIO; 1485 goto out; 1486 } 1487 1488 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 1489 sc->ciss_logical[i] = 1490 malloc(sc->ciss_cfg->max_logical_supported * 1491 sizeof(struct ciss_ldrive), 1492 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1493 if (sc->ciss_logical[i] == NULL) { 1494 error = ENXIO; 1495 goto out; 1496 } 1497 1498 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) 1499 sc->ciss_logical[i][j].cl_status = CISS_LD_NONEXISTENT; 1500 } 1501 1502 for (i = 0; i < sc->ciss_cfg->max_logical_supported; i++) { 1503 if (i < ndrives) { 1504 struct ciss_ldrive *ld; 1505 int bus, target; 1506 1507 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 1508 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 1509 ld = &sc->ciss_logical[bus][target]; 1510 1511 ld->cl_address = cll->lun[i]; 1512 ld->cl_controller = &sc->ciss_controllers[bus]; 1513 if (ciss_identify_logical(sc, ld) != 0) 1514 continue; 1515 /* 1516 * If the drive has had media exchanged, we should bring it online. 1517 */ 1518 if (ld->cl_lstatus->media_exchanged) 1519 ciss_accept_media(sc, ld); 1520 } 1521 } 1522 1523 out: 1524 if (cll != NULL) 1525 free(cll, CISS_MALLOC_CLASS); 1526 return(error); 1527 } 1528 1529 static int 1530 ciss_init_physical(struct ciss_softc *sc) 1531 { 1532 struct ciss_lun_report *cll; 1533 int error = 0, i; 1534 int nphys; 1535 int bus; 1536 1537 debug_called(1); 1538 1539 bus = 0; 1540 1541 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 1542 sc->ciss_cfg->max_physical_supported); 1543 if (cll == NULL) { 1544 error = ENXIO; 1545 goto out; 1546 } 1547 1548 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1549 1550 if (bootverbose || ciss_verbose) { 1551 ciss_printf(sc, "%d physical device%s\n", 1552 nphys, (nphys > 1 || nphys == 0) ? "s" : ""); 1553 } 1554 1555 /* Per-controller highest target number seen */ 1556 sc->ciss_max_physical_target = 0; 1557 1558 /* 1559 * Figure out the bus mapping. 1560 * Logical buses include both the local logical bus for local arrays and 1561 * proxy buses for remote arrays. Physical buses are numbered by the 1562 * controller and represent physical buses that hold physical devices. 1563 * We shift these bus numbers so that everything fits into a single flat 1564 * numbering space for CAM. Logical buses occupy the first 32 CAM bus 1565 * numbers, and the physical bus numbers are shifted to be above that. 1566 * This results in the various driver arrays being indexed as follows: 1567 * 1568 * ciss_controllers[] - indexed by logical bus 1569 * ciss_cam_sim[] - indexed by both logical and physical, with physical 1570 * being shifted by 32. 1571 * ciss_logical[][] - indexed by logical bus 1572 * ciss_physical[][] - indexed by physical bus 1573 * 1574 * XXX This is getting more and more hackish. CISS really doesn't play 1575 * well with a standard SCSI model; devices are addressed via magic 1576 * cookies, not via b/t/l addresses. Since there is no way to store 1577 * the cookie in the CAM device object, we have to keep these lookup 1578 * tables handy so that the devices can be found quickly at the cost 1579 * of wasting memory and having a convoluted lookup scheme. This 1580 * driver should probably be converted to block interface. 1581 */ 1582 /* 1583 * If the L2 and L3 SCSI addresses are 0, this signifies a proxy 1584 * controller. A proxy controller is another physical controller 1585 * behind the primary PCI controller. We need to know about this 1586 * so that BMIC commands can be properly targeted. There can be 1587 * proxy controllers attached to a single PCI controller, so 1588 * find the highest numbered one so the array can be properly 1589 * sized. 1590 */ 1591 sc->ciss_max_logical_bus = 1; 1592 for (i = 0; i < nphys; i++) { 1593 if (cll->lun[i].physical.extra_address == 0) { 1594 bus = cll->lun[i].physical.bus; 1595 sc->ciss_max_logical_bus = max(sc->ciss_max_logical_bus, bus) + 1; 1596 } else { 1597 bus = CISS_EXTRA_BUS2(cll->lun[i].physical.extra_address); 1598 sc->ciss_max_physical_bus = max(sc->ciss_max_physical_bus, bus); 1599 } 1600 } 1601 1602 sc->ciss_controllers = 1603 malloc(sc->ciss_max_logical_bus * sizeof (union ciss_device_address), 1604 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1605 1606 if (sc->ciss_controllers == NULL) { 1607 ciss_printf(sc, "Could not allocate memory for controller map\n"); 1608 error = ENOMEM; 1609 goto out; 1610 } 1611 1612 /* setup a map of controller addresses */ 1613 for (i = 0; i < nphys; i++) { 1614 if (cll->lun[i].physical.extra_address == 0) { 1615 sc->ciss_controllers[cll->lun[i].physical.bus] = cll->lun[i]; 1616 } 1617 } 1618 1619 sc->ciss_physical = 1620 malloc(sc->ciss_max_physical_bus * sizeof(struct ciss_pdrive *), 1621 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1622 if (sc->ciss_physical == NULL) { 1623 ciss_printf(sc, "Could not allocate memory for physical device map\n"); 1624 error = ENOMEM; 1625 goto out; 1626 } 1627 1628 for (i = 0; i < sc->ciss_max_physical_bus; i++) { 1629 sc->ciss_physical[i] = 1630 malloc(sizeof(struct ciss_pdrive) * CISS_MAX_PHYSTGT, 1631 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 1632 if (sc->ciss_physical[i] == NULL) { 1633 ciss_printf(sc, "Could not allocate memory for target map\n"); 1634 error = ENOMEM; 1635 goto out; 1636 } 1637 } 1638 1639 ciss_filter_physical(sc, cll); 1640 if (bootverbose || ciss_verbose) 1641 ciss_printf(sc, "max physical target id: %d\n", sc->ciss_max_physical_target); 1642 1643 out: 1644 if (cll != NULL) 1645 free(cll, CISS_MALLOC_CLASS); 1646 1647 return(error); 1648 } 1649 1650 static int 1651 ciss_filter_physical(struct ciss_softc *sc, struct ciss_lun_report *cll) 1652 { 1653 u_int32_t ea; 1654 int i, nphys; 1655 int bus, target; 1656 1657 nphys = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 1658 for (i = 0; i < nphys; i++) { 1659 if (cll->lun[i].physical.extra_address == 0) 1660 continue; 1661 1662 /* 1663 * Filter out devices that we don't want. Level 3 LUNs could 1664 * probably be supported, but the docs don't give enough of a 1665 * hint to know how. 1666 * 1667 * The mode field of the physical address is likely set to have 1668 * hard disks masked out. Honor it unless the user has overridden 1669 * us with the tunable. We also munge the inquiry data for these 1670 * disks so that they only show up as passthrough devices. Keeping 1671 * them visible in this fashion is useful for doing things like 1672 * flashing firmware. 1673 */ 1674 ea = cll->lun[i].physical.extra_address; 1675 if ((CISS_EXTRA_BUS3(ea) != 0) || (CISS_EXTRA_TARGET3(ea) != 0) || 1676 (CISS_EXTRA_MODE2(ea) == 0x3)) 1677 continue; 1678 if ((ciss_expose_hidden_physical == 0) && 1679 (cll->lun[i].physical.mode == CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL)) 1680 continue; 1681 1682 /* 1683 * Note: CISS firmware numbers physical busses starting at '1', not 1684 * '0'. This numbering is internal to the firmware and is only 1685 * used as a hint here. 1686 */ 1687 bus = CISS_EXTRA_BUS2(ea) - 1; 1688 target = CISS_EXTRA_TARGET2(ea); 1689 sc->ciss_physical[bus][target].cp_address = cll->lun[i]; 1690 sc->ciss_physical[bus][target].cp_online = 1; 1691 1692 if ((target > sc->ciss_max_physical_target) && 1693 (cll->lun[i].physical.mode != CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL)) 1694 sc->ciss_max_physical_target = target; 1695 } 1696 1697 return (0); 1698 } 1699 1700 static int 1701 ciss_inquiry_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1702 { 1703 struct ciss_request *cr; 1704 struct ciss_command *cc; 1705 struct scsi_inquiry *inq; 1706 int error; 1707 int command_status; 1708 1709 cr = NULL; 1710 1711 bzero(&ld->cl_geometry, sizeof(ld->cl_geometry)); 1712 1713 if ((error = ciss_get_request(sc, &cr)) != 0) 1714 goto out; 1715 1716 cc = cr->cr_cc; 1717 cr->cr_data = &ld->cl_geometry; 1718 cr->cr_length = sizeof(ld->cl_geometry); 1719 cr->cr_flags = CISS_REQ_DATAIN; 1720 1721 cc->header.address = ld->cl_address; 1722 cc->cdb.cdb_length = 6; 1723 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 1724 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 1725 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 1726 cc->cdb.timeout = 30; 1727 1728 inq = (struct scsi_inquiry *)&(cc->cdb.cdb[0]); 1729 inq->opcode = INQUIRY; 1730 inq->byte2 = SI_EVPD; 1731 inq->page_code = CISS_VPD_LOGICAL_DRIVE_GEOMETRY; 1732 scsi_ulto2b(sizeof(ld->cl_geometry), inq->length); 1733 1734 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1735 ciss_printf(sc, "error getting geometry (%d)\n", error); 1736 goto out; 1737 } 1738 1739 ciss_report_request(cr, &command_status, NULL); 1740 switch(command_status) { 1741 case CISS_CMD_STATUS_SUCCESS: 1742 case CISS_CMD_STATUS_DATA_UNDERRUN: 1743 break; 1744 case CISS_CMD_STATUS_DATA_OVERRUN: 1745 ciss_printf(sc, "WARNING: Data overrun\n"); 1746 break; 1747 default: 1748 ciss_printf(sc, "Error detecting logical drive geometry (%s)\n", 1749 ciss_name_command_status(command_status)); 1750 break; 1751 } 1752 1753 out: 1754 if (cr != NULL) 1755 ciss_release_request(cr); 1756 return(error); 1757 } 1758 /************************************************************************ 1759 * Identify a logical drive, initialise state related to it. 1760 */ 1761 static int 1762 ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld) 1763 { 1764 struct ciss_request *cr; 1765 struct ciss_command *cc; 1766 struct ciss_bmic_cdb *cbc; 1767 int error, command_status; 1768 1769 debug_called(1); 1770 1771 cr = NULL; 1772 1773 /* 1774 * Build a BMIC request to fetch the drive ID. 1775 */ 1776 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE, 1777 (void **)&ld->cl_ldrive, 1778 sizeof(*ld->cl_ldrive))) != 0) 1779 goto out; 1780 cc = cr->cr_cc; 1781 cc->header.address = *ld->cl_controller; /* target controller */ 1782 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1783 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1784 1785 /* 1786 * Submit the request and wait for it to complete. 1787 */ 1788 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1789 ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error); 1790 goto out; 1791 } 1792 1793 /* 1794 * Check response. 1795 */ 1796 ciss_report_request(cr, &command_status, NULL); 1797 switch(command_status) { 1798 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1799 break; 1800 case CISS_CMD_STATUS_DATA_UNDERRUN: 1801 case CISS_CMD_STATUS_DATA_OVERRUN: 1802 ciss_printf(sc, "data over/underrun reading logical drive ID\n"); 1803 default: 1804 ciss_printf(sc, "error reading logical drive ID (%s)\n", 1805 ciss_name_command_status(command_status)); 1806 error = EIO; 1807 goto out; 1808 } 1809 ciss_release_request(cr); 1810 cr = NULL; 1811 1812 /* 1813 * Build a CISS BMIC command to get the logical drive status. 1814 */ 1815 if ((error = ciss_get_ldrive_status(sc, ld)) != 0) 1816 goto out; 1817 1818 /* 1819 * Get the logical drive geometry. 1820 */ 1821 if ((error = ciss_inquiry_logical(sc, ld)) != 0) 1822 goto out; 1823 1824 /* 1825 * Print the drive's basic characteristics. 1826 */ 1827 if (bootverbose || ciss_verbose) { 1828 ciss_printf(sc, "logical drive (b%dt%d): %s, %dMB ", 1829 CISS_LUN_TO_BUS(ld->cl_address.logical.lun), 1830 CISS_LUN_TO_TARGET(ld->cl_address.logical.lun), 1831 ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance), 1832 ((ld->cl_ldrive->blocks_available / (1024 * 1024)) * 1833 ld->cl_ldrive->block_size)); 1834 1835 ciss_print_ldrive(sc, ld); 1836 } 1837 out: 1838 if (error != 0) { 1839 /* make the drive not-exist */ 1840 ld->cl_status = CISS_LD_NONEXISTENT; 1841 if (ld->cl_ldrive != NULL) { 1842 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 1843 ld->cl_ldrive = NULL; 1844 } 1845 if (ld->cl_lstatus != NULL) { 1846 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 1847 ld->cl_lstatus = NULL; 1848 } 1849 } 1850 if (cr != NULL) 1851 ciss_release_request(cr); 1852 1853 return(error); 1854 } 1855 1856 /************************************************************************ 1857 * Get status for a logical drive. 1858 * 1859 * XXX should we also do this in response to Test Unit Ready? 1860 */ 1861 static int 1862 ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld) 1863 { 1864 struct ciss_request *cr; 1865 struct ciss_command *cc; 1866 struct ciss_bmic_cdb *cbc; 1867 int error, command_status; 1868 1869 /* 1870 * Build a CISS BMIC command to get the logical drive status. 1871 */ 1872 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS, 1873 (void **)&ld->cl_lstatus, 1874 sizeof(*ld->cl_lstatus))) != 0) 1875 goto out; 1876 cc = cr->cr_cc; 1877 cc->header.address = *ld->cl_controller; /* target controller */ 1878 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1879 cbc->log_drive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1880 1881 /* 1882 * Submit the request and wait for it to complete. 1883 */ 1884 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1885 ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error); 1886 goto out; 1887 } 1888 1889 /* 1890 * Check response. 1891 */ 1892 ciss_report_request(cr, &command_status, NULL); 1893 switch(command_status) { 1894 case CISS_CMD_STATUS_SUCCESS: /* buffer right size */ 1895 break; 1896 case CISS_CMD_STATUS_DATA_UNDERRUN: 1897 case CISS_CMD_STATUS_DATA_OVERRUN: 1898 ciss_printf(sc, "data over/underrun reading logical drive status\n"); 1899 default: 1900 ciss_printf(sc, "error reading logical drive status (%s)\n", 1901 ciss_name_command_status(command_status)); 1902 error = EIO; 1903 goto out; 1904 } 1905 1906 /* 1907 * Set the drive's summary status based on the returned status. 1908 * 1909 * XXX testing shows that a failed JBOD drive comes back at next 1910 * boot in "queued for expansion" mode. WTF? 1911 */ 1912 ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status); 1913 1914 out: 1915 if (cr != NULL) 1916 ciss_release_request(cr); 1917 return(error); 1918 } 1919 1920 /************************************************************************ 1921 * Notify the adapter of a config update. 1922 */ 1923 static int 1924 ciss_update_config(struct ciss_softc *sc) 1925 { 1926 int i; 1927 1928 debug_called(1); 1929 1930 CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE); 1931 for (i = 0; i < 1000; i++) { 1932 if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) & 1933 CISS_TL_SIMPLE_IDBR_CFG_TABLE)) { 1934 return(0); 1935 } 1936 DELAY(1000); 1937 } 1938 return(1); 1939 } 1940 1941 /************************************************************************ 1942 * Accept new media into a logical drive. 1943 * 1944 * XXX The drive has previously been offline; it would be good if we 1945 * could make sure it's not open right now. 1946 */ 1947 static int 1948 ciss_accept_media(struct ciss_softc *sc, struct ciss_ldrive *ld) 1949 { 1950 struct ciss_request *cr; 1951 struct ciss_command *cc; 1952 struct ciss_bmic_cdb *cbc; 1953 int command_status; 1954 int error = 0, ldrive; 1955 1956 ldrive = CISS_LUN_TO_TARGET(ld->cl_address.logical.lun); 1957 1958 debug(0, "bringing logical drive %d back online", ldrive); 1959 1960 /* 1961 * Build a CISS BMIC command to bring the drive back online. 1962 */ 1963 if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA, 1964 NULL, 0)) != 0) 1965 goto out; 1966 cc = cr->cr_cc; 1967 cc->header.address = *ld->cl_controller; /* target controller */ 1968 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 1969 cbc->log_drive = ldrive; 1970 1971 /* 1972 * Submit the request and wait for it to complete. 1973 */ 1974 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 1975 ciss_printf(sc, "error sending BMIC ACCEPT MEDIA command (%d)\n", error); 1976 goto out; 1977 } 1978 1979 /* 1980 * Check response. 1981 */ 1982 ciss_report_request(cr, &command_status, NULL); 1983 switch(command_status) { 1984 case CISS_CMD_STATUS_SUCCESS: /* all OK */ 1985 /* we should get a logical drive status changed event here */ 1986 break; 1987 default: 1988 ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n", 1989 ciss_name_command_status(command_status)); 1990 break; 1991 } 1992 1993 out: 1994 if (cr != NULL) 1995 ciss_release_request(cr); 1996 return(error); 1997 } 1998 1999 /************************************************************************ 2000 * Release adapter resources. 2001 */ 2002 static void 2003 ciss_free(struct ciss_softc *sc) 2004 { 2005 struct ciss_request *cr; 2006 int i, j; 2007 2008 debug_called(1); 2009 2010 /* we're going away */ 2011 sc->ciss_flags |= CISS_FLAG_ABORTING; 2012 2013 /* terminate the periodic heartbeat routine */ 2014 callout_stop(&sc->ciss_periodic); 2015 2016 /* cancel the Event Notify chain */ 2017 ciss_notify_abort(sc); 2018 2019 ciss_kill_notify_thread(sc); 2020 2021 /* disconnect from CAM */ 2022 if (sc->ciss_cam_sim) { 2023 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 2024 if (sc->ciss_cam_sim[i]) { 2025 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 2026 cam_sim_free(sc->ciss_cam_sim[i], 0); 2027 } 2028 } 2029 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2030 CISS_PHYSICAL_BASE; i++) { 2031 if (sc->ciss_cam_sim[i]) { 2032 xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim[i])); 2033 cam_sim_free(sc->ciss_cam_sim[i], 0); 2034 } 2035 } 2036 free(sc->ciss_cam_sim, CISS_MALLOC_CLASS); 2037 } 2038 if (sc->ciss_cam_devq) 2039 cam_simq_free(sc->ciss_cam_devq); 2040 2041 /* remove the control device */ 2042 mtx_unlock(&sc->ciss_mtx); 2043 if (sc->ciss_dev_t != NULL) 2044 destroy_dev(sc->ciss_dev_t); 2045 2046 /* Final cleanup of the callout. */ 2047 callout_drain(&sc->ciss_periodic); 2048 mtx_destroy(&sc->ciss_mtx); 2049 2050 /* free the controller data */ 2051 if (sc->ciss_id != NULL) 2052 free(sc->ciss_id, CISS_MALLOC_CLASS); 2053 2054 /* release I/O resources */ 2055 if (sc->ciss_regs_resource != NULL) 2056 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 2057 sc->ciss_regs_rid, sc->ciss_regs_resource); 2058 if (sc->ciss_cfg_resource != NULL) 2059 bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY, 2060 sc->ciss_cfg_rid, sc->ciss_cfg_resource); 2061 if (sc->ciss_intr != NULL) 2062 bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr); 2063 if (sc->ciss_irq_resource != NULL) 2064 bus_release_resource(sc->ciss_dev, SYS_RES_IRQ, 2065 sc->ciss_irq_rid[0], sc->ciss_irq_resource); 2066 if (sc->ciss_msi) 2067 pci_release_msi(sc->ciss_dev); 2068 2069 while ((cr = ciss_dequeue_free(sc)) != NULL) 2070 bus_dmamap_destroy(sc->ciss_buffer_dmat, cr->cr_datamap); 2071 if (sc->ciss_buffer_dmat) 2072 bus_dma_tag_destroy(sc->ciss_buffer_dmat); 2073 2074 /* destroy command memory and DMA tag */ 2075 if (sc->ciss_command != NULL) { 2076 bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map); 2077 bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map); 2078 } 2079 if (sc->ciss_command_dmat) 2080 bus_dma_tag_destroy(sc->ciss_command_dmat); 2081 2082 if (sc->ciss_reply) { 2083 bus_dmamap_unload(sc->ciss_reply_dmat, sc->ciss_reply_map); 2084 bus_dmamem_free(sc->ciss_reply_dmat, sc->ciss_reply, sc->ciss_reply_map); 2085 } 2086 if (sc->ciss_reply_dmat) 2087 bus_dma_tag_destroy(sc->ciss_reply_dmat); 2088 2089 /* destroy DMA tags */ 2090 if (sc->ciss_parent_dmat) 2091 bus_dma_tag_destroy(sc->ciss_parent_dmat); 2092 if (sc->ciss_logical) { 2093 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 2094 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) { 2095 if (sc->ciss_logical[i][j].cl_ldrive) 2096 free(sc->ciss_logical[i][j].cl_ldrive, CISS_MALLOC_CLASS); 2097 if (sc->ciss_logical[i][j].cl_lstatus) 2098 free(sc->ciss_logical[i][j].cl_lstatus, CISS_MALLOC_CLASS); 2099 } 2100 free(sc->ciss_logical[i], CISS_MALLOC_CLASS); 2101 } 2102 free(sc->ciss_logical, CISS_MALLOC_CLASS); 2103 } 2104 2105 if (sc->ciss_physical) { 2106 for (i = 0; i < sc->ciss_max_physical_bus; i++) 2107 free(sc->ciss_physical[i], CISS_MALLOC_CLASS); 2108 free(sc->ciss_physical, CISS_MALLOC_CLASS); 2109 } 2110 2111 if (sc->ciss_controllers) 2112 free(sc->ciss_controllers, CISS_MALLOC_CLASS); 2113 2114 } 2115 2116 /************************************************************************ 2117 * Give a command to the adapter. 2118 * 2119 * Note that this uses the simple transport layer directly. If we 2120 * want to add support for other layers, we'll need a switch of some 2121 * sort. 2122 * 2123 * Note that the simple transport layer has no way of refusing a 2124 * command; we only have as many request structures as the adapter 2125 * supports commands, so we don't have to check (this presumes that 2126 * the adapter can handle commands as fast as we throw them at it). 2127 */ 2128 static int 2129 ciss_start(struct ciss_request *cr) 2130 { 2131 int error; 2132 2133 debug(2, "post command %d tag %d ", cr->cr_tag, cr->cr_cc->header.host_tag); 2134 2135 /* 2136 * Map the request's data. 2137 */ 2138 if ((error = ciss_map_request(cr))) 2139 return(error); 2140 2141 #if 0 2142 ciss_print_request(cr); 2143 #endif 2144 2145 return(0); 2146 } 2147 2148 /************************************************************************ 2149 * Fetch completed request(s) from the adapter, queue them for 2150 * completion handling. 2151 * 2152 * Note that this uses the simple transport layer directly. If we 2153 * want to add support for other layers, we'll need a switch of some 2154 * sort. 2155 * 2156 * Note that the simple transport mechanism does not require any 2157 * reentrancy protection; the OPQ read is atomic. If there is a 2158 * chance of a race with something else that might move the request 2159 * off the busy list, then we will have to lock against that 2160 * (eg. timeouts, etc.) 2161 */ 2162 static void 2163 ciss_done(struct ciss_softc *sc, cr_qhead_t *qh) 2164 { 2165 struct ciss_request *cr; 2166 struct ciss_command *cc; 2167 u_int32_t tag, index; 2168 2169 debug_called(3); 2170 2171 /* 2172 * Loop quickly taking requests from the adapter and moving them 2173 * to the completed queue. 2174 */ 2175 for (;;) { 2176 tag = CISS_TL_SIMPLE_FETCH_CMD(sc); 2177 if (tag == CISS_TL_SIMPLE_OPQ_EMPTY) 2178 break; 2179 index = tag >> 2; 2180 debug(2, "completed command %d%s", index, 2181 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2182 if (index >= sc->ciss_max_requests) { 2183 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2184 continue; 2185 } 2186 cr = &(sc->ciss_request[index]); 2187 cc = cr->cr_cc; 2188 cc->header.host_tag = tag; /* not updated by adapter */ 2189 ciss_enqueue_complete(cr, qh); 2190 } 2191 2192 } 2193 2194 static void 2195 ciss_perf_done(struct ciss_softc *sc, cr_qhead_t *qh) 2196 { 2197 struct ciss_request *cr; 2198 struct ciss_command *cc; 2199 u_int32_t tag, index; 2200 2201 debug_called(3); 2202 2203 /* 2204 * Loop quickly taking requests from the adapter and moving them 2205 * to the completed queue. 2206 */ 2207 for (;;) { 2208 tag = sc->ciss_reply[sc->ciss_rqidx]; 2209 if ((tag & CISS_CYCLE_MASK) != sc->ciss_cycle) 2210 break; 2211 index = tag >> 2; 2212 debug(2, "completed command %d%s\n", index, 2213 (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : ""); 2214 if (index < sc->ciss_max_requests) { 2215 cr = &(sc->ciss_request[index]); 2216 cc = cr->cr_cc; 2217 cc->header.host_tag = tag; /* not updated by adapter */ 2218 ciss_enqueue_complete(cr, qh); 2219 } else { 2220 ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag); 2221 } 2222 if (++sc->ciss_rqidx == sc->ciss_max_requests) { 2223 sc->ciss_rqidx = 0; 2224 sc->ciss_cycle ^= 1; 2225 } 2226 } 2227 2228 } 2229 2230 /************************************************************************ 2231 * Take an interrupt from the adapter. 2232 */ 2233 static void 2234 ciss_intr(void *arg) 2235 { 2236 cr_qhead_t qh; 2237 struct ciss_softc *sc = (struct ciss_softc *)arg; 2238 2239 /* 2240 * The only interrupt we recognise indicates that there are 2241 * entries in the outbound post queue. 2242 */ 2243 STAILQ_INIT(&qh); 2244 ciss_done(sc, &qh); 2245 mtx_lock(&sc->ciss_mtx); 2246 ciss_complete(sc, &qh); 2247 mtx_unlock(&sc->ciss_mtx); 2248 } 2249 2250 static void 2251 ciss_perf_intr(void *arg) 2252 { 2253 struct ciss_softc *sc = (struct ciss_softc *)arg; 2254 2255 /* Clear the interrupt and flush the bridges. Docs say that the flush 2256 * needs to be done twice, which doesn't seem right. 2257 */ 2258 CISS_TL_PERF_CLEAR_INT(sc); 2259 CISS_TL_PERF_FLUSH_INT(sc); 2260 2261 ciss_perf_msi_intr(sc); 2262 } 2263 2264 static void 2265 ciss_perf_msi_intr(void *arg) 2266 { 2267 cr_qhead_t qh; 2268 struct ciss_softc *sc = (struct ciss_softc *)arg; 2269 2270 STAILQ_INIT(&qh); 2271 ciss_perf_done(sc, &qh); 2272 mtx_lock(&sc->ciss_mtx); 2273 ciss_complete(sc, &qh); 2274 mtx_unlock(&sc->ciss_mtx); 2275 } 2276 2277 /************************************************************************ 2278 * Process completed requests. 2279 * 2280 * Requests can be completed in three fashions: 2281 * 2282 * - by invoking a callback function (cr_complete is non-null) 2283 * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set) 2284 * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context 2285 */ 2286 static void 2287 ciss_complete(struct ciss_softc *sc, cr_qhead_t *qh) 2288 { 2289 struct ciss_request *cr; 2290 2291 debug_called(2); 2292 2293 /* 2294 * Loop taking requests off the completed queue and performing 2295 * completion processing on them. 2296 */ 2297 for (;;) { 2298 if ((cr = ciss_dequeue_complete(sc, qh)) == NULL) 2299 break; 2300 ciss_unmap_request(cr); 2301 2302 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 2303 ciss_printf(sc, "WARNING: completing non-busy request\n"); 2304 cr->cr_flags &= ~CISS_REQ_BUSY; 2305 2306 /* 2307 * If the request has a callback, invoke it. 2308 */ 2309 if (cr->cr_complete != NULL) { 2310 cr->cr_complete(cr); 2311 continue; 2312 } 2313 2314 /* 2315 * If someone is sleeping on this request, wake them up. 2316 */ 2317 if (cr->cr_flags & CISS_REQ_SLEEP) { 2318 cr->cr_flags &= ~CISS_REQ_SLEEP; 2319 wakeup(cr); 2320 continue; 2321 } 2322 2323 /* 2324 * If someone is polling this request for completion, signal. 2325 */ 2326 if (cr->cr_flags & CISS_REQ_POLL) { 2327 cr->cr_flags &= ~CISS_REQ_POLL; 2328 continue; 2329 } 2330 2331 /* 2332 * Give up and throw the request back on the free queue. This 2333 * should never happen; resources will probably be lost. 2334 */ 2335 ciss_printf(sc, "WARNING: completed command with no submitter\n"); 2336 ciss_enqueue_free(cr); 2337 } 2338 } 2339 2340 /************************************************************************ 2341 * Report on the completion status of a request, and pass back SCSI 2342 * and command status values. 2343 */ 2344 static int 2345 _ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status, const char *func) 2346 { 2347 struct ciss_command *cc; 2348 struct ciss_error_info *ce; 2349 2350 debug_called(2); 2351 2352 cc = cr->cr_cc; 2353 ce = (struct ciss_error_info *)&(cc->sg[0]); 2354 2355 /* 2356 * We don't consider data under/overrun an error for the Report 2357 * Logical/Physical LUNs, INQUIRY & RECEIVE_DIAGNOSTIC commands. 2358 */ 2359 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) && 2360 ((ce->command_status == CISS_CMD_STATUS_DATA_OVERRUN) || 2361 (ce->command_status == CISS_CMD_STATUS_DATA_UNDERRUN)) && 2362 ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) || 2363 (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS) || 2364 (cc->cdb.cdb[0] == RECEIVE_DIAGNOSTIC) || 2365 (cc->cdb.cdb[0] == INQUIRY))) { 2366 cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR; 2367 debug(2, "ignoring irrelevant under/overrun error"); 2368 } 2369 2370 /* 2371 * Check the command's error bit, if clear, there's no status and 2372 * everything is OK. 2373 */ 2374 if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) { 2375 if (scsi_status != NULL) 2376 *scsi_status = SCSI_STATUS_OK; 2377 if (command_status != NULL) 2378 *command_status = CISS_CMD_STATUS_SUCCESS; 2379 return(0); 2380 } else { 2381 if (command_status != NULL) 2382 *command_status = ce->command_status; 2383 if (scsi_status != NULL) { 2384 if (ce->command_status == CISS_CMD_STATUS_DATA_UNDERRUN) { 2385 *scsi_status = SCSI_STATUS_OK; 2386 } else if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) { 2387 *scsi_status = ce->scsi_status; 2388 } else { 2389 *scsi_status = -1; 2390 } 2391 } 2392 if ((bootverbose || ciss_verbose > 3 || (ciss_verbose > 2 && ce->scsi_status != 0)) && 2393 (ce->command_status != CISS_CMD_STATUS_DATA_UNDERRUN)) { 2394 ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x (opcode 0x%02x)\n", 2395 ce->command_status, ciss_name_command_status(ce->command_status), 2396 ce->scsi_status, 2397 cc->cdb.cdb[0]); 2398 } 2399 if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) { 2400 ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x, function %s\n", 2401 ce->additional_error_info.invalid_command.offense_size, 2402 ce->additional_error_info.invalid_command.offense_offset, 2403 ce->additional_error_info.invalid_command.offense_value, 2404 func); 2405 } 2406 } 2407 #if 0 2408 ciss_print_request(cr); 2409 #endif 2410 return(1); 2411 } 2412 2413 /************************************************************************ 2414 * Issue a request and don't return until it's completed. 2415 * 2416 * Depending on adapter status, we may poll or sleep waiting for 2417 * completion. 2418 */ 2419 static int 2420 ciss_synch_request(struct ciss_request *cr, int timeout) 2421 { 2422 if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) { 2423 return(ciss_wait_request(cr, timeout)); 2424 } else { 2425 return(ciss_poll_request(cr, timeout)); 2426 } 2427 } 2428 2429 /************************************************************************ 2430 * Issue a request and poll for completion. 2431 * 2432 * Timeout in milliseconds. 2433 */ 2434 static int 2435 ciss_poll_request(struct ciss_request *cr, int timeout) 2436 { 2437 cr_qhead_t qh; 2438 struct ciss_softc *sc; 2439 int error; 2440 2441 debug_called(2); 2442 2443 STAILQ_INIT(&qh); 2444 sc = cr->cr_sc; 2445 cr->cr_flags |= CISS_REQ_POLL; 2446 if ((error = ciss_start(cr)) != 0) 2447 return(error); 2448 2449 do { 2450 if (sc->ciss_perf) 2451 ciss_perf_done(sc, &qh); 2452 else 2453 ciss_done(sc, &qh); 2454 ciss_complete(sc, &qh); 2455 if (!(cr->cr_flags & CISS_REQ_POLL)) 2456 return(0); 2457 DELAY(1000); 2458 } while (timeout-- >= 0); 2459 return(EWOULDBLOCK); 2460 } 2461 2462 /************************************************************************ 2463 * Issue a request and sleep waiting for completion. 2464 * 2465 * Timeout in milliseconds. Note that a spurious wakeup will reset 2466 * the timeout. 2467 */ 2468 static int 2469 ciss_wait_request(struct ciss_request *cr, int timeout) 2470 { 2471 int error; 2472 2473 debug_called(2); 2474 2475 cr->cr_flags |= CISS_REQ_SLEEP; 2476 if ((error = ciss_start(cr)) != 0) 2477 return(error); 2478 2479 while ((cr->cr_flags & CISS_REQ_SLEEP) && (error != EWOULDBLOCK)) { 2480 error = msleep_sbt(cr, &cr->cr_sc->ciss_mtx, PRIBIO, "cissREQ", 2481 SBT_1MS * timeout, 0, 0); 2482 } 2483 return(error); 2484 } 2485 2486 #if 0 2487 /************************************************************************ 2488 * Abort a request. Note that a potential exists here to race the 2489 * request being completed; the caller must deal with this. 2490 */ 2491 static int 2492 ciss_abort_request(struct ciss_request *ar) 2493 { 2494 struct ciss_request *cr; 2495 struct ciss_command *cc; 2496 struct ciss_message_cdb *cmc; 2497 int error; 2498 2499 debug_called(1); 2500 2501 /* get a request */ 2502 if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0) 2503 return(error); 2504 2505 /* build the abort command */ 2506 cc = cr->cr_cc; 2507 cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */ 2508 cc->header.address.physical.target = 0; 2509 cc->header.address.physical.bus = 0; 2510 cc->cdb.cdb_length = sizeof(*cmc); 2511 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 2512 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2513 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 2514 cc->cdb.timeout = 30; 2515 2516 cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]); 2517 cmc->opcode = CISS_OPCODE_MESSAGE_ABORT; 2518 cmc->type = CISS_MESSAGE_ABORT_TASK; 2519 cmc->abort_tag = ar->cr_tag; /* endianness?? */ 2520 2521 /* 2522 * Send the request and wait for a response. If we believe we 2523 * aborted the request OK, clear the flag that indicates it's 2524 * running. 2525 */ 2526 error = ciss_synch_request(cr, 35 * 1000); 2527 if (!error) 2528 error = ciss_report_request(cr, NULL, NULL); 2529 ciss_release_request(cr); 2530 2531 return(error); 2532 } 2533 #endif 2534 2535 /************************************************************************ 2536 * Fetch and initialise a request 2537 */ 2538 static int 2539 ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp) 2540 { 2541 struct ciss_request *cr; 2542 2543 debug_called(2); 2544 2545 /* 2546 * Get a request and clean it up. 2547 */ 2548 if ((cr = ciss_dequeue_free(sc)) == NULL) 2549 return(ENOMEM); 2550 2551 cr->cr_data = NULL; 2552 cr->cr_flags = 0; 2553 cr->cr_complete = NULL; 2554 cr->cr_private = NULL; 2555 cr->cr_sg_tag = CISS_SG_MAX; /* Backstop to prevent accidents */ 2556 2557 ciss_preen_command(cr); 2558 *crp = cr; 2559 return(0); 2560 } 2561 2562 static void 2563 ciss_preen_command(struct ciss_request *cr) 2564 { 2565 struct ciss_command *cc; 2566 u_int32_t cmdphys; 2567 2568 /* 2569 * Clean up the command structure. 2570 * 2571 * Note that we set up the error_info structure here, since the 2572 * length can be overwritten by any command. 2573 */ 2574 cc = cr->cr_cc; 2575 cc->header.sg_in_list = 0; /* kinda inefficient this way */ 2576 cc->header.sg_total = 0; 2577 cc->header.host_tag = cr->cr_tag << 2; 2578 cc->header.host_tag_zeroes = 0; 2579 bzero(&(cc->sg[0]), CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command)); 2580 cmdphys = cr->cr_ccphys; 2581 cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command); 2582 cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command); 2583 } 2584 2585 /************************************************************************ 2586 * Release a request to the free list. 2587 */ 2588 static void 2589 ciss_release_request(struct ciss_request *cr) 2590 { 2591 2592 debug_called(2); 2593 2594 /* release the request to the free queue */ 2595 ciss_requeue_free(cr); 2596 } 2597 2598 /************************************************************************ 2599 * Allocate a request that will be used to send a BMIC command. Do some 2600 * of the common setup here to avoid duplicating it everywhere else. 2601 */ 2602 static int 2603 ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp, 2604 int opcode, void **bufp, size_t bufsize) 2605 { 2606 struct ciss_request *cr; 2607 struct ciss_command *cc; 2608 struct ciss_bmic_cdb *cbc; 2609 void *buf; 2610 int error; 2611 int dataout; 2612 2613 debug_called(2); 2614 2615 cr = NULL; 2616 buf = NULL; 2617 2618 /* 2619 * Get a request. 2620 */ 2621 if ((error = ciss_get_request(sc, &cr)) != 0) 2622 goto out; 2623 2624 /* 2625 * Allocate data storage if requested, determine the data direction. 2626 */ 2627 dataout = 0; 2628 if ((bufsize > 0) && (bufp != NULL)) { 2629 if (*bufp == NULL) { 2630 if ((buf = malloc(bufsize, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) { 2631 error = ENOMEM; 2632 goto out; 2633 } 2634 } else { 2635 buf = *bufp; 2636 dataout = 1; /* we are given a buffer, so we are writing */ 2637 } 2638 } 2639 2640 /* 2641 * Build a CISS BMIC command to get the logical drive ID. 2642 */ 2643 cr->cr_data = buf; 2644 cr->cr_length = bufsize; 2645 if (!dataout) 2646 cr->cr_flags = CISS_REQ_DATAIN; 2647 2648 cc = cr->cr_cc; 2649 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 2650 cc->header.address.physical.bus = 0; 2651 cc->header.address.physical.target = 0; 2652 cc->cdb.cdb_length = sizeof(*cbc); 2653 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 2654 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 2655 cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ; 2656 cc->cdb.timeout = 0; 2657 2658 cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]); 2659 bzero(cbc, sizeof(*cbc)); 2660 cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ; 2661 cbc->bmic_opcode = opcode; 2662 cbc->size = htons((u_int16_t)bufsize); 2663 2664 out: 2665 if (error) { 2666 if (cr != NULL) 2667 ciss_release_request(cr); 2668 } else { 2669 *crp = cr; 2670 if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL)) 2671 *bufp = buf; 2672 } 2673 return(error); 2674 } 2675 2676 /************************************************************************ 2677 * Handle a command passed in from userspace. 2678 */ 2679 static int 2680 ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc) 2681 { 2682 struct ciss_request *cr; 2683 struct ciss_command *cc; 2684 struct ciss_error_info *ce; 2685 int error = 0; 2686 2687 debug_called(1); 2688 2689 cr = NULL; 2690 2691 /* 2692 * Get a request. 2693 */ 2694 while (ciss_get_request(sc, &cr) != 0) 2695 msleep(sc, &sc->ciss_mtx, PPAUSE, "cissREQ", hz); 2696 cc = cr->cr_cc; 2697 2698 /* 2699 * Allocate an in-kernel databuffer if required, copy in user data. 2700 */ 2701 mtx_unlock(&sc->ciss_mtx); 2702 cr->cr_length = ioc->buf_size; 2703 if (ioc->buf_size > 0) { 2704 if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 2705 error = ENOMEM; 2706 goto out_unlocked; 2707 } 2708 if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) { 2709 debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2710 goto out_unlocked; 2711 } 2712 } 2713 2714 /* 2715 * Build the request based on the user command. 2716 */ 2717 bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address)); 2718 bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb)); 2719 2720 /* XXX anything else to populate here? */ 2721 mtx_lock(&sc->ciss_mtx); 2722 2723 /* 2724 * Run the command. 2725 */ 2726 if ((error = ciss_synch_request(cr, 60 * 1000))) { 2727 debug(0, "request failed - %d", error); 2728 goto out; 2729 } 2730 2731 /* 2732 * Check to see if the command succeeded. 2733 */ 2734 ce = (struct ciss_error_info *)&(cc->sg[0]); 2735 if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) == 0) 2736 bzero(ce, sizeof(*ce)); 2737 2738 /* 2739 * Copy the results back to the user. 2740 */ 2741 bcopy(ce, &ioc->error_info, sizeof(*ce)); 2742 mtx_unlock(&sc->ciss_mtx); 2743 if ((ioc->buf_size > 0) && 2744 (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) { 2745 debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size); 2746 goto out_unlocked; 2747 } 2748 2749 /* done OK */ 2750 error = 0; 2751 2752 out_unlocked: 2753 mtx_lock(&sc->ciss_mtx); 2754 2755 out: 2756 if ((cr != NULL) && (cr->cr_data != NULL)) 2757 free(cr->cr_data, CISS_MALLOC_CLASS); 2758 if (cr != NULL) 2759 ciss_release_request(cr); 2760 return(error); 2761 } 2762 2763 /************************************************************************ 2764 * Map a request into bus-visible space, initialise the scatter/gather 2765 * list. 2766 */ 2767 static int 2768 ciss_map_request(struct ciss_request *cr) 2769 { 2770 struct ciss_softc *sc; 2771 int error = 0; 2772 2773 debug_called(2); 2774 2775 sc = cr->cr_sc; 2776 2777 /* check that mapping is necessary */ 2778 if (cr->cr_flags & CISS_REQ_MAPPED) 2779 return(0); 2780 2781 cr->cr_flags |= CISS_REQ_MAPPED; 2782 2783 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2784 BUS_DMASYNC_PREWRITE); 2785 2786 if (cr->cr_data != NULL) { 2787 if (cr->cr_flags & CISS_REQ_CCB) 2788 error = bus_dmamap_load_ccb(sc->ciss_buffer_dmat, 2789 cr->cr_datamap, cr->cr_data, 2790 ciss_request_map_helper, cr, 0); 2791 else 2792 error = bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, 2793 cr->cr_data, cr->cr_length, 2794 ciss_request_map_helper, cr, 0); 2795 if (error != 0) 2796 return (error); 2797 } else { 2798 /* 2799 * Post the command to the adapter. 2800 */ 2801 cr->cr_sg_tag = CISS_SG_NONE; 2802 cr->cr_flags |= CISS_REQ_BUSY; 2803 if (sc->ciss_perf) 2804 CISS_TL_PERF_POST_CMD(sc, cr); 2805 else 2806 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys); 2807 } 2808 2809 return(0); 2810 } 2811 2812 static void 2813 ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2814 { 2815 struct ciss_command *cc; 2816 struct ciss_request *cr; 2817 struct ciss_softc *sc; 2818 int i; 2819 2820 debug_called(2); 2821 2822 cr = (struct ciss_request *)arg; 2823 sc = cr->cr_sc; 2824 cc = cr->cr_cc; 2825 2826 for (i = 0; i < nseg; i++) { 2827 cc->sg[i].address = segs[i].ds_addr; 2828 cc->sg[i].length = segs[i].ds_len; 2829 cc->sg[i].extension = 0; 2830 } 2831 /* we leave the s/g table entirely within the command */ 2832 cc->header.sg_in_list = nseg; 2833 cc->header.sg_total = nseg; 2834 2835 if (cr->cr_flags & CISS_REQ_DATAIN) 2836 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD); 2837 if (cr->cr_flags & CISS_REQ_DATAOUT) 2838 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE); 2839 2840 if (nseg == 0) 2841 cr->cr_sg_tag = CISS_SG_NONE; 2842 else if (nseg == 1) 2843 cr->cr_sg_tag = CISS_SG_1; 2844 else if (nseg == 2) 2845 cr->cr_sg_tag = CISS_SG_2; 2846 else if (nseg <= 4) 2847 cr->cr_sg_tag = CISS_SG_4; 2848 else if (nseg <= 8) 2849 cr->cr_sg_tag = CISS_SG_8; 2850 else if (nseg <= 16) 2851 cr->cr_sg_tag = CISS_SG_16; 2852 else if (nseg <= 32) 2853 cr->cr_sg_tag = CISS_SG_32; 2854 else 2855 cr->cr_sg_tag = CISS_SG_MAX; 2856 2857 /* 2858 * Post the command to the adapter. 2859 */ 2860 cr->cr_flags |= CISS_REQ_BUSY; 2861 if (sc->ciss_perf) 2862 CISS_TL_PERF_POST_CMD(sc, cr); 2863 else 2864 CISS_TL_SIMPLE_POST_CMD(sc, cr->cr_ccphys); 2865 } 2866 2867 /************************************************************************ 2868 * Unmap a request from bus-visible space. 2869 */ 2870 static void 2871 ciss_unmap_request(struct ciss_request *cr) 2872 { 2873 struct ciss_softc *sc; 2874 2875 debug_called(2); 2876 2877 sc = cr->cr_sc; 2878 2879 /* check that unmapping is necessary */ 2880 if ((cr->cr_flags & CISS_REQ_MAPPED) == 0) 2881 return; 2882 2883 bus_dmamap_sync(sc->ciss_command_dmat, sc->ciss_command_map, 2884 BUS_DMASYNC_POSTWRITE); 2885 2886 if (cr->cr_data == NULL) 2887 goto out; 2888 2889 if (cr->cr_flags & CISS_REQ_DATAIN) 2890 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD); 2891 if (cr->cr_flags & CISS_REQ_DATAOUT) 2892 bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE); 2893 2894 bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap); 2895 out: 2896 cr->cr_flags &= ~CISS_REQ_MAPPED; 2897 } 2898 2899 /************************************************************************ 2900 * Attach the driver to CAM. 2901 * 2902 * We put all the logical drives on a single SCSI bus. 2903 */ 2904 static int 2905 ciss_cam_init(struct ciss_softc *sc) 2906 { 2907 int i, maxbus; 2908 2909 debug_called(1); 2910 2911 /* 2912 * Allocate a devq. We can reuse this for the masked physical 2913 * devices if we decide to export these as well. 2914 */ 2915 if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests - 2)) == NULL) { 2916 ciss_printf(sc, "can't allocate CAM SIM queue\n"); 2917 return(ENOMEM); 2918 } 2919 2920 /* 2921 * Create a SIM. 2922 * 2923 * This naturally wastes a bit of memory. The alternative is to allocate 2924 * and register each bus as it is found, and then track them on a linked 2925 * list. Unfortunately, the driver has a few places where it needs to 2926 * look up the SIM based solely on bus number, and it's unclear whether 2927 * a list traversal would work for these situations. 2928 */ 2929 maxbus = max(sc->ciss_max_logical_bus, sc->ciss_max_physical_bus + 2930 CISS_PHYSICAL_BASE); 2931 sc->ciss_cam_sim = malloc(maxbus * sizeof(struct cam_sim*), 2932 CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO); 2933 if (sc->ciss_cam_sim == NULL) { 2934 ciss_printf(sc, "can't allocate memory for controller SIM\n"); 2935 return(ENOMEM); 2936 } 2937 2938 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 2939 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2940 "ciss", sc, 2941 device_get_unit(sc->ciss_dev), 2942 &sc->ciss_mtx, 2943 2, 2944 sc->ciss_max_requests - 2, 2945 sc->ciss_cam_devq)) == NULL) { 2946 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2947 return(ENOMEM); 2948 } 2949 2950 /* 2951 * Register bus with this SIM. 2952 */ 2953 mtx_lock(&sc->ciss_mtx); 2954 if (i == 0 || sc->ciss_controllers[i].physical.bus != 0) { 2955 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) { 2956 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2957 mtx_unlock(&sc->ciss_mtx); 2958 return (ENXIO); 2959 } 2960 } 2961 mtx_unlock(&sc->ciss_mtx); 2962 } 2963 2964 for (i = CISS_PHYSICAL_BASE; i < sc->ciss_max_physical_bus + 2965 CISS_PHYSICAL_BASE; i++) { 2966 if ((sc->ciss_cam_sim[i] = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, 2967 "ciss", sc, 2968 device_get_unit(sc->ciss_dev), 2969 &sc->ciss_mtx, 1, 2970 sc->ciss_max_requests - 2, 2971 sc->ciss_cam_devq)) == NULL) { 2972 ciss_printf(sc, "can't allocate CAM SIM for controller %d\n", i); 2973 return (ENOMEM); 2974 } 2975 2976 mtx_lock(&sc->ciss_mtx); 2977 if (xpt_bus_register(sc->ciss_cam_sim[i], sc->ciss_dev, i) != 0) { 2978 ciss_printf(sc, "can't register SCSI bus %d\n", i); 2979 mtx_unlock(&sc->ciss_mtx); 2980 return (ENXIO); 2981 } 2982 mtx_unlock(&sc->ciss_mtx); 2983 } 2984 2985 return(0); 2986 } 2987 2988 /************************************************************************ 2989 * Initiate a rescan of the 'logical devices' SIM 2990 */ 2991 static void 2992 ciss_cam_rescan_target(struct ciss_softc *sc, int bus, int target) 2993 { 2994 union ccb *ccb; 2995 2996 debug_called(1); 2997 2998 if ((ccb = xpt_alloc_ccb_nowait()) == NULL) { 2999 ciss_printf(sc, "rescan failed (can't allocate CCB)\n"); 3000 return; 3001 } 3002 3003 if (xpt_create_path(&ccb->ccb_h.path, NULL, 3004 cam_sim_path(sc->ciss_cam_sim[bus]), 3005 target, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 3006 ciss_printf(sc, "rescan failed (can't create path)\n"); 3007 xpt_free_ccb(ccb); 3008 return; 3009 } 3010 xpt_rescan(ccb); 3011 /* scan is now in progress */ 3012 } 3013 3014 /************************************************************************ 3015 * Handle requests coming from CAM 3016 */ 3017 static void 3018 ciss_cam_action(struct cam_sim *sim, union ccb *ccb) 3019 { 3020 struct ciss_softc *sc; 3021 struct ccb_scsiio *csio; 3022 int bus, target; 3023 int physical; 3024 3025 sc = cam_sim_softc(sim); 3026 bus = cam_sim_bus(sim); 3027 csio = (struct ccb_scsiio *)&ccb->csio; 3028 target = csio->ccb_h.target_id; 3029 physical = CISS_IS_PHYSICAL(bus); 3030 3031 switch (ccb->ccb_h.func_code) { 3032 /* perform SCSI I/O */ 3033 case XPT_SCSI_IO: 3034 if (!ciss_cam_action_io(sim, csio)) 3035 return; 3036 break; 3037 3038 /* perform geometry calculations */ 3039 case XPT_CALC_GEOMETRY: 3040 { 3041 struct ccb_calc_geometry *ccg = &ccb->ccg; 3042 struct ciss_ldrive *ld; 3043 3044 debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 3045 3046 ld = NULL; 3047 if (!physical) 3048 ld = &sc->ciss_logical[bus][target]; 3049 3050 /* 3051 * Use the cached geometry settings unless the fault tolerance 3052 * is invalid. 3053 */ 3054 if (physical || ld->cl_geometry.fault_tolerance == 0xFF) { 3055 u_int32_t secs_per_cylinder; 3056 3057 ccg->heads = 255; 3058 ccg->secs_per_track = 32; 3059 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 3060 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 3061 } else { 3062 ccg->heads = ld->cl_geometry.heads; 3063 ccg->secs_per_track = ld->cl_geometry.sectors; 3064 ccg->cylinders = ntohs(ld->cl_geometry.cylinders); 3065 } 3066 ccb->ccb_h.status = CAM_REQ_CMP; 3067 break; 3068 } 3069 3070 /* handle path attribute inquiry */ 3071 case XPT_PATH_INQ: 3072 { 3073 struct ccb_pathinq *cpi = &ccb->cpi; 3074 int sg_length; 3075 3076 debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); 3077 3078 cpi->version_num = 1; 3079 cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */ 3080 cpi->target_sprt = 0; 3081 cpi->hba_misc = 0; 3082 cpi->max_target = MAX(sc->ciss_max_physical_target, sc->ciss_cfg->max_logical_supported); 3083 cpi->max_lun = 0; /* 'logical drive' channel only */ 3084 if (ciss_initiator_id != CAM_TARGET_WILDCARD) 3085 cpi->initiator_id = ciss_initiator_id; 3086 else 3087 cpi->initiator_id = sc->ciss_cfg->max_logical_supported; 3088 strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 3089 strlcpy(cpi->hba_vid, "CISS", HBA_IDLEN); 3090 strlcpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 3091 cpi->unit_number = cam_sim_unit(sim); 3092 cpi->bus_id = cam_sim_bus(sim); 3093 cpi->base_transfer_speed = ciss_base_transfer_speed; 3094 cpi->transport = XPORT_SPI; 3095 cpi->transport_version = 2; 3096 cpi->protocol = PROTO_SCSI; 3097 cpi->protocol_version = SCSI_REV_2; 3098 if (sc->ciss_cfg->max_sg_length == 0) { 3099 sg_length = 17; 3100 } else { 3101 /* XXX Fix for ZMR cards that advertise max_sg_length == 32 3102 * Confusing bit here. max_sg_length is usually a power of 2. We always 3103 * need to subtract 1 to account for partial pages. Then we need to 3104 * align on a valid PAGE_SIZE so we round down to the nearest power of 2. 3105 * Add 1 so we can then subtract it out in the assignment to maxio. 3106 * The reason for all these shenanigans is to create a maxio value that 3107 * creates IO operations to volumes that yield consistent operations 3108 * with good performance. 3109 */ 3110 sg_length = sc->ciss_cfg->max_sg_length - 1; 3111 sg_length = (1 << (fls(sg_length) - 1)) + 1; 3112 } 3113 cpi->maxio = (min(CISS_MAX_SG_ELEMENTS, sg_length) - 1) * PAGE_SIZE; 3114 ccb->ccb_h.status = CAM_REQ_CMP; 3115 break; 3116 } 3117 3118 case XPT_GET_TRAN_SETTINGS: 3119 { 3120 struct ccb_trans_settings *cts = &ccb->cts; 3121 struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi; 3122 struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi; 3123 3124 debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", cam_sim_bus(sim), 3125 ctl->ccb_h.target_id); 3126 /* disconnect always OK */ 3127 cts->protocol = PROTO_SCSI; 3128 cts->protocol_version = SCSI_REV_2; 3129 cts->transport = XPORT_SPI; 3130 cts->transport_version = 2; 3131 3132 spi->valid = CTS_SPI_VALID_DISC; 3133 spi->flags = CTS_SPI_FLAGS_DISC_ENB; 3134 3135 scsi->valid = CTS_SCSI_VALID_TQ; 3136 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB; 3137 3138 cts->ccb_h.status = CAM_REQ_CMP; 3139 break; 3140 } 3141 3142 default: /* we can't do this */ 3143 debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code); 3144 ccb->ccb_h.status = CAM_REQ_INVALID; 3145 break; 3146 } 3147 3148 xpt_done(ccb); 3149 } 3150 3151 /************************************************************************ 3152 * Handle a CAM SCSI I/O request. 3153 */ 3154 static int 3155 ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio) 3156 { 3157 struct ciss_softc *sc; 3158 int bus, target; 3159 struct ciss_request *cr; 3160 struct ciss_command *cc; 3161 int error; 3162 3163 sc = cam_sim_softc(sim); 3164 bus = cam_sim_bus(sim); 3165 target = csio->ccb_h.target_id; 3166 3167 debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun); 3168 3169 /* check that the CDB pointer is not to a physical address */ 3170 if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) { 3171 debug(3, " CDB pointer is to physical address"); 3172 csio->ccb_h.status = CAM_REQ_CMP_ERR; 3173 } 3174 3175 /* abandon aborted ccbs or those that have failed validation */ 3176 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { 3177 debug(3, "abandoning CCB due to abort/validation failure"); 3178 return(EINVAL); 3179 } 3180 3181 /* handle emulation of some SCSI commands ourself */ 3182 if (ciss_cam_emulate(sc, csio)) 3183 return(0); 3184 3185 /* 3186 * Get a request to manage this command. If we can't, return the 3187 * ccb, freeze the queue and flag so that we unfreeze it when a 3188 * request completes. 3189 */ 3190 if ((error = ciss_get_request(sc, &cr)) != 0) { 3191 xpt_freeze_simq(sim, 1); 3192 sc->ciss_flags |= CISS_FLAG_BUSY; 3193 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3194 return(error); 3195 } 3196 3197 /* 3198 * Build the command. 3199 */ 3200 cc = cr->cr_cc; 3201 cr->cr_data = csio; 3202 cr->cr_length = csio->dxfer_len; 3203 cr->cr_complete = ciss_cam_complete; 3204 cr->cr_private = csio; 3205 3206 /* 3207 * Target the right logical volume. 3208 */ 3209 if (CISS_IS_PHYSICAL(bus)) 3210 cc->header.address = 3211 sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_address; 3212 else 3213 cc->header.address = 3214 sc->ciss_logical[bus][target].cl_address; 3215 cc->cdb.cdb_length = csio->cdb_len; 3216 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3217 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */ 3218 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 3219 cr->cr_flags = CISS_REQ_DATAOUT | CISS_REQ_CCB; 3220 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3221 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 3222 cr->cr_flags = CISS_REQ_DATAIN | CISS_REQ_CCB; 3223 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3224 } else { 3225 cr->cr_data = NULL; 3226 cr->cr_flags = 0; 3227 cc->cdb.direction = CISS_CDB_DIRECTION_NONE; 3228 } 3229 cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1; 3230 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 3231 bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len); 3232 } else { 3233 bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len); 3234 } 3235 3236 /* 3237 * Submit the request to the adapter. 3238 * 3239 * Note that this may fail if we're unable to map the request (and 3240 * if we ever learn a transport layer other than simple, may fail 3241 * if the adapter rejects the command). 3242 */ 3243 if ((error = ciss_start(cr)) != 0) { 3244 xpt_freeze_simq(sim, 1); 3245 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3246 if (error == EINPROGRESS) { 3247 error = 0; 3248 } else { 3249 csio->ccb_h.status |= CAM_REQUEUE_REQ; 3250 ciss_release_request(cr); 3251 } 3252 return(error); 3253 } 3254 3255 return(0); 3256 } 3257 3258 /************************************************************************ 3259 * Emulate SCSI commands the adapter doesn't handle as we might like. 3260 */ 3261 static int 3262 ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio) 3263 { 3264 int bus, target; 3265 u_int8_t opcode; 3266 3267 target = csio->ccb_h.target_id; 3268 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3269 opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 3270 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]; 3271 3272 if (CISS_IS_PHYSICAL(bus)) { 3273 if (sc->ciss_physical[CISS_CAM_TO_PBUS(bus)][target].cp_online != 1) { 3274 csio->ccb_h.status |= CAM_SEL_TIMEOUT; 3275 xpt_done((union ccb *)csio); 3276 return(1); 3277 } else 3278 return(0); 3279 } 3280 3281 /* 3282 * Handle requests for volumes that don't exist or are not online. 3283 * A selection timeout is slightly better than an illegal request. 3284 * Other errors might be better. 3285 */ 3286 if (sc->ciss_logical[bus][target].cl_status != CISS_LD_ONLINE) { 3287 csio->ccb_h.status |= CAM_SEL_TIMEOUT; 3288 xpt_done((union ccb *)csio); 3289 return(1); 3290 } 3291 3292 /* if we have to fake Synchronise Cache */ 3293 if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) { 3294 /* 3295 * If this is a Synchronise Cache command, typically issued when 3296 * a device is closed, flush the adapter and complete now. 3297 */ 3298 if (((csio->ccb_h.flags & CAM_CDB_POINTER) ? 3299 *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) { 3300 ciss_flush_adapter(sc); 3301 csio->ccb_h.status |= CAM_REQ_CMP; 3302 xpt_done((union ccb *)csio); 3303 return(1); 3304 } 3305 } 3306 3307 /* 3308 * A CISS target can only ever have one lun per target. REPORT_LUNS requires 3309 * at least one LUN field to be pre created for us, so snag it and fill in 3310 * the least significant byte indicating 1 LUN here. Emulate the command 3311 * return to shut up warning on console of a CDB error. swb 3312 */ 3313 if (opcode == REPORT_LUNS && csio->dxfer_len > 0) { 3314 csio->data_ptr[3] = 8; 3315 csio->ccb_h.status |= CAM_REQ_CMP; 3316 xpt_done((union ccb *)csio); 3317 return(1); 3318 } 3319 3320 return(0); 3321 } 3322 3323 /************************************************************************ 3324 * Check for possibly-completed commands. 3325 */ 3326 static void 3327 ciss_cam_poll(struct cam_sim *sim) 3328 { 3329 cr_qhead_t qh; 3330 struct ciss_softc *sc = cam_sim_softc(sim); 3331 3332 debug_called(2); 3333 3334 STAILQ_INIT(&qh); 3335 if (sc->ciss_perf) 3336 ciss_perf_done(sc, &qh); 3337 else 3338 ciss_done(sc, &qh); 3339 ciss_complete(sc, &qh); 3340 } 3341 3342 /************************************************************************ 3343 * Handle completion of a command - pass results back through the CCB 3344 */ 3345 static void 3346 ciss_cam_complete(struct ciss_request *cr) 3347 { 3348 struct ciss_softc *sc; 3349 struct ciss_command *cc; 3350 struct ciss_error_info *ce; 3351 struct ccb_scsiio *csio; 3352 int scsi_status; 3353 int command_status; 3354 3355 debug_called(2); 3356 3357 sc = cr->cr_sc; 3358 cc = cr->cr_cc; 3359 ce = (struct ciss_error_info *)&(cc->sg[0]); 3360 csio = (struct ccb_scsiio *)cr->cr_private; 3361 3362 /* 3363 * Extract status values from request. 3364 */ 3365 ciss_report_request(cr, &command_status, &scsi_status); 3366 switch(command_status) { 3367 case CISS_CMD_STATUS_DATA_UNDERRUN: 3368 csio->resid = ce->residual_count; 3369 /* FALLTHROUGH */ 3370 case CISS_CMD_STATUS_SUCCESS: 3371 csio->scsi_status = scsi_status; 3372 debug(2, "SCSI_STATUS_OK"); 3373 csio->ccb_h.status |= CAM_REQ_CMP; 3374 break; 3375 case CISS_CMD_STATUS_TARGET_STATUS: 3376 csio->scsi_status = scsi_status; 3377 bzero(&csio->sense_data, SSD_FULL_SIZE); 3378 bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length); 3379 if (csio->sense_len > ce->sense_length) 3380 csio->sense_resid = csio->sense_len - ce->sense_length; 3381 else 3382 csio->sense_resid = 0; 3383 csio->resid = ce->residual_count; 3384 csio->ccb_h.status |= CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; 3385 break; 3386 case CISS_CMD_STATUS_DATA_OVERRUN: 3387 csio->ccb_h.status |= CAM_DATA_RUN_ERR; 3388 break; 3389 default: 3390 csio->ccb_h.status |= CAM_REQ_CMP_ERR; 3391 break; 3392 } 3393 3394 /* handle post-command fixup */ 3395 ciss_cam_complete_fixup(sc, csio); 3396 3397 ciss_release_request(cr); 3398 if (sc->ciss_flags & CISS_FLAG_BUSY) { 3399 sc->ciss_flags &= ~CISS_FLAG_BUSY; 3400 if (csio->ccb_h.status & CAM_RELEASE_SIMQ) 3401 xpt_release_simq(xpt_path_sim(csio->ccb_h.path), 0); 3402 else 3403 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 3404 } 3405 xpt_done((union ccb *)csio); 3406 } 3407 3408 /******************************************************************************** 3409 * Fix up the result of some commands here. 3410 */ 3411 static void 3412 ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio) 3413 { 3414 struct scsi_inquiry_data *inq; 3415 struct ciss_ldrive *cl; 3416 uint8_t *cdb; 3417 int bus, target; 3418 3419 cdb = (csio->ccb_h.flags & CAM_CDB_POINTER) ? 3420 (uint8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes; 3421 if (cdb[0] == INQUIRY && 3422 (cdb[1] & SI_EVPD) == 0 && 3423 (csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN && 3424 csio->dxfer_len >= SHORT_INQUIRY_LENGTH) { 3425 inq = (struct scsi_inquiry_data *)csio->data_ptr; 3426 target = csio->ccb_h.target_id; 3427 bus = cam_sim_bus(xpt_path_sim(csio->ccb_h.path)); 3428 3429 /* 3430 * If the controller is in JBOD mode, there are no logical volumes. 3431 * Let the disks be probed and dealt with via CAM. Else, mask off 3432 * the physical disks and setup the parts of the inq structure for 3433 * the logical volume. swb 3434 */ 3435 if( !(sc->ciss_id->PowerUPNvramFlags & PWR_UP_FLAG_JBOD_ENABLED)){ 3436 if (CISS_IS_PHYSICAL(bus)) { 3437 if (SID_TYPE(inq) == T_DIRECT) 3438 inq->device = (inq->device & 0xe0) | T_NODEVICE; 3439 return; 3440 } 3441 cl = &sc->ciss_logical[bus][target]; 3442 3443 padstr(inq->vendor, "HP", 3444 SID_VENDOR_SIZE); 3445 padstr(inq->product, 3446 ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 3447 SID_PRODUCT_SIZE); 3448 padstr(inq->revision, 3449 ciss_name_ldrive_status(cl->cl_lstatus->status), 3450 SID_REVISION_SIZE); 3451 } 3452 } 3453 } 3454 3455 /******************************************************************************** 3456 * Name the device at (target) 3457 * 3458 * XXX is this strictly correct? 3459 */ 3460 static int 3461 ciss_name_device(struct ciss_softc *sc, int bus, int target) 3462 { 3463 struct cam_periph *periph; 3464 struct cam_path *path; 3465 int status; 3466 3467 if (CISS_IS_PHYSICAL(bus)) 3468 return (0); 3469 3470 status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim[bus]), 3471 target, 0); 3472 3473 if (status == CAM_REQ_CMP) { 3474 xpt_path_lock(path); 3475 periph = cam_periph_find(path, NULL); 3476 xpt_path_unlock(path); 3477 xpt_free_path(path); 3478 if (periph != NULL) { 3479 sprintf(sc->ciss_logical[bus][target].cl_name, "%s%d", 3480 periph->periph_name, periph->unit_number); 3481 return(0); 3482 } 3483 } 3484 sc->ciss_logical[bus][target].cl_name[0] = 0; 3485 return(ENOENT); 3486 } 3487 3488 /************************************************************************ 3489 * Periodic status monitoring. 3490 */ 3491 static void 3492 ciss_periodic(void *arg) 3493 { 3494 struct ciss_softc *sc; 3495 struct ciss_request *cr = NULL; 3496 struct ciss_command *cc = NULL; 3497 int error = 0; 3498 3499 debug_called(1); 3500 3501 sc = (struct ciss_softc *)arg; 3502 3503 /* 3504 * Check the adapter heartbeat. 3505 */ 3506 if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) { 3507 sc->ciss_heart_attack++; 3508 debug(0, "adapter heart attack in progress 0x%x/%d", 3509 sc->ciss_heartbeat, sc->ciss_heart_attack); 3510 if (sc->ciss_heart_attack == 3) { 3511 ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n"); 3512 ciss_disable_adapter(sc); 3513 return; 3514 } 3515 } else { 3516 sc->ciss_heartbeat = sc->ciss_cfg->heartbeat; 3517 sc->ciss_heart_attack = 0; 3518 debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat); 3519 } 3520 3521 /* 3522 * Send the NOP message and wait for a response. 3523 */ 3524 if (ciss_nop_message_heartbeat != 0 && (error = ciss_get_request(sc, &cr)) == 0) { 3525 cc = cr->cr_cc; 3526 cr->cr_complete = ciss_nop_complete; 3527 cc->cdb.cdb_length = 1; 3528 cc->cdb.type = CISS_CDB_TYPE_MESSAGE; 3529 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3530 cc->cdb.direction = CISS_CDB_DIRECTION_WRITE; 3531 cc->cdb.timeout = 0; 3532 cc->cdb.cdb[0] = CISS_OPCODE_MESSAGE_NOP; 3533 3534 if ((error = ciss_start(cr)) != 0) { 3535 ciss_printf(sc, "SENDING NOP MESSAGE FAILED\n"); 3536 } 3537 } 3538 3539 /* 3540 * If the notify event request has died for some reason, or has 3541 * not started yet, restart it. 3542 */ 3543 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) { 3544 debug(0, "(re)starting Event Notify chain"); 3545 ciss_notify_event(sc); 3546 } 3547 3548 /* 3549 * Reschedule. 3550 */ 3551 callout_reset(&sc->ciss_periodic, CISS_HEARTBEAT_RATE * hz, ciss_periodic, sc); 3552 } 3553 3554 static void 3555 ciss_nop_complete(struct ciss_request *cr) 3556 { 3557 struct ciss_softc *sc; 3558 static int first_time = 1; 3559 3560 sc = cr->cr_sc; 3561 if (ciss_report_request(cr, NULL, NULL) != 0) { 3562 if (first_time == 1) { 3563 first_time = 0; 3564 ciss_printf(sc, "SENDING NOP MESSAGE FAILED (not logging anymore)\n"); 3565 } 3566 } 3567 3568 ciss_release_request(cr); 3569 } 3570 3571 /************************************************************************ 3572 * Disable the adapter. 3573 * 3574 * The all requests in completed queue is failed with hardware error. 3575 * This will cause failover in a multipath configuration. 3576 */ 3577 static void 3578 ciss_disable_adapter(struct ciss_softc *sc) 3579 { 3580 cr_qhead_t qh; 3581 struct ciss_request *cr; 3582 struct ciss_command *cc; 3583 struct ciss_error_info *ce; 3584 int i; 3585 3586 CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc); 3587 pci_disable_busmaster(sc->ciss_dev); 3588 sc->ciss_flags &= ~CISS_FLAG_RUNNING; 3589 3590 STAILQ_INIT(&qh); 3591 for (i = 1; i < sc->ciss_max_requests; i++) { 3592 cr = &sc->ciss_request[i]; 3593 if ((cr->cr_flags & CISS_REQ_BUSY) == 0) 3594 continue; 3595 3596 cc = cr->cr_cc; 3597 ce = (struct ciss_error_info *)&(cc->sg[0]); 3598 ce->command_status = CISS_CMD_STATUS_HARDWARE_ERROR; 3599 ciss_enqueue_complete(cr, &qh); 3600 } 3601 3602 for (;;) { 3603 if ((cr = ciss_dequeue_complete(sc, &qh)) == NULL) 3604 break; 3605 3606 /* 3607 * If the request has a callback, invoke it. 3608 */ 3609 if (cr->cr_complete != NULL) { 3610 cr->cr_complete(cr); 3611 continue; 3612 } 3613 3614 /* 3615 * If someone is sleeping on this request, wake them up. 3616 */ 3617 if (cr->cr_flags & CISS_REQ_SLEEP) { 3618 cr->cr_flags &= ~CISS_REQ_SLEEP; 3619 wakeup(cr); 3620 continue; 3621 } 3622 } 3623 } 3624 3625 /************************************************************************ 3626 * Request a notification response from the adapter. 3627 * 3628 * If (cr) is NULL, this is the first request of the adapter, so 3629 * reset the adapter's message pointer and start with the oldest 3630 * message available. 3631 */ 3632 static void 3633 ciss_notify_event(struct ciss_softc *sc) 3634 { 3635 struct ciss_request *cr; 3636 struct ciss_command *cc; 3637 struct ciss_notify_cdb *cnc; 3638 int error; 3639 3640 debug_called(1); 3641 3642 cr = sc->ciss_periodic_notify; 3643 3644 /* get a request if we don't already have one */ 3645 if (cr == NULL) { 3646 if ((error = ciss_get_request(sc, &cr)) != 0) { 3647 debug(0, "can't get notify event request"); 3648 goto out; 3649 } 3650 sc->ciss_periodic_notify = cr; 3651 cr->cr_complete = ciss_notify_complete; 3652 debug(1, "acquired request %d", cr->cr_tag); 3653 } 3654 3655 /* 3656 * Get a databuffer if we don't already have one, note that the 3657 * adapter command wants a larger buffer than the actual 3658 * structure. 3659 */ 3660 if (cr->cr_data == NULL) { 3661 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3662 debug(0, "can't get notify event request buffer"); 3663 error = ENOMEM; 3664 goto out; 3665 } 3666 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3667 } 3668 3669 /* re-setup the request's command (since we never release it) XXX overkill*/ 3670 ciss_preen_command(cr); 3671 3672 /* (re)build the notify event command */ 3673 cc = cr->cr_cc; 3674 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3675 cc->header.address.physical.bus = 0; 3676 cc->header.address.physical.target = 0; 3677 3678 cc->cdb.cdb_length = sizeof(*cnc); 3679 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3680 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3681 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3682 cc->cdb.timeout = 0; /* no timeout, we hope */ 3683 3684 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3685 bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE); 3686 cnc->opcode = CISS_OPCODE_READ; 3687 cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT; 3688 cnc->timeout = 0; /* no timeout, we hope */ 3689 cnc->synchronous = 0; 3690 cnc->ordered = 0; 3691 cnc->seek_to_oldest = 0; 3692 if ((sc->ciss_flags & CISS_FLAG_RUNNING) == 0) 3693 cnc->new_only = 1; 3694 else 3695 cnc->new_only = 0; 3696 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3697 3698 /* submit the request */ 3699 error = ciss_start(cr); 3700 3701 out: 3702 if (error) { 3703 if (cr != NULL) { 3704 if (cr->cr_data != NULL) 3705 free(cr->cr_data, CISS_MALLOC_CLASS); 3706 ciss_release_request(cr); 3707 } 3708 sc->ciss_periodic_notify = NULL; 3709 debug(0, "can't submit notify event request"); 3710 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3711 } else { 3712 debug(1, "notify event submitted"); 3713 sc->ciss_flags |= CISS_FLAG_NOTIFY_OK; 3714 } 3715 } 3716 3717 static void 3718 ciss_notify_complete(struct ciss_request *cr) 3719 { 3720 struct ciss_notify *cn; 3721 struct ciss_softc *sc; 3722 int scsi_status; 3723 int command_status; 3724 debug_called(1); 3725 3726 cn = (struct ciss_notify *)cr->cr_data; 3727 sc = cr->cr_sc; 3728 3729 /* 3730 * Report request results, decode status. 3731 */ 3732 ciss_report_request(cr, &command_status, &scsi_status); 3733 3734 /* 3735 * Abort the chain on a fatal error. 3736 * 3737 * XXX which of these are actually errors? 3738 */ 3739 if ((command_status != CISS_CMD_STATUS_SUCCESS) && 3740 (command_status != CISS_CMD_STATUS_TARGET_STATUS) && 3741 (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */ 3742 ciss_printf(sc, "fatal error in Notify Event request (%s)\n", 3743 ciss_name_command_status(command_status)); 3744 ciss_release_request(cr); 3745 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3746 return; 3747 } 3748 3749 /* 3750 * If the adapter gave us a text message, print it. 3751 */ 3752 if (cn->message[0] != 0) 3753 ciss_printf(sc, "*** %.80s\n", cn->message); 3754 3755 debug(0, "notify event class %d subclass %d detail %d", 3756 cn->class, cn->subclass, cn->detail); 3757 3758 /* 3759 * If the response indicates that the notifier has been aborted, 3760 * release the notifier command. 3761 */ 3762 if ((cn->class == CISS_NOTIFY_NOTIFIER) && 3763 (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) && 3764 (cn->detail == 1)) { 3765 debug(0, "notifier exiting"); 3766 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3767 ciss_release_request(cr); 3768 sc->ciss_periodic_notify = NULL; 3769 wakeup(&sc->ciss_periodic_notify); 3770 } else { 3771 /* Handle notify events in a kernel thread */ 3772 ciss_enqueue_notify(cr); 3773 sc->ciss_periodic_notify = NULL; 3774 wakeup(&sc->ciss_periodic_notify); 3775 wakeup(&sc->ciss_notify); 3776 } 3777 /* 3778 * Send a new notify event command, if we're not aborting. 3779 */ 3780 if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) { 3781 ciss_notify_event(sc); 3782 } 3783 } 3784 3785 /************************************************************************ 3786 * Abort the Notify Event chain. 3787 * 3788 * Note that we can't just abort the command in progress; we have to 3789 * explicitly issue an Abort Notify Event command in order for the 3790 * adapter to clean up correctly. 3791 * 3792 * If we are called with CISS_FLAG_ABORTING set in the adapter softc, 3793 * the chain will not restart itself. 3794 */ 3795 static int 3796 ciss_notify_abort(struct ciss_softc *sc) 3797 { 3798 struct ciss_request *cr; 3799 struct ciss_command *cc; 3800 struct ciss_notify_cdb *cnc; 3801 int error, command_status, scsi_status; 3802 3803 debug_called(1); 3804 3805 cr = NULL; 3806 error = 0; 3807 3808 /* verify that there's an outstanding command */ 3809 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3810 goto out; 3811 3812 /* get a command to issue the abort with */ 3813 if ((error = ciss_get_request(sc, &cr))) 3814 goto out; 3815 3816 /* get a buffer for the result */ 3817 if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) { 3818 debug(0, "can't get notify event request buffer"); 3819 error = ENOMEM; 3820 goto out; 3821 } 3822 cr->cr_length = CISS_NOTIFY_DATA_SIZE; 3823 3824 /* build the CDB */ 3825 cc = cr->cr_cc; 3826 cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; 3827 cc->header.address.physical.bus = 0; 3828 cc->header.address.physical.target = 0; 3829 cc->cdb.cdb_length = sizeof(*cnc); 3830 cc->cdb.type = CISS_CDB_TYPE_COMMAND; 3831 cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; 3832 cc->cdb.direction = CISS_CDB_DIRECTION_READ; 3833 cc->cdb.timeout = 0; /* no timeout, we hope */ 3834 3835 cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]); 3836 bzero(cnc, sizeof(*cnc)); 3837 cnc->opcode = CISS_OPCODE_WRITE; 3838 cnc->command = CISS_COMMAND_ABORT_NOTIFY; 3839 cnc->length = htonl(CISS_NOTIFY_DATA_SIZE); 3840 #if 0 3841 ciss_print_request(cr); 3842 #endif 3843 3844 /* 3845 * Submit the request and wait for it to complete. 3846 */ 3847 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3848 ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error); 3849 goto out; 3850 } 3851 3852 /* 3853 * Check response. 3854 */ 3855 ciss_report_request(cr, &command_status, &scsi_status); 3856 switch(command_status) { 3857 case CISS_CMD_STATUS_SUCCESS: 3858 break; 3859 case CISS_CMD_STATUS_INVALID_COMMAND: 3860 /* 3861 * Some older adapters don't support the CISS version of this 3862 * command. Fall back to using the BMIC version. 3863 */ 3864 error = ciss_notify_abort_bmic(sc); 3865 if (error != 0) 3866 goto out; 3867 break; 3868 3869 case CISS_CMD_STATUS_TARGET_STATUS: 3870 /* 3871 * This can happen if the adapter thinks there wasn't an outstanding 3872 * Notify Event command but we did. We clean up here. 3873 */ 3874 if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) { 3875 if (sc->ciss_periodic_notify != NULL) 3876 ciss_release_request(sc->ciss_periodic_notify); 3877 error = 0; 3878 goto out; 3879 } 3880 /* FALLTHROUGH */ 3881 3882 default: 3883 ciss_printf(sc, "Abort Notify Event command failed (%s)\n", 3884 ciss_name_command_status(command_status)); 3885 error = EIO; 3886 goto out; 3887 } 3888 3889 /* 3890 * Sleep waiting for the notifier command to complete. Note 3891 * that if it doesn't, we may end up in a bad situation, since 3892 * the adapter may deliver it later. Also note that the adapter 3893 * requires the Notify Event command to be cancelled in order to 3894 * maintain internal bookkeeping. 3895 */ 3896 while (sc->ciss_periodic_notify != NULL) { 3897 error = msleep(&sc->ciss_periodic_notify, &sc->ciss_mtx, PRIBIO, "cissNEA", hz * 5); 3898 if (error == EWOULDBLOCK) { 3899 ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n"); 3900 break; 3901 } 3902 } 3903 3904 out: 3905 /* release the cancel request */ 3906 if (cr != NULL) { 3907 if (cr->cr_data != NULL) 3908 free(cr->cr_data, CISS_MALLOC_CLASS); 3909 ciss_release_request(cr); 3910 } 3911 if (error == 0) 3912 sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK; 3913 return(error); 3914 } 3915 3916 /************************************************************************ 3917 * Abort the Notify Event chain using a BMIC command. 3918 */ 3919 static int 3920 ciss_notify_abort_bmic(struct ciss_softc *sc) 3921 { 3922 struct ciss_request *cr; 3923 int error, command_status; 3924 3925 debug_called(1); 3926 3927 cr = NULL; 3928 error = 0; 3929 3930 /* verify that there's an outstanding command */ 3931 if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) 3932 goto out; 3933 3934 /* 3935 * Build a BMIC command to cancel the Notify on Event command. 3936 * 3937 * Note that we are sending a CISS opcode here. Odd. 3938 */ 3939 if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY, 3940 NULL, 0)) != 0) 3941 goto out; 3942 3943 /* 3944 * Submit the request and wait for it to complete. 3945 */ 3946 if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) { 3947 ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error); 3948 goto out; 3949 } 3950 3951 /* 3952 * Check response. 3953 */ 3954 ciss_report_request(cr, &command_status, NULL); 3955 switch(command_status) { 3956 case CISS_CMD_STATUS_SUCCESS: 3957 break; 3958 default: 3959 ciss_printf(sc, "error cancelling Notify on Event (%s)\n", 3960 ciss_name_command_status(command_status)); 3961 error = EIO; 3962 goto out; 3963 } 3964 3965 out: 3966 if (cr != NULL) 3967 ciss_release_request(cr); 3968 return(error); 3969 } 3970 3971 /************************************************************************ 3972 * Handle rescanning all the logical volumes when a notify event 3973 * causes the drives to come online or offline. 3974 */ 3975 static void 3976 ciss_notify_rescan_logical(struct ciss_softc *sc) 3977 { 3978 struct ciss_lun_report *cll; 3979 struct ciss_ldrive *ld; 3980 int i, j, ndrives; 3981 3982 /* 3983 * We must rescan all logical volumes to get the right logical 3984 * drive address. 3985 */ 3986 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_LOGICAL_LUNS, 3987 sc->ciss_cfg->max_logical_supported); 3988 if (cll == NULL) 3989 return; 3990 3991 ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address)); 3992 3993 /* 3994 * Delete any of the drives which were destroyed by the 3995 * firmware. 3996 */ 3997 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 3998 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) { 3999 ld = &sc->ciss_logical[i][j]; 4000 4001 if (ld->cl_update == 0) 4002 continue; 4003 4004 if (ld->cl_status != CISS_LD_ONLINE) { 4005 ciss_cam_rescan_target(sc, i, j); 4006 ld->cl_update = 0; 4007 if (ld->cl_ldrive) 4008 free(ld->cl_ldrive, CISS_MALLOC_CLASS); 4009 if (ld->cl_lstatus) 4010 free(ld->cl_lstatus, CISS_MALLOC_CLASS); 4011 4012 ld->cl_ldrive = NULL; 4013 ld->cl_lstatus = NULL; 4014 } 4015 } 4016 } 4017 4018 /* 4019 * Scan for new drives. 4020 */ 4021 for (i = 0; i < ndrives; i++) { 4022 int bus, target; 4023 4024 bus = CISS_LUN_TO_BUS(cll->lun[i].logical.lun); 4025 target = CISS_LUN_TO_TARGET(cll->lun[i].logical.lun); 4026 ld = &sc->ciss_logical[bus][target]; 4027 4028 if (ld->cl_update == 0) 4029 continue; 4030 4031 ld->cl_update = 0; 4032 ld->cl_address = cll->lun[i]; 4033 ld->cl_controller = &sc->ciss_controllers[bus]; 4034 if (ciss_identify_logical(sc, ld) == 0) { 4035 ciss_cam_rescan_target(sc, bus, target); 4036 } 4037 } 4038 free(cll, CISS_MALLOC_CLASS); 4039 } 4040 4041 /************************************************************************ 4042 * Handle a notify event relating to the status of a logical drive. 4043 * 4044 * XXX need to be able to defer some of these to properly handle 4045 * calling the "ID Physical drive" command, unless the 'extended' 4046 * drive IDs are always in BIG_MAP format. 4047 */ 4048 static void 4049 ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn) 4050 { 4051 struct ciss_ldrive *ld; 4052 int ostatus, bus, target; 4053 4054 debug_called(2); 4055 4056 bus = cn->device.physical.bus; 4057 target = cn->data.logical_status.logical_drive; 4058 ld = &sc->ciss_logical[bus][target]; 4059 4060 switch (cn->subclass) { 4061 case CISS_NOTIFY_LOGICAL_STATUS: 4062 switch (cn->detail) { 4063 case 0: 4064 ciss_name_device(sc, bus, target); 4065 ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n", 4066 cn->data.logical_status.logical_drive, ld->cl_name, 4067 ciss_name_ldrive_status(cn->data.logical_status.previous_state), 4068 ciss_name_ldrive_status(cn->data.logical_status.new_state), 4069 cn->data.logical_status.spare_state, 4070 "\20\1configured\2rebuilding\3failed\4in use\5available\n"); 4071 4072 /* 4073 * Update our idea of the drive's status. 4074 */ 4075 ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state); 4076 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 4077 if (ld->cl_lstatus != NULL) 4078 ld->cl_lstatus->status = cn->data.logical_status.new_state; 4079 4080 /* 4081 * Have CAM rescan the drive if its status has changed. 4082 */ 4083 if (ostatus != ld->cl_status) { 4084 ld->cl_update = 1; 4085 ciss_notify_rescan_logical(sc); 4086 } 4087 4088 break; 4089 4090 case 1: /* logical drive has recognised new media, needs Accept Media Exchange */ 4091 ciss_name_device(sc, bus, target); 4092 ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n", 4093 cn->data.logical_status.logical_drive, ld->cl_name); 4094 ciss_accept_media(sc, ld); 4095 4096 ld->cl_update = 1; 4097 ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state); 4098 ciss_notify_rescan_logical(sc); 4099 break; 4100 4101 case 2: 4102 case 3: 4103 ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n", 4104 cn->data.rebuild_aborted.logical_drive, 4105 ld->cl_name, 4106 (cn->detail == 2) ? "read" : "write"); 4107 break; 4108 } 4109 break; 4110 4111 case CISS_NOTIFY_LOGICAL_ERROR: 4112 if (cn->detail == 0) { 4113 ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n", 4114 cn->data.io_error.logical_drive, 4115 ld->cl_name, 4116 cn->data.io_error.failure_bus, 4117 cn->data.io_error.failure_drive); 4118 /* XXX should we take the drive down at this point, or will we be told? */ 4119 } 4120 break; 4121 4122 case CISS_NOTIFY_LOGICAL_SURFACE: 4123 if (cn->detail == 0) 4124 ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n", 4125 cn->data.consistency_completed.logical_drive, 4126 ld->cl_name); 4127 break; 4128 } 4129 } 4130 4131 /************************************************************************ 4132 * Handle a notify event relating to the status of a physical drive. 4133 */ 4134 static void 4135 ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn) 4136 { 4137 } 4138 4139 /************************************************************************ 4140 * Handle a notify event relating to the status of a physical drive. 4141 */ 4142 static void 4143 ciss_notify_hotplug(struct ciss_softc *sc, struct ciss_notify *cn) 4144 { 4145 struct ciss_lun_report *cll = NULL; 4146 int bus, target; 4147 4148 switch (cn->subclass) { 4149 case CISS_NOTIFY_HOTPLUG_PHYSICAL: 4150 case CISS_NOTIFY_HOTPLUG_NONDISK: 4151 bus = CISS_BIG_MAP_BUS(sc, cn->data.drive.big_physical_drive_number); 4152 target = 4153 CISS_BIG_MAP_TARGET(sc, cn->data.drive.big_physical_drive_number); 4154 4155 if (cn->detail == 0) { 4156 /* 4157 * Mark the device offline so that it'll start producing selection 4158 * timeouts to the upper layer. 4159 */ 4160 if ((bus >= 0) && (target >= 0)) 4161 sc->ciss_physical[bus][target].cp_online = 0; 4162 } else { 4163 /* 4164 * Rescan the physical lun list for new items 4165 */ 4166 cll = ciss_report_luns(sc, CISS_OPCODE_REPORT_PHYSICAL_LUNS, 4167 sc->ciss_cfg->max_physical_supported); 4168 if (cll == NULL) { 4169 ciss_printf(sc, "Warning, cannot get physical lun list\n"); 4170 break; 4171 } 4172 ciss_filter_physical(sc, cll); 4173 } 4174 break; 4175 4176 default: 4177 ciss_printf(sc, "Unknown hotplug event %d\n", cn->subclass); 4178 return; 4179 } 4180 4181 if (cll != NULL) 4182 free(cll, CISS_MALLOC_CLASS); 4183 } 4184 4185 /************************************************************************ 4186 * Handle deferred processing of notify events. Notify events may need 4187 * sleep which is unsafe during an interrupt. 4188 */ 4189 static void 4190 ciss_notify_thread(void *arg) 4191 { 4192 struct ciss_softc *sc; 4193 struct ciss_request *cr; 4194 struct ciss_notify *cn; 4195 4196 sc = (struct ciss_softc *)arg; 4197 mtx_lock(&sc->ciss_mtx); 4198 4199 for (;;) { 4200 if (STAILQ_EMPTY(&sc->ciss_notify) != 0 && 4201 (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) == 0) { 4202 msleep(&sc->ciss_notify, &sc->ciss_mtx, PUSER, "idle", 0); 4203 } 4204 4205 if (sc->ciss_flags & CISS_FLAG_THREAD_SHUT) 4206 break; 4207 4208 cr = ciss_dequeue_notify(sc); 4209 4210 if (cr == NULL) { 4211 /* 4212 * We get a NULL message sometimes when unplugging/replugging 4213 * stuff But this indicates a bug, since we only wake this thread 4214 * when we (a) set the THREAD_SHUT flag, or (b) we have enqueued 4215 * something. Since it's reported around errors, it may be a 4216 * locking bug related to ciss_flags being modified in multiple 4217 * threads some without ciss_mtx held. Or there's some other 4218 * way we either fail to sleep or corrupt the ciss_flags. 4219 */ 4220 ciss_printf(sc, "Driver bug: NULL notify event received\n"); 4221 continue; 4222 } 4223 4224 cn = (struct ciss_notify *)cr->cr_data; 4225 4226 switch (cn->class) { 4227 case CISS_NOTIFY_HOTPLUG: 4228 ciss_notify_hotplug(sc, cn); 4229 break; 4230 case CISS_NOTIFY_LOGICAL: 4231 ciss_notify_logical(sc, cn); 4232 break; 4233 case CISS_NOTIFY_PHYSICAL: 4234 ciss_notify_physical(sc, cn); 4235 break; 4236 } 4237 4238 ciss_release_request(cr); 4239 } 4240 sc->ciss_notify_thread = NULL; 4241 wakeup(&sc->ciss_notify_thread); 4242 4243 mtx_unlock(&sc->ciss_mtx); 4244 kproc_exit(0); 4245 } 4246 4247 /************************************************************************ 4248 * Start the notification kernel thread. 4249 */ 4250 static void 4251 ciss_spawn_notify_thread(struct ciss_softc *sc) 4252 { 4253 4254 if (kproc_create((void(*)(void *))ciss_notify_thread, sc, 4255 &sc->ciss_notify_thread, 0, 0, "ciss_notify%d", 4256 device_get_unit(sc->ciss_dev))) 4257 panic("Could not create notify thread\n"); 4258 } 4259 4260 /************************************************************************ 4261 * Kill the notification kernel thread. 4262 */ 4263 static void 4264 ciss_kill_notify_thread(struct ciss_softc *sc) 4265 { 4266 4267 if (sc->ciss_notify_thread == NULL) 4268 return; 4269 4270 sc->ciss_flags |= CISS_FLAG_THREAD_SHUT; 4271 wakeup(&sc->ciss_notify); 4272 msleep(&sc->ciss_notify_thread, &sc->ciss_mtx, PUSER, "thtrm", 0); 4273 } 4274 4275 /************************************************************************ 4276 * Print a request. 4277 */ 4278 #ifdef DDB 4279 static void 4280 ciss_print_request(struct ciss_request *cr) 4281 { 4282 struct ciss_softc *sc; 4283 struct ciss_command *cc; 4284 int i; 4285 4286 sc = cr->cr_sc; 4287 cc = cr->cr_cc; 4288 4289 ciss_printf(sc, "REQUEST @ %p\n", cr); 4290 ciss_printf(sc, " data %p/%d tag %d flags %b\n", 4291 cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags, 4292 "\20\1mapped\2sleep\3poll\4dataout\5datain\n"); 4293 ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n", 4294 cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag); 4295 switch(cc->header.address.mode.mode) { 4296 case CISS_HDR_ADDRESS_MODE_PERIPHERAL: 4297 case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL: 4298 ciss_printf(sc, " physical bus %d target %d\n", 4299 cc->header.address.physical.bus, cc->header.address.physical.target); 4300 break; 4301 case CISS_HDR_ADDRESS_MODE_LOGICAL: 4302 ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun); 4303 break; 4304 } 4305 ciss_printf(sc, " %s cdb length %d type %s attribute %s\n", 4306 (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" : 4307 (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" : 4308 (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??", 4309 cc->cdb.cdb_length, 4310 (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" : 4311 (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??", 4312 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" : 4313 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" : 4314 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" : 4315 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" : 4316 (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??"); 4317 ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " "); 4318 4319 if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) { 4320 /* XXX print error info */ 4321 } else { 4322 /* since we don't use chained s/g, don't support it here */ 4323 for (i = 0; i < cc->header.sg_in_list; i++) { 4324 if ((i % 4) == 0) 4325 ciss_printf(sc, " "); 4326 printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length); 4327 if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1))) 4328 printf("\n"); 4329 } 4330 } 4331 } 4332 #endif 4333 4334 /************************************************************************ 4335 * Print information about the status of a logical drive. 4336 */ 4337 static void 4338 ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld) 4339 { 4340 int bus, target, i; 4341 4342 if (ld->cl_lstatus == NULL) { 4343 printf("does not exist\n"); 4344 return; 4345 } 4346 4347 /* print drive status */ 4348 switch(ld->cl_lstatus->status) { 4349 case CISS_LSTATUS_OK: 4350 printf("online\n"); 4351 break; 4352 case CISS_LSTATUS_INTERIM_RECOVERY: 4353 printf("in interim recovery mode\n"); 4354 break; 4355 case CISS_LSTATUS_READY_RECOVERY: 4356 printf("ready to begin recovery\n"); 4357 break; 4358 case CISS_LSTATUS_RECOVERING: 4359 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4360 target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding); 4361 printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n", 4362 bus, target, ld->cl_lstatus->blocks_to_recover); 4363 break; 4364 case CISS_LSTATUS_EXPANDING: 4365 printf("being expanded, %u blocks remaining\n", 4366 ld->cl_lstatus->blocks_to_recover); 4367 break; 4368 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4369 printf("queued for expansion\n"); 4370 break; 4371 case CISS_LSTATUS_FAILED: 4372 printf("queued for expansion\n"); 4373 break; 4374 case CISS_LSTATUS_WRONG_PDRIVE: 4375 printf("wrong physical drive inserted\n"); 4376 break; 4377 case CISS_LSTATUS_MISSING_PDRIVE: 4378 printf("missing a needed physical drive\n"); 4379 break; 4380 case CISS_LSTATUS_BECOMING_READY: 4381 printf("becoming ready\n"); 4382 break; 4383 } 4384 4385 /* print failed physical drives */ 4386 for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) { 4387 bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]); 4388 target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]); 4389 if (bus == -1) 4390 continue; 4391 ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target, 4392 ld->cl_lstatus->drive_failure_map[i]); 4393 } 4394 } 4395 4396 #ifdef DDB 4397 #include <ddb/ddb.h> 4398 /************************************************************************ 4399 * Print information about the controller/driver. 4400 */ 4401 static void 4402 ciss_print_adapter(struct ciss_softc *sc) 4403 { 4404 int i, j; 4405 4406 ciss_printf(sc, "ADAPTER:\n"); 4407 for (i = 0; i < CISSQ_COUNT; i++) { 4408 ciss_printf(sc, "%s %d/%d\n", 4409 i == 0 ? "free" : 4410 i == 1 ? "busy" : "complete", 4411 sc->ciss_qstat[i].q_length, 4412 sc->ciss_qstat[i].q_max); 4413 } 4414 ciss_printf(sc, "max_requests %d\n", sc->ciss_max_requests); 4415 ciss_printf(sc, "flags %b\n", sc->ciss_flags, 4416 "\20\1notify_ok\2control_open\3aborting\4running\21fake_synch\22bmic_abort\n"); 4417 4418 for (i = 0; i < sc->ciss_max_logical_bus; i++) { 4419 for (j = 0; j < sc->ciss_cfg->max_logical_supported; j++) { 4420 ciss_printf(sc, "LOGICAL DRIVE %d: ", i); 4421 ciss_print_ldrive(sc, &sc->ciss_logical[i][j]); 4422 } 4423 } 4424 4425 /* XXX Should physical drives be printed out here? */ 4426 4427 for (i = 1; i < sc->ciss_max_requests; i++) 4428 ciss_print_request(sc->ciss_request + i); 4429 } 4430 4431 /* DDB hook */ 4432 DB_COMMAND(ciss_prt, db_ciss_prt) 4433 { 4434 struct ciss_softc *sc; 4435 devclass_t dc; 4436 int maxciss, i; 4437 4438 dc = devclass_find("ciss"); 4439 if ( dc == NULL ) { 4440 printf("%s: can't find devclass!\n", __func__); 4441 return; 4442 } 4443 maxciss = devclass_get_maxunit(dc); 4444 for (i = 0; i < maxciss; i++) { 4445 sc = devclass_get_softc(dc, i); 4446 ciss_print_adapter(sc); 4447 } 4448 } 4449 #endif 4450 4451 /************************************************************************ 4452 * Return a name for a logical drive status value. 4453 */ 4454 static const char * 4455 ciss_name_ldrive_status(int status) 4456 { 4457 switch (status) { 4458 case CISS_LSTATUS_OK: 4459 return("OK"); 4460 case CISS_LSTATUS_FAILED: 4461 return("failed"); 4462 case CISS_LSTATUS_NOT_CONFIGURED: 4463 return("not configured"); 4464 case CISS_LSTATUS_INTERIM_RECOVERY: 4465 return("interim recovery"); 4466 case CISS_LSTATUS_READY_RECOVERY: 4467 return("ready for recovery"); 4468 case CISS_LSTATUS_RECOVERING: 4469 return("recovering"); 4470 case CISS_LSTATUS_WRONG_PDRIVE: 4471 return("wrong physical drive inserted"); 4472 case CISS_LSTATUS_MISSING_PDRIVE: 4473 return("missing physical drive"); 4474 case CISS_LSTATUS_EXPANDING: 4475 return("expanding"); 4476 case CISS_LSTATUS_BECOMING_READY: 4477 return("becoming ready"); 4478 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4479 return("queued for expansion"); 4480 } 4481 return("unknown status"); 4482 } 4483 4484 /************************************************************************ 4485 * Return an online/offline/nonexistent value for a logical drive 4486 * status value. 4487 */ 4488 static int 4489 ciss_decode_ldrive_status(int status) 4490 { 4491 switch(status) { 4492 case CISS_LSTATUS_NOT_CONFIGURED: 4493 return(CISS_LD_NONEXISTENT); 4494 4495 case CISS_LSTATUS_OK: 4496 case CISS_LSTATUS_INTERIM_RECOVERY: 4497 case CISS_LSTATUS_READY_RECOVERY: 4498 case CISS_LSTATUS_RECOVERING: 4499 case CISS_LSTATUS_EXPANDING: 4500 case CISS_LSTATUS_QUEUED_FOR_EXPANSION: 4501 return(CISS_LD_ONLINE); 4502 4503 case CISS_LSTATUS_FAILED: 4504 case CISS_LSTATUS_WRONG_PDRIVE: 4505 case CISS_LSTATUS_MISSING_PDRIVE: 4506 case CISS_LSTATUS_BECOMING_READY: 4507 default: 4508 return(CISS_LD_OFFLINE); 4509 } 4510 } 4511 4512 /************************************************************************ 4513 * Return a name for a logical drive's organisation. 4514 */ 4515 static const char * 4516 ciss_name_ldrive_org(int org) 4517 { 4518 switch(org) { 4519 case CISS_LDRIVE_RAID0: 4520 return("RAID 0"); 4521 case CISS_LDRIVE_RAID1: 4522 return("RAID 1(1+0)"); 4523 case CISS_LDRIVE_RAID4: 4524 return("RAID 4"); 4525 case CISS_LDRIVE_RAID5: 4526 return("RAID 5"); 4527 case CISS_LDRIVE_RAID51: 4528 return("RAID 5+1"); 4529 case CISS_LDRIVE_RAIDADG: 4530 return("RAID ADG"); 4531 } 4532 return("unknown"); 4533 } 4534 4535 /************************************************************************ 4536 * Return a name for a command status value. 4537 */ 4538 static const char * 4539 ciss_name_command_status(int status) 4540 { 4541 switch(status) { 4542 case CISS_CMD_STATUS_SUCCESS: 4543 return("success"); 4544 case CISS_CMD_STATUS_TARGET_STATUS: 4545 return("target status"); 4546 case CISS_CMD_STATUS_DATA_UNDERRUN: 4547 return("data underrun"); 4548 case CISS_CMD_STATUS_DATA_OVERRUN: 4549 return("data overrun"); 4550 case CISS_CMD_STATUS_INVALID_COMMAND: 4551 return("invalid command"); 4552 case CISS_CMD_STATUS_PROTOCOL_ERROR: 4553 return("protocol error"); 4554 case CISS_CMD_STATUS_HARDWARE_ERROR: 4555 return("hardware error"); 4556 case CISS_CMD_STATUS_CONNECTION_LOST: 4557 return("connection lost"); 4558 case CISS_CMD_STATUS_ABORTED: 4559 return("aborted"); 4560 case CISS_CMD_STATUS_ABORT_FAILED: 4561 return("abort failed"); 4562 case CISS_CMD_STATUS_UNSOLICITED_ABORT: 4563 return("unsolicited abort"); 4564 case CISS_CMD_STATUS_TIMEOUT: 4565 return("timeout"); 4566 case CISS_CMD_STATUS_UNABORTABLE: 4567 return("unabortable"); 4568 } 4569 return("unknown status"); 4570 } 4571 4572 /************************************************************************ 4573 * Handle an open on the control device. 4574 */ 4575 static int 4576 ciss_open(struct cdev *dev, int flags, int fmt, struct thread *p) 4577 { 4578 struct ciss_softc *sc; 4579 4580 debug_called(1); 4581 4582 sc = (struct ciss_softc *)dev->si_drv1; 4583 4584 /* we might want to veto if someone already has us open */ 4585 4586 mtx_lock(&sc->ciss_mtx); 4587 sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN; 4588 mtx_unlock(&sc->ciss_mtx); 4589 return(0); 4590 } 4591 4592 /************************************************************************ 4593 * Handle the last close on the control device. 4594 */ 4595 static int 4596 ciss_close(struct cdev *dev, int flags, int fmt, struct thread *p) 4597 { 4598 struct ciss_softc *sc; 4599 4600 debug_called(1); 4601 4602 sc = (struct ciss_softc *)dev->si_drv1; 4603 4604 mtx_lock(&sc->ciss_mtx); 4605 sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN; 4606 mtx_unlock(&sc->ciss_mtx); 4607 return (0); 4608 } 4609 4610 /******************************************************************************** 4611 * Handle adapter-specific control operations. 4612 * 4613 * Note that the API here is compatible with the Linux driver, in order to 4614 * simplify the porting of Compaq's userland tools. 4615 */ 4616 static int 4617 ciss_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag, struct thread *p) 4618 { 4619 struct ciss_softc *sc; 4620 IOCTL_Command_struct *ioc = (IOCTL_Command_struct *)addr; 4621 #ifdef __amd64__ 4622 IOCTL_Command_struct32 *ioc32 = (IOCTL_Command_struct32 *)addr; 4623 IOCTL_Command_struct ioc_swab; 4624 #endif 4625 int error; 4626 4627 debug_called(1); 4628 4629 sc = (struct ciss_softc *)dev->si_drv1; 4630 error = 0; 4631 mtx_lock(&sc->ciss_mtx); 4632 4633 switch(cmd) { 4634 case CCISS_GETQSTATS: 4635 { 4636 union ciss_statrequest *cr = (union ciss_statrequest *)addr; 4637 4638 switch (cr->cs_item) { 4639 case CISSQ_FREE: 4640 case CISSQ_NOTIFY: 4641 bcopy(&sc->ciss_qstat[cr->cs_item], &cr->cs_qstat, 4642 sizeof(struct ciss_qstat)); 4643 break; 4644 default: 4645 error = ENOIOCTL; 4646 break; 4647 } 4648 4649 break; 4650 } 4651 4652 case CCISS_GETPCIINFO: 4653 { 4654 cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr; 4655 4656 pis->bus = pci_get_bus(sc->ciss_dev); 4657 pis->dev_fn = pci_get_slot(sc->ciss_dev); 4658 pis->board_id = (pci_get_subvendor(sc->ciss_dev) << 16) | 4659 pci_get_subdevice(sc->ciss_dev); 4660 4661 break; 4662 } 4663 4664 case CCISS_GETINTINFO: 4665 { 4666 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4667 4668 cis->delay = sc->ciss_cfg->interrupt_coalesce_delay; 4669 cis->count = sc->ciss_cfg->interrupt_coalesce_count; 4670 4671 break; 4672 } 4673 4674 case CCISS_SETINTINFO: 4675 { 4676 cciss_coalint_struct *cis = (cciss_coalint_struct *)addr; 4677 4678 if ((cis->delay == 0) && (cis->count == 0)) { 4679 error = EINVAL; 4680 break; 4681 } 4682 4683 /* 4684 * XXX apparently this is only safe if the controller is idle, 4685 * we should suspend it before doing this. 4686 */ 4687 sc->ciss_cfg->interrupt_coalesce_delay = cis->delay; 4688 sc->ciss_cfg->interrupt_coalesce_count = cis->count; 4689 4690 if (ciss_update_config(sc)) 4691 error = EIO; 4692 4693 /* XXX resume the controller here */ 4694 break; 4695 } 4696 4697 case CCISS_GETNODENAME: 4698 bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr, 4699 sizeof(NodeName_type)); 4700 break; 4701 4702 case CCISS_SETNODENAME: 4703 bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name, 4704 sizeof(NodeName_type)); 4705 if (ciss_update_config(sc)) 4706 error = EIO; 4707 break; 4708 4709 case CCISS_GETHEARTBEAT: 4710 *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat; 4711 break; 4712 4713 case CCISS_GETBUSTYPES: 4714 *(BusTypes_type *)addr = sc->ciss_cfg->bus_types; 4715 break; 4716 4717 case CCISS_GETFIRMVER: 4718 bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr, 4719 sizeof(FirmwareVer_type)); 4720 break; 4721 4722 case CCISS_GETDRIVERVER: 4723 *(DriverVer_type *)addr = CISS_DRIVER_VERSION; 4724 break; 4725 4726 case CCISS_REVALIDVOLS: 4727 /* 4728 * This is a bit ugly; to do it "right" we really need 4729 * to find any disks that have changed, kick CAM off them, 4730 * then rescan only these disks. It'd be nice if they 4731 * a) told us which disk(s) they were going to play with, 4732 * and b) which ones had arrived. 8( 4733 */ 4734 break; 4735 4736 #ifdef __amd64__ 4737 case CCISS_PASSTHRU32: 4738 ioc_swab.LUN_info = ioc32->LUN_info; 4739 ioc_swab.Request = ioc32->Request; 4740 ioc_swab.error_info = ioc32->error_info; 4741 ioc_swab.buf_size = ioc32->buf_size; 4742 ioc_swab.buf = (u_int8_t *)(uintptr_t)ioc32->buf; 4743 ioc = &ioc_swab; 4744 /* FALLTHROUGH */ 4745 #endif 4746 4747 case CCISS_PASSTHRU: 4748 error = ciss_user_command(sc, ioc); 4749 break; 4750 4751 default: 4752 debug(0, "unknown ioctl 0x%lx", cmd); 4753 4754 debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO); 4755 debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO); 4756 debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO); 4757 debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME); 4758 debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME); 4759 debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT); 4760 debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES); 4761 debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER); 4762 debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER); 4763 debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS); 4764 debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU); 4765 4766 error = ENOIOCTL; 4767 break; 4768 } 4769 4770 mtx_unlock(&sc->ciss_mtx); 4771 return(error); 4772 } 4773