twa.c revision 1.19
1 /* $NetBSD: twa.c,v 1.19 2008/04/10 19:13:38 cegger Exp $ */ 2 /* $wasabi: twa.c,v 1.27 2006/07/28 18:17:21 wrstuden Exp $ */ 3 4 /*- 5 * Copyright (c) 2004 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Jordan Rhody of Wasabi Systems, Inc. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 /*- 41 * Copyright (c) 2003-04 3ware, Inc. 42 * Copyright (c) 2000 Michael Smith 43 * Copyright (c) 2000 BSDi 44 * All rights reserved. 45 * 46 * Redistribution and use in source and binary forms, with or without 47 * modification, are permitted provided that the following conditions 48 * are met: 49 * 1. Redistributions of source code must retain the above copyright 50 * notice, this list of conditions and the following disclaimer. 51 * 2. Redistributions in binary form must reproduce the above copyright 52 * notice, this list of conditions and the following disclaimer in the 53 * documentation and/or other materials provided with the distribution. 54 * 55 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 56 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 57 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 58 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 59 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 60 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 61 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 62 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 63 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 64 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 65 * SUCH DAMAGE. 66 * 67 * $FreeBSD: src/sys/dev/twa/twa.c,v 1.2 2004/04/02 15:09:57 des Exp $ 68 */ 69 70 /* 71 * 3ware driver for 9000 series storage controllers. 72 * 73 * Author: Vinod Kashyap 74 */ 75 76 #include <sys/cdefs.h> 77 __KERNEL_RCSID(0, "$NetBSD: twa.c,v 1.19 2008/04/10 19:13:38 cegger Exp $"); 78 79 #include <sys/param.h> 80 #include <sys/systm.h> 81 #include <sys/kernel.h> 82 #include <sys/device.h> 83 #include <sys/queue.h> 84 #include <sys/proc.h> 85 #include <sys/bswap.h> 86 #include <sys/buf.h> 87 #include <sys/bufq.h> 88 #include <sys/endian.h> 89 #include <sys/malloc.h> 90 #include <sys/conf.h> 91 #include <sys/disk.h> 92 #include <sys/sysctl.h> 93 #include <sys/syslog.h> 94 #if 1 95 #include <sys/ktrace.h> 96 #endif 97 98 #include <uvm/uvm_extern.h> 99 100 #include <sys/bus.h> 101 102 #include <dev/pci/pcireg.h> 103 #include <dev/pci/pcivar.h> 104 #include <dev/pci/pcidevs.h> 105 #include <dev/pci/twareg.h> 106 #include <dev/pci/twavar.h> 107 #include <dev/pci/twaio.h> 108 109 #include <dev/scsipi/scsipi_all.h> 110 #include <dev/scsipi/scsipi_disk.h> 111 #include <dev/scsipi/scsipiconf.h> 112 #include <dev/scsipi/scsi_spc.h> 113 114 #include <dev/ldvar.h> 115 116 #include "locators.h" 117 118 #define PCI_CBIO 0x10 119 120 static int twa_fetch_aen(struct twa_softc *); 121 static void twa_aen_callback(struct twa_request *); 122 static int twa_find_aen(struct twa_softc *sc, uint16_t); 123 static uint16_t twa_enqueue_aen(struct twa_softc *sc, 124 struct twa_command_header *); 125 126 static void twa_attach(struct device *, struct device *, void *); 127 static void twa_shutdown(void *); 128 static int twa_init_connection(struct twa_softc *, uint16_t, uint32_t, 129 uint16_t, uint16_t, uint16_t, uint16_t, uint16_t *, 130 uint16_t *, uint16_t *, uint16_t *, uint32_t *); 131 static int twa_intr(void *); 132 static int twa_match(struct device *, struct cfdata *, void *); 133 static int twa_reset(struct twa_softc *); 134 135 static int twa_print(void *, const char *); 136 static int twa_soft_reset(struct twa_softc *); 137 138 static int twa_check_ctlr_state(struct twa_softc *, uint32_t); 139 static int twa_get_param(struct twa_softc *, int, int, size_t, 140 void (* callback)(struct twa_request *), 141 struct twa_param_9k **); 142 static int twa_set_param(struct twa_softc *, int, int, int, void *, 143 void (* callback)(struct twa_request *)); 144 static void twa_describe_controller(struct twa_softc *); 145 static int twa_wait_status(struct twa_softc *, uint32_t, uint32_t); 146 static int twa_done(struct twa_softc *); 147 #if 0 148 static int twa_flash_firmware(struct twa_softc *sc); 149 static int twa_hard_reset(struct twa_softc *sc); 150 #endif 151 152 extern struct cfdriver twa_cd; 153 extern uint32_t twa_fw_img_size; 154 extern uint8_t twa_fw_img[]; 155 156 CFATTACH_DECL(twa, sizeof(struct twa_softc), 157 twa_match, twa_attach, NULL, NULL); 158 159 /* FreeBSD driver revision for sysctl expected by the 3ware cli */ 160 const char twaver[] = "1.50.01.002"; 161 162 /* AEN messages. */ 163 static const struct twa_message twa_aen_table[] = { 164 {0x0000, "AEN queue empty"}, 165 {0x0001, "Controller reset occurred"}, 166 {0x0002, "Degraded unit detected"}, 167 {0x0003, "Controller error occured"}, 168 {0x0004, "Background rebuild failed"}, 169 {0x0005, "Background rebuild done"}, 170 {0x0006, "Incomplete unit detected"}, 171 {0x0007, "Background initialize done"}, 172 {0x0008, "Unclean shutdown detected"}, 173 {0x0009, "Drive timeout detected"}, 174 {0x000A, "Drive error detected"}, 175 {0x000B, "Rebuild started"}, 176 {0x000C, "Background initialize started"}, 177 {0x000D, "Entire logical unit was deleted"}, 178 {0x000E, "Background initialize failed"}, 179 {0x000F, "SMART attribute exceeded threshold"}, 180 {0x0010, "Power supply reported AC under range"}, 181 {0x0011, "Power supply reported DC out of range"}, 182 {0x0012, "Power supply reported a malfunction"}, 183 {0x0013, "Power supply predicted malfunction"}, 184 {0x0014, "Battery charge is below threshold"}, 185 {0x0015, "Fan speed is below threshold"}, 186 {0x0016, "Temperature sensor is above threshold"}, 187 {0x0017, "Power supply was removed"}, 188 {0x0018, "Power supply was inserted"}, 189 {0x0019, "Drive was removed from a bay"}, 190 {0x001A, "Drive was inserted into a bay"}, 191 {0x001B, "Drive bay cover door was opened"}, 192 {0x001C, "Drive bay cover door was closed"}, 193 {0x001D, "Product case was opened"}, 194 {0x0020, "Prepare for shutdown (power-off)"}, 195 {0x0021, "Downgrade UDMA mode to lower speed"}, 196 {0x0022, "Upgrade UDMA mode to higher speed"}, 197 {0x0023, "Sector repair completed"}, 198 {0x0024, "Sbuf memory test failed"}, 199 {0x0025, "Error flushing cached write data to disk"}, 200 {0x0026, "Drive reported data ECC error"}, 201 {0x0027, "DCB has checksum error"}, 202 {0x0028, "DCB version is unsupported"}, 203 {0x0029, "Background verify started"}, 204 {0x002A, "Background verify failed"}, 205 {0x002B, "Background verify done"}, 206 {0x002C, "Bad sector overwritten during rebuild"}, 207 {0x002E, "Replace failed because replacement drive too small"}, 208 {0x002F, "Verify failed because array was never initialized"}, 209 {0x0030, "Unsupported ATA drive"}, 210 {0x0031, "Synchronize host/controller time"}, 211 {0x0032, "Spare capacity is inadequate for some units"}, 212 {0x0033, "Background migration started"}, 213 {0x0034, "Background migration failed"}, 214 {0x0035, "Background migration done"}, 215 {0x0036, "Verify detected and fixed data/parity mismatch"}, 216 {0x0037, "SO-DIMM incompatible"}, 217 {0x0038, "SO-DIMM not detected"}, 218 {0x0039, "Corrected Sbuf ECC error"}, 219 {0x003A, "Drive power on reset detected"}, 220 {0x003B, "Background rebuild paused"}, 221 {0x003C, "Background initialize paused"}, 222 {0x003D, "Background verify paused"}, 223 {0x003E, "Background migration paused"}, 224 {0x003F, "Corrupt flash file system detected"}, 225 {0x0040, "Flash file system repaired"}, 226 {0x0041, "Unit number assignments were lost"}, 227 {0x0042, "Error during read of primary DCB"}, 228 {0x0043, "Latent error found in backup DCB"}, 229 {0x0044, "Battery voltage is normal"}, 230 {0x0045, "Battery voltage is low"}, 231 {0x0046, "Battery voltage is high"}, 232 {0x0047, "Battery voltage is too low"}, 233 {0x0048, "Battery voltage is too high"}, 234 {0x0049, "Battery temperature is normal"}, 235 {0x004A, "Battery temperature is low"}, 236 {0x004B, "Battery temperature is high"}, 237 {0x004C, "Battery temperature is too low"}, 238 {0x004D, "Battery temperature is too high"}, 239 {0x004E, "Battery capacity test started"}, 240 {0x004F, "Cache synchronization skipped"}, 241 {0x0050, "Battery capacity test completed"}, 242 {0x0051, "Battery health check started"}, 243 {0x0052, "Battery health check completed"}, 244 {0x0053, "Need to do a capacity test"}, 245 {0x0054, "Charge termination voltage is at high level"}, 246 {0x0055, "Battery charging started"}, 247 {0x0056, "Battery charging completed"}, 248 {0x0057, "Battery charging fault"}, 249 {0x0058, "Battery capacity is below warning level"}, 250 {0x0059, "Battery capacity is below error level"}, 251 {0x005A, "Battery is present"}, 252 {0x005B, "Battery is not present"}, 253 {0x005C, "Battery is weak"}, 254 {0x005D, "Battery health check failed"}, 255 {0x005E, "Cache synchronized after power fail"}, 256 {0x005F, "Cache synchronization failed; some data lost"}, 257 {0x0060, "Bad cache meta data checksum"}, 258 {0x0061, "Bad cache meta data signature"}, 259 {0x0062, "Cache meta data restore failed"}, 260 {0x0063, "BBU not found after power fail"}, 261 {0x00FC, "Recovered/finished array membership update"}, 262 {0x00FD, "Handler lockup"}, 263 {0x00FE, "Retrying PCI transfer"}, 264 {0x00FF, "AEN queue is full"}, 265 {0xFFFFFFFF, (char *)NULL} 266 }; 267 268 /* AEN severity table. */ 269 static const char *twa_aen_severity_table[] = { 270 "None", 271 "ERROR", 272 "WARNING", 273 "INFO", 274 "DEBUG", 275 (char *)NULL 276 }; 277 278 /* Error messages. */ 279 static const struct twa_message twa_error_table[] = { 280 {0x0100, "SGL entry contains zero data"}, 281 {0x0101, "Invalid command opcode"}, 282 {0x0102, "SGL entry has unaligned address"}, 283 {0x0103, "SGL size does not match command"}, 284 {0x0104, "SGL entry has illegal length"}, 285 {0x0105, "Command packet is not aligned"}, 286 {0x0106, "Invalid request ID"}, 287 {0x0107, "Duplicate request ID"}, 288 {0x0108, "ID not locked"}, 289 {0x0109, "LBA out of range"}, 290 {0x010A, "Logical unit not supported"}, 291 {0x010B, "Parameter table does not exist"}, 292 {0x010C, "Parameter index does not exist"}, 293 {0x010D, "Invalid field in CDB"}, 294 {0x010E, "Specified port has invalid drive"}, 295 {0x010F, "Parameter item size mismatch"}, 296 {0x0110, "Failed memory allocation"}, 297 {0x0111, "Memory request too large"}, 298 {0x0112, "Out of memory segments"}, 299 {0x0113, "Invalid address to deallocate"}, 300 {0x0114, "Out of memory"}, 301 {0x0115, "Out of heap"}, 302 {0x0120, "Double degrade"}, 303 {0x0121, "Drive not degraded"}, 304 {0x0122, "Reconstruct error"}, 305 {0x0123, "Replace not accepted"}, 306 {0x0124, "Replace drive capacity too small"}, 307 {0x0125, "Sector count not allowed"}, 308 {0x0126, "No spares left"}, 309 {0x0127, "Reconstruct error"}, 310 {0x0128, "Unit is offline"}, 311 {0x0129, "Cannot update status to DCB"}, 312 {0x0130, "Invalid stripe handle"}, 313 {0x0131, "Handle that was not locked"}, 314 {0x0132, "Handle that was not empy"}, 315 {0x0133, "Handle has different owner"}, 316 {0x0140, "IPR has parent"}, 317 {0x0150, "Illegal Pbuf address alignment"}, 318 {0x0151, "Illegal Pbuf transfer length"}, 319 {0x0152, "Illegal Sbuf address alignment"}, 320 {0x0153, "Illegal Sbuf transfer length"}, 321 {0x0160, "Command packet too large"}, 322 {0x0161, "SGL exceeds maximum length"}, 323 {0x0162, "SGL has too many entries"}, 324 {0x0170, "Insufficient resources for rebuilder"}, 325 {0x0171, "Verify error (data != parity)"}, 326 {0x0180, "Requested segment not in directory of this DCB"}, 327 {0x0181, "DCB segment has unsupported version"}, 328 {0x0182, "DCB segment has checksum error"}, 329 {0x0183, "DCB support (settings) segment invalid"}, 330 {0x0184, "DCB UDB (unit descriptor block) segment invalid"}, 331 {0x0185, "DCB GUID (globally unique identifier) segment invalid"}, 332 {0x01A0, "Could not clear Sbuf"}, 333 {0x01C0, "Flash identify failed"}, 334 {0x01C1, "Flash out of bounds"}, 335 {0x01C2, "Flash verify error"}, 336 {0x01C3, "Flash file object not found"}, 337 {0x01C4, "Flash file already present"}, 338 {0x01C5, "Flash file system full"}, 339 {0x01C6, "Flash file not present"}, 340 {0x01C7, "Flash file size error"}, 341 {0x01C8, "Bad flash file checksum"}, 342 {0x01CA, "Corrupt flash file system detected"}, 343 {0x01D0, "Invalid field in parameter list"}, 344 {0x01D1, "Parameter list length error"}, 345 {0x01D2, "Parameter item is not changeable"}, 346 {0x01D3, "Parameter item is not saveable"}, 347 {0x0200, "UDMA CRC error"}, 348 {0x0201, "Internal CRC error"}, 349 {0x0202, "Data ECC error"}, 350 {0x0203, "ADP level 1 error"}, 351 {0x0204, "Port timeout"}, 352 {0x0205, "Drive power on reset"}, 353 {0x0206, "ADP level 2 error"}, 354 {0x0207, "Soft reset failed"}, 355 {0x0208, "Drive not ready"}, 356 {0x0209, "Unclassified port error"}, 357 {0x020A, "Drive aborted command"}, 358 {0x0210, "Internal CRC error"}, 359 {0x0211, "Host PCI bus abort"}, 360 {0x0212, "Host PCI parity error"}, 361 {0x0213, "Port handler error"}, 362 {0x0214, "Token interrupt count error"}, 363 {0x0215, "Timeout waiting for PCI transfer"}, 364 {0x0216, "Corrected buffer ECC"}, 365 {0x0217, "Uncorrected buffer ECC"}, 366 {0x0230, "Unsupported command during flash recovery"}, 367 {0x0231, "Next image buffer expected"}, 368 {0x0232, "Binary image architecture incompatible"}, 369 {0x0233, "Binary image has no signature"}, 370 {0x0234, "Binary image has bad checksum"}, 371 {0x0235, "Image downloaded overflowed buffer"}, 372 {0x0240, "I2C device not found"}, 373 {0x0241, "I2C transaction aborted"}, 374 {0x0242, "SO-DIMM parameter(s) incompatible using defaults"}, 375 {0x0243, "SO-DIMM unsupported"}, 376 {0x0248, "SPI transfer status error"}, 377 {0x0249, "SPI transfer timeout error"}, 378 {0x0250, "Invalid unit descriptor size in CreateUnit"}, 379 {0x0251, "Unit descriptor size exceeds data buffer in CreateUnit"}, 380 {0x0252, "Invalid value in CreateUnit descriptor"}, 381 {0x0253, "Inadequate disk space to support descriptor in CreateUnit"}, 382 {0x0254, "Unable to create data channel for this unit descriptor"}, 383 {0x0255, "CreateUnit descriptor specifies a drive already in use"}, 384 {0x0256, "Unable to write configuration to all disks during CreateUnit"}, 385 {0x0257, "CreateUnit does not support this descriptor version"}, 386 {0x0258, "Invalid subunit for RAID 0 or 5 in CreateUnit"}, 387 {0x0259, "Too many descriptors in CreateUnit"}, 388 {0x025A, "Invalid configuration specified in CreateUnit descriptor"}, 389 {0x025B, "Invalid LBA offset specified in CreateUnit descriptor"}, 390 {0x025C, "Invalid stripelet size specified in CreateUnit descriptor"}, 391 {0x0260, "SMART attribute exceeded threshold"}, 392 {0xFFFFFFFF, (char *)NULL} 393 }; 394 395 struct twa_pci_identity { 396 uint32_t vendor_id; 397 uint32_t product_id; 398 const char *name; 399 }; 400 401 static const struct twa_pci_identity pci_twa_products[] = { 402 { PCI_VENDOR_3WARE, 403 PCI_PRODUCT_3WARE_9000, 404 "3ware 9000 series", 405 }, 406 { PCI_VENDOR_3WARE, 407 PCI_PRODUCT_3WARE_9550, 408 "3ware 9550SX series", 409 }, 410 { 0, 411 0, 412 NULL, 413 }, 414 }; 415 416 417 static inline void 418 twa_outl(struct twa_softc *sc, int off, uint32_t val) 419 { 420 421 bus_space_write_4(sc->twa_bus_iot, sc->twa_bus_ioh, off, val); 422 bus_space_barrier(sc->twa_bus_iot, sc->twa_bus_ioh, off, 4, 423 BUS_SPACE_BARRIER_WRITE); 424 } 425 426 static inline uint32_t twa_inl(struct twa_softc *sc, int off) 427 { 428 429 bus_space_barrier(sc->twa_bus_iot, sc->twa_bus_ioh, off, 4, 430 BUS_SPACE_BARRIER_WRITE | BUS_SPACE_BARRIER_READ); 431 return (bus_space_read_4(sc->twa_bus_iot, sc->twa_bus_ioh, off)); 432 } 433 434 void 435 twa_request_wait_handler(struct twa_request *tr) 436 { 437 438 wakeup(tr); 439 } 440 441 static int 442 twa_match(struct device *parent, struct cfdata *cfdata, 443 void *aux) 444 { 445 int i; 446 struct pci_attach_args *pa = aux; 447 const struct twa_pci_identity *entry = 0; 448 449 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_3WARE) { 450 for (i = 0; (pci_twa_products[i].product_id); i++) { 451 entry = &pci_twa_products[i]; 452 if (entry->product_id == PCI_PRODUCT(pa->pa_id)) { 453 aprint_normal("%s: (rev. 0x%02x)\n", 454 entry->name, PCI_REVISION(pa->pa_class)); 455 return (1); 456 } 457 } 458 } 459 return (0); 460 } 461 462 static const char * 463 twa_find_msg_string(const struct twa_message *table, uint16_t code) 464 { 465 int i; 466 467 for (i = 0; table[i].message != NULL; i++) 468 if (table[i].code == code) 469 return(table[i].message); 470 471 return(table[i].message); 472 } 473 474 void 475 twa_release_request(struct twa_request *tr) 476 { 477 int s; 478 struct twa_softc *sc; 479 480 sc = tr->tr_sc; 481 482 if ((tr->tr_flags & TWA_CMD_AEN) == 0) { 483 s = splbio(); 484 TAILQ_INSERT_TAIL(&tr->tr_sc->twa_free, tr, tr_link); 485 splx(s); 486 if (__predict_false((tr->tr_sc->twa_sc_flags & 487 TWA_STATE_REQUEST_WAIT) != 0)) { 488 tr->tr_sc->twa_sc_flags &= ~TWA_STATE_REQUEST_WAIT; 489 wakeup(&sc->twa_free); 490 } 491 } else 492 tr->tr_flags &= ~TWA_CMD_AEN_BUSY; 493 } 494 495 static void 496 twa_unmap_request(struct twa_request *tr) 497 { 498 struct twa_softc *sc = tr->tr_sc; 499 uint8_t cmd_status; 500 int s; 501 502 /* If the command involved data, unmap that too. */ 503 if (tr->tr_data != NULL) { 504 if (tr->tr_cmd_pkt_type & TWA_CMD_PKT_TYPE_9K) 505 cmd_status = tr->tr_command->command.cmd_pkt_9k.status; 506 else 507 cmd_status = 508 tr->tr_command->command.cmd_pkt_7k.generic.status; 509 510 if (tr->tr_flags & TWA_CMD_DATA_OUT) { 511 bus_dmamap_sync(tr->tr_sc->twa_dma_tag, tr->tr_dma_map, 512 0, tr->tr_length, BUS_DMASYNC_POSTREAD); 513 /* 514 * If we are using a bounce buffer, and we are reading 515 * data, copy the real data in. 516 */ 517 if (tr->tr_flags & TWA_CMD_DATA_COPY_NEEDED) 518 if (cmd_status == 0) 519 memcpy(tr->tr_real_data, tr->tr_data, 520 tr->tr_real_length); 521 } 522 if (tr->tr_flags & TWA_CMD_DATA_IN) 523 bus_dmamap_sync(tr->tr_sc->twa_dma_tag, tr->tr_dma_map, 524 0, tr->tr_length, BUS_DMASYNC_POSTWRITE); 525 526 bus_dmamap_unload(sc->twa_dma_tag, tr->tr_dma_map); 527 } 528 529 /* Free alignment buffer if it was used. */ 530 if (tr->tr_flags & TWA_CMD_DATA_COPY_NEEDED) { 531 s = splvm(); 532 uvm_km_free(kmem_map, (vaddr_t)tr->tr_data, 533 tr->tr_length, UVM_KMF_WIRED); 534 splx(s); 535 tr->tr_data = tr->tr_real_data; 536 tr->tr_length = tr->tr_real_length; 537 } 538 } 539 540 /* 541 * Function name: twa_wait_request 542 * Description: Sends down a firmware cmd, and waits for the completion, 543 * but NOT in a tight loop. 544 * 545 * Input: tr -- ptr to request pkt 546 * timeout -- max # of seconds to wait before giving up 547 * Output: None 548 * Return value: 0 -- success 549 * non-zero-- failure 550 */ 551 static int 552 twa_wait_request(struct twa_request *tr, uint32_t timeout) 553 { 554 time_t end_time; 555 struct timeval t1; 556 int s, rv; 557 558 tr->tr_flags |= TWA_CMD_SLEEP_ON_REQUEST; 559 tr->tr_callback = twa_request_wait_handler; 560 tr->tr_status = TWA_CMD_BUSY; 561 562 rv = twa_map_request(tr); 563 564 if (rv != 0) 565 return (rv); 566 567 microtime(&t1); 568 end_time = t1.tv_usec + 569 (timeout * 1000 * 100); 570 571 while (tr->tr_status != TWA_CMD_COMPLETE) { 572 rv = tr->tr_error; 573 if (rv != 0) 574 return(rv); 575 if ((rv = tsleep(tr, PRIBIO, "twawait", timeout * hz)) == 0) 576 break; 577 578 if (rv == EWOULDBLOCK) { 579 /* 580 * We will reset the controller only if the request has 581 * already been submitted, so as to not lose the 582 * request packet. If a busy request timed out, the 583 * reset will take care of freeing resources. If a 584 * pending request timed out, we will free resources 585 * for that request, right here. So, the caller is 586 * expected to NOT cleanup when ETIMEDOUT is returned. 587 */ 588 if (tr->tr_status == TWA_CMD_BUSY) 589 twa_reset(tr->tr_sc); 590 else { 591 /* Request was never submitted. Clean up. */ 592 s = splbio(); 593 TAILQ_REMOVE(&tr->tr_sc->twa_pending, tr, 594 tr_link); 595 splx(s); 596 597 twa_unmap_request(tr); 598 if (tr->tr_data) 599 free(tr->tr_data, M_DEVBUF); 600 601 twa_release_request(tr); 602 } 603 return(ETIMEDOUT); 604 } 605 /* 606 * Either the request got completed, or we were woken up by a 607 * signal. Calculate the new timeout, in case it was the 608 * latter. 609 */ 610 microtime(&t1); 611 612 timeout = (end_time - t1.tv_usec) / (1000 * 100); 613 } 614 return(rv); 615 } 616 617 /* 618 * Function name: twa_immediate_request 619 * Description: Sends down a firmware cmd, and waits for the completion 620 * in a tight loop. 621 * 622 * Input: tr -- ptr to request pkt 623 * timeout -- max # of seconds to wait before giving up 624 * Output: None 625 * Return value: 0 -- success 626 * non-zero-- failure 627 */ 628 static int 629 twa_immediate_request(struct twa_request *tr, uint32_t timeout) 630 { 631 struct timeval t1; 632 int s = 0, rv = 0; 633 634 rv = twa_map_request(tr); 635 636 if (rv != 0) 637 return(rv); 638 639 timeout = (timeout * 10000 * 10); 640 641 microtime(&t1); 642 643 timeout += t1.tv_usec; 644 645 do { 646 rv = tr->tr_error; 647 if (rv != 0) 648 return(rv); 649 s = splbio(); 650 twa_done(tr->tr_sc); 651 splx(s); 652 if (tr->tr_status == TWA_CMD_COMPLETE) 653 return(rv); 654 microtime(&t1); 655 } while (t1.tv_usec <= timeout); 656 657 /* 658 * We will reset the controller only if the request has 659 * already been submitted, so as to not lose the 660 * request packet. If a busy request timed out, the 661 * reset will take care of freeing resources. If a 662 * pending request timed out, we will free resources 663 * for that request, right here. So, the caller is 664 * expected to NOT cleanup when ETIMEDOUT is returned. 665 */ 666 rv = ETIMEDOUT; 667 668 if (tr->tr_status == TWA_CMD_BUSY) 669 twa_reset(tr->tr_sc); 670 else { 671 /* Request was never submitted. Clean up. */ 672 s = splbio(); 673 TAILQ_REMOVE(&tr->tr_sc->twa_pending, tr, tr_link); 674 splx(s); 675 twa_unmap_request(tr); 676 if (tr->tr_data) 677 free(tr->tr_data, M_DEVBUF); 678 679 twa_release_request(tr); 680 } 681 return (rv); 682 } 683 684 static int 685 twa_inquiry(struct twa_request *tr, int lunid) 686 { 687 int error; 688 struct twa_command_9k *tr_9k_cmd; 689 690 if (tr->tr_data == NULL) 691 return (ENOMEM); 692 693 memset(tr->tr_data, 0, TWA_SECTOR_SIZE); 694 695 tr->tr_length = TWA_SECTOR_SIZE; 696 tr->tr_cmd_pkt_type = TWA_CMD_PKT_TYPE_9K; 697 tr->tr_flags |= TWA_CMD_DATA_IN; 698 699 tr_9k_cmd = &tr->tr_command->command.cmd_pkt_9k; 700 701 tr_9k_cmd->command.opcode = TWA_OP_EXECUTE_SCSI_COMMAND; 702 tr_9k_cmd->unit = lunid; 703 tr_9k_cmd->request_id = tr->tr_request_id; 704 tr_9k_cmd->status = 0; 705 tr_9k_cmd->sgl_offset = 16; 706 tr_9k_cmd->sgl_entries = 1; 707 /* create the CDB here */ 708 tr_9k_cmd->cdb[0] = INQUIRY; 709 tr_9k_cmd->cdb[1] = ((lunid << 5) & 0x0e); 710 tr_9k_cmd->cdb[4] = 255; 711 712 /* XXXX setup page data no lun device 713 * it seems 9000 series does not indicate 714 * NOTPRESENT - need more investigation 715 */ 716 ((struct scsipi_inquiry_data *)tr->tr_data)->device = 717 SID_QUAL_LU_NOTPRESENT; 718 719 error = twa_immediate_request(tr, TWA_REQUEST_TIMEOUT_PERIOD); 720 721 if (error != 0) 722 return (error); 723 724 if (((struct scsipi_inquiry_data *)tr->tr_data)->device == 725 SID_QUAL_LU_NOTPRESENT) 726 error = 1; 727 728 return (error); 729 } 730 731 static int 732 twa_print_inquiry_data(struct twa_softc *sc, struct scsipi_inquiry_data *scsipi) 733 { 734 735 printf("%s: %s\n", device_xname(&sc->twa_dv), scsipi->vendor); 736 737 return (1); 738 } 739 740 741 static uint64_t 742 twa_read_capacity(struct twa_request *tr, int lunid) 743 { 744 int error; 745 struct twa_command_9k *tr_9k_cmd; 746 uint64_t array_size = 0LL; 747 748 if (tr->tr_data == NULL) 749 return (ENOMEM); 750 751 memset(tr->tr_data, 0, TWA_SECTOR_SIZE); 752 753 tr->tr_length = TWA_SECTOR_SIZE; 754 tr->tr_cmd_pkt_type = TWA_CMD_PKT_TYPE_9K; 755 tr->tr_flags |= TWA_CMD_DATA_OUT; 756 757 tr_9k_cmd = &tr->tr_command->command.cmd_pkt_9k; 758 759 tr_9k_cmd->command.opcode = TWA_OP_EXECUTE_SCSI_COMMAND; 760 tr_9k_cmd->unit = lunid; 761 tr_9k_cmd->request_id = tr->tr_request_id; 762 tr_9k_cmd->status = 0; 763 tr_9k_cmd->sgl_offset = 16; 764 tr_9k_cmd->sgl_entries = 1; 765 /* create the CDB here */ 766 tr_9k_cmd->cdb[0] = READ_CAPACITY_16; 767 tr_9k_cmd->cdb[1] = ((lunid << 5) & 0x0e) | SRC16_SERVICE_ACTION; 768 769 error = twa_immediate_request(tr, TWA_REQUEST_TIMEOUT_PERIOD); 770 771 if (error == 0) { 772 #if BYTE_ORDER == BIG_ENDIAN 773 array_size = bswap64(_8btol( 774 ((struct scsipi_read_capacity_16_data *)tr->tr_data->addr) + 1); 775 #else 776 array_size = _8btol(((struct scsipi_read_capacity_16_data *) 777 tr->tr_data)->addr) + 1; 778 #endif 779 } 780 return (array_size); 781 } 782 783 static int 784 twa_request_sense(struct twa_request *tr, int lunid) 785 { 786 int error = 1; 787 struct twa_command_9k *tr_9k_cmd; 788 789 if (tr->tr_data == NULL) 790 return (error); 791 792 memset(tr->tr_data, 0, TWA_SECTOR_SIZE); 793 794 tr->tr_length = TWA_SECTOR_SIZE; 795 tr->tr_cmd_pkt_type = TWA_CMD_PKT_TYPE_9K; 796 tr->tr_flags |= TWA_CMD_DATA_OUT; 797 798 tr_9k_cmd = &tr->tr_command->command.cmd_pkt_9k; 799 800 tr_9k_cmd->command.opcode = TWA_OP_EXECUTE_SCSI_COMMAND; 801 tr_9k_cmd->unit = lunid; 802 tr_9k_cmd->request_id = tr->tr_request_id; 803 tr_9k_cmd->status = 0; 804 tr_9k_cmd->sgl_offset = 16; 805 tr_9k_cmd->sgl_entries = 1; 806 /* create the CDB here */ 807 tr_9k_cmd->cdb[0] = SCSI_REQUEST_SENSE; 808 tr_9k_cmd->cdb[1] = ((lunid << 5) & 0x0e); 809 tr_9k_cmd->cdb[4] = 255; 810 811 /*XXX AEN notification called in interrupt context 812 * so just queue the request. Return as quickly 813 * as possible from interrupt 814 */ 815 if ((tr->tr_flags & TWA_CMD_AEN) != 0) 816 error = twa_map_request(tr); 817 else 818 error = twa_immediate_request(tr, TWA_REQUEST_TIMEOUT_PERIOD); 819 820 return (error); 821 } 822 823 static int 824 twa_alloc_req_pkts(struct twa_softc *sc, int num_reqs) 825 { 826 struct twa_request *tr; 827 struct twa_command_packet *tc; 828 bus_dma_segment_t seg; 829 size_t max_segs, max_xfer; 830 int i, rv, rseg, size; 831 832 if ((sc->twa_req_buf = malloc(num_reqs * sizeof(struct twa_request), 833 M_DEVBUF, M_NOWAIT)) == NULL) 834 return(ENOMEM); 835 836 size = num_reqs * sizeof(struct twa_command_packet); 837 838 /* Allocate memory for cmd pkts. */ 839 if ((rv = bus_dmamem_alloc(sc->twa_dma_tag, 840 size, PAGE_SIZE, 0, &seg, 841 1, &rseg, BUS_DMA_NOWAIT)) != 0){ 842 aprint_error_dev(&sc->twa_dv, "unable to allocate " 843 "command packets, rv = %d\n", rv); 844 return (ENOMEM); 845 } 846 847 if ((rv = bus_dmamem_map(sc->twa_dma_tag, 848 &seg, rseg, size, (void **)&sc->twa_cmds, 849 BUS_DMA_NOWAIT | BUS_DMA_COHERENT)) != 0) { 850 aprint_error_dev(&sc->twa_dv, "unable to map commands, rv = %d\n", rv); 851 return (1); 852 } 853 854 if ((rv = bus_dmamap_create(sc->twa_dma_tag, 855 size, num_reqs, size, 856 0, BUS_DMA_NOWAIT, &sc->twa_cmd_map)) != 0) { 857 aprint_error_dev(&sc->twa_dv, "unable to create command DMA map, " 858 "rv = %d\n", rv); 859 return (ENOMEM); 860 } 861 862 if ((rv = bus_dmamap_load(sc->twa_dma_tag, sc->twa_cmd_map, 863 sc->twa_cmds, size, NULL, 864 BUS_DMA_NOWAIT)) != 0) { 865 aprint_error_dev(&sc->twa_dv, "unable to load command DMA map, " 866 "rv = %d\n", rv); 867 return (1); 868 } 869 870 if ((uintptr_t)sc->twa_cmds % TWA_ALIGNMENT) { 871 aprint_error_dev(&sc->twa_dv, "DMA map memory not aligned on %d boundary\n", TWA_ALIGNMENT); 872 873 return (1); 874 } 875 tc = sc->twa_cmd_pkt_buf = (struct twa_command_packet *)sc->twa_cmds; 876 sc->twa_cmd_pkt_phys = sc->twa_cmd_map->dm_segs[0].ds_addr; 877 878 memset(sc->twa_req_buf, 0, num_reqs * sizeof(struct twa_request)); 879 memset(sc->twa_cmd_pkt_buf, 0, 880 num_reqs * sizeof(struct twa_command_packet)); 881 882 sc->sc_twa_request = sc->twa_req_buf; 883 max_segs = twa_get_maxsegs(); 884 max_xfer = twa_get_maxxfer(max_segs); 885 886 for (i = 0; i < num_reqs; i++, tc++) { 887 tr = &(sc->twa_req_buf[i]); 888 tr->tr_command = tc; 889 tr->tr_cmd_phys = sc->twa_cmd_pkt_phys + 890 (i * sizeof(struct twa_command_packet)); 891 tr->tr_request_id = i; 892 tr->tr_sc = sc; 893 894 /* 895 * Create a map for data buffers. maxsize (256 * 1024) used in 896 * bus_dma_tag_create above should suffice the bounce page needs 897 * for data buffers, since the max I/O size we support is 128KB. 898 * If we supported I/O's bigger than 256KB, we would have to 899 * create a second dma_tag, with the appropriate maxsize. 900 */ 901 if ((rv = bus_dmamap_create(sc->twa_dma_tag, 902 max_xfer, max_segs, 1, 0, BUS_DMA_NOWAIT, 903 &tr->tr_dma_map)) != 0) { 904 aprint_error_dev(&sc->twa_dv, "unable to create command " 905 "DMA map, rv = %d\n", rv); 906 return (ENOMEM); 907 } 908 /* Insert request into the free queue. */ 909 if (i != 0) { 910 sc->twa_lookup[i] = tr; 911 twa_release_request(tr); 912 } else 913 tr->tr_flags |= TWA_CMD_AEN; 914 } 915 return(0); 916 } 917 918 static void 919 twa_recompute_openings(struct twa_softc *sc) 920 { 921 struct twa_drive *td; 922 int unit; 923 int openings; 924 925 if (sc->sc_nunits != 0) 926 openings = ((TWA_Q_LENGTH / 2) / sc->sc_nunits); 927 else 928 openings = 0; 929 if (openings == sc->sc_openings) 930 return; 931 sc->sc_openings = openings; 932 933 #ifdef TWA_DEBUG 934 printf("%s: %d array%s, %d openings per array\n", 935 device_xname(&sc->twa_dv), sc->sc_nunits, 936 sc->sc_nunits == 1 ? "" : "s", sc->sc_openings); 937 #endif 938 for (unit = 0; unit < TWA_MAX_UNITS; unit++) { 939 td = &sc->sc_units[unit]; 940 if (td->td_dev != NULL) 941 (*td->td_callbacks->tcb_openings)(td->td_dev, 942 sc->sc_openings); 943 } 944 } 945 946 static int 947 twa_request_bus_scan(struct twa_softc *sc) 948 { 949 struct twa_drive *td; 950 struct twa_request *tr; 951 struct twa_attach_args twaa; 952 int locs[TWACF_NLOCS]; 953 int s, unit; 954 955 s = splbio(); 956 for (unit = 0; unit < TWA_MAX_UNITS; unit++) { 957 958 if ((tr = twa_get_request(sc, 0)) == NULL) { 959 splx(s); 960 return (EIO); 961 } 962 963 tr->tr_cmd_pkt_type |= TWA_CMD_PKT_TYPE_INTERNAL; 964 965 tr->tr_data = malloc(TWA_SECTOR_SIZE, M_DEVBUF, M_NOWAIT); 966 967 if (tr->tr_data == NULL) { 968 twa_release_request(tr); 969 splx(s); 970 return (ENOMEM); 971 } 972 td = &sc->sc_units[unit]; 973 974 if (twa_inquiry(tr, unit) == 0) { 975 if (td->td_dev == NULL) { 976 twa_print_inquiry_data(sc, 977 ((struct scsipi_inquiry_data *)tr->tr_data)); 978 979 sc->sc_nunits++; 980 981 sc->sc_units[unit].td_size = 982 twa_read_capacity(tr, unit); 983 984 twaa.twaa_unit = unit; 985 986 twa_recompute_openings(sc); 987 988 locs[TWACF_UNIT] = unit; 989 990 sc->sc_units[unit].td_dev = 991 config_found_sm_loc(&sc->twa_dv, "twa", 992 locs, &twaa, twa_print, config_stdsubmatch); 993 } 994 } else { 995 if (td->td_dev != NULL) { 996 sc->sc_nunits--; 997 998 (void) config_detach(td->td_dev, DETACH_FORCE); 999 td->td_dev = NULL; 1000 td->td_size = 0; 1001 1002 twa_recompute_openings(sc); 1003 } 1004 } 1005 free(tr->tr_data, M_DEVBUF); 1006 1007 twa_release_request(tr); 1008 } 1009 splx(s); 1010 1011 return (0); 1012 } 1013 1014 1015 #ifdef DIAGNOSTIC 1016 static inline void 1017 twa_check_busy_q(struct twa_request *tr) 1018 { 1019 struct twa_request *rq; 1020 struct twa_softc *sc = tr->tr_sc; 1021 1022 TAILQ_FOREACH(rq, &sc->twa_busy, tr_link) { 1023 if (tr->tr_request_id == rq->tr_request_id) { 1024 panic("cannot submit same request more than once"); 1025 } else if (tr->bp == rq->bp && tr->bp != 0) { 1026 /* XXX A check for 0 for the buf ptr is needed to 1027 * guard against ioctl requests with a buf ptr of 1028 * 0 and also aen notifications. Looking for 1029 * external cmds only. 1030 */ 1031 panic("cannot submit same buf more than once"); 1032 } else { 1033 /* Empty else statement */ 1034 } 1035 } 1036 } 1037 #endif 1038 1039 static int 1040 twa_start(struct twa_request *tr) 1041 { 1042 struct twa_softc *sc = tr->tr_sc; 1043 uint32_t status_reg; 1044 int s; 1045 int error; 1046 1047 s = splbio(); 1048 /* Check to see if we can post a command. */ 1049 status_reg = twa_inl(sc, TWA_STATUS_REGISTER_OFFSET); 1050 if ((error = twa_check_ctlr_state(sc, status_reg))) 1051 goto out; 1052 1053 if (status_reg & TWA_STATUS_COMMAND_QUEUE_FULL) { 1054 if (tr->tr_status != TWA_CMD_PENDING) { 1055 tr->tr_status = TWA_CMD_PENDING; 1056 TAILQ_INSERT_TAIL(&tr->tr_sc->twa_pending, 1057 tr, tr_link); 1058 } 1059 twa_outl(sc, TWA_CONTROL_REGISTER_OFFSET, 1060 TWA_CONTROL_UNMASK_COMMAND_INTERRUPT); 1061 error = EBUSY; 1062 } else { 1063 bus_dmamap_sync(sc->twa_dma_tag, sc->twa_cmd_map, 1064 (char *)tr->tr_command - (char *)sc->twa_cmds, 1065 sizeof(struct twa_command_packet), 1066 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 1067 1068 /* Cmd queue is not full. Post the command. */ 1069 TWA_WRITE_COMMAND_QUEUE(sc, tr->tr_cmd_phys + 1070 sizeof(struct twa_command_header)); 1071 1072 /* Mark the request as currently being processed. */ 1073 tr->tr_status = TWA_CMD_BUSY; 1074 1075 #ifdef DIAGNOSTIC 1076 twa_check_busy_q(tr); 1077 #endif 1078 1079 /* Move the request into the busy queue. */ 1080 TAILQ_INSERT_TAIL(&tr->tr_sc->twa_busy, tr, tr_link); 1081 } 1082 out: 1083 splx(s); 1084 return(error); 1085 } 1086 1087 static int 1088 twa_drain_response_queue(struct twa_softc *sc) 1089 { 1090 union twa_response_queue rq; 1091 uint32_t status_reg; 1092 1093 for (;;) { 1094 status_reg = twa_inl(sc, TWA_STATUS_REGISTER_OFFSET); 1095 if (twa_check_ctlr_state(sc, status_reg)) 1096 return(1); 1097 if (status_reg & TWA_STATUS_RESPONSE_QUEUE_EMPTY) 1098 return(0); /* no more response queue entries */ 1099 rq = (union twa_response_queue)twa_inl(sc, 1100 TWA_RESPONSE_QUEUE_OFFSET); 1101 } 1102 } 1103 1104 static void 1105 twa_drain_busy_queue(struct twa_softc *sc) 1106 { 1107 struct twa_request *tr; 1108 1109 /* Walk the busy queue. */ 1110 1111 while ((tr = TAILQ_FIRST(&sc->twa_busy)) != NULL) { 1112 TAILQ_REMOVE(&sc->twa_busy, tr, tr_link); 1113 1114 twa_unmap_request(tr); 1115 if ((tr->tr_cmd_pkt_type & TWA_CMD_PKT_TYPE_INTERNAL) || 1116 (tr->tr_cmd_pkt_type & TWA_CMD_PKT_TYPE_IOCTL)) { 1117 /* It's an internal/ioctl request. Simply free it. */ 1118 if (tr->tr_data) 1119 free(tr->tr_data, M_DEVBUF); 1120 twa_release_request(tr); 1121 } else { 1122 /* It's a SCSI request. Complete it. */ 1123 tr->tr_command->command.cmd_pkt_9k.status = EIO; 1124 if (tr->tr_callback) 1125 tr->tr_callback(tr); 1126 } 1127 } 1128 } 1129 1130 static int 1131 twa_drain_pending_queue(struct twa_softc *sc) 1132 { 1133 struct twa_request *tr; 1134 int s, error = 0; 1135 1136 /* 1137 * Pull requests off the pending queue, and submit them. 1138 */ 1139 s = splbio(); 1140 while ((tr = TAILQ_FIRST(&sc->twa_pending)) != NULL) { 1141 TAILQ_REMOVE(&sc->twa_pending, tr, tr_link); 1142 1143 if ((error = twa_start(tr))) { 1144 if (error == EBUSY) { 1145 tr->tr_status = TWA_CMD_PENDING; 1146 1147 /* queue at the head */ 1148 TAILQ_INSERT_HEAD(&tr->tr_sc->twa_pending, 1149 tr, tr_link); 1150 error = 0; 1151 break; 1152 } else { 1153 if (tr->tr_flags & TWA_CMD_SLEEP_ON_REQUEST) { 1154 tr->tr_error = error; 1155 tr->tr_callback(tr); 1156 error = EIO; 1157 } 1158 } 1159 } 1160 } 1161 splx(s); 1162 1163 return(error); 1164 } 1165 1166 static int 1167 twa_drain_aen_queue(struct twa_softc *sc) 1168 { 1169 int s, error = 0; 1170 struct twa_request *tr; 1171 struct twa_command_header *cmd_hdr; 1172 struct timeval t1; 1173 uint32_t timeout; 1174 1175 for (;;) { 1176 if ((tr = twa_get_request(sc, 0)) == NULL) { 1177 error = EIO; 1178 break; 1179 } 1180 tr->tr_cmd_pkt_type |= TWA_CMD_PKT_TYPE_INTERNAL; 1181 tr->tr_callback = NULL; 1182 1183 tr->tr_data = malloc(TWA_SECTOR_SIZE, M_DEVBUF, M_NOWAIT); 1184 1185 if (tr->tr_data == NULL) { 1186 error = 1; 1187 goto out; 1188 } 1189 1190 if (twa_request_sense(tr, 0) != 0) { 1191 error = 1; 1192 break; 1193 } 1194 1195 timeout = (1000/*ms*/ * 100/*us*/ * TWA_REQUEST_TIMEOUT_PERIOD); 1196 1197 microtime(&t1); 1198 1199 timeout += t1.tv_usec; 1200 1201 do { 1202 s = splbio(); 1203 twa_done(tr->tr_sc); 1204 splx(s); 1205 if (tr->tr_status != TWA_CMD_BUSY) 1206 break; 1207 microtime(&t1); 1208 } while (t1.tv_usec <= timeout); 1209 1210 if (tr->tr_status != TWA_CMD_COMPLETE) { 1211 error = ETIMEDOUT; 1212 break; 1213 } 1214 1215 if ((error = tr->tr_command->command.cmd_pkt_9k.status)) 1216 break; 1217 1218 cmd_hdr = (struct twa_command_header *)(tr->tr_data); 1219 if ((cmd_hdr->status_block.error) /* aen_code */ 1220 == TWA_AEN_QUEUE_EMPTY) 1221 break; 1222 (void)twa_enqueue_aen(sc, cmd_hdr); 1223 1224 free(tr->tr_data, M_DEVBUF); 1225 twa_release_request(tr); 1226 } 1227 out: 1228 if (tr) { 1229 if (tr->tr_data) 1230 free(tr->tr_data, M_DEVBUF); 1231 1232 twa_release_request(tr); 1233 } 1234 return(error); 1235 } 1236 1237 1238 #ifdef DIAGNOSTIC 1239 static void 1240 twa_check_response_q(struct twa_request *tr, int clear) 1241 { 1242 int j; 1243 static int i = 0; 1244 static struct twa_request *req = 0; 1245 static struct buf *hist[255]; 1246 1247 1248 if (clear) { 1249 i = 0; 1250 for (j = 0; j < 255; j++) 1251 hist[j] = 0; 1252 return; 1253 } 1254 1255 if (req == 0) 1256 req = tr; 1257 1258 if ((tr->tr_cmd_pkt_type & TWA_CMD_PKT_TYPE_EXTERNAL) != 0) { 1259 if (req->tr_request_id == tr->tr_request_id) 1260 panic("req id: %d on controller queue twice", 1261 tr->tr_request_id); 1262 1263 for (j = 0; j < i; j++) 1264 if (tr->bp == hist[j]) 1265 panic("req id: %d buf found twice", 1266 tr->tr_request_id); 1267 } 1268 req = tr; 1269 1270 hist[i++] = req->bp; 1271 } 1272 #endif 1273 1274 static int 1275 twa_done(struct twa_softc *sc) 1276 { 1277 union twa_response_queue rq; 1278 struct twa_request *tr; 1279 int rv = 0; 1280 uint32_t status_reg; 1281 1282 for (;;) { 1283 status_reg = twa_inl(sc, TWA_STATUS_REGISTER_OFFSET); 1284 if ((rv = twa_check_ctlr_state(sc, status_reg))) 1285 break; 1286 if (status_reg & TWA_STATUS_RESPONSE_QUEUE_EMPTY) 1287 break; 1288 /* Response queue is not empty. */ 1289 rq = (union twa_response_queue)twa_inl(sc, 1290 TWA_RESPONSE_QUEUE_OFFSET); 1291 tr = sc->sc_twa_request + rq.u.response_id; 1292 #ifdef DIAGNOSTIC 1293 twa_check_response_q(tr, 0); 1294 #endif 1295 /* Unmap the command packet, and any associated data buffer. */ 1296 twa_unmap_request(tr); 1297 1298 tr->tr_status = TWA_CMD_COMPLETE; 1299 TAILQ_REMOVE(&tr->tr_sc->twa_busy, tr, tr_link); 1300 1301 if (tr->tr_callback) 1302 tr->tr_callback(tr); 1303 } 1304 (void)twa_drain_pending_queue(sc); 1305 1306 #ifdef DIAGNOSTIC 1307 twa_check_response_q(NULL, 1); 1308 #endif 1309 return(rv); 1310 } 1311 1312 /* 1313 * Function name: twa_init_ctlr 1314 * Description: Establishes a logical connection with the controller. 1315 * If bundled with firmware, determines whether or not 1316 * to flash firmware, based on arch_id, fw SRL (Spec. 1317 * Revision Level), branch & build #'s. Also determines 1318 * whether or not the driver is compatible with the 1319 * firmware on the controller, before proceeding to work 1320 * with it. 1321 * 1322 * Input: sc -- ptr to per ctlr structure 1323 * Output: None 1324 * Return value: 0 -- success 1325 * non-zero-- failure 1326 */ 1327 static int 1328 twa_init_ctlr(struct twa_softc *sc) 1329 { 1330 uint16_t fw_on_ctlr_srl = 0; 1331 uint16_t fw_on_ctlr_arch_id = 0; 1332 uint16_t fw_on_ctlr_branch = 0; 1333 uint16_t fw_on_ctlr_build = 0; 1334 uint32_t init_connect_result = 0; 1335 int error = 0; 1336 #if 0 1337 int8_t fw_flashed = FALSE; 1338 int8_t fw_flash_failed = FALSE; 1339 #endif 1340 1341 /* Wait for the controller to become ready. */ 1342 if (twa_wait_status(sc, TWA_STATUS_MICROCONTROLLER_READY, 1343 TWA_REQUEST_TIMEOUT_PERIOD)) { 1344 return(ENXIO); 1345 } 1346 /* Drain the response queue. */ 1347 if (twa_drain_response_queue(sc)) 1348 return(1); 1349 1350 /* Establish a logical connection with the controller. */ 1351 if ((error = twa_init_connection(sc, TWA_INIT_MESSAGE_CREDITS, 1352 TWA_EXTENDED_INIT_CONNECT, TWA_CURRENT_FW_SRL, 1353 TWA_9000_ARCH_ID, TWA_CURRENT_FW_BRANCH, 1354 TWA_CURRENT_FW_BUILD, &fw_on_ctlr_srl, 1355 &fw_on_ctlr_arch_id, &fw_on_ctlr_branch, 1356 &fw_on_ctlr_build, &init_connect_result))) { 1357 return(error); 1358 } 1359 #if 0 1360 if ((init_connect_result & TWA_BUNDLED_FW_SAFE_TO_FLASH) && 1361 (init_connect_result & TWA_CTLR_FW_RECOMMENDS_FLASH)) { 1362 /* 1363 * The bundled firmware is safe to flash, and the firmware 1364 * on the controller recommends a flash. So, flash! 1365 */ 1366 printf("%s: flashing bundled firmware...\n", 1367 device_xname(&sc->twa_dv)); 1368 1369 if ((error = twa_flash_firmware(sc))) { 1370 fw_flash_failed = TRUE; 1371 1372 printf("%s: unable to flash bundled firmware.\n", 1373 device_xname(&sc->twa_dv)); 1374 } else { 1375 printf("%s: successfully flashed bundled firmware.\n", 1376 device_xname(&sc->twa_dv)); 1377 fw_flashed = TRUE; 1378 } 1379 } 1380 if (fw_flashed) { 1381 /* The firmware was flashed. Have the new image loaded */ 1382 error = twa_hard_reset(sc); 1383 if (error == 0) 1384 error = twa_init_ctlr(sc); 1385 /* 1386 * If hard reset of controller failed, we need to return. 1387 * Otherwise, the above recursive call to twa_init_ctlr will 1388 * have completed the rest of the initialization (starting 1389 * from twa_drain_aen_queue below). Don't do it again. 1390 * Just return. 1391 */ 1392 return(error); 1393 } else { 1394 /* 1395 * Either we are not bundled with a firmware image, or 1396 * the bundled firmware is not safe to flash, 1397 * or flash failed for some reason. See if we can at 1398 * least work with the firmware on the controller in the 1399 * current mode. 1400 */ 1401 if (init_connect_result & TWA_CTLR_FW_COMPATIBLE) { 1402 /* Yes, we can. Make note of the operating mode. */ 1403 sc->working_srl = TWA_CURRENT_FW_SRL; 1404 sc->working_branch = TWA_CURRENT_FW_BRANCH; 1405 sc->working_build = TWA_CURRENT_FW_BUILD; 1406 } else { 1407 /* 1408 * No, we can't. See if we can at least work with 1409 * it in the base mode. We should never come here 1410 * if firmware has just been flashed. 1411 */ 1412 printf("%s: Driver/Firmware mismatch. Negotiating " 1413 "for base level.\n", device_xname(&sc->twa_dv)); 1414 if ((error = twa_init_connection(sc, 1415 TWA_INIT_MESSAGE_CREDITS, 1416 TWA_EXTENDED_INIT_CONNECT, TWA_BASE_FW_SRL, 1417 TWA_9000_ARCH_ID, TWA_BASE_FW_BRANCH, 1418 TWA_BASE_FW_BUILD, &fw_on_ctlr_srl, 1419 &fw_on_ctlr_arch_id, &fw_on_ctlr_branch, 1420 &fw_on_ctlr_build, &init_connect_result))) { 1421 printf("%s: can't initialize connection in " 1422 "base mode.\n", device_xname(&sc->twa_dv)); 1423 return(error); 1424 } 1425 if (!(init_connect_result & TWA_CTLR_FW_COMPATIBLE)) { 1426 /* 1427 * The firmware on the controller is not even 1428 * compatible with our base mode. We cannot 1429 * work with it. Bail... 1430 */ 1431 printf("Incompatible firmware on controller\n"); 1432 #ifdef TWA_FLASH_FIRMWARE 1433 if (fw_flash_failed) 1434 printf("...and could not flash bundled " 1435 "firmware.\n"); 1436 else 1437 printf("...and bundled firmware not " 1438 "safe to flash.\n"); 1439 #endif /* TWA_FLASH_FIRMWARE */ 1440 return(1); 1441 } 1442 /* 1443 * We can work with this firmware, but only in 1444 * base mode. 1445 */ 1446 sc->working_srl = TWA_BASE_FW_SRL; 1447 sc->working_branch = TWA_BASE_FW_BRANCH; 1448 sc->working_build = TWA_BASE_FW_BUILD; 1449 sc->twa_operating_mode = TWA_BASE_MODE; 1450 } 1451 } 1452 #endif 1453 twa_drain_aen_queue(sc); 1454 1455 /* Set controller state to initialized. */ 1456 sc->twa_state &= ~TWA_STATE_SHUTDOWN; 1457 return(0); 1458 } 1459 1460 static int 1461 twa_setup(struct twa_softc *sc) 1462 { 1463 struct tw_cl_event_packet *aen_queue; 1464 uint32_t i = 0; 1465 int error = 0; 1466 1467 /* Initialize request queues. */ 1468 TAILQ_INIT(&sc->twa_free); 1469 TAILQ_INIT(&sc->twa_busy); 1470 TAILQ_INIT(&sc->twa_pending); 1471 1472 sc->sc_nunits = 0; 1473 sc->twa_sc_flags = 0; 1474 1475 if (twa_alloc_req_pkts(sc, TWA_Q_LENGTH)) { 1476 1477 return(ENOMEM); 1478 } 1479 1480 /* Allocate memory for the AEN queue. */ 1481 if ((aen_queue = malloc(sizeof(struct tw_cl_event_packet) * 1482 TWA_Q_LENGTH, M_DEVBUF, M_WAITOK)) == NULL) { 1483 /* 1484 * This should not cause us to return error. We will only be 1485 * unable to support AEN's. But then, we will have to check 1486 * time and again to see if we can support AEN's, if we 1487 * continue. So, we will just return error. 1488 */ 1489 return (ENOMEM); 1490 } 1491 /* Initialize the aen queue. */ 1492 memset(aen_queue, 0, sizeof(struct tw_cl_event_packet) * TWA_Q_LENGTH); 1493 1494 for (i = 0; i < TWA_Q_LENGTH; i++) 1495 sc->twa_aen_queue[i] = &(aen_queue[i]); 1496 1497 twa_outl(sc, TWA_CONTROL_REGISTER_OFFSET, 1498 TWA_CONTROL_DISABLE_INTERRUPTS); 1499 1500 /* Initialize the controller. */ 1501 if ((error = twa_init_ctlr(sc))) { 1502 /* Soft reset the controller, and try one more time. */ 1503 1504 printf("%s: controller initialization failed. " 1505 "Retrying initialization\n", device_xname(&sc->twa_dv)); 1506 1507 if ((error = twa_soft_reset(sc)) == 0) 1508 error = twa_init_ctlr(sc); 1509 } 1510 1511 twa_describe_controller(sc); 1512 1513 error = twa_request_bus_scan(sc); 1514 1515 twa_outl(sc, TWA_CONTROL_REGISTER_OFFSET, 1516 TWA_CONTROL_CLEAR_ATTENTION_INTERRUPT | 1517 TWA_CONTROL_UNMASK_RESPONSE_INTERRUPT | 1518 TWA_CONTROL_ENABLE_INTERRUPTS); 1519 1520 return (error); 1521 } 1522 1523 void *twa_sdh; 1524 1525 static void 1526 twa_attach(struct device *parent, struct device *self, void *aux) 1527 { 1528 struct pci_attach_args *pa; 1529 struct twa_softc *sc; 1530 pci_chipset_tag_t pc; 1531 pcireg_t csr; 1532 pci_intr_handle_t ih; 1533 const char *intrstr; 1534 struct ctlname ctlnames[] = CTL_NAMES; 1535 const struct sysctlnode *node; 1536 int i; 1537 1538 sc = (struct twa_softc *)self; 1539 1540 pa = aux; 1541 pc = pa->pa_pc; 1542 sc->pc = pa->pa_pc; 1543 sc->tag = pa->pa_tag; 1544 sc->twa_dma_tag = pa->pa_dmat; 1545 1546 aprint_naive(": RAID controller\n"); 1547 aprint_normal(": 3ware Apache\n"); 1548 1549 if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_3WARE_9000) { 1550 if (pci_mapreg_map(pa, PCI_MAPREG_START, PCI_MAPREG_TYPE_IO, 0, 1551 &sc->twa_bus_iot, &sc->twa_bus_ioh, NULL, NULL)) { 1552 aprint_error_dev(&sc->twa_dv, "can't map i/o space\n"); 1553 return; 1554 } 1555 } else if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_3WARE_9550) { 1556 if (pci_mapreg_map(pa, PCI_MAPREG_START + 0x08, 1557 PCI_MAPREG_MEM_TYPE_64BIT, 0, &sc->twa_bus_iot, 1558 &sc->twa_bus_ioh, NULL, NULL)) { 1559 aprint_error_dev(&sc->twa_dv, "can't map mem space\n"); 1560 return; 1561 } 1562 } else { 1563 aprint_error_dev(&sc->twa_dv, "product id 0x%02x not recognized\n", 1564 PCI_PRODUCT(pa->pa_id)); 1565 return; 1566 } 1567 /* Enable the device. */ 1568 csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 1569 1570 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 1571 csr | PCI_COMMAND_MASTER_ENABLE); 1572 1573 /* Map and establish the interrupt. */ 1574 if (pci_intr_map(pa, &ih)) { 1575 aprint_error_dev(&sc->twa_dv, "can't map interrupt\n"); 1576 return; 1577 } 1578 intrstr = pci_intr_string(pc, ih); 1579 1580 sc->twa_ih = pci_intr_establish(pc, ih, IPL_BIO, twa_intr, sc); 1581 if (sc->twa_ih == NULL) { 1582 aprint_error_dev(&sc->twa_dv, "can't establish interrupt%s%s\n", 1583 (intrstr) ? " at " : "", 1584 (intrstr) ? intrstr : ""); 1585 return; 1586 } 1587 1588 if (intrstr != NULL) 1589 aprint_normal_dev(&sc->twa_dv, "interrupting at %s\n", 1590 intrstr); 1591 1592 twa_setup(sc); 1593 1594 if (twa_sdh == NULL) 1595 twa_sdh = shutdownhook_establish(twa_shutdown, NULL); 1596 1597 /* sysctl set-up for 3ware cli */ 1598 if (sysctl_createv(NULL, 0, NULL, NULL, 1599 CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw", 1600 NULL, NULL, 0, NULL, 0, 1601 CTL_HW, CTL_EOL) != 0) { 1602 aprint_error_dev(&sc->twa_dv, "could not create %s sysctl node\n", 1603 ctlnames[CTL_HW].ctl_name); 1604 return; 1605 } 1606 if (sysctl_createv(NULL, 0, NULL, &node, 1607 0, CTLTYPE_NODE, device_xname(&sc->twa_dv), 1608 SYSCTL_DESCR("twa driver information"), 1609 NULL, 0, NULL, 0, 1610 CTL_HW, CTL_CREATE, CTL_EOL) != 0) { 1611 aprint_error_dev(&sc->twa_dv, "could not create %s.%s sysctl node\n", 1612 ctlnames[CTL_HW].ctl_name, 1613 device_xname(&sc->twa_dv)); 1614 return; 1615 } 1616 if ((i = sysctl_createv(NULL, 0, NULL, NULL, 1617 0, CTLTYPE_STRING, "driver_version", 1618 SYSCTL_DESCR("twa driver version"), 1619 NULL, 0, &twaver, 0, 1620 CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL)) 1621 != 0) { 1622 aprint_error_dev(&sc->twa_dv, "could not create %s.%s.driver_version sysctl\n", 1623 ctlnames[CTL_HW].ctl_name, 1624 device_xname(&sc->twa_dv)); 1625 return; 1626 } 1627 1628 return; 1629 } 1630 1631 static void 1632 twa_shutdown(void *arg) 1633 { 1634 extern struct cfdriver twa_cd; 1635 struct twa_softc *sc; 1636 int i, rv, unit; 1637 1638 for (i = 0; i < twa_cd.cd_ndevs; i++) { 1639 if ((sc = device_lookup(&twa_cd, i)) == NULL) 1640 continue; 1641 1642 for (unit = 0; unit < TWA_MAX_UNITS; unit++) 1643 if (sc->sc_units[unit].td_dev != NULL) 1644 (void) config_detach(sc->sc_units[unit].td_dev, 1645 DETACH_FORCE | DETACH_QUIET); 1646 1647 twa_outl(sc, TWA_CONTROL_REGISTER_OFFSET, 1648 TWA_CONTROL_DISABLE_INTERRUPTS); 1649 1650 /* Let the controller know that we are going down. */ 1651 rv = twa_init_connection(sc, TWA_SHUTDOWN_MESSAGE_CREDITS, 1652 0, 0, 0, 0, 0, 1653 NULL, NULL, NULL, NULL, NULL); 1654 } 1655 } 1656 1657 void 1658 twa_register_callbacks(struct twa_softc *sc, int unit, 1659 const struct twa_callbacks *tcb) 1660 { 1661 1662 sc->sc_units[unit].td_callbacks = tcb; 1663 } 1664 1665 /* 1666 * Print autoconfiguration message for a sub-device 1667 */ 1668 static int 1669 twa_print(void *aux, const char *pnp) 1670 { 1671 struct twa_attach_args *twaa; 1672 1673 twaa = aux; 1674 1675 if (pnp !=NULL) 1676 aprint_normal("block device at %s\n", pnp); 1677 aprint_normal(" unit %d\n", twaa->twaa_unit); 1678 return (UNCONF); 1679 } 1680 1681 static void 1682 twa_fillin_sgl(struct twa_sg *sgl, bus_dma_segment_t *segs, int nsegments) 1683 { 1684 int i; 1685 for (i = 0; i < nsegments; i++) { 1686 sgl[i].address = segs[i].ds_addr; 1687 sgl[i].length = (uint32_t)(segs[i].ds_len); 1688 } 1689 } 1690 1691 static int 1692 twa_submit_io(struct twa_request *tr) 1693 { 1694 int error; 1695 1696 if ((error = twa_start(tr))) { 1697 if (error == EBUSY) 1698 error = 0; /* request is in the pending queue */ 1699 else { 1700 tr->tr_error = error; 1701 } 1702 } 1703 return(error); 1704 } 1705 1706 /* 1707 * Function name: twa_setup_data_dmamap 1708 * Description: Callback of bus_dmamap_load for the buffer associated 1709 * with data. Updates the cmd pkt (size/sgl_entries 1710 * fields, as applicable) to reflect the number of sg 1711 * elements. 1712 * 1713 * Input: arg -- ptr to request pkt 1714 * segs -- ptr to a list of segment descriptors 1715 * nsegments--# of segments 1716 * error -- 0 if no errors encountered before callback, 1717 * non-zero if errors were encountered 1718 * Output: None 1719 * Return value: None 1720 */ 1721 static int 1722 twa_setup_data_dmamap(void *arg, bus_dma_segment_t *segs, int nsegments, 1723 int error) 1724 { 1725 struct twa_request *tr = (struct twa_request *)arg; 1726 struct twa_command_packet *cmdpkt = tr->tr_command; 1727 struct twa_command_9k *cmd9k; 1728 union twa_command_7k *cmd7k; 1729 uint8_t sgl_offset; 1730 1731 if (error == EFBIG) { 1732 tr->tr_error = error; 1733 goto out; 1734 } 1735 1736 if (tr->tr_cmd_pkt_type & TWA_CMD_PKT_TYPE_9K) { 1737 cmd9k = &(cmdpkt->command.cmd_pkt_9k); 1738 twa_fillin_sgl(&(cmd9k->sg_list[0]), segs, nsegments); 1739 cmd9k->sgl_entries += nsegments - 1; 1740 } else { 1741 /* It's a 7000 command packet. */ 1742 cmd7k = &(cmdpkt->command.cmd_pkt_7k); 1743 if ((sgl_offset = cmdpkt->command.cmd_pkt_7k.generic.sgl_offset)) 1744 twa_fillin_sgl((struct twa_sg *) 1745 (((uint32_t *)cmd7k) + sgl_offset), 1746 segs, nsegments); 1747 /* Modify the size field, based on sg address size. */ 1748 cmd7k->generic.size += 1749 ((TWA_64BIT_ADDRESSES ? 3 : 2) * nsegments); 1750 } 1751 1752 if (tr->tr_flags & TWA_CMD_DATA_IN) 1753 bus_dmamap_sync(tr->tr_sc->twa_dma_tag, tr->tr_dma_map, 0, 1754 tr->tr_length, BUS_DMASYNC_PREREAD); 1755 if (tr->tr_flags & TWA_CMD_DATA_OUT) { 1756 /* 1757 * If we're using an alignment buffer, and we're 1758 * writing data, copy the real data out. 1759 */ 1760 if (tr->tr_flags & TWA_CMD_DATA_COPY_NEEDED) 1761 memcpy(tr->tr_data, tr->tr_real_data, 1762 tr->tr_real_length); 1763 bus_dmamap_sync(tr->tr_sc->twa_dma_tag, tr->tr_dma_map, 0, 1764 tr->tr_length, BUS_DMASYNC_PREWRITE); 1765 } 1766 error = twa_submit_io(tr); 1767 1768 out: 1769 if (error) { 1770 twa_unmap_request(tr); 1771 /* 1772 * If the caller had been returned EINPROGRESS, and he has 1773 * registered a callback for handling completion, the callback 1774 * will never get called because we were unable to submit the 1775 * request. So, free up the request right here. 1776 */ 1777 if ((tr->tr_flags & TWA_CMD_IN_PROGRESS) && (tr->tr_callback)) 1778 twa_release_request(tr); 1779 } 1780 return (error); 1781 } 1782 1783 /* 1784 * Function name: twa_map_request 1785 * Description: Maps a cmd pkt and data associated with it, into 1786 * DMA'able memory. 1787 * 1788 * Input: tr -- ptr to request pkt 1789 * Output: None 1790 * Return value: 0 -- success 1791 * non-zero-- failure 1792 */ 1793 int 1794 twa_map_request(struct twa_request *tr) 1795 { 1796 struct twa_softc *sc = tr->tr_sc; 1797 int s, rv, error = 0; 1798 1799 /* If the command involves data, map that too. */ 1800 if (tr->tr_data != NULL) { 1801 1802 if (((u_long)tr->tr_data & (511)) != 0) { 1803 tr->tr_flags |= TWA_CMD_DATA_COPY_NEEDED; 1804 tr->tr_real_data = tr->tr_data; 1805 tr->tr_real_length = tr->tr_length; 1806 s = splvm(); 1807 tr->tr_data = (void *)uvm_km_alloc(kmem_map, 1808 tr->tr_length, 512, UVM_KMF_NOWAIT|UVM_KMF_WIRED); 1809 splx(s); 1810 1811 if (tr->tr_data == NULL) { 1812 tr->tr_data = tr->tr_real_data; 1813 tr->tr_length = tr->tr_real_length; 1814 return(ENOMEM); 1815 } 1816 if ((tr->tr_flags & TWA_CMD_DATA_IN) != 0) 1817 memcpy(tr->tr_data, tr->tr_real_data, 1818 tr->tr_length); 1819 } 1820 1821 /* 1822 * Map the data buffer into bus space and build the S/G list. 1823 */ 1824 rv = bus_dmamap_load(sc->twa_dma_tag, tr->tr_dma_map, 1825 tr->tr_data, tr->tr_length, NULL, BUS_DMA_NOWAIT | 1826 BUS_DMA_STREAMING | (tr->tr_flags & TWA_CMD_DATA_OUT) ? 1827 BUS_DMA_READ : BUS_DMA_WRITE); 1828 1829 if (rv != 0) { 1830 if ((tr->tr_flags & TWA_CMD_DATA_COPY_NEEDED) != 0) { 1831 s = splvm(); 1832 uvm_km_free(kmem_map, (vaddr_t)tr->tr_data, 1833 tr->tr_length, UVM_KMF_WIRED); 1834 splx(s); 1835 } 1836 return (rv); 1837 } 1838 1839 if ((rv = twa_setup_data_dmamap(tr, 1840 tr->tr_dma_map->dm_segs, 1841 tr->tr_dma_map->dm_nsegs, error))) { 1842 1843 if (tr->tr_flags & TWA_CMD_DATA_COPY_NEEDED) { 1844 s = splvm(); 1845 uvm_km_free(kmem_map, (vaddr_t)tr->tr_data, 1846 tr->tr_length, UVM_KMF_WIRED); 1847 splx(s); 1848 tr->tr_data = tr->tr_real_data; 1849 tr->tr_length = tr->tr_real_length; 1850 } 1851 } else 1852 error = tr->tr_error; 1853 1854 } else 1855 if ((rv = twa_submit_io(tr))) 1856 twa_unmap_request(tr); 1857 1858 return (rv); 1859 } 1860 1861 #if 0 1862 /* 1863 * Function name: twa_flash_firmware 1864 * Description: Flashes bundled firmware image onto controller. 1865 * 1866 * Input: sc -- ptr to per ctlr structure 1867 * Output: None 1868 * Return value: 0 -- success 1869 * non-zero-- failure 1870 */ 1871 static int 1872 twa_flash_firmware(struct twa_softc *sc) 1873 { 1874 struct twa_request *tr; 1875 struct twa_command_download_firmware *cmd; 1876 uint32_t count; 1877 uint32_t fw_img_chunk_size; 1878 uint32_t this_chunk_size = 0; 1879 uint32_t remaining_img_size = 0; 1880 int s, error = 0; 1881 int i; 1882 1883 if ((tr = twa_get_request(sc, 0)) == NULL) { 1884 /* No free request packets available. Can't proceed. */ 1885 error = EIO; 1886 goto out; 1887 } 1888 1889 count = (twa_fw_img_size / 65536); 1890 1891 count += ((twa_fw_img_size % 65536) != 0) ? 1 : 0; 1892 1893 tr->tr_cmd_pkt_type |= TWA_CMD_PKT_TYPE_INTERNAL; 1894 /* Allocate sufficient memory to hold a chunk of the firmware image. */ 1895 fw_img_chunk_size = ((twa_fw_img_size / count) + 511) & ~511; 1896 1897 s = splvm(); 1898 tr->tr_data = (void *)uvm_km_alloc(kmem_map, fw_img_chunk_size, 512, 1899 UVM_KMF_WIRED); 1900 splx(s); 1901 1902 if (tr->tr_data == NULL) { 1903 error = ENOMEM; 1904 goto out; 1905 } 1906 1907 remaining_img_size = twa_fw_img_size; 1908 cmd = &(tr->tr_command->command.cmd_pkt_7k.download_fw); 1909 1910 for (i = 0; i < count; i++) { 1911 /* Build a cmd pkt for downloading firmware. */ 1912 memset(tr->tr_command, 0, sizeof(struct twa_command_packet)); 1913 1914 tr->tr_command->cmd_hdr.header_desc.size_header = 128; 1915 1916 cmd->opcode = TWA_OP_DOWNLOAD_FIRMWARE; 1917 cmd->sgl_offset = 2; /* offset in dwords, to the beginning 1918 of sg list */ 1919 cmd->size = 2; /* this field will be updated at data 1920 map time */ 1921 cmd->request_id = tr->tr_request_id; 1922 cmd->unit = 0; 1923 cmd->status = 0; 1924 cmd->flags = 0; 1925 cmd->param = 8; /* prom image */ 1926 1927 if (i != (count - 1)) 1928 this_chunk_size = fw_img_chunk_size; 1929 else /* last chunk */ 1930 this_chunk_size = remaining_img_size; 1931 1932 remaining_img_size -= this_chunk_size; 1933 1934 memset(tr->tr_data, 0, fw_img_chunk_size); 1935 1936 memcpy(tr->tr_data, twa_fw_img + (i * fw_img_chunk_size), 1937 this_chunk_size); 1938 /* 1939 * The next line will effect only the last chunk. 1940 */ 1941 tr->tr_length = (this_chunk_size + 511) & ~511; 1942 1943 tr->tr_flags |= TWA_CMD_DATA_OUT; 1944 1945 error = twa_immediate_request(tr, TWA_REQUEST_TIMEOUT_PERIOD); 1946 1947 if (error) { 1948 if (error == ETIMEDOUT) 1949 /* clean-up done by twa_immediate_request */ 1950 return(error); 1951 break; 1952 } 1953 error = cmd->status; 1954 1955 if (i != (count - 1)) { 1956 1957 /* 1958 * XXX FreeBSD code doesn't check for no error condition 1959 * but based on observation, error seems to return 0 1960 */ 1961 if ((error = 1962 tr->tr_command->cmd_hdr.status_block.error) == 0) { 1963 continue; 1964 } else if ((error = 1965 tr->tr_command->cmd_hdr.status_block.error) == 1966 TWA_ERROR_MORE_DATA) { 1967 continue; 1968 } else { 1969 twa_hard_reset(sc); 1970 break; 1971 } 1972 } else /* last chunk */ 1973 if (error) { 1974 aprint_error_dev(&sc->twa_dv, "firmware flash request failed. " 1975 "error = 0x%x\n", error); 1976 twa_hard_reset(sc); 1977 } 1978 } 1979 1980 if (tr->tr_data) { 1981 s = splvm(); 1982 uvm_km_free(kmem_map, (vaddr_t)tr->tr_data, 1983 fw_img_chunk_size, UVM_KMF_WIRED); 1984 splx(s); 1985 } 1986 out: 1987 if (tr) 1988 twa_release_request(tr); 1989 return(error); 1990 } 1991 1992 /* 1993 * Function name: twa_hard_reset 1994 * Description: Hard reset the controller. 1995 * 1996 * Input: sc -- ptr to per ctlr structure 1997 * Output: None 1998 * Return value: 0 -- success 1999 * non-zero-- failure 2000 */ 2001 static int 2002 twa_hard_reset(struct twa_softc *sc) 2003 { 2004 struct twa_request *tr; 2005 struct twa_command_reset_firmware *cmd; 2006 int error; 2007 2008 if ((tr = twa_get_request(sc, 0)) == NULL) 2009 return(EIO); 2010 tr->tr_cmd_pkt_type |= TWA_CMD_PKT_TYPE_INTERNAL; 2011 /* Build a cmd pkt for sending down the hard reset command. */ 2012 tr->tr_command->cmd_hdr.header_desc.size_header = 128; 2013 2014 cmd = &(tr->tr_command->command.cmd_pkt_7k.reset_fw); 2015 cmd->opcode = TWA_OP_RESET_FIRMWARE; 2016 cmd->size = 2; /* this field will be updated at data map time */ 2017 cmd->request_id = tr->tr_request_id; 2018 cmd->unit = 0; 2019 cmd->status = 0; 2020 cmd->flags = 0; 2021 cmd->param = 0; /* don't reload FPGA logic */ 2022 2023 tr->tr_data = NULL; 2024 tr->tr_length = 0; 2025 2026 error = twa_immediate_request(tr, TWA_REQUEST_TIMEOUT_PERIOD); 2027 if (error) { 2028 printf("%s: hard reset request could not be posted. " 2029 "error = 0x%x\n", device_xname(&sc->twa_dv), error); 2030 if (error == ETIMEDOUT) 2031 /* clean-up done by twa_immediate_request */ 2032 return(error); 2033 goto out; 2034 } 2035 if ((error = cmd->status)) { 2036 aprint_error_dev(&sc->twa_dv, "hard reset request failed. error = 0x%x\n", 2037 error); 2038 } 2039 2040 out: 2041 if (tr) 2042 twa_release_request(tr); 2043 return(error); 2044 } 2045 #endif 2046 2047 /* 2048 * Function name: twa_intr 2049 * Description: Interrupt handler. Determines the kind of interrupt, 2050 * and calls the appropriate handler. 2051 * 2052 * Input: sc -- ptr to per ctlr structure 2053 * Output: None 2054 * Return value: None 2055 */ 2056 2057 static int 2058 twa_intr(void *arg) 2059 { 2060 int caught, s, rv; 2061 struct twa_softc *sc; 2062 uint32_t status_reg; 2063 sc = (struct twa_softc *)arg; 2064 2065 caught = 0; 2066 /* Collect current interrupt status. */ 2067 status_reg = twa_inl(sc, TWA_STATUS_REGISTER_OFFSET); 2068 if (twa_check_ctlr_state(sc, status_reg)) { 2069 caught = 1; 2070 goto bail; 2071 } 2072 /* Dispatch based on the kind of interrupt. */ 2073 if (status_reg & TWA_STATUS_HOST_INTERRUPT) { 2074 twa_outl(sc, TWA_CONTROL_REGISTER_OFFSET, 2075 TWA_CONTROL_CLEAR_HOST_INTERRUPT); 2076 caught = 1; 2077 } 2078 if ((status_reg & TWA_STATUS_ATTENTION_INTERRUPT) != 0) { 2079 twa_outl(sc, TWA_CONTROL_REGISTER_OFFSET, 2080 TWA_CONTROL_CLEAR_ATTENTION_INTERRUPT); 2081 rv = twa_fetch_aen(sc); 2082 #ifdef DIAGNOSTIC 2083 if (rv != 0) 2084 printf("%s: unable to retrieve AEN (%d)\n", 2085 device_xname(&sc->twa_dv), rv); 2086 #endif 2087 caught = 1; 2088 } 2089 if (status_reg & TWA_STATUS_COMMAND_INTERRUPT) { 2090 /* Start any requests that might be in the pending queue. */ 2091 twa_outl(sc, TWA_CONTROL_REGISTER_OFFSET, 2092 TWA_CONTROL_MASK_COMMAND_INTERRUPT); 2093 (void)twa_drain_pending_queue(sc); 2094 caught = 1; 2095 } 2096 if (status_reg & TWA_STATUS_RESPONSE_INTERRUPT) { 2097 s = splbio(); 2098 twa_done(sc); 2099 splx(s); 2100 caught = 1; 2101 } 2102 bail: 2103 return (caught); 2104 } 2105 2106 /* 2107 * Accept an open operation on the control device. 2108 */ 2109 static int 2110 twaopen(dev_t dev, int flag, int mode, struct lwp *l) 2111 { 2112 struct twa_softc *twa; 2113 2114 if ((twa = device_lookup(&twa_cd, minor(dev))) == NULL) 2115 return (ENXIO); 2116 2117 twa->twa_sc_flags |= TWA_STATE_OPEN; 2118 2119 return (0); 2120 } 2121 2122 /* 2123 * Accept the last close on the control device. 2124 */ 2125 static int 2126 twaclose(dev_t dev, int flag, int mode, 2127 struct lwp *l) 2128 { 2129 struct twa_softc *twa; 2130 2131 twa = device_lookup(&twa_cd, minor(dev)); 2132 twa->twa_sc_flags &= ~TWA_STATE_OPEN; 2133 return (0); 2134 } 2135 2136 /* 2137 * Function name: twaioctl 2138 * Description: ioctl handler. 2139 * 2140 * Input: sc -- ptr to per ctlr structure 2141 * cmd -- ioctl cmd 2142 * buf -- ptr to buffer in kernel memory, which is 2143 * a copy of the input buffer in user-space 2144 * Output: buf -- ptr to buffer in kernel memory, which will 2145 * be copied of the output buffer in user-space 2146 * Return value: 0 -- success 2147 * non-zero-- failure 2148 */ 2149 static int 2150 twaioctl(dev_t dev, u_long cmd, void *data, int flag, 2151 struct lwp *l) 2152 { 2153 struct twa_softc *sc; 2154 struct twa_ioctl_9k *user_buf = (struct twa_ioctl_9k *)data; 2155 struct tw_cl_event_packet event_buf; 2156 struct twa_request *tr = 0; 2157 int32_t event_index = 0; 2158 int32_t start_index; 2159 int s, error = 0; 2160 2161 sc = device_lookup(&twa_cd, minor(dev)); 2162 2163 switch (cmd) { 2164 case TW_OSL_IOCTL_FIRMWARE_PASS_THROUGH: 2165 { 2166 struct twa_command_packet *cmdpkt; 2167 uint32_t data_buf_size_adjusted; 2168 2169 /* Get a request packet */ 2170 tr = twa_get_request_wait(sc, 0); 2171 KASSERT(tr != NULL); 2172 /* 2173 * Make sure that the data buffer sent to firmware is a 2174 * 512 byte multiple in size. 2175 */ 2176 data_buf_size_adjusted = 2177 (user_buf->twa_drvr_pkt.buffer_length + 511) & ~511; 2178 2179 if ((tr->tr_length = data_buf_size_adjusted)) { 2180 if ((tr->tr_data = malloc(data_buf_size_adjusted, 2181 M_DEVBUF, M_WAITOK)) == NULL) { 2182 error = ENOMEM; 2183 goto fw_passthru_done; 2184 } 2185 /* Copy the payload. */ 2186 if ((error = copyin((void *) (user_buf->pdata), 2187 (void *) (tr->tr_data), 2188 user_buf->twa_drvr_pkt.buffer_length)) != 0) { 2189 goto fw_passthru_done; 2190 } 2191 tr->tr_flags |= TWA_CMD_DATA_IN | TWA_CMD_DATA_OUT; 2192 } 2193 tr->tr_cmd_pkt_type |= TWA_CMD_PKT_TYPE_IOCTL; 2194 cmdpkt = tr->tr_command; 2195 2196 /* Copy the command packet. */ 2197 memcpy(cmdpkt, &(user_buf->twa_cmd_pkt), 2198 sizeof(struct twa_command_packet)); 2199 cmdpkt->command.cmd_pkt_7k.generic.request_id = 2200 tr->tr_request_id; 2201 2202 /* Send down the request, and wait for it to complete. */ 2203 if ((error = twa_wait_request(tr, TWA_REQUEST_TIMEOUT_PERIOD))) { 2204 if (error == ETIMEDOUT) 2205 break; /* clean-up done by twa_wait_request */ 2206 goto fw_passthru_done; 2207 } 2208 2209 /* Copy the command packet back into user space. */ 2210 memcpy(&user_buf->twa_cmd_pkt, cmdpkt, 2211 sizeof(struct twa_command_packet)); 2212 2213 /* If there was a payload, copy it back too. */ 2214 if (tr->tr_length) 2215 error = copyout(tr->tr_data, user_buf->pdata, 2216 user_buf->twa_drvr_pkt.buffer_length); 2217 fw_passthru_done: 2218 /* Free resources. */ 2219 if (tr->tr_data) 2220 free(tr->tr_data, M_DEVBUF); 2221 2222 if (tr) 2223 twa_release_request(tr); 2224 break; 2225 } 2226 2227 case TW_OSL_IOCTL_SCAN_BUS: 2228 twa_request_bus_scan(sc); 2229 break; 2230 2231 case TW_CL_IOCTL_GET_FIRST_EVENT: 2232 if (sc->twa_aen_queue_wrapped) { 2233 if (sc->twa_aen_queue_overflow) { 2234 /* 2235 * The aen queue has wrapped, even before some 2236 * events have been retrieved. Let the caller 2237 * know that he missed out on some AEN's. 2238 */ 2239 user_buf->twa_drvr_pkt.status = 2240 TWA_ERROR_AEN_OVERFLOW; 2241 sc->twa_aen_queue_overflow = FALSE; 2242 } else 2243 user_buf->twa_drvr_pkt.status = 0; 2244 event_index = sc->twa_aen_head; 2245 } else { 2246 if (sc->twa_aen_head == sc->twa_aen_tail) { 2247 user_buf->twa_drvr_pkt.status = 2248 TWA_ERROR_AEN_NO_EVENTS; 2249 break; 2250 } 2251 user_buf->twa_drvr_pkt.status = 0; 2252 event_index = sc->twa_aen_tail; /* = 0 */ 2253 } 2254 if ((error = copyout(sc->twa_aen_queue[event_index], 2255 user_buf->pdata, sizeof(struct tw_cl_event_packet))) != 0) 2256 (sc->twa_aen_queue[event_index])->retrieved = 2257 TWA_AEN_RETRIEVED; 2258 break; 2259 2260 case TW_CL_IOCTL_GET_LAST_EVENT: 2261 if (sc->twa_aen_queue_wrapped) { 2262 if (sc->twa_aen_queue_overflow) { 2263 /* 2264 * The aen queue has wrapped, even before some 2265 * events have been retrieved. Let the caller 2266 * know that he missed out on some AEN's. 2267 */ 2268 user_buf->twa_drvr_pkt.status = 2269 TWA_ERROR_AEN_OVERFLOW; 2270 sc->twa_aen_queue_overflow = FALSE; 2271 } else 2272 user_buf->twa_drvr_pkt.status = 0; 2273 } else { 2274 if (sc->twa_aen_head == sc->twa_aen_tail) { 2275 user_buf->twa_drvr_pkt.status = 2276 TWA_ERROR_AEN_NO_EVENTS; 2277 break; 2278 } 2279 user_buf->twa_drvr_pkt.status = 0; 2280 } 2281 event_index = 2282 (sc->twa_aen_head - 1 + TWA_Q_LENGTH) % TWA_Q_LENGTH; 2283 if ((error = copyout(sc->twa_aen_queue[event_index], 2284 user_buf->pdata, sizeof(struct tw_cl_event_packet))) != 0) 2285 (sc->twa_aen_queue[event_index])->retrieved = 2286 TWA_AEN_RETRIEVED; 2287 break; 2288 2289 case TW_CL_IOCTL_GET_NEXT_EVENT: 2290 user_buf->twa_drvr_pkt.status = 0; 2291 if (sc->twa_aen_queue_wrapped) { 2292 2293 if (sc->twa_aen_queue_overflow) { 2294 /* 2295 * The aen queue has wrapped, even before some 2296 * events have been retrieved. Let the caller 2297 * know that he missed out on some AEN's. 2298 */ 2299 user_buf->twa_drvr_pkt.status = 2300 TWA_ERROR_AEN_OVERFLOW; 2301 sc->twa_aen_queue_overflow = FALSE; 2302 } 2303 start_index = sc->twa_aen_head; 2304 } else { 2305 if (sc->twa_aen_head == sc->twa_aen_tail) { 2306 user_buf->twa_drvr_pkt.status = 2307 TWA_ERROR_AEN_NO_EVENTS; 2308 break; 2309 } 2310 start_index = sc->twa_aen_tail; /* = 0 */ 2311 } 2312 error = copyin(user_buf->pdata, &event_buf, 2313 sizeof(struct tw_cl_event_packet)); 2314 2315 event_index = (start_index + event_buf.sequence_id - 2316 (sc->twa_aen_queue[start_index])->sequence_id + 1) 2317 % TWA_Q_LENGTH; 2318 2319 if (!((sc->twa_aen_queue[event_index])->sequence_id > 2320 event_buf.sequence_id)) { 2321 if (user_buf->twa_drvr_pkt.status == 2322 TWA_ERROR_AEN_OVERFLOW) 2323 /* so we report the overflow next time */ 2324 sc->twa_aen_queue_overflow = TRUE; 2325 user_buf->twa_drvr_pkt.status = TWA_ERROR_AEN_NO_EVENTS; 2326 break; 2327 } 2328 if ((error = copyout(sc->twa_aen_queue[event_index], 2329 user_buf->pdata, sizeof(struct tw_cl_event_packet))) != 0) 2330 (sc->twa_aen_queue[event_index])->retrieved = 2331 TWA_AEN_RETRIEVED; 2332 break; 2333 2334 case TW_CL_IOCTL_GET_PREVIOUS_EVENT: 2335 user_buf->twa_drvr_pkt.status = 0; 2336 if (sc->twa_aen_queue_wrapped) { 2337 if (sc->twa_aen_queue_overflow) { 2338 /* 2339 * The aen queue has wrapped, even before some 2340 * events have been retrieved. Let the caller 2341 * know that he missed out on some AEN's. 2342 */ 2343 user_buf->twa_drvr_pkt.status = 2344 TWA_ERROR_AEN_OVERFLOW; 2345 sc->twa_aen_queue_overflow = FALSE; 2346 } 2347 start_index = sc->twa_aen_head; 2348 } else { 2349 if (sc->twa_aen_head == sc->twa_aen_tail) { 2350 user_buf->twa_drvr_pkt.status = 2351 TWA_ERROR_AEN_NO_EVENTS; 2352 break; 2353 } 2354 start_index = sc->twa_aen_tail; /* = 0 */ 2355 } 2356 if ((error = copyin(user_buf->pdata, &event_buf, 2357 sizeof(struct tw_cl_event_packet))) != 0) 2358 2359 event_index = (start_index + event_buf.sequence_id - 2360 (sc->twa_aen_queue[start_index])->sequence_id - 1) 2361 % TWA_Q_LENGTH; 2362 if (!((sc->twa_aen_queue[event_index])->sequence_id < 2363 event_buf.sequence_id)) { 2364 if (user_buf->twa_drvr_pkt.status == 2365 TWA_ERROR_AEN_OVERFLOW) 2366 /* so we report the overflow next time */ 2367 sc->twa_aen_queue_overflow = TRUE; 2368 user_buf->twa_drvr_pkt.status = 2369 TWA_ERROR_AEN_NO_EVENTS; 2370 break; 2371 } 2372 if ((error = copyout(sc->twa_aen_queue [event_index], 2373 user_buf->pdata, sizeof(struct tw_cl_event_packet))) != 0) 2374 aprint_error_dev(&sc->twa_dv, "get_previous: Could not copyout to " 2375 "event_buf. error = %x\n", 2376 error); 2377 (sc->twa_aen_queue[event_index])->retrieved = TWA_AEN_RETRIEVED; 2378 break; 2379 2380 case TW_CL_IOCTL_GET_LOCK: 2381 { 2382 struct tw_cl_lock_packet twa_lock; 2383 2384 copyin(user_buf->pdata, &twa_lock, 2385 sizeof(struct tw_cl_lock_packet)); 2386 s = splbio(); 2387 if ((sc->twa_ioctl_lock.lock == TWA_LOCK_FREE) || 2388 (twa_lock.force_flag) || 2389 (time_second >= sc->twa_ioctl_lock.timeout)) { 2390 2391 sc->twa_ioctl_lock.lock = TWA_LOCK_HELD; 2392 sc->twa_ioctl_lock.timeout = time_second + 2393 (twa_lock.timeout_msec / 1000); 2394 twa_lock.time_remaining_msec = twa_lock.timeout_msec; 2395 user_buf->twa_drvr_pkt.status = 0; 2396 } else { 2397 twa_lock.time_remaining_msec = 2398 (sc->twa_ioctl_lock.timeout - time_second) * 2399 1000; 2400 user_buf->twa_drvr_pkt.status = 2401 TWA_ERROR_IOCTL_LOCK_ALREADY_HELD; 2402 } 2403 splx(s); 2404 copyout(&twa_lock, user_buf->pdata, 2405 sizeof(struct tw_cl_lock_packet)); 2406 break; 2407 } 2408 2409 case TW_CL_IOCTL_RELEASE_LOCK: 2410 s = splbio(); 2411 if (sc->twa_ioctl_lock.lock == TWA_LOCK_FREE) { 2412 user_buf->twa_drvr_pkt.status = 2413 TWA_ERROR_IOCTL_LOCK_NOT_HELD; 2414 } else { 2415 sc->twa_ioctl_lock.lock = TWA_LOCK_FREE; 2416 user_buf->twa_drvr_pkt.status = 0; 2417 } 2418 splx(s); 2419 break; 2420 2421 case TW_CL_IOCTL_GET_COMPATIBILITY_INFO: 2422 { 2423 struct tw_cl_compatibility_packet comp_pkt; 2424 2425 memcpy(comp_pkt.driver_version, TWA_DRIVER_VERSION_STRING, 2426 sizeof(TWA_DRIVER_VERSION_STRING)); 2427 comp_pkt.working_srl = sc->working_srl; 2428 comp_pkt.working_branch = sc->working_branch; 2429 comp_pkt.working_build = sc->working_build; 2430 user_buf->twa_drvr_pkt.status = 0; 2431 2432 /* Copy compatibility information to user space. */ 2433 copyout(&comp_pkt, user_buf->pdata, 2434 min(sizeof(struct tw_cl_compatibility_packet), 2435 user_buf->twa_drvr_pkt.buffer_length)); 2436 break; 2437 } 2438 2439 case TWA_IOCTL_GET_UNITNAME: /* WASABI EXTENSION */ 2440 { 2441 struct twa_unitname *tn; 2442 struct twa_drive *tdr; 2443 2444 tn = (struct twa_unitname *)data; 2445 /* XXX mutex */ 2446 if (tn->tn_unit < 0 || tn->tn_unit >= TWA_MAX_UNITS) 2447 return (EINVAL); 2448 tdr = &sc->sc_units[tn->tn_unit]; 2449 if (tdr->td_dev == NULL) 2450 tn->tn_name[0] = '\0'; 2451 else 2452 strlcpy(tn->tn_name, device_xname(tdr->td_dev), 2453 sizeof(tn->tn_name)); 2454 return (0); 2455 } 2456 2457 default: 2458 /* Unknown opcode. */ 2459 error = ENOTTY; 2460 } 2461 2462 return(error); 2463 } 2464 2465 const struct cdevsw twa_cdevsw = { 2466 twaopen, twaclose, noread, nowrite, twaioctl, 2467 nostop, notty, nopoll, nommap, nokqfilter, D_OTHER, 2468 }; 2469 2470 /* 2471 * Function name: twa_get_param 2472 * Description: Get a firmware parameter. 2473 * 2474 * Input: sc -- ptr to per ctlr structure 2475 * table_id -- parameter table # 2476 * param_id -- index of the parameter in the table 2477 * param_size -- size of the parameter in bytes 2478 * callback -- ptr to function, if any, to be called 2479 * back on completion; NULL if no callback. 2480 * Output: None 2481 * Return value: ptr to param structure -- success 2482 * NULL -- failure 2483 */ 2484 static int 2485 twa_get_param(struct twa_softc *sc, int table_id, int param_id, 2486 size_t param_size, void (* callback)(struct twa_request *tr), 2487 struct twa_param_9k **param) 2488 { 2489 int rv = 0; 2490 struct twa_request *tr; 2491 union twa_command_7k *cmd; 2492 2493 /* Get a request packet. */ 2494 if ((tr = twa_get_request(sc, 0)) == NULL) { 2495 rv = EAGAIN; 2496 goto out; 2497 } 2498 2499 tr->tr_cmd_pkt_type |= TWA_CMD_PKT_TYPE_INTERNAL; 2500 2501 /* Allocate memory to read data into. */ 2502 if ((*param = (struct twa_param_9k *) 2503 malloc(TWA_SECTOR_SIZE, M_DEVBUF, M_NOWAIT)) == NULL) { 2504 rv = ENOMEM; 2505 goto out; 2506 } 2507 2508 memset(*param, 0, sizeof(struct twa_param_9k) - 1 + param_size); 2509 tr->tr_data = *param; 2510 tr->tr_length = TWA_SECTOR_SIZE; 2511 tr->tr_flags = TWA_CMD_DATA_IN | TWA_CMD_DATA_OUT; 2512 2513 /* Build the cmd pkt. */ 2514 cmd = &(tr->tr_command->command.cmd_pkt_7k); 2515 2516 tr->tr_command->cmd_hdr.header_desc.size_header = 128; 2517 2518 cmd->param.opcode = TWA_OP_GET_PARAM; 2519 cmd->param.sgl_offset = 2; 2520 cmd->param.size = 2; 2521 cmd->param.request_id = tr->tr_request_id; 2522 cmd->param.unit = 0; 2523 cmd->param.param_count = 1; 2524 2525 /* Specify which parameter we need. */ 2526 (*param)->table_id = table_id | TWA_9K_PARAM_DESCRIPTOR; 2527 (*param)->parameter_id = param_id; 2528 (*param)->parameter_size_bytes = param_size; 2529 2530 /* Submit the command. */ 2531 if (callback == NULL) { 2532 /* There's no call back; wait till the command completes. */ 2533 rv = twa_immediate_request(tr, TWA_REQUEST_TIMEOUT_PERIOD); 2534 2535 if (rv != 0) 2536 goto out; 2537 2538 if ((rv = cmd->param.status) != 0) { 2539 /* twa_drain_complete_queue will have done the unmapping */ 2540 goto out; 2541 } 2542 twa_release_request(tr); 2543 return (rv); 2544 } else { 2545 /* There's a call back. Simply submit the command. */ 2546 tr->tr_callback = callback; 2547 rv = twa_map_request(tr); 2548 return (rv); 2549 } 2550 out: 2551 if (tr) 2552 twa_release_request(tr); 2553 return(rv); 2554 } 2555 2556 /* 2557 * Function name: twa_set_param 2558 * Description: Set a firmware parameter. 2559 * 2560 * Input: sc -- ptr to per ctlr structure 2561 * table_id -- parameter table # 2562 * param_id -- index of the parameter in the table 2563 * param_size -- size of the parameter in bytes 2564 * callback -- ptr to function, if any, to be called 2565 * back on completion; NULL if no callback. 2566 * Output: None 2567 * Return value: 0 -- success 2568 * non-zero-- failure 2569 */ 2570 static int 2571 twa_set_param(struct twa_softc *sc, int table_id, int param_id, int param_size, 2572 void *data, void (* callback)(struct twa_request *tr)) 2573 { 2574 struct twa_request *tr; 2575 union twa_command_7k *cmd; 2576 struct twa_param_9k *param = NULL; 2577 int error = ENOMEM; 2578 2579 tr = twa_get_request(sc, 0); 2580 if (tr == NULL) 2581 return (EAGAIN); 2582 2583 tr->tr_cmd_pkt_type |= TWA_CMD_PKT_TYPE_INTERNAL; 2584 2585 /* Allocate memory to send data using. */ 2586 if ((param = (struct twa_param_9k *) 2587 malloc(TWA_SECTOR_SIZE, M_DEVBUF, M_NOWAIT)) == NULL) 2588 goto out; 2589 memset(param, 0, sizeof(struct twa_param_9k) - 1 + param_size); 2590 tr->tr_data = param; 2591 tr->tr_length = TWA_SECTOR_SIZE; 2592 tr->tr_flags = TWA_CMD_DATA_IN | TWA_CMD_DATA_OUT; 2593 2594 /* Build the cmd pkt. */ 2595 cmd = &(tr->tr_command->command.cmd_pkt_7k); 2596 2597 tr->tr_command->cmd_hdr.header_desc.size_header = 128; 2598 2599 cmd->param.opcode = TWA_OP_SET_PARAM; 2600 cmd->param.sgl_offset = 2; 2601 cmd->param.size = 2; 2602 cmd->param.request_id = tr->tr_request_id; 2603 cmd->param.unit = 0; 2604 cmd->param.param_count = 1; 2605 2606 /* Specify which parameter we want to set. */ 2607 param->table_id = table_id | TWA_9K_PARAM_DESCRIPTOR; 2608 param->parameter_id = param_id; 2609 param->parameter_size_bytes = param_size; 2610 memcpy(param->data, data, param_size); 2611 2612 /* Submit the command. */ 2613 if (callback == NULL) { 2614 /* There's no call back; wait till the command completes. */ 2615 error = twa_immediate_request(tr, TWA_REQUEST_TIMEOUT_PERIOD); 2616 if (error == ETIMEDOUT) 2617 /* clean-up done by twa_immediate_request */ 2618 return(error); 2619 if (error) 2620 goto out; 2621 if ((error = cmd->param.status)) { 2622 /* 2623 * twa_drain_complete_queue will have done the 2624 * unmapping. 2625 */ 2626 goto out; 2627 } 2628 free(param, M_DEVBUF); 2629 twa_release_request(tr); 2630 return(error); 2631 } else { 2632 /* There's a call back. Simply submit the command. */ 2633 tr->tr_callback = callback; 2634 if ((error = twa_map_request(tr))) 2635 goto out; 2636 2637 return (0); 2638 } 2639 out: 2640 if (param) 2641 free(param, M_DEVBUF); 2642 if (tr) 2643 twa_release_request(tr); 2644 return(error); 2645 } 2646 2647 /* 2648 * Function name: twa_init_connection 2649 * Description: Send init_connection cmd to firmware 2650 * 2651 * Input: sc -- ptr to per ctlr structure 2652 * message_credits -- max # of requests that we might send 2653 * down simultaneously. This will be 2654 * typically set to 256 at init-time or 2655 * after a reset, and to 1 at shutdown-time 2656 * set_features -- indicates if we intend to use 64-bit 2657 * sg, also indicates if we want to do a 2658 * basic or an extended init_connection; 2659 * 2660 * Note: The following input/output parameters are valid, only in case of an 2661 * extended init_connection: 2662 * 2663 * current_fw_srl -- srl of fw we are bundled 2664 * with, if any; 0 otherwise 2665 * current_fw_arch_id -- arch_id of fw we are bundled 2666 * with, if any; 0 otherwise 2667 * current_fw_branch -- branch # of fw we are bundled 2668 * with, if any; 0 otherwise 2669 * current_fw_build -- build # of fw we are bundled 2670 * with, if any; 0 otherwise 2671 * Output: fw_on_ctlr_srl -- srl of fw on ctlr 2672 * fw_on_ctlr_arch_id -- arch_id of fw on ctlr 2673 * fw_on_ctlr_branch -- branch # of fw on ctlr 2674 * fw_on_ctlr_build -- build # of fw on ctlr 2675 * init_connect_result -- result bitmap of fw response 2676 * Return value: 0 -- success 2677 * non-zero-- failure 2678 */ 2679 static int 2680 twa_init_connection(struct twa_softc *sc, uint16_t message_credits, 2681 uint32_t set_features, uint16_t current_fw_srl, 2682 uint16_t current_fw_arch_id, uint16_t current_fw_branch, 2683 uint16_t current_fw_build, uint16_t *fw_on_ctlr_srl, 2684 uint16_t *fw_on_ctlr_arch_id, uint16_t *fw_on_ctlr_branch, 2685 uint16_t *fw_on_ctlr_build, uint32_t *init_connect_result) 2686 { 2687 struct twa_request *tr; 2688 struct twa_command_init_connect *init_connect; 2689 int error = 1; 2690 2691 /* Get a request packet. */ 2692 if ((tr = twa_get_request(sc, 0)) == NULL) 2693 goto out; 2694 tr->tr_cmd_pkt_type |= TWA_CMD_PKT_TYPE_INTERNAL; 2695 /* Build the cmd pkt. */ 2696 init_connect = &(tr->tr_command->command.cmd_pkt_7k.init_connect); 2697 2698 tr->tr_command->cmd_hdr.header_desc.size_header = 128; 2699 2700 init_connect->opcode = TWA_OP_INIT_CONNECTION; 2701 init_connect->request_id = tr->tr_request_id; 2702 init_connect->message_credits = message_credits; 2703 init_connect->features = set_features; 2704 if (TWA_64BIT_ADDRESSES) { 2705 printf("64 bit addressing supported for scatter/gather list\n"); 2706 init_connect->features |= TWA_64BIT_SG_ADDRESSES; 2707 } 2708 if (set_features & TWA_EXTENDED_INIT_CONNECT) { 2709 /* 2710 * Fill in the extra fields needed for 2711 * an extended init_connect. 2712 */ 2713 init_connect->size = 6; 2714 init_connect->fw_srl = current_fw_srl; 2715 init_connect->fw_arch_id = current_fw_arch_id; 2716 init_connect->fw_branch = current_fw_branch; 2717 } else 2718 init_connect->size = 3; 2719 2720 /* Submit the command, and wait for it to complete. */ 2721 error = twa_immediate_request(tr, TWA_REQUEST_TIMEOUT_PERIOD); 2722 if (error == ETIMEDOUT) 2723 return(error); /* clean-up done by twa_immediate_request */ 2724 if (error) 2725 goto out; 2726 if ((error = init_connect->status)) { 2727 /* twa_drain_complete_queue will have done the unmapping */ 2728 goto out; 2729 } 2730 if (set_features & TWA_EXTENDED_INIT_CONNECT) { 2731 *fw_on_ctlr_srl = init_connect->fw_srl; 2732 *fw_on_ctlr_arch_id = init_connect->fw_arch_id; 2733 *fw_on_ctlr_branch = init_connect->fw_branch; 2734 *fw_on_ctlr_build = init_connect->fw_build; 2735 *init_connect_result = init_connect->result; 2736 } 2737 twa_release_request(tr); 2738 return(error); 2739 2740 out: 2741 if (tr) 2742 twa_release_request(tr); 2743 return(error); 2744 } 2745 2746 static int 2747 twa_reset(struct twa_softc *sc) 2748 { 2749 int s; 2750 int error = 0; 2751 2752 /* 2753 * Disable interrupts from the controller, and mask any 2754 * accidental entry into our interrupt handler. 2755 */ 2756 twa_outl(sc, TWA_CONTROL_REGISTER_OFFSET, 2757 TWA_CONTROL_DISABLE_INTERRUPTS); 2758 2759 s = splbio(); 2760 2761 /* Soft reset the controller. */ 2762 if ((error = twa_soft_reset(sc))) 2763 goto out; 2764 2765 /* Re-establish logical connection with the controller. */ 2766 if ((error = twa_init_connection(sc, TWA_INIT_MESSAGE_CREDITS, 2767 0, 0, 0, 0, 0, 2768 NULL, NULL, NULL, NULL, NULL))) { 2769 goto out; 2770 } 2771 /* 2772 * Complete all requests in the complete queue; error back all requests 2773 * in the busy queue. Any internal requests will be simply freed. 2774 * Re-submit any requests in the pending queue. 2775 */ 2776 twa_drain_busy_queue(sc); 2777 2778 out: 2779 splx(s); 2780 /* 2781 * Enable interrupts, and also clear attention and response interrupts. 2782 */ 2783 twa_outl(sc, TWA_CONTROL_REGISTER_OFFSET, 2784 TWA_CONTROL_CLEAR_ATTENTION_INTERRUPT | 2785 TWA_CONTROL_UNMASK_RESPONSE_INTERRUPT | 2786 TWA_CONTROL_ENABLE_INTERRUPTS); 2787 return(error); 2788 } 2789 2790 static int 2791 twa_soft_reset(struct twa_softc *sc) 2792 { 2793 uint32_t status_reg; 2794 2795 twa_outl(sc, TWA_CONTROL_REGISTER_OFFSET, 2796 TWA_CONTROL_ISSUE_SOFT_RESET | 2797 TWA_CONTROL_CLEAR_HOST_INTERRUPT | 2798 TWA_CONTROL_CLEAR_ATTENTION_INTERRUPT | 2799 TWA_CONTROL_MASK_COMMAND_INTERRUPT | 2800 TWA_CONTROL_MASK_RESPONSE_INTERRUPT | 2801 TWA_CONTROL_DISABLE_INTERRUPTS); 2802 2803 if (twa_wait_status(sc, TWA_STATUS_MICROCONTROLLER_READY | 2804 TWA_STATUS_ATTENTION_INTERRUPT, 30)) { 2805 aprint_error_dev(&sc->twa_dv, "no attention interrupt after reset.\n"); 2806 return(1); 2807 } 2808 twa_outl(sc, TWA_CONTROL_REGISTER_OFFSET, 2809 TWA_CONTROL_CLEAR_ATTENTION_INTERRUPT); 2810 2811 if (twa_drain_response_queue(sc)) { 2812 aprint_error_dev(&sc->twa_dv, "cannot drain response queue.\n"); 2813 return(1); 2814 } 2815 if (twa_drain_aen_queue(sc)) { 2816 aprint_error_dev(&sc->twa_dv, "cannot drain AEN queue.\n"); 2817 return(1); 2818 } 2819 if (twa_find_aen(sc, TWA_AEN_SOFT_RESET)) { 2820 aprint_error_dev(&sc->twa_dv, "reset not reported by controller.\n"); 2821 return(1); 2822 } 2823 status_reg = twa_inl(sc, TWA_STATUS_REGISTER_OFFSET); 2824 if (TWA_STATUS_ERRORS(status_reg) || 2825 twa_check_ctlr_state(sc, status_reg)) { 2826 aprint_error_dev(&sc->twa_dv, "controller errors detected.\n"); 2827 return(1); 2828 } 2829 return(0); 2830 } 2831 2832 static int 2833 twa_wait_status(struct twa_softc *sc, uint32_t status, uint32_t timeout) 2834 { 2835 struct timeval t1; 2836 time_t end_time; 2837 uint32_t status_reg; 2838 2839 timeout = (timeout * 1000 * 100); 2840 2841 microtime(&t1); 2842 2843 end_time = t1.tv_usec + timeout; 2844 2845 do { 2846 status_reg = twa_inl(sc, TWA_STATUS_REGISTER_OFFSET); 2847 /* got the required bit(s)? */ 2848 if ((status_reg & status) == status) 2849 return(0); 2850 DELAY(100000); 2851 microtime(&t1); 2852 } while (t1.tv_usec <= end_time); 2853 2854 return(1); 2855 } 2856 2857 static int 2858 twa_fetch_aen(struct twa_softc *sc) 2859 { 2860 struct twa_request *tr; 2861 int s, error = 0; 2862 2863 s = splbio(); 2864 2865 if ((tr = twa_get_request(sc, TWA_CMD_AEN)) == NULL) { 2866 splx(s); 2867 return(EIO); 2868 } 2869 tr->tr_cmd_pkt_type |= TWA_CMD_PKT_TYPE_INTERNAL; 2870 tr->tr_callback = twa_aen_callback; 2871 tr->tr_data = malloc(TWA_SECTOR_SIZE, M_DEVBUF, M_NOWAIT); 2872 if (twa_request_sense(tr, 0) != 0) { 2873 if (tr->tr_data) 2874 free(tr->tr_data, M_DEVBUF); 2875 twa_release_request(tr); 2876 error = 1; 2877 } 2878 splx(s); 2879 2880 return(error); 2881 } 2882 2883 /* 2884 * Function name: twa_aen_callback 2885 * Description: Callback for requests to fetch AEN's. 2886 * 2887 * Input: tr -- ptr to completed request pkt 2888 * Output: None 2889 * Return value: None 2890 */ 2891 static void 2892 twa_aen_callback(struct twa_request *tr) 2893 { 2894 int i; 2895 int fetch_more_aens = 0; 2896 struct twa_softc *sc = tr->tr_sc; 2897 struct twa_command_header *cmd_hdr = 2898 (struct twa_command_header *)(tr->tr_data); 2899 struct twa_command_9k *cmd = 2900 &(tr->tr_command->command.cmd_pkt_9k); 2901 2902 if (! cmd->status) { 2903 if ((tr->tr_cmd_pkt_type & TWA_CMD_PKT_TYPE_9K) && 2904 (cmd->cdb[0] == 0x3 /* REQUEST_SENSE */)) 2905 if (twa_enqueue_aen(sc, cmd_hdr) 2906 != TWA_AEN_QUEUE_EMPTY) 2907 fetch_more_aens = 1; 2908 } else { 2909 cmd_hdr->err_specific_desc[sizeof(cmd_hdr->err_specific_desc) - 1] = '\0'; 2910 for (i = 0; i < 18; i++) 2911 printf("%x\t", tr->tr_command->cmd_hdr.sense_data[i]); 2912 2913 printf(""); /* print new line */ 2914 2915 for (i = 0; i < 128; i++) 2916 printf("%x\t", ((int8_t *)(tr->tr_data))[i]); 2917 } 2918 if (tr->tr_data) 2919 free(tr->tr_data, M_DEVBUF); 2920 twa_release_request(tr); 2921 2922 if (fetch_more_aens) 2923 twa_fetch_aen(sc); 2924 } 2925 2926 /* 2927 * Function name: twa_enqueue_aen 2928 * Description: Queues AEN's to be supplied to user-space tools on request. 2929 * 2930 * Input: sc -- ptr to per ctlr structure 2931 * cmd_hdr -- ptr to hdr of fw cmd pkt, from where the AEN 2932 * details can be retrieved. 2933 * Output: None 2934 * Return value: None 2935 */ 2936 static uint16_t 2937 twa_enqueue_aen(struct twa_softc *sc, struct twa_command_header *cmd_hdr) 2938 { 2939 int rv, s; 2940 struct tw_cl_event_packet *event; 2941 uint16_t aen_code; 2942 unsigned long sync_time; 2943 2944 s = splbio(); 2945 aen_code = cmd_hdr->status_block.error; 2946 2947 switch (aen_code) { 2948 case TWA_AEN_SYNC_TIME_WITH_HOST: 2949 2950 sync_time = (time_second - (3 * 86400)) % 604800; 2951 rv = twa_set_param(sc, TWA_PARAM_TIME_TABLE, 2952 TWA_PARAM_TIME_SchedulerTime, 4, 2953 &sync_time, twa_aen_callback); 2954 #ifdef DIAGNOSTIC 2955 if (rv != 0) 2956 aprint_error_dev(&sc->twa_dv, "unable to sync time with ctlr\n"); 2957 #endif 2958 break; 2959 2960 case TWA_AEN_QUEUE_EMPTY: 2961 break; 2962 2963 default: 2964 /* Queue the event. */ 2965 event = sc->twa_aen_queue[sc->twa_aen_head]; 2966 if (event->retrieved == TWA_AEN_NOT_RETRIEVED) 2967 sc->twa_aen_queue_overflow = TRUE; 2968 event->severity = 2969 cmd_hdr->status_block.substatus_block.severity; 2970 event->time_stamp_sec = time_second; 2971 event->aen_code = aen_code; 2972 event->retrieved = TWA_AEN_NOT_RETRIEVED; 2973 event->sequence_id = ++(sc->twa_current_sequence_id); 2974 cmd_hdr->err_specific_desc[sizeof(cmd_hdr->err_specific_desc) - 1] = '\0'; 2975 event->parameter_len = strlen(cmd_hdr->err_specific_desc); 2976 memcpy(event->parameter_data, cmd_hdr->err_specific_desc, 2977 event->parameter_len); 2978 2979 if (event->severity < TWA_AEN_SEVERITY_DEBUG) { 2980 printf("%s: AEN 0x%04X: %s: %s: %s\n", 2981 device_xname(&sc->twa_dv), 2982 aen_code, 2983 twa_aen_severity_table[event->severity], 2984 twa_find_msg_string(twa_aen_table, aen_code), 2985 event->parameter_data); 2986 } 2987 2988 if ((sc->twa_aen_head + 1) == TWA_Q_LENGTH) 2989 sc->twa_aen_queue_wrapped = TRUE; 2990 sc->twa_aen_head = (sc->twa_aen_head + 1) % TWA_Q_LENGTH; 2991 break; 2992 } /* switch */ 2993 splx(s); 2994 2995 return (aen_code); 2996 } 2997 2998 /* 2999 * Function name: twa_find_aen 3000 * Description: Reports whether a given AEN ever occurred. 3001 * 3002 * Input: sc -- ptr to per ctlr structure 3003 * aen_code-- AEN to look for 3004 * Output: None 3005 * Return value: 0 -- success 3006 * non-zero-- failure 3007 */ 3008 static int 3009 twa_find_aen(struct twa_softc *sc, uint16_t aen_code) 3010 { 3011 uint32_t last_index; 3012 int s; 3013 int i; 3014 3015 s = splbio(); 3016 3017 if (sc->twa_aen_queue_wrapped) 3018 last_index = sc->twa_aen_head; 3019 else 3020 last_index = 0; 3021 3022 i = sc->twa_aen_head; 3023 do { 3024 i = (i + TWA_Q_LENGTH - 1) % TWA_Q_LENGTH; 3025 if ((sc->twa_aen_queue[i])->aen_code == aen_code) { 3026 splx(s); 3027 return(0); 3028 } 3029 } while (i != last_index); 3030 3031 splx(s); 3032 return(1); 3033 } 3034 3035 static inline void 3036 twa_request_init(struct twa_request *tr, int flags) 3037 { 3038 tr->tr_data = NULL; 3039 tr->tr_real_data = NULL; 3040 tr->tr_length = 0; 3041 tr->tr_real_length = 0; 3042 tr->tr_status = TWA_CMD_SETUP;/* command is in setup phase */ 3043 tr->tr_flags = flags; 3044 tr->tr_error = 0; 3045 tr->tr_callback = NULL; 3046 tr->tr_cmd_pkt_type = 0; 3047 tr->bp = 0; 3048 3049 /* 3050 * Look at the status field in the command packet to see how 3051 * it completed the last time it was used, and zero out only 3052 * the portions that might have changed. Note that we don't 3053 * care to zero out the sglist. 3054 */ 3055 if (tr->tr_command->command.cmd_pkt_9k.status) 3056 memset(tr->tr_command, 0, 3057 sizeof(struct twa_command_header) + 28); 3058 else 3059 memset(&(tr->tr_command->command), 0, 28); 3060 } 3061 3062 struct twa_request * 3063 twa_get_request_wait(struct twa_softc *sc, int flags) 3064 { 3065 struct twa_request *tr; 3066 int s; 3067 3068 KASSERT((flags & TWA_CMD_AEN) == 0); 3069 3070 s = splbio(); 3071 while ((tr = TAILQ_FIRST(&sc->twa_free)) == NULL) { 3072 sc->twa_sc_flags |= TWA_STATE_REQUEST_WAIT; 3073 (void) tsleep(&sc->twa_free, PRIBIO, "twaccb", hz); 3074 } 3075 TAILQ_REMOVE(&sc->twa_free, tr, tr_link); 3076 3077 splx(s); 3078 3079 twa_request_init(tr, flags); 3080 3081 return(tr); 3082 } 3083 3084 struct twa_request * 3085 twa_get_request(struct twa_softc *sc, int flags) 3086 { 3087 int s; 3088 struct twa_request *tr; 3089 3090 /* Get a free request packet. */ 3091 s = splbio(); 3092 if (__predict_false((flags & TWA_CMD_AEN) != 0)) { 3093 3094 if ((sc->sc_twa_request->tr_flags & TWA_CMD_AEN_BUSY) == 0) { 3095 tr = sc->sc_twa_request; 3096 flags |= TWA_CMD_AEN_BUSY; 3097 } else { 3098 splx(s); 3099 return (NULL); 3100 } 3101 } else { 3102 if (__predict_false((tr = 3103 TAILQ_FIRST(&sc->twa_free)) == NULL)) { 3104 splx(s); 3105 return (NULL); 3106 } 3107 TAILQ_REMOVE(&sc->twa_free, tr, tr_link); 3108 } 3109 splx(s); 3110 3111 twa_request_init(tr, flags); 3112 3113 return(tr); 3114 } 3115 3116 /* 3117 * Print some information about the controller 3118 */ 3119 static void 3120 twa_describe_controller(struct twa_softc *sc) 3121 { 3122 struct twa_param_9k *p[10]; 3123 int i, rv = 0; 3124 uint32_t dsize; 3125 uint8_t ports; 3126 3127 memset(p, sizeof(struct twa_param_9k *), 10); 3128 3129 /* Get the port count. */ 3130 rv |= twa_get_param(sc, TWA_PARAM_CONTROLLER, 3131 TWA_PARAM_CONTROLLER_PortCount, 1, NULL, &p[0]); 3132 3133 /* get version strings */ 3134 rv |= twa_get_param(sc, TWA_PARAM_VERSION, TWA_PARAM_VERSION_FW, 3135 16, NULL, &p[1]); 3136 rv |= twa_get_param(sc, TWA_PARAM_VERSION, TWA_PARAM_VERSION_BIOS, 3137 16, NULL, &p[2]); 3138 rv |= twa_get_param(sc, TWA_PARAM_VERSION, TWA_PARAM_VERSION_Mon, 3139 16, NULL, &p[3]); 3140 rv |= twa_get_param(sc, TWA_PARAM_VERSION, TWA_PARAM_VERSION_PCBA, 3141 8, NULL, &p[4]); 3142 rv |= twa_get_param(sc, TWA_PARAM_VERSION, TWA_PARAM_VERSION_ATA, 3143 8, NULL, &p[5]); 3144 rv |= twa_get_param(sc, TWA_PARAM_VERSION, TWA_PARAM_VERSION_PCI, 3145 8, NULL, &p[6]); 3146 rv |= twa_get_param(sc, TWA_PARAM_DRIVESUMMARY, TWA_PARAM_DRIVESTATUS, 3147 16, NULL, &p[7]); 3148 3149 if (rv) { 3150 /* some error occurred */ 3151 aprint_error_dev(&sc->twa_dv, "failed to fetch version information\n"); 3152 goto bail; 3153 } 3154 3155 ports = *(uint8_t *)(p[0]->data); 3156 3157 aprint_normal_dev(&sc->twa_dv, "%d ports, Firmware %.16s, BIOS %.16s\n", 3158 ports, p[1]->data, p[2]->data); 3159 3160 aprint_verbose_dev(&sc->twa_dv, "Monitor %.16s, PCB %.8s, Achip %.8s, Pchip %.8s\n", 3161 p[3]->data, p[4]->data, 3162 p[5]->data, p[6]->data); 3163 3164 for (i = 0; i < ports; i++) { 3165 3166 if ((*((char *)(p[7]->data + i)) & TWA_DRIVE_DETECTED) == 0) 3167 continue; 3168 3169 rv = twa_get_param(sc, TWA_PARAM_DRIVE_TABLE + i, 3170 TWA_PARAM_DRIVEMODELINDEX, 3171 TWA_PARAM_DRIVEMODEL_LENGTH, NULL, &p[8]); 3172 3173 if (rv != 0) { 3174 aprint_error_dev(&sc->twa_dv, "unable to get drive model for port" 3175 " %d\n", i); 3176 continue; 3177 } 3178 3179 rv = twa_get_param(sc, TWA_PARAM_DRIVE_TABLE + i, 3180 TWA_PARAM_DRIVESIZEINDEX, 3181 TWA_PARAM_DRIVESIZE_LENGTH, NULL, &p[9]); 3182 3183 if (rv != 0) { 3184 aprint_error_dev(&sc->twa_dv, "unable to get drive size" 3185 " for port %d\n", i); 3186 free(p[8], M_DEVBUF); 3187 continue; 3188 } 3189 3190 dsize = *(uint32_t *)(p[9]->data); 3191 3192 aprint_verbose_dev(&sc->twa_dv, "port %d: %.40s %d MB\n", 3193 i, p[8]->data, dsize / 2048); 3194 3195 if (p[8]) 3196 free(p[8], M_DEVBUF); 3197 if (p[9]) 3198 free(p[9], M_DEVBUF); 3199 } 3200 bail: 3201 if (p[0]) 3202 free(p[0], M_DEVBUF); 3203 if (p[1]) 3204 free(p[1], M_DEVBUF); 3205 if (p[2]) 3206 free(p[2], M_DEVBUF); 3207 if (p[3]) 3208 free(p[3], M_DEVBUF); 3209 if (p[4]) 3210 free(p[4], M_DEVBUF); 3211 if (p[5]) 3212 free(p[5], M_DEVBUF); 3213 if (p[6]) 3214 free(p[6], M_DEVBUF); 3215 } 3216 3217 /* 3218 * Function name: twa_check_ctlr_state 3219 * Description: Makes sure that the fw status register reports a 3220 * proper status. 3221 * 3222 * Input: sc -- ptr to per ctlr structure 3223 * status_reg -- value in the status register 3224 * Output: None 3225 * Return value: 0 -- no errors 3226 * non-zero-- errors 3227 */ 3228 static int 3229 twa_check_ctlr_state(struct twa_softc *sc, uint32_t status_reg) 3230 { 3231 int result = 0; 3232 struct timeval t1; 3233 static time_t last_warning[2] = {0, 0}; 3234 3235 /* Check if the 'micro-controller ready' bit is not set. */ 3236 if ((status_reg & TWA_STATUS_EXPECTED_BITS) != 3237 TWA_STATUS_EXPECTED_BITS) { 3238 3239 microtime(&t1); 3240 3241 last_warning[0] += (5 * 1000 * 100); 3242 3243 if (t1.tv_usec > last_warning[0]) { 3244 microtime(&t1); 3245 last_warning[0] = t1.tv_usec; 3246 } 3247 result = 1; 3248 } 3249 3250 /* Check if any error bits are set. */ 3251 if ((status_reg & TWA_STATUS_UNEXPECTED_BITS) != 0) { 3252 3253 microtime(&t1); 3254 last_warning[1] += (5 * 1000 * 100); 3255 if (t1.tv_usec > last_warning[1]) { 3256 microtime(&t1); 3257 last_warning[1] = t1.tv_usec; 3258 } 3259 if (status_reg & TWA_STATUS_PCI_PARITY_ERROR_INTERRUPT) { 3260 aprint_error_dev(&sc->twa_dv, "clearing PCI parity error " 3261 "re-seat/move/replace card.\n"); 3262 twa_outl(sc, TWA_CONTROL_REGISTER_OFFSET, 3263 TWA_CONTROL_CLEAR_PARITY_ERROR); 3264 pci_conf_write(sc->pc, sc->tag, 3265 PCI_COMMAND_STATUS_REG, 3266 TWA_PCI_CONFIG_CLEAR_PARITY_ERROR); 3267 result = 1; 3268 } 3269 if (status_reg & TWA_STATUS_PCI_ABORT_INTERRUPT) { 3270 aprint_error_dev(&sc->twa_dv, "clearing PCI abort\n"); 3271 twa_outl(sc, TWA_CONTROL_REGISTER_OFFSET, 3272 TWA_CONTROL_CLEAR_PCI_ABORT); 3273 pci_conf_write(sc->pc, sc->tag, 3274 PCI_COMMAND_STATUS_REG, 3275 TWA_PCI_CONFIG_CLEAR_PCI_ABORT); 3276 result = 1; 3277 } 3278 if (status_reg & TWA_STATUS_QUEUE_ERROR_INTERRUPT) { 3279 aprint_error_dev(&sc->twa_dv, "clearing controller queue error\n"); 3280 twa_outl(sc, TWA_CONTROL_REGISTER_OFFSET, 3281 TWA_CONTROL_CLEAR_PCI_ABORT); 3282 result = 1; 3283 } 3284 if (status_reg & TWA_STATUS_SBUF_WRITE_ERROR) { 3285 aprint_error_dev(&sc->twa_dv, "clearing SBUF write error\n"); 3286 twa_outl(sc, TWA_CONTROL_REGISTER_OFFSET, 3287 TWA_CONTROL_CLEAR_SBUF_WRITE_ERROR); 3288 result = 1; 3289 } 3290 if (status_reg & TWA_STATUS_MICROCONTROLLER_ERROR) { 3291 aprint_error_dev(&sc->twa_dv, "micro-controller error\n"); 3292 result = 1; 3293 } 3294 } 3295 return(result); 3296 } 3297
Indexes created Tue Sep 23 07:09:52 GMT 2025