1 /* 2 * QLOGIC LINUX SOFTWARE 3 * 4 * QLogic ISP2x00 device driver for Linux 2.6.x 5 * Copyright (C) 2003-2004 QLogic Corporation 6 * (www.qlogic.com) 7 * 8 * This program is free software; you can redistribute it and/or modify it 9 * under the terms of the GNU General Public License as published by the 10 * Free Software Foundation; either version 2, or (at your option) any 11 * later version. 12 * 13 * This program is distributed in the hope that it will be useful, but 14 * WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 * General Public License for more details. 17 * 18 */ 19 #include "qla_def.h" 20 21 #include <linux/delay.h> 22 #include <scsi/scsi_transport_fc.h> 23 24 #include "qla_devtbl.h" 25 26 /* XXX(hch): this is ugly, but we don't want to pull in exioctl.h */ 27 #ifndef EXT_IS_LUN_BIT_SET 28 #define EXT_IS_LUN_BIT_SET(P,L) \ 29 (((P)->mask[L/8] & (0x80 >> (L%8)))?1:0) 30 #define EXT_SET_LUN_BIT(P,L) \ 31 ((P)->mask[L/8] |= (0x80 >> (L%8))) 32 #endif 33 34 /* 35 * QLogic ISP2x00 Hardware Support Function Prototypes. 36 */ 37 static int qla2x00_pci_config(scsi_qla_host_t *); 38 static int qla2x00_isp_firmware(scsi_qla_host_t *); 39 static void qla2x00_reset_chip(scsi_qla_host_t *); 40 static int qla2x00_chip_diag(scsi_qla_host_t *); 41 static void qla2x00_resize_request_q(scsi_qla_host_t *); 42 static int qla2x00_setup_chip(scsi_qla_host_t *); 43 static void qla2x00_init_response_q_entries(scsi_qla_host_t *); 44 static int qla2x00_init_rings(scsi_qla_host_t *); 45 static int qla2x00_fw_ready(scsi_qla_host_t *); 46 static int qla2x00_configure_hba(scsi_qla_host_t *); 47 static int qla2x00_nvram_config(scsi_qla_host_t *); 48 static int qla2x00_configure_loop(scsi_qla_host_t *); 49 static int qla2x00_configure_local_loop(scsi_qla_host_t *); 50 static void qla2x00_update_fcport(scsi_qla_host_t *, fc_port_t *); 51 static int qla2x00_configure_fabric(scsi_qla_host_t *); 52 static int qla2x00_find_all_fabric_devs(scsi_qla_host_t *, struct list_head *); 53 static int qla2x00_device_resync(scsi_qla_host_t *); 54 static int qla2x00_fabric_dev_login(scsi_qla_host_t *, fc_port_t *, 55 uint16_t *); 56 57 static int qla2x00_restart_isp(scsi_qla_host_t *); 58 static void qla2x00_reset_adapter(scsi_qla_host_t *); 59 60 /****************************************************************************/ 61 /* QLogic ISP2x00 Hardware Support Functions. */ 62 /****************************************************************************/ 63 64 /* 65 * qla2x00_initialize_adapter 66 * Initialize board. 67 * 68 * Input: 69 * ha = adapter block pointer. 70 * 71 * Returns: 72 * 0 = success 73 */ 74 int 75 qla2x00_initialize_adapter(scsi_qla_host_t *ha) 76 { 77 int rval; 78 uint8_t restart_risc = 0; 79 uint8_t retry; 80 uint32_t wait_time; 81 82 /* Clear adapter flags. */ 83 ha->flags.online = 0; 84 ha->flags.reset_active = 0; 85 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME); 86 atomic_set(&ha->loop_state, LOOP_DOWN); 87 ha->device_flags = 0; 88 ha->sns_retry_cnt = 0; 89 ha->dpc_flags = 0; 90 ha->failback_delay = 0; 91 ha->flags.management_server_logged_in = 0; 92 ha->marker_needed = 0; 93 ha->mbx_flags = 0; 94 ha->isp_abort_cnt = 0; 95 ha->beacon_blink_led = 0; 96 97 rval = qla2x00_pci_config(ha); 98 if (rval) { 99 DEBUG2(printk("scsi(%ld): Unable to configure PCI space=n", 100 ha->host_no)); 101 return (rval); 102 } 103 104 qla2x00_reset_chip(ha); 105 106 qla_printk(KERN_INFO, ha, "Configure NVRAM parameters...\n"); 107 qla2x00_nvram_config(ha); 108 109 qla_printk(KERN_INFO, ha, "Verifying loaded RISC code...\n"); 110 111 retry = 10; 112 /* 113 * Try to configure the loop. 114 */ 115 do { 116 restart_risc = 0; 117 118 /* If firmware needs to be loaded */ 119 if (qla2x00_isp_firmware(ha) != QLA_SUCCESS) { 120 if ((rval = qla2x00_chip_diag(ha)) == QLA_SUCCESS) { 121 rval = qla2x00_setup_chip(ha); 122 } 123 } 124 125 if (rval == QLA_SUCCESS && 126 (rval = qla2x00_init_rings(ha)) == QLA_SUCCESS) { 127 check_fw_ready_again: 128 /* 129 * Wait for a successful LIP up to a maximum 130 * of (in seconds): RISC login timeout value, 131 * RISC retry count value, and port down retry 132 * value OR a minimum of 4 seconds OR If no 133 * cable, only 5 seconds. 134 */ 135 rval = qla2x00_fw_ready(ha); 136 if (rval == QLA_SUCCESS) { 137 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags); 138 139 /* 140 * Wait at most MAX_TARGET RSCNs for a stable 141 * link. 142 */ 143 wait_time = 256; 144 do { 145 clear_bit(LOOP_RESYNC_NEEDED, 146 &ha->dpc_flags); 147 rval = qla2x00_configure_loop(ha); 148 149 if (test_and_clear_bit(ISP_ABORT_NEEDED, 150 &ha->dpc_flags)) { 151 restart_risc = 1; 152 break; 153 } 154 155 /* 156 * If loop state change while we were 157 * discoverying devices then wait for 158 * LIP to complete 159 */ 160 161 if (atomic_read(&ha->loop_state) == 162 LOOP_DOWN && retry--) { 163 goto check_fw_ready_again; 164 } 165 wait_time--; 166 } while (!atomic_read(&ha->loop_down_timer) && 167 retry && 168 wait_time && 169 (test_bit(LOOP_RESYNC_NEEDED, 170 &ha->dpc_flags))); 171 172 if (wait_time == 0) 173 rval = QLA_FUNCTION_FAILED; 174 if (ha->mem_err) 175 restart_risc = 1; 176 } else if (ha->device_flags & DFLG_NO_CABLE) 177 /* If no cable, then all is good. */ 178 rval = QLA_SUCCESS; 179 } 180 } while (restart_risc && retry--); 181 182 if (rval == QLA_SUCCESS) { 183 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags); 184 ha->marker_needed = 1; 185 qla2x00_marker(ha, 0, 0, MK_SYNC_ALL); 186 ha->marker_needed = 0; 187 188 ha->flags.online = 1; 189 } else { 190 DEBUG2_3(printk("%s(): **** FAILED ****\n", __func__)); 191 } 192 193 return (rval); 194 } 195 196 /** 197 * qla2x00_pci_config() - Setup device PCI configuration registers. 198 * @ha: HA context 199 * 200 * Returns 0 on success. 201 */ 202 static int 203 qla2x00_pci_config(scsi_qla_host_t *ha) 204 { 205 uint16_t w, mwi; 206 unsigned long flags = 0; 207 uint32_t cnt; 208 209 qla_printk(KERN_INFO, ha, "Configuring PCI space...\n"); 210 211 /* 212 * Turn on PCI master; for system BIOSes that don't turn it on by 213 * default. 214 */ 215 pci_set_master(ha->pdev); 216 mwi = 0; 217 if (pci_set_mwi(ha->pdev)) 218 mwi = PCI_COMMAND_INVALIDATE; 219 pci_read_config_word(ha->pdev, PCI_REVISION_ID, &ha->revision); 220 221 if (!ha->iobase) 222 return (QLA_FUNCTION_FAILED); 223 224 /* 225 * We want to respect framework's setting of PCI configuration space 226 * command register and also want to make sure that all bits of 227 * interest to us are properly set in command register. 228 */ 229 pci_read_config_word(ha->pdev, PCI_COMMAND, &w); 230 w |= mwi | (PCI_COMMAND_PARITY | PCI_COMMAND_SERR); 231 232 /* Get PCI bus information. */ 233 spin_lock_irqsave(&ha->hardware_lock, flags); 234 ha->pci_attr = RD_REG_WORD(&ha->iobase->ctrl_status); 235 spin_unlock_irqrestore(&ha->hardware_lock, flags); 236 237 if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) { 238 pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80); 239 240 /* PCI Specification Revision 2.3 changes */ 241 if (IS_QLA2322(ha) || IS_QLA6322(ha)) 242 /* Command Register - Reset Interrupt Disable. */ 243 w &= ~PCI_COMMAND_INTX_DISABLE; 244 245 /* 246 * If this is a 2300 card and not 2312, reset the 247 * COMMAND_INVALIDATE due to a bug in the 2300. Unfortunately, 248 * the 2310 also reports itself as a 2300 so we need to get the 249 * fb revision level -- a 6 indicates it really is a 2300 and 250 * not a 2310. 251 */ 252 if (IS_QLA2300(ha)) { 253 spin_lock_irqsave(&ha->hardware_lock, flags); 254 255 /* Pause RISC. */ 256 WRT_REG_WORD(&ha->iobase->hccr, HCCR_PAUSE_RISC); 257 for (cnt = 0; cnt < 30000; cnt++) { 258 if ((RD_REG_WORD(&ha->iobase->hccr) & 259 HCCR_RISC_PAUSE) != 0) 260 break; 261 262 udelay(10); 263 } 264 265 /* Select FPM registers. */ 266 WRT_REG_WORD(&ha->iobase->ctrl_status, 0x20); 267 RD_REG_WORD(&ha->iobase->ctrl_status); 268 269 /* Get the fb rev level */ 270 ha->fb_rev = RD_FB_CMD_REG(ha, ha->iobase); 271 272 if (ha->fb_rev == FPM_2300) 273 w &= ~PCI_COMMAND_INVALIDATE; 274 275 /* Deselect FPM registers. */ 276 WRT_REG_WORD(&ha->iobase->ctrl_status, 0x0); 277 RD_REG_WORD(&ha->iobase->ctrl_status); 278 279 /* Release RISC module. */ 280 WRT_REG_WORD(&ha->iobase->hccr, HCCR_RELEASE_RISC); 281 for (cnt = 0; cnt < 30000; cnt++) { 282 if ((RD_REG_WORD(&ha->iobase->hccr) & 283 HCCR_RISC_PAUSE) == 0) 284 break; 285 286 udelay(10); 287 } 288 289 spin_unlock_irqrestore(&ha->hardware_lock, flags); 290 } 291 } 292 293 pci_write_config_word(ha->pdev, PCI_COMMAND, w); 294 295 /* Reset expansion ROM address decode enable */ 296 pci_read_config_word(ha->pdev, PCI_ROM_ADDRESS, &w); 297 w &= ~PCI_ROM_ADDRESS_ENABLE; 298 pci_write_config_word(ha->pdev, PCI_ROM_ADDRESS, w); 299 300 return (QLA_SUCCESS); 301 } 302 303 /** 304 * qla2x00_isp_firmware() - Choose firmware image. 305 * @ha: HA context 306 * 307 * Returns 0 on success. 308 */ 309 static int 310 qla2x00_isp_firmware(scsi_qla_host_t *ha) 311 { 312 int rval; 313 314 /* Assume loading risc code */ 315 rval = QLA_FUNCTION_FAILED; 316 317 if (ha->flags.disable_risc_code_load) { 318 DEBUG2(printk("scsi(%ld): RISC CODE NOT loaded\n", 319 ha->host_no)); 320 qla_printk(KERN_INFO, ha, "RISC CODE NOT loaded\n"); 321 322 /* Verify checksum of loaded RISC code. */ 323 rval = qla2x00_verify_checksum(ha); 324 } 325 326 if (rval) { 327 DEBUG2_3(printk("scsi(%ld): **** Load RISC code ****\n", 328 ha->host_no)); 329 } 330 331 return (rval); 332 } 333 334 /** 335 * qla2x00_reset_chip() - Reset ISP chip. 336 * @ha: HA context 337 * 338 * Returns 0 on success. 339 */ 340 static void 341 qla2x00_reset_chip(scsi_qla_host_t *ha) 342 { 343 unsigned long flags = 0; 344 device_reg_t __iomem *reg = ha->iobase; 345 uint32_t cnt; 346 unsigned long mbx_flags = 0; 347 uint16_t cmd; 348 349 /* Disable ISP interrupts. */ 350 qla2x00_disable_intrs(ha); 351 352 spin_lock_irqsave(&ha->hardware_lock, flags); 353 354 /* Turn off master enable */ 355 cmd = 0; 356 pci_read_config_word(ha->pdev, PCI_COMMAND, &cmd); 357 cmd &= ~PCI_COMMAND_MASTER; 358 pci_write_config_word(ha->pdev, PCI_COMMAND, cmd); 359 360 if (!IS_QLA2100(ha)) { 361 /* Pause RISC. */ 362 WRT_REG_WORD(®->hccr, HCCR_PAUSE_RISC); 363 if (IS_QLA2200(ha) || IS_QLA2300(ha)) { 364 for (cnt = 0; cnt < 30000; cnt++) { 365 if ((RD_REG_WORD(®->hccr) & 366 HCCR_RISC_PAUSE) != 0) 367 break; 368 udelay(100); 369 } 370 } else { 371 RD_REG_WORD(®->hccr); /* PCI Posting. */ 372 udelay(10); 373 } 374 375 /* Select FPM registers. */ 376 WRT_REG_WORD(®->ctrl_status, 0x20); 377 RD_REG_WORD(®->ctrl_status); /* PCI Posting. */ 378 379 /* FPM Soft Reset. */ 380 WRT_REG_WORD(®->fpm_diag_config, 0x100); 381 RD_REG_WORD(®->fpm_diag_config); /* PCI Posting. */ 382 383 /* Toggle Fpm Reset. */ 384 if (!IS_QLA2200(ha)) { 385 WRT_REG_WORD(®->fpm_diag_config, 0x0); 386 RD_REG_WORD(®->fpm_diag_config); /* PCI Posting. */ 387 } 388 389 /* Select frame buffer registers. */ 390 WRT_REG_WORD(®->ctrl_status, 0x10); 391 RD_REG_WORD(®->ctrl_status); /* PCI Posting. */ 392 393 /* Reset frame buffer FIFOs. */ 394 if (IS_QLA2200(ha)) { 395 WRT_FB_CMD_REG(ha, reg, 0xa000); 396 RD_FB_CMD_REG(ha, reg); /* PCI Posting. */ 397 } else { 398 WRT_FB_CMD_REG(ha, reg, 0x00fc); 399 400 /* Read back fb_cmd until zero or 3 seconds max */ 401 for (cnt = 0; cnt < 3000; cnt++) { 402 if ((RD_FB_CMD_REG(ha, reg) & 0xff) == 0) 403 break; 404 udelay(100); 405 } 406 } 407 408 /* Select RISC module registers. */ 409 WRT_REG_WORD(®->ctrl_status, 0); 410 RD_REG_WORD(®->ctrl_status); /* PCI Posting. */ 411 412 /* Reset RISC processor. */ 413 WRT_REG_WORD(®->hccr, HCCR_RESET_RISC); 414 RD_REG_WORD(®->hccr); /* PCI Posting. */ 415 416 /* Release RISC processor. */ 417 WRT_REG_WORD(®->hccr, HCCR_RELEASE_RISC); 418 RD_REG_WORD(®->hccr); /* PCI Posting. */ 419 } 420 421 WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); 422 WRT_REG_WORD(®->hccr, HCCR_CLR_HOST_INT); 423 424 /* Reset ISP chip. */ 425 WRT_REG_WORD(®->ctrl_status, CSR_ISP_SOFT_RESET); 426 427 /* Wait for RISC to recover from reset. */ 428 if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) { 429 /* 430 * It is necessary to for a delay here since the card doesn't 431 * respond to PCI reads during a reset. On some architectures 432 * this will result in an MCA. 433 */ 434 udelay(20); 435 for (cnt = 30000; cnt; cnt--) { 436 if ((RD_REG_WORD(®->ctrl_status) & 437 CSR_ISP_SOFT_RESET) == 0) 438 break; 439 udelay(100); 440 } 441 } else 442 udelay(10); 443 444 /* Reset RISC processor. */ 445 WRT_REG_WORD(®->hccr, HCCR_RESET_RISC); 446 447 WRT_REG_WORD(®->semaphore, 0); 448 449 /* Release RISC processor. */ 450 WRT_REG_WORD(®->hccr, HCCR_RELEASE_RISC); 451 RD_REG_WORD(®->hccr); /* PCI Posting. */ 452 453 if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) { 454 for (cnt = 0; cnt < 30000; cnt++) { 455 if (!(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) 456 spin_lock_irqsave(&ha->mbx_reg_lock, mbx_flags); 457 458 if (RD_MAILBOX_REG(ha, reg, 0) != MBS_BUSY) { 459 if (!(test_bit(ABORT_ISP_ACTIVE, 460 &ha->dpc_flags))) 461 spin_unlock_irqrestore( 462 &ha->mbx_reg_lock, mbx_flags); 463 break; 464 } 465 466 if (!(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) 467 spin_unlock_irqrestore(&ha->mbx_reg_lock, 468 mbx_flags); 469 470 udelay(100); 471 } 472 } else 473 udelay(100); 474 475 /* Turn on master enable */ 476 cmd |= PCI_COMMAND_MASTER; 477 pci_write_config_word(ha->pdev, PCI_COMMAND, cmd); 478 479 /* Disable RISC pause on FPM parity error. */ 480 if (!IS_QLA2100(ha)) { 481 WRT_REG_WORD(®->hccr, HCCR_DISABLE_PARITY_PAUSE); 482 RD_REG_WORD(®->hccr); /* PCI Posting. */ 483 } 484 485 spin_unlock_irqrestore(&ha->hardware_lock, flags); 486 } 487 488 /** 489 * qla2x00_chip_diag() - Test chip for proper operation. 490 * @ha: HA context 491 * 492 * Returns 0 on success. 493 */ 494 static int 495 qla2x00_chip_diag(scsi_qla_host_t *ha) 496 { 497 int rval; 498 device_reg_t __iomem *reg = ha->iobase; 499 unsigned long flags = 0; 500 uint16_t data; 501 uint32_t cnt; 502 uint16_t mb[5]; 503 504 /* Assume a failed state */ 505 rval = QLA_FUNCTION_FAILED; 506 507 DEBUG3(printk("scsi(%ld): Testing device at %lx.\n", 508 ha->host_no, (u_long)®->flash_address)); 509 510 spin_lock_irqsave(&ha->hardware_lock, flags); 511 512 /* Reset ISP chip. */ 513 WRT_REG_WORD(®->ctrl_status, CSR_ISP_SOFT_RESET); 514 515 /* 516 * We need to have a delay here since the card will not respond while 517 * in reset causing an MCA on some architectures. 518 */ 519 udelay(20); 520 data = qla2x00_debounce_register(®->ctrl_status); 521 for (cnt = 6000000 ; cnt && (data & CSR_ISP_SOFT_RESET); cnt--) { 522 udelay(5); 523 data = RD_REG_WORD(®->ctrl_status); 524 barrier(); 525 } 526 527 if (!cnt) 528 goto chip_diag_failed; 529 530 DEBUG3(printk("scsi(%ld): Reset register cleared by chip reset\n", 531 ha->host_no)); 532 533 /* Reset RISC processor. */ 534 WRT_REG_WORD(®->hccr, HCCR_RESET_RISC); 535 WRT_REG_WORD(®->hccr, HCCR_RELEASE_RISC); 536 537 /* Workaround for QLA2312 PCI parity error */ 538 if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) { 539 data = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 0)); 540 for (cnt = 6000000; cnt && (data == MBS_BUSY); cnt--) { 541 udelay(5); 542 data = RD_MAILBOX_REG(ha, reg, 0); 543 barrier(); 544 } 545 } else 546 udelay(10); 547 548 if (!cnt) 549 goto chip_diag_failed; 550 551 /* Check product ID of chip */ 552 DEBUG3(printk("scsi(%ld): Checking product ID of chip\n", ha->host_no)); 553 554 mb[1] = RD_MAILBOX_REG(ha, reg, 1); 555 mb[2] = RD_MAILBOX_REG(ha, reg, 2); 556 mb[3] = RD_MAILBOX_REG(ha, reg, 3); 557 mb[4] = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 4)); 558 if (mb[1] != PROD_ID_1 || (mb[2] != PROD_ID_2 && mb[2] != PROD_ID_2a) || 559 mb[3] != PROD_ID_3) { 560 qla_printk(KERN_WARNING, ha, 561 "Wrong product ID = 0x%x,0x%x,0x%x\n", mb[1], mb[2], mb[3]); 562 563 goto chip_diag_failed; 564 } 565 ha->product_id[0] = mb[1]; 566 ha->product_id[1] = mb[2]; 567 ha->product_id[2] = mb[3]; 568 ha->product_id[3] = mb[4]; 569 570 /* Adjust fw RISC transfer size */ 571 if (ha->request_q_length > 1024) 572 ha->fw_transfer_size = REQUEST_ENTRY_SIZE * 1024; 573 else 574 ha->fw_transfer_size = REQUEST_ENTRY_SIZE * 575 ha->request_q_length; 576 577 if (IS_QLA2200(ha) && 578 RD_MAILBOX_REG(ha, reg, 7) == QLA2200A_RISC_ROM_VER) { 579 /* Limit firmware transfer size with a 2200A */ 580 DEBUG3(printk("scsi(%ld): Found QLA2200A chip.\n", 581 ha->host_no)); 582 583 ha->fw_transfer_size = 128; 584 } 585 586 /* Wrap Incoming Mailboxes Test. */ 587 spin_unlock_irqrestore(&ha->hardware_lock, flags); 588 589 DEBUG3(printk("scsi(%ld): Checking mailboxes.\n", ha->host_no)); 590 rval = qla2x00_mbx_reg_test(ha); 591 if (rval) { 592 DEBUG(printk("scsi(%ld): Failed mailbox send register test\n", 593 ha->host_no)); 594 qla_printk(KERN_WARNING, ha, 595 "Failed mailbox send register test\n"); 596 } 597 else { 598 /* Flag a successful rval */ 599 rval = QLA_SUCCESS; 600 } 601 spin_lock_irqsave(&ha->hardware_lock, flags); 602 603 chip_diag_failed: 604 if (rval) 605 DEBUG2_3(printk("scsi(%ld): Chip diagnostics **** FAILED " 606 "****\n", ha->host_no)); 607 608 spin_unlock_irqrestore(&ha->hardware_lock, flags); 609 610 return (rval); 611 } 612 613 /** 614 * qla2x00_resize_request_q() - Resize request queue given available ISP memory. 615 * @ha: HA context 616 * 617 * Returns 0 on success. 618 */ 619 static void 620 qla2x00_resize_request_q(scsi_qla_host_t *ha) 621 { 622 int rval; 623 uint16_t fw_iocb_cnt = 0; 624 uint16_t request_q_length = REQUEST_ENTRY_CNT_2XXX_EXT_MEM; 625 dma_addr_t request_dma; 626 request_t *request_ring; 627 628 /* Valid only on recent ISPs. */ 629 if (IS_QLA2100(ha) || IS_QLA2200(ha)) 630 return; 631 632 /* Retrieve IOCB counts available to the firmware. */ 633 rval = qla2x00_get_resource_cnts(ha, NULL, NULL, NULL, &fw_iocb_cnt); 634 if (rval) 635 return; 636 /* No point in continuing if current settings are sufficient. */ 637 if (fw_iocb_cnt < 1024) 638 return; 639 if (ha->request_q_length >= request_q_length) 640 return; 641 642 /* Attempt to claim larger area for request queue. */ 643 request_ring = dma_alloc_coherent(&ha->pdev->dev, 644 (request_q_length + 1) * sizeof(request_t), &request_dma, 645 GFP_KERNEL); 646 if (request_ring == NULL) 647 return; 648 649 /* Resize successful, report extensions. */ 650 qla_printk(KERN_INFO, ha, "Extended memory detected (%d KB)...\n", 651 (ha->fw_memory_size + 1) / 1024); 652 qla_printk(KERN_INFO, ha, "Resizing request queue depth " 653 "(%d -> %d)...\n", ha->request_q_length, request_q_length); 654 655 /* Clear old allocations. */ 656 dma_free_coherent(&ha->pdev->dev, 657 (ha->request_q_length + 1) * sizeof(request_t), ha->request_ring, 658 ha->request_dma); 659 660 /* Begin using larger queue. */ 661 ha->request_q_length = request_q_length; 662 ha->request_ring = request_ring; 663 ha->request_dma = request_dma; 664 } 665 666 /** 667 * qla2x00_setup_chip() - Load and start RISC firmware. 668 * @ha: HA context 669 * 670 * Returns 0 on success. 671 */ 672 static int 673 qla2x00_setup_chip(scsi_qla_host_t *ha) 674 { 675 int rval; 676 uint16_t cnt; 677 uint16_t *risc_code; 678 unsigned long risc_address; 679 unsigned long risc_code_size; 680 int num; 681 int i; 682 uint16_t *req_ring; 683 struct qla_fw_info *fw_iter; 684 685 rval = QLA_SUCCESS; 686 687 /* Load firmware sequences */ 688 fw_iter = ha->brd_info->fw_info; 689 while (fw_iter->addressing != FW_INFO_ADDR_NOMORE) { 690 risc_code = fw_iter->fwcode; 691 risc_code_size = *fw_iter->fwlen; 692 693 if (fw_iter->addressing == FW_INFO_ADDR_NORMAL) { 694 risc_address = *fw_iter->fwstart; 695 } else { 696 /* Extended address */ 697 risc_address = *fw_iter->lfwstart; 698 } 699 700 num = 0; 701 rval = 0; 702 while (risc_code_size > 0 && !rval) { 703 cnt = (uint16_t)(ha->fw_transfer_size >> 1); 704 if (cnt > risc_code_size) 705 cnt = risc_code_size; 706 707 DEBUG7(printk("scsi(%ld): Loading risc segment@ " 708 "addr %p, number of bytes 0x%x, offset 0x%lx.\n", 709 ha->host_no, risc_code, cnt, risc_address)); 710 711 req_ring = (uint16_t *)ha->request_ring; 712 for (i = 0; i < cnt; i++) 713 req_ring[i] = cpu_to_le16(risc_code[i]); 714 715 if (fw_iter->addressing == FW_INFO_ADDR_NORMAL) { 716 rval = qla2x00_load_ram(ha, 717 ha->request_dma, risc_address, cnt); 718 } else { 719 rval = qla2x00_load_ram_ext(ha, 720 ha->request_dma, risc_address, cnt); 721 } 722 if (rval) { 723 DEBUG(printk("scsi(%ld): [ERROR] Failed to " 724 "load segment %d of firmware\n", 725 ha->host_no, num)); 726 qla_printk(KERN_WARNING, ha, 727 "[ERROR] Failed to load " 728 "segment %d of firmware\n", num); 729 730 qla2x00_dump_regs(ha); 731 break; 732 } 733 734 risc_code += cnt; 735 risc_address += cnt; 736 risc_code_size -= cnt; 737 num++; 738 } 739 740 /* Next firmware sequence */ 741 fw_iter++; 742 } 743 744 /* Verify checksum of loaded RISC code. */ 745 if (!rval) { 746 DEBUG(printk("scsi(%ld): Verifying Checksum of loaded RISC " 747 "code.\n", ha->host_no)); 748 749 rval = qla2x00_verify_checksum(ha); 750 if (rval == QLA_SUCCESS) { 751 /* Start firmware execution. */ 752 DEBUG(printk("scsi(%ld): Checksum OK, start " 753 "firmware.\n", ha->host_no)); 754 755 rval = qla2x00_execute_fw(ha); 756 /* Retrieve firmware information. */ 757 if (rval == QLA_SUCCESS && ha->fw_major_version == 0) { 758 qla2x00_get_fw_version(ha, 759 &ha->fw_major_version, 760 &ha->fw_minor_version, 761 &ha->fw_subminor_version, 762 &ha->fw_attributes, &ha->fw_memory_size); 763 qla2x00_resize_request_q(ha); 764 } 765 } else { 766 DEBUG2(printk(KERN_INFO 767 "scsi(%ld): ISP Firmware failed checksum.\n", 768 ha->host_no)); 769 } 770 } 771 772 if (rval) { 773 DEBUG2_3(printk("scsi(%ld): Setup chip **** FAILED ****.\n", 774 ha->host_no)); 775 } 776 777 return (rval); 778 } 779 780 /** 781 * qla2x00_init_response_q_entries() - Initializes response queue entries. 782 * @ha: HA context 783 * 784 * Beginning of request ring has initialization control block already built 785 * by nvram config routine. 786 * 787 * Returns 0 on success. 788 */ 789 static void 790 qla2x00_init_response_q_entries(scsi_qla_host_t *ha) 791 { 792 uint16_t cnt; 793 response_t *pkt; 794 795 pkt = ha->response_ring_ptr; 796 for (cnt = 0; cnt < ha->response_q_length; cnt++) { 797 pkt->signature = RESPONSE_PROCESSED; 798 pkt++; 799 } 800 801 } 802 803 /** 804 * qla2x00_update_fw_options() - Read and process firmware options. 805 * @ha: HA context 806 * 807 * Returns 0 on success. 808 */ 809 static void 810 qla2x00_update_fw_options(scsi_qla_host_t *ha) 811 { 812 uint16_t swing, emphasis, tx_sens, rx_sens; 813 814 memset(ha->fw_options, 0, sizeof(ha->fw_options)); 815 qla2x00_get_fw_options(ha, ha->fw_options); 816 817 if (IS_QLA2100(ha) || IS_QLA2200(ha)) 818 return; 819 820 /* Serial Link options. */ 821 DEBUG3(printk("scsi(%ld): Serial link options:\n", 822 ha->host_no)); 823 DEBUG3(qla2x00_dump_buffer((uint8_t *)&ha->fw_seriallink_options, 824 sizeof(ha->fw_seriallink_options))); 825 826 ha->fw_options[1] &= ~FO1_SET_EMPHASIS_SWING; 827 if (ha->fw_seriallink_options[3] & BIT_2) { 828 ha->fw_options[1] |= FO1_SET_EMPHASIS_SWING; 829 830 /* 1G settings */ 831 swing = ha->fw_seriallink_options[2] & (BIT_2 | BIT_1 | BIT_0); 832 emphasis = (ha->fw_seriallink_options[2] & 833 (BIT_4 | BIT_3)) >> 3; 834 tx_sens = ha->fw_seriallink_options[0] & 835 (BIT_3 | BIT_2 | BIT_1 | BIT_0); 836 rx_sens = (ha->fw_seriallink_options[0] & 837 (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4; 838 ha->fw_options[10] = (emphasis << 14) | (swing << 8); 839 if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) { 840 if (rx_sens == 0x0) 841 rx_sens = 0x3; 842 ha->fw_options[10] |= (tx_sens << 4) | rx_sens; 843 } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) 844 ha->fw_options[10] |= BIT_5 | 845 ((rx_sens & (BIT_1 | BIT_0)) << 2) | 846 (tx_sens & (BIT_1 | BIT_0)); 847 848 /* 2G settings */ 849 swing = (ha->fw_seriallink_options[2] & 850 (BIT_7 | BIT_6 | BIT_5)) >> 5; 851 emphasis = ha->fw_seriallink_options[3] & (BIT_1 | BIT_0); 852 tx_sens = ha->fw_seriallink_options[1] & 853 (BIT_3 | BIT_2 | BIT_1 | BIT_0); 854 rx_sens = (ha->fw_seriallink_options[1] & 855 (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4; 856 ha->fw_options[11] = (emphasis << 14) | (swing << 8); 857 if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) { 858 if (rx_sens == 0x0) 859 rx_sens = 0x3; 860 ha->fw_options[11] |= (tx_sens << 4) | rx_sens; 861 } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) 862 ha->fw_options[11] |= BIT_5 | 863 ((rx_sens & (BIT_1 | BIT_0)) << 2) | 864 (tx_sens & (BIT_1 | BIT_0)); 865 } 866 867 /* FCP2 options. */ 868 /* Return command IOCBs without waiting for an ABTS to complete. */ 869 ha->fw_options[3] |= BIT_13; 870 871 /* LED scheme. */ 872 if (ha->flags.enable_led_scheme) 873 ha->fw_options[2] |= BIT_12; 874 875 /* Update firmware options. */ 876 qla2x00_set_fw_options(ha, ha->fw_options); 877 } 878 879 /** 880 * qla2x00_init_rings() - Initializes firmware. 881 * @ha: HA context 882 * 883 * Beginning of request ring has initialization control block already built 884 * by nvram config routine. 885 * 886 * Returns 0 on success. 887 */ 888 static int 889 qla2x00_init_rings(scsi_qla_host_t *ha) 890 { 891 int rval; 892 unsigned long flags = 0; 893 int cnt; 894 device_reg_t __iomem *reg = ha->iobase; 895 896 spin_lock_irqsave(&ha->hardware_lock, flags); 897 898 /* Clear outstanding commands array. */ 899 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) 900 ha->outstanding_cmds[cnt] = NULL; 901 902 ha->current_outstanding_cmd = 0; 903 904 /* Clear RSCN queue. */ 905 ha->rscn_in_ptr = 0; 906 ha->rscn_out_ptr = 0; 907 908 /* Initialize firmware. */ 909 ha->request_ring_ptr = ha->request_ring; 910 ha->req_ring_index = 0; 911 ha->req_q_cnt = ha->request_q_length; 912 ha->response_ring_ptr = ha->response_ring; 913 ha->rsp_ring_index = 0; 914 915 /* Setup ring parameters in initialization control block. */ 916 ha->init_cb->request_q_outpointer = __constant_cpu_to_le16(0); 917 ha->init_cb->response_q_inpointer = __constant_cpu_to_le16(0); 918 ha->init_cb->request_q_length = cpu_to_le16(ha->request_q_length); 919 ha->init_cb->response_q_length = cpu_to_le16(ha->response_q_length); 920 ha->init_cb->request_q_address[0] = cpu_to_le32(LSD(ha->request_dma)); 921 ha->init_cb->request_q_address[1] = cpu_to_le32(MSD(ha->request_dma)); 922 ha->init_cb->response_q_address[0] = cpu_to_le32(LSD(ha->response_dma)); 923 ha->init_cb->response_q_address[1] = cpu_to_le32(MSD(ha->response_dma)); 924 925 /* Initialize response queue entries */ 926 qla2x00_init_response_q_entries(ha); 927 928 WRT_REG_WORD(ISP_REQ_Q_IN(ha, reg), 0); 929 WRT_REG_WORD(ISP_REQ_Q_OUT(ha, reg), 0); 930 WRT_REG_WORD(ISP_RSP_Q_IN(ha, reg), 0); 931 WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), 0); 932 RD_REG_WORD(ISP_RSP_Q_OUT(ha, reg)); /* PCI Posting. */ 933 934 spin_unlock_irqrestore(&ha->hardware_lock, flags); 935 936 /* Update any ISP specific firmware options before initialization. */ 937 qla2x00_update_fw_options(ha); 938 939 DEBUG(printk("scsi(%ld): Issue init firmware.\n", ha->host_no)); 940 rval = qla2x00_init_firmware(ha, sizeof(init_cb_t)); 941 if (rval) { 942 DEBUG2_3(printk("scsi(%ld): Init firmware **** FAILED ****.\n", 943 ha->host_no)); 944 } else { 945 DEBUG3(printk("scsi(%ld): Init firmware -- success.\n", 946 ha->host_no)); 947 } 948 949 return (rval); 950 } 951 952 /** 953 * qla2x00_fw_ready() - Waits for firmware ready. 954 * @ha: HA context 955 * 956 * Returns 0 on success. 957 */ 958 static int 959 qla2x00_fw_ready(scsi_qla_host_t *ha) 960 { 961 int rval; 962 unsigned long wtime, mtime; 963 uint16_t min_wait; /* Minimum wait time if loop is down */ 964 uint16_t wait_time; /* Wait time if loop is coming ready */ 965 uint16_t fw_state; 966 967 rval = QLA_SUCCESS; 968 969 /* 20 seconds for loop down. */ 970 min_wait = 20; 971 972 /* 973 * Firmware should take at most one RATOV to login, plus 5 seconds for 974 * our own processing. 975 */ 976 if ((wait_time = (ha->retry_count*ha->login_timeout) + 5) < min_wait) { 977 wait_time = min_wait; 978 } 979 980 /* Min wait time if loop down */ 981 mtime = jiffies + (min_wait * HZ); 982 983 /* wait time before firmware ready */ 984 wtime = jiffies + (wait_time * HZ); 985 986 /* Wait for ISP to finish LIP */ 987 if (!ha->flags.init_done) 988 qla_printk(KERN_INFO, ha, "Waiting for LIP to complete...\n"); 989 990 DEBUG3(printk("scsi(%ld): Waiting for LIP to complete...\n", 991 ha->host_no)); 992 993 do { 994 rval = qla2x00_get_firmware_state(ha, &fw_state); 995 if (rval == QLA_SUCCESS) { 996 if (fw_state < FSTATE_LOSS_OF_SYNC) { 997 ha->device_flags &= ~DFLG_NO_CABLE; 998 } 999 if (fw_state == FSTATE_READY) { 1000 DEBUG(printk("scsi(%ld): F/W Ready - OK \n", 1001 ha->host_no)); 1002 1003 qla2x00_get_retry_cnt(ha, &ha->retry_count, 1004 &ha->login_timeout, &ha->r_a_tov); 1005 1006 rval = QLA_SUCCESS; 1007 break; 1008 } 1009 1010 rval = QLA_FUNCTION_FAILED; 1011 1012 if (atomic_read(&ha->loop_down_timer) && 1013 (fw_state >= FSTATE_LOSS_OF_SYNC || 1014 fw_state == FSTATE_WAIT_AL_PA)) { 1015 /* Loop down. Timeout on min_wait for states 1016 * other than Wait for Login. 1017 */ 1018 if (time_after_eq(jiffies, mtime)) { 1019 qla_printk(KERN_INFO, ha, 1020 "Cable is unplugged...\n"); 1021 1022 ha->device_flags |= DFLG_NO_CABLE; 1023 break; 1024 } 1025 } 1026 } else { 1027 /* Mailbox cmd failed. Timeout on min_wait. */ 1028 if (time_after_eq(jiffies, mtime)) 1029 break; 1030 } 1031 1032 if (time_after_eq(jiffies, wtime)) 1033 break; 1034 1035 /* Delay for a while */ 1036 msleep(500); 1037 1038 DEBUG3(printk("scsi(%ld): fw_state=%x curr time=%lx.\n", 1039 ha->host_no, fw_state, jiffies)); 1040 } while (1); 1041 1042 DEBUG(printk("scsi(%ld): fw_state=%x curr time=%lx.\n", 1043 ha->host_no, fw_state, jiffies)); 1044 1045 if (rval) { 1046 DEBUG2_3(printk("scsi(%ld): Firmware ready **** FAILED ****.\n", 1047 ha->host_no)); 1048 } 1049 1050 return (rval); 1051 } 1052 1053 /* 1054 * qla2x00_configure_hba 1055 * Setup adapter context. 1056 * 1057 * Input: 1058 * ha = adapter state pointer. 1059 * 1060 * Returns: 1061 * 0 = success 1062 * 1063 * Context: 1064 * Kernel context. 1065 */ 1066 static int 1067 qla2x00_configure_hba(scsi_qla_host_t *ha) 1068 { 1069 int rval; 1070 uint16_t loop_id; 1071 uint16_t topo; 1072 uint8_t al_pa; 1073 uint8_t area; 1074 uint8_t domain; 1075 char connect_type[22]; 1076 1077 /* Get host addresses. */ 1078 rval = qla2x00_get_adapter_id(ha, 1079 &loop_id, &al_pa, &area, &domain, &topo); 1080 if (rval != QLA_SUCCESS) { 1081 qla_printk(KERN_WARNING, ha, 1082 "ERROR -- Unable to get host loop ID.\n"); 1083 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); 1084 return (rval); 1085 } 1086 1087 if (topo == 4) { 1088 qla_printk(KERN_INFO, ha, 1089 "Cannot get topology - retrying.\n"); 1090 return (QLA_FUNCTION_FAILED); 1091 } 1092 1093 ha->loop_id = loop_id; 1094 1095 /* initialize */ 1096 ha->min_external_loopid = SNS_FIRST_LOOP_ID; 1097 ha->operating_mode = LOOP; 1098 1099 switch (topo) { 1100 case 0: 1101 DEBUG3(printk("scsi(%ld): HBA in NL topology.\n", 1102 ha->host_no)); 1103 ha->current_topology = ISP_CFG_NL; 1104 strcpy(connect_type, "(Loop)"); 1105 break; 1106 1107 case 1: 1108 DEBUG3(printk("scsi(%ld): HBA in FL topology.\n", 1109 ha->host_no)); 1110 ha->current_topology = ISP_CFG_FL; 1111 strcpy(connect_type, "(FL_Port)"); 1112 break; 1113 1114 case 2: 1115 DEBUG3(printk("scsi(%ld): HBA in N P2P topology.\n", 1116 ha->host_no)); 1117 ha->operating_mode = P2P; 1118 ha->current_topology = ISP_CFG_N; 1119 strcpy(connect_type, "(N_Port-to-N_Port)"); 1120 break; 1121 1122 case 3: 1123 DEBUG3(printk("scsi(%ld): HBA in F P2P topology.\n", 1124 ha->host_no)); 1125 ha->operating_mode = P2P; 1126 ha->current_topology = ISP_CFG_F; 1127 strcpy(connect_type, "(F_Port)"); 1128 break; 1129 1130 default: 1131 DEBUG3(printk("scsi(%ld): HBA in unknown topology %x. " 1132 "Using NL.\n", 1133 ha->host_no, topo)); 1134 ha->current_topology = ISP_CFG_NL; 1135 strcpy(connect_type, "(Loop)"); 1136 break; 1137 } 1138 1139 /* Save Host port and loop ID. */ 1140 /* byte order - Big Endian */ 1141 ha->d_id.b.domain = domain; 1142 ha->d_id.b.area = area; 1143 ha->d_id.b.al_pa = al_pa; 1144 1145 if (!ha->flags.init_done) 1146 qla_printk(KERN_INFO, ha, 1147 "Topology - %s, Host Loop address 0x%x\n", 1148 connect_type, ha->loop_id); 1149 1150 if (rval) { 1151 DEBUG2_3(printk("scsi(%ld): FAILED.\n", ha->host_no)); 1152 } else { 1153 DEBUG3(printk("scsi(%ld): exiting normally.\n", ha->host_no)); 1154 } 1155 1156 return(rval); 1157 } 1158 1159 /* 1160 * NVRAM configuration for ISP 2xxx 1161 * 1162 * Input: 1163 * ha = adapter block pointer. 1164 * 1165 * Output: 1166 * initialization control block in response_ring 1167 * host adapters parameters in host adapter block 1168 * 1169 * Returns: 1170 * 0 = success. 1171 */ 1172 static int 1173 qla2x00_nvram_config(scsi_qla_host_t *ha) 1174 { 1175 int rval; 1176 uint8_t chksum = 0; 1177 uint16_t cnt; 1178 uint8_t *dptr1, *dptr2; 1179 init_cb_t *icb = ha->init_cb; 1180 nvram_t *nv = (nvram_t *)ha->request_ring; 1181 uint16_t *wptr = (uint16_t *)ha->request_ring; 1182 device_reg_t __iomem *reg = ha->iobase; 1183 uint8_t timer_mode; 1184 1185 rval = QLA_SUCCESS; 1186 1187 /* Determine NVRAM starting address. */ 1188 ha->nvram_base = 0; 1189 if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA2300(ha)) 1190 if ((RD_REG_WORD(®->ctrl_status) >> 14) == 1) 1191 ha->nvram_base = 0x80; 1192 1193 /* Get NVRAM data and calculate checksum. */ 1194 qla2x00_lock_nvram_access(ha); 1195 for (cnt = 0; cnt < sizeof(nvram_t)/2; cnt++) { 1196 *wptr = cpu_to_le16(qla2x00_get_nvram_word(ha, 1197 (cnt+ha->nvram_base))); 1198 chksum += (uint8_t)*wptr; 1199 chksum += (uint8_t)(*wptr >> 8); 1200 wptr++; 1201 } 1202 qla2x00_unlock_nvram_access(ha); 1203 1204 DEBUG5(printk("scsi(%ld): Contents of NVRAM\n", ha->host_no)); 1205 DEBUG5(qla2x00_dump_buffer((uint8_t *)ha->request_ring, 1206 sizeof(nvram_t))); 1207 1208 /* Bad NVRAM data, set defaults parameters. */ 1209 if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' || 1210 nv->id[2] != 'P' || nv->id[3] != ' ' || nv->nvram_version < 1) { 1211 /* Reset NVRAM data. */ 1212 qla_printk(KERN_WARNING, ha, "Inconsistent NVRAM detected: " 1213 "checksum=0x%x id=%c version=0x%x.\n", chksum, nv->id[0], 1214 nv->nvram_version); 1215 qla_printk(KERN_WARNING, ha, "Falling back to functioning (yet " 1216 "invalid -- WWPN) defaults.\n"); 1217 1218 /* 1219 * Set default initialization control block. 1220 */ 1221 memset(nv, 0, sizeof(nvram_t)); 1222 nv->parameter_block_version = ICB_VERSION; 1223 1224 if (IS_QLA23XX(ha)) { 1225 nv->firmware_options[0] = BIT_2 | BIT_1; 1226 nv->firmware_options[1] = BIT_7 | BIT_5; 1227 nv->add_firmware_options[0] = BIT_5; 1228 nv->add_firmware_options[1] = BIT_5 | BIT_4; 1229 nv->frame_payload_size = __constant_cpu_to_le16(2048); 1230 nv->special_options[1] = BIT_7; 1231 } else if (IS_QLA2200(ha)) { 1232 nv->firmware_options[0] = BIT_2 | BIT_1; 1233 nv->firmware_options[1] = BIT_7 | BIT_5; 1234 nv->add_firmware_options[0] = BIT_5; 1235 nv->add_firmware_options[1] = BIT_5 | BIT_4; 1236 nv->frame_payload_size = __constant_cpu_to_le16(1024); 1237 } else if (IS_QLA2100(ha)) { 1238 nv->firmware_options[0] = BIT_3 | BIT_1; 1239 nv->firmware_options[1] = BIT_5; 1240 nv->frame_payload_size = __constant_cpu_to_le16(1024); 1241 } 1242 1243 nv->max_iocb_allocation = __constant_cpu_to_le16(256); 1244 nv->execution_throttle = __constant_cpu_to_le16(16); 1245 nv->retry_count = 8; 1246 nv->retry_delay = 1; 1247 1248 nv->port_name[0] = 33; 1249 nv->port_name[3] = 224; 1250 nv->port_name[4] = 139; 1251 1252 nv->login_timeout = 4; 1253 1254 /* 1255 * Set default host adapter parameters 1256 */ 1257 nv->host_p[1] = BIT_2; 1258 nv->reset_delay = 5; 1259 nv->port_down_retry_count = 8; 1260 nv->max_luns_per_target = __constant_cpu_to_le16(8); 1261 nv->link_down_timeout = 60; 1262 1263 rval = 1; 1264 } 1265 1266 #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2) 1267 /* 1268 * The SN2 does not provide BIOS emulation which means you can't change 1269 * potentially bogus BIOS settings. Force the use of default settings 1270 * for link rate and frame size. Hope that the rest of the settings 1271 * are valid. 1272 */ 1273 if (ia64_platform_is("sn2")) { 1274 nv->frame_payload_size = __constant_cpu_to_le16(2048); 1275 if (IS_QLA23XX(ha)) 1276 nv->special_options[1] = BIT_7; 1277 } 1278 #endif 1279 1280 /* Reset Initialization control block */ 1281 memset(icb, 0, sizeof(init_cb_t)); 1282 1283 /* 1284 * Setup driver NVRAM options. 1285 */ 1286 nv->firmware_options[0] |= (BIT_6 | BIT_1); 1287 nv->firmware_options[0] &= ~(BIT_5 | BIT_4); 1288 nv->firmware_options[1] |= (BIT_5 | BIT_0); 1289 nv->firmware_options[1] &= ~BIT_4; 1290 1291 if (IS_QLA23XX(ha)) { 1292 nv->firmware_options[0] |= BIT_2; 1293 nv->firmware_options[0] &= ~BIT_3; 1294 1295 if (IS_QLA2300(ha)) { 1296 if (ha->fb_rev == FPM_2310) { 1297 strcpy(ha->model_number, "QLA2310"); 1298 } else { 1299 strcpy(ha->model_number, "QLA2300"); 1300 } 1301 } else { 1302 if (rval == 0 && 1303 memcmp(nv->model_number, BINZERO, 1304 sizeof(nv->model_number)) != 0) { 1305 char *st, *en; 1306 1307 strncpy(ha->model_number, nv->model_number, 1308 sizeof(nv->model_number)); 1309 st = en = ha->model_number; 1310 en += sizeof(nv->model_number) - 1; 1311 while (en > st) { 1312 if (*en != 0x20 && *en != 0x00) 1313 break; 1314 *en-- = '\0'; 1315 } 1316 } else { 1317 uint16_t index; 1318 1319 index = (ha->pdev->subsystem_device & 0xff); 1320 if (index < QLA_MODEL_NAMES) { 1321 strcpy(ha->model_number, 1322 qla2x00_model_name[index]); 1323 ha->model_desc = 1324 qla2x00_model_desc[index]; 1325 } else { 1326 strcpy(ha->model_number, "QLA23xx"); 1327 } 1328 } 1329 } 1330 } else if (IS_QLA2200(ha)) { 1331 nv->firmware_options[0] |= BIT_2; 1332 /* 1333 * 'Point-to-point preferred, else loop' is not a safe 1334 * connection mode setting. 1335 */ 1336 if ((nv->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) == 1337 (BIT_5 | BIT_4)) { 1338 /* Force 'loop preferred, else point-to-point'. */ 1339 nv->add_firmware_options[0] &= ~(BIT_6 | BIT_5 | BIT_4); 1340 nv->add_firmware_options[0] |= BIT_5; 1341 } 1342 strcpy(ha->model_number, "QLA22xx"); 1343 } else /*if (IS_QLA2100(ha))*/ { 1344 strcpy(ha->model_number, "QLA2100"); 1345 } 1346 1347 /* 1348 * Copy over NVRAM RISC parameter block to initialization control block. 1349 */ 1350 dptr1 = (uint8_t *)icb; 1351 dptr2 = (uint8_t *)&nv->parameter_block_version; 1352 cnt = (uint8_t *)&icb->request_q_outpointer - (uint8_t *)&icb->version; 1353 while (cnt--) 1354 *dptr1++ = *dptr2++; 1355 1356 /* Copy 2nd half. */ 1357 dptr1 = (uint8_t *)icb->add_firmware_options; 1358 cnt = (uint8_t *)icb->reserved_3 - (uint8_t *)icb->add_firmware_options; 1359 while (cnt--) 1360 *dptr1++ = *dptr2++; 1361 1362 /* Prepare nodename */ 1363 if ((icb->firmware_options[1] & BIT_6) == 0) { 1364 /* 1365 * Firmware will apply the following mask if the nodename was 1366 * not provided. 1367 */ 1368 memcpy(icb->node_name, icb->port_name, WWN_SIZE); 1369 icb->node_name[0] &= 0xF0; 1370 } 1371 1372 /* 1373 * Set host adapter parameters. 1374 */ 1375 ha->nvram_version = nv->nvram_version; 1376 1377 ha->flags.disable_risc_code_load = ((nv->host_p[0] & BIT_4) ? 1 : 0); 1378 /* Always load RISC code on non ISP2[12]00 chips. */ 1379 if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) 1380 ha->flags.disable_risc_code_load = 0; 1381 ha->flags.enable_lip_reset = ((nv->host_p[1] & BIT_1) ? 1 : 0); 1382 ha->flags.enable_lip_full_login = ((nv->host_p[1] & BIT_2) ? 1 : 0); 1383 ha->flags.enable_target_reset = ((nv->host_p[1] & BIT_3) ? 1 : 0); 1384 ha->flags.enable_led_scheme = ((nv->efi_parameters & BIT_3) ? 1 : 0); 1385 1386 ha->operating_mode = 1387 (icb->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) >> 4; 1388 1389 memcpy(ha->fw_seriallink_options, nv->seriallink_options, 1390 sizeof(ha->fw_seriallink_options)); 1391 1392 /* save HBA serial number */ 1393 ha->serial0 = icb->port_name[5]; 1394 ha->serial1 = icb->port_name[6]; 1395 ha->serial2 = icb->port_name[7]; 1396 memcpy(ha->node_name, icb->node_name, WWN_SIZE); 1397 1398 icb->execution_throttle = __constant_cpu_to_le16(0xFFFF); 1399 1400 ha->retry_count = nv->retry_count; 1401 1402 /* Set minimum login_timeout to 4 seconds. */ 1403 if (nv->login_timeout < ql2xlogintimeout) 1404 nv->login_timeout = ql2xlogintimeout; 1405 if (nv->login_timeout < 4) 1406 nv->login_timeout = 4; 1407 ha->login_timeout = nv->login_timeout; 1408 icb->login_timeout = nv->login_timeout; 1409 1410 /* Set minimum RATOV to 200 tenths of a second. */ 1411 ha->r_a_tov = 200; 1412 1413 ha->minimum_timeout = 1414 (ha->login_timeout * ha->retry_count) + nv->port_down_retry_count; 1415 ha->loop_reset_delay = nv->reset_delay; 1416 1417 /* Will get the value from NVRAM. */ 1418 ha->loop_down_timeout = LOOP_DOWN_TIMEOUT; 1419 1420 /* Link Down Timeout = 0: 1421 * 1422 * When Port Down timer expires we will start returning 1423 * I/O's to OS with "DID_NO_CONNECT". 1424 * 1425 * Link Down Timeout != 0: 1426 * 1427 * The driver waits for the link to come up after link down 1428 * before returning I/Os to OS with "DID_NO_CONNECT". 1429 */ 1430 if (nv->link_down_timeout == 0) { 1431 ha->loop_down_abort_time = 1432 (LOOP_DOWN_TIME - ha->loop_down_timeout); 1433 } else { 1434 ha->link_down_timeout = nv->link_down_timeout; 1435 ha->loop_down_abort_time = 1436 (LOOP_DOWN_TIME - ha->link_down_timeout); 1437 } 1438 1439 ha->max_luns = MAX_LUNS; 1440 ha->max_probe_luns = le16_to_cpu(nv->max_luns_per_target); 1441 if (ha->max_probe_luns == 0) 1442 ha->max_probe_luns = MIN_LUNS; 1443 1444 /* 1445 * Need enough time to try and get the port back. 1446 */ 1447 ha->port_down_retry_count = nv->port_down_retry_count; 1448 if (qlport_down_retry) 1449 ha->port_down_retry_count = qlport_down_retry; 1450 /* Set login_retry_count */ 1451 ha->login_retry_count = nv->retry_count; 1452 if (ha->port_down_retry_count == nv->port_down_retry_count && 1453 ha->port_down_retry_count > 3) 1454 ha->login_retry_count = ha->port_down_retry_count; 1455 else if (ha->port_down_retry_count > (int)ha->login_retry_count) 1456 ha->login_retry_count = ha->port_down_retry_count; 1457 if (ql2xloginretrycount) 1458 ha->login_retry_count = ql2xloginretrycount; 1459 1460 ha->binding_type = Bind; 1461 if (ha->binding_type != BIND_BY_PORT_NAME && 1462 ha->binding_type != BIND_BY_PORT_ID) { 1463 qla_printk(KERN_WARNING, ha, 1464 "Invalid binding type specified (%d), " 1465 "defaulting to BIND_BY_PORT_NAME!!!\n", ha->binding_type); 1466 1467 ha->binding_type = BIND_BY_PORT_NAME; 1468 } 1469 1470 icb->lun_enables = __constant_cpu_to_le16(0); 1471 icb->command_resource_count = 0; 1472 icb->immediate_notify_resource_count = 0; 1473 icb->timeout = __constant_cpu_to_le16(0); 1474 1475 if (IS_QLA2100(ha) || IS_QLA2200(ha)) { 1476 /* Enable RIO */ 1477 icb->firmware_options[0] &= ~BIT_3; 1478 icb->add_firmware_options[0] &= 1479 ~(BIT_3 | BIT_2 | BIT_1 | BIT_0); 1480 icb->add_firmware_options[0] |= BIT_2; 1481 icb->response_accumulation_timer = 3; 1482 icb->interrupt_delay_timer = 5; 1483 1484 ha->flags.process_response_queue = 1; 1485 } else { 1486 /* Enable ZIO -- Support mode 5 only. */ 1487 timer_mode = icb->add_firmware_options[0] & 1488 (BIT_3 | BIT_2 | BIT_1 | BIT_0); 1489 icb->add_firmware_options[0] &= 1490 ~(BIT_3 | BIT_2 | BIT_1 | BIT_0); 1491 if (ql2xenablezio) 1492 timer_mode = BIT_2 | BIT_0; 1493 if (timer_mode == (BIT_2 | BIT_0)) { 1494 DEBUG2(printk("scsi(%ld): ZIO enabled; timer delay " 1495 "(%d).\n", ha->host_no, ql2xintrdelaytimer)); 1496 qla_printk(KERN_INFO, ha, 1497 "ZIO enabled; timer delay (%d).\n", 1498 ql2xintrdelaytimer); 1499 1500 icb->add_firmware_options[0] |= timer_mode; 1501 icb->interrupt_delay_timer = ql2xintrdelaytimer; 1502 ha->flags.process_response_queue = 1; 1503 } 1504 } 1505 1506 if (rval) { 1507 DEBUG2_3(printk(KERN_WARNING 1508 "scsi(%ld): NVRAM configuration failed!\n", ha->host_no)); 1509 } 1510 return (rval); 1511 } 1512 1513 /** 1514 * qla2x00_alloc_fcport() - Allocate a generic fcport. 1515 * @ha: HA context 1516 * @flags: allocation flags 1517 * 1518 * Returns a pointer to the allocated fcport, or NULL, if none available. 1519 */ 1520 fc_port_t * 1521 qla2x00_alloc_fcport(scsi_qla_host_t *ha, int flags) 1522 { 1523 fc_port_t *fcport; 1524 1525 fcport = kmalloc(sizeof(fc_port_t), flags); 1526 if (fcport == NULL) 1527 return (fcport); 1528 1529 /* Setup fcport template structure. */ 1530 memset(fcport, 0, sizeof (fc_port_t)); 1531 fcport->ha = ha; 1532 fcport->port_type = FCT_UNKNOWN; 1533 fcport->loop_id = FC_NO_LOOP_ID; 1534 fcport->iodesc_idx_sent = IODESC_INVALID_INDEX; 1535 atomic_set(&fcport->state, FCS_UNCONFIGURED); 1536 fcport->flags = FCF_RLC_SUPPORT; 1537 1538 return (fcport); 1539 } 1540 1541 /* 1542 * qla2x00_configure_loop 1543 * Updates Fibre Channel Device Database with what is actually on loop. 1544 * 1545 * Input: 1546 * ha = adapter block pointer. 1547 * 1548 * Returns: 1549 * 0 = success. 1550 * 1 = error. 1551 * 2 = database was full and device was not configured. 1552 */ 1553 static int 1554 qla2x00_configure_loop(scsi_qla_host_t *ha) 1555 { 1556 int rval; 1557 unsigned long flags, save_flags; 1558 1559 rval = QLA_SUCCESS; 1560 1561 /* Get Initiator ID */ 1562 if (test_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags)) { 1563 rval = qla2x00_configure_hba(ha); 1564 if (rval != QLA_SUCCESS) { 1565 DEBUG(printk("scsi(%ld): Unable to configure HBA.\n", 1566 ha->host_no)); 1567 return (rval); 1568 } 1569 } 1570 1571 save_flags = flags = ha->dpc_flags; 1572 DEBUG(printk("scsi(%ld): Configure loop -- dpc flags =0x%lx\n", 1573 ha->host_no, flags)); 1574 1575 /* 1576 * If we have both an RSCN and PORT UPDATE pending then handle them 1577 * both at the same time. 1578 */ 1579 clear_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags); 1580 clear_bit(RSCN_UPDATE, &ha->dpc_flags); 1581 ha->mem_err = 0 ; 1582 1583 /* Determine what we need to do */ 1584 if (ha->current_topology == ISP_CFG_FL && 1585 (test_bit(LOCAL_LOOP_UPDATE, &flags))) { 1586 1587 ha->flags.rscn_queue_overflow = 1; 1588 set_bit(RSCN_UPDATE, &flags); 1589 1590 } else if (ha->current_topology == ISP_CFG_F && 1591 (test_bit(LOCAL_LOOP_UPDATE, &flags))) { 1592 1593 ha->flags.rscn_queue_overflow = 1; 1594 set_bit(RSCN_UPDATE, &flags); 1595 clear_bit(LOCAL_LOOP_UPDATE, &flags); 1596 1597 } else if (!ha->flags.online || 1598 (test_bit(ABORT_ISP_ACTIVE, &flags))) { 1599 1600 ha->flags.rscn_queue_overflow = 1; 1601 set_bit(RSCN_UPDATE, &flags); 1602 set_bit(LOCAL_LOOP_UPDATE, &flags); 1603 } 1604 1605 if (test_bit(LOCAL_LOOP_UPDATE, &flags)) { 1606 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) { 1607 rval = QLA_FUNCTION_FAILED; 1608 } else { 1609 rval = qla2x00_configure_local_loop(ha); 1610 } 1611 } 1612 1613 if (rval == QLA_SUCCESS && test_bit(RSCN_UPDATE, &flags)) { 1614 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) { 1615 rval = QLA_FUNCTION_FAILED; 1616 } else { 1617 rval = qla2x00_configure_fabric(ha); 1618 } 1619 } 1620 1621 if (rval == QLA_SUCCESS) { 1622 if (atomic_read(&ha->loop_down_timer) || 1623 test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) { 1624 rval = QLA_FUNCTION_FAILED; 1625 } else { 1626 atomic_set(&ha->loop_state, LOOP_READY); 1627 1628 DEBUG(printk("scsi(%ld): LOOP READY\n", ha->host_no)); 1629 } 1630 } 1631 1632 if (rval) { 1633 DEBUG2_3(printk("%s(%ld): *** FAILED ***\n", 1634 __func__, ha->host_no)); 1635 } else { 1636 DEBUG3(printk("%s: exiting normally\n", __func__)); 1637 } 1638 1639 /* Restore state if a resync event occured during processing */ 1640 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) { 1641 if (test_bit(LOCAL_LOOP_UPDATE, &save_flags)) 1642 set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags); 1643 if (test_bit(RSCN_UPDATE, &save_flags)) 1644 set_bit(RSCN_UPDATE, &ha->dpc_flags); 1645 } 1646 1647 return (rval); 1648 } 1649 1650 1651 1652 /* 1653 * qla2x00_configure_local_loop 1654 * Updates Fibre Channel Device Database with local loop devices. 1655 * 1656 * Input: 1657 * ha = adapter block pointer. 1658 * 1659 * Returns: 1660 * 0 = success. 1661 */ 1662 static int 1663 qla2x00_configure_local_loop(scsi_qla_host_t *ha) 1664 { 1665 int rval, rval2; 1666 int found_devs; 1667 int found; 1668 fc_port_t *fcport, *new_fcport; 1669 1670 uint16_t index; 1671 uint16_t entries; 1672 char *id_iter; 1673 uint16_t loop_id; 1674 uint8_t domain, area, al_pa; 1675 1676 found_devs = 0; 1677 new_fcport = NULL; 1678 entries = MAX_FIBRE_DEVICES; 1679 1680 DEBUG3(printk("scsi(%ld): Getting FCAL position map\n", ha->host_no)); 1681 DEBUG3(qla2x00_get_fcal_position_map(ha, NULL)); 1682 1683 /* Get list of logged in devices. */ 1684 memset(ha->gid_list, 0, GID_LIST_SIZE); 1685 rval = qla2x00_get_id_list(ha, ha->gid_list, ha->gid_list_dma, 1686 &entries); 1687 if (rval != QLA_SUCCESS) 1688 goto cleanup_allocation; 1689 1690 DEBUG3(printk("scsi(%ld): Entries in ID list (%d)\n", 1691 ha->host_no, entries)); 1692 DEBUG3(qla2x00_dump_buffer((uint8_t *)ha->gid_list, 1693 entries * sizeof(struct gid_list_info))); 1694 1695 /* Allocate temporary fcport for any new fcports discovered. */ 1696 new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL); 1697 if (new_fcport == NULL) { 1698 rval = QLA_MEMORY_ALLOC_FAILED; 1699 goto cleanup_allocation; 1700 } 1701 new_fcport->flags &= ~FCF_FABRIC_DEVICE; 1702 1703 /* 1704 * Mark local devices that were present with FCF_DEVICE_LOST for now. 1705 */ 1706 list_for_each_entry(fcport, &ha->fcports, list) { 1707 if (atomic_read(&fcport->state) == FCS_ONLINE && 1708 fcport->port_type != FCT_BROADCAST && 1709 (fcport->flags & FCF_FABRIC_DEVICE) == 0) { 1710 1711 DEBUG(printk("scsi(%ld): Marking port lost, " 1712 "loop_id=0x%04x\n", 1713 ha->host_no, fcport->loop_id)); 1714 1715 atomic_set(&fcport->state, FCS_DEVICE_LOST); 1716 fcport->flags &= ~FCF_FARP_DONE; 1717 } 1718 } 1719 1720 /* Add devices to port list. */ 1721 id_iter = (char *)ha->gid_list; 1722 for (index = 0; index < entries; index++) { 1723 domain = ((struct gid_list_info *)id_iter)->domain; 1724 area = ((struct gid_list_info *)id_iter)->area; 1725 al_pa = ((struct gid_list_info *)id_iter)->al_pa; 1726 if (IS_QLA2100(ha) || IS_QLA2200(ha)) { 1727 loop_id = (uint16_t) 1728 ((struct gid_list_info *)id_iter)->loop_id_2100; 1729 id_iter += 4; 1730 } else { 1731 loop_id = le16_to_cpu( 1732 ((struct gid_list_info *)id_iter)->loop_id); 1733 id_iter += 6; 1734 } 1735 1736 /* Bypass reserved domain fields. */ 1737 if ((domain & 0xf0) == 0xf0) 1738 continue; 1739 1740 /* Bypass if not same domain and area of adapter. */ 1741 if (area != ha->d_id.b.area || domain != ha->d_id.b.domain) 1742 continue; 1743 1744 /* Bypass invalid local loop ID. */ 1745 if (loop_id > LAST_LOCAL_LOOP_ID) 1746 continue; 1747 1748 /* Fill in member data. */ 1749 new_fcport->d_id.b.domain = domain; 1750 new_fcport->d_id.b.area = area; 1751 new_fcport->d_id.b.al_pa = al_pa; 1752 new_fcport->loop_id = loop_id; 1753 rval2 = qla2x00_get_port_database(ha, new_fcport, 0); 1754 if (rval2 != QLA_SUCCESS) { 1755 DEBUG2(printk("scsi(%ld): Failed to retrieve fcport " 1756 "information -- get_port_database=%x, " 1757 "loop_id=0x%04x\n", 1758 ha->host_no, rval2, new_fcport->loop_id)); 1759 continue; 1760 } 1761 1762 /* Check for matching device in port list. */ 1763 found = 0; 1764 fcport = NULL; 1765 list_for_each_entry(fcport, &ha->fcports, list) { 1766 if (memcmp(new_fcport->port_name, fcport->port_name, 1767 WWN_SIZE)) 1768 continue; 1769 1770 fcport->flags &= ~(FCF_FABRIC_DEVICE | 1771 FCF_PERSISTENT_BOUND); 1772 fcport->loop_id = new_fcport->loop_id; 1773 fcport->port_type = new_fcport->port_type; 1774 fcport->d_id.b24 = new_fcport->d_id.b24; 1775 memcpy(fcport->node_name, new_fcport->node_name, 1776 WWN_SIZE); 1777 1778 found++; 1779 break; 1780 } 1781 1782 if (!found) { 1783 /* New device, add to fcports list. */ 1784 new_fcport->flags &= ~FCF_PERSISTENT_BOUND; 1785 list_add_tail(&new_fcport->list, &ha->fcports); 1786 1787 /* Allocate a new replacement fcport. */ 1788 fcport = new_fcport; 1789 new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL); 1790 if (new_fcport == NULL) { 1791 rval = QLA_MEMORY_ALLOC_FAILED; 1792 goto cleanup_allocation; 1793 } 1794 new_fcport->flags &= ~FCF_FABRIC_DEVICE; 1795 } 1796 1797 qla2x00_update_fcport(ha, fcport); 1798 1799 found_devs++; 1800 } 1801 1802 cleanup_allocation: 1803 if (new_fcport) 1804 kfree(new_fcport); 1805 1806 if (rval != QLA_SUCCESS) { 1807 DEBUG2(printk("scsi(%ld): Configure local loop error exit: " 1808 "rval=%x\n", ha->host_no, rval)); 1809 } 1810 1811 if (found_devs) { 1812 ha->device_flags |= DFLG_LOCAL_DEVICES; 1813 ha->device_flags &= ~DFLG_RETRY_LOCAL_DEVICES; 1814 } 1815 1816 return (rval); 1817 } 1818 1819 static void 1820 qla2x00_probe_for_all_luns(scsi_qla_host_t *ha) 1821 { 1822 fc_port_t *fcport; 1823 1824 qla2x00_mark_all_devices_lost(ha); 1825 list_for_each_entry(fcport, &ha->fcports, list) { 1826 if (fcport->port_type != FCT_TARGET) 1827 continue; 1828 1829 qla2x00_update_fcport(ha, fcport); 1830 } 1831 } 1832 1833 /* 1834 * qla2x00_update_fcport 1835 * Updates device on list. 1836 * 1837 * Input: 1838 * ha = adapter block pointer. 1839 * fcport = port structure pointer. 1840 * 1841 * Return: 1842 * 0 - Success 1843 * BIT_0 - error 1844 * 1845 * Context: 1846 * Kernel context. 1847 */ 1848 static void 1849 qla2x00_update_fcport(scsi_qla_host_t *ha, fc_port_t *fcport) 1850 { 1851 uint16_t index; 1852 unsigned long flags; 1853 srb_t *sp; 1854 1855 fcport->ha = ha; 1856 fcport->login_retry = 0; 1857 fcport->port_login_retry_count = ha->port_down_retry_count * 1858 PORT_RETRY_TIME; 1859 atomic_set(&fcport->port_down_timer, ha->port_down_retry_count * 1860 PORT_RETRY_TIME); 1861 fcport->flags &= ~FCF_LOGIN_NEEDED; 1862 1863 /* 1864 * Check for outstanding cmd on tape Bypass LUN discovery if active 1865 * command on tape. 1866 */ 1867 if (fcport->flags & FCF_TAPE_PRESENT) { 1868 spin_lock_irqsave(&ha->hardware_lock, flags); 1869 for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) { 1870 fc_port_t *sfcp; 1871 1872 if ((sp = ha->outstanding_cmds[index]) != 0) { 1873 sfcp = sp->fcport; 1874 if (sfcp == fcport) { 1875 atomic_set(&fcport->state, FCS_ONLINE); 1876 spin_unlock_irqrestore( 1877 &ha->hardware_lock, flags); 1878 return; 1879 } 1880 } 1881 } 1882 spin_unlock_irqrestore(&ha->hardware_lock, flags); 1883 } 1884 1885 if (fcport->port_type == FCT_INITIATOR || 1886 fcport->port_type == FCT_BROADCAST) 1887 fcport->device_type = TYPE_PROCESSOR; 1888 1889 atomic_set(&fcport->state, FCS_ONLINE); 1890 1891 if (ha->flags.init_done) 1892 qla2x00_reg_remote_port(ha, fcport); 1893 } 1894 1895 void 1896 qla2x00_reg_remote_port(scsi_qla_host_t *ha, fc_port_t *fcport) 1897 { 1898 struct fc_rport_identifiers rport_ids; 1899 struct fc_rport *rport; 1900 1901 if (fcport->rport) { 1902 fc_remote_port_unblock(fcport->rport); 1903 return; 1904 } 1905 1906 rport_ids.node_name = be64_to_cpu(*(uint64_t *)fcport->node_name); 1907 rport_ids.port_name = be64_to_cpu(*(uint64_t *)fcport->port_name); 1908 rport_ids.port_id = fcport->d_id.b.domain << 16 | 1909 fcport->d_id.b.area << 8 | fcport->d_id.b.al_pa; 1910 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN; 1911 if (fcport->port_type == FCT_INITIATOR) 1912 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR; 1913 if (fcport->port_type == FCT_TARGET) 1914 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET; 1915 1916 fcport->rport = rport = fc_remote_port_add(ha->host, 0, &rport_ids); 1917 if (!rport) 1918 qla_printk(KERN_WARNING, ha, 1919 "Unable to allocate fc remote port!\n"); 1920 1921 if (rport->scsi_target_id != -1 && rport->scsi_target_id < MAX_TARGETS) 1922 fcport->os_target_id = rport->scsi_target_id; 1923 1924 rport->dd_data = fcport; 1925 } 1926 1927 /* 1928 * qla2x00_configure_fabric 1929 * Setup SNS devices with loop ID's. 1930 * 1931 * Input: 1932 * ha = adapter block pointer. 1933 * 1934 * Returns: 1935 * 0 = success. 1936 * BIT_0 = error 1937 */ 1938 static int 1939 qla2x00_configure_fabric(scsi_qla_host_t *ha) 1940 { 1941 int rval, rval2; 1942 fc_port_t *fcport, *fcptemp; 1943 uint16_t next_loopid; 1944 uint16_t mb[MAILBOX_REGISTER_COUNT]; 1945 LIST_HEAD(new_fcports); 1946 1947 /* If FL port exists, then SNS is present */ 1948 rval = qla2x00_get_port_name(ha, SNS_FL_PORT, NULL, 0); 1949 if (rval != QLA_SUCCESS) { 1950 DEBUG2(printk("scsi(%ld): MBC_GET_PORT_NAME Failed, No FL " 1951 "Port\n", ha->host_no)); 1952 1953 ha->device_flags &= ~SWITCH_FOUND; 1954 return (QLA_SUCCESS); 1955 } 1956 1957 /* Mark devices that need re-synchronization. */ 1958 rval2 = qla2x00_device_resync(ha); 1959 if (rval2 == QLA_RSCNS_HANDLED) { 1960 /* No point doing the scan, just continue. */ 1961 return (QLA_SUCCESS); 1962 } 1963 do { 1964 /* Ensure we are logged into the SNS. */ 1965 qla2x00_login_fabric(ha, SIMPLE_NAME_SERVER, 0xff, 0xff, 0xfc, 1966 mb, BIT_1 | BIT_0); 1967 if (mb[0] != MBS_COMMAND_COMPLETE) { 1968 DEBUG2(qla_printk(KERN_INFO, ha, 1969 "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x " 1970 "mb[2]=%x mb[6]=%x mb[7]=%x\n", SIMPLE_NAME_SERVER, 1971 mb[0], mb[1], mb[2], mb[6], mb[7])); 1972 return (QLA_SUCCESS); 1973 } 1974 1975 if (test_and_clear_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags)) { 1976 if (qla2x00_rft_id(ha)) { 1977 /* EMPTY */ 1978 DEBUG2(printk("scsi(%ld): Register FC-4 " 1979 "TYPE failed.\n", ha->host_no)); 1980 } 1981 if (qla2x00_rff_id(ha)) { 1982 /* EMPTY */ 1983 DEBUG2(printk("scsi(%ld): Register FC-4 " 1984 "Features failed.\n", ha->host_no)); 1985 } 1986 if (qla2x00_rnn_id(ha)) { 1987 /* EMPTY */ 1988 DEBUG2(printk("scsi(%ld): Register Node Name " 1989 "failed.\n", ha->host_no)); 1990 } else if (qla2x00_rsnn_nn(ha)) { 1991 /* EMPTY */ 1992 DEBUG2(printk("scsi(%ld): Register Symbolic " 1993 "Node Name failed.\n", ha->host_no)); 1994 } 1995 } 1996 1997 rval = qla2x00_find_all_fabric_devs(ha, &new_fcports); 1998 if (rval != QLA_SUCCESS) 1999 break; 2000 2001 /* 2002 * Logout all previous fabric devices marked lost, except 2003 * tape devices. 2004 */ 2005 list_for_each_entry(fcport, &ha->fcports, list) { 2006 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) 2007 break; 2008 2009 if ((fcport->flags & FCF_FABRIC_DEVICE) == 0) 2010 continue; 2011 2012 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) { 2013 qla2x00_mark_device_lost(ha, fcport, 2014 ql2xplogiabsentdevice); 2015 if (fcport->loop_id != FC_NO_LOOP_ID && 2016 (fcport->flags & FCF_TAPE_PRESENT) == 0 && 2017 fcport->port_type != FCT_INITIATOR && 2018 fcport->port_type != FCT_BROADCAST) { 2019 2020 qla2x00_fabric_logout(ha, 2021 fcport->loop_id); 2022 fcport->loop_id = FC_NO_LOOP_ID; 2023 } 2024 } 2025 } 2026 2027 /* Starting free loop ID. */ 2028 next_loopid = ha->min_external_loopid; 2029 2030 /* 2031 * Scan through our port list and login entries that need to be 2032 * logged in. 2033 */ 2034 list_for_each_entry(fcport, &ha->fcports, list) { 2035 if (atomic_read(&ha->loop_down_timer) || 2036 test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) 2037 break; 2038 2039 if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 || 2040 (fcport->flags & FCF_LOGIN_NEEDED) == 0) 2041 continue; 2042 2043 if (fcport->loop_id == FC_NO_LOOP_ID) { 2044 fcport->loop_id = next_loopid; 2045 rval = qla2x00_find_new_loop_id(ha, fcport); 2046 if (rval != QLA_SUCCESS) { 2047 /* Ran out of IDs to use */ 2048 break; 2049 } 2050 } 2051 2052 /* Login and update database */ 2053 qla2x00_fabric_dev_login(ha, fcport, &next_loopid); 2054 } 2055 2056 /* Exit if out of loop IDs. */ 2057 if (rval != QLA_SUCCESS) { 2058 break; 2059 } 2060 2061 /* 2062 * Login and add the new devices to our port list. 2063 */ 2064 list_for_each_entry_safe(fcport, fcptemp, &new_fcports, list) { 2065 if (atomic_read(&ha->loop_down_timer) || 2066 test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) 2067 break; 2068 2069 /* Find a new loop ID to use. */ 2070 fcport->loop_id = next_loopid; 2071 rval = qla2x00_find_new_loop_id(ha, fcport); 2072 if (rval != QLA_SUCCESS) { 2073 /* Ran out of IDs to use */ 2074 break; 2075 } 2076 2077 /* Remove device from the new list and add it to DB */ 2078 list_del(&fcport->list); 2079 list_add_tail(&fcport->list, &ha->fcports); 2080 2081 /* Login and update database */ 2082 qla2x00_fabric_dev_login(ha, fcport, &next_loopid); 2083 } 2084 } while (0); 2085 2086 /* Free all new device structures not processed. */ 2087 list_for_each_entry_safe(fcport, fcptemp, &new_fcports, list) { 2088 list_del(&fcport->list); 2089 kfree(fcport); 2090 } 2091 2092 if (rval) { 2093 DEBUG2(printk("scsi(%ld): Configure fabric error exit: " 2094 "rval=%d\n", ha->host_no, rval)); 2095 } 2096 2097 return (rval); 2098 } 2099 2100 2101 /* 2102 * qla2x00_find_all_fabric_devs 2103 * 2104 * Input: 2105 * ha = adapter block pointer. 2106 * dev = database device entry pointer. 2107 * 2108 * Returns: 2109 * 0 = success. 2110 * 2111 * Context: 2112 * Kernel context. 2113 */ 2114 static int 2115 qla2x00_find_all_fabric_devs(scsi_qla_host_t *ha, struct list_head *new_fcports) 2116 { 2117 int rval; 2118 uint16_t loop_id; 2119 fc_port_t *fcport, *new_fcport, *fcptemp; 2120 int found; 2121 2122 sw_info_t *swl; 2123 int swl_idx; 2124 int first_dev, last_dev; 2125 port_id_t wrap, nxt_d_id; 2126 2127 rval = QLA_SUCCESS; 2128 2129 /* Try GID_PT to get device list, else GAN. */ 2130 swl = kmalloc(sizeof(sw_info_t) * MAX_FIBRE_DEVICES, GFP_ATOMIC); 2131 if (swl == NULL) { 2132 /*EMPTY*/ 2133 DEBUG2(printk("scsi(%ld): GID_PT allocations failed, fallback " 2134 "on GA_NXT\n", ha->host_no)); 2135 } else { 2136 memset(swl, 0, sizeof(sw_info_t) * MAX_FIBRE_DEVICES); 2137 if (qla2x00_gid_pt(ha, swl) != QLA_SUCCESS) { 2138 kfree(swl); 2139 swl = NULL; 2140 } else if (qla2x00_gpn_id(ha, swl) != QLA_SUCCESS) { 2141 kfree(swl); 2142 swl = NULL; 2143 } else if (qla2x00_gnn_id(ha, swl) != QLA_SUCCESS) { 2144 kfree(swl); 2145 swl = NULL; 2146 } 2147 } 2148 swl_idx = 0; 2149 2150 /* Allocate temporary fcport for any new fcports discovered. */ 2151 new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL); 2152 if (new_fcport == NULL) { 2153 if (swl) 2154 kfree(swl); 2155 return (QLA_MEMORY_ALLOC_FAILED); 2156 } 2157 new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED); 2158 2159 /* Set start port ID scan at adapter ID. */ 2160 first_dev = 1; 2161 last_dev = 0; 2162 2163 /* Starting free loop ID. */ 2164 loop_id = ha->min_external_loopid; 2165 2166 for (; loop_id <= ha->last_loop_id; loop_id++) { 2167 if (RESERVED_LOOP_ID(loop_id)) 2168 continue; 2169 2170 if (atomic_read(&ha->loop_down_timer) || 2171 test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) 2172 break; 2173 2174 if (swl != NULL) { 2175 if (last_dev) { 2176 wrap.b24 = new_fcport->d_id.b24; 2177 } else { 2178 new_fcport->d_id.b24 = swl[swl_idx].d_id.b24; 2179 memcpy(new_fcport->node_name, 2180 swl[swl_idx].node_name, WWN_SIZE); 2181 memcpy(new_fcport->port_name, 2182 swl[swl_idx].port_name, WWN_SIZE); 2183 2184 if (swl[swl_idx].d_id.b.rsvd_1 != 0) { 2185 last_dev = 1; 2186 } 2187 swl_idx++; 2188 } 2189 } else { 2190 /* Send GA_NXT to the switch */ 2191 rval = qla2x00_ga_nxt(ha, new_fcport); 2192 if (rval != QLA_SUCCESS) { 2193 qla_printk(KERN_WARNING, ha, 2194 "SNS scan failed -- assuming zero-entry " 2195 "result...\n"); 2196 list_for_each_entry_safe(fcport, fcptemp, 2197 new_fcports, list) { 2198 list_del(&fcport->list); 2199 kfree(fcport); 2200 } 2201 rval = QLA_SUCCESS; 2202 break; 2203 } 2204 } 2205 2206 /* If wrap on switch device list, exit. */ 2207 if (first_dev) { 2208 wrap.b24 = new_fcport->d_id.b24; 2209 first_dev = 0; 2210 } else if (new_fcport->d_id.b24 == wrap.b24) { 2211 DEBUG2(printk("scsi(%ld): device wrap (%02x%02x%02x)\n", 2212 ha->host_no, new_fcport->d_id.b.domain, 2213 new_fcport->d_id.b.area, new_fcport->d_id.b.al_pa)); 2214 break; 2215 } 2216 2217 /* Bypass if host adapter. */ 2218 if (new_fcport->d_id.b24 == ha->d_id.b24) 2219 continue; 2220 2221 /* Bypass reserved domain fields. */ 2222 if ((new_fcport->d_id.b.domain & 0xf0) == 0xf0) 2223 continue; 2224 2225 /* Locate matching device in database. */ 2226 found = 0; 2227 list_for_each_entry(fcport, &ha->fcports, list) { 2228 if (memcmp(new_fcport->port_name, fcport->port_name, 2229 WWN_SIZE)) 2230 continue; 2231 2232 found++; 2233 2234 /* 2235 * If address the same and state FCS_ONLINE, nothing 2236 * changed. 2237 */ 2238 if (fcport->d_id.b24 == new_fcport->d_id.b24 && 2239 atomic_read(&fcport->state) == FCS_ONLINE) { 2240 break; 2241 } 2242 2243 /* 2244 * If device was not a fabric device before. 2245 */ 2246 if ((fcport->flags & FCF_FABRIC_DEVICE) == 0) { 2247 fcport->d_id.b24 = new_fcport->d_id.b24; 2248 fcport->loop_id = FC_NO_LOOP_ID; 2249 fcport->flags |= (FCF_FABRIC_DEVICE | 2250 FCF_LOGIN_NEEDED); 2251 fcport->flags &= ~FCF_PERSISTENT_BOUND; 2252 break; 2253 } 2254 2255 /* 2256 * Port ID changed or device was marked to be updated; 2257 * Log it out if still logged in and mark it for 2258 * relogin later. 2259 */ 2260 fcport->d_id.b24 = new_fcport->d_id.b24; 2261 fcport->flags |= FCF_LOGIN_NEEDED; 2262 if (fcport->loop_id != FC_NO_LOOP_ID && 2263 (fcport->flags & FCF_TAPE_PRESENT) == 0 && 2264 fcport->port_type != FCT_INITIATOR && 2265 fcport->port_type != FCT_BROADCAST) { 2266 qla2x00_fabric_logout(ha, fcport->loop_id); 2267 fcport->loop_id = FC_NO_LOOP_ID; 2268 } 2269 2270 break; 2271 } 2272 2273 if (found) 2274 continue; 2275 2276 /* If device was not in our fcports list, then add it. */ 2277 list_add_tail(&new_fcport->list, new_fcports); 2278 2279 /* Allocate a new replacement fcport. */ 2280 nxt_d_id.b24 = new_fcport->d_id.b24; 2281 new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL); 2282 if (new_fcport == NULL) { 2283 if (swl) 2284 kfree(swl); 2285 return (QLA_MEMORY_ALLOC_FAILED); 2286 } 2287 new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED); 2288 new_fcport->d_id.b24 = nxt_d_id.b24; 2289 } 2290 2291 if (swl) 2292 kfree(swl); 2293 2294 if (new_fcport) 2295 kfree(new_fcport); 2296 2297 if (!list_empty(new_fcports)) 2298 ha->device_flags |= DFLG_FABRIC_DEVICES; 2299 2300 return (rval); 2301 } 2302 2303 /* 2304 * qla2x00_find_new_loop_id 2305 * Scan through our port list and find a new usable loop ID. 2306 * 2307 * Input: 2308 * ha: adapter state pointer. 2309 * dev: port structure pointer. 2310 * 2311 * Returns: 2312 * qla2x00 local function return status code. 2313 * 2314 * Context: 2315 * Kernel context. 2316 */ 2317 int 2318 qla2x00_find_new_loop_id(scsi_qla_host_t *ha, fc_port_t *dev) 2319 { 2320 int rval; 2321 int found; 2322 fc_port_t *fcport; 2323 uint16_t first_loop_id; 2324 2325 rval = QLA_SUCCESS; 2326 2327 /* Save starting loop ID. */ 2328 first_loop_id = dev->loop_id; 2329 2330 for (;;) { 2331 /* Skip loop ID if already used by adapter. */ 2332 if (dev->loop_id == ha->loop_id) { 2333 dev->loop_id++; 2334 } 2335 2336 /* Skip reserved loop IDs. */ 2337 while (RESERVED_LOOP_ID(dev->loop_id)) { 2338 dev->loop_id++; 2339 } 2340 2341 /* Reset loop ID if passed the end. */ 2342 if (dev->loop_id > ha->last_loop_id) { 2343 /* first loop ID. */ 2344 dev->loop_id = ha->min_external_loopid; 2345 } 2346 2347 /* Check for loop ID being already in use. */ 2348 found = 0; 2349 fcport = NULL; 2350 list_for_each_entry(fcport, &ha->fcports, list) { 2351 if (fcport->loop_id == dev->loop_id && fcport != dev) { 2352 /* ID possibly in use */ 2353 found++; 2354 break; 2355 } 2356 } 2357 2358 /* If not in use then it is free to use. */ 2359 if (!found) { 2360 break; 2361 } 2362 2363 /* ID in use. Try next value. */ 2364 dev->loop_id++; 2365 2366 /* If wrap around. No free ID to use. */ 2367 if (dev->loop_id == first_loop_id) { 2368 dev->loop_id = FC_NO_LOOP_ID; 2369 rval = QLA_FUNCTION_FAILED; 2370 break; 2371 } 2372 } 2373 2374 return (rval); 2375 } 2376 2377 /* 2378 * qla2x00_device_resync 2379 * Marks devices in the database that needs resynchronization. 2380 * 2381 * Input: 2382 * ha = adapter block pointer. 2383 * 2384 * Context: 2385 * Kernel context. 2386 */ 2387 static int 2388 qla2x00_device_resync(scsi_qla_host_t *ha) 2389 { 2390 int rval; 2391 int rval2; 2392 uint32_t mask; 2393 fc_port_t *fcport; 2394 uint32_t rscn_entry; 2395 uint8_t rscn_out_iter; 2396 uint8_t format; 2397 port_id_t d_id; 2398 2399 rval = QLA_RSCNS_HANDLED; 2400 2401 while (ha->rscn_out_ptr != ha->rscn_in_ptr || 2402 ha->flags.rscn_queue_overflow) { 2403 2404 rscn_entry = ha->rscn_queue[ha->rscn_out_ptr]; 2405 format = MSB(MSW(rscn_entry)); 2406 d_id.b.domain = LSB(MSW(rscn_entry)); 2407 d_id.b.area = MSB(LSW(rscn_entry)); 2408 d_id.b.al_pa = LSB(LSW(rscn_entry)); 2409 2410 DEBUG(printk("scsi(%ld): RSCN queue entry[%d] = " 2411 "[%02x/%02x%02x%02x].\n", 2412 ha->host_no, ha->rscn_out_ptr, format, d_id.b.domain, 2413 d_id.b.area, d_id.b.al_pa)); 2414 2415 ha->rscn_out_ptr++; 2416 if (ha->rscn_out_ptr == MAX_RSCN_COUNT) 2417 ha->rscn_out_ptr = 0; 2418 2419 /* Skip duplicate entries. */ 2420 for (rscn_out_iter = ha->rscn_out_ptr; 2421 !ha->flags.rscn_queue_overflow && 2422 rscn_out_iter != ha->rscn_in_ptr; 2423 rscn_out_iter = (rscn_out_iter == 2424 (MAX_RSCN_COUNT - 1)) ? 0: rscn_out_iter + 1) { 2425 2426 if (rscn_entry != ha->rscn_queue[rscn_out_iter]) 2427 break; 2428 2429 DEBUG(printk("scsi(%ld): Skipping duplicate RSCN queue " 2430 "entry found at [%d].\n", ha->host_no, 2431 rscn_out_iter)); 2432 2433 ha->rscn_out_ptr = rscn_out_iter; 2434 } 2435 2436 /* Queue overflow, set switch default case. */ 2437 if (ha->flags.rscn_queue_overflow) { 2438 DEBUG(printk("scsi(%ld): device_resync: rscn " 2439 "overflow.\n", ha->host_no)); 2440 2441 format = 3; 2442 ha->flags.rscn_queue_overflow = 0; 2443 } 2444 2445 switch (format) { 2446 case 0: 2447 if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && 2448 !IS_QLA6312(ha) && !IS_QLA6322(ha) && 2449 ha->flags.init_done) { 2450 /* Handle port RSCN via asyncronous IOCBs */ 2451 rval2 = qla2x00_handle_port_rscn(ha, rscn_entry, 2452 NULL, 0); 2453 if (rval2 == QLA_SUCCESS) 2454 continue; 2455 } 2456 mask = 0xffffff; 2457 break; 2458 case 1: 2459 mask = 0xffff00; 2460 break; 2461 case 2: 2462 mask = 0xff0000; 2463 break; 2464 default: 2465 mask = 0x0; 2466 d_id.b24 = 0; 2467 ha->rscn_out_ptr = ha->rscn_in_ptr; 2468 break; 2469 } 2470 2471 rval = QLA_SUCCESS; 2472 2473 /* Abort any outstanding IO descriptors. */ 2474 if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) 2475 qla2x00_cancel_io_descriptors(ha); 2476 2477 list_for_each_entry(fcport, &ha->fcports, list) { 2478 if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 || 2479 (fcport->d_id.b24 & mask) != d_id.b24 || 2480 fcport->port_type == FCT_BROADCAST) 2481 continue; 2482 2483 if (atomic_read(&fcport->state) == FCS_ONLINE) { 2484 if (format != 3 || 2485 fcport->port_type != FCT_INITIATOR) { 2486 qla2x00_mark_device_lost(ha, fcport, 0); 2487 } 2488 } 2489 fcport->flags &= ~FCF_FARP_DONE; 2490 } 2491 } 2492 return (rval); 2493 } 2494 2495 /* 2496 * qla2x00_fabric_dev_login 2497 * Login fabric target device and update FC port database. 2498 * 2499 * Input: 2500 * ha: adapter state pointer. 2501 * fcport: port structure list pointer. 2502 * next_loopid: contains value of a new loop ID that can be used 2503 * by the next login attempt. 2504 * 2505 * Returns: 2506 * qla2x00 local function return status code. 2507 * 2508 * Context: 2509 * Kernel context. 2510 */ 2511 static int 2512 qla2x00_fabric_dev_login(scsi_qla_host_t *ha, fc_port_t *fcport, 2513 uint16_t *next_loopid) 2514 { 2515 int rval; 2516 int retry; 2517 2518 rval = QLA_SUCCESS; 2519 retry = 0; 2520 2521 rval = qla2x00_fabric_login(ha, fcport, next_loopid); 2522 if (rval == QLA_SUCCESS) { 2523 rval = qla2x00_get_port_database(ha, fcport, 0); 2524 if (rval != QLA_SUCCESS) { 2525 qla2x00_fabric_logout(ha, fcport->loop_id); 2526 } else { 2527 qla2x00_update_fcport(ha, fcport); 2528 } 2529 } 2530 2531 return (rval); 2532 } 2533 2534 /* 2535 * qla2x00_fabric_login 2536 * Issue fabric login command. 2537 * 2538 * Input: 2539 * ha = adapter block pointer. 2540 * device = pointer to FC device type structure. 2541 * 2542 * Returns: 2543 * 0 - Login successfully 2544 * 1 - Login failed 2545 * 2 - Initiator device 2546 * 3 - Fatal error 2547 */ 2548 int 2549 qla2x00_fabric_login(scsi_qla_host_t *ha, fc_port_t *fcport, 2550 uint16_t *next_loopid) 2551 { 2552 int rval; 2553 int retry; 2554 uint16_t tmp_loopid; 2555 uint16_t mb[MAILBOX_REGISTER_COUNT]; 2556 2557 retry = 0; 2558 tmp_loopid = 0; 2559 2560 for (;;) { 2561 DEBUG(printk("scsi(%ld): Trying Fabric Login w/loop id 0x%04x " 2562 "for port %02x%02x%02x.\n", 2563 ha->host_no, fcport->loop_id, fcport->d_id.b.domain, 2564 fcport->d_id.b.area, fcport->d_id.b.al_pa)); 2565 2566 /* Login fcport on switch. */ 2567 qla2x00_login_fabric(ha, fcport->loop_id, 2568 fcport->d_id.b.domain, fcport->d_id.b.area, 2569 fcport->d_id.b.al_pa, mb, BIT_0); 2570 if (mb[0] == MBS_PORT_ID_USED) { 2571 /* 2572 * Device has another loop ID. The firmware team 2573 * recommends us to perform an implicit login with the 2574 * specified ID again. The ID we just used is save here 2575 * so we return with an ID that can be tried by the 2576 * next login. 2577 */ 2578 retry++; 2579 tmp_loopid = fcport->loop_id; 2580 fcport->loop_id = mb[1]; 2581 2582 DEBUG(printk("Fabric Login: port in use - next " 2583 "loop id=0x%04x, port Id=%02x%02x%02x.\n", 2584 fcport->loop_id, fcport->d_id.b.domain, 2585 fcport->d_id.b.area, fcport->d_id.b.al_pa)); 2586 2587 } else if (mb[0] == MBS_COMMAND_COMPLETE) { 2588 /* 2589 * Login succeeded. 2590 */ 2591 if (retry) { 2592 /* A retry occurred before. */ 2593 *next_loopid = tmp_loopid; 2594 } else { 2595 /* 2596 * No retry occurred before. Just increment the 2597 * ID value for next login. 2598 */ 2599 *next_loopid = (fcport->loop_id + 1); 2600 } 2601 2602 if (mb[1] & BIT_0) { 2603 fcport->port_type = FCT_INITIATOR; 2604 } else { 2605 fcport->port_type = FCT_TARGET; 2606 if (mb[1] & BIT_1) { 2607 fcport->flags |= FCF_TAPE_PRESENT; 2608 } 2609 } 2610 2611 rval = QLA_SUCCESS; 2612 break; 2613 } else if (mb[0] == MBS_LOOP_ID_USED) { 2614 /* 2615 * Loop ID already used, try next loop ID. 2616 */ 2617 fcport->loop_id++; 2618 rval = qla2x00_find_new_loop_id(ha, fcport); 2619 if (rval != QLA_SUCCESS) { 2620 /* Ran out of loop IDs to use */ 2621 break; 2622 } 2623 } else if (mb[0] == MBS_COMMAND_ERROR) { 2624 /* 2625 * Firmware possibly timed out during login. If NO 2626 * retries are left to do then the device is declared 2627 * dead. 2628 */ 2629 *next_loopid = fcport->loop_id; 2630 qla2x00_fabric_logout(ha, fcport->loop_id); 2631 qla2x00_mark_device_lost(ha, fcport, 1); 2632 2633 rval = 1; 2634 break; 2635 } else { 2636 /* 2637 * unrecoverable / not handled error 2638 */ 2639 DEBUG2(printk("%s(%ld): failed=%x port_id=%02x%02x%02x " 2640 "loop_id=%x jiffies=%lx.\n", 2641 __func__, ha->host_no, mb[0], 2642 fcport->d_id.b.domain, fcport->d_id.b.area, 2643 fcport->d_id.b.al_pa, fcport->loop_id, jiffies)); 2644 2645 *next_loopid = fcport->loop_id; 2646 qla2x00_fabric_logout(ha, fcport->loop_id); 2647 fcport->loop_id = FC_NO_LOOP_ID; 2648 atomic_set(&fcport->state, FCS_DEVICE_DEAD); 2649 2650 rval = 3; 2651 break; 2652 } 2653 } 2654 2655 return (rval); 2656 } 2657 2658 /* 2659 * qla2x00_local_device_login 2660 * Issue local device login command. 2661 * 2662 * Input: 2663 * ha = adapter block pointer. 2664 * loop_id = loop id of device to login to. 2665 * 2666 * Returns (Where's the #define!!!!): 2667 * 0 - Login successfully 2668 * 1 - Login failed 2669 * 3 - Fatal error 2670 */ 2671 int 2672 qla2x00_local_device_login(scsi_qla_host_t *ha, uint16_t loop_id) 2673 { 2674 int rval; 2675 uint16_t mb[MAILBOX_REGISTER_COUNT]; 2676 2677 memset(mb, 0, sizeof(mb)); 2678 rval = qla2x00_login_local_device(ha, loop_id, mb, BIT_0); 2679 if (rval == QLA_SUCCESS) { 2680 /* Interrogate mailbox registers for any errors */ 2681 if (mb[0] == MBS_COMMAND_ERROR) 2682 rval = 1; 2683 else if (mb[0] == MBS_COMMAND_PARAMETER_ERROR) 2684 /* device not in PCB table */ 2685 rval = 3; 2686 } 2687 2688 return (rval); 2689 } 2690 2691 /* 2692 * qla2x00_loop_resync 2693 * Resync with fibre channel devices. 2694 * 2695 * Input: 2696 * ha = adapter block pointer. 2697 * 2698 * Returns: 2699 * 0 = success 2700 */ 2701 int 2702 qla2x00_loop_resync(scsi_qla_host_t *ha) 2703 { 2704 int rval; 2705 uint32_t wait_time; 2706 2707 rval = QLA_SUCCESS; 2708 2709 atomic_set(&ha->loop_state, LOOP_UPDATE); 2710 qla2x00_stats.loop_resync++; 2711 clear_bit(ISP_ABORT_RETRY, &ha->dpc_flags); 2712 if (ha->flags.online) { 2713 if (!(rval = qla2x00_fw_ready(ha))) { 2714 /* Wait at most MAX_TARGET RSCNs for a stable link. */ 2715 wait_time = 256; 2716 do { 2717 /* v2.19.05b6 */ 2718 atomic_set(&ha->loop_state, LOOP_UPDATE); 2719 2720 /* 2721 * Issue marker command only when we are going 2722 * to start the I/O . 2723 */ 2724 ha->marker_needed = 1; 2725 2726 /* Remap devices on Loop. */ 2727 clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags); 2728 2729 qla2x00_configure_loop(ha); 2730 wait_time--; 2731 } while (!atomic_read(&ha->loop_down_timer) && 2732 !(test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) && 2733 wait_time && 2734 (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))); 2735 } 2736 } 2737 2738 if (test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) { 2739 return (QLA_FUNCTION_FAILED); 2740 } 2741 2742 if (rval) { 2743 DEBUG2_3(printk("%s(): **** FAILED ****\n", __func__)); 2744 } 2745 2746 return (rval); 2747 } 2748 2749 void 2750 qla2x00_rescan_fcports(scsi_qla_host_t *ha) 2751 { 2752 int rescan_done; 2753 fc_port_t *fcport; 2754 2755 rescan_done = 0; 2756 list_for_each_entry(fcport, &ha->fcports, list) { 2757 if ((fcport->flags & FCF_RESCAN_NEEDED) == 0) 2758 continue; 2759 2760 qla2x00_update_fcport(ha, fcport); 2761 fcport->flags &= ~FCF_RESCAN_NEEDED; 2762 2763 rescan_done = 1; 2764 } 2765 qla2x00_probe_for_all_luns(ha); 2766 } 2767 2768 /* 2769 * qla2x00_abort_isp 2770 * Resets ISP and aborts all outstanding commands. 2771 * 2772 * Input: 2773 * ha = adapter block pointer. 2774 * 2775 * Returns: 2776 * 0 = success 2777 */ 2778 int 2779 qla2x00_abort_isp(scsi_qla_host_t *ha) 2780 { 2781 unsigned long flags = 0; 2782 uint16_t cnt; 2783 srb_t *sp; 2784 uint8_t status = 0; 2785 2786 if (ha->flags.online) { 2787 ha->flags.online = 0; 2788 clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); 2789 qla2x00_stats.ispAbort++; 2790 ha->total_isp_aborts++; /* used by ioctl */ 2791 ha->sns_retry_cnt = 0; 2792 2793 qla_printk(KERN_INFO, ha, 2794 "Performing ISP error recovery - ha= %p.\n", ha); 2795 qla2x00_reset_chip(ha); 2796 2797 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME); 2798 if (atomic_read(&ha->loop_state) != LOOP_DOWN) { 2799 atomic_set(&ha->loop_state, LOOP_DOWN); 2800 qla2x00_mark_all_devices_lost(ha); 2801 } else { 2802 if (!atomic_read(&ha->loop_down_timer)) 2803 atomic_set(&ha->loop_down_timer, 2804 LOOP_DOWN_TIME); 2805 } 2806 2807 spin_lock_irqsave(&ha->hardware_lock, flags); 2808 /* Requeue all commands in outstanding command list. */ 2809 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) { 2810 sp = ha->outstanding_cmds[cnt]; 2811 if (sp) { 2812 ha->outstanding_cmds[cnt] = NULL; 2813 if (ha->actthreads) 2814 ha->actthreads--; 2815 sp->flags = 0; 2816 sp->cmd->result = DID_RESET << 16; 2817 sp->cmd->host_scribble = (unsigned char *)NULL; 2818 qla2x00_sp_compl(ha, sp); 2819 } 2820 } 2821 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2822 2823 qla2x00_nvram_config(ha); 2824 2825 if (!qla2x00_restart_isp(ha)) { 2826 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags); 2827 2828 if (!atomic_read(&ha->loop_down_timer)) { 2829 /* 2830 * Issue marker command only when we are going 2831 * to start the I/O . 2832 */ 2833 ha->marker_needed = 1; 2834 } 2835 2836 ha->flags.online = 1; 2837 2838 /* Enable ISP interrupts. */ 2839 qla2x00_enable_intrs(ha); 2840 2841 ha->isp_abort_cnt = 0; 2842 clear_bit(ISP_ABORT_RETRY, &ha->dpc_flags); 2843 } else { /* failed the ISP abort */ 2844 ha->flags.online = 1; 2845 if (test_bit(ISP_ABORT_RETRY, &ha->dpc_flags)) { 2846 if (ha->isp_abort_cnt == 0) { 2847 qla_printk(KERN_WARNING, ha, 2848 "ISP error recovery failed - " 2849 "board disabled\n"); 2850 /* 2851 * The next call disables the board 2852 * completely. 2853 */ 2854 qla2x00_reset_adapter(ha); 2855 ha->flags.online = 0; 2856 clear_bit(ISP_ABORT_RETRY, 2857 &ha->dpc_flags); 2858 status = 0; 2859 } else { /* schedule another ISP abort */ 2860 ha->isp_abort_cnt--; 2861 DEBUG(printk("qla%ld: ISP abort - " 2862 "retry remainning %d\n", 2863 ha->host_no, ha->isp_abort_cnt);) 2864 status = 1; 2865 } 2866 } else { 2867 ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT; 2868 DEBUG(printk("qla2x00(%ld): ISP error recovery " 2869 "- retrying (%d) more times\n", 2870 ha->host_no, ha->isp_abort_cnt);) 2871 set_bit(ISP_ABORT_RETRY, &ha->dpc_flags); 2872 status = 1; 2873 } 2874 } 2875 2876 } 2877 2878 if (status) { 2879 qla_printk(KERN_INFO, ha, 2880 "qla2x00_abort_isp: **** FAILED ****\n"); 2881 } else { 2882 DEBUG(printk(KERN_INFO 2883 "qla2x00_abort_isp(%ld): exiting.\n", 2884 ha->host_no);) 2885 } 2886 2887 return(status); 2888 } 2889 2890 /* 2891 * qla2x00_restart_isp 2892 * restarts the ISP after a reset 2893 * 2894 * Input: 2895 * ha = adapter block pointer. 2896 * 2897 * Returns: 2898 * 0 = success 2899 */ 2900 static int 2901 qla2x00_restart_isp(scsi_qla_host_t *ha) 2902 { 2903 uint8_t status = 0; 2904 device_reg_t __iomem *reg = ha->iobase; 2905 unsigned long flags = 0; 2906 uint32_t wait_time; 2907 2908 /* If firmware needs to be loaded */ 2909 if (qla2x00_isp_firmware(ha)) { 2910 ha->flags.online = 0; 2911 if (!(status = qla2x00_chip_diag(ha))) { 2912 if (IS_QLA2100(ha) || IS_QLA2200(ha)) { 2913 status = qla2x00_setup_chip(ha); 2914 goto done; 2915 } 2916 2917 reg = ha->iobase; 2918 2919 spin_lock_irqsave(&ha->hardware_lock, flags); 2920 2921 /* Disable SRAM, Instruction RAM and GP RAM parity. */ 2922 WRT_REG_WORD(®->hccr, (HCCR_ENABLE_PARITY + 0x0)); 2923 RD_REG_WORD(®->hccr); /* PCI Posting. */ 2924 2925 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2926 2927 status = qla2x00_setup_chip(ha); 2928 2929 spin_lock_irqsave(&ha->hardware_lock, flags); 2930 2931 /* Enable proper parity */ 2932 if (IS_QLA2300(ha)) 2933 /* SRAM parity */ 2934 WRT_REG_WORD(®->hccr, 2935 (HCCR_ENABLE_PARITY + 0x1)); 2936 else 2937 /* SRAM, Instruction RAM and GP RAM parity */ 2938 WRT_REG_WORD(®->hccr, 2939 (HCCR_ENABLE_PARITY + 0x7)); 2940 RD_REG_WORD(®->hccr); /* PCI Posting. */ 2941 2942 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2943 } 2944 } 2945 2946 done: 2947 if (!status && !(status = qla2x00_init_rings(ha))) { 2948 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags); 2949 if (!(status = qla2x00_fw_ready(ha))) { 2950 DEBUG(printk("%s(): Start configure loop, " 2951 "status = %d\n", 2952 __func__, 2953 status);) 2954 ha->flags.online = 1; 2955 /* Wait at most MAX_TARGET RSCNs for a stable link. */ 2956 wait_time = 256; 2957 do { 2958 clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags); 2959 qla2x00_configure_loop(ha); 2960 wait_time--; 2961 } while (!atomic_read(&ha->loop_down_timer) && 2962 !(test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) && 2963 wait_time && 2964 (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))); 2965 } 2966 2967 /* if no cable then assume it's good */ 2968 if ((ha->device_flags & DFLG_NO_CABLE)) 2969 status = 0; 2970 2971 DEBUG(printk("%s(): Configure loop done, status = 0x%x\n", 2972 __func__, 2973 status);) 2974 } 2975 return (status); 2976 } 2977 2978 /* 2979 * qla2x00_reset_adapter 2980 * Reset adapter. 2981 * 2982 * Input: 2983 * ha = adapter block pointer. 2984 */ 2985 static void 2986 qla2x00_reset_adapter(scsi_qla_host_t *ha) 2987 { 2988 unsigned long flags = 0; 2989 device_reg_t __iomem *reg = ha->iobase; 2990 2991 ha->flags.online = 0; 2992 qla2x00_disable_intrs(ha); 2993 2994 /* Reset RISC processor. */ 2995 spin_lock_irqsave(&ha->hardware_lock, flags); 2996 WRT_REG_WORD(®->hccr, HCCR_RESET_RISC); 2997 RD_REG_WORD(®->hccr); /* PCI Posting. */ 2998 WRT_REG_WORD(®->hccr, HCCR_RELEASE_RISC); 2999 RD_REG_WORD(®->hccr); /* PCI Posting. */ 3000 spin_unlock_irqrestore(&ha->hardware_lock, flags); 3001 } 3002