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 struct list_head ipr_ioa_head = LIST_HEAD_INIT(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_classdev.kobj, KOBJ_CHANGE);
2438 #ifdef CONFIG_SCSI_IPR_TRACE
2440 * ipr_read_trace - Dump the adapter trace
2441 * @kobj: kobject struct
2444 * @count: buffer size
2447 * number of bytes printed to buffer
2449 static ssize_t ipr_read_trace(struct kobject *kobj, char *buf,
2450 loff_t off, size_t count)
2452 struct class_device *cdev = container_of(kobj,struct class_device,kobj);
2453 struct Scsi_Host *shost = class_to_shost(cdev);
2454 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2455 unsigned long lock_flags = 0;
2456 int size = IPR_TRACE_SIZE;
2457 char *src = (char *)ioa_cfg->trace;
2461 if (off + count > size) {
2466 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2467 memcpy(buf, &src[off], count);
2468 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2472 static struct bin_attribute ipr_trace_attr = {
2478 .read = ipr_read_trace,
2482 static const struct {
2483 enum ipr_cache_state state;
2485 } cache_state [] = {
2486 { CACHE_NONE, "none" },
2487 { CACHE_DISABLED, "disabled" },
2488 { CACHE_ENABLED, "enabled" }
2492 * ipr_show_write_caching - Show the write caching attribute
2493 * @class_dev: class device struct
2497 * number of bytes printed to buffer
2499 static ssize_t ipr_show_write_caching(struct class_device *class_dev, char *buf)
2501 struct Scsi_Host *shost = class_to_shost(class_dev);
2502 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2503 unsigned long lock_flags = 0;
2506 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2507 for (i = 0; i < ARRAY_SIZE(cache_state); i++) {
2508 if (cache_state[i].state == ioa_cfg->cache_state) {
2509 len = snprintf(buf, PAGE_SIZE, "%s\n", cache_state[i].name);
2513 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2519 * ipr_store_write_caching - Enable/disable adapter write cache
2520 * @class_dev: class_device struct
2522 * @count: buffer size
2524 * This function will enable/disable adapter write cache.
2527 * count on success / other on failure
2529 static ssize_t ipr_store_write_caching(struct class_device *class_dev,
2530 const char *buf, size_t count)
2532 struct Scsi_Host *shost = class_to_shost(class_dev);
2533 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2534 unsigned long lock_flags = 0;
2535 enum ipr_cache_state new_state = CACHE_INVALID;
2538 if (!capable(CAP_SYS_ADMIN))
2540 if (ioa_cfg->cache_state == CACHE_NONE)
2543 for (i = 0; i < ARRAY_SIZE(cache_state); i++) {
2544 if (!strncmp(cache_state[i].name, buf, strlen(cache_state[i].name))) {
2545 new_state = cache_state[i].state;
2550 if (new_state != CACHE_DISABLED && new_state != CACHE_ENABLED)
2553 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2554 if (ioa_cfg->cache_state == new_state) {
2555 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2559 ioa_cfg->cache_state = new_state;
2560 dev_info(&ioa_cfg->pdev->dev, "%s adapter write cache.\n",
2561 new_state == CACHE_ENABLED ? "Enabling" : "Disabling");
2562 if (!ioa_cfg->in_reset_reload)
2563 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
2564 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2565 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2570 static struct class_device_attribute ipr_ioa_cache_attr = {
2572 .name = "write_cache",
2573 .mode = S_IRUGO | S_IWUSR,
2575 .show = ipr_show_write_caching,
2576 .store = ipr_store_write_caching
2580 * ipr_show_fw_version - Show the firmware version
2581 * @class_dev: class device struct
2585 * number of bytes printed to buffer
2587 static ssize_t ipr_show_fw_version(struct class_device *class_dev, char *buf)
2589 struct Scsi_Host *shost = class_to_shost(class_dev);
2590 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2591 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
2592 unsigned long lock_flags = 0;
2595 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2596 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n",
2597 ucode_vpd->major_release, ucode_vpd->card_type,
2598 ucode_vpd->minor_release[0],
2599 ucode_vpd->minor_release[1]);
2600 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2604 static struct class_device_attribute ipr_fw_version_attr = {
2606 .name = "fw_version",
2609 .show = ipr_show_fw_version,
2613 * ipr_show_log_level - Show the adapter's error logging level
2614 * @class_dev: class device struct
2618 * number of bytes printed to buffer
2620 static ssize_t ipr_show_log_level(struct class_device *class_dev, char *buf)
2622 struct Scsi_Host *shost = class_to_shost(class_dev);
2623 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2624 unsigned long lock_flags = 0;
2627 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2628 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level);
2629 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2634 * ipr_store_log_level - Change the adapter's error logging level
2635 * @class_dev: class device struct
2639 * number of bytes printed to buffer
2641 static ssize_t ipr_store_log_level(struct class_device *class_dev,
2642 const char *buf, size_t count)
2644 struct Scsi_Host *shost = class_to_shost(class_dev);
2645 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2646 unsigned long lock_flags = 0;
2648 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2649 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10);
2650 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2654 static struct class_device_attribute ipr_log_level_attr = {
2656 .name = "log_level",
2657 .mode = S_IRUGO | S_IWUSR,
2659 .show = ipr_show_log_level,
2660 .store = ipr_store_log_level
2664 * ipr_store_diagnostics - IOA Diagnostics interface
2665 * @class_dev: class_device struct
2667 * @count: buffer size
2669 * This function will reset the adapter and wait a reasonable
2670 * amount of time for any errors that the adapter might log.
2673 * count on success / other on failure
2675 static ssize_t ipr_store_diagnostics(struct class_device *class_dev,
2676 const char *buf, size_t count)
2678 struct Scsi_Host *shost = class_to_shost(class_dev);
2679 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2680 unsigned long lock_flags = 0;
2683 if (!capable(CAP_SYS_ADMIN))
2686 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2687 while(ioa_cfg->in_reset_reload) {
2688 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2689 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2690 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2693 ioa_cfg->errors_logged = 0;
2694 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
2696 if (ioa_cfg->in_reset_reload) {
2697 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2698 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2700 /* Wait for a second for any errors to be logged */
2703 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2707 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2708 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged)
2710 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2715 static struct class_device_attribute ipr_diagnostics_attr = {
2717 .name = "run_diagnostics",
2720 .store = ipr_store_diagnostics
2724 * ipr_show_adapter_state - Show the adapter's state
2725 * @class_dev: class device struct
2729 * number of bytes printed to buffer
2731 static ssize_t ipr_show_adapter_state(struct class_device *class_dev, char *buf)
2733 struct Scsi_Host *shost = class_to_shost(class_dev);
2734 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2735 unsigned long lock_flags = 0;
2738 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2739 if (ioa_cfg->ioa_is_dead)
2740 len = snprintf(buf, PAGE_SIZE, "offline\n");
2742 len = snprintf(buf, PAGE_SIZE, "online\n");
2743 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2748 * ipr_store_adapter_state - Change adapter state
2749 * @class_dev: class_device struct
2751 * @count: buffer size
2753 * This function will change the adapter's state.
2756 * count on success / other on failure
2758 static ssize_t ipr_store_adapter_state(struct class_device *class_dev,
2759 const char *buf, size_t count)
2761 struct Scsi_Host *shost = class_to_shost(class_dev);
2762 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2763 unsigned long lock_flags;
2766 if (!capable(CAP_SYS_ADMIN))
2769 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2770 if (ioa_cfg->ioa_is_dead && !strncmp(buf, "online", 6)) {
2771 ioa_cfg->ioa_is_dead = 0;
2772 ioa_cfg->reset_retries = 0;
2773 ioa_cfg->in_ioa_bringdown = 0;
2774 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2776 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2777 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2782 static struct class_device_attribute ipr_ioa_state_attr = {
2785 .mode = S_IRUGO | S_IWUSR,
2787 .show = ipr_show_adapter_state,
2788 .store = ipr_store_adapter_state
2792 * ipr_store_reset_adapter - Reset the adapter
2793 * @class_dev: class_device struct
2795 * @count: buffer size
2797 * This function will reset the adapter.
2800 * count on success / other on failure
2802 static ssize_t ipr_store_reset_adapter(struct class_device *class_dev,
2803 const char *buf, size_t count)
2805 struct Scsi_Host *shost = class_to_shost(class_dev);
2806 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2807 unsigned long lock_flags;
2810 if (!capable(CAP_SYS_ADMIN))
2813 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2814 if (!ioa_cfg->in_reset_reload)
2815 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
2816 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2817 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2822 static struct class_device_attribute ipr_ioa_reset_attr = {
2824 .name = "reset_host",
2827 .store = ipr_store_reset_adapter
2831 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer
2832 * @buf_len: buffer length
2834 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather
2835 * list to use for microcode download
2838 * pointer to sglist / NULL on failure
2840 static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
2842 int sg_size, order, bsize_elem, num_elem, i, j;
2843 struct ipr_sglist *sglist;
2844 struct scatterlist *scatterlist;
2847 /* Get the minimum size per scatter/gather element */
2848 sg_size = buf_len / (IPR_MAX_SGLIST - 1);
2850 /* Get the actual size per element */
2851 order = get_order(sg_size);
2853 /* Determine the actual number of bytes per element */
2854 bsize_elem = PAGE_SIZE * (1 << order);
2856 /* Determine the actual number of sg entries needed */
2857 if (buf_len % bsize_elem)
2858 num_elem = (buf_len / bsize_elem) + 1;
2860 num_elem = buf_len / bsize_elem;
2862 /* Allocate a scatter/gather list for the DMA */
2863 sglist = kzalloc(sizeof(struct ipr_sglist) +
2864 (sizeof(struct scatterlist) * (num_elem - 1)),
2867 if (sglist == NULL) {
2872 scatterlist = sglist->scatterlist;
2874 sglist->order = order;
2875 sglist->num_sg = num_elem;
2877 /* Allocate a bunch of sg elements */
2878 for (i = 0; i < num_elem; i++) {
2879 page = alloc_pages(GFP_KERNEL, order);
2883 /* Free up what we already allocated */
2884 for (j = i - 1; j >= 0; j--)
2885 __free_pages(scatterlist[j].page, order);
2890 scatterlist[i].page = page;
2897 * ipr_free_ucode_buffer - Frees a microcode download buffer
2898 * @p_dnld: scatter/gather list pointer
2900 * Free a DMA'able ucode download buffer previously allocated with
2901 * ipr_alloc_ucode_buffer
2906 static void ipr_free_ucode_buffer(struct ipr_sglist *sglist)
2910 for (i = 0; i < sglist->num_sg; i++)
2911 __free_pages(sglist->scatterlist[i].page, sglist->order);
2917 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer
2918 * @sglist: scatter/gather list pointer
2919 * @buffer: buffer pointer
2920 * @len: buffer length
2922 * Copy a microcode image from a user buffer into a buffer allocated by
2923 * ipr_alloc_ucode_buffer
2926 * 0 on success / other on failure
2928 static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
2929 u8 *buffer, u32 len)
2931 int bsize_elem, i, result = 0;
2932 struct scatterlist *scatterlist;
2935 /* Determine the actual number of bytes per element */
2936 bsize_elem = PAGE_SIZE * (1 << sglist->order);
2938 scatterlist = sglist->scatterlist;
2940 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) {
2941 kaddr = kmap(scatterlist[i].page);
2942 memcpy(kaddr, buffer, bsize_elem);
2943 kunmap(scatterlist[i].page);
2945 scatterlist[i].length = bsize_elem;
2953 if (len % bsize_elem) {
2954 kaddr = kmap(scatterlist[i].page);
2955 memcpy(kaddr, buffer, len % bsize_elem);
2956 kunmap(scatterlist[i].page);
2958 scatterlist[i].length = len % bsize_elem;
2961 sglist->buffer_len = len;
2966 * ipr_build_ucode_ioadl - Build a microcode download IOADL
2967 * @ipr_cmd: ipr command struct
2968 * @sglist: scatter/gather list
2970 * Builds a microcode download IOA data list (IOADL).
2973 static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd,
2974 struct ipr_sglist *sglist)
2976 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
2977 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
2978 struct scatterlist *scatterlist = sglist->scatterlist;
2981 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
2982 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
2983 ioarcb->write_data_transfer_length = cpu_to_be32(sglist->buffer_len);
2984 ioarcb->write_ioadl_len =
2985 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
2987 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
2988 ioadl[i].flags_and_data_len =
2989 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i]));
2991 cpu_to_be32(sg_dma_address(&scatterlist[i]));
2994 ioadl[i-1].flags_and_data_len |=
2995 cpu_to_be32(IPR_IOADL_FLAGS_LAST);
2999 * ipr_update_ioa_ucode - Update IOA's microcode
3000 * @ioa_cfg: ioa config struct
3001 * @sglist: scatter/gather list
3003 * Initiate an adapter reset to update the IOA's microcode
3006 * 0 on success / -EIO on failure
3008 static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg,
3009 struct ipr_sglist *sglist)
3011 unsigned long lock_flags;
3013 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3014 while(ioa_cfg->in_reset_reload) {
3015 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3016 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3017 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3020 if (ioa_cfg->ucode_sglist) {
3021 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3022 dev_err(&ioa_cfg->pdev->dev,
3023 "Microcode download already in progress\n");
3027 sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist,
3028 sglist->num_sg, DMA_TO_DEVICE);
3030 if (!sglist->num_dma_sg) {
3031 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3032 dev_err(&ioa_cfg->pdev->dev,
3033 "Failed to map microcode download buffer!\n");
3037 ioa_cfg->ucode_sglist = sglist;
3038 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3039 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3040 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3042 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3043 ioa_cfg->ucode_sglist = NULL;
3044 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3049 * ipr_store_update_fw - Update the firmware on the adapter
3050 * @class_dev: class_device struct
3052 * @count: buffer size
3054 * This function will update the firmware on the adapter.
3057 * count on success / other on failure
3059 static ssize_t ipr_store_update_fw(struct class_device *class_dev,
3060 const char *buf, size_t count)
3062 struct Scsi_Host *shost = class_to_shost(class_dev);
3063 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3064 struct ipr_ucode_image_header *image_hdr;
3065 const struct firmware *fw_entry;
3066 struct ipr_sglist *sglist;
3069 int len, result, dnld_size;
3071 if (!capable(CAP_SYS_ADMIN))
3074 len = snprintf(fname, 99, "%s", buf);
3075 fname[len-1] = '\0';
3077 if(request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
3078 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname);
3082 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data;
3084 if (be32_to_cpu(image_hdr->header_length) > fw_entry->size ||
3085 (ioa_cfg->vpd_cbs->page3_data.card_type &&
3086 ioa_cfg->vpd_cbs->page3_data.card_type != image_hdr->card_type)) {
3087 dev_err(&ioa_cfg->pdev->dev, "Invalid microcode buffer\n");
3088 release_firmware(fw_entry);
3092 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length);
3093 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length);
3094 sglist = ipr_alloc_ucode_buffer(dnld_size);
3097 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n");
3098 release_firmware(fw_entry);
3102 result = ipr_copy_ucode_buffer(sglist, src, dnld_size);
3105 dev_err(&ioa_cfg->pdev->dev,
3106 "Microcode buffer copy to DMA buffer failed\n");
3110 result = ipr_update_ioa_ucode(ioa_cfg, sglist);
3115 ipr_free_ucode_buffer(sglist);
3116 release_firmware(fw_entry);
3120 static struct class_device_attribute ipr_update_fw_attr = {
3122 .name = "update_fw",
3125 .store = ipr_store_update_fw
3128 static struct class_device_attribute *ipr_ioa_attrs[] = {
3129 &ipr_fw_version_attr,
3130 &ipr_log_level_attr,
3131 &ipr_diagnostics_attr,
3132 &ipr_ioa_state_attr,
3133 &ipr_ioa_reset_attr,
3134 &ipr_update_fw_attr,
3135 &ipr_ioa_cache_attr,
3139 #ifdef CONFIG_SCSI_IPR_DUMP
3141 * ipr_read_dump - Dump the adapter
3142 * @kobj: kobject struct
3145 * @count: buffer size
3148 * number of bytes printed to buffer
3150 static ssize_t ipr_read_dump(struct kobject *kobj, char *buf,
3151 loff_t off, size_t count)
3153 struct class_device *cdev = container_of(kobj,struct class_device,kobj);
3154 struct Scsi_Host *shost = class_to_shost(cdev);
3155 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3156 struct ipr_dump *dump;
3157 unsigned long lock_flags = 0;
3162 if (!capable(CAP_SYS_ADMIN))
3165 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3166 dump = ioa_cfg->dump;
3168 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) {
3169 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3172 kref_get(&dump->kref);
3173 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3175 if (off > dump->driver_dump.hdr.len) {
3176 kref_put(&dump->kref, ipr_release_dump);
3180 if (off + count > dump->driver_dump.hdr.len) {
3181 count = dump->driver_dump.hdr.len - off;
3185 if (count && off < sizeof(dump->driver_dump)) {
3186 if (off + count > sizeof(dump->driver_dump))
3187 len = sizeof(dump->driver_dump) - off;
3190 src = (u8 *)&dump->driver_dump + off;
3191 memcpy(buf, src, len);
3197 off -= sizeof(dump->driver_dump);
3199 if (count && off < offsetof(struct ipr_ioa_dump, ioa_data)) {
3200 if (off + count > offsetof(struct ipr_ioa_dump, ioa_data))
3201 len = offsetof(struct ipr_ioa_dump, ioa_data) - off;
3204 src = (u8 *)&dump->ioa_dump + off;
3205 memcpy(buf, src, len);
3211 off -= offsetof(struct ipr_ioa_dump, ioa_data);
3214 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK))
3215 len = PAGE_ALIGN(off) - off;
3218 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT];
3219 src += off & ~PAGE_MASK;
3220 memcpy(buf, src, len);
3226 kref_put(&dump->kref, ipr_release_dump);
3231 * ipr_alloc_dump - Prepare for adapter dump
3232 * @ioa_cfg: ioa config struct
3235 * 0 on success / other on failure
3237 static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
3239 struct ipr_dump *dump;
3240 unsigned long lock_flags = 0;
3242 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
3245 ipr_err("Dump memory allocation failed\n");
3249 kref_init(&dump->kref);
3250 dump->ioa_cfg = ioa_cfg;
3252 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3254 if (INACTIVE != ioa_cfg->sdt_state) {
3255 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3260 ioa_cfg->dump = dump;
3261 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
3262 if (ioa_cfg->ioa_is_dead && !ioa_cfg->dump_taken) {
3263 ioa_cfg->dump_taken = 1;
3264 schedule_work(&ioa_cfg->work_q);
3266 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3272 * ipr_free_dump - Free adapter dump memory
3273 * @ioa_cfg: ioa config struct
3276 * 0 on success / other on failure
3278 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
3280 struct ipr_dump *dump;
3281 unsigned long lock_flags = 0;
3285 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3286 dump = ioa_cfg->dump;
3288 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3292 ioa_cfg->dump = NULL;
3293 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3295 kref_put(&dump->kref, ipr_release_dump);
3302 * ipr_write_dump - Setup dump state of adapter
3303 * @kobj: kobject struct
3306 * @count: buffer size
3309 * number of bytes printed to buffer
3311 static ssize_t ipr_write_dump(struct kobject *kobj, char *buf,
3312 loff_t off, size_t count)
3314 struct class_device *cdev = container_of(kobj,struct class_device,kobj);
3315 struct Scsi_Host *shost = class_to_shost(cdev);
3316 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3319 if (!capable(CAP_SYS_ADMIN))
3323 rc = ipr_alloc_dump(ioa_cfg);
3324 else if (buf[0] == '0')
3325 rc = ipr_free_dump(ioa_cfg);
3335 static struct bin_attribute ipr_dump_attr = {
3338 .mode = S_IRUSR | S_IWUSR,
3341 .read = ipr_read_dump,
3342 .write = ipr_write_dump
3345 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; };
3349 * ipr_change_queue_depth - Change the device's queue depth
3350 * @sdev: scsi device struct
3351 * @qdepth: depth to set
3356 static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth)
3358 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
3359 struct ipr_resource_entry *res;
3360 unsigned long lock_flags = 0;
3362 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3363 res = (struct ipr_resource_entry *)sdev->hostdata;
3365 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN)
3366 qdepth = IPR_MAX_CMD_PER_ATA_LUN;
3367 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3369 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
3370 return sdev->queue_depth;
3374 * ipr_change_queue_type - Change the device's queue type
3375 * @dsev: scsi device struct
3376 * @tag_type: type of tags to use
3379 * actual queue type set
3381 static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type)
3383 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
3384 struct ipr_resource_entry *res;
3385 unsigned long lock_flags = 0;
3387 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3388 res = (struct ipr_resource_entry *)sdev->hostdata;
3391 if (ipr_is_gscsi(res) && sdev->tagged_supported) {
3393 * We don't bother quiescing the device here since the
3394 * adapter firmware does it for us.
3396 scsi_set_tag_type(sdev, tag_type);
3399 scsi_activate_tcq(sdev, sdev->queue_depth);
3401 scsi_deactivate_tcq(sdev, sdev->queue_depth);
3407 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3412 * ipr_show_adapter_handle - Show the adapter's resource handle for this device
3413 * @dev: device struct
3417 * number of bytes printed to buffer
3419 static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf)
3421 struct scsi_device *sdev = to_scsi_device(dev);
3422 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
3423 struct ipr_resource_entry *res;
3424 unsigned long lock_flags = 0;
3425 ssize_t len = -ENXIO;
3427 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3428 res = (struct ipr_resource_entry *)sdev->hostdata;
3430 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->cfgte.res_handle);
3431 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3435 static struct device_attribute ipr_adapter_handle_attr = {
3437 .name = "adapter_handle",
3440 .show = ipr_show_adapter_handle
3443 static struct device_attribute *ipr_dev_attrs[] = {
3444 &ipr_adapter_handle_attr,
3449 * ipr_biosparam - Return the HSC mapping
3450 * @sdev: scsi device struct
3451 * @block_device: block device pointer
3452 * @capacity: capacity of the device
3453 * @parm: Array containing returned HSC values.
3455 * This function generates the HSC parms that fdisk uses.
3456 * We want to make sure we return something that places partitions
3457 * on 4k boundaries for best performance with the IOA.
3462 static int ipr_biosparam(struct scsi_device *sdev,
3463 struct block_device *block_device,
3464 sector_t capacity, int *parm)
3472 cylinders = capacity;
3473 sector_div(cylinders, (128 * 32));
3478 parm[2] = cylinders;
3484 * ipr_find_starget - Find target based on bus/target.
3485 * @starget: scsi target struct
3488 * resource entry pointer if found / NULL if not found
3490 static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget)
3492 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
3493 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
3494 struct ipr_resource_entry *res;
3496 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3497 if ((res->cfgte.res_addr.bus == starget->channel) &&
3498 (res->cfgte.res_addr.target == starget->id) &&
3499 (res->cfgte.res_addr.lun == 0)) {
3507 static struct ata_port_info sata_port_info;
3510 * ipr_target_alloc - Prepare for commands to a SCSI target
3511 * @starget: scsi target struct
3513 * If the device is a SATA device, this function allocates an
3514 * ATA port with libata, else it does nothing.
3517 * 0 on success / non-0 on failure
3519 static int ipr_target_alloc(struct scsi_target *starget)
3521 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
3522 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
3523 struct ipr_sata_port *sata_port;
3524 struct ata_port *ap;
3525 struct ipr_resource_entry *res;
3526 unsigned long lock_flags;
3528 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3529 res = ipr_find_starget(starget);
3530 starget->hostdata = NULL;
3532 if (res && ipr_is_gata(res)) {
3533 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3534 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL);
3538 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost);
3540 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3541 sata_port->ioa_cfg = ioa_cfg;
3543 sata_port->res = res;
3545 res->sata_port = sata_port;
3546 ap->private_data = sata_port;
3547 starget->hostdata = sata_port;
3553 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3559 * ipr_target_destroy - Destroy a SCSI target
3560 * @starget: scsi target struct
3562 * If the device was a SATA device, this function frees the libata
3563 * ATA port, else it does nothing.
3566 static void ipr_target_destroy(struct scsi_target *starget)
3568 struct ipr_sata_port *sata_port = starget->hostdata;
3571 starget->hostdata = NULL;
3572 ata_sas_port_destroy(sata_port->ap);
3578 * ipr_find_sdev - Find device based on bus/target/lun.
3579 * @sdev: scsi device struct
3582 * resource entry pointer if found / NULL if not found
3584 static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev)
3586 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
3587 struct ipr_resource_entry *res;
3589 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3590 if ((res->cfgte.res_addr.bus == sdev->channel) &&
3591 (res->cfgte.res_addr.target == sdev->id) &&
3592 (res->cfgte.res_addr.lun == sdev->lun))
3600 * ipr_slave_destroy - Unconfigure a SCSI device
3601 * @sdev: scsi device struct
3606 static void ipr_slave_destroy(struct scsi_device *sdev)
3608 struct ipr_resource_entry *res;
3609 struct ipr_ioa_cfg *ioa_cfg;
3610 unsigned long lock_flags = 0;
3612 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
3614 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3615 res = (struct ipr_resource_entry *) sdev->hostdata;
3618 ata_port_disable(res->sata_port->ap);
3619 sdev->hostdata = NULL;
3621 res->sata_port = NULL;
3623 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3627 * ipr_slave_configure - Configure a SCSI device
3628 * @sdev: scsi device struct
3630 * This function configures the specified scsi device.
3635 static int ipr_slave_configure(struct scsi_device *sdev)
3637 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
3638 struct ipr_resource_entry *res;
3639 unsigned long lock_flags = 0;
3641 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3642 res = sdev->hostdata;
3644 if (ipr_is_af_dasd_device(res))
3645 sdev->type = TYPE_RAID;
3646 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) {
3647 sdev->scsi_level = 4;
3648 sdev->no_uld_attach = 1;
3650 if (ipr_is_vset_device(res)) {
3651 sdev->timeout = IPR_VSET_RW_TIMEOUT;
3652 blk_queue_max_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
3654 if (ipr_is_vset_device(res) || ipr_is_scsi_disk(res))
3655 sdev->allow_restart = 1;
3656 if (ipr_is_gata(res) && res->sata_port) {
3657 scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN);
3658 ata_sas_slave_configure(sdev, res->sata_port->ap);
3660 scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun);
3663 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3668 * ipr_ata_slave_alloc - Prepare for commands to a SATA device
3669 * @sdev: scsi device struct
3671 * This function initializes an ATA port so that future commands
3672 * sent through queuecommand will work.
3677 static int ipr_ata_slave_alloc(struct scsi_device *sdev)
3679 struct ipr_sata_port *sata_port = NULL;
3683 if (sdev->sdev_target)
3684 sata_port = sdev->sdev_target->hostdata;
3686 rc = ata_sas_port_init(sata_port->ap);
3688 ipr_slave_destroy(sdev);
3695 * ipr_slave_alloc - Prepare for commands to a device.
3696 * @sdev: scsi device struct
3698 * This function saves a pointer to the resource entry
3699 * in the scsi device struct if the device exists. We
3700 * can then use this pointer in ipr_queuecommand when
3701 * handling new commands.
3704 * 0 on success / -ENXIO if device does not exist
3706 static int ipr_slave_alloc(struct scsi_device *sdev)
3708 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
3709 struct ipr_resource_entry *res;
3710 unsigned long lock_flags;
3713 sdev->hostdata = NULL;
3715 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3717 res = ipr_find_sdev(sdev);
3722 sdev->hostdata = res;
3723 if (!ipr_is_naca_model(res))
3724 res->needs_sync_complete = 1;
3726 if (ipr_is_gata(res)) {
3727 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3728 return ipr_ata_slave_alloc(sdev);
3732 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3738 * ipr_eh_host_reset - Reset the host adapter
3739 * @scsi_cmd: scsi command struct
3744 static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd)
3746 struct ipr_ioa_cfg *ioa_cfg;
3750 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
3752 dev_err(&ioa_cfg->pdev->dev,
3753 "Adapter being reset as a result of error recovery.\n");
3755 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
3756 ioa_cfg->sdt_state = GET_DUMP;
3758 rc = ipr_reset_reload(ioa_cfg, IPR_SHUTDOWN_ABBREV);
3764 static int ipr_eh_host_reset(struct scsi_cmnd * cmd)
3768 spin_lock_irq(cmd->device->host->host_lock);
3769 rc = __ipr_eh_host_reset(cmd);
3770 spin_unlock_irq(cmd->device->host->host_lock);
3776 * ipr_device_reset - Reset the device
3777 * @ioa_cfg: ioa config struct
3778 * @res: resource entry struct
3780 * This function issues a device reset to the affected device.
3781 * If the device is a SCSI device, a LUN reset will be sent
3782 * to the device first. If that does not work, a target reset
3783 * will be sent. If the device is a SATA device, a PHY reset will
3787 * 0 on success / non-zero on failure
3789 static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
3790 struct ipr_resource_entry *res)
3792 struct ipr_cmnd *ipr_cmd;
3793 struct ipr_ioarcb *ioarcb;
3794 struct ipr_cmd_pkt *cmd_pkt;
3795 struct ipr_ioarcb_ata_regs *regs;
3799 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
3800 ioarcb = &ipr_cmd->ioarcb;
3801 cmd_pkt = &ioarcb->cmd_pkt;
3802 regs = &ioarcb->add_data.u.regs;
3804 ioarcb->res_handle = res->cfgte.res_handle;
3805 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
3806 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
3807 if (ipr_is_gata(res)) {
3808 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET;
3809 ioarcb->add_cmd_parms_len = cpu_to_be32(sizeof(regs->flags));
3810 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
3813 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
3814 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
3815 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
3816 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET)
3817 memcpy(&res->sata_port->ioasa, &ipr_cmd->ioasa.u.gata,
3818 sizeof(struct ipr_ioasa_gata));
3821 return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0);
3825 * ipr_sata_reset - Reset the SATA port
3826 * @ap: SATA port to reset
3827 * @classes: class of the attached device
3829 * This function issues a SATA phy reset to the affected ATA port.
3832 * 0 on success / non-zero on failure
3834 static int ipr_sata_reset(struct ata_port *ap, unsigned int *classes,
3835 unsigned long deadline)
3837 struct ipr_sata_port *sata_port = ap->private_data;
3838 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
3839 struct ipr_resource_entry *res;
3840 unsigned long lock_flags = 0;
3844 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3845 while(ioa_cfg->in_reset_reload) {
3846 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3847 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3848 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3851 res = sata_port->res;
3853 rc = ipr_device_reset(ioa_cfg, res);
3854 switch(res->cfgte.proto) {
3855 case IPR_PROTO_SATA:
3856 case IPR_PROTO_SAS_STP:
3857 *classes = ATA_DEV_ATA;
3859 case IPR_PROTO_SATA_ATAPI:
3860 case IPR_PROTO_SAS_STP_ATAPI:
3861 *classes = ATA_DEV_ATAPI;
3864 *classes = ATA_DEV_UNKNOWN;
3869 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3875 * ipr_eh_dev_reset - Reset the device
3876 * @scsi_cmd: scsi command struct
3878 * This function issues a device reset to the affected device.
3879 * A LUN reset will be sent to the device first. If that does
3880 * not work, a target reset will be sent.
3885 static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd)
3887 struct ipr_cmnd *ipr_cmd;
3888 struct ipr_ioa_cfg *ioa_cfg;
3889 struct ipr_resource_entry *res;
3890 struct ata_port *ap;
3894 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
3895 res = scsi_cmd->device->hostdata;
3901 * If we are currently going through reset/reload, return failed. This will force the
3902 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
3905 if (ioa_cfg->in_reset_reload)
3907 if (ioa_cfg->ioa_is_dead)
3910 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
3911 if (ipr_cmd->ioarcb.res_handle == res->cfgte.res_handle) {
3912 if (ipr_cmd->scsi_cmd)
3913 ipr_cmd->done = ipr_scsi_eh_done;
3915 ipr_cmd->done = ipr_sata_eh_done;
3916 if (ipr_cmd->qc && !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) {
3917 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
3918 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED;
3923 res->resetting_device = 1;
3924 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n");
3926 if (ipr_is_gata(res) && res->sata_port) {
3927 ap = res->sata_port->ap;
3928 spin_unlock_irq(scsi_cmd->device->host->host_lock);
3929 ata_do_eh(ap, NULL, NULL, ipr_sata_reset, NULL);
3930 spin_lock_irq(scsi_cmd->device->host->host_lock);
3932 rc = ipr_device_reset(ioa_cfg, res);
3933 res->resetting_device = 0;
3936 return (rc ? FAILED : SUCCESS);
3939 static int ipr_eh_dev_reset(struct scsi_cmnd * cmd)
3943 spin_lock_irq(cmd->device->host->host_lock);
3944 rc = __ipr_eh_dev_reset(cmd);
3945 spin_unlock_irq(cmd->device->host->host_lock);
3951 * ipr_bus_reset_done - Op done function for bus reset.
3952 * @ipr_cmd: ipr command struct
3954 * This function is the op done function for a bus reset
3959 static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
3961 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
3962 struct ipr_resource_entry *res;
3965 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3966 if (!memcmp(&res->cfgte.res_handle, &ipr_cmd->ioarcb.res_handle,
3967 sizeof(res->cfgte.res_handle))) {
3968 scsi_report_bus_reset(ioa_cfg->host, res->cfgte.res_addr.bus);
3974 * If abort has not completed, indicate the reset has, else call the
3975 * abort's done function to wake the sleeping eh thread
3977 if (ipr_cmd->sibling->sibling)
3978 ipr_cmd->sibling->sibling = NULL;
3980 ipr_cmd->sibling->done(ipr_cmd->sibling);
3982 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
3987 * ipr_abort_timeout - An abort task has timed out
3988 * @ipr_cmd: ipr command struct
3990 * This function handles when an abort task times out. If this
3991 * happens we issue a bus reset since we have resources tied
3992 * up that must be freed before returning to the midlayer.
3997 static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
3999 struct ipr_cmnd *reset_cmd;
4000 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4001 struct ipr_cmd_pkt *cmd_pkt;
4002 unsigned long lock_flags = 0;
4005 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4006 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) {
4007 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4011 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n");
4012 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4013 ipr_cmd->sibling = reset_cmd;
4014 reset_cmd->sibling = ipr_cmd;
4015 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle;
4016 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt;
4017 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4018 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
4019 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET;
4021 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
4022 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4027 * ipr_cancel_op - Cancel specified op
4028 * @scsi_cmd: scsi command struct
4030 * This function cancels specified op.
4035 static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd)
4037 struct ipr_cmnd *ipr_cmd;
4038 struct ipr_ioa_cfg *ioa_cfg;
4039 struct ipr_resource_entry *res;
4040 struct ipr_cmd_pkt *cmd_pkt;
4045 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
4046 res = scsi_cmd->device->hostdata;
4048 /* If we are currently going through reset/reload, return failed.
4049 * This will force the mid-layer to call ipr_eh_host_reset,
4050 * which will then go to sleep and wait for the reset to complete
4052 if (ioa_cfg->in_reset_reload || ioa_cfg->ioa_is_dead)
4054 if (!res || !ipr_is_gscsi(res))
4057 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
4058 if (ipr_cmd->scsi_cmd == scsi_cmd) {
4059 ipr_cmd->done = ipr_scsi_eh_done;
4068 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4069 ipr_cmd->ioarcb.res_handle = res->cfgte.res_handle;
4070 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
4071 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4072 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
4073 ipr_cmd->u.sdev = scsi_cmd->device;
4075 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n",
4077 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
4078 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4081 * If the abort task timed out and we sent a bus reset, we will get
4082 * one the following responses to the abort
4084 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) {
4089 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4090 if (!ipr_is_naca_model(res))
4091 res->needs_sync_complete = 1;
4094 return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS);
4098 * ipr_eh_abort - Abort a single op
4099 * @scsi_cmd: scsi command struct
4104 static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd)
4106 unsigned long flags;
4111 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags);
4112 rc = ipr_cancel_op(scsi_cmd);
4113 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags);
4120 * ipr_handle_other_interrupt - Handle "other" interrupts
4121 * @ioa_cfg: ioa config struct
4122 * @int_reg: interrupt register
4125 * IRQ_NONE / IRQ_HANDLED
4127 static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg,
4128 volatile u32 int_reg)
4130 irqreturn_t rc = IRQ_HANDLED;
4132 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
4133 /* Mask the interrupt */
4134 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg);
4136 /* Clear the interrupt */
4137 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg);
4138 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
4140 list_del(&ioa_cfg->reset_cmd->queue);
4141 del_timer(&ioa_cfg->reset_cmd->timer);
4142 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
4144 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED)
4145 ioa_cfg->ioa_unit_checked = 1;
4147 dev_err(&ioa_cfg->pdev->dev,
4148 "Permanent IOA failure. 0x%08X\n", int_reg);
4150 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4151 ioa_cfg->sdt_state = GET_DUMP;
4153 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
4154 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
4161 * ipr_isr - Interrupt service routine
4163 * @devp: pointer to ioa config struct
4166 * IRQ_NONE / IRQ_HANDLED
4168 static irqreturn_t ipr_isr(int irq, void *devp)
4170 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
4171 unsigned long lock_flags = 0;
4172 volatile u32 int_reg, int_mask_reg;
4175 struct ipr_cmnd *ipr_cmd;
4176 irqreturn_t rc = IRQ_NONE;
4178 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4180 /* If interrupts are disabled, ignore the interrupt */
4181 if (!ioa_cfg->allow_interrupts) {
4182 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4186 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
4187 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
4189 /* If an interrupt on the adapter did not occur, ignore it */
4190 if (unlikely((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0)) {
4191 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4198 while ((be32_to_cpu(*ioa_cfg->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
4199 ioa_cfg->toggle_bit) {
4201 cmd_index = (be32_to_cpu(*ioa_cfg->hrrq_curr) &
4202 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT;
4204 if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) {
4205 ioa_cfg->errors_logged++;
4206 dev_err(&ioa_cfg->pdev->dev, "Invalid response handle from IOA\n");
4208 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4209 ioa_cfg->sdt_state = GET_DUMP;
4211 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
4212 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4216 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
4218 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4220 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
4222 list_del(&ipr_cmd->queue);
4223 del_timer(&ipr_cmd->timer);
4224 ipr_cmd->done(ipr_cmd);
4228 if (ioa_cfg->hrrq_curr < ioa_cfg->hrrq_end) {
4229 ioa_cfg->hrrq_curr++;
4231 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
4232 ioa_cfg->toggle_bit ^= 1u;
4236 if (ipr_cmd != NULL) {
4237 /* Clear the PCI interrupt */
4238 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg);
4239 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
4244 if (unlikely(rc == IRQ_NONE))
4245 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg);
4247 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4252 * ipr_build_ioadl - Build a scatter/gather list and map the buffer
4253 * @ioa_cfg: ioa config struct
4254 * @ipr_cmd: ipr command struct
4257 * 0 on success / -1 on failure
4259 static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg,
4260 struct ipr_cmnd *ipr_cmd)
4263 struct scatterlist *sg;
4265 u32 ioadl_flags = 0;
4266 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4267 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
4268 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
4270 length = scsi_bufflen(scsi_cmd);
4274 nseg = scsi_dma_map(scsi_cmd);
4276 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
4280 ipr_cmd->dma_use_sg = nseg;
4282 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
4283 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
4284 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
4285 ioarcb->write_data_transfer_length = cpu_to_be32(length);
4286 ioarcb->write_ioadl_len =
4287 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
4288 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
4289 ioadl_flags = IPR_IOADL_FLAGS_READ;
4290 ioarcb->read_data_transfer_length = cpu_to_be32(length);
4291 ioarcb->read_ioadl_len =
4292 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
4295 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->add_data.u.ioadl)) {
4296 ioadl = ioarcb->add_data.u.ioadl;
4297 ioarcb->write_ioadl_addr =
4298 cpu_to_be32(be32_to_cpu(ioarcb->ioarcb_host_pci_addr) +
4299 offsetof(struct ipr_ioarcb, add_data));
4300 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
4303 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
4304 ioadl[i].flags_and_data_len =
4305 cpu_to_be32(ioadl_flags | sg_dma_len(sg));
4306 ioadl[i].address = cpu_to_be32(sg_dma_address(sg));
4309 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
4314 * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes
4315 * @scsi_cmd: scsi command struct
4320 static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd)
4323 u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK;
4325 if (scsi_populate_tag_msg(scsi_cmd, tag)) {
4327 case MSG_SIMPLE_TAG:
4328 rc = IPR_FLAGS_LO_SIMPLE_TASK;
4331 rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK;
4333 case MSG_ORDERED_TAG:
4334 rc = IPR_FLAGS_LO_ORDERED_TASK;
4343 * ipr_erp_done - Process completion of ERP for a device
4344 * @ipr_cmd: ipr command struct
4346 * This function copies the sense buffer into the scsi_cmd
4347 * struct and pushes the scsi_done function.
4352 static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
4354 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4355 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
4356 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4357 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4359 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
4360 scsi_cmd->result |= (DID_ERROR << 16);
4361 scmd_printk(KERN_ERR, scsi_cmd,
4362 "Request Sense failed with IOASC: 0x%08X\n", ioasc);
4364 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer,
4365 SCSI_SENSE_BUFFERSIZE);
4369 if (!ipr_is_naca_model(res))
4370 res->needs_sync_complete = 1;
4373 scsi_dma_unmap(ipr_cmd->scsi_cmd);
4374 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4375 scsi_cmd->scsi_done(scsi_cmd);
4379 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP
4380 * @ipr_cmd: ipr command struct
4385 static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
4387 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
4388 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
4389 dma_addr_t dma_addr = be32_to_cpu(ioarcb->ioarcb_host_pci_addr);
4391 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
4392 ioarcb->write_data_transfer_length = 0;
4393 ioarcb->read_data_transfer_length = 0;
4394 ioarcb->write_ioadl_len = 0;
4395 ioarcb->read_ioadl_len = 0;
4397 ioasa->residual_data_len = 0;
4398 ioarcb->write_ioadl_addr =
4399 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioadl));
4400 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
4404 * ipr_erp_request_sense - Send request sense to a device
4405 * @ipr_cmd: ipr command struct
4407 * This function sends a request sense to a device as a result
4408 * of a check condition.
4413 static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
4415 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
4416 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4418 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
4419 ipr_erp_done(ipr_cmd);
4423 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
4425 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB;
4426 cmd_pkt->cdb[0] = REQUEST_SENSE;
4427 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE;
4428 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE;
4429 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
4430 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ);
4432 ipr_cmd->ioadl[0].flags_and_data_len =
4433 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | SCSI_SENSE_BUFFERSIZE);
4434 ipr_cmd->ioadl[0].address =
4435 cpu_to_be32(ipr_cmd->sense_buffer_dma);
4437 ipr_cmd->ioarcb.read_ioadl_len =
4438 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
4439 ipr_cmd->ioarcb.read_data_transfer_length =
4440 cpu_to_be32(SCSI_SENSE_BUFFERSIZE);
4442 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout,
4443 IPR_REQUEST_SENSE_TIMEOUT * 2);
4447 * ipr_erp_cancel_all - Send cancel all to a device
4448 * @ipr_cmd: ipr command struct
4450 * This function sends a cancel all to a device to clear the
4451 * queue. If we are running TCQ on the device, QERR is set to 1,
4452 * which means all outstanding ops have been dropped on the floor.
4453 * Cancel all will return them to us.
4458 static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
4460 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4461 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
4462 struct ipr_cmd_pkt *cmd_pkt;
4466 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
4468 if (!scsi_get_tag_type(scsi_cmd->device)) {
4469 ipr_erp_request_sense(ipr_cmd);
4473 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
4474 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4475 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
4477 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout,
4478 IPR_CANCEL_ALL_TIMEOUT);
4482 * ipr_dump_ioasa - Dump contents of IOASA
4483 * @ioa_cfg: ioa config struct
4484 * @ipr_cmd: ipr command struct
4485 * @res: resource entry struct
4487 * This function is invoked by the interrupt handler when ops
4488 * fail. It will log the IOASA if appropriate. Only called
4494 static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
4495 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res)
4499 u32 ioasc, fd_ioasc;
4500 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
4501 __be32 *ioasa_data = (__be32 *)ioasa;
4504 ioasc = be32_to_cpu(ioasa->ioasc) & IPR_IOASC_IOASC_MASK;
4505 fd_ioasc = be32_to_cpu(ioasa->fd_ioasc) & IPR_IOASC_IOASC_MASK;
4510 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
4513 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc)
4514 error_index = ipr_get_error(fd_ioasc);
4516 error_index = ipr_get_error(ioasc);
4518 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) {
4519 /* Don't log an error if the IOA already logged one */
4520 if (ioasa->ilid != 0)
4523 if (!ipr_is_gscsi(res))
4526 if (ipr_error_table[error_index].log_ioasa == 0)
4530 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error);
4532 if (sizeof(struct ipr_ioasa) < be16_to_cpu(ioasa->ret_stat_len))
4533 data_len = sizeof(struct ipr_ioasa);
4535 data_len = be16_to_cpu(ioasa->ret_stat_len);
4537 ipr_err("IOASA Dump:\n");
4539 for (i = 0; i < data_len / 4; i += 4) {
4540 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
4541 be32_to_cpu(ioasa_data[i]),
4542 be32_to_cpu(ioasa_data[i+1]),
4543 be32_to_cpu(ioasa_data[i+2]),
4544 be32_to_cpu(ioasa_data[i+3]));
4549 * ipr_gen_sense - Generate SCSI sense data from an IOASA
4551 * @sense_buf: sense data buffer
4556 static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
4559 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer;
4560 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata;
4561 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
4562 u32 ioasc = be32_to_cpu(ioasa->ioasc);
4564 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
4566 if (ioasc >= IPR_FIRST_DRIVER_IOASC)
4569 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION;
4571 if (ipr_is_vset_device(res) &&
4572 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC &&
4573 ioasa->u.vset.failing_lba_hi != 0) {
4574 sense_buf[0] = 0x72;
4575 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc);
4576 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc);
4577 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc);
4581 sense_buf[9] = 0x0A;
4582 sense_buf[10] = 0x80;
4584 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi);
4586 sense_buf[12] = (failing_lba & 0xff000000) >> 24;
4587 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16;
4588 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8;
4589 sense_buf[15] = failing_lba & 0x000000ff;
4591 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
4593 sense_buf[16] = (failing_lba & 0xff000000) >> 24;
4594 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16;
4595 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8;
4596 sense_buf[19] = failing_lba & 0x000000ff;
4598 sense_buf[0] = 0x70;
4599 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc);
4600 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc);
4601 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc);
4603 /* Illegal request */
4604 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) &&
4605 (be32_to_cpu(ioasa->ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
4606 sense_buf[7] = 10; /* additional length */
4608 /* IOARCB was in error */
4609 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24)
4610 sense_buf[15] = 0xC0;
4611 else /* Parameter data was invalid */
4612 sense_buf[15] = 0x80;
4615 ((IPR_FIELD_POINTER_MASK &
4616 be32_to_cpu(ioasa->ioasc_specific)) >> 8) & 0xff;
4618 (IPR_FIELD_POINTER_MASK &
4619 be32_to_cpu(ioasa->ioasc_specific)) & 0xff;
4621 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) {
4622 if (ipr_is_vset_device(res))
4623 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
4625 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba);
4627 sense_buf[0] |= 0x80; /* Or in the Valid bit */
4628 sense_buf[3] = (failing_lba & 0xff000000) >> 24;
4629 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16;
4630 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8;
4631 sense_buf[6] = failing_lba & 0x000000ff;
4634 sense_buf[7] = 6; /* additional length */
4640 * ipr_get_autosense - Copy autosense data to sense buffer
4641 * @ipr_cmd: ipr command struct
4643 * This function copies the autosense buffer to the buffer
4644 * in the scsi_cmd, if there is autosense available.
4647 * 1 if autosense was available / 0 if not
4649 static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
4651 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
4653 if ((be32_to_cpu(ioasa->ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
4656 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
4657 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
4658 SCSI_SENSE_BUFFERSIZE));
4663 * ipr_erp_start - Process an error response for a SCSI op
4664 * @ioa_cfg: ioa config struct
4665 * @ipr_cmd: ipr command struct
4667 * This function determines whether or not to initiate ERP
4668 * on the affected device.
4673 static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
4674 struct ipr_cmnd *ipr_cmd)
4676 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4677 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
4678 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4679 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK;
4682 ipr_scsi_eh_done(ipr_cmd);
4686 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS)
4687 ipr_gen_sense(ipr_cmd);
4689 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
4691 switch (masked_ioasc) {
4692 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
4693 if (ipr_is_naca_model(res))
4694 scsi_cmd->result |= (DID_ABORT << 16);
4696 scsi_cmd->result |= (DID_IMM_RETRY << 16);
4698 case IPR_IOASC_IR_RESOURCE_HANDLE:
4699 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
4700 scsi_cmd->result |= (DID_NO_CONNECT << 16);
4702 case IPR_IOASC_HW_SEL_TIMEOUT:
4703 scsi_cmd->result |= (DID_NO_CONNECT << 16);
4704 if (!ipr_is_naca_model(res))
4705 res->needs_sync_complete = 1;
4707 case IPR_IOASC_SYNC_REQUIRED:
4709 res->needs_sync_complete = 1;
4710 scsi_cmd->result |= (DID_IMM_RETRY << 16);
4712 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
4713 case IPR_IOASA_IR_DUAL_IOA_DISABLED:
4714 scsi_cmd->result |= (DID_PASSTHROUGH << 16);
4716 case IPR_IOASC_BUS_WAS_RESET:
4717 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER:
4719 * Report the bus reset and ask for a retry. The device
4720 * will give CC/UA the next command.
4722 if (!res->resetting_device)
4723 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
4724 scsi_cmd->result |= (DID_ERROR << 16);
4725 if (!ipr_is_naca_model(res))
4726 res->needs_sync_complete = 1;
4728 case IPR_IOASC_HW_DEV_BUS_STATUS:
4729 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
4730 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
4731 if (!ipr_get_autosense(ipr_cmd)) {
4732 if (!ipr_is_naca_model(res)) {
4733 ipr_erp_cancel_all(ipr_cmd);
4738 if (!ipr_is_naca_model(res))
4739 res->needs_sync_complete = 1;
4741 case IPR_IOASC_NR_INIT_CMD_REQUIRED:
4744 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
4745 scsi_cmd->result |= (DID_ERROR << 16);
4746 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
4747 res->needs_sync_complete = 1;
4751 scsi_dma_unmap(ipr_cmd->scsi_cmd);
4752 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4753 scsi_cmd->scsi_done(scsi_cmd);
4757 * ipr_scsi_done - mid-layer done function
4758 * @ipr_cmd: ipr command struct
4760 * This function is invoked by the interrupt handler for
4761 * ops generated by the SCSI mid-layer
4766 static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
4768 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4769 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4770 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4772 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->ioasa.residual_data_len));
4774 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
4775 scsi_dma_unmap(ipr_cmd->scsi_cmd);
4776 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4777 scsi_cmd->scsi_done(scsi_cmd);
4779 ipr_erp_start(ioa_cfg, ipr_cmd);
4783 * ipr_queuecommand - Queue a mid-layer request
4784 * @scsi_cmd: scsi command struct
4785 * @done: done function
4787 * This function queues a request generated by the mid-layer.
4791 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy
4792 * SCSI_MLQUEUE_HOST_BUSY if host is busy
4794 static int ipr_queuecommand(struct scsi_cmnd *scsi_cmd,
4795 void (*done) (struct scsi_cmnd *))
4797 struct ipr_ioa_cfg *ioa_cfg;
4798 struct ipr_resource_entry *res;
4799 struct ipr_ioarcb *ioarcb;
4800 struct ipr_cmnd *ipr_cmd;
4803 scsi_cmd->scsi_done = done;
4804 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
4805 res = scsi_cmd->device->hostdata;
4806 scsi_cmd->result = (DID_OK << 16);
4809 * We are currently blocking all devices due to a host reset
4810 * We have told the host to stop giving us new requests, but
4811 * ERP ops don't count. FIXME
4813 if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead))
4814 return SCSI_MLQUEUE_HOST_BUSY;
4817 * FIXME - Create scsi_set_host_offline interface
4818 * and the ioa_is_dead check can be removed
4820 if (unlikely(ioa_cfg->ioa_is_dead || !res)) {
4821 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
4822 scsi_cmd->result = (DID_NO_CONNECT << 16);
4823 scsi_cmd->scsi_done(scsi_cmd);
4827 if (ipr_is_gata(res) && res->sata_port)
4828 return ata_sas_queuecmd(scsi_cmd, done, res->sata_port->ap);
4830 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4831 ioarcb = &ipr_cmd->ioarcb;
4832 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
4834 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len);
4835 ipr_cmd->scsi_cmd = scsi_cmd;
4836 ioarcb->res_handle = res->cfgte.res_handle;
4837 ipr_cmd->done = ipr_scsi_done;
4838 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_PHYS_LOC(res->cfgte.res_addr));
4840 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
4841 if (scsi_cmd->underflow == 0)
4842 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
4844 if (res->needs_sync_complete) {
4845 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
4846 res->needs_sync_complete = 0;
4849 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
4850 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
4851 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
4852 ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd);
4855 if (scsi_cmd->cmnd[0] >= 0xC0 &&
4856 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE))
4857 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
4859 if (likely(rc == 0))
4860 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
4862 if (likely(rc == 0)) {
4864 writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr),
4865 ioa_cfg->regs.ioarrin_reg);
4867 list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4868 return SCSI_MLQUEUE_HOST_BUSY;
4875 * ipr_ioctl - IOCTL handler
4876 * @sdev: scsi device struct
4881 * 0 on success / other on failure
4883 static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
4885 struct ipr_resource_entry *res;
4887 res = (struct ipr_resource_entry *)sdev->hostdata;
4888 if (res && ipr_is_gata(res))
4889 return ata_scsi_ioctl(sdev, cmd, arg);
4895 * ipr_info - Get information about the card/driver
4896 * @scsi_host: scsi host struct
4899 * pointer to buffer with description string
4901 static const char * ipr_ioa_info(struct Scsi_Host *host)
4903 static char buffer[512];
4904 struct ipr_ioa_cfg *ioa_cfg;
4905 unsigned long lock_flags = 0;
4907 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata;
4909 spin_lock_irqsave(host->host_lock, lock_flags);
4910 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type);
4911 spin_unlock_irqrestore(host->host_lock, lock_flags);
4916 static struct scsi_host_template driver_template = {
4917 .module = THIS_MODULE,
4919 .info = ipr_ioa_info,
4921 .queuecommand = ipr_queuecommand,
4922 .eh_abort_handler = ipr_eh_abort,
4923 .eh_device_reset_handler = ipr_eh_dev_reset,
4924 .eh_host_reset_handler = ipr_eh_host_reset,
4925 .slave_alloc = ipr_slave_alloc,
4926 .slave_configure = ipr_slave_configure,
4927 .slave_destroy = ipr_slave_destroy,
4928 .target_alloc = ipr_target_alloc,
4929 .target_destroy = ipr_target_destroy,
4930 .change_queue_depth = ipr_change_queue_depth,
4931 .change_queue_type = ipr_change_queue_type,
4932 .bios_param = ipr_biosparam,
4933 .can_queue = IPR_MAX_COMMANDS,
4935 .sg_tablesize = IPR_MAX_SGLIST,
4936 .max_sectors = IPR_IOA_MAX_SECTORS,
4937 .cmd_per_lun = IPR_MAX_CMD_PER_LUN,
4938 .use_clustering = ENABLE_CLUSTERING,
4939 .shost_attrs = ipr_ioa_attrs,
4940 .sdev_attrs = ipr_dev_attrs,
4941 .proc_name = IPR_NAME
4945 * ipr_ata_phy_reset - libata phy_reset handler
4946 * @ap: ata port to reset
4949 static void ipr_ata_phy_reset(struct ata_port *ap)
4951 unsigned long flags;
4952 struct ipr_sata_port *sata_port = ap->private_data;
4953 struct ipr_resource_entry *res = sata_port->res;
4954 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
4958 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
4959 while(ioa_cfg->in_reset_reload) {
4960 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
4961 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4962 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
4965 if (!ioa_cfg->allow_cmds)
4968 rc = ipr_device_reset(ioa_cfg, res);
4971 ap->ops->port_disable(ap);
4975 switch(res->cfgte.proto) {
4976 case IPR_PROTO_SATA:
4977 case IPR_PROTO_SAS_STP:
4978 ap->device[0].class = ATA_DEV_ATA;
4980 case IPR_PROTO_SATA_ATAPI:
4981 case IPR_PROTO_SAS_STP_ATAPI:
4982 ap->device[0].class = ATA_DEV_ATAPI;
4985 ap->device[0].class = ATA_DEV_UNKNOWN;
4986 ap->ops->port_disable(ap);
4991 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
4996 * ipr_ata_post_internal - Cleanup after an internal command
4997 * @qc: ATA queued command
5002 static void ipr_ata_post_internal(struct ata_queued_cmd *qc)
5004 struct ipr_sata_port *sata_port = qc->ap->private_data;
5005 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5006 struct ipr_cmnd *ipr_cmd;
5007 unsigned long flags;
5009 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5010 while(ioa_cfg->in_reset_reload) {
5011 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5012 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5013 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5016 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
5017 if (ipr_cmd->qc == qc) {
5018 ipr_device_reset(ioa_cfg, sata_port->res);
5022 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5026 * ipr_tf_read - Read the current ATA taskfile for the ATA port
5028 * @tf: destination ATA taskfile
5033 static void ipr_tf_read(struct ata_port *ap, struct ata_taskfile *tf)
5035 struct ipr_sata_port *sata_port = ap->private_data;
5036 struct ipr_ioasa_gata *g = &sata_port->ioasa;
5038 tf->feature = g->error;
5039 tf->nsect = g->nsect;
5043 tf->device = g->device;
5044 tf->command = g->status;
5045 tf->hob_nsect = g->hob_nsect;
5046 tf->hob_lbal = g->hob_lbal;
5047 tf->hob_lbam = g->hob_lbam;
5048 tf->hob_lbah = g->hob_lbah;
5049 tf->ctl = g->alt_status;
5053 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure
5054 * @regs: destination
5055 * @tf: source ATA taskfile
5060 static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs,
5061 struct ata_taskfile *tf)
5063 regs->feature = tf->feature;
5064 regs->nsect = tf->nsect;
5065 regs->lbal = tf->lbal;
5066 regs->lbam = tf->lbam;
5067 regs->lbah = tf->lbah;
5068 regs->device = tf->device;
5069 regs->command = tf->command;
5070 regs->hob_feature = tf->hob_feature;
5071 regs->hob_nsect = tf->hob_nsect;
5072 regs->hob_lbal = tf->hob_lbal;
5073 regs->hob_lbam = tf->hob_lbam;
5074 regs->hob_lbah = tf->hob_lbah;
5075 regs->ctl = tf->ctl;
5079 * ipr_sata_done - done function for SATA commands
5080 * @ipr_cmd: ipr command struct
5082 * This function is invoked by the interrupt handler for
5083 * ops generated by the SCSI mid-layer to SATA devices
5088 static void ipr_sata_done(struct ipr_cmnd *ipr_cmd)
5090 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5091 struct ata_queued_cmd *qc = ipr_cmd->qc;
5092 struct ipr_sata_port *sata_port = qc->ap->private_data;
5093 struct ipr_resource_entry *res = sata_port->res;
5094 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
5096 memcpy(&sata_port->ioasa, &ipr_cmd->ioasa.u.gata,
5097 sizeof(struct ipr_ioasa_gata));
5098 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
5100 if (be32_to_cpu(ipr_cmd->ioasa.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
5101 scsi_report_device_reset(ioa_cfg->host, res->cfgte.res_addr.bus,
5102 res->cfgte.res_addr.target);
5104 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
5105 qc->err_mask |= __ac_err_mask(ipr_cmd->ioasa.u.gata.status);
5107 qc->err_mask |= ac_err_mask(ipr_cmd->ioasa.u.gata.status);
5108 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5109 ata_qc_complete(qc);
5113 * ipr_build_ata_ioadl - Build an ATA scatter/gather list
5114 * @ipr_cmd: ipr command struct
5115 * @qc: ATA queued command
5118 static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
5119 struct ata_queued_cmd *qc)
5121 u32 ioadl_flags = 0;
5122 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5123 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
5124 int len = qc->nbytes + qc->pad_len;
5125 struct scatterlist *sg;
5130 if (qc->dma_dir == DMA_TO_DEVICE) {
5131 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5132 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5133 ioarcb->write_data_transfer_length = cpu_to_be32(len);
5134 ioarcb->write_ioadl_len =
5135 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5136 } else if (qc->dma_dir == DMA_FROM_DEVICE) {
5137 ioadl_flags = IPR_IOADL_FLAGS_READ;
5138 ioarcb->read_data_transfer_length = cpu_to_be32(len);
5139 ioarcb->read_ioadl_len =
5140 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5143 ata_for_each_sg(sg, qc) {
5144 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
5145 ioadl->address = cpu_to_be32(sg_dma_address(sg));
5146 if (ata_sg_is_last(sg, qc))
5147 ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5154 * ipr_qc_issue - Issue a SATA qc to a device
5155 * @qc: queued command
5160 static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc)
5162 struct ata_port *ap = qc->ap;
5163 struct ipr_sata_port *sata_port = ap->private_data;
5164 struct ipr_resource_entry *res = sata_port->res;
5165 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5166 struct ipr_cmnd *ipr_cmd;
5167 struct ipr_ioarcb *ioarcb;
5168 struct ipr_ioarcb_ata_regs *regs;
5170 if (unlikely(!ioa_cfg->allow_cmds || ioa_cfg->ioa_is_dead))
5171 return AC_ERR_SYSTEM;
5173 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5174 ioarcb = &ipr_cmd->ioarcb;
5175 regs = &ioarcb->add_data.u.regs;
5177 memset(&ioarcb->add_data, 0, sizeof(ioarcb->add_data));
5178 ioarcb->add_cmd_parms_len = cpu_to_be32(sizeof(ioarcb->add_data.u.regs));
5180 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
5182 ipr_cmd->done = ipr_sata_done;
5183 ipr_cmd->ioarcb.res_handle = res->cfgte.res_handle;
5184 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU;
5185 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
5186 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5187 ipr_cmd->dma_use_sg = qc->pad_len ? qc->n_elem + 1 : qc->n_elem;
5189 ipr_build_ata_ioadl(ipr_cmd, qc);
5190 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
5191 ipr_copy_sata_tf(regs, &qc->tf);
5192 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN);
5193 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_PHYS_LOC(res->cfgte.res_addr));
5195 switch (qc->tf.protocol) {
5196 case ATA_PROT_NODATA:
5201 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
5204 case ATA_PROT_ATAPI:
5205 case ATA_PROT_ATAPI_NODATA:
5206 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
5209 case ATA_PROT_ATAPI_DMA:
5210 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
5211 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
5216 return AC_ERR_INVALID;
5220 writel(be32_to_cpu(ioarcb->ioarcb_host_pci_addr),
5221 ioa_cfg->regs.ioarrin_reg);
5226 * ipr_ata_check_status - Return last ATA status
5232 static u8 ipr_ata_check_status(struct ata_port *ap)
5234 struct ipr_sata_port *sata_port = ap->private_data;
5235 return sata_port->ioasa.status;
5239 * ipr_ata_check_altstatus - Return last ATA altstatus
5245 static u8 ipr_ata_check_altstatus(struct ata_port *ap)
5247 struct ipr_sata_port *sata_port = ap->private_data;
5248 return sata_port->ioasa.alt_status;
5251 static struct ata_port_operations ipr_sata_ops = {
5252 .port_disable = ata_port_disable,
5253 .check_status = ipr_ata_check_status,
5254 .check_altstatus = ipr_ata_check_altstatus,
5255 .dev_select = ata_noop_dev_select,
5256 .phy_reset = ipr_ata_phy_reset,
5257 .post_internal_cmd = ipr_ata_post_internal,
5258 .tf_read = ipr_tf_read,
5259 .qc_prep = ata_noop_qc_prep,
5260 .qc_issue = ipr_qc_issue,
5261 .port_start = ata_sas_port_start,
5262 .port_stop = ata_sas_port_stop
5265 static struct ata_port_info sata_port_info = {
5266 .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | ATA_FLAG_SATA_RESET |
5267 ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA,
5268 .pio_mask = 0x10, /* pio4 */
5270 .udma_mask = 0x7f, /* udma0-6 */
5271 .port_ops = &ipr_sata_ops
5274 #ifdef CONFIG_PPC_PSERIES
5275 static const u16 ipr_blocked_processors[] = {
5287 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware
5288 * @ioa_cfg: ioa cfg struct
5290 * Adapters that use Gemstone revision < 3.1 do not work reliably on
5291 * certain pSeries hardware. This function determines if the given
5292 * adapter is in one of these confgurations or not.
5295 * 1 if adapter is not supported / 0 if adapter is supported
5297 static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
5302 if (ioa_cfg->type == 0x5702) {
5303 if (pci_read_config_byte(ioa_cfg->pdev, PCI_REVISION_ID,
5304 &rev_id) == PCIBIOS_SUCCESSFUL) {
5306 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){
5307 if (__is_processor(ipr_blocked_processors[i]))
5316 #define ipr_invalid_adapter(ioa_cfg) 0
5320 * ipr_ioa_bringdown_done - IOA bring down completion.
5321 * @ipr_cmd: ipr command struct
5323 * This function processes the completion of an adapter bring down.
5324 * It wakes any reset sleepers.
5329 static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd)
5331 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5334 ioa_cfg->in_reset_reload = 0;
5335 ioa_cfg->reset_retries = 0;
5336 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5337 wake_up_all(&ioa_cfg->reset_wait_q);
5339 spin_unlock_irq(ioa_cfg->host->host_lock);
5340 scsi_unblock_requests(ioa_cfg->host);
5341 spin_lock_irq(ioa_cfg->host->host_lock);
5344 return IPR_RC_JOB_RETURN;
5348 * ipr_ioa_reset_done - IOA reset completion.
5349 * @ipr_cmd: ipr command struct
5351 * This function processes the completion of an adapter reset.
5352 * It schedules any necessary mid-layer add/removes and
5353 * wakes any reset sleepers.
5358 static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
5360 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5361 struct ipr_resource_entry *res;
5362 struct ipr_hostrcb *hostrcb, *temp;
5366 ioa_cfg->in_reset_reload = 0;
5367 ioa_cfg->allow_cmds = 1;
5368 ioa_cfg->reset_cmd = NULL;
5369 ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
5371 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
5372 if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) {
5377 schedule_work(&ioa_cfg->work_q);
5379 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) {
5380 list_del(&hostrcb->queue);
5381 if (i++ < IPR_NUM_LOG_HCAMS)
5382 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
5384 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
5387 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS);
5388 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n");
5390 ioa_cfg->reset_retries = 0;
5391 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5392 wake_up_all(&ioa_cfg->reset_wait_q);
5394 spin_unlock_irq(ioa_cfg->host->host_lock);
5395 scsi_unblock_requests(ioa_cfg->host);
5396 spin_lock_irq(ioa_cfg->host->host_lock);
5398 if (!ioa_cfg->allow_cmds)
5399 scsi_block_requests(ioa_cfg->host);
5402 return IPR_RC_JOB_RETURN;
5406 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer
5407 * @supported_dev: supported device struct
5408 * @vpids: vendor product id struct
5413 static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev,
5414 struct ipr_std_inq_vpids *vpids)
5416 memset(supported_dev, 0, sizeof(struct ipr_supported_device));
5417 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids));
5418 supported_dev->num_records = 1;
5419 supported_dev->data_length =
5420 cpu_to_be16(sizeof(struct ipr_supported_device));
5421 supported_dev->reserved = 0;
5425 * ipr_set_supported_devs - Send Set Supported Devices for a device
5426 * @ipr_cmd: ipr command struct
5428 * This function send a Set Supported Devices to the adapter
5431 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
5433 static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
5435 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5436 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev;
5437 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
5438 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5439 struct ipr_resource_entry *res = ipr_cmd->u.res;
5441 ipr_cmd->job_step = ipr_ioa_reset_done;
5443 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
5444 if (!ipr_is_scsi_disk(res))
5447 ipr_cmd->u.res = res;
5448 ipr_set_sup_dev_dflt(supp_dev, &res->cfgte.std_inq_data.vpids);
5450 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
5451 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5452 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
5454 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES;
5455 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff;
5456 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff;
5458 ioadl->flags_and_data_len = cpu_to_be32(IPR_IOADL_FLAGS_WRITE_LAST |
5459 sizeof(struct ipr_supported_device));
5460 ioadl->address = cpu_to_be32(ioa_cfg->vpd_cbs_dma +
5461 offsetof(struct ipr_misc_cbs, supp_dev));
5462 ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
5463 ioarcb->write_data_transfer_length =
5464 cpu_to_be32(sizeof(struct ipr_supported_device));
5466 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
5467 IPR_SET_SUP_DEVICE_TIMEOUT);
5469 ipr_cmd->job_step = ipr_set_supported_devs;
5470 return IPR_RC_JOB_RETURN;
5473 return IPR_RC_JOB_CONTINUE;
5477 * ipr_setup_write_cache - Disable write cache if needed
5478 * @ipr_cmd: ipr command struct
5480 * This function sets up adapters write cache to desired setting
5483 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
5485 static int ipr_setup_write_cache(struct ipr_cmnd *ipr_cmd)
5487 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5489 ipr_cmd->job_step = ipr_set_supported_devs;
5490 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
5491 struct ipr_resource_entry, queue);
5493 if (ioa_cfg->cache_state != CACHE_DISABLED)
5494 return IPR_RC_JOB_CONTINUE;
5496 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
5497 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
5498 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
5499 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL;
5501 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
5503 return IPR_RC_JOB_RETURN;
5507 * ipr_get_mode_page - Locate specified mode page
5508 * @mode_pages: mode page buffer
5509 * @page_code: page code to find
5510 * @len: minimum required length for mode page
5513 * pointer to mode page / NULL on failure
5515 static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages,
5516 u32 page_code, u32 len)
5518 struct ipr_mode_page_hdr *mode_hdr;
5522 if (!mode_pages || (mode_pages->hdr.length == 0))
5525 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len;
5526 mode_hdr = (struct ipr_mode_page_hdr *)
5527 (mode_pages->data + mode_pages->hdr.block_desc_len);
5530 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) {
5531 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr)))
5535 page_length = (sizeof(struct ipr_mode_page_hdr) +
5536 mode_hdr->page_length);
5537 length -= page_length;
5538 mode_hdr = (struct ipr_mode_page_hdr *)
5539 ((unsigned long)mode_hdr + page_length);
5546 * ipr_check_term_power - Check for term power errors
5547 * @ioa_cfg: ioa config struct
5548 * @mode_pages: IOAFP mode pages buffer
5550 * Check the IOAFP's mode page 28 for term power errors
5555 static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg,
5556 struct ipr_mode_pages *mode_pages)
5560 struct ipr_dev_bus_entry *bus;
5561 struct ipr_mode_page28 *mode_page;
5563 mode_page = ipr_get_mode_page(mode_pages, 0x28,
5564 sizeof(struct ipr_mode_page28));
5566 entry_length = mode_page->entry_length;
5568 bus = mode_page->bus;
5570 for (i = 0; i < mode_page->num_entries; i++) {
5571 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) {
5572 dev_err(&ioa_cfg->pdev->dev,
5573 "Term power is absent on scsi bus %d\n",
5577 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length);
5582 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table
5583 * @ioa_cfg: ioa config struct
5585 * Looks through the config table checking for SES devices. If
5586 * the SES device is in the SES table indicating a maximum SCSI
5587 * bus speed, the speed is limited for the bus.
5592 static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg)
5597 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
5598 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i,
5599 ioa_cfg->bus_attr[i].bus_width);
5601 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate)
5602 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate;
5607 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28
5608 * @ioa_cfg: ioa config struct
5609 * @mode_pages: mode page 28 buffer
5611 * Updates mode page 28 based on driver configuration
5616 static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg,
5617 struct ipr_mode_pages *mode_pages)
5619 int i, entry_length;
5620 struct ipr_dev_bus_entry *bus;
5621 struct ipr_bus_attributes *bus_attr;
5622 struct ipr_mode_page28 *mode_page;
5624 mode_page = ipr_get_mode_page(mode_pages, 0x28,
5625 sizeof(struct ipr_mode_page28));
5627 entry_length = mode_page->entry_length;
5629 /* Loop for each device bus entry */
5630 for (i = 0, bus = mode_page->bus;
5631 i < mode_page->num_entries;
5632 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) {
5633 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) {
5634 dev_err(&ioa_cfg->pdev->dev,
5635 "Invalid resource address reported: 0x%08X\n",
5636 IPR_GET_PHYS_LOC(bus->res_addr));
5640 bus_attr = &ioa_cfg->bus_attr[i];
5641 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY;
5642 bus->bus_width = bus_attr->bus_width;
5643 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate);
5644 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK;
5645 if (bus_attr->qas_enabled)
5646 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS;
5648 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS;
5653 * ipr_build_mode_select - Build a mode select command
5654 * @ipr_cmd: ipr command struct
5655 * @res_handle: resource handle to send command to
5656 * @parm: Byte 2 of Mode Sense command
5657 * @dma_addr: DMA buffer address
5658 * @xfer_len: data transfer length
5663 static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd,
5664 __be32 res_handle, u8 parm, u32 dma_addr,
5667 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
5668 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5670 ioarcb->res_handle = res_handle;
5671 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
5672 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5673 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT;
5674 ioarcb->cmd_pkt.cdb[1] = parm;
5675 ioarcb->cmd_pkt.cdb[4] = xfer_len;
5677 ioadl->flags_and_data_len =
5678 cpu_to_be32(IPR_IOADL_FLAGS_WRITE_LAST | xfer_len);
5679 ioadl->address = cpu_to_be32(dma_addr);
5680 ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
5681 ioarcb->write_data_transfer_length = cpu_to_be32(xfer_len);
5685 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA
5686 * @ipr_cmd: ipr command struct
5688 * This function sets up the SCSI bus attributes and sends
5689 * a Mode Select for Page 28 to activate them.
5694 static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
5696 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5697 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
5701 ipr_scsi_bus_speed_limit(ioa_cfg);
5702 ipr_check_term_power(ioa_cfg, mode_pages);
5703 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages);
5704 length = mode_pages->hdr.length + 1;
5705 mode_pages->hdr.length = 0;
5707 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
5708 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
5711 ipr_cmd->job_step = ipr_setup_write_cache;
5712 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
5715 return IPR_RC_JOB_RETURN;
5719 * ipr_build_mode_sense - Builds a mode sense command
5720 * @ipr_cmd: ipr command struct
5721 * @res: resource entry struct
5722 * @parm: Byte 2 of mode sense command
5723 * @dma_addr: DMA address of mode sense buffer
5724 * @xfer_len: Size of DMA buffer
5729 static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
5731 u8 parm, u32 dma_addr, u8 xfer_len)
5733 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
5734 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5736 ioarcb->res_handle = res_handle;
5737 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE;
5738 ioarcb->cmd_pkt.cdb[2] = parm;
5739 ioarcb->cmd_pkt.cdb[4] = xfer_len;
5740 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
5742 ioadl->flags_and_data_len =
5743 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | xfer_len);
5744 ioadl->address = cpu_to_be32(dma_addr);
5745 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
5746 ioarcb->read_data_transfer_length = cpu_to_be32(xfer_len);
5750 * ipr_reset_cmd_failed - Handle failure of IOA reset command
5751 * @ipr_cmd: ipr command struct
5753 * This function handles the failure of an IOA bringup command.
5758 static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
5760 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5761 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
5763 dev_err(&ioa_cfg->pdev->dev,
5764 "0x%02X failed with IOASC: 0x%08X\n",
5765 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
5767 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5768 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5769 return IPR_RC_JOB_RETURN;
5773 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
5774 * @ipr_cmd: ipr command struct
5776 * This function handles the failure of a Mode Sense to the IOAFP.
5777 * Some adapters do not handle all mode pages.
5780 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
5782 static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
5784 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
5786 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
5787 ipr_cmd->job_step = ipr_setup_write_cache;
5788 return IPR_RC_JOB_CONTINUE;
5791 return ipr_reset_cmd_failed(ipr_cmd);
5795 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
5796 * @ipr_cmd: ipr command struct
5798 * This function send a Page 28 mode sense to the IOA to
5799 * retrieve SCSI bus attributes.
5804 static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
5806 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5809 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
5810 0x28, ioa_cfg->vpd_cbs_dma +
5811 offsetof(struct ipr_misc_cbs, mode_pages),
5812 sizeof(struct ipr_mode_pages));
5814 ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
5815 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed;
5817 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
5820 return IPR_RC_JOB_RETURN;
5824 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA
5825 * @ipr_cmd: ipr command struct
5827 * This function enables dual IOA RAID support if possible.
5832 static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd)
5834 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5835 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
5836 struct ipr_mode_page24 *mode_page;
5840 mode_page = ipr_get_mode_page(mode_pages, 0x24,
5841 sizeof(struct ipr_mode_page24));
5844 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF;
5846 length = mode_pages->hdr.length + 1;
5847 mode_pages->hdr.length = 0;
5849 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
5850 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
5853 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
5854 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
5857 return IPR_RC_JOB_RETURN;
5861 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense
5862 * @ipr_cmd: ipr command struct
5864 * This function handles the failure of a Mode Sense to the IOAFP.
5865 * Some adapters do not handle all mode pages.
5868 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
5870 static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd)
5872 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
5874 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
5875 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
5876 return IPR_RC_JOB_CONTINUE;
5879 return ipr_reset_cmd_failed(ipr_cmd);
5883 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA
5884 * @ipr_cmd: ipr command struct
5886 * This function send a mode sense to the IOA to retrieve
5887 * the IOA Advanced Function Control mode page.
5892 static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd)
5894 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5897 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
5898 0x24, ioa_cfg->vpd_cbs_dma +
5899 offsetof(struct ipr_misc_cbs, mode_pages),
5900 sizeof(struct ipr_mode_pages));
5902 ipr_cmd->job_step = ipr_ioafp_mode_select_page24;
5903 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed;
5905 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
5908 return IPR_RC_JOB_RETURN;
5912 * ipr_init_res_table - Initialize the resource table
5913 * @ipr_cmd: ipr command struct
5915 * This function looks through the existing resource table, comparing
5916 * it with the config table. This function will take care of old/new
5917 * devices and schedule adding/removing them from the mid-layer
5921 * IPR_RC_JOB_CONTINUE
5923 static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
5925 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5926 struct ipr_resource_entry *res, *temp;
5927 struct ipr_config_table_entry *cfgte;
5932 if (ioa_cfg->cfg_table->hdr.flags & IPR_UCODE_DOWNLOAD_REQ)
5933 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n");
5935 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue)
5936 list_move_tail(&res->queue, &old_res);
5938 for (i = 0; i < ioa_cfg->cfg_table->hdr.num_entries; i++) {
5939 cfgte = &ioa_cfg->cfg_table->dev[i];
5942 list_for_each_entry_safe(res, temp, &old_res, queue) {
5943 if (!memcmp(&res->cfgte.res_addr,
5944 &cfgte->res_addr, sizeof(cfgte->res_addr))) {
5945 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
5952 if (list_empty(&ioa_cfg->free_res_q)) {
5953 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n");
5958 res = list_entry(ioa_cfg->free_res_q.next,
5959 struct ipr_resource_entry, queue);
5960 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
5961 ipr_init_res_entry(res);
5966 memcpy(&res->cfgte, cfgte, sizeof(struct ipr_config_table_entry));
5969 list_for_each_entry_safe(res, temp, &old_res, queue) {
5971 res->del_from_ml = 1;
5972 res->cfgte.res_handle = IPR_INVALID_RES_HANDLE;
5973 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
5975 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
5979 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
5980 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24;
5982 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
5985 return IPR_RC_JOB_CONTINUE;
5989 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter.
5990 * @ipr_cmd: ipr command struct
5992 * This function sends a Query IOA Configuration command
5993 * to the adapter to retrieve the IOA configuration table.
5998 static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd)
6000 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6001 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6002 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
6003 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
6004 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
6007 if (cap->cap & IPR_CAP_DUAL_IOA_RAID)
6008 ioa_cfg->dual_raid = 1;
6009 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n",
6010 ucode_vpd->major_release, ucode_vpd->card_type,
6011 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]);
6012 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6013 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6015 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG;
6016 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_config_table) >> 8) & 0xff;
6017 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_config_table) & 0xff;
6019 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
6020 ioarcb->read_data_transfer_length =
6021 cpu_to_be32(sizeof(struct ipr_config_table));
6023 ioadl->address = cpu_to_be32(ioa_cfg->cfg_table_dma);
6024 ioadl->flags_and_data_len =
6025 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | sizeof(struct ipr_config_table));
6027 ipr_cmd->job_step = ipr_init_res_table;
6029 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6032 return IPR_RC_JOB_RETURN;
6036 * ipr_ioafp_inquiry - Send an Inquiry to the adapter.
6037 * @ipr_cmd: ipr command struct
6039 * This utility function sends an inquiry to the adapter.
6044 static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
6045 u32 dma_addr, u8 xfer_len)
6047 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6048 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
6051 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6052 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6054 ioarcb->cmd_pkt.cdb[0] = INQUIRY;
6055 ioarcb->cmd_pkt.cdb[1] = flags;
6056 ioarcb->cmd_pkt.cdb[2] = page;
6057 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6059 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
6060 ioarcb->read_data_transfer_length = cpu_to_be32(xfer_len);
6062 ioadl->address = cpu_to_be32(dma_addr);
6063 ioadl->flags_and_data_len =
6064 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | xfer_len);
6066 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6071 * ipr_inquiry_page_supported - Is the given inquiry page supported
6072 * @page0: inquiry page 0 buffer
6075 * This function determines if the specified inquiry page is supported.
6078 * 1 if page is supported / 0 if not
6080 static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page)
6084 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++)
6085 if (page0->page[i] == page)
6092 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter.
6093 * @ipr_cmd: ipr command struct
6095 * This function sends a Page 0xD0 inquiry to the adapter
6096 * to retrieve adapter capabilities.
6099 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6101 static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd)
6103 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6104 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
6105 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
6108 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
6109 memset(cap, 0, sizeof(*cap));
6111 if (ipr_inquiry_page_supported(page0, 0xD0)) {
6112 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0,
6113 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap),
6114 sizeof(struct ipr_inquiry_cap));
6115 return IPR_RC_JOB_RETURN;
6119 return IPR_RC_JOB_CONTINUE;
6123 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
6124 * @ipr_cmd: ipr command struct
6126 * This function sends a Page 3 inquiry to the adapter
6127 * to retrieve software VPD information.
6130 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6132 static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
6134 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6135 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
6139 if (!ipr_inquiry_page_supported(page0, 1))
6140 ioa_cfg->cache_state = CACHE_NONE;
6142 ipr_cmd->job_step = ipr_ioafp_cap_inquiry;
6144 ipr_ioafp_inquiry(ipr_cmd, 1, 3,
6145 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
6146 sizeof(struct ipr_inquiry_page3));
6149 return IPR_RC_JOB_RETURN;
6153 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
6154 * @ipr_cmd: ipr command struct
6156 * This function sends a Page 0 inquiry to the adapter
6157 * to retrieve supported inquiry pages.
6160 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6162 static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
6164 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6169 /* Grab the type out of the VPD and store it away */
6170 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4);
6172 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
6174 ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
6176 ipr_ioafp_inquiry(ipr_cmd, 1, 0,
6177 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data),
6178 sizeof(struct ipr_inquiry_page0));
6181 return IPR_RC_JOB_RETURN;
6185 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter.
6186 * @ipr_cmd: ipr command struct
6188 * This function sends a standard inquiry to the adapter.
6193 static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
6195 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6198 ipr_cmd->job_step = ipr_ioafp_page0_inquiry;
6200 ipr_ioafp_inquiry(ipr_cmd, 0, 0,
6201 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
6202 sizeof(struct ipr_ioa_vpd));
6205 return IPR_RC_JOB_RETURN;
6209 * ipr_ioafp_indentify_hrrq - Send Identify Host RRQ.
6210 * @ipr_cmd: ipr command struct
6212 * This function send an Identify Host Request Response Queue
6213 * command to establish the HRRQ with the adapter.
6218 static int ipr_ioafp_indentify_hrrq(struct ipr_cmnd *ipr_cmd)
6220 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6221 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6224 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
6226 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q;
6227 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6229 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6230 ioarcb->cmd_pkt.cdb[2] =
6231 ((u32) ioa_cfg->host_rrq_dma >> 24) & 0xff;
6232 ioarcb->cmd_pkt.cdb[3] =
6233 ((u32) ioa_cfg->host_rrq_dma >> 16) & 0xff;
6234 ioarcb->cmd_pkt.cdb[4] =
6235 ((u32) ioa_cfg->host_rrq_dma >> 8) & 0xff;
6236 ioarcb->cmd_pkt.cdb[5] =
6237 ((u32) ioa_cfg->host_rrq_dma) & 0xff;
6238 ioarcb->cmd_pkt.cdb[7] =
6239 ((sizeof(u32) * IPR_NUM_CMD_BLKS) >> 8) & 0xff;
6240 ioarcb->cmd_pkt.cdb[8] =
6241 (sizeof(u32) * IPR_NUM_CMD_BLKS) & 0xff;
6243 ipr_cmd->job_step = ipr_ioafp_std_inquiry;
6245 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6248 return IPR_RC_JOB_RETURN;
6252 * ipr_reset_timer_done - Adapter reset timer function
6253 * @ipr_cmd: ipr command struct
6255 * Description: This function is used in adapter reset processing
6256 * for timing events. If the reset_cmd pointer in the IOA
6257 * config struct is not this adapter's we are doing nested
6258 * resets and fail_all_ops will take care of freeing the
6264 static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd)
6266 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6267 unsigned long lock_flags = 0;
6269 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
6271 if (ioa_cfg->reset_cmd == ipr_cmd) {
6272 list_del(&ipr_cmd->queue);
6273 ipr_cmd->done(ipr_cmd);
6276 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
6280 * ipr_reset_start_timer - Start a timer for adapter reset job
6281 * @ipr_cmd: ipr command struct
6282 * @timeout: timeout value
6284 * Description: This function is used in adapter reset processing
6285 * for timing events. If the reset_cmd pointer in the IOA
6286 * config struct is not this adapter's we are doing nested
6287 * resets and fail_all_ops will take care of freeing the
6293 static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
6294 unsigned long timeout)
6296 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
6297 ipr_cmd->done = ipr_reset_ioa_job;
6299 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
6300 ipr_cmd->timer.expires = jiffies + timeout;
6301 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done;
6302 add_timer(&ipr_cmd->timer);
6306 * ipr_init_ioa_mem - Initialize ioa_cfg control block
6307 * @ioa_cfg: ioa cfg struct
6312 static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg)
6314 memset(ioa_cfg->host_rrq, 0, sizeof(u32) * IPR_NUM_CMD_BLKS);
6316 /* Initialize Host RRQ pointers */
6317 ioa_cfg->hrrq_start = ioa_cfg->host_rrq;
6318 ioa_cfg->hrrq_end = &ioa_cfg->host_rrq[IPR_NUM_CMD_BLKS - 1];
6319 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
6320 ioa_cfg->toggle_bit = 1;
6322 /* Zero out config table */
6323 memset(ioa_cfg->cfg_table, 0, sizeof(struct ipr_config_table));
6327 * ipr_reset_enable_ioa - Enable the IOA following a reset.
6328 * @ipr_cmd: ipr command struct
6330 * This function reinitializes some control blocks and
6331 * enables destructive diagnostics on the adapter.
6336 static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
6338 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6339 volatile u32 int_reg;
6342 ipr_cmd->job_step = ipr_ioafp_indentify_hrrq;
6343 ipr_init_ioa_mem(ioa_cfg);
6345 ioa_cfg->allow_interrupts = 1;
6346 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
6348 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
6349 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED),
6350 ioa_cfg->regs.clr_interrupt_mask_reg);
6351 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
6352 return IPR_RC_JOB_CONTINUE;
6355 /* Enable destructive diagnostics on IOA */
6356 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg);
6358 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg);
6359 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
6361 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n");
6363 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
6364 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
6365 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
6366 ipr_cmd->done = ipr_reset_ioa_job;
6367 add_timer(&ipr_cmd->timer);
6368 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
6371 return IPR_RC_JOB_RETURN;
6375 * ipr_reset_wait_for_dump - Wait for a dump to timeout.
6376 * @ipr_cmd: ipr command struct
6378 * This function is invoked when an adapter dump has run out
6379 * of processing time.
6382 * IPR_RC_JOB_CONTINUE
6384 static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd)
6386 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6388 if (ioa_cfg->sdt_state == GET_DUMP)
6389 ioa_cfg->sdt_state = ABORT_DUMP;
6391 ipr_cmd->job_step = ipr_reset_alert;
6393 return IPR_RC_JOB_CONTINUE;
6397 * ipr_unit_check_no_data - Log a unit check/no data error log
6398 * @ioa_cfg: ioa config struct
6400 * Logs an error indicating the adapter unit checked, but for some
6401 * reason, we were unable to fetch the unit check buffer.
6406 static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg)
6408 ioa_cfg->errors_logged++;
6409 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n");
6413 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA
6414 * @ioa_cfg: ioa config struct
6416 * Fetches the unit check buffer from the adapter by clocking the data
6417 * through the mailbox register.
6422 static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
6424 unsigned long mailbox;
6425 struct ipr_hostrcb *hostrcb;
6426 struct ipr_uc_sdt sdt;
6430 mailbox = readl(ioa_cfg->ioa_mailbox);
6432 if (!ipr_sdt_is_fmt2(mailbox)) {
6433 ipr_unit_check_no_data(ioa_cfg);
6437 memset(&sdt, 0, sizeof(struct ipr_uc_sdt));
6438 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt,
6439 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32));
6441 if (rc || (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE) ||
6442 !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY)) {
6443 ipr_unit_check_no_data(ioa_cfg);
6447 /* Find length of the first sdt entry (UC buffer) */
6448 length = (be32_to_cpu(sdt.entry[0].end_offset) -
6449 be32_to_cpu(sdt.entry[0].bar_str_offset)) & IPR_FMT2_MBX_ADDR_MASK;
6451 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next,
6452 struct ipr_hostrcb, queue);
6453 list_del(&hostrcb->queue);
6454 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam));
6456 rc = ipr_get_ldump_data_section(ioa_cfg,
6457 be32_to_cpu(sdt.entry[0].bar_str_offset),
6458 (__be32 *)&hostrcb->hcam,
6459 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32));
6462 ipr_handle_log_data(ioa_cfg, hostrcb);
6463 ioasc = be32_to_cpu(hostrcb->hcam.u.error.failing_dev_ioasc);
6464 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED &&
6465 ioa_cfg->sdt_state == GET_DUMP)
6466 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
6468 ipr_unit_check_no_data(ioa_cfg);
6470 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
6474 * ipr_reset_restore_cfg_space - Restore PCI config space.
6475 * @ipr_cmd: ipr command struct
6477 * Description: This function restores the saved PCI config space of
6478 * the adapter, fails all outstanding ops back to the callers, and
6479 * fetches the dump/unit check if applicable to this reset.
6482 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6484 static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
6486 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6490 rc = pci_restore_state(ioa_cfg->pdev);
6492 if (rc != PCIBIOS_SUCCESSFUL) {
6493 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
6494 return IPR_RC_JOB_CONTINUE;
6497 if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
6498 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
6499 return IPR_RC_JOB_CONTINUE;
6502 ipr_fail_all_ops(ioa_cfg);
6504 if (ioa_cfg->ioa_unit_checked) {
6505 ioa_cfg->ioa_unit_checked = 0;
6506 ipr_get_unit_check_buffer(ioa_cfg);
6507 ipr_cmd->job_step = ipr_reset_alert;
6508 ipr_reset_start_timer(ipr_cmd, 0);
6509 return IPR_RC_JOB_RETURN;
6512 if (ioa_cfg->in_ioa_bringdown) {
6513 ipr_cmd->job_step = ipr_ioa_bringdown_done;
6515 ipr_cmd->job_step = ipr_reset_enable_ioa;
6517 if (GET_DUMP == ioa_cfg->sdt_state) {
6518 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_TIMEOUT);
6519 ipr_cmd->job_step = ipr_reset_wait_for_dump;
6520 schedule_work(&ioa_cfg->work_q);
6521 return IPR_RC_JOB_RETURN;
6526 return IPR_RC_JOB_CONTINUE;
6530 * ipr_reset_bist_done - BIST has completed on the adapter.
6531 * @ipr_cmd: ipr command struct
6533 * Description: Unblock config space and resume the reset process.
6536 * IPR_RC_JOB_CONTINUE
6538 static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd)
6541 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev);
6542 ipr_cmd->job_step = ipr_reset_restore_cfg_space;
6544 return IPR_RC_JOB_CONTINUE;
6548 * ipr_reset_start_bist - Run BIST on the adapter.
6549 * @ipr_cmd: ipr command struct
6551 * Description: This function runs BIST on the adapter, then delays 2 seconds.
6554 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6556 static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
6558 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6562 pci_block_user_cfg_access(ioa_cfg->pdev);
6563 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START);
6565 if (rc != PCIBIOS_SUCCESSFUL) {
6566 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev);
6567 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
6568 rc = IPR_RC_JOB_CONTINUE;
6570 ipr_cmd->job_step = ipr_reset_bist_done;
6571 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
6572 rc = IPR_RC_JOB_RETURN;
6580 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter
6581 * @ipr_cmd: ipr command struct
6583 * Description: This clears PCI reset to the adapter and delays two seconds.
6588 static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd)
6591 pci_set_pcie_reset_state(ipr_cmd->ioa_cfg->pdev, pcie_deassert_reset);
6592 ipr_cmd->job_step = ipr_reset_bist_done;
6593 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
6595 return IPR_RC_JOB_RETURN;
6599 * ipr_reset_slot_reset - Reset the PCI slot of the adapter.
6600 * @ipr_cmd: ipr command struct
6602 * Description: This asserts PCI reset to the adapter.
6607 static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd)
6609 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6610 struct pci_dev *pdev = ioa_cfg->pdev;
6613 pci_block_user_cfg_access(pdev);
6614 pci_set_pcie_reset_state(pdev, pcie_warm_reset);
6615 ipr_cmd->job_step = ipr_reset_slot_reset_done;
6616 ipr_reset_start_timer(ipr_cmd, IPR_PCI_RESET_TIMEOUT);
6618 return IPR_RC_JOB_RETURN;
6622 * ipr_reset_allowed - Query whether or not IOA can be reset
6623 * @ioa_cfg: ioa config struct
6626 * 0 if reset not allowed / non-zero if reset is allowed
6628 static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg)
6630 volatile u32 temp_reg;
6632 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
6633 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0);
6637 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA.
6638 * @ipr_cmd: ipr command struct
6640 * Description: This function waits for adapter permission to run BIST,
6641 * then runs BIST. If the adapter does not give permission after a
6642 * reasonable time, we will reset the adapter anyway. The impact of
6643 * resetting the adapter without warning the adapter is the risk of
6644 * losing the persistent error log on the adapter. If the adapter is
6645 * reset while it is writing to the flash on the adapter, the flash
6646 * segment will have bad ECC and be zeroed.
6649 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6651 static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd)
6653 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6654 int rc = IPR_RC_JOB_RETURN;
6656 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) {
6657 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
6658 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
6660 ipr_cmd->job_step = ioa_cfg->reset;
6661 rc = IPR_RC_JOB_CONTINUE;
6668 * ipr_reset_alert_part2 - Alert the adapter of a pending reset
6669 * @ipr_cmd: ipr command struct
6671 * Description: This function alerts the adapter that it will be reset.
6672 * If memory space is not currently enabled, proceed directly
6673 * to running BIST on the adapter. The timer must always be started
6674 * so we guarantee we do not run BIST from ipr_isr.
6679 static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd)
6681 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6686 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg);
6688 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) {
6689 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
6690 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg);
6691 ipr_cmd->job_step = ipr_reset_wait_to_start_bist;
6693 ipr_cmd->job_step = ioa_cfg->reset;
6696 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
6697 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
6700 return IPR_RC_JOB_RETURN;
6704 * ipr_reset_ucode_download_done - Microcode download completion
6705 * @ipr_cmd: ipr command struct
6707 * Description: This function unmaps the microcode download buffer.
6710 * IPR_RC_JOB_CONTINUE
6712 static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd)
6714 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6715 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
6717 pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist,
6718 sglist->num_sg, DMA_TO_DEVICE);
6720 ipr_cmd->job_step = ipr_reset_alert;
6721 return IPR_RC_JOB_CONTINUE;
6725 * ipr_reset_ucode_download - Download microcode to the adapter
6726 * @ipr_cmd: ipr command struct
6728 * Description: This function checks to see if it there is microcode
6729 * to download to the adapter. If there is, a download is performed.
6732 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6734 static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
6736 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6737 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
6740 ipr_cmd->job_step = ipr_reset_alert;
6743 return IPR_RC_JOB_CONTINUE;
6745 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6746 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6747 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER;
6748 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE;
6749 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16;
6750 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
6751 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
6753 ipr_build_ucode_ioadl(ipr_cmd, sglist);
6754 ipr_cmd->job_step = ipr_reset_ucode_download_done;
6756 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
6757 IPR_WRITE_BUFFER_TIMEOUT);
6760 return IPR_RC_JOB_RETURN;
6764 * ipr_reset_shutdown_ioa - Shutdown the adapter
6765 * @ipr_cmd: ipr command struct
6767 * Description: This function issues an adapter shutdown of the
6768 * specified type to the specified adapter as part of the
6769 * adapter reset job.
6772 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6774 static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
6776 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6777 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type;
6778 unsigned long timeout;
6779 int rc = IPR_RC_JOB_CONTINUE;
6782 if (shutdown_type != IPR_SHUTDOWN_NONE && !ioa_cfg->ioa_is_dead) {
6783 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6784 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6785 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
6786 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type;
6788 if (shutdown_type == IPR_SHUTDOWN_NORMAL)
6789 timeout = IPR_SHUTDOWN_TIMEOUT;
6790 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL)
6791 timeout = IPR_INTERNAL_TIMEOUT;
6792 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
6793 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO;
6795 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT;
6797 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout);
6799 rc = IPR_RC_JOB_RETURN;
6800 ipr_cmd->job_step = ipr_reset_ucode_download;
6802 ipr_cmd->job_step = ipr_reset_alert;
6809 * ipr_reset_ioa_job - Adapter reset job
6810 * @ipr_cmd: ipr command struct
6812 * Description: This function is the job router for the adapter reset job.
6817 static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
6820 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6823 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
6825 if (ioa_cfg->reset_cmd != ipr_cmd) {
6827 * We are doing nested adapter resets and this is
6828 * not the current reset job.
6830 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6834 if (IPR_IOASC_SENSE_KEY(ioasc)) {
6835 rc = ipr_cmd->job_step_failed(ipr_cmd);
6836 if (rc == IPR_RC_JOB_RETURN)
6840 ipr_reinit_ipr_cmnd(ipr_cmd);
6841 ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
6842 rc = ipr_cmd->job_step(ipr_cmd);
6843 } while(rc == IPR_RC_JOB_CONTINUE);
6847 * _ipr_initiate_ioa_reset - Initiate an adapter reset
6848 * @ioa_cfg: ioa config struct
6849 * @job_step: first job step of reset job
6850 * @shutdown_type: shutdown type
6852 * Description: This function will initiate the reset of the given adapter
6853 * starting at the selected job step.
6854 * If the caller needs to wait on the completion of the reset,
6855 * the caller must sleep on the reset_wait_q.
6860 static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
6861 int (*job_step) (struct ipr_cmnd *),
6862 enum ipr_shutdown_type shutdown_type)
6864 struct ipr_cmnd *ipr_cmd;
6866 ioa_cfg->in_reset_reload = 1;
6867 ioa_cfg->allow_cmds = 0;
6868 scsi_block_requests(ioa_cfg->host);
6870 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
6871 ioa_cfg->reset_cmd = ipr_cmd;
6872 ipr_cmd->job_step = job_step;
6873 ipr_cmd->u.shutdown_type = shutdown_type;
6875 ipr_reset_ioa_job(ipr_cmd);
6879 * ipr_initiate_ioa_reset - Initiate an adapter reset
6880 * @ioa_cfg: ioa config struct
6881 * @shutdown_type: shutdown type
6883 * Description: This function will initiate the reset of the given adapter.
6884 * If the caller needs to wait on the completion of the reset,
6885 * the caller must sleep on the reset_wait_q.
6890 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
6891 enum ipr_shutdown_type shutdown_type)
6893 if (ioa_cfg->ioa_is_dead)
6896 if (ioa_cfg->in_reset_reload && ioa_cfg->sdt_state == GET_DUMP)
6897 ioa_cfg->sdt_state = ABORT_DUMP;
6899 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) {
6900 dev_err(&ioa_cfg->pdev->dev,
6901 "IOA taken offline - error recovery failed\n");
6903 ioa_cfg->reset_retries = 0;
6904 ioa_cfg->ioa_is_dead = 1;
6906 if (ioa_cfg->in_ioa_bringdown) {
6907 ioa_cfg->reset_cmd = NULL;
6908 ioa_cfg->in_reset_reload = 0;
6909 ipr_fail_all_ops(ioa_cfg);
6910 wake_up_all(&ioa_cfg->reset_wait_q);
6912 spin_unlock_irq(ioa_cfg->host->host_lock);
6913 scsi_unblock_requests(ioa_cfg->host);
6914 spin_lock_irq(ioa_cfg->host->host_lock);
6917 ioa_cfg->in_ioa_bringdown = 1;
6918 shutdown_type = IPR_SHUTDOWN_NONE;
6922 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa,
6927 * ipr_reset_freeze - Hold off all I/O activity
6928 * @ipr_cmd: ipr command struct
6930 * Description: If the PCI slot is frozen, hold off all I/O
6931 * activity; then, as soon as the slot is available again,
6932 * initiate an adapter reset.
6934 static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd)
6936 /* Disallow new interrupts, avoid loop */
6937 ipr_cmd->ioa_cfg->allow_interrupts = 0;
6938 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
6939 ipr_cmd->done = ipr_reset_ioa_job;
6940 return IPR_RC_JOB_RETURN;
6944 * ipr_pci_frozen - Called when slot has experienced a PCI bus error.
6945 * @pdev: PCI device struct
6947 * Description: This routine is called to tell us that the PCI bus
6948 * is down. Can't do anything here, except put the device driver
6949 * into a holding pattern, waiting for the PCI bus to come back.
6951 static void ipr_pci_frozen(struct pci_dev *pdev)
6953 unsigned long flags = 0;
6954 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
6956 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6957 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE);
6958 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6962 * ipr_pci_slot_reset - Called when PCI slot has been reset.
6963 * @pdev: PCI device struct
6965 * Description: This routine is called by the pci error recovery
6966 * code after the PCI slot has been reset, just before we
6967 * should resume normal operations.
6969 static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev)
6971 unsigned long flags = 0;
6972 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
6974 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6975 if (ioa_cfg->needs_warm_reset)
6976 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
6978 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space,
6980 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6981 return PCI_ERS_RESULT_RECOVERED;
6985 * ipr_pci_perm_failure - Called when PCI slot is dead for good.
6986 * @pdev: PCI device struct
6988 * Description: This routine is called when the PCI bus has
6989 * permanently failed.
6991 static void ipr_pci_perm_failure(struct pci_dev *pdev)
6993 unsigned long flags = 0;
6994 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
6996 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6997 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
6998 ioa_cfg->sdt_state = ABORT_DUMP;
6999 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES;
7000 ioa_cfg->in_ioa_bringdown = 1;
7001 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7002 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
7006 * ipr_pci_error_detected - Called when a PCI error is detected.
7007 * @pdev: PCI device struct
7008 * @state: PCI channel state
7010 * Description: Called when a PCI error is detected.
7013 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
7015 static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
7016 pci_channel_state_t state)
7019 case pci_channel_io_frozen:
7020 ipr_pci_frozen(pdev);
7021 return PCI_ERS_RESULT_NEED_RESET;
7022 case pci_channel_io_perm_failure:
7023 ipr_pci_perm_failure(pdev);
7024 return PCI_ERS_RESULT_DISCONNECT;
7029 return PCI_ERS_RESULT_NEED_RESET;
7033 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..)
7034 * @ioa_cfg: ioa cfg struct
7036 * Description: This is the second phase of adapter intialization
7037 * This function takes care of initilizing the adapter to the point
7038 * where it can accept new commands.
7041 * 0 on sucess / -EIO on failure
7043 static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
7046 unsigned long host_lock_flags = 0;
7049 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7050 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
7051 if (ioa_cfg->needs_hard_reset) {
7052 ioa_cfg->needs_hard_reset = 0;
7053 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7055 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa,
7058 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7059 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
7060 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7062 if (ioa_cfg->ioa_is_dead) {
7064 } else if (ipr_invalid_adapter(ioa_cfg)) {
7068 dev_err(&ioa_cfg->pdev->dev,
7069 "Adapter not supported in this hardware configuration.\n");
7072 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7079 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter
7080 * @ioa_cfg: ioa config struct
7085 static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
7089 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
7090 if (ioa_cfg->ipr_cmnd_list[i])
7091 pci_pool_free(ioa_cfg->ipr_cmd_pool,
7092 ioa_cfg->ipr_cmnd_list[i],
7093 ioa_cfg->ipr_cmnd_list_dma[i]);
7095 ioa_cfg->ipr_cmnd_list[i] = NULL;
7098 if (ioa_cfg->ipr_cmd_pool)
7099 pci_pool_destroy (ioa_cfg->ipr_cmd_pool);
7101 ioa_cfg->ipr_cmd_pool = NULL;
7105 * ipr_free_mem - Frees memory allocated for an adapter
7106 * @ioa_cfg: ioa cfg struct
7111 static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg)
7115 kfree(ioa_cfg->res_entries);
7116 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs),
7117 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
7118 ipr_free_cmd_blks(ioa_cfg);
7119 pci_free_consistent(ioa_cfg->pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
7120 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
7121 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_config_table),
7123 ioa_cfg->cfg_table_dma);
7125 for (i = 0; i < IPR_NUM_HCAMS; i++) {
7126 pci_free_consistent(ioa_cfg->pdev,
7127 sizeof(struct ipr_hostrcb),
7128 ioa_cfg->hostrcb[i],
7129 ioa_cfg->hostrcb_dma[i]);
7132 ipr_free_dump(ioa_cfg);
7133 kfree(ioa_cfg->trace);
7137 * ipr_free_all_resources - Free all allocated resources for an adapter.
7138 * @ipr_cmd: ipr command struct
7140 * This function frees all allocated resources for the
7141 * specified adapter.
7146 static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
7148 struct pci_dev *pdev = ioa_cfg->pdev;
7151 free_irq(pdev->irq, ioa_cfg);
7152 iounmap(ioa_cfg->hdw_dma_regs);
7153 pci_release_regions(pdev);
7154 ipr_free_mem(ioa_cfg);
7155 scsi_host_put(ioa_cfg->host);
7156 pci_disable_device(pdev);
7161 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter
7162 * @ioa_cfg: ioa config struct
7165 * 0 on success / -ENOMEM on allocation failure
7167 static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
7169 struct ipr_cmnd *ipr_cmd;
7170 struct ipr_ioarcb *ioarcb;
7171 dma_addr_t dma_addr;
7174 ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev,
7175 sizeof(struct ipr_cmnd), 8, 0);
7177 if (!ioa_cfg->ipr_cmd_pool)
7180 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
7181 ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr);
7184 ipr_free_cmd_blks(ioa_cfg);
7188 memset(ipr_cmd, 0, sizeof(*ipr_cmd));
7189 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd;
7190 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr;
7192 ioarcb = &ipr_cmd->ioarcb;
7193 ioarcb->ioarcb_host_pci_addr = cpu_to_be32(dma_addr);
7194 ioarcb->host_response_handle = cpu_to_be32(i << 2);
7195 ioarcb->write_ioadl_addr =
7196 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioadl));
7197 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
7198 ioarcb->ioasa_host_pci_addr =
7199 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioasa));
7200 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa));
7201 ipr_cmd->cmd_index = i;
7202 ipr_cmd->ioa_cfg = ioa_cfg;
7203 ipr_cmd->sense_buffer_dma = dma_addr +
7204 offsetof(struct ipr_cmnd, sense_buffer);
7206 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
7213 * ipr_alloc_mem - Allocate memory for an adapter
7214 * @ioa_cfg: ioa config struct
7217 * 0 on success / non-zero for error
7219 static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
7221 struct pci_dev *pdev = ioa_cfg->pdev;
7222 int i, rc = -ENOMEM;
7225 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) *
7226 IPR_MAX_PHYSICAL_DEVS, GFP_KERNEL);
7228 if (!ioa_cfg->res_entries)
7231 for (i = 0; i < IPR_MAX_PHYSICAL_DEVS; i++)
7232 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
7234 ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev,
7235 sizeof(struct ipr_misc_cbs),
7236 &ioa_cfg->vpd_cbs_dma);
7238 if (!ioa_cfg->vpd_cbs)
7239 goto out_free_res_entries;
7241 if (ipr_alloc_cmd_blks(ioa_cfg))
7242 goto out_free_vpd_cbs;
7244 ioa_cfg->host_rrq = pci_alloc_consistent(ioa_cfg->pdev,
7245 sizeof(u32) * IPR_NUM_CMD_BLKS,
7246 &ioa_cfg->host_rrq_dma);
7248 if (!ioa_cfg->host_rrq)
7249 goto out_ipr_free_cmd_blocks;
7251 ioa_cfg->cfg_table = pci_alloc_consistent(ioa_cfg->pdev,
7252 sizeof(struct ipr_config_table),
7253 &ioa_cfg->cfg_table_dma);
7255 if (!ioa_cfg->cfg_table)
7256 goto out_free_host_rrq;
7258 for (i = 0; i < IPR_NUM_HCAMS; i++) {
7259 ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev,
7260 sizeof(struct ipr_hostrcb),
7261 &ioa_cfg->hostrcb_dma[i]);
7263 if (!ioa_cfg->hostrcb[i])
7264 goto out_free_hostrcb_dma;
7266 ioa_cfg->hostrcb[i]->hostrcb_dma =
7267 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam);
7268 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg;
7269 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
7272 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) *
7273 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL);
7275 if (!ioa_cfg->trace)
7276 goto out_free_hostrcb_dma;
7283 out_free_hostrcb_dma:
7285 pci_free_consistent(pdev, sizeof(struct ipr_hostrcb),
7286 ioa_cfg->hostrcb[i],
7287 ioa_cfg->hostrcb_dma[i]);
7289 pci_free_consistent(pdev, sizeof(struct ipr_config_table),
7290 ioa_cfg->cfg_table, ioa_cfg->cfg_table_dma);
7292 pci_free_consistent(pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
7293 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
7294 out_ipr_free_cmd_blocks:
7295 ipr_free_cmd_blks(ioa_cfg);
7297 pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs),
7298 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
7299 out_free_res_entries:
7300 kfree(ioa_cfg->res_entries);
7305 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values
7306 * @ioa_cfg: ioa config struct
7311 static void __devinit ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg)
7315 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
7316 ioa_cfg->bus_attr[i].bus = i;
7317 ioa_cfg->bus_attr[i].qas_enabled = 0;
7318 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH;
7319 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds))
7320 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed];
7322 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE;
7327 * ipr_init_ioa_cfg - Initialize IOA config struct
7328 * @ioa_cfg: ioa config struct
7329 * @host: scsi host struct
7330 * @pdev: PCI dev struct
7335 static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
7336 struct Scsi_Host *host, struct pci_dev *pdev)
7338 const struct ipr_interrupt_offsets *p;
7339 struct ipr_interrupts *t;
7342 ioa_cfg->host = host;
7343 ioa_cfg->pdev = pdev;
7344 ioa_cfg->log_level = ipr_log_level;
7345 ioa_cfg->doorbell = IPR_DOORBELL;
7346 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
7347 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
7348 sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL);
7349 sprintf(ioa_cfg->ipr_pending_label, IPR_PENDQ_LABEL);
7350 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START);
7351 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL);
7352 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL);
7353 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL);
7355 INIT_LIST_HEAD(&ioa_cfg->free_q);
7356 INIT_LIST_HEAD(&ioa_cfg->pending_q);
7357 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q);
7358 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q);
7359 INIT_LIST_HEAD(&ioa_cfg->free_res_q);
7360 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
7361 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
7362 init_waitqueue_head(&ioa_cfg->reset_wait_q);
7363 ioa_cfg->sdt_state = INACTIVE;
7364 if (ipr_enable_cache)
7365 ioa_cfg->cache_state = CACHE_ENABLED;
7367 ioa_cfg->cache_state = CACHE_DISABLED;
7369 ipr_initialize_bus_attr(ioa_cfg);
7371 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS;
7372 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET;
7373 host->max_channel = IPR_MAX_BUS_TO_SCAN;
7374 host->unique_id = host->host_no;
7375 host->max_cmd_len = IPR_MAX_CDB_LEN;
7376 pci_set_drvdata(pdev, ioa_cfg);
7378 p = &ioa_cfg->chip_cfg->regs;
7380 base = ioa_cfg->hdw_dma_regs;
7382 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
7383 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
7384 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
7385 t->clr_interrupt_reg = base + p->clr_interrupt_reg;
7386 t->sense_interrupt_reg = base + p->sense_interrupt_reg;
7387 t->ioarrin_reg = base + p->ioarrin_reg;
7388 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
7389 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
7390 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
7394 * ipr_get_chip_cfg - Find adapter chip configuration
7395 * @dev_id: PCI device id struct
7398 * ptr to chip config on success / NULL on failure
7400 static const struct ipr_chip_cfg_t * __devinit
7401 ipr_get_chip_cfg(const struct pci_device_id *dev_id)
7405 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++)
7406 if (ipr_chip[i].vendor == dev_id->vendor &&
7407 ipr_chip[i].device == dev_id->device)
7408 return ipr_chip[i].cfg;
7413 * ipr_probe_ioa - Allocates memory and does first stage of initialization
7414 * @pdev: PCI device struct
7415 * @dev_id: PCI device id struct
7418 * 0 on success / non-zero on failure
7420 static int __devinit ipr_probe_ioa(struct pci_dev *pdev,
7421 const struct pci_device_id *dev_id)
7423 struct ipr_ioa_cfg *ioa_cfg;
7424 struct Scsi_Host *host;
7425 unsigned long ipr_regs_pci;
7426 void __iomem *ipr_regs;
7427 int rc = PCIBIOS_SUCCESSFUL;
7428 volatile u32 mask, uproc, interrupts;
7432 if ((rc = pci_enable_device(pdev))) {
7433 dev_err(&pdev->dev, "Cannot enable adapter\n");
7437 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
7439 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
7442 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n");
7447 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
7448 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
7449 ata_host_init(&ioa_cfg->ata_host, &pdev->dev,
7450 sata_port_info.flags, &ipr_sata_ops);
7452 ioa_cfg->chip_cfg = ipr_get_chip_cfg(dev_id);
7454 if (!ioa_cfg->chip_cfg) {
7455 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n",
7456 dev_id->vendor, dev_id->device);
7457 goto out_scsi_host_put;
7460 if (ipr_transop_timeout)
7461 ioa_cfg->transop_timeout = ipr_transop_timeout;
7462 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT)
7463 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT;
7465 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT;
7467 rc = pci_read_config_byte(pdev, PCI_REVISION_ID, &ioa_cfg->revid);
7469 if (rc != PCIBIOS_SUCCESSFUL) {
7470 dev_err(&pdev->dev, "Failed to read PCI revision ID\n");
7472 goto out_scsi_host_put;
7475 ipr_regs_pci = pci_resource_start(pdev, 0);
7477 rc = pci_request_regions(pdev, IPR_NAME);
7480 "Couldn't register memory range of registers\n");
7481 goto out_scsi_host_put;
7484 ipr_regs = ioremap(ipr_regs_pci, pci_resource_len(pdev, 0));
7488 "Couldn't map memory range of registers\n");
7490 goto out_release_regions;
7493 ioa_cfg->hdw_dma_regs = ipr_regs;
7494 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci;
7495 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs;
7497 ipr_init_ioa_cfg(ioa_cfg, host, pdev);
7499 pci_set_master(pdev);
7501 rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
7503 dev_err(&pdev->dev, "Failed to set PCI DMA mask\n");
7507 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
7508 ioa_cfg->chip_cfg->cache_line_size);
7510 if (rc != PCIBIOS_SUCCESSFUL) {
7511 dev_err(&pdev->dev, "Write of cache line size failed\n");
7516 /* Save away PCI config space for use following IOA reset */
7517 rc = pci_save_state(pdev);
7519 if (rc != PCIBIOS_SUCCESSFUL) {
7520 dev_err(&pdev->dev, "Failed to save PCI config space\n");
7525 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg)))
7528 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg)))
7531 rc = ipr_alloc_mem(ioa_cfg);
7534 "Couldn't allocate enough memory for device driver!\n");
7539 * If HRRQ updated interrupt is not masked, or reset alert is set,
7540 * the card is in an unknown state and needs a hard reset
7542 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7543 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg);
7544 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg);
7545 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT))
7546 ioa_cfg->needs_hard_reset = 1;
7547 if (interrupts & IPR_PCII_ERROR_INTERRUPTS)
7548 ioa_cfg->needs_hard_reset = 1;
7549 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED)
7550 ioa_cfg->ioa_unit_checked = 1;
7552 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
7553 rc = request_irq(pdev->irq, ipr_isr, IRQF_SHARED, IPR_NAME, ioa_cfg);
7556 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",
7561 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) ||
7562 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) {
7563 ioa_cfg->needs_warm_reset = 1;
7564 ioa_cfg->reset = ipr_reset_slot_reset;
7566 ioa_cfg->reset = ipr_reset_start_bist;
7568 spin_lock(&ipr_driver_lock);
7569 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head);
7570 spin_unlock(&ipr_driver_lock);
7577 ipr_free_mem(ioa_cfg);
7580 out_release_regions:
7581 pci_release_regions(pdev);
7583 scsi_host_put(host);
7585 pci_disable_device(pdev);
7590 * ipr_scan_vsets - Scans for VSET devices
7591 * @ioa_cfg: ioa config struct
7593 * Description: Since the VSET resources do not follow SAM in that we can have
7594 * sparse LUNs with no LUN 0, we have to scan for these ourselves.
7599 static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg)
7603 for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++)
7604 for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ )
7605 scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun);
7609 * ipr_initiate_ioa_bringdown - Bring down an adapter
7610 * @ioa_cfg: ioa config struct
7611 * @shutdown_type: shutdown type
7613 * Description: This function will initiate bringing down the adapter.
7614 * This consists of issuing an IOA shutdown to the adapter
7615 * to flush the cache, and running BIST.
7616 * If the caller needs to wait on the completion of the reset,
7617 * the caller must sleep on the reset_wait_q.
7622 static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg,
7623 enum ipr_shutdown_type shutdown_type)
7626 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
7627 ioa_cfg->sdt_state = ABORT_DUMP;
7628 ioa_cfg->reset_retries = 0;
7629 ioa_cfg->in_ioa_bringdown = 1;
7630 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
7635 * __ipr_remove - Remove a single adapter
7636 * @pdev: pci device struct
7638 * Adapter hot plug remove entry point.
7643 static void __ipr_remove(struct pci_dev *pdev)
7645 unsigned long host_lock_flags = 0;
7646 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7649 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7650 while(ioa_cfg->in_reset_reload) {
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 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7656 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
7658 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7659 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
7660 flush_scheduled_work();
7661 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7663 spin_lock(&ipr_driver_lock);
7664 list_del(&ioa_cfg->queue);
7665 spin_unlock(&ipr_driver_lock);
7667 if (ioa_cfg->sdt_state == ABORT_DUMP)
7668 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
7669 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7671 ipr_free_all_resources(ioa_cfg);
7677 * ipr_remove - IOA hot plug remove entry point
7678 * @pdev: pci device struct
7680 * Adapter hot plug remove entry point.
7685 static void ipr_remove(struct pci_dev *pdev)
7687 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7691 ipr_remove_trace_file(&ioa_cfg->host->shost_classdev.kobj,
7693 ipr_remove_dump_file(&ioa_cfg->host->shost_classdev.kobj,
7695 scsi_remove_host(ioa_cfg->host);
7703 * ipr_probe - Adapter hot plug add entry point
7706 * 0 on success / non-zero on failure
7708 static int __devinit ipr_probe(struct pci_dev *pdev,
7709 const struct pci_device_id *dev_id)
7711 struct ipr_ioa_cfg *ioa_cfg;
7714 rc = ipr_probe_ioa(pdev, dev_id);
7719 ioa_cfg = pci_get_drvdata(pdev);
7720 rc = ipr_probe_ioa_part2(ioa_cfg);
7727 rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
7734 rc = ipr_create_trace_file(&ioa_cfg->host->shost_classdev.kobj,
7738 scsi_remove_host(ioa_cfg->host);
7743 rc = ipr_create_dump_file(&ioa_cfg->host->shost_classdev.kobj,
7747 ipr_remove_trace_file(&ioa_cfg->host->shost_classdev.kobj,
7749 scsi_remove_host(ioa_cfg->host);
7754 scsi_scan_host(ioa_cfg->host);
7755 ipr_scan_vsets(ioa_cfg);
7756 scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN);
7757 ioa_cfg->allow_ml_add_del = 1;
7758 ioa_cfg->host->max_channel = IPR_VSET_BUS;
7759 schedule_work(&ioa_cfg->work_q);
7764 * ipr_shutdown - Shutdown handler.
7765 * @pdev: pci device struct
7767 * This function is invoked upon system shutdown/reboot. It will issue
7768 * an adapter shutdown to the adapter to flush the write cache.
7773 static void ipr_shutdown(struct pci_dev *pdev)
7775 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7776 unsigned long lock_flags = 0;
7778 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
7779 while(ioa_cfg->in_reset_reload) {
7780 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
7781 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
7782 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
7785 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
7786 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
7787 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
7790 static struct pci_device_id ipr_pci_table[] __devinitdata = {
7791 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
7792 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 },
7793 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
7794 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 },
7795 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
7796 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 },
7797 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
7798 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 },
7799 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
7800 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 },
7801 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
7802 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 },
7803 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
7804 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 },
7805 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
7806 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0,
7807 IPR_USE_LONG_TRANSOP_TIMEOUT },
7808 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
7809 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
7810 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
7811 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
7812 IPR_USE_LONG_TRANSOP_TIMEOUT },
7813 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
7814 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
7815 IPR_USE_LONG_TRANSOP_TIMEOUT },
7816 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
7817 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
7818 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
7819 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
7820 IPR_USE_LONG_TRANSOP_TIMEOUT},
7821 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
7822 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
7823 IPR_USE_LONG_TRANSOP_TIMEOUT },
7824 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
7825 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0,
7826 IPR_USE_LONG_TRANSOP_TIMEOUT },
7827 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
7828 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575D, 0, 0,
7829 IPR_USE_LONG_TRANSOP_TIMEOUT },
7830 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
7831 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 },
7832 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
7833 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0,
7834 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET },
7835 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
7836 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 },
7837 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
7838 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 },
7839 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
7840 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0,
7841 IPR_USE_LONG_TRANSOP_TIMEOUT },
7842 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
7843 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0,
7844 IPR_USE_LONG_TRANSOP_TIMEOUT },
7845 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SCAMP_E,
7846 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0,
7847 IPR_USE_LONG_TRANSOP_TIMEOUT },
7850 MODULE_DEVICE_TABLE(pci, ipr_pci_table);
7852 static struct pci_error_handlers ipr_err_handler = {
7853 .error_detected = ipr_pci_error_detected,
7854 .slot_reset = ipr_pci_slot_reset,
7857 static struct pci_driver ipr_driver = {
7859 .id_table = ipr_pci_table,
7861 .remove = ipr_remove,
7862 .shutdown = ipr_shutdown,
7863 .err_handler = &ipr_err_handler,
7864 .dynids.use_driver_data = 1
7868 * ipr_init - Module entry point
7871 * 0 on success / negative value on failure
7873 static int __init ipr_init(void)
7875 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n",
7876 IPR_DRIVER_VERSION, IPR_DRIVER_DATE);
7878 return pci_register_driver(&ipr_driver);
7882 * ipr_exit - Module unload
7884 * Module unload entry point.
7889 static void __exit ipr_exit(void)
7891 pci_unregister_driver(&ipr_driver);
7894 module_init(ipr_init);
7895 module_exit(ipr_exit);