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
2442 * @bin_attr: bin_attribute struct
2445 * @count: buffer size
2448 * number of bytes printed to buffer
2450 static ssize_t ipr_read_trace(struct kobject *kobj,
2451 struct bin_attribute *bin_attr,
2452 char *buf, loff_t off, size_t count)
2454 struct class_device *cdev = container_of(kobj,struct class_device,kobj);
2455 struct Scsi_Host *shost = class_to_shost(cdev);
2456 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2457 unsigned long lock_flags = 0;
2458 int size = IPR_TRACE_SIZE;
2459 char *src = (char *)ioa_cfg->trace;
2463 if (off + count > size) {
2468 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2469 memcpy(buf, &src[off], count);
2470 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2474 static struct bin_attribute ipr_trace_attr = {
2480 .read = ipr_read_trace,
2484 static const struct {
2485 enum ipr_cache_state state;
2487 } cache_state [] = {
2488 { CACHE_NONE, "none" },
2489 { CACHE_DISABLED, "disabled" },
2490 { CACHE_ENABLED, "enabled" }
2494 * ipr_show_write_caching - Show the write caching attribute
2495 * @class_dev: class device struct
2499 * number of bytes printed to buffer
2501 static ssize_t ipr_show_write_caching(struct class_device *class_dev, char *buf)
2503 struct Scsi_Host *shost = class_to_shost(class_dev);
2504 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2505 unsigned long lock_flags = 0;
2508 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2509 for (i = 0; i < ARRAY_SIZE(cache_state); i++) {
2510 if (cache_state[i].state == ioa_cfg->cache_state) {
2511 len = snprintf(buf, PAGE_SIZE, "%s\n", cache_state[i].name);
2515 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2521 * ipr_store_write_caching - Enable/disable adapter write cache
2522 * @class_dev: class_device struct
2524 * @count: buffer size
2526 * This function will enable/disable adapter write cache.
2529 * count on success / other on failure
2531 static ssize_t ipr_store_write_caching(struct class_device *class_dev,
2532 const char *buf, size_t count)
2534 struct Scsi_Host *shost = class_to_shost(class_dev);
2535 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2536 unsigned long lock_flags = 0;
2537 enum ipr_cache_state new_state = CACHE_INVALID;
2540 if (!capable(CAP_SYS_ADMIN))
2542 if (ioa_cfg->cache_state == CACHE_NONE)
2545 for (i = 0; i < ARRAY_SIZE(cache_state); i++) {
2546 if (!strncmp(cache_state[i].name, buf, strlen(cache_state[i].name))) {
2547 new_state = cache_state[i].state;
2552 if (new_state != CACHE_DISABLED && new_state != CACHE_ENABLED)
2555 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2556 if (ioa_cfg->cache_state == new_state) {
2557 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2561 ioa_cfg->cache_state = new_state;
2562 dev_info(&ioa_cfg->pdev->dev, "%s adapter write cache.\n",
2563 new_state == CACHE_ENABLED ? "Enabling" : "Disabling");
2564 if (!ioa_cfg->in_reset_reload)
2565 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
2566 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2567 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2572 static struct class_device_attribute ipr_ioa_cache_attr = {
2574 .name = "write_cache",
2575 .mode = S_IRUGO | S_IWUSR,
2577 .show = ipr_show_write_caching,
2578 .store = ipr_store_write_caching
2582 * ipr_show_fw_version - Show the firmware version
2583 * @class_dev: class device struct
2587 * number of bytes printed to buffer
2589 static ssize_t ipr_show_fw_version(struct class_device *class_dev, char *buf)
2591 struct Scsi_Host *shost = class_to_shost(class_dev);
2592 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2593 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
2594 unsigned long lock_flags = 0;
2597 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2598 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n",
2599 ucode_vpd->major_release, ucode_vpd->card_type,
2600 ucode_vpd->minor_release[0],
2601 ucode_vpd->minor_release[1]);
2602 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2606 static struct class_device_attribute ipr_fw_version_attr = {
2608 .name = "fw_version",
2611 .show = ipr_show_fw_version,
2615 * ipr_show_log_level - Show the adapter's error logging level
2616 * @class_dev: class device struct
2620 * number of bytes printed to buffer
2622 static ssize_t ipr_show_log_level(struct class_device *class_dev, char *buf)
2624 struct Scsi_Host *shost = class_to_shost(class_dev);
2625 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2626 unsigned long lock_flags = 0;
2629 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2630 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level);
2631 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2636 * ipr_store_log_level - Change the adapter's error logging level
2637 * @class_dev: class device struct
2641 * number of bytes printed to buffer
2643 static ssize_t ipr_store_log_level(struct class_device *class_dev,
2644 const char *buf, size_t count)
2646 struct Scsi_Host *shost = class_to_shost(class_dev);
2647 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2648 unsigned long lock_flags = 0;
2650 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2651 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10);
2652 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2656 static struct class_device_attribute ipr_log_level_attr = {
2658 .name = "log_level",
2659 .mode = S_IRUGO | S_IWUSR,
2661 .show = ipr_show_log_level,
2662 .store = ipr_store_log_level
2666 * ipr_store_diagnostics - IOA Diagnostics interface
2667 * @class_dev: class_device struct
2669 * @count: buffer size
2671 * This function will reset the adapter and wait a reasonable
2672 * amount of time for any errors that the adapter might log.
2675 * count on success / other on failure
2677 static ssize_t ipr_store_diagnostics(struct class_device *class_dev,
2678 const char *buf, size_t count)
2680 struct Scsi_Host *shost = class_to_shost(class_dev);
2681 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2682 unsigned long lock_flags = 0;
2685 if (!capable(CAP_SYS_ADMIN))
2688 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2689 while(ioa_cfg->in_reset_reload) {
2690 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2691 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2692 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2695 ioa_cfg->errors_logged = 0;
2696 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
2698 if (ioa_cfg->in_reset_reload) {
2699 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2700 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2702 /* Wait for a second for any errors to be logged */
2705 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2709 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2710 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged)
2712 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2717 static struct class_device_attribute ipr_diagnostics_attr = {
2719 .name = "run_diagnostics",
2722 .store = ipr_store_diagnostics
2726 * ipr_show_adapter_state - Show the adapter's state
2727 * @class_dev: class device struct
2731 * number of bytes printed to buffer
2733 static ssize_t ipr_show_adapter_state(struct class_device *class_dev, char *buf)
2735 struct Scsi_Host *shost = class_to_shost(class_dev);
2736 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2737 unsigned long lock_flags = 0;
2740 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2741 if (ioa_cfg->ioa_is_dead)
2742 len = snprintf(buf, PAGE_SIZE, "offline\n");
2744 len = snprintf(buf, PAGE_SIZE, "online\n");
2745 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2750 * ipr_store_adapter_state - Change adapter state
2751 * @class_dev: class_device struct
2753 * @count: buffer size
2755 * This function will change the adapter's state.
2758 * count on success / other on failure
2760 static ssize_t ipr_store_adapter_state(struct class_device *class_dev,
2761 const char *buf, size_t count)
2763 struct Scsi_Host *shost = class_to_shost(class_dev);
2764 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2765 unsigned long lock_flags;
2768 if (!capable(CAP_SYS_ADMIN))
2771 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2772 if (ioa_cfg->ioa_is_dead && !strncmp(buf, "online", 6)) {
2773 ioa_cfg->ioa_is_dead = 0;
2774 ioa_cfg->reset_retries = 0;
2775 ioa_cfg->in_ioa_bringdown = 0;
2776 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2778 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2779 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2784 static struct class_device_attribute ipr_ioa_state_attr = {
2787 .mode = S_IRUGO | S_IWUSR,
2789 .show = ipr_show_adapter_state,
2790 .store = ipr_store_adapter_state
2794 * ipr_store_reset_adapter - Reset the adapter
2795 * @class_dev: class_device struct
2797 * @count: buffer size
2799 * This function will reset the adapter.
2802 * count on success / other on failure
2804 static ssize_t ipr_store_reset_adapter(struct class_device *class_dev,
2805 const char *buf, size_t count)
2807 struct Scsi_Host *shost = class_to_shost(class_dev);
2808 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2809 unsigned long lock_flags;
2812 if (!capable(CAP_SYS_ADMIN))
2815 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2816 if (!ioa_cfg->in_reset_reload)
2817 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
2818 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2819 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2824 static struct class_device_attribute ipr_ioa_reset_attr = {
2826 .name = "reset_host",
2829 .store = ipr_store_reset_adapter
2833 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer
2834 * @buf_len: buffer length
2836 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather
2837 * list to use for microcode download
2840 * pointer to sglist / NULL on failure
2842 static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
2844 int sg_size, order, bsize_elem, num_elem, i, j;
2845 struct ipr_sglist *sglist;
2846 struct scatterlist *scatterlist;
2849 /* Get the minimum size per scatter/gather element */
2850 sg_size = buf_len / (IPR_MAX_SGLIST - 1);
2852 /* Get the actual size per element */
2853 order = get_order(sg_size);
2855 /* Determine the actual number of bytes per element */
2856 bsize_elem = PAGE_SIZE * (1 << order);
2858 /* Determine the actual number of sg entries needed */
2859 if (buf_len % bsize_elem)
2860 num_elem = (buf_len / bsize_elem) + 1;
2862 num_elem = buf_len / bsize_elem;
2864 /* Allocate a scatter/gather list for the DMA */
2865 sglist = kzalloc(sizeof(struct ipr_sglist) +
2866 (sizeof(struct scatterlist) * (num_elem - 1)),
2869 if (sglist == NULL) {
2874 scatterlist = sglist->scatterlist;
2876 sglist->order = order;
2877 sglist->num_sg = num_elem;
2879 /* Allocate a bunch of sg elements */
2880 for (i = 0; i < num_elem; i++) {
2881 page = alloc_pages(GFP_KERNEL, order);
2885 /* Free up what we already allocated */
2886 for (j = i - 1; j >= 0; j--)
2887 __free_pages(scatterlist[j].page, order);
2892 scatterlist[i].page = page;
2899 * ipr_free_ucode_buffer - Frees a microcode download buffer
2900 * @p_dnld: scatter/gather list pointer
2902 * Free a DMA'able ucode download buffer previously allocated with
2903 * ipr_alloc_ucode_buffer
2908 static void ipr_free_ucode_buffer(struct ipr_sglist *sglist)
2912 for (i = 0; i < sglist->num_sg; i++)
2913 __free_pages(sglist->scatterlist[i].page, sglist->order);
2919 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer
2920 * @sglist: scatter/gather list pointer
2921 * @buffer: buffer pointer
2922 * @len: buffer length
2924 * Copy a microcode image from a user buffer into a buffer allocated by
2925 * ipr_alloc_ucode_buffer
2928 * 0 on success / other on failure
2930 static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
2931 u8 *buffer, u32 len)
2933 int bsize_elem, i, result = 0;
2934 struct scatterlist *scatterlist;
2937 /* Determine the actual number of bytes per element */
2938 bsize_elem = PAGE_SIZE * (1 << sglist->order);
2940 scatterlist = sglist->scatterlist;
2942 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) {
2943 kaddr = kmap(scatterlist[i].page);
2944 memcpy(kaddr, buffer, bsize_elem);
2945 kunmap(scatterlist[i].page);
2947 scatterlist[i].length = bsize_elem;
2955 if (len % bsize_elem) {
2956 kaddr = kmap(scatterlist[i].page);
2957 memcpy(kaddr, buffer, len % bsize_elem);
2958 kunmap(scatterlist[i].page);
2960 scatterlist[i].length = len % bsize_elem;
2963 sglist->buffer_len = len;
2968 * ipr_build_ucode_ioadl - Build a microcode download IOADL
2969 * @ipr_cmd: ipr command struct
2970 * @sglist: scatter/gather list
2972 * Builds a microcode download IOA data list (IOADL).
2975 static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd,
2976 struct ipr_sglist *sglist)
2978 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
2979 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
2980 struct scatterlist *scatterlist = sglist->scatterlist;
2983 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
2984 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
2985 ioarcb->write_data_transfer_length = cpu_to_be32(sglist->buffer_len);
2986 ioarcb->write_ioadl_len =
2987 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
2989 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
2990 ioadl[i].flags_and_data_len =
2991 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i]));
2993 cpu_to_be32(sg_dma_address(&scatterlist[i]));
2996 ioadl[i-1].flags_and_data_len |=
2997 cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3001 * ipr_update_ioa_ucode - Update IOA's microcode
3002 * @ioa_cfg: ioa config struct
3003 * @sglist: scatter/gather list
3005 * Initiate an adapter reset to update the IOA's microcode
3008 * 0 on success / -EIO on failure
3010 static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg,
3011 struct ipr_sglist *sglist)
3013 unsigned long lock_flags;
3015 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3016 while(ioa_cfg->in_reset_reload) {
3017 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3018 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3019 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3022 if (ioa_cfg->ucode_sglist) {
3023 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3024 dev_err(&ioa_cfg->pdev->dev,
3025 "Microcode download already in progress\n");
3029 sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist,
3030 sglist->num_sg, DMA_TO_DEVICE);
3032 if (!sglist->num_dma_sg) {
3033 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3034 dev_err(&ioa_cfg->pdev->dev,
3035 "Failed to map microcode download buffer!\n");
3039 ioa_cfg->ucode_sglist = sglist;
3040 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3041 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3042 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3044 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3045 ioa_cfg->ucode_sglist = NULL;
3046 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3051 * ipr_store_update_fw - Update the firmware on the adapter
3052 * @class_dev: class_device struct
3054 * @count: buffer size
3056 * This function will update the firmware on the adapter.
3059 * count on success / other on failure
3061 static ssize_t ipr_store_update_fw(struct class_device *class_dev,
3062 const char *buf, size_t count)
3064 struct Scsi_Host *shost = class_to_shost(class_dev);
3065 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3066 struct ipr_ucode_image_header *image_hdr;
3067 const struct firmware *fw_entry;
3068 struct ipr_sglist *sglist;
3071 int len, result, dnld_size;
3073 if (!capable(CAP_SYS_ADMIN))
3076 len = snprintf(fname, 99, "%s", buf);
3077 fname[len-1] = '\0';
3079 if(request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
3080 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname);
3084 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data;
3086 if (be32_to_cpu(image_hdr->header_length) > fw_entry->size ||
3087 (ioa_cfg->vpd_cbs->page3_data.card_type &&
3088 ioa_cfg->vpd_cbs->page3_data.card_type != image_hdr->card_type)) {
3089 dev_err(&ioa_cfg->pdev->dev, "Invalid microcode buffer\n");
3090 release_firmware(fw_entry);
3094 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length);
3095 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length);
3096 sglist = ipr_alloc_ucode_buffer(dnld_size);
3099 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n");
3100 release_firmware(fw_entry);
3104 result = ipr_copy_ucode_buffer(sglist, src, dnld_size);
3107 dev_err(&ioa_cfg->pdev->dev,
3108 "Microcode buffer copy to DMA buffer failed\n");
3112 result = ipr_update_ioa_ucode(ioa_cfg, sglist);
3117 ipr_free_ucode_buffer(sglist);
3118 release_firmware(fw_entry);
3122 static struct class_device_attribute ipr_update_fw_attr = {
3124 .name = "update_fw",
3127 .store = ipr_store_update_fw
3130 static struct class_device_attribute *ipr_ioa_attrs[] = {
3131 &ipr_fw_version_attr,
3132 &ipr_log_level_attr,
3133 &ipr_diagnostics_attr,
3134 &ipr_ioa_state_attr,
3135 &ipr_ioa_reset_attr,
3136 &ipr_update_fw_attr,
3137 &ipr_ioa_cache_attr,
3141 #ifdef CONFIG_SCSI_IPR_DUMP
3143 * ipr_read_dump - Dump the adapter
3144 * @kobj: kobject struct
3145 * @bin_attr: bin_attribute struct
3148 * @count: buffer size
3151 * number of bytes printed to buffer
3153 static ssize_t ipr_read_dump(struct kobject *kobj,
3154 struct bin_attribute *bin_attr,
3155 char *buf, loff_t off, size_t count)
3157 struct class_device *cdev = container_of(kobj,struct class_device,kobj);
3158 struct Scsi_Host *shost = class_to_shost(cdev);
3159 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3160 struct ipr_dump *dump;
3161 unsigned long lock_flags = 0;
3166 if (!capable(CAP_SYS_ADMIN))
3169 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3170 dump = ioa_cfg->dump;
3172 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) {
3173 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3176 kref_get(&dump->kref);
3177 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3179 if (off > dump->driver_dump.hdr.len) {
3180 kref_put(&dump->kref, ipr_release_dump);
3184 if (off + count > dump->driver_dump.hdr.len) {
3185 count = dump->driver_dump.hdr.len - off;
3189 if (count && off < sizeof(dump->driver_dump)) {
3190 if (off + count > sizeof(dump->driver_dump))
3191 len = sizeof(dump->driver_dump) - off;
3194 src = (u8 *)&dump->driver_dump + off;
3195 memcpy(buf, src, len);
3201 off -= sizeof(dump->driver_dump);
3203 if (count && off < offsetof(struct ipr_ioa_dump, ioa_data)) {
3204 if (off + count > offsetof(struct ipr_ioa_dump, ioa_data))
3205 len = offsetof(struct ipr_ioa_dump, ioa_data) - off;
3208 src = (u8 *)&dump->ioa_dump + off;
3209 memcpy(buf, src, len);
3215 off -= offsetof(struct ipr_ioa_dump, ioa_data);
3218 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK))
3219 len = PAGE_ALIGN(off) - off;
3222 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT];
3223 src += off & ~PAGE_MASK;
3224 memcpy(buf, src, len);
3230 kref_put(&dump->kref, ipr_release_dump);
3235 * ipr_alloc_dump - Prepare for adapter dump
3236 * @ioa_cfg: ioa config struct
3239 * 0 on success / other on failure
3241 static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
3243 struct ipr_dump *dump;
3244 unsigned long lock_flags = 0;
3246 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
3249 ipr_err("Dump memory allocation failed\n");
3253 kref_init(&dump->kref);
3254 dump->ioa_cfg = ioa_cfg;
3256 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3258 if (INACTIVE != ioa_cfg->sdt_state) {
3259 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3264 ioa_cfg->dump = dump;
3265 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
3266 if (ioa_cfg->ioa_is_dead && !ioa_cfg->dump_taken) {
3267 ioa_cfg->dump_taken = 1;
3268 schedule_work(&ioa_cfg->work_q);
3270 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3276 * ipr_free_dump - Free adapter dump memory
3277 * @ioa_cfg: ioa config struct
3280 * 0 on success / other on failure
3282 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
3284 struct ipr_dump *dump;
3285 unsigned long lock_flags = 0;
3289 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3290 dump = ioa_cfg->dump;
3292 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3296 ioa_cfg->dump = NULL;
3297 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3299 kref_put(&dump->kref, ipr_release_dump);
3306 * ipr_write_dump - Setup dump state of adapter
3307 * @kobj: kobject struct
3308 * @bin_attr: bin_attribute struct
3311 * @count: buffer size
3314 * number of bytes printed to buffer
3316 static ssize_t ipr_write_dump(struct kobject *kobj,
3317 struct bin_attribute *bin_attr,
3318 char *buf, loff_t off, size_t count)
3320 struct class_device *cdev = container_of(kobj,struct class_device,kobj);
3321 struct Scsi_Host *shost = class_to_shost(cdev);
3322 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3325 if (!capable(CAP_SYS_ADMIN))
3329 rc = ipr_alloc_dump(ioa_cfg);
3330 else if (buf[0] == '0')
3331 rc = ipr_free_dump(ioa_cfg);
3341 static struct bin_attribute ipr_dump_attr = {
3344 .mode = S_IRUSR | S_IWUSR,
3347 .read = ipr_read_dump,
3348 .write = ipr_write_dump
3351 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; };
3355 * ipr_change_queue_depth - Change the device's queue depth
3356 * @sdev: scsi device struct
3357 * @qdepth: depth to set
3362 static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth)
3364 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
3365 struct ipr_resource_entry *res;
3366 unsigned long lock_flags = 0;
3368 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3369 res = (struct ipr_resource_entry *)sdev->hostdata;
3371 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN)
3372 qdepth = IPR_MAX_CMD_PER_ATA_LUN;
3373 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3375 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
3376 return sdev->queue_depth;
3380 * ipr_change_queue_type - Change the device's queue type
3381 * @dsev: scsi device struct
3382 * @tag_type: type of tags to use
3385 * actual queue type set
3387 static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type)
3389 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
3390 struct ipr_resource_entry *res;
3391 unsigned long lock_flags = 0;
3393 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3394 res = (struct ipr_resource_entry *)sdev->hostdata;
3397 if (ipr_is_gscsi(res) && sdev->tagged_supported) {
3399 * We don't bother quiescing the device here since the
3400 * adapter firmware does it for us.
3402 scsi_set_tag_type(sdev, tag_type);
3405 scsi_activate_tcq(sdev, sdev->queue_depth);
3407 scsi_deactivate_tcq(sdev, sdev->queue_depth);
3413 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3418 * ipr_show_adapter_handle - Show the adapter's resource handle for this device
3419 * @dev: device struct
3423 * number of bytes printed to buffer
3425 static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf)
3427 struct scsi_device *sdev = to_scsi_device(dev);
3428 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
3429 struct ipr_resource_entry *res;
3430 unsigned long lock_flags = 0;
3431 ssize_t len = -ENXIO;
3433 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3434 res = (struct ipr_resource_entry *)sdev->hostdata;
3436 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->cfgte.res_handle);
3437 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3441 static struct device_attribute ipr_adapter_handle_attr = {
3443 .name = "adapter_handle",
3446 .show = ipr_show_adapter_handle
3449 static struct device_attribute *ipr_dev_attrs[] = {
3450 &ipr_adapter_handle_attr,
3455 * ipr_biosparam - Return the HSC mapping
3456 * @sdev: scsi device struct
3457 * @block_device: block device pointer
3458 * @capacity: capacity of the device
3459 * @parm: Array containing returned HSC values.
3461 * This function generates the HSC parms that fdisk uses.
3462 * We want to make sure we return something that places partitions
3463 * on 4k boundaries for best performance with the IOA.
3468 static int ipr_biosparam(struct scsi_device *sdev,
3469 struct block_device *block_device,
3470 sector_t capacity, int *parm)
3478 cylinders = capacity;
3479 sector_div(cylinders, (128 * 32));
3484 parm[2] = cylinders;
3490 * ipr_find_starget - Find target based on bus/target.
3491 * @starget: scsi target struct
3494 * resource entry pointer if found / NULL if not found
3496 static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget)
3498 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
3499 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
3500 struct ipr_resource_entry *res;
3502 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3503 if ((res->cfgte.res_addr.bus == starget->channel) &&
3504 (res->cfgte.res_addr.target == starget->id) &&
3505 (res->cfgte.res_addr.lun == 0)) {
3513 static struct ata_port_info sata_port_info;
3516 * ipr_target_alloc - Prepare for commands to a SCSI target
3517 * @starget: scsi target struct
3519 * If the device is a SATA device, this function allocates an
3520 * ATA port with libata, else it does nothing.
3523 * 0 on success / non-0 on failure
3525 static int ipr_target_alloc(struct scsi_target *starget)
3527 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
3528 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
3529 struct ipr_sata_port *sata_port;
3530 struct ata_port *ap;
3531 struct ipr_resource_entry *res;
3532 unsigned long lock_flags;
3534 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3535 res = ipr_find_starget(starget);
3536 starget->hostdata = NULL;
3538 if (res && ipr_is_gata(res)) {
3539 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3540 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL);
3544 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost);
3546 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3547 sata_port->ioa_cfg = ioa_cfg;
3549 sata_port->res = res;
3551 res->sata_port = sata_port;
3552 ap->private_data = sata_port;
3553 starget->hostdata = sata_port;
3559 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3565 * ipr_target_destroy - Destroy a SCSI target
3566 * @starget: scsi target struct
3568 * If the device was a SATA device, this function frees the libata
3569 * ATA port, else it does nothing.
3572 static void ipr_target_destroy(struct scsi_target *starget)
3574 struct ipr_sata_port *sata_port = starget->hostdata;
3577 starget->hostdata = NULL;
3578 ata_sas_port_destroy(sata_port->ap);
3584 * ipr_find_sdev - Find device based on bus/target/lun.
3585 * @sdev: scsi device struct
3588 * resource entry pointer if found / NULL if not found
3590 static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev)
3592 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
3593 struct ipr_resource_entry *res;
3595 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3596 if ((res->cfgte.res_addr.bus == sdev->channel) &&
3597 (res->cfgte.res_addr.target == sdev->id) &&
3598 (res->cfgte.res_addr.lun == sdev->lun))
3606 * ipr_slave_destroy - Unconfigure a SCSI device
3607 * @sdev: scsi device struct
3612 static void ipr_slave_destroy(struct scsi_device *sdev)
3614 struct ipr_resource_entry *res;
3615 struct ipr_ioa_cfg *ioa_cfg;
3616 unsigned long lock_flags = 0;
3618 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
3620 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3621 res = (struct ipr_resource_entry *) sdev->hostdata;
3624 ata_port_disable(res->sata_port->ap);
3625 sdev->hostdata = NULL;
3627 res->sata_port = NULL;
3629 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3633 * ipr_slave_configure - Configure a SCSI device
3634 * @sdev: scsi device struct
3636 * This function configures the specified scsi device.
3641 static int ipr_slave_configure(struct scsi_device *sdev)
3643 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
3644 struct ipr_resource_entry *res;
3645 unsigned long lock_flags = 0;
3647 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3648 res = sdev->hostdata;
3650 if (ipr_is_af_dasd_device(res))
3651 sdev->type = TYPE_RAID;
3652 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) {
3653 sdev->scsi_level = 4;
3654 sdev->no_uld_attach = 1;
3656 if (ipr_is_vset_device(res)) {
3657 sdev->timeout = IPR_VSET_RW_TIMEOUT;
3658 blk_queue_max_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
3660 if (ipr_is_vset_device(res) || ipr_is_scsi_disk(res))
3661 sdev->allow_restart = 1;
3662 if (ipr_is_gata(res) && res->sata_port) {
3663 scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN);
3664 ata_sas_slave_configure(sdev, res->sata_port->ap);
3666 scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun);
3669 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3674 * ipr_ata_slave_alloc - Prepare for commands to a SATA device
3675 * @sdev: scsi device struct
3677 * This function initializes an ATA port so that future commands
3678 * sent through queuecommand will work.
3683 static int ipr_ata_slave_alloc(struct scsi_device *sdev)
3685 struct ipr_sata_port *sata_port = NULL;
3689 if (sdev->sdev_target)
3690 sata_port = sdev->sdev_target->hostdata;
3692 rc = ata_sas_port_init(sata_port->ap);
3694 ipr_slave_destroy(sdev);
3701 * ipr_slave_alloc - Prepare for commands to a device.
3702 * @sdev: scsi device struct
3704 * This function saves a pointer to the resource entry
3705 * in the scsi device struct if the device exists. We
3706 * can then use this pointer in ipr_queuecommand when
3707 * handling new commands.
3710 * 0 on success / -ENXIO if device does not exist
3712 static int ipr_slave_alloc(struct scsi_device *sdev)
3714 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
3715 struct ipr_resource_entry *res;
3716 unsigned long lock_flags;
3719 sdev->hostdata = NULL;
3721 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3723 res = ipr_find_sdev(sdev);
3728 sdev->hostdata = res;
3729 if (!ipr_is_naca_model(res))
3730 res->needs_sync_complete = 1;
3732 if (ipr_is_gata(res)) {
3733 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3734 return ipr_ata_slave_alloc(sdev);
3738 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3744 * ipr_eh_host_reset - Reset the host adapter
3745 * @scsi_cmd: scsi command struct
3750 static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd)
3752 struct ipr_ioa_cfg *ioa_cfg;
3756 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
3758 dev_err(&ioa_cfg->pdev->dev,
3759 "Adapter being reset as a result of error recovery.\n");
3761 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
3762 ioa_cfg->sdt_state = GET_DUMP;
3764 rc = ipr_reset_reload(ioa_cfg, IPR_SHUTDOWN_ABBREV);
3770 static int ipr_eh_host_reset(struct scsi_cmnd * cmd)
3774 spin_lock_irq(cmd->device->host->host_lock);
3775 rc = __ipr_eh_host_reset(cmd);
3776 spin_unlock_irq(cmd->device->host->host_lock);
3782 * ipr_device_reset - Reset the device
3783 * @ioa_cfg: ioa config struct
3784 * @res: resource entry struct
3786 * This function issues a device reset to the affected device.
3787 * If the device is a SCSI device, a LUN reset will be sent
3788 * to the device first. If that does not work, a target reset
3789 * will be sent. If the device is a SATA device, a PHY reset will
3793 * 0 on success / non-zero on failure
3795 static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
3796 struct ipr_resource_entry *res)
3798 struct ipr_cmnd *ipr_cmd;
3799 struct ipr_ioarcb *ioarcb;
3800 struct ipr_cmd_pkt *cmd_pkt;
3801 struct ipr_ioarcb_ata_regs *regs;
3805 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
3806 ioarcb = &ipr_cmd->ioarcb;
3807 cmd_pkt = &ioarcb->cmd_pkt;
3808 regs = &ioarcb->add_data.u.regs;
3810 ioarcb->res_handle = res->cfgte.res_handle;
3811 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
3812 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
3813 if (ipr_is_gata(res)) {
3814 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET;
3815 ioarcb->add_cmd_parms_len = cpu_to_be32(sizeof(regs->flags));
3816 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
3819 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
3820 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
3821 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
3822 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET)
3823 memcpy(&res->sata_port->ioasa, &ipr_cmd->ioasa.u.gata,
3824 sizeof(struct ipr_ioasa_gata));
3827 return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0);
3831 * ipr_sata_reset - Reset the SATA port
3832 * @ap: SATA port to reset
3833 * @classes: class of the attached device
3835 * This function issues a SATA phy reset to the affected ATA port.
3838 * 0 on success / non-zero on failure
3840 static int ipr_sata_reset(struct ata_port *ap, unsigned int *classes,
3841 unsigned long deadline)
3843 struct ipr_sata_port *sata_port = ap->private_data;
3844 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
3845 struct ipr_resource_entry *res;
3846 unsigned long lock_flags = 0;
3850 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3851 while(ioa_cfg->in_reset_reload) {
3852 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3853 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3854 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3857 res = sata_port->res;
3859 rc = ipr_device_reset(ioa_cfg, res);
3860 switch(res->cfgte.proto) {
3861 case IPR_PROTO_SATA:
3862 case IPR_PROTO_SAS_STP:
3863 *classes = ATA_DEV_ATA;
3865 case IPR_PROTO_SATA_ATAPI:
3866 case IPR_PROTO_SAS_STP_ATAPI:
3867 *classes = ATA_DEV_ATAPI;
3870 *classes = ATA_DEV_UNKNOWN;
3875 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3881 * ipr_eh_dev_reset - Reset the device
3882 * @scsi_cmd: scsi command struct
3884 * This function issues a device reset to the affected device.
3885 * A LUN reset will be sent to the device first. If that does
3886 * not work, a target reset will be sent.
3891 static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd)
3893 struct ipr_cmnd *ipr_cmd;
3894 struct ipr_ioa_cfg *ioa_cfg;
3895 struct ipr_resource_entry *res;
3896 struct ata_port *ap;
3900 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
3901 res = scsi_cmd->device->hostdata;
3907 * If we are currently going through reset/reload, return failed. This will force the
3908 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
3911 if (ioa_cfg->in_reset_reload)
3913 if (ioa_cfg->ioa_is_dead)
3916 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
3917 if (ipr_cmd->ioarcb.res_handle == res->cfgte.res_handle) {
3918 if (ipr_cmd->scsi_cmd)
3919 ipr_cmd->done = ipr_scsi_eh_done;
3921 ipr_cmd->done = ipr_sata_eh_done;
3922 if (ipr_cmd->qc && !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) {
3923 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
3924 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED;
3929 res->resetting_device = 1;
3930 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n");
3932 if (ipr_is_gata(res) && res->sata_port) {
3933 ap = res->sata_port->ap;
3934 spin_unlock_irq(scsi_cmd->device->host->host_lock);
3935 ata_do_eh(ap, NULL, NULL, ipr_sata_reset, NULL);
3936 spin_lock_irq(scsi_cmd->device->host->host_lock);
3938 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
3939 if (ipr_cmd->ioarcb.res_handle == res->cfgte.res_handle) {
3945 rc = ipr_device_reset(ioa_cfg, res);
3946 res->resetting_device = 0;
3949 return (rc ? FAILED : SUCCESS);
3952 static int ipr_eh_dev_reset(struct scsi_cmnd * cmd)
3956 spin_lock_irq(cmd->device->host->host_lock);
3957 rc = __ipr_eh_dev_reset(cmd);
3958 spin_unlock_irq(cmd->device->host->host_lock);
3964 * ipr_bus_reset_done - Op done function for bus reset.
3965 * @ipr_cmd: ipr command struct
3967 * This function is the op done function for a bus reset
3972 static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
3974 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
3975 struct ipr_resource_entry *res;
3978 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3979 if (!memcmp(&res->cfgte.res_handle, &ipr_cmd->ioarcb.res_handle,
3980 sizeof(res->cfgte.res_handle))) {
3981 scsi_report_bus_reset(ioa_cfg->host, res->cfgte.res_addr.bus);
3987 * If abort has not completed, indicate the reset has, else call the
3988 * abort's done function to wake the sleeping eh thread
3990 if (ipr_cmd->sibling->sibling)
3991 ipr_cmd->sibling->sibling = NULL;
3993 ipr_cmd->sibling->done(ipr_cmd->sibling);
3995 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4000 * ipr_abort_timeout - An abort task has timed out
4001 * @ipr_cmd: ipr command struct
4003 * This function handles when an abort task times out. If this
4004 * happens we issue a bus reset since we have resources tied
4005 * up that must be freed before returning to the midlayer.
4010 static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
4012 struct ipr_cmnd *reset_cmd;
4013 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4014 struct ipr_cmd_pkt *cmd_pkt;
4015 unsigned long lock_flags = 0;
4018 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4019 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) {
4020 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4024 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n");
4025 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4026 ipr_cmd->sibling = reset_cmd;
4027 reset_cmd->sibling = ipr_cmd;
4028 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle;
4029 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt;
4030 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4031 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
4032 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET;
4034 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
4035 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4040 * ipr_cancel_op - Cancel specified op
4041 * @scsi_cmd: scsi command struct
4043 * This function cancels specified op.
4048 static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd)
4050 struct ipr_cmnd *ipr_cmd;
4051 struct ipr_ioa_cfg *ioa_cfg;
4052 struct ipr_resource_entry *res;
4053 struct ipr_cmd_pkt *cmd_pkt;
4058 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
4059 res = scsi_cmd->device->hostdata;
4061 /* If we are currently going through reset/reload, return failed.
4062 * This will force the mid-layer to call ipr_eh_host_reset,
4063 * which will then go to sleep and wait for the reset to complete
4065 if (ioa_cfg->in_reset_reload || ioa_cfg->ioa_is_dead)
4067 if (!res || !ipr_is_gscsi(res))
4070 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
4071 if (ipr_cmd->scsi_cmd == scsi_cmd) {
4072 ipr_cmd->done = ipr_scsi_eh_done;
4081 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4082 ipr_cmd->ioarcb.res_handle = res->cfgte.res_handle;
4083 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
4084 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4085 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
4086 ipr_cmd->u.sdev = scsi_cmd->device;
4088 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n",
4090 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
4091 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4094 * If the abort task timed out and we sent a bus reset, we will get
4095 * one the following responses to the abort
4097 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) {
4102 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4103 if (!ipr_is_naca_model(res))
4104 res->needs_sync_complete = 1;
4107 return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS);
4111 * ipr_eh_abort - Abort a single op
4112 * @scsi_cmd: scsi command struct
4117 static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd)
4119 unsigned long flags;
4124 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags);
4125 rc = ipr_cancel_op(scsi_cmd);
4126 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags);
4133 * ipr_handle_other_interrupt - Handle "other" interrupts
4134 * @ioa_cfg: ioa config struct
4135 * @int_reg: interrupt register
4138 * IRQ_NONE / IRQ_HANDLED
4140 static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg,
4141 volatile u32 int_reg)
4143 irqreturn_t rc = IRQ_HANDLED;
4145 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
4146 /* Mask the interrupt */
4147 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg);
4149 /* Clear the interrupt */
4150 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg);
4151 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
4153 list_del(&ioa_cfg->reset_cmd->queue);
4154 del_timer(&ioa_cfg->reset_cmd->timer);
4155 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
4157 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED)
4158 ioa_cfg->ioa_unit_checked = 1;
4160 dev_err(&ioa_cfg->pdev->dev,
4161 "Permanent IOA failure. 0x%08X\n", int_reg);
4163 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4164 ioa_cfg->sdt_state = GET_DUMP;
4166 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
4167 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
4174 * ipr_isr - Interrupt service routine
4176 * @devp: pointer to ioa config struct
4179 * IRQ_NONE / IRQ_HANDLED
4181 static irqreturn_t ipr_isr(int irq, void *devp)
4183 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
4184 unsigned long lock_flags = 0;
4185 volatile u32 int_reg, int_mask_reg;
4188 struct ipr_cmnd *ipr_cmd;
4189 irqreturn_t rc = IRQ_NONE;
4191 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4193 /* If interrupts are disabled, ignore the interrupt */
4194 if (!ioa_cfg->allow_interrupts) {
4195 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4199 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
4200 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
4202 /* If an interrupt on the adapter did not occur, ignore it */
4203 if (unlikely((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0)) {
4204 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4211 while ((be32_to_cpu(*ioa_cfg->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
4212 ioa_cfg->toggle_bit) {
4214 cmd_index = (be32_to_cpu(*ioa_cfg->hrrq_curr) &
4215 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT;
4217 if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) {
4218 ioa_cfg->errors_logged++;
4219 dev_err(&ioa_cfg->pdev->dev, "Invalid response handle from IOA\n");
4221 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4222 ioa_cfg->sdt_state = GET_DUMP;
4224 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
4225 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4229 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
4231 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4233 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
4235 list_del(&ipr_cmd->queue);
4236 del_timer(&ipr_cmd->timer);
4237 ipr_cmd->done(ipr_cmd);
4241 if (ioa_cfg->hrrq_curr < ioa_cfg->hrrq_end) {
4242 ioa_cfg->hrrq_curr++;
4244 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
4245 ioa_cfg->toggle_bit ^= 1u;
4249 if (ipr_cmd != NULL) {
4250 /* Clear the PCI interrupt */
4251 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg);
4252 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
4257 if (unlikely(rc == IRQ_NONE))
4258 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg);
4260 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4265 * ipr_build_ioadl - Build a scatter/gather list and map the buffer
4266 * @ioa_cfg: ioa config struct
4267 * @ipr_cmd: ipr command struct
4270 * 0 on success / -1 on failure
4272 static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg,
4273 struct ipr_cmnd *ipr_cmd)
4276 struct scatterlist *sg;
4278 u32 ioadl_flags = 0;
4279 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4280 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
4281 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
4283 length = scsi_bufflen(scsi_cmd);
4287 nseg = scsi_dma_map(scsi_cmd);
4289 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
4293 ipr_cmd->dma_use_sg = nseg;
4295 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
4296 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
4297 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
4298 ioarcb->write_data_transfer_length = cpu_to_be32(length);
4299 ioarcb->write_ioadl_len =
4300 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
4301 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
4302 ioadl_flags = IPR_IOADL_FLAGS_READ;
4303 ioarcb->read_data_transfer_length = cpu_to_be32(length);
4304 ioarcb->read_ioadl_len =
4305 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
4308 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->add_data.u.ioadl)) {
4309 ioadl = ioarcb->add_data.u.ioadl;
4310 ioarcb->write_ioadl_addr =
4311 cpu_to_be32(be32_to_cpu(ioarcb->ioarcb_host_pci_addr) +
4312 offsetof(struct ipr_ioarcb, add_data));
4313 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
4316 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
4317 ioadl[i].flags_and_data_len =
4318 cpu_to_be32(ioadl_flags | sg_dma_len(sg));
4319 ioadl[i].address = cpu_to_be32(sg_dma_address(sg));
4322 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
4327 * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes
4328 * @scsi_cmd: scsi command struct
4333 static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd)
4336 u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK;
4338 if (scsi_populate_tag_msg(scsi_cmd, tag)) {
4340 case MSG_SIMPLE_TAG:
4341 rc = IPR_FLAGS_LO_SIMPLE_TASK;
4344 rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK;
4346 case MSG_ORDERED_TAG:
4347 rc = IPR_FLAGS_LO_ORDERED_TASK;
4356 * ipr_erp_done - Process completion of ERP for a device
4357 * @ipr_cmd: ipr command struct
4359 * This function copies the sense buffer into the scsi_cmd
4360 * struct and pushes the scsi_done function.
4365 static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
4367 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4368 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
4369 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4370 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4372 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
4373 scsi_cmd->result |= (DID_ERROR << 16);
4374 scmd_printk(KERN_ERR, scsi_cmd,
4375 "Request Sense failed with IOASC: 0x%08X\n", ioasc);
4377 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer,
4378 SCSI_SENSE_BUFFERSIZE);
4382 if (!ipr_is_naca_model(res))
4383 res->needs_sync_complete = 1;
4386 scsi_dma_unmap(ipr_cmd->scsi_cmd);
4387 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4388 scsi_cmd->scsi_done(scsi_cmd);
4392 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP
4393 * @ipr_cmd: ipr command struct
4398 static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
4400 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
4401 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
4402 dma_addr_t dma_addr = be32_to_cpu(ioarcb->ioarcb_host_pci_addr);
4404 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
4405 ioarcb->write_data_transfer_length = 0;
4406 ioarcb->read_data_transfer_length = 0;
4407 ioarcb->write_ioadl_len = 0;
4408 ioarcb->read_ioadl_len = 0;
4410 ioasa->residual_data_len = 0;
4411 ioarcb->write_ioadl_addr =
4412 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioadl));
4413 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
4417 * ipr_erp_request_sense - Send request sense to a device
4418 * @ipr_cmd: ipr command struct
4420 * This function sends a request sense to a device as a result
4421 * of a check condition.
4426 static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
4428 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
4429 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4431 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
4432 ipr_erp_done(ipr_cmd);
4436 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
4438 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB;
4439 cmd_pkt->cdb[0] = REQUEST_SENSE;
4440 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE;
4441 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE;
4442 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
4443 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ);
4445 ipr_cmd->ioadl[0].flags_and_data_len =
4446 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | SCSI_SENSE_BUFFERSIZE);
4447 ipr_cmd->ioadl[0].address =
4448 cpu_to_be32(ipr_cmd->sense_buffer_dma);
4450 ipr_cmd->ioarcb.read_ioadl_len =
4451 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
4452 ipr_cmd->ioarcb.read_data_transfer_length =
4453 cpu_to_be32(SCSI_SENSE_BUFFERSIZE);
4455 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout,
4456 IPR_REQUEST_SENSE_TIMEOUT * 2);
4460 * ipr_erp_cancel_all - Send cancel all to a device
4461 * @ipr_cmd: ipr command struct
4463 * This function sends a cancel all to a device to clear the
4464 * queue. If we are running TCQ on the device, QERR is set to 1,
4465 * which means all outstanding ops have been dropped on the floor.
4466 * Cancel all will return them to us.
4471 static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
4473 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4474 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
4475 struct ipr_cmd_pkt *cmd_pkt;
4479 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
4481 if (!scsi_get_tag_type(scsi_cmd->device)) {
4482 ipr_erp_request_sense(ipr_cmd);
4486 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
4487 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4488 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
4490 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout,
4491 IPR_CANCEL_ALL_TIMEOUT);
4495 * ipr_dump_ioasa - Dump contents of IOASA
4496 * @ioa_cfg: ioa config struct
4497 * @ipr_cmd: ipr command struct
4498 * @res: resource entry struct
4500 * This function is invoked by the interrupt handler when ops
4501 * fail. It will log the IOASA if appropriate. Only called
4507 static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
4508 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res)
4512 u32 ioasc, fd_ioasc;
4513 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
4514 __be32 *ioasa_data = (__be32 *)ioasa;
4517 ioasc = be32_to_cpu(ioasa->ioasc) & IPR_IOASC_IOASC_MASK;
4518 fd_ioasc = be32_to_cpu(ioasa->fd_ioasc) & IPR_IOASC_IOASC_MASK;
4523 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
4526 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc)
4527 error_index = ipr_get_error(fd_ioasc);
4529 error_index = ipr_get_error(ioasc);
4531 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) {
4532 /* Don't log an error if the IOA already logged one */
4533 if (ioasa->ilid != 0)
4536 if (!ipr_is_gscsi(res))
4539 if (ipr_error_table[error_index].log_ioasa == 0)
4543 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error);
4545 if (sizeof(struct ipr_ioasa) < be16_to_cpu(ioasa->ret_stat_len))
4546 data_len = sizeof(struct ipr_ioasa);
4548 data_len = be16_to_cpu(ioasa->ret_stat_len);
4550 ipr_err("IOASA Dump:\n");
4552 for (i = 0; i < data_len / 4; i += 4) {
4553 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
4554 be32_to_cpu(ioasa_data[i]),
4555 be32_to_cpu(ioasa_data[i+1]),
4556 be32_to_cpu(ioasa_data[i+2]),
4557 be32_to_cpu(ioasa_data[i+3]));
4562 * ipr_gen_sense - Generate SCSI sense data from an IOASA
4564 * @sense_buf: sense data buffer
4569 static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
4572 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer;
4573 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata;
4574 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
4575 u32 ioasc = be32_to_cpu(ioasa->ioasc);
4577 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
4579 if (ioasc >= IPR_FIRST_DRIVER_IOASC)
4582 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION;
4584 if (ipr_is_vset_device(res) &&
4585 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC &&
4586 ioasa->u.vset.failing_lba_hi != 0) {
4587 sense_buf[0] = 0x72;
4588 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc);
4589 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc);
4590 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc);
4594 sense_buf[9] = 0x0A;
4595 sense_buf[10] = 0x80;
4597 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi);
4599 sense_buf[12] = (failing_lba & 0xff000000) >> 24;
4600 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16;
4601 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8;
4602 sense_buf[15] = failing_lba & 0x000000ff;
4604 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
4606 sense_buf[16] = (failing_lba & 0xff000000) >> 24;
4607 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16;
4608 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8;
4609 sense_buf[19] = failing_lba & 0x000000ff;
4611 sense_buf[0] = 0x70;
4612 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc);
4613 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc);
4614 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc);
4616 /* Illegal request */
4617 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) &&
4618 (be32_to_cpu(ioasa->ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
4619 sense_buf[7] = 10; /* additional length */
4621 /* IOARCB was in error */
4622 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24)
4623 sense_buf[15] = 0xC0;
4624 else /* Parameter data was invalid */
4625 sense_buf[15] = 0x80;
4628 ((IPR_FIELD_POINTER_MASK &
4629 be32_to_cpu(ioasa->ioasc_specific)) >> 8) & 0xff;
4631 (IPR_FIELD_POINTER_MASK &
4632 be32_to_cpu(ioasa->ioasc_specific)) & 0xff;
4634 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) {
4635 if (ipr_is_vset_device(res))
4636 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
4638 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba);
4640 sense_buf[0] |= 0x80; /* Or in the Valid bit */
4641 sense_buf[3] = (failing_lba & 0xff000000) >> 24;
4642 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16;
4643 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8;
4644 sense_buf[6] = failing_lba & 0x000000ff;
4647 sense_buf[7] = 6; /* additional length */
4653 * ipr_get_autosense - Copy autosense data to sense buffer
4654 * @ipr_cmd: ipr command struct
4656 * This function copies the autosense buffer to the buffer
4657 * in the scsi_cmd, if there is autosense available.
4660 * 1 if autosense was available / 0 if not
4662 static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
4664 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
4666 if ((be32_to_cpu(ioasa->ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
4669 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
4670 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
4671 SCSI_SENSE_BUFFERSIZE));
4676 * ipr_erp_start - Process an error response for a SCSI op
4677 * @ioa_cfg: ioa config struct
4678 * @ipr_cmd: ipr command struct
4680 * This function determines whether or not to initiate ERP
4681 * on the affected device.
4686 static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
4687 struct ipr_cmnd *ipr_cmd)
4689 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4690 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
4691 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4692 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK;
4695 ipr_scsi_eh_done(ipr_cmd);
4699 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS)
4700 ipr_gen_sense(ipr_cmd);
4702 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
4704 switch (masked_ioasc) {
4705 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
4706 if (ipr_is_naca_model(res))
4707 scsi_cmd->result |= (DID_ABORT << 16);
4709 scsi_cmd->result |= (DID_IMM_RETRY << 16);
4711 case IPR_IOASC_IR_RESOURCE_HANDLE:
4712 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
4713 scsi_cmd->result |= (DID_NO_CONNECT << 16);
4715 case IPR_IOASC_HW_SEL_TIMEOUT:
4716 scsi_cmd->result |= (DID_NO_CONNECT << 16);
4717 if (!ipr_is_naca_model(res))
4718 res->needs_sync_complete = 1;
4720 case IPR_IOASC_SYNC_REQUIRED:
4722 res->needs_sync_complete = 1;
4723 scsi_cmd->result |= (DID_IMM_RETRY << 16);
4725 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
4726 case IPR_IOASA_IR_DUAL_IOA_DISABLED:
4727 scsi_cmd->result |= (DID_PASSTHROUGH << 16);
4729 case IPR_IOASC_BUS_WAS_RESET:
4730 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER:
4732 * Report the bus reset and ask for a retry. The device
4733 * will give CC/UA the next command.
4735 if (!res->resetting_device)
4736 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
4737 scsi_cmd->result |= (DID_ERROR << 16);
4738 if (!ipr_is_naca_model(res))
4739 res->needs_sync_complete = 1;
4741 case IPR_IOASC_HW_DEV_BUS_STATUS:
4742 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
4743 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
4744 if (!ipr_get_autosense(ipr_cmd)) {
4745 if (!ipr_is_naca_model(res)) {
4746 ipr_erp_cancel_all(ipr_cmd);
4751 if (!ipr_is_naca_model(res))
4752 res->needs_sync_complete = 1;
4754 case IPR_IOASC_NR_INIT_CMD_REQUIRED:
4757 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
4758 scsi_cmd->result |= (DID_ERROR << 16);
4759 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
4760 res->needs_sync_complete = 1;
4764 scsi_dma_unmap(ipr_cmd->scsi_cmd);
4765 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4766 scsi_cmd->scsi_done(scsi_cmd);
4770 * ipr_scsi_done - mid-layer done function
4771 * @ipr_cmd: ipr command struct
4773 * This function is invoked by the interrupt handler for
4774 * ops generated by the SCSI mid-layer
4779 static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
4781 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4782 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4783 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4785 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->ioasa.residual_data_len));
4787 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
4788 scsi_dma_unmap(ipr_cmd->scsi_cmd);
4789 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4790 scsi_cmd->scsi_done(scsi_cmd);
4792 ipr_erp_start(ioa_cfg, ipr_cmd);
4796 * ipr_queuecommand - Queue a mid-layer request
4797 * @scsi_cmd: scsi command struct
4798 * @done: done function
4800 * This function queues a request generated by the mid-layer.
4804 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy
4805 * SCSI_MLQUEUE_HOST_BUSY if host is busy
4807 static int ipr_queuecommand(struct scsi_cmnd *scsi_cmd,
4808 void (*done) (struct scsi_cmnd *))
4810 struct ipr_ioa_cfg *ioa_cfg;
4811 struct ipr_resource_entry *res;
4812 struct ipr_ioarcb *ioarcb;
4813 struct ipr_cmnd *ipr_cmd;
4816 scsi_cmd->scsi_done = done;
4817 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
4818 res = scsi_cmd->device->hostdata;
4819 scsi_cmd->result = (DID_OK << 16);
4822 * We are currently blocking all devices due to a host reset
4823 * We have told the host to stop giving us new requests, but
4824 * ERP ops don't count. FIXME
4826 if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead))
4827 return SCSI_MLQUEUE_HOST_BUSY;
4830 * FIXME - Create scsi_set_host_offline interface
4831 * and the ioa_is_dead check can be removed
4833 if (unlikely(ioa_cfg->ioa_is_dead || !res)) {
4834 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
4835 scsi_cmd->result = (DID_NO_CONNECT << 16);
4836 scsi_cmd->scsi_done(scsi_cmd);
4840 if (ipr_is_gata(res) && res->sata_port)
4841 return ata_sas_queuecmd(scsi_cmd, done, res->sata_port->ap);
4843 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4844 ioarcb = &ipr_cmd->ioarcb;
4845 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
4847 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len);
4848 ipr_cmd->scsi_cmd = scsi_cmd;
4849 ioarcb->res_handle = res->cfgte.res_handle;
4850 ipr_cmd->done = ipr_scsi_done;
4851 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_PHYS_LOC(res->cfgte.res_addr));
4853 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
4854 if (scsi_cmd->underflow == 0)
4855 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
4857 if (res->needs_sync_complete) {
4858 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
4859 res->needs_sync_complete = 0;
4862 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
4863 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
4864 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
4865 ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd);
4868 if (scsi_cmd->cmnd[0] >= 0xC0 &&
4869 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE))
4870 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
4872 if (likely(rc == 0))
4873 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
4875 if (likely(rc == 0)) {
4877 writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr),
4878 ioa_cfg->regs.ioarrin_reg);
4880 list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4881 return SCSI_MLQUEUE_HOST_BUSY;
4888 * ipr_ioctl - IOCTL handler
4889 * @sdev: scsi device struct
4894 * 0 on success / other on failure
4896 static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
4898 struct ipr_resource_entry *res;
4900 res = (struct ipr_resource_entry *)sdev->hostdata;
4901 if (res && ipr_is_gata(res))
4902 return ata_scsi_ioctl(sdev, cmd, arg);
4908 * ipr_info - Get information about the card/driver
4909 * @scsi_host: scsi host struct
4912 * pointer to buffer with description string
4914 static const char * ipr_ioa_info(struct Scsi_Host *host)
4916 static char buffer[512];
4917 struct ipr_ioa_cfg *ioa_cfg;
4918 unsigned long lock_flags = 0;
4920 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata;
4922 spin_lock_irqsave(host->host_lock, lock_flags);
4923 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type);
4924 spin_unlock_irqrestore(host->host_lock, lock_flags);
4929 static struct scsi_host_template driver_template = {
4930 .module = THIS_MODULE,
4932 .info = ipr_ioa_info,
4934 .queuecommand = ipr_queuecommand,
4935 .eh_abort_handler = ipr_eh_abort,
4936 .eh_device_reset_handler = ipr_eh_dev_reset,
4937 .eh_host_reset_handler = ipr_eh_host_reset,
4938 .slave_alloc = ipr_slave_alloc,
4939 .slave_configure = ipr_slave_configure,
4940 .slave_destroy = ipr_slave_destroy,
4941 .target_alloc = ipr_target_alloc,
4942 .target_destroy = ipr_target_destroy,
4943 .change_queue_depth = ipr_change_queue_depth,
4944 .change_queue_type = ipr_change_queue_type,
4945 .bios_param = ipr_biosparam,
4946 .can_queue = IPR_MAX_COMMANDS,
4948 .sg_tablesize = IPR_MAX_SGLIST,
4949 .max_sectors = IPR_IOA_MAX_SECTORS,
4950 .cmd_per_lun = IPR_MAX_CMD_PER_LUN,
4951 .use_clustering = ENABLE_CLUSTERING,
4952 .shost_attrs = ipr_ioa_attrs,
4953 .sdev_attrs = ipr_dev_attrs,
4954 .proc_name = IPR_NAME
4958 * ipr_ata_phy_reset - libata phy_reset handler
4959 * @ap: ata port to reset
4962 static void ipr_ata_phy_reset(struct ata_port *ap)
4964 unsigned long flags;
4965 struct ipr_sata_port *sata_port = ap->private_data;
4966 struct ipr_resource_entry *res = sata_port->res;
4967 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
4971 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
4972 while(ioa_cfg->in_reset_reload) {
4973 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
4974 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4975 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
4978 if (!ioa_cfg->allow_cmds)
4981 rc = ipr_device_reset(ioa_cfg, res);
4984 ap->ops->port_disable(ap);
4988 switch(res->cfgte.proto) {
4989 case IPR_PROTO_SATA:
4990 case IPR_PROTO_SAS_STP:
4991 ap->device[0].class = ATA_DEV_ATA;
4993 case IPR_PROTO_SATA_ATAPI:
4994 case IPR_PROTO_SAS_STP_ATAPI:
4995 ap->device[0].class = ATA_DEV_ATAPI;
4998 ap->device[0].class = ATA_DEV_UNKNOWN;
4999 ap->ops->port_disable(ap);
5004 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5009 * ipr_ata_post_internal - Cleanup after an internal command
5010 * @qc: ATA queued command
5015 static void ipr_ata_post_internal(struct ata_queued_cmd *qc)
5017 struct ipr_sata_port *sata_port = qc->ap->private_data;
5018 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5019 struct ipr_cmnd *ipr_cmd;
5020 unsigned long flags;
5022 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5023 while(ioa_cfg->in_reset_reload) {
5024 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5025 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5026 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5029 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
5030 if (ipr_cmd->qc == qc) {
5031 ipr_device_reset(ioa_cfg, sata_port->res);
5035 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5039 * ipr_tf_read - Read the current ATA taskfile for the ATA port
5041 * @tf: destination ATA taskfile
5046 static void ipr_tf_read(struct ata_port *ap, struct ata_taskfile *tf)
5048 struct ipr_sata_port *sata_port = ap->private_data;
5049 struct ipr_ioasa_gata *g = &sata_port->ioasa;
5051 tf->feature = g->error;
5052 tf->nsect = g->nsect;
5056 tf->device = g->device;
5057 tf->command = g->status;
5058 tf->hob_nsect = g->hob_nsect;
5059 tf->hob_lbal = g->hob_lbal;
5060 tf->hob_lbam = g->hob_lbam;
5061 tf->hob_lbah = g->hob_lbah;
5062 tf->ctl = g->alt_status;
5066 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure
5067 * @regs: destination
5068 * @tf: source ATA taskfile
5073 static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs,
5074 struct ata_taskfile *tf)
5076 regs->feature = tf->feature;
5077 regs->nsect = tf->nsect;
5078 regs->lbal = tf->lbal;
5079 regs->lbam = tf->lbam;
5080 regs->lbah = tf->lbah;
5081 regs->device = tf->device;
5082 regs->command = tf->command;
5083 regs->hob_feature = tf->hob_feature;
5084 regs->hob_nsect = tf->hob_nsect;
5085 regs->hob_lbal = tf->hob_lbal;
5086 regs->hob_lbam = tf->hob_lbam;
5087 regs->hob_lbah = tf->hob_lbah;
5088 regs->ctl = tf->ctl;
5092 * ipr_sata_done - done function for SATA commands
5093 * @ipr_cmd: ipr command struct
5095 * This function is invoked by the interrupt handler for
5096 * ops generated by the SCSI mid-layer to SATA devices
5101 static void ipr_sata_done(struct ipr_cmnd *ipr_cmd)
5103 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5104 struct ata_queued_cmd *qc = ipr_cmd->qc;
5105 struct ipr_sata_port *sata_port = qc->ap->private_data;
5106 struct ipr_resource_entry *res = sata_port->res;
5107 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
5109 memcpy(&sata_port->ioasa, &ipr_cmd->ioasa.u.gata,
5110 sizeof(struct ipr_ioasa_gata));
5111 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
5113 if (be32_to_cpu(ipr_cmd->ioasa.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
5114 scsi_report_device_reset(ioa_cfg->host, res->cfgte.res_addr.bus,
5115 res->cfgte.res_addr.target);
5117 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
5118 qc->err_mask |= __ac_err_mask(ipr_cmd->ioasa.u.gata.status);
5120 qc->err_mask |= ac_err_mask(ipr_cmd->ioasa.u.gata.status);
5121 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5122 ata_qc_complete(qc);
5126 * ipr_build_ata_ioadl - Build an ATA scatter/gather list
5127 * @ipr_cmd: ipr command struct
5128 * @qc: ATA queued command
5131 static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
5132 struct ata_queued_cmd *qc)
5134 u32 ioadl_flags = 0;
5135 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5136 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
5137 int len = qc->nbytes + qc->pad_len;
5138 struct scatterlist *sg;
5143 if (qc->dma_dir == DMA_TO_DEVICE) {
5144 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5145 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5146 ioarcb->write_data_transfer_length = cpu_to_be32(len);
5147 ioarcb->write_ioadl_len =
5148 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5149 } else if (qc->dma_dir == DMA_FROM_DEVICE) {
5150 ioadl_flags = IPR_IOADL_FLAGS_READ;
5151 ioarcb->read_data_transfer_length = cpu_to_be32(len);
5152 ioarcb->read_ioadl_len =
5153 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5156 ata_for_each_sg(sg, qc) {
5157 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
5158 ioadl->address = cpu_to_be32(sg_dma_address(sg));
5159 if (ata_sg_is_last(sg, qc))
5160 ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5167 * ipr_qc_issue - Issue a SATA qc to a device
5168 * @qc: queued command
5173 static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc)
5175 struct ata_port *ap = qc->ap;
5176 struct ipr_sata_port *sata_port = ap->private_data;
5177 struct ipr_resource_entry *res = sata_port->res;
5178 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5179 struct ipr_cmnd *ipr_cmd;
5180 struct ipr_ioarcb *ioarcb;
5181 struct ipr_ioarcb_ata_regs *regs;
5183 if (unlikely(!ioa_cfg->allow_cmds || ioa_cfg->ioa_is_dead))
5184 return AC_ERR_SYSTEM;
5186 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5187 ioarcb = &ipr_cmd->ioarcb;
5188 regs = &ioarcb->add_data.u.regs;
5190 memset(&ioarcb->add_data, 0, sizeof(ioarcb->add_data));
5191 ioarcb->add_cmd_parms_len = cpu_to_be32(sizeof(ioarcb->add_data.u.regs));
5193 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
5195 ipr_cmd->done = ipr_sata_done;
5196 ipr_cmd->ioarcb.res_handle = res->cfgte.res_handle;
5197 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU;
5198 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
5199 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5200 ipr_cmd->dma_use_sg = qc->pad_len ? qc->n_elem + 1 : qc->n_elem;
5202 ipr_build_ata_ioadl(ipr_cmd, qc);
5203 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
5204 ipr_copy_sata_tf(regs, &qc->tf);
5205 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN);
5206 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_PHYS_LOC(res->cfgte.res_addr));
5208 switch (qc->tf.protocol) {
5209 case ATA_PROT_NODATA:
5214 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
5217 case ATA_PROT_ATAPI:
5218 case ATA_PROT_ATAPI_NODATA:
5219 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
5222 case ATA_PROT_ATAPI_DMA:
5223 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
5224 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
5229 return AC_ERR_INVALID;
5233 writel(be32_to_cpu(ioarcb->ioarcb_host_pci_addr),
5234 ioa_cfg->regs.ioarrin_reg);
5239 * ipr_ata_check_status - Return last ATA status
5245 static u8 ipr_ata_check_status(struct ata_port *ap)
5247 struct ipr_sata_port *sata_port = ap->private_data;
5248 return sata_port->ioasa.status;
5252 * ipr_ata_check_altstatus - Return last ATA altstatus
5258 static u8 ipr_ata_check_altstatus(struct ata_port *ap)
5260 struct ipr_sata_port *sata_port = ap->private_data;
5261 return sata_port->ioasa.alt_status;
5264 static struct ata_port_operations ipr_sata_ops = {
5265 .port_disable = ata_port_disable,
5266 .check_status = ipr_ata_check_status,
5267 .check_altstatus = ipr_ata_check_altstatus,
5268 .dev_select = ata_noop_dev_select,
5269 .phy_reset = ipr_ata_phy_reset,
5270 .post_internal_cmd = ipr_ata_post_internal,
5271 .tf_read = ipr_tf_read,
5272 .qc_prep = ata_noop_qc_prep,
5273 .qc_issue = ipr_qc_issue,
5274 .port_start = ata_sas_port_start,
5275 .port_stop = ata_sas_port_stop
5278 static struct ata_port_info sata_port_info = {
5279 .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | ATA_FLAG_SATA_RESET |
5280 ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA,
5281 .pio_mask = 0x10, /* pio4 */
5283 .udma_mask = 0x7f, /* udma0-6 */
5284 .port_ops = &ipr_sata_ops
5287 #ifdef CONFIG_PPC_PSERIES
5288 static const u16 ipr_blocked_processors[] = {
5300 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware
5301 * @ioa_cfg: ioa cfg struct
5303 * Adapters that use Gemstone revision < 3.1 do not work reliably on
5304 * certain pSeries hardware. This function determines if the given
5305 * adapter is in one of these confgurations or not.
5308 * 1 if adapter is not supported / 0 if adapter is supported
5310 static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
5314 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) {
5315 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){
5316 if (__is_processor(ipr_blocked_processors[i]))
5323 #define ipr_invalid_adapter(ioa_cfg) 0
5327 * ipr_ioa_bringdown_done - IOA bring down completion.
5328 * @ipr_cmd: ipr command struct
5330 * This function processes the completion of an adapter bring down.
5331 * It wakes any reset sleepers.
5336 static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd)
5338 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5341 ioa_cfg->in_reset_reload = 0;
5342 ioa_cfg->reset_retries = 0;
5343 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5344 wake_up_all(&ioa_cfg->reset_wait_q);
5346 spin_unlock_irq(ioa_cfg->host->host_lock);
5347 scsi_unblock_requests(ioa_cfg->host);
5348 spin_lock_irq(ioa_cfg->host->host_lock);
5351 return IPR_RC_JOB_RETURN;
5355 * ipr_ioa_reset_done - IOA reset completion.
5356 * @ipr_cmd: ipr command struct
5358 * This function processes the completion of an adapter reset.
5359 * It schedules any necessary mid-layer add/removes and
5360 * wakes any reset sleepers.
5365 static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
5367 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5368 struct ipr_resource_entry *res;
5369 struct ipr_hostrcb *hostrcb, *temp;
5373 ioa_cfg->in_reset_reload = 0;
5374 ioa_cfg->allow_cmds = 1;
5375 ioa_cfg->reset_cmd = NULL;
5376 ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
5378 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
5379 if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) {
5384 schedule_work(&ioa_cfg->work_q);
5386 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) {
5387 list_del(&hostrcb->queue);
5388 if (i++ < IPR_NUM_LOG_HCAMS)
5389 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
5391 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
5394 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS);
5395 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n");
5397 ioa_cfg->reset_retries = 0;
5398 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5399 wake_up_all(&ioa_cfg->reset_wait_q);
5401 spin_unlock_irq(ioa_cfg->host->host_lock);
5402 scsi_unblock_requests(ioa_cfg->host);
5403 spin_lock_irq(ioa_cfg->host->host_lock);
5405 if (!ioa_cfg->allow_cmds)
5406 scsi_block_requests(ioa_cfg->host);
5409 return IPR_RC_JOB_RETURN;
5413 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer
5414 * @supported_dev: supported device struct
5415 * @vpids: vendor product id struct
5420 static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev,
5421 struct ipr_std_inq_vpids *vpids)
5423 memset(supported_dev, 0, sizeof(struct ipr_supported_device));
5424 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids));
5425 supported_dev->num_records = 1;
5426 supported_dev->data_length =
5427 cpu_to_be16(sizeof(struct ipr_supported_device));
5428 supported_dev->reserved = 0;
5432 * ipr_set_supported_devs - Send Set Supported Devices for a device
5433 * @ipr_cmd: ipr command struct
5435 * This function send a Set Supported Devices to the adapter
5438 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
5440 static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
5442 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5443 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev;
5444 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
5445 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5446 struct ipr_resource_entry *res = ipr_cmd->u.res;
5448 ipr_cmd->job_step = ipr_ioa_reset_done;
5450 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
5451 if (!ipr_is_scsi_disk(res))
5454 ipr_cmd->u.res = res;
5455 ipr_set_sup_dev_dflt(supp_dev, &res->cfgte.std_inq_data.vpids);
5457 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
5458 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5459 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
5461 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES;
5462 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff;
5463 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff;
5465 ioadl->flags_and_data_len = cpu_to_be32(IPR_IOADL_FLAGS_WRITE_LAST |
5466 sizeof(struct ipr_supported_device));
5467 ioadl->address = cpu_to_be32(ioa_cfg->vpd_cbs_dma +
5468 offsetof(struct ipr_misc_cbs, supp_dev));
5469 ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
5470 ioarcb->write_data_transfer_length =
5471 cpu_to_be32(sizeof(struct ipr_supported_device));
5473 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
5474 IPR_SET_SUP_DEVICE_TIMEOUT);
5476 ipr_cmd->job_step = ipr_set_supported_devs;
5477 return IPR_RC_JOB_RETURN;
5480 return IPR_RC_JOB_CONTINUE;
5484 * ipr_setup_write_cache - Disable write cache if needed
5485 * @ipr_cmd: ipr command struct
5487 * This function sets up adapters write cache to desired setting
5490 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
5492 static int ipr_setup_write_cache(struct ipr_cmnd *ipr_cmd)
5494 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5496 ipr_cmd->job_step = ipr_set_supported_devs;
5497 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
5498 struct ipr_resource_entry, queue);
5500 if (ioa_cfg->cache_state != CACHE_DISABLED)
5501 return IPR_RC_JOB_CONTINUE;
5503 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
5504 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
5505 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
5506 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL;
5508 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
5510 return IPR_RC_JOB_RETURN;
5514 * ipr_get_mode_page - Locate specified mode page
5515 * @mode_pages: mode page buffer
5516 * @page_code: page code to find
5517 * @len: minimum required length for mode page
5520 * pointer to mode page / NULL on failure
5522 static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages,
5523 u32 page_code, u32 len)
5525 struct ipr_mode_page_hdr *mode_hdr;
5529 if (!mode_pages || (mode_pages->hdr.length == 0))
5532 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len;
5533 mode_hdr = (struct ipr_mode_page_hdr *)
5534 (mode_pages->data + mode_pages->hdr.block_desc_len);
5537 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) {
5538 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr)))
5542 page_length = (sizeof(struct ipr_mode_page_hdr) +
5543 mode_hdr->page_length);
5544 length -= page_length;
5545 mode_hdr = (struct ipr_mode_page_hdr *)
5546 ((unsigned long)mode_hdr + page_length);
5553 * ipr_check_term_power - Check for term power errors
5554 * @ioa_cfg: ioa config struct
5555 * @mode_pages: IOAFP mode pages buffer
5557 * Check the IOAFP's mode page 28 for term power errors
5562 static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg,
5563 struct ipr_mode_pages *mode_pages)
5567 struct ipr_dev_bus_entry *bus;
5568 struct ipr_mode_page28 *mode_page;
5570 mode_page = ipr_get_mode_page(mode_pages, 0x28,
5571 sizeof(struct ipr_mode_page28));
5573 entry_length = mode_page->entry_length;
5575 bus = mode_page->bus;
5577 for (i = 0; i < mode_page->num_entries; i++) {
5578 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) {
5579 dev_err(&ioa_cfg->pdev->dev,
5580 "Term power is absent on scsi bus %d\n",
5584 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length);
5589 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table
5590 * @ioa_cfg: ioa config struct
5592 * Looks through the config table checking for SES devices. If
5593 * the SES device is in the SES table indicating a maximum SCSI
5594 * bus speed, the speed is limited for the bus.
5599 static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg)
5604 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
5605 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i,
5606 ioa_cfg->bus_attr[i].bus_width);
5608 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate)
5609 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate;
5614 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28
5615 * @ioa_cfg: ioa config struct
5616 * @mode_pages: mode page 28 buffer
5618 * Updates mode page 28 based on driver configuration
5623 static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg,
5624 struct ipr_mode_pages *mode_pages)
5626 int i, entry_length;
5627 struct ipr_dev_bus_entry *bus;
5628 struct ipr_bus_attributes *bus_attr;
5629 struct ipr_mode_page28 *mode_page;
5631 mode_page = ipr_get_mode_page(mode_pages, 0x28,
5632 sizeof(struct ipr_mode_page28));
5634 entry_length = mode_page->entry_length;
5636 /* Loop for each device bus entry */
5637 for (i = 0, bus = mode_page->bus;
5638 i < mode_page->num_entries;
5639 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) {
5640 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) {
5641 dev_err(&ioa_cfg->pdev->dev,
5642 "Invalid resource address reported: 0x%08X\n",
5643 IPR_GET_PHYS_LOC(bus->res_addr));
5647 bus_attr = &ioa_cfg->bus_attr[i];
5648 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY;
5649 bus->bus_width = bus_attr->bus_width;
5650 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate);
5651 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK;
5652 if (bus_attr->qas_enabled)
5653 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS;
5655 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS;
5660 * ipr_build_mode_select - Build a mode select command
5661 * @ipr_cmd: ipr command struct
5662 * @res_handle: resource handle to send command to
5663 * @parm: Byte 2 of Mode Sense command
5664 * @dma_addr: DMA buffer address
5665 * @xfer_len: data transfer length
5670 static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd,
5671 __be32 res_handle, u8 parm, u32 dma_addr,
5674 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
5675 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5677 ioarcb->res_handle = res_handle;
5678 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
5679 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5680 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT;
5681 ioarcb->cmd_pkt.cdb[1] = parm;
5682 ioarcb->cmd_pkt.cdb[4] = xfer_len;
5684 ioadl->flags_and_data_len =
5685 cpu_to_be32(IPR_IOADL_FLAGS_WRITE_LAST | xfer_len);
5686 ioadl->address = cpu_to_be32(dma_addr);
5687 ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
5688 ioarcb->write_data_transfer_length = cpu_to_be32(xfer_len);
5692 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA
5693 * @ipr_cmd: ipr command struct
5695 * This function sets up the SCSI bus attributes and sends
5696 * a Mode Select for Page 28 to activate them.
5701 static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
5703 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5704 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
5708 ipr_scsi_bus_speed_limit(ioa_cfg);
5709 ipr_check_term_power(ioa_cfg, mode_pages);
5710 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages);
5711 length = mode_pages->hdr.length + 1;
5712 mode_pages->hdr.length = 0;
5714 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
5715 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
5718 ipr_cmd->job_step = ipr_setup_write_cache;
5719 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
5722 return IPR_RC_JOB_RETURN;
5726 * ipr_build_mode_sense - Builds a mode sense command
5727 * @ipr_cmd: ipr command struct
5728 * @res: resource entry struct
5729 * @parm: Byte 2 of mode sense command
5730 * @dma_addr: DMA address of mode sense buffer
5731 * @xfer_len: Size of DMA buffer
5736 static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
5738 u8 parm, u32 dma_addr, u8 xfer_len)
5740 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
5741 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5743 ioarcb->res_handle = res_handle;
5744 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE;
5745 ioarcb->cmd_pkt.cdb[2] = parm;
5746 ioarcb->cmd_pkt.cdb[4] = xfer_len;
5747 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
5749 ioadl->flags_and_data_len =
5750 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | xfer_len);
5751 ioadl->address = cpu_to_be32(dma_addr);
5752 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
5753 ioarcb->read_data_transfer_length = cpu_to_be32(xfer_len);
5757 * ipr_reset_cmd_failed - Handle failure of IOA reset command
5758 * @ipr_cmd: ipr command struct
5760 * This function handles the failure of an IOA bringup command.
5765 static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
5767 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5768 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
5770 dev_err(&ioa_cfg->pdev->dev,
5771 "0x%02X failed with IOASC: 0x%08X\n",
5772 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
5774 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5775 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5776 return IPR_RC_JOB_RETURN;
5780 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
5781 * @ipr_cmd: ipr command struct
5783 * This function handles the failure of a Mode Sense to the IOAFP.
5784 * Some adapters do not handle all mode pages.
5787 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
5789 static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
5791 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
5793 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
5794 ipr_cmd->job_step = ipr_setup_write_cache;
5795 return IPR_RC_JOB_CONTINUE;
5798 return ipr_reset_cmd_failed(ipr_cmd);
5802 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
5803 * @ipr_cmd: ipr command struct
5805 * This function send a Page 28 mode sense to the IOA to
5806 * retrieve SCSI bus attributes.
5811 static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
5813 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5816 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
5817 0x28, ioa_cfg->vpd_cbs_dma +
5818 offsetof(struct ipr_misc_cbs, mode_pages),
5819 sizeof(struct ipr_mode_pages));
5821 ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
5822 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed;
5824 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
5827 return IPR_RC_JOB_RETURN;
5831 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA
5832 * @ipr_cmd: ipr command struct
5834 * This function enables dual IOA RAID support if possible.
5839 static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd)
5841 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5842 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
5843 struct ipr_mode_page24 *mode_page;
5847 mode_page = ipr_get_mode_page(mode_pages, 0x24,
5848 sizeof(struct ipr_mode_page24));
5851 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF;
5853 length = mode_pages->hdr.length + 1;
5854 mode_pages->hdr.length = 0;
5856 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
5857 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
5860 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
5861 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
5864 return IPR_RC_JOB_RETURN;
5868 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense
5869 * @ipr_cmd: ipr command struct
5871 * This function handles the failure of a Mode Sense to the IOAFP.
5872 * Some adapters do not handle all mode pages.
5875 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
5877 static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd)
5879 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
5881 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
5882 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
5883 return IPR_RC_JOB_CONTINUE;
5886 return ipr_reset_cmd_failed(ipr_cmd);
5890 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA
5891 * @ipr_cmd: ipr command struct
5893 * This function send a mode sense to the IOA to retrieve
5894 * the IOA Advanced Function Control mode page.
5899 static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd)
5901 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5904 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
5905 0x24, ioa_cfg->vpd_cbs_dma +
5906 offsetof(struct ipr_misc_cbs, mode_pages),
5907 sizeof(struct ipr_mode_pages));
5909 ipr_cmd->job_step = ipr_ioafp_mode_select_page24;
5910 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed;
5912 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
5915 return IPR_RC_JOB_RETURN;
5919 * ipr_init_res_table - Initialize the resource table
5920 * @ipr_cmd: ipr command struct
5922 * This function looks through the existing resource table, comparing
5923 * it with the config table. This function will take care of old/new
5924 * devices and schedule adding/removing them from the mid-layer
5928 * IPR_RC_JOB_CONTINUE
5930 static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
5932 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5933 struct ipr_resource_entry *res, *temp;
5934 struct ipr_config_table_entry *cfgte;
5939 if (ioa_cfg->cfg_table->hdr.flags & IPR_UCODE_DOWNLOAD_REQ)
5940 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n");
5942 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue)
5943 list_move_tail(&res->queue, &old_res);
5945 for (i = 0; i < ioa_cfg->cfg_table->hdr.num_entries; i++) {
5946 cfgte = &ioa_cfg->cfg_table->dev[i];
5949 list_for_each_entry_safe(res, temp, &old_res, queue) {
5950 if (!memcmp(&res->cfgte.res_addr,
5951 &cfgte->res_addr, sizeof(cfgte->res_addr))) {
5952 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
5959 if (list_empty(&ioa_cfg->free_res_q)) {
5960 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n");
5965 res = list_entry(ioa_cfg->free_res_q.next,
5966 struct ipr_resource_entry, queue);
5967 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
5968 ipr_init_res_entry(res);
5973 memcpy(&res->cfgte, cfgte, sizeof(struct ipr_config_table_entry));
5976 list_for_each_entry_safe(res, temp, &old_res, queue) {
5978 res->del_from_ml = 1;
5979 res->cfgte.res_handle = IPR_INVALID_RES_HANDLE;
5980 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
5982 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
5986 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
5987 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24;
5989 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
5992 return IPR_RC_JOB_CONTINUE;
5996 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter.
5997 * @ipr_cmd: ipr command struct
5999 * This function sends a Query IOA Configuration command
6000 * to the adapter to retrieve the IOA configuration table.
6005 static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd)
6007 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6008 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6009 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
6010 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
6011 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
6014 if (cap->cap & IPR_CAP_DUAL_IOA_RAID)
6015 ioa_cfg->dual_raid = 1;
6016 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n",
6017 ucode_vpd->major_release, ucode_vpd->card_type,
6018 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]);
6019 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6020 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6022 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG;
6023 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_config_table) >> 8) & 0xff;
6024 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_config_table) & 0xff;
6026 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
6027 ioarcb->read_data_transfer_length =
6028 cpu_to_be32(sizeof(struct ipr_config_table));
6030 ioadl->address = cpu_to_be32(ioa_cfg->cfg_table_dma);
6031 ioadl->flags_and_data_len =
6032 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | sizeof(struct ipr_config_table));
6034 ipr_cmd->job_step = ipr_init_res_table;
6036 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6039 return IPR_RC_JOB_RETURN;
6043 * ipr_ioafp_inquiry - Send an Inquiry to the adapter.
6044 * @ipr_cmd: ipr command struct
6046 * This utility function sends an inquiry to the adapter.
6051 static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
6052 u32 dma_addr, u8 xfer_len)
6054 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6055 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
6058 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6059 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6061 ioarcb->cmd_pkt.cdb[0] = INQUIRY;
6062 ioarcb->cmd_pkt.cdb[1] = flags;
6063 ioarcb->cmd_pkt.cdb[2] = page;
6064 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6066 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
6067 ioarcb->read_data_transfer_length = cpu_to_be32(xfer_len);
6069 ioadl->address = cpu_to_be32(dma_addr);
6070 ioadl->flags_and_data_len =
6071 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | xfer_len);
6073 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6078 * ipr_inquiry_page_supported - Is the given inquiry page supported
6079 * @page0: inquiry page 0 buffer
6082 * This function determines if the specified inquiry page is supported.
6085 * 1 if page is supported / 0 if not
6087 static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page)
6091 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++)
6092 if (page0->page[i] == page)
6099 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter.
6100 * @ipr_cmd: ipr command struct
6102 * This function sends a Page 0xD0 inquiry to the adapter
6103 * to retrieve adapter capabilities.
6106 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6108 static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd)
6110 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6111 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
6112 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
6115 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
6116 memset(cap, 0, sizeof(*cap));
6118 if (ipr_inquiry_page_supported(page0, 0xD0)) {
6119 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0,
6120 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap),
6121 sizeof(struct ipr_inquiry_cap));
6122 return IPR_RC_JOB_RETURN;
6126 return IPR_RC_JOB_CONTINUE;
6130 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
6131 * @ipr_cmd: ipr command struct
6133 * This function sends a Page 3 inquiry to the adapter
6134 * to retrieve software VPD information.
6137 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6139 static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
6141 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6142 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
6146 if (!ipr_inquiry_page_supported(page0, 1))
6147 ioa_cfg->cache_state = CACHE_NONE;
6149 ipr_cmd->job_step = ipr_ioafp_cap_inquiry;
6151 ipr_ioafp_inquiry(ipr_cmd, 1, 3,
6152 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
6153 sizeof(struct ipr_inquiry_page3));
6156 return IPR_RC_JOB_RETURN;
6160 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
6161 * @ipr_cmd: ipr command struct
6163 * This function sends a Page 0 inquiry to the adapter
6164 * to retrieve supported inquiry pages.
6167 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6169 static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
6171 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6176 /* Grab the type out of the VPD and store it away */
6177 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4);
6179 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
6181 ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
6183 ipr_ioafp_inquiry(ipr_cmd, 1, 0,
6184 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data),
6185 sizeof(struct ipr_inquiry_page0));
6188 return IPR_RC_JOB_RETURN;
6192 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter.
6193 * @ipr_cmd: ipr command struct
6195 * This function sends a standard inquiry to the adapter.
6200 static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
6202 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6205 ipr_cmd->job_step = ipr_ioafp_page0_inquiry;
6207 ipr_ioafp_inquiry(ipr_cmd, 0, 0,
6208 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
6209 sizeof(struct ipr_ioa_vpd));
6212 return IPR_RC_JOB_RETURN;
6216 * ipr_ioafp_indentify_hrrq - Send Identify Host RRQ.
6217 * @ipr_cmd: ipr command struct
6219 * This function send an Identify Host Request Response Queue
6220 * command to establish the HRRQ with the adapter.
6225 static int ipr_ioafp_indentify_hrrq(struct ipr_cmnd *ipr_cmd)
6227 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6228 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6231 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
6233 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q;
6234 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6236 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6237 ioarcb->cmd_pkt.cdb[2] =
6238 ((u32) ioa_cfg->host_rrq_dma >> 24) & 0xff;
6239 ioarcb->cmd_pkt.cdb[3] =
6240 ((u32) ioa_cfg->host_rrq_dma >> 16) & 0xff;
6241 ioarcb->cmd_pkt.cdb[4] =
6242 ((u32) ioa_cfg->host_rrq_dma >> 8) & 0xff;
6243 ioarcb->cmd_pkt.cdb[5] =
6244 ((u32) ioa_cfg->host_rrq_dma) & 0xff;
6245 ioarcb->cmd_pkt.cdb[7] =
6246 ((sizeof(u32) * IPR_NUM_CMD_BLKS) >> 8) & 0xff;
6247 ioarcb->cmd_pkt.cdb[8] =
6248 (sizeof(u32) * IPR_NUM_CMD_BLKS) & 0xff;
6250 ipr_cmd->job_step = ipr_ioafp_std_inquiry;
6252 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6255 return IPR_RC_JOB_RETURN;
6259 * ipr_reset_timer_done - Adapter reset timer function
6260 * @ipr_cmd: ipr command struct
6262 * Description: This function is used in adapter reset processing
6263 * for timing events. If the reset_cmd pointer in the IOA
6264 * config struct is not this adapter's we are doing nested
6265 * resets and fail_all_ops will take care of freeing the
6271 static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd)
6273 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6274 unsigned long lock_flags = 0;
6276 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
6278 if (ioa_cfg->reset_cmd == ipr_cmd) {
6279 list_del(&ipr_cmd->queue);
6280 ipr_cmd->done(ipr_cmd);
6283 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
6287 * ipr_reset_start_timer - Start a timer for adapter reset job
6288 * @ipr_cmd: ipr command struct
6289 * @timeout: timeout value
6291 * Description: This function is used in adapter reset processing
6292 * for timing events. If the reset_cmd pointer in the IOA
6293 * config struct is not this adapter's we are doing nested
6294 * resets and fail_all_ops will take care of freeing the
6300 static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
6301 unsigned long timeout)
6303 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
6304 ipr_cmd->done = ipr_reset_ioa_job;
6306 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
6307 ipr_cmd->timer.expires = jiffies + timeout;
6308 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done;
6309 add_timer(&ipr_cmd->timer);
6313 * ipr_init_ioa_mem - Initialize ioa_cfg control block
6314 * @ioa_cfg: ioa cfg struct
6319 static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg)
6321 memset(ioa_cfg->host_rrq, 0, sizeof(u32) * IPR_NUM_CMD_BLKS);
6323 /* Initialize Host RRQ pointers */
6324 ioa_cfg->hrrq_start = ioa_cfg->host_rrq;
6325 ioa_cfg->hrrq_end = &ioa_cfg->host_rrq[IPR_NUM_CMD_BLKS - 1];
6326 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
6327 ioa_cfg->toggle_bit = 1;
6329 /* Zero out config table */
6330 memset(ioa_cfg->cfg_table, 0, sizeof(struct ipr_config_table));
6334 * ipr_reset_enable_ioa - Enable the IOA following a reset.
6335 * @ipr_cmd: ipr command struct
6337 * This function reinitializes some control blocks and
6338 * enables destructive diagnostics on the adapter.
6343 static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
6345 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6346 volatile u32 int_reg;
6349 ipr_cmd->job_step = ipr_ioafp_indentify_hrrq;
6350 ipr_init_ioa_mem(ioa_cfg);
6352 ioa_cfg->allow_interrupts = 1;
6353 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
6355 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
6356 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED),
6357 ioa_cfg->regs.clr_interrupt_mask_reg);
6358 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
6359 return IPR_RC_JOB_CONTINUE;
6362 /* Enable destructive diagnostics on IOA */
6363 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg);
6365 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg);
6366 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
6368 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n");
6370 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
6371 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
6372 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
6373 ipr_cmd->done = ipr_reset_ioa_job;
6374 add_timer(&ipr_cmd->timer);
6375 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
6378 return IPR_RC_JOB_RETURN;
6382 * ipr_reset_wait_for_dump - Wait for a dump to timeout.
6383 * @ipr_cmd: ipr command struct
6385 * This function is invoked when an adapter dump has run out
6386 * of processing time.
6389 * IPR_RC_JOB_CONTINUE
6391 static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd)
6393 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6395 if (ioa_cfg->sdt_state == GET_DUMP)
6396 ioa_cfg->sdt_state = ABORT_DUMP;
6398 ipr_cmd->job_step = ipr_reset_alert;
6400 return IPR_RC_JOB_CONTINUE;
6404 * ipr_unit_check_no_data - Log a unit check/no data error log
6405 * @ioa_cfg: ioa config struct
6407 * Logs an error indicating the adapter unit checked, but for some
6408 * reason, we were unable to fetch the unit check buffer.
6413 static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg)
6415 ioa_cfg->errors_logged++;
6416 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n");
6420 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA
6421 * @ioa_cfg: ioa config struct
6423 * Fetches the unit check buffer from the adapter by clocking the data
6424 * through the mailbox register.
6429 static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
6431 unsigned long mailbox;
6432 struct ipr_hostrcb *hostrcb;
6433 struct ipr_uc_sdt sdt;
6437 mailbox = readl(ioa_cfg->ioa_mailbox);
6439 if (!ipr_sdt_is_fmt2(mailbox)) {
6440 ipr_unit_check_no_data(ioa_cfg);
6444 memset(&sdt, 0, sizeof(struct ipr_uc_sdt));
6445 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt,
6446 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32));
6448 if (rc || (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE) ||
6449 !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY)) {
6450 ipr_unit_check_no_data(ioa_cfg);
6454 /* Find length of the first sdt entry (UC buffer) */
6455 length = (be32_to_cpu(sdt.entry[0].end_offset) -
6456 be32_to_cpu(sdt.entry[0].bar_str_offset)) & IPR_FMT2_MBX_ADDR_MASK;
6458 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next,
6459 struct ipr_hostrcb, queue);
6460 list_del(&hostrcb->queue);
6461 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam));
6463 rc = ipr_get_ldump_data_section(ioa_cfg,
6464 be32_to_cpu(sdt.entry[0].bar_str_offset),
6465 (__be32 *)&hostrcb->hcam,
6466 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32));
6469 ipr_handle_log_data(ioa_cfg, hostrcb);
6470 ioasc = be32_to_cpu(hostrcb->hcam.u.error.failing_dev_ioasc);
6471 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED &&
6472 ioa_cfg->sdt_state == GET_DUMP)
6473 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
6475 ipr_unit_check_no_data(ioa_cfg);
6477 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
6481 * ipr_reset_restore_cfg_space - Restore PCI config space.
6482 * @ipr_cmd: ipr command struct
6484 * Description: This function restores the saved PCI config space of
6485 * the adapter, fails all outstanding ops back to the callers, and
6486 * fetches the dump/unit check if applicable to this reset.
6489 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6491 static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
6493 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6497 rc = pci_restore_state(ioa_cfg->pdev);
6499 if (rc != PCIBIOS_SUCCESSFUL) {
6500 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
6501 return IPR_RC_JOB_CONTINUE;
6504 if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
6505 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
6506 return IPR_RC_JOB_CONTINUE;
6509 ipr_fail_all_ops(ioa_cfg);
6511 if (ioa_cfg->ioa_unit_checked) {
6512 ioa_cfg->ioa_unit_checked = 0;
6513 ipr_get_unit_check_buffer(ioa_cfg);
6514 ipr_cmd->job_step = ipr_reset_alert;
6515 ipr_reset_start_timer(ipr_cmd, 0);
6516 return IPR_RC_JOB_RETURN;
6519 if (ioa_cfg->in_ioa_bringdown) {
6520 ipr_cmd->job_step = ipr_ioa_bringdown_done;
6522 ipr_cmd->job_step = ipr_reset_enable_ioa;
6524 if (GET_DUMP == ioa_cfg->sdt_state) {
6525 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_TIMEOUT);
6526 ipr_cmd->job_step = ipr_reset_wait_for_dump;
6527 schedule_work(&ioa_cfg->work_q);
6528 return IPR_RC_JOB_RETURN;
6533 return IPR_RC_JOB_CONTINUE;
6537 * ipr_reset_bist_done - BIST has completed on the adapter.
6538 * @ipr_cmd: ipr command struct
6540 * Description: Unblock config space and resume the reset process.
6543 * IPR_RC_JOB_CONTINUE
6545 static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd)
6548 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev);
6549 ipr_cmd->job_step = ipr_reset_restore_cfg_space;
6551 return IPR_RC_JOB_CONTINUE;
6555 * ipr_reset_start_bist - Run BIST on the adapter.
6556 * @ipr_cmd: ipr command struct
6558 * Description: This function runs BIST on the adapter, then delays 2 seconds.
6561 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6563 static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
6565 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6569 pci_block_user_cfg_access(ioa_cfg->pdev);
6570 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START);
6572 if (rc != PCIBIOS_SUCCESSFUL) {
6573 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev);
6574 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
6575 rc = IPR_RC_JOB_CONTINUE;
6577 ipr_cmd->job_step = ipr_reset_bist_done;
6578 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
6579 rc = IPR_RC_JOB_RETURN;
6587 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter
6588 * @ipr_cmd: ipr command struct
6590 * Description: This clears PCI reset to the adapter and delays two seconds.
6595 static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd)
6598 pci_set_pcie_reset_state(ipr_cmd->ioa_cfg->pdev, pcie_deassert_reset);
6599 ipr_cmd->job_step = ipr_reset_bist_done;
6600 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
6602 return IPR_RC_JOB_RETURN;
6606 * ipr_reset_slot_reset - Reset the PCI slot of the adapter.
6607 * @ipr_cmd: ipr command struct
6609 * Description: This asserts PCI reset to the adapter.
6614 static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd)
6616 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6617 struct pci_dev *pdev = ioa_cfg->pdev;
6620 pci_block_user_cfg_access(pdev);
6621 pci_set_pcie_reset_state(pdev, pcie_warm_reset);
6622 ipr_cmd->job_step = ipr_reset_slot_reset_done;
6623 ipr_reset_start_timer(ipr_cmd, IPR_PCI_RESET_TIMEOUT);
6625 return IPR_RC_JOB_RETURN;
6629 * ipr_reset_allowed - Query whether or not IOA can be reset
6630 * @ioa_cfg: ioa config struct
6633 * 0 if reset not allowed / non-zero if reset is allowed
6635 static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg)
6637 volatile u32 temp_reg;
6639 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
6640 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0);
6644 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA.
6645 * @ipr_cmd: ipr command struct
6647 * Description: This function waits for adapter permission to run BIST,
6648 * then runs BIST. If the adapter does not give permission after a
6649 * reasonable time, we will reset the adapter anyway. The impact of
6650 * resetting the adapter without warning the adapter is the risk of
6651 * losing the persistent error log on the adapter. If the adapter is
6652 * reset while it is writing to the flash on the adapter, the flash
6653 * segment will have bad ECC and be zeroed.
6656 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6658 static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd)
6660 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6661 int rc = IPR_RC_JOB_RETURN;
6663 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) {
6664 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
6665 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
6667 ipr_cmd->job_step = ioa_cfg->reset;
6668 rc = IPR_RC_JOB_CONTINUE;
6675 * ipr_reset_alert_part2 - Alert the adapter of a pending reset
6676 * @ipr_cmd: ipr command struct
6678 * Description: This function alerts the adapter that it will be reset.
6679 * If memory space is not currently enabled, proceed directly
6680 * to running BIST on the adapter. The timer must always be started
6681 * so we guarantee we do not run BIST from ipr_isr.
6686 static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd)
6688 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6693 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg);
6695 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) {
6696 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
6697 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg);
6698 ipr_cmd->job_step = ipr_reset_wait_to_start_bist;
6700 ipr_cmd->job_step = ioa_cfg->reset;
6703 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
6704 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
6707 return IPR_RC_JOB_RETURN;
6711 * ipr_reset_ucode_download_done - Microcode download completion
6712 * @ipr_cmd: ipr command struct
6714 * Description: This function unmaps the microcode download buffer.
6717 * IPR_RC_JOB_CONTINUE
6719 static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd)
6721 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6722 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
6724 pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist,
6725 sglist->num_sg, DMA_TO_DEVICE);
6727 ipr_cmd->job_step = ipr_reset_alert;
6728 return IPR_RC_JOB_CONTINUE;
6732 * ipr_reset_ucode_download - Download microcode to the adapter
6733 * @ipr_cmd: ipr command struct
6735 * Description: This function checks to see if it there is microcode
6736 * to download to the adapter. If there is, a download is performed.
6739 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6741 static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
6743 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6744 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
6747 ipr_cmd->job_step = ipr_reset_alert;
6750 return IPR_RC_JOB_CONTINUE;
6752 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6753 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6754 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER;
6755 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE;
6756 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16;
6757 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
6758 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
6760 ipr_build_ucode_ioadl(ipr_cmd, sglist);
6761 ipr_cmd->job_step = ipr_reset_ucode_download_done;
6763 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
6764 IPR_WRITE_BUFFER_TIMEOUT);
6767 return IPR_RC_JOB_RETURN;
6771 * ipr_reset_shutdown_ioa - Shutdown the adapter
6772 * @ipr_cmd: ipr command struct
6774 * Description: This function issues an adapter shutdown of the
6775 * specified type to the specified adapter as part of the
6776 * adapter reset job.
6779 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6781 static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
6783 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6784 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type;
6785 unsigned long timeout;
6786 int rc = IPR_RC_JOB_CONTINUE;
6789 if (shutdown_type != IPR_SHUTDOWN_NONE && !ioa_cfg->ioa_is_dead) {
6790 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6791 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6792 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
6793 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type;
6795 if (shutdown_type == IPR_SHUTDOWN_NORMAL)
6796 timeout = IPR_SHUTDOWN_TIMEOUT;
6797 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL)
6798 timeout = IPR_INTERNAL_TIMEOUT;
6799 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
6800 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO;
6802 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT;
6804 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout);
6806 rc = IPR_RC_JOB_RETURN;
6807 ipr_cmd->job_step = ipr_reset_ucode_download;
6809 ipr_cmd->job_step = ipr_reset_alert;
6816 * ipr_reset_ioa_job - Adapter reset job
6817 * @ipr_cmd: ipr command struct
6819 * Description: This function is the job router for the adapter reset job.
6824 static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
6827 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6830 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
6832 if (ioa_cfg->reset_cmd != ipr_cmd) {
6834 * We are doing nested adapter resets and this is
6835 * not the current reset job.
6837 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6841 if (IPR_IOASC_SENSE_KEY(ioasc)) {
6842 rc = ipr_cmd->job_step_failed(ipr_cmd);
6843 if (rc == IPR_RC_JOB_RETURN)
6847 ipr_reinit_ipr_cmnd(ipr_cmd);
6848 ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
6849 rc = ipr_cmd->job_step(ipr_cmd);
6850 } while(rc == IPR_RC_JOB_CONTINUE);
6854 * _ipr_initiate_ioa_reset - Initiate an adapter reset
6855 * @ioa_cfg: ioa config struct
6856 * @job_step: first job step of reset job
6857 * @shutdown_type: shutdown type
6859 * Description: This function will initiate the reset of the given adapter
6860 * starting at the selected job step.
6861 * If the caller needs to wait on the completion of the reset,
6862 * the caller must sleep on the reset_wait_q.
6867 static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
6868 int (*job_step) (struct ipr_cmnd *),
6869 enum ipr_shutdown_type shutdown_type)
6871 struct ipr_cmnd *ipr_cmd;
6873 ioa_cfg->in_reset_reload = 1;
6874 ioa_cfg->allow_cmds = 0;
6875 scsi_block_requests(ioa_cfg->host);
6877 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
6878 ioa_cfg->reset_cmd = ipr_cmd;
6879 ipr_cmd->job_step = job_step;
6880 ipr_cmd->u.shutdown_type = shutdown_type;
6882 ipr_reset_ioa_job(ipr_cmd);
6886 * ipr_initiate_ioa_reset - Initiate an adapter reset
6887 * @ioa_cfg: ioa config struct
6888 * @shutdown_type: shutdown type
6890 * Description: This function will initiate the reset of the given adapter.
6891 * If the caller needs to wait on the completion of the reset,
6892 * the caller must sleep on the reset_wait_q.
6897 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
6898 enum ipr_shutdown_type shutdown_type)
6900 if (ioa_cfg->ioa_is_dead)
6903 if (ioa_cfg->in_reset_reload && ioa_cfg->sdt_state == GET_DUMP)
6904 ioa_cfg->sdt_state = ABORT_DUMP;
6906 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) {
6907 dev_err(&ioa_cfg->pdev->dev,
6908 "IOA taken offline - error recovery failed\n");
6910 ioa_cfg->reset_retries = 0;
6911 ioa_cfg->ioa_is_dead = 1;
6913 if (ioa_cfg->in_ioa_bringdown) {
6914 ioa_cfg->reset_cmd = NULL;
6915 ioa_cfg->in_reset_reload = 0;
6916 ipr_fail_all_ops(ioa_cfg);
6917 wake_up_all(&ioa_cfg->reset_wait_q);
6919 spin_unlock_irq(ioa_cfg->host->host_lock);
6920 scsi_unblock_requests(ioa_cfg->host);
6921 spin_lock_irq(ioa_cfg->host->host_lock);
6924 ioa_cfg->in_ioa_bringdown = 1;
6925 shutdown_type = IPR_SHUTDOWN_NONE;
6929 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa,
6934 * ipr_reset_freeze - Hold off all I/O activity
6935 * @ipr_cmd: ipr command struct
6937 * Description: If the PCI slot is frozen, hold off all I/O
6938 * activity; then, as soon as the slot is available again,
6939 * initiate an adapter reset.
6941 static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd)
6943 /* Disallow new interrupts, avoid loop */
6944 ipr_cmd->ioa_cfg->allow_interrupts = 0;
6945 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
6946 ipr_cmd->done = ipr_reset_ioa_job;
6947 return IPR_RC_JOB_RETURN;
6951 * ipr_pci_frozen - Called when slot has experienced a PCI bus error.
6952 * @pdev: PCI device struct
6954 * Description: This routine is called to tell us that the PCI bus
6955 * is down. Can't do anything here, except put the device driver
6956 * into a holding pattern, waiting for the PCI bus to come back.
6958 static void ipr_pci_frozen(struct pci_dev *pdev)
6960 unsigned long flags = 0;
6961 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
6963 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6964 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE);
6965 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6969 * ipr_pci_slot_reset - Called when PCI slot has been reset.
6970 * @pdev: PCI device struct
6972 * Description: This routine is called by the pci error recovery
6973 * code after the PCI slot has been reset, just before we
6974 * should resume normal operations.
6976 static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev)
6978 unsigned long flags = 0;
6979 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
6981 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6982 if (ioa_cfg->needs_warm_reset)
6983 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
6985 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space,
6987 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6988 return PCI_ERS_RESULT_RECOVERED;
6992 * ipr_pci_perm_failure - Called when PCI slot is dead for good.
6993 * @pdev: PCI device struct
6995 * Description: This routine is called when the PCI bus has
6996 * permanently failed.
6998 static void ipr_pci_perm_failure(struct pci_dev *pdev)
7000 unsigned long flags = 0;
7001 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7003 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
7004 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
7005 ioa_cfg->sdt_state = ABORT_DUMP;
7006 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES;
7007 ioa_cfg->in_ioa_bringdown = 1;
7008 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7009 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
7013 * ipr_pci_error_detected - Called when a PCI error is detected.
7014 * @pdev: PCI device struct
7015 * @state: PCI channel state
7017 * Description: Called when a PCI error is detected.
7020 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
7022 static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
7023 pci_channel_state_t state)
7026 case pci_channel_io_frozen:
7027 ipr_pci_frozen(pdev);
7028 return PCI_ERS_RESULT_NEED_RESET;
7029 case pci_channel_io_perm_failure:
7030 ipr_pci_perm_failure(pdev);
7031 return PCI_ERS_RESULT_DISCONNECT;
7036 return PCI_ERS_RESULT_NEED_RESET;
7040 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..)
7041 * @ioa_cfg: ioa cfg struct
7043 * Description: This is the second phase of adapter intialization
7044 * This function takes care of initilizing the adapter to the point
7045 * where it can accept new commands.
7048 * 0 on sucess / -EIO on failure
7050 static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
7053 unsigned long host_lock_flags = 0;
7056 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7057 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
7058 if (ioa_cfg->needs_hard_reset) {
7059 ioa_cfg->needs_hard_reset = 0;
7060 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7062 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa,
7065 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7066 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
7067 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7069 if (ioa_cfg->ioa_is_dead) {
7071 } else if (ipr_invalid_adapter(ioa_cfg)) {
7075 dev_err(&ioa_cfg->pdev->dev,
7076 "Adapter not supported in this hardware configuration.\n");
7079 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7086 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter
7087 * @ioa_cfg: ioa config struct
7092 static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
7096 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
7097 if (ioa_cfg->ipr_cmnd_list[i])
7098 pci_pool_free(ioa_cfg->ipr_cmd_pool,
7099 ioa_cfg->ipr_cmnd_list[i],
7100 ioa_cfg->ipr_cmnd_list_dma[i]);
7102 ioa_cfg->ipr_cmnd_list[i] = NULL;
7105 if (ioa_cfg->ipr_cmd_pool)
7106 pci_pool_destroy (ioa_cfg->ipr_cmd_pool);
7108 ioa_cfg->ipr_cmd_pool = NULL;
7112 * ipr_free_mem - Frees memory allocated for an adapter
7113 * @ioa_cfg: ioa cfg struct
7118 static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg)
7122 kfree(ioa_cfg->res_entries);
7123 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs),
7124 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
7125 ipr_free_cmd_blks(ioa_cfg);
7126 pci_free_consistent(ioa_cfg->pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
7127 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
7128 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_config_table),
7130 ioa_cfg->cfg_table_dma);
7132 for (i = 0; i < IPR_NUM_HCAMS; i++) {
7133 pci_free_consistent(ioa_cfg->pdev,
7134 sizeof(struct ipr_hostrcb),
7135 ioa_cfg->hostrcb[i],
7136 ioa_cfg->hostrcb_dma[i]);
7139 ipr_free_dump(ioa_cfg);
7140 kfree(ioa_cfg->trace);
7144 * ipr_free_all_resources - Free all allocated resources for an adapter.
7145 * @ipr_cmd: ipr command struct
7147 * This function frees all allocated resources for the
7148 * specified adapter.
7153 static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
7155 struct pci_dev *pdev = ioa_cfg->pdev;
7158 free_irq(pdev->irq, ioa_cfg);
7159 iounmap(ioa_cfg->hdw_dma_regs);
7160 pci_release_regions(pdev);
7161 ipr_free_mem(ioa_cfg);
7162 scsi_host_put(ioa_cfg->host);
7163 pci_disable_device(pdev);
7168 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter
7169 * @ioa_cfg: ioa config struct
7172 * 0 on success / -ENOMEM on allocation failure
7174 static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
7176 struct ipr_cmnd *ipr_cmd;
7177 struct ipr_ioarcb *ioarcb;
7178 dma_addr_t dma_addr;
7181 ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev,
7182 sizeof(struct ipr_cmnd), 8, 0);
7184 if (!ioa_cfg->ipr_cmd_pool)
7187 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
7188 ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr);
7191 ipr_free_cmd_blks(ioa_cfg);
7195 memset(ipr_cmd, 0, sizeof(*ipr_cmd));
7196 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd;
7197 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr;
7199 ioarcb = &ipr_cmd->ioarcb;
7200 ioarcb->ioarcb_host_pci_addr = cpu_to_be32(dma_addr);
7201 ioarcb->host_response_handle = cpu_to_be32(i << 2);
7202 ioarcb->write_ioadl_addr =
7203 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioadl));
7204 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
7205 ioarcb->ioasa_host_pci_addr =
7206 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioasa));
7207 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa));
7208 ipr_cmd->cmd_index = i;
7209 ipr_cmd->ioa_cfg = ioa_cfg;
7210 ipr_cmd->sense_buffer_dma = dma_addr +
7211 offsetof(struct ipr_cmnd, sense_buffer);
7213 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
7220 * ipr_alloc_mem - Allocate memory for an adapter
7221 * @ioa_cfg: ioa config struct
7224 * 0 on success / non-zero for error
7226 static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
7228 struct pci_dev *pdev = ioa_cfg->pdev;
7229 int i, rc = -ENOMEM;
7232 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) *
7233 IPR_MAX_PHYSICAL_DEVS, GFP_KERNEL);
7235 if (!ioa_cfg->res_entries)
7238 for (i = 0; i < IPR_MAX_PHYSICAL_DEVS; i++)
7239 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
7241 ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev,
7242 sizeof(struct ipr_misc_cbs),
7243 &ioa_cfg->vpd_cbs_dma);
7245 if (!ioa_cfg->vpd_cbs)
7246 goto out_free_res_entries;
7248 if (ipr_alloc_cmd_blks(ioa_cfg))
7249 goto out_free_vpd_cbs;
7251 ioa_cfg->host_rrq = pci_alloc_consistent(ioa_cfg->pdev,
7252 sizeof(u32) * IPR_NUM_CMD_BLKS,
7253 &ioa_cfg->host_rrq_dma);
7255 if (!ioa_cfg->host_rrq)
7256 goto out_ipr_free_cmd_blocks;
7258 ioa_cfg->cfg_table = pci_alloc_consistent(ioa_cfg->pdev,
7259 sizeof(struct ipr_config_table),
7260 &ioa_cfg->cfg_table_dma);
7262 if (!ioa_cfg->cfg_table)
7263 goto out_free_host_rrq;
7265 for (i = 0; i < IPR_NUM_HCAMS; i++) {
7266 ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev,
7267 sizeof(struct ipr_hostrcb),
7268 &ioa_cfg->hostrcb_dma[i]);
7270 if (!ioa_cfg->hostrcb[i])
7271 goto out_free_hostrcb_dma;
7273 ioa_cfg->hostrcb[i]->hostrcb_dma =
7274 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam);
7275 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg;
7276 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
7279 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) *
7280 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL);
7282 if (!ioa_cfg->trace)
7283 goto out_free_hostrcb_dma;
7290 out_free_hostrcb_dma:
7292 pci_free_consistent(pdev, sizeof(struct ipr_hostrcb),
7293 ioa_cfg->hostrcb[i],
7294 ioa_cfg->hostrcb_dma[i]);
7296 pci_free_consistent(pdev, sizeof(struct ipr_config_table),
7297 ioa_cfg->cfg_table, ioa_cfg->cfg_table_dma);
7299 pci_free_consistent(pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
7300 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
7301 out_ipr_free_cmd_blocks:
7302 ipr_free_cmd_blks(ioa_cfg);
7304 pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs),
7305 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
7306 out_free_res_entries:
7307 kfree(ioa_cfg->res_entries);
7312 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values
7313 * @ioa_cfg: ioa config struct
7318 static void __devinit ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg)
7322 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
7323 ioa_cfg->bus_attr[i].bus = i;
7324 ioa_cfg->bus_attr[i].qas_enabled = 0;
7325 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH;
7326 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds))
7327 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed];
7329 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE;
7334 * ipr_init_ioa_cfg - Initialize IOA config struct
7335 * @ioa_cfg: ioa config struct
7336 * @host: scsi host struct
7337 * @pdev: PCI dev struct
7342 static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
7343 struct Scsi_Host *host, struct pci_dev *pdev)
7345 const struct ipr_interrupt_offsets *p;
7346 struct ipr_interrupts *t;
7349 ioa_cfg->host = host;
7350 ioa_cfg->pdev = pdev;
7351 ioa_cfg->log_level = ipr_log_level;
7352 ioa_cfg->doorbell = IPR_DOORBELL;
7353 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
7354 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
7355 sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL);
7356 sprintf(ioa_cfg->ipr_pending_label, IPR_PENDQ_LABEL);
7357 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START);
7358 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL);
7359 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL);
7360 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL);
7362 INIT_LIST_HEAD(&ioa_cfg->free_q);
7363 INIT_LIST_HEAD(&ioa_cfg->pending_q);
7364 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q);
7365 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q);
7366 INIT_LIST_HEAD(&ioa_cfg->free_res_q);
7367 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
7368 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
7369 init_waitqueue_head(&ioa_cfg->reset_wait_q);
7370 ioa_cfg->sdt_state = INACTIVE;
7371 if (ipr_enable_cache)
7372 ioa_cfg->cache_state = CACHE_ENABLED;
7374 ioa_cfg->cache_state = CACHE_DISABLED;
7376 ipr_initialize_bus_attr(ioa_cfg);
7378 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS;
7379 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET;
7380 host->max_channel = IPR_MAX_BUS_TO_SCAN;
7381 host->unique_id = host->host_no;
7382 host->max_cmd_len = IPR_MAX_CDB_LEN;
7383 pci_set_drvdata(pdev, ioa_cfg);
7385 p = &ioa_cfg->chip_cfg->regs;
7387 base = ioa_cfg->hdw_dma_regs;
7389 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
7390 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
7391 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
7392 t->clr_interrupt_reg = base + p->clr_interrupt_reg;
7393 t->sense_interrupt_reg = base + p->sense_interrupt_reg;
7394 t->ioarrin_reg = base + p->ioarrin_reg;
7395 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
7396 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
7397 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
7401 * ipr_get_chip_cfg - Find adapter chip configuration
7402 * @dev_id: PCI device id struct
7405 * ptr to chip config on success / NULL on failure
7407 static const struct ipr_chip_cfg_t * __devinit
7408 ipr_get_chip_cfg(const struct pci_device_id *dev_id)
7412 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++)
7413 if (ipr_chip[i].vendor == dev_id->vendor &&
7414 ipr_chip[i].device == dev_id->device)
7415 return ipr_chip[i].cfg;
7420 * ipr_probe_ioa - Allocates memory and does first stage of initialization
7421 * @pdev: PCI device struct
7422 * @dev_id: PCI device id struct
7425 * 0 on success / non-zero on failure
7427 static int __devinit ipr_probe_ioa(struct pci_dev *pdev,
7428 const struct pci_device_id *dev_id)
7430 struct ipr_ioa_cfg *ioa_cfg;
7431 struct Scsi_Host *host;
7432 unsigned long ipr_regs_pci;
7433 void __iomem *ipr_regs;
7434 int rc = PCIBIOS_SUCCESSFUL;
7435 volatile u32 mask, uproc, interrupts;
7439 if ((rc = pci_enable_device(pdev))) {
7440 dev_err(&pdev->dev, "Cannot enable adapter\n");
7444 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
7446 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
7449 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n");
7454 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
7455 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
7456 ata_host_init(&ioa_cfg->ata_host, &pdev->dev,
7457 sata_port_info.flags, &ipr_sata_ops);
7459 ioa_cfg->chip_cfg = ipr_get_chip_cfg(dev_id);
7461 if (!ioa_cfg->chip_cfg) {
7462 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n",
7463 dev_id->vendor, dev_id->device);
7464 goto out_scsi_host_put;
7467 if (ipr_transop_timeout)
7468 ioa_cfg->transop_timeout = ipr_transop_timeout;
7469 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT)
7470 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT;
7472 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT;
7474 ioa_cfg->revid = pdev->revision;
7476 ipr_regs_pci = pci_resource_start(pdev, 0);
7478 rc = pci_request_regions(pdev, IPR_NAME);
7481 "Couldn't register memory range of registers\n");
7482 goto out_scsi_host_put;
7485 ipr_regs = ioremap(ipr_regs_pci, pci_resource_len(pdev, 0));
7489 "Couldn't map memory range of registers\n");
7491 goto out_release_regions;
7494 ioa_cfg->hdw_dma_regs = ipr_regs;
7495 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci;
7496 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs;
7498 ipr_init_ioa_cfg(ioa_cfg, host, pdev);
7500 pci_set_master(pdev);
7502 rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
7504 dev_err(&pdev->dev, "Failed to set PCI DMA mask\n");
7508 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
7509 ioa_cfg->chip_cfg->cache_line_size);
7511 if (rc != PCIBIOS_SUCCESSFUL) {
7512 dev_err(&pdev->dev, "Write of cache line size failed\n");
7517 /* Save away PCI config space for use following IOA reset */
7518 rc = pci_save_state(pdev);
7520 if (rc != PCIBIOS_SUCCESSFUL) {
7521 dev_err(&pdev->dev, "Failed to save PCI config space\n");
7526 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg)))
7529 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg)))
7532 rc = ipr_alloc_mem(ioa_cfg);
7535 "Couldn't allocate enough memory for device driver!\n");
7540 * If HRRQ updated interrupt is not masked, or reset alert is set,
7541 * the card is in an unknown state and needs a hard reset
7543 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7544 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg);
7545 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg);
7546 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT))
7547 ioa_cfg->needs_hard_reset = 1;
7548 if (interrupts & IPR_PCII_ERROR_INTERRUPTS)
7549 ioa_cfg->needs_hard_reset = 1;
7550 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED)
7551 ioa_cfg->ioa_unit_checked = 1;
7553 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
7554 rc = request_irq(pdev->irq, ipr_isr, IRQF_SHARED, IPR_NAME, ioa_cfg);
7557 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",
7562 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) ||
7563 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) {
7564 ioa_cfg->needs_warm_reset = 1;
7565 ioa_cfg->reset = ipr_reset_slot_reset;
7567 ioa_cfg->reset = ipr_reset_start_bist;
7569 spin_lock(&ipr_driver_lock);
7570 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head);
7571 spin_unlock(&ipr_driver_lock);
7578 ipr_free_mem(ioa_cfg);
7581 out_release_regions:
7582 pci_release_regions(pdev);
7584 scsi_host_put(host);
7586 pci_disable_device(pdev);
7591 * ipr_scan_vsets - Scans for VSET devices
7592 * @ioa_cfg: ioa config struct
7594 * Description: Since the VSET resources do not follow SAM in that we can have
7595 * sparse LUNs with no LUN 0, we have to scan for these ourselves.
7600 static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg)
7604 for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++)
7605 for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ )
7606 scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun);
7610 * ipr_initiate_ioa_bringdown - Bring down an adapter
7611 * @ioa_cfg: ioa config struct
7612 * @shutdown_type: shutdown type
7614 * Description: This function will initiate bringing down the adapter.
7615 * This consists of issuing an IOA shutdown to the adapter
7616 * to flush the cache, and running BIST.
7617 * If the caller needs to wait on the completion of the reset,
7618 * the caller must sleep on the reset_wait_q.
7623 static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg,
7624 enum ipr_shutdown_type shutdown_type)
7627 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
7628 ioa_cfg->sdt_state = ABORT_DUMP;
7629 ioa_cfg->reset_retries = 0;
7630 ioa_cfg->in_ioa_bringdown = 1;
7631 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
7636 * __ipr_remove - Remove a single adapter
7637 * @pdev: pci device struct
7639 * Adapter hot plug remove entry point.
7644 static void __ipr_remove(struct pci_dev *pdev)
7646 unsigned long host_lock_flags = 0;
7647 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7650 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7651 while(ioa_cfg->in_reset_reload) {
7652 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7653 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
7654 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7657 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
7659 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7660 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
7661 flush_scheduled_work();
7662 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7664 spin_lock(&ipr_driver_lock);
7665 list_del(&ioa_cfg->queue);
7666 spin_unlock(&ipr_driver_lock);
7668 if (ioa_cfg->sdt_state == ABORT_DUMP)
7669 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
7670 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7672 ipr_free_all_resources(ioa_cfg);
7678 * ipr_remove - IOA hot plug remove entry point
7679 * @pdev: pci device struct
7681 * Adapter hot plug remove entry point.
7686 static void ipr_remove(struct pci_dev *pdev)
7688 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7692 ipr_remove_trace_file(&ioa_cfg->host->shost_classdev.kobj,
7694 ipr_remove_dump_file(&ioa_cfg->host->shost_classdev.kobj,
7696 scsi_remove_host(ioa_cfg->host);
7704 * ipr_probe - Adapter hot plug add entry point
7707 * 0 on success / non-zero on failure
7709 static int __devinit ipr_probe(struct pci_dev *pdev,
7710 const struct pci_device_id *dev_id)
7712 struct ipr_ioa_cfg *ioa_cfg;
7715 rc = ipr_probe_ioa(pdev, dev_id);
7720 ioa_cfg = pci_get_drvdata(pdev);
7721 rc = ipr_probe_ioa_part2(ioa_cfg);
7728 rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
7735 rc = ipr_create_trace_file(&ioa_cfg->host->shost_classdev.kobj,
7739 scsi_remove_host(ioa_cfg->host);
7744 rc = ipr_create_dump_file(&ioa_cfg->host->shost_classdev.kobj,
7748 ipr_remove_trace_file(&ioa_cfg->host->shost_classdev.kobj,
7750 scsi_remove_host(ioa_cfg->host);
7755 scsi_scan_host(ioa_cfg->host);
7756 ipr_scan_vsets(ioa_cfg);
7757 scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN);
7758 ioa_cfg->allow_ml_add_del = 1;
7759 ioa_cfg->host->max_channel = IPR_VSET_BUS;
7760 schedule_work(&ioa_cfg->work_q);
7765 * ipr_shutdown - Shutdown handler.
7766 * @pdev: pci device struct
7768 * This function is invoked upon system shutdown/reboot. It will issue
7769 * an adapter shutdown to the adapter to flush the write cache.
7774 static void ipr_shutdown(struct pci_dev *pdev)
7776 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7777 unsigned long lock_flags = 0;
7779 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
7780 while(ioa_cfg->in_reset_reload) {
7781 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
7782 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
7783 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
7786 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
7787 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
7788 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
7791 static struct pci_device_id ipr_pci_table[] __devinitdata = {
7792 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
7793 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 },
7794 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
7795 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 },
7796 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
7797 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 },
7798 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
7799 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 },
7800 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
7801 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 },
7802 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
7803 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 },
7804 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
7805 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 },
7806 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
7807 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0,
7808 IPR_USE_LONG_TRANSOP_TIMEOUT },
7809 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
7810 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
7811 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
7812 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
7813 IPR_USE_LONG_TRANSOP_TIMEOUT },
7814 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
7815 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
7816 IPR_USE_LONG_TRANSOP_TIMEOUT },
7817 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
7818 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
7819 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
7820 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
7821 IPR_USE_LONG_TRANSOP_TIMEOUT},
7822 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
7823 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
7824 IPR_USE_LONG_TRANSOP_TIMEOUT },
7825 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
7826 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0,
7827 IPR_USE_LONG_TRANSOP_TIMEOUT },
7828 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
7829 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575D, 0, 0,
7830 IPR_USE_LONG_TRANSOP_TIMEOUT },
7831 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
7832 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 },
7833 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
7834 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0,
7835 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET },
7836 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
7837 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 },
7838 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
7839 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 },
7840 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
7841 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0,
7842 IPR_USE_LONG_TRANSOP_TIMEOUT },
7843 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
7844 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0,
7845 IPR_USE_LONG_TRANSOP_TIMEOUT },
7846 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SCAMP_E,
7847 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0,
7848 IPR_USE_LONG_TRANSOP_TIMEOUT },
7851 MODULE_DEVICE_TABLE(pci, ipr_pci_table);
7853 static struct pci_error_handlers ipr_err_handler = {
7854 .error_detected = ipr_pci_error_detected,
7855 .slot_reset = ipr_pci_slot_reset,
7858 static struct pci_driver ipr_driver = {
7860 .id_table = ipr_pci_table,
7862 .remove = ipr_remove,
7863 .shutdown = ipr_shutdown,
7864 .err_handler = &ipr_err_handler,
7865 .dynids.use_driver_data = 1
7869 * ipr_init - Module entry point
7872 * 0 on success / negative value on failure
7874 static int __init ipr_init(void)
7876 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n",
7877 IPR_DRIVER_VERSION, IPR_DRIVER_DATE);
7879 return pci_register_driver(&ipr_driver);
7883 * ipr_exit - Module unload
7885 * Module unload entry point.
7890 static void __exit ipr_exit(void)
7892 pci_unregister_driver(&ipr_driver);
7895 module_init(ipr_init);
7896 module_exit(ipr_exit);