ce74a6025a07693c8a4475efba5fe2780b2f5b0f
[sfrench/cifs-2.6.git] / drivers / scsi / qla2xxx / qla_init.c
1 /*
2  * QLogic Fibre Channel HBA Driver
3  * Copyright (c)  2003-2005 QLogic Corporation
4  *
5  * See LICENSE.qla2xxx for copyright and licensing details.
6  */
7 #include "qla_def.h"
8
9 #include <linux/delay.h>
10 #include <linux/vmalloc.h>
11
12 #include "qla_devtbl.h"
13
14 /* XXX(hch): this is ugly, but we don't want to pull in exioctl.h */
15 #ifndef EXT_IS_LUN_BIT_SET
16 #define EXT_IS_LUN_BIT_SET(P,L) \
17     (((P)->mask[L/8] & (0x80 >> (L%8)))?1:0)
18 #define EXT_SET_LUN_BIT(P,L) \
19     ((P)->mask[L/8] |= (0x80 >> (L%8)))
20 #endif
21
22 /*
23 *  QLogic ISP2x00 Hardware Support Function Prototypes.
24 */
25 static int qla2x00_isp_firmware(scsi_qla_host_t *);
26 static void qla2x00_resize_request_q(scsi_qla_host_t *);
27 static int qla2x00_setup_chip(scsi_qla_host_t *);
28 static void qla2x00_init_response_q_entries(scsi_qla_host_t *);
29 static int qla2x00_init_rings(scsi_qla_host_t *);
30 static int qla2x00_fw_ready(scsi_qla_host_t *);
31 static int qla2x00_configure_hba(scsi_qla_host_t *);
32 static int qla2x00_configure_loop(scsi_qla_host_t *);
33 static int qla2x00_configure_local_loop(scsi_qla_host_t *);
34 static int qla2x00_configure_fabric(scsi_qla_host_t *);
35 static int qla2x00_find_all_fabric_devs(scsi_qla_host_t *, struct list_head *);
36 static int qla2x00_device_resync(scsi_qla_host_t *);
37 static int qla2x00_fabric_dev_login(scsi_qla_host_t *, fc_port_t *,
38     uint16_t *);
39
40 static int qla2x00_restart_isp(scsi_qla_host_t *);
41
42 /****************************************************************************/
43 /*                QLogic ISP2x00 Hardware Support Functions.                */
44 /****************************************************************************/
45
46 /*
47 * qla2x00_initialize_adapter
48 *      Initialize board.
49 *
50 * Input:
51 *      ha = adapter block pointer.
52 *
53 * Returns:
54 *      0 = success
55 */
56 int
57 qla2x00_initialize_adapter(scsi_qla_host_t *ha)
58 {
59         int     rval;
60         uint8_t restart_risc = 0;
61         uint8_t retry;
62         uint32_t wait_time;
63
64         /* Clear adapter flags. */
65         ha->flags.online = 0;
66         ha->flags.reset_active = 0;
67         atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
68         atomic_set(&ha->loop_state, LOOP_DOWN);
69         ha->device_flags = 0;
70         ha->dpc_flags = 0;
71         ha->flags.management_server_logged_in = 0;
72         ha->marker_needed = 0;
73         ha->mbx_flags = 0;
74         ha->isp_abort_cnt = 0;
75         ha->beacon_blink_led = 0;
76         set_bit(REGISTER_FDMI_NEEDED, &ha->dpc_flags);
77
78         qla_printk(KERN_INFO, ha, "Configuring PCI space...\n");
79         rval = ha->isp_ops.pci_config(ha);
80         if (rval) {
81                 DEBUG2(printk("scsi(%ld): Unable to configure PCI space=n",
82                     ha->host_no));
83                 return (rval);
84         }
85
86         ha->isp_ops.reset_chip(ha);
87
88         qla_printk(KERN_INFO, ha, "Configure NVRAM parameters...\n");
89
90         ha->isp_ops.nvram_config(ha);
91
92         if (ha->flags.disable_serdes) {
93                 /* Mask HBA via NVRAM settings? */
94                 qla_printk(KERN_INFO, ha, "Masking HBA WWPN "
95                     "%02x%02x%02x%02x%02x%02x%02x%02x (via NVRAM).\n",
96                     ha->port_name[0], ha->port_name[1],
97                     ha->port_name[2], ha->port_name[3],
98                     ha->port_name[4], ha->port_name[5],
99                     ha->port_name[6], ha->port_name[7]);
100                 return QLA_FUNCTION_FAILED;
101         }
102
103         qla_printk(KERN_INFO, ha, "Verifying loaded RISC code...\n");
104
105         retry = 10;
106         /*
107          * Try to configure the loop.
108          */
109         do {
110                 restart_risc = 0;
111
112                 /* If firmware needs to be loaded */
113                 if (qla2x00_isp_firmware(ha) != QLA_SUCCESS) {
114                         if ((rval = ha->isp_ops.chip_diag(ha)) == QLA_SUCCESS) {
115                                 rval = qla2x00_setup_chip(ha);
116                         }
117                 }
118
119                 if (rval == QLA_SUCCESS &&
120                     (rval = qla2x00_init_rings(ha)) == QLA_SUCCESS) {
121 check_fw_ready_again:
122                         /*
123                          * Wait for a successful LIP up to a maximum
124                          * of (in seconds): RISC login timeout value,
125                          * RISC retry count value, and port down retry
126                          * value OR a minimum of 4 seconds OR If no
127                          * cable, only 5 seconds.
128                          */
129                         rval = qla2x00_fw_ready(ha);
130                         if (rval == QLA_SUCCESS) {
131                                 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
132
133                                 /* Issue a marker after FW becomes ready. */
134                                 qla2x00_marker(ha, 0, 0, MK_SYNC_ALL);
135
136                                 /*
137                                  * Wait at most MAX_TARGET RSCNs for a stable
138                                  * link.
139                                  */
140                                 wait_time = 256;
141                                 do {
142                                         clear_bit(LOOP_RESYNC_NEEDED,
143                                             &ha->dpc_flags);
144                                         rval = qla2x00_configure_loop(ha);
145
146                                         if (test_and_clear_bit(ISP_ABORT_NEEDED,
147                                             &ha->dpc_flags)) {
148                                                 restart_risc = 1;
149                                                 break;
150                                         }
151
152                                         /*
153                                          * If loop state change while we were
154                                          * discoverying devices then wait for
155                                          * LIP to complete
156                                          */
157
158                                         if (atomic_read(&ha->loop_state) !=
159                                             LOOP_READY && retry--) {
160                                                 goto check_fw_ready_again;
161                                         }
162                                         wait_time--;
163                                 } while (!atomic_read(&ha->loop_down_timer) &&
164                                     retry &&
165                                     wait_time &&
166                                     (test_bit(LOOP_RESYNC_NEEDED,
167                                         &ha->dpc_flags)));
168
169                                 if (wait_time == 0)
170                                         rval = QLA_FUNCTION_FAILED;
171                         } else if (ha->device_flags & DFLG_NO_CABLE)
172                                 /* If no cable, then all is good. */
173                                 rval = QLA_SUCCESS;
174                 }
175         } while (restart_risc && retry--);
176
177         if (rval == QLA_SUCCESS) {
178                 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
179                 qla2x00_marker(ha, 0, 0, MK_SYNC_ALL);
180                 ha->marker_needed = 0;
181
182                 ha->flags.online = 1;
183         } else {
184                 DEBUG2_3(printk("%s(): **** FAILED ****\n", __func__));
185         }
186
187         return (rval);
188 }
189
190 /**
191  * qla2100_pci_config() - Setup ISP21xx PCI configuration registers.
192  * @ha: HA context
193  *
194  * Returns 0 on success.
195  */
196 int
197 qla2100_pci_config(scsi_qla_host_t *ha)
198 {
199         uint16_t w, mwi;
200         uint32_t d;
201         unsigned long flags;
202         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
203
204         pci_set_master(ha->pdev);
205         mwi = 0;
206         if (pci_set_mwi(ha->pdev))
207                 mwi = PCI_COMMAND_INVALIDATE;
208
209         pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
210         w |= mwi | (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
211         pci_write_config_word(ha->pdev, PCI_COMMAND, w);
212
213         /* Reset expansion ROM address decode enable */
214         pci_read_config_dword(ha->pdev, PCI_ROM_ADDRESS, &d);
215         d &= ~PCI_ROM_ADDRESS_ENABLE;
216         pci_write_config_dword(ha->pdev, PCI_ROM_ADDRESS, d);
217
218         /* Get PCI bus information. */
219         spin_lock_irqsave(&ha->hardware_lock, flags);
220         ha->pci_attr = RD_REG_WORD(&reg->ctrl_status);
221         spin_unlock_irqrestore(&ha->hardware_lock, flags);
222
223         return QLA_SUCCESS;
224 }
225
226 /**
227  * qla2300_pci_config() - Setup ISP23xx PCI configuration registers.
228  * @ha: HA context
229  *
230  * Returns 0 on success.
231  */
232 int
233 qla2300_pci_config(scsi_qla_host_t *ha)
234 {
235         uint16_t        w, mwi;
236         uint32_t        d;
237         unsigned long   flags = 0;
238         uint32_t        cnt;
239         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
240
241         pci_set_master(ha->pdev);
242         mwi = 0;
243         if (pci_set_mwi(ha->pdev))
244                 mwi = PCI_COMMAND_INVALIDATE;
245
246         pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
247         w |= mwi | (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
248
249         if (IS_QLA2322(ha) || IS_QLA6322(ha))
250                 w &= ~PCI_COMMAND_INTX_DISABLE;
251
252         /*
253          * If this is a 2300 card and not 2312, reset the
254          * COMMAND_INVALIDATE due to a bug in the 2300. Unfortunately,
255          * the 2310 also reports itself as a 2300 so we need to get the
256          * fb revision level -- a 6 indicates it really is a 2300 and
257          * not a 2310.
258          */
259         if (IS_QLA2300(ha)) {
260                 spin_lock_irqsave(&ha->hardware_lock, flags);
261
262                 /* Pause RISC. */
263                 WRT_REG_WORD(&reg->hccr, HCCR_PAUSE_RISC);
264                 for (cnt = 0; cnt < 30000; cnt++) {
265                         if ((RD_REG_WORD(&reg->hccr) & HCCR_RISC_PAUSE) != 0)
266                                 break;
267
268                         udelay(10);
269                 }
270
271                 /* Select FPM registers. */
272                 WRT_REG_WORD(&reg->ctrl_status, 0x20);
273                 RD_REG_WORD(&reg->ctrl_status);
274
275                 /* Get the fb rev level */
276                 ha->fb_rev = RD_FB_CMD_REG(ha, reg);
277
278                 if (ha->fb_rev == FPM_2300)
279                         w &= ~PCI_COMMAND_INVALIDATE;
280
281                 /* Deselect FPM registers. */
282                 WRT_REG_WORD(&reg->ctrl_status, 0x0);
283                 RD_REG_WORD(&reg->ctrl_status);
284
285                 /* Release RISC module. */
286                 WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
287                 for (cnt = 0; cnt < 30000; cnt++) {
288                         if ((RD_REG_WORD(&reg->hccr) & HCCR_RISC_PAUSE) == 0)
289                                 break;
290
291                         udelay(10);
292                 }
293
294                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
295         }
296         pci_write_config_word(ha->pdev, PCI_COMMAND, w);
297
298         pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);
299
300         /* Reset expansion ROM address decode enable */
301         pci_read_config_dword(ha->pdev, PCI_ROM_ADDRESS, &d);
302         d &= ~PCI_ROM_ADDRESS_ENABLE;
303         pci_write_config_dword(ha->pdev, PCI_ROM_ADDRESS, d);
304
305         /* Get PCI bus information. */
306         spin_lock_irqsave(&ha->hardware_lock, flags);
307         ha->pci_attr = RD_REG_WORD(&reg->ctrl_status);
308         spin_unlock_irqrestore(&ha->hardware_lock, flags);
309
310         return QLA_SUCCESS;
311 }
312
313 /**
314  * qla24xx_pci_config() - Setup ISP24xx PCI configuration registers.
315  * @ha: HA context
316  *
317  * Returns 0 on success.
318  */
319 int
320 qla24xx_pci_config(scsi_qla_host_t *ha)
321 {
322         uint16_t w, mwi;
323         uint32_t d;
324         unsigned long flags = 0;
325         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
326         int pcix_cmd_reg, pcie_dctl_reg;
327
328         pci_set_master(ha->pdev);
329         mwi = 0;
330         if (pci_set_mwi(ha->pdev))
331                 mwi = PCI_COMMAND_INVALIDATE;
332
333         pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
334         w |= mwi | (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
335         w &= ~PCI_COMMAND_INTX_DISABLE;
336         pci_write_config_word(ha->pdev, PCI_COMMAND, w);
337
338         pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);
339
340         /* PCI-X -- adjust Maximum Memory Read Byte Count (2048). */
341         pcix_cmd_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_PCIX);
342         if (pcix_cmd_reg) {
343                 uint16_t pcix_cmd;
344
345                 pcix_cmd_reg += PCI_X_CMD;
346                 pci_read_config_word(ha->pdev, pcix_cmd_reg, &pcix_cmd);
347                 pcix_cmd &= ~PCI_X_CMD_MAX_READ;
348                 pcix_cmd |= 0x0008;
349                 pci_write_config_word(ha->pdev, pcix_cmd_reg, pcix_cmd);
350         }
351
352         /* PCIe -- adjust Maximum Read Request Size (2048). */
353         pcie_dctl_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
354         if (pcie_dctl_reg) {
355                 uint16_t pcie_dctl;
356
357                 pcie_dctl_reg += PCI_EXP_DEVCTL;
358                 pci_read_config_word(ha->pdev, pcie_dctl_reg, &pcie_dctl);
359                 pcie_dctl &= ~PCI_EXP_DEVCTL_READRQ;
360                 pcie_dctl |= 0x4000;
361                 pci_write_config_word(ha->pdev, pcie_dctl_reg, pcie_dctl);
362         }
363
364         /* Reset expansion ROM address decode enable */
365         pci_read_config_dword(ha->pdev, PCI_ROM_ADDRESS, &d);
366         d &= ~PCI_ROM_ADDRESS_ENABLE;
367         pci_write_config_dword(ha->pdev, PCI_ROM_ADDRESS, d);
368
369         /* Get PCI bus information. */
370         spin_lock_irqsave(&ha->hardware_lock, flags);
371         ha->pci_attr = RD_REG_DWORD(&reg->ctrl_status);
372         spin_unlock_irqrestore(&ha->hardware_lock, flags);
373
374         return QLA_SUCCESS;
375 }
376
377 /**
378  * qla2x00_isp_firmware() - Choose firmware image.
379  * @ha: HA context
380  *
381  * Returns 0 on success.
382  */
383 static int
384 qla2x00_isp_firmware(scsi_qla_host_t *ha)
385 {
386         int  rval;
387
388         /* Assume loading risc code */
389         rval = QLA_FUNCTION_FAILED;
390
391         if (ha->flags.disable_risc_code_load) {
392                 DEBUG2(printk("scsi(%ld): RISC CODE NOT loaded\n",
393                     ha->host_no));
394                 qla_printk(KERN_INFO, ha, "RISC CODE NOT loaded\n");
395
396                 /* Verify checksum of loaded RISC code. */
397                 rval = qla2x00_verify_checksum(ha, ha->fw_srisc_address);
398         }
399
400         if (rval) {
401                 DEBUG2_3(printk("scsi(%ld): **** Load RISC code ****\n",
402                     ha->host_no));
403         }
404
405         return (rval);
406 }
407
408 /**
409  * qla2x00_reset_chip() - Reset ISP chip.
410  * @ha: HA context
411  *
412  * Returns 0 on success.
413  */
414 void
415 qla2x00_reset_chip(scsi_qla_host_t *ha)
416 {
417         unsigned long   flags = 0;
418         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
419         uint32_t        cnt;
420         uint16_t        cmd;
421
422         ha->isp_ops.disable_intrs(ha);
423
424         spin_lock_irqsave(&ha->hardware_lock, flags);
425
426         /* Turn off master enable */
427         cmd = 0;
428         pci_read_config_word(ha->pdev, PCI_COMMAND, &cmd);
429         cmd &= ~PCI_COMMAND_MASTER;
430         pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);
431
432         if (!IS_QLA2100(ha)) {
433                 /* Pause RISC. */
434                 WRT_REG_WORD(&reg->hccr, HCCR_PAUSE_RISC);
435                 if (IS_QLA2200(ha) || IS_QLA2300(ha)) {
436                         for (cnt = 0; cnt < 30000; cnt++) {
437                                 if ((RD_REG_WORD(&reg->hccr) &
438                                     HCCR_RISC_PAUSE) != 0)
439                                         break;
440                                 udelay(100);
441                         }
442                 } else {
443                         RD_REG_WORD(&reg->hccr);        /* PCI Posting. */
444                         udelay(10);
445                 }
446
447                 /* Select FPM registers. */
448                 WRT_REG_WORD(&reg->ctrl_status, 0x20);
449                 RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
450
451                 /* FPM Soft Reset. */
452                 WRT_REG_WORD(&reg->fpm_diag_config, 0x100);
453                 RD_REG_WORD(&reg->fpm_diag_config);     /* PCI Posting. */
454
455                 /* Toggle Fpm Reset. */
456                 if (!IS_QLA2200(ha)) {
457                         WRT_REG_WORD(&reg->fpm_diag_config, 0x0);
458                         RD_REG_WORD(&reg->fpm_diag_config); /* PCI Posting. */
459                 }
460
461                 /* Select frame buffer registers. */
462                 WRT_REG_WORD(&reg->ctrl_status, 0x10);
463                 RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
464
465                 /* Reset frame buffer FIFOs. */
466                 if (IS_QLA2200(ha)) {
467                         WRT_FB_CMD_REG(ha, reg, 0xa000);
468                         RD_FB_CMD_REG(ha, reg);         /* PCI Posting. */
469                 } else {
470                         WRT_FB_CMD_REG(ha, reg, 0x00fc);
471
472                         /* Read back fb_cmd until zero or 3 seconds max */
473                         for (cnt = 0; cnt < 3000; cnt++) {
474                                 if ((RD_FB_CMD_REG(ha, reg) & 0xff) == 0)
475                                         break;
476                                 udelay(100);
477                         }
478                 }
479
480                 /* Select RISC module registers. */
481                 WRT_REG_WORD(&reg->ctrl_status, 0);
482                 RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
483
484                 /* Reset RISC processor. */
485                 WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
486                 RD_REG_WORD(&reg->hccr);                /* PCI Posting. */
487
488                 /* Release RISC processor. */
489                 WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
490                 RD_REG_WORD(&reg->hccr);                /* PCI Posting. */
491         }
492
493         WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
494         WRT_REG_WORD(&reg->hccr, HCCR_CLR_HOST_INT);
495
496         /* Reset ISP chip. */
497         WRT_REG_WORD(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
498
499         /* Wait for RISC to recover from reset. */
500         if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
501                 /*
502                  * It is necessary to for a delay here since the card doesn't
503                  * respond to PCI reads during a reset. On some architectures
504                  * this will result in an MCA.
505                  */
506                 udelay(20);
507                 for (cnt = 30000; cnt; cnt--) {
508                         if ((RD_REG_WORD(&reg->ctrl_status) &
509                             CSR_ISP_SOFT_RESET) == 0)
510                                 break;
511                         udelay(100);
512                 }
513         } else
514                 udelay(10);
515
516         /* Reset RISC processor. */
517         WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
518
519         WRT_REG_WORD(&reg->semaphore, 0);
520
521         /* Release RISC processor. */
522         WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
523         RD_REG_WORD(&reg->hccr);                        /* PCI Posting. */
524
525         if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
526                 for (cnt = 0; cnt < 30000; cnt++) {
527                         if (RD_MAILBOX_REG(ha, reg, 0) != MBS_BUSY)
528                                 break;
529
530                         udelay(100);
531                 }
532         } else
533                 udelay(100);
534
535         /* Turn on master enable */
536         cmd |= PCI_COMMAND_MASTER;
537         pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);
538
539         /* Disable RISC pause on FPM parity error. */
540         if (!IS_QLA2100(ha)) {
541                 WRT_REG_WORD(&reg->hccr, HCCR_DISABLE_PARITY_PAUSE);
542                 RD_REG_WORD(&reg->hccr);                /* PCI Posting. */
543         }
544
545         spin_unlock_irqrestore(&ha->hardware_lock, flags);
546 }
547
548 /**
549  * qla24xx_reset_risc() - Perform full reset of ISP24xx RISC.
550  * @ha: HA context
551  *
552  * Returns 0 on success.
553  */
554 static inline void
555 qla24xx_reset_risc(scsi_qla_host_t *ha)
556 {
557         unsigned long flags = 0;
558         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
559         uint32_t cnt, d2;
560         uint16_t wd;
561
562         spin_lock_irqsave(&ha->hardware_lock, flags);
563
564         /* Reset RISC. */
565         WRT_REG_DWORD(&reg->ctrl_status, CSRX_DMA_SHUTDOWN|MWB_4096_BYTES);
566         for (cnt = 0; cnt < 30000; cnt++) {
567                 if ((RD_REG_DWORD(&reg->ctrl_status) & CSRX_DMA_ACTIVE) == 0)
568                         break;
569
570                 udelay(10);
571         }
572
573         WRT_REG_DWORD(&reg->ctrl_status,
574             CSRX_ISP_SOFT_RESET|CSRX_DMA_SHUTDOWN|MWB_4096_BYTES);
575         pci_read_config_word(ha->pdev, PCI_COMMAND, &wd);
576
577         udelay(100);
578         /* Wait for firmware to complete NVRAM accesses. */
579         d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
580         for (cnt = 10000 ; cnt && d2; cnt--) {
581                 udelay(5);
582                 d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
583                 barrier();
584         }
585
586         /* Wait for soft-reset to complete. */
587         d2 = RD_REG_DWORD(&reg->ctrl_status);
588         for (cnt = 6000000 ; cnt && (d2 & CSRX_ISP_SOFT_RESET); cnt--) {
589                 udelay(5);
590                 d2 = RD_REG_DWORD(&reg->ctrl_status);
591                 barrier();
592         }
593
594         WRT_REG_DWORD(&reg->hccr, HCCRX_SET_RISC_RESET);
595         RD_REG_DWORD(&reg->hccr);
596
597         WRT_REG_DWORD(&reg->hccr, HCCRX_REL_RISC_PAUSE);
598         RD_REG_DWORD(&reg->hccr);
599
600         WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_RESET);
601         RD_REG_DWORD(&reg->hccr);
602
603         d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
604         for (cnt = 6000000 ; cnt && d2; cnt--) {
605                 udelay(5);
606                 d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
607                 barrier();
608         }
609
610         spin_unlock_irqrestore(&ha->hardware_lock, flags);
611 }
612
613 /**
614  * qla24xx_reset_chip() - Reset ISP24xx chip.
615  * @ha: HA context
616  *
617  * Returns 0 on success.
618  */
619 void
620 qla24xx_reset_chip(scsi_qla_host_t *ha)
621 {
622         ha->isp_ops.disable_intrs(ha);
623
624         /* Perform RISC reset. */
625         qla24xx_reset_risc(ha);
626 }
627
628 /**
629  * qla2x00_chip_diag() - Test chip for proper operation.
630  * @ha: HA context
631  *
632  * Returns 0 on success.
633  */
634 int
635 qla2x00_chip_diag(scsi_qla_host_t *ha)
636 {
637         int             rval;
638         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
639         unsigned long   flags = 0;
640         uint16_t        data;
641         uint32_t        cnt;
642         uint16_t        mb[5];
643
644         /* Assume a failed state */
645         rval = QLA_FUNCTION_FAILED;
646
647         DEBUG3(printk("scsi(%ld): Testing device at %lx.\n",
648             ha->host_no, (u_long)&reg->flash_address));
649
650         spin_lock_irqsave(&ha->hardware_lock, flags);
651
652         /* Reset ISP chip. */
653         WRT_REG_WORD(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
654
655         /*
656          * We need to have a delay here since the card will not respond while
657          * in reset causing an MCA on some architectures.
658          */
659         udelay(20);
660         data = qla2x00_debounce_register(&reg->ctrl_status);
661         for (cnt = 6000000 ; cnt && (data & CSR_ISP_SOFT_RESET); cnt--) {
662                 udelay(5);
663                 data = RD_REG_WORD(&reg->ctrl_status);
664                 barrier();
665         }
666
667         if (!cnt)
668                 goto chip_diag_failed;
669
670         DEBUG3(printk("scsi(%ld): Reset register cleared by chip reset\n",
671             ha->host_no));
672
673         /* Reset RISC processor. */
674         WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
675         WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
676
677         /* Workaround for QLA2312 PCI parity error */
678         if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
679                 data = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 0));
680                 for (cnt = 6000000; cnt && (data == MBS_BUSY); cnt--) {
681                         udelay(5);
682                         data = RD_MAILBOX_REG(ha, reg, 0);
683                         barrier();
684                 }
685         } else
686                 udelay(10);
687
688         if (!cnt)
689                 goto chip_diag_failed;
690
691         /* Check product ID of chip */
692         DEBUG3(printk("scsi(%ld): Checking product ID of chip\n", ha->host_no));
693
694         mb[1] = RD_MAILBOX_REG(ha, reg, 1);
695         mb[2] = RD_MAILBOX_REG(ha, reg, 2);
696         mb[3] = RD_MAILBOX_REG(ha, reg, 3);
697         mb[4] = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 4));
698         if (mb[1] != PROD_ID_1 || (mb[2] != PROD_ID_2 && mb[2] != PROD_ID_2a) ||
699             mb[3] != PROD_ID_3) {
700                 qla_printk(KERN_WARNING, ha,
701                     "Wrong product ID = 0x%x,0x%x,0x%x\n", mb[1], mb[2], mb[3]);
702
703                 goto chip_diag_failed;
704         }
705         ha->product_id[0] = mb[1];
706         ha->product_id[1] = mb[2];
707         ha->product_id[2] = mb[3];
708         ha->product_id[3] = mb[4];
709
710         /* Adjust fw RISC transfer size */
711         if (ha->request_q_length > 1024)
712                 ha->fw_transfer_size = REQUEST_ENTRY_SIZE * 1024;
713         else
714                 ha->fw_transfer_size = REQUEST_ENTRY_SIZE *
715                     ha->request_q_length;
716
717         if (IS_QLA2200(ha) &&
718             RD_MAILBOX_REG(ha, reg, 7) == QLA2200A_RISC_ROM_VER) {
719                 /* Limit firmware transfer size with a 2200A */
720                 DEBUG3(printk("scsi(%ld): Found QLA2200A chip.\n",
721                     ha->host_no));
722
723                 ha->device_type |= DT_ISP2200A;
724                 ha->fw_transfer_size = 128;
725         }
726
727         /* Wrap Incoming Mailboxes Test. */
728         spin_unlock_irqrestore(&ha->hardware_lock, flags);
729
730         DEBUG3(printk("scsi(%ld): Checking mailboxes.\n", ha->host_no));
731         rval = qla2x00_mbx_reg_test(ha);
732         if (rval) {
733                 DEBUG(printk("scsi(%ld): Failed mailbox send register test\n",
734                     ha->host_no));
735                 qla_printk(KERN_WARNING, ha,
736                     "Failed mailbox send register test\n");
737         }
738         else {
739                 /* Flag a successful rval */
740                 rval = QLA_SUCCESS;
741         }
742         spin_lock_irqsave(&ha->hardware_lock, flags);
743
744 chip_diag_failed:
745         if (rval)
746                 DEBUG2_3(printk("scsi(%ld): Chip diagnostics **** FAILED "
747                     "****\n", ha->host_no));
748
749         spin_unlock_irqrestore(&ha->hardware_lock, flags);
750
751         return (rval);
752 }
753
754 /**
755  * qla24xx_chip_diag() - Test ISP24xx for proper operation.
756  * @ha: HA context
757  *
758  * Returns 0 on success.
759  */
760 int
761 qla24xx_chip_diag(scsi_qla_host_t *ha)
762 {
763         int rval;
764
765         /* Perform RISC reset. */
766         qla24xx_reset_risc(ha);
767
768         ha->fw_transfer_size = REQUEST_ENTRY_SIZE * 1024;
769
770         rval = qla2x00_mbx_reg_test(ha);
771         if (rval) {
772                 DEBUG(printk("scsi(%ld): Failed mailbox send register test\n",
773                     ha->host_no));
774                 qla_printk(KERN_WARNING, ha,
775                     "Failed mailbox send register test\n");
776         } else {
777                 /* Flag a successful rval */
778                 rval = QLA_SUCCESS;
779         }
780
781         return rval;
782 }
783
784 void
785 qla2x00_alloc_fw_dump(scsi_qla_host_t *ha)
786 {
787         int rval;
788         uint32_t dump_size, fixed_size, mem_size, req_q_size, rsp_q_size,
789             eft_size;
790         dma_addr_t eft_dma;
791         void *eft;
792
793         if (ha->fw_dump) {
794                 qla_printk(KERN_WARNING, ha,
795                     "Firmware dump previously allocated.\n");
796                 return;
797         }
798
799         ha->fw_dumped = 0;
800         fixed_size = mem_size = eft_size = 0;
801         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
802                 fixed_size = sizeof(struct qla2100_fw_dump);
803         } else if (IS_QLA23XX(ha)) {
804                 fixed_size = offsetof(struct qla2300_fw_dump, data_ram);
805                 mem_size = (ha->fw_memory_size - 0x11000 + 1) *
806                     sizeof(uint16_t);
807         } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
808                 fixed_size = offsetof(struct qla24xx_fw_dump, ext_mem);
809                 mem_size = (ha->fw_memory_size - 0x100000 + 1) *
810                     sizeof(uint32_t);
811
812                 /* Allocate memory for Extended Trace Buffer. */
813                 eft = dma_alloc_coherent(&ha->pdev->dev, EFT_SIZE, &eft_dma,
814                     GFP_KERNEL);
815                 if (!eft) {
816                         qla_printk(KERN_WARNING, ha, "Unable to allocate "
817                             "(%d KB) for EFT.\n", EFT_SIZE / 1024);
818                         goto cont_alloc;
819                 }
820
821                 rval = qla2x00_trace_control(ha, TC_ENABLE, eft_dma,
822                     EFT_NUM_BUFFERS);
823                 if (rval) {
824                         qla_printk(KERN_WARNING, ha, "Unable to initialize "
825                             "EFT (%d).\n", rval);
826                         dma_free_coherent(&ha->pdev->dev, EFT_SIZE, eft,
827                             eft_dma);
828                         goto cont_alloc;
829                 }
830
831                 qla_printk(KERN_INFO, ha, "Allocated (%d KB) for EFT...\n",
832                     EFT_SIZE / 1024);
833
834                 eft_size = EFT_SIZE;
835                 memset(eft, 0, eft_size);
836                 ha->eft_dma = eft_dma;
837                 ha->eft = eft;
838         }
839 cont_alloc:
840         req_q_size = ha->request_q_length * sizeof(request_t);
841         rsp_q_size = ha->response_q_length * sizeof(response_t);
842
843         dump_size = offsetof(struct qla2xxx_fw_dump, isp);
844         dump_size += fixed_size + mem_size + req_q_size + rsp_q_size +
845             eft_size;
846
847         ha->fw_dump = vmalloc(dump_size);
848         if (!ha->fw_dump) {
849                 qla_printk(KERN_WARNING, ha, "Unable to allocate (%d KB) for "
850                     "firmware dump!!!\n", dump_size / 1024);
851
852                 if (ha->eft) {
853                         dma_free_coherent(&ha->pdev->dev, eft_size, ha->eft,
854                             ha->eft_dma);
855                         ha->eft = NULL;
856                         ha->eft_dma = 0;
857                 }
858                 return;
859         }
860
861         qla_printk(KERN_INFO, ha, "Allocated (%d KB) for firmware dump...\n",
862             dump_size / 1024);
863
864         ha->fw_dump_len = dump_size;
865         ha->fw_dump->signature[0] = 'Q';
866         ha->fw_dump->signature[1] = 'L';
867         ha->fw_dump->signature[2] = 'G';
868         ha->fw_dump->signature[3] = 'C';
869         ha->fw_dump->version = __constant_htonl(1);
870
871         ha->fw_dump->fixed_size = htonl(fixed_size);
872         ha->fw_dump->mem_size = htonl(mem_size);
873         ha->fw_dump->req_q_size = htonl(req_q_size);
874         ha->fw_dump->rsp_q_size = htonl(rsp_q_size);
875
876         ha->fw_dump->eft_size = htonl(eft_size);
877         ha->fw_dump->eft_addr_l = htonl(LSD(ha->eft_dma));
878         ha->fw_dump->eft_addr_h = htonl(MSD(ha->eft_dma));
879
880         ha->fw_dump->header_size =
881             htonl(offsetof(struct qla2xxx_fw_dump, isp));
882 }
883
884 /**
885  * qla2x00_resize_request_q() - Resize request queue given available ISP memory.
886  * @ha: HA context
887  *
888  * Returns 0 on success.
889  */
890 static void
891 qla2x00_resize_request_q(scsi_qla_host_t *ha)
892 {
893         int rval;
894         uint16_t fw_iocb_cnt = 0;
895         uint16_t request_q_length = REQUEST_ENTRY_CNT_2XXX_EXT_MEM;
896         dma_addr_t request_dma;
897         request_t *request_ring;
898
899         /* Valid only on recent ISPs. */
900         if (IS_QLA2100(ha) || IS_QLA2200(ha))
901                 return;
902
903         /* Retrieve IOCB counts available to the firmware. */
904         rval = qla2x00_get_resource_cnts(ha, NULL, NULL, NULL, &fw_iocb_cnt);
905         if (rval)
906                 return;
907         /* No point in continuing if current settings are sufficient. */
908         if (fw_iocb_cnt < 1024)
909                 return;
910         if (ha->request_q_length >= request_q_length)
911                 return;
912
913         /* Attempt to claim larger area for request queue. */
914         request_ring = dma_alloc_coherent(&ha->pdev->dev,
915             (request_q_length + 1) * sizeof(request_t), &request_dma,
916             GFP_KERNEL);
917         if (request_ring == NULL)
918                 return;
919
920         /* Resize successful, report extensions. */
921         qla_printk(KERN_INFO, ha, "Extended memory detected (%d KB)...\n",
922             (ha->fw_memory_size + 1) / 1024);
923         qla_printk(KERN_INFO, ha, "Resizing request queue depth "
924             "(%d -> %d)...\n", ha->request_q_length, request_q_length);
925
926         /* Clear old allocations. */
927         dma_free_coherent(&ha->pdev->dev,
928             (ha->request_q_length + 1) * sizeof(request_t), ha->request_ring,
929             ha->request_dma);
930
931         /* Begin using larger queue. */
932         ha->request_q_length = request_q_length;
933         ha->request_ring = request_ring;
934         ha->request_dma = request_dma;
935 }
936
937 /**
938  * qla2x00_setup_chip() - Load and start RISC firmware.
939  * @ha: HA context
940  *
941  * Returns 0 on success.
942  */
943 static int
944 qla2x00_setup_chip(scsi_qla_host_t *ha)
945 {
946         int rval;
947         uint32_t srisc_address = 0;
948
949         /* Load firmware sequences */
950         rval = ha->isp_ops.load_risc(ha, &srisc_address);
951         if (rval == QLA_SUCCESS) {
952                 DEBUG(printk("scsi(%ld): Verifying Checksum of loaded RISC "
953                     "code.\n", ha->host_no));
954
955                 rval = qla2x00_verify_checksum(ha, srisc_address);
956                 if (rval == QLA_SUCCESS) {
957                         /* Start firmware execution. */
958                         DEBUG(printk("scsi(%ld): Checksum OK, start "
959                             "firmware.\n", ha->host_no));
960
961                         rval = qla2x00_execute_fw(ha, srisc_address);
962                         /* Retrieve firmware information. */
963                         if (rval == QLA_SUCCESS && ha->fw_major_version == 0) {
964                                 qla2x00_get_fw_version(ha,
965                                     &ha->fw_major_version,
966                                     &ha->fw_minor_version,
967                                     &ha->fw_subminor_version,
968                                     &ha->fw_attributes, &ha->fw_memory_size);
969                                 qla2x00_resize_request_q(ha);
970
971                                 if (ql2xallocfwdump)
972                                         qla2x00_alloc_fw_dump(ha);
973                         }
974                 } else {
975                         DEBUG2(printk(KERN_INFO
976                             "scsi(%ld): ISP Firmware failed checksum.\n",
977                             ha->host_no));
978                 }
979         }
980
981         if (rval) {
982                 DEBUG2_3(printk("scsi(%ld): Setup chip **** FAILED ****.\n",
983                     ha->host_no));
984         }
985
986         return (rval);
987 }
988
989 /**
990  * qla2x00_init_response_q_entries() - Initializes response queue entries.
991  * @ha: HA context
992  *
993  * Beginning of request ring has initialization control block already built
994  * by nvram config routine.
995  *
996  * Returns 0 on success.
997  */
998 static void
999 qla2x00_init_response_q_entries(scsi_qla_host_t *ha)
1000 {
1001         uint16_t cnt;
1002         response_t *pkt;
1003
1004         pkt = ha->response_ring_ptr;
1005         for (cnt = 0; cnt < ha->response_q_length; cnt++) {
1006                 pkt->signature = RESPONSE_PROCESSED;
1007                 pkt++;
1008         }
1009
1010 }
1011
1012 /**
1013  * qla2x00_update_fw_options() - Read and process firmware options.
1014  * @ha: HA context
1015  *
1016  * Returns 0 on success.
1017  */
1018 void
1019 qla2x00_update_fw_options(scsi_qla_host_t *ha)
1020 {
1021         uint16_t swing, emphasis, tx_sens, rx_sens;
1022
1023         memset(ha->fw_options, 0, sizeof(ha->fw_options));
1024         qla2x00_get_fw_options(ha, ha->fw_options);
1025
1026         if (IS_QLA2100(ha) || IS_QLA2200(ha))
1027                 return;
1028
1029         /* Serial Link options. */
1030         DEBUG3(printk("scsi(%ld): Serial link options:\n",
1031             ha->host_no));
1032         DEBUG3(qla2x00_dump_buffer((uint8_t *)&ha->fw_seriallink_options,
1033             sizeof(ha->fw_seriallink_options)));
1034
1035         ha->fw_options[1] &= ~FO1_SET_EMPHASIS_SWING;
1036         if (ha->fw_seriallink_options[3] & BIT_2) {
1037                 ha->fw_options[1] |= FO1_SET_EMPHASIS_SWING;
1038
1039                 /*  1G settings */
1040                 swing = ha->fw_seriallink_options[2] & (BIT_2 | BIT_1 | BIT_0);
1041                 emphasis = (ha->fw_seriallink_options[2] &
1042                     (BIT_4 | BIT_3)) >> 3;
1043                 tx_sens = ha->fw_seriallink_options[0] &
1044                     (BIT_3 | BIT_2 | BIT_1 | BIT_0);
1045                 rx_sens = (ha->fw_seriallink_options[0] &
1046                     (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
1047                 ha->fw_options[10] = (emphasis << 14) | (swing << 8);
1048                 if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
1049                         if (rx_sens == 0x0)
1050                                 rx_sens = 0x3;
1051                         ha->fw_options[10] |= (tx_sens << 4) | rx_sens;
1052                 } else if (IS_QLA2322(ha) || IS_QLA6322(ha))
1053                         ha->fw_options[10] |= BIT_5 |
1054                             ((rx_sens & (BIT_1 | BIT_0)) << 2) |
1055                             (tx_sens & (BIT_1 | BIT_0));
1056
1057                 /*  2G settings */
1058                 swing = (ha->fw_seriallink_options[2] &
1059                     (BIT_7 | BIT_6 | BIT_5)) >> 5;
1060                 emphasis = ha->fw_seriallink_options[3] & (BIT_1 | BIT_0);
1061                 tx_sens = ha->fw_seriallink_options[1] &
1062                     (BIT_3 | BIT_2 | BIT_1 | BIT_0);
1063                 rx_sens = (ha->fw_seriallink_options[1] &
1064                     (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
1065                 ha->fw_options[11] = (emphasis << 14) | (swing << 8);
1066                 if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
1067                         if (rx_sens == 0x0)
1068                                 rx_sens = 0x3;
1069                         ha->fw_options[11] |= (tx_sens << 4) | rx_sens;
1070                 } else if (IS_QLA2322(ha) || IS_QLA6322(ha))
1071                         ha->fw_options[11] |= BIT_5 |
1072                             ((rx_sens & (BIT_1 | BIT_0)) << 2) |
1073                             (tx_sens & (BIT_1 | BIT_0));
1074         }
1075
1076         /* FCP2 options. */
1077         /*  Return command IOCBs without waiting for an ABTS to complete. */
1078         ha->fw_options[3] |= BIT_13;
1079
1080         /* LED scheme. */
1081         if (ha->flags.enable_led_scheme)
1082                 ha->fw_options[2] |= BIT_12;
1083
1084         /* Detect ISP6312. */
1085         if (IS_QLA6312(ha))
1086                 ha->fw_options[2] |= BIT_13;
1087
1088         /* Update firmware options. */
1089         qla2x00_set_fw_options(ha, ha->fw_options);
1090 }
1091
1092 void
1093 qla24xx_update_fw_options(scsi_qla_host_t *ha)
1094 {
1095         int rval;
1096
1097         /* Update Serial Link options. */
1098         if ((le16_to_cpu(ha->fw_seriallink_options24[0]) & BIT_0) == 0)
1099                 return;
1100
1101         rval = qla2x00_set_serdes_params(ha,
1102             le16_to_cpu(ha->fw_seriallink_options24[1]),
1103             le16_to_cpu(ha->fw_seriallink_options24[2]),
1104             le16_to_cpu(ha->fw_seriallink_options24[3]));
1105         if (rval != QLA_SUCCESS) {
1106                 qla_printk(KERN_WARNING, ha,
1107                     "Unable to update Serial Link options (%x).\n", rval);
1108         }
1109 }
1110
1111 void
1112 qla2x00_config_rings(struct scsi_qla_host *ha)
1113 {
1114         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1115
1116         /* Setup ring parameters in initialization control block. */
1117         ha->init_cb->request_q_outpointer = __constant_cpu_to_le16(0);
1118         ha->init_cb->response_q_inpointer = __constant_cpu_to_le16(0);
1119         ha->init_cb->request_q_length = cpu_to_le16(ha->request_q_length);
1120         ha->init_cb->response_q_length = cpu_to_le16(ha->response_q_length);
1121         ha->init_cb->request_q_address[0] = cpu_to_le32(LSD(ha->request_dma));
1122         ha->init_cb->request_q_address[1] = cpu_to_le32(MSD(ha->request_dma));
1123         ha->init_cb->response_q_address[0] = cpu_to_le32(LSD(ha->response_dma));
1124         ha->init_cb->response_q_address[1] = cpu_to_le32(MSD(ha->response_dma));
1125
1126         WRT_REG_WORD(ISP_REQ_Q_IN(ha, reg), 0);
1127         WRT_REG_WORD(ISP_REQ_Q_OUT(ha, reg), 0);
1128         WRT_REG_WORD(ISP_RSP_Q_IN(ha, reg), 0);
1129         WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), 0);
1130         RD_REG_WORD(ISP_RSP_Q_OUT(ha, reg));            /* PCI Posting. */
1131 }
1132
1133 void
1134 qla24xx_config_rings(struct scsi_qla_host *ha)
1135 {
1136         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1137         struct init_cb_24xx *icb;
1138
1139         /* Setup ring parameters in initialization control block. */
1140         icb = (struct init_cb_24xx *)ha->init_cb;
1141         icb->request_q_outpointer = __constant_cpu_to_le16(0);
1142         icb->response_q_inpointer = __constant_cpu_to_le16(0);
1143         icb->request_q_length = cpu_to_le16(ha->request_q_length);
1144         icb->response_q_length = cpu_to_le16(ha->response_q_length);
1145         icb->request_q_address[0] = cpu_to_le32(LSD(ha->request_dma));
1146         icb->request_q_address[1] = cpu_to_le32(MSD(ha->request_dma));
1147         icb->response_q_address[0] = cpu_to_le32(LSD(ha->response_dma));
1148         icb->response_q_address[1] = cpu_to_le32(MSD(ha->response_dma));
1149
1150         WRT_REG_DWORD(&reg->req_q_in, 0);
1151         WRT_REG_DWORD(&reg->req_q_out, 0);
1152         WRT_REG_DWORD(&reg->rsp_q_in, 0);
1153         WRT_REG_DWORD(&reg->rsp_q_out, 0);
1154         RD_REG_DWORD(&reg->rsp_q_out);
1155 }
1156
1157 /**
1158  * qla2x00_init_rings() - Initializes firmware.
1159  * @ha: HA context
1160  *
1161  * Beginning of request ring has initialization control block already built
1162  * by nvram config routine.
1163  *
1164  * Returns 0 on success.
1165  */
1166 static int
1167 qla2x00_init_rings(scsi_qla_host_t *ha)
1168 {
1169         int     rval;
1170         unsigned long flags = 0;
1171         int cnt;
1172
1173         spin_lock_irqsave(&ha->hardware_lock, flags);
1174
1175         /* Clear outstanding commands array. */
1176         for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++)
1177                 ha->outstanding_cmds[cnt] = NULL;
1178
1179         ha->current_outstanding_cmd = 0;
1180
1181         /* Clear RSCN queue. */
1182         ha->rscn_in_ptr = 0;
1183         ha->rscn_out_ptr = 0;
1184
1185         /* Initialize firmware. */
1186         ha->request_ring_ptr  = ha->request_ring;
1187         ha->req_ring_index    = 0;
1188         ha->req_q_cnt         = ha->request_q_length;
1189         ha->response_ring_ptr = ha->response_ring;
1190         ha->rsp_ring_index    = 0;
1191
1192         /* Initialize response queue entries */
1193         qla2x00_init_response_q_entries(ha);
1194
1195         ha->isp_ops.config_rings(ha);
1196
1197         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1198
1199         /* Update any ISP specific firmware options before initialization. */
1200         ha->isp_ops.update_fw_options(ha);
1201
1202         DEBUG(printk("scsi(%ld): Issue init firmware.\n", ha->host_no));
1203         rval = qla2x00_init_firmware(ha, ha->init_cb_size);
1204         if (rval) {
1205                 DEBUG2_3(printk("scsi(%ld): Init firmware **** FAILED ****.\n",
1206                     ha->host_no));
1207         } else {
1208                 DEBUG3(printk("scsi(%ld): Init firmware -- success.\n",
1209                     ha->host_no));
1210         }
1211
1212         return (rval);
1213 }
1214
1215 /**
1216  * qla2x00_fw_ready() - Waits for firmware ready.
1217  * @ha: HA context
1218  *
1219  * Returns 0 on success.
1220  */
1221 static int
1222 qla2x00_fw_ready(scsi_qla_host_t *ha)
1223 {
1224         int             rval;
1225         unsigned long   wtime, mtime;
1226         uint16_t        min_wait;       /* Minimum wait time if loop is down */
1227         uint16_t        wait_time;      /* Wait time if loop is coming ready */
1228         uint16_t        fw_state;
1229
1230         rval = QLA_SUCCESS;
1231
1232         /* 20 seconds for loop down. */
1233         min_wait = 20;
1234
1235         /*
1236          * Firmware should take at most one RATOV to login, plus 5 seconds for
1237          * our own processing.
1238          */
1239         if ((wait_time = (ha->retry_count*ha->login_timeout) + 5) < min_wait) {
1240                 wait_time = min_wait;
1241         }
1242
1243         /* Min wait time if loop down */
1244         mtime = jiffies + (min_wait * HZ);
1245
1246         /* wait time before firmware ready */
1247         wtime = jiffies + (wait_time * HZ);
1248
1249         /* Wait for ISP to finish LIP */
1250         if (!ha->flags.init_done)
1251                 qla_printk(KERN_INFO, ha, "Waiting for LIP to complete...\n");
1252
1253         DEBUG3(printk("scsi(%ld): Waiting for LIP to complete...\n",
1254             ha->host_no));
1255
1256         do {
1257                 rval = qla2x00_get_firmware_state(ha, &fw_state);
1258                 if (rval == QLA_SUCCESS) {
1259                         if (fw_state < FSTATE_LOSS_OF_SYNC) {
1260                                 ha->device_flags &= ~DFLG_NO_CABLE;
1261                         }
1262                         if (fw_state == FSTATE_READY) {
1263                                 DEBUG(printk("scsi(%ld): F/W Ready - OK \n",
1264                                     ha->host_no));
1265
1266                                 qla2x00_get_retry_cnt(ha, &ha->retry_count,
1267                                     &ha->login_timeout, &ha->r_a_tov);
1268
1269                                 rval = QLA_SUCCESS;
1270                                 break;
1271                         }
1272
1273                         rval = QLA_FUNCTION_FAILED;
1274
1275                         if (atomic_read(&ha->loop_down_timer) &&
1276                             fw_state != FSTATE_READY) {
1277                                 /* Loop down. Timeout on min_wait for states
1278                                  * other than Wait for Login.
1279                                  */
1280                                 if (time_after_eq(jiffies, mtime)) {
1281                                         qla_printk(KERN_INFO, ha,
1282                                             "Cable is unplugged...\n");
1283
1284                                         ha->device_flags |= DFLG_NO_CABLE;
1285                                         break;
1286                                 }
1287                         }
1288                 } else {
1289                         /* Mailbox cmd failed. Timeout on min_wait. */
1290                         if (time_after_eq(jiffies, mtime))
1291                                 break;
1292                 }
1293
1294                 if (time_after_eq(jiffies, wtime))
1295                         break;
1296
1297                 /* Delay for a while */
1298                 msleep(500);
1299
1300                 DEBUG3(printk("scsi(%ld): fw_state=%x curr time=%lx.\n",
1301                     ha->host_no, fw_state, jiffies));
1302         } while (1);
1303
1304         DEBUG(printk("scsi(%ld): fw_state=%x curr time=%lx.\n",
1305             ha->host_no, fw_state, jiffies));
1306
1307         if (rval) {
1308                 DEBUG2_3(printk("scsi(%ld): Firmware ready **** FAILED ****.\n",
1309                     ha->host_no));
1310         }
1311
1312         return (rval);
1313 }
1314
1315 /*
1316 *  qla2x00_configure_hba
1317 *      Setup adapter context.
1318 *
1319 * Input:
1320 *      ha = adapter state pointer.
1321 *
1322 * Returns:
1323 *      0 = success
1324 *
1325 * Context:
1326 *      Kernel context.
1327 */
1328 static int
1329 qla2x00_configure_hba(scsi_qla_host_t *ha)
1330 {
1331         int       rval;
1332         uint16_t      loop_id;
1333         uint16_t      topo;
1334         uint8_t       al_pa;
1335         uint8_t       area;
1336         uint8_t       domain;
1337         char            connect_type[22];
1338
1339         /* Get host addresses. */
1340         rval = qla2x00_get_adapter_id(ha,
1341             &loop_id, &al_pa, &area, &domain, &topo);
1342         if (rval != QLA_SUCCESS) {
1343                 if (LOOP_TRANSITION(ha) || atomic_read(&ha->loop_down_timer) ||
1344                     (rval == QLA_COMMAND_ERROR && loop_id == 0x7)) {
1345                         DEBUG2(printk("%s(%ld) Loop is in a transition state\n",
1346                             __func__, ha->host_no));
1347                 } else {
1348                         qla_printk(KERN_WARNING, ha,
1349                             "ERROR -- Unable to get host loop ID.\n");
1350                         set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
1351                 }
1352                 return (rval);
1353         }
1354
1355         if (topo == 4) {
1356                 qla_printk(KERN_INFO, ha,
1357                         "Cannot get topology - retrying.\n");
1358                 return (QLA_FUNCTION_FAILED);
1359         }
1360
1361         ha->loop_id = loop_id;
1362
1363         /* initialize */
1364         ha->min_external_loopid = SNS_FIRST_LOOP_ID;
1365         ha->operating_mode = LOOP;
1366
1367         switch (topo) {
1368         case 0:
1369                 DEBUG3(printk("scsi(%ld): HBA in NL topology.\n",
1370                     ha->host_no));
1371                 ha->current_topology = ISP_CFG_NL;
1372                 strcpy(connect_type, "(Loop)");
1373                 break;
1374
1375         case 1:
1376                 DEBUG3(printk("scsi(%ld): HBA in FL topology.\n",
1377                     ha->host_no));
1378                 ha->current_topology = ISP_CFG_FL;
1379                 strcpy(connect_type, "(FL_Port)");
1380                 break;
1381
1382         case 2:
1383                 DEBUG3(printk("scsi(%ld): HBA in N P2P topology.\n",
1384                     ha->host_no));
1385                 ha->operating_mode = P2P;
1386                 ha->current_topology = ISP_CFG_N;
1387                 strcpy(connect_type, "(N_Port-to-N_Port)");
1388                 break;
1389
1390         case 3:
1391                 DEBUG3(printk("scsi(%ld): HBA in F P2P topology.\n",
1392                     ha->host_no));
1393                 ha->operating_mode = P2P;
1394                 ha->current_topology = ISP_CFG_F;
1395                 strcpy(connect_type, "(F_Port)");
1396                 break;
1397
1398         default:
1399                 DEBUG3(printk("scsi(%ld): HBA in unknown topology %x. "
1400                     "Using NL.\n",
1401                     ha->host_no, topo));
1402                 ha->current_topology = ISP_CFG_NL;
1403                 strcpy(connect_type, "(Loop)");
1404                 break;
1405         }
1406
1407         /* Save Host port and loop ID. */
1408         /* byte order - Big Endian */
1409         ha->d_id.b.domain = domain;
1410         ha->d_id.b.area = area;
1411         ha->d_id.b.al_pa = al_pa;
1412
1413         if (!ha->flags.init_done)
1414                 qla_printk(KERN_INFO, ha,
1415                     "Topology - %s, Host Loop address 0x%x\n",
1416                     connect_type, ha->loop_id);
1417
1418         if (rval) {
1419                 DEBUG2_3(printk("scsi(%ld): FAILED.\n", ha->host_no));
1420         } else {
1421                 DEBUG3(printk("scsi(%ld): exiting normally.\n", ha->host_no));
1422         }
1423
1424         return(rval);
1425 }
1426
1427 /*
1428 * NVRAM configuration for ISP 2xxx
1429 *
1430 * Input:
1431 *      ha                = adapter block pointer.
1432 *
1433 * Output:
1434 *      initialization control block in response_ring
1435 *      host adapters parameters in host adapter block
1436 *
1437 * Returns:
1438 *      0 = success.
1439 */
1440 int
1441 qla2x00_nvram_config(scsi_qla_host_t *ha)
1442 {
1443         int             rval;
1444         uint8_t         chksum = 0;
1445         uint16_t        cnt;
1446         uint8_t         *dptr1, *dptr2;
1447         init_cb_t       *icb = ha->init_cb;
1448         nvram_t         *nv = (nvram_t *)ha->request_ring;
1449         uint8_t         *ptr = (uint8_t *)ha->request_ring;
1450         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1451
1452         rval = QLA_SUCCESS;
1453
1454         /* Determine NVRAM starting address. */
1455         ha->nvram_size = sizeof(nvram_t);
1456         ha->nvram_base = 0;
1457         if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA2300(ha))
1458                 if ((RD_REG_WORD(&reg->ctrl_status) >> 14) == 1)
1459                         ha->nvram_base = 0x80;
1460
1461         /* Get NVRAM data and calculate checksum. */
1462         ha->isp_ops.read_nvram(ha, ptr, ha->nvram_base, ha->nvram_size);
1463         for (cnt = 0, chksum = 0; cnt < ha->nvram_size; cnt++)
1464                 chksum += *ptr++;
1465
1466         DEBUG5(printk("scsi(%ld): Contents of NVRAM\n", ha->host_no));
1467         DEBUG5(qla2x00_dump_buffer((uint8_t *)ha->request_ring,
1468             ha->nvram_size));
1469
1470         /* Bad NVRAM data, set defaults parameters. */
1471         if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' ||
1472             nv->id[2] != 'P' || nv->id[3] != ' ' || nv->nvram_version < 1) {
1473                 /* Reset NVRAM data. */
1474                 qla_printk(KERN_WARNING, ha, "Inconsistent NVRAM detected: "
1475                     "checksum=0x%x id=%c version=0x%x.\n", chksum, nv->id[0],
1476                     nv->nvram_version);
1477                 qla_printk(KERN_WARNING, ha, "Falling back to functioning (yet "
1478                     "invalid -- WWPN) defaults.\n");
1479
1480                 /*
1481                  * Set default initialization control block.
1482                  */
1483                 memset(nv, 0, ha->nvram_size);
1484                 nv->parameter_block_version = ICB_VERSION;
1485
1486                 if (IS_QLA23XX(ha)) {
1487                         nv->firmware_options[0] = BIT_2 | BIT_1;
1488                         nv->firmware_options[1] = BIT_7 | BIT_5;
1489                         nv->add_firmware_options[0] = BIT_5;
1490                         nv->add_firmware_options[1] = BIT_5 | BIT_4;
1491                         nv->frame_payload_size = __constant_cpu_to_le16(2048);
1492                         nv->special_options[1] = BIT_7;
1493                 } else if (IS_QLA2200(ha)) {
1494                         nv->firmware_options[0] = BIT_2 | BIT_1;
1495                         nv->firmware_options[1] = BIT_7 | BIT_5;
1496                         nv->add_firmware_options[0] = BIT_5;
1497                         nv->add_firmware_options[1] = BIT_5 | BIT_4;
1498                         nv->frame_payload_size = __constant_cpu_to_le16(1024);
1499                 } else if (IS_QLA2100(ha)) {
1500                         nv->firmware_options[0] = BIT_3 | BIT_1;
1501                         nv->firmware_options[1] = BIT_5;
1502                         nv->frame_payload_size = __constant_cpu_to_le16(1024);
1503                 }
1504
1505                 nv->max_iocb_allocation = __constant_cpu_to_le16(256);
1506                 nv->execution_throttle = __constant_cpu_to_le16(16);
1507                 nv->retry_count = 8;
1508                 nv->retry_delay = 1;
1509
1510                 nv->port_name[0] = 33;
1511                 nv->port_name[3] = 224;
1512                 nv->port_name[4] = 139;
1513
1514                 nv->login_timeout = 4;
1515
1516                 /*
1517                  * Set default host adapter parameters
1518                  */
1519                 nv->host_p[1] = BIT_2;
1520                 nv->reset_delay = 5;
1521                 nv->port_down_retry_count = 8;
1522                 nv->max_luns_per_target = __constant_cpu_to_le16(8);
1523                 nv->link_down_timeout = 60;
1524
1525                 rval = 1;
1526         }
1527
1528 #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
1529         /*
1530          * The SN2 does not provide BIOS emulation which means you can't change
1531          * potentially bogus BIOS settings. Force the use of default settings
1532          * for link rate and frame size.  Hope that the rest of the settings
1533          * are valid.
1534          */
1535         if (ia64_platform_is("sn2")) {
1536                 nv->frame_payload_size = __constant_cpu_to_le16(2048);
1537                 if (IS_QLA23XX(ha))
1538                         nv->special_options[1] = BIT_7;
1539         }
1540 #endif
1541
1542         /* Reset Initialization control block */
1543         memset(icb, 0, ha->init_cb_size);
1544
1545         /*
1546          * Setup driver NVRAM options.
1547          */
1548         nv->firmware_options[0] |= (BIT_6 | BIT_1);
1549         nv->firmware_options[0] &= ~(BIT_5 | BIT_4);
1550         nv->firmware_options[1] |= (BIT_5 | BIT_0);
1551         nv->firmware_options[1] &= ~BIT_4;
1552
1553         if (IS_QLA23XX(ha)) {
1554                 nv->firmware_options[0] |= BIT_2;
1555                 nv->firmware_options[0] &= ~BIT_3;
1556                 nv->add_firmware_options[1] |= BIT_5 | BIT_4;
1557
1558                 if (IS_QLA2300(ha)) {
1559                         if (ha->fb_rev == FPM_2310) {
1560                                 strcpy(ha->model_number, "QLA2310");
1561                         } else {
1562                                 strcpy(ha->model_number, "QLA2300");
1563                         }
1564                 } else {
1565                         if (rval == 0 &&
1566                             memcmp(nv->model_number, BINZERO,
1567                                     sizeof(nv->model_number)) != 0) {
1568                                 char *st, *en;
1569
1570                                 strncpy(ha->model_number, nv->model_number,
1571                                     sizeof(nv->model_number));
1572                                 st = en = ha->model_number;
1573                                 en += sizeof(nv->model_number) - 1;
1574                                 while (en > st) {
1575                                         if (*en != 0x20 && *en != 0x00)
1576                                                 break;
1577                                         *en-- = '\0';
1578                                 }
1579                         } else {
1580                                 uint16_t        index;
1581
1582                                 index = (ha->pdev->subsystem_device & 0xff);
1583                                 if (index < QLA_MODEL_NAMES) {
1584                                         strcpy(ha->model_number,
1585                                             qla2x00_model_name[index * 2]);
1586                                         ha->model_desc =
1587                                             qla2x00_model_name[index * 2 + 1];
1588                                 } else {
1589                                         strcpy(ha->model_number, "QLA23xx");
1590                                 }
1591                         }
1592                 }
1593         } else if (IS_QLA2200(ha)) {
1594                 nv->firmware_options[0] |= BIT_2;
1595                 /*
1596                  * 'Point-to-point preferred, else loop' is not a safe
1597                  * connection mode setting.
1598                  */
1599                 if ((nv->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) ==
1600                     (BIT_5 | BIT_4)) {
1601                         /* Force 'loop preferred, else point-to-point'. */
1602                         nv->add_firmware_options[0] &= ~(BIT_6 | BIT_5 | BIT_4);
1603                         nv->add_firmware_options[0] |= BIT_5;
1604                 }
1605                 strcpy(ha->model_number, "QLA22xx");
1606         } else /*if (IS_QLA2100(ha))*/ {
1607                 strcpy(ha->model_number, "QLA2100");
1608         }
1609
1610         /*
1611          * Copy over NVRAM RISC parameter block to initialization control block.
1612          */
1613         dptr1 = (uint8_t *)icb;
1614         dptr2 = (uint8_t *)&nv->parameter_block_version;
1615         cnt = (uint8_t *)&icb->request_q_outpointer - (uint8_t *)&icb->version;
1616         while (cnt--)
1617                 *dptr1++ = *dptr2++;
1618
1619         /* Copy 2nd half. */
1620         dptr1 = (uint8_t *)icb->add_firmware_options;
1621         cnt = (uint8_t *)icb->reserved_3 - (uint8_t *)icb->add_firmware_options;
1622         while (cnt--)
1623                 *dptr1++ = *dptr2++;
1624
1625         /* Use alternate WWN? */
1626         if (nv->host_p[1] & BIT_7) {
1627                 memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
1628                 memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
1629         }
1630
1631         /* Prepare nodename */
1632         if ((icb->firmware_options[1] & BIT_6) == 0) {
1633                 /*
1634                  * Firmware will apply the following mask if the nodename was
1635                  * not provided.
1636                  */
1637                 memcpy(icb->node_name, icb->port_name, WWN_SIZE);
1638                 icb->node_name[0] &= 0xF0;
1639         }
1640
1641         /*
1642          * Set host adapter parameters.
1643          */
1644         if (nv->host_p[0] & BIT_7)
1645                 extended_error_logging = 1;
1646         ha->flags.disable_risc_code_load = ((nv->host_p[0] & BIT_4) ? 1 : 0);
1647         /* Always load RISC code on non ISP2[12]00 chips. */
1648         if (!IS_QLA2100(ha) && !IS_QLA2200(ha))
1649                 ha->flags.disable_risc_code_load = 0;
1650         ha->flags.enable_lip_reset = ((nv->host_p[1] & BIT_1) ? 1 : 0);
1651         ha->flags.enable_lip_full_login = ((nv->host_p[1] & BIT_2) ? 1 : 0);
1652         ha->flags.enable_target_reset = ((nv->host_p[1] & BIT_3) ? 1 : 0);
1653         ha->flags.enable_led_scheme = (nv->special_options[1] & BIT_4) ? 1 : 0;
1654         ha->flags.disable_serdes = 0;
1655
1656         ha->operating_mode =
1657             (icb->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) >> 4;
1658
1659         memcpy(ha->fw_seriallink_options, nv->seriallink_options,
1660             sizeof(ha->fw_seriallink_options));
1661
1662         /* save HBA serial number */
1663         ha->serial0 = icb->port_name[5];
1664         ha->serial1 = icb->port_name[6];
1665         ha->serial2 = icb->port_name[7];
1666         ha->node_name = icb->node_name;
1667         ha->port_name = icb->port_name;
1668
1669         icb->execution_throttle = __constant_cpu_to_le16(0xFFFF);
1670
1671         ha->retry_count = nv->retry_count;
1672
1673         /* Set minimum login_timeout to 4 seconds. */
1674         if (nv->login_timeout < ql2xlogintimeout)
1675                 nv->login_timeout = ql2xlogintimeout;
1676         if (nv->login_timeout < 4)
1677                 nv->login_timeout = 4;
1678         ha->login_timeout = nv->login_timeout;
1679         icb->login_timeout = nv->login_timeout;
1680
1681         /* Set minimum RATOV to 200 tenths of a second. */
1682         ha->r_a_tov = 200;
1683
1684         ha->loop_reset_delay = nv->reset_delay;
1685
1686         /* Link Down Timeout = 0:
1687          *
1688          *      When Port Down timer expires we will start returning
1689          *      I/O's to OS with "DID_NO_CONNECT".
1690          *
1691          * Link Down Timeout != 0:
1692          *
1693          *       The driver waits for the link to come up after link down
1694          *       before returning I/Os to OS with "DID_NO_CONNECT".
1695          */
1696         if (nv->link_down_timeout == 0) {
1697                 ha->loop_down_abort_time =
1698                     (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
1699         } else {
1700                 ha->link_down_timeout =  nv->link_down_timeout;
1701                 ha->loop_down_abort_time =
1702                     (LOOP_DOWN_TIME - ha->link_down_timeout);
1703         }
1704
1705         /*
1706          * Need enough time to try and get the port back.
1707          */
1708         ha->port_down_retry_count = nv->port_down_retry_count;
1709         if (qlport_down_retry)
1710                 ha->port_down_retry_count = qlport_down_retry;
1711         /* Set login_retry_count */
1712         ha->login_retry_count  = nv->retry_count;
1713         if (ha->port_down_retry_count == nv->port_down_retry_count &&
1714             ha->port_down_retry_count > 3)
1715                 ha->login_retry_count = ha->port_down_retry_count;
1716         else if (ha->port_down_retry_count > (int)ha->login_retry_count)
1717                 ha->login_retry_count = ha->port_down_retry_count;
1718         if (ql2xloginretrycount)
1719                 ha->login_retry_count = ql2xloginretrycount;
1720
1721         icb->lun_enables = __constant_cpu_to_le16(0);
1722         icb->command_resource_count = 0;
1723         icb->immediate_notify_resource_count = 0;
1724         icb->timeout = __constant_cpu_to_le16(0);
1725
1726         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
1727                 /* Enable RIO */
1728                 icb->firmware_options[0] &= ~BIT_3;
1729                 icb->add_firmware_options[0] &=
1730                     ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
1731                 icb->add_firmware_options[0] |= BIT_2;
1732                 icb->response_accumulation_timer = 3;
1733                 icb->interrupt_delay_timer = 5;
1734
1735                 ha->flags.process_response_queue = 1;
1736         } else {
1737                 /* Enable ZIO. */
1738                 if (!ha->flags.init_done) {
1739                         ha->zio_mode = icb->add_firmware_options[0] &
1740                             (BIT_3 | BIT_2 | BIT_1 | BIT_0);
1741                         ha->zio_timer = icb->interrupt_delay_timer ?
1742                             icb->interrupt_delay_timer: 2;
1743                 }
1744                 icb->add_firmware_options[0] &=
1745                     ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
1746                 ha->flags.process_response_queue = 0;
1747                 if (ha->zio_mode != QLA_ZIO_DISABLED) {
1748                         ha->zio_mode = QLA_ZIO_MODE_6;
1749
1750                         DEBUG2(printk("scsi(%ld): ZIO mode %d enabled; timer "
1751                             "delay (%d us).\n", ha->host_no, ha->zio_mode,
1752                             ha->zio_timer * 100));
1753                         qla_printk(KERN_INFO, ha,
1754                             "ZIO mode %d enabled; timer delay (%d us).\n",
1755                             ha->zio_mode, ha->zio_timer * 100);
1756
1757                         icb->add_firmware_options[0] |= (uint8_t)ha->zio_mode;
1758                         icb->interrupt_delay_timer = (uint8_t)ha->zio_timer;
1759                         ha->flags.process_response_queue = 1;
1760                 }
1761         }
1762
1763         if (rval) {
1764                 DEBUG2_3(printk(KERN_WARNING
1765                     "scsi(%ld): NVRAM configuration failed!\n", ha->host_no));
1766         }
1767         return (rval);
1768 }
1769
1770 static void
1771 qla2x00_rport_del(void *data)
1772 {
1773         fc_port_t *fcport = data;
1774         struct fc_rport *rport;
1775         unsigned long flags;
1776
1777         spin_lock_irqsave(&fcport->rport_lock, flags);
1778         rport = fcport->drport;
1779         fcport->drport = NULL;
1780         spin_unlock_irqrestore(&fcport->rport_lock, flags);
1781         if (rport)
1782                 fc_remote_port_delete(rport);
1783
1784 }
1785
1786 /**
1787  * qla2x00_alloc_fcport() - Allocate a generic fcport.
1788  * @ha: HA context
1789  * @flags: allocation flags
1790  *
1791  * Returns a pointer to the allocated fcport, or NULL, if none available.
1792  */
1793 fc_port_t *
1794 qla2x00_alloc_fcport(scsi_qla_host_t *ha, gfp_t flags)
1795 {
1796         fc_port_t *fcport;
1797
1798         fcport = kmalloc(sizeof(fc_port_t), flags);
1799         if (fcport == NULL)
1800                 return (fcport);
1801
1802         /* Setup fcport template structure. */
1803         memset(fcport, 0, sizeof (fc_port_t));
1804         fcport->ha = ha;
1805         fcport->port_type = FCT_UNKNOWN;
1806         fcport->loop_id = FC_NO_LOOP_ID;
1807         atomic_set(&fcport->state, FCS_UNCONFIGURED);
1808         fcport->flags = FCF_RLC_SUPPORT;
1809         fcport->supported_classes = FC_COS_UNSPECIFIED;
1810         spin_lock_init(&fcport->rport_lock);
1811
1812         return (fcport);
1813 }
1814
1815 /*
1816  * qla2x00_configure_loop
1817  *      Updates Fibre Channel Device Database with what is actually on loop.
1818  *
1819  * Input:
1820  *      ha                = adapter block pointer.
1821  *
1822  * Returns:
1823  *      0 = success.
1824  *      1 = error.
1825  *      2 = database was full and device was not configured.
1826  */
1827 static int
1828 qla2x00_configure_loop(scsi_qla_host_t *ha)
1829 {
1830         int  rval;
1831         unsigned long flags, save_flags;
1832
1833         rval = QLA_SUCCESS;
1834
1835         /* Get Initiator ID */
1836         if (test_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags)) {
1837                 rval = qla2x00_configure_hba(ha);
1838                 if (rval != QLA_SUCCESS) {
1839                         DEBUG(printk("scsi(%ld): Unable to configure HBA.\n",
1840                             ha->host_no));
1841                         return (rval);
1842                 }
1843         }
1844
1845         save_flags = flags = ha->dpc_flags;
1846         DEBUG(printk("scsi(%ld): Configure loop -- dpc flags =0x%lx\n",
1847             ha->host_no, flags));
1848
1849         /*
1850          * If we have both an RSCN and PORT UPDATE pending then handle them
1851          * both at the same time.
1852          */
1853         clear_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
1854         clear_bit(RSCN_UPDATE, &ha->dpc_flags);
1855
1856         /* Determine what we need to do */
1857         if (ha->current_topology == ISP_CFG_FL &&
1858             (test_bit(LOCAL_LOOP_UPDATE, &flags))) {
1859
1860                 ha->flags.rscn_queue_overflow = 1;
1861                 set_bit(RSCN_UPDATE, &flags);
1862
1863         } else if (ha->current_topology == ISP_CFG_F &&
1864             (test_bit(LOCAL_LOOP_UPDATE, &flags))) {
1865
1866                 ha->flags.rscn_queue_overflow = 1;
1867                 set_bit(RSCN_UPDATE, &flags);
1868                 clear_bit(LOCAL_LOOP_UPDATE, &flags);
1869
1870         } else if (ha->current_topology == ISP_CFG_N) {
1871                 clear_bit(RSCN_UPDATE, &flags);
1872
1873         } else if (!ha->flags.online ||
1874             (test_bit(ABORT_ISP_ACTIVE, &flags))) {
1875
1876                 ha->flags.rscn_queue_overflow = 1;
1877                 set_bit(RSCN_UPDATE, &flags);
1878                 set_bit(LOCAL_LOOP_UPDATE, &flags);
1879         }
1880
1881         if (test_bit(LOCAL_LOOP_UPDATE, &flags)) {
1882                 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
1883                         rval = QLA_FUNCTION_FAILED;
1884                 } else {
1885                         rval = qla2x00_configure_local_loop(ha);
1886                 }
1887         }
1888
1889         if (rval == QLA_SUCCESS && test_bit(RSCN_UPDATE, &flags)) {
1890                 if (LOOP_TRANSITION(ha)) {
1891                         rval = QLA_FUNCTION_FAILED;
1892                 } else {
1893                         rval = qla2x00_configure_fabric(ha);
1894                 }
1895         }
1896
1897         if (rval == QLA_SUCCESS) {
1898                 if (atomic_read(&ha->loop_down_timer) ||
1899                     test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
1900                         rval = QLA_FUNCTION_FAILED;
1901                 } else {
1902                         atomic_set(&ha->loop_state, LOOP_READY);
1903
1904                         DEBUG(printk("scsi(%ld): LOOP READY\n", ha->host_no));
1905                 }
1906         }
1907
1908         if (rval) {
1909                 DEBUG2_3(printk("%s(%ld): *** FAILED ***\n",
1910                     __func__, ha->host_no));
1911         } else {
1912                 DEBUG3(printk("%s: exiting normally\n", __func__));
1913         }
1914
1915         /* Restore state if a resync event occured during processing */
1916         if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
1917                 if (test_bit(LOCAL_LOOP_UPDATE, &save_flags))
1918                         set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
1919                 if (test_bit(RSCN_UPDATE, &save_flags))
1920                         set_bit(RSCN_UPDATE, &ha->dpc_flags);
1921         }
1922
1923         return (rval);
1924 }
1925
1926
1927
1928 /*
1929  * qla2x00_configure_local_loop
1930  *      Updates Fibre Channel Device Database with local loop devices.
1931  *
1932  * Input:
1933  *      ha = adapter block pointer.
1934  *
1935  * Returns:
1936  *      0 = success.
1937  */
1938 static int
1939 qla2x00_configure_local_loop(scsi_qla_host_t *ha)
1940 {
1941         int             rval, rval2;
1942         int             found_devs;
1943         int             found;
1944         fc_port_t       *fcport, *new_fcport;
1945
1946         uint16_t        index;
1947         uint16_t        entries;
1948         char            *id_iter;
1949         uint16_t        loop_id;
1950         uint8_t         domain, area, al_pa;
1951
1952         found_devs = 0;
1953         new_fcport = NULL;
1954         entries = MAX_FIBRE_DEVICES;
1955
1956         DEBUG3(printk("scsi(%ld): Getting FCAL position map\n", ha->host_no));
1957         DEBUG3(qla2x00_get_fcal_position_map(ha, NULL));
1958
1959         /* Get list of logged in devices. */
1960         memset(ha->gid_list, 0, GID_LIST_SIZE);
1961         rval = qla2x00_get_id_list(ha, ha->gid_list, ha->gid_list_dma,
1962             &entries);
1963         if (rval != QLA_SUCCESS)
1964                 goto cleanup_allocation;
1965
1966         DEBUG3(printk("scsi(%ld): Entries in ID list (%d)\n",
1967             ha->host_no, entries));
1968         DEBUG3(qla2x00_dump_buffer((uint8_t *)ha->gid_list,
1969             entries * sizeof(struct gid_list_info)));
1970
1971         /* Allocate temporary fcport for any new fcports discovered. */
1972         new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
1973         if (new_fcport == NULL) {
1974                 rval = QLA_MEMORY_ALLOC_FAILED;
1975                 goto cleanup_allocation;
1976         }
1977         new_fcport->flags &= ~FCF_FABRIC_DEVICE;
1978
1979         /*
1980          * Mark local devices that were present with FCF_DEVICE_LOST for now.
1981          */
1982         list_for_each_entry(fcport, &ha->fcports, list) {
1983                 if (atomic_read(&fcport->state) == FCS_ONLINE &&
1984                     fcport->port_type != FCT_BROADCAST &&
1985                     (fcport->flags & FCF_FABRIC_DEVICE) == 0) {
1986
1987                         DEBUG(printk("scsi(%ld): Marking port lost, "
1988                             "loop_id=0x%04x\n",
1989                             ha->host_no, fcport->loop_id));
1990
1991                         atomic_set(&fcport->state, FCS_DEVICE_LOST);
1992                         fcport->flags &= ~FCF_FARP_DONE;
1993                 }
1994         }
1995
1996         /* Add devices to port list. */
1997         id_iter = (char *)ha->gid_list;
1998         for (index = 0; index < entries; index++) {
1999                 domain = ((struct gid_list_info *)id_iter)->domain;
2000                 area = ((struct gid_list_info *)id_iter)->area;
2001                 al_pa = ((struct gid_list_info *)id_iter)->al_pa;
2002                 if (IS_QLA2100(ha) || IS_QLA2200(ha))
2003                         loop_id = (uint16_t)
2004                             ((struct gid_list_info *)id_iter)->loop_id_2100;
2005                 else
2006                         loop_id = le16_to_cpu(
2007                             ((struct gid_list_info *)id_iter)->loop_id);
2008                 id_iter += ha->gid_list_info_size;
2009
2010                 /* Bypass reserved domain fields. */
2011                 if ((domain & 0xf0) == 0xf0)
2012                         continue;
2013
2014                 /* Bypass if not same domain and area of adapter. */
2015                 if (area && domain &&
2016                     (area != ha->d_id.b.area || domain != ha->d_id.b.domain))
2017                         continue;
2018
2019                 /* Bypass invalid local loop ID. */
2020                 if (loop_id > LAST_LOCAL_LOOP_ID)
2021                         continue;
2022
2023                 /* Fill in member data. */
2024                 new_fcport->d_id.b.domain = domain;
2025                 new_fcport->d_id.b.area = area;
2026                 new_fcport->d_id.b.al_pa = al_pa;
2027                 new_fcport->loop_id = loop_id;
2028                 rval2 = qla2x00_get_port_database(ha, new_fcport, 0);
2029                 if (rval2 != QLA_SUCCESS) {
2030                         DEBUG2(printk("scsi(%ld): Failed to retrieve fcport "
2031                             "information -- get_port_database=%x, "
2032                             "loop_id=0x%04x\n",
2033                             ha->host_no, rval2, new_fcport->loop_id));
2034                         DEBUG2(printk("scsi(%ld): Scheduling resync...\n",
2035                             ha->host_no));
2036                         set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2037                         continue;
2038                 }
2039
2040                 /* Check for matching device in port list. */
2041                 found = 0;
2042                 fcport = NULL;
2043                 list_for_each_entry(fcport, &ha->fcports, list) {
2044                         if (memcmp(new_fcport->port_name, fcport->port_name,
2045                             WWN_SIZE))
2046                                 continue;
2047
2048                         fcport->flags &= ~(FCF_FABRIC_DEVICE |
2049                             FCF_PERSISTENT_BOUND);
2050                         fcport->loop_id = new_fcport->loop_id;
2051                         fcport->port_type = new_fcport->port_type;
2052                         fcport->d_id.b24 = new_fcport->d_id.b24;
2053                         memcpy(fcport->node_name, new_fcport->node_name,
2054                             WWN_SIZE);
2055
2056                         found++;
2057                         break;
2058                 }
2059
2060                 if (!found) {
2061                         /* New device, add to fcports list. */
2062                         new_fcport->flags &= ~FCF_PERSISTENT_BOUND;
2063                         list_add_tail(&new_fcport->list, &ha->fcports);
2064
2065                         /* Allocate a new replacement fcport. */
2066                         fcport = new_fcport;
2067                         new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
2068                         if (new_fcport == NULL) {
2069                                 rval = QLA_MEMORY_ALLOC_FAILED;
2070                                 goto cleanup_allocation;
2071                         }
2072                         new_fcport->flags &= ~FCF_FABRIC_DEVICE;
2073                 }
2074
2075                 qla2x00_update_fcport(ha, fcport);
2076
2077                 found_devs++;
2078         }
2079
2080 cleanup_allocation:
2081         kfree(new_fcport);
2082
2083         if (rval != QLA_SUCCESS) {
2084                 DEBUG2(printk("scsi(%ld): Configure local loop error exit: "
2085                     "rval=%x\n", ha->host_no, rval));
2086         }
2087
2088         if (found_devs) {
2089                 ha->device_flags |= DFLG_LOCAL_DEVICES;
2090                 ha->device_flags &= ~DFLG_RETRY_LOCAL_DEVICES;
2091         }
2092
2093         return (rval);
2094 }
2095
2096 static void
2097 qla2x00_probe_for_all_luns(scsi_qla_host_t *ha)
2098 {
2099         fc_port_t       *fcport;
2100
2101         qla2x00_mark_all_devices_lost(ha, 0);
2102         list_for_each_entry(fcport, &ha->fcports, list) {
2103                 if (fcport->port_type != FCT_TARGET)
2104                         continue;
2105
2106                 qla2x00_update_fcport(ha, fcport);
2107         }
2108 }
2109
2110 /*
2111  * qla2x00_update_fcport
2112  *      Updates device on list.
2113  *
2114  * Input:
2115  *      ha = adapter block pointer.
2116  *      fcport = port structure pointer.
2117  *
2118  * Return:
2119  *      0  - Success
2120  *  BIT_0 - error
2121  *
2122  * Context:
2123  *      Kernel context.
2124  */
2125 void
2126 qla2x00_update_fcport(scsi_qla_host_t *ha, fc_port_t *fcport)
2127 {
2128         fcport->ha = ha;
2129         fcport->login_retry = 0;
2130         fcport->port_login_retry_count = ha->port_down_retry_count *
2131             PORT_RETRY_TIME;
2132         atomic_set(&fcport->port_down_timer, ha->port_down_retry_count *
2133             PORT_RETRY_TIME);
2134         fcport->flags &= ~FCF_LOGIN_NEEDED;
2135
2136         atomic_set(&fcport->state, FCS_ONLINE);
2137
2138         if (ha->flags.init_done)
2139                 qla2x00_reg_remote_port(ha, fcport);
2140 }
2141
2142 void
2143 qla2x00_reg_remote_port(scsi_qla_host_t *ha, fc_port_t *fcport)
2144 {
2145         struct fc_rport_identifiers rport_ids;
2146         struct fc_rport *rport;
2147         unsigned long flags;
2148
2149         if (fcport->drport)
2150                 qla2x00_rport_del(fcport);
2151         if (fcport->rport)
2152                 return;
2153
2154         rport_ids.node_name = wwn_to_u64(fcport->node_name);
2155         rport_ids.port_name = wwn_to_u64(fcport->port_name);
2156         rport_ids.port_id = fcport->d_id.b.domain << 16 |
2157             fcport->d_id.b.area << 8 | fcport->d_id.b.al_pa;
2158         rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
2159         rport = fc_remote_port_add(ha->host, 0, &rport_ids);
2160         if (!rport) {
2161                 qla_printk(KERN_WARNING, ha,
2162                     "Unable to allocate fc remote port!\n");
2163                 return;
2164         }
2165         spin_lock_irqsave(&fcport->rport_lock, flags);
2166         fcport->rport = rport;
2167         *((fc_port_t **)rport->dd_data) = fcport;
2168         spin_unlock_irqrestore(&fcport->rport_lock, flags);
2169
2170         rport->supported_classes = fcport->supported_classes;
2171
2172         rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
2173         if (fcport->port_type == FCT_INITIATOR)
2174                 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
2175         if (fcport->port_type == FCT_TARGET)
2176                 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
2177         fc_remote_port_rolechg(rport, rport_ids.roles);
2178
2179         if (rport->scsi_target_id != -1 &&
2180             rport->scsi_target_id < ha->host->max_id)
2181                 fcport->os_target_id = rport->scsi_target_id;
2182 }
2183
2184 /*
2185  * qla2x00_configure_fabric
2186  *      Setup SNS devices with loop ID's.
2187  *
2188  * Input:
2189  *      ha = adapter block pointer.
2190  *
2191  * Returns:
2192  *      0 = success.
2193  *      BIT_0 = error
2194  */
2195 static int
2196 qla2x00_configure_fabric(scsi_qla_host_t *ha)
2197 {
2198         int     rval, rval2;
2199         fc_port_t       *fcport, *fcptemp;
2200         uint16_t        next_loopid;
2201         uint16_t        mb[MAILBOX_REGISTER_COUNT];
2202         uint16_t        loop_id;
2203         LIST_HEAD(new_fcports);
2204
2205         /* If FL port exists, then SNS is present */
2206         if (IS_QLA24XX(ha) || IS_QLA54XX(ha))
2207                 loop_id = NPH_F_PORT;
2208         else
2209                 loop_id = SNS_FL_PORT;
2210         rval = qla2x00_get_port_name(ha, loop_id, NULL, 0);
2211         if (rval != QLA_SUCCESS) {
2212                 DEBUG2(printk("scsi(%ld): MBC_GET_PORT_NAME Failed, No FL "
2213                     "Port\n", ha->host_no));
2214
2215                 ha->device_flags &= ~SWITCH_FOUND;
2216                 return (QLA_SUCCESS);
2217         }
2218
2219         /* Mark devices that need re-synchronization. */
2220         rval2 = qla2x00_device_resync(ha);
2221         if (rval2 == QLA_RSCNS_HANDLED) {
2222                 /* No point doing the scan, just continue. */
2223                 return (QLA_SUCCESS);
2224         }
2225         do {
2226                 /* FDMI support. */
2227                 if (ql2xfdmienable &&
2228                     test_and_clear_bit(REGISTER_FDMI_NEEDED, &ha->dpc_flags))
2229                         qla2x00_fdmi_register(ha);
2230
2231                 /* Ensure we are logged into the SNS. */
2232                 if (IS_QLA24XX(ha) || IS_QLA54XX(ha))
2233                         loop_id = NPH_SNS;
2234                 else
2235                         loop_id = SIMPLE_NAME_SERVER;
2236                 ha->isp_ops.fabric_login(ha, loop_id, 0xff, 0xff,
2237                     0xfc, mb, BIT_1 | BIT_0);
2238                 if (mb[0] != MBS_COMMAND_COMPLETE) {
2239                         DEBUG2(qla_printk(KERN_INFO, ha,
2240                             "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x "
2241                             "mb[2]=%x mb[6]=%x mb[7]=%x\n", loop_id,
2242                             mb[0], mb[1], mb[2], mb[6], mb[7]));
2243                         return (QLA_SUCCESS);
2244                 }
2245
2246                 if (test_and_clear_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags)) {
2247                         if (qla2x00_rft_id(ha)) {
2248                                 /* EMPTY */
2249                                 DEBUG2(printk("scsi(%ld): Register FC-4 "
2250                                     "TYPE failed.\n", ha->host_no));
2251                         }
2252                         if (qla2x00_rff_id(ha)) {
2253                                 /* EMPTY */
2254                                 DEBUG2(printk("scsi(%ld): Register FC-4 "
2255                                     "Features failed.\n", ha->host_no));
2256                         }
2257                         if (qla2x00_rnn_id(ha)) {
2258                                 /* EMPTY */
2259                                 DEBUG2(printk("scsi(%ld): Register Node Name "
2260                                     "failed.\n", ha->host_no));
2261                         } else if (qla2x00_rsnn_nn(ha)) {
2262                                 /* EMPTY */
2263                                 DEBUG2(printk("scsi(%ld): Register Symbolic "
2264                                     "Node Name failed.\n", ha->host_no));
2265                         }
2266                 }
2267
2268                 rval = qla2x00_find_all_fabric_devs(ha, &new_fcports);
2269                 if (rval != QLA_SUCCESS)
2270                         break;
2271
2272                 /*
2273                  * Logout all previous fabric devices marked lost, except
2274                  * tape devices.
2275                  */
2276                 list_for_each_entry(fcport, &ha->fcports, list) {
2277                         if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2278                                 break;
2279
2280                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0)
2281                                 continue;
2282
2283                         if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2284                                 qla2x00_mark_device_lost(ha, fcport,
2285                                     ql2xplogiabsentdevice, 0);
2286                                 if (fcport->loop_id != FC_NO_LOOP_ID &&
2287                                     (fcport->flags & FCF_TAPE_PRESENT) == 0 &&
2288                                     fcport->port_type != FCT_INITIATOR &&
2289                                     fcport->port_type != FCT_BROADCAST) {
2290                                         ha->isp_ops.fabric_logout(ha,
2291                                             fcport->loop_id,
2292                                             fcport->d_id.b.domain,
2293                                             fcport->d_id.b.area,
2294                                             fcport->d_id.b.al_pa);
2295                                         fcport->loop_id = FC_NO_LOOP_ID;
2296                                 }
2297                         }
2298                 }
2299
2300                 /* Starting free loop ID. */
2301                 next_loopid = ha->min_external_loopid;
2302
2303                 /*
2304                  * Scan through our port list and login entries that need to be
2305                  * logged in.
2306                  */
2307                 list_for_each_entry(fcport, &ha->fcports, list) {
2308                         if (atomic_read(&ha->loop_down_timer) ||
2309                             test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2310                                 break;
2311
2312                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 ||
2313                             (fcport->flags & FCF_LOGIN_NEEDED) == 0)
2314                                 continue;
2315
2316                         if (fcport->loop_id == FC_NO_LOOP_ID) {
2317                                 fcport->loop_id = next_loopid;
2318                                 rval = qla2x00_find_new_loop_id(ha, fcport);
2319                                 if (rval != QLA_SUCCESS) {
2320                                         /* Ran out of IDs to use */
2321                                         break;
2322                                 }
2323                         }
2324                         /* Login and update database */
2325                         qla2x00_fabric_dev_login(ha, fcport, &next_loopid);
2326                 }
2327
2328                 /* Exit if out of loop IDs. */
2329                 if (rval != QLA_SUCCESS) {
2330                         break;
2331                 }
2332
2333                 /*
2334                  * Login and add the new devices to our port list.
2335                  */
2336                 list_for_each_entry_safe(fcport, fcptemp, &new_fcports, list) {
2337                         if (atomic_read(&ha->loop_down_timer) ||
2338                             test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2339                                 break;
2340
2341                         /* Find a new loop ID to use. */
2342                         fcport->loop_id = next_loopid;
2343                         rval = qla2x00_find_new_loop_id(ha, fcport);
2344                         if (rval != QLA_SUCCESS) {
2345                                 /* Ran out of IDs to use */
2346                                 break;
2347                         }
2348
2349                         /* Remove device from the new list and add it to DB */
2350                         list_move_tail(&fcport->list, &ha->fcports);
2351
2352                         /* Login and update database */
2353                         qla2x00_fabric_dev_login(ha, fcport, &next_loopid);
2354                 }
2355         } while (0);
2356
2357         /* Free all new device structures not processed. */
2358         list_for_each_entry_safe(fcport, fcptemp, &new_fcports, list) {
2359                 list_del(&fcport->list);
2360                 kfree(fcport);
2361         }
2362
2363         if (rval) {
2364                 DEBUG2(printk("scsi(%ld): Configure fabric error exit: "
2365                     "rval=%d\n", ha->host_no, rval));
2366         }
2367
2368         return (rval);
2369 }
2370
2371
2372 /*
2373  * qla2x00_find_all_fabric_devs
2374  *
2375  * Input:
2376  *      ha = adapter block pointer.
2377  *      dev = database device entry pointer.
2378  *
2379  * Returns:
2380  *      0 = success.
2381  *
2382  * Context:
2383  *      Kernel context.
2384  */
2385 static int
2386 qla2x00_find_all_fabric_devs(scsi_qla_host_t *ha, struct list_head *new_fcports)
2387 {
2388         int             rval;
2389         uint16_t        loop_id;
2390         fc_port_t       *fcport, *new_fcport, *fcptemp;
2391         int             found;
2392
2393         sw_info_t       *swl;
2394         int             swl_idx;
2395         int             first_dev, last_dev;
2396         port_id_t       wrap, nxt_d_id;
2397
2398         rval = QLA_SUCCESS;
2399
2400         /* Try GID_PT to get device list, else GAN. */
2401         swl = kmalloc(sizeof(sw_info_t) * MAX_FIBRE_DEVICES, GFP_ATOMIC);
2402         if (swl == NULL) {
2403                 /*EMPTY*/
2404                 DEBUG2(printk("scsi(%ld): GID_PT allocations failed, fallback "
2405                     "on GA_NXT\n", ha->host_no));
2406         } else {
2407                 memset(swl, 0, sizeof(sw_info_t) * MAX_FIBRE_DEVICES);
2408                 if (qla2x00_gid_pt(ha, swl) != QLA_SUCCESS) {
2409                         kfree(swl);
2410                         swl = NULL;
2411                 } else if (qla2x00_gpn_id(ha, swl) != QLA_SUCCESS) {
2412                         kfree(swl);
2413                         swl = NULL;
2414                 } else if (qla2x00_gnn_id(ha, swl) != QLA_SUCCESS) {
2415                         kfree(swl);
2416                         swl = NULL;
2417                 }
2418         }
2419         swl_idx = 0;
2420
2421         /* Allocate temporary fcport for any new fcports discovered. */
2422         new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
2423         if (new_fcport == NULL) {
2424                 kfree(swl);
2425                 return (QLA_MEMORY_ALLOC_FAILED);
2426         }
2427         new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
2428
2429         /* Set start port ID scan at adapter ID. */
2430         first_dev = 1;
2431         last_dev = 0;
2432
2433         /* Starting free loop ID. */
2434         loop_id = ha->min_external_loopid;
2435         for (; loop_id <= ha->last_loop_id; loop_id++) {
2436                 if (qla2x00_is_reserved_id(ha, loop_id))
2437                         continue;
2438
2439                 if (atomic_read(&ha->loop_down_timer) || LOOP_TRANSITION(ha))
2440                         break;
2441
2442                 if (swl != NULL) {
2443                         if (last_dev) {
2444                                 wrap.b24 = new_fcport->d_id.b24;
2445                         } else {
2446                                 new_fcport->d_id.b24 = swl[swl_idx].d_id.b24;
2447                                 memcpy(new_fcport->node_name,
2448                                     swl[swl_idx].node_name, WWN_SIZE);
2449                                 memcpy(new_fcport->port_name,
2450                                     swl[swl_idx].port_name, WWN_SIZE);
2451
2452                                 if (swl[swl_idx].d_id.b.rsvd_1 != 0) {
2453                                         last_dev = 1;
2454                                 }
2455                                 swl_idx++;
2456                         }
2457                 } else {
2458                         /* Send GA_NXT to the switch */
2459                         rval = qla2x00_ga_nxt(ha, new_fcport);
2460                         if (rval != QLA_SUCCESS) {
2461                                 qla_printk(KERN_WARNING, ha,
2462                                     "SNS scan failed -- assuming zero-entry "
2463                                     "result...\n");
2464                                 list_for_each_entry_safe(fcport, fcptemp,
2465                                     new_fcports, list) {
2466                                         list_del(&fcport->list);
2467                                         kfree(fcport);
2468                                 }
2469                                 rval = QLA_SUCCESS;
2470                                 break;
2471                         }
2472                 }
2473
2474                 /* If wrap on switch device list, exit. */
2475                 if (first_dev) {
2476                         wrap.b24 = new_fcport->d_id.b24;
2477                         first_dev = 0;
2478                 } else if (new_fcport->d_id.b24 == wrap.b24) {
2479                         DEBUG2(printk("scsi(%ld): device wrap (%02x%02x%02x)\n",
2480                             ha->host_no, new_fcport->d_id.b.domain,
2481                             new_fcport->d_id.b.area, new_fcport->d_id.b.al_pa));
2482                         break;
2483                 }
2484
2485                 /* Bypass if host adapter. */
2486                 if (new_fcport->d_id.b24 == ha->d_id.b24)
2487                         continue;
2488
2489                 /* Bypass if same domain and area of adapter. */
2490                 if (((new_fcport->d_id.b24 & 0xffff00) ==
2491                     (ha->d_id.b24 & 0xffff00)) && ha->current_topology ==
2492                         ISP_CFG_FL)
2493                             continue;
2494
2495                 /* Bypass reserved domain fields. */
2496                 if ((new_fcport->d_id.b.domain & 0xf0) == 0xf0)
2497                         continue;
2498
2499                 /* Locate matching device in database. */
2500                 found = 0;
2501                 list_for_each_entry(fcport, &ha->fcports, list) {
2502                         if (memcmp(new_fcport->port_name, fcport->port_name,
2503                             WWN_SIZE))
2504                                 continue;
2505
2506                         found++;
2507
2508                         /*
2509                          * If address the same and state FCS_ONLINE, nothing
2510                          * changed.
2511                          */
2512                         if (fcport->d_id.b24 == new_fcport->d_id.b24 &&
2513                             atomic_read(&fcport->state) == FCS_ONLINE) {
2514                                 break;
2515                         }
2516
2517                         /*
2518                          * If device was not a fabric device before.
2519                          */
2520                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0) {
2521                                 fcport->d_id.b24 = new_fcport->d_id.b24;
2522                                 fcport->loop_id = FC_NO_LOOP_ID;
2523                                 fcport->flags |= (FCF_FABRIC_DEVICE |
2524                                     FCF_LOGIN_NEEDED);
2525                                 fcport->flags &= ~FCF_PERSISTENT_BOUND;
2526                                 break;
2527                         }
2528
2529                         /*
2530                          * Port ID changed or device was marked to be updated;
2531                          * Log it out if still logged in and mark it for
2532                          * relogin later.
2533                          */
2534                         fcport->d_id.b24 = new_fcport->d_id.b24;
2535                         fcport->flags |= FCF_LOGIN_NEEDED;
2536                         if (fcport->loop_id != FC_NO_LOOP_ID &&
2537                             (fcport->flags & FCF_TAPE_PRESENT) == 0 &&
2538                             fcport->port_type != FCT_INITIATOR &&
2539                             fcport->port_type != FCT_BROADCAST) {
2540                                 ha->isp_ops.fabric_logout(ha, fcport->loop_id,
2541                                     fcport->d_id.b.domain, fcport->d_id.b.area,
2542                                     fcport->d_id.b.al_pa);
2543                                 fcport->loop_id = FC_NO_LOOP_ID;
2544                         }
2545
2546                         break;
2547                 }
2548
2549                 if (found)
2550                         continue;
2551
2552                 /* If device was not in our fcports list, then add it. */
2553                 list_add_tail(&new_fcport->list, new_fcports);
2554
2555                 /* Allocate a new replacement fcport. */
2556                 nxt_d_id.b24 = new_fcport->d_id.b24;
2557                 new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
2558                 if (new_fcport == NULL) {
2559                         kfree(swl);
2560                         return (QLA_MEMORY_ALLOC_FAILED);
2561                 }
2562                 new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
2563                 new_fcport->d_id.b24 = nxt_d_id.b24;
2564         }
2565
2566         kfree(swl);
2567         kfree(new_fcport);
2568
2569         if (!list_empty(new_fcports))
2570                 ha->device_flags |= DFLG_FABRIC_DEVICES;
2571
2572         return (rval);
2573 }
2574
2575 /*
2576  * qla2x00_find_new_loop_id
2577  *      Scan through our port list and find a new usable loop ID.
2578  *
2579  * Input:
2580  *      ha:     adapter state pointer.
2581  *      dev:    port structure pointer.
2582  *
2583  * Returns:
2584  *      qla2x00 local function return status code.
2585  *
2586  * Context:
2587  *      Kernel context.
2588  */
2589 int
2590 qla2x00_find_new_loop_id(scsi_qla_host_t *ha, fc_port_t *dev)
2591 {
2592         int     rval;
2593         int     found;
2594         fc_port_t *fcport;
2595         uint16_t first_loop_id;
2596
2597         rval = QLA_SUCCESS;
2598
2599         /* Save starting loop ID. */
2600         first_loop_id = dev->loop_id;
2601
2602         for (;;) {
2603                 /* Skip loop ID if already used by adapter. */
2604                 if (dev->loop_id == ha->loop_id) {
2605                         dev->loop_id++;
2606                 }
2607
2608                 /* Skip reserved loop IDs. */
2609                 while (qla2x00_is_reserved_id(ha, dev->loop_id)) {
2610                         dev->loop_id++;
2611                 }
2612
2613                 /* Reset loop ID if passed the end. */
2614                 if (dev->loop_id > ha->last_loop_id) {
2615                         /* first loop ID. */
2616                         dev->loop_id = ha->min_external_loopid;
2617                 }
2618
2619                 /* Check for loop ID being already in use. */
2620                 found = 0;
2621                 fcport = NULL;
2622                 list_for_each_entry(fcport, &ha->fcports, list) {
2623                         if (fcport->loop_id == dev->loop_id && fcport != dev) {
2624                                 /* ID possibly in use */
2625                                 found++;
2626                                 break;
2627                         }
2628                 }
2629
2630                 /* If not in use then it is free to use. */
2631                 if (!found) {
2632                         break;
2633                 }
2634
2635                 /* ID in use. Try next value. */
2636                 dev->loop_id++;
2637
2638                 /* If wrap around. No free ID to use. */
2639                 if (dev->loop_id == first_loop_id) {
2640                         dev->loop_id = FC_NO_LOOP_ID;
2641                         rval = QLA_FUNCTION_FAILED;
2642                         break;
2643                 }
2644         }
2645
2646         return (rval);
2647 }
2648
2649 /*
2650  * qla2x00_device_resync
2651  *      Marks devices in the database that needs resynchronization.
2652  *
2653  * Input:
2654  *      ha = adapter block pointer.
2655  *
2656  * Context:
2657  *      Kernel context.
2658  */
2659 static int
2660 qla2x00_device_resync(scsi_qla_host_t *ha)
2661 {
2662         int     rval;
2663         uint32_t mask;
2664         fc_port_t *fcport;
2665         uint32_t rscn_entry;
2666         uint8_t rscn_out_iter;
2667         uint8_t format;
2668         port_id_t d_id;
2669
2670         rval = QLA_RSCNS_HANDLED;
2671
2672         while (ha->rscn_out_ptr != ha->rscn_in_ptr ||
2673             ha->flags.rscn_queue_overflow) {
2674
2675                 rscn_entry = ha->rscn_queue[ha->rscn_out_ptr];
2676                 format = MSB(MSW(rscn_entry));
2677                 d_id.b.domain = LSB(MSW(rscn_entry));
2678                 d_id.b.area = MSB(LSW(rscn_entry));
2679                 d_id.b.al_pa = LSB(LSW(rscn_entry));
2680
2681                 DEBUG(printk("scsi(%ld): RSCN queue entry[%d] = "
2682                     "[%02x/%02x%02x%02x].\n",
2683                     ha->host_no, ha->rscn_out_ptr, format, d_id.b.domain,
2684                     d_id.b.area, d_id.b.al_pa));
2685
2686                 ha->rscn_out_ptr++;
2687                 if (ha->rscn_out_ptr == MAX_RSCN_COUNT)
2688                         ha->rscn_out_ptr = 0;
2689
2690                 /* Skip duplicate entries. */
2691                 for (rscn_out_iter = ha->rscn_out_ptr;
2692                     !ha->flags.rscn_queue_overflow &&
2693                     rscn_out_iter != ha->rscn_in_ptr;
2694                     rscn_out_iter = (rscn_out_iter ==
2695                         (MAX_RSCN_COUNT - 1)) ? 0: rscn_out_iter + 1) {
2696
2697                         if (rscn_entry != ha->rscn_queue[rscn_out_iter])
2698                                 break;
2699
2700                         DEBUG(printk("scsi(%ld): Skipping duplicate RSCN queue "
2701                             "entry found at [%d].\n", ha->host_no,
2702                             rscn_out_iter));
2703
2704                         ha->rscn_out_ptr = rscn_out_iter;
2705                 }
2706
2707                 /* Queue overflow, set switch default case. */
2708                 if (ha->flags.rscn_queue_overflow) {
2709                         DEBUG(printk("scsi(%ld): device_resync: rscn "
2710                             "overflow.\n", ha->host_no));
2711
2712                         format = 3;
2713                         ha->flags.rscn_queue_overflow = 0;
2714                 }
2715
2716                 switch (format) {
2717                 case 0:
2718                         mask = 0xffffff;
2719                         break;
2720                 case 1:
2721                         mask = 0xffff00;
2722                         break;
2723                 case 2:
2724                         mask = 0xff0000;
2725                         break;
2726                 default:
2727                         mask = 0x0;
2728                         d_id.b24 = 0;
2729                         ha->rscn_out_ptr = ha->rscn_in_ptr;
2730                         break;
2731                 }
2732
2733                 rval = QLA_SUCCESS;
2734
2735                 list_for_each_entry(fcport, &ha->fcports, list) {
2736                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 ||
2737                             (fcport->d_id.b24 & mask) != d_id.b24 ||
2738                             fcport->port_type == FCT_BROADCAST)
2739                                 continue;
2740
2741                         if (atomic_read(&fcport->state) == FCS_ONLINE) {
2742                                 if (format != 3 ||
2743                                     fcport->port_type != FCT_INITIATOR) {
2744                                         qla2x00_mark_device_lost(ha, fcport,
2745                                             0, 0);
2746                                 }
2747                         }
2748                         fcport->flags &= ~FCF_FARP_DONE;
2749                 }
2750         }
2751         return (rval);
2752 }
2753
2754 /*
2755  * qla2x00_fabric_dev_login
2756  *      Login fabric target device and update FC port database.
2757  *
2758  * Input:
2759  *      ha:             adapter state pointer.
2760  *      fcport:         port structure list pointer.
2761  *      next_loopid:    contains value of a new loop ID that can be used
2762  *                      by the next login attempt.
2763  *
2764  * Returns:
2765  *      qla2x00 local function return status code.
2766  *
2767  * Context:
2768  *      Kernel context.
2769  */
2770 static int
2771 qla2x00_fabric_dev_login(scsi_qla_host_t *ha, fc_port_t *fcport,
2772     uint16_t *next_loopid)
2773 {
2774         int     rval;
2775         int     retry;
2776         uint8_t opts;
2777
2778         rval = QLA_SUCCESS;
2779         retry = 0;
2780
2781         rval = qla2x00_fabric_login(ha, fcport, next_loopid);
2782         if (rval == QLA_SUCCESS) {
2783                 /* Send an ADISC to tape devices.*/
2784                 opts = 0;
2785                 if (fcport->flags & FCF_TAPE_PRESENT)
2786                         opts |= BIT_1;
2787                 rval = qla2x00_get_port_database(ha, fcport, opts);
2788                 if (rval != QLA_SUCCESS) {
2789                         ha->isp_ops.fabric_logout(ha, fcport->loop_id,
2790                             fcport->d_id.b.domain, fcport->d_id.b.area,
2791                             fcport->d_id.b.al_pa);
2792                         qla2x00_mark_device_lost(ha, fcport, 1, 0);
2793                 } else {
2794                         qla2x00_update_fcport(ha, fcport);
2795                 }
2796         }
2797
2798         return (rval);
2799 }
2800
2801 /*
2802  * qla2x00_fabric_login
2803  *      Issue fabric login command.
2804  *
2805  * Input:
2806  *      ha = adapter block pointer.
2807  *      device = pointer to FC device type structure.
2808  *
2809  * Returns:
2810  *      0 - Login successfully
2811  *      1 - Login failed
2812  *      2 - Initiator device
2813  *      3 - Fatal error
2814  */
2815 int
2816 qla2x00_fabric_login(scsi_qla_host_t *ha, fc_port_t *fcport,
2817     uint16_t *next_loopid)
2818 {
2819         int     rval;
2820         int     retry;
2821         uint16_t tmp_loopid;
2822         uint16_t mb[MAILBOX_REGISTER_COUNT];
2823
2824         retry = 0;
2825         tmp_loopid = 0;
2826
2827         for (;;) {
2828                 DEBUG(printk("scsi(%ld): Trying Fabric Login w/loop id 0x%04x "
2829                     "for port %02x%02x%02x.\n",
2830                     ha->host_no, fcport->loop_id, fcport->d_id.b.domain,
2831                     fcport->d_id.b.area, fcport->d_id.b.al_pa));
2832
2833                 /* Login fcport on switch. */
2834                 ha->isp_ops.fabric_login(ha, fcport->loop_id,
2835                     fcport->d_id.b.domain, fcport->d_id.b.area,
2836                     fcport->d_id.b.al_pa, mb, BIT_0);
2837                 if (mb[0] == MBS_PORT_ID_USED) {
2838                         /*
2839                          * Device has another loop ID.  The firmware team
2840                          * recommends the driver perform an implicit login with
2841                          * the specified ID again. The ID we just used is save
2842                          * here so we return with an ID that can be tried by
2843                          * the next login.
2844                          */
2845                         retry++;
2846                         tmp_loopid = fcport->loop_id;
2847                         fcport->loop_id = mb[1];
2848
2849                         DEBUG(printk("Fabric Login: port in use - next "
2850                             "loop id=0x%04x, port Id=%02x%02x%02x.\n",
2851                             fcport->loop_id, fcport->d_id.b.domain,
2852                             fcport->d_id.b.area, fcport->d_id.b.al_pa));
2853
2854                 } else if (mb[0] == MBS_COMMAND_COMPLETE) {
2855                         /*
2856                          * Login succeeded.
2857                          */
2858                         if (retry) {
2859                                 /* A retry occurred before. */
2860                                 *next_loopid = tmp_loopid;
2861                         } else {
2862                                 /*
2863                                  * No retry occurred before. Just increment the
2864                                  * ID value for next login.
2865                                  */
2866                                 *next_loopid = (fcport->loop_id + 1);
2867                         }
2868
2869                         if (mb[1] & BIT_0) {
2870                                 fcport->port_type = FCT_INITIATOR;
2871                         } else {
2872                                 fcport->port_type = FCT_TARGET;
2873                                 if (mb[1] & BIT_1) {
2874                                         fcport->flags |= FCF_TAPE_PRESENT;
2875                                 }
2876                         }
2877
2878                         if (mb[10] & BIT_0)
2879                                 fcport->supported_classes |= FC_COS_CLASS2;
2880                         if (mb[10] & BIT_1)
2881                                 fcport->supported_classes |= FC_COS_CLASS3;
2882
2883                         rval = QLA_SUCCESS;
2884                         break;
2885                 } else if (mb[0] == MBS_LOOP_ID_USED) {
2886                         /*
2887                          * Loop ID already used, try next loop ID.
2888                          */
2889                         fcport->loop_id++;
2890                         rval = qla2x00_find_new_loop_id(ha, fcport);
2891                         if (rval != QLA_SUCCESS) {
2892                                 /* Ran out of loop IDs to use */
2893                                 break;
2894                         }
2895                 } else if (mb[0] == MBS_COMMAND_ERROR) {
2896                         /*
2897                          * Firmware possibly timed out during login. If NO
2898                          * retries are left to do then the device is declared
2899                          * dead.
2900                          */
2901                         *next_loopid = fcport->loop_id;
2902                         ha->isp_ops.fabric_logout(ha, fcport->loop_id,
2903                             fcport->d_id.b.domain, fcport->d_id.b.area,
2904                             fcport->d_id.b.al_pa);
2905                         qla2x00_mark_device_lost(ha, fcport, 1, 0);
2906
2907                         rval = 1;
2908                         break;
2909                 } else {
2910                         /*
2911                          * unrecoverable / not handled error
2912                          */
2913                         DEBUG2(printk("%s(%ld): failed=%x port_id=%02x%02x%02x "
2914                             "loop_id=%x jiffies=%lx.\n",
2915                             __func__, ha->host_no, mb[0],
2916                             fcport->d_id.b.domain, fcport->d_id.b.area,
2917                             fcport->d_id.b.al_pa, fcport->loop_id, jiffies));
2918
2919                         *next_loopid = fcport->loop_id;
2920                         ha->isp_ops.fabric_logout(ha, fcport->loop_id,
2921                             fcport->d_id.b.domain, fcport->d_id.b.area,
2922                             fcport->d_id.b.al_pa);
2923                         fcport->loop_id = FC_NO_LOOP_ID;
2924                         fcport->login_retry = 0;
2925
2926                         rval = 3;
2927                         break;
2928                 }
2929         }
2930
2931         return (rval);
2932 }
2933
2934 /*
2935  * qla2x00_local_device_login
2936  *      Issue local device login command.
2937  *
2938  * Input:
2939  *      ha = adapter block pointer.
2940  *      loop_id = loop id of device to login to.
2941  *
2942  * Returns (Where's the #define!!!!):
2943  *      0 - Login successfully
2944  *      1 - Login failed
2945  *      3 - Fatal error
2946  */
2947 int
2948 qla2x00_local_device_login(scsi_qla_host_t *ha, fc_port_t *fcport)
2949 {
2950         int             rval;
2951         uint16_t        mb[MAILBOX_REGISTER_COUNT];
2952
2953         memset(mb, 0, sizeof(mb));
2954         rval = qla2x00_login_local_device(ha, fcport, mb, BIT_0);
2955         if (rval == QLA_SUCCESS) {
2956                 /* Interrogate mailbox registers for any errors */
2957                 if (mb[0] == MBS_COMMAND_ERROR)
2958                         rval = 1;
2959                 else if (mb[0] == MBS_COMMAND_PARAMETER_ERROR)
2960                         /* device not in PCB table */
2961                         rval = 3;
2962         }
2963
2964         return (rval);
2965 }
2966
2967 /*
2968  *  qla2x00_loop_resync
2969  *      Resync with fibre channel devices.
2970  *
2971  * Input:
2972  *      ha = adapter block pointer.
2973  *
2974  * Returns:
2975  *      0 = success
2976  */
2977 int
2978 qla2x00_loop_resync(scsi_qla_host_t *ha)
2979 {
2980         int   rval;
2981         uint32_t wait_time;
2982
2983         rval = QLA_SUCCESS;
2984
2985         atomic_set(&ha->loop_state, LOOP_UPDATE);
2986         clear_bit(ISP_ABORT_RETRY, &ha->dpc_flags);
2987         if (ha->flags.online) {
2988                 if (!(rval = qla2x00_fw_ready(ha))) {
2989                         /* Wait at most MAX_TARGET RSCNs for a stable link. */
2990                         wait_time = 256;
2991                         do {
2992                                 atomic_set(&ha->loop_state, LOOP_UPDATE);
2993
2994                                 /* Issue a marker after FW becomes ready. */
2995                                 qla2x00_marker(ha, 0, 0, MK_SYNC_ALL);
2996                                 ha->marker_needed = 0;
2997
2998                                 /* Remap devices on Loop. */
2999                                 clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
3000
3001                                 qla2x00_configure_loop(ha);
3002                                 wait_time--;
3003                         } while (!atomic_read(&ha->loop_down_timer) &&
3004                                 !(test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) &&
3005                                 wait_time &&
3006                                 (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)));
3007                 }
3008         }
3009
3010         if (test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
3011                 return (QLA_FUNCTION_FAILED);
3012         }
3013
3014         if (rval) {
3015                 DEBUG2_3(printk("%s(): **** FAILED ****\n", __func__));
3016         }
3017
3018         return (rval);
3019 }
3020
3021 void
3022 qla2x00_rescan_fcports(scsi_qla_host_t *ha)
3023 {
3024         int rescan_done;
3025         fc_port_t *fcport;
3026
3027         rescan_done = 0;
3028         list_for_each_entry(fcport, &ha->fcports, list) {
3029                 if ((fcport->flags & FCF_RESCAN_NEEDED) == 0)
3030                         continue;
3031
3032                 qla2x00_update_fcport(ha, fcport);
3033                 fcport->flags &= ~FCF_RESCAN_NEEDED;
3034
3035                 rescan_done = 1;
3036         }
3037         qla2x00_probe_for_all_luns(ha);
3038 }
3039
3040 void
3041 qla2x00_update_fcports(scsi_qla_host_t *ha)
3042 {
3043         fc_port_t *fcport;
3044
3045         /* Go with deferred removal of rport references. */