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
2468 * @bin_attr: bin_attribute struct
2471 * @count: buffer size
2474 * number of bytes printed to buffer
2476 static ssize_t ipr_read_trace(struct kobject *kobj,
2477 struct bin_attribute *bin_attr,
2478 char *buf, loff_t off, size_t count)
2480 struct class_device *cdev = container_of(kobj,struct class_device,kobj);
2481 struct Scsi_Host *shost = class_to_shost(cdev);
2482 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2483 unsigned long lock_flags = 0;
2484 int size = IPR_TRACE_SIZE;
2485 char *src = (char *)ioa_cfg->trace;
2489 if (off + count > size) {
2494 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2495 memcpy(buf, &src[off], count);
2496 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2500 static struct bin_attribute ipr_trace_attr = {
2506 .read = ipr_read_trace,
2510 static const struct {
2511 enum ipr_cache_state state;
2513 } cache_state [] = {
2514 { CACHE_NONE, "none" },
2515 { CACHE_DISABLED, "disabled" },
2516 { CACHE_ENABLED, "enabled" }
2520 * ipr_show_write_caching - Show the write caching attribute
2521 * @class_dev: class device struct
2525 * number of bytes printed to buffer
2527 static ssize_t ipr_show_write_caching(struct class_device *class_dev, char *buf)
2529 struct Scsi_Host *shost = class_to_shost(class_dev);
2530 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2531 unsigned long lock_flags = 0;
2534 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2535 for (i = 0; i < ARRAY_SIZE(cache_state); i++) {
2536 if (cache_state[i].state == ioa_cfg->cache_state) {
2537 len = snprintf(buf, PAGE_SIZE, "%s\n", cache_state[i].name);
2541 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2547 * ipr_store_write_caching - Enable/disable adapter write cache
2548 * @class_dev: class_device struct
2550 * @count: buffer size
2552 * This function will enable/disable adapter write cache.
2555 * count on success / other on failure
2557 static ssize_t ipr_store_write_caching(struct class_device *class_dev,
2558 const char *buf, size_t count)
2560 struct Scsi_Host *shost = class_to_shost(class_dev);
2561 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2562 unsigned long lock_flags = 0;
2563 enum ipr_cache_state new_state = CACHE_INVALID;
2566 if (!capable(CAP_SYS_ADMIN))
2568 if (ioa_cfg->cache_state == CACHE_NONE)
2571 for (i = 0; i < ARRAY_SIZE(cache_state); i++) {
2572 if (!strncmp(cache_state[i].name, buf, strlen(cache_state[i].name))) {
2573 new_state = cache_state[i].state;
2578 if (new_state != CACHE_DISABLED && new_state != CACHE_ENABLED)
2581 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2582 if (ioa_cfg->cache_state == new_state) {
2583 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2587 ioa_cfg->cache_state = new_state;
2588 dev_info(&ioa_cfg->pdev->dev, "%s adapter write cache.\n",
2589 new_state == CACHE_ENABLED ? "Enabling" : "Disabling");
2590 if (!ioa_cfg->in_reset_reload)
2591 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
2592 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2593 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2598 static struct class_device_attribute ipr_ioa_cache_attr = {
2600 .name = "write_cache",
2601 .mode = S_IRUGO | S_IWUSR,
2603 .show = ipr_show_write_caching,
2604 .store = ipr_store_write_caching
2608 * ipr_show_fw_version - Show the firmware version
2609 * @class_dev: class device struct
2613 * number of bytes printed to buffer
2615 static ssize_t ipr_show_fw_version(struct class_device *class_dev, char *buf)
2617 struct Scsi_Host *shost = class_to_shost(class_dev);
2618 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2619 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
2620 unsigned long lock_flags = 0;
2623 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2624 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n",
2625 ucode_vpd->major_release, ucode_vpd->card_type,
2626 ucode_vpd->minor_release[0],
2627 ucode_vpd->minor_release[1]);
2628 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2632 static struct class_device_attribute ipr_fw_version_attr = {
2634 .name = "fw_version",
2637 .show = ipr_show_fw_version,
2641 * ipr_show_log_level - Show the adapter's error logging level
2642 * @class_dev: class device struct
2646 * number of bytes printed to buffer
2648 static ssize_t ipr_show_log_level(struct class_device *class_dev, char *buf)
2650 struct Scsi_Host *shost = class_to_shost(class_dev);
2651 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2652 unsigned long lock_flags = 0;
2655 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2656 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level);
2657 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2662 * ipr_store_log_level - Change the adapter's error logging level
2663 * @class_dev: class device struct
2667 * number of bytes printed to buffer
2669 static ssize_t ipr_store_log_level(struct class_device *class_dev,
2670 const char *buf, size_t count)
2672 struct Scsi_Host *shost = class_to_shost(class_dev);
2673 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2674 unsigned long lock_flags = 0;
2676 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2677 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10);
2678 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2682 static struct class_device_attribute ipr_log_level_attr = {
2684 .name = "log_level",
2685 .mode = S_IRUGO | S_IWUSR,
2687 .show = ipr_show_log_level,
2688 .store = ipr_store_log_level
2692 * ipr_store_diagnostics - IOA Diagnostics interface
2693 * @class_dev: class_device struct
2695 * @count: buffer size
2697 * This function will reset the adapter and wait a reasonable
2698 * amount of time for any errors that the adapter might log.
2701 * count on success / other on failure
2703 static ssize_t ipr_store_diagnostics(struct class_device *class_dev,
2704 const char *buf, size_t count)
2706 struct Scsi_Host *shost = class_to_shost(class_dev);
2707 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2708 unsigned long lock_flags = 0;
2711 if (!capable(CAP_SYS_ADMIN))
2714 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2715 while(ioa_cfg->in_reset_reload) {
2716 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2717 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2718 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2721 ioa_cfg->errors_logged = 0;
2722 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
2724 if (ioa_cfg->in_reset_reload) {
2725 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2726 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2728 /* Wait for a second for any errors to be logged */
2731 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2735 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2736 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged)
2738 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2743 static struct class_device_attribute ipr_diagnostics_attr = {
2745 .name = "run_diagnostics",
2748 .store = ipr_store_diagnostics
2752 * ipr_show_adapter_state - Show the adapter's state
2753 * @class_dev: class device struct
2757 * number of bytes printed to buffer
2759 static ssize_t ipr_show_adapter_state(struct class_device *class_dev, char *buf)
2761 struct Scsi_Host *shost = class_to_shost(class_dev);
2762 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2763 unsigned long lock_flags = 0;
2766 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2767 if (ioa_cfg->ioa_is_dead)
2768 len = snprintf(buf, PAGE_SIZE, "offline\n");
2770 len = snprintf(buf, PAGE_SIZE, "online\n");
2771 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2776 * ipr_store_adapter_state - Change adapter state
2777 * @class_dev: class_device struct
2779 * @count: buffer size
2781 * This function will change the adapter's state.
2784 * count on success / other on failure
2786 static ssize_t ipr_store_adapter_state(struct class_device *class_dev,
2787 const char *buf, size_t count)
2789 struct Scsi_Host *shost = class_to_shost(class_dev);
2790 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2791 unsigned long lock_flags;
2794 if (!capable(CAP_SYS_ADMIN))
2797 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2798 if (ioa_cfg->ioa_is_dead && !strncmp(buf, "online", 6)) {
2799 ioa_cfg->ioa_is_dead = 0;
2800 ioa_cfg->reset_retries = 0;
2801 ioa_cfg->in_ioa_bringdown = 0;
2802 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2804 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2805 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2810 static struct class_device_attribute ipr_ioa_state_attr = {
2813 .mode = S_IRUGO | S_IWUSR,
2815 .show = ipr_show_adapter_state,
2816 .store = ipr_store_adapter_state
2820 * ipr_store_reset_adapter - Reset the adapter
2821 * @class_dev: class_device struct
2823 * @count: buffer size
2825 * This function will reset the adapter.
2828 * count on success / other on failure
2830 static ssize_t ipr_store_reset_adapter(struct class_device *class_dev,
2831 const char *buf, size_t count)
2833 struct Scsi_Host *shost = class_to_shost(class_dev);
2834 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2835 unsigned long lock_flags;
2838 if (!capable(CAP_SYS_ADMIN))
2841 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2842 if (!ioa_cfg->in_reset_reload)
2843 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
2844 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2845 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2850 static struct class_device_attribute ipr_ioa_reset_attr = {
2852 .name = "reset_host",
2855 .store = ipr_store_reset_adapter
2859 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer
2860 * @buf_len: buffer length
2862 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather
2863 * list to use for microcode download
2866 * pointer to sglist / NULL on failure
2868 static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
2870 int sg_size, order, bsize_elem, num_elem, i, j;
2871 struct ipr_sglist *sglist;
2872 struct scatterlist *scatterlist;
2875 /* Get the minimum size per scatter/gather element */
2876 sg_size = buf_len / (IPR_MAX_SGLIST - 1);
2878 /* Get the actual size per element */
2879 order = get_order(sg_size);
2881 /* Determine the actual number of bytes per element */
2882 bsize_elem = PAGE_SIZE * (1 << order);
2884 /* Determine the actual number of sg entries needed */
2885 if (buf_len % bsize_elem)
2886 num_elem = (buf_len / bsize_elem) + 1;
2888 num_elem = buf_len / bsize_elem;
2890 /* Allocate a scatter/gather list for the DMA */
2891 sglist = kzalloc(sizeof(struct ipr_sglist) +
2892 (sizeof(struct scatterlist) * (num_elem - 1)),
2895 if (sglist == NULL) {
2900 scatterlist = sglist->scatterlist;
2902 sglist->order = order;
2903 sglist->num_sg = num_elem;
2905 /* Allocate a bunch of sg elements */
2906 for (i = 0; i < num_elem; i++) {
2907 page = alloc_pages(GFP_KERNEL, order);
2911 /* Free up what we already allocated */
2912 for (j = i - 1; j >= 0; j--)
2913 __free_pages(scatterlist[j].page, order);
2918 scatterlist[i].page = page;
2925 * ipr_free_ucode_buffer - Frees a microcode download buffer
2926 * @p_dnld: scatter/gather list pointer
2928 * Free a DMA'able ucode download buffer previously allocated with
2929 * ipr_alloc_ucode_buffer
2934 static void ipr_free_ucode_buffer(struct ipr_sglist *sglist)
2938 for (i = 0; i < sglist->num_sg; i++)
2939 __free_pages(sglist->scatterlist[i].page, sglist->order);
2945 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer
2946 * @sglist: scatter/gather list pointer
2947 * @buffer: buffer pointer
2948 * @len: buffer length
2950 * Copy a microcode image from a user buffer into a buffer allocated by
2951 * ipr_alloc_ucode_buffer
2954 * 0 on success / other on failure
2956 static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
2957 u8 *buffer, u32 len)
2959 int bsize_elem, i, result = 0;
2960 struct scatterlist *scatterlist;
2963 /* Determine the actual number of bytes per element */
2964 bsize_elem = PAGE_SIZE * (1 << sglist->order);
2966 scatterlist = sglist->scatterlist;
2968 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) {
2969 kaddr = kmap(scatterlist[i].page);
2970 memcpy(kaddr, buffer, bsize_elem);
2971 kunmap(scatterlist[i].page);
2973 scatterlist[i].length = bsize_elem;
2981 if (len % bsize_elem) {
2982 kaddr = kmap(scatterlist[i].page);
2983 memcpy(kaddr, buffer, len % bsize_elem);
2984 kunmap(scatterlist[i].page);
2986 scatterlist[i].length = len % bsize_elem;
2989 sglist->buffer_len = len;
2994 * ipr_build_ucode_ioadl - Build a microcode download IOADL
2995 * @ipr_cmd: ipr command struct
2996 * @sglist: scatter/gather list
2998 * Builds a microcode download IOA data list (IOADL).
3001 static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd,
3002 struct ipr_sglist *sglist)
3004 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3005 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
3006 struct scatterlist *scatterlist = sglist->scatterlist;
3009 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
3010 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
3011 ioarcb->write_data_transfer_length = cpu_to_be32(sglist->buffer_len);
3012 ioarcb->write_ioadl_len =
3013 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
3015 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3016 ioadl[i].flags_and_data_len =
3017 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i]));
3019 cpu_to_be32(sg_dma_address(&scatterlist[i]));
3022 ioadl[i-1].flags_and_data_len |=
3023 cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3027 * ipr_update_ioa_ucode - Update IOA's microcode
3028 * @ioa_cfg: ioa config struct
3029 * @sglist: scatter/gather list
3031 * Initiate an adapter reset to update the IOA's microcode
3034 * 0 on success / -EIO on failure
3036 static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg,
3037 struct ipr_sglist *sglist)
3039 unsigned long lock_flags;
3041 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3042 while(ioa_cfg->in_reset_reload) {
3043 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3044 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3045 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3048 if (ioa_cfg->ucode_sglist) {
3049 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3050 dev_err(&ioa_cfg->pdev->dev,
3051 "Microcode download already in progress\n");
3055 sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist,
3056 sglist->num_sg, DMA_TO_DEVICE);
3058 if (!sglist->num_dma_sg) {
3059 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3060 dev_err(&ioa_cfg->pdev->dev,
3061 "Failed to map microcode download buffer!\n");
3065 ioa_cfg->ucode_sglist = sglist;
3066 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3067 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3068 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3070 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3071 ioa_cfg->ucode_sglist = NULL;
3072 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3077 * ipr_store_update_fw - Update the firmware on the adapter
3078 * @class_dev: class_device struct
3080 * @count: buffer size
3082 * This function will update the firmware on the adapter.
3085 * count on success / other on failure
3087 static ssize_t ipr_store_update_fw(struct class_device *class_dev,
3088 const char *buf, size_t count)
3090 struct Scsi_Host *shost = class_to_shost(class_dev);
3091 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3092 struct ipr_ucode_image_header *image_hdr;
3093 const struct firmware *fw_entry;
3094 struct ipr_sglist *sglist;
3097 int len, result, dnld_size;
3099 if (!capable(CAP_SYS_ADMIN))
3102 len = snprintf(fname, 99, "%s", buf);
3103 fname[len-1] = '\0';
3105 if(request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
3106 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname);
3110 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data;
3112 if (be32_to_cpu(image_hdr->header_length) > fw_entry->size ||
3113 (ioa_cfg->vpd_cbs->page3_data.card_type &&
3114 ioa_cfg->vpd_cbs->page3_data.card_type != image_hdr->card_type)) {
3115 dev_err(&ioa_cfg->pdev->dev, "Invalid microcode buffer\n");
3116 release_firmware(fw_entry);
3120 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length);
3121 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length);
3122 sglist = ipr_alloc_ucode_buffer(dnld_size);
3125 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n");
3126 release_firmware(fw_entry);
3130 result = ipr_copy_ucode_buffer(sglist, src, dnld_size);
3133 dev_err(&ioa_cfg->pdev->dev,
3134 "Microcode buffer copy to DMA buffer failed\n");
3138 result = ipr_update_ioa_ucode(ioa_cfg, sglist);
3143 ipr_free_ucode_buffer(sglist);
3144 release_firmware(fw_entry);
3148 static struct class_device_attribute ipr_update_fw_attr = {
3150 .name = "update_fw",
3153 .store = ipr_store_update_fw
3156 static struct class_device_attribute *ipr_ioa_attrs[] = {
3157 &ipr_fw_version_attr,
3158 &ipr_log_level_attr,
3159 &ipr_diagnostics_attr,
3160 &ipr_ioa_state_attr,
3161 &ipr_ioa_reset_attr,
3162 &ipr_update_fw_attr,
3163 &ipr_ioa_cache_attr,
3167 #ifdef CONFIG_SCSI_IPR_DUMP
3169 * ipr_read_dump - Dump the adapter
3170 * @kobj: kobject struct
3171 * @bin_attr: bin_attribute struct
3174 * @count: buffer size
3177 * number of bytes printed to buffer
3179 static ssize_t ipr_read_dump(struct kobject *kobj,
3180 struct bin_attribute *bin_attr,
3181 char *buf, loff_t off, size_t count)
3183 struct class_device *cdev = container_of(kobj,struct class_device,kobj);
3184 struct Scsi_Host *shost = class_to_shost(cdev);
3185 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3186 struct ipr_dump *dump;
3187 unsigned long lock_flags = 0;
3192 if (!capable(CAP_SYS_ADMIN))
3195 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3196 dump = ioa_cfg->dump;
3198 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) {
3199 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3202 kref_get(&dump->kref);
3203 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3205 if (off > dump->driver_dump.hdr.len) {
3206 kref_put(&dump->kref, ipr_release_dump);
3210 if (off + count > dump->driver_dump.hdr.len) {
3211 count = dump->driver_dump.hdr.len - off;
3215 if (count && off < sizeof(dump->driver_dump)) {
3216 if (off + count > sizeof(dump->driver_dump))
3217 len = sizeof(dump->driver_dump) - off;
3220 src = (u8 *)&dump->driver_dump + off;
3221 memcpy(buf, src, len);
3227 off -= sizeof(dump->driver_dump);
3229 if (count && off < offsetof(struct ipr_ioa_dump, ioa_data)) {
3230 if (off + count > offsetof(struct ipr_ioa_dump, ioa_data))
3231 len = offsetof(struct ipr_ioa_dump, ioa_data) - off;
3234 src = (u8 *)&dump->ioa_dump + off;
3235 memcpy(buf, src, len);
3241 off -= offsetof(struct ipr_ioa_dump, ioa_data);
3244 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK))
3245 len = PAGE_ALIGN(off) - off;
3248 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT];
3249 src += off & ~PAGE_MASK;
3250 memcpy(buf, src, len);
3256 kref_put(&dump->kref, ipr_release_dump);
3261 * ipr_alloc_dump - Prepare for adapter dump
3262 * @ioa_cfg: ioa config struct
3265 * 0 on success / other on failure
3267 static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
3269 struct ipr_dump *dump;
3270 unsigned long lock_flags = 0;
3272 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
3275 ipr_err("Dump memory allocation failed\n");
3279 kref_init(&dump->kref);
3280 dump->ioa_cfg = ioa_cfg;
3282 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3284 if (INACTIVE != ioa_cfg->sdt_state) {
3285 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3290 ioa_cfg->dump = dump;
3291 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
3292 if (ioa_cfg->ioa_is_dead && !ioa_cfg->dump_taken) {
3293 ioa_cfg->dump_taken = 1;
3294 schedule_work(&ioa_cfg->work_q);
3296 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3302 * ipr_free_dump - Free adapter dump memory
3303 * @ioa_cfg: ioa config struct
3306 * 0 on success / other on failure
3308 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
3310 struct ipr_dump *dump;
3311 unsigned long lock_flags = 0;
3315 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3316 dump = ioa_cfg->dump;
3318 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3322 ioa_cfg->dump = NULL;
3323 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3325 kref_put(&dump->kref, ipr_release_dump);
3332 * ipr_write_dump - Setup dump state of adapter
3333 * @kobj: kobject struct
3334 * @bin_attr: bin_attribute struct
3337 * @count: buffer size
3340 * number of bytes printed to buffer
3342 static ssize_t ipr_write_dump(struct kobject *kobj,
3343 struct bin_attribute *bin_attr,
3344 char *buf, loff_t off, size_t count)
3346 struct class_device *cdev = container_of(kobj,struct class_device,kobj);
3347 struct Scsi_Host *shost = class_to_shost(cdev);
3348 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3351 if (!capable(CAP_SYS_ADMIN))
3355 rc = ipr_alloc_dump(ioa_cfg);
3356 else if (buf[0] == '0')
3357 rc = ipr_free_dump(ioa_cfg);
3367 static struct bin_attribute ipr_dump_attr = {
3370 .mode = S_IRUSR | S_IWUSR,
3373 .read = ipr_read_dump,
3374 .write = ipr_write_dump
3377 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; };
3381 * ipr_change_queue_depth - Change the device's queue depth
3382 * @sdev: scsi device struct
3383 * @qdepth: depth to set
3388 static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth)
3390 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
3391 struct ipr_resource_entry *res;
3392 unsigned long lock_flags = 0;
3394 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3395 res = (struct ipr_resource_entry *)sdev->hostdata;
3397 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN)
3398 qdepth = IPR_MAX_CMD_PER_ATA_LUN;
3399 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3401 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
3402 return sdev->queue_depth;
3406 * ipr_change_queue_type - Change the device's queue type
3407 * @dsev: scsi device struct
3408 * @tag_type: type of tags to use
3411 * actual queue type set
3413 static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type)
3415 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
3416 struct ipr_resource_entry *res;
3417 unsigned long lock_flags = 0;
3419 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3420 res = (struct ipr_resource_entry *)sdev->hostdata;
3423 if (ipr_is_gscsi(res) && sdev->tagged_supported) {
3425 * We don't bother quiescing the device here since the
3426 * adapter firmware does it for us.
3428 scsi_set_tag_type(sdev, tag_type);
3431 scsi_activate_tcq(sdev, sdev->queue_depth);
3433 scsi_deactivate_tcq(sdev, sdev->queue_depth);
3439 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3444 * ipr_show_adapter_handle - Show the adapter's resource handle for this device
3445 * @dev: device struct
3449 * number of bytes printed to buffer
3451 static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf)
3453 struct scsi_device *sdev = to_scsi_device(dev);
3454 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
3455 struct ipr_resource_entry *res;
3456 unsigned long lock_flags = 0;
3457 ssize_t len = -ENXIO;
3459 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3460 res = (struct ipr_resource_entry *)sdev->hostdata;
3462 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->cfgte.res_handle);
3463 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3467 static struct device_attribute ipr_adapter_handle_attr = {
3469 .name = "adapter_handle",
3472 .show = ipr_show_adapter_handle
3475 static struct device_attribute *ipr_dev_attrs[] = {
3476 &ipr_adapter_handle_attr,
3481 * ipr_biosparam - Return the HSC mapping
3482 * @sdev: scsi device struct
3483 * @block_device: block device pointer
3484 * @capacity: capacity of the device
3485 * @parm: Array containing returned HSC values.
3487 * This function generates the HSC parms that fdisk uses.
3488 * We want to make sure we return something that places partitions
3489 * on 4k boundaries for best performance with the IOA.
3494 static int ipr_biosparam(struct scsi_device *sdev,
3495 struct block_device *block_device,
3496 sector_t capacity, int *parm)
3504 cylinders = capacity;
3505 sector_div(cylinders, (128 * 32));
3510 parm[2] = cylinders;
3516 * ipr_find_starget - Find target based on bus/target.
3517 * @starget: scsi target struct
3520 * resource entry pointer if found / NULL if not found
3522 static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget)
3524 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
3525 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
3526 struct ipr_resource_entry *res;
3528 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3529 if ((res->cfgte.res_addr.bus == starget->channel) &&
3530 (res->cfgte.res_addr.target == starget->id) &&
3531 (res->cfgte.res_addr.lun == 0)) {
3539 static struct ata_port_info sata_port_info;
3542 * ipr_target_alloc - Prepare for commands to a SCSI target
3543 * @starget: scsi target struct
3545 * If the device is a SATA device, this function allocates an
3546 * ATA port with libata, else it does nothing.
3549 * 0 on success / non-0 on failure
3551 static int ipr_target_alloc(struct scsi_target *starget)
3553 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
3554 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
3555 struct ipr_sata_port *sata_port;
3556 struct ata_port *ap;
3557 struct ipr_resource_entry *res;
3558 unsigned long lock_flags;
3560 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3561 res = ipr_find_starget(starget);
3562 starget->hostdata = NULL;
3564 if (res && ipr_is_gata(res)) {
3565 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3566 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL);
3570 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost);
3572 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3573 sata_port->ioa_cfg = ioa_cfg;
3575 sata_port->res = res;
3577 res->sata_port = sata_port;
3578 ap->private_data = sata_port;
3579 starget->hostdata = sata_port;
3585 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3591 * ipr_target_destroy - Destroy a SCSI target
3592 * @starget: scsi target struct
3594 * If the device was a SATA device, this function frees the libata
3595 * ATA port, else it does nothing.
3598 static void ipr_target_destroy(struct scsi_target *starget)
3600 struct ipr_sata_port *sata_port = starget->hostdata;
3603 starget->hostdata = NULL;
3604 ata_sas_port_destroy(sata_port->ap);
3610 * ipr_find_sdev - Find device based on bus/target/lun.
3611 * @sdev: scsi device struct
3614 * resource entry pointer if found / NULL if not found
3616 static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev)
3618 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
3619 struct ipr_resource_entry *res;
3621 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3622 if ((res->cfgte.res_addr.bus == sdev->channel) &&
3623 (res->cfgte.res_addr.target == sdev->id) &&
3624 (res->cfgte.res_addr.lun == sdev->lun))
3632 * ipr_slave_destroy - Unconfigure a SCSI device
3633 * @sdev: scsi device struct
3638 static void ipr_slave_destroy(struct scsi_device *sdev)
3640 struct ipr_resource_entry *res;
3641 struct ipr_ioa_cfg *ioa_cfg;
3642 unsigned long lock_flags = 0;
3644 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
3646 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3647 res = (struct ipr_resource_entry *) sdev->hostdata;
3650 ata_port_disable(res->sata_port->ap);
3651 sdev->hostdata = NULL;
3653 res->sata_port = NULL;
3655 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3659 * ipr_slave_configure - Configure a SCSI device
3660 * @sdev: scsi device struct
3662 * This function configures the specified scsi device.
3667 static int ipr_slave_configure(struct scsi_device *sdev)
3669 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
3670 struct ipr_resource_entry *res;
3671 unsigned long lock_flags = 0;
3673 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3674 res = sdev->hostdata;
3676 if (ipr_is_af_dasd_device(res))
3677 sdev->type = TYPE_RAID;
3678 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) {
3679 sdev->scsi_level = 4;
3680 sdev->no_uld_attach = 1;
3682 if (ipr_is_vset_device(res)) {
3683 sdev->timeout = IPR_VSET_RW_TIMEOUT;
3684 blk_queue_max_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
3686 if (ipr_is_vset_device(res) || ipr_is_scsi_disk(res))
3687 sdev->allow_restart = 1;
3688 if (ipr_is_gata(res) && res->sata_port) {
3689 scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN);
3690 ata_sas_slave_configure(sdev, res->sata_port->ap);
3692 scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun);
3695 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3700 * ipr_ata_slave_alloc - Prepare for commands to a SATA device
3701 * @sdev: scsi device struct
3703 * This function initializes an ATA port so that future commands
3704 * sent through queuecommand will work.
3709 static int ipr_ata_slave_alloc(struct scsi_device *sdev)
3711 struct ipr_sata_port *sata_port = NULL;
3715 if (sdev->sdev_target)
3716 sata_port = sdev->sdev_target->hostdata;
3718 rc = ata_sas_port_init(sata_port->ap);
3720 ipr_slave_destroy(sdev);
3727 * ipr_slave_alloc - Prepare for commands to a device.
3728 * @sdev: scsi device struct
3730 * This function saves a pointer to the resource entry
3731 * in the scsi device struct if the device exists. We
3732 * can then use this pointer in ipr_queuecommand when
3733 * handling new commands.
3736 * 0 on success / -ENXIO if device does not exist
3738 static int ipr_slave_alloc(struct scsi_device *sdev)
3740 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
3741 struct ipr_resource_entry *res;
3742 unsigned long lock_flags;
3745 sdev->hostdata = NULL;
3747 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3749 res = ipr_find_sdev(sdev);
3754 sdev->hostdata = res;
3755 if (!ipr_is_naca_model(res))
3756 res->needs_sync_complete = 1;
3758 if (ipr_is_gata(res)) {
3759 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3760 return ipr_ata_slave_alloc(sdev);
3764 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3770 * ipr_eh_host_reset - Reset the host adapter
3771 * @scsi_cmd: scsi command struct
3776 static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd)
3778 struct ipr_ioa_cfg *ioa_cfg;
3782 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
3784 dev_err(&ioa_cfg->pdev->dev,
3785 "Adapter being reset as a result of error recovery.\n");
3787 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
3788 ioa_cfg->sdt_state = GET_DUMP;
3790 rc = ipr_reset_reload(ioa_cfg, IPR_SHUTDOWN_ABBREV);
3796 static int ipr_eh_host_reset(struct scsi_cmnd * cmd)
3800 spin_lock_irq(cmd->device->host->host_lock);
3801 rc = __ipr_eh_host_reset(cmd);
3802 spin_unlock_irq(cmd->device->host->host_lock);
3808 * ipr_device_reset - Reset the device
3809 * @ioa_cfg: ioa config struct
3810 * @res: resource entry struct
3812 * This function issues a device reset to the affected device.
3813 * If the device is a SCSI device, a LUN reset will be sent
3814 * to the device first. If that does not work, a target reset
3815 * will be sent. If the device is a SATA device, a PHY reset will
3819 * 0 on success / non-zero on failure
3821 static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
3822 struct ipr_resource_entry *res)
3824 struct ipr_cmnd *ipr_cmd;
3825 struct ipr_ioarcb *ioarcb;
3826 struct ipr_cmd_pkt *cmd_pkt;
3827 struct ipr_ioarcb_ata_regs *regs;
3831 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
3832 ioarcb = &ipr_cmd->ioarcb;
3833 cmd_pkt = &ioarcb->cmd_pkt;
3834 regs = &ioarcb->add_data.u.regs;
3836 ioarcb->res_handle = res->cfgte.res_handle;
3837 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
3838 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
3839 if (ipr_is_gata(res)) {
3840 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET;
3841 ioarcb->add_cmd_parms_len = cpu_to_be32(sizeof(regs->flags));
3842 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
3845 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
3846 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
3847 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
3848 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET)
3849 memcpy(&res->sata_port->ioasa, &ipr_cmd->ioasa.u.gata,
3850 sizeof(struct ipr_ioasa_gata));
3853 return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0);
3857 * ipr_sata_reset - Reset the SATA port
3858 * @ap: SATA port to reset
3859 * @classes: class of the attached device
3861 * This function issues a SATA phy reset to the affected ATA port.
3864 * 0 on success / non-zero on failure
3866 static int ipr_sata_reset(struct ata_port *ap, unsigned int *classes,
3867 unsigned long deadline)
3869 struct ipr_sata_port *sata_port = ap->private_data;
3870 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
3871 struct ipr_resource_entry *res;
3872 unsigned long lock_flags = 0;
3876 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3877 while(ioa_cfg->in_reset_reload) {
3878 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3879 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3880 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3883 res = sata_port->res;
3885 rc = ipr_device_reset(ioa_cfg, res);
3886 switch(res->cfgte.proto) {
3887 case IPR_PROTO_SATA:
3888 case IPR_PROTO_SAS_STP:
3889 *classes = ATA_DEV_ATA;
3891 case IPR_PROTO_SATA_ATAPI:
3892 case IPR_PROTO_SAS_STP_ATAPI:
3893 *classes = ATA_DEV_ATAPI;
3896 *classes = ATA_DEV_UNKNOWN;
3901 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3907 * ipr_eh_dev_reset - Reset the device
3908 * @scsi_cmd: scsi command struct
3910 * This function issues a device reset to the affected device.
3911 * A LUN reset will be sent to the device first. If that does
3912 * not work, a target reset will be sent.
3917 static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd)
3919 struct ipr_cmnd *ipr_cmd;
3920 struct ipr_ioa_cfg *ioa_cfg;
3921 struct ipr_resource_entry *res;
3922 struct ata_port *ap;
3926 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
3927 res = scsi_cmd->device->hostdata;
3933 * If we are currently going through reset/reload, return failed. This will force the
3934 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
3937 if (ioa_cfg->in_reset_reload)
3939 if (ioa_cfg->ioa_is_dead)
3942 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
3943 if (ipr_cmd->ioarcb.res_handle == res->cfgte.res_handle) {
3944 if (ipr_cmd->scsi_cmd)
3945 ipr_cmd->done = ipr_scsi_eh_done;
3947 ipr_cmd->done = ipr_sata_eh_done;
3948 if (ipr_cmd->qc && !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) {
3949 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
3950 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED;
3955 res->resetting_device = 1;
3956 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n");
3958 if (ipr_is_gata(res) && res->sata_port) {
3959 ap = res->sata_port->ap;
3960 spin_unlock_irq(scsi_cmd->device->host->host_lock);
3961 ata_do_eh(ap, NULL, NULL, ipr_sata_reset, NULL);
3962 spin_lock_irq(scsi_cmd->device->host->host_lock);
3964 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
3965 if (ipr_cmd->ioarcb.res_handle == res->cfgte.res_handle) {
3971 rc = ipr_device_reset(ioa_cfg, res);
3972 res->resetting_device = 0;
3975 return (rc ? FAILED : SUCCESS);
3978 static int ipr_eh_dev_reset(struct scsi_cmnd * cmd)
3982 spin_lock_irq(cmd->device->host->host_lock);
3983 rc = __ipr_eh_dev_reset(cmd);
3984 spin_unlock_irq(cmd->device->host->host_lock);
3990 * ipr_bus_reset_done - Op done function for bus reset.
3991 * @ipr_cmd: ipr command struct
3993 * This function is the op done function for a bus reset
3998 static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
4000 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4001 struct ipr_resource_entry *res;
4004 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4005 if (!memcmp(&res->cfgte.res_handle, &ipr_cmd->ioarcb.res_handle,
4006 sizeof(res->cfgte.res_handle))) {
4007 scsi_report_bus_reset(ioa_cfg->host, res->cfgte.res_addr.bus);
4013 * If abort has not completed, indicate the reset has, else call the
4014 * abort's done function to wake the sleeping eh thread
4016 if (ipr_cmd->sibling->sibling)
4017 ipr_cmd->sibling->sibling = NULL;
4019 ipr_cmd->sibling->done(ipr_cmd->sibling);
4021 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4026 * ipr_abort_timeout - An abort task has timed out
4027 * @ipr_cmd: ipr command struct
4029 * This function handles when an abort task times out. If this
4030 * happens we issue a bus reset since we have resources tied
4031 * up that must be freed before returning to the midlayer.
4036 static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
4038 struct ipr_cmnd *reset_cmd;
4039 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4040 struct ipr_cmd_pkt *cmd_pkt;
4041 unsigned long lock_flags = 0;
4044 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4045 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) {
4046 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4050 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n");
4051 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4052 ipr_cmd->sibling = reset_cmd;
4053 reset_cmd->sibling = ipr_cmd;
4054 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle;
4055 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt;
4056 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4057 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
4058 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET;
4060 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
4061 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4066 * ipr_cancel_op - Cancel specified op
4067 * @scsi_cmd: scsi command struct
4069 * This function cancels specified op.
4074 static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd)
4076 struct ipr_cmnd *ipr_cmd;
4077 struct ipr_ioa_cfg *ioa_cfg;
4078 struct ipr_resource_entry *res;
4079 struct ipr_cmd_pkt *cmd_pkt;
4084 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
4085 res = scsi_cmd->device->hostdata;
4087 /* If we are currently going through reset/reload, return failed.
4088 * This will force the mid-layer to call ipr_eh_host_reset,
4089 * which will then go to sleep and wait for the reset to complete
4091 if (ioa_cfg->in_reset_reload || ioa_cfg->ioa_is_dead)
4093 if (!res || !ipr_is_gscsi(res))
4096 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
4097 if (ipr_cmd->scsi_cmd == scsi_cmd) {
4098 ipr_cmd->done = ipr_scsi_eh_done;
4107 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4108 ipr_cmd->ioarcb.res_handle = res->cfgte.res_handle;
4109 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
4110 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4111 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
4112 ipr_cmd->u.sdev = scsi_cmd->device;
4114 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n",
4116 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
4117 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4120 * If the abort task timed out and we sent a bus reset, we will get
4121 * one the following responses to the abort
4123 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) {
4128 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4129 if (!ipr_is_naca_model(res))
4130 res->needs_sync_complete = 1;
4133 return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS);
4137 * ipr_eh_abort - Abort a single op
4138 * @scsi_cmd: scsi command struct
4143 static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd)
4145 unsigned long flags;
4150 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags);
4151 rc = ipr_cancel_op(scsi_cmd);
4152 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags);
4159 * ipr_handle_other_interrupt - Handle "other" interrupts
4160 * @ioa_cfg: ioa config struct
4161 * @int_reg: interrupt register
4164 * IRQ_NONE / IRQ_HANDLED
4166 static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg,
4167 volatile u32 int_reg)
4169 irqreturn_t rc = IRQ_HANDLED;
4171 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
4172 /* Mask the interrupt */
4173 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg);
4175 /* Clear the interrupt */
4176 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg);
4177 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
4179 list_del(&ioa_cfg->reset_cmd->queue);
4180 del_timer(&ioa_cfg->reset_cmd->timer);
4181 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
4183 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED)
4184 ioa_cfg->ioa_unit_checked = 1;
4186 dev_err(&ioa_cfg->pdev->dev,
4187 "Permanent IOA failure. 0x%08X\n", int_reg);
4189 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4190 ioa_cfg->sdt_state = GET_DUMP;
4192 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
4193 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
4200 * ipr_isr - Interrupt service routine
4202 * @devp: pointer to ioa config struct
4205 * IRQ_NONE / IRQ_HANDLED
4207 static irqreturn_t ipr_isr(int irq, void *devp)
4209 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
4210 unsigned long lock_flags = 0;
4211 volatile u32 int_reg, int_mask_reg;
4214 struct ipr_cmnd *ipr_cmd;
4215 irqreturn_t rc = IRQ_NONE;
4217 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4219 /* If interrupts are disabled, ignore the interrupt */
4220 if (!ioa_cfg->allow_interrupts) {
4221 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4225 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
4226 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
4228 /* If an interrupt on the adapter did not occur, ignore it */
4229 if (unlikely((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0)) {
4230 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4237 while ((be32_to_cpu(*ioa_cfg->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
4238 ioa_cfg->toggle_bit) {
4240 cmd_index = (be32_to_cpu(*ioa_cfg->hrrq_curr) &
4241 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT;
4243 if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) {
4244 ioa_cfg->errors_logged++;
4245 dev_err(&ioa_cfg->pdev->dev, "Invalid response handle from IOA\n");
4247 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4248 ioa_cfg->sdt_state = GET_DUMP;
4250 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
4251 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4255 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
4257 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4259 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
4261 list_del(&ipr_cmd->queue);
4262 del_timer(&ipr_cmd->timer);
4263 ipr_cmd->done(ipr_cmd);
4267 if (ioa_cfg->hrrq_curr < ioa_cfg->hrrq_end) {
4268 ioa_cfg->hrrq_curr++;
4270 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
4271 ioa_cfg->toggle_bit ^= 1u;
4275 if (ipr_cmd != NULL) {
4276 /* Clear the PCI interrupt */
4277 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg);
4278 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
4283 if (unlikely(rc == IRQ_NONE))
4284 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg);
4286 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4291 * ipr_build_ioadl - Build a scatter/gather list and map the buffer
4292 * @ioa_cfg: ioa config struct
4293 * @ipr_cmd: ipr command struct
4296 * 0 on success / -1 on failure
4298 static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg,
4299 struct ipr_cmnd *ipr_cmd)
4302 struct scatterlist *sglist;
4304 u32 ioadl_flags = 0;
4305 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4306 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
4307 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
4309 length = scsi_cmd->request_bufflen;
4314 if (scsi_cmd->use_sg) {
4315 ipr_cmd->dma_use_sg = pci_map_sg(ioa_cfg->pdev,
4316 scsi_cmd->request_buffer,
4318 scsi_cmd->sc_data_direction);
4320 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
4321 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
4322 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
4323 ioarcb->write_data_transfer_length = cpu_to_be32(length);
4324 ioarcb->write_ioadl_len =
4325 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
4326 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
4327 ioadl_flags = IPR_IOADL_FLAGS_READ;
4328 ioarcb->read_data_transfer_length = cpu_to_be32(length);
4329 ioarcb->read_ioadl_len =
4330 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
4333 sglist = scsi_cmd->request_buffer;
4335 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->add_data.u.ioadl)) {
4336 ioadl = ioarcb->add_data.u.ioadl;
4337 ioarcb->write_ioadl_addr =
4338 cpu_to_be32(be32_to_cpu(ioarcb->ioarcb_host_pci_addr) +
4339 offsetof(struct ipr_ioarcb, add_data));
4340 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
4343 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
4344 ioadl[i].flags_and_data_len =
4345 cpu_to_be32(ioadl_flags | sg_dma_len(&sglist[i]));
4347 cpu_to_be32(sg_dma_address(&sglist[i]));
4350 if (likely(ipr_cmd->dma_use_sg)) {
4351 ioadl[i-1].flags_and_data_len |=
4352 cpu_to_be32(IPR_IOADL_FLAGS_LAST);
4355 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
4357 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
4358 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
4359 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
4360 ioarcb->write_data_transfer_length = cpu_to_be32(length);
4361 ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
4362 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
4363 ioadl_flags = IPR_IOADL_FLAGS_READ;
4364 ioarcb->read_data_transfer_length = cpu_to_be32(length);
4365 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
4368 ipr_cmd->dma_handle = pci_map_single(ioa_cfg->pdev,
4369 scsi_cmd->request_buffer, length,
4370 scsi_cmd->sc_data_direction);
4372 if (likely(!pci_dma_mapping_error(ipr_cmd->dma_handle))) {
4373 ioadl = ioarcb->add_data.u.ioadl;
4374 ioarcb->write_ioadl_addr =
4375 cpu_to_be32(be32_to_cpu(ioarcb->ioarcb_host_pci_addr) +
4376 offsetof(struct ipr_ioarcb, add_data));
4377 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
4378 ipr_cmd->dma_use_sg = 1;
4379 ioadl[0].flags_and_data_len =
4380 cpu_to_be32(ioadl_flags | length | IPR_IOADL_FLAGS_LAST);
4381 ioadl[0].address = cpu_to_be32(ipr_cmd->dma_handle);
4384 dev_err(&ioa_cfg->pdev->dev, "pci_map_single failed!\n");
4391 * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes
4392 * @scsi_cmd: scsi command struct
4397 static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd)
4400 u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK;
4402 if (scsi_populate_tag_msg(scsi_cmd, tag)) {
4404 case MSG_SIMPLE_TAG:
4405 rc = IPR_FLAGS_LO_SIMPLE_TASK;
4408 rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK;
4410 case MSG_ORDERED_TAG:
4411 rc = IPR_FLAGS_LO_ORDERED_TASK;
4420 * ipr_erp_done - Process completion of ERP for a device
4421 * @ipr_cmd: ipr command struct
4423 * This function copies the sense buffer into the scsi_cmd
4424 * struct and pushes the scsi_done function.
4429 static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
4431 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4432 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
4433 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4434 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4436 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
4437 scsi_cmd->result |= (DID_ERROR << 16);
4438 scmd_printk(KERN_ERR, scsi_cmd,
4439 "Request Sense failed with IOASC: 0x%08X\n", ioasc);
4441 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer,
4442 SCSI_SENSE_BUFFERSIZE);
4446 if (!ipr_is_naca_model(res))
4447 res->needs_sync_complete = 1;
4450 ipr_unmap_sglist(ioa_cfg, ipr_cmd);
4451 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4452 scsi_cmd->scsi_done(scsi_cmd);
4456 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP
4457 * @ipr_cmd: ipr command struct
4462 static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
4464 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
4465 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
4466 dma_addr_t dma_addr = be32_to_cpu(ioarcb->ioarcb_host_pci_addr);
4468 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
4469 ioarcb->write_data_transfer_length = 0;
4470 ioarcb->read_data_transfer_length = 0;
4471 ioarcb->write_ioadl_len = 0;
4472 ioarcb->read_ioadl_len = 0;
4474 ioasa->residual_data_len = 0;
4475 ioarcb->write_ioadl_addr =
4476 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioadl));
4477 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
4481 * ipr_erp_request_sense - Send request sense to a device
4482 * @ipr_cmd: ipr command struct
4484 * This function sends a request sense to a device as a result
4485 * of a check condition.
4490 static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
4492 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
4493 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4495 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
4496 ipr_erp_done(ipr_cmd);
4500 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
4502 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB;
4503 cmd_pkt->cdb[0] = REQUEST_SENSE;
4504 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE;
4505 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE;
4506 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
4507 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ);
4509 ipr_cmd->ioadl[0].flags_and_data_len =
4510 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | SCSI_SENSE_BUFFERSIZE);
4511 ipr_cmd->ioadl[0].address =
4512 cpu_to_be32(ipr_cmd->sense_buffer_dma);
4514 ipr_cmd->ioarcb.read_ioadl_len =
4515 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
4516 ipr_cmd->ioarcb.read_data_transfer_length =
4517 cpu_to_be32(SCSI_SENSE_BUFFERSIZE);
4519 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout,
4520 IPR_REQUEST_SENSE_TIMEOUT * 2);
4524 * ipr_erp_cancel_all - Send cancel all to a device
4525 * @ipr_cmd: ipr command struct
4527 * This function sends a cancel all to a device to clear the
4528 * queue. If we are running TCQ on the device, QERR is set to 1,
4529 * which means all outstanding ops have been dropped on the floor.
4530 * Cancel all will return them to us.
4535 static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
4537 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4538 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
4539 struct ipr_cmd_pkt *cmd_pkt;
4543 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
4545 if (!scsi_get_tag_type(scsi_cmd->device)) {
4546 ipr_erp_request_sense(ipr_cmd);
4550 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
4551 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4552 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
4554 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout,
4555 IPR_CANCEL_ALL_TIMEOUT);
4559 * ipr_dump_ioasa - Dump contents of IOASA
4560 * @ioa_cfg: ioa config struct
4561 * @ipr_cmd: ipr command struct
4562 * @res: resource entry struct
4564 * This function is invoked by the interrupt handler when ops
4565 * fail. It will log the IOASA if appropriate. Only called
4571 static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
4572 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res)
4576 u32 ioasc, fd_ioasc;
4577 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
4578 __be32 *ioasa_data = (__be32 *)ioasa;
4581 ioasc = be32_to_cpu(ioasa->ioasc) & IPR_IOASC_IOASC_MASK;
4582 fd_ioasc = be32_to_cpu(ioasa->fd_ioasc) & IPR_IOASC_IOASC_MASK;
4587 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
4590 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc)
4591 error_index = ipr_get_error(fd_ioasc);
4593 error_index = ipr_get_error(ioasc);
4595 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) {
4596 /* Don't log an error if the IOA already logged one */
4597 if (ioasa->ilid != 0)
4600 if (!ipr_is_gscsi(res))
4603 if (ipr_error_table[error_index].log_ioasa == 0)
4607 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error);
4609 if (sizeof(struct ipr_ioasa) < be16_to_cpu(ioasa->ret_stat_len))
4610 data_len = sizeof(struct ipr_ioasa);
4612 data_len = be16_to_cpu(ioasa->ret_stat_len);
4614 ipr_err("IOASA Dump:\n");
4616 for (i = 0; i < data_len / 4; i += 4) {
4617 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
4618 be32_to_cpu(ioasa_data[i]),
4619 be32_to_cpu(ioasa_data[i+1]),
4620 be32_to_cpu(ioasa_data[i+2]),
4621 be32_to_cpu(ioasa_data[i+3]));
4626 * ipr_gen_sense - Generate SCSI sense data from an IOASA
4628 * @sense_buf: sense data buffer
4633 static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
4636 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer;
4637 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata;
4638 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
4639 u32 ioasc = be32_to_cpu(ioasa->ioasc);
4641 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
4643 if (ioasc >= IPR_FIRST_DRIVER_IOASC)
4646 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION;
4648 if (ipr_is_vset_device(res) &&
4649 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC &&
4650 ioasa->u.vset.failing_lba_hi != 0) {
4651 sense_buf[0] = 0x72;
4652 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc);
4653 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc);
4654 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc);
4658 sense_buf[9] = 0x0A;
4659 sense_buf[10] = 0x80;
4661 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi);
4663 sense_buf[12] = (failing_lba & 0xff000000) >> 24;
4664 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16;
4665 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8;
4666 sense_buf[15] = failing_lba & 0x000000ff;
4668 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
4670 sense_buf[16] = (failing_lba & 0xff000000) >> 24;
4671 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16;
4672 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8;
4673 sense_buf[19] = failing_lba & 0x000000ff;
4675 sense_buf[0] = 0x70;
4676 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc);
4677 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc);
4678 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc);
4680 /* Illegal request */
4681 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) &&
4682 (be32_to_cpu(ioasa->ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
4683 sense_buf[7] = 10; /* additional length */
4685 /* IOARCB was in error */
4686 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24)
4687 sense_buf[15] = 0xC0;
4688 else /* Parameter data was invalid */
4689 sense_buf[15] = 0x80;
4692 ((IPR_FIELD_POINTER_MASK &
4693 be32_to_cpu(ioasa->ioasc_specific)) >> 8) & 0xff;
4695 (IPR_FIELD_POINTER_MASK &
4696 be32_to_cpu(ioasa->ioasc_specific)) & 0xff;
4698 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) {
4699 if (ipr_is_vset_device(res))
4700 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
4702 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba);
4704 sense_buf[0] |= 0x80; /* Or in the Valid bit */
4705 sense_buf[3] = (failing_lba & 0xff000000) >> 24;
4706 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16;
4707 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8;
4708 sense_buf[6] = failing_lba & 0x000000ff;
4711 sense_buf[7] = 6; /* additional length */
4717 * ipr_get_autosense - Copy autosense data to sense buffer
4718 * @ipr_cmd: ipr command struct
4720 * This function copies the autosense buffer to the buffer
4721 * in the scsi_cmd, if there is autosense available.
4724 * 1 if autosense was available / 0 if not
4726 static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
4728 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
4730 if ((be32_to_cpu(ioasa->ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
4733 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
4734 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
4735 SCSI_SENSE_BUFFERSIZE));
4740 * ipr_erp_start - Process an error response for a SCSI op
4741 * @ioa_cfg: ioa config struct
4742 * @ipr_cmd: ipr command struct
4744 * This function determines whether or not to initiate ERP
4745 * on the affected device.
4750 static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
4751 struct ipr_cmnd *ipr_cmd)
4753 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4754 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
4755 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4756 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK;
4759 ipr_scsi_eh_done(ipr_cmd);
4763 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS)
4764 ipr_gen_sense(ipr_cmd);
4766 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
4768 switch (masked_ioasc) {
4769 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
4770 if (ipr_is_naca_model(res))
4771 scsi_cmd->result |= (DID_ABORT << 16);
4773 scsi_cmd->result |= (DID_IMM_RETRY << 16);
4775 case IPR_IOASC_IR_RESOURCE_HANDLE:
4776 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
4777 scsi_cmd->result |= (DID_NO_CONNECT << 16);
4779 case IPR_IOASC_HW_SEL_TIMEOUT:
4780 scsi_cmd->result |= (DID_NO_CONNECT << 16);
4781 if (!ipr_is_naca_model(res))
4782 res->needs_sync_complete = 1;
4784 case IPR_IOASC_SYNC_REQUIRED:
4786 res->needs_sync_complete = 1;
4787 scsi_cmd->result |= (DID_IMM_RETRY << 16);
4789 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
4790 case IPR_IOASA_IR_DUAL_IOA_DISABLED:
4791 scsi_cmd->result |= (DID_PASSTHROUGH << 16);
4793 case IPR_IOASC_BUS_WAS_RESET:
4794 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER:
4796 * Report the bus reset and ask for a retry. The device
4797 * will give CC/UA the next command.
4799 if (!res->resetting_device)
4800 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
4801 scsi_cmd->result |= (DID_ERROR << 16);
4802 if (!ipr_is_naca_model(res))
4803 res->needs_sync_complete = 1;
4805 case IPR_IOASC_HW_DEV_BUS_STATUS:
4806 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
4807 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
4808 if (!ipr_get_autosense(ipr_cmd)) {
4809 if (!ipr_is_naca_model(res)) {
4810 ipr_erp_cancel_all(ipr_cmd);
4815 if (!ipr_is_naca_model(res))
4816 res->needs_sync_complete = 1;
4818 case IPR_IOASC_NR_INIT_CMD_REQUIRED:
4821 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
4822 scsi_cmd->result |= (DID_ERROR << 16);
4823 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
4824 res->needs_sync_complete = 1;
4828 ipr_unmap_sglist(ioa_cfg, ipr_cmd);
4829 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4830 scsi_cmd->scsi_done(scsi_cmd);
4834 * ipr_scsi_done - mid-layer done function
4835 * @ipr_cmd: ipr command struct
4837 * This function is invoked by the interrupt handler for
4838 * ops generated by the SCSI mid-layer
4843 static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
4845 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4846 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4847 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4849 scsi_cmd->resid = be32_to_cpu(ipr_cmd->ioasa.residual_data_len);
4851 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
4852 ipr_unmap_sglist(ioa_cfg, ipr_cmd);
4853 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4854 scsi_cmd->scsi_done(scsi_cmd);
4856 ipr_erp_start(ioa_cfg, ipr_cmd);
4860 * ipr_queuecommand - Queue a mid-layer request
4861 * @scsi_cmd: scsi command struct
4862 * @done: done function
4864 * This function queues a request generated by the mid-layer.
4868 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy
4869 * SCSI_MLQUEUE_HOST_BUSY if host is busy
4871 static int ipr_queuecommand(struct scsi_cmnd *scsi_cmd,
4872 void (*done) (struct scsi_cmnd *))
4874 struct ipr_ioa_cfg *ioa_cfg;
4875 struct ipr_resource_entry *res;
4876 struct ipr_ioarcb *ioarcb;
4877 struct ipr_cmnd *ipr_cmd;
4880 scsi_cmd->scsi_done = done;
4881 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
4882 res = scsi_cmd->device->hostdata;
4883 scsi_cmd->result = (DID_OK << 16);
4886 * We are currently blocking all devices due to a host reset
4887 * We have told the host to stop giving us new requests, but
4888 * ERP ops don't count. FIXME
4890 if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead))
4891 return SCSI_MLQUEUE_HOST_BUSY;
4894 * FIXME - Create scsi_set_host_offline interface
4895 * and the ioa_is_dead check can be removed
4897 if (unlikely(ioa_cfg->ioa_is_dead || !res)) {
4898 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
4899 scsi_cmd->result = (DID_NO_CONNECT << 16);
4900 scsi_cmd->scsi_done(scsi_cmd);
4904 if (ipr_is_gata(res) && res->sata_port)
4905 return ata_sas_queuecmd(scsi_cmd, done, res->sata_port->ap);
4907 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4908 ioarcb = &ipr_cmd->ioarcb;
4909 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
4911 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len);
4912 ipr_cmd->scsi_cmd = scsi_cmd;
4913 ioarcb->res_handle = res->cfgte.res_handle;
4914 ipr_cmd->done = ipr_scsi_done;
4915 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_PHYS_LOC(res->cfgte.res_addr));
4917 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
4918 if (scsi_cmd->underflow == 0)
4919 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
4921 if (res->needs_sync_complete) {
4922 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
4923 res->needs_sync_complete = 0;
4926 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
4927 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
4928 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
4929 ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd);
4932 if (scsi_cmd->cmnd[0] >= 0xC0 &&
4933 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE))
4934 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
4936 if (likely(rc == 0))
4937 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
4939 if (likely(rc == 0)) {
4941 writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr),
4942 ioa_cfg->regs.ioarrin_reg);
4944 list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4945 return SCSI_MLQUEUE_HOST_BUSY;
4952 * ipr_ioctl - IOCTL handler
4953 * @sdev: scsi device struct
4958 * 0 on success / other on failure
4960 static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
4962 struct ipr_resource_entry *res;
4964 res = (struct ipr_resource_entry *)sdev->hostdata;
4965 if (res && ipr_is_gata(res))
4966 return ata_scsi_ioctl(sdev, cmd, arg);
4972 * ipr_info - Get information about the card/driver
4973 * @scsi_host: scsi host struct
4976 * pointer to buffer with description string
4978 static const char * ipr_ioa_info(struct Scsi_Host *host)
4980 static char buffer[512];
4981 struct ipr_ioa_cfg *ioa_cfg;
4982 unsigned long lock_flags = 0;
4984 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata;
4986 spin_lock_irqsave(host->host_lock, lock_flags);
4987 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type);
4988 spin_unlock_irqrestore(host->host_lock, lock_flags);
4993 static struct scsi_host_template driver_template = {
4994 .module = THIS_MODULE,
4996 .info = ipr_ioa_info,
4998 .queuecommand = ipr_queuecommand,
4999 .eh_abort_handler = ipr_eh_abort,
5000 .eh_device_reset_handler = ipr_eh_dev_reset,
5001 .eh_host_reset_handler = ipr_eh_host_reset,
5002 .slave_alloc = ipr_slave_alloc,
5003 .slave_configure = ipr_slave_configure,
5004 .slave_destroy = ipr_slave_destroy,
5005 .target_alloc = ipr_target_alloc,
5006 .target_destroy = ipr_target_destroy,
5007 .change_queue_depth = ipr_change_queue_depth,
5008 .change_queue_type = ipr_change_queue_type,
5009 .bios_param = ipr_biosparam,
5010 .can_queue = IPR_MAX_COMMANDS,
5012 .sg_tablesize = IPR_MAX_SGLIST,
5013 .max_sectors = IPR_IOA_MAX_SECTORS,
5014 .cmd_per_lun = IPR_MAX_CMD_PER_LUN,
5015 .use_clustering = ENABLE_CLUSTERING,
5016 .shost_attrs = ipr_ioa_attrs,
5017 .sdev_attrs = ipr_dev_attrs,
5018 .proc_name = IPR_NAME
5022 * ipr_ata_phy_reset - libata phy_reset handler
5023 * @ap: ata port to reset
5026 static void ipr_ata_phy_reset(struct ata_port *ap)
5028 unsigned long flags;
5029 struct ipr_sata_port *sata_port = ap->private_data;
5030 struct ipr_resource_entry *res = sata_port->res;
5031 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5035 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5036 while(ioa_cfg->in_reset_reload) {
5037 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5038 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5039 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5042 if (!ioa_cfg->allow_cmds)
5045 rc = ipr_device_reset(ioa_cfg, res);
5048 ap->ops->port_disable(ap);
5052 switch(res->cfgte.proto) {
5053 case IPR_PROTO_SATA:
5054 case IPR_PROTO_SAS_STP:
5055 ap->device[0].class = ATA_DEV_ATA;
5057 case IPR_PROTO_SATA_ATAPI:
5058 case IPR_PROTO_SAS_STP_ATAPI:
5059 ap->device[0].class = ATA_DEV_ATAPI;
5062 ap->device[0].class = ATA_DEV_UNKNOWN;
5063 ap->ops->port_disable(ap);
5068 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5073 * ipr_ata_post_internal - Cleanup after an internal command
5074 * @qc: ATA queued command
5079 static void ipr_ata_post_internal(struct ata_queued_cmd *qc)
5081 struct ipr_sata_port *sata_port = qc->ap->private_data;
5082 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5083 struct ipr_cmnd *ipr_cmd;
5084 unsigned long flags;
5086 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5087 while(ioa_cfg->in_reset_reload) {
5088 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5089 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5090 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5093 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
5094 if (ipr_cmd->qc == qc) {
5095 ipr_device_reset(ioa_cfg, sata_port->res);
5099 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5103 * ipr_tf_read - Read the current ATA taskfile for the ATA port
5105 * @tf: destination ATA taskfile
5110 static void ipr_tf_read(struct ata_port *ap, struct ata_taskfile *tf)
5112 struct ipr_sata_port *sata_port = ap->private_data;
5113 struct ipr_ioasa_gata *g = &sata_port->ioasa;
5115 tf->feature = g->error;
5116 tf->nsect = g->nsect;
5120 tf->device = g->device;
5121 tf->command = g->status;
5122 tf->hob_nsect = g->hob_nsect;
5123 tf->hob_lbal = g->hob_lbal;
5124 tf->hob_lbam = g->hob_lbam;
5125 tf->hob_lbah = g->hob_lbah;
5126 tf->ctl = g->alt_status;
5130 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure
5131 * @regs: destination
5132 * @tf: source ATA taskfile
5137 static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs,
5138 struct ata_taskfile *tf)
5140 regs->feature = tf->feature;
5141 regs->nsect = tf->nsect;
5142 regs->lbal = tf->lbal;
5143 regs->lbam = tf->lbam;
5144 regs->lbah = tf->lbah;
5145 regs->device = tf->device;
5146 regs->command = tf->command;
5147 regs->hob_feature = tf->hob_feature;
5148 regs->hob_nsect = tf->hob_nsect;
5149 regs->hob_lbal = tf->hob_lbal;
5150 regs->hob_lbam = tf->hob_lbam;
5151 regs->hob_lbah = tf->hob_lbah;
5152 regs->ctl = tf->ctl;
5156 * ipr_sata_done - done function for SATA commands
5157 * @ipr_cmd: ipr command struct
5159 * This function is invoked by the interrupt handler for
5160 * ops generated by the SCSI mid-layer to SATA devices
5165 static void ipr_sata_done(struct ipr_cmnd *ipr_cmd)
5167 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5168 struct ata_queued_cmd *qc = ipr_cmd->qc;
5169 struct ipr_sata_port *sata_port = qc->ap->private_data;
5170 struct ipr_resource_entry *res = sata_port->res;
5171 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
5173 memcpy(&sata_port->ioasa, &ipr_cmd->ioasa.u.gata,
5174 sizeof(struct ipr_ioasa_gata));
5175 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
5177 if (be32_to_cpu(ipr_cmd->ioasa.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
5178 scsi_report_device_reset(ioa_cfg->host, res->cfgte.res_addr.bus,
5179 res->cfgte.res_addr.target);
5181 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
5182 qc->err_mask |= __ac_err_mask(ipr_cmd->ioasa.u.gata.status);
5184 qc->err_mask |= ac_err_mask(ipr_cmd->ioasa.u.gata.status);
5185 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5186 ata_qc_complete(qc);
5190 * ipr_build_ata_ioadl - Build an ATA scatter/gather list
5191 * @ipr_cmd: ipr command struct
5192 * @qc: ATA queued command
5195 static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
5196 struct ata_queued_cmd *qc)
5198 u32 ioadl_flags = 0;
5199 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5200 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
5201 int len = qc->nbytes + qc->pad_len;
5202 struct scatterlist *sg;
5207 if (qc->dma_dir == DMA_TO_DEVICE) {
5208 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5209 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5210 ioarcb->write_data_transfer_length = cpu_to_be32(len);
5211 ioarcb->write_ioadl_len =
5212 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5213 } else if (qc->dma_dir == DMA_FROM_DEVICE) {
5214 ioadl_flags = IPR_IOADL_FLAGS_READ;
5215 ioarcb->read_data_transfer_length = cpu_to_be32(len);
5216 ioarcb->read_ioadl_len =
5217 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5220 ata_for_each_sg(sg, qc) {
5221 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
5222 ioadl->address = cpu_to_be32(sg_dma_address(sg));
5223 if (ata_sg_is_last(sg, qc))
5224 ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5231 * ipr_qc_issue - Issue a SATA qc to a device
5232 * @qc: queued command
5237 static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc)
5239 struct ata_port *ap = qc->ap;
5240 struct ipr_sata_port *sata_port = ap->private_data;
5241 struct ipr_resource_entry *res = sata_port->res;
5242 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5243 struct ipr_cmnd *ipr_cmd;
5244 struct ipr_ioarcb *ioarcb;
5245 struct ipr_ioarcb_ata_regs *regs;
5247 if (unlikely(!ioa_cfg->allow_cmds || ioa_cfg->ioa_is_dead))
5248 return AC_ERR_SYSTEM;
5250 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5251 ioarcb = &ipr_cmd->ioarcb;
5252 regs = &ioarcb->add_data.u.regs;
5254 memset(&ioarcb->add_data, 0, sizeof(ioarcb->add_data));
5255 ioarcb->add_cmd_parms_len = cpu_to_be32(sizeof(ioarcb->add_data.u.regs));
5257 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
5259 ipr_cmd->done = ipr_sata_done;
5260 ipr_cmd->ioarcb.res_handle = res->cfgte.res_handle;
5261 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU;
5262 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
5263 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5264 ipr_cmd->dma_use_sg = qc->pad_len ? qc->n_elem + 1 : qc->n_elem;
5266 ipr_build_ata_ioadl(ipr_cmd, qc);
5267 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
5268 ipr_copy_sata_tf(regs, &qc->tf);
5269 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN);
5270 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_PHYS_LOC(res->cfgte.res_addr));
5272 switch (qc->tf.protocol) {
5273 case ATA_PROT_NODATA:
5278 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
5281 case ATA_PROT_ATAPI:
5282 case ATA_PROT_ATAPI_NODATA:
5283 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
5286 case ATA_PROT_ATAPI_DMA:
5287 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
5288 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
5293 return AC_ERR_INVALID;
5297 writel(be32_to_cpu(ioarcb->ioarcb_host_pci_addr),
5298 ioa_cfg->regs.ioarrin_reg);
5303 * ipr_ata_check_status - Return last ATA status
5309 static u8 ipr_ata_check_status(struct ata_port *ap)
5311 struct ipr_sata_port *sata_port = ap->private_data;
5312 return sata_port->ioasa.status;
5316 * ipr_ata_check_altstatus - Return last ATA altstatus
5322 static u8 ipr_ata_check_altstatus(struct ata_port *ap)
5324 struct ipr_sata_port *sata_port = ap->private_data;
5325 return sata_port->ioasa.alt_status;
5328 static struct ata_port_operations ipr_sata_ops = {
5329 .port_disable = ata_port_disable,
5330 .check_status = ipr_ata_check_status,
5331 .check_altstatus = ipr_ata_check_altstatus,
5332 .dev_select = ata_noop_dev_select,
5333 .phy_reset = ipr_ata_phy_reset,
5334 .post_internal_cmd = ipr_ata_post_internal,
5335 .tf_read = ipr_tf_read,
5336 .qc_prep = ata_noop_qc_prep,
5337 .qc_issue = ipr_qc_issue,
5338 .port_start = ata_sas_port_start,
5339 .port_stop = ata_sas_port_stop
5342 static struct ata_port_info sata_port_info = {
5343 .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | ATA_FLAG_SATA_RESET |
5344 ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA,
5345 .pio_mask = 0x10, /* pio4 */
5347 .udma_mask = 0x7f, /* udma0-6 */
5348 .port_ops = &ipr_sata_ops
5351 #ifdef CONFIG_PPC_PSERIES
5352 static const u16 ipr_blocked_processors[] = {
5364 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware
5365 * @ioa_cfg: ioa cfg struct
5367 * Adapters that use Gemstone revision < 3.1 do not work reliably on
5368 * certain pSeries hardware. This function determines if the given
5369 * adapter is in one of these confgurations or not.
5372 * 1 if adapter is not supported / 0 if adapter is supported
5374 static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
5379 if (ioa_cfg->type == 0x5702) {
5380 if (pci_read_config_byte(ioa_cfg->pdev, PCI_REVISION_ID,
5381 &rev_id) == PCIBIOS_SUCCESSFUL) {
5383 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){
5384 if (__is_processor(ipr_blocked_processors[i]))
5393 #define ipr_invalid_adapter(ioa_cfg) 0
5397 * ipr_ioa_bringdown_done - IOA bring down completion.
5398 * @ipr_cmd: ipr command struct
5400 * This function processes the completion of an adapter bring down.
5401 * It wakes any reset sleepers.
5406 static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd)
5408 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5411 ioa_cfg->in_reset_reload = 0;
5412 ioa_cfg->reset_retries = 0;
5413 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5414 wake_up_all(&ioa_cfg->reset_wait_q);
5416 spin_unlock_irq(ioa_cfg->host->host_lock);
5417 scsi_unblock_requests(ioa_cfg->host);
5418 spin_lock_irq(ioa_cfg->host->host_lock);
5421 return IPR_RC_JOB_RETURN;
5425 * ipr_ioa_reset_done - IOA reset completion.
5426 * @ipr_cmd: ipr command struct
5428 * This function processes the completion of an adapter reset.
5429 * It schedules any necessary mid-layer add/removes and
5430 * wakes any reset sleepers.
5435 static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
5437 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5438 struct ipr_resource_entry *res;
5439 struct ipr_hostrcb *hostrcb, *temp;
5443 ioa_cfg->in_reset_reload = 0;
5444 ioa_cfg->allow_cmds = 1;
5445 ioa_cfg->reset_cmd = NULL;
5446 ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
5448 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
5449 if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) {
5454 schedule_work(&ioa_cfg->work_q);
5456 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) {
5457 list_del(&hostrcb->queue);
5458 if (i++ < IPR_NUM_LOG_HCAMS)
5459 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
5461 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
5464 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS);
5465 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n");
5467 ioa_cfg->reset_retries = 0;
5468 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5469 wake_up_all(&ioa_cfg->reset_wait_q);
5471 spin_unlock_irq(ioa_cfg->host->host_lock);
5472 scsi_unblock_requests(ioa_cfg->host);
5473 spin_lock_irq(ioa_cfg->host->host_lock);
5475 if (!ioa_cfg->allow_cmds)
5476 scsi_block_requests(ioa_cfg->host);
5479 return IPR_RC_JOB_RETURN;
5483 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer
5484 * @supported_dev: supported device struct
5485 * @vpids: vendor product id struct
5490 static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev,
5491 struct ipr_std_inq_vpids *vpids)
5493 memset(supported_dev, 0, sizeof(struct ipr_supported_device));
5494 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids));
5495 supported_dev->num_records = 1;
5496 supported_dev->data_length =
5497 cpu_to_be16(sizeof(struct ipr_supported_device));
5498 supported_dev->reserved = 0;
5502 * ipr_set_supported_devs - Send Set Supported Devices for a device
5503 * @ipr_cmd: ipr command struct
5505 * This function send a Set Supported Devices to the adapter
5508 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
5510 static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
5512 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5513 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev;
5514 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
5515 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5516 struct ipr_resource_entry *res = ipr_cmd->u.res;
5518 ipr_cmd->job_step = ipr_ioa_reset_done;
5520 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
5521 if (!ipr_is_scsi_disk(res))
5524 ipr_cmd->u.res = res;
5525 ipr_set_sup_dev_dflt(supp_dev, &res->cfgte.std_inq_data.vpids);
5527 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
5528 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5529 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
5531 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES;
5532 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff;
5533 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff;
5535 ioadl->flags_and_data_len = cpu_to_be32(IPR_IOADL_FLAGS_WRITE_LAST |
5536 sizeof(struct ipr_supported_device));
5537 ioadl->address = cpu_to_be32(ioa_cfg->vpd_cbs_dma +
5538 offsetof(struct ipr_misc_cbs, supp_dev));
5539 ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
5540 ioarcb->write_data_transfer_length =
5541 cpu_to_be32(sizeof(struct ipr_supported_device));
5543 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
5544 IPR_SET_SUP_DEVICE_TIMEOUT);
5546 ipr_cmd->job_step = ipr_set_supported_devs;
5547 return IPR_RC_JOB_RETURN;
5550 return IPR_RC_JOB_CONTINUE;
5554 * ipr_setup_write_cache - Disable write cache if needed
5555 * @ipr_cmd: ipr command struct
5557 * This function sets up adapters write cache to desired setting
5560 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
5562 static int ipr_setup_write_cache(struct ipr_cmnd *ipr_cmd)
5564 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5566 ipr_cmd->job_step = ipr_set_supported_devs;
5567 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
5568 struct ipr_resource_entry, queue);
5570 if (ioa_cfg->cache_state != CACHE_DISABLED)
5571 return IPR_RC_JOB_CONTINUE;
5573 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
5574 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
5575 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
5576 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL;
5578 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
5580 return IPR_RC_JOB_RETURN;
5584 * ipr_get_mode_page - Locate specified mode page
5585 * @mode_pages: mode page buffer
5586 * @page_code: page code to find
5587 * @len: minimum required length for mode page
5590 * pointer to mode page / NULL on failure
5592 static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages,
5593 u32 page_code, u32 len)
5595 struct ipr_mode_page_hdr *mode_hdr;
5599 if (!mode_pages || (mode_pages->hdr.length == 0))
5602 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len;
5603 mode_hdr = (struct ipr_mode_page_hdr *)
5604 (mode_pages->data + mode_pages->hdr.block_desc_len);
5607 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) {
5608 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr)))
5612 page_length = (sizeof(struct ipr_mode_page_hdr) +
5613 mode_hdr->page_length);
5614 length -= page_length;
5615 mode_hdr = (struct ipr_mode_page_hdr *)
5616 ((unsigned long)mode_hdr + page_length);
5623 * ipr_check_term_power - Check for term power errors
5624 * @ioa_cfg: ioa config struct
5625 * @mode_pages: IOAFP mode pages buffer
5627 * Check the IOAFP's mode page 28 for term power errors
5632 static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg,
5633 struct ipr_mode_pages *mode_pages)
5637 struct ipr_dev_bus_entry *bus;
5638 struct ipr_mode_page28 *mode_page;
5640 mode_page = ipr_get_mode_page(mode_pages, 0x28,
5641 sizeof(struct ipr_mode_page28));
5643 entry_length = mode_page->entry_length;
5645 bus = mode_page->bus;
5647 for (i = 0; i < mode_page->num_entries; i++) {
5648 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) {
5649 dev_err(&ioa_cfg->pdev->dev,
5650 "Term power is absent on scsi bus %d\n",
5654 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length);
5659 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table
5660 * @ioa_cfg: ioa config struct
5662 * Looks through the config table checking for SES devices. If
5663 * the SES device is in the SES table indicating a maximum SCSI
5664 * bus speed, the speed is limited for the bus.
5669 static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg)
5674 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
5675 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i,
5676 ioa_cfg->bus_attr[i].bus_width);
5678 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate)
5679 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate;
5684 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28
5685 * @ioa_cfg: ioa config struct
5686 * @mode_pages: mode page 28 buffer
5688 * Updates mode page 28 based on driver configuration
5693 static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg,
5694 struct ipr_mode_pages *mode_pages)
5696 int i, entry_length;
5697 struct ipr_dev_bus_entry *bus;
5698 struct ipr_bus_attributes *bus_attr;
5699 struct ipr_mode_page28 *mode_page;
5701 mode_page = ipr_get_mode_page(mode_pages, 0x28,
5702 sizeof(struct ipr_mode_page28));
5704 entry_length = mode_page->entry_length;
5706 /* Loop for each device bus entry */
5707 for (i = 0, bus = mode_page->bus;
5708 i < mode_page->num_entries;
5709 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) {
5710 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) {
5711 dev_err(&ioa_cfg->pdev->dev,
5712 "Invalid resource address reported: 0x%08X\n",
5713 IPR_GET_PHYS_LOC(bus->res_addr));
5717 bus_attr = &ioa_cfg->bus_attr[i];
5718 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY;
5719 bus->bus_width = bus_attr->bus_width;
5720 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate);
5721 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK;
5722 if (bus_attr->qas_enabled)
5723 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS;
5725 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS;
5730 * ipr_build_mode_select - Build a mode select command
5731 * @ipr_cmd: ipr command struct
5732 * @res_handle: resource handle to send command to
5733 * @parm: Byte 2 of Mode Sense command
5734 * @dma_addr: DMA buffer address
5735 * @xfer_len: data transfer length
5740 static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd,
5741 __be32 res_handle, u8 parm, u32 dma_addr,
5744 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
5745 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5747 ioarcb->res_handle = res_handle;
5748 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
5749 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5750 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT;
5751 ioarcb->cmd_pkt.cdb[1] = parm;
5752 ioarcb->cmd_pkt.cdb[4] = xfer_len;
5754 ioadl->flags_and_data_len =
5755 cpu_to_be32(IPR_IOADL_FLAGS_WRITE_LAST | xfer_len);
5756 ioadl->address = cpu_to_be32(dma_addr);
5757 ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
5758 ioarcb->write_data_transfer_length = cpu_to_be32(xfer_len);
5762 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA
5763 * @ipr_cmd: ipr command struct
5765 * This function sets up the SCSI bus attributes and sends
5766 * a Mode Select for Page 28 to activate them.
5771 static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
5773 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5774 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
5778 ipr_scsi_bus_speed_limit(ioa_cfg);
5779 ipr_check_term_power(ioa_cfg, mode_pages);
5780 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages);
5781 length = mode_pages->hdr.length + 1;
5782 mode_pages->hdr.length = 0;
5784 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
5785 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
5788 ipr_cmd->job_step = ipr_setup_write_cache;
5789 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
5792 return IPR_RC_JOB_RETURN;
5796 * ipr_build_mode_sense - Builds a mode sense command
5797 * @ipr_cmd: ipr command struct
5798 * @res: resource entry struct
5799 * @parm: Byte 2 of mode sense command
5800 * @dma_addr: DMA address of mode sense buffer
5801 * @xfer_len: Size of DMA buffer
5806 static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
5808 u8 parm, u32 dma_addr, u8 xfer_len)
5810 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
5811 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5813 ioarcb->res_handle = res_handle;
5814 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE;
5815 ioarcb->cmd_pkt.cdb[2] = parm;
5816 ioarcb->cmd_pkt.cdb[4] = xfer_len;
5817 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
5819 ioadl->flags_and_data_len =
5820 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | xfer_len);
5821 ioadl->address = cpu_to_be32(dma_addr);
5822 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
5823 ioarcb->read_data_transfer_length = cpu_to_be32(xfer_len);
5827 * ipr_reset_cmd_failed - Handle failure of IOA reset command
5828 * @ipr_cmd: ipr command struct
5830 * This function handles the failure of an IOA bringup command.
5835 static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
5837 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5838 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
5840 dev_err(&ioa_cfg->pdev->dev,
5841 "0x%02X failed with IOASC: 0x%08X\n",
5842 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
5844 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5845 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5846 return IPR_RC_JOB_RETURN;
5850 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
5851 * @ipr_cmd: ipr command struct
5853 * This function handles the failure of a Mode Sense to the IOAFP.
5854 * Some adapters do not handle all mode pages.
5857 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
5859 static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
5861 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
5863 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
5864 ipr_cmd->job_step = ipr_setup_write_cache;
5865 return IPR_RC_JOB_CONTINUE;
5868 return ipr_reset_cmd_failed(ipr_cmd);
5872 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
5873 * @ipr_cmd: ipr command struct
5875 * This function send a Page 28 mode sense to the IOA to
5876 * retrieve SCSI bus attributes.
5881 static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
5883 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5886 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
5887 0x28, ioa_cfg->vpd_cbs_dma +
5888 offsetof(struct ipr_misc_cbs, mode_pages),
5889 sizeof(struct ipr_mode_pages));
5891 ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
5892 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed;
5894 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
5897 return IPR_RC_JOB_RETURN;
5901 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA
5902 * @ipr_cmd: ipr command struct
5904 * This function enables dual IOA RAID support if possible.
5909 static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd)
5911 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5912 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
5913 struct ipr_mode_page24 *mode_page;
5917 mode_page = ipr_get_mode_page(mode_pages, 0x24,
5918 sizeof(struct ipr_mode_page24));
5921 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF;
5923 length = mode_pages->hdr.length + 1;
5924 mode_pages->hdr.length = 0;
5926 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
5927 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
5930 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
5931 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
5934 return IPR_RC_JOB_RETURN;
5938 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense
5939 * @ipr_cmd: ipr command struct
5941 * This function handles the failure of a Mode Sense to the IOAFP.
5942 * Some adapters do not handle all mode pages.
5945 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
5947 static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd)
5949 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
5951 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
5952 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
5953 return IPR_RC_JOB_CONTINUE;
5956 return ipr_reset_cmd_failed(ipr_cmd);
5960 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA
5961 * @ipr_cmd: ipr command struct
5963 * This function send a mode sense to the IOA to retrieve
5964 * the IOA Advanced Function Control mode page.
5969 static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd)
5971 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5974 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
5975 0x24, ioa_cfg->vpd_cbs_dma +
5976 offsetof(struct ipr_misc_cbs, mode_pages),
5977 sizeof(struct ipr_mode_pages));
5979 ipr_cmd->job_step = ipr_ioafp_mode_select_page24;
5980 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed;
5982 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
5985 return IPR_RC_JOB_RETURN;
5989 * ipr_init_res_table - Initialize the resource table
5990 * @ipr_cmd: ipr command struct
5992 * This function looks through the existing resource table, comparing
5993 * it with the config table. This function will take care of old/new
5994 * devices and schedule adding/removing them from the mid-layer
5998 * IPR_RC_JOB_CONTINUE
6000 static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
6002 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6003 struct ipr_resource_entry *res, *temp;
6004 struct ipr_config_table_entry *cfgte;
6009 if (ioa_cfg->cfg_table->hdr.flags & IPR_UCODE_DOWNLOAD_REQ)
6010 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n");
6012 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue)
6013 list_move_tail(&res->queue, &old_res);
6015 for (i = 0; i < ioa_cfg->cfg_table->hdr.num_entries; i++) {
6016 cfgte = &ioa_cfg->cfg_table->dev[i];
6019 list_for_each_entry_safe(res, temp, &old_res, queue) {
6020 if (!memcmp(&res->cfgte.res_addr,
6021 &cfgte->res_addr, sizeof(cfgte->res_addr))) {
6022 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
6029 if (list_empty(&ioa_cfg->free_res_q)) {
6030 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n");
6035 res = list_entry(ioa_cfg->free_res_q.next,
6036 struct ipr_resource_entry, queue);
6037 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
6038 ipr_init_res_entry(res);
6043 memcpy(&res->cfgte, cfgte, sizeof(struct ipr_config_table_entry));
6046 list_for_each_entry_safe(res, temp, &old_res, queue) {
6048 res->del_from_ml = 1;
6049 res->cfgte.res_handle = IPR_INVALID_RES_HANDLE;
6050 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
6052 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
6056 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
6057 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24;
6059 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
6062 return IPR_RC_JOB_CONTINUE;
6066 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter.
6067 * @ipr_cmd: ipr command struct
6069 * This function sends a Query IOA Configuration command
6070 * to the adapter to retrieve the IOA configuration table.
6075 static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd)
6077 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6078 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6079 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
6080 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
6081 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
6084 if (cap->cap & IPR_CAP_DUAL_IOA_RAID)
6085 ioa_cfg->dual_raid = 1;
6086 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n",
6087 ucode_vpd->major_release, ucode_vpd->card_type,
6088 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]);
6089 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6090 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6092 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG;
6093 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_config_table) >> 8) & 0xff;
6094 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_config_table) & 0xff;
6096 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
6097 ioarcb->read_data_transfer_length =
6098 cpu_to_be32(sizeof(struct ipr_config_table));
6100 ioadl->address = cpu_to_be32(ioa_cfg->cfg_table_dma);
6101 ioadl->flags_and_data_len =
6102 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | sizeof(struct ipr_config_table));
6104 ipr_cmd->job_step = ipr_init_res_table;
6106 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6109 return IPR_RC_JOB_RETURN;
6113 * ipr_ioafp_inquiry - Send an Inquiry to the adapter.
6114 * @ipr_cmd: ipr command struct
6116 * This utility function sends an inquiry to the adapter.
6121 static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
6122 u32 dma_addr, u8 xfer_len)
6124 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6125 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
6128 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6129 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6131 ioarcb->cmd_pkt.cdb[0] = INQUIRY;
6132 ioarcb->cmd_pkt.cdb[1] = flags;
6133 ioarcb->cmd_pkt.cdb[2] = page;
6134 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6136 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
6137 ioarcb->read_data_transfer_length = cpu_to_be32(xfer_len);
6139 ioadl->address = cpu_to_be32(dma_addr);
6140 ioadl->flags_and_data_len =
6141 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | xfer_len);
6143 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6148 * ipr_inquiry_page_supported - Is the given inquiry page supported
6149 * @page0: inquiry page 0 buffer
6152 * This function determines if the specified inquiry page is supported.
6155 * 1 if page is supported / 0 if not
6157 static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page)
6161 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++)
6162 if (page0->page[i] == page)
6169 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter.
6170 * @ipr_cmd: ipr command struct
6172 * This function sends a Page 0xD0 inquiry to the adapter
6173 * to retrieve adapter capabilities.
6176 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6178 static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd)
6180 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6181 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
6182 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
6185 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
6186 memset(cap, 0, sizeof(*cap));
6188 if (ipr_inquiry_page_supported(page0, 0xD0)) {
6189 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0,
6190 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap),
6191 sizeof(struct ipr_inquiry_cap));
6192 return IPR_RC_JOB_RETURN;
6196 return IPR_RC_JOB_CONTINUE;
6200 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
6201 * @ipr_cmd: ipr command struct
6203 * This function sends a Page 3 inquiry to the adapter
6204 * to retrieve software VPD information.
6207 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6209 static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
6211 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6212 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
6216 if (!ipr_inquiry_page_supported(page0, 1))
6217 ioa_cfg->cache_state = CACHE_NONE;
6219 ipr_cmd->job_step = ipr_ioafp_cap_inquiry;
6221 ipr_ioafp_inquiry(ipr_cmd, 1, 3,
6222 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
6223 sizeof(struct ipr_inquiry_page3));
6226 return IPR_RC_JOB_RETURN;
6230 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
6231 * @ipr_cmd: ipr command struct
6233 * This function sends a Page 0 inquiry to the adapter
6234 * to retrieve supported inquiry pages.
6237 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6239 static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
6241 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6246 /* Grab the type out of the VPD and store it away */
6247 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4);
6249 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
6251 ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
6253 ipr_ioafp_inquiry(ipr_cmd, 1, 0,
6254 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data),
6255 sizeof(struct ipr_inquiry_page0));
6258 return IPR_RC_JOB_RETURN;
6262 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter.
6263 * @ipr_cmd: ipr command struct
6265 * This function sends a standard inquiry to the adapter.
6270 static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
6272 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6275 ipr_cmd->job_step = ipr_ioafp_page0_inquiry;
6277 ipr_ioafp_inquiry(ipr_cmd, 0, 0,
6278 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
6279 sizeof(struct ipr_ioa_vpd));
6282 return IPR_RC_JOB_RETURN;
6286 * ipr_ioafp_indentify_hrrq - Send Identify Host RRQ.
6287 * @ipr_cmd: ipr command struct
6289 * This function send an Identify Host Request Response Queue
6290 * command to establish the HRRQ with the adapter.
6295 static int ipr_ioafp_indentify_hrrq(struct ipr_cmnd *ipr_cmd)
6297 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6298 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6301 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
6303 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q;
6304 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6306 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6307 ioarcb->cmd_pkt.cdb[2] =
6308 ((u32) ioa_cfg->host_rrq_dma >> 24) & 0xff;
6309 ioarcb->cmd_pkt.cdb[3] =
6310 ((u32) ioa_cfg->host_rrq_dma >> 16) & 0xff;
6311 ioarcb->cmd_pkt.cdb[4] =
6312 ((u32) ioa_cfg->host_rrq_dma >> 8) & 0xff;
6313 ioarcb->cmd_pkt.cdb[5] =
6314 ((u32) ioa_cfg->host_rrq_dma) & 0xff;
6315 ioarcb->cmd_pkt.cdb[7] =
6316 ((sizeof(u32) * IPR_NUM_CMD_BLKS) >> 8) & 0xff;
6317 ioarcb->cmd_pkt.cdb[8] =
6318 (sizeof(u32) * IPR_NUM_CMD_BLKS) & 0xff;
6320 ipr_cmd->job_step = ipr_ioafp_std_inquiry;
6322 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6325 return IPR_RC_JOB_RETURN;
6329 * ipr_reset_timer_done - Adapter reset timer function
6330 * @ipr_cmd: ipr command struct
6332 * Description: This function is used in adapter reset processing
6333 * for timing events. If the reset_cmd pointer in the IOA
6334 * config struct is not this adapter's we are doing nested
6335 * resets and fail_all_ops will take care of freeing the
6341 static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd)
6343 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6344 unsigned long lock_flags = 0;
6346 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
6348 if (ioa_cfg->reset_cmd == ipr_cmd) {
6349 list_del(&ipr_cmd->queue);
6350 ipr_cmd->done(ipr_cmd);
6353 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
6357 * ipr_reset_start_timer - Start a timer for adapter reset job
6358 * @ipr_cmd: ipr command struct
6359 * @timeout: timeout value
6361 * Description: This function is used in adapter reset processing
6362 * for timing events. If the reset_cmd pointer in the IOA
6363 * config struct is not this adapter's we are doing nested
6364 * resets and fail_all_ops will take care of freeing the
6370 static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
6371 unsigned long timeout)
6373 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
6374 ipr_cmd->done = ipr_reset_ioa_job;
6376 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
6377 ipr_cmd->timer.expires = jiffies + timeout;
6378 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done;
6379 add_timer(&ipr_cmd->timer);
6383 * ipr_init_ioa_mem - Initialize ioa_cfg control block
6384 * @ioa_cfg: ioa cfg struct
6389 static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg)
6391 memset(ioa_cfg->host_rrq, 0, sizeof(u32) * IPR_NUM_CMD_BLKS);
6393 /* Initialize Host RRQ pointers */
6394 ioa_cfg->hrrq_start = ioa_cfg->host_rrq;
6395 ioa_cfg->hrrq_end = &ioa_cfg->host_rrq[IPR_NUM_CMD_BLKS - 1];
6396 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
6397 ioa_cfg->toggle_bit = 1;
6399 /* Zero out config table */
6400 memset(ioa_cfg->cfg_table, 0, sizeof(struct ipr_config_table));
6404 * ipr_reset_enable_ioa - Enable the IOA following a reset.
6405 * @ipr_cmd: ipr command struct
6407 * This function reinitializes some control blocks and
6408 * enables destructive diagnostics on the adapter.
6413 static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
6415 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6416 volatile u32 int_reg;
6419 ipr_cmd->job_step = ipr_ioafp_indentify_hrrq;
6420 ipr_init_ioa_mem(ioa_cfg);
6422 ioa_cfg->allow_interrupts = 1;
6423 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
6425 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
6426 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED),
6427 ioa_cfg->regs.clr_interrupt_mask_reg);
6428 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
6429 return IPR_RC_JOB_CONTINUE;
6432 /* Enable destructive diagnostics on IOA */
6433 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg);
6435 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg);
6436 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
6438 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n");
6440 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
6441 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
6442 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
6443 ipr_cmd->done = ipr_reset_ioa_job;
6444 add_timer(&ipr_cmd->timer);
6445 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
6448 return IPR_RC_JOB_RETURN;
6452 * ipr_reset_wait_for_dump - Wait for a dump to timeout.
6453 * @ipr_cmd: ipr command struct
6455 * This function is invoked when an adapter dump has run out
6456 * of processing time.
6459 * IPR_RC_JOB_CONTINUE
6461 static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd)
6463 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6465 if (ioa_cfg->sdt_state == GET_DUMP)
6466 ioa_cfg->sdt_state = ABORT_DUMP;
6468 ipr_cmd->job_step = ipr_reset_alert;
6470 return IPR_RC_JOB_CONTINUE;
6474 * ipr_unit_check_no_data - Log a unit check/no data error log
6475 * @ioa_cfg: ioa config struct
6477 * Logs an error indicating the adapter unit checked, but for some
6478 * reason, we were unable to fetch the unit check buffer.
6483 static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg)
6485 ioa_cfg->errors_logged++;
6486 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n");
6490 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA
6491 * @ioa_cfg: ioa config struct
6493 * Fetches the unit check buffer from the adapter by clocking the data
6494 * through the mailbox register.
6499 static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
6501 unsigned long mailbox;
6502 struct ipr_hostrcb *hostrcb;
6503 struct ipr_uc_sdt sdt;
6507 mailbox = readl(ioa_cfg->ioa_mailbox);
6509 if (!ipr_sdt_is_fmt2(mailbox)) {
6510 ipr_unit_check_no_data(ioa_cfg);
6514 memset(&sdt, 0, sizeof(struct ipr_uc_sdt));
6515 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt,
6516 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32));
6518 if (rc || (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE) ||
6519 !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY)) {
6520 ipr_unit_check_no_data(ioa_cfg);
6524 /* Find length of the first sdt entry (UC buffer) */
6525 length = (be32_to_cpu(sdt.entry[0].end_offset) -
6526 be32_to_cpu(sdt.entry[0].bar_str_offset)) & IPR_FMT2_MBX_ADDR_MASK;
6528 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next,
6529 struct ipr_hostrcb, queue);
6530 list_del(&hostrcb->queue);
6531 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam));
6533 rc = ipr_get_ldump_data_section(ioa_cfg,
6534 be32_to_cpu(sdt.entry[0].bar_str_offset),
6535 (__be32 *)&hostrcb->hcam,
6536 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32));
6539 ipr_handle_log_data(ioa_cfg, hostrcb);
6540 ioasc = be32_to_cpu(hostrcb->hcam.u.error.failing_dev_ioasc);
6541 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED &&
6542 ioa_cfg->sdt_state == GET_DUMP)
6543 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
6545 ipr_unit_check_no_data(ioa_cfg);
6547 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
6551 * ipr_reset_restore_cfg_space - Restore PCI config space.
6552 * @ipr_cmd: ipr command struct
6554 * Description: This function restores the saved PCI config space of
6555 * the adapter, fails all outstanding ops back to the callers, and
6556 * fetches the dump/unit check if applicable to this reset.
6559 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6561 static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
6563 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6567 rc = pci_restore_state(ioa_cfg->pdev);
6569 if (rc != PCIBIOS_SUCCESSFUL) {
6570 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
6571 return IPR_RC_JOB_CONTINUE;
6574 if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
6575 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
6576 return IPR_RC_JOB_CONTINUE;
6579 ipr_fail_all_ops(ioa_cfg);
6581 if (ioa_cfg->ioa_unit_checked) {
6582 ioa_cfg->ioa_unit_checked = 0;
6583 ipr_get_unit_check_buffer(ioa_cfg);
6584 ipr_cmd->job_step = ipr_reset_alert;
6585 ipr_reset_start_timer(ipr_cmd, 0);
6586 return IPR_RC_JOB_RETURN;
6589 if (ioa_cfg->in_ioa_bringdown) {
6590 ipr_cmd->job_step = ipr_ioa_bringdown_done;
6592 ipr_cmd->job_step = ipr_reset_enable_ioa;
6594 if (GET_DUMP == ioa_cfg->sdt_state) {
6595 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_TIMEOUT);
6596 ipr_cmd->job_step = ipr_reset_wait_for_dump;
6597 schedule_work(&ioa_cfg->work_q);
6598 return IPR_RC_JOB_RETURN;
6603 return IPR_RC_JOB_CONTINUE;
6607 * ipr_reset_bist_done - BIST has completed on the adapter.
6608 * @ipr_cmd: ipr command struct
6610 * Description: Unblock config space and resume the reset process.
6613 * IPR_RC_JOB_CONTINUE
6615 static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd)
6618 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev);
6619 ipr_cmd->job_step = ipr_reset_restore_cfg_space;
6621 return IPR_RC_JOB_CONTINUE;
6625 * ipr_reset_start_bist - Run BIST on the adapter.
6626 * @ipr_cmd: ipr command struct
6628 * Description: This function runs BIST on the adapter, then delays 2 seconds.
6631 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6633 static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
6635 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6639 pci_block_user_cfg_access(ioa_cfg->pdev);
6640 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START);
6642 if (rc != PCIBIOS_SUCCESSFUL) {
6643 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev);
6644 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
6645 rc = IPR_RC_JOB_CONTINUE;
6647 ipr_cmd->job_step = ipr_reset_bist_done;
6648 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
6649 rc = IPR_RC_JOB_RETURN;
6657 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter
6658 * @ipr_cmd: ipr command struct
6660 * Description: This clears PCI reset to the adapter and delays two seconds.
6665 static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd)
6668 pci_set_pcie_reset_state(ipr_cmd->ioa_cfg->pdev, pcie_deassert_reset);
6669 ipr_cmd->job_step = ipr_reset_bist_done;
6670 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
6672 return IPR_RC_JOB_RETURN;
6676 * ipr_reset_slot_reset - Reset the PCI slot of the adapter.
6677 * @ipr_cmd: ipr command struct
6679 * Description: This asserts PCI reset to the adapter.
6684 static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd)
6686 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6687 struct pci_dev *pdev = ioa_cfg->pdev;
6690 pci_block_user_cfg_access(pdev);
6691 pci_set_pcie_reset_state(pdev, pcie_warm_reset);
6692 ipr_cmd->job_step = ipr_reset_slot_reset_done;
6693 ipr_reset_start_timer(ipr_cmd, IPR_PCI_RESET_TIMEOUT);
6695 return IPR_RC_JOB_RETURN;
6699 * ipr_reset_allowed - Query whether or not IOA can be reset
6700 * @ioa_cfg: ioa config struct
6703 * 0 if reset not allowed / non-zero if reset is allowed
6705 static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg)
6707 volatile u32 temp_reg;
6709 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
6710 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0);
6714 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA.
6715 * @ipr_cmd: ipr command struct
6717 * Description: This function waits for adapter permission to run BIST,
6718 * then runs BIST. If the adapter does not give permission after a
6719 * reasonable time, we will reset the adapter anyway. The impact of
6720 * resetting the adapter without warning the adapter is the risk of
6721 * losing the persistent error log on the adapter. If the adapter is
6722 * reset while it is writing to the flash on the adapter, the flash
6723 * segment will have bad ECC and be zeroed.
6726 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6728 static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd)
6730 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6731 int rc = IPR_RC_JOB_RETURN;
6733 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) {
6734 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
6735 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
6737 ipr_cmd->job_step = ioa_cfg->reset;
6738 rc = IPR_RC_JOB_CONTINUE;
6745 * ipr_reset_alert_part2 - Alert the adapter of a pending reset
6746 * @ipr_cmd: ipr command struct
6748 * Description: This function alerts the adapter that it will be reset.
6749 * If memory space is not currently enabled, proceed directly
6750 * to running BIST on the adapter. The timer must always be started
6751 * so we guarantee we do not run BIST from ipr_isr.
6756 static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd)
6758 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6763 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg);
6765 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) {
6766 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
6767 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg);
6768 ipr_cmd->job_step = ipr_reset_wait_to_start_bist;
6770 ipr_cmd->job_step = ioa_cfg->reset;
6773 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
6774 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
6777 return IPR_RC_JOB_RETURN;
6781 * ipr_reset_ucode_download_done - Microcode download completion
6782 * @ipr_cmd: ipr command struct
6784 * Description: This function unmaps the microcode download buffer.
6787 * IPR_RC_JOB_CONTINUE
6789 static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd)
6791 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6792 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
6794 pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist,
6795 sglist->num_sg, DMA_TO_DEVICE);
6797 ipr_cmd->job_step = ipr_reset_alert;
6798 return IPR_RC_JOB_CONTINUE;
6802 * ipr_reset_ucode_download - Download microcode to the adapter
6803 * @ipr_cmd: ipr command struct
6805 * Description: This function checks to see if it there is microcode
6806 * to download to the adapter. If there is, a download is performed.
6809 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6811 static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
6813 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6814 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
6817 ipr_cmd->job_step = ipr_reset_alert;
6820 return IPR_RC_JOB_CONTINUE;
6822 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6823 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6824 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER;
6825 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE;
6826 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16;
6827 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
6828 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
6830 ipr_build_ucode_ioadl(ipr_cmd, sglist);
6831 ipr_cmd->job_step = ipr_reset_ucode_download_done;
6833 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
6834 IPR_WRITE_BUFFER_TIMEOUT);
6837 return IPR_RC_JOB_RETURN;
6841 * ipr_reset_shutdown_ioa - Shutdown the adapter
6842 * @ipr_cmd: ipr command struct
6844 * Description: This function issues an adapter shutdown of the
6845 * specified type to the specified adapter as part of the
6846 * adapter reset job.
6849 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6851 static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
6853 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6854 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type;
6855 unsigned long timeout;
6856 int rc = IPR_RC_JOB_CONTINUE;
6859 if (shutdown_type != IPR_SHUTDOWN_NONE && !ioa_cfg->ioa_is_dead) {
6860 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6861 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6862 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
6863 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type;
6865 if (shutdown_type == IPR_SHUTDOWN_NORMAL)
6866 timeout = IPR_SHUTDOWN_TIMEOUT;
6867 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL)
6868 timeout = IPR_INTERNAL_TIMEOUT;
6869 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
6870 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO;
6872 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT;
6874 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout);
6876 rc = IPR_RC_JOB_RETURN;
6877 ipr_cmd->job_step = ipr_reset_ucode_download;
6879 ipr_cmd->job_step = ipr_reset_alert;
6886 * ipr_reset_ioa_job - Adapter reset job
6887 * @ipr_cmd: ipr command struct
6889 * Description: This function is the job router for the adapter reset job.
6894 static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
6897 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6900 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
6902 if (ioa_cfg->reset_cmd != ipr_cmd) {
6904 * We are doing nested adapter resets and this is
6905 * not the current reset job.
6907 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6911 if (IPR_IOASC_SENSE_KEY(ioasc)) {
6912 rc = ipr_cmd->job_step_failed(ipr_cmd);
6913 if (rc == IPR_RC_JOB_RETURN)
6917 ipr_reinit_ipr_cmnd(ipr_cmd);
6918 ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
6919 rc = ipr_cmd->job_step(ipr_cmd);
6920 } while(rc == IPR_RC_JOB_CONTINUE);
6924 * _ipr_initiate_ioa_reset - Initiate an adapter reset
6925 * @ioa_cfg: ioa config struct
6926 * @job_step: first job step of reset job
6927 * @shutdown_type: shutdown type
6929 * Description: This function will initiate the reset of the given adapter
6930 * starting at the selected job step.
6931 * If the caller needs to wait on the completion of the reset,
6932 * the caller must sleep on the reset_wait_q.
6937 static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
6938 int (*job_step) (struct ipr_cmnd *),
6939 enum ipr_shutdown_type shutdown_type)
6941 struct ipr_cmnd *ipr_cmd;
6943 ioa_cfg->in_reset_reload = 1;
6944 ioa_cfg->allow_cmds = 0;
6945 scsi_block_requests(ioa_cfg->host);
6947 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
6948 ioa_cfg->reset_cmd = ipr_cmd;
6949 ipr_cmd->job_step = job_step;
6950 ipr_cmd->u.shutdown_type = shutdown_type;
6952 ipr_reset_ioa_job(ipr_cmd);
6956 * ipr_initiate_ioa_reset - Initiate an adapter reset
6957 * @ioa_cfg: ioa config struct
6958 * @shutdown_type: shutdown type
6960 * Description: This function will initiate the reset of the given adapter.
6961 * If the caller needs to wait on the completion of the reset,
6962 * the caller must sleep on the reset_wait_q.
6967 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
6968 enum ipr_shutdown_type shutdown_type)
6970 if (ioa_cfg->ioa_is_dead)
6973 if (ioa_cfg->in_reset_reload && ioa_cfg->sdt_state == GET_DUMP)
6974 ioa_cfg->sdt_state = ABORT_DUMP;
6976 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) {
6977 dev_err(&ioa_cfg->pdev->dev,
6978 "IOA taken offline - error recovery failed\n");
6980 ioa_cfg->reset_retries = 0;
6981 ioa_cfg->ioa_is_dead = 1;
6983 if (ioa_cfg->in_ioa_bringdown) {
6984 ioa_cfg->reset_cmd = NULL;
6985 ioa_cfg->in_reset_reload = 0;
6986 ipr_fail_all_ops(ioa_cfg);
6987 wake_up_all(&ioa_cfg->reset_wait_q);
6989 spin_unlock_irq(ioa_cfg->host->host_lock);
6990 scsi_unblock_requests(ioa_cfg->host);
6991 spin_lock_irq(ioa_cfg->host->host_lock);
6994 ioa_cfg->in_ioa_bringdown = 1;
6995 shutdown_type = IPR_SHUTDOWN_NONE;
6999 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa,
7004 * ipr_reset_freeze - Hold off all I/O activity
7005 * @ipr_cmd: ipr command struct
7007 * Description: If the PCI slot is frozen, hold off all I/O
7008 * activity; then, as soon as the slot is available again,
7009 * initiate an adapter reset.
7011 static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd)
7013 /* Disallow new interrupts, avoid loop */
7014 ipr_cmd->ioa_cfg->allow_interrupts = 0;
7015 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
7016 ipr_cmd->done = ipr_reset_ioa_job;
7017 return IPR_RC_JOB_RETURN;
7021 * ipr_pci_frozen - Called when slot has experienced a PCI bus error.
7022 * @pdev: PCI device struct
7024 * Description: This routine is called to tell us that the PCI bus
7025 * is down. Can't do anything here, except put the device driver
7026 * into a holding pattern, waiting for the PCI bus to come back.
7028 static void ipr_pci_frozen(struct pci_dev *pdev)
7030 unsigned long flags = 0;
7031 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7033 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
7034 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE);
7035 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
7039 * ipr_pci_slot_reset - Called when PCI slot has been reset.
7040 * @pdev: PCI device struct
7042 * Description: This routine is called by the pci error recovery
7043 * code after the PCI slot has been reset, just before we
7044 * should resume normal operations.
7046 static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev)
7048 unsigned long flags = 0;
7049 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7051 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
7052 if (ioa_cfg->needs_warm_reset)
7053 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7055 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space,
7057 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
7058 return PCI_ERS_RESULT_RECOVERED;
7062 * ipr_pci_perm_failure - Called when PCI slot is dead for good.
7063 * @pdev: PCI device struct
7065 * Description: This routine is called when the PCI bus has
7066 * permanently failed.
7068 static void ipr_pci_perm_failure(struct pci_dev *pdev)
7070 unsigned long flags = 0;
7071 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7073 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
7074 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
7075 ioa_cfg->sdt_state = ABORT_DUMP;
7076 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES;
7077 ioa_cfg->in_ioa_bringdown = 1;
7078 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7079 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
7083 * ipr_pci_error_detected - Called when a PCI error is detected.
7084 * @pdev: PCI device struct
7085 * @state: PCI channel state
7087 * Description: Called when a PCI error is detected.
7090 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
7092 static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
7093 pci_channel_state_t state)
7096 case pci_channel_io_frozen:
7097 ipr_pci_frozen(pdev);
7098 return PCI_ERS_RESULT_NEED_RESET;
7099 case pci_channel_io_perm_failure:
7100 ipr_pci_perm_failure(pdev);
7101 return PCI_ERS_RESULT_DISCONNECT;
7106 return PCI_ERS_RESULT_NEED_RESET;
7110 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..)
7111 * @ioa_cfg: ioa cfg struct
7113 * Description: This is the second phase of adapter intialization
7114 * This function takes care of initilizing the adapter to the point
7115 * where it can accept new commands.
7118 * 0 on sucess / -EIO on failure
7120 static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
7123 unsigned long host_lock_flags = 0;
7126 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7127 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
7128 if (ioa_cfg->needs_hard_reset) {
7129 ioa_cfg->needs_hard_reset = 0;
7130 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7132 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa,
7135 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7136 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
7137 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7139 if (ioa_cfg->ioa_is_dead) {
7141 } else if (ipr_invalid_adapter(ioa_cfg)) {
7145 dev_err(&ioa_cfg->pdev->dev,
7146 "Adapter not supported in this hardware configuration.\n");
7149 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7156 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter
7157 * @ioa_cfg: ioa config struct
7162 static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
7166 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
7167 if (ioa_cfg->ipr_cmnd_list[i])
7168 pci_pool_free(ioa_cfg->ipr_cmd_pool,
7169 ioa_cfg->ipr_cmnd_list[i],
7170 ioa_cfg->ipr_cmnd_list_dma[i]);
7172 ioa_cfg->ipr_cmnd_list[i] = NULL;
7175 if (ioa_cfg->ipr_cmd_pool)
7176 pci_pool_destroy (ioa_cfg->ipr_cmd_pool);
7178 ioa_cfg->ipr_cmd_pool = NULL;
7182 * ipr_free_mem - Frees memory allocated for an adapter
7183 * @ioa_cfg: ioa cfg struct
7188 static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg)
7192 kfree(ioa_cfg->res_entries);
7193 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs),
7194 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
7195 ipr_free_cmd_blks(ioa_cfg);
7196 pci_free_consistent(ioa_cfg->pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
7197 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
7198 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_config_table),
7200 ioa_cfg->cfg_table_dma);
7202 for (i = 0; i < IPR_NUM_HCAMS; i++) {
7203 pci_free_consistent(ioa_cfg->pdev,
7204 sizeof(struct ipr_hostrcb),
7205 ioa_cfg->hostrcb[i],
7206 ioa_cfg->hostrcb_dma[i]);
7209 ipr_free_dump(ioa_cfg);
7210 kfree(ioa_cfg->trace);
7214 * ipr_free_all_resources - Free all allocated resources for an adapter.
7215 * @ipr_cmd: ipr command struct
7217 * This function frees all allocated resources for the
7218 * specified adapter.
7223 static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
7225 struct pci_dev *pdev = ioa_cfg->pdev;
7228 free_irq(pdev->irq, ioa_cfg);
7229 iounmap(ioa_cfg->hdw_dma_regs);
7230 pci_release_regions(pdev);
7231 ipr_free_mem(ioa_cfg);
7232 scsi_host_put(ioa_cfg->host);
7233 pci_disable_device(pdev);
7238 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter
7239 * @ioa_cfg: ioa config struct
7242 * 0 on success / -ENOMEM on allocation failure
7244 static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
7246 struct ipr_cmnd *ipr_cmd;
7247 struct ipr_ioarcb *ioarcb;
7248 dma_addr_t dma_addr;
7251 ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev,
7252 sizeof(struct ipr_cmnd), 8, 0);
7254 if (!ioa_cfg->ipr_cmd_pool)
7257 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
7258 ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr);
7261 ipr_free_cmd_blks(ioa_cfg);
7265 memset(ipr_cmd, 0, sizeof(*ipr_cmd));
7266 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd;
7267 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr;
7269 ioarcb = &ipr_cmd->ioarcb;
7270 ioarcb->ioarcb_host_pci_addr = cpu_to_be32(dma_addr);
7271 ioarcb->host_response_handle = cpu_to_be32(i << 2);
7272 ioarcb->write_ioadl_addr =
7273 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioadl));
7274 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
7275 ioarcb->ioasa_host_pci_addr =
7276 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioasa));
7277 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa));
7278 ipr_cmd->cmd_index = i;
7279 ipr_cmd->ioa_cfg = ioa_cfg;
7280 ipr_cmd->sense_buffer_dma = dma_addr +
7281 offsetof(struct ipr_cmnd, sense_buffer);
7283 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
7290 * ipr_alloc_mem - Allocate memory for an adapter
7291 * @ioa_cfg: ioa config struct
7294 * 0 on success / non-zero for error
7296 static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
7298 struct pci_dev *pdev = ioa_cfg->pdev;
7299 int i, rc = -ENOMEM;
7302 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) *
7303 IPR_MAX_PHYSICAL_DEVS, GFP_KERNEL);
7305 if (!ioa_cfg->res_entries)
7308 for (i = 0; i < IPR_MAX_PHYSICAL_DEVS; i++)
7309 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
7311 ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev,
7312 sizeof(struct ipr_misc_cbs),
7313 &ioa_cfg->vpd_cbs_dma);
7315 if (!ioa_cfg->vpd_cbs)
7316 goto out_free_res_entries;
7318 if (ipr_alloc_cmd_blks(ioa_cfg))
7319 goto out_free_vpd_cbs;
7321 ioa_cfg->host_rrq = pci_alloc_consistent(ioa_cfg->pdev,
7322 sizeof(u32) * IPR_NUM_CMD_BLKS,
7323 &ioa_cfg->host_rrq_dma);
7325 if (!ioa_cfg->host_rrq)
7326 goto out_ipr_free_cmd_blocks;
7328 ioa_cfg->cfg_table = pci_alloc_consistent(ioa_cfg->pdev,
7329 sizeof(struct ipr_config_table),
7330 &ioa_cfg->cfg_table_dma);
7332 if (!ioa_cfg->cfg_table)
7333 goto out_free_host_rrq;
7335 for (i = 0; i < IPR_NUM_HCAMS; i++) {
7336 ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev,
7337 sizeof(struct ipr_hostrcb),
7338 &ioa_cfg->hostrcb_dma[i]);
7340 if (!ioa_cfg->hostrcb[i])
7341 goto out_free_hostrcb_dma;
7343 ioa_cfg->hostrcb[i]->hostrcb_dma =
7344 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam);
7345 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg;
7346 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
7349 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) *
7350 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL);
7352 if (!ioa_cfg->trace)
7353 goto out_free_hostrcb_dma;
7360 out_free_hostrcb_dma:
7362 pci_free_consistent(pdev, sizeof(struct ipr_hostrcb),
7363 ioa_cfg->hostrcb[i],
7364 ioa_cfg->hostrcb_dma[i]);
7366 pci_free_consistent(pdev, sizeof(struct ipr_config_table),
7367 ioa_cfg->cfg_table, ioa_cfg->cfg_table_dma);
7369 pci_free_consistent(pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
7370 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
7371 out_ipr_free_cmd_blocks:
7372 ipr_free_cmd_blks(ioa_cfg);
7374 pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs),
7375 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
7376 out_free_res_entries:
7377 kfree(ioa_cfg->res_entries);
7382 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values
7383 * @ioa_cfg: ioa config struct
7388 static void __devinit ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg)
7392 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
7393 ioa_cfg->bus_attr[i].bus = i;
7394 ioa_cfg->bus_attr[i].qas_enabled = 0;
7395 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH;
7396 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds))
7397 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed];
7399 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE;
7404 * ipr_init_ioa_cfg - Initialize IOA config struct
7405 * @ioa_cfg: ioa config struct
7406 * @host: scsi host struct
7407 * @pdev: PCI dev struct
7412 static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
7413 struct Scsi_Host *host, struct pci_dev *pdev)
7415 const struct ipr_interrupt_offsets *p;
7416 struct ipr_interrupts *t;
7419 ioa_cfg->host = host;
7420 ioa_cfg->pdev = pdev;
7421 ioa_cfg->log_level = ipr_log_level;
7422 ioa_cfg->doorbell = IPR_DOORBELL;
7423 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
7424 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
7425 sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL);
7426 sprintf(ioa_cfg->ipr_pending_label, IPR_PENDQ_LABEL);
7427 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START);
7428 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL);
7429 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL);
7430 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL);
7432 INIT_LIST_HEAD(&ioa_cfg->free_q);
7433 INIT_LIST_HEAD(&ioa_cfg->pending_q);
7434 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q);
7435 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q);
7436 INIT_LIST_HEAD(&ioa_cfg->free_res_q);
7437 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
7438 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
7439 init_waitqueue_head(&ioa_cfg->reset_wait_q);
7440 ioa_cfg->sdt_state = INACTIVE;
7441 if (ipr_enable_cache)
7442 ioa_cfg->cache_state = CACHE_ENABLED;
7444 ioa_cfg->cache_state = CACHE_DISABLED;
7446 ipr_initialize_bus_attr(ioa_cfg);
7448 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS;
7449 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET;
7450 host->max_channel = IPR_MAX_BUS_TO_SCAN;
7451 host->unique_id = host->host_no;
7452 host->max_cmd_len = IPR_MAX_CDB_LEN;
7453 pci_set_drvdata(pdev, ioa_cfg);
7455 p = &ioa_cfg->chip_cfg->regs;
7457 base = ioa_cfg->hdw_dma_regs;
7459 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
7460 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
7461 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
7462 t->clr_interrupt_reg = base + p->clr_interrupt_reg;
7463 t->sense_interrupt_reg = base + p->sense_interrupt_reg;
7464 t->ioarrin_reg = base + p->ioarrin_reg;
7465 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
7466 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
7467 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
7471 * ipr_get_chip_cfg - Find adapter chip configuration
7472 * @dev_id: PCI device id struct
7475 * ptr to chip config on success / NULL on failure
7477 static const struct ipr_chip_cfg_t * __devinit
7478 ipr_get_chip_cfg(const struct pci_device_id *dev_id)
7482 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++)
7483 if (ipr_chip[i].vendor == dev_id->vendor &&
7484 ipr_chip[i].device == dev_id->device)
7485 return ipr_chip[i].cfg;
7490 * ipr_probe_ioa - Allocates memory and does first stage of initialization
7491 * @pdev: PCI device struct
7492 * @dev_id: PCI device id struct
7495 * 0 on success / non-zero on failure
7497 static int __devinit ipr_probe_ioa(struct pci_dev *pdev,
7498 const struct pci_device_id *dev_id)
7500 struct ipr_ioa_cfg *ioa_cfg;
7501 struct Scsi_Host *host;
7502 unsigned long ipr_regs_pci;
7503 void __iomem *ipr_regs;
7504 int rc = PCIBIOS_SUCCESSFUL;
7505 volatile u32 mask, uproc, interrupts;
7509 if ((rc = pci_enable_device(pdev))) {
7510 dev_err(&pdev->dev, "Cannot enable adapter\n");
7514 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
7516 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
7519 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n");
7524 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
7525 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
7526 ata_host_init(&ioa_cfg->ata_host, &pdev->dev,
7527 sata_port_info.flags, &ipr_sata_ops);
7529 ioa_cfg->chip_cfg = ipr_get_chip_cfg(dev_id);
7531 if (!ioa_cfg->chip_cfg) {
7532 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n",
7533 dev_id->vendor, dev_id->device);
7534 goto out_scsi_host_put;
7537 if (ipr_transop_timeout)
7538 ioa_cfg->transop_timeout = ipr_transop_timeout;
7539 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT)
7540 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT;
7542 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT;
7544 rc = pci_read_config_byte(pdev, PCI_REVISION_ID, &ioa_cfg->revid);
7546 if (rc != PCIBIOS_SUCCESSFUL) {
7547 dev_err(&pdev->dev, "Failed to read PCI revision ID\n");
7549 goto out_scsi_host_put;
7552 ipr_regs_pci = pci_resource_start(pdev, 0);
7554 rc = pci_request_regions(pdev, IPR_NAME);
7557 "Couldn't register memory range of registers\n");
7558 goto out_scsi_host_put;
7561 ipr_regs = ioremap(ipr_regs_pci, pci_resource_len(pdev, 0));
7565 "Couldn't map memory range of registers\n");
7567 goto out_release_regions;
7570 ioa_cfg->hdw_dma_regs = ipr_regs;
7571 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci;
7572 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs;
7574 ipr_init_ioa_cfg(ioa_cfg, host, pdev);
7576 pci_set_master(pdev);
7578 rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
7580 dev_err(&pdev->dev, "Failed to set PCI DMA mask\n");
7584 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
7585 ioa_cfg->chip_cfg->cache_line_size);
7587 if (rc != PCIBIOS_SUCCESSFUL) {
7588 dev_err(&pdev->dev, "Write of cache line size failed\n");
7593 /* Save away PCI config space for use following IOA reset */
7594 rc = pci_save_state(pdev);
7596 if (rc != PCIBIOS_SUCCESSFUL) {
7597 dev_err(&pdev->dev, "Failed to save PCI config space\n");
7602 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg)))
7605 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg)))
7608 rc = ipr_alloc_mem(ioa_cfg);
7611 "Couldn't allocate enough memory for device driver!\n");
7616 * If HRRQ updated interrupt is not masked, or reset alert is set,
7617 * the card is in an unknown state and needs a hard reset
7619 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7620 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg);
7621 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg);
7622 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT))
7623 ioa_cfg->needs_hard_reset = 1;
7624 if (interrupts & IPR_PCII_ERROR_INTERRUPTS)
7625 ioa_cfg->needs_hard_reset = 1;
7626 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED)
7627 ioa_cfg->ioa_unit_checked = 1;
7629 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
7630 rc = request_irq(pdev->irq, ipr_isr, IRQF_SHARED, IPR_NAME, ioa_cfg);
7633 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",
7638 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) ||
7639 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) {
7640 ioa_cfg->needs_warm_reset = 1;
7641 ioa_cfg->reset = ipr_reset_slot_reset;
7643 ioa_cfg->reset = ipr_reset_start_bist;
7645 spin_lock(&ipr_driver_lock);
7646 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head);
7647 spin_unlock(&ipr_driver_lock);
7654 ipr_free_mem(ioa_cfg);
7657 out_release_regions:
7658 pci_release_regions(pdev);
7660 scsi_host_put(host);
7662 pci_disable_device(pdev);
7667 * ipr_scan_vsets - Scans for VSET devices
7668 * @ioa_cfg: ioa config struct
7670 * Description: Since the VSET resources do not follow SAM in that we can have
7671 * sparse LUNs with no LUN 0, we have to scan for these ourselves.
7676 static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg)
7680 for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++)
7681 for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ )
7682 scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun);
7686 * ipr_initiate_ioa_bringdown - Bring down an adapter
7687 * @ioa_cfg: ioa config struct
7688 * @shutdown_type: shutdown type
7690 * Description: This function will initiate bringing down the adapter.
7691 * This consists of issuing an IOA shutdown to the adapter
7692 * to flush the cache, and running BIST.
7693 * If the caller needs to wait on the completion of the reset,
7694 * the caller must sleep on the reset_wait_q.
7699 static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg,
7700 enum ipr_shutdown_type shutdown_type)
7703 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
7704 ioa_cfg->sdt_state = ABORT_DUMP;
7705 ioa_cfg->reset_retries = 0;
7706 ioa_cfg->in_ioa_bringdown = 1;
7707 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
7712 * __ipr_remove - Remove a single adapter
7713 * @pdev: pci device struct
7715 * Adapter hot plug remove entry point.
7720 static void __ipr_remove(struct pci_dev *pdev)
7722 unsigned long host_lock_flags = 0;
7723 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7726 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7727 while(ioa_cfg->in_reset_reload) {
7728 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7729 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
7730 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7733 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
7735 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7736 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
7737 flush_scheduled_work();
7738 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7740 spin_lock(&ipr_driver_lock);
7741 list_del(&ioa_cfg->queue);
7742 spin_unlock(&ipr_driver_lock);
7744 if (ioa_cfg->sdt_state == ABORT_DUMP)
7745 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
7746 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7748 ipr_free_all_resources(ioa_cfg);
7754 * ipr_remove - IOA hot plug remove entry point
7755 * @pdev: pci device struct
7757 * Adapter hot plug remove entry point.
7762 static void ipr_remove(struct pci_dev *pdev)
7764 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7768 ipr_remove_trace_file(&ioa_cfg->host->shost_classdev.kobj,
7770 ipr_remove_dump_file(&ioa_cfg->host->shost_classdev.kobj,
7772 scsi_remove_host(ioa_cfg->host);
7780 * ipr_probe - Adapter hot plug add entry point
7783 * 0 on success / non-zero on failure
7785 static int __devinit ipr_probe(struct pci_dev *pdev,
7786 const struct pci_device_id *dev_id)
7788 struct ipr_ioa_cfg *ioa_cfg;
7791 rc = ipr_probe_ioa(pdev, dev_id);
7796 ioa_cfg = pci_get_drvdata(pdev);
7797 rc = ipr_probe_ioa_part2(ioa_cfg);
7804 rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
7811 rc = ipr_create_trace_file(&ioa_cfg->host->shost_classdev.kobj,
7815 scsi_remove_host(ioa_cfg->host);
7820 rc = ipr_create_dump_file(&ioa_cfg->host->shost_classdev.kobj,
7824 ipr_remove_trace_file(&ioa_cfg->host->shost_classdev.kobj,
7826 scsi_remove_host(ioa_cfg->host);
7831 scsi_scan_host(ioa_cfg->host);
7832 ipr_scan_vsets(ioa_cfg);
7833 scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN);
7834 ioa_cfg->allow_ml_add_del = 1;
7835 ioa_cfg->host->max_channel = IPR_VSET_BUS;
7836 schedule_work(&ioa_cfg->work_q);
7841 * ipr_shutdown - Shutdown handler.
7842 * @pdev: pci device struct
7844 * This function is invoked upon system shutdown/reboot. It will issue
7845 * an adapter shutdown to the adapter to flush the write cache.
7850 static void ipr_shutdown(struct pci_dev *pdev)
7852 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7853 unsigned long lock_flags = 0;
7855 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
7856 while(ioa_cfg->in_reset_reload) {
7857 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
7858 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
7859 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
7862 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
7863 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
7864 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
7867 static struct pci_device_id ipr_pci_table[] __devinitdata = {
7868 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
7869 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 },
7870 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
7871 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 },
7872 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
7873 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 },
7874 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
7875 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 },
7876 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
7877 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 },
7878 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
7879 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 },
7880 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
7881 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 },
7882 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
7883 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0,
7884 IPR_USE_LONG_TRANSOP_TIMEOUT },
7885 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
7886 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
7887 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
7888 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
7889 IPR_USE_LONG_TRANSOP_TIMEOUT },
7890 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
7891 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
7892 IPR_USE_LONG_TRANSOP_TIMEOUT },
7893 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
7894 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
7895 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
7896 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
7897 IPR_USE_LONG_TRANSOP_TIMEOUT},
7898 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
7899 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
7900 IPR_USE_LONG_TRANSOP_TIMEOUT },
7901 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
7902 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0,
7903 IPR_USE_LONG_TRANSOP_TIMEOUT },
7904 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
7905 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575D, 0, 0,
7906 IPR_USE_LONG_TRANSOP_TIMEOUT },
7907 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
7908 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 },
7909 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
7910 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0,
7911 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET },
7912 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
7913 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 },
7914 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
7915 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 },
7916 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
7917 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0,
7918 IPR_USE_LONG_TRANSOP_TIMEOUT },
7919 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
7920 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0,
7921 IPR_USE_LONG_TRANSOP_TIMEOUT },
7922 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SCAMP_E,
7923 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0,
7924 IPR_USE_LONG_TRANSOP_TIMEOUT },
7927 MODULE_DEVICE_TABLE(pci, ipr_pci_table);
7929 static struct pci_error_handlers ipr_err_handler = {
7930 .error_detected = ipr_pci_error_detected,
7931 .slot_reset = ipr_pci_slot_reset,
7934 static struct pci_driver ipr_driver = {
7936 .id_table = ipr_pci_table,
7938 .remove = ipr_remove,
7939 .shutdown = ipr_shutdown,
7940 .err_handler = &ipr_err_handler,
7941 .dynids.use_driver_data = 1
7945 * ipr_init - Module entry point
7948 * 0 on success / negative value on failure
7950 static int __init ipr_init(void)
7952 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n",
7953 IPR_DRIVER_VERSION, IPR_DRIVER_DATE);
7955 return pci_register_driver(&ipr_driver);
7959 * ipr_exit - Module unload
7961 * Module unload entry point.
7966 static void __exit ipr_exit(void)
7968 pci_unregister_driver(&ipr_driver);
7971 module_init(ipr_init);
7972 module_exit(ipr_exit);