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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 | */ | |
37 | static int qla2x00_pci_config(scsi_qla_host_t *); | |
38 | static int qla2x00_isp_firmware(scsi_qla_host_t *); | |
39 | static void qla2x00_reset_chip(scsi_qla_host_t *); | |
40 | static int qla2x00_chip_diag(scsi_qla_host_t *); | |
41 | static void qla2x00_resize_request_q(scsi_qla_host_t *); | |
42 | static int qla2x00_setup_chip(scsi_qla_host_t *); | |
43 | static void qla2x00_init_response_q_entries(scsi_qla_host_t *); | |
44 | static int qla2x00_init_rings(scsi_qla_host_t *); | |
45 | static int qla2x00_fw_ready(scsi_qla_host_t *); | |
46 | static int qla2x00_configure_hba(scsi_qla_host_t *); | |
47 | static int qla2x00_nvram_config(scsi_qla_host_t *); | |
1da177e4 LT |
48 | static int qla2x00_configure_loop(scsi_qla_host_t *); |
49 | static int qla2x00_configure_local_loop(scsi_qla_host_t *); | |
50 | static void qla2x00_update_fcport(scsi_qla_host_t *, fc_port_t *); | |
1da177e4 LT |
51 | static int qla2x00_configure_fabric(scsi_qla_host_t *); |
52 | static int qla2x00_find_all_fabric_devs(scsi_qla_host_t *, struct list_head *); | |
53 | static int qla2x00_device_resync(scsi_qla_host_t *); | |
54 | static int qla2x00_fabric_dev_login(scsi_qla_host_t *, fc_port_t *, | |
55 | uint16_t *); | |
1da177e4 LT |
56 | |
57 | static int qla2x00_restart_isp(scsi_qla_host_t *); | |
58 | static 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 | */ | |
74 | int | |
75 | qla2x00_initialize_adapter(scsi_qla_host_t *ha) | |
76 | { | |
77 | int rval; | |
78 | uint8_t restart_risc = 0; | |
79 | uint8_t retry; | |
80 | uint32_t wait_time; | |
81 | ||
82 | /* Clear adapter flags. */ | |
83 | ha->flags.online = 0; | |
84 | ha->flags.reset_active = 0; | |
85 | atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME); | |
86 | atomic_set(&ha->loop_state, LOOP_DOWN); | |
87 | ha->device_flags = 0; | |
1da177e4 | 88 | ha->dpc_flags = 0; |
1da177e4 LT |
89 | ha->flags.management_server_logged_in = 0; |
90 | ha->marker_needed = 0; | |
91 | ha->mbx_flags = 0; | |
92 | ha->isp_abort_cnt = 0; | |
93 | ha->beacon_blink_led = 0; | |
94 | ||
95 | rval = qla2x00_pci_config(ha); | |
96 | if (rval) { | |
97 | DEBUG2(printk("scsi(%ld): Unable to configure PCI space=n", | |
98 | ha->host_no)); | |
99 | return (rval); | |
100 | } | |
101 | ||
102 | qla2x00_reset_chip(ha); | |
103 | ||
1da177e4 LT |
104 | qla_printk(KERN_INFO, ha, "Configure NVRAM parameters...\n"); |
105 | qla2x00_nvram_config(ha); | |
106 | ||
107 | qla_printk(KERN_INFO, ha, "Verifying loaded RISC code...\n"); | |
108 | ||
109 | retry = 10; | |
110 | /* | |
111 | * Try to configure the loop. | |
112 | */ | |
113 | do { | |
114 | restart_risc = 0; | |
115 | ||
116 | /* If firmware needs to be loaded */ | |
117 | if (qla2x00_isp_firmware(ha) != QLA_SUCCESS) { | |
118 | if ((rval = qla2x00_chip_diag(ha)) == QLA_SUCCESS) { | |
119 | rval = qla2x00_setup_chip(ha); | |
120 | } | |
121 | } | |
122 | ||
123 | if (rval == QLA_SUCCESS && | |
124 | (rval = qla2x00_init_rings(ha)) == QLA_SUCCESS) { | |
125 | check_fw_ready_again: | |
126 | /* | |
127 | * Wait for a successful LIP up to a maximum | |
128 | * of (in seconds): RISC login timeout value, | |
129 | * RISC retry count value, and port down retry | |
130 | * value OR a minimum of 4 seconds OR If no | |
131 | * cable, only 5 seconds. | |
132 | */ | |
133 | rval = qla2x00_fw_ready(ha); | |
134 | if (rval == QLA_SUCCESS) { | |
135 | clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags); | |
136 | ||
137 | /* | |
138 | * Wait at most MAX_TARGET RSCNs for a stable | |
139 | * link. | |
140 | */ | |
141 | wait_time = 256; | |
142 | do { | |
143 | clear_bit(LOOP_RESYNC_NEEDED, | |
144 | &ha->dpc_flags); | |
145 | rval = qla2x00_configure_loop(ha); | |
146 | ||
147 | if (test_and_clear_bit(ISP_ABORT_NEEDED, | |
148 | &ha->dpc_flags)) { | |
149 | restart_risc = 1; | |
150 | break; | |
151 | } | |
152 | ||
153 | /* | |
154 | * If loop state change while we were | |
155 | * discoverying devices then wait for | |
156 | * LIP to complete | |
157 | */ | |
158 | ||
159 | if (atomic_read(&ha->loop_state) == | |
160 | LOOP_DOWN && retry--) { | |
161 | goto check_fw_ready_again; | |
162 | } | |
163 | wait_time--; | |
164 | } while (!atomic_read(&ha->loop_down_timer) && | |
165 | retry && | |
166 | wait_time && | |
167 | (test_bit(LOOP_RESYNC_NEEDED, | |
168 | &ha->dpc_flags))); | |
169 | ||
170 | if (wait_time == 0) | |
171 | rval = QLA_FUNCTION_FAILED; | |
1da177e4 LT |
172 | } else if (ha->device_flags & DFLG_NO_CABLE) |
173 | /* If no cable, then all is good. */ | |
174 | rval = QLA_SUCCESS; | |
175 | } | |
176 | } while (restart_risc && retry--); | |
177 | ||
178 | if (rval == QLA_SUCCESS) { | |
179 | clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags); | |
180 | ha->marker_needed = 1; | |
181 | qla2x00_marker(ha, 0, 0, MK_SYNC_ALL); | |
182 | ha->marker_needed = 0; | |
183 | ||
184 | ha->flags.online = 1; | |
185 | } else { | |
186 | DEBUG2_3(printk("%s(): **** FAILED ****\n", __func__)); | |
187 | } | |
188 | ||
189 | return (rval); | |
190 | } | |
191 | ||
192 | /** | |
193 | * qla2x00_pci_config() - Setup device PCI configuration registers. | |
194 | * @ha: HA context | |
195 | * | |
196 | * Returns 0 on success. | |
197 | */ | |
198 | static int | |
199 | qla2x00_pci_config(scsi_qla_host_t *ha) | |
200 | { | |
201 | uint16_t w, mwi; | |
202 | unsigned long flags = 0; | |
203 | uint32_t cnt; | |
204 | ||
205 | qla_printk(KERN_INFO, ha, "Configuring PCI space...\n"); | |
206 | ||
207 | /* | |
208 | * Turn on PCI master; for system BIOSes that don't turn it on by | |
209 | * default. | |
210 | */ | |
211 | pci_set_master(ha->pdev); | |
212 | mwi = 0; | |
213 | if (pci_set_mwi(ha->pdev)) | |
214 | mwi = PCI_COMMAND_INVALIDATE; | |
215 | pci_read_config_word(ha->pdev, PCI_REVISION_ID, &ha->revision); | |
216 | ||
217 | if (!ha->iobase) | |
218 | return (QLA_FUNCTION_FAILED); | |
219 | ||
220 | /* | |
221 | * We want to respect framework's setting of PCI configuration space | |
222 | * command register and also want to make sure that all bits of | |
223 | * interest to us are properly set in command register. | |
224 | */ | |
225 | pci_read_config_word(ha->pdev, PCI_COMMAND, &w); | |
226 | w |= mwi | (PCI_COMMAND_PARITY | PCI_COMMAND_SERR); | |
227 | ||
228 | /* Get PCI bus information. */ | |
229 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
230 | ha->pci_attr = RD_REG_WORD(&ha->iobase->ctrl_status); | |
231 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
232 | ||
233 | if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) { | |
234 | pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80); | |
235 | ||
236 | /* PCI Specification Revision 2.3 changes */ | |
237 | if (IS_QLA2322(ha) || IS_QLA6322(ha)) | |
238 | /* Command Register - Reset Interrupt Disable. */ | |
239 | w &= ~PCI_COMMAND_INTX_DISABLE; | |
240 | ||
241 | /* | |
242 | * If this is a 2300 card and not 2312, reset the | |
243 | * COMMAND_INVALIDATE due to a bug in the 2300. Unfortunately, | |
244 | * the 2310 also reports itself as a 2300 so we need to get the | |
245 | * fb revision level -- a 6 indicates it really is a 2300 and | |
246 | * not a 2310. | |
247 | */ | |
248 | if (IS_QLA2300(ha)) { | |
249 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
250 | ||
251 | /* Pause RISC. */ | |
252 | WRT_REG_WORD(&ha->iobase->hccr, HCCR_PAUSE_RISC); | |
253 | for (cnt = 0; cnt < 30000; cnt++) { | |
254 | if ((RD_REG_WORD(&ha->iobase->hccr) & | |
255 | HCCR_RISC_PAUSE) != 0) | |
256 | break; | |
257 | ||
258 | udelay(10); | |
259 | } | |
260 | ||
261 | /* Select FPM registers. */ | |
262 | WRT_REG_WORD(&ha->iobase->ctrl_status, 0x20); | |
263 | RD_REG_WORD(&ha->iobase->ctrl_status); | |
264 | ||
265 | /* Get the fb rev level */ | |
266 | ha->fb_rev = RD_FB_CMD_REG(ha, ha->iobase); | |
267 | ||
268 | if (ha->fb_rev == FPM_2300) | |
269 | w &= ~PCI_COMMAND_INVALIDATE; | |
270 | ||
271 | /* Deselect FPM registers. */ | |
272 | WRT_REG_WORD(&ha->iobase->ctrl_status, 0x0); | |
273 | RD_REG_WORD(&ha->iobase->ctrl_status); | |
274 | ||
275 | /* Release RISC module. */ | |
276 | WRT_REG_WORD(&ha->iobase->hccr, HCCR_RELEASE_RISC); | |
277 | for (cnt = 0; cnt < 30000; cnt++) { | |
278 | if ((RD_REG_WORD(&ha->iobase->hccr) & | |
279 | HCCR_RISC_PAUSE) == 0) | |
280 | break; | |
281 | ||
282 | udelay(10); | |
283 | } | |
284 | ||
285 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
286 | } | |
287 | } | |
288 | ||
289 | pci_write_config_word(ha->pdev, PCI_COMMAND, w); | |
290 | ||
291 | /* Reset expansion ROM address decode enable */ | |
292 | pci_read_config_word(ha->pdev, PCI_ROM_ADDRESS, &w); | |
293 | w &= ~PCI_ROM_ADDRESS_ENABLE; | |
294 | pci_write_config_word(ha->pdev, PCI_ROM_ADDRESS, w); | |
295 | ||
296 | return (QLA_SUCCESS); | |
297 | } | |
298 | ||
299 | /** | |
300 | * qla2x00_isp_firmware() - Choose firmware image. | |
301 | * @ha: HA context | |
302 | * | |
303 | * Returns 0 on success. | |
304 | */ | |
305 | static int | |
306 | qla2x00_isp_firmware(scsi_qla_host_t *ha) | |
307 | { | |
308 | int rval; | |
309 | ||
310 | /* Assume loading risc code */ | |
311 | rval = QLA_FUNCTION_FAILED; | |
312 | ||
313 | if (ha->flags.disable_risc_code_load) { | |
314 | DEBUG2(printk("scsi(%ld): RISC CODE NOT loaded\n", | |
315 | ha->host_no)); | |
316 | qla_printk(KERN_INFO, ha, "RISC CODE NOT loaded\n"); | |
317 | ||
318 | /* Verify checksum of loaded RISC code. */ | |
319 | rval = qla2x00_verify_checksum(ha); | |
320 | } | |
321 | ||
322 | if (rval) { | |
323 | DEBUG2_3(printk("scsi(%ld): **** Load RISC code ****\n", | |
324 | ha->host_no)); | |
325 | } | |
326 | ||
327 | return (rval); | |
328 | } | |
329 | ||
330 | /** | |
331 | * qla2x00_reset_chip() - Reset ISP chip. | |
332 | * @ha: HA context | |
333 | * | |
334 | * Returns 0 on success. | |
335 | */ | |
336 | static void | |
337 | qla2x00_reset_chip(scsi_qla_host_t *ha) | |
338 | { | |
339 | unsigned long flags = 0; | |
340 | device_reg_t __iomem *reg = ha->iobase; | |
341 | uint32_t cnt; | |
342 | unsigned long mbx_flags = 0; | |
343 | uint16_t cmd; | |
344 | ||
345 | /* Disable ISP interrupts. */ | |
346 | qla2x00_disable_intrs(ha); | |
347 | ||
348 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
349 | ||
350 | /* Turn off master enable */ | |
351 | cmd = 0; | |
352 | pci_read_config_word(ha->pdev, PCI_COMMAND, &cmd); | |
353 | cmd &= ~PCI_COMMAND_MASTER; | |
354 | pci_write_config_word(ha->pdev, PCI_COMMAND, cmd); | |
355 | ||
356 | if (!IS_QLA2100(ha)) { | |
357 | /* Pause RISC. */ | |
358 | WRT_REG_WORD(®->hccr, HCCR_PAUSE_RISC); | |
359 | if (IS_QLA2200(ha) || IS_QLA2300(ha)) { | |
360 | for (cnt = 0; cnt < 30000; cnt++) { | |
361 | if ((RD_REG_WORD(®->hccr) & | |
362 | HCCR_RISC_PAUSE) != 0) | |
363 | break; | |
364 | udelay(100); | |
365 | } | |
366 | } else { | |
367 | RD_REG_WORD(®->hccr); /* PCI Posting. */ | |
368 | udelay(10); | |
369 | } | |
370 | ||
371 | /* Select FPM registers. */ | |
372 | WRT_REG_WORD(®->ctrl_status, 0x20); | |
373 | RD_REG_WORD(®->ctrl_status); /* PCI Posting. */ | |
374 | ||
375 | /* FPM Soft Reset. */ | |
376 | WRT_REG_WORD(®->fpm_diag_config, 0x100); | |
377 | RD_REG_WORD(®->fpm_diag_config); /* PCI Posting. */ | |
378 | ||
379 | /* Toggle Fpm Reset. */ | |
380 | if (!IS_QLA2200(ha)) { | |
381 | WRT_REG_WORD(®->fpm_diag_config, 0x0); | |
382 | RD_REG_WORD(®->fpm_diag_config); /* PCI Posting. */ | |
383 | } | |
384 | ||
385 | /* Select frame buffer registers. */ | |
386 | WRT_REG_WORD(®->ctrl_status, 0x10); | |
387 | RD_REG_WORD(®->ctrl_status); /* PCI Posting. */ | |
388 | ||
389 | /* Reset frame buffer FIFOs. */ | |
390 | if (IS_QLA2200(ha)) { | |
391 | WRT_FB_CMD_REG(ha, reg, 0xa000); | |
392 | RD_FB_CMD_REG(ha, reg); /* PCI Posting. */ | |
393 | } else { | |
394 | WRT_FB_CMD_REG(ha, reg, 0x00fc); | |
395 | ||
396 | /* Read back fb_cmd until zero or 3 seconds max */ | |
397 | for (cnt = 0; cnt < 3000; cnt++) { | |
398 | if ((RD_FB_CMD_REG(ha, reg) & 0xff) == 0) | |
399 | break; | |
400 | udelay(100); | |
401 | } | |
402 | } | |
403 | ||
404 | /* Select RISC module registers. */ | |
405 | WRT_REG_WORD(®->ctrl_status, 0); | |
406 | RD_REG_WORD(®->ctrl_status); /* PCI Posting. */ | |
407 | ||
408 | /* Reset RISC processor. */ | |
409 | WRT_REG_WORD(®->hccr, HCCR_RESET_RISC); | |
410 | RD_REG_WORD(®->hccr); /* PCI Posting. */ | |
411 | ||
412 | /* Release RISC processor. */ | |
413 | WRT_REG_WORD(®->hccr, HCCR_RELEASE_RISC); | |
414 | RD_REG_WORD(®->hccr); /* PCI Posting. */ | |
415 | } | |
416 | ||
417 | WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); | |
418 | WRT_REG_WORD(®->hccr, HCCR_CLR_HOST_INT); | |
419 | ||
420 | /* Reset ISP chip. */ | |
421 | WRT_REG_WORD(®->ctrl_status, CSR_ISP_SOFT_RESET); | |
422 | ||
423 | /* Wait for RISC to recover from reset. */ | |
424 | if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) { | |
425 | /* | |
426 | * It is necessary to for a delay here since the card doesn't | |
427 | * respond to PCI reads during a reset. On some architectures | |
428 | * this will result in an MCA. | |
429 | */ | |
430 | udelay(20); | |
431 | for (cnt = 30000; cnt; cnt--) { | |
432 | if ((RD_REG_WORD(®->ctrl_status) & | |
433 | CSR_ISP_SOFT_RESET) == 0) | |
434 | break; | |
435 | udelay(100); | |
436 | } | |
437 | } else | |
438 | udelay(10); | |
439 | ||
440 | /* Reset RISC processor. */ | |
441 | WRT_REG_WORD(®->hccr, HCCR_RESET_RISC); | |
442 | ||
443 | WRT_REG_WORD(®->semaphore, 0); | |
444 | ||
445 | /* Release RISC processor. */ | |
446 | WRT_REG_WORD(®->hccr, HCCR_RELEASE_RISC); | |
447 | RD_REG_WORD(®->hccr); /* PCI Posting. */ | |
448 | ||
449 | if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) { | |
450 | for (cnt = 0; cnt < 30000; cnt++) { | |
451 | if (!(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) | |
452 | spin_lock_irqsave(&ha->mbx_reg_lock, mbx_flags); | |
453 | ||
454 | if (RD_MAILBOX_REG(ha, reg, 0) != MBS_BUSY) { | |
455 | if (!(test_bit(ABORT_ISP_ACTIVE, | |
456 | &ha->dpc_flags))) | |
457 | spin_unlock_irqrestore( | |
458 | &ha->mbx_reg_lock, mbx_flags); | |
459 | break; | |
460 | } | |
461 | ||
462 | if (!(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) | |
463 | spin_unlock_irqrestore(&ha->mbx_reg_lock, | |
464 | mbx_flags); | |
465 | ||
466 | udelay(100); | |
467 | } | |
468 | } else | |
469 | udelay(100); | |
470 | ||
471 | /* Turn on master enable */ | |
472 | cmd |= PCI_COMMAND_MASTER; | |
473 | pci_write_config_word(ha->pdev, PCI_COMMAND, cmd); | |
474 | ||
475 | /* Disable RISC pause on FPM parity error. */ | |
476 | if (!IS_QLA2100(ha)) { | |
477 | WRT_REG_WORD(®->hccr, HCCR_DISABLE_PARITY_PAUSE); | |
478 | RD_REG_WORD(®->hccr); /* PCI Posting. */ | |
479 | } | |
480 | ||
481 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
482 | } | |
483 | ||
484 | /** | |
485 | * qla2x00_chip_diag() - Test chip for proper operation. | |
486 | * @ha: HA context | |
487 | * | |
488 | * Returns 0 on success. | |
489 | */ | |
490 | static int | |
491 | qla2x00_chip_diag(scsi_qla_host_t *ha) | |
492 | { | |
493 | int rval; | |
494 | device_reg_t __iomem *reg = ha->iobase; | |
495 | unsigned long flags = 0; | |
496 | uint16_t data; | |
497 | uint32_t cnt; | |
498 | uint16_t mb[5]; | |
499 | ||
500 | /* Assume a failed state */ | |
501 | rval = QLA_FUNCTION_FAILED; | |
502 | ||
503 | DEBUG3(printk("scsi(%ld): Testing device at %lx.\n", | |
504 | ha->host_no, (u_long)®->flash_address)); | |
505 | ||
506 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
507 | ||
508 | /* Reset ISP chip. */ | |
509 | WRT_REG_WORD(®->ctrl_status, CSR_ISP_SOFT_RESET); | |
510 | ||
511 | /* | |
512 | * We need to have a delay here since the card will not respond while | |
513 | * in reset causing an MCA on some architectures. | |
514 | */ | |
515 | udelay(20); | |
516 | data = qla2x00_debounce_register(®->ctrl_status); | |
517 | for (cnt = 6000000 ; cnt && (data & CSR_ISP_SOFT_RESET); cnt--) { | |
518 | udelay(5); | |
519 | data = RD_REG_WORD(®->ctrl_status); | |
520 | barrier(); | |
521 | } | |
522 | ||
523 | if (!cnt) | |
524 | goto chip_diag_failed; | |
525 | ||
526 | DEBUG3(printk("scsi(%ld): Reset register cleared by chip reset\n", | |
527 | ha->host_no)); | |
528 | ||
529 | /* Reset RISC processor. */ | |
530 | WRT_REG_WORD(®->hccr, HCCR_RESET_RISC); | |
531 | WRT_REG_WORD(®->hccr, HCCR_RELEASE_RISC); | |
532 | ||
533 | /* Workaround for QLA2312 PCI parity error */ | |
534 | if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) { | |
535 | data = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 0)); | |
536 | for (cnt = 6000000; cnt && (data == MBS_BUSY); cnt--) { | |
537 | udelay(5); | |
538 | data = RD_MAILBOX_REG(ha, reg, 0); | |
539 | barrier(); | |
540 | } | |
541 | } else | |
542 | udelay(10); | |
543 | ||
544 | if (!cnt) | |
545 | goto chip_diag_failed; | |
546 | ||
547 | /* Check product ID of chip */ | |
548 | DEBUG3(printk("scsi(%ld): Checking product ID of chip\n", ha->host_no)); | |
549 | ||
550 | mb[1] = RD_MAILBOX_REG(ha, reg, 1); | |
551 | mb[2] = RD_MAILBOX_REG(ha, reg, 2); | |
552 | mb[3] = RD_MAILBOX_REG(ha, reg, 3); | |
553 | mb[4] = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 4)); | |
554 | if (mb[1] != PROD_ID_1 || (mb[2] != PROD_ID_2 && mb[2] != PROD_ID_2a) || | |
555 | mb[3] != PROD_ID_3) { | |
556 | qla_printk(KERN_WARNING, ha, | |
557 | "Wrong product ID = 0x%x,0x%x,0x%x\n", mb[1], mb[2], mb[3]); | |
558 | ||
559 | goto chip_diag_failed; | |
560 | } | |
561 | ha->product_id[0] = mb[1]; | |
562 | ha->product_id[1] = mb[2]; | |
563 | ha->product_id[2] = mb[3]; | |
564 | ha->product_id[3] = mb[4]; | |
565 | ||
566 | /* Adjust fw RISC transfer size */ | |
567 | if (ha->request_q_length > 1024) | |
568 | ha->fw_transfer_size = REQUEST_ENTRY_SIZE * 1024; | |
569 | else | |
570 | ha->fw_transfer_size = REQUEST_ENTRY_SIZE * | |
571 | ha->request_q_length; | |
572 | ||
573 | if (IS_QLA2200(ha) && | |
574 | RD_MAILBOX_REG(ha, reg, 7) == QLA2200A_RISC_ROM_VER) { | |
575 | /* Limit firmware transfer size with a 2200A */ | |
576 | DEBUG3(printk("scsi(%ld): Found QLA2200A chip.\n", | |
577 | ha->host_no)); | |
578 | ||
579 | ha->fw_transfer_size = 128; | |
580 | } | |
581 | ||
582 | /* Wrap Incoming Mailboxes Test. */ | |
583 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
584 | ||
585 | DEBUG3(printk("scsi(%ld): Checking mailboxes.\n", ha->host_no)); | |
586 | rval = qla2x00_mbx_reg_test(ha); | |
587 | if (rval) { | |
588 | DEBUG(printk("scsi(%ld): Failed mailbox send register test\n", | |
589 | ha->host_no)); | |
590 | qla_printk(KERN_WARNING, ha, | |
591 | "Failed mailbox send register test\n"); | |
592 | } | |
593 | else { | |
594 | /* Flag a successful rval */ | |
595 | rval = QLA_SUCCESS; | |
596 | } | |
597 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
598 | ||
599 | chip_diag_failed: | |
600 | if (rval) | |
601 | DEBUG2_3(printk("scsi(%ld): Chip diagnostics **** FAILED " | |
602 | "****\n", ha->host_no)); | |
603 | ||
604 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
605 | ||
606 | return (rval); | |
607 | } | |
608 | ||
609 | /** | |
610 | * qla2x00_resize_request_q() - Resize request queue given available ISP memory. | |
611 | * @ha: HA context | |
612 | * | |
613 | * Returns 0 on success. | |
614 | */ | |
615 | static void | |
616 | qla2x00_resize_request_q(scsi_qla_host_t *ha) | |
617 | { | |
618 | int rval; | |
619 | uint16_t fw_iocb_cnt = 0; | |
620 | uint16_t request_q_length = REQUEST_ENTRY_CNT_2XXX_EXT_MEM; | |
621 | dma_addr_t request_dma; | |
622 | request_t *request_ring; | |
623 | ||
624 | /* Valid only on recent ISPs. */ | |
625 | if (IS_QLA2100(ha) || IS_QLA2200(ha)) | |
626 | return; | |
627 | ||
628 | /* Retrieve IOCB counts available to the firmware. */ | |
629 | rval = qla2x00_get_resource_cnts(ha, NULL, NULL, NULL, &fw_iocb_cnt); | |
630 | if (rval) | |
631 | return; | |
632 | /* No point in continuing if current settings are sufficient. */ | |
633 | if (fw_iocb_cnt < 1024) | |
634 | return; | |
635 | if (ha->request_q_length >= request_q_length) | |
636 | return; | |
637 | ||
638 | /* Attempt to claim larger area for request queue. */ | |
639 | request_ring = dma_alloc_coherent(&ha->pdev->dev, | |
640 | (request_q_length + 1) * sizeof(request_t), &request_dma, | |
641 | GFP_KERNEL); | |
642 | if (request_ring == NULL) | |
643 | return; | |
644 | ||
645 | /* Resize successful, report extensions. */ | |
646 | qla_printk(KERN_INFO, ha, "Extended memory detected (%d KB)...\n", | |
647 | (ha->fw_memory_size + 1) / 1024); | |
648 | qla_printk(KERN_INFO, ha, "Resizing request queue depth " | |
649 | "(%d -> %d)...\n", ha->request_q_length, request_q_length); | |
650 | ||
651 | /* Clear old allocations. */ | |
652 | dma_free_coherent(&ha->pdev->dev, | |
653 | (ha->request_q_length + 1) * sizeof(request_t), ha->request_ring, | |
654 | ha->request_dma); | |
655 | ||
656 | /* Begin using larger queue. */ | |
657 | ha->request_q_length = request_q_length; | |
658 | ha->request_ring = request_ring; | |
659 | ha->request_dma = request_dma; | |
660 | } | |
661 | ||
662 | /** | |
663 | * qla2x00_setup_chip() - Load and start RISC firmware. | |
664 | * @ha: HA context | |
665 | * | |
666 | * Returns 0 on success. | |
667 | */ | |
668 | static int | |
669 | qla2x00_setup_chip(scsi_qla_host_t *ha) | |
670 | { | |
671 | int rval; | |
672 | uint16_t cnt; | |
673 | uint16_t *risc_code; | |
674 | unsigned long risc_address; | |
675 | unsigned long risc_code_size; | |
676 | int num; | |
677 | int i; | |
678 | uint16_t *req_ring; | |
679 | struct qla_fw_info *fw_iter; | |
680 | ||
681 | rval = QLA_SUCCESS; | |
682 | ||
683 | /* Load firmware sequences */ | |
684 | fw_iter = ha->brd_info->fw_info; | |
685 | while (fw_iter->addressing != FW_INFO_ADDR_NOMORE) { | |
686 | risc_code = fw_iter->fwcode; | |
687 | risc_code_size = *fw_iter->fwlen; | |
688 | ||
689 | if (fw_iter->addressing == FW_INFO_ADDR_NORMAL) { | |
690 | risc_address = *fw_iter->fwstart; | |
691 | } else { | |
692 | /* Extended address */ | |
693 | risc_address = *fw_iter->lfwstart; | |
694 | } | |
695 | ||
696 | num = 0; | |
697 | rval = 0; | |
698 | while (risc_code_size > 0 && !rval) { | |
699 | cnt = (uint16_t)(ha->fw_transfer_size >> 1); | |
700 | if (cnt > risc_code_size) | |
701 | cnt = risc_code_size; | |
702 | ||
703 | DEBUG7(printk("scsi(%ld): Loading risc segment@ " | |
704 | "addr %p, number of bytes 0x%x, offset 0x%lx.\n", | |
705 | ha->host_no, risc_code, cnt, risc_address)); | |
706 | ||
707 | req_ring = (uint16_t *)ha->request_ring; | |
708 | for (i = 0; i < cnt; i++) | |
709 | req_ring[i] = cpu_to_le16(risc_code[i]); | |
710 | ||
711 | if (fw_iter->addressing == FW_INFO_ADDR_NORMAL) { | |
712 | rval = qla2x00_load_ram(ha, | |
713 | ha->request_dma, risc_address, cnt); | |
714 | } else { | |
715 | rval = qla2x00_load_ram_ext(ha, | |
716 | ha->request_dma, risc_address, cnt); | |
717 | } | |
718 | if (rval) { | |
719 | DEBUG(printk("scsi(%ld): [ERROR] Failed to " | |
720 | "load segment %d of firmware\n", | |
721 | ha->host_no, num)); | |
722 | qla_printk(KERN_WARNING, ha, | |
723 | "[ERROR] Failed to load " | |
724 | "segment %d of firmware\n", num); | |
725 | ||
726 | qla2x00_dump_regs(ha); | |
727 | break; | |
728 | } | |
729 | ||
730 | risc_code += cnt; | |
731 | risc_address += cnt; | |
732 | risc_code_size -= cnt; | |
733 | num++; | |
734 | } | |
735 | ||
736 | /* Next firmware sequence */ | |
737 | fw_iter++; | |
738 | } | |
739 | ||
740 | /* Verify checksum of loaded RISC code. */ | |
741 | if (!rval) { | |
742 | DEBUG(printk("scsi(%ld): Verifying Checksum of loaded RISC " | |
743 | "code.\n", ha->host_no)); | |
744 | ||
745 | rval = qla2x00_verify_checksum(ha); | |
746 | if (rval == QLA_SUCCESS) { | |
747 | /* Start firmware execution. */ | |
748 | DEBUG(printk("scsi(%ld): Checksum OK, start " | |
749 | "firmware.\n", ha->host_no)); | |
750 | ||
751 | rval = qla2x00_execute_fw(ha); | |
752 | /* Retrieve firmware information. */ | |
753 | if (rval == QLA_SUCCESS && ha->fw_major_version == 0) { | |
754 | qla2x00_get_fw_version(ha, | |
755 | &ha->fw_major_version, | |
756 | &ha->fw_minor_version, | |
757 | &ha->fw_subminor_version, | |
758 | &ha->fw_attributes, &ha->fw_memory_size); | |
759 | qla2x00_resize_request_q(ha); | |
760 | } | |
761 | } else { | |
762 | DEBUG2(printk(KERN_INFO | |
763 | "scsi(%ld): ISP Firmware failed checksum.\n", | |
764 | ha->host_no)); | |
765 | } | |
766 | } | |
767 | ||
768 | if (rval) { | |
769 | DEBUG2_3(printk("scsi(%ld): Setup chip **** FAILED ****.\n", | |
770 | ha->host_no)); | |
771 | } | |
772 | ||
773 | return (rval); | |
774 | } | |
775 | ||
776 | /** | |
777 | * qla2x00_init_response_q_entries() - Initializes response queue entries. | |
778 | * @ha: HA context | |
779 | * | |
780 | * Beginning of request ring has initialization control block already built | |
781 | * by nvram config routine. | |
782 | * | |
783 | * Returns 0 on success. | |
784 | */ | |
785 | static void | |
786 | qla2x00_init_response_q_entries(scsi_qla_host_t *ha) | |
787 | { | |
788 | uint16_t cnt; | |
789 | response_t *pkt; | |
790 | ||
791 | pkt = ha->response_ring_ptr; | |
792 | for (cnt = 0; cnt < ha->response_q_length; cnt++) { | |
793 | pkt->signature = RESPONSE_PROCESSED; | |
794 | pkt++; | |
795 | } | |
796 | ||
797 | } | |
798 | ||
799 | /** | |
800 | * qla2x00_update_fw_options() - Read and process firmware options. | |
801 | * @ha: HA context | |
802 | * | |
803 | * Returns 0 on success. | |
804 | */ | |
805 | static void | |
806 | qla2x00_update_fw_options(scsi_qla_host_t *ha) | |
807 | { | |
808 | uint16_t swing, emphasis, tx_sens, rx_sens; | |
809 | ||
810 | memset(ha->fw_options, 0, sizeof(ha->fw_options)); | |
811 | qla2x00_get_fw_options(ha, ha->fw_options); | |
812 | ||
813 | if (IS_QLA2100(ha) || IS_QLA2200(ha)) | |
814 | return; | |
815 | ||
816 | /* Serial Link options. */ | |
817 | DEBUG3(printk("scsi(%ld): Serial link options:\n", | |
818 | ha->host_no)); | |
819 | DEBUG3(qla2x00_dump_buffer((uint8_t *)&ha->fw_seriallink_options, | |
820 | sizeof(ha->fw_seriallink_options))); | |
821 | ||
822 | ha->fw_options[1] &= ~FO1_SET_EMPHASIS_SWING; | |
823 | if (ha->fw_seriallink_options[3] & BIT_2) { | |
824 | ha->fw_options[1] |= FO1_SET_EMPHASIS_SWING; | |
825 | ||
826 | /* 1G settings */ | |
827 | swing = ha->fw_seriallink_options[2] & (BIT_2 | BIT_1 | BIT_0); | |
828 | emphasis = (ha->fw_seriallink_options[2] & | |
829 | (BIT_4 | BIT_3)) >> 3; | |
830 | tx_sens = ha->fw_seriallink_options[0] & | |
831 | (BIT_3 | BIT_2 | BIT_1 | BIT_0); | |
832 | rx_sens = (ha->fw_seriallink_options[0] & | |
833 | (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4; | |
834 | ha->fw_options[10] = (emphasis << 14) | (swing << 8); | |
835 | if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) { | |
836 | if (rx_sens == 0x0) | |
837 | rx_sens = 0x3; | |
838 | ha->fw_options[10] |= (tx_sens << 4) | rx_sens; | |
839 | } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) | |
840 | ha->fw_options[10] |= BIT_5 | | |
841 | ((rx_sens & (BIT_1 | BIT_0)) << 2) | | |
842 | (tx_sens & (BIT_1 | BIT_0)); | |
843 | ||
844 | /* 2G settings */ | |
845 | swing = (ha->fw_seriallink_options[2] & | |
846 | (BIT_7 | BIT_6 | BIT_5)) >> 5; | |
847 | emphasis = ha->fw_seriallink_options[3] & (BIT_1 | BIT_0); | |
848 | tx_sens = ha->fw_seriallink_options[1] & | |
849 | (BIT_3 | BIT_2 | BIT_1 | BIT_0); | |
850 | rx_sens = (ha->fw_seriallink_options[1] & | |
851 | (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4; | |
852 | ha->fw_options[11] = (emphasis << 14) | (swing << 8); | |
853 | if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) { | |
854 | if (rx_sens == 0x0) | |
855 | rx_sens = 0x3; | |
856 | ha->fw_options[11] |= (tx_sens << 4) | rx_sens; | |
857 | } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) | |
858 | ha->fw_options[11] |= BIT_5 | | |
859 | ((rx_sens & (BIT_1 | BIT_0)) << 2) | | |
860 | (tx_sens & (BIT_1 | BIT_0)); | |
861 | } | |
862 | ||
863 | /* FCP2 options. */ | |
864 | /* Return command IOCBs without waiting for an ABTS to complete. */ | |
865 | ha->fw_options[3] |= BIT_13; | |
866 | ||
867 | /* LED scheme. */ | |
868 | if (ha->flags.enable_led_scheme) | |
869 | ha->fw_options[2] |= BIT_12; | |
870 | ||
871 | /* Update firmware options. */ | |
872 | qla2x00_set_fw_options(ha, ha->fw_options); | |
873 | } | |
874 | ||
875 | /** | |
876 | * qla2x00_init_rings() - Initializes firmware. | |
877 | * @ha: HA context | |
878 | * | |
879 | * Beginning of request ring has initialization control block already built | |
880 | * by nvram config routine. | |
881 | * | |
882 | * Returns 0 on success. | |
883 | */ | |
884 | static int | |
885 | qla2x00_init_rings(scsi_qla_host_t *ha) | |
886 | { | |
887 | int rval; | |
888 | unsigned long flags = 0; | |
889 | int cnt; | |
890 | device_reg_t __iomem *reg = ha->iobase; | |
891 | ||
892 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
893 | ||
894 | /* Clear outstanding commands array. */ | |
895 | for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) | |
896 | ha->outstanding_cmds[cnt] = NULL; | |
897 | ||
898 | ha->current_outstanding_cmd = 0; | |
899 | ||
900 | /* Clear RSCN queue. */ | |
901 | ha->rscn_in_ptr = 0; | |
902 | ha->rscn_out_ptr = 0; | |
903 | ||
904 | /* Initialize firmware. */ | |
905 | ha->request_ring_ptr = ha->request_ring; | |
906 | ha->req_ring_index = 0; | |
907 | ha->req_q_cnt = ha->request_q_length; | |
908 | ha->response_ring_ptr = ha->response_ring; | |
909 | ha->rsp_ring_index = 0; | |
910 | ||
911 | /* Setup ring parameters in initialization control block. */ | |
912 | ha->init_cb->request_q_outpointer = __constant_cpu_to_le16(0); | |
913 | ha->init_cb->response_q_inpointer = __constant_cpu_to_le16(0); | |
914 | ha->init_cb->request_q_length = cpu_to_le16(ha->request_q_length); | |
915 | ha->init_cb->response_q_length = cpu_to_le16(ha->response_q_length); | |
916 | ha->init_cb->request_q_address[0] = cpu_to_le32(LSD(ha->request_dma)); | |
917 | ha->init_cb->request_q_address[1] = cpu_to_le32(MSD(ha->request_dma)); | |
918 | ha->init_cb->response_q_address[0] = cpu_to_le32(LSD(ha->response_dma)); | |
919 | ha->init_cb->response_q_address[1] = cpu_to_le32(MSD(ha->response_dma)); | |
920 | ||
921 | /* Initialize response queue entries */ | |
922 | qla2x00_init_response_q_entries(ha); | |
923 | ||
924 | WRT_REG_WORD(ISP_REQ_Q_IN(ha, reg), 0); | |
925 | WRT_REG_WORD(ISP_REQ_Q_OUT(ha, reg), 0); | |
926 | WRT_REG_WORD(ISP_RSP_Q_IN(ha, reg), 0); | |
927 | WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), 0); | |
928 | RD_REG_WORD(ISP_RSP_Q_OUT(ha, reg)); /* PCI Posting. */ | |
929 | ||
930 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
931 | ||
932 | /* Update any ISP specific firmware options before initialization. */ | |
933 | qla2x00_update_fw_options(ha); | |
934 | ||
935 | DEBUG(printk("scsi(%ld): Issue init firmware.\n", ha->host_no)); | |
936 | rval = qla2x00_init_firmware(ha, sizeof(init_cb_t)); | |
937 | if (rval) { | |
938 | DEBUG2_3(printk("scsi(%ld): Init firmware **** FAILED ****.\n", | |
939 | ha->host_no)); | |
940 | } else { | |
941 | DEBUG3(printk("scsi(%ld): Init firmware -- success.\n", | |
942 | ha->host_no)); | |
943 | } | |
944 | ||
945 | return (rval); | |
946 | } | |
947 | ||
948 | /** | |
949 | * qla2x00_fw_ready() - Waits for firmware ready. | |
950 | * @ha: HA context | |
951 | * | |
952 | * Returns 0 on success. | |
953 | */ | |
954 | static int | |
955 | qla2x00_fw_ready(scsi_qla_host_t *ha) | |
956 | { | |
957 | int rval; | |
958 | unsigned long wtime, mtime; | |
959 | uint16_t min_wait; /* Minimum wait time if loop is down */ | |
960 | uint16_t wait_time; /* Wait time if loop is coming ready */ | |
961 | uint16_t fw_state; | |
962 | ||
963 | rval = QLA_SUCCESS; | |
964 | ||
965 | /* 20 seconds for loop down. */ | |
966 | min_wait = 20; | |
967 | ||
968 | /* | |
969 | * Firmware should take at most one RATOV to login, plus 5 seconds for | |
970 | * our own processing. | |
971 | */ | |
972 | if ((wait_time = (ha->retry_count*ha->login_timeout) + 5) < min_wait) { | |
973 | wait_time = min_wait; | |
974 | } | |
975 | ||
976 | /* Min wait time if loop down */ | |
977 | mtime = jiffies + (min_wait * HZ); | |
978 | ||
979 | /* wait time before firmware ready */ | |
980 | wtime = jiffies + (wait_time * HZ); | |
981 | ||
982 | /* Wait for ISP to finish LIP */ | |
983 | if (!ha->flags.init_done) | |
984 | qla_printk(KERN_INFO, ha, "Waiting for LIP to complete...\n"); | |
985 | ||
986 | DEBUG3(printk("scsi(%ld): Waiting for LIP to complete...\n", | |
987 | ha->host_no)); | |
988 | ||
989 | do { | |
990 | rval = qla2x00_get_firmware_state(ha, &fw_state); | |
991 | if (rval == QLA_SUCCESS) { | |
992 | if (fw_state < FSTATE_LOSS_OF_SYNC) { | |
993 | ha->device_flags &= ~DFLG_NO_CABLE; | |
994 | } | |
995 | if (fw_state == FSTATE_READY) { | |
996 | DEBUG(printk("scsi(%ld): F/W Ready - OK \n", | |
997 | ha->host_no)); | |
998 | ||
999 | qla2x00_get_retry_cnt(ha, &ha->retry_count, | |
1000 | &ha->login_timeout, &ha->r_a_tov); | |
1001 | ||
1002 | rval = QLA_SUCCESS; | |
1003 | break; | |
1004 | } | |
1005 | ||
1006 | rval = QLA_FUNCTION_FAILED; | |
1007 | ||
1008 | if (atomic_read(&ha->loop_down_timer) && | |
1009 | (fw_state >= FSTATE_LOSS_OF_SYNC || | |
1010 | fw_state == FSTATE_WAIT_AL_PA)) { | |
1011 | /* Loop down. Timeout on min_wait for states | |
1012 | * other than Wait for Login. | |
1013 | */ | |
1014 | if (time_after_eq(jiffies, mtime)) { | |
1015 | qla_printk(KERN_INFO, ha, | |
1016 | "Cable is unplugged...\n"); | |
1017 | ||
1018 | ha->device_flags |= DFLG_NO_CABLE; | |
1019 | break; | |
1020 | } | |
1021 | } | |
1022 | } else { | |
1023 | /* Mailbox cmd failed. Timeout on min_wait. */ | |
1024 | if (time_after_eq(jiffies, mtime)) | |
1025 | break; | |
1026 | } | |
1027 | ||
1028 | if (time_after_eq(jiffies, wtime)) | |
1029 | break; | |
1030 | ||
1031 | /* Delay for a while */ | |
1032 | msleep(500); | |
1033 | ||
1034 | DEBUG3(printk("scsi(%ld): fw_state=%x curr time=%lx.\n", | |
1035 | ha->host_no, fw_state, jiffies)); | |
1036 | } while (1); | |
1037 | ||
1038 | DEBUG(printk("scsi(%ld): fw_state=%x curr time=%lx.\n", | |
1039 | ha->host_no, fw_state, jiffies)); | |
1040 | ||
1041 | if (rval) { | |
1042 | DEBUG2_3(printk("scsi(%ld): Firmware ready **** FAILED ****.\n", | |
1043 | ha->host_no)); | |
1044 | } | |
1045 | ||
1046 | return (rval); | |
1047 | } | |
1048 | ||
1049 | /* | |
1050 | * qla2x00_configure_hba | |
1051 | * Setup adapter context. | |
1052 | * | |
1053 | * Input: | |
1054 | * ha = adapter state pointer. | |
1055 | * | |
1056 | * Returns: | |
1057 | * 0 = success | |
1058 | * | |
1059 | * Context: | |
1060 | * Kernel context. | |
1061 | */ | |
1062 | static int | |
1063 | qla2x00_configure_hba(scsi_qla_host_t *ha) | |
1064 | { | |
1065 | int rval; | |
1066 | uint16_t loop_id; | |
1067 | uint16_t topo; | |
1068 | uint8_t al_pa; | |
1069 | uint8_t area; | |
1070 | uint8_t domain; | |
1071 | char connect_type[22]; | |
1072 | ||
1073 | /* Get host addresses. */ | |
1074 | rval = qla2x00_get_adapter_id(ha, | |
1075 | &loop_id, &al_pa, &area, &domain, &topo); | |
1076 | if (rval != QLA_SUCCESS) { | |
1077 | qla_printk(KERN_WARNING, ha, | |
1078 | "ERROR -- Unable to get host loop ID.\n"); | |
1079 | set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); | |
1080 | return (rval); | |
1081 | } | |
1082 | ||
1083 | if (topo == 4) { | |
1084 | qla_printk(KERN_INFO, ha, | |
1085 | "Cannot get topology - retrying.\n"); | |
1086 | return (QLA_FUNCTION_FAILED); | |
1087 | } | |
1088 | ||
1089 | ha->loop_id = loop_id; | |
1090 | ||
1091 | /* initialize */ | |
1092 | ha->min_external_loopid = SNS_FIRST_LOOP_ID; | |
1093 | ha->operating_mode = LOOP; | |
1094 | ||
1095 | switch (topo) { | |
1096 | case 0: | |
1097 | DEBUG3(printk("scsi(%ld): HBA in NL topology.\n", | |
1098 | ha->host_no)); | |
1099 | ha->current_topology = ISP_CFG_NL; | |
1100 | strcpy(connect_type, "(Loop)"); | |
1101 | break; | |
1102 | ||
1103 | case 1: | |
1104 | DEBUG3(printk("scsi(%ld): HBA in FL topology.\n", | |
1105 | ha->host_no)); | |
1106 | ha->current_topology = ISP_CFG_FL; | |
1107 | strcpy(connect_type, "(FL_Port)"); | |
1108 | break; | |
1109 | ||
1110 | case 2: | |
1111 | DEBUG3(printk("scsi(%ld): HBA in N P2P topology.\n", | |
1112 | ha->host_no)); | |
1113 | ha->operating_mode = P2P; | |
1114 | ha->current_topology = ISP_CFG_N; | |
1115 | strcpy(connect_type, "(N_Port-to-N_Port)"); | |
1116 | break; | |
1117 | ||
1118 | case 3: | |
1119 | DEBUG3(printk("scsi(%ld): HBA in F P2P topology.\n", | |
1120 | ha->host_no)); | |
1121 | ha->operating_mode = P2P; | |
1122 | ha->current_topology = ISP_CFG_F; | |
1123 | strcpy(connect_type, "(F_Port)"); | |
1124 | break; | |
1125 | ||
1126 | default: | |
1127 | DEBUG3(printk("scsi(%ld): HBA in unknown topology %x. " | |
1128 | "Using NL.\n", | |
1129 | ha->host_no, topo)); | |
1130 | ha->current_topology = ISP_CFG_NL; | |
1131 | strcpy(connect_type, "(Loop)"); | |
1132 | break; | |
1133 | } | |
1134 | ||
1135 | /* Save Host port and loop ID. */ | |
1136 | /* byte order - Big Endian */ | |
1137 | ha->d_id.b.domain = domain; | |
1138 | ha->d_id.b.area = area; | |
1139 | ha->d_id.b.al_pa = al_pa; | |
1140 | ||
1141 | if (!ha->flags.init_done) | |
1142 | qla_printk(KERN_INFO, ha, | |
1143 | "Topology - %s, Host Loop address 0x%x\n", | |
1144 | connect_type, ha->loop_id); | |
1145 | ||
1146 | if (rval) { | |
1147 | DEBUG2_3(printk("scsi(%ld): FAILED.\n", ha->host_no)); | |
1148 | } else { | |
1149 | DEBUG3(printk("scsi(%ld): exiting normally.\n", ha->host_no)); | |
1150 | } | |
1151 | ||
1152 | return(rval); | |
1153 | } | |
1154 | ||
1155 | /* | |
1156 | * NVRAM configuration for ISP 2xxx | |
1157 | * | |
1158 | * Input: | |
1159 | * ha = adapter block pointer. | |
1160 | * | |
1161 | * Output: | |
1162 | * initialization control block in response_ring | |
1163 | * host adapters parameters in host adapter block | |
1164 | * | |
1165 | * Returns: | |
1166 | * 0 = success. | |
1167 | */ | |
1168 | static int | |
1169 | qla2x00_nvram_config(scsi_qla_host_t *ha) | |
1170 | { | |
1171 | int rval; | |
1172 | uint8_t chksum = 0; | |
1173 | uint16_t cnt; | |
1174 | uint8_t *dptr1, *dptr2; | |
1175 | init_cb_t *icb = ha->init_cb; | |
1176 | nvram_t *nv = (nvram_t *)ha->request_ring; | |
1177 | uint16_t *wptr = (uint16_t *)ha->request_ring; | |
1178 | device_reg_t __iomem *reg = ha->iobase; | |
1179 | uint8_t timer_mode; | |
1180 | ||
1181 | rval = QLA_SUCCESS; | |
1182 | ||
1183 | /* Determine NVRAM starting address. */ | |
1184 | ha->nvram_base = 0; | |
1185 | if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA2300(ha)) | |
1186 | if ((RD_REG_WORD(®->ctrl_status) >> 14) == 1) | |
1187 | ha->nvram_base = 0x80; | |
1188 | ||
1189 | /* Get NVRAM data and calculate checksum. */ | |
1190 | qla2x00_lock_nvram_access(ha); | |
1191 | for (cnt = 0; cnt < sizeof(nvram_t)/2; cnt++) { | |
1192 | *wptr = cpu_to_le16(qla2x00_get_nvram_word(ha, | |
1193 | (cnt+ha->nvram_base))); | |
1194 | chksum += (uint8_t)*wptr; | |
1195 | chksum += (uint8_t)(*wptr >> 8); | |
1196 | wptr++; | |
1197 | } | |
1198 | qla2x00_unlock_nvram_access(ha); | |
1199 | ||
1200 | DEBUG5(printk("scsi(%ld): Contents of NVRAM\n", ha->host_no)); | |
1201 | DEBUG5(qla2x00_dump_buffer((uint8_t *)ha->request_ring, | |
1202 | sizeof(nvram_t))); | |
1203 | ||
1204 | /* Bad NVRAM data, set defaults parameters. */ | |
1205 | if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' || | |
1206 | nv->id[2] != 'P' || nv->id[3] != ' ' || nv->nvram_version < 1) { | |
1207 | /* Reset NVRAM data. */ | |
1208 | qla_printk(KERN_WARNING, ha, "Inconsistent NVRAM detected: " | |
1209 | "checksum=0x%x id=%c version=0x%x.\n", chksum, nv->id[0], | |
1210 | nv->nvram_version); | |
1211 | qla_printk(KERN_WARNING, ha, "Falling back to functioning (yet " | |
1212 | "invalid -- WWPN) defaults.\n"); | |
1213 | ||
1214 | /* | |
1215 | * Set default initialization control block. | |
1216 | */ | |
1217 | memset(nv, 0, sizeof(nvram_t)); | |
1218 | nv->parameter_block_version = ICB_VERSION; | |
1219 | ||
1220 | if (IS_QLA23XX(ha)) { | |
1221 | nv->firmware_options[0] = BIT_2 | BIT_1; | |
1222 | nv->firmware_options[1] = BIT_7 | BIT_5; | |
1223 | nv->add_firmware_options[0] = BIT_5; | |
1224 | nv->add_firmware_options[1] = BIT_5 | BIT_4; | |
1225 | nv->frame_payload_size = __constant_cpu_to_le16(2048); | |
1226 | nv->special_options[1] = BIT_7; | |
1227 | } else if (IS_QLA2200(ha)) { | |
1228 | nv->firmware_options[0] = BIT_2 | BIT_1; | |
1229 | nv->firmware_options[1] = BIT_7 | BIT_5; | |
1230 | nv->add_firmware_options[0] = BIT_5; | |
1231 | nv->add_firmware_options[1] = BIT_5 | BIT_4; | |
1232 | nv->frame_payload_size = __constant_cpu_to_le16(1024); | |
1233 | } else if (IS_QLA2100(ha)) { | |
1234 | nv->firmware_options[0] = BIT_3 | BIT_1; | |
1235 | nv->firmware_options[1] = BIT_5; | |
1236 | nv->frame_payload_size = __constant_cpu_to_le16(1024); | |
1237 | } | |
1238 | ||
1239 | nv->max_iocb_allocation = __constant_cpu_to_le16(256); | |
1240 | nv->execution_throttle = __constant_cpu_to_le16(16); | |
1241 | nv->retry_count = 8; | |
1242 | nv->retry_delay = 1; | |
1243 | ||
1244 | nv->port_name[0] = 33; | |
1245 | nv->port_name[3] = 224; | |
1246 | nv->port_name[4] = 139; | |
1247 | ||
1248 | nv->login_timeout = 4; | |
1249 | ||
1250 | /* | |
1251 | * Set default host adapter parameters | |
1252 | */ | |
1253 | nv->host_p[1] = BIT_2; | |
1254 | nv->reset_delay = 5; | |
1255 | nv->port_down_retry_count = 8; | |
1256 | nv->max_luns_per_target = __constant_cpu_to_le16(8); | |
1257 | nv->link_down_timeout = 60; | |
1258 | ||
1259 | rval = 1; | |
1260 | } | |
1261 | ||
1262 | #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2) | |
1263 | /* | |
1264 | * The SN2 does not provide BIOS emulation which means you can't change | |
1265 | * potentially bogus BIOS settings. Force the use of default settings | |
1266 | * for link rate and frame size. Hope that the rest of the settings | |
1267 | * are valid. | |
1268 | */ | |
1269 | if (ia64_platform_is("sn2")) { | |
1270 | nv->frame_payload_size = __constant_cpu_to_le16(2048); | |
1271 | if (IS_QLA23XX(ha)) | |
1272 | nv->special_options[1] = BIT_7; | |
1273 | } | |
1274 | #endif | |
1275 | ||
1276 | /* Reset Initialization control block */ | |
1277 | memset(icb, 0, sizeof(init_cb_t)); | |
1278 | ||
1279 | /* | |
1280 | * Setup driver NVRAM options. | |
1281 | */ | |
1282 | nv->firmware_options[0] |= (BIT_6 | BIT_1); | |
1283 | nv->firmware_options[0] &= ~(BIT_5 | BIT_4); | |
1284 | nv->firmware_options[1] |= (BIT_5 | BIT_0); | |
1285 | nv->firmware_options[1] &= ~BIT_4; | |
1286 | ||
1287 | if (IS_QLA23XX(ha)) { | |
1288 | nv->firmware_options[0] |= BIT_2; | |
1289 | nv->firmware_options[0] &= ~BIT_3; | |
1290 | ||
1291 | if (IS_QLA2300(ha)) { | |
1292 | if (ha->fb_rev == FPM_2310) { | |
1293 | strcpy(ha->model_number, "QLA2310"); | |
1294 | } else { | |
1295 | strcpy(ha->model_number, "QLA2300"); | |
1296 | } | |
1297 | } else { | |
1298 | if (rval == 0 && | |
1299 | memcmp(nv->model_number, BINZERO, | |
1300 | sizeof(nv->model_number)) != 0) { | |
1301 | char *st, *en; | |
1302 | ||
1303 | strncpy(ha->model_number, nv->model_number, | |
1304 | sizeof(nv->model_number)); | |
1305 | st = en = ha->model_number; | |
1306 | en += sizeof(nv->model_number) - 1; | |
1307 | while (en > st) { | |
1308 | if (*en != 0x20 && *en != 0x00) | |
1309 | break; | |
1310 | *en-- = '\0'; | |
1311 | } | |
1312 | } else { | |
1313 | uint16_t index; | |
1314 | ||
1315 | index = (ha->pdev->subsystem_device & 0xff); | |
1316 | if (index < QLA_MODEL_NAMES) { | |
1317 | strcpy(ha->model_number, | |
1318 | qla2x00_model_name[index]); | |
1319 | ha->model_desc = | |
1320 | qla2x00_model_desc[index]; | |
1321 | } else { | |
1322 | strcpy(ha->model_number, "QLA23xx"); | |
1323 | } | |
1324 | } | |
1325 | } | |
1326 | } else if (IS_QLA2200(ha)) { | |
1327 | nv->firmware_options[0] |= BIT_2; | |
1328 | /* | |
1329 | * 'Point-to-point preferred, else loop' is not a safe | |
1330 | * connection mode setting. | |
1331 | */ | |
1332 | if ((nv->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) == | |
1333 | (BIT_5 | BIT_4)) { | |
1334 | /* Force 'loop preferred, else point-to-point'. */ | |
1335 | nv->add_firmware_options[0] &= ~(BIT_6 | BIT_5 | BIT_4); | |
1336 | nv->add_firmware_options[0] |= BIT_5; | |
1337 | } | |
1338 | strcpy(ha->model_number, "QLA22xx"); | |
1339 | } else /*if (IS_QLA2100(ha))*/ { | |
1340 | strcpy(ha->model_number, "QLA2100"); | |
1341 | } | |
1342 | ||
1343 | /* | |
1344 | * Copy over NVRAM RISC parameter block to initialization control block. | |
1345 | */ | |
1346 | dptr1 = (uint8_t *)icb; | |
1347 | dptr2 = (uint8_t *)&nv->parameter_block_version; | |
1348 | cnt = (uint8_t *)&icb->request_q_outpointer - (uint8_t *)&icb->version; | |
1349 | while (cnt--) | |
1350 | *dptr1++ = *dptr2++; | |
1351 | ||
1352 | /* Copy 2nd half. */ | |
1353 | dptr1 = (uint8_t *)icb->add_firmware_options; | |
1354 | cnt = (uint8_t *)icb->reserved_3 - (uint8_t *)icb->add_firmware_options; | |
1355 | while (cnt--) | |
1356 | *dptr1++ = *dptr2++; | |
1357 | ||
1358 | /* Prepare nodename */ | |
1359 | if ((icb->firmware_options[1] & BIT_6) == 0) { | |
1360 | /* | |
1361 | * Firmware will apply the following mask if the nodename was | |
1362 | * not provided. | |
1363 | */ | |
1364 | memcpy(icb->node_name, icb->port_name, WWN_SIZE); | |
1365 | icb->node_name[0] &= 0xF0; | |
1366 | } | |
1367 | ||
1368 | /* | |
1369 | * Set host adapter parameters. | |
1370 | */ | |
1371 | ha->nvram_version = nv->nvram_version; | |
1372 | ||
1373 | ha->flags.disable_risc_code_load = ((nv->host_p[0] & BIT_4) ? 1 : 0); | |
1374 | /* Always load RISC code on non ISP2[12]00 chips. */ | |
1375 | if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) | |
1376 | ha->flags.disable_risc_code_load = 0; | |
1377 | ha->flags.enable_lip_reset = ((nv->host_p[1] & BIT_1) ? 1 : 0); | |
1378 | ha->flags.enable_lip_full_login = ((nv->host_p[1] & BIT_2) ? 1 : 0); | |
1379 | ha->flags.enable_target_reset = ((nv->host_p[1] & BIT_3) ? 1 : 0); | |
1380 | ha->flags.enable_led_scheme = ((nv->efi_parameters & BIT_3) ? 1 : 0); | |
1381 | ||
1382 | ha->operating_mode = | |
1383 | (icb->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) >> 4; | |
1384 | ||
1385 | memcpy(ha->fw_seriallink_options, nv->seriallink_options, | |
1386 | sizeof(ha->fw_seriallink_options)); | |
1387 | ||
1388 | /* save HBA serial number */ | |
1389 | ha->serial0 = icb->port_name[5]; | |
1390 | ha->serial1 = icb->port_name[6]; | |
1391 | ha->serial2 = icb->port_name[7]; | |
1392 | memcpy(ha->node_name, icb->node_name, WWN_SIZE); | |
1393 | ||
1394 | icb->execution_throttle = __constant_cpu_to_le16(0xFFFF); | |
1395 | ||
1396 | ha->retry_count = nv->retry_count; | |
1397 | ||
1398 | /* Set minimum login_timeout to 4 seconds. */ | |
1399 | if (nv->login_timeout < ql2xlogintimeout) | |
1400 | nv->login_timeout = ql2xlogintimeout; | |
1401 | if (nv->login_timeout < 4) | |
1402 | nv->login_timeout = 4; | |
1403 | ha->login_timeout = nv->login_timeout; | |
1404 | icb->login_timeout = nv->login_timeout; | |
1405 | ||
1406 | /* Set minimum RATOV to 200 tenths of a second. */ | |
1407 | ha->r_a_tov = 200; | |
1408 | ||
1da177e4 LT |
1409 | ha->loop_reset_delay = nv->reset_delay; |
1410 | ||
1da177e4 LT |
1411 | /* Link Down Timeout = 0: |
1412 | * | |
1413 | * When Port Down timer expires we will start returning | |
1414 | * I/O's to OS with "DID_NO_CONNECT". | |
1415 | * | |
1416 | * Link Down Timeout != 0: | |
1417 | * | |
1418 | * The driver waits for the link to come up after link down | |
1419 | * before returning I/Os to OS with "DID_NO_CONNECT". | |
1420 | */ | |
1421 | if (nv->link_down_timeout == 0) { | |
1422 | ha->loop_down_abort_time = | |
354d6b21 | 1423 | (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT); |
1da177e4 LT |
1424 | } else { |
1425 | ha->link_down_timeout = nv->link_down_timeout; | |
1426 | ha->loop_down_abort_time = | |
1427 | (LOOP_DOWN_TIME - ha->link_down_timeout); | |
1428 | } | |
1429 | ||
1da177e4 LT |
1430 | /* |
1431 | * Need enough time to try and get the port back. | |
1432 | */ | |
1433 | ha->port_down_retry_count = nv->port_down_retry_count; | |
1434 | if (qlport_down_retry) | |
1435 | ha->port_down_retry_count = qlport_down_retry; | |
1436 | /* Set login_retry_count */ | |
1437 | ha->login_retry_count = nv->retry_count; | |
1438 | if (ha->port_down_retry_count == nv->port_down_retry_count && | |
1439 | ha->port_down_retry_count > 3) | |
1440 | ha->login_retry_count = ha->port_down_retry_count; | |
1441 | else if (ha->port_down_retry_count > (int)ha->login_retry_count) | |
1442 | ha->login_retry_count = ha->port_down_retry_count; | |
1443 | if (ql2xloginretrycount) | |
1444 | ha->login_retry_count = ql2xloginretrycount; | |
1445 | ||
1da177e4 LT |
1446 | icb->lun_enables = __constant_cpu_to_le16(0); |
1447 | icb->command_resource_count = 0; | |
1448 | icb->immediate_notify_resource_count = 0; | |
1449 | icb->timeout = __constant_cpu_to_le16(0); | |
1450 | ||
1451 | if (IS_QLA2100(ha) || IS_QLA2200(ha)) { | |
1452 | /* Enable RIO */ | |
1453 | icb->firmware_options[0] &= ~BIT_3; | |
1454 | icb->add_firmware_options[0] &= | |
1455 | ~(BIT_3 | BIT_2 | BIT_1 | BIT_0); | |
1456 | icb->add_firmware_options[0] |= BIT_2; | |
1457 | icb->response_accumulation_timer = 3; | |
1458 | icb->interrupt_delay_timer = 5; | |
1459 | ||
1460 | ha->flags.process_response_queue = 1; | |
1461 | } else { | |
1462 | /* Enable ZIO -- Support mode 5 only. */ | |
1463 | timer_mode = icb->add_firmware_options[0] & | |
1464 | (BIT_3 | BIT_2 | BIT_1 | BIT_0); | |
1465 | icb->add_firmware_options[0] &= | |
1466 | ~(BIT_3 | BIT_2 | BIT_1 | BIT_0); | |
1467 | if (ql2xenablezio) | |
1468 | timer_mode = BIT_2 | BIT_0; | |
1469 | if (timer_mode == (BIT_2 | BIT_0)) { | |
1470 | DEBUG2(printk("scsi(%ld): ZIO enabled; timer delay " | |
1471 | "(%d).\n", ha->host_no, ql2xintrdelaytimer)); | |
1472 | qla_printk(KERN_INFO, ha, | |
1473 | "ZIO enabled; timer delay (%d).\n", | |
1474 | ql2xintrdelaytimer); | |
1475 | ||
1476 | icb->add_firmware_options[0] |= timer_mode; | |
1477 | icb->interrupt_delay_timer = ql2xintrdelaytimer; | |
1478 | ha->flags.process_response_queue = 1; | |
1479 | } | |
1480 | } | |
1481 | ||
1482 | if (rval) { | |
1483 | DEBUG2_3(printk(KERN_WARNING | |
1484 | "scsi(%ld): NVRAM configuration failed!\n", ha->host_no)); | |
1485 | } | |
1486 | return (rval); | |
1487 | } | |
1488 | ||
1da177e4 LT |
1489 | /** |
1490 | * qla2x00_alloc_fcport() - Allocate a generic fcport. | |
1491 | * @ha: HA context | |
1492 | * @flags: allocation flags | |
1493 | * | |
1494 | * Returns a pointer to the allocated fcport, or NULL, if none available. | |
1495 | */ | |
1496 | fc_port_t * | |
1497 | qla2x00_alloc_fcport(scsi_qla_host_t *ha, int flags) | |
1498 | { | |
1499 | fc_port_t *fcport; | |
1500 | ||
1501 | fcport = kmalloc(sizeof(fc_port_t), flags); | |
1502 | if (fcport == NULL) | |
1503 | return (fcport); | |
1504 | ||
1505 | /* Setup fcport template structure. */ | |
1506 | memset(fcport, 0, sizeof (fc_port_t)); | |
1507 | fcport->ha = ha; | |
1508 | fcport->port_type = FCT_UNKNOWN; | |
1509 | fcport->loop_id = FC_NO_LOOP_ID; | |
1510 | fcport->iodesc_idx_sent = IODESC_INVALID_INDEX; | |
1511 | atomic_set(&fcport->state, FCS_UNCONFIGURED); | |
1512 | fcport->flags = FCF_RLC_SUPPORT; | |
1da177e4 LT |
1513 | |
1514 | return (fcport); | |
1515 | } | |
1516 | ||
1517 | /* | |
1518 | * qla2x00_configure_loop | |
1519 | * Updates Fibre Channel Device Database with what is actually on loop. | |
1520 | * | |
1521 | * Input: | |
1522 | * ha = adapter block pointer. | |
1523 | * | |
1524 | * Returns: | |
1525 | * 0 = success. | |
1526 | * 1 = error. | |
1527 | * 2 = database was full and device was not configured. | |
1528 | */ | |
1529 | static int | |
1530 | qla2x00_configure_loop(scsi_qla_host_t *ha) | |
1531 | { | |
1532 | int rval; | |
1533 | unsigned long flags, save_flags; | |
1534 | ||
1535 | rval = QLA_SUCCESS; | |
1536 | ||
1537 | /* Get Initiator ID */ | |
1538 | if (test_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags)) { | |
1539 | rval = qla2x00_configure_hba(ha); | |
1540 | if (rval != QLA_SUCCESS) { | |
1541 | DEBUG(printk("scsi(%ld): Unable to configure HBA.\n", | |
1542 | ha->host_no)); | |
1543 | return (rval); | |
1544 | } | |
1545 | } | |
1546 | ||
1547 | save_flags = flags = ha->dpc_flags; | |
1548 | DEBUG(printk("scsi(%ld): Configure loop -- dpc flags =0x%lx\n", | |
1549 | ha->host_no, flags)); | |
1550 | ||
1551 | /* | |
1552 | * If we have both an RSCN and PORT UPDATE pending then handle them | |
1553 | * both at the same time. | |
1554 | */ | |
1555 | clear_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags); | |
1556 | clear_bit(RSCN_UPDATE, &ha->dpc_flags); | |
1da177e4 LT |
1557 | |
1558 | /* Determine what we need to do */ | |
1559 | if (ha->current_topology == ISP_CFG_FL && | |
1560 | (test_bit(LOCAL_LOOP_UPDATE, &flags))) { | |
1561 | ||
1562 | ha->flags.rscn_queue_overflow = 1; | |
1563 | set_bit(RSCN_UPDATE, &flags); | |
1564 | ||
1565 | } else if (ha->current_topology == ISP_CFG_F && | |
1566 | (test_bit(LOCAL_LOOP_UPDATE, &flags))) { | |
1567 | ||
1568 | ha->flags.rscn_queue_overflow = 1; | |
1569 | set_bit(RSCN_UPDATE, &flags); | |
1570 | clear_bit(LOCAL_LOOP_UPDATE, &flags); | |
1571 | ||
1572 | } else if (!ha->flags.online || | |
1573 | (test_bit(ABORT_ISP_ACTIVE, &flags))) { | |
1574 | ||
1575 | ha->flags.rscn_queue_overflow = 1; | |
1576 | set_bit(RSCN_UPDATE, &flags); | |
1577 | set_bit(LOCAL_LOOP_UPDATE, &flags); | |
1578 | } | |
1579 | ||
1580 | if (test_bit(LOCAL_LOOP_UPDATE, &flags)) { | |
1581 | if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) { | |
1582 | rval = QLA_FUNCTION_FAILED; | |
1583 | } else { | |
1584 | rval = qla2x00_configure_local_loop(ha); | |
1585 | } | |
1586 | } | |
1587 | ||
1588 | if (rval == QLA_SUCCESS && test_bit(RSCN_UPDATE, &flags)) { | |
1589 | if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) { | |
1590 | rval = QLA_FUNCTION_FAILED; | |
1591 | } else { | |
1592 | rval = qla2x00_configure_fabric(ha); | |
1593 | } | |
1594 | } | |
1595 | ||
1596 | if (rval == QLA_SUCCESS) { | |
1597 | if (atomic_read(&ha->loop_down_timer) || | |
1598 | test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) { | |
1599 | rval = QLA_FUNCTION_FAILED; | |
1600 | } else { | |
1da177e4 LT |
1601 | atomic_set(&ha->loop_state, LOOP_READY); |
1602 | ||
1603 | DEBUG(printk("scsi(%ld): LOOP READY\n", ha->host_no)); | |
1604 | } | |
1605 | } | |
1606 | ||
1607 | if (rval) { | |
1608 | DEBUG2_3(printk("%s(%ld): *** FAILED ***\n", | |
1609 | __func__, ha->host_no)); | |
1610 | } else { | |
1611 | DEBUG3(printk("%s: exiting normally\n", __func__)); | |
1612 | } | |
1613 | ||
1614 | /* Restore state if a resync event occured during processing */ | |
1615 | if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) { | |
1616 | if (test_bit(LOCAL_LOOP_UPDATE, &save_flags)) | |
1617 | set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags); | |
1618 | if (test_bit(RSCN_UPDATE, &save_flags)) | |
1619 | set_bit(RSCN_UPDATE, &ha->dpc_flags); | |
1620 | } | |
1621 | ||
1622 | return (rval); | |
1623 | } | |
1624 | ||
1625 | ||
1626 | ||
1627 | /* | |
1628 | * qla2x00_configure_local_loop | |
1629 | * Updates Fibre Channel Device Database with local loop devices. | |
1630 | * | |
1631 | * Input: | |
1632 | * ha = adapter block pointer. | |
1633 | * | |
1634 | * Returns: | |
1635 | * 0 = success. | |
1636 | */ | |
1637 | static int | |
1638 | qla2x00_configure_local_loop(scsi_qla_host_t *ha) | |
1639 | { | |
1640 | int rval, rval2; | |
1641 | int found_devs; | |
1642 | int found; | |
1643 | fc_port_t *fcport, *new_fcport; | |
1644 | ||
1645 | uint16_t index; | |
1646 | uint16_t entries; | |
1647 | char *id_iter; | |
1648 | uint16_t loop_id; | |
1649 | uint8_t domain, area, al_pa; | |
1650 | ||
1651 | found_devs = 0; | |
1652 | new_fcport = NULL; | |
1653 | entries = MAX_FIBRE_DEVICES; | |
1654 | ||
1655 | DEBUG3(printk("scsi(%ld): Getting FCAL position map\n", ha->host_no)); | |
1656 | DEBUG3(qla2x00_get_fcal_position_map(ha, NULL)); | |
1657 | ||
1658 | /* Get list of logged in devices. */ | |
1659 | memset(ha->gid_list, 0, GID_LIST_SIZE); | |
1660 | rval = qla2x00_get_id_list(ha, ha->gid_list, ha->gid_list_dma, | |
1661 | &entries); | |
1662 | if (rval != QLA_SUCCESS) | |
1663 | goto cleanup_allocation; | |
1664 | ||
1665 | DEBUG3(printk("scsi(%ld): Entries in ID list (%d)\n", | |
1666 | ha->host_no, entries)); | |
1667 | DEBUG3(qla2x00_dump_buffer((uint8_t *)ha->gid_list, | |
1668 | entries * sizeof(struct gid_list_info))); | |
1669 | ||
1670 | /* Allocate temporary fcport for any new fcports discovered. */ | |
1671 | new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL); | |
1672 | if (new_fcport == NULL) { | |
1673 | rval = QLA_MEMORY_ALLOC_FAILED; | |
1674 | goto cleanup_allocation; | |
1675 | } | |
1676 | new_fcport->flags &= ~FCF_FABRIC_DEVICE; | |
1677 | ||
1678 | /* | |
1679 | * Mark local devices that were present with FCF_DEVICE_LOST for now. | |
1680 | */ | |
1681 | list_for_each_entry(fcport, &ha->fcports, list) { | |
1682 | if (atomic_read(&fcport->state) == FCS_ONLINE && | |
1683 | fcport->port_type != FCT_BROADCAST && | |
1684 | (fcport->flags & FCF_FABRIC_DEVICE) == 0) { | |
1685 | ||
1686 | DEBUG(printk("scsi(%ld): Marking port lost, " | |
1687 | "loop_id=0x%04x\n", | |
1688 | ha->host_no, fcport->loop_id)); | |
1689 | ||
1690 | atomic_set(&fcport->state, FCS_DEVICE_LOST); | |
1691 | fcport->flags &= ~FCF_FARP_DONE; | |
1692 | } | |
1693 | } | |
1694 | ||
1695 | /* Add devices to port list. */ | |
1696 | id_iter = (char *)ha->gid_list; | |
1697 | for (index = 0; index < entries; index++) { | |
1698 | domain = ((struct gid_list_info *)id_iter)->domain; | |
1699 | area = ((struct gid_list_info *)id_iter)->area; | |
1700 | al_pa = ((struct gid_list_info *)id_iter)->al_pa; | |
1701 | if (IS_QLA2100(ha) || IS_QLA2200(ha)) { | |
1702 | loop_id = (uint16_t) | |
1703 | ((struct gid_list_info *)id_iter)->loop_id_2100; | |
1704 | id_iter += 4; | |
1705 | } else { | |
1706 | loop_id = le16_to_cpu( | |
1707 | ((struct gid_list_info *)id_iter)->loop_id); | |
1708 | id_iter += 6; | |
1709 | } | |
1710 | ||
1711 | /* Bypass reserved domain fields. */ | |
1712 | if ((domain & 0xf0) == 0xf0) | |
1713 | continue; | |
1714 | ||
1715 | /* Bypass if not same domain and area of adapter. */ | |
1716 | if (area != ha->d_id.b.area || domain != ha->d_id.b.domain) | |
1717 | continue; | |
1718 | ||
1719 | /* Bypass invalid local loop ID. */ | |
1720 | if (loop_id > LAST_LOCAL_LOOP_ID) | |
1721 | continue; | |
1722 | ||
1723 | /* Fill in member data. */ | |
1724 | new_fcport->d_id.b.domain = domain; | |
1725 | new_fcport->d_id.b.area = area; | |
1726 | new_fcport->d_id.b.al_pa = al_pa; | |
1727 | new_fcport->loop_id = loop_id; | |
1728 | rval2 = qla2x00_get_port_database(ha, new_fcport, 0); | |
1729 | if (rval2 != QLA_SUCCESS) { | |
1730 | DEBUG2(printk("scsi(%ld): Failed to retrieve fcport " | |
1731 | "information -- get_port_database=%x, " | |
1732 | "loop_id=0x%04x\n", | |
1733 | ha->host_no, rval2, new_fcport->loop_id)); | |
1734 | continue; | |
1735 | } | |
1736 | ||
1737 | /* Check for matching device in port list. */ | |
1738 | found = 0; | |
1739 | fcport = NULL; | |
1740 | list_for_each_entry(fcport, &ha->fcports, list) { | |
1741 | if (memcmp(new_fcport->port_name, fcport->port_name, | |
1742 | WWN_SIZE)) | |
1743 | continue; | |
1744 | ||
1745 | fcport->flags &= ~(FCF_FABRIC_DEVICE | | |
1746 | FCF_PERSISTENT_BOUND); | |
1747 | fcport->loop_id = new_fcport->loop_id; | |
1748 | fcport->port_type = new_fcport->port_type; | |
1749 | fcport->d_id.b24 = new_fcport->d_id.b24; | |
1750 | memcpy(fcport->node_name, new_fcport->node_name, | |
1751 | WWN_SIZE); | |
1752 | ||
1753 | found++; | |
1754 | break; | |
1755 | } | |
1756 | ||
1757 | if (!found) { | |
1758 | /* New device, add to fcports list. */ | |
1759 | new_fcport->flags &= ~FCF_PERSISTENT_BOUND; | |
1760 | list_add_tail(&new_fcport->list, &ha->fcports); | |
1761 | ||
1762 | /* Allocate a new replacement fcport. */ | |
1763 | fcport = new_fcport; | |
1764 | new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL); | |
1765 | if (new_fcport == NULL) { | |
1766 | rval = QLA_MEMORY_ALLOC_FAILED; | |
1767 | goto cleanup_allocation; | |
1768 | } | |
1769 | new_fcport->flags &= ~FCF_FABRIC_DEVICE; | |
1770 | } | |
1771 | ||
1772 | qla2x00_update_fcport(ha, fcport); | |
1773 | ||
1774 | found_devs++; | |
1775 | } | |
1776 | ||
1777 | cleanup_allocation: | |
1778 | if (new_fcport) | |
1779 | kfree(new_fcport); | |
1780 | ||
1781 | if (rval != QLA_SUCCESS) { | |
1782 | DEBUG2(printk("scsi(%ld): Configure local loop error exit: " | |
1783 | "rval=%x\n", ha->host_no, rval)); | |
1784 | } | |
1785 | ||
1786 | if (found_devs) { | |
1787 | ha->device_flags |= DFLG_LOCAL_DEVICES; | |
1788 | ha->device_flags &= ~DFLG_RETRY_LOCAL_DEVICES; | |
1789 | } | |
1790 | ||
1791 | return (rval); | |
1792 | } | |
1793 | ||
1794 | static void | |
1795 | qla2x00_probe_for_all_luns(scsi_qla_host_t *ha) | |
1796 | { | |
1797 | fc_port_t *fcport; | |
1798 | ||
1799 | qla2x00_mark_all_devices_lost(ha); | |
1800 | list_for_each_entry(fcport, &ha->fcports, list) { | |
1801 | if (fcport->port_type != FCT_TARGET) | |
1802 | continue; | |
1803 | ||
1804 | qla2x00_update_fcport(ha, fcport); | |
1805 | } | |
1806 | } | |
1807 | ||
1808 | /* | |
1809 | * qla2x00_update_fcport | |
1810 | * Updates device on list. | |
1811 | * | |
1812 | * Input: | |
1813 | * ha = adapter block pointer. | |
1814 | * fcport = port structure pointer. | |
1815 | * | |
1816 | * Return: | |
1817 | * 0 - Success | |
1818 | * BIT_0 - error | |
1819 | * | |
1820 | * Context: | |
1821 | * Kernel context. | |
1822 | */ | |
1823 | static void | |
1824 | qla2x00_update_fcport(scsi_qla_host_t *ha, fc_port_t *fcport) | |
1825 | { | |
1826 | uint16_t index; | |
1827 | unsigned long flags; | |
1828 | srb_t *sp; | |
1829 | ||
1830 | fcport->ha = ha; | |
1831 | fcport->login_retry = 0; | |
1832 | fcport->port_login_retry_count = ha->port_down_retry_count * | |
1833 | PORT_RETRY_TIME; | |
1834 | atomic_set(&fcport->port_down_timer, ha->port_down_retry_count * | |
1835 | PORT_RETRY_TIME); | |
1836 | fcport->flags &= ~FCF_LOGIN_NEEDED; | |
1837 | ||
1838 | /* | |
1839 | * Check for outstanding cmd on tape Bypass LUN discovery if active | |
1840 | * command on tape. | |
1841 | */ | |
1842 | if (fcport->flags & FCF_TAPE_PRESENT) { | |
1843 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
1844 | for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) { | |
bdf79621 AV |
1845 | fc_port_t *sfcp; |
1846 | ||
1da177e4 | 1847 | if ((sp = ha->outstanding_cmds[index]) != 0) { |
bdf79621 AV |
1848 | sfcp = sp->fcport; |
1849 | if (sfcp == fcport) { | |
1da177e4 LT |
1850 | atomic_set(&fcport->state, FCS_ONLINE); |
1851 | spin_unlock_irqrestore( | |
1852 | &ha->hardware_lock, flags); | |
1853 | return; | |
1854 | } | |
1855 | } | |
1856 | } | |
1857 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
1858 | } | |
1859 | ||
1da177e4 | 1860 | if (fcport->port_type == FCT_INITIATOR || |
bdf79621 | 1861 | fcport->port_type == FCT_BROADCAST) |
1da177e4 | 1862 | fcport->device_type = TYPE_PROCESSOR; |
bdf79621 | 1863 | |
1da177e4 | 1864 | atomic_set(&fcport->state, FCS_ONLINE); |
bdf79621 | 1865 | |
8482e118 AV |
1866 | if (ha->flags.init_done) |
1867 | qla2x00_reg_remote_port(ha, fcport); | |
1da177e4 LT |
1868 | } |
1869 | ||
8482e118 AV |
1870 | void |
1871 | qla2x00_reg_remote_port(scsi_qla_host_t *ha, fc_port_t *fcport) | |
1872 | { | |
1873 | struct fc_rport_identifiers rport_ids; | |
bdf79621 | 1874 | struct fc_rport *rport; |
8482e118 AV |
1875 | |
1876 | if (fcport->rport) { | |
1877 | fc_remote_port_unblock(fcport->rport); | |
1878 | return; | |
1879 | } | |
1880 | ||
1881 | rport_ids.node_name = be64_to_cpu(*(uint64_t *)fcport->node_name); | |
1882 | rport_ids.port_name = be64_to_cpu(*(uint64_t *)fcport->port_name); | |
1883 | rport_ids.port_id = fcport->d_id.b.domain << 16 | | |
1884 | fcport->d_id.b.area << 8 | fcport->d_id.b.al_pa; | |
1885 | rport_ids.roles = FC_RPORT_ROLE_UNKNOWN; | |
1886 | if (fcport->port_type == FCT_INITIATOR) | |
1887 | rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR; | |
1888 | if (fcport->port_type == FCT_TARGET) | |
1889 | rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET; | |
1890 | ||
bdf79621 AV |
1891 | fcport->rport = rport = fc_remote_port_add(ha->host, 0, &rport_ids); |
1892 | if (!rport) | |
8482e118 AV |
1893 | qla_printk(KERN_WARNING, ha, |
1894 | "Unable to allocate fc remote port!\n"); | |
1da177e4 | 1895 | |
bdf79621 AV |
1896 | if (rport->scsi_target_id != -1 && rport->scsi_target_id < MAX_TARGETS) |
1897 | fcport->os_target_id = rport->scsi_target_id; | |
1da177e4 | 1898 | |
bdf79621 | 1899 | rport->dd_data = fcport; |
1da177e4 LT |
1900 | } |
1901 | ||
1da177e4 LT |
1902 | /* |
1903 | * qla2x00_configure_fabric | |
1904 | * Setup SNS devices with loop ID's. | |
1905 | * | |
1906 | * Input: | |
1907 | * ha = adapter block pointer. | |
1908 | * | |
1909 | * Returns: | |
1910 | * 0 = success. | |
1911 | * BIT_0 = error | |
1912 | */ | |
1913 | static int | |
1914 | qla2x00_configure_fabric(scsi_qla_host_t *ha) | |
1915 | { | |
1916 | int rval, rval2; | |
1917 | fc_port_t *fcport, *fcptemp; | |
1918 | uint16_t next_loopid; | |
1919 | uint16_t mb[MAILBOX_REGISTER_COUNT]; | |
1920 | LIST_HEAD(new_fcports); | |
1921 | ||
1922 | /* If FL port exists, then SNS is present */ | |
1923 | rval = qla2x00_get_port_name(ha, SNS_FL_PORT, NULL, 0); | |
1924 | if (rval != QLA_SUCCESS) { | |
1925 | DEBUG2(printk("scsi(%ld): MBC_GET_PORT_NAME Failed, No FL " | |
1926 | "Port\n", ha->host_no)); | |
1927 | ||
1928 | ha->device_flags &= ~SWITCH_FOUND; | |
1929 | return (QLA_SUCCESS); | |
1930 | } | |
1931 | ||
1932 | /* Mark devices that need re-synchronization. */ | |
1933 | rval2 = qla2x00_device_resync(ha); | |
1934 | if (rval2 == QLA_RSCNS_HANDLED) { | |
1935 | /* No point doing the scan, just continue. */ | |
1936 | return (QLA_SUCCESS); | |
1937 | } | |
1938 | do { | |
1939 | /* Ensure we are logged into the SNS. */ | |
1940 | qla2x00_login_fabric(ha, SIMPLE_NAME_SERVER, 0xff, 0xff, 0xfc, | |
1941 | mb, BIT_1 | BIT_0); | |
1942 | if (mb[0] != MBS_COMMAND_COMPLETE) { | |
1943 | DEBUG2(qla_printk(KERN_INFO, ha, | |
1944 | "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x " | |
1945 | "mb[2]=%x mb[6]=%x mb[7]=%x\n", SIMPLE_NAME_SERVER, | |
1946 | mb[0], mb[1], mb[2], mb[6], mb[7])); | |
1947 | return (QLA_SUCCESS); | |
1948 | } | |
1949 | ||
1950 | if (test_and_clear_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags)) { | |
1951 | if (qla2x00_rft_id(ha)) { | |
1952 | /* EMPTY */ | |
1953 | DEBUG2(printk("scsi(%ld): Register FC-4 " | |
1954 | "TYPE failed.\n", ha->host_no)); | |
1955 | } | |
1956 | if (qla2x00_rff_id(ha)) { | |
1957 | /* EMPTY */ | |
1958 | DEBUG2(printk("scsi(%ld): Register FC-4 " | |
1959 | "Features failed.\n", ha->host_no)); | |
1960 | } | |
1961 | if (qla2x00_rnn_id(ha)) { | |
1962 | /* EMPTY */ | |
1963 | DEBUG2(printk("scsi(%ld): Register Node Name " | |
1964 | "failed.\n", ha->host_no)); | |
1965 | } else if (qla2x00_rsnn_nn(ha)) { | |
1966 | /* EMPTY */ | |
1967 | DEBUG2(printk("scsi(%ld): Register Symbolic " | |
1968 | "Node Name failed.\n", ha->host_no)); | |
1969 | } | |
1970 | } | |
1971 | ||
1972 | rval = qla2x00_find_all_fabric_devs(ha, &new_fcports); | |
1973 | if (rval != QLA_SUCCESS) | |
1974 | break; | |
1975 | ||
1976 | /* | |
1977 | * Logout all previous fabric devices marked lost, except | |
1978 | * tape devices. | |
1979 | */ | |
1980 | list_for_each_entry(fcport, &ha->fcports, list) { | |
1981 | if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) | |
1982 | break; | |
1983 | ||
1984 | if ((fcport->flags & FCF_FABRIC_DEVICE) == 0) | |
1985 | continue; | |
1986 | ||
1987 | if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) { | |
1988 | qla2x00_mark_device_lost(ha, fcport, | |
1989 | ql2xplogiabsentdevice); | |
1990 | if (fcport->loop_id != FC_NO_LOOP_ID && | |
1991 | (fcport->flags & FCF_TAPE_PRESENT) == 0 && | |
1992 | fcport->port_type != FCT_INITIATOR && | |
1993 | fcport->port_type != FCT_BROADCAST) { | |
1994 | ||
1995 | qla2x00_fabric_logout(ha, | |
1996 | fcport->loop_id); | |
1997 | fcport->loop_id = FC_NO_LOOP_ID; | |
1998 | } | |
1999 | } | |
2000 | } | |
2001 | ||
2002 | /* Starting free loop ID. */ | |
2003 | next_loopid = ha->min_external_loopid; | |
2004 | ||
2005 | /* | |
2006 | * Scan through our port list and login entries that need to be | |
2007 | * logged in. | |
2008 | */ | |
2009 | list_for_each_entry(fcport, &ha->fcports, list) { | |
2010 | if (atomic_read(&ha->loop_down_timer) || | |
2011 | test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) | |
2012 | break; | |
2013 | ||
2014 | if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 || | |
2015 | (fcport->flags & FCF_LOGIN_NEEDED) == 0) | |
2016 | continue; | |
2017 | ||
2018 | if (fcport->loop_id == FC_NO_LOOP_ID) { | |
2019 | fcport->loop_id = next_loopid; | |
2020 | rval = qla2x00_find_new_loop_id(ha, fcport); | |
2021 | if (rval != QLA_SUCCESS) { | |
2022 | /* Ran out of IDs to use */ | |
2023 | break; | |
2024 | } | |
2025 | } | |
2026 | ||
2027 | /* Login and update database */ | |
2028 | qla2x00_fabric_dev_login(ha, fcport, &next_loopid); | |
2029 | } | |
2030 | ||
2031 | /* Exit if out of loop IDs. */ | |
2032 | if (rval != QLA_SUCCESS) { | |
2033 | break; | |
2034 | } | |
2035 | ||
2036 | /* | |
2037 | * Login and add the new devices to our port list. | |
2038 | */ | |
2039 | list_for_each_entry_safe(fcport, fcptemp, &new_fcports, list) { | |
2040 | if (atomic_read(&ha->loop_down_timer) || | |
2041 | test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) | |
2042 | break; | |
2043 | ||
2044 | /* Find a new loop ID to use. */ | |
2045 | fcport->loop_id = next_loopid; | |
2046 | rval = qla2x00_find_new_loop_id(ha, fcport); | |
2047 | if (rval != QLA_SUCCESS) { | |
2048 | /* Ran out of IDs to use */ | |
2049 | break; | |
2050 | } | |
2051 | ||
1da177e4 LT |
2052 | /* Remove device from the new list and add it to DB */ |
2053 | list_del(&fcport->list); | |
2054 | list_add_tail(&fcport->list, &ha->fcports); | |
bdf79621 AV |
2055 | |
2056 | /* Login and update database */ | |
2057 | qla2x00_fabric_dev_login(ha, fcport, &next_loopid); | |
1da177e4 LT |
2058 | } |
2059 | } while (0); | |
2060 | ||
2061 | /* Free all new device structures not processed. */ | |
2062 | list_for_each_entry_safe(fcport, fcptemp, &new_fcports, list) { | |
2063 | list_del(&fcport->list); | |
2064 | kfree(fcport); | |
2065 | } | |
2066 | ||
2067 | if (rval) { | |
2068 | DEBUG2(printk("scsi(%ld): Configure fabric error exit: " | |
2069 | "rval=%d\n", ha->host_no, rval)); | |
2070 | } | |
2071 | ||
2072 | return (rval); | |
2073 | } | |
2074 | ||
2075 | ||
2076 | /* | |
2077 | * qla2x00_find_all_fabric_devs | |
2078 | * | |
2079 | * Input: | |
2080 | * ha = adapter block pointer. | |
2081 | * dev = database device entry pointer. | |
2082 | * | |
2083 | * Returns: | |
2084 | * 0 = success. | |
2085 | * | |
2086 | * Context: | |
2087 | * Kernel context. | |
2088 | */ | |
2089 | static int | |
2090 | qla2x00_find_all_fabric_devs(scsi_qla_host_t *ha, struct list_head *new_fcports) | |
2091 | { | |
2092 | int rval; | |
2093 | uint16_t loop_id; | |
2094 | fc_port_t *fcport, *new_fcport, *fcptemp; | |
2095 | int found; | |
2096 | ||
2097 | sw_info_t *swl; | |
2098 | int swl_idx; | |
2099 | int first_dev, last_dev; | |
2100 | port_id_t wrap, nxt_d_id; | |
2101 | ||
2102 | rval = QLA_SUCCESS; | |
2103 | ||
2104 | /* Try GID_PT to get device list, else GAN. */ | |
2105 | swl = kmalloc(sizeof(sw_info_t) * MAX_FIBRE_DEVICES, GFP_ATOMIC); | |
2106 | if (swl == NULL) { | |
2107 | /*EMPTY*/ | |
2108 | DEBUG2(printk("scsi(%ld): GID_PT allocations failed, fallback " | |
2109 | "on GA_NXT\n", ha->host_no)); | |
2110 | } else { | |
2111 | memset(swl, 0, sizeof(sw_info_t) * MAX_FIBRE_DEVICES); | |
2112 | if (qla2x00_gid_pt(ha, swl) != QLA_SUCCESS) { | |
2113 | kfree(swl); | |
2114 | swl = NULL; | |
2115 | } else if (qla2x00_gpn_id(ha, swl) != QLA_SUCCESS) { | |
2116 | kfree(swl); | |
2117 | swl = NULL; | |
2118 | } else if (qla2x00_gnn_id(ha, swl) != QLA_SUCCESS) { | |
2119 | kfree(swl); | |
2120 | swl = NULL; | |
2121 | } | |
2122 | } | |
2123 | swl_idx = 0; | |
2124 | ||
2125 | /* Allocate temporary fcport for any new fcports discovered. */ | |
2126 | new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL); | |
2127 | if (new_fcport == NULL) { | |
2128 | if (swl) | |
2129 | kfree(swl); | |
2130 | return (QLA_MEMORY_ALLOC_FAILED); | |
2131 | } | |
2132 | new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED); | |
2133 | ||
2134 | /* Set start port ID scan at adapter ID. */ | |
2135 | first_dev = 1; | |
2136 | last_dev = 0; | |
2137 | ||
2138 | /* Starting free loop ID. */ | |
2139 | loop_id = ha->min_external_loopid; | |
2140 | ||
2141 | for (; loop_id <= ha->last_loop_id; loop_id++) { | |
2142 | if (RESERVED_LOOP_ID(loop_id)) | |
2143 | continue; | |
2144 | ||
2145 | if (atomic_read(&ha->loop_down_timer) || | |
2146 | test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) | |
2147 | break; | |
2148 | ||
2149 | if (swl != NULL) { | |
2150 | if (last_dev) { | |
2151 | wrap.b24 = new_fcport->d_id.b24; | |
2152 | } else { | |
2153 | new_fcport->d_id.b24 = swl[swl_idx].d_id.b24; | |
2154 | memcpy(new_fcport->node_name, | |
2155 | swl[swl_idx].node_name, WWN_SIZE); | |
2156 | memcpy(new_fcport->port_name, | |
2157 | swl[swl_idx].port_name, WWN_SIZE); | |
2158 | ||
2159 | if (swl[swl_idx].d_id.b.rsvd_1 != 0) { | |
2160 | last_dev = 1; | |
2161 | } | |
2162 | swl_idx++; | |
2163 | } | |
2164 | } else { | |
2165 | /* Send GA_NXT to the switch */ | |
2166 | rval = qla2x00_ga_nxt(ha, new_fcport); | |
2167 | if (rval != QLA_SUCCESS) { | |
2168 | qla_printk(KERN_WARNING, ha, | |
2169 | "SNS scan failed -- assuming zero-entry " | |
2170 | "result...\n"); | |
2171 | list_for_each_entry_safe(fcport, fcptemp, | |
2172 | new_fcports, list) { | |
2173 | list_del(&fcport->list); | |
2174 | kfree(fcport); | |
2175 | } | |
2176 | rval = QLA_SUCCESS; | |
2177 | break; | |
2178 | } | |
2179 | } | |
2180 | ||
2181 | /* If wrap on switch device list, exit. */ | |
2182 | if (first_dev) { | |
2183 | wrap.b24 = new_fcport->d_id.b24; | |
2184 | first_dev = 0; | |
2185 | } else if (new_fcport->d_id.b24 == wrap.b24) { | |
2186 | DEBUG2(printk("scsi(%ld): device wrap (%02x%02x%02x)\n", | |
2187 | ha->host_no, new_fcport->d_id.b.domain, | |
2188 | new_fcport->d_id.b.area, new_fcport->d_id.b.al_pa)); | |
2189 | break; | |
2190 | } | |
2191 | ||
2192 | /* Bypass if host adapter. */ | |
2193 | if (new_fcport->d_id.b24 == ha->d_id.b24) | |
2194 | continue; | |
2195 | ||
2196 | /* Bypass reserved domain fields. */ | |
2197 | if ((new_fcport->d_id.b.domain & 0xf0) == 0xf0) | |
2198 | continue; | |
2199 | ||
2200 | /* Locate matching device in database. */ | |
2201 | found = 0; | |
2202 | list_for_each_entry(fcport, &ha->fcports, list) { | |
2203 | if (memcmp(new_fcport->port_name, fcport->port_name, | |
2204 | WWN_SIZE)) | |
2205 | continue; | |
2206 | ||
2207 | found++; | |
2208 | ||
2209 | /* | |
2210 | * If address the same and state FCS_ONLINE, nothing | |
2211 | * changed. | |
2212 | */ | |
2213 | if (fcport->d_id.b24 == new_fcport->d_id.b24 && | |
2214 | atomic_read(&fcport->state) == FCS_ONLINE) { | |
2215 | break; | |
2216 | } | |
2217 | ||
2218 | /* | |
2219 | * If device was not a fabric device before. | |
2220 | */ | |
2221 | if ((fcport->flags & FCF_FABRIC_DEVICE) == 0) { | |
2222 | fcport->d_id.b24 = new_fcport->d_id.b24; | |
2223 | fcport->loop_id = FC_NO_LOOP_ID; | |
2224 | fcport->flags |= (FCF_FABRIC_DEVICE | | |
2225 | FCF_LOGIN_NEEDED); | |
2226 | fcport->flags &= ~FCF_PERSISTENT_BOUND; | |
2227 | break; | |
2228 | } | |
2229 | ||
2230 | /* | |
2231 | * Port ID changed or device was marked to be updated; | |
2232 | * Log it out if still logged in and mark it for | |
2233 | * relogin later. | |
2234 | */ | |
2235 | fcport->d_id.b24 = new_fcport->d_id.b24; | |
2236 | fcport->flags |= FCF_LOGIN_NEEDED; | |
2237 | if (fcport->loop_id != FC_NO_LOOP_ID && | |
2238 | (fcport->flags & FCF_TAPE_PRESENT) == 0 && | |
2239 | fcport->port_type != FCT_INITIATOR && | |
2240 | fcport->port_type != FCT_BROADCAST) { | |
2241 | qla2x00_fabric_logout(ha, fcport->loop_id); | |
2242 | fcport->loop_id = FC_NO_LOOP_ID; | |
2243 | } | |
2244 | ||
2245 | break; | |
2246 | } | |
2247 | ||
2248 | if (found) | |
2249 | continue; | |
2250 | ||
2251 | /* If device was not in our fcports list, then add it. */ | |
2252 | list_add_tail(&new_fcport->list, new_fcports); | |
2253 | ||
2254 | /* Allocate a new replacement fcport. */ | |
2255 | nxt_d_id.b24 = new_fcport->d_id.b24; | |
2256 | new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL); | |
2257 | if (new_fcport == NULL) { | |
2258 | if (swl) | |
2259 | kfree(swl); | |
2260 | return (QLA_MEMORY_ALLOC_FAILED); | |
2261 | } | |
2262 | new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED); | |
2263 | new_fcport->d_id.b24 = nxt_d_id.b24; | |
2264 | } | |
2265 | ||
2266 | if (swl) | |
2267 | kfree(swl); | |
2268 | ||
2269 | if (new_fcport) | |
2270 | kfree(new_fcport); | |
2271 | ||
2272 | if (!list_empty(new_fcports)) | |
2273 | ha->device_flags |= DFLG_FABRIC_DEVICES; | |
2274 | ||
2275 | return (rval); | |
2276 | } | |
2277 | ||
2278 | /* | |
2279 | * qla2x00_find_new_loop_id | |
2280 | * Scan through our port list and find a new usable loop ID. | |
2281 | * | |
2282 | * Input: | |
2283 | * ha: adapter state pointer. | |
2284 | * dev: port structure pointer. | |
2285 | * | |
2286 | * Returns: | |
2287 | * qla2x00 local function return status code. | |
2288 | * | |
2289 | * Context: | |
2290 | * Kernel context. | |
2291 | */ | |
2292 | int | |
2293 | qla2x00_find_new_loop_id(scsi_qla_host_t *ha, fc_port_t *dev) | |
2294 | { | |
2295 | int rval; | |
2296 | int found; | |
2297 | fc_port_t *fcport; | |
2298 | uint16_t first_loop_id; | |
2299 | ||
2300 | rval = QLA_SUCCESS; | |
2301 | ||
2302 | /* Save starting loop ID. */ | |
2303 | first_loop_id = dev->loop_id; | |
2304 | ||
2305 | for (;;) { | |
2306 | /* Skip loop ID if already used by adapter. */ | |
2307 | if (dev->loop_id == ha->loop_id) { | |
2308 | dev->loop_id++; | |
2309 | } | |
2310 | ||
2311 | /* Skip reserved loop IDs. */ | |
2312 | while (RESERVED_LOOP_ID(dev->loop_id)) { | |
2313 | dev->loop_id++; | |
2314 | } | |
2315 | ||
2316 | /* Reset loop ID if passed the end. */ | |
2317 | if (dev->loop_id > ha->last_loop_id) { | |
2318 | /* first loop ID. */ | |
2319 | dev->loop_id = ha->min_external_loopid; | |
2320 | } | |
2321 | ||
2322 | /* Check for loop ID being already in use. */ | |
2323 | found = 0; | |
2324 | fcport = NULL; | |
2325 | list_for_each_entry(fcport, &ha->fcports, list) { | |
2326 | if (fcport->loop_id == dev->loop_id && fcport != dev) { | |
2327 | /* ID possibly in use */ | |
2328 | found++; | |
2329 | break; | |
2330 | } | |
2331 | } | |
2332 | ||
2333 | /* If not in use then it is free to use. */ | |
2334 | if (!found) { | |
2335 | break; | |
2336 | } | |
2337 | ||
2338 | /* ID in use. Try next value. */ | |
2339 | dev->loop_id++; | |
2340 | ||
2341 | /* If wrap around. No free ID to use. */ | |
2342 | if (dev->loop_id == first_loop_id) { | |
2343 | dev->loop_id = FC_NO_LOOP_ID; | |
2344 | rval = QLA_FUNCTION_FAILED; | |
2345 | break; | |
2346 | } | |
2347 | } | |
2348 | ||
2349 | return (rval); | |
2350 | } | |
2351 | ||
2352 | /* | |
2353 | * qla2x00_device_resync | |
2354 | * Marks devices in the database that needs resynchronization. | |
2355 | * | |
2356 | * Input: | |
2357 | * ha = adapter block pointer. | |
2358 | * | |
2359 | * Context: | |
2360 | * Kernel context. | |
2361 | */ | |
2362 | static int | |
2363 | qla2x00_device_resync(scsi_qla_host_t *ha) | |
2364 | { | |
2365 | int rval; | |
2366 | int rval2; | |
2367 | uint32_t mask; | |
2368 | fc_port_t *fcport; | |
2369 | uint32_t rscn_entry; | |
2370 | uint8_t rscn_out_iter; | |
2371 | uint8_t format; | |
2372 | port_id_t d_id; | |
2373 | ||
2374 | rval = QLA_RSCNS_HANDLED; | |
2375 | ||
2376 | while (ha->rscn_out_ptr != ha->rscn_in_ptr || | |
2377 | ha->flags.rscn_queue_overflow) { | |
2378 | ||
2379 | rscn_entry = ha->rscn_queue[ha->rscn_out_ptr]; | |
2380 | format = MSB(MSW(rscn_entry)); | |
2381 | d_id.b.domain = LSB(MSW(rscn_entry)); | |
2382 | d_id.b.area = MSB(LSW(rscn_entry)); | |
2383 | d_id.b.al_pa = LSB(LSW(rscn_entry)); | |
2384 | ||
2385 | DEBUG(printk("scsi(%ld): RSCN queue entry[%d] = " | |
2386 | "[%02x/%02x%02x%02x].\n", | |
2387 | ha->host_no, ha->rscn_out_ptr, format, d_id.b.domain, | |
2388 | d_id.b.area, d_id.b.al_pa)); | |
2389 | ||
2390 | ha->rscn_out_ptr++; | |
2391 | if (ha->rscn_out_ptr == MAX_RSCN_COUNT) | |
2392 | ha->rscn_out_ptr = 0; | |
2393 | ||
2394 | /* Skip duplicate entries. */ | |
2395 | for (rscn_out_iter = ha->rscn_out_ptr; | |
2396 | !ha->flags.rscn_queue_overflow && | |
2397 | rscn_out_iter != ha->rscn_in_ptr; | |
2398 | rscn_out_iter = (rscn_out_iter == | |
2399 | (MAX_RSCN_COUNT - 1)) ? 0: rscn_out_iter + 1) { | |
2400 | ||
2401 | if (rscn_entry != ha->rscn_queue[rscn_out_iter]) | |
2402 | break; | |
2403 | ||
2404 | DEBUG(printk("scsi(%ld): Skipping duplicate RSCN queue " | |
2405 | "entry found at [%d].\n", ha->host_no, | |
2406 | rscn_out_iter)); | |
2407 | ||
2408 | ha->rscn_out_ptr = rscn_out_iter; | |
2409 | } | |
2410 | ||
2411 | /* Queue overflow, set switch default case. */ | |
2412 | if (ha->flags.rscn_queue_overflow) { | |
2413 | DEBUG(printk("scsi(%ld): device_resync: rscn " | |
2414 | "overflow.\n", ha->host_no)); | |
2415 | ||
2416 | format = 3; | |
2417 | ha->flags.rscn_queue_overflow = 0; | |
2418 | } | |
2419 | ||
2420 | switch (format) { | |
2421 | case 0: | |
2422 | if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && | |
2423 | !IS_QLA6312(ha) && !IS_QLA6322(ha) && | |
2424 | ha->flags.init_done) { | |
2425 | /* Handle port RSCN via asyncronous IOCBs */ | |
2426 | rval2 = qla2x00_handle_port_rscn(ha, rscn_entry, | |
2427 | NULL, 0); | |
2428 | if (rval2 == QLA_SUCCESS) | |
2429 | continue; | |
2430 | } | |
2431 | mask = 0xffffff; | |
2432 | break; | |
2433 | case 1: | |
2434 | mask = 0xffff00; | |
2435 | break; | |
2436 | case 2: | |
2437 | mask = 0xff0000; | |
2438 | break; | |
2439 | default: | |
2440 | mask = 0x0; | |
2441 | d_id.b24 = 0; | |
2442 | ha->rscn_out_ptr = ha->rscn_in_ptr; | |
2443 | break; | |
2444 | } | |
2445 | ||
2446 | rval = QLA_SUCCESS; | |
2447 | ||
2448 | /* Abort any outstanding IO descriptors. */ | |
2449 | if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) | |
2450 | qla2x00_cancel_io_descriptors(ha); | |
2451 | ||
2452 | list_for_each_entry(fcport, &ha->fcports, list) { | |
2453 | if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 || | |
2454 | (fcport->d_id.b24 & mask) != d_id.b24 || | |
2455 | fcport->port_type == FCT_BROADCAST) | |
2456 | continue; | |
2457 | ||
2458 | if (atomic_read(&fcport->state) == FCS_ONLINE) { | |
2459 | if (format != 3 || | |
2460 | fcport->port_type != FCT_INITIATOR) { | |
8482e118 | 2461 | qla2x00_mark_device_lost(ha, fcport, 0); |
1da177e4 LT |
2462 | } |
2463 | } | |
2464 | fcport->flags &= ~FCF_FARP_DONE; | |
2465 | } | |
2466 | } | |
2467 | return (rval); | |
2468 | } | |
2469 | ||
2470 | /* | |
2471 | * qla2x00_fabric_dev_login | |
2472 | * Login fabric target device and update FC port database. | |
2473 | * | |
2474 | * Input: | |
2475 | * ha: adapter state pointer. | |
2476 | * fcport: port structure list pointer. | |
2477 | * next_loopid: contains value of a new loop ID that can be used | |
2478 | * by the next login attempt. | |
2479 | * | |
2480 | * Returns: | |
2481 | * qla2x00 local function return status code. | |
2482 | * | |
2483 | * Context: | |
2484 | * Kernel context. | |
2485 | */ | |
2486 | static int | |
2487 | qla2x00_fabric_dev_login(scsi_qla_host_t *ha, fc_port_t *fcport, | |
2488 | uint16_t *next_loopid) | |
2489 | { | |
2490 | int rval; | |
2491 | int retry; | |
2492 | ||
2493 | rval = QLA_SUCCESS; | |
2494 | retry = 0; | |
2495 | ||
2496 | rval = qla2x00_fabric_login(ha, fcport, next_loopid); | |
2497 | if (rval == QLA_SUCCESS) { | |
2498 | rval = qla2x00_get_port_database(ha, fcport, 0); | |
2499 | if (rval != QLA_SUCCESS) { | |
2500 | qla2x00_fabric_logout(ha, fcport->loop_id); | |
2501 | } else { | |
2502 | qla2x00_update_fcport(ha, fcport); | |
2503 | } | |
2504 | } | |
2505 | ||
2506 | return (rval); | |
2507 | } | |
2508 | ||
2509 | /* | |
2510 | * qla2x00_fabric_login | |
2511 | * Issue fabric login command. | |
2512 | * | |
2513 | * Input: | |
2514 | * ha = adapter block pointer. | |
2515 | * device = pointer to FC device type structure. | |
2516 | * | |
2517 | * Returns: | |
2518 | * 0 - Login successfully | |
2519 | * 1 - Login failed | |
2520 | * 2 - Initiator device | |
2521 | * 3 - Fatal error | |
2522 | */ | |
2523 | int | |
2524 | qla2x00_fabric_login(scsi_qla_host_t *ha, fc_port_t *fcport, | |
2525 | uint16_t *next_loopid) | |
2526 | { | |
2527 | int rval; | |
2528 | int retry; | |
2529 | uint16_t tmp_loopid; | |
2530 | uint16_t mb[MAILBOX_REGISTER_COUNT]; | |
2531 | ||
2532 | retry = 0; | |
2533 | tmp_loopid = 0; | |
2534 | ||
2535 | for (;;) { | |
2536 | DEBUG(printk("scsi(%ld): Trying Fabric Login w/loop id 0x%04x " | |
2537 | "for port %02x%02x%02x.\n", | |
2538 | ha->host_no, fcport->loop_id, fcport->d_id.b.domain, | |
2539 | fcport->d_id.b.area, fcport->d_id.b.al_pa)); | |
2540 | ||
2541 | /* Login fcport on switch. */ | |
2542 | qla2x00_login_fabric(ha, fcport->loop_id, | |
2543 | fcport->d_id.b.domain, fcport->d_id.b.area, | |
2544 | fcport->d_id.b.al_pa, mb, BIT_0); | |
2545 | if (mb[0] == MBS_PORT_ID_USED) { | |
2546 | /* | |
2547 | * Device has another loop ID. The firmware team | |
2548 | * recommends us to perform an implicit login with the | |
2549 | * specified ID again. The ID we just used is save here | |
2550 | * so we return with an ID that can be tried by the | |
2551 | * next login. | |
2552 | */ | |
2553 | retry++; | |
2554 | tmp_loopid = fcport->loop_id; | |
2555 | fcport->loop_id = mb[1]; | |
2556 | ||
2557 | DEBUG(printk("Fabric Login: port in use - next " | |
2558 | "loop id=0x%04x, port Id=%02x%02x%02x.\n", | |
2559 | fcport->loop_id, fcport->d_id.b.domain, | |
2560 | fcport->d_id.b.area, fcport->d_id.b.al_pa)); | |
2561 | ||
2562 | } else if (mb[0] == MBS_COMMAND_COMPLETE) { | |
2563 | /* | |
2564 | * Login succeeded. | |
2565 | */ | |
2566 | if (retry) { | |
2567 | /* A retry occurred before. */ | |
2568 | *next_loopid = tmp_loopid; | |
2569 | } else { | |
2570 | /* | |
2571 | * No retry occurred before. Just increment the | |
2572 | * ID value for next login. | |
2573 | */ | |
2574 | *next_loopid = (fcport->loop_id + 1); | |
2575 | } | |
2576 | ||
2577 | if (mb[1] & BIT_0) { | |
2578 | fcport->port_type = FCT_INITIATOR; | |
2579 | } else { | |
2580 | fcport->port_type = FCT_TARGET; | |
2581 | if (mb[1] & BIT_1) { | |
2582 | fcport->flags |= FCF_TAPE_PRESENT; | |
2583 | } | |
2584 | } | |
2585 | ||
2586 | rval = QLA_SUCCESS; | |
2587 | break; | |
2588 | } else if (mb[0] == MBS_LOOP_ID_USED) { | |
2589 | /* | |
2590 | * Loop ID already used, try next loop ID. | |
2591 | */ | |
2592 | fcport->loop_id++; | |
2593 | rval = qla2x00_find_new_loop_id(ha, fcport); | |
2594 | if (rval != QLA_SUCCESS) { | |
2595 | /* Ran out of loop IDs to use */ | |
2596 | break; | |
2597 | } | |
2598 | } else if (mb[0] == MBS_COMMAND_ERROR) { | |
2599 | /* | |
2600 | * Firmware possibly timed out during login. If NO | |
2601 | * retries are left to do then the device is declared | |
2602 | * dead. | |
2603 | */ | |
2604 | *next_loopid = fcport->loop_id; | |
2605 | qla2x00_fabric_logout(ha, fcport->loop_id); | |
2606 | qla2x00_mark_device_lost(ha, fcport, 1); | |
2607 | ||
2608 | rval = 1; | |
2609 | break; | |
2610 | } else { | |
2611 | /* | |
2612 | * unrecoverable / not handled error | |
2613 | */ | |
2614 | DEBUG2(printk("%s(%ld): failed=%x port_id=%02x%02x%02x " | |
2615 | "loop_id=%x jiffies=%lx.\n", | |
2616 | __func__, ha->host_no, mb[0], | |
2617 | fcport->d_id.b.domain, fcport->d_id.b.area, | |
2618 | fcport->d_id.b.al_pa, fcport->loop_id, jiffies)); | |
2619 | ||
2620 | *next_loopid = fcport->loop_id; | |
2621 | qla2x00_fabric_logout(ha, fcport->loop_id); | |
2622 | fcport->loop_id = FC_NO_LOOP_ID; | |
2623 | atomic_set(&fcport->state, FCS_DEVICE_DEAD); | |
2624 | ||
2625 | rval = 3; | |
2626 | break; | |
2627 | } | |
2628 | } | |
2629 | ||
2630 | return (rval); | |
2631 | } | |
2632 | ||
2633 | /* | |
2634 | * qla2x00_local_device_login | |
2635 | * Issue local device login command. | |
2636 | * | |
2637 | * Input: | |
2638 | * ha = adapter block pointer. | |
2639 | * loop_id = loop id of device to login to. | |
2640 | * | |
2641 | * Returns (Where's the #define!!!!): | |
2642 | * 0 - Login successfully | |
2643 | * 1 - Login failed | |
2644 | * 3 - Fatal error | |
2645 | */ | |
2646 | int | |
2647 | qla2x00_local_device_login(scsi_qla_host_t *ha, uint16_t loop_id) | |
2648 | { | |
2649 | int rval; | |
2650 | uint16_t mb[MAILBOX_REGISTER_COUNT]; | |
2651 | ||
2652 | memset(mb, 0, sizeof(mb)); | |
2653 | rval = qla2x00_login_local_device(ha, loop_id, mb, BIT_0); | |
2654 | if (rval == QLA_SUCCESS) { | |
2655 | /* Interrogate mailbox registers for any errors */ | |
2656 | if (mb[0] == MBS_COMMAND_ERROR) | |
2657 | rval = 1; | |
2658 | else if (mb[0] == MBS_COMMAND_PARAMETER_ERROR) | |
2659 | /* device not in PCB table */ | |
2660 | rval = 3; | |
2661 | } | |
2662 | ||
2663 | return (rval); | |
2664 | } | |
2665 | ||
2666 | /* | |
2667 | * qla2x00_loop_resync | |
2668 | * Resync with fibre channel devices. | |
2669 | * | |
2670 | * Input: | |
2671 | * ha = adapter block pointer. | |
2672 | * | |
2673 | * Returns: | |
2674 | * 0 = success | |
2675 | */ | |
2676 | int | |
2677 | qla2x00_loop_resync(scsi_qla_host_t *ha) | |
2678 | { | |
2679 | int rval; | |
2680 | uint32_t wait_time; | |
2681 | ||
2682 | rval = QLA_SUCCESS; | |
2683 | ||
2684 | atomic_set(&ha->loop_state, LOOP_UPDATE); | |
1da177e4 LT |
2685 | clear_bit(ISP_ABORT_RETRY, &ha->dpc_flags); |
2686 | if (ha->flags.online) { | |
2687 | if (!(rval = qla2x00_fw_ready(ha))) { | |
2688 | /* Wait at most MAX_TARGET RSCNs for a stable link. */ | |
2689 | wait_time = 256; | |
2690 | do { | |
2691 | /* v2.19.05b6 */ | |
2692 | atomic_set(&ha->loop_state, LOOP_UPDATE); | |
2693 | ||
2694 | /* | |
2695 | * Issue marker command only when we are going | |
2696 | * to start the I/O . | |
2697 | */ | |
2698 | ha->marker_needed = 1; | |
2699 | ||
2700 | /* Remap devices on Loop. */ | |
2701 | clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags); | |
2702 | ||
2703 | qla2x00_configure_loop(ha); | |
2704 | wait_time--; | |
2705 | } while (!atomic_read(&ha->loop_down_timer) && | |
2706 | !(test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) && | |
2707 | wait_time && | |
2708 | (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))); | |
2709 | } | |
1da177e4 LT |
2710 | } |
2711 | ||
2712 | if (test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) { | |
2713 | return (QLA_FUNCTION_FAILED); | |
2714 | } | |
2715 | ||
2716 | if (rval) { | |
2717 | DEBUG2_3(printk("%s(): **** FAILED ****\n", __func__)); | |
2718 | } | |
2719 | ||
2720 | return (rval); | |
2721 | } | |
2722 | ||
1da177e4 LT |
2723 | void |
2724 | qla2x00_rescan_fcports(scsi_qla_host_t *ha) | |
2725 | { | |
2726 | int rescan_done; | |
2727 | fc_port_t *fcport; | |
2728 | ||
2729 | rescan_done = 0; | |
2730 | list_for_each_entry(fcport, &ha->fcports, list) { | |
2731 | if ((fcport->flags & FCF_RESCAN_NEEDED) == 0) | |
2732 | continue; | |
2733 | ||
2734 | qla2x00_update_fcport(ha, fcport); | |
2735 | fcport->flags &= ~FCF_RESCAN_NEEDED; | |
2736 | ||
2737 | rescan_done = 1; | |
2738 | } | |
2739 | qla2x00_probe_for_all_luns(ha); | |
1da177e4 LT |
2740 | } |
2741 | ||
2742 | /* | |
2743 | * qla2x00_abort_isp | |
2744 | * Resets ISP and aborts all outstanding commands. | |
2745 | * | |
2746 | * Input: | |
2747 | * ha = adapter block pointer. | |
2748 | * | |
2749 | * Returns: | |
2750 | * 0 = success | |
2751 | */ | |
2752 | int | |
2753 | qla2x00_abort_isp(scsi_qla_host_t *ha) | |
2754 | { | |
2755 | unsigned long flags = 0; | |
2756 | uint16_t cnt; | |
2757 | srb_t *sp; | |
2758 | uint8_t status = 0; | |
2759 | ||
2760 | if (ha->flags.online) { | |
2761 | ha->flags.online = 0; | |
2762 | clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); | |
1da177e4 LT |
2763 | |
2764 | qla_printk(KERN_INFO, ha, | |
2765 | "Performing ISP error recovery - ha= %p.\n", ha); | |
2766 | qla2x00_reset_chip(ha); | |
2767 | ||
2768 | atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME); | |
2769 | if (atomic_read(&ha->loop_state) != LOOP_DOWN) { | |
2770 | atomic_set(&ha->loop_state, LOOP_DOWN); | |
2771 | qla2x00_mark_all_devices_lost(ha); | |
2772 | } else { | |
2773 | if (!atomic_read(&ha->loop_down_timer)) | |
2774 | atomic_set(&ha->loop_down_timer, | |
2775 | LOOP_DOWN_TIME); | |
2776 | } | |
2777 | ||
2778 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
2779 | /* Requeue all commands in outstanding command list. */ | |
2780 | for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) { | |
2781 | sp = ha->outstanding_cmds[cnt]; | |
2782 | if (sp) { | |
2783 | ha->outstanding_cmds[cnt] = NULL; | |
1da177e4 | 2784 | sp->flags = 0; |
f4f051eb | 2785 | sp->cmd->result = DID_RESET << 16; |
1da177e4 | 2786 | sp->cmd->host_scribble = (unsigned char *)NULL; |
f4f051eb | 2787 | qla2x00_sp_compl(ha, sp); |
1da177e4 LT |
2788 | } |
2789 | } | |
2790 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
2791 | ||
2792 | qla2x00_nvram_config(ha); | |
2793 | ||
2794 | if (!qla2x00_restart_isp(ha)) { | |
2795 | clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags); | |
2796 | ||
2797 | if (!atomic_read(&ha->loop_down_timer)) { | |
2798 | /* | |
2799 | * Issue marker command only when we are going | |
2800 | * to start the I/O . | |
2801 | */ | |
2802 | ha->marker_needed = 1; | |
2803 | } | |
2804 | ||
2805 | ha->flags.online = 1; | |
2806 | ||
2807 | /* Enable ISP interrupts. */ | |
2808 | qla2x00_enable_intrs(ha); | |
2809 | ||
1da177e4 LT |
2810 | ha->isp_abort_cnt = 0; |
2811 | clear_bit(ISP_ABORT_RETRY, &ha->dpc_flags); | |
2812 | } else { /* failed the ISP abort */ | |
2813 | ha->flags.online = 1; | |
2814 | if (test_bit(ISP_ABORT_RETRY, &ha->dpc_flags)) { | |
2815 | if (ha->isp_abort_cnt == 0) { | |
2816 | qla_printk(KERN_WARNING, ha, | |
2817 | "ISP error recovery failed - " | |
2818 | "board disabled\n"); | |
2819 | /* | |
2820 | * The next call disables the board | |
2821 | * completely. | |
2822 | */ | |
2823 | qla2x00_reset_adapter(ha); | |
1da177e4 LT |
2824 | ha->flags.online = 0; |
2825 | clear_bit(ISP_ABORT_RETRY, | |
2826 | &ha->dpc_flags); | |
2827 | status = 0; | |
2828 | } else { /* schedule another ISP abort */ | |
2829 | ha->isp_abort_cnt--; | |
2830 | DEBUG(printk("qla%ld: ISP abort - " | |
2831 | "retry remainning %d\n", | |
2832 | ha->host_no, ha->isp_abort_cnt);) | |
2833 | status = 1; | |
2834 | } | |
2835 | } else { | |
2836 | ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT; | |
2837 | DEBUG(printk("qla2x00(%ld): ISP error recovery " | |
2838 | "- retrying (%d) more times\n", | |
2839 | ha->host_no, ha->isp_abort_cnt);) | |
2840 | set_bit(ISP_ABORT_RETRY, &ha->dpc_flags); | |
2841 | status = 1; | |
2842 | } | |
2843 | } | |
2844 | ||
2845 | } | |
2846 | ||
2847 | if (status) { | |
2848 | qla_printk(KERN_INFO, ha, | |
2849 | "qla2x00_abort_isp: **** FAILED ****\n"); | |
2850 | } else { | |
2851 | DEBUG(printk(KERN_INFO | |
2852 | "qla2x00_abort_isp(%ld): exiting.\n", | |
2853 | ha->host_no);) | |
2854 | } | |
2855 | ||
2856 | return(status); | |
2857 | } | |
2858 | ||
2859 | /* | |
2860 | * qla2x00_restart_isp | |
2861 | * restarts the ISP after a reset | |
2862 | * | |
2863 | * Input: | |
2864 | * ha = adapter block pointer. | |
2865 | * | |
2866 | * Returns: | |
2867 | * 0 = success | |
2868 | */ | |
2869 | static int | |
2870 | qla2x00_restart_isp(scsi_qla_host_t *ha) | |
2871 | { | |
2872 | uint8_t status = 0; | |
2873 | device_reg_t __iomem *reg = ha->iobase; | |
2874 | unsigned long flags = 0; | |
2875 | uint32_t wait_time; | |
2876 | ||
2877 | /* If firmware needs to be loaded */ | |
2878 | if (qla2x00_isp_firmware(ha)) { | |
2879 | ha->flags.online = 0; | |
2880 | if (!(status = qla2x00_chip_diag(ha))) { | |
2881 | if (IS_QLA2100(ha) || IS_QLA2200(ha)) { | |
2882 | status = qla2x00_setup_chip(ha); | |
2883 | goto done; | |
2884 | } | |
2885 | ||
2886 | reg = ha->iobase; | |
2887 | ||
2888 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
2889 | ||
2890 | /* Disable SRAM, Instruction RAM and GP RAM parity. */ | |
2891 | WRT_REG_WORD(®->hccr, (HCCR_ENABLE_PARITY + 0x0)); | |
2892 | RD_REG_WORD(®->hccr); /* PCI Posting. */ | |
2893 | ||
2894 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
2895 | ||
2896 | status = qla2x00_setup_chip(ha); | |
2897 | ||
2898 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
2899 | ||
2900 | /* Enable proper parity */ | |
2901 | if (IS_QLA2300(ha)) | |
2902 | /* SRAM parity */ | |
2903 | WRT_REG_WORD(®->hccr, | |
2904 | (HCCR_ENABLE_PARITY + 0x1)); | |
2905 | else | |
2906 | /* SRAM, Instruction RAM and GP RAM parity */ | |
2907 | WRT_REG_WORD(®->hccr, | |
2908 | (HCCR_ENABLE_PARITY + 0x7)); | |
2909 | RD_REG_WORD(®->hccr); /* PCI Posting. */ | |
2910 | ||
2911 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
2912 | } | |
2913 | } | |
2914 | ||
2915 | done: | |
2916 | if (!status && !(status = qla2x00_init_rings(ha))) { | |
2917 | clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags); | |
2918 | if (!(status = qla2x00_fw_ready(ha))) { | |
2919 | DEBUG(printk("%s(): Start configure loop, " | |
2920 | "status = %d\n", | |
2921 | __func__, | |
2922 | status);) | |
2923 | ha->flags.online = 1; | |
2924 | /* Wait at most MAX_TARGET RSCNs for a stable link. */ | |
2925 | wait_time = 256; | |
2926 | do { | |
2927 | clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags); | |
2928 | qla2x00_configure_loop(ha); | |
2929 | wait_time--; | |
2930 | } while (!atomic_read(&ha->loop_down_timer) && | |
2931 | !(test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) && | |
2932 | wait_time && | |
2933 | (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))); | |
2934 | } | |
2935 | ||
2936 | /* if no cable then assume it's good */ | |
2937 | if ((ha->device_flags & DFLG_NO_CABLE)) | |
2938 | status = 0; | |
2939 | ||
2940 | DEBUG(printk("%s(): Configure loop done, status = 0x%x\n", | |
2941 | __func__, | |
2942 | status);) | |
2943 | } | |
2944 | return (status); | |
2945 | } | |
2946 | ||
2947 | /* | |
2948 | * qla2x00_reset_adapter | |
2949 | * Reset adapter. | |
2950 | * | |
2951 | * Input: | |
2952 | * ha = adapter block pointer. | |
2953 | */ | |
2954 | static void | |
2955 | qla2x00_reset_adapter(scsi_qla_host_t *ha) | |
2956 | { | |
2957 | unsigned long flags = 0; | |
2958 | device_reg_t __iomem *reg = ha->iobase; | |
2959 | ||
2960 | ha->flags.online = 0; | |
2961 | qla2x00_disable_intrs(ha); | |
2962 | ||
2963 | /* Reset RISC processor. */ | |
2964 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
2965 | WRT_REG_WORD(®->hccr, HCCR_RESET_RISC); | |
2966 | RD_REG_WORD(®->hccr); /* PCI Posting. */ | |
2967 | WRT_REG_WORD(®->hccr, HCCR_RELEASE_RISC); | |
2968 | RD_REG_WORD(®->hccr); /* PCI Posting. */ | |
2969 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
2970 | } |