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