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>
87 static LIST_HEAD(ipr_ioa_head);
88 static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL;
89 static unsigned int ipr_max_speed = 1;
90 static int ipr_testmode = 0;
91 static unsigned int ipr_fastfail = 0;
92 static unsigned int ipr_transop_timeout = 0;
93 static unsigned int ipr_enable_cache = 1;
94 static unsigned int ipr_debug = 0;
95 static unsigned int ipr_dual_ioa_raid = 1;
96 static DEFINE_SPINLOCK(ipr_driver_lock);
98 /* This table describes the differences between DMA controller chips */
99 static const struct ipr_chip_cfg_t ipr_chip_cfg[] = {
100 { /* Gemstone, Citrine, Obsidian, and Obsidian-E */
102 .cache_line_size = 0x20,
104 .set_interrupt_mask_reg = 0x0022C,
105 .clr_interrupt_mask_reg = 0x00230,
106 .sense_interrupt_mask_reg = 0x0022C,
107 .clr_interrupt_reg = 0x00228,
108 .sense_interrupt_reg = 0x00224,
109 .ioarrin_reg = 0x00404,
110 .sense_uproc_interrupt_reg = 0x00214,
111 .set_uproc_interrupt_reg = 0x00214,
112 .clr_uproc_interrupt_reg = 0x00218
115 { /* Snipe and Scamp */
117 .cache_line_size = 0x20,
119 .set_interrupt_mask_reg = 0x00288,
120 .clr_interrupt_mask_reg = 0x0028C,
121 .sense_interrupt_mask_reg = 0x00288,
122 .clr_interrupt_reg = 0x00284,
123 .sense_interrupt_reg = 0x00280,
124 .ioarrin_reg = 0x00504,
125 .sense_uproc_interrupt_reg = 0x00290,
126 .set_uproc_interrupt_reg = 0x00290,
127 .clr_uproc_interrupt_reg = 0x00294
132 static const struct ipr_chip_t ipr_chip[] = {
133 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, &ipr_chip_cfg[0] },
134 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, &ipr_chip_cfg[0] },
135 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, &ipr_chip_cfg[0] },
136 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, &ipr_chip_cfg[0] },
137 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, &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(dual_ioa_raid, ipr_dual_ioa_raid, int, 0);
163 MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (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[] = {
170 {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL,
171 "8155: An unknown error was received"},
173 "Soft underlength error"},
175 "Command to be cancelled not found"},
177 "Qualified success"},
178 {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL,
179 "FFFE: Soft device bus error recovered by the IOA"},
180 {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL,
181 "4101: Soft device bus fabric error"},
182 {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL,
183 "FFF9: Device sector reassign successful"},
184 {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL,
185 "FFF7: Media error recovered by device rewrite procedures"},
186 {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL,
187 "7001: IOA sector reassignment successful"},
188 {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL,
189 "FFF9: Soft media error. Sector reassignment recommended"},
190 {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL,
191 "FFF7: Media error recovered by IOA rewrite procedures"},
192 {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL,
193 "FF3D: Soft PCI bus error recovered by the IOA"},
194 {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL,
195 "FFF6: Device hardware error recovered by the IOA"},
196 {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL,
197 "FFF6: Device hardware error recovered by the device"},
198 {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL,
199 "FF3D: Soft IOA error recovered by the IOA"},
200 {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL,
201 "FFFA: Undefined device response recovered by the IOA"},
202 {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL,
203 "FFF6: Device bus error, message or command phase"},
204 {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL,
205 "FFFE: Task Management Function failed"},
206 {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL,
207 "FFF6: Failure prediction threshold exceeded"},
208 {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL,
209 "8009: Impending cache battery pack failure"},
211 "34FF: Disk device format in progress"},
212 {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL,
213 "9070: IOA requested reset"},
215 "Synchronization required"},
217 "No ready, IOA shutdown"},
219 "Not ready, IOA has been shutdown"},
220 {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL,
221 "3020: Storage subsystem configuration error"},
223 "FFF5: Medium error, data unreadable, recommend reassign"},
225 "7000: Medium error, data unreadable, do not reassign"},
226 {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL,
227 "FFF3: Disk media format bad"},
228 {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL,
229 "3002: Addressed device failed to respond to selection"},
230 {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL,
231 "3100: Device bus error"},
232 {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL,
233 "3109: IOA timed out a device command"},
235 "3120: SCSI bus is not operational"},
236 {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL,
237 "4100: Hard device bus fabric error"},
238 {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL,
239 "9000: IOA reserved area data check"},
240 {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL,
241 "9001: IOA reserved area invalid data pattern"},
242 {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL,
243 "9002: IOA reserved area LRC error"},
244 {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL,
245 "102E: Out of alternate sectors for disk storage"},
246 {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL,
247 "FFF4: Data transfer underlength error"},
248 {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL,
249 "FFF4: Data transfer overlength error"},
250 {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL,
251 "3400: Logical unit failure"},
252 {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL,
253 "FFF4: Device microcode is corrupt"},
254 {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL,
255 "8150: PCI bus error"},
257 "Unsupported device bus message received"},
258 {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL,
259 "FFF4: Disk device problem"},
260 {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL,
261 "8150: Permanent IOA failure"},
262 {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL,
263 "3010: Disk device returned wrong response to IOA"},
264 {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL,
265 "8151: IOA microcode error"},
267 "Device bus status error"},
268 {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL,
269 "8157: IOA error requiring IOA reset to recover"},
271 "ATA device status error"},
273 "Message reject received from the device"},
274 {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL,
275 "8008: A permanent cache battery pack failure occurred"},
276 {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL,
277 "9090: Disk unit has been modified after the last known status"},
278 {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL,
279 "9081: IOA detected device error"},
280 {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL,
281 "9082: IOA detected device error"},
282 {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL,
283 "3110: Device bus error, message or command phase"},
284 {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL,
285 "3110: SAS Command / Task Management Function failed"},
286 {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL,
287 "9091: Incorrect hardware configuration change has been detected"},
288 {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL,
289 "9073: Invalid multi-adapter configuration"},
290 {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL,
291 "4010: Incorrect connection between cascaded expanders"},
292 {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL,
293 "4020: Connections exceed IOA design limits"},
294 {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL,
295 "4030: Incorrect multipath connection"},
296 {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL,
297 "4110: Unsupported enclosure function"},
298 {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL,
299 "FFF4: Command to logical unit failed"},
301 "Illegal request, invalid request type or request packet"},
303 "Illegal request, invalid resource handle"},
305 "Illegal request, commands not allowed to this device"},
307 "Illegal request, command not allowed to a secondary adapter"},
309 "Illegal request, invalid field in parameter list"},
311 "Illegal request, parameter not supported"},
313 "Illegal request, parameter value invalid"},
315 "Illegal request, command sequence error"},
317 "Illegal request, dual adapter support not enabled"},
318 {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL,
319 "9031: Array protection temporarily suspended, protection resuming"},
320 {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL,
321 "9040: Array protection temporarily suspended, protection resuming"},
322 {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL,
323 "3140: Device bus not ready to ready transition"},
324 {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL,
325 "FFFB: SCSI bus was reset"},
327 "FFFE: SCSI bus transition to single ended"},
329 "FFFE: SCSI bus transition to LVD"},
330 {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL,
331 "FFFB: SCSI bus was reset by another initiator"},
332 {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL,
333 "3029: A device replacement has occurred"},
334 {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL,
335 "9051: IOA cache data exists for a missing or failed device"},
336 {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL,
337 "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"},
338 {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL,
339 "9025: Disk unit is not supported at its physical location"},
340 {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL,
341 "3020: IOA detected a SCSI bus configuration error"},
342 {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL,
343 "3150: SCSI bus configuration error"},
344 {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL,
345 "9074: Asymmetric advanced function disk configuration"},
346 {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL,
347 "4040: Incomplete multipath connection between IOA and enclosure"},
348 {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL,
349 "4041: Incomplete multipath connection between enclosure and device"},
350 {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL,
351 "9075: Incomplete multipath connection between IOA and remote IOA"},
352 {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL,
353 "9076: Configuration error, missing remote IOA"},
354 {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL,
355 "4050: Enclosure does not support a required multipath function"},
356 {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL,
357 "9041: Array protection temporarily suspended"},
358 {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL,
359 "9042: Corrupt array parity detected on specified device"},
360 {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL,
361 "9030: Array no longer protected due to missing or failed disk unit"},
362 {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL,
363 "9071: Link operational transition"},
364 {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL,
365 "9072: Link not operational transition"},
366 {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL,
367 "9032: Array exposed but still protected"},
368 {0x066B8300, 0, IPR_DEFAULT_LOG_LEVEL + 1,
369 "70DD: Device forced failed by disrupt device command"},
370 {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL,
371 "4061: Multipath redundancy level got better"},
372 {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL,
373 "4060: Multipath redundancy level got worse"},
375 "Failure due to other device"},
376 {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL,
377 "9008: IOA does not support functions expected by devices"},
378 {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL,
379 "9010: Cache data associated with attached devices cannot be found"},
380 {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL,
381 "9011: Cache data belongs to devices other than those attached"},
382 {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL,
383 "9020: Array missing 2 or more devices with only 1 device present"},
384 {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL,
385 "9021: Array missing 2 or more devices with 2 or more devices present"},
386 {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL,
387 "9022: Exposed array is missing a required device"},
388 {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL,
389 "9023: Array member(s) not at required physical locations"},
390 {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL,
391 "9024: Array not functional due to present hardware configuration"},
392 {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL,
393 "9026: Array not functional due to present hardware configuration"},
394 {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL,
395 "9027: Array is missing a device and parity is out of sync"},
396 {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL,
397 "9028: Maximum number of arrays already exist"},
398 {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL,
399 "9050: Required cache data cannot be located for a disk unit"},
400 {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL,
401 "9052: Cache data exists for a device that has been modified"},
402 {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL,
403 "9054: IOA resources not available due to previous problems"},
404 {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL,
405 "9092: Disk unit requires initialization before use"},
406 {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL,
407 "9029: Incorrect hardware configuration change has been detected"},
408 {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL,
409 "9060: One or more disk pairs are missing from an array"},
410 {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL,
411 "9061: One or more disks are missing from an array"},
412 {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL,
413 "9062: One or more disks are missing from an array"},
414 {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL,
415 "9063: Maximum number of functional arrays has been exceeded"},
417 "Aborted command, invalid descriptor"},
419 "Command terminated by host"}
422 static const struct ipr_ses_table_entry ipr_ses_table[] = {
423 { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 },
424 { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 },
425 { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */
426 { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */
427 { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */
428 { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */
429 { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 },
430 { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 },
431 { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
432 { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
433 { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 },
434 { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 },
435 { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 }
439 * Function Prototypes
441 static int ipr_reset_alert(struct ipr_cmnd *);
442 static void ipr_process_ccn(struct ipr_cmnd *);
443 static void ipr_process_error(struct ipr_cmnd *);
444 static void ipr_reset_ioa_job(struct ipr_cmnd *);
445 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *,
446 enum ipr_shutdown_type);
448 #ifdef CONFIG_SCSI_IPR_TRACE
450 * ipr_trc_hook - Add a trace entry to the driver trace
451 * @ipr_cmd: ipr command struct
453 * @add_data: additional data
458 static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd,
459 u8 type, u32 add_data)
461 struct ipr_trace_entry *trace_entry;
462 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
464 trace_entry = &ioa_cfg->trace[ioa_cfg->trace_index++];
465 trace_entry->time = jiffies;
466 trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0];
467 trace_entry->type = type;
468 trace_entry->ata_op_code = ipr_cmd->ioarcb.add_data.u.regs.command;
469 trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff;
470 trace_entry->res_handle = ipr_cmd->ioarcb.res_handle;
471 trace_entry->u.add_data = add_data;
474 #define ipr_trc_hook(ipr_cmd, type, add_data) do { } while(0)
478 * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse
479 * @ipr_cmd: ipr command struct
484 static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
486 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
487 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
488 dma_addr_t dma_addr = be32_to_cpu(ioarcb->ioarcb_host_pci_addr);
490 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
491 ioarcb->write_data_transfer_length = 0;
492 ioarcb->read_data_transfer_length = 0;
493 ioarcb->write_ioadl_len = 0;
494 ioarcb->read_ioadl_len = 0;
495 ioarcb->write_ioadl_addr =
496 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioadl));
497 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
499 ioasa->residual_data_len = 0;
500 ioasa->u.gata.status = 0;
502 ipr_cmd->scsi_cmd = NULL;
504 ipr_cmd->sense_buffer[0] = 0;
505 ipr_cmd->dma_use_sg = 0;
509 * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block
510 * @ipr_cmd: ipr command struct
515 static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
517 ipr_reinit_ipr_cmnd(ipr_cmd);
518 ipr_cmd->u.scratch = 0;
519 ipr_cmd->sibling = NULL;
520 init_timer(&ipr_cmd->timer);
524 * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block
525 * @ioa_cfg: ioa config struct
528 * pointer to ipr command struct
531 struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg)
533 struct ipr_cmnd *ipr_cmd;
535 ipr_cmd = list_entry(ioa_cfg->free_q.next, struct ipr_cmnd, queue);
536 list_del(&ipr_cmd->queue);
537 ipr_init_ipr_cmnd(ipr_cmd);
543 * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts
544 * @ioa_cfg: ioa config struct
545 * @clr_ints: interrupts to clear
547 * This function masks all interrupts on the adapter, then clears the
548 * interrupts specified in the mask
553 static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg,
556 volatile u32 int_reg;
558 /* Stop new interrupts */
559 ioa_cfg->allow_interrupts = 0;
561 /* Set interrupt mask to stop all new interrupts */
562 writel(~0, ioa_cfg->regs.set_interrupt_mask_reg);
564 /* Clear any pending interrupts */
565 writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg);
566 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
570 * ipr_save_pcix_cmd_reg - Save PCI-X command register
571 * @ioa_cfg: ioa config struct
574 * 0 on success / -EIO on failure
576 static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
578 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
580 if (pcix_cmd_reg == 0)
583 if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
584 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
585 dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n");
589 ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO;
594 * ipr_set_pcix_cmd_reg - Setup PCI-X command register
595 * @ioa_cfg: ioa config struct
598 * 0 on success / -EIO on failure
600 static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
602 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
605 if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
606 ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
607 dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n");
616 * ipr_sata_eh_done - done function for aborted SATA commands
617 * @ipr_cmd: ipr command struct
619 * This function is invoked for ops generated to SATA
620 * devices which are being aborted.
625 static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd)
627 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
628 struct ata_queued_cmd *qc = ipr_cmd->qc;
629 struct ipr_sata_port *sata_port = qc->ap->private_data;
631 qc->err_mask |= AC_ERR_OTHER;
632 sata_port->ioasa.status |= ATA_BUSY;
633 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
638 * ipr_scsi_eh_done - mid-layer done function for aborted ops
639 * @ipr_cmd: ipr command struct
641 * This function is invoked by the interrupt handler for
642 * ops generated by the SCSI mid-layer which are being aborted.
647 static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd)
649 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
650 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
652 scsi_cmd->result |= (DID_ERROR << 16);
654 scsi_dma_unmap(ipr_cmd->scsi_cmd);
655 scsi_cmd->scsi_done(scsi_cmd);
656 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
660 * ipr_fail_all_ops - Fails all outstanding ops.
661 * @ioa_cfg: ioa config struct
663 * This function fails all outstanding ops.
668 static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg)
670 struct ipr_cmnd *ipr_cmd, *temp;
673 list_for_each_entry_safe(ipr_cmd, temp, &ioa_cfg->pending_q, queue) {
674 list_del(&ipr_cmd->queue);
676 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_IOA_WAS_RESET);
677 ipr_cmd->ioasa.ilid = cpu_to_be32(IPR_DRIVER_ILID);
679 if (ipr_cmd->scsi_cmd)
680 ipr_cmd->done = ipr_scsi_eh_done;
681 else if (ipr_cmd->qc)
682 ipr_cmd->done = ipr_sata_eh_done;
684 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, IPR_IOASC_IOA_WAS_RESET);
685 del_timer(&ipr_cmd->timer);
686 ipr_cmd->done(ipr_cmd);
693 * ipr_do_req - Send driver initiated requests.
694 * @ipr_cmd: ipr command struct
695 * @done: done function
696 * @timeout_func: timeout function
697 * @timeout: timeout value
699 * This function sends the specified command to the adapter with the
700 * timeout given. The done function is invoked on command completion.
705 static void ipr_do_req(struct ipr_cmnd *ipr_cmd,
706 void (*done) (struct ipr_cmnd *),
707 void (*timeout_func) (struct ipr_cmnd *), u32 timeout)
709 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
711 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
713 ipr_cmd->done = done;
715 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
716 ipr_cmd->timer.expires = jiffies + timeout;
717 ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func;
719 add_timer(&ipr_cmd->timer);
721 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0);
724 writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr),
725 ioa_cfg->regs.ioarrin_reg);
729 * ipr_internal_cmd_done - Op done function for an internally generated op.
730 * @ipr_cmd: ipr command struct
732 * This function is the op done function for an internally generated,
733 * blocking op. It simply wakes the sleeping thread.
738 static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd)
740 if (ipr_cmd->sibling)
741 ipr_cmd->sibling = NULL;
743 complete(&ipr_cmd->completion);
747 * ipr_send_blocking_cmd - Send command and sleep on its completion.
748 * @ipr_cmd: ipr command struct
749 * @timeout_func: function to invoke if command times out
755 static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd,
756 void (*timeout_func) (struct ipr_cmnd *ipr_cmd),
759 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
761 init_completion(&ipr_cmd->completion);
762 ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout);
764 spin_unlock_irq(ioa_cfg->host->host_lock);
765 wait_for_completion(&ipr_cmd->completion);
766 spin_lock_irq(ioa_cfg->host->host_lock);
770 * ipr_send_hcam - Send an HCAM to the adapter.
771 * @ioa_cfg: ioa config struct
773 * @hostrcb: hostrcb struct
775 * This function will send a Host Controlled Async command to the adapter.
776 * If HCAMs are currently not allowed to be issued to the adapter, it will
777 * place the hostrcb on the free queue.
782 static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type,
783 struct ipr_hostrcb *hostrcb)
785 struct ipr_cmnd *ipr_cmd;
786 struct ipr_ioarcb *ioarcb;
788 if (ioa_cfg->allow_cmds) {
789 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
790 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
791 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q);
793 ipr_cmd->u.hostrcb = hostrcb;
794 ioarcb = &ipr_cmd->ioarcb;
796 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
797 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM;
798 ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC;
799 ioarcb->cmd_pkt.cdb[1] = type;
800 ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff;
801 ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff;
803 ioarcb->read_data_transfer_length = cpu_to_be32(sizeof(hostrcb->hcam));
804 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
805 ipr_cmd->ioadl[0].flags_and_data_len =
806 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | sizeof(hostrcb->hcam));
807 ipr_cmd->ioadl[0].address = cpu_to_be32(hostrcb->hostrcb_dma);
809 if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE)
810 ipr_cmd->done = ipr_process_ccn;
812 ipr_cmd->done = ipr_process_error;
814 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR);
817 writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr),
818 ioa_cfg->regs.ioarrin_reg);
820 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
825 * ipr_init_res_entry - Initialize a resource entry struct.
826 * @res: resource entry struct
831 static void ipr_init_res_entry(struct ipr_resource_entry *res)
833 res->needs_sync_complete = 0;
836 res->del_from_ml = 0;
837 res->resetting_device = 0;
839 res->sata_port = NULL;
843 * ipr_handle_config_change - Handle a config change from the adapter
844 * @ioa_cfg: ioa config struct
850 static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg,
851 struct ipr_hostrcb *hostrcb)
853 struct ipr_resource_entry *res = NULL;
854 struct ipr_config_table_entry *cfgte;
857 cfgte = &hostrcb->hcam.u.ccn.cfgte;
859 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
860 if (!memcmp(&res->cfgte.res_addr, &cfgte->res_addr,
861 sizeof(cfgte->res_addr))) {
868 if (list_empty(&ioa_cfg->free_res_q)) {
869 ipr_send_hcam(ioa_cfg,
870 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE,
875 res = list_entry(ioa_cfg->free_res_q.next,
876 struct ipr_resource_entry, queue);
878 list_del(&res->queue);
879 ipr_init_res_entry(res);
880 list_add_tail(&res->queue, &ioa_cfg->used_res_q);
883 memcpy(&res->cfgte, cfgte, sizeof(struct ipr_config_table_entry));
885 if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) {
887 res->del_from_ml = 1;
888 res->cfgte.res_handle = IPR_INVALID_RES_HANDLE;
889 if (ioa_cfg->allow_ml_add_del)
890 schedule_work(&ioa_cfg->work_q);
892 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
893 } else if (!res->sdev) {
895 if (ioa_cfg->allow_ml_add_del)
896 schedule_work(&ioa_cfg->work_q);
899 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
903 * ipr_process_ccn - Op done function for a CCN.
904 * @ipr_cmd: ipr command struct
906 * This function is the op done function for a configuration
907 * change notification host controlled async from the adapter.
912 static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd)
914 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
915 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
916 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
918 list_del(&hostrcb->queue);
919 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
922 if (ioasc != IPR_IOASC_IOA_WAS_RESET)
923 dev_err(&ioa_cfg->pdev->dev,
924 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
926 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
928 ipr_handle_config_change(ioa_cfg, hostrcb);
933 * strip_and_pad_whitespace - Strip and pad trailing whitespace.
934 * @i: index into buffer
935 * @buf: string to modify
937 * This function will strip all trailing whitespace, pad the end
938 * of the string with a single space, and NULL terminate the string.
941 * new length of string
943 static int strip_and_pad_whitespace(int i, char *buf)
945 while (i && buf[i] == ' ')
953 * ipr_log_vpd_compact - Log the passed extended VPD compactly.
954 * @prefix: string to print at start of printk
955 * @hostrcb: hostrcb pointer
956 * @vpd: vendor/product id/sn struct
961 static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
964 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3];
967 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
968 i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer);
970 memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN);
971 i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer);
973 memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN);
974 buffer[IPR_SERIAL_NUM_LEN + i] = '\0';
976 ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer);
980 * ipr_log_vpd - Log the passed VPD to the error log.
981 * @vpd: vendor/product id/sn struct
986 static void ipr_log_vpd(struct ipr_vpd *vpd)
988 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN
989 + IPR_SERIAL_NUM_LEN];
991 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
992 memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id,
994 buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0';
995 ipr_err("Vendor/Product ID: %s\n", buffer);
997 memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN);
998 buffer[IPR_SERIAL_NUM_LEN] = '\0';
999 ipr_err(" Serial Number: %s\n", buffer);
1003 * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly.
1004 * @prefix: string to print at start of printk
1005 * @hostrcb: hostrcb pointer
1006 * @vpd: vendor/product id/sn/wwn struct
1011 static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1012 struct ipr_ext_vpd *vpd)
1014 ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd);
1015 ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix,
1016 be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1]));
1020 * ipr_log_ext_vpd - Log the passed extended VPD to the error log.
1021 * @vpd: vendor/product id/sn/wwn struct
1026 static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd)
1028 ipr_log_vpd(&vpd->vpd);
1029 ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]),
1030 be32_to_cpu(vpd->wwid[1]));
1034 * ipr_log_enhanced_cache_error - Log a cache error.
1035 * @ioa_cfg: ioa config struct
1036 * @hostrcb: hostrcb struct
1041 static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1042 struct ipr_hostrcb *hostrcb)
1044 struct ipr_hostrcb_type_12_error *error =
1045 &hostrcb->hcam.u.error.u.type_12_error;
1047 ipr_err("-----Current Configuration-----\n");
1048 ipr_err("Cache Directory Card Information:\n");
1049 ipr_log_ext_vpd(&error->ioa_vpd);
1050 ipr_err("Adapter Card Information:\n");
1051 ipr_log_ext_vpd(&error->cfc_vpd);
1053 ipr_err("-----Expected Configuration-----\n");
1054 ipr_err("Cache Directory Card Information:\n");
1055 ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd);
1056 ipr_err("Adapter Card Information:\n");
1057 ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd);
1059 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1060 be32_to_cpu(error->ioa_data[0]),
1061 be32_to_cpu(error->ioa_data[1]),
1062 be32_to_cpu(error->ioa_data[2]));
1066 * ipr_log_cache_error - Log a cache error.
1067 * @ioa_cfg: ioa config struct
1068 * @hostrcb: hostrcb struct
1073 static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1074 struct ipr_hostrcb *hostrcb)
1076 struct ipr_hostrcb_type_02_error *error =
1077 &hostrcb->hcam.u.error.u.type_02_error;
1079 ipr_err("-----Current Configuration-----\n");
1080 ipr_err("Cache Directory Card Information:\n");
1081 ipr_log_vpd(&error->ioa_vpd);
1082 ipr_err("Adapter Card Information:\n");
1083 ipr_log_vpd(&error->cfc_vpd);
1085 ipr_err("-----Expected Configuration-----\n");
1086 ipr_err("Cache Directory Card Information:\n");
1087 ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd);
1088 ipr_err("Adapter Card Information:\n");
1089 ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd);
1091 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1092 be32_to_cpu(error->ioa_data[0]),
1093 be32_to_cpu(error->ioa_data[1]),
1094 be32_to_cpu(error->ioa_data[2]));
1098 * ipr_log_enhanced_config_error - Log a configuration error.
1099 * @ioa_cfg: ioa config struct
1100 * @hostrcb: hostrcb struct
1105 static void ipr_log_enhanced_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_enhanced *dev_entry;
1110 struct ipr_hostrcb_type_13_error *error;
1112 error = &hostrcb->hcam.u.error.u.type_13_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_ext_vpd(&dev_entry->vpd);
1126 ipr_err("-----New Device Information-----\n");
1127 ipr_log_ext_vpd(&dev_entry->new_vpd);
1129 ipr_err("Cache Directory Card Information:\n");
1130 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1132 ipr_err("Adapter Card Information:\n");
1133 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1138 * ipr_log_config_error - Log a configuration error.
1139 * @ioa_cfg: ioa config struct
1140 * @hostrcb: hostrcb struct
1145 static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg,
1146 struct ipr_hostrcb *hostrcb)
1148 int errors_logged, i;
1149 struct ipr_hostrcb_device_data_entry *dev_entry;
1150 struct ipr_hostrcb_type_03_error *error;
1152 error = &hostrcb->hcam.u.error.u.type_03_error;
1153 errors_logged = be32_to_cpu(error->errors_logged);
1155 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1156 be32_to_cpu(error->errors_detected), errors_logged);
1158 dev_entry = error->dev;
1160 for (i = 0; i < errors_logged; i++, dev_entry++) {
1163 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1164 ipr_log_vpd(&dev_entry->vpd);
1166 ipr_err("-----New Device Information-----\n");
1167 ipr_log_vpd(&dev_entry->new_vpd);
1169 ipr_err("Cache Directory Card Information:\n");
1170 ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd);
1172 ipr_err("Adapter Card Information:\n");
1173 ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd);
1175 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n",
1176 be32_to_cpu(dev_entry->ioa_data[0]),
1177 be32_to_cpu(dev_entry->ioa_data[1]),
1178 be32_to_cpu(dev_entry->ioa_data[2]),
1179 be32_to_cpu(dev_entry->ioa_data[3]),
1180 be32_to_cpu(dev_entry->ioa_data[4]));
1185 * ipr_log_enhanced_array_error - Log an array configuration error.
1186 * @ioa_cfg: ioa config struct
1187 * @hostrcb: hostrcb struct
1192 static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg,
1193 struct ipr_hostrcb *hostrcb)
1196 struct ipr_hostrcb_type_14_error *error;
1197 struct ipr_hostrcb_array_data_entry_enhanced *array_entry;
1198 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1200 error = &hostrcb->hcam.u.error.u.type_14_error;
1204 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1205 error->protection_level,
1206 ioa_cfg->host->host_no,
1207 error->last_func_vset_res_addr.bus,
1208 error->last_func_vset_res_addr.target,
1209 error->last_func_vset_res_addr.lun);
1213 array_entry = error->array_member;
1214 num_entries = min_t(u32, be32_to_cpu(error->num_entries),
1215 sizeof(error->array_member));
1217 for (i = 0; i < num_entries; i++, array_entry++) {
1218 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1221 if (be32_to_cpu(error->exposed_mode_adn) == i)
1222 ipr_err("Exposed Array Member %d:\n", i);
1224 ipr_err("Array Member %d:\n", i);
1226 ipr_log_ext_vpd(&array_entry->vpd);
1227 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1228 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1229 "Expected Location");
1236 * ipr_log_array_error - Log an array configuration error.
1237 * @ioa_cfg: ioa config struct
1238 * @hostrcb: hostrcb struct
1243 static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg,
1244 struct ipr_hostrcb *hostrcb)
1247 struct ipr_hostrcb_type_04_error *error;
1248 struct ipr_hostrcb_array_data_entry *array_entry;
1249 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1251 error = &hostrcb->hcam.u.error.u.type_04_error;
1255 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1256 error->protection_level,
1257 ioa_cfg->host->host_no,
1258 error->last_func_vset_res_addr.bus,
1259 error->last_func_vset_res_addr.target,
1260 error->last_func_vset_res_addr.lun);
1264 array_entry = error->array_member;
1266 for (i = 0; i < 18; i++) {
1267 if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1270 if (be32_to_cpu(error->exposed_mode_adn) == i)
1271 ipr_err("Exposed Array Member %d:\n", i);
1273 ipr_err("Array Member %d:\n", i);
1275 ipr_log_vpd(&array_entry->vpd);
1277 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1278 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1279 "Expected Location");
1284 array_entry = error->array_member2;
1291 * ipr_log_hex_data - Log additional hex IOA error data.
1292 * @ioa_cfg: ioa config struct
1293 * @data: IOA error data
1299 static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, u32 *data, int len)
1306 if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
1307 len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP);
1309 for (i = 0; i < len / 4; i += 4) {
1310 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
1311 be32_to_cpu(data[i]),
1312 be32_to_cpu(data[i+1]),
1313 be32_to_cpu(data[i+2]),
1314 be32_to_cpu(data[i+3]));
1319 * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error.
1320 * @ioa_cfg: ioa config struct
1321 * @hostrcb: hostrcb struct
1326 static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1327 struct ipr_hostrcb *hostrcb)
1329 struct ipr_hostrcb_type_17_error *error;
1331 error = &hostrcb->hcam.u.error.u.type_17_error;
1332 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
1333 strstrip(error->failure_reason);
1335 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1336 be32_to_cpu(hostrcb->hcam.u.error.prc));
1337 ipr_log_ext_vpd_compact("Remote IOA", hostrcb, &error->vpd);
1338 ipr_log_hex_data(ioa_cfg, error->data,
1339 be32_to_cpu(hostrcb->hcam.length) -
1340 (offsetof(struct ipr_hostrcb_error, u) +
1341 offsetof(struct ipr_hostrcb_type_17_error, data)));
1345 * ipr_log_dual_ioa_error - Log a dual adapter error.
1346 * @ioa_cfg: ioa config struct
1347 * @hostrcb: hostrcb struct
1352 static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1353 struct ipr_hostrcb *hostrcb)
1355 struct ipr_hostrcb_type_07_error *error;
1357 error = &hostrcb->hcam.u.error.u.type_07_error;
1358 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
1359 strstrip(error->failure_reason);
1361 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1362 be32_to_cpu(hostrcb->hcam.u.error.prc));
1363 ipr_log_vpd_compact("Remote IOA", hostrcb, &error->vpd);
1364 ipr_log_hex_data(ioa_cfg, error->data,
1365 be32_to_cpu(hostrcb->hcam.length) -
1366 (offsetof(struct ipr_hostrcb_error, u) +
1367 offsetof(struct ipr_hostrcb_type_07_error, data)));
1370 static const struct {
1373 } path_active_desc[] = {
1374 { IPR_PATH_NO_INFO, "Path" },
1375 { IPR_PATH_ACTIVE, "Active path" },
1376 { IPR_PATH_NOT_ACTIVE, "Inactive path" }
1379 static const struct {
1382 } path_state_desc[] = {
1383 { IPR_PATH_STATE_NO_INFO, "has no path state information available" },
1384 { IPR_PATH_HEALTHY, "is healthy" },
1385 { IPR_PATH_DEGRADED, "is degraded" },
1386 { IPR_PATH_FAILED, "is failed" }
1390 * ipr_log_fabric_path - Log a fabric path error
1391 * @hostrcb: hostrcb struct
1392 * @fabric: fabric descriptor
1397 static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb,
1398 struct ipr_hostrcb_fabric_desc *fabric)
1401 u8 path_state = fabric->path_state;
1402 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
1403 u8 state = path_state & IPR_PATH_STATE_MASK;
1405 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
1406 if (path_active_desc[i].active != active)
1409 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
1410 if (path_state_desc[j].state != state)
1413 if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) {
1414 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n",
1415 path_active_desc[i].desc, path_state_desc[j].desc,
1417 } else if (fabric->cascaded_expander == 0xff) {
1418 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n",
1419 path_active_desc[i].desc, path_state_desc[j].desc,
1420 fabric->ioa_port, fabric->phy);
1421 } else if (fabric->phy == 0xff) {
1422 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n",
1423 path_active_desc[i].desc, path_state_desc[j].desc,
1424 fabric->ioa_port, fabric->cascaded_expander);
1426 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n",
1427 path_active_desc[i].desc, path_state_desc[j].desc,
1428 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
1434 ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state,
1435 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
1438 static const struct {
1441 } path_type_desc[] = {
1442 { IPR_PATH_CFG_IOA_PORT, "IOA port" },
1443 { IPR_PATH_CFG_EXP_PORT, "Expander port" },
1444 { IPR_PATH_CFG_DEVICE_PORT, "Device port" },
1445 { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" }
1448 static const struct {
1451 } path_status_desc[] = {
1452 { IPR_PATH_CFG_NO_PROB, "Functional" },
1453 { IPR_PATH_CFG_DEGRADED, "Degraded" },
1454 { IPR_PATH_CFG_FAILED, "Failed" },
1455 { IPR_PATH_CFG_SUSPECT, "Suspect" },
1456 { IPR_PATH_NOT_DETECTED, "Missing" },
1457 { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" }
1460 static const char *link_rate[] = {
1463 "phy reset problem",
1480 * ipr_log_path_elem - Log a fabric path element.
1481 * @hostrcb: hostrcb struct
1482 * @cfg: fabric path element struct
1487 static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb,
1488 struct ipr_hostrcb_config_element *cfg)
1491 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
1492 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
1494 if (type == IPR_PATH_CFG_NOT_EXIST)
1497 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
1498 if (path_type_desc[i].type != type)
1501 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
1502 if (path_status_desc[j].status != status)
1505 if (type == IPR_PATH_CFG_IOA_PORT) {
1506 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n",
1507 path_status_desc[j].desc, path_type_desc[i].desc,
1508 cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
1509 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
1511 if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) {
1512 ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n",
1513 path_status_desc[j].desc, path_type_desc[i].desc,
1514 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
1515 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
1516 } else if (cfg->cascaded_expander == 0xff) {
1517 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, "
1518 "WWN=%08X%08X\n", path_status_desc[j].desc,
1519 path_type_desc[i].desc, cfg->phy,
1520 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
1521 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
1522 } else if (cfg->phy == 0xff) {
1523 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, "
1524 "WWN=%08X%08X\n", path_status_desc[j].desc,
1525 path_type_desc[i].desc, cfg->cascaded_expander,
1526 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
1527 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
1529 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s "
1530 "WWN=%08X%08X\n", path_status_desc[j].desc,
1531 path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy,
1532 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
1533 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
1540 ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s "
1541 "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy,
1542 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
1543 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
1547 * ipr_log_fabric_error - Log a fabric error.
1548 * @ioa_cfg: ioa config struct
1549 * @hostrcb: hostrcb struct
1554 static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
1555 struct ipr_hostrcb *hostrcb)
1557 struct ipr_hostrcb_type_20_error *error;
1558 struct ipr_hostrcb_fabric_desc *fabric;
1559 struct ipr_hostrcb_config_element *cfg;
1562 error = &hostrcb->hcam.u.error.u.type_20_error;
1563 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
1564 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
1566 add_len = be32_to_cpu(hostrcb->hcam.length) -
1567 (offsetof(struct ipr_hostrcb_error, u) +
1568 offsetof(struct ipr_hostrcb_type_20_error, desc));
1570 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
1571 ipr_log_fabric_path(hostrcb, fabric);
1572 for_each_fabric_cfg(fabric, cfg)
1573 ipr_log_path_elem(hostrcb, cfg);
1575 add_len -= be16_to_cpu(fabric->length);
1576 fabric = (struct ipr_hostrcb_fabric_desc *)
1577 ((unsigned long)fabric + be16_to_cpu(fabric->length));
1580 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len);
1584 * ipr_log_generic_error - Log an adapter error.
1585 * @ioa_cfg: ioa config struct
1586 * @hostrcb: hostrcb struct
1591 static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg,
1592 struct ipr_hostrcb *hostrcb)
1594 ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data,
1595 be32_to_cpu(hostrcb->hcam.length));
1599 * ipr_get_error - Find the specfied IOASC in the ipr_error_table.
1602 * This function will return the index of into the ipr_error_table
1603 * for the specified IOASC. If the IOASC is not in the table,
1604 * 0 will be returned, which points to the entry used for unknown errors.
1607 * index into the ipr_error_table
1609 static u32 ipr_get_error(u32 ioasc)
1613 for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++)
1614 if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK))
1621 * ipr_handle_log_data - Log an adapter error.
1622 * @ioa_cfg: ioa config struct
1623 * @hostrcb: hostrcb struct
1625 * This function logs an adapter error to the system.
1630 static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg,
1631 struct ipr_hostrcb *hostrcb)
1636 if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY)
1639 if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST)
1640 dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n");
1642 ioasc = be32_to_cpu(hostrcb->hcam.u.error.failing_dev_ioasc);
1644 if (ioasc == IPR_IOASC_BUS_WAS_RESET ||
1645 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER) {
1646 /* Tell the midlayer we had a bus reset so it will handle the UA properly */
1647 scsi_report_bus_reset(ioa_cfg->host,
1648 hostrcb->hcam.u.error.failing_dev_res_addr.bus);
1651 error_index = ipr_get_error(ioasc);
1653 if (!ipr_error_table[error_index].log_hcam)
1656 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error);
1658 /* Set indication we have logged an error */
1659 ioa_cfg->errors_logged++;
1661 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam)
1663 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw))
1664 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw));
1666 switch (hostrcb->hcam.overlay_id) {
1667 case IPR_HOST_RCB_OVERLAY_ID_2:
1668 ipr_log_cache_error(ioa_cfg, hostrcb);
1670 case IPR_HOST_RCB_OVERLAY_ID_3:
1671 ipr_log_config_error(ioa_cfg, hostrcb);
1673 case IPR_HOST_RCB_OVERLAY_ID_4:
1674 case IPR_HOST_RCB_OVERLAY_ID_6:
1675 ipr_log_array_error(ioa_cfg, hostrcb);
1677 case IPR_HOST_RCB_OVERLAY_ID_7:
1678 ipr_log_dual_ioa_error(ioa_cfg, hostrcb);
1680 case IPR_HOST_RCB_OVERLAY_ID_12:
1681 ipr_log_enhanced_cache_error(ioa_cfg, hostrcb);
1683 case IPR_HOST_RCB_OVERLAY_ID_13:
1684 ipr_log_enhanced_config_error(ioa_cfg, hostrcb);
1686 case IPR_HOST_RCB_OVERLAY_ID_14:
1687 case IPR_HOST_RCB_OVERLAY_ID_16:
1688 ipr_log_enhanced_array_error(ioa_cfg, hostrcb);
1690 case IPR_HOST_RCB_OVERLAY_ID_17:
1691 ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb);
1693 case IPR_HOST_RCB_OVERLAY_ID_20:
1694 ipr_log_fabric_error(ioa_cfg, hostrcb);
1696 case IPR_HOST_RCB_OVERLAY_ID_1:
1697 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT:
1699 ipr_log_generic_error(ioa_cfg, hostrcb);
1705 * ipr_process_error - Op done function for an adapter error log.
1706 * @ipr_cmd: ipr command struct
1708 * This function is the op done function for an error log host
1709 * controlled async from the adapter. It will log the error and
1710 * send the HCAM back to the adapter.
1715 static void ipr_process_error(struct ipr_cmnd *ipr_cmd)
1717 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1718 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
1719 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
1720 u32 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.failing_dev_ioasc);
1722 list_del(&hostrcb->queue);
1723 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
1726 ipr_handle_log_data(ioa_cfg, hostrcb);
1727 if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED)
1728 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
1729 } else if (ioasc != IPR_IOASC_IOA_WAS_RESET) {
1730 dev_err(&ioa_cfg->pdev->dev,
1731 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
1734 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
1738 * ipr_timeout - An internally generated op has timed out.
1739 * @ipr_cmd: ipr command struct
1741 * This function blocks host requests and initiates an
1747 static void ipr_timeout(struct ipr_cmnd *ipr_cmd)
1749 unsigned long lock_flags = 0;
1750 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1753 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
1755 ioa_cfg->errors_logged++;
1756 dev_err(&ioa_cfg->pdev->dev,
1757 "Adapter being reset due to command timeout.\n");
1759 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
1760 ioa_cfg->sdt_state = GET_DUMP;
1762 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd)
1763 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
1765 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1770 * ipr_oper_timeout - Adapter timed out transitioning to operational
1771 * @ipr_cmd: ipr command struct
1773 * This function blocks host requests and initiates an
1779 static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd)
1781 unsigned long lock_flags = 0;
1782 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1785 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
1787 ioa_cfg->errors_logged++;
1788 dev_err(&ioa_cfg->pdev->dev,
1789 "Adapter timed out transitioning to operational.\n");
1791 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
1792 ioa_cfg->sdt_state = GET_DUMP;
1794 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) {
1796 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
1797 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
1800 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1805 * ipr_reset_reload - Reset/Reload the IOA
1806 * @ioa_cfg: ioa config struct
1807 * @shutdown_type: shutdown type
1809 * This function resets the adapter and re-initializes it.
1810 * This function assumes that all new host commands have been stopped.
1814 static int ipr_reset_reload(struct ipr_ioa_cfg *ioa_cfg,
1815 enum ipr_shutdown_type shutdown_type)
1817 if (!ioa_cfg->in_reset_reload)
1818 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
1820 spin_unlock_irq(ioa_cfg->host->host_lock);
1821 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
1822 spin_lock_irq(ioa_cfg->host->host_lock);
1824 /* If we got hit with a host reset while we were already resetting
1825 the adapter for some reason, and the reset failed. */
1826 if (ioa_cfg->ioa_is_dead) {
1835 * ipr_find_ses_entry - Find matching SES in SES table
1836 * @res: resource entry struct of SES
1839 * pointer to SES table entry / NULL on failure
1841 static const struct ipr_ses_table_entry *
1842 ipr_find_ses_entry(struct ipr_resource_entry *res)
1845 const struct ipr_ses_table_entry *ste = ipr_ses_table;
1847 for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) {
1848 for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) {
1849 if (ste->compare_product_id_byte[j] == 'X') {
1850 if (res->cfgte.std_inq_data.vpids.product_id[j] == ste->product_id[j])
1858 if (matches == IPR_PROD_ID_LEN)
1866 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus
1867 * @ioa_cfg: ioa config struct
1869 * @bus_width: bus width
1872 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz
1873 * For a 2-byte wide SCSI bus, the maximum transfer speed is
1874 * twice the maximum transfer rate (e.g. for a wide enabled bus,
1875 * max 160MHz = max 320MB/sec).
1877 static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width)
1879 struct ipr_resource_entry *res;
1880 const struct ipr_ses_table_entry *ste;
1881 u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width);
1883 /* Loop through each config table entry in the config table buffer */
1884 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
1885 if (!(IPR_IS_SES_DEVICE(res->cfgte.std_inq_data)))
1888 if (bus != res->cfgte.res_addr.bus)
1891 if (!(ste = ipr_find_ses_entry(res)))
1894 max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8);
1897 return max_xfer_rate;
1901 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA
1902 * @ioa_cfg: ioa config struct
1903 * @max_delay: max delay in micro-seconds to wait
1905 * Waits for an IODEBUG ACK from the IOA, doing busy looping.
1908 * 0 on success / other on failure
1910 static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay)
1912 volatile u32 pcii_reg;
1915 /* Read interrupt reg until IOA signals IO Debug Acknowledge */
1916 while (delay < max_delay) {
1917 pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
1919 if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE)
1922 /* udelay cannot be used if delay is more than a few milliseconds */
1923 if ((delay / 1000) > MAX_UDELAY_MS)
1924 mdelay(delay / 1000);
1934 * ipr_get_ldump_data_section - Dump IOA memory
1935 * @ioa_cfg: ioa config struct
1936 * @start_addr: adapter address to dump
1937 * @dest: destination kernel buffer
1938 * @length_in_words: length to dump in 4 byte words
1941 * 0 on success / -EIO on failure
1943 static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg,
1945 __be32 *dest, u32 length_in_words)
1947 volatile u32 temp_pcii_reg;
1950 /* Write IOA interrupt reg starting LDUMP state */
1951 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT),
1952 ioa_cfg->regs.set_uproc_interrupt_reg);
1954 /* Wait for IO debug acknowledge */
1955 if (ipr_wait_iodbg_ack(ioa_cfg,
1956 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) {
1957 dev_err(&ioa_cfg->pdev->dev,
1958 "IOA dump long data transfer timeout\n");
1962 /* Signal LDUMP interlocked - clear IO debug ack */
1963 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
1964 ioa_cfg->regs.clr_interrupt_reg);
1966 /* Write Mailbox with starting address */
1967 writel(start_addr, ioa_cfg->ioa_mailbox);
1969 /* Signal address valid - clear IOA Reset alert */
1970 writel(IPR_UPROCI_RESET_ALERT,
1971 ioa_cfg->regs.clr_uproc_interrupt_reg);
1973 for (i = 0; i < length_in_words; i++) {
1974 /* Wait for IO debug acknowledge */
1975 if (ipr_wait_iodbg_ack(ioa_cfg,
1976 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) {
1977 dev_err(&ioa_cfg->pdev->dev,
1978 "IOA dump short data transfer timeout\n");
1982 /* Read data from mailbox and increment destination pointer */
1983 *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox));
1986 /* For all but the last word of data, signal data received */
1987 if (i < (length_in_words - 1)) {
1988 /* Signal dump data received - Clear IO debug Ack */
1989 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
1990 ioa_cfg->regs.clr_interrupt_reg);
1994 /* Signal end of block transfer. Set reset alert then clear IO debug ack */
1995 writel(IPR_UPROCI_RESET_ALERT,
1996 ioa_cfg->regs.set_uproc_interrupt_reg);
1998 writel(IPR_UPROCI_IO_DEBUG_ALERT,
1999 ioa_cfg->regs.clr_uproc_interrupt_reg);
2001 /* Signal dump data received - Clear IO debug Ack */
2002 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2003 ioa_cfg->regs.clr_interrupt_reg);
2005 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */
2006 while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) {
2008 readl(ioa_cfg->regs.sense_uproc_interrupt_reg);
2010 if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT))
2020 #ifdef CONFIG_SCSI_IPR_DUMP
2022 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer
2023 * @ioa_cfg: ioa config struct
2024 * @pci_address: adapter address
2025 * @length: length of data to copy
2027 * Copy data from PCI adapter to kernel buffer.
2028 * Note: length MUST be a 4 byte multiple
2030 * 0 on success / other on failure
2032 static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg,
2033 unsigned long pci_address, u32 length)
2035 int bytes_copied = 0;
2036 int cur_len, rc, rem_len, rem_page_len;
2038 unsigned long lock_flags = 0;
2039 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump;
2041 while (bytes_copied < length &&
2042 (ioa_dump->hdr.len + bytes_copied) < IPR_MAX_IOA_DUMP_SIZE) {
2043 if (ioa_dump->page_offset >= PAGE_SIZE ||
2044 ioa_dump->page_offset == 0) {
2045 page = (__be32 *)__get_free_page(GFP_ATOMIC);
2049 return bytes_copied;
2052 ioa_dump->page_offset = 0;
2053 ioa_dump->ioa_data[ioa_dump->next_page_index] = page;
2054 ioa_dump->next_page_index++;
2056 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1];
2058 rem_len = length - bytes_copied;
2059 rem_page_len = PAGE_SIZE - ioa_dump->page_offset;
2060 cur_len = min(rem_len, rem_page_len);
2062 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2063 if (ioa_cfg->sdt_state == ABORT_DUMP) {
2066 rc = ipr_get_ldump_data_section(ioa_cfg,
2067 pci_address + bytes_copied,
2068 &page[ioa_dump->page_offset / 4],
2069 (cur_len / sizeof(u32)));
2071 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2074 ioa_dump->page_offset += cur_len;
2075 bytes_copied += cur_len;
2083 return bytes_copied;
2087 * ipr_init_dump_entry_hdr - Initialize a dump entry header.
2088 * @hdr: dump entry header struct
2093 static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr)
2095 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER;
2097 hdr->offset = sizeof(*hdr);
2098 hdr->status = IPR_DUMP_STATUS_SUCCESS;
2102 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump.
2103 * @ioa_cfg: ioa config struct
2104 * @driver_dump: driver dump struct
2109 static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg,
2110 struct ipr_driver_dump *driver_dump)
2112 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
2114 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr);
2115 driver_dump->ioa_type_entry.hdr.len =
2116 sizeof(struct ipr_dump_ioa_type_entry) -
2117 sizeof(struct ipr_dump_entry_header);
2118 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2119 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID;
2120 driver_dump->ioa_type_entry.type = ioa_cfg->type;
2121 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) |
2122 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) |
2123 ucode_vpd->minor_release[1];
2124 driver_dump->hdr.num_entries++;
2128 * ipr_dump_version_data - Fill in the driver version in the dump.
2129 * @ioa_cfg: ioa config struct
2130 * @driver_dump: driver dump struct
2135 static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg,
2136 struct ipr_driver_dump *driver_dump)
2138 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr);
2139 driver_dump->version_entry.hdr.len =
2140 sizeof(struct ipr_dump_version_entry) -
2141 sizeof(struct ipr_dump_entry_header);
2142 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
2143 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID;
2144 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION);
2145 driver_dump->hdr.num_entries++;
2149 * ipr_dump_trace_data - Fill in the IOA trace in the dump.
2150 * @ioa_cfg: ioa config struct
2151 * @driver_dump: driver dump struct
2156 static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg,
2157 struct ipr_driver_dump *driver_dump)
2159 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr);
2160 driver_dump->trace_entry.hdr.len =
2161 sizeof(struct ipr_dump_trace_entry) -
2162 sizeof(struct ipr_dump_entry_header);
2163 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2164 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID;
2165 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE);
2166 driver_dump->hdr.num_entries++;
2170 * ipr_dump_location_data - Fill in the IOA location in the dump.
2171 * @ioa_cfg: ioa config struct
2172 * @driver_dump: driver dump struct
2177 static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg,
2178 struct ipr_driver_dump *driver_dump)
2180 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr);
2181 driver_dump->location_entry.hdr.len =
2182 sizeof(struct ipr_dump_location_entry) -
2183 sizeof(struct ipr_dump_entry_header);
2184 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
2185 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID;
2186 strcpy(driver_dump->location_entry.location, ioa_cfg->pdev->dev.bus_id);
2187 driver_dump->hdr.num_entries++;
2191 * ipr_get_ioa_dump - Perform a dump of the driver and adapter.
2192 * @ioa_cfg: ioa config struct
2193 * @dump: dump struct
2198 static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump)
2200 unsigned long start_addr, sdt_word;
2201 unsigned long lock_flags = 0;
2202 struct ipr_driver_dump *driver_dump = &dump->driver_dump;
2203 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump;
2204 u32 num_entries, start_off, end_off;
2205 u32 bytes_to_copy, bytes_copied, rc;
2206 struct ipr_sdt *sdt;
2211 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2213 if (ioa_cfg->sdt_state != GET_DUMP) {
2214 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2218 start_addr = readl(ioa_cfg->ioa_mailbox);
2220 if (!ipr_sdt_is_fmt2(start_addr)) {
2221 dev_err(&ioa_cfg->pdev->dev,
2222 "Invalid dump table format: %lx\n", start_addr);
2223 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2227 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n");
2229 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER;
2231 /* Initialize the overall dump header */
2232 driver_dump->hdr.len = sizeof(struct ipr_driver_dump);
2233 driver_dump->hdr.num_entries = 1;
2234 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header);
2235 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS;
2236 driver_dump->hdr.os = IPR_DUMP_OS_LINUX;
2237 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME;
2239 ipr_dump_version_data(ioa_cfg, driver_dump);
2240 ipr_dump_location_data(ioa_cfg, driver_dump);
2241 ipr_dump_ioa_type_data(ioa_cfg, driver_dump);
2242 ipr_dump_trace_data(ioa_cfg, driver_dump);
2244 /* Update dump_header */
2245 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header);
2247 /* IOA Dump entry */
2248 ipr_init_dump_entry_hdr(&ioa_dump->hdr);
2249 ioa_dump->format = IPR_SDT_FMT2;
2250 ioa_dump->hdr.len = 0;
2251 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2252 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID;
2254 /* First entries in sdt are actually a list of dump addresses and
2255 lengths to gather the real dump data. sdt represents the pointer
2256 to the ioa generated dump table. Dump data will be extracted based
2257 on entries in this table */
2258 sdt = &ioa_dump->sdt;
2260 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt,
2261 sizeof(struct ipr_sdt) / sizeof(__be32));
2263 /* Smart Dump table is ready to use and the first entry is valid */
2264 if (rc || (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE)) {
2265 dev_err(&ioa_cfg->pdev->dev,
2266 "Dump of IOA failed. Dump table not valid: %d, %X.\n",
2267 rc, be32_to_cpu(sdt->hdr.state));
2268 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED;
2269 ioa_cfg->sdt_state = DUMP_OBTAINED;
2270 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2274 num_entries = be32_to_cpu(sdt->hdr.num_entries_used);
2276 if (num_entries > IPR_NUM_SDT_ENTRIES)
2277 num_entries = IPR_NUM_SDT_ENTRIES;
2279 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2281 for (i = 0; i < num_entries; i++) {
2282 if (ioa_dump->hdr.len > IPR_MAX_IOA_DUMP_SIZE) {
2283 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
2287 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) {
2288 sdt_word = be32_to_cpu(sdt->entry[i].bar_str_offset);
2289 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK;
2290 end_off = be32_to_cpu(sdt->entry[i].end_offset);
2292 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word) {
2293 bytes_to_copy = end_off - start_off;
2294 if (bytes_to_copy > IPR_MAX_IOA_DUMP_SIZE) {
2295 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY;
2299 /* Copy data from adapter to driver buffers */
2300 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word,
2303 ioa_dump->hdr.len += bytes_copied;
2305 if (bytes_copied != bytes_to_copy) {
2306 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
2313 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n");
2315 /* Update dump_header */
2316 driver_dump->hdr.len += ioa_dump->hdr.len;
2318 ioa_cfg->sdt_state = DUMP_OBTAINED;
2323 #define ipr_get_ioa_dump(ioa_cfg, dump) do { } while(0)
2327 * ipr_release_dump - Free adapter dump memory
2328 * @kref: kref struct
2333 static void ipr_release_dump(struct kref *kref)
2335 struct ipr_dump *dump = container_of(kref,struct ipr_dump,kref);
2336 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg;
2337 unsigned long lock_flags = 0;
2341 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2342 ioa_cfg->dump = NULL;
2343 ioa_cfg->sdt_state = INACTIVE;
2344 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2346 for (i = 0; i < dump->ioa_dump.next_page_index; i++)
2347 free_page((unsigned long) dump->ioa_dump.ioa_data[i]);
2354 * ipr_worker_thread - Worker thread
2355 * @work: ioa config struct
2357 * Called at task level from a work thread. This function takes care
2358 * of adding and removing device from the mid-layer as configuration
2359 * changes are detected by the adapter.
2364 static void ipr_worker_thread(struct work_struct *work)
2366 unsigned long lock_flags;
2367 struct ipr_resource_entry *res;
2368 struct scsi_device *sdev;
2369 struct ipr_dump *dump;
2370 struct ipr_ioa_cfg *ioa_cfg =
2371 container_of(work, struct ipr_ioa_cfg, work_q);
2372 u8 bus, target, lun;
2376 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2378 if (ioa_cfg->sdt_state == GET_DUMP) {
2379 dump = ioa_cfg->dump;
2381 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2384 kref_get(&dump->kref);
2385 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2386 ipr_get_ioa_dump(ioa_cfg, dump);
2387 kref_put(&dump->kref, ipr_release_dump);
2389 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2390 if (ioa_cfg->sdt_state == DUMP_OBTAINED)
2391 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2392 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2399 if (!ioa_cfg->allow_cmds || !ioa_cfg->allow_ml_add_del) {
2400 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2404 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
2405 if (res->del_from_ml && res->sdev) {
2408 if (!scsi_device_get(sdev)) {
2409 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
2410 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2411 scsi_remove_device(sdev);
2412 scsi_device_put(sdev);
2413 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2420 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
2421 if (res->add_to_ml) {
2422 bus = res->cfgte.res_addr.bus;
2423 target = res->cfgte.res_addr.target;
2424 lun = res->cfgte.res_addr.lun;
2426 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2427 scsi_add_device(ioa_cfg->host, bus, target, lun);
2428 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2433 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2434 kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE);
2438 #ifdef CONFIG_SCSI_IPR_TRACE
2440 * ipr_read_trace - Dump the adapter trace
2441 * @kobj: kobject struct
2442 * @bin_attr: bin_attribute struct
2445 * @count: buffer size
2448 * number of bytes printed to buffer
2450 static ssize_t ipr_read_trace(struct kobject *kobj,
2451 struct bin_attribute *bin_attr,
2452 char *buf, loff_t off, size_t count)
2454 struct device *dev = container_of(kobj, struct device, kobj);
2455 struct Scsi_Host *shost = class_to_shost(dev);
2456 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2457 unsigned long lock_flags = 0;
2458 int size = IPR_TRACE_SIZE;
2459 char *src = (char *)ioa_cfg->trace;
2463 if (off + count > size) {
2468 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2469 memcpy(buf, &src[off], count);
2470 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2474 static struct bin_attribute ipr_trace_attr = {
2480 .read = ipr_read_trace,
2484 static const struct {
2485 enum ipr_cache_state state;
2487 } cache_state [] = {
2488 { CACHE_NONE, "none" },
2489 { CACHE_DISABLED, "disabled" },
2490 { CACHE_ENABLED, "enabled" }
2494 * ipr_show_write_caching - Show the write caching attribute
2495 * @dev: device struct
2499 * number of bytes printed to buffer
2501 static ssize_t ipr_show_write_caching(struct device *dev,
2502 struct device_attribute *attr, char *buf)
2504 struct Scsi_Host *shost = class_to_shost(dev);
2505 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2506 unsigned long lock_flags = 0;
2509 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2510 for (i = 0; i < ARRAY_SIZE(cache_state); i++) {
2511 if (cache_state[i].state == ioa_cfg->cache_state) {
2512 len = snprintf(buf, PAGE_SIZE, "%s\n", cache_state[i].name);
2516 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2522 * ipr_store_write_caching - Enable/disable adapter write cache
2523 * @dev: device struct
2525 * @count: buffer size
2527 * This function will enable/disable adapter write cache.
2530 * count on success / other on failure
2532 static ssize_t ipr_store_write_caching(struct device *dev,
2533 struct device_attribute *attr,
2534 const char *buf, size_t count)
2536 struct Scsi_Host *shost = class_to_shost(dev);
2537 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2538 unsigned long lock_flags = 0;
2539 enum ipr_cache_state new_state = CACHE_INVALID;
2542 if (!capable(CAP_SYS_ADMIN))
2544 if (ioa_cfg->cache_state == CACHE_NONE)
2547 for (i = 0; i < ARRAY_SIZE(cache_state); i++) {
2548 if (!strncmp(cache_state[i].name, buf, strlen(cache_state[i].name))) {
2549 new_state = cache_state[i].state;
2554 if (new_state != CACHE_DISABLED && new_state != CACHE_ENABLED)
2557 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2558 if (ioa_cfg->cache_state == new_state) {
2559 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2563 ioa_cfg->cache_state = new_state;
2564 dev_info(&ioa_cfg->pdev->dev, "%s adapter write cache.\n",
2565 new_state == CACHE_ENABLED ? "Enabling" : "Disabling");
2566 if (!ioa_cfg->in_reset_reload)
2567 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
2568 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2569 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2574 static struct device_attribute ipr_ioa_cache_attr = {
2576 .name = "write_cache",
2577 .mode = S_IRUGO | S_IWUSR,
2579 .show = ipr_show_write_caching,
2580 .store = ipr_store_write_caching
2584 * ipr_show_fw_version - Show the firmware version
2585 * @dev: class device struct
2589 * number of bytes printed to buffer
2591 static ssize_t ipr_show_fw_version(struct device *dev,
2592 struct device_attribute *attr, char *buf)
2594 struct Scsi_Host *shost = class_to_shost(dev);
2595 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2596 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
2597 unsigned long lock_flags = 0;
2600 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2601 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n",
2602 ucode_vpd->major_release, ucode_vpd->card_type,
2603 ucode_vpd->minor_release[0],
2604 ucode_vpd->minor_release[1]);
2605 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2609 static struct device_attribute ipr_fw_version_attr = {
2611 .name = "fw_version",
2614 .show = ipr_show_fw_version,
2618 * ipr_show_log_level - Show the adapter's error logging level
2619 * @dev: class device struct
2623 * number of bytes printed to buffer
2625 static ssize_t ipr_show_log_level(struct device *dev,
2626 struct device_attribute *attr, char *buf)
2628 struct Scsi_Host *shost = class_to_shost(dev);
2629 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2630 unsigned long lock_flags = 0;
2633 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2634 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level);
2635 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2640 * ipr_store_log_level - Change the adapter's error logging level
2641 * @dev: class device struct
2645 * number of bytes printed to buffer
2647 static ssize_t ipr_store_log_level(struct device *dev,
2648 struct device_attribute *attr,
2649 const char *buf, size_t count)
2651 struct Scsi_Host *shost = class_to_shost(dev);
2652 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2653 unsigned long lock_flags = 0;
2655 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2656 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10);
2657 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2661 static struct device_attribute ipr_log_level_attr = {
2663 .name = "log_level",
2664 .mode = S_IRUGO | S_IWUSR,
2666 .show = ipr_show_log_level,
2667 .store = ipr_store_log_level
2671 * ipr_store_diagnostics - IOA Diagnostics interface
2672 * @dev: device struct
2674 * @count: buffer size
2676 * This function will reset the adapter and wait a reasonable
2677 * amount of time for any errors that the adapter might log.
2680 * count on success / other on failure
2682 static ssize_t ipr_store_diagnostics(struct device *dev,
2683 struct device_attribute *attr,
2684 const char *buf, size_t count)
2686 struct Scsi_Host *shost = class_to_shost(dev);
2687 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2688 unsigned long lock_flags = 0;
2691 if (!capable(CAP_SYS_ADMIN))
2694 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2695 while(ioa_cfg->in_reset_reload) {
2696 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2697 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2698 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2701 ioa_cfg->errors_logged = 0;
2702 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
2704 if (ioa_cfg->in_reset_reload) {
2705 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2706 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2708 /* Wait for a second for any errors to be logged */
2711 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2715 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2716 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged)
2718 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2723 static struct device_attribute ipr_diagnostics_attr = {
2725 .name = "run_diagnostics",
2728 .store = ipr_store_diagnostics
2732 * ipr_show_adapter_state - Show the adapter's state
2733 * @class_dev: device struct
2737 * number of bytes printed to buffer
2739 static ssize_t ipr_show_adapter_state(struct device *dev,
2740 struct device_attribute *attr, char *buf)
2742 struct Scsi_Host *shost = class_to_shost(dev);
2743 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2744 unsigned long lock_flags = 0;
2747 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2748 if (ioa_cfg->ioa_is_dead)
2749 len = snprintf(buf, PAGE_SIZE, "offline\n");
2751 len = snprintf(buf, PAGE_SIZE, "online\n");
2752 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2757 * ipr_store_adapter_state - Change adapter state
2758 * @dev: device struct
2760 * @count: buffer size
2762 * This function will change the adapter's state.
2765 * count on success / other on failure
2767 static ssize_t ipr_store_adapter_state(struct device *dev,
2768 struct device_attribute *attr,
2769 const char *buf, size_t count)
2771 struct Scsi_Host *shost = class_to_shost(dev);
2772 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2773 unsigned long lock_flags;
2776 if (!capable(CAP_SYS_ADMIN))
2779 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2780 if (ioa_cfg->ioa_is_dead && !strncmp(buf, "online", 6)) {
2781 ioa_cfg->ioa_is_dead = 0;
2782 ioa_cfg->reset_retries = 0;
2783 ioa_cfg->in_ioa_bringdown = 0;
2784 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2786 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2787 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2792 static struct device_attribute ipr_ioa_state_attr = {
2794 .name = "online_state",
2795 .mode = S_IRUGO | S_IWUSR,
2797 .show = ipr_show_adapter_state,
2798 .store = ipr_store_adapter_state
2802 * ipr_store_reset_adapter - Reset the adapter
2803 * @dev: device struct
2805 * @count: buffer size
2807 * This function will reset the adapter.
2810 * count on success / other on failure
2812 static ssize_t ipr_store_reset_adapter(struct device *dev,
2813 struct device_attribute *attr,
2814 const char *buf, size_t count)
2816 struct Scsi_Host *shost = class_to_shost(dev);
2817 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2818 unsigned long lock_flags;
2821 if (!capable(CAP_SYS_ADMIN))
2824 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2825 if (!ioa_cfg->in_reset_reload)
2826 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
2827 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2828 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2833 static struct device_attribute ipr_ioa_reset_attr = {
2835 .name = "reset_host",
2838 .store = ipr_store_reset_adapter
2842 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer
2843 * @buf_len: buffer length
2845 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather
2846 * list to use for microcode download
2849 * pointer to sglist / NULL on failure
2851 static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
2853 int sg_size, order, bsize_elem, num_elem, i, j;
2854 struct ipr_sglist *sglist;
2855 struct scatterlist *scatterlist;
2858 /* Get the minimum size per scatter/gather element */
2859 sg_size = buf_len / (IPR_MAX_SGLIST - 1);
2861 /* Get the actual size per element */
2862 order = get_order(sg_size);
2864 /* Determine the actual number of bytes per element */
2865 bsize_elem = PAGE_SIZE * (1 << order);
2867 /* Determine the actual number of sg entries needed */
2868 if (buf_len % bsize_elem)
2869 num_elem = (buf_len / bsize_elem) + 1;
2871 num_elem = buf_len / bsize_elem;
2873 /* Allocate a scatter/gather list for the DMA */
2874 sglist = kzalloc(sizeof(struct ipr_sglist) +
2875 (sizeof(struct scatterlist) * (num_elem - 1)),
2878 if (sglist == NULL) {
2883 scatterlist = sglist->scatterlist;
2884 sg_init_table(scatterlist, num_elem);
2886 sglist->order = order;
2887 sglist->num_sg = num_elem;
2889 /* Allocate a bunch of sg elements */
2890 for (i = 0; i < num_elem; i++) {
2891 page = alloc_pages(GFP_KERNEL, order);
2895 /* Free up what we already allocated */
2896 for (j = i - 1; j >= 0; j--)
2897 __free_pages(sg_page(&scatterlist[j]), order);
2902 sg_set_page(&scatterlist[i], page, 0, 0);
2909 * ipr_free_ucode_buffer - Frees a microcode download buffer
2910 * @p_dnld: scatter/gather list pointer
2912 * Free a DMA'able ucode download buffer previously allocated with
2913 * ipr_alloc_ucode_buffer
2918 static void ipr_free_ucode_buffer(struct ipr_sglist *sglist)
2922 for (i = 0; i < sglist->num_sg; i++)
2923 __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order);
2929 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer
2930 * @sglist: scatter/gather list pointer
2931 * @buffer: buffer pointer
2932 * @len: buffer length
2934 * Copy a microcode image from a user buffer into a buffer allocated by
2935 * ipr_alloc_ucode_buffer
2938 * 0 on success / other on failure
2940 static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
2941 u8 *buffer, u32 len)
2943 int bsize_elem, i, result = 0;
2944 struct scatterlist *scatterlist;
2947 /* Determine the actual number of bytes per element */
2948 bsize_elem = PAGE_SIZE * (1 << sglist->order);
2950 scatterlist = sglist->scatterlist;
2952 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) {
2953 struct page *page = sg_page(&scatterlist[i]);
2956 memcpy(kaddr, buffer, bsize_elem);
2959 scatterlist[i].length = bsize_elem;
2967 if (len % bsize_elem) {
2968 struct page *page = sg_page(&scatterlist[i]);
2971 memcpy(kaddr, buffer, len % bsize_elem);
2974 scatterlist[i].length = len % bsize_elem;
2977 sglist->buffer_len = len;
2982 * ipr_build_ucode_ioadl - Build a microcode download IOADL
2983 * @ipr_cmd: ipr command struct
2984 * @sglist: scatter/gather list
2986 * Builds a microcode download IOA data list (IOADL).
2989 static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd,
2990 struct ipr_sglist *sglist)
2992 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
2993 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
2994 struct scatterlist *scatterlist = sglist->scatterlist;
2997 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
2998 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
2999 ioarcb->write_data_transfer_length = cpu_to_be32(sglist->buffer_len);
3000 ioarcb->write_ioadl_len =
3001 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
3003 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3004 ioadl[i].flags_and_data_len =
3005 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i]));
3007 cpu_to_be32(sg_dma_address(&scatterlist[i]));
3010 ioadl[i-1].flags_and_data_len |=
3011 cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3015 * ipr_update_ioa_ucode - Update IOA's microcode
3016 * @ioa_cfg: ioa config struct
3017 * @sglist: scatter/gather list
3019 * Initiate an adapter reset to update the IOA's microcode
3022 * 0 on success / -EIO on failure
3024 static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg,
3025 struct ipr_sglist *sglist)
3027 unsigned long lock_flags;
3029 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3030 while(ioa_cfg->in_reset_reload) {
3031 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3032 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3033 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3036 if (ioa_cfg->ucode_sglist) {
3037 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3038 dev_err(&ioa_cfg->pdev->dev,
3039 "Microcode download already in progress\n");
3043 sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist,
3044 sglist->num_sg, DMA_TO_DEVICE);
3046 if (!sglist->num_dma_sg) {
3047 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3048 dev_err(&ioa_cfg->pdev->dev,
3049 "Failed to map microcode download buffer!\n");
3053 ioa_cfg->ucode_sglist = sglist;
3054 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3055 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3056 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3058 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3059 ioa_cfg->ucode_sglist = NULL;
3060 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3065 * ipr_store_update_fw - Update the firmware on the adapter
3066 * @class_dev: device struct
3068 * @count: buffer size
3070 * This function will update the firmware on the adapter.
3073 * count on success / other on failure
3075 static ssize_t ipr_store_update_fw(struct device *dev,
3076 struct device_attribute *attr,
3077 const char *buf, size_t count)
3079 struct Scsi_Host *shost = class_to_shost(dev);
3080 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3081 struct ipr_ucode_image_header *image_hdr;
3082 const struct firmware *fw_entry;
3083 struct ipr_sglist *sglist;
3086 int len, result, dnld_size;
3088 if (!capable(CAP_SYS_ADMIN))
3091 len = snprintf(fname, 99, "%s", buf);
3092 fname[len-1] = '\0';
3094 if(request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
3095 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname);
3099 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data;
3101 if (be32_to_cpu(image_hdr->header_length) > fw_entry->size ||
3102 (ioa_cfg->vpd_cbs->page3_data.card_type &&
3103 ioa_cfg->vpd_cbs->page3_data.card_type != image_hdr->card_type)) {
3104 dev_err(&ioa_cfg->pdev->dev, "Invalid microcode buffer\n");
3105 release_firmware(fw_entry);
3109 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length);
3110 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length);
3111 sglist = ipr_alloc_ucode_buffer(dnld_size);
3114 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n");
3115 release_firmware(fw_entry);
3119 result = ipr_copy_ucode_buffer(sglist, src, dnld_size);
3122 dev_err(&ioa_cfg->pdev->dev,
3123 "Microcode buffer copy to DMA buffer failed\n");
3127 result = ipr_update_ioa_ucode(ioa_cfg, sglist);
3132 ipr_free_ucode_buffer(sglist);
3133 release_firmware(fw_entry);
3137 static struct device_attribute ipr_update_fw_attr = {
3139 .name = "update_fw",
3142 .store = ipr_store_update_fw
3145 static struct device_attribute *ipr_ioa_attrs[] = {
3146 &ipr_fw_version_attr,
3147 &ipr_log_level_attr,
3148 &ipr_diagnostics_attr,
3149 &ipr_ioa_state_attr,
3150 &ipr_ioa_reset_attr,
3151 &ipr_update_fw_attr,
3152 &ipr_ioa_cache_attr,
3156 #ifdef CONFIG_SCSI_IPR_DUMP
3158 * ipr_read_dump - Dump the adapter
3159 * @kobj: kobject struct
3160 * @bin_attr: bin_attribute struct
3163 * @count: buffer size
3166 * number of bytes printed to buffer
3168 static ssize_t ipr_read_dump(struct kobject *kobj,
3169 struct bin_attribute *bin_attr,
3170 char *buf, loff_t off, size_t count)
3172 struct device *cdev = container_of(kobj, struct device, kobj);
3173 struct Scsi_Host *shost = class_to_shost(cdev);
3174 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3175 struct ipr_dump *dump;
3176 unsigned long lock_flags = 0;
3181 if (!capable(CAP_SYS_ADMIN))
3184 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3185 dump = ioa_cfg->dump;
3187 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) {
3188 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3191 kref_get(&dump->kref);
3192 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3194 if (off > dump->driver_dump.hdr.len) {
3195 kref_put(&dump->kref, ipr_release_dump);
3199 if (off + count > dump->driver_dump.hdr.len) {
3200 count = dump->driver_dump.hdr.len - off;
3204 if (count && off < sizeof(dump->driver_dump)) {
3205 if (off + count > sizeof(dump->driver_dump))
3206 len = sizeof(dump->driver_dump) - off;
3209 src = (u8 *)&dump->driver_dump + off;
3210 memcpy(buf, src, len);
3216 off -= sizeof(dump->driver_dump);
3218 if (count && off < offsetof(struct ipr_ioa_dump, ioa_data)) {
3219 if (off + count > offsetof(struct ipr_ioa_dump, ioa_data))
3220 len = offsetof(struct ipr_ioa_dump, ioa_data) - off;
3223 src = (u8 *)&dump->ioa_dump + off;
3224 memcpy(buf, src, len);
3230 off -= offsetof(struct ipr_ioa_dump, ioa_data);
3233 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK))
3234 len = PAGE_ALIGN(off) - off;
3237 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT];
3238 src += off & ~PAGE_MASK;
3239 memcpy(buf, src, len);
3245 kref_put(&dump->kref, ipr_release_dump);
3250 * ipr_alloc_dump - Prepare for adapter dump
3251 * @ioa_cfg: ioa config struct
3254 * 0 on success / other on failure
3256 static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
3258 struct ipr_dump *dump;
3259 unsigned long lock_flags = 0;
3261 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
3264 ipr_err("Dump memory allocation failed\n");
3268 kref_init(&dump->kref);
3269 dump->ioa_cfg = ioa_cfg;
3271 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3273 if (INACTIVE != ioa_cfg->sdt_state) {
3274 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3279 ioa_cfg->dump = dump;
3280 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
3281 if (ioa_cfg->ioa_is_dead && !ioa_cfg->dump_taken) {
3282 ioa_cfg->dump_taken = 1;
3283 schedule_work(&ioa_cfg->work_q);
3285 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3291 * ipr_free_dump - Free adapter dump memory
3292 * @ioa_cfg: ioa config struct
3295 * 0 on success / other on failure
3297 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
3299 struct ipr_dump *dump;
3300 unsigned long lock_flags = 0;
3304 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3305 dump = ioa_cfg->dump;
3307 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3311 ioa_cfg->dump = NULL;
3312 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3314 kref_put(&dump->kref, ipr_release_dump);
3321 * ipr_write_dump - Setup dump state of adapter
3322 * @kobj: kobject struct
3323 * @bin_attr: bin_attribute struct
3326 * @count: buffer size
3329 * number of bytes printed to buffer
3331 static ssize_t ipr_write_dump(struct kobject *kobj,
3332 struct bin_attribute *bin_attr,
3333 char *buf, loff_t off, size_t count)
3335 struct device *cdev = container_of(kobj, struct device, kobj);
3336 struct Scsi_Host *shost = class_to_shost(cdev);
3337 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3340 if (!capable(CAP_SYS_ADMIN))
3344 rc = ipr_alloc_dump(ioa_cfg);
3345 else if (buf[0] == '0')
3346 rc = ipr_free_dump(ioa_cfg);
3356 static struct bin_attribute ipr_dump_attr = {
3359 .mode = S_IRUSR | S_IWUSR,
3362 .read = ipr_read_dump,
3363 .write = ipr_write_dump
3366 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; };
3370 * ipr_change_queue_depth - Change the device's queue depth
3371 * @sdev: scsi device struct
3372 * @qdepth: depth to set
3377 static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth)
3379 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
3380 struct ipr_resource_entry *res;
3381 unsigned long lock_flags = 0;
3383 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3384 res = (struct ipr_resource_entry *)sdev->hostdata;
3386 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN)
3387 qdepth = IPR_MAX_CMD_PER_ATA_LUN;
3388 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3390 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
3391 return sdev->queue_depth;
3395 * ipr_change_queue_type - Change the device's queue type
3396 * @dsev: scsi device struct
3397 * @tag_type: type of tags to use
3400 * actual queue type set
3402 static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type)
3404 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
3405 struct ipr_resource_entry *res;
3406 unsigned long lock_flags = 0;
3408 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3409 res = (struct ipr_resource_entry *)sdev->hostdata;
3412 if (ipr_is_gscsi(res) && sdev->tagged_supported) {
3414 * We don't bother quiescing the device here since the
3415 * adapter firmware does it for us.
3417 scsi_set_tag_type(sdev, tag_type);
3420 scsi_activate_tcq(sdev, sdev->queue_depth);
3422 scsi_deactivate_tcq(sdev, sdev->queue_depth);
3428 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3433 * ipr_show_adapter_handle - Show the adapter's resource handle for this device
3434 * @dev: device struct
3438 * number of bytes printed to buffer
3440 static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf)
3442 struct scsi_device *sdev = to_scsi_device(dev);
3443 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
3444 struct ipr_resource_entry *res;
3445 unsigned long lock_flags = 0;
3446 ssize_t len = -ENXIO;
3448 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3449 res = (struct ipr_resource_entry *)sdev->hostdata;
3451 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->cfgte.res_handle);
3452 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3456 static struct device_attribute ipr_adapter_handle_attr = {
3458 .name = "adapter_handle",
3461 .show = ipr_show_adapter_handle
3464 static struct device_attribute *ipr_dev_attrs[] = {
3465 &ipr_adapter_handle_attr,
3470 * ipr_biosparam - Return the HSC mapping
3471 * @sdev: scsi device struct
3472 * @block_device: block device pointer
3473 * @capacity: capacity of the device
3474 * @parm: Array containing returned HSC values.
3476 * This function generates the HSC parms that fdisk uses.
3477 * We want to make sure we return something that places partitions
3478 * on 4k boundaries for best performance with the IOA.
3483 static int ipr_biosparam(struct scsi_device *sdev,
3484 struct block_device *block_device,
3485 sector_t capacity, int *parm)
3493 cylinders = capacity;
3494 sector_div(cylinders, (128 * 32));
3499 parm[2] = cylinders;
3505 * ipr_find_starget - Find target based on bus/target.
3506 * @starget: scsi target struct
3509 * resource entry pointer if found / NULL if not found
3511 static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget)
3513 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
3514 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
3515 struct ipr_resource_entry *res;
3517 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3518 if ((res->cfgte.res_addr.bus == starget->channel) &&
3519 (res->cfgte.res_addr.target == starget->id) &&
3520 (res->cfgte.res_addr.lun == 0)) {
3528 static struct ata_port_info sata_port_info;
3531 * ipr_target_alloc - Prepare for commands to a SCSI target
3532 * @starget: scsi target struct
3534 * If the device is a SATA device, this function allocates an
3535 * ATA port with libata, else it does nothing.
3538 * 0 on success / non-0 on failure
3540 static int ipr_target_alloc(struct scsi_target *starget)
3542 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
3543 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
3544 struct ipr_sata_port *sata_port;
3545 struct ata_port *ap;
3546 struct ipr_resource_entry *res;
3547 unsigned long lock_flags;
3549 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3550 res = ipr_find_starget(starget);
3551 starget->hostdata = NULL;
3553 if (res && ipr_is_gata(res)) {
3554 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3555 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL);
3559 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost);
3561 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3562 sata_port->ioa_cfg = ioa_cfg;
3564 sata_port->res = res;
3566 res->sata_port = sata_port;
3567 ap->private_data = sata_port;
3568 starget->hostdata = sata_port;
3574 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3580 * ipr_target_destroy - Destroy a SCSI target
3581 * @starget: scsi target struct
3583 * If the device was a SATA device, this function frees the libata
3584 * ATA port, else it does nothing.
3587 static void ipr_target_destroy(struct scsi_target *starget)
3589 struct ipr_sata_port *sata_port = starget->hostdata;
3592 starget->hostdata = NULL;
3593 ata_sas_port_destroy(sata_port->ap);
3599 * ipr_find_sdev - Find device based on bus/target/lun.
3600 * @sdev: scsi device struct
3603 * resource entry pointer if found / NULL if not found
3605 static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev)
3607 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
3608 struct ipr_resource_entry *res;
3610 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3611 if ((res->cfgte.res_addr.bus == sdev->channel) &&
3612 (res->cfgte.res_addr.target == sdev->id) &&
3613 (res->cfgte.res_addr.lun == sdev->lun))
3621 * ipr_slave_destroy - Unconfigure a SCSI device
3622 * @sdev: scsi device struct
3627 static void ipr_slave_destroy(struct scsi_device *sdev)
3629 struct ipr_resource_entry *res;
3630 struct ipr_ioa_cfg *ioa_cfg;
3631 unsigned long lock_flags = 0;
3633 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
3635 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3636 res = (struct ipr_resource_entry *) sdev->hostdata;
3639 ata_port_disable(res->sata_port->ap);
3640 sdev->hostdata = NULL;
3642 res->sata_port = NULL;
3644 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3648 * ipr_slave_configure - Configure a SCSI device
3649 * @sdev: scsi device struct
3651 * This function configures the specified scsi device.
3656 static int ipr_slave_configure(struct scsi_device *sdev)
3658 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
3659 struct ipr_resource_entry *res;
3660 unsigned long lock_flags = 0;
3662 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3663 res = sdev->hostdata;
3665 if (ipr_is_af_dasd_device(res))
3666 sdev->type = TYPE_RAID;
3667 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) {
3668 sdev->scsi_level = 4;
3669 sdev->no_uld_attach = 1;
3671 if (ipr_is_vset_device(res)) {
3672 sdev->timeout = IPR_VSET_RW_TIMEOUT;
3673 blk_queue_max_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
3675 if (ipr_is_vset_device(res) || ipr_is_scsi_disk(res))
3676 sdev->allow_restart = 1;
3677 if (ipr_is_gata(res) && res->sata_port) {
3678 scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN);
3679 ata_sas_slave_configure(sdev, res->sata_port->ap);
3681 scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun);
3684 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3689 * ipr_ata_slave_alloc - Prepare for commands to a SATA device
3690 * @sdev: scsi device struct
3692 * This function initializes an ATA port so that future commands
3693 * sent through queuecommand will work.
3698 static int ipr_ata_slave_alloc(struct scsi_device *sdev)
3700 struct ipr_sata_port *sata_port = NULL;
3704 if (sdev->sdev_target)
3705 sata_port = sdev->sdev_target->hostdata;
3707 rc = ata_sas_port_init(sata_port->ap);
3709 ipr_slave_destroy(sdev);
3716 * ipr_slave_alloc - Prepare for commands to a device.
3717 * @sdev: scsi device struct
3719 * This function saves a pointer to the resource entry
3720 * in the scsi device struct if the device exists. We
3721 * can then use this pointer in ipr_queuecommand when
3722 * handling new commands.
3725 * 0 on success / -ENXIO if device does not exist
3727 static int ipr_slave_alloc(struct scsi_device *sdev)
3729 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
3730 struct ipr_resource_entry *res;
3731 unsigned long lock_flags;
3734 sdev->hostdata = NULL;
3736 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3738 res = ipr_find_sdev(sdev);
3743 sdev->hostdata = res;
3744 if (!ipr_is_naca_model(res))
3745 res->needs_sync_complete = 1;
3747 if (ipr_is_gata(res)) {
3748 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3749 return ipr_ata_slave_alloc(sdev);
3753 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3759 * ipr_eh_host_reset - Reset the host adapter
3760 * @scsi_cmd: scsi command struct
3765 static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd)
3767 struct ipr_ioa_cfg *ioa_cfg;
3771 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
3773 dev_err(&ioa_cfg->pdev->dev,
3774 "Adapter being reset as a result of error recovery.\n");
3776 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
3777 ioa_cfg->sdt_state = GET_DUMP;
3779 rc = ipr_reset_reload(ioa_cfg, IPR_SHUTDOWN_ABBREV);
3785 static int ipr_eh_host_reset(struct scsi_cmnd * cmd)
3789 spin_lock_irq(cmd->device->host->host_lock);
3790 rc = __ipr_eh_host_reset(cmd);
3791 spin_unlock_irq(cmd->device->host->host_lock);
3797 * ipr_device_reset - Reset the device
3798 * @ioa_cfg: ioa config struct
3799 * @res: resource entry struct
3801 * This function issues a device reset to the affected device.
3802 * If the device is a SCSI device, a LUN reset will be sent
3803 * to the device first. If that does not work, a target reset
3804 * will be sent. If the device is a SATA device, a PHY reset will
3808 * 0 on success / non-zero on failure
3810 static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
3811 struct ipr_resource_entry *res)
3813 struct ipr_cmnd *ipr_cmd;
3814 struct ipr_ioarcb *ioarcb;
3815 struct ipr_cmd_pkt *cmd_pkt;
3816 struct ipr_ioarcb_ata_regs *regs;
3820 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
3821 ioarcb = &ipr_cmd->ioarcb;
3822 cmd_pkt = &ioarcb->cmd_pkt;
3823 regs = &ioarcb->add_data.u.regs;
3825 ioarcb->res_handle = res->cfgte.res_handle;
3826 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
3827 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
3828 if (ipr_is_gata(res)) {
3829 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET;
3830 ioarcb->add_cmd_parms_len = cpu_to_be32(sizeof(regs->flags));
3831 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
3834 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
3835 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
3836 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
3837 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET)
3838 memcpy(&res->sata_port->ioasa, &ipr_cmd->ioasa.u.gata,
3839 sizeof(struct ipr_ioasa_gata));
3842 return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0);
3846 * ipr_sata_reset - Reset the SATA port
3847 * @link: SATA link to reset
3848 * @classes: class of the attached device
3850 * This function issues a SATA phy reset to the affected ATA link.
3853 * 0 on success / non-zero on failure
3855 static int ipr_sata_reset(struct ata_link *link, unsigned int *classes,
3856 unsigned long deadline)
3858 struct ipr_sata_port *sata_port = link->ap->private_data;
3859 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
3860 struct ipr_resource_entry *res;
3861 unsigned long lock_flags = 0;
3865 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3866 while(ioa_cfg->in_reset_reload) {
3867 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3868 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3869 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3872 res = sata_port->res;
3874 rc = ipr_device_reset(ioa_cfg, res);
3875 switch(res->cfgte.proto) {
3876 case IPR_PROTO_SATA:
3877 case IPR_PROTO_SAS_STP:
3878 *classes = ATA_DEV_ATA;
3880 case IPR_PROTO_SATA_ATAPI:
3881 case IPR_PROTO_SAS_STP_ATAPI:
3882 *classes = ATA_DEV_ATAPI;
3885 *classes = ATA_DEV_UNKNOWN;
3890 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3896 * ipr_eh_dev_reset - Reset the device
3897 * @scsi_cmd: scsi command struct
3899 * This function issues a device reset to the affected device.
3900 * A LUN reset will be sent to the device first. If that does
3901 * not work, a target reset will be sent.
3906 static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd)
3908 struct ipr_cmnd *ipr_cmd;
3909 struct ipr_ioa_cfg *ioa_cfg;
3910 struct ipr_resource_entry *res;
3911 struct ata_port *ap;
3915 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
3916 res = scsi_cmd->device->hostdata;
3922 * If we are currently going through reset/reload, return failed. This will force the
3923 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
3926 if (ioa_cfg->in_reset_reload)
3928 if (ioa_cfg->ioa_is_dead)
3931 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
3932 if (ipr_cmd->ioarcb.res_handle == res->cfgte.res_handle) {
3933 if (ipr_cmd->scsi_cmd)
3934 ipr_cmd->done = ipr_scsi_eh_done;
3936 ipr_cmd->done = ipr_sata_eh_done;
3937 if (ipr_cmd->qc && !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) {
3938 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
3939 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED;
3944 res->resetting_device = 1;
3945 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n");
3947 if (ipr_is_gata(res) && res->sata_port) {
3948 ap = res->sata_port->ap;
3949 spin_unlock_irq(scsi_cmd->device->host->host_lock);
3950 ata_std_error_handler(ap);
3951 spin_lock_irq(scsi_cmd->device->host->host_lock);
3953 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
3954 if (ipr_cmd->ioarcb.res_handle == res->cfgte.res_handle) {
3960 rc = ipr_device_reset(ioa_cfg, res);
3961 res->resetting_device = 0;
3964 return (rc ? FAILED : SUCCESS);
3967 static int ipr_eh_dev_reset(struct scsi_cmnd * cmd)
3971 spin_lock_irq(cmd->device->host->host_lock);
3972 rc = __ipr_eh_dev_reset(cmd);
3973 spin_unlock_irq(cmd->device->host->host_lock);
3979 * ipr_bus_reset_done - Op done function for bus reset.
3980 * @ipr_cmd: ipr command struct
3982 * This function is the op done function for a bus reset
3987 static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
3989 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
3990 struct ipr_resource_entry *res;
3993 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3994 if (!memcmp(&res->cfgte.res_handle, &ipr_cmd->ioarcb.res_handle,
3995 sizeof(res->cfgte.res_handle))) {
3996 scsi_report_bus_reset(ioa_cfg->host, res->cfgte.res_addr.bus);
4002 * If abort has not completed, indicate the reset has, else call the
4003 * abort's done function to wake the sleeping eh thread
4005 if (ipr_cmd->sibling->sibling)
4006 ipr_cmd->sibling->sibling = NULL;
4008 ipr_cmd->sibling->done(ipr_cmd->sibling);
4010 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4015 * ipr_abort_timeout - An abort task has timed out
4016 * @ipr_cmd: ipr command struct
4018 * This function handles when an abort task times out. If this
4019 * happens we issue a bus reset since we have resources tied
4020 * up that must be freed before returning to the midlayer.
4025 static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
4027 struct ipr_cmnd *reset_cmd;
4028 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4029 struct ipr_cmd_pkt *cmd_pkt;
4030 unsigned long lock_flags = 0;
4033 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4034 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) {
4035 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4039 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n");
4040 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4041 ipr_cmd->sibling = reset_cmd;
4042 reset_cmd->sibling = ipr_cmd;
4043 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle;
4044 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt;
4045 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4046 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
4047 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET;
4049 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
4050 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4055 * ipr_cancel_op - Cancel specified op
4056 * @scsi_cmd: scsi command struct
4058 * This function cancels specified op.
4063 static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd)
4065 struct ipr_cmnd *ipr_cmd;
4066 struct ipr_ioa_cfg *ioa_cfg;
4067 struct ipr_resource_entry *res;
4068 struct ipr_cmd_pkt *cmd_pkt;
4073 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
4074 res = scsi_cmd->device->hostdata;
4076 /* If we are currently going through reset/reload, return failed.
4077 * This will force the mid-layer to call ipr_eh_host_reset,
4078 * which will then go to sleep and wait for the reset to complete
4080 if (ioa_cfg->in_reset_reload || ioa_cfg->ioa_is_dead)
4082 if (!res || !ipr_is_gscsi(res))
4085 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
4086 if (ipr_cmd->scsi_cmd == scsi_cmd) {
4087 ipr_cmd->done = ipr_scsi_eh_done;
4096 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4097 ipr_cmd->ioarcb.res_handle = res->cfgte.res_handle;
4098 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
4099 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4100 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
4101 ipr_cmd->u.sdev = scsi_cmd->device;
4103 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n",
4105 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
4106 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4109 * If the abort task timed out and we sent a bus reset, we will get
4110 * one the following responses to the abort
4112 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) {
4117 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4118 if (!ipr_is_naca_model(res))
4119 res->needs_sync_complete = 1;
4122 return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS);
4126 * ipr_eh_abort - Abort a single op
4127 * @scsi_cmd: scsi command struct
4132 static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd)
4134 unsigned long flags;
4139 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags);
4140 rc = ipr_cancel_op(scsi_cmd);
4141 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags);
4148 * ipr_handle_other_interrupt - Handle "other" interrupts
4149 * @ioa_cfg: ioa config struct
4150 * @int_reg: interrupt register
4153 * IRQ_NONE / IRQ_HANDLED
4155 static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg,
4156 volatile u32 int_reg)
4158 irqreturn_t rc = IRQ_HANDLED;
4160 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
4161 /* Mask the interrupt */
4162 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg);
4164 /* Clear the interrupt */
4165 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg);
4166 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
4168 list_del(&ioa_cfg->reset_cmd->queue);
4169 del_timer(&ioa_cfg->reset_cmd->timer);
4170 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
4172 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED)
4173 ioa_cfg->ioa_unit_checked = 1;
4175 dev_err(&ioa_cfg->pdev->dev,
4176 "Permanent IOA failure. 0x%08X\n", int_reg);
4178 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4179 ioa_cfg->sdt_state = GET_DUMP;
4181 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
4182 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
4189 * ipr_isr - Interrupt service routine
4191 * @devp: pointer to ioa config struct
4194 * IRQ_NONE / IRQ_HANDLED
4196 static irqreturn_t ipr_isr(int irq, void *devp)
4198 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
4199 unsigned long lock_flags = 0;
4200 volatile u32 int_reg, int_mask_reg;
4203 struct ipr_cmnd *ipr_cmd;
4204 irqreturn_t rc = IRQ_NONE;
4206 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4208 /* If interrupts are disabled, ignore the interrupt */
4209 if (!ioa_cfg->allow_interrupts) {
4210 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4214 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
4215 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
4217 /* If an interrupt on the adapter did not occur, ignore it */
4218 if (unlikely((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0)) {
4219 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4226 while ((be32_to_cpu(*ioa_cfg->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
4227 ioa_cfg->toggle_bit) {
4229 cmd_index = (be32_to_cpu(*ioa_cfg->hrrq_curr) &
4230 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT;
4232 if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) {
4233 ioa_cfg->errors_logged++;
4234 dev_err(&ioa_cfg->pdev->dev, "Invalid response handle from IOA\n");
4236 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4237 ioa_cfg->sdt_state = GET_DUMP;
4239 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
4240 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4244 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
4246 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4248 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
4250 list_del(&ipr_cmd->queue);
4251 del_timer(&ipr_cmd->timer);
4252 ipr_cmd->done(ipr_cmd);
4256 if (ioa_cfg->hrrq_curr < ioa_cfg->hrrq_end) {
4257 ioa_cfg->hrrq_curr++;
4259 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
4260 ioa_cfg->toggle_bit ^= 1u;
4264 if (ipr_cmd != NULL) {
4265 /* Clear the PCI interrupt */
4266 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg);
4267 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
4272 if (unlikely(rc == IRQ_NONE))
4273 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg);
4275 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4280 * ipr_build_ioadl - Build a scatter/gather list and map the buffer
4281 * @ioa_cfg: ioa config struct
4282 * @ipr_cmd: ipr command struct
4285 * 0 on success / -1 on failure
4287 static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg,
4288 struct ipr_cmnd *ipr_cmd)
4291 struct scatterlist *sg;
4293 u32 ioadl_flags = 0;
4294 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4295 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
4296 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
4298 length = scsi_bufflen(scsi_cmd);
4302 nseg = scsi_dma_map(scsi_cmd);
4304 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
4308 ipr_cmd->dma_use_sg = nseg;
4310 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
4311 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
4312 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
4313 ioarcb->write_data_transfer_length = cpu_to_be32(length);
4314 ioarcb->write_ioadl_len =
4315 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
4316 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
4317 ioadl_flags = IPR_IOADL_FLAGS_READ;
4318 ioarcb->read_data_transfer_length = cpu_to_be32(length);
4319 ioarcb->read_ioadl_len =
4320 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
4323 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->add_data.u.ioadl)) {
4324 ioadl = ioarcb->add_data.u.ioadl;
4325 ioarcb->write_ioadl_addr =
4326 cpu_to_be32(be32_to_cpu(ioarcb->ioarcb_host_pci_addr) +
4327 offsetof(struct ipr_ioarcb, add_data));
4328 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
4331 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
4332 ioadl[i].flags_and_data_len =
4333 cpu_to_be32(ioadl_flags | sg_dma_len(sg));
4334 ioadl[i].address = cpu_to_be32(sg_dma_address(sg));
4337 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
4342 * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes
4343 * @scsi_cmd: scsi command struct
4348 static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd)
4351 u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK;
4353 if (scsi_populate_tag_msg(scsi_cmd, tag)) {
4355 case MSG_SIMPLE_TAG:
4356 rc = IPR_FLAGS_LO_SIMPLE_TASK;
4359 rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK;
4361 case MSG_ORDERED_TAG:
4362 rc = IPR_FLAGS_LO_ORDERED_TASK;
4371 * ipr_erp_done - Process completion of ERP for a device
4372 * @ipr_cmd: ipr command struct
4374 * This function copies the sense buffer into the scsi_cmd
4375 * struct and pushes the scsi_done function.
4380 static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
4382 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4383 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
4384 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4385 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4387 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
4388 scsi_cmd->result |= (DID_ERROR << 16);
4389 scmd_printk(KERN_ERR, scsi_cmd,
4390 "Request Sense failed with IOASC: 0x%08X\n", ioasc);
4392 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer,
4393 SCSI_SENSE_BUFFERSIZE);
4397 if (!ipr_is_naca_model(res))
4398 res->needs_sync_complete = 1;
4401 scsi_dma_unmap(ipr_cmd->scsi_cmd);
4402 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4403 scsi_cmd->scsi_done(scsi_cmd);
4407 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP
4408 * @ipr_cmd: ipr command struct
4413 static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
4415 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
4416 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
4417 dma_addr_t dma_addr = be32_to_cpu(ioarcb->ioarcb_host_pci_addr);
4419 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
4420 ioarcb->write_data_transfer_length = 0;
4421 ioarcb->read_data_transfer_length = 0;
4422 ioarcb->write_ioadl_len = 0;
4423 ioarcb->read_ioadl_len = 0;
4425 ioasa->residual_data_len = 0;
4426 ioarcb->write_ioadl_addr =
4427 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioadl));
4428 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
4432 * ipr_erp_request_sense - Send request sense to a device
4433 * @ipr_cmd: ipr command struct
4435 * This function sends a request sense to a device as a result
4436 * of a check condition.
4441 static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
4443 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
4444 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4446 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
4447 ipr_erp_done(ipr_cmd);
4451 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
4453 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB;
4454 cmd_pkt->cdb[0] = REQUEST_SENSE;
4455 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE;
4456 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE;
4457 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
4458 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ);
4460 ipr_cmd->ioadl[0].flags_and_data_len =
4461 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | SCSI_SENSE_BUFFERSIZE);
4462 ipr_cmd->ioadl[0].address =
4463 cpu_to_be32(ipr_cmd->sense_buffer_dma);
4465 ipr_cmd->ioarcb.read_ioadl_len =
4466 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
4467 ipr_cmd->ioarcb.read_data_transfer_length =
4468 cpu_to_be32(SCSI_SENSE_BUFFERSIZE);
4470 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout,
4471 IPR_REQUEST_SENSE_TIMEOUT * 2);
4475 * ipr_erp_cancel_all - Send cancel all to a device
4476 * @ipr_cmd: ipr command struct
4478 * This function sends a cancel all to a device to clear the
4479 * queue. If we are running TCQ on the device, QERR is set to 1,
4480 * which means all outstanding ops have been dropped on the floor.
4481 * Cancel all will return them to us.
4486 static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
4488 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4489 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
4490 struct ipr_cmd_pkt *cmd_pkt;
4494 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
4496 if (!scsi_get_tag_type(scsi_cmd->device)) {
4497 ipr_erp_request_sense(ipr_cmd);
4501 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
4502 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4503 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
4505 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout,
4506 IPR_CANCEL_ALL_TIMEOUT);
4510 * ipr_dump_ioasa - Dump contents of IOASA
4511 * @ioa_cfg: ioa config struct
4512 * @ipr_cmd: ipr command struct
4513 * @res: resource entry struct
4515 * This function is invoked by the interrupt handler when ops
4516 * fail. It will log the IOASA if appropriate. Only called
4522 static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
4523 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res)
4527 u32 ioasc, fd_ioasc;
4528 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
4529 __be32 *ioasa_data = (__be32 *)ioasa;
4532 ioasc = be32_to_cpu(ioasa->ioasc) & IPR_IOASC_IOASC_MASK;
4533 fd_ioasc = be32_to_cpu(ioasa->fd_ioasc) & IPR_IOASC_IOASC_MASK;
4538 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
4541 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc)
4542 error_index = ipr_get_error(fd_ioasc);
4544 error_index = ipr_get_error(ioasc);
4546 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) {
4547 /* Don't log an error if the IOA already logged one */
4548 if (ioasa->ilid != 0)
4551 if (!ipr_is_gscsi(res))
4554 if (ipr_error_table[error_index].log_ioasa == 0)
4558 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error);
4560 if (sizeof(struct ipr_ioasa) < be16_to_cpu(ioasa->ret_stat_len))
4561 data_len = sizeof(struct ipr_ioasa);
4563 data_len = be16_to_cpu(ioasa->ret_stat_len);
4565 ipr_err("IOASA Dump:\n");
4567 for (i = 0; i < data_len / 4; i += 4) {
4568 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
4569 be32_to_cpu(ioasa_data[i]),
4570 be32_to_cpu(ioasa_data[i+1]),
4571 be32_to_cpu(ioasa_data[i+2]),
4572 be32_to_cpu(ioasa_data[i+3]));
4577 * ipr_gen_sense - Generate SCSI sense data from an IOASA
4579 * @sense_buf: sense data buffer
4584 static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
4587 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer;
4588 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata;
4589 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
4590 u32 ioasc = be32_to_cpu(ioasa->ioasc);
4592 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
4594 if (ioasc >= IPR_FIRST_DRIVER_IOASC)
4597 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION;
4599 if (ipr_is_vset_device(res) &&
4600 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC &&
4601 ioasa->u.vset.failing_lba_hi != 0) {
4602 sense_buf[0] = 0x72;
4603 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc);
4604 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc);
4605 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc);
4609 sense_buf[9] = 0x0A;
4610 sense_buf[10] = 0x80;
4612 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi);
4614 sense_buf[12] = (failing_lba & 0xff000000) >> 24;
4615 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16;
4616 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8;
4617 sense_buf[15] = failing_lba & 0x000000ff;
4619 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
4621 sense_buf[16] = (failing_lba & 0xff000000) >> 24;
4622 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16;
4623 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8;
4624 sense_buf[19] = failing_lba & 0x000000ff;
4626 sense_buf[0] = 0x70;
4627 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc);
4628 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc);
4629 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc);
4631 /* Illegal request */
4632 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) &&
4633 (be32_to_cpu(ioasa->ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
4634 sense_buf[7] = 10; /* additional length */
4636 /* IOARCB was in error */
4637 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24)
4638 sense_buf[15] = 0xC0;
4639 else /* Parameter data was invalid */
4640 sense_buf[15] = 0x80;
4643 ((IPR_FIELD_POINTER_MASK &
4644 be32_to_cpu(ioasa->ioasc_specific)) >> 8) & 0xff;
4646 (IPR_FIELD_POINTER_MASK &
4647 be32_to_cpu(ioasa->ioasc_specific)) & 0xff;
4649 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) {
4650 if (ipr_is_vset_device(res))
4651 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
4653 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba);
4655 sense_buf[0] |= 0x80; /* Or in the Valid bit */
4656 sense_buf[3] = (failing_lba & 0xff000000) >> 24;
4657 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16;
4658 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8;
4659 sense_buf[6] = failing_lba & 0x000000ff;
4662 sense_buf[7] = 6; /* additional length */
4668 * ipr_get_autosense - Copy autosense data to sense buffer
4669 * @ipr_cmd: ipr command struct
4671 * This function copies the autosense buffer to the buffer
4672 * in the scsi_cmd, if there is autosense available.
4675 * 1 if autosense was available / 0 if not
4677 static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
4679 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
4681 if ((be32_to_cpu(ioasa->ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
4684 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
4685 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
4686 SCSI_SENSE_BUFFERSIZE));
4691 * ipr_erp_start - Process an error response for a SCSI op
4692 * @ioa_cfg: ioa config struct
4693 * @ipr_cmd: ipr command struct
4695 * This function determines whether or not to initiate ERP
4696 * on the affected device.
4701 static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
4702 struct ipr_cmnd *ipr_cmd)
4704 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4705 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
4706 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4707 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK;
4710 ipr_scsi_eh_done(ipr_cmd);
4714 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS)
4715 ipr_gen_sense(ipr_cmd);
4717 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
4719 switch (masked_ioasc) {
4720 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
4721 if (ipr_is_naca_model(res))
4722 scsi_cmd->result |= (DID_ABORT << 16);
4724 scsi_cmd->result |= (DID_IMM_RETRY << 16);
4726 case IPR_IOASC_IR_RESOURCE_HANDLE:
4727 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
4728 scsi_cmd->result |= (DID_NO_CONNECT << 16);
4730 case IPR_IOASC_HW_SEL_TIMEOUT:
4731 scsi_cmd->result |= (DID_NO_CONNECT << 16);
4732 if (!ipr_is_naca_model(res))
4733 res->needs_sync_complete = 1;
4735 case IPR_IOASC_SYNC_REQUIRED:
4737 res->needs_sync_complete = 1;
4738 scsi_cmd->result |= (DID_IMM_RETRY << 16);
4740 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
4741 case IPR_IOASA_IR_DUAL_IOA_DISABLED:
4742 scsi_cmd->result |= (DID_PASSTHROUGH << 16);
4744 case IPR_IOASC_BUS_WAS_RESET:
4745 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER:
4747 * Report the bus reset and ask for a retry. The device
4748 * will give CC/UA the next command.
4750 if (!res->resetting_device)
4751 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
4752 scsi_cmd->result |= (DID_ERROR << 16);
4753 if (!ipr_is_naca_model(res))
4754 res->needs_sync_complete = 1;
4756 case IPR_IOASC_HW_DEV_BUS_STATUS:
4757 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
4758 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
4759 if (!ipr_get_autosense(ipr_cmd)) {
4760 if (!ipr_is_naca_model(res)) {
4761 ipr_erp_cancel_all(ipr_cmd);
4766 if (!ipr_is_naca_model(res))
4767 res->needs_sync_complete = 1;
4769 case IPR_IOASC_NR_INIT_CMD_REQUIRED:
4772 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
4773 scsi_cmd->result |= (DID_ERROR << 16);
4774 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
4775 res->needs_sync_complete = 1;
4779 scsi_dma_unmap(ipr_cmd->scsi_cmd);
4780 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4781 scsi_cmd->scsi_done(scsi_cmd);
4785 * ipr_scsi_done - mid-layer done function
4786 * @ipr_cmd: ipr command struct
4788 * This function is invoked by the interrupt handler for
4789 * ops generated by the SCSI mid-layer
4794 static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
4796 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4797 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4798 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4800 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->ioasa.residual_data_len));
4802 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
4803 scsi_dma_unmap(ipr_cmd->scsi_cmd);
4804 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4805 scsi_cmd->scsi_done(scsi_cmd);
4807 ipr_erp_start(ioa_cfg, ipr_cmd);
4811 * ipr_queuecommand - Queue a mid-layer request
4812 * @scsi_cmd: scsi command struct
4813 * @done: done function
4815 * This function queues a request generated by the mid-layer.
4819 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy
4820 * SCSI_MLQUEUE_HOST_BUSY if host is busy
4822 static int ipr_queuecommand(struct scsi_cmnd *scsi_cmd,
4823 void (*done) (struct scsi_cmnd *))
4825 struct ipr_ioa_cfg *ioa_cfg;
4826 struct ipr_resource_entry *res;
4827 struct ipr_ioarcb *ioarcb;
4828 struct ipr_cmnd *ipr_cmd;
4831 scsi_cmd->scsi_done = done;
4832 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
4833 res = scsi_cmd->device->hostdata;
4834 scsi_cmd->result = (DID_OK << 16);
4837 * We are currently blocking all devices due to a host reset
4838 * We have told the host to stop giving us new requests, but
4839 * ERP ops don't count. FIXME
4841 if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead))
4842 return SCSI_MLQUEUE_HOST_BUSY;
4845 * FIXME - Create scsi_set_host_offline interface
4846 * and the ioa_is_dead check can be removed
4848 if (unlikely(ioa_cfg->ioa_is_dead || !res)) {
4849 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
4850 scsi_cmd->result = (DID_NO_CONNECT << 16);
4851 scsi_cmd->scsi_done(scsi_cmd);
4855 if (ipr_is_gata(res) && res->sata_port)
4856 return ata_sas_queuecmd(scsi_cmd, done, res->sata_port->ap);
4858 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4859 ioarcb = &ipr_cmd->ioarcb;
4860 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
4862 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len);
4863 ipr_cmd->scsi_cmd = scsi_cmd;
4864 ioarcb->res_handle = res->cfgte.res_handle;
4865 ipr_cmd->done = ipr_scsi_done;
4866 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_PHYS_LOC(res->cfgte.res_addr));
4868 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
4869 if (scsi_cmd->underflow == 0)
4870 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
4872 if (res->needs_sync_complete) {
4873 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
4874 res->needs_sync_complete = 0;
4877 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
4878 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
4879 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
4880 ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd);
4883 if (scsi_cmd->cmnd[0] >= 0xC0 &&
4884 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE))
4885 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
4887 if (likely(rc == 0))
4888 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
4890 if (likely(rc == 0)) {
4892 writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr),
4893 ioa_cfg->regs.ioarrin_reg);
4895 list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4896 return SCSI_MLQUEUE_HOST_BUSY;
4903 * ipr_ioctl - IOCTL handler
4904 * @sdev: scsi device struct
4909 * 0 on success / other on failure
4911 static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
4913 struct ipr_resource_entry *res;
4915 res = (struct ipr_resource_entry *)sdev->hostdata;
4916 if (res && ipr_is_gata(res))
4917 return ata_scsi_ioctl(sdev, cmd, arg);
4923 * ipr_info - Get information about the card/driver
4924 * @scsi_host: scsi host struct
4927 * pointer to buffer with description string
4929 static const char * ipr_ioa_info(struct Scsi_Host *host)
4931 static char buffer[512];
4932 struct ipr_ioa_cfg *ioa_cfg;
4933 unsigned long lock_flags = 0;
4935 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata;
4937 spin_lock_irqsave(host->host_lock, lock_flags);
4938 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type);
4939 spin_unlock_irqrestore(host->host_lock, lock_flags);
4944 static struct scsi_host_template driver_template = {
4945 .module = THIS_MODULE,
4947 .info = ipr_ioa_info,
4949 .queuecommand = ipr_queuecommand,
4950 .eh_abort_handler = ipr_eh_abort,
4951 .eh_device_reset_handler = ipr_eh_dev_reset,
4952 .eh_host_reset_handler = ipr_eh_host_reset,
4953 .slave_alloc = ipr_slave_alloc,
4954 .slave_configure = ipr_slave_configure,
4955 .slave_destroy = ipr_slave_destroy,
4956 .target_alloc = ipr_target_alloc,
4957 .target_destroy = ipr_target_destroy,
4958 .change_queue_depth = ipr_change_queue_depth,
4959 .change_queue_type = ipr_change_queue_type,
4960 .bios_param = ipr_biosparam,
4961 .can_queue = IPR_MAX_COMMANDS,
4963 .sg_tablesize = IPR_MAX_SGLIST,
4964 .max_sectors = IPR_IOA_MAX_SECTORS,
4965 .cmd_per_lun = IPR_MAX_CMD_PER_LUN,
4966 .use_clustering = ENABLE_CLUSTERING,
4967 .shost_attrs = ipr_ioa_attrs,
4968 .sdev_attrs = ipr_dev_attrs,
4969 .proc_name = IPR_NAME
4973 * ipr_ata_phy_reset - libata phy_reset handler
4974 * @ap: ata port to reset
4977 static void ipr_ata_phy_reset(struct ata_port *ap)
4979 unsigned long flags;
4980 struct ipr_sata_port *sata_port = ap->private_data;
4981 struct ipr_resource_entry *res = sata_port->res;
4982 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
4986 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
4987 while(ioa_cfg->in_reset_reload) {
4988 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
4989 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4990 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
4993 if (!ioa_cfg->allow_cmds)
4996 rc = ipr_device_reset(ioa_cfg, res);
4999 ata_port_disable(ap);
5003 switch(res->cfgte.proto) {
5004 case IPR_PROTO_SATA:
5005 case IPR_PROTO_SAS_STP:
5006 ap->link.device[0].class = ATA_DEV_ATA;
5008 case IPR_PROTO_SATA_ATAPI:
5009 case IPR_PROTO_SAS_STP_ATAPI:
5010 ap->link.device[0].class = ATA_DEV_ATAPI;
5013 ap->link.device[0].class = ATA_DEV_UNKNOWN;
5014 ata_port_disable(ap);
5019 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5024 * ipr_ata_post_internal - Cleanup after an internal command
5025 * @qc: ATA queued command
5030 static void ipr_ata_post_internal(struct ata_queued_cmd *qc)
5032 struct ipr_sata_port *sata_port = qc->ap->private_data;
5033 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5034 struct ipr_cmnd *ipr_cmd;
5035 unsigned long flags;
5037 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5038 while(ioa_cfg->in_reset_reload) {
5039 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5040 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5041 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5044 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
5045 if (ipr_cmd->qc == qc) {
5046 ipr_device_reset(ioa_cfg, sata_port->res);
5050 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5054 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure
5055 * @regs: destination
5056 * @tf: source ATA taskfile
5061 static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs,
5062 struct ata_taskfile *tf)
5064 regs->feature = tf->feature;
5065 regs->nsect = tf->nsect;
5066 regs->lbal = tf->lbal;
5067 regs->lbam = tf->lbam;
5068 regs->lbah = tf->lbah;
5069 regs->device = tf->device;
5070 regs->command = tf->command;
5071 regs->hob_feature = tf->hob_feature;
5072 regs->hob_nsect = tf->hob_nsect;
5073 regs->hob_lbal = tf->hob_lbal;
5074 regs->hob_lbam = tf->hob_lbam;
5075 regs->hob_lbah = tf->hob_lbah;
5076 regs->ctl = tf->ctl;
5080 * ipr_sata_done - done function for SATA commands
5081 * @ipr_cmd: ipr command struct
5083 * This function is invoked by the interrupt handler for
5084 * ops generated by the SCSI mid-layer to SATA devices
5089 static void ipr_sata_done(struct ipr_cmnd *ipr_cmd)
5091 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5092 struct ata_queued_cmd *qc = ipr_cmd->qc;
5093 struct ipr_sata_port *sata_port = qc->ap->private_data;
5094 struct ipr_resource_entry *res = sata_port->res;
5095 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
5097 memcpy(&sata_port->ioasa, &ipr_cmd->ioasa.u.gata,
5098 sizeof(struct ipr_ioasa_gata));
5099 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
5101 if (be32_to_cpu(ipr_cmd->ioasa.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
5102 scsi_report_device_reset(ioa_cfg->host, res->cfgte.res_addr.bus,
5103 res->cfgte.res_addr.target);
5105 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
5106 qc->err_mask |= __ac_err_mask(ipr_cmd->ioasa.u.gata.status);
5108 qc->err_mask |= ac_err_mask(ipr_cmd->ioasa.u.gata.status);
5109 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5110 ata_qc_complete(qc);
5114 * ipr_build_ata_ioadl - Build an ATA scatter/gather list
5115 * @ipr_cmd: ipr command struct
5116 * @qc: ATA queued command
5119 static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
5120 struct ata_queued_cmd *qc)
5122 u32 ioadl_flags = 0;
5123 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5124 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
5125 struct ipr_ioadl_desc *last_ioadl = NULL;
5126 int len = qc->nbytes;
5127 struct scatterlist *sg;
5133 if (qc->dma_dir == DMA_TO_DEVICE) {
5134 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5135 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5136 ioarcb->write_data_transfer_length = cpu_to_be32(len);
5137 ioarcb->write_ioadl_len =
5138 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5139 } else if (qc->dma_dir == DMA_FROM_DEVICE) {
5140 ioadl_flags = IPR_IOADL_FLAGS_READ;
5141 ioarcb->read_data_transfer_length = cpu_to_be32(len);
5142 ioarcb->read_ioadl_len =
5143 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5146 for_each_sg(qc->sg, sg, qc->n_elem, si) {
5147 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
5148 ioadl->address = cpu_to_be32(sg_dma_address(sg));
5154 if (likely(last_ioadl))
5155 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5159 * ipr_qc_issue - Issue a SATA qc to a device
5160 * @qc: queued command
5165 static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc)
5167 struct ata_port *ap = qc->ap;
5168 struct ipr_sata_port *sata_port = ap->private_data;
5169 struct ipr_resource_entry *res = sata_port->res;
5170 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5171 struct ipr_cmnd *ipr_cmd;
5172 struct ipr_ioarcb *ioarcb;
5173 struct ipr_ioarcb_ata_regs *regs;
5175 if (unlikely(!ioa_cfg->allow_cmds || ioa_cfg->ioa_is_dead))
5176 return AC_ERR_SYSTEM;
5178 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5179 ioarcb = &ipr_cmd->ioarcb;
5180 regs = &ioarcb->add_data.u.regs;
5182 memset(&ioarcb->add_data, 0, sizeof(ioarcb->add_data));
5183 ioarcb->add_cmd_parms_len = cpu_to_be32(sizeof(ioarcb->add_data.u.regs));
5185 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
5187 ipr_cmd->done = ipr_sata_done;
5188 ipr_cmd->ioarcb.res_handle = res->cfgte.res_handle;
5189 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU;
5190 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
5191 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5192 ipr_cmd->dma_use_sg = qc->n_elem;
5194 ipr_build_ata_ioadl(ipr_cmd, qc);
5195 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
5196 ipr_copy_sata_tf(regs, &qc->tf);
5197 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN);
5198 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_PHYS_LOC(res->cfgte.res_addr));
5200 switch (qc->tf.protocol) {
5201 case ATA_PROT_NODATA:
5206 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
5209 case ATAPI_PROT_PIO:
5210 case ATAPI_PROT_NODATA:
5211 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
5214 case ATAPI_PROT_DMA:
5215 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
5216 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
5221 return AC_ERR_INVALID;
5225 writel(be32_to_cpu(ioarcb->ioarcb_host_pci_addr),
5226 ioa_cfg->regs.ioarrin_reg);
5231 * ipr_qc_fill_rtf - Read result TF
5232 * @qc: ATA queued command
5237 static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc)
5239 struct ipr_sata_port *sata_port = qc->ap->private_data;
5240 struct ipr_ioasa_gata *g = &sata_port->ioasa;
5241 struct ata_taskfile *tf = &qc->result_tf;
5243 tf->feature = g->error;
5244 tf->nsect = g->nsect;
5248 tf->device = g->device;
5249 tf->command = g->status;
5250 tf->hob_nsect = g->hob_nsect;
5251 tf->hob_lbal = g->hob_lbal;
5252 tf->hob_lbam = g->hob_lbam;
5253 tf->hob_lbah = g->hob_lbah;
5254 tf->ctl = g->alt_status;
5259 static struct ata_port_operations ipr_sata_ops = {
5260 .phy_reset = ipr_ata_phy_reset,
5261 .hardreset = ipr_sata_reset,
5262 .post_internal_cmd = ipr_ata_post_internal,
5263 .qc_prep = ata_noop_qc_prep,
5264 .qc_issue = ipr_qc_issue,
5265 .qc_fill_rtf = ipr_qc_fill_rtf,
5266 .port_start = ata_sas_port_start,
5267 .port_stop = ata_sas_port_stop
5270 static struct ata_port_info sata_port_info = {
5271 .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | ATA_FLAG_SATA_RESET |
5272 ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA,
5273 .pio_mask = 0x10, /* pio4 */
5275 .udma_mask = 0x7f, /* udma0-6 */
5276 .port_ops = &ipr_sata_ops
5279 #ifdef CONFIG_PPC_PSERIES
5280 static const u16 ipr_blocked_processors[] = {
5292 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware
5293 * @ioa_cfg: ioa cfg struct
5295 * Adapters that use Gemstone revision < 3.1 do not work reliably on
5296 * certain pSeries hardware. This function determines if the given
5297 * adapter is in one of these confgurations or not.
5300 * 1 if adapter is not supported / 0 if adapter is supported
5302 static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
5306 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) {
5307 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){
5308 if (__is_processor(ipr_blocked_processors[i]))
5315 #define ipr_invalid_adapter(ioa_cfg) 0
5319 * ipr_ioa_bringdown_done - IOA bring down completion.
5320 * @ipr_cmd: ipr command struct
5322 * This function processes the completion of an adapter bring down.
5323 * It wakes any reset sleepers.
5328 static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd)
5330 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5333 ioa_cfg->in_reset_reload = 0;
5334 ioa_cfg->reset_retries = 0;
5335 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5336 wake_up_all(&ioa_cfg->reset_wait_q);
5338 spin_unlock_irq(ioa_cfg->host->host_lock);
5339 scsi_unblock_requests(ioa_cfg->host);
5340 spin_lock_irq(ioa_cfg->host->host_lock);
5343 return IPR_RC_JOB_RETURN;
5347 * ipr_ioa_reset_done - IOA reset completion.
5348 * @ipr_cmd: ipr command struct
5350 * This function processes the completion of an adapter reset.
5351 * It schedules any necessary mid-layer add/removes and
5352 * wakes any reset sleepers.
5357 static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
5359 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5360 struct ipr_resource_entry *res;
5361 struct ipr_hostrcb *hostrcb, *temp;
5365 ioa_cfg->in_reset_reload = 0;
5366 ioa_cfg->allow_cmds = 1;
5367 ioa_cfg->reset_cmd = NULL;
5368 ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
5370 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
5371 if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) {
5376 schedule_work(&ioa_cfg->work_q);
5378 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) {
5379 list_del(&hostrcb->queue);
5380 if (i++ < IPR_NUM_LOG_HCAMS)
5381 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
5383 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
5386 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS);
5387 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n");
5389 ioa_cfg->reset_retries = 0;
5390 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5391 wake_up_all(&ioa_cfg->reset_wait_q);
5393 spin_unlock_irq(ioa_cfg->host->host_lock);
5394 scsi_unblock_requests(ioa_cfg->host);
5395 spin_lock_irq(ioa_cfg->host->host_lock);
5397 if (!ioa_cfg->allow_cmds)
5398 scsi_block_requests(ioa_cfg->host);
5401 return IPR_RC_JOB_RETURN;
5405 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer
5406 * @supported_dev: supported device struct
5407 * @vpids: vendor product id struct
5412 static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev,
5413 struct ipr_std_inq_vpids *vpids)
5415 memset(supported_dev, 0, sizeof(struct ipr_supported_device));
5416 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids));
5417 supported_dev->num_records = 1;
5418 supported_dev->data_length =
5419 cpu_to_be16(sizeof(struct ipr_supported_device));
5420 supported_dev->reserved = 0;
5424 * ipr_set_supported_devs - Send Set Supported Devices for a device
5425 * @ipr_cmd: ipr command struct
5427 * This function send a Set Supported Devices to the adapter
5430 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
5432 static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
5434 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5435 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev;
5436 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
5437 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5438 struct ipr_resource_entry *res = ipr_cmd->u.res;
5440 ipr_cmd->job_step = ipr_ioa_reset_done;
5442 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
5443 if (!ipr_is_scsi_disk(res))
5446 ipr_cmd->u.res = res;
5447 ipr_set_sup_dev_dflt(supp_dev, &res->cfgte.std_inq_data.vpids);
5449 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
5450 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5451 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
5453 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES;
5454 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff;
5455 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff;
5457 ioadl->flags_and_data_len = cpu_to_be32(IPR_IOADL_FLAGS_WRITE_LAST |
5458 sizeof(struct ipr_supported_device));
5459 ioadl->address = cpu_to_be32(ioa_cfg->vpd_cbs_dma +
5460 offsetof(struct ipr_misc_cbs, supp_dev));
5461 ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
5462 ioarcb->write_data_transfer_length =
5463 cpu_to_be32(sizeof(struct ipr_supported_device));
5465 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
5466 IPR_SET_SUP_DEVICE_TIMEOUT);
5468 ipr_cmd->job_step = ipr_set_supported_devs;
5469 return IPR_RC_JOB_RETURN;
5472 return IPR_RC_JOB_CONTINUE;
5476 * ipr_setup_write_cache - Disable write cache if needed
5477 * @ipr_cmd: ipr command struct
5479 * This function sets up adapters write cache to desired setting
5482 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
5484 static int ipr_setup_write_cache(struct ipr_cmnd *ipr_cmd)
5486 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5488 ipr_cmd->job_step = ipr_set_supported_devs;
5489 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
5490 struct ipr_resource_entry, queue);
5492 if (ioa_cfg->cache_state != CACHE_DISABLED)
5493 return IPR_RC_JOB_CONTINUE;
5495 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
5496 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
5497 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
5498 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL;
5500 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
5502 return IPR_RC_JOB_RETURN;
5506 * ipr_get_mode_page - Locate specified mode page
5507 * @mode_pages: mode page buffer
5508 * @page_code: page code to find
5509 * @len: minimum required length for mode page
5512 * pointer to mode page / NULL on failure
5514 static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages,
5515 u32 page_code, u32 len)
5517 struct ipr_mode_page_hdr *mode_hdr;
5521 if (!mode_pages || (mode_pages->hdr.length == 0))
5524 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len;
5525 mode_hdr = (struct ipr_mode_page_hdr *)
5526 (mode_pages->data + mode_pages->hdr.block_desc_len);
5529 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) {
5530 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr)))
5534 page_length = (sizeof(struct ipr_mode_page_hdr) +
5535 mode_hdr->page_length);
5536 length -= page_length;
5537 mode_hdr = (struct ipr_mode_page_hdr *)
5538 ((unsigned long)mode_hdr + page_length);
5545 * ipr_check_term_power - Check for term power errors
5546 * @ioa_cfg: ioa config struct
5547 * @mode_pages: IOAFP mode pages buffer
5549 * Check the IOAFP's mode page 28 for term power errors
5554 static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg,
5555 struct ipr_mode_pages *mode_pages)
5559 struct ipr_dev_bus_entry *bus;
5560 struct ipr_mode_page28 *mode_page;
5562 mode_page = ipr_get_mode_page(mode_pages, 0x28,
5563 sizeof(struct ipr_mode_page28));
5565 entry_length = mode_page->entry_length;
5567 bus = mode_page->bus;
5569 for (i = 0; i < mode_page->num_entries; i++) {
5570 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) {
5571 dev_err(&ioa_cfg->pdev->dev,
5572 "Term power is absent on scsi bus %d\n",
5576 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length);
5581 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table
5582 * @ioa_cfg: ioa config struct
5584 * Looks through the config table checking for SES devices. If
5585 * the SES device is in the SES table indicating a maximum SCSI
5586 * bus speed, the speed is limited for the bus.
5591 static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg)
5596 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
5597 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i,
5598 ioa_cfg->bus_attr[i].bus_width);
5600 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate)
5601 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate;
5606 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28
5607 * @ioa_cfg: ioa config struct
5608 * @mode_pages: mode page 28 buffer
5610 * Updates mode page 28 based on driver configuration
5615 static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg,
5616 struct ipr_mode_pages *mode_pages)
5618 int i, entry_length;
5619 struct ipr_dev_bus_entry *bus;
5620 struct ipr_bus_attributes *bus_attr;
5621 struct ipr_mode_page28 *mode_page;
5623 mode_page = ipr_get_mode_page(mode_pages, 0x28,
5624 sizeof(struct ipr_mode_page28));
5626 entry_length = mode_page->entry_length;
5628 /* Loop for each device bus entry */
5629 for (i = 0, bus = mode_page->bus;
5630 i < mode_page->num_entries;
5631 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) {
5632 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) {
5633 dev_err(&ioa_cfg->pdev->dev,
5634 "Invalid resource address reported: 0x%08X\n",
5635 IPR_GET_PHYS_LOC(bus->res_addr));
5639 bus_attr = &ioa_cfg->bus_attr[i];
5640 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY;
5641 bus->bus_width = bus_attr->bus_width;
5642 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate);
5643 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK;
5644 if (bus_attr->qas_enabled)
5645 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS;
5647 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS;
5652 * ipr_build_mode_select - Build a mode select command
5653 * @ipr_cmd: ipr command struct
5654 * @res_handle: resource handle to send command to
5655 * @parm: Byte 2 of Mode Sense command
5656 * @dma_addr: DMA buffer address
5657 * @xfer_len: data transfer length
5662 static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd,
5663 __be32 res_handle, u8 parm, u32 dma_addr,
5666 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
5667 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5669 ioarcb->res_handle = res_handle;
5670 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
5671 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5672 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT;
5673 ioarcb->cmd_pkt.cdb[1] = parm;
5674 ioarcb->cmd_pkt.cdb[4] = xfer_len;
5676 ioadl->flags_and_data_len =
5677 cpu_to_be32(IPR_IOADL_FLAGS_WRITE_LAST | xfer_len);
5678 ioadl->address = cpu_to_be32(dma_addr);
5679 ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
5680 ioarcb->write_data_transfer_length = cpu_to_be32(xfer_len);
5684 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA
5685 * @ipr_cmd: ipr command struct
5687 * This function sets up the SCSI bus attributes and sends
5688 * a Mode Select for Page 28 to activate them.
5693 static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
5695 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5696 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
5700 ipr_scsi_bus_speed_limit(ioa_cfg);
5701 ipr_check_term_power(ioa_cfg, mode_pages);
5702 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages);
5703 length = mode_pages->hdr.length + 1;
5704 mode_pages->hdr.length = 0;
5706 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
5707 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
5710 ipr_cmd->job_step = ipr_setup_write_cache;
5711 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
5714 return IPR_RC_JOB_RETURN;
5718 * ipr_build_mode_sense - Builds a mode sense command
5719 * @ipr_cmd: ipr command struct
5720 * @res: resource entry struct
5721 * @parm: Byte 2 of mode sense command
5722 * @dma_addr: DMA address of mode sense buffer
5723 * @xfer_len: Size of DMA buffer
5728 static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
5730 u8 parm, u32 dma_addr, u8 xfer_len)
5732 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
5733 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5735 ioarcb->res_handle = res_handle;
5736 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE;
5737 ioarcb->cmd_pkt.cdb[2] = parm;
5738 ioarcb->cmd_pkt.cdb[4] = xfer_len;
5739 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
5741 ioadl->flags_and_data_len =
5742 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | xfer_len);
5743 ioadl->address = cpu_to_be32(dma_addr);
5744 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
5745 ioarcb->read_data_transfer_length = cpu_to_be32(xfer_len);
5749 * ipr_reset_cmd_failed - Handle failure of IOA reset command
5750 * @ipr_cmd: ipr command struct
5752 * This function handles the failure of an IOA bringup command.
5757 static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
5759 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5760 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
5762 dev_err(&ioa_cfg->pdev->dev,
5763 "0x%02X failed with IOASC: 0x%08X\n",
5764 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
5766 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5767 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5768 return IPR_RC_JOB_RETURN;
5772 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
5773 * @ipr_cmd: ipr command struct
5775 * This function handles the failure of a Mode Sense to the IOAFP.
5776 * Some adapters do not handle all mode pages.
5779 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
5781 static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
5783 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
5785 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
5786 ipr_cmd->job_step = ipr_setup_write_cache;
5787 return IPR_RC_JOB_CONTINUE;
5790 return ipr_reset_cmd_failed(ipr_cmd);
5794 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
5795 * @ipr_cmd: ipr command struct
5797 * This function send a Page 28 mode sense to the IOA to
5798 * retrieve SCSI bus attributes.
5803 static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
5805 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5808 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
5809 0x28, ioa_cfg->vpd_cbs_dma +
5810 offsetof(struct ipr_misc_cbs, mode_pages),
5811 sizeof(struct ipr_mode_pages));
5813 ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
5814 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed;
5816 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
5819 return IPR_RC_JOB_RETURN;
5823 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA
5824 * @ipr_cmd: ipr command struct
5826 * This function enables dual IOA RAID support if possible.
5831 static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd)
5833 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5834 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
5835 struct ipr_mode_page24 *mode_page;
5839 mode_page = ipr_get_mode_page(mode_pages, 0x24,
5840 sizeof(struct ipr_mode_page24));
5843 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF;
5845 length = mode_pages->hdr.length + 1;
5846 mode_pages->hdr.length = 0;
5848 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
5849 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
5852 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
5853 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
5856 return IPR_RC_JOB_RETURN;
5860 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense
5861 * @ipr_cmd: ipr command struct
5863 * This function handles the failure of a Mode Sense to the IOAFP.
5864 * Some adapters do not handle all mode pages.
5867 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
5869 static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd)
5871 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
5873 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
5874 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
5875 return IPR_RC_JOB_CONTINUE;
5878 return ipr_reset_cmd_failed(ipr_cmd);
5882 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA
5883 * @ipr_cmd: ipr command struct
5885 * This function send a mode sense to the IOA to retrieve
5886 * the IOA Advanced Function Control mode page.
5891 static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd)
5893 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5896 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
5897 0x24, ioa_cfg->vpd_cbs_dma +
5898 offsetof(struct ipr_misc_cbs, mode_pages),
5899 sizeof(struct ipr_mode_pages));
5901 ipr_cmd->job_step = ipr_ioafp_mode_select_page24;
5902 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed;
5904 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
5907 return IPR_RC_JOB_RETURN;
5911 * ipr_init_res_table - Initialize the resource table
5912 * @ipr_cmd: ipr command struct
5914 * This function looks through the existing resource table, comparing
5915 * it with the config table. This function will take care of old/new
5916 * devices and schedule adding/removing them from the mid-layer
5920 * IPR_RC_JOB_CONTINUE
5922 static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
5924 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5925 struct ipr_resource_entry *res, *temp;
5926 struct ipr_config_table_entry *cfgte;
5931 if (ioa_cfg->cfg_table->hdr.flags & IPR_UCODE_DOWNLOAD_REQ)
5932 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n");
5934 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue)
5935 list_move_tail(&res->queue, &old_res);
5937 for (i = 0; i < ioa_cfg->cfg_table->hdr.num_entries; i++) {
5938 cfgte = &ioa_cfg->cfg_table->dev[i];
5941 list_for_each_entry_safe(res, temp, &old_res, queue) {
5942 if (!memcmp(&res->cfgte.res_addr,
5943 &cfgte->res_addr, sizeof(cfgte->res_addr))) {
5944 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
5951 if (list_empty(&ioa_cfg->free_res_q)) {
5952 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n");
5957 res = list_entry(ioa_cfg->free_res_q.next,
5958 struct ipr_resource_entry, queue);
5959 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
5960 ipr_init_res_entry(res);
5965 memcpy(&res->cfgte, cfgte, sizeof(struct ipr_config_table_entry));
5968 list_for_each_entry_safe(res, temp, &old_res, queue) {
5970 res->del_from_ml = 1;
5971 res->cfgte.res_handle = IPR_INVALID_RES_HANDLE;
5972 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
5974 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
5978 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
5979 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24;
5981 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
5984 return IPR_RC_JOB_CONTINUE;
5988 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter.
5989 * @ipr_cmd: ipr command struct
5991 * This function sends a Query IOA Configuration command
5992 * to the adapter to retrieve the IOA configuration table.
5997 static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd)
5999 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6000 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6001 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
6002 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
6003 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
6006 if (cap->cap & IPR_CAP_DUAL_IOA_RAID)
6007 ioa_cfg->dual_raid = 1;
6008 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n",
6009 ucode_vpd->major_release, ucode_vpd->card_type,
6010 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]);
6011 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6012 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6014 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG;
6015 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_config_table) >> 8) & 0xff;
6016 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_config_table) & 0xff;
6018 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
6019 ioarcb->read_data_transfer_length =
6020 cpu_to_be32(sizeof(struct ipr_config_table));
6022 ioadl->address = cpu_to_be32(ioa_cfg->cfg_table_dma);
6023 ioadl->flags_and_data_len =
6024 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | sizeof(struct ipr_config_table));
6026 ipr_cmd->job_step = ipr_init_res_table;
6028 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6031 return IPR_RC_JOB_RETURN;
6035 * ipr_ioafp_inquiry - Send an Inquiry to the adapter.
6036 * @ipr_cmd: ipr command struct
6038 * This utility function sends an inquiry to the adapter.
6043 static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
6044 u32 dma_addr, u8 xfer_len)
6046 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6047 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
6050 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6051 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6053 ioarcb->cmd_pkt.cdb[0] = INQUIRY;
6054 ioarcb->cmd_pkt.cdb[1] = flags;
6055 ioarcb->cmd_pkt.cdb[2] = page;
6056 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6058 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
6059 ioarcb->read_data_transfer_length = cpu_to_be32(xfer_len);
6061 ioadl->address = cpu_to_be32(dma_addr);
6062 ioadl->flags_and_data_len =
6063 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | xfer_len);
6065 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6070 * ipr_inquiry_page_supported - Is the given inquiry page supported
6071 * @page0: inquiry page 0 buffer
6074 * This function determines if the specified inquiry page is supported.
6077 * 1 if page is supported / 0 if not
6079 static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page)
6083 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++)
6084 if (page0->page[i] == page)
6091 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter.
6092 * @ipr_cmd: ipr command struct
6094 * This function sends a Page 0xD0 inquiry to the adapter
6095 * to retrieve adapter capabilities.
6098 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6100 static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd)
6102 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6103 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
6104 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
6107 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
6108 memset(cap, 0, sizeof(*cap));
6110 if (ipr_inquiry_page_supported(page0, 0xD0)) {
6111 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0,
6112 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap),
6113 sizeof(struct ipr_inquiry_cap));
6114 return IPR_RC_JOB_RETURN;
6118 return IPR_RC_JOB_CONTINUE;
6122 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
6123 * @ipr_cmd: ipr command struct
6125 * This function sends a Page 3 inquiry to the adapter
6126 * to retrieve software VPD information.
6129 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6131 static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
6133 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6134 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
6138 if (!ipr_inquiry_page_supported(page0, 1))
6139 ioa_cfg->cache_state = CACHE_NONE;
6141 ipr_cmd->job_step = ipr_ioafp_cap_inquiry;
6143 ipr_ioafp_inquiry(ipr_cmd, 1, 3,
6144 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
6145 sizeof(struct ipr_inquiry_page3));
6148 return IPR_RC_JOB_RETURN;
6152 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
6153 * @ipr_cmd: ipr command struct
6155 * This function sends a Page 0 inquiry to the adapter
6156 * to retrieve supported inquiry pages.
6159 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6161 static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
6163 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6168 /* Grab the type out of the VPD and store it away */
6169 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4);
6171 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
6173 ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
6175 ipr_ioafp_inquiry(ipr_cmd, 1, 0,
6176 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data),
6177 sizeof(struct ipr_inquiry_page0));
6180 return IPR_RC_JOB_RETURN;
6184 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter.
6185 * @ipr_cmd: ipr command struct
6187 * This function sends a standard inquiry to the adapter.
6192 static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
6194 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6197 ipr_cmd->job_step = ipr_ioafp_page0_inquiry;
6199 ipr_ioafp_inquiry(ipr_cmd, 0, 0,
6200 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
6201 sizeof(struct ipr_ioa_vpd));
6204 return IPR_RC_JOB_RETURN;
6208 * ipr_ioafp_indentify_hrrq - Send Identify Host RRQ.
6209 * @ipr_cmd: ipr command struct
6211 * This function send an Identify Host Request Response Queue
6212 * command to establish the HRRQ with the adapter.
6217 static int ipr_ioafp_indentify_hrrq(struct ipr_cmnd *ipr_cmd)
6219 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6220 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6223 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
6225 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q;
6226 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6228 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6229 ioarcb->cmd_pkt.cdb[2] =
6230 ((u32) ioa_cfg->host_rrq_dma >> 24) & 0xff;
6231 ioarcb->cmd_pkt.cdb[3] =
6232 ((u32) ioa_cfg->host_rrq_dma >> 16) & 0xff;
6233 ioarcb->cmd_pkt.cdb[4] =
6234 ((u32) ioa_cfg->host_rrq_dma >> 8) & 0xff;
6235 ioarcb->cmd_pkt.cdb[5] =
6236 ((u32) ioa_cfg->host_rrq_dma) & 0xff;
6237 ioarcb->cmd_pkt.cdb[7] =
6238 ((sizeof(u32) * IPR_NUM_CMD_BLKS) >> 8) & 0xff;
6239 ioarcb->cmd_pkt.cdb[8] =
6240 (sizeof(u32) * IPR_NUM_CMD_BLKS) & 0xff;
6242 ipr_cmd->job_step = ipr_ioafp_std_inquiry;
6244 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6247 return IPR_RC_JOB_RETURN;
6251 * ipr_reset_timer_done - Adapter reset timer function
6252 * @ipr_cmd: ipr command struct
6254 * Description: This function is used in adapter reset processing
6255 * for timing events. If the reset_cmd pointer in the IOA
6256 * config struct is not this adapter's we are doing nested
6257 * resets and fail_all_ops will take care of freeing the
6263 static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd)
6265 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6266 unsigned long lock_flags = 0;
6268 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
6270 if (ioa_cfg->reset_cmd == ipr_cmd) {
6271 list_del(&ipr_cmd->queue);
6272 ipr_cmd->done(ipr_cmd);
6275 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
6279 * ipr_reset_start_timer - Start a timer for adapter reset job
6280 * @ipr_cmd: ipr command struct
6281 * @timeout: timeout value
6283 * Description: This function is used in adapter reset processing
6284 * for timing events. If the reset_cmd pointer in the IOA
6285 * config struct is not this adapter's we are doing nested
6286 * resets and fail_all_ops will take care of freeing the
6292 static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
6293 unsigned long timeout)
6295 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
6296 ipr_cmd->done = ipr_reset_ioa_job;
6298 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
6299 ipr_cmd->timer.expires = jiffies + timeout;
6300 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done;
6301 add_timer(&ipr_cmd->timer);
6305 * ipr_init_ioa_mem - Initialize ioa_cfg control block
6306 * @ioa_cfg: ioa cfg struct
6311 static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg)
6313 memset(ioa_cfg->host_rrq, 0, sizeof(u32) * IPR_NUM_CMD_BLKS);
6315 /* Initialize Host RRQ pointers */
6316 ioa_cfg->hrrq_start = ioa_cfg->host_rrq;
6317 ioa_cfg->hrrq_end = &ioa_cfg->host_rrq[IPR_NUM_CMD_BLKS - 1];
6318 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
6319 ioa_cfg->toggle_bit = 1;
6321 /* Zero out config table */
6322 memset(ioa_cfg->cfg_table, 0, sizeof(struct ipr_config_table));
6326 * ipr_reset_enable_ioa - Enable the IOA following a reset.
6327 * @ipr_cmd: ipr command struct
6329 * This function reinitializes some control blocks and
6330 * enables destructive diagnostics on the adapter.
6335 static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
6337 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6338 volatile u32 int_reg;
6341 ipr_cmd->job_step = ipr_ioafp_indentify_hrrq;
6342 ipr_init_ioa_mem(ioa_cfg);
6344 ioa_cfg->allow_interrupts = 1;
6345 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
6347 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
6348 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED),
6349 ioa_cfg->regs.clr_interrupt_mask_reg);
6350 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
6351 return IPR_RC_JOB_CONTINUE;
6354 /* Enable destructive diagnostics on IOA */
6355 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg);
6357 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg);
6358 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
6360 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n");
6362 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
6363 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
6364 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
6365 ipr_cmd->done = ipr_reset_ioa_job;
6366 add_timer(&ipr_cmd->timer);
6367 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
6370 return IPR_RC_JOB_RETURN;
6374 * ipr_reset_wait_for_dump - Wait for a dump to timeout.
6375 * @ipr_cmd: ipr command struct
6377 * This function is invoked when an adapter dump has run out
6378 * of processing time.
6381 * IPR_RC_JOB_CONTINUE
6383 static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd)
6385 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6387 if (ioa_cfg->sdt_state == GET_DUMP)
6388 ioa_cfg->sdt_state = ABORT_DUMP;
6390 ipr_cmd->job_step = ipr_reset_alert;
6392 return IPR_RC_JOB_CONTINUE;
6396 * ipr_unit_check_no_data - Log a unit check/no data error log
6397 * @ioa_cfg: ioa config struct
6399 * Logs an error indicating the adapter unit checked, but for some
6400 * reason, we were unable to fetch the unit check buffer.
6405 static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg)
6407 ioa_cfg->errors_logged++;
6408 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n");
6412 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA
6413 * @ioa_cfg: ioa config struct
6415 * Fetches the unit check buffer from the adapter by clocking the data
6416 * through the mailbox register.
6421 static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
6423 unsigned long mailbox;
6424 struct ipr_hostrcb *hostrcb;
6425 struct ipr_uc_sdt sdt;
6429 mailbox = readl(ioa_cfg->ioa_mailbox);
6431 if (!ipr_sdt_is_fmt2(mailbox)) {
6432 ipr_unit_check_no_data(ioa_cfg);
6436 memset(&sdt, 0, sizeof(struct ipr_uc_sdt));
6437 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt,
6438 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32));
6440 if (rc || (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE) ||
6441 !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY)) {
6442 ipr_unit_check_no_data(ioa_cfg);
6446 /* Find length of the first sdt entry (UC buffer) */
6447 length = (be32_to_cpu(sdt.entry[0].end_offset) -
6448 be32_to_cpu(sdt.entry[0].bar_str_offset)) & IPR_FMT2_MBX_ADDR_MASK;
6450 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next,
6451 struct ipr_hostrcb, queue);
6452 list_del(&hostrcb->queue);
6453 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam));
6455 rc = ipr_get_ldump_data_section(ioa_cfg,
6456 be32_to_cpu(sdt.entry[0].bar_str_offset),
6457 (__be32 *)&hostrcb->hcam,
6458 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32));
6461 ipr_handle_log_data(ioa_cfg, hostrcb);
6462 ioasc = be32_to_cpu(hostrcb->hcam.u.error.failing_dev_ioasc);
6463 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED &&
6464 ioa_cfg->sdt_state == GET_DUMP)
6465 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
6467 ipr_unit_check_no_data(ioa_cfg);
6469 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
6473 * ipr_reset_restore_cfg_space - Restore PCI config space.
6474 * @ipr_cmd: ipr command struct
6476 * Description: This function restores the saved PCI config space of
6477 * the adapter, fails all outstanding ops back to the callers, and
6478 * fetches the dump/unit check if applicable to this reset.
6481 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6483 static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
6485 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6489 rc = pci_restore_state(ioa_cfg->pdev);
6491 if (rc != PCIBIOS_SUCCESSFUL) {
6492 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
6493 return IPR_RC_JOB_CONTINUE;
6496 if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
6497 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
6498 return IPR_RC_JOB_CONTINUE;
6501 ipr_fail_all_ops(ioa_cfg);
6503 if (ioa_cfg->ioa_unit_checked) {
6504 ioa_cfg->ioa_unit_checked = 0;
6505 ipr_get_unit_check_buffer(ioa_cfg);
6506 ipr_cmd->job_step = ipr_reset_alert;
6507 ipr_reset_start_timer(ipr_cmd, 0);
6508 return IPR_RC_JOB_RETURN;
6511 if (ioa_cfg->in_ioa_bringdown) {
6512 ipr_cmd->job_step = ipr_ioa_bringdown_done;
6514 ipr_cmd->job_step = ipr_reset_enable_ioa;
6516 if (GET_DUMP == ioa_cfg->sdt_state) {
6517 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_TIMEOUT);
6518 ipr_cmd->job_step = ipr_reset_wait_for_dump;
6519 schedule_work(&ioa_cfg->work_q);
6520 return IPR_RC_JOB_RETURN;
6525 return IPR_RC_JOB_CONTINUE;
6529 * ipr_reset_bist_done - BIST has completed on the adapter.
6530 * @ipr_cmd: ipr command struct
6532 * Description: Unblock config space and resume the reset process.
6535 * IPR_RC_JOB_CONTINUE
6537 static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd)
6540 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev);
6541 ipr_cmd->job_step = ipr_reset_restore_cfg_space;
6543 return IPR_RC_JOB_CONTINUE;
6547 * ipr_reset_start_bist - Run BIST on the adapter.
6548 * @ipr_cmd: ipr command struct
6550 * Description: This function runs BIST on the adapter, then delays 2 seconds.
6553 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6555 static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
6557 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6561 pci_block_user_cfg_access(ioa_cfg->pdev);
6562 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START);
6564 if (rc != PCIBIOS_SUCCESSFUL) {
6565 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev);
6566 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
6567 rc = IPR_RC_JOB_CONTINUE;
6569 ipr_cmd->job_step = ipr_reset_bist_done;
6570 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
6571 rc = IPR_RC_JOB_RETURN;
6579 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter
6580 * @ipr_cmd: ipr command struct
6582 * Description: This clears PCI reset to the adapter and delays two seconds.
6587 static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd)
6590 pci_set_pcie_reset_state(ipr_cmd->ioa_cfg->pdev, pcie_deassert_reset);
6591 ipr_cmd->job_step = ipr_reset_bist_done;
6592 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
6594 return IPR_RC_JOB_RETURN;
6598 * ipr_reset_slot_reset - Reset the PCI slot of the adapter.
6599 * @ipr_cmd: ipr command struct
6601 * Description: This asserts PCI reset to the adapter.
6606 static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd)
6608 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6609 struct pci_dev *pdev = ioa_cfg->pdev;
6612 pci_block_user_cfg_access(pdev);
6613 pci_set_pcie_reset_state(pdev, pcie_warm_reset);
6614 ipr_cmd->job_step = ipr_reset_slot_reset_done;
6615 ipr_reset_start_timer(ipr_cmd, IPR_PCI_RESET_TIMEOUT);
6617 return IPR_RC_JOB_RETURN;
6621 * ipr_reset_allowed - Query whether or not IOA can be reset
6622 * @ioa_cfg: ioa config struct
6625 * 0 if reset not allowed / non-zero if reset is allowed
6627 static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg)
6629 volatile u32 temp_reg;
6631 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
6632 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0);
6636 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA.
6637 * @ipr_cmd: ipr command struct
6639 * Description: This function waits for adapter permission to run BIST,
6640 * then runs BIST. If the adapter does not give permission after a
6641 * reasonable time, we will reset the adapter anyway. The impact of
6642 * resetting the adapter without warning the adapter is the risk of
6643 * losing the persistent error log on the adapter. If the adapter is
6644 * reset while it is writing to the flash on the adapter, the flash
6645 * segment will have bad ECC and be zeroed.
6648 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6650 static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd)
6652 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6653 int rc = IPR_RC_JOB_RETURN;
6655 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) {
6656 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
6657 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
6659 ipr_cmd->job_step = ioa_cfg->reset;
6660 rc = IPR_RC_JOB_CONTINUE;
6667 * ipr_reset_alert_part2 - Alert the adapter of a pending reset
6668 * @ipr_cmd: ipr command struct
6670 * Description: This function alerts the adapter that it will be reset.
6671 * If memory space is not currently enabled, proceed directly
6672 * to running BIST on the adapter. The timer must always be started
6673 * so we guarantee we do not run BIST from ipr_isr.
6678 static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd)
6680 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6685 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg);
6687 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) {
6688 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
6689 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg);
6690 ipr_cmd->job_step = ipr_reset_wait_to_start_bist;
6692 ipr_cmd->job_step = ioa_cfg->reset;
6695 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
6696 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
6699 return IPR_RC_JOB_RETURN;
6703 * ipr_reset_ucode_download_done - Microcode download completion
6704 * @ipr_cmd: ipr command struct
6706 * Description: This function unmaps the microcode download buffer.
6709 * IPR_RC_JOB_CONTINUE
6711 static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd)
6713 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6714 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
6716 pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist,
6717 sglist->num_sg, DMA_TO_DEVICE);
6719 ipr_cmd->job_step = ipr_reset_alert;
6720 return IPR_RC_JOB_CONTINUE;
6724 * ipr_reset_ucode_download - Download microcode to the adapter
6725 * @ipr_cmd: ipr command struct
6727 * Description: This function checks to see if it there is microcode
6728 * to download to the adapter. If there is, a download is performed.
6731 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6733 static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
6735 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6736 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
6739 ipr_cmd->job_step = ipr_reset_alert;
6742 return IPR_RC_JOB_CONTINUE;
6744 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6745 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6746 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER;
6747 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE;
6748 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16;
6749 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
6750 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
6752 ipr_build_ucode_ioadl(ipr_cmd, sglist);
6753 ipr_cmd->job_step = ipr_reset_ucode_download_done;
6755 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
6756 IPR_WRITE_BUFFER_TIMEOUT);
6759 return IPR_RC_JOB_RETURN;
6763 * ipr_reset_shutdown_ioa - Shutdown the adapter
6764 * @ipr_cmd: ipr command struct
6766 * Description: This function issues an adapter shutdown of the
6767 * specified type to the specified adapter as part of the
6768 * adapter reset job.
6771 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6773 static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
6775 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6776 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type;
6777 unsigned long timeout;
6778 int rc = IPR_RC_JOB_CONTINUE;
6781 if (shutdown_type != IPR_SHUTDOWN_NONE && !ioa_cfg->ioa_is_dead) {
6782 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6783 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6784 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
6785 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type;
6787 if (shutdown_type == IPR_SHUTDOWN_NORMAL)
6788 timeout = IPR_SHUTDOWN_TIMEOUT;
6789 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL)
6790 timeout = IPR_INTERNAL_TIMEOUT;
6791 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
6792 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO;
6794 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT;
6796 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout);
6798 rc = IPR_RC_JOB_RETURN;
6799 ipr_cmd->job_step = ipr_reset_ucode_download;
6801 ipr_cmd->job_step = ipr_reset_alert;
6808 * ipr_reset_ioa_job - Adapter reset job
6809 * @ipr_cmd: ipr command struct
6811 * Description: This function is the job router for the adapter reset job.
6816 static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
6819 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6822 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
6824 if (ioa_cfg->reset_cmd != ipr_cmd) {
6826 * We are doing nested adapter resets and this is
6827 * not the current reset job.
6829 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6833 if (IPR_IOASC_SENSE_KEY(ioasc)) {
6834 rc = ipr_cmd->job_step_failed(ipr_cmd);
6835 if (rc == IPR_RC_JOB_RETURN)
6839 ipr_reinit_ipr_cmnd(ipr_cmd);
6840 ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
6841 rc = ipr_cmd->job_step(ipr_cmd);
6842 } while(rc == IPR_RC_JOB_CONTINUE);
6846 * _ipr_initiate_ioa_reset - Initiate an adapter reset
6847 * @ioa_cfg: ioa config struct
6848 * @job_step: first job step of reset job
6849 * @shutdown_type: shutdown type
6851 * Description: This function will initiate the reset of the given adapter
6852 * starting at the selected job step.
6853 * If the caller needs to wait on the completion of the reset,
6854 * the caller must sleep on the reset_wait_q.
6859 static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
6860 int (*job_step) (struct ipr_cmnd *),
6861 enum ipr_shutdown_type shutdown_type)
6863 struct ipr_cmnd *ipr_cmd;
6865 ioa_cfg->in_reset_reload = 1;
6866 ioa_cfg->allow_cmds = 0;
6867 scsi_block_requests(ioa_cfg->host);
6869 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
6870 ioa_cfg->reset_cmd = ipr_cmd;
6871 ipr_cmd->job_step = job_step;
6872 ipr_cmd->u.shutdown_type = shutdown_type;
6874 ipr_reset_ioa_job(ipr_cmd);
6878 * ipr_initiate_ioa_reset - Initiate an adapter reset
6879 * @ioa_cfg: ioa config struct
6880 * @shutdown_type: shutdown type
6882 * Description: This function will initiate the reset of the given adapter.
6883 * If the caller needs to wait on the completion of the reset,
6884 * the caller must sleep on the reset_wait_q.
6889 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
6890 enum ipr_shutdown_type shutdown_type)
6892 if (ioa_cfg->ioa_is_dead)
6895 if (ioa_cfg->in_reset_reload && ioa_cfg->sdt_state == GET_DUMP)
6896 ioa_cfg->sdt_state = ABORT_DUMP;
6898 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) {
6899 dev_err(&ioa_cfg->pdev->dev,
6900 "IOA taken offline - error recovery failed\n");
6902 ioa_cfg->reset_retries = 0;
6903 ioa_cfg->ioa_is_dead = 1;
6905 if (ioa_cfg->in_ioa_bringdown) {
6906 ioa_cfg->reset_cmd = NULL;
6907 ioa_cfg->in_reset_reload = 0;
6908 ipr_fail_all_ops(ioa_cfg);
6909 wake_up_all(&ioa_cfg->reset_wait_q);
6911 spin_unlock_irq(ioa_cfg->host->host_lock);
6912 scsi_unblock_requests(ioa_cfg->host);
6913 spin_lock_irq(ioa_cfg->host->host_lock);
6916 ioa_cfg->in_ioa_bringdown = 1;
6917 shutdown_type = IPR_SHUTDOWN_NONE;
6921 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa,
6926 * ipr_reset_freeze - Hold off all I/O activity
6927 * @ipr_cmd: ipr command struct
6929 * Description: If the PCI slot is frozen, hold off all I/O
6930 * activity; then, as soon as the slot is available again,
6931 * initiate an adapter reset.
6933 static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd)
6935 /* Disallow new interrupts, avoid loop */
6936 ipr_cmd->ioa_cfg->allow_interrupts = 0;
6937 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
6938 ipr_cmd->done = ipr_reset_ioa_job;
6939 return IPR_RC_JOB_RETURN;
6943 * ipr_pci_frozen - Called when slot has experienced a PCI bus error.
6944 * @pdev: PCI device struct
6946 * Description: This routine is called to tell us that the PCI bus
6947 * is down. Can't do anything here, except put the device driver
6948 * into a holding pattern, waiting for the PCI bus to come back.
6950 static void ipr_pci_frozen(struct pci_dev *pdev)
6952 unsigned long flags = 0;
6953 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
6955 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6956 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE);
6957 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6961 * ipr_pci_slot_reset - Called when PCI slot has been reset.
6962 * @pdev: PCI device struct
6964 * Description: This routine is called by the pci error recovery
6965 * code after the PCI slot has been reset, just before we
6966 * should resume normal operations.
6968 static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev)
6970 unsigned long flags = 0;
6971 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
6973 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6974 if (ioa_cfg->needs_warm_reset)
6975 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
6977 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space,
6979 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6980 return PCI_ERS_RESULT_RECOVERED;
6984 * ipr_pci_perm_failure - Called when PCI slot is dead for good.
6985 * @pdev: PCI device struct
6987 * Description: This routine is called when the PCI bus has
6988 * permanently failed.
6990 static void ipr_pci_perm_failure(struct pci_dev *pdev)
6992 unsigned long flags = 0;
6993 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
6995 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6996 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
6997 ioa_cfg->sdt_state = ABORT_DUMP;
6998 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES;
6999 ioa_cfg->in_ioa_bringdown = 1;
7000 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7001 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
7005 * ipr_pci_error_detected - Called when a PCI error is detected.
7006 * @pdev: PCI device struct
7007 * @state: PCI channel state
7009 * Description: Called when a PCI error is detected.
7012 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
7014 static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
7015 pci_channel_state_t state)
7018 case pci_channel_io_frozen:
7019 ipr_pci_frozen(pdev);
7020 return PCI_ERS_RESULT_NEED_RESET;
7021 case pci_channel_io_perm_failure:
7022 ipr_pci_perm_failure(pdev);
7023 return PCI_ERS_RESULT_DISCONNECT;
7028 return PCI_ERS_RESULT_NEED_RESET;
7032 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..)
7033 * @ioa_cfg: ioa cfg struct
7035 * Description: This is the second phase of adapter intialization
7036 * This function takes care of initilizing the adapter to the point
7037 * where it can accept new commands.
7040 * 0 on success / -EIO on failure
7042 static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
7045 unsigned long host_lock_flags = 0;
7048 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7049 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
7050 if (ioa_cfg->needs_hard_reset) {
7051 ioa_cfg->needs_hard_reset = 0;
7052 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7054 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa,
7057 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7058 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
7059 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7061 if (ioa_cfg->ioa_is_dead) {
7063 } else if (ipr_invalid_adapter(ioa_cfg)) {
7067 dev_err(&ioa_cfg->pdev->dev,
7068 "Adapter not supported in this hardware configuration.\n");
7071 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7078 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter
7079 * @ioa_cfg: ioa config struct
7084 static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
7088 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
7089 if (ioa_cfg->ipr_cmnd_list[i])
7090 pci_pool_free(ioa_cfg->ipr_cmd_pool,
7091 ioa_cfg->ipr_cmnd_list[i],
7092 ioa_cfg->ipr_cmnd_list_dma[i]);
7094 ioa_cfg->ipr_cmnd_list[i] = NULL;
7097 if (ioa_cfg->ipr_cmd_pool)
7098 pci_pool_destroy (ioa_cfg->ipr_cmd_pool);
7100 ioa_cfg->ipr_cmd_pool = NULL;
7104 * ipr_free_mem - Frees memory allocated for an adapter
7105 * @ioa_cfg: ioa cfg struct
7110 static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg)
7114 kfree(ioa_cfg->res_entries);
7115 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs),
7116 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
7117 ipr_free_cmd_blks(ioa_cfg);
7118 pci_free_consistent(ioa_cfg->pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
7119 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
7120 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_config_table),
7122 ioa_cfg->cfg_table_dma);
7124 for (i = 0; i < IPR_NUM_HCAMS; i++) {
7125 pci_free_consistent(ioa_cfg->pdev,
7126 sizeof(struct ipr_hostrcb),
7127 ioa_cfg->hostrcb[i],
7128 ioa_cfg->hostrcb_dma[i]);
7131 ipr_free_dump(ioa_cfg);
7132 kfree(ioa_cfg->trace);
7136 * ipr_free_all_resources - Free all allocated resources for an adapter.
7137 * @ipr_cmd: ipr command struct
7139 * This function frees all allocated resources for the
7140 * specified adapter.
7145 static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
7147 struct pci_dev *pdev = ioa_cfg->pdev;
7150 free_irq(pdev->irq, ioa_cfg);
7151 iounmap(ioa_cfg->hdw_dma_regs);
7152 pci_release_regions(pdev);
7153 ipr_free_mem(ioa_cfg);
7154 scsi_host_put(ioa_cfg->host);
7155 pci_disable_device(pdev);
7160 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter
7161 * @ioa_cfg: ioa config struct
7164 * 0 on success / -ENOMEM on allocation failure
7166 static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
7168 struct ipr_cmnd *ipr_cmd;
7169 struct ipr_ioarcb *ioarcb;
7170 dma_addr_t dma_addr;
7173 ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev,
7174 sizeof(struct ipr_cmnd), 8, 0);
7176 if (!ioa_cfg->ipr_cmd_pool)
7179 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
7180 ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr);
7183 ipr_free_cmd_blks(ioa_cfg);
7187 memset(ipr_cmd, 0, sizeof(*ipr_cmd));
7188 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd;
7189 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr;
7191 ioarcb = &ipr_cmd->ioarcb;
7192 ioarcb->ioarcb_host_pci_addr = cpu_to_be32(dma_addr);
7193 ioarcb->host_response_handle = cpu_to_be32(i << 2);
7194 ioarcb->write_ioadl_addr =
7195 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioadl));
7196 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
7197 ioarcb->ioasa_host_pci_addr =
7198 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioasa));
7199 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa));
7200 ipr_cmd->cmd_index = i;
7201 ipr_cmd->ioa_cfg = ioa_cfg;
7202 ipr_cmd->sense_buffer_dma = dma_addr +
7203 offsetof(struct ipr_cmnd, sense_buffer);
7205 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
7212 * ipr_alloc_mem - Allocate memory for an adapter
7213 * @ioa_cfg: ioa config struct
7216 * 0 on success / non-zero for error
7218 static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
7220 struct pci_dev *pdev = ioa_cfg->pdev;
7221 int i, rc = -ENOMEM;
7224 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) *
7225 IPR_MAX_PHYSICAL_DEVS, GFP_KERNEL);
7227 if (!ioa_cfg->res_entries)
7230 for (i = 0; i < IPR_MAX_PHYSICAL_DEVS; i++)
7231 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
7233 ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev,
7234 sizeof(struct ipr_misc_cbs),
7235 &ioa_cfg->vpd_cbs_dma);
7237 if (!ioa_cfg->vpd_cbs)
7238 goto out_free_res_entries;
7240 if (ipr_alloc_cmd_blks(ioa_cfg))
7241 goto out_free_vpd_cbs;
7243 ioa_cfg->host_rrq = pci_alloc_consistent(ioa_cfg->pdev,
7244 sizeof(u32) * IPR_NUM_CMD_BLKS,
7245 &ioa_cfg->host_rrq_dma);
7247 if (!ioa_cfg->host_rrq)
7248 goto out_ipr_free_cmd_blocks;
7250 ioa_cfg->cfg_table = pci_alloc_consistent(ioa_cfg->pdev,
7251 sizeof(struct ipr_config_table),
7252 &ioa_cfg->cfg_table_dma);
7254 if (!ioa_cfg->cfg_table)
7255 goto out_free_host_rrq;
7257 for (i = 0; i < IPR_NUM_HCAMS; i++) {
7258 ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev,
7259 sizeof(struct ipr_hostrcb),
7260 &ioa_cfg->hostrcb_dma[i]);
7262 if (!ioa_cfg->hostrcb[i])
7263 goto out_free_hostrcb_dma;
7265 ioa_cfg->hostrcb[i]->hostrcb_dma =
7266 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam);
7267 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg;
7268 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
7271 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) *
7272 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL);
7274 if (!ioa_cfg->trace)
7275 goto out_free_hostrcb_dma;
7282 out_free_hostrcb_dma:
7284 pci_free_consistent(pdev, sizeof(struct ipr_hostrcb),
7285 ioa_cfg->hostrcb[i],
7286 ioa_cfg->hostrcb_dma[i]);
7288 pci_free_consistent(pdev, sizeof(struct ipr_config_table),
7289 ioa_cfg->cfg_table, ioa_cfg->cfg_table_dma);
7291 pci_free_consistent(pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
7292 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
7293 out_ipr_free_cmd_blocks:
7294 ipr_free_cmd_blks(ioa_cfg);
7296 pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs),
7297 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
7298 out_free_res_entries:
7299 kfree(ioa_cfg->res_entries);
7304 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values
7305 * @ioa_cfg: ioa config struct
7310 static void __devinit ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg)
7314 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
7315 ioa_cfg->bus_attr[i].bus = i;
7316 ioa_cfg->bus_attr[i].qas_enabled = 0;
7317 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH;
7318 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds))
7319 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed];
7321 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE;
7326 * ipr_init_ioa_cfg - Initialize IOA config struct
7327 * @ioa_cfg: ioa config struct
7328 * @host: scsi host struct
7329 * @pdev: PCI dev struct
7334 static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
7335 struct Scsi_Host *host, struct pci_dev *pdev)
7337 const struct ipr_interrupt_offsets *p;
7338 struct ipr_interrupts *t;
7341 ioa_cfg->host = host;
7342 ioa_cfg->pdev = pdev;
7343 ioa_cfg->log_level = ipr_log_level;
7344 ioa_cfg->doorbell = IPR_DOORBELL;
7345 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
7346 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
7347 sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL);
7348 sprintf(ioa_cfg->ipr_pending_label, IPR_PENDQ_LABEL);
7349 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START);
7350 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL);
7351 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL);
7352 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL);
7354 INIT_LIST_HEAD(&ioa_cfg->free_q);
7355 INIT_LIST_HEAD(&ioa_cfg->pending_q);
7356 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q);
7357 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q);
7358 INIT_LIST_HEAD(&ioa_cfg->free_res_q);
7359 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
7360 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
7361 init_waitqueue_head(&ioa_cfg->reset_wait_q);
7362 ioa_cfg->sdt_state = INACTIVE;
7363 if (ipr_enable_cache)
7364 ioa_cfg->cache_state = CACHE_ENABLED;
7366 ioa_cfg->cache_state = CACHE_DISABLED;
7368 ipr_initialize_bus_attr(ioa_cfg);
7370 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS;
7371 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET;
7372 host->max_channel = IPR_MAX_BUS_TO_SCAN;
7373 host->unique_id = host->host_no;
7374 host->max_cmd_len = IPR_MAX_CDB_LEN;
7375 pci_set_drvdata(pdev, ioa_cfg);
7377 p = &ioa_cfg->chip_cfg->regs;
7379 base = ioa_cfg->hdw_dma_regs;
7381 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
7382 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
7383 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
7384 t->clr_interrupt_reg = base + p->clr_interrupt_reg;
7385 t->sense_interrupt_reg = base + p->sense_interrupt_reg;
7386 t->ioarrin_reg = base + p->ioarrin_reg;
7387 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
7388 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
7389 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
7393 * ipr_get_chip_cfg - Find adapter chip configuration
7394 * @dev_id: PCI device id struct
7397 * ptr to chip config on success / NULL on failure
7399 static const struct ipr_chip_cfg_t * __devinit
7400 ipr_get_chip_cfg(const struct pci_device_id *dev_id)
7404 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++)
7405 if (ipr_chip[i].vendor == dev_id->vendor &&
7406 ipr_chip[i].device == dev_id->device)
7407 return ipr_chip[i].cfg;
7412 * ipr_probe_ioa - Allocates memory and does first stage of initialization
7413 * @pdev: PCI device struct
7414 * @dev_id: PCI device id struct
7417 * 0 on success / non-zero on failure
7419 static int __devinit ipr_probe_ioa(struct pci_dev *pdev,
7420 const struct pci_device_id *dev_id)
7422 struct ipr_ioa_cfg *ioa_cfg;
7423 struct Scsi_Host *host;
7424 unsigned long ipr_regs_pci;
7425 void __iomem *ipr_regs;
7426 int rc = PCIBIOS_SUCCESSFUL;
7427 volatile u32 mask, uproc, interrupts;
7431 if ((rc = pci_enable_device(pdev))) {
7432 dev_err(&pdev->dev, "Cannot enable adapter\n");
7436 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
7438 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
7441 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n");
7446 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
7447 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
7448 ata_host_init(&ioa_cfg->ata_host, &pdev->dev,
7449 sata_port_info.flags, &ipr_sata_ops);
7451 ioa_cfg->chip_cfg = ipr_get_chip_cfg(dev_id);
7453 if (!ioa_cfg->chip_cfg) {
7454 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n",
7455 dev_id->vendor, dev_id->device);
7456 goto out_scsi_host_put;
7459 if (ipr_transop_timeout)
7460 ioa_cfg->transop_timeout = ipr_transop_timeout;
7461 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT)
7462 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT;
7464 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT;
7466 ioa_cfg->revid = pdev->revision;
7468 ipr_regs_pci = pci_resource_start(pdev, 0);
7470 rc = pci_request_regions(pdev, IPR_NAME);
7473 "Couldn't register memory range of registers\n");
7474 goto out_scsi_host_put;
7477 ipr_regs = ioremap(ipr_regs_pci, pci_resource_len(pdev, 0));
7481 "Couldn't map memory range of registers\n");
7483 goto out_release_regions;
7486 ioa_cfg->hdw_dma_regs = ipr_regs;
7487 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci;
7488 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs;
7490 ipr_init_ioa_cfg(ioa_cfg, host, pdev);
7492 pci_set_master(pdev);
7494 rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
7496 dev_err(&pdev->dev, "Failed to set PCI DMA mask\n");
7500 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
7501 ioa_cfg->chip_cfg->cache_line_size);
7503 if (rc != PCIBIOS_SUCCESSFUL) {
7504 dev_err(&pdev->dev, "Write of cache line size failed\n");
7509 /* Save away PCI config space for use following IOA reset */
7510 rc = pci_save_state(pdev);
7512 if (rc != PCIBIOS_SUCCESSFUL) {
7513 dev_err(&pdev->dev, "Failed to save PCI config space\n");
7518 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg)))
7521 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg)))
7524 rc = ipr_alloc_mem(ioa_cfg);
7527 "Couldn't allocate enough memory for device driver!\n");
7532 * If HRRQ updated interrupt is not masked, or reset alert is set,
7533 * the card is in an unknown state and needs a hard reset
7535 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7536 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg);
7537 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg);
7538 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT))
7539 ioa_cfg->needs_hard_reset = 1;
7540 if (interrupts & IPR_PCII_ERROR_INTERRUPTS)
7541 ioa_cfg->needs_hard_reset = 1;
7542 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED)
7543 ioa_cfg->ioa_unit_checked = 1;
7545 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
7546 rc = request_irq(pdev->irq, ipr_isr, IRQF_SHARED, IPR_NAME, ioa_cfg);
7549 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",
7554 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) ||
7555 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) {
7556 ioa_cfg->needs_warm_reset = 1;
7557 ioa_cfg->reset = ipr_reset_slot_reset;
7559 ioa_cfg->reset = ipr_reset_start_bist;
7561 spin_lock(&ipr_driver_lock);
7562 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head);
7563 spin_unlock(&ipr_driver_lock);
7570 ipr_free_mem(ioa_cfg);
7573 out_release_regions:
7574 pci_release_regions(pdev);
7576 scsi_host_put(host);
7578 pci_disable_device(pdev);
7583 * ipr_scan_vsets - Scans for VSET devices
7584 * @ioa_cfg: ioa config struct
7586 * Description: Since the VSET resources do not follow SAM in that we can have
7587 * sparse LUNs with no LUN 0, we have to scan for these ourselves.
7592 static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg)
7596 for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++)
7597 for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ )
7598 scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun);
7602 * ipr_initiate_ioa_bringdown - Bring down an adapter
7603 * @ioa_cfg: ioa config struct
7604 * @shutdown_type: shutdown type
7606 * Description: This function will initiate bringing down the adapter.
7607 * This consists of issuing an IOA shutdown to the adapter
7608 * to flush the cache, and running BIST.
7609 * If the caller needs to wait on the completion of the reset,
7610 * the caller must sleep on the reset_wait_q.
7615 static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg,
7616 enum ipr_shutdown_type shutdown_type)
7619 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
7620 ioa_cfg->sdt_state = ABORT_DUMP;
7621 ioa_cfg->reset_retries = 0;
7622 ioa_cfg->in_ioa_bringdown = 1;
7623 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
7628 * __ipr_remove - Remove a single adapter
7629 * @pdev: pci device struct
7631 * Adapter hot plug remove entry point.
7636 static void __ipr_remove(struct pci_dev *pdev)
7638 unsigned long host_lock_flags = 0;
7639 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7642 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7643 while(ioa_cfg->in_reset_reload) {
7644 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7645 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
7646 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7649 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
7651 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7652 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
7653 flush_scheduled_work();
7654 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7656 spin_lock(&ipr_driver_lock);
7657 list_del(&ioa_cfg->queue);
7658 spin_unlock(&ipr_driver_lock);
7660 if (ioa_cfg->sdt_state == ABORT_DUMP)
7661 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
7662 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7664 ipr_free_all_resources(ioa_cfg);
7670 * ipr_remove - IOA hot plug remove entry point
7671 * @pdev: pci device struct
7673 * Adapter hot plug remove entry point.
7678 static void ipr_remove(struct pci_dev *pdev)
7680 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7684 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
7686 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj,
7688 scsi_remove_host(ioa_cfg->host);
7696 * ipr_probe - Adapter hot plug add entry point
7699 * 0 on success / non-zero on failure
7701 static int __devinit ipr_probe(struct pci_dev *pdev,
7702 const struct pci_device_id *dev_id)
7704 struct ipr_ioa_cfg *ioa_cfg;
7707 rc = ipr_probe_ioa(pdev, dev_id);
7712 ioa_cfg = pci_get_drvdata(pdev);
7713 rc = ipr_probe_ioa_part2(ioa_cfg);
7720 rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
7727 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj,
7731 scsi_remove_host(ioa_cfg->host);
7736 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj,
7740 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
7742 scsi_remove_host(ioa_cfg->host);
7747 scsi_scan_host(ioa_cfg->host);
7748 ipr_scan_vsets(ioa_cfg);
7749 scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN);
7750 ioa_cfg->allow_ml_add_del = 1;
7751 ioa_cfg->host->max_channel = IPR_VSET_BUS;
7752 schedule_work(&ioa_cfg->work_q);
7757 * ipr_shutdown - Shutdown handler.
7758 * @pdev: pci device struct
7760 * This function is invoked upon system shutdown/reboot. It will issue
7761 * an adapter shutdown to the adapter to flush the write cache.
7766 static void ipr_shutdown(struct pci_dev *pdev)
7768 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7769 unsigned long lock_flags = 0;
7771 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
7772 while(ioa_cfg->in_reset_reload) {
7773 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
7774 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
7775 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
7778 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
7779 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
7780 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
7783 static struct pci_device_id ipr_pci_table[] __devinitdata = {
7784 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
7785 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 },
7786 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
7787 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 },
7788 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
7789 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 },
7790 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
7791 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 },
7792 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
7793 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 },
7794 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
7795 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 },
7796 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
7797 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 },
7798 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
7799 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0,
7800 IPR_USE_LONG_TRANSOP_TIMEOUT },
7801 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
7802 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
7803 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
7804 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
7805 IPR_USE_LONG_TRANSOP_TIMEOUT },
7806 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
7807 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
7808 IPR_USE_LONG_TRANSOP_TIMEOUT },
7809 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
7810 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
7811 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
7812 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
7813 IPR_USE_LONG_TRANSOP_TIMEOUT},
7814 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
7815 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
7816 IPR_USE_LONG_TRANSOP_TIMEOUT },
7817 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
7818 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0,
7819 IPR_USE_LONG_TRANSOP_TIMEOUT },
7820 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
7821 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575D, 0, 0,
7822 IPR_USE_LONG_TRANSOP_TIMEOUT },
7823 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
7824 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 },
7825 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
7826 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0,
7827 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET },
7828 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
7829 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 },
7830 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
7831 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 },
7832 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
7833 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0,
7834 IPR_USE_LONG_TRANSOP_TIMEOUT },
7835 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
7836 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0,
7837 IPR_USE_LONG_TRANSOP_TIMEOUT },
7838 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SCAMP_E,
7839 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0,
7840 IPR_USE_LONG_TRANSOP_TIMEOUT },
7843 MODULE_DEVICE_TABLE(pci, ipr_pci_table);
7845 static struct pci_error_handlers ipr_err_handler = {
7846 .error_detected = ipr_pci_error_detected,
7847 .slot_reset = ipr_pci_slot_reset,
7850 static struct pci_driver ipr_driver = {
7852 .id_table = ipr_pci_table,
7854 .remove = ipr_remove,
7855 .shutdown = ipr_shutdown,
7856 .err_handler = &ipr_err_handler,
7857 .dynids.use_driver_data = 1
7861 * ipr_init - Module entry point
7864 * 0 on success / negative value on failure
7866 static int __init ipr_init(void)
7868 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n",
7869 IPR_DRIVER_VERSION, IPR_DRIVER_DATE);
7871 return pci_register_driver(&ipr_driver);
7875 * ipr_exit - Module unload
7877 * Module unload entry point.
7882 static void __exit ipr_exit(void)
7884 pci_unregister_driver(&ipr_driver);
7887 module_init(ipr_init);
7888 module_exit(ipr_exit);