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[SCSI] qla2xxx: Always aquire the parent's hardware_lock.
[linux-2.6/linux-loongson.git] / drivers / scsi / qla2xxx / qla_init.c
blob4c83ff81d79b792113091b20c5168dab174b6915
1 /*
2 * QLogic Fibre Channel HBA Driver
3 * Copyright (c) 2003-2008 QLogic Corporation
4 *
5 * See LICENSE.qla2xxx for copyright and licensing details.
6 */
7 #include "qla_def.h"
8
9 #include <linux/delay.h>
10 #include <linux/vmalloc.h>
11
12 #include "qla_devtbl.h"
13
14 #ifdef CONFIG_SPARC
15 #include <asm/prom.h>
16 #endif
17
18 /*
19 * QLogic ISP2x00 Hardware Support Function Prototypes.
20 */
21 static int qla2x00_isp_firmware(scsi_qla_host_t *);
22 static void qla2x00_resize_request_q(scsi_qla_host_t *);
23 static int qla2x00_setup_chip(scsi_qla_host_t *);
24 static void qla2x00_init_response_q_entries(scsi_qla_host_t *);
25 static int qla2x00_init_rings(scsi_qla_host_t *);
26 static int qla2x00_fw_ready(scsi_qla_host_t *);
27 static int qla2x00_configure_hba(scsi_qla_host_t *);
28 static int qla2x00_configure_loop(scsi_qla_host_t *);
29 static int qla2x00_configure_local_loop(scsi_qla_host_t *);
30 static int qla2x00_configure_fabric(scsi_qla_host_t *);
31 static int qla2x00_find_all_fabric_devs(scsi_qla_host_t *, struct list_head *);
32 static int qla2x00_device_resync(scsi_qla_host_t *);
33 static int qla2x00_fabric_dev_login(scsi_qla_host_t *, fc_port_t *,
34 uint16_t *);
35
36 static int qla2x00_restart_isp(scsi_qla_host_t *);
37
38 static int qla2x00_find_new_loop_id(scsi_qla_host_t *ha, fc_port_t *dev);
39
40 static struct qla_chip_state_84xx *qla84xx_get_chip(struct scsi_qla_host *);
41 static int qla84xx_init_chip(scsi_qla_host_t *);
42
43 /****************************************************************************/
44 /* QLogic ISP2x00 Hardware Support Functions. */
45 /****************************************************************************/
46
47 /*
48 * qla2x00_initialize_adapter
49 * Initialize board.
50 *
51 * Input:
52 * ha = adapter block pointer.
53 *
54 * Returns:
55 * 0 = success
56 */
57 int
58 qla2x00_initialize_adapter(scsi_qla_host_t *ha)
59 {
60 int rval;
61
62 /* Clear adapter flags. */
63 ha->flags.online = 0;
64 ha->flags.reset_active = 0;
65 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
66 atomic_set(&ha->loop_state, LOOP_DOWN);
67 ha->device_flags = DFLG_NO_CABLE;
68 ha->dpc_flags = 0;
69 ha->flags.management_server_logged_in = 0;
70 ha->marker_needed = 0;
71 ha->mbx_flags = 0;
72 ha->isp_abort_cnt = 0;
73 ha->beacon_blink_led = 0;
74 set_bit(REGISTER_FDMI_NEEDED, &ha->dpc_flags);
75
76 qla_printk(KERN_INFO, ha, "Configuring PCI space...\n");
77 rval = ha->isp_ops->pci_config(ha);
78 if (rval) {
79 DEBUG2(printk("scsi(%ld): Unable to configure PCI space.\n",
80 ha->host_no));
81 return (rval);
82 }
83
84 ha->isp_ops->reset_chip(ha);
85
86 ha->isp_ops->get_flash_version(ha, ha->request_ring);
87
88 qla_printk(KERN_INFO, ha, "Configure NVRAM parameters...\n");
89
90 ha->isp_ops->nvram_config(ha);
91
92 if (ha->flags.disable_serdes) {
93 /* Mask HBA via NVRAM settings? */
94 qla_printk(KERN_INFO, ha, "Masking HBA WWPN "
95 "%02x%02x%02x%02x%02x%02x%02x%02x (via NVRAM).\n",
96 ha->port_name[0], ha->port_name[1],
97 ha->port_name[2], ha->port_name[3],
98 ha->port_name[4], ha->port_name[5],
99 ha->port_name[6], ha->port_name[7]);
100 return QLA_FUNCTION_FAILED;
101 }
102
103 qla_printk(KERN_INFO, ha, "Verifying loaded RISC code...\n");
104
105 if (qla2x00_isp_firmware(ha) != QLA_SUCCESS) {
106 rval = ha->isp_ops->chip_diag(ha);
107 if (rval)
108 return (rval);
109 rval = qla2x00_setup_chip(ha);
110 if (rval)
111 return (rval);
112 qla2xxx_get_flash_info(ha);
113 }
114 if (IS_QLA84XX(ha)) {
115 ha->cs84xx = qla84xx_get_chip(ha);
116 if (!ha->cs84xx) {
117 qla_printk(KERN_ERR, ha,
118 "Unable to configure ISP84XX.\n");
119 return QLA_FUNCTION_FAILED;
120 }
121 }
122 rval = qla2x00_init_rings(ha);
123
124 return (rval);
125 }
126
127 /**
128 * qla2100_pci_config() - Setup ISP21xx PCI configuration registers.
129 * @ha: HA context
130 *
131 * Returns 0 on success.
132 */
133 int
134 qla2100_pci_config(scsi_qla_host_t *ha)
135 {
136 uint16_t w;
137 uint32_t d;
138 unsigned long flags;
139 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
140
141 pci_set_master(ha->pdev);
142 pci_try_set_mwi(ha->pdev);
143
144 pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
145 w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
146 pci_write_config_word(ha->pdev, PCI_COMMAND, w);
147
148 /* Reset expansion ROM address decode enable */
149 pci_read_config_dword(ha->pdev, PCI_ROM_ADDRESS, &d);
150 d &= ~PCI_ROM_ADDRESS_ENABLE;
151 pci_write_config_dword(ha->pdev, PCI_ROM_ADDRESS, d);
152
153 /* Get PCI bus information. */
154 spin_lock_irqsave(&ha->hardware_lock, flags);
155 ha->pci_attr = RD_REG_WORD(&reg->ctrl_status);
156 spin_unlock_irqrestore(&ha->hardware_lock, flags);
157
158 return QLA_SUCCESS;
159 }
160
161 /**
162 * qla2300_pci_config() - Setup ISP23xx PCI configuration registers.
163 * @ha: HA context
164 *
165 * Returns 0 on success.
166 */
167 int
168 qla2300_pci_config(scsi_qla_host_t *ha)
169 {
170 uint16_t w;
171 uint32_t d;
172 unsigned long flags = 0;
173 uint32_t cnt;
174 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
175
176 pci_set_master(ha->pdev);
177 pci_try_set_mwi(ha->pdev);
178
179 pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
180 w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
181
182 if (IS_QLA2322(ha) || IS_QLA6322(ha))
183 w &= ~PCI_COMMAND_INTX_DISABLE;
184 pci_write_config_word(ha->pdev, PCI_COMMAND, w);
185
186 /*
187 * If this is a 2300 card and not 2312, reset the
188 * COMMAND_INVALIDATE due to a bug in the 2300. Unfortunately,
189 * the 2310 also reports itself as a 2300 so we need to get the
190 * fb revision level -- a 6 indicates it really is a 2300 and
191 * not a 2310.
192 */
193 if (IS_QLA2300(ha)) {
194 spin_lock_irqsave(&ha->hardware_lock, flags);
195
196 /* Pause RISC. */
197 WRT_REG_WORD(&reg->hccr, HCCR_PAUSE_RISC);
198 for (cnt = 0; cnt < 30000; cnt++) {
199 if ((RD_REG_WORD(&reg->hccr) & HCCR_RISC_PAUSE) != 0)
200 break;
201
202 udelay(10);
203 }
204
205 /* Select FPM registers. */
206 WRT_REG_WORD(&reg->ctrl_status, 0x20);
207 RD_REG_WORD(&reg->ctrl_status);
208
209 /* Get the fb rev level */
210 ha->fb_rev = RD_FB_CMD_REG(ha, reg);
211
212 if (ha->fb_rev == FPM_2300)
213 pci_clear_mwi(ha->pdev);
214
215 /* Deselect FPM registers. */
216 WRT_REG_WORD(&reg->ctrl_status, 0x0);
217 RD_REG_WORD(&reg->ctrl_status);
218
219 /* Release RISC module. */
220 WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
221 for (cnt = 0; cnt < 30000; cnt++) {
222 if ((RD_REG_WORD(&reg->hccr) & HCCR_RISC_PAUSE) == 0)
223 break;
224
225 udelay(10);
226 }
227
228 spin_unlock_irqrestore(&ha->hardware_lock, flags);
229 }
230
231 pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);
232
233 /* Reset expansion ROM address decode enable */
234 pci_read_config_dword(ha->pdev, PCI_ROM_ADDRESS, &d);
235 d &= ~PCI_ROM_ADDRESS_ENABLE;
236 pci_write_config_dword(ha->pdev, PCI_ROM_ADDRESS, d);
237
238 /* Get PCI bus information. */
239 spin_lock_irqsave(&ha->hardware_lock, flags);
240 ha->pci_attr = RD_REG_WORD(&reg->ctrl_status);
241 spin_unlock_irqrestore(&ha->hardware_lock, flags);
242
243 return QLA_SUCCESS;
244 }
245
246 /**
247 * qla24xx_pci_config() - Setup ISP24xx PCI configuration registers.
248 * @ha: HA context
249 *
250 * Returns 0 on success.
251 */
252 int
253 qla24xx_pci_config(scsi_qla_host_t *ha)
254 {
255 uint16_t w;
256 uint32_t d;
257 unsigned long flags = 0;
258 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
259
260 pci_set_master(ha->pdev);
261 pci_try_set_mwi(ha->pdev);
262
263 pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
264 w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
265 w &= ~PCI_COMMAND_INTX_DISABLE;
266 pci_write_config_word(ha->pdev, PCI_COMMAND, w);
267
268 pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);
269
270 /* PCI-X -- adjust Maximum Memory Read Byte Count (2048). */
271 if (pci_find_capability(ha->pdev, PCI_CAP_ID_PCIX))
272 pcix_set_mmrbc(ha->pdev, 2048);
273
274 /* PCIe -- adjust Maximum Read Request Size (2048). */
275 if (pci_find_capability(ha->pdev, PCI_CAP_ID_EXP))
276 pcie_set_readrq(ha->pdev, 2048);
277
278 /* Reset expansion ROM address decode enable */
279 pci_read_config_dword(ha->pdev, PCI_ROM_ADDRESS, &d);
280 d &= ~PCI_ROM_ADDRESS_ENABLE;
281 pci_write_config_dword(ha->pdev, PCI_ROM_ADDRESS, d);
282
283 ha->chip_revision = ha->pdev->revision;
284
285 /* Get PCI bus information. */
286 spin_lock_irqsave(&ha->hardware_lock, flags);
287 ha->pci_attr = RD_REG_DWORD(&reg->ctrl_status);
288 spin_unlock_irqrestore(&ha->hardware_lock, flags);
289
290 return QLA_SUCCESS;
291 }
292
293 /**
294 * qla25xx_pci_config() - Setup ISP25xx PCI configuration registers.
295 * @ha: HA context
296 *
297 * Returns 0 on success.
298 */
299 int
300 qla25xx_pci_config(scsi_qla_host_t *ha)
301 {
302 uint16_t w;
303 uint32_t d;
304
305 pci_set_master(ha->pdev);
306 pci_try_set_mwi(ha->pdev);
307
308 pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
309 w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
310 w &= ~PCI_COMMAND_INTX_DISABLE;
311 pci_write_config_word(ha->pdev, PCI_COMMAND, w);
312
313 /* PCIe -- adjust Maximum Read Request Size (2048). */
314 if (pci_find_capability(ha->pdev, PCI_CAP_ID_EXP))
315 pcie_set_readrq(ha->pdev, 2048);
316
317 /* Reset expansion ROM address decode enable */
318 pci_read_config_dword(ha->pdev, PCI_ROM_ADDRESS, &d);
319 d &= ~PCI_ROM_ADDRESS_ENABLE;
320 pci_write_config_dword(ha->pdev, PCI_ROM_ADDRESS, d);
321
322 ha->chip_revision = ha->pdev->revision;
323
324 return QLA_SUCCESS;
325 }
326
327 /**
328 * qla2x00_isp_firmware() - Choose firmware image.
329 * @ha: HA context
330 *
331 * Returns 0 on success.
332 */
333 static int
334 qla2x00_isp_firmware(scsi_qla_host_t *ha)
335 {
336 int rval;
337
338 /* Assume loading risc code */
339 rval = QLA_FUNCTION_FAILED;
340
341 if (ha->flags.disable_risc_code_load) {
342 DEBUG2(printk("scsi(%ld): RISC CODE NOT loaded\n",
343 ha->host_no));
344 qla_printk(KERN_INFO, ha, "RISC CODE NOT loaded\n");
345
346 /* Verify checksum of loaded RISC code. */
347 rval = qla2x00_verify_checksum(ha, ha->fw_srisc_address);
348 }
349
350 if (rval) {
351 DEBUG2_3(printk("scsi(%ld): **** Load RISC code ****\n",
352 ha->host_no));
353 }
354
355 return (rval);
356 }
357
358 /**
359 * qla2x00_reset_chip() - Reset ISP chip.
360 * @ha: HA context
361 *
362 * Returns 0 on success.
363 */
364 void
365 qla2x00_reset_chip(scsi_qla_host_t *ha)
366 {
367 unsigned long flags = 0;
368 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
369 uint32_t cnt;
370 uint16_t cmd;
371
372 ha->isp_ops->disable_intrs(ha);
373
374 spin_lock_irqsave(&ha->hardware_lock, flags);
375
376 /* Turn off master enable */
377 cmd = 0;
378 pci_read_config_word(ha->pdev, PCI_COMMAND, &cmd);
379 cmd &= ~PCI_COMMAND_MASTER;
380 pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);
381
382 if (!IS_QLA2100(ha)) {
383 /* Pause RISC. */
384 WRT_REG_WORD(&reg->hccr, HCCR_PAUSE_RISC);
385 if (IS_QLA2200(ha) || IS_QLA2300(ha)) {
386 for (cnt = 0; cnt < 30000; cnt++) {
387 if ((RD_REG_WORD(&reg->hccr) &
388 HCCR_RISC_PAUSE) != 0)
389 break;
390 udelay(100);
391 }
392 } else {
393 RD_REG_WORD(&reg->hccr); /* PCI Posting. */
394 udelay(10);
395 }
396
397 /* Select FPM registers. */
398 WRT_REG_WORD(&reg->ctrl_status, 0x20);
399 RD_REG_WORD(&reg->ctrl_status); /* PCI Posting. */
400
401 /* FPM Soft Reset. */
402 WRT_REG_WORD(&reg->fpm_diag_config, 0x100);
403 RD_REG_WORD(&reg->fpm_diag_config); /* PCI Posting. */
404
405 /* Toggle Fpm Reset. */
406 if (!IS_QLA2200(ha)) {
407 WRT_REG_WORD(&reg->fpm_diag_config, 0x0);
408 RD_REG_WORD(&reg->fpm_diag_config); /* PCI Posting. */
409 }
410
411 /* Select frame buffer registers. */
412 WRT_REG_WORD(&reg->ctrl_status, 0x10);
413 RD_REG_WORD(&reg->ctrl_status); /* PCI Posting. */
414
415 /* Reset frame buffer FIFOs. */
416 if (IS_QLA2200(ha)) {
417 WRT_FB_CMD_REG(ha, reg, 0xa000);
418 RD_FB_CMD_REG(ha, reg); /* PCI Posting. */
419 } else {
420 WRT_FB_CMD_REG(ha, reg, 0x00fc);
421
422 /* Read back fb_cmd until zero or 3 seconds max */
423 for (cnt = 0; cnt < 3000; cnt++) {
424 if ((RD_FB_CMD_REG(ha, reg) & 0xff) == 0)
425 break;
426 udelay(100);
427 }
428 }
429
430 /* Select RISC module registers. */
431 WRT_REG_WORD(&reg->ctrl_status, 0);
432 RD_REG_WORD(&reg->ctrl_status); /* PCI Posting. */
433
434 /* Reset RISC processor. */
435 WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
436 RD_REG_WORD(&reg->hccr); /* PCI Posting. */
437
438 /* Release RISC processor. */
439 WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
440 RD_REG_WORD(&reg->hccr); /* PCI Posting. */
441 }
442
443 WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
444 WRT_REG_WORD(&reg->hccr, HCCR_CLR_HOST_INT);
445
446 /* Reset ISP chip. */
447 WRT_REG_WORD(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
448
449 /* Wait for RISC to recover from reset. */
450 if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
451 /*
452 * It is necessary to for a delay here since the card doesn't
453 * respond to PCI reads during a reset. On some architectures
454 * this will result in an MCA.
455 */
456 udelay(20);
457 for (cnt = 30000; cnt; cnt--) {
458 if ((RD_REG_WORD(&reg->ctrl_status) &
459 CSR_ISP_SOFT_RESET) == 0)
460 break;
461 udelay(100);
462 }
463 } else
464 udelay(10);
465
466 /* Reset RISC processor. */
467 WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
468
469 WRT_REG_WORD(&reg->semaphore, 0);
470
471 /* Release RISC processor. */
472 WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
473 RD_REG_WORD(&reg->hccr); /* PCI Posting. */
474
475 if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
476 for (cnt = 0; cnt < 30000; cnt++) {
477 if (RD_MAILBOX_REG(ha, reg, 0) != MBS_BUSY)
478 break;
479
480 udelay(100);
481 }
482 } else
483 udelay(100);
484
485 /* Turn on master enable */
486 cmd |= PCI_COMMAND_MASTER;
487 pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);
488
489 /* Disable RISC pause on FPM parity error. */
490 if (!IS_QLA2100(ha)) {
491 WRT_REG_WORD(&reg->hccr, HCCR_DISABLE_PARITY_PAUSE);
492 RD_REG_WORD(&reg->hccr); /* PCI Posting. */
493 }
494
495 spin_unlock_irqrestore(&ha->hardware_lock, flags);
496 }
497
498 /**
499 * qla24xx_reset_risc() - Perform full reset of ISP24xx RISC.
500 * @ha: HA context
501 *
502 * Returns 0 on success.
503 */
504 static inline void
505 qla24xx_reset_risc(scsi_qla_host_t *ha)
506 {
507 int hw_evt = 0;
508 unsigned long flags = 0;
509 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
510 uint32_t cnt, d2;
511 uint16_t wd;
512
513 spin_lock_irqsave(&ha->hardware_lock, flags);
514
515 /* Reset RISC. */
516 WRT_REG_DWORD(&reg->ctrl_status, CSRX_DMA_SHUTDOWN|MWB_4096_BYTES);
517 for (cnt = 0; cnt < 30000; cnt++) {
518 if ((RD_REG_DWORD(&reg->ctrl_status) & CSRX_DMA_ACTIVE) == 0)
519 break;
520
521 udelay(10);
522 }
523
524 WRT_REG_DWORD(&reg->ctrl_status,
525 CSRX_ISP_SOFT_RESET|CSRX_DMA_SHUTDOWN|MWB_4096_BYTES);
526 pci_read_config_word(ha->pdev, PCI_COMMAND, &wd);
527
528 udelay(100);
529 /* Wait for firmware to complete NVRAM accesses. */
530 d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
531 for (cnt = 10000 ; cnt && d2; cnt--) {
532 udelay(5);
533 d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
534 barrier();
535 }
536 if (cnt == 0)
537 hw_evt = 1;
538
539 /* Wait for soft-reset to complete. */
540 d2 = RD_REG_DWORD(&reg->ctrl_status);
541 for (cnt = 6000000 ; cnt && (d2 & CSRX_ISP_SOFT_RESET); cnt--) {
542 udelay(5);
543 d2 = RD_REG_DWORD(&reg->ctrl_status);
544 barrier();
545 }
546 if (cnt == 0 || hw_evt)
547 qla2xxx_hw_event_log(ha, HW_EVENT_RESET_ERR,
548 RD_REG_WORD(&reg->mailbox1), RD_REG_WORD(&reg->mailbox2),
549 RD_REG_WORD(&reg->mailbox3));
550
551 WRT_REG_DWORD(&reg->hccr, HCCRX_SET_RISC_RESET);
552 RD_REG_DWORD(&reg->hccr);
553
554 WRT_REG_DWORD(&reg->hccr, HCCRX_REL_RISC_PAUSE);
555 RD_REG_DWORD(&reg->hccr);
556
557 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_RESET);
558 RD_REG_DWORD(&reg->hccr);
559
560 d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
561 for (cnt = 6000000 ; cnt && d2; cnt--) {
562 udelay(5);
563 d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
564 barrier();
565 }
566
567 spin_unlock_irqrestore(&ha->hardware_lock, flags);
568 }
569
570 /**
571 * qla24xx_reset_chip() - Reset ISP24xx chip.
572 * @ha: HA context
573 *
574 * Returns 0 on success.
575 */
576 void
577 qla24xx_reset_chip(scsi_qla_host_t *ha)
578 {
579 ha->isp_ops->disable_intrs(ha);
580
581 /* Perform RISC reset. */
582 qla24xx_reset_risc(ha);
583 }
584
585 /**
586 * qla2x00_chip_diag() - Test chip for proper operation.
587 * @ha: HA context
588 *
589 * Returns 0 on success.
590 */
591 int
592 qla2x00_chip_diag(scsi_qla_host_t *ha)
593 {
594 int rval;
595 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
596 unsigned long flags = 0;
597 uint16_t data;
598 uint32_t cnt;
599 uint16_t mb[5];
600
601 /* Assume a failed state */
602 rval = QLA_FUNCTION_FAILED;
603
604 DEBUG3(printk("scsi(%ld): Testing device at %lx.\n",
605 ha->host_no, (u_long)&reg->flash_address));
606
607 spin_lock_irqsave(&ha->hardware_lock, flags);
608
609 /* Reset ISP chip. */
610 WRT_REG_WORD(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
611
612 /*
613 * We need to have a delay here since the card will not respond while
614 * in reset causing an MCA on some architectures.
615 */
616 udelay(20);
617 data = qla2x00_debounce_register(&reg->ctrl_status);
618 for (cnt = 6000000 ; cnt && (data & CSR_ISP_SOFT_RESET); cnt--) {
619 udelay(5);
620 data = RD_REG_WORD(&reg->ctrl_status);
621 barrier();
622 }
623
624 if (!cnt)
625 goto chip_diag_failed;
626
627 DEBUG3(printk("scsi(%ld): Reset register cleared by chip reset\n",
628 ha->host_no));
629
630 /* Reset RISC processor. */
631 WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
632 WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
633
634 /* Workaround for QLA2312 PCI parity error */
635 if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
636 data = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 0));
637 for (cnt = 6000000; cnt && (data == MBS_BUSY); cnt--) {
638 udelay(5);
639 data = RD_MAILBOX_REG(ha, reg, 0);
640 barrier();
641 }
642 } else
643 udelay(10);
644
645 if (!cnt)
646 goto chip_diag_failed;
647
648 /* Check product ID of chip */
649 DEBUG3(printk("scsi(%ld): Checking product ID of chip\n", ha->host_no));
650
651 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
652 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
653 mb[3] = RD_MAILBOX_REG(ha, reg, 3);
654 mb[4] = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 4));
655 if (mb[1] != PROD_ID_1 || (mb[2] != PROD_ID_2 && mb[2] != PROD_ID_2a) ||
656 mb[3] != PROD_ID_3) {
657 qla_printk(KERN_WARNING, ha,
658 "Wrong product ID = 0x%x,0x%x,0x%x\n", mb[1], mb[2], mb[3]);
659
660 goto chip_diag_failed;
661 }
662 ha->product_id[0] = mb[1];
663 ha->product_id[1] = mb[2];
664 ha->product_id[2] = mb[3];
665 ha->product_id[3] = mb[4];
666
667 /* Adjust fw RISC transfer size */
668 if (ha->request_q_length > 1024)
669 ha->fw_transfer_size = REQUEST_ENTRY_SIZE * 1024;
670 else
671 ha->fw_transfer_size = REQUEST_ENTRY_SIZE *
672 ha->request_q_length;
673
674 if (IS_QLA2200(ha) &&
675 RD_MAILBOX_REG(ha, reg, 7) == QLA2200A_RISC_ROM_VER) {
676 /* Limit firmware transfer size with a 2200A */
677 DEBUG3(printk("scsi(%ld): Found QLA2200A chip.\n",
678 ha->host_no));
679
680 ha->device_type |= DT_ISP2200A;
681 ha->fw_transfer_size = 128;
682 }
683
684 /* Wrap Incoming Mailboxes Test. */
685 spin_unlock_irqrestore(&ha->hardware_lock, flags);
686
687 DEBUG3(printk("scsi(%ld): Checking mailboxes.\n", ha->host_no));
688 rval = qla2x00_mbx_reg_test(ha);
689 if (rval) {
690 DEBUG(printk("scsi(%ld): Failed mailbox send register test\n",
691 ha->host_no));
692 qla_printk(KERN_WARNING, ha,
693 "Failed mailbox send register test\n");
694 }
695 else {
696 /* Flag a successful rval */
697 rval = QLA_SUCCESS;
698 }
699 spin_lock_irqsave(&ha->hardware_lock, flags);
700
701 chip_diag_failed:
702 if (rval)
703 DEBUG2_3(printk("scsi(%ld): Chip diagnostics **** FAILED "
704 "****\n", ha->host_no));
705
706 spin_unlock_irqrestore(&ha->hardware_lock, flags);
707
708 return (rval);
709 }
710
711 /**
712 * qla24xx_chip_diag() - Test ISP24xx for proper operation.
713 * @ha: HA context
714 *
715 * Returns 0 on success.
716 */
717 int
718 qla24xx_chip_diag(scsi_qla_host_t *ha)
719 {
720 int rval;
721
722 /* Perform RISC reset. */
723 qla24xx_reset_risc(ha);
724
725 ha->fw_transfer_size = REQUEST_ENTRY_SIZE * 1024;
726
727 rval = qla2x00_mbx_reg_test(ha);
728 if (rval) {
729 DEBUG(printk("scsi(%ld): Failed mailbox send register test\n",
730 ha->host_no));
731 qla_printk(KERN_WARNING, ha,
732 "Failed mailbox send register test\n");
733 } else {
734 /* Flag a successful rval */
735 rval = QLA_SUCCESS;
736 }
737
738 return rval;
739 }
740
741 void
742 qla2x00_alloc_fw_dump(scsi_qla_host_t *ha)
743 {
744 int rval;
745 uint32_t dump_size, fixed_size, mem_size, req_q_size, rsp_q_size,
746 eft_size, fce_size;
747 dma_addr_t tc_dma;
748 void *tc;
749
750 if (ha->fw_dump) {
751 qla_printk(KERN_WARNING, ha,
752 "Firmware dump previously allocated.\n");
753 return;
754 }
755
756 ha->fw_dumped = 0;
757 fixed_size = mem_size = eft_size = fce_size = 0;
758 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
759 fixed_size = sizeof(struct qla2100_fw_dump);
760 } else if (IS_QLA23XX(ha)) {
761 fixed_size = offsetof(struct qla2300_fw_dump, data_ram);
762 mem_size = (ha->fw_memory_size - 0x11000 + 1) *
763 sizeof(uint16_t);
764 } else if (IS_FWI2_CAPABLE(ha)) {
765 fixed_size = IS_QLA25XX(ha) ?
766 offsetof(struct qla25xx_fw_dump, ext_mem):
767 offsetof(struct qla24xx_fw_dump, ext_mem);
768 mem_size = (ha->fw_memory_size - 0x100000 + 1) *
769 sizeof(uint32_t);
770
771 /* Allocate memory for Fibre Channel Event Buffer. */
772 if (!IS_QLA25XX(ha))
773 goto try_eft;
774
775 tc = dma_alloc_coherent(&ha->pdev->dev, FCE_SIZE, &tc_dma,
776 GFP_KERNEL);
777 if (!tc) {
778 qla_printk(KERN_WARNING, ha, "Unable to allocate "
779 "(%d KB) for FCE.\n", FCE_SIZE / 1024);
780 goto try_eft;
781 }
782
783 memset(tc, 0, FCE_SIZE);
784 rval = qla2x00_enable_fce_trace(ha, tc_dma, FCE_NUM_BUFFERS,
785 ha->fce_mb, &ha->fce_bufs);
786 if (rval) {
787 qla_printk(KERN_WARNING, ha, "Unable to initialize "
788 "FCE (%d).\n", rval);
789 dma_free_coherent(&ha->pdev->dev, FCE_SIZE, tc,
790 tc_dma);
791 ha->flags.fce_enabled = 0;
792 goto try_eft;
793 }
794
795 qla_printk(KERN_INFO, ha, "Allocated (%d KB) for FCE...\n",
796 FCE_SIZE / 1024);
797
798 fce_size = sizeof(struct qla2xxx_fce_chain) + EFT_SIZE;
799 ha->flags.fce_enabled = 1;
800 ha->fce_dma = tc_dma;
801 ha->fce = tc;
802 try_eft:
803 /* Allocate memory for Extended Trace Buffer. */
804 tc = dma_alloc_coherent(&ha->pdev->dev, EFT_SIZE, &tc_dma,
805 GFP_KERNEL);
806 if (!tc) {
807 qla_printk(KERN_WARNING, ha, "Unable to allocate "
808 "(%d KB) for EFT.\n", EFT_SIZE / 1024);
809 goto cont_alloc;
810 }
811
812 memset(tc, 0, EFT_SIZE);
813 rval = qla2x00_enable_eft_trace(ha, tc_dma, EFT_NUM_BUFFERS);
814 if (rval) {
815 qla_printk(KERN_WARNING, ha, "Unable to initialize "
816 "EFT (%d).\n", rval);
817 dma_free_coherent(&ha->pdev->dev, EFT_SIZE, tc,
818 tc_dma);
819 goto cont_alloc;
820 }
821
822 qla_printk(KERN_INFO, ha, "Allocated (%d KB) for EFT...\n",
823 EFT_SIZE / 1024);
824
825 eft_size = EFT_SIZE;
826 ha->eft_dma = tc_dma;
827 ha->eft = tc;
828 }
829 cont_alloc:
830 req_q_size = ha->request_q_length * sizeof(request_t);
831 rsp_q_size = ha->response_q_length * sizeof(response_t);
832
833 dump_size = offsetof(struct qla2xxx_fw_dump, isp);
834 dump_size += fixed_size + mem_size + req_q_size + rsp_q_size +
835 eft_size + fce_size;
836
837 ha->fw_dump = vmalloc(dump_size);
838 if (!ha->fw_dump) {
839 qla_printk(KERN_WARNING, ha, "Unable to allocate (%d KB) for "
840 "firmware dump!!!\n", dump_size / 1024);
841
842 if (ha->eft) {
843 dma_free_coherent(&ha->pdev->dev, eft_size, ha->eft,
844 ha->eft_dma);
845 ha->eft = NULL;
846 ha->eft_dma = 0;
847 }
848 return;
849 }
850
851 qla_printk(KERN_INFO, ha, "Allocated (%d KB) for firmware dump...\n",
852 dump_size / 1024);
853
854 ha->fw_dump_len = dump_size;
855 ha->fw_dump->signature[0] = 'Q';
856 ha->fw_dump->signature[1] = 'L';
857 ha->fw_dump->signature[2] = 'G';
858 ha->fw_dump->signature[3] = 'C';
859 ha->fw_dump->version = __constant_htonl(1);
860
861 ha->fw_dump->fixed_size = htonl(fixed_size);
862 ha->fw_dump->mem_size = htonl(mem_size);
863 ha->fw_dump->req_q_size = htonl(req_q_size);
864 ha->fw_dump->rsp_q_size = htonl(rsp_q_size);
865
866 ha->fw_dump->eft_size = htonl(eft_size);
867 ha->fw_dump->eft_addr_l = htonl(LSD(ha->eft_dma));
868 ha->fw_dump->eft_addr_h = htonl(MSD(ha->eft_dma));
869
870 ha->fw_dump->header_size =
871 htonl(offsetof(struct qla2xxx_fw_dump, isp));
872 }
873
874 /**
875 * qla2x00_resize_request_q() - Resize request queue given available ISP memory.
876 * @ha: HA context
877 *
878 * Returns 0 on success.
879 */
880 static void
881 qla2x00_resize_request_q(scsi_qla_host_t *ha)
882 {
883 int rval;
884 uint16_t fw_iocb_cnt = 0;
885 uint16_t request_q_length = REQUEST_ENTRY_CNT_2XXX_EXT_MEM;
886 dma_addr_t request_dma;
887 request_t *request_ring;
888
889 /* Valid only on recent ISPs. */
890 if (IS_QLA2100(ha) || IS_QLA2200(ha))
891 return;
892
893 /* Retrieve IOCB counts available to the firmware. */
894 rval = qla2x00_get_resource_cnts(ha, NULL, NULL, NULL, &fw_iocb_cnt,
895 &ha->max_npiv_vports);
896 if (rval)
897 return;
898 /* No point in continuing if current settings are sufficient. */
899 if (fw_iocb_cnt < 1024)
900 return;
901 if (ha->request_q_length >= request_q_length)
902 return;
903
904 /* Attempt to claim larger area for request queue. */
905 request_ring = dma_alloc_coherent(&ha->pdev->dev,
906 (request_q_length + 1) * sizeof(request_t), &request_dma,
907 GFP_KERNEL);
908 if (request_ring == NULL)
909 return;
910
911 /* Resize successful, report extensions. */
912 qla_printk(KERN_INFO, ha, "Extended memory detected (%d KB)...\n",
913 (ha->fw_memory_size + 1) / 1024);
914 qla_printk(KERN_INFO, ha, "Resizing request queue depth "
915 "(%d -> %d)...\n", ha->request_q_length, request_q_length);
916
917 /* Clear old allocations. */
918 dma_free_coherent(&ha->pdev->dev,
919 (ha->request_q_length + 1) * sizeof(request_t), ha->request_ring,
920 ha->request_dma);
921
922 /* Begin using larger queue. */
923 ha->request_q_length = request_q_length;
924 ha->request_ring = request_ring;
925 ha->request_dma = request_dma;
926 }
927
928 /**
929 * qla2x00_setup_chip() - Load and start RISC firmware.
930 * @ha: HA context
931 *
932 * Returns 0 on success.
933 */
934 static int
935 qla2x00_setup_chip(scsi_qla_host_t *ha)
936 {
937 int rval;
938 uint32_t srisc_address = 0;
939 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
940 unsigned long flags;
941
942 if (!IS_FWI2_CAPABLE(ha) && !IS_QLA2100(ha) && !IS_QLA2200(ha)) {
943 /* Disable SRAM, Instruction RAM and GP RAM parity. */
944 spin_lock_irqsave(&ha->hardware_lock, flags);
945 WRT_REG_WORD(&reg->hccr, (HCCR_ENABLE_PARITY + 0x0));
946 RD_REG_WORD(&reg->hccr);
947 spin_unlock_irqrestore(&ha->hardware_lock, flags);
948 }
949
950 /* Load firmware sequences */
951 rval = ha->isp_ops->load_risc(ha, &srisc_address);
952 if (rval == QLA_SUCCESS) {
953 DEBUG(printk("scsi(%ld): Verifying Checksum of loaded RISC "
954 "code.\n", ha->host_no));
955
956 rval = qla2x00_verify_checksum(ha, srisc_address);
957 if (rval == QLA_SUCCESS) {
958 /* Start firmware execution. */
959 DEBUG(printk("scsi(%ld): Checksum OK, start "
960 "firmware.\n", ha->host_no));
961
962 rval = qla2x00_execute_fw(ha, srisc_address);
963 /* Retrieve firmware information. */
964 if (rval == QLA_SUCCESS && ha->fw_major_version == 0) {
965 qla2x00_get_fw_version(ha,
966 &ha->fw_major_version,
967 &ha->fw_minor_version,
968 &ha->fw_subminor_version,
969 &ha->fw_attributes, &ha->fw_memory_size);
970 qla2x00_resize_request_q(ha);
971 ha->flags.npiv_supported = 0;
972 if ((IS_QLA24XX(ha) || IS_QLA25XX(ha)) &&
973 (ha->fw_attributes & BIT_2)) {
974 ha->flags.npiv_supported = 1;
975 if ((!ha->max_npiv_vports) ||
976 ((ha->max_npiv_vports + 1) %
977 MIN_MULTI_ID_FABRIC))
978 ha->max_npiv_vports =
979 MIN_MULTI_ID_FABRIC - 1;
980 }
981
982 if (ql2xallocfwdump)
983 qla2x00_alloc_fw_dump(ha);
984 }
985 } else {
986 DEBUG2(printk(KERN_INFO
987 "scsi(%ld): ISP Firmware failed checksum.\n",
988 ha->host_no));
989 }
990 }
991
992 if (!IS_FWI2_CAPABLE(ha) && !IS_QLA2100(ha) && !IS_QLA2200(ha)) {
993 /* Enable proper parity. */
994 spin_lock_irqsave(&ha->hardware_lock, flags);
995 if (IS_QLA2300(ha))
996 /* SRAM parity */
997 WRT_REG_WORD(&reg->hccr, HCCR_ENABLE_PARITY + 0x1);
998 else
999 /* SRAM, Instruction RAM and GP RAM parity */
1000 WRT_REG_WORD(&reg->hccr, HCCR_ENABLE_PARITY + 0x7);
1001 RD_REG_WORD(&reg->hccr);
1002 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1003 }
1004
1005 if (rval) {
1006 DEBUG2_3(printk("scsi(%ld): Setup chip **** FAILED ****.\n",
1007 ha->host_no));
1008 }
1009
1010 return (rval);
1011 }
1012
1013 /**
1014 * qla2x00_init_response_q_entries() - Initializes response queue entries.
1015 * @ha: HA context
1016 *
1017 * Beginning of request ring has initialization control block already built
1018 * by nvram config routine.
1019 *
1020 * Returns 0 on success.
1021 */
1022 static void
1023 qla2x00_init_response_q_entries(scsi_qla_host_t *ha)
1024 {
1025 uint16_t cnt;
1026 response_t *pkt;
1027
1028 pkt = ha->response_ring_ptr;
1029 for (cnt = 0; cnt < ha->response_q_length; cnt++) {
1030 pkt->signature = RESPONSE_PROCESSED;
1031 pkt++;
1032 }
1033
1034 }
1035
1036 /**
1037 * qla2x00_update_fw_options() - Read and process firmware options.
1038 * @ha: HA context
1039 *
1040 * Returns 0 on success.
1041 */
1042 void
1043 qla2x00_update_fw_options(scsi_qla_host_t *ha)
1044 {
1045 uint16_t swing, emphasis, tx_sens, rx_sens;
1046
1047 memset(ha->fw_options, 0, sizeof(ha->fw_options));
1048 qla2x00_get_fw_options(ha, ha->fw_options);
1049
1050 if (IS_QLA2100(ha) || IS_QLA2200(ha))
1051 return;
1052
1053 /* Serial Link options. */
1054 DEBUG3(printk("scsi(%ld): Serial link options:\n",
1055 ha->host_no));
1056 DEBUG3(qla2x00_dump_buffer((uint8_t *)&ha->fw_seriallink_options,
1057 sizeof(ha->fw_seriallink_options)));
1058
1059 ha->fw_options[1] &= ~FO1_SET_EMPHASIS_SWING;
1060 if (ha->fw_seriallink_options[3] & BIT_2) {
1061 ha->fw_options[1] |= FO1_SET_EMPHASIS_SWING;
1062
1063 /* 1G settings */
1064 swing = ha->fw_seriallink_options[2] & (BIT_2 | BIT_1 | BIT_0);
1065 emphasis = (ha->fw_seriallink_options[2] &
1066 (BIT_4 | BIT_3)) >> 3;
1067 tx_sens = ha->fw_seriallink_options[0] &
1068 (BIT_3 | BIT_2 | BIT_1 | BIT_0);
1069 rx_sens = (ha->fw_seriallink_options[0] &
1070 (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
1071 ha->fw_options[10] = (emphasis << 14) | (swing << 8);
1072 if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
1073 if (rx_sens == 0x0)
1074 rx_sens = 0x3;
1075 ha->fw_options[10] |= (tx_sens << 4) | rx_sens;
1076 } else if (IS_QLA2322(ha) || IS_QLA6322(ha))
1077 ha->fw_options[10] |= BIT_5 |
1078 ((rx_sens & (BIT_1 | BIT_0)) << 2) |
1079 (tx_sens & (BIT_1 | BIT_0));
1080
1081 /* 2G settings */
1082 swing = (ha->fw_seriallink_options[2] &
1083 (BIT_7 | BIT_6 | BIT_5)) >> 5;
1084 emphasis = ha->fw_seriallink_options[3] & (BIT_1 | BIT_0);
1085 tx_sens = ha->fw_seriallink_options[1] &
1086 (BIT_3 | BIT_2 | BIT_1 | BIT_0);
1087 rx_sens = (ha->fw_seriallink_options[1] &
1088 (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
1089 ha->fw_options[11] = (emphasis << 14) | (swing << 8);
1090 if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
1091 if (rx_sens == 0x0)
1092 rx_sens = 0x3;
1093 ha->fw_options[11] |= (tx_sens << 4) | rx_sens;
1094 } else if (IS_QLA2322(ha) || IS_QLA6322(ha))
1095 ha->fw_options[11] |= BIT_5 |
1096 ((rx_sens & (BIT_1 | BIT_0)) << 2) |
1097 (tx_sens & (BIT_1 | BIT_0));
1098 }
1099
1100 /* FCP2 options. */
1101 /* Return command IOCBs without waiting for an ABTS to complete. */
1102 ha->fw_options[3] |= BIT_13;
1103
1104 /* LED scheme. */
1105 if (ha->flags.enable_led_scheme)
1106 ha->fw_options[2] |= BIT_12;
1107
1108 /* Detect ISP6312. */
1109 if (IS_QLA6312(ha))
1110 ha->fw_options[2] |= BIT_13;
1111
1112 /* Update firmware options. */
1113 qla2x00_set_fw_options(ha, ha->fw_options);
1114 }
1115
1116 void
1117 qla24xx_update_fw_options(scsi_qla_host_t *ha)
1118 {
1119 int rval;
1120
1121 /* Update Serial Link options. */
1122 if ((le16_to_cpu(ha->fw_seriallink_options24[0]) & BIT_0) == 0)
1123 return;
1124
1125 rval = qla2x00_set_serdes_params(ha,
1126 le16_to_cpu(ha->fw_seriallink_options24[1]),
1127 le16_to_cpu(ha->fw_seriallink_options24[2]),
1128 le16_to_cpu(ha->fw_seriallink_options24[3]));
1129 if (rval != QLA_SUCCESS) {
1130 qla_printk(KERN_WARNING, ha,
1131 "Unable to update Serial Link options (%x).\n", rval);
1132 }
1133 }
1134
1135 void
1136 qla2x00_config_rings(struct scsi_qla_host *ha)
1137 {
1138 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1139
1140 /* Setup ring parameters in initialization control block. */
1141 ha->init_cb->request_q_outpointer = __constant_cpu_to_le16(0);
1142 ha->init_cb->response_q_inpointer = __constant_cpu_to_le16(0);
1143 ha->init_cb->request_q_length = cpu_to_le16(ha->request_q_length);
1144 ha->init_cb->response_q_length = cpu_to_le16(ha->response_q_length);
1145 ha->init_cb->request_q_address[0] = cpu_to_le32(LSD(ha->request_dma));
1146 ha->init_cb->request_q_address[1] = cpu_to_le32(MSD(ha->request_dma));
1147 ha->init_cb->response_q_address[0] = cpu_to_le32(LSD(ha->response_dma));
1148 ha->init_cb->response_q_address[1] = cpu_to_le32(MSD(ha->response_dma));
1149
1150 WRT_REG_WORD(ISP_REQ_Q_IN(ha, reg), 0);
1151 WRT_REG_WORD(ISP_REQ_Q_OUT(ha, reg), 0);
1152 WRT_REG_WORD(ISP_RSP_Q_IN(ha, reg), 0);
1153 WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), 0);
1154 RD_REG_WORD(ISP_RSP_Q_OUT(ha, reg)); /* PCI Posting. */
1155 }
1156
1157 void
1158 qla24xx_config_rings(struct scsi_qla_host *ha)
1159 {
1160 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1161 struct init_cb_24xx *icb;
1162
1163 /* Setup ring parameters in initialization control block. */
1164 icb = (struct init_cb_24xx *)ha->init_cb;
1165 icb->request_q_outpointer = __constant_cpu_to_le16(0);
1166 icb->response_q_inpointer = __constant_cpu_to_le16(0);
1167 icb->request_q_length = cpu_to_le16(ha->request_q_length);
1168 icb->response_q_length = cpu_to_le16(ha->response_q_length);
1169 icb->request_q_address[0] = cpu_to_le32(LSD(ha->request_dma));
1170 icb->request_q_address[1] = cpu_to_le32(MSD(ha->request_dma));
1171 icb->response_q_address[0] = cpu_to_le32(LSD(ha->response_dma));
1172 icb->response_q_address[1] = cpu_to_le32(MSD(ha->response_dma));
1173
1174 WRT_REG_DWORD(&reg->req_q_in, 0);
1175 WRT_REG_DWORD(&reg->req_q_out, 0);
1176 WRT_REG_DWORD(&reg->rsp_q_in, 0);
1177 WRT_REG_DWORD(&reg->rsp_q_out, 0);
1178 RD_REG_DWORD(&reg->rsp_q_out);
1179 }
1180
1181 /**
1182 * qla2x00_init_rings() - Initializes firmware.
1183 * @ha: HA context
1184 *
1185 * Beginning of request ring has initialization control block already built
1186 * by nvram config routine.
1187 *
1188 * Returns 0 on success.
1189 */
1190 static int
1191 qla2x00_init_rings(scsi_qla_host_t *ha)
1192 {
1193 int rval;
1194 unsigned long flags = 0;
1195 int cnt;
1196 struct mid_init_cb_24xx *mid_init_cb =
1197 (struct mid_init_cb_24xx *) ha->init_cb;
1198
1199 spin_lock_irqsave(&ha->hardware_lock, flags);
1200
1201 /* Clear outstanding commands array. */
1202 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++)
1203 ha->outstanding_cmds[cnt] = NULL;
1204
1205 ha->current_outstanding_cmd = 0;
1206
1207 /* Clear RSCN queue. */
1208 ha->rscn_in_ptr = 0;
1209 ha->rscn_out_ptr = 0;
1210
1211 /* Initialize firmware. */
1212 ha->request_ring_ptr = ha->request_ring;
1213 ha->req_ring_index = 0;
1214 ha->req_q_cnt = ha->request_q_length;
1215 ha->response_ring_ptr = ha->response_ring;
1216 ha->rsp_ring_index = 0;
1217
1218 /* Initialize response queue entries */
1219 qla2x00_init_response_q_entries(ha);
1220
1221 ha->isp_ops->config_rings(ha);
1222
1223 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1224
1225 /* Update any ISP specific firmware options before initialization. */
1226 ha->isp_ops->update_fw_options(ha);
1227
1228 DEBUG(printk("scsi(%ld): Issue init firmware.\n", ha->host_no));
1229
1230 if (ha->flags.npiv_supported)
1231 mid_init_cb->count = cpu_to_le16(ha->max_npiv_vports);
1232
1233 mid_init_cb->options = __constant_cpu_to_le16(BIT_1);
1234
1235 rval = qla2x00_init_firmware(ha, ha->init_cb_size);
1236 if (rval) {
1237 DEBUG2_3(printk("scsi(%ld): Init firmware **** FAILED ****.\n",
1238 ha->host_no));
1239 } else {
1240 DEBUG3(printk("scsi(%ld): Init firmware -- success.\n",
1241 ha->host_no));
1242 }
1243
1244 return (rval);
1245 }
1246
1247 /**
1248 * qla2x00_fw_ready() - Waits for firmware ready.
1249 * @ha: HA context
1250 *
1251 * Returns 0 on success.
1252 */
1253 static int
1254 qla2x00_fw_ready(scsi_qla_host_t *ha)
1255 {
1256 int rval;
1257 unsigned long wtime, mtime, cs84xx_time;
1258 uint16_t min_wait; /* Minimum wait time if loop is down */
1259 uint16_t wait_time; /* Wait time if loop is coming ready */
1260 uint16_t state[3];
1261
1262 rval = QLA_SUCCESS;
1263
1264 /* 20 seconds for loop down. */
1265 min_wait = 20;
1266
1267 /*
1268 * Firmware should take at most one RATOV to login, plus 5 seconds for
1269 * our own processing.
1270 */
1271 if ((wait_time = (ha->retry_count*ha->login_timeout) + 5) < min_wait) {
1272 wait_time = min_wait;
1273 }
1274
1275 /* Min wait time if loop down */
1276 mtime = jiffies + (min_wait * HZ);
1277
1278 /* wait time before firmware ready */
1279 wtime = jiffies + (wait_time * HZ);
1280
1281 /* Wait for ISP to finish LIP */
1282 if (!ha->flags.init_done)
1283 qla_printk(KERN_INFO, ha, "Waiting for LIP to complete...\n");
1284
1285 DEBUG3(printk("scsi(%ld): Waiting for LIP to complete...\n",
1286 ha->host_no));
1287
1288 do {
1289 rval = qla2x00_get_firmware_state(ha, state);
1290 if (rval == QLA_SUCCESS) {
1291 if (state[0] < FSTATE_LOSS_OF_SYNC) {
1292 ha->device_flags &= ~DFLG_NO_CABLE;
1293 }
1294 if (IS_QLA84XX(ha) && state[0] != FSTATE_READY) {
1295 DEBUG16(printk("scsi(%ld): fw_state=%x "
1296 "84xx=%x.\n", ha->host_no, state[0],
1297 state[2]));
1298 if ((state[2] & FSTATE_LOGGED_IN) &&
1299 (state[2] & FSTATE_WAITING_FOR_VERIFY)) {
1300 DEBUG16(printk("scsi(%ld): Sending "
1301 "verify iocb.\n", ha->host_no));
1302
1303 cs84xx_time = jiffies;
1304 rval = qla84xx_init_chip(ha);
1305 if (rval != QLA_SUCCESS)
1306 break;
1307
1308 /* Add time taken to initialize. */
1309 cs84xx_time = jiffies - cs84xx_time;
1310 wtime += cs84xx_time;
1311 mtime += cs84xx_time;
1312 DEBUG16(printk("scsi(%ld): Increasing "
1313 "wait time by %ld. New time %ld\n",
1314 ha->host_no, cs84xx_time, wtime));
1315 }
1316 } else if (state[0] == FSTATE_READY) {
1317 DEBUG(printk("scsi(%ld): F/W Ready - OK \n",
1318 ha->host_no));
1319
1320 qla2x00_get_retry_cnt(ha, &ha->retry_count,
1321 &ha->login_timeout, &ha->r_a_tov);
1322
1323 rval = QLA_SUCCESS;
1324 break;
1325 }
1326
1327 rval = QLA_FUNCTION_FAILED;
1328
1329 if (atomic_read(&ha->loop_down_timer) &&
1330 state[0] != FSTATE_READY) {
1331 /* Loop down. Timeout on min_wait for states
1332 * other than Wait for Login.
1333 */
1334 if (time_after_eq(jiffies, mtime)) {
1335 qla_printk(KERN_INFO, ha,
1336 "Cable is unplugged...\n");
1337
1338 ha->device_flags |= DFLG_NO_CABLE;
1339 break;
1340 }
1341 }
1342 } else {
1343 /* Mailbox cmd failed. Timeout on min_wait. */
1344 if (time_after_eq(jiffies, mtime))
1345 break;
1346 }
1347
1348 if (time_after_eq(jiffies, wtime))
1349 break;
1350
1351 /* Delay for a while */
1352 msleep(500);
1353
1354 DEBUG3(printk("scsi(%ld): fw_state=%x curr time=%lx.\n",
1355 ha->host_no, state[0], jiffies));
1356 } while (1);
1357
1358 DEBUG(printk("scsi(%ld): fw_state=%x curr time=%lx.\n",
1359 ha->host_no, state[0], jiffies));
1360
1361 if (rval) {
1362 DEBUG2_3(printk("scsi(%ld): Firmware ready **** FAILED ****.\n",
1363 ha->host_no));
1364 }
1365
1366 return (rval);
1367 }
1368
1369 /*
1370 * qla2x00_configure_hba
1371 * Setup adapter context.
1372 *
1373 * Input:
1374 * ha = adapter state pointer.
1375 *
1376 * Returns:
1377 * 0 = success
1378 *
1379 * Context:
1380 * Kernel context.
1381 */
1382 static int
1383 qla2x00_configure_hba(scsi_qla_host_t *ha)
1384 {
1385 int rval;
1386 uint16_t loop_id;
1387 uint16_t topo;
1388 uint16_t sw_cap;
1389 uint8_t al_pa;
1390 uint8_t area;
1391 uint8_t domain;
1392 char connect_type[22];
1393
1394 /* Get host addresses. */
1395 rval = qla2x00_get_adapter_id(ha,
1396 &loop_id, &al_pa, &area, &domain, &topo, &sw_cap);
1397 if (rval != QLA_SUCCESS) {
1398 if (LOOP_TRANSITION(ha) || atomic_read(&ha->loop_down_timer) ||
1399 (rval == QLA_COMMAND_ERROR && loop_id == 0x7)) {
1400 DEBUG2(printk("%s(%ld) Loop is in a transition state\n",
1401 __func__, ha->host_no));
1402 } else {
1403 qla_printk(KERN_WARNING, ha,
1404 "ERROR -- Unable to get host loop ID.\n");
1405 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
1406 }
1407 return (rval);
1408 }
1409
1410 if (topo == 4) {
1411 qla_printk(KERN_INFO, ha,
1412 "Cannot get topology - retrying.\n");
1413 return (QLA_FUNCTION_FAILED);
1414 }
1415
1416 ha->loop_id = loop_id;
1417
1418 /* initialize */
1419 ha->min_external_loopid = SNS_FIRST_LOOP_ID;
1420 ha->operating_mode = LOOP;
1421 ha->switch_cap = 0;
1422
1423 switch (topo) {
1424 case 0:
1425 DEBUG3(printk("scsi(%ld): HBA in NL topology.\n",
1426 ha->host_no));
1427 ha->current_topology = ISP_CFG_NL;
1428 strcpy(connect_type, "(Loop)");
1429 break;
1430
1431 case 1:
1432 DEBUG3(printk("scsi(%ld): HBA in FL topology.\n",
1433 ha->host_no));
1434 ha->switch_cap = sw_cap;
1435 ha->current_topology = ISP_CFG_FL;
1436 strcpy(connect_type, "(FL_Port)");
1437 break;
1438
1439 case 2:
1440 DEBUG3(printk("scsi(%ld): HBA in N P2P topology.\n",
1441 ha->host_no));
1442 ha->operating_mode = P2P;
1443 ha->current_topology = ISP_CFG_N;
1444 strcpy(connect_type, "(N_Port-to-N_Port)");
1445 break;
1446
1447 case 3:
1448 DEBUG3(printk("scsi(%ld): HBA in F P2P topology.\n",
1449 ha->host_no));
1450 ha->switch_cap = sw_cap;
1451 ha->operating_mode = P2P;
1452 ha->current_topology = ISP_CFG_F;
1453 strcpy(connect_type, "(F_Port)");
1454 break;
1455
1456 default:
1457 DEBUG3(printk("scsi(%ld): HBA in unknown topology %x. "
1458 "Using NL.\n",
1459 ha->host_no, topo));
1460 ha->current_topology = ISP_CFG_NL;
1461 strcpy(connect_type, "(Loop)");
1462 break;
1463 }
1464
1465 /* Save Host port and loop ID. */
1466 /* byte order - Big Endian */
1467 ha->d_id.b.domain = domain;
1468 ha->d_id.b.area = area;
1469 ha->d_id.b.al_pa = al_pa;
1470
1471 if (!ha->flags.init_done)
1472 qla_printk(KERN_INFO, ha,
1473 "Topology - %s, Host Loop address 0x%x\n",
1474 connect_type, ha->loop_id);
1475
1476 if (rval) {
1477 DEBUG2_3(printk("scsi(%ld): FAILED.\n", ha->host_no));
1478 } else {
1479 DEBUG3(printk("scsi(%ld): exiting normally.\n", ha->host_no));
1480 }
1481
1482 return(rval);
1483 }
1484
1485 static inline void
1486 qla2x00_set_model_info(scsi_qla_host_t *ha, uint8_t *model, size_t len, char *def)
1487 {
1488 char *st, *en;
1489 uint16_t index;
1490
1491 if (memcmp(model, BINZERO, len) != 0) {
1492 strncpy(ha->model_number, model, len);
1493 st = en = ha->model_number;
1494 en += len - 1;
1495 while (en > st) {
1496 if (*en != 0x20 && *en != 0x00)
1497 break;
1498 *en-- = '\0';
1499 }
1500
1501 index = (ha->pdev->subsystem_device & 0xff);
1502 if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_QLOGIC &&
1503 index < QLA_MODEL_NAMES)
1504 strncpy(ha->model_desc,
1505 qla2x00_model_name[index * 2 + 1],
1506 sizeof(ha->model_desc) - 1);
1507 } else {
1508 index = (ha->pdev->subsystem_device & 0xff);
1509 if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_QLOGIC &&
1510 index < QLA_MODEL_NAMES) {
1511 strcpy(ha->model_number,
1512 qla2x00_model_name[index * 2]);
1513 strncpy(ha->model_desc,
1514 qla2x00_model_name[index * 2 + 1],
1515 sizeof(ha->model_desc) - 1);
1516 } else {
1517 strcpy(ha->model_number, def);
1518 }
1519 }
1520 if (IS_FWI2_CAPABLE(ha))
1521 qla2xxx_get_vpd_field(ha, "\x82", ha->model_desc,
1522 sizeof(ha->model_desc));
1523 }
1524
1525 /* On sparc systems, obtain port and node WWN from firmware
1526 * properties.
1527 */
1528 static void qla2xxx_nvram_wwn_from_ofw(scsi_qla_host_t *ha, nvram_t *nv)
1529 {
1530 #ifdef CONFIG_SPARC
1531 struct pci_dev *pdev = ha->pdev;
1532 struct device_node *dp = pci_device_to_OF_node(pdev);
1533 const u8 *val;
1534 int len;
1535
1536 val = of_get_property(dp, "port-wwn", &len);
1537 if (val && len >= WWN_SIZE)
1538 memcpy(nv->port_name, val, WWN_SIZE);
1539
1540 val = of_get_property(dp, "node-wwn", &len);
1541 if (val && len >= WWN_SIZE)
1542 memcpy(nv->node_name, val, WWN_SIZE);
1543 #endif
1544 }
1545
1546 /*
1547 * NVRAM configuration for ISP 2xxx
1548 *
1549 * Input:
1550 * ha = adapter block pointer.
1551 *
1552 * Output:
1553 * initialization control block in response_ring
1554 * host adapters parameters in host adapter block
1555 *
1556 * Returns:
1557 * 0 = success.
1558 */
1559 int
1560 qla2x00_nvram_config(scsi_qla_host_t *ha)
1561 {
1562 int rval;
1563 uint8_t chksum = 0;
1564 uint16_t cnt;
1565 uint8_t *dptr1, *dptr2;
1566 init_cb_t *icb = ha->init_cb;
1567 nvram_t *nv = ha->nvram;
1568 uint8_t *ptr = ha->nvram;
1569 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1570
1571 rval = QLA_SUCCESS;
1572
1573 /* Determine NVRAM starting address. */
1574 ha->nvram_size = sizeof(nvram_t);
1575 ha->nvram_base = 0;
1576 if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA2300(ha))
1577 if ((RD_REG_WORD(&reg->ctrl_status) >> 14) == 1)
1578 ha->nvram_base = 0x80;
1579
1580 /* Get NVRAM data and calculate checksum. */
1581 ha->isp_ops->read_nvram(ha, ptr, ha->nvram_base, ha->nvram_size);
1582 for (cnt = 0, chksum = 0; cnt < ha->nvram_size; cnt++)
1583 chksum += *ptr++;
1584
1585 DEBUG5(printk("scsi(%ld): Contents of NVRAM\n", ha->host_no));
1586 DEBUG5(qla2x00_dump_buffer((uint8_t *)nv, ha->nvram_size));
1587
1588 /* Bad NVRAM data, set defaults parameters. */
1589 if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' ||
1590 nv->id[2] != 'P' || nv->id[3] != ' ' || nv->nvram_version < 1) {
1591 /* Reset NVRAM data. */
1592 qla_printk(KERN_WARNING, ha, "Inconsistent NVRAM detected: "
1593 "checksum=0x%x id=%c version=0x%x.\n", chksum, nv->id[0],
1594 nv->nvram_version);
1595 qla_printk(KERN_WARNING, ha, "Falling back to functioning (yet "
1596 "invalid -- WWPN) defaults.\n");
1597
1598 if (chksum)
1599 qla2xxx_hw_event_log(ha, HW_EVENT_NVRAM_CHKSUM_ERR, 0,
1600 MSW(chksum), LSW(chksum));
1601
1602 /*
1603 * Set default initialization control block.
1604 */
1605 memset(nv, 0, ha->nvram_size);
1606 nv->parameter_block_version = ICB_VERSION;
1607
1608 if (IS_QLA23XX(ha)) {
1609 nv->firmware_options[0] = BIT_2 | BIT_1;
1610 nv->firmware_options[1] = BIT_7 | BIT_5;
1611 nv->add_firmware_options[0] = BIT_5;
1612 nv->add_firmware_options[1] = BIT_5 | BIT_4;
1613 nv->frame_payload_size = __constant_cpu_to_le16(2048);
1614 nv->special_options[1] = BIT_7;
1615 } else if (IS_QLA2200(ha)) {
1616 nv->firmware_options[0] = BIT_2 | BIT_1;
1617 nv->firmware_options[1] = BIT_7 | BIT_5;
1618 nv->add_firmware_options[0] = BIT_5;
1619 nv->add_firmware_options[1] = BIT_5 | BIT_4;
1620 nv->frame_payload_size = __constant_cpu_to_le16(1024);
1621 } else if (IS_QLA2100(ha)) {
1622 nv->firmware_options[0] = BIT_3 | BIT_1;
1623 nv->firmware_options[1] = BIT_5;
1624 nv->frame_payload_size = __constant_cpu_to_le16(1024);
1625 }
1626
1627 nv->max_iocb_allocation = __constant_cpu_to_le16(256);
1628 nv->execution_throttle = __constant_cpu_to_le16(16);
1629 nv->retry_count = 8;
1630 nv->retry_delay = 1;
1631
1632 nv->port_name[0] = 33;
1633 nv->port_name[3] = 224;
1634 nv->port_name[4] = 139;
1635
1636 qla2xxx_nvram_wwn_from_ofw(ha, nv);
1637
1638 nv->login_timeout = 4;
1639
1640 /*
1641 * Set default host adapter parameters
1642 */
1643 nv->host_p[1] = BIT_2;
1644 nv->reset_delay = 5;
1645 nv->port_down_retry_count = 8;
1646 nv->max_luns_per_target = __constant_cpu_to_le16(8);
1647 nv->link_down_timeout = 60;
1648
1649 rval = 1;
1650 }
1651
1652 #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
1653 /*
1654 * The SN2 does not provide BIOS emulation which means you can't change
1655 * potentially bogus BIOS settings. Force the use of default settings
1656 * for link rate and frame size. Hope that the rest of the settings
1657 * are valid.
1658 */
1659 if (ia64_platform_is("sn2")) {
1660 nv->frame_payload_size = __constant_cpu_to_le16(2048);
1661 if (IS_QLA23XX(ha))
1662 nv->special_options[1] = BIT_7;
1663 }
1664 #endif
1665
1666 /* Reset Initialization control block */
1667 memset(icb, 0, ha->init_cb_size);
1668
1669 /*
1670 * Setup driver NVRAM options.
1671 */
1672 nv->firmware_options[0] |= (BIT_6 | BIT_1);
1673 nv->firmware_options[0] &= ~(BIT_5 | BIT_4);
1674 nv->firmware_options[1] |= (BIT_5 | BIT_0);
1675 nv->firmware_options[1] &= ~BIT_4;
1676
1677 if (IS_QLA23XX(ha)) {
1678 nv->firmware_options[0] |= BIT_2;
1679 nv->firmware_options[0] &= ~BIT_3;
1680 nv->add_firmware_options[1] |= BIT_5 | BIT_4;
1681
1682 if (IS_QLA2300(ha)) {
1683 if (ha->fb_rev == FPM_2310) {
1684 strcpy(ha->model_number, "QLA2310");
1685 } else {
1686 strcpy(ha->model_number, "QLA2300");
1687 }
1688 } else {
1689 qla2x00_set_model_info(ha, nv->model_number,
1690 sizeof(nv->model_number), "QLA23xx");
1691 }
1692 } else if (IS_QLA2200(ha)) {
1693 nv->firmware_options[0] |= BIT_2;
1694 /*
1695 * 'Point-to-point preferred, else loop' is not a safe
1696 * connection mode setting.
1697 */
1698 if ((nv->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) ==
1699 (BIT_5 | BIT_4)) {
1700 /* Force 'loop preferred, else point-to-point'. */
1701 nv->add_firmware_options[0] &= ~(BIT_6 | BIT_5 | BIT_4);
1702 nv->add_firmware_options[0] |= BIT_5;
1703 }
1704 strcpy(ha->model_number, "QLA22xx");
1705 } else /*if (IS_QLA2100(ha))*/ {
1706 strcpy(ha->model_number, "QLA2100");
1707 }
1708
1709 /*
1710 * Copy over NVRAM RISC parameter block to initialization control block.
1711 */
1712 dptr1 = (uint8_t *)icb;
1713 dptr2 = (uint8_t *)&nv->parameter_block_version;
1714 cnt = (uint8_t *)&icb->request_q_outpointer - (uint8_t *)&icb->version;
1715 while (cnt--)
1716 *dptr1++ = *dptr2++;
1717
1718 /* Copy 2nd half. */
1719 dptr1 = (uint8_t *)icb->add_firmware_options;
1720 cnt = (uint8_t *)icb->reserved_3 - (uint8_t *)icb->add_firmware_options;
1721 while (cnt--)
1722 *dptr1++ = *dptr2++;
1723
1724 /* Use alternate WWN? */
1725 if (nv->host_p[1] & BIT_7) {
1726 memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
1727 memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
1728 }
1729
1730 /* Prepare nodename */
1731 if ((icb->firmware_options[1] & BIT_6) == 0) {
1732 /*
1733 * Firmware will apply the following mask if the nodename was
1734 * not provided.
1735 */
1736 memcpy(icb->node_name, icb->port_name, WWN_SIZE);
1737 icb->node_name[0] &= 0xF0;
1738 }
1739
1740 /*
1741 * Set host adapter parameters.
1742 */
1743 if (nv->host_p[0] & BIT_7)
1744 ql2xextended_error_logging = 1;
1745 ha->flags.disable_risc_code_load = ((nv->host_p[0] & BIT_4) ? 1 : 0);
1746 /* Always load RISC code on non ISP2[12]00 chips. */
1747 if (!IS_QLA2100(ha) && !IS_QLA2200(ha))
1748 ha->flags.disable_risc_code_load = 0;
1749 ha->flags.enable_lip_reset = ((nv->host_p[1] & BIT_1) ? 1 : 0);
1750 ha->flags.enable_lip_full_login = ((nv->host_p[1] & BIT_2) ? 1 : 0);
1751 ha->flags.enable_target_reset = ((nv->host_p[1] & BIT_3) ? 1 : 0);
1752 ha->flags.enable_led_scheme = (nv->special_options[1] & BIT_4) ? 1 : 0;
1753 ha->flags.disable_serdes = 0;
1754
1755 ha->operating_mode =
1756 (icb->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) >> 4;
1757
1758 memcpy(ha->fw_seriallink_options, nv->seriallink_options,
1759 sizeof(ha->fw_seriallink_options));
1760
1761 /* save HBA serial number */
1762 ha->serial0 = icb->port_name[5];
1763 ha->serial1 = icb->port_name[6];
1764 ha->serial2 = icb->port_name[7];
1765 ha->node_name = icb->node_name;
1766 ha->port_name = icb->port_name;
1767
1768 icb->execution_throttle = __constant_cpu_to_le16(0xFFFF);
1769
1770 ha->retry_count = nv->retry_count;
1771
1772 /* Set minimum login_timeout to 4 seconds. */
1773 if (nv->login_timeout < ql2xlogintimeout)
1774 nv->login_timeout = ql2xlogintimeout;
1775 if (nv->login_timeout < 4)
1776 nv->login_timeout = 4;
1777 ha->login_timeout = nv->login_timeout;
1778 icb->login_timeout = nv->login_timeout;
1779
1780 /* Set minimum RATOV to 100 tenths of a second. */
1781 ha->r_a_tov = 100;
1782
1783 ha->loop_reset_delay = nv->reset_delay;
1784
1785 /* Link Down Timeout = 0:
1786 *
1787 * When Port Down timer expires we will start returning
1788 * I/O's to OS with "DID_NO_CONNECT".
1789 *
1790 * Link Down Timeout != 0:
1791 *
1792 * The driver waits for the link to come up after link down
1793 * before returning I/Os to OS with "DID_NO_CONNECT".
1794 */
1795 if (nv->link_down_timeout == 0) {
1796 ha->loop_down_abort_time =
1797 (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
1798 } else {
1799 ha->link_down_timeout = nv->link_down_timeout;
1800 ha->loop_down_abort_time =
1801 (LOOP_DOWN_TIME - ha->link_down_timeout);
1802 }
1803
1804 /*
1805 * Need enough time to try and get the port back.
1806 */
1807 ha->port_down_retry_count = nv->port_down_retry_count;
1808 if (qlport_down_retry)
1809 ha->port_down_retry_count = qlport_down_retry;
1810 /* Set login_retry_count */
1811 ha->login_retry_count = nv->retry_count;
1812 if (ha->port_down_retry_count == nv->port_down_retry_count &&
1813 ha->port_down_retry_count > 3)
1814 ha->login_retry_count = ha->port_down_retry_count;
1815 else if (ha->port_down_retry_count > (int)ha->login_retry_count)
1816 ha->login_retry_count = ha->port_down_retry_count;
1817 if (ql2xloginretrycount)
1818 ha->login_retry_count = ql2xloginretrycount;
1819
1820 icb->lun_enables = __constant_cpu_to_le16(0);
1821 icb->command_resource_count = 0;
1822 icb->immediate_notify_resource_count = 0;
1823 icb->timeout = __constant_cpu_to_le16(0);
1824
1825 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
1826 /* Enable RIO */
1827 icb->firmware_options[0] &= ~BIT_3;
1828 icb->add_firmware_options[0] &=
1829 ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
1830 icb->add_firmware_options[0] |= BIT_2;
1831 icb->response_accumulation_timer = 3;
1832 icb->interrupt_delay_timer = 5;
1833
1834 ha->flags.process_response_queue = 1;
1835 } else {
1836 /* Enable ZIO. */
1837 if (!ha->flags.init_done) {
1838 ha->zio_mode = icb->add_firmware_options[0] &
1839 (BIT_3 | BIT_2 | BIT_1 | BIT_0);
1840 ha->zio_timer = icb->interrupt_delay_timer ?
1841 icb->interrupt_delay_timer: 2;
1842 }
1843 icb->add_firmware_options[0] &=
1844 ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
1845 ha->flags.process_response_queue = 0;
1846 if (ha->zio_mode != QLA_ZIO_DISABLED) {
1847 ha->zio_mode = QLA_ZIO_MODE_6;
1848
1849 DEBUG2(printk("scsi(%ld): ZIO mode %d enabled; timer "
1850 "delay (%d us).\n", ha->host_no, ha->zio_mode,
1851 ha->zio_timer * 100));
1852 qla_printk(KERN_INFO, ha,
1853 "ZIO mode %d enabled; timer delay (%d us).\n",
1854 ha->zio_mode, ha->zio_timer * 100);
1855
1856 icb->add_firmware_options[0] |= (uint8_t)ha->zio_mode;
1857 icb->interrupt_delay_timer = (uint8_t)ha->zio_timer;
1858 ha->flags.process_response_queue = 1;
1859 }
1860 }
1861
1862 if (rval) {
1863 DEBUG2_3(printk(KERN_WARNING
1864 "scsi(%ld): NVRAM configuration failed!\n", ha->host_no));
1865 }
1866 return (rval);
1867 }
1868
1869 static void
1870 qla2x00_rport_del(void *data)
1871 {
1872 fc_port_t *fcport = data;
1873 struct fc_rport *rport;
1874
1875 spin_lock_irq(fcport->ha->host->host_lock);
1876 rport = fcport->drport;
1877 fcport->drport = NULL;
1878 spin_unlock_irq(fcport->ha->host->host_lock);
1879 if (rport)
1880 fc_remote_port_delete(rport);
1881 }
1882
1883 /**
1884 * qla2x00_alloc_fcport() - Allocate a generic fcport.
1885 * @ha: HA context
1886 * @flags: allocation flags
1887 *
1888 * Returns a pointer to the allocated fcport, or NULL, if none available.
1889 */
1890 static fc_port_t *
1891 qla2x00_alloc_fcport(scsi_qla_host_t *ha, gfp_t flags)
1892 {
1893 fc_port_t *fcport;
1894
1895 fcport = kzalloc(sizeof(fc_port_t), flags);
1896 if (!fcport)
1897 return NULL;
1898
1899 /* Setup fcport template structure. */
1900 fcport->ha = ha;
1901 fcport->vp_idx = ha->vp_idx;
1902 fcport->port_type = FCT_UNKNOWN;
1903 fcport->loop_id = FC_NO_LOOP_ID;
1904 atomic_set(&fcport->state, FCS_UNCONFIGURED);
1905 fcport->flags = FCF_RLC_SUPPORT;
1906 fcport->supported_classes = FC_COS_UNSPECIFIED;
1907
1908 return fcport;
1909 }
1910
1911 /*
1912 * qla2x00_configure_loop
1913 * Updates Fibre Channel Device Database with what is actually on loop.
1914 *
1915 * Input:
1916 * ha = adapter block pointer.
1917 *
1918 * Returns:
1919 * 0 = success.
1920 * 1 = error.
1921 * 2 = database was full and device was not configured.
1922 */
1923 static int
1924 qla2x00_configure_loop(scsi_qla_host_t *ha)
1925 {
1926 int rval;
1927 unsigned long flags, save_flags;
1928
1929 rval = QLA_SUCCESS;
1930
1931 /* Get Initiator ID */
1932 if (test_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags)) {
1933 rval = qla2x00_configure_hba(ha);
1934 if (rval != QLA_SUCCESS) {
1935 DEBUG(printk("scsi(%ld): Unable to configure HBA.\n",
1936 ha->host_no));
1937 return (rval);
1938 }
1939 }
1940
1941 save_flags = flags = ha->dpc_flags;
1942 DEBUG(printk("scsi(%ld): Configure loop -- dpc flags =0x%lx\n",
1943 ha->host_no, flags));
1944
1945 /*
1946 * If we have both an RSCN and PORT UPDATE pending then handle them
1947 * both at the same time.
1948 */
1949 clear_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
1950 clear_bit(RSCN_UPDATE, &ha->dpc_flags);
1951
1952 /* Determine what we need to do */
1953 if (ha->current_topology == ISP_CFG_FL &&
1954 (test_bit(LOCAL_LOOP_UPDATE, &flags))) {
1955
1956 ha->flags.rscn_queue_overflow = 1;
1957 set_bit(RSCN_UPDATE, &flags);
1958
1959 } else if (ha->current_topology == ISP_CFG_F &&
1960 (test_bit(LOCAL_LOOP_UPDATE, &flags))) {
1961
1962 ha->flags.rscn_queue_overflow = 1;
1963 set_bit(RSCN_UPDATE, &flags);
1964 clear_bit(LOCAL_LOOP_UPDATE, &flags);
1965
1966 } else if (ha->current_topology == ISP_CFG_N) {
1967 clear_bit(RSCN_UPDATE, &flags);
1968
1969 } else if (!ha->flags.online ||
1970 (test_bit(ABORT_ISP_ACTIVE, &flags))) {
1971
1972 ha->flags.rscn_queue_overflow = 1;
1973 set_bit(RSCN_UPDATE, &flags);
1974 set_bit(LOCAL_LOOP_UPDATE, &flags);
1975 }
1976
1977 if (test_bit(LOCAL_LOOP_UPDATE, &flags)) {
1978 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
1979 rval = QLA_FUNCTION_FAILED;
1980 } else {
1981 rval = qla2x00_configure_local_loop(ha);
1982 }
1983 }
1984
1985 if (rval == QLA_SUCCESS && test_bit(RSCN_UPDATE, &flags)) {
1986 if (LOOP_TRANSITION(ha)) {
1987 rval = QLA_FUNCTION_FAILED;
1988 } else {
1989 rval = qla2x00_configure_fabric(ha);
1990 }
1991 }
1992
1993 if (rval == QLA_SUCCESS) {
1994 if (atomic_read(&ha->loop_down_timer) ||
1995 test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
1996 rval = QLA_FUNCTION_FAILED;
1997 } else {
1998 atomic_set(&ha->loop_state, LOOP_READY);
1999
2000 DEBUG(printk("scsi(%ld): LOOP READY\n", ha->host_no));
2001 }
2002 }
2003
2004 if (rval) {
2005 DEBUG2_3(printk("%s(%ld): *** FAILED ***\n",
2006 __func__, ha->host_no));
2007 } else {
2008 DEBUG3(printk("%s: exiting normally\n", __func__));
2009 }
2010
2011 /* Restore state if a resync event occured during processing */
2012 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2013 if (test_bit(LOCAL_LOOP_UPDATE, &save_flags))
2014 set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
2015 if (test_bit(RSCN_UPDATE, &save_flags))
2016 set_bit(RSCN_UPDATE, &ha->dpc_flags);
2017 }
2018
2019 return (rval);
2020 }
2021
2022
2023
2024 /*
2025 * qla2x00_configure_local_loop
2026 * Updates Fibre Channel Device Database with local loop devices.
2027 *
2028 * Input:
2029 * ha = adapter block pointer.
2030 *
2031 * Returns:
2032 * 0 = success.
2033 */
2034 static int
2035 qla2x00_configure_local_loop(scsi_qla_host_t *ha)
2036 {
2037 int rval, rval2;
2038 int found_devs;
2039 int found;
2040 fc_port_t *fcport, *new_fcport;
2041
2042 uint16_t index;
2043 uint16_t entries;
2044 char *id_iter;
2045 uint16_t loop_id;
2046 uint8_t domain, area, al_pa;
2047 scsi_qla_host_t *pha = to_qla_parent(ha);
2048
2049 found_devs = 0;
2050 new_fcport = NULL;
2051 entries = MAX_FIBRE_DEVICES;
2052
2053 DEBUG3(printk("scsi(%ld): Getting FCAL position map\n", ha->host_no));
2054 DEBUG3(qla2x00_get_fcal_position_map(ha, NULL));
2055
2056 /* Get list of logged in devices. */
2057 memset(ha->gid_list, 0, GID_LIST_SIZE);
2058 rval = qla2x00_get_id_list(ha, ha->gid_list, ha->gid_list_dma,
2059 &entries);
2060 if (rval != QLA_SUCCESS)
2061 goto cleanup_allocation;
2062
2063 DEBUG3(printk("scsi(%ld): Entries in ID list (%d)\n",
2064 ha->host_no, entries));
2065 DEBUG3(qla2x00_dump_buffer((uint8_t *)ha->gid_list,
2066 entries * sizeof(struct gid_list_info)));
2067
2068 /* Allocate temporary fcport for any new fcports discovered. */
2069 new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
2070 if (new_fcport == NULL) {
2071 rval = QLA_MEMORY_ALLOC_FAILED;
2072 goto cleanup_allocation;
2073 }
2074 new_fcport->flags &= ~FCF_FABRIC_DEVICE;
2075
2076 /*
2077 * Mark local devices that were present with FCF_DEVICE_LOST for now.
2078 */
2079 list_for_each_entry(fcport, &pha->fcports, list) {
2080 if (fcport->vp_idx != ha->vp_idx)
2081 continue;
2082
2083 if (atomic_read(&fcport->state) == FCS_ONLINE &&
2084 fcport->port_type != FCT_BROADCAST &&
2085 (fcport->flags & FCF_FABRIC_DEVICE) == 0) {
2086
2087 DEBUG(printk("scsi(%ld): Marking port lost, "
2088 "loop_id=0x%04x\n",
2089 ha->host_no, fcport->loop_id));
2090
2091 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2092 fcport->flags &= ~FCF_FARP_DONE;
2093 }
2094 }
2095
2096 /* Add devices to port list. */
2097 id_iter = (char *)ha->gid_list;
2098 for (index = 0; index < entries; index++) {
2099 domain = ((struct gid_list_info *)id_iter)->domain;
2100 area = ((struct gid_list_info *)id_iter)->area;
2101 al_pa = ((struct gid_list_info *)id_iter)->al_pa;
2102 if (IS_QLA2100(ha) || IS_QLA2200(ha))
2103 loop_id = (uint16_t)
2104 ((struct gid_list_info *)id_iter)->loop_id_2100;
2105 else
2106 loop_id = le16_to_cpu(
2107 ((struct gid_list_info *)id_iter)->loop_id);
2108 id_iter += ha->gid_list_info_size;
2109
2110 /* Bypass reserved domain fields. */
2111 if ((domain & 0xf0) == 0xf0)
2112 continue;
2113
2114 /* Bypass if not same domain and area of adapter. */
2115 if (area && domain &&
2116 (area != ha->d_id.b.area || domain != ha->d_id.b.domain))
2117 continue;
2118
2119 /* Bypass invalid local loop ID. */
2120 if (loop_id > LAST_LOCAL_LOOP_ID)
2121 continue;
2122
2123 /* Fill in member data. */
2124 new_fcport->d_id.b.domain = domain;
2125 new_fcport->d_id.b.area = area;
2126 new_fcport->d_id.b.al_pa = al_pa;
2127 new_fcport->loop_id = loop_id;
2128 new_fcport->vp_idx = ha->vp_idx;
2129 rval2 = qla2x00_get_port_database(ha, new_fcport, 0);
2130 if (rval2 != QLA_SUCCESS) {
2131 DEBUG2(printk("scsi(%ld): Failed to retrieve fcport "
2132 "information -- get_port_database=%x, "
2133 "loop_id=0x%04x\n",
2134 ha->host_no, rval2, new_fcport->loop_id));
2135 DEBUG2(printk("scsi(%ld): Scheduling resync...\n",
2136 ha->host_no));
2137 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2138 continue;
2139 }
2140
2141 /* Check for matching device in port list. */
2142 found = 0;
2143 fcport = NULL;
2144 list_for_each_entry(fcport, &pha->fcports, list) {
2145 if (fcport->vp_idx != ha->vp_idx)
2146 continue;
2147
2148 if (memcmp(new_fcport->port_name, fcport->port_name,
2149 WWN_SIZE))
2150 continue;
2151
2152 fcport->flags &= ~(FCF_FABRIC_DEVICE |
2153 FCF_PERSISTENT_BOUND);
2154 fcport->loop_id = new_fcport->loop_id;
2155 fcport->port_type = new_fcport->port_type;
2156 fcport->d_id.b24 = new_fcport->d_id.b24;
2157 memcpy(fcport->node_name, new_fcport->node_name,
2158 WWN_SIZE);
2159
2160 found++;
2161 break;
2162 }
2163
2164 if (!found) {
2165 /* New device, add to fcports list. */
2166 new_fcport->flags &= ~FCF_PERSISTENT_BOUND;
2167 if (ha->parent) {
2168 new_fcport->ha = ha;
2169 new_fcport->vp_idx = ha->vp_idx;
2170 list_add_tail(&new_fcport->vp_fcport,
2171 &ha->vp_fcports);
2172 }
2173 list_add_tail(&new_fcport->list, &pha->fcports);
2174
2175 /* Allocate a new replacement fcport. */
2176 fcport = new_fcport;
2177 new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
2178 if (new_fcport == NULL) {
2179 rval = QLA_MEMORY_ALLOC_FAILED;
2180 goto cleanup_allocation;
2181 }
2182 new_fcport->flags &= ~FCF_FABRIC_DEVICE;
2183 }
2184
2185 /* Base iIDMA settings on HBA port speed. */
2186 fcport->fp_speed = ha->link_data_rate;
2187
2188 qla2x00_update_fcport(ha, fcport);
2189
2190 found_devs++;
2191 }
2192
2193 cleanup_allocation:
2194 kfree(new_fcport);
2195
2196 if (rval != QLA_SUCCESS) {
2197 DEBUG2(printk("scsi(%ld): Configure local loop error exit: "
2198 "rval=%x\n", ha->host_no, rval));
2199 }
2200
2201 if (found_devs) {
2202 ha->device_flags |= DFLG_LOCAL_DEVICES;
2203 ha->device_flags &= ~DFLG_RETRY_LOCAL_DEVICES;
2204 }
2205
2206 return (rval);
2207 }
2208
2209 static void
2210 qla2x00_iidma_fcport(scsi_qla_host_t *ha, fc_port_t *fcport)
2211 {
2212 #define LS_UNKNOWN 2
2213 static char *link_speeds[5] = { "1", "2", "?", "4", "8" };
2214 int rval;
2215 uint16_t mb[6];
2216
2217 if (!IS_IIDMA_CAPABLE(ha))
2218 return;
2219
2220 if (fcport->fp_speed == PORT_SPEED_UNKNOWN ||
2221 fcport->fp_speed > ha->link_data_rate)
2222 return;
2223
2224 rval = qla2x00_set_idma_speed(ha, fcport->loop_id, fcport->fp_speed,
2225 mb);
2226 if (rval != QLA_SUCCESS) {
2227 DEBUG2(printk("scsi(%ld): Unable to adjust iIDMA "
2228 "%02x%02x%02x%02x%02x%02x%02x%02x -- %04x %x %04x %04x.\n",
2229 ha->host_no, fcport->port_name[0], fcport->port_name[1],
2230 fcport->port_name[2], fcport->port_name[3],
2231 fcport->port_name[4], fcport->port_name[5],
2232 fcport->port_name[6], fcport->port_name[7], rval,
2233 fcport->fp_speed, mb[0], mb[1]));
2234 } else {
2235 DEBUG2(qla_printk(KERN_INFO, ha,
2236 "iIDMA adjusted to %s GB/s on "
2237 "%02x%02x%02x%02x%02x%02x%02x%02x.\n",
2238 link_speeds[fcport->fp_speed], fcport->port_name[0],
2239 fcport->port_name[1], fcport->port_name[2],
2240 fcport->port_name[3], fcport->port_name[4],
2241 fcport->port_name[5], fcport->port_name[6],
2242 fcport->port_name[7]));
2243 }
2244 }
2245
2246 static void
2247 qla2x00_reg_remote_port(scsi_qla_host_t *ha, fc_port_t *fcport)
2248 {
2249 struct fc_rport_identifiers rport_ids;
2250 struct fc_rport *rport;
2251
2252 if (fcport->drport)
2253 qla2x00_rport_del(fcport);
2254
2255 rport_ids.node_name = wwn_to_u64(fcport->node_name);
2256 rport_ids.port_name = wwn_to_u64(fcport->port_name);
2257 rport_ids.port_id = fcport->d_id.b.domain << 16 |
2258 fcport->d_id.b.area << 8 | fcport->d_id.b.al_pa;
2259 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
2260 fcport->rport = rport = fc_remote_port_add(ha->host, 0, &rport_ids);
2261 if (!rport) {
2262 qla_printk(KERN_WARNING, ha,
2263 "Unable to allocate fc remote port!\n");
2264 return;
2265 }
2266 spin_lock_irq(fcport->ha->host->host_lock);
2267 *((fc_port_t **)rport->dd_data) = fcport;
2268 spin_unlock_irq(fcport->ha->host->host_lock);
2269
2270 rport->supported_classes = fcport->supported_classes;
2271
2272 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
2273 if (fcport->port_type == FCT_INITIATOR)
2274 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
2275 if (fcport->port_type == FCT_TARGET)
2276 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
2277 fc_remote_port_rolechg(rport, rport_ids.roles);
2278 }
2279
2280 /*
2281 * qla2x00_update_fcport
2282 * Updates device on list.
2283 *
2284 * Input:
2285 * ha = adapter block pointer.
2286 * fcport = port structure pointer.
2287 *
2288 * Return:
2289 * 0 - Success
2290 * BIT_0 - error
2291 *
2292 * Context:
2293 * Kernel context.
2294 */
2295 void
2296 qla2x00_update_fcport(scsi_qla_host_t *ha, fc_port_t *fcport)
2297 {
2298 scsi_qla_host_t *pha = to_qla_parent(ha);
2299
2300 fcport->ha = ha;
2301 fcport->login_retry = 0;
2302 fcport->port_login_retry_count = pha->port_down_retry_count *
2303 PORT_RETRY_TIME;
2304 atomic_set(&fcport->port_down_timer, pha->port_down_retry_count *
2305 PORT_RETRY_TIME);
2306 fcport->flags &= ~FCF_LOGIN_NEEDED;
2307
2308 qla2x00_iidma_fcport(ha, fcport);
2309
2310 atomic_set(&fcport->state, FCS_ONLINE);
2311
2312 qla2x00_reg_remote_port(ha, fcport);
2313 }
2314
2315 /*
2316 * qla2x00_configure_fabric
2317 * Setup SNS devices with loop ID's.
2318 *
2319 * Input:
2320 * ha = adapter block pointer.
2321 *
2322 * Returns:
2323 * 0 = success.
2324 * BIT_0 = error
2325 */
2326 static int
2327 qla2x00_configure_fabric(scsi_qla_host_t *ha)
2328 {
2329 int rval, rval2;
2330 fc_port_t *fcport, *fcptemp;
2331 uint16_t next_loopid;
2332 uint16_t mb[MAILBOX_REGISTER_COUNT];
2333 uint16_t loop_id;
2334 LIST_HEAD(new_fcports);
2335 scsi_qla_host_t *pha = to_qla_parent(ha);
2336
2337 /* If FL port exists, then SNS is present */
2338 if (IS_FWI2_CAPABLE(ha))
2339 loop_id = NPH_F_PORT;
2340 else
2341 loop_id = SNS_FL_PORT;
2342 rval = qla2x00_get_port_name(ha, loop_id, ha->fabric_node_name, 1);
2343 if (rval != QLA_SUCCESS) {
2344 DEBUG2(printk("scsi(%ld): MBC_GET_PORT_NAME Failed, No FL "
2345 "Port\n", ha->host_no));
2346
2347 ha->device_flags &= ~SWITCH_FOUND;
2348 return (QLA_SUCCESS);
2349 }
2350 ha->device_flags |= SWITCH_FOUND;
2351
2352 /* Mark devices that need re-synchronization. */
2353 rval2 = qla2x00_device_resync(ha);
2354 if (rval2 == QLA_RSCNS_HANDLED) {
2355 /* No point doing the scan, just continue. */
2356 return (QLA_SUCCESS);
2357 }
2358 do {
2359 /* FDMI support. */
2360 if (ql2xfdmienable &&
2361 test_and_clear_bit(REGISTER_FDMI_NEEDED, &ha->dpc_flags))
2362 qla2x00_fdmi_register(ha);
2363
2364 /* Ensure we are logged into the SNS. */
2365 if (IS_FWI2_CAPABLE(ha))
2366 loop_id = NPH_SNS;
2367 else
2368 loop_id = SIMPLE_NAME_SERVER;
2369 ha->isp_ops->fabric_login(ha, loop_id, 0xff, 0xff,
2370 0xfc, mb, BIT_1 | BIT_0);
2371 if (mb[0] != MBS_COMMAND_COMPLETE) {
2372 DEBUG2(qla_printk(KERN_INFO, ha,
2373 "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x "
2374 "mb[2]=%x mb[6]=%x mb[7]=%x\n", loop_id,
2375 mb[0], mb[1], mb[2], mb[6], mb[7]));
2376 return (QLA_SUCCESS);
2377 }
2378
2379 if (test_and_clear_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags)) {
2380 if (qla2x00_rft_id(ha)) {
2381 /* EMPTY */
2382 DEBUG2(printk("scsi(%ld): Register FC-4 "
2383 "TYPE failed.\n", ha->host_no));
2384 }
2385 if (qla2x00_rff_id(ha)) {
2386 /* EMPTY */
2387 DEBUG2(printk("scsi(%ld): Register FC-4 "
2388 "Features failed.\n", ha->host_no));
2389 }
2390 if (qla2x00_rnn_id(ha)) {
2391 /* EMPTY */
2392 DEBUG2(printk("scsi(%ld): Register Node Name "
2393 "failed.\n", ha->host_no));
2394 } else if (qla2x00_rsnn_nn(ha)) {
2395 /* EMPTY */
2396 DEBUG2(printk("scsi(%ld): Register Symbolic "
2397 "Node Name failed.\n", ha->host_no));
2398 }
2399 }
2400
2401 rval = qla2x00_find_all_fabric_devs(ha, &new_fcports);
2402 if (rval != QLA_SUCCESS)
2403 break;
2404
2405 /*
2406 * Logout all previous fabric devices marked lost, except
2407 * tape devices.
2408 */
2409 list_for_each_entry(fcport, &pha->fcports, list) {
2410 if (fcport->vp_idx !=ha->vp_idx)
2411 continue;
2412
2413 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2414 break;
2415
2416 if ((fcport->flags & FCF_FABRIC_DEVICE) == 0)
2417 continue;
2418
2419 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2420 qla2x00_mark_device_lost(ha, fcport,
2421 ql2xplogiabsentdevice, 0);
2422 if (fcport->loop_id != FC_NO_LOOP_ID &&
2423 (fcport->flags & FCF_TAPE_PRESENT) == 0 &&
2424 fcport->port_type != FCT_INITIATOR &&
2425 fcport->port_type != FCT_BROADCAST) {
2426 ha->isp_ops->fabric_logout(ha,
2427 fcport->loop_id,
2428 fcport->d_id.b.domain,
2429 fcport->d_id.b.area,
2430 fcport->d_id.b.al_pa);
2431 fcport->loop_id = FC_NO_LOOP_ID;
2432 }
2433 }
2434 }
2435
2436 /* Starting free loop ID. */
2437 next_loopid = pha->min_external_loopid;
2438
2439 /*
2440 * Scan through our port list and login entries that need to be
2441 * logged in.
2442 */
2443 list_for_each_entry(fcport, &pha->fcports, list) {
2444 if (fcport->vp_idx != ha->vp_idx)
2445 continue;
2446
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(
2458 to_qla_parent(ha), fcport);
2459 if (rval != QLA_SUCCESS) {
2460 /* Ran out of IDs to use */
2461 break;
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(to_qla_parent(ha),
2484 fcport);
2485 if (rval != QLA_SUCCESS) {
2486 /* Ran out of IDs to use */
2487 break;
2488 }
2489
2490 /* Login and update database */
2491 qla2x00_fabric_dev_login(ha, fcport, &next_loopid);
2492
2493 if (ha->parent) {
2494 fcport->ha = ha;
2495 fcport->vp_idx = ha->vp_idx;
2496 list_add_tail(&fcport->vp_fcport,
2497 &ha->vp_fcports);
2498 list_move_tail(&fcport->list,
2499 &ha->parent->fcports);
2500 } else
2501 list_move_tail(&fcport->list, &ha->fcports);
2502 }
2503 } while (0);
2504
2505 /* Free all new device structures not processed. */
2506 list_for_each_entry_safe(fcport, fcptemp, &new_fcports, list) {
2507 list_del(&fcport->list);
2508 kfree(fcport);
2509 }
2510
2511 if (rval) {
2512 DEBUG2(printk("scsi(%ld): Configure fabric error exit: "
2513 "rval=%d\n", ha->host_no, rval));
2514 }
2515
2516 return (rval);
2517 }
2518
2519
2520 /*
2521 * qla2x00_find_all_fabric_devs
2522 *
2523 * Input:
2524 * ha = adapter block pointer.
2525 * dev = database device entry pointer.
2526 *
2527 * Returns:
2528 * 0 = success.
2529 *
2530 * Context:
2531 * Kernel context.
2532 */
2533 static int
2534 qla2x00_find_all_fabric_devs(scsi_qla_host_t *ha, struct list_head *new_fcports)
2535 {
2536 int rval;
2537 uint16_t loop_id;
2538 fc_port_t *fcport, *new_fcport, *fcptemp;
2539 int found;
2540
2541 sw_info_t *swl;
2542 int swl_idx;
2543 int first_dev, last_dev;
2544 port_id_t wrap, nxt_d_id;
2545 int vp_index;
2546 int empty_vp_index;
2547 int found_vp;
2548 scsi_qla_host_t *vha;
2549 scsi_qla_host_t *pha = to_qla_parent(ha);
2550
2551 rval = QLA_SUCCESS;
2552
2553 /* Try GID_PT to get device list, else GAN. */
2554 swl = kcalloc(MAX_FIBRE_DEVICES, sizeof(sw_info_t), GFP_ATOMIC);
2555 if (!swl) {
2556 /*EMPTY*/
2557 DEBUG2(printk("scsi(%ld): GID_PT allocations failed, fallback "
2558 "on GA_NXT\n", ha->host_no));
2559 } else {
2560 if (qla2x00_gid_pt(ha, swl) != QLA_SUCCESS) {
2561 kfree(swl);
2562 swl = NULL;
2563 } else if (qla2x00_gpn_id(ha, swl) != QLA_SUCCESS) {
2564 kfree(swl);
2565 swl = NULL;
2566 } else if (qla2x00_gnn_id(ha, swl) != QLA_SUCCESS) {
2567 kfree(swl);
2568 swl = NULL;
2569 } else if (ql2xiidmaenable &&
2570 qla2x00_gfpn_id(ha, swl) == QLA_SUCCESS) {
2571 qla2x00_gpsc(ha, swl);
2572 }
2573 }
2574 swl_idx = 0;
2575
2576 /* Allocate temporary fcport for any new fcports discovered. */
2577 new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
2578 if (new_fcport == NULL) {
2579 kfree(swl);
2580 return (QLA_MEMORY_ALLOC_FAILED);
2581 }
2582 new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
2583 new_fcport->vp_idx = ha->vp_idx;
2584 /* Set start port ID scan at adapter ID. */
2585 first_dev = 1;
2586 last_dev = 0;
2587
2588 /* Starting free loop ID. */
2589 loop_id = pha->min_external_loopid;
2590 for (; loop_id <= ha->last_loop_id; loop_id++) {
2591 if (qla2x00_is_reserved_id(ha, loop_id))
2592 continue;
2593
2594 if (atomic_read(&ha->loop_down_timer) || LOOP_TRANSITION(ha))
2595 break;
2596
2597 if (swl != NULL) {
2598 if (last_dev) {
2599 wrap.b24 = new_fcport->d_id.b24;
2600 } else {
2601 new_fcport->d_id.b24 = swl[swl_idx].d_id.b24;
2602 memcpy(new_fcport->node_name,
2603 swl[swl_idx].node_name, WWN_SIZE);
2604 memcpy(new_fcport->port_name,
2605 swl[swl_idx].port_name, WWN_SIZE);
2606 memcpy(new_fcport->fabric_port_name,
2607 swl[swl_idx].fabric_port_name, WWN_SIZE);
2608 new_fcport->fp_speed = swl[swl_idx].fp_speed;
2609
2610 if (swl[swl_idx].d_id.b.rsvd_1 != 0) {
2611 last_dev = 1;
2612 }
2613 swl_idx++;
2614 }
2615 } else {
2616 /* Send GA_NXT to the switch */
2617 rval = qla2x00_ga_nxt(ha, new_fcport);
2618 if (rval != QLA_SUCCESS) {
2619 qla_printk(KERN_WARNING, ha,
2620 "SNS scan failed -- assuming zero-entry "
2621 "result...\n");
2622 list_for_each_entry_safe(fcport, fcptemp,
2623 new_fcports, list) {
2624 list_del(&fcport->list);
2625 kfree(fcport);
2626 }
2627 rval = QLA_SUCCESS;
2628 break;
2629 }
2630 }
2631
2632 /* If wrap on switch device list, exit. */
2633 if (first_dev) {
2634 wrap.b24 = new_fcport->d_id.b24;
2635 first_dev = 0;
2636 } else if (new_fcport->d_id.b24 == wrap.b24) {
2637 DEBUG2(printk("scsi(%ld): device wrap (%02x%02x%02x)\n",
2638 ha->host_no, new_fcport->d_id.b.domain,
2639 new_fcport->d_id.b.area, new_fcport->d_id.b.al_pa));
2640 break;
2641 }
2642
2643 /* Bypass if same physical adapter. */
2644 if (new_fcport->d_id.b24 == pha->d_id.b24)
2645 continue;
2646
2647 /* Bypass virtual ports of the same host. */
2648 if (pha->num_vhosts) {
2649 for_each_mapped_vp_idx(pha, vp_index) {
2650 empty_vp_index = 1;
2651 found_vp = 0;
2652 list_for_each_entry(vha, &pha->vp_list,
2653 vp_list) {
2654 if (vp_index == vha->vp_idx) {
2655 empty_vp_index = 0;
2656 found_vp = 1;
2657 break;
2658 }
2659 }
2660
2661 if (empty_vp_index)
2662 continue;
2663
2664 if (found_vp &&
2665 new_fcport->d_id.b24 == vha->d_id.b24)
2666 break;
2667 }
2668
2669 if (vp_index <= pha->max_npiv_vports)
2670 continue;
2671 }
2672
2673 /* Bypass if same domain and area of adapter. */
2674 if (((new_fcport->d_id.b24 & 0xffff00) ==
2675 (ha->d_id.b24 & 0xffff00)) && ha->current_topology ==
2676 ISP_CFG_FL)
2677 continue;
2678
2679 /* Bypass reserved domain fields. */
2680 if ((new_fcport->d_id.b.domain & 0xf0) == 0xf0)
2681 continue;
2682
2683 /* Locate matching device in database. */
2684 found = 0;
2685 list_for_each_entry(fcport, &pha->fcports, list) {
2686 if (new_fcport->vp_idx != fcport->vp_idx)
2687 continue;
2688 if (memcmp(new_fcport->port_name, fcport->port_name,
2689 WWN_SIZE))
2690 continue;
2691
2692 found++;
2693
2694 /* Update port state. */
2695 memcpy(fcport->fabric_port_name,
2696 new_fcport->fabric_port_name, WWN_SIZE);
2697 fcport->fp_speed = new_fcport->fp_speed;
2698
2699 /*
2700 * If address the same and state FCS_ONLINE, nothing
2701 * changed.
2702 */
2703 if (fcport->d_id.b24 == new_fcport->d_id.b24 &&
2704 atomic_read(&fcport->state) == FCS_ONLINE) {
2705 break;
2706 }
2707
2708 /*
2709 * If device was not a fabric device before.
2710 */
2711 if ((fcport->flags & FCF_FABRIC_DEVICE) == 0) {
2712 fcport->d_id.b24 = new_fcport->d_id.b24;
2713 fcport->loop_id = FC_NO_LOOP_ID;
2714 fcport->flags |= (FCF_FABRIC_DEVICE |
2715 FCF_LOGIN_NEEDED);
2716 fcport->flags &= ~FCF_PERSISTENT_BOUND;
2717 break;
2718 }
2719
2720 /*
2721 * Port ID changed or device was marked to be updated;
2722 * Log it out if still logged in and mark it for
2723 * relogin later.
2724 */
2725 fcport->d_id.b24 = new_fcport->d_id.b24;
2726 fcport->flags |= FCF_LOGIN_NEEDED;
2727 if (fcport->loop_id != FC_NO_LOOP_ID &&
2728 (fcport->flags & FCF_TAPE_PRESENT) == 0 &&
2729 fcport->port_type != FCT_INITIATOR &&
2730 fcport->port_type != FCT_BROADCAST) {
2731 ha->isp_ops->fabric_logout(ha, fcport->loop_id,
2732 fcport->d_id.b.domain, fcport->d_id.b.area,
2733 fcport->d_id.b.al_pa);
2734 fcport->loop_id = FC_NO_LOOP_ID;
2735 }
2736
2737 break;
2738 }
2739
2740 if (found)
2741 continue;
2742
2743 /* If device was not in our fcports list, then add it. */
2744 list_add_tail(&new_fcport->list, new_fcports);
2745
2746 /* Allocate a new replacement fcport. */
2747 nxt_d_id.b24 = new_fcport->d_id.b24;
2748 new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
2749 if (new_fcport == NULL) {
2750 kfree(swl);
2751 return (QLA_MEMORY_ALLOC_FAILED);
2752 }
2753 new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
2754 new_fcport->d_id.b24 = nxt_d_id.b24;
2755 new_fcport->vp_idx = ha->vp_idx;
2756 }
2757
2758 kfree(swl);
2759 kfree(new_fcport);
2760
2761 if (!list_empty(new_fcports))
2762 ha->device_flags |= DFLG_FABRIC_DEVICES;
2763
2764 return (rval);
2765 }
2766
2767 /*
2768 * qla2x00_find_new_loop_id
2769 * Scan through our port list and find a new usable loop ID.
2770 *
2771 * Input:
2772 * ha: adapter state pointer.
2773 * dev: port structure pointer.
2774 *
2775 * Returns:
2776 * qla2x00 local function return status code.
2777 *
2778 * Context:
2779 * Kernel context.
2780 */
2781 static int
2782 qla2x00_find_new_loop_id(scsi_qla_host_t *ha, fc_port_t *dev)
2783 {
2784 int rval;
2785 int found;
2786 fc_port_t *fcport;
2787 uint16_t first_loop_id;
2788 scsi_qla_host_t *pha = to_qla_parent(ha);
2789
2790 rval = QLA_SUCCESS;
2791
2792 /* Save starting loop ID. */
2793 first_loop_id = dev->loop_id;
2794
2795 for (;;) {
2796 /* Skip loop ID if already used by adapter. */
2797 if (dev->loop_id == ha->loop_id) {
2798 dev->loop_id++;
2799 }
2800
2801 /* Skip reserved loop IDs. */
2802 while (qla2x00_is_reserved_id(ha, dev->loop_id)) {
2803 dev->loop_id++;
2804 }
2805
2806 /* Reset loop ID if passed the end. */
2807 if (dev->loop_id > ha->last_loop_id) {
2808 /* first loop ID. */
2809 dev->loop_id = ha->min_external_loopid;
2810 }
2811
2812 /* Check for loop ID being already in use. */
2813 found = 0;
2814 fcport = NULL;
2815 list_for_each_entry(fcport, &pha->fcports, list) {
2816 if (fcport->loop_id == dev->loop_id && fcport != dev) {
2817 /* ID possibly in use */
2818 found++;
2819 break;
2820 }
2821 }
2822
2823 /* If not in use then it is free to use. */
2824 if (!found) {
2825 break;
2826 }
2827
2828 /* ID in use. Try next value. */
2829 dev->loop_id++;
2830
2831 /* If wrap around. No free ID to use. */
2832 if (dev->loop_id == first_loop_id) {
2833 dev->loop_id = FC_NO_LOOP_ID;
2834 rval = QLA_FUNCTION_FAILED;
2835 break;
2836 }
2837 }
2838
2839 return (rval);
2840 }
2841
2842 /*
2843 * qla2x00_device_resync
2844 * Marks devices in the database that needs resynchronization.
2845 *
2846 * Input:
2847 * ha = adapter block pointer.
2848 *
2849 * Context:
2850 * Kernel context.
2851 */
2852 static int
2853 qla2x00_device_resync(scsi_qla_host_t *ha)
2854 {
2855 int rval;
2856 uint32_t mask;
2857 fc_port_t *fcport;
2858 uint32_t rscn_entry;
2859 uint8_t rscn_out_iter;
2860 uint8_t format;
2861 port_id_t d_id;
2862 scsi_qla_host_t *pha = to_qla_parent(ha);
2863
2864 rval = QLA_RSCNS_HANDLED;
2865
2866 while (ha->rscn_out_ptr != ha->rscn_in_ptr ||
2867 ha->flags.rscn_queue_overflow) {
2868
2869 rscn_entry = ha->rscn_queue[ha->rscn_out_ptr];
2870 format = MSB(MSW(rscn_entry));
2871 d_id.b.domain = LSB(MSW(rscn_entry));
2872 d_id.b.area = MSB(LSW(rscn_entry));
2873 d_id.b.al_pa = LSB(LSW(rscn_entry));
2874
2875 DEBUG(printk("scsi(%ld): RSCN queue entry[%d] = "
2876 "[%02x/%02x%02x%02x].\n",
2877 ha->host_no, ha->rscn_out_ptr, format, d_id.b.domain,
2878 d_id.b.area, d_id.b.al_pa));
2879
2880 ha->rscn_out_ptr++;
2881 if (ha->rscn_out_ptr == MAX_RSCN_COUNT)
2882 ha->rscn_out_ptr = 0;
2883
2884 /* Skip duplicate entries. */
2885 for (rscn_out_iter = ha->rscn_out_ptr;
2886 !ha->flags.rscn_queue_overflow &&
2887 rscn_out_iter != ha->rscn_in_ptr;
2888 rscn_out_iter = (rscn_out_iter ==
2889 (MAX_RSCN_COUNT - 1)) ? 0: rscn_out_iter + 1) {
2890
2891 if (rscn_entry != ha->rscn_queue[rscn_out_iter])
2892 break;
2893
2894 DEBUG(printk("scsi(%ld): Skipping duplicate RSCN queue "
2895 "entry found at [%d].\n", ha->host_no,
2896 rscn_out_iter));
2897
2898 ha->rscn_out_ptr = rscn_out_iter;
2899 }
2900
2901 /* Queue overflow, set switch default case. */
2902 if (ha->flags.rscn_queue_overflow) {
2903 DEBUG(printk("scsi(%ld): device_resync: rscn "
2904 "overflow.\n", ha->host_no));
2905
2906 format = 3;
2907 ha->flags.rscn_queue_overflow = 0;
2908 }
2909
2910 switch (format) {
2911 case 0:
2912 mask = 0xffffff;
2913 break;
2914 case 1:
2915 mask = 0xffff00;
2916 break;
2917 case 2:
2918 mask = 0xff0000;
2919 break;
2920 default:
2921 mask = 0x0;
2922 d_id.b24 = 0;
2923 ha->rscn_out_ptr = ha->rscn_in_ptr;
2924 break;
2925 }
2926
2927 rval = QLA_SUCCESS;
2928
2929 list_for_each_entry(fcport, &pha->fcports, list) {
2930 if (fcport->vp_idx != ha->vp_idx)
2931 continue;
2932
2933 if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 ||
2934 (fcport->d_id.b24 & mask) != d_id.b24 ||
2935 fcport->port_type == FCT_BROADCAST)
2936 continue;
2937
2938 if (atomic_read(&fcport->state) == FCS_ONLINE) {
2939 if (format != 3 ||
2940 fcport->port_type != FCT_INITIATOR) {
2941 qla2x00_mark_device_lost(ha, fcport,
2942 0, 0);
2943 }
2944 }
2945 fcport->flags &= ~FCF_FARP_DONE;
2946 }
2947 }
2948 return (rval);
2949 }
2950
2951 /*
2952 * qla2x00_fabric_dev_login
2953 * Login fabric target device and update FC port database.
2954 *
2955 * Input:
2956 * ha: adapter state pointer.
2957 * fcport: port structure list pointer.
2958 * next_loopid: contains value of a new loop ID that can be used
2959 * by the next login attempt.
2960 *
2961 * Returns:
2962 * qla2x00 local function return status code.
2963 *
2964 * Context:
2965 * Kernel context.
2966 */
2967 static int
2968 qla2x00_fabric_dev_login(scsi_qla_host_t *ha, fc_port_t *fcport,
2969 uint16_t *next_loopid)
2970 {
2971 int rval;
2972 int retry;
2973 uint8_t opts;
2974
2975 rval = QLA_SUCCESS;
2976 retry = 0;
2977
2978 rval = qla2x00_fabric_login(ha, fcport, next_loopid);
2979 if (rval == QLA_SUCCESS) {
2980 /* Send an ADISC to tape devices.*/
2981 opts = 0;
2982 if (fcport->flags & FCF_TAPE_PRESENT)
2983 opts |= BIT_1;
2984 rval = qla2x00_get_port_database(ha, fcport, opts);
2985 if (rval != QLA_SUCCESS) {
2986 ha->isp_ops->fabric_logout(ha, fcport->loop_id,
2987 fcport->d_id.b.domain, fcport->d_id.b.area,
2988 fcport->d_id.b.al_pa);
2989 qla2x00_mark_device_lost(ha, fcport, 1, 0);
2990 } else {
2991 qla2x00_update_fcport(ha, fcport);
2992 }
2993 }
2994
2995 return (rval);
2996 }
2997
2998 /*
2999 * qla2x00_fabric_login
3000 * Issue fabric login command.
3001 *
3002 * Input:
3003 * ha = adapter block pointer.
3004 * device = pointer to FC device type structure.
3005 *
3006 * Returns:
3007 * 0 - Login successfully
3008 * 1 - Login failed
3009 * 2 - Initiator device
3010 * 3 - Fatal error
3011 */
3012 int
3013 qla2x00_fabric_login(scsi_qla_host_t *ha, fc_port_t *fcport,
3014 uint16_t *next_loopid)
3015 {
3016 int rval;
3017 int retry;
3018 uint16_t tmp_loopid;
3019 uint16_t mb[MAILBOX_REGISTER_COUNT];
3020
3021 retry = 0;
3022 tmp_loopid = 0;
3023
3024 for (;;) {
3025 DEBUG(printk("scsi(%ld): Trying Fabric Login w/loop id 0x%04x "
3026 "for port %02x%02x%02x.\n",
3027 ha->host_no, fcport->loop_id, fcport->d_id.b.domain,
3028 fcport->d_id.b.area, fcport->d_id.b.al_pa));
3029
3030 /* Login fcport on switch. */
3031 ha->isp_ops->fabric_login(ha, fcport->loop_id,
3032 fcport->d_id.b.domain, fcport->d_id.b.area,
3033 fcport->d_id.b.al_pa, mb, BIT_0);
3034 if (mb[0] == MBS_PORT_ID_USED) {
3035 /*
3036 * Device has another loop ID. The firmware team
3037 * recommends the driver perform an implicit login with
3038 * the specified ID again. The ID we just used is save
3039 * here so we return with an ID that can be tried by
3040 * the next login.
3041 */
3042 retry++;
3043 tmp_loopid = fcport->loop_id;
3044 fcport->loop_id = mb[1];
3045
3046 DEBUG(printk("Fabric Login: port in use - next "
3047 "loop id=0x%04x, port Id=%02x%02x%02x.\n",
3048 fcport->loop_id, fcport->d_id.b.domain,
3049 fcport->d_id.b.area, fcport->d_id.b.al_pa));
3050
3051 } else if (mb[0] == MBS_COMMAND_COMPLETE) {
3052 /*
3053 * Login succeeded.
3054 */
3055 if (retry) {
3056 /* A retry occurred before. */
3057 *next_loopid = tmp_loopid;
3058 } else {
3059 /*
3060 * No retry occurred before. Just increment the
3061 * ID value for next login.
3062 */
3063 *next_loopid = (fcport->loop_id + 1);
3064 }
3065
3066 if (mb[1] & BIT_0) {
3067 fcport->port_type = FCT_INITIATOR;
3068 } else {
3069 fcport->port_type = FCT_TARGET;
3070 if (mb[1] & BIT_1) {
3071 fcport->flags |= FCF_TAPE_PRESENT;
3072 }
3073 }
3074
3075 if (mb[10] & BIT_0)
3076 fcport->supported_classes |= FC_COS_CLASS2;
3077 if (mb[10] & BIT_1)
3078 fcport->supported_classes |= FC_COS_CLASS3;
3079
3080 rval = QLA_SUCCESS;
3081 break;
3082 } else if (mb[0] == MBS_LOOP_ID_USED) {
3083 /*
3084 * Loop ID already used, try next loop ID.
3085 */
3086 fcport->loop_id++;
3087 rval = qla2x00_find_new_loop_id(ha, fcport);
3088 if (rval != QLA_SUCCESS) {
3089 /* Ran out of loop IDs to use */
3090 break;
3091 }
3092 } else if (mb[0] == MBS_COMMAND_ERROR) {
3093 /*
3094 * Firmware possibly timed out during login. If NO
3095 * retries are left to do then the device is declared
3096 * dead.
3097 */
3098 *next_loopid = fcport->loop_id;
3099 ha->isp_ops->fabric_logout(ha, fcport->loop_id,
3100 fcport->d_id.b.domain, fcport->d_id.b.area,
3101 fcport->d_id.b.al_pa);
3102 qla2x00_mark_device_lost(ha, fcport, 1, 0);
3103
3104 rval = 1;
3105 break;
3106 } else {
3107 /*
3108 * unrecoverable / not handled error
3109 */
3110 DEBUG2(printk("%s(%ld): failed=%x port_id=%02x%02x%02x "
3111 "loop_id=%x jiffies=%lx.\n",
3112 __func__, ha->host_no, mb[0],
3113 fcport->d_id.b.domain, fcport->d_id.b.area,
3114 fcport->d_id.b.al_pa, fcport->loop_id, jiffies));
3115
3116 *next_loopid = fcport->loop_id;
3117 ha->isp_ops->fabric_logout(ha, fcport->loop_id,
3118 fcport->d_id.b.domain, fcport->d_id.b.area,
3119 fcport->d_id.b.al_pa);
3120 fcport->loop_id = FC_NO_LOOP_ID;
3121 fcport->login_retry = 0;
3122
3123 rval = 3;
3124 break;
3125 }
3126 }
3127
3128 return (rval);
3129 }
3130
3131 /*
3132 * qla2x00_local_device_login
3133 * Issue local device login command.
3134 *
3135 * Input:
3136 * ha = adapter block pointer.
3137 * loop_id = loop id of device to login to.
3138 *
3139 * Returns (Where's the #define!!!!):
3140 * 0 - Login successfully
3141 * 1 - Login failed
3142 * 3 - Fatal error
3143 */
3144 int
3145 qla2x00_local_device_login(scsi_qla_host_t *ha, fc_port_t *fcport)
3146 {
3147 int rval;
3148 uint16_t mb[MAILBOX_REGISTER_COUNT];
3149
3150 memset(mb, 0, sizeof(mb));
3151 rval = qla2x00_login_local_device(ha, fcport, mb, BIT_0);
3152 if (rval == QLA_SUCCESS) {
3153 /* Interrogate mailbox registers for any errors */
3154 if (mb[0] == MBS_COMMAND_ERROR)
3155 rval = 1;
3156 else if (mb[0] == MBS_COMMAND_PARAMETER_ERROR)
3157 /* device not in PCB table */
3158 rval = 3;
3159 }
3160
3161 return (rval);
3162 }
3163
3164 /*
3165 * qla2x00_loop_resync
3166 * Resync with fibre channel devices.
3167 *
3168 * Input:
3169 * ha = adapter block pointer.
3170 *
3171 * Returns:
3172 * 0 = success
3173 */
3174 int
3175 qla2x00_loop_resync(scsi_qla_host_t *ha)
3176 {
3177 int rval;
3178 uint32_t wait_time;
3179
3180 rval = QLA_SUCCESS;
3181
3182 atomic_set(&ha->loop_state, LOOP_UPDATE);
3183 clear_bit(ISP_ABORT_RETRY, &ha->dpc_flags);
3184 if (ha->flags.online) {
3185 if (!(rval = qla2x00_fw_ready(ha))) {
3186 /* Wait at most MAX_TARGET RSCNs for a stable link. */
3187 wait_time = 256;
3188 do {
3189 atomic_set(&ha->loop_state, LOOP_UPDATE);
3190
3191 /* Issue a marker after FW becomes ready. */
3192 qla2x00_marker(ha, 0, 0, MK_SYNC_ALL);
3193 ha->marker_needed = 0;
3194
3195 /* Remap devices on Loop. */
3196 clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
3197
3198 qla2x00_configure_loop(ha);
3199 wait_time--;
3200 } while (!atomic_read(&ha->loop_down_timer) &&
3201 !(test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) &&
3202 wait_time &&
3203 (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)));
3204 }
3205 }
3206
3207 if (test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
3208 return (QLA_FUNCTION_FAILED);
3209 }
3210
3211 if (rval) {
3212 DEBUG2_3(printk("%s(): **** FAILED ****\n", __func__));
3213 }
3214
3215 return (rval);
3216 }
3217
3218 void
3219 qla2x00_update_fcports(scsi_qla_host_t *ha)
3220 {
3221 fc_port_t *fcport;
3222
3223 /* Go with deferred removal of rport references. */
3224 list_for_each_entry(fcport, &ha->fcports, list)
3225 if (fcport->drport)
3226 qla2x00_rport_del(fcport);
3227 }
3228
3229 /*
3230 * qla2x00_abort_isp
3231 * Resets ISP and aborts all outstanding commands.
3232 *
3233 * Input:
3234 * ha = adapter block pointer.
3235 *
3236 * Returns:
3237 * 0 = success
3238 */
3239 int
3240 qla2x00_abort_isp(scsi_qla_host_t *ha)
3241 {
3242 int rval;
3243 uint8_t status = 0;
3244
3245 if (ha->flags.online) {
3246 ha->flags.online = 0;
3247 clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
3248 ha->qla_stats.total_isp_aborts++;
3249
3250 qla_printk(KERN_INFO, ha,
3251 "Performing ISP error recovery - ha= %p.\n", ha);
3252 ha->isp_ops->reset_chip(ha);
3253
3254 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
3255 if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
3256 atomic_set(&ha->loop_state, LOOP_DOWN);
3257 qla2x00_mark_all_devices_lost(ha, 0);
3258 } else {
3259 if (!atomic_read(&ha->loop_down_timer))
3260 atomic_set(&ha->loop_down_timer,
3261 LOOP_DOWN_TIME);
3262 }
3263
3264 /* Requeue all commands in outstanding command list. */
3265 qla2x00_abort_all_cmds(ha, DID_RESET << 16);
3266
3267 ha->isp_ops->get_flash_version(ha, ha->request_ring);
3268
3269 ha->isp_ops->nvram_config(ha);
3270
3271 if (!qla2x00_restart_isp(ha)) {
3272 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
3273
3274 if (!atomic_read(&ha->loop_down_timer)) {
3275 /*
3276 * Issue marker command only when we are going
3277 * to start the I/O .
3278 */
3279 ha->marker_needed = 1;
3280 }
3281
3282 ha->flags.online = 1;
3283
3284 ha->isp_ops->enable_intrs(ha);
3285
3286 ha->isp_abort_cnt = 0;
3287 clear_bit(ISP_ABORT_RETRY, &ha->dpc_flags);
3288
3289 if (ha->fce) {
3290 ha->flags.fce_enabled = 1;
3291 memset(ha->fce, 0,
3292 fce_calc_size(ha->fce_bufs));
3293 rval = qla2x00_enable_fce_trace(ha,
3294 ha->fce_dma, ha->fce_bufs, ha->fce_mb,
3295 &ha->fce_bufs);
3296 if (rval) {
3297 qla_printk(KERN_WARNING, ha,
3298 "Unable to reinitialize FCE "
3299 "(%d).\n", rval);
3300 ha->flags.fce_enabled = 0;
3301 }
3302 }
3303
3304 if (ha->eft) {
3305 memset(ha->eft, 0, EFT_SIZE);
3306 rval = qla2x00_enable_eft_trace(ha,
3307 ha->eft_dma, EFT_NUM_BUFFERS);
3308 if (rval) {
3309 qla_printk(KERN_WARNING, ha,
3310 "Unable to reinitialize EFT "
3311 "(%d).\n", rval);
3312 }
3313 }
3314 } else { /* failed the ISP abort */
3315 ha->flags.online = 1;
3316 if (test_bit(ISP_ABORT_RETRY, &ha->dpc_flags)) {
3317 if (ha->isp_abort_cnt == 0) {
3318 qla_printk(KERN_WARNING, ha,
3319 "ISP error recovery failed - "
3320 "board disabled\n");
3321 /*
3322 * The next call disables the board
3323 * completely.
3324 */
3325 ha->isp_ops->reset_adapter(ha);
3326 ha->flags.online = 0;
3327 clear_bit(ISP_ABORT_RETRY,
3328 &ha->dpc_flags);
3329 status = 0;
3330 } else { /* schedule another ISP abort */
3331 ha->isp_abort_cnt--;
3332 DEBUG(printk("qla%ld: ISP abort - "
3333 "retry remaining %d\n",
3334 ha->host_no, ha->isp_abort_cnt));
3335 status = 1;
3336 }
3337 } else {
3338 ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT;
3339 DEBUG(printk("qla2x00(%ld): ISP error recovery "
3340 "- retrying (%d) more times\n",
3341 ha->host_no, ha->isp_abort_cnt));
3342 set_bit(ISP_ABORT_RETRY, &ha->dpc_flags);
3343 status = 1;
3344 }
3345 }
3346
3347 }
3348
3349 if (status) {
3350 qla_printk(KERN_INFO, ha,
3351 "qla2x00_abort_isp: **** FAILED ****\n");
3352 } else {
3353 DEBUG(printk(KERN_INFO
3354 "qla2x00_abort_isp(%ld): exiting.\n",
3355 ha->host_no));
3356 }
3357
3358 return(status);
3359 }
3360
3361 /*
3362 * qla2x00_restart_isp
3363 * restarts the ISP after a reset
3364 *
3365 * Input:
3366 * ha = adapter block pointer.
3367 *
3368 * Returns:
3369 * 0 = success
3370 */
3371 static int
3372 qla2x00_restart_isp(scsi_qla_host_t *ha)
3373 {
3374 uint8_t status = 0;
3375 uint32_t wait_time;
3376
3377 /* If firmware needs to be loaded */
3378 if (qla2x00_isp_firmware(ha)) {
3379 ha->flags.online = 0;
3380 if (!(status = ha->isp_ops->chip_diag(ha)))
3381 status = qla2x00_setup_chip(ha);
3382 }
3383
3384 if (!status && !(status = qla2x00_init_rings(ha))) {
3385 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
3386 if (!(status = qla2x00_fw_ready(ha))) {
3387 DEBUG(printk("%s(): Start configure loop, "
3388 "status = %d\n", __func__, status));
3389
3390 /* Issue a marker after FW becomes ready. */
3391 qla2x00_marker(ha, 0, 0, MK_SYNC_ALL);
3392
3393 ha->flags.online = 1;
3394 /* Wait at most MAX_TARGET RSCNs for a stable link. */
3395 wait_time = 256;
3396 do {
3397 clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
3398 qla2x00_configure_loop(ha);
3399 wait_time--;
3400 } while (!atomic_read(&ha->loop_down_timer) &&
3401 !(test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) &&
3402 wait_time &&
3403 (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)));
3404 }
3405
3406 /* if no cable then assume it's good */
3407 if ((ha->device_flags & DFLG_NO_CABLE))
3408 status = 0;
3409
3410 DEBUG(printk("%s(): Configure loop done, status = 0x%x\n",
3411 __func__,
3412 status));
3413 }
3414 return (status);
3415 }
3416
3417 /*
3418 * qla2x00_reset_adapter
3419 * Reset adapter.
3420 *
3421 * Input:
3422 * ha = adapter block pointer.
3423 */
3424 void
3425 qla2x00_reset_adapter(scsi_qla_host_t *ha)
3426 {
3427 unsigned long flags = 0;
3428 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3429
3430 ha->flags.online = 0;
3431 ha->isp_ops->disable_intrs(ha);
3432
3433 spin_lock_irqsave(&ha->hardware_lock, flags);
3434 WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
3435 RD_REG_WORD(&reg->hccr); /* PCI Posting. */
3436 WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
3437 RD_REG_WORD(&reg->hccr); /* PCI Posting. */
3438 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3439 }
3440
3441 void
3442 qla24xx_reset_adapter(scsi_qla_host_t *ha)
3443 {
3444 unsigned long flags = 0;
3445 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
3446
3447 ha->flags.online = 0;
3448 ha->isp_ops->disable_intrs(ha);
3449
3450 spin_lock_irqsave(&ha->hardware_lock, flags);
3451 WRT_REG_DWORD(&reg->hccr, HCCRX_SET_RISC_RESET);
3452 RD_REG_DWORD(&reg->hccr);
3453 WRT_REG_DWORD(&reg->hccr, HCCRX_REL_RISC_PAUSE);
3454 RD_REG_DWORD(&reg->hccr);
3455 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3456 }
3457
3458 /* On sparc systems, obtain port and node WWN from firmware
3459 * properties.
3460 */
3461 static void qla24xx_nvram_wwn_from_ofw(scsi_qla_host_t *ha, struct nvram_24xx *nv)
3462 {
3463 #ifdef CONFIG_SPARC
3464 struct pci_dev *pdev = ha->pdev;
3465 struct device_node *dp = pci_device_to_OF_node(pdev);
3466 const u8 *val;
3467 int len;
3468
3469 val = of_get_property(dp, "port-wwn", &len);
3470 if (val && len >= WWN_SIZE)
3471 memcpy(nv->port_name, val, WWN_SIZE);
3472
3473 val = of_get_property(dp, "node-wwn", &len);
3474 if (val && len >= WWN_SIZE)
3475 memcpy(nv->node_name, val, WWN_SIZE);
3476 #endif
3477 }
3478
3479 int
3480 qla24xx_nvram_config(scsi_qla_host_t *ha)
3481 {
3482 int rval;
3483 struct init_cb_24xx *icb;
3484 struct nvram_24xx *nv;
3485 uint32_t *dptr;
3486 uint8_t *dptr1, *dptr2;
3487 uint32_t chksum;
3488 uint16_t cnt;
3489
3490 rval = QLA_SUCCESS;
3491 icb = (struct init_cb_24xx *)ha->init_cb;
3492 nv = ha->nvram;
3493
3494 /* Determine NVRAM starting address. */
3495 ha->nvram_size = sizeof(struct nvram_24xx);
3496 ha->nvram_base = FA_NVRAM_FUNC0_ADDR;
3497 ha->vpd_size = FA_NVRAM_VPD_SIZE;
3498 ha->vpd_base = FA_NVRAM_VPD0_ADDR;
3499 if (PCI_FUNC(ha->pdev->devfn)) {
3500 ha->nvram_base = FA_NVRAM_FUNC1_ADDR;
3501 ha->vpd_base = FA_NVRAM_VPD1_ADDR;
3502 }
3503
3504 /* Get VPD data into cache */
3505 ha->vpd = ha->nvram + VPD_OFFSET;
3506 ha->isp_ops->read_nvram(ha, (uint8_t *)ha->vpd,
3507 ha->nvram_base - FA_NVRAM_FUNC0_ADDR, FA_NVRAM_VPD_SIZE * 4);
3508
3509 /* Get NVRAM data into cache and calculate checksum. */
3510 dptr = (uint32_t *)nv;
3511 ha->isp_ops->read_nvram(ha, (uint8_t *)dptr, ha->nvram_base,
3512 ha->nvram_size);
3513 for (cnt = 0, chksum = 0; cnt < ha->nvram_size >> 2; cnt++)
3514 chksum += le32_to_cpu(*dptr++);
3515
3516 DEBUG5(printk("scsi(%ld): Contents of NVRAM\n", ha->host_no));
3517 DEBUG5(qla2x00_dump_buffer((uint8_t *)nv, ha->nvram_size));
3518
3519 /* Bad NVRAM data, set defaults parameters. */
3520 if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' || nv->id[2] != 'P'
3521 || nv->id[3] != ' ' ||
3522 nv->nvram_version < __constant_cpu_to_le16(ICB_VERSION)) {
3523 /* Reset NVRAM data. */
3524 qla_printk(KERN_WARNING, ha, "Inconsistent NVRAM detected: "
3525 "checksum=0x%x id=%c version=0x%x.\n", chksum, nv->id[0],
3526 le16_to_cpu(nv->nvram_version));
3527 qla_printk(KERN_WARNING, ha, "Falling back to functioning (yet "
3528 "invalid -- WWPN) defaults.\n");
3529
3530 /*
3531 * Set default initialization control block.
3532 */
3533 memset(nv, 0, ha->nvram_size);
3534 nv->nvram_version = __constant_cpu_to_le16(ICB_VERSION);
3535 nv->version = __constant_cpu_to_le16(ICB_VERSION);
3536 nv->frame_payload_size = __constant_cpu_to_le16(2048);
3537 nv->execution_throttle = __constant_cpu_to_le16(0xFFFF);
3538 nv->exchange_count = __constant_cpu_to_le16(0);
3539 nv->hard_address = __constant_cpu_to_le16(124);
3540 nv->port_name[0] = 0x21;
3541 nv->port_name[1] = 0x00 + PCI_FUNC(ha->pdev->devfn);
3542 nv->port_name[2] = 0x00;
3543 nv->port_name[3] = 0xe0;
3544 nv->port_name[4] = 0x8b;
3545 nv->port_name[5] = 0x1c;
3546 nv->port_name[6] = 0x55;
3547 nv->port_name[7] = 0x86;
3548 nv->node_name[0] = 0x20;
3549 nv->node_name[1] = 0x00;
3550 nv->node_name[2] = 0x00;
3551 nv->node_name[3] = 0xe0;
3552 nv->node_name[4] = 0x8b;
3553 nv->node_name[5] = 0x1c;
3554 nv->node_name[6] = 0x55;
3555 nv->node_name[7] = 0x86;
3556 qla24xx_nvram_wwn_from_ofw(ha, nv);
3557 nv->login_retry_count = __constant_cpu_to_le16(8);
3558 nv->interrupt_delay_timer = __constant_cpu_to_le16(0);
3559 nv->login_timeout = __constant_cpu_to_le16(0);
3560 nv->firmware_options_1 =
3561 __constant_cpu_to_le32(BIT_14|BIT_13|BIT_2|BIT_1);
3562 nv->firmware_options_2 = __constant_cpu_to_le32(2 << 4);
3563 nv->firmware_options_2 |= __constant_cpu_to_le32(BIT_12);
3564 nv->firmware_options_3 = __constant_cpu_to_le32(2 << 13);
3565 nv->host_p = __constant_cpu_to_le32(BIT_11|BIT_10);
3566 nv->efi_parameters = __constant_cpu_to_le32(0);
3567 nv->reset_delay = 5;
3568 nv->max_luns_per_target = __constant_cpu_to_le16(128);
3569 nv->port_down_retry_count = __constant_cpu_to_le16(30);
3570 nv->link_down_timeout = __constant_cpu_to_le16(30);
3571
3572 rval = 1;
3573 }
3574
3575 /* Reset Initialization control block */
3576 memset(icb, 0, sizeof(struct init_cb_24xx));
3577
3578 /* Copy 1st segment. */
3579 dptr1 = (uint8_t *)icb;
3580 dptr2 = (uint8_t *)&nv->version;
3581 cnt = (uint8_t *)&icb->response_q_inpointer - (uint8_t *)&icb->version;
3582 while (cnt--)
3583 *dptr1++ = *dptr2++;
3584
3585 icb->login_retry_count = nv->login_retry_count;
3586 icb->link_down_on_nos = nv->link_down_on_nos;
3587
3588 /* Copy 2nd segment. */
3589 dptr1 = (uint8_t *)&icb->interrupt_delay_timer;
3590 dptr2 = (uint8_t *)&nv->interrupt_delay_timer;
3591 cnt = (uint8_t *)&icb->reserved_3 -
3592 (uint8_t *)&icb->interrupt_delay_timer;
3593 while (cnt--)
3594 *dptr1++ = *dptr2++;
3595
3596 /*
3597 * Setup driver NVRAM options.
3598 */
3599 qla2x00_set_model_info(ha, nv->model_name, sizeof(nv->model_name),
3600 "QLA2462");
3601
3602 /* Use alternate WWN? */
3603 if (nv->host_p & __constant_cpu_to_le32(BIT_15)) {
3604 memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
3605 memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
3606 }
3607
3608 /* Prepare nodename */
3609 if ((icb->firmware_options_1 & __constant_cpu_to_le32(BIT_14)) == 0) {
3610 /*
3611 * Firmware will apply the following mask if the nodename was
3612 * not provided.
3613 */
3614 memcpy(icb->node_name, icb->port_name, WWN_SIZE);
3615 icb->node_name[0] &= 0xF0;
3616 }
3617
3618 /* Set host adapter parameters. */
3619 ha->flags.disable_risc_code_load = 0;
3620 ha->flags.enable_lip_reset = 0;
3621 ha->flags.enable_lip_full_login =
3622 le32_to_cpu(nv->host_p) & BIT_10 ? 1: 0;
3623 ha->flags.enable_target_reset =
3624 le32_to_cpu(nv->host_p) & BIT_11 ? 1: 0;
3625 ha->flags.enable_led_scheme = 0;
3626 ha->flags.disable_serdes = le32_to_cpu(nv->host_p) & BIT_5 ? 1: 0;
3627
3628 ha->operating_mode = (le32_to_cpu(icb->firmware_options_2) &
3629 (BIT_6 | BIT_5 | BIT_4)) >> 4;
3630
3631 memcpy(ha->fw_seriallink_options24, nv->seriallink_options,
3632 sizeof(ha->fw_seriallink_options24));
3633
3634 /* save HBA serial number */
3635 ha->serial0 = icb->port_name[5];
3636 ha->serial1 = icb->port_name[6];
3637 ha->serial2 = icb->port_name[7];
3638 ha->node_name = icb->node_name;
3639 ha->port_name = icb->port_name;
3640
3641 icb->execution_throttle = __constant_cpu_to_le16(0xFFFF);
3642
3643 ha->retry_count = le16_to_cpu(nv->login_retry_count);
3644
3645 /* Set minimum login_timeout to 4 seconds. */
3646 if (le16_to_cpu(nv->login_timeout) < ql2xlogintimeout)
3647 nv->login_timeout = cpu_to_le16(ql2xlogintimeout);
3648 if (le16_to_cpu(nv->login_timeout) < 4)
3649 nv->login_timeout = __constant_cpu_to_le16(4);
3650 ha->login_timeout = le16_to_cpu(nv->login_timeout);
3651 icb->login_timeout = nv->login_timeout;
3652
3653 /* Set minimum RATOV to 100 tenths of a second. */
3654 ha->r_a_tov = 100;
3655
3656 ha->loop_reset_delay = nv->reset_delay;
3657
3658 /* Link Down Timeout = 0:
3659 *
3660 * When Port Down timer expires we will start returning
3661 * I/O's to OS with "DID_NO_CONNECT".
3662 *
3663 * Link Down Timeout != 0:
3664 *
3665 * The driver waits for the link to come up after link down
3666 * before returning I/Os to OS with "DID_NO_CONNECT".
3667 */
3668 if (le16_to_cpu(nv->link_down_timeout) == 0) {
3669 ha->loop_down_abort_time =
3670 (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
3671 } else {
3672 ha->link_down_timeout = le16_to_cpu(nv->link_down_timeout);
3673 ha->loop_down_abort_time =
3674 (LOOP_DOWN_TIME - ha->link_down_timeout);
3675 }
3676
3677 /* Need enough time to try and get the port back. */
3678 ha->port_down_retry_count = le16_to_cpu(nv->port_down_retry_count);
3679 if (qlport_down_retry)
3680 ha->port_down_retry_count = qlport_down_retry;
3681
3682 /* Set login_retry_count */
3683 ha->login_retry_count = le16_to_cpu(nv->login_retry_count);
3684 if (ha->port_down_retry_count ==
3685 le16_to_cpu(nv->port_down_retry_count) &&
3686 ha->port_down_retry_count > 3)
3687 ha->login_retry_count = ha->port_down_retry_count;
3688 else if (ha->port_down_retry_count > (int)ha->login_retry_count)
3689 ha->login_retry_count = ha->port_down_retry_count;
3690 if (ql2xloginretrycount)
3691 ha->login_retry_count = ql2xloginretrycount;
3692
3693 /* Enable ZIO. */
3694 if (!ha->flags.init_done) {
3695 ha->zio_mode = le32_to_cpu(icb->firmware_options_2) &
3696 (BIT_3 | BIT_2 | BIT_1 | BIT_0);
3697 ha->zio_timer = le16_to_cpu(icb->interrupt_delay_timer) ?
3698 le16_to_cpu(icb->interrupt_delay_timer): 2;
3699 }
3700 icb->firmware_options_2 &= __constant_cpu_to_le32(
3701 ~(BIT_3 | BIT_2 | BIT_1 | BIT_0));
3702 ha->flags.process_response_queue = 0;
3703 if (ha->zio_mode != QLA_ZIO_DISABLED) {
3704 ha->zio_mode = QLA_ZIO_MODE_6;
3705
3706 DEBUG2(printk("scsi(%ld): ZIO mode %d enabled; timer delay "
3707 "(%d us).\n", ha->host_no, ha->zio_mode,
3708 ha->zio_timer * 100));
3709 qla_printk(KERN_INFO, ha,
3710 "ZIO mode %d enabled; timer delay (%d us).\n",
3711 ha->zio_mode, ha->zio_timer * 100);
3712
3713 icb->firmware_options_2 |= cpu_to_le32(
3714 (uint32_t)ha->zio_mode);
3715 icb->interrupt_delay_timer = cpu_to_le16(ha->zio_timer);
3716 ha->flags.process_response_queue = 1;
3717 }
3718
3719 if (rval) {
3720 DEBUG2_3(printk(KERN_WARNING
3721 "scsi(%ld): NVRAM configuration failed!\n", ha->host_no));
3722 }
3723 return (rval);
3724 }
3725
3726 static int
3727 qla24xx_load_risc_flash(scsi_qla_host_t *ha, uint32_t *srisc_addr)
3728 {
3729 int rval;
3730 int segments, fragment;
3731 uint32_t faddr;
3732 uint32_t *dcode, dlen;
3733 uint32_t risc_addr;
3734 uint32_t risc_size;
3735 uint32_t i;
3736
3737 rval = QLA_SUCCESS;
3738
3739 segments = FA_RISC_CODE_SEGMENTS;
3740 faddr = FA_RISC_CODE_ADDR;
3741 dcode = (uint32_t *)ha->request_ring;
3742 *srisc_addr = 0;
3743
3744 /* Validate firmware image by checking version. */
3745 qla24xx_read_flash_data(ha, dcode, faddr + 4, 4);
3746 for (i = 0; i < 4; i++)
3747 dcode[i] = be32_to_cpu(dcode[i]);
3748 if ((dcode[0] == 0xffffffff && dcode[1] == 0xffffffff &&
3749 dcode[2] == 0xffffffff && dcode[3] == 0xffffffff) ||
3750 (dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 &&
3751 dcode[3] == 0)) {
3752 qla_printk(KERN_WARNING, ha,
3753 "Unable to verify integrity of flash firmware image!\n");
3754 qla_printk(KERN_WARNING, ha,
3755 "Firmware data: %08x %08x %08x %08x!\n", dcode[0],
3756 dcode[1], dcode[2], dcode[3]);
3757
3758 return QLA_FUNCTION_FAILED;
3759 }
3760
3761 while (segments && rval == QLA_SUCCESS) {
3762 /* Read segment's load information. */
3763 qla24xx_read_flash_data(ha, dcode, faddr, 4);
3764
3765 risc_addr = be32_to_cpu(dcode[2]);
3766 *srisc_addr = *srisc_addr == 0 ? risc_addr : *srisc_addr;
3767 risc_size = be32_to_cpu(dcode[3]);
3768
3769 fragment = 0;
3770 while (risc_size > 0 && rval == QLA_SUCCESS) {
3771 dlen = (uint32_t)(ha->fw_transfer_size >> 2);
3772 if (dlen > risc_size)
3773 dlen = risc_size;
3774
3775 DEBUG7(printk("scsi(%ld): Loading risc segment@ risc "
3776 "addr %x, number of dwords 0x%x, offset 0x%x.\n",
3777 ha->host_no, risc_addr, dlen, faddr));
3778
3779 qla24xx_read_flash_data(ha, dcode, faddr, dlen);
3780 for (i = 0; i < dlen; i++)
3781 dcode[i] = swab32(dcode[i]);
3782
3783 rval = qla2x00_load_ram(ha, ha->request_dma, risc_addr,
3784 dlen);
3785 if (rval) {
3786 DEBUG(printk("scsi(%ld):[ERROR] Failed to load "
3787 "segment %d of firmware\n", ha->host_no,
3788 fragment));
3789 qla_printk(KERN_WARNING, ha,
3790 "[ERROR] Failed to load segment %d of "
3791 "firmware\n", fragment);
3792 break;
3793 }
3794
3795 faddr += dlen;
3796 risc_addr += dlen;
3797 risc_size -= dlen;
3798 fragment++;
3799 }
3800
3801 /* Next segment. */
3802 segments--;
3803 }
3804
3805 return rval;
3806 }
3807
3808 #define QLA_FW_URL "ftp://ftp.qlogic.com/outgoing/linux/firmware/"
3809
3810 int
3811 qla2x00_load_risc(scsi_qla_host_t *ha, uint32_t *srisc_addr)
3812 {
3813 int rval;
3814 int i, fragment;
3815 uint16_t *wcode, *fwcode;
3816 uint32_t risc_addr, risc_size, fwclen, wlen, *seg;
3817 struct fw_blob *blob;
3818
3819 /* Load firmware blob. */
3820 blob = qla2x00_request_firmware(ha);
3821 if (!blob) {
3822 qla_printk(KERN_ERR, ha, "Firmware image unavailable.\n");
3823 qla_printk(KERN_ERR, ha, "Firmware images can be retrieved "
3824 "from: " QLA_FW_URL ".\n");
3825 return QLA_FUNCTION_FAILED;
3826 }
3827
3828 rval = QLA_SUCCESS;
3829
3830 wcode = (uint16_t *)ha->request_ring;
3831 *srisc_addr = 0;
3832 fwcode = (uint16_t *)blob->fw->data;
3833 fwclen = 0;
3834
3835 /* Validate firmware image by checking version. */
3836 if (blob->fw->size < 8 * sizeof(uint16_t)) {
3837 qla_printk(KERN_WARNING, ha,
3838 "Unable to verify integrity of firmware image (%Zd)!\n",
3839 blob->fw->size);
3840 goto fail_fw_integrity;
3841 }
3842 for (i = 0; i < 4; i++)
3843 wcode[i] = be16_to_cpu(fwcode[i + 4]);
3844 if ((wcode[0] == 0xffff && wcode[1] == 0xffff && wcode[2] == 0xffff &&
3845 wcode[3] == 0xffff) || (wcode[0] == 0 && wcode[1] == 0 &&
3846 wcode[2] == 0 && wcode[3] == 0)) {
3847 qla_printk(KERN_WARNING, ha,
3848 "Unable to verify integrity of firmware image!\n");
3849 qla_printk(KERN_WARNING, ha,
3850 "Firmware data: %04x %04x %04x %04x!\n", wcode[0],
3851 wcode[1], wcode[2], wcode[3]);
3852 goto fail_fw_integrity;
3853 }
3854
3855 seg = blob->segs;
3856 while (*seg && rval == QLA_SUCCESS) {
3857 risc_addr = *seg;
3858 *srisc_addr = *srisc_addr == 0 ? *seg : *srisc_addr;
3859 risc_size = be16_to_cpu(fwcode[3]);
3860
3861 /* Validate firmware image size. */
3862 fwclen += risc_size * sizeof(uint16_t);
3863 if (blob->fw->size < fwclen) {
3864 qla_printk(KERN_WARNING, ha,
3865 "Unable to verify integrity of firmware image "
3866 "(%Zd)!\n", blob->fw->size);
3867 goto fail_fw_integrity;
3868 }
3869
3870 fragment = 0;
3871 while (risc_size > 0 && rval == QLA_SUCCESS) {
3872 wlen = (uint16_t)(ha->fw_transfer_size >> 1);
3873 if (wlen > risc_size)
3874 wlen = risc_size;
3875
3876 DEBUG7(printk("scsi(%ld): Loading risc segment@ risc "
3877 "addr %x, number of words 0x%x.\n", ha->host_no,
3878 risc_addr, wlen));
3879
3880 for (i = 0; i < wlen; i++)
3881 wcode[i] = swab16(fwcode[i]);
3882
3883 rval = qla2x00_load_ram(ha, ha->request_dma, risc_addr,
3884 wlen);
3885 if (rval) {
3886 DEBUG(printk("scsi(%ld):[ERROR] Failed to load "
3887 "segment %d of firmware\n", ha->host_no,
3888 fragment));
3889 qla_printk(KERN_WARNING, ha,
3890 "[ERROR] Failed to load segment %d of "
3891 "firmware\n", fragment);
3892 break;
3893 }
3894
3895 fwcode += wlen;
3896 risc_addr += wlen;
3897 risc_size -= wlen;
3898 fragment++;
3899 }
3900
3901 /* Next segment. */
3902 seg++;
3903 }
3904 return rval;
3905
3906 fail_fw_integrity:
3907 return QLA_FUNCTION_FAILED;
3908 }
3909
3910 int
3911 qla24xx_load_risc(scsi_qla_host_t *ha, uint32_t *srisc_addr)
3912 {
3913 int rval;
3914 int segments, fragment;
3915 uint32_t *dcode, dlen;
3916 uint32_t risc_addr;
3917 uint32_t risc_size;
3918 uint32_t i;
3919 struct fw_blob *blob;
3920 uint32_t *fwcode, fwclen;
3921
3922 /* Load firmware blob. */
3923 blob = qla2x00_request_firmware(ha);
3924 if (!blob) {
3925 qla_printk(KERN_ERR, ha, "Firmware image unavailable.\n");
3926 qla_printk(KERN_ERR, ha, "Firmware images can be retrieved "
3927 "from: " QLA_FW_URL ".\n");
3928
3929 /* Try to load RISC code from flash. */
3930 qla_printk(KERN_ERR, ha, "Attempting to load (potentially "
3931 "outdated) firmware from flash.\n");
3932 return qla24xx_load_risc_flash(ha, srisc_addr);
3933 }
3934
3935 rval = QLA_SUCCESS;
3936
3937 segments = FA_RISC_CODE_SEGMENTS;
3938 dcode = (uint32_t *)ha->request_ring;
3939 *srisc_addr = 0;
3940 fwcode = (uint32_t *)blob->fw->data;
3941 fwclen = 0;
3942
3943 /* Validate firmware image by checking version. */
3944 if (blob->fw->size < 8 * sizeof(uint32_t)) {
3945 qla_printk(KERN_WARNING, ha,
3946 "Unable to verify integrity of firmware image (%Zd)!\n",
3947 blob->fw->size);
3948 goto fail_fw_integrity;
3949 }
3950 for (i = 0; i < 4; i++)
3951 dcode[i] = be32_to_cpu(fwcode[i + 4]);
3952 if ((dcode[0] == 0xffffffff && dcode[1] == 0xffffffff &&
3953 dcode[2] == 0xffffffff && dcode[3] == 0xffffffff) ||
3954 (dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 &&
3955 dcode[3] == 0)) {
3956 qla_printk(KERN_WARNING, ha,
3957 "Unable to verify integrity of firmware image!\n");
3958 qla_printk(KERN_WARNING, ha,
3959 "Firmware data: %08x %08x %08x %08x!\n", dcode[0],
3960 dcode[1], dcode[2], dcode[3]);
3961 goto fail_fw_integrity;
3962 }
3963
3964 while (segments && rval == QLA_SUCCESS) {
3965 risc_addr = be32_to_cpu(fwcode[2]);
3966 *srisc_addr = *srisc_addr == 0 ? risc_addr : *srisc_addr;
3967 risc_size = be32_to_cpu(fwcode[3]);
3968
3969 /* Validate firmware image size. */
3970 fwclen += risc_size * sizeof(uint32_t);
3971 if (blob->fw->size < fwclen) {
3972 qla_printk(KERN_WARNING, ha,
3973 "Unable to verify integrity of firmware image "
3974 "(%Zd)!\n", blob->fw->size);
3975
3976 goto fail_fw_integrity;
3977 }
3978
3979 fragment = 0;
3980 while (risc_size > 0 && rval == QLA_SUCCESS) {
3981 dlen = (uint32_t)(ha->fw_transfer_size >> 2);
3982 if (dlen > risc_size)
3983 dlen = risc_size;
3984
3985 DEBUG7(printk("scsi(%ld): Loading risc segment@ risc "
3986 "addr %x, number of dwords 0x%x.\n", ha->host_no,
3987 risc_addr, dlen));
3988
3989 for (i = 0; i < dlen; i++)
3990 dcode[i] = swab32(fwcode[i]);
3991
3992 rval = qla2x00_load_ram(ha, ha->request_dma, risc_addr,
3993 dlen);
3994 if (rval) {
3995 DEBUG(printk("scsi(%ld):[ERROR] Failed to load "
3996 "segment %d of firmware\n", ha->host_no,
3997 fragment));
3998 qla_printk(KERN_WARNING, ha,
3999 "[ERROR] Failed to load segment %d of "
4000 "firmware\n", fragment);
4001 break;
4002 }
4003
4004 fwcode += dlen;
4005 risc_addr += dlen;
4006 risc_size -= dlen;
4007 fragment++;
4008 }
4009
4010 /* Next segment. */
4011 segments--;
4012 }
4013 return rval;
4014
4015 fail_fw_integrity:
4016 return QLA_FUNCTION_FAILED;
4017 }
4018
4019 void
4020 qla2x00_try_to_stop_firmware(scsi_qla_host_t *ha)
4021 {
4022 int ret, retries;
4023
4024 if (!IS_FWI2_CAPABLE(ha))
4025 return;
4026 if (!ha->fw_major_version)
4027 return;
4028
4029 ret = qla2x00_stop_firmware(ha);
4030 for (retries = 5; ret != QLA_SUCCESS && ret != QLA_FUNCTION_TIMEOUT &&
4031 retries ; retries--) {
4032 qla2x00_reset_chip(ha);
4033 if (qla2x00_chip_diag(ha) != QLA_SUCCESS)
4034 continue;
4035 if (qla2x00_setup_chip(ha) != QLA_SUCCESS)
4036 continue;
4037 qla_printk(KERN_INFO, ha,
4038 "Attempting retry of stop-firmware command...\n");
4039 ret = qla2x00_stop_firmware(ha);
4040 }
4041 }
4042
4043 int
4044 qla24xx_configure_vhba(scsi_qla_host_t *ha)
4045 {
4046 int rval = QLA_SUCCESS;
4047 uint16_t mb[MAILBOX_REGISTER_COUNT];
4048
4049 if (!ha->parent)
4050 return -EINVAL;
4051
4052 rval = qla2x00_fw_ready(ha->parent);
4053 if (rval == QLA_SUCCESS) {
4054 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
4055 qla2x00_marker(ha, 0, 0, MK_SYNC_ALL);
4056 }
4057
4058 ha->flags.management_server_logged_in = 0;
4059
4060 /* Login to SNS first */
4061 qla24xx_login_fabric(ha->parent, NPH_SNS, 0xff, 0xff, 0xfc,
4062 mb, BIT_1);
4063 if (mb[0] != MBS_COMMAND_COMPLETE) {
4064 DEBUG15(qla_printk(KERN_INFO, ha,
4065 "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x "
4066 "mb[2]=%x mb[6]=%x mb[7]=%x\n", NPH_SNS,
4067 mb[0], mb[1], mb[2], mb[6], mb[7]));
4068 return (QLA_FUNCTION_FAILED);
4069 }
4070
4071 atomic_set(&ha->loop_down_timer, 0);
4072 atomic_set(&ha->loop_state, LOOP_UP);
4073 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
4074 set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
4075 rval = qla2x00_loop_resync(ha->parent);
4076
4077 return rval;
4078 }
4079
4080 /* 84XX Support **************************************************************/
4081
4082 static LIST_HEAD(qla_cs84xx_list);
4083 static DEFINE_MUTEX(qla_cs84xx_mutex);
4084
4085 static struct qla_chip_state_84xx *
4086 qla84xx_get_chip(struct scsi_qla_host *ha)
4087 {
4088 struct qla_chip_state_84xx *cs84xx;
4089
4090 mutex_lock(&qla_cs84xx_mutex);
4091
4092 /* Find any shared 84xx chip. */
4093 list_for_each_entry(cs84xx, &qla_cs84xx_list, list) {
4094 if (cs84xx->bus == ha->pdev->bus) {
4095 kref_get(&cs84xx->kref);
4096 goto done;
4097 }
4098 }
4099
4100 cs84xx = kzalloc(sizeof(*cs84xx), GFP_KERNEL);
4101 if (!cs84xx)
4102 goto done;
4103
4104 kref_init(&cs84xx->kref);
4105 spin_lock_init(&cs84xx->access_lock);
4106 mutex_init(&cs84xx->fw_update_mutex);
4107 cs84xx->bus = ha->pdev->bus;
4108
4109 list_add_tail(&cs84xx->list, &qla_cs84xx_list);
4110 done:
4111 mutex_unlock(&qla_cs84xx_mutex);
4112 return cs84xx;
4113 }
4114
4115 static void
4116 __qla84xx_chip_release(struct kref *kref)
4117 {
4118 struct qla_chip_state_84xx *cs84xx =
4119 container_of(kref, struct qla_chip_state_84xx, kref);
4120
4121 mutex_lock(&qla_cs84xx_mutex);
4122 list_del(&cs84xx->list);
4123 mutex_unlock(&qla_cs84xx_mutex);
4124 kfree(cs84xx);
4125 }
4126
4127 void
4128 qla84xx_put_chip(struct scsi_qla_host *ha)
4129 {
4130 if (ha->cs84xx)
4131 kref_put(&ha->cs84xx->kref, __qla84xx_chip_release);
4132 }
4133
4134 static int
4135 qla84xx_init_chip(scsi_qla_host_t *ha)
4136 {
4137 int rval;
4138 uint16_t status[2];
4139
4140 mutex_lock(&ha->cs84xx->fw_update_mutex);
4141
4142 rval = qla84xx_verify_chip(ha, status);
4143
4144 mutex_unlock(&ha->cs84xx->fw_update_mutex);
4145
4146 return rval != QLA_SUCCESS || status[0] ? QLA_FUNCTION_FAILED:
4147 QLA_SUCCESS;
4148 }
linux kernel for loongson