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 23 #include "qla_devtbl.h" 24 25 /* XXX(hch): this is ugly, but we don't want to pull in exioctl.h */ 26 #ifndef EXT_IS_LUN_BIT_SET 27 #define EXT_IS_LUN_BIT_SET(P,L) \ 28 (((P)->mask[L/8] & (0x80 >> (L%8)))?1:0) 29 #define EXT_SET_LUN_BIT(P,L) \ 30 ((P)->mask[L/8] |= (0x80 >> (L%8))) 31 #endif 32 33 /* 34 * QLogic ISP2x00 Hardware Support Function Prototypes. 35 */ 36 static int qla2x00_pci_config(scsi_qla_host_t *); 37 static int qla2x00_isp_firmware(scsi_qla_host_t *); 38 static void qla2x00_reset_chip(scsi_qla_host_t *); 39 static int qla2x00_chip_diag(scsi_qla_host_t *); 40 static void qla2x00_resize_request_q(scsi_qla_host_t *); 41 static int qla2x00_setup_chip(scsi_qla_host_t *); 42 static void qla2x00_init_response_q_entries(scsi_qla_host_t *); 43 static int qla2x00_init_rings(scsi_qla_host_t *); 44 static int qla2x00_fw_ready(scsi_qla_host_t *); 45 static int qla2x00_configure_hba(scsi_qla_host_t *); 46 static int qla2x00_nvram_config(scsi_qla_host_t *); 47 static void qla2x00_init_tgt_map(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 void qla2x00_lun_discovery(scsi_qla_host_t *, fc_port_t *); 52 static int qla2x00_rpt_lun_discovery(scsi_qla_host_t *, fc_port_t *, 53 inq_cmd_rsp_t *, dma_addr_t); 54 static int qla2x00_report_lun(scsi_qla_host_t *, fc_port_t *); 55 static fc_lun_t *qla2x00_cfg_lun(scsi_qla_host_t *, fc_port_t *, uint16_t, 56 inq_cmd_rsp_t *, dma_addr_t); 57 static fc_lun_t * qla2x00_add_lun(fc_port_t *, uint16_t); 58 static int qla2x00_inquiry(scsi_qla_host_t *, fc_port_t *, uint16_t, 59 inq_cmd_rsp_t *, dma_addr_t); 60 static int qla2x00_configure_fabric(scsi_qla_host_t *); 61 static int qla2x00_find_all_fabric_devs(scsi_qla_host_t *, struct list_head *); 62 static int qla2x00_device_resync(scsi_qla_host_t *); 63 static int qla2x00_fabric_dev_login(scsi_qla_host_t *, fc_port_t *, 64 uint16_t *); 65 static void qla2x00_config_os(scsi_qla_host_t *ha); 66 static uint16_t qla2x00_fcport_bind(scsi_qla_host_t *ha, fc_port_t *fcport); 67 static os_lun_t * qla2x00_fclun_bind(scsi_qla_host_t *, fc_port_t *, 68 fc_lun_t *); 69 static void qla2x00_lun_free(scsi_qla_host_t *, uint16_t, uint16_t); 70 71 static int qla2x00_restart_isp(scsi_qla_host_t *); 72 static void qla2x00_reset_adapter(scsi_qla_host_t *); 73 static os_tgt_t *qla2x00_tgt_alloc(scsi_qla_host_t *, uint16_t); 74 static os_lun_t *qla2x00_lun_alloc(scsi_qla_host_t *, uint16_t, uint16_t); 75 76 /****************************************************************************/ 77 /* QLogic ISP2x00 Hardware Support Functions. */ 78 /****************************************************************************/ 79 80 /* 81 * qla2x00_initialize_adapter 82 * Initialize board. 83 * 84 * Input: 85 * ha = adapter block pointer. 86 * 87 * Returns: 88 * 0 = success 89 */ 90 int 91 qla2x00_initialize_adapter(scsi_qla_host_t *ha) 92 { 93 int rval; 94 uint8_t restart_risc = 0; 95 uint8_t retry; 96 uint32_t wait_time; 97 98 /* Clear adapter flags. */ 99 ha->flags.online = 0; 100 ha->flags.reset_active = 0; 101 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME); 102 atomic_set(&ha->loop_state, LOOP_DOWN); 103 ha->device_flags = 0; 104 ha->sns_retry_cnt = 0; 105 ha->dpc_flags = 0; 106 ha->failback_delay = 0; 107 ha->flags.management_server_logged_in = 0; 108 ha->marker_needed = 0; 109 ha->mbx_flags = 0; 110 ha->isp_abort_cnt = 0; 111 ha->beacon_blink_led = 0; 112 113 rval = qla2x00_pci_config(ha); 114 if (rval) { 115 DEBUG2(printk("scsi(%ld): Unable to configure PCI space=n", 116 ha->host_no)); 117 return (rval); 118 } 119 120 qla2x00_reset_chip(ha); 121 122 /* Initialize target map database. */ 123 qla2x00_init_tgt_map(ha); 124 125 qla_printk(KERN_INFO, ha, "Configure NVRAM parameters...\n"); 126 qla2x00_nvram_config(ha); 127 128 qla_printk(KERN_INFO, ha, "Verifying loaded RISC code...\n"); 129 130 retry = 10; 131 /* 132 * Try to configure the loop. 133 */ 134 do { 135 restart_risc = 0; 136 137 /* If firmware needs to be loaded */ 138 if (qla2x00_isp_firmware(ha) != QLA_SUCCESS) { 139 if ((rval = qla2x00_chip_diag(ha)) == QLA_SUCCESS) { 140 rval = qla2x00_setup_chip(ha); 141 } 142 } 143 144 if (rval == QLA_SUCCESS && 145 (rval = qla2x00_init_rings(ha)) == QLA_SUCCESS) { 146 check_fw_ready_again: 147 /* 148 * Wait for a successful LIP up to a maximum 149 * of (in seconds): RISC login timeout value, 150 * RISC retry count value, and port down retry 151 * value OR a minimum of 4 seconds OR If no 152 * cable, only 5 seconds. 153 */ 154 rval = qla2x00_fw_ready(ha); 155 if (rval == QLA_SUCCESS) { 156 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags); 157 158 /* 159 * Wait at most MAX_TARGET RSCNs for a stable 160 * link. 161 */ 162 wait_time = 256; 163 do { 164 clear_bit(LOOP_RESYNC_NEEDED, 165 &ha->dpc_flags); 166 rval = qla2x00_configure_loop(ha); 167 168 if (test_and_clear_bit(ISP_ABORT_NEEDED, 169 &ha->dpc_flags)) { 170 restart_risc = 1; 171 break; 172 } 173 174 /* 175 * If loop state change while we were 176 * discoverying devices then wait for 177 * LIP to complete 178 */ 179 180 if (atomic_read(&ha->loop_state) == 181 LOOP_DOWN && retry--) { 182 goto check_fw_ready_again; 183 } 184 wait_time--; 185 } while (!atomic_read(&ha->loop_down_timer) && 186 retry && 187 wait_time && 188 (test_bit(LOOP_RESYNC_NEEDED, 189 &ha->dpc_flags))); 190 191 if (wait_time == 0) 192 rval = QLA_FUNCTION_FAILED; 193 if (ha->mem_err) 194 restart_risc = 1; 195 } else if (ha->device_flags & DFLG_NO_CABLE) 196 /* If no cable, then all is good. */ 197 rval = QLA_SUCCESS; 198 } 199 } while (restart_risc && retry--); 200 201 if (rval == QLA_SUCCESS) { 202 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags); 203 ha->marker_needed = 1; 204 qla2x00_marker(ha, 0, 0, MK_SYNC_ALL); 205 ha->marker_needed = 0; 206 207 ha->flags.online = 1; 208 } else { 209 DEBUG2_3(printk("%s(): **** FAILED ****\n", __func__)); 210 } 211 212 return (rval); 213 } 214 215 /** 216 * qla2x00_pci_config() - Setup device PCI configuration registers. 217 * @ha: HA context 218 * 219 * Returns 0 on success. 220 */ 221 static int 222 qla2x00_pci_config(scsi_qla_host_t *ha) 223 { 224 uint16_t w, mwi; 225 unsigned long flags = 0; 226 uint32_t cnt; 227 228 qla_printk(KERN_INFO, ha, "Configuring PCI space...\n"); 229 230 /* 231 * Turn on PCI master; for system BIOSes that don't turn it on by 232 * default. 233 */ 234 pci_set_master(ha->pdev); 235 mwi = 0; 236 if (pci_set_mwi(ha->pdev)) 237 mwi = PCI_COMMAND_INVALIDATE; 238 pci_read_config_word(ha->pdev, PCI_REVISION_ID, &ha->revision); 239 240 if (!ha->iobase) 241 return (QLA_FUNCTION_FAILED); 242 243 /* 244 * We want to respect framework's setting of PCI configuration space 245 * command register and also want to make sure that all bits of 246 * interest to us are properly set in command register. 247 */ 248 pci_read_config_word(ha->pdev, PCI_COMMAND, &w); 249 w |= mwi | (PCI_COMMAND_PARITY | PCI_COMMAND_SERR); 250 251 /* Get PCI bus information. */ 252 spin_lock_irqsave(&ha->hardware_lock, flags); 253 ha->pci_attr = RD_REG_WORD(&ha->iobase->ctrl_status); 254 spin_unlock_irqrestore(&ha->hardware_lock, flags); 255 256 if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) { 257 pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80); 258 259 /* PCI Specification Revision 2.3 changes */ 260 if (IS_QLA2322(ha) || IS_QLA6322(ha)) 261 /* Command Register - Reset Interrupt Disable. */ 262 w &= ~PCI_COMMAND_INTX_DISABLE; 263 264 /* 265 * If this is a 2300 card and not 2312, reset the 266 * COMMAND_INVALIDATE due to a bug in the 2300. Unfortunately, 267 * the 2310 also reports itself as a 2300 so we need to get the 268 * fb revision level -- a 6 indicates it really is a 2300 and 269 * not a 2310. 270 */ 271 if (IS_QLA2300(ha)) { 272 spin_lock_irqsave(&ha->hardware_lock, flags); 273 274 /* Pause RISC. */ 275 WRT_REG_WORD(&ha->iobase->hccr, HCCR_PAUSE_RISC); 276 for (cnt = 0; cnt < 30000; cnt++) { 277 if ((RD_REG_WORD(&ha->iobase->hccr) & 278 HCCR_RISC_PAUSE) != 0) 279 break; 280 281 udelay(10); 282 } 283 284 /* Select FPM registers. */ 285 WRT_REG_WORD(&ha->iobase->ctrl_status, 0x20); 286 RD_REG_WORD(&ha->iobase->ctrl_status); 287 288 /* Get the fb rev level */ 289 ha->fb_rev = RD_FB_CMD_REG(ha, ha->iobase); 290 291 if (ha->fb_rev == FPM_2300) 292 w &= ~PCI_COMMAND_INVALIDATE; 293 294 /* Deselect FPM registers. */ 295 WRT_REG_WORD(&ha->iobase->ctrl_status, 0x0); 296 RD_REG_WORD(&ha->iobase->ctrl_status); 297 298 /* Release RISC module. */ 299 WRT_REG_WORD(&ha->iobase->hccr, HCCR_RELEASE_RISC); 300 for (cnt = 0; cnt < 30000; cnt++) { 301 if ((RD_REG_WORD(&ha->iobase->hccr) & 302 HCCR_RISC_PAUSE) == 0) 303 break; 304 305 udelay(10); 306 } 307 308 spin_unlock_irqrestore(&ha->hardware_lock, flags); 309 } 310 } 311 312 pci_write_config_word(ha->pdev, PCI_COMMAND, w); 313 314 /* Reset expansion ROM address decode enable */ 315 pci_read_config_word(ha->pdev, PCI_ROM_ADDRESS, &w); 316 w &= ~PCI_ROM_ADDRESS_ENABLE; 317 pci_write_config_word(ha->pdev, PCI_ROM_ADDRESS, w); 318 319 return (QLA_SUCCESS); 320 } 321 322 /** 323 * qla2x00_isp_firmware() - Choose firmware image. 324 * @ha: HA context 325 * 326 * Returns 0 on success. 327 */ 328 static int 329 qla2x00_isp_firmware(scsi_qla_host_t *ha) 330 { 331 int rval; 332 333 /* Assume loading risc code */ 334 rval = QLA_FUNCTION_FAILED; 335 336 if (ha->flags.disable_risc_code_load) { 337 DEBUG2(printk("scsi(%ld): RISC CODE NOT loaded\n", 338 ha->host_no)); 339 qla_printk(KERN_INFO, ha, "RISC CODE NOT loaded\n"); 340 341 /* Verify checksum of loaded RISC code. */ 342 rval = qla2x00_verify_checksum(ha); 343 } 344 345 if (rval) { 346 DEBUG2_3(printk("scsi(%ld): **** Load RISC code ****\n", 347 ha->host_no)); 348 } 349 350 return (rval); 351 } 352 353 /** 354 * qla2x00_reset_chip() - Reset ISP chip. 355 * @ha: HA context 356 * 357 * Returns 0 on success. 358 */ 359 static void 360 qla2x00_reset_chip(scsi_qla_host_t *ha) 361 { 362 unsigned long flags = 0; 363 device_reg_t __iomem *reg = ha->iobase; 364 uint32_t cnt; 365 unsigned long mbx_flags = 0; 366 uint16_t cmd; 367 368 /* Disable ISP interrupts. */ 369 qla2x00_disable_intrs(ha); 370 371 spin_lock_irqsave(&ha->hardware_lock, flags); 372 373 /* Turn off master enable */ 374 cmd = 0; 375 pci_read_config_word(ha->pdev, PCI_COMMAND, &cmd); 376 cmd &= ~PCI_COMMAND_MASTER; 377 pci_write_config_word(ha->pdev, PCI_COMMAND, cmd); 378 379 if (!IS_QLA2100(ha)) { 380 /* Pause RISC. */ 381 WRT_REG_WORD(®->hccr, HCCR_PAUSE_RISC); 382 if (IS_QLA2200(ha) || IS_QLA2300(ha)) { 383 for (cnt = 0; cnt < 30000; cnt++) { 384 if ((RD_REG_WORD(®->hccr) & 385 HCCR_RISC_PAUSE) != 0) 386 break; 387 udelay(100); 388 } 389 } else { 390 RD_REG_WORD(®->hccr); /* PCI Posting. */ 391 udelay(10); 392 } 393 394 /* Select FPM registers. */ 395 WRT_REG_WORD(®->ctrl_status, 0x20); 396 RD_REG_WORD(®->ctrl_status); /* PCI Posting. */ 397 398 /* FPM Soft Reset. */ 399 WRT_REG_WORD(®->fpm_diag_config, 0x100); 400 RD_REG_WORD(®->fpm_diag_config); /* PCI Posting. */ 401 402 /* Toggle Fpm Reset. */ 403 if (!IS_QLA2200(ha)) { 404 WRT_REG_WORD(®->fpm_diag_config, 0x0); 405 RD_REG_WORD(®->fpm_diag_config); /* PCI Posting. */ 406 } 407 408 /* Select frame buffer registers. */ 409 WRT_REG_WORD(®->ctrl_status, 0x10); 410 RD_REG_WORD(®->ctrl_status); /* PCI Posting. */ 411 412 /* Reset frame buffer FIFOs. */ 413 if (IS_QLA2200(ha)) { 414 WRT_FB_CMD_REG(ha, reg, 0xa000); 415 RD_FB_CMD_REG(ha, reg); /* PCI Posting. */ 416 } else { 417 WRT_FB_CMD_REG(ha, reg, 0x00fc); 418 419 /* Read back fb_cmd until zero or 3 seconds max */ 420 for (cnt = 0; cnt < 3000; cnt++) { 421 if ((RD_FB_CMD_REG(ha, reg) & 0xff) == 0) 422 break; 423 udelay(100); 424 } 425 } 426 427 /* Select RISC module registers. */ 428 WRT_REG_WORD(®->ctrl_status, 0); 429 RD_REG_WORD(®->ctrl_status); /* PCI Posting. */ 430 431 /* Reset RISC processor. */ 432 WRT_REG_WORD(®->hccr, HCCR_RESET_RISC); 433 RD_REG_WORD(®->hccr); /* PCI Posting. */ 434 435 /* Release RISC processor. */ 436 WRT_REG_WORD(®->hccr, HCCR_RELEASE_RISC); 437 RD_REG_WORD(®->hccr); /* PCI Posting. */ 438 } 439 440 WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); 441 WRT_REG_WORD(®->hccr, HCCR_CLR_HOST_INT); 442 443 /* Reset ISP chip. */ 444 WRT_REG_WORD(®->ctrl_status, CSR_ISP_SOFT_RESET); 445 446 /* Wait for RISC to recover from reset. */ 447 if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) { 448 /* 449 * It is necessary to for a delay here since the card doesn't 450 * respond to PCI reads during a reset. On some architectures 451 * this will result in an MCA. 452 */ 453 udelay(20); 454 for (cnt = 30000; cnt; cnt--) { 455 if ((RD_REG_WORD(®->ctrl_status) & 456 CSR_ISP_SOFT_RESET) == 0) 457 break; 458 udelay(100); 459 } 460 } else 461 udelay(10); 462 463 /* Reset RISC processor. */ 464 WRT_REG_WORD(®->hccr, HCCR_RESET_RISC); 465 466 WRT_REG_WORD(®->semaphore, 0); 467 468 /* Release RISC processor. */ 469 WRT_REG_WORD(®->hccr, HCCR_RELEASE_RISC); 470 RD_REG_WORD(®->hccr); /* PCI Posting. */ 471 472 if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) { 473 for (cnt = 0; cnt < 30000; cnt++) { 474 if (!(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) 475 spin_lock_irqsave(&ha->mbx_reg_lock, mbx_flags); 476 477 if (RD_MAILBOX_REG(ha, reg, 0) != MBS_BUSY) { 478 if (!(test_bit(ABORT_ISP_ACTIVE, 479 &ha->dpc_flags))) 480 spin_unlock_irqrestore( 481 &ha->mbx_reg_lock, mbx_flags); 482 break; 483 } 484 485 if (!(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) 486 spin_unlock_irqrestore(&ha->mbx_reg_lock, 487 mbx_flags); 488 489 udelay(100); 490 } 491 } else 492 udelay(100); 493 494 /* Turn on master enable */ 495 cmd |= PCI_COMMAND_MASTER; 496 pci_write_config_word(ha->pdev, PCI_COMMAND, cmd); 497 498 /* Disable RISC pause on FPM parity error. */ 499 if (!IS_QLA2100(ha)) { 500 WRT_REG_WORD(®->hccr, HCCR_DISABLE_PARITY_PAUSE); 501 RD_REG_WORD(®->hccr); /* PCI Posting. */ 502 } 503 504 spin_unlock_irqrestore(&ha->hardware_lock, flags); 505 } 506 507 /** 508 * qla2x00_chip_diag() - Test chip for proper operation. 509 * @ha: HA context 510 * 511 * Returns 0 on success. 512 */ 513 static int 514 qla2x00_chip_diag(scsi_qla_host_t *ha) 515 { 516 int rval; 517 device_reg_t __iomem *reg = ha->iobase; 518 unsigned long flags = 0; 519 uint16_t data; 520 uint32_t cnt; 521 uint16_t mb[5]; 522 523 /* Assume a failed state */ 524 rval = QLA_FUNCTION_FAILED; 525 526 DEBUG3(printk("scsi(%ld): Testing device at %lx.\n", 527 ha->host_no, (u_long)®->flash_address)); 528 529 spin_lock_irqsave(&ha->hardware_lock, flags); 530 531 /* Reset ISP chip. */ 532 WRT_REG_WORD(®->ctrl_status, CSR_ISP_SOFT_RESET); 533 534 /* 535 * We need to have a delay here since the card will not respond while 536 * in reset causing an MCA on some architectures. 537 */ 538 udelay(20); 539 data = qla2x00_debounce_register(®->ctrl_status); 540 for (cnt = 6000000 ; cnt && (data & CSR_ISP_SOFT_RESET); cnt--) { 541 udelay(5); 542 data = RD_REG_WORD(®->ctrl_status); 543 barrier(); 544 } 545 546 if (!cnt) 547 goto chip_diag_failed; 548 549 DEBUG3(printk("scsi(%ld): Reset register cleared by chip reset\n", 550 ha->host_no)); 551 552 /* Reset RISC processor. */ 553 WRT_REG_WORD(®->hccr, HCCR_RESET_RISC); 554 WRT_REG_WORD(®->hccr, HCCR_RELEASE_RISC); 555 556 /* Workaround for QLA2312 PCI parity error */ 557 if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) { 558 data = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 0)); 559 for (cnt = 6000000; cnt && (data == MBS_BUSY); cnt--) { 560 udelay(5); 561 data = RD_MAILBOX_REG(ha, reg, 0); 562 barrier(); 563 } 564 } else 565 udelay(10); 566 567 if (!cnt) 568 goto chip_diag_failed; 569 570 /* Check product ID of chip */ 571 DEBUG3(printk("scsi(%ld): Checking product ID of chip\n", ha->host_no)); 572 573 mb[1] = RD_MAILBOX_REG(ha, reg, 1); 574 mb[2] = RD_MAILBOX_REG(ha, reg, 2); 575 mb[3] = RD_MAILBOX_REG(ha, reg, 3); 576 mb[4] = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 4)); 577 if (mb[1] != PROD_ID_1 || (mb[2] != PROD_ID_2 && mb[2] != PROD_ID_2a) || 578 mb[3] != PROD_ID_3) { 579 qla_printk(KERN_WARNING, ha, 580 "Wrong product ID = 0x%x,0x%x,0x%x\n", mb[1], mb[2], mb[3]); 581 582 goto chip_diag_failed; 583 } 584 ha->product_id[0] = mb[1]; 585 ha->product_id[1] = mb[2]; 586 ha->product_id[2] = mb[3]; 587 ha->product_id[3] = mb[4]; 588 589 /* Adjust fw RISC transfer size */ 590 if (ha->request_q_length > 1024) 591 ha->fw_transfer_size = REQUEST_ENTRY_SIZE * 1024; 592 else 593 ha->fw_transfer_size = REQUEST_ENTRY_SIZE * 594 ha->request_q_length; 595 596 if (IS_QLA2200(ha) && 597 RD_MAILBOX_REG(ha, reg, 7) == QLA2200A_RISC_ROM_VER) { 598 /* Limit firmware transfer size with a 2200A */ 599 DEBUG3(printk("scsi(%ld): Found QLA2200A chip.\n", 600 ha->host_no)); 601 602 ha->fw_transfer_size = 128; 603 } 604 605 /* Wrap Incoming Mailboxes Test. */ 606 spin_unlock_irqrestore(&ha->hardware_lock, flags); 607 608 DEBUG3(printk("scsi(%ld): Checking mailboxes.\n", ha->host_no)); 609 rval = qla2x00_mbx_reg_test(ha); 610 if (rval) { 611 DEBUG(printk("scsi(%ld): Failed mailbox send register test\n", 612 ha->host_no)); 613 qla_printk(KERN_WARNING, ha, 614 "Failed mailbox send register test\n"); 615 } 616 else { 617 /* Flag a successful rval */ 618 rval = QLA_SUCCESS; 619 } 620 spin_lock_irqsave(&ha->hardware_lock, flags); 621 622 chip_diag_failed: 623 if (rval) 624 DEBUG2_3(printk("scsi(%ld): Chip diagnostics **** FAILED " 625 "****\n", ha->host_no)); 626 627 spin_unlock_irqrestore(&ha->hardware_lock, flags); 628 629 return (rval); 630 } 631 632 /** 633 * qla2x00_resize_request_q() - Resize request queue given available ISP memory. 634 * @ha: HA context 635 * 636 * Returns 0 on success. 637 */ 638 static void 639 qla2x00_resize_request_q(scsi_qla_host_t *ha) 640 { 641 int rval; 642 uint16_t fw_iocb_cnt = 0; 643 uint16_t request_q_length = REQUEST_ENTRY_CNT_2XXX_EXT_MEM; 644 dma_addr_t request_dma; 645 request_t *request_ring; 646 647 /* Valid only on recent ISPs. */ 648 if (IS_QLA2100(ha) || IS_QLA2200(ha)) 649 return; 650 651 /* Retrieve IOCB counts available to the firmware. */ 652 rval = qla2x00_get_resource_cnts(ha, NULL, NULL, NULL, &fw_iocb_cnt); 653 if (rval) 654 return; 655 /* No point in continuing if current settings are sufficient. */ 656 if (fw_iocb_cnt < 1024) 657 return; 658 if (ha->request_q_length >= request_q_length) 659 return; 660 661 /* Attempt to claim larger area for request queue. */ 662 request_ring = dma_alloc_coherent(&ha->pdev->dev, 663 (request_q_length + 1) * sizeof(request_t), &request_dma, 664 GFP_KERNEL); 665 if (request_ring == NULL) 666 return; 667 668 /* Resize successful, report extensions. */ 669 qla_printk(KERN_INFO, ha, "Extended memory detected (%d KB)...\n", 670 (ha->fw_memory_size + 1) / 1024); 671 qla_printk(KERN_INFO, ha, "Resizing request queue depth " 672 "(%d -> %d)...\n", ha->request_q_length, request_q_length); 673 674 /* Clear old allocations. */ 675 dma_free_coherent(&ha->pdev->dev, 676 (ha->request_q_length + 1) * sizeof(request_t), ha->request_ring, 677 ha->request_dma); 678 679 /* Begin using larger queue. */ 680 ha->request_q_length = request_q_length; 681 ha->request_ring = request_ring; 682 ha->request_dma = request_dma; 683 } 684 685 /** 686 * qla2x00_setup_chip() - Load and start RISC firmware. 687 * @ha: HA context 688 * 689 * Returns 0 on success. 690 */ 691 static int 692 qla2x00_setup_chip(scsi_qla_host_t *ha) 693 { 694 int rval; 695 uint16_t cnt; 696 uint16_t *risc_code; 697 unsigned long risc_address; 698 unsigned long risc_code_size; 699 int num; 700 int i; 701 uint16_t *req_ring; 702 struct qla_fw_info *fw_iter; 703 704 rval = QLA_SUCCESS; 705 706 /* Load firmware sequences */ 707 fw_iter = ha->brd_info->fw_info; 708 while (fw_iter->addressing != FW_INFO_ADDR_NOMORE) { 709 risc_code = fw_iter->fwcode; 710 risc_code_size = *fw_iter->fwlen; 711 712 if (fw_iter->addressing == FW_INFO_ADDR_NORMAL) { 713 risc_address = *fw_iter->fwstart; 714 } else { 715 /* Extended address */ 716 risc_address = *fw_iter->lfwstart; 717 } 718 719 num = 0; 720 rval = 0; 721 while (risc_code_size > 0 && !rval) { 722 cnt = (uint16_t)(ha->fw_transfer_size >> 1); 723 if (cnt > risc_code_size) 724 cnt = risc_code_size; 725 726 DEBUG7(printk("scsi(%ld): Loading risc segment@ " 727 "addr %p, number of bytes 0x%x, offset 0x%lx.\n", 728 ha->host_no, risc_code, cnt, risc_address)); 729 730 req_ring = (uint16_t *)ha->request_ring; 731 for (i = 0; i < cnt; i++) 732 req_ring[i] = cpu_to_le16(risc_code[i]); 733 734 if (fw_iter->addressing == FW_INFO_ADDR_NORMAL) { 735 rval = qla2x00_load_ram(ha, 736 ha->request_dma, risc_address, cnt); 737 } else { 738 rval = qla2x00_load_ram_ext(ha, 739 ha->request_dma, risc_address, cnt); 740 } 741 if (rval) { 742 DEBUG(printk("scsi(%ld): [ERROR] Failed to " 743 "load segment %d of firmware\n", 744 ha->host_no, num)); 745 qla_printk(KERN_WARNING, ha, 746 "[ERROR] Failed to load " 747 "segment %d of firmware\n", num); 748 749 qla2x00_dump_regs(ha); 750 break; 751 } 752 753 risc_code += cnt; 754 risc_address += cnt; 755 risc_code_size -= cnt; 756 num++; 757 } 758 759 /* Next firmware sequence */ 760 fw_iter++; 761 } 762 763 /* Verify checksum of loaded RISC code. */ 764 if (!rval) { 765 DEBUG(printk("scsi(%ld): Verifying Checksum of loaded RISC " 766 "code.\n", ha->host_no)); 767 768 rval = qla2x00_verify_checksum(ha); 769 if (rval == QLA_SUCCESS) { 770 /* Start firmware execution. */ 771 DEBUG(printk("scsi(%ld): Checksum OK, start " 772 "firmware.\n", ha->host_no)); 773 774 rval = qla2x00_execute_fw(ha); 775 /* Retrieve firmware information. */ 776 if (rval == QLA_SUCCESS && ha->fw_major_version == 0) { 777 qla2x00_get_fw_version(ha, 778 &ha->fw_major_version, 779 &ha->fw_minor_version, 780 &ha->fw_subminor_version, 781 &ha->fw_attributes, &ha->fw_memory_size); 782 qla2x00_resize_request_q(ha); 783 } 784 } else { 785 DEBUG2(printk(KERN_INFO 786 "scsi(%ld): ISP Firmware failed checksum.\n", 787 ha->host_no)); 788 } 789 } 790 791 if (rval) { 792 DEBUG2_3(printk("scsi(%ld): Setup chip **** FAILED ****.\n", 793 ha->host_no)); 794 } 795 796 return (rval); 797 } 798 799 /** 800 * qla2x00_init_response_q_entries() - Initializes response queue entries. 801 * @ha: HA context 802 * 803 * Beginning of request ring has initialization control block already built 804 * by nvram config routine. 805 * 806 * Returns 0 on success. 807 */ 808 static void 809 qla2x00_init_response_q_entries(scsi_qla_host_t *ha) 810 { 811 uint16_t cnt; 812 response_t *pkt; 813 814 pkt = ha->response_ring_ptr; 815 for (cnt = 0; cnt < ha->response_q_length; cnt++) { 816 pkt->signature = RESPONSE_PROCESSED; 817 pkt++; 818 } 819 820 } 821 822 /** 823 * qla2x00_update_fw_options() - Read and process firmware options. 824 * @ha: HA context 825 * 826 * Returns 0 on success. 827 */ 828 static void 829 qla2x00_update_fw_options(scsi_qla_host_t *ha) 830 { 831 uint16_t swing, emphasis, tx_sens, rx_sens; 832 833 memset(ha->fw_options, 0, sizeof(ha->fw_options)); 834 qla2x00_get_fw_options(ha, ha->fw_options); 835 836 if (IS_QLA2100(ha) || IS_QLA2200(ha)) 837 return; 838 839 /* Serial Link options. */ 840 DEBUG3(printk("scsi(%ld): Serial link options:\n", 841 ha->host_no)); 842 DEBUG3(qla2x00_dump_buffer((uint8_t *)&ha->fw_seriallink_options, 843 sizeof(ha->fw_seriallink_options))); 844 845 ha->fw_options[1] &= ~FO1_SET_EMPHASIS_SWING; 846 if (ha->fw_seriallink_options[3] & BIT_2) { 847 ha->fw_options[1] |= FO1_SET_EMPHASIS_SWING; 848 849 /* 1G settings */ 850 swing = ha->fw_seriallink_options[2] & (BIT_2 | BIT_1 | BIT_0); 851 emphasis = (ha->fw_seriallink_options[2] & 852 (BIT_4 | BIT_3)) >> 3; 853 tx_sens = ha->fw_seriallink_options[0] & 854 (BIT_3 | BIT_2 | BIT_1 | BIT_0); 855 rx_sens = (ha->fw_seriallink_options[0] & 856 (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4; 857 ha->fw_options[10] = (emphasis << 14) | (swing << 8); 858 if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) { 859 if (rx_sens == 0x0) 860 rx_sens = 0x3; 861 ha->fw_options[10] |= (tx_sens << 4) | rx_sens; 862 } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) 863 ha->fw_options[10] |= BIT_5 | 864 ((rx_sens & (BIT_1 | BIT_0)) << 2) | 865 (tx_sens & (BIT_1 | BIT_0)); 866 867 /* 2G settings */ 868 swing = (ha->fw_seriallink_options[2] & 869 (BIT_7 | BIT_6 | BIT_5)) >> 5; 870 emphasis = ha->fw_seriallink_options[3] & (BIT_1 | BIT_0); 871 tx_sens = ha->fw_seriallink_options[1] & 872 (BIT_3 | BIT_2 | BIT_1 | BIT_0); 873 rx_sens = (ha->fw_seriallink_options[1] & 874 (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4; 875 ha->fw_options[11] = (emphasis << 14) | (swing << 8); 876 if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) { 877 if (rx_sens == 0x0) 878 rx_sens = 0x3; 879 ha->fw_options[11] |= (tx_sens << 4) | rx_sens; 880 } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) 881 ha->fw_options[11] |= BIT_5 | 882 ((rx_sens & (BIT_1 | BIT_0)) << 2) | 883 (tx_sens & (BIT_1 | BIT_0)); 884 } 885 886 /* FCP2 options. */ 887 /* Return command IOCBs without waiting for an ABTS to complete. */ 888 ha->fw_options[3] |= BIT_13; 889 890 /* LED scheme. */ 891 if (ha->flags.enable_led_scheme) 892 ha->fw_options[2] |= BIT_12; 893 894 /* Update firmware options. */ 895 qla2x00_set_fw_options(ha, ha->fw_options); 896 } 897 898 /** 899 * qla2x00_init_rings() - Initializes firmware. 900 * @ha: HA context 901 * 902 * Beginning of request ring has initialization control block already built 903 * by nvram config routine. 904 * 905 * Returns 0 on success. 906 */ 907 static int 908 qla2x00_init_rings(scsi_qla_host_t *ha) 909 { 910 int rval; 911 unsigned long flags = 0; 912 int cnt; 913 device_reg_t __iomem *reg = ha->iobase; 914 915 spin_lock_irqsave(&ha->hardware_lock, flags); 916 917 /* Clear outstanding commands array. */ 918 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) 919 ha->outstanding_cmds[cnt] = NULL; 920 921 ha->current_outstanding_cmd = 0; 922 923 /* Clear RSCN queue. */ 924 ha->rscn_in_ptr = 0; 925 ha->rscn_out_ptr = 0; 926 927 /* Initialize firmware. */ 928 ha->request_ring_ptr = ha->request_ring; 929 ha->req_ring_index = 0; 930 ha->req_q_cnt = ha->request_q_length; 931 ha->response_ring_ptr = ha->response_ring; 932 ha->rsp_ring_index = 0; 933 934 /* Setup ring parameters in initialization control block. */ 935 ha->init_cb->request_q_outpointer = __constant_cpu_to_le16(0); 936 ha->init_cb->response_q_inpointer = __constant_cpu_to_le16(0); 937 ha->init_cb->request_q_length = cpu_to_le16(ha->request_q_length); 938 ha->init_cb->response_q_length = cpu_to_le16(ha->response_q_length); 939 ha->init_cb->request_q_address[0] = cpu_to_le32(LSD(ha->request_dma)); 940 ha->init_cb->request_q_address[1] = cpu_to_le32(MSD(ha->request_dma)); 941 ha->init_cb->response_q_address[0] = cpu_to_le32(LSD(ha->response_dma)); 942 ha->init_cb->response_q_address[1] = cpu_to_le32(MSD(ha->response_dma)); 943 944 /* Initialize response queue entries */ 945 qla2x00_init_response_q_entries(ha); 946 947 WRT_REG_WORD(ISP_REQ_Q_IN(ha, reg), 0); 948 WRT_REG_WORD(ISP_REQ_Q_OUT(ha, reg), 0); 949 WRT_REG_WORD(ISP_RSP_Q_IN(ha, reg), 0); 950 WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), 0); 951 RD_REG_WORD(ISP_RSP_Q_OUT(ha, reg)); /* PCI Posting. */ 952 953 spin_unlock_irqrestore(&ha->hardware_lock, flags); 954 955 /* Update any ISP specific firmware options before initialization. */ 956 qla2x00_update_fw_options(ha); 957 958 DEBUG(printk("scsi(%ld): Issue init firmware.\n", ha->host_no)); 959 rval = qla2x00_init_firmware(ha, sizeof(init_cb_t)); 960 if (rval) { 961 DEBUG2_3(printk("scsi(%ld): Init firmware **** FAILED ****.\n", 962 ha->host_no)); 963 } else { 964 DEBUG3(printk("scsi(%ld): Init firmware -- success.\n", 965 ha->host_no)); 966 } 967 968 return (rval); 969 } 970 971 /** 972 * qla2x00_fw_ready() - Waits for firmware ready. 973 * @ha: HA context 974 * 975 * Returns 0 on success. 976 */ 977 static int 978 qla2x00_fw_ready(scsi_qla_host_t *ha) 979 { 980 int rval; 981 unsigned long wtime, mtime; 982 uint16_t min_wait; /* Minimum wait time if loop is down */ 983 uint16_t wait_time; /* Wait time if loop is coming ready */ 984 uint16_t fw_state; 985 986 rval = QLA_SUCCESS; 987 988 /* 20 seconds for loop down. */ 989 min_wait = 20; 990 991 /* 992 * Firmware should take at most one RATOV to login, plus 5 seconds for 993 * our own processing. 994 */ 995 if ((wait_time = (ha->retry_count*ha->login_timeout) + 5) < min_wait) { 996 wait_time = min_wait; 997 } 998 999 /* Min wait time if loop down */ 1000 mtime = jiffies + (min_wait * HZ); 1001 1002 /* wait time before firmware ready */ 1003 wtime = jiffies + (wait_time * HZ); 1004 1005 /* Wait for ISP to finish LIP */ 1006 if (!ha->flags.init_done) 1007 qla_printk(KERN_INFO, ha, "Waiting for LIP to complete...\n"); 1008 1009 DEBUG3(printk("scsi(%ld): Waiting for LIP to complete...\n", 1010 ha->host_no)); 1011 1012 do { 1013 rval = qla2x00_get_firmware_state(ha, &fw_state); 1014 if (rval == QLA_SUCCESS) { 1015 if (fw_state < FSTATE_LOSS_OF_SYNC) { 1016 ha->device_flags &= ~DFLG_NO_CABLE; 1017 } 1018 if (fw_state == FSTATE_READY) { 1019 DEBUG(printk("scsi(%ld): F/W Ready - OK \n", 1020 ha->host_no)); 1021 1022 qla2x00_get_retry_cnt(ha, &ha->retry_count, 1023 &ha->login_timeout, &ha->r_a_tov); 1024 1025 rval = QLA_SUCCESS; 1026 break; 1027 } 1028 1029 rval = QLA_FUNCTION_FAILED; 1030 1031 if (atomic_read(&ha->loop_down_timer) && 1032 (fw_state >= FSTATE_LOSS_OF_SYNC || 1033 fw_state == FSTATE_WAIT_AL_PA)) { 1034 /* Loop down. Timeout on min_wait for states 1035 * other than Wait for Login. 1036 */ 1037 if (time_after_eq(jiffies, mtime)) { 1038 qla_printk(KERN_INFO, ha, 1039 "Cable is unplugged...\n"); 1040 1041 ha->device_flags |= DFLG_NO_CABLE; 1042 break; 1043 } 1044 } 1045 } else { 1046 /* Mailbox cmd failed. Timeout on min_wait. */ 1047 if (time_after_eq(jiffies, mtime)) 1048 break; 1049 } 1050 1051 if (time_after_eq(jiffies, wtime)) 1052 break; 1053 1054 /* Delay for a while */ 1055 msleep(500); 1056 1057 DEBUG3(printk("scsi(%ld): fw_state=%x curr time=%lx.\n", 1058 ha->host_no, fw_state, jiffies)); 1059 } while (1); 1060 1061 DEBUG(printk("scsi(%ld): fw_state=%x curr time=%lx.\n", 1062 ha->host_no, fw_state, jiffies)); 1063 1064 if (rval) { 1065 DEBUG2_3(printk("scsi(%ld): Firmware ready **** FAILED ****.\n", 1066 ha->host_no)); 1067 } 1068 1069 return (rval); 1070 } 1071 1072 /* 1073 * qla2x00_configure_hba 1074 * Setup adapter context. 1075 * 1076 * Input: 1077 * ha = adapter state pointer. 1078 * 1079 * Returns: 1080 * 0 = success 1081 * 1082 * Context: 1083 * Kernel context. 1084 */ 1085 static int 1086 qla2x00_configure_hba(scsi_qla_host_t *ha) 1087 { 1088 int rval; 1089 uint16_t loop_id; 1090 uint16_t topo; 1091 uint8_t al_pa; 1092 uint8_t area; 1093 uint8_t domain; 1094 char connect_type[22]; 1095 1096 /* Get host addresses. */ 1097 rval = qla2x00_get_adapter_id(ha, 1098 &loop_id, &al_pa, &area, &domain, &topo); 1099 if (rval != QLA_SUCCESS) { 1100 qla_printk(KERN_WARNING, ha, 1101 "ERROR -- Unable to get host loop ID.\n"); 1102 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); 1103 return (rval); 1104 } 1105 1106 if (topo == 4) { 1107 qla_printk(KERN_INFO, ha, 1108 "Cannot get topology - retrying.\n"); 1109 return (QLA_FUNCTION_FAILED); 1110 } 1111 1112 ha->loop_id = loop_id; 1113 1114 /* initialize */ 1115 ha->min_external_loopid = SNS_FIRST_LOOP_ID; 1116 ha->operating_mode = LOOP; 1117 1118 switch (topo) { 1119 case 0: 1120 DEBUG3(printk("scsi(%ld): HBA in NL topology.\n", 1121 ha->host_no)); 1122 ha->current_topology = ISP_CFG_NL; 1123 strcpy(connect_type, "(Loop)"); 1124 break; 1125 1126 case 1: 1127 DEBUG3(printk("scsi(%ld): HBA in FL topology.\n", 1128 ha->host_no)); 1129 ha->current_topology = ISP_CFG_FL; 1130 strcpy(connect_type, "(FL_Port)"); 1131 break; 1132 1133 case 2: 1134 DEBUG3(printk("scsi(%ld): HBA in N P2P topology.\n", 1135 ha->host_no)); 1136 ha->operating_mode = P2P; 1137 ha->current_topology = ISP_CFG_N; 1138 strcpy(connect_type, "(N_Port-to-N_Port)"); 1139 break; 1140 1141 case 3: 1142 DEBUG3(printk("scsi(%ld): HBA in F P2P topology.\n", 1143 ha->host_no)); 1144 ha->operating_mode = P2P; 1145 ha->current_topology = ISP_CFG_F; 1146 strcpy(connect_type, "(F_Port)"); 1147 break; 1148 1149 default: 1150 DEBUG3(printk("scsi(%ld): HBA in unknown topology %x. " 1151 "Using NL.\n", 1152 ha->host_no, topo)); 1153 ha->current_topology = ISP_CFG_NL; 1154 strcpy(connect_type, "(Loop)"); 1155 break; 1156 } 1157 1158 /* Save Host port and loop ID. */ 1159 /* byte order - Big Endian */ 1160 ha->d_id.b.domain = domain; 1161 ha->d_id.b.area = area; 1162 ha->d_id.b.al_pa = al_pa; 1163 1164 if (!ha->flags.init_done) 1165 qla_printk(KERN_INFO, ha, 1166 "Topology - %s, Host Loop address 0x%x\n", 1167 connect_type, ha->loop_id); 1168 1169 if (rval) { 1170 DEBUG2_3(printk("scsi(%ld): FAILED.\n", ha->host_no)); 1171 } else { 1172 DEBUG3(printk("scsi(%ld): exiting normally.\n", ha->host_no)); 1173 } 1174 1175 return(rval); 1176 } 1177 1178 /* 1179 * NVRAM configuration for ISP 2xxx 1180 * 1181 * Input: 1182 * ha = adapter block pointer. 1183 * 1184 * Output: 1185 * initialization control block in response_ring 1186 * host adapters parameters in host adapter block 1187 * 1188 * Returns: 1189 * 0 = success. 1190 */ 1191 static int 1192 qla2x00_nvram_config(scsi_qla_host_t *ha) 1193 { 1194 int rval; 1195 uint8_t chksum = 0; 1196 uint16_t cnt; 1197 uint8_t *dptr1, *dptr2; 1198 init_cb_t *icb = ha->init_cb; 1199 nvram_t *nv = (nvram_t *)ha->request_ring; 1200 uint16_t *wptr = (uint16_t *)ha->request_ring; 1201 device_reg_t __iomem *reg = ha->iobase; 1202 uint8_t timer_mode; 1203 1204 rval = QLA_SUCCESS; 1205 1206 /* Determine NVRAM starting address. */ 1207 ha->nvram_base = 0; 1208 if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA2300(ha)) 1209 if ((RD_REG_WORD(®->ctrl_status) >> 14) == 1) 1210 ha->nvram_base = 0x80; 1211 1212 /* Get NVRAM data and calculate checksum. */ 1213 qla2x00_lock_nvram_access(ha); 1214 for (cnt = 0; cnt < sizeof(nvram_t)/2; cnt++) { 1215 *wptr = cpu_to_le16(qla2x00_get_nvram_word(ha, 1216 (cnt+ha->nvram_base))); 1217 chksum += (uint8_t)*wptr; 1218 chksum += (uint8_t)(*wptr >> 8); 1219 wptr++; 1220 } 1221 qla2x00_unlock_nvram_access(ha); 1222 1223 DEBUG5(printk("scsi(%ld): Contents of NVRAM\n", ha->host_no)); 1224 DEBUG5(qla2x00_dump_buffer((uint8_t *)ha->request_ring, 1225 sizeof(nvram_t))); 1226 1227 /* Bad NVRAM data, set defaults parameters. */ 1228 if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' || 1229 nv->id[2] != 'P' || nv->id[3] != ' ' || nv->nvram_version < 1) { 1230 /* Reset NVRAM data. */ 1231 qla_printk(KERN_WARNING, ha, "Inconsistent NVRAM detected: " 1232 "checksum=0x%x id=%c version=0x%x.\n", chksum, nv->id[0], 1233 nv->nvram_version); 1234 qla_printk(KERN_WARNING, ha, "Falling back to functioning (yet " 1235 "invalid -- WWPN) defaults.\n"); 1236 1237 /* 1238 * Set default initialization control block. 1239 */ 1240 memset(nv, 0, sizeof(nvram_t)); 1241 nv->parameter_block_version = ICB_VERSION; 1242 1243 if (IS_QLA23XX(ha)) { 1244 nv->firmware_options[0] = BIT_2 | BIT_1; 1245 nv->firmware_options[1] = BIT_7 | BIT_5; 1246 nv->add_firmware_options[0] = BIT_5; 1247 nv->add_firmware_options[1] = BIT_5 | BIT_4; 1248 nv->frame_payload_size = __constant_cpu_to_le16(2048); 1249 nv->special_options[1] = BIT_7; 1250 } else if (IS_QLA2200(ha)) { 1251 nv->firmware_options[0] = BIT_2 | BIT_1; 1252 nv->firmware_options[1] = BIT_7 | BIT_5; 1253 nv->add_firmware_options[0] = BIT_5; 1254 nv->add_firmware_options[1] = BIT_5 | BIT_4; 1255 nv->frame_payload_size = __constant_cpu_to_le16(1024); 1256 } else if (IS_QLA2100(ha)) { 1257 nv->firmware_options[0] = BIT_3 | BIT_1; 1258 nv->firmware_options[1] = BIT_5; 1259 nv->frame_payload_size = __constant_cpu_to_le16(1024); 1260 } 1261 1262 nv->max_iocb_allocation = __constant_cpu_to_le16(256); 1263 nv->execution_throttle = __constant_cpu_to_le16(16); 1264 nv->retry_count = 8; 1265 nv->retry_delay = 1; 1266 1267 nv->port_name[0] = 33; 1268 nv->port_name[3] = 224; 1269 nv->port_name[4] = 139; 1270 1271 nv->login_timeout = 4; 1272 1273 /* 1274 * Set default host adapter parameters 1275 */ 1276 nv->host_p[1] = BIT_2; 1277 nv->reset_delay = 5; 1278 nv->port_down_retry_count = 8; 1279 nv->max_luns_per_target = __constant_cpu_to_le16(8); 1280 nv->link_down_timeout = 60; 1281 1282 rval = 1; 1283 } 1284 1285 #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2) 1286 /* 1287 * The SN2 does not provide BIOS emulation which means you can't change 1288 * potentially bogus BIOS settings. Force the use of default settings 1289 * for link rate and frame size. Hope that the rest of the settings 1290 * are valid. 1291 */ 1292 if (ia64_platform_is("sn2")) { 1293 nv->frame_payload_size = __constant_cpu_to_le16(2048); 1294 if (IS_QLA23XX(ha)) 1295 nv->special_options[1] = BIT_7; 1296 } 1297 #endif 1298 1299 /* Reset Initialization control block */ 1300 memset(icb, 0, sizeof(init_cb_t)); 1301 1302 /* 1303 * Setup driver NVRAM options. 1304 */ 1305 nv->firmware_options[0] |= (BIT_6 | BIT_1); 1306 nv->firmware_options[0] &= ~(BIT_5 | BIT_4); 1307 nv->firmware_options[1] |= (BIT_5 | BIT_0); 1308 nv->firmware_options[1] &= ~BIT_4; 1309 1310 if (IS_QLA23XX(ha)) { 1311 nv->firmware_options[0] |= BIT_2; 1312 nv->firmware_options[0] &= ~BIT_3; 1313 1314 if (IS_QLA2300(ha)) { 1315 if (ha->fb_rev == FPM_2310) { 1316 strcpy(ha->model_number, "QLA2310"); 1317 } else { 1318 strcpy(ha->model_number, "QLA2300"); 1319 } 1320 } else { 1321 if (rval == 0 && 1322 memcmp(nv->model_number, BINZERO, 1323 sizeof(nv->model_number)) != 0) { 1324 char *st, *en; 1325 1326 strncpy(ha->model_number, nv->model_number, 1327 sizeof(nv->model_number)); 1328 st = en = ha->model_number; 1329 en += sizeof(nv->model_number) - 1; 1330 while (en > st) { 1331 if (*en != 0x20 && *en != 0x00) 1332 break; 1333 *en-- = '\0'; 1334 } 1335 } else { 1336 uint16_t index; 1337 1338 index = (ha->pdev->subsystem_device & 0xff); 1339 if (index < QLA_MODEL_NAMES) { 1340 strcpy(ha->model_number, 1341 qla2x00_model_name[index]); 1342 ha->model_desc = 1343 qla2x00_model_desc[index]; 1344 } else { 1345 strcpy(ha->model_number, "QLA23xx"); 1346 } 1347 } 1348 } 1349 } else if (IS_QLA2200(ha)) { 1350 nv->firmware_options[0] |= BIT_2; 1351 /* 1352 * 'Point-to-point preferred, else loop' is not a safe 1353 * connection mode setting. 1354 */ 1355 if ((nv->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) == 1356 (BIT_5 | BIT_4)) { 1357 /* Force 'loop preferred, else point-to-point'. */ 1358 nv->add_firmware_options[0] &= ~(BIT_6 | BIT_5 | BIT_4); 1359 nv->add_firmware_options[0] |= BIT_5; 1360 } 1361 strcpy(ha->model_number, "QLA22xx"); 1362 } else /*if (IS_QLA2100(ha))*/ { 1363 strcpy(ha->model_number, "QLA2100"); 1364 } 1365 1366 /* 1367 * Copy over NVRAM RISC parameter block to initialization control block. 1368 */ 1369 dptr1 = (uint8_t *)icb; 1370 dptr2 = (uint8_t *)&nv->parameter_block_version; 1371 cnt = (uint8_t *)&icb->request_q_outpointer - (uint8_t *)&icb->version; 1372 while (cnt--) 1373 *dptr1++ = *dptr2++; 1374 1375 /* Copy 2nd half. */ 1376 dptr1 = (uint8_t *)icb->add_firmware_options; 1377 cnt = (uint8_t *)icb->reserved_3 - (uint8_t *)icb->add_firmware_options; 1378 while (cnt--) 1379 *dptr1++ = *dptr2++; 1380 1381 /* Prepare nodename */ 1382 if ((icb->firmware_options[1] & BIT_6) == 0) { 1383 /* 1384 * Firmware will apply the following mask if the nodename was 1385 * not provided. 1386 */ 1387 memcpy(icb->node_name, icb->port_name, WWN_SIZE); 1388 icb->node_name[0] &= 0xF0; 1389 } 1390 1391 /* 1392 * Set host adapter parameters. 1393 */ 1394 ha->nvram_version = nv->nvram_version; 1395 1396 ha->flags.disable_risc_code_load = ((nv->host_p[0] & BIT_4) ? 1 : 0); 1397 /* Always load RISC code on non ISP2[12]00 chips. */ 1398 if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) 1399 ha->flags.disable_risc_code_load = 0; 1400 ha->flags.enable_lip_reset = ((nv->host_p[1] & BIT_1) ? 1 : 0); 1401 ha->flags.enable_lip_full_login = ((nv->host_p[1] & BIT_2) ? 1 : 0); 1402 ha->flags.enable_target_reset = ((nv->host_p[1] & BIT_3) ? 1 : 0); 1403 ha->flags.enable_led_scheme = ((nv->efi_parameters & BIT_3) ? 1 : 0); 1404 1405 ha->operating_mode = 1406 (icb->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) >> 4; 1407 1408 memcpy(ha->fw_seriallink_options, nv->seriallink_options, 1409 sizeof(ha->fw_seriallink_options)); 1410 1411 /* save HBA serial number */ 1412 ha->serial0 = icb->port_name[5]; 1413 ha->serial1 = icb->port_name[6]; 1414 ha->serial2 = icb->port_name[7]; 1415 memcpy(ha->node_name, icb->node_name, WWN_SIZE); 1416 1417 icb->execution_throttle = __constant_cpu_to_le16(0xFFFF); 1418 1419 ha->retry_count = nv->retry_count; 1420 1421 /* Set minimum login_timeout to 4 seconds. */ 1422 if (nv->login_timeout < ql2xlogintimeout) 1423 nv->login_timeout = ql2xlogintimeout; 1424 if (nv->login_timeout < 4) 1425 nv->login_timeout = 4; 1426 ha->login_timeout = nv->login_timeout; 1427 icb->login_timeout = nv->login_timeout; 1428 1429 /* Set minimum RATOV to 200 tenths of a second. */ 1430 ha->r_a_tov = 200; 1431 1432 ha->minimum_timeout = 1433 (ha->login_timeout * ha->retry_count) + nv->port_down_retry_count; 1434 ha->loop_reset_delay = nv->reset_delay; 1435 1436 /* Will get the value from NVRAM. */ 1437 ha->loop_down_timeout = LOOP_DOWN_TIMEOUT; 1438 1439 /* Link Down Timeout = 0: 1440 * 1441 * When Port Down timer expires we will start returning 1442 * I/O's to OS with "DID_NO_CONNECT". 1443 * 1444 * Link Down Timeout != 0: 1445 * 1446 * The driver waits for the link to come up after link down 1447 * before returning I/Os to OS with "DID_NO_CONNECT". 1448 */ 1449 if (nv->link_down_timeout == 0) { 1450 ha->loop_down_abort_time = 1451 (LOOP_DOWN_TIME - ha->loop_down_timeout); 1452 } else { 1453 ha->link_down_timeout = nv->link_down_timeout; 1454 ha->loop_down_abort_time = 1455 (LOOP_DOWN_TIME - ha->link_down_timeout); 1456 } 1457 1458 ha->max_luns = MAX_LUNS; 1459 ha->max_probe_luns = le16_to_cpu(nv->max_luns_per_target); 1460 if (ha->max_probe_luns == 0) 1461 ha->max_probe_luns = MIN_LUNS; 1462 1463 /* 1464 * Need enough time to try and get the port back. 1465 */ 1466 ha->port_down_retry_count = nv->port_down_retry_count; 1467 if (qlport_down_retry) 1468 ha->port_down_retry_count = qlport_down_retry; 1469 /* Set login_retry_count */ 1470 ha->login_retry_count = nv->retry_count; 1471 if (ha->port_down_retry_count == nv->port_down_retry_count && 1472 ha->port_down_retry_count > 3) 1473 ha->login_retry_count = ha->port_down_retry_count; 1474 else if (ha->port_down_retry_count > (int)ha->login_retry_count) 1475 ha->login_retry_count = ha->port_down_retry_count; 1476 if (ql2xloginretrycount) 1477 ha->login_retry_count = ql2xloginretrycount; 1478 1479 ha->binding_type = Bind; 1480 if (ha->binding_type != BIND_BY_PORT_NAME && 1481 ha->binding_type != BIND_BY_PORT_ID) { 1482 qla_printk(KERN_WARNING, ha, 1483 "Invalid binding type specified (%d), " 1484 "defaulting to BIND_BY_PORT_NAME!!!\n", ha->binding_type); 1485 1486 ha->binding_type = BIND_BY_PORT_NAME; 1487 } 1488 1489 icb->lun_enables = __constant_cpu_to_le16(0); 1490 icb->command_resource_count = 0; 1491 icb->immediate_notify_resource_count = 0; 1492 icb->timeout = __constant_cpu_to_le16(0); 1493 1494 if (IS_QLA2100(ha) || IS_QLA2200(ha)) { 1495 /* Enable RIO */ 1496 icb->firmware_options[0] &= ~BIT_3; 1497 icb->add_firmware_options[0] &= 1498 ~(BIT_3 | BIT_2 | BIT_1 | BIT_0); 1499 icb->add_firmware_options[0] |= BIT_2; 1500 icb->response_accumulation_timer = 3; 1501 icb->interrupt_delay_timer = 5; 1502 1503 ha->flags.process_response_queue = 1; 1504 } else { 1505 /* Enable ZIO -- Support mode 5 only. */ 1506 timer_mode = icb->add_firmware_options[0] & 1507 (BIT_3 | BIT_2 | BIT_1 | BIT_0); 1508 icb->add_firmware_options[0] &= 1509 ~(BIT_3 | BIT_2 | BIT_1 | BIT_0); 1510 if (ql2xenablezio) 1511 timer_mode = BIT_2 | BIT_0; 1512 if (timer_mode == (BIT_2 | BIT_0)) { 1513 DEBUG2(printk("scsi(%ld): ZIO enabled; timer delay " 1514 "(%d).\n", ha->host_no, ql2xintrdelaytimer)); 1515 qla_printk(KERN_INFO, ha, 1516 "ZIO enabled; timer delay (%d).\n", 1517 ql2xintrdelaytimer); 1518 1519 icb->add_firmware_options[0] |= timer_mode; 1520 icb->interrupt_delay_timer = ql2xintrdelaytimer; 1521 ha->flags.process_response_queue = 1; 1522 } 1523 } 1524 1525 if (rval) { 1526 DEBUG2_3(printk(KERN_WARNING 1527 "scsi(%ld): NVRAM configuration failed!\n", ha->host_no)); 1528 } 1529 return (rval); 1530 } 1531 1532 /* 1533 * qla2x00_init_tgt_map 1534 * Initializes target map. 1535 * 1536 * Input: 1537 * ha = adapter block pointer. 1538 * 1539 * Output: 1540 * TGT_Q initialized 1541 */ 1542 static void 1543 qla2x00_init_tgt_map(scsi_qla_host_t *ha) 1544 { 1545 uint32_t t; 1546 1547 for (t = 0; t < MAX_TARGETS; t++) 1548 TGT_Q(ha, t) = (os_tgt_t *)NULL; 1549 } 1550 1551 /** 1552 * qla2x00_alloc_fcport() - Allocate a generic fcport. 1553 * @ha: HA context 1554 * @flags: allocation flags 1555 * 1556 * Returns a pointer to the allocated fcport, or NULL, if none available. 1557 */ 1558 fc_port_t * 1559 qla2x00_alloc_fcport(scsi_qla_host_t *ha, int flags) 1560 { 1561 fc_port_t *fcport; 1562 1563 fcport = kmalloc(sizeof(fc_port_t), flags); 1564 if (fcport == NULL) 1565 return (fcport); 1566 1567 /* Setup fcport template structure. */ 1568 memset(fcport, 0, sizeof (fc_port_t)); 1569 fcport->ha = ha; 1570 fcport->port_type = FCT_UNKNOWN; 1571 fcport->loop_id = FC_NO_LOOP_ID; 1572 fcport->iodesc_idx_sent = IODESC_INVALID_INDEX; 1573 atomic_set(&fcport->state, FCS_UNCONFIGURED); 1574 fcport->flags = FCF_RLC_SUPPORT; 1575 INIT_LIST_HEAD(&fcport->fcluns); 1576 1577 return (fcport); 1578 } 1579 1580 /* 1581 * qla2x00_configure_loop 1582 * Updates Fibre Channel Device Database with what is actually on loop. 1583 * 1584 * Input: 1585 * ha = adapter block pointer. 1586 * 1587 * Returns: 1588 * 0 = success. 1589 * 1 = error. 1590 * 2 = database was full and device was not configured. 1591 */ 1592 static int 1593 qla2x00_configure_loop(scsi_qla_host_t *ha) 1594 { 1595 int rval; 1596 unsigned long flags, save_flags; 1597 1598 rval = QLA_SUCCESS; 1599 1600 /* Get Initiator ID */ 1601 if (test_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags)) { 1602 rval = qla2x00_configure_hba(ha); 1603 if (rval != QLA_SUCCESS) { 1604 DEBUG(printk("scsi(%ld): Unable to configure HBA.\n", 1605 ha->host_no)); 1606 return (rval); 1607 } 1608 } 1609 1610 save_flags = flags = ha->dpc_flags; 1611 DEBUG(printk("scsi(%ld): Configure loop -- dpc flags =0x%lx\n", 1612 ha->host_no, flags)); 1613 1614 /* 1615 * If we have both an RSCN and PORT UPDATE pending then handle them 1616 * both at the same time. 1617 */ 1618 clear_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags); 1619 clear_bit(RSCN_UPDATE, &ha->dpc_flags); 1620 ha->mem_err = 0 ; 1621 1622 /* Determine what we need to do */ 1623 if (ha->current_topology == ISP_CFG_FL && 1624 (test_bit(LOCAL_LOOP_UPDATE, &flags))) { 1625 1626 ha->flags.rscn_queue_overflow = 1; 1627 set_bit(RSCN_UPDATE, &flags); 1628 1629 } else if (ha->current_topology == ISP_CFG_F && 1630 (test_bit(LOCAL_LOOP_UPDATE, &flags))) { 1631 1632 ha->flags.rscn_queue_overflow = 1; 1633 set_bit(RSCN_UPDATE, &flags); 1634 clear_bit(LOCAL_LOOP_UPDATE, &flags); 1635 1636 } else if (!ha->flags.online || 1637 (test_bit(ABORT_ISP_ACTIVE, &flags))) { 1638 1639 ha->flags.rscn_queue_overflow = 1; 1640 set_bit(RSCN_UPDATE, &flags); 1641 set_bit(LOCAL_LOOP_UPDATE, &flags); 1642 } 1643 1644 if (test_bit(LOCAL_LOOP_UPDATE, &flags)) { 1645 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) { 1646 rval = QLA_FUNCTION_FAILED; 1647 } else { 1648 rval = qla2x00_configure_local_loop(ha); 1649 } 1650 } 1651 1652 if (rval == QLA_SUCCESS && test_bit(RSCN_UPDATE, &flags)) { 1653 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) { 1654 rval = QLA_FUNCTION_FAILED; 1655 } else { 1656 rval = qla2x00_configure_fabric(ha); 1657 } 1658 } 1659 1660 if (rval == QLA_SUCCESS) { 1661 if (atomic_read(&ha->loop_down_timer) || 1662 test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) { 1663 rval = QLA_FUNCTION_FAILED; 1664 } else { 1665 qla2x00_config_os(ha); 1666 atomic_set(&ha->loop_state, LOOP_READY); 1667 1668 DEBUG(printk("scsi(%ld): LOOP READY\n", ha->host_no)); 1669 } 1670 } 1671 1672 if (rval) { 1673 DEBUG2_3(printk("%s(%ld): *** FAILED ***\n", 1674 __func__, ha->host_no)); 1675 } else { 1676 DEBUG3(printk("%s: exiting normally\n", __func__)); 1677 } 1678 1679 /* Restore state if a resync event occured during processing */ 1680 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) { 1681 if (test_bit(LOCAL_LOOP_UPDATE, &save_flags)) 1682 set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags); 1683 if (test_bit(RSCN_UPDATE, &save_flags)) 1684 set_bit(RSCN_UPDATE, &ha->dpc_flags); 1685 } 1686 1687 return (rval); 1688 } 1689 1690 1691 1692 /* 1693 * qla2x00_configure_local_loop 1694 * Updates Fibre Channel Device Database with local loop devices. 1695 * 1696 * Input: 1697 * ha = adapter block pointer. 1698 * 1699 * Returns: 1700 * 0 = success. 1701 */ 1702 static int 1703 qla2x00_configure_local_loop(scsi_qla_host_t *ha) 1704 { 1705 int rval, rval2; 1706 int found_devs; 1707 int found; 1708 fc_port_t *fcport, *new_fcport; 1709 1710 uint16_t index; 1711 uint16_t entries; 1712 char *id_iter; 1713 uint16_t loop_id; 1714 uint8_t domain, area, al_pa; 1715 1716 found_devs = 0; 1717 new_fcport = NULL; 1718 entries = MAX_FIBRE_DEVICES; 1719 1720 DEBUG3(printk("scsi(%ld): Getting FCAL position map\n", ha->host_no)); 1721 DEBUG3(qla2x00_get_fcal_position_map(ha, NULL)); 1722 1723 /* Get list of logged in devices. */ 1724 memset(ha->gid_list, 0, GID_LIST_SIZE); 1725 rval = qla2x00_get_id_list(ha, ha->gid_list, ha->gid_list_dma, 1726 &entries); 1727 if (rval != QLA_SUCCESS) 1728 goto cleanup_allocation; 1729 1730 DEBUG3(printk("scsi(%ld): Entries in ID list (%d)\n", 1731 ha->host_no, entries)); 1732 DEBUG3(qla2x00_dump_buffer((uint8_t *)ha->gid_list, 1733 entries * sizeof(struct gid_list_info))); 1734 1735 /* Allocate temporary fcport for any new fcports discovered. */ 1736 new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL); 1737 if (new_fcport == NULL) { 1738 rval = QLA_MEMORY_ALLOC_FAILED; 1739 goto cleanup_allocation; 1740 } 1741 new_fcport->flags &= ~FCF_FABRIC_DEVICE; 1742 1743 /* 1744 * Mark local devices that were present with FCF_DEVICE_LOST for now. 1745 */ 1746 list_for_each_entry(fcport, &ha->fcports, list) { 1747 if (atomic_read(&fcport->state) == FCS_ONLINE && 1748 fcport->port_type != FCT_BROADCAST && 1749 (fcport->flags & FCF_FABRIC_DEVICE) == 0) { 1750 1751 DEBUG(printk("scsi(%ld): Marking port lost, " 1752 "loop_id=0x%04x\n", 1753 ha->host_no, fcport->loop_id)); 1754 1755 atomic_set(&fcport->state, FCS_DEVICE_LOST); 1756 fcport->flags &= ~FCF_FARP_DONE; 1757 } 1758 } 1759 1760 /* Add devices to port list. */ 1761 id_iter = (char *)ha->gid_list; 1762 for (index = 0; index < entries; index++) { 1763 domain = ((struct gid_list_info *)id_iter)->domain; 1764 area = ((struct gid_list_info *)id_iter)->area; 1765 al_pa = ((struct gid_list_info *)id_iter)->al_pa; 1766 if (IS_QLA2100(ha) || IS_QLA2200(ha)) { 1767 loop_id = (uint16_t) 1768 ((struct gid_list_info *)id_iter)->loop_id_2100; 1769 id_iter += 4; 1770 } else { 1771 loop_id = le16_to_cpu( 1772 ((struct gid_list_info *)id_iter)->loop_id); 1773 id_iter += 6; 1774 } 1775 1776 /* Bypass reserved domain fields. */ 1777 if ((domain & 0xf0) == 0xf0) 1778 continue; 1779 1780 /* Bypass if not same domain and area of adapter. */ 1781 if (area != ha->d_id.b.area || domain != ha->d_id.b.domain) 1782 continue; 1783 1784 /* Bypass invalid local loop ID. */ 1785 if (loop_id > LAST_LOCAL_LOOP_ID) 1786 continue; 1787 1788 /* Fill in member data. */ 1789 new_fcport->d_id.b.domain = domain; 1790 new_fcport->d_id.b.area = area; 1791 new_fcport->d_id.b.al_pa = al_pa; 1792 new_fcport->loop_id = loop_id; 1793 rval2 = qla2x00_get_port_database(ha, new_fcport, 0); 1794 if (rval2 != QLA_SUCCESS) { 1795 DEBUG2(printk("scsi(%ld): Failed to retrieve fcport " 1796 "information -- get_port_database=%x, " 1797 "loop_id=0x%04x\n", 1798 ha->host_no, rval2, new_fcport->loop_id)); 1799 continue; 1800 } 1801 1802 /* Check for matching device in port list. */ 1803 found = 0; 1804 fcport = NULL; 1805 list_for_each_entry(fcport, &ha->fcports, list) { 1806 if (memcmp(new_fcport->port_name, fcport->port_name, 1807 WWN_SIZE)) 1808 continue; 1809 1810 fcport->flags &= ~(FCF_FABRIC_DEVICE | 1811 FCF_PERSISTENT_BOUND); 1812 fcport->loop_id = new_fcport->loop_id; 1813 fcport->port_type = new_fcport->port_type; 1814 fcport->d_id.b24 = new_fcport->d_id.b24; 1815 memcpy(fcport->node_name, new_fcport->node_name, 1816 WWN_SIZE); 1817 1818 found++; 1819 break; 1820 } 1821 1822 if (!found) { 1823 /* New device, add to fcports list. */ 1824 new_fcport->flags &= ~FCF_PERSISTENT_BOUND; 1825 list_add_tail(&new_fcport->list, &ha->fcports); 1826 1827 /* Allocate a new replacement fcport. */ 1828 fcport = new_fcport; 1829 new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL); 1830 if (new_fcport == NULL) { 1831 rval = QLA_MEMORY_ALLOC_FAILED; 1832 goto cleanup_allocation; 1833 } 1834 new_fcport->flags &= ~FCF_FABRIC_DEVICE; 1835 } 1836 1837 qla2x00_update_fcport(ha, fcport); 1838 1839 found_devs++; 1840 } 1841 1842 cleanup_allocation: 1843 if (new_fcport) 1844 kfree(new_fcport); 1845 1846 if (rval != QLA_SUCCESS) { 1847 DEBUG2(printk("scsi(%ld): Configure local loop error exit: " 1848 "rval=%x\n", ha->host_no, rval)); 1849 } 1850 1851 if (found_devs) { 1852 ha->device_flags |= DFLG_LOCAL_DEVICES; 1853 ha->device_flags &= ~DFLG_RETRY_LOCAL_DEVICES; 1854 } 1855 1856 return (rval); 1857 } 1858 1859 static void 1860 qla2x00_probe_for_all_luns(scsi_qla_host_t *ha) 1861 { 1862 fc_port_t *fcport; 1863 1864 qla2x00_mark_all_devices_lost(ha); 1865 list_for_each_entry(fcport, &ha->fcports, list) { 1866 if (fcport->port_type != FCT_TARGET) 1867 continue; 1868 1869 qla2x00_update_fcport(ha, fcport); 1870 } 1871 } 1872 1873 /* 1874 * qla2x00_update_fcport 1875 * Updates device on list. 1876 * 1877 * Input: 1878 * ha = adapter block pointer. 1879 * fcport = port structure pointer. 1880 * 1881 * Return: 1882 * 0 - Success 1883 * BIT_0 - error 1884 * 1885 * Context: 1886 * Kernel context. 1887 */ 1888 static void 1889 qla2x00_update_fcport(scsi_qla_host_t *ha, fc_port_t *fcport) 1890 { 1891 uint16_t index; 1892 unsigned long flags; 1893 srb_t *sp; 1894 1895 fcport->ha = ha; 1896 fcport->login_retry = 0; 1897 fcport->port_login_retry_count = ha->port_down_retry_count * 1898 PORT_RETRY_TIME; 1899 atomic_set(&fcport->port_down_timer, ha->port_down_retry_count * 1900 PORT_RETRY_TIME); 1901 fcport->flags &= ~FCF_LOGIN_NEEDED; 1902 1903 /* 1904 * Check for outstanding cmd on tape Bypass LUN discovery if active 1905 * command on tape. 1906 */ 1907 if (fcport->flags & FCF_TAPE_PRESENT) { 1908 spin_lock_irqsave(&ha->hardware_lock, flags); 1909 for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) { 1910 if ((sp = ha->outstanding_cmds[index]) != 0) { 1911 if (sp->fclun->fcport == fcport) { 1912 atomic_set(&fcport->state, FCS_ONLINE); 1913 spin_unlock_irqrestore( 1914 &ha->hardware_lock, flags); 1915 return; 1916 } 1917 } 1918 } 1919 spin_unlock_irqrestore(&ha->hardware_lock, flags); 1920 } 1921 1922 /* Do LUN discovery. */ 1923 if (fcport->port_type == FCT_INITIATOR || 1924 fcport->port_type == FCT_BROADCAST) { 1925 fcport->device_type = TYPE_PROCESSOR; 1926 } else { 1927 qla2x00_lun_discovery(ha, fcport); 1928 } 1929 atomic_set(&fcport->state, FCS_ONLINE); 1930 } 1931 1932 /* 1933 * qla2x00_lun_discovery 1934 * Issue SCSI inquiry command for LUN discovery. 1935 * 1936 * Input: 1937 * ha: adapter state pointer. 1938 * fcport: FC port structure pointer. 1939 * 1940 * Context: 1941 * Kernel context. 1942 */ 1943 static void 1944 qla2x00_lun_discovery(scsi_qla_host_t *ha, fc_port_t *fcport) 1945 { 1946 inq_cmd_rsp_t *inq; 1947 dma_addr_t inq_dma; 1948 uint16_t lun; 1949 1950 inq = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &inq_dma); 1951 if (inq == NULL) { 1952 qla_printk(KERN_WARNING, ha, 1953 "Memory Allocation failed - INQ\n"); 1954 return; 1955 } 1956 1957 /* Always add a fc_lun_t structure for lun 0 -- mid-layer requirement */ 1958 qla2x00_add_lun(fcport, 0); 1959 1960 /* If report LUN works, exit. */ 1961 if (qla2x00_rpt_lun_discovery(ha, fcport, inq, inq_dma) != 1962 QLA_SUCCESS) { 1963 for (lun = 0; lun < ha->max_probe_luns; lun++) { 1964 /* Configure LUN. */ 1965 qla2x00_cfg_lun(ha, fcport, lun, inq, inq_dma); 1966 } 1967 } 1968 1969 dma_pool_free(ha->s_dma_pool, inq, inq_dma); 1970 } 1971 1972 /* 1973 * qla2x00_rpt_lun_discovery 1974 * Issue SCSI report LUN command for LUN discovery. 1975 * 1976 * Input: 1977 * ha: adapter state pointer. 1978 * fcport: FC port structure pointer. 1979 * 1980 * Returns: 1981 * qla2x00 local function return status code. 1982 * 1983 * Context: 1984 * Kernel context. 1985 */ 1986 static int 1987 qla2x00_rpt_lun_discovery(scsi_qla_host_t *ha, fc_port_t *fcport, 1988 inq_cmd_rsp_t *inq, dma_addr_t inq_dma) 1989 { 1990 int rval; 1991 uint32_t len, cnt; 1992 uint16_t lun; 1993 1994 /* Assume a failed status */ 1995 rval = QLA_FUNCTION_FAILED; 1996 1997 /* No point in continuing if the device doesn't support RLC */ 1998 if ((fcport->flags & FCF_RLC_SUPPORT) == 0) 1999 return (rval); 2000 2001 rval = qla2x00_report_lun(ha, fcport); 2002 if (rval != QLA_SUCCESS) 2003 return (rval); 2004 2005 /* Configure LUN list. */ 2006 len = be32_to_cpu(ha->rlc_rsp->list.hdr.len); 2007 len /= 8; 2008 for (cnt = 0; cnt < len; cnt++) { 2009 lun = CHAR_TO_SHORT(ha->rlc_rsp->list.lst[cnt].lsb, 2010 ha->rlc_rsp->list.lst[cnt].msb.b); 2011 2012 DEBUG3(printk("scsi(%ld): RLC lun = (%d)\n", ha->host_no, lun)); 2013 2014 /* We only support 0 through MAX_LUNS-1 range */ 2015 if (lun < MAX_LUNS) { 2016 qla2x00_cfg_lun(ha, fcport, lun, inq, inq_dma); 2017 } 2018 } 2019 atomic_set(&fcport->state, FCS_ONLINE); 2020 2021 return (rval); 2022 } 2023 2024 /* 2025 * qla2x00_report_lun 2026 * Issue SCSI report LUN command. 2027 * 2028 * Input: 2029 * ha: adapter state pointer. 2030 * fcport: FC port structure pointer. 2031 * 2032 * Returns: 2033 * qla2x00 local function return status code. 2034 * 2035 * Context: 2036 * Kernel context. 2037 */ 2038 static int 2039 qla2x00_report_lun(scsi_qla_host_t *ha, fc_port_t *fcport) 2040 { 2041 int rval; 2042 uint16_t retries; 2043 uint16_t comp_status; 2044 uint16_t scsi_status; 2045 rpt_lun_cmd_rsp_t *rlc; 2046 dma_addr_t rlc_dma; 2047 2048 rval = QLA_FUNCTION_FAILED; 2049 rlc = ha->rlc_rsp; 2050 rlc_dma = ha->rlc_rsp_dma; 2051 2052 for (retries = 3; retries; retries--) { 2053 memset(rlc, 0, sizeof(rpt_lun_cmd_rsp_t)); 2054 rlc->p.cmd.entry_type = COMMAND_A64_TYPE; 2055 rlc->p.cmd.entry_count = 1; 2056 SET_TARGET_ID(ha, rlc->p.cmd.target, fcport->loop_id); 2057 rlc->p.cmd.control_flags = 2058 __constant_cpu_to_le16(CF_READ | CF_SIMPLE_TAG); 2059 rlc->p.cmd.scsi_cdb[0] = REPORT_LUNS; 2060 rlc->p.cmd.scsi_cdb[8] = MSB(sizeof(rpt_lun_lst_t)); 2061 rlc->p.cmd.scsi_cdb[9] = LSB(sizeof(rpt_lun_lst_t)); 2062 rlc->p.cmd.dseg_count = __constant_cpu_to_le16(1); 2063 rlc->p.cmd.timeout = __constant_cpu_to_le16(10); 2064 rlc->p.cmd.byte_count = 2065 __constant_cpu_to_le32(sizeof(rpt_lun_lst_t)); 2066 rlc->p.cmd.dseg_0_address[0] = cpu_to_le32( 2067 LSD(rlc_dma + sizeof(sts_entry_t))); 2068 rlc->p.cmd.dseg_0_address[1] = cpu_to_le32( 2069 MSD(rlc_dma + sizeof(sts_entry_t))); 2070 rlc->p.cmd.dseg_0_length = 2071 __constant_cpu_to_le32(sizeof(rpt_lun_lst_t)); 2072 2073 rval = qla2x00_issue_iocb(ha, rlc, rlc_dma, 2074 sizeof(rpt_lun_cmd_rsp_t)); 2075 2076 comp_status = le16_to_cpu(rlc->p.rsp.comp_status); 2077 scsi_status = le16_to_cpu(rlc->p.rsp.scsi_status); 2078 2079 if (rval != QLA_SUCCESS || comp_status != CS_COMPLETE || 2080 scsi_status & SS_CHECK_CONDITION) { 2081 2082 /* Device underrun, treat as OK. */ 2083 if (rval == QLA_SUCCESS && 2084 comp_status == CS_DATA_UNDERRUN && 2085 scsi_status & SS_RESIDUAL_UNDER) { 2086 2087 rval = QLA_SUCCESS; 2088 break; 2089 } 2090 2091 DEBUG(printk("scsi(%ld): RLC failed to issue iocb! " 2092 "fcport=[%04x/%p] rval=%x cs=%x ss=%x\n", 2093 ha->host_no, fcport->loop_id, fcport, rval, 2094 comp_status, scsi_status)); 2095 2096 rval = QLA_FUNCTION_FAILED; 2097 if (scsi_status & SS_CHECK_CONDITION) { 2098 DEBUG2(printk("scsi(%ld): RLC " 2099 "SS_CHECK_CONDITION Sense Data " 2100 "%02x %02x %02x %02x %02x %02x %02x %02x\n", 2101 ha->host_no, 2102 rlc->p.rsp.req_sense_data[0], 2103 rlc->p.rsp.req_sense_data[1], 2104 rlc->p.rsp.req_sense_data[2], 2105 rlc->p.rsp.req_sense_data[3], 2106 rlc->p.rsp.req_sense_data[4], 2107 rlc->p.rsp.req_sense_data[5], 2108 rlc->p.rsp.req_sense_data[6], 2109 rlc->p.rsp.req_sense_data[7])); 2110 if (rlc->p.rsp.req_sense_data[2] == 2111 ILLEGAL_REQUEST) { 2112 fcport->flags &= ~(FCF_RLC_SUPPORT); 2113 break; 2114 } 2115 } 2116 } else { 2117 break; 2118 } 2119 } 2120 2121 return (rval); 2122 } 2123 2124 /* 2125 * qla2x00_cfg_lun 2126 * Configures LUN into fcport LUN list. 2127 * 2128 * Input: 2129 * fcport: FC port structure pointer. 2130 * lun: LUN number. 2131 * 2132 * Context: 2133 * Kernel context. 2134 */ 2135 static fc_lun_t * 2136 qla2x00_cfg_lun(scsi_qla_host_t *ha, fc_port_t *fcport, uint16_t lun, 2137 inq_cmd_rsp_t *inq, dma_addr_t inq_dma) 2138 { 2139 fc_lun_t *fclun; 2140 uint8_t device_type; 2141 2142 /* Bypass LUNs that failed. */ 2143 if (qla2x00_inquiry(ha, fcport, lun, inq, inq_dma) != QLA_SUCCESS) { 2144 DEBUG2(printk("scsi(%ld): Failed inquiry - loop id=0x%04x " 2145 "lun=%d\n", ha->host_no, fcport->loop_id, lun)); 2146 2147 return (NULL); 2148 } 2149 device_type = (inq->inq[0] & 0x1f); 2150 switch (device_type) { 2151 case TYPE_DISK: 2152 case TYPE_PROCESSOR: 2153 case TYPE_WORM: 2154 case TYPE_ROM: 2155 case TYPE_SCANNER: 2156 case TYPE_MOD: 2157 case TYPE_MEDIUM_CHANGER: 2158 case TYPE_ENCLOSURE: 2159 case 0x20: 2160 case 0x0C: 2161 break; 2162 case TYPE_TAPE: 2163 fcport->flags |= FCF_TAPE_PRESENT; 2164 break; 2165 default: 2166 DEBUG2(printk("scsi(%ld): Unsupported lun type -- " 2167 "loop id=0x%04x lun=%d type=%x\n", 2168 ha->host_no, fcport->loop_id, lun, device_type)); 2169 return (NULL); 2170 } 2171 2172 fcport->device_type = device_type; 2173 fclun = qla2x00_add_lun(fcport, lun); 2174 2175 if (fclun != NULL) { 2176 atomic_set(&fcport->state, FCS_ONLINE); 2177 } 2178 2179 return (fclun); 2180 } 2181 2182 /* 2183 * qla2x00_add_lun 2184 * Adds LUN to database 2185 * 2186 * Input: 2187 * fcport: FC port structure pointer. 2188 * lun: LUN number. 2189 * 2190 * Context: 2191 * Kernel context. 2192 */ 2193 static fc_lun_t * 2194 qla2x00_add_lun(fc_port_t *fcport, uint16_t lun) 2195 { 2196 int found; 2197 fc_lun_t *fclun; 2198 2199 if (fcport == NULL) { 2200 DEBUG(printk("scsi: Unable to add lun to NULL port\n")); 2201 return (NULL); 2202 } 2203 2204 /* Allocate LUN if not already allocated. */ 2205 found = 0; 2206 list_for_each_entry(fclun, &fcport->fcluns, list) { 2207 if (fclun->lun == lun) { 2208 found++; 2209 break; 2210 } 2211 } 2212 if (found) 2213 return (NULL); 2214 2215 fclun = kmalloc(sizeof(fc_lun_t), GFP_ATOMIC); 2216 if (fclun == NULL) { 2217 printk(KERN_WARNING 2218 "%s(): Memory Allocation failed - FCLUN\n", 2219 __func__); 2220 return (NULL); 2221 } 2222 2223 /* Setup LUN structure. */ 2224 memset(fclun, 0, sizeof(fc_lun_t)); 2225 fclun->lun = lun; 2226 fclun->fcport = fcport; 2227 fclun->o_fcport = fcport; 2228 fclun->device_type = fcport->device_type; 2229 atomic_set(&fcport->state, FCS_UNCONFIGURED); 2230 2231 list_add_tail(&fclun->list, &fcport->fcluns); 2232 2233 return (fclun); 2234 } 2235 2236 /* 2237 * qla2x00_inquiry 2238 * Issue SCSI inquiry command. 2239 * 2240 * Input: 2241 * ha = adapter block pointer. 2242 * fcport = FC port structure pointer. 2243 * 2244 * Return: 2245 * 0 - Success 2246 * BIT_0 - error 2247 * 2248 * Context: 2249 * Kernel context. 2250 */ 2251 static int 2252 qla2x00_inquiry(scsi_qla_host_t *ha, 2253 fc_port_t *fcport, uint16_t lun, inq_cmd_rsp_t *inq, dma_addr_t inq_dma) 2254 { 2255 int rval; 2256 uint16_t retries; 2257 uint16_t comp_status; 2258 uint16_t scsi_status; 2259 2260 rval = QLA_FUNCTION_FAILED; 2261 2262 for (retries = 3; retries; retries--) { 2263 memset(inq, 0, sizeof(inq_cmd_rsp_t)); 2264 inq->p.cmd.entry_type = COMMAND_A64_TYPE; 2265 inq->p.cmd.entry_count = 1; 2266 inq->p.cmd.lun = cpu_to_le16(lun); 2267 SET_TARGET_ID(ha, inq->p.cmd.target, fcport->loop_id); 2268 inq->p.cmd.control_flags = 2269 __constant_cpu_to_le16(CF_READ | CF_SIMPLE_TAG); 2270 inq->p.cmd.scsi_cdb[0] = INQUIRY; 2271 inq->p.cmd.scsi_cdb[4] = INQ_DATA_SIZE; 2272 inq->p.cmd.dseg_count = __constant_cpu_to_le16(1); 2273 inq->p.cmd.timeout = __constant_cpu_to_le16(10); 2274 inq->p.cmd.byte_count = 2275 __constant_cpu_to_le32(INQ_DATA_SIZE); 2276 inq->p.cmd.dseg_0_address[0] = cpu_to_le32( 2277 LSD(inq_dma + sizeof(sts_entry_t))); 2278 inq->p.cmd.dseg_0_address[1] = cpu_to_le32( 2279 MSD(inq_dma + sizeof(sts_entry_t))); 2280 inq->p.cmd.dseg_0_length = 2281 __constant_cpu_to_le32(INQ_DATA_SIZE); 2282 2283 DEBUG5(printk("scsi(%ld): Lun Inquiry - fcport=[%04x/%p]," 2284 " lun (%d)\n", 2285 ha->host_no, fcport->loop_id, fcport, lun)); 2286 2287 rval = qla2x00_issue_iocb(ha, inq, inq_dma, 2288 sizeof(inq_cmd_rsp_t)); 2289 2290 comp_status = le16_to_cpu(inq->p.rsp.comp_status); 2291 scsi_status = le16_to_cpu(inq->p.rsp.scsi_status); 2292 2293 DEBUG5(printk("scsi(%ld): lun (%d) inquiry - " 2294 "inq[0]= 0x%x, comp status 0x%x, scsi status 0x%x, " 2295 "rval=%d\n", 2296 ha->host_no, lun, inq->inq[0], comp_status, scsi_status, 2297 rval)); 2298 2299 if (rval != QLA_SUCCESS || comp_status != CS_COMPLETE || 2300 scsi_status & SS_CHECK_CONDITION) { 2301 2302 DEBUG(printk("scsi(%ld): INQ failed to issue iocb! " 2303 "fcport=[%04x/%p] rval=%x cs=%x ss=%x\n", 2304 ha->host_no, fcport->loop_id, fcport, rval, 2305 comp_status, scsi_status)); 2306 2307 if (rval == QLA_SUCCESS) 2308 rval = QLA_FUNCTION_FAILED; 2309 2310 if (scsi_status & SS_CHECK_CONDITION) { 2311 DEBUG2(printk("scsi(%ld): INQ " 2312 "SS_CHECK_CONDITION Sense Data " 2313 "%02x %02x %02x %02x %02x %02x %02x %02x\n", 2314 ha->host_no, 2315 inq->p.rsp.req_sense_data[0], 2316 inq->p.rsp.req_sense_data[1], 2317 inq->p.rsp.req_sense_data[2], 2318 inq->p.rsp.req_sense_data[3], 2319 inq->p.rsp.req_sense_data[4], 2320 inq->p.rsp.req_sense_data[5], 2321 inq->p.rsp.req_sense_data[6], 2322 inq->p.rsp.req_sense_data[7])); 2323 } 2324 2325 /* Device underrun drop LUN. */ 2326 if (comp_status == CS_DATA_UNDERRUN && 2327 scsi_status & SS_RESIDUAL_UNDER) { 2328 break; 2329 } 2330 } else { 2331 break; 2332 } 2333 } 2334 2335 return (rval); 2336 } 2337 2338 2339 /* 2340 * qla2x00_configure_fabric 2341 * Setup SNS devices with loop ID's. 2342 * 2343 * Input: 2344 * ha = adapter block pointer. 2345 * 2346 * Returns: 2347 * 0 = success. 2348 * BIT_0 = error 2349 */ 2350 static int 2351 qla2x00_configure_fabric(scsi_qla_host_t *ha) 2352 { 2353 int rval, rval2; 2354 fc_port_t *fcport, *fcptemp; 2355 uint16_t next_loopid; 2356 uint16_t mb[MAILBOX_REGISTER_COUNT]; 2357 LIST_HEAD(new_fcports); 2358 2359 /* If FL port exists, then SNS is present */ 2360 rval = qla2x00_get_port_name(ha, SNS_FL_PORT, NULL, 0); 2361 if (rval != QLA_SUCCESS) { 2362 DEBUG2(printk("scsi(%ld): MBC_GET_PORT_NAME Failed, No FL " 2363 "Port\n", ha->host_no)); 2364 2365 ha->device_flags &= ~SWITCH_FOUND; 2366 return (QLA_SUCCESS); 2367 } 2368 2369 /* Mark devices that need re-synchronization. */ 2370 rval2 = qla2x00_device_resync(ha); 2371 if (rval2 == QLA_RSCNS_HANDLED) { 2372 /* No point doing the scan, just continue. */ 2373 return (QLA_SUCCESS); 2374 } 2375 do { 2376 /* Ensure we are logged into the SNS. */ 2377 qla2x00_login_fabric(ha, SIMPLE_NAME_SERVER, 0xff, 0xff, 0xfc, 2378 mb, BIT_1 | BIT_0); 2379 if (mb[0] != MBS_COMMAND_COMPLETE) { 2380 DEBUG2(qla_printk(KERN_INFO, ha, 2381 "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x " 2382 "mb[2]=%x mb[6]=%x mb[7]=%x\n", SIMPLE_NAME_SERVER, 2383 mb[0], mb[1], mb[2], mb[6], mb[7])); 2384 return (QLA_SUCCESS); 2385 } 2386 2387 if (test_and_clear_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags)) { 2388 if (qla2x00_rft_id(ha)) { 2389 /* EMPTY */ 2390 DEBUG2(printk("scsi(%ld): Register FC-4 " 2391 "TYPE failed.\n", ha->host_no)); 2392 } 2393 if (qla2x00_rff_id(ha)) { 2394 /* EMPTY */ 2395 DEBUG2(printk("scsi(%ld): Register FC-4 " 2396 "Features failed.\n", ha->host_no)); 2397 } 2398 if (qla2x00_rnn_id(ha)) { 2399 /* EMPTY */ 2400 DEBUG2(printk("scsi(%ld): Register Node Name " 2401 "failed.\n", ha->host_no)); 2402 } else if (qla2x00_rsnn_nn(ha)) { 2403 /* EMPTY */ 2404 DEBUG2(printk("scsi(%ld): Register Symbolic " 2405 "Node Name failed.\n", ha->host_no)); 2406 } 2407 } 2408 2409 rval = qla2x00_find_all_fabric_devs(ha, &new_fcports); 2410 if (rval != QLA_SUCCESS) 2411 break; 2412 2413 /* 2414 * Logout all previous fabric devices marked lost, except 2415 * tape devices. 2416 */ 2417 list_for_each_entry(fcport, &ha->fcports, list) { 2418 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) 2419 break; 2420 2421 if ((fcport->flags & FCF_FABRIC_DEVICE) == 0) 2422 continue; 2423 2424 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) { 2425 qla2x00_mark_device_lost(ha, fcport, 2426 ql2xplogiabsentdevice); 2427 if (fcport->loop_id != FC_NO_LOOP_ID && 2428 (fcport->flags & FCF_TAPE_PRESENT) == 0 && 2429 fcport->port_type != FCT_INITIATOR && 2430 fcport->port_type != FCT_BROADCAST) { 2431 2432 qla2x00_fabric_logout(ha, 2433 fcport->loop_id); 2434 fcport->loop_id = FC_NO_LOOP_ID; 2435 } 2436 } 2437 } 2438 2439 /* Starting free loop ID. */ 2440 next_loopid = ha->min_external_loopid; 2441 2442 /* 2443 * Scan through our port list and login entries that need to be 2444 * logged in. 2445 */ 2446 list_for_each_entry(fcport, &ha->fcports, list) { 2447 if (atomic_read(&ha->loop_down_timer) || 2448 test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) 2449 break; 2450 2451 if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 || 2452 (fcport->flags & FCF_LOGIN_NEEDED) == 0) 2453 continue; 2454 2455 if (fcport->loop_id == FC_NO_LOOP_ID) { 2456 fcport->loop_id = next_loopid; 2457 rval = qla2x00_find_new_loop_id(ha, fcport); 2458 if (rval != QLA_SUCCESS) { 2459 /* Ran out of IDs to use */ 2460 break; 2461 } 2462 } 2463 2464 /* Login and update database */ 2465 qla2x00_fabric_dev_login(ha, fcport, &next_loopid); 2466 } 2467 2468 /* Exit if out of loop IDs. */ 2469 if (rval != QLA_SUCCESS) { 2470 break; 2471 } 2472 2473 /* 2474 * Login and add the new devices to our port list. 2475 */ 2476 list_for_each_entry_safe(fcport, fcptemp, &new_fcports, list) { 2477 if (atomic_read(&ha->loop_down_timer) || 2478 test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) 2479 break; 2480 2481 /* Find a new loop ID to use. */ 2482 fcport->loop_id = next_loopid; 2483 rval = qla2x00_find_new_loop_id(ha, fcport); 2484 if (rval != QLA_SUCCESS) { 2485 /* Ran out of IDs to use */ 2486 break; 2487 } 2488 2489 /* Login and update database */ 2490 qla2x00_fabric_dev_login(ha, fcport, &next_loopid); 2491 2492 /* Remove device from the new list and add it to DB */ 2493 list_del(&fcport->list); 2494 list_add_tail(&fcport->list, &ha->fcports); 2495 } 2496 } while (0); 2497 2498 /* Free all new device structures not processed. */ 2499 list_for_each_entry_safe(fcport, fcptemp, &new_fcports, list) { 2500 list_del(&fcport->list); 2501 kfree(fcport); 2502 } 2503 2504 if (rval) { 2505 DEBUG2(printk("scsi(%ld): Configure fabric error exit: " 2506 "rval=%d\n", ha->host_no, rval)); 2507 } 2508 2509 return (rval); 2510 } 2511 2512 2513 /* 2514 * qla2x00_find_all_fabric_devs 2515 * 2516 * Input: 2517 * ha = adapter block pointer. 2518 * dev = database device entry pointer. 2519 * 2520 * Returns: 2521 * 0 = success. 2522 * 2523 * Context: 2524 * Kernel context. 2525 */ 2526 static int 2527 qla2x00_find_all_fabric_devs(scsi_qla_host_t *ha, struct list_head *new_fcports) 2528 { 2529 int rval; 2530 uint16_t loop_id; 2531 fc_port_t *fcport, *new_fcport, *fcptemp; 2532 int found; 2533 2534 sw_info_t *swl; 2535 int swl_idx; 2536 int first_dev, last_dev; 2537 port_id_t wrap, nxt_d_id; 2538 2539 rval = QLA_SUCCESS; 2540 2541 /* Try GID_PT to get device list, else GAN. */ 2542 swl = kmalloc(sizeof(sw_info_t) * MAX_FIBRE_DEVICES, GFP_ATOMIC); 2543 if (swl == NULL) { 2544 /*EMPTY*/ 2545 DEBUG2(printk("scsi(%ld): GID_PT allocations failed, fallback " 2546 "on GA_NXT\n", ha->host_no)); 2547 } else { 2548 memset(swl, 0, sizeof(sw_info_t) * MAX_FIBRE_DEVICES); 2549 if (qla2x00_gid_pt(ha, swl) != QLA_SUCCESS) { 2550 kfree(swl); 2551 swl = NULL; 2552 } else if (qla2x00_gpn_id(ha, swl) != QLA_SUCCESS) { 2553 kfree(swl); 2554 swl = NULL; 2555 } else if (qla2x00_gnn_id(ha, swl) != QLA_SUCCESS) { 2556 kfree(swl); 2557 swl = NULL; 2558 } 2559 } 2560 swl_idx = 0; 2561 2562 /* Allocate temporary fcport for any new fcports discovered. */ 2563 new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL); 2564 if (new_fcport == NULL) { 2565 if (swl) 2566 kfree(swl); 2567 return (QLA_MEMORY_ALLOC_FAILED); 2568 } 2569 new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED); 2570 2571 /* Set start port ID scan at adapter ID. */ 2572 first_dev = 1; 2573 last_dev = 0; 2574 2575 /* Starting free loop ID. */ 2576 loop_id = ha->min_external_loopid; 2577 2578 for (; loop_id <= ha->last_loop_id; loop_id++) { 2579 if (RESERVED_LOOP_ID(loop_id)) 2580 continue; 2581 2582 if (atomic_read(&ha->loop_down_timer) || 2583 test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) 2584 break; 2585 2586 if (swl != NULL) { 2587 if (last_dev) { 2588 wrap.b24 = new_fcport->d_id.b24; 2589 } else { 2590 new_fcport->d_id.b24 = swl[swl_idx].d_id.b24; 2591 memcpy(new_fcport->node_name, 2592 swl[swl_idx].node_name, WWN_SIZE); 2593 memcpy(new_fcport->port_name, 2594 swl[swl_idx].port_name, WWN_SIZE); 2595 2596 if (swl[swl_idx].d_id.b.rsvd_1 != 0) { 2597 last_dev = 1; 2598 } 2599 swl_idx++; 2600 } 2601 } else { 2602 /* Send GA_NXT to the switch */ 2603 rval = qla2x00_ga_nxt(ha, new_fcport); 2604 if (rval != QLA_SUCCESS) { 2605 qla_printk(KERN_WARNING, ha, 2606 "SNS scan failed -- assuming zero-entry " 2607 "result...\n"); 2608 list_for_each_entry_safe(fcport, fcptemp, 2609 new_fcports, list) { 2610 list_del(&fcport->list); 2611 kfree(fcport); 2612 } 2613 rval = QLA_SUCCESS; 2614 break; 2615 } 2616 } 2617 2618 /* If wrap on switch device list, exit. */ 2619 if (first_dev) { 2620 wrap.b24 = new_fcport->d_id.b24; 2621 first_dev = 0; 2622 } else if (new_fcport->d_id.b24 == wrap.b24) { 2623 DEBUG2(printk("scsi(%ld): device wrap (%02x%02x%02x)\n", 2624 ha->host_no, new_fcport->d_id.b.domain, 2625 new_fcport->d_id.b.area, new_fcport->d_id.b.al_pa)); 2626 break; 2627 } 2628 2629 /* Bypass if host adapter. */ 2630 if (new_fcport->d_id.b24 == ha->d_id.b24) 2631 continue; 2632 2633 /* Bypass reserved domain fields. */ 2634 if ((new_fcport->d_id.b.domain & 0xf0) == 0xf0) 2635 continue; 2636 2637 /* Locate matching device in database. */ 2638 found = 0; 2639 list_for_each_entry(fcport, &ha->fcports, list) { 2640 if (memcmp(new_fcport->port_name, fcport->port_name, 2641 WWN_SIZE)) 2642 continue; 2643 2644 found++; 2645 2646 /* 2647 * If address the same and state FCS_ONLINE, nothing 2648 * changed. 2649 */ 2650 if (fcport->d_id.b24 == new_fcport->d_id.b24 && 2651 atomic_read(&fcport->state) == FCS_ONLINE) { 2652 break; 2653 } 2654 2655 /* 2656 * If device was not a fabric device before. 2657 */ 2658 if ((fcport->flags & FCF_FABRIC_DEVICE) == 0) { 2659 fcport->d_id.b24 = new_fcport->d_id.b24; 2660 fcport->loop_id = FC_NO_LOOP_ID; 2661 fcport->flags |= (FCF_FABRIC_DEVICE | 2662 FCF_LOGIN_NEEDED); 2663 fcport->flags &= ~FCF_PERSISTENT_BOUND; 2664 break; 2665 } 2666 2667 /* 2668 * Port ID changed or device was marked to be updated; 2669 * Log it out if still logged in and mark it for 2670 * relogin later. 2671 */ 2672 fcport->d_id.b24 = new_fcport->d_id.b24; 2673 fcport->flags |= FCF_LOGIN_NEEDED; 2674 if (fcport->loop_id != FC_NO_LOOP_ID && 2675 (fcport->flags & FCF_TAPE_PRESENT) == 0 && 2676 fcport->port_type != FCT_INITIATOR && 2677 fcport->port_type != FCT_BROADCAST) { 2678 qla2x00_fabric_logout(ha, fcport->loop_id); 2679 fcport->loop_id = FC_NO_LOOP_ID; 2680 } 2681 2682 break; 2683 } 2684 2685 if (found) 2686 continue; 2687 2688 /* If device was not in our fcports list, then add it. */ 2689 list_add_tail(&new_fcport->list, new_fcports); 2690 2691 /* Allocate a new replacement fcport. */ 2692 nxt_d_id.b24 = new_fcport->d_id.b24; 2693 new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL); 2694 if (new_fcport == NULL) { 2695 if (swl) 2696 kfree(swl); 2697 return (QLA_MEMORY_ALLOC_FAILED); 2698 } 2699 new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED); 2700 new_fcport->d_id.b24 = nxt_d_id.b24; 2701 } 2702 2703 if (swl) 2704 kfree(swl); 2705 2706 if (new_fcport) 2707 kfree(new_fcport); 2708 2709 if (!list_empty(new_fcports)) 2710 ha->device_flags |= DFLG_FABRIC_DEVICES; 2711 2712 return (rval); 2713 } 2714 2715 /* 2716 * qla2x00_find_new_loop_id 2717 * Scan through our port list and find a new usable loop ID. 2718 * 2719 * Input: 2720 * ha: adapter state pointer. 2721 * dev: port structure pointer. 2722 * 2723 * Returns: 2724 * qla2x00 local function return status code. 2725 * 2726 * Context: 2727 * Kernel context. 2728 */ 2729 int 2730 qla2x00_find_new_loop_id(scsi_qla_host_t *ha, fc_port_t *dev) 2731 { 2732 int rval; 2733 int found; 2734 fc_port_t *fcport; 2735 uint16_t first_loop_id; 2736 2737 rval = QLA_SUCCESS; 2738 2739 /* Save starting loop ID. */ 2740 first_loop_id = dev->loop_id; 2741 2742 for (;;) { 2743 /* Skip loop ID if already used by adapter. */ 2744 if (dev->loop_id == ha->loop_id) { 2745 dev->loop_id++; 2746 } 2747 2748 /* Skip reserved loop IDs. */ 2749 while (RESERVED_LOOP_ID(dev->loop_id)) { 2750 dev->loop_id++; 2751 } 2752 2753 /* Reset loop ID if passed the end. */ 2754 if (dev->loop_id > ha->last_loop_id) { 2755 /* first loop ID. */ 2756 dev->loop_id = ha->min_external_loopid; 2757 } 2758 2759 /* Check for loop ID being already in use. */ 2760 found = 0; 2761 fcport = NULL; 2762 list_for_each_entry(fcport, &ha->fcports, list) { 2763 if (fcport->loop_id == dev->loop_id && fcport != dev) { 2764 /* ID possibly in use */ 2765 found++; 2766 break; 2767 } 2768 } 2769 2770 /* If not in use then it is free to use. */ 2771 if (!found) { 2772 break; 2773 } 2774 2775 /* ID in use. Try next value. */ 2776 dev->loop_id++; 2777 2778 /* If wrap around. No free ID to use. */ 2779 if (dev->loop_id == first_loop_id) { 2780 dev->loop_id = FC_NO_LOOP_ID; 2781 rval = QLA_FUNCTION_FAILED; 2782 break; 2783 } 2784 } 2785 2786 return (rval); 2787 } 2788 2789 /* 2790 * qla2x00_device_resync 2791 * Marks devices in the database that needs resynchronization. 2792 * 2793 * Input: 2794 * ha = adapter block pointer. 2795 * 2796 * Context: 2797 * Kernel context. 2798 */ 2799 static int 2800 qla2x00_device_resync(scsi_qla_host_t *ha) 2801 { 2802 int rval; 2803 int rval2; 2804 uint32_t mask; 2805 fc_port_t *fcport; 2806 uint32_t rscn_entry; 2807 uint8_t rscn_out_iter; 2808 uint8_t format; 2809 port_id_t d_id; 2810 2811 rval = QLA_RSCNS_HANDLED; 2812 2813 while (ha->rscn_out_ptr != ha->rscn_in_ptr || 2814 ha->flags.rscn_queue_overflow) { 2815 2816 rscn_entry = ha->rscn_queue[ha->rscn_out_ptr]; 2817 format = MSB(MSW(rscn_entry)); 2818 d_id.b.domain = LSB(MSW(rscn_entry)); 2819 d_id.b.area = MSB(LSW(rscn_entry)); 2820 d_id.b.al_pa = LSB(LSW(rscn_entry)); 2821 2822 DEBUG(printk("scsi(%ld): RSCN queue entry[%d] = " 2823 "[%02x/%02x%02x%02x].\n", 2824 ha->host_no, ha->rscn_out_ptr, format, d_id.b.domain, 2825 d_id.b.area, d_id.b.al_pa)); 2826 2827 ha->rscn_out_ptr++; 2828 if (ha->rscn_out_ptr == MAX_RSCN_COUNT) 2829 ha->rscn_out_ptr = 0; 2830 2831 /* Skip duplicate entries. */ 2832 for (rscn_out_iter = ha->rscn_out_ptr; 2833 !ha->flags.rscn_queue_overflow && 2834 rscn_out_iter != ha->rscn_in_ptr; 2835 rscn_out_iter = (rscn_out_iter == 2836 (MAX_RSCN_COUNT - 1)) ? 0: rscn_out_iter + 1) { 2837 2838 if (rscn_entry != ha->rscn_queue[rscn_out_iter]) 2839 break; 2840 2841 DEBUG(printk("scsi(%ld): Skipping duplicate RSCN queue " 2842 "entry found at [%d].\n", ha->host_no, 2843 rscn_out_iter)); 2844 2845 ha->rscn_out_ptr = rscn_out_iter; 2846 } 2847 2848 /* Queue overflow, set switch default case. */ 2849 if (ha->flags.rscn_queue_overflow) { 2850 DEBUG(printk("scsi(%ld): device_resync: rscn " 2851 "overflow.\n", ha->host_no)); 2852 2853 format = 3; 2854 ha->flags.rscn_queue_overflow = 0; 2855 } 2856 2857 switch (format) { 2858 case 0: 2859 if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && 2860 !IS_QLA6312(ha) && !IS_QLA6322(ha) && 2861 ha->flags.init_done) { 2862 /* Handle port RSCN via asyncronous IOCBs */ 2863 rval2 = qla2x00_handle_port_rscn(ha, rscn_entry, 2864 NULL, 0); 2865 if (rval2 == QLA_SUCCESS) 2866 continue; 2867 } 2868 mask = 0xffffff; 2869 break; 2870 case 1: 2871 mask = 0xffff00; 2872 break; 2873 case 2: 2874 mask = 0xff0000; 2875 break; 2876 default: 2877 mask = 0x0; 2878 d_id.b24 = 0; 2879 ha->rscn_out_ptr = ha->rscn_in_ptr; 2880 break; 2881 } 2882 2883 rval = QLA_SUCCESS; 2884 2885 /* Abort any outstanding IO descriptors. */ 2886 if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) 2887 qla2x00_cancel_io_descriptors(ha); 2888 2889 list_for_each_entry(fcport, &ha->fcports, list) { 2890 if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 || 2891 (fcport->d_id.b24 & mask) != d_id.b24 || 2892 fcport->port_type == FCT_BROADCAST) 2893 continue; 2894 2895 if (atomic_read(&fcport->state) == FCS_ONLINE) { 2896 if (format != 3 || 2897 fcport->port_type != FCT_INITIATOR) { 2898 atomic_set(&fcport->state, 2899 FCS_DEVICE_LOST); 2900 } 2901 } 2902 fcport->flags &= ~FCF_FARP_DONE; 2903 } 2904 } 2905 return (rval); 2906 } 2907 2908 /* 2909 * qla2x00_fabric_dev_login 2910 * Login fabric target device and update FC port database. 2911 * 2912 * Input: 2913 * ha: adapter state pointer. 2914 * fcport: port structure list pointer. 2915 * next_loopid: contains value of a new loop ID that can be used 2916 * by the next login attempt. 2917 * 2918 * Returns: 2919 * qla2x00 local function return status code. 2920 * 2921 * Context: 2922 * Kernel context. 2923 */ 2924 static int 2925 qla2x00_fabric_dev_login(scsi_qla_host_t *ha, fc_port_t *fcport, 2926 uint16_t *next_loopid) 2927 { 2928 int rval; 2929 int retry; 2930 2931 rval = QLA_SUCCESS; 2932 retry = 0; 2933 2934 rval = qla2x00_fabric_login(ha, fcport, next_loopid); 2935 if (rval == QLA_SUCCESS) { 2936 rval = qla2x00_get_port_database(ha, fcport, 0); 2937 if (rval != QLA_SUCCESS) { 2938 qla2x00_fabric_logout(ha, fcport->loop_id); 2939 } else { 2940 qla2x00_update_fcport(ha, fcport); 2941 } 2942 } 2943 2944 return (rval); 2945 } 2946 2947 /* 2948 * qla2x00_fabric_login 2949 * Issue fabric login command. 2950 * 2951 * Input: 2952 * ha = adapter block pointer. 2953 * device = pointer to FC device type structure. 2954 * 2955 * Returns: 2956 * 0 - Login successfully 2957 * 1 - Login failed 2958 * 2 - Initiator device 2959 * 3 - Fatal error 2960 */ 2961 int 2962 qla2x00_fabric_login(scsi_qla_host_t *ha, fc_port_t *fcport, 2963 uint16_t *next_loopid) 2964 { 2965 int rval; 2966 int retry; 2967 uint16_t tmp_loopid; 2968 uint16_t mb[MAILBOX_REGISTER_COUNT]; 2969 2970 retry = 0; 2971 tmp_loopid = 0; 2972 2973 for (;;) { 2974 DEBUG(printk("scsi(%ld): Trying Fabric Login w/loop id 0x%04x " 2975 "for port %02x%02x%02x.\n", 2976 ha->host_no, fcport->loop_id, fcport->d_id.b.domain, 2977 fcport->d_id.b.area, fcport->d_id.b.al_pa)); 2978 2979 /* Login fcport on switch. */ 2980 qla2x00_login_fabric(ha, fcport->loop_id, 2981 fcport->d_id.b.domain, fcport->d_id.b.area, 2982 fcport->d_id.b.al_pa, mb, BIT_0); 2983 if (mb[0] == MBS_PORT_ID_USED) { 2984 /* 2985 * Device has another loop ID. The firmware team 2986 * recommends us to perform an implicit login with the 2987 * specified ID again. The ID we just used is save here 2988 * so we return with an ID that can be tried by the 2989 * next login. 2990 */ 2991 retry++; 2992 tmp_loopid = fcport->loop_id; 2993 fcport->loop_id = mb[1]; 2994 2995 DEBUG(printk("Fabric Login: port in use - next " 2996 "loop id=0x%04x, port Id=%02x%02x%02x.\n", 2997 fcport->loop_id, fcport->d_id.b.domain, 2998 fcport->d_id.b.area, fcport->d_id.b.al_pa)); 2999 3000 } else if (mb[0] == MBS_COMMAND_COMPLETE) { 3001 /* 3002 * Login succeeded. 3003 */ 3004 if (retry) { 3005 /* A retry occurred before. */ 3006 *next_loopid = tmp_loopid; 3007 } else { 3008 /* 3009 * No retry occurred before. Just increment the 3010 * ID value for next login. 3011 */ 3012 *next_loopid = (fcport->loop_id + 1); 3013 } 3014 3015 if (mb[1] & BIT_0) { 3016 fcport->port_type = FCT_INITIATOR; 3017 } else { 3018 fcport->port_type = FCT_TARGET; 3019 if (mb[1] & BIT_1) { 3020 fcport->flags |= FCF_TAPE_PRESENT; 3021 } 3022 } 3023 3024 rval = QLA_SUCCESS; 3025 break; 3026 } else if (mb[0] == MBS_LOOP_ID_USED) { 3027 /* 3028 * Loop ID already used, try next loop ID. 3029 */ 3030 fcport->loop_id++; 3031 rval = qla2x00_find_new_loop_id(ha, fcport); 3032 if (rval != QLA_SUCCESS) { 3033 /* Ran out of loop IDs to use */ 3034 break; 3035 } 3036 } else if (mb[0] == MBS_COMMAND_ERROR) { 3037 /* 3038 * Firmware possibly timed out during login. If NO 3039 * retries are left to do then the device is declared 3040 * dead. 3041 */ 3042 *next_loopid = fcport->loop_id; 3043 qla2x00_fabric_logout(ha, fcport->loop_id); 3044 qla2x00_mark_device_lost(ha, fcport, 1); 3045 3046 rval = 1; 3047 break; 3048 } else { 3049 /* 3050 * unrecoverable / not handled error 3051 */ 3052 DEBUG2(printk("%s(%ld): failed=%x port_id=%02x%02x%02x " 3053 "loop_id=%x jiffies=%lx.\n", 3054 __func__, ha->host_no, mb[0], 3055 fcport->d_id.b.domain, fcport->d_id.b.area, 3056 fcport->d_id.b.al_pa, fcport->loop_id, jiffies)); 3057 3058 *next_loopid = fcport->loop_id; 3059 qla2x00_fabric_logout(ha, fcport->loop_id); 3060 fcport->loop_id = FC_NO_LOOP_ID; 3061 atomic_set(&fcport->state, FCS_DEVICE_DEAD); 3062 3063 rval = 3; 3064 break; 3065 } 3066 } 3067 3068 return (rval); 3069 } 3070 3071 /* 3072 * qla2x00_local_device_login 3073 * Issue local device login command. 3074 * 3075 * Input: 3076 * ha = adapter block pointer. 3077 * loop_id = loop id of device to login to. 3078 * 3079 * Returns (Where's the #define!!!!): 3080 * 0 - Login successfully 3081 * 1 - Login failed 3082 * 3 - Fatal error 3083 */ 3084 int 3085 qla2x00_local_device_login(scsi_qla_host_t *ha, uint16_t loop_id) 3086 { 3087 int rval; 3088 uint16_t mb[MAILBOX_REGISTER_COUNT]; 3089 3090 memset(mb, 0, sizeof(mb)); 3091 rval = qla2x00_login_local_device(ha, loop_id, mb, BIT_0); 3092 if (rval == QLA_SUCCESS) { 3093 /* Interrogate mailbox registers for any errors */ 3094 if (mb[0] == MBS_COMMAND_ERROR) 3095 rval = 1; 3096 else if (mb[0] == MBS_COMMAND_PARAMETER_ERROR) 3097 /* device not in PCB table */ 3098 rval = 3; 3099 } 3100 3101 return (rval); 3102 } 3103 3104 /* 3105 * qla2x00_loop_resync 3106 * Resync with fibre channel devices. 3107 * 3108 * Input: 3109 * ha = adapter block pointer. 3110 * 3111 * Returns: 3112 * 0 = success 3113 */ 3114 int 3115 qla2x00_loop_resync(scsi_qla_host_t *ha) 3116 { 3117 int rval; 3118 uint32_t wait_time; 3119 3120 rval = QLA_SUCCESS; 3121 3122 atomic_set(&ha->loop_state, LOOP_UPDATE); 3123 qla2x00_stats.loop_resync++; 3124 clear_bit(ISP_ABORT_RETRY, &ha->dpc_flags); 3125 if (ha->flags.online) { 3126 if (!(rval = qla2x00_fw_ready(ha))) { 3127 /* Wait at most MAX_TARGET RSCNs for a stable link. */ 3128 wait_time = 256; 3129 do { 3130 /* v2.19.05b6 */ 3131 atomic_set(&ha->loop_state, LOOP_UPDATE); 3132 3133 /* 3134 * Issue marker command only when we are going 3135 * to start the I/O . 3136 */ 3137 ha->marker_needed = 1; 3138 3139 /* Remap devices on Loop. */ 3140 clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags); 3141 3142 qla2x00_configure_loop(ha); 3143 wait_time--; 3144 } while (!atomic_read(&ha->loop_down_timer) && 3145 !(test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) && 3146 wait_time && 3147 (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))); 3148 } 3149 qla2x00_restart_queues(ha, 1); 3150 } 3151 3152 if (test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) { 3153 return (QLA_FUNCTION_FAILED); 3154 } 3155 3156 if (rval) { 3157 DEBUG2_3(printk("%s(): **** FAILED ****\n", __func__)); 3158 } 3159 3160 return (rval); 3161 } 3162 3163 /* 3164 * qla2x00_restart_queues 3165 * Restart device queues. 3166 * 3167 * Input: 3168 * ha = adapter block pointer. 3169 * 3170 * Context: 3171 * Kernel/Interrupt context. 3172 */ 3173 void 3174 qla2x00_restart_queues(scsi_qla_host_t *ha, uint8_t flush) 3175 { 3176 srb_t *sp; 3177 int retry_q_cnt = 0; 3178 int pending_q_cnt = 0; 3179 struct list_head *list, *temp; 3180 unsigned long flags = 0; 3181 3182 clear_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags); 3183 3184 /* start pending queue */ 3185 pending_q_cnt = ha->qthreads; 3186 if (flush) { 3187 spin_lock_irqsave(&ha->list_lock,flags); 3188 list_for_each_safe(list, temp, &ha->pending_queue) { 3189 sp = list_entry(list, srb_t, list); 3190 3191 if ((sp->flags & SRB_TAPE)) 3192 continue; 3193 3194 /* 3195 * When time expire return request back to OS as BUSY 3196 */ 3197 __del_from_pending_queue(ha, sp); 3198 sp->cmd->result = DID_BUS_BUSY << 16; 3199 sp->cmd->host_scribble = (unsigned char *)NULL; 3200 __add_to_done_queue(ha, sp); 3201 } 3202 spin_unlock_irqrestore(&ha->list_lock, flags); 3203 } else { 3204 if (!list_empty(&ha->pending_queue)) 3205 qla2x00_next(ha); 3206 } 3207 3208 /* 3209 * Clear out our retry queue 3210 */ 3211 if (flush) { 3212 spin_lock_irqsave(&ha->list_lock, flags); 3213 retry_q_cnt = ha->retry_q_cnt; 3214 list_for_each_safe(list, temp, &ha->retry_queue) { 3215 sp = list_entry(list, srb_t, list); 3216 /* when time expire return request back to OS as BUSY */ 3217 __del_from_retry_queue(ha, sp); 3218 sp->cmd->result = DID_BUS_BUSY << 16; 3219 sp->cmd->host_scribble = (unsigned char *)NULL; 3220 __add_to_done_queue(ha, sp); 3221 } 3222 spin_unlock_irqrestore(&ha->list_lock, flags); 3223 3224 DEBUG2(printk("%s(%ld): callback %d commands.\n", 3225 __func__, 3226 ha->host_no, 3227 retry_q_cnt);) 3228 } 3229 3230 DEBUG2(printk("%s(%ld): active=%ld, retry=%d, pending=%d, " 3231 "done=%ld, scsi retry=%d commands.\n", 3232 __func__, 3233 ha->host_no, 3234 ha->actthreads, 3235 ha->retry_q_cnt, 3236 pending_q_cnt, 3237 ha->done_q_cnt, 3238 ha->scsi_retry_q_cnt);) 3239 3240 if (!list_empty(&ha->done_queue)) 3241 qla2x00_done(ha); 3242 } 3243 3244 void 3245 qla2x00_rescan_fcports(scsi_qla_host_t *ha) 3246 { 3247 int rescan_done; 3248 fc_port_t *fcport; 3249 3250 rescan_done = 0; 3251 list_for_each_entry(fcport, &ha->fcports, list) { 3252 if ((fcport->flags & FCF_RESCAN_NEEDED) == 0) 3253 continue; 3254 3255 qla2x00_update_fcport(ha, fcport); 3256 fcport->flags &= ~FCF_RESCAN_NEEDED; 3257 3258 rescan_done = 1; 3259 } 3260 qla2x00_probe_for_all_luns(ha); 3261 3262 /* Update OS target and lun structures if necessary. */ 3263 if (rescan_done) { 3264 qla2x00_config_os(ha); 3265 } 3266 } 3267 3268 3269 /* 3270 * qla2x00_config_os 3271 * Setup OS target and LUN structures. 3272 * 3273 * Input: 3274 * ha = adapter state pointer. 3275 * 3276 * Context: 3277 * Kernel context. 3278 */ 3279 static void 3280 qla2x00_config_os(scsi_qla_host_t *ha) 3281 { 3282 fc_port_t *fcport; 3283 fc_lun_t *fclun; 3284 os_tgt_t *tq; 3285 uint16_t tgt; 3286 3287 3288 for (tgt = 0; tgt < MAX_TARGETS; tgt++) { 3289 if ((tq = TGT_Q(ha, tgt)) == NULL) 3290 continue; 3291 3292 clear_bit(TQF_ONLINE, &tq->flags); 3293 } 3294 3295 list_for_each_entry(fcport, &ha->fcports, list) { 3296 if (atomic_read(&fcport->state) != FCS_ONLINE || 3297 fcport->port_type == FCT_INITIATOR || 3298 fcport->port_type == FCT_BROADCAST) { 3299 fcport->os_target_id = MAX_TARGETS; 3300 continue; 3301 } 3302 3303 if (fcport->flags & FCF_FO_MASKED) { 3304 continue; 3305 } 3306 3307 /* Bind FC port to OS target number. */ 3308 if (qla2x00_fcport_bind(ha, fcport) == MAX_TARGETS) { 3309 continue; 3310 } 3311 3312 /* Bind FC LUN to OS LUN number. */ 3313 list_for_each_entry(fclun, &fcport->fcluns, list) { 3314 qla2x00_fclun_bind(ha, fcport, fclun); 3315 } 3316 } 3317 } 3318 3319 /* 3320 * qla2x00_fcport_bind 3321 * Locates a target number for FC port. 3322 * 3323 * Input: 3324 * ha = adapter state pointer. 3325 * fcport = FC port structure pointer. 3326 * 3327 * Returns: 3328 * target number 3329 * 3330 * Context: 3331 * Kernel context. 3332 */ 3333 static uint16_t 3334 qla2x00_fcport_bind(scsi_qla_host_t *ha, fc_port_t *fcport) 3335 { 3336 int found; 3337 uint16_t tgt; 3338 os_tgt_t *tq; 3339 3340 /* Check for persistent binding. */ 3341 for (tgt = 0; tgt < MAX_TARGETS; tgt++) { 3342 if ((tq = TGT_Q(ha, tgt)) == NULL) 3343 continue; 3344 3345 found = 0; 3346 switch (ha->binding_type) { 3347 case BIND_BY_PORT_ID: 3348 if (fcport->d_id.b24 == tq->d_id.b24) { 3349 memcpy(tq->node_name, fcport->node_name, 3350 WWN_SIZE); 3351 memcpy(tq->port_name, fcport->port_name, 3352 WWN_SIZE); 3353 found++; 3354 } 3355 break; 3356 case BIND_BY_PORT_NAME: 3357 if (memcmp(fcport->port_name, tq->port_name, 3358 WWN_SIZE) == 0) { 3359 /* 3360 * In case of persistent binding, update the 3361 * WWNN. 3362 */ 3363 memcpy(tq->node_name, fcport->node_name, 3364 WWN_SIZE); 3365 found++; 3366 } 3367 break; 3368 } 3369 if (found) 3370 break; 3371 } 3372 3373 /* TODO: honor the ConfigRequired flag */ 3374 if (tgt == MAX_TARGETS) { 3375 /* Check if targetID 0 available. */ 3376 tgt = 0; 3377 3378 if (TGT_Q(ha, tgt) != NULL) { 3379 /* Locate first free target for device. */ 3380 for (tgt = 0; tgt < MAX_TARGETS; tgt++) { 3381 if (TGT_Q(ha, tgt) == NULL) { 3382 break; 3383 } 3384 } 3385 } 3386 if (tgt != MAX_TARGETS) { 3387 if ((tq = qla2x00_tgt_alloc(ha, tgt)) != NULL) { 3388 memcpy(tq->node_name, fcport->node_name, 3389 WWN_SIZE); 3390 memcpy(tq->port_name, fcport->port_name, 3391 WWN_SIZE); 3392 tq->d_id.b24 = fcport->d_id.b24; 3393 } 3394 } 3395 } 3396 3397 /* Reset target numbers incase it changed. */ 3398 fcport->os_target_id = tgt; 3399 if (tgt != MAX_TARGETS && tq != NULL) { 3400 DEBUG2(printk("scsi(%ld): Assigning target ID=%02d @ %p to " 3401 "loop id=0x%04x, port state=0x%x, port down retry=%d\n", 3402 ha->host_no, tgt, tq, fcport->loop_id, 3403 atomic_read(&fcport->state), 3404 atomic_read(&fcport->port_down_timer))); 3405 3406 fcport->tgt_queue = tq; 3407 fcport->flags |= FCF_PERSISTENT_BOUND; 3408 tq->fcport = fcport; 3409 set_bit(TQF_ONLINE, &tq->flags); 3410 tq->port_down_retry_count = ha->port_down_retry_count; 3411 } 3412 3413 if (tgt == MAX_TARGETS) { 3414 qla_printk(KERN_WARNING, ha, 3415 "Unable to bind fcport, loop_id=%x\n", fcport->loop_id); 3416 } 3417 3418 return (tgt); 3419 } 3420 3421 /* 3422 * qla2x00_fclun_bind 3423 * Binds all FC device LUNS to OS LUNS. 3424 * 3425 * Input: 3426 * ha: adapter state pointer. 3427 * fcport: FC port structure pointer. 3428 * 3429 * Returns: 3430 * target number 3431 * 3432 * Context: 3433 * Kernel context. 3434 */ 3435 static os_lun_t * 3436 qla2x00_fclun_bind(scsi_qla_host_t *ha, fc_port_t *fcport, fc_lun_t *fclun) 3437 { 3438 os_lun_t *lq; 3439 uint16_t tgt; 3440 uint16_t lun; 3441 3442 tgt = fcport->os_target_id; 3443 lun = fclun->lun; 3444 3445 /* Allocate LUNs */ 3446 if (lun >= MAX_LUNS) { 3447 DEBUG2(printk("scsi(%ld): Unable to bind lun, invalid " 3448 "lun=(%x).\n", ha->host_no, lun)); 3449 return (NULL); 3450 } 3451 3452 /* Always alloc LUN 0 so kernel will scan past LUN 0. */ 3453 if (lun != 0 && (EXT_IS_LUN_BIT_SET(&(fcport->lun_mask), lun))) { 3454 return (NULL); 3455 } 3456 3457 if ((lq = qla2x00_lun_alloc(ha, tgt, lun)) == NULL) { 3458 qla_printk(KERN_WARNING, ha, 3459 "Unable to bind fclun, loop_id=%x lun=%x\n", 3460 fcport->loop_id, lun); 3461 return (NULL); 3462 } 3463 3464 lq->fclun = fclun; 3465 3466 return (lq); 3467 } 3468 3469 /* 3470 * qla2x00_tgt_alloc 3471 * Allocate and pre-initialize target queue. 3472 * 3473 * Input: 3474 * ha = adapter block pointer. 3475 * t = SCSI target number. 3476 * 3477 * Returns: 3478 * NULL = failure 3479 * 3480 * Context: 3481 * Kernel context. 3482 */ 3483 static os_tgt_t * 3484 qla2x00_tgt_alloc(scsi_qla_host_t *ha, uint16_t tgt) 3485 { 3486 os_tgt_t *tq; 3487 3488 /* 3489 * If SCSI addressing OK, allocate TGT queue and lock. 3490 */ 3491 if (tgt >= MAX_TARGETS) { 3492 DEBUG2(printk("scsi(%ld): Unable to allocate target, invalid " 3493 "target number %d.\n", ha->host_no, tgt)); 3494 return (NULL); 3495 } 3496 3497 tq = TGT_Q(ha, tgt); 3498 if (tq == NULL) { 3499 tq = kmalloc(sizeof(os_tgt_t), GFP_ATOMIC); 3500 if (tq != NULL) { 3501 DEBUG2(printk("scsi(%ld): Alloc Target %d @ %p\n", 3502 ha->host_no, tgt, tq)); 3503 3504 memset(tq, 0, sizeof(os_tgt_t)); 3505 tq->ha = ha; 3506 3507 TGT_Q(ha, tgt) = tq; 3508 } 3509 } 3510 if (tq != NULL) { 3511 tq->port_down_retry_count = ha->port_down_retry_count; 3512 } else { 3513 qla_printk(KERN_WARNING, ha, 3514 "Unable to allocate target.\n"); 3515 ha->mem_err++; 3516 } 3517 3518 return (tq); 3519 } 3520 3521 /* 3522 * qla2x00_tgt_free 3523 * Frees target and LUN queues. 3524 * 3525 * Input: 3526 * ha = adapter block pointer. 3527 * t = SCSI target number. 3528 * 3529 * Context: 3530 * Kernel context. 3531 */ 3532 void 3533 qla2x00_tgt_free(scsi_qla_host_t *ha, uint16_t tgt) 3534 { 3535 os_tgt_t *tq; 3536 uint16_t lun; 3537 3538 /* 3539 * If SCSI addressing OK, allocate TGT queue and lock. 3540 */ 3541 if (tgt >= MAX_TARGETS) { 3542 DEBUG2(printk("scsi(%ld): Unable to de-allocate target, " 3543 "invalid target number %d.\n", ha->host_no, tgt)); 3544 3545 return; 3546 } 3547 3548 tq = TGT_Q(ha, tgt); 3549 if (tq != NULL) { 3550 TGT_Q(ha, tgt) = NULL; 3551 3552 /* Free LUN structures. */ 3553 for (lun = 0; lun < MAX_LUNS; lun++) 3554 qla2x00_lun_free(ha, tgt, lun); 3555 3556 kfree(tq); 3557 } 3558 3559 return; 3560 } 3561 3562 /* 3563 * qla2x00_lun_alloc 3564 * Allocate and initialize LUN queue. 3565 * 3566 * Input: 3567 * ha = adapter block pointer. 3568 * t = SCSI target number. 3569 * l = LUN number. 3570 * 3571 * Returns: 3572 * NULL = failure 3573 * 3574 * Context: 3575 * Kernel context. 3576 */ 3577 static os_lun_t * 3578 qla2x00_lun_alloc(scsi_qla_host_t *ha, uint16_t tgt, uint16_t lun) 3579 { 3580 os_lun_t *lq; 3581 3582 /* 3583 * If SCSI addressing OK, allocate LUN queue. 3584 */ 3585 if (tgt >= MAX_TARGETS || lun >= MAX_LUNS || TGT_Q(ha, tgt) == NULL) { 3586 DEBUG2(printk("scsi(%ld): Unable to allocate lun, invalid " 3587 "parameter.\n", ha->host_no)); 3588 3589 return (NULL); 3590 } 3591 3592 lq = LUN_Q(ha, tgt, lun); 3593 if (lq == NULL) { 3594 lq = kmalloc(sizeof(os_lun_t), GFP_ATOMIC); 3595 if (lq != NULL) { 3596 DEBUG2(printk("scsi(%ld): Alloc Lun %d @ tgt %d.\n", 3597 ha->host_no, lun, tgt)); 3598 3599 memset(lq, 0, sizeof(os_lun_t)); 3600 LUN_Q(ha, tgt, lun) = lq; 3601 3602 /* 3603 * The following lun queue initialization code 3604 * must be duplicated in alloc_ioctl_mem function 3605 * for ioctl_lq. 3606 */ 3607 lq->q_state = LUN_STATE_READY; 3608 spin_lock_init(&lq->q_lock); 3609 } 3610 } 3611 3612 if (lq == NULL) { 3613 qla_printk(KERN_WARNING, ha, "Unable to allocate lun.\n"); 3614 } 3615 3616 return (lq); 3617 } 3618 3619 /* 3620 * qla2x00_lun_free 3621 * Frees LUN queue. 3622 * 3623 * Input: 3624 * ha = adapter block pointer. 3625 * t = SCSI target number. 3626 * 3627 * Context: 3628 * Kernel context. 3629 */ 3630 static void 3631 qla2x00_lun_free(scsi_qla_host_t *ha, uint16_t tgt, uint16_t lun) 3632 { 3633 os_lun_t *lq; 3634 3635 /* 3636 * If SCSI addressing OK, allocate TGT queue and lock. 3637 */ 3638 if (tgt >= MAX_TARGETS || lun >= MAX_LUNS) { 3639 DEBUG2(printk("scsi(%ld): Unable to deallocate lun, invalid " 3640 "parameter.\n", ha->host_no)); 3641 3642 return; 3643 } 3644 3645 if (TGT_Q(ha, tgt) != NULL && (lq = LUN_Q(ha, tgt, lun)) != NULL) { 3646 LUN_Q(ha, tgt, lun) = NULL; 3647 kfree(lq); 3648 } 3649 3650 return; 3651 } 3652 3653 /* 3654 * qla2x00_abort_isp 3655 * Resets ISP and aborts all outstanding commands. 3656 * 3657 * Input: 3658 * ha = adapter block pointer. 3659 * 3660 * Returns: 3661 * 0 = success 3662 */ 3663 int 3664 qla2x00_abort_isp(scsi_qla_host_t *ha) 3665 { 3666 unsigned long flags = 0; 3667 uint16_t cnt; 3668 srb_t *sp; 3669 uint8_t status = 0; 3670 3671 if (ha->flags.online) { 3672 ha->flags.online = 0; 3673 clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); 3674 qla2x00_stats.ispAbort++; 3675 ha->total_isp_aborts++; /* used by ioctl */ 3676 ha->sns_retry_cnt = 0; 3677 3678 qla_printk(KERN_INFO, ha, 3679 "Performing ISP error recovery - ha= %p.\n", ha); 3680 qla2x00_reset_chip(ha); 3681 3682 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME); 3683 if (atomic_read(&ha->loop_state) != LOOP_DOWN) { 3684 atomic_set(&ha->loop_state, LOOP_DOWN); 3685 qla2x00_mark_all_devices_lost(ha); 3686 } else { 3687 if (!atomic_read(&ha->loop_down_timer)) 3688 atomic_set(&ha->loop_down_timer, 3689 LOOP_DOWN_TIME); 3690 } 3691 3692 spin_lock_irqsave(&ha->hardware_lock, flags); 3693 /* Requeue all commands in outstanding command list. */ 3694 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) { 3695 sp = ha->outstanding_cmds[cnt]; 3696 if (sp) { 3697 ha->outstanding_cmds[cnt] = NULL; 3698 if (ha->actthreads) 3699 ha->actthreads--; 3700 sp->lun_queue->out_cnt--; 3701 3702 /* 3703 * Set the cmd host_byte status depending on 3704 * whether the scsi_error_handler is 3705 * active or not. 3706 */ 3707 if (sp->flags & SRB_TAPE) { 3708 sp->cmd->result = DID_NO_CONNECT << 16; 3709 } else { 3710 if (ha->host->eh_active != EH_ACTIVE) 3711 sp->cmd->result = 3712 DID_BUS_BUSY << 16; 3713 else 3714 sp->cmd->result = 3715 DID_RESET << 16; 3716 } 3717 sp->flags = 0; 3718 sp->cmd->host_scribble = (unsigned char *)NULL; 3719 add_to_done_queue(ha, sp); 3720 } 3721 } 3722 spin_unlock_irqrestore(&ha->hardware_lock, flags); 3723 3724 qla2x00_nvram_config(ha); 3725 3726 if (!qla2x00_restart_isp(ha)) { 3727 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags); 3728 3729 if (!atomic_read(&ha->loop_down_timer)) { 3730 /* 3731 * Issue marker command only when we are going 3732 * to start the I/O . 3733 */ 3734 ha->marker_needed = 1; 3735 } 3736 3737 ha->flags.online = 1; 3738 3739 /* Enable ISP interrupts. */ 3740 qla2x00_enable_intrs(ha); 3741 3742 /* v2.19.5b6 Return all commands */ 3743 qla2x00_abort_queues(ha, 1); 3744 3745 /* Restart queues that may have been stopped. */ 3746 qla2x00_restart_queues(ha, 1); 3747 ha->isp_abort_cnt = 0; 3748 clear_bit(ISP_ABORT_RETRY, &ha->dpc_flags); 3749 } else { /* failed the ISP abort */ 3750 ha->flags.online = 1; 3751 if (test_bit(ISP_ABORT_RETRY, &ha->dpc_flags)) { 3752 if (ha->isp_abort_cnt == 0) { 3753 qla_printk(KERN_WARNING, ha, 3754 "ISP error recovery failed - " 3755 "board disabled\n"); 3756 /* 3757 * The next call disables the board 3758 * completely. 3759 */ 3760 qla2x00_reset_adapter(ha); 3761 qla2x00_abort_queues(ha, 0); 3762 ha->flags.online = 0; 3763 clear_bit(ISP_ABORT_RETRY, 3764 &ha->dpc_flags); 3765 status = 0; 3766 } else { /* schedule another ISP abort */ 3767 ha->isp_abort_cnt--; 3768 DEBUG(printk("qla%ld: ISP abort - " 3769 "retry remainning %d\n", 3770 ha->host_no, ha->isp_abort_cnt);) 3771 status = 1; 3772 } 3773 } else { 3774 ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT; 3775 DEBUG(printk("qla2x00(%ld): ISP error recovery " 3776 "- retrying (%d) more times\n", 3777 ha->host_no, ha->isp_abort_cnt);) 3778 set_bit(ISP_ABORT_RETRY, &ha->dpc_flags); 3779 status = 1; 3780 } 3781 } 3782 3783 } 3784 3785 if (status) { 3786 qla_printk(KERN_INFO, ha, 3787 "qla2x00_abort_isp: **** FAILED ****\n"); 3788 } else { 3789 DEBUG(printk(KERN_INFO 3790 "qla2x00_abort_isp(%ld): exiting.\n", 3791 ha->host_no);) 3792 } 3793 3794 return(status); 3795 } 3796 3797 /* 3798 * qla2x00_restart_isp 3799 * restarts the ISP after a reset 3800 * 3801 * Input: 3802 * ha = adapter block pointer. 3803 * 3804 * Returns: 3805 * 0 = success 3806 */ 3807 static int 3808 qla2x00_restart_isp(scsi_qla_host_t *ha) 3809 { 3810 uint8_t status = 0; 3811 device_reg_t __iomem *reg = ha->iobase; 3812 unsigned long flags = 0; 3813 uint32_t wait_time; 3814 3815 /* If firmware needs to be loaded */ 3816 if (qla2x00_isp_firmware(ha)) { 3817 ha->flags.online = 0; 3818 if (!(status = qla2x00_chip_diag(ha))) { 3819 if (IS_QLA2100(ha) || IS_QLA2200(ha)) { 3820 status = qla2x00_setup_chip(ha); 3821 goto done; 3822 } 3823 3824 reg = ha->iobase; 3825 3826 spin_lock_irqsave(&ha->hardware_lock, flags); 3827 3828 /* Disable SRAM, Instruction RAM and GP RAM parity. */ 3829 WRT_REG_WORD(®->hccr, (HCCR_ENABLE_PARITY + 0x0)); 3830 RD_REG_WORD(®->hccr); /* PCI Posting. */ 3831 3832 spin_unlock_irqrestore(&ha->hardware_lock, flags); 3833 3834 status = qla2x00_setup_chip(ha); 3835 3836 spin_lock_irqsave(&ha->hardware_lock, flags); 3837 3838 /* Enable proper parity */ 3839 if (IS_QLA2300(ha)) 3840 /* SRAM parity */ 3841 WRT_REG_WORD(®->hccr, 3842 (HCCR_ENABLE_PARITY + 0x1)); 3843 else 3844 /* SRAM, Instruction RAM and GP RAM parity */ 3845 WRT_REG_WORD(®->hccr, 3846 (HCCR_ENABLE_PARITY + 0x7)); 3847 RD_REG_WORD(®->hccr); /* PCI Posting. */ 3848 3849 spin_unlock_irqrestore(&ha->hardware_lock, flags); 3850 } 3851 } 3852 3853 done: 3854 if (!status && !(status = qla2x00_init_rings(ha))) { 3855 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags); 3856 if (!(status = qla2x00_fw_ready(ha))) { 3857 DEBUG(printk("%s(): Start configure loop, " 3858 "status = %d\n", 3859 __func__, 3860 status);) 3861 ha->flags.online = 1; 3862 /* Wait at most MAX_TARGET RSCNs for a stable link. */ 3863 wait_time = 256; 3864 do { 3865 clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags); 3866 qla2x00_configure_loop(ha); 3867 wait_time--; 3868 } while (!atomic_read(&ha->loop_down_timer) && 3869 !(test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) && 3870 wait_time && 3871 (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))); 3872 } 3873 3874 /* if no cable then assume it's good */ 3875 if ((ha->device_flags & DFLG_NO_CABLE)) 3876 status = 0; 3877 3878 DEBUG(printk("%s(): Configure loop done, status = 0x%x\n", 3879 __func__, 3880 status);) 3881 } 3882 return (status); 3883 } 3884 3885 /* 3886 * qla2x00_reset_adapter 3887 * Reset adapter. 3888 * 3889 * Input: 3890 * ha = adapter block pointer. 3891 */ 3892 static void 3893 qla2x00_reset_adapter(scsi_qla_host_t *ha) 3894 { 3895 unsigned long flags = 0; 3896 device_reg_t __iomem *reg = ha->iobase; 3897 3898 ha->flags.online = 0; 3899 qla2x00_disable_intrs(ha); 3900 3901 /* Reset RISC processor. */ 3902 spin_lock_irqsave(&ha->hardware_lock, flags); 3903 WRT_REG_WORD(®->hccr, HCCR_RESET_RISC); 3904 RD_REG_WORD(®->hccr); /* PCI Posting. */ 3905 WRT_REG_WORD(®->hccr, HCCR_RELEASE_RISC); 3906 RD_REG_WORD(®->hccr); /* PCI Posting. */ 3907 spin_unlock_irqrestore(&ha->hardware_lock, flags); 3908 } 3909