2 * ipr.c -- driver for IBM Power Linux RAID adapters
4 * Written By: Brian King <brking@us.ibm.com>, IBM Corporation
6 * Copyright (C) 2003, 2004 IBM Corporation
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
27 * This driver is used to control the following SCSI adapters:
29 * IBM iSeries: 5702, 5703, 2780, 5709, 570A, 570B
31 * IBM pSeries: PCI-X Dual Channel Ultra 320 SCSI RAID Adapter
32 * PCI-X Dual Channel Ultra 320 SCSI Adapter
33 * PCI-X Dual Channel Ultra 320 SCSI RAID Enablement Card
34 * Embedded SCSI adapter on p615 and p655 systems
36 * Supported Hardware Features:
37 * - Ultra 320 SCSI controller
38 * - PCI-X host interface
39 * - Embedded PowerPC RISC Processor and Hardware XOR DMA Engine
40 * - Non-Volatile Write Cache
41 * - Supports attachment of non-RAID disks, tape, and optical devices
42 * - RAID Levels 0, 5, 10
44 * - Background Parity Checking
45 * - Background Data Scrubbing
46 * - Ability to increase the capacity of an existing RAID 5 disk array
50 * - Tagged command queuing
51 * - Adapter microcode download
53 * - SCSI device hot plug
58 #include <linux/init.h>
59 #include <linux/types.h>
60 #include <linux/errno.h>
61 #include <linux/kernel.h>
62 #include <linux/ioport.h>
63 #include <linux/delay.h>
64 #include <linux/pci.h>
65 #include <linux/wait.h>
66 #include <linux/spinlock.h>
67 #include <linux/sched.h>
68 #include <linux/interrupt.h>
69 #include <linux/blkdev.h>
70 #include <linux/firmware.h>
71 #include <linux/module.h>
72 #include <linux/moduleparam.h>
73 #include <linux/libata.h>
76 #include <asm/processor.h>
77 #include <scsi/scsi.h>
78 #include <scsi/scsi_host.h>
79 #include <scsi/scsi_tcq.h>
80 #include <scsi/scsi_eh.h>
81 #include <scsi/scsi_cmnd.h>
82 #include <scsi/scsi_transport.h>
88 static struct list_head ipr_ioa_head
= LIST_HEAD_INIT(ipr_ioa_head
);
89 static unsigned int ipr_log_level
= IPR_DEFAULT_LOG_LEVEL
;
90 static unsigned int ipr_max_speed
= 1;
91 static int ipr_testmode
= 0;
92 static unsigned int ipr_fastfail
= 0;
93 static unsigned int ipr_transop_timeout
= IPR_OPERATIONAL_TIMEOUT
;
94 static unsigned int ipr_enable_cache
= 1;
95 static unsigned int ipr_debug
= 0;
96 static int ipr_auto_create
= 1;
97 static DEFINE_SPINLOCK(ipr_driver_lock
);
99 /* This table describes the differences between DMA controller chips */
100 static const struct ipr_chip_cfg_t ipr_chip_cfg
[] = {
101 { /* Gemstone, Citrine, and Obsidian */
103 .cache_line_size
= 0x20,
105 .set_interrupt_mask_reg
= 0x0022C,
106 .clr_interrupt_mask_reg
= 0x00230,
107 .sense_interrupt_mask_reg
= 0x0022C,
108 .clr_interrupt_reg
= 0x00228,
109 .sense_interrupt_reg
= 0x00224,
110 .ioarrin_reg
= 0x00404,
111 .sense_uproc_interrupt_reg
= 0x00214,
112 .set_uproc_interrupt_reg
= 0x00214,
113 .clr_uproc_interrupt_reg
= 0x00218
116 { /* Snipe and Scamp */
118 .cache_line_size
= 0x20,
120 .set_interrupt_mask_reg
= 0x00288,
121 .clr_interrupt_mask_reg
= 0x0028C,
122 .sense_interrupt_mask_reg
= 0x00288,
123 .clr_interrupt_reg
= 0x00284,
124 .sense_interrupt_reg
= 0x00280,
125 .ioarrin_reg
= 0x00504,
126 .sense_uproc_interrupt_reg
= 0x00290,
127 .set_uproc_interrupt_reg
= 0x00290,
128 .clr_uproc_interrupt_reg
= 0x00294
133 static const struct ipr_chip_t ipr_chip
[] = {
134 { PCI_VENDOR_ID_MYLEX
, PCI_DEVICE_ID_IBM_GEMSTONE
, &ipr_chip_cfg
[0] },
135 { PCI_VENDOR_ID_IBM
, PCI_DEVICE_ID_IBM_CITRINE
, &ipr_chip_cfg
[0] },
136 { PCI_VENDOR_ID_ADAPTEC2
, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN
, &ipr_chip_cfg
[0] },
137 { PCI_VENDOR_ID_IBM
, PCI_DEVICE_ID_IBM_OBSIDIAN
, &ipr_chip_cfg
[0] },
138 { PCI_VENDOR_ID_IBM
, PCI_DEVICE_ID_IBM_SNIPE
, &ipr_chip_cfg
[1] },
139 { PCI_VENDOR_ID_ADAPTEC2
, PCI_DEVICE_ID_ADAPTEC2_SCAMP
, &ipr_chip_cfg
[1] }
142 static int ipr_max_bus_speeds
[] = {
143 IPR_80MBs_SCSI_RATE
, IPR_U160_SCSI_RATE
, IPR_U320_SCSI_RATE
146 MODULE_AUTHOR("Brian King <brking@us.ibm.com>");
147 MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver");
148 module_param_named(max_speed
, ipr_max_speed
, uint
, 0);
149 MODULE_PARM_DESC(max_speed
, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320");
150 module_param_named(log_level
, ipr_log_level
, uint
, 0);
151 MODULE_PARM_DESC(log_level
, "Set to 0 - 4 for increasing verbosity of device driver");
152 module_param_named(testmode
, ipr_testmode
, int, 0);
153 MODULE_PARM_DESC(testmode
, "DANGEROUS!!! Allows unsupported configurations");
154 module_param_named(fastfail
, ipr_fastfail
, int, 0);
155 MODULE_PARM_DESC(fastfail
, "Reduce timeouts and retries");
156 module_param_named(transop_timeout
, ipr_transop_timeout
, int, 0);
157 MODULE_PARM_DESC(transop_timeout
, "Time in seconds to wait for adapter to come operational (default: 300)");
158 module_param_named(enable_cache
, ipr_enable_cache
, int, 0);
159 MODULE_PARM_DESC(enable_cache
, "Enable adapter's non-volatile write cache (default: 1)");
160 module_param_named(debug
, ipr_debug
, int, 0);
161 MODULE_PARM_DESC(debug
, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)");
162 module_param_named(auto_create
, ipr_auto_create
, int, 0);
163 MODULE_PARM_DESC(auto_create
, "Auto-create single device RAID 0 arrays when initialized (default: 1)");
164 MODULE_LICENSE("GPL");
165 MODULE_VERSION(IPR_DRIVER_VERSION
);
167 /* A constant array of IOASCs/URCs/Error Messages */
169 struct ipr_error_table_t ipr_error_table
[] = {
171 "8155: An unknown error was received"},
173 "Soft underlength error"},
175 "Command to be cancelled not found"},
177 "Qualified success"},
179 "FFFE: Soft device bus error recovered by the IOA"},
181 "4101: Soft device bus fabric error"},
183 "FFF9: Device sector reassign successful"},
185 "FFF7: Media error recovered by device rewrite procedures"},
187 "7001: IOA sector reassignment successful"},
189 "FFF9: Soft media error. Sector reassignment recommended"},
191 "FFF7: Media error recovered by IOA rewrite procedures"},
193 "FF3D: Soft PCI bus error recovered by the IOA"},
195 "FFF6: Device hardware error recovered by the IOA"},
197 "FFF6: Device hardware error recovered by the device"},
199 "FF3D: Soft IOA error recovered by the IOA"},
201 "FFFA: Undefined device response recovered by the IOA"},
203 "FFF6: Device bus error, message or command phase"},
205 "FFFE: Task Management Function failed"},
207 "FFF6: Failure prediction threshold exceeded"},
209 "8009: Impending cache battery pack failure"},
211 "34FF: Disk device format in progress"},
213 "Synchronization required"},
215 "No ready, IOA shutdown"},
217 "Not ready, IOA has been shutdown"},
219 "3020: Storage subsystem configuration error"},
221 "FFF5: Medium error, data unreadable, recommend reassign"},
223 "7000: Medium error, data unreadable, do not reassign"},
225 "FFF3: Disk media format bad"},
227 "3002: Addressed device failed to respond to selection"},
229 "3100: Device bus error"},
231 "3109: IOA timed out a device command"},
233 "3120: SCSI bus is not operational"},
235 "4100: Hard device bus fabric error"},
237 "9000: IOA reserved area data check"},
239 "9001: IOA reserved area invalid data pattern"},
241 "9002: IOA reserved area LRC error"},
243 "102E: Out of alternate sectors for disk storage"},
245 "FFF4: Data transfer underlength error"},
247 "FFF4: Data transfer overlength error"},
249 "3400: Logical unit failure"},
251 "FFF4: Device microcode is corrupt"},
253 "8150: PCI bus error"},
255 "Unsupported device bus message received"},
257 "FFF4: Disk device problem"},
259 "8150: Permanent IOA failure"},
261 "3010: Disk device returned wrong response to IOA"},
263 "8151: IOA microcode error"},
265 "Device bus status error"},
267 "8157: IOA error requiring IOA reset to recover"},
269 "ATA device status error"},
271 "Message reject received from the device"},
273 "8008: A permanent cache battery pack failure occurred"},
275 "9090: Disk unit has been modified after the last known status"},
277 "9081: IOA detected device error"},
279 "9082: IOA detected device error"},
281 "3110: Device bus error, message or command phase"},
283 "3110: SAS Command / Task Management Function failed"},
285 "9091: Incorrect hardware configuration change has been detected"},
287 "9073: Invalid multi-adapter configuration"},
289 "4010: Incorrect connection between cascaded expanders"},
291 "4020: Connections exceed IOA design limits"},
293 "4030: Incorrect multipath connection"},
295 "4110: Unsupported enclosure function"},
297 "FFF4: Command to logical unit failed"},
299 "Illegal request, invalid request type or request packet"},
301 "Illegal request, invalid resource handle"},
303 "Illegal request, commands not allowed to this device"},
305 "Illegal request, command not allowed to a secondary adapter"},
307 "Illegal request, invalid field in parameter list"},
309 "Illegal request, parameter not supported"},
311 "Illegal request, parameter value invalid"},
313 "Illegal request, command sequence error"},
315 "Illegal request, dual adapter support not enabled"},
317 "9031: Array protection temporarily suspended, protection resuming"},
319 "9040: Array protection temporarily suspended, protection resuming"},
321 "3140: Device bus not ready to ready transition"},
323 "FFFB: SCSI bus was reset"},
325 "FFFE: SCSI bus transition to single ended"},
327 "FFFE: SCSI bus transition to LVD"},
329 "FFFB: SCSI bus was reset by another initiator"},
331 "3029: A device replacement has occurred"},
333 "9051: IOA cache data exists for a missing or failed device"},
335 "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"},
337 "9025: Disk unit is not supported at its physical location"},
339 "3020: IOA detected a SCSI bus configuration error"},
341 "3150: SCSI bus configuration error"},
343 "9074: Asymmetric advanced function disk configuration"},
345 "4040: Incomplete multipath connection between IOA and enclosure"},
347 "4041: Incomplete multipath connection between enclosure and device"},
349 "9075: Incomplete multipath connection between IOA and remote IOA"},
351 "9076: Configuration error, missing remote IOA"},
353 "4050: Enclosure does not support a required multipath function"},
355 "9041: Array protection temporarily suspended"},
357 "9042: Corrupt array parity detected on specified device"},
359 "9030: Array no longer protected due to missing or failed disk unit"},
361 "9071: Link operational transition"},
363 "9072: Link not operational transition"},
365 "9032: Array exposed but still protected"},
367 "4061: Multipath redundancy level got better"},
369 "4060: Multipath redundancy level got worse"},
371 "Failure due to other device"},
373 "9008: IOA does not support functions expected by devices"},
375 "9010: Cache data associated with attached devices cannot be found"},
377 "9011: Cache data belongs to devices other than those attached"},
379 "9020: Array missing 2 or more devices with only 1 device present"},
381 "9021: Array missing 2 or more devices with 2 or more devices present"},
383 "9022: Exposed array is missing a required device"},
385 "9023: Array member(s) not at required physical locations"},
387 "9024: Array not functional due to present hardware configuration"},
389 "9026: Array not functional due to present hardware configuration"},
391 "9027: Array is missing a device and parity is out of sync"},
393 "9028: Maximum number of arrays already exist"},
395 "9050: Required cache data cannot be located for a disk unit"},
397 "9052: Cache data exists for a device that has been modified"},
399 "9054: IOA resources not available due to previous problems"},
401 "9092: Disk unit requires initialization before use"},
403 "9029: Incorrect hardware configuration change has been detected"},
405 "9060: One or more disk pairs are missing from an array"},
407 "9061: One or more disks are missing from an array"},
409 "9062: One or more disks are missing from an array"},
411 "9063: Maximum number of functional arrays has been exceeded"},
413 "Aborted command, invalid descriptor"},
415 "Command terminated by host"}
418 static const struct ipr_ses_table_entry ipr_ses_table
[] = {
419 { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 },
420 { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 },
421 { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */
422 { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */
423 { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */
424 { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */
425 { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 },
426 { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 },
427 { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
428 { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
429 { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 },
430 { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 },
431 { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 }
435 * Function Prototypes
437 static int ipr_reset_alert(struct ipr_cmnd
*);
438 static void ipr_process_ccn(struct ipr_cmnd
*);
439 static void ipr_process_error(struct ipr_cmnd
*);
440 static void ipr_reset_ioa_job(struct ipr_cmnd
*);
441 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg
*,
442 enum ipr_shutdown_type
);
444 #ifdef CONFIG_SCSI_IPR_TRACE
446 * ipr_trc_hook - Add a trace entry to the driver trace
447 * @ipr_cmd: ipr command struct
449 * @add_data: additional data
454 static void ipr_trc_hook(struct ipr_cmnd
*ipr_cmd
,
455 u8 type
, u32 add_data
)
457 struct ipr_trace_entry
*trace_entry
;
458 struct ipr_ioa_cfg
*ioa_cfg
= ipr_cmd
->ioa_cfg
;
460 trace_entry
= &ioa_cfg
->trace
[ioa_cfg
->trace_index
++];
461 trace_entry
->time
= jiffies
;
462 trace_entry
->op_code
= ipr_cmd
->ioarcb
.cmd_pkt
.cdb
[0];
463 trace_entry
->type
= type
;
464 trace_entry
->ata_op_code
= ipr_cmd
->ioarcb
.add_data
.u
.regs
.command
;
465 trace_entry
->cmd_index
= ipr_cmd
->cmd_index
& 0xff;
466 trace_entry
->res_handle
= ipr_cmd
->ioarcb
.res_handle
;
467 trace_entry
->u
.add_data
= add_data
;
470 #define ipr_trc_hook(ipr_cmd, type, add_data) do { } while(0)
474 * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse
475 * @ipr_cmd: ipr command struct
480 static void ipr_reinit_ipr_cmnd(struct ipr_cmnd
*ipr_cmd
)
482 struct ipr_ioarcb
*ioarcb
= &ipr_cmd
->ioarcb
;
483 struct ipr_ioasa
*ioasa
= &ipr_cmd
->ioasa
;
485 memset(&ioarcb
->cmd_pkt
, 0, sizeof(struct ipr_cmd_pkt
));
486 ioarcb
->write_data_transfer_length
= 0;
487 ioarcb
->read_data_transfer_length
= 0;
488 ioarcb
->write_ioadl_len
= 0;
489 ioarcb
->read_ioadl_len
= 0;
491 ioasa
->residual_data_len
= 0;
492 ioasa
->u
.gata
.status
= 0;
494 ipr_cmd
->scsi_cmd
= NULL
;
496 ipr_cmd
->sense_buffer
[0] = 0;
497 ipr_cmd
->dma_use_sg
= 0;
501 * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block
502 * @ipr_cmd: ipr command struct
507 static void ipr_init_ipr_cmnd(struct ipr_cmnd
*ipr_cmd
)
509 ipr_reinit_ipr_cmnd(ipr_cmd
);
510 ipr_cmd
->u
.scratch
= 0;
511 ipr_cmd
->sibling
= NULL
;
512 init_timer(&ipr_cmd
->timer
);
516 * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block
517 * @ioa_cfg: ioa config struct
520 * pointer to ipr command struct
523 struct ipr_cmnd
*ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg
*ioa_cfg
)
525 struct ipr_cmnd
*ipr_cmd
;
527 ipr_cmd
= list_entry(ioa_cfg
->free_q
.next
, struct ipr_cmnd
, queue
);
528 list_del(&ipr_cmd
->queue
);
529 ipr_init_ipr_cmnd(ipr_cmd
);
535 * ipr_unmap_sglist - Unmap scatterlist if mapped
536 * @ioa_cfg: ioa config struct
537 * @ipr_cmd: ipr command struct
542 static void ipr_unmap_sglist(struct ipr_ioa_cfg
*ioa_cfg
,
543 struct ipr_cmnd
*ipr_cmd
)
545 struct scsi_cmnd
*scsi_cmd
= ipr_cmd
->scsi_cmd
;
547 if (ipr_cmd
->dma_use_sg
) {
548 if (scsi_cmd
->use_sg
> 0) {
549 pci_unmap_sg(ioa_cfg
->pdev
, scsi_cmd
->request_buffer
,
551 scsi_cmd
->sc_data_direction
);
553 pci_unmap_single(ioa_cfg
->pdev
, ipr_cmd
->dma_handle
,
554 scsi_cmd
->request_bufflen
,
555 scsi_cmd
->sc_data_direction
);
561 * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts
562 * @ioa_cfg: ioa config struct
563 * @clr_ints: interrupts to clear
565 * This function masks all interrupts on the adapter, then clears the
566 * interrupts specified in the mask
571 static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg
*ioa_cfg
,
574 volatile u32 int_reg
;
576 /* Stop new interrupts */
577 ioa_cfg
->allow_interrupts
= 0;
579 /* Set interrupt mask to stop all new interrupts */
580 writel(~0, ioa_cfg
->regs
.set_interrupt_mask_reg
);
582 /* Clear any pending interrupts */
583 writel(clr_ints
, ioa_cfg
->regs
.clr_interrupt_reg
);
584 int_reg
= readl(ioa_cfg
->regs
.sense_interrupt_reg
);
588 * ipr_save_pcix_cmd_reg - Save PCI-X command register
589 * @ioa_cfg: ioa config struct
592 * 0 on success / -EIO on failure
594 static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg
*ioa_cfg
)
596 int pcix_cmd_reg
= pci_find_capability(ioa_cfg
->pdev
, PCI_CAP_ID_PCIX
);
598 if (pcix_cmd_reg
== 0) {
599 dev_err(&ioa_cfg
->pdev
->dev
, "Failed to save PCI-X command register\n");
603 if (pci_read_config_word(ioa_cfg
->pdev
, pcix_cmd_reg
+ PCI_X_CMD
,
604 &ioa_cfg
->saved_pcix_cmd_reg
) != PCIBIOS_SUCCESSFUL
) {
605 dev_err(&ioa_cfg
->pdev
->dev
, "Failed to save PCI-X command register\n");
609 ioa_cfg
->saved_pcix_cmd_reg
|= PCI_X_CMD_DPERR_E
| PCI_X_CMD_ERO
;
614 * ipr_set_pcix_cmd_reg - Setup PCI-X command register
615 * @ioa_cfg: ioa config struct
618 * 0 on success / -EIO on failure
620 static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg
*ioa_cfg
)
622 int pcix_cmd_reg
= pci_find_capability(ioa_cfg
->pdev
, PCI_CAP_ID_PCIX
);
625 if (pci_write_config_word(ioa_cfg
->pdev
, pcix_cmd_reg
+ PCI_X_CMD
,
626 ioa_cfg
->saved_pcix_cmd_reg
) != PCIBIOS_SUCCESSFUL
) {
627 dev_err(&ioa_cfg
->pdev
->dev
, "Failed to setup PCI-X command register\n");
631 dev_err(&ioa_cfg
->pdev
->dev
,
632 "Failed to setup PCI-X command register\n");
640 * ipr_sata_eh_done - done function for aborted SATA commands
641 * @ipr_cmd: ipr command struct
643 * This function is invoked for ops generated to SATA
644 * devices which are being aborted.
649 static void ipr_sata_eh_done(struct ipr_cmnd
*ipr_cmd
)
651 struct ipr_ioa_cfg
*ioa_cfg
= ipr_cmd
->ioa_cfg
;
652 struct ata_queued_cmd
*qc
= ipr_cmd
->qc
;
653 struct ipr_sata_port
*sata_port
= qc
->ap
->private_data
;
655 qc
->err_mask
|= AC_ERR_OTHER
;
656 sata_port
->ioasa
.status
|= ATA_BUSY
;
657 list_add_tail(&ipr_cmd
->queue
, &ioa_cfg
->free_q
);
662 * ipr_scsi_eh_done - mid-layer done function for aborted ops
663 * @ipr_cmd: ipr command struct
665 * This function is invoked by the interrupt handler for
666 * ops generated by the SCSI mid-layer which are being aborted.
671 static void ipr_scsi_eh_done(struct ipr_cmnd
*ipr_cmd
)
673 struct ipr_ioa_cfg
*ioa_cfg
= ipr_cmd
->ioa_cfg
;
674 struct scsi_cmnd
*scsi_cmd
= ipr_cmd
->scsi_cmd
;
676 scsi_cmd
->result
|= (DID_ERROR
<< 16);
678 ipr_unmap_sglist(ioa_cfg
, ipr_cmd
);
679 scsi_cmd
->scsi_done(scsi_cmd
);
680 list_add_tail(&ipr_cmd
->queue
, &ioa_cfg
->free_q
);
684 * ipr_fail_all_ops - Fails all outstanding ops.
685 * @ioa_cfg: ioa config struct
687 * This function fails all outstanding ops.
692 static void ipr_fail_all_ops(struct ipr_ioa_cfg
*ioa_cfg
)
694 struct ipr_cmnd
*ipr_cmd
, *temp
;
697 list_for_each_entry_safe(ipr_cmd
, temp
, &ioa_cfg
->pending_q
, queue
) {
698 list_del(&ipr_cmd
->queue
);
700 ipr_cmd
->ioasa
.ioasc
= cpu_to_be32(IPR_IOASC_IOA_WAS_RESET
);
701 ipr_cmd
->ioasa
.ilid
= cpu_to_be32(IPR_DRIVER_ILID
);
703 if (ipr_cmd
->scsi_cmd
)
704 ipr_cmd
->done
= ipr_scsi_eh_done
;
705 else if (ipr_cmd
->qc
)
706 ipr_cmd
->done
= ipr_sata_eh_done
;
708 ipr_trc_hook(ipr_cmd
, IPR_TRACE_FINISH
, IPR_IOASC_IOA_WAS_RESET
);
709 del_timer(&ipr_cmd
->timer
);
710 ipr_cmd
->done(ipr_cmd
);
717 * ipr_do_req - Send driver initiated requests.
718 * @ipr_cmd: ipr command struct
719 * @done: done function
720 * @timeout_func: timeout function
721 * @timeout: timeout value
723 * This function sends the specified command to the adapter with the
724 * timeout given. The done function is invoked on command completion.
729 static void ipr_do_req(struct ipr_cmnd
*ipr_cmd
,
730 void (*done
) (struct ipr_cmnd
*),
731 void (*timeout_func
) (struct ipr_cmnd
*), u32 timeout
)
733 struct ipr_ioa_cfg
*ioa_cfg
= ipr_cmd
->ioa_cfg
;
735 list_add_tail(&ipr_cmd
->queue
, &ioa_cfg
->pending_q
);
737 ipr_cmd
->done
= done
;
739 ipr_cmd
->timer
.data
= (unsigned long) ipr_cmd
;
740 ipr_cmd
->timer
.expires
= jiffies
+ timeout
;
741 ipr_cmd
->timer
.function
= (void (*)(unsigned long))timeout_func
;
743 add_timer(&ipr_cmd
->timer
);
745 ipr_trc_hook(ipr_cmd
, IPR_TRACE_START
, 0);
748 writel(be32_to_cpu(ipr_cmd
->ioarcb
.ioarcb_host_pci_addr
),
749 ioa_cfg
->regs
.ioarrin_reg
);
753 * ipr_internal_cmd_done - Op done function for an internally generated op.
754 * @ipr_cmd: ipr command struct
756 * This function is the op done function for an internally generated,
757 * blocking op. It simply wakes the sleeping thread.
762 static void ipr_internal_cmd_done(struct ipr_cmnd
*ipr_cmd
)
764 if (ipr_cmd
->sibling
)
765 ipr_cmd
->sibling
= NULL
;
767 complete(&ipr_cmd
->completion
);
771 * ipr_send_blocking_cmd - Send command and sleep on its completion.
772 * @ipr_cmd: ipr command struct
773 * @timeout_func: function to invoke if command times out
779 static void ipr_send_blocking_cmd(struct ipr_cmnd
*ipr_cmd
,
780 void (*timeout_func
) (struct ipr_cmnd
*ipr_cmd
),
783 struct ipr_ioa_cfg
*ioa_cfg
= ipr_cmd
->ioa_cfg
;
785 init_completion(&ipr_cmd
->completion
);
786 ipr_do_req(ipr_cmd
, ipr_internal_cmd_done
, timeout_func
, timeout
);
788 spin_unlock_irq(ioa_cfg
->host
->host_lock
);
789 wait_for_completion(&ipr_cmd
->completion
);
790 spin_lock_irq(ioa_cfg
->host
->host_lock
);
794 * ipr_send_hcam - Send an HCAM to the adapter.
795 * @ioa_cfg: ioa config struct
797 * @hostrcb: hostrcb struct
799 * This function will send a Host Controlled Async command to the adapter.
800 * If HCAMs are currently not allowed to be issued to the adapter, it will
801 * place the hostrcb on the free queue.
806 static void ipr_send_hcam(struct ipr_ioa_cfg
*ioa_cfg
, u8 type
,
807 struct ipr_hostrcb
*hostrcb
)
809 struct ipr_cmnd
*ipr_cmd
;
810 struct ipr_ioarcb
*ioarcb
;
812 if (ioa_cfg
->allow_cmds
) {
813 ipr_cmd
= ipr_get_free_ipr_cmnd(ioa_cfg
);
814 list_add_tail(&ipr_cmd
->queue
, &ioa_cfg
->pending_q
);
815 list_add_tail(&hostrcb
->queue
, &ioa_cfg
->hostrcb_pending_q
);
817 ipr_cmd
->u
.hostrcb
= hostrcb
;
818 ioarcb
= &ipr_cmd
->ioarcb
;
820 ioarcb
->res_handle
= cpu_to_be32(IPR_IOA_RES_HANDLE
);
821 ioarcb
->cmd_pkt
.request_type
= IPR_RQTYPE_HCAM
;
822 ioarcb
->cmd_pkt
.cdb
[0] = IPR_HOST_CONTROLLED_ASYNC
;
823 ioarcb
->cmd_pkt
.cdb
[1] = type
;
824 ioarcb
->cmd_pkt
.cdb
[7] = (sizeof(hostrcb
->hcam
) >> 8) & 0xff;
825 ioarcb
->cmd_pkt
.cdb
[8] = sizeof(hostrcb
->hcam
) & 0xff;
827 ioarcb
->read_data_transfer_length
= cpu_to_be32(sizeof(hostrcb
->hcam
));
828 ioarcb
->read_ioadl_len
= cpu_to_be32(sizeof(struct ipr_ioadl_desc
));
829 ipr_cmd
->ioadl
[0].flags_and_data_len
=
830 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST
| sizeof(hostrcb
->hcam
));
831 ipr_cmd
->ioadl
[0].address
= cpu_to_be32(hostrcb
->hostrcb_dma
);
833 if (type
== IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE
)
834 ipr_cmd
->done
= ipr_process_ccn
;
836 ipr_cmd
->done
= ipr_process_error
;
838 ipr_trc_hook(ipr_cmd
, IPR_TRACE_START
, IPR_IOA_RES_ADDR
);
841 writel(be32_to_cpu(ipr_cmd
->ioarcb
.ioarcb_host_pci_addr
),
842 ioa_cfg
->regs
.ioarrin_reg
);
844 list_add_tail(&hostrcb
->queue
, &ioa_cfg
->hostrcb_free_q
);
849 * ipr_init_res_entry - Initialize a resource entry struct.
850 * @res: resource entry struct
855 static void ipr_init_res_entry(struct ipr_resource_entry
*res
)
857 res
->needs_sync_complete
= 0;
860 res
->del_from_ml
= 0;
861 res
->resetting_device
= 0;
863 res
->sata_port
= NULL
;
867 * ipr_handle_config_change - Handle a config change from the adapter
868 * @ioa_cfg: ioa config struct
874 static void ipr_handle_config_change(struct ipr_ioa_cfg
*ioa_cfg
,
875 struct ipr_hostrcb
*hostrcb
)
877 struct ipr_resource_entry
*res
= NULL
;
878 struct ipr_config_table_entry
*cfgte
;
881 cfgte
= &hostrcb
->hcam
.u
.ccn
.cfgte
;
883 list_for_each_entry(res
, &ioa_cfg
->used_res_q
, queue
) {
884 if (!memcmp(&res
->cfgte
.res_addr
, &cfgte
->res_addr
,
885 sizeof(cfgte
->res_addr
))) {
892 if (list_empty(&ioa_cfg
->free_res_q
)) {
893 ipr_send_hcam(ioa_cfg
,
894 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE
,
899 res
= list_entry(ioa_cfg
->free_res_q
.next
,
900 struct ipr_resource_entry
, queue
);
902 list_del(&res
->queue
);
903 ipr_init_res_entry(res
);
904 list_add_tail(&res
->queue
, &ioa_cfg
->used_res_q
);
907 memcpy(&res
->cfgte
, cfgte
, sizeof(struct ipr_config_table_entry
));
909 if (hostrcb
->hcam
.notify_type
== IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY
) {
911 res
->del_from_ml
= 1;
912 res
->cfgte
.res_handle
= IPR_INVALID_RES_HANDLE
;
913 if (ioa_cfg
->allow_ml_add_del
)
914 schedule_work(&ioa_cfg
->work_q
);
916 list_move_tail(&res
->queue
, &ioa_cfg
->free_res_q
);
917 } else if (!res
->sdev
) {
919 if (ioa_cfg
->allow_ml_add_del
)
920 schedule_work(&ioa_cfg
->work_q
);
923 ipr_send_hcam(ioa_cfg
, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE
, hostrcb
);
927 * ipr_process_ccn - Op done function for a CCN.
928 * @ipr_cmd: ipr command struct
930 * This function is the op done function for a configuration
931 * change notification host controlled async from the adapter.
936 static void ipr_process_ccn(struct ipr_cmnd
*ipr_cmd
)
938 struct ipr_ioa_cfg
*ioa_cfg
= ipr_cmd
->ioa_cfg
;
939 struct ipr_hostrcb
*hostrcb
= ipr_cmd
->u
.hostrcb
;
940 u32 ioasc
= be32_to_cpu(ipr_cmd
->ioasa
.ioasc
);
942 list_del(&hostrcb
->queue
);
943 list_add_tail(&ipr_cmd
->queue
, &ioa_cfg
->free_q
);
946 if (ioasc
!= IPR_IOASC_IOA_WAS_RESET
)
947 dev_err(&ioa_cfg
->pdev
->dev
,
948 "Host RCB failed with IOASC: 0x%08X\n", ioasc
);
950 ipr_send_hcam(ioa_cfg
, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE
, hostrcb
);
952 ipr_handle_config_change(ioa_cfg
, hostrcb
);
957 * ipr_log_vpd - Log the passed VPD to the error log.
958 * @vpd: vendor/product id/sn struct
963 static void ipr_log_vpd(struct ipr_vpd
*vpd
)
965 char buffer
[IPR_VENDOR_ID_LEN
+ IPR_PROD_ID_LEN
966 + IPR_SERIAL_NUM_LEN
];
968 memcpy(buffer
, vpd
->vpids
.vendor_id
, IPR_VENDOR_ID_LEN
);
969 memcpy(buffer
+ IPR_VENDOR_ID_LEN
, vpd
->vpids
.product_id
,
971 buffer
[IPR_VENDOR_ID_LEN
+ IPR_PROD_ID_LEN
] = '\0';
972 ipr_err("Vendor/Product ID: %s\n", buffer
);
974 memcpy(buffer
, vpd
->sn
, IPR_SERIAL_NUM_LEN
);
975 buffer
[IPR_SERIAL_NUM_LEN
] = '\0';
976 ipr_err(" Serial Number: %s\n", buffer
);
980 * ipr_log_ext_vpd - Log the passed extended VPD to the error log.
981 * @vpd: vendor/product id/sn/wwn struct
986 static void ipr_log_ext_vpd(struct ipr_ext_vpd
*vpd
)
988 ipr_log_vpd(&vpd
->vpd
);
989 ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd
->wwid
[0]),
990 be32_to_cpu(vpd
->wwid
[1]));
994 * ipr_log_enhanced_cache_error - Log a cache error.
995 * @ioa_cfg: ioa config struct
996 * @hostrcb: hostrcb struct
1001 static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg
*ioa_cfg
,
1002 struct ipr_hostrcb
*hostrcb
)
1004 struct ipr_hostrcb_type_12_error
*error
=
1005 &hostrcb
->hcam
.u
.error
.u
.type_12_error
;
1007 ipr_err("-----Current Configuration-----\n");
1008 ipr_err("Cache Directory Card Information:\n");
1009 ipr_log_ext_vpd(&error
->ioa_vpd
);
1010 ipr_err("Adapter Card Information:\n");
1011 ipr_log_ext_vpd(&error
->cfc_vpd
);
1013 ipr_err("-----Expected Configuration-----\n");
1014 ipr_err("Cache Directory Card Information:\n");
1015 ipr_log_ext_vpd(&error
->ioa_last_attached_to_cfc_vpd
);
1016 ipr_err("Adapter Card Information:\n");
1017 ipr_log_ext_vpd(&error
->cfc_last_attached_to_ioa_vpd
);
1019 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1020 be32_to_cpu(error
->ioa_data
[0]),
1021 be32_to_cpu(error
->ioa_data
[1]),
1022 be32_to_cpu(error
->ioa_data
[2]));
1026 * ipr_log_cache_error - Log a cache error.
1027 * @ioa_cfg: ioa config struct
1028 * @hostrcb: hostrcb struct
1033 static void ipr_log_cache_error(struct ipr_ioa_cfg
*ioa_cfg
,
1034 struct ipr_hostrcb
*hostrcb
)
1036 struct ipr_hostrcb_type_02_error
*error
=
1037 &hostrcb
->hcam
.u
.error
.u
.type_02_error
;
1039 ipr_err("-----Current Configuration-----\n");
1040 ipr_err("Cache Directory Card Information:\n");
1041 ipr_log_vpd(&error
->ioa_vpd
);
1042 ipr_err("Adapter Card Information:\n");
1043 ipr_log_vpd(&error
->cfc_vpd
);
1045 ipr_err("-----Expected Configuration-----\n");
1046 ipr_err("Cache Directory Card Information:\n");
1047 ipr_log_vpd(&error
->ioa_last_attached_to_cfc_vpd
);
1048 ipr_err("Adapter Card Information:\n");
1049 ipr_log_vpd(&error
->cfc_last_attached_to_ioa_vpd
);
1051 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1052 be32_to_cpu(error
->ioa_data
[0]),
1053 be32_to_cpu(error
->ioa_data
[1]),
1054 be32_to_cpu(error
->ioa_data
[2]));
1058 * ipr_log_enhanced_config_error - Log a configuration error.
1059 * @ioa_cfg: ioa config struct
1060 * @hostrcb: hostrcb struct
1065 static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg
*ioa_cfg
,
1066 struct ipr_hostrcb
*hostrcb
)
1068 int errors_logged
, i
;
1069 struct ipr_hostrcb_device_data_entry_enhanced
*dev_entry
;
1070 struct ipr_hostrcb_type_13_error
*error
;
1072 error
= &hostrcb
->hcam
.u
.error
.u
.type_13_error
;
1073 errors_logged
= be32_to_cpu(error
->errors_logged
);
1075 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1076 be32_to_cpu(error
->errors_detected
), errors_logged
);
1078 dev_entry
= error
->dev
;
1080 for (i
= 0; i
< errors_logged
; i
++, dev_entry
++) {
1083 ipr_phys_res_err(ioa_cfg
, dev_entry
->dev_res_addr
, "Device %d", i
+ 1);
1084 ipr_log_ext_vpd(&dev_entry
->vpd
);
1086 ipr_err("-----New Device Information-----\n");
1087 ipr_log_ext_vpd(&dev_entry
->new_vpd
);
1089 ipr_err("Cache Directory Card Information:\n");
1090 ipr_log_ext_vpd(&dev_entry
->ioa_last_with_dev_vpd
);
1092 ipr_err("Adapter Card Information:\n");
1093 ipr_log_ext_vpd(&dev_entry
->cfc_last_with_dev_vpd
);
1098 * ipr_log_config_error - Log a configuration error.
1099 * @ioa_cfg: ioa config struct
1100 * @hostrcb: hostrcb struct
1105 static void ipr_log_config_error(struct ipr_ioa_cfg
*ioa_cfg
,
1106 struct ipr_hostrcb
*hostrcb
)
1108 int errors_logged
, i
;
1109 struct ipr_hostrcb_device_data_entry
*dev_entry
;
1110 struct ipr_hostrcb_type_03_error
*error
;
1112 error
= &hostrcb
->hcam
.u
.error
.u
.type_03_error
;
1113 errors_logged
= be32_to_cpu(error
->errors_logged
);
1115 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1116 be32_to_cpu(error
->errors_detected
), errors_logged
);
1118 dev_entry
= error
->dev
;
1120 for (i
= 0; i
< errors_logged
; i
++, dev_entry
++) {
1123 ipr_phys_res_err(ioa_cfg
, dev_entry
->dev_res_addr
, "Device %d", i
+ 1);
1124 ipr_log_vpd(&dev_entry
->vpd
);
1126 ipr_err("-----New Device Information-----\n");
1127 ipr_log_vpd(&dev_entry
->new_vpd
);
1129 ipr_err("Cache Directory Card Information:\n");
1130 ipr_log_vpd(&dev_entry
->ioa_last_with_dev_vpd
);
1132 ipr_err("Adapter Card Information:\n");
1133 ipr_log_vpd(&dev_entry
->cfc_last_with_dev_vpd
);
1135 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n",
1136 be32_to_cpu(dev_entry
->ioa_data
[0]),
1137 be32_to_cpu(dev_entry
->ioa_data
[1]),
1138 be32_to_cpu(dev_entry
->ioa_data
[2]),
1139 be32_to_cpu(dev_entry
->ioa_data
[3]),
1140 be32_to_cpu(dev_entry
->ioa_data
[4]));
1145 * ipr_log_enhanced_array_error - Log an array configuration error.
1146 * @ioa_cfg: ioa config struct
1147 * @hostrcb: hostrcb struct
1152 static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg
*ioa_cfg
,
1153 struct ipr_hostrcb
*hostrcb
)
1156 struct ipr_hostrcb_type_14_error
*error
;
1157 struct ipr_hostrcb_array_data_entry_enhanced
*array_entry
;
1158 const u8 zero_sn
[IPR_SERIAL_NUM_LEN
] = { [0 ... IPR_SERIAL_NUM_LEN
-1] = '0' };
1160 error
= &hostrcb
->hcam
.u
.error
.u
.type_14_error
;
1164 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1165 error
->protection_level
,
1166 ioa_cfg
->host
->host_no
,
1167 error
->last_func_vset_res_addr
.bus
,
1168 error
->last_func_vset_res_addr
.target
,
1169 error
->last_func_vset_res_addr
.lun
);
1173 array_entry
= error
->array_member
;
1174 num_entries
= min_t(u32
, be32_to_cpu(error
->num_entries
),
1175 sizeof(error
->array_member
));
1177 for (i
= 0; i
< num_entries
; i
++, array_entry
++) {
1178 if (!memcmp(array_entry
->vpd
.vpd
.sn
, zero_sn
, IPR_SERIAL_NUM_LEN
))
1181 if (be32_to_cpu(error
->exposed_mode_adn
) == i
)
1182 ipr_err("Exposed Array Member %d:\n", i
);
1184 ipr_err("Array Member %d:\n", i
);
1186 ipr_log_ext_vpd(&array_entry
->vpd
);
1187 ipr_phys_res_err(ioa_cfg
, array_entry
->dev_res_addr
, "Current Location");
1188 ipr_phys_res_err(ioa_cfg
, array_entry
->expected_dev_res_addr
,
1189 "Expected Location");
1196 * ipr_log_array_error - Log an array configuration error.
1197 * @ioa_cfg: ioa config struct
1198 * @hostrcb: hostrcb struct
1203 static void ipr_log_array_error(struct ipr_ioa_cfg
*ioa_cfg
,
1204 struct ipr_hostrcb
*hostrcb
)
1207 struct ipr_hostrcb_type_04_error
*error
;
1208 struct ipr_hostrcb_array_data_entry
*array_entry
;
1209 const u8 zero_sn
[IPR_SERIAL_NUM_LEN
] = { [0 ... IPR_SERIAL_NUM_LEN
-1] = '0' };
1211 error
= &hostrcb
->hcam
.u
.error
.u
.type_04_error
;
1215 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1216 error
->protection_level
,
1217 ioa_cfg
->host
->host_no
,
1218 error
->last_func_vset_res_addr
.bus
,
1219 error
->last_func_vset_res_addr
.target
,
1220 error
->last_func_vset_res_addr
.lun
);
1224 array_entry
= error
->array_member
;
1226 for (i
= 0; i
< 18; i
++) {
1227 if (!memcmp(array_entry
->vpd
.sn
, zero_sn
, IPR_SERIAL_NUM_LEN
))
1230 if (be32_to_cpu(error
->exposed_mode_adn
) == i
)
1231 ipr_err("Exposed Array Member %d:\n", i
);
1233 ipr_err("Array Member %d:\n", i
);
1235 ipr_log_vpd(&array_entry
->vpd
);
1237 ipr_phys_res_err(ioa_cfg
, array_entry
->dev_res_addr
, "Current Location");
1238 ipr_phys_res_err(ioa_cfg
, array_entry
->expected_dev_res_addr
,
1239 "Expected Location");
1244 array_entry
= error
->array_member2
;
1251 * ipr_log_hex_data - Log additional hex IOA error data.
1252 * @data: IOA error data
1258 static void ipr_log_hex_data(u32
*data
, int len
)
1265 for (i
= 0; i
< len
/ 4; i
+= 4) {
1266 ipr_err("%08X: %08X %08X %08X %08X\n", i
*4,
1267 be32_to_cpu(data
[i
]),
1268 be32_to_cpu(data
[i
+1]),
1269 be32_to_cpu(data
[i
+2]),
1270 be32_to_cpu(data
[i
+3]));
1275 * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error.
1276 * @ioa_cfg: ioa config struct
1277 * @hostrcb: hostrcb struct
1282 static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg
*ioa_cfg
,
1283 struct ipr_hostrcb
*hostrcb
)
1285 struct ipr_hostrcb_type_17_error
*error
;
1287 error
= &hostrcb
->hcam
.u
.error
.u
.type_17_error
;
1288 error
->failure_reason
[sizeof(error
->failure_reason
) - 1] = '\0';
1290 ipr_err("%s\n", error
->failure_reason
);
1291 ipr_err("Remote Adapter VPD:\n");
1292 ipr_log_ext_vpd(&error
->vpd
);
1293 ipr_log_hex_data(error
->data
,
1294 be32_to_cpu(hostrcb
->hcam
.length
) -
1295 (offsetof(struct ipr_hostrcb_error
, u
) +
1296 offsetof(struct ipr_hostrcb_type_17_error
, data
)));
1300 * ipr_log_dual_ioa_error - Log a dual adapter error.
1301 * @ioa_cfg: ioa config struct
1302 * @hostrcb: hostrcb struct
1307 static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg
*ioa_cfg
,
1308 struct ipr_hostrcb
*hostrcb
)
1310 struct ipr_hostrcb_type_07_error
*error
;
1312 error
= &hostrcb
->hcam
.u
.error
.u
.type_07_error
;
1313 error
->failure_reason
[sizeof(error
->failure_reason
) - 1] = '\0';
1315 ipr_err("%s\n", error
->failure_reason
);
1316 ipr_err("Remote Adapter VPD:\n");
1317 ipr_log_vpd(&error
->vpd
);
1318 ipr_log_hex_data(error
->data
,
1319 be32_to_cpu(hostrcb
->hcam
.length
) -
1320 (offsetof(struct ipr_hostrcb_error
, u
) +
1321 offsetof(struct ipr_hostrcb_type_07_error
, data
)));
1325 * ipr_log_generic_error - Log an adapter error.
1326 * @ioa_cfg: ioa config struct
1327 * @hostrcb: hostrcb struct
1332 static void ipr_log_generic_error(struct ipr_ioa_cfg
*ioa_cfg
,
1333 struct ipr_hostrcb
*hostrcb
)
1335 ipr_log_hex_data(hostrcb
->hcam
.u
.raw
.data
,
1336 be32_to_cpu(hostrcb
->hcam
.length
));
1340 * ipr_get_error - Find the specfied IOASC in the ipr_error_table.
1343 * This function will return the index of into the ipr_error_table
1344 * for the specified IOASC. If the IOASC is not in the table,
1345 * 0 will be returned, which points to the entry used for unknown errors.
1348 * index into the ipr_error_table
1350 static u32
ipr_get_error(u32 ioasc
)
1354 for (i
= 0; i
< ARRAY_SIZE(ipr_error_table
); i
++)
1355 if (ipr_error_table
[i
].ioasc
== (ioasc
& IPR_IOASC_IOASC_MASK
))
1362 * ipr_handle_log_data - Log an adapter error.
1363 * @ioa_cfg: ioa config struct
1364 * @hostrcb: hostrcb struct
1366 * This function logs an adapter error to the system.
1371 static void ipr_handle_log_data(struct ipr_ioa_cfg
*ioa_cfg
,
1372 struct ipr_hostrcb
*hostrcb
)
1377 if (hostrcb
->hcam
.notify_type
!= IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY
)
1380 if (hostrcb
->hcam
.notifications_lost
== IPR_HOST_RCB_NOTIFICATIONS_LOST
)
1381 dev_err(&ioa_cfg
->pdev
->dev
, "Error notifications lost\n");
1383 ioasc
= be32_to_cpu(hostrcb
->hcam
.u
.error
.failing_dev_ioasc
);
1385 if (ioasc
== IPR_IOASC_BUS_WAS_RESET
||
1386 ioasc
== IPR_IOASC_BUS_WAS_RESET_BY_OTHER
) {
1387 /* Tell the midlayer we had a bus reset so it will handle the UA properly */
1388 scsi_report_bus_reset(ioa_cfg
->host
,
1389 hostrcb
->hcam
.u
.error
.failing_dev_res_addr
.bus
);
1392 error_index
= ipr_get_error(ioasc
);
1394 if (!ipr_error_table
[error_index
].log_hcam
)
1397 if (ipr_is_device(&hostrcb
->hcam
.u
.error
.failing_dev_res_addr
)) {
1398 ipr_ra_err(ioa_cfg
, hostrcb
->hcam
.u
.error
.failing_dev_res_addr
,
1399 "%s\n", ipr_error_table
[error_index
].error
);
1401 dev_err(&ioa_cfg
->pdev
->dev
, "%s\n",
1402 ipr_error_table
[error_index
].error
);
1405 /* Set indication we have logged an error */
1406 ioa_cfg
->errors_logged
++;
1408 if (ioa_cfg
->log_level
< IPR_DEFAULT_LOG_LEVEL
)
1410 if (be32_to_cpu(hostrcb
->hcam
.length
) > sizeof(hostrcb
->hcam
.u
.raw
))
1411 hostrcb
->hcam
.length
= cpu_to_be32(sizeof(hostrcb
->hcam
.u
.raw
));
1413 switch (hostrcb
->hcam
.overlay_id
) {
1414 case IPR_HOST_RCB_OVERLAY_ID_2
:
1415 ipr_log_cache_error(ioa_cfg
, hostrcb
);
1417 case IPR_HOST_RCB_OVERLAY_ID_3
:
1418 ipr_log_config_error(ioa_cfg
, hostrcb
);
1420 case IPR_HOST_RCB_OVERLAY_ID_4
:
1421 case IPR_HOST_RCB_OVERLAY_ID_6
:
1422 ipr_log_array_error(ioa_cfg
, hostrcb
);
1424 case IPR_HOST_RCB_OVERLAY_ID_7
:
1425 ipr_log_dual_ioa_error(ioa_cfg
, hostrcb
);
1427 case IPR_HOST_RCB_OVERLAY_ID_12
:
1428 ipr_log_enhanced_cache_error(ioa_cfg
, hostrcb
);
1430 case IPR_HOST_RCB_OVERLAY_ID_13
:
1431 ipr_log_enhanced_config_error(ioa_cfg
, hostrcb
);
1433 case IPR_HOST_RCB_OVERLAY_ID_14
:
1434 case IPR_HOST_RCB_OVERLAY_ID_16
:
1435 ipr_log_enhanced_array_error(ioa_cfg
, hostrcb
);
1437 case IPR_HOST_RCB_OVERLAY_ID_17
:
1438 ipr_log_enhanced_dual_ioa_error(ioa_cfg
, hostrcb
);
1440 case IPR_HOST_RCB_OVERLAY_ID_1
:
1441 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT
:
1443 ipr_log_generic_error(ioa_cfg
, hostrcb
);
1449 * ipr_process_error - Op done function for an adapter error log.
1450 * @ipr_cmd: ipr command struct
1452 * This function is the op done function for an error log host
1453 * controlled async from the adapter. It will log the error and
1454 * send the HCAM back to the adapter.
1459 static void ipr_process_error(struct ipr_cmnd
*ipr_cmd
)
1461 struct ipr_ioa_cfg
*ioa_cfg
= ipr_cmd
->ioa_cfg
;
1462 struct ipr_hostrcb
*hostrcb
= ipr_cmd
->u
.hostrcb
;
1463 u32 ioasc
= be32_to_cpu(ipr_cmd
->ioasa
.ioasc
);
1465 list_del(&hostrcb
->queue
);
1466 list_add_tail(&ipr_cmd
->queue
, &ioa_cfg
->free_q
);
1469 ipr_handle_log_data(ioa_cfg
, hostrcb
);
1470 } else if (ioasc
!= IPR_IOASC_IOA_WAS_RESET
) {
1471 dev_err(&ioa_cfg
->pdev
->dev
,
1472 "Host RCB failed with IOASC: 0x%08X\n", ioasc
);
1475 ipr_send_hcam(ioa_cfg
, IPR_HCAM_CDB_OP_CODE_LOG_DATA
, hostrcb
);
1479 * ipr_timeout - An internally generated op has timed out.
1480 * @ipr_cmd: ipr command struct
1482 * This function blocks host requests and initiates an
1488 static void ipr_timeout(struct ipr_cmnd
*ipr_cmd
)
1490 unsigned long lock_flags
= 0;
1491 struct ipr_ioa_cfg
*ioa_cfg
= ipr_cmd
->ioa_cfg
;
1494 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, lock_flags
);
1496 ioa_cfg
->errors_logged
++;
1497 dev_err(&ioa_cfg
->pdev
->dev
,
1498 "Adapter being reset due to command timeout.\n");
1500 if (WAIT_FOR_DUMP
== ioa_cfg
->sdt_state
)
1501 ioa_cfg
->sdt_state
= GET_DUMP
;
1503 if (!ioa_cfg
->in_reset_reload
|| ioa_cfg
->reset_cmd
== ipr_cmd
)
1504 ipr_initiate_ioa_reset(ioa_cfg
, IPR_SHUTDOWN_NONE
);
1506 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
1511 * ipr_oper_timeout - Adapter timed out transitioning to operational
1512 * @ipr_cmd: ipr command struct
1514 * This function blocks host requests and initiates an
1520 static void ipr_oper_timeout(struct ipr_cmnd
*ipr_cmd
)
1522 unsigned long lock_flags
= 0;
1523 struct ipr_ioa_cfg
*ioa_cfg
= ipr_cmd
->ioa_cfg
;
1526 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, lock_flags
);
1528 ioa_cfg
->errors_logged
++;
1529 dev_err(&ioa_cfg
->pdev
->dev
,
1530 "Adapter timed out transitioning to operational.\n");
1532 if (WAIT_FOR_DUMP
== ioa_cfg
->sdt_state
)
1533 ioa_cfg
->sdt_state
= GET_DUMP
;
1535 if (!ioa_cfg
->in_reset_reload
|| ioa_cfg
->reset_cmd
== ipr_cmd
) {
1537 ioa_cfg
->reset_retries
+= IPR_NUM_RESET_RELOAD_RETRIES
;
1538 ipr_initiate_ioa_reset(ioa_cfg
, IPR_SHUTDOWN_NONE
);
1541 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
1546 * ipr_reset_reload - Reset/Reload the IOA
1547 * @ioa_cfg: ioa config struct
1548 * @shutdown_type: shutdown type
1550 * This function resets the adapter and re-initializes it.
1551 * This function assumes that all new host commands have been stopped.
1555 static int ipr_reset_reload(struct ipr_ioa_cfg
*ioa_cfg
,
1556 enum ipr_shutdown_type shutdown_type
)
1558 if (!ioa_cfg
->in_reset_reload
)
1559 ipr_initiate_ioa_reset(ioa_cfg
, shutdown_type
);
1561 spin_unlock_irq(ioa_cfg
->host
->host_lock
);
1562 wait_event(ioa_cfg
->reset_wait_q
, !ioa_cfg
->in_reset_reload
);
1563 spin_lock_irq(ioa_cfg
->host
->host_lock
);
1565 /* If we got hit with a host reset while we were already resetting
1566 the adapter for some reason, and the reset failed. */
1567 if (ioa_cfg
->ioa_is_dead
) {
1576 * ipr_find_ses_entry - Find matching SES in SES table
1577 * @res: resource entry struct of SES
1580 * pointer to SES table entry / NULL on failure
1582 static const struct ipr_ses_table_entry
*
1583 ipr_find_ses_entry(struct ipr_resource_entry
*res
)
1586 const struct ipr_ses_table_entry
*ste
= ipr_ses_table
;
1588 for (i
= 0; i
< ARRAY_SIZE(ipr_ses_table
); i
++, ste
++) {
1589 for (j
= 0, matches
= 0; j
< IPR_PROD_ID_LEN
; j
++) {
1590 if (ste
->compare_product_id_byte
[j
] == 'X') {
1591 if (res
->cfgte
.std_inq_data
.vpids
.product_id
[j
] == ste
->product_id
[j
])
1599 if (matches
== IPR_PROD_ID_LEN
)
1607 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus
1608 * @ioa_cfg: ioa config struct
1610 * @bus_width: bus width
1613 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz
1614 * For a 2-byte wide SCSI bus, the maximum transfer speed is
1615 * twice the maximum transfer rate (e.g. for a wide enabled bus,
1616 * max 160MHz = max 320MB/sec).
1618 static u32
ipr_get_max_scsi_speed(struct ipr_ioa_cfg
*ioa_cfg
, u8 bus
, u8 bus_width
)
1620 struct ipr_resource_entry
*res
;
1621 const struct ipr_ses_table_entry
*ste
;
1622 u32 max_xfer_rate
= IPR_MAX_SCSI_RATE(bus_width
);
1624 /* Loop through each config table entry in the config table buffer */
1625 list_for_each_entry(res
, &ioa_cfg
->used_res_q
, queue
) {
1626 if (!(IPR_IS_SES_DEVICE(res
->cfgte
.std_inq_data
)))
1629 if (bus
!= res
->cfgte
.res_addr
.bus
)
1632 if (!(ste
= ipr_find_ses_entry(res
)))
1635 max_xfer_rate
= (ste
->max_bus_speed_limit
* 10) / (bus_width
/ 8);
1638 return max_xfer_rate
;
1642 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA
1643 * @ioa_cfg: ioa config struct
1644 * @max_delay: max delay in micro-seconds to wait
1646 * Waits for an IODEBUG ACK from the IOA, doing busy looping.
1649 * 0 on success / other on failure
1651 static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg
*ioa_cfg
, int max_delay
)
1653 volatile u32 pcii_reg
;
1656 /* Read interrupt reg until IOA signals IO Debug Acknowledge */
1657 while (delay
< max_delay
) {
1658 pcii_reg
= readl(ioa_cfg
->regs
.sense_interrupt_reg
);
1660 if (pcii_reg
& IPR_PCII_IO_DEBUG_ACKNOWLEDGE
)
1663 /* udelay cannot be used if delay is more than a few milliseconds */
1664 if ((delay
/ 1000) > MAX_UDELAY_MS
)
1665 mdelay(delay
/ 1000);
1675 * ipr_get_ldump_data_section - Dump IOA memory
1676 * @ioa_cfg: ioa config struct
1677 * @start_addr: adapter address to dump
1678 * @dest: destination kernel buffer
1679 * @length_in_words: length to dump in 4 byte words
1682 * 0 on success / -EIO on failure
1684 static int ipr_get_ldump_data_section(struct ipr_ioa_cfg
*ioa_cfg
,
1686 __be32
*dest
, u32 length_in_words
)
1688 volatile u32 temp_pcii_reg
;
1691 /* Write IOA interrupt reg starting LDUMP state */
1692 writel((IPR_UPROCI_RESET_ALERT
| IPR_UPROCI_IO_DEBUG_ALERT
),
1693 ioa_cfg
->regs
.set_uproc_interrupt_reg
);
1695 /* Wait for IO debug acknowledge */
1696 if (ipr_wait_iodbg_ack(ioa_cfg
,
1697 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC
)) {
1698 dev_err(&ioa_cfg
->pdev
->dev
,
1699 "IOA dump long data transfer timeout\n");
1703 /* Signal LDUMP interlocked - clear IO debug ack */
1704 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE
,
1705 ioa_cfg
->regs
.clr_interrupt_reg
);
1707 /* Write Mailbox with starting address */
1708 writel(start_addr
, ioa_cfg
->ioa_mailbox
);
1710 /* Signal address valid - clear IOA Reset alert */
1711 writel(IPR_UPROCI_RESET_ALERT
,
1712 ioa_cfg
->regs
.clr_uproc_interrupt_reg
);
1714 for (i
= 0; i
< length_in_words
; i
++) {
1715 /* Wait for IO debug acknowledge */
1716 if (ipr_wait_iodbg_ack(ioa_cfg
,
1717 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC
)) {
1718 dev_err(&ioa_cfg
->pdev
->dev
,
1719 "IOA dump short data transfer timeout\n");
1723 /* Read data from mailbox and increment destination pointer */
1724 *dest
= cpu_to_be32(readl(ioa_cfg
->ioa_mailbox
));
1727 /* For all but the last word of data, signal data received */
1728 if (i
< (length_in_words
- 1)) {
1729 /* Signal dump data received - Clear IO debug Ack */
1730 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE
,
1731 ioa_cfg
->regs
.clr_interrupt_reg
);
1735 /* Signal end of block transfer. Set reset alert then clear IO debug ack */
1736 writel(IPR_UPROCI_RESET_ALERT
,
1737 ioa_cfg
->regs
.set_uproc_interrupt_reg
);
1739 writel(IPR_UPROCI_IO_DEBUG_ALERT
,
1740 ioa_cfg
->regs
.clr_uproc_interrupt_reg
);
1742 /* Signal dump data received - Clear IO debug Ack */
1743 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE
,
1744 ioa_cfg
->regs
.clr_interrupt_reg
);
1746 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */
1747 while (delay
< IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC
) {
1749 readl(ioa_cfg
->regs
.sense_uproc_interrupt_reg
);
1751 if (!(temp_pcii_reg
& IPR_UPROCI_RESET_ALERT
))
1761 #ifdef CONFIG_SCSI_IPR_DUMP
1763 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer
1764 * @ioa_cfg: ioa config struct
1765 * @pci_address: adapter address
1766 * @length: length of data to copy
1768 * Copy data from PCI adapter to kernel buffer.
1769 * Note: length MUST be a 4 byte multiple
1771 * 0 on success / other on failure
1773 static int ipr_sdt_copy(struct ipr_ioa_cfg
*ioa_cfg
,
1774 unsigned long pci_address
, u32 length
)
1776 int bytes_copied
= 0;
1777 int cur_len
, rc
, rem_len
, rem_page_len
;
1779 unsigned long lock_flags
= 0;
1780 struct ipr_ioa_dump
*ioa_dump
= &ioa_cfg
->dump
->ioa_dump
;
1782 while (bytes_copied
< length
&&
1783 (ioa_dump
->hdr
.len
+ bytes_copied
) < IPR_MAX_IOA_DUMP_SIZE
) {
1784 if (ioa_dump
->page_offset
>= PAGE_SIZE
||
1785 ioa_dump
->page_offset
== 0) {
1786 page
= (__be32
*)__get_free_page(GFP_ATOMIC
);
1790 return bytes_copied
;
1793 ioa_dump
->page_offset
= 0;
1794 ioa_dump
->ioa_data
[ioa_dump
->next_page_index
] = page
;
1795 ioa_dump
->next_page_index
++;
1797 page
= ioa_dump
->ioa_data
[ioa_dump
->next_page_index
- 1];
1799 rem_len
= length
- bytes_copied
;
1800 rem_page_len
= PAGE_SIZE
- ioa_dump
->page_offset
;
1801 cur_len
= min(rem_len
, rem_page_len
);
1803 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, lock_flags
);
1804 if (ioa_cfg
->sdt_state
== ABORT_DUMP
) {
1807 rc
= ipr_get_ldump_data_section(ioa_cfg
,
1808 pci_address
+ bytes_copied
,
1809 &page
[ioa_dump
->page_offset
/ 4],
1810 (cur_len
/ sizeof(u32
)));
1812 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
1815 ioa_dump
->page_offset
+= cur_len
;
1816 bytes_copied
+= cur_len
;
1824 return bytes_copied
;
1828 * ipr_init_dump_entry_hdr - Initialize a dump entry header.
1829 * @hdr: dump entry header struct
1834 static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header
*hdr
)
1836 hdr
->eye_catcher
= IPR_DUMP_EYE_CATCHER
;
1838 hdr
->offset
= sizeof(*hdr
);
1839 hdr
->status
= IPR_DUMP_STATUS_SUCCESS
;
1843 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump.
1844 * @ioa_cfg: ioa config struct
1845 * @driver_dump: driver dump struct
1850 static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg
*ioa_cfg
,
1851 struct ipr_driver_dump
*driver_dump
)
1853 struct ipr_inquiry_page3
*ucode_vpd
= &ioa_cfg
->vpd_cbs
->page3_data
;
1855 ipr_init_dump_entry_hdr(&driver_dump
->ioa_type_entry
.hdr
);
1856 driver_dump
->ioa_type_entry
.hdr
.len
=
1857 sizeof(struct ipr_dump_ioa_type_entry
) -
1858 sizeof(struct ipr_dump_entry_header
);
1859 driver_dump
->ioa_type_entry
.hdr
.data_type
= IPR_DUMP_DATA_TYPE_BINARY
;
1860 driver_dump
->ioa_type_entry
.hdr
.id
= IPR_DUMP_DRIVER_TYPE_ID
;
1861 driver_dump
->ioa_type_entry
.type
= ioa_cfg
->type
;
1862 driver_dump
->ioa_type_entry
.fw_version
= (ucode_vpd
->major_release
<< 24) |
1863 (ucode_vpd
->card_type
<< 16) | (ucode_vpd
->minor_release
[0] << 8) |
1864 ucode_vpd
->minor_release
[1];
1865 driver_dump
->hdr
.num_entries
++;
1869 * ipr_dump_version_data - Fill in the driver version in the dump.
1870 * @ioa_cfg: ioa config struct
1871 * @driver_dump: driver dump struct
1876 static void ipr_dump_version_data(struct ipr_ioa_cfg
*ioa_cfg
,
1877 struct ipr_driver_dump
*driver_dump
)
1879 ipr_init_dump_entry_hdr(&driver_dump
->version_entry
.hdr
);
1880 driver_dump
->version_entry
.hdr
.len
=
1881 sizeof(struct ipr_dump_version_entry
) -
1882 sizeof(struct ipr_dump_entry_header
);
1883 driver_dump
->version_entry
.hdr
.data_type
= IPR_DUMP_DATA_TYPE_ASCII
;
1884 driver_dump
->version_entry
.hdr
.id
= IPR_DUMP_DRIVER_VERSION_ID
;
1885 strcpy(driver_dump
->version_entry
.version
, IPR_DRIVER_VERSION
);
1886 driver_dump
->hdr
.num_entries
++;
1890 * ipr_dump_trace_data - Fill in the IOA trace in the dump.
1891 * @ioa_cfg: ioa config struct
1892 * @driver_dump: driver dump struct
1897 static void ipr_dump_trace_data(struct ipr_ioa_cfg
*ioa_cfg
,
1898 struct ipr_driver_dump
*driver_dump
)
1900 ipr_init_dump_entry_hdr(&driver_dump
->trace_entry
.hdr
);
1901 driver_dump
->trace_entry
.hdr
.len
=
1902 sizeof(struct ipr_dump_trace_entry
) -
1903 sizeof(struct ipr_dump_entry_header
);
1904 driver_dump
->trace_entry
.hdr
.data_type
= IPR_DUMP_DATA_TYPE_BINARY
;
1905 driver_dump
->trace_entry
.hdr
.id
= IPR_DUMP_TRACE_ID
;
1906 memcpy(driver_dump
->trace_entry
.trace
, ioa_cfg
->trace
, IPR_TRACE_SIZE
);
1907 driver_dump
->hdr
.num_entries
++;
1911 * ipr_dump_location_data - Fill in the IOA location in the dump.
1912 * @ioa_cfg: ioa config struct
1913 * @driver_dump: driver dump struct
1918 static void ipr_dump_location_data(struct ipr_ioa_cfg
*ioa_cfg
,
1919 struct ipr_driver_dump
*driver_dump
)
1921 ipr_init_dump_entry_hdr(&driver_dump
->location_entry
.hdr
);
1922 driver_dump
->location_entry
.hdr
.len
=
1923 sizeof(struct ipr_dump_location_entry
) -
1924 sizeof(struct ipr_dump_entry_header
);
1925 driver_dump
->location_entry
.hdr
.data_type
= IPR_DUMP_DATA_TYPE_ASCII
;
1926 driver_dump
->location_entry
.hdr
.id
= IPR_DUMP_LOCATION_ID
;
1927 strcpy(driver_dump
->location_entry
.location
, ioa_cfg
->pdev
->dev
.bus_id
);
1928 driver_dump
->hdr
.num_entries
++;
1932 * ipr_get_ioa_dump - Perform a dump of the driver and adapter.
1933 * @ioa_cfg: ioa config struct
1934 * @dump: dump struct
1939 static void ipr_get_ioa_dump(struct ipr_ioa_cfg
*ioa_cfg
, struct ipr_dump
*dump
)
1941 unsigned long start_addr
, sdt_word
;
1942 unsigned long lock_flags
= 0;
1943 struct ipr_driver_dump
*driver_dump
= &dump
->driver_dump
;
1944 struct ipr_ioa_dump
*ioa_dump
= &dump
->ioa_dump
;
1945 u32 num_entries
, start_off
, end_off
;
1946 u32 bytes_to_copy
, bytes_copied
, rc
;
1947 struct ipr_sdt
*sdt
;
1952 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, lock_flags
);
1954 if (ioa_cfg
->sdt_state
!= GET_DUMP
) {
1955 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
1959 start_addr
= readl(ioa_cfg
->ioa_mailbox
);
1961 if (!ipr_sdt_is_fmt2(start_addr
)) {
1962 dev_err(&ioa_cfg
->pdev
->dev
,
1963 "Invalid dump table format: %lx\n", start_addr
);
1964 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
1968 dev_err(&ioa_cfg
->pdev
->dev
, "Dump of IOA initiated\n");
1970 driver_dump
->hdr
.eye_catcher
= IPR_DUMP_EYE_CATCHER
;
1972 /* Initialize the overall dump header */
1973 driver_dump
->hdr
.len
= sizeof(struct ipr_driver_dump
);
1974 driver_dump
->hdr
.num_entries
= 1;
1975 driver_dump
->hdr
.first_entry_offset
= sizeof(struct ipr_dump_header
);
1976 driver_dump
->hdr
.status
= IPR_DUMP_STATUS_SUCCESS
;
1977 driver_dump
->hdr
.os
= IPR_DUMP_OS_LINUX
;
1978 driver_dump
->hdr
.driver_name
= IPR_DUMP_DRIVER_NAME
;
1980 ipr_dump_version_data(ioa_cfg
, driver_dump
);
1981 ipr_dump_location_data(ioa_cfg
, driver_dump
);
1982 ipr_dump_ioa_type_data(ioa_cfg
, driver_dump
);
1983 ipr_dump_trace_data(ioa_cfg
, driver_dump
);
1985 /* Update dump_header */
1986 driver_dump
->hdr
.len
+= sizeof(struct ipr_dump_entry_header
);
1988 /* IOA Dump entry */
1989 ipr_init_dump_entry_hdr(&ioa_dump
->hdr
);
1990 ioa_dump
->format
= IPR_SDT_FMT2
;
1991 ioa_dump
->hdr
.len
= 0;
1992 ioa_dump
->hdr
.data_type
= IPR_DUMP_DATA_TYPE_BINARY
;
1993 ioa_dump
->hdr
.id
= IPR_DUMP_IOA_DUMP_ID
;
1995 /* First entries in sdt are actually a list of dump addresses and
1996 lengths to gather the real dump data. sdt represents the pointer
1997 to the ioa generated dump table. Dump data will be extracted based
1998 on entries in this table */
1999 sdt
= &ioa_dump
->sdt
;
2001 rc
= ipr_get_ldump_data_section(ioa_cfg
, start_addr
, (__be32
*)sdt
,
2002 sizeof(struct ipr_sdt
) / sizeof(__be32
));
2004 /* Smart Dump table is ready to use and the first entry is valid */
2005 if (rc
|| (be32_to_cpu(sdt
->hdr
.state
) != IPR_FMT2_SDT_READY_TO_USE
)) {
2006 dev_err(&ioa_cfg
->pdev
->dev
,
2007 "Dump of IOA failed. Dump table not valid: %d, %X.\n",
2008 rc
, be32_to_cpu(sdt
->hdr
.state
));
2009 driver_dump
->hdr
.status
= IPR_DUMP_STATUS_FAILED
;
2010 ioa_cfg
->sdt_state
= DUMP_OBTAINED
;
2011 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
2015 num_entries
= be32_to_cpu(sdt
->hdr
.num_entries_used
);
2017 if (num_entries
> IPR_NUM_SDT_ENTRIES
)
2018 num_entries
= IPR_NUM_SDT_ENTRIES
;
2020 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
2022 for (i
= 0; i
< num_entries
; i
++) {
2023 if (ioa_dump
->hdr
.len
> IPR_MAX_IOA_DUMP_SIZE
) {
2024 driver_dump
->hdr
.status
= IPR_DUMP_STATUS_QUAL_SUCCESS
;
2028 if (sdt
->entry
[i
].flags
& IPR_SDT_VALID_ENTRY
) {
2029 sdt_word
= be32_to_cpu(sdt
->entry
[i
].bar_str_offset
);
2030 start_off
= sdt_word
& IPR_FMT2_MBX_ADDR_MASK
;
2031 end_off
= be32_to_cpu(sdt
->entry
[i
].end_offset
);
2033 if (ipr_sdt_is_fmt2(sdt_word
) && sdt_word
) {
2034 bytes_to_copy
= end_off
- start_off
;
2035 if (bytes_to_copy
> IPR_MAX_IOA_DUMP_SIZE
) {
2036 sdt
->entry
[i
].flags
&= ~IPR_SDT_VALID_ENTRY
;
2040 /* Copy data from adapter to driver buffers */
2041 bytes_copied
= ipr_sdt_copy(ioa_cfg
, sdt_word
,
2044 ioa_dump
->hdr
.len
+= bytes_copied
;
2046 if (bytes_copied
!= bytes_to_copy
) {
2047 driver_dump
->hdr
.status
= IPR_DUMP_STATUS_QUAL_SUCCESS
;
2054 dev_err(&ioa_cfg
->pdev
->dev
, "Dump of IOA completed.\n");
2056 /* Update dump_header */
2057 driver_dump
->hdr
.len
+= ioa_dump
->hdr
.len
;
2059 ioa_cfg
->sdt_state
= DUMP_OBTAINED
;
2064 #define ipr_get_ioa_dump(ioa_cfg, dump) do { } while(0)
2068 * ipr_release_dump - Free adapter dump memory
2069 * @kref: kref struct
2074 static void ipr_release_dump(struct kref
*kref
)
2076 struct ipr_dump
*dump
= container_of(kref
,struct ipr_dump
,kref
);
2077 struct ipr_ioa_cfg
*ioa_cfg
= dump
->ioa_cfg
;
2078 unsigned long lock_flags
= 0;
2082 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, lock_flags
);
2083 ioa_cfg
->dump
= NULL
;
2084 ioa_cfg
->sdt_state
= INACTIVE
;
2085 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
2087 for (i
= 0; i
< dump
->ioa_dump
.next_page_index
; i
++)
2088 free_page((unsigned long) dump
->ioa_dump
.ioa_data
[i
]);
2095 * ipr_worker_thread - Worker thread
2096 * @data: ioa config struct
2098 * Called at task level from a work thread. This function takes care
2099 * of adding and removing device from the mid-layer as configuration
2100 * changes are detected by the adapter.
2105 static void ipr_worker_thread(void *data
)
2107 unsigned long lock_flags
;
2108 struct ipr_resource_entry
*res
;
2109 struct scsi_device
*sdev
;
2110 struct ipr_dump
*dump
;
2111 struct ipr_ioa_cfg
*ioa_cfg
= data
;
2112 u8 bus
, target
, lun
;
2116 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, lock_flags
);
2118 if (ioa_cfg
->sdt_state
== GET_DUMP
) {
2119 dump
= ioa_cfg
->dump
;
2121 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
2124 kref_get(&dump
->kref
);
2125 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
2126 ipr_get_ioa_dump(ioa_cfg
, dump
);
2127 kref_put(&dump
->kref
, ipr_release_dump
);
2129 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, lock_flags
);
2130 if (ioa_cfg
->sdt_state
== DUMP_OBTAINED
)
2131 ipr_initiate_ioa_reset(ioa_cfg
, IPR_SHUTDOWN_NONE
);
2132 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
2139 if (!ioa_cfg
->allow_cmds
|| !ioa_cfg
->allow_ml_add_del
) {
2140 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
2144 list_for_each_entry(res
, &ioa_cfg
->used_res_q
, queue
) {
2145 if (res
->del_from_ml
&& res
->sdev
) {
2148 if (!scsi_device_get(sdev
)) {
2149 list_move_tail(&res
->queue
, &ioa_cfg
->free_res_q
);
2150 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
2151 scsi_remove_device(sdev
);
2152 scsi_device_put(sdev
);
2153 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, lock_flags
);
2160 list_for_each_entry(res
, &ioa_cfg
->used_res_q
, queue
) {
2161 if (res
->add_to_ml
) {
2162 bus
= res
->cfgte
.res_addr
.bus
;
2163 target
= res
->cfgte
.res_addr
.target
;
2164 lun
= res
->cfgte
.res_addr
.lun
;
2166 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
2167 scsi_add_device(ioa_cfg
->host
, bus
, target
, lun
);
2168 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, lock_flags
);
2173 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
2174 kobject_uevent(&ioa_cfg
->host
->shost_classdev
.kobj
, KOBJ_CHANGE
);
2178 #ifdef CONFIG_SCSI_IPR_TRACE
2180 * ipr_read_trace - Dump the adapter trace
2181 * @kobj: kobject struct
2184 * @count: buffer size
2187 * number of bytes printed to buffer
2189 static ssize_t
ipr_read_trace(struct kobject
*kobj
, char *buf
,
2190 loff_t off
, size_t count
)
2192 struct class_device
*cdev
= container_of(kobj
,struct class_device
,kobj
);
2193 struct Scsi_Host
*shost
= class_to_shost(cdev
);
2194 struct ipr_ioa_cfg
*ioa_cfg
= (struct ipr_ioa_cfg
*)shost
->hostdata
;
2195 unsigned long lock_flags
= 0;
2196 int size
= IPR_TRACE_SIZE
;
2197 char *src
= (char *)ioa_cfg
->trace
;
2201 if (off
+ count
> size
) {
2206 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, lock_flags
);
2207 memcpy(buf
, &src
[off
], count
);
2208 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
2212 static struct bin_attribute ipr_trace_attr
= {
2218 .read
= ipr_read_trace
,
2222 static const struct {
2223 enum ipr_cache_state state
;
2225 } cache_state
[] = {
2226 { CACHE_NONE
, "none" },
2227 { CACHE_DISABLED
, "disabled" },
2228 { CACHE_ENABLED
, "enabled" }
2232 * ipr_show_write_caching - Show the write caching attribute
2233 * @class_dev: class device struct
2237 * number of bytes printed to buffer
2239 static ssize_t
ipr_show_write_caching(struct class_device
*class_dev
, char *buf
)
2241 struct Scsi_Host
*shost
= class_to_shost(class_dev
);
2242 struct ipr_ioa_cfg
*ioa_cfg
= (struct ipr_ioa_cfg
*)shost
->hostdata
;
2243 unsigned long lock_flags
= 0;
2246 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, lock_flags
);
2247 for (i
= 0; i
< ARRAY_SIZE(cache_state
); i
++) {
2248 if (cache_state
[i
].state
== ioa_cfg
->cache_state
) {
2249 len
= snprintf(buf
, PAGE_SIZE
, "%s\n", cache_state
[i
].name
);
2253 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
2259 * ipr_store_write_caching - Enable/disable adapter write cache
2260 * @class_dev: class_device struct
2262 * @count: buffer size
2264 * This function will enable/disable adapter write cache.
2267 * count on success / other on failure
2269 static ssize_t
ipr_store_write_caching(struct class_device
*class_dev
,
2270 const char *buf
, size_t count
)
2272 struct Scsi_Host
*shost
= class_to_shost(class_dev
);
2273 struct ipr_ioa_cfg
*ioa_cfg
= (struct ipr_ioa_cfg
*)shost
->hostdata
;
2274 unsigned long lock_flags
= 0;
2275 enum ipr_cache_state new_state
= CACHE_INVALID
;
2278 if (!capable(CAP_SYS_ADMIN
))
2280 if (ioa_cfg
->cache_state
== CACHE_NONE
)
2283 for (i
= 0; i
< ARRAY_SIZE(cache_state
); i
++) {
2284 if (!strncmp(cache_state
[i
].name
, buf
, strlen(cache_state
[i
].name
))) {
2285 new_state
= cache_state
[i
].state
;
2290 if (new_state
!= CACHE_DISABLED
&& new_state
!= CACHE_ENABLED
)
2293 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, lock_flags
);
2294 if (ioa_cfg
->cache_state
== new_state
) {
2295 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
2299 ioa_cfg
->cache_state
= new_state
;
2300 dev_info(&ioa_cfg
->pdev
->dev
, "%s adapter write cache.\n",
2301 new_state
== CACHE_ENABLED
? "Enabling" : "Disabling");
2302 if (!ioa_cfg
->in_reset_reload
)
2303 ipr_initiate_ioa_reset(ioa_cfg
, IPR_SHUTDOWN_NORMAL
);
2304 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
2305 wait_event(ioa_cfg
->reset_wait_q
, !ioa_cfg
->in_reset_reload
);
2310 static struct class_device_attribute ipr_ioa_cache_attr
= {
2312 .name
= "write_cache",
2313 .mode
= S_IRUGO
| S_IWUSR
,
2315 .show
= ipr_show_write_caching
,
2316 .store
= ipr_store_write_caching
2320 * ipr_show_fw_version - Show the firmware version
2321 * @class_dev: class device struct
2325 * number of bytes printed to buffer
2327 static ssize_t
ipr_show_fw_version(struct class_device
*class_dev
, char *buf
)
2329 struct Scsi_Host
*shost
= class_to_shost(class_dev
);
2330 struct ipr_ioa_cfg
*ioa_cfg
= (struct ipr_ioa_cfg
*)shost
->hostdata
;
2331 struct ipr_inquiry_page3
*ucode_vpd
= &ioa_cfg
->vpd_cbs
->page3_data
;
2332 unsigned long lock_flags
= 0;
2335 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, lock_flags
);
2336 len
= snprintf(buf
, PAGE_SIZE
, "%02X%02X%02X%02X\n",
2337 ucode_vpd
->major_release
, ucode_vpd
->card_type
,
2338 ucode_vpd
->minor_release
[0],
2339 ucode_vpd
->minor_release
[1]);
2340 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
2344 static struct class_device_attribute ipr_fw_version_attr
= {
2346 .name
= "fw_version",
2349 .show
= ipr_show_fw_version
,
2353 * ipr_show_log_level - Show the adapter's error logging level
2354 * @class_dev: class device struct
2358 * number of bytes printed to buffer
2360 static ssize_t
ipr_show_log_level(struct class_device
*class_dev
, char *buf
)
2362 struct Scsi_Host
*shost
= class_to_shost(class_dev
);
2363 struct ipr_ioa_cfg
*ioa_cfg
= (struct ipr_ioa_cfg
*)shost
->hostdata
;
2364 unsigned long lock_flags
= 0;
2367 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, lock_flags
);
2368 len
= snprintf(buf
, PAGE_SIZE
, "%d\n", ioa_cfg
->log_level
);
2369 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
2374 * ipr_store_log_level - Change the adapter's error logging level
2375 * @class_dev: class device struct
2379 * number of bytes printed to buffer
2381 static ssize_t
ipr_store_log_level(struct class_device
*class_dev
,
2382 const char *buf
, size_t count
)
2384 struct Scsi_Host
*shost
= class_to_shost(class_dev
);
2385 struct ipr_ioa_cfg
*ioa_cfg
= (struct ipr_ioa_cfg
*)shost
->hostdata
;
2386 unsigned long lock_flags
= 0;
2388 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, lock_flags
);
2389 ioa_cfg
->log_level
= simple_strtoul(buf
, NULL
, 10);
2390 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
2394 static struct class_device_attribute ipr_log_level_attr
= {
2396 .name
= "log_level",
2397 .mode
= S_IRUGO
| S_IWUSR
,
2399 .show
= ipr_show_log_level
,
2400 .store
= ipr_store_log_level
2404 * ipr_store_diagnostics - IOA Diagnostics interface
2405 * @class_dev: class_device struct
2407 * @count: buffer size
2409 * This function will reset the adapter and wait a reasonable
2410 * amount of time for any errors that the adapter might log.
2413 * count on success / other on failure
2415 static ssize_t
ipr_store_diagnostics(struct class_device
*class_dev
,
2416 const char *buf
, size_t count
)
2418 struct Scsi_Host
*shost
= class_to_shost(class_dev
);
2419 struct ipr_ioa_cfg
*ioa_cfg
= (struct ipr_ioa_cfg
*)shost
->hostdata
;
2420 unsigned long lock_flags
= 0;
2423 if (!capable(CAP_SYS_ADMIN
))
2426 wait_event(ioa_cfg
->reset_wait_q
, !ioa_cfg
->in_reset_reload
);
2427 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, lock_flags
);
2428 ioa_cfg
->errors_logged
= 0;
2429 ipr_initiate_ioa_reset(ioa_cfg
, IPR_SHUTDOWN_NORMAL
);
2431 if (ioa_cfg
->in_reset_reload
) {
2432 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
2433 wait_event(ioa_cfg
->reset_wait_q
, !ioa_cfg
->in_reset_reload
);
2435 /* Wait for a second for any errors to be logged */
2438 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
2442 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, lock_flags
);
2443 if (ioa_cfg
->in_reset_reload
|| ioa_cfg
->errors_logged
)
2445 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
2450 static struct class_device_attribute ipr_diagnostics_attr
= {
2452 .name
= "run_diagnostics",
2455 .store
= ipr_store_diagnostics
2459 * ipr_show_adapter_state - Show the adapter's state
2460 * @class_dev: class device struct
2464 * number of bytes printed to buffer
2466 static ssize_t
ipr_show_adapter_state(struct class_device
*class_dev
, char *buf
)
2468 struct Scsi_Host
*shost
= class_to_shost(class_dev
);
2469 struct ipr_ioa_cfg
*ioa_cfg
= (struct ipr_ioa_cfg
*)shost
->hostdata
;
2470 unsigned long lock_flags
= 0;
2473 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, lock_flags
);
2474 if (ioa_cfg
->ioa_is_dead
)
2475 len
= snprintf(buf
, PAGE_SIZE
, "offline\n");
2477 len
= snprintf(buf
, PAGE_SIZE
, "online\n");
2478 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
2483 * ipr_store_adapter_state - Change adapter state
2484 * @class_dev: class_device struct
2486 * @count: buffer size
2488 * This function will change the adapter's state.
2491 * count on success / other on failure
2493 static ssize_t
ipr_store_adapter_state(struct class_device
*class_dev
,
2494 const char *buf
, size_t count
)
2496 struct Scsi_Host
*shost
= class_to_shost(class_dev
);
2497 struct ipr_ioa_cfg
*ioa_cfg
= (struct ipr_ioa_cfg
*)shost
->hostdata
;
2498 unsigned long lock_flags
;
2501 if (!capable(CAP_SYS_ADMIN
))
2504 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, lock_flags
);
2505 if (ioa_cfg
->ioa_is_dead
&& !strncmp(buf
, "online", 6)) {
2506 ioa_cfg
->ioa_is_dead
= 0;
2507 ioa_cfg
->reset_retries
= 0;
2508 ioa_cfg
->in_ioa_bringdown
= 0;
2509 ipr_initiate_ioa_reset(ioa_cfg
, IPR_SHUTDOWN_NONE
);
2511 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
2512 wait_event(ioa_cfg
->reset_wait_q
, !ioa_cfg
->in_reset_reload
);
2517 static struct class_device_attribute ipr_ioa_state_attr
= {
2520 .mode
= S_IRUGO
| S_IWUSR
,
2522 .show
= ipr_show_adapter_state
,
2523 .store
= ipr_store_adapter_state
2527 * ipr_store_reset_adapter - Reset the adapter
2528 * @class_dev: class_device struct
2530 * @count: buffer size
2532 * This function will reset the adapter.
2535 * count on success / other on failure
2537 static ssize_t
ipr_store_reset_adapter(struct class_device
*class_dev
,
2538 const char *buf
, size_t count
)
2540 struct Scsi_Host
*shost
= class_to_shost(class_dev
);
2541 struct ipr_ioa_cfg
*ioa_cfg
= (struct ipr_ioa_cfg
*)shost
->hostdata
;
2542 unsigned long lock_flags
;
2545 if (!capable(CAP_SYS_ADMIN
))
2548 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, lock_flags
);
2549 if (!ioa_cfg
->in_reset_reload
)
2550 ipr_initiate_ioa_reset(ioa_cfg
, IPR_SHUTDOWN_NORMAL
);
2551 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
2552 wait_event(ioa_cfg
->reset_wait_q
, !ioa_cfg
->in_reset_reload
);
2557 static struct class_device_attribute ipr_ioa_reset_attr
= {
2559 .name
= "reset_host",
2562 .store
= ipr_store_reset_adapter
2566 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer
2567 * @buf_len: buffer length
2569 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather
2570 * list to use for microcode download
2573 * pointer to sglist / NULL on failure
2575 static struct ipr_sglist
*ipr_alloc_ucode_buffer(int buf_len
)
2577 int sg_size
, order
, bsize_elem
, num_elem
, i
, j
;
2578 struct ipr_sglist
*sglist
;
2579 struct scatterlist
*scatterlist
;
2582 /* Get the minimum size per scatter/gather element */
2583 sg_size
= buf_len
/ (IPR_MAX_SGLIST
- 1);
2585 /* Get the actual size per element */
2586 order
= get_order(sg_size
);
2588 /* Determine the actual number of bytes per element */
2589 bsize_elem
= PAGE_SIZE
* (1 << order
);
2591 /* Determine the actual number of sg entries needed */
2592 if (buf_len
% bsize_elem
)
2593 num_elem
= (buf_len
/ bsize_elem
) + 1;
2595 num_elem
= buf_len
/ bsize_elem
;
2597 /* Allocate a scatter/gather list for the DMA */
2598 sglist
= kzalloc(sizeof(struct ipr_sglist
) +
2599 (sizeof(struct scatterlist
) * (num_elem
- 1)),
2602 if (sglist
== NULL
) {
2607 scatterlist
= sglist
->scatterlist
;
2609 sglist
->order
= order
;
2610 sglist
->num_sg
= num_elem
;
2612 /* Allocate a bunch of sg elements */
2613 for (i
= 0; i
< num_elem
; i
++) {
2614 page
= alloc_pages(GFP_KERNEL
, order
);
2618 /* Free up what we already allocated */
2619 for (j
= i
- 1; j
>= 0; j
--)
2620 __free_pages(scatterlist
[j
].page
, order
);
2625 scatterlist
[i
].page
= page
;
2632 * ipr_free_ucode_buffer - Frees a microcode download buffer
2633 * @p_dnld: scatter/gather list pointer
2635 * Free a DMA'able ucode download buffer previously allocated with
2636 * ipr_alloc_ucode_buffer
2641 static void ipr_free_ucode_buffer(struct ipr_sglist
*sglist
)
2645 for (i
= 0; i
< sglist
->num_sg
; i
++)
2646 __free_pages(sglist
->scatterlist
[i
].page
, sglist
->order
);
2652 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer
2653 * @sglist: scatter/gather list pointer
2654 * @buffer: buffer pointer
2655 * @len: buffer length
2657 * Copy a microcode image from a user buffer into a buffer allocated by
2658 * ipr_alloc_ucode_buffer
2661 * 0 on success / other on failure
2663 static int ipr_copy_ucode_buffer(struct ipr_sglist
*sglist
,
2664 u8
*buffer
, u32 len
)
2666 int bsize_elem
, i
, result
= 0;
2667 struct scatterlist
*scatterlist
;
2670 /* Determine the actual number of bytes per element */
2671 bsize_elem
= PAGE_SIZE
* (1 << sglist
->order
);
2673 scatterlist
= sglist
->scatterlist
;
2675 for (i
= 0; i
< (len
/ bsize_elem
); i
++, buffer
+= bsize_elem
) {
2676 kaddr
= kmap(scatterlist
[i
].page
);
2677 memcpy(kaddr
, buffer
, bsize_elem
);
2678 kunmap(scatterlist
[i
].page
);
2680 scatterlist
[i
].length
= bsize_elem
;
2688 if (len
% bsize_elem
) {
2689 kaddr
= kmap(scatterlist
[i
].page
);
2690 memcpy(kaddr
, buffer
, len
% bsize_elem
);
2691 kunmap(scatterlist
[i
].page
);
2693 scatterlist
[i
].length
= len
% bsize_elem
;
2696 sglist
->buffer_len
= len
;
2701 * ipr_build_ucode_ioadl - Build a microcode download IOADL
2702 * @ipr_cmd: ipr command struct
2703 * @sglist: scatter/gather list
2705 * Builds a microcode download IOA data list (IOADL).
2708 static void ipr_build_ucode_ioadl(struct ipr_cmnd
*ipr_cmd
,
2709 struct ipr_sglist
*sglist
)
2711 struct ipr_ioarcb
*ioarcb
= &ipr_cmd
->ioarcb
;
2712 struct ipr_ioadl_desc
*ioadl
= ipr_cmd
->ioadl
;
2713 struct scatterlist
*scatterlist
= sglist
->scatterlist
;
2716 ipr_cmd
->dma_use_sg
= sglist
->num_dma_sg
;
2717 ioarcb
->cmd_pkt
.flags_hi
|= IPR_FLAGS_HI_WRITE_NOT_READ
;
2718 ioarcb
->write_data_transfer_length
= cpu_to_be32(sglist
->buffer_len
);
2719 ioarcb
->write_ioadl_len
=
2720 cpu_to_be32(sizeof(struct ipr_ioadl_desc
) * ipr_cmd
->dma_use_sg
);
2722 for (i
= 0; i
< ipr_cmd
->dma_use_sg
; i
++) {
2723 ioadl
[i
].flags_and_data_len
=
2724 cpu_to_be32(IPR_IOADL_FLAGS_WRITE
| sg_dma_len(&scatterlist
[i
]));
2726 cpu_to_be32(sg_dma_address(&scatterlist
[i
]));
2729 ioadl
[i
-1].flags_and_data_len
|=
2730 cpu_to_be32(IPR_IOADL_FLAGS_LAST
);
2734 * ipr_update_ioa_ucode - Update IOA's microcode
2735 * @ioa_cfg: ioa config struct
2736 * @sglist: scatter/gather list
2738 * Initiate an adapter reset to update the IOA's microcode
2741 * 0 on success / -EIO on failure
2743 static int ipr_update_ioa_ucode(struct ipr_ioa_cfg
*ioa_cfg
,
2744 struct ipr_sglist
*sglist
)
2746 unsigned long lock_flags
;
2748 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, lock_flags
);
2750 if (ioa_cfg
->ucode_sglist
) {
2751 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
2752 dev_err(&ioa_cfg
->pdev
->dev
,
2753 "Microcode download already in progress\n");
2757 sglist
->num_dma_sg
= pci_map_sg(ioa_cfg
->pdev
, sglist
->scatterlist
,
2758 sglist
->num_sg
, DMA_TO_DEVICE
);
2760 if (!sglist
->num_dma_sg
) {
2761 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
2762 dev_err(&ioa_cfg
->pdev
->dev
,
2763 "Failed to map microcode download buffer!\n");
2767 ioa_cfg
->ucode_sglist
= sglist
;
2768 ipr_initiate_ioa_reset(ioa_cfg
, IPR_SHUTDOWN_NORMAL
);
2769 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
2770 wait_event(ioa_cfg
->reset_wait_q
, !ioa_cfg
->in_reset_reload
);
2772 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, lock_flags
);
2773 ioa_cfg
->ucode_sglist
= NULL
;
2774 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
2779 * ipr_store_update_fw - Update the firmware on the adapter
2780 * @class_dev: class_device struct
2782 * @count: buffer size
2784 * This function will update the firmware on the adapter.
2787 * count on success / other on failure
2789 static ssize_t
ipr_store_update_fw(struct class_device
*class_dev
,
2790 const char *buf
, size_t count
)
2792 struct Scsi_Host
*shost
= class_to_shost(class_dev
);
2793 struct ipr_ioa_cfg
*ioa_cfg
= (struct ipr_ioa_cfg
*)shost
->hostdata
;
2794 struct ipr_ucode_image_header
*image_hdr
;
2795 const struct firmware
*fw_entry
;
2796 struct ipr_sglist
*sglist
;
2799 int len
, result
, dnld_size
;
2801 if (!capable(CAP_SYS_ADMIN
))
2804 len
= snprintf(fname
, 99, "%s", buf
);
2805 fname
[len
-1] = '\0';
2807 if(request_firmware(&fw_entry
, fname
, &ioa_cfg
->pdev
->dev
)) {
2808 dev_err(&ioa_cfg
->pdev
->dev
, "Firmware file %s not found\n", fname
);
2812 image_hdr
= (struct ipr_ucode_image_header
*)fw_entry
->data
;
2814 if (be32_to_cpu(image_hdr
->header_length
) > fw_entry
->size
||
2815 (ioa_cfg
->vpd_cbs
->page3_data
.card_type
&&
2816 ioa_cfg
->vpd_cbs
->page3_data
.card_type
!= image_hdr
->card_type
)) {
2817 dev_err(&ioa_cfg
->pdev
->dev
, "Invalid microcode buffer\n");
2818 release_firmware(fw_entry
);
2822 src
= (u8
*)image_hdr
+ be32_to_cpu(image_hdr
->header_length
);
2823 dnld_size
= fw_entry
->size
- be32_to_cpu(image_hdr
->header_length
);
2824 sglist
= ipr_alloc_ucode_buffer(dnld_size
);
2827 dev_err(&ioa_cfg
->pdev
->dev
, "Microcode buffer allocation failed\n");
2828 release_firmware(fw_entry
);
2832 result
= ipr_copy_ucode_buffer(sglist
, src
, dnld_size
);
2835 dev_err(&ioa_cfg
->pdev
->dev
,
2836 "Microcode buffer copy to DMA buffer failed\n");
2840 result
= ipr_update_ioa_ucode(ioa_cfg
, sglist
);
2845 ipr_free_ucode_buffer(sglist
);
2846 release_firmware(fw_entry
);
2850 static struct class_device_attribute ipr_update_fw_attr
= {
2852 .name
= "update_fw",
2855 .store
= ipr_store_update_fw
2858 static struct class_device_attribute
*ipr_ioa_attrs
[] = {
2859 &ipr_fw_version_attr
,
2860 &ipr_log_level_attr
,
2861 &ipr_diagnostics_attr
,
2862 &ipr_ioa_state_attr
,
2863 &ipr_ioa_reset_attr
,
2864 &ipr_update_fw_attr
,
2865 &ipr_ioa_cache_attr
,
2869 #ifdef CONFIG_SCSI_IPR_DUMP
2871 * ipr_read_dump - Dump the adapter
2872 * @kobj: kobject struct
2875 * @count: buffer size
2878 * number of bytes printed to buffer
2880 static ssize_t
ipr_read_dump(struct kobject
*kobj
, char *buf
,
2881 loff_t off
, size_t count
)
2883 struct class_device
*cdev
= container_of(kobj
,struct class_device
,kobj
);
2884 struct Scsi_Host
*shost
= class_to_shost(cdev
);
2885 struct ipr_ioa_cfg
*ioa_cfg
= (struct ipr_ioa_cfg
*)shost
->hostdata
;
2886 struct ipr_dump
*dump
;
2887 unsigned long lock_flags
= 0;
2892 if (!capable(CAP_SYS_ADMIN
))
2895 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, lock_flags
);
2896 dump
= ioa_cfg
->dump
;
2898 if (ioa_cfg
->sdt_state
!= DUMP_OBTAINED
|| !dump
) {
2899 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
2902 kref_get(&dump
->kref
);
2903 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
2905 if (off
> dump
->driver_dump
.hdr
.len
) {
2906 kref_put(&dump
->kref
, ipr_release_dump
);
2910 if (off
+ count
> dump
->driver_dump
.hdr
.len
) {
2911 count
= dump
->driver_dump
.hdr
.len
- off
;
2915 if (count
&& off
< sizeof(dump
->driver_dump
)) {
2916 if (off
+ count
> sizeof(dump
->driver_dump
))
2917 len
= sizeof(dump
->driver_dump
) - off
;
2920 src
= (u8
*)&dump
->driver_dump
+ off
;
2921 memcpy(buf
, src
, len
);
2927 off
-= sizeof(dump
->driver_dump
);
2929 if (count
&& off
< offsetof(struct ipr_ioa_dump
, ioa_data
)) {
2930 if (off
+ count
> offsetof(struct ipr_ioa_dump
, ioa_data
))
2931 len
= offsetof(struct ipr_ioa_dump
, ioa_data
) - off
;
2934 src
= (u8
*)&dump
->ioa_dump
+ off
;
2935 memcpy(buf
, src
, len
);
2941 off
-= offsetof(struct ipr_ioa_dump
, ioa_data
);
2944 if ((off
& PAGE_MASK
) != ((off
+ count
) & PAGE_MASK
))
2945 len
= PAGE_ALIGN(off
) - off
;
2948 src
= (u8
*)dump
->ioa_dump
.ioa_data
[(off
& PAGE_MASK
) >> PAGE_SHIFT
];
2949 src
+= off
& ~PAGE_MASK
;
2950 memcpy(buf
, src
, len
);
2956 kref_put(&dump
->kref
, ipr_release_dump
);
2961 * ipr_alloc_dump - Prepare for adapter dump
2962 * @ioa_cfg: ioa config struct
2965 * 0 on success / other on failure
2967 static int ipr_alloc_dump(struct ipr_ioa_cfg
*ioa_cfg
)
2969 struct ipr_dump
*dump
;
2970 unsigned long lock_flags
= 0;
2973 dump
= kzalloc(sizeof(struct ipr_dump
), GFP_KERNEL
);
2976 ipr_err("Dump memory allocation failed\n");
2980 kref_init(&dump
->kref
);
2981 dump
->ioa_cfg
= ioa_cfg
;
2983 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, lock_flags
);
2985 if (INACTIVE
!= ioa_cfg
->sdt_state
) {
2986 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
2991 ioa_cfg
->dump
= dump
;
2992 ioa_cfg
->sdt_state
= WAIT_FOR_DUMP
;
2993 if (ioa_cfg
->ioa_is_dead
&& !ioa_cfg
->dump_taken
) {
2994 ioa_cfg
->dump_taken
= 1;
2995 schedule_work(&ioa_cfg
->work_q
);
2997 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
3004 * ipr_free_dump - Free adapter dump memory
3005 * @ioa_cfg: ioa config struct
3008 * 0 on success / other on failure
3010 static int ipr_free_dump(struct ipr_ioa_cfg
*ioa_cfg
)
3012 struct ipr_dump
*dump
;
3013 unsigned long lock_flags
= 0;
3017 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, lock_flags
);
3018 dump
= ioa_cfg
->dump
;
3020 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
3024 ioa_cfg
->dump
= NULL
;
3025 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
3027 kref_put(&dump
->kref
, ipr_release_dump
);
3034 * ipr_write_dump - Setup dump state of adapter
3035 * @kobj: kobject struct
3038 * @count: buffer size
3041 * number of bytes printed to buffer
3043 static ssize_t
ipr_write_dump(struct kobject
*kobj
, char *buf
,
3044 loff_t off
, size_t count
)
3046 struct class_device
*cdev
= container_of(kobj
,struct class_device
,kobj
);
3047 struct Scsi_Host
*shost
= class_to_shost(cdev
);
3048 struct ipr_ioa_cfg
*ioa_cfg
= (struct ipr_ioa_cfg
*)shost
->hostdata
;
3051 if (!capable(CAP_SYS_ADMIN
))
3055 rc
= ipr_alloc_dump(ioa_cfg
);
3056 else if (buf
[0] == '0')
3057 rc
= ipr_free_dump(ioa_cfg
);
3067 static struct bin_attribute ipr_dump_attr
= {
3070 .mode
= S_IRUSR
| S_IWUSR
,
3073 .read
= ipr_read_dump
,
3074 .write
= ipr_write_dump
3077 static int ipr_free_dump(struct ipr_ioa_cfg
*ioa_cfg
) { return 0; };
3081 * ipr_change_queue_depth - Change the device's queue depth
3082 * @sdev: scsi device struct
3083 * @qdepth: depth to set
3088 static int ipr_change_queue_depth(struct scsi_device
*sdev
, int qdepth
)
3090 struct ipr_ioa_cfg
*ioa_cfg
= (struct ipr_ioa_cfg
*)sdev
->host
->hostdata
;
3091 struct ipr_resource_entry
*res
;
3092 unsigned long lock_flags
= 0;
3094 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, lock_flags
);
3095 res
= (struct ipr_resource_entry
*)sdev
->hostdata
;
3097 if (res
&& ipr_is_gata(res
) && qdepth
> IPR_MAX_CMD_PER_ATA_LUN
)
3098 qdepth
= IPR_MAX_CMD_PER_ATA_LUN
;
3099 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
3101 scsi_adjust_queue_depth(sdev
, scsi_get_tag_type(sdev
), qdepth
);
3102 return sdev
->queue_depth
;
3106 * ipr_change_queue_type - Change the device's queue type
3107 * @dsev: scsi device struct
3108 * @tag_type: type of tags to use
3111 * actual queue type set
3113 static int ipr_change_queue_type(struct scsi_device
*sdev
, int tag_type
)
3115 struct ipr_ioa_cfg
*ioa_cfg
= (struct ipr_ioa_cfg
*)sdev
->host
->hostdata
;
3116 struct ipr_resource_entry
*res
;
3117 unsigned long lock_flags
= 0;
3119 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, lock_flags
);
3120 res
= (struct ipr_resource_entry
*)sdev
->hostdata
;
3123 if (ipr_is_gscsi(res
) && sdev
->tagged_supported
) {
3125 * We don't bother quiescing the device here since the
3126 * adapter firmware does it for us.
3128 scsi_set_tag_type(sdev
, tag_type
);
3131 scsi_activate_tcq(sdev
, sdev
->queue_depth
);
3133 scsi_deactivate_tcq(sdev
, sdev
->queue_depth
);
3139 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
3144 * ipr_show_adapter_handle - Show the adapter's resource handle for this device
3145 * @dev: device struct
3149 * number of bytes printed to buffer
3151 static ssize_t
ipr_show_adapter_handle(struct device
*dev
, struct device_attribute
*attr
, char *buf
)
3153 struct scsi_device
*sdev
= to_scsi_device(dev
);
3154 struct ipr_ioa_cfg
*ioa_cfg
= (struct ipr_ioa_cfg
*)sdev
->host
->hostdata
;
3155 struct ipr_resource_entry
*res
;
3156 unsigned long lock_flags
= 0;
3157 ssize_t len
= -ENXIO
;
3159 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, lock_flags
);
3160 res
= (struct ipr_resource_entry
*)sdev
->hostdata
;
3162 len
= snprintf(buf
, PAGE_SIZE
, "%08X\n", res
->cfgte
.res_handle
);
3163 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
3167 static struct device_attribute ipr_adapter_handle_attr
= {
3169 .name
= "adapter_handle",
3172 .show
= ipr_show_adapter_handle
3175 static struct device_attribute
*ipr_dev_attrs
[] = {
3176 &ipr_adapter_handle_attr
,
3181 * ipr_biosparam - Return the HSC mapping
3182 * @sdev: scsi device struct
3183 * @block_device: block device pointer
3184 * @capacity: capacity of the device
3185 * @parm: Array containing returned HSC values.
3187 * This function generates the HSC parms that fdisk uses.
3188 * We want to make sure we return something that places partitions
3189 * on 4k boundaries for best performance with the IOA.
3194 static int ipr_biosparam(struct scsi_device
*sdev
,
3195 struct block_device
*block_device
,
3196 sector_t capacity
, int *parm
)
3204 cylinders
= capacity
;
3205 sector_div(cylinders
, (128 * 32));
3210 parm
[2] = cylinders
;
3216 * ipr_find_starget - Find target based on bus/target.
3217 * @starget: scsi target struct
3220 * resource entry pointer if found / NULL if not found
3222 static struct ipr_resource_entry
*ipr_find_starget(struct scsi_target
*starget
)
3224 struct Scsi_Host
*shost
= dev_to_shost(&starget
->dev
);
3225 struct ipr_ioa_cfg
*ioa_cfg
= (struct ipr_ioa_cfg
*) shost
->hostdata
;
3226 struct ipr_resource_entry
*res
;
3228 list_for_each_entry(res
, &ioa_cfg
->used_res_q
, queue
) {
3229 if ((res
->cfgte
.res_addr
.bus
== starget
->channel
) &&
3230 (res
->cfgte
.res_addr
.target
== starget
->id
) &&
3231 (res
->cfgte
.res_addr
.lun
== 0)) {
3239 static struct ata_port_info sata_port_info
;
3242 * ipr_target_alloc - Prepare for commands to a SCSI target
3243 * @starget: scsi target struct
3245 * If the device is a SATA device, this function allocates an
3246 * ATA port with libata, else it does nothing.
3249 * 0 on success / non-0 on failure
3251 static int ipr_target_alloc(struct scsi_target
*starget
)
3253 struct Scsi_Host
*shost
= dev_to_shost(&starget
->dev
);
3254 struct ipr_ioa_cfg
*ioa_cfg
= (struct ipr_ioa_cfg
*) shost
->hostdata
;
3255 struct ipr_sata_port
*sata_port
;
3256 struct ata_port
*ap
;
3257 struct ipr_resource_entry
*res
;
3258 unsigned long lock_flags
;
3260 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, lock_flags
);
3261 res
= ipr_find_starget(starget
);
3262 starget
->hostdata
= NULL
;
3264 if (res
&& ipr_is_gata(res
)) {
3265 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
3266 sata_port
= kzalloc(sizeof(*sata_port
), GFP_KERNEL
);
3270 ap
= ata_sas_port_alloc(&ioa_cfg
->ata_host
, &sata_port_info
, shost
);
3272 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, lock_flags
);
3273 sata_port
->ioa_cfg
= ioa_cfg
;
3275 sata_port
->res
= res
;
3277 res
->sata_port
= sata_port
;
3278 ap
->private_data
= sata_port
;
3279 starget
->hostdata
= sata_port
;
3285 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
3291 * ipr_target_destroy - Destroy a SCSI target
3292 * @starget: scsi target struct
3294 * If the device was a SATA device, this function frees the libata
3295 * ATA port, else it does nothing.
3298 static void ipr_target_destroy(struct scsi_target
*starget
)
3300 struct ipr_sata_port
*sata_port
= starget
->hostdata
;
3303 starget
->hostdata
= NULL
;
3304 ata_sas_port_destroy(sata_port
->ap
);
3310 * ipr_find_sdev - Find device based on bus/target/lun.
3311 * @sdev: scsi device struct
3314 * resource entry pointer if found / NULL if not found
3316 static struct ipr_resource_entry
*ipr_find_sdev(struct scsi_device
*sdev
)
3318 struct ipr_ioa_cfg
*ioa_cfg
= (struct ipr_ioa_cfg
*) sdev
->host
->hostdata
;
3319 struct ipr_resource_entry
*res
;
3321 list_for_each_entry(res
, &ioa_cfg
->used_res_q
, queue
) {
3322 if ((res
->cfgte
.res_addr
.bus
== sdev
->channel
) &&
3323 (res
->cfgte
.res_addr
.target
== sdev
->id
) &&
3324 (res
->cfgte
.res_addr
.lun
== sdev
->lun
))
3332 * ipr_slave_destroy - Unconfigure a SCSI device
3333 * @sdev: scsi device struct
3338 static void ipr_slave_destroy(struct scsi_device
*sdev
)
3340 struct ipr_resource_entry
*res
;
3341 struct ipr_ioa_cfg
*ioa_cfg
;
3342 unsigned long lock_flags
= 0;
3344 ioa_cfg
= (struct ipr_ioa_cfg
*) sdev
->host
->hostdata
;
3346 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, lock_flags
);
3347 res
= (struct ipr_resource_entry
*) sdev
->hostdata
;
3350 ata_port_disable(res
->sata_port
->ap
);
3351 sdev
->hostdata
= NULL
;
3353 res
->sata_port
= NULL
;
3355 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
3359 * ipr_slave_configure - Configure a SCSI device
3360 * @sdev: scsi device struct
3362 * This function configures the specified scsi device.
3367 static int ipr_slave_configure(struct scsi_device
*sdev
)
3369 struct ipr_ioa_cfg
*ioa_cfg
= (struct ipr_ioa_cfg
*) sdev
->host
->hostdata
;
3370 struct ipr_resource_entry
*res
;
3371 unsigned long lock_flags
= 0;
3373 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, lock_flags
);
3374 res
= sdev
->hostdata
;
3376 if (ipr_is_af_dasd_device(res
))
3377 sdev
->type
= TYPE_RAID
;
3378 if (ipr_is_af_dasd_device(res
) || ipr_is_ioa_resource(res
)) {
3379 sdev
->scsi_level
= 4;
3380 sdev
->no_uld_attach
= 1;
3382 if (ipr_is_vset_device(res
)) {
3383 sdev
->timeout
= IPR_VSET_RW_TIMEOUT
;
3384 blk_queue_max_sectors(sdev
->request_queue
, IPR_VSET_MAX_SECTORS
);
3386 if (ipr_is_vset_device(res
) || ipr_is_scsi_disk(res
))
3387 sdev
->allow_restart
= 1;
3388 if (ipr_is_gata(res
) && res
->sata_port
) {
3389 scsi_adjust_queue_depth(sdev
, 0, IPR_MAX_CMD_PER_ATA_LUN
);
3390 ata_sas_slave_configure(sdev
, res
->sata_port
->ap
);
3392 scsi_adjust_queue_depth(sdev
, 0, sdev
->host
->cmd_per_lun
);
3395 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
3400 * ipr_ata_slave_alloc - Prepare for commands to a SATA device
3401 * @sdev: scsi device struct
3403 * This function initializes an ATA port so that future commands
3404 * sent through queuecommand will work.
3409 static int ipr_ata_slave_alloc(struct scsi_device
*sdev
)
3411 struct ipr_sata_port
*sata_port
= NULL
;
3415 if (sdev
->sdev_target
)
3416 sata_port
= sdev
->sdev_target
->hostdata
;
3418 rc
= ata_sas_port_init(sata_port
->ap
);
3420 ipr_slave_destroy(sdev
);
3427 * ipr_slave_alloc - Prepare for commands to a device.
3428 * @sdev: scsi device struct
3430 * This function saves a pointer to the resource entry
3431 * in the scsi device struct if the device exists. We
3432 * can then use this pointer in ipr_queuecommand when
3433 * handling new commands.
3436 * 0 on success / -ENXIO if device does not exist
3438 static int ipr_slave_alloc(struct scsi_device
*sdev
)
3440 struct ipr_ioa_cfg
*ioa_cfg
= (struct ipr_ioa_cfg
*) sdev
->host
->hostdata
;
3441 struct ipr_resource_entry
*res
;
3442 unsigned long lock_flags
;
3445 sdev
->hostdata
= NULL
;
3447 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, lock_flags
);
3449 res
= ipr_find_sdev(sdev
);
3454 sdev
->hostdata
= res
;
3455 if (!ipr_is_naca_model(res
))
3456 res
->needs_sync_complete
= 1;
3458 if (ipr_is_gata(res
)) {
3459 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
3460 return ipr_ata_slave_alloc(sdev
);
3464 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
3470 * ipr_eh_host_reset - Reset the host adapter
3471 * @scsi_cmd: scsi command struct
3476 static int __ipr_eh_host_reset(struct scsi_cmnd
* scsi_cmd
)
3478 struct ipr_ioa_cfg
*ioa_cfg
;
3482 ioa_cfg
= (struct ipr_ioa_cfg
*) scsi_cmd
->device
->host
->hostdata
;
3484 dev_err(&ioa_cfg
->pdev
->dev
,
3485 "Adapter being reset as a result of error recovery.\n");
3487 if (WAIT_FOR_DUMP
== ioa_cfg
->sdt_state
)
3488 ioa_cfg
->sdt_state
= GET_DUMP
;
3490 rc
= ipr_reset_reload(ioa_cfg
, IPR_SHUTDOWN_ABBREV
);
3496 static int ipr_eh_host_reset(struct scsi_cmnd
* cmd
)
3500 spin_lock_irq(cmd
->device
->host
->host_lock
);
3501 rc
= __ipr_eh_host_reset(cmd
);
3502 spin_unlock_irq(cmd
->device
->host
->host_lock
);
3508 * ipr_device_reset - Reset the device
3509 * @ioa_cfg: ioa config struct
3510 * @res: resource entry struct
3512 * This function issues a device reset to the affected device.
3513 * If the device is a SCSI device, a LUN reset will be sent
3514 * to the device first. If that does not work, a target reset
3515 * will be sent. If the device is a SATA device, a PHY reset will
3519 * 0 on success / non-zero on failure
3521 static int ipr_device_reset(struct ipr_ioa_cfg
*ioa_cfg
,
3522 struct ipr_resource_entry
*res
)
3524 struct ipr_cmnd
*ipr_cmd
;
3525 struct ipr_ioarcb
*ioarcb
;
3526 struct ipr_cmd_pkt
*cmd_pkt
;
3527 struct ipr_ioarcb_ata_regs
*regs
;
3531 ipr_cmd
= ipr_get_free_ipr_cmnd(ioa_cfg
);
3532 ioarcb
= &ipr_cmd
->ioarcb
;
3533 cmd_pkt
= &ioarcb
->cmd_pkt
;
3534 regs
= &ioarcb
->add_data
.u
.regs
;
3536 ioarcb
->res_handle
= res
->cfgte
.res_handle
;
3537 cmd_pkt
->request_type
= IPR_RQTYPE_IOACMD
;
3538 cmd_pkt
->cdb
[0] = IPR_RESET_DEVICE
;
3539 if (ipr_is_gata(res
)) {
3540 cmd_pkt
->cdb
[2] = IPR_ATA_PHY_RESET
;
3541 ioarcb
->add_cmd_parms_len
= cpu_to_be32(sizeof(regs
->flags
));
3542 regs
->flags
|= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION
;
3545 ipr_send_blocking_cmd(ipr_cmd
, ipr_timeout
, IPR_DEVICE_RESET_TIMEOUT
);
3546 ioasc
= be32_to_cpu(ipr_cmd
->ioasa
.ioasc
);
3547 list_add_tail(&ipr_cmd
->queue
, &ioa_cfg
->free_q
);
3548 if (ipr_is_gata(res
) && res
->sata_port
&& ioasc
!= IPR_IOASC_IOA_WAS_RESET
)
3549 memcpy(&res
->sata_port
->ioasa
, &ipr_cmd
->ioasa
.u
.gata
,
3550 sizeof(struct ipr_ioasa_gata
));
3553 return (IPR_IOASC_SENSE_KEY(ioasc
) ? -EIO
: 0);
3557 * ipr_sata_reset - Reset the SATA port
3558 * @ap: SATA port to reset
3559 * @classes: class of the attached device
3561 * This function issues a SATA phy reset to the affected ATA port.
3564 * 0 on success / non-zero on failure
3566 static int ipr_sata_reset(struct ata_port
*ap
, unsigned int *classes
)
3568 struct ipr_sata_port
*sata_port
= ap
->private_data
;
3569 struct ipr_ioa_cfg
*ioa_cfg
= sata_port
->ioa_cfg
;
3570 struct ipr_resource_entry
*res
;
3571 unsigned long lock_flags
= 0;
3575 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, lock_flags
);
3576 while(ioa_cfg
->in_reset_reload
) {
3577 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
3578 wait_event(ioa_cfg
->reset_wait_q
, !ioa_cfg
->in_reset_reload
);
3579 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, lock_flags
);
3582 res
= sata_port
->res
;
3584 rc
= ipr_device_reset(ioa_cfg
, res
);
3585 switch(res
->cfgte
.proto
) {
3586 case IPR_PROTO_SATA
:
3587 case IPR_PROTO_SAS_STP
:
3588 *classes
= ATA_DEV_ATA
;
3590 case IPR_PROTO_SATA_ATAPI
:
3591 case IPR_PROTO_SAS_STP_ATAPI
:
3592 *classes
= ATA_DEV_ATAPI
;
3595 *classes
= ATA_DEV_UNKNOWN
;
3600 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
3606 * ipr_eh_dev_reset - Reset the device
3607 * @scsi_cmd: scsi command struct
3609 * This function issues a device reset to the affected device.
3610 * A LUN reset will be sent to the device first. If that does
3611 * not work, a target reset will be sent.
3616 static int __ipr_eh_dev_reset(struct scsi_cmnd
* scsi_cmd
)
3618 struct ipr_cmnd
*ipr_cmd
;
3619 struct ipr_ioa_cfg
*ioa_cfg
;
3620 struct ipr_resource_entry
*res
;
3621 struct ata_port
*ap
;
3625 ioa_cfg
= (struct ipr_ioa_cfg
*) scsi_cmd
->device
->host
->hostdata
;
3626 res
= scsi_cmd
->device
->hostdata
;
3632 * If we are currently going through reset/reload, return failed. This will force the
3633 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
3636 if (ioa_cfg
->in_reset_reload
)
3638 if (ioa_cfg
->ioa_is_dead
)
3641 list_for_each_entry(ipr_cmd
, &ioa_cfg
->pending_q
, queue
) {
3642 if (ipr_cmd
->ioarcb
.res_handle
== res
->cfgte
.res_handle
) {
3643 if (ipr_cmd
->scsi_cmd
)
3644 ipr_cmd
->done
= ipr_scsi_eh_done
;
3648 res
->resetting_device
= 1;
3649 scmd_printk(KERN_ERR
, scsi_cmd
, "Resetting device\n");
3651 if (ipr_is_gata(res
) && res
->sata_port
) {
3652 ap
= res
->sata_port
->ap
;
3653 spin_unlock_irq(scsi_cmd
->device
->host
->host_lock
);
3654 ata_do_eh(ap
, NULL
, NULL
, ipr_sata_reset
, NULL
);
3655 spin_lock_irq(scsi_cmd
->device
->host
->host_lock
);
3657 rc
= ipr_device_reset(ioa_cfg
, res
);
3658 res
->resetting_device
= 0;
3661 return (rc
? FAILED
: SUCCESS
);
3664 static int ipr_eh_dev_reset(struct scsi_cmnd
* cmd
)
3668 spin_lock_irq(cmd
->device
->host
->host_lock
);
3669 rc
= __ipr_eh_dev_reset(cmd
);
3670 spin_unlock_irq(cmd
->device
->host
->host_lock
);
3676 * ipr_bus_reset_done - Op done function for bus reset.
3677 * @ipr_cmd: ipr command struct
3679 * This function is the op done function for a bus reset
3684 static void ipr_bus_reset_done(struct ipr_cmnd
*ipr_cmd
)
3686 struct ipr_ioa_cfg
*ioa_cfg
= ipr_cmd
->ioa_cfg
;
3687 struct ipr_resource_entry
*res
;
3690 list_for_each_entry(res
, &ioa_cfg
->used_res_q
, queue
) {
3691 if (!memcmp(&res
->cfgte
.res_handle
, &ipr_cmd
->ioarcb
.res_handle
,
3692 sizeof(res
->cfgte
.res_handle
))) {
3693 scsi_report_bus_reset(ioa_cfg
->host
, res
->cfgte
.res_addr
.bus
);
3699 * If abort has not completed, indicate the reset has, else call the
3700 * abort's done function to wake the sleeping eh thread
3702 if (ipr_cmd
->sibling
->sibling
)
3703 ipr_cmd
->sibling
->sibling
= NULL
;
3705 ipr_cmd
->sibling
->done(ipr_cmd
->sibling
);
3707 list_add_tail(&ipr_cmd
->queue
, &ioa_cfg
->free_q
);
3712 * ipr_abort_timeout - An abort task has timed out
3713 * @ipr_cmd: ipr command struct
3715 * This function handles when an abort task times out. If this
3716 * happens we issue a bus reset since we have resources tied
3717 * up that must be freed before returning to the midlayer.
3722 static void ipr_abort_timeout(struct ipr_cmnd
*ipr_cmd
)
3724 struct ipr_cmnd
*reset_cmd
;
3725 struct ipr_ioa_cfg
*ioa_cfg
= ipr_cmd
->ioa_cfg
;
3726 struct ipr_cmd_pkt
*cmd_pkt
;
3727 unsigned long lock_flags
= 0;
3730 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, lock_flags
);
3731 if (ipr_cmd
->completion
.done
|| ioa_cfg
->in_reset_reload
) {
3732 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
3736 sdev_printk(KERN_ERR
, ipr_cmd
->u
.sdev
, "Abort timed out. Resetting bus.\n");
3737 reset_cmd
= ipr_get_free_ipr_cmnd(ioa_cfg
);
3738 ipr_cmd
->sibling
= reset_cmd
;
3739 reset_cmd
->sibling
= ipr_cmd
;
3740 reset_cmd
->ioarcb
.res_handle
= ipr_cmd
->ioarcb
.res_handle
;
3741 cmd_pkt
= &reset_cmd
->ioarcb
.cmd_pkt
;
3742 cmd_pkt
->request_type
= IPR_RQTYPE_IOACMD
;
3743 cmd_pkt
->cdb
[0] = IPR_RESET_DEVICE
;
3744 cmd_pkt
->cdb
[2] = IPR_RESET_TYPE_SELECT
| IPR_BUS_RESET
;
3746 ipr_do_req(reset_cmd
, ipr_bus_reset_done
, ipr_timeout
, IPR_DEVICE_RESET_TIMEOUT
);
3747 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
3752 * ipr_cancel_op - Cancel specified op
3753 * @scsi_cmd: scsi command struct
3755 * This function cancels specified op.
3760 static int ipr_cancel_op(struct scsi_cmnd
* scsi_cmd
)
3762 struct ipr_cmnd
*ipr_cmd
;
3763 struct ipr_ioa_cfg
*ioa_cfg
;
3764 struct ipr_resource_entry
*res
;
3765 struct ipr_cmd_pkt
*cmd_pkt
;
3770 ioa_cfg
= (struct ipr_ioa_cfg
*)scsi_cmd
->device
->host
->hostdata
;
3771 res
= scsi_cmd
->device
->hostdata
;
3773 /* If we are currently going through reset/reload, return failed.
3774 * This will force the mid-layer to call ipr_eh_host_reset,
3775 * which will then go to sleep and wait for the reset to complete
3777 if (ioa_cfg
->in_reset_reload
|| ioa_cfg
->ioa_is_dead
)
3779 if (!res
|| !ipr_is_gscsi(res
))
3782 list_for_each_entry(ipr_cmd
, &ioa_cfg
->pending_q
, queue
) {
3783 if (ipr_cmd
->scsi_cmd
== scsi_cmd
) {
3784 ipr_cmd
->done
= ipr_scsi_eh_done
;
3793 ipr_cmd
= ipr_get_free_ipr_cmnd(ioa_cfg
);
3794 ipr_cmd
->ioarcb
.res_handle
= res
->cfgte
.res_handle
;
3795 cmd_pkt
= &ipr_cmd
->ioarcb
.cmd_pkt
;
3796 cmd_pkt
->request_type
= IPR_RQTYPE_IOACMD
;
3797 cmd_pkt
->cdb
[0] = IPR_CANCEL_ALL_REQUESTS
;
3798 ipr_cmd
->u
.sdev
= scsi_cmd
->device
;
3800 scmd_printk(KERN_ERR
, scsi_cmd
, "Aborting command: %02X\n",
3802 ipr_send_blocking_cmd(ipr_cmd
, ipr_abort_timeout
, IPR_CANCEL_ALL_TIMEOUT
);
3803 ioasc
= be32_to_cpu(ipr_cmd
->ioasa
.ioasc
);
3806 * If the abort task timed out and we sent a bus reset, we will get
3807 * one the following responses to the abort
3809 if (ioasc
== IPR_IOASC_BUS_WAS_RESET
|| ioasc
== IPR_IOASC_SYNC_REQUIRED
) {
3814 list_add_tail(&ipr_cmd
->queue
, &ioa_cfg
->free_q
);
3815 if (!ipr_is_naca_model(res
))
3816 res
->needs_sync_complete
= 1;
3819 return (IPR_IOASC_SENSE_KEY(ioasc
) ? FAILED
: SUCCESS
);
3823 * ipr_eh_abort - Abort a single op
3824 * @scsi_cmd: scsi command struct
3829 static int ipr_eh_abort(struct scsi_cmnd
* scsi_cmd
)
3831 unsigned long flags
;
3836 spin_lock_irqsave(scsi_cmd
->device
->host
->host_lock
, flags
);
3837 rc
= ipr_cancel_op(scsi_cmd
);
3838 spin_unlock_irqrestore(scsi_cmd
->device
->host
->host_lock
, flags
);
3845 * ipr_handle_other_interrupt - Handle "other" interrupts
3846 * @ioa_cfg: ioa config struct
3847 * @int_reg: interrupt register
3850 * IRQ_NONE / IRQ_HANDLED
3852 static irqreturn_t
ipr_handle_other_interrupt(struct ipr_ioa_cfg
*ioa_cfg
,
3853 volatile u32 int_reg
)
3855 irqreturn_t rc
= IRQ_HANDLED
;
3857 if (int_reg
& IPR_PCII_IOA_TRANS_TO_OPER
) {
3858 /* Mask the interrupt */
3859 writel(IPR_PCII_IOA_TRANS_TO_OPER
, ioa_cfg
->regs
.set_interrupt_mask_reg
);
3861 /* Clear the interrupt */
3862 writel(IPR_PCII_IOA_TRANS_TO_OPER
, ioa_cfg
->regs
.clr_interrupt_reg
);
3863 int_reg
= readl(ioa_cfg
->regs
.sense_interrupt_reg
);
3865 list_del(&ioa_cfg
->reset_cmd
->queue
);
3866 del_timer(&ioa_cfg
->reset_cmd
->timer
);
3867 ipr_reset_ioa_job(ioa_cfg
->reset_cmd
);
3869 if (int_reg
& IPR_PCII_IOA_UNIT_CHECKED
)
3870 ioa_cfg
->ioa_unit_checked
= 1;
3872 dev_err(&ioa_cfg
->pdev
->dev
,
3873 "Permanent IOA failure. 0x%08X\n", int_reg
);
3875 if (WAIT_FOR_DUMP
== ioa_cfg
->sdt_state
)
3876 ioa_cfg
->sdt_state
= GET_DUMP
;
3878 ipr_mask_and_clear_interrupts(ioa_cfg
, ~0);
3879 ipr_initiate_ioa_reset(ioa_cfg
, IPR_SHUTDOWN_NONE
);
3886 * ipr_isr - Interrupt service routine
3888 * @devp: pointer to ioa config struct
3891 * IRQ_NONE / IRQ_HANDLED
3893 static irqreturn_t
ipr_isr(int irq
, void *devp
)
3895 struct ipr_ioa_cfg
*ioa_cfg
= (struct ipr_ioa_cfg
*)devp
;
3896 unsigned long lock_flags
= 0;
3897 volatile u32 int_reg
, int_mask_reg
;
3900 struct ipr_cmnd
*ipr_cmd
;
3901 irqreturn_t rc
= IRQ_NONE
;
3903 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, lock_flags
);
3905 /* If interrupts are disabled, ignore the interrupt */
3906 if (!ioa_cfg
->allow_interrupts
) {
3907 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
3911 int_mask_reg
= readl(ioa_cfg
->regs
.sense_interrupt_mask_reg
);
3912 int_reg
= readl(ioa_cfg
->regs
.sense_interrupt_reg
) & ~int_mask_reg
;
3914 /* If an interrupt on the adapter did not occur, ignore it */
3915 if (unlikely((int_reg
& IPR_PCII_OPER_INTERRUPTS
) == 0)) {
3916 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
3923 while ((be32_to_cpu(*ioa_cfg
->hrrq_curr
) & IPR_HRRQ_TOGGLE_BIT
) ==
3924 ioa_cfg
->toggle_bit
) {
3926 cmd_index
= (be32_to_cpu(*ioa_cfg
->hrrq_curr
) &
3927 IPR_HRRQ_REQ_RESP_HANDLE_MASK
) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT
;
3929 if (unlikely(cmd_index
>= IPR_NUM_CMD_BLKS
)) {
3930 ioa_cfg
->errors_logged
++;
3931 dev_err(&ioa_cfg
->pdev
->dev
, "Invalid response handle from IOA\n");
3933 if (WAIT_FOR_DUMP
== ioa_cfg
->sdt_state
)
3934 ioa_cfg
->sdt_state
= GET_DUMP
;
3936 ipr_initiate_ioa_reset(ioa_cfg
, IPR_SHUTDOWN_NONE
);
3937 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
3941 ipr_cmd
= ioa_cfg
->ipr_cmnd_list
[cmd_index
];
3943 ioasc
= be32_to_cpu(ipr_cmd
->ioasa
.ioasc
);
3945 ipr_trc_hook(ipr_cmd
, IPR_TRACE_FINISH
, ioasc
);
3947 list_del(&ipr_cmd
->queue
);
3948 del_timer(&ipr_cmd
->timer
);
3949 ipr_cmd
->done(ipr_cmd
);
3953 if (ioa_cfg
->hrrq_curr
< ioa_cfg
->hrrq_end
) {
3954 ioa_cfg
->hrrq_curr
++;
3956 ioa_cfg
->hrrq_curr
= ioa_cfg
->hrrq_start
;
3957 ioa_cfg
->toggle_bit
^= 1u;
3961 if (ipr_cmd
!= NULL
) {
3962 /* Clear the PCI interrupt */
3963 writel(IPR_PCII_HRRQ_UPDATED
, ioa_cfg
->regs
.clr_interrupt_reg
);
3964 int_reg
= readl(ioa_cfg
->regs
.sense_interrupt_reg
) & ~int_mask_reg
;
3969 if (unlikely(rc
== IRQ_NONE
))
3970 rc
= ipr_handle_other_interrupt(ioa_cfg
, int_reg
);
3972 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
3977 * ipr_build_ioadl - Build a scatter/gather list and map the buffer
3978 * @ioa_cfg: ioa config struct
3979 * @ipr_cmd: ipr command struct
3982 * 0 on success / -1 on failure
3984 static int ipr_build_ioadl(struct ipr_ioa_cfg
*ioa_cfg
,
3985 struct ipr_cmnd
*ipr_cmd
)
3988 struct scatterlist
*sglist
;
3990 u32 ioadl_flags
= 0;
3991 struct scsi_cmnd
*scsi_cmd
= ipr_cmd
->scsi_cmd
;
3992 struct ipr_ioarcb
*ioarcb
= &ipr_cmd
->ioarcb
;
3993 struct ipr_ioadl_desc
*ioadl
= ipr_cmd
->ioadl
;
3995 length
= scsi_cmd
->request_bufflen
;
4000 if (scsi_cmd
->use_sg
) {
4001 ipr_cmd
->dma_use_sg
= pci_map_sg(ioa_cfg
->pdev
,
4002 scsi_cmd
->request_buffer
,
4004 scsi_cmd
->sc_data_direction
);
4006 if (scsi_cmd
->sc_data_direction
== DMA_TO_DEVICE
) {
4007 ioadl_flags
= IPR_IOADL_FLAGS_WRITE
;
4008 ioarcb
->cmd_pkt
.flags_hi
|= IPR_FLAGS_HI_WRITE_NOT_READ
;
4009 ioarcb
->write_data_transfer_length
= cpu_to_be32(length
);
4010 ioarcb
->write_ioadl_len
=
4011 cpu_to_be32(sizeof(struct ipr_ioadl_desc
) * ipr_cmd
->dma_use_sg
);
4012 } else if (scsi_cmd
->sc_data_direction
== DMA_FROM_DEVICE
) {
4013 ioadl_flags
= IPR_IOADL_FLAGS_READ
;
4014 ioarcb
->read_data_transfer_length
= cpu_to_be32(length
);
4015 ioarcb
->read_ioadl_len
=
4016 cpu_to_be32(sizeof(struct ipr_ioadl_desc
) * ipr_cmd
->dma_use_sg
);
4019 sglist
= scsi_cmd
->request_buffer
;
4021 for (i
= 0; i
< ipr_cmd
->dma_use_sg
; i
++) {
4022 ioadl
[i
].flags_and_data_len
=
4023 cpu_to_be32(ioadl_flags
| sg_dma_len(&sglist
[i
]));
4025 cpu_to_be32(sg_dma_address(&sglist
[i
]));
4028 if (likely(ipr_cmd
->dma_use_sg
)) {
4029 ioadl
[i
-1].flags_and_data_len
|=
4030 cpu_to_be32(IPR_IOADL_FLAGS_LAST
);
4033 dev_err(&ioa_cfg
->pdev
->dev
, "pci_map_sg failed!\n");
4035 if (scsi_cmd
->sc_data_direction
== DMA_TO_DEVICE
) {
4036 ioadl_flags
= IPR_IOADL_FLAGS_WRITE
;
4037 ioarcb
->cmd_pkt
.flags_hi
|= IPR_FLAGS_HI_WRITE_NOT_READ
;
4038 ioarcb
->write_data_transfer_length
= cpu_to_be32(length
);
4039 ioarcb
->write_ioadl_len
= cpu_to_be32(sizeof(struct ipr_ioadl_desc
));
4040 } else if (scsi_cmd
->sc_data_direction
== DMA_FROM_DEVICE
) {
4041 ioadl_flags
= IPR_IOADL_FLAGS_READ
;
4042 ioarcb
->read_data_transfer_length
= cpu_to_be32(length
);
4043 ioarcb
->read_ioadl_len
= cpu_to_be32(sizeof(struct ipr_ioadl_desc
));
4046 ipr_cmd
->dma_handle
= pci_map_single(ioa_cfg
->pdev
,
4047 scsi_cmd
->request_buffer
, length
,
4048 scsi_cmd
->sc_data_direction
);
4050 if (likely(!pci_dma_mapping_error(ipr_cmd
->dma_handle
))) {
4051 ipr_cmd
->dma_use_sg
= 1;
4052 ioadl
[0].flags_and_data_len
=
4053 cpu_to_be32(ioadl_flags
| length
| IPR_IOADL_FLAGS_LAST
);
4054 ioadl
[0].address
= cpu_to_be32(ipr_cmd
->dma_handle
);
4057 dev_err(&ioa_cfg
->pdev
->dev
, "pci_map_single failed!\n");
4064 * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes
4065 * @scsi_cmd: scsi command struct
4070 static u8
ipr_get_task_attributes(struct scsi_cmnd
*scsi_cmd
)
4073 u8 rc
= IPR_FLAGS_LO_UNTAGGED_TASK
;
4075 if (scsi_populate_tag_msg(scsi_cmd
, tag
)) {
4077 case MSG_SIMPLE_TAG
:
4078 rc
= IPR_FLAGS_LO_SIMPLE_TASK
;
4081 rc
= IPR_FLAGS_LO_HEAD_OF_Q_TASK
;
4083 case MSG_ORDERED_TAG
:
4084 rc
= IPR_FLAGS_LO_ORDERED_TASK
;
4093 * ipr_erp_done - Process completion of ERP for a device
4094 * @ipr_cmd: ipr command struct
4096 * This function copies the sense buffer into the scsi_cmd
4097 * struct and pushes the scsi_done function.
4102 static void ipr_erp_done(struct ipr_cmnd
*ipr_cmd
)
4104 struct scsi_cmnd
*scsi_cmd
= ipr_cmd
->scsi_cmd
;
4105 struct ipr_resource_entry
*res
= scsi_cmd
->device
->hostdata
;
4106 struct ipr_ioa_cfg
*ioa_cfg
= ipr_cmd
->ioa_cfg
;
4107 u32 ioasc
= be32_to_cpu(ipr_cmd
->ioasa
.ioasc
);
4109 if (IPR_IOASC_SENSE_KEY(ioasc
) > 0) {
4110 scsi_cmd
->result
|= (DID_ERROR
<< 16);
4111 scmd_printk(KERN_ERR
, scsi_cmd
,
4112 "Request Sense failed with IOASC: 0x%08X\n", ioasc
);
4114 memcpy(scsi_cmd
->sense_buffer
, ipr_cmd
->sense_buffer
,
4115 SCSI_SENSE_BUFFERSIZE
);
4119 if (!ipr_is_naca_model(res
))
4120 res
->needs_sync_complete
= 1;
4123 ipr_unmap_sglist(ioa_cfg
, ipr_cmd
);
4124 list_add_tail(&ipr_cmd
->queue
, &ioa_cfg
->free_q
);
4125 scsi_cmd
->scsi_done(scsi_cmd
);
4129 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP
4130 * @ipr_cmd: ipr command struct
4135 static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd
*ipr_cmd
)
4137 struct ipr_ioarcb
*ioarcb
;
4138 struct ipr_ioasa
*ioasa
;
4140 ioarcb
= &ipr_cmd
->ioarcb
;
4141 ioasa
= &ipr_cmd
->ioasa
;
4143 memset(&ioarcb
->cmd_pkt
, 0, sizeof(struct ipr_cmd_pkt
));
4144 ioarcb
->write_data_transfer_length
= 0;
4145 ioarcb
->read_data_transfer_length
= 0;
4146 ioarcb
->write_ioadl_len
= 0;
4147 ioarcb
->read_ioadl_len
= 0;
4149 ioasa
->residual_data_len
= 0;
4153 * ipr_erp_request_sense - Send request sense to a device
4154 * @ipr_cmd: ipr command struct
4156 * This function sends a request sense to a device as a result
4157 * of a check condition.
4162 static void ipr_erp_request_sense(struct ipr_cmnd
*ipr_cmd
)
4164 struct ipr_cmd_pkt
*cmd_pkt
= &ipr_cmd
->ioarcb
.cmd_pkt
;
4165 u32 ioasc
= be32_to_cpu(ipr_cmd
->ioasa
.ioasc
);
4167 if (IPR_IOASC_SENSE_KEY(ioasc
) > 0) {
4168 ipr_erp_done(ipr_cmd
);
4172 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd
);
4174 cmd_pkt
->request_type
= IPR_RQTYPE_SCSICDB
;
4175 cmd_pkt
->cdb
[0] = REQUEST_SENSE
;
4176 cmd_pkt
->cdb
[4] = SCSI_SENSE_BUFFERSIZE
;
4177 cmd_pkt
->flags_hi
|= IPR_FLAGS_HI_SYNC_OVERRIDE
;
4178 cmd_pkt
->flags_hi
|= IPR_FLAGS_HI_NO_ULEN_CHK
;
4179 cmd_pkt
->timeout
= cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT
/ HZ
);
4181 ipr_cmd
->ioadl
[0].flags_and_data_len
=
4182 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST
| SCSI_SENSE_BUFFERSIZE
);
4183 ipr_cmd
->ioadl
[0].address
=
4184 cpu_to_be32(ipr_cmd
->sense_buffer_dma
);
4186 ipr_cmd
->ioarcb
.read_ioadl_len
=
4187 cpu_to_be32(sizeof(struct ipr_ioadl_desc
));
4188 ipr_cmd
->ioarcb
.read_data_transfer_length
=
4189 cpu_to_be32(SCSI_SENSE_BUFFERSIZE
);
4191 ipr_do_req(ipr_cmd
, ipr_erp_done
, ipr_timeout
,
4192 IPR_REQUEST_SENSE_TIMEOUT
* 2);
4196 * ipr_erp_cancel_all - Send cancel all to a device
4197 * @ipr_cmd: ipr command struct
4199 * This function sends a cancel all to a device to clear the
4200 * queue. If we are running TCQ on the device, QERR is set to 1,
4201 * which means all outstanding ops have been dropped on the floor.
4202 * Cancel all will return them to us.
4207 static void ipr_erp_cancel_all(struct ipr_cmnd
*ipr_cmd
)
4209 struct scsi_cmnd
*scsi_cmd
= ipr_cmd
->scsi_cmd
;
4210 struct ipr_resource_entry
*res
= scsi_cmd
->device
->hostdata
;
4211 struct ipr_cmd_pkt
*cmd_pkt
;
4215 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd
);
4217 if (!scsi_get_tag_type(scsi_cmd
->device
)) {
4218 ipr_erp_request_sense(ipr_cmd
);
4222 cmd_pkt
= &ipr_cmd
->ioarcb
.cmd_pkt
;
4223 cmd_pkt
->request_type
= IPR_RQTYPE_IOACMD
;
4224 cmd_pkt
->cdb
[0] = IPR_CANCEL_ALL_REQUESTS
;
4226 ipr_do_req(ipr_cmd
, ipr_erp_request_sense
, ipr_timeout
,
4227 IPR_CANCEL_ALL_TIMEOUT
);
4231 * ipr_dump_ioasa - Dump contents of IOASA
4232 * @ioa_cfg: ioa config struct
4233 * @ipr_cmd: ipr command struct
4234 * @res: resource entry struct
4236 * This function is invoked by the interrupt handler when ops
4237 * fail. It will log the IOASA if appropriate. Only called
4243 static void ipr_dump_ioasa(struct ipr_ioa_cfg
*ioa_cfg
,
4244 struct ipr_cmnd
*ipr_cmd
, struct ipr_resource_entry
*res
)
4249 struct ipr_ioasa
*ioasa
= &ipr_cmd
->ioasa
;
4250 __be32
*ioasa_data
= (__be32
*)ioasa
;
4253 ioasc
= be32_to_cpu(ioasa
->ioasc
) & IPR_IOASC_IOASC_MASK
;
4258 if (ioa_cfg
->log_level
< IPR_DEFAULT_LOG_LEVEL
)
4261 error_index
= ipr_get_error(ioasc
);
4263 if (ioa_cfg
->log_level
< IPR_MAX_LOG_LEVEL
) {
4264 /* Don't log an error if the IOA already logged one */
4265 if (ioasa
->ilid
!= 0)
4268 if (ipr_error_table
[error_index
].log_ioasa
== 0)
4272 ipr_res_err(ioa_cfg
, res
, "%s\n", ipr_error_table
[error_index
].error
);
4274 if (sizeof(struct ipr_ioasa
) < be16_to_cpu(ioasa
->ret_stat_len
))
4275 data_len
= sizeof(struct ipr_ioasa
);
4277 data_len
= be16_to_cpu(ioasa
->ret_stat_len
);
4279 ipr_err("IOASA Dump:\n");
4281 for (i
= 0; i
< data_len
/ 4; i
+= 4) {
4282 ipr_err("%08X: %08X %08X %08X %08X\n", i
*4,
4283 be32_to_cpu(ioasa_data
[i
]),
4284 be32_to_cpu(ioasa_data
[i
+1]),
4285 be32_to_cpu(ioasa_data
[i
+2]),
4286 be32_to_cpu(ioasa_data
[i
+3]));
4291 * ipr_gen_sense - Generate SCSI sense data from an IOASA
4293 * @sense_buf: sense data buffer
4298 static void ipr_gen_sense(struct ipr_cmnd
*ipr_cmd
)
4301 u8
*sense_buf
= ipr_cmd
->scsi_cmd
->sense_buffer
;
4302 struct ipr_resource_entry
*res
= ipr_cmd
->scsi_cmd
->device
->hostdata
;
4303 struct ipr_ioasa
*ioasa
= &ipr_cmd
->ioasa
;
4304 u32 ioasc
= be32_to_cpu(ioasa
->ioasc
);
4306 memset(sense_buf
, 0, SCSI_SENSE_BUFFERSIZE
);
4308 if (ioasc
>= IPR_FIRST_DRIVER_IOASC
)
4311 ipr_cmd
->scsi_cmd
->result
= SAM_STAT_CHECK_CONDITION
;
4313 if (ipr_is_vset_device(res
) &&
4314 ioasc
== IPR_IOASC_MED_DO_NOT_REALLOC
&&
4315 ioasa
->u
.vset
.failing_lba_hi
!= 0) {
4316 sense_buf
[0] = 0x72;
4317 sense_buf
[1] = IPR_IOASC_SENSE_KEY(ioasc
);
4318 sense_buf
[2] = IPR_IOASC_SENSE_CODE(ioasc
);
4319 sense_buf
[3] = IPR_IOASC_SENSE_QUAL(ioasc
);
4323 sense_buf
[9] = 0x0A;
4324 sense_buf
[10] = 0x80;
4326 failing_lba
= be32_to_cpu(ioasa
->u
.vset
.failing_lba_hi
);
4328 sense_buf
[12] = (failing_lba
& 0xff000000) >> 24;
4329 sense_buf
[13] = (failing_lba
& 0x00ff0000) >> 16;
4330 sense_buf
[14] = (failing_lba
& 0x0000ff00) >> 8;
4331 sense_buf
[15] = failing_lba
& 0x000000ff;
4333 failing_lba
= be32_to_cpu(ioasa
->u
.vset
.failing_lba_lo
);
4335 sense_buf
[16] = (failing_lba
& 0xff000000) >> 24;
4336 sense_buf
[17] = (failing_lba
& 0x00ff0000) >> 16;
4337 sense_buf
[18] = (failing_lba
& 0x0000ff00) >> 8;
4338 sense_buf
[19] = failing_lba
& 0x000000ff;
4340 sense_buf
[0] = 0x70;
4341 sense_buf
[2] = IPR_IOASC_SENSE_KEY(ioasc
);
4342 sense_buf
[12] = IPR_IOASC_SENSE_CODE(ioasc
);
4343 sense_buf
[13] = IPR_IOASC_SENSE_QUAL(ioasc
);
4345 /* Illegal request */
4346 if ((IPR_IOASC_SENSE_KEY(ioasc
) == 0x05) &&
4347 (be32_to_cpu(ioasa
->ioasc_specific
) & IPR_FIELD_POINTER_VALID
)) {
4348 sense_buf
[7] = 10; /* additional length */
4350 /* IOARCB was in error */
4351 if (IPR_IOASC_SENSE_CODE(ioasc
) == 0x24)
4352 sense_buf
[15] = 0xC0;
4353 else /* Parameter data was invalid */
4354 sense_buf
[15] = 0x80;
4357 ((IPR_FIELD_POINTER_MASK
&
4358 be32_to_cpu(ioasa
->ioasc_specific
)) >> 8) & 0xff;
4360 (IPR_FIELD_POINTER_MASK
&
4361 be32_to_cpu(ioasa
->ioasc_specific
)) & 0xff;
4363 if (ioasc
== IPR_IOASC_MED_DO_NOT_REALLOC
) {
4364 if (ipr_is_vset_device(res
))
4365 failing_lba
= be32_to_cpu(ioasa
->u
.vset
.failing_lba_lo
);
4367 failing_lba
= be32_to_cpu(ioasa
->u
.dasd
.failing_lba
);
4369 sense_buf
[0] |= 0x80; /* Or in the Valid bit */
4370 sense_buf
[3] = (failing_lba
& 0xff000000) >> 24;
4371 sense_buf
[4] = (failing_lba
& 0x00ff0000) >> 16;
4372 sense_buf
[5] = (failing_lba
& 0x0000ff00) >> 8;
4373 sense_buf
[6] = failing_lba
& 0x000000ff;
4376 sense_buf
[7] = 6; /* additional length */
4382 * ipr_get_autosense - Copy autosense data to sense buffer
4383 * @ipr_cmd: ipr command struct
4385 * This function copies the autosense buffer to the buffer
4386 * in the scsi_cmd, if there is autosense available.
4389 * 1 if autosense was available / 0 if not
4391 static int ipr_get_autosense(struct ipr_cmnd
*ipr_cmd
)
4393 struct ipr_ioasa
*ioasa
= &ipr_cmd
->ioasa
;
4395 if ((be32_to_cpu(ioasa
->ioasc_specific
) & IPR_AUTOSENSE_VALID
) == 0)
4398 memcpy(ipr_cmd
->scsi_cmd
->sense_buffer
, ioasa
->auto_sense
.data
,
4399 min_t(u16
, be16_to_cpu(ioasa
->auto_sense
.auto_sense_len
),
4400 SCSI_SENSE_BUFFERSIZE
));
4405 * ipr_erp_start - Process an error response for a SCSI op
4406 * @ioa_cfg: ioa config struct
4407 * @ipr_cmd: ipr command struct
4409 * This function determines whether or not to initiate ERP
4410 * on the affected device.
4415 static void ipr_erp_start(struct ipr_ioa_cfg
*ioa_cfg
,
4416 struct ipr_cmnd
*ipr_cmd
)
4418 struct scsi_cmnd
*scsi_cmd
= ipr_cmd
->scsi_cmd
;
4419 struct ipr_resource_entry
*res
= scsi_cmd
->device
->hostdata
;
4420 u32 ioasc
= be32_to_cpu(ipr_cmd
->ioasa
.ioasc
);
4423 ipr_scsi_eh_done(ipr_cmd
);
4427 if (ipr_is_gscsi(res
))
4428 ipr_dump_ioasa(ioa_cfg
, ipr_cmd
, res
);
4430 ipr_gen_sense(ipr_cmd
);
4432 switch (ioasc
& IPR_IOASC_IOASC_MASK
) {
4433 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST
:
4434 if (ipr_is_naca_model(res
))
4435 scsi_cmd
->result
|= (DID_ABORT
<< 16);
4437 scsi_cmd
->result
|= (DID_IMM_RETRY
<< 16);
4439 case IPR_IOASC_IR_RESOURCE_HANDLE
:
4440 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA
:
4441 scsi_cmd
->result
|= (DID_NO_CONNECT
<< 16);
4443 case IPR_IOASC_HW_SEL_TIMEOUT
:
4444 scsi_cmd
->result
|= (DID_NO_CONNECT
<< 16);
4445 if (!ipr_is_naca_model(res
))
4446 res
->needs_sync_complete
= 1;
4448 case IPR_IOASC_SYNC_REQUIRED
:
4450 res
->needs_sync_complete
= 1;
4451 scsi_cmd
->result
|= (DID_IMM_RETRY
<< 16);
4453 case IPR_IOASC_MED_DO_NOT_REALLOC
: /* prevent retries */
4454 case IPR_IOASA_IR_DUAL_IOA_DISABLED
:
4455 scsi_cmd
->result
|= (DID_PASSTHROUGH
<< 16);
4457 case IPR_IOASC_BUS_WAS_RESET
:
4458 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER
:
4460 * Report the bus reset and ask for a retry. The device
4461 * will give CC/UA the next command.
4463 if (!res
->resetting_device
)
4464 scsi_report_bus_reset(ioa_cfg
->host
, scsi_cmd
->device
->channel
);
4465 scsi_cmd
->result
|= (DID_ERROR
<< 16);
4466 if (!ipr_is_naca_model(res
))
4467 res
->needs_sync_complete
= 1;
4469 case IPR_IOASC_HW_DEV_BUS_STATUS
:
4470 scsi_cmd
->result
|= IPR_IOASC_SENSE_STATUS(ioasc
);
4471 if (IPR_IOASC_SENSE_STATUS(ioasc
) == SAM_STAT_CHECK_CONDITION
) {
4472 if (!ipr_get_autosense(ipr_cmd
)) {
4473 if (!ipr_is_naca_model(res
)) {
4474 ipr_erp_cancel_all(ipr_cmd
);
4479 if (!ipr_is_naca_model(res
))
4480 res
->needs_sync_complete
= 1;
4482 case IPR_IOASC_NR_INIT_CMD_REQUIRED
:
4485 if (IPR_IOASC_SENSE_KEY(ioasc
) > RECOVERED_ERROR
)
4486 scsi_cmd
->result
|= (DID_ERROR
<< 16);
4487 if (!ipr_is_vset_device(res
) && !ipr_is_naca_model(res
))
4488 res
->needs_sync_complete
= 1;
4492 ipr_unmap_sglist(ioa_cfg
, ipr_cmd
);
4493 list_add_tail(&ipr_cmd
->queue
, &ioa_cfg
->free_q
);
4494 scsi_cmd
->scsi_done(scsi_cmd
);
4498 * ipr_scsi_done - mid-layer done function
4499 * @ipr_cmd: ipr command struct
4501 * This function is invoked by the interrupt handler for
4502 * ops generated by the SCSI mid-layer
4507 static void ipr_scsi_done(struct ipr_cmnd
*ipr_cmd
)
4509 struct ipr_ioa_cfg
*ioa_cfg
= ipr_cmd
->ioa_cfg
;
4510 struct scsi_cmnd
*scsi_cmd
= ipr_cmd
->scsi_cmd
;
4511 u32 ioasc
= be32_to_cpu(ipr_cmd
->ioasa
.ioasc
);
4513 scsi_cmd
->resid
= be32_to_cpu(ipr_cmd
->ioasa
.residual_data_len
);
4515 if (likely(IPR_IOASC_SENSE_KEY(ioasc
) == 0)) {
4516 ipr_unmap_sglist(ioa_cfg
, ipr_cmd
);
4517 list_add_tail(&ipr_cmd
->queue
, &ioa_cfg
->free_q
);
4518 scsi_cmd
->scsi_done(scsi_cmd
);
4520 ipr_erp_start(ioa_cfg
, ipr_cmd
);
4524 * ipr_queuecommand - Queue a mid-layer request
4525 * @scsi_cmd: scsi command struct
4526 * @done: done function
4528 * This function queues a request generated by the mid-layer.
4532 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy
4533 * SCSI_MLQUEUE_HOST_BUSY if host is busy
4535 static int ipr_queuecommand(struct scsi_cmnd
*scsi_cmd
,
4536 void (*done
) (struct scsi_cmnd
*))
4538 struct ipr_ioa_cfg
*ioa_cfg
;
4539 struct ipr_resource_entry
*res
;
4540 struct ipr_ioarcb
*ioarcb
;
4541 struct ipr_cmnd
*ipr_cmd
;
4544 scsi_cmd
->scsi_done
= done
;
4545 ioa_cfg
= (struct ipr_ioa_cfg
*)scsi_cmd
->device
->host
->hostdata
;
4546 res
= scsi_cmd
->device
->hostdata
;
4547 scsi_cmd
->result
= (DID_OK
<< 16);
4550 * We are currently blocking all devices due to a host reset
4551 * We have told the host to stop giving us new requests, but
4552 * ERP ops don't count. FIXME
4554 if (unlikely(!ioa_cfg
->allow_cmds
&& !ioa_cfg
->ioa_is_dead
))
4555 return SCSI_MLQUEUE_HOST_BUSY
;
4558 * FIXME - Create scsi_set_host_offline interface
4559 * and the ioa_is_dead check can be removed
4561 if (unlikely(ioa_cfg
->ioa_is_dead
|| !res
)) {
4562 memset(scsi_cmd
->sense_buffer
, 0, SCSI_SENSE_BUFFERSIZE
);
4563 scsi_cmd
->result
= (DID_NO_CONNECT
<< 16);
4564 scsi_cmd
->scsi_done(scsi_cmd
);
4568 if (ipr_is_gata(res
) && res
->sata_port
)
4569 return ata_sas_queuecmd(scsi_cmd
, done
, res
->sata_port
->ap
);
4571 ipr_cmd
= ipr_get_free_ipr_cmnd(ioa_cfg
);
4572 ioarcb
= &ipr_cmd
->ioarcb
;
4573 list_add_tail(&ipr_cmd
->queue
, &ioa_cfg
->pending_q
);
4575 memcpy(ioarcb
->cmd_pkt
.cdb
, scsi_cmd
->cmnd
, scsi_cmd
->cmd_len
);
4576 ipr_cmd
->scsi_cmd
= scsi_cmd
;
4577 ioarcb
->res_handle
= res
->cfgte
.res_handle
;
4578 ipr_cmd
->done
= ipr_scsi_done
;
4579 ipr_trc_hook(ipr_cmd
, IPR_TRACE_START
, IPR_GET_PHYS_LOC(res
->cfgte
.res_addr
));
4581 if (ipr_is_gscsi(res
) || ipr_is_vset_device(res
)) {
4582 if (scsi_cmd
->underflow
== 0)
4583 ioarcb
->cmd_pkt
.flags_hi
|= IPR_FLAGS_HI_NO_ULEN_CHK
;
4585 if (res
->needs_sync_complete
) {
4586 ioarcb
->cmd_pkt
.flags_hi
|= IPR_FLAGS_HI_SYNC_COMPLETE
;
4587 res
->needs_sync_complete
= 0;
4590 ioarcb
->cmd_pkt
.flags_hi
|= IPR_FLAGS_HI_NO_LINK_DESC
;
4591 ioarcb
->cmd_pkt
.flags_lo
|= IPR_FLAGS_LO_DELAY_AFTER_RST
;
4592 ioarcb
->cmd_pkt
.flags_lo
|= IPR_FLAGS_LO_ALIGNED_BFR
;
4593 ioarcb
->cmd_pkt
.flags_lo
|= ipr_get_task_attributes(scsi_cmd
);
4596 if (scsi_cmd
->cmnd
[0] >= 0xC0 &&
4597 (!ipr_is_gscsi(res
) || scsi_cmd
->cmnd
[0] == IPR_QUERY_RSRC_STATE
))
4598 ioarcb
->cmd_pkt
.request_type
= IPR_RQTYPE_IOACMD
;
4600 if (likely(rc
== 0))
4601 rc
= ipr_build_ioadl(ioa_cfg
, ipr_cmd
);
4603 if (likely(rc
== 0)) {
4605 writel(be32_to_cpu(ipr_cmd
->ioarcb
.ioarcb_host_pci_addr
),
4606 ioa_cfg
->regs
.ioarrin_reg
);
4608 list_move_tail(&ipr_cmd
->queue
, &ioa_cfg
->free_q
);
4609 return SCSI_MLQUEUE_HOST_BUSY
;
4616 * ipr_ioctl - IOCTL handler
4617 * @sdev: scsi device struct
4622 * 0 on success / other on failure
4624 int ipr_ioctl(struct scsi_device
*sdev
, int cmd
, void __user
*arg
)
4626 struct ipr_resource_entry
*res
;
4628 res
= (struct ipr_resource_entry
*)sdev
->hostdata
;
4629 if (res
&& ipr_is_gata(res
))
4630 return ata_scsi_ioctl(sdev
, cmd
, arg
);
4636 * ipr_info - Get information about the card/driver
4637 * @scsi_host: scsi host struct
4640 * pointer to buffer with description string
4642 static const char * ipr_ioa_info(struct Scsi_Host
*host
)
4644 static char buffer
[512];
4645 struct ipr_ioa_cfg
*ioa_cfg
;
4646 unsigned long lock_flags
= 0;
4648 ioa_cfg
= (struct ipr_ioa_cfg
*) host
->hostdata
;
4650 spin_lock_irqsave(host
->host_lock
, lock_flags
);
4651 sprintf(buffer
, "IBM %X Storage Adapter", ioa_cfg
->type
);
4652 spin_unlock_irqrestore(host
->host_lock
, lock_flags
);
4658 * ipr_scsi_timed_out - Handle scsi command timeout
4659 * @scsi_cmd: scsi command struct
4664 enum scsi_eh_timer_return
ipr_scsi_timed_out(struct scsi_cmnd
*scsi_cmd
)
4666 struct ipr_ioa_cfg
*ioa_cfg
;
4667 struct ipr_cmnd
*ipr_cmd
;
4668 unsigned long flags
;
4671 spin_lock_irqsave(scsi_cmd
->device
->host
->host_lock
, flags
);
4672 ioa_cfg
= (struct ipr_ioa_cfg
*)scsi_cmd
->device
->host
->hostdata
;
4674 list_for_each_entry(ipr_cmd
, &ioa_cfg
->pending_q
, queue
) {
4675 if (ipr_cmd
->qc
&& ipr_cmd
->qc
->scsicmd
== scsi_cmd
) {
4676 ipr_cmd
->qc
->err_mask
|= AC_ERR_TIMEOUT
;
4677 ipr_cmd
->qc
->flags
|= ATA_QCFLAG_FAILED
;
4682 spin_unlock_irqrestore(scsi_cmd
->device
->host
->host_lock
, flags
);
4684 return EH_NOT_HANDLED
;
4687 static struct scsi_transport_template ipr_transport_template
= {
4688 .eh_timed_out
= ipr_scsi_timed_out
4691 static struct scsi_host_template driver_template
= {
4692 .module
= THIS_MODULE
,
4694 .info
= ipr_ioa_info
,
4696 .queuecommand
= ipr_queuecommand
,
4697 .eh_abort_handler
= ipr_eh_abort
,
4698 .eh_device_reset_handler
= ipr_eh_dev_reset
,
4699 .eh_host_reset_handler
= ipr_eh_host_reset
,
4700 .slave_alloc
= ipr_slave_alloc
,
4701 .slave_configure
= ipr_slave_configure
,
4702 .slave_destroy
= ipr_slave_destroy
,
4703 .target_alloc
= ipr_target_alloc
,
4704 .target_destroy
= ipr_target_destroy
,
4705 .change_queue_depth
= ipr_change_queue_depth
,
4706 .change_queue_type
= ipr_change_queue_type
,
4707 .bios_param
= ipr_biosparam
,
4708 .can_queue
= IPR_MAX_COMMANDS
,
4710 .sg_tablesize
= IPR_MAX_SGLIST
,
4711 .max_sectors
= IPR_IOA_MAX_SECTORS
,
4712 .cmd_per_lun
= IPR_MAX_CMD_PER_LUN
,
4713 .use_clustering
= ENABLE_CLUSTERING
,
4714 .shost_attrs
= ipr_ioa_attrs
,
4715 .sdev_attrs
= ipr_dev_attrs
,
4716 .proc_name
= IPR_NAME
4720 * ipr_ata_phy_reset - libata phy_reset handler
4721 * @ap: ata port to reset
4724 static void ipr_ata_phy_reset(struct ata_port
*ap
)
4726 unsigned long flags
;
4727 struct ipr_sata_port
*sata_port
= ap
->private_data
;
4728 struct ipr_resource_entry
*res
= sata_port
->res
;
4729 struct ipr_ioa_cfg
*ioa_cfg
= sata_port
->ioa_cfg
;
4733 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, flags
);
4734 while(ioa_cfg
->in_reset_reload
) {
4735 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, flags
);
4736 wait_event(ioa_cfg
->reset_wait_q
, !ioa_cfg
->in_reset_reload
);
4737 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, flags
);
4740 if (!ioa_cfg
->allow_cmds
)
4743 rc
= ipr_device_reset(ioa_cfg
, res
);
4746 ap
->ops
->port_disable(ap
);
4750 switch(res
->cfgte
.proto
) {
4751 case IPR_PROTO_SATA
:
4752 case IPR_PROTO_SAS_STP
:
4753 ap
->device
[0].class = ATA_DEV_ATA
;
4755 case IPR_PROTO_SATA_ATAPI
:
4756 case IPR_PROTO_SAS_STP_ATAPI
:
4757 ap
->device
[0].class = ATA_DEV_ATAPI
;
4760 ap
->device
[0].class = ATA_DEV_UNKNOWN
;
4761 ap
->ops
->port_disable(ap
);
4766 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, flags
);
4771 * ipr_ata_post_internal - Cleanup after an internal command
4772 * @qc: ATA queued command
4777 static void ipr_ata_post_internal(struct ata_queued_cmd
*qc
)
4779 struct ipr_sata_port
*sata_port
= qc
->ap
->private_data
;
4780 struct ipr_ioa_cfg
*ioa_cfg
= sata_port
->ioa_cfg
;
4781 struct ipr_cmnd
*ipr_cmd
;
4782 unsigned long flags
;
4784 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, flags
);
4785 while(ioa_cfg
->in_reset_reload
) {
4786 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, flags
);
4787 wait_event(ioa_cfg
->reset_wait_q
, !ioa_cfg
->in_reset_reload
);
4788 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, flags
);
4791 list_for_each_entry(ipr_cmd
, &ioa_cfg
->pending_q
, queue
) {
4792 if (ipr_cmd
->qc
== qc
) {
4793 ipr_device_reset(ioa_cfg
, sata_port
->res
);
4797 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, flags
);
4801 * ipr_tf_read - Read the current ATA taskfile for the ATA port
4803 * @tf: destination ATA taskfile
4808 static void ipr_tf_read(struct ata_port
*ap
, struct ata_taskfile
*tf
)
4810 struct ipr_sata_port
*sata_port
= ap
->private_data
;
4811 struct ipr_ioasa_gata
*g
= &sata_port
->ioasa
;
4813 tf
->feature
= g
->error
;
4814 tf
->nsect
= g
->nsect
;
4818 tf
->device
= g
->device
;
4819 tf
->command
= g
->status
;
4820 tf
->hob_nsect
= g
->hob_nsect
;
4821 tf
->hob_lbal
= g
->hob_lbal
;
4822 tf
->hob_lbam
= g
->hob_lbam
;
4823 tf
->hob_lbah
= g
->hob_lbah
;
4824 tf
->ctl
= g
->alt_status
;
4828 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure
4829 * @regs: destination
4830 * @tf: source ATA taskfile
4835 static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs
*regs
,
4836 struct ata_taskfile
*tf
)
4838 regs
->feature
= tf
->feature
;
4839 regs
->nsect
= tf
->nsect
;
4840 regs
->lbal
= tf
->lbal
;
4841 regs
->lbam
= tf
->lbam
;
4842 regs
->lbah
= tf
->lbah
;
4843 regs
->device
= tf
->device
;
4844 regs
->command
= tf
->command
;
4845 regs
->hob_feature
= tf
->hob_feature
;
4846 regs
->hob_nsect
= tf
->hob_nsect
;
4847 regs
->hob_lbal
= tf
->hob_lbal
;
4848 regs
->hob_lbam
= tf
->hob_lbam
;
4849 regs
->hob_lbah
= tf
->hob_lbah
;
4850 regs
->ctl
= tf
->ctl
;
4854 * ipr_sata_done - done function for SATA commands
4855 * @ipr_cmd: ipr command struct
4857 * This function is invoked by the interrupt handler for
4858 * ops generated by the SCSI mid-layer to SATA devices
4863 static void ipr_sata_done(struct ipr_cmnd
*ipr_cmd
)
4865 struct ipr_ioa_cfg
*ioa_cfg
= ipr_cmd
->ioa_cfg
;
4866 struct ata_queued_cmd
*qc
= ipr_cmd
->qc
;
4867 struct ipr_sata_port
*sata_port
= qc
->ap
->private_data
;
4868 struct ipr_resource_entry
*res
= sata_port
->res
;
4869 u32 ioasc
= be32_to_cpu(ipr_cmd
->ioasa
.ioasc
);
4871 memcpy(&sata_port
->ioasa
, &ipr_cmd
->ioasa
.u
.gata
,
4872 sizeof(struct ipr_ioasa_gata
));
4873 ipr_dump_ioasa(ioa_cfg
, ipr_cmd
, res
);
4875 if (be32_to_cpu(ipr_cmd
->ioasa
.ioasc_specific
) & IPR_ATA_DEVICE_WAS_RESET
)
4876 scsi_report_device_reset(ioa_cfg
->host
, res
->cfgte
.res_addr
.bus
,
4877 res
->cfgte
.res_addr
.target
);
4879 if (IPR_IOASC_SENSE_KEY(ioasc
) > RECOVERED_ERROR
)
4880 qc
->err_mask
|= __ac_err_mask(ipr_cmd
->ioasa
.u
.gata
.status
);
4882 qc
->err_mask
|= ac_err_mask(ipr_cmd
->ioasa
.u
.gata
.status
);
4883 list_add_tail(&ipr_cmd
->queue
, &ioa_cfg
->free_q
);
4884 ata_qc_complete(qc
);
4888 * ipr_build_ata_ioadl - Build an ATA scatter/gather list
4889 * @ipr_cmd: ipr command struct
4890 * @qc: ATA queued command
4893 static void ipr_build_ata_ioadl(struct ipr_cmnd
*ipr_cmd
,
4894 struct ata_queued_cmd
*qc
)
4896 u32 ioadl_flags
= 0;
4897 struct ipr_ioarcb
*ioarcb
= &ipr_cmd
->ioarcb
;
4898 struct ipr_ioadl_desc
*ioadl
= ipr_cmd
->ioadl
;
4899 int len
= qc
->nbytes
+ qc
->pad_len
;
4900 struct scatterlist
*sg
;
4905 if (qc
->dma_dir
== DMA_TO_DEVICE
) {
4906 ioadl_flags
= IPR_IOADL_FLAGS_WRITE
;
4907 ioarcb
->cmd_pkt
.flags_hi
|= IPR_FLAGS_HI_WRITE_NOT_READ
;
4908 ioarcb
->write_data_transfer_length
= cpu_to_be32(len
);
4909 ioarcb
->write_ioadl_len
=
4910 cpu_to_be32(sizeof(struct ipr_ioadl_desc
) * ipr_cmd
->dma_use_sg
);
4911 } else if (qc
->dma_dir
== DMA_FROM_DEVICE
) {
4912 ioadl_flags
= IPR_IOADL_FLAGS_READ
;
4913 ioarcb
->read_data_transfer_length
= cpu_to_be32(len
);
4914 ioarcb
->read_ioadl_len
=
4915 cpu_to_be32(sizeof(struct ipr_ioadl_desc
) * ipr_cmd
->dma_use_sg
);
4918 ata_for_each_sg(sg
, qc
) {
4919 ioadl
->flags_and_data_len
= cpu_to_be32(ioadl_flags
| sg_dma_len(sg
));
4920 ioadl
->address
= cpu_to_be32(sg_dma_address(sg
));
4921 if (ata_sg_is_last(sg
, qc
))
4922 ioadl
->flags_and_data_len
|= cpu_to_be32(IPR_IOADL_FLAGS_LAST
);
4929 * ipr_qc_issue - Issue a SATA qc to a device
4930 * @qc: queued command
4935 static unsigned int ipr_qc_issue(struct ata_queued_cmd
*qc
)
4937 struct ata_port
*ap
= qc
->ap
;
4938 struct ipr_sata_port
*sata_port
= ap
->private_data
;
4939 struct ipr_resource_entry
*res
= sata_port
->res
;
4940 struct ipr_ioa_cfg
*ioa_cfg
= sata_port
->ioa_cfg
;
4941 struct ipr_cmnd
*ipr_cmd
;
4942 struct ipr_ioarcb
*ioarcb
;
4943 struct ipr_ioarcb_ata_regs
*regs
;
4945 if (unlikely(!ioa_cfg
->allow_cmds
|| ioa_cfg
->ioa_is_dead
))
4948 ipr_cmd
= ipr_get_free_ipr_cmnd(ioa_cfg
);
4949 ioarcb
= &ipr_cmd
->ioarcb
;
4950 regs
= &ioarcb
->add_data
.u
.regs
;
4952 memset(&ioarcb
->add_data
, 0, sizeof(ioarcb
->add_data
));
4953 ioarcb
->add_cmd_parms_len
= cpu_to_be32(sizeof(ioarcb
->add_data
.u
.regs
));
4955 list_add_tail(&ipr_cmd
->queue
, &ioa_cfg
->pending_q
);
4957 ipr_cmd
->done
= ipr_sata_done
;
4958 ipr_cmd
->ioarcb
.res_handle
= res
->cfgte
.res_handle
;
4959 ioarcb
->cmd_pkt
.request_type
= IPR_RQTYPE_ATA_PASSTHRU
;
4960 ioarcb
->cmd_pkt
.flags_hi
|= IPR_FLAGS_HI_NO_LINK_DESC
;
4961 ioarcb
->cmd_pkt
.flags_hi
|= IPR_FLAGS_HI_NO_ULEN_CHK
;
4962 ipr_cmd
->dma_use_sg
= qc
->pad_len
? qc
->n_elem
+ 1 : qc
->n_elem
;
4964 ipr_build_ata_ioadl(ipr_cmd
, qc
);
4965 regs
->flags
|= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION
;
4966 ipr_copy_sata_tf(regs
, &qc
->tf
);
4967 memcpy(ioarcb
->cmd_pkt
.cdb
, qc
->cdb
, IPR_MAX_CDB_LEN
);
4968 ipr_trc_hook(ipr_cmd
, IPR_TRACE_START
, IPR_GET_PHYS_LOC(res
->cfgte
.res_addr
));
4970 switch (qc
->tf
.protocol
) {
4971 case ATA_PROT_NODATA
:
4976 regs
->flags
|= IPR_ATA_FLAG_XFER_TYPE_DMA
;
4979 case ATA_PROT_ATAPI
:
4980 case ATA_PROT_ATAPI_NODATA
:
4981 regs
->flags
|= IPR_ATA_FLAG_PACKET_CMD
;
4984 case ATA_PROT_ATAPI_DMA
:
4985 regs
->flags
|= IPR_ATA_FLAG_PACKET_CMD
;
4986 regs
->flags
|= IPR_ATA_FLAG_XFER_TYPE_DMA
;
4995 writel(be32_to_cpu(ioarcb
->ioarcb_host_pci_addr
),
4996 ioa_cfg
->regs
.ioarrin_reg
);
5001 * ipr_ata_check_status - Return last ATA status
5007 static u8
ipr_ata_check_status(struct ata_port
*ap
)
5009 struct ipr_sata_port
*sata_port
= ap
->private_data
;
5010 return sata_port
->ioasa
.status
;
5014 * ipr_ata_check_altstatus - Return last ATA altstatus
5020 static u8
ipr_ata_check_altstatus(struct ata_port
*ap
)
5022 struct ipr_sata_port
*sata_port
= ap
->private_data
;
5023 return sata_port
->ioasa
.alt_status
;
5026 static struct ata_port_operations ipr_sata_ops
= {
5027 .port_disable
= ata_port_disable
,
5028 .check_status
= ipr_ata_check_status
,
5029 .check_altstatus
= ipr_ata_check_altstatus
,
5030 .dev_select
= ata_noop_dev_select
,
5031 .phy_reset
= ipr_ata_phy_reset
,
5032 .post_internal_cmd
= ipr_ata_post_internal
,
5033 .tf_read
= ipr_tf_read
,
5034 .qc_prep
= ata_noop_qc_prep
,
5035 .qc_issue
= ipr_qc_issue
,
5036 .port_start
= ata_sas_port_start
,
5037 .port_stop
= ata_sas_port_stop
5040 static struct ata_port_info sata_port_info
= {
5041 .flags
= ATA_FLAG_SATA
| ATA_FLAG_NO_LEGACY
| ATA_FLAG_SATA_RESET
|
5042 ATA_FLAG_MMIO
| ATA_FLAG_PIO_DMA
,
5043 .pio_mask
= 0x10, /* pio4 */
5045 .udma_mask
= 0x7f, /* udma0-6 */
5046 .port_ops
= &ipr_sata_ops
5049 #ifdef CONFIG_PPC_PSERIES
5050 static const u16 ipr_blocked_processors
[] = {
5062 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware
5063 * @ioa_cfg: ioa cfg struct
5065 * Adapters that use Gemstone revision < 3.1 do not work reliably on
5066 * certain pSeries hardware. This function determines if the given
5067 * adapter is in one of these confgurations or not.
5070 * 1 if adapter is not supported / 0 if adapter is supported
5072 static int ipr_invalid_adapter(struct ipr_ioa_cfg
*ioa_cfg
)
5077 if (ioa_cfg
->type
== 0x5702) {
5078 if (pci_read_config_byte(ioa_cfg
->pdev
, PCI_REVISION_ID
,
5079 &rev_id
) == PCIBIOS_SUCCESSFUL
) {
5081 for (i
= 0; i
< ARRAY_SIZE(ipr_blocked_processors
); i
++){
5082 if (__is_processor(ipr_blocked_processors
[i
]))
5091 #define ipr_invalid_adapter(ioa_cfg) 0
5095 * ipr_ioa_bringdown_done - IOA bring down completion.
5096 * @ipr_cmd: ipr command struct
5098 * This function processes the completion of an adapter bring down.
5099 * It wakes any reset sleepers.
5104 static int ipr_ioa_bringdown_done(struct ipr_cmnd
*ipr_cmd
)
5106 struct ipr_ioa_cfg
*ioa_cfg
= ipr_cmd
->ioa_cfg
;
5109 ioa_cfg
->in_reset_reload
= 0;
5110 ioa_cfg
->reset_retries
= 0;
5111 list_add_tail(&ipr_cmd
->queue
, &ioa_cfg
->free_q
);
5112 wake_up_all(&ioa_cfg
->reset_wait_q
);
5114 spin_unlock_irq(ioa_cfg
->host
->host_lock
);
5115 scsi_unblock_requests(ioa_cfg
->host
);
5116 spin_lock_irq(ioa_cfg
->host
->host_lock
);
5119 return IPR_RC_JOB_RETURN
;
5123 * ipr_ioa_reset_done - IOA reset completion.
5124 * @ipr_cmd: ipr command struct
5126 * This function processes the completion of an adapter reset.
5127 * It schedules any necessary mid-layer add/removes and
5128 * wakes any reset sleepers.
5133 static int ipr_ioa_reset_done(struct ipr_cmnd
*ipr_cmd
)
5135 struct ipr_ioa_cfg
*ioa_cfg
= ipr_cmd
->ioa_cfg
;
5136 struct ipr_resource_entry
*res
;
5137 struct ipr_hostrcb
*hostrcb
, *temp
;
5141 ioa_cfg
->in_reset_reload
= 0;
5142 ioa_cfg
->allow_cmds
= 1;
5143 ioa_cfg
->reset_cmd
= NULL
;
5144 ioa_cfg
->doorbell
|= IPR_RUNTIME_RESET
;
5146 list_for_each_entry(res
, &ioa_cfg
->used_res_q
, queue
) {
5147 if (ioa_cfg
->allow_ml_add_del
&& (res
->add_to_ml
|| res
->del_from_ml
)) {
5152 schedule_work(&ioa_cfg
->work_q
);
5154 list_for_each_entry_safe(hostrcb
, temp
, &ioa_cfg
->hostrcb_free_q
, queue
) {
5155 list_del(&hostrcb
->queue
);
5156 if (i
++ < IPR_NUM_LOG_HCAMS
)
5157 ipr_send_hcam(ioa_cfg
, IPR_HCAM_CDB_OP_CODE_LOG_DATA
, hostrcb
);
5159 ipr_send_hcam(ioa_cfg
, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE
, hostrcb
);
5162 dev_info(&ioa_cfg
->pdev
->dev
, "IOA initialized.\n");
5164 ioa_cfg
->reset_retries
= 0;
5165 list_add_tail(&ipr_cmd
->queue
, &ioa_cfg
->free_q
);
5166 wake_up_all(&ioa_cfg
->reset_wait_q
);
5168 spin_unlock_irq(ioa_cfg
->host
->host_lock
);
5169 scsi_unblock_requests(ioa_cfg
->host
);
5170 spin_lock_irq(ioa_cfg
->host
->host_lock
);
5172 if (!ioa_cfg
->allow_cmds
)
5173 scsi_block_requests(ioa_cfg
->host
);
5176 return IPR_RC_JOB_RETURN
;
5180 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer
5181 * @supported_dev: supported device struct
5182 * @vpids: vendor product id struct
5187 static void ipr_set_sup_dev_dflt(struct ipr_supported_device
*supported_dev
,
5188 struct ipr_std_inq_vpids
*vpids
)
5190 memset(supported_dev
, 0, sizeof(struct ipr_supported_device
));
5191 memcpy(&supported_dev
->vpids
, vpids
, sizeof(struct ipr_std_inq_vpids
));
5192 supported_dev
->num_records
= 1;
5193 supported_dev
->data_length
=
5194 cpu_to_be16(sizeof(struct ipr_supported_device
));
5195 supported_dev
->reserved
= 0;
5199 * ipr_set_supported_devs - Send Set Supported Devices for a device
5200 * @ipr_cmd: ipr command struct
5202 * This function send a Set Supported Devices to the adapter
5205 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
5207 static int ipr_set_supported_devs(struct ipr_cmnd
*ipr_cmd
)
5209 struct ipr_ioa_cfg
*ioa_cfg
= ipr_cmd
->ioa_cfg
;
5210 struct ipr_supported_device
*supp_dev
= &ioa_cfg
->vpd_cbs
->supp_dev
;
5211 struct ipr_ioadl_desc
*ioadl
= ipr_cmd
->ioadl
;
5212 struct ipr_ioarcb
*ioarcb
= &ipr_cmd
->ioarcb
;
5213 struct ipr_resource_entry
*res
= ipr_cmd
->u
.res
;
5215 ipr_cmd
->job_step
= ipr_ioa_reset_done
;
5217 list_for_each_entry_continue(res
, &ioa_cfg
->used_res_q
, queue
) {
5218 if (!ipr_is_scsi_disk(res
))
5221 ipr_cmd
->u
.res
= res
;
5222 ipr_set_sup_dev_dflt(supp_dev
, &res
->cfgte
.std_inq_data
.vpids
);
5224 ioarcb
->res_handle
= cpu_to_be32(IPR_IOA_RES_HANDLE
);
5225 ioarcb
->cmd_pkt
.flags_hi
|= IPR_FLAGS_HI_WRITE_NOT_READ
;
5226 ioarcb
->cmd_pkt
.request_type
= IPR_RQTYPE_IOACMD
;
5228 ioarcb
->cmd_pkt
.cdb
[0] = IPR_SET_SUPPORTED_DEVICES
;
5229 ioarcb
->cmd_pkt
.cdb
[7] = (sizeof(struct ipr_supported_device
) >> 8) & 0xff;
5230 ioarcb
->cmd_pkt
.cdb
[8] = sizeof(struct ipr_supported_device
) & 0xff;
5232 ioadl
->flags_and_data_len
= cpu_to_be32(IPR_IOADL_FLAGS_WRITE_LAST
|
5233 sizeof(struct ipr_supported_device
));
5234 ioadl
->address
= cpu_to_be32(ioa_cfg
->vpd_cbs_dma
+
5235 offsetof(struct ipr_misc_cbs
, supp_dev
));
5236 ioarcb
->write_ioadl_len
= cpu_to_be32(sizeof(struct ipr_ioadl_desc
));
5237 ioarcb
->write_data_transfer_length
=
5238 cpu_to_be32(sizeof(struct ipr_supported_device
));
5240 ipr_do_req(ipr_cmd
, ipr_reset_ioa_job
, ipr_timeout
,
5241 IPR_SET_SUP_DEVICE_TIMEOUT
);
5243 ipr_cmd
->job_step
= ipr_set_supported_devs
;
5244 return IPR_RC_JOB_RETURN
;
5247 return IPR_RC_JOB_CONTINUE
;
5251 * ipr_setup_write_cache - Disable write cache if needed
5252 * @ipr_cmd: ipr command struct
5254 * This function sets up adapters write cache to desired setting
5257 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
5259 static int ipr_setup_write_cache(struct ipr_cmnd
*ipr_cmd
)
5261 struct ipr_ioa_cfg
*ioa_cfg
= ipr_cmd
->ioa_cfg
;
5263 ipr_cmd
->job_step
= ipr_set_supported_devs
;
5264 ipr_cmd
->u
.res
= list_entry(ioa_cfg
->used_res_q
.next
,
5265 struct ipr_resource_entry
, queue
);
5267 if (ioa_cfg
->cache_state
!= CACHE_DISABLED
)
5268 return IPR_RC_JOB_CONTINUE
;
5270 ipr_cmd
->ioarcb
.res_handle
= cpu_to_be32(IPR_IOA_RES_HANDLE
);
5271 ipr_cmd
->ioarcb
.cmd_pkt
.request_type
= IPR_RQTYPE_IOACMD
;
5272 ipr_cmd
->ioarcb
.cmd_pkt
.cdb
[0] = IPR_IOA_SHUTDOWN
;
5273 ipr_cmd
->ioarcb
.cmd_pkt
.cdb
[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL
;
5275 ipr_do_req(ipr_cmd
, ipr_reset_ioa_job
, ipr_timeout
, IPR_INTERNAL_TIMEOUT
);
5277 return IPR_RC_JOB_RETURN
;
5281 * ipr_get_mode_page - Locate specified mode page
5282 * @mode_pages: mode page buffer
5283 * @page_code: page code to find
5284 * @len: minimum required length for mode page
5287 * pointer to mode page / NULL on failure
5289 static void *ipr_get_mode_page(struct ipr_mode_pages
*mode_pages
,
5290 u32 page_code
, u32 len
)
5292 struct ipr_mode_page_hdr
*mode_hdr
;
5296 if (!mode_pages
|| (mode_pages
->hdr
.length
== 0))
5299 length
= (mode_pages
->hdr
.length
+ 1) - 4 - mode_pages
->hdr
.block_desc_len
;
5300 mode_hdr
= (struct ipr_mode_page_hdr
*)
5301 (mode_pages
->data
+ mode_pages
->hdr
.block_desc_len
);
5304 if (IPR_GET_MODE_PAGE_CODE(mode_hdr
) == page_code
) {
5305 if (mode_hdr
->page_length
>= (len
- sizeof(struct ipr_mode_page_hdr
)))
5309 page_length
= (sizeof(struct ipr_mode_page_hdr
) +
5310 mode_hdr
->page_length
);
5311 length
-= page_length
;
5312 mode_hdr
= (struct ipr_mode_page_hdr
*)
5313 ((unsigned long)mode_hdr
+ page_length
);
5320 * ipr_check_term_power - Check for term power errors
5321 * @ioa_cfg: ioa config struct
5322 * @mode_pages: IOAFP mode pages buffer
5324 * Check the IOAFP's mode page 28 for term power errors
5329 static void ipr_check_term_power(struct ipr_ioa_cfg
*ioa_cfg
,
5330 struct ipr_mode_pages
*mode_pages
)
5334 struct ipr_dev_bus_entry
*bus
;
5335 struct ipr_mode_page28
*mode_page
;
5337 mode_page
= ipr_get_mode_page(mode_pages
, 0x28,
5338 sizeof(struct ipr_mode_page28
));
5340 entry_length
= mode_page
->entry_length
;
5342 bus
= mode_page
->bus
;
5344 for (i
= 0; i
< mode_page
->num_entries
; i
++) {
5345 if (bus
->flags
& IPR_SCSI_ATTR_NO_TERM_PWR
) {
5346 dev_err(&ioa_cfg
->pdev
->dev
,
5347 "Term power is absent on scsi bus %d\n",
5351 bus
= (struct ipr_dev_bus_entry
*)((char *)bus
+ entry_length
);
5356 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table
5357 * @ioa_cfg: ioa config struct
5359 * Looks through the config table checking for SES devices. If
5360 * the SES device is in the SES table indicating a maximum SCSI
5361 * bus speed, the speed is limited for the bus.
5366 static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg
*ioa_cfg
)
5371 for (i
= 0; i
< IPR_MAX_NUM_BUSES
; i
++) {
5372 max_xfer_rate
= ipr_get_max_scsi_speed(ioa_cfg
, i
,
5373 ioa_cfg
->bus_attr
[i
].bus_width
);
5375 if (max_xfer_rate
< ioa_cfg
->bus_attr
[i
].max_xfer_rate
)
5376 ioa_cfg
->bus_attr
[i
].max_xfer_rate
= max_xfer_rate
;
5381 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28
5382 * @ioa_cfg: ioa config struct
5383 * @mode_pages: mode page 28 buffer
5385 * Updates mode page 28 based on driver configuration
5390 static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg
*ioa_cfg
,
5391 struct ipr_mode_pages
*mode_pages
)
5393 int i
, entry_length
;
5394 struct ipr_dev_bus_entry
*bus
;
5395 struct ipr_bus_attributes
*bus_attr
;
5396 struct ipr_mode_page28
*mode_page
;
5398 mode_page
= ipr_get_mode_page(mode_pages
, 0x28,
5399 sizeof(struct ipr_mode_page28
));
5401 entry_length
= mode_page
->entry_length
;
5403 /* Loop for each device bus entry */
5404 for (i
= 0, bus
= mode_page
->bus
;
5405 i
< mode_page
->num_entries
;
5406 i
++, bus
= (struct ipr_dev_bus_entry
*)((u8
*)bus
+ entry_length
)) {
5407 if (bus
->res_addr
.bus
> IPR_MAX_NUM_BUSES
) {
5408 dev_err(&ioa_cfg
->pdev
->dev
,
5409 "Invalid resource address reported: 0x%08X\n",
5410 IPR_GET_PHYS_LOC(bus
->res_addr
));
5414 bus_attr
= &ioa_cfg
->bus_attr
[i
];
5415 bus
->extended_reset_delay
= IPR_EXTENDED_RESET_DELAY
;
5416 bus
->bus_width
= bus_attr
->bus_width
;
5417 bus
->max_xfer_rate
= cpu_to_be32(bus_attr
->max_xfer_rate
);
5418 bus
->flags
&= ~IPR_SCSI_ATTR_QAS_MASK
;
5419 if (bus_attr
->qas_enabled
)
5420 bus
->flags
|= IPR_SCSI_ATTR_ENABLE_QAS
;
5422 bus
->flags
|= IPR_SCSI_ATTR_DISABLE_QAS
;
5427 * ipr_build_mode_select - Build a mode select command
5428 * @ipr_cmd: ipr command struct
5429 * @res_handle: resource handle to send command to
5430 * @parm: Byte 2 of Mode Sense command
5431 * @dma_addr: DMA buffer address
5432 * @xfer_len: data transfer length
5437 static void ipr_build_mode_select(struct ipr_cmnd
*ipr_cmd
,
5438 __be32 res_handle
, u8 parm
, u32 dma_addr
,
5441 struct ipr_ioadl_desc
*ioadl
= ipr_cmd
->ioadl
;
5442 struct ipr_ioarcb
*ioarcb
= &ipr_cmd
->ioarcb
;
5444 ioarcb
->res_handle
= res_handle
;
5445 ioarcb
->cmd_pkt
.request_type
= IPR_RQTYPE_SCSICDB
;
5446 ioarcb
->cmd_pkt
.flags_hi
|= IPR_FLAGS_HI_WRITE_NOT_READ
;
5447 ioarcb
->cmd_pkt
.cdb
[0] = MODE_SELECT
;
5448 ioarcb
->cmd_pkt
.cdb
[1] = parm
;
5449 ioarcb
->cmd_pkt
.cdb
[4] = xfer_len
;
5451 ioadl
->flags_and_data_len
=
5452 cpu_to_be32(IPR_IOADL_FLAGS_WRITE_LAST
| xfer_len
);
5453 ioadl
->address
= cpu_to_be32(dma_addr
);
5454 ioarcb
->write_ioadl_len
= cpu_to_be32(sizeof(struct ipr_ioadl_desc
));
5455 ioarcb
->write_data_transfer_length
= cpu_to_be32(xfer_len
);
5459 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA
5460 * @ipr_cmd: ipr command struct
5462 * This function sets up the SCSI bus attributes and sends
5463 * a Mode Select for Page 28 to activate them.
5468 static int ipr_ioafp_mode_select_page28(struct ipr_cmnd
*ipr_cmd
)
5470 struct ipr_ioa_cfg
*ioa_cfg
= ipr_cmd
->ioa_cfg
;
5471 struct ipr_mode_pages
*mode_pages
= &ioa_cfg
->vpd_cbs
->mode_pages
;
5475 ipr_scsi_bus_speed_limit(ioa_cfg
);
5476 ipr_check_term_power(ioa_cfg
, mode_pages
);
5477 ipr_modify_ioafp_mode_page_28(ioa_cfg
, mode_pages
);
5478 length
= mode_pages
->hdr
.length
+ 1;
5479 mode_pages
->hdr
.length
= 0;
5481 ipr_build_mode_select(ipr_cmd
, cpu_to_be32(IPR_IOA_RES_HANDLE
), 0x11,
5482 ioa_cfg
->vpd_cbs_dma
+ offsetof(struct ipr_misc_cbs
, mode_pages
),
5485 ipr_cmd
->job_step
= ipr_setup_write_cache
;
5486 ipr_do_req(ipr_cmd
, ipr_reset_ioa_job
, ipr_timeout
, IPR_INTERNAL_TIMEOUT
);
5489 return IPR_RC_JOB_RETURN
;
5493 * ipr_build_mode_sense - Builds a mode sense command
5494 * @ipr_cmd: ipr command struct
5495 * @res: resource entry struct
5496 * @parm: Byte 2 of mode sense command
5497 * @dma_addr: DMA address of mode sense buffer
5498 * @xfer_len: Size of DMA buffer
5503 static void ipr_build_mode_sense(struct ipr_cmnd
*ipr_cmd
,
5505 u8 parm
, u32 dma_addr
, u8 xfer_len
)
5507 struct ipr_ioadl_desc
*ioadl
= ipr_cmd
->ioadl
;
5508 struct ipr_ioarcb
*ioarcb
= &ipr_cmd
->ioarcb
;
5510 ioarcb
->res_handle
= res_handle
;
5511 ioarcb
->cmd_pkt
.cdb
[0] = MODE_SENSE
;
5512 ioarcb
->cmd_pkt
.cdb
[2] = parm
;
5513 ioarcb
->cmd_pkt
.cdb
[4] = xfer_len
;
5514 ioarcb
->cmd_pkt
.request_type
= IPR_RQTYPE_SCSICDB
;
5516 ioadl
->flags_and_data_len
=
5517 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST
| xfer_len
);
5518 ioadl
->address
= cpu_to_be32(dma_addr
);
5519 ioarcb
->read_ioadl_len
= cpu_to_be32(sizeof(struct ipr_ioadl_desc
));
5520 ioarcb
->read_data_transfer_length
= cpu_to_be32(xfer_len
);
5524 * ipr_reset_cmd_failed - Handle failure of IOA reset command
5525 * @ipr_cmd: ipr command struct
5527 * This function handles the failure of an IOA bringup command.
5532 static int ipr_reset_cmd_failed(struct ipr_cmnd
*ipr_cmd
)
5534 struct ipr_ioa_cfg
*ioa_cfg
= ipr_cmd
->ioa_cfg
;
5535 u32 ioasc
= be32_to_cpu(ipr_cmd
->ioasa
.ioasc
);
5537 dev_err(&ioa_cfg
->pdev
->dev
,
5538 "0x%02X failed with IOASC: 0x%08X\n",
5539 ipr_cmd
->ioarcb
.cmd_pkt
.cdb
[0], ioasc
);
5541 ipr_initiate_ioa_reset(ioa_cfg
, IPR_SHUTDOWN_NONE
);
5542 list_add_tail(&ipr_cmd
->queue
, &ioa_cfg
->free_q
);
5543 return IPR_RC_JOB_RETURN
;
5547 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
5548 * @ipr_cmd: ipr command struct
5550 * This function handles the failure of a Mode Sense to the IOAFP.
5551 * Some adapters do not handle all mode pages.
5554 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
5556 static int ipr_reset_mode_sense_failed(struct ipr_cmnd
*ipr_cmd
)
5558 u32 ioasc
= be32_to_cpu(ipr_cmd
->ioasa
.ioasc
);
5560 if (ioasc
== IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT
) {
5561 ipr_cmd
->job_step
= ipr_setup_write_cache
;
5562 return IPR_RC_JOB_CONTINUE
;
5565 return ipr_reset_cmd_failed(ipr_cmd
);
5569 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
5570 * @ipr_cmd: ipr command struct
5572 * This function send a Page 28 mode sense to the IOA to
5573 * retrieve SCSI bus attributes.
5578 static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd
*ipr_cmd
)
5580 struct ipr_ioa_cfg
*ioa_cfg
= ipr_cmd
->ioa_cfg
;
5583 ipr_build_mode_sense(ipr_cmd
, cpu_to_be32(IPR_IOA_RES_HANDLE
),
5584 0x28, ioa_cfg
->vpd_cbs_dma
+
5585 offsetof(struct ipr_misc_cbs
, mode_pages
),
5586 sizeof(struct ipr_mode_pages
));
5588 ipr_cmd
->job_step
= ipr_ioafp_mode_select_page28
;
5589 ipr_cmd
->job_step_failed
= ipr_reset_mode_sense_failed
;
5591 ipr_do_req(ipr_cmd
, ipr_reset_ioa_job
, ipr_timeout
, IPR_INTERNAL_TIMEOUT
);
5594 return IPR_RC_JOB_RETURN
;
5598 * ipr_init_res_table - Initialize the resource table
5599 * @ipr_cmd: ipr command struct
5601 * This function looks through the existing resource table, comparing
5602 * it with the config table. This function will take care of old/new
5603 * devices and schedule adding/removing them from the mid-layer
5607 * IPR_RC_JOB_CONTINUE
5609 static int ipr_init_res_table(struct ipr_cmnd
*ipr_cmd
)
5611 struct ipr_ioa_cfg
*ioa_cfg
= ipr_cmd
->ioa_cfg
;
5612 struct ipr_resource_entry
*res
, *temp
;
5613 struct ipr_config_table_entry
*cfgte
;
5618 if (ioa_cfg
->cfg_table
->hdr
.flags
& IPR_UCODE_DOWNLOAD_REQ
)
5619 dev_err(&ioa_cfg
->pdev
->dev
, "Microcode download required\n");
5621 list_for_each_entry_safe(res
, temp
, &ioa_cfg
->used_res_q
, queue
)
5622 list_move_tail(&res
->queue
, &old_res
);
5624 for (i
= 0; i
< ioa_cfg
->cfg_table
->hdr
.num_entries
; i
++) {
5625 cfgte
= &ioa_cfg
->cfg_table
->dev
[i
];
5628 list_for_each_entry_safe(res
, temp
, &old_res
, queue
) {
5629 if (!memcmp(&res
->cfgte
.res_addr
,
5630 &cfgte
->res_addr
, sizeof(cfgte
->res_addr
))) {
5631 list_move_tail(&res
->queue
, &ioa_cfg
->used_res_q
);
5638 if (list_empty(&ioa_cfg
->free_res_q
)) {
5639 dev_err(&ioa_cfg
->pdev
->dev
, "Too many devices attached\n");
5644 res
= list_entry(ioa_cfg
->free_res_q
.next
,
5645 struct ipr_resource_entry
, queue
);
5646 list_move_tail(&res
->queue
, &ioa_cfg
->used_res_q
);
5647 ipr_init_res_entry(res
);
5652 memcpy(&res
->cfgte
, cfgte
, sizeof(struct ipr_config_table_entry
));
5655 list_for_each_entry_safe(res
, temp
, &old_res
, queue
) {
5657 res
->del_from_ml
= 1;
5658 res
->cfgte
.res_handle
= IPR_INVALID_RES_HANDLE
;
5659 list_move_tail(&res
->queue
, &ioa_cfg
->used_res_q
);
5661 list_move_tail(&res
->queue
, &ioa_cfg
->free_res_q
);
5665 ipr_cmd
->job_step
= ipr_ioafp_mode_sense_page28
;
5668 return IPR_RC_JOB_CONTINUE
;
5672 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter.
5673 * @ipr_cmd: ipr command struct
5675 * This function sends a Query IOA Configuration command
5676 * to the adapter to retrieve the IOA configuration table.
5681 static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd
*ipr_cmd
)
5683 struct ipr_ioa_cfg
*ioa_cfg
= ipr_cmd
->ioa_cfg
;
5684 struct ipr_ioarcb
*ioarcb
= &ipr_cmd
->ioarcb
;
5685 struct ipr_ioadl_desc
*ioadl
= ipr_cmd
->ioadl
;
5686 struct ipr_inquiry_page3
*ucode_vpd
= &ioa_cfg
->vpd_cbs
->page3_data
;
5689 dev_info(&ioa_cfg
->pdev
->dev
, "Adapter firmware version: %02X%02X%02X%02X\n",
5690 ucode_vpd
->major_release
, ucode_vpd
->card_type
,
5691 ucode_vpd
->minor_release
[0], ucode_vpd
->minor_release
[1]);
5692 ioarcb
->cmd_pkt
.request_type
= IPR_RQTYPE_IOACMD
;
5693 ioarcb
->res_handle
= cpu_to_be32(IPR_IOA_RES_HANDLE
);
5695 ioarcb
->cmd_pkt
.cdb
[0] = IPR_QUERY_IOA_CONFIG
;
5696 ioarcb
->cmd_pkt
.cdb
[7] = (sizeof(struct ipr_config_table
) >> 8) & 0xff;
5697 ioarcb
->cmd_pkt
.cdb
[8] = sizeof(struct ipr_config_table
) & 0xff;
5699 ioarcb
->read_ioadl_len
= cpu_to_be32(sizeof(struct ipr_ioadl_desc
));
5700 ioarcb
->read_data_transfer_length
=
5701 cpu_to_be32(sizeof(struct ipr_config_table
));
5703 ioadl
->address
= cpu_to_be32(ioa_cfg
->cfg_table_dma
);
5704 ioadl
->flags_and_data_len
=
5705 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST
| sizeof(struct ipr_config_table
));
5707 ipr_cmd
->job_step
= ipr_init_res_table
;
5709 ipr_do_req(ipr_cmd
, ipr_reset_ioa_job
, ipr_timeout
, IPR_INTERNAL_TIMEOUT
);
5712 return IPR_RC_JOB_RETURN
;
5716 * ipr_ioafp_inquiry - Send an Inquiry to the adapter.
5717 * @ipr_cmd: ipr command struct
5719 * This utility function sends an inquiry to the adapter.
5724 static void ipr_ioafp_inquiry(struct ipr_cmnd
*ipr_cmd
, u8 flags
, u8 page
,
5725 u32 dma_addr
, u8 xfer_len
)
5727 struct ipr_ioarcb
*ioarcb
= &ipr_cmd
->ioarcb
;
5728 struct ipr_ioadl_desc
*ioadl
= ipr_cmd
->ioadl
;
5731 ioarcb
->cmd_pkt
.request_type
= IPR_RQTYPE_SCSICDB
;
5732 ioarcb
->res_handle
= cpu_to_be32(IPR_IOA_RES_HANDLE
);
5734 ioarcb
->cmd_pkt
.cdb
[0] = INQUIRY
;
5735 ioarcb
->cmd_pkt
.cdb
[1] = flags
;
5736 ioarcb
->cmd_pkt
.cdb
[2] = page
;
5737 ioarcb
->cmd_pkt
.cdb
[4] = xfer_len
;
5739 ioarcb
->read_ioadl_len
= cpu_to_be32(sizeof(struct ipr_ioadl_desc
));
5740 ioarcb
->read_data_transfer_length
= cpu_to_be32(xfer_len
);
5742 ioadl
->address
= cpu_to_be32(dma_addr
);
5743 ioadl
->flags_and_data_len
=
5744 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST
| xfer_len
);
5746 ipr_do_req(ipr_cmd
, ipr_reset_ioa_job
, ipr_timeout
, IPR_INTERNAL_TIMEOUT
);
5751 * ipr_inquiry_page_supported - Is the given inquiry page supported
5752 * @page0: inquiry page 0 buffer
5755 * This function determines if the specified inquiry page is supported.
5758 * 1 if page is supported / 0 if not
5760 static int ipr_inquiry_page_supported(struct ipr_inquiry_page0
*page0
, u8 page
)
5764 for (i
= 0; i
< min_t(u8
, page0
->len
, IPR_INQUIRY_PAGE0_ENTRIES
); i
++)
5765 if (page0
->page
[i
] == page
)
5772 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
5773 * @ipr_cmd: ipr command struct
5775 * This function sends a Page 3 inquiry to the adapter
5776 * to retrieve software VPD information.
5779 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
5781 static int ipr_ioafp_page3_inquiry(struct ipr_cmnd
*ipr_cmd
)
5783 struct ipr_ioa_cfg
*ioa_cfg
= ipr_cmd
->ioa_cfg
;
5784 struct ipr_inquiry_page0
*page0
= &ioa_cfg
->vpd_cbs
->page0_data
;
5788 if (!ipr_inquiry_page_supported(page0
, 1))
5789 ioa_cfg
->cache_state
= CACHE_NONE
;
5791 ipr_cmd
->job_step
= ipr_ioafp_query_ioa_cfg
;
5793 ipr_ioafp_inquiry(ipr_cmd
, 1, 3,
5794 ioa_cfg
->vpd_cbs_dma
+ offsetof(struct ipr_misc_cbs
, page3_data
),
5795 sizeof(struct ipr_inquiry_page3
));
5798 return IPR_RC_JOB_RETURN
;
5802 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
5803 * @ipr_cmd: ipr command struct
5805 * This function sends a Page 0 inquiry to the adapter
5806 * to retrieve supported inquiry pages.
5809 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
5811 static int ipr_ioafp_page0_inquiry(struct ipr_cmnd
*ipr_cmd
)
5813 struct ipr_ioa_cfg
*ioa_cfg
= ipr_cmd
->ioa_cfg
;
5818 /* Grab the type out of the VPD and store it away */
5819 memcpy(type
, ioa_cfg
->vpd_cbs
->ioa_vpd
.std_inq_data
.vpids
.product_id
, 4);
5821 ioa_cfg
->type
= simple_strtoul((char *)type
, NULL
, 16);
5823 ipr_cmd
->job_step
= ipr_ioafp_page3_inquiry
;
5825 ipr_ioafp_inquiry(ipr_cmd
, 1, 0,
5826 ioa_cfg
->vpd_cbs_dma
+ offsetof(struct ipr_misc_cbs
, page0_data
),
5827 sizeof(struct ipr_inquiry_page0
));
5830 return IPR_RC_JOB_RETURN
;
5834 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter.
5835 * @ipr_cmd: ipr command struct
5837 * This function sends a standard inquiry to the adapter.
5842 static int ipr_ioafp_std_inquiry(struct ipr_cmnd
*ipr_cmd
)
5844 struct ipr_ioa_cfg
*ioa_cfg
= ipr_cmd
->ioa_cfg
;
5847 ipr_cmd
->job_step
= ipr_ioafp_page0_inquiry
;
5849 ipr_ioafp_inquiry(ipr_cmd
, 0, 0,
5850 ioa_cfg
->vpd_cbs_dma
+ offsetof(struct ipr_misc_cbs
, ioa_vpd
),
5851 sizeof(struct ipr_ioa_vpd
));
5854 return IPR_RC_JOB_RETURN
;
5858 * ipr_ioafp_indentify_hrrq - Send Identify Host RRQ.
5859 * @ipr_cmd: ipr command struct
5861 * This function send an Identify Host Request Response Queue
5862 * command to establish the HRRQ with the adapter.
5867 static int ipr_ioafp_indentify_hrrq(struct ipr_cmnd
*ipr_cmd
)
5869 struct ipr_ioa_cfg
*ioa_cfg
= ipr_cmd
->ioa_cfg
;
5870 struct ipr_ioarcb
*ioarcb
= &ipr_cmd
->ioarcb
;
5873 dev_info(&ioa_cfg
->pdev
->dev
, "Starting IOA initialization sequence.\n");
5875 ioarcb
->cmd_pkt
.cdb
[0] = IPR_ID_HOST_RR_Q
;
5876 ioarcb
->res_handle
= cpu_to_be32(IPR_IOA_RES_HANDLE
);
5878 ioarcb
->cmd_pkt
.request_type
= IPR_RQTYPE_IOACMD
;
5879 ioarcb
->cmd_pkt
.cdb
[2] =
5880 ((u32
) ioa_cfg
->host_rrq_dma
>> 24) & 0xff;
5881 ioarcb
->cmd_pkt
.cdb
[3] =
5882 ((u32
) ioa_cfg
->host_rrq_dma
>> 16) & 0xff;
5883 ioarcb
->cmd_pkt
.cdb
[4] =
5884 ((u32
) ioa_cfg
->host_rrq_dma
>> 8) & 0xff;
5885 ioarcb
->cmd_pkt
.cdb
[5] =
5886 ((u32
) ioa_cfg
->host_rrq_dma
) & 0xff;
5887 ioarcb
->cmd_pkt
.cdb
[7] =
5888 ((sizeof(u32
) * IPR_NUM_CMD_BLKS
) >> 8) & 0xff;
5889 ioarcb
->cmd_pkt
.cdb
[8] =
5890 (sizeof(u32
) * IPR_NUM_CMD_BLKS
) & 0xff;
5892 ipr_cmd
->job_step
= ipr_ioafp_std_inquiry
;
5894 ipr_do_req(ipr_cmd
, ipr_reset_ioa_job
, ipr_timeout
, IPR_INTERNAL_TIMEOUT
);
5897 return IPR_RC_JOB_RETURN
;
5901 * ipr_reset_timer_done - Adapter reset timer function
5902 * @ipr_cmd: ipr command struct
5904 * Description: This function is used in adapter reset processing
5905 * for timing events. If the reset_cmd pointer in the IOA
5906 * config struct is not this adapter's we are doing nested
5907 * resets and fail_all_ops will take care of freeing the
5913 static void ipr_reset_timer_done(struct ipr_cmnd
*ipr_cmd
)
5915 struct ipr_ioa_cfg
*ioa_cfg
= ipr_cmd
->ioa_cfg
;
5916 unsigned long lock_flags
= 0;
5918 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, lock_flags
);
5920 if (ioa_cfg
->reset_cmd
== ipr_cmd
) {
5921 list_del(&ipr_cmd
->queue
);
5922 ipr_cmd
->done(ipr_cmd
);
5925 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
5929 * ipr_reset_start_timer - Start a timer for adapter reset job
5930 * @ipr_cmd: ipr command struct
5931 * @timeout: timeout value
5933 * Description: This function is used in adapter reset processing
5934 * for timing events. If the reset_cmd pointer in the IOA
5935 * config struct is not this adapter's we are doing nested
5936 * resets and fail_all_ops will take care of freeing the
5942 static void ipr_reset_start_timer(struct ipr_cmnd
*ipr_cmd
,
5943 unsigned long timeout
)
5945 list_add_tail(&ipr_cmd
->queue
, &ipr_cmd
->ioa_cfg
->pending_q
);
5946 ipr_cmd
->done
= ipr_reset_ioa_job
;
5948 ipr_cmd
->timer
.data
= (unsigned long) ipr_cmd
;
5949 ipr_cmd
->timer
.expires
= jiffies
+ timeout
;
5950 ipr_cmd
->timer
.function
= (void (*)(unsigned long))ipr_reset_timer_done
;
5951 add_timer(&ipr_cmd
->timer
);
5955 * ipr_init_ioa_mem - Initialize ioa_cfg control block
5956 * @ioa_cfg: ioa cfg struct
5961 static void ipr_init_ioa_mem(struct ipr_ioa_cfg
*ioa_cfg
)
5963 memset(ioa_cfg
->host_rrq
, 0, sizeof(u32
) * IPR_NUM_CMD_BLKS
);
5965 /* Initialize Host RRQ pointers */
5966 ioa_cfg
->hrrq_start
= ioa_cfg
->host_rrq
;
5967 ioa_cfg
->hrrq_end
= &ioa_cfg
->host_rrq
[IPR_NUM_CMD_BLKS
- 1];
5968 ioa_cfg
->hrrq_curr
= ioa_cfg
->hrrq_start
;
5969 ioa_cfg
->toggle_bit
= 1;
5971 /* Zero out config table */
5972 memset(ioa_cfg
->cfg_table
, 0, sizeof(struct ipr_config_table
));
5976 * ipr_reset_enable_ioa - Enable the IOA following a reset.
5977 * @ipr_cmd: ipr command struct
5979 * This function reinitializes some control blocks and
5980 * enables destructive diagnostics on the adapter.
5985 static int ipr_reset_enable_ioa(struct ipr_cmnd
*ipr_cmd
)
5987 struct ipr_ioa_cfg
*ioa_cfg
= ipr_cmd
->ioa_cfg
;
5988 volatile u32 int_reg
;
5991 ipr_cmd
->job_step
= ipr_ioafp_indentify_hrrq
;
5992 ipr_init_ioa_mem(ioa_cfg
);
5994 ioa_cfg
->allow_interrupts
= 1;
5995 int_reg
= readl(ioa_cfg
->regs
.sense_interrupt_reg
);
5997 if (int_reg
& IPR_PCII_IOA_TRANS_TO_OPER
) {
5998 writel((IPR_PCII_ERROR_INTERRUPTS
| IPR_PCII_HRRQ_UPDATED
),
5999 ioa_cfg
->regs
.clr_interrupt_mask_reg
);
6000 int_reg
= readl(ioa_cfg
->regs
.sense_interrupt_mask_reg
);
6001 return IPR_RC_JOB_CONTINUE
;
6004 /* Enable destructive diagnostics on IOA */
6005 writel(ioa_cfg
->doorbell
, ioa_cfg
->regs
.set_uproc_interrupt_reg
);
6007 writel(IPR_PCII_OPER_INTERRUPTS
, ioa_cfg
->regs
.clr_interrupt_mask_reg
);
6008 int_reg
= readl(ioa_cfg
->regs
.sense_interrupt_mask_reg
);
6010 dev_info(&ioa_cfg
->pdev
->dev
, "Initializing IOA.\n");
6012 ipr_cmd
->timer
.data
= (unsigned long) ipr_cmd
;
6013 ipr_cmd
->timer
.expires
= jiffies
+ (ipr_transop_timeout
* HZ
);
6014 ipr_cmd
->timer
.function
= (void (*)(unsigned long))ipr_oper_timeout
;
6015 ipr_cmd
->done
= ipr_reset_ioa_job
;
6016 add_timer(&ipr_cmd
->timer
);
6017 list_add_tail(&ipr_cmd
->queue
, &ioa_cfg
->pending_q
);
6020 return IPR_RC_JOB_RETURN
;
6024 * ipr_reset_wait_for_dump - Wait for a dump to timeout.
6025 * @ipr_cmd: ipr command struct
6027 * This function is invoked when an adapter dump has run out
6028 * of processing time.
6031 * IPR_RC_JOB_CONTINUE
6033 static int ipr_reset_wait_for_dump(struct ipr_cmnd
*ipr_cmd
)
6035 struct ipr_ioa_cfg
*ioa_cfg
= ipr_cmd
->ioa_cfg
;
6037 if (ioa_cfg
->sdt_state
== GET_DUMP
)
6038 ioa_cfg
->sdt_state
= ABORT_DUMP
;
6040 ipr_cmd
->job_step
= ipr_reset_alert
;
6042 return IPR_RC_JOB_CONTINUE
;
6046 * ipr_unit_check_no_data - Log a unit check/no data error log
6047 * @ioa_cfg: ioa config struct
6049 * Logs an error indicating the adapter unit checked, but for some
6050 * reason, we were unable to fetch the unit check buffer.
6055 static void ipr_unit_check_no_data(struct ipr_ioa_cfg
*ioa_cfg
)
6057 ioa_cfg
->errors_logged
++;
6058 dev_err(&ioa_cfg
->pdev
->dev
, "IOA unit check with no data\n");
6062 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA
6063 * @ioa_cfg: ioa config struct
6065 * Fetches the unit check buffer from the adapter by clocking the data
6066 * through the mailbox register.
6071 static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg
*ioa_cfg
)
6073 unsigned long mailbox
;
6074 struct ipr_hostrcb
*hostrcb
;
6075 struct ipr_uc_sdt sdt
;
6078 mailbox
= readl(ioa_cfg
->ioa_mailbox
);
6080 if (!ipr_sdt_is_fmt2(mailbox
)) {
6081 ipr_unit_check_no_data(ioa_cfg
);
6085 memset(&sdt
, 0, sizeof(struct ipr_uc_sdt
));
6086 rc
= ipr_get_ldump_data_section(ioa_cfg
, mailbox
, (__be32
*) &sdt
,
6087 (sizeof(struct ipr_uc_sdt
)) / sizeof(__be32
));
6089 if (rc
|| (be32_to_cpu(sdt
.hdr
.state
) != IPR_FMT2_SDT_READY_TO_USE
) ||
6090 !(sdt
.entry
[0].flags
& IPR_SDT_VALID_ENTRY
)) {
6091 ipr_unit_check_no_data(ioa_cfg
);
6095 /* Find length of the first sdt entry (UC buffer) */
6096 length
= (be32_to_cpu(sdt
.entry
[0].end_offset
) -
6097 be32_to_cpu(sdt
.entry
[0].bar_str_offset
)) & IPR_FMT2_MBX_ADDR_MASK
;
6099 hostrcb
= list_entry(ioa_cfg
->hostrcb_free_q
.next
,
6100 struct ipr_hostrcb
, queue
);
6101 list_del(&hostrcb
->queue
);
6102 memset(&hostrcb
->hcam
, 0, sizeof(hostrcb
->hcam
));
6104 rc
= ipr_get_ldump_data_section(ioa_cfg
,
6105 be32_to_cpu(sdt
.entry
[0].bar_str_offset
),
6106 (__be32
*)&hostrcb
->hcam
,
6107 min(length
, (int)sizeof(hostrcb
->hcam
)) / sizeof(__be32
));
6110 ipr_handle_log_data(ioa_cfg
, hostrcb
);
6112 ipr_unit_check_no_data(ioa_cfg
);
6114 list_add_tail(&hostrcb
->queue
, &ioa_cfg
->hostrcb_free_q
);
6118 * ipr_reset_restore_cfg_space - Restore PCI config space.
6119 * @ipr_cmd: ipr command struct
6121 * Description: This function restores the saved PCI config space of
6122 * the adapter, fails all outstanding ops back to the callers, and
6123 * fetches the dump/unit check if applicable to this reset.
6126 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6128 static int ipr_reset_restore_cfg_space(struct ipr_cmnd
*ipr_cmd
)
6130 struct ipr_ioa_cfg
*ioa_cfg
= ipr_cmd
->ioa_cfg
;
6134 pci_unblock_user_cfg_access(ioa_cfg
->pdev
);
6135 rc
= pci_restore_state(ioa_cfg
->pdev
);
6137 if (rc
!= PCIBIOS_SUCCESSFUL
) {
6138 ipr_cmd
->ioasa
.ioasc
= cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR
);
6139 return IPR_RC_JOB_CONTINUE
;
6142 if (ipr_set_pcix_cmd_reg(ioa_cfg
)) {
6143 ipr_cmd
->ioasa
.ioasc
= cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR
);
6144 return IPR_RC_JOB_CONTINUE
;
6147 ipr_fail_all_ops(ioa_cfg
);
6149 if (ioa_cfg
->ioa_unit_checked
) {
6150 ioa_cfg
->ioa_unit_checked
= 0;
6151 ipr_get_unit_check_buffer(ioa_cfg
);
6152 ipr_cmd
->job_step
= ipr_reset_alert
;
6153 ipr_reset_start_timer(ipr_cmd
, 0);
6154 return IPR_RC_JOB_RETURN
;
6157 if (ioa_cfg
->in_ioa_bringdown
) {
6158 ipr_cmd
->job_step
= ipr_ioa_bringdown_done
;
6160 ipr_cmd
->job_step
= ipr_reset_enable_ioa
;
6162 if (GET_DUMP
== ioa_cfg
->sdt_state
) {
6163 ipr_reset_start_timer(ipr_cmd
, IPR_DUMP_TIMEOUT
);
6164 ipr_cmd
->job_step
= ipr_reset_wait_for_dump
;
6165 schedule_work(&ioa_cfg
->work_q
);
6166 return IPR_RC_JOB_RETURN
;
6171 return IPR_RC_JOB_CONTINUE
;
6175 * ipr_reset_start_bist - Run BIST on the adapter.
6176 * @ipr_cmd: ipr command struct
6178 * Description: This function runs BIST on the adapter, then delays 2 seconds.
6181 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6183 static int ipr_reset_start_bist(struct ipr_cmnd
*ipr_cmd
)
6185 struct ipr_ioa_cfg
*ioa_cfg
= ipr_cmd
->ioa_cfg
;
6189 pci_block_user_cfg_access(ioa_cfg
->pdev
);
6190 rc
= pci_write_config_byte(ioa_cfg
->pdev
, PCI_BIST
, PCI_BIST_START
);
6192 if (rc
!= PCIBIOS_SUCCESSFUL
) {
6193 ipr_cmd
->ioasa
.ioasc
= cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR
);
6194 rc
= IPR_RC_JOB_CONTINUE
;
6196 ipr_cmd
->job_step
= ipr_reset_restore_cfg_space
;
6197 ipr_reset_start_timer(ipr_cmd
, IPR_WAIT_FOR_BIST_TIMEOUT
);
6198 rc
= IPR_RC_JOB_RETURN
;
6206 * ipr_reset_allowed - Query whether or not IOA can be reset
6207 * @ioa_cfg: ioa config struct
6210 * 0 if reset not allowed / non-zero if reset is allowed
6212 static int ipr_reset_allowed(struct ipr_ioa_cfg
*ioa_cfg
)
6214 volatile u32 temp_reg
;
6216 temp_reg
= readl(ioa_cfg
->regs
.sense_interrupt_reg
);
6217 return ((temp_reg
& IPR_PCII_CRITICAL_OPERATION
) == 0);
6221 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA.
6222 * @ipr_cmd: ipr command struct
6224 * Description: This function waits for adapter permission to run BIST,
6225 * then runs BIST. If the adapter does not give permission after a
6226 * reasonable time, we will reset the adapter anyway. The impact of
6227 * resetting the adapter without warning the adapter is the risk of
6228 * losing the persistent error log on the adapter. If the adapter is
6229 * reset while it is writing to the flash on the adapter, the flash
6230 * segment will have bad ECC and be zeroed.
6233 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6235 static int ipr_reset_wait_to_start_bist(struct ipr_cmnd
*ipr_cmd
)
6237 struct ipr_ioa_cfg
*ioa_cfg
= ipr_cmd
->ioa_cfg
;
6238 int rc
= IPR_RC_JOB_RETURN
;
6240 if (!ipr_reset_allowed(ioa_cfg
) && ipr_cmd
->u
.time_left
) {
6241 ipr_cmd
->u
.time_left
-= IPR_CHECK_FOR_RESET_TIMEOUT
;
6242 ipr_reset_start_timer(ipr_cmd
, IPR_CHECK_FOR_RESET_TIMEOUT
);
6244 ipr_cmd
->job_step
= ipr_reset_start_bist
;
6245 rc
= IPR_RC_JOB_CONTINUE
;
6252 * ipr_reset_alert_part2 - Alert the adapter of a pending reset
6253 * @ipr_cmd: ipr command struct
6255 * Description: This function alerts the adapter that it will be reset.
6256 * If memory space is not currently enabled, proceed directly
6257 * to running BIST on the adapter. The timer must always be started
6258 * so we guarantee we do not run BIST from ipr_isr.
6263 static int ipr_reset_alert(struct ipr_cmnd
*ipr_cmd
)
6265 struct ipr_ioa_cfg
*ioa_cfg
= ipr_cmd
->ioa_cfg
;
6270 rc
= pci_read_config_word(ioa_cfg
->pdev
, PCI_COMMAND
, &cmd_reg
);
6272 if ((rc
== PCIBIOS_SUCCESSFUL
) && (cmd_reg
& PCI_COMMAND_MEMORY
)) {
6273 ipr_mask_and_clear_interrupts(ioa_cfg
, ~0);
6274 writel(IPR_UPROCI_RESET_ALERT
, ioa_cfg
->regs
.set_uproc_interrupt_reg
);
6275 ipr_cmd
->job_step
= ipr_reset_wait_to_start_bist
;
6277 ipr_cmd
->job_step
= ipr_reset_start_bist
;
6280 ipr_cmd
->u
.time_left
= IPR_WAIT_FOR_RESET_TIMEOUT
;
6281 ipr_reset_start_timer(ipr_cmd
, IPR_CHECK_FOR_RESET_TIMEOUT
);
6284 return IPR_RC_JOB_RETURN
;
6288 * ipr_reset_ucode_download_done - Microcode download completion
6289 * @ipr_cmd: ipr command struct
6291 * Description: This function unmaps the microcode download buffer.
6294 * IPR_RC_JOB_CONTINUE
6296 static int ipr_reset_ucode_download_done(struct ipr_cmnd
*ipr_cmd
)
6298 struct ipr_ioa_cfg
*ioa_cfg
= ipr_cmd
->ioa_cfg
;
6299 struct ipr_sglist
*sglist
= ioa_cfg
->ucode_sglist
;
6301 pci_unmap_sg(ioa_cfg
->pdev
, sglist
->scatterlist
,
6302 sglist
->num_sg
, DMA_TO_DEVICE
);
6304 ipr_cmd
->job_step
= ipr_reset_alert
;
6305 return IPR_RC_JOB_CONTINUE
;
6309 * ipr_reset_ucode_download - Download microcode to the adapter
6310 * @ipr_cmd: ipr command struct
6312 * Description: This function checks to see if it there is microcode
6313 * to download to the adapter. If there is, a download is performed.
6316 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6318 static int ipr_reset_ucode_download(struct ipr_cmnd
*ipr_cmd
)
6320 struct ipr_ioa_cfg
*ioa_cfg
= ipr_cmd
->ioa_cfg
;
6321 struct ipr_sglist
*sglist
= ioa_cfg
->ucode_sglist
;
6324 ipr_cmd
->job_step
= ipr_reset_alert
;
6327 return IPR_RC_JOB_CONTINUE
;
6329 ipr_cmd
->ioarcb
.res_handle
= cpu_to_be32(IPR_IOA_RES_HANDLE
);
6330 ipr_cmd
->ioarcb
.cmd_pkt
.request_type
= IPR_RQTYPE_SCSICDB
;
6331 ipr_cmd
->ioarcb
.cmd_pkt
.cdb
[0] = WRITE_BUFFER
;
6332 ipr_cmd
->ioarcb
.cmd_pkt
.cdb
[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE
;
6333 ipr_cmd
->ioarcb
.cmd_pkt
.cdb
[6] = (sglist
->buffer_len
& 0xff0000) >> 16;
6334 ipr_cmd
->ioarcb
.cmd_pkt
.cdb
[7] = (sglist
->buffer_len
& 0x00ff00) >> 8;
6335 ipr_cmd
->ioarcb
.cmd_pkt
.cdb
[8] = sglist
->buffer_len
& 0x0000ff;
6337 ipr_build_ucode_ioadl(ipr_cmd
, sglist
);
6338 ipr_cmd
->job_step
= ipr_reset_ucode_download_done
;
6340 ipr_do_req(ipr_cmd
, ipr_reset_ioa_job
, ipr_timeout
,
6341 IPR_WRITE_BUFFER_TIMEOUT
);
6344 return IPR_RC_JOB_RETURN
;
6348 * ipr_reset_shutdown_ioa - Shutdown the adapter
6349 * @ipr_cmd: ipr command struct
6351 * Description: This function issues an adapter shutdown of the
6352 * specified type to the specified adapter as part of the
6353 * adapter reset job.
6356 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6358 static int ipr_reset_shutdown_ioa(struct ipr_cmnd
*ipr_cmd
)
6360 struct ipr_ioa_cfg
*ioa_cfg
= ipr_cmd
->ioa_cfg
;
6361 enum ipr_shutdown_type shutdown_type
= ipr_cmd
->u
.shutdown_type
;
6362 unsigned long timeout
;
6363 int rc
= IPR_RC_JOB_CONTINUE
;
6366 if (shutdown_type
!= IPR_SHUTDOWN_NONE
&& !ioa_cfg
->ioa_is_dead
) {
6367 ipr_cmd
->ioarcb
.res_handle
= cpu_to_be32(IPR_IOA_RES_HANDLE
);
6368 ipr_cmd
->ioarcb
.cmd_pkt
.request_type
= IPR_RQTYPE_IOACMD
;
6369 ipr_cmd
->ioarcb
.cmd_pkt
.cdb
[0] = IPR_IOA_SHUTDOWN
;
6370 ipr_cmd
->ioarcb
.cmd_pkt
.cdb
[1] = shutdown_type
;
6372 if (shutdown_type
== IPR_SHUTDOWN_ABBREV
)
6373 timeout
= IPR_ABBREV_SHUTDOWN_TIMEOUT
;
6374 else if (shutdown_type
== IPR_SHUTDOWN_PREPARE_FOR_NORMAL
)
6375 timeout
= IPR_INTERNAL_TIMEOUT
;
6377 timeout
= IPR_SHUTDOWN_TIMEOUT
;
6379 ipr_do_req(ipr_cmd
, ipr_reset_ioa_job
, ipr_timeout
, timeout
);
6381 rc
= IPR_RC_JOB_RETURN
;
6382 ipr_cmd
->job_step
= ipr_reset_ucode_download
;
6384 ipr_cmd
->job_step
= ipr_reset_alert
;
6391 * ipr_reset_ioa_job - Adapter reset job
6392 * @ipr_cmd: ipr command struct
6394 * Description: This function is the job router for the adapter reset job.
6399 static void ipr_reset_ioa_job(struct ipr_cmnd
*ipr_cmd
)
6402 struct ipr_ioa_cfg
*ioa_cfg
= ipr_cmd
->ioa_cfg
;
6405 ioasc
= be32_to_cpu(ipr_cmd
->ioasa
.ioasc
);
6407 if (ioa_cfg
->reset_cmd
!= ipr_cmd
) {
6409 * We are doing nested adapter resets and this is
6410 * not the current reset job.
6412 list_add_tail(&ipr_cmd
->queue
, &ioa_cfg
->free_q
);
6416 if (IPR_IOASC_SENSE_KEY(ioasc
)) {
6417 rc
= ipr_cmd
->job_step_failed(ipr_cmd
);
6418 if (rc
== IPR_RC_JOB_RETURN
)
6422 ipr_reinit_ipr_cmnd(ipr_cmd
);
6423 ipr_cmd
->job_step_failed
= ipr_reset_cmd_failed
;
6424 rc
= ipr_cmd
->job_step(ipr_cmd
);
6425 } while(rc
== IPR_RC_JOB_CONTINUE
);
6429 * _ipr_initiate_ioa_reset - Initiate an adapter reset
6430 * @ioa_cfg: ioa config struct
6431 * @job_step: first job step of reset job
6432 * @shutdown_type: shutdown type
6434 * Description: This function will initiate the reset of the given adapter
6435 * starting at the selected job step.
6436 * If the caller needs to wait on the completion of the reset,
6437 * the caller must sleep on the reset_wait_q.
6442 static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg
*ioa_cfg
,
6443 int (*job_step
) (struct ipr_cmnd
*),
6444 enum ipr_shutdown_type shutdown_type
)
6446 struct ipr_cmnd
*ipr_cmd
;
6448 ioa_cfg
->in_reset_reload
= 1;
6449 ioa_cfg
->allow_cmds
= 0;
6450 scsi_block_requests(ioa_cfg
->host
);
6452 ipr_cmd
= ipr_get_free_ipr_cmnd(ioa_cfg
);
6453 ioa_cfg
->reset_cmd
= ipr_cmd
;
6454 ipr_cmd
->job_step
= job_step
;
6455 ipr_cmd
->u
.shutdown_type
= shutdown_type
;
6457 ipr_reset_ioa_job(ipr_cmd
);
6461 * ipr_initiate_ioa_reset - Initiate an adapter reset
6462 * @ioa_cfg: ioa config struct
6463 * @shutdown_type: shutdown type
6465 * Description: This function will initiate the reset of the given adapter.
6466 * If the caller needs to wait on the completion of the reset,
6467 * the caller must sleep on the reset_wait_q.
6472 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg
*ioa_cfg
,
6473 enum ipr_shutdown_type shutdown_type
)
6475 if (ioa_cfg
->ioa_is_dead
)
6478 if (ioa_cfg
->in_reset_reload
&& ioa_cfg
->sdt_state
== GET_DUMP
)
6479 ioa_cfg
->sdt_state
= ABORT_DUMP
;
6481 if (ioa_cfg
->reset_retries
++ >= IPR_NUM_RESET_RELOAD_RETRIES
) {
6482 dev_err(&ioa_cfg
->pdev
->dev
,
6483 "IOA taken offline - error recovery failed\n");
6485 ioa_cfg
->reset_retries
= 0;
6486 ioa_cfg
->ioa_is_dead
= 1;
6488 if (ioa_cfg
->in_ioa_bringdown
) {
6489 ioa_cfg
->reset_cmd
= NULL
;
6490 ioa_cfg
->in_reset_reload
= 0;
6491 ipr_fail_all_ops(ioa_cfg
);
6492 wake_up_all(&ioa_cfg
->reset_wait_q
);
6494 spin_unlock_irq(ioa_cfg
->host
->host_lock
);
6495 scsi_unblock_requests(ioa_cfg
->host
);
6496 spin_lock_irq(ioa_cfg
->host
->host_lock
);
6499 ioa_cfg
->in_ioa_bringdown
= 1;
6500 shutdown_type
= IPR_SHUTDOWN_NONE
;
6504 _ipr_initiate_ioa_reset(ioa_cfg
, ipr_reset_shutdown_ioa
,
6509 * ipr_reset_freeze - Hold off all I/O activity
6510 * @ipr_cmd: ipr command struct
6512 * Description: If the PCI slot is frozen, hold off all I/O
6513 * activity; then, as soon as the slot is available again,
6514 * initiate an adapter reset.
6516 static int ipr_reset_freeze(struct ipr_cmnd
*ipr_cmd
)
6518 /* Disallow new interrupts, avoid loop */
6519 ipr_cmd
->ioa_cfg
->allow_interrupts
= 0;
6520 list_add_tail(&ipr_cmd
->queue
, &ipr_cmd
->ioa_cfg
->pending_q
);
6521 ipr_cmd
->done
= ipr_reset_ioa_job
;
6522 return IPR_RC_JOB_RETURN
;
6526 * ipr_pci_frozen - Called when slot has experienced a PCI bus error.
6527 * @pdev: PCI device struct
6529 * Description: This routine is called to tell us that the PCI bus
6530 * is down. Can't do anything here, except put the device driver
6531 * into a holding pattern, waiting for the PCI bus to come back.
6533 static void ipr_pci_frozen(struct pci_dev
*pdev
)
6535 unsigned long flags
= 0;
6536 struct ipr_ioa_cfg
*ioa_cfg
= pci_get_drvdata(pdev
);
6538 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, flags
);
6539 _ipr_initiate_ioa_reset(ioa_cfg
, ipr_reset_freeze
, IPR_SHUTDOWN_NONE
);
6540 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, flags
);
6544 * ipr_pci_slot_reset - Called when PCI slot has been reset.
6545 * @pdev: PCI device struct
6547 * Description: This routine is called by the pci error recovery
6548 * code after the PCI slot has been reset, just before we
6549 * should resume normal operations.
6551 static pci_ers_result_t
ipr_pci_slot_reset(struct pci_dev
*pdev
)
6553 unsigned long flags
= 0;
6554 struct ipr_ioa_cfg
*ioa_cfg
= pci_get_drvdata(pdev
);
6556 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, flags
);
6557 _ipr_initiate_ioa_reset(ioa_cfg
, ipr_reset_restore_cfg_space
,
6559 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, flags
);
6560 return PCI_ERS_RESULT_RECOVERED
;
6564 * ipr_pci_perm_failure - Called when PCI slot is dead for good.
6565 * @pdev: PCI device struct
6567 * Description: This routine is called when the PCI bus has
6568 * permanently failed.
6570 static void ipr_pci_perm_failure(struct pci_dev
*pdev
)
6572 unsigned long flags
= 0;
6573 struct ipr_ioa_cfg
*ioa_cfg
= pci_get_drvdata(pdev
);
6575 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, flags
);
6576 if (ioa_cfg
->sdt_state
== WAIT_FOR_DUMP
)
6577 ioa_cfg
->sdt_state
= ABORT_DUMP
;
6578 ioa_cfg
->reset_retries
= IPR_NUM_RESET_RELOAD_RETRIES
;
6579 ioa_cfg
->in_ioa_bringdown
= 1;
6580 ipr_initiate_ioa_reset(ioa_cfg
, IPR_SHUTDOWN_NONE
);
6581 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, flags
);
6585 * ipr_pci_error_detected - Called when a PCI error is detected.
6586 * @pdev: PCI device struct
6587 * @state: PCI channel state
6589 * Description: Called when a PCI error is detected.
6592 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
6594 static pci_ers_result_t
ipr_pci_error_detected(struct pci_dev
*pdev
,
6595 pci_channel_state_t state
)
6598 case pci_channel_io_frozen
:
6599 ipr_pci_frozen(pdev
);
6600 return PCI_ERS_RESULT_NEED_RESET
;
6601 case pci_channel_io_perm_failure
:
6602 ipr_pci_perm_failure(pdev
);
6603 return PCI_ERS_RESULT_DISCONNECT
;
6608 return PCI_ERS_RESULT_NEED_RESET
;
6612 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..)
6613 * @ioa_cfg: ioa cfg struct
6615 * Description: This is the second phase of adapter intialization
6616 * This function takes care of initilizing the adapter to the point
6617 * where it can accept new commands.
6620 * 0 on sucess / -EIO on failure
6622 static int __devinit
ipr_probe_ioa_part2(struct ipr_ioa_cfg
*ioa_cfg
)
6625 unsigned long host_lock_flags
= 0;
6628 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, host_lock_flags
);
6629 dev_dbg(&ioa_cfg
->pdev
->dev
, "ioa_cfg adx: 0x%p\n", ioa_cfg
);
6630 if (ioa_cfg
->needs_hard_reset
) {
6631 ioa_cfg
->needs_hard_reset
= 0;
6632 ipr_initiate_ioa_reset(ioa_cfg
, IPR_SHUTDOWN_NONE
);
6634 _ipr_initiate_ioa_reset(ioa_cfg
, ipr_reset_enable_ioa
,
6637 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, host_lock_flags
);
6638 wait_event(ioa_cfg
->reset_wait_q
, !ioa_cfg
->in_reset_reload
);
6639 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, host_lock_flags
);
6641 if (ioa_cfg
->ioa_is_dead
) {
6643 } else if (ipr_invalid_adapter(ioa_cfg
)) {
6647 dev_err(&ioa_cfg
->pdev
->dev
,
6648 "Adapter not supported in this hardware configuration.\n");
6651 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, host_lock_flags
);
6658 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter
6659 * @ioa_cfg: ioa config struct
6664 static void ipr_free_cmd_blks(struct ipr_ioa_cfg
*ioa_cfg
)
6668 for (i
= 0; i
< IPR_NUM_CMD_BLKS
; i
++) {
6669 if (ioa_cfg
->ipr_cmnd_list
[i
])
6670 pci_pool_free(ioa_cfg
->ipr_cmd_pool
,
6671 ioa_cfg
->ipr_cmnd_list
[i
],
6672 ioa_cfg
->ipr_cmnd_list_dma
[i
]);
6674 ioa_cfg
->ipr_cmnd_list
[i
] = NULL
;
6677 if (ioa_cfg
->ipr_cmd_pool
)
6678 pci_pool_destroy (ioa_cfg
->ipr_cmd_pool
);
6680 ioa_cfg
->ipr_cmd_pool
= NULL
;
6684 * ipr_free_mem - Frees memory allocated for an adapter
6685 * @ioa_cfg: ioa cfg struct
6690 static void ipr_free_mem(struct ipr_ioa_cfg
*ioa_cfg
)
6694 kfree(ioa_cfg
->res_entries
);
6695 pci_free_consistent(ioa_cfg
->pdev
, sizeof(struct ipr_misc_cbs
),
6696 ioa_cfg
->vpd_cbs
, ioa_cfg
->vpd_cbs_dma
);
6697 ipr_free_cmd_blks(ioa_cfg
);
6698 pci_free_consistent(ioa_cfg
->pdev
, sizeof(u32
) * IPR_NUM_CMD_BLKS
,
6699 ioa_cfg
->host_rrq
, ioa_cfg
->host_rrq_dma
);
6700 pci_free_consistent(ioa_cfg
->pdev
, sizeof(struct ipr_config_table
),
6702 ioa_cfg
->cfg_table_dma
);
6704 for (i
= 0; i
< IPR_NUM_HCAMS
; i
++) {
6705 pci_free_consistent(ioa_cfg
->pdev
,
6706 sizeof(struct ipr_hostrcb
),
6707 ioa_cfg
->hostrcb
[i
],
6708 ioa_cfg
->hostrcb_dma
[i
]);
6711 ipr_free_dump(ioa_cfg
);
6712 kfree(ioa_cfg
->trace
);
6716 * ipr_free_all_resources - Free all allocated resources for an adapter.
6717 * @ipr_cmd: ipr command struct
6719 * This function frees all allocated resources for the
6720 * specified adapter.
6725 static void ipr_free_all_resources(struct ipr_ioa_cfg
*ioa_cfg
)
6727 struct pci_dev
*pdev
= ioa_cfg
->pdev
;
6730 free_irq(pdev
->irq
, ioa_cfg
);
6731 iounmap(ioa_cfg
->hdw_dma_regs
);
6732 pci_release_regions(pdev
);
6733 ipr_free_mem(ioa_cfg
);
6734 scsi_host_put(ioa_cfg
->host
);
6735 pci_disable_device(pdev
);
6740 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter
6741 * @ioa_cfg: ioa config struct
6744 * 0 on success / -ENOMEM on allocation failure
6746 static int __devinit
ipr_alloc_cmd_blks(struct ipr_ioa_cfg
*ioa_cfg
)
6748 struct ipr_cmnd
*ipr_cmd
;
6749 struct ipr_ioarcb
*ioarcb
;
6750 dma_addr_t dma_addr
;
6753 ioa_cfg
->ipr_cmd_pool
= pci_pool_create (IPR_NAME
, ioa_cfg
->pdev
,
6754 sizeof(struct ipr_cmnd
), 8, 0);
6756 if (!ioa_cfg
->ipr_cmd_pool
)
6759 for (i
= 0; i
< IPR_NUM_CMD_BLKS
; i
++) {
6760 ipr_cmd
= pci_pool_alloc (ioa_cfg
->ipr_cmd_pool
, SLAB_KERNEL
, &dma_addr
);
6763 ipr_free_cmd_blks(ioa_cfg
);
6767 memset(ipr_cmd
, 0, sizeof(*ipr_cmd
));
6768 ioa_cfg
->ipr_cmnd_list
[i
] = ipr_cmd
;
6769 ioa_cfg
->ipr_cmnd_list_dma
[i
] = dma_addr
;
6771 ioarcb
= &ipr_cmd
->ioarcb
;
6772 ioarcb
->ioarcb_host_pci_addr
= cpu_to_be32(dma_addr
);
6773 ioarcb
->host_response_handle
= cpu_to_be32(i
<< 2);
6774 ioarcb
->write_ioadl_addr
=
6775 cpu_to_be32(dma_addr
+ offsetof(struct ipr_cmnd
, ioadl
));
6776 ioarcb
->read_ioadl_addr
= ioarcb
->write_ioadl_addr
;
6777 ioarcb
->ioasa_host_pci_addr
=
6778 cpu_to_be32(dma_addr
+ offsetof(struct ipr_cmnd
, ioasa
));
6779 ioarcb
->ioasa_len
= cpu_to_be16(sizeof(struct ipr_ioasa
));
6780 ipr_cmd
->cmd_index
= i
;
6781 ipr_cmd
->ioa_cfg
= ioa_cfg
;
6782 ipr_cmd
->sense_buffer_dma
= dma_addr
+
6783 offsetof(struct ipr_cmnd
, sense_buffer
);
6785 list_add_tail(&ipr_cmd
->queue
, &ioa_cfg
->free_q
);
6792 * ipr_alloc_mem - Allocate memory for an adapter
6793 * @ioa_cfg: ioa config struct
6796 * 0 on success / non-zero for error
6798 static int __devinit
ipr_alloc_mem(struct ipr_ioa_cfg
*ioa_cfg
)
6800 struct pci_dev
*pdev
= ioa_cfg
->pdev
;
6801 int i
, rc
= -ENOMEM
;
6804 ioa_cfg
->res_entries
= kzalloc(sizeof(struct ipr_resource_entry
) *
6805 IPR_MAX_PHYSICAL_DEVS
, GFP_KERNEL
);
6807 if (!ioa_cfg
->res_entries
)
6810 for (i
= 0; i
< IPR_MAX_PHYSICAL_DEVS
; i
++)
6811 list_add_tail(&ioa_cfg
->res_entries
[i
].queue
, &ioa_cfg
->free_res_q
);
6813 ioa_cfg
->vpd_cbs
= pci_alloc_consistent(ioa_cfg
->pdev
,
6814 sizeof(struct ipr_misc_cbs
),
6815 &ioa_cfg
->vpd_cbs_dma
);
6817 if (!ioa_cfg
->vpd_cbs
)
6818 goto out_free_res_entries
;
6820 if (ipr_alloc_cmd_blks(ioa_cfg
))
6821 goto out_free_vpd_cbs
;
6823 ioa_cfg
->host_rrq
= pci_alloc_consistent(ioa_cfg
->pdev
,
6824 sizeof(u32
) * IPR_NUM_CMD_BLKS
,
6825 &ioa_cfg
->host_rrq_dma
);
6827 if (!ioa_cfg
->host_rrq
)
6828 goto out_ipr_free_cmd_blocks
;
6830 ioa_cfg
->cfg_table
= pci_alloc_consistent(ioa_cfg
->pdev
,
6831 sizeof(struct ipr_config_table
),
6832 &ioa_cfg
->cfg_table_dma
);
6834 if (!ioa_cfg
->cfg_table
)
6835 goto out_free_host_rrq
;
6837 for (i
= 0; i
< IPR_NUM_HCAMS
; i
++) {
6838 ioa_cfg
->hostrcb
[i
] = pci_alloc_consistent(ioa_cfg
->pdev
,
6839 sizeof(struct ipr_hostrcb
),
6840 &ioa_cfg
->hostrcb_dma
[i
]);
6842 if (!ioa_cfg
->hostrcb
[i
])
6843 goto out_free_hostrcb_dma
;
6845 ioa_cfg
->hostrcb
[i
]->hostrcb_dma
=
6846 ioa_cfg
->hostrcb_dma
[i
] + offsetof(struct ipr_hostrcb
, hcam
);
6847 list_add_tail(&ioa_cfg
->hostrcb
[i
]->queue
, &ioa_cfg
->hostrcb_free_q
);
6850 ioa_cfg
->trace
= kzalloc(sizeof(struct ipr_trace_entry
) *
6851 IPR_NUM_TRACE_ENTRIES
, GFP_KERNEL
);
6853 if (!ioa_cfg
->trace
)
6854 goto out_free_hostrcb_dma
;
6861 out_free_hostrcb_dma
:
6863 pci_free_consistent(pdev
, sizeof(struct ipr_hostrcb
),
6864 ioa_cfg
->hostrcb
[i
],
6865 ioa_cfg
->hostrcb_dma
[i
]);
6867 pci_free_consistent(pdev
, sizeof(struct ipr_config_table
),
6868 ioa_cfg
->cfg_table
, ioa_cfg
->cfg_table_dma
);
6870 pci_free_consistent(pdev
, sizeof(u32
) * IPR_NUM_CMD_BLKS
,
6871 ioa_cfg
->host_rrq
, ioa_cfg
->host_rrq_dma
);
6872 out_ipr_free_cmd_blocks
:
6873 ipr_free_cmd_blks(ioa_cfg
);
6875 pci_free_consistent(pdev
, sizeof(struct ipr_misc_cbs
),
6876 ioa_cfg
->vpd_cbs
, ioa_cfg
->vpd_cbs_dma
);
6877 out_free_res_entries
:
6878 kfree(ioa_cfg
->res_entries
);
6883 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values
6884 * @ioa_cfg: ioa config struct
6889 static void __devinit
ipr_initialize_bus_attr(struct ipr_ioa_cfg
*ioa_cfg
)
6893 for (i
= 0; i
< IPR_MAX_NUM_BUSES
; i
++) {
6894 ioa_cfg
->bus_attr
[i
].bus
= i
;
6895 ioa_cfg
->bus_attr
[i
].qas_enabled
= 0;
6896 ioa_cfg
->bus_attr
[i
].bus_width
= IPR_DEFAULT_BUS_WIDTH
;
6897 if (ipr_max_speed
< ARRAY_SIZE(ipr_max_bus_speeds
))
6898 ioa_cfg
->bus_attr
[i
].max_xfer_rate
= ipr_max_bus_speeds
[ipr_max_speed
];
6900 ioa_cfg
->bus_attr
[i
].max_xfer_rate
= IPR_U160_SCSI_RATE
;
6905 * ipr_init_ioa_cfg - Initialize IOA config struct
6906 * @ioa_cfg: ioa config struct
6907 * @host: scsi host struct
6908 * @pdev: PCI dev struct
6913 static void __devinit
ipr_init_ioa_cfg(struct ipr_ioa_cfg
*ioa_cfg
,
6914 struct Scsi_Host
*host
, struct pci_dev
*pdev
)
6916 const struct ipr_interrupt_offsets
*p
;
6917 struct ipr_interrupts
*t
;
6920 ioa_cfg
->host
= host
;
6921 ioa_cfg
->pdev
= pdev
;
6922 ioa_cfg
->log_level
= ipr_log_level
;
6923 ioa_cfg
->doorbell
= IPR_DOORBELL
;
6924 if (!ipr_auto_create
)
6925 ioa_cfg
->doorbell
|= IPR_RUNTIME_RESET
;
6926 sprintf(ioa_cfg
->eye_catcher
, IPR_EYECATCHER
);
6927 sprintf(ioa_cfg
->trace_start
, IPR_TRACE_START_LABEL
);
6928 sprintf(ioa_cfg
->ipr_free_label
, IPR_FREEQ_LABEL
);
6929 sprintf(ioa_cfg
->ipr_pending_label
, IPR_PENDQ_LABEL
);
6930 sprintf(ioa_cfg
->cfg_table_start
, IPR_CFG_TBL_START
);
6931 sprintf(ioa_cfg
->resource_table_label
, IPR_RES_TABLE_LABEL
);
6932 sprintf(ioa_cfg
->ipr_hcam_label
, IPR_HCAM_LABEL
);
6933 sprintf(ioa_cfg
->ipr_cmd_label
, IPR_CMD_LABEL
);
6935 INIT_LIST_HEAD(&ioa_cfg
->free_q
);
6936 INIT_LIST_HEAD(&ioa_cfg
->pending_q
);
6937 INIT_LIST_HEAD(&ioa_cfg
->hostrcb_free_q
);
6938 INIT_LIST_HEAD(&ioa_cfg
->hostrcb_pending_q
);
6939 INIT_LIST_HEAD(&ioa_cfg
->free_res_q
);
6940 INIT_LIST_HEAD(&ioa_cfg
->used_res_q
);
6941 INIT_WORK(&ioa_cfg
->work_q
, ipr_worker_thread
, ioa_cfg
);
6942 init_waitqueue_head(&ioa_cfg
->reset_wait_q
);
6943 ioa_cfg
->sdt_state
= INACTIVE
;
6944 if (ipr_enable_cache
)
6945 ioa_cfg
->cache_state
= CACHE_ENABLED
;
6947 ioa_cfg
->cache_state
= CACHE_DISABLED
;
6949 ipr_initialize_bus_attr(ioa_cfg
);
6951 host
->max_id
= IPR_MAX_NUM_TARGETS_PER_BUS
;
6952 host
->max_lun
= IPR_MAX_NUM_LUNS_PER_TARGET
;
6953 host
->max_channel
= IPR_MAX_BUS_TO_SCAN
;
6954 host
->unique_id
= host
->host_no
;
6955 host
->max_cmd_len
= IPR_MAX_CDB_LEN
;
6956 pci_set_drvdata(pdev
, ioa_cfg
);
6958 p
= &ioa_cfg
->chip_cfg
->regs
;
6960 base
= ioa_cfg
->hdw_dma_regs
;
6962 t
->set_interrupt_mask_reg
= base
+ p
->set_interrupt_mask_reg
;
6963 t
->clr_interrupt_mask_reg
= base
+ p
->clr_interrupt_mask_reg
;
6964 t
->sense_interrupt_mask_reg
= base
+ p
->sense_interrupt_mask_reg
;
6965 t
->clr_interrupt_reg
= base
+ p
->clr_interrupt_reg
;
6966 t
->sense_interrupt_reg
= base
+ p
->sense_interrupt_reg
;
6967 t
->ioarrin_reg
= base
+ p
->ioarrin_reg
;
6968 t
->sense_uproc_interrupt_reg
= base
+ p
->sense_uproc_interrupt_reg
;
6969 t
->set_uproc_interrupt_reg
= base
+ p
->set_uproc_interrupt_reg
;
6970 t
->clr_uproc_interrupt_reg
= base
+ p
->clr_uproc_interrupt_reg
;
6974 * ipr_get_chip_cfg - Find adapter chip configuration
6975 * @dev_id: PCI device id struct
6978 * ptr to chip config on success / NULL on failure
6980 static const struct ipr_chip_cfg_t
* __devinit
6981 ipr_get_chip_cfg(const struct pci_device_id
*dev_id
)
6985 if (dev_id
->driver_data
)
6986 return (const struct ipr_chip_cfg_t
*)dev_id
->driver_data
;
6988 for (i
= 0; i
< ARRAY_SIZE(ipr_chip
); i
++)
6989 if (ipr_chip
[i
].vendor
== dev_id
->vendor
&&
6990 ipr_chip
[i
].device
== dev_id
->device
)
6991 return ipr_chip
[i
].cfg
;
6996 * ipr_probe_ioa - Allocates memory and does first stage of initialization
6997 * @pdev: PCI device struct
6998 * @dev_id: PCI device id struct
7001 * 0 on success / non-zero on failure
7003 static int __devinit
ipr_probe_ioa(struct pci_dev
*pdev
,
7004 const struct pci_device_id
*dev_id
)
7006 struct ipr_ioa_cfg
*ioa_cfg
;
7007 struct Scsi_Host
*host
;
7008 unsigned long ipr_regs_pci
;
7009 void __iomem
*ipr_regs
;
7010 int rc
= PCIBIOS_SUCCESSFUL
;
7011 volatile u32 mask
, uproc
;
7015 if ((rc
= pci_enable_device(pdev
))) {
7016 dev_err(&pdev
->dev
, "Cannot enable adapter\n");
7020 dev_info(&pdev
->dev
, "Found IOA with IRQ: %d\n", pdev
->irq
);
7022 host
= scsi_host_alloc(&driver_template
, sizeof(*ioa_cfg
));
7025 dev_err(&pdev
->dev
, "call to scsi_host_alloc failed!\n");
7030 ioa_cfg
= (struct ipr_ioa_cfg
*)host
->hostdata
;
7031 memset(ioa_cfg
, 0, sizeof(struct ipr_ioa_cfg
));
7032 host
->transportt
= &ipr_transport_template
;
7033 ata_host_init(&ioa_cfg
->ata_host
, &pdev
->dev
,
7034 sata_port_info
.flags
, &ipr_sata_ops
);
7036 ioa_cfg
->chip_cfg
= ipr_get_chip_cfg(dev_id
);
7038 if (!ioa_cfg
->chip_cfg
) {
7039 dev_err(&pdev
->dev
, "Unknown adapter chipset 0x%04X 0x%04X\n",
7040 dev_id
->vendor
, dev_id
->device
);
7041 goto out_scsi_host_put
;
7044 ipr_regs_pci
= pci_resource_start(pdev
, 0);
7046 rc
= pci_request_regions(pdev
, IPR_NAME
);
7049 "Couldn't register memory range of registers\n");
7050 goto out_scsi_host_put
;
7053 ipr_regs
= ioremap(ipr_regs_pci
, pci_resource_len(pdev
, 0));
7057 "Couldn't map memory range of registers\n");
7059 goto out_release_regions
;
7062 ioa_cfg
->hdw_dma_regs
= ipr_regs
;
7063 ioa_cfg
->hdw_dma_regs_pci
= ipr_regs_pci
;
7064 ioa_cfg
->ioa_mailbox
= ioa_cfg
->chip_cfg
->mailbox
+ ipr_regs
;
7066 ipr_init_ioa_cfg(ioa_cfg
, host
, pdev
);
7068 pci_set_master(pdev
);
7070 rc
= pci_set_dma_mask(pdev
, DMA_32BIT_MASK
);
7072 dev_err(&pdev
->dev
, "Failed to set PCI DMA mask\n");
7076 rc
= pci_write_config_byte(pdev
, PCI_CACHE_LINE_SIZE
,
7077 ioa_cfg
->chip_cfg
->cache_line_size
);
7079 if (rc
!= PCIBIOS_SUCCESSFUL
) {
7080 dev_err(&pdev
->dev
, "Write of cache line size failed\n");
7085 /* Save away PCI config space for use following IOA reset */
7086 rc
= pci_save_state(pdev
);
7088 if (rc
!= PCIBIOS_SUCCESSFUL
) {
7089 dev_err(&pdev
->dev
, "Failed to save PCI config space\n");
7094 if ((rc
= ipr_save_pcix_cmd_reg(ioa_cfg
)))
7097 if ((rc
= ipr_set_pcix_cmd_reg(ioa_cfg
)))
7100 rc
= ipr_alloc_mem(ioa_cfg
);
7103 "Couldn't allocate enough memory for device driver!\n");
7108 * If HRRQ updated interrupt is not masked, or reset alert is set,
7109 * the card is in an unknown state and needs a hard reset
7111 mask
= readl(ioa_cfg
->regs
.sense_interrupt_mask_reg
);
7112 uproc
= readl(ioa_cfg
->regs
.sense_uproc_interrupt_reg
);
7113 if ((mask
& IPR_PCII_HRRQ_UPDATED
) == 0 || (uproc
& IPR_UPROCI_RESET_ALERT
))
7114 ioa_cfg
->needs_hard_reset
= 1;
7116 ipr_mask_and_clear_interrupts(ioa_cfg
, ~IPR_PCII_IOA_TRANS_TO_OPER
);
7117 rc
= request_irq(pdev
->irq
, ipr_isr
, IRQF_SHARED
, IPR_NAME
, ioa_cfg
);
7120 dev_err(&pdev
->dev
, "Couldn't register IRQ %d! rc=%d\n",
7125 spin_lock(&ipr_driver_lock
);
7126 list_add_tail(&ioa_cfg
->queue
, &ipr_ioa_head
);
7127 spin_unlock(&ipr_driver_lock
);
7134 ipr_free_mem(ioa_cfg
);
7137 out_release_regions
:
7138 pci_release_regions(pdev
);
7140 scsi_host_put(host
);
7142 pci_disable_device(pdev
);
7147 * ipr_scan_vsets - Scans for VSET devices
7148 * @ioa_cfg: ioa config struct
7150 * Description: Since the VSET resources do not follow SAM in that we can have
7151 * sparse LUNs with no LUN 0, we have to scan for these ourselves.
7156 static void ipr_scan_vsets(struct ipr_ioa_cfg
*ioa_cfg
)
7160 for (target
= 0; target
< IPR_MAX_NUM_TARGETS_PER_BUS
; target
++)
7161 for (lun
= 0; lun
< IPR_MAX_NUM_VSET_LUNS_PER_TARGET
; lun
++ )
7162 scsi_add_device(ioa_cfg
->host
, IPR_VSET_BUS
, target
, lun
);
7166 * ipr_initiate_ioa_bringdown - Bring down an adapter
7167 * @ioa_cfg: ioa config struct
7168 * @shutdown_type: shutdown type
7170 * Description: This function will initiate bringing down the adapter.
7171 * This consists of issuing an IOA shutdown to the adapter
7172 * to flush the cache, and running BIST.
7173 * If the caller needs to wait on the completion of the reset,
7174 * the caller must sleep on the reset_wait_q.
7179 static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg
*ioa_cfg
,
7180 enum ipr_shutdown_type shutdown_type
)
7183 if (ioa_cfg
->sdt_state
== WAIT_FOR_DUMP
)
7184 ioa_cfg
->sdt_state
= ABORT_DUMP
;
7185 ioa_cfg
->reset_retries
= 0;
7186 ioa_cfg
->in_ioa_bringdown
= 1;
7187 ipr_initiate_ioa_reset(ioa_cfg
, shutdown_type
);
7192 * __ipr_remove - Remove a single adapter
7193 * @pdev: pci device struct
7195 * Adapter hot plug remove entry point.
7200 static void __ipr_remove(struct pci_dev
*pdev
)
7202 unsigned long host_lock_flags
= 0;
7203 struct ipr_ioa_cfg
*ioa_cfg
= pci_get_drvdata(pdev
);
7206 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, host_lock_flags
);
7207 ipr_initiate_ioa_bringdown(ioa_cfg
, IPR_SHUTDOWN_NORMAL
);
7209 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, host_lock_flags
);
7210 wait_event(ioa_cfg
->reset_wait_q
, !ioa_cfg
->in_reset_reload
);
7211 flush_scheduled_work();
7212 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, host_lock_flags
);
7214 spin_lock(&ipr_driver_lock
);
7215 list_del(&ioa_cfg
->queue
);
7216 spin_unlock(&ipr_driver_lock
);
7218 if (ioa_cfg
->sdt_state
== ABORT_DUMP
)
7219 ioa_cfg
->sdt_state
= WAIT_FOR_DUMP
;
7220 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, host_lock_flags
);
7222 ipr_free_all_resources(ioa_cfg
);
7228 * ipr_remove - IOA hot plug remove entry point
7229 * @pdev: pci device struct
7231 * Adapter hot plug remove entry point.
7236 static void ipr_remove(struct pci_dev
*pdev
)
7238 struct ipr_ioa_cfg
*ioa_cfg
= pci_get_drvdata(pdev
);
7242 ipr_remove_trace_file(&ioa_cfg
->host
->shost_classdev
.kobj
,
7244 ipr_remove_dump_file(&ioa_cfg
->host
->shost_classdev
.kobj
,
7246 scsi_remove_host(ioa_cfg
->host
);
7254 * ipr_probe - Adapter hot plug add entry point
7257 * 0 on success / non-zero on failure
7259 static int __devinit
ipr_probe(struct pci_dev
*pdev
,
7260 const struct pci_device_id
*dev_id
)
7262 struct ipr_ioa_cfg
*ioa_cfg
;
7265 rc
= ipr_probe_ioa(pdev
, dev_id
);
7270 ioa_cfg
= pci_get_drvdata(pdev
);
7271 rc
= ipr_probe_ioa_part2(ioa_cfg
);
7278 rc
= scsi_add_host(ioa_cfg
->host
, &pdev
->dev
);
7285 rc
= ipr_create_trace_file(&ioa_cfg
->host
->shost_classdev
.kobj
,
7289 scsi_remove_host(ioa_cfg
->host
);
7294 rc
= ipr_create_dump_file(&ioa_cfg
->host
->shost_classdev
.kobj
,
7298 ipr_remove_trace_file(&ioa_cfg
->host
->shost_classdev
.kobj
,
7300 scsi_remove_host(ioa_cfg
->host
);
7305 scsi_scan_host(ioa_cfg
->host
);
7306 ipr_scan_vsets(ioa_cfg
);
7307 scsi_add_device(ioa_cfg
->host
, IPR_IOA_BUS
, IPR_IOA_TARGET
, IPR_IOA_LUN
);
7308 ioa_cfg
->allow_ml_add_del
= 1;
7309 ioa_cfg
->host
->max_channel
= IPR_VSET_BUS
;
7310 schedule_work(&ioa_cfg
->work_q
);
7315 * ipr_shutdown - Shutdown handler.
7316 * @pdev: pci device struct
7318 * This function is invoked upon system shutdown/reboot. It will issue
7319 * an adapter shutdown to the adapter to flush the write cache.
7324 static void ipr_shutdown(struct pci_dev
*pdev
)
7326 struct ipr_ioa_cfg
*ioa_cfg
= pci_get_drvdata(pdev
);
7327 unsigned long lock_flags
= 0;
7329 spin_lock_irqsave(ioa_cfg
->host
->host_lock
, lock_flags
);
7330 ipr_initiate_ioa_bringdown(ioa_cfg
, IPR_SHUTDOWN_NORMAL
);
7331 spin_unlock_irqrestore(ioa_cfg
->host
->host_lock
, lock_flags
);
7332 wait_event(ioa_cfg
->reset_wait_q
, !ioa_cfg
->in_reset_reload
);
7335 static struct pci_device_id ipr_pci_table
[] __devinitdata
= {
7336 { PCI_VENDOR_ID_MYLEX
, PCI_DEVICE_ID_IBM_GEMSTONE
,
7337 PCI_VENDOR_ID_IBM
, IPR_SUBS_DEV_ID_5702
,
7338 0, 0, (kernel_ulong_t
)&ipr_chip_cfg
[0] },
7339 { PCI_VENDOR_ID_MYLEX
, PCI_DEVICE_ID_IBM_GEMSTONE
,
7340 PCI_VENDOR_ID_IBM
, IPR_SUBS_DEV_ID_5703
,
7341 0, 0, (kernel_ulong_t
)&ipr_chip_cfg
[0] },
7342 { PCI_VENDOR_ID_MYLEX
, PCI_DEVICE_ID_IBM_GEMSTONE
,
7343 PCI_VENDOR_ID_IBM
, IPR_SUBS_DEV_ID_573D
,
7344 0, 0, (kernel_ulong_t
)&ipr_chip_cfg
[0] },
7345 { PCI_VENDOR_ID_MYLEX
, PCI_DEVICE_ID_IBM_GEMSTONE
,
7346 PCI_VENDOR_ID_IBM
, IPR_SUBS_DEV_ID_573E
,
7347 0, 0, (kernel_ulong_t
)&ipr_chip_cfg
[0] },
7348 { PCI_VENDOR_ID_IBM
, PCI_DEVICE_ID_IBM_CITRINE
,
7349 PCI_VENDOR_ID_IBM
, IPR_SUBS_DEV_ID_571B
,
7350 0, 0, (kernel_ulong_t
)&ipr_chip_cfg
[0] },
7351 { PCI_VENDOR_ID_IBM
, PCI_DEVICE_ID_IBM_CITRINE
,
7352 PCI_VENDOR_ID_IBM
, IPR_SUBS_DEV_ID_572E
,
7353 0, 0, (kernel_ulong_t
)&ipr_chip_cfg
[0] },
7354 { PCI_VENDOR_ID_IBM
, PCI_DEVICE_ID_IBM_CITRINE
,
7355 PCI_VENDOR_ID_IBM
, IPR_SUBS_DEV_ID_571A
,
7356 0, 0, (kernel_ulong_t
)&ipr_chip_cfg
[0] },
7357 { PCI_VENDOR_ID_IBM
, PCI_DEVICE_ID_IBM_CITRINE
,
7358 PCI_VENDOR_ID_IBM
, IPR_SUBS_DEV_ID_575B
,
7359 0, 0, (kernel_ulong_t
)&ipr_chip_cfg
[0] },
7360 { PCI_VENDOR_ID_ADAPTEC2
, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN
,
7361 PCI_VENDOR_ID_IBM
, IPR_SUBS_DEV_ID_572A
,
7362 0, 0, (kernel_ulong_t
)&ipr_chip_cfg
[0] },
7363 { PCI_VENDOR_ID_ADAPTEC2
, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN
,
7364 PCI_VENDOR_ID_IBM
, IPR_SUBS_DEV_ID_572B
,
7365 0, 0, (kernel_ulong_t
)&ipr_chip_cfg
[0] },
7366 { PCI_VENDOR_ID_IBM
, PCI_DEVICE_ID_IBM_OBSIDIAN
,
7367 PCI_VENDOR_ID_IBM
, IPR_SUBS_DEV_ID_572A
,
7368 0, 0, (kernel_ulong_t
)&ipr_chip_cfg
[0] },
7369 { PCI_VENDOR_ID_IBM
, PCI_DEVICE_ID_IBM_OBSIDIAN
,
7370 PCI_VENDOR_ID_IBM
, IPR_SUBS_DEV_ID_572B
,
7371 0, 0, (kernel_ulong_t
)&ipr_chip_cfg
[0] },
7372 { PCI_VENDOR_ID_IBM
, PCI_DEVICE_ID_IBM_SNIPE
,
7373 PCI_VENDOR_ID_IBM
, IPR_SUBS_DEV_ID_2780
,
7374 0, 0, (kernel_ulong_t
)&ipr_chip_cfg
[1] },
7375 { PCI_VENDOR_ID_ADAPTEC2
, PCI_DEVICE_ID_ADAPTEC2_SCAMP
,
7376 PCI_VENDOR_ID_IBM
, IPR_SUBS_DEV_ID_571E
,
7377 0, 0, (kernel_ulong_t
)&ipr_chip_cfg
[1] },
7378 { PCI_VENDOR_ID_ADAPTEC2
, PCI_DEVICE_ID_ADAPTEC2_SCAMP
,
7379 PCI_VENDOR_ID_IBM
, IPR_SUBS_DEV_ID_571F
,
7380 0, 0, (kernel_ulong_t
)&ipr_chip_cfg
[1] },
7383 MODULE_DEVICE_TABLE(pci
, ipr_pci_table
);
7385 static struct pci_error_handlers ipr_err_handler
= {
7386 .error_detected
= ipr_pci_error_detected
,
7387 .slot_reset
= ipr_pci_slot_reset
,
7390 static struct pci_driver ipr_driver
= {
7392 .id_table
= ipr_pci_table
,
7394 .remove
= ipr_remove
,
7395 .shutdown
= ipr_shutdown
,
7396 .err_handler
= &ipr_err_handler
,
7400 * ipr_init - Module entry point
7403 * 0 on success / negative value on failure
7405 static int __init
ipr_init(void)
7407 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n",
7408 IPR_DRIVER_VERSION
, IPR_DRIVER_DATE
);
7410 return pci_register_driver(&ipr_driver
);
7414 * ipr_exit - Module unload
7416 * Module unload entry point.
7421 static void __exit
ipr_exit(void)
7423 pci_unregister_driver(&ipr_driver
);
7426 module_init(ipr_init
);
7427 module_exit(ipr_exit
);