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[SCSI] mptfusion: correct Kconfig problem
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / scsi / qla2xxx / qla_init.c
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1da177e4
LT		 1/*
2 * QLOGIC LINUX SOFTWARE
3 *
4 * QLogic ISP2x00 device driver for Linux 2.6.x
5 * Copyright (C) 2003-2004 QLogic Corporation
6 * (www.qlogic.com)
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2, or (at your option) any
11 * later version.
12 *
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
17 *
18 */
19#include "qla_def.h"
20
21#include <linux/delay.h>
8482e118 22#include <scsi/scsi_transport_fc.h>
1da177e4
LT		 23
24#include "qla_devtbl.h"
25
26/* XXX(hch): this is ugly, but we don't want to pull in exioctl.h */
27#ifndef EXT_IS_LUN_BIT_SET
28#define EXT_IS_LUN_BIT_SET(P,L) \
29 (((P)->mask[L/8] & (0x80 >> (L%8)))?1:0)
30#define EXT_SET_LUN_BIT(P,L) \
31 ((P)->mask[L/8] |= (0x80 >> (L%8)))
32#endif
33
34/*
35* QLogic ISP2x00 Hardware Support Function Prototypes.
36*/
37static int qla2x00_pci_config(scsi_qla_host_t *);
38static int qla2x00_isp_firmware(scsi_qla_host_t *);
39static void qla2x00_reset_chip(scsi_qla_host_t *);
40static int qla2x00_chip_diag(scsi_qla_host_t *);
41static void qla2x00_resize_request_q(scsi_qla_host_t *);
42static int qla2x00_setup_chip(scsi_qla_host_t *);
43static void qla2x00_init_response_q_entries(scsi_qla_host_t *);
44static int qla2x00_init_rings(scsi_qla_host_t *);
45static int qla2x00_fw_ready(scsi_qla_host_t *);
46static int qla2x00_configure_hba(scsi_qla_host_t *);
47static int qla2x00_nvram_config(scsi_qla_host_t *);
1da177e4
LT		 48static int qla2x00_configure_loop(scsi_qla_host_t *);
49static int qla2x00_configure_local_loop(scsi_qla_host_t *);
50static void qla2x00_update_fcport(scsi_qla_host_t *, fc_port_t *);
1da177e4
LT		 51static int qla2x00_configure_fabric(scsi_qla_host_t *);
52static int qla2x00_find_all_fabric_devs(scsi_qla_host_t *, struct list_head *);
53static int qla2x00_device_resync(scsi_qla_host_t *);
54static int qla2x00_fabric_dev_login(scsi_qla_host_t *, fc_port_t *,
55 uint16_t *);
1da177e4
LT		 56
57static int qla2x00_restart_isp(scsi_qla_host_t *);
58static void qla2x00_reset_adapter(scsi_qla_host_t *);
1da177e4
LT		 59
60/****************************************************************************/
61/* QLogic ISP2x00 Hardware Support Functions. */
62/****************************************************************************/
63
64/*
65* qla2x00_initialize_adapter
66* Initialize board.
67*
68* Input:
69* ha = adapter block pointer.
70*
71* Returns:
72* 0 = success
73*/
74int
75qla2x00_initialize_adapter(scsi_qla_host_t *ha)
76{
77 int rval;
78 uint8_t restart_risc = 0;
79 uint8_t retry;
80 uint32_t wait_time;
81
82 /* Clear adapter flags. */
83 ha->flags.online = 0;
84 ha->flags.reset_active = 0;
85 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
86 atomic_set(&ha->loop_state, LOOP_DOWN);
87 ha->device_flags = 0;
88 ha->sns_retry_cnt = 0;
89 ha->dpc_flags = 0;
90 ha->failback_delay = 0;
91 ha->flags.management_server_logged_in = 0;
92 ha->marker_needed = 0;
93 ha->mbx_flags = 0;
94 ha->isp_abort_cnt = 0;
95 ha->beacon_blink_led = 0;
96
97 rval = qla2x00_pci_config(ha);
98 if (rval) {
99 DEBUG2(printk("scsi(%ld): Unable to configure PCI space=n",
100 ha->host_no));
101 return (rval);
102 }
103
104 qla2x00_reset_chip(ha);
105
1da177e4
LT		 106 qla_printk(KERN_INFO, ha, "Configure NVRAM parameters...\n");
107 qla2x00_nvram_config(ha);
108
109 qla_printk(KERN_INFO, ha, "Verifying loaded RISC code...\n");
110
111 retry = 10;
112 /*
113 * Try to configure the loop.
114 */
115 do {
116 restart_risc = 0;
117
118 /* If firmware needs to be loaded */
119 if (qla2x00_isp_firmware(ha) != QLA_SUCCESS) {
120 if ((rval = qla2x00_chip_diag(ha)) == QLA_SUCCESS) {
121 rval = qla2x00_setup_chip(ha);
122 }
123 }
124
125 if (rval == QLA_SUCCESS &&
126 (rval = qla2x00_init_rings(ha)) == QLA_SUCCESS) {
127check_fw_ready_again:
128 /*
129 * Wait for a successful LIP up to a maximum
130 * of (in seconds): RISC login timeout value,
131 * RISC retry count value, and port down retry
132 * value OR a minimum of 4 seconds OR If no
133 * cable, only 5 seconds.
134 */
135 rval = qla2x00_fw_ready(ha);
136 if (rval == QLA_SUCCESS) {
137 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
138
139 /*
140 * Wait at most MAX_TARGET RSCNs for a stable
141 * link.
142 */
143 wait_time = 256;
144 do {
145 clear_bit(LOOP_RESYNC_NEEDED,
146 &ha->dpc_flags);
147 rval = qla2x00_configure_loop(ha);
148
149 if (test_and_clear_bit(ISP_ABORT_NEEDED,
150 &ha->dpc_flags)) {
151 restart_risc = 1;
152 break;
153 }
154
155 /*
156 * If loop state change while we were
157 * discoverying devices then wait for
158 * LIP to complete
159 */
160
161 if (atomic_read(&ha->loop_state) ==
162 LOOP_DOWN && retry--) {
163 goto check_fw_ready_again;
164 }
165 wait_time--;
166 } while (!atomic_read(&ha->loop_down_timer) &&
167 retry &&
168 wait_time &&
169 (test_bit(LOOP_RESYNC_NEEDED,
170 &ha->dpc_flags)));
171
172 if (wait_time == 0)
173 rval = QLA_FUNCTION_FAILED;
174 if (ha->mem_err)
175 restart_risc = 1;
176 } else if (ha->device_flags & DFLG_NO_CABLE)
177 /* If no cable, then all is good. */
178 rval = QLA_SUCCESS;
179 }
180 } while (restart_risc && retry--);
181
182 if (rval == QLA_SUCCESS) {
183 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
184 ha->marker_needed = 1;
185 qla2x00_marker(ha, 0, 0, MK_SYNC_ALL);
186 ha->marker_needed = 0;
187
188 ha->flags.online = 1;
189 } else {
190 DEBUG2_3(printk("%s(): **** FAILED ****\n", __func__));
191 }
192
193 return (rval);
194}
195
196/**
197 * qla2x00_pci_config() - Setup device PCI configuration registers.
198 * @ha: HA context
199 *
200 * Returns 0 on success.
201 */
202static int
203qla2x00_pci_config(scsi_qla_host_t *ha)
204{
205 uint16_t w, mwi;
206 unsigned long flags = 0;
207 uint32_t cnt;
208
209 qla_printk(KERN_INFO, ha, "Configuring PCI space...\n");
210
211 /*
212 * Turn on PCI master; for system BIOSes that don't turn it on by
213 * default.
214 */
215 pci_set_master(ha->pdev);
216 mwi = 0;
217 if (pci_set_mwi(ha->pdev))
218 mwi = PCI_COMMAND_INVALIDATE;
219 pci_read_config_word(ha->pdev, PCI_REVISION_ID, &ha->revision);
220
221 if (!ha->iobase)
222 return (QLA_FUNCTION_FAILED);
223
224 /*
225 * We want to respect framework's setting of PCI configuration space
226 * command register and also want to make sure that all bits of
227 * interest to us are properly set in command register.
228 */
229 pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
230 w |= mwi | (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
231
232 /* Get PCI bus information. */
233 spin_lock_irqsave(&ha->hardware_lock, flags);
234 ha->pci_attr = RD_REG_WORD(&ha->iobase->ctrl_status);
235 spin_unlock_irqrestore(&ha->hardware_lock, flags);
236
237 if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) {
238 pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);
239
240 /* PCI Specification Revision 2.3 changes */
241 if (IS_QLA2322(ha) || IS_QLA6322(ha))
242 /* Command Register - Reset Interrupt Disable. */
243 w &= ~PCI_COMMAND_INTX_DISABLE;
244
245 /*
246 * If this is a 2300 card and not 2312, reset the
247 * COMMAND_INVALIDATE due to a bug in the 2300. Unfortunately,
248 * the 2310 also reports itself as a 2300 so we need to get the
249 * fb revision level -- a 6 indicates it really is a 2300 and
250 * not a 2310.
251 */
252 if (IS_QLA2300(ha)) {
253 spin_lock_irqsave(&ha->hardware_lock, flags);
254
255 /* Pause RISC. */
256 WRT_REG_WORD(&ha->iobase->hccr, HCCR_PAUSE_RISC);
257 for (cnt = 0; cnt < 30000; cnt++) {
258 if ((RD_REG_WORD(&ha->iobase->hccr) &
259 HCCR_RISC_PAUSE) != 0)
260 break;
261
262 udelay(10);
263 }
264
265 /* Select FPM registers. */
266 WRT_REG_WORD(&ha->iobase->ctrl_status, 0x20);
267 RD_REG_WORD(&ha->iobase->ctrl_status);
268
269 /* Get the fb rev level */
270 ha->fb_rev = RD_FB_CMD_REG(ha, ha->iobase);
271
272 if (ha->fb_rev == FPM_2300)
273 w &= ~PCI_COMMAND_INVALIDATE;
274
275 /* Deselect FPM registers. */
276 WRT_REG_WORD(&ha->iobase->ctrl_status, 0x0);
277 RD_REG_WORD(&ha->iobase->ctrl_status);
278
279 /* Release RISC module. */
280 WRT_REG_WORD(&ha->iobase->hccr, HCCR_RELEASE_RISC);
281 for (cnt = 0; cnt < 30000; cnt++) {
282 if ((RD_REG_WORD(&ha->iobase->hccr) &
283 HCCR_RISC_PAUSE) == 0)
284 break;
285
286 udelay(10);
287 }
288
289 spin_unlock_irqrestore(&ha->hardware_lock, flags);
290 }
291 }
292
293 pci_write_config_word(ha->pdev, PCI_COMMAND, w);
294
295 /* Reset expansion ROM address decode enable */
296 pci_read_config_word(ha->pdev, PCI_ROM_ADDRESS, &w);
297 w &= ~PCI_ROM_ADDRESS_ENABLE;
298 pci_write_config_word(ha->pdev, PCI_ROM_ADDRESS, w);
299
300 return (QLA_SUCCESS);
301}
302
303/**
304 * qla2x00_isp_firmware() - Choose firmware image.
305 * @ha: HA context
306 *
307 * Returns 0 on success.
308 */
309static int
310qla2x00_isp_firmware(scsi_qla_host_t *ha)
311{
312 int rval;
313
314 /* Assume loading risc code */
315 rval = QLA_FUNCTION_FAILED;
316
317 if (ha->flags.disable_risc_code_load) {
318 DEBUG2(printk("scsi(%ld): RISC CODE NOT loaded\n",
319 ha->host_no));
320 qla_printk(KERN_INFO, ha, "RISC CODE NOT loaded\n");
321
322 /* Verify checksum of loaded RISC code. */
323 rval = qla2x00_verify_checksum(ha);
324 }
325
326 if (rval) {
327 DEBUG2_3(printk("scsi(%ld): **** Load RISC code ****\n",
328 ha->host_no));
329 }
330
331 return (rval);
332}
333
334/**
335 * qla2x00_reset_chip() - Reset ISP chip.
336 * @ha: HA context
337 *
338 * Returns 0 on success.
339 */
340static void
341qla2x00_reset_chip(scsi_qla_host_t *ha)
342{
343 unsigned long flags = 0;
344 device_reg_t __iomem *reg = ha->iobase;
345 uint32_t cnt;
346 unsigned long mbx_flags = 0;
347 uint16_t cmd;
348
349 /* Disable ISP interrupts. */
350 qla2x00_disable_intrs(ha);
351
352 spin_lock_irqsave(&ha->hardware_lock, flags);
353
354 /* Turn off master enable */
355 cmd = 0;
356 pci_read_config_word(ha->pdev, PCI_COMMAND, &cmd);
357 cmd &= ~PCI_COMMAND_MASTER;
358 pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);
359
360 if (!IS_QLA2100(ha)) {
361 /* Pause RISC. */
362 WRT_REG_WORD(&reg->hccr, HCCR_PAUSE_RISC);
363 if (IS_QLA2200(ha) || IS_QLA2300(ha)) {
364 for (cnt = 0; cnt < 30000; cnt++) {
365 if ((RD_REG_WORD(&reg->hccr) &
366 HCCR_RISC_PAUSE) != 0)
367 break;
368 udelay(100);
369 }
370 } else {
371 RD_REG_WORD(&reg->hccr); /* PCI Posting. */
372 udelay(10);
373 }
374
375 /* Select FPM registers. */
376 WRT_REG_WORD(&reg->ctrl_status, 0x20);
377 RD_REG_WORD(&reg->ctrl_status); /* PCI Posting. */
378
379 /* FPM Soft Reset. */
380 WRT_REG_WORD(&reg->fpm_diag_config, 0x100);
381 RD_REG_WORD(&reg->fpm_diag_config); /* PCI Posting. */
382
383 /* Toggle Fpm Reset. */
384 if (!IS_QLA2200(ha)) {
385 WRT_REG_WORD(&reg->fpm_diag_config, 0x0);
386 RD_REG_WORD(&reg->fpm_diag_config); /* PCI Posting. */
387 }
388
389 /* Select frame buffer registers. */
390 WRT_REG_WORD(&reg->ctrl_status, 0x10);
391 RD_REG_WORD(&reg->ctrl_status); /* PCI Posting. */
392
393 /* Reset frame buffer FIFOs. */
394 if (IS_QLA2200(ha)) {
395 WRT_FB_CMD_REG(ha, reg, 0xa000);
396 RD_FB_CMD_REG(ha, reg); /* PCI Posting. */
397 } else {
398 WRT_FB_CMD_REG(ha, reg, 0x00fc);
399
400 /* Read back fb_cmd until zero or 3 seconds max */
401 for (cnt = 0; cnt < 3000; cnt++) {
402 if ((RD_FB_CMD_REG(ha, reg) & 0xff) == 0)
403 break;
404 udelay(100);
405 }
406 }
407
408 /* Select RISC module registers. */
409 WRT_REG_WORD(&reg->ctrl_status, 0);
410 RD_REG_WORD(&reg->ctrl_status); /* PCI Posting. */
411
412 /* Reset RISC processor. */
413 WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
414 RD_REG_WORD(&reg->hccr); /* PCI Posting. */
415
416 /* Release RISC processor. */
417 WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
418 RD_REG_WORD(&reg->hccr); /* PCI Posting. */
419 }
420
421 WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
422 WRT_REG_WORD(&reg->hccr, HCCR_CLR_HOST_INT);
423
424 /* Reset ISP chip. */
425 WRT_REG_WORD(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
426
427 /* Wait for RISC to recover from reset. */
428 if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
429 /*
430 * It is necessary to for a delay here since the card doesn't
431 * respond to PCI reads during a reset. On some architectures
432 * this will result in an MCA.
433 */
434 udelay(20);
435 for (cnt = 30000; cnt; cnt--) {
436 if ((RD_REG_WORD(&reg->ctrl_status) &
437 CSR_ISP_SOFT_RESET) == 0)
438 break;
439 udelay(100);
440 }
441 } else
442 udelay(10);
443
444 /* Reset RISC processor. */
445 WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
446
447 WRT_REG_WORD(&reg->semaphore, 0);
448
449 /* Release RISC processor. */
450 WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
451 RD_REG_WORD(&reg->hccr); /* PCI Posting. */
452
453 if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
454 for (cnt = 0; cnt < 30000; cnt++) {
455 if (!(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)))
456 spin_lock_irqsave(&ha->mbx_reg_lock, mbx_flags);
457
458 if (RD_MAILBOX_REG(ha, reg, 0) != MBS_BUSY) {
459 if (!(test_bit(ABORT_ISP_ACTIVE,
460 &ha->dpc_flags)))
461 spin_unlock_irqrestore(
462 &ha->mbx_reg_lock, mbx_flags);
463 break;
464 }
465
466 if (!(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)))
467 spin_unlock_irqrestore(&ha->mbx_reg_lock,
468 mbx_flags);
469
470 udelay(100);
471 }
472 } else
473 udelay(100);
474
475 /* Turn on master enable */
476 cmd |= PCI_COMMAND_MASTER;
477 pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);
478
479 /* Disable RISC pause on FPM parity error. */
480 if (!IS_QLA2100(ha)) {
481 WRT_REG_WORD(&reg->hccr, HCCR_DISABLE_PARITY_PAUSE);
482 RD_REG_WORD(&reg->hccr); /* PCI Posting. */
483 }
484
485 spin_unlock_irqrestore(&ha->hardware_lock, flags);
486}
487
488/**
489 * qla2x00_chip_diag() - Test chip for proper operation.
490 * @ha: HA context
491 *
492 * Returns 0 on success.
493 */
494static int
495qla2x00_chip_diag(scsi_qla_host_t *ha)
496{
497 int rval;
498 device_reg_t __iomem *reg = ha->iobase;
499 unsigned long flags = 0;
500 uint16_t data;
501 uint32_t cnt;
502 uint16_t mb[5];
503
504 /* Assume a failed state */
505 rval = QLA_FUNCTION_FAILED;
506
507 DEBUG3(printk("scsi(%ld): Testing device at %lx.\n",
508 ha->host_no, (u_long)&reg->flash_address));
509
510 spin_lock_irqsave(&ha->hardware_lock, flags);
511
512 /* Reset ISP chip. */
513 WRT_REG_WORD(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
514
515 /*
516 * We need to have a delay here since the card will not respond while
517 * in reset causing an MCA on some architectures.
518 */
519 udelay(20);
520 data = qla2x00_debounce_register(&reg->ctrl_status);
521 for (cnt = 6000000 ; cnt && (data & CSR_ISP_SOFT_RESET); cnt--) {
522 udelay(5);
523 data = RD_REG_WORD(&reg->ctrl_status);
524 barrier();
525 }
526
527 if (!cnt)
528 goto chip_diag_failed;
529
530 DEBUG3(printk("scsi(%ld): Reset register cleared by chip reset\n",
531 ha->host_no));
532
533 /* Reset RISC processor. */
534 WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
535 WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
536
537 /* Workaround for QLA2312 PCI parity error */
538 if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
539 data = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 0));
540 for (cnt = 6000000; cnt && (data == MBS_BUSY); cnt--) {
541 udelay(5);
542 data = RD_MAILBOX_REG(ha, reg, 0);
543 barrier();
544 }
545 } else
546 udelay(10);
547
548 if (!cnt)
549 goto chip_diag_failed;
550
551 /* Check product ID of chip */
552 DEBUG3(printk("scsi(%ld): Checking product ID of chip\n", ha->host_no));
553
554 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
555 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
556 mb[3] = RD_MAILBOX_REG(ha, reg, 3);
557 mb[4] = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 4));
558 if (mb[1] != PROD_ID_1 || (mb[2] != PROD_ID_2 && mb[2] != PROD_ID_2a) ||
559 mb[3] != PROD_ID_3) {
560 qla_printk(KERN_WARNING, ha,
561 "Wrong product ID = 0x%x,0x%x,0x%x\n", mb[1], mb[2], mb[3]);
562
563 goto chip_diag_failed;
564 }
565 ha->product_id[0] = mb[1];
566 ha->product_id[1] = mb[2];
567 ha->product_id[2] = mb[3];
568 ha->product_id[3] = mb[4];
569
570 /* Adjust fw RISC transfer size */
571 if (ha->request_q_length > 1024)
572 ha->fw_transfer_size = REQUEST_ENTRY_SIZE * 1024;
573 else
574 ha->fw_transfer_size = REQUEST_ENTRY_SIZE *
575 ha->request_q_length;
576
577 if (IS_QLA2200(ha) &&
578 RD_MAILBOX_REG(ha, reg, 7) == QLA2200A_RISC_ROM_VER) {
579 /* Limit firmware transfer size with a 2200A */
580 DEBUG3(printk("scsi(%ld): Found QLA2200A chip.\n",
581 ha->host_no));
582
583 ha->fw_transfer_size = 128;
584 }
585
586 /* Wrap Incoming Mailboxes Test. */
587 spin_unlock_irqrestore(&ha->hardware_lock, flags);
588
589 DEBUG3(printk("scsi(%ld): Checking mailboxes.\n", ha->host_no));
590 rval = qla2x00_mbx_reg_test(ha);
591 if (rval) {
592 DEBUG(printk("scsi(%ld): Failed mailbox send register test\n",
593 ha->host_no));
594 qla_printk(KERN_WARNING, ha,
595 "Failed mailbox send register test\n");
596 }
597 else {
598 /* Flag a successful rval */
599 rval = QLA_SUCCESS;
600 }
601 spin_lock_irqsave(&ha->hardware_lock, flags);
602
603chip_diag_failed:
604 if (rval)
605 DEBUG2_3(printk("scsi(%ld): Chip diagnostics **** FAILED "
606 "****\n", ha->host_no));
607
608 spin_unlock_irqrestore(&ha->hardware_lock, flags);
609
610 return (rval);
611}
612
613/**
614 * qla2x00_resize_request_q() - Resize request queue given available ISP memory.
615 * @ha: HA context
616 *
617 * Returns 0 on success.
618 */
619static void
620qla2x00_resize_request_q(scsi_qla_host_t *ha)
621{
622 int rval;
623 uint16_t fw_iocb_cnt = 0;
624 uint16_t request_q_length = REQUEST_ENTRY_CNT_2XXX_EXT_MEM;
625 dma_addr_t request_dma;
626 request_t *request_ring;
627
628 /* Valid only on recent ISPs. */
629 if (IS_QLA2100(ha) || IS_QLA2200(ha))
630 return;
631
632 /* Retrieve IOCB counts available to the firmware. */
633 rval = qla2x00_get_resource_cnts(ha, NULL, NULL, NULL, &fw_iocb_cnt);
634 if (rval)
635 return;
636 /* No point in continuing if current settings are sufficient. */
637 if (fw_iocb_cnt < 1024)
638 return;
639 if (ha->request_q_length >= request_q_length)
640 return;
641
642 /* Attempt to claim larger area for request queue. */
643 request_ring = dma_alloc_coherent(&ha->pdev->dev,
644 (request_q_length + 1) * sizeof(request_t), &request_dma,
645 GFP_KERNEL);
646 if (request_ring == NULL)
647 return;
648
649 /* Resize successful, report extensions. */
650 qla_printk(KERN_INFO, ha, "Extended memory detected (%d KB)...\n",
651 (ha->fw_memory_size + 1) / 1024);
652 qla_printk(KERN_INFO, ha, "Resizing request queue depth "
653 "(%d -> %d)...\n", ha->request_q_length, request_q_length);
654
655 /* Clear old allocations. */
656 dma_free_coherent(&ha->pdev->dev,
657 (ha->request_q_length + 1) * sizeof(request_t), ha->request_ring,
658 ha->request_dma);
659
660 /* Begin using larger queue. */
661 ha->request_q_length = request_q_length;
662 ha->request_ring = request_ring;
663 ha->request_dma = request_dma;
664}
665
666/**
667 * qla2x00_setup_chip() - Load and start RISC firmware.
668 * @ha: HA context
669 *
670 * Returns 0 on success.
671 */
672static int
673qla2x00_setup_chip(scsi_qla_host_t *ha)
674{
675 int rval;
676 uint16_t cnt;
677 uint16_t *risc_code;
678 unsigned long risc_address;
679 unsigned long risc_code_size;
680 int num;
681 int i;
682 uint16_t *req_ring;
683 struct qla_fw_info *fw_iter;
684
685 rval = QLA_SUCCESS;
686
687 /* Load firmware sequences */
688 fw_iter = ha->brd_info->fw_info;
689 while (fw_iter->addressing != FW_INFO_ADDR_NOMORE) {
690 risc_code = fw_iter->fwcode;
691 risc_code_size = *fw_iter->fwlen;
692
693 if (fw_iter->addressing == FW_INFO_ADDR_NORMAL) {
694 risc_address = *fw_iter->fwstart;
695 } else {
696 /* Extended address */
697 risc_address = *fw_iter->lfwstart;
698 }
699
700 num = 0;
701 rval = 0;
702 while (risc_code_size > 0 && !rval) {
703 cnt = (uint16_t)(ha->fw_transfer_size >> 1);
704 if (cnt > risc_code_size)
705 cnt = risc_code_size;
706
707 DEBUG7(printk("scsi(%ld): Loading risc segment@ "
708 "addr %p, number of bytes 0x%x, offset 0x%lx.\n",
709 ha->host_no, risc_code, cnt, risc_address));
710
711 req_ring = (uint16_t *)ha->request_ring;
712 for (i = 0; i < cnt; i++)
713 req_ring[i] = cpu_to_le16(risc_code[i]);
714
715 if (fw_iter->addressing == FW_INFO_ADDR_NORMAL) {
716 rval = qla2x00_load_ram(ha,
717 ha->request_dma, risc_address, cnt);
718 } else {
719 rval = qla2x00_load_ram_ext(ha,
720 ha->request_dma, risc_address, cnt);
721 }
722 if (rval) {
723 DEBUG(printk("scsi(%ld): [ERROR] Failed to "
724 "load segment %d of firmware\n",
725 ha->host_no, num));
726 qla_printk(KERN_WARNING, ha,
727 "[ERROR] Failed to load "
728 "segment %d of firmware\n", num);
729
730 qla2x00_dump_regs(ha);
731 break;
732 }
733
734 risc_code += cnt;
735 risc_address += cnt;
736 risc_code_size -= cnt;
737 num++;
738 }
739
740 /* Next firmware sequence */
741 fw_iter++;
742 }
743
744 /* Verify checksum of loaded RISC code. */
745 if (!rval) {
746 DEBUG(printk("scsi(%ld): Verifying Checksum of loaded RISC "
747 "code.\n", ha->host_no));
748
749 rval = qla2x00_verify_checksum(ha);
750 if (rval == QLA_SUCCESS) {
751 /* Start firmware execution. */
752 DEBUG(printk("scsi(%ld): Checksum OK, start "
753 "firmware.\n", ha->host_no));
754
755 rval = qla2x00_execute_fw(ha);
756 /* Retrieve firmware information. */
757 if (rval == QLA_SUCCESS && ha->fw_major_version == 0) {
758 qla2x00_get_fw_version(ha,
759 &ha->fw_major_version,
760 &ha->fw_minor_version,
761 &ha->fw_subminor_version,
762 &ha->fw_attributes, &ha->fw_memory_size);
763 qla2x00_resize_request_q(ha);
764 }
765 } else {
766 DEBUG2(printk(KERN_INFO
767 "scsi(%ld): ISP Firmware failed checksum.\n",
768 ha->host_no));
769 }
770 }
771
772 if (rval) {
773 DEBUG2_3(printk("scsi(%ld): Setup chip **** FAILED ****.\n",
774 ha->host_no));
775 }
776
777 return (rval);
778}
779
780/**
781 * qla2x00_init_response_q_entries() - Initializes response queue entries.
782 * @ha: HA context
783 *
784 * Beginning of request ring has initialization control block already built
785 * by nvram config routine.
786 *
787 * Returns 0 on success.
788 */
789static void
790qla2x00_init_response_q_entries(scsi_qla_host_t *ha)
791{
792 uint16_t cnt;
793 response_t *pkt;
794
795 pkt = ha->response_ring_ptr;
796 for (cnt = 0; cnt < ha->response_q_length; cnt++) {
797 pkt->signature = RESPONSE_PROCESSED;
798 pkt++;
799 }
800
801}
802
803/**
804 * qla2x00_update_fw_options() - Read and process firmware options.
805 * @ha: HA context
806 *
807 * Returns 0 on success.
808 */
809static void
810qla2x00_update_fw_options(scsi_qla_host_t *ha)
811{
812 uint16_t swing, emphasis, tx_sens, rx_sens;
813
814 memset(ha->fw_options, 0, sizeof(ha->fw_options));
815 qla2x00_get_fw_options(ha, ha->fw_options);
816
817 if (IS_QLA2100(ha) || IS_QLA2200(ha))
818 return;
819
820 /* Serial Link options. */
821 DEBUG3(printk("scsi(%ld): Serial link options:\n",
822 ha->host_no));
823 DEBUG3(qla2x00_dump_buffer((uint8_t *)&ha->fw_seriallink_options,
824 sizeof(ha->fw_seriallink_options)));
825
826 ha->fw_options[1] &= ~FO1_SET_EMPHASIS_SWING;
827 if (ha->fw_seriallink_options[3] & BIT_2) {
828 ha->fw_options[1] |= FO1_SET_EMPHASIS_SWING;
829
830 /* 1G settings */
831 swing = ha->fw_seriallink_options[2] & (BIT_2 | BIT_1 | BIT_0);
832 emphasis = (ha->fw_seriallink_options[2] &
833 (BIT_4 | BIT_3)) >> 3;
834 tx_sens = ha->fw_seriallink_options[0] &
835 (BIT_3 | BIT_2 | BIT_1 | BIT_0);
836 rx_sens = (ha->fw_seriallink_options[0] &
837 (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
838 ha->fw_options[10] = (emphasis << 14) | (swing << 8);
839 if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
840 if (rx_sens == 0x0)
841 rx_sens = 0x3;
842 ha->fw_options[10] |= (tx_sens << 4) | rx_sens;
843 } else if (IS_QLA2322(ha) || IS_QLA6322(ha))
844 ha->fw_options[10] |= BIT_5 |
845 ((rx_sens & (BIT_1 | BIT_0)) << 2) |
846 (tx_sens & (BIT_1 | BIT_0));
847
848 /* 2G settings */
849 swing = (ha->fw_seriallink_options[2] &
850 (BIT_7 | BIT_6 | BIT_5)) >> 5;
851 emphasis = ha->fw_seriallink_options[3] & (BIT_1 | BIT_0);
852 tx_sens = ha->fw_seriallink_options[1] &
853 (BIT_3 | BIT_2 | BIT_1 | BIT_0);
854 rx_sens = (ha->fw_seriallink_options[1] &
855 (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
856 ha->fw_options[11] = (emphasis << 14) | (swing << 8);
857 if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
858 if (rx_sens == 0x0)
859 rx_sens = 0x3;
860 ha->fw_options[11] |= (tx_sens << 4) | rx_sens;
861 } else if (IS_QLA2322(ha) || IS_QLA6322(ha))
862 ha->fw_options[11] |= BIT_5 |
863 ((rx_sens & (BIT_1 | BIT_0)) << 2) |
864 (tx_sens & (BIT_1 | BIT_0));
865 }
866
867 /* FCP2 options. */
868 /* Return command IOCBs without waiting for an ABTS to complete. */
869 ha->fw_options[3] |= BIT_13;
870
871 /* LED scheme. */
872 if (ha->flags.enable_led_scheme)
873 ha->fw_options[2] |= BIT_12;
874
875 /* Update firmware options. */
876 qla2x00_set_fw_options(ha, ha->fw_options);
877}
878
879/**
880 * qla2x00_init_rings() - Initializes firmware.
881 * @ha: HA context
882 *
883 * Beginning of request ring has initialization control block already built
884 * by nvram config routine.
885 *
886 * Returns 0 on success.
887 */
888static int
889qla2x00_init_rings(scsi_qla_host_t *ha)
890{
891 int rval;
892 unsigned long flags = 0;
893 int cnt;
894 device_reg_t __iomem *reg = ha->iobase;
895
896 spin_lock_irqsave(&ha->hardware_lock, flags);
897
898 /* Clear outstanding commands array. */
899 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++)
900 ha->outstanding_cmds[cnt] = NULL;
901
902 ha->current_outstanding_cmd = 0;
903
904 /* Clear RSCN queue. */
905 ha->rscn_in_ptr = 0;
906 ha->rscn_out_ptr = 0;
907
908 /* Initialize firmware. */
909 ha->request_ring_ptr = ha->request_ring;
910 ha->req_ring_index = 0;
911 ha->req_q_cnt = ha->request_q_length;
912 ha->response_ring_ptr = ha->response_ring;
913 ha->rsp_ring_index = 0;
914
915 /* Setup ring parameters in initialization control block. */
916 ha->init_cb->request_q_outpointer = __constant_cpu_to_le16(0);
917 ha->init_cb->response_q_inpointer = __constant_cpu_to_le16(0);
918 ha->init_cb->request_q_length = cpu_to_le16(ha->request_q_length);
919 ha->init_cb->response_q_length = cpu_to_le16(ha->response_q_length);
920 ha->init_cb->request_q_address[0] = cpu_to_le32(LSD(ha->request_dma));
921 ha->init_cb->request_q_address[1] = cpu_to_le32(MSD(ha->request_dma));
922 ha->init_cb->response_q_address[0] = cpu_to_le32(LSD(ha->response_dma));
923 ha->init_cb->response_q_address[1] = cpu_to_le32(MSD(ha->response_dma));
924
925 /* Initialize response queue entries */
926 qla2x00_init_response_q_entries(ha);
927
928 WRT_REG_WORD(ISP_REQ_Q_IN(ha, reg), 0);
929 WRT_REG_WORD(ISP_REQ_Q_OUT(ha, reg), 0);
930 WRT_REG_WORD(ISP_RSP_Q_IN(ha, reg), 0);
931 WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), 0);
932 RD_REG_WORD(ISP_RSP_Q_OUT(ha, reg)); /* PCI Posting. */
933
934 spin_unlock_irqrestore(&ha->hardware_lock, flags);
935
936 /* Update any ISP specific firmware options before initialization. */
937 qla2x00_update_fw_options(ha);
938
939 DEBUG(printk("scsi(%ld): Issue init firmware.\n", ha->host_no));
940 rval = qla2x00_init_firmware(ha, sizeof(init_cb_t));
941 if (rval) {
942 DEBUG2_3(printk("scsi(%ld): Init firmware **** FAILED ****.\n",
943 ha->host_no));
944 } else {
945 DEBUG3(printk("scsi(%ld): Init firmware -- success.\n",
946 ha->host_no));
947 }
948
949 return (rval);
950}
951
952/**
953 * qla2x00_fw_ready() - Waits for firmware ready.
954 * @ha: HA context
955 *
956 * Returns 0 on success.
957 */
958static int
959qla2x00_fw_ready(scsi_qla_host_t *ha)
960{
961 int rval;
962 unsigned long wtime, mtime;
963 uint16_t min_wait; /* Minimum wait time if loop is down */
964 uint16_t wait_time; /* Wait time if loop is coming ready */
965 uint16_t fw_state;
966
967 rval = QLA_SUCCESS;
968
969 /* 20 seconds for loop down. */
970 min_wait = 20;
971
972 /*
973 * Firmware should take at most one RATOV to login, plus 5 seconds for
974 * our own processing.
975 */
976 if ((wait_time = (ha->retry_count*ha->login_timeout) + 5) < min_wait) {
977 wait_time = min_wait;
978 }
979
980 /* Min wait time if loop down */
981 mtime = jiffies + (min_wait * HZ);
982
983 /* wait time before firmware ready */
984 wtime = jiffies + (wait_time * HZ);
985
986 /* Wait for ISP to finish LIP */
987 if (!ha->flags.init_done)
988 qla_printk(KERN_INFO, ha, "Waiting for LIP to complete...\n");
989
990 DEBUG3(printk("scsi(%ld): Waiting for LIP to complete...\n",
991 ha->host_no));
992
993 do {
994 rval = qla2x00_get_firmware_state(ha, &fw_state);
995 if (rval == QLA_SUCCESS) {
996 if (fw_state < FSTATE_LOSS_OF_SYNC) {
997 ha->device_flags &= ~DFLG_NO_CABLE;
998 }
999 if (fw_state == FSTATE_READY) {
1000 DEBUG(printk("scsi(%ld): F/W Ready - OK \n",
1001 ha->host_no));
1002
1003 qla2x00_get_retry_cnt(ha, &ha->retry_count,
1004 &ha->login_timeout, &ha->r_a_tov);
1005
1006 rval = QLA_SUCCESS;
1007 break;
1008 }
1009
1010 rval = QLA_FUNCTION_FAILED;
1011
1012 if (atomic_read(&ha->loop_down_timer) &&
1013 (fw_state >= FSTATE_LOSS_OF_SYNC ||
1014 fw_state == FSTATE_WAIT_AL_PA)) {
1015 /* Loop down. Timeout on min_wait for states
1016 * other than Wait for Login.
1017 */
1018 if (time_after_eq(jiffies, mtime)) {
1019 qla_printk(KERN_INFO, ha,
1020 "Cable is unplugged...\n");
1021
1022 ha->device_flags |= DFLG_NO_CABLE;
1023 break;
1024 }
1025 }
1026 } else {
1027 /* Mailbox cmd failed. Timeout on min_wait. */
1028 if (time_after_eq(jiffies, mtime))
1029 break;
1030 }
1031
1032 if (time_after_eq(jiffies, wtime))
1033 break;
1034
1035 /* Delay for a while */
1036 msleep(500);
1037
1038 DEBUG3(printk("scsi(%ld): fw_state=%x curr time=%lx.\n",
1039 ha->host_no, fw_state, jiffies));
1040 } while (1);
1041
1042 DEBUG(printk("scsi(%ld): fw_state=%x curr time=%lx.\n",
1043 ha->host_no, fw_state, jiffies));
1044
1045 if (rval) {
1046 DEBUG2_3(printk("scsi(%ld): Firmware ready **** FAILED ****.\n",
1047 ha->host_no));
1048 }
1049
1050 return (rval);
1051}
1052
1053/*
1054* qla2x00_configure_hba
1055* Setup adapter context.
1056*
1057* Input:
1058* ha = adapter state pointer.
1059*
1060* Returns:
1061* 0 = success
1062*
1063* Context:
1064* Kernel context.
1065*/
1066static int
1067qla2x00_configure_hba(scsi_qla_host_t *ha)
1068{
1069 int rval;
1070 uint16_t loop_id;
1071 uint16_t topo;
1072 uint8_t al_pa;
1073 uint8_t area;
1074 uint8_t domain;
1075 char connect_type[22];
1076
1077 /* Get host addresses. */
1078 rval = qla2x00_get_adapter_id(ha,
1079 &loop_id, &al_pa, &area, &domain, &topo);
1080 if (rval != QLA_SUCCESS) {
1081 qla_printk(KERN_WARNING, ha,
1082 "ERROR -- Unable to get host loop ID.\n");
1083 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
1084 return (rval);
1085 }
1086
1087 if (topo == 4) {
1088 qla_printk(KERN_INFO, ha,
1089 "Cannot get topology - retrying.\n");
1090 return (QLA_FUNCTION_FAILED);
1091 }
1092
1093 ha->loop_id = loop_id;
1094
1095 /* initialize */
1096 ha->min_external_loopid = SNS_FIRST_LOOP_ID;
1097 ha->operating_mode = LOOP;
1098
1099 switch (topo) {
1100 case 0:
1101 DEBUG3(printk("scsi(%ld): HBA in NL topology.\n",
1102 ha->host_no));
1103 ha->current_topology = ISP_CFG_NL;
1104 strcpy(connect_type, "(Loop)");
1105 break;
1106
1107 case 1:
1108 DEBUG3(printk("scsi(%ld): HBA in FL topology.\n",
1109 ha->host_no));
1110 ha->current_topology = ISP_CFG_FL;
1111 strcpy(connect_type, "(FL_Port)");
1112 break;
1113
1114 case 2:
1115 DEBUG3(printk("scsi(%ld): HBA in N P2P topology.\n",
1116 ha->host_no));
1117 ha->operating_mode = P2P;
1118 ha->current_topology = ISP_CFG_N;
1119 strcpy(connect_type, "(N_Port-to-N_Port)");
1120 break;
1121
1122 case 3:
1123 DEBUG3(printk("scsi(%ld): HBA in F P2P topology.\n",
1124 ha->host_no));
1125 ha->operating_mode = P2P;
1126 ha->current_topology = ISP_CFG_F;
1127 strcpy(connect_type, "(F_Port)");
1128 break;
1129
1130 default:
1131 DEBUG3(printk("scsi(%ld): HBA in unknown topology %x. "
1132 "Using NL.\n",
1133 ha->host_no, topo));
1134 ha->current_topology = ISP_CFG_NL;
1135 strcpy(connect_type, "(Loop)");
1136 break;
1137 }
1138
1139 /* Save Host port and loop ID. */
1140 /* byte order - Big Endian */
1141 ha->d_id.b.domain = domain;
1142 ha->d_id.b.area = area;
1143 ha->d_id.b.al_pa = al_pa;
1144
1145 if (!ha->flags.init_done)
1146 qla_printk(KERN_INFO, ha,
1147 "Topology - %s, Host Loop address 0x%x\n",
1148 connect_type, ha->loop_id);
1149
1150 if (rval) {
1151 DEBUG2_3(printk("scsi(%ld): FAILED.\n", ha->host_no));
1152 } else {
1153 DEBUG3(printk("scsi(%ld): exiting normally.\n", ha->host_no));
1154 }
1155
1156 return(rval);
1157}
1158
1159/*
1160* NVRAM configuration for ISP 2xxx
1161*
1162* Input:
1163* ha = adapter block pointer.
1164*
1165* Output:
1166* initialization control block in response_ring
1167* host adapters parameters in host adapter block
1168*
1169* Returns:
1170* 0 = success.
1171*/
1172static int
1173qla2x00_nvram_config(scsi_qla_host_t *ha)
1174{
1175 int rval;
1176 uint8_t chksum = 0;
1177 uint16_t cnt;
1178 uint8_t *dptr1, *dptr2;
1179 init_cb_t *icb = ha->init_cb;
1180 nvram_t *nv = (nvram_t *)ha->request_ring;
1181 uint16_t *wptr = (uint16_t *)ha->request_ring;
1182 device_reg_t __iomem *reg = ha->iobase;
1183 uint8_t timer_mode;
1184
1185 rval = QLA_SUCCESS;
1186
1187 /* Determine NVRAM starting address. */
1188 ha->nvram_base = 0;
1189 if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA2300(ha))
1190 if ((RD_REG_WORD(&reg->ctrl_status) >> 14) == 1)
1191 ha->nvram_base = 0x80;
1192
1193 /* Get NVRAM data and calculate checksum. */
1194 qla2x00_lock_nvram_access(ha);
1195 for (cnt = 0; cnt < sizeof(nvram_t)/2; cnt++) {
1196 *wptr = cpu_to_le16(qla2x00_get_nvram_word(ha,
1197 (cnt+ha->nvram_base)));
1198 chksum += (uint8_t)*wptr;
1199 chksum += (uint8_t)(*wptr >> 8);
1200 wptr++;
1201 }
1202 qla2x00_unlock_nvram_access(ha);
1203
1204 DEBUG5(printk("scsi(%ld): Contents of NVRAM\n", ha->host_no));
1205 DEBUG5(qla2x00_dump_buffer((uint8_t *)ha->request_ring,
1206 sizeof(nvram_t)));
1207
1208 /* Bad NVRAM data, set defaults parameters. */
1209 if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' ||
1210 nv->id[2] != 'P' || nv->id[3] != ' ' || nv->nvram_version < 1) {
1211 /* Reset NVRAM data. */
1212 qla_printk(KERN_WARNING, ha, "Inconsistent NVRAM detected: "
1213 "checksum=0x%x id=%c version=0x%x.\n", chksum, nv->id[0],
1214 nv->nvram_version);
1215 qla_printk(KERN_WARNING, ha, "Falling back to functioning (yet "
1216 "invalid -- WWPN) defaults.\n");
1217
1218 /*
1219 * Set default initialization control block.
1220 */
1221 memset(nv, 0, sizeof(nvram_t));
1222 nv->parameter_block_version = ICB_VERSION;
1223
1224 if (IS_QLA23XX(ha)) {
1225 nv->firmware_options[0] = BIT_2 | BIT_1;
1226 nv->firmware_options[1] = BIT_7 | BIT_5;
1227 nv->add_firmware_options[0] = BIT_5;
1228 nv->add_firmware_options[1] = BIT_5 | BIT_4;
1229 nv->frame_payload_size = __constant_cpu_to_le16(2048);
1230 nv->special_options[1] = BIT_7;
1231 } else if (IS_QLA2200(ha)) {
1232 nv->firmware_options[0] = BIT_2 | BIT_1;
1233 nv->firmware_options[1] = BIT_7 | BIT_5;
1234 nv->add_firmware_options[0] = BIT_5;
1235 nv->add_firmware_options[1] = BIT_5 | BIT_4;
1236 nv->frame_payload_size = __constant_cpu_to_le16(1024);
1237 } else if (IS_QLA2100(ha)) {
1238 nv->firmware_options[0] = BIT_3 | BIT_1;
1239 nv->firmware_options[1] = BIT_5;
1240 nv->frame_payload_size = __constant_cpu_to_le16(1024);
1241 }
1242
1243 nv->max_iocb_allocation = __constant_cpu_to_le16(256);
1244 nv->execution_throttle = __constant_cpu_to_le16(16);
1245 nv->retry_count = 8;
1246 nv->retry_delay = 1;
1247
1248 nv->port_name[0] = 33;
1249 nv->port_name[3] = 224;
1250 nv->port_name[4] = 139;
1251
1252 nv->login_timeout = 4;
1253
1254 /*
1255 * Set default host adapter parameters
1256 */
1257 nv->host_p[1] = BIT_2;
1258 nv->reset_delay = 5;
1259 nv->port_down_retry_count = 8;
1260 nv->max_luns_per_target = __constant_cpu_to_le16(8);
1261 nv->link_down_timeout = 60;
1262
1263 rval = 1;
1264 }
1265
1266#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
1267 /*
1268 * The SN2 does not provide BIOS emulation which means you can't change
1269 * potentially bogus BIOS settings. Force the use of default settings
1270 * for link rate and frame size. Hope that the rest of the settings
1271 * are valid.
1272 */
1273 if (ia64_platform_is("sn2")) {
1274 nv->frame_payload_size = __constant_cpu_to_le16(2048);
1275 if (IS_QLA23XX(ha))
1276 nv->special_options[1] = BIT_7;
1277 }
1278#endif
1279
1280 /* Reset Initialization control block */
1281 memset(icb, 0, sizeof(init_cb_t));
1282
1283 /*
1284 * Setup driver NVRAM options.
1285 */
1286 nv->firmware_options[0] |= (BIT_6 | BIT_1);
1287 nv->firmware_options[0] &= ~(BIT_5 | BIT_4);
1288 nv->firmware_options[1] |= (BIT_5 | BIT_0);
1289 nv->firmware_options[1] &= ~BIT_4;
1290
1291 if (IS_QLA23XX(ha)) {
1292 nv->firmware_options[0] |= BIT_2;
1293 nv->firmware_options[0] &= ~BIT_3;
1294
1295 if (IS_QLA2300(ha)) {
1296 if (ha->fb_rev == FPM_2310) {
1297 strcpy(ha->model_number, "QLA2310");
1298 } else {
1299 strcpy(ha->model_number, "QLA2300");
1300 }
1301 } else {
1302 if (rval == 0 &&
1303 memcmp(nv->model_number, BINZERO,
1304 sizeof(nv->model_number)) != 0) {
1305 char *st, *en;
1306
1307 strncpy(ha->model_number, nv->model_number,
1308 sizeof(nv->model_number));
1309 st = en = ha->model_number;
1310 en += sizeof(nv->model_number) - 1;
1311 while (en > st) {
1312 if (*en != 0x20 && *en != 0x00)
1313 break;
1314 *en-- = '\0';
1315 }
1316 } else {
1317 uint16_t index;
1318
1319 index = (ha->pdev->subsystem_device & 0xff);
1320 if (index < QLA_MODEL_NAMES) {
1321 strcpy(ha->model_number,
1322 qla2x00_model_name[index]);
1323 ha->model_desc =
1324 qla2x00_model_desc[index];
1325 } else {
1326 strcpy(ha->model_number, "QLA23xx");
1327 }
1328 }
1329 }
1330 } else if (IS_QLA2200(ha)) {
1331 nv->firmware_options[0] |= BIT_2;
1332 /*
1333 * 'Point-to-point preferred, else loop' is not a safe
1334 * connection mode setting.
1335 */
1336 if ((nv->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) ==
1337 (BIT_5 | BIT_4)) {
1338 /* Force 'loop preferred, else point-to-point'. */
1339 nv->add_firmware_options[0] &= ~(BIT_6 | BIT_5 | BIT_4);
1340 nv->add_firmware_options[0] |= BIT_5;
1341 }
1342 strcpy(ha->model_number, "QLA22xx");
1343 } else /*if (IS_QLA2100(ha))*/ {
1344 strcpy(ha->model_number, "QLA2100");
1345 }
1346
1347 /*
1348 * Copy over NVRAM RISC parameter block to initialization control block.
1349 */
1350 dptr1 = (uint8_t *)icb;
1351 dptr2 = (uint8_t *)&nv->parameter_block_version;
1352 cnt = (uint8_t *)&icb->request_q_outpointer - (uint8_t *)&icb->version;
1353 while (cnt--)
1354 *dptr1++ = *dptr2++;
1355
1356 /* Copy 2nd half. */
1357 dptr1 = (uint8_t *)icb->add_firmware_options;
1358 cnt = (uint8_t *)icb->reserved_3 - (uint8_t *)icb->add_firmware_options;
1359 while (cnt--)
1360 *dptr1++ = *dptr2++;
1361
1362 /* Prepare nodename */
1363 if ((icb->firmware_options[1] & BIT_6) == 0) {
1364 /*
1365 * Firmware will apply the following mask if the nodename was
1366 * not provided.
1367 */
1368 memcpy(icb->node_name, icb->port_name, WWN_SIZE);
1369 icb->node_name[0] &= 0xF0;
1370 }
1371
1372 /*
1373 * Set host adapter parameters.
1374 */
1375 ha->nvram_version = nv->nvram_version;
1376
1377 ha->flags.disable_risc_code_load = ((nv->host_p[0] & BIT_4) ? 1 : 0);
1378 /* Always load RISC code on non ISP2[12]00 chips. */
1379 if (!IS_QLA2100(ha) && !IS_QLA2200(ha))
1380 ha->flags.disable_risc_code_load = 0;
1381 ha->flags.enable_lip_reset = ((nv->host_p[1] & BIT_1) ? 1 : 0);
1382 ha->flags.enable_lip_full_login = ((nv->host_p[1] & BIT_2) ? 1 : 0);
1383 ha->flags.enable_target_reset = ((nv->host_p[1] & BIT_3) ? 1 : 0);
1384 ha->flags.enable_led_scheme = ((nv->efi_parameters & BIT_3) ? 1 : 0);
1385
1386 ha->operating_mode =
1387 (icb->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) >> 4;
1388
1389 memcpy(ha->fw_seriallink_options, nv->seriallink_options,
1390 sizeof(ha->fw_seriallink_options));
1391
1392 /* save HBA serial number */
1393 ha->serial0 = icb->port_name[5];
1394 ha->serial1 = icb->port_name[6];
1395 ha->serial2 = icb->port_name[7];
1396 memcpy(ha->node_name, icb->node_name, WWN_SIZE);
1397
1398 icb->execution_throttle = __constant_cpu_to_le16(0xFFFF);
1399
1400 ha->retry_count = nv->retry_count;
1401
1402 /* Set minimum login_timeout to 4 seconds. */
1403 if (nv->login_timeout < ql2xlogintimeout)
1404 nv->login_timeout = ql2xlogintimeout;
1405 if (nv->login_timeout < 4)
1406 nv->login_timeout = 4;
1407 ha->login_timeout = nv->login_timeout;
1408 icb->login_timeout = nv->login_timeout;
1409
1410 /* Set minimum RATOV to 200 tenths of a second. */
1411 ha->r_a_tov = 200;
1412
1413 ha->minimum_timeout =
1414 (ha->login_timeout * ha->retry_count) + nv->port_down_retry_count;
1415 ha->loop_reset_delay = nv->reset_delay;
1416
1417 /* Will get the value from NVRAM. */
1418 ha->loop_down_timeout = LOOP_DOWN_TIMEOUT;
1419
1420 /* Link Down Timeout = 0:
1421 *
1422 * When Port Down timer expires we will start returning
1423 * I/O's to OS with "DID_NO_CONNECT".
1424 *
1425 * Link Down Timeout != 0:
1426 *
1427 * The driver waits for the link to come up after link down
1428 * before returning I/Os to OS with "DID_NO_CONNECT".
1429 */
1430 if (nv->link_down_timeout == 0) {
1431 ha->loop_down_abort_time =
1432 (LOOP_DOWN_TIME - ha->loop_down_timeout);
1433 } else {
1434 ha->link_down_timeout = nv->link_down_timeout;
1435 ha->loop_down_abort_time =
1436 (LOOP_DOWN_TIME - ha->link_down_timeout);
1437 }
1438
1439 ha->max_luns = MAX_LUNS;
1440 ha->max_probe_luns = le16_to_cpu(nv->max_luns_per_target);
1441 if (ha->max_probe_luns == 0)
1442 ha->max_probe_luns = MIN_LUNS;
1443
1444 /*
1445 * Need enough time to try and get the port back.
1446 */
1447 ha->port_down_retry_count = nv->port_down_retry_count;
1448 if (qlport_down_retry)
1449 ha->port_down_retry_count = qlport_down_retry;
1450 /* Set login_retry_count */
1451 ha->login_retry_count = nv->retry_count;
1452 if (ha->port_down_retry_count == nv->port_down_retry_count &&
1453 ha->port_down_retry_count > 3)
1454 ha->login_retry_count = ha->port_down_retry_count;
1455 else if (ha->port_down_retry_count > (int)ha->login_retry_count)
1456 ha->login_retry_count = ha->port_down_retry_count;
1457 if (ql2xloginretrycount)
1458 ha->login_retry_count = ql2xloginretrycount;
1459
1460 ha->binding_type = Bind;
1461 if (ha->binding_type != BIND_BY_PORT_NAME &&
1462 ha->binding_type != BIND_BY_PORT_ID) {
1463 qla_printk(KERN_WARNING, ha,
1464 "Invalid binding type specified (%d), "
1465 "defaulting to BIND_BY_PORT_NAME!!!\n", ha->binding_type);
1466
1467 ha->binding_type = BIND_BY_PORT_NAME;
1468 }
1469
1470 icb->lun_enables = __constant_cpu_to_le16(0);
1471 icb->command_resource_count = 0;
1472 icb->immediate_notify_resource_count = 0;
1473 icb->timeout = __constant_cpu_to_le16(0);
1474
1475 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
1476 /* Enable RIO */
1477 icb->firmware_options[0] &= ~BIT_3;
1478 icb->add_firmware_options[0] &=
1479 ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
1480 icb->add_firmware_options[0] |= BIT_2;
1481 icb->response_accumulation_timer = 3;
1482 icb->interrupt_delay_timer = 5;
1483
1484 ha->flags.process_response_queue = 1;
1485 } else {
1486 /* Enable ZIO -- Support mode 5 only. */
1487 timer_mode = icb->add_firmware_options[0] &
1488 (BIT_3 | BIT_2 | BIT_1 | BIT_0);
1489 icb->add_firmware_options[0] &=
1490 ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
1491 if (ql2xenablezio)
1492 timer_mode = BIT_2 | BIT_0;
1493 if (timer_mode == (BIT_2 | BIT_0)) {
1494 DEBUG2(printk("scsi(%ld): ZIO enabled; timer delay "
1495 "(%d).\n", ha->host_no, ql2xintrdelaytimer));
1496 qla_printk(KERN_INFO, ha,
1497 "ZIO enabled; timer delay (%d).\n",
1498 ql2xintrdelaytimer);
1499
1500 icb->add_firmware_options[0] |= timer_mode;
1501 icb->interrupt_delay_timer = ql2xintrdelaytimer;
1502 ha->flags.process_response_queue = 1;
1503 }
1504 }
1505
1506 if (rval) {
1507 DEBUG2_3(printk(KERN_WARNING
1508 "scsi(%ld): NVRAM configuration failed!\n", ha->host_no));
1509 }
1510 return (rval);
1511}
1512
1da177e4
LT		 1513/**
1514 * qla2x00_alloc_fcport() - Allocate a generic fcport.
1515 * @ha: HA context
1516 * @flags: allocation flags
1517 *
1518 * Returns a pointer to the allocated fcport, or NULL, if none available.
1519 */
1520fc_port_t *
1521qla2x00_alloc_fcport(scsi_qla_host_t *ha, int flags)
1522{
1523 fc_port_t *fcport;
1524
1525 fcport = kmalloc(sizeof(fc_port_t), flags);
1526 if (fcport == NULL)
1527 return (fcport);
1528
1529 /* Setup fcport template structure. */
1530 memset(fcport, 0, sizeof (fc_port_t));
1531 fcport->ha = ha;
1532 fcport->port_type = FCT_UNKNOWN;
1533 fcport->loop_id = FC_NO_LOOP_ID;
1534 fcport->iodesc_idx_sent = IODESC_INVALID_INDEX;
1535 atomic_set(&fcport->state, FCS_UNCONFIGURED);
1536 fcport->flags = FCF_RLC_SUPPORT;
1da177e4
LT		 1537
1538 return (fcport);
1539}
1540
1541/*
1542 * qla2x00_configure_loop
1543 * Updates Fibre Channel Device Database with what is actually on loop.
1544 *
1545 * Input:
1546 * ha = adapter block pointer.
1547 *
1548 * Returns:
1549 * 0 = success.
1550 * 1 = error.
1551 * 2 = database was full and device was not configured.
1552 */
1553static int
1554qla2x00_configure_loop(scsi_qla_host_t *ha)
1555{
1556 int rval;
1557 unsigned long flags, save_flags;
1558
1559 rval = QLA_SUCCESS;
1560
1561 /* Get Initiator ID */
1562 if (test_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags)) {
1563 rval = qla2x00_configure_hba(ha);
1564 if (rval != QLA_SUCCESS) {
1565 DEBUG(printk("scsi(%ld): Unable to configure HBA.\n",
1566 ha->host_no));
1567 return (rval);
1568 }
1569 }
1570
1571 save_flags = flags = ha->dpc_flags;
1572 DEBUG(printk("scsi(%ld): Configure loop -- dpc flags =0x%lx\n",
1573 ha->host_no, flags));
1574
1575 /*
1576 * If we have both an RSCN and PORT UPDATE pending then handle them
1577 * both at the same time.
1578 */
1579 clear_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
1580 clear_bit(RSCN_UPDATE, &ha->dpc_flags);
1581 ha->mem_err = 0 ;
1582
1583 /* Determine what we need to do */
1584 if (ha->current_topology == ISP_CFG_FL &&
1585 (test_bit(LOCAL_LOOP_UPDATE, &flags))) {
1586
1587 ha->flags.rscn_queue_overflow = 1;
1588 set_bit(RSCN_UPDATE, &flags);
1589
1590 } else if (ha->current_topology == ISP_CFG_F &&
1591 (test_bit(LOCAL_LOOP_UPDATE, &flags))) {
1592
1593 ha->flags.rscn_queue_overflow = 1;
1594 set_bit(RSCN_UPDATE, &flags);
1595 clear_bit(LOCAL_LOOP_UPDATE, &flags);
1596
1597 } else if (!ha->flags.online ||
1598 (test_bit(ABORT_ISP_ACTIVE, &flags))) {
1599
1600 ha->flags.rscn_queue_overflow = 1;
1601 set_bit(RSCN_UPDATE, &flags);
1602 set_bit(LOCAL_LOOP_UPDATE, &flags);
1603 }
1604
1605 if (test_bit(LOCAL_LOOP_UPDATE, &flags)) {
1606 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
1607 rval = QLA_FUNCTION_FAILED;
1608 } else {
1609 rval = qla2x00_configure_local_loop(ha);
1610 }
1611 }
1612
1613 if (rval == QLA_SUCCESS && test_bit(RSCN_UPDATE, &flags)) {
1614 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
1615 rval = QLA_FUNCTION_FAILED;
1616 } else {
1617 rval = qla2x00_configure_fabric(ha);
1618 }
1619 }
1620
1621 if (rval == QLA_SUCCESS) {
1622 if (atomic_read(&ha->loop_down_timer) ||
1623 test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
1624 rval = QLA_FUNCTION_FAILED;
1625 } else {
1da177e4
LT		 1626 atomic_set(&ha->loop_state, LOOP_READY);
1627
1628 DEBUG(printk("scsi(%ld): LOOP READY\n", ha->host_no));
1629 }
1630 }
1631
1632 if (rval) {
1633 DEBUG2_3(printk("%s(%ld): *** FAILED ***\n",
1634 __func__, ha->host_no));
1635 } else {
1636 DEBUG3(printk("%s: exiting normally\n", __func__));
1637 }
1638
1639 /* Restore state if a resync event occured during processing */
1640 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
1641 if (test_bit(LOCAL_LOOP_UPDATE, &save_flags))
1642 set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
1643 if (test_bit(RSCN_UPDATE, &save_flags))
1644 set_bit(RSCN_UPDATE, &ha->dpc_flags);
1645 }
1646
1647 return (rval);
1648}
1649
1650
1651
1652/*
1653 * qla2x00_configure_local_loop
1654 * Updates Fibre Channel Device Database with local loop devices.
1655 *
1656 * Input:
1657 * ha = adapter block pointer.
1658 *
1659 * Returns:
1660 * 0 = success.
1661 */
1662static int
1663qla2x00_configure_local_loop(scsi_qla_host_t *ha)
1664{
1665 int rval, rval2;
1666 int found_devs;
1667 int found;
1668 fc_port_t *fcport, *new_fcport;
1669
1670 uint16_t index;
1671 uint16_t entries;
1672 char *id_iter;
1673 uint16_t loop_id;
1674 uint8_t domain, area, al_pa;
1675
1676 found_devs = 0;
1677 new_fcport = NULL;
1678 entries = MAX_FIBRE_DEVICES;
1679
1680 DEBUG3(printk("scsi(%ld): Getting FCAL position map\n", ha->host_no));
1681 DEBUG3(qla2x00_get_fcal_position_map(ha, NULL));
1682
1683 /* Get list of logged in devices. */
1684 memset(ha->gid_list, 0, GID_LIST_SIZE);
1685 rval = qla2x00_get_id_list(ha, ha->gid_list, ha->gid_list_dma,
1686 &entries);
1687 if (rval != QLA_SUCCESS)
1688 goto cleanup_allocation;
1689
1690 DEBUG3(printk("scsi(%ld): Entries in ID list (%d)\n",
1691 ha->host_no, entries));
1692 DEBUG3(qla2x00_dump_buffer((uint8_t *)ha->gid_list,
1693 entries * sizeof(struct gid_list_info)));
1694
1695 /* Allocate temporary fcport for any new fcports discovered. */
1696 new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
1697 if (new_fcport == NULL) {
1698 rval = QLA_MEMORY_ALLOC_FAILED;
1699 goto cleanup_allocation;
1700 }
1701 new_fcport->flags &= ~FCF_FABRIC_DEVICE;
1702
1703 /*
1704 * Mark local devices that were present with FCF_DEVICE_LOST for now.
1705 */
1706 list_for_each_entry(fcport, &ha->fcports, list) {
1707 if (atomic_read(&fcport->state) == FCS_ONLINE &&
1708 fcport->port_type != FCT_BROADCAST &&
1709 (fcport->flags & FCF_FABRIC_DEVICE) == 0) {
1710
1711 DEBUG(printk("scsi(%ld): Marking port lost, "
1712 "loop_id=0x%04x\n",
1713 ha->host_no, fcport->loop_id));
1714
1715 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1716 fcport->flags &= ~FCF_FARP_DONE;
1717 }
1718 }
1719
1720 /* Add devices to port list. */
1721 id_iter = (char *)ha->gid_list;
1722 for (index = 0; index < entries; index++) {
1723 domain = ((struct gid_list_info *)id_iter)->domain;
1724 area = ((struct gid_list_info *)id_iter)->area;
1725 al_pa = ((struct gid_list_info *)id_iter)->al_pa;
1726 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
1727 loop_id = (uint16_t)
1728 ((struct gid_list_info *)id_iter)->loop_id_2100;
1729 id_iter += 4;
1730 } else {
1731 loop_id = le16_to_cpu(
1732 ((struct gid_list_info *)id_iter)->loop_id);
1733 id_iter += 6;
1734 }
1735
1736 /* Bypass reserved domain fields. */
1737 if ((domain & 0xf0) == 0xf0)
1738 continue;
1739
1740 /* Bypass if not same domain and area of adapter. */
1741 if (area != ha->d_id.b.area || domain != ha->d_id.b.domain)
1742 continue;
1743
1744 /* Bypass invalid local loop ID. */
1745 if (loop_id > LAST_LOCAL_LOOP_ID)
1746 continue;
1747
1748 /* Fill in member data. */
1749 new_fcport->d_id.b.domain = domain;
1750 new_fcport->d_id.b.area = area;
1751 new_fcport->d_id.b.al_pa = al_pa;
1752 new_fcport->loop_id = loop_id;
1753 rval2 = qla2x00_get_port_database(ha, new_fcport, 0);
1754 if (rval2 != QLA_SUCCESS) {
1755 DEBUG2(printk("scsi(%ld): Failed to retrieve fcport "
1756 "information -- get_port_database=%x, "
1757 "loop_id=0x%04x\n",
1758 ha->host_no, rval2, new_fcport->loop_id));
1759 continue;
1760 }
1761
1762 /* Check for matching device in port list. */
1763 found = 0;
1764 fcport = NULL;
1765 list_for_each_entry(fcport, &ha->fcports, list) {
1766 if (memcmp(new_fcport->port_name, fcport->port_name,
1767 WWN_SIZE))
1768 continue;
1769
1770 fcport->flags &= ~(FCF_FABRIC_DEVICE |
1771 FCF_PERSISTENT_BOUND);
1772 fcport->loop_id = new_fcport->loop_id;
1773 fcport->port_type = new_fcport->port_type;
1774 fcport->d_id.b24 = new_fcport->d_id.b24;
1775 memcpy(fcport->node_name, new_fcport->node_name,
1776 WWN_SIZE);
1777
1778 found++;
1779 break;
1780 }
1781
1782 if (!found) {
1783 /* New device, add to fcports list. */
1784 new_fcport->flags &= ~FCF_PERSISTENT_BOUND;
1785 list_add_tail(&new_fcport->list, &ha->fcports);
1786
1787 /* Allocate a new replacement fcport. */
1788 fcport = new_fcport;
1789 new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
1790 if (new_fcport == NULL) {
1791 rval = QLA_MEMORY_ALLOC_FAILED;
1792 goto cleanup_allocation;
1793 }
1794 new_fcport->flags &= ~FCF_FABRIC_DEVICE;
1795 }
1796
1797 qla2x00_update_fcport(ha, fcport);
1798
1799 found_devs++;
1800 }
1801
1802cleanup_allocation:
1803 if (new_fcport)
1804 kfree(new_fcport);
1805
1806 if (rval != QLA_SUCCESS) {
1807 DEBUG2(printk("scsi(%ld): Configure local loop error exit: "
1808 "rval=%x\n", ha->host_no, rval));
1809 }
1810
1811 if (found_devs) {
1812 ha->device_flags |= DFLG_LOCAL_DEVICES;
1813 ha->device_flags &= ~DFLG_RETRY_LOCAL_DEVICES;
1814 }
1815
1816 return (rval);
1817}
1818
1819static void
1820qla2x00_probe_for_all_luns(scsi_qla_host_t *ha)
1821{
1822 fc_port_t *fcport;
1823
1824 qla2x00_mark_all_devices_lost(ha);
1825 list_for_each_entry(fcport, &ha->fcports, list) {
1826 if (fcport->port_type != FCT_TARGET)
1827 continue;
1828
1829 qla2x00_update_fcport(ha, fcport);
1830 }
1831}
1832
1833/*
1834 * qla2x00_update_fcport
1835 * Updates device on list.
1836 *
1837 * Input:
1838 * ha = adapter block pointer.
1839 * fcport = port structure pointer.
1840 *
1841 * Return:
1842 * 0 - Success
1843 * BIT_0 - error
1844 *
1845 * Context:
1846 * Kernel context.
1847 */
1848static void
1849qla2x00_update_fcport(scsi_qla_host_t *ha, fc_port_t *fcport)
1850{
1851 uint16_t index;
1852 unsigned long flags;
1853 srb_t *sp;
1854
1855 fcport->ha = ha;
1856 fcport->login_retry = 0;
1857 fcport->port_login_retry_count = ha->port_down_retry_count *
1858 PORT_RETRY_TIME;
1859 atomic_set(&fcport->port_down_timer, ha->port_down_retry_count *
1860 PORT_RETRY_TIME);
1861 fcport->flags &= ~FCF_LOGIN_NEEDED;
1862
1863 /*
1864 * Check for outstanding cmd on tape Bypass LUN discovery if active
1865 * command on tape.
1866 */
1867 if (fcport->flags & FCF_TAPE_PRESENT) {
1868 spin_lock_irqsave(&ha->hardware_lock, flags);
1869 for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) {
bdf79621
AV		 1870 fc_port_t *sfcp;
1871
1da177e4 1872 if ((sp = ha->outstanding_cmds[index]) != 0) {
bdf79621
AV		 1873 sfcp = sp->fcport;
1874 if (sfcp == fcport) {
1da177e4
LT		 1875 atomic_set(&fcport->state, FCS_ONLINE);
1876 spin_unlock_irqrestore(
1877 &ha->hardware_lock, flags);
1878 return;
1879 }
1880 }
1881 }
1882 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1883 }
1884
1da177e4 1885 if (fcport->port_type == FCT_INITIATOR ||
bdf79621 1886 fcport->port_type == FCT_BROADCAST)
1da177e4 1887 fcport->device_type = TYPE_PROCESSOR;
bdf79621 1888
1da177e4 1889 atomic_set(&fcport->state, FCS_ONLINE);
bdf79621 1890
8482e118
AV		 1891 if (ha->flags.init_done)
1892 qla2x00_reg_remote_port(ha, fcport);
1da177e4
LT		 1893}
1894
8482e118
AV		 1895void
1896qla2x00_reg_remote_port(scsi_qla_host_t *ha, fc_port_t *fcport)
1897{
1898 struct fc_rport_identifiers rport_ids;
bdf79621 1899 struct fc_rport *rport;
8482e118
AV		 1900
1901 if (fcport->rport) {
1902 fc_remote_port_unblock(fcport->rport);
1903 return;
1904 }
1905
1906 rport_ids.node_name = be64_to_cpu(*(uint64_t *)fcport->node_name);
1907 rport_ids.port_name = be64_to_cpu(*(uint64_t *)fcport->port_name);
1908 rport_ids.port_id = fcport->d_id.b.domain << 16 |
1909 fcport->d_id.b.area << 8 | fcport->d_id.b.al_pa;
1910 rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
1911 if (fcport->port_type == FCT_INITIATOR)
1912 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
1913 if (fcport->port_type == FCT_TARGET)
1914 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
1915
bdf79621
AV		 1916 fcport->rport = rport = fc_remote_port_add(ha->host, 0, &rport_ids);
1917 if (!rport)
8482e118
AV		 1918 qla_printk(KERN_WARNING, ha,
1919 "Unable to allocate fc remote port!\n");
1da177e4 1920
bdf79621
AV		 1921 if (rport->scsi_target_id != -1 && rport->scsi_target_id < MAX_TARGETS)
1922 fcport->os_target_id = rport->scsi_target_id;
1da177e4 1923
bdf79621 1924 rport->dd_data = fcport;
1da177e4
LT		 1925}
1926
1da177e4
LT		 1927/*
1928 * qla2x00_configure_fabric
1929 * Setup SNS devices with loop ID's.
1930 *
1931 * Input:
1932 * ha = adapter block pointer.
1933 *
1934 * Returns:
1935 * 0 = success.
1936 * BIT_0 = error
1937 */
1938static int
1939qla2x00_configure_fabric(scsi_qla_host_t *ha)
1940{
1941 int rval, rval2;
1942 fc_port_t *fcport, *fcptemp;
1943 uint16_t next_loopid;
1944 uint16_t mb[MAILBOX_REGISTER_COUNT];
1945 LIST_HEAD(new_fcports);
1946
1947 /* If FL port exists, then SNS is present */
1948 rval = qla2x00_get_port_name(ha, SNS_FL_PORT, NULL, 0);
1949 if (rval != QLA_SUCCESS) {
1950 DEBUG2(printk("scsi(%ld): MBC_GET_PORT_NAME Failed, No FL "
1951 "Port\n", ha->host_no));
1952
1953 ha->device_flags &= ~SWITCH_FOUND;
1954 return (QLA_SUCCESS);
1955 }
1956
1957 /* Mark devices that need re-synchronization. */
1958 rval2 = qla2x00_device_resync(ha);
1959 if (rval2 == QLA_RSCNS_HANDLED) {
1960 /* No point doing the scan, just continue. */
1961 return (QLA_SUCCESS);
1962 }
1963 do {
1964 /* Ensure we are logged into the SNS. */
1965 qla2x00_login_fabric(ha, SIMPLE_NAME_SERVER, 0xff, 0xff, 0xfc,
1966 mb, BIT_1 | BIT_0);
1967 if (mb[0] != MBS_COMMAND_COMPLETE) {
1968 DEBUG2(qla_printk(KERN_INFO, ha,
1969 "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x "
1970 "mb[2]=%x mb[6]=%x mb[7]=%x\n", SIMPLE_NAME_SERVER,
1971 mb[0], mb[1], mb[2], mb[6], mb[7]));
1972 return (QLA_SUCCESS);
1973 }
1974
1975 if (test_and_clear_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags)) {
1976 if (qla2x00_rft_id(ha)) {
1977 /* EMPTY */
1978 DEBUG2(printk("scsi(%ld): Register FC-4 "
1979 "TYPE failed.\n", ha->host_no));
1980 }
1981 if (qla2x00_rff_id(ha)) {
1982 /* EMPTY */
1983 DEBUG2(printk("scsi(%ld): Register FC-4 "
1984 "Features failed.\n", ha->host_no));
1985 }
1986 if (qla2x00_rnn_id(ha)) {
1987 /* EMPTY */
1988 DEBUG2(printk("scsi(%ld): Register Node Name "
1989 "failed.\n", ha->host_no));
1990 } else if (qla2x00_rsnn_nn(ha)) {
1991 /* EMPTY */
1992 DEBUG2(printk("scsi(%ld): Register Symbolic "
1993 "Node Name failed.\n", ha->host_no));
1994 }
1995 }
1996
1997 rval = qla2x00_find_all_fabric_devs(ha, &new_fcports);
1998 if (rval != QLA_SUCCESS)
1999 break;
2000
2001 /*
2002 * Logout all previous fabric devices marked lost, except
2003 * tape devices.
2004 */
2005 list_for_each_entry(fcport, &ha->fcports, list) {
2006 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2007 break;
2008
2009 if ((fcport->flags & FCF_FABRIC_DEVICE) == 0)
2010 continue;
2011
2012 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2013 qla2x00_mark_device_lost(ha, fcport,
2014 ql2xplogiabsentdevice);
2015 if (fcport->loop_id != FC_NO_LOOP_ID &&
2016 (fcport->flags & FCF_TAPE_PRESENT) == 0 &&
2017 fcport->port_type != FCT_INITIATOR &&
2018 fcport->port_type != FCT_BROADCAST) {
2019
2020 qla2x00_fabric_logout(ha,
2021 fcport->loop_id);
2022 fcport->loop_id = FC_NO_LOOP_ID;
2023 }
2024 }
2025 }
2026
2027 /* Starting free loop ID. */
2028 next_loopid = ha->min_external_loopid;
2029
2030 /*
2031 * Scan through our port list and login entries that need to be
2032 * logged in.
2033 */
2034 list_for_each_entry(fcport, &ha->fcports, list) {
2035 if (atomic_read(&ha->loop_down_timer) ||
2036 test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2037 break;
2038
2039 if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 ||
2040 (fcport->flags & FCF_LOGIN_NEEDED) == 0)
2041 continue;
2042
2043 if (fcport->loop_id == FC_NO_LOOP_ID) {
2044 fcport->loop_id = next_loopid;
2045 rval = qla2x00_find_new_loop_id(ha, fcport);
2046 if (rval != QLA_SUCCESS) {
2047 /* Ran out of IDs to use */
2048 break;
2049 }
2050 }
2051
2052 /* Login and update database */
2053 qla2x00_fabric_dev_login(ha, fcport, &next_loopid);
2054 }
2055
2056 /* Exit if out of loop IDs. */
2057 if (rval != QLA_SUCCESS) {
2058 break;
2059 }
2060
2061 /*
2062 * Login and add the new devices to our port list.
2063 */
2064 list_for_each_entry_safe(fcport, fcptemp, &new_fcports, list) {
2065 if (atomic_read(&ha->loop_down_timer) ||
2066 test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2067 break;
2068
2069 /* Find a new loop ID to use. */
2070 fcport->loop_id = next_loopid;
2071 rval = qla2x00_find_new_loop_id(ha, fcport);
2072 if (rval != QLA_SUCCESS) {
2073 /* Ran out of IDs to use */
2074 break;
2075 }
2076
1da177e4
LT		 2077 /* Remove device from the new list and add it to DB */
2078 list_del(&fcport->list);
2079 list_add_tail(&fcport->list, &ha->fcports);
bdf79621
AV		 2080
2081 /* Login and update database */
2082 qla2x00_fabric_dev_login(ha, fcport, &next_loopid);
1da177e4
LT		 2083 }
2084 } while (0);
2085
2086 /* Free all new device structures not processed. */
2087 list_for_each_entry_safe(fcport, fcptemp, &new_fcports, list) {
2088 list_del(&fcport->list);
2089 kfree(fcport);
2090 }
2091
2092 if (rval) {
2093 DEBUG2(printk("scsi(%ld): Configure fabric error exit: "
2094 "rval=%d\n", ha->host_no, rval));
2095 }
2096
2097 return (rval);
2098}
2099
2100
2101/*
2102 * qla2x00_find_all_fabric_devs
2103 *
2104 * Input:
2105 * ha = adapter block pointer.
2106 * dev = database device entry pointer.
2107 *
2108 * Returns:
2109 * 0 = success.
2110 *
2111 * Context:
2112 * Kernel context.
2113 */
2114static int
2115qla2x00_find_all_fabric_devs(scsi_qla_host_t *ha, struct list_head *new_fcports)
2116{
2117 int rval;
2118 uint16_t loop_id;
2119 fc_port_t *fcport, *new_fcport, *fcptemp;
2120 int found;
2121
2122 sw_info_t *swl;
2123 int swl_idx;
2124 int first_dev, last_dev;
2125 port_id_t wrap, nxt_d_id;
2126
2127 rval = QLA_SUCCESS;
2128
2129 /* Try GID_PT to get device list, else GAN. */
2130 swl = kmalloc(sizeof(sw_info_t) * MAX_FIBRE_DEVICES, GFP_ATOMIC);
2131 if (swl == NULL) {
2132 /*EMPTY*/
2133 DEBUG2(printk("scsi(%ld): GID_PT allocations failed, fallback "
2134 "on GA_NXT\n", ha->host_no));
2135 } else {
2136 memset(swl, 0, sizeof(sw_info_t) * MAX_FIBRE_DEVICES);
2137 if (qla2x00_gid_pt(ha, swl) != QLA_SUCCESS) {
2138 kfree(swl);
2139 swl = NULL;
2140 } else if (qla2x00_gpn_id(ha, swl) != QLA_SUCCESS) {
2141 kfree(swl);
2142 swl = NULL;
2143 } else if (qla2x00_gnn_id(ha, swl) != QLA_SUCCESS) {
2144 kfree(swl);
2145 swl = NULL;
2146 }
2147 }
2148 swl_idx = 0;
2149
2150 /* Allocate temporary fcport for any new fcports discovered. */
2151 new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
2152 if (new_fcport == NULL) {
2153 if (swl)
2154 kfree(swl);
2155 return (QLA_MEMORY_ALLOC_FAILED);
2156 }
2157 new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
2158
2159 /* Set start port ID scan at adapter ID. */
2160 first_dev = 1;
2161 last_dev = 0;
2162
2163 /* Starting free loop ID. */
2164 loop_id = ha->min_external_loopid;
2165
2166 for (; loop_id <= ha->last_loop_id; loop_id++) {
2167 if (RESERVED_LOOP_ID(loop_id))
2168 continue;
2169
2170 if (atomic_read(&ha->loop_down_timer) ||
2171 test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2172 break;
2173
2174 if (swl != NULL) {
2175 if (last_dev) {
2176 wrap.b24 = new_fcport->d_id.b24;
2177 } else {
2178 new_fcport->d_id.b24 = swl[swl_idx].d_id.b24;
2179 memcpy(new_fcport->node_name,
2180 swl[swl_idx].node_name, WWN_SIZE);
2181 memcpy(new_fcport->port_name,
2182 swl[swl_idx].port_name, WWN_SIZE);
2183
2184 if (swl[swl_idx].d_id.b.rsvd_1 != 0) {
2185 last_dev = 1;
2186 }
2187 swl_idx++;
2188 }
2189 } else {
2190 /* Send GA_NXT to the switch */
2191 rval = qla2x00_ga_nxt(ha, new_fcport);
2192 if (rval != QLA_SUCCESS) {
2193 qla_printk(KERN_WARNING, ha,
2194 "SNS scan failed -- assuming zero-entry "
2195 "result...\n");
2196 list_for_each_entry_safe(fcport, fcptemp,
2197 new_fcports, list) {
2198 list_del(&fcport->list);
2199 kfree(fcport);
2200 }
2201 rval = QLA_SUCCESS;
2202 break;
2203 }
2204 }
2205
2206 /* If wrap on switch device list, exit. */
2207 if (first_dev) {
2208 wrap.b24 = new_fcport->d_id.b24;
2209 first_dev = 0;
2210 } else if (new_fcport->d_id.b24 == wrap.b24) {
2211 DEBUG2(printk("scsi(%ld): device wrap (%02x%02x%02x)\n",
2212 ha->host_no, new_fcport->d_id.b.domain,
2213 new_fcport->d_id.b.area, new_fcport->d_id.b.al_pa));
2214 break;
2215 }
2216
2217 /* Bypass if host adapter. */
2218 if (new_fcport->d_id.b24 == ha->d_id.b24)
2219 continue;
2220
2221 /* Bypass reserved domain fields. */
2222 if ((new_fcport->d_id.b.domain & 0xf0) == 0xf0)
2223 continue;
2224
2225 /* Locate matching device in database. */
2226 found = 0;
2227 list_for_each_entry(fcport, &ha->fcports, list) {
2228 if (memcmp(new_fcport->port_name, fcport->port_name,
2229 WWN_SIZE))
2230 continue;
2231
2232 found++;
2233
2234 /*
2235 * If address the same and state FCS_ONLINE, nothing
2236 * changed.
2237 */
2238 if (fcport->d_id.b24 == new_fcport->d_id.b24 &&
2239 atomic_read(&fcport->state) == FCS_ONLINE) {
2240 break;
2241 }
2242
2243 /*
2244 * If device was not a fabric device before.
2245 */
2246 if ((fcport->flags & FCF_FABRIC_DEVICE) == 0) {
2247 fcport->d_id.b24 = new_fcport->d_id.b24;
2248 fcport->loop_id = FC_NO_LOOP_ID;
2249 fcport->flags |= (FCF_FABRIC_DEVICE |
2250 FCF_LOGIN_NEEDED);
2251 fcport->flags &= ~FCF_PERSISTENT_BOUND;
2252 break;
2253 }
2254
2255 /*
2256 * Port ID changed or device was marked to be updated;
2257 * Log it out if still logged in and mark it for
2258 * relogin later.
2259 */
2260 fcport->d_id.b24 = new_fcport->d_id.b24;
2261 fcport->flags |= FCF_LOGIN_NEEDED;
2262 if (fcport->loop_id != FC_NO_LOOP_ID &&
2263 (fcport->flags & FCF_TAPE_PRESENT) == 0 &&
2264 fcport->port_type != FCT_INITIATOR &&
2265 fcport->port_type != FCT_BROADCAST) {
2266 qla2x00_fabric_logout(ha, fcport->loop_id);
2267 fcport->loop_id = FC_NO_LOOP_ID;
2268 }
2269
2270 break;
2271 }
2272
2273 if (found)
2274 continue;
2275
2276 /* If device was not in our fcports list, then add it. */
2277 list_add_tail(&new_fcport->list, new_fcports);
2278
2279 /* Allocate a new replacement fcport. */
2280 nxt_d_id.b24 = new_fcport->d_id.b24;
2281 new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
2282 if (new_fcport == NULL) {
2283 if (swl)
2284 kfree(swl);
2285 return (QLA_MEMORY_ALLOC_FAILED);
2286 }
2287 new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
2288 new_fcport->d_id.b24 = nxt_d_id.b24;
2289 }
2290
2291 if (swl)
2292 kfree(swl);
2293
2294 if (new_fcport)
2295 kfree(new_fcport);
2296
2297 if (!list_empty(new_fcports))
2298 ha->device_flags |= DFLG_FABRIC_DEVICES;
2299
2300 return (rval);
2301}
2302
2303/*
2304 * qla2x00_find_new_loop_id
2305 * Scan through our port list and find a new usable loop ID.
2306 *
2307 * Input:
2308 * ha: adapter state pointer.
2309 * dev: port structure pointer.
2310 *
2311 * Returns:
2312 * qla2x00 local function return status code.
2313 *
2314 * Context:
2315 * Kernel context.
2316 */
2317int
2318qla2x00_find_new_loop_id(scsi_qla_host_t *ha, fc_port_t *dev)
2319{
2320 int rval;
2321 int found;
2322 fc_port_t *fcport;
2323 uint16_t first_loop_id;
2324
2325 rval = QLA_SUCCESS;
2326
2327 /* Save starting loop ID. */
2328 first_loop_id = dev->loop_id;
2329
2330 for (;;) {
2331 /* Skip loop ID if already used by adapter. */
2332 if (dev->loop_id == ha->loop_id) {
2333 dev->loop_id++;
2334 }
2335
2336 /* Skip reserved loop IDs. */
2337 while (RESERVED_LOOP_ID(dev->loop_id)) {
2338 dev->loop_id++;
2339 }
2340
2341 /* Reset loop ID if passed the end. */
2342 if (dev->loop_id > ha->last_loop_id) {
2343 /* first loop ID. */
2344 dev->loop_id = ha->min_external_loopid;
2345 }
2346
2347 /* Check for loop ID being already in use. */
2348 found = 0;
2349 fcport = NULL;
2350 list_for_each_entry(fcport, &ha->fcports, list) {
2351 if (fcport->loop_id == dev->loop_id && fcport != dev) {
2352 /* ID possibly in use */
2353 found++;
2354 break;
2355 }
2356 }
2357
2358 /* If not in use then it is free to use. */
2359 if (!found) {
2360 break;
2361 }
2362
2363 /* ID in use. Try next value. */
2364 dev->loop_id++;
2365
2366 /* If wrap around. No free ID to use. */
2367 if (dev->loop_id == first_loop_id) {
2368 dev->loop_id = FC_NO_LOOP_ID;
2369 rval = QLA_FUNCTION_FAILED;
2370 break;
2371 }
2372 }
2373
2374 return (rval);
2375}
2376
2377/*
2378 * qla2x00_device_resync
2379 * Marks devices in the database that needs resynchronization.
2380 *
2381 * Input:
2382 * ha = adapter block pointer.
2383 *
2384 * Context:
2385 * Kernel context.
2386 */
2387static int
2388qla2x00_device_resync(scsi_qla_host_t *ha)
2389{
2390 int rval;
2391 int rval2;
2392 uint32_t mask;
2393 fc_port_t *fcport;
2394 uint32_t rscn_entry;
2395 uint8_t rscn_out_iter;
2396 uint8_t format;
2397 port_id_t d_id;
2398
2399 rval = QLA_RSCNS_HANDLED;
2400
2401 while (ha->rscn_out_ptr != ha->rscn_in_ptr ||
2402 ha->flags.rscn_queue_overflow) {
2403
2404 rscn_entry = ha->rscn_queue[ha->rscn_out_ptr];
2405 format = MSB(MSW(rscn_entry));
2406 d_id.b.domain = LSB(MSW(rscn_entry));
2407 d_id.b.area = MSB(LSW(rscn_entry));
2408 d_id.b.al_pa = LSB(LSW(rscn_entry));
2409
2410 DEBUG(printk("scsi(%ld): RSCN queue entry[%d] = "
2411 "[%02x/%02x%02x%02x].\n",
2412 ha->host_no, ha->rscn_out_ptr, format, d_id.b.domain,
2413 d_id.b.area, d_id.b.al_pa));
2414
2415 ha->rscn_out_ptr++;
2416 if (ha->rscn_out_ptr == MAX_RSCN_COUNT)
2417 ha->rscn_out_ptr = 0;
2418
2419 /* Skip duplicate entries. */
2420 for (rscn_out_iter = ha->rscn_out_ptr;
2421 !ha->flags.rscn_queue_overflow &&
2422 rscn_out_iter != ha->rscn_in_ptr;
2423 rscn_out_iter = (rscn_out_iter ==
2424 (MAX_RSCN_COUNT - 1)) ? 0: rscn_out_iter + 1) {
2425
2426 if (rscn_entry != ha->rscn_queue[rscn_out_iter])
2427 break;
2428
2429 DEBUG(printk("scsi(%ld): Skipping duplicate RSCN queue "
2430 "entry found at [%d].\n", ha->host_no,
2431 rscn_out_iter));
2432
2433 ha->rscn_out_ptr = rscn_out_iter;
2434 }
2435
2436 /* Queue overflow, set switch default case. */
2437 if (ha->flags.rscn_queue_overflow) {
2438 DEBUG(printk("scsi(%ld): device_resync: rscn "
2439 "overflow.\n", ha->host_no));
2440
2441 format = 3;
2442 ha->flags.rscn_queue_overflow = 0;
2443 }
2444
2445 switch (format) {
2446 case 0:
2447 if (!IS_QLA2100(ha) && !IS_QLA2200(ha) &&
2448 !IS_QLA6312(ha) && !IS_QLA6322(ha) &&
2449 ha->flags.init_done) {
2450 /* Handle port RSCN via asyncronous IOCBs */
2451 rval2 = qla2x00_handle_port_rscn(ha, rscn_entry,
2452 NULL, 0);
2453 if (rval2 == QLA_SUCCESS)
2454 continue;
2455 }
2456 mask = 0xffffff;
2457 break;
2458 case 1:
2459 mask = 0xffff00;
2460 break;
2461 case 2:
2462 mask = 0xff0000;
2463 break;
2464 default:
2465 mask = 0x0;
2466 d_id.b24 = 0;
2467 ha->rscn_out_ptr = ha->rscn_in_ptr;
2468 break;
2469 }
2470
2471 rval = QLA_SUCCESS;
2472
2473 /* Abort any outstanding IO descriptors. */
2474 if (!IS_QLA2100(ha) && !IS_QLA2200(ha))
2475 qla2x00_cancel_io_descriptors(ha);
2476
2477 list_for_each_entry(fcport, &ha->fcports, list) {
2478 if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 ||
2479 (fcport->d_id.b24 & mask) != d_id.b24 ||
2480 fcport->port_type == FCT_BROADCAST)
2481 continue;
2482
2483 if (atomic_read(&fcport->state) == FCS_ONLINE) {
2484 if (format != 3 ||
2485 fcport->port_type != FCT_INITIATOR) {
8482e118 2486 qla2x00_mark_device_lost(ha, fcport, 0);
1da177e4
LT		 2487 }
2488 }
2489 fcport->flags &= ~FCF_FARP_DONE;
2490 }
2491 }
2492 return (rval);
2493}
2494
2495/*
2496 * qla2x00_fabric_dev_login
2497 * Login fabric target device and update FC port database.
2498 *
2499 * Input:
2500 * ha: adapter state pointer.
2501 * fcport: port structure list pointer.
2502 * next_loopid: contains value of a new loop ID that can be used
2503 * by the next login attempt.
2504 *
2505 * Returns:
2506 * qla2x00 local function return status code.
2507 *
2508 * Context:
2509 * Kernel context.
2510 */
2511static int
2512qla2x00_fabric_dev_login(scsi_qla_host_t *ha, fc_port_t *fcport,
2513 uint16_t *next_loopid)
2514{
2515 int rval;
2516 int retry;
2517
2518 rval = QLA_SUCCESS;
2519 retry = 0;
2520
2521 rval = qla2x00_fabric_login(ha, fcport, next_loopid);
2522 if (rval == QLA_SUCCESS) {
2523 rval = qla2x00_get_port_database(ha, fcport, 0);
2524 if (rval != QLA_SUCCESS) {
2525 qla2x00_fabric_logout(ha, fcport->loop_id);
2526 } else {
2527 qla2x00_update_fcport(ha, fcport);
2528 }
2529 }
2530
2531 return (rval);
2532}
2533
2534/*
2535 * qla2x00_fabric_login
2536 * Issue fabric login command.
2537 *
2538 * Input:
2539 * ha = adapter block pointer.
2540 * device = pointer to FC device type structure.
2541 *
2542 * Returns:
2543 * 0 - Login successfully
2544 * 1 - Login failed
2545 * 2 - Initiator device
2546 * 3 - Fatal error
2547 */
2548int
2549qla2x00_fabric_login(scsi_qla_host_t *ha, fc_port_t *fcport,
2550 uint16_t *next_loopid)
2551{
2552 int rval;
2553 int retry;
2554 uint16_t tmp_loopid;
2555 uint16_t mb[MAILBOX_REGISTER_COUNT];
2556
2557 retry = 0;
2558 tmp_loopid = 0;
2559
2560 for (;;) {
2561 DEBUG(printk("scsi(%ld): Trying Fabric Login w/loop id 0x%04x "
2562 "for port %02x%02x%02x.\n",
2563 ha->host_no, fcport->loop_id, fcport->d_id.b.domain,
2564 fcport->d_id.b.area, fcport->d_id.b.al_pa));
2565
2566 /* Login fcport on switch. */
2567 qla2x00_login_fabric(ha, fcport->loop_id,
2568 fcport->d_id.b.domain, fcport->d_id.b.area,
2569 fcport->d_id.b.al_pa, mb, BIT_0);
2570 if (mb[0] == MBS_PORT_ID_USED) {
2571 /*
2572 * Device has another loop ID. The firmware team
2573 * recommends us to perform an implicit login with the
2574 * specified ID again. The ID we just used is save here
2575 * so we return with an ID that can be tried by the
2576 * next login.
2577 */
2578 retry++;
2579 tmp_loopid = fcport->loop_id;
2580 fcport->loop_id = mb[1];
2581
2582 DEBUG(printk("Fabric Login: port in use - next "
2583 "loop id=0x%04x, port Id=%02x%02x%02x.\n",
2584 fcport->loop_id, fcport->d_id.b.domain,
2585 fcport->d_id.b.area, fcport->d_id.b.al_pa));
2586
2587 } else if (mb[0] == MBS_COMMAND_COMPLETE) {
2588 /*
2589 * Login succeeded.
2590 */
2591 if (retry) {
2592 /* A retry occurred before. */
2593 *next_loopid = tmp_loopid;
2594 } else {
2595 /*
2596 * No retry occurred before. Just increment the
2597 * ID value for next login.
2598 */
2599 *next_loopid = (fcport->loop_id + 1);
2600 }
2601
2602 if (mb[1] & BIT_0) {
2603 fcport->port_type = FCT_INITIATOR;
2604 } else {
2605 fcport->port_type = FCT_TARGET;
2606 if (mb[1] & BIT_1) {
2607 fcport->flags |= FCF_TAPE_PRESENT;
2608 }
2609 }
2610
2611 rval = QLA_SUCCESS;
2612 break;
2613 } else if (mb[0] == MBS_LOOP_ID_USED) {
2614 /*
2615 * Loop ID already used, try next loop ID.
2616 */
2617 fcport->loop_id++;
2618 rval = qla2x00_find_new_loop_id(ha, fcport);
2619 if (rval != QLA_SUCCESS) {
2620 /* Ran out of loop IDs to use */
2621 break;
2622 }
2623 } else if (mb[0] == MBS_COMMAND_ERROR) {
2624 /*
2625 * Firmware possibly timed out during login. If NO
2626 * retries are left to do then the device is declared
2627 * dead.
2628 */
2629 *next_loopid = fcport->loop_id;
2630 qla2x00_fabric_logout(ha, fcport->loop_id);
2631 qla2x00_mark_device_lost(ha, fcport, 1);
2632
2633 rval = 1;
2634 break;
2635 } else {
2636 /*
2637 * unrecoverable / not handled error
2638 */
2639 DEBUG2(printk("%s(%ld): failed=%x port_id=%02x%02x%02x "
2640 "loop_id=%x jiffies=%lx.\n",
2641 __func__, ha->host_no, mb[0],
2642 fcport->d_id.b.domain, fcport->d_id.b.area,
2643 fcport->d_id.b.al_pa, fcport->loop_id, jiffies));
2644
2645 *next_loopid = fcport->loop_id;
2646 qla2x00_fabric_logout(ha, fcport->loop_id);
2647 fcport->loop_id = FC_NO_LOOP_ID;
2648 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
2649
2650 rval = 3;
2651 break;
2652 }
2653 }
2654
2655 return (rval);
2656}
2657
2658/*
2659 * qla2x00_local_device_login
2660 * Issue local device login command.
2661 *
2662 * Input:
2663 * ha = adapter block pointer.
2664 * loop_id = loop id of device to login to.
2665 *
2666 * Returns (Where's the #define!!!!):
2667 * 0 - Login successfully
2668 * 1 - Login failed
2669 * 3 - Fatal error
2670 */
2671int
2672qla2x00_local_device_login(scsi_qla_host_t *ha, uint16_t loop_id)
2673{
2674 int rval;
2675 uint16_t mb[MAILBOX_REGISTER_COUNT];
2676
2677 memset(mb, 0, sizeof(mb));
2678 rval = qla2x00_login_local_device(ha, loop_id, mb, BIT_0);
2679 if (rval == QLA_SUCCESS) {
2680 /* Interrogate mailbox registers for any errors */
2681 if (mb[0] == MBS_COMMAND_ERROR)
2682 rval = 1;
2683 else if (mb[0] == MBS_COMMAND_PARAMETER_ERROR)
2684 /* device not in PCB table */
2685 rval = 3;
2686 }
2687
2688 return (rval);
2689}
2690
2691/*
2692 * qla2x00_loop_resync
2693 * Resync with fibre channel devices.
2694 *
2695 * Input:
2696 * ha = adapter block pointer.
2697 *
2698 * Returns:
2699 * 0 = success
2700 */
2701int
2702qla2x00_loop_resync(scsi_qla_host_t *ha)
2703{
2704 int rval;
2705 uint32_t wait_time;
2706
2707 rval = QLA_SUCCESS;
2708
2709 atomic_set(&ha->loop_state, LOOP_UPDATE);
2710 qla2x00_stats.loop_resync++;
2711 clear_bit(ISP_ABORT_RETRY, &ha->dpc_flags);
2712 if (ha->flags.online) {
2713 if (!(rval = qla2x00_fw_ready(ha))) {
2714 /* Wait at most MAX_TARGET RSCNs for a stable link. */
2715 wait_time = 256;
2716 do {
2717 /* v2.19.05b6 */
2718 atomic_set(&ha->loop_state, LOOP_UPDATE);
2719
2720 /*
2721 * Issue marker command only when we are going
2722 * to start the I/O .
2723 */
2724 ha->marker_needed = 1;
2725
2726 /* Remap devices on Loop. */
2727 clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2728
2729 qla2x00_configure_loop(ha);
2730 wait_time--;
2731 } while (!atomic_read(&ha->loop_down_timer) &&
2732 !(test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) &&
2733 wait_time &&
2734 (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)));
2735 }
1da177e4
LT		 2736 }
2737
2738 if (test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2739 return (QLA_FUNCTION_FAILED);
2740 }
2741
2742 if (rval) {
2743 DEBUG2_3(printk("%s(): **** FAILED ****\n", __func__));
2744 }
2745
2746 return (rval);
2747}
2748
1da177e4
LT		 2749void
2750qla2x00_rescan_fcports(scsi_qla_host_t *ha)
2751{
2752 int rescan_done;
2753 fc_port_t *fcport;
2754
2755 rescan_done = 0;
2756 list_for_each_entry(fcport, &ha->fcports, list) {
2757 if ((fcport->flags & FCF_RESCAN_NEEDED) == 0)
2758 continue;
2759
2760 qla2x00_update_fcport(ha, fcport);
2761 fcport->flags &= ~FCF_RESCAN_NEEDED;
2762
2763 rescan_done = 1;
2764 }
2765 qla2x00_probe_for_all_luns(ha);
1da177e4
LT		 2766}
2767
2768/*
2769* qla2x00_abort_isp
2770* Resets ISP and aborts all outstanding commands.
2771*
2772* Input:
2773* ha = adapter block pointer.
2774*
2775* Returns:
2776* 0 = success
2777*/
2778int
2779qla2x00_abort_isp(scsi_qla_host_t *ha)
2780{
2781 unsigned long flags = 0;
2782 uint16_t cnt;
2783 srb_t *sp;
2784 uint8_t status = 0;
2785
2786 if (ha->flags.online) {
2787 ha->flags.online = 0;
2788 clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2789 qla2x00_stats.ispAbort++;
2790 ha->total_isp_aborts++; /* used by ioctl */
2791 ha->sns_retry_cnt = 0;
2792
2793 qla_printk(KERN_INFO, ha,
2794 "Performing ISP error recovery - ha= %p.\n", ha);
2795 qla2x00_reset_chip(ha);
2796
2797 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
2798 if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
2799 atomic_set(&ha->loop_state, LOOP_DOWN);
2800 qla2x00_mark_all_devices_lost(ha);
2801 } else {
2802 if (!atomic_read(&ha->loop_down_timer))
2803 atomic_set(&ha->loop_down_timer,
2804 LOOP_DOWN_TIME);
2805 }
2806
2807 spin_lock_irqsave(&ha->hardware_lock, flags);
2808 /* Requeue all commands in outstanding command list. */
2809 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
2810 sp = ha->outstanding_cmds[cnt];
2811 if (sp) {
2812 ha->outstanding_cmds[cnt] = NULL;
2813 if (ha->actthreads)
2814 ha->actthreads--;
1da177e4 2815 sp->flags = 0;
f4f051eb 2816 sp->cmd->result = DID_RESET << 16;
1da177e4 2817 sp->cmd->host_scribble = (unsigned char *)NULL;
f4f051eb 2818 qla2x00_sp_compl(ha, sp);
1da177e4
LT		 2819 }
2820 }
2821 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2822
2823 qla2x00_nvram_config(ha);
2824
2825 if (!qla2x00_restart_isp(ha)) {
2826 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
2827
2828 if (!atomic_read(&ha->loop_down_timer)) {
2829 /*
2830 * Issue marker command only when we are going
2831 * to start the I/O .
2832 */
2833 ha->marker_needed = 1;
2834 }
2835
2836 ha->flags.online = 1;
2837
2838 /* Enable ISP interrupts. */
2839 qla2x00_enable_intrs(ha);
2840
1da177e4
LT		 2841 ha->isp_abort_cnt = 0;
2842 clear_bit(ISP_ABORT_RETRY, &ha->dpc_flags);
2843 } else { /* failed the ISP abort */
2844 ha->flags.online = 1;
2845 if (test_bit(ISP_ABORT_RETRY, &ha->dpc_flags)) {
2846 if (ha->isp_abort_cnt == 0) {
2847 qla_printk(KERN_WARNING, ha,
2848 "ISP error recovery failed - "
2849 "board disabled\n");
2850 /*
2851 * The next call disables the board
2852 * completely.
2853 */
2854 qla2x00_reset_adapter(ha);
1da177e4
LT		 2855 ha->flags.online = 0;
2856 clear_bit(ISP_ABORT_RETRY,
2857 &ha->dpc_flags);
2858 status = 0;
2859 } else { /* schedule another ISP abort */
2860 ha->isp_abort_cnt--;
2861 DEBUG(printk("qla%ld: ISP abort - "
2862 "retry remainning %d\n",
2863 ha->host_no, ha->isp_abort_cnt);)
2864 status = 1;
2865 }
2866 } else {
2867 ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT;
2868 DEBUG(printk("qla2x00(%ld): ISP error recovery "
2869 "- retrying (%d) more times\n",
2870 ha->host_no, ha->isp_abort_cnt);)
2871 set_bit(ISP_ABORT_RETRY, &ha->dpc_flags);
2872 status = 1;
2873 }
2874 }
2875
2876 }
2877
2878 if (status) {
2879 qla_printk(KERN_INFO, ha,
2880 "qla2x00_abort_isp: **** FAILED ****\n");
2881 } else {
2882 DEBUG(printk(KERN_INFO
2883 "qla2x00_abort_isp(%ld): exiting.\n",
2884 ha->host_no);)
2885 }
2886
2887 return(status);
2888}
2889
2890/*
2891* qla2x00_restart_isp
2892* restarts the ISP after a reset
2893*
2894* Input:
2895* ha = adapter block pointer.
2896*
2897* Returns:
2898* 0 = success
2899*/
2900static int
2901qla2x00_restart_isp(scsi_qla_host_t *ha)
2902{
2903 uint8_t status = 0;
2904 device_reg_t __iomem *reg = ha->iobase;
2905 unsigned long flags = 0;
2906 uint32_t wait_time;
2907
2908 /* If firmware needs to be loaded */
2909 if (qla2x00_isp_firmware(ha)) {
2910 ha->flags.online = 0;
2911 if (!(status = qla2x00_chip_diag(ha))) {
2912 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
2913 status = qla2x00_setup_chip(ha);
2914 goto done;
2915 }
2916
2917 reg = ha->iobase;
2918
2919 spin_lock_irqsave(&ha->hardware_lock, flags);
2920
2921 /* Disable SRAM, Instruction RAM and GP RAM parity. */
2922 WRT_REG_WORD(&reg->hccr, (HCCR_ENABLE_PARITY + 0x0));
2923 RD_REG_WORD(&reg->hccr); /* PCI Posting. */
2924
2925 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2926
2927 status = qla2x00_setup_chip(ha);
2928
2929 spin_lock_irqsave(&ha->hardware_lock, flags);
2930
2931 /* Enable proper parity */
2932 if (IS_QLA2300(ha))
2933 /* SRAM parity */
2934 WRT_REG_WORD(&reg->hccr,
2935 (HCCR_ENABLE_PARITY + 0x1));
2936 else
2937 /* SRAM, Instruction RAM and GP RAM parity */
2938 WRT_REG_WORD(&reg->hccr,
2939 (HCCR_ENABLE_PARITY + 0x7));
2940 RD_REG_WORD(&reg->hccr); /* PCI Posting. */
2941
2942 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2943 }
2944 }
2945
2946 done:
2947 if (!status && !(status = qla2x00_init_rings(ha))) {
2948 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
2949 if (!(status = qla2x00_fw_ready(ha))) {
2950 DEBUG(printk("%s(): Start configure loop, "
2951 "status = %d\n",
2952 __func__,
2953 status);)
2954 ha->flags.online = 1;
2955 /* Wait at most MAX_TARGET RSCNs for a stable link. */
2956 wait_time = 256;
2957 do {
2958 clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2959 qla2x00_configure_loop(ha);
2960 wait_time--;
2961 } while (!atomic_read(&ha->loop_down_timer) &&
2962 !(test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) &&
2963 wait_time &&
2964 (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)));
2965 }
2966
2967 /* if no cable then assume it's good */
2968 if ((ha->device_flags & DFLG_NO_CABLE))
2969 status = 0;
2970
2971 DEBUG(printk("%s(): Configure loop done, status = 0x%x\n",
2972 __func__,
2973 status);)
2974 }
2975 return (status);
2976}
2977
2978/*
2979* qla2x00_reset_adapter
2980* Reset adapter.
2981*
2982* Input:
2983* ha = adapter block pointer.
2984*/
2985static void
2986qla2x00_reset_adapter(scsi_qla_host_t *ha)
2987{
2988 unsigned long flags = 0;
2989 device_reg_t __iomem *reg = ha->iobase;
2990
2991 ha->flags.online = 0;
2992 qla2x00_disable_intrs(ha);
2993
2994 /* Reset RISC processor. */
2995 spin_lock_irqsave(&ha->hardware_lock, flags);
2996 WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
2997 RD_REG_WORD(&reg->hccr); /* PCI Posting. */
2998 WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
2999 RD_REG_WORD(&reg->hccr); /* PCI Posting. */
3000 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3001}
kernel source for telekom puls (alcatel/mediatek)