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_unmap_sglist - Unmap scatterlist if mapped
544 * @ioa_cfg: ioa config struct
545 * @ipr_cmd: ipr command struct
550 static void ipr_unmap_sglist(struct ipr_ioa_cfg *ioa_cfg,
551 struct ipr_cmnd *ipr_cmd)
553 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
555 if (ipr_cmd->dma_use_sg) {
556 if (scsi_cmd->use_sg > 0) {
557 pci_unmap_sg(ioa_cfg->pdev, scsi_cmd->request_buffer,
559 scsi_cmd->sc_data_direction);
561 pci_unmap_single(ioa_cfg->pdev, ipr_cmd->dma_handle,
562 scsi_cmd->request_bufflen,
563 scsi_cmd->sc_data_direction);
569 * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts
570 * @ioa_cfg: ioa config struct
571 * @clr_ints: interrupts to clear
573 * This function masks all interrupts on the adapter, then clears the
574 * interrupts specified in the mask
579 static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg,
582 volatile u32 int_reg;
584 /* Stop new interrupts */
585 ioa_cfg->allow_interrupts = 0;
587 /* Set interrupt mask to stop all new interrupts */
588 writel(~0, ioa_cfg->regs.set_interrupt_mask_reg);
590 /* Clear any pending interrupts */
591 writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg);
592 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
596 * ipr_save_pcix_cmd_reg - Save PCI-X command register
597 * @ioa_cfg: ioa config struct
600 * 0 on success / -EIO on failure
602 static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
604 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
606 if (pcix_cmd_reg == 0)
609 if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
610 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
611 dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n");
615 ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO;
620 * ipr_set_pcix_cmd_reg - Setup PCI-X command register
621 * @ioa_cfg: ioa config struct
624 * 0 on success / -EIO on failure
626 static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
628 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
631 if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
632 ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
633 dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n");
642 * ipr_sata_eh_done - done function for aborted SATA commands
643 * @ipr_cmd: ipr command struct
645 * This function is invoked for ops generated to SATA
646 * devices which are being aborted.
651 static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd)
653 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
654 struct ata_queued_cmd *qc = ipr_cmd->qc;
655 struct ipr_sata_port *sata_port = qc->ap->private_data;
657 qc->err_mask |= AC_ERR_OTHER;
658 sata_port->ioasa.status |= ATA_BUSY;
659 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
664 * ipr_scsi_eh_done - mid-layer done function for aborted ops
665 * @ipr_cmd: ipr command struct
667 * This function is invoked by the interrupt handler for
668 * ops generated by the SCSI mid-layer which are being aborted.
673 static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd)
675 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
676 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
678 scsi_cmd->result |= (DID_ERROR << 16);
680 ipr_unmap_sglist(ioa_cfg, ipr_cmd);
681 scsi_cmd->scsi_done(scsi_cmd);
682 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
686 * ipr_fail_all_ops - Fails all outstanding ops.
687 * @ioa_cfg: ioa config struct
689 * This function fails all outstanding ops.
694 static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg)
696 struct ipr_cmnd *ipr_cmd, *temp;
699 list_for_each_entry_safe(ipr_cmd, temp, &ioa_cfg->pending_q, queue) {
700 list_del(&ipr_cmd->queue);
702 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_IOA_WAS_RESET);
703 ipr_cmd->ioasa.ilid = cpu_to_be32(IPR_DRIVER_ILID);
705 if (ipr_cmd->scsi_cmd)
706 ipr_cmd->done = ipr_scsi_eh_done;
707 else if (ipr_cmd->qc)
708 ipr_cmd->done = ipr_sata_eh_done;
710 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, IPR_IOASC_IOA_WAS_RESET);
711 del_timer(&ipr_cmd->timer);
712 ipr_cmd->done(ipr_cmd);
719 * ipr_do_req - Send driver initiated requests.
720 * @ipr_cmd: ipr command struct
721 * @done: done function
722 * @timeout_func: timeout function
723 * @timeout: timeout value
725 * This function sends the specified command to the adapter with the
726 * timeout given. The done function is invoked on command completion.
731 static void ipr_do_req(struct ipr_cmnd *ipr_cmd,
732 void (*done) (struct ipr_cmnd *),
733 void (*timeout_func) (struct ipr_cmnd *), u32 timeout)
735 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
737 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
739 ipr_cmd->done = done;
741 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
742 ipr_cmd->timer.expires = jiffies + timeout;
743 ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func;
745 add_timer(&ipr_cmd->timer);
747 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0);
750 writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr),
751 ioa_cfg->regs.ioarrin_reg);
755 * ipr_internal_cmd_done - Op done function for an internally generated op.
756 * @ipr_cmd: ipr command struct
758 * This function is the op done function for an internally generated,
759 * blocking op. It simply wakes the sleeping thread.
764 static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd)
766 if (ipr_cmd->sibling)
767 ipr_cmd->sibling = NULL;
769 complete(&ipr_cmd->completion);
773 * ipr_send_blocking_cmd - Send command and sleep on its completion.
774 * @ipr_cmd: ipr command struct
775 * @timeout_func: function to invoke if command times out
781 static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd,
782 void (*timeout_func) (struct ipr_cmnd *ipr_cmd),
785 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
787 init_completion(&ipr_cmd->completion);
788 ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout);
790 spin_unlock_irq(ioa_cfg->host->host_lock);
791 wait_for_completion(&ipr_cmd->completion);
792 spin_lock_irq(ioa_cfg->host->host_lock);
796 * ipr_send_hcam - Send an HCAM to the adapter.
797 * @ioa_cfg: ioa config struct
799 * @hostrcb: hostrcb struct
801 * This function will send a Host Controlled Async command to the adapter.
802 * If HCAMs are currently not allowed to be issued to the adapter, it will
803 * place the hostrcb on the free queue.
808 static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type,
809 struct ipr_hostrcb *hostrcb)
811 struct ipr_cmnd *ipr_cmd;
812 struct ipr_ioarcb *ioarcb;
814 if (ioa_cfg->allow_cmds) {
815 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
816 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
817 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q);
819 ipr_cmd->u.hostrcb = hostrcb;
820 ioarcb = &ipr_cmd->ioarcb;
822 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
823 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM;
824 ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC;
825 ioarcb->cmd_pkt.cdb[1] = type;
826 ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff;
827 ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff;
829 ioarcb->read_data_transfer_length = cpu_to_be32(sizeof(hostrcb->hcam));
830 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
831 ipr_cmd->ioadl[0].flags_and_data_len =
832 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | sizeof(hostrcb->hcam));
833 ipr_cmd->ioadl[0].address = cpu_to_be32(hostrcb->hostrcb_dma);
835 if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE)
836 ipr_cmd->done = ipr_process_ccn;
838 ipr_cmd->done = ipr_process_error;
840 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR);
843 writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr),
844 ioa_cfg->regs.ioarrin_reg);
846 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
851 * ipr_init_res_entry - Initialize a resource entry struct.
852 * @res: resource entry struct
857 static void ipr_init_res_entry(struct ipr_resource_entry *res)
859 res->needs_sync_complete = 0;
862 res->del_from_ml = 0;
863 res->resetting_device = 0;
865 res->sata_port = NULL;
869 * ipr_handle_config_change - Handle a config change from the adapter
870 * @ioa_cfg: ioa config struct
876 static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg,
877 struct ipr_hostrcb *hostrcb)
879 struct ipr_resource_entry *res = NULL;
880 struct ipr_config_table_entry *cfgte;
883 cfgte = &hostrcb->hcam.u.ccn.cfgte;
885 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
886 if (!memcmp(&res->cfgte.res_addr, &cfgte->res_addr,
887 sizeof(cfgte->res_addr))) {
894 if (list_empty(&ioa_cfg->free_res_q)) {
895 ipr_send_hcam(ioa_cfg,
896 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE,
901 res = list_entry(ioa_cfg->free_res_q.next,
902 struct ipr_resource_entry, queue);
904 list_del(&res->queue);
905 ipr_init_res_entry(res);
906 list_add_tail(&res->queue, &ioa_cfg->used_res_q);
909 memcpy(&res->cfgte, cfgte, sizeof(struct ipr_config_table_entry));
911 if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) {
913 res->del_from_ml = 1;
914 res->cfgte.res_handle = IPR_INVALID_RES_HANDLE;
915 if (ioa_cfg->allow_ml_add_del)
916 schedule_work(&ioa_cfg->work_q);
918 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
919 } else if (!res->sdev) {
921 if (ioa_cfg->allow_ml_add_del)
922 schedule_work(&ioa_cfg->work_q);
925 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
929 * ipr_process_ccn - Op done function for a CCN.
930 * @ipr_cmd: ipr command struct
932 * This function is the op done function for a configuration
933 * change notification host controlled async from the adapter.
938 static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd)
940 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
941 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
942 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
944 list_del(&hostrcb->queue);
945 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
948 if (ioasc != IPR_IOASC_IOA_WAS_RESET)
949 dev_err(&ioa_cfg->pdev->dev,
950 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
952 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
954 ipr_handle_config_change(ioa_cfg, hostrcb);
959 * strip_and_pad_whitespace - Strip and pad trailing whitespace.
960 * @i: index into buffer
961 * @buf: string to modify
963 * This function will strip all trailing whitespace, pad the end
964 * of the string with a single space, and NULL terminate the string.
967 * new length of string
969 static int strip_and_pad_whitespace(int i, char *buf)
971 while (i && buf[i] == ' ')
979 * ipr_log_vpd_compact - Log the passed extended VPD compactly.
980 * @prefix: string to print at start of printk
981 * @hostrcb: hostrcb pointer
982 * @vpd: vendor/product id/sn struct
987 static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
990 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3];
993 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
994 i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer);
996 memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN);
997 i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer);
999 memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN);
1000 buffer[IPR_SERIAL_NUM_LEN + i] = '\0';
1002 ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer);
1006 * ipr_log_vpd - Log the passed VPD to the error log.
1007 * @vpd: vendor/product id/sn struct
1012 static void ipr_log_vpd(struct ipr_vpd *vpd)
1014 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN
1015 + IPR_SERIAL_NUM_LEN];
1017 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1018 memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id,
1020 buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0';
1021 ipr_err("Vendor/Product ID: %s\n", buffer);
1023 memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN);
1024 buffer[IPR_SERIAL_NUM_LEN] = '\0';
1025 ipr_err(" Serial Number: %s\n", buffer);
1029 * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly.
1030 * @prefix: string to print at start of printk
1031 * @hostrcb: hostrcb pointer
1032 * @vpd: vendor/product id/sn/wwn struct
1037 static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1038 struct ipr_ext_vpd *vpd)
1040 ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd);
1041 ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix,
1042 be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1]));
1046 * ipr_log_ext_vpd - Log the passed extended VPD to the error log.
1047 * @vpd: vendor/product id/sn/wwn struct
1052 static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd)
1054 ipr_log_vpd(&vpd->vpd);
1055 ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]),
1056 be32_to_cpu(vpd->wwid[1]));
1060 * ipr_log_enhanced_cache_error - Log a cache error.
1061 * @ioa_cfg: ioa config struct
1062 * @hostrcb: hostrcb struct
1067 static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1068 struct ipr_hostrcb *hostrcb)
1070 struct ipr_hostrcb_type_12_error *error =
1071 &hostrcb->hcam.u.error.u.type_12_error;
1073 ipr_err("-----Current Configuration-----\n");
1074 ipr_err("Cache Directory Card Information:\n");
1075 ipr_log_ext_vpd(&error->ioa_vpd);
1076 ipr_err("Adapter Card Information:\n");
1077 ipr_log_ext_vpd(&error->cfc_vpd);
1079 ipr_err("-----Expected Configuration-----\n");
1080 ipr_err("Cache Directory Card Information:\n");
1081 ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd);
1082 ipr_err("Adapter Card Information:\n");
1083 ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd);
1085 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1086 be32_to_cpu(error->ioa_data[0]),
1087 be32_to_cpu(error->ioa_data[1]),
1088 be32_to_cpu(error->ioa_data[2]));
1092 * ipr_log_cache_error - Log a cache error.
1093 * @ioa_cfg: ioa config struct
1094 * @hostrcb: hostrcb struct
1099 static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1100 struct ipr_hostrcb *hostrcb)
1102 struct ipr_hostrcb_type_02_error *error =
1103 &hostrcb->hcam.u.error.u.type_02_error;
1105 ipr_err("-----Current Configuration-----\n");
1106 ipr_err("Cache Directory Card Information:\n");
1107 ipr_log_vpd(&error->ioa_vpd);
1108 ipr_err("Adapter Card Information:\n");
1109 ipr_log_vpd(&error->cfc_vpd);
1111 ipr_err("-----Expected Configuration-----\n");
1112 ipr_err("Cache Directory Card Information:\n");
1113 ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd);
1114 ipr_err("Adapter Card Information:\n");
1115 ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd);
1117 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1118 be32_to_cpu(error->ioa_data[0]),
1119 be32_to_cpu(error->ioa_data[1]),
1120 be32_to_cpu(error->ioa_data[2]));
1124 * ipr_log_enhanced_config_error - Log a configuration error.
1125 * @ioa_cfg: ioa config struct
1126 * @hostrcb: hostrcb struct
1131 static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg,
1132 struct ipr_hostrcb *hostrcb)
1134 int errors_logged, i;
1135 struct ipr_hostrcb_device_data_entry_enhanced *dev_entry;
1136 struct ipr_hostrcb_type_13_error *error;
1138 error = &hostrcb->hcam.u.error.u.type_13_error;
1139 errors_logged = be32_to_cpu(error->errors_logged);
1141 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1142 be32_to_cpu(error->errors_detected), errors_logged);
1144 dev_entry = error->dev;
1146 for (i = 0; i < errors_logged; i++, dev_entry++) {
1149 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1150 ipr_log_ext_vpd(&dev_entry->vpd);
1152 ipr_err("-----New Device Information-----\n");
1153 ipr_log_ext_vpd(&dev_entry->new_vpd);
1155 ipr_err("Cache Directory Card Information:\n");
1156 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1158 ipr_err("Adapter Card Information:\n");
1159 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1164 * ipr_log_config_error - Log a configuration error.
1165 * @ioa_cfg: ioa config struct
1166 * @hostrcb: hostrcb struct
1171 static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg,
1172 struct ipr_hostrcb *hostrcb)
1174 int errors_logged, i;
1175 struct ipr_hostrcb_device_data_entry *dev_entry;
1176 struct ipr_hostrcb_type_03_error *error;
1178 error = &hostrcb->hcam.u.error.u.type_03_error;
1179 errors_logged = be32_to_cpu(error->errors_logged);
1181 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1182 be32_to_cpu(error->errors_detected), errors_logged);
1184 dev_entry = error->dev;
1186 for (i = 0; i < errors_logged; i++, dev_entry++) {
1189 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1190 ipr_log_vpd(&dev_entry->vpd);
1192 ipr_err("-----New Device Information-----\n");
1193 ipr_log_vpd(&dev_entry->new_vpd);
1195 ipr_err("Cache Directory Card Information:\n");
1196 ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd);
1198 ipr_err("Adapter Card Information:\n");
1199 ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd);
1201 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n",
1202 be32_to_cpu(dev_entry->ioa_data[0]),
1203 be32_to_cpu(dev_entry->ioa_data[1]),
1204 be32_to_cpu(dev_entry->ioa_data[2]),
1205 be32_to_cpu(dev_entry->ioa_data[3]),
1206 be32_to_cpu(dev_entry->ioa_data[4]));
1211 * ipr_log_enhanced_array_error - Log an array configuration error.
1212 * @ioa_cfg: ioa config struct
1213 * @hostrcb: hostrcb struct
1218 static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg,
1219 struct ipr_hostrcb *hostrcb)
1222 struct ipr_hostrcb_type_14_error *error;
1223 struct ipr_hostrcb_array_data_entry_enhanced *array_entry;
1224 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1226 error = &hostrcb->hcam.u.error.u.type_14_error;
1230 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1231 error->protection_level,
1232 ioa_cfg->host->host_no,
1233 error->last_func_vset_res_addr.bus,
1234 error->last_func_vset_res_addr.target,
1235 error->last_func_vset_res_addr.lun);
1239 array_entry = error->array_member;
1240 num_entries = min_t(u32, be32_to_cpu(error->num_entries),
1241 sizeof(error->array_member));
1243 for (i = 0; i < num_entries; i++, array_entry++) {
1244 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1247 if (be32_to_cpu(error->exposed_mode_adn) == i)
1248 ipr_err("Exposed Array Member %d:\n", i);
1250 ipr_err("Array Member %d:\n", i);
1252 ipr_log_ext_vpd(&array_entry->vpd);
1253 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1254 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1255 "Expected Location");
1262 * ipr_log_array_error - Log an array configuration error.
1263 * @ioa_cfg: ioa config struct
1264 * @hostrcb: hostrcb struct
1269 static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg,
1270 struct ipr_hostrcb *hostrcb)
1273 struct ipr_hostrcb_type_04_error *error;
1274 struct ipr_hostrcb_array_data_entry *array_entry;
1275 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1277 error = &hostrcb->hcam.u.error.u.type_04_error;
1281 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1282 error->protection_level,
1283 ioa_cfg->host->host_no,
1284 error->last_func_vset_res_addr.bus,
1285 error->last_func_vset_res_addr.target,
1286 error->last_func_vset_res_addr.lun);
1290 array_entry = error->array_member;
1292 for (i = 0; i < 18; i++) {
1293 if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1296 if (be32_to_cpu(error->exposed_mode_adn) == i)
1297 ipr_err("Exposed Array Member %d:\n", i);
1299 ipr_err("Array Member %d:\n", i);
1301 ipr_log_vpd(&array_entry->vpd);
1303 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1304 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1305 "Expected Location");
1310 array_entry = error->array_member2;
1317 * ipr_log_hex_data - Log additional hex IOA error data.
1318 * @ioa_cfg: ioa config struct
1319 * @data: IOA error data
1325 static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, u32 *data, int len)
1332 if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
1333 len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP);
1335 for (i = 0; i < len / 4; i += 4) {
1336 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
1337 be32_to_cpu(data[i]),
1338 be32_to_cpu(data[i+1]),
1339 be32_to_cpu(data[i+2]),
1340 be32_to_cpu(data[i+3]));
1345 * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error.
1346 * @ioa_cfg: ioa config struct
1347 * @hostrcb: hostrcb struct
1352 static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1353 struct ipr_hostrcb *hostrcb)
1355 struct ipr_hostrcb_type_17_error *error;
1357 error = &hostrcb->hcam.u.error.u.type_17_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_ext_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_17_error, data)));
1371 * ipr_log_dual_ioa_error - Log a dual adapter error.
1372 * @ioa_cfg: ioa config struct
1373 * @hostrcb: hostrcb struct
1378 static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1379 struct ipr_hostrcb *hostrcb)
1381 struct ipr_hostrcb_type_07_error *error;
1383 error = &hostrcb->hcam.u.error.u.type_07_error;
1384 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
1385 strstrip(error->failure_reason);
1387 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1388 be32_to_cpu(hostrcb->hcam.u.error.prc));
1389 ipr_log_vpd_compact("Remote IOA", hostrcb, &error->vpd);
1390 ipr_log_hex_data(ioa_cfg, error->data,
1391 be32_to_cpu(hostrcb->hcam.length) -
1392 (offsetof(struct ipr_hostrcb_error, u) +
1393 offsetof(struct ipr_hostrcb_type_07_error, data)));
1396 static const struct {
1399 } path_active_desc[] = {
1400 { IPR_PATH_NO_INFO, "Path" },
1401 { IPR_PATH_ACTIVE, "Active path" },
1402 { IPR_PATH_NOT_ACTIVE, "Inactive path" }
1405 static const struct {
1408 } path_state_desc[] = {
1409 { IPR_PATH_STATE_NO_INFO, "has no path state information available" },
1410 { IPR_PATH_HEALTHY, "is healthy" },
1411 { IPR_PATH_DEGRADED, "is degraded" },
1412 { IPR_PATH_FAILED, "is failed" }
1416 * ipr_log_fabric_path - Log a fabric path error
1417 * @hostrcb: hostrcb struct
1418 * @fabric: fabric descriptor
1423 static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb,
1424 struct ipr_hostrcb_fabric_desc *fabric)
1427 u8 path_state = fabric->path_state;
1428 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
1429 u8 state = path_state & IPR_PATH_STATE_MASK;
1431 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
1432 if (path_active_desc[i].active != active)
1435 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
1436 if (path_state_desc[j].state != state)
1439 if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) {
1440 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n",
1441 path_active_desc[i].desc, path_state_desc[j].desc,
1443 } else if (fabric->cascaded_expander == 0xff) {
1444 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n",
1445 path_active_desc[i].desc, path_state_desc[j].desc,
1446 fabric->ioa_port, fabric->phy);
1447 } else if (fabric->phy == 0xff) {
1448 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n",
1449 path_active_desc[i].desc, path_state_desc[j].desc,
1450 fabric->ioa_port, fabric->cascaded_expander);
1452 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n",
1453 path_active_desc[i].desc, path_state_desc[j].desc,
1454 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
1460 ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state,
1461 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
1464 static const struct {
1467 } path_type_desc[] = {
1468 { IPR_PATH_CFG_IOA_PORT, "IOA port" },
1469 { IPR_PATH_CFG_EXP_PORT, "Expander port" },
1470 { IPR_PATH_CFG_DEVICE_PORT, "Device port" },
1471 { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" }
1474 static const struct {
1477 } path_status_desc[] = {
1478 { IPR_PATH_CFG_NO_PROB, "Functional" },
1479 { IPR_PATH_CFG_DEGRADED, "Degraded" },
1480 { IPR_PATH_CFG_FAILED, "Failed" },
1481 { IPR_PATH_CFG_SUSPECT, "Suspect" },
1482 { IPR_PATH_NOT_DETECTED, "Missing" },
1483 { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" }
1486 static const char *link_rate[] = {
1489 "phy reset problem",
1506 * ipr_log_path_elem - Log a fabric path element.
1507 * @hostrcb: hostrcb struct
1508 * @cfg: fabric path element struct
1513 static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb,
1514 struct ipr_hostrcb_config_element *cfg)
1517 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
1518 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
1520 if (type == IPR_PATH_CFG_NOT_EXIST)
1523 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
1524 if (path_type_desc[i].type != type)
1527 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
1528 if (path_status_desc[j].status != status)
1531 if (type == IPR_PATH_CFG_IOA_PORT) {
1532 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n",
1533 path_status_desc[j].desc, path_type_desc[i].desc,
1534 cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
1535 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
1537 if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) {
1538 ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n",
1539 path_status_desc[j].desc, path_type_desc[i].desc,
1540 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
1541 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
1542 } else if (cfg->cascaded_expander == 0xff) {
1543 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, "
1544 "WWN=%08X%08X\n", path_status_desc[j].desc,
1545 path_type_desc[i].desc, cfg->phy,
1546 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
1547 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
1548 } else if (cfg->phy == 0xff) {
1549 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, "
1550 "WWN=%08X%08X\n", path_status_desc[j].desc,
1551 path_type_desc[i].desc, cfg->cascaded_expander,
1552 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
1553 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
1555 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s "
1556 "WWN=%08X%08X\n", path_status_desc[j].desc,
1557 path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy,
1558 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
1559 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
1566 ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s "
1567 "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy,
1568 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
1569 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
1573 * ipr_log_fabric_error - Log a fabric error.
1574 * @ioa_cfg: ioa config struct
1575 * @hostrcb: hostrcb struct
1580 static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
1581 struct ipr_hostrcb *hostrcb)
1583 struct ipr_hostrcb_type_20_error *error;
1584 struct ipr_hostrcb_fabric_desc *fabric;
1585 struct ipr_hostrcb_config_element *cfg;
1588 error = &hostrcb->hcam.u.error.u.type_20_error;
1589 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
1590 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
1592 add_len = be32_to_cpu(hostrcb->hcam.length) -
1593 (offsetof(struct ipr_hostrcb_error, u) +
1594 offsetof(struct ipr_hostrcb_type_20_error, desc));
1596 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
1597 ipr_log_fabric_path(hostrcb, fabric);
1598 for_each_fabric_cfg(fabric, cfg)
1599 ipr_log_path_elem(hostrcb, cfg);
1601 add_len -= be16_to_cpu(fabric->length);
1602 fabric = (struct ipr_hostrcb_fabric_desc *)
1603 ((unsigned long)fabric + be16_to_cpu(fabric->length));
1606 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len);
1610 * ipr_log_generic_error - Log an adapter error.
1611 * @ioa_cfg: ioa config struct
1612 * @hostrcb: hostrcb struct
1617 static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg,
1618 struct ipr_hostrcb *hostrcb)
1620 ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data,
1621 be32_to_cpu(hostrcb->hcam.length));
1625 * ipr_get_error - Find the specfied IOASC in the ipr_error_table.
1628 * This function will return the index of into the ipr_error_table
1629 * for the specified IOASC. If the IOASC is not in the table,
1630 * 0 will be returned, which points to the entry used for unknown errors.
1633 * index into the ipr_error_table
1635 static u32 ipr_get_error(u32 ioasc)
1639 for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++)
1640 if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK))
1647 * ipr_handle_log_data - Log an adapter error.
1648 * @ioa_cfg: ioa config struct
1649 * @hostrcb: hostrcb struct
1651 * This function logs an adapter error to the system.
1656 static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg,
1657 struct ipr_hostrcb *hostrcb)
1662 if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY)
1665 if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST)
1666 dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n");
1668 ioasc = be32_to_cpu(hostrcb->hcam.u.error.failing_dev_ioasc);
1670 if (ioasc == IPR_IOASC_BUS_WAS_RESET ||
1671 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER) {
1672 /* Tell the midlayer we had a bus reset so it will handle the UA properly */
1673 scsi_report_bus_reset(ioa_cfg->host,
1674 hostrcb->hcam.u.error.failing_dev_res_addr.bus);
1677 error_index = ipr_get_error(ioasc);
1679 if (!ipr_error_table[error_index].log_hcam)
1682 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error);
1684 /* Set indication we have logged an error */
1685 ioa_cfg->errors_logged++;
1687 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam)
1689 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw))
1690 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw));
1692 switch (hostrcb->hcam.overlay_id) {
1693 case IPR_HOST_RCB_OVERLAY_ID_2:
1694 ipr_log_cache_error(ioa_cfg, hostrcb);
1696 case IPR_HOST_RCB_OVERLAY_ID_3:
1697 ipr_log_config_error(ioa_cfg, hostrcb);
1699 case IPR_HOST_RCB_OVERLAY_ID_4:
1700 case IPR_HOST_RCB_OVERLAY_ID_6:
1701 ipr_log_array_error(ioa_cfg, hostrcb);
1703 case IPR_HOST_RCB_OVERLAY_ID_7:
1704 ipr_log_dual_ioa_error(ioa_cfg, hostrcb);
1706 case IPR_HOST_RCB_OVERLAY_ID_12:
1707 ipr_log_enhanced_cache_error(ioa_cfg, hostrcb);
1709 case IPR_HOST_RCB_OVERLAY_ID_13:
1710 ipr_log_enhanced_config_error(ioa_cfg, hostrcb);
1712 case IPR_HOST_RCB_OVERLAY_ID_14:
1713 case IPR_HOST_RCB_OVERLAY_ID_16:
1714 ipr_log_enhanced_array_error(ioa_cfg, hostrcb);
1716 case IPR_HOST_RCB_OVERLAY_ID_17:
1717 ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb);
1719 case IPR_HOST_RCB_OVERLAY_ID_20:
1720 ipr_log_fabric_error(ioa_cfg, hostrcb);
1722 case IPR_HOST_RCB_OVERLAY_ID_1:
1723 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT:
1725 ipr_log_generic_error(ioa_cfg, hostrcb);
1731 * ipr_process_error - Op done function for an adapter error log.
1732 * @ipr_cmd: ipr command struct
1734 * This function is the op done function for an error log host
1735 * controlled async from the adapter. It will log the error and
1736 * send the HCAM back to the adapter.
1741 static void ipr_process_error(struct ipr_cmnd *ipr_cmd)
1743 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1744 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
1745 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
1746 u32 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.failing_dev_ioasc);
1748 list_del(&hostrcb->queue);
1749 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
1752 ipr_handle_log_data(ioa_cfg, hostrcb);
1753 if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED)
1754 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
1755 } else if (ioasc != IPR_IOASC_IOA_WAS_RESET) {
1756 dev_err(&ioa_cfg->pdev->dev,
1757 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
1760 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
1764 * ipr_timeout - An internally generated op has timed out.
1765 * @ipr_cmd: ipr command struct
1767 * This function blocks host requests and initiates an
1773 static void ipr_timeout(struct ipr_cmnd *ipr_cmd)
1775 unsigned long lock_flags = 0;
1776 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1779 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
1781 ioa_cfg->errors_logged++;
1782 dev_err(&ioa_cfg->pdev->dev,
1783 "Adapter being reset due to command timeout.\n");
1785 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
1786 ioa_cfg->sdt_state = GET_DUMP;
1788 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd)
1789 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
1791 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1796 * ipr_oper_timeout - Adapter timed out transitioning to operational
1797 * @ipr_cmd: ipr command struct
1799 * This function blocks host requests and initiates an
1805 static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd)
1807 unsigned long lock_flags = 0;
1808 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1811 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
1813 ioa_cfg->errors_logged++;
1814 dev_err(&ioa_cfg->pdev->dev,
1815 "Adapter timed out transitioning to operational.\n");
1817 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
1818 ioa_cfg->sdt_state = GET_DUMP;
1820 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) {
1822 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
1823 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
1826 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1831 * ipr_reset_reload - Reset/Reload the IOA
1832 * @ioa_cfg: ioa config struct
1833 * @shutdown_type: shutdown type
1835 * This function resets the adapter and re-initializes it.
1836 * This function assumes that all new host commands have been stopped.
1840 static int ipr_reset_reload(struct ipr_ioa_cfg *ioa_cfg,
1841 enum ipr_shutdown_type shutdown_type)
1843 if (!ioa_cfg->in_reset_reload)
1844 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
1846 spin_unlock_irq(ioa_cfg->host->host_lock);
1847 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
1848 spin_lock_irq(ioa_cfg->host->host_lock);
1850 /* If we got hit with a host reset while we were already resetting
1851 the adapter for some reason, and the reset failed. */
1852 if (ioa_cfg->ioa_is_dead) {
1861 * ipr_find_ses_entry - Find matching SES in SES table
1862 * @res: resource entry struct of SES
1865 * pointer to SES table entry / NULL on failure
1867 static const struct ipr_ses_table_entry *
1868 ipr_find_ses_entry(struct ipr_resource_entry *res)
1871 const struct ipr_ses_table_entry *ste = ipr_ses_table;
1873 for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) {
1874 for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) {
1875 if (ste->compare_product_id_byte[j] == 'X') {
1876 if (res->cfgte.std_inq_data.vpids.product_id[j] == ste->product_id[j])
1884 if (matches == IPR_PROD_ID_LEN)
1892 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus
1893 * @ioa_cfg: ioa config struct
1895 * @bus_width: bus width
1898 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz
1899 * For a 2-byte wide SCSI bus, the maximum transfer speed is
1900 * twice the maximum transfer rate (e.g. for a wide enabled bus,
1901 * max 160MHz = max 320MB/sec).
1903 static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width)
1905 struct ipr_resource_entry *res;
1906 const struct ipr_ses_table_entry *ste;
1907 u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width);
1909 /* Loop through each config table entry in the config table buffer */
1910 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
1911 if (!(IPR_IS_SES_DEVICE(res->cfgte.std_inq_data)))
1914 if (bus != res->cfgte.res_addr.bus)
1917 if (!(ste = ipr_find_ses_entry(res)))
1920 max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8);
1923 return max_xfer_rate;
1927 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA
1928 * @ioa_cfg: ioa config struct
1929 * @max_delay: max delay in micro-seconds to wait
1931 * Waits for an IODEBUG ACK from the IOA, doing busy looping.
1934 * 0 on success / other on failure
1936 static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay)
1938 volatile u32 pcii_reg;
1941 /* Read interrupt reg until IOA signals IO Debug Acknowledge */
1942 while (delay < max_delay) {
1943 pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
1945 if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE)
1948 /* udelay cannot be used if delay is more than a few milliseconds */
1949 if ((delay / 1000) > MAX_UDELAY_MS)
1950 mdelay(delay / 1000);
1960 * ipr_get_ldump_data_section - Dump IOA memory
1961 * @ioa_cfg: ioa config struct
1962 * @start_addr: adapter address to dump
1963 * @dest: destination kernel buffer
1964 * @length_in_words: length to dump in 4 byte words
1967 * 0 on success / -EIO on failure
1969 static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg,
1971 __be32 *dest, u32 length_in_words)
1973 volatile u32 temp_pcii_reg;
1976 /* Write IOA interrupt reg starting LDUMP state */
1977 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT),
1978 ioa_cfg->regs.set_uproc_interrupt_reg);
1980 /* Wait for IO debug acknowledge */
1981 if (ipr_wait_iodbg_ack(ioa_cfg,
1982 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) {
1983 dev_err(&ioa_cfg->pdev->dev,
1984 "IOA dump long data transfer timeout\n");
1988 /* Signal LDUMP interlocked - clear IO debug ack */
1989 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
1990 ioa_cfg->regs.clr_interrupt_reg);
1992 /* Write Mailbox with starting address */
1993 writel(start_addr, ioa_cfg->ioa_mailbox);
1995 /* Signal address valid - clear IOA Reset alert */
1996 writel(IPR_UPROCI_RESET_ALERT,
1997 ioa_cfg->regs.clr_uproc_interrupt_reg);
1999 for (i = 0; i < length_in_words; i++) {
2000 /* Wait for IO debug acknowledge */
2001 if (ipr_wait_iodbg_ack(ioa_cfg,
2002 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) {
2003 dev_err(&ioa_cfg->pdev->dev,
2004 "IOA dump short data transfer timeout\n");
2008 /* Read data from mailbox and increment destination pointer */
2009 *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox));
2012 /* For all but the last word of data, signal data received */
2013 if (i < (length_in_words - 1)) {
2014 /* Signal dump data received - Clear IO debug Ack */
2015 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2016 ioa_cfg->regs.clr_interrupt_reg);
2020 /* Signal end of block transfer. Set reset alert then clear IO debug ack */
2021 writel(IPR_UPROCI_RESET_ALERT,
2022 ioa_cfg->regs.set_uproc_interrupt_reg);
2024 writel(IPR_UPROCI_IO_DEBUG_ALERT,
2025 ioa_cfg->regs.clr_uproc_interrupt_reg);
2027 /* Signal dump data received - Clear IO debug Ack */
2028 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2029 ioa_cfg->regs.clr_interrupt_reg);
2031 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */
2032 while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) {
2034 readl(ioa_cfg->regs.sense_uproc_interrupt_reg);
2036 if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT))
2046 #ifdef CONFIG_SCSI_IPR_DUMP
2048 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer
2049 * @ioa_cfg: ioa config struct
2050 * @pci_address: adapter address
2051 * @length: length of data to copy
2053 * Copy data from PCI adapter to kernel buffer.
2054 * Note: length MUST be a 4 byte multiple
2056 * 0 on success / other on failure
2058 static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg,
2059 unsigned long pci_address, u32 length)
2061 int bytes_copied = 0;
2062 int cur_len, rc, rem_len, rem_page_len;
2064 unsigned long lock_flags = 0;
2065 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump;
2067 while (bytes_copied < length &&
2068 (ioa_dump->hdr.len + bytes_copied) < IPR_MAX_IOA_DUMP_SIZE) {
2069 if (ioa_dump->page_offset >= PAGE_SIZE ||
2070 ioa_dump->page_offset == 0) {
2071 page = (__be32 *)__get_free_page(GFP_ATOMIC);
2075 return bytes_copied;
2078 ioa_dump->page_offset = 0;
2079 ioa_dump->ioa_data[ioa_dump->next_page_index] = page;
2080 ioa_dump->next_page_index++;
2082 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1];
2084 rem_len = length - bytes_copied;
2085 rem_page_len = PAGE_SIZE - ioa_dump->page_offset;
2086 cur_len = min(rem_len, rem_page_len);
2088 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2089 if (ioa_cfg->sdt_state == ABORT_DUMP) {
2092 rc = ipr_get_ldump_data_section(ioa_cfg,
2093 pci_address + bytes_copied,
2094 &page[ioa_dump->page_offset / 4],
2095 (cur_len / sizeof(u32)));
2097 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2100 ioa_dump->page_offset += cur_len;
2101 bytes_copied += cur_len;
2109 return bytes_copied;
2113 * ipr_init_dump_entry_hdr - Initialize a dump entry header.
2114 * @hdr: dump entry header struct
2119 static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr)
2121 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER;
2123 hdr->offset = sizeof(*hdr);
2124 hdr->status = IPR_DUMP_STATUS_SUCCESS;
2128 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump.
2129 * @ioa_cfg: ioa config struct
2130 * @driver_dump: driver dump struct
2135 static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg,
2136 struct ipr_driver_dump *driver_dump)
2138 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
2140 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr);
2141 driver_dump->ioa_type_entry.hdr.len =
2142 sizeof(struct ipr_dump_ioa_type_entry) -
2143 sizeof(struct ipr_dump_entry_header);
2144 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2145 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID;
2146 driver_dump->ioa_type_entry.type = ioa_cfg->type;
2147 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) |
2148 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) |
2149 ucode_vpd->minor_release[1];
2150 driver_dump->hdr.num_entries++;
2154 * ipr_dump_version_data - Fill in the driver version in the dump.
2155 * @ioa_cfg: ioa config struct
2156 * @driver_dump: driver dump struct
2161 static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg,
2162 struct ipr_driver_dump *driver_dump)
2164 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr);
2165 driver_dump->version_entry.hdr.len =
2166 sizeof(struct ipr_dump_version_entry) -
2167 sizeof(struct ipr_dump_entry_header);
2168 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
2169 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID;
2170 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION);
2171 driver_dump->hdr.num_entries++;
2175 * ipr_dump_trace_data - Fill in the IOA trace in the dump.
2176 * @ioa_cfg: ioa config struct
2177 * @driver_dump: driver dump struct
2182 static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg,
2183 struct ipr_driver_dump *driver_dump)
2185 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr);
2186 driver_dump->trace_entry.hdr.len =
2187 sizeof(struct ipr_dump_trace_entry) -
2188 sizeof(struct ipr_dump_entry_header);
2189 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2190 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID;
2191 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE);
2192 driver_dump->hdr.num_entries++;
2196 * ipr_dump_location_data - Fill in the IOA location in the dump.
2197 * @ioa_cfg: ioa config struct
2198 * @driver_dump: driver dump struct
2203 static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg,
2204 struct ipr_driver_dump *driver_dump)
2206 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr);
2207 driver_dump->location_entry.hdr.len =
2208 sizeof(struct ipr_dump_location_entry) -
2209 sizeof(struct ipr_dump_entry_header);
2210 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
2211 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID;
2212 strcpy(driver_dump->location_entry.location, ioa_cfg->pdev->dev.bus_id);
2213 driver_dump->hdr.num_entries++;
2217 * ipr_get_ioa_dump - Perform a dump of the driver and adapter.
2218 * @ioa_cfg: ioa config struct
2219 * @dump: dump struct
2224 static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump)
2226 unsigned long start_addr, sdt_word;
2227 unsigned long lock_flags = 0;
2228 struct ipr_driver_dump *driver_dump = &dump->driver_dump;
2229 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump;
2230 u32 num_entries, start_off, end_off;
2231 u32 bytes_to_copy, bytes_copied, rc;
2232 struct ipr_sdt *sdt;
2237 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2239 if (ioa_cfg->sdt_state != GET_DUMP) {
2240 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2244 start_addr = readl(ioa_cfg->ioa_mailbox);
2246 if (!ipr_sdt_is_fmt2(start_addr)) {
2247 dev_err(&ioa_cfg->pdev->dev,
2248 "Invalid dump table format: %lx\n", start_addr);
2249 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2253 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n");
2255 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER;
2257 /* Initialize the overall dump header */
2258 driver_dump->hdr.len = sizeof(struct ipr_driver_dump);
2259 driver_dump->hdr.num_entries = 1;
2260 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header);
2261 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS;
2262 driver_dump->hdr.os = IPR_DUMP_OS_LINUX;
2263 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME;
2265 ipr_dump_version_data(ioa_cfg, driver_dump);
2266 ipr_dump_location_data(ioa_cfg, driver_dump);
2267 ipr_dump_ioa_type_data(ioa_cfg, driver_dump);
2268 ipr_dump_trace_data(ioa_cfg, driver_dump);
2270 /* Update dump_header */
2271 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header);
2273 /* IOA Dump entry */
2274 ipr_init_dump_entry_hdr(&ioa_dump->hdr);
2275 ioa_dump->format = IPR_SDT_FMT2;
2276 ioa_dump->hdr.len = 0;
2277 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2278 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID;
2280 /* First entries in sdt are actually a list of dump addresses and
2281 lengths to gather the real dump data. sdt represents the pointer
2282 to the ioa generated dump table. Dump data will be extracted based
2283 on entries in this table */
2284 sdt = &ioa_dump->sdt;
2286 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt,
2287 sizeof(struct ipr_sdt) / sizeof(__be32));
2289 /* Smart Dump table is ready to use and the first entry is valid */
2290 if (rc || (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE)) {
2291 dev_err(&ioa_cfg->pdev->dev,
2292 "Dump of IOA failed. Dump table not valid: %d, %X.\n",
2293 rc, be32_to_cpu(sdt->hdr.state));
2294 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED;
2295 ioa_cfg->sdt_state = DUMP_OBTAINED;
2296 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2300 num_entries = be32_to_cpu(sdt->hdr.num_entries_used);
2302 if (num_entries > IPR_NUM_SDT_ENTRIES)
2303 num_entries = IPR_NUM_SDT_ENTRIES;
2305 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2307 for (i = 0; i < num_entries; i++) {
2308 if (ioa_dump->hdr.len > IPR_MAX_IOA_DUMP_SIZE) {
2309 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
2313 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) {
2314 sdt_word = be32_to_cpu(sdt->entry[i].bar_str_offset);
2315 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK;
2316 end_off = be32_to_cpu(sdt->entry[i].end_offset);
2318 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word) {
2319 bytes_to_copy = end_off - start_off;
2320 if (bytes_to_copy > IPR_MAX_IOA_DUMP_SIZE) {
2321 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY;
2325 /* Copy data from adapter to driver buffers */
2326 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word,
2329 ioa_dump->hdr.len += bytes_copied;
2331 if (bytes_copied != bytes_to_copy) {
2332 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
2339 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n");
2341 /* Update dump_header */
2342 driver_dump->hdr.len += ioa_dump->hdr.len;
2344 ioa_cfg->sdt_state = DUMP_OBTAINED;
2349 #define ipr_get_ioa_dump(ioa_cfg, dump) do { } while(0)
2353 * ipr_release_dump - Free adapter dump memory
2354 * @kref: kref struct
2359 static void ipr_release_dump(struct kref *kref)
2361 struct ipr_dump *dump = container_of(kref,struct ipr_dump,kref);
2362 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg;
2363 unsigned long lock_flags = 0;
2367 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2368 ioa_cfg->dump = NULL;
2369 ioa_cfg->sdt_state = INACTIVE;
2370 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2372 for (i = 0; i < dump->ioa_dump.next_page_index; i++)
2373 free_page((unsigned long) dump->ioa_dump.ioa_data[i]);
2380 * ipr_worker_thread - Worker thread
2381 * @work: ioa config struct
2383 * Called at task level from a work thread. This function takes care
2384 * of adding and removing device from the mid-layer as configuration
2385 * changes are detected by the adapter.
2390 static void ipr_worker_thread(struct work_struct *work)
2392 unsigned long lock_flags;
2393 struct ipr_resource_entry *res;
2394 struct scsi_device *sdev;
2395 struct ipr_dump *dump;
2396 struct ipr_ioa_cfg *ioa_cfg =
2397 container_of(work, struct ipr_ioa_cfg, work_q);
2398 u8 bus, target, lun;
2402 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2404 if (ioa_cfg->sdt_state == GET_DUMP) {
2405 dump = ioa_cfg->dump;
2407 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2410 kref_get(&dump->kref);
2411 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2412 ipr_get_ioa_dump(ioa_cfg, dump);
2413 kref_put(&dump->kref, ipr_release_dump);
2415 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2416 if (ioa_cfg->sdt_state == DUMP_OBTAINED)
2417 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2418 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2425 if (!ioa_cfg->allow_cmds || !ioa_cfg->allow_ml_add_del) {
2426 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2430 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
2431 if (res->del_from_ml && res->sdev) {
2434 if (!scsi_device_get(sdev)) {
2435 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
2436 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2437 scsi_remove_device(sdev);
2438 scsi_device_put(sdev);
2439 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2446 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
2447 if (res->add_to_ml) {
2448 bus = res->cfgte.res_addr.bus;
2449 target = res->cfgte.res_addr.target;
2450 lun = res->cfgte.res_addr.lun;
2452 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2453 scsi_add_device(ioa_cfg->host, bus, target, lun);
2454 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2459 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2460 kobject_uevent(&ioa_cfg->host->shost_classdev.kobj, KOBJ_CHANGE);
2464 #ifdef CONFIG_SCSI_IPR_TRACE
2466 * ipr_read_trace - Dump the adapter trace
2467 * @kobj: kobject struct
2470 * @count: buffer size
2473 * number of bytes printed to buffer
2475 static ssize_t ipr_read_trace(struct kobject *kobj, char *buf,
2476 loff_t off, size_t count)
2478 struct class_device *cdev = container_of(kobj,struct class_device,kobj);
2479 struct Scsi_Host *shost = class_to_shost(cdev);
2480 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2481 unsigned long lock_flags = 0;
2482 int size = IPR_TRACE_SIZE;
2483 char *src = (char *)ioa_cfg->trace;
2487 if (off + count > size) {
2492 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2493 memcpy(buf, &src[off], count);
2494 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2498 static struct bin_attribute ipr_trace_attr = {
2504 .read = ipr_read_trace,
2508 static const struct {
2509 enum ipr_cache_state state;
2511 } cache_state [] = {
2512 { CACHE_NONE, "none" },
2513 { CACHE_DISABLED, "disabled" },
2514 { CACHE_ENABLED, "enabled" }
2518 * ipr_show_write_caching - Show the write caching attribute
2519 * @class_dev: class device struct
2523 * number of bytes printed to buffer
2525 static ssize_t ipr_show_write_caching(struct class_device *class_dev, char *buf)
2527 struct Scsi_Host *shost = class_to_shost(class_dev);
2528 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2529 unsigned long lock_flags = 0;
2532 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2533 for (i = 0; i < ARRAY_SIZE(cache_state); i++) {
2534 if (cache_state[i].state == ioa_cfg->cache_state) {
2535 len = snprintf(buf, PAGE_SIZE, "%s\n", cache_state[i].name);
2539 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2545 * ipr_store_write_caching - Enable/disable adapter write cache
2546 * @class_dev: class_device struct
2548 * @count: buffer size
2550 * This function will enable/disable adapter write cache.
2553 * count on success / other on failure
2555 static ssize_t ipr_store_write_caching(struct class_device *class_dev,
2556 const char *buf, size_t count)
2558 struct Scsi_Host *shost = class_to_shost(class_dev);
2559 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2560 unsigned long lock_flags = 0;
2561 enum ipr_cache_state new_state = CACHE_INVALID;
2564 if (!capable(CAP_SYS_ADMIN))
2566 if (ioa_cfg->cache_state == CACHE_NONE)
2569 for (i = 0; i < ARRAY_SIZE(cache_state); i++) {
2570 if (!strncmp(cache_state[i].name, buf, strlen(cache_state[i].name))) {
2571 new_state = cache_state[i].state;
2576 if (new_state != CACHE_DISABLED && new_state != CACHE_ENABLED)
2579 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2580 if (ioa_cfg->cache_state == new_state) {
2581 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2585 ioa_cfg->cache_state = new_state;
2586 dev_info(&ioa_cfg->pdev->dev, "%s adapter write cache.\n",
2587 new_state == CACHE_ENABLED ? "Enabling" : "Disabling");
2588 if (!ioa_cfg->in_reset_reload)
2589 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
2590 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2591 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2596 static struct class_device_attribute ipr_ioa_cache_attr = {
2598 .name = "write_cache",
2599 .mode = S_IRUGO | S_IWUSR,
2601 .show = ipr_show_write_caching,
2602 .store = ipr_store_write_caching
2606 * ipr_show_fw_version - Show the firmware version
2607 * @class_dev: class device struct
2611 * number of bytes printed to buffer
2613 static ssize_t ipr_show_fw_version(struct class_device *class_dev, char *buf)
2615 struct Scsi_Host *shost = class_to_shost(class_dev);
2616 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2617 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
2618 unsigned long lock_flags = 0;
2621 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2622 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n",
2623 ucode_vpd->major_release, ucode_vpd->card_type,
2624 ucode_vpd->minor_release[0],
2625 ucode_vpd->minor_release[1]);
2626 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2630 static struct class_device_attribute ipr_fw_version_attr = {
2632 .name = "fw_version",
2635 .show = ipr_show_fw_version,
2639 * ipr_show_log_level - Show the adapter's error logging level
2640 * @class_dev: class device struct
2644 * number of bytes printed to buffer
2646 static ssize_t ipr_show_log_level(struct class_device *class_dev, char *buf)
2648 struct Scsi_Host *shost = class_to_shost(class_dev);
2649 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2650 unsigned long lock_flags = 0;
2653 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2654 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level);
2655 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2660 * ipr_store_log_level - Change the adapter's error logging level
2661 * @class_dev: class device struct
2665 * number of bytes printed to buffer
2667 static ssize_t ipr_store_log_level(struct class_device *class_dev,
2668 const char *buf, size_t count)
2670 struct Scsi_Host *shost = class_to_shost(class_dev);
2671 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2672 unsigned long lock_flags = 0;
2674 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2675 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10);
2676 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2680 static struct class_device_attribute ipr_log_level_attr = {
2682 .name = "log_level",
2683 .mode = S_IRUGO | S_IWUSR,
2685 .show = ipr_show_log_level,
2686 .store = ipr_store_log_level
2690 * ipr_store_diagnostics - IOA Diagnostics interface
2691 * @class_dev: class_device struct
2693 * @count: buffer size
2695 * This function will reset the adapter and wait a reasonable
2696 * amount of time for any errors that the adapter might log.
2699 * count on success / other on failure
2701 static ssize_t ipr_store_diagnostics(struct class_device *class_dev,
2702 const char *buf, size_t count)
2704 struct Scsi_Host *shost = class_to_shost(class_dev);
2705 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2706 unsigned long lock_flags = 0;
2709 if (!capable(CAP_SYS_ADMIN))
2712 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2713 while(ioa_cfg->in_reset_reload) {
2714 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2715 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2716 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2719 ioa_cfg->errors_logged = 0;
2720 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
2722 if (ioa_cfg->in_reset_reload) {
2723 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2724 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2726 /* Wait for a second for any errors to be logged */
2729 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2733 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2734 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged)
2736 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2741 static struct class_device_attribute ipr_diagnostics_attr = {
2743 .name = "run_diagnostics",
2746 .store = ipr_store_diagnostics
2750 * ipr_show_adapter_state - Show the adapter's state
2751 * @class_dev: class device struct
2755 * number of bytes printed to buffer
2757 static ssize_t ipr_show_adapter_state(struct class_device *class_dev, char *buf)
2759 struct Scsi_Host *shost = class_to_shost(class_dev);
2760 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2761 unsigned long lock_flags = 0;
2764 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2765 if (ioa_cfg->ioa_is_dead)
2766 len = snprintf(buf, PAGE_SIZE, "offline\n");
2768 len = snprintf(buf, PAGE_SIZE, "online\n");
2769 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2774 * ipr_store_adapter_state - Change adapter state
2775 * @class_dev: class_device struct
2777 * @count: buffer size
2779 * This function will change the adapter's state.
2782 * count on success / other on failure
2784 static ssize_t ipr_store_adapter_state(struct class_device *class_dev,
2785 const char *buf, size_t count)
2787 struct Scsi_Host *shost = class_to_shost(class_dev);
2788 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2789 unsigned long lock_flags;
2792 if (!capable(CAP_SYS_ADMIN))
2795 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2796 if (ioa_cfg->ioa_is_dead && !strncmp(buf, "online", 6)) {
2797 ioa_cfg->ioa_is_dead = 0;
2798 ioa_cfg->reset_retries = 0;
2799 ioa_cfg->in_ioa_bringdown = 0;
2800 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2802 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2803 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2808 static struct class_device_attribute ipr_ioa_state_attr = {
2811 .mode = S_IRUGO | S_IWUSR,
2813 .show = ipr_show_adapter_state,
2814 .store = ipr_store_adapter_state
2818 * ipr_store_reset_adapter - Reset the adapter
2819 * @class_dev: class_device struct
2821 * @count: buffer size
2823 * This function will reset the adapter.
2826 * count on success / other on failure
2828 static ssize_t ipr_store_reset_adapter(struct class_device *class_dev,
2829 const char *buf, size_t count)
2831 struct Scsi_Host *shost = class_to_shost(class_dev);
2832 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2833 unsigned long lock_flags;
2836 if (!capable(CAP_SYS_ADMIN))
2839 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2840 if (!ioa_cfg->in_reset_reload)
2841 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
2842 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2843 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2848 static struct class_device_attribute ipr_ioa_reset_attr = {
2850 .name = "reset_host",
2853 .store = ipr_store_reset_adapter
2857 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer
2858 * @buf_len: buffer length
2860 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather
2861 * list to use for microcode download
2864 * pointer to sglist / NULL on failure
2866 static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
2868 int sg_size, order, bsize_elem, num_elem, i, j;
2869 struct ipr_sglist *sglist;
2870 struct scatterlist *scatterlist;
2873 /* Get the minimum size per scatter/gather element */
2874 sg_size = buf_len / (IPR_MAX_SGLIST - 1);
2876 /* Get the actual size per element */
2877 order = get_order(sg_size);
2879 /* Determine the actual number of bytes per element */
2880 bsize_elem = PAGE_SIZE * (1 << order);
2882 /* Determine the actual number of sg entries needed */
2883 if (buf_len % bsize_elem)
2884 num_elem = (buf_len / bsize_elem) + 1;
2886 num_elem = buf_len / bsize_elem;
2888 /* Allocate a scatter/gather list for the DMA */
2889 sglist = kzalloc(sizeof(struct ipr_sglist) +
2890 (sizeof(struct scatterlist) * (num_elem - 1)),
2893 if (sglist == NULL) {
2898 scatterlist = sglist->scatterlist;
2900 sglist->order = order;
2901 sglist->num_sg = num_elem;
2903 /* Allocate a bunch of sg elements */
2904 for (i = 0; i < num_elem; i++) {
2905 page = alloc_pages(GFP_KERNEL, order);
2909 /* Free up what we already allocated */
2910 for (j = i - 1; j >= 0; j--)
2911 __free_pages(scatterlist[j].page, order);
2916 scatterlist[i].page = page;
2923 * ipr_free_ucode_buffer - Frees a microcode download buffer
2924 * @p_dnld: scatter/gather list pointer
2926 * Free a DMA'able ucode download buffer previously allocated with
2927 * ipr_alloc_ucode_buffer
2932 static void ipr_free_ucode_buffer(struct ipr_sglist *sglist)
2936 for (i = 0; i < sglist->num_sg; i++)
2937 __free_pages(sglist->scatterlist[i].page, sglist->order);
2943 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer
2944 * @sglist: scatter/gather list pointer
2945 * @buffer: buffer pointer
2946 * @len: buffer length
2948 * Copy a microcode image from a user buffer into a buffer allocated by
2949 * ipr_alloc_ucode_buffer
2952 * 0 on success / other on failure
2954 static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
2955 u8 *buffer, u32 len)
2957 int bsize_elem, i, result = 0;
2958 struct scatterlist *scatterlist;
2961 /* Determine the actual number of bytes per element */
2962 bsize_elem = PAGE_SIZE * (1 << sglist->order);
2964 scatterlist = sglist->scatterlist;
2966 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) {
2967 kaddr = kmap(scatterlist[i].page);
2968 memcpy(kaddr, buffer, bsize_elem);
2969 kunmap(scatterlist[i].page);
2971 scatterlist[i].length = bsize_elem;
2979 if (len % bsize_elem) {
2980 kaddr = kmap(scatterlist[i].page);
2981 memcpy(kaddr, buffer, len % bsize_elem);
2982 kunmap(scatterlist[i].page);
2984 scatterlist[i].length = len % bsize_elem;
2987 sglist->buffer_len = len;
2992 * ipr_build_ucode_ioadl - Build a microcode download IOADL
2993 * @ipr_cmd: ipr command struct
2994 * @sglist: scatter/gather list
2996 * Builds a microcode download IOA data list (IOADL).
2999 static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd,
3000 struct ipr_sglist *sglist)
3002 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3003 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
3004 struct scatterlist *scatterlist = sglist->scatterlist;
3007 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
3008 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
3009 ioarcb->write_data_transfer_length = cpu_to_be32(sglist->buffer_len);
3010 ioarcb->write_ioadl_len =
3011 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
3013 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3014 ioadl[i].flags_and_data_len =
3015 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i]));
3017 cpu_to_be32(sg_dma_address(&scatterlist[i]));
3020 ioadl[i-1].flags_and_data_len |=
3021 cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3025 * ipr_update_ioa_ucode - Update IOA's microcode
3026 * @ioa_cfg: ioa config struct
3027 * @sglist: scatter/gather list
3029 * Initiate an adapter reset to update the IOA's microcode
3032 * 0 on success / -EIO on failure
3034 static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg,
3035 struct ipr_sglist *sglist)
3037 unsigned long lock_flags;
3039 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3040 while(ioa_cfg->in_reset_reload) {
3041 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3042 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3043 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3046 if (ioa_cfg->ucode_sglist) {
3047 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3048 dev_err(&ioa_cfg->pdev->dev,
3049 "Microcode download already in progress\n");
3053 sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist,
3054 sglist->num_sg, DMA_TO_DEVICE);
3056 if (!sglist->num_dma_sg) {
3057 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3058 dev_err(&ioa_cfg->pdev->dev,
3059 "Failed to map microcode download buffer!\n");
3063 ioa_cfg->ucode_sglist = sglist;
3064 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3065 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3066 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3068 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3069 ioa_cfg->ucode_sglist = NULL;
3070 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3075 * ipr_store_update_fw - Update the firmware on the adapter
3076 * @class_dev: class_device struct
3078 * @count: buffer size
3080 * This function will update the firmware on the adapter.
3083 * count on success / other on failure
3085 static ssize_t ipr_store_update_fw(struct class_device *class_dev,
3086 const char *buf, size_t count)
3088 struct Scsi_Host *shost = class_to_shost(class_dev);
3089 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3090 struct ipr_ucode_image_header *image_hdr;
3091 const struct firmware *fw_entry;
3092 struct ipr_sglist *sglist;
3095 int len, result, dnld_size;
3097 if (!capable(CAP_SYS_ADMIN))
3100 len = snprintf(fname, 99, "%s", buf);
3101 fname[len-1] = '\0';
3103 if(request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
3104 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname);
3108 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data;
3110 if (be32_to_cpu(image_hdr->header_length) > fw_entry->size ||
3111 (ioa_cfg->vpd_cbs->page3_data.card_type &&
3112 ioa_cfg->vpd_cbs->page3_data.card_type != image_hdr->card_type)) {
3113 dev_err(&ioa_cfg->pdev->dev, "Invalid microcode buffer\n");
3114 release_firmware(fw_entry);
3118 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length);
3119 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length);
3120 sglist = ipr_alloc_ucode_buffer(dnld_size);
3123 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n");
3124 release_firmware(fw_entry);
3128 result = ipr_copy_ucode_buffer(sglist, src, dnld_size);
3131 dev_err(&ioa_cfg->pdev->dev,
3132 "Microcode buffer copy to DMA buffer failed\n");
3136 result = ipr_update_ioa_ucode(ioa_cfg, sglist);
3141 ipr_free_ucode_buffer(sglist);
3142 release_firmware(fw_entry);
3146 static struct class_device_attribute ipr_update_fw_attr = {
3148 .name = "update_fw",
3151 .store = ipr_store_update_fw
3154 static struct class_device_attribute *ipr_ioa_attrs[] = {
3155 &ipr_fw_version_attr,
3156 &ipr_log_level_attr,
3157 &ipr_diagnostics_attr,
3158 &ipr_ioa_state_attr,
3159 &ipr_ioa_reset_attr,
3160 &ipr_update_fw_attr,
3161 &ipr_ioa_cache_attr,
3165 #ifdef CONFIG_SCSI_IPR_DUMP
3167 * ipr_read_dump - Dump the adapter
3168 * @kobj: kobject struct
3171 * @count: buffer size
3174 * number of bytes printed to buffer
3176 static ssize_t ipr_read_dump(struct kobject *kobj, char *buf,
3177 loff_t off, size_t count)
3179 struct class_device *cdev = container_of(kobj,struct class_device,kobj);
3180 struct Scsi_Host *shost = class_to_shost(cdev);
3181 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3182 struct ipr_dump *dump;
3183 unsigned long lock_flags = 0;
3188 if (!capable(CAP_SYS_ADMIN))
3191 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3192 dump = ioa_cfg->dump;
3194 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) {
3195 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3198 kref_get(&dump->kref);
3199 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3201 if (off > dump->driver_dump.hdr.len) {
3202 kref_put(&dump->kref, ipr_release_dump);
3206 if (off + count > dump->driver_dump.hdr.len) {
3207 count = dump->driver_dump.hdr.len - off;
3211 if (count && off < sizeof(dump->driver_dump)) {
3212 if (off + count > sizeof(dump->driver_dump))
3213 len = sizeof(dump->driver_dump) - off;
3216 src = (u8 *)&dump->driver_dump + off;
3217 memcpy(buf, src, len);
3223 off -= sizeof(dump->driver_dump);
3225 if (count && off < offsetof(struct ipr_ioa_dump, ioa_data)) {
3226 if (off + count > offsetof(struct ipr_ioa_dump, ioa_data))
3227 len = offsetof(struct ipr_ioa_dump, ioa_data) - off;
3230 src = (u8 *)&dump->ioa_dump + off;
3231 memcpy(buf, src, len);
3237 off -= offsetof(struct ipr_ioa_dump, ioa_data);
3240 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK))
3241 len = PAGE_ALIGN(off) - off;
3244 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT];
3245 src += off & ~PAGE_MASK;
3246 memcpy(buf, src, len);
3252 kref_put(&dump->kref, ipr_release_dump);
3257 * ipr_alloc_dump - Prepare for adapter dump
3258 * @ioa_cfg: ioa config struct
3261 * 0 on success / other on failure
3263 static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
3265 struct ipr_dump *dump;
3266 unsigned long lock_flags = 0;
3268 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
3271 ipr_err("Dump memory allocation failed\n");
3275 kref_init(&dump->kref);
3276 dump->ioa_cfg = ioa_cfg;
3278 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3280 if (INACTIVE != ioa_cfg->sdt_state) {
3281 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3286 ioa_cfg->dump = dump;
3287 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
3288 if (ioa_cfg->ioa_is_dead && !ioa_cfg->dump_taken) {
3289 ioa_cfg->dump_taken = 1;
3290 schedule_work(&ioa_cfg->work_q);
3292 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3298 * ipr_free_dump - Free adapter dump memory
3299 * @ioa_cfg: ioa config struct
3302 * 0 on success / other on failure
3304 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
3306 struct ipr_dump *dump;
3307 unsigned long lock_flags = 0;
3311 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3312 dump = ioa_cfg->dump;
3314 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3318 ioa_cfg->dump = NULL;
3319 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3321 kref_put(&dump->kref, ipr_release_dump);
3328 * ipr_write_dump - Setup dump state of adapter
3329 * @kobj: kobject struct
3332 * @count: buffer size
3335 * number of bytes printed to buffer
3337 static ssize_t ipr_write_dump(struct kobject *kobj, char *buf,
3338 loff_t off, size_t count)
3340 struct class_device *cdev = container_of(kobj,struct class_device,kobj);
3341 struct Scsi_Host *shost = class_to_shost(cdev);
3342 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3345 if (!capable(CAP_SYS_ADMIN))
3349 rc = ipr_alloc_dump(ioa_cfg);
3350 else if (buf[0] == '0')
3351 rc = ipr_free_dump(ioa_cfg);
3361 static struct bin_attribute ipr_dump_attr = {
3364 .mode = S_IRUSR | S_IWUSR,
3367 .read = ipr_read_dump,
3368 .write = ipr_write_dump
3371 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; };
3375 * ipr_change_queue_depth - Change the device's queue depth
3376 * @sdev: scsi device struct
3377 * @qdepth: depth to set
3382 static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth)
3384 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
3385 struct ipr_resource_entry *res;
3386 unsigned long lock_flags = 0;
3388 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3389 res = (struct ipr_resource_entry *)sdev->hostdata;
3391 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN)
3392 qdepth = IPR_MAX_CMD_PER_ATA_LUN;
3393 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3395 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
3396 return sdev->queue_depth;
3400 * ipr_change_queue_type - Change the device's queue type
3401 * @dsev: scsi device struct
3402 * @tag_type: type of tags to use
3405 * actual queue type set
3407 static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type)
3409 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
3410 struct ipr_resource_entry *res;
3411 unsigned long lock_flags = 0;
3413 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3414 res = (struct ipr_resource_entry *)sdev->hostdata;
3417 if (ipr_is_gscsi(res) && sdev->tagged_supported) {
3419 * We don't bother quiescing the device here since the
3420 * adapter firmware does it for us.
3422 scsi_set_tag_type(sdev, tag_type);
3425 scsi_activate_tcq(sdev, sdev->queue_depth);
3427 scsi_deactivate_tcq(sdev, sdev->queue_depth);
3433 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3438 * ipr_show_adapter_handle - Show the adapter's resource handle for this device
3439 * @dev: device struct
3443 * number of bytes printed to buffer
3445 static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf)
3447 struct scsi_device *sdev = to_scsi_device(dev);
3448 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
3449 struct ipr_resource_entry *res;
3450 unsigned long lock_flags = 0;
3451 ssize_t len = -ENXIO;
3453 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3454 res = (struct ipr_resource_entry *)sdev->hostdata;
3456 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->cfgte.res_handle);
3457 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3461 static struct device_attribute ipr_adapter_handle_attr = {
3463 .name = "adapter_handle",
3466 .show = ipr_show_adapter_handle
3469 static struct device_attribute *ipr_dev_attrs[] = {
3470 &ipr_adapter_handle_attr,
3475 * ipr_biosparam - Return the HSC mapping
3476 * @sdev: scsi device struct
3477 * @block_device: block device pointer
3478 * @capacity: capacity of the device
3479 * @parm: Array containing returned HSC values.
3481 * This function generates the HSC parms that fdisk uses.
3482 * We want to make sure we return something that places partitions
3483 * on 4k boundaries for best performance with the IOA.
3488 static int ipr_biosparam(struct scsi_device *sdev,
3489 struct block_device *block_device,
3490 sector_t capacity, int *parm)
3498 cylinders = capacity;
3499 sector_div(cylinders, (128 * 32));
3504 parm[2] = cylinders;
3510 * ipr_find_starget - Find target based on bus/target.
3511 * @starget: scsi target struct
3514 * resource entry pointer if found / NULL if not found
3516 static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget)
3518 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
3519 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
3520 struct ipr_resource_entry *res;
3522 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3523 if ((res->cfgte.res_addr.bus == starget->channel) &&
3524 (res->cfgte.res_addr.target == starget->id) &&
3525 (res->cfgte.res_addr.lun == 0)) {
3533 static struct ata_port_info sata_port_info;
3536 * ipr_target_alloc - Prepare for commands to a SCSI target
3537 * @starget: scsi target struct
3539 * If the device is a SATA device, this function allocates an
3540 * ATA port with libata, else it does nothing.
3543 * 0 on success / non-0 on failure
3545 static int ipr_target_alloc(struct scsi_target *starget)
3547 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
3548 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
3549 struct ipr_sata_port *sata_port;
3550 struct ata_port *ap;
3551 struct ipr_resource_entry *res;
3552 unsigned long lock_flags;
3554 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3555 res = ipr_find_starget(starget);
3556 starget->hostdata = NULL;
3558 if (res && ipr_is_gata(res)) {
3559 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3560 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL);
3564 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost);
3566 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3567 sata_port->ioa_cfg = ioa_cfg;
3569 sata_port->res = res;
3571 res->sata_port = sata_port;
3572 ap->private_data = sata_port;
3573 starget->hostdata = sata_port;
3579 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3585 * ipr_target_destroy - Destroy a SCSI target
3586 * @starget: scsi target struct
3588 * If the device was a SATA device, this function frees the libata
3589 * ATA port, else it does nothing.
3592 static void ipr_target_destroy(struct scsi_target *starget)
3594 struct ipr_sata_port *sata_port = starget->hostdata;
3597 starget->hostdata = NULL;
3598 ata_sas_port_destroy(sata_port->ap);
3604 * ipr_find_sdev - Find device based on bus/target/lun.
3605 * @sdev: scsi device struct
3608 * resource entry pointer if found / NULL if not found
3610 static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev)
3612 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
3613 struct ipr_resource_entry *res;
3615 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3616 if ((res->cfgte.res_addr.bus == sdev->channel) &&
3617 (res->cfgte.res_addr.target == sdev->id) &&
3618 (res->cfgte.res_addr.lun == sdev->lun))
3626 * ipr_slave_destroy - Unconfigure a SCSI device
3627 * @sdev: scsi device struct
3632 static void ipr_slave_destroy(struct scsi_device *sdev)
3634 struct ipr_resource_entry *res;
3635 struct ipr_ioa_cfg *ioa_cfg;
3636 unsigned long lock_flags = 0;
3638 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
3640 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3641 res = (struct ipr_resource_entry *) sdev->hostdata;
3644 ata_port_disable(res->sata_port->ap);
3645 sdev->hostdata = NULL;
3647 res->sata_port = NULL;
3649 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3653 * ipr_slave_configure - Configure a SCSI device
3654 * @sdev: scsi device struct
3656 * This function configures the specified scsi device.
3661 static int ipr_slave_configure(struct scsi_device *sdev)
3663 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
3664 struct ipr_resource_entry *res;
3665 unsigned long lock_flags = 0;
3667 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3668 res = sdev->hostdata;
3670 if (ipr_is_af_dasd_device(res))
3671 sdev->type = TYPE_RAID;
3672 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) {
3673 sdev->scsi_level = 4;
3674 sdev->no_uld_attach = 1;
3676 if (ipr_is_vset_device(res)) {
3677 sdev->timeout = IPR_VSET_RW_TIMEOUT;
3678 blk_queue_max_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
3680 if (ipr_is_vset_device(res) || ipr_is_scsi_disk(res))
3681 sdev->allow_restart = 1;
3682 if (ipr_is_gata(res) && res->sata_port) {
3683 scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN);
3684 ata_sas_slave_configure(sdev, res->sata_port->ap);
3686 scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun);
3689 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3694 * ipr_ata_slave_alloc - Prepare for commands to a SATA device
3695 * @sdev: scsi device struct
3697 * This function initializes an ATA port so that future commands
3698 * sent through queuecommand will work.
3703 static int ipr_ata_slave_alloc(struct scsi_device *sdev)
3705 struct ipr_sata_port *sata_port = NULL;
3709 if (sdev->sdev_target)
3710 sata_port = sdev->sdev_target->hostdata;
3712 rc = ata_sas_port_init(sata_port->ap);
3714 ipr_slave_destroy(sdev);
3721 * ipr_slave_alloc - Prepare for commands to a device.
3722 * @sdev: scsi device struct
3724 * This function saves a pointer to the resource entry
3725 * in the scsi device struct if the device exists. We
3726 * can then use this pointer in ipr_queuecommand when
3727 * handling new commands.
3730 * 0 on success / -ENXIO if device does not exist
3732 static int ipr_slave_alloc(struct scsi_device *sdev)
3734 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
3735 struct ipr_resource_entry *res;
3736 unsigned long lock_flags;
3739 sdev->hostdata = NULL;
3741 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3743 res = ipr_find_sdev(sdev);
3748 sdev->hostdata = res;
3749 if (!ipr_is_naca_model(res))
3750 res->needs_sync_complete = 1;
3752 if (ipr_is_gata(res)) {
3753 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3754 return ipr_ata_slave_alloc(sdev);
3758 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3764 * ipr_eh_host_reset - Reset the host adapter
3765 * @scsi_cmd: scsi command struct
3770 static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd)
3772 struct ipr_ioa_cfg *ioa_cfg;
3776 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
3778 dev_err(&ioa_cfg->pdev->dev,
3779 "Adapter being reset as a result of error recovery.\n");
3781 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
3782 ioa_cfg->sdt_state = GET_DUMP;
3784 rc = ipr_reset_reload(ioa_cfg, IPR_SHUTDOWN_ABBREV);
3790 static int ipr_eh_host_reset(struct scsi_cmnd * cmd)
3794 spin_lock_irq(cmd->device->host->host_lock);
3795 rc = __ipr_eh_host_reset(cmd);
3796 spin_unlock_irq(cmd->device->host->host_lock);
3802 * ipr_device_reset - Reset the device
3803 * @ioa_cfg: ioa config struct
3804 * @res: resource entry struct
3806 * This function issues a device reset to the affected device.
3807 * If the device is a SCSI device, a LUN reset will be sent
3808 * to the device first. If that does not work, a target reset
3809 * will be sent. If the device is a SATA device, a PHY reset will
3813 * 0 on success / non-zero on failure
3815 static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
3816 struct ipr_resource_entry *res)
3818 struct ipr_cmnd *ipr_cmd;
3819 struct ipr_ioarcb *ioarcb;
3820 struct ipr_cmd_pkt *cmd_pkt;
3821 struct ipr_ioarcb_ata_regs *regs;
3825 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
3826 ioarcb = &ipr_cmd->ioarcb;
3827 cmd_pkt = &ioarcb->cmd_pkt;
3828 regs = &ioarcb->add_data.u.regs;
3830 ioarcb->res_handle = res->cfgte.res_handle;
3831 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
3832 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
3833 if (ipr_is_gata(res)) {
3834 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET;
3835 ioarcb->add_cmd_parms_len = cpu_to_be32(sizeof(regs->flags));
3836 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
3839 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
3840 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
3841 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
3842 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET)
3843 memcpy(&res->sata_port->ioasa, &ipr_cmd->ioasa.u.gata,
3844 sizeof(struct ipr_ioasa_gata));
3847 return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0);
3851 * ipr_sata_reset - Reset the SATA port
3852 * @ap: SATA port to reset
3853 * @classes: class of the attached device
3855 * This function issues a SATA phy reset to the affected ATA port.
3858 * 0 on success / non-zero on failure
3860 static int ipr_sata_reset(struct ata_port *ap, unsigned int *classes,
3861 unsigned long deadline)
3863 struct ipr_sata_port *sata_port = ap->private_data;
3864 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
3865 struct ipr_resource_entry *res;
3866 unsigned long lock_flags = 0;
3870 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3871 while(ioa_cfg->in_reset_reload) {
3872 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3873 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3874 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3877 res = sata_port->res;
3879 rc = ipr_device_reset(ioa_cfg, res);
3880 switch(res->cfgte.proto) {
3881 case IPR_PROTO_SATA:
3882 case IPR_PROTO_SAS_STP:
3883 *classes = ATA_DEV_ATA;
3885 case IPR_PROTO_SATA_ATAPI:
3886 case IPR_PROTO_SAS_STP_ATAPI:
3887 *classes = ATA_DEV_ATAPI;
3890 *classes = ATA_DEV_UNKNOWN;
3895 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3901 * ipr_eh_dev_reset - Reset the device
3902 * @scsi_cmd: scsi command struct
3904 * This function issues a device reset to the affected device.
3905 * A LUN reset will be sent to the device first. If that does
3906 * not work, a target reset will be sent.
3911 static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd)
3913 struct ipr_cmnd *ipr_cmd;
3914 struct ipr_ioa_cfg *ioa_cfg;
3915 struct ipr_resource_entry *res;
3916 struct ata_port *ap;
3920 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
3921 res = scsi_cmd->device->hostdata;
3927 * If we are currently going through reset/reload, return failed. This will force the
3928 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
3931 if (ioa_cfg->in_reset_reload)
3933 if (ioa_cfg->ioa_is_dead)
3936 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
3937 if (ipr_cmd->ioarcb.res_handle == res->cfgte.res_handle) {
3938 if (ipr_cmd->scsi_cmd)
3939 ipr_cmd->done = ipr_scsi_eh_done;
3941 ipr_cmd->done = ipr_sata_eh_done;
3942 if (ipr_cmd->qc && !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) {
3943 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
3944 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED;
3949 res->resetting_device = 1;
3950 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n");
3952 if (ipr_is_gata(res) && res->sata_port) {
3953 ap = res->sata_port->ap;
3954 spin_unlock_irq(scsi_cmd->device->host->host_lock);
3955 ata_do_eh(ap, NULL, NULL, ipr_sata_reset, NULL);
3956 spin_lock_irq(scsi_cmd->device->host->host_lock);
3958 rc = ipr_device_reset(ioa_cfg, res);
3959 res->resetting_device = 0;
3962 return (rc ? FAILED : SUCCESS);
3965 static int ipr_eh_dev_reset(struct scsi_cmnd * cmd)
3969 spin_lock_irq(cmd->device->host->host_lock);
3970 rc = __ipr_eh_dev_reset(cmd);
3971 spin_unlock_irq(cmd->device->host->host_lock);
3977 * ipr_bus_reset_done - Op done function for bus reset.
3978 * @ipr_cmd: ipr command struct
3980 * This function is the op done function for a bus reset
3985 static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
3987 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
3988 struct ipr_resource_entry *res;
3991 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3992 if (!memcmp(&res->cfgte.res_handle, &ipr_cmd->ioarcb.res_handle,
3993 sizeof(res->cfgte.res_handle))) {
3994 scsi_report_bus_reset(ioa_cfg->host, res->cfgte.res_addr.bus);
4000 * If abort has not completed, indicate the reset has, else call the
4001 * abort's done function to wake the sleeping eh thread
4003 if (ipr_cmd->sibling->sibling)
4004 ipr_cmd->sibling->sibling = NULL;
4006 ipr_cmd->sibling->done(ipr_cmd->sibling);
4008 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4013 * ipr_abort_timeout - An abort task has timed out
4014 * @ipr_cmd: ipr command struct
4016 * This function handles when an abort task times out. If this
4017 * happens we issue a bus reset since we have resources tied
4018 * up that must be freed before returning to the midlayer.
4023 static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
4025 struct ipr_cmnd *reset_cmd;
4026 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4027 struct ipr_cmd_pkt *cmd_pkt;
4028 unsigned long lock_flags = 0;
4031 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4032 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) {
4033 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4037 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n");
4038 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4039 ipr_cmd->sibling = reset_cmd;
4040 reset_cmd->sibling = ipr_cmd;
4041 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle;
4042 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt;
4043 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4044 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
4045 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET;
4047 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
4048 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4053 * ipr_cancel_op - Cancel specified op
4054 * @scsi_cmd: scsi command struct
4056 * This function cancels specified op.
4061 static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd)
4063 struct ipr_cmnd *ipr_cmd;
4064 struct ipr_ioa_cfg *ioa_cfg;
4065 struct ipr_resource_entry *res;
4066 struct ipr_cmd_pkt *cmd_pkt;
4071 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
4072 res = scsi_cmd->device->hostdata;
4074 /* If we are currently going through reset/reload, return failed.
4075 * This will force the mid-layer to call ipr_eh_host_reset,
4076 * which will then go to sleep and wait for the reset to complete
4078 if (ioa_cfg->in_reset_reload || ioa_cfg->ioa_is_dead)
4080 if (!res || !ipr_is_gscsi(res))
4083 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
4084 if (ipr_cmd->scsi_cmd == scsi_cmd) {
4085 ipr_cmd->done = ipr_scsi_eh_done;
4094 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4095 ipr_cmd->ioarcb.res_handle = res->cfgte.res_handle;
4096 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
4097 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4098 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
4099 ipr_cmd->u.sdev = scsi_cmd->device;
4101 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n",
4103 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
4104 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4107 * If the abort task timed out and we sent a bus reset, we will get
4108 * one the following responses to the abort
4110 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) {
4115 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4116 if (!ipr_is_naca_model(res))
4117 res->needs_sync_complete = 1;
4120 return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS);
4124 * ipr_eh_abort - Abort a single op
4125 * @scsi_cmd: scsi command struct
4130 static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd)
4132 unsigned long flags;
4137 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags);
4138 rc = ipr_cancel_op(scsi_cmd);
4139 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags);
4146 * ipr_handle_other_interrupt - Handle "other" interrupts
4147 * @ioa_cfg: ioa config struct
4148 * @int_reg: interrupt register
4151 * IRQ_NONE / IRQ_HANDLED
4153 static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg,
4154 volatile u32 int_reg)
4156 irqreturn_t rc = IRQ_HANDLED;
4158 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
4159 /* Mask the interrupt */
4160 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg);
4162 /* Clear the interrupt */
4163 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg);
4164 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
4166 list_del(&ioa_cfg->reset_cmd->queue);
4167 del_timer(&ioa_cfg->reset_cmd->timer);
4168 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
4170 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED)
4171 ioa_cfg->ioa_unit_checked = 1;
4173 dev_err(&ioa_cfg->pdev->dev,
4174 "Permanent IOA failure. 0x%08X\n", int_reg);
4176 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4177 ioa_cfg->sdt_state = GET_DUMP;
4179 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
4180 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
4187 * ipr_isr - Interrupt service routine
4189 * @devp: pointer to ioa config struct
4192 * IRQ_NONE / IRQ_HANDLED
4194 static irqreturn_t ipr_isr(int irq, void *devp)
4196 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
4197 unsigned long lock_flags = 0;
4198 volatile u32 int_reg, int_mask_reg;
4201 struct ipr_cmnd *ipr_cmd;
4202 irqreturn_t rc = IRQ_NONE;
4204 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4206 /* If interrupts are disabled, ignore the interrupt */
4207 if (!ioa_cfg->allow_interrupts) {
4208 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4212 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
4213 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
4215 /* If an interrupt on the adapter did not occur, ignore it */
4216 if (unlikely((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0)) {
4217 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4224 while ((be32_to_cpu(*ioa_cfg->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
4225 ioa_cfg->toggle_bit) {
4227 cmd_index = (be32_to_cpu(*ioa_cfg->hrrq_curr) &
4228 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT;
4230 if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) {
4231 ioa_cfg->errors_logged++;
4232 dev_err(&ioa_cfg->pdev->dev, "Invalid response handle from IOA\n");
4234 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4235 ioa_cfg->sdt_state = GET_DUMP;
4237 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
4238 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4242 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
4244 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4246 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
4248 list_del(&ipr_cmd->queue);
4249 del_timer(&ipr_cmd->timer);
4250 ipr_cmd->done(ipr_cmd);
4254 if (ioa_cfg->hrrq_curr < ioa_cfg->hrrq_end) {
4255 ioa_cfg->hrrq_curr++;
4257 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
4258 ioa_cfg->toggle_bit ^= 1u;
4262 if (ipr_cmd != NULL) {
4263 /* Clear the PCI interrupt */
4264 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg);
4265 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
4270 if (unlikely(rc == IRQ_NONE))
4271 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg);
4273 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4278 * ipr_build_ioadl - Build a scatter/gather list and map the buffer
4279 * @ioa_cfg: ioa config struct
4280 * @ipr_cmd: ipr command struct
4283 * 0 on success / -1 on failure
4285 static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg,
4286 struct ipr_cmnd *ipr_cmd)
4289 struct scatterlist *sglist;
4291 u32 ioadl_flags = 0;
4292 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4293 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
4294 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
4296 length = scsi_cmd->request_bufflen;
4301 if (scsi_cmd->use_sg) {
4302 ipr_cmd->dma_use_sg = pci_map_sg(ioa_cfg->pdev,
4303 scsi_cmd->request_buffer,
4305 scsi_cmd->sc_data_direction);
4307 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
4308 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
4309 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
4310 ioarcb->write_data_transfer_length = cpu_to_be32(length);
4311 ioarcb->write_ioadl_len =
4312 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
4313 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
4314 ioadl_flags = IPR_IOADL_FLAGS_READ;
4315 ioarcb->read_data_transfer_length = cpu_to_be32(length);
4316 ioarcb->read_ioadl_len =
4317 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
4320 sglist = scsi_cmd->request_buffer;
4322 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->add_data.u.ioadl)) {
4323 ioadl = ioarcb->add_data.u.ioadl;
4324 ioarcb->write_ioadl_addr =
4325 cpu_to_be32(be32_to_cpu(ioarcb->ioarcb_host_pci_addr) +
4326 offsetof(struct ipr_ioarcb, add_data));
4327 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
4330 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
4331 ioadl[i].flags_and_data_len =
4332 cpu_to_be32(ioadl_flags | sg_dma_len(&sglist[i]));
4334 cpu_to_be32(sg_dma_address(&sglist[i]));
4337 if (likely(ipr_cmd->dma_use_sg)) {
4338 ioadl[i-1].flags_and_data_len |=
4339 cpu_to_be32(IPR_IOADL_FLAGS_LAST);
4342 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
4344 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
4345 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
4346 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
4347 ioarcb->write_data_transfer_length = cpu_to_be32(length);
4348 ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
4349 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
4350 ioadl_flags = IPR_IOADL_FLAGS_READ;
4351 ioarcb->read_data_transfer_length = cpu_to_be32(length);
4352 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
4355 ipr_cmd->dma_handle = pci_map_single(ioa_cfg->pdev,
4356 scsi_cmd->request_buffer, length,
4357 scsi_cmd->sc_data_direction);
4359 if (likely(!pci_dma_mapping_error(ipr_cmd->dma_handle))) {
4360 ioadl = ioarcb->add_data.u.ioadl;
4361 ioarcb->write_ioadl_addr =
4362 cpu_to_be32(be32_to_cpu(ioarcb->ioarcb_host_pci_addr) +
4363 offsetof(struct ipr_ioarcb, add_data));
4364 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
4365 ipr_cmd->dma_use_sg = 1;
4366 ioadl[0].flags_and_data_len =
4367 cpu_to_be32(ioadl_flags | length | IPR_IOADL_FLAGS_LAST);
4368 ioadl[0].address = cpu_to_be32(ipr_cmd->dma_handle);
4371 dev_err(&ioa_cfg->pdev->dev, "pci_map_single failed!\n");
4378 * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes
4379 * @scsi_cmd: scsi command struct
4384 static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd)
4387 u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK;
4389 if (scsi_populate_tag_msg(scsi_cmd, tag)) {
4391 case MSG_SIMPLE_TAG:
4392 rc = IPR_FLAGS_LO_SIMPLE_TASK;
4395 rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK;
4397 case MSG_ORDERED_TAG:
4398 rc = IPR_FLAGS_LO_ORDERED_TASK;
4407 * ipr_erp_done - Process completion of ERP for a device
4408 * @ipr_cmd: ipr command struct
4410 * This function copies the sense buffer into the scsi_cmd
4411 * struct and pushes the scsi_done function.
4416 static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
4418 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4419 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
4420 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4421 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4423 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
4424 scsi_cmd->result |= (DID_ERROR << 16);
4425 scmd_printk(KERN_ERR, scsi_cmd,
4426 "Request Sense failed with IOASC: 0x%08X\n", ioasc);
4428 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer,
4429 SCSI_SENSE_BUFFERSIZE);
4433 if (!ipr_is_naca_model(res))
4434 res->needs_sync_complete = 1;
4437 ipr_unmap_sglist(ioa_cfg, ipr_cmd);
4438 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4439 scsi_cmd->scsi_done(scsi_cmd);
4443 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP
4444 * @ipr_cmd: ipr command struct
4449 static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
4451 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
4452 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
4453 dma_addr_t dma_addr = be32_to_cpu(ioarcb->ioarcb_host_pci_addr);
4455 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
4456 ioarcb->write_data_transfer_length = 0;
4457 ioarcb->read_data_transfer_length = 0;
4458 ioarcb->write_ioadl_len = 0;
4459 ioarcb->read_ioadl_len = 0;
4461 ioasa->residual_data_len = 0;
4462 ioarcb->write_ioadl_addr =
4463 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioadl));
4464 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
4468 * ipr_erp_request_sense - Send request sense to a device
4469 * @ipr_cmd: ipr command struct
4471 * This function sends a request sense to a device as a result
4472 * of a check condition.
4477 static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
4479 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
4480 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4482 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
4483 ipr_erp_done(ipr_cmd);
4487 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
4489 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB;
4490 cmd_pkt->cdb[0] = REQUEST_SENSE;
4491 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE;
4492 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE;
4493 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
4494 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ);
4496 ipr_cmd->ioadl[0].flags_and_data_len =
4497 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | SCSI_SENSE_BUFFERSIZE);
4498 ipr_cmd->ioadl[0].address =
4499 cpu_to_be32(ipr_cmd->sense_buffer_dma);
4501 ipr_cmd->ioarcb.read_ioadl_len =
4502 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
4503 ipr_cmd->ioarcb.read_data_transfer_length =
4504 cpu_to_be32(SCSI_SENSE_BUFFERSIZE);
4506 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout,
4507 IPR_REQUEST_SENSE_TIMEOUT * 2);
4511 * ipr_erp_cancel_all - Send cancel all to a device
4512 * @ipr_cmd: ipr command struct
4514 * This function sends a cancel all to a device to clear the
4515 * queue. If we are running TCQ on the device, QERR is set to 1,
4516 * which means all outstanding ops have been dropped on the floor.
4517 * Cancel all will return them to us.
4522 static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
4524 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4525 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
4526 struct ipr_cmd_pkt *cmd_pkt;
4530 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
4532 if (!scsi_get_tag_type(scsi_cmd->device)) {
4533 ipr_erp_request_sense(ipr_cmd);
4537 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
4538 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4539 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
4541 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout,
4542 IPR_CANCEL_ALL_TIMEOUT);
4546 * ipr_dump_ioasa - Dump contents of IOASA
4547 * @ioa_cfg: ioa config struct
4548 * @ipr_cmd: ipr command struct
4549 * @res: resource entry struct
4551 * This function is invoked by the interrupt handler when ops
4552 * fail. It will log the IOASA if appropriate. Only called
4558 static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
4559 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res)
4563 u32 ioasc, fd_ioasc;
4564 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
4565 __be32 *ioasa_data = (__be32 *)ioasa;
4568 ioasc = be32_to_cpu(ioasa->ioasc) & IPR_IOASC_IOASC_MASK;
4569 fd_ioasc = be32_to_cpu(ioasa->fd_ioasc) & IPR_IOASC_IOASC_MASK;
4574 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
4577 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc)
4578 error_index = ipr_get_error(fd_ioasc);
4580 error_index = ipr_get_error(ioasc);
4582 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) {
4583 /* Don't log an error if the IOA already logged one */
4584 if (ioasa->ilid != 0)
4587 if (!ipr_is_gscsi(res))
4590 if (ipr_error_table[error_index].log_ioasa == 0)
4594 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error);
4596 if (sizeof(struct ipr_ioasa) < be16_to_cpu(ioasa->ret_stat_len))
4597 data_len = sizeof(struct ipr_ioasa);
4599 data_len = be16_to_cpu(ioasa->ret_stat_len);
4601 ipr_err("IOASA Dump:\n");
4603 for (i = 0; i < data_len / 4; i += 4) {
4604 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
4605 be32_to_cpu(ioasa_data[i]),
4606 be32_to_cpu(ioasa_data[i+1]),
4607 be32_to_cpu(ioasa_data[i+2]),
4608 be32_to_cpu(ioasa_data[i+3]));
4613 * ipr_gen_sense - Generate SCSI sense data from an IOASA
4615 * @sense_buf: sense data buffer
4620 static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
4623 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer;
4624 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata;
4625 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
4626 u32 ioasc = be32_to_cpu(ioasa->ioasc);
4628 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
4630 if (ioasc >= IPR_FIRST_DRIVER_IOASC)
4633 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION;
4635 if (ipr_is_vset_device(res) &&
4636 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC &&
4637 ioasa->u.vset.failing_lba_hi != 0) {
4638 sense_buf[0] = 0x72;
4639 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc);
4640 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc);
4641 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc);
4645 sense_buf[9] = 0x0A;
4646 sense_buf[10] = 0x80;
4648 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi);
4650 sense_buf[12] = (failing_lba & 0xff000000) >> 24;
4651 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16;
4652 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8;
4653 sense_buf[15] = failing_lba & 0x000000ff;
4655 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
4657 sense_buf[16] = (failing_lba & 0xff000000) >> 24;
4658 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16;
4659 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8;
4660 sense_buf[19] = failing_lba & 0x000000ff;
4662 sense_buf[0] = 0x70;
4663 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc);
4664 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc);
4665 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc);
4667 /* Illegal request */
4668 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) &&
4669 (be32_to_cpu(ioasa->ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
4670 sense_buf[7] = 10; /* additional length */
4672 /* IOARCB was in error */
4673 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24)
4674 sense_buf[15] = 0xC0;
4675 else /* Parameter data was invalid */
4676 sense_buf[15] = 0x80;
4679 ((IPR_FIELD_POINTER_MASK &
4680 be32_to_cpu(ioasa->ioasc_specific)) >> 8) & 0xff;
4682 (IPR_FIELD_POINTER_MASK &
4683 be32_to_cpu(ioasa->ioasc_specific)) & 0xff;
4685 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) {
4686 if (ipr_is_vset_device(res))
4687 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
4689 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba);
4691 sense_buf[0] |= 0x80; /* Or in the Valid bit */
4692 sense_buf[3] = (failing_lba & 0xff000000) >> 24;
4693 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16;
4694 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8;
4695 sense_buf[6] = failing_lba & 0x000000ff;
4698 sense_buf[7] = 6; /* additional length */
4704 * ipr_get_autosense - Copy autosense data to sense buffer
4705 * @ipr_cmd: ipr command struct
4707 * This function copies the autosense buffer to the buffer
4708 * in the scsi_cmd, if there is autosense available.
4711 * 1 if autosense was available / 0 if not
4713 static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
4715 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
4717 if ((be32_to_cpu(ioasa->ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
4720 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
4721 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
4722 SCSI_SENSE_BUFFERSIZE));
4727 * ipr_erp_start - Process an error response for a SCSI op
4728 * @ioa_cfg: ioa config struct
4729 * @ipr_cmd: ipr command struct
4731 * This function determines whether or not to initiate ERP
4732 * on the affected device.
4737 static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
4738 struct ipr_cmnd *ipr_cmd)
4740 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4741 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
4742 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4743 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK;
4746 ipr_scsi_eh_done(ipr_cmd);
4750 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS)
4751 ipr_gen_sense(ipr_cmd);
4753 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
4755 switch (masked_ioasc) {
4756 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
4757 if (ipr_is_naca_model(res))
4758 scsi_cmd->result |= (DID_ABORT << 16);
4760 scsi_cmd->result |= (DID_IMM_RETRY << 16);
4762 case IPR_IOASC_IR_RESOURCE_HANDLE:
4763 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
4764 scsi_cmd->result |= (DID_NO_CONNECT << 16);
4766 case IPR_IOASC_HW_SEL_TIMEOUT:
4767 scsi_cmd->result |= (DID_NO_CONNECT << 16);
4768 if (!ipr_is_naca_model(res))
4769 res->needs_sync_complete = 1;
4771 case IPR_IOASC_SYNC_REQUIRED:
4773 res->needs_sync_complete = 1;
4774 scsi_cmd->result |= (DID_IMM_RETRY << 16);
4776 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
4777 case IPR_IOASA_IR_DUAL_IOA_DISABLED:
4778 scsi_cmd->result |= (DID_PASSTHROUGH << 16);
4780 case IPR_IOASC_BUS_WAS_RESET:
4781 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER:
4783 * Report the bus reset and ask for a retry. The device
4784 * will give CC/UA the next command.
4786 if (!res->resetting_device)
4787 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
4788 scsi_cmd->result |= (DID_ERROR << 16);
4789 if (!ipr_is_naca_model(res))
4790 res->needs_sync_complete = 1;
4792 case IPR_IOASC_HW_DEV_BUS_STATUS:
4793 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
4794 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
4795 if (!ipr_get_autosense(ipr_cmd)) {
4796 if (!ipr_is_naca_model(res)) {
4797 ipr_erp_cancel_all(ipr_cmd);
4802 if (!ipr_is_naca_model(res))
4803 res->needs_sync_complete = 1;
4805 case IPR_IOASC_NR_INIT_CMD_REQUIRED:
4808 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
4809 scsi_cmd->result |= (DID_ERROR << 16);
4810 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
4811 res->needs_sync_complete = 1;
4815 ipr_unmap_sglist(ioa_cfg, ipr_cmd);
4816 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4817 scsi_cmd->scsi_done(scsi_cmd);
4821 * ipr_scsi_done - mid-layer done function
4822 * @ipr_cmd: ipr command struct
4824 * This function is invoked by the interrupt handler for
4825 * ops generated by the SCSI mid-layer
4830 static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
4832 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4833 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4834 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4836 scsi_cmd->resid = be32_to_cpu(ipr_cmd->ioasa.residual_data_len);
4838 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
4839 ipr_unmap_sglist(ioa_cfg, ipr_cmd);
4840 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4841 scsi_cmd->scsi_done(scsi_cmd);
4843 ipr_erp_start(ioa_cfg, ipr_cmd);
4847 * ipr_queuecommand - Queue a mid-layer request
4848 * @scsi_cmd: scsi command struct
4849 * @done: done function
4851 * This function queues a request generated by the mid-layer.
4855 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy
4856 * SCSI_MLQUEUE_HOST_BUSY if host is busy
4858 static int ipr_queuecommand(struct scsi_cmnd *scsi_cmd,
4859 void (*done) (struct scsi_cmnd *))
4861 struct ipr_ioa_cfg *ioa_cfg;
4862 struct ipr_resource_entry *res;
4863 struct ipr_ioarcb *ioarcb;
4864 struct ipr_cmnd *ipr_cmd;
4867 scsi_cmd->scsi_done = done;
4868 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
4869 res = scsi_cmd->device->hostdata;
4870 scsi_cmd->result = (DID_OK << 16);
4873 * We are currently blocking all devices due to a host reset
4874 * We have told the host to stop giving us new requests, but
4875 * ERP ops don't count. FIXME
4877 if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead))
4878 return SCSI_MLQUEUE_HOST_BUSY;
4881 * FIXME - Create scsi_set_host_offline interface
4882 * and the ioa_is_dead check can be removed
4884 if (unlikely(ioa_cfg->ioa_is_dead || !res)) {
4885 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
4886 scsi_cmd->result = (DID_NO_CONNECT << 16);
4887 scsi_cmd->scsi_done(scsi_cmd);
4891 if (ipr_is_gata(res) && res->sata_port)
4892 return ata_sas_queuecmd(scsi_cmd, done, res->sata_port->ap);
4894 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4895 ioarcb = &ipr_cmd->ioarcb;
4896 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
4898 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len);
4899 ipr_cmd->scsi_cmd = scsi_cmd;
4900 ioarcb->res_handle = res->cfgte.res_handle;
4901 ipr_cmd->done = ipr_scsi_done;
4902 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_PHYS_LOC(res->cfgte.res_addr));
4904 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
4905 if (scsi_cmd->underflow == 0)
4906 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
4908 if (res->needs_sync_complete) {
4909 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
4910 res->needs_sync_complete = 0;
4913 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
4914 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
4915 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
4916 ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd);
4919 if (scsi_cmd->cmnd[0] >= 0xC0 &&
4920 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE))
4921 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
4923 if (likely(rc == 0))
4924 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
4926 if (likely(rc == 0)) {
4928 writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr),
4929 ioa_cfg->regs.ioarrin_reg);
4931 list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4932 return SCSI_MLQUEUE_HOST_BUSY;
4939 * ipr_ioctl - IOCTL handler
4940 * @sdev: scsi device struct
4945 * 0 on success / other on failure
4947 static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
4949 struct ipr_resource_entry *res;
4951 res = (struct ipr_resource_entry *)sdev->hostdata;
4952 if (res && ipr_is_gata(res))
4953 return ata_scsi_ioctl(sdev, cmd, arg);
4959 * ipr_info - Get information about the card/driver
4960 * @scsi_host: scsi host struct
4963 * pointer to buffer with description string
4965 static const char * ipr_ioa_info(struct Scsi_Host *host)
4967 static char buffer[512];
4968 struct ipr_ioa_cfg *ioa_cfg;
4969 unsigned long lock_flags = 0;
4971 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata;
4973 spin_lock_irqsave(host->host_lock, lock_flags);
4974 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type);
4975 spin_unlock_irqrestore(host->host_lock, lock_flags);
4980 static struct scsi_host_template driver_template = {
4981 .module = THIS_MODULE,
4983 .info = ipr_ioa_info,
4985 .queuecommand = ipr_queuecommand,
4986 .eh_abort_handler = ipr_eh_abort,
4987 .eh_device_reset_handler = ipr_eh_dev_reset,
4988 .eh_host_reset_handler = ipr_eh_host_reset,
4989 .slave_alloc = ipr_slave_alloc,
4990 .slave_configure = ipr_slave_configure,
4991 .slave_destroy = ipr_slave_destroy,
4992 .target_alloc = ipr_target_alloc,
4993 .target_destroy = ipr_target_destroy,
4994 .change_queue_depth = ipr_change_queue_depth,
4995 .change_queue_type = ipr_change_queue_type,
4996 .bios_param = ipr_biosparam,
4997 .can_queue = IPR_MAX_COMMANDS,
4999 .sg_tablesize = IPR_MAX_SGLIST,
5000 .max_sectors = IPR_IOA_MAX_SECTORS,
5001 .cmd_per_lun = IPR_MAX_CMD_PER_LUN,
5002 .use_clustering = ENABLE_CLUSTERING,
5003 .shost_attrs = ipr_ioa_attrs,
5004 .sdev_attrs = ipr_dev_attrs,
5005 .proc_name = IPR_NAME
5009 * ipr_ata_phy_reset - libata phy_reset handler
5010 * @ap: ata port to reset
5013 static void ipr_ata_phy_reset(struct ata_port *ap)
5015 unsigned long flags;
5016 struct ipr_sata_port *sata_port = ap->private_data;
5017 struct ipr_resource_entry *res = sata_port->res;
5018 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
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 if (!ioa_cfg->allow_cmds)
5032 rc = ipr_device_reset(ioa_cfg, res);
5035 ap->ops->port_disable(ap);
5039 switch(res->cfgte.proto) {
5040 case IPR_PROTO_SATA:
5041 case IPR_PROTO_SAS_STP:
5042 ap->device[0].class = ATA_DEV_ATA;
5044 case IPR_PROTO_SATA_ATAPI:
5045 case IPR_PROTO_SAS_STP_ATAPI:
5046 ap->device[0].class = ATA_DEV_ATAPI;
5049 ap->device[0].class = ATA_DEV_UNKNOWN;
5050 ap->ops->port_disable(ap);
5055 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5060 * ipr_ata_post_internal - Cleanup after an internal command
5061 * @qc: ATA queued command
5066 static void ipr_ata_post_internal(struct ata_queued_cmd *qc)
5068 struct ipr_sata_port *sata_port = qc->ap->private_data;
5069 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5070 struct ipr_cmnd *ipr_cmd;
5071 unsigned long flags;
5073 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5074 while(ioa_cfg->in_reset_reload) {
5075 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5076 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5077 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5080 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
5081 if (ipr_cmd->qc == qc) {
5082 ipr_device_reset(ioa_cfg, sata_port->res);
5086 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5090 * ipr_tf_read - Read the current ATA taskfile for the ATA port
5092 * @tf: destination ATA taskfile
5097 static void ipr_tf_read(struct ata_port *ap, struct ata_taskfile *tf)
5099 struct ipr_sata_port *sata_port = ap->private_data;
5100 struct ipr_ioasa_gata *g = &sata_port->ioasa;
5102 tf->feature = g->error;
5103 tf->nsect = g->nsect;
5107 tf->device = g->device;
5108 tf->command = g->status;
5109 tf->hob_nsect = g->hob_nsect;
5110 tf->hob_lbal = g->hob_lbal;
5111 tf->hob_lbam = g->hob_lbam;
5112 tf->hob_lbah = g->hob_lbah;
5113 tf->ctl = g->alt_status;
5117 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure
5118 * @regs: destination
5119 * @tf: source ATA taskfile
5124 static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs,
5125 struct ata_taskfile *tf)
5127 regs->feature = tf->feature;
5128 regs->nsect = tf->nsect;
5129 regs->lbal = tf->lbal;
5130 regs->lbam = tf->lbam;
5131 regs->lbah = tf->lbah;
5132 regs->device = tf->device;
5133 regs->command = tf->command;
5134 regs->hob_feature = tf->hob_feature;
5135 regs->hob_nsect = tf->hob_nsect;
5136 regs->hob_lbal = tf->hob_lbal;
5137 regs->hob_lbam = tf->hob_lbam;
5138 regs->hob_lbah = tf->hob_lbah;
5139 regs->ctl = tf->ctl;
5143 * ipr_sata_done - done function for SATA commands
5144 * @ipr_cmd: ipr command struct
5146 * This function is invoked by the interrupt handler for
5147 * ops generated by the SCSI mid-layer to SATA devices
5152 static void ipr_sata_done(struct ipr_cmnd *ipr_cmd)
5154 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5155 struct ata_queued_cmd *qc = ipr_cmd->qc;
5156 struct ipr_sata_port *sata_port = qc->ap->private_data;
5157 struct ipr_resource_entry *res = sata_port->res;
5158 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
5160 memcpy(&sata_port->ioasa, &ipr_cmd->ioasa.u.gata,
5161 sizeof(struct ipr_ioasa_gata));
5162 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
5164 if (be32_to_cpu(ipr_cmd->ioasa.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
5165 scsi_report_device_reset(ioa_cfg->host, res->cfgte.res_addr.bus,
5166 res->cfgte.res_addr.target);
5168 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
5169 qc->err_mask |= __ac_err_mask(ipr_cmd->ioasa.u.gata.status);
5171 qc->err_mask |= ac_err_mask(ipr_cmd->ioasa.u.gata.status);
5172 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5173 ata_qc_complete(qc);
5177 * ipr_build_ata_ioadl - Build an ATA scatter/gather list
5178 * @ipr_cmd: ipr command struct
5179 * @qc: ATA queued command
5182 static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
5183 struct ata_queued_cmd *qc)
5185 u32 ioadl_flags = 0;
5186 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5187 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
5188 int len = qc->nbytes + qc->pad_len;
5189 struct scatterlist *sg;
5194 if (qc->dma_dir == DMA_TO_DEVICE) {
5195 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5196 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5197 ioarcb->write_data_transfer_length = cpu_to_be32(len);
5198 ioarcb->write_ioadl_len =
5199 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5200 } else if (qc->dma_dir == DMA_FROM_DEVICE) {
5201 ioadl_flags = IPR_IOADL_FLAGS_READ;
5202 ioarcb->read_data_transfer_length = cpu_to_be32(len);
5203 ioarcb->read_ioadl_len =
5204 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5207 ata_for_each_sg(sg, qc) {
5208 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
5209 ioadl->address = cpu_to_be32(sg_dma_address(sg));
5210 if (ata_sg_is_last(sg, qc))
5211 ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5218 * ipr_qc_issue - Issue a SATA qc to a device
5219 * @qc: queued command
5224 static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc)
5226 struct ata_port *ap = qc->ap;
5227 struct ipr_sata_port *sata_port = ap->private_data;
5228 struct ipr_resource_entry *res = sata_port->res;
5229 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5230 struct ipr_cmnd *ipr_cmd;
5231 struct ipr_ioarcb *ioarcb;
5232 struct ipr_ioarcb_ata_regs *regs;
5234 if (unlikely(!ioa_cfg->allow_cmds || ioa_cfg->ioa_is_dead))
5235 return AC_ERR_SYSTEM;
5237 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5238 ioarcb = &ipr_cmd->ioarcb;
5239 regs = &ioarcb->add_data.u.regs;
5241 memset(&ioarcb->add_data, 0, sizeof(ioarcb->add_data));
5242 ioarcb->add_cmd_parms_len = cpu_to_be32(sizeof(ioarcb->add_data.u.regs));
5244 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
5246 ipr_cmd->done = ipr_sata_done;
5247 ipr_cmd->ioarcb.res_handle = res->cfgte.res_handle;
5248 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU;
5249 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
5250 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5251 ipr_cmd->dma_use_sg = qc->pad_len ? qc->n_elem + 1 : qc->n_elem;
5253 ipr_build_ata_ioadl(ipr_cmd, qc);
5254 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
5255 ipr_copy_sata_tf(regs, &qc->tf);
5256 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN);
5257 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_PHYS_LOC(res->cfgte.res_addr));
5259 switch (qc->tf.protocol) {
5260 case ATA_PROT_NODATA:
5265 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
5268 case ATA_PROT_ATAPI:
5269 case ATA_PROT_ATAPI_NODATA:
5270 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
5273 case ATA_PROT_ATAPI_DMA:
5274 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
5275 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
5280 return AC_ERR_INVALID;
5284 writel(be32_to_cpu(ioarcb->ioarcb_host_pci_addr),
5285 ioa_cfg->regs.ioarrin_reg);
5290 * ipr_ata_check_status - Return last ATA status
5296 static u8 ipr_ata_check_status(struct ata_port *ap)
5298 struct ipr_sata_port *sata_port = ap->private_data;
5299 return sata_port->ioasa.status;
5303 * ipr_ata_check_altstatus - Return last ATA altstatus
5309 static u8 ipr_ata_check_altstatus(struct ata_port *ap)
5311 struct ipr_sata_port *sata_port = ap->private_data;
5312 return sata_port->ioasa.alt_status;
5315 static struct ata_port_operations ipr_sata_ops = {
5316 .port_disable = ata_port_disable,
5317 .check_status = ipr_ata_check_status,
5318 .check_altstatus = ipr_ata_check_altstatus,
5319 .dev_select = ata_noop_dev_select,
5320 .phy_reset = ipr_ata_phy_reset,
5321 .post_internal_cmd = ipr_ata_post_internal,
5322 .tf_read = ipr_tf_read,
5323 .qc_prep = ata_noop_qc_prep,
5324 .qc_issue = ipr_qc_issue,
5325 .port_start = ata_sas_port_start,
5326 .port_stop = ata_sas_port_stop
5329 static struct ata_port_info sata_port_info = {
5330 .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | ATA_FLAG_SATA_RESET |
5331 ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA,
5332 .pio_mask = 0x10, /* pio4 */
5334 .udma_mask = 0x7f, /* udma0-6 */
5335 .port_ops = &ipr_sata_ops
5338 #ifdef CONFIG_PPC_PSERIES
5339 static const u16 ipr_blocked_processors[] = {
5351 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware
5352 * @ioa_cfg: ioa cfg struct
5354 * Adapters that use Gemstone revision < 3.1 do not work reliably on
5355 * certain pSeries hardware. This function determines if the given
5356 * adapter is in one of these confgurations or not.
5359 * 1 if adapter is not supported / 0 if adapter is supported
5361 static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
5366 if (ioa_cfg->type == 0x5702) {
5367 if (pci_read_config_byte(ioa_cfg->pdev, PCI_REVISION_ID,
5368 &rev_id) == PCIBIOS_SUCCESSFUL) {
5370 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){
5371 if (__is_processor(ipr_blocked_processors[i]))
5380 #define ipr_invalid_adapter(ioa_cfg) 0
5384 * ipr_ioa_bringdown_done - IOA bring down completion.
5385 * @ipr_cmd: ipr command struct
5387 * This function processes the completion of an adapter bring down.
5388 * It wakes any reset sleepers.
5393 static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd)
5395 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5398 ioa_cfg->in_reset_reload = 0;
5399 ioa_cfg->reset_retries = 0;
5400 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5401 wake_up_all(&ioa_cfg->reset_wait_q);
5403 spin_unlock_irq(ioa_cfg->host->host_lock);
5404 scsi_unblock_requests(ioa_cfg->host);
5405 spin_lock_irq(ioa_cfg->host->host_lock);
5408 return IPR_RC_JOB_RETURN;
5412 * ipr_ioa_reset_done - IOA reset completion.
5413 * @ipr_cmd: ipr command struct
5415 * This function processes the completion of an adapter reset.
5416 * It schedules any necessary mid-layer add/removes and
5417 * wakes any reset sleepers.
5422 static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
5424 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5425 struct ipr_resource_entry *res;
5426 struct ipr_hostrcb *hostrcb, *temp;
5430 ioa_cfg->in_reset_reload = 0;
5431 ioa_cfg->allow_cmds = 1;
5432 ioa_cfg->reset_cmd = NULL;
5433 ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
5435 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
5436 if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) {
5441 schedule_work(&ioa_cfg->work_q);
5443 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) {
5444 list_del(&hostrcb->queue);
5445 if (i++ < IPR_NUM_LOG_HCAMS)
5446 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
5448 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
5451 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS);
5452 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n");
5454 ioa_cfg->reset_retries = 0;
5455 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5456 wake_up_all(&ioa_cfg->reset_wait_q);
5458 spin_unlock_irq(ioa_cfg->host->host_lock);
5459 scsi_unblock_requests(ioa_cfg->host);
5460 spin_lock_irq(ioa_cfg->host->host_lock);
5462 if (!ioa_cfg->allow_cmds)
5463 scsi_block_requests(ioa_cfg->host);
5466 return IPR_RC_JOB_RETURN;
5470 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer
5471 * @supported_dev: supported device struct
5472 * @vpids: vendor product id struct
5477 static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev,
5478 struct ipr_std_inq_vpids *vpids)
5480 memset(supported_dev, 0, sizeof(struct ipr_supported_device));
5481 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids));
5482 supported_dev->num_records = 1;
5483 supported_dev->data_length =
5484 cpu_to_be16(sizeof(struct ipr_supported_device));
5485 supported_dev->reserved = 0;
5489 * ipr_set_supported_devs - Send Set Supported Devices for a device
5490 * @ipr_cmd: ipr command struct
5492 * This function send a Set Supported Devices to the adapter
5495 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
5497 static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
5499 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5500 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev;
5501 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
5502 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5503 struct ipr_resource_entry *res = ipr_cmd->u.res;
5505 ipr_cmd->job_step = ipr_ioa_reset_done;
5507 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
5508 if (!ipr_is_scsi_disk(res))
5511 ipr_cmd->u.res = res;
5512 ipr_set_sup_dev_dflt(supp_dev, &res->cfgte.std_inq_data.vpids);
5514 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
5515 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5516 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
5518 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES;
5519 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff;
5520 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff;
5522 ioadl->flags_and_data_len = cpu_to_be32(IPR_IOADL_FLAGS_WRITE_LAST |
5523 sizeof(struct ipr_supported_device));
5524 ioadl->address = cpu_to_be32(ioa_cfg->vpd_cbs_dma +
5525 offsetof(struct ipr_misc_cbs, supp_dev));
5526 ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
5527 ioarcb->write_data_transfer_length =
5528 cpu_to_be32(sizeof(struct ipr_supported_device));
5530 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
5531 IPR_SET_SUP_DEVICE_TIMEOUT);
5533 ipr_cmd->job_step = ipr_set_supported_devs;
5534 return IPR_RC_JOB_RETURN;
5537 return IPR_RC_JOB_CONTINUE;
5541 * ipr_setup_write_cache - Disable write cache if needed
5542 * @ipr_cmd: ipr command struct
5544 * This function sets up adapters write cache to desired setting
5547 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
5549 static int ipr_setup_write_cache(struct ipr_cmnd *ipr_cmd)
5551 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5553 ipr_cmd->job_step = ipr_set_supported_devs;
5554 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
5555 struct ipr_resource_entry, queue);
5557 if (ioa_cfg->cache_state != CACHE_DISABLED)
5558 return IPR_RC_JOB_CONTINUE;
5560 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
5561 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
5562 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
5563 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL;
5565 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
5567 return IPR_RC_JOB_RETURN;
5571 * ipr_get_mode_page - Locate specified mode page
5572 * @mode_pages: mode page buffer
5573 * @page_code: page code to find
5574 * @len: minimum required length for mode page
5577 * pointer to mode page / NULL on failure
5579 static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages,
5580 u32 page_code, u32 len)
5582 struct ipr_mode_page_hdr *mode_hdr;
5586 if (!mode_pages || (mode_pages->hdr.length == 0))
5589 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len;
5590 mode_hdr = (struct ipr_mode_page_hdr *)
5591 (mode_pages->data + mode_pages->hdr.block_desc_len);
5594 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) {
5595 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr)))
5599 page_length = (sizeof(struct ipr_mode_page_hdr) +
5600 mode_hdr->page_length);
5601 length -= page_length;
5602 mode_hdr = (struct ipr_mode_page_hdr *)
5603 ((unsigned long)mode_hdr + page_length);
5610 * ipr_check_term_power - Check for term power errors
5611 * @ioa_cfg: ioa config struct
5612 * @mode_pages: IOAFP mode pages buffer
5614 * Check the IOAFP's mode page 28 for term power errors
5619 static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg,
5620 struct ipr_mode_pages *mode_pages)
5624 struct ipr_dev_bus_entry *bus;
5625 struct ipr_mode_page28 *mode_page;
5627 mode_page = ipr_get_mode_page(mode_pages, 0x28,
5628 sizeof(struct ipr_mode_page28));
5630 entry_length = mode_page->entry_length;
5632 bus = mode_page->bus;
5634 for (i = 0; i < mode_page->num_entries; i++) {
5635 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) {
5636 dev_err(&ioa_cfg->pdev->dev,
5637 "Term power is absent on scsi bus %d\n",
5641 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length);
5646 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table
5647 * @ioa_cfg: ioa config struct
5649 * Looks through the config table checking for SES devices. If
5650 * the SES device is in the SES table indicating a maximum SCSI
5651 * bus speed, the speed is limited for the bus.
5656 static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg)
5661 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
5662 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i,
5663 ioa_cfg->bus_attr[i].bus_width);
5665 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate)
5666 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate;
5671 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28
5672 * @ioa_cfg: ioa config struct
5673 * @mode_pages: mode page 28 buffer
5675 * Updates mode page 28 based on driver configuration
5680 static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg,
5681 struct ipr_mode_pages *mode_pages)
5683 int i, entry_length;
5684 struct ipr_dev_bus_entry *bus;
5685 struct ipr_bus_attributes *bus_attr;
5686 struct ipr_mode_page28 *mode_page;
5688 mode_page = ipr_get_mode_page(mode_pages, 0x28,
5689 sizeof(struct ipr_mode_page28));
5691 entry_length = mode_page->entry_length;
5693 /* Loop for each device bus entry */
5694 for (i = 0, bus = mode_page->bus;
5695 i < mode_page->num_entries;
5696 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) {
5697 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) {
5698 dev_err(&ioa_cfg->pdev->dev,
5699 "Invalid resource address reported: 0x%08X\n",
5700 IPR_GET_PHYS_LOC(bus->res_addr));
5704 bus_attr = &ioa_cfg->bus_attr[i];
5705 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY;
5706 bus->bus_width = bus_attr->bus_width;
5707 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate);
5708 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK;
5709 if (bus_attr->qas_enabled)
5710 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS;
5712 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS;
5717 * ipr_build_mode_select - Build a mode select command
5718 * @ipr_cmd: ipr command struct
5719 * @res_handle: resource handle to send command to
5720 * @parm: Byte 2 of Mode Sense command
5721 * @dma_addr: DMA buffer address
5722 * @xfer_len: data transfer length
5727 static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd,
5728 __be32 res_handle, u8 parm, u32 dma_addr,
5731 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
5732 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5734 ioarcb->res_handle = res_handle;
5735 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
5736 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5737 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT;
5738 ioarcb->cmd_pkt.cdb[1] = parm;
5739 ioarcb->cmd_pkt.cdb[4] = xfer_len;
5741 ioadl->flags_and_data_len =
5742 cpu_to_be32(IPR_IOADL_FLAGS_WRITE_LAST | xfer_len);
5743 ioadl->address = cpu_to_be32(dma_addr);
5744 ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
5745 ioarcb->write_data_transfer_length = cpu_to_be32(xfer_len);
5749 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA
5750 * @ipr_cmd: ipr command struct
5752 * This function sets up the SCSI bus attributes and sends
5753 * a Mode Select for Page 28 to activate them.
5758 static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
5760 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5761 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
5765 ipr_scsi_bus_speed_limit(ioa_cfg);
5766 ipr_check_term_power(ioa_cfg, mode_pages);
5767 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages);
5768 length = mode_pages->hdr.length + 1;
5769 mode_pages->hdr.length = 0;
5771 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
5772 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
5775 ipr_cmd->job_step = ipr_setup_write_cache;
5776 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
5779 return IPR_RC_JOB_RETURN;
5783 * ipr_build_mode_sense - Builds a mode sense command
5784 * @ipr_cmd: ipr command struct
5785 * @res: resource entry struct
5786 * @parm: Byte 2 of mode sense command
5787 * @dma_addr: DMA address of mode sense buffer
5788 * @xfer_len: Size of DMA buffer
5793 static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
5795 u8 parm, u32 dma_addr, u8 xfer_len)
5797 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
5798 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5800 ioarcb->res_handle = res_handle;
5801 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE;
5802 ioarcb->cmd_pkt.cdb[2] = parm;
5803 ioarcb->cmd_pkt.cdb[4] = xfer_len;
5804 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
5806 ioadl->flags_and_data_len =
5807 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | xfer_len);
5808 ioadl->address = cpu_to_be32(dma_addr);
5809 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
5810 ioarcb->read_data_transfer_length = cpu_to_be32(xfer_len);
5814 * ipr_reset_cmd_failed - Handle failure of IOA reset command
5815 * @ipr_cmd: ipr command struct
5817 * This function handles the failure of an IOA bringup command.
5822 static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
5824 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5825 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
5827 dev_err(&ioa_cfg->pdev->dev,
5828 "0x%02X failed with IOASC: 0x%08X\n",
5829 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
5831 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5832 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5833 return IPR_RC_JOB_RETURN;
5837 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
5838 * @ipr_cmd: ipr command struct
5840 * This function handles the failure of a Mode Sense to the IOAFP.
5841 * Some adapters do not handle all mode pages.
5844 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
5846 static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
5848 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
5850 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
5851 ipr_cmd->job_step = ipr_setup_write_cache;
5852 return IPR_RC_JOB_CONTINUE;
5855 return ipr_reset_cmd_failed(ipr_cmd);
5859 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
5860 * @ipr_cmd: ipr command struct
5862 * This function send a Page 28 mode sense to the IOA to
5863 * retrieve SCSI bus attributes.
5868 static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
5870 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5873 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
5874 0x28, ioa_cfg->vpd_cbs_dma +
5875 offsetof(struct ipr_misc_cbs, mode_pages),
5876 sizeof(struct ipr_mode_pages));
5878 ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
5879 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed;
5881 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
5884 return IPR_RC_JOB_RETURN;
5888 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA
5889 * @ipr_cmd: ipr command struct
5891 * This function enables dual IOA RAID support if possible.
5896 static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd)
5898 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5899 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
5900 struct ipr_mode_page24 *mode_page;
5904 mode_page = ipr_get_mode_page(mode_pages, 0x24,
5905 sizeof(struct ipr_mode_page24));
5908 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF;
5910 length = mode_pages->hdr.length + 1;
5911 mode_pages->hdr.length = 0;
5913 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
5914 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
5917 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
5918 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
5921 return IPR_RC_JOB_RETURN;
5925 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense
5926 * @ipr_cmd: ipr command struct
5928 * This function handles the failure of a Mode Sense to the IOAFP.
5929 * Some adapters do not handle all mode pages.
5932 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
5934 static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd)
5936 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
5938 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
5939 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
5940 return IPR_RC_JOB_CONTINUE;
5943 return ipr_reset_cmd_failed(ipr_cmd);
5947 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA
5948 * @ipr_cmd: ipr command struct
5950 * This function send a mode sense to the IOA to retrieve
5951 * the IOA Advanced Function Control mode page.
5956 static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd)
5958 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5961 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
5962 0x24, ioa_cfg->vpd_cbs_dma +
5963 offsetof(struct ipr_misc_cbs, mode_pages),
5964 sizeof(struct ipr_mode_pages));
5966 ipr_cmd->job_step = ipr_ioafp_mode_select_page24;
5967 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed;
5969 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
5972 return IPR_RC_JOB_RETURN;
5976 * ipr_init_res_table - Initialize the resource table
5977 * @ipr_cmd: ipr command struct
5979 * This function looks through the existing resource table, comparing
5980 * it with the config table. This function will take care of old/new
5981 * devices and schedule adding/removing them from the mid-layer
5985 * IPR_RC_JOB_CONTINUE
5987 static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
5989 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5990 struct ipr_resource_entry *res, *temp;
5991 struct ipr_config_table_entry *cfgte;
5996 if (ioa_cfg->cfg_table->hdr.flags & IPR_UCODE_DOWNLOAD_REQ)
5997 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n");
5999 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue)
6000 list_move_tail(&res->queue, &old_res);
6002 for (i = 0; i < ioa_cfg->cfg_table->hdr.num_entries; i++) {
6003 cfgte = &ioa_cfg->cfg_table->dev[i];
6006 list_for_each_entry_safe(res, temp, &old_res, queue) {
6007 if (!memcmp(&res->cfgte.res_addr,
6008 &cfgte->res_addr, sizeof(cfgte->res_addr))) {
6009 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
6016 if (list_empty(&ioa_cfg->free_res_q)) {
6017 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n");
6022 res = list_entry(ioa_cfg->free_res_q.next,
6023 struct ipr_resource_entry, queue);
6024 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
6025 ipr_init_res_entry(res);
6030 memcpy(&res->cfgte, cfgte, sizeof(struct ipr_config_table_entry));
6033 list_for_each_entry_safe(res, temp, &old_res, queue) {
6035 res->del_from_ml = 1;
6036 res->cfgte.res_handle = IPR_INVALID_RES_HANDLE;
6037 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
6039 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
6043 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
6044 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24;
6046 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
6049 return IPR_RC_JOB_CONTINUE;
6053 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter.
6054 * @ipr_cmd: ipr command struct
6056 * This function sends a Query IOA Configuration command
6057 * to the adapter to retrieve the IOA configuration table.
6062 static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd)
6064 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6065 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6066 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
6067 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
6068 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
6071 if (cap->cap & IPR_CAP_DUAL_IOA_RAID)
6072 ioa_cfg->dual_raid = 1;
6073 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n",
6074 ucode_vpd->major_release, ucode_vpd->card_type,
6075 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]);
6076 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6077 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6079 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG;
6080 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_config_table) >> 8) & 0xff;
6081 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_config_table) & 0xff;
6083 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
6084 ioarcb->read_data_transfer_length =
6085 cpu_to_be32(sizeof(struct ipr_config_table));
6087 ioadl->address = cpu_to_be32(ioa_cfg->cfg_table_dma);
6088 ioadl->flags_and_data_len =
6089 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | sizeof(struct ipr_config_table));
6091 ipr_cmd->job_step = ipr_init_res_table;
6093 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6096 return IPR_RC_JOB_RETURN;
6100 * ipr_ioafp_inquiry - Send an Inquiry to the adapter.
6101 * @ipr_cmd: ipr command struct
6103 * This utility function sends an inquiry to the adapter.
6108 static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
6109 u32 dma_addr, u8 xfer_len)
6111 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6112 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
6115 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6116 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6118 ioarcb->cmd_pkt.cdb[0] = INQUIRY;
6119 ioarcb->cmd_pkt.cdb[1] = flags;
6120 ioarcb->cmd_pkt.cdb[2] = page;
6121 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6123 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
6124 ioarcb->read_data_transfer_length = cpu_to_be32(xfer_len);
6126 ioadl->address = cpu_to_be32(dma_addr);
6127 ioadl->flags_and_data_len =
6128 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | xfer_len);
6130 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6135 * ipr_inquiry_page_supported - Is the given inquiry page supported
6136 * @page0: inquiry page 0 buffer
6139 * This function determines if the specified inquiry page is supported.
6142 * 1 if page is supported / 0 if not
6144 static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page)
6148 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++)
6149 if (page0->page[i] == page)
6156 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter.
6157 * @ipr_cmd: ipr command struct
6159 * This function sends a Page 0xD0 inquiry to the adapter
6160 * to retrieve adapter capabilities.
6163 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6165 static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd)
6167 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6168 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
6169 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
6172 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
6173 memset(cap, 0, sizeof(*cap));
6175 if (ipr_inquiry_page_supported(page0, 0xD0)) {
6176 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0,
6177 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap),
6178 sizeof(struct ipr_inquiry_cap));
6179 return IPR_RC_JOB_RETURN;
6183 return IPR_RC_JOB_CONTINUE;
6187 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
6188 * @ipr_cmd: ipr command struct
6190 * This function sends a Page 3 inquiry to the adapter
6191 * to retrieve software VPD information.
6194 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6196 static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
6198 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6199 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
6203 if (!ipr_inquiry_page_supported(page0, 1))
6204 ioa_cfg->cache_state = CACHE_NONE;
6206 ipr_cmd->job_step = ipr_ioafp_cap_inquiry;
6208 ipr_ioafp_inquiry(ipr_cmd, 1, 3,
6209 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
6210 sizeof(struct ipr_inquiry_page3));
6213 return IPR_RC_JOB_RETURN;
6217 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
6218 * @ipr_cmd: ipr command struct
6220 * This function sends a Page 0 inquiry to the adapter
6221 * to retrieve supported inquiry pages.
6224 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6226 static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
6228 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6233 /* Grab the type out of the VPD and store it away */
6234 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4);
6236 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
6238 ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
6240 ipr_ioafp_inquiry(ipr_cmd, 1, 0,
6241 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data),
6242 sizeof(struct ipr_inquiry_page0));
6245 return IPR_RC_JOB_RETURN;
6249 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter.
6250 * @ipr_cmd: ipr command struct
6252 * This function sends a standard inquiry to the adapter.
6257 static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
6259 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6262 ipr_cmd->job_step = ipr_ioafp_page0_inquiry;
6264 ipr_ioafp_inquiry(ipr_cmd, 0, 0,
6265 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
6266 sizeof(struct ipr_ioa_vpd));
6269 return IPR_RC_JOB_RETURN;
6273 * ipr_ioafp_indentify_hrrq - Send Identify Host RRQ.
6274 * @ipr_cmd: ipr command struct
6276 * This function send an Identify Host Request Response Queue
6277 * command to establish the HRRQ with the adapter.
6282 static int ipr_ioafp_indentify_hrrq(struct ipr_cmnd *ipr_cmd)
6284 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6285 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6288 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
6290 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q;
6291 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6293 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6294 ioarcb->cmd_pkt.cdb[2] =
6295 ((u32) ioa_cfg->host_rrq_dma >> 24) & 0xff;
6296 ioarcb->cmd_pkt.cdb[3] =
6297 ((u32) ioa_cfg->host_rrq_dma >> 16) & 0xff;
6298 ioarcb->cmd_pkt.cdb[4] =
6299 ((u32) ioa_cfg->host_rrq_dma >> 8) & 0xff;
6300 ioarcb->cmd_pkt.cdb[5] =
6301 ((u32) ioa_cfg->host_rrq_dma) & 0xff;
6302 ioarcb->cmd_pkt.cdb[7] =
6303 ((sizeof(u32) * IPR_NUM_CMD_BLKS) >> 8) & 0xff;
6304 ioarcb->cmd_pkt.cdb[8] =
6305 (sizeof(u32) * IPR_NUM_CMD_BLKS) & 0xff;
6307 ipr_cmd->job_step = ipr_ioafp_std_inquiry;
6309 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6312 return IPR_RC_JOB_RETURN;
6316 * ipr_reset_timer_done - Adapter reset timer function
6317 * @ipr_cmd: ipr command struct
6319 * Description: This function is used in adapter reset processing
6320 * for timing events. If the reset_cmd pointer in the IOA
6321 * config struct is not this adapter's we are doing nested
6322 * resets and fail_all_ops will take care of freeing the
6328 static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd)
6330 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6331 unsigned long lock_flags = 0;
6333 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
6335 if (ioa_cfg->reset_cmd == ipr_cmd) {
6336 list_del(&ipr_cmd->queue);
6337 ipr_cmd->done(ipr_cmd);
6340 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
6344 * ipr_reset_start_timer - Start a timer for adapter reset job
6345 * @ipr_cmd: ipr command struct
6346 * @timeout: timeout value
6348 * Description: This function is used in adapter reset processing
6349 * for timing events. If the reset_cmd pointer in the IOA
6350 * config struct is not this adapter's we are doing nested
6351 * resets and fail_all_ops will take care of freeing the
6357 static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
6358 unsigned long timeout)
6360 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
6361 ipr_cmd->done = ipr_reset_ioa_job;
6363 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
6364 ipr_cmd->timer.expires = jiffies + timeout;
6365 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done;
6366 add_timer(&ipr_cmd->timer);
6370 * ipr_init_ioa_mem - Initialize ioa_cfg control block
6371 * @ioa_cfg: ioa cfg struct
6376 static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg)
6378 memset(ioa_cfg->host_rrq, 0, sizeof(u32) * IPR_NUM_CMD_BLKS);
6380 /* Initialize Host RRQ pointers */
6381 ioa_cfg->hrrq_start = ioa_cfg->host_rrq;
6382 ioa_cfg->hrrq_end = &ioa_cfg->host_rrq[IPR_NUM_CMD_BLKS - 1];
6383 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
6384 ioa_cfg->toggle_bit = 1;
6386 /* Zero out config table */
6387 memset(ioa_cfg->cfg_table, 0, sizeof(struct ipr_config_table));
6391 * ipr_reset_enable_ioa - Enable the IOA following a reset.
6392 * @ipr_cmd: ipr command struct
6394 * This function reinitializes some control blocks and
6395 * enables destructive diagnostics on the adapter.
6400 static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
6402 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6403 volatile u32 int_reg;
6406 ipr_cmd->job_step = ipr_ioafp_indentify_hrrq;
6407 ipr_init_ioa_mem(ioa_cfg);
6409 ioa_cfg->allow_interrupts = 1;
6410 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
6412 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
6413 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED),
6414 ioa_cfg->regs.clr_interrupt_mask_reg);
6415 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
6416 return IPR_RC_JOB_CONTINUE;
6419 /* Enable destructive diagnostics on IOA */
6420 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg);
6422 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg);
6423 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
6425 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n");
6427 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
6428 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
6429 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
6430 ipr_cmd->done = ipr_reset_ioa_job;
6431 add_timer(&ipr_cmd->timer);
6432 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
6435 return IPR_RC_JOB_RETURN;
6439 * ipr_reset_wait_for_dump - Wait for a dump to timeout.
6440 * @ipr_cmd: ipr command struct
6442 * This function is invoked when an adapter dump has run out
6443 * of processing time.
6446 * IPR_RC_JOB_CONTINUE
6448 static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd)
6450 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6452 if (ioa_cfg->sdt_state == GET_DUMP)
6453 ioa_cfg->sdt_state = ABORT_DUMP;
6455 ipr_cmd->job_step = ipr_reset_alert;
6457 return IPR_RC_JOB_CONTINUE;
6461 * ipr_unit_check_no_data - Log a unit check/no data error log
6462 * @ioa_cfg: ioa config struct
6464 * Logs an error indicating the adapter unit checked, but for some
6465 * reason, we were unable to fetch the unit check buffer.
6470 static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg)
6472 ioa_cfg->errors_logged++;
6473 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n");
6477 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA
6478 * @ioa_cfg: ioa config struct
6480 * Fetches the unit check buffer from the adapter by clocking the data
6481 * through the mailbox register.
6486 static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
6488 unsigned long mailbox;
6489 struct ipr_hostrcb *hostrcb;
6490 struct ipr_uc_sdt sdt;
6494 mailbox = readl(ioa_cfg->ioa_mailbox);
6496 if (!ipr_sdt_is_fmt2(mailbox)) {
6497 ipr_unit_check_no_data(ioa_cfg);
6501 memset(&sdt, 0, sizeof(struct ipr_uc_sdt));
6502 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt,
6503 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32));
6505 if (rc || (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE) ||
6506 !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY)) {
6507 ipr_unit_check_no_data(ioa_cfg);
6511 /* Find length of the first sdt entry (UC buffer) */
6512 length = (be32_to_cpu(sdt.entry[0].end_offset) -
6513 be32_to_cpu(sdt.entry[0].bar_str_offset)) & IPR_FMT2_MBX_ADDR_MASK;
6515 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next,
6516 struct ipr_hostrcb, queue);
6517 list_del(&hostrcb->queue);
6518 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam));
6520 rc = ipr_get_ldump_data_section(ioa_cfg,
6521 be32_to_cpu(sdt.entry[0].bar_str_offset),
6522 (__be32 *)&hostrcb->hcam,
6523 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32));
6526 ipr_handle_log_data(ioa_cfg, hostrcb);
6527 ioasc = be32_to_cpu(hostrcb->hcam.u.error.failing_dev_ioasc);
6528 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED &&
6529 ioa_cfg->sdt_state == GET_DUMP)
6530 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
6532 ipr_unit_check_no_data(ioa_cfg);
6534 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
6538 * ipr_reset_restore_cfg_space - Restore PCI config space.
6539 * @ipr_cmd: ipr command struct
6541 * Description: This function restores the saved PCI config space of
6542 * the adapter, fails all outstanding ops back to the callers, and
6543 * fetches the dump/unit check if applicable to this reset.
6546 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6548 static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
6550 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6554 rc = pci_restore_state(ioa_cfg->pdev);
6556 if (rc != PCIBIOS_SUCCESSFUL) {
6557 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
6558 return IPR_RC_JOB_CONTINUE;
6561 if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
6562 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
6563 return IPR_RC_JOB_CONTINUE;
6566 ipr_fail_all_ops(ioa_cfg);
6568 if (ioa_cfg->ioa_unit_checked) {
6569 ioa_cfg->ioa_unit_checked = 0;
6570 ipr_get_unit_check_buffer(ioa_cfg);
6571 ipr_cmd->job_step = ipr_reset_alert;
6572 ipr_reset_start_timer(ipr_cmd, 0);
6573 return IPR_RC_JOB_RETURN;
6576 if (ioa_cfg->in_ioa_bringdown) {
6577 ipr_cmd->job_step = ipr_ioa_bringdown_done;
6579 ipr_cmd->job_step = ipr_reset_enable_ioa;
6581 if (GET_DUMP == ioa_cfg->sdt_state) {
6582 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_TIMEOUT);
6583 ipr_cmd->job_step = ipr_reset_wait_for_dump;
6584 schedule_work(&ioa_cfg->work_q);
6585 return IPR_RC_JOB_RETURN;
6590 return IPR_RC_JOB_CONTINUE;
6594 * ipr_reset_bist_done - BIST has completed on the adapter.
6595 * @ipr_cmd: ipr command struct
6597 * Description: Unblock config space and resume the reset process.
6600 * IPR_RC_JOB_CONTINUE
6602 static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd)
6605 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev);
6606 ipr_cmd->job_step = ipr_reset_restore_cfg_space;
6608 return IPR_RC_JOB_CONTINUE;
6612 * ipr_reset_start_bist - Run BIST on the adapter.
6613 * @ipr_cmd: ipr command struct
6615 * Description: This function runs BIST on the adapter, then delays 2 seconds.
6618 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6620 static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
6622 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6626 pci_block_user_cfg_access(ioa_cfg->pdev);
6627 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START);
6629 if (rc != PCIBIOS_SUCCESSFUL) {
6630 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev);
6631 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
6632 rc = IPR_RC_JOB_CONTINUE;
6634 ipr_cmd->job_step = ipr_reset_bist_done;
6635 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
6636 rc = IPR_RC_JOB_RETURN;
6644 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter
6645 * @ipr_cmd: ipr command struct
6647 * Description: This clears PCI reset to the adapter and delays two seconds.
6652 static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd)
6655 pci_set_pcie_reset_state(ipr_cmd->ioa_cfg->pdev, pcie_deassert_reset);
6656 ipr_cmd->job_step = ipr_reset_bist_done;
6657 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
6659 return IPR_RC_JOB_RETURN;
6663 * ipr_reset_slot_reset - Reset the PCI slot of the adapter.
6664 * @ipr_cmd: ipr command struct
6666 * Description: This asserts PCI reset to the adapter.
6671 static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd)
6673 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6674 struct pci_dev *pdev = ioa_cfg->pdev;
6677 pci_block_user_cfg_access(pdev);
6678 pci_set_pcie_reset_state(pdev, pcie_warm_reset);
6679 ipr_cmd->job_step = ipr_reset_slot_reset_done;
6680 ipr_reset_start_timer(ipr_cmd, IPR_PCI_RESET_TIMEOUT);
6682 return IPR_RC_JOB_RETURN;
6686 * ipr_reset_allowed - Query whether or not IOA can be reset
6687 * @ioa_cfg: ioa config struct
6690 * 0 if reset not allowed / non-zero if reset is allowed
6692 static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg)
6694 volatile u32 temp_reg;
6696 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
6697 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0);
6701 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA.
6702 * @ipr_cmd: ipr command struct
6704 * Description: This function waits for adapter permission to run BIST,
6705 * then runs BIST. If the adapter does not give permission after a
6706 * reasonable time, we will reset the adapter anyway. The impact of
6707 * resetting the adapter without warning the adapter is the risk of
6708 * losing the persistent error log on the adapter. If the adapter is
6709 * reset while it is writing to the flash on the adapter, the flash
6710 * segment will have bad ECC and be zeroed.
6713 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6715 static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd)
6717 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6718 int rc = IPR_RC_JOB_RETURN;
6720 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) {
6721 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
6722 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
6724 ipr_cmd->job_step = ioa_cfg->reset;
6725 rc = IPR_RC_JOB_CONTINUE;
6732 * ipr_reset_alert_part2 - Alert the adapter of a pending reset
6733 * @ipr_cmd: ipr command struct
6735 * Description: This function alerts the adapter that it will be reset.
6736 * If memory space is not currently enabled, proceed directly
6737 * to running BIST on the adapter. The timer must always be started
6738 * so we guarantee we do not run BIST from ipr_isr.
6743 static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd)
6745 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6750 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg);
6752 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) {
6753 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
6754 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg);
6755 ipr_cmd->job_step = ipr_reset_wait_to_start_bist;
6757 ipr_cmd->job_step = ioa_cfg->reset;
6760 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
6761 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
6764 return IPR_RC_JOB_RETURN;
6768 * ipr_reset_ucode_download_done - Microcode download completion
6769 * @ipr_cmd: ipr command struct
6771 * Description: This function unmaps the microcode download buffer.
6774 * IPR_RC_JOB_CONTINUE
6776 static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd)
6778 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6779 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
6781 pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist,
6782 sglist->num_sg, DMA_TO_DEVICE);
6784 ipr_cmd->job_step = ipr_reset_alert;
6785 return IPR_RC_JOB_CONTINUE;
6789 * ipr_reset_ucode_download - Download microcode to the adapter
6790 * @ipr_cmd: ipr command struct
6792 * Description: This function checks to see if it there is microcode
6793 * to download to the adapter. If there is, a download is performed.
6796 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6798 static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
6800 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6801 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
6804 ipr_cmd->job_step = ipr_reset_alert;
6807 return IPR_RC_JOB_CONTINUE;
6809 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6810 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6811 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER;
6812 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE;
6813 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16;
6814 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
6815 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
6817 ipr_build_ucode_ioadl(ipr_cmd, sglist);
6818 ipr_cmd->job_step = ipr_reset_ucode_download_done;
6820 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
6821 IPR_WRITE_BUFFER_TIMEOUT);
6824 return IPR_RC_JOB_RETURN;
6828 * ipr_reset_shutdown_ioa - Shutdown the adapter
6829 * @ipr_cmd: ipr command struct
6831 * Description: This function issues an adapter shutdown of the
6832 * specified type to the specified adapter as part of the
6833 * adapter reset job.
6836 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6838 static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
6840 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6841 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type;
6842 unsigned long timeout;
6843 int rc = IPR_RC_JOB_CONTINUE;
6846 if (shutdown_type != IPR_SHUTDOWN_NONE && !ioa_cfg->ioa_is_dead) {
6847 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6848 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6849 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
6850 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type;
6852 if (shutdown_type == IPR_SHUTDOWN_NORMAL)
6853 timeout = IPR_SHUTDOWN_TIMEOUT;
6854 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL)
6855 timeout = IPR_INTERNAL_TIMEOUT;
6856 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
6857 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO;
6859 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT;
6861 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout);
6863 rc = IPR_RC_JOB_RETURN;
6864 ipr_cmd->job_step = ipr_reset_ucode_download;
6866 ipr_cmd->job_step = ipr_reset_alert;
6873 * ipr_reset_ioa_job - Adapter reset job
6874 * @ipr_cmd: ipr command struct
6876 * Description: This function is the job router for the adapter reset job.
6881 static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
6884 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6887 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
6889 if (ioa_cfg->reset_cmd != ipr_cmd) {
6891 * We are doing nested adapter resets and this is
6892 * not the current reset job.
6894 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6898 if (IPR_IOASC_SENSE_KEY(ioasc)) {
6899 rc = ipr_cmd->job_step_failed(ipr_cmd);
6900 if (rc == IPR_RC_JOB_RETURN)
6904 ipr_reinit_ipr_cmnd(ipr_cmd);
6905 ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
6906 rc = ipr_cmd->job_step(ipr_cmd);
6907 } while(rc == IPR_RC_JOB_CONTINUE);
6911 * _ipr_initiate_ioa_reset - Initiate an adapter reset
6912 * @ioa_cfg: ioa config struct
6913 * @job_step: first job step of reset job
6914 * @shutdown_type: shutdown type
6916 * Description: This function will initiate the reset of the given adapter
6917 * starting at the selected job step.
6918 * If the caller needs to wait on the completion of the reset,
6919 * the caller must sleep on the reset_wait_q.
6924 static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
6925 int (*job_step) (struct ipr_cmnd *),
6926 enum ipr_shutdown_type shutdown_type)
6928 struct ipr_cmnd *ipr_cmd;
6930 ioa_cfg->in_reset_reload = 1;
6931 ioa_cfg->allow_cmds = 0;
6932 scsi_block_requests(ioa_cfg->host);
6934 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
6935 ioa_cfg->reset_cmd = ipr_cmd;
6936 ipr_cmd->job_step = job_step;
6937 ipr_cmd->u.shutdown_type = shutdown_type;
6939 ipr_reset_ioa_job(ipr_cmd);
6943 * ipr_initiate_ioa_reset - Initiate an adapter reset
6944 * @ioa_cfg: ioa config struct
6945 * @shutdown_type: shutdown type
6947 * Description: This function will initiate the reset of the given adapter.
6948 * If the caller needs to wait on the completion of the reset,
6949 * the caller must sleep on the reset_wait_q.
6954 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
6955 enum ipr_shutdown_type shutdown_type)
6957 if (ioa_cfg->ioa_is_dead)
6960 if (ioa_cfg->in_reset_reload && ioa_cfg->sdt_state == GET_DUMP)
6961 ioa_cfg->sdt_state = ABORT_DUMP;
6963 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) {
6964 dev_err(&ioa_cfg->pdev->dev,
6965 "IOA taken offline - error recovery failed\n");
6967 ioa_cfg->reset_retries = 0;
6968 ioa_cfg->ioa_is_dead = 1;
6970 if (ioa_cfg->in_ioa_bringdown) {
6971 ioa_cfg->reset_cmd = NULL;
6972 ioa_cfg->in_reset_reload = 0;
6973 ipr_fail_all_ops(ioa_cfg);
6974 wake_up_all(&ioa_cfg->reset_wait_q);
6976 spin_unlock_irq(ioa_cfg->host->host_lock);
6977 scsi_unblock_requests(ioa_cfg->host);
6978 spin_lock_irq(ioa_cfg->host->host_lock);
6981 ioa_cfg->in_ioa_bringdown = 1;
6982 shutdown_type = IPR_SHUTDOWN_NONE;
6986 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa,
6991 * ipr_reset_freeze - Hold off all I/O activity
6992 * @ipr_cmd: ipr command struct
6994 * Description: If the PCI slot is frozen, hold off all I/O
6995 * activity; then, as soon as the slot is available again,
6996 * initiate an adapter reset.
6998 static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd)
7000 /* Disallow new interrupts, avoid loop */
7001 ipr_cmd->ioa_cfg->allow_interrupts = 0;
7002 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
7003 ipr_cmd->done = ipr_reset_ioa_job;
7004 return IPR_RC_JOB_RETURN;
7008 * ipr_pci_frozen - Called when slot has experienced a PCI bus error.
7009 * @pdev: PCI device struct
7011 * Description: This routine is called to tell us that the PCI bus
7012 * is down. Can't do anything here, except put the device driver
7013 * into a holding pattern, waiting for the PCI bus to come back.
7015 static void ipr_pci_frozen(struct pci_dev *pdev)
7017 unsigned long flags = 0;
7018 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7020 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
7021 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE);
7022 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
7026 * ipr_pci_slot_reset - Called when PCI slot has been reset.
7027 * @pdev: PCI device struct
7029 * Description: This routine is called by the pci error recovery
7030 * code after the PCI slot has been reset, just before we
7031 * should resume normal operations.
7033 static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev)
7035 unsigned long flags = 0;
7036 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7038 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
7039 if (ioa_cfg->needs_warm_reset)
7040 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7042 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space,
7044 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
7045 return PCI_ERS_RESULT_RECOVERED;
7049 * ipr_pci_perm_failure - Called when PCI slot is dead for good.
7050 * @pdev: PCI device struct
7052 * Description: This routine is called when the PCI bus has
7053 * permanently failed.
7055 static void ipr_pci_perm_failure(struct pci_dev *pdev)
7057 unsigned long flags = 0;
7058 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7060 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
7061 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
7062 ioa_cfg->sdt_state = ABORT_DUMP;
7063 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES;
7064 ioa_cfg->in_ioa_bringdown = 1;
7065 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7066 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
7070 * ipr_pci_error_detected - Called when a PCI error is detected.
7071 * @pdev: PCI device struct
7072 * @state: PCI channel state
7074 * Description: Called when a PCI error is detected.
7077 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
7079 static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
7080 pci_channel_state_t state)
7083 case pci_channel_io_frozen:
7084 ipr_pci_frozen(pdev);
7085 return PCI_ERS_RESULT_NEED_RESET;
7086 case pci_channel_io_perm_failure:
7087 ipr_pci_perm_failure(pdev);
7088 return PCI_ERS_RESULT_DISCONNECT;
7093 return PCI_ERS_RESULT_NEED_RESET;
7097 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..)
7098 * @ioa_cfg: ioa cfg struct
7100 * Description: This is the second phase of adapter intialization
7101 * This function takes care of initilizing the adapter to the point
7102 * where it can accept new commands.
7105 * 0 on sucess / -EIO on failure
7107 static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
7110 unsigned long host_lock_flags = 0;
7113 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7114 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
7115 if (ioa_cfg->needs_hard_reset) {
7116 ioa_cfg->needs_hard_reset = 0;
7117 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7119 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa,
7122 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7123 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
7124 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7126 if (ioa_cfg->ioa_is_dead) {
7128 } else if (ipr_invalid_adapter(ioa_cfg)) {
7132 dev_err(&ioa_cfg->pdev->dev,
7133 "Adapter not supported in this hardware configuration.\n");
7136 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7143 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter
7144 * @ioa_cfg: ioa config struct
7149 static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
7153 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
7154 if (ioa_cfg->ipr_cmnd_list[i])
7155 pci_pool_free(ioa_cfg->ipr_cmd_pool,
7156 ioa_cfg->ipr_cmnd_list[i],
7157 ioa_cfg->ipr_cmnd_list_dma[i]);
7159 ioa_cfg->ipr_cmnd_list[i] = NULL;
7162 if (ioa_cfg->ipr_cmd_pool)
7163 pci_pool_destroy (ioa_cfg->ipr_cmd_pool);
7165 ioa_cfg->ipr_cmd_pool = NULL;
7169 * ipr_free_mem - Frees memory allocated for an adapter
7170 * @ioa_cfg: ioa cfg struct
7175 static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg)
7179 kfree(ioa_cfg->res_entries);
7180 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs),
7181 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
7182 ipr_free_cmd_blks(ioa_cfg);
7183 pci_free_consistent(ioa_cfg->pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
7184 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
7185 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_config_table),
7187 ioa_cfg->cfg_table_dma);
7189 for (i = 0; i < IPR_NUM_HCAMS; i++) {
7190 pci_free_consistent(ioa_cfg->pdev,
7191 sizeof(struct ipr_hostrcb),
7192 ioa_cfg->hostrcb[i],
7193 ioa_cfg->hostrcb_dma[i]);
7196 ipr_free_dump(ioa_cfg);
7197 kfree(ioa_cfg->trace);
7201 * ipr_free_all_resources - Free all allocated resources for an adapter.
7202 * @ipr_cmd: ipr command struct
7204 * This function frees all allocated resources for the
7205 * specified adapter.
7210 static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
7212 struct pci_dev *pdev = ioa_cfg->pdev;
7215 free_irq(pdev->irq, ioa_cfg);
7216 iounmap(ioa_cfg->hdw_dma_regs);
7217 pci_release_regions(pdev);
7218 ipr_free_mem(ioa_cfg);
7219 scsi_host_put(ioa_cfg->host);
7220 pci_disable_device(pdev);
7225 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter
7226 * @ioa_cfg: ioa config struct
7229 * 0 on success / -ENOMEM on allocation failure
7231 static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
7233 struct ipr_cmnd *ipr_cmd;
7234 struct ipr_ioarcb *ioarcb;
7235 dma_addr_t dma_addr;
7238 ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev,
7239 sizeof(struct ipr_cmnd), 8, 0);
7241 if (!ioa_cfg->ipr_cmd_pool)
7244 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
7245 ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr);
7248 ipr_free_cmd_blks(ioa_cfg);
7252 memset(ipr_cmd, 0, sizeof(*ipr_cmd));
7253 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd;
7254 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr;
7256 ioarcb = &ipr_cmd->ioarcb;
7257 ioarcb->ioarcb_host_pci_addr = cpu_to_be32(dma_addr);
7258 ioarcb->host_response_handle = cpu_to_be32(i << 2);
7259 ioarcb->write_ioadl_addr =
7260 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioadl));
7261 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
7262 ioarcb->ioasa_host_pci_addr =
7263 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioasa));
7264 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa));
7265 ipr_cmd->cmd_index = i;
7266 ipr_cmd->ioa_cfg = ioa_cfg;
7267 ipr_cmd->sense_buffer_dma = dma_addr +
7268 offsetof(struct ipr_cmnd, sense_buffer);
7270 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
7277 * ipr_alloc_mem - Allocate memory for an adapter
7278 * @ioa_cfg: ioa config struct
7281 * 0 on success / non-zero for error
7283 static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
7285 struct pci_dev *pdev = ioa_cfg->pdev;
7286 int i, rc = -ENOMEM;
7289 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) *
7290 IPR_MAX_PHYSICAL_DEVS, GFP_KERNEL);
7292 if (!ioa_cfg->res_entries)
7295 for (i = 0; i < IPR_MAX_PHYSICAL_DEVS; i++)
7296 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
7298 ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev,
7299 sizeof(struct ipr_misc_cbs),
7300 &ioa_cfg->vpd_cbs_dma);
7302 if (!ioa_cfg->vpd_cbs)
7303 goto out_free_res_entries;
7305 if (ipr_alloc_cmd_blks(ioa_cfg))
7306 goto out_free_vpd_cbs;
7308 ioa_cfg->host_rrq = pci_alloc_consistent(ioa_cfg->pdev,
7309 sizeof(u32) * IPR_NUM_CMD_BLKS,
7310 &ioa_cfg->host_rrq_dma);
7312 if (!ioa_cfg->host_rrq)
7313 goto out_ipr_free_cmd_blocks;
7315 ioa_cfg->cfg_table = pci_alloc_consistent(ioa_cfg->pdev,
7316 sizeof(struct ipr_config_table),
7317 &ioa_cfg->cfg_table_dma);
7319 if (!ioa_cfg->cfg_table)
7320 goto out_free_host_rrq;
7322 for (i = 0; i < IPR_NUM_HCAMS; i++) {
7323 ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev,
7324 sizeof(struct ipr_hostrcb),
7325 &ioa_cfg->hostrcb_dma[i]);
7327 if (!ioa_cfg->hostrcb[i])
7328 goto out_free_hostrcb_dma;
7330 ioa_cfg->hostrcb[i]->hostrcb_dma =
7331 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam);
7332 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg;
7333 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
7336 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) *
7337 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL);
7339 if (!ioa_cfg->trace)
7340 goto out_free_hostrcb_dma;
7347 out_free_hostrcb_dma:
7349 pci_free_consistent(pdev, sizeof(struct ipr_hostrcb),
7350 ioa_cfg->hostrcb[i],
7351 ioa_cfg->hostrcb_dma[i]);
7353 pci_free_consistent(pdev, sizeof(struct ipr_config_table),
7354 ioa_cfg->cfg_table, ioa_cfg->cfg_table_dma);
7356 pci_free_consistent(pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
7357 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
7358 out_ipr_free_cmd_blocks:
7359 ipr_free_cmd_blks(ioa_cfg);
7361 pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs),
7362 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
7363 out_free_res_entries:
7364 kfree(ioa_cfg->res_entries);
7369 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values
7370 * @ioa_cfg: ioa config struct
7375 static void __devinit ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg)
7379 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
7380 ioa_cfg->bus_attr[i].bus = i;
7381 ioa_cfg->bus_attr[i].qas_enabled = 0;
7382 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH;
7383 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds))
7384 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed];
7386 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE;
7391 * ipr_init_ioa_cfg - Initialize IOA config struct
7392 * @ioa_cfg: ioa config struct
7393 * @host: scsi host struct
7394 * @pdev: PCI dev struct
7399 static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
7400 struct Scsi_Host *host, struct pci_dev *pdev)
7402 const struct ipr_interrupt_offsets *p;
7403 struct ipr_interrupts *t;
7406 ioa_cfg->host = host;
7407 ioa_cfg->pdev = pdev;
7408 ioa_cfg->log_level = ipr_log_level;
7409 ioa_cfg->doorbell = IPR_DOORBELL;
7410 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
7411 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
7412 sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL);
7413 sprintf(ioa_cfg->ipr_pending_label, IPR_PENDQ_LABEL);
7414 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START);
7415 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL);
7416 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL);
7417 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL);
7419 INIT_LIST_HEAD(&ioa_cfg->free_q);
7420 INIT_LIST_HEAD(&ioa_cfg->pending_q);
7421 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q);
7422 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q);
7423 INIT_LIST_HEAD(&ioa_cfg->free_res_q);
7424 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
7425 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
7426 init_waitqueue_head(&ioa_cfg->reset_wait_q);
7427 ioa_cfg->sdt_state = INACTIVE;
7428 if (ipr_enable_cache)
7429 ioa_cfg->cache_state = CACHE_ENABLED;
7431 ioa_cfg->cache_state = CACHE_DISABLED;
7433 ipr_initialize_bus_attr(ioa_cfg);
7435 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS;
7436 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET;
7437 host->max_channel = IPR_MAX_BUS_TO_SCAN;
7438 host->unique_id = host->host_no;
7439 host->max_cmd_len = IPR_MAX_CDB_LEN;
7440 pci_set_drvdata(pdev, ioa_cfg);
7442 p = &ioa_cfg->chip_cfg->regs;
7444 base = ioa_cfg->hdw_dma_regs;
7446 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
7447 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
7448 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
7449 t->clr_interrupt_reg = base + p->clr_interrupt_reg;
7450 t->sense_interrupt_reg = base + p->sense_interrupt_reg;
7451 t->ioarrin_reg = base + p->ioarrin_reg;
7452 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
7453 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
7454 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
7458 * ipr_get_chip_cfg - Find adapter chip configuration
7459 * @dev_id: PCI device id struct
7462 * ptr to chip config on success / NULL on failure
7464 static const struct ipr_chip_cfg_t * __devinit
7465 ipr_get_chip_cfg(const struct pci_device_id *dev_id)
7469 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++)
7470 if (ipr_chip[i].vendor == dev_id->vendor &&
7471 ipr_chip[i].device == dev_id->device)
7472 return ipr_chip[i].cfg;
7477 * ipr_probe_ioa - Allocates memory and does first stage of initialization
7478 * @pdev: PCI device struct
7479 * @dev_id: PCI device id struct
7482 * 0 on success / non-zero on failure
7484 static int __devinit ipr_probe_ioa(struct pci_dev *pdev,
7485 const struct pci_device_id *dev_id)
7487 struct ipr_ioa_cfg *ioa_cfg;
7488 struct Scsi_Host *host;
7489 unsigned long ipr_regs_pci;
7490 void __iomem *ipr_regs;
7491 int rc = PCIBIOS_SUCCESSFUL;
7492 volatile u32 mask, uproc, interrupts;
7496 if ((rc = pci_enable_device(pdev))) {
7497 dev_err(&pdev->dev, "Cannot enable adapter\n");
7501 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
7503 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
7506 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n");
7511 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
7512 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
7513 ata_host_init(&ioa_cfg->ata_host, &pdev->dev,
7514 sata_port_info.flags, &ipr_sata_ops);
7516 ioa_cfg->chip_cfg = ipr_get_chip_cfg(dev_id);
7518 if (!ioa_cfg->chip_cfg) {
7519 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n",
7520 dev_id->vendor, dev_id->device);
7521 goto out_scsi_host_put;
7524 if (ipr_transop_timeout)
7525 ioa_cfg->transop_timeout = ipr_transop_timeout;
7526 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT)
7527 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT;
7529 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT;
7531 rc = pci_read_config_byte(pdev, PCI_REVISION_ID, &ioa_cfg->revid);
7533 if (rc != PCIBIOS_SUCCESSFUL) {
7534 dev_err(&pdev->dev, "Failed to read PCI revision ID\n");
7536 goto out_scsi_host_put;
7539 ipr_regs_pci = pci_resource_start(pdev, 0);
7541 rc = pci_request_regions(pdev, IPR_NAME);
7544 "Couldn't register memory range of registers\n");
7545 goto out_scsi_host_put;
7548 ipr_regs = ioremap(ipr_regs_pci, pci_resource_len(pdev, 0));
7552 "Couldn't map memory range of registers\n");
7554 goto out_release_regions;
7557 ioa_cfg->hdw_dma_regs = ipr_regs;
7558 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci;
7559 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs;
7561 ipr_init_ioa_cfg(ioa_cfg, host, pdev);
7563 pci_set_master(pdev);
7565 rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
7567 dev_err(&pdev->dev, "Failed to set PCI DMA mask\n");
7571 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
7572 ioa_cfg->chip_cfg->cache_line_size);
7574 if (rc != PCIBIOS_SUCCESSFUL) {
7575 dev_err(&pdev->dev, "Write of cache line size failed\n");
7580 /* Save away PCI config space for use following IOA reset */
7581 rc = pci_save_state(pdev);
7583 if (rc != PCIBIOS_SUCCESSFUL) {
7584 dev_err(&pdev->dev, "Failed to save PCI config space\n");
7589 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg)))
7592 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg)))
7595 rc = ipr_alloc_mem(ioa_cfg);
7598 "Couldn't allocate enough memory for device driver!\n");
7603 * If HRRQ updated interrupt is not masked, or reset alert is set,
7604 * the card is in an unknown state and needs a hard reset
7606 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7607 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg);
7608 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg);
7609 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT))
7610 ioa_cfg->needs_hard_reset = 1;
7611 if (interrupts & IPR_PCII_ERROR_INTERRUPTS)
7612 ioa_cfg->needs_hard_reset = 1;
7613 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED)
7614 ioa_cfg->ioa_unit_checked = 1;
7616 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
7617 rc = request_irq(pdev->irq, ipr_isr, IRQF_SHARED, IPR_NAME, ioa_cfg);
7620 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",
7625 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) ||
7626 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) {
7627 ioa_cfg->needs_warm_reset = 1;
7628 ioa_cfg->reset = ipr_reset_slot_reset;
7630 ioa_cfg->reset = ipr_reset_start_bist;
7632 spin_lock(&ipr_driver_lock);
7633 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head);
7634 spin_unlock(&ipr_driver_lock);
7641 ipr_free_mem(ioa_cfg);
7644 out_release_regions:
7645 pci_release_regions(pdev);
7647 scsi_host_put(host);
7649 pci_disable_device(pdev);
7654 * ipr_scan_vsets - Scans for VSET devices
7655 * @ioa_cfg: ioa config struct
7657 * Description: Since the VSET resources do not follow SAM in that we can have
7658 * sparse LUNs with no LUN 0, we have to scan for these ourselves.
7663 static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg)
7667 for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++)
7668 for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ )
7669 scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun);
7673 * ipr_initiate_ioa_bringdown - Bring down an adapter
7674 * @ioa_cfg: ioa config struct
7675 * @shutdown_type: shutdown type
7677 * Description: This function will initiate bringing down the adapter.
7678 * This consists of issuing an IOA shutdown to the adapter
7679 * to flush the cache, and running BIST.
7680 * If the caller needs to wait on the completion of the reset,
7681 * the caller must sleep on the reset_wait_q.
7686 static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg,
7687 enum ipr_shutdown_type shutdown_type)
7690 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
7691 ioa_cfg->sdt_state = ABORT_DUMP;
7692 ioa_cfg->reset_retries = 0;
7693 ioa_cfg->in_ioa_bringdown = 1;
7694 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
7699 * __ipr_remove - Remove a single adapter
7700 * @pdev: pci device struct
7702 * Adapter hot plug remove entry point.
7707 static void __ipr_remove(struct pci_dev *pdev)
7709 unsigned long host_lock_flags = 0;
7710 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7713 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7714 while(ioa_cfg->in_reset_reload) {
7715 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7716 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
7717 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7720 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
7722 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7723 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
7724 flush_scheduled_work();
7725 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7727 spin_lock(&ipr_driver_lock);
7728 list_del(&ioa_cfg->queue);
7729 spin_unlock(&ipr_driver_lock);
7731 if (ioa_cfg->sdt_state == ABORT_DUMP)
7732 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
7733 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7735 ipr_free_all_resources(ioa_cfg);
7741 * ipr_remove - IOA hot plug remove entry point
7742 * @pdev: pci device struct
7744 * Adapter hot plug remove entry point.
7749 static void ipr_remove(struct pci_dev *pdev)
7751 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7755 ipr_remove_trace_file(&ioa_cfg->host->shost_classdev.kobj,
7757 ipr_remove_dump_file(&ioa_cfg->host->shost_classdev.kobj,
7759 scsi_remove_host(ioa_cfg->host);
7767 * ipr_probe - Adapter hot plug add entry point
7770 * 0 on success / non-zero on failure
7772 static int __devinit ipr_probe(struct pci_dev *pdev,
7773 const struct pci_device_id *dev_id)
7775 struct ipr_ioa_cfg *ioa_cfg;
7778 rc = ipr_probe_ioa(pdev, dev_id);
7783 ioa_cfg = pci_get_drvdata(pdev);
7784 rc = ipr_probe_ioa_part2(ioa_cfg);
7791 rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
7798 rc = ipr_create_trace_file(&ioa_cfg->host->shost_classdev.kobj,
7802 scsi_remove_host(ioa_cfg->host);
7807 rc = ipr_create_dump_file(&ioa_cfg->host->shost_classdev.kobj,
7811 ipr_remove_trace_file(&ioa_cfg->host->shost_classdev.kobj,
7813 scsi_remove_host(ioa_cfg->host);
7818 scsi_scan_host(ioa_cfg->host);
7819 ipr_scan_vsets(ioa_cfg);
7820 scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN);
7821 ioa_cfg->allow_ml_add_del = 1;
7822 ioa_cfg->host->max_channel = IPR_VSET_BUS;
7823 schedule_work(&ioa_cfg->work_q);
7828 * ipr_shutdown - Shutdown handler.
7829 * @pdev: pci device struct
7831 * This function is invoked upon system shutdown/reboot. It will issue
7832 * an adapter shutdown to the adapter to flush the write cache.
7837 static void ipr_shutdown(struct pci_dev *pdev)
7839 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7840 unsigned long lock_flags = 0;
7842 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
7843 while(ioa_cfg->in_reset_reload) {
7844 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
7845 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
7846 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
7849 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
7850 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
7851 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
7854 static struct pci_device_id ipr_pci_table[] __devinitdata = {
7855 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
7856 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 },
7857 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
7858 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 },
7859 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
7860 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 },
7861 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
7862 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 },
7863 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
7864 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 },
7865 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
7866 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 },
7867 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
7868 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 },
7869 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
7870 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0,
7871 IPR_USE_LONG_TRANSOP_TIMEOUT },
7872 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
7873 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
7874 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
7875 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
7876 IPR_USE_LONG_TRANSOP_TIMEOUT },
7877 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
7878 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
7879 IPR_USE_LONG_TRANSOP_TIMEOUT },
7880 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
7881 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
7882 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
7883 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
7884 IPR_USE_LONG_TRANSOP_TIMEOUT},
7885 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
7886 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
7887 IPR_USE_LONG_TRANSOP_TIMEOUT },
7888 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
7889 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0,
7890 IPR_USE_LONG_TRANSOP_TIMEOUT },
7891 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
7892 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575D, 0, 0,
7893 IPR_USE_LONG_TRANSOP_TIMEOUT },
7894 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
7895 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 },
7896 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
7897 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0,
7898 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET },
7899 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
7900 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 },
7901 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
7902 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 },
7903 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
7904 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0,
7905 IPR_USE_LONG_TRANSOP_TIMEOUT },
7906 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
7907 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0,
7908 IPR_USE_LONG_TRANSOP_TIMEOUT },
7909 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SCAMP_E,
7910 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0,
7911 IPR_USE_LONG_TRANSOP_TIMEOUT },
7914 MODULE_DEVICE_TABLE(pci, ipr_pci_table);
7916 static struct pci_error_handlers ipr_err_handler = {
7917 .error_detected = ipr_pci_error_detected,
7918 .slot_reset = ipr_pci_slot_reset,
7921 static struct pci_driver ipr_driver = {
7923 .id_table = ipr_pci_table,
7925 .remove = ipr_remove,
7926 .shutdown = ipr_shutdown,
7927 .err_handler = &ipr_err_handler,
7928 .dynids.use_driver_data = 1
7932 * ipr_init - Module entry point
7935 * 0 on success / negative value on failure
7937 static int __init ipr_init(void)
7939 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n",
7940 IPR_DRIVER_VERSION, IPR_DRIVER_DATE);
7942 return pci_register_driver(&ipr_driver);
7946 * ipr_exit - Module unload
7948 * Module unload entry point.
7953 static void __exit ipr_exit(void)
7955 pci_unregister_driver(&ipr_driver);
7958 module_init(ipr_init);
7959 module_exit(ipr_exit);